[
  {
    "path": ".github/stale.yml",
    "content": "# Number of days of inactivity before an issue becomes stale\ndaysUntilStale: 180\n# Number of days of inactivity before a stale issue is closed\ndaysUntilClose: 14\n# Issues with these labels will never be considered stale\nexemptLabels:\n  - notstale\n  - security\n# Label to use when marking an issue as stale\nstaleLabel: stale\n# Comment to post when marking an issue as stale. Set to `false` to disable\nmarkComment: |\n  This issue has been automatically marked as stale because it has not had\n  recent activity. It will be closed if no further activity occurs.\n\n  This does not mean that the issue is invalid.  Valid issues\n  may be reopened.\n\n  Thank you for your contributions.\n# Comment to post when closing a stale issue. Set to `false` to disable\ncloseComment: false\n"
  },
  {
    "path": ".github/workflows/ci.yml",
    "content": "name: 'CI'\n\non:\n  push:\n    branches:\n      - master\n  pull_request:\n\njobs:\n  ci:\n    needs: [test]\n    runs-on: ubuntu-latest\n    steps:\n      - run: true\n\n  test:\n    name: yarn ${{ matrix.yarncmd }}\n    runs-on: ubuntu-latest\n    strategy:\n      matrix:\n        yarncmd: ['test', 'test:downstream', 'docs']\n    steps:\n      - uses: actions/checkout@v2\n      - name: Configure Environment\n        run: |\n          git config --global user.email uirouter@github.actions\n          git config --global user.name uirouter_github_actions\n      - name: Install Dependencies\n        run: yarn install --pure-lockfile\n      - name: Check Peer Dependencies\n        run: npx check-peer-dependencies\n      - name: Run yarn ${{ matrix.yarncmd }}\n        run: yarn ${{ matrix.yarncmd }}\n"
  },
  {
    "path": ".github/workflows/update_dependencies.yml",
    "content": "# This workflow requires a personal access token for uirouterbot\nname: Weekly Dependency Bumps\non:\n  repository_dispatch:\n    types: [update_dependencies]\n  schedule:\n    - cron: '0 20 * * 0'\n\njobs:\n  upgrade-dependencies:\n    runs-on: ubuntu-latest\n    name: Update dependencies\n    strategy:\n      matrix:\n        excludes: ['']\n        deptype: ['dependencies', 'devDependencies']\n        latest: [false]\n    steps:\n      - uses: actions/checkout@v2\n      - run: |\n          git config user.name uirouterbot\n          git config user.password ${{ secrets.UIROUTERBOT_PAT }}\n          git remote set-url origin $(git remote get-url origin | sed -e 's/ui-router/uirouterbot/')\n          git fetch --unshallow -p origin\n      - name: Update dependencies\n        id: upgrade\n        uses: ui-router/publish-scripts/actions/upgrade@actions-upgrade-v1.0.3\n        with:\n          excludes: ${{ matrix.excludes }}\n          deptype: ${{ matrix.deptype }}\n          latest: ${{ matrix.latest }}\n      - name: Create Pull Request\n        id: cpr\n        if: ${{ steps.upgrade.outputs.upgrades != '' }}\n        # the following hash is from https://github.com/peter-evans/create-pull-request/releases/tag/v2.7.0\n        uses: peter-evans/create-pull-request@340e629d2f63059fb3e3f15437e92cfbc7acd85b\n        with:\n          token: ${{ secrets.UIROUTERBOT_PAT }}\n          request-to-parent: true\n          branch-suffix: 'random'\n          commit-message: 'chore(package): Update ${{ steps.upgrade.outputs.upgradecount }} ${{ matrix.deptype }} to ${{ steps.upgrade.outputs.upgradestrategy }}'\n          title: 'chore(package): Update ${{ steps.upgrade.outputs.upgradecount }} ${{ matrix.deptype }} to ${{ steps.upgrade.outputs.upgradestrategy }}'\n          body: |\n            chore(package): Update ${{ steps.upgrade.outputs.upgradecount }} ${{ matrix.deptype }} to ${{ steps.upgrade.outputs.upgradestrategy }}\n\n            ```\n            ${{ steps.upgrade.outputs.upgrades }}\n            ```\n\n            Auto-generated by [create-pull-request][1]\n\n            [1]: https://github.com/peter-evans/create-pull-request\n      - name: Apply Merge Label\n        if: ${{ steps.cpr.outputs.pr_number != '' }}\n        uses: actions/github-script@0.9.0\n        with:\n          github-token: ${{ secrets.UIROUTERBOT_PAT }}\n          script: |\n            await github.issues.addLabels({\n              owner: context.repo.owner,\n              repo: context.repo.repo,\n              issue_number: ${{ steps.cpr.outputs.pr_number }},\n              labels: ['ready to squash and merge']\n            });\n"
  },
  {
    "path": ".npmignore",
    "content": "# Any hidden files\n**/.*\n\nnode_modules\nscripts\nsrc\ntest\n_docs\n\nbower.json\nkarma.conf.js\ntsconfig.json\ntsconfig.**.json\nwebpack.config.js\n\n*.iml\n*.ipr\n*.iws\nidea-out\n"
  },
  {
    "path": ".npmrc",
    "content": "scripts-prepend-node-path=auto\n"
  },
  {
    "path": ".prettierignore",
    "content": "package.json\nbower.json\nCHANGELOG.md\ntest/**/angular.js\ntest/**/angular-mocks.js\ntest/**/angular-animate.js\nrelease/**\n"
  },
  {
    "path": ".prettierrc.json",
    "content": "{\n  \"singleQuote\": true,\n  \"trailingComma\": \"es5\",\n  \"printWidth\": 120\n}\n"
  },
  {
    "path": "CHANGELOG.md",
    "content": "## 1.1.2 (2025-12-31)\n[Compare `@uirouter/angularjs` versions 1.1.1 and 1.1.2](https://github.com/angular-ui/ui-router/compare/1.1.1...1.1.2)\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.1.1 to 6.1.2\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.1.1 and 6.1.2](https://github.com/ui-router/core/compare/6.1.1...6.1.2)\n\n### Bug Fixes\n\n* **urlMatcher:** Fix potential ReDoS, thanks to www.HeroDevs.com ([0db52a1](https://github.com/ui-router/core/commit/0db52a1))\n\n## 1.1.1 (2024-07-15)\n[Compare `@uirouter/angularjs` versions 1.1.0 and 1.1.1](https://github.com/angular-ui/ui-router/compare/1.1.0...1.1.1)\n\n### Features\n\n* update uirouter core ([#3859](https://github.com/angular-ui/ui-router/issues/3859)) ([275c595](https://github.com/angular-ui/ui-router/commit/275c595))\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.1.0 to 6.1.1\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.1.0 and 6.1.1](https://github.com/ui-router/core/compare/6.1.0...6.1.1)\n\n### Bug Fixes\n\n* **stateParams:** $inherit is not affected by enumerable prototype custom methods ([#841](https://github.com/ui-router/core/issues/841)) ([9c94c2a](https://github.com/ui-router/core/commit/9c94c2a))\n\n# 1.1.0 (2023-04-16)\n[Compare `@uirouter/angularjs` versions 1.0.30 and 1.1.0](https://github.com/angular-ui/ui-router/compare/1.0.30...1.1.0)\n\n### Features\n\n* **package:** move [@uirouter](https://github.com/uirouter)/core to peerDeps as per other uirouter packages ([#3850](https://github.com/angular-ui/ui-router/issues/3850)) ([6dd057c](https://github.com/angular-ui/ui-router/commit/6dd057c))\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.0.8 to 6.1.0\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.0.8 and 6.1.0](https://github.com/ui-router/core/compare/6.0.8...6.1.0)\n\n### Bug Fixes\n\n* **angular-compiler:** remove index.metadata.json from uirouter core, ([37b5ebe](https://github.com/ui-router/core/commit/37b5ebe))\n* **stateService:** make sure `$state.href` (and by extension `uiSref`) handle `inherit: false` ([#834](https://github.com/ui-router/core/issues/834)) ([12cd951](https://github.com/ui-router/core/commit/12cd951)), closes [/github.com/ui-router/core/pull/834#issuecomment-1379019917](https://github.com//github.com/ui-router/core/pull/834/issues/issuecomment-1379019917) [/github.com/ui-router/core/pull/834#issuecomment-1379195131](https://github.com//github.com/ui-router/core/pull/834/issues/issuecomment-1379195131)\n\n## 1.0.30 (2021-12-01)\n[Compare `@uirouter/angularjs` versions 1.0.29 and 1.0.30](https://github.com/angular-ui/ui-router/compare/1.0.29...1.0.30)\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.0.7 to 6.0.8\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.0.7 and 6.0.8](https://github.com/ui-router/core/compare/6.0.7...6.0.8)\n\n## 1.0.29 (2020-12-21)\n[Compare `@uirouter/angularjs` versions 1.0.28 and 1.0.29](https://github.com/angular-ui/ui-router/compare/1.0.28...1.0.29)\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.0.6 to 6.0.7\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.0.6 and 6.0.7](https://github.com/ui-router/core/compare/6.0.6...6.0.7)\n\n### Bug Fixes\n\n* **array:** Fix decoding of array-type query parameters ([44ebfae](https://github.com/ui-router/core/commit/44ebfae))\n\n- Note: this fix does not affect angularjs\n\n## 1.0.28 (2020-08-08)\n[Compare `@uirouter/angularjs` versions 1.0.27 and 1.0.28](https://github.com/angular-ui/ui-router/compare/1.0.27...1.0.28)\n\n### Bug Fixes\n\n* should not transition states when alt-clicked ([8080adb](https://github.com/angular-ui/ui-router/commit/8080adb))\n\n## 1.0.27 (2020-07-21)\n[Compare `@uirouter/angularjs` versions 1.0.26 and 1.0.27](https://github.com/angular-ui/ui-router/compare/1.0.26...1.0.27)\n\n### Bug Fixes\n\n* make augmented StateRegistry.register overload better match the signature in core ([db4e63f](https://github.com/angular-ui/ui-router/commit/db4e63f))\n\n\n---\n\n### Updated `@uirouter/core` from 6.0.5 to 6.0.6\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.0.5 and 6.0.6](https://github.com/ui-router/core/compare/6.0.5...6.0.6)\n\n### Bug Fixes\n\n* **params:** Bi-directionally en/decode path and search params. ([#618](https://github.com/ui-router/core/issues/618)) ([89e99cd](https://github.com/ui-router/core/commit/89e99cd))\n\n\n## 1.0.26 (2020-04-29)\n[Compare `@uirouter/angularjs` versions 1.0.25 and 1.0.26](https://github.com/angular-ui/ui-router/compare/1.0.25...1.0.26)\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.0.4 to 6.0.5\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.0.4 and 6.0.5](https://github.com/ui-router/core/compare/6.0.4...6.0.5)\n\n### Bug Fixes\n\n* **TargetState:** make isDef check more thorough ([e657cfe](https://github.com/ui-router/core/commit/e657cfe))\n\n\n### Features\n\n* **urlRuleFactory:** Add support for StateDeclarations in UrlRuleFactory.fromState() ([539d33a](https://github.com/ui-router/core/commit/539d33a))\n\n## 1.0.25 (2020-02-04)\n[Compare `@uirouter/angularjs` versions 1.0.24 and 1.0.25](https://github.com/angular-ui/ui-router/compare/1.0.24...1.0.25)\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.0.3 to 6.0.4\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.0.3 and 6.0.4](https://github.com/ui-router/core/compare/6.0.3...6.0.4)\n\n### Bug Fixes\n\n* **safeConsole:** check if document is defined to avoid issues in node environments ([da29d88](https://github.com/ui-router/core/commit/da29d88))\n\n## 1.0.24 (2019-12-30)\n[Compare `@uirouter/angularjs` versions 1.0.23 and 1.0.24](https://github.com/angular-ui/ui-router/compare/1.0.23...1.0.24)\n\n\n---\n\n\n### Updated `@uirouter/core` from 6.0.1 to 6.0.3\n\n\nChangelog for `@uirouter/core`:\n\n\n[Compare `@uirouter/core` versions 6.0.1 and 6.0.3](https://github.com/ui-router/core/compare/6.0.1...6.0.3)\n\n### Bug Fixes\n\n* **hof:** Rewrite curry from scratch ([fc324c6](https://github.com/ui-router/core/commit/fc324c6)), closes [#350](https://github.com/ui-router/core/issues/350)\n* **IE9:** Add safeConsole so IE9 doesn't break ([9c8579d](https://github.com/ui-router/core/commit/9c8579d))\n\n\n### Features\n\n* **stateService:** add transition option 'supercede' so transition can be ignored if one is pending ([6e5a56f](https://github.com/ui-router/core/commit/6e5a56f))\n\n## 1.0.23 (2019-10-02)\n[Compare `@uirouter/angularjs` versions 1.0.22 and 1.0.23](https://github.com/angular-ui/ui-router/compare/1.0.22...1.0.23)\n\n### Bug Fixes\n\n* **stateFilters:** Export each function individually ([978b882](https://github.com/angular-ui/ui-router/commit/978b882))\n* **travis:** Fix travis build ([dc0f58a](https://github.com/angular-ui/ui-router/commit/dc0f58a))\n* **types:** Remove [@types/jquery](https://github.com/types/jquery) from devDependencies, upgrade [@types/angular](https://github.com/types/angular) ([b12bc84](https://github.com/angular-ui/ui-router/commit/b12bc84))\n* **viewDirective:** add check for componentProvider, avoid extra trigger for $onInit (fixing [#3735](https://github.com/angular-ui/ui-router/issues/3735)) ([#3779](https://github.com/angular-ui/ui-router/issues/3779)) ([c3e87ad](https://github.com/angular-ui/ui-router/commit/c3e87ad))\n\n\n---\n\n\n### Updated `@uirouter/core` from 5.0.23 to 6.0.1\n[Compare `@uirouter/core` versions 5.0.23 and 6.0.1](https://github.com/ui-router/core/compare/5.0.23...6.0.1)\n\n### Bug Fixes\n\n* **resolve:** remove unnecessary generics from CustomAsyncPolicy ([#452](https://github.com/ui-router/core/issues/452)) ([61f4ee9](https://github.com/ui-router/core/commit/61f4ee9))\n* **travis:** use service: xvfb instead of launching it manually.  install libgconf debian package ([ac1ef4b](https://github.com/ui-router/core/commit/ac1ef4b))\n\n\n### Features\n\n* **resolve:** Remove RXWAIT async policy in favour of allowing user defined async policy function ([#366](https://github.com/ui-router/core/issues/366)) ([0ad87f6](https://github.com/ui-router/core/commit/0ad87f6))\n\n\n### BREAKING CHANGES\n\n* **resolve:** RXWAIT async policy has been removed, but it never worked in the first place\n\n## 1.0.22 (2019-01-29)\n[Compare `@uirouter/angularjs` versions 1.0.21 and 1.0.22](https://github.com/angular-ui/ui-router/compare/1.0.21...1.0.22)\n\n\n### Updated `@uirouter/core` from 5.0.22 to 5.0.23\n[Compare `@uirouter/core` versions 5.0.22 and 5.0.23](https://github.com/ui-router/core/compare/5.0.22...5.0.23)\n\n### Bug Fixes\n\n* **test_downstream_projects:** don't double build core while testing downstreams ([148b16b](https://github.com/ui-router/core/commit/148b16b))\n* **typescript:** Fix typing of onChange callback in UrlService ([961ed0f](https://github.com/ui-router/core/commit/961ed0f)), closes [#229](https://github.com/ui-router/core/issues/229)\n* **typescript:** Mark `params` as optional in StateService.href ([614bfb4](https://github.com/ui-router/core/commit/614bfb4)), closes [#287](https://github.com/ui-router/core/issues/287)\n* **vanilla:** Fix baseHref parsing with chrome-extension:// urls ([f11be4d](https://github.com/ui-router/core/commit/f11be4d)), closes [#304](https://github.com/ui-router/core/issues/304)\n\n## 1.0.21 (2019-01-10)\n[Compare `@uirouter/angularjs` versions 1.0.20 and 1.0.21](https://github.com/angular-ui/ui-router/compare/1.0.20...1.0.21)\n\n\n### Updated `@uirouter/core` from 5.0.21 to 5.0.22\n[Compare `@uirouter/core` versions 5.0.21 and 5.0.22](https://github.com/ui-router/core/compare/5.0.21...5.0.22)\n\n### Bug Fixes\n\n* **lazyLoad:** StateBuilder should not mutate the state declaration ([1478a3c](https://github.com/ui-router/core/commit/1478a3c)), closes [/github.com/ui-router/core/commit/3cd5a2a#r31260154](https://github.com//github.com/ui-router/core/commit/3cd5a2a/issues/r31260154)\n* **state:** Update URL in response to ignored transition due to redirect ([c64c252](https://github.com/ui-router/core/commit/c64c252))\n\n\n### Features\n\n* **TransitionHook:** Pass in transition to HookMatchCriteria ([#255](https://github.com/ui-router/core/issues/255)) ([926705e](https://github.com/ui-router/core/commit/926705e))\n\n## 1.0.20 (2018-08-11)\n[Compare `@uirouter/angularjs` versions 1.0.19 and 1.0.20](https://github.com/angular-ui/ui-router/compare/1.0.19...1.0.20)\n\n\n### Updated `@uirouter/core` from 5.0.20 to 5.0.21\n[Compare `@uirouter/core` versions 5.0.20 and 5.0.21](https://github.com/ui-router/core/compare/5.0.20...5.0.21)\n\n### Bug Fixes\n\n* **dynamic:** Use 'find' from common.ts instead of Array.prototype.find ([66a3244](https://github.com/ui-router/core/commit/66a3244)), closes [#215](https://github.com/ui-router/core/issues/215)\n* **url:** When using html5Mode and no <base> tag is present, default to '/' ([23742e3](https://github.com/ui-router/core/commit/23742e3)), closes [#223](https://github.com/ui-router/core/issues/223)\n\n## 1.0.19 (2018-07-20)\n[Compare `@uirouter/angularjs` versions 1.0.18 and 1.0.19](https://github.com/angular-ui/ui-router/compare/1.0.18...1.0.19)\n\n### Bug Fixes\n\n* **npm:** Publish to the old angular-ui-router npm package too ([8fc3bb2](https://github.com/angular-ui/ui-router/commit/8fc3bb2))\n* **resolve:** Detect and honor strictDi in angularjs versions 1.3 and 1.4 ([1368c18](https://github.com/angular-ui/ui-router/commit/1368c18)), closes [#3678](https://github.com/angular-ui/ui-router/issues/3678)\n* **state:** When creating absolute hrefs in hashbang mode, include the location.pathname ([cd426e5](https://github.com/angular-ui/ui-router/commit/cd426e5)), closes [#3710](https://github.com/angular-ui/ui-router/issues/3710)\n* **uiview:** Allow uiOnParamsChanged to work with states that have a componentProvider ([fe91bd3](https://github.com/angular-ui/ui-router/commit/fe91bd3)), closes [#3707](https://github.com/angular-ui/ui-router/issues/3707)\n\n\n### Updated `@uirouter/core` from 5.0.19 to 5.0.20\n[Compare `@uirouter/core` versions 5.0.19 and 5.0.20](https://github.com/ui-router/core/compare/5.0.19...5.0.20)\n\n### Bug Fixes\n\n* **params:** When creating an array parameter from a custom type, copy the `raw` property ([b6dd738](https://github.com/ui-router/core/commit/b6dd738)), closes [#178](https://github.com/ui-router/core/issues/178)\n\n\n### Features\n\n* **dynamic:** Support dynamic flag on a state declaration ([3cd5a2a](https://github.com/ui-router/core/commit/3cd5a2a))\n* **transition:** Added transition.paramsChanged() to get added/deleted/changed parameter values for a transition ([10b7fde](https://github.com/ui-router/core/commit/10b7fde))\n* **view:** Add _pluginapi._registeredUIView() to get a ui-view by id ([6533b51](https://github.com/ui-router/core/commit/6533b51))\n\n## 1.0.18 (2018-05-19)\n[Compare `@uirouter/angularjs` versions 1.0.17 and 1.0.18](https://github.com/angular-ui/ui-router/compare/1.0.17...1.0.18)\n\n### Bug Fixes\n\n* **bundles:** Do not run prettier against release/* bundles when publishing to bower ([9b420fa](https://github.com/angular-ui/ui-router/commit/9b420fa))\n\n## 1.0.17 (2018-05-13)\n[Compare `@uirouter/angularjs` versions 1.0.16 and 1.0.17](https://github.com/angular-ui/ui-router/compare/1.0.16...1.0.17)\n\n\n### Updated `@uirouter/core` from 5.0.18 to 5.0.19\n[Compare `@uirouter/core` versions 5.0.18 and 5.0.19](https://github.com/ui-router/core/compare/5.0.18...5.0.19)\n\n### Bug Fixes\n\n* **enums:** Workaround angular compiler export issue https://github.com/angular/angular/issues/23759 ([38d25fa](https://github.com/ui-router/core/commit/38d25fa))\n\n## 1.0.16 (2018-05-03)\n[Compare `@uirouter/angularjs` versions 1.0.15 and 1.0.16](https://github.com/angular-ui/ui-router/compare/1.0.15...1.0.16)\n\n### Bug Fixes\n\n* **docs:** downgrade to [@types](https://github.com/types)/angular[@1](https://github.com/1).6.25 to fix typings error when generating docs ([5850136](https://github.com/angular-ui/ui-router/commit/5850136))\n\n\n### Updated `@uirouter/core` from 5.0.17 to 5.0.18\n[Compare `@uirouter/core` versions 5.0.17 and 5.0.18](https://github.com/ui-router/core/compare/5.0.17...5.0.18)\n\n### Bug Fixes\n\n* **angular:** A hack to force the Angular compiler to import from module index ([d56a2be](https://github.com/ui-router/core/commit/d56a2be))\n* **StateRegistry:** Notify listeners of added states when there are orphans in the state queue ([5a9bac9](https://github.com/ui-router/core/commit/5a9bac9))\n* **transition:** Fix typing of Transition.params() ([ebea30e](https://github.com/ui-router/core/commit/ebea30e))\n* **transition:** Normalize `error()` to always return `Rejection` ([9bcc5db](https://github.com/ui-router/core/commit/9bcc5db))\n\n## 1.0.15 (2018-02-12)\n[Compare `@uirouter/angularjs` versions 1.0.14 and 1.0.15](https://github.com/angular-ui/ui-router/compare/1.0.14...1.0.15)\n\n### Bug Fixes\n\n* **package:** update [@uirouter](https://github.com/uirouter)/core to version 5.0.17 ([1b54264](https://github.com/angular-ui/ui-router/commit/1b54264))\n\n\n### Updated `@uirouter/core` from 5.0.16 to 5.0.17\n[Compare `@uirouter/core` versions 5.0.16 and 5.0.17](https://github.com/ui-router/core/compare/5.0.16...5.0.17)\n\n### Bug Fixes\n\n* **core:** Fix leak of old transitions by mutating pathnode*.resolvables*.data ([0a1f518](https://github.com/ui-router/core/commit/0a1f518))\n\n## 1.0.14 (2018-01-31)\n[Compare `@uirouter/angularjs` versions 1.0.13 and 1.0.14](https://github.com/angular-ui/ui-router/compare/1.0.13...1.0.14)\n\n### Bug Fixes\n\n* **uiSrefActive:** don't match fuzzy on lazy loaded future states ([01430ee](https://github.com/angular-ui/ui-router/commit/01430ee))\n\n\n### Features\n\n* **uiSrefActive:** Support arrays of globs for ng-class style ([b215343](https://github.com/angular-ui/ui-router/commit/b215343))\n\n\n### Updated `@uirouter/core` from 5.0.14 to 5.0.16\n[Compare `@uirouter/core` versions 5.0.14 and 5.0.16](https://github.com/ui-router/core/compare/5.0.14...5.0.16)\n\n### Bug Fixes\n\n* **common:** Fix signature of  for objects (make target optional) ([61d0afc](https://github.com/ui-router/core/commit/61d0afc))\n* **core:** Fix memory leak of resolve data from ALL transitions ever ([7f2aed1](https://github.com/ui-router/core/commit/7f2aed1))\n* **pathNode:** add backwards compat for PathNode.clone(). Add retainedWithToParams to treeChanges interface. ([4833a32](https://github.com/ui-router/core/commit/4833a32))\n\n\n### Features\n\n* **common:** Add map-in-place support to map() ([12bc7d8](https://github.com/ui-router/core/commit/12bc7d8))\n* **common:** Add onEvict() callback registry for queues with max length ([c19d007](https://github.com/ui-router/core/commit/c19d007))\n\n## 1.0.13 (2018-01-10)\n[Compare `@uirouter/angularjs` versions 1.0.12 and 1.0.13](https://github.com/angular-ui/ui-router/compare/1.0.12...1.0.13)\n\n\n### Updated `@uirouter/core` from 5.0.13 to 5.0.14\n[Compare `@uirouter/core` versions 5.0.13 and 5.0.14](https://github.com/ui-router/core/compare/5.0.13...5.0.14)\n\n### Bug Fixes\n\n* **trace:** Fix null reference in uiview name sort function ([59cb067](https://github.com/ui-router/core/commit/59cb067))\n* **treeChanges:** apply toParams to 'retained' path ([#72](https://github.com/ui-router/core/issues/72)) ([cf63d11](https://github.com/ui-router/core/commit/cf63d11))\n\n## 1.0.12 (2017-12-22)\n[Compare `@uirouter/angularjs` versions 1.0.11 and 1.0.12](https://github.com/angular-ui/ui-router/compare/1.0.11...1.0.12)\n\n### Bug Fixes\n\n* **location:** allow empty string param: Ng1LocationServices.url('') ([01bbaf0](https://github.com/angular-ui/ui-router/commit/01bbaf0))\n* **onEnter:** Do not inject child-state data into ng1 onEnter hooks ([cdec6a0](https://github.com/angular-ui/ui-router/commit/cdec6a0))\n* **package:** update [@uirouter](https://github.com/uirouter)/core to version 5.0.13 ([6c63f2d](https://github.com/angular-ui/ui-router/commit/6c63f2d))\n* **travis:** regenerate and encrypt secret ([c718ce5](https://github.com/angular-ui/ui-router/commit/c718ce5))\n\n\n### Updated `@uirouter/core` from 5.0.11 to 5.0.13\n[Compare `@uirouter/core` versions 5.0.11 and 5.0.13](https://github.com/ui-router/core/compare/5.0.11...5.0.13)\n\n### Bug Fixes\n\n* **browserLocation:** Use location.pathname (not href) or '/' when no base tag found ([db461d6](https://github.com/ui-router/core/commit/db461d6))\n* **browserLocationConfig:** If no base href found, use location.href (not empty string) ([0251424](https://github.com/ui-router/core/commit/0251424))\n* **pushStateLocation:** Fix URLs: add slash between base and path when necessary ([bfa5755](https://github.com/ui-router/core/commit/bfa5755))\n* **pushStateLocation:** When url is \"\" or \"/\", use baseHref for pushState ([042a950](https://github.com/ui-router/core/commit/042a950))\n* **resolve:** Add onFinish hook to resolve any dynamicly added resolvables ([7d1ca54](https://github.com/ui-router/core/commit/7d1ca54))\n* **urlRouter:** Update query params when resetting url via .update() ([7664cd0](https://github.com/ui-router/core/commit/7664cd0))\n\n\n### Features\n\n* **view:** Add onSync callback API to plugin API ([9544ae5](https://github.com/ui-router/core/commit/9544ae5))\n\n## 1.0.11 (2017-11-13)\n[Compare `@uirouter/angularjs` versions 1.0.10 and 1.0.11](https://github.com/angular-ui/ui-router/compare/1.0.10...1.0.11)\n\n### Bug Fixes\n\n* **uiView:** Fix cfg.getTemplate is undefined ([f4d99b0](https://github.com/angular-ui/ui-router/commit/f4d99b0))\n\n## 1.0.10 (2017-10-18)\n[Compare `@uirouter/angularjs` versions 1.0.9 and 1.0.10](https://github.com/angular-ui/ui-router/compare/1.0.9...1.0.10)\n\n### Bug Fixes\n\n* **artifactory:** Add trailing newline to package.json to work around artifactory issue  ([#3551](https://github.com/angular-ui/ui-router/issues/3551)) ([d09a345](https://github.com/angular-ui/ui-router/commit/d09a345)), closes [#3550](https://github.com/angular-ui/ui-router/issues/3550)\n\n## 1.0.9 (2017-10-17)\n[Compare `@uirouter/angularjs` versions 1.0.8 and 1.0.9](https://github.com/angular-ui/ui-router/compare/1.0.8...1.0.9)\n\n\n### Updated `@uirouter/core` from 5.0.10 to 5.0.11\n[Compare `@uirouter/core` versions 5.0.10 and 5.0.11](https://github.com/ui-router/core/compare/5.0.10...5.0.11)\n\n### Bug Fixes\n\n* **ie9:** make console.bind work in ie9 ([#85](https://github.com/ui-router/core/issues/85)) ([318214b](https://github.com/ui-router/core/commit/318214b))\n\n## 1.0.8 (2017-10-07)\n[Compare `@uirouter/angularjs` versions 1.0.7 and 1.0.8](https://github.com/angular-ui/ui-router/compare/1.0.7...1.0.8)\n\n\n## 5.0.10 (2017-10-07)\n[Compare `@uirouter/core` versions 5.0.8 and 5.0.10](https://github.com/ui-router/core/compare/5.0.8...5.0.10)\n\n### Bug Fixes\n\n* **angular/cli:** Use package.json fields: 'typings', 'main', 'jsnext:main' ([74143d9](https://github.com/ui-router/core/commit/74143d9))\n* **isomorphic:** Remove use of CustomEvent. Detect root scope (global/window/self) for nodejs, browser, or web-worker. ([2d206ba](https://github.com/ui-router/core/commit/2d206ba))\n* **typings:** Use StateObject for parameter to hook criteria functions ([5b58566](https://github.com/ui-router/core/commit/5b58566))\n\n\n### Features\n\n* **TransitionHook:** Add hook registration option `invokeLimit` to limit the number of times a hook is invoked before being auto-deregistered. ([2cb17ef](https://github.com/ui-router/core/commit/2cb17ef))\n\n\n\n## 1.0.7 (2017-09-30)\n[Compare `@uirouter/angularjs` versions 1.0.6 and 1.0.7](https://github.com/angular-ui/ui-router/compare/1.0.6...1.0.7)\n\n### Bug Fixes\n\n* **typings:** Allow views: { foo: 'string' } in Ng1StateDeclaration ([2f7a3f2](https://github.com/angular-ui/ui-router/commit/2f7a3f2))\n\n### Updated `@uirouter/core` from 5.0.6 to 5.0.8 (2017-09-30)\n[Compare `@uirouter/core` versions 5.0.6 and 5.0.8](https://github.com/ui-router/core/compare/5.0.6...5.0.8)\n\n### Bug Fixes\n\n* **bundle:** Rollup: Do not warn on THIS_IS_UNDEFINED ([a4581b1](https://github.com/ui-router/core/commit/a4581b1))\n* **globals:** Use shallow copy to update the globals.params / $state.params object ([e883afc](https://github.com/ui-router/core/commit/e883afc))\n* **Injector:** When getting tokens from native injector, only throw on undefined (not on falsey values) ([ada9ca2](https://github.com/ui-router/core/commit/ada9ca2))\n* **redirectTo:** Fix typings for redirectTo. Allow a function that returns a target state or a promise for one. ([3904487](https://github.com/ui-router/core/commit/3904487))\n* **trace:** Fall back to console.log if .table is unavailable (IE) ([c8110fc](https://github.com/ui-router/core/commit/c8110fc))\n* **trace:** Support tracing of object-parameters with circular references ([2f1ae9a](https://github.com/ui-router/core/commit/2f1ae9a))\n* **url:** Add CustomEvent polyfill for IE ([a50db21](https://github.com/ui-router/core/commit/a50db21))\n* **vanilla:** fix base path handling for vanilla push state ([ad61d74](https://github.com/ui-router/core/commit/ad61d74))\n* **vanilla:** Use `self` instead of `window` for webworker compat ([a4629ee](https://github.com/ui-router/core/commit/a4629ee))\n\n\n### Features\n\n* **TargetState:** Add builder methods .withState, .withParams, and .withOptions ([6b93142](https://github.com/ui-router/core/commit/6b93142))\n\n\n\n## `@uirouter/angularjs` 1.0.6 (2017-08-12)\n[Compare `@uirouter/angularjs` versions 1.0.5 and 1.0.6](https://github.com/angular-ui/ui-router/compare/1.0.5...1.0.6)\n\n### Bug Fixes\n\n* **sourcemaps:** Embed sources inline into sourcemaps ([4baa430](https://github.com/angular-ui/ui-router/commit/4baa430))\n\n\n\n## Changes in `@uirouter/core` between versions [5.0.5 and 5.0.6](https://github.com/ui-router/core/compare/5.0.5...5.0.6) (2017-08-12)\n\n\n### Bug Fixes\n\n* **sourceMaps:** Embed typescript sources in sourcemaps ([10558a3](https://github.com/ui-router/core/commit/10558a3))\n* **typescript:** Fix strictNullCheck type error ([0ae585e](https://github.com/ui-router/core/commit/0ae585e))\n* **urlRouter:** Fix absolute 'href' generation by using location.hostname (not location.host) ([a28b68a](https://github.com/ui-router/core/commit/a28b68a))\n* **urlService:** Fix priority sorting of URL rules ([73a1fe0](https://github.com/ui-router/core/commit/73a1fe0))\n\n\n\n<a name=\"1.0.5\"></a>\n## [1.0.5](https://github.com/angular-ui/ui-router/compare/1.0.4...1.0.5) (2017-06-29)\n\nUpdated to @uirouter/core 5.0.5 and addressed typescript 2.4 breaking changes\n\n## Changes in `@uirouter/core` between versions [5.0.3 and 5.0.5](https://github.com/ui-router/core/compare/5.0.3...5.0.5) (2017-06-29)\n\n\n### Bug Fixes\n\n* **future:** Allow future states to specify a `parent:` ([828fe1b](https://github.com/ui-router/core/commit/828fe1b))\n* **typescript:** Update to typescript 2.4 ([ce1669b](https://github.com/ui-router/core/commit/ce1669b))\n* **view:** only sync views which are of the same name *and type* ([c48da4a](https://github.com/ui-router/core/commit/c48da4a))\n\n\n### Features\n\n* **invalidTransition:** Better error messaging when param values are invalid ([2a15d1a](https://github.com/ui-router/core/commit/2a15d1a))\n* **trace:** Trace view synchronization. Allow trace.enable(...string) ([284392d](https://github.com/ui-router/core/commit/284392d))\n* **urlMatcher:** add support for multiline urls ([5b11ce0](https://github.com/ui-router/core/commit/5b11ce0))\n\n\n\n<a name=\"1.0.4\"></a>\n## [1.0.4](https://github.com/angular-ui/ui-router/compare/1.0.3...1.0.4) (2017-06-09)\n\n\n### Bug Fixes\n\n* **bundle:** work around rollup bug https://github.com/rollup/rollup/issues/1322 ([befb50a](https://github.com/angular-ui/ui-router/commit/befb50a))\n* **uiSrefActive:** Avoid \"Possibly unhandled rejection\" in console ([5c09e28](https://github.com/angular-ui/ui-router/commit/5c09e28))\n\n\n\n### @uirouter/core changes\n## [5.0.4](https://github.com/ui-router/core/compare/5.0.3...5.0.4) (2017-06-09)\n\n\n### Bug Fixes\n\n* **future:** Allow future states to specify a `parent:` ([828fe1b](https://github.com/ui-router/core/commit/828fe1b))\n* **view:** only sync views which are of the same name *and type* ([c48da4a](https://github.com/ui-router/core/commit/c48da4a))\n\n\n### Features\n\n* **invalidTransition:** Better error messaging when param values are invalid ([2a15d1a](https://github.com/ui-router/core/commit/2a15d1a))\n* **trace:** Trace view synchronization. Allow trace.enable(...string) ([284392d](https://github.com/ui-router/core/commit/284392d))\n\n\n\n<a name=\"1.0.3\"></a>\n## [1.0.3](https://github.com/angular-ui/ui-router/compare/1.0.1...1.0.3) (2017-05-07)\n\n\n### Bug Fixes\n\n* **templateFactory:** Do not prepend x- to attribute names unless necessary. ([e573f06](https://github.com/angular-ui/ui-router/commit/e573f06))\n\n\n### Features\n\n* **build:** Publish non-monolithic @uirouter/angularjs UMD bundle `ui-router-angularjs.js` ([8db3696](https://github.com/angular-ui/ui-router/commit/8db3696))\n  ** Note: this change is necessary to properly support plugins which depend on @uirouter/core\n\n\n\n### @uirouter/core changes\n## [5.0.3](https://github.com/ui-router/core/compare/5.0.1...5.0.3) (2017-05-07)\n\n\n### Bug Fixes\n\n* **common:** Fix implementation of 'pick' -- use hasOwnProperty ([09848a4](https://github.com/ui-router/core/commit/09848a4))\n* **common:** Re-fix implementation of 'pick' using for .. in ([f2da7f4](https://github.com/ui-router/core/commit/f2da7f4))\n\n\n### Features\n\n* **build:** Build and distribute @uirouter/core UMD bundles ([0a8da85](https://github.com/ui-router/core/commit/0a8da85))\n\n\n\n<a name=\"1.0.1\"></a>\n## [1.0.1](https://github.com/angular-ui/ui-router/compare/1.0.0...1.0.1) (2017-05-04)\n\n\n### Bug Fixes\n\n* **routeToComponent:** Do not prefix component element with `x-` unless necessary. ([60b9ef9](https://github.com/angular-ui/ui-router/commit/60b9ef9))\n\n\n<a name=\"1.0.0\"></a>\n# [1.0.0](https://github.com/angular-ui/ui-router/compare/1.0.0-rc.1...1.0.0) (2017-04-30)\n\n\n# NOTICE: The npm package is renamed from `angular-ui-router` to `@uirouter/angularjs`\n\n\n### Bug Fixes\n\n* **noImplicitAny:** move noimplicitany compliance test file to correct location ([ec6e5e4](https://github.com/angular-ui/ui-router/commit/ec6e5e4))\n* **onEnter:** Fix typescript typing for onEnter/onRetain/onExit ([df6ee24](https://github.com/angular-ui/ui-router/commit/df6ee24))\n* **routeToComponent:** Bind resolves that start with data- or x- ([4559c32](https://github.com/angular-ui/ui-router/commit/4559c32))\n* **StateRegistry:** Allow stateRegistry.register() to take a Ng1StateDeclaration ([cc88525](https://github.com/angular-ui/ui-router/commit/cc88525)), closes [#3345](https://github.com/angular-ui/ui-router/issues/3345)\n* **uiCanExit:** Only process uiCanExit hook once during redirects ([7a086ee](https://github.com/angular-ui/ui-router/commit/7a086ee))\n* **uiSref:** replace angular.copy with extend (PR [#3330](https://github.com/angular-ui/ui-router/issues/3330)) ([20d1fcd](https://github.com/angular-ui/ui-router/commit/20d1fcd)), closes [#3189](https://github.com/angular-ui/ui-router/issues/3189)\n* **UrlRouterProvider:** export `UrlRouterProvider` symbol for use with .d.ts typings ([d71bad0](https://github.com/angular-ui/ui-router/commit/d71bad0)), closes [#3296](https://github.com/angular-ui/ui-router/issues/3296)\n* **view:** Allow targeting nested named ui-view by simple ui-view name ([8fe5b1f](https://github.com/angular-ui/ui-router/commit/8fe5b1f))\n* **views:** Allow same views object to be reused in multiple states ([66103fc](https://github.com/angular-ui/ui-router/commit/66103fc)), closes [#3353](https://github.com/angular-ui/ui-router/issues/3353)\n* **views:** Better validation of view declarations (throw when there are state-level and view-level conflicts) ([7573156](https://github.com/angular-ui/ui-router/commit/7573156))\n\n\n### Features\n\n* **uiSref:** Bind ui-sref to other DOM events (PR [#3343](https://github.com/angular-ui/ui-router/issues/3343)) ([193ac2e](https://github.com/angular-ui/ui-router/commit/193ac2e)), closes [#3169](https://github.com/angular-ui/ui-router/issues/3169)\n* **uiSref:** switch custom events prop from `event:` to `events:` ([d3942a6](https://github.com/angular-ui/ui-router/commit/d3942a6))\n\n\nUI-Router for AngularJS version 1.0.0 updates `ui-router-core@3.1.0` to `@uirouter/core@5.0.1`.\nPlease keep reading to see if the breaking changes from core between 3.1.0 and 5.0.1 affect you.\n\n### `@uirouter/core` changes\n# [diff to 3.1.0](https://github.com/ui-router/core/compare/3.1.0...5.0.1) (2017-04-30)\n\n### Bug Fixes\n\n* **BrowserLocationConfig:** fixed protocol + port value ([#38](https://github.com/ui-router/core/issues/38)) ([5559382](https://github.com/ui-router/core/commit/5559382))\n* **lazyLoad:** Allow `lazyLoad` stateBuilder: Get lazyLoad fn from internal State object, not StateDeclaration ([9313880](https://github.com/ui-router/core/commit/9313880))\n* **lazyLoad:** Wait for future state to be replaced before registering lazy children ([4bdce47](https://github.com/ui-router/core/commit/4bdce47))\n* **noImplicitAny:** Fix noimplicitany compliance ([1a6cdfc](https://github.com/ui-router/core/commit/1a6cdfc))\n* **pushStateLocation:** call listeners in url() ([#24](https://github.com/ui-router/core/issues/24)) ([7c90911](https://github.com/ui-router/core/commit/7c90911)), closes [#23](https://github.com/ui-router/core/issues/23)\n* **redirect:** Do not update URL after redirect with { location: false } ([652a760](https://github.com/ui-router/core/commit/652a760))\n* **resolve:** Allow resolve's state context to be injected as `$state$` ([a06948b](https://github.com/ui-router/core/commit/a06948b))\n* **tfs:** Rename $q.ts and $injector.ts files, removing leading dollar signs ([cb653ee](https://github.com/ui-router/core/commit/cb653ee))\n* **trace:** Re-add transitionStart trace ([b019036](https://github.com/ui-router/core/commit/b019036))\n* **transitionHook:** Do not process transition hooks after router has been disposed. ([666c6d7](https://github.com/ui-router/core/commit/666c6d7))\n* **TransitionHook:** Transition hooks no longer expose the internal StateObject ([2b0e48b](https://github.com/ui-router/core/commit/2b0e48b))\n* **typings:** Allow strictNullChecks for HookMatchCriteria ([d92d4d5](https://github.com/ui-router/core/commit/d92d4d5))\n* **ui-sref:** Improve performance of generating hrefs ([c3967bd](https://github.com/ui-router/core/commit/c3967bd))\n* **view:** Do not throw when uiView doesn't have a state context ([f76ee2a](https://github.com/ui-router/core/commit/f76ee2a))\n* **view:** Update views in order of ui-view depth and also by state depth ([46dea2b](https://github.com/ui-router/core/commit/46dea2b))\n\n\n### Features\n\n* **abort:** Add API to manually abort/cancel a transition ([39f8a53](https://github.com/ui-router/core/commit/39f8a53))\n* **common:** Perf improvements in hot functions: ([4193244](https://github.com/ui-router/core/commit/4193244))\n* **core:** Export all vanilla.* code from `ui-router-core` ([f3392d1](https://github.com/ui-router/core/commit/f3392d1))\n* **core:** Switch to [@uirouter](https://github.com/uirouter)/core npm module ([e3f389f](https://github.com/ui-router/core/commit/e3f389f))\n* **decorators:** Add state, resolve and resolve data decorators ([642df0b](https://github.com/ui-router/core/commit/642df0b))\n* **defaultErrorHandler:** Do not invoke default error handler for ABORTED transitions ([b07a24b](https://github.com/ui-router/core/commit/b07a24b))\n* **globals:** Removed `UIRouterGlobals` interface. Renamed `Globals` class to `UIRouterGlobals` ([8719334](https://github.com/ui-router/core/commit/8719334))\n* **Globals:** implement Disposable and delete global transition data ([a794018](https://github.com/ui-router/core/commit/a794018))\n* **onBefore:** Run onBefore hooks asynchronously. ([30b82aa](https://github.com/ui-router/core/commit/30b82aa))\n* **onEnter/Exit/Retain:** Use onExit/onEnter/onRetain from 56955state(), not state.self ([bc1f554](https://github.com/ui-router/core/commit/bc1f554))\n* **Rejection:** Add $id to ease debugging of transition rejections ([d456d54](https://github.com/ui-router/core/commit/d456d54))\n* **State:** Support registration of ES6 state classes (as opposed to object literals) ([3a5d055](https://github.com/ui-router/core/commit/3a5d055))\n* **State:** Switch Internal State Object to prototypally inherit from the State Declaration ([027c995](https://github.com/ui-router/core/commit/027c995)), closes [#34](https://github.com/ui-router/core/issues/34)\n* **StateObject:** Rename internal `State` object to `StateObject` ([feceaf9](https://github.com/ui-router/core/commit/feceaf9))\n* **StateRegistry:** improve perf for: `.register()` and `StateMatcher.find()` misses ([fdb3ab9](https://github.com/ui-router/core/commit/fdb3ab9))\n* **transition:** Ignore duplicate transitions (double clicks) ([bd1bd0b](https://github.com/ui-router/core/commit/bd1bd0b))\n* **transition:** Improve supersede logic: Do not supersede if the new trans is aborted before onStart ([3141a8f](https://github.com/ui-router/core/commit/3141a8f))\n* **transition:** Run hooks synchronously in current stack, when possible ([953e618](https://github.com/ui-router/core/commit/953e618))\n* **Transition:** deprecate `Transition.is()` which was never implemented ([1edff4b](https://github.com/ui-router/core/commit/1edff4b))\n* **Transition:** Normalize all transition errors to a Rejection. ([a7464bb](https://github.com/ui-router/core/commit/a7464bb))\n* **UIRouter:** Add `trace` global to the `UIRouter` object ([48c5af6](https://github.com/ui-router/core/commit/48c5af6))\n* **UrlService:** (`UrlRouter`) improve perf of registering Url Rules and sorting Url Rules ([64fbfff](https://github.com/ui-router/core/commit/64fbfff))\n* **UrlService:** Add `rules.initial(\"/home\")` to config initial state (like otherwise) ([bbe4209](https://github.com/ui-router/core/commit/bbe4209))\n* **View:** Allow targeting views on own state using `viewname@.` (normalizeUIViewTarget) ([7078216](https://github.com/ui-router/core/commit/7078216)), closes [#25](https://github.com/ui-router/core/issues/25)\n\n\n### BREAKING CHANGES\n\n## **TransitionHook:** Transition hooks no longer expose the internal `State` object (now named `StateObject`)\n\n#### Before:\n\n```js\nimport { State } from \"ui-router-core\";\nconst match = { to: (state: State) => state.data.auth };\ntransitionsvc.onEnter(match, (trans: Transition, state: State) => {\n  // state is the internal State object\n  if (state.includes[\"foo\"]) { // internal ui-router API\n    return false;\n  }\n}\n```\n\n#### Now:\n\n```js\nimport { StateDeclaration } from \"ui-router-core\";\nconst match = { to: (state: StateDeclaration) => state.data.auth };\ntransitionsvc.onEnter(match, (trans: Transition, state: StateDeclaration) => {\n  // state === the state object you registered\n  // Access internal ui-router API using $$state()\n  if (state.$$state().includes[\"foo\"]) {\n    return false;\n  }\n}\n```\n\n#### Motivation:\n\nThe `State` object (now named `StateObject`) is an internal API and should not be exposed via any public APIs.\nIf you depend on the internal APIs, you can still access the internal object by calling `state.$$state()`.\n\n#### BC Likelihood\n\nHow likely is this BC to affect me?\n\nMedium: You will likely be affected you 1) have transition hooks, 2) are using typescript and/or 3) use the internal ui-router State API.\n\n#### BC Severity\n\nHow severe is this BC?\n\nLow: Access to the internal api is still available using `$$state()`.\n\n\n## **StateObject:** Renamed internal API `State` object to `StateObject`\n\n#### Before:\n\n```\nimport {State} from \"ui-router-core\";\n```\n\n- #### Now:\n\n```\nimport {StateObject} from \"ui-router-core\";\n```\n\n#### Motivation:\n\nWe'd like to use the `State` name/symbol as a public API.  \nIt will likely be an ES7/TS decorator for ES6/TS state definition classes, i.e:\n\n```js\n@State(\"foo\")\nexport class FooState implements StateDeclaration {\n  url = \"/foo\";\n  component = FooComponent;\n\n  @Resolve({ deps: [FooService] })\n  fooData(fooService) {\n    return fooService.getFoos();\n  }\n}\n```\n\n#### BC Likelihood\n\nHow likely is this to affect me?\n\nLow: This only affects code that imports the internal API symbol `State`.\nYou will likely be affected you 1) import that symbol, 2) are using typescript and 3) explicitly\ntyped a variable such as `let internalStateObject = state.$$state();`\n\n#### BC Severity\n\nHow severe is this change?\n\nLow: Find all places where `State` is imported and rename to `StateObject`\n\n\n## **Transition:** All Transition errors are now wrapped in a Rejection object.\n\n#### Before:\n\nPreviously, if a transition hook returned a rejected promise:\n```js\n.onStart({}, () => Promise.reject('reject transition'));\n```\n\nIn `onError` or `transtion.promise.catch()`, the raw rejection was returned:\n```js\n.onError({}, (trans, err) => err === 'reject transition')\n```\n\n#### Now:\n\nNow, the error is wrapped in a Rejection object.\n\n- The detail (thrown error or rejected value) is still available as `.detail`.\n\n```js\n.onError({}, (trans, err) =>\n    err instanceof Rejection && err.detail === 'reject transition')\n```\n\n- The Rejection object indicates the `.type` of transition rejection (ABORTED, ERROR, SUPERSEDED and/or redirection).\n```js\n.onError({}, (trans, err) => {\n  err.type === RejectType.ABORTED === 3\n});\n```\n\n#### Motivation:\n\nErrors *thrown from* a hook and rejection values *returned from* a hook can now be processed in the same way.\n\n#### BC Likelihood\n\nHow likely is this to affect me?\n\nMedium: apps which have onError handlers for rejected values\n\n#### BC Severity\n\nHow severe is this change?\n\nLow: Find all error handlers (or .catch/.then chains) that do not understand Rejection. Add `err.detail` processing.\n\n\n\n## **onBefore:** `onBefore` hooks are now run asynchronously like all the other hooks.\n\n#### Old behavior\n\nPreviously, the `onBefore` hooks were run in the same stackframe as `transitionTo`.\nIf they threw an error, it could be caught using try/catch.\n\n```js\ntransitionService.onBefore({ to: 'foo' }), () => { throw new Error('doh'); });\ntry {\n  stateService.go('foo');\n} catch (error) {\n  // handle error\n}\n```\n\n#### New behavior\n\nNow, `onBefore` hooks are processed asynchronously.\nTo handle errors, use any of the async error handling paradigms:\n\n- Chain off the promise\n  ```js\n  transitionService.onBefore({ to: 'foo' }), () => { throw new Error('doh'); });\n  stateService.go('foo').catch(error => { //handle error });\n  ```\n- Define an error handler\n  ```js\n  transitionService.onBefore({ to: 'foo' }), () => { throw new Error('doh'); });\n  transitionService.onError({ to: 'foo' }), () => { // handle error });\n  stateService.go('foo');\n  ```\n- Use the global defaultErrorHandler\n  ```js\n  transitionService.onBefore({ to: 'foo' }), () => { throw new Error('doh'); });\n  stateService.go('foo');\n  stateService.defaultErrorHandler(error => { // global error handler });\n  ```\n\n#### Motivation\n\nWhy introduce a BC?\n\n- No subtle behavior differences by hook type\n- Simpler code and mental model\n- Fewer edge cases to account for\n\n#### BC Liklihood\n\nHow likely is this to affect my app?\n\nVery Low: Apps that registered onBefore hooks and depend on\nsynchronous execution are affected.\n\n#### BC Severity\n\nHow severe is this BC?\n\nLow: Switch to asynchronous handling, such as chaining off the\ntransition promise\n\n\n## **defaultErrorHandler:** ABORTED transitions do not invoke the `defaultErrorHandler`\n\nReturning `false` from a transition hook will abort the transition.\n\n#### Old behavior\n\nPreviously, this case was considered an error and was logged by\n`defaultErrorHandler`.\nAfter your feedback, we agree that this is not typically an error.\n\n#### New behavior\n\nNow, aborted transitions do not trigger the `defaultErrorHandler`\n\n#### Motivation:\n\n> Why introduce a BC?\n\nMost users do not consider ABORT to be an error.  The default error\nhandler should match this assumption.\n\n#### BC liklihood\n\n> How likely am I to be affected?\n\nLow: Most users do not consider ABORT to be an error. For most users\nthis will not be a BC.\n\n#### BC severity\n\n> How severe is this BC?\n\nLow: Users who want to handle all transition rejections can\nregister a `.onError` handler and filter/process accordingly.\n\n\n## **globals:** This change will likely only affect a small subset of typescript users and probably only those using `ui-router-ng2`.\n\nIf you're injecting the `Globals` class somewhere, e.g.:\n```\n@Injectable()\nclass MyService {\n  _globals: UIRouterGlobals;\n  constructor(globals: Globals) {\n    this._globals = <UIRouterGlobals> globals;\n  }\n}\n```\nyou should now inject `UIRouterGlobals`, e.g.:\n```\n@Injectable()\nclass MyService {\n  constructor(public globals: UIRouterGlobals) { }\n}\n```\n\nLikewise, if you were casting the `UIRouter.globals` object as a `UIRouterGlobals`, it is no longer necessary:\n\n```js\nfunction myHook(trans: Transition) {\n  let globals: UIRouterGlobals = trans.router.globals; // cast is no longer necessary\n}\n```\n\nCloses https://github.com/ui-router/core/issues/31\n\n\n\n<a name=\"1.0.0-rc.1\"></a>\n# [1.0.0-rc.1](https://github.com/angular-ui/ui-router/compare/1.0.0-beta.3...v1.0.0-rc.1) (2017-01-09)\n\n\n### Bug Fixes\n\n* Post-process .d.ts files to make them compatible with TS 1.8 ([c8162ee](https://github.com/angular-ui/ui-router/commit/c8162ee)), closes [#3070](https://github.com/angular-ui/ui-router/issues/3070)\n* **$stateChangeSuccess:** fire polyfill `$stateChangeSuccess` right after global state are updated ([3984f9b](https://github.com/angular-ui/ui-router/commit/3984f9b)), closes [#3144](https://github.com/angular-ui/ui-router/issues/3144)\n* **$viewContentLoading:** Add $viewContentLoading event back ([c346a28](https://github.com/angular-ui/ui-router/commit/c346a28))\n* **build:** Use global `angular` reference if require('angular') is falsey or empty ([2982613](https://github.com/angular-ui/ui-router/commit/2982613)), closes [#3113](https://github.com/angular-ui/ui-router/issues/3113)\n* **component:** Do not throw err when component has `&` binding ([b5c731d](https://github.com/angular-ui/ui-router/commit/b5c731d)), closes [#3099](https://github.com/angular-ui/ui-router/issues/3099)\n* **Ng1ViewDeclaration:** Make controllerProvider IInjectable ([#3056](https://github.com/angular-ui/ui-router/issues/3056)) ([a3136ae](https://github.com/angular-ui/ui-router/commit/a3136ae)), closes [#3044](https://github.com/angular-ui/ui-router/issues/3044)\n* **ng2.uiSrefActive:** Allow ng-if on nested uiSrefs ([e3051f5](https://github.com/angular-ui/ui-router/commit/e3051f5)), closes [#3046](https://github.com/angular-ui/ui-router/issues/3046)\n* **onExit:** inject resolve values using the \"from path\" ([c91b65a](https://github.com/angular-ui/ui-router/commit/c91b65a))\n* **onExit:** inject the current transition as `$transition$` ([c91b65a](https://github.com/angular-ui/ui-router/commit/c91b65a)), closes [#3081](https://github.com/angular-ui/ui-router/issues/3081)\n* **package:** use engines: node: >=4.0.0 ([6801b0c](https://github.com/angular-ui/ui-router/commit/6801b0c)), closes [#3086](https://github.com/angular-ui/ui-router/issues/3086)\n* **Resolve:** Fix NOWAIT resolve injection into controllers and bindings to components. ([cb57ce9](https://github.com/angular-ui/ui-router/commit/cb57ce9))\n* **typings:** Change Ng1ViewDeclaration.controller type to IInjectable|string ([d2b5d84](https://github.com/angular-ui/ui-router/commit/d2b5d84)), closes [#3089](https://github.com/angular-ui/ui-router/issues/3089)\n* **typings:** Change Ng1ViewDeclaration.controller type to IInjectable|string ([8e91dc9](https://github.com/angular-ui/ui-router/commit/8e91dc9))\n* **ui-sref:** Update `ui-sref/state` href when states are added/removed ([389dfd5](https://github.com/angular-ui/ui-router/commit/389dfd5))\n* **ui-sref:** Update params-only sref when state changes ([3c1bd0e](https://github.com/angular-ui/ui-router/commit/3c1bd0e)), closes [#1031](https://github.com/angular-ui/ui-router/issues/1031) [#2541](https://github.com/angular-ui/ui-router/issues/2541)\n* **ui-sref:** Use either .on or .bind for click handlers ([b00f044](https://github.com/angular-ui/ui-router/commit/b00f044)), closes [#3035](https://github.com/angular-ui/ui-router/issues/3035)\n* **ui-sref-active:** Add CSS class immediately (avoid delay) ([27eb5e9](https://github.com/angular-ui/ui-router/commit/27eb5e9)), closes [#2503](https://github.com/angular-ui/ui-router/issues/2503)\n* **ui-sref-active:** Avoid add/remove class race condition ([126a4ad](https://github.com/angular-ui/ui-router/commit/126a4ad))\n* **ui-sref-active:** Use `$scope.$evalAsync` to apply css class ([6a9d9ae](https://github.com/angular-ui/ui-router/commit/6a9d9ae)), closes [#2503](https://github.com/angular-ui/ui-router/issues/2503) [#1997](https://github.com/angular-ui/ui-router/issues/1997) [#2503](https://github.com/angular-ui/ui-router/issues/2503) [#1997](https://github.com/angular-ui/ui-router/issues/1997)\n* **ui-state:** Process ui-state links relative to where they are created ([cae4dc4](https://github.com/angular-ui/ui-router/commit/cae4dc4))\n* **ui-state:** Support one time bindings in ng 1.3 ([389dfd5](https://github.com/angular-ui/ui-router/commit/389dfd5)), closes [#3131](https://github.com/angular-ui/ui-router/issues/3131) [#3054](https://github.com/angular-ui/ui-router/issues/3054)\n* **uiView:** do not leave initial view scope undestroyed ([#3164](https://github.com/angular-ui/ui-router/issues/3164)) ([37d6f9a](https://github.com/angular-ui/ui-router/commit/37d6f9a)), closes [#1896](https://github.com/angular-ui/ui-router/issues/1896)\n\n\n### Features\n\n* bundle using rollupjs for smaller bundle and faster init times ([a4b5500](https://github.com/angular-ui/ui-router/commit/a4b5500))\n* Deprecate public use of `$urlRouter` and `$urlMatcherFactory` in favor of `$urlService` ([6ee7f21](https://github.com/angular-ui/ui-router/commit/6ee7f21))\n* Move imperative `$resolve` service out of main bundle ([cae6d03](https://github.com/angular-ui/ui-router/commit/cae6d03))\n* remove component.json ([af736c4](https://github.com/angular-ui/ui-router/commit/af736c4))\n* Use angular 1.3+ `$templateRequest` service to fetch templates ([7e1f36e](https://github.com/angular-ui/ui-router/commit/7e1f36e)), closes [#3193](https://github.com/angular-ui/ui-router/issues/3193) [#1882](https://github.com/angular-ui/ui-router/issues/1882)\n* **$uiRouter:** expose router instance at config-time as `$uiRouterProvider.router` ([9d2661c](https://github.com/angular-ui/ui-router/commit/9d2661c))\n* **injectables:** Expose `$uiRouterProvider`, `$uiRouterGlobals`, and `$stateRegistry` injectables ([7fa72a6](https://github.com/angular-ui/ui-router/commit/7fa72a6))\n* **ui-sref-active:** improve performance by reducing $watches ([126a4ad](https://github.com/angular-ui/ui-router/commit/126a4ad))\n* **ui-view:** Route-to-component: Wire component \"&\" bindings ([af95206](https://github.com/angular-ui/ui-router/commit/af95206)), closes [#3239](https://github.com/angular-ui/ui-router/issues/3239) [#3111](https://github.com/angular-ui/ui-router/issues/3111)\n* **UrlService:** Create UrlService API (facade) for easier access to URL based APIs ([6ee7f21](https://github.com/angular-ui/ui-router/commit/6ee7f21))\n* **view:** A view without anything to render defaults to `<ui-view></ui-view>` ([7d28fdd](https://github.com/angular-ui/ui-router/commit/7d28fdd)), closes [#3178](https://github.com/angular-ui/ui-router/issues/3178)\n* **view:** Route a view to a directive using `componentProvider` ([#3165](https://github.com/angular-ui/ui-router/issues/3165)) ([090d2e3](https://github.com/angular-ui/ui-router/commit/090d2e3))\n\n\n### BREAKING CHANGES\n\n# BREAKING CHANGE: Deprecate public use of `$urlRouter` and `$urlMatcherFactory` in favor of `$urlService`\n\nThe `UrlService` combines the commonly used URL APIs in a single place.\nThe service may be injected in a run block as `$urlService`, or in a config block as `$urlServiceProvider`.\n\nThe service object has two nested API objects, `rules` and `config`. An example usage is `$urlService.rules.otherwise('/home')`\n\nThe existing API for `$urlRouter` and `$urlMatcherFactory` will continue to function as before, but are now considered an \"internal API\".\\\nThe new `$urlService` is a facade which delegates to the appropriate internal APIs.\n\n# BREAKING CHANGE: Use angular 1.3+ `$templateRequest` service to fetch templates\n\nWe now fetch templates using `$templateRequest` when it is available (angular 1.3+).\nYou can revert to previous template fetching behavior using `$http` by configuring the ui-router `$templateFactoryProvider`.\n\n```js\n.config(function($templateFactoryProvider) {\n  $templateFactoryProvider.shouldUnsafelyUseHttp(true);\n});\n```\n\nThere are security ramifications to using `$http` to fetch templates.\nRead\n[Impact on loading templates](https://docs.angularjs.org/api/ng/service/$sce#impact-on-loading-templates)\nfor more details\n\n# BREAKING CHANGE: Move imperative `$resolve` service out of main bundle\n\nThe `$resolve` service's `.resolve()` method can be used to perform async dependency injection imperatively.\n\nThe code has been moved out of the main angular-ui-router codebase and is now opt-in.\nFor prebuilt bundle users, add `release/legacy/resolveService.js` to your project.\nFor self-bundlers (e.g., webpack), add `angular-ui-router/lib/legacy/resolveService` as an `import` or `require()`.\n\nIt's unlikely you use this service.\nIts most common usage is with the UI-Bootstrap `$modal` service.\n\n# BREAKING CHANGE: remove component.json\n\n\n\n\n## ui-router-core changes\n\nThis release of angular-ui-router (1.0.0-rc.1) updates ui-router-core to 3.1.0\nThese are the changes in ui-router-core from 1.0.0-beta.3 to 3.1.0\n\n# [3.1.0](https://github.com/ui-router/core/compare/1.0.0-beta.3...3.1.0) (2017-01-09)\n\n\n### Bug Fixes\n\n* **lazyLoad:** Sync by URL after nested lazy load triggered by URL ([1c6220c](https://github.com/ui-router/core/commit/1c6220c))\n* **lazyLoad:** Use UrlService.match() to retry url sync after successful lazy load triggered by url ([8c2461d](https://github.com/ui-router/core/commit/8c2461d)), closes [#19](https://github.com/ui-router/core/issues/19)\n* **Ng1ViewDeclaration:** Make controllerProvider IInjectable ([#3056](https://github.com/ui-router/core/issues/3056)) ([a3136ae](https://github.com/ui-router/core/commit/a3136ae)), closes [#3044](https://github.com/ui-router/core/issues/3044)\n* **ng2.uiSrefActive:** Allow ng-if on nested uiSrefs ([e3051f5](https://github.com/ui-router/core/commit/e3051f5)), closes [#3046](https://github.com/ui-router/core/issues/3046)\n* **onBefore:** Skip remaining hooks after the ([#2](https://github.com/ui-router/core/issues/2)) ([8a45d04](https://github.com/ui-router/core/commit/8a45d04))\n* **param:** `params: { foo: { raw: true } }` overrides `ParamType.raw` ([aefeabf](https://github.com/ui-router/core/commit/aefeabf))\n* **Param:** Mark all query parameters as optional ([7334d98](https://github.com/ui-router/core/commit/7334d98))\n* **params:** Check for null in `int` param type `is()` check ([aa551e4](https://github.com/ui-router/core/commit/aa551e4)), closes [#3197](https://github.com/ui-router/core/issues/3197)\n* **redirect:** Do not allow `onBefore` hooks to cause infinite redirect loops ([5c5f7eb](https://github.com/ui-router/core/commit/5c5f7eb)), closes [#6](https://github.com/ui-router/core/issues/6)\n* **redirectTo:** Do not puke when redirectTo returns undefined ([bde9c0f](https://github.com/ui-router/core/commit/bde9c0f))\n* **redirectTo:** fix TS type signature of `redirectTo` ([2c059c4](https://github.com/ui-router/core/commit/2c059c4))\n* **StateQueueManager:** Compare parsed url parameters using typed parameters ([beca1f5](https://github.com/ui-router/core/commit/beca1f5))\n* **StateRegistry:** Fix error message: State '' is already defined ([f5bd96b](https://github.com/ui-router/core/commit/f5bd96b))\n* **StateService:** Compare typed parameters in .is() and .includes() ([b1a5155](https://github.com/ui-router/core/commit/b1a5155))\n* **TargetState:** Narrow `name()` return type to `String` ([a02f4a7](https://github.com/ui-router/core/commit/a02f4a7))\n* **Transition:** Use { location: replace } when redirecting a transtition in response to a URL sync ([23e2b78](https://github.com/ui-router/core/commit/23e2b78))\n* **typescript:** Emit TS 1.8 compatible .d.ts files ([65badf4](https://github.com/ui-router/core/commit/65badf4))\n* **typings:** Allow urlRouter.rule to return void ([0b78bdf](https://github.com/ui-router/core/commit/0b78bdf))\n* **ui-sref:** Use either .on or .bind for click handlers ([b00f044](https://github.com/ui-router/core/commit/b00f044)), closes [#3035](https://github.com/ui-router/core/issues/3035)\n* **UrlRouter:** Use { location: 'replace' } whenever a url redirect happens ([6cf9b8f](https://github.com/ui-router/core/commit/6cf9b8f))\n* **UrlService:** Wire urlMatcherFactory and urlRouter functions ([a7b58d6](https://github.com/ui-router/core/commit/a7b58d6))\n* **vanilla:** vanilla locations: do not parse \"empty string\" query key parameter ([f949480](https://github.com/ui-router/core/commit/f949480))\n* **view:** Load view prerequisites in `onFinish` ([cc85e76](https://github.com/ui-router/core/commit/cc85e76))\n* **view.load:** Allow view.load to return synchronously ([8619cf9](https://github.com/ui-router/core/commit/8619cf9))\n\n\n### Features\n\n* (CoreServices) Move `location` and `locationConfig` from `services` to `UIRouter.locationService` and `UIRouter.locationConfig`. ([029fb00](https://github.com/ui-router/core/commit/029fb00))\n* Built-in `string` parameter type no longer encodes slashes as `~2F` nor tildes as `~~` ([72bb2d8](https://github.com/ui-router/core/commit/72bb2d8))\n* Create router.dispose() to dispose a router instance and resources. ([0690917](https://github.com/ui-router/core/commit/0690917))\n* Hook errors are all normalized to a \"Rejection\" type.  To access the  detail of the error thrown (`throw \"Error 123\"`), use `.detail`, i.e.: ([f486ced](https://github.com/ui-router/core/commit/f486ced))\n* Move `html5Mode` and `hashPrefix` from `LocationServices` to `LocationConfig` interface ([9d316a7](https://github.com/ui-router/core/commit/9d316a7))\n* move `ViewService.viewConfigFactory` and `rootContext`  to `_pluginapi.*` ([65badf4](https://github.com/ui-router/core/commit/65badf4))\n* Move html5Mode and hashPrefix to LocationServices from LocationConfig ([f7ac2bb](https://github.com/ui-router/core/commit/f7ac2bb))\n* Order URL Matching Rules by priority, not registration order ([eb2f5d7](https://github.com/ui-router/core/commit/eb2f5d7))\n* Path/Query parameters no longer default to `string` param type ([72bb2d8](https://github.com/ui-router/core/commit/72bb2d8))\n* Previously, a state with a `lazyLoad` function was considered a future state. ([ec50da4](https://github.com/ui-router/core/commit/ec50da4))\n* Remove `getResolveValue` and `getResolvable`  methods from `Transition` in favor of `injector().get()` and `injector().getAsync()` ([111d259](https://github.com/ui-router/core/commit/111d259))\n* Replace `LocationServices.setUrl` with `LocationServices.url` ([4c39dcb](https://github.com/ui-router/core/commit/4c39dcb))\n* Replace UrlRouterProvider/UrlRouter with just UrlRouter ([fddd1e2](https://github.com/ui-router/core/commit/fddd1e2))\n* **assertMap:** Add a [].map() helper that asserts that each element is truthy ([f044f53](https://github.com/ui-router/core/commit/f044f53))\n* **futureState:** States with a `.**` name suffix (i.e., `foo.**`) are considered future states ([ec50da4](https://github.com/ui-router/core/commit/ec50da4))\n* **hash:** Change the hash parameter type (`'#'`) to `inherit: false` so it is cleared out when another transition occurs. ([849f84f](https://github.com/ui-router/core/commit/849f84f)), closes [#3245](https://github.com/ui-router/core/issues/3245) [#3218](https://github.com/ui-router/core/issues/3218) [#3017](https://github.com/ui-router/core/issues/3017)\n* **HookBuilder:** Allow custom hook types (to be defined by a plugin) ([3f146e6](https://github.com/ui-router/core/commit/3f146e6))\n* **lazyLoad:** Created `StateService.lazyLoad` method to imperatively lazy load a state ([ec50da4](https://github.com/ui-router/core/commit/ec50da4)), closes [#8](https://github.com/ui-router/core/issues/8)\n* **lazyLoad:** Exported/exposed the `lazyLoadState` function ([ec50da4](https://github.com/ui-router/core/commit/ec50da4))\n* **lazyLoad:** the `lazyLoad` hook can be used to lazy load anything (component code, etc) ([ec50da4](https://github.com/ui-router/core/commit/ec50da4)), closes [#4](https://github.com/ui-router/core/issues/4)\n* **LocationServices:** Add a `parts()` method which returns the URL parts as an object ([32e64f0](https://github.com/ui-router/core/commit/32e64f0))\n* **onCreate:** Add onCreate transition hook ([f486ced](https://github.com/ui-router/core/commit/f486ced))\n* **params:** Add `path` and `query` param types ([72bb2d8](https://github.com/ui-router/core/commit/72bb2d8))\n* **params:** add option to use generic type for Transition.params ([#17](https://github.com/ui-router/core/issues/17)) ([eb12ec8](https://github.com/ui-router/core/commit/eb12ec8)), closes [#16](https://github.com/ui-router/core/issues/16)\n* **Params:** Allow `inherit: false` specified per parameter or type ([849f84f](https://github.com/ui-router/core/commit/849f84f))\n* **plugin:** Allow all plugins to be gotted. ([e324973](https://github.com/ui-router/core/commit/e324973))\n* **plugin:** Allow registration by ES6 class, JS constructor fn, JS factory fn ([b9f4541](https://github.com/ui-router/core/commit/b9f4541))\n* **plugin:** Create plugin API ([36a5215](https://github.com/ui-router/core/commit/36a5215)), closes [#7](https://github.com/ui-router/core/issues/7)\n* **Resolve:** implement NOWAIT policy: Do not wait for resolves before completing a transition. ([05d4c73](https://github.com/ui-router/core/commit/05d4c73)), closes [#3243](https://github.com/ui-router/core/issues/3243) [#2691](https://github.com/ui-router/core/issues/2691)\n* **State:** add .parameters() option for filtering to matching keys ([beca1f5](https://github.com/ui-router/core/commit/beca1f5))\n* **transition:** Allow plugins to define own transition events like `onEnter` ([0dc2c19](https://github.com/ui-router/core/commit/0dc2c19))\n* **transition:** Create ([2673406](https://github.com/ui-router/core/commit/2673406))\n* **Transition:** Add Transition.originalTransition() to return the initial transition in a chain of redirects ([4fe39e3](https://github.com/ui-router/core/commit/4fe39e3))\n* **Transition:** Allow `injector()` to retrieve resolves for the exiting states/path ([df502e8](https://github.com/ui-router/core/commit/df502e8))\n* **Transition:** Allow a plain object `ResolvableLiteral` in `Transition.addResolvable` ([ad9ae81](https://github.com/ui-router/core/commit/ad9ae81))\n* **Transition:** Make Transition.params() immutable to avoid confusion about mutability ([0162212](https://github.com/ui-router/core/commit/0162212))\n* **Transition:** Support treechange paths in API for Resolve+transition ([beedc82](https://github.com/ui-router/core/commit/beedc82))\n* **UrlMatcher:** Add comparison function by UrlMatcher specificity ([eb2f5d7](https://github.com/ui-router/core/commit/eb2f5d7))\n* **UrlRouter:** sort url rules by specificity, not by registration order. ([eb2f5d7](https://github.com/ui-router/core/commit/eb2f5d7))\n* **UrlService:** allow eager or lazy binding of location objects during construction ([7e0a8af](https://github.com/ui-router/core/commit/7e0a8af))\n* **UrlServices:** Add `match()`: given a URL, return the best matching Url Rule ([32e64f0](https://github.com/ui-router/core/commit/32e64f0))\n* **vanilla:** Implement in-memory-only location api ([f64aace](https://github.com/ui-router/core/commit/f64aace))\n\n\n### BREAKING CHANGES\n\n# BREAKING CHANGE: Remove `getResolveValue` and `getResolvable`  methods from `Transition` in favor of `injector().get()` and `injector().getAsync()`\n\nIn beta.3, the Transition APIs: `injector()`, `getResolvable`, and `getResolveValue` duplicated functionality.\n\nInstead of:\n```js\ntrans.getResolveValue('myResolve');\n```\nuse:\n```js\ntrans.injector().get('myResolve')\n```\n# BREAKING CHANGE: Hook errors are all normalized to a \"Rejection\" type.  To access the  detail of the error thrown (`throw \"Error 123\"`), use `.detail`, i.e.:\n### Before\n```js\n$state.go('foo').catch(err => { if (err === \"Error 123\") .. });\n```\n### New way\n```js\n$state.go('foo').catch(err => { if (err.detail === \"Error 123\") .. });\n```\n# BREAKING CHANGE: Replace `LocationServices.setUrl` with `LocationServices.url`\n\nThis makes `url()` a getter/setter.  It also adds the optional `state` parameter to pass through to the browser history when using pushstate.\nEnd users should not notice this change, but plugin authors may.\n# BREAKING CHANGE: Replace UrlRouterProvider/UrlRouter with just UrlRouter\n\nThe configuration functions from the provider object have been integrated into the normal UrlRouter object.\nThe `UIRouter` object no longer has a `uriRouterProvider`, but the equivalent functions can be found on `uiRouter`\n\nOne difference between the old functions on `urlRouterProvider` and the new ones on `uriRouter` is that new functions do not accept injectable functions.\n# BREAKING CHANGE: Built-in `string` parameter type no longer encodes slashes as `~2F` nor tildes as `~~`\n\nPreviously, the `string` parameter type pre-encoded tilde chars (`~`) as two tilde chars (`~~`) and slashes (`/`) as `~2F`.\n\nNow, the `string` parameter type does not pre-encode slashes nor tildes.\nIf you rely on the previous encoding, create a custom parameter type that implements the behavior:\n\n```js\nurlMatcherFactory.type('tildes', {\n  encode: (val: any) =>\n      val != null ? val.toString().replace(/(~|\\/)/g, m => ({ '~': '~~', '/': '~2F' }[m])) : val;\n  decode: (val: string) =>\n      val != null ? val.toString().replace(/(~~|~2F)/g, m => ({ '~~': '~', '~2F': '/' }[m])) : val;\n  pattern: /[^/]*/\n});\n```\n# BREAKING CHANGE: Path/Query parameters no longer default to `string` param type\n\nPreviously, if a url parameter's type  was not specified (in either the path or query), it defaulted to the `string` type.\n\nNow, path parameters default to the new `path` type and query parameters default to the new `query` type.\n\n**In Angular 1 only**, the new `path` parameter type retains the old behavior of pre-encoding `~` to `~~` and `/` to `~2F`\n# BREAKING CHANGE: Order URL Matching Rules by priority, not registration order\n\nURL Rules can come from registered states' `.url`s, calling `.when()`, or calling `.rule()`.\nIt's possible that two or more URL Rules could match the URL.\n\n### Previously\n\nPreviously, url rules were matched in the order in which they were registered.\nThe rule which was registered first would handle the URL change.\n\n### Now\n\nNow, the URL rules are sorted according to a sort function.\nMore specific rules are preferred over less specific rules\n\n### Why\n\nIt's possible to have multiple url rules that match a given URL.\nConsider the following states:\n\n - `{ name: 'books', url: '/books/index' }''`\n - `{ name: 'book', url: '/books/:bookId' }''`\n\nBoth states match when the url is `/books/index`.\nAdditionally, you might have some custom url rewrite rules such as:\n\n `.when('/books/list', '/books/index')`.\n\nThe `book` state also matches when the rewrite rule is matched.\n\nPreviously, we simply used the first rule that matched.  However, now that lazy loading is officially supported, it can be difficult for developers to ensure the rules are registered in the right order.\n\nInstead, we now prioritize url rules by how specific they are.  More specific rules are matched earlier than less specific rules.\nWe split the path on `/`.  A static segment (such as `index` in the example) is more specific than a parameter (such as`:bookId`).\n\n### More Details\n\nThe built-in rule sorting function (see `UrlRouter.defaultRuleSortFn`) sorts rules in this order:\n\n- Explicit priority: `.when('/foo', '/bar', { priority: 1 })` (default priority is 0)\n- Rule Type:\n  - UrlMatchers first (registered states and `.when(string, ...)`)\n  - then regular Expressions (`.when(regexp, ...)`)\n  - finally, everything else (`.rule()`)\n- UrlMatcher specificity: static path segments are more specific than variables (see `UrlMatcher.compare`)\n- Registration order (except for UrlMatcher based rules)\n\nFor complete control, a custom sort function can be registered with `UrlService.rules.sort(sortFn)`\n\n### Query params\n\nBecause query parameters are optional, they are not considered during sorting.\nFor example, both these rules will match when the url is `'/foo/bar'`:\n\n```\n.when('/foo/bar', doSomething);\n.when('/foo/bar?queryparam', doSomethingElse);\n```\n\nTo choose the most specific rule, we match both rules, then choose the rule with the \"best ratio\" of matched optional parameters (see `UrlRuleFactory.fromUrlMatcher`)\n\nThis allows child states to be defined with only query params for a URL.\nThe state only activates when the query parameter is present.\n\n```\n.state('parent', { url: '/parent' });\n.state('parent.child', { url: '?queryParam' });\n```\n\n## Restoring the previous behavior\n\nFor backwards compatibility, register a sort function which sorts by the registration order:\n\n```js\nmyApp.config(function ($urlServiceProvider) {\n\n  function sortByRegistrationOrder(a, b) {\n   return a.$id - b.$id;\n  }\n\n  $urlServiceProvider.rules.sort(sortByRegistrationOrder);\n\n});\n```\n# BREAKING CHANGE: Move `html5Mode` and `hashPrefix` from `LocationServices` to `LocationConfig` interface\n\n### End users should not notice\n\n# BREAKING CHANGE: move `ViewService.viewConfigFactory` and `rootContext`  to `_pluginapi.*`\nThis BC happened in commit 6c42285\n\n# BREAKING CHANGE: Move html5Mode and hashPrefix to LocationServices from LocationConfig\n\n# BREAKING CHANGE: Previously, a state with a `lazyLoad` function was considered a future state.\nNow, a state whose name ends with `.**` (i.e., a glob pattern which matches all children) is a future state.\n\n### All future states should be given a name that ends in `.**`.\n\nChange your future states from:\n```\n{ name: 'future', url: '/future', lazyLoad: () => ... }\n```\nto:\n```\n{ name: 'future.**', url: '/future', lazyLoad: () => ... }\n```\n# BREAKING CHANGE: (CoreServices) Move `location` and `locationConfig` from `services` to `UIRouter.locationService` and `UIRouter.locationConfig`.\n\nThe core `services` object is a mutable object which each framework was monkey patching.\nThis change removes the requirement to monkey patch a global mutable object.\nInstead, framework implementors should pass the `LocationServices` and `LocationConfig` implementations into the `UIRouter` constructor.\n\n### End Users\n\nEnd users who were accessing `services.location` or `services.locationConfig` should access these off the `UIRouter` instance instead.\n\n\n\n\n\n<a name=\"1.0.0-beta.3\"></a>\n# [1.0.0-beta.3 commits](https://github.com/angular-ui/ui-router/compare/1.0.0-beta.2...1.0.0-beta.3) (2016-09-23)\n\n[Read more on the blog](https://ui-router.github.io/blog/uirouter-1.0.0-beta.3/)\n\nThis release adds Angular 2.0.0 final support.\nIt changes the NgModule mechanism to use `UIRouterModule.forRoot()` and `UIRouterModule.forChild()`.\nSee the blog and the breaking changes section.\n\n### Bug Fixes\n\nThis release fixes bugs for both ng1 and ng2\n\n* **common:** Remove `url()` from LocationService interface ([#2990](https://github.com/angular-ui/ui-router/issues/2990)) ([d6c2580](https://github.com/angular-ui/ui-router/commit/d6c2580))\n* **lazyLoad:** Always delete the lazy load promise after it settles. ([dd2f101](https://github.com/angular-ui/ui-router/commit/dd2f101))\n* **ng1.StateProvider:** Export StateProvider class so type can be used ([167770d](https://github.com/angular-ui/ui-router/commit/167770d))\n* **ng1.uiView:** Remove deprecated jquery functions bind/unbind in favor of on/off ([60ebd44](https://github.com/angular-ui/ui-router/commit/60ebd44))\n* **ng2:** Angular 2.0.0 final compatibility ([7c54b75](https://github.com/angular-ui/ui-router/commit/7c54b75)), closes [#2991](https://github.com/angular-ui/ui-router/issues/2991)\n* **ng2.NgModule:** Allow apps with no forChild modules ([d3bd332](https://github.com/angular-ui/ui-router/commit/d3bd332)), closes [#3009](https://github.com/angular-ui/ui-router/issues/3009)\n* **ng2.uiView:** Use ReflectorReader to get component inputs\n* **resolve:** Don't re-resolve data when redirected to same state, but only dynamic params changed. ([98cd2d2](https://github.com/angular-ui/ui-router/commit/98cd2d2)), closes [#3033](https://github.com/angular-ui/ui-router/issues/3033)\n* **trace:** Show function definition during logging of trace.enable('HOOK') ([190d122](https://github.com/angular-ui/ui-router/commit/190d122))\n* **transition:** Fail a transition if a new one has started while resolves are loading ([bc87d9e](https://github.com/angular-ui/ui-router/commit/bc87d9e)), closes [#2972](https://github.com/angular-ui/ui-router/issues/2972)\n* **urlMatcherFactory:** fix tilde edge case with \"string\" encoding ([#3018](https://github.com/angular-ui/ui-router/issues/3018)) ([a201906](https://github.com/angular-ui/ui-router/commit/a201906))\n* **viewService:** Allow root ui-view to be wrapped in ng-if ([32f718a](https://github.com/angular-ui/ui-router/commit/32f718a)), closes [#3004](https://github.com/angular-ui/ui-router/issues/3004)\n\n### Features\n\n* **StateBuilder:** Calculate parent state name when ends in two wildcards `**` ([b4621f3](https://github.com/angular-ui/ui-router/commit/b4621f3))\n\n\n### BREAKING CHANGES\n\n#### BC in Core\n* Remove `UIInjector.native` infavor of `UIInjector.getNative()` ([d11b7dc](https://github.com/angular-ui/ui-router/commit/d11b7dc))\n* Remove `stateProvider` from ui-router-core. Use `stateRegistry` and `stateService` in 88c6494\n* We now enforce states with an explicit `parent:` may NOT ALSO specify a parent state in their name (i.e., `parent.child`)\n\n#### BC in Angular 2\n\nMajor breaking changes for Angular 2 bootstrap between beta.2 and beta.3\n\n- Removed `@UIRouterModule` decorator.\n- Added `UIRouterModule.forRoot()` and `UIRouterModule.forChild()` factory methods\n- See https://ui-router.github.io/docs/latest/classes/ng2.uiroutermodule.html\n\n@NgModule({\n  imports: [\n    UIRouterModule.forRoot({\n      states: INITIAL_STATES,\n      useHash: true,\n      configClass: MyUIRouterConfig\n    }),\n    BrowserModule,\n    FeatureModule,\n  ],\n  declarations: INITIAL_COMPONENTS\n})\nclass RootAppModule {}\n\n@NgModule({\n  imports: [\n    UIRouterModule.forChild({\n      states: FEATURE_STATES,\n      configClass: FeatureConfig\n    }),\n    CommonModule,\n  ],\n  declarations: FEATURE_COMPONENTS\n})\n\n\n<a name=\"1.0.0-beta.2\"></a>\n# [1.0.0-beta.2 commits](https://github.com/angular-ui/ui-router/compare/1.0.0-beta.1...1.0.0-beta.2) (2016-09-09)\n\n[Read more on the blog](https://ui-router.github.io/blog/uirouter-1.0.0-beta.2/)\n\n### Features\n\n#### Core\n\n* **lazyLoad:** Add state.lazyLoad hook to lazy load a tree of states ([bef5257](https://github.com/angular-ui/ui-router/commit/bef5257)) ([8ecb6c6](https://github.com/angular-ui/ui-router/commit/8ecb6c6)), closes [#146](https://github.com/angular-ui/ui-router/issues/146) [#2739](https://github.com/angular-ui/ui-router/issues/2739)\n* **StateRegistry:** Add `deregister` method. ([44579ec](https://github.com/angular-ui/ui-router/commit/44579ec)), closes [#1095](https://github.com/angular-ui/ui-router/issues/1095) [#2711](https://github.com/angular-ui/ui-router/issues/2711)\n* **redirectTo:** Process `redirectTo` property of a state as a redirect string/object/hook function ([6becb12](https://github.com/angular-ui/ui-router/commit/6becb12)), closes [#27](https://github.com/angular-ui/ui-router/issues/27) [#948](https://github.com/angular-ui/ui-router/issues/948)\n* **redirect:** Error after 20+ redirected transitions ([88052bf](https://github.com/angular-ui/ui-router/commit/88052bf))\n* **rejectFactory:** separate transition aborted and transition errored reject types ([55995fd](https://github.com/angular-ui/ui-router/commit/55995fd))\n* **Resolve:** support ng2-like provide object literals ([a7e5ea6](https://github.com/angular-ui/ui-router/commit/a7e5ea6))\n* **Resolve:** Switch state.resolve to be an array of Resolvables ([6743a60](https://github.com/angular-ui/ui-router/commit/6743a60))\n* **Transition:** Add the transition source (url/sref) to TransitionOptions ([5d42d79](https://github.com/angular-ui/ui-router/commit/5d42d79))\n* **Transition:** Added `getResolvable(token)` method ([3aee2b7](https://github.com/angular-ui/ui-router/commit/3aee2b7))\n* **Transition:** expose the current `UiRouter` object as a public property ([52f1308](https://github.com/angular-ui/ui-router/commit/52f1308))\n* **Transition:** expose the transition rejection reason as `Transition.error()` ([7a9e383](https://github.com/angular-ui/ui-router/commit/7a9e383)), closes [#2866](https://github.com/angular-ui/ui-router/issues/2866)\n* **Transition:** Expose the transition's TargetState as targetState() ([f06f6b6](https://github.com/angular-ui/ui-router/commit/f06f6b6))\n* **urlRouter:** Allow a rule to be deleted. ([55f3d3d](https://github.com/angular-ui/ui-router/commit/55f3d3d))\n\n#### ng2\n* **ng2.rx:** Added RxJS Observables for transitions and states: ([2a2f381](https://github.com/angular-ui/ui-router/commit/2a2f381))\n* **ng2:** Add [@UIRouterModule](https://github.com/UIRouterModule) decorator ([e7bedc2](https://github.com/angular-ui/ui-router/commit/e7bedc2)), closes [#2922](https://github.com/angular-ui/ui-router/issues/2922)\n* **ng2:** Improve ng2 bootstrap flexibility with provideUIRouter() provider factory function ([bc17066](https://github.com/angular-ui/ui-router/commit/bc17066)), closes [#2958](https://github.com/angular-ui/ui-router/issues/2958)\n* **ng2.UrlRouter:** Implement { location: replace } ([b8c6146](https://github.com/angular-ui/ui-router/commit/b8c6146)), closes [#2850](https://github.com/angular-ui/ui-router/issues/2850)\n* **ng2.NgModule:** Add module's states to DI using UIROUTER_STATES_TOKEN ([0cb628e](https://github.com/angular-ui/ui-router/commit/0cb628e))\n* **ng2.stateRegistry:** Automatically register states defined on a UIRouterModule ([58a3c84](https://github.com/angular-ui/ui-router/commit/58a3c84))\n* **ng2.UIView:** Use merged NgModule/ParentComp to inject routed component ([37241e7](https://github.com/angular-ui/ui-router/commit/37241e7))\n* **ng2.upgrade:** Enable ng1-to-ng2 ([0bf4eb4](https://github.com/angular-ui/ui-router/commit/0bf4eb4))\n* **uiView:** Support Components loaded via AppModule ([696148f](https://github.com/angular-ui/ui-router/commit/696148f))\n\n\n### Bug Fixes\n\n#### Core\n\n* **defaultErrorHandler:** Invoke handler when a transition is Canceled. ([4fcccd8](https://github.com/angular-ui/ui-router/commit/4fcccd8)), closes [#2924](https://github.com/angular-ui/ui-router/issues/2924)\n* **defaultErrorHandler:** log Error and Error.stack by default ([e102a85](https://github.com/angular-ui/ui-router/commit/e102a85))\n* **defaultErrorHandler:** Reduce console.error noise when redirected ([8c0344f](https://github.com/angular-ui/ui-router/commit/8c0344f))\n* **common:** Add concrete import to interface.ts to fix unit tests ([2d16740](https://github.com/angular-ui/ui-router/commit/2d16740))\n* **redirect:** fix bug where redirected transitions with reload: true got wrong resolve values copied ([bd0e3a3](https://github.com/angular-ui/ui-router/commit/bd0e3a3))\n* **redirectTo:** fix redirectTo definition (interface) ([eff7195](https://github.com/angular-ui/ui-router/commit/eff7195)), closes [#2871](https://github.com/angular-ui/ui-router/issues/2871)\n* **Rejection:** Silence \"Error: Uncaught (in Exception)\" ([38432f4](https://github.com/angular-ui/ui-router/commit/38432f4)), closes [#2676](https://github.com/angular-ui/ui-router/issues/2676)\n* **Resolve:** prevent RXWAIT from waiting for the observable to complete ([a02caf3](https://github.com/angular-ui/ui-router/commit/a02caf3))\n* **ResolvePolicy:** Fix resolve policy config loading ([4440811](https://github.com/angular-ui/ui-router/commit/4440811)), closes [#2945](https://github.com/angular-ui/ui-router/issues/2945)\n* **stateService:** change reloadState parameter in reload function is optional ([#2973](https://github.com/angular-ui/ui-router/issues/2973)) ([839dc4a](https://github.com/angular-ui/ui-router/commit/839dc4a))\n* **StateService:** remove jQuery deprecated feature ([fa40acc](https://github.com/angular-ui/ui-router/commit/fa40acc))\n* **trace:** make TRANSITION trace less noisy when a transition is redirected ([a65c58f](https://github.com/angular-ui/ui-router/commit/a65c58f))\n* **Trace:** Fix error in console after $trace.enable() ([013c77a](https://github.com/angular-ui/ui-router/commit/013c77a)), closes [#2752](https://github.com/angular-ui/ui-router/issues/2752)\n* **transitionHook:** Prevent queued hookFn to be called if deregistered ([#2939](https://github.com/angular-ui/ui-router/issues/2939)) ([39e1ba7](https://github.com/angular-ui/ui-router/commit/39e1ba7)), closes [#2928](https://github.com/angular-ui/ui-router/issues/2928)\n* **typescript:** Make UI-Router `noImplicitAny` safe. ([0769bc2](https://github.com/angular-ui/ui-router/commit/0769bc2)), closes [#2693](https://github.com/angular-ui/ui-router/issues/2693)\n* **typescript:** Remove angular1 specific types from ui-router-core methods ([30124bd](https://github.com/angular-ui/ui-router/commit/30124bd)), closes [#2693](https://github.com/angular-ui/ui-router/issues/2693)\n\n\n#### ng1\n\n* **ng1.stateService:** Coerce 'null' `params` value to empty object ([f674151](https://github.com/angular-ui/ui-router/commit/f674151)), closes [#2952](https://github.com/angular-ui/ui-router/issues/2952)\n* **ng1.uiSref:** Allow nested UISrefs by stopping event propagation on-click ([b4a2499](https://github.com/angular-ui/ui-router/commit/b4a2499)), closes [#2962](https://github.com/angular-ui/ui-router/issues/2962)\n* **ng1.uiSrefActive:** update sref-active after existing transition-in-progress completes ([0994c71](https://github.com/angular-ui/ui-router/commit/0994c71)), closes [#2908](https://github.com/angular-ui/ui-router/issues/2908)\n* **uiSref, uiState:** added click unbind to prevent memory leaks ([79d501e](https://github.com/angular-ui/ui-router/commit/79d501e))\n* **uiView:** separate $uiView and $uiViewAnim element.data() ([a94117d](https://github.com/angular-ui/ui-router/commit/a94117d)), closes [#2763](https://github.com/angular-ui/ui-router/issues/2763)\n\n#### ng2\n\n* **ng2.pushState:** Properly match urls when base path set ([b9be2dc](https://github.com/angular-ui/ui-router/commit/b9be2dc)), closes [#2745](https://github.com/angular-ui/ui-router/issues/2745)\n* **ng2.UIRouterConfig:** Allow new UIRouter() to finish before configuring it ([a151f71](https://github.com/angular-ui/ui-router/commit/a151f71))\n* **ng2.uiSrefActive:** Allow uiSrefActive on ancestor element. ([874fc07](https://github.com/angular-ui/ui-router/commit/874fc07)), closes [#2950](https://github.com/angular-ui/ui-router/issues/2950)\n* **ng2.uiSrefActive:** don't puke on sref to invalid target state ([c9b6570](https://github.com/angular-ui/ui-router/commit/c9b6570))\n* **ng2.UISrefActive:** Use [@ContentChildren](https://github.com/ContentChildren) to query for the nested UISref ([999c42a](https://github.com/angular-ui/ui-router/commit/999c42a)), closes [#2950](https://github.com/angular-ui/ui-router/issues/2950)\n* **ng2.UiView:** fix input resolve binding ([4f53f81](https://github.com/angular-ui/ui-router/commit/4f53f81))\n* **ng2.UIView:** Make routed to component appear *inside* UIView, not next to it. ([558fc80](https://github.com/angular-ui/ui-router/commit/558fc80))\n\n### BREAKING CHANGES:\n\n1) State Glob patterns have been changed slightly.\n\nPreviously, a single wildcard `foo.*` could match \"missing segments\" on the end of a state name.\nFor example, `foo.*` would match the state `foo`.\nLikewise, `foo.*.*.*` would also match the `foo` state.\n\nNow, a single wildcard matches exactly one segment.\n`foo.*` will match `foo.bar` and `foo.baz`, but neither `foo` nor `foo.bar.baz`.\n\nIf you previously relied on the single wildcard to match missing segments, use a double wildcard, `foo.**`.\n\nDouble wildcards match 0 or more segments.\n\n[Read more about Glob matching](https://ui-router.github.io/docs/latest/classes/common.glob.html)\n\n2) (obscure) Angular 1 DI token `ng1UIRouter` renamed to `$uiRouter`\n\n3) (obscure) Renamed `Transition.previous()` to `Transition.redirectedFrom()`\n\n\n<a name=\"1.0.0-beta.1\"></a>\n# [1.0.0-beta.1 commits](https://github.com/angular-ui/ui-router/compare/1.0.0-alpha.5...1.0.0-beta.1) (2016-06-30)\n\n# UI-Router 1.0 is in beta\n\n## UI-Router has a new home!\n\nhttps://ui-router.github.io/new-ui-router-site/\n\n\n# BREAKING CHANGES\n\nThese breaking changes are for users upgrading from a previous alpha, not from 0.x legacy series.\nThis list is extensive, but typical users won't be affected by most of these changes.\n\nThe most common breaks will be #1 and #2\n\n1) BC-BREAK: renamed all Ui* (lowercase 'i') symbols to UI* (uppercase 'I') for more consistent naming.\n   - UiView -> UIView\n   - UiSref -> UISref (and related directives)\n   - UiInjector -> UIInjector\n\n2) BC-BREAK: Transition Hooks are no longer injected (onBefore/onStart/onExit/onRetain/onEnter/onFinish/onSuccess/onError)\n\n   Previously, a hook like `['$state', ($state) => $state.target('foo')]` would get `$state` injected.\n   Now, all hooks receive two parameters:\n   - transition: the current Transition, which has an `injector()` function\n   - state: for onEnter/onRetain/onExit hooks only, the State which the hook is being run for. This value will be null for onBefore/onStart/onFinish/onSuccess/onError hooks.\n\n   Refactor your hooks\n   from: `['$state', 'mySvc', ($state, mySvc) => mySvc.foo() ? $state.target('foo')] : true`\n   to: `(trans) => trans.injector().get('mySvc').foo() ? trans.router.stateService.target('foo') : true`\n\n   Note: for backwards compatiblity, angular 1 onEnter/onExit/onRetain hooks are still injected\n\n3) BC-BREAK: - The (internal API) State object's .resolve property is now an array of Resolvables, built from your state definitions by the StateBuilder\n\n4) BC-BREAK: - Removed the default resolve called `$resolve$`, which was added in a previous alpha\n\n5) BC-BREAK: - `Transition.addResolves()`  replaced with `Transition.addResolvable()`\n\n6) BC-BREAK: remove `ResolveContext.getResolvables()` in favor of `.getToken()`` and `.getResolvable()`\n\n7) BC-BREAK: remove `ResolveContext.invokeLater()` and `.invokeNow()`\n\n8) BC-BREAK: remove support for `JIT` resolves.  This also eliminated the need for the `loadAllControllerLocals` hook which was also removed\n\n9) BC-BREAK: Replaced `ViewConfig.node` with `ViewConfig.path`. Angular 1's `$(element).data('$uiView')` is affected. \n   Previously the .node was the node for the view. Now the last element in the path is the node for the view.\n\n10) BC-BREAK: Nodes no longer have (stateful) `.resolveContext` properties. Instead, a new ResolveContext is wrapped over a Path of Nodes.  Removed `PathFactory.bindResolveContexts()`.\n\n11) BC-BREAK: ResolveContext.resolvePath returns a promise for resolved data as an array of tuples, instead of a promise for an object of resolved data.  Removed `ResolveContext.resolvePathElement()`.\n\n12) BC-BREAK: Removed ResolvePolicy enum in favor of the ResolvePolicy interface `{ when: \"\", async: \"\" }`\n\n13) BC-BREAK: renamed `ResolveContext.isolateRootTo` to `subContext`\n\n14) BC-BREAK: rename `UIRouterGlobals` class to `Globals`; add `UIRouterGlobals` back as an interface\n\n15) BC-BREAK: Moved `defaultErrorHandler` from `TransitionService` to `StateService`\n\n\n\n\n### Features\n\n* **Resolve:** Switch state.resolve to be an array of Resolvables ([6743a60](https://github.com/angular-ui/ui-router/commit/6743a60))\n* **Resolve:** support ng2-like provide object literals.  Support injection of arbitrary tokens, not just strings. ([a7e5ea6](https://github.com/angular-ui/ui-router/commit/a7e5ea6))\n* **Resolve:** support ng2-like provide object literals ([a7e5ea6](https://github.com/angular-ui/ui-router/commit/a7e5ea6))\n* **Transition:** expose the current `UiRouter` object as a public property ([52f1308](https://github.com/angular-ui/ui-router/commit/52f1308))\n* **redirectTo:** Process `redirectTo` property of a state as a redirect string/object/hook function ([6becb12](https://github.com/angular-ui/ui-router/commit/6becb12)), closes [#27](https://github.com/angular-ui/ui-router/issues/27) [#948](https://github.com/angular-ui/ui-router/issues/948)\n* **rejectFactory:** separate transition aborted and transition errored reject types ([55995fd](https://github.com/angular-ui/ui-router/commit/55995fd))\n* **ParamType:** allow a custom parameter Type to specify a default value for a parameter's `dynamic` property\n* **Resolvable:** Added a new Resolve Policy 'RXWAIT'.  If an Observable is returned, pass the observable as the value, but also wait for it to emit its first value\n\n### Bug Fixes\n\n* **ng2.pushState:** Properly match urls when base path set ([b9be2dc](https://github.com/angular-ui/ui-router/commit/b9be2dc)), closes [#2745](https://github.com/angular-ui/ui-router/issues/2745)\n* **ng2.UIRouterConfig:** Allow new UIRouter() to finish before configuring it ([a151f71](https://github.com/angular-ui/ui-router/commit/a151f71))\n* **ng2.UiView:** fix input resolve binding ([4f53f81](https://github.com/angular-ui/ui-router/commit/4f53f81))\n* **ng2.UIView:** Make routed to component appear *inside* UIView, not next to it. ([558fc80](https://github.com/angular-ui/ui-router/commit/558fc80))\n* **redirect:** fix bug where redirected transitions with reload: true got wrong resolve values copied ([bd0e3a3](https://github.com/angular-ui/ui-router/commit/bd0e3a3))\n* **Rejection:** Silence \"Error: Uncaught (in Exception)\" ([38432f4](https://github.com/angular-ui/ui-router/commit/38432f4)), closes [#2676](https://github.com/angular-ui/ui-router/issues/2676)\n* **Trace:** Fix error in console after $trace.enable() ([013c77a](https://github.com/angular-ui/ui-router/commit/013c77a)), closes [#2752](https://github.com/angular-ui/ui-router/issues/2752)\n* **ng2.UIView:** Trigger change detection once for routed components\n\n\n\n\n<a name=\"1.0.0-alpha.5\"></a>\n# [1.0.0-alpha.5 commits](https://github.com/angular-ui/ui-router/compare/1.0.0-alpha.4...1.0.0-alpha.5) (2016-05-13)\n\n\n### Bug Fixes\n\n## Core\n* **attachRoute:** Do not update URL after syncing from url([8742511](https://github.com/angular-ui/ui-router/commit/8742511)), closes [#2730](https://github.com/angular-ui/ui-router/issues/2730)\n* **common:** only use window if available([32ff988](https://github.com/angular-ui/ui-router/commit/32ff988))\n* **coreservices:** Use Promise.reject()/resolve()/all()([62b2ebc](https://github.com/angular-ui/ui-router/commit/62b2ebc)), closes [#2683](https://github.com/angular-ui/ui-router/issues/2683)\n* **paramTypes.hash:** Update hash for each transition([79d4fd7](https://github.com/angular-ui/ui-router/commit/79d4fd7)), closes [#2742](https://github.com/angular-ui/ui-router/issues/2742)\n* **Rejection:** Dont log an ignored trans as console.error([7522c26](https://github.com/angular-ui/ui-router/commit/7522c26)), closes [#2676](https://github.com/angular-ui/ui-router/issues/2676)\n* **resolve:** Fix regression; Allow resolve values to be service names([a34fd3b](https://github.com/angular-ui/ui-router/commit/a34fd3b)), closes [#2588](https://github.com/angular-ui/ui-router/issues/2588)\n* **StateQueueManager:** Do not throw on orphan states.([95ae0cf](https://github.com/angular-ui/ui-router/commit/95ae0cf)), closes [#2546](https://github.com/angular-ui/ui-router/issues/2546)\n* **TransitionManager:** Update url even when the Transition is ignored.([f9c3e3c](https://github.com/angular-ui/ui-router/commit/f9c3e3c)), closes [#2723](https://github.com/angular-ui/ui-router/issues/2723)\n\n## ng1\n* **ng1.component:** Allow route-to-component \"@\" and optional bindings([71b3393](https://github.com/angular-ui/ui-router/commit/71b3393)), closes [#2708](https://github.com/angular-ui/ui-router/issues/2708)\n* **view:** only run ng1 route-to-component code if component: is a string([ec1c534](https://github.com/angular-ui/ui-router/commit/ec1c534))\n\n## ng2\n* **ng2.uiSrefStatus:** Avoid \"dehydrated detector\" error([9111727](https://github.com/angular-ui/ui-router/commit/9111727)), closes [#2684](https://github.com/angular-ui/ui-router/issues/2684)\n* **ng2.uiView:** Fix \"Invalid left-hand in assignment\"([3f711a1](https://github.com/angular-ui/ui-router/commit/3f711a1))\n* **build:** declare external dep on `angular/core` in webpack bundle([adfbde3](https://github.com/angular-ui/ui-router/commit/adfbde3)), closes [#2687](https://github.com/angular-ui/ui-router/issues/2687)\n\n\n\n### Features\n\n## ng2\n* **ng2.uiView:** bind resolve data to input[] and [@Input](https://github.com/Input)(), process bindings:([f6dae28](https://github.com/angular-ui/ui-router/commit/f6dae28))\n* **ng2.urlRouter:** HTML5 PushState support([9842fb7](https://github.com/angular-ui/ui-router/commit/9842fb7)), closes [#2688](https://github.com/angular-ui/ui-router/issues/2688)\n* **ng2.UIRouter:** update to ng2 beta.17([45c0758](https://github.com/angular-ui/ui-router/commit/45c0758))\n* **ng2.UIRouter:** Update ui-router for ng2 rc.1([3219406](https://github.com/angular-ui/ui-router/commit/3219406)), closes [#2722](https://github.com/angular-ui/ui-router/issues/2722)\n\n\n\n<a name=\"1.0.0-alpha.4\"></a>\n# [1.0.0-alpha.4 commits](https://github.com/angular-ui/ui-router/compare/1.0.0-alpha.3...1.0.0-alpha.4) (2016-04-06)\n\n### Bug Fixes\n\n* **ng2.uiView:** Fix \"Invalid left-hand in assignment\" ([3f711a1](https://github.com/angular-ui/ui-router/commit/3f711a1))\n* **view:** only run ng1 route-to-component code if component: is a string ([ec1c534](https://github.com/angular-ui/ui-router/commit/ec1c534))\n\n### Features\n\n* **uiView:** add support for hybrid ng1/ng2 ui-router apps via ng-upgrade and http://github.com/ui-router/ng1-to-ng2\n* **ng2.uiView:** bind resolve data to input[] and @Input(), process bindings: ([f6dae28](https://github.com/angular-ui/ui-router/commit/f6dae28))\n\n\n\n<a name=\"1.0.0-alpha.2\"></a>\n# [1.0.0-alpha.2](https://github.com/angular-ui/ui-router/compare/1.0.0-alpha.1...v1.0.0-alpha.2) (2016-04-03)\n\nChanges between 1.0.0-alpha.1 and 1.0.0-alpha.2\n\n## Angular 2\nThis is the first release with angular 2 support.  See http://github.com/ui-router/quickstart-ng2 for a small ui-router-ng2 app\n\n### Bug Fixes\n\n* **ViewHooks:** Avoid calling $onInit if angular 1.5 will call it for us ([d42b617](https://github.com/angular-ui/ui-router/commit/d42b617)), closes [#2660](https://github.com/angular-ui/ui-router/issues/2660)\n* **ViewHooks:** Fix problem with injecting uiCanExit ([76ab22d](https://github.com/angular-ui/ui-router/commit/76ab22d)), closes [#2661](https://github.com/angular-ui/ui-router/issues/2661)\n* **view:** temporary sanity check that a node exists ([1c0edeb](https://github.com/angular-ui/ui-router/commit/1c0edeb)), closes [#2657](https://github.com/angular-ui/ui-router/issues/2657)\n* **justjs.$q:** Fix $q.all([..]) and $q.all({...}) ([b1624c6](https://github.com/angular-ui/ui-router/commit/b1624c6))\n* **ng2.uiSref:** Fix anchor href generation ([98b5b42](https://github.com/angular-ui/ui-router/commit/98b5b42))\n* **ng2.uiSrefStatus:** calculate target state parameters ([46cdf4c](https://github.com/angular-ui/ui-router/commit/46cdf4c))\n* **ng2.uiView:** Dispose prev comp on empty viewconfig ([f28e0c3](https://github.com/angular-ui/ui-router/commit/f28e0c3))\n\n### Features\n\n* **UIRouterConfig:** Define UIRouterConfig class for router bootstrap ([c16b9e6](https://github.com/angular-ui/ui-router/commit/c16b9e6))\n* **UIRouterGlobals:** Create UIRouterGlobals ([0eb7406](https://github.com/angular-ui/ui-router/commit/0eb7406)), closes [#2525](https://github.com/angular-ui/ui-router/issues/2525)\n* **ui-router-ng2:** Update providers and viewsBuilder to match new 1.0 API ([ff54d61](https://github.com/angular-ui/ui-router/commit/ff54d61))\n* **ng2.uiSrefActive:** Implement uiSrefStatus, uiSrefActive, uiSrefActiveEq ([fcb15c5](https://github.com/angular-ui/ui-router/commit/fcb15c5))\n\n\n\n<a name=\"1.0.0-alpha.1\"></a>\n# [1.0.0-alpha.1 commits](https://github.com/angular-ui/ui-router/compare/1.0.0alpha0...1.0.0-alpha.1) (2016-03-27)\n\n## We will maintain a list of [Known BC from 0.2.x to 1.0 final](https://github.com/angular-ui/ui-router/issues/2219) to help people upgrade to the 1.0 release.\n\n## Bug fixes and features since 1.0.0alpha0\n\n### Bug Fixes\n\n* **date:** Compare dates only using year, month, date ([7a68ade](https://github.com/angular-ui/ui-router/commit/7a68ade)), closes [#2484](https://github.com/angular-ui/ui-router/issues/2484)\n* **params:** Clone all properties of a Node. Introduce applyRawParams() ([88c624d](https://github.com/angular-ui/ui-router/commit/88c624d))\n* **RejectFactory:** stringify rejections with circular dependency-aware stringify ([199db79](https://github.com/angular-ui/ui-router/commit/199db79)), closes [#2538](https://github.com/angular-ui/ui-router/issues/2538)\n* **src/resolve:** use injector's strictDi value in calls to .annotate ([4c5b5d8](https://github.com/angular-ui/ui-router/commit/4c5b5d8))\n* **stateQueueManager:** Use `location: true` for url-matched transitions ([25e0c04](https://github.com/angular-ui/ui-router/commit/25e0c04)), closes [#2455](https://github.com/angular-ui/ui-router/issues/2455)\n* **stateService:** Process reload: in the StateService.target() ([081da32](https://github.com/angular-ui/ui-router/commit/081da32)), closes [#2537](https://github.com/angular-ui/ui-router/issues/2537)\n* **Transition:** Do not reuse resolves for reloaded state during redirect ([0c123c3](https://github.com/angular-ui/ui-router/commit/0c123c3)), closes [#2539](https://github.com/angular-ui/ui-router/issues/2539)\n* **Transition:** Reject Transition promise when onBefore error ([4b6d56f](https://github.com/angular-ui/ui-router/commit/4b6d56f)), closes [#2561](https://github.com/angular-ui/ui-router/issues/2561)\n* **Transition:** Reset URL to current state after aborted transition ([3a1308b](https://github.com/angular-ui/ui-router/commit/3a1308b)), closes [#2611](https://github.com/angular-ui/ui-router/issues/2611)\n* **transition/transitionService:** uses console.error to log error in default error handler ([43a8fc5](https://github.com/angular-ui/ui-router/commit/43a8fc5))\n* **ui-sref:** update ui-sref-active/eq info when params change ([dcbaebf](https://github.com/angular-ui/ui-router/commit/dcbaebf)), closes [#2554](https://github.com/angular-ui/ui-router/issues/2554)\n* **ui-state:** update ui-sref-active/eq info ([025ebc8](https://github.com/angular-ui/ui-router/commit/025ebc8)), closes [#2488](https://github.com/angular-ui/ui-router/issues/2488)\n* **UrlMatcher:** Format parent/child UrlMatchers properly ([86e07ef](https://github.com/angular-ui/ui-router/commit/86e07ef)), closes [##2504](https://github.com/#/issues/2504)\n* **UrlMatcher:** isOptional always false for empty parameter ([4e85db4](https://github.com/angular-ui/ui-router/commit/4e85db4))\n\n### Features\n\n* **params:** Add uiOnParamsChanged controller callback ([961c96d](https://github.com/angular-ui/ui-router/commit/961c96d)), closes [#2608](https://github.com/angular-ui/ui-router/issues/2608) [#2470](https://github.com/angular-ui/ui-router/issues/2470) [#2391](https://github.com/angular-ui/ui-router/issues/2391) [#1967](https://github.com/angular-ui/ui-router/issues/1967)\n* **resolve:** Allow all resolved data for a node to be injected as `$resolve$` ([e432c27](https://github.com/angular-ui/ui-router/commit/e432c27))\n* **state:** Expose the internal state API via `$$state()` ([92053f1](https://github.com/angular-ui/ui-router/commit/92053f1)), closes [#13](https://github.com/angular-ui/ui-router/issues/13)\n* **ui-router-ng2:** Initial angular2 support ([217de70](https://github.com/angular-ui/ui-router/commit/217de70))\n* **uiCanExit:** Add controller lifecycle hook \"uiCanExit\" ([afcfe95](https://github.com/angular-ui/ui-router/commit/afcfe95))\n* **uiView:** Expose the resolved data for a state as $scope.$resolve ([0f6aea6](https://github.com/angular-ui/ui-router/commit/0f6aea6)), closes [#2175](https://github.com/angular-ui/ui-router/issues/2175) [#2547](https://github.com/angular-ui/ui-router/issues/2547)\n* **uiView:** Fire the $onInit hook ([c8afc38](https://github.com/angular-ui/ui-router/commit/c8afc38)), closes [#2559](https://github.com/angular-ui/ui-router/issues/2559)\n* **uiView:** Put $animate promises on element.data('$uiView') ([a5578de](https://github.com/angular-ui/ui-router/commit/a5578de)), closes [#2562](https://github.com/angular-ui/ui-router/issues/2562) [#2579](https://github.com/angular-ui/ui-router/issues/2579)\n* **view:** Route a view to a directive using `component:` ([1552032](https://github.com/angular-ui/ui-router/commit/1552032)), closes [#2627](https://github.com/angular-ui/ui-router/issues/2627)\n\n\n\n## Other commits\n\nMany of these commits are merged from 0.2.x `legacy` branch\n\n* **uiSrefActive:** allow multiple classes ([120d7ad](https://github.com/angular-ui/ui-router/commit/120d7ad)), closes [#2481](https://github.com/angular-ui/ui-router/issues/2481) [#2482](https://github.com/angular-ui/ui-router/issues/2482)\n* **justjs:** provide naive implementation of most of the coreservices api ([426f134](https://github.com/angular-ui/ui-router/commit/426f134))\n* **resolve:** add $resolve service back to 1.0 ([70c6659](https://github.com/angular-ui/ui-router/commit/70c6659))\n* **uiSrefActive:** allow active & active-eq on same element ([d9a676b](https://github.com/angular-ui/ui-router/commit/d9a676b)), closes [#1997](https://github.com/angular-ui/ui-router/issues/1997)\n* **uiSrefActive:** provide a ng-{class,style} like interface ([a9ff6fe](https://github.com/angular-ui/ui-router/commit/a9ff6fe)), closes [#1431](https://github.com/angular-ui/ui-router/issues/1431)\n* **uiSrefActive:** Added support for multiple nested uiSref directives ([b184494](https://github.com/angular-ui/ui-router/commit/b184494))\n* **uiState:** add ui-state directive ([3831af1](https://github.com/angular-ui/ui-router/commit/3831af1)), closes [#395](https://github.com/angular-ui/ui-router/issues/395) [#900](https://github.com/angular-ui/ui-router/issues/900) [#1932](https://github.com/angular-ui/ui-router/issues/1932)\n* **urlMatcher:** add support for optional spaces ([4b7f304](https://github.com/angular-ui/ui-router/commit/4b7f304))\n* **urlMatcher:** Add param only type names ([6a371f9](https://github.com/angular-ui/ui-router/commit/6a371f9))\n* **$IncludedByStateFilter:** add parameters to $IncludedByStateFilter ([963f6e7](https://github.com/angular-ui/ui-router/commit/963f6e7)), closes [#1735](https://github.com/angular-ui/ui-router/issues/1735)\n* **$state:** make state data inheritance prototypical ([c4fec8c](https://github.com/angular-ui/ui-router/commit/c4fec8c))\n* **$state:** Inject templateProvider with resolved values ([afa20f2](https://github.com/angular-ui/ui-router/commit/afa20f2))\n* **$state:** added 'state' to state reload method (feat no.1612) ([b8f0457](https://github.com/angular-ui/ui-router/commit/b8f0457))\n* **$state:** broadcast $stateChangeCancel event when event.preventDefault() is called in $sta ([ecefb75](https://github.com/angular-ui/ui-router/commit/ecefb75))\n* **$state:** inject resolve params into controllerProvider ([b380c22](https://github.com/angular-ui/ui-router/commit/b380c22)), closes [#1131](https://github.com/angular-ui/ui-router/issues/1131)\n* **$state:** support URLs with #fragments ([3da0a17](https://github.com/angular-ui/ui-router/commit/3da0a17))\n* **$uiViewScroll:** change function to return promise ([c2a9a31](https://github.com/angular-ui/ui-router/commit/c2a9a31)), closes [#1702](https://github.com/angular-ui/ui-router/issues/1702)\n\n\n\n<a name=\"0.2.18\"></a>\n### 0.2.18 (2016-02-07)\n\nThis is a maintenance release which fixes a few known bugs introduced in 0.2.16.\n\n#### Bug Fixes\n\n* **$urlRouter:** revert BC: resolve clashing of routes This reverts commit b5c57c8ec2e14e17e75104 ([2f1ebefc](https://github.com/angular-ui/ui-router/commit/2f1ebefc242ff48960e0bf63da359296a38f6852), closes [#2501](https://github.com/angular-ui/ui-router/issues/2501))\n* **uiState:** Corrected typo for 'ref' variable (#2488, #2508) ([b8f3c144](https://github.com/angular-ui/ui-router/commit/b8f3c144b913e620f177b78f3b4f52afa61d41a6))\n* **$urlMatcherFactory:** Fix to make the YUI Javascript compressor work ([ad9c41d2](https://github.com/angular-ui/ui-router/commit/ad9c41d2e723d50e30dd3452fbd274b7057dc3d9))\n* **stateBuilder:** fix non-url params on a state without a url. The parameters are now applied when ([d6d8c332](https://github.com/angular-ui/ui-router/commit/d6d8c3322c4dde8bb5b8dde25f9fcda49e9c4c81), closes [#2025](https://github.com/angular-ui/ui-router/issues/2025))\n* **ui-view:** (ui-view) use static renderer when no animation is present for a ui-view ([2523bbdb](https://github.com/angular-ui/ui-router/commit/2523bbdb5542483a489c22804f1751b8b9f71703), closes [#2485](https://github.com/angular-ui/ui-router/issues/2485)). This allows a ui-view scope to be destroyed when switching states, before the next view is initialized.\n\n\n#### Features\n\n* **ui-view:** Add noanimation attribute to specify static renderer. ([2523bbdb](https://github.com/angular-ui/ui-router/commit/2523bbdb5542483a489c22804f1751b8b9f71703), closes [#2485](https://github.com/angular-ui/ui-router/issues/2485)). This allows a ui-view scope to be destroyed before the next ui-view is initialized, when ui-view animation is not present.\n\n\n<a name=\"0.2.17\"></a>\n### 0.2.17 (2016-01-25)\n\n\n#### Bug Fixes\n\n* **uiSrefActive:** allow multiple classes ([a89114a0](https://github.com/angular-ui/ui-router/commit/a89114a083813c1a7280c48fc18e626caa5a31f4), closes [#2481](https://github.com/angular-ui/ui-router/issues/2481), [#2482](https://github.com/angular-ui/ui-router/issues/2482))\n\n\n<a name=\"0.2.16\"></a>\n### 0.2.16 (2016-01-24)\n\n\n#### Bug Fixes\n\n* **$state:** \n  * statechangeCancel: Avoid infinite digest in .otherwise/redirect case. Don't clobber url if a new transition has started.  Closes #222 ([e00aa695](https://github.com/angular-ui/ui-router/commit/e00aa695e41ddc5ebd5d2b226aa0917a751b11aa), closes [#2238](https://github.com/angular-ui/ui-router/issues/2238))\n  * transitionTo: Allow hash (#) value to be read as toParams['#'] in events.  Re-add the saved hash before broadcasting $stateChangeStart event.  ([8c1bf30d](https://github.com/angular-ui/ui-router/commit/8c1bf30d2a3b78ba40b330f12d854c885d6cc117))\n* **$stateParams:** Fix for testing: reset service instance between tests ([2aeb0c4b](https://github.com/angular-ui/ui-router/commit/2aeb0c4b205baf6cfa2ef25bb986bb160dc13bf9))\n* **$urlRouter:** \n  * Sort URL rules by specificity. Potential minor BC if apps were relying on rule registration order.  ([b5c57c8e](https://github.com/angular-ui/ui-router/commit/b5c57c8ec2e14e17e75104c1424654f126ea4011))\n  * Use $sniffer for pushstate compat check ([c219e801](https://github.com/angular-ui/ui-router/commit/c219e801797f340ef9c5c919ab890ef003a7a042))\n* **UrlMatcher:**\n  * Properly encode/decode slashes in parameters Closes #2172 Closes #2250 Closes #1 ([02e98660](https://github.com/angular-ui/ui-router/commit/02e98660a80dfd1ca4b113dd24ee304af91e9f8c), closes [#2339](https://github.com/angular-ui/ui-router/issues/2339))\n  * Array types:  Fix default value for array query parameters.  Pass empty arrays through in handler. ([20d6e243](https://github.com/angular-ui/ui-router/commit/20d6e243f1745ddbf257217245a1dc22eabe13da), closes [#2222](https://github.com/angular-ui/ui-router/issues/2222))\n  * Remove trailing slash, if parameter is optional and was squashed from URL ([77fa11bf](https://github.com/angular-ui/ui-router/commit/77fa11bf0787d0f6da97ab0003ab29afb7411391), closes [#1902](https://github.com/angular-ui/ui-router/issues/1902))\n  * Allow a parameter declaration to configure the parameter type by name. closes #2294 ([e4010249](https://github.com/angular-ui/ui-router/commit/e40102492d40fe1cf6ba14d955fcc9f345c16458))\n  * include the slash when recognizing squashed params in url ([b5130bb1](https://github.com/angular-ui/ui-router/commit/b5130bb1215e15f832ea6daa670410b9a950c0d4), closes [#2064](https://github.com/angular-ui/ui-router/issues/2064))\n  * Allow url query param names to contain periods ([d31b3337](https://github.com/angular-ui/ui-router/commit/d31b3337cc2ce71d87c92fdded629e46558d0b49))\n* **reloadOnSearch:** Update `locals.globals.$stateParams` when reloadOnSearch=false ([350d3e87](https://github.com/angular-ui/ui-router/commit/350d3e87783a2263fd7d23913da34f1268c3300b), closes [#2356](https://github.com/angular-ui/ui-router/issues/2356))\n* **ui-view:** \n  * fix $animate usage for ng 1.4+ ([9b6d9a2d](https://github.com/angular-ui/ui-router/commit/9b6d9a2d0ce4ae08384165cb517bddea59b67892))\n  * change $viewContentLoading to pair with $viewContentLoaded ([f9b43d66](https://github.com/angular-ui/ui-router/commit/f9b43d66833f0e17de41fd8d1cc3b491e3ba4a0e), closes [#685](https://github.com/angular-ui/ui-router/issues/685))\n  * $destroy event is triggered before animation ends ([1be13795](https://github.com/angular-ui/ui-router/commit/1be13795686ab78abb2d5094bc8addcacb928975))\n* **uiSref:** \n  * Ensure URL once param checks pass ([9dc31c54](https://github.com/angular-ui/ui-router/commit/9dc31c5465328e5666468b0c2319ce205f4b72f8), closes [#2091](https://github.com/angular-ui/ui-router/issues/2091))\n  * uiSrefActive: update the active classes after linking directive ([7c914030](https://github.com/angular-ui/ui-router/commit/7c914030f13e05e45a941c1b723cb785db729890))\n\n\n#### Features\n\n* **$IncludedByStateFilter:** add parameters to $IncludedByStateFilter ([963f6e71](https://github.com/angular-ui/ui-router/commit/963f6e71633b9c3a266f3991d79089b7d14786b4), closes [#1735](https://github.com/angular-ui/ui-router/issues/1735))\n* **isStateFilter:** Include optional state params. ([71d74699](https://github.com/angular-ui/ui-router/commit/71d7469987ee9ca86a41c8c6393ccd5d8913c3d6))\n* **$state:** make state data inheritance prototypical ([c4fec8c7](https://github.com/angular-ui/ui-router/commit/c4fec8c7998113902af4152d716c42dada6eb465))\n* **$stateChangeStart:** Add options to event ([a1f07559](https://github.com/angular-ui/ui-router/commit/a1f07559ec74e10ff80bc4be81f287e3772b8fcb))\n* **UrlMatcher:** Add param only type names ([6a371f9b](https://github.com/angular-ui/ui-router/commit/6a371f9b70e37a82eb324122879e4473c3f6d526))\n* **uiSrefActive:**\n  * provide a ng-{class,style} like interface ([a9ff6feb](https://github.com/angular-ui/ui-router/commit/a9ff6febb469e0d5cd49054216c4472df7a6259d))\n  * allow active & active-eq on same element ([d9a676ba](https://github.com/angular-ui/ui-router/commit/d9a676ba2c4d9e954be224c60496bcb38f6074e3))\n* **uiState:** add ui-state directive ([3831af1d](https://github.com/angular-ui/ui-router/commit/3831af1dc71b601351e6694af0665a77297f8f7f), closes [#395](https://github.com/angular-ui/ui-router/issues/395), [#900](https://github.com/angular-ui/ui-router/issues/900), [#1932](https://github.com/angular-ui/ui-router/issues/1932))\n* **urlMatcher:** add support for optional spaces in params ([4b7f3046](https://github.com/angular-ui/ui-router/commit/4b7f304617f0b3590b532103b5c2fb526c98a9e4))\n\n\n<a name=\"0.2.15\"></a>\n### 0.2.15 (2015-05-19)\n\n\n#### Bug Fixes\n\n* **$state:** reloadOnSearch should not affect non-search param changes. ([6ca0d770](https://github.com/angular-ui/ui-router/commit/6ca0d7704cf7de9c6e6b7bb64df2f9c68fe081cc), closes [#1079](https://github.com/angular-ui/ui-router/issues/1079))\n* **urlMatcherFactory:** Revert to 0.2.13 behavior where all string parameters are considered optional fi ([495a02c3](https://github.com/angular-ui/ui-router/commit/495a02c3cbde501c1c149bce137806669209bc29), closes [#1963](https://github.com/angular-ui/ui-router/issues/1963))\n* **urlRouter:** allow .when() to redirect, even after a successful $state.go() - This partially  ([48aeaff6](https://github.com/angular-ui/ui-router/commit/48aeaff645baf3f42f5a8940ebd97563791ad9f8), closes [#1584](https://github.com/angular-ui/ui-router/issues/1584))\n\n\n#### Features\n\n* **$state:** Inject templateProvider with resolved values ([afa20f22](https://github.com/angular-ui/ui-router/commit/afa20f22373b7176b26daa7e1099750c4254a354))\n\n\n<a name=\"0.2.14\"></a>\n### 0.2.14 (2015-04-23)\n\n\n#### Bug Fixes\n\n* **$StateRefDirective:** resolve missing support for svg anchor elements #1667 ([0149a7bb](https://github.com/angular-ui/ui-router/commit/0149a7bb38b7af99388a1ad7cc9909a7b7c4439d))\n* **$urlMatcherFactory:**\n  * regex params should respect case-sensitivity ([1e10519f](https://github.com/angular-ui/ui-router/commit/1e10519f3be6bbf0cefdcce623cd2ade06e649e5), closes [#1671](https://github.com/angular-ui/ui-router/issues/1671))\n  * unquote all dashes from array params ([06664d33](https://github.com/angular-ui/ui-router/commit/06664d330f882390655dcfa83e10276110d0d0fa))\n  * add Type.$normalize function ([b0c6aa23](https://github.com/angular-ui/ui-router/commit/b0c6aa2350fdd3ce8483144774adc12f5a72b7e9))\n  * make optional params regex grouping optional ([06f73794](https://github.com/angular-ui/ui-router/commit/06f737945e83e668d09cfc3bcffd04a500ff1963), closes [#1576](https://github.com/angular-ui/ui-router/issues/1576))\n* **$state:** allow about.*.** glob patterns ([e39b27a2](https://github.com/angular-ui/ui-router/commit/e39b27a2cb7d88525c446a041f9fbf1553202010))\n* **uiSref:**\n  * use Object's toString instead of Window's toString ([2aa7f4d1](https://github.com/angular-ui/ui-router/commit/2aa7f4d139dbd5b9fcc4afdcf2ab6642c87f5671))\n  * add absolute to allowed transition options ([ae1b3c4e](https://github.com/angular-ui/ui-router/commit/ae1b3c4eedc37983400d830895afb50457c63af4))\n* **uiSrefActive:** Apply active classes on lazy loaded states ([f0ddbe7b](https://github.com/angular-ui/ui-router/commit/f0ddbe7b4a91daf279c3b7d0cee732bb1f3be5b4))\n* **uiView:** add `$element` to locals for view controller ([db68914c](https://github.com/angular-ui/ui-router/commit/db68914cd6c821e7dec8155bd33142a3a97f5453))\n\n\n#### Features\n\n* **$state:**\n  * support URLs with #fragments ([3da0a170](https://github.com/angular-ui/ui-router/commit/3da0a17069e27598c0f9d9164e104dd5ce05cdc6))\n  * inject resolve params into controllerProvider ([b380c223](https://github.com/angular-ui/ui-router/commit/b380c223fe12e2fde7582c0d6b1ed7b15a23579b), closes [#1131](https://github.com/angular-ui/ui-router/issues/1131))\n  * added 'state' to state reload method (feat no.1612)  - modiefied options.reload  ([b8f04575](https://github.com/angular-ui/ui-router/commit/b8f04575a8557035c1858c4d5c8dbde3e1855aaa))\n  * broadcast $stateChangeCancel event when event.preventDefault() is called in $sta ([ecefb758](https://github.com/angular-ui/ui-router/commit/ecefb758cb445e41620b62a272aafa3638613d7a))\n* **$uiViewScroll:** change function to return promise ([c2a9a311](https://github.com/angular-ui/ui-router/commit/c2a9a311388bb212e5a2e820536d1d739f829ccd), closes [#1702](https://github.com/angular-ui/ui-router/issues/1702))\n* **uiSrefActive:** Added support for multiple nested uiSref directives ([b1844948](https://github.com/angular-ui/ui-router/commit/b18449481d152b50705abfce2493a444eb059fa5))\n\n\n<a name=\"0.2.13\"></a>\n### 0.2.13 (2014-11-20)\n\nThis release primarily fixes issues reported against 0.2.12\n\n#### Bug Fixes\n\n* **$state:** fix $state.includes/.is to apply param types before comparisions fix(uiSref): ma ([19715d15](https://github.com/angular-ui/ui-router/commit/19715d15e3cbfff724519e9febedd05b49c75baa), closes [#1513](https://github.com/angular-ui/ui-router/issues/1513))\n  * Avoid re-synchronizing from url after .transitionTo ([b267ecd3](https://github.com/angular-ui/ui-router/commit/b267ecd348e5c415233573ef95ebdbd051875f52), closes [#1573](https://github.com/angular-ui/ui-router/issues/1573))\n* **$urlMatcherFactory:**\n  * Built-in date type uses local time zone ([d726bedc](https://github.com/angular-ui/ui-router/commit/d726bedcbb5f70a5660addf43fd52ec730790293))\n  * make date type fn check .is before running ([aa94ce3b](https://github.com/angular-ui/ui-router/commit/aa94ce3b86632ad05301530a2213099da73a3dc0), closes [#1564](https://github.com/angular-ui/ui-router/issues/1564))\n  * early binding of array handler bypasses type resolution ([ada4bc27](https://github.com/angular-ui/ui-router/commit/ada4bc27df5eff3ba3ab0de94a09bd91b0f7a28c))\n  * add 'any' Type for non-encoding non-url params ([3bfd75ab](https://github.com/angular-ui/ui-router/commit/3bfd75ab445ee2f1dd55275465059ed116b10b27), closes [#1562](https://github.com/angular-ui/ui-router/issues/1562))\n  * fix encoding slashes in params ([0c983a08](https://github.com/angular-ui/ui-router/commit/0c983a08e2947f999683571477debd73038e95cf), closes [#1119](https://github.com/angular-ui/ui-router/issues/1119))\n  * fix mixed path/query params ordering problem ([a479fbd0](https://github.com/angular-ui/ui-router/commit/a479fbd0b8eb393a94320973e5b9a62d83912ee2), closes [#1543](https://github.com/angular-ui/ui-router/issues/1543))\n* **ArrayType:**\n  * specify empty array mapping corner case ([74aa6091](https://github.com/angular-ui/ui-router/commit/74aa60917e996b0b4e27bbb4eb88c3c03832021d), closes [#1511](https://github.com/angular-ui/ui-router/issues/1511))\n  * fix .equals for array types ([5e6783b7](https://github.com/angular-ui/ui-router/commit/5e6783b77af9a90ddff154f990b43dbb17eeda6e), closes [#1538](https://github.com/angular-ui/ui-router/issues/1538))\n* **Param:** fix default value shorthand declaration ([831d812a](https://github.com/angular-ui/ui-router/commit/831d812a524524c71f0ee1c9afaf0487a5a66230), closes [#1554](https://github.com/angular-ui/ui-router/issues/1554))\n* **common:** fixed the _.filter clone to not create sparse arrays ([750f5cf5](https://github.com/angular-ui/ui-router/commit/750f5cf5fd91f9ada96f39e50d39aceb2caf22b6), closes [#1563](https://github.com/angular-ui/ui-router/issues/1563))\n* **ie8:** fix calls to indexOf and filter ([dcb31b84](https://github.com/angular-ui/ui-router/commit/dcb31b843391b3e61dee4de13f368c109541813e), closes [#1556](https://github.com/angular-ui/ui-router/issues/1556))\n\n\n#### Features\n\n* add json parameter Type ([027f1fcf](https://github.com/angular-ui/ui-router/commit/027f1fcf9c0916cea651e88981345da6f9ff214a))\n\n\n<a name=\"0.2.12\"></a>\n### 0.2.12 (2014-11-13)\n\n#### Bug Fixes\n\n* **$resolve:** use resolve fn result, not parent resolved value of same name ([67f5e00c](https://github.com/angular-ui/ui-router/commit/67f5e00cc9aa006ce3fe6cde9dff261c28eab70a), closes [#1317], [#1353])\n* **$state:**\n  * populate default params in .transitionTo. ([3f60fbe6](https://github.com/angular-ui/ui-router/commit/3f60fbe6d65ebeca8d97952c05aa1d269f1b7ba1), closes [#1396])\n  * reload() now reinvokes controllers ([73443420](https://github.com/angular-ui/ui-router/commit/7344342018847902594dc1fc62d30a5c30f01763), closes [#582])\n  * do not emit $viewContentLoading if notify: false ([74255feb](https://github.com/angular-ui/ui-router/commit/74255febdf48ae082a02ca1e735165f2c369a463), closes [#1387](https://github.com/angular-ui/ui-router/issues/1387))\n  * register states at config-time ([4533fe36](https://github.com/angular-ui/ui-router/commit/4533fe36e0ab2f0143edd854a4145deaa013915a))\n  * handle parent.name when parent is obj ([4533fe36](https://github.com/angular-ui/ui-router/commit/4533fe36e0ab2f0143edd854a4145deaa013915a))\n* **$urlMatcherFactory:**\n  * register types at config ([4533fe36](https://github.com/angular-ui/ui-router/commit/4533fe36e0ab2f0143edd854a4145deaa013915a), closes [#1476])\n  * made path params default value \"\" for backwards compat ([8f998e71](https://github.com/angular-ui/ui-router/commit/8f998e71e43a0b31293331c981f5db0f0097b8ba))\n  * Pre-replace certain param values for better mapping ([6374a3e2](https://github.com/angular-ui/ui-router/commit/6374a3e29ab932014a7c77d2e1ab884cc841a2e3))\n  * fixed ParamSet.$$keys() ordering ([9136fecb](https://github.com/angular-ui/ui-router/commit/9136fecbc2bfd4fda748a9914f0225a46c933860))\n  * empty string policy now respected in Param.value() ([db12c85c](https://github.com/angular-ui/ui-router/commit/db12c85c16f2d105415f9bbbdeb11863f64728e0))\n  * \"string\" type now encodes/decodes slashes ([3045e415](https://github.com/angular-ui/ui-router/commit/3045e41577a8b8b8afc6039f42adddf5f3c061ec), closes [#1119])\n  * allow arrays in both path and query params ([fdd2f2c1](https://github.com/angular-ui/ui-router/commit/fdd2f2c191c4a67c874fdb9ec9a34f8dde9ad180), closes [#1073], [#1045], [#1486], [#1394])\n  * typed params in search ([8d4cab69](https://github.com/angular-ui/ui-router/commit/8d4cab69dd67058e1a716892cc37b7d80a57037f), closes [#1488](https://github.com/angular-ui/ui-router/issues/1488))\n  * no longer generate unroutable urls ([cb9fd9d8](https://github.com/angular-ui/ui-router/commit/cb9fd9d8943cb26c7223f6990db29c82ae8740f8), closes [#1487](https://github.com/angular-ui/ui-router/issues/1487))\n  * handle optional parameter followed by required parameter in url format. ([efc72106](https://github.com/angular-ui/ui-router/commit/efc72106ddcc4774b48ea176a505ef9e95193b41))\n  * default to parameter string coersion. ([13a468a7](https://github.com/angular-ui/ui-router/commit/13a468a7d54c2fb0751b94c0c1841d580b71e6dc), closes [#1414](https://github.com/angular-ui/ui-router/issues/1414))\n  * concat respects strictMode/caseInsensitive ([dd72e103](https://github.com/angular-ui/ui-router/commit/dd72e103edb342d9cf802816fe127e1bbd68fd5f), closes [#1395])\n* **ui-sref:**\n  * Allow sref state options to take a scope object ([b5f7b596](https://github.com/angular-ui/ui-router/commit/b5f7b59692ce4933e2d63eb5df3f50a4ba68ccc0))\n  * replace raw href modification with attrs. ([08c96782](https://github.com/angular-ui/ui-router/commit/08c96782faf881b0c7ab00afc233ee6729548fa0))\n  * nagivate to state when url is \"\" fix($state.href): generate href for state with  ([656b5aab](https://github.com/angular-ui/ui-router/commit/656b5aab906e5749db9b5a080c6a83b95f50fd91), closes [#1363](https://github.com/angular-ui/ui-router/issues/1363))\n  * Check that state is defined in isMatch() ([92aebc75](https://github.com/angular-ui/ui-router/commit/92aebc7520f88babdc6e266536086e07263514c3), closes [#1314](https://github.com/angular-ui/ui-router/issues/1314), [#1332](https://github.com/angular-ui/ui-router/issues/1332))\n* **uiView:**\n  * allow inteprolated ui-view names ([81f6a19a](https://github.com/angular-ui/ui-router/commit/81f6a19a432dac9198fd33243855bfd3b4fea8c0), closes [#1324](https://github.com/angular-ui/ui-router/issues/1324))\n  * Made anim work with angular 1.3 ([c3bb7ad9](https://github.com/angular-ui/ui-router/commit/c3bb7ad903da1e1f3c91019cfd255be8489ff4ef), closes [#1367](https://github.com/angular-ui/ui-router/issues/1367), [#1345](https://github.com/angular-ui/ui-router/issues/1345))\n* **urlRouter:** html5Mode accepts an object from angular v1.3.0-rc.3 ([7fea1e9d](https://github.com/angular-ui/ui-router/commit/7fea1e9d0d8c6e09cc6c895ecb93d4221e9adf48))\n* **stateFilters:** mark state filters as stateful. ([a00b353e](https://github.com/angular-ui/ui-router/commit/a00b353e3036f64a81245c4e7898646ba218f833), closes [#1479])\n* **ui-router:** re-add IE8 compatibility for map/filter/keys ([8ce69d9f](https://github.com/angular-ui/ui-router/commit/8ce69d9f7c886888ab53eca7e53536f36b428aae), closes [#1518], [#1383])\n* **package:** point 'main' to a valid filename ([ac903350](https://github.com/angular-ui/ui-router/commit/ac9033501debb63364539d91fbf3a0cba4579f8e))\n* **travis:** make CI build faster ([0531de05](https://github.com/angular-ui/ui-router/commit/0531de052e414a8d839fbb4e7635e923e94865b3))\n\n\n#### Features\n\n##### Default and Typed params\n\nThis release includes a lot of bug fixes around default/optional and typed parameters.  As such, 0.2.12 is the first release where we recommend those features be used.\n\n* **$state:**\n  * add state params validation ([b1379e6a](https://github.com/angular-ui/ui-router/commit/b1379e6a4d38f7ed7436e05873932d7c279af578), closes [#1433](https://github.com/angular-ui/ui-router/issues/1433))\n  * is/includes/get work on relative stateOrName ([232e94b3](https://github.com/angular-ui/ui-router/commit/232e94b3c2ca2c764bb9510046e4b61690c87852))\n  * .reload() returns state transition promise ([639e0565](https://github.com/angular-ui/ui-router/commit/639e0565dece9d5544cc93b3eee6e11c99bd7373))\n* **$templateFactory:** request templateURL as text/html ([ccd60769](https://github.com/angular-ui/ui-router/commit/ccd6076904a4b801d77b47f6e2de4c06ce9962f8), closes [#1287])\n* **$urlMatcherFactory:** Made a Params and ParamSet class ([0cc1e6cc](https://github.com/angular-ui/ui-router/commit/0cc1e6cc461a4640618e2bb594566551c54834e2))\n\n\n\n<a name=\"0.2.11\"></a>\n### 0.2.11 (2014-08-26)\n\n\n#### Bug Fixes\n\n* **$resolve:** Resolves only inherit from immediate parent fixes #702 ([df34e20c](https://github.com/angular-ui/ui-router/commit/df34e20c576299e7a3c8bd4ebc68d42341c0ace9))\n* **$state:**\n  * change $state.href default options.inherit to true ([deea695f](https://github.com/angular-ui/ui-router/commit/deea695f5cacc55de351ab985144fd233c02a769))\n  * sanity-check state lookups ([456fd5ae](https://github.com/angular-ui/ui-router/commit/456fd5aec9ea507518927bfabd62b4afad4cf714), closes [#980](https://github.com/angular-ui/ui-router/issues/980))\n  * didn't comply to inherit parameter ([09836781](https://github.com/angular-ui/ui-router/commit/09836781f126c1c485b06551eb9cfd4fa0f45c35))\n  * allow view content loading broadcast ([7b78edee](https://github.com/angular-ui/ui-router/commit/7b78edeeb52a74abf4d3f00f79534033d5a08d1a))\n* **$urlMatcherFactory:**\n  * detect injected functions ([91f75ae6](https://github.com/angular-ui/ui-router/commit/91f75ae66c4d129f6f69e53bd547594e9661f5d5))\n  * syntax ([1ebed370](https://github.com/angular-ui/ui-router/commit/1ebed37069bae8614d41541d56521f5c45f703f3))\n* **UrlMatcher:**\n  * query param function defaults ([f9c20530](https://github.com/angular-ui/ui-router/commit/f9c205304f10d8a4ebe7efe9025e642016479a51))\n  * don't decode default values ([63607bdb](https://github.com/angular-ui/ui-router/commit/63607bdbbcb432d3fb37856a1cb3da0cd496804e))\n* **travis:** update Node version to fix build ([d6b95ef2](https://github.com/angular-ui/ui-router/commit/d6b95ef23d9dacb4eba08897f5190a0bcddb3a48))\n* **uiSref:**\n  * Generate an href for states with a blank url. closes #1293 ([691745b1](https://github.com/angular-ui/ui-router/commit/691745b12fa05d3700dd28f0c8d25f8a105074ad))\n  * should inherit params by default ([b973dad1](https://github.com/angular-ui/ui-router/commit/b973dad155ad09a7975e1476bd096f7b2c758eeb))\n  * cancel transition if preventDefault() has been called ([2e6d9167](https://github.com/angular-ui/ui-router/commit/2e6d9167d3afbfbca6427e53e012f94fb5fb8022))\n* **uiView:** Fixed infinite loop when is called .go() from a controller. ([e13988b8](https://github.com/angular-ui/ui-router/commit/e13988b8cd6231d75c78876ee9d012cc87f4a8d9), closes [#1194](https://github.com/angular-ui/ui-router/issues/1194))\n* **docs:**\n  * Fixed link to milestones ([6c0ae500](https://github.com/angular-ui/ui-router/commit/6c0ae500cc238ea9fc95adcc15415c55fc9e1f33))\n  * fix bug in decorator example ([4bd00af5](https://github.com/angular-ui/ui-router/commit/4bd00af50b8b88a49d1545a76290731cb8e0feb1))\n  * Removed an incorrect semi-colon ([af97cef8](https://github.com/angular-ui/ui-router/commit/af97cef8b967f2e32177e539ef41450dca131a7d))\n  * Explain return value of rule as function ([5e887890](https://github.com/angular-ui/ui-router/commit/5e8878900a6ffe59a81aed531a3925e34a297377))\n\n\n#### Features\n\n* **$state:**\n  * allow parameters to pass unharmed ([8939d057](https://github.com/angular-ui/ui-router/commit/8939d0572ab1316e458ef016317ecff53131a822))\n    * **BREAKING CHANGE**: state parameters are no longer automatically coerced to strings, and unspecified parameter values are now set to undefined rather than null.\n  * allow prevent syncUrl on failure ([753060b9](https://github.com/angular-ui/ui-router/commit/753060b910d5d2da600a6fa0757976e401c33172))\n* **typescript:** Add typescript definitions for component builds ([521ceb3f](https://github.com/angular-ui/ui-router/commit/521ceb3fd7850646422f411921e21ce5e7d82e0f))\n* **uiSref:** extend syntax for ui-sref ([71cad3d6](https://github.com/angular-ui/ui-router/commit/71cad3d636508b5a9fe004775ad1f1adc0c80c3e))\n* **uiSrefActive:** \n  * Also activate for child states. ([bf163ad6](https://github.com/angular-ui/ui-router/commit/bf163ad6ce176ce28792696c8302d7cdf5c05a01), closes [#818](https://github.com/angular-ui/ui-router/issues/818))\n    * **BREAKING CHANGE** Since ui-sref-active now activates even when child states are active you may need to swap out your ui-sref-active with ui-sref-active-eq, thought typically we think devs want the auto inheritance.\n\n  * uiSrefActiveEq: new directive with old ui-sref-active behavior\n* **$urlRouter:**\n  * defer URL change interception ([c72d8ce1](https://github.com/angular-ui/ui-router/commit/c72d8ce11916d0ac22c81b409c9e61d7048554d7))\n  * force URLs to have valid params ([d48505cd](https://github.com/angular-ui/ui-router/commit/d48505cd328d83e39d5706e085ba319715f999a6))\n  * abstract $location handling ([08b4636b](https://github.com/angular-ui/ui-router/commit/08b4636b294611f08db35f00641eb5211686fb50))\n* **$urlMatcherFactory:**\n  * fail on bad parameters ([d8f124c1](https://github.com/angular-ui/ui-router/commit/d8f124c10d00c7e5dde88c602d966db261aea221))\n  * date type support ([b7f074ff](https://github.com/angular-ui/ui-router/commit/b7f074ff65ca150a3cdbda4d5ad6cb17107300eb))\n  * implement type support ([450b1f0e](https://github.com/angular-ui/ui-router/commit/450b1f0e8e03c738174ff967f688b9a6373290f4))\n* **UrlMatcher:**\n  * handle query string arrays ([9cf764ef](https://github.com/angular-ui/ui-router/commit/9cf764efab45fa9309368688d535ddf6e96d6449), closes [#373](https://github.com/angular-ui/ui-router/issues/373))\n  * injectable functions as defaults ([00966ecd](https://github.com/angular-ui/ui-router/commit/00966ecd91fb745846039160cab707bfca8b3bec))\n  * default values & type decoding for query params ([a472b301](https://github.com/angular-ui/ui-router/commit/a472b301389fbe84d1c1fa9f24852b492a569d11))\n  * allow shorthand definitions ([5b724304](https://github.com/angular-ui/ui-router/commit/5b7243049793505e44b6608ea09878c37c95b1f5))\n  * validates whole interface ([32b27db1](https://github.com/angular-ui/ui-router/commit/32b27db173722e9194ef1d5c0ea7d93f25a98d11))\n  * implement non-strict matching ([a3e21366](https://github.com/angular-ui/ui-router/commit/a3e21366bee0475c9795a1ec76f70eec41c5b4e3))\n  * add per-param config support ([07b3029f](https://github.com/angular-ui/ui-router/commit/07b3029f4d409cf955780113df92e36401b47580))\n    * **BREAKING CHANGE**: the `params` option in state configurations must now be an object keyed by parameter name.\n\n### 0.2.10 (2014-03-12)\n\n\n#### Bug Fixes\n\n* **$state:** use $browser.baseHref() when generating urls with .href() ([cbcc8488](https://github.com/angular-ui/ui-router/commit/cbcc84887d6b6d35258adabb97c714cd9c1e272d))\n* **bower.json:** JS files should not be ignored ([ccdab193](https://github.com/angular-ui/ui-router/commit/ccdab193315f304eb3be5f5b97c47a926c79263e))\n* **dev:** karma:background task is missing, can't run grunt:dev. ([d9f7b898](https://github.com/angular-ui/ui-router/commit/d9f7b898e8e3abb8c846b0faa16a382913d7b22b))\n* **sample:** Contacts menu button not staying active when navigating to detail states. Need t ([2fcb8443](https://github.com/angular-ui/ui-router/commit/2fcb84437cb43ade12682a92b764f13cac77dfe7))\n* **uiSref:** support mock-clicks/events with no data ([717d3ff7](https://github.com/angular-ui/ui-router/commit/717d3ff7d0ba72d239892dee562b401cdf90e418))\n* **uiView:**\n  * Do NOT autoscroll when autoscroll attr is missing ([affe5bd7](https://github.com/angular-ui/ui-router/commit/affe5bd785cdc3f02b7a9f64a52e3900386ec3a0), closes [#807](https://github.com/angular-ui/ui-router/issues/807))\n  * Refactoring uiView directive to copy ngView logic ([548fab6a](https://github.com/angular-ui/ui-router/commit/548fab6ab9debc9904c5865c8bc68b4fc3271dd0), closes [#857](https://github.com/angular-ui/ui-router/issues/857), [#552](https://github.com/angular-ui/ui-router/issues/552))\n\n\n#### Features\n\n* **$state:** includes() allows glob patterns for state matching. ([2d5f6b37](https://github.com/angular-ui/ui-router/commit/2d5f6b37191a3135f4a6d9e8f344c54edcdc065b))\n* **UrlMatcher:** Add support for case insensitive url matching ([642d5247](https://github.com/angular-ui/ui-router/commit/642d524799f604811e680331002feec7199a1fb5))\n* **uiSref:** add support for transition options ([2ed7a728](https://github.com/angular-ui/ui-router/commit/2ed7a728cee6854b38501fbc1df6139d3de5b28a))\n* **uiView:** add controllerAs config with function ([1ee7334a](https://github.com/angular-ui/ui-router/commit/1ee7334a73efeccc9b95340e315cdfd59944762d))\n\n\n### 0.2.9 (2014-01-17)\n\n\nThis release is identical to 0.2.8. 0.2.8 was re-tagged in git to fix a problem with bower.\n\n\n### 0.2.8 (2014-01-16)\n\n\n#### Bug Fixes\n\n* **$state:** allow null to be passed as 'params' param ([094dc30e](https://github.com/angular-ui/ui-router/commit/094dc30e883e1bd14e50a475553bafeaade3b178))\n* **$state.go:** param inheritance shouldn't inherit from siblings ([aea872e0](https://github.com/angular-ui/ui-router/commit/aea872e0b983cb433436ce5875df10c838fccedb))\n* **bower.json:** fixes bower.json ([eed3cc4d](https://github.com/angular-ui/ui-router/commit/eed3cc4d4dfef1d3ef84b9fd063127538ebf59d3))\n* **uiSrefActive:** annotate controller injection ([85921422](https://github.com/angular-ui/ui-router/commit/85921422ff7fb0effed358136426d616cce3d583), closes [#671](https://github.com/angular-ui/ui-router/issues/671))\n* **uiView:**\n  * autoscroll tests pass on 1.2.4 & 1.1.5 ([86eacac0](https://github.com/angular-ui/ui-router/commit/86eacac09ca5e9000bd3b9c7ba6e2cc95d883a3a))\n  * don't animate initial load ([83b6634d](https://github.com/angular-ui/ui-router/commit/83b6634d27942ca74766b2b1244a7fc52c5643d9))\n  * test pass against 1.0.8 and 1.2.4 ([a402415a](https://github.com/angular-ui/ui-router/commit/a402415a2a28b360c43b9fe8f4f54c540f6c33de))\n  * it should autoscroll when expr is missing. ([8bb9e27a](https://github.com/angular-ui/ui-router/commit/8bb9e27a2986725f45daf44c4c9f846385095aff))\n\n\n#### Features\n\n* **uiSref:** add target attribute behaviour ([c12bf9a5](https://github.com/angular-ui/ui-router/commit/c12bf9a520d30d70294e3d82de7661900f8e394e))\n* **uiView:**\n  * merge autoscroll expression test. ([b89e0f87](https://github.com/angular-ui/ui-router/commit/b89e0f871d5cc35c10925ede986c10684d5c9252))\n  * cache and test autoscroll expression ([ee262282](https://github.com/angular-ui/ui-router/commit/ee2622828c2ce83807f006a459ac4e11406d9258))\n"
  },
  {
    "path": "CONTRIBUTING.md",
    "content": "\n# Report an Issue\n\nHelp us make UI-Router better! If you think you might have found a bug, or some other weirdness, start by making sure\nit hasn't already been reported. You can [search through existing issues](https://github.com/angular-ui/ui-router/search?q=wat%3F&type=Issues)\nto see if someone's reported one similar to yours.\n\nIf not, then [create a plunkr](http://bit.ly/UIR-Plunk) that demonstrates the problem (try to use as little code\nas possible: the more minimalist, the faster we can debug it).\n\nNext, [create a new issue](https://github.com/angular-ui/ui-router/issues/new) that briefly explains the problem,\nand provides a bit of background as to the circumstances that triggered it. Don't forget to include the link to\nthat plunkr you created!\n\n**Note**: If you're unsure how a feature is used, or are encountering some unexpected behavior that you aren't sure\nis a bug, it's best to talk it out on\n[StackOverflow](http://stackoverflow.com/questions/ask?tags=angularjs,angular-ui-router) before reporting it. This\nkeeps development streamlined, and helps us focus on building great software.\n\n\nIssues only! |\n-------------|\nPlease keep in mind that the issue tracker is for *issues*. Please do *not* post an issue if you need help or support. Instead, see one of the above-mentioned forums or [IRC](irc://irc.freenode.net/#angularjs). |\n\n#### Purple Labels\nA purple label means that **you** need to take some further action.\n - ![Not Actionable - Need Info](https://angular-ui.github.io/ui-router/ngdoc_assets/incomplete.png): Your issue is not specific enough, or there is no clear action that we can take. Please clarify and refine your issue.\n - ![Plunkr Please](https://angular-ui.github.io/ui-router/ngdoc_assets/example.png): Please [create a plunkr](http://bit.ly/UIR-Plunk)\n - ![StackOverflow](https://angular-ui.github.io/ui-router/ngdoc_assets/so.png): We suspect your issue is really a help request, or could be answered by the community.  Please ask your question on [StackOverflow](http://stackoverflow.com/questions/ask?tags=angularjs,angular-ui-router).  If you determine that is an actual issue, please explain why.\n\nIf your issue gets labeled with purple label, no further action will be taken until you respond to the label appropriately.\n\n# Contribute\n\n**(1)** See the **[Developing](#developing)** section below, to get the development version of UI-Router up and running on your local machine.\n\n**(2)** Check out the [roadmap](https://github.com/angular-ui/ui-router/milestones) to see where the project is headed, and if your feature idea fits with where we're headed.\n\n**(3)** If you're not sure, [open an RFC](https://github.com/angular-ui/ui-router/issues/new?title=RFC:%20My%20idea) to get some feedback on your idea.\n\n**(4)** Finally, commit some code and open a pull request. Code & commits should abide by the following rules:\n\n- *Always* have test coverage for new features (or regression tests for bug fixes), and *never* break existing tests\n- Commits should represent one logical change each; if a feature goes through multiple iterations, squash your commits down to one\n- Make sure to follow the [Angular commit message format](https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md#commit-message-format) so your change will appear in the changelog of the next release.\n- Changes should always respect the coding style of the project\n\n\n\n# Developing\n\nUI-Router uses <code>npm</code> and <code>Rollup</code>.\n\n## Fetch the source code\n\nThe code for Angular UI-Router is split into two source repositories:\n\n* [UI-Router Core](https://github.com/ui-router/core) (`@uirouter/core` on npm)\n* [UI-Router for Angular 1](https://github.com/angular-ui/ui-router) (`@ui-router/angularjs` on npm)\n\nClone both repositories into directories next to each other.\n\n```\nmkdir uirouter\ncd uirouter\ngit clone https://github.com/angular-ui/ui-router.git angularjs\ngit clone https://github.com/ui-router/core.git core\n```\n\n## Install dependencies\n\nUse `npm` to install the development dependencies for each repository.\n\n```\ncd core\nnpm install\ncd ../angularjs\nnpm install\ncd ..\n```\n\n## Link the directories\n\nThis step is necessary if you need to modify any code in `@uirouter/core`.\nUsing `npm`, link `@uirouter/core` into `@uirouter/angularjs`\n\n```\ncd core\nnpm link\ncd ../angularjs\nnpm link '@uirouter/core'\n```\n\nAfter executing these steps, `@uirouter/angularjs` will be depend on your local copy of `@uirouter/core` instead of the version listed in `package.json`.\n\n## Develop\n\nThese scripts may be run in the `angularjs` directory:\n\n* `npm run build`: Compiles TypeScript source\n* `npm run package`: Compiles TypeScript source and creates the Rollup bundles.\n* `npm test`: Runs the test suite (against Angular 1.2 through 1.5).\n* `npm run watch`: Continuously compiles the source and runs the test suite (when either source or tests change).\n\nScripts of the same name (in the `core` directory) can be used.\n\n* `npm run build`: Compiles `@uirouter/core` TypeScript source\n* `npm test`: Runs the `@uirouter/core` test suite\n* `npm run watch`: Continuously compiles the source and runs the `@uirouter/core` test suite (when core source or tests change).\n\nIf you've followed the [linking instructions](#link-the-directories), it's useful to run both\n`npm run watch` tasks (each task from `@uirouter/core` *and* `@uirouter/angularjs`).\nThis ensures that changes to either `@uirouter/core` and `@uirouter/angularjs` compile successfully and are run against their test suites.\n"
  },
  {
    "path": "DOCS.md",
    "content": "# [UI Router for Angular 1](https://ui-router.github.io/ng1/docs/latest)\n\n#### The de-facto solution to flexible routing in angular 1\n\n<div style=\"display: flex;\">\n\n<iframe style=\"display: inline-block;\" src=\"https://ghbtns.com/github-btn.html?user=angular-ui&repo=ui-router&type=fork&count=true&size=medium\" frameborder=\"0\" scrolling=\"0\" width=\"110px\" height=\"20px\"></iframe>\n<iframe style=\"display: inline-block;\" src=\"https://ghbtns.com/github-btn.html?user=angular-ui&repo=ui-router&type=star&count=true&size=medium\" frameborder=\"0\" scrolling=\"0\" width=\"110px\" height=\"20px\"></iframe>\n[![Build Status](https://travis-ci.org/angular-ui/ui-router.svg?branch=master)](https://travis-ci.org/angular-ui/ui-router)\n\n</div>\n\n\nAngular UI-Router is a client-side [Single Page Application](https://en.wikipedia.org/wiki/Single-page_application) \nrouting framework for [AngularJS](http://angularjs.org).  \n\n**[View on Github](http://github.com/angular-ui/ui-router) |**\n**[Tutorials](https://ui-router.github.io/ng1/tutorials/)** |\n**[Guides](https://ui-router.github.io/guide) |**\n**[Sample App](http://ui-router.github.io/resources/sampleapp/) |**\n**[Wiki](https://github.com/angular-ui/ui-router/wiki) |**\n**[FAQ](https://github.com/angular-ui/ui-router/wiki/Frequently-Asked-Questions)**\n  \n#### API Documentation Organization\n\nThe documentation is arranged according to API concern, such as `url`, `resolve`, and `core`.\nFor a list of services and objects that can be injectable, see the [`injectables` section](./injectables.html).\n\nBy default, only the public UI-Router API is shown.\nTo view both public API and the internal APIs, check the \"Internal UI-Router API\" checkbox.\n  \n#### Typescript\n\nUI-Router is written in Typescript.\nThe API documentation is generated using [TypeDoc](https://github.com/TypeStrong/typedoc).\nThe documentation reflects the Typescript classes, interfaces, and parameter types information embedded in the source code.\n\n#### Contributing\n\nAngular UI-Router depends on the framework agnostic `@uirouter/core`.\nTo contribute to the documentation, please submit a PR to either \n[@uirouter/angularjs](http://github.com/angular-ui/ui-router)\nor\n[@uirouter/core](http://github.com/ui-router/core).\nTo find where a specific piece of documentation is written, follow the links that say:\n > _Defined in ui-router/somedir/somefile.ts_\n\n\n"
  },
  {
    "path": "ISSUE_TEMPLATE.md",
    "content": "This issue tracker is for Bug Reports and Feature Requests only.\n\nPlease direct requests for help to StackOverflow.\nSee http://bit.ly/UIR-SOF for details.\n\nThis is a (check one box):\n\n- [ ] Bug Report\n- [ ] Feature Request\n- [ ] General Query \n\nMy version of UI-Router is: (type version)\n\n\n\n# Bug Report\n\n#### Current Behavior:\n\n(type current behavior here)\n\n#### Expected Behavior:\n\n(type expected behavior here)\n\n#### Link to Plunker or stackblitz that reproduces the issue:\n\n( if you want a response to your issue, provide a way to reproduce it )\n( http://bit.ly/UIR-Plunk1 )\n( https://stackblitz.com/edit/ui-router-angularjs )\n\n\n\n\n# Feature Request\n\n(type feature request here)\n\n\n\n\n# General Query\n\nPlease direct general implementation questions to StackOverflow: \nhttp://stackoverflow.com/questions/ask?tags=angularjs,angular-ui-router\n\nPlease review the Sample Application which highlights common approaches:\nhttps://github.com/ui-router/sample-app-angularjs\n\n- [ ] I have already asked my question on StackOverflow and nobody could answer the question\n\n- [ ] I have already reviewed the sample application for examples of common approaches\n\n- [ ] I believe my question can only be answered by the UI-Router maintainers\n\n\n(type general query here)\n"
  },
  {
    "path": "LICENSE",
    "content": "The MIT License\n\nCopyright (c) 2013-2018 The AngularUI Team, Karsten Sperling\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE.\n"
  },
  {
    "path": "README.md",
    "content": "# AngularUI Router &nbsp;[![Build Status](https://github.com/angular-ui/ui-router/workflows/CI:%20UIRouter%20for%20AngularJS/badge.svg)](https://github.com/angular-ui/ui-router/actions?query=workflow%3A%22CI%3A+UIRouter+for+AngularJS%22)\n\n**Note: this is the Angular 1.x source for UI-Router version 1.x.  If you are looking for the source for UI-Router \nversion 0.x, it can be found [here](https://github.com/angular-ui/ui-router/tree/legacy)**\n\n---\n\n\n#### The de-facto solution to flexible routing in angular\n---\n**[Tutorials](https://ui-router.github.io/tutorials/)** |\n**[API Docs](https://ui-router.github.io/docs/latest/)** |\n**[Download stable](http://unpkg.com/@uirouter/angularjs@latest/release/angular-ui-router.js)** (or **[Minified](http://unpkg.com/@uirouter/angularjs@latest/release/angular-ui-router.min.js)**) **|**\n**[Guide](https://ui-router.github.io/guide/) |**\n**[Sample App](http://ui-router.github.io/resources/sampleapp/) |**\n**[FAQ](https://github.com/angular-ui/ui-router/wiki/Frequently-Asked-Questions) |**\n**[Report an Issue](https://github.com/angular-ui/ui-router/blob/master/CONTRIBUTING.md#report-an-issue) |**\n**[Contribute](https://github.com/angular-ui/ui-router/blob/master/CONTRIBUTING.md#contribute) |**\n**[Help!](http://stackoverflow.com/questions/ask?tags=angularjs,angular-ui-router) |**\n\n---\n\nAngular UI-Router is a client-side [Single Page Application](https://en.wikipedia.org/wiki/Single-page_application) \nrouting framework for [AngularJS](http://angularjs.org).  \n  \nRouting frameworks for SPAs update the browser's URL as the user navigates through the app.  Conversely, this allows \nchanges to the browser's URL to drive navigation through the app, thus allowing the user to create a bookmark to a \nlocation deep within the SPA.\n\nUI-Router applications are modeled as a hierarchical tree of states. UI-Router provides a \n[*state machine*](https://en.wikipedia.org/wiki/Finite-state_machine) to manage the transitions between those \napplication states in a transaction-like manner. \n\n## Get Started\n\n\n- [UI-Router for Angular 1](https://ui-router.github.io/ng1)\n- [UI-Router for Angular 2](https://ui-router.github.io/ng2)\n- [UI-Router for React](https://ui-router.github.io/react)\n\n## Resources\n\n* [In-Depth Guide](https://github.com/angular-ui/ui-router/wiki)\n* [Slides comparing ngRoute to ui-router](http://slid.es/timkindberg/ui-router#/)\n* [UI-Router Extras / Addons for legacy (0.x)](http://christopherthielen.github.io/ui-router-extras/#/home) (@christopherthielen)\n \n### Videos\n\n* [Introduction Video](https://egghead.io/lessons/angularjs-introduction-ui-router) (egghead.io)\n* [Tim Kindberg on Angular UI-Router](https://www.youtube.com/watch?v=lBqiZSemrqg)\n* [Activating States](https://egghead.io/lessons/angularjs-ui-router-activating-states) (egghead.io)\n* [Learn Angular.js using UI-Router](http://youtu.be/QETUuZ27N0w) (LearnCode.academy)\n\n## Reporting issues and Contributing\n\nPlease read our [Contributor guidelines](CONTRIBUTING.md) before reporting an issue or creating a pull request.\n"
  },
  {
    "path": "artifacts.json",
    "content": "{\n  \"ARTIFACTS\": [\"lib\", \"lib-esm\", \"release\", \"package.json\"]\n}\n"
  },
  {
    "path": "bower.json",
    "content": "{\n  \"name\": \"angular-ui-router\",\n  \"description\": \"State-based routing for AngularJS\",\n  \"license\": \"MIT\",\n  \"main\": \"./release/angular-ui-router.js\",\n  \"dependencies\": {\n    \"angular\": \">= 1.2.0\"\n  },\n  \"ignore\": [\n    \"**/.*\",\n    \"**/tsconfig.json\",\n    \"**/tsconfig.typedoc.json\",\n    \"**/webpack.config.js\",\n    \"**/node_modules\",\n    \"package.json\",\n    \"scripts\",\n    \"test\",\n    \"src\"\n  ],\n  \"version\": \"1.0.30\"\n}"
  },
  {
    "path": "downstream_projects.json",
    "content": "{\n  \"typescript\": {\n    \"typescript3.9\": \"./test/typescript/3.9\"\n  },\n  \"sample-app-angularjs\": \"https://github.com/ui-router/sample-app-angularjs.git\"\n}\n"
  },
  {
    "path": "jest.config.js",
    "content": "const NG = process.env.NG || '1.7';\n\nconsole.log(`Testing with AngularJS ${NG}`);\n\nmodule.exports = {\n  preset: 'ts-jest',\n  testEnvironment: 'jsdom',\n  roots: ['src', 'test'],\n  testMatch: ['**/__tests__/**/*.[jt]s?(x)', '**/?(*.)+(spec|test).[jt]s?(x)', '**/?*Spec.[jt]s'],\n  setupFilesAfterEnv: ['./test/jest.init.ts'],\n  moduleNameMapper: {\n    '^angular$': '<rootDir>/test/angular/jest-angular.js',\n    '^jest-angular-import$': `<rootDir>/test/angular/${NG}/angular.js`,\n    '^angular-animate$': `<rootDir>/test/angular/${NG}/angular-animate.js`,\n    '^angular-mocks$': `<rootDir>/test/angular/${NG}/angular-mocks.js`,\n  },\n};\n"
  },
  {
    "path": "karma.conf.js",
    "content": "// Karma configuration file\nvar karma = require('karma');\nvar ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');\nvar DEFAULT_NG_VERSION = '1.6';\n\n/**\n * This returns a Karma 'files configuration'.\n * http://karma-runner.github.io/0.8/config/files.html\n *\n * Specifies which files can be served by the Karma web server\n *\n * included: true -- files that are always served to the browser (like <script> tag)\n * included: false -- files *available to be served* by karma, for instance via require()\n */\nfunction karmaServedFiles(ngVersion) {\n  // Returns necessary files for a specific version of angular\n  function angular(version) {\n    console.log('Using Angular ' + ngVersion + ' from test/angular/' + version + '/angular.js');\n\n    return [\n      'test/angular/' + version + '/angular.js',\n      'test/angular/' + version + '/angular-mocks.js',\n      'test/angular/' + version + '/angular-animate.js',\n    ];\n  }\n\n  var angularFiles = angular(ngVersion).map(function (pattern) {\n    return { watched: false, included: true, nocache: true, pattern: pattern };\n  });\n\n  return angularFiles.concat('test/index.js');\n}\n\nmodule.exports = function (config) {\n  var ngVersion = config.ngversion || DEFAULT_NG_VERSION;\n\n  config.set({\n    singleRun: true,\n    autoWatch: false,\n    autoWatchInterval: 0,\n\n    // level of logging\n    // possible values: LOG_DISABLE, LOG_ERROR, LOG_WARN, LOG_INFO, LOG_DEBUG\n    logLevel: 'warn',\n\n    reporters: ['super-dots', 'mocha'],\n    colors: true,\n    mochaReporter: {\n      output: 'minimal',\n    },\n\n    port: 8080,\n\n    // base path, that will be used to resolve files and exclude\n    basePath: '.',\n\n    // Start these browsers, currently available:\n    // Chrome, ChromeCanary, Firefox, Opera, Safari, PhantomJS\n    browsers: ['ChromeHeadlessNoSandbox'],\n    customLaunchers: {\n      ChromeHeadlessNoSandbox: { base: 'ChromeHeadless', flags: ['--no-sandbox'] },\n    },\n\n    frameworks: ['jasmine'],\n\n    plugins: [\n      require('karma-webpack'),\n      require('karma-sourcemap-loader'),\n      require('karma-super-dots-reporter'),\n      require('karma-mocha-reporter'),\n      require('karma-jasmine'),\n      require('karma-chrome-launcher'),\n    ],\n\n    webpack: {\n      mode: 'development',\n      resolve: {\n        modules: ['node_modules'],\n        extensions: ['.js', '.jsx', '.ts', '.tsx'],\n      },\n\n      devtool: 'inline-source-map',\n\n      module: {\n        rules: [{ test: /\\.tsx?$/, loader: 'ts-loader', options: { transpileOnly: true } }],\n      },\n\n      plugins: [new ForkTsCheckerWebpackPlugin()],\n\n      externals: ['angular'],\n    },\n\n    webpackMiddleware: {\n      stats: 'minimal',\n    },\n\n    /* Files *available to be served* by karma, i.e., anything that will be require()'d */\n    files: karmaServedFiles(ngVersion),\n\n    preprocessors: {\n      'test/index.js': ['webpack', 'sourcemap'],\n      '../src/ng1': ['webpack', 'sourcemap'],\n    },\n  });\n};\n"
  },
  {
    "path": "package.json",
    "content": "{\n  \"name\": \"@uirouter/angularjs\",\n  \"description\": \"State-based routing for AngularJS 1.x\",\n  \"version\": \"1.1.2\",\n  \"scripts\": {\n    \"clean\": \"shx rm -rf lib lib-esm _doc build release *.log\",\n    \"compile\": \"tsc && tsc -m es6 --outDir lib-esm && npm run fixdts\",\n    \"fixdts\": \"dts-downlevel 'lib/**/*.d.ts' 'lib-esm/**/*.d.ts'\",\n    \"fixmaps:lib\": \"tweak_sourcemap_paths -a --include 'lib/**/*.js.map' 'lib-esm/**/*.js.map'\",\n    \"fixmaps:bundle\": \"tweak_sourcemap_paths -a --include 'release/**/*.js.map'\",\n    \"build\": \"npm run clean && npm run compile && npm run bundle && npm run fixmaps:lib && npm run fixmaps:bundle\",\n    \"lint\": \"eslint src/**/*.ts\",\n    \"package\": \"npm run build\",\n    \"bundle\": \"npm run bundle_router && npm run bundle_monolithic_router && npm run bundle_events && npm run bundle_resolve\",\n    \"bundle_monolithic_router\": \"rollup -c --environment ROUTER,MONOLITHIC  && rollup -c --environment ROUTER,MINIFY,MONOLITHIC\",\n    \"bundle_router\": \"rollup -c --environment ROUTER  && rollup -c --environment ROUTER,MINIFY\",\n    \"bundle_events\": \"rollup -c --environment EVENTS  && rollup -c --environment EVENTS,MINIFY\",\n    \"bundle_resolve\": \"rollup -c --environment RESOLVE && rollup -c --environment RESOLVE,MINIFY\",\n    \"test\": \"tsc && NG=1.7 jest && NG=1.6 jest && NG=1.5 jest && NG=1.4 jest && NG=1.3 jest && NG=1.2 jest\",\n    \"test:debug\": \"node --inspect ./node_modules/.bin/jest --runInBand --watch\",\n    \"test:ng12\": \"NG=1.2 jest\",\n    \"test:ng13\": \"NG=1.3 jest\",\n    \"test:ng14\": \"NG=1.4 jest\",\n    \"test:ng15\": \"NG=1.5 jest\",\n    \"test:ng16\": \"NG=1.6 jest\",\n    \"test:ng17\": \"NG=1.7 jest\",\n    \"test:downstream\": \"test_downstream_projects\",\n    \"watch\": \"jest --watch\",\n    \"debug\": \"npm run test:debug\",\n    \"docs\": \"generate_docs\",\n    \"docs:publish\": \"generate_docs && publish_docs\",\n    \"release\": \"release --deps @uirouter/core && node ./scripts/npm_angular_ui_router_release.js && node ./scripts/bower_release.js\",\n    \"prepublishOnly\": \"npm run build\",\n    \"artifacts\": \"artifact_tagging\"\n  },\n  \"homepage\": \"https://ui-router.github.io\",\n  \"contributors\": [\n    {\n      \"name\": \"Nate Abele\",\n      \"email\": \"nate@radify.io\",\n      \"web\": \"https://radify.io\"\n    },\n    {\n      \"name\": \"Chris Thielen\",\n      \"web\": \"https://github.com/christopherthielen\"\n    },\n    {\n      \"name\": \"Tim Kindberg\",\n      \"web\": \"https://github.com/timkindberg\"\n    },\n    {\n      \"name\": \"Karsten Sperling\",\n      \"web\": \"https://github.com/ksperling\"\n    }\n  ],\n  \"maintainers\": [\n    {\n      \"name\": \"UIRouter Team\",\n      \"web\": \"https://github.com/ui-router?tab=members\"\n    }\n  ],\n  \"repository\": {\n    \"type\": \"git\",\n    \"url\": \"https://github.com/angular-ui/ui-router.git\"\n  },\n  \"bugs\": {\n    \"url\": \"https://github.com/angular-ui/ui-router/issues\"\n  },\n  \"engines\": {\n    \"node\": \">=4.0.0\"\n  },\n  \"license\": \"MIT\",\n  \"main\": \"release/ui-router-angularjs.js\",\n  \"jsnext:main\": \"lib-esm/index.js\",\n  \"module\": \"lib-esm/index.js\",\n  \"typings\": \"lib/index.d.ts\",\n  \"peerDependencies\": {\n    \"@uirouter/core\": \"^6.1.2\",\n    \"angular\": \">=1.2.0\"\n  },\n  \"devDependencies\": {\n    \"@types/angular\": \"1.6.57\",\n    \"@types/angular-animate\": \"^1.5.10\",\n    \"@types/angular-mocks\": \"^1.7.0\",\n    \"@types/jest\": \"^26.0.5\",\n    \"@typescript-eslint/eslint-plugin\": \"^3.7.0\",\n    \"@typescript-eslint/parser\": \"^3.7.0\",\n    \"@uirouter/core\": \"^6.1.2\",\n    \"@uirouter/publish-scripts\": \"^2.6.4\",\n    \"angular\": \"1.8.0\",\n    \"dts-downlevel\": \"^0.4.0\",\n    \"eslint\": \"^7.5.0\",\n    \"eslint-config-prettier\": \"^6.11.0\",\n    \"husky\": \"^4.2.5\",\n    \"jest\": \"^26.0.1\",\n    \"lodash\": \"^4.17.19\",\n    \"prettier\": \"^2.0.5\",\n    \"pretty-quick\": \"^2.0.1\",\n    \"rollup\": \"^2.22.1\",\n    \"rollup-plugin-node-resolve\": \"^5.2.0\",\n    \"rollup-plugin-sourcemaps\": \"^0.6.2\",\n    \"rollup-plugin-terser\": \"^6.1.0\",\n    \"ts-jest\": \"^26.0.0\",\n    \"typescript\": \"^3.9.7\"\n  },\n  \"husky\": {\n    \"hooks\": {\n      \"pre-commit\": \"pretty-quick --staged\"\n    }\n  },\n  \"docgen\": {\n    \"publishDir\": \"_ng1_docs\",\n    \"navigation\": {\n      \"\": [\n        \"UIRouter\"\n      ],\n      \"Services\": [\n        \"StateService\",\n        \"StateRegistry\",\n        \"TransitionService\",\n        \"UrlService\",\n        \"UrlConfig\",\n        \"UrlRules\"\n      ],\n      \"Interfaces\": [\n        \"Ng1StateDeclaration\"\n      ],\n      \"Components\": [\n        \"uiView\",\n        \"UISref\",\n        \"UISrefActive\",\n        \"uiStateDirective\"\n      ],\n      \"Other\": [\n        \"Transition\",\n        \"Trace\"\n      ]\n    },\n    \"include\": [\n      {\n        \"pkg\": \"@uirouter/core\",\n        \"repo\": \"https://github.com/ui-router/core\",\n        \"branch\": \"master\"\n      }\n    ]\n  },\n  \"packageManager\": \"yarn@1.22.22+sha1.ac34549e6aa8e7ead463a7407e1c7390f61a6610\"\n}\n"
  },
  {
    "path": "rollup.config.js",
    "content": "import nodeResolve from 'rollup-plugin-node-resolve';\nimport { terser } from 'rollup-plugin-terser';\nimport sourcemaps from 'rollup-plugin-sourcemaps';\n\nconst MINIFY = process.env.MINIFY;\nconst MONOLITHIC = process.env.MONOLITHIC;\nconst ROUTER = process.env.ROUTER;\nconst EVENTS = process.env.EVENTS;\nconst RESOLVE = process.env.RESOLVE;\n\nconst pkg = require('./package.json');\nlet banner = `/**\n * ${pkg.description}`;\nif (ROUTER && MONOLITHIC) {\n  banner += `\n * NOTICE: This monolithic bundle also bundles the @uirouter/core code.\n *         This causes it to be incompatible with plugins that depend on @uirouter/core.\n *         We recommend switching to the ui-router-core.js and ui-router-angularjs.js bundles instead.\n *         For more information, see https://ui-router.github.io/blog/uirouter-for-angularjs-umd-bundles`;\n} else if (ROUTER) {\n  banner += `\n * This bundle requires the ui-router-core.js bundle from the @uirouter/core package.`;\n}\nbanner += `\n * @version v${pkg.version}\n * @link ${pkg.homepage}\n * @license MIT License, http://www.opensource.org/licenses/MIT\n */`;\n\nconst terserOpts = { output: {} };\n// retain multiline comment with @license\nterserOpts.output.comments = (node, comment) => comment.type === 'comment2' && /@license/i.test(comment.value);\n\nconst onwarn = (warning) => {\n  // Suppress this error message... https://github.com/rollup/rollup/wiki/Troubleshooting#this-is-undefined\n  const ignores = ['THIS_IS_UNDEFINED'];\n  if (!ignores.some((code) => code === warning.code)) {\n    console.error(warning.message);\n  }\n};\n\nconst plugins = [nodeResolve({ jsnext: true }), sourcemaps()];\n\nif (MINIFY) plugins.push(terser(terserOpts));\n\nconst extension = MINIFY ? '.min.js' : '.js';\n\nconst BASE_CONFIG = {\n  onwarn: onwarn,\n  plugins: plugins,\n};\n\nconst BASE_OUTPUT = {\n  banner: banner,\n  exports: 'named',\n  format: 'umd',\n  sourcemap: true,\n};\n\nconst ROUTER_CONFIG = Object.assign(\n  {\n    input: 'lib-esm/index.js',\n    external: ['angular', '@uirouter/core'],\n    output: Object.assign(\n      {\n        file: 'release/ui-router-angularjs' + extension,\n        name: '@uirouter/angularjs',\n        globals: { angular: 'angular', '@uirouter/core': '@uirouter/core' },\n      },\n      BASE_OUTPUT\n    ),\n  },\n  BASE_CONFIG\n);\n\n// Also bundles the code from @uirouter/core into the same bundle\nconst MONOLITHIC_ROUTER_CONFIG = Object.assign(\n  {\n    input: 'lib-esm/index.js',\n    external: 'angular',\n    output: Object.assign(\n      {\n        file: 'release/angular-ui-router' + extension,\n        name: '@uirouter/angularjs',\n        globals: { angular: 'angular' },\n      },\n      BASE_OUTPUT\n    ),\n  },\n  BASE_CONFIG\n);\n\nconst EVENTS_CONFIG = Object.assign({}, BASE_CONFIG, {\n  input: 'lib-esm/legacy/stateEvents.js',\n  external: ['angular', '@uirouter/core'],\n  output: Object.assign(\n    {\n      file: 'release/stateEvents' + extension,\n      name: '@uirouter/angularjs-state-events',\n      globals: { angular: 'angular', '@uirouter/core': '@uirouter/core' },\n    },\n    BASE_OUTPUT\n  ),\n});\n\nconst RESOLVE_CONFIG = Object.assign({}, BASE_CONFIG, {\n  input: 'lib-esm/legacy/resolveService.js',\n  external: ['angular', '@uirouter/core'],\n  output: Object.assign(\n    {\n      file: 'release/resolveService' + extension,\n      name: '@uirouter/angularjs-resolve-service',\n      globals: { angular: 'angular', '@uirouter/core': '@uirouter/core' },\n    },\n    BASE_OUTPUT\n  ),\n});\n\nconst CONFIG = RESOLVE\n  ? RESOLVE_CONFIG\n  : EVENTS\n  ? EVENTS_CONFIG\n  : MONOLITHIC\n  ? MONOLITHIC_ROUTER_CONFIG\n  : ROUTER\n  ? ROUTER_CONFIG\n  : ROUTER_CONFIG;\n\nexport default CONFIG;\n"
  },
  {
    "path": "scripts/bower_release.js",
    "content": "#!env node\n\"use strict\";\nconst fs = require('fs');\nconst path = require('path');\nconst util = require('@uirouter/publish-scripts/util');\nconst version = require('../package.json').version;\nconst _exec = util._exec;\n\nutil.packageDir();\nconst bowerPath = path.resolve(__dirname, '..', 'bower.json');\nconst bower = JSON.parse(fs.readFileSync(bowerPath));\nutil.ensureCleanMaster('master');\n\n// update bower.json and push\nbower.version = version;\nfs.writeFileSync(bowerPath, JSON.stringify(bower, null, 2));\n_exec(`git commit -m 'chore(bower): Update bower.json' bower.json`);\n_exec(`git push`);\n\n// branch, add/commit release files, and push to bower repository\n_exec(`git checkout -b bower-${version}`);\n_exec(`git add --force release`);\n_exec(`git commit -m \"bower release ${version}\"`);\n_exec(`git tag ${version}+bower`);\n_exec(`git remote add bower git@github.com:angular-ui/angular-ui-router-bower.git`);\n_exec(`git push bower ${version}+bower:${version}`);\n_exec(`git remote rm bower`);\n_exec(`git checkout master`);\n"
  },
  {
    "path": "scripts/npm_angular_ui_router_release.js",
    "content": "#!env node\n'use strict';\nconst fs = require('fs');\nconst path = require('path');\nconst util = require('@uirouter/publish-scripts/util');\nconst version = require('../package.json').version;\nconst _exec = util._exec;\n\nutil.packageDir();\nconst packagePath = path.resolve(__dirname, '..', 'package.json');\nconst packageJson = JSON.parse(fs.readFileSync(packagePath));\nutil.ensureCleanMaster('master');\npackageJson.name = 'angular-ui-router';\nfs.writeFileSync(packagePath, JSON.stringify(packageJson, null, 2));\n\n_exec(`npm publish`);\n_exec(`git checkout package.json`);\n"
  },
  {
    "path": "src/angular.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport * as ng_from_import from 'angular';\n/** @hidden */ declare let angular;\n/** @hidden */ const ng_from_global = angular;\n/** @hidden */ export const ng = ng_from_import && ng_from_import.module ? ng_from_import : ng_from_global;\n"
  },
  {
    "path": "src/directives/stateDirectives.ts",
    "content": "/* eslint-disable @typescript-eslint/no-empty-interface */\n/* eslint-disable prefer-const */\n/**\n * # Angular 1 Directives\n *\n * These are the directives included in UI-Router for Angular 1.\n * These directives are used in templates to create viewports and link/navigate to states.\n *\n * @preferred @publicapi @module directives\n */ /** */\nimport { ng as angular } from '../angular';\nimport { IAugmentedJQuery, ITimeoutService, IScope, IInterpolateService } from 'angular';\n\nimport {\n  Obj,\n  extend,\n  forEach,\n  tail,\n  isString,\n  isObject,\n  isArray,\n  parse,\n  noop,\n  unnestR,\n  identity,\n  uniqR,\n  inArray,\n  removeFrom,\n  RawParams,\n  PathNode,\n  StateOrName,\n  StateService,\n  StateDeclaration,\n  UIRouter,\n} from '@uirouter/core';\nimport { UIViewData } from './viewDirective';\n\n/** @hidden Used for typedoc */\nexport interface ng1_directive {}\n\n/** @hidden */\nfunction parseStateRef(ref: string) {\n  const paramsOnly = ref.match(/^\\s*({[^}]*})\\s*$/);\n  if (paramsOnly) ref = '(' + paramsOnly[1] + ')';\n\n  const parsed = ref.replace(/\\n/g, ' ').match(/^\\s*([^(]*?)\\s*(\\((.*)\\))?\\s*$/);\n  if (!parsed || parsed.length !== 4) throw new Error(\"Invalid state ref '\" + ref + \"'\");\n  return { state: parsed[1] || null, paramExpr: parsed[3] || null };\n}\n\n/** @hidden */\nfunction stateContext(el: IAugmentedJQuery) {\n  const $uiView: UIViewData = (el.parent() as IAugmentedJQuery).inheritedData('$uiView');\n  const path: PathNode[] = parse('$cfg.path')($uiView);\n  return path ? tail(path).state.name : undefined;\n}\n\n/** @hidden */\nfunction processedDef($state: StateService, $element: IAugmentedJQuery, def: Def): Def {\n  const uiState = def.uiState || $state.current.name;\n  const uiStateOpts = extend(defaultOpts($element, $state), def.uiStateOpts || {});\n  const href = $state.href(uiState, def.uiStateParams, uiStateOpts);\n  return { uiState, uiStateParams: def.uiStateParams, uiStateOpts, href };\n}\n\n/** @hidden */\ninterface TypeInfo {\n  attr: string;\n  isAnchor: boolean;\n  clickable: boolean;\n}\n\n/** @hidden */\nfunction getTypeInfo(el: IAugmentedJQuery): TypeInfo {\n  // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n  const isSvg = Object.prototype.toString.call(el.prop('href')) === '[object SVGAnimatedString]';\n  const isForm = el[0].nodeName === 'FORM';\n\n  return {\n    attr: isForm ? 'action' : isSvg ? 'xlink:href' : 'href',\n    isAnchor: el.prop('tagName').toUpperCase() === 'A',\n    clickable: !isForm,\n  };\n}\n\n/** @hidden */\nfunction clickHook(\n  el: IAugmentedJQuery,\n  $state: StateService,\n  $timeout: ITimeoutService,\n  type: TypeInfo,\n  getDef: () => Def\n) {\n  return function (e: JQueryMouseEventObject) {\n    const button = e.which || e.button,\n      target = getDef();\n\n    if (!(button > 1 || e.ctrlKey || e.metaKey || e.shiftKey || e.altKey || el.attr('target'))) {\n      // HACK: This is to allow ng-clicks to be processed before the transition is initiated:\n      const transition = $timeout(function () {\n        if (!el.attr('disabled')) {\n          $state.go(target.uiState, target.uiStateParams, target.uiStateOpts);\n        }\n      });\n      e.preventDefault();\n\n      // if the state has no URL, ignore one preventDefault from the <a> directive.\n      let ignorePreventDefaultCount = type.isAnchor && !target.href ? 1 : 0;\n\n      e.preventDefault = function () {\n        if (ignorePreventDefaultCount-- <= 0) $timeout.cancel(transition);\n      };\n    }\n  };\n}\n\n/** @hidden */\nfunction defaultOpts(el: IAugmentedJQuery, $state: StateService) {\n  return {\n    relative: stateContext(el) || $state.$current,\n    inherit: true,\n    source: 'sref',\n  };\n}\n\n/** @hidden */\nfunction bindEvents(element: IAugmentedJQuery, scope: IScope, hookFn: EventListener, uiStateOpts: any): void {\n  let events;\n\n  if (uiStateOpts) {\n    events = uiStateOpts.events;\n  }\n\n  if (!isArray(events)) {\n    events = ['click'];\n  }\n\n  const on = element.on ? 'on' : 'bind';\n  for (const event of events) {\n    element[on](event, hookFn);\n  }\n\n  scope.$on('$destroy', function () {\n    const off = element.off ? 'off' : 'unbind';\n    for (const event of events) {\n      element[off](event, hookFn as any);\n    }\n  });\n}\n\n/**\n * `ui-sref`: A directive for linking to a state\n *\n * A directive which links to a state (and optionally, parameters).\n * When clicked, this directive activates the linked state with the supplied parameter values.\n *\n * ### Linked State\n * The attribute value of the `ui-sref` is the name of the state to link to.\n *\n * #### Example:\n * This will activate the `home` state when the link is clicked.\n * ```html\n * <a ui-sref=\"home\">Home</a>\n * ```\n *\n * ### Relative Links\n * You can also use relative state paths within `ui-sref`, just like a relative path passed to `$state.go()` ([[StateService.go]]).\n * You just need to be aware that the path is relative to the state that *created* the link.\n * This allows a state to create a relative `ui-sref` which always targets the same destination.\n *\n * #### Example:\n * Both these links are relative to the parent state, even when a child state is currently active.\n * ```html\n * <a ui-sref=\".child1\">child 1 state</a>\n * <a ui-sref=\".child2\">child 2 state</a>\n * ```\n *\n * This link activates the parent state.\n * ```html\n * <a ui-sref=\"^\">Return</a>\n * ```\n *\n * ### hrefs\n * If the linked state has a URL, the directive will automatically generate and\n * update the `href` attribute (using the [[StateService.href]]  method).\n *\n * #### Example:\n * Assuming the `users` state has a url of `/users/`\n * ```html\n * <a ui-sref=\"users\" href=\"/users/\">Users</a>\n * ```\n *\n * ### Parameter Values\n * In addition to the state name, a `ui-sref` can include parameter values which are applied when activating the state.\n * Param values can be provided in the `ui-sref` value after the state name, enclosed by parentheses.\n * The content inside the parentheses is an expression, evaluated to the parameter values.\n *\n * #### Example:\n * This example renders a list of links to users.\n * The state's `userId` parameter value comes from each user's `user.id` property.\n * ```html\n * <li ng-repeat=\"user in users\">\n *   <a ui-sref=\"users.detail({ userId: user.id })\">{{ user.displayName }}</a>\n * </li>\n * ```\n *\n * Note:\n * The parameter values expression is `$watch`ed for updates.\n *\n * ### Transition Options\n * You can specify [[TransitionOptions]] to pass to [[StateService.go]] by using the `ui-sref-opts` attribute.\n * Options are restricted to `location`, `inherit`, and `reload`.\n *\n * #### Example:\n * ```html\n * <a ui-sref=\"home\" ui-sref-opts=\"{ reload: true }\">Home</a>\n * ```\n *\n * ### Other DOM Events\n *\n * You can also customize which DOM events to respond to (instead of `click`) by\n * providing an `events` array in the `ui-sref-opts` attribute.\n *\n * #### Example:\n * ```html\n * <input type=\"text\" ui-sref=\"contacts\" ui-sref-opts=\"{ events: ['change', 'blur'] }\">\n * ```\n *\n * ### Highlighting the active link\n * This directive can be used in conjunction with [[uiSrefActive]] to highlight the active link.\n *\n * ### Examples\n * If you have the following template:\n *\n * ```html\n * <a ui-sref=\"home\">Home</a>\n * <a ui-sref=\"about\">About</a>\n * <a ui-sref=\"{page: 2}\">Next page</a>\n *\n * <ul>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a ui-sref=\"contacts.detail({ id: contact.id })\">{{ contact.name }}</a>\n *     </li>\n * </ul>\n * ```\n *\n * Then (assuming the current state is `contacts`) the rendered html including hrefs would be:\n *\n * ```html\n * <a href=\"#/home\" ui-sref=\"home\">Home</a>\n * <a href=\"#/about\" ui-sref=\"about\">About</a>\n * <a href=\"#/contacts?page=2\" ui-sref=\"{page: 2}\">Next page</a>\n *\n * <ul>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a href=\"#/contacts/1\" ui-sref=\"contacts.detail({ id: contact.id })\">Joe</a>\n *     </li>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a href=\"#/contacts/2\" ui-sref=\"contacts.detail({ id: contact.id })\">Alice</a>\n *     </li>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a href=\"#/contacts/3\" ui-sref=\"contacts.detail({ id: contact.id })\">Bob</a>\n *     </li>\n * </ul>\n *\n * <a href=\"#/home\" ui-sref=\"home\" ui-sref-opts=\"{reload: true}\">Home</a>\n * ```\n *\n * ### Notes\n *\n * - You can use `ui-sref` to change **only the parameter values** by omitting the state name and parentheses.\n * #### Example:\n * Sets the `lang` parameter to `en` and remains on the same state.\n *\n * ```html\n * <a ui-sref=\"{ lang: 'en' }\">English</a>\n * ```\n *\n * - A middle-click, right-click, or ctrl-click is handled (natively) by the browser to open the href in a new window, for example.\n *\n * - Unlike the parameter values expression, the state name is not `$watch`ed (for performance reasons).\n * If you need to dynamically update the state being linked to, use the fully dynamic [[uiState]] directive.\n */\nlet uiSrefDirective: ng1_directive;\nuiSrefDirective = [\n  '$uiRouter',\n  '$timeout',\n  function $StateRefDirective($uiRouter: UIRouter, $timeout: ITimeoutService) {\n    const $state = $uiRouter.stateService;\n\n    return {\n      restrict: 'A',\n      require: ['?^uiSrefActive', '?^uiSrefActiveEq'],\n      link: function (scope: IScope, element: IAugmentedJQuery, attrs: any, uiSrefActive: any) {\n        const type = getTypeInfo(element);\n        const active = uiSrefActive[1] || uiSrefActive[0];\n        let unlinkInfoFn: Function = null;\n\n        const rawDef = {} as Def;\n        const getDef = () => processedDef($state, element, rawDef);\n\n        const ref = parseStateRef(attrs.uiSref);\n        rawDef.uiState = ref.state;\n        rawDef.uiStateOpts = attrs.uiSrefOpts ? scope.$eval(attrs.uiSrefOpts) : {};\n\n        function update() {\n          const def = getDef();\n          if (unlinkInfoFn) unlinkInfoFn();\n          if (active) unlinkInfoFn = active.$$addStateInfo(def.uiState, def.uiStateParams);\n          if (def.href != null) attrs.$set(type.attr, def.href);\n        }\n\n        if (ref.paramExpr) {\n          scope.$watch(\n            ref.paramExpr,\n            function (val) {\n              rawDef.uiStateParams = extend({}, val);\n              update();\n            },\n            true\n          );\n          rawDef.uiStateParams = extend({}, scope.$eval(ref.paramExpr));\n        }\n\n        update();\n\n        scope.$on('$destroy', <any>$uiRouter.stateRegistry.onStatesChanged(update));\n        scope.$on('$destroy', <any>$uiRouter.transitionService.onSuccess({}, update));\n\n        if (!type.clickable) return;\n        const hookFn = clickHook(element, $state, $timeout, type, getDef);\n        bindEvents(element, scope, hookFn, rawDef.uiStateOpts);\n      },\n    };\n  },\n];\n\n/**\n * `ui-state`: A fully dynamic directive for linking to a state\n *\n * A directive which links to a state (and optionally, parameters).\n * When clicked, this directive activates the linked state with the supplied parameter values.\n *\n * **This directive is very similar to [[uiSref]], but it `$observe`s and `$watch`es/evaluates all its inputs.**\n *\n * A directive which links to a state (and optionally, parameters).\n * When clicked, this directive activates the linked state with the supplied parameter values.\n *\n * ### Linked State\n * The attribute value of `ui-state` is an expression which is `$watch`ed and evaluated as the state to link to.\n * **This is in contrast with `ui-sref`, which takes a state name as a string literal.**\n *\n * #### Example:\n * Create a list of links.\n * ```html\n * <li ng-repeat=\"link in navlinks\">\n *   <a ui-state=\"link.state\">{{ link.displayName }}</a>\n * </li>\n * ```\n *\n * ### Relative Links\n * If the expression evaluates to a relative path, it is processed like [[uiSref]].\n * You just need to be aware that the path is relative to the state that *created* the link.\n * This allows a state to create relative `ui-state` which always targets the same destination.\n *\n * ### hrefs\n * If the linked state has a URL, the directive will automatically generate and\n * update the `href` attribute (using the [[StateService.href]]  method).\n *\n * ### Parameter Values\n * In addition to the state name expression, a `ui-state` can include parameter values which are applied when activating the state.\n * Param values should be provided using the `ui-state-params` attribute.\n * The `ui-state-params` attribute value is `$watch`ed and evaluated as an expression.\n *\n * #### Example:\n * This example renders a list of links with param values.\n * The state's `userId` parameter value comes from each user's `user.id` property.\n * ```html\n * <li ng-repeat=\"link in navlinks\">\n *   <a ui-state=\"link.state\" ui-state-params=\"link.params\">{{ link.displayName }}</a>\n * </li>\n * ```\n *\n * ### Transition Options\n * You can specify [[TransitionOptions]] to pass to [[StateService.go]] by using the `ui-state-opts` attribute.\n * Options are restricted to `location`, `inherit`, and `reload`.\n * The value of the `ui-state-opts` is `$watch`ed and evaluated as an expression.\n *\n * #### Example:\n * ```html\n * <a ui-state=\"returnto.state\" ui-state-opts=\"{ reload: true }\">Home</a>\n * ```\n *\n * ### Other DOM Events\n *\n * You can also customize which DOM events to respond to (instead of `click`) by\n * providing an `events` array in the `ui-state-opts` attribute.\n *\n * #### Example:\n * ```html\n * <input type=\"text\" ui-state=\"contacts\" ui-state-opts=\"{ events: ['change', 'blur'] }\">\n * ```\n *\n * ### Highlighting the active link\n * This directive can be used in conjunction with [[uiSrefActive]] to highlight the active link.\n *\n * ### Notes\n *\n * - You can use `ui-params` to change **only the parameter values** by omitting the state name and supplying only `ui-state-params`.\n *   However, it might be simpler to use [[uiSref]] parameter-only links.\n *\n * #### Example:\n * Sets the `lang` parameter to `en` and remains on the same state.\n *\n * ```html\n * <a ui-state=\"\" ui-state-params=\"{ lang: 'en' }\">English</a>\n * ```\n *\n * - A middle-click, right-click, or ctrl-click is handled (natively) by the browser to open the href in a new window, for example.\n * ```\n */\nlet uiStateDirective: ng1_directive;\nuiStateDirective = [\n  '$uiRouter',\n  '$timeout',\n  function $StateRefDynamicDirective($uiRouter: UIRouter, $timeout: ITimeoutService) {\n    const $state = $uiRouter.stateService;\n\n    return {\n      restrict: 'A',\n      require: ['?^uiSrefActive', '?^uiSrefActiveEq'],\n      link: function (scope: IScope, element: IAugmentedJQuery, attrs: any, uiSrefActive: any) {\n        const type = getTypeInfo(element);\n        const active = uiSrefActive[1] || uiSrefActive[0];\n        let unlinkInfoFn: Function = null;\n        let hookFn;\n\n        const rawDef = {} as Def;\n        const getDef = () => processedDef($state, element, rawDef);\n\n        const inputAttrs = ['uiState', 'uiStateParams', 'uiStateOpts'];\n        const watchDeregFns = inputAttrs.reduce((acc, attr) => ((acc[attr] = noop), acc), {});\n\n        function update() {\n          const def = getDef();\n          if (unlinkInfoFn) unlinkInfoFn();\n          if (active) unlinkInfoFn = active.$$addStateInfo(def.uiState, def.uiStateParams);\n          if (def.href != null) attrs.$set(type.attr, def.href);\n        }\n\n        inputAttrs.forEach((field) => {\n          rawDef[field] = attrs[field] ? scope.$eval(attrs[field]) : null;\n\n          attrs.$observe(field, (expr) => {\n            watchDeregFns[field]();\n            watchDeregFns[field] = scope.$watch(\n              expr,\n              (newval) => {\n                rawDef[field] = newval;\n                update();\n              },\n              true\n            );\n          });\n        });\n\n        update();\n\n        scope.$on('$destroy', <any>$uiRouter.stateRegistry.onStatesChanged(update));\n        scope.$on('$destroy', <any>$uiRouter.transitionService.onSuccess({}, update));\n\n        if (!type.clickable) return;\n        hookFn = clickHook(element, $state, $timeout, type, getDef);\n        bindEvents(element, scope, hookFn, rawDef.uiStateOpts);\n      },\n    };\n  },\n];\n\n/**\n * `ui-sref-active` and `ui-sref-active-eq`: A directive that adds a CSS class when a `ui-sref` is active\n *\n * A directive working alongside [[uiSref]] and [[uiState]] to add classes to an element when the\n * related directive's state is active (and remove them when it is inactive).\n *\n * The primary use-case is to highlight the active link in navigation menus,\n * distinguishing it from the inactive menu items.\n *\n * ### Linking to a `ui-sref` or `ui-state`\n * `ui-sref-active` can live on the same element as `ui-sref`/`ui-state`, or it can be on a parent element.\n * If a `ui-sref-active` is a parent to more than one `ui-sref`/`ui-state`, it will apply the CSS class when **any of the links are active**.\n *\n * ### Matching\n *\n * The `ui-sref-active` directive applies the CSS class when the `ui-sref`/`ui-state`'s target state **or any child state is active**.\n * This is a \"fuzzy match\" which uses [[StateService.includes]].\n *\n * The `ui-sref-active-eq` directive applies the CSS class when the `ui-sref`/`ui-state`'s target state is directly active (not when child states are active).\n * This is an \"exact match\" which uses [[StateService.is]].\n *\n * ### Parameter values\n * If the `ui-sref`/`ui-state` includes parameter values, the current parameter values must match the link's values for the link to be highlighted.\n * This allows a list of links to the same state with different parameters to be rendered, and the correct one highlighted.\n *\n * #### Example:\n * ```html\n * <li ng-repeat=\"user in users\" ui-sref-active=\"active\">\n *   <a ui-sref=\"user.details({ userId: user.id })\">{{ user.lastName }}</a>\n * </li>\n * ```\n *\n * ### Examples\n *\n * Given the following template:\n * #### Example:\n * ```html\n * <ul>\n *   <li ui-sref-active=\"active\" class=\"item\">\n *     <a href ui-sref=\"app.user({user: 'bilbobaggins'})\">@bilbobaggins</a>\n *   </li>\n * </ul>\n * ```\n *\n * When the app state is `app.user` (or any child state),\n * and contains the state parameter \"user\" with value \"bilbobaggins\",\n * the resulting HTML will appear as (note the 'active' class):\n *\n * ```html\n * <ul>\n *   <li ui-sref-active=\"active\" class=\"item active\">\n *     <a ui-sref=\"app.user({user: 'bilbobaggins'})\" href=\"/users/bilbobaggins\">@bilbobaggins</a>\n *   </li>\n * </ul>\n * ```\n *\n * ### Glob mode\n *\n * It is possible to pass `ui-sref-active` an expression that evaluates to an object.\n * The objects keys represent active class names and values represent the respective state names/globs.\n * `ui-sref-active` will match if the current active state **includes** any of\n * the specified state names/globs, even the abstract ones.\n *\n * #### Example:\n * Given the following template, with \"admin\" being an abstract state:\n * ```html\n * <div ui-sref-active=\"{'active': 'admin.**'}\">\n *   <a ui-sref-active=\"active\" ui-sref=\"admin.roles\">Roles</a>\n * </div>\n * ```\n *\n * Arrays are also supported as values in the `ngClass`-like interface.\n * This allows multiple states to add `active` class.\n *\n * #### Example:\n * Given the following template, with \"admin.roles\" being the current state, the class will be added too:\n * ```html\n * <div ui-sref-active=\"{'active': ['owner.**', 'admin.**']}\">\n *   <a ui-sref-active=\"active\" ui-sref=\"admin.roles\">Roles</a>\n * </div>\n * ```\n *\n * When the current state is \"admin.roles\" the \"active\" class will be applied to both the `<div>` and `<a>` elements.\n * It is important to note that the state names/globs passed to `ui-sref-active` override any state provided by a linked `ui-sref`.\n *\n * ### Notes:\n *\n * - The class name is interpolated **once** during the directives link time (any further changes to the\n * interpolated value are ignored).\n *\n * - Multiple classes may be specified in a space-separated format: `ui-sref-active='class1 class2 class3'`\n */\nlet uiSrefActiveDirective: ng1_directive;\nuiSrefActiveDirective = [\n  '$state',\n  '$stateParams',\n  '$interpolate',\n  '$uiRouter',\n  function $StateRefActiveDirective(\n    $state: StateService,\n    $stateParams: Obj,\n    $interpolate: IInterpolateService,\n    $uiRouter: UIRouter\n  ) {\n    return {\n      restrict: 'A',\n      controller: [\n        '$scope',\n        '$element',\n        '$attrs',\n        function ($scope: IScope, $element: IAugmentedJQuery, $attrs: any) {\n          let states: StateData[] = [];\n          let activeEqClass: string;\n          let uiSrefActive: any;\n\n          // There probably isn't much point in $observing this\n          // uiSrefActive and uiSrefActiveEq share the same directive object with some\n          // slight difference in logic routing\n          activeEqClass = $interpolate($attrs.uiSrefActiveEq || '', false)($scope);\n\n          try {\n            uiSrefActive = $scope.$eval($attrs.uiSrefActive);\n          } catch (e) {\n            // Do nothing. uiSrefActive is not a valid expression.\n            // Fall back to using $interpolate below\n          }\n          uiSrefActive = uiSrefActive || $interpolate($attrs.uiSrefActive || '', false)($scope);\n          setStatesFromDefinitionObject(uiSrefActive);\n\n          // Allow uiSref to communicate with uiSrefActive[Equals]\n          this.$$addStateInfo = function (newState: string, newParams: Obj) {\n            // we already got an explicit state provided by ui-sref-active, so we\n            // shadow the one that comes from ui-sref\n            if (isObject(uiSrefActive) && states.length > 0) {\n              return;\n            }\n            const deregister = addState(newState, newParams, uiSrefActive);\n            update();\n            return deregister;\n          };\n\n          function updateAfterTransition(trans) {\n            trans.promise.then(update, noop);\n          }\n          $scope.$on('$destroy', setupEventListeners());\n          if ($uiRouter.globals.transition) {\n            updateAfterTransition($uiRouter.globals.transition);\n          }\n\n          function setupEventListeners() {\n            const deregisterStatesChangedListener = $uiRouter.stateRegistry.onStatesChanged(handleStatesChanged);\n            const deregisterOnStartListener = $uiRouter.transitionService.onStart({}, updateAfterTransition);\n            const deregisterStateChangeSuccessListener = $scope.$on('$stateChangeSuccess', update);\n            return function cleanUp() {\n              deregisterStatesChangedListener();\n              deregisterOnStartListener();\n              deregisterStateChangeSuccessListener();\n            };\n          }\n\n          function handleStatesChanged() {\n            setStatesFromDefinitionObject(uiSrefActive);\n          }\n\n          function setStatesFromDefinitionObject(statesDefinition: Obj) {\n            if (isObject(statesDefinition)) {\n              states = [];\n              forEach(statesDefinition, function (stateOrName: StateOrName | Array<StateOrName>, activeClass: string) {\n                // Helper function to abstract adding state.\n                const addStateForClass = function (stateOrName: string, activeClass: string) {\n                  const ref = parseStateRef(stateOrName);\n                  addState(ref.state, $scope.$eval(ref.paramExpr), activeClass);\n                };\n\n                if (isString(stateOrName)) {\n                  // If state is string, just add it.\n                  addStateForClass(stateOrName as string, activeClass);\n                } else if (isArray(stateOrName)) {\n                  // If state is an array, iterate over it and add each array item individually.\n                  forEach(stateOrName, function (stateOrName: string) {\n                    addStateForClass(stateOrName, activeClass);\n                  });\n                }\n              });\n            }\n          }\n\n          function addState(stateName: string, stateParams: Obj, activeClass: string) {\n            const state = $state.get(stateName, stateContext($element));\n\n            const stateInfo = {\n              state: state || { name: stateName },\n              params: stateParams,\n              activeClass: activeClass,\n            };\n\n            states.push(stateInfo);\n\n            return function removeState() {\n              removeFrom(states)(stateInfo);\n            };\n          }\n\n          // Update route state\n          function update() {\n            const splitClasses = (str) => str.split(/\\s/).filter(identity);\n            const getClasses = (stateList: StateData[]) =>\n              stateList\n                .map((x) => x.activeClass)\n                .map(splitClasses)\n                .reduce(unnestR, []);\n\n            const allClasses = getClasses(states).concat(splitClasses(activeEqClass)).reduce(uniqR, []);\n            const fuzzyClasses = getClasses(states.filter((x) => $state.includes(x.state.name, x.params)));\n            const exactlyMatchesAny = !!states.filter((x) => $state.is(x.state.name, x.params)).length;\n            const exactClasses = exactlyMatchesAny ? splitClasses(activeEqClass) : [];\n\n            const addClasses = fuzzyClasses.concat(exactClasses).reduce(uniqR, []);\n            const removeClasses = allClasses.filter((cls) => !inArray(addClasses, cls));\n\n            $scope.$evalAsync(() => {\n              addClasses.forEach((className) => $element.addClass(className));\n              removeClasses.forEach((className) => $element.removeClass(className));\n            });\n          }\n\n          update();\n        },\n      ],\n    };\n  },\n];\n\n/** @hidden */\ninterface Def {\n  uiState: string;\n  href: string;\n  uiStateParams: Obj;\n  uiStateOpts: any;\n}\n/** @hidden */\ninterface StateData {\n  state: StateDeclaration;\n  params: RawParams;\n  activeClass: string;\n}\n\nangular\n  .module('ui.router.state')\n  .directive('uiSref', uiSrefDirective)\n  .directive('uiSrefActive', uiSrefActiveDirective)\n  .directive('uiSrefActiveEq', uiSrefActiveDirective)\n  .directive('uiState', uiStateDirective);\n"
  },
  {
    "path": "src/directives/viewDirective.ts",
    "content": "/** @publicapi @module directives */ /** */\nimport {\n  $QLike,\n  ActiveUIView,\n  extend,\n  filter,\n  HookRegOptions,\n  isDefined,\n  isFunction,\n  isString,\n  kebobString,\n  noop,\n  Obj,\n  Param,\n  parse,\n  PathNode,\n  ResolveContext,\n  StateDeclaration,\n  tail,\n  trace,\n  Transition,\n  TransitionService,\n  TypedMap,\n  unnestR,\n  ViewService,\n} from '@uirouter/core';\nimport { IAugmentedJQuery, IInterpolateService, IScope, ITranscludeFunction } from 'angular';\nimport { ng as angular } from '../angular';\nimport { Ng1Controller, Ng1StateDeclaration } from '../interface';\nimport { getLocals } from '../services';\nimport { Ng1ViewConfig } from '../statebuilders/views';\nimport { ng1_directive } from './stateDirectives';\n\n/** @hidden */\nexport type UIViewData = {\n  $cfg: Ng1ViewConfig;\n  $uiView: ActiveUIView;\n};\n\n/** @hidden */\nexport type UIViewAnimData = {\n  $animEnter: Promise<any>;\n  $animLeave: Promise<any>;\n  $$animLeave: { resolve: () => any }; // \"deferred\"\n};\n\n/**\n * `ui-view`: A viewport directive which is filled in by a view from the active state.\n *\n * ### Attributes\n *\n * - `name`: (Optional) A view name.\n *   The name should be unique amongst the other views in the same state.\n *   You can have views of the same name that live in different states.\n *   The ui-view can be targeted in a View using the name ([[Ng1StateDeclaration.views]]).\n *\n * - `autoscroll`: an expression. When it evaluates to true, the `ui-view` will be scrolled into view when it is activated.\n *   Uses [[$uiViewScroll]] to do the scrolling.\n *\n * - `onload`: Expression to evaluate whenever the view updates.\n *\n * #### Example:\n * A view can be unnamed or named.\n * ```html\n * <!-- Unnamed -->\n * <div ui-view></div>\n *\n * <!-- Named -->\n * <div ui-view=\"viewName\"></div>\n *\n * <!-- Named (different style) -->\n * <ui-view name=\"viewName\"></ui-view>\n * ```\n *\n * You can only have one unnamed view within any template (or root html). If you are only using a\n * single view and it is unnamed then you can populate it like so:\n *\n * ```html\n * <div ui-view></div>\n * $stateProvider.state(\"home\", {\n *   template: \"<h1>HELLO!</h1>\"\n * })\n * ```\n *\n * The above is a convenient shortcut equivalent to specifying your view explicitly with the\n * [[Ng1StateDeclaration.views]] config property, by name, in this case an empty name:\n *\n * ```js\n * $stateProvider.state(\"home\", {\n *   views: {\n *     \"\": {\n *       template: \"<h1>HELLO!</h1>\"\n *     }\n *   }\n * })\n * ```\n *\n * But typically you'll only use the views property if you name your view or have more than one view\n * in the same template. There's not really a compelling reason to name a view if its the only one,\n * but you could if you wanted, like so:\n *\n * ```html\n * <div ui-view=\"main\"></div>\n * ```\n *\n * ```js\n * $stateProvider.state(\"home\", {\n *   views: {\n *     \"main\": {\n *       template: \"<h1>HELLO!</h1>\"\n *     }\n *   }\n * })\n * ```\n *\n * Really though, you'll use views to set up multiple views:\n *\n * ```html\n * <div ui-view></div>\n * <div ui-view=\"chart\"></div>\n * <div ui-view=\"data\"></div>\n * ```\n *\n * ```js\n * $stateProvider.state(\"home\", {\n *   views: {\n *     \"\": {\n *       template: \"<h1>HELLO!</h1>\"\n *     },\n *     \"chart\": {\n *       template: \"<chart_thing/>\"\n *     },\n *     \"data\": {\n *       template: \"<data_thing/>\"\n *     }\n *   }\n * })\n * ```\n *\n * #### Examples for `autoscroll`:\n * ```html\n * <!-- If autoscroll present with no expression,\n *      then scroll ui-view into view -->\n * <ui-view autoscroll/>\n *\n * <!-- If autoscroll present with valid expression,\n *      then scroll ui-view into view if expression evaluates to true -->\n * <ui-view autoscroll='true'/>\n * <ui-view autoscroll='false'/>\n * <ui-view autoscroll='scopeVariable'/>\n * ```\n *\n * Resolve data:\n *\n * The resolved data from the state's `resolve` block is placed on the scope as `$resolve` (this\n * can be customized using [[Ng1ViewDeclaration.resolveAs]]).  This can be then accessed from the template.\n *\n * Note that when `controllerAs` is being used, `$resolve` is set on the controller instance *after* the\n * controller is instantiated.  The `$onInit()` hook can be used to perform initialization code which\n * depends on `$resolve` data.\n *\n * #### Example:\n * ```js\n * $stateProvider.state('home', {\n *   template: '<my-component user=\"$resolve.user\"></my-component>',\n *   resolve: {\n *     user: function(UserService) { return UserService.fetchUser(); }\n *   }\n * });\n * ```\n */\nexport let uiView: ng1_directive;\n// eslint-disable-next-line prefer-const\nuiView = [\n  '$view',\n  '$animate',\n  '$uiViewScroll',\n  '$interpolate',\n  '$q',\n  function $ViewDirective(\n    $view: ViewService,\n    $animate: any,\n    $uiViewScroll: any,\n    $interpolate: IInterpolateService,\n    $q: $QLike\n  ) {\n    function getRenderer() {\n      return {\n        enter: function (element: JQuery, target: any, cb: Function) {\n          if (angular.version.minor > 2) {\n            $animate.enter(element, null, target).then(cb);\n          } else {\n            $animate.enter(element, null, target, cb);\n          }\n        },\n        leave: function (element: JQuery, cb: Function) {\n          if (angular.version.minor > 2) {\n            $animate.leave(element).then(cb);\n          } else {\n            $animate.leave(element, cb);\n          }\n        },\n      };\n    }\n\n    function configsEqual(config1: Ng1ViewConfig, config2: Ng1ViewConfig) {\n      return config1 === config2;\n    }\n\n    const rootData = {\n      $cfg: { viewDecl: { $context: $view._pluginapi._rootViewContext() } },\n      $uiView: {},\n    };\n\n    const directive = {\n      count: 0,\n      restrict: 'ECA',\n      terminal: true,\n      priority: 400,\n      transclude: 'element',\n      compile: function (tElement: JQuery, tAttrs: Obj, $transclude: ITranscludeFunction) {\n        return function (scope: IScope, $element: IAugmentedJQuery, attrs: Obj) {\n          const onloadExp = attrs['onload'] || '',\n            autoScrollExp = attrs['autoscroll'],\n            renderer = getRenderer(),\n            inherited = $element.inheritedData('$uiView') || rootData,\n            name = $interpolate(attrs['uiView'] || attrs['name'] || '')(scope) || '$default';\n\n          let previousEl: JQuery, currentEl: JQuery, currentScope: IScope, viewConfig: Ng1ViewConfig;\n\n          const activeUIView: ActiveUIView = {\n            $type: 'ng1',\n            id: directive.count++, // Global sequential ID for ui-view tags added to DOM\n            name: name, // ui-view name (<div ui-view=\"name\"></div>\n            fqn: inherited.$uiView.fqn ? inherited.$uiView.fqn + '.' + name : name, // fully qualified name, describes location in DOM\n            config: null, // The ViewConfig loaded (from a state.views definition)\n            configUpdated: configUpdatedCallback, // Called when the matching ViewConfig changes\n            get creationContext() {\n              // The context in which this ui-view \"tag\" was created\n              const fromParentTagConfig = parse('$cfg.viewDecl.$context')(inherited);\n              // Allow <ui-view name=\"foo\"><ui-view name=\"bar\"></ui-view></ui-view>\n              // See https://github.com/angular-ui/ui-router/issues/3355\n              const fromParentTag = parse('$uiView.creationContext')(inherited);\n              return fromParentTagConfig || fromParentTag;\n            },\n          };\n\n          trace.traceUIViewEvent('Linking', activeUIView);\n\n          function configUpdatedCallback(config?: Ng1ViewConfig) {\n            if (config && !(config instanceof Ng1ViewConfig)) return;\n            if (configsEqual(viewConfig, config)) return;\n            trace.traceUIViewConfigUpdated(activeUIView, config && config.viewDecl && config.viewDecl.$context);\n\n            viewConfig = config;\n            updateView(config);\n          }\n\n          $element.data('$uiView', { $uiView: activeUIView });\n\n          updateView();\n\n          const unregister = $view.registerUIView(activeUIView);\n          scope.$on('$destroy', function () {\n            trace.traceUIViewEvent('Destroying/Unregistering', activeUIView);\n            unregister();\n          });\n\n          function cleanupLastView() {\n            if (previousEl) {\n              trace.traceUIViewEvent('Removing (previous) el', previousEl.data('$uiView'));\n              previousEl.remove();\n              previousEl = null;\n            }\n\n            if (currentScope) {\n              trace.traceUIViewEvent('Destroying scope', activeUIView);\n              currentScope.$destroy();\n              currentScope = null;\n            }\n\n            if (currentEl) {\n              const _viewData = currentEl.data('$uiViewAnim');\n              trace.traceUIViewEvent('Animate out', _viewData);\n              renderer.leave(currentEl, function () {\n                _viewData.$$animLeave.resolve();\n                previousEl = null;\n              });\n\n              previousEl = currentEl;\n              currentEl = null;\n            }\n          }\n\n          function updateView(config?: Ng1ViewConfig) {\n            const newScope = scope.$new();\n            const animEnter = $q.defer(),\n              animLeave = $q.defer();\n\n            const $uiViewData: UIViewData = {\n              $cfg: config,\n              $uiView: activeUIView,\n            };\n\n            const $uiViewAnim: UIViewAnimData = {\n              $animEnter: animEnter.promise,\n              $animLeave: animLeave.promise,\n              $$animLeave: animLeave,\n            };\n\n            /**\n             * @ngdoc event\n             * @name ui.router.state.directive:ui-view#$viewContentLoading\n             * @eventOf ui.router.state.directive:ui-view\n             * @eventType emits on ui-view directive scope\n             * @description\n             *\n             * Fired once the view **begins loading**, *before* the DOM is rendered.\n             *\n             * @param {Object} event Event object.\n             * @param {string} viewName Name of the view.\n             */\n            newScope.$emit('$viewContentLoading', name);\n\n            const cloned = $transclude(newScope, function (clone) {\n              clone.data('$uiViewAnim', $uiViewAnim);\n              clone.data('$uiView', $uiViewData);\n              renderer.enter(clone, $element, function onUIViewEnter() {\n                animEnter.resolve();\n                if (currentScope) currentScope.$emit('$viewContentAnimationEnded');\n\n                if ((isDefined(autoScrollExp) && !autoScrollExp) || scope.$eval(autoScrollExp)) {\n                  $uiViewScroll(clone);\n                }\n              });\n\n              cleanupLastView();\n            });\n\n            currentEl = cloned;\n            currentScope = newScope;\n            /**\n             * @ngdoc event\n             * @name ui.router.state.directive:ui-view#$viewContentLoaded\n             * @eventOf ui.router.state.directive:ui-view\n             * @eventType emits on ui-view directive scope\n             * @description           *\n             * Fired once the view is **loaded**, *after* the DOM is rendered.\n             *\n             * @param {Object} event Event object.\n             */\n            currentScope.$emit('$viewContentLoaded', config || viewConfig);\n            currentScope.$eval(onloadExp);\n          }\n        };\n      },\n    };\n\n    return directive;\n  },\n];\n\n$ViewDirectiveFill.$inject = ['$compile', '$controller', '$transitions', '$view', '$q'];\n\n/** @hidden */\nfunction $ViewDirectiveFill(\n  $compile: angular.ICompileService,\n  $controller: angular.IControllerService,\n  $transitions: TransitionService,\n  $view: ViewService,\n  $q: angular.IQService\n) {\n  const getControllerAs = parse('viewDecl.controllerAs');\n  const getResolveAs = parse('viewDecl.resolveAs');\n\n  return {\n    restrict: 'ECA',\n    priority: -400,\n    compile: function (tElement: JQuery) {\n      const initial = tElement.html();\n      tElement.empty();\n\n      return function (scope: IScope, $element: JQuery) {\n        const data: UIViewData = $element.data('$uiView');\n        if (!data) {\n          $element.html(initial);\n          $compile($element.contents() as any)(scope);\n          return;\n        }\n\n        const cfg: Ng1ViewConfig = data.$cfg || <any>{ viewDecl: {}, getTemplate: noop };\n        const resolveCtx: ResolveContext = cfg.path && new ResolveContext(cfg.path);\n        $element.html(cfg.getTemplate($element, resolveCtx) || initial);\n        trace.traceUIViewFill(data.$uiView, $element.html());\n\n        const link = $compile($element.contents() as any);\n        const controller = cfg.controller as angular.IControllerService;\n        const controllerAs: string = getControllerAs(cfg);\n        const resolveAs: string = getResolveAs(cfg);\n        const locals = resolveCtx && getLocals(resolveCtx);\n\n        scope[resolveAs] = locals;\n\n        if (controller) {\n          const controllerInstance = <Ng1Controller>(\n            $controller(controller, extend({}, locals, { $scope: scope, $element: $element }))\n          );\n          if (controllerAs) {\n            scope[controllerAs] = controllerInstance;\n            scope[controllerAs][resolveAs] = locals;\n          }\n\n          // TODO: Use $view service as a central point for registering component-level hooks\n          // Then, when a component is created, tell the $view service, so it can invoke hooks\n          // $view.componentLoaded(controllerInstance, { $scope: scope, $element: $element });\n          // scope.$on('$destroy', () => $view.componentUnloaded(controllerInstance, { $scope: scope, $element: $element }));\n\n          $element.data('$ngControllerController', controllerInstance);\n          $element.children().data('$ngControllerController', controllerInstance);\n\n          registerControllerCallbacks($q, $transitions, controllerInstance, scope, cfg);\n        }\n\n        // Wait for the component to appear in the DOM\n        if (isString(cfg.component)) {\n          const kebobName = kebobString(cfg.component);\n          const tagRegexp = new RegExp(`^(x-|data-)?${kebobName}$`, 'i');\n\n          const getComponentController = () => {\n            const directiveEl = [].slice\n              .call($element[0].children)\n              .filter((el: Element) => el && el.tagName && tagRegexp.exec(el.tagName));\n\n            return directiveEl && angular.element(directiveEl).data(`$${cfg.component}Controller`);\n          };\n\n          const deregisterWatch = scope.$watch(getComponentController, function (ctrlInstance) {\n            if (!ctrlInstance) return;\n            registerControllerCallbacks($q, $transitions, ctrlInstance, scope, cfg);\n            deregisterWatch();\n          });\n        }\n\n        link(scope);\n      };\n    },\n  };\n}\n\n/** @hidden */\nconst hasComponentImpl = typeof (angular as any).module('ui.router')['component'] === 'function';\n/** @hidden incrementing id */\nlet _uiCanExitId = 0;\n\n/** @hidden TODO: move these callbacks to $view and/or `/hooks/components.ts` or something */\nfunction registerControllerCallbacks(\n  $q: angular.IQService,\n  $transitions: TransitionService,\n  controllerInstance: Ng1Controller,\n  $scope: IScope,\n  cfg: Ng1ViewConfig\n) {\n  // Call $onInit() ASAP\n  if (\n    isFunction(controllerInstance.$onInit) &&\n    !((cfg.viewDecl.component || cfg.viewDecl.componentProvider) && hasComponentImpl)\n  ) {\n    controllerInstance.$onInit();\n  }\n\n  const viewState: Ng1StateDeclaration = tail(cfg.path).state.self;\n\n  const hookOptions: HookRegOptions = { bind: controllerInstance };\n  // Add component-level hook for onUiParamsChanged\n  if (isFunction(controllerInstance.uiOnParamsChanged)) {\n    const resolveContext: ResolveContext = new ResolveContext(cfg.path);\n    const viewCreationTrans = resolveContext.getResolvable('$transition$').data;\n\n    // Fire callback on any successful transition\n    const paramsUpdated = ($transition$: Transition) => {\n      // Exit early if the $transition$ is the same as the view was created within.\n      // Exit early if the $transition$ will exit the state the view is for.\n      if ($transition$ === viewCreationTrans || $transition$.exiting().indexOf(viewState as StateDeclaration) !== -1)\n        return;\n\n      const toParams = $transition$.params('to') as TypedMap<any>;\n      const fromParams = $transition$.params<TypedMap<any>>('from') as TypedMap<any>;\n      const getNodeSchema = (node: PathNode) => node.paramSchema;\n      const toSchema: Param[] = $transition$.treeChanges('to').map(getNodeSchema).reduce(unnestR, []);\n      const fromSchema: Param[] = $transition$.treeChanges('from').map(getNodeSchema).reduce(unnestR, []);\n\n      // Find the to params that have different values than the from params\n      const changedToParams = toSchema.filter((param: Param) => {\n        const idx = fromSchema.indexOf(param);\n        return idx === -1 || !fromSchema[idx].type.equals(toParams[param.id], fromParams[param.id]);\n      });\n\n      // Only trigger callback if a to param has changed or is new\n      if (changedToParams.length) {\n        const changedKeys: string[] = changedToParams.map((x) => x.id);\n        // Filter the params to only changed/new to params.  `$transition$.params()` may be used to get all params.\n        const newValues = filter(toParams, (val, key) => changedKeys.indexOf(key) !== -1);\n        controllerInstance.uiOnParamsChanged(newValues, $transition$);\n      }\n    };\n    $scope.$on('$destroy', <any>$transitions.onSuccess({}, paramsUpdated, hookOptions));\n  }\n\n  // Add component-level hook for uiCanExit\n  if (isFunction(controllerInstance.uiCanExit)) {\n    const id = _uiCanExitId++;\n    const cacheProp = '_uiCanExitIds';\n\n    // Returns true if a redirect transition already answered truthy\n    const prevTruthyAnswer = (trans: Transition) =>\n      !!trans && ((trans[cacheProp] && trans[cacheProp][id] === true) || prevTruthyAnswer(trans.redirectedFrom()));\n\n    // If a user answered yes, but the transition was later redirected, don't also ask for the new redirect transition\n    const wrappedHook = (trans: Transition) => {\n      let promise;\n      const ids = (trans[cacheProp] = trans[cacheProp] || {});\n\n      if (!prevTruthyAnswer(trans)) {\n        promise = $q.when(controllerInstance.uiCanExit(trans));\n        promise.then((val) => (ids[id] = val !== false));\n      }\n      return promise;\n    };\n\n    const criteria = { exiting: viewState.name };\n    $scope.$on('$destroy', <any>$transitions.onBefore(criteria, wrappedHook, hookOptions));\n  }\n}\n\nangular.module('ui.router.state').directive('uiView', <any>uiView);\nangular.module('ui.router.state').directive('uiView', <any>$ViewDirectiveFill);\n"
  },
  {
    "path": "src/index.ts",
    "content": "/**\n * Main entry point for angular 1.x build\n * @publicapi @module ng1\n */ /** */\nexport * from './interface';\nexport * from './services';\nexport * from './statebuilders/views';\nexport * from './stateProvider';\nexport * from './urlRouterProvider';\n\nimport './injectables';\nimport './directives/stateDirectives';\nimport './stateFilters';\nimport './directives/viewDirective';\nimport './viewScroll';\n\nexport default 'ui.router';\n\nimport * as core from '@uirouter/core';\nexport { core };\nexport * from '@uirouter/core';\n"
  },
  {
    "path": "src/injectables.ts",
    "content": "/* eslint-disable @typescript-eslint/no-unused-vars */\n/**\n * # Angular 1 injectable services\n *\n * This is a list of the objects which can be injected using angular's injector.\n *\n * There are three different kind of injectable objects:\n *\n * ## **Provider** objects\n * #### injectable into a `.config()` block during configtime\n *\n * - [[$uiRouterProvider]]: The UI-Router instance\n * - [[$stateProvider]]: State registration\n * - [[$transitionsProvider]]: Transition hooks\n * - [[$urlServiceProvider]]: All URL related public APIs\n *\n * - [[$uiViewScrollProvider]]: Disable ui-router view scrolling\n * - [[$urlRouterProvider]]: (deprecated) Url matching rules\n * - [[$urlMatcherFactoryProvider]]: (deprecated) Url parsing config\n *\n * ## **Service** objects\n * #### injectable globally during runtime\n *\n * - [[$uiRouter]]: The UI-Router instance\n * - [[$trace]]: Enable transition trace/debug\n * - [[$transitions]]: Transition hooks\n * - [[$state]]: Imperative state related APIs\n * - [[$stateRegistry]]: State registration\n * - [[$urlService]]: All URL related public APIs\n * - [[$uiRouterGlobals]]: Global variables\n * - [[$uiViewScroll]]: Scroll an element into view\n *\n * - [[$stateParams]]: (deprecated) Global state param values\n * - [[$urlRouter]]: (deprecated) URL synchronization\n * - [[$urlMatcherFactory]]: (deprecated) URL parsing config\n *\n * ## **Per-Transition** objects\n *\n * - These kind of objects are injectable into:\n *   - Resolves ([[Ng1StateDeclaration.resolve]]),\n *   - Transition Hooks ([[TransitionService.onStart]], etc),\n *   - Routed Controllers ([[Ng1ViewDeclaration.controller]])\n *\n * #### Different instances are injected based on the [[Transition]]\n *\n * - [[$transition$]]: The current Transition object\n * - [[$stateParams]]: State param values for pending Transition (deprecated)\n * - Any resolve data defined using [[Ng1StateDeclaration.resolve]]\n *\n * @preferred @publicapi @module injectables\n */ /** */\nimport { StateProvider } from './stateProvider';\nimport {\n  StateService,\n  TransitionService,\n  Transition,\n  UrlRouter,\n  UrlMatcherFactory,\n  StateParams,\n  StateRegistry,\n  UIRouterGlobals,\n  UIRouter,\n  Trace,\n  UrlService,\n} from '@uirouter/core';\nimport { UIViewScrollProvider } from './viewScroll';\nimport { UrlRouterProvider } from './urlRouterProvider';\n\n/**\n * The current (or pending) State Parameters\n *\n * An injectable global **Service Object** which holds the state parameters for the latest **SUCCESSFUL** transition.\n *\n * The values are not updated until *after* a `Transition` successfully completes.\n *\n * **Also:** an injectable **Per-Transition Object** object which holds the pending state parameters for the pending `Transition` currently running.\n *\n * ### Deprecation warning:\n *\n * The value injected for `$stateParams` is different depending on where it is injected.\n *\n * - When injected into an angular service, the object injected is the global **Service Object** with the parameter values for the latest successful `Transition`.\n * - When injected into transition hooks, resolves, or view controllers, the object is the **Per-Transition Object** with the parameter values for the running `Transition`.\n *\n * Because of these confusing details, this service is deprecated.\n *\n * ### Instead of using the global `$stateParams` service object,\n * inject [[$uiRouterGlobals]] and use [[UIRouterGlobals.params]]\n *\n * ```js\n * MyService.$inject = ['$uiRouterGlobals'];\n * function MyService($uiRouterGlobals) {\n *   return {\n *     paramValues: function () {\n *       return $uiRouterGlobals.params;\n *     }\n *   }\n * }\n * ```\n *\n * ### Instead of using the per-transition `$stateParams` object,\n * inject the current `Transition` (as [[$transition$]]) and use [[Transition.params]]\n *\n * ```js\n * MyController.$inject = ['$transition$'];\n * function MyController($transition$) {\n *   var username = $transition$.params().username;\n *   // .. do something with username\n * }\n * ```\n *\n * ---\n *\n * This object can be injected into other services.\n *\n * #### Deprecated Example:\n * ```js\n * SomeService.$inject = ['$http', '$stateParams'];\n * function SomeService($http, $stateParams) {\n *   return {\n *     getUser: function() {\n *       return $http.get('/api/users/' + $stateParams.username);\n *     }\n *   }\n * };\n * angular.service('SomeService', SomeService);\n * ```\n * @deprecated\n */\nlet $stateParams: StateParams;\n\n/**\n * Global UI-Router variables\n *\n * The router global state as a **Service Object** (injectable during runtime).\n *\n * This object contains globals such as the current state and current parameter values.\n */\nlet $uiRouterGlobals: UIRouterGlobals;\n\n/**\n * The UI-Router instance\n *\n * The [[UIRouter]] singleton (the router instance) as a **Service Object** (injectable during runtime).\n *\n * This object is the UI-Router singleton instance, created by angular dependency injection during application bootstrap.\n * It has references to the other UI-Router services\n *\n * #### Note: This object is also exposed as [[$uiRouterProvider]] for injection during angular config time.\n */\nlet $uiRouter: UIRouter;\n\n/**\n * The UI-Router instance\n *\n * The [[UIRouter]] singleton (the router instance) as a **Provider Object** (injectable during config phase).\n *\n * This object is the UI-Router singleton instance, created by angular dependency injection during application bootstrap.\n * It has references to the other UI-Router services\n *\n * #### Note: This object is also exposed as [[$uiRouter]] for injection during runtime.\n */\nlet $uiRouterProvider: UIRouter;\n\n/**\n * Transition debug/tracing\n *\n * The [[Trace]] singleton as a **Service Object** (injectable during runtime).\n *\n * Enables or disables Transition tracing which can help to debug issues.\n */\nlet $trace: Trace;\n\n/**\n * The Transition Service\n *\n * The [[TransitionService]] singleton as a **Service Object** (injectable during runtime).\n *\n * This angular service exposes the [[TransitionService]] singleton, which is primarily\n * used to register global transition hooks.\n *\n * #### Note: This object is also exposed as [[$transitionsProvider]] for injection during the config phase.\n */\nlet $transitions: TransitionService;\n\n/**\n * The Transition Service\n *\n * The [[TransitionService]] singleton as a **Provider Object** (injectable during config phase)\n *\n * This angular service exposes the [[TransitionService]] singleton, which is primarily\n * used to register global transition hooks.\n *\n * #### Note: This object is also exposed as [[$transitions]] for injection during runtime.\n */\nlet $transitionsProvider: TransitionService;\n\n/**\n * The current [[Transition]] object\n *\n * The current [[Transition]] object as a **Per-Transition Object** (injectable into Resolve, Hooks, Controllers)\n *\n * This object returns information about the current transition, including:\n *\n * - To/from states\n * - To/from parameters\n * - Transition options\n * - States being entered, exited, and retained\n * - Resolve data\n * - A Promise for the transition\n * - Any transition failure information\n * - An injector for both Service and Per-Transition Objects\n */\nlet $transition$: Transition;\n\n/**\n * The State Service\n *\n * The [[StateService]] singleton as a **Service Object** (injectable during runtime).\n *\n * This service used to manage and query information on registered states.\n * It exposes state related APIs including:\n *\n * - Start a [[Transition]]\n * - Imperatively lazy load states\n * - Check if a state is currently active\n * - Look up states by name\n * - Build URLs for a state+parameters\n * - Configure the global Transition error handler\n *\n * This angular service exposes the [[StateService]] singleton.\n */\nlet $state: StateService;\n\n/**\n * The State Registry\n *\n * The [[StateRegistry]] singleton as a **Service Object** (injectable during runtime).\n *\n * This service is used to register/deregister states.\n * It has state registration related APIs including:\n *\n * - Register/deregister states\n * - Listen for state registration/deregistration\n * - Get states by name\n * - Add state decorators (to customize the state creation process)\n *\n * #### Note: This object is also exposed as [[$stateRegistryProvider]] for injection during the config phase.\n */\nlet $stateRegistry: StateRegistry;\n\n/**\n * The State Registry\n *\n * The [[StateRegistry]] singleton as a **Provider Object** (injectable during config time).\n *\n * This service is used to register/deregister states.\n * It has state registration related APIs including:\n *\n * - Register/deregister states\n * - Listen for state registration/deregistration\n * - Get states by name\n * - Add state decorators (to customize the state creation process)\n *\n * #### Note: This object is also exposed as [[$stateRegistry]] for injection during runtime.\n */\nlet $stateRegistryProvider: StateRegistry;\n\n/**\n * The View Scroll provider\n *\n * The [[UIViewScrollProvider]] as a **Provider Object** (injectable during config time).\n *\n * This angular service exposes the [[UIViewScrollProvider]] singleton and is\n * used to disable UI-Router's scroll behavior.\n */\nlet $uiViewScrollProvider: UIViewScrollProvider;\n\n/**\n * The View Scroll function\n *\n * The View Scroll function as a **Service Object** (injectable during runtime).\n *\n * This is a function that scrolls an element into view.\n * The element is scrolled after a `$timeout` so the DOM has time to refresh.\n *\n * If you prefer to rely on `$anchorScroll` to scroll the view to the anchor,\n * this can be enabled by calling [[UIViewScrollProvider.useAnchorScroll]].\n *\n * Note: this function is used by the [[directives.uiView]] when the `autoscroll` expression evaluates to true.\n */\nlet $uiViewScroll: ($element: JQuery) => void;\n\n/**\n * The StateProvider\n *\n * An angular1-only [[StateProvider]] as a **Provider Object** (injectable during config time).\n *\n * This angular service exposes the [[StateProvider]] singleton.\n *\n * The `StateProvider` is primarily used to register states or add custom state decorators.\n *\n * ##### Note: This provider is a ng1 vestige.\n * It is a passthrough to [[$stateRegistry]] and [[$state]].\n */\nlet $stateProvider: StateProvider;\n\n/**\n * The URL Service Provider\n *\n * The [[UrlService]] singleton as a **Provider Object** (injectable during the angular config phase).\n *\n * A service used to configure and interact with the URL.\n * It has URL related APIs including:\n *\n * - register custom Parameter types `UrlService.config.type` ([[UrlConfigApi.type]])\n * - add URL rules: `UrlService.rules.when` ([[UrlRulesApi.when]])\n * - configure behavior when no url matches: `UrlService.rules.otherwise` ([[UrlRulesApi.otherwise]])\n * - delay initial URL synchronization [[UrlService.deferIntercept]].\n * - get or set the current url: [[UrlService.url]]\n *\n * ##### Note: This service can also be injected during runtime as [[$urlService]].\n */\nlet $urlServiceProvider: UrlService;\n\n/**\n * The URL Service\n *\n * The [[UrlService]] singleton as a **Service Object** (injectable during runtime).\n *\n * Note: This service can also be injected during the config phase as [[$urlServiceProvider]].\n *\n * Used to configure the URL.\n * It has URL related APIs including:\n *\n * - register custom Parameter types `UrlService.config.type` ([[UrlConfigApi.type]])\n * - add URL rules: `UrlService.rules.when` ([[UrlRulesApi.when]])\n * - configure behavior when no url matches: `UrlService.rules.otherwise` ([[UrlRulesApi.otherwise]])\n * - delay initial URL synchronization [[UrlService.deferIntercept]].\n * - get or set the current url: [[UrlService.url]]\n *\n * ##### Note: This service can also be injected during the config phase as [[$urlServiceProvider]].\n */\nlet $urlService: UrlService;\n\n/**\n * The URL Router Provider\n *\n * ### Deprecation warning: This object is now considered internal. Use [[$urlServiceProvider]] instead.\n *\n * The [[UrlRouter]] singleton as a **Provider Object** (injectable during config time).\n *\n * #### Note: This object is also exposed as [[$urlRouter]] for injection during runtime.\n *\n * @deprecated\n */\nlet $urlRouterProvider: UrlRouterProvider;\n\n/**\n * The Url Router\n *\n * ### Deprecation warning: This object is now considered internal. Use [[$urlService]] instead.\n *\n * The [[UrlRouter]] singleton as a **Service Object** (injectable during runtime).\n *\n * #### Note: This object is also exposed as [[$urlRouterProvider]] for injection during angular config time.\n *\n * @deprecated\n */\nlet $urlRouter: UrlRouter;\n\n/**\n * The URL Matcher Factory\n *\n * ### Deprecation warning: This object is now considered internal. Use [[$urlService]] instead.\n *\n * The [[UrlMatcherFactory]] singleton as a **Service Object** (injectable during runtime).\n *\n * This service is used to set url mapping options, define custom parameter types, and create [[UrlMatcher]] objects.\n *\n * #### Note: This object is also exposed as [[$urlMatcherFactoryProvider]] for injection during angular config time.\n *\n * @deprecated\n */\nlet $urlMatcherFactory: UrlMatcherFactory;\n\n/**\n * The URL Matcher Factory\n *\n * ### Deprecation warning: This object is now considered internal. Use [[$urlService]] instead.\n *\n * The [[UrlMatcherFactory]] singleton as a **Provider Object** (injectable during config time).\n *\n * This service is used to set url mapping options, define custom parameter types, and create [[UrlMatcher]] objects.\n *\n * #### Note: This object is also exposed as [[$urlMatcherFactory]] for injection during runtime.\n *\n * @deprecated\n */\nlet $urlMatcherFactoryProvider: UrlMatcherFactory;\n"
  },
  {
    "path": "src/interface.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport { StateDeclaration, _ViewDeclaration, IInjectable, Transition, HookResult, StateRegistry } from '@uirouter/core';\n\n/**\n * The signature for Angular 1 State Transition Hooks.\n *\n * State hooks are registered as onEnter/onRetain/onExit in state declarations.\n * State hooks can additionally be injected with $transition$ and $state$ for\n * the current [[Transition]] and [[StateObject]] in the transition.\n *\n * Transition State Hooks are callback functions that hook into the lifecycle events of specific states during a transition.\n * As a transition runs, it may exit some states, retain (keep) states, and enter states.\n * As each lifecycle event occurs, the hooks which are registered for the event and that state are called (in priority order).\n *\n * #### See also:\n *\n * - [[IHookRegistry.onExit]]\n * - [[IHookRegistry.onRetain]]\n * - [[IHookRegistry.onEnter]]\n *\n * #### Example:\n * ```js\n * onEnter: function() { console.log('Entering'); }\n * ```\n *\n * Not minification-safe\n * ```js\n * onRetain: function($state$) { console.log('Retained ' + $state$.name); }\n * ```\n *\n * Annotated for minification-safety\n * ```js\n * onExit: [ '$transition$', '$state', function($transition$, $state) {\n *   // always redirect to 'foo' state when being exited\n *   if ($transition$.to().name !== 'foo') {\n *     return $state.target('foo');\n *   }\n * } ]\n * ```\n *\n * @returns an optional [[HookResult]] which may alter the transition\n */\nexport interface Ng1StateTransitionHook {\n  (...injectables: any[]): HookResult;\n}\n\n/**\n * @internalapi\n * an intermediate interface.\n *\n * Used to reset [[StateDeclaration]] typings to `any` so the [[Ng1StateDeclaration]] interface can then narrow them */\nexport interface _Ng1StateDeclaration extends StateDeclaration {\n  onExit?: any;\n  onRetain?: any;\n  onEnter?: any;\n  views?: any;\n}\n\n/**\n * The StateDeclaration object is used to define a state or nested state.\n * It should be registered with the [[StateRegistry]].\n *\n * #### Example:\n * ```js\n * // StateDeclaration object\n * var foldersState = {\n *   name: 'folders',\n *   url: '/folders',\n *   resolve: {\n *     allfolders: function(FolderService) {\n *       return FolderService.list();\n *     }\n *   },\n *   template: \"<ul><li ng-repeat='folder in allfolders'>{{folder.name}}</li></ul>\",\n *   controller: function(allfolders, $scope) {\n *     $scope.allfolders = allfolders;\n *   }\n * }\n * ```\n *\n * Since this interface extends [[Ng1ViewDeclaration]], any view declaration properties can be set directly\n * on the state declaration and they will be applied to the view with the name `$default`.  For example:\n *\n * ```js\n * var state = {\n *   name: 'foo',\n *   url: '/foo',\n *   template: '<h1>foo</h1>',\n *   controller: 'FooController'\n * }\n * ```\n *\n * is simply syntactic sugar for:\n *\n * ```js\n * var state = {\n *   name: 'foo',\n *   url: '/foo',\n *   views: {\n *     $default: {\n *       template: '<h1>foo</h1>',\n *       controller: 'FooController'\n *     }\n *   }\n * }\n * ```\n *\n * If a state definition contains a `views:` object, any view properties set directly on the state are ignored.\n * Thus, this is an invalid state defintion:\n *\n * ```js\n * var state = {\n *   name: 'foo',\n *   url: '/foo',\n *   controller: 'FooController', // invalid because views: exists\n *   views: {\n *     header: {\n *       template: '<h1>header</h1>'\n *     }\n *   }\n * }\n * ```\n */\nexport interface Ng1StateDeclaration extends _Ng1StateDeclaration, Ng1ViewDeclaration {\n  /**\n   * An optional object which defines multiple named views.\n   *\n   * Each key is the name of a view, and each value is a [[Ng1ViewDeclaration]].\n   * Unnamed views are internally renamed to `$default`.\n   *\n   * A view's name is used to match an active `<ui-view>` directive in the DOM.  When the state\n   * is entered, the state's views are activated and matched with active `<ui-view>` directives:\n   *\n   * - The view's name is processed into a ui-view target:\n   *   - ui-view address: an address to a ui-view\n   *   - state anchor: the state to anchor the address to\n   *\n   *  Examples:\n   *\n   *  Targets three named ui-views in the parent state's template\n   *\n   * #### Example:\n   * ```js\n   * views: {\n   *   header: {\n   *     controller: \"headerCtrl\",\n   *     templateUrl: \"header.html\"\n   *   },\n   *   body: {\n   *     controller: \"bodyCtrl\",\n   *     templateUrl: \"body.html\"\n   *   },\n   *   footer: \"footerComponent\"\n   * }\n   * ```\n   *\n   * #### Example:\n   * ```js\n   * // Targets named ui-view=\"header\" in the template of the ancestor state 'top'\n   * // and the named `ui-view=\"body\" from the parent state's template.\n   * views: {\n   *   'header@top': {\n   *     controller: \"msgHeaderCtrl\",\n   *     templateUrl: \"msgHeader.html\"\n   *   },\n   *   'body': {\n   *     controller: \"messagesCtrl\",\n   *     templateUrl: \"messages.html\"\n   *   }\n   * }\n   * ```\n   *\n   * ## View targeting details\n   *\n   * There are a few styles of view addressing/targeting.\n   * The most common is a simple `ui-view` name\n   *\n   * #### Simple ui-view name\n   *\n   * Addresses without an `@` are anchored to the parent state.\n   *\n   * #### Example:\n   * ```js\n   * // target the `<div ui-view='foo'></div>` created in the parent state's view\n   * views: {\n   *   foo: {...}\n   * }\n   * ```\n   *\n   * #### View name anchored to a state\n   *\n   * You can anchor the `ui-view` name to a specific state by including an `@`\n   *\n   * #### Example:\n   * targets the `<div ui-view='foo'></div>` which was created in a view owned by the state `bar.baz`\n   * ```js\n   * views: {\n   *   'foo@bar.baz': {...}\n   * }\n   * ```\n   *\n   * #### Absolute addressing\n   *\n   * You can address a `ui-view` absolutely, using dotted notation, by prefixing the address with a `!`.\n   * Dotted addresses traverse the hierarchy of `ui-view`s active in the DOM:\n   *\n   * #### Example:\n   * absolutely targets the `<div ui-view='nested'></div>`\n   * ... which was created in the unnamed/$default root `<ui-view></ui-view>`\n   * ```js\n   * views: {\n   *   '!$default.nested': {...}\n   * }\n   * ```\n   *\n   * #### Relative addressing\n   *\n   * Absolute addressing is actually relative addressing, anchored to the unnamed root state (`\"\"`).\n   * You can also use relative addressing anchored to *any state*, in order to target a target deeply nested `ui-views`:\n   * The `ui-view` is targeted relative to the anchored state by traversing the nested `ui-view` names.\n   *\n   * #### Example:\n   * targets the `<div ui-view='bar'></div>`\n   * ... which was created inside the\n   * `<div ui-view='foo'></div>`\n   * ... which was created inside the parent state's template.\n   * ```js\n   * views: {\n   *   'foo.bar': {...}\n   * }\n   * ```\n   *\n   * #### Example:\n   * targets the `<div ui-view='bar'></div>`\n   * ... which was created in `<div ui-view='foo'></div>`\n   * ... which was created in a template from the state `baz.qux`\n   * ```js\n   * views: {\n   *   'foo.bar@baz.qux': {...}\n   * }\n   * ```\n   *\n   * #### Example:\n   * a view can relatively target a named `ui-view` defined on an ancestor using `^` (meaning \"parent\")\n   * ```js\n   * views: {\n   *   'foo@^': {...}, // foo@(parent state) (same as simply 'foo')\n   *   'bar@^.^': {...}, // bar@(grandparent state)\n   *   'baz@^.^.^': {...}, // baz@(great-grandparent state)\n   * }\n   * ```\n   *\n   * For additional in-depth details about how `ui-view` addressing works, see the internal api [[ViewService.match]].\n   *\n   * ---\n   *\n   * ## State template+controller and `views:` incompatiblity\n   *\n   * If a state has a `views` object, any state-level view properties ([[Ng1ViewDeclaration]]) are ignored.  Therefore,\n   * if _any view_ for a state is declared in the `views` object, then _all of the state's views_ must be defined in\n   * the `views` object.  The state declaration must not have any of the following fields:\n   * - component\n   * - bindings\n   * - resolveAs\n   * - template\n   * - templateUrl\n   * - templateProvider\n   * - controller\n   * - controllerAs\n   * - controllerProvider\n   */\n  views?: { [key: string]: string | Ng1ViewDeclaration };\n\n  /**\n   * A state hook invoked when a state is being entered.\n   *\n   * The hook can inject global services.\n   * It can also inject `$transition$` or `$state$` (from the current transition).\n   *\n   * ### Example:\n   * ```js\n   * $stateProvider.state({\n   *   name: 'mystate',\n   *   onEnter: (MyService, $transition$, $state$) => {\n   *     return MyService.doSomething($state$.name, $transition$.params());\n   *   }\n   * });\n   * ```\n   *\n   * #### Example:`\n   * ```js\n   * $stateProvider.state({\n   *   name: 'mystate',\n   *   onEnter: [ 'MyService', '$transition$', '$state$', function (MyService, $transition$, $state$) {\n   *     return MyService.doSomething($state$.name, $transition$.params());\n   *   } ]\n   * });\n   * ```\n   */\n  onEnter?: Ng1StateTransitionHook | IInjectable;\n\n  /**\n   * A state hook invoked when a state is being exited.\n   *\n   * The hook can inject global services.\n   * It can also inject `$transition$` or `$state$` (from the current transition).\n   *\n   * ### Example:\n   * ```js\n   * $stateProvider.state({\n   *   name: 'mystate',\n   *   onExit: (MyService, $transition$, $state$) => {\n   *     return MyService.doSomething($state$.name, $transition$.params());\n   *   }\n   * });\n   * ```\n   *\n   * #### Example:`\n   * ```js\n   * $stateProvider.state({\n   *   name: 'mystate',\n   *   onExit: [ 'MyService', '$transition$', '$state$', function (MyService, $transition$, $state$) {\n   *     return MyService.doSomething($state$.name, $transition$.params());\n   *   } ]\n   * });\n   * ```\n   */\n  onExit?: Ng1StateTransitionHook | IInjectable;\n\n  /**\n   * A state hook invoked when a state is being retained.\n   *\n   * The hook can inject global services.\n   * It can also inject `$transition$` or `$state$` (from the current transition).\n   *\n   * #### Example:\n   * ```js\n   * $stateProvider.state({\n   *   name: 'mystate',\n   *   onRetain: (MyService, $transition$, $state$) => {\n   *     return MyService.doSomething($state$.name, $transition$.params());\n   *   }\n   * });\n   * ```\n   *\n   * #### Example:`\n   * ```js\n   * $stateProvider.state({\n   *   name: 'mystate',\n   *   onRetain: [ 'MyService', '$transition$', '$state$', function (MyService, $transition$, $state$) {\n   *     return MyService.doSomething($state$.name, $transition$.params());\n   *   } ]\n   * });\n   * ```\n   */\n  onRetain?: Ng1StateTransitionHook | IInjectable;\n\n  /**\n   * Makes all search/query parameters `dynamic`\n   *\n   * ### Deprecation warning: use [[ParamDeclaration.dynamic]] instead\n   *\n   * @deprecated\n   */\n  reloadOnSearch?: boolean;\n}\n\nexport interface Ng1ViewDeclaration extends _ViewDeclaration {\n  /**\n   * The name of the component to use for this view.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * The name of an [angular 1.5+ `.component()`](https://docs.angularjs.org/guide/component) (or directive with\n   * bindToController and/or scope declaration) which will be used for this view.\n   *\n   * Resolve data can be provided to the component via the component's `bindings` object (for 1.3+ directives, the\n   * `bindToController` is used; for other directives, the `scope` declaration is used).  For each binding declared\n   * on the component, any resolve with the same name is set on the component's controller instance.  The binding\n   * is provided to the component as a one-time-binding.  In general, components should likewise declare their\n   * input bindings as [one-way (\"&lt;\")](https://docs.angularjs.org/api/ng/service/$compile#-scope-).\n   *\n   * Note: inside a \"views:\" block, a bare string `\"foo\"` is shorthand for `{ component: \"foo\" }`\n   *\n   * Note: Mapping from resolve names to component inputs may be specified using [[bindings]].\n   *\n   * #### Example:\n   * ```js\n   * .state('profile', {\n   *   // Use the <my-profile></my-profile> component for the Unnamed view\n   *   component: 'MyProfile',\n   * }\n   *\n   * .state('messages', {\n   *   // use the <nav-bar></nav-bar> component for the view named 'header'\n   *   // use the <message-list></message-list> component for the view named 'content'\n   *   views: {\n   *     header: { component: 'NavBar' },\n   *     content: { component: 'MessageList' }\n   *   }\n   * }\n   *\n   * .state('contacts', {\n   *   // Inside a \"views:\" block, a bare string \"NavBar\" is shorthand for { component: \"NavBar\" }\n   *   // use the <nav-bar></nav-bar> component for the view named 'header'\n   *   // use the <contact-list></contact-list> component for the view named 'content'\n   *   views: {\n   *     header: 'NavBar',\n   *     content: 'ContactList'\n   *   }\n   * }\n   * ```\n   *\n   *\n   * Note: When using `component` to define a view, you may _not_ use any of: `template`, `templateUrl`,\n   * `templateProvider`, `controller`, `controllerProvider`, `controllerAs`.\n   *\n   *\n   * See also: Todd Motto's angular 1.3 and 1.4 [backport of .component()](https://github.com/toddmotto/angular-component)\n   */\n  component?: string;\n\n  /**\n   * An object which maps `resolve`s to [[component]] `bindings`.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * When using a [[component]] declaration (`component: 'myComponent'`), each input binding for the component is supplied\n   * data from a resolve of the same name, by default.  You may supply data from a different resolve name by mapping it here.\n   *\n   * Each key in this object is the name of one of the component's input bindings.\n   * Each value is the name of the resolve that should be provided to that binding.\n   *\n   * Any component bindings that are omitted from this map get the default behavior of mapping to a resolve of the\n   * same name.\n   *\n   * #### Example:\n   * ```js\n   * $stateProvider.state('foo', {\n   *   resolve: {\n   *     foo: function(FooService) { return FooService.get(); },\n   *     bar: function(BarService) { return BarService.get(); }\n   *   },\n   *   component: 'Baz',\n   *   // The component's `baz` binding gets data from the `bar` resolve\n   *   // The component's `foo` binding gets data from the `foo` resolve (default behavior)\n   *   bindings: {\n   *     baz: 'bar'\n   *   }\n   * });\n   *\n   * app.component('Baz', {\n   *   templateUrl: 'baz.html',\n   *   controller: 'BazController',\n   *   bindings: {\n   *     foo: '<', // foo binding\n   *     baz: '<'  // baz binding\n   *   }\n   * });\n   * ```\n   *\n   */\n  bindings?: { [key: string]: string };\n\n  /**\n   * Dynamic component provider function.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * This is an injectable provider function which returns the name of the component to use.\n   * The provider will invoked during a Transition in which the view's state is entered.\n   * The provider is called after the resolve data is fetched.\n   *\n   * #### Example:\n   * ```js\n   * componentProvider: function(MyResolveData, $transition$) {\n   *   if (MyResolveData.foo) {\n   *     return \"fooComponent\"\n   *   } else if ($transition$.to().name === 'bar') {\n   *     return \"barComponent\";\n   *   }\n   * }\n   * ```\n   */\n  componentProvider?: IInjectable;\n\n  /**\n   * The view's controller function or name\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * The controller function, or the name of a registered controller.  The controller function will be used\n   * to control the contents of the [[directives.uiView]] directive.\n   *\n   * If specified as a string, controllerAs can be declared here, i.e., \"FooController as foo\" instead of in\n   * a separate [[controllerAs]] property.\n   *\n   * See: [[Ng1Controller]] for information about component-level router hooks.\n   */\n  controller?: IInjectable | string;\n\n  /**\n   * A controller alias name.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * If present, the controller will be published to scope under the `controllerAs` name.\n   * See: https://docs.angularjs.org/api/ng/directive/ngController\n   */\n  controllerAs?: string;\n\n  /**\n   * Dynamic controller provider function.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * This is an injectable provider function which returns the actual controller function, or the name\n   * of a registered controller.  The provider will invoked during a Transition in which the view's state is\n   * entered.  The provider is called after the resolve data is fetched.\n   *\n   * #### Example:\n   * ```js\n   * controllerProvider: function(MyResolveData, $transition$) {\n   *   if (MyResolveData.foo) {\n   *     return \"FooCtrl\"\n   *   } else if ($transition$.to().name === 'bar') {\n   *     return \"BarCtrl\";\n   *   } else {\n   *     return function($scope) {\n   *       $scope.baz = \"Qux\";\n   *     }\n   *   }\n   * }\n   * ```\n   */\n  controllerProvider?: IInjectable;\n\n  /**\n   * The scope variable name to use for resolve data.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * When a view is activated, the resolved data for the state which the view belongs to is put on the scope.\n   * This property sets the name of the scope variable to use for the resolved data.\n   *\n   * Defaults to `$resolve`.\n   */\n  resolveAs?: string;\n\n  /**\n   * The HTML template for the view.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * HTML template as a string, or a function which returns an html template as a string.\n   * This template will be used to render the corresponding [[directives.uiView]] directive.\n   *\n   * This property takes precedence over templateUrl.\n   *\n   * If `template` is a function, it will be called with the Transition parameters as the first argument.\n   *\n   * #### Example:\n   * ```js\n   * template: \"<h1>inline template definition</h1><div ui-view></div>\"\n   * ```\n   *\n   * #### Example:\n   * ```js\n   * template: function(params) {\n   *   return \"<h1>generated template</h1>\";\n   * }\n   * ```\n   */\n  template?: Function | string;\n\n  /**\n   * The URL for the HTML template for the view.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * A path or a function that returns a path to an html template.\n   * The template will be fetched and used to render the corresponding [[directives.uiView]] directive.\n   *\n   * If `templateUrl` is a function, it will be called with the Transition parameters as the first argument.\n   *\n   * #### Example:\n   * ```js\n   * templateUrl: \"/templates/home.html\"\n   * ```\n   *\n   * #### Example:\n   * ```js\n   * templateUrl: function(params) {\n   *   return myTemplates[params.pageId];\n   * }\n   * ```\n   */\n  templateUrl?: string | Function;\n\n  /**\n   * Injected function which returns the HTML template.\n   *\n   * A property of [[Ng1StateDeclaration]] or [[Ng1ViewDeclaration]]:\n   *\n   * Injected function which returns the HTML template.\n   * The template will be used to render the corresponding [[directives.uiView]] directive.\n   *\n   * #### Example:\n   * ```js\n   * templateProvider: function(MyTemplateService, $transition$) {\n   *   return MyTemplateService.getTemplate($transition$.params().pageId);\n   * }\n   * ```\n   */\n  templateProvider?: IInjectable;\n}\n\n/**\n * The shape of a controller for a view (and/or component), defining the controller callbacks.\n *\n * A view in UI-Router is comprised of either a `component` ([[Ng1ViewDeclaration.component]]) or a combination of a\n * `template` (or `templateProvider`) and a `controller` (or `controllerProvider`).\n *\n * The `controller` object (or the `component`'s controller object) can define component-level controller callbacks,\n * which UI-Router will call at the appropriate times.  These callbacks are similar to Transition Hooks\n * ([[IHookRegistry]]), but are only called if the view is currently active.\n *\n * This interface defines the UI-Router component callbacks.\n *\n */\nexport interface Ng1Controller {\n  /** @hidden */\n  $onInit(): void;\n  /**\n   * This callback is called when parameter values have changed.\n   *\n   * This callback can be used to respond to changing parameter values in the current state, or in parent/child states.\n   * This callback is especially handy when using dynamic parameters ([[ParamDeclaration.dynamic]])\n   *\n   * Called when:\n   * - The view is still active\n   * - A new transition has completed successfully\n   * - The state for the view (controller) was not reloaded\n   * - At least one parameter value was changed\n   *\n   * Called with:\n   * @param newValues an object containing the changed parameter values\n   * @param $transition$ the new Transition which triggered this callback\n   *\n   * #### Example:\n   * ```js\n   * angular.module('foo').controller('FancyCtrl', function() {\n   *   this.uiOnParamsChanged = function(newParams) {\n   *     console.log(\"new params: \", newParams);\n   *   }\n   * });\n   * ```\n   */\n  uiOnParamsChanged(newValues: any, $transition$: Transition): void;\n\n  /**\n   * This callback is called when the view's state is about to be exited.\n   *\n   * This callback is used to inform a view that it is about to be exited, due to a new [[Transition]].\n   * The callback can ask for user confirmation, and cancel or alter the new Transition.  The callback should\n   * return a value, or a promise for a value.  If a promise is returned, the new Transition waits until the\n   * promise settles.\n   *\n   *\n   * Called when:\n   * - The view is still active\n   * - A new Transition is about to run\n   * - The new Transition will exit the view's state\n   *\n   * Called with:\n   * - The new Transition\n   *\n   * Relevant return Values:\n   * - `false`: The transition is cancelled.\n   * - A rejected promise: The transition is cancelled.\n   * - [[TargetState]]: The transition is redirected to the new target state.\n   * - Anything else: the transition will continue normally (the state and view will be deactivated)\n   *\n   * #### Example:\n   * ```js\n   * app.component('myComponent', {\n   *   template: '<input ng-model=\"$ctrl.data\" type=\"text\">',\n   *   bindings: { 'data': '<' },\n   *   controller: function() {\n   *\n   *     this.originalData = angular.copy(this.data);\n   *\n   *     this.uiCanExit = function() {\n   *       if (!angular.equals(this.data, this.originalData)) {\n   *         // Note: This could also return a Promise and request async\n   *         // confirmation using something like ui-bootstrap $modal\n   *         return window.confirm(\"Data has changed.  Exit anyway and lose changes?\");\n   *       }\n   *     }\n   *   }\n   * }\n   * ```\n   *\n   * @param transition the new Transition that is about to exit the component's state\n   * @return a HookResult, or a promise for a HookResult\n   */\n  uiCanExit(transition: Transition): HookResult;\n}\n\n/**\n * Manages which template-loading mechanism to use.\n *\n * Defaults to `$templateRequest` on Angular versions starting from 1.3, `$http` otherwise.\n */\nexport interface TemplateFactoryProvider {\n  /**\n   * Forces $templateFactory to use $http instead of $templateRequest.\n   *\n   * UI-Router uses `$templateRequest` by default on angular 1.3+.\n   * Use this method to choose to use `$http` instead.\n   *\n   * ---\n   *\n   * ## Security warning\n   *\n   * This might cause XSS, as $http doesn't enforce the regular security checks for\n   * templates that have been introduced in Angular 1.3.\n   *\n   * See the $sce documentation, section\n   * <a href=\"https://docs.angularjs.org/api/ng/service/$sce#impact-on-loading-templates\">\n   * Impact on loading templates</a> for more details about this mechanism.\n   *\n   * *Note: forcing this to `false` on Angular 1.2.x will crash, because `$templateRequest` is not implemented.*\n   *\n   * @param useUnsafeHttpService `true` to use `$http` to fetch templates\n   */\n  useHttpService(useUnsafeHttpService: boolean);\n}\n\ndeclare module '@uirouter/core/lib/state/stateRegistry' {\n  interface StateRegistry {\n    register(state: Ng1StateDeclaration | { new (): Ng1StateDeclaration });\n  }\n}\n"
  },
  {
    "path": "src/legacy/core-adapter.js",
    "content": "var core = require('@uirouter/angularjs').core;\nmodule.exports = core;\n"
  },
  {
    "path": "src/legacy/resolveService.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport { StateObject, PathNode, ResolveContext, Obj, mapObj, resolvablesBuilder } from '@uirouter/core';\nimport * as angular from 'angular';\n\n/**\n * Implementation of the legacy `$resolve` service for angular 1.\n */\nconst $resolve = {\n  /**\n   * Asynchronously injects a resolve block.\n   *\n   * This emulates most of the behavior of the ui-router 0.2.x $resolve.resolve() service API.\n   *\n   * ### Not bundled by default\n   *\n   * This API is no longer not part of the standard `@uirouter/angularjs` bundle.\n   * For users of the prebuilt bundles, add the `release/resolveService.min.js` UMD bundle.\n   * For bundlers (webpack, browserify, etc), add `@uirouter/angularjs/lib/legacy/resolveService`.\n   *\n   * ---\n   *\n   * Given an object `invocables`, where keys are strings and values are injectable functions,\n   * injects each function, and waits for the resulting promise to resolve.\n   * When all resulting promises are resolved, returns the results as an object.\n   *\n   * #### Example:\n   * ```js\n   * let invocables = {\n   *   foo: [ '$http', ($http) =>\n   *            $http.get('/api/foo').then(resp => resp.data) ],\n   *   bar: [ 'foo', '$http', (foo, $http) =>\n   *            $http.get('/api/bar/' + foo.barId).then(resp => resp.data) ]\n   * }\n   * $resolve.resolve(invocables)\n   *     .then(results => console.log(results.foo, results.bar))\n   * // Logs foo and bar:\n   * // { id: 123, barId: 456, fooData: 'foo data' }\n   * // { id: 456, barData: 'bar data' }\n   * ```\n   *\n   * @param invocables an object which looks like an [[StateDeclaration.resolve]] object; keys are resolve names and values are injectable functions\n   * @param locals key/value pre-resolved data (locals)\n   * @param parent a promise for a \"parent resolve\"\n   */\n  resolve: (invocables: { [key: string]: Function }, locals = {}, parent?: Promise<any>) => {\n    const parentNode = new PathNode(new StateObject(<any>{ params: {}, resolvables: [] }));\n    const node = new PathNode(new StateObject(<any>{ params: {}, resolvables: [] }));\n    const context = new ResolveContext([parentNode, node]);\n\n    context.addResolvables(resolvablesBuilder(<any>{ resolve: invocables }), node.state);\n\n    const resolveData = (parentLocals: Obj) => {\n      const rewrap = (_locals: Obj) => resolvablesBuilder(<any>{ resolve: mapObj(_locals, (local) => () => local) });\n      context.addResolvables(rewrap(parentLocals), parentNode.state);\n      context.addResolvables(rewrap(locals), node.state);\n\n      const tuples2ObjR = (acc: Obj, tuple: { token: any; value: any }) => {\n        acc[tuple.token] = tuple.value;\n        return acc;\n      };\n      return context.resolvePath().then((results) => results.reduce(tuples2ObjR, {}));\n    };\n\n    return parent ? parent.then(resolveData) : resolveData({});\n  },\n};\n\n/** @hidden */\nexport const resolveFactory = () => $resolve;\n\n// The old $resolve service\nangular.module('ui.router').factory('$resolve', <any>resolveFactory);\n"
  },
  {
    "path": "src/legacy/stateEvents.ts",
    "content": "/**\n * # Legacy state events\n *\n * Polyfill implementation of the UI-Router 0.2.x state events.\n *\n * The 0.2.x state events are deprecated.  We recommend moving to Transition Hooks instead, as they\n * provide much more flexibility, support async, and provide the context (the Transition, etc) necessary\n * to implement meaningful application behaviors.\n *\n * To enable these state events, include the `stateEvents.js` file in your project, e.g.,\n * ```\n * <script src=\"stateEvents.js\"></script>\n * ```\n * and also make sure you depend on the `ui.router.state.events` angular module, e.g.,\n * ```\n * angular.module(\"myApplication\", ['ui.router', 'ui.router.state.events']\n * ```\n *\n * @publicapi @module ng1_state_events\n */ /** */\nimport { ng as angular } from '../angular';\nimport { IScope, IAngularEvent, IServiceProviderFactory } from 'angular';\nimport {\n  Obj,\n  TargetState,\n  StateService,\n  Transition,\n  TransitionService,\n  UrlRouter,\n  HookResult,\n  UIInjector,\n} from '@uirouter/core';\nimport { StateProvider } from '../stateProvider';\n\n/**\n * An event broadcast on `$rootScope` when the state transition **begins**.\n *\n * ### Deprecation warning: use [[TransitionService.onStart]] instead\n *\n * You can use `event.preventDefault()`\n * to prevent the transition from happening and then the transition promise will be\n * rejected with a `'transition prevented'` value.\n *\n * Additional arguments to the event handler are provided:\n * - `toState`: the Transition Target state\n * - `toParams`: the Transition Target Params\n * - `fromState`: the state the transition is coming from\n * - `fromParams`: the parameters from the state the transition is coming from\n * - `options`: any Transition Options\n * - `$transition$`: the [[Transition]]\n *\n * #### Example:\n * ```js\n * $rootScope.$on('$stateChangeStart', function(event, transition) {\n *   event.preventDefault();\n *   // transitionTo() promise will be rejected with\n *   // a 'transition prevented' error\n * })\n * ```\n *\n * @event $stateChangeStart\n * @deprecated\n */\nexport let $stateChangeStart: IAngularEvent;\n\n/**\n * An event broadcast on `$rootScope` if a transition is **cancelled**.\n *\n * ### Deprecation warning: use [[TransitionService.onStart]] instead\n *\n * Additional arguments to the event handler are provided:\n * - `toState`: the Transition Target state\n * - `toParams`: the Transition Target Params\n * - `fromState`: the state the transition is coming from\n * - `fromParams`: the parameters from the state the transition is coming from\n * - `options`: any Transition Options\n * - `$transition$`: the [[Transition]] that was cancelled\n *\n * @event $stateChangeCancel\n * @deprecated\n */\nexport let $stateChangeCancel: IAngularEvent;\n\n/**\n * An event broadcast on `$rootScope` once the state transition is **complete**.\n *\n * ### Deprecation warning: use [[TransitionService.onStart]] and [[Transition.promise]], or [[Transition.onSuccess]]\n *\n * Additional arguments to the event handler are provided:\n * - `toState`: the Transition Target state\n * - `toParams`: the Transition Target Params\n * - `fromState`: the state the transition is coming from\n * - `fromParams`: the parameters from the state the transition is coming from\n * - `options`: any Transition Options\n * - `$transition$`: the [[Transition]] that just succeeded\n *\n * @event $stateChangeSuccess\n * @deprecated\n */\nexport let $stateChangeSuccess: IAngularEvent;\n\n/**\n * An event broadcast on `$rootScope` when an **error occurs** during transition.\n *\n * ### Deprecation warning: use [[TransitionService.onStart]] and [[Transition.promise]], or [[Transition.onError]]\n *\n * It's important to note that if you\n * have any errors in your resolve functions (javascript errors, non-existent services, etc)\n * they will not throw traditionally. You must listen for this $stateChangeError event to\n * catch **ALL** errors.\n *\n * Additional arguments to the event handler are provided:\n * - `toState`: the Transition Target state\n * - `toParams`: the Transition Target Params\n * - `fromState`: the state the transition is coming from\n * - `fromParams`: the parameters from the state the transition is coming from\n * - `error`: The reason the transition errored.\n * - `options`: any Transition Options\n * - `$transition$`: the [[Transition]] that errored\n *\n * @event $stateChangeError\n * @deprecated\n */\nexport let $stateChangeError: IAngularEvent;\n\n/**\n * An event broadcast on `$rootScope` when a requested state **cannot be found** using the provided state name.\n *\n * ### Deprecation warning: use [[StateService.onInvalid]] instead\n *\n * The event is broadcast allowing any handlers a single chance to deal with the error (usually by\n * lazy-loading the unfound state). A `TargetState` object is passed to the listener handler,\n * you can see its properties in the example. You can use `event.preventDefault()` to abort the\n * transition and the promise returned from `transitionTo()` will be rejected with a\n * `'transition aborted'` error.\n *\n * Additional arguments to the event handler are provided:\n * - `unfoundState` Unfound State information. Contains: `to, toParams, options` properties.\n * - `fromState`: the state the transition is coming from\n * - `fromParams`: the parameters from the state the transition is coming from\n * - `options`: any Transition Options\n *\n * #### Example:\n * ```js\n * // somewhere, assume lazy.state has not been defined\n * $state.go(\"lazy.state\", { a: 1, b: 2 }, { inherit: false });\n *\n * // somewhere else\n * $scope.$on('$stateNotFound', function(event, transition) {\n * function(event, unfoundState, fromState, fromParams){\n *     console.log(unfoundState.to); // \"lazy.state\"\n *     console.log(unfoundState.toParams); // {a:1, b:2}\n *     console.log(unfoundState.options); // {inherit:false} + default options\n * });\n * ```\n *\n * @event $stateNotFound\n * @deprecated\n */\nexport let $stateNotFound: IAngularEvent;\n\n(function () {\n  const { isFunction, isString } = angular;\n\n  function applyPairs(memo: Obj, keyValTuple: any[]) {\n    let key: string, value: any;\n    if (Array.isArray(keyValTuple)) [key, value] = keyValTuple;\n    if (!isString(key)) throw new Error('invalid parameters to applyPairs');\n    memo[key] = value;\n    return memo;\n  }\n\n  function stateChangeStartHandler($transition$: Transition) {\n    if (!$transition$.options().notify || !$transition$.valid() || $transition$.ignored()) return;\n\n    const $injector = $transition$.injector();\n    const $stateEvents = $injector.get('$stateEvents');\n    const $rootScope = $injector.get('$rootScope');\n    const $state = $injector.get('$state');\n    const $urlRouter = $injector.get('$urlRouter');\n\n    const enabledEvents = $stateEvents.provider.enabled();\n\n    const toParams = $transition$.params('to');\n    const fromParams = $transition$.params('from');\n\n    if (enabledEvents.$stateChangeSuccess) {\n      const startEvent = $rootScope.$broadcast(\n        '$stateChangeStart',\n        $transition$.to(),\n        toParams,\n        $transition$.from(),\n        fromParams,\n        $transition$.options(),\n        $transition$\n      );\n\n      if (startEvent.defaultPrevented) {\n        if (enabledEvents.$stateChangeCancel) {\n          $rootScope.$broadcast(\n            '$stateChangeCancel',\n            $transition$.to(),\n            toParams,\n            $transition$.from(),\n            fromParams,\n            $transition$.options(),\n            $transition$\n          );\n        }\n        // Don't update and resync url if there's been a new transition started. see issue #2238, #600\n        if ($state.transition == null) $urlRouter.update();\n        return false;\n      }\n\n      // right after global state is updated\n      const successOpts = { priority: 9999 };\n      $transition$.onSuccess(\n        {},\n        function () {\n          $rootScope.$broadcast(\n            '$stateChangeSuccess',\n            $transition$.to(),\n            toParams,\n            $transition$.from(),\n            fromParams,\n            $transition$.options(),\n            $transition$\n          );\n        },\n        successOpts\n      );\n    }\n\n    if (enabledEvents.$stateChangeError) {\n      $transition$.promise['catch'](function (error) {\n        if (error && (error.type === 2 /* RejectType.SUPERSEDED */ || error.type === 3) /* RejectType.ABORTED */)\n          return;\n\n        const evt = $rootScope.$broadcast(\n          '$stateChangeError',\n          $transition$.to(),\n          toParams,\n          $transition$.from(),\n          fromParams,\n          error,\n          $transition$.options(),\n          $transition$\n        );\n\n        if (!evt.defaultPrevented) {\n          $urlRouter.update();\n        }\n      });\n    }\n  }\n\n  stateNotFoundHandler.$inject = ['$to$', '$from$', '$state', '$rootScope', '$urlRouter'];\n  function stateNotFoundHandler($to$: TargetState, $from$: TargetState, injector: UIInjector): HookResult {\n    const $state: StateService = injector.get('$state');\n    const $rootScope: IScope = injector.get('$rootScope');\n    const $urlRouter: UrlRouter = injector.get('$urlRouter');\n\n    interface StateNotFoundEvent extends IAngularEvent {\n      retry: Promise<any>;\n    }\n\n    const redirect = { to: $to$.identifier(), toParams: $to$.params(), options: $to$.options() };\n    const e = <StateNotFoundEvent>$rootScope.$broadcast('$stateNotFound', redirect, $from$.state(), $from$.params());\n\n    if (e.defaultPrevented || e.retry) $urlRouter.update();\n\n    function redirectFn(): TargetState {\n      return $state.target(redirect.to, redirect.toParams, redirect.options);\n    }\n\n    if (e.defaultPrevented) {\n      return false;\n    } else if (e.retry || !!$state.get(redirect.to)) {\n      return e.retry && isFunction(e.retry.then) ? e.retry.then(redirectFn) : redirectFn();\n    }\n  }\n\n  $StateEventsProvider.$inject = ['$stateProvider'];\n  function $StateEventsProvider($stateProvider: StateProvider) {\n    $StateEventsProvider.prototype.instance = this;\n\n    interface IEventsToggle {\n      [key: string]: boolean;\n      $stateChangeStart: boolean;\n      $stateNotFound: boolean;\n      $stateChangeSuccess: boolean;\n      $stateChangeError: boolean;\n    }\n\n    let runtime = false;\n    const allEvents = ['$stateChangeStart', '$stateNotFound', '$stateChangeSuccess', '$stateChangeError'];\n    const enabledStateEvents = <IEventsToggle>allEvents.map((e) => [e, true]).reduce(applyPairs, {});\n\n    function assertNotRuntime() {\n      if (runtime) throw new Error('Cannot enable events at runtime (use $stateEventsProvider');\n    }\n\n    /**\n     * Enables the deprecated UI-Router 0.2.x State Events\n     * [ '$stateChangeStart', '$stateNotFound', '$stateChangeSuccess', '$stateChangeError' ]\n     */\n    this.enable = function (...events: string[]) {\n      assertNotRuntime();\n      if (!events || !events.length) events = allEvents;\n      events.forEach((event) => (enabledStateEvents[event] = true));\n    };\n\n    /**\n     * Disables the deprecated UI-Router 0.2.x State Events\n     * [ '$stateChangeStart', '$stateNotFound', '$stateChangeSuccess', '$stateChangeError' ]\n     */\n    this.disable = function (...events: string[]) {\n      assertNotRuntime();\n      if (!events || !events.length) events = allEvents;\n      events.forEach((event) => delete enabledStateEvents[event]);\n    };\n\n    this.enabled = () => enabledStateEvents;\n\n    this.$get = $get;\n    $get.$inject = ['$transitions'];\n    function $get($transitions: TransitionService) {\n      runtime = true;\n\n      if (enabledStateEvents['$stateNotFound']) $stateProvider.onInvalid(stateNotFoundHandler);\n      if (enabledStateEvents.$stateChangeStart) $transitions.onBefore({}, stateChangeStartHandler, { priority: 1000 });\n\n      return {\n        provider: $StateEventsProvider.prototype.instance,\n      };\n    }\n  }\n\n  angular\n    .module('ui.router.state.events', ['ui.router.state'])\n    .provider('$stateEvents', ($StateEventsProvider as any) as IServiceProviderFactory)\n    .run([\n      '$stateEvents',\n      // eslint-disable-next-line @typescript-eslint/no-unused-vars\n      function ($stateEvents: any) {\n        /* Invokes $get() */\n      },\n    ]);\n})();\n"
  },
  {
    "path": "src/locationServices.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport { LocationConfig, LocationServices, UIRouter, ParamType, isDefined } from '@uirouter/core';\nimport { val, createProxyFunctions, removeFrom, isObject } from '@uirouter/core';\nimport { ILocationService, ILocationProvider, IWindowService } from 'angular';\n\n/**\n * Implements UI-Router LocationServices and LocationConfig using Angular 1's $location service\n * @internalapi\n */\nexport class Ng1LocationServices implements LocationConfig, LocationServices {\n  private $locationProvider: ILocationProvider;\n  private $location: ILocationService;\n  private $sniffer: any;\n  private $browser: any;\n  private $window: IWindowService;\n\n  path;\n  search;\n  hash;\n  hashPrefix;\n  port;\n  protocol;\n  host;\n\n  private _baseHref: string;\n\n  // .onChange() registry\n  private _urlListeners: Function[] = [];\n\n  /**\n   * Applys ng1-specific path parameter encoding\n   *\n   * The Angular 1 `$location` service is a bit weird.\n   * It doesn't allow slashes to be encoded/decoded bi-directionally.\n   *\n   * See the writeup at https://github.com/angular-ui/ui-router/issues/2598\n   *\n   * This code patches the `path` parameter type so it encoded/decodes slashes as ~2F\n   *\n   * @param router\n   */\n  static monkeyPatchPathParameterType(router: UIRouter) {\n    const pathType: ParamType = router.urlMatcherFactory.type('path');\n\n    pathType.encode = (x: any) =>\n      x != null ? x.toString().replace(/(~|\\/)/g, (m) => ({ '~': '~~', '/': '~2F' }[m])) : x;\n\n    pathType.decode = (x: string) =>\n      x != null ? x.toString().replace(/(~~|~2F)/g, (m) => ({ '~~': '~', '~2F': '/' }[m])) : x;\n  }\n\n  // eslint-disable-next-line @typescript-eslint/no-empty-function\n  dispose() {}\n\n  constructor($locationProvider: ILocationProvider) {\n    this.$locationProvider = $locationProvider;\n    const _lp = val($locationProvider);\n    createProxyFunctions(_lp, this, _lp, ['hashPrefix']);\n  }\n\n  onChange(callback: Function) {\n    this._urlListeners.push(callback);\n    return () => removeFrom(this._urlListeners)(callback);\n  }\n\n  html5Mode() {\n    let html5Mode: any = this.$locationProvider.html5Mode();\n    html5Mode = isObject(html5Mode) ? html5Mode.enabled : html5Mode;\n    return html5Mode && this.$sniffer.history;\n  }\n\n  baseHref() {\n    return this._baseHref || (this._baseHref = this.$browser.baseHref() || this.$window.location.pathname);\n  }\n\n  url(newUrl?: string, replace = false, state?) {\n    if (isDefined(newUrl)) this.$location.url(newUrl);\n    if (replace) this.$location.replace();\n    if (state) this.$location.state(state);\n    return this.$location.url();\n  }\n\n  _runtimeServices($rootScope, $location: ILocationService, $sniffer, $browser, $window: IWindowService) {\n    this.$location = $location;\n    this.$sniffer = $sniffer;\n    this.$browser = $browser;\n    this.$window = $window;\n\n    // Bind $locationChangeSuccess to the listeners registered in LocationService.onChange\n    $rootScope.$on('$locationChangeSuccess', (evt) => this._urlListeners.forEach((fn) => fn(evt)));\n    const _loc = val($location);\n\n    // Bind these LocationService functions to $location\n    createProxyFunctions(_loc, this, _loc, ['replace', 'path', 'search', 'hash']);\n    // Bind these LocationConfig functions to $location\n    createProxyFunctions(_loc, this, _loc, ['port', 'protocol', 'host']);\n  }\n}\n"
  },
  {
    "path": "src/services.ts",
    "content": "/* eslint-disable @typescript-eslint/no-empty-function */\n/* eslint-disable @typescript-eslint/no-unused-vars */\n/**\n * # Angular 1 types\n *\n * UI-Router core provides various Typescript types which you can use for code completion and validating parameter values, etc.\n * The customizations to the core types for Angular UI-Router are documented here.\n *\n * The optional [[$resolve]] service is also documented here.\n *\n * @preferred @publicapi @module ng1\n */ /** */\nimport { ng as angular } from './angular';\nimport {\n  IRootScopeService,\n  IQService,\n  ILocationService,\n  ILocationProvider,\n  IHttpService,\n  ITemplateCacheService,\n} from 'angular';\nimport {\n  services,\n  applyPairs,\n  isString,\n  trace,\n  extend,\n  UIRouter,\n  StateService,\n  UrlRouter,\n  UrlMatcherFactory,\n  ResolveContext,\n  unnestR,\n  TypedMap,\n} from '@uirouter/core';\nimport { ng1ViewsBuilder, getNg1ViewConfigFactory } from './statebuilders/views';\nimport { TemplateFactory } from './templateFactory';\nimport { StateProvider } from './stateProvider';\nimport { getStateHookBuilder } from './statebuilders/onEnterExitRetain';\nimport { Ng1LocationServices } from './locationServices';\nimport { UrlRouterProvider } from './urlRouterProvider';\nimport IInjectorService = angular.auto.IInjectorService;\n\nangular.module('ui.router.angular1', []);\nconst mod_init = angular.module('ui.router.init', ['ng']);\nconst mod_util = angular.module('ui.router.util', ['ui.router.init']);\nconst mod_rtr = angular.module('ui.router.router', ['ui.router.util']);\nconst mod_state = angular.module('ui.router.state', ['ui.router.router', 'ui.router.util', 'ui.router.angular1']);\nconst mod_main = angular.module('ui.router', ['ui.router.init', 'ui.router.state', 'ui.router.angular1']);\nconst mod_cmpt = angular.module('ui.router.compat', ['ui.router']);\n\ndeclare module '@uirouter/core/lib/router' {\n  interface UIRouter {\n    /** @hidden */\n    stateProvider: StateProvider;\n    /** @hidden */\n    urlRouterProvider: UrlRouterProvider;\n  }\n}\n\nlet router: UIRouter = null;\n\n$uiRouterProvider.$inject = ['$locationProvider'];\n/** This angular 1 provider instantiates a Router and exposes its services via the angular injector */\nfunction $uiRouterProvider($locationProvider: ILocationProvider) {\n  // Create a new instance of the Router when the $uiRouterProvider is initialized\n  router = this.router = new UIRouter();\n  router.stateProvider = new StateProvider(router.stateRegistry, router.stateService);\n\n  // Apply ng1 specific StateBuilder code for `views`, `resolve`, and `onExit/Retain/Enter` properties\n  router.stateRegistry.decorator('views', ng1ViewsBuilder);\n  router.stateRegistry.decorator('onExit', getStateHookBuilder('onExit'));\n  router.stateRegistry.decorator('onRetain', getStateHookBuilder('onRetain'));\n  router.stateRegistry.decorator('onEnter', getStateHookBuilder('onEnter'));\n\n  router.viewService._pluginapi._viewConfigFactory('ng1', getNg1ViewConfigFactory());\n\n  // Disable decoding of params by UrlMatcherFactory because $location already handles this\n  router.urlService.config._decodeParams = false;\n\n  const ng1LocationService = (router.locationService = router.locationConfig = new Ng1LocationServices(\n    $locationProvider\n  ));\n\n  Ng1LocationServices.monkeyPatchPathParameterType(router);\n\n  // backwards compat: also expose router instance as $uiRouterProvider.router\n  router['router'] = router;\n  router['$get'] = $get;\n  $get.$inject = ['$location', '$browser', '$window', '$sniffer', '$rootScope', '$http', '$templateCache'];\n  function $get(\n    $location: ILocationService,\n    $browser: any,\n    $window: any,\n    $sniffer: any,\n    $rootScope: ng.IScope,\n    $http: IHttpService,\n    $templateCache: ITemplateCacheService\n  ) {\n    ng1LocationService._runtimeServices($rootScope, $location, $sniffer, $browser, $window);\n    delete router['router'];\n    delete router['$get'];\n    return router;\n  }\n  return router;\n}\n\nconst getProviderFor = (serviceName) => [\n  '$uiRouterProvider',\n  ($urp) => {\n    const service = $urp.router[serviceName];\n    service['$get'] = () => service;\n    return service;\n  },\n];\n\n// This effectively calls $get() on `$uiRouterProvider` to trigger init (when ng enters runtime)\nrunBlock.$inject = ['$injector', '$q', '$uiRouter'];\nfunction runBlock($injector: IInjectorService, $q: IQService, $uiRouter: UIRouter) {\n  services.$injector = $injector;\n  services.$q = <any>$q;\n\n  // https://github.com/angular-ui/ui-router/issues/3678\n  if (!Object.prototype.hasOwnProperty.call($injector, 'strictDi')) {\n    try {\n      $injector.invoke(function (checkStrictDi) {});\n    } catch (error) {\n      $injector.strictDi = !!/strict mode/.exec(error && error.toString());\n    }\n  }\n\n  // The $injector is now available.\n  // Find any resolvables that had dependency annotation deferred\n  $uiRouter.stateRegistry\n    .get()\n    .map((x) => x.$$state().resolvables)\n    .reduce(unnestR, [])\n    .filter((x) => x.deps === 'deferred')\n    .forEach((resolvable) => (resolvable.deps = $injector.annotate(resolvable.resolveFn, $injector.strictDi)));\n}\n\n// $urlRouter service and $urlRouterProvider\nconst getUrlRouterProvider = (uiRouter: UIRouter) => (uiRouter.urlRouterProvider = new UrlRouterProvider(uiRouter));\n\n// $state service and $stateProvider\n// $urlRouter service and $urlRouterProvider\nconst getStateProvider = () => extend(router.stateProvider, { $get: () => router.stateService });\n\nwatchDigests.$inject = ['$rootScope'];\nexport function watchDigests($rootScope: IRootScopeService) {\n  $rootScope.$watch(function () {\n    trace.approximateDigests++;\n  });\n}\n\nmod_init.provider('$uiRouter', <any>$uiRouterProvider);\nmod_rtr.provider('$urlRouter', ['$uiRouterProvider', getUrlRouterProvider]);\nmod_util.provider('$urlService', getProviderFor('urlService'));\nmod_util.provider('$urlMatcherFactory', ['$uiRouterProvider', () => router.urlMatcherFactory]);\nmod_util.provider('$templateFactory', () => new TemplateFactory());\nmod_state.provider('$stateRegistry', getProviderFor('stateRegistry'));\nmod_state.provider('$uiRouterGlobals', getProviderFor('globals'));\nmod_state.provider('$transitions', getProviderFor('transitionService'));\nmod_state.provider('$state', ['$uiRouterProvider', getStateProvider]);\n\nmod_state.factory('$stateParams', ['$uiRouter', ($uiRouter: UIRouter) => $uiRouter.globals.params]);\nmod_main.factory('$view', () => router.viewService);\nmod_main.service('$trace', () => trace);\n\nmod_main.run(watchDigests);\nmod_util.run(['$urlMatcherFactory', function ($urlMatcherFactory: UrlMatcherFactory) {}]);\nmod_state.run(['$state', function ($state: StateService) {}]);\nmod_rtr.run(['$urlRouter', function ($urlRouter: UrlRouter) {}]);\nmod_init.run(runBlock);\n\n/** @hidden TODO: find a place to move this */\nexport const getLocals = (ctx: ResolveContext): TypedMap<any> => {\n  const tokens = ctx.getTokens().filter(isString);\n\n  const tuples = tokens.map((key) => {\n    const resolvable = ctx.getResolvable(key);\n    const waitPolicy = ctx.getPolicy(resolvable).async;\n    return [key, waitPolicy === 'NOWAIT' ? resolvable.promise : resolvable.data];\n  });\n\n  return tuples.reduce(applyPairs, {});\n};\n"
  },
  {
    "path": "src/stateFilters.ts",
    "content": "/** @publicapi @module ng1 */ /** */\n\nimport { ng as angular } from './angular';\nimport { Obj, StateService, StateOrName } from '@uirouter/core';\n\n/**\n * `isState` Filter: truthy if the current state is the parameter\n *\n * Translates to [[StateService.is]] `$state.is(\"stateName\")`.\n *\n * #### Example:\n * ```html\n * <div ng-if=\"'stateName' | isState\">show if state is 'stateName'</div>\n * ```\n */\n$IsStateFilter.$inject = ['$state'];\nfunction $IsStateFilter($state: StateService) {\n  const isFilter: any = function (state: StateOrName, params: Obj, options?: { relative?: StateOrName }) {\n    return $state.is(state, params, options);\n  };\n  isFilter.$stateful = true;\n  return isFilter;\n}\n\n/**\n * `includedByState` Filter: truthy if the current state includes the parameter\n *\n * Translates to [[StateService.includes]]` $state.is(\"fullOrPartialStateName\")`.\n *\n * #### Example:\n * ```html\n * <div ng-if=\"'fullOrPartialStateName' | includedByState\">show if state includes 'fullOrPartialStateName'</div>\n * ```\n */\n$IncludedByStateFilter.$inject = ['$state'];\nfunction $IncludedByStateFilter($state: StateService) {\n  const includesFilter: any = function (state: StateOrName, params: Obj, options: { relative?: StateOrName }) {\n    return $state.includes(state, params, options);\n  };\n  includesFilter.$stateful = true;\n  return includesFilter;\n}\n\nangular.module('ui.router.state').filter('isState', $IsStateFilter).filter('includedByState', $IncludedByStateFilter);\n\nexport { $IsStateFilter, $IncludedByStateFilter };\n"
  },
  {
    "path": "src/stateProvider.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport {\n  val,\n  isObject,\n  createProxyFunctions,\n  BuilderFunction,\n  StateRegistry,\n  StateService,\n  OnInvalidCallback,\n} from '@uirouter/core';\nimport { Ng1StateDeclaration } from './interface';\n\n/**\n * The Angular 1 `StateProvider`\n *\n * The `$stateProvider` works similar to Angular's v1 router, but it focuses purely\n * on state.\n *\n * A state corresponds to a \"place\" in the application in terms of the overall UI and\n * navigation. A state describes (via the controller / template / view properties) what\n * the UI looks like and does at that place.\n *\n * States often have things in common, and the primary way of factoring out these\n * commonalities in this model is via the state hierarchy, i.e. parent/child states aka\n * nested states.\n *\n * The `$stateProvider` provides interfaces to declare these states for your app.\n */\nexport class StateProvider {\n  constructor(private stateRegistry: StateRegistry, private stateService: StateService) {\n    createProxyFunctions(val(StateProvider.prototype), this, val(this));\n  }\n\n  /**\n   * Decorates states when they are registered\n   *\n   * Allows you to extend (carefully) or override (at your own peril) the\n   * `stateBuilder` object used internally by [[StateRegistry]].\n   * This can be used to add custom functionality to ui-router,\n   * for example inferring templateUrl based on the state name.\n   *\n   * When passing only a name, it returns the current (original or decorated) builder\n   * function that matches `name`.\n   *\n   * The builder functions that can be decorated are listed below. Though not all\n   * necessarily have a good use case for decoration, that is up to you to decide.\n   *\n   * In addition, users can attach custom decorators, which will generate new\n   * properties within the state's internal definition. There is currently no clear\n   * use-case for this beyond accessing internal states (i.e. $state.$current),\n   * however, expect this to become increasingly relevant as we introduce additional\n   * meta-programming features.\n   *\n   * **Warning**: Decorators should not be interdependent because the order of\n   * execution of the builder functions in non-deterministic. Builder functions\n   * should only be dependent on the state definition object and super function.\n   *\n   *\n   * Existing builder functions and current return values:\n   *\n   * - **parent** `{object}` - returns the parent state object.\n   * - **data** `{object}` - returns state data, including any inherited data that is not\n   *   overridden by own values (if any).\n   * - **url** `{object}` - returns a {@link ui.router.util.type:UrlMatcher UrlMatcher}\n   *   or `null`.\n   * - **navigable** `{object}` - returns closest ancestor state that has a URL (aka is\n   *   navigable).\n   * - **params** `{object}` - returns an array of state params that are ensured to\n   *   be a super-set of parent's params.\n   * - **views** `{object}` - returns a views object where each key is an absolute view\n   *   name (i.e. \"viewName@stateName\") and each value is the config object\n   *   (template, controller) for the view. Even when you don't use the views object\n   *   explicitly on a state config, one is still created for you internally.\n   *   So by decorating this builder function you have access to decorating template\n   *   and controller properties.\n   * - **ownParams** `{object}` - returns an array of params that belong to the state,\n   *   not including any params defined by ancestor states.\n   * - **path** `{string}` - returns the full path from the root down to this state.\n   *   Needed for state activation.\n   * - **includes** `{object}` - returns an object that includes every state that\n   *   would pass a `$state.includes()` test.\n   *\n   * #### Example:\n   * Override the internal 'views' builder with a function that takes the state\n   * definition, and a reference to the internal function being overridden:\n   * ```js\n   * $stateProvider.decorator('views', function (state, parent) {\n   *   let result = {},\n   *       views = parent(state);\n   *\n   *   angular.forEach(views, function (config, name) {\n   *     let autoName = (state.name + '.' + name).replace('.', '/');\n   *     config.templateUrl = config.templateUrl || '/partials/' + autoName + '.html';\n   *     result[name] = config;\n   *   });\n   *   return result;\n   * });\n   *\n   * $stateProvider.state('home', {\n   *   views: {\n   *     'contact.list': { controller: 'ListController' },\n   *     'contact.item': { controller: 'ItemController' }\n   *   }\n   * });\n   * ```\n   *\n   *\n   * ```js\n   * // Auto-populates list and item views with /partials/home/contact/list.html,\n   * // and /partials/home/contact/item.html, respectively.\n   * $state.go('home');\n   * ```\n   *\n   * @param {string} name The name of the builder function to decorate.\n   * @param {object} func A function that is responsible for decorating the original\n   * builder function. The function receives two parameters:\n   *\n   *   - `{object}` - state - The state config object.\n   *   - `{object}` - super - The original builder function.\n   *\n   * @return {object} $stateProvider - $stateProvider instance\n   */\n  decorator(name: string, func: BuilderFunction) {\n    return this.stateRegistry.decorator(name, func) || this;\n  }\n\n  /**\n   * Registers a state\n   *\n   * ### This is a passthrough to [[StateRegistry.register]].\n   *\n   * Registers a state configuration under a given state name.\n   * The stateConfig object has the following acceptable properties.\n   *\n   * <a id='template'></a>\n   *\n   * - **`template`** - {string|function=} - html template as a string or a function that returns\n   *   an html template as a string which should be used by the uiView directives. This property\n   *   takes precedence over templateUrl.\n   *\n   *   If `template` is a function, it will be called with the following parameters:\n   *\n   *   - {array.&lt;object&gt;} - state parameters extracted from the current $location.path() by\n   *     applying the current state\n   *\n   * <a id='templateUrl'></a>\n   *\n   * - **`templateUrl`** - {string|function=} - path or function that returns a path to an html\n   *   template that should be used by uiView.\n   *\n   *   If `templateUrl` is a function, it will be called with the following parameters:\n   *\n   *   - {array.&lt;object&gt;} - state parameters extracted from the current $location.path() by\n   *     applying the current state\n   *\n   * <a id='templateProvider'></a>\n   *\n   * - **`templateProvider`** - {function=} - Provider function that returns HTML content\n   *   string.\n   *\n   * <a id='controller'></a>\n   *\n   * - **`controller`** - {string|function=} -  Controller fn that should be associated with newly\n   *   related scope or the name of a registered controller if passed as a string.\n   *\n   * <a id='controllerProvider'></a>\n   *\n   * - **`controllerProvider`** - {function=} - Injectable provider function that returns\n   *   the actual controller or string.\n   *\n   * <a id='controllerAs'></a>\n   *\n   * - **`controllerAs`** – {string=} – A controller alias name. If present the controller will be\n   *   published to scope under the controllerAs name.\n   *\n   * <a id='resolve'></a>\n   *\n   * - **`resolve`** - {object.&lt;string, function&gt;=} - An optional map of dependencies which\n   *   should be injected into the controller. If any of these dependencies are promises,\n   *   the router will wait for them all to be resolved or one to be rejected before the\n   *   controller is instantiated. If all the promises are resolved successfully, the values\n   *   of the resolved promises are injected and $stateChangeSuccess event is fired. If any\n   *   of the promises are rejected the $stateChangeError event is fired. The map object is:\n   *\n   *   - key - {string}: name of dependency to be injected into controller\n   *   - factory - {string|function}: If string then it is alias for service. Otherwise if function,\n   *     it is injected and return value it treated as dependency. If result is a promise, it is\n   *     resolved before its value is injected into controller.\n   *\n   * <a id='url'></a>\n   *\n   * - **`url`** - {string=} - A url with optional parameters. When a state is navigated or\n   *   transitioned to, the `$stateParams` service will be populated with any\n   *   parameters that were passed.\n   *\n   * <a id='params'></a>\n   *\n   * - **`params`** - {object=} - An array of parameter names or regular expressions. Only\n   *   use this within a state if you are not using url. Otherwise you can specify your\n   *   parameters within the url. When a state is navigated or transitioned to, the\n   *   $stateParams service will be populated with any parameters that were passed.\n   *\n   * <a id='views'></a>\n   *\n   * - **`views`** - {object=} - Use the views property to set up multiple views or to target views\n   *   manually/explicitly.\n   *\n   * <a id='abstract'></a>\n   *\n   * - **`abstract`** - {boolean=} - An abstract state will never be directly activated,\n   *   but can provide inherited properties to its common children states.\n   *\n   * <a id='onEnter'></a>\n   *\n   * - **`onEnter`** - {object=} - Callback function for when a state is entered. Good way\n   *   to trigger an action or dispatch an event, such as opening a dialog.\n   * If minifying your scripts, make sure to use the `['injection1', 'injection2', function(injection1, injection2){}]` syntax.\n   *\n   * <a id='onExit'></a>\n   *\n   * - **`onExit`** - {object=} - Callback function for when a state is exited. Good way to\n   *   trigger an action or dispatch an event, such as opening a dialog.\n   * If minifying your scripts, make sure to use the `['injection1', 'injection2', function(injection1, injection2){}]` syntax.\n   *\n   * <a id='reloadOnSearch'></a>\n   *\n   * - **`reloadOnSearch = true`** - {boolean=} - If `false`, will not retrigger the same state\n   *   just because a search/query parameter has changed (via $location.search() or $location.hash()).\n   *   Useful for when you'd like to modify $location.search() without triggering a reload.\n   *\n   * <a id='data'></a>\n   *\n   * - **`data`** - {object=} - Arbitrary data object, useful for custom configuration.\n   *\n   * #### Example:\n   * Some state name examples\n   * ```js\n   * // stateName can be a single top-level name (must be unique).\n   * $stateProvider.state(\"home\", {});\n   *\n   * // Or it can be a nested state name. This state is a child of the\n   * // above \"home\" state.\n   * $stateProvider.state(\"home.newest\", {});\n   *\n   * // Nest states as deeply as needed.\n   * $stateProvider.state(\"home.newest.abc.xyz.inception\", {});\n   *\n   * // state() returns $stateProvider, so you can chain state declarations.\n   * $stateProvider\n   *   .state(\"home\", {})\n   *   .state(\"about\", {})\n   *   .state(\"contacts\", {});\n   * ```\n   *\n   * @param {string} name A unique state name, e.g. \"home\", \"about\", \"contacts\".\n   * To create a parent/child state use a dot, e.g. \"about.sales\", \"home.newest\".\n   * @param {object} definition State configuration object.\n   */\n  state(name: string, definition: Ng1StateDeclaration): StateProvider;\n  state(definition: Ng1StateDeclaration): StateProvider;\n  state(name: any, definition?: any) {\n    if (isObject(name)) {\n      definition = name;\n    } else {\n      definition.name = name;\n    }\n    this.stateRegistry.register(definition);\n    return this;\n  }\n\n  /**\n   * Registers an invalid state handler\n   *\n   * This is a passthrough to [[StateService.onInvalid]] for ng1.\n   */\n\n  onInvalid(callback: OnInvalidCallback): Function {\n    return this.stateService.onInvalid(callback);\n  }\n}\n"
  },
  {
    "path": "src/statebuilders/onEnterExitRetain.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport {\n  StateObject,\n  TransitionStateHookFn,\n  HookResult,\n  Transition,\n  services,\n  ResolveContext,\n  extend,\n} from '@uirouter/core';\nimport { getLocals } from '../services';\nimport { Ng1StateDeclaration } from '../interface';\n\n/**\n * This is a [[StateBuilder.builder]] function for angular1 `onEnter`, `onExit`,\n * `onRetain` callback hooks on a [[Ng1StateDeclaration]].\n *\n * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder\n * ensures that those hooks are injectable for @uirouter/angularjs (ng1).\n *\n * @internalapi\n */\nexport const getStateHookBuilder = (hookName: 'onEnter' | 'onExit' | 'onRetain') =>\n  function stateHookBuilder(stateObject: StateObject): TransitionStateHookFn {\n    const hook = stateObject[hookName];\n    const pathname = hookName === 'onExit' ? 'from' : 'to';\n\n    function decoratedNg1Hook(trans: Transition, state: Ng1StateDeclaration): HookResult {\n      const resolveContext = new ResolveContext(trans.treeChanges(pathname));\n      const subContext = resolveContext.subContext(state.$$state());\n      const locals = extend(getLocals(subContext), { $state$: state, $transition$: trans });\n      return services.$injector.invoke(hook, this, locals);\n    }\n\n    return hook ? decoratedNg1Hook : undefined;\n  };\n"
  },
  {
    "path": "src/statebuilders/views.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport {\n  StateObject,\n  pick,\n  forEach,\n  tail,\n  extend,\n  isArray,\n  isInjectable,\n  isDefined,\n  isString,\n  services,\n  trace,\n  ViewConfig,\n  ViewService,\n  ViewConfigFactory,\n  PathNode,\n  ResolveContext,\n  Resolvable,\n  IInjectable,\n} from '@uirouter/core';\nimport { Ng1ViewDeclaration } from '../interface';\nimport { TemplateFactory } from '../templateFactory';\n\n/** @internalapi */\nexport function getNg1ViewConfigFactory(): ViewConfigFactory {\n  let templateFactory: TemplateFactory = null;\n  return (path, view) => {\n    templateFactory = templateFactory || services.$injector.get('$templateFactory');\n    return [new Ng1ViewConfig(path, view, templateFactory)];\n  };\n}\n\n/** @internalapi */\nconst hasAnyKey = (keys, obj) => keys.reduce((acc, key) => acc || isDefined(obj[key]), false);\n\n/**\n * This is a [[StateBuilder.builder]] function for angular1 `views`.\n *\n * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder\n * handles the `views` property with logic specific to @uirouter/angularjs (ng1).\n *\n * If no `views: {}` property exists on the [[StateDeclaration]], then it creates the `views` object\n * and applies the state-level configuration to a view named `$default`.\n *\n * @internalapi\n */\nexport function ng1ViewsBuilder(state: StateObject) {\n  // Do not process root state\n  if (!state.parent) return {};\n\n  const tplKeys = ['templateProvider', 'templateUrl', 'template', 'notify', 'async'],\n    ctrlKeys = ['controller', 'controllerProvider', 'controllerAs', 'resolveAs'],\n    compKeys = ['component', 'bindings', 'componentProvider'],\n    nonCompKeys = tplKeys.concat(ctrlKeys),\n    allViewKeys = compKeys.concat(nonCompKeys);\n\n  // Do not allow a state to have both state-level props and also a `views: {}` property.\n  // A state without a `views: {}` property can declare properties for the `$default` view as properties of the state.\n  // However, the `$default` approach should not be mixed with a separate `views: ` block.\n  if (isDefined(state.views) && hasAnyKey(allViewKeys, state)) {\n    throw new Error(\n      `State '${state.name}' has a 'views' object. ` +\n        `It cannot also have \"view properties\" at the state level.  ` +\n        `Move the following properties into a view (in the 'views' object): ` +\n        ` ${allViewKeys.filter((key) => isDefined(state[key])).join(', ')}`\n    );\n  }\n\n  const views: { [key: string]: Ng1ViewDeclaration } = {},\n    viewsObject = state.views || { $default: pick(state, allViewKeys) };\n\n  forEach(viewsObject, function (config: Ng1ViewDeclaration, name: string) {\n    // Account for views: { \"\": { template... } }\n    name = name || '$default';\n    // Account for views: { header: \"headerComponent\" }\n    if (isString(config)) config = { component: <string>config };\n\n    // Make a shallow copy of the config object\n    config = extend({}, config);\n\n    // Do not allow a view to mix props for component-style view with props for template/controller-style view\n    if (hasAnyKey(compKeys, config) && hasAnyKey(nonCompKeys, config)) {\n      throw new Error(\n        `Cannot combine: ${compKeys.join('|')} with: ${nonCompKeys.join('|')} in stateview: '${name}@${state.name}'`\n      );\n    }\n\n    config.resolveAs = config.resolveAs || '$resolve';\n    config.$type = 'ng1';\n    config.$context = state;\n    config.$name = name;\n\n    const normalized = ViewService.normalizeUIViewTarget(config.$context, config.$name);\n    config.$uiViewName = normalized.uiViewName;\n    config.$uiViewContextAnchor = normalized.uiViewContextAnchor;\n\n    views[name] = config;\n  });\n  return views;\n}\n\n/** @hidden */\nlet id = 0;\n\n/** @internalapi */\nexport class Ng1ViewConfig implements ViewConfig {\n  $id = id++;\n  loaded = false;\n  controller: Function; // actually IInjectable|string\n  template: string;\n  component: string;\n  locals: any; // TODO: delete me\n\n  constructor(public path: PathNode[], public viewDecl: Ng1ViewDeclaration, public factory: TemplateFactory) {}\n\n  load() {\n    const $q = services.$q;\n    const context = new ResolveContext(this.path);\n    const params = this.path.reduce((acc, node) => extend(acc, node.paramValues), {});\n\n    const promises: any = {\n      template: $q.when(this.factory.fromConfig(this.viewDecl, params, context)),\n      controller: $q.when(this.getController(context)),\n    };\n\n    return $q.all(promises).then((results) => {\n      trace.traceViewServiceEvent('Loaded', this);\n      this.controller = results.controller;\n      extend(this, results.template); // Either { template: \"tpl\" } or { component: \"cmpName\" }\n      return this;\n    });\n  }\n\n  getTemplate = (uiView, context: ResolveContext) =>\n    this.component\n      ? this.factory.makeComponentTemplate(uiView, context, this.component, this.viewDecl.bindings)\n      : this.template;\n\n  /**\n   * Gets the controller for a view configuration.\n   *\n   * @returns {Function|Promise.<Function>} Returns a controller, or a promise that resolves to a controller.\n   */\n  getController(context: ResolveContext): IInjectable | string | Promise<IInjectable | string> {\n    const provider = this.viewDecl.controllerProvider;\n    if (!isInjectable(provider)) return this.viewDecl.controller;\n    const deps = services.$injector.annotate(provider);\n    const providerFn = isArray(provider) ? tail(<any>provider) : provider;\n    const resolvable = new Resolvable('', <any>providerFn, deps);\n    return resolvable.get(context);\n  }\n}\n"
  },
  {
    "path": "src/templateFactory.ts",
    "content": "/** @publicapi @module view */ /** */\nimport { ng as angular } from './angular';\nimport { IAugmentedJQuery } from 'angular';\nimport {\n  isArray,\n  isDefined,\n  isFunction,\n  isObject,\n  services,\n  Obj,\n  IInjectable,\n  tail,\n  kebobString,\n  unnestR,\n  ResolveContext,\n  Resolvable,\n  RawParams,\n} from '@uirouter/core';\nimport { Ng1ViewDeclaration, TemplateFactoryProvider } from './interface';\n\n/**\n * Service which manages loading of templates from a ViewConfig.\n */\nexport class TemplateFactory implements TemplateFactoryProvider {\n  /** @hidden */ private _useHttp = angular.version.minor < 3;\n  /** @hidden */ private $templateRequest;\n  /** @hidden */ private $templateCache;\n  /** @hidden */ private $http;\n\n  /** @hidden */ $get = [\n    '$http',\n    '$templateCache',\n    '$injector',\n    ($http, $templateCache, $injector) => {\n      this.$templateRequest = $injector.has && $injector.has('$templateRequest') && $injector.get('$templateRequest');\n      this.$http = $http;\n      this.$templateCache = $templateCache;\n      return this;\n    },\n  ];\n\n  /** @hidden */\n  useHttpService(value: boolean) {\n    this._useHttp = value;\n  }\n\n  /**\n   * Creates a template from a configuration object.\n   *\n   * @param config Configuration object for which to load a template.\n   * The following properties are search in the specified order, and the first one\n   * that is defined is used to create the template:\n   *\n   * @param params  Parameters to pass to the template function.\n   * @param context The resolve context associated with the template's view\n   *\n   * @return {string|object}  The template html as a string, or a promise for\n   * that string,or `null` if no template is configured.\n   */\n  fromConfig(\n    config: Ng1ViewDeclaration,\n    params: any,\n    context: ResolveContext\n  ): Promise<{ template?: string; component?: string }> {\n    const defaultTemplate = '<ui-view></ui-view>';\n\n    const asTemplate = (result) => services.$q.when(result).then((str) => ({ template: str }));\n    const asComponent = (result) => services.$q.when(result).then((str) => ({ component: str }));\n\n    return isDefined(config.template)\n      ? asTemplate(this.fromString(config.template, params))\n      : isDefined(config.templateUrl)\n      ? asTemplate(this.fromUrl(config.templateUrl, params))\n      : isDefined(config.templateProvider)\n      ? asTemplate(this.fromProvider(config.templateProvider, params, context))\n      : isDefined(config.component)\n      ? asComponent(config.component)\n      : isDefined(config.componentProvider)\n      ? asComponent(this.fromComponentProvider(config.componentProvider, params, context))\n      : asTemplate(defaultTemplate);\n  }\n\n  /**\n   * Creates a template from a string or a function returning a string.\n   *\n   * @param template html template as a string or function that returns an html template as a string.\n   * @param params Parameters to pass to the template function.\n   *\n   * @return {string|object} The template html as a string, or a promise for that\n   * string.\n   */\n  fromString(template: string | Function, params?: RawParams) {\n    return isFunction(template) ? (<any>template)(params) : template;\n  }\n\n  /**\n   * Loads a template from the a URL via `$http` and `$templateCache`.\n   *\n   * @param {string|Function} url url of the template to load, or a function\n   * that returns a url.\n   * @param {Object} params Parameters to pass to the url function.\n   * @return {string|Promise.<string>} The template html as a string, or a promise\n   * for that string.\n   */\n  fromUrl(url: string | Function, params: any) {\n    if (isFunction(url)) url = (<any>url)(params);\n    if (url == null) return null;\n\n    if (this._useHttp) {\n      return this.$http\n        .get(url, { cache: this.$templateCache, headers: { Accept: 'text/html' } })\n        .then(function (response) {\n          return response.data;\n        });\n    }\n\n    return this.$templateRequest(url);\n  }\n\n  /**\n   * Creates a template by invoking an injectable provider function.\n   *\n   * @param provider Function to invoke via `locals`\n   * @param {Function} injectFn a function used to invoke the template provider\n   * @return {string|Promise.<string>} The template html as a string, or a promise\n   * for that string.\n   */\n  fromProvider(provider: IInjectable, params: any, context: ResolveContext) {\n    const deps = services.$injector.annotate(provider);\n    const providerFn = isArray(provider) ? tail(<any[]>provider) : provider;\n    const resolvable = new Resolvable('', <Function>providerFn, deps);\n    return resolvable.get(context);\n  }\n\n  /**\n   * Creates a component's template by invoking an injectable provider function.\n   *\n   * @param provider Function to invoke via `locals`\n   * @param {Function} injectFn a function used to invoke the template provider\n   * @return {string} The template html as a string: \"<component-name input1='::$resolve.foo'></component-name>\".\n   */\n  fromComponentProvider(provider: IInjectable, params: any, context: ResolveContext) {\n    const deps = services.$injector.annotate(provider);\n    const providerFn = isArray(provider) ? tail(<any[]>provider) : provider;\n    const resolvable = new Resolvable('', <Function>providerFn, deps);\n    return resolvable.get(context);\n  }\n\n  /**\n   * Creates a template from a component's name\n   *\n   * This implements route-to-component.\n   * It works by retrieving the component (directive) metadata from the injector.\n   * It analyses the component's bindings, then constructs a template that instantiates the component.\n   * The template wires input and output bindings to resolves or from the parent component.\n   *\n   * @param uiView {object} The parent ui-view (for binding outputs to callbacks)\n   * @param context The ResolveContext (for binding outputs to callbacks returned from resolves)\n   * @param component {string} Component's name in camel case.\n   * @param bindings An object defining the component's bindings: {foo: '<'}\n   * @return {string} The template as a string: \"<component-name input1='::$resolve.foo'></component-name>\".\n   */\n  makeComponentTemplate(uiView: IAugmentedJQuery, context: ResolveContext, component: string, bindings?: any) {\n    bindings = bindings || {};\n\n    // Bind once prefix\n    const prefix = angular.version.minor >= 3 ? '::' : '';\n    // Convert to kebob name. Add x- prefix if the string starts with `x-` or `data-`\n    const kebob = (camelCase: string) => {\n      const kebobed = kebobString(camelCase);\n      return /^(x|data)-/.exec(kebobed) ? `x-${kebobed}` : kebobed;\n    };\n\n    const attributeTpl = (input: BindingTuple) => {\n      const { name, type } = input;\n      const attrName = kebob(name);\n      // If the ui-view has an attribute which matches a binding on the routed component\n      // then pass that attribute through to the routed component template.\n      // Prefer ui-view wired mappings to resolve data, unless the resolve was explicitly bound using `bindings:`\n      if (uiView.attr(attrName) && !bindings[name]) return `${attrName}='${uiView.attr(attrName)}'`;\n\n      const resolveName = bindings[name] || name;\n      // Pre-evaluate the expression for \"@\" bindings by enclosing in {{ }}\n      // some-attr=\"{{ ::$resolve.someResolveName }}\"\n      if (type === '@') return `${attrName}='{{${prefix}$resolve.${resolveName}}}'`;\n\n      // Wire \"&\" callbacks to resolves that return a callback function\n      // Get the result of the resolve (should be a function) and annotate it to get its arguments.\n      // some-attr=\"$resolve.someResolveResultName(foo, bar)\"\n      if (type === '&') {\n        const res = context.getResolvable(resolveName);\n        const fn = res && res.data;\n        const args = (fn && services.$injector.annotate(fn)) || [];\n        // account for array style injection, i.e., ['foo', function(foo) {}]\n        const arrayIdxStr = isArray(fn) ? `[${fn.length - 1}]` : '';\n        return `${attrName}='$resolve.${resolveName}${arrayIdxStr}(${args.join(',')})'`;\n      }\n\n      // some-attr=\"::$resolve.someResolveName\"\n      return `${attrName}='${prefix}$resolve.${resolveName}'`;\n    };\n\n    const attrs = getComponentBindings(component).map(attributeTpl).join(' ');\n    const kebobName = kebob(component);\n    return `<${kebobName} ${attrs}></${kebobName}>`;\n  }\n}\n\n// Gets all the directive(s)' inputs ('@', '=', and '<') and outputs ('&')\nfunction getComponentBindings(name: string) {\n  const cmpDefs = <any[]>services.$injector.get(name + 'Directive'); // could be multiple\n  if (!cmpDefs || !cmpDefs.length) throw new Error(`Unable to find component named '${name}'`);\n  return cmpDefs.map(getBindings).reduce(unnestR, []);\n}\n\n// Given a directive definition, find its object input attributes\n// Use different properties, depending on the type of directive (component, bindToController, normal)\nconst getBindings = (def: any) => {\n  if (isObject(def.bindToController)) return scopeBindings(def.bindToController);\n  return scopeBindings(def.scope);\n};\n\ninterface BindingTuple {\n  name: string;\n  type: string;\n}\n\n// for ng 1.2 style, process the scope: { input: \"=foo\" }\n// for ng 1.3 through ng 1.5, process the component's bindToController: { input: \"=foo\" } object\nconst scopeBindings = (bindingsObj: Obj) =>\n  Object.keys(bindingsObj || {})\n    // [ 'input', [ '=foo', '=', 'foo' ] ]\n    .map((key) => [key, /^([=<@&])[?]?(.*)/.exec(bindingsObj[key])])\n    // skip malformed values\n    .filter((tuple) => isDefined(tuple) && isArray(tuple[1]))\n    // { name: ('foo' || 'input'), type: '=' }\n    .map((tuple) => ({ name: tuple[1][2] || tuple[0], type: tuple[1][1] } as BindingTuple));\n"
  },
  {
    "path": "src/urlRouterProvider.ts",
    "content": "/** @publicapi @module url */ /** */\nimport {\n  UIRouter,\n  LocationServices,\n  $InjectorLike,\n  BaseUrlRule,\n  UrlRuleHandlerFn,\n  UrlMatcher,\n  IInjectable,\n  UrlRouter,\n} from '@uirouter/core';\nimport { services, isString, isFunction, isArray, identity } from '@uirouter/core';\n\nexport interface RawNg1RuleFunction {\n  ($injector: $InjectorLike, $location: LocationServices): string | void;\n}\n\n/**\n * Manages rules for client-side URL\n *\n * ### Deprecation warning:\n * This class is now considered to be an internal API\n * Use the [[UrlService]] instead.\n * For configuring URL rules, use the [[UrlRulesApi]] which can be found as [[UrlService.rules]].\n *\n * This class manages the router rules for what to do when the URL changes.\n *\n * This provider remains for backwards compatibility.\n *\n * @internalapi\n * @deprecated\n */\nexport class UrlRouterProvider {\n  static injectableHandler(router: UIRouter, handler: IInjectable): UrlRuleHandlerFn {\n    return (match) => services.$injector.invoke(handler, null, { $match: match, $stateParams: router.globals.params });\n  }\n\n  /** @hidden */\n  constructor(/** @hidden */ private router: UIRouter) {}\n\n  /** @hidden */\n  $get(): UrlRouter {\n    const urlService = this.router.urlService;\n    this.router.urlRouter.update(true);\n    if (!urlService.interceptDeferred) urlService.listen();\n    return this.router.urlRouter;\n  }\n\n  /**\n   * Registers a url handler function.\n   *\n   * Registers a low level url handler (a `rule`).\n   * A rule detects specific URL patterns and returns a redirect, or performs some action.\n   *\n   * If a rule returns a string, the URL is replaced with the string, and all rules are fired again.\n   *\n   * #### Example:\n   * ```js\n   * var app = angular.module('app', ['ui.router.router']);\n   *\n   * app.config(function ($urlRouterProvider) {\n   *   // Here's an example of how you might allow case insensitive urls\n   *   $urlRouterProvider.rule(function ($injector, $location) {\n   *     var path = $location.path(),\n   *         normalized = path.toLowerCase();\n   *\n   *     if (path !== normalized) {\n   *       return normalized;\n   *     }\n   *   });\n   * });\n   * ```\n   *\n   * @param ruleFn\n   * Handler function that takes `$injector` and `$location` services as arguments.\n   * You can use them to detect a url and return a different url as a string.\n   *\n   * @return [[UrlRouterProvider]] (`this`)\n   */\n  rule(ruleFn: RawNg1RuleFunction): UrlRouterProvider {\n    if (!isFunction(ruleFn)) throw new Error(\"'rule' must be a function\");\n\n    const match = () => ruleFn(services.$injector, this.router.locationService);\n\n    const rule = new BaseUrlRule(match, identity);\n    this.router.urlService.rules.rule(rule);\n    return this;\n  }\n\n  /**\n   * Defines the path or behavior to use when no url can be matched.\n   *\n   * #### Example:\n   * ```js\n   * var app = angular.module('app', ['ui.router.router']);\n   *\n   * app.config(function ($urlRouterProvider) {\n   *   // if the path doesn't match any of the urls you configured\n   *   // otherwise will take care of routing the user to the\n   *   // specified url\n   *   $urlRouterProvider.otherwise('/index');\n   *\n   *   // Example of using function rule as param\n   *   $urlRouterProvider.otherwise(function ($injector, $location) {\n   *     return '/a/valid/url';\n   *   });\n   * });\n   * ```\n   *\n   * @param rule\n   * The url path you want to redirect to or a function rule that returns the url path or performs a `$state.go()`.\n   * The function version is passed two params: `$injector` and `$location` services, and should return a url string.\n   *\n   * @return {object} `$urlRouterProvider` - `$urlRouterProvider` instance\n   */\n  otherwise(rule: string | RawNg1RuleFunction): UrlRouterProvider {\n    const urlRules = this.router.urlService.rules;\n    if (isString(rule)) {\n      urlRules.otherwise(rule);\n    } else if (isFunction(rule)) {\n      urlRules.otherwise(() => rule(services.$injector, this.router.locationService));\n    } else {\n      throw new Error(\"'rule' must be a string or function\");\n    }\n\n    return this;\n  }\n\n  /**\n   * Registers a handler for a given url matching.\n   *\n   * If the handler is a string, it is\n   * treated as a redirect, and is interpolated according to the syntax of match\n   * (i.e. like `String.replace()` for `RegExp`, or like a `UrlMatcher` pattern otherwise).\n   *\n   * If the handler is a function, it is injectable.\n   * It gets invoked if `$location` matches.\n   * You have the option of inject the match object as `$match`.\n   *\n   * The handler can return\n   *\n   * - **falsy** to indicate that the rule didn't match after all, then `$urlRouter`\n   *   will continue trying to find another one that matches.\n   * - **string** which is treated as a redirect and passed to `$location.url()`\n   * - **void** or any **truthy** value tells `$urlRouter` that the url was handled.\n   *\n   * #### Example:\n   * ```js\n   * var app = angular.module('app', ['ui.router.router']);\n   *\n   * app.config(function ($urlRouterProvider) {\n   *   $urlRouterProvider.when($state.url, function ($match, $stateParams) {\n   *     if ($state.$current.navigable !== state ||\n   *         !equalForKeys($match, $stateParams) {\n   *      $state.transitionTo(state, $match, false);\n   *     }\n   *   });\n   * });\n   * ```\n   *\n   * @param what A pattern string to match, compiled as a [[UrlMatcher]].\n   * @param handler The path (or function that returns a path) that you want to redirect your user to.\n   * @param ruleCallback [optional] A callback that receives the `rule` registered with [[UrlMatcher.rule]]\n   *\n   * Note: the handler may also invoke arbitrary code, such as `$state.go()`\n   */\n  when(what: RegExp | UrlMatcher | string, handler: string | IInjectable): this {\n    if (isArray(handler) || isFunction(handler)) {\n      handler = UrlRouterProvider.injectableHandler(this.router, handler);\n    }\n\n    this.router.urlService.rules.when(what, handler as any);\n    return this;\n  }\n\n  /**\n   * Disables monitoring of the URL.\n   *\n   * Call this method before UI-Router has bootstrapped.\n   * It will stop UI-Router from performing the initial url sync.\n   *\n   * This can be useful to perform some asynchronous initialization before the router starts.\n   * Once the initialization is complete, call [[listen]] to tell UI-Router to start watching and synchronizing the URL.\n   *\n   * #### Example:\n   * ```js\n   * var app = angular.module('app', ['ui.router']);\n   *\n   * app.config(function ($urlRouterProvider) {\n   *   // Prevent $urlRouter from automatically intercepting URL changes;\n   *   $urlRouterProvider.deferIntercept();\n   * })\n   *\n   * app.run(function (MyService, $urlRouter, $http) {\n   *   $http.get(\"/stuff\").then(function(resp) {\n   *     MyService.doStuff(resp.data);\n   *     $urlRouter.listen();\n   *     $urlRouter.sync();\n   *   });\n   * });\n   * ```\n   *\n   * @param defer Indicates whether to defer location change interception.\n   *        Passing no parameter is equivalent to `true`.\n   */\n  deferIntercept(defer?: boolean): void {\n    this.router.urlService.deferIntercept(defer);\n  }\n}\n"
  },
  {
    "path": "src/viewScroll.ts",
    "content": "/** @publicapi @module ng1 */ /** */\nimport { ng as angular } from './angular';\nimport { IServiceProviderFactory } from 'angular';\nimport IAnchorScrollService = angular.IAnchorScrollService;\nimport ITimeoutService = angular.ITimeoutService;\n\nexport interface UIViewScrollProvider {\n  /**\n   * Uses standard anchorScroll behavior\n   *\n   * Reverts [[$uiViewScroll]] back to using the core [`$anchorScroll`](http://docs.angularjs.org/api/ng.$anchorScroll)\n   * service for scrolling based on the url anchor.\n   */\n  useAnchorScroll(): void;\n}\n\n/** @hidden */\nfunction $ViewScrollProvider() {\n  let useAnchorScroll = false;\n\n  this.useAnchorScroll = function () {\n    useAnchorScroll = true;\n  };\n\n  this.$get = [\n    '$anchorScroll',\n    '$timeout',\n    function ($anchorScroll: IAnchorScrollService, $timeout: ITimeoutService): Function {\n      if (useAnchorScroll) {\n        return $anchorScroll;\n      }\n\n      return function ($element: JQuery) {\n        return $timeout(\n          function () {\n            $element[0].scrollIntoView();\n          },\n          0,\n          false\n        );\n      };\n    },\n  ];\n}\n\nangular.module('ui.router.state').provider('$uiViewScroll', <IServiceProviderFactory>$ViewScrollProvider);\n"
  },
  {
    "path": "test/angular/1.2/angular-animate.js",
    "content": "/**\n * @license AngularJS v1.2.32\n * (c) 2010-2014 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular, undefined) {'use strict';\n\n/* jshint maxlen: false */\n\n/**\n * @ngdoc module\n * @name ngAnimate\n * @description\n *\n * # ngAnimate\n *\n * The `ngAnimate` module provides support for JavaScript, CSS3 transition and CSS3 keyframe animation hooks within existing core and custom directives.\n *\n *\n * <div doc-module-components=\"ngAnimate\"></div>\n *\n * # Usage\n *\n * To see animations in action, all that is required is to define the appropriate CSS classes\n * or to register a JavaScript animation via the myModule.animation() function. The directives that support animation automatically are:\n * `ngRepeat`, `ngInclude`, `ngIf`, `ngSwitch`, `ngShow`, `ngHide`, `ngView` and `ngClass`. Custom directives can take advantage of animation\n * by using the `$animate` service.\n *\n * Below is a more detailed breakdown of the supported animation events provided by pre-existing ng directives:\n *\n * | Directive                                                 | Supported Animations                               |\n * |---------------------------------------------------------- |----------------------------------------------------|\n * | {@link ng.directive:ngRepeat#usage_animations ngRepeat}         | enter, leave and move                              |\n * | {@link ngRoute.directive:ngView#usage_animations ngView}        | enter and leave                                    |\n * | {@link ng.directive:ngInclude#usage_animations ngInclude}       | enter and leave                                    |\n * | {@link ng.directive:ngSwitch#usage_animations ngSwitch}         | enter and leave                                    |\n * | {@link ng.directive:ngIf#usage_animations ngIf}                 | enter and leave                                    |\n * | {@link ng.directive:ngClass#usage_animations ngClass}           | add and remove                                     |\n * | {@link ng.directive:ngShow#usage_animations ngShow & ngHide}    | add and remove (the ng-hide class value)           |\n * | {@link ng.directive:form#usage_animations form}                 | add and remove (dirty, pristine, valid, invalid & all other validations)                |\n * | {@link ng.directive:ngModel#usage_animations ngModel}           | add and remove (dirty, pristine, valid, invalid & all other validations)                |\n *\n * You can find out more information about animations upon visiting each directive page.\n *\n * Below is an example of how to apply animations to a directive that supports animation hooks:\n *\n * ```html\n * <style type=\"text/css\">\n * .slide.ng-enter, .slide.ng-leave {\n *   -webkit-transition:0.5s linear all;\n *   transition:0.5s linear all;\n * }\n *\n * .slide.ng-enter { }        /&#42; starting animations for enter &#42;/\n * .slide.ng-enter.ng-enter-active { } /&#42; terminal animations for enter &#42;/\n * .slide.ng-leave { }        /&#42; starting animations for leave &#42;/\n * .slide.ng-leave.ng-leave-active { } /&#42; terminal animations for leave &#42;/\n * </style>\n *\n * <!--\n * the animate service will automatically add .ng-enter and .ng-leave to the element\n * to trigger the CSS transition/animations\n * -->\n * <ANY class=\"slide\" ng-include=\"...\"></ANY>\n * ```\n *\n * Keep in mind that, by default, if an animation is running, any child elements cannot be animated\n * until the parent element's animation has completed. This blocking feature can be overridden by\n * placing the `ng-animate-children` attribute on a parent container tag.\n *\n * ```html\n * <div class=\"slide-animation\" ng-if=\"on\" ng-animate-children>\n *   <div class=\"fade-animation\" ng-if=\"on\">\n *     <div class=\"explode-animation\" ng-if=\"on\">\n *        ...\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * When the `on` expression value changes and an animation is triggered then each of the elements within\n * will all animate without the block being applied to child elements.\n *\n * <h2>CSS-defined Animations</h2>\n * The animate service will automatically apply two CSS classes to the animated element and these two CSS classes\n * are designed to contain the start and end CSS styling. Both CSS transitions and keyframe animations are supported\n * and can be used to play along with this naming structure.\n *\n * The following code below demonstrates how to perform animations using **CSS transitions** with Angular:\n *\n * ```html\n * <style type=\"text/css\">\n * /&#42;\n *  The animate class is apart of the element and the ng-enter class\n *  is attached to the element once the enter animation event is triggered\n * &#42;/\n * .reveal-animation.ng-enter {\n *  -webkit-transition: 1s linear all; /&#42; Safari/Chrome &#42;/\n *  transition: 1s linear all; /&#42; All other modern browsers and IE10+ &#42;/\n *\n *  /&#42; The animation preparation code &#42;/\n *  opacity: 0;\n * }\n *\n * /&#42;\n *  Keep in mind that you want to combine both CSS\n *  classes together to avoid any CSS-specificity\n *  conflicts\n * &#42;/\n * .reveal-animation.ng-enter.ng-enter-active {\n *  /&#42; The animation code itself &#42;/\n *  opacity: 1;\n * }\n * </style>\n *\n * <div class=\"view-container\">\n *   <div ng-view class=\"reveal-animation\"></div>\n * </div>\n * ```\n *\n * The following code below demonstrates how to perform animations using **CSS animations** with Angular:\n *\n * ```html\n * <style type=\"text/css\">\n * .reveal-animation.ng-enter {\n *   -webkit-animation: enter_sequence 1s linear; /&#42; Safari/Chrome &#42;/\n *   animation: enter_sequence 1s linear; /&#42; IE10+ and Future Browsers &#42;/\n * }\n * @-webkit-keyframes enter_sequence {\n *   from { opacity:0; }\n *   to { opacity:1; }\n * }\n * @keyframes enter_sequence {\n *   from { opacity:0; }\n *   to { opacity:1; }\n * }\n * </style>\n *\n * <div class=\"view-container\">\n *   <div ng-view class=\"reveal-animation\"></div>\n * </div>\n * ```\n *\n * Both CSS3 animations and transitions can be used together and the animate service will figure out the correct duration and delay timing.\n *\n * Upon DOM mutation, the event class is added first (something like `ng-enter`), then the browser prepares itself to add\n * the active class (in this case `ng-enter-active`) which then triggers the animation. The animation module will automatically\n * detect the CSS code to determine when the animation ends. Once the animation is over then both CSS classes will be\n * removed from the DOM. If a browser does not support CSS transitions or CSS animations then the animation will start and end\n * immediately resulting in a DOM element that is at its final state. This final state is when the DOM element\n * has no CSS transition/animation classes applied to it.\n *\n * <h3>CSS Staggering Animations</h3>\n * A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a\n * curtain-like effect. The ngAnimate module, as of 1.2.0, supports staggering animations and the stagger effect can be\n * performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for\n * the animation. The style property expected within the stagger class can either be a **transition-delay** or an\n * **animation-delay** property (or both if your animation contains both transitions and keyframe animations).\n *\n * ```css\n * .my-animation.ng-enter {\n *   /&#42; standard transition code &#42;/\n *   -webkit-transition: 1s linear all;\n *   transition: 1s linear all;\n *   opacity:0;\n * }\n * .my-animation.ng-enter-stagger {\n *   /&#42; this will have a 100ms delay between each successive leave animation &#42;/\n *   -webkit-transition-delay: 0.1s;\n *   transition-delay: 0.1s;\n *\n *   /&#42; in case the stagger doesn't work then these two values\n *    must be set to 0 to avoid an accidental CSS inheritance &#42;/\n *   -webkit-transition-duration: 0s;\n *   transition-duration: 0s;\n * }\n * .my-animation.ng-enter.ng-enter-active {\n *   /&#42; standard transition styles &#42;/\n *   opacity:1;\n * }\n * ```\n *\n * Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations\n * on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this\n * are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation\n * will also be reset if more than 10ms has passed after the last animation has been fired.\n *\n * The following code will issue the **ng-leave-stagger** event on the element provided:\n *\n * ```js\n * var kids = parent.children();\n *\n * $animate.leave(kids[0]); //stagger index=0\n * $animate.leave(kids[1]); //stagger index=1\n * $animate.leave(kids[2]); //stagger index=2\n * $animate.leave(kids[3]); //stagger index=3\n * $animate.leave(kids[4]); //stagger index=4\n *\n * $timeout(function() {\n *   //stagger has reset itself\n *   $animate.leave(kids[5]); //stagger index=0\n *   $animate.leave(kids[6]); //stagger index=1\n * }, 100, false);\n * ```\n *\n * Stagger animations are currently only supported within CSS-defined animations.\n *\n * <h2>JavaScript-defined Animations</h2>\n * In the event that you do not want to use CSS3 transitions or CSS3 animations or if you wish to offer animations on browsers that do not\n * yet support CSS transitions/animations, then you can make use of JavaScript animations defined inside of your AngularJS module.\n *\n * ```js\n * //!annotate=\"YourApp\" Your AngularJS Module|Replace this or ngModule with the module that you used to define your application.\n * var ngModule = angular.module('YourApp', ['ngAnimate']);\n * ngModule.animation('.my-crazy-animation', function() {\n *   return {\n *     enter: function(element, done) {\n *       //run the animation here and call done when the animation is complete\n *       return function(cancelled) {\n *         //this (optional) function will be called when the animation\n *         //completes or when the animation is cancelled (the cancelled\n *         //flag will be set to true if cancelled).\n *       };\n *     },\n *     leave: function(element, done) { },\n *     move: function(element, done) { },\n *\n *     //animation that can be triggered before the class is added\n *     beforeAddClass: function(element, className, done) { },\n *\n *     //animation that can be triggered after the class is added\n *     addClass: function(element, className, done) { },\n *\n *     //animation that can be triggered before the class is removed\n *     beforeRemoveClass: function(element, className, done) { },\n *\n *     //animation that can be triggered after the class is removed\n *     removeClass: function(element, className, done) { }\n *   };\n * });\n * ```\n *\n * JavaScript-defined animations are created with a CSS-like class selector and a collection of events which are set to run\n * a javascript callback function. When an animation is triggered, $animate will look for a matching animation which fits\n * the element's CSS class attribute value and then run the matching animation event function (if found).\n * In other words, if the CSS classes present on the animated element match any of the JavaScript animations then the callback function will\n * be executed. It should be also noted that only simple, single class selectors are allowed (compound class selectors are not supported).\n *\n * Within a JavaScript animation, an object containing various event callback animation functions is expected to be returned.\n * As explained above, these callbacks are triggered based on the animation event. Therefore if an enter animation is run,\n * and the JavaScript animation is found, then the enter callback will handle that animation (in addition to the CSS keyframe animation\n * or transition code that is defined via a stylesheet).\n *\n */\n\nangular.module('ngAnimate', ['ng'])\n\n  /**\n   * @ngdoc provider\n   * @name $animateProvider\n   * @description\n   *\n   * The `$animateProvider` allows developers to register JavaScript animation event handlers directly inside of a module.\n   * When an animation is triggered, the $animate service will query the $animate service to find any animations that match\n   * the provided name value.\n   *\n   * Requires the {@link ngAnimate `ngAnimate`} module to be installed.\n   *\n   * Please visit the {@link ngAnimate `ngAnimate`} module overview page learn more about how to use animations in your application.\n   *\n   */\n  .directive('ngAnimateChildren', function() {\n    var NG_ANIMATE_CHILDREN = '$$ngAnimateChildren';\n    return function(scope, element, attrs) {\n      var val = attrs.ngAnimateChildren;\n      if(angular.isString(val) && val.length === 0) { //empty attribute\n        element.data(NG_ANIMATE_CHILDREN, true);\n      } else {\n        scope.$watch(val, function(value) {\n          element.data(NG_ANIMATE_CHILDREN, !!value);\n        });\n      }\n    };\n  })\n\n  //this private service is only used within CSS-enabled animations\n  //IE8 + IE9 do not support rAF natively, but that is fine since they\n  //also don't support transitions and keyframes which means that the code\n  //below will never be used by the two browsers.\n  .factory('$$animateReflow', ['$$rAF', '$document', function($$rAF, $document) {\n    var bod = $document[0].body;\n    return function(fn) {\n      //the returned function acts as the cancellation function\n      return $$rAF(function() {\n        //the line below will force the browser to perform a repaint\n        //so that all the animated elements within the animation frame\n        //will be properly updated and drawn on screen. This is\n        //required to perform multi-class CSS based animations with\n        //Firefox. DO NOT REMOVE THIS LINE. DO NOT OPTIMIZE THIS LINE.\n        //THE MINIFIER WILL REMOVE IT OTHERWISE WHICH WILL RESULT IN AN\n        //UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND WILL\n        //TAKE YEARS AWAY FROM YOUR LIFE!\n        fn(bod.offsetWidth);\n      });\n    };\n  }])\n\n  .config(['$provide', '$animateProvider', function($provide, $animateProvider) {\n    var noop = angular.noop;\n    var forEach = angular.forEach;\n    var selectors = $animateProvider.$$selectors;\n\n    var ELEMENT_NODE = 1;\n    var NG_ANIMATE_STATE = '$$ngAnimateState';\n    var NG_ANIMATE_CHILDREN = '$$ngAnimateChildren';\n    var NG_ANIMATE_CLASS_NAME = 'ng-animate';\n    var rootAnimateState = {running: true};\n\n    function extractElementNode(element) {\n      for(var i = 0; i < element.length; i++) {\n        var elm = element[i];\n        if(elm.nodeType == ELEMENT_NODE) {\n          return elm;\n        }\n      }\n    }\n\n    function prepareElement(element) {\n      return element && angular.element(element);\n    }\n\n    function stripCommentsFromElement(element) {\n      return angular.element(extractElementNode(element));\n    }\n\n    function isMatchingElement(elm1, elm2) {\n      return extractElementNode(elm1) == extractElementNode(elm2);\n    }\n\n    $provide.decorator('$animate', ['$delegate', '$injector', '$sniffer', '$rootElement', '$$asyncCallback', '$rootScope', '$document',\n                            function($delegate,   $injector,   $sniffer,   $rootElement,   $$asyncCallback,    $rootScope,   $document) {\n\n      var globalAnimationCounter = 0;\n      $rootElement.data(NG_ANIMATE_STATE, rootAnimateState);\n\n      // disable animations during bootstrap, but once we bootstrapped, wait again\n      // for another digest until enabling animations. The reason why we digest twice\n      // is because all structural animations (enter, leave and move) all perform a\n      // post digest operation before animating. If we only wait for a single digest\n      // to pass then the structural animation would render its animation on page load.\n      // (which is what we're trying to avoid when the application first boots up.)\n      $rootScope.$$postDigest(function() {\n        $rootScope.$$postDigest(function() {\n          rootAnimateState.running = false;\n        });\n      });\n\n      var classNameFilter = $animateProvider.classNameFilter();\n      var isAnimatableClassName = !classNameFilter\n              ? function() { return true; }\n              : function(className) {\n                return classNameFilter.test(className);\n              };\n\n      function blockElementAnimations(element) {\n        var data = element.data(NG_ANIMATE_STATE) || {};\n        data.running = true;\n        element.data(NG_ANIMATE_STATE, data);\n      }\n\n      function lookup(name) {\n        if (name) {\n          var matches = [],\n              flagMap = {},\n              classes = name.substr(1).split('.');\n\n          //the empty string value is the default animation\n          //operation which performs CSS transition and keyframe\n          //animations sniffing. This is always included for each\n          //element animation procedure if the browser supports\n          //transitions and/or keyframe animations. The default\n          //animation is added to the top of the list to prevent\n          //any previous animations from affecting the element styling\n          //prior to the element being animated.\n          if ($sniffer.transitions || $sniffer.animations) {\n            matches.push($injector.get(selectors['']));\n          }\n\n          for(var i=0; i < classes.length; i++) {\n            var klass = classes[i],\n                selectorFactoryName = selectors[klass];\n            if(selectorFactoryName && !flagMap[klass]) {\n              matches.push($injector.get(selectorFactoryName));\n              flagMap[klass] = true;\n            }\n          }\n          return matches;\n        }\n      }\n\n      function animationRunner(element, animationEvent, className) {\n        //transcluded directives may sometimes fire an animation using only comment nodes\n        //best to catch this early on to prevent any animation operations from occurring\n        var node = element[0];\n        if(!node) {\n          return;\n        }\n\n        var isSetClassOperation = animationEvent == 'setClass';\n        var isClassBased = isSetClassOperation ||\n                           animationEvent == 'addClass' ||\n                           animationEvent == 'removeClass';\n\n        var classNameAdd, classNameRemove;\n        if(angular.isArray(className)) {\n          classNameAdd = className[0];\n          classNameRemove = className[1];\n          className = classNameAdd + ' ' + classNameRemove;\n        }\n\n        var currentClassName = element.attr('class');\n        var classes = currentClassName + ' ' + className;\n        if(!isAnimatableClassName(classes)) {\n          return;\n        }\n\n        var beforeComplete = noop,\n            beforeCancel = [],\n            before = [],\n            afterComplete = noop,\n            afterCancel = [],\n            after = [];\n\n        var animationLookup = (' ' + classes).replace(/\\s+/g,'.');\n        forEach(lookup(animationLookup), function(animationFactory) {\n          var created = registerAnimation(animationFactory, animationEvent);\n          if(!created && isSetClassOperation) {\n            registerAnimation(animationFactory, 'addClass');\n            registerAnimation(animationFactory, 'removeClass');\n          }\n        });\n\n        function registerAnimation(animationFactory, event) {\n          var afterFn = animationFactory[event];\n          var beforeFn = animationFactory['before' + event.charAt(0).toUpperCase() + event.substr(1)];\n          if(afterFn || beforeFn) {\n            if(event == 'leave') {\n              beforeFn = afterFn;\n              //when set as null then animation knows to skip this phase\n              afterFn = null;\n            }\n            after.push({\n              event : event, fn : afterFn\n            });\n            before.push({\n              event : event, fn : beforeFn\n            });\n            return true;\n          }\n        }\n\n        function run(fns, cancellations, allCompleteFn) {\n          var animations = [];\n          forEach(fns, function(animation) {\n            animation.fn && animations.push(animation);\n          });\n\n          var count = 0;\n          function afterAnimationComplete(index) {\n            if(cancellations) {\n              (cancellations[index] || noop)();\n              if(++count < animations.length) return;\n              cancellations = null;\n            }\n            allCompleteFn();\n          }\n\n          //The code below adds directly to the array in order to work with\n          //both sync and async animations. Sync animations are when the done()\n          //operation is called right away. DO NOT REFACTOR!\n          forEach(animations, function(animation, index) {\n            var progress = function() {\n              afterAnimationComplete(index);\n            };\n            switch(animation.event) {\n              case 'setClass':\n                cancellations.push(animation.fn(element, classNameAdd, classNameRemove, progress));\n                break;\n              case 'addClass':\n                cancellations.push(animation.fn(element, classNameAdd || className,     progress));\n                break;\n              case 'removeClass':\n                cancellations.push(animation.fn(element, classNameRemove || className,  progress));\n                break;\n              default:\n                cancellations.push(animation.fn(element, progress));\n                break;\n            }\n          });\n\n          if(cancellations && cancellations.length === 0) {\n            allCompleteFn();\n          }\n        }\n\n        return {\n          node : node,\n          event : animationEvent,\n          className : className,\n          isClassBased : isClassBased,\n          isSetClassOperation : isSetClassOperation,\n          before : function(allCompleteFn) {\n            beforeComplete = allCompleteFn;\n            run(before, beforeCancel, function() {\n              beforeComplete = noop;\n              allCompleteFn();\n            });\n          },\n          after : function(allCompleteFn) {\n            afterComplete = allCompleteFn;\n            run(after, afterCancel, function() {\n              afterComplete = noop;\n              allCompleteFn();\n            });\n          },\n          cancel : function() {\n            if(beforeCancel) {\n              forEach(beforeCancel, function(cancelFn) {\n                (cancelFn || noop)(true);\n              });\n              beforeComplete(true);\n            }\n            if(afterCancel) {\n              forEach(afterCancel, function(cancelFn) {\n                (cancelFn || noop)(true);\n              });\n              afterComplete(true);\n            }\n          }\n        };\n      }\n\n      /**\n       * @ngdoc service\n       * @name $animate\n       * @kind function\n       *\n       * @description\n       * The `$animate` service provides animation detection support while performing DOM operations (enter, leave and move) as well as during addClass and removeClass operations.\n       * When any of these operations are run, the $animate service\n       * will examine any JavaScript-defined animations (which are defined by using the $animateProvider provider object)\n       * as well as any CSS-defined animations against the CSS classes present on the element once the DOM operation is run.\n       *\n       * The `$animate` service is used behind the scenes with pre-existing directives and animation with these directives\n       * will work out of the box without any extra configuration.\n       *\n       * Requires the {@link ngAnimate `ngAnimate`} module to be installed.\n       *\n       * Please visit the {@link ngAnimate `ngAnimate`} module overview page learn more about how to use animations in your application.\n       *\n       */\n      return {\n        /**\n         * @ngdoc method\n         * @name $animate#enter\n         * @kind function\n         *\n         * @description\n         * Appends the element to the parentElement element that resides in the document and then runs the enter animation. Once\n         * the animation is started, the following CSS classes will be present on the element for the duration of the animation:\n         *\n         * Below is a breakdown of each step that occurs during enter animation:\n         *\n         * | Animation Step                                                                               | What the element class attribute looks like |\n         * |----------------------------------------------------------------------------------------------|---------------------------------------------|\n         * | 1. $animate.enter(...) is called                                                             | class=\"my-animation\"                        |\n         * | 2. element is inserted into the parentElement element or beside the afterElement element     | class=\"my-animation\"                        |\n         * | 3. $animate runs any JavaScript-defined animations on the element                            | class=\"my-animation ng-animate\"             |\n         * | 4. the .ng-enter class is added to the element                                               | class=\"my-animation ng-animate ng-enter\"    |\n         * | 5. $animate scans the element styles to get the CSS transition/animation duration and delay  | class=\"my-animation ng-animate ng-enter\"    |\n         * | 6. $animate waits for 10ms (this performs a reflow)                                          | class=\"my-animation ng-animate ng-enter\"    |\n         * | 7. the .ng-enter-active and .ng-animate-active classes are added (this triggers the CSS transition/animation) | class=\"my-animation ng-animate ng-animate-active ng-enter ng-enter-active\" |\n         * | 8. $animate waits for X milliseconds for the animation to complete                           | class=\"my-animation ng-animate ng-animate-active ng-enter ng-enter-active\" |\n         * | 9. The animation ends and all generated CSS classes are removed from the element             | class=\"my-animation\"                        |\n         * | 10. The doneCallback() callback is fired (if provided)                                       | class=\"my-animation\"                        |\n         *\n         * @param {DOMElement} element the element that will be the focus of the enter animation\n         * @param {DOMElement} parentElement the parent element of the element that will be the focus of the enter animation\n         * @param {DOMElement} afterElement the sibling element (which is the previous element) of the element that will be the focus of the enter animation\n         * @param {function()=} doneCallback the callback function that will be called once the animation is complete\n        */\n        enter : function(element, parentElement, afterElement, doneCallback) {\n          element = angular.element(element);\n          parentElement = prepareElement(parentElement);\n          afterElement = prepareElement(afterElement);\n\n          blockElementAnimations(element);\n          $delegate.enter(element, parentElement, afterElement);\n          $rootScope.$$postDigest(function() {\n            element = stripCommentsFromElement(element);\n            performAnimation('enter', 'ng-enter', element, parentElement, afterElement, noop, doneCallback);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#leave\n         * @kind function\n         *\n         * @description\n         * Runs the leave animation operation and, upon completion, removes the element from the DOM. Once\n         * the animation is started, the following CSS classes will be added for the duration of the animation:\n         *\n         * Below is a breakdown of each step that occurs during leave animation:\n         *\n         * | Animation Step                                                                               | What the element class attribute looks like |\n         * |----------------------------------------------------------------------------------------------|---------------------------------------------|\n         * | 1. $animate.leave(...) is called                                                             | class=\"my-animation\"                        |\n         * | 2. $animate runs any JavaScript-defined animations on the element                            | class=\"my-animation ng-animate\"             |\n         * | 3. the .ng-leave class is added to the element                                               | class=\"my-animation ng-animate ng-leave\"    |\n         * | 4. $animate scans the element styles to get the CSS transition/animation duration and delay  | class=\"my-animation ng-animate ng-leave\"    |\n         * | 5. $animate waits for 10ms (this performs a reflow)                                          | class=\"my-animation ng-animate ng-leave\"    |\n         * | 6. the .ng-leave-active and .ng-animate-active classes is added (this triggers the CSS transition/animation) | class=\"my-animation ng-animate ng-animate-active ng-leave ng-leave-active\" |\n         * | 7. $animate waits for X milliseconds for the animation to complete                           | class=\"my-animation ng-animate ng-animate-active ng-leave ng-leave-active\" |\n         * | 8. The animation ends and all generated CSS classes are removed from the element             | class=\"my-animation\"                        |\n         * | 9. The element is removed from the DOM                                                       | ...                                         |\n         * | 10. The doneCallback() callback is fired (if provided)                                       | ...                                         |\n         *\n         * @param {DOMElement} element the element that will be the focus of the leave animation\n         * @param {function()=} doneCallback the callback function that will be called once the animation is complete\n        */\n        leave : function(element, doneCallback) {\n          element = angular.element(element);\n          cancelChildAnimations(element);\n          blockElementAnimations(element);\n          $rootScope.$$postDigest(function() {\n            performAnimation('leave', 'ng-leave', stripCommentsFromElement(element), null, null, function() {\n              $delegate.leave(element);\n            }, doneCallback);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#move\n         * @kind function\n         *\n         * @description\n         * Fires the move DOM operation. Just before the animation starts, the animate service will either append it into the parentElement container or\n         * add the element directly after the afterElement element if present. Then the move animation will be run. Once\n         * the animation is started, the following CSS classes will be added for the duration of the animation:\n         *\n         * Below is a breakdown of each step that occurs during move animation:\n         *\n         * | Animation Step                                                                               | What the element class attribute looks like |\n         * |----------------------------------------------------------------------------------------------|---------------------------------------------|\n         * | 1. $animate.move(...) is called                                                              | class=\"my-animation\"                        |\n         * | 2. element is moved into the parentElement element or beside the afterElement element        | class=\"my-animation\"                        |\n         * | 3. $animate runs any JavaScript-defined animations on the element                            | class=\"my-animation ng-animate\"             |\n         * | 4. the .ng-move class is added to the element                                                | class=\"my-animation ng-animate ng-move\"     |\n         * | 5. $animate scans the element styles to get the CSS transition/animation duration and delay  | class=\"my-animation ng-animate ng-move\"     |\n         * | 6. $animate waits for 10ms (this performs a reflow)                                          | class=\"my-animation ng-animate ng-move\"     |\n         * | 7. the .ng-move-active and .ng-animate-active classes is added (this triggers the CSS transition/animation) | class=\"my-animation ng-animate ng-animate-active ng-move ng-move-active\" |\n         * | 8. $animate waits for X milliseconds for the animation to complete                           | class=\"my-animation ng-animate ng-animate-active ng-move ng-move-active\" |\n         * | 9. The animation ends and all generated CSS classes are removed from the element             | class=\"my-animation\"                        |\n         * | 10. The doneCallback() callback is fired (if provided)                                       | class=\"my-animation\"                        |\n         *\n         * @param {DOMElement} element the element that will be the focus of the move animation\n         * @param {DOMElement} parentElement the parentElement element of the element that will be the focus of the move animation\n         * @param {DOMElement} afterElement the sibling element (which is the previous element) of the element that will be the focus of the move animation\n         * @param {function()=} doneCallback the callback function that will be called once the animation is complete\n        */\n        move : function(element, parentElement, afterElement, doneCallback) {\n          element = angular.element(element);\n          parentElement = prepareElement(parentElement);\n          afterElement = prepareElement(afterElement);\n\n          cancelChildAnimations(element);\n          blockElementAnimations(element);\n          $delegate.move(element, parentElement, afterElement);\n          $rootScope.$$postDigest(function() {\n            element = stripCommentsFromElement(element);\n            performAnimation('move', 'ng-move', element, parentElement, afterElement, noop, doneCallback);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#addClass\n         *\n         * @description\n         * Triggers a custom animation event based off the className variable and then attaches the className value to the element as a CSS class.\n         * Unlike the other animation methods, the animate service will suffix the className value with {@type -add} in order to provide\n         * the animate service the setup and active CSS classes in order to trigger the animation (this will be skipped if no CSS transitions\n         * or keyframes are defined on the -add or base CSS class).\n         *\n         * Below is a breakdown of each step that occurs during addClass animation:\n         *\n         * | Animation Step                                                                                 | What the element class attribute looks like |\n         * |------------------------------------------------------------------------------------------------|---------------------------------------------|\n         * | 1. $animate.addClass(element, 'super') is called                                               | class=\"my-animation\"                        |\n         * | 2. $animate runs any JavaScript-defined animations on the element                              | class=\"my-animation ng-animate\"             |\n         * | 3. the .super-add class are added to the element                                               | class=\"my-animation ng-animate super-add\"   |\n         * | 4. $animate scans the element styles to get the CSS transition/animation duration and delay    | class=\"my-animation ng-animate super-add\"   |\n         * | 5. $animate waits for 10ms (this performs a reflow)                                            | class=\"my-animation ng-animate super-add\"   |\n         * | 6. the .super, .super-add-active and .ng-animate-active classes are added (this triggers the CSS transition/animation) | class=\"my-animation ng-animate ng-animate-active super super-add super-add-active\"          |\n         * | 7. $animate waits for X milliseconds for the animation to complete                             | class=\"my-animation super super-add super-add-active\"  |\n         * | 8. The animation ends and all generated CSS classes are removed from the element               | class=\"my-animation super\"                  |\n         * | 9. The super class is kept on the element                                                      | class=\"my-animation super\"                  |\n         * | 10. The doneCallback() callback is fired (if provided)                                         | class=\"my-animation super\"                  |\n         *\n         * @param {DOMElement} element the element that will be animated\n         * @param {string} className the CSS class that will be added to the element and then animated\n         * @param {function()=} doneCallback the callback function that will be called once the animation is complete\n        */\n        addClass : function(element, className, doneCallback) {\n          element = angular.element(element);\n          element = stripCommentsFromElement(element);\n          performAnimation('addClass', className, element, null, null, function() {\n            $delegate.addClass(element, className);\n          }, doneCallback);\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#removeClass\n         *\n         * @description\n         * Triggers a custom animation event based off the className variable and then removes the CSS class provided by the className value\n         * from the element. Unlike the other animation methods, the animate service will suffix the className value with {@type -remove} in\n         * order to provide the animate service the setup and active CSS classes in order to trigger the animation (this will be skipped if\n         * no CSS transitions or keyframes are defined on the -remove or base CSS classes).\n         *\n         * Below is a breakdown of each step that occurs during removeClass animation:\n         *\n         * | Animation Step                                                                                | What the element class attribute looks like     |\n         * |-----------------------------------------------------------------------------------------------|---------------------------------------------|\n         * | 1. $animate.removeClass(element, 'super') is called                                           | class=\"my-animation super\"                  |\n         * | 2. $animate runs any JavaScript-defined animations on the element                             | class=\"my-animation super ng-animate\"       |\n         * | 3. the .super-remove class are added to the element                                           | class=\"my-animation super ng-animate super-remove\"|\n         * | 4. $animate scans the element styles to get the CSS transition/animation duration and delay   | class=\"my-animation super ng-animate super-remove\"   |\n         * | 5. $animate waits for 10ms (this performs a reflow)                                           | class=\"my-animation super ng-animate super-remove\"   |\n         * | 6. the .super-remove-active and .ng-animate-active classes are added and .super is removed (this triggers the CSS transition/animation) | class=\"my-animation ng-animate ng-animate-active super-remove super-remove-active\"          |\n         * | 7. $animate waits for X milliseconds for the animation to complete                            | class=\"my-animation ng-animate ng-animate-active super-remove super-remove-active\"   |\n         * | 8. The animation ends and all generated CSS classes are removed from the element              | class=\"my-animation\"                        |\n         * | 9. The doneCallback() callback is fired (if provided)                                         | class=\"my-animation\"                        |\n         *\n         *\n         * @param {DOMElement} element the element that will be animated\n         * @param {string} className the CSS class that will be animated and then removed from the element\n         * @param {function()=} doneCallback the callback function that will be called once the animation is complete\n        */\n        removeClass : function(element, className, doneCallback) {\n          element = angular.element(element);\n          element = stripCommentsFromElement(element);\n          performAnimation('removeClass', className, element, null, null, function() {\n            $delegate.removeClass(element, className);\n          }, doneCallback);\n        },\n\n          /**\n           *\n           * @ngdoc function\n           * @name $animate#setClass\n           * @function\n           * @description Adds and/or removes the given CSS classes to and from the element.\n           * Once complete, the done() callback will be fired (if provided).\n           * @param {DOMElement} element the element which will its CSS classes changed\n           *   removed from it\n           * @param {string} add the CSS classes which will be added to the element\n           * @param {string} remove the CSS class which will be removed from the element\n           * @param {Function=} done the callback function (if provided) that will be fired after the\n           *   CSS classes have been set on the element\n           */\n        setClass : function(element, add, remove, doneCallback) {\n          element = angular.element(element);\n          element = stripCommentsFromElement(element);\n          performAnimation('setClass', [add, remove], element, null, null, function() {\n            $delegate.setClass(element, add, remove);\n          }, doneCallback);\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#enabled\n         * @kind function\n         *\n         * @param {boolean=} value If provided then set the animation on or off.\n         * @param {DOMElement=} element If provided then the element will be used to represent the enable/disable operation\n         * @return {boolean} Current animation state.\n         *\n         * @description\n         * Globally enables/disables animations.\n         *\n        */\n        enabled : function(value, element) {\n          switch(arguments.length) {\n            case 2:\n              if(value) {\n                cleanup(element);\n              } else {\n                var data = element.data(NG_ANIMATE_STATE) || {};\n                data.disabled = true;\n                element.data(NG_ANIMATE_STATE, data);\n              }\n            break;\n\n            case 1:\n              rootAnimateState.disabled = !value;\n            break;\n\n            default:\n              value = !rootAnimateState.disabled;\n            break;\n          }\n          return !!value;\n         }\n      };\n\n      /*\n        all animations call this shared animation triggering function internally.\n        The animationEvent variable refers to the JavaScript animation event that will be triggered\n        and the className value is the name of the animation that will be applied within the\n        CSS code. Element, parentElement and afterElement are provided DOM elements for the animation\n        and the onComplete callback will be fired once the animation is fully complete.\n      */\n      function performAnimation(animationEvent, className, element, parentElement, afterElement, domOperation, doneCallback) {\n\n        var runner = animationRunner(element, animationEvent, className);\n        if(!runner) {\n          fireDOMOperation();\n          fireBeforeCallbackAsync();\n          fireAfterCallbackAsync();\n          closeAnimation();\n          return;\n        }\n\n        className = runner.className;\n        var elementEvents = angular.element._data(runner.node);\n        elementEvents = elementEvents && elementEvents.events;\n\n        if (!parentElement) {\n          parentElement = afterElement ? afterElement.parent() : element.parent();\n        }\n\n        var ngAnimateState  = element.data(NG_ANIMATE_STATE) || {};\n        var runningAnimations     = ngAnimateState.active || {};\n        var totalActiveAnimations = ngAnimateState.totalActive || 0;\n        var lastAnimation         = ngAnimateState.last;\n\n        //only allow animations if the currently running animation is not structural\n        //or if there is no animation running at all\n        var skipAnimations;\n        if (runner.isClassBased) {\n          skipAnimations = ngAnimateState.running ||\n                           ngAnimateState.disabled ||\n                           (lastAnimation && !lastAnimation.isClassBased);\n        }\n\n        //skip the animation if animations are disabled, a parent is already being animated,\n        //the element is not currently attached to the document body or then completely close\n        //the animation if any matching animations are not found at all.\n        //NOTE: IE8 + IE9 should close properly (run closeAnimation()) in case an animation was found.\n        if (skipAnimations || animationsDisabled(element, parentElement)) {\n          fireDOMOperation();\n          fireBeforeCallbackAsync();\n          fireAfterCallbackAsync();\n          closeAnimation();\n          return;\n        }\n\n        var skipAnimation = false;\n        if(totalActiveAnimations > 0) {\n          var animationsToCancel = [];\n          if(!runner.isClassBased) {\n            if(animationEvent == 'leave' && runningAnimations['ng-leave']) {\n              skipAnimation = true;\n            } else {\n              //cancel all animations when a structural animation takes place\n              for(var klass in runningAnimations) {\n                animationsToCancel.push(runningAnimations[klass]);\n                cleanup(element, klass);\n              }\n              runningAnimations = {};\n              totalActiveAnimations = 0;\n            }\n          } else if(lastAnimation.event == 'setClass') {\n            animationsToCancel.push(lastAnimation);\n            cleanup(element, className);\n          }\n          else if(runningAnimations[className]) {\n            var current = runningAnimations[className];\n            if(current.event == animationEvent) {\n              skipAnimation = true;\n            } else {\n              animationsToCancel.push(current);\n              cleanup(element, className);\n            }\n          }\n\n          if(animationsToCancel.length > 0) {\n            forEach(animationsToCancel, function(operation) {\n              operation.cancel();\n            });\n          }\n        }\n\n        if(runner.isClassBased && !runner.isSetClassOperation && !skipAnimation) {\n          skipAnimation = (animationEvent == 'addClass') == element.hasClass(className); //opposite of XOR\n        }\n\n        if(skipAnimation) {\n          fireDOMOperation();\n          fireBeforeCallbackAsync();\n          fireAfterCallbackAsync();\n          fireDoneCallbackAsync();\n          return;\n        }\n\n        if(animationEvent == 'leave') {\n          //there's no need to ever remove the listener since the element\n          //will be removed (destroyed) after the leave animation ends or\n          //is cancelled midway\n          element.one('$destroy', function(e) {\n            var element = angular.element(this);\n            var state = element.data(NG_ANIMATE_STATE);\n            if(state) {\n              var activeLeaveAnimation = state.active['ng-leave'];\n              if(activeLeaveAnimation) {\n                activeLeaveAnimation.cancel();\n                cleanup(element, 'ng-leave');\n              }\n            }\n          });\n        }\n\n        //the ng-animate class does nothing, but it's here to allow for\n        //parent animations to find and cancel child animations when needed\n        element.addClass(NG_ANIMATE_CLASS_NAME);\n\n        var localAnimationCount = globalAnimationCounter++;\n        totalActiveAnimations++;\n        runningAnimations[className] = runner;\n\n        element.data(NG_ANIMATE_STATE, {\n          last : runner,\n          active : runningAnimations,\n          index : localAnimationCount,\n          totalActive : totalActiveAnimations\n        });\n\n        //first we run the before animations and when all of those are complete\n        //then we perform the DOM operation and run the next set of animations\n        fireBeforeCallbackAsync();\n        runner.before(function(cancelled) {\n          var data = element.data(NG_ANIMATE_STATE);\n          cancelled = cancelled ||\n                        !data || !data.active[className] ||\n                        (runner.isClassBased && data.active[className].event != animationEvent);\n\n          fireDOMOperation();\n          if(cancelled === true) {\n            closeAnimation();\n          } else {\n            fireAfterCallbackAsync();\n            runner.after(closeAnimation);\n          }\n        });\n\n        function fireDOMCallback(animationPhase) {\n          var eventName = '$animate:' + animationPhase;\n          if(elementEvents && elementEvents[eventName] && elementEvents[eventName].length > 0) {\n            $$asyncCallback(function() {\n              element.triggerHandler(eventName, {\n                event : animationEvent,\n                className : className\n              });\n            });\n          }\n        }\n\n        function fireBeforeCallbackAsync() {\n          fireDOMCallback('before');\n        }\n\n        function fireAfterCallbackAsync() {\n          fireDOMCallback('after');\n        }\n\n        function fireDoneCallbackAsync() {\n          fireDOMCallback('close');\n          if(doneCallback) {\n            $$asyncCallback(function() {\n              doneCallback();\n            });\n          }\n        }\n\n        //it is less complicated to use a flag than managing and canceling\n        //timeouts containing multiple callbacks.\n        function fireDOMOperation() {\n          if(!fireDOMOperation.hasBeenRun) {\n            fireDOMOperation.hasBeenRun = true;\n            domOperation();\n          }\n        }\n\n        function closeAnimation() {\n          if(!closeAnimation.hasBeenRun) {\n            closeAnimation.hasBeenRun = true;\n            var data = element.data(NG_ANIMATE_STATE);\n            if(data) {\n              /* only structural animations wait for reflow before removing an\n                 animation, but class-based animations don't. An example of this\n                 failing would be when a parent HTML tag has a ng-class attribute\n                 causing ALL directives below to skip animations during the digest */\n              if(runner && runner.isClassBased) {\n                cleanup(element, className);\n              } else {\n                $$asyncCallback(function() {\n                  var data = element.data(NG_ANIMATE_STATE) || {};\n                  if(localAnimationCount == data.index) {\n                    cleanup(element, className, animationEvent);\n                  }\n                });\n                element.data(NG_ANIMATE_STATE, data);\n              }\n            }\n            fireDoneCallbackAsync();\n          }\n        }\n      }\n\n      function cancelChildAnimations(element) {\n        var node = extractElementNode(element);\n        if (node) {\n          var nodes = angular.isFunction(node.getElementsByClassName) ?\n            node.getElementsByClassName(NG_ANIMATE_CLASS_NAME) :\n            node.querySelectorAll('.' + NG_ANIMATE_CLASS_NAME);\n          forEach(nodes, function(element) {\n            element = angular.element(element);\n            var data = element.data(NG_ANIMATE_STATE);\n            if(data && data.active) {\n              forEach(data.active, function(runner) {\n                runner.cancel();\n              });\n            }\n          });\n        }\n      }\n\n      function cleanup(element, className) {\n        if(isMatchingElement(element, $rootElement)) {\n          if(!rootAnimateState.disabled) {\n            rootAnimateState.running = false;\n            rootAnimateState.structural = false;\n          }\n        } else if(className) {\n          var data = element.data(NG_ANIMATE_STATE) || {};\n\n          var removeAnimations = className === true;\n          if(!removeAnimations && data.active && data.active[className]) {\n            data.totalActive--;\n            delete data.active[className];\n          }\n\n          if(removeAnimations || !data.totalActive) {\n            element.removeClass(NG_ANIMATE_CLASS_NAME);\n            element.removeData(NG_ANIMATE_STATE);\n          }\n        }\n      }\n\n      function animationsDisabled(element, parentElement) {\n        if (rootAnimateState.disabled) {\n          return true;\n        }\n\n        if (isMatchingElement(element, $rootElement)) {\n          return rootAnimateState.running;\n        }\n\n        var allowChildAnimations, parentRunningAnimation, hasParent;\n        do {\n          //the element did not reach the root element which means that it\n          //is not apart of the DOM. Therefore there is no reason to do\n          //any animations on it\n          if (parentElement.length === 0) break;\n\n          var isRoot = isMatchingElement(parentElement, $rootElement);\n          var state = isRoot ? rootAnimateState : (parentElement.data(NG_ANIMATE_STATE) || {});\n          if (state.disabled) {\n            return true;\n          }\n\n          //no matter what, for an animation to work it must reach the root element\n          //this implies that the element is attached to the DOM when the animation is run\n          if (isRoot) {\n            hasParent = true;\n          }\n\n          //once a flag is found that is strictly false then everything before\n          //it will be discarded and all child animations will be restricted\n          if (allowChildAnimations !== false) {\n            var animateChildrenFlag = parentElement.data(NG_ANIMATE_CHILDREN);\n            if(angular.isDefined(animateChildrenFlag)) {\n              allowChildAnimations = animateChildrenFlag;\n            }\n          }\n\n          parentRunningAnimation = parentRunningAnimation ||\n                                   state.running ||\n                                   (state.last && !state.last.isClassBased);\n        }\n        while(parentElement = parentElement.parent());\n\n        return !hasParent || (!allowChildAnimations && parentRunningAnimation);\n      }\n    }]);\n\n    $animateProvider.register('', ['$window', '$sniffer', '$timeout', '$$animateReflow',\n                           function($window,   $sniffer,   $timeout,   $$animateReflow) {\n      // Detect proper transitionend/animationend event names.\n      var CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;\n\n      // If unprefixed events are not supported but webkit-prefixed are, use the latter.\n      // Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.\n      // Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`\n      // but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.\n      // Register both events in case `window.onanimationend` is not supported because of that,\n      // do the same for `transitionend` as Safari is likely to exhibit similar behavior.\n      // Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit\n      // therefore there is no reason to test anymore for other vendor prefixes: http://caniuse.com/#search=transition\n      if (window.ontransitionend === undefined && window.onwebkittransitionend !== undefined) {\n        CSS_PREFIX = '-webkit-';\n        TRANSITION_PROP = 'WebkitTransition';\n        TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';\n      } else {\n        TRANSITION_PROP = 'transition';\n        TRANSITIONEND_EVENT = 'transitionend';\n      }\n\n      if (window.onanimationend === undefined && window.onwebkitanimationend !== undefined) {\n        CSS_PREFIX = '-webkit-';\n        ANIMATION_PROP = 'WebkitAnimation';\n        ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';\n      } else {\n        ANIMATION_PROP = 'animation';\n        ANIMATIONEND_EVENT = 'animationend';\n      }\n\n      var DURATION_KEY = 'Duration';\n      var PROPERTY_KEY = 'Property';\n      var DELAY_KEY = 'Delay';\n      var ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';\n      var NG_ANIMATE_PARENT_KEY = '$$ngAnimateKey';\n      var NG_ANIMATE_CSS_DATA_KEY = '$$ngAnimateCSS3Data';\n      var NG_ANIMATE_BLOCK_CLASS_NAME = 'ng-animate-block-transitions';\n      var ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\n      var CLOSING_TIME_BUFFER = 1.5;\n      var ONE_SECOND = 1000;\n\n      var lookupCache = {};\n      var parentCounter = 0;\n      var animationReflowQueue = [];\n      var cancelAnimationReflow;\n      function clearCacheAfterReflow() {\n        if (!cancelAnimationReflow) {\n          cancelAnimationReflow = $$animateReflow(function() {\n            animationReflowQueue = [];\n            cancelAnimationReflow = null;\n            lookupCache = {};\n          });\n        }\n      }\n\n      function afterReflow(element, callback) {\n        if(cancelAnimationReflow) {\n          cancelAnimationReflow();\n        }\n        animationReflowQueue.push(callback);\n        cancelAnimationReflow = $$animateReflow(function() {\n          forEach(animationReflowQueue, function(fn) {\n            fn();\n          });\n\n          animationReflowQueue = [];\n          cancelAnimationReflow = null;\n          lookupCache = {};\n        });\n      }\n\n      var closingTimer = null;\n      var closingTimestamp = 0;\n      var animationElementQueue = [];\n      function animationCloseHandler(element, totalTime) {\n        var node = extractElementNode(element);\n        element = angular.element(node);\n\n        //this item will be garbage collected by the closing\n        //animation timeout\n        animationElementQueue.push(element);\n\n        //but it may not need to cancel out the existing timeout\n        //if the timestamp is less than the previous one\n        var futureTimestamp = Date.now() + totalTime;\n        if(futureTimestamp <= closingTimestamp) {\n          return;\n        }\n\n        $timeout.cancel(closingTimer);\n\n        closingTimestamp = futureTimestamp;\n        closingTimer = $timeout(function() {\n          closeAllAnimations(animationElementQueue);\n          animationElementQueue = [];\n        }, totalTime, false);\n      }\n\n      function closeAllAnimations(elements) {\n        forEach(elements, function(element) {\n          var elementData = element.data(NG_ANIMATE_CSS_DATA_KEY);\n          if(elementData) {\n            (elementData.closeAnimationFn || noop)();\n          }\n        });\n      }\n\n      function getElementAnimationDetails(element, cacheKey) {\n        var data = cacheKey ? lookupCache[cacheKey] : null;\n        if(!data) {\n          var transitionDuration = 0;\n          var transitionDelay = 0;\n          var animationDuration = 0;\n          var animationDelay = 0;\n          var transitionDelayStyle;\n          var animationDelayStyle;\n          var transitionDurationStyle;\n          var transitionPropertyStyle;\n\n          //we want all the styles defined before and after\n          forEach(element, function(element) {\n            if (element.nodeType == ELEMENT_NODE) {\n              var elementStyles = $window.getComputedStyle(element) || {};\n\n              transitionDurationStyle = elementStyles[TRANSITION_PROP + DURATION_KEY];\n\n              transitionDuration = Math.max(parseMaxTime(transitionDurationStyle), transitionDuration);\n\n              transitionPropertyStyle = elementStyles[TRANSITION_PROP + PROPERTY_KEY];\n\n              transitionDelayStyle = elementStyles[TRANSITION_PROP + DELAY_KEY];\n\n              transitionDelay  = Math.max(parseMaxTime(transitionDelayStyle), transitionDelay);\n\n              animationDelayStyle = elementStyles[ANIMATION_PROP + DELAY_KEY];\n\n              animationDelay   = Math.max(parseMaxTime(animationDelayStyle), animationDelay);\n\n              var aDuration  = parseMaxTime(elementStyles[ANIMATION_PROP + DURATION_KEY]);\n\n              if(aDuration > 0) {\n                aDuration *= parseInt(elementStyles[ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY], 10) || 1;\n              }\n\n              animationDuration = Math.max(aDuration, animationDuration);\n            }\n          });\n          data = {\n            total : 0,\n            transitionPropertyStyle: transitionPropertyStyle,\n            transitionDurationStyle: transitionDurationStyle,\n            transitionDelayStyle: transitionDelayStyle,\n            transitionDelay: transitionDelay,\n            transitionDuration: transitionDuration,\n            animationDelayStyle: animationDelayStyle,\n            animationDelay: animationDelay,\n            animationDuration: animationDuration\n          };\n          if(cacheKey) {\n            lookupCache[cacheKey] = data;\n          }\n        }\n        return data;\n      }\n\n      function parseMaxTime(str) {\n        var maxValue = 0;\n        var values = angular.isString(str) ?\n          str.split(/\\s*,\\s*/) :\n          [];\n        forEach(values, function(value) {\n          maxValue = Math.max(parseFloat(value) || 0, maxValue);\n        });\n        return maxValue;\n      }\n\n      function getCacheKey(element) {\n        var parentElement = element.parent();\n        var parentID = parentElement.data(NG_ANIMATE_PARENT_KEY);\n        if(!parentID) {\n          parentElement.data(NG_ANIMATE_PARENT_KEY, ++parentCounter);\n          parentID = parentCounter;\n        }\n        return parentID + '-' + extractElementNode(element).getAttribute('class');\n      }\n\n      function animateSetup(animationEvent, element, className, calculationDecorator) {\n        var cacheKey = getCacheKey(element);\n        var eventCacheKey = cacheKey + ' ' + className;\n        var itemIndex = lookupCache[eventCacheKey] ? ++lookupCache[eventCacheKey].total : 0;\n\n        var stagger = {};\n        if(itemIndex > 0) {\n          var staggerClassName = className + '-stagger';\n          var staggerCacheKey = cacheKey + ' ' + staggerClassName;\n          var applyClasses = !lookupCache[staggerCacheKey];\n\n          applyClasses && element.addClass(staggerClassName);\n\n          stagger = getElementAnimationDetails(element, staggerCacheKey);\n\n          applyClasses && element.removeClass(staggerClassName);\n        }\n\n        /* the animation itself may need to add/remove special CSS classes\n         * before calculating the anmation styles */\n        calculationDecorator = calculationDecorator ||\n                               function(fn) { return fn(); };\n\n        element.addClass(className);\n\n        var formerData = element.data(NG_ANIMATE_CSS_DATA_KEY) || {};\n\n        var timings = calculationDecorator(function() {\n          return getElementAnimationDetails(element, eventCacheKey);\n        });\n\n        var transitionDuration = timings.transitionDuration;\n        var animationDuration = timings.animationDuration;\n        if(transitionDuration === 0 && animationDuration === 0) {\n          element.removeClass(className);\n          return false;\n        }\n\n        element.data(NG_ANIMATE_CSS_DATA_KEY, {\n          running : formerData.running || 0,\n          itemIndex : itemIndex,\n          stagger : stagger,\n          timings : timings,\n          closeAnimationFn : noop\n        });\n\n        //temporarily disable the transition so that the enter styles\n        //don't animate twice (this is here to avoid a bug in Chrome/FF).\n        var isCurrentlyAnimating = formerData.running > 0 || animationEvent == 'setClass';\n        if(transitionDuration > 0) {\n          blockTransitions(element, className, isCurrentlyAnimating);\n        }\n\n        //staggering keyframe animations work by adjusting the `animation-delay` CSS property\n        //on the given element, however, the delay value can only calculated after the reflow\n        //since by that time $animate knows how many elements are being animated. Therefore,\n        //until the reflow occurs the element needs to be blocked (where the keyframe animation\n        //is set to `none 0s`). This blocking mechanism should only be set for when a stagger\n        //animation is detected and when the element item index is greater than 0.\n        if(animationDuration > 0 && stagger.animationDelay > 0 && stagger.animationDuration === 0) {\n          blockKeyframeAnimations(element);\n        }\n\n        return true;\n      }\n\n      function isStructuralAnimation(className) {\n        return className == 'ng-enter' || className == 'ng-move' || className == 'ng-leave';\n      }\n\n      function blockTransitions(element, className, isAnimating) {\n        if(isStructuralAnimation(className) || !isAnimating) {\n          extractElementNode(element).style[TRANSITION_PROP + PROPERTY_KEY] = 'none';\n        } else {\n          element.addClass(NG_ANIMATE_BLOCK_CLASS_NAME);\n        }\n      }\n\n      function blockKeyframeAnimations(element) {\n        extractElementNode(element).style[ANIMATION_PROP] = 'none 0s';\n      }\n\n      function unblockTransitions(element, className) {\n        var prop = TRANSITION_PROP + PROPERTY_KEY;\n        var node = extractElementNode(element);\n        if(node.style[prop] && node.style[prop].length > 0) {\n          node.style[prop] = '';\n        }\n        element.removeClass(NG_ANIMATE_BLOCK_CLASS_NAME);\n      }\n\n      function unblockKeyframeAnimations(element) {\n        var prop = ANIMATION_PROP;\n        var node = extractElementNode(element);\n        if(node.style[prop] && node.style[prop].length > 0) {\n          node.style[prop] = '';\n        }\n      }\n\n      function animateRun(animationEvent, element, className, activeAnimationComplete) {\n        var node = extractElementNode(element);\n        var elementData = element.data(NG_ANIMATE_CSS_DATA_KEY);\n        if(node.getAttribute('class').indexOf(className) == -1 || !elementData) {\n          activeAnimationComplete();\n          return;\n        }\n\n        var activeClassName = '';\n        forEach(className.split(' '), function(klass, i) {\n          activeClassName += (i > 0 ? ' ' : '') + klass + '-active';\n        });\n\n        var stagger = elementData.stagger;\n        var timings = elementData.timings;\n        var itemIndex = elementData.itemIndex;\n        var maxDuration = Math.max(timings.transitionDuration, timings.animationDuration);\n        var maxDelay = Math.max(timings.transitionDelay, timings.animationDelay);\n        var maxDelayTime = maxDelay * ONE_SECOND;\n\n        var startTime = Date.now();\n        var css3AnimationEvents = ANIMATIONEND_EVENT + ' ' + TRANSITIONEND_EVENT;\n\n        var style = '', appliedStyles = [];\n        if(timings.transitionDuration > 0) {\n          var propertyStyle = timings.transitionPropertyStyle;\n          if(propertyStyle.indexOf('all') == -1) {\n            style += CSS_PREFIX + 'transition-property: ' + propertyStyle + ';';\n            style += CSS_PREFIX + 'transition-duration: ' + timings.transitionDurationStyle + ';';\n            appliedStyles.push(CSS_PREFIX + 'transition-property');\n            appliedStyles.push(CSS_PREFIX + 'transition-duration');\n          }\n        }\n\n        if(itemIndex > 0) {\n          if(stagger.transitionDelay > 0 && stagger.transitionDuration === 0) {\n            var delayStyle = timings.transitionDelayStyle;\n            style += CSS_PREFIX + 'transition-delay: ' +\n                     prepareStaggerDelay(delayStyle, stagger.transitionDelay, itemIndex) + '; ';\n            appliedStyles.push(CSS_PREFIX + 'transition-delay');\n          }\n\n          if(stagger.animationDelay > 0 && stagger.animationDuration === 0) {\n            style += CSS_PREFIX + 'animation-delay: ' +\n                     prepareStaggerDelay(timings.animationDelayStyle, stagger.animationDelay, itemIndex) + '; ';\n            appliedStyles.push(CSS_PREFIX + 'animation-delay');\n          }\n        }\n\n        if(appliedStyles.length > 0) {\n          //the element being animated may sometimes contain comment nodes in\n          //the jqLite object, so we're safe to use a single variable to house\n          //the styles since there is always only one element being animated\n          var oldStyle = node.getAttribute('style') || '';\n          node.setAttribute('style', oldStyle + '; ' + style);\n        }\n\n        element.on(css3AnimationEvents, onAnimationProgress);\n        element.addClass(activeClassName);\n        elementData.closeAnimationFn = function() {\n          onEnd();\n          activeAnimationComplete();\n        };\n\n        var staggerTime       = itemIndex * (Math.max(stagger.animationDelay, stagger.transitionDelay) || 0);\n        var animationTime     = (maxDelay + maxDuration) * CLOSING_TIME_BUFFER;\n        var totalTime         = (staggerTime + animationTime) * ONE_SECOND;\n\n        elementData.running++;\n        animationCloseHandler(element, totalTime);\n        return onEnd;\n\n        // This will automatically be called by $animate so\n        // there is no need to attach this internally to the\n        // timeout done method.\n        function onEnd(cancelled) {\n          element.off(css3AnimationEvents, onAnimationProgress);\n          element.removeClass(activeClassName);\n          animateClose(element, className);\n          var node = extractElementNode(element);\n          for (var i in appliedStyles) {\n            node.style.removeProperty(appliedStyles[i]);\n          }\n        }\n\n        function onAnimationProgress(event) {\n          event.stopPropagation();\n          var ev = event.originalEvent || event;\n          var timeStamp = ev.$manualTimeStamp || Date.now();\n\n          /* Firefox (or possibly just Gecko) likes to not round values up\n           * when a ms measurement is used for the animation */\n          var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));\n\n          /* $manualTimeStamp is a mocked timeStamp value which is set\n           * within browserTrigger(). This is only here so that tests can\n           * mock animations properly. Real events fallback to Date.now(),\n           * or, if they don't, then a timeStamp is automatically created for them.\n           * We're checking to see if the timeStamp surpasses the expected delay,\n           * but we're using elapsedTime instead of the timeStamp on the 2nd\n           * pre-condition since animations sometimes close off early */\n          if(Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n            activeAnimationComplete();\n          }\n        }\n      }\n\n      function prepareStaggerDelay(delayStyle, staggerDelay, index) {\n        var style = '';\n        forEach(delayStyle.split(','), function(val, i) {\n          style += (i > 0 ? ',' : '') +\n                   (index * staggerDelay + parseInt(val, 10)) + 's';\n        });\n        return style;\n      }\n\n      function animateBefore(animationEvent, element, className, calculationDecorator) {\n        if(animateSetup(animationEvent, element, className, calculationDecorator)) {\n          return function(cancelled) {\n            cancelled && animateClose(element, className);\n          };\n        }\n      }\n\n      function animateAfter(animationEvent, element, className, afterAnimationComplete) {\n        if(element.data(NG_ANIMATE_CSS_DATA_KEY)) {\n          return animateRun(animationEvent, element, className, afterAnimationComplete);\n        } else {\n          animateClose(element, className);\n          afterAnimationComplete();\n        }\n      }\n\n      function animate(animationEvent, element, className, animationComplete) {\n        //If the animateSetup function doesn't bother returning a\n        //cancellation function then it means that there is no animation\n        //to perform at all\n        var preReflowCancellation = animateBefore(animationEvent, element, className);\n        if (!preReflowCancellation) {\n          clearCacheAfterReflow();\n          animationComplete();\n          return;\n        }\n\n        //There are two cancellation functions: one is before the first\n        //reflow animation and the second is during the active state\n        //animation. The first function will take care of removing the\n        //data from the element which will not make the 2nd animation\n        //happen in the first place\n        var cancel = preReflowCancellation;\n        afterReflow(element, function() {\n          unblockTransitions(element, className);\n          unblockKeyframeAnimations(element);\n          //once the reflow is complete then we point cancel to\n          //the new cancellation function which will remove all of the\n          //animation properties from the active animation\n          cancel = animateAfter(animationEvent, element, className, animationComplete);\n        });\n\n        return function(cancelled) {\n          (cancel || noop)(cancelled);\n        };\n      }\n\n      function animateClose(element, className) {\n        element.removeClass(className);\n        var data = element.data(NG_ANIMATE_CSS_DATA_KEY);\n        if(data) {\n          if(data.running) {\n            data.running--;\n          }\n          if(!data.running || data.running === 0) {\n            element.removeData(NG_ANIMATE_CSS_DATA_KEY);\n          }\n        }\n      }\n\n      return {\n        enter : function(element, animationCompleted) {\n          return animate('enter', element, 'ng-enter', animationCompleted);\n        },\n\n        leave : function(element, animationCompleted) {\n          return animate('leave', element, 'ng-leave', animationCompleted);\n        },\n\n        move : function(element, animationCompleted) {\n          return animate('move', element, 'ng-move', animationCompleted);\n        },\n\n        beforeSetClass : function(element, add, remove, animationCompleted) {\n          var className = suffixClasses(remove, '-remove') + ' ' +\n                          suffixClasses(add, '-add');\n          var cancellationMethod = animateBefore('setClass', element, className, function(fn) {\n            /* when classes are removed from an element then the transition style\n             * that is applied is the transition defined on the element without the\n             * CSS class being there. This is how CSS3 functions outside of ngAnimate.\n             * http://plnkr.co/edit/j8OzgTNxHTb4n3zLyjGW?p=preview */\n            var klass = element.attr('class');\n            element.removeClass(remove);\n            element.addClass(add);\n            var timings = fn();\n            element.attr('class', klass);\n            return timings;\n          });\n\n          if(cancellationMethod) {\n            afterReflow(element, function() {\n              unblockTransitions(element, className);\n              unblockKeyframeAnimations(element);\n              animationCompleted();\n            });\n            return cancellationMethod;\n          }\n          clearCacheAfterReflow();\n          animationCompleted();\n        },\n\n        beforeAddClass : function(element, className, animationCompleted) {\n          var cancellationMethod = animateBefore('addClass', element, suffixClasses(className, '-add'), function(fn) {\n\n            /* when a CSS class is added to an element then the transition style that\n             * is applied is the transition defined on the element when the CSS class\n             * is added at the time of the animation. This is how CSS3 functions\n             * outside of ngAnimate. */\n            element.addClass(className);\n            var timings = fn();\n            element.removeClass(className);\n            return timings;\n          });\n\n          if(cancellationMethod) {\n            afterReflow(element, function() {\n              unblockTransitions(element, className);\n              unblockKeyframeAnimations(element);\n              animationCompleted();\n            });\n            return cancellationMethod;\n          }\n          clearCacheAfterReflow();\n          animationCompleted();\n        },\n\n        setClass : function(element, add, remove, animationCompleted) {\n          remove = suffixClasses(remove, '-remove');\n          add = suffixClasses(add, '-add');\n          var className = remove + ' ' + add;\n          return animateAfter('setClass', element, className, animationCompleted);\n        },\n\n        addClass : function(element, className, animationCompleted) {\n          return animateAfter('addClass', element, suffixClasses(className, '-add'), animationCompleted);\n        },\n\n        beforeRemoveClass : function(element, className, animationCompleted) {\n          var cancellationMethod = animateBefore('removeClass', element, suffixClasses(className, '-remove'), function(fn) {\n            /* when classes are removed from an element then the transition style\n             * that is applied is the transition defined on the element without the\n             * CSS class being there. This is how CSS3 functions outside of ngAnimate.\n             * http://plnkr.co/edit/j8OzgTNxHTb4n3zLyjGW?p=preview */\n            var klass = element.attr('class');\n            element.removeClass(className);\n            var timings = fn();\n            element.attr('class', klass);\n            return timings;\n          });\n\n          if(cancellationMethod) {\n            afterReflow(element, function() {\n              unblockTransitions(element, className);\n              unblockKeyframeAnimations(element);\n              animationCompleted();\n            });\n            return cancellationMethod;\n          }\n          animationCompleted();\n        },\n\n        removeClass : function(element, className, animationCompleted) {\n          return animateAfter('removeClass', element, suffixClasses(className, '-remove'), animationCompleted);\n        }\n      };\n\n      function suffixClasses(classes, suffix) {\n        var className = '';\n        classes = angular.isArray(classes) ? classes : classes.split(/\\s+/);\n        forEach(classes, function(klass, i) {\n          if(klass && klass.length > 0) {\n            className += (i > 0 ? ' ' : '') + klass + suffix;\n          }\n        });\n        return className;\n      }\n    }]);\n  }]);\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.2/angular-mocks.js",
    "content": "/**\n * @license AngularJS v1.2.32\n * (c) 2010-2014 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular, undefined) {\n\n'use strict';\n\n/**\n * @ngdoc object\n * @name angular.mock\n * @description\n *\n * Namespace from 'angular-mocks.js' which contains testing related code.\n */\nangular.mock = {};\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n *\n * @description\n * This service is a mock implementation of {@link ng.$browser}. It provides fake\n * implementation for commonly used browser apis that are hard to test, e.g. setTimeout, xhr,\n * cookies, etc...\n *\n * The api of this service is the same as that of the real {@link ng.$browser $browser}, except\n * that there are several helper methods available which can be used in tests.\n */\nangular.mock.$BrowserProvider = function() {\n  this.$get = function() {\n    return new angular.mock.$Browser();\n  };\n};\n\nangular.mock.$Browser = function() {\n  var self = this;\n\n  this.isMock = true;\n  self.$$url = \"http://server/\";\n  self.$$lastUrl = self.$$url; // used by url polling fn\n  self.pollFns = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = angular.noop;\n  self.$$incOutstandingRequestCount = angular.noop;\n\n\n  // register url polling fn\n\n  self.onUrlChange = function(listener) {\n    self.pollFns.push(\n      function() {\n        if (self.$$lastUrl != self.$$url) {\n          self.$$lastUrl = self.$$url;\n          listener(self.$$url);\n        }\n      }\n    );\n\n    return listener;\n  };\n\n  self.$$checkUrlChange = angular.noop;\n\n  self.cookieHash = {};\n  self.lastCookieHash = {};\n  self.deferredFns = [];\n  self.deferredNextId = 0;\n\n  self.defer = function(fn, delay) {\n    delay = delay || 0;\n    self.deferredFns.push({time:(self.defer.now + delay), fn:fn, id: self.deferredNextId});\n    self.deferredFns.sort(function(a,b){ return a.time - b.time;});\n    return self.deferredNextId++;\n  };\n\n\n  /**\n   * @name $browser#defer.now\n   *\n   * @description\n   * Current milliseconds mock time.\n   */\n  self.defer.now = 0;\n\n\n  self.defer.cancel = function(deferId) {\n    var fnIndex;\n\n    angular.forEach(self.deferredFns, function(fn, index) {\n      if (fn.id === deferId) fnIndex = index;\n    });\n\n    if (fnIndex !== undefined) {\n      self.deferredFns.splice(fnIndex, 1);\n      return true;\n    }\n\n    return false;\n  };\n\n\n  /**\n   * @name $browser#defer.flush\n   *\n   * @description\n   * Flushes all pending requests and executes the defer callbacks.\n   *\n   * @param {number=} number of milliseconds to flush. See {@link #defer.now}\n   */\n  self.defer.flush = function(delay) {\n    if (angular.isDefined(delay)) {\n      self.defer.now += delay;\n    } else {\n      if (self.deferredFns.length) {\n        self.defer.now = self.deferredFns[self.deferredFns.length-1].time;\n      } else {\n        throw new Error('No deferred tasks to be flushed');\n      }\n    }\n\n    while (self.deferredFns.length && self.deferredFns[0].time <= self.defer.now) {\n      self.deferredFns.shift().fn();\n    }\n  };\n\n  self.$$baseHref = '';\n  self.baseHref = function() {\n    return this.$$baseHref;\n  };\n};\nangular.mock.$Browser.prototype = {\n\n/**\n  * @name $browser#poll\n  *\n  * @description\n  * run all fns in pollFns\n  */\n  poll: function poll() {\n    angular.forEach(this.pollFns, function(pollFn){\n      pollFn();\n    });\n  },\n\n  addPollFn: function(pollFn) {\n    this.pollFns.push(pollFn);\n    return pollFn;\n  },\n\n  url: function(url, replace) {\n    if (url) {\n      this.$$url = url;\n      return this;\n    }\n\n    return this.$$url;\n  },\n\n  cookies:  function(name, value) {\n    if (name) {\n      if (angular.isUndefined(value)) {\n        delete this.cookieHash[name];\n      } else {\n        if (angular.isString(value) &&       //strings only\n            value.length <= 4096) {          //strict cookie storage limits\n          this.cookieHash[name] = value;\n        }\n      }\n    } else {\n      if (!angular.equals(this.cookieHash, this.lastCookieHash)) {\n        this.lastCookieHash = angular.copy(this.cookieHash);\n        this.cookieHash = angular.copy(this.cookieHash);\n      }\n      return this.cookieHash;\n    }\n  },\n\n  notifyWhenNoOutstandingRequests: function(fn) {\n    fn();\n  }\n};\n\n\n/**\n * @ngdoc provider\n * @name $exceptionHandlerProvider\n *\n * @description\n * Configures the mock implementation of {@link ng.$exceptionHandler} to rethrow or to log errors\n * passed into the `$exceptionHandler`.\n */\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n *\n * @description\n * Mock implementation of {@link ng.$exceptionHandler} that rethrows or logs errors passed\n * into it. See {@link ngMock.$exceptionHandlerProvider $exceptionHandlerProvider} for configuration\n * information.\n *\n *\n * ```js\n *   describe('$exceptionHandlerProvider', function() {\n *\n *     it('should capture log messages and exceptions', function() {\n *\n *       module(function($exceptionHandlerProvider) {\n *         $exceptionHandlerProvider.mode('log');\n *       });\n *\n *       inject(function($log, $exceptionHandler, $timeout) {\n *         $timeout(function() { $log.log(1); });\n *         $timeout(function() { $log.log(2); throw 'banana peel'; });\n *         $timeout(function() { $log.log(3); });\n *         expect($exceptionHandler.errors).toEqual([]);\n *         expect($log.assertEmpty());\n *         $timeout.flush();\n *         expect($exceptionHandler.errors).toEqual(['banana peel']);\n *         expect($log.log.logs).toEqual([[1], [2], [3]]);\n *       });\n *     });\n *   });\n * ```\n */\n\nangular.mock.$ExceptionHandlerProvider = function() {\n  var handler;\n\n  /**\n   * @ngdoc method\n   * @name $exceptionHandlerProvider#mode\n   *\n   * @description\n   * Sets the logging mode.\n   *\n   * @param {string} mode Mode of operation, defaults to `rethrow`.\n   *\n   *   - `rethrow`: If any errors are passed into the handler in tests, it typically\n   *                means that there is a bug in the application or test, so this mock will\n   *                make these tests fail.\n   *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log`\n   *            mode stores an array of errors in `$exceptionHandler.errors`, to allow later\n   *            assertion of them. See {@link ngMock.$log#assertEmpty assertEmpty()} and\n   *            {@link ngMock.$log#reset reset()}\n   */\n  this.mode = function(mode) {\n    switch(mode) {\n      case 'rethrow':\n        handler = function(e) {\n          throw e;\n        };\n        break;\n      case 'log':\n        var errors = [];\n\n        handler = function(e) {\n          if (arguments.length == 1) {\n            errors.push(e);\n          } else {\n            errors.push([].slice.call(arguments, 0));\n          }\n        };\n\n        handler.errors = errors;\n        break;\n      default:\n        throw new Error(\"Unknown mode '\" + mode + \"', only 'log'/'rethrow' modes are allowed!\");\n    }\n  };\n\n  this.$get = function() {\n    return handler;\n  };\n\n  this.mode('rethrow');\n};\n\n\n/**\n * @ngdoc service\n * @name $log\n *\n * @description\n * Mock implementation of {@link ng.$log} that gathers all logged messages in arrays\n * (one array per logging level). These arrays are exposed as `logs` property of each of the\n * level-specific log function, e.g. for level `error` the array is exposed as `$log.error.logs`.\n *\n */\nangular.mock.$LogProvider = function() {\n  var debug = true;\n\n  function concat(array1, array2, index) {\n    return array1.concat(Array.prototype.slice.call(array2, index));\n  }\n\n  this.debugEnabled = function(flag) {\n    if (angular.isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = function () {\n    var $log = {\n      log: function() { $log.log.logs.push(concat([], arguments, 0)); },\n      warn: function() { $log.warn.logs.push(concat([], arguments, 0)); },\n      info: function() { $log.info.logs.push(concat([], arguments, 0)); },\n      error: function() { $log.error.logs.push(concat([], arguments, 0)); },\n      debug: function() {\n        if (debug) {\n          $log.debug.logs.push(concat([], arguments, 0));\n        }\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#reset\n     *\n     * @description\n     * Reset all of the logging arrays to empty.\n     */\n    $log.reset = function () {\n      /**\n       * @ngdoc property\n       * @name $log#log.logs\n       *\n       * @description\n       * Array of messages logged using {@link ngMock.$log#log}.\n       *\n       * @example\n       * ```js\n       * $log.log('Some Log');\n       * var first = $log.log.logs.unshift();\n       * ```\n       */\n      $log.log.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#info.logs\n       *\n       * @description\n       * Array of messages logged using {@link ngMock.$log#info}.\n       *\n       * @example\n       * ```js\n       * $log.info('Some Info');\n       * var first = $log.info.logs.unshift();\n       * ```\n       */\n      $log.info.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#warn.logs\n       *\n       * @description\n       * Array of messages logged using {@link ngMock.$log#warn}.\n       *\n       * @example\n       * ```js\n       * $log.warn('Some Warning');\n       * var first = $log.warn.logs.unshift();\n       * ```\n       */\n      $log.warn.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#error.logs\n       *\n       * @description\n       * Array of messages logged using {@link ngMock.$log#error}.\n       *\n       * @example\n       * ```js\n       * $log.error('Some Error');\n       * var first = $log.error.logs.unshift();\n       * ```\n       */\n      $log.error.logs = [];\n        /**\n       * @ngdoc property\n       * @name $log#debug.logs\n       *\n       * @description\n       * Array of messages logged using {@link ngMock.$log#debug}.\n       *\n       * @example\n       * ```js\n       * $log.debug('Some Error');\n       * var first = $log.debug.logs.unshift();\n       * ```\n       */\n      $log.debug.logs = [];\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#assertEmpty\n     *\n     * @description\n     * Assert that the all of the logging methods have no logged messages. If messages present, an\n     * exception is thrown.\n     */\n    $log.assertEmpty = function() {\n      var errors = [];\n      angular.forEach(['error', 'warn', 'info', 'log', 'debug'], function(logLevel) {\n        angular.forEach($log[logLevel].logs, function(log) {\n          angular.forEach(log, function (logItem) {\n            errors.push('MOCK $log (' + logLevel + '): ' + String(logItem) + '\\n' +\n                        (logItem.stack || ''));\n          });\n        });\n      });\n      if (errors.length) {\n        errors.unshift(\"Expected $log to be empty! Either a message was logged unexpectedly, or \"+\n          \"an expected log message was not checked and removed:\");\n        errors.push('');\n        throw new Error(errors.join('\\n---------\\n'));\n      }\n    };\n\n    $log.reset();\n    return $log;\n  };\n};\n\n\n/**\n * @ngdoc service\n * @name $interval\n *\n * @description\n * Mock implementation of the $interval service.\n *\n * Use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n * time.\n *\n * @param {function()} fn A function that should be called repeatedly.\n * @param {number} delay Number of milliseconds between each function call.\n * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n *   indefinitely.\n * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n * @returns {promise} A promise which will be notified on each iteration.\n */\nangular.mock.$IntervalProvider = function() {\n  this.$get = ['$rootScope', '$q',\n       function($rootScope,   $q) {\n    var repeatFns = [],\n        nextRepeatId = 0,\n        now = 0;\n\n    var $interval = function(fn, delay, count, invokeApply) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          iteration = 0,\n          skipApply = (angular.isDefined(invokeApply) && !invokeApply);\n\n      count = (angular.isDefined(count)) ? count : 0;\n      promise.then(null, null, fn);\n\n      promise.$$intervalId = nextRepeatId;\n\n      function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          var fnIndex;\n          deferred.resolve(iteration);\n\n          angular.forEach(repeatFns, function(fn, index) {\n            if (fn.id === promise.$$intervalId) fnIndex = index;\n          });\n\n          if (fnIndex !== undefined) {\n            repeatFns.splice(fnIndex, 1);\n          }\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }\n\n      repeatFns.push({\n        nextTime:(now + delay),\n        delay: delay,\n        fn: tick,\n        id: nextRepeatId,\n        deferred: deferred\n      });\n      repeatFns.sort(function(a,b){ return a.nextTime - b.nextTime;});\n\n      nextRepeatId++;\n      return promise;\n    };\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {promise} promise A promise from calling the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully cancelled.\n     */\n    $interval.cancel = function(promise) {\n      if(!promise) return false;\n      var fnIndex;\n\n      angular.forEach(repeatFns, function(fn, index) {\n        if (fn.id === promise.$$intervalId) fnIndex = index;\n      });\n\n      if (fnIndex !== undefined) {\n        repeatFns[fnIndex].deferred.reject('canceled');\n        repeatFns.splice(fnIndex, 1);\n        return true;\n      }\n\n      return false;\n    };\n\n    /**\n     * @ngdoc method\n     * @name $interval#flush\n     * @description\n     *\n     * Runs interval tasks scheduled to be run in the next `millis` milliseconds.\n     *\n     * @param {number=} millis maximum timeout amount to flush up until.\n     *\n     * @return {number} The amount of time moved forward.\n     */\n    $interval.flush = function(millis) {\n      now += millis;\n      while (repeatFns.length && repeatFns[0].nextTime <= now) {\n        var task = repeatFns[0];\n        task.fn();\n        task.nextTime += task.delay;\n        repeatFns.sort(function(a,b){ return a.nextTime - b.nextTime;});\n      }\n      return millis;\n    };\n\n    return $interval;\n  }];\n};\n\n\n/* jshint -W101 */\n/* The R_ISO8061_STR regex is never going to fit into the 100 char limit!\n * This directive should go inside the anonymous function but a bug in JSHint means that it would\n * not be enacted early enough to prevent the warning.\n */\nvar R_ISO8061_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?:\\:?(\\d\\d)(?:\\:?(\\d\\d)(?:\\.(\\d{3}))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d)))?$/;\n\nfunction jsonStringToDate(string) {\n  var match;\n  if (match = string.match(R_ISO8061_STR)) {\n    var date = new Date(0),\n        tzHour = 0,\n        tzMin  = 0;\n    if (match[9]) {\n      tzHour = int(match[9] + match[10]);\n      tzMin = int(match[9] + match[11]);\n    }\n    date.setUTCFullYear(int(match[1]), int(match[2]) - 1, int(match[3]));\n    date.setUTCHours(int(match[4]||0) - tzHour,\n                     int(match[5]||0) - tzMin,\n                     int(match[6]||0),\n                     int(match[7]||0));\n    return date;\n  }\n  return string;\n}\n\nfunction int(str) {\n  return parseInt(str, 10);\n}\n\nfunction padNumber(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while(num.length < digits) num = '0' + num;\n  if (trim)\n    num = num.substr(num.length - digits);\n  return neg + num;\n}\n\n\n/**\n * @ngdoc type\n * @name angular.mock.TzDate\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.\n *\n * Mock of the Date type which has its timezone specified via constructor arg.\n *\n * The main purpose is to create Date-like instances with timezone fixed to the specified timezone\n * offset, so that we can test code that depends on local timezone settings without dependency on\n * the time zone settings of the machine where the code is running.\n *\n * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)\n * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*\n *\n * @example\n * !!!! WARNING !!!!!\n * This is not a complete Date object so only methods that were implemented can be called safely.\n * To make matters worse, TzDate instances inherit stuff from Date via a prototype.\n *\n * We do our best to intercept calls to \"unimplemented\" methods, but since the list of methods is\n * incomplete we might be missing some non-standard methods. This can result in errors like:\n * \"Date.prototype.foo called on incompatible Object\".\n *\n * ```js\n * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');\n * newYearInBratislava.getTimezoneOffset() => -60;\n * newYearInBratislava.getFullYear() => 2010;\n * newYearInBratislava.getMonth() => 0;\n * newYearInBratislava.getDate() => 1;\n * newYearInBratislava.getHours() => 0;\n * newYearInBratislava.getMinutes() => 0;\n * newYearInBratislava.getSeconds() => 0;\n * ```\n *\n */\nangular.mock.TzDate = function (offset, timestamp) {\n  var self = new Date(0);\n  if (angular.isString(timestamp)) {\n    var tsStr = timestamp;\n\n    self.origDate = jsonStringToDate(timestamp);\n\n    timestamp = self.origDate.getTime();\n    if (isNaN(timestamp))\n      throw {\n        name: \"Illegal Argument\",\n        message: \"Arg '\" + tsStr + \"' passed into TzDate constructor is not a valid date string\"\n      };\n  } else {\n    self.origDate = new Date(timestamp);\n  }\n\n  var localOffset = new Date(timestamp).getTimezoneOffset();\n  self.offsetDiff = localOffset*60*1000 - offset*1000*60*60;\n  self.date = new Date(timestamp + self.offsetDiff);\n\n  self.getTime = function() {\n    return self.date.getTime() - self.offsetDiff;\n  };\n\n  self.toLocaleDateString = function() {\n    return self.date.toLocaleDateString();\n  };\n\n  self.getFullYear = function() {\n    return self.date.getFullYear();\n  };\n\n  self.getMonth = function() {\n    return self.date.getMonth();\n  };\n\n  self.getDate = function() {\n    return self.date.getDate();\n  };\n\n  self.getHours = function() {\n    return self.date.getHours();\n  };\n\n  self.getMinutes = function() {\n    return self.date.getMinutes();\n  };\n\n  self.getSeconds = function() {\n    return self.date.getSeconds();\n  };\n\n  self.getMilliseconds = function() {\n    return self.date.getMilliseconds();\n  };\n\n  self.getTimezoneOffset = function() {\n    return offset * 60;\n  };\n\n  self.getUTCFullYear = function() {\n    return self.origDate.getUTCFullYear();\n  };\n\n  self.getUTCMonth = function() {\n    return self.origDate.getUTCMonth();\n  };\n\n  self.getUTCDate = function() {\n    return self.origDate.getUTCDate();\n  };\n\n  self.getUTCHours = function() {\n    return self.origDate.getUTCHours();\n  };\n\n  self.getUTCMinutes = function() {\n    return self.origDate.getUTCMinutes();\n  };\n\n  self.getUTCSeconds = function() {\n    return self.origDate.getUTCSeconds();\n  };\n\n  self.getUTCMilliseconds = function() {\n    return self.origDate.getUTCMilliseconds();\n  };\n\n  self.getDay = function() {\n    return self.date.getDay();\n  };\n\n  // provide this method only on browsers that already have it\n  if (self.toISOString) {\n    self.toISOString = function() {\n      return padNumber(self.origDate.getUTCFullYear(), 4) + '-' +\n            padNumber(self.origDate.getUTCMonth() + 1, 2) + '-' +\n            padNumber(self.origDate.getUTCDate(), 2) + 'T' +\n            padNumber(self.origDate.getUTCHours(), 2) + ':' +\n            padNumber(self.origDate.getUTCMinutes(), 2) + ':' +\n            padNumber(self.origDate.getUTCSeconds(), 2) + '.' +\n            padNumber(self.origDate.getUTCMilliseconds(), 3) + 'Z';\n    };\n  }\n\n  //hide all methods not implemented in this mock that the Date prototype exposes\n  var unimplementedMethods = ['getUTCDay',\n      'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',\n      'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',\n      'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',\n      'setYear', 'toDateString', 'toGMTString', 'toJSON', 'toLocaleFormat', 'toLocaleString',\n      'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];\n\n  angular.forEach(unimplementedMethods, function(methodName) {\n    self[methodName] = function() {\n      throw new Error(\"Method '\" + methodName + \"' is not implemented in the TzDate mock\");\n    };\n  });\n\n  return self;\n};\n\n//make \"tzDateInstance instanceof Date\" return true\nangular.mock.TzDate.prototype = Date.prototype;\n/* jshint +W101 */\n\nangular.mock.animate = angular.module('ngAnimateMock', ['ng'])\n\n  .config(['$provide', function($provide) {\n\n    var reflowQueue = [];\n    $provide.value('$$animateReflow', function(fn) {\n      var index = reflowQueue.length;\n      reflowQueue.push(fn);\n      return function cancel() {\n        reflowQueue.splice(index, 1);\n      };\n    });\n\n    $provide.decorator('$animate', function($delegate, $$asyncCallback) {\n      var animate = {\n        queue : [],\n        enabled : $delegate.enabled,\n        triggerCallbacks : function() {\n          $$asyncCallback.flush();\n        },\n        triggerReflow : function() {\n          angular.forEach(reflowQueue, function(fn) {\n            fn();\n          });\n          reflowQueue = [];\n        }\n      };\n\n      angular.forEach(\n        ['enter','leave','move','addClass','removeClass','setClass'], function(method) {\n        animate[method] = function() {\n          animate.queue.push({\n            event : method,\n            element : arguments[0],\n            args : arguments\n          });\n          $delegate[method].apply($delegate, arguments);\n        };\n      });\n\n      return animate;\n    });\n\n  }]);\n\n\n/**\n * @ngdoc function\n * @name angular.mock.dump\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available function.\n *\n * Method for serializing common angular objects (scope, elements, etc..) into strings, useful for\n * debugging.\n *\n * This method is also available on window, where it can be used to display objects on debug\n * console.\n *\n * @param {*} object - any object to turn into string.\n * @return {string} a serialized string of the argument\n */\nangular.mock.dump = function(object) {\n  return serialize(object);\n\n  function serialize(object) {\n    var out;\n\n    if (angular.isElement(object)) {\n      object = angular.element(object);\n      out = angular.element('<div></div>');\n      angular.forEach(object, function(element) {\n        out.append(angular.element(element).clone());\n      });\n      out = out.html();\n    } else if (angular.isArray(object)) {\n      out = [];\n      angular.forEach(object, function(o) {\n        out.push(serialize(o));\n      });\n      out = '[ ' + out.join(', ') + ' ]';\n    } else if (angular.isObject(object)) {\n      if (angular.isFunction(object.$eval) && angular.isFunction(object.$apply)) {\n        out = serializeScope(object);\n      } else if (object instanceof Error) {\n        out = object.stack || ('' + object.name + ': ' + object.message);\n      } else {\n        // TODO(i): this prevents methods being logged,\n        // we should have a better way to serialize objects\n        out = angular.toJson(object, true);\n      }\n    } else {\n      out = String(object);\n    }\n\n    return out;\n  }\n\n  function serializeScope(scope, offset) {\n    offset = offset ||  '  ';\n    var log = [offset + 'Scope(' + scope.$id + '): {'];\n    for ( var key in scope ) {\n      if (Object.prototype.hasOwnProperty.call(scope, key) && !key.match(/^(\\$|this)/)) {\n        log.push('  ' + key + ': ' + angular.toJson(scope[key]));\n      }\n    }\n    var child = scope.$$childHead;\n    while(child) {\n      log.push(serializeScope(child, offset + '  '));\n      child = child.$$nextSibling;\n    }\n    log.push('}');\n    return log.join('\\n' + offset);\n  }\n};\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @description\n * Fake HTTP backend implementation suitable for unit testing applications that use the\n * {@link ng.$http $http service}.\n *\n * *Note*: For fake HTTP backend implementation suitable for end-to-end testing or backend-less\n * development please see {@link ngMockE2E.$httpBackend e2e $httpBackend mock}.\n *\n * During unit testing, we want our unit tests to run quickly and have no external dependencies so\n * we don’t want to send [XHR](https://developer.mozilla.org/en/xmlhttprequest) or\n * [JSONP](http://en.wikipedia.org/wiki/JSONP) requests to a real server. All we really need is\n * to verify whether a certain request has been sent or not, or alternatively just let the\n * application make requests, respond with pre-trained responses and assert that the end result is\n * what we expect it to be.\n *\n * This mock implementation can be used to respond with static or dynamic responses via the\n * `expect` and `when` apis and their shortcuts (`expectGET`, `whenPOST`, etc).\n *\n * When an Angular application needs some data from a server, it calls the $http service, which\n * sends the request to a real server using $httpBackend service. With dependency injection, it is\n * easy to inject $httpBackend mock (which has the same API as $httpBackend) and use it to verify\n * the requests and respond with some testing data without sending a request to a real server.\n *\n * There are two ways to specify what test data should be returned as http responses by the mock\n * backend when the code under test makes http requests:\n *\n * - `$httpBackend.expect` - specifies a request expectation\n * - `$httpBackend.when` - specifies a backend definition\n *\n *\n * # Request Expectations vs Backend Definitions\n *\n * Request expectations provide a way to make assertions about requests made by the application and\n * to define responses for those requests. The test will fail if the expected requests are not made\n * or they are made in the wrong order.\n *\n * Backend definitions allow you to define a fake backend for your application which doesn't assert\n * if a particular request was made or not, it just returns a trained response if a request is made.\n * The test will pass whether or not the request gets made during testing.\n *\n *\n * <table class=\"table\">\n *   <tr><th width=\"220px\"></th><th>Request expectations</th><th>Backend definitions</th></tr>\n *   <tr>\n *     <th>Syntax</th>\n *     <td>.expect(...).respond(...)</td>\n *     <td>.when(...).respond(...)</td>\n *   </tr>\n *   <tr>\n *     <th>Typical usage</th>\n *     <td>strict unit tests</td>\n *     <td>loose (black-box) unit testing</td>\n *   </tr>\n *   <tr>\n *     <th>Fulfills multiple requests</th>\n *     <td>NO</td>\n *     <td>YES</td>\n *   </tr>\n *   <tr>\n *     <th>Order of requests matters</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Request required</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Response required</th>\n *     <td>optional (see below)</td>\n *     <td>YES</td>\n *   </tr>\n * </table>\n *\n * In cases where both backend definitions and request expectations are specified during unit\n * testing, the request expectations are evaluated first.\n *\n * If a request expectation has no response specified, the algorithm will search your backend\n * definitions for an appropriate response.\n *\n * If a request didn't match any expectation or if the expectation doesn't have the response\n * defined, the backend definitions are evaluated in sequential order to see if any of them match\n * the request. The response from the first matched definition is returned.\n *\n *\n * # Flushing HTTP requests\n *\n * The $httpBackend used in production always responds to requests asynchronously. If we preserved\n * this behavior in unit testing, we'd have to create async unit tests, which are hard to write,\n * to follow and to maintain. But neither can the testing mock respond synchronously; that would\n * change the execution of the code under test. For this reason, the mock $httpBackend has a\n * `flush()` method, which allows the test to explicitly flush pending requests. This preserves\n * the async api of the backend, while allowing the test to execute synchronously.\n *\n *\n * # Unit testing with mock $httpBackend\n * The following code shows how to setup and use the mock backend when unit testing a controller.\n * First we create the controller under test:\n *\n  ```js\n  // The controller code\n  function MyController($scope, $http) {\n    var authToken;\n\n    $http.get('/auth.py').success(function(data, status, headers) {\n      authToken = headers('A-Token');\n      $scope.user = data;\n    });\n\n    $scope.saveMessage = function(message) {\n      var headers = { 'Authorization': authToken };\n      $scope.status = 'Saving...';\n\n      $http.post('/add-msg.py', message, { headers: headers } ).success(function(response) {\n        $scope.status = '';\n      }).error(function() {\n        $scope.status = 'ERROR!';\n      });\n    };\n  }\n  ```\n *\n * Now we setup the mock backend and create the test specs:\n *\n  ```js\n    // testing controller\n    describe('MyController', function() {\n       var $httpBackend, $rootScope, createController;\n\n       beforeEach(inject(function($injector) {\n         // Set up the mock http service responses\n         $httpBackend = $injector.get('$httpBackend');\n         // backend definition common for all tests\n         $httpBackend.when('GET', '/auth.py').respond({userId: 'userX'}, {'A-Token': 'xxx'});\n\n         // Get hold of a scope (i.e. the root scope)\n         $rootScope = $injector.get('$rootScope');\n         // The $controller service is used to create instances of controllers\n         var $controller = $injector.get('$controller');\n\n         createController = function() {\n           return $controller('MyController', {'$scope' : $rootScope });\n         };\n       }));\n\n\n       afterEach(function() {\n         $httpBackend.verifyNoOutstandingExpectation();\n         $httpBackend.verifyNoOutstandingRequest();\n       });\n\n\n       it('should fetch authentication token', function() {\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n       });\n\n\n       it('should send msg to server', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         // now you don’t care about the authentication, but\n         // the controller will still send the request and\n         // $httpBackend will respond without you having to\n         // specify the expectation and response for this request\n\n         $httpBackend.expectPOST('/add-msg.py', 'message content').respond(201, '');\n         $rootScope.saveMessage('message content');\n         expect($rootScope.status).toBe('Saving...');\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('');\n       });\n\n\n       it('should send auth header', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         $httpBackend.expectPOST('/add-msg.py', undefined, function(headers) {\n           // check if the header was send, if it wasn't the expectation won't\n           // match the request and the test will fail\n           return headers['Authorization'] == 'xxx';\n         }).respond(201, '');\n\n         $rootScope.saveMessage('whatever');\n         $httpBackend.flush();\n       });\n    });\n   ```\n */\nangular.mock.$HttpBackendProvider = function() {\n  this.$get = ['$rootScope', createHttpBackendMock];\n};\n\n/**\n * General factory function for $httpBackend mock.\n * Returns instance for unit testing (when no arguments specified):\n *   - passing through is disabled\n *   - auto flushing is disabled\n *\n * Returns instance for e2e testing (when `$delegate` and `$browser` specified):\n *   - passing through (delegating request to real backend) is enabled\n *   - auto flushing is enabled\n *\n * @param {Object=} $delegate Real $httpBackend instance (allow passing through if specified)\n * @param {Object=} $browser Auto-flushing enabled if specified\n * @return {Object} Instance of $httpBackend mock\n */\nfunction createHttpBackendMock($rootScope, $delegate, $browser) {\n  var definitions = [],\n      expectations = [],\n      responses = [],\n      responsesPush = angular.bind(responses, responses.push),\n      copy = angular.copy;\n\n  function createResponse(status, data, headers, statusText) {\n    if (angular.isFunction(status)) return status;\n\n    return function() {\n      return angular.isNumber(status)\n          ? [status, data, headers, statusText]\n          : [200, status, data];\n    };\n  }\n\n  // TODO(vojta): change params to: method, url, data, headers, callback\n  function $httpBackend(method, url, data, callback, headers, timeout, withCredentials) {\n    var xhr = new MockXhr(),\n        expectation = expectations[0],\n        wasExpected = false;\n\n    function prettyPrint(data) {\n      return (angular.isString(data) || angular.isFunction(data) || data instanceof RegExp)\n          ? data\n          : angular.toJson(data);\n    }\n\n    function wrapResponse(wrapped) {\n      if (!$browser && timeout && timeout.then) timeout.then(handleTimeout);\n\n      return handleResponse;\n\n      function handleResponse() {\n        var response = wrapped.response(method, url, data, headers);\n        xhr.$$respHeaders = response[2];\n        callback(copy(response[0]), copy(response[1]), xhr.getAllResponseHeaders(),\n                 copy(response[3] || ''));\n      }\n\n      function handleTimeout() {\n        for (var i = 0, ii = responses.length; i < ii; i++) {\n          if (responses[i] === handleResponse) {\n            responses.splice(i, 1);\n            callback(-1, undefined, '');\n            break;\n          }\n        }\n      }\n    }\n\n    if (expectation && expectation.match(method, url)) {\n      if (!expectation.matchData(data))\n        throw new Error('Expected ' + expectation + ' with different data\\n' +\n            'EXPECTED: ' + prettyPrint(expectation.data) + '\\nGOT:      ' + data);\n\n      if (!expectation.matchHeaders(headers))\n        throw new Error('Expected ' + expectation + ' with different headers\\n' +\n                        'EXPECTED: ' + prettyPrint(expectation.headers) + '\\nGOT:      ' +\n                        prettyPrint(headers));\n\n      expectations.shift();\n\n      if (expectation.response) {\n        responses.push(wrapResponse(expectation));\n        return;\n      }\n      wasExpected = true;\n    }\n\n    var i = -1, definition;\n    while ((definition = definitions[++i])) {\n      if (definition.match(method, url, data, headers || {})) {\n        if (definition.response) {\n          // if $browser specified, we do auto flush all requests\n          ($browser ? $browser.defer : responsesPush)(wrapResponse(definition));\n        } else if (definition.passThrough) {\n          $delegate(method, url, data, callback, headers, timeout, withCredentials);\n        } else throw new Error('No response defined !');\n        return;\n      }\n    }\n    throw wasExpected ?\n        new Error('No response defined !') :\n        new Error('Unexpected request: ' + method + ' ' + url + '\\n' +\n                  (expectation ? 'Expected ' + expectation : 'No more request expected'));\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#when\n   * @description\n   * Creates a new backend definition.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *   request is handled.\n   *\n   *  - respond –\n   *      `{function([status,] data[, headers, statusText])\n   *      | function(function(method, url, data, headers)}`\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (string), response\n   *    headers (Object), and the text for the status (string).\n   */\n  $httpBackend.when = function(method, url, data, headers) {\n    var definition = new MockHttpExpectation(method, url, data, headers),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            definition.response = createResponse(status, data, headers, statusText);\n          }\n        };\n\n    if ($browser) {\n      chain.passThrough = function() {\n        definition.passThrough = true;\n      };\n    }\n\n    definitions.push(definition);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenGET\n   * @description\n   * Creates a new backend definition for GET requests. For more info see `when()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenHEAD\n   * @description\n   * Creates a new backend definition for HEAD requests. For more info see `when()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenDELETE\n   * @description\n   * Creates a new backend definition for DELETE requests. For more info see `when()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPOST\n   * @description\n   * Creates a new backend definition for POST requests. For more info see `when()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPUT\n   * @description\n   * Creates a new backend definition for PUT requests.  For more info see `when()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPATCH\n   * @description\n   * Creates a new backend definition for PATCH requests.  For more info see `when()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenJSONP\n   * @description\n   * Creates a new backend definition for JSONP requests. For more info see `when()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled.\n   */\n  createShortMethods('when');\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expect\n   * @description\n   * Creates a new request expectation.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *  request is handled.\n   *\n   *  - respond –\n   *    `{function([status,] data[, headers, statusText])\n   *    | function(function(method, url, data, headers)}`\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (string), response\n   *    headers (Object), and the text for the status (string).\n   */\n  $httpBackend.expect = function(method, url, data, headers) {\n    var expectation = new MockHttpExpectation(method, url, data, headers);\n    expectations.push(expectation);\n    return {\n      respond: function (status, data, headers, statusText) {\n        expectation.response = createResponse(status, data, headers, statusText);\n      }\n    };\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectGET\n   * @description\n   * Creates a new request expectation for GET requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   * request is handled. See #expect for more info.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectHEAD\n   * @description\n   * Creates a new request expectation for HEAD requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *   request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectDELETE\n   * @description\n   * Creates a new request expectation for DELETE requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *   request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPOST\n   * @description\n   * Creates a new request expectation for POST requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *   request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPUT\n   * @description\n   * Creates a new request expectation for PUT requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *   request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPATCH\n   * @description\n   * Creates a new request expectation for PATCH requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *   request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectJSONP\n   * @description\n   * Creates a new request expectation for JSONP requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp} url HTTP url.\n   * @returns {requestHandler} Returns an object with a `respond` method that controls how a matched\n   *   request is handled.\n   */\n  createShortMethods('expect');\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#flush\n   * @description\n   * Flushes all pending requests using the trained responses.\n   *\n   * @param {number=} count Number of responses to flush (in the order they arrived). If undefined,\n   *   all pending requests will be flushed. If there are no pending requests when the flush method\n   *   is called an exception is thrown (as this typically a sign of programming error).\n   */\n  $httpBackend.flush = function(count) {\n    $rootScope.$digest();\n    if (!responses.length) throw new Error('No pending request to flush !');\n\n    if (angular.isDefined(count)) {\n      while (count--) {\n        if (!responses.length) throw new Error('No more pending request to flush !');\n        responses.shift()();\n      }\n    } else {\n      while (responses.length) {\n        responses.shift()();\n      }\n    }\n    $httpBackend.verifyNoOutstandingExpectation();\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingExpectation\n   * @description\n   * Verifies that all of the requests defined via the `expect` api were made. If any of the\n   * requests were not made, verifyNoOutstandingExpectation throws an exception.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingExpectation);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingExpectation = function() {\n    $rootScope.$digest();\n    if (expectations.length) {\n      throw new Error('Unsatisfied requests: ' + expectations.join(', '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingRequest\n   * @description\n   * Verifies that there are no outstanding requests that need to be flushed.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingRequest);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingRequest = function() {\n    if (responses.length) {\n      throw new Error('Unflushed requests: ' + responses.length);\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#resetExpectations\n   * @description\n   * Resets all request expectations, but preserves all backend definitions. Typically, you would\n   * call resetExpectations during a multiple-phase test when you want to reuse the same instance of\n   * $httpBackend mock.\n   */\n  $httpBackend.resetExpectations = function() {\n    expectations.length = 0;\n    responses.length = 0;\n  };\n\n  return $httpBackend;\n\n\n  function createShortMethods(prefix) {\n    angular.forEach(['GET', 'DELETE', 'JSONP', 'HEAD'], function(method) {\n     $httpBackend[prefix + method] = function(url, headers) {\n       return $httpBackend[prefix](method, url, undefined, headers);\n     };\n    });\n\n    angular.forEach(['PUT', 'POST', 'PATCH'], function(method) {\n      $httpBackend[prefix + method] = function(url, data, headers) {\n        return $httpBackend[prefix](method, url, data, headers);\n      };\n    });\n  }\n}\n\nfunction MockHttpExpectation(method, url, data, headers) {\n\n  this.data = data;\n  this.headers = headers;\n\n  this.match = function(m, u, d, h) {\n    if (method != m) return false;\n    if (!this.matchUrl(u)) return false;\n    if (angular.isDefined(d) && !this.matchData(d)) return false;\n    if (angular.isDefined(h) && !this.matchHeaders(h)) return false;\n    return true;\n  };\n\n  this.matchUrl = function(u) {\n    if (!url) return true;\n    if (angular.isFunction(url.test)) return url.test(u);\n    return url == u;\n  };\n\n  this.matchHeaders = function(h) {\n    if (angular.isUndefined(headers)) return true;\n    if (angular.isFunction(headers)) return headers(h);\n    return angular.equals(headers, h);\n  };\n\n  this.matchData = function(d) {\n    if (angular.isUndefined(data)) return true;\n    if (data && angular.isFunction(data.test)) return data.test(d);\n    if (data && angular.isFunction(data)) return data(d);\n    if (data && !angular.isString(data)) {\n      return angular.equals(angular.fromJson(angular.toJson(data)), angular.fromJson(d));\n    }\n    return data == d;\n  };\n\n  this.toString = function() {\n    return method + ' ' + url;\n  };\n}\n\nfunction createMockXhr() {\n  return new MockXhr();\n}\n\nfunction MockXhr() {\n\n  // hack for testing $http, $httpBackend\n  MockXhr.$$lastInstance = this;\n\n  this.open = function(method, url, async) {\n    this.$$method = method;\n    this.$$url = url;\n    this.$$async = async;\n    this.$$reqHeaders = {};\n    this.$$respHeaders = {};\n  };\n\n  this.send = function(data) {\n    this.$$data = data;\n  };\n\n  this.setRequestHeader = function(key, value) {\n    this.$$reqHeaders[key] = value;\n  };\n\n  this.getResponseHeader = function(name) {\n    // the lookup must be case insensitive,\n    // that's why we try two quick lookups first and full scan last\n    var header = this.$$respHeaders[name];\n    if (header) return header;\n\n    name = angular.lowercase(name);\n    header = this.$$respHeaders[name];\n    if (header) return header;\n\n    header = undefined;\n    angular.forEach(this.$$respHeaders, function(headerVal, headerName) {\n      if (!header && angular.lowercase(headerName) == name) header = headerVal;\n    });\n    return header;\n  };\n\n  this.getAllResponseHeaders = function() {\n    var lines = [];\n\n    angular.forEach(this.$$respHeaders, function(value, key) {\n      lines.push(key + ': ' + value);\n    });\n    return lines.join('\\n');\n  };\n\n  this.abort = angular.noop;\n}\n\n\n/**\n * @ngdoc service\n * @name $timeout\n * @description\n *\n * This service is just a simple decorator for {@link ng.$timeout $timeout} service\n * that adds a \"flush\" and \"verifyNoPendingTasks\" methods.\n */\n\nangular.mock.$TimeoutDecorator = function($delegate, $browser) {\n\n  /**\n   * @ngdoc method\n   * @name $timeout#flush\n   * @description\n   *\n   * Flushes the queue of pending tasks.\n   *\n   * @param {number=} delay maximum timeout amount to flush up until\n   */\n  $delegate.flush = function(delay) {\n    $browser.defer.flush(delay);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $timeout#verifyNoPendingTasks\n   * @description\n   *\n   * Verifies that there are no pending tasks that need to be flushed.\n   */\n  $delegate.verifyNoPendingTasks = function() {\n    if ($browser.deferredFns.length) {\n      throw new Error('Deferred tasks to flush (' + $browser.deferredFns.length + '): ' +\n          formatPendingTasksAsString($browser.deferredFns));\n    }\n  };\n\n  function formatPendingTasksAsString(tasks) {\n    var result = [];\n    angular.forEach(tasks, function(task) {\n      result.push('{id: ' + task.id + ', ' + 'time: ' + task.time + '}');\n    });\n\n    return result.join(', ');\n  }\n\n  return $delegate;\n};\n\nangular.mock.$RAFDecorator = function($delegate) {\n  var queue = [];\n  var rafFn = function(fn) {\n    var index = queue.length;\n    queue.push(fn);\n    return function() {\n      queue.splice(index, 1);\n    };\n  };\n\n  rafFn.supported = $delegate.supported;\n\n  rafFn.flush = function() {\n    if(queue.length === 0) {\n      throw new Error('No rAF callbacks present');\n    }\n\n    var length = queue.length;\n    for(var i=0;i<length;i++) {\n      queue[i]();\n    }\n\n    queue = [];\n  };\n\n  return rafFn;\n};\n\nangular.mock.$AsyncCallbackDecorator = function($delegate) {\n  var callbacks = [];\n  var addFn = function(fn) {\n    callbacks.push(fn);\n  };\n  addFn.flush = function() {\n    angular.forEach(callbacks, function(fn) {\n      fn();\n    });\n    callbacks = [];\n  };\n  return addFn;\n};\n\n/**\n *\n */\nangular.mock.$RootElementProvider = function() {\n  this.$get = function() {\n    return angular.element('<div ng-app></div>');\n  };\n};\n\n/**\n * @ngdoc module\n * @name ngMock\n * @packageName angular-mocks\n * @description\n *\n * # ngMock\n *\n * The `ngMock` module provides support to inject and mock Angular services into unit tests.\n * In addition, ngMock also extends various core ng services such that they can be\n * inspected and controlled in a synchronous manner within test code.\n *\n *\n * <div doc-module-components=\"ngMock\"></div>\n *\n */\nangular.module('ngMock', ['ng']).provider({\n  $browser: angular.mock.$BrowserProvider,\n  $exceptionHandler: angular.mock.$ExceptionHandlerProvider,\n  $log: angular.mock.$LogProvider,\n  $interval: angular.mock.$IntervalProvider,\n  $httpBackend: angular.mock.$HttpBackendProvider,\n  $rootElement: angular.mock.$RootElementProvider\n}).config(['$provide', function($provide) {\n  $provide.decorator('$timeout', angular.mock.$TimeoutDecorator);\n  $provide.decorator('$$rAF', angular.mock.$RAFDecorator);\n  $provide.decorator('$$asyncCallback', angular.mock.$AsyncCallbackDecorator);\n}]);\n\n/**\n * @ngdoc module\n * @name ngMockE2E\n * @module ngMockE2E\n * @packageName angular-mocks\n * @description\n *\n * The `ngMockE2E` is an angular module which contains mocks suitable for end-to-end testing.\n * Currently there is only one mock present in this module -\n * the {@link ngMockE2E.$httpBackend e2e $httpBackend} mock.\n */\nangular.module('ngMockE2E', ['ng']).config(['$provide', function($provide) {\n  $provide.decorator('$httpBackend', angular.mock.e2e.$httpBackendDecorator);\n}]);\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @module ngMockE2E\n * @description\n * Fake HTTP backend implementation suitable for end-to-end testing or backend-less development of\n * applications that use the {@link ng.$http $http service}.\n *\n * *Note*: For fake http backend implementation suitable for unit testing please see\n * {@link ngMock.$httpBackend unit-testing $httpBackend mock}.\n *\n * This implementation can be used to respond with static or dynamic responses via the `when` api\n * and its shortcuts (`whenGET`, `whenPOST`, etc) and optionally pass through requests to the\n * real $httpBackend for specific requests (e.g. to interact with certain remote apis or to fetch\n * templates from a webserver).\n *\n * As opposed to unit-testing, in an end-to-end testing scenario or in scenario when an application\n * is being developed with the real backend api replaced with a mock, it is often desirable for\n * certain category of requests to bypass the mock and issue a real http request (e.g. to fetch\n * templates or static files from the webserver). To configure the backend with this behavior\n * use the `passThrough` request handler of `when` instead of `respond`.\n *\n * Additionally, we don't want to manually have to flush mocked out requests like we do during unit\n * testing. For this reason the e2e $httpBackend flushes mocked out requests\n * automatically, closely simulating the behavior of the XMLHttpRequest object.\n *\n * To setup the application to run with this http backend, you have to create a module that depends\n * on the `ngMockE2E` and your application modules and defines the fake backend:\n *\n * ```js\n *   myAppDev = angular.module('myAppDev', ['myApp', 'ngMockE2E']);\n *   myAppDev.run(function($httpBackend) {\n *     phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *     $httpBackend.whenGET(/^\\/templates\\//).passThrough();\n *     //...\n *   });\n * ```\n *\n * Afterwards, bootstrap your app with this new module.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#when\n * @module ngMockE2E\n * @description\n * Creates a new backend definition.\n *\n * @param {string} method HTTP method.\n * @param {string|RegExp} url HTTP url.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n *   object and returns true if the headers match the current definition.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n *\n *  - respond –\n *    `{function([status,] data[, headers, statusText])\n *    | function(function(method, url, data, headers)}`\n *    – The respond method takes a set of static data to be returned or a function that can return\n *    an array containing response status (number), response data (string), response headers\n *    (Object), and the text for the status (string).\n *  - passThrough – `{function()}` – Any request matching a backend definition with\n *    `passThrough` handler will be passed through to the real backend (an XHR request will be made\n *    to the server.)\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenGET\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for GET requests. For more info see `when()`.\n *\n * @param {string|RegExp} url HTTP url.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenHEAD\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for HEAD requests. For more info see `when()`.\n *\n * @param {string|RegExp} url HTTP url.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenDELETE\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for DELETE requests. For more info see `when()`.\n *\n * @param {string|RegExp} url HTTP url.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPOST\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for POST requests. For more info see `when()`.\n *\n * @param {string|RegExp} url HTTP url.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPUT\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PUT requests.  For more info see `when()`.\n *\n * @param {string|RegExp} url HTTP url.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPATCH\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PATCH requests.  For more info see `when()`.\n *\n * @param {string|RegExp} url HTTP url.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenJSONP\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for JSONP requests. For more info see `when()`.\n *\n * @param {string|RegExp} url HTTP url.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   controls how a matched request is handled.\n */\nangular.mock.e2e = {};\nangular.mock.e2e.$httpBackendDecorator =\n  ['$rootScope', '$delegate', '$browser', createHttpBackendMock];\n\n\nangular.mock.clearDataCache = function() {\n  var key,\n      cache = angular.element.cache;\n\n  for(key in cache) {\n    if (Object.prototype.hasOwnProperty.call(cache,key)) {\n      var handle = cache[key].handle;\n\n      handle && angular.element(handle.elem).off();\n      delete cache[key];\n    }\n  }\n};\n\n\nif(window.jasmine || window.mocha) {\n\n  var currentSpec = null,\n      isSpecRunning = function() {\n        return !!currentSpec;\n      };\n\n\n  (window.beforeEach || window.setup)(function() {\n    currentSpec = this;\n  });\n\n  (window.afterEach || window.teardown)(function() {\n    var injector = currentSpec.$injector;\n\n    angular.forEach(currentSpec.$modules, function(module) {\n      if (module && module.$$hashKey) {\n        module.$$hashKey = undefined;\n      }\n    });\n\n    currentSpec.$injector = null;\n    currentSpec.$modules = null;\n    currentSpec = null;\n\n    if (injector) {\n      injector.get('$rootElement').off();\n      injector.get('$browser').pollFns.length = 0;\n    }\n\n    angular.mock.clearDataCache();\n\n    // clean up jquery's fragment cache\n    angular.forEach(angular.element.fragments, function(val, key) {\n      delete angular.element.fragments[key];\n    });\n\n    MockXhr.$$lastInstance = null;\n\n    angular.forEach(angular.callbacks, function(val, key) {\n      delete angular.callbacks[key];\n    });\n    angular.callbacks.counter = 0;\n  });\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function registers a module configuration code. It collects the configuration information\n   * which will be used when the injector is created by {@link angular.mock.inject inject}.\n   *\n   * See {@link angular.mock.inject inject} for usage example\n   *\n   * @param {...(string|Function|Object)} fns any number of modules which are represented as string\n   *        aliases or as anonymous module initialization functions. The modules are used to\n   *        configure the injector. The 'ng' and 'ngMock' modules are automatically loaded. If an\n   *        object literal is passed they will be registered as values in the module, the key being\n   *        the module name and the value being what is returned.\n   */\n  window.module = angular.mock.module = function() {\n    var moduleFns = Array.prototype.slice.call(arguments, 0);\n    return isSpecRunning() ? workFn() : workFn;\n    /////////////////////\n    function workFn() {\n      if (currentSpec.$injector) {\n        throw new Error('Injector already created, can not register a module!');\n      } else {\n        var modules = currentSpec.$modules || (currentSpec.$modules = []);\n        angular.forEach(moduleFns, function(module) {\n          if (angular.isObject(module) && !angular.isArray(module)) {\n            modules.push(function($provide) {\n              angular.forEach(module, function(value, key) {\n                $provide.value(key, value);\n              });\n            });\n          } else {\n            modules.push(module);\n          }\n        });\n      }\n    }\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.inject\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * The inject function wraps a function into an injectable function. The inject() creates new\n   * instance of {@link auto.$injector $injector} per test, which is then used for\n   * resolving references.\n   *\n   *\n   * ## Resolving References (Underscore Wrapping)\n   * Often, we would like to inject a reference once, in a `beforeEach()` block and reuse this\n   * in multiple `it()` clauses. To be able to do this we must assign the reference to a variable\n   * that is declared in the scope of the `describe()` block. Since we would, most likely, want\n   * the variable to have the same name of the reference we have a problem, since the parameter\n   * to the `inject()` function would hide the outer variable.\n   *\n   * To help with this, the injected parameters can, optionally, be enclosed with underscores.\n   * These are ignored by the injector when the reference name is resolved.\n   *\n   * For example, the parameter `_myService_` would be resolved as the reference `myService`.\n   * Since it is available in the function body as _myService_, we can then assign it to a variable\n   * defined in an outer scope.\n   *\n   * ```\n   * // Defined out reference variable outside\n   * var myService;\n   *\n   * // Wrap the parameter in underscores\n   * beforeEach( inject( function(_myService_){\n   *   myService = _myService_;\n   * }));\n   *\n   * // Use myService in a series of tests.\n   * it('makes use of myService', function() {\n   *   myService.doStuff();\n   * });\n   *\n   * ```\n   *\n   * See also {@link angular.mock.module angular.mock.module}\n   *\n   * ## Example\n   * Example of what a typical jasmine tests looks like with the inject method.\n   * ```js\n   *\n   *   angular.module('myApplicationModule', [])\n   *       .value('mode', 'app')\n   *       .value('version', 'v1.0.1');\n   *\n   *\n   *   describe('MyApp', function() {\n   *\n   *     // You need to load modules that you want to test,\n   *     // it loads only the \"ng\" module by default.\n   *     beforeEach(module('myApplicationModule'));\n   *\n   *\n   *     // inject() is used to inject arguments of all given functions\n   *     it('should provide a version', inject(function(mode, version) {\n   *       expect(version).toEqual('v1.0.1');\n   *       expect(mode).toEqual('app');\n   *     }));\n   *\n   *\n   *     // The inject and module method can also be used inside of the it or beforeEach\n   *     it('should override a version and test the new version is injected', function() {\n   *       // module() takes functions or strings (module aliases)\n   *       module(function($provide) {\n   *         $provide.value('version', 'overridden'); // override version here\n   *       });\n   *\n   *       inject(function(version) {\n   *         expect(version).toEqual('overridden');\n   *       });\n   *     });\n   *   });\n   *\n   * ```\n   *\n   * @param {...Function} fns any number of functions which will be injected using the injector.\n   */\n\n\n\n  var ErrorAddingDeclarationLocationStack = function(e, errorForStack) {\n    this.message = e.message;\n    this.name = e.name;\n    if (e.line) this.line = e.line;\n    if (e.sourceId) this.sourceId = e.sourceId;\n    if (e.stack && errorForStack)\n      this.stack = e.stack + '\\n' + errorForStack.stack;\n    if (e.stackArray) this.stackArray = e.stackArray;\n  };\n  ErrorAddingDeclarationLocationStack.prototype.toString = Error.prototype.toString;\n\n  window.inject = angular.mock.inject = function() {\n    var blockFns = Array.prototype.slice.call(arguments, 0);\n    var errorForStack = new Error('Declaration Location');\n    return isSpecRunning() ? workFn.call(currentSpec) : workFn;\n    /////////////////////\n    function workFn() {\n      var modules = currentSpec.$modules || [];\n\n      modules.unshift('ngMock');\n      modules.unshift('ng');\n      var injector = currentSpec.$injector;\n      if (!injector) {\n        injector = currentSpec.$injector = angular.injector(modules);\n      }\n      for(var i = 0, ii = blockFns.length; i < ii; i++) {\n        try {\n          /* jshint -W040 *//* Jasmine explicitly provides a `this` object when calling functions */\n          injector.invoke(blockFns[i] || angular.noop, this);\n          /* jshint +W040 */\n        } catch (e) {\n          if (e.stack && errorForStack) {\n            throw new ErrorAddingDeclarationLocationStack(e, errorForStack);\n          }\n          throw e;\n        } finally {\n          errorForStack = null;\n        }\n      }\n    }\n  };\n}\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.2/angular.js",
    "content": "/**\n * @license AngularJS v1.2.32\n * (c) 2010-2014 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, document, undefined) {'use strict';\n\n/**\n * @description\n *\n * This object provides a utility for producing rich Error messages within\n * Angular. It can be called as follows:\n *\n * var exampleMinErr = minErr('example');\n * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);\n *\n * The above creates an instance of minErr in the example namespace. The\n * resulting error will have a namespaced error code of example.one.  The\n * resulting error will replace {0} with the value of foo, and {1} with the\n * value of bar. The object is not restricted in the number of arguments it can\n * take.\n *\n * If fewer arguments are specified than necessary for interpolation, the extra\n * interpolation markers will be preserved in the final string.\n *\n * Since data will be parsed statically during a build step, some restrictions\n * are applied with respect to how minErr instances are created and called.\n * Instances should have names of the form namespaceMinErr for a minErr created\n * using minErr('namespace') . Error codes, namespaces and template strings\n * should all be static strings, not variables or general expressions.\n *\n * @param {string} module The namespace to use for the new minErr instance.\n * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance\n */\n\nfunction minErr(module) {\n  return function () {\n    var code = arguments[0],\n      prefix = '[' + (module ? module + ':' : '') + code + '] ',\n      template = arguments[1],\n      templateArgs = arguments,\n      stringify = function (obj) {\n        if (typeof obj === 'function') {\n          return obj.toString().replace(/ \\{[\\s\\S]*$/, '');\n        } else if (typeof obj === 'undefined') {\n          return 'undefined';\n        } else if (typeof obj !== 'string') {\n          return JSON.stringify(obj);\n        }\n        return obj;\n      },\n      message, i;\n\n    message = prefix + template.replace(/\\{\\d+\\}/g, function (match) {\n      var index = +match.slice(1, -1), arg;\n\n      if (index + 2 < templateArgs.length) {\n        arg = templateArgs[index + 2];\n        if (typeof arg === 'function') {\n          return arg.toString().replace(/ ?\\{[\\s\\S]*$/, '');\n        } else if (typeof arg === 'undefined') {\n          return 'undefined';\n        } else if (typeof arg !== 'string') {\n          return toJson(arg);\n        }\n        return arg;\n      }\n      return match;\n    });\n\n    message = message + '\\nhttp://errors.angularjs.org/1.2.32/' +\n      (module ? module + '/' : '') + code;\n    for (i = 2; i < arguments.length; i++) {\n      message = message + (i == 2 ? '?' : '&') + 'p' + (i-2) + '=' +\n        encodeURIComponent(stringify(arguments[i]));\n    }\n\n    return new Error(message);\n  };\n}\n\n/* We need to tell jshint what variables are being exported */\n/* global angular: true,\n    msie: true,\n    jqLite: true,\n    jQuery: true,\n    slice: true,\n    push: true,\n    toString: true,\n    ngMinErr: true,\n    angularModule: true,\n    nodeName_: true,\n    uid: true,\n    VALIDITY_STATE_PROPERTY: true,\n\n    lowercase: true,\n    uppercase: true,\n    manualLowercase: true,\n    manualUppercase: true,\n    nodeName_: true,\n    isArrayLike: true,\n    forEach: true,\n    sortedKeys: true,\n    forEachSorted: true,\n    reverseParams: true,\n    nextUid: true,\n    setHashKey: true,\n    extend: true,\n    int: true,\n    inherit: true,\n    noop: true,\n    identity: true,\n    valueFn: true,\n    isUndefined: true,\n    isDefined: true,\n    isObject: true,\n    isString: true,\n    isNumber: true,\n    isDate: true,\n    isArray: true,\n    isFunction: true,\n    isRegExp: true,\n    isWindow: true,\n    isScope: true,\n    isFile: true,\n    isBlob: true,\n    isBoolean: true,\n    isPromiseLike: true,\n    trim: true,\n    isElement: true,\n    makeMap: true,\n    map: true,\n    size: true,\n    includes: true,\n    indexOf: true,\n    arrayRemove: true,\n    isLeafNode: true,\n    copy: true,\n    shallowCopy: true,\n    equals: true,\n    csp: true,\n    concat: true,\n    sliceArgs: true,\n    bind: true,\n    toJsonReplacer: true,\n    toJson: true,\n    fromJson: true,\n    toBoolean: true,\n    startingTag: true,\n    tryDecodeURIComponent: true,\n    parseKeyValue: true,\n    toKeyValue: true,\n    encodeUriSegment: true,\n    encodeUriQuery: true,\n    angularInit: true,\n    bootstrap: true,\n    snake_case: true,\n    bindJQuery: true,\n    assertArg: true,\n    assertArgFn: true,\n    assertNotHasOwnProperty: true,\n    getter: true,\n    getBlockElements: true,\n    hasOwnProperty: true,\n*/\n\n////////////////////////////////////\n\n/**\n * @ngdoc module\n * @name ng\n * @module ng\n * @description\n *\n * # ng (core module)\n * The ng module is loaded by default when an AngularJS application is started. The module itself\n * contains the essential components for an AngularJS application to function. The table below\n * lists a high level breakdown of each of the services/factories, filters, directives and testing\n * components available within this core module.\n *\n * <div doc-module-components=\"ng\"></div>\n */\n\n// The name of a form control's ValidityState property.\n// This is used so that it's possible for internal tests to create mock ValidityStates.\nvar VALIDITY_STATE_PROPERTY = 'validity';\n\n/**\n * @ngdoc function\n * @name angular.lowercase\n * @module ng\n * @kind function\n *\n * @description Converts the specified string to lowercase.\n * @param {string} string String to be converted to lowercase.\n * @returns {string} Lowercased string.\n */\nvar lowercase = function(string){return isString(string) ? string.toLowerCase() : string;};\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\n/**\n * @ngdoc function\n * @name angular.uppercase\n * @module ng\n * @kind function\n *\n * @description Converts the specified string to uppercase.\n * @param {string} string String to be converted to uppercase.\n * @returns {string} Uppercased string.\n */\nvar uppercase = function(string){return isString(string) ? string.toUpperCase() : string;};\n\n\nvar manualLowercase = function(s) {\n  /* jshint bitwise: false */\n  return isString(s)\n      ? s.replace(/[A-Z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) | 32);})\n      : s;\n};\nvar manualUppercase = function(s) {\n  /* jshint bitwise: false */\n  return isString(s)\n      ? s.replace(/[a-z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) & ~32);})\n      : s;\n};\n\n\n// String#toLowerCase and String#toUpperCase don't produce correct results in browsers with Turkish\n// locale, for this reason we need to detect this case and redefine lowercase/uppercase methods\n// with correct but slower alternatives.\nif ('i' !== 'I'.toLowerCase()) {\n  lowercase = manualLowercase;\n  uppercase = manualUppercase;\n}\n\n\nvar\n    msie,             // holds major version number for IE, or NaN if UA is not IE.\n    jqLite,           // delay binding since jQuery could be loaded after us.\n    jQuery,           // delay binding\n    slice             = [].slice,\n    push              = [].push,\n    toString          = Object.prototype.toString,\n    ngMinErr          = minErr('ng'),\n\n    /** @name angular */\n    angular           = window.angular || (window.angular = {}),\n    angularModule,\n    nodeName_,\n    uid               = ['0', '0', '0'];\n\n/**\n * IE 11 changed the format of the UserAgent string.\n * See http://msdn.microsoft.com/en-us/library/ms537503.aspx\n */\nmsie = int((/msie (\\d+)/.exec(lowercase(navigator.userAgent)) || [])[1]);\nif (isNaN(msie)) {\n  msie = int((/trident\\/.*; rv:(\\d+)/.exec(lowercase(navigator.userAgent)) || [])[1]);\n}\n\n\n/**\n * @private\n * @param {*} obj\n * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,\n *                   String ...)\n */\nfunction isArrayLike(obj) {\n  if (obj == null || isWindow(obj)) {\n    return false;\n  }\n\n  var length = obj.length;\n\n  if (obj.nodeType === 1 && length) {\n    return true;\n  }\n\n  return isString(obj) || isArray(obj) || length === 0 ||\n         typeof length === 'number' && length > 0 && (length - 1) in obj;\n}\n\n/**\n * @ngdoc function\n * @name angular.forEach\n * @module ng\n * @kind function\n *\n * @description\n * Invokes the `iterator` function once for each item in `obj` collection, which can be either an\n * object or an array. The `iterator` function is invoked with `iterator(value, key)`, where `value`\n * is the value of an object property or an array element and `key` is the object property key or\n * array element index. Specifying a `context` for the function is optional.\n *\n * It is worth noting that `.forEach` does not iterate over inherited properties because it filters\n * using the `hasOwnProperty` method.\n *\n   ```js\n     var values = {name: 'misko', gender: 'male'};\n     var log = [];\n     angular.forEach(values, function(value, key) {\n       this.push(key + ': ' + value);\n     }, log);\n     expect(log).toEqual(['name: misko', 'gender: male']);\n   ```\n *\n * @param {Object|Array} obj Object to iterate over.\n * @param {Function} iterator Iterator function.\n * @param {Object=} context Object to become context (`this`) for the iterator function.\n * @returns {Object|Array} Reference to `obj`.\n */\nfunction forEach(obj, iterator, context) {\n  var key;\n  if (obj) {\n    if (isFunction(obj)) {\n      for (key in obj) {\n        // Need to check if hasOwnProperty exists,\n        // as on IE8 the result of querySelectorAll is an object without a hasOwnProperty function\n        if (key != 'prototype' && key != 'length' && key != 'name' && (!obj.hasOwnProperty || obj.hasOwnProperty(key))) {\n          iterator.call(context, obj[key], key);\n        }\n      }\n    } else if (isArray(obj) || isArrayLike(obj)) {\n      for (key = 0; key < obj.length; key++) {\n        iterator.call(context, obj[key], key);\n      }\n    } else if (obj.forEach && obj.forEach !== forEach) {\n        obj.forEach(iterator, context);\n    } else {\n      for (key in obj) {\n        if (obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key);\n        }\n      }\n    }\n  }\n  return obj;\n}\n\nfunction sortedKeys(obj) {\n  var keys = [];\n  for (var key in obj) {\n    if (obj.hasOwnProperty(key)) {\n      keys.push(key);\n    }\n  }\n  return keys.sort();\n}\n\nfunction forEachSorted(obj, iterator, context) {\n  var keys = sortedKeys(obj);\n  for ( var i = 0; i < keys.length; i++) {\n    iterator.call(context, obj[keys[i]], keys[i]);\n  }\n  return keys;\n}\n\n\n/**\n * when using forEach the params are value, key, but it is often useful to have key, value.\n * @param {function(string, *)} iteratorFn\n * @returns {function(*, string)}\n */\nfunction reverseParams(iteratorFn) {\n  return function(value, key) { iteratorFn(key, value); };\n}\n\n/**\n * A consistent way of creating unique IDs in angular. The ID is a sequence of alpha numeric\n * characters such as '012ABC'. The reason why we are not using simply a number counter is that\n * the number string gets longer over time, and it can also overflow, where as the nextId\n * will grow much slower, it is a string, and it will never overflow.\n *\n * @returns {string} an unique alpha-numeric string\n */\nfunction nextUid() {\n  var index = uid.length;\n  var digit;\n\n  while(index) {\n    index--;\n    digit = uid[index].charCodeAt(0);\n    if (digit == 57 /*'9'*/) {\n      uid[index] = 'A';\n      return uid.join('');\n    }\n    if (digit == 90  /*'Z'*/) {\n      uid[index] = '0';\n    } else {\n      uid[index] = String.fromCharCode(digit + 1);\n      return uid.join('');\n    }\n  }\n  uid.unshift('0');\n  return uid.join('');\n}\n\n\n/**\n * Set or clear the hashkey for an object.\n * @param obj object\n * @param h the hashkey (!truthy to delete the hashkey)\n */\nfunction setHashKey(obj, h) {\n  if (h) {\n    obj.$$hashKey = h;\n  }\n  else {\n    delete obj.$$hashKey;\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.extend\n * @module ng\n * @kind function\n *\n * @description\n * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n * to `dst`. You can specify multiple `src` objects.\n *\n * @param {Object} dst Destination object.\n * @param {...Object} src Source object(s).\n * @returns {Object} Reference to `dst`.\n */\nfunction extend(dst) {\n  var h = dst.$$hashKey;\n  forEach(arguments, function(obj) {\n    if (obj !== dst) {\n      forEach(obj, function(value, key) {\n        dst[key] = value;\n      });\n    }\n  });\n\n  setHashKey(dst,h);\n  return dst;\n}\n\nfunction int(str) {\n  return parseInt(str, 10);\n}\n\n\nfunction inherit(parent, extra) {\n  return extend(new (extend(function() {}, {prototype:parent}))(), extra);\n}\n\n/**\n * @ngdoc function\n * @name angular.noop\n * @module ng\n * @kind function\n *\n * @description\n * A function that performs no operations. This function can be useful when writing code in the\n * functional style.\n   ```js\n     function foo(callback) {\n       var result = calculateResult();\n       (callback || angular.noop)(result);\n     }\n   ```\n */\nfunction noop() {}\nnoop.$inject = [];\n\n\n/**\n * @ngdoc function\n * @name angular.identity\n * @module ng\n * @kind function\n *\n * @description\n * A function that returns its first argument. This function is useful when writing code in the\n * functional style.\n *\n   ```js\n     function transformer(transformationFn, value) {\n       return (transformationFn || angular.identity)(value);\n     };\n   ```\n  * @param {*} value to be returned.\n  * @returns {*} the value passed in.\n */\nfunction identity($) {return $;}\nidentity.$inject = [];\n\n\nfunction valueFn(value) {return function() {return value;};}\n\n/**\n * @ngdoc function\n * @name angular.isUndefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is undefined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is undefined.\n */\nfunction isUndefined(value){return typeof value === 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is defined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is defined.\n */\nfunction isDefined(value){return typeof value !== 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isObject\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not\n * considered to be objects. Note that JavaScript arrays are objects.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Object` but not `null`.\n */\nfunction isObject(value){return value != null && typeof value === 'object';}\n\n\n/**\n * @ngdoc function\n * @name angular.isString\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `String`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `String`.\n */\nfunction isString(value){return typeof value === 'string';}\n\n\n/**\n * @ngdoc function\n * @name angular.isNumber\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Number`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Number`.\n */\nfunction isNumber(value){return typeof value === 'number';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDate\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a value is a date.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Date`.\n */\nfunction isDate(value) {\n  return toString.call(value) === '[object Date]';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isArray\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Array`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Array`.\n */\nvar isArray = (function() {\n  if (!isFunction(Array.isArray)) {\n    return function(value) {\n      return toString.call(value) === '[object Array]';\n    };\n  }\n  return Array.isArray;\n})();\n\n/**\n * @ngdoc function\n * @name angular.isFunction\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Function`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Function`.\n */\nfunction isFunction(value){return typeof value === 'function';}\n\n\n/**\n * Determines if a value is a regular expression object.\n *\n * @private\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `RegExp`.\n */\nfunction isRegExp(value) {\n  return toString.call(value) === '[object RegExp]';\n}\n\n\n/**\n * Checks if `obj` is a window object.\n *\n * @private\n * @param {*} obj Object to check\n * @returns {boolean} True if `obj` is a window obj.\n */\nfunction isWindow(obj) {\n  return obj && obj.document && obj.location && obj.alert && obj.setInterval;\n}\n\n\nfunction isScope(obj) {\n  return obj && obj.$evalAsync && obj.$watch;\n}\n\n\nfunction isFile(obj) {\n  return toString.call(obj) === '[object File]';\n}\n\n\nfunction isBlob(obj) {\n  return toString.call(obj) === '[object Blob]';\n}\n\n\nfunction isBoolean(value) {\n  return typeof value === 'boolean';\n}\n\n\nfunction isPromiseLike(obj) {\n  return obj && isFunction(obj.then);\n}\n\n\nvar trim = (function() {\n  // native trim is way faster: http://jsperf.com/angular-trim-test\n  // but IE doesn't have it... :-(\n  // TODO: we should move this into IE/ES5 polyfill\n  if (!String.prototype.trim) {\n    return function(value) {\n      return isString(value) ? value.replace(/^\\s\\s*/, '').replace(/\\s\\s*$/, '') : value;\n    };\n  }\n  return function(value) {\n    return isString(value) ? value.trim() : value;\n  };\n})();\n\n\n/**\n * @ngdoc function\n * @name angular.isElement\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a DOM element (or wrapped jQuery element).\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).\n */\nfunction isElement(node) {\n  return !!(node &&\n    (node.nodeName  // we are a direct element\n    || (node.prop && node.attr && node.find)));  // we have an on and find method part of jQuery API\n}\n\n/**\n * @param str 'key1,key2,...'\n * @returns {object} in the form of {key1:true, key2:true, ...}\n */\nfunction makeMap(str) {\n  var obj = {}, items = str.split(\",\"), i;\n  for ( i = 0; i < items.length; i++ )\n    obj[ items[i] ] = true;\n  return obj;\n}\n\n\nif (msie < 9) {\n  nodeName_ = function(element) {\n    element = element.nodeName ? element : element[0];\n    return (element.scopeName && element.scopeName != 'HTML')\n      ? uppercase(element.scopeName + ':' + element.nodeName) : element.nodeName;\n  };\n} else {\n  nodeName_ = function(element) {\n    return element.nodeName ? element.nodeName : element[0].nodeName;\n  };\n}\n\n\nfunction map(obj, iterator, context) {\n  var results = [];\n  forEach(obj, function(value, index, list) {\n    results.push(iterator.call(context, value, index, list));\n  });\n  return results;\n}\n\n\n/**\n * @description\n * Determines the number of elements in an array, the number of properties an object has, or\n * the length of a string.\n *\n * Note: This function is used to augment the Object type in Angular expressions. See\n * {@link angular.Object} for more information about Angular arrays.\n *\n * @param {Object|Array|string} obj Object, array, or string to inspect.\n * @param {boolean} [ownPropsOnly=false] Count only \"own\" properties in an object\n * @returns {number} The size of `obj` or `0` if `obj` is neither an object nor an array.\n */\nfunction size(obj, ownPropsOnly) {\n  var count = 0, key;\n\n  if (isArray(obj) || isString(obj)) {\n    return obj.length;\n  } else if (isObject(obj)) {\n    for (key in obj)\n      if (!ownPropsOnly || obj.hasOwnProperty(key))\n        count++;\n  }\n\n  return count;\n}\n\n\nfunction includes(array, obj) {\n  return indexOf(array, obj) != -1;\n}\n\nfunction indexOf(array, obj) {\n  if (array.indexOf) return array.indexOf(obj);\n\n  for (var i = 0; i < array.length; i++) {\n    if (obj === array[i]) return i;\n  }\n  return -1;\n}\n\nfunction arrayRemove(array, value) {\n  var index = indexOf(array, value);\n  if (index >=0)\n    array.splice(index, 1);\n  return value;\n}\n\nfunction isLeafNode (node) {\n  if (node) {\n    switch (node.nodeName) {\n    case \"OPTION\":\n    case \"PRE\":\n    case \"TITLE\":\n      return true;\n    }\n  }\n  return false;\n}\n\n/**\n * @ngdoc function\n * @name angular.copy\n * @module ng\n * @kind function\n *\n * @description\n * Creates a deep copy of `source`, which should be an object or an array.\n *\n * * If no destination is supplied, a copy of the object or array is created.\n * * If a destination is provided, all of its elements (for array) or properties (for objects)\n *   are deleted and then all elements/properties from the source are copied to it.\n * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.\n * * If `source` is identical to 'destination' an exception will be thrown.\n *\n * @param {*} source The source that will be used to make a copy.\n *                   Can be any type, including primitives, `null`, and `undefined`.\n * @param {(Object|Array)=} destination Destination into which the source is copied. If\n *     provided, must be of the same type as `source`.\n * @returns {*} The copy or updated `destination`, if `destination` was specified.\n *\n * @example\n <example module=\"copyExample\">\n <file name=\"index.html\">\n <div ng-controller=\"ExampleController\">\n <form novalidate class=\"simple-form\">\n Name: <input type=\"text\" ng-model=\"user.name\" /><br />\n E-mail: <input type=\"email\" ng-model=\"user.email\" /><br />\n Gender: <input type=\"radio\" ng-model=\"user.gender\" value=\"male\" />male\n <input type=\"radio\" ng-model=\"user.gender\" value=\"female\" />female<br />\n <button ng-click=\"reset()\">RESET</button>\n <button ng-click=\"update(user)\">SAVE</button>\n </form>\n <pre>form = {{user | json}}</pre>\n <pre>master = {{master | json}}</pre>\n </div>\n\n <script>\n  angular.module('copyExample', [])\n    .controller('ExampleController', ['$scope', function($scope) {\n      $scope.master= {};\n\n      $scope.update = function(user) {\n        // Example with 1 argument\n        $scope.master= angular.copy(user);\n      };\n\n      $scope.reset = function() {\n        // Example with 2 arguments\n        angular.copy($scope.master, $scope.user);\n      };\n\n      $scope.reset();\n    }]);\n </script>\n </file>\n </example>\n */\nfunction copy(source, destination, stackSource, stackDest) {\n  if (isWindow(source) || isScope(source)) {\n    throw ngMinErr('cpws',\n      \"Can't copy! Making copies of Window or Scope instances is not supported.\");\n  }\n\n  if (!destination) {\n    destination = source;\n    if (source) {\n      if (isArray(source)) {\n        destination = copy(source, [], stackSource, stackDest);\n      } else if (isDate(source)) {\n        destination = new Date(source.getTime());\n      } else if (isRegExp(source)) {\n        destination = new RegExp(source.source, source.toString().match(/[^\\/]*$/)[0]);\n        destination.lastIndex = source.lastIndex;\n      } else if (isObject(source)) {\n        destination = copy(source, {}, stackSource, stackDest);\n      }\n    }\n  } else {\n    if (source === destination) throw ngMinErr('cpi',\n      \"Can't copy! Source and destination are identical.\");\n\n    stackSource = stackSource || [];\n    stackDest = stackDest || [];\n\n    if (isObject(source)) {\n      var index = indexOf(stackSource, source);\n      if (index !== -1) return stackDest[index];\n\n      stackSource.push(source);\n      stackDest.push(destination);\n    }\n\n    var result;\n    if (isArray(source)) {\n      destination.length = 0;\n      for ( var i = 0; i < source.length; i++) {\n        result = copy(source[i], null, stackSource, stackDest);\n        if (isObject(source[i])) {\n          stackSource.push(source[i]);\n          stackDest.push(result);\n        }\n        destination.push(result);\n      }\n    } else {\n      var h = destination.$$hashKey;\n      if (isArray(destination)) {\n        destination.length = 0;\n      } else {\n        forEach(destination, function(value, key) {\n          delete destination[key];\n        });\n      }\n      for ( var key in source) {\n        result = copy(source[key], null, stackSource, stackDest);\n        if (isObject(source[key])) {\n          stackSource.push(source[key]);\n          stackDest.push(result);\n        }\n        destination[key] = result;\n      }\n      setHashKey(destination,h);\n    }\n\n  }\n  return destination;\n}\n\n/**\n * Creates a shallow copy of an object, an array or a primitive\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for ( var i = 0; i < src.length; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (hasOwnProperty.call(src, key) && !(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.equals\n * @module ng\n * @kind function\n *\n * @description\n * Determines if two objects or two values are equivalent. Supports value types, regular\n * expressions, arrays and objects.\n *\n * Two objects or values are considered equivalent if at least one of the following is true:\n *\n * * Both objects or values pass `===` comparison.\n * * Both objects or values are of the same type and all of their properties are equal by\n *   comparing them with `angular.equals`.\n * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)\n * * Both values represent the same regular expression (In JavaScript,\n *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual\n *   representation matches).\n *\n * During a property comparison, properties of `function` type and properties with names\n * that begin with `$` are ignored.\n *\n * Scope and DOMWindow objects are being compared only by identify (`===`).\n *\n * @param {*} o1 Object or value to compare.\n * @param {*} o2 Object or value to compare.\n * @returns {boolean} True if arguments are equal.\n */\nfunction equals(o1, o2) {\n  if (o1 === o2) return true;\n  if (o1 === null || o2 === null) return false;\n  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN\n  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;\n  if (t1 == t2) {\n    if (t1 == 'object') {\n      if (isArray(o1)) {\n        if (!isArray(o2)) return false;\n        if ((length = o1.length) == o2.length) {\n          for(key=0; key<length; key++) {\n            if (!equals(o1[key], o2[key])) return false;\n          }\n          return true;\n        }\n      } else if (isDate(o1)) {\n        if (!isDate(o2)) return false;\n        return (isNaN(o1.getTime()) && isNaN(o2.getTime())) || (o1.getTime() === o2.getTime());\n      } else if (isRegExp(o1) && isRegExp(o2)) {\n        return o1.toString() == o2.toString();\n      } else {\n        if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) || isArray(o2)) return false;\n        keySet = {};\n        for(key in o1) {\n          if (key.charAt(0) === '$' || isFunction(o1[key])) continue;\n          if (!equals(o1[key], o2[key])) return false;\n          keySet[key] = true;\n        }\n        for(key in o2) {\n          if (!keySet.hasOwnProperty(key) &&\n              key.charAt(0) !== '$' &&\n              o2[key] !== undefined &&\n              !isFunction(o2[key])) return false;\n        }\n        return true;\n      }\n    }\n  }\n  return false;\n}\n\nvar csp = function() {\n  if (isDefined(csp.isActive_)) return csp.isActive_;\n\n  var active = !!(document.querySelector('[ng-csp]') ||\n                  document.querySelector('[data-ng-csp]'));\n\n  if (!active) {\n    try {\n      /* jshint -W031, -W054 */\n      new Function('');\n      /* jshint +W031, +W054 */\n    } catch (e) {\n      active = true;\n    }\n  }\n\n  return (csp.isActive_ = active);\n};\n\n\n\nfunction concat(array1, array2, index) {\n  return array1.concat(slice.call(array2, index));\n}\n\nfunction sliceArgs(args, startIndex) {\n  return slice.call(args, startIndex || 0);\n}\n\n\n/* jshint -W101 */\n/**\n * @ngdoc function\n * @name angular.bind\n * @module ng\n * @kind function\n *\n * @description\n * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for\n * `fn`). You can supply optional `args` that are prebound to the function. This feature is also\n * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as\n * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).\n *\n * @param {Object} self Context which `fn` should be evaluated in.\n * @param {function()} fn Function to be bound.\n * @param {...*} args Optional arguments to be prebound to the `fn` function call.\n * @returns {function()} Function that wraps the `fn` with all the specified bindings.\n */\n/* jshint +W101 */\nfunction bind(self, fn) {\n  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];\n  if (isFunction(fn) && !(fn instanceof RegExp)) {\n    return curryArgs.length\n      ? function() {\n          return arguments.length\n            ? fn.apply(self, curryArgs.concat(slice.call(arguments, 0)))\n            : fn.apply(self, curryArgs);\n        }\n      : function() {\n          return arguments.length\n            ? fn.apply(self, arguments)\n            : fn.call(self);\n        };\n  } else {\n    // in IE, native methods are not functions so they cannot be bound (note: they don't need to be)\n    return fn;\n  }\n}\n\n\nfunction toJsonReplacer(key, value) {\n  var val = value;\n\n  if (typeof key === 'string' && key.charAt(0) === '$') {\n    val = undefined;\n  } else if (isWindow(value)) {\n    val = '$WINDOW';\n  } else if (value &&  document === value) {\n    val = '$DOCUMENT';\n  } else if (isScope(value)) {\n    val = '$SCOPE';\n  }\n\n  return val;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.toJson\n * @module ng\n * @kind function\n *\n * @description\n * Serializes input into a JSON-formatted string. Properties with leading $ characters will be\n * stripped since angular uses this notation internally.\n *\n * @param {Object|Array|Date|string|number} obj Input to be serialized into JSON.\n * @param {boolean=} pretty If set to true, the JSON output will contain newlines and whitespace.\n * @returns {string|undefined} JSON-ified string representing `obj`.\n */\nfunction toJson(obj, pretty) {\n  if (typeof obj === 'undefined') return undefined;\n  return JSON.stringify(obj, toJsonReplacer, pretty ? '  ' : null);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.fromJson\n * @module ng\n * @kind function\n *\n * @description\n * Deserializes a JSON string.\n *\n * @param {string} json JSON string to deserialize.\n * @returns {Object|Array|string|number} Deserialized thingy.\n */\nfunction fromJson(json) {\n  return isString(json)\n      ? JSON.parse(json)\n      : json;\n}\n\n\nfunction toBoolean(value) {\n  if (typeof value === 'function') {\n    value = true;\n  } else if (value && value.length !== 0) {\n    var v = lowercase(\"\" + value);\n    value = !(v == 'f' || v == '0' || v == 'false' || v == 'no' || v == 'n' || v == '[]');\n  } else {\n    value = false;\n  }\n  return value;\n}\n\n/**\n * @returns {string} Returns the string representation of the element.\n */\nfunction startingTag(element) {\n  element = jqLite(element).clone();\n  try {\n    // turns out IE does not let you set .html() on elements which\n    // are not allowed to have children. So we just ignore it.\n    element.empty();\n  } catch(e) {}\n  // As Per DOM Standards\n  var TEXT_NODE = 3;\n  var elemHtml = jqLite('<div>').append(element).html();\n  try {\n    return element[0].nodeType === TEXT_NODE ? lowercase(elemHtml) :\n        elemHtml.\n          match(/^(<[^>]+>)/)[1].\n          replace(/^<([\\w\\-]+)/, function(match, nodeName) { return '<' + lowercase(nodeName); });\n  } catch(e) {\n    return lowercase(elemHtml);\n  }\n\n}\n\n\n/////////////////////////////////////////////////\n\n/**\n * Tries to decode the URI component without throwing an exception.\n *\n * @private\n * @param str value potential URI component to check.\n * @returns {boolean} True if `value` can be decoded\n * with the decodeURIComponent function.\n */\nfunction tryDecodeURIComponent(value) {\n  try {\n    return decodeURIComponent(value);\n  } catch(e) {\n    // Ignore any invalid uri component\n  }\n}\n\n\n/**\n * Parses an escaped url query string into key-value pairs.\n * @returns {Object.<string,boolean|Array>}\n */\nfunction parseKeyValue(/**string*/keyValue) {\n  var obj = {}, key_value, key;\n  forEach((keyValue || \"\").split('&'), function(keyValue) {\n    if ( keyValue ) {\n      key_value = keyValue.replace(/\\+/g,'%20').split('=');\n      key = tryDecodeURIComponent(key_value[0]);\n      if ( isDefined(key) ) {\n        var val = isDefined(key_value[1]) ? tryDecodeURIComponent(key_value[1]) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if(isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key],val];\n        }\n      }\n    }\n  });\n  return obj;\n}\n\nfunction toKeyValue(obj) {\n  var parts = [];\n  forEach(obj, function(value, key) {\n    if (isArray(value)) {\n      forEach(value, function(arrayValue) {\n        parts.push(encodeUriQuery(key, true) +\n                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));\n      });\n    } else {\n    parts.push(encodeUriQuery(key, true) +\n               (value === true ? '' : '=' + encodeUriQuery(value, true)));\n    }\n  });\n  return parts.length ? parts.join('&') : '';\n}\n\n\n/**\n * We need our custom method because encodeURIComponent is too aggressive and doesn't follow\n * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path\n * segments:\n *    segment       = *pchar\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriSegment(val) {\n  return encodeUriQuery(val, true).\n             replace(/%26/gi, '&').\n             replace(/%3D/gi, '=').\n             replace(/%2B/gi, '+');\n}\n\n\n/**\n * This method is intended for encoding *key* or *value* parts of query component. We need a custom\n * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be\n * encoded per http://tools.ietf.org/html/rfc3986:\n *    query       = *( pchar / \"/\" / \"?\" )\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriQuery(val, pctEncodeSpaces) {\n  return encodeURIComponent(val).\n             replace(/%40/gi, '@').\n             replace(/%3A/gi, ':').\n             replace(/%24/g, '$').\n             replace(/%2C/gi, ',').\n             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));\n}\n\n\n/**\n * @ngdoc directive\n * @name ngApp\n * @module ng\n *\n * @element ANY\n * @param {angular.Module} ngApp an optional application\n *   {@link angular.module module} name to load.\n *\n * @description\n *\n * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive\n * designates the **root element** of the application and is typically placed near the root element\n * of the page - e.g. on the `<body>` or `<html>` tags.\n *\n * Only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`\n * found in the document will be used to define the root element to auto-bootstrap as an\n * application. To run multiple applications in an HTML document you must manually bootstrap them using\n * {@link angular.bootstrap} instead. AngularJS applications cannot be nested within each other.\n *\n * You can specify an **AngularJS module** to be used as the root module for the application.  This\n * module will be loaded into the {@link auto.$injector} when the application is bootstrapped and\n * should contain the application code needed or have dependencies on other modules that will\n * contain the code. See {@link angular.module} for more information.\n *\n * In the example below if the `ngApp` directive were not placed on the `html` element then the\n * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`\n * would not be resolved to `3`.\n *\n * `ngApp` is the easiest, and most common, way to bootstrap an application.\n *\n <example module=\"ngAppDemo\">\n   <file name=\"index.html\">\n   <div ng-controller=\"ngAppDemoController\">\n     I can add: {{a}} + {{b}} =  {{ a+b }}\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {\n     $scope.a = 1;\n     $scope.b = 2;\n   });\n   </file>\n </example>\n *\n */\nfunction angularInit(element, bootstrap) {\n  var elements = [element],\n      appElement,\n      module,\n      names = ['ng:app', 'ng-app', 'x-ng-app', 'data-ng-app'],\n      NG_APP_CLASS_REGEXP = /\\sng[:\\-]app(:\\s*([\\w\\d_]+);?)?\\s/;\n\n  function append(element) {\n    element && elements.push(element);\n  }\n\n  forEach(names, function(name) {\n    names[name] = true;\n    append(document.getElementById(name));\n    name = name.replace(':', '\\\\:');\n    if (element.querySelectorAll) {\n      forEach(element.querySelectorAll('.' + name), append);\n      forEach(element.querySelectorAll('.' + name + '\\\\:'), append);\n      forEach(element.querySelectorAll('[' + name + ']'), append);\n    }\n  });\n\n  forEach(elements, function(element) {\n    if (!appElement) {\n      var className = ' ' + element.className + ' ';\n      var match = NG_APP_CLASS_REGEXP.exec(className);\n      if (match) {\n        appElement = element;\n        module = (match[2] || '').replace(/\\s+/g, ',');\n      } else {\n        forEach(element.attributes, function(attr) {\n          if (!appElement && names[attr.name]) {\n            appElement = element;\n            module = attr.value;\n          }\n        });\n      }\n    }\n  });\n  if (appElement) {\n    bootstrap(appElement, module ? [module] : []);\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.bootstrap\n * @module ng\n * @description\n * Use this function to manually start up angular application.\n *\n * See: {@link guide/bootstrap Bootstrap}\n *\n * Note that ngScenario-based end-to-end tests cannot use this function to bootstrap manually.\n * They must use {@link ng.directive:ngApp ngApp}.\n *\n * Angular will detect if it has been loaded into the browser more than once and only allow the\n * first loaded script to be bootstrapped and will report a warning to the browser console for\n * each of the subsequent scripts. This prevents strange results in applications, where otherwise\n * multiple instances of Angular try to work on the DOM.\n *\n * <example name=\"multi-bootstrap\" module=\"multi-bootstrap\">\n * <file name=\"index.html\">\n * <script src=\"../../../angular.js\"></script>\n * <div ng-controller=\"BrokenTable\">\n *   <table>\n *   <tr>\n *     <th ng-repeat=\"heading in headings\">{{heading}}</th>\n *   </tr>\n *   <tr ng-repeat=\"filling in fillings\">\n *     <td ng-repeat=\"fill in filling\">{{fill}}</td>\n *   </tr>\n * </table>\n * </div>\n * </file>\n * <file name=\"controller.js\">\n * var app = angular.module('multi-bootstrap', [])\n *\n * .controller('BrokenTable', function($scope) {\n *     $scope.headings = ['One', 'Two', 'Three'];\n *     $scope.fillings = [[1, 2, 3], ['A', 'B', 'C'], [7, 8, 9]];\n * });\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n * it('should only insert one table cell for each item in $scope.fillings', function() {\n *  expect(element.all(by.css('td')).count())\n *      .toBe(9);\n * });\n * </file>\n * </example>\n *\n * @param {DOMElement} element DOM element which is the root of angular application.\n * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a run block.\n *     See: {@link angular.module modules}\n * @returns {auto.$injector} Returns the newly created injector for this app.\n */\nfunction bootstrap(element, modules) {\n  var doBootstrap = function() {\n    element = jqLite(element);\n\n    if (element.injector()) {\n      var tag = (element[0] === document) ? 'document' : startingTag(element);\n      //Encode angle brackets to prevent input from being sanitized to empty string #8683\n      throw ngMinErr(\n          'btstrpd',\n          \"App Already Bootstrapped with this Element '{0}'\",\n          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));\n    }\n\n    modules = modules || [];\n    modules.unshift(['$provide', function($provide) {\n      $provide.value('$rootElement', element);\n    }]);\n    modules.unshift('ng');\n    var injector = createInjector(modules);\n    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector', '$animate',\n       function(scope, element, compile, injector, animate) {\n        scope.$apply(function() {\n          element.data('$injector', injector);\n          compile(element)(scope);\n        });\n      }]\n    );\n    return injector;\n  };\n\n  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;\n\n  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {\n    return doBootstrap();\n  }\n\n  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');\n  angular.resumeBootstrap = function(extraModules) {\n    forEach(extraModules, function(module) {\n      modules.push(module);\n    });\n    doBootstrap();\n  };\n}\n\nvar SNAKE_CASE_REGEXP = /[A-Z]/g;\nfunction snake_case(name, separator) {\n  separator = separator || '_';\n  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n    return (pos ? separator : '') + letter.toLowerCase();\n  });\n}\n\nfunction bindJQuery() {\n  // bind to jQuery if present;\n  jQuery = window.jQuery;\n  // Use jQuery if it exists with proper functionality, otherwise default to us.\n  // Angular 1.2+ requires jQuery 1.7.1+ for on()/off() support.\n  if (jQuery && jQuery.fn.on) {\n    jqLite = jQuery;\n    extend(jQuery.fn, {\n      scope: JQLitePrototype.scope,\n      isolateScope: JQLitePrototype.isolateScope,\n      controller: JQLitePrototype.controller,\n      injector: JQLitePrototype.injector,\n      inheritedData: JQLitePrototype.inheritedData\n    });\n    // Method signature:\n    //     jqLitePatchJQueryRemove(name, dispatchThis, filterElems, getterIfNoArguments)\n    jqLitePatchJQueryRemove('remove', true, true, false);\n    jqLitePatchJQueryRemove('empty', false, false, false);\n    jqLitePatchJQueryRemove('html', false, false, true);\n  } else {\n    jqLite = JQLite;\n  }\n  angular.element = jqLite;\n}\n\n/**\n * throw error if the argument is falsy.\n */\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', \"Argument '{0}' is {1}\", (name || '?'), (reason || \"required\"));\n  }\n  return arg;\n}\n\nfunction assertArgFn(arg, name, acceptArrayAnnotation) {\n  if (acceptArrayAnnotation && isArray(arg)) {\n      arg = arg[arg.length - 1];\n  }\n\n  assertArg(isFunction(arg), name, 'not a function, got ' +\n      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));\n  return arg;\n}\n\n/**\n * throw error if the name given is hasOwnProperty\n * @param  {String} name    the name to test\n * @param  {String} context the context in which the name is used, such as module or directive\n */\nfunction assertNotHasOwnProperty(name, context) {\n  if (name === 'hasOwnProperty') {\n    throw ngMinErr('badname', \"hasOwnProperty is not a valid {0} name\", context);\n  }\n}\n\n/**\n * Return the value accessible from the object by path. Any undefined traversals are ignored\n * @param {Object} obj starting object\n * @param {String} path path to traverse\n * @param {boolean} [bindFnToScope=true]\n * @returns {Object} value as accessible by path\n */\n//TODO(misko): this function needs to be removed\nfunction getter(obj, path, bindFnToScope) {\n  if (!path) return obj;\n  var keys = path.split('.');\n  var key;\n  var lastInstance = obj;\n  var len = keys.length;\n\n  for (var i = 0; i < len; i++) {\n    key = keys[i];\n    if (obj) {\n      obj = (lastInstance = obj)[key];\n    }\n  }\n  if (!bindFnToScope && isFunction(obj)) {\n    return bind(lastInstance, obj);\n  }\n  return obj;\n}\n\n/**\n * Return the DOM siblings between the first and last node in the given array.\n * @param {Array} array like object\n * @returns {DOMElement} object containing the elements\n */\nfunction getBlockElements(nodes) {\n  var startNode = nodes[0],\n      endNode = nodes[nodes.length - 1];\n  if (startNode === endNode) {\n    return jqLite(startNode);\n  }\n\n  var element = startNode;\n  var elements = [element];\n\n  do {\n    element = element.nextSibling;\n    if (!element) break;\n    elements.push(element);\n  } while (element !== endNode);\n\n  return jqLite(elements);\n}\n\n/**\n * @ngdoc type\n * @name angular.Module\n * @module ng\n * @description\n *\n * Interface for configuring angular {@link angular.module modules}.\n */\n\nfunction setupModuleLoader(window) {\n\n  var $injectorMinErr = minErr('$injector');\n  var ngMinErr = minErr('ng');\n\n  function ensure(obj, name, factory) {\n    return obj[name] || (obj[name] = factory());\n  }\n\n  var angular = ensure(window, 'angular', Object);\n\n  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap\n  angular.$$minErr = angular.$$minErr || minErr;\n\n  return ensure(angular, 'module', function() {\n    /** @type {Object.<string, angular.Module>} */\n    var modules = {};\n\n    /**\n     * @ngdoc function\n     * @name angular.module\n     * @module ng\n     * @description\n     *\n     * The `angular.module` is a global place for creating, registering and retrieving Angular\n     * modules.\n     * All modules (angular core or 3rd party) that should be available to an application must be\n     * registered using this mechanism.\n     *\n     * When passed two or more arguments, a new module is created.  If passed only one argument, an\n     * existing module (the name passed as the first argument to `module`) is retrieved.\n     *\n     *\n     * # Module\n     *\n     * A module is a collection of services, directives, controllers, filters, and configuration information.\n     * `angular.module` is used to configure the {@link auto.$injector $injector}.\n     *\n     * ```js\n     * // Create a new module\n     * var myModule = angular.module('myModule', []);\n     *\n     * // register a new service\n     * myModule.value('appName', 'MyCoolApp');\n     *\n     * // configure existing services inside initialization blocks.\n     * myModule.config(['$locationProvider', function($locationProvider) {\n     *   // Configure existing providers\n     *   $locationProvider.hashPrefix('!');\n     * }]);\n     * ```\n     *\n     * Then you can create an injector and load your modules like this:\n     *\n     * ```js\n     * var injector = angular.injector(['ng', 'myModule'])\n     * ```\n     *\n     * However it's more likely that you'll just use\n     * {@link ng.directive:ngApp ngApp} or\n     * {@link angular.bootstrap} to simplify this process for you.\n     *\n     * @param {!string} name The name of the module to create or retrieve.\n     * @param {!Array.<string>=} requires If specified then new module is being created. If\n     *        unspecified then the module is being retrieved for further configuration.\n     * @param {Function=} configFn Optional configuration function for the module. Same as\n     *        {@link angular.Module#config Module#config()}.\n     * @returns {module} new module with the {@link angular.Module} api.\n     */\n    return function module(name, requires, configFn) {\n      var assertNotHasOwnProperty = function(name, context) {\n        if (name === 'hasOwnProperty') {\n          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n        }\n      };\n\n      assertNotHasOwnProperty(name, 'module');\n      if (requires && modules.hasOwnProperty(name)) {\n        modules[name] = null;\n      }\n      return ensure(modules, name, function() {\n        if (!requires) {\n          throw $injectorMinErr('nomod', \"Module '{0}' is not available! You either misspelled \" +\n             \"the module name or forgot to load it. If registering a module ensure that you \" +\n             \"specify the dependencies as the second argument.\", name);\n        }\n\n        /** @type {!Array.<Array.<*>>} */\n        var invokeQueue = [];\n\n        /** @type {!Array.<Function>} */\n        var runBlocks = [];\n\n        var config = invokeLater('$injector', 'invoke');\n\n        /** @type {angular.Module} */\n        var moduleInstance = {\n          // Private state\n          _invokeQueue: invokeQueue,\n          _runBlocks: runBlocks,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#requires\n           * @module ng\n           *\n           * @description\n           * Holds the list of modules which the injector will load before the current module is\n           * loaded.\n           */\n          requires: requires,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#name\n           * @module ng\n           *\n           * @description\n           * Name of the module.\n           */\n          name: name,\n\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#provider\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerType Construction function for creating new instance of the\n           *                                service.\n           * @description\n           * See {@link auto.$provide#provider $provide.provider()}.\n           */\n          provider: invokeLater('$provide', 'provider'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#factory\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerFunction Function for creating new instance of the service.\n           * @description\n           * See {@link auto.$provide#factory $provide.factory()}.\n           */\n          factory: invokeLater('$provide', 'factory'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#service\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} constructor A constructor function that will be instantiated.\n           * @description\n           * See {@link auto.$provide#service $provide.service()}.\n           */\n          service: invokeLater('$provide', 'service'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#value\n           * @module ng\n           * @param {string} name service name\n           * @param {*} object Service instance object.\n           * @description\n           * See {@link auto.$provide#value $provide.value()}.\n           */\n          value: invokeLater('$provide', 'value'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#constant\n           * @module ng\n           * @param {string} name constant name\n           * @param {*} object Constant value.\n           * @description\n           * Because the constant are fixed, they get applied before other provide methods.\n           * See {@link auto.$provide#constant $provide.constant()}.\n           */\n          constant: invokeLater('$provide', 'constant', 'unshift'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#animation\n           * @module ng\n           * @param {string} name animation name\n           * @param {Function} animationFactory Factory function for creating new instance of an\n           *                                    animation.\n           * @description\n           *\n           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.\n           *\n           *\n           * Defines an animation hook that can be later used with\n           * {@link ngAnimate.$animate $animate} service and directives that use this service.\n           *\n           * ```js\n           * module.animation('.animation-name', function($inject1, $inject2) {\n           *   return {\n           *     eventName : function(element, done) {\n           *       //code to run the animation\n           *       //once complete, then run done()\n           *       return function cancellationFunction(element) {\n           *         //code to cancel the animation\n           *       }\n           *     }\n           *   }\n           * })\n           * ```\n           *\n           * See {@link ngAnimate.$animateProvider#register $animateProvider.register()} and\n           * {@link ngAnimate ngAnimate module} for more information.\n           */\n          animation: invokeLater('$animateProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#filter\n           * @module ng\n           * @param {string} name Filter name.\n           * @param {Function} filterFactory Factory function for creating new instance of filter.\n           * @description\n           * See {@link ng.$filterProvider#register $filterProvider.register()}.\n           */\n          filter: invokeLater('$filterProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#controller\n           * @module ng\n           * @param {string|Object} name Controller name, or an object map of controllers where the\n           *    keys are the names and the values are the constructors.\n           * @param {Function} constructor Controller constructor function.\n           * @description\n           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.\n           */\n          controller: invokeLater('$controllerProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#directive\n           * @module ng\n           * @param {string|Object} name Directive name, or an object map of directives where the\n           *    keys are the names and the values are the factories.\n           * @param {Function} directiveFactory Factory function for creating new instance of\n           * directives.\n           * @description\n           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.\n           */\n          directive: invokeLater('$compileProvider', 'directive'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#config\n           * @module ng\n           * @param {Function} configFn Execute this function on module load. Useful for service\n           *    configuration.\n           * @description\n           * Use this method to register work which needs to be performed on module loading.\n           * For more about how to configure services, see\n           * {@link providers#providers_provider-recipe Provider Recipe}.\n           */\n          config: config,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#run\n           * @module ng\n           * @param {Function} initializationFn Execute this function after injector creation.\n           *    Useful for application initialization.\n           * @description\n           * Use this method to register work which should be performed when the injector is done\n           * loading all modules.\n           */\n          run: function(block) {\n            runBlocks.push(block);\n            return this;\n          }\n        };\n\n        if (configFn) {\n          config(configFn);\n        }\n\n        return  moduleInstance;\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @param {String=} insertMethod\n         * @returns {angular.Module}\n         */\n        function invokeLater(provider, method, insertMethod) {\n          return function() {\n            invokeQueue[insertMethod || 'push']([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n      });\n    };\n  });\n\n}\n\n/* global angularModule: true,\n  version: true,\n\n  $LocaleProvider,\n  $CompileProvider,\n\n    htmlAnchorDirective,\n    inputDirective,\n    inputDirective,\n    formDirective,\n    scriptDirective,\n    selectDirective,\n    styleDirective,\n    optionDirective,\n    ngBindDirective,\n    ngBindHtmlDirective,\n    ngBindTemplateDirective,\n    ngClassDirective,\n    ngClassEvenDirective,\n    ngClassOddDirective,\n    ngCspDirective,\n    ngCloakDirective,\n    ngControllerDirective,\n    ngFormDirective,\n    ngHideDirective,\n    ngIfDirective,\n    ngIncludeDirective,\n    ngIncludeFillContentDirective,\n    ngInitDirective,\n    ngNonBindableDirective,\n    ngPluralizeDirective,\n    ngRepeatDirective,\n    ngShowDirective,\n    ngStyleDirective,\n    ngSwitchDirective,\n    ngSwitchWhenDirective,\n    ngSwitchDefaultDirective,\n    ngOptionsDirective,\n    ngTranscludeDirective,\n    ngModelDirective,\n    ngListDirective,\n    ngChangeDirective,\n    requiredDirective,\n    requiredDirective,\n    ngValueDirective,\n    ngAttributeAliasDirectives,\n    ngEventDirectives,\n\n    $AnchorScrollProvider,\n    $AnimateProvider,\n    $BrowserProvider,\n    $CacheFactoryProvider,\n    $ControllerProvider,\n    $DocumentProvider,\n    $ExceptionHandlerProvider,\n    $FilterProvider,\n    $InterpolateProvider,\n    $IntervalProvider,\n    $HttpProvider,\n    $HttpBackendProvider,\n    $LocationProvider,\n    $LogProvider,\n    $ParseProvider,\n    $RootScopeProvider,\n    $QProvider,\n    $$SanitizeUriProvider,\n    $SceProvider,\n    $SceDelegateProvider,\n    $SnifferProvider,\n    $TemplateCacheProvider,\n    $TimeoutProvider,\n    $$RAFProvider,\n    $$AsyncCallbackProvider,\n    $WindowProvider\n*/\n\n\n/**\n * @ngdoc object\n * @name angular.version\n * @module ng\n * @description\n * An object that contains information about the current AngularJS version. This object has the\n * following properties:\n *\n * - `full` – `{string}` – Full version string, such as \"0.9.18\".\n * - `major` – `{number}` – Major version number, such as \"0\".\n * - `minor` – `{number}` – Minor version number, such as \"9\".\n * - `dot` – `{number}` – Dot version number, such as \"18\".\n * - `codeName` – `{string}` – Code name of the release, such as \"jiggling-armfat\".\n */\nvar version = {\n  full: '1.2.32',    // all of these placeholder strings will be replaced by grunt's\n  major: 1,    // package task\n  minor: 2,\n  dot: 32,\n  codeName: 'alternation-intention'\n};\n\n\nfunction publishExternalAPI(angular){\n  extend(angular, {\n    'bootstrap': bootstrap,\n    'copy': copy,\n    'extend': extend,\n    'equals': equals,\n    'element': jqLite,\n    'forEach': forEach,\n    'injector': createInjector,\n    'noop': noop,\n    'bind': bind,\n    'toJson': toJson,\n    'fromJson': fromJson,\n    'identity': identity,\n    'isUndefined': isUndefined,\n    'isDefined': isDefined,\n    'isString': isString,\n    'isFunction': isFunction,\n    'isObject': isObject,\n    'isNumber': isNumber,\n    'isElement': isElement,\n    'isArray': isArray,\n    'version': version,\n    'isDate': isDate,\n    'lowercase': lowercase,\n    'uppercase': uppercase,\n    'callbacks': {counter: 0},\n    '$$minErr': minErr,\n    '$$csp': csp\n  });\n\n  angularModule = setupModuleLoader(window);\n  try {\n    angularModule('ngLocale');\n  } catch (e) {\n    angularModule('ngLocale', []).provider('$locale', $LocaleProvider);\n  }\n\n  angularModule('ng', ['ngLocale'], ['$provide',\n    function ngModule($provide) {\n      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.\n      $provide.provider({\n        $$sanitizeUri: $$SanitizeUriProvider\n      });\n      $provide.provider('$compile', $CompileProvider).\n        directive({\n            a: htmlAnchorDirective,\n            input: inputDirective,\n            textarea: inputDirective,\n            form: formDirective,\n            script: scriptDirective,\n            select: selectDirective,\n            style: styleDirective,\n            option: optionDirective,\n            ngBind: ngBindDirective,\n            ngBindHtml: ngBindHtmlDirective,\n            ngBindTemplate: ngBindTemplateDirective,\n            ngClass: ngClassDirective,\n            ngClassEven: ngClassEvenDirective,\n            ngClassOdd: ngClassOddDirective,\n            ngCloak: ngCloakDirective,\n            ngController: ngControllerDirective,\n            ngForm: ngFormDirective,\n            ngHide: ngHideDirective,\n            ngIf: ngIfDirective,\n            ngInclude: ngIncludeDirective,\n            ngInit: ngInitDirective,\n            ngNonBindable: ngNonBindableDirective,\n            ngPluralize: ngPluralizeDirective,\n            ngRepeat: ngRepeatDirective,\n            ngShow: ngShowDirective,\n            ngStyle: ngStyleDirective,\n            ngSwitch: ngSwitchDirective,\n            ngSwitchWhen: ngSwitchWhenDirective,\n            ngSwitchDefault: ngSwitchDefaultDirective,\n            ngOptions: ngOptionsDirective,\n            ngTransclude: ngTranscludeDirective,\n            ngModel: ngModelDirective,\n            ngList: ngListDirective,\n            ngChange: ngChangeDirective,\n            required: requiredDirective,\n            ngRequired: requiredDirective,\n            ngValue: ngValueDirective\n        }).\n        directive({\n          ngInclude: ngIncludeFillContentDirective\n        }).\n        directive(ngAttributeAliasDirectives).\n        directive(ngEventDirectives);\n      $provide.provider({\n        $anchorScroll: $AnchorScrollProvider,\n        $animate: $AnimateProvider,\n        $browser: $BrowserProvider,\n        $cacheFactory: $CacheFactoryProvider,\n        $controller: $ControllerProvider,\n        $document: $DocumentProvider,\n        $exceptionHandler: $ExceptionHandlerProvider,\n        $filter: $FilterProvider,\n        $interpolate: $InterpolateProvider,\n        $interval: $IntervalProvider,\n        $http: $HttpProvider,\n        $httpBackend: $HttpBackendProvider,\n        $location: $LocationProvider,\n        $log: $LogProvider,\n        $parse: $ParseProvider,\n        $rootScope: $RootScopeProvider,\n        $q: $QProvider,\n        $sce: $SceProvider,\n        $sceDelegate: $SceDelegateProvider,\n        $sniffer: $SnifferProvider,\n        $templateCache: $TemplateCacheProvider,\n        $timeout: $TimeoutProvider,\n        $window: $WindowProvider,\n        $$rAF: $$RAFProvider,\n        $$asyncCallback : $$AsyncCallbackProvider\n      });\n    }\n  ]);\n}\n\n/* global JQLitePrototype: true,\n  addEventListenerFn: true,\n  removeEventListenerFn: true,\n  BOOLEAN_ATTR: true\n*/\n\n//////////////////////////////////\n//JQLite\n//////////////////////////////////\n\n/**\n * @ngdoc function\n * @name angular.element\n * @module ng\n * @kind function\n *\n * @description\n * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.\n *\n * If jQuery is available, `angular.element` is an alias for the\n * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`\n * delegates to Angular's built-in subset of jQuery, called \"jQuery lite\" or \"jqLite.\"\n *\n * <div class=\"alert alert-success\">jqLite is a tiny, API-compatible subset of jQuery that allows\n * Angular to manipulate the DOM in a cross-browser compatible way. **jqLite** implements only the most\n * commonly needed functionality with the goal of having a very small footprint.</div>\n *\n * To use jQuery, simply load it before `DOMContentLoaded` event fired.\n *\n * <div class=\"alert\">**Note:** all element references in Angular are always wrapped with jQuery or\n * jqLite; they are never raw DOM references.</div>\n *\n * ## Angular's jqLite\n * jqLite provides only the following jQuery methods:\n *\n * - [`addClass()`](http://api.jquery.com/addClass/)\n * - [`after()`](http://api.jquery.com/after/)\n * - [`append()`](http://api.jquery.com/append/)\n * - [`attr()`](http://api.jquery.com/attr/)\n * - [`bind()`](http://api.jquery.com/bind/) - Does not support namespaces, selectors or eventData\n * - [`children()`](http://api.jquery.com/children/) - Does not support selectors\n * - [`clone()`](http://api.jquery.com/clone/)\n * - [`contents()`](http://api.jquery.com/contents/)\n * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyles()`\n * - [`data()`](http://api.jquery.com/data/)\n * - [`empty()`](http://api.jquery.com/empty/)\n * - [`eq()`](http://api.jquery.com/eq/)\n * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name\n * - [`hasClass()`](http://api.jquery.com/hasClass/)\n * - [`html()`](http://api.jquery.com/html/)\n * - [`next()`](http://api.jquery.com/next/) - Does not support selectors\n * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData\n * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces or selectors\n * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors\n * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors\n * - [`prepend()`](http://api.jquery.com/prepend/)\n * - [`prop()`](http://api.jquery.com/prop/)\n * - [`ready()`](http://api.jquery.com/ready/)\n * - [`remove()`](http://api.jquery.com/remove/)\n * - [`removeAttr()`](http://api.jquery.com/removeAttr/)\n * - [`removeClass()`](http://api.jquery.com/removeClass/)\n * - [`removeData()`](http://api.jquery.com/removeData/)\n * - [`replaceWith()`](http://api.jquery.com/replaceWith/)\n * - [`text()`](http://api.jquery.com/text/)\n * - [`toggleClass()`](http://api.jquery.com/toggleClass/)\n * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers.\n * - [`unbind()`](http://api.jquery.com/unbind/) - Does not support namespaces\n * - [`val()`](http://api.jquery.com/val/)\n * - [`wrap()`](http://api.jquery.com/wrap/)\n *\n * ## jQuery/jqLite Extras\n * Angular also provides the following additional methods and events to both jQuery and jqLite:\n *\n * ### Events\n * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event\n *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM\n *    element before it is removed.\n *\n * ### Methods\n * - `controller(name)` - retrieves the controller of the current element or its parent. By default\n *   retrieves controller associated with the `ngController` directive. If `name` is provided as\n *   camelCase directive name, then the controller for this directive will be retrieved (e.g.\n *   `'ngModel'`).\n * - `injector()` - retrieves the injector of the current element or its parent.\n * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current\n *   element or its parent.\n * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the\n *   current element. This getter should be used only on elements that contain a directive which starts a new isolate\n *   scope. Calling `scope()` on this element always returns the original non-isolate scope.\n * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top\n *   parent element is reached.\n *\n * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.\n * @returns {Object} jQuery object.\n */\n\nJQLite.expando = 'ng339';\n\nvar jqCache = JQLite.cache = {},\n    jqId = 1,\n    addEventListenerFn = (window.document.addEventListener\n      ? function(element, type, fn) {element.addEventListener(type, fn, false);}\n      : function(element, type, fn) {element.attachEvent('on' + type, fn);}),\n    removeEventListenerFn = (window.document.removeEventListener\n      ? function(element, type, fn) {element.removeEventListener(type, fn, false); }\n      : function(element, type, fn) {element.detachEvent('on' + type, fn); });\n\n/*\n * !!! This is an undocumented \"private\" function !!!\n */\nvar jqData = JQLite._data = function(node) {\n  //jQuery always returns an object on cache miss\n  return this.cache[node[this.expando]] || {};\n};\n\nfunction jqNextId() { return ++jqId; }\n\n\nvar SPECIAL_CHARS_REGEXP = /([\\:\\-\\_]+(.))/g;\nvar MOZ_HACK_REGEXP = /^moz([A-Z])/;\nvar jqLiteMinErr = minErr('jqLite');\n\n/**\n * Converts snake_case to camelCase.\n * Also there is special case for Moz prefix starting with upper case letter.\n * @param name Name to normalize\n */\nfunction camelCase(name) {\n  return name.\n    replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    }).\n    replace(MOZ_HACK_REGEXP, 'Moz$1');\n}\n\n/////////////////////////////////////////////\n// jQuery mutation patch\n//\n// In conjunction with bindJQuery intercepts all jQuery's DOM destruction apis and fires a\n// $destroy event on all DOM nodes being removed.\n//\n/////////////////////////////////////////////\n\nfunction jqLitePatchJQueryRemove(name, dispatchThis, filterElems, getterIfNoArguments) {\n  var originalJqFn = jQuery.fn[name];\n  originalJqFn = originalJqFn.$original || originalJqFn;\n  removePatch.$original = originalJqFn;\n  jQuery.fn[name] = removePatch;\n\n  function removePatch(param) {\n    // jshint -W040\n    var list = filterElems && param ? [this.filter(param)] : [this],\n        fireEvent = dispatchThis,\n        set, setIndex, setLength,\n        element, childIndex, childLength, children;\n\n    if (!getterIfNoArguments || param != null) {\n      while(list.length) {\n        set = list.shift();\n        for(setIndex = 0, setLength = set.length; setIndex < setLength; setIndex++) {\n          element = jqLite(set[setIndex]);\n          if (fireEvent) {\n            element.triggerHandler('$destroy');\n          } else {\n            fireEvent = !fireEvent;\n          }\n          for(childIndex = 0, childLength = (children = element.children()).length;\n              childIndex < childLength;\n              childIndex++) {\n            list.push(jQuery(children[childIndex]));\n          }\n        }\n      }\n    }\n    return originalJqFn.apply(this, arguments);\n  }\n}\n\nvar SINGLE_TAG_REGEXP = /^<(\\w+)\\s*\\/?>(?:<\\/\\1>|)$/;\nvar HTML_REGEXP = /<|&#?\\w+;/;\nvar TAG_NAME_REGEXP = /<([\\w:]+)/;\nvar XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:]+)[^>]*)\\/>/gi;\n\nvar wrapMap = {\n  'option': [1, '<select multiple=\"multiple\">', '</select>'],\n\n  'thead': [1, '<table>', '</table>'],\n  'col': [2, '<table><colgroup>', '</colgroup></table>'],\n  'tr': [2, '<table><tbody>', '</tbody></table>'],\n  'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],\n  '_default': [0, \"\", \"\"]\n};\n\nwrapMap.optgroup = wrapMap.option;\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\nfunction jqLiteIsTextNode(html) {\n  return !HTML_REGEXP.test(html);\n}\n\nfunction jqLiteBuildFragment(html, context) {\n  var elem, tmp, tag, wrap,\n      fragment = context.createDocumentFragment(),\n      nodes = [], i, j, jj;\n\n  if (jqLiteIsTextNode(html)) {\n    // Convert non-html into a text node\n    nodes.push(context.createTextNode(html));\n  } else {\n    tmp = fragment.appendChild(context.createElement('div'));\n    // Convert html into DOM nodes\n    tag = (TAG_NAME_REGEXP.exec(html) || [\"\", \"\"])[1].toLowerCase();\n    wrap = wrapMap[tag] || wrapMap._default;\n    tmp.innerHTML = '<div>&#160;</div>' +\n      wrap[1] + html.replace(XHTML_TAG_REGEXP, \"<$1></$2>\") + wrap[2];\n    tmp.removeChild(tmp.firstChild);\n\n    // Descend through wrappers to the right content\n    i = wrap[0];\n    while (i--) {\n      tmp = tmp.lastChild;\n    }\n\n    for (j=0, jj=tmp.childNodes.length; j<jj; ++j) nodes.push(tmp.childNodes[j]);\n\n    tmp = fragment.firstChild;\n    tmp.textContent = \"\";\n  }\n\n  // Remove wrapper from fragment\n  fragment.textContent = \"\";\n  fragment.innerHTML = \"\"; // Clear inner HTML\n  return nodes;\n}\n\nfunction jqLiteParseHTML(html, context) {\n  context = context || document;\n  var parsed;\n\n  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {\n    return [context.createElement(parsed[1])];\n  }\n\n  return jqLiteBuildFragment(html, context);\n}\n\n/////////////////////////////////////////////\nfunction JQLite(element) {\n  if (element instanceof JQLite) {\n    return element;\n  }\n  if (isString(element)) {\n    element = trim(element);\n  }\n  if (!(this instanceof JQLite)) {\n    if (isString(element) && element.charAt(0) != '<') {\n      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');\n    }\n    return new JQLite(element);\n  }\n\n  if (isString(element)) {\n    jqLiteAddNodes(this, jqLiteParseHTML(element));\n    var fragment = jqLite(document.createDocumentFragment());\n    fragment.append(this);\n  } else {\n    jqLiteAddNodes(this, element);\n  }\n}\n\nfunction jqLiteClone(element) {\n  return element.cloneNode(true);\n}\n\nfunction jqLiteDealoc(element){\n  jqLiteRemoveData(element);\n  for ( var i = 0, children = element.childNodes || []; i < children.length; i++) {\n    jqLiteDealoc(children[i]);\n  }\n}\n\nfunction jqLiteOff(element, type, fn, unsupported) {\n  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');\n\n  var events = jqLiteExpandoStore(element, 'events'),\n      handle = jqLiteExpandoStore(element, 'handle');\n\n  if (!handle) return; //no listeners registered\n\n  if (isUndefined(type)) {\n    forEach(events, function(eventHandler, type) {\n      removeEventListenerFn(element, type, eventHandler);\n      delete events[type];\n    });\n  } else {\n    forEach(type.split(' '), function(type) {\n      if (isUndefined(fn)) {\n        removeEventListenerFn(element, type, events[type]);\n        delete events[type];\n      } else {\n        arrayRemove(events[type] || [], fn);\n      }\n    });\n  }\n}\n\nfunction jqLiteRemoveData(element, name) {\n  var expandoId = element.ng339,\n      expandoStore = jqCache[expandoId];\n\n  if (expandoStore) {\n    if (name) {\n      delete jqCache[expandoId].data[name];\n      return;\n    }\n\n    if (expandoStore.handle) {\n      expandoStore.events.$destroy && expandoStore.handle({}, '$destroy');\n      jqLiteOff(element);\n    }\n    delete jqCache[expandoId];\n    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it\n  }\n}\n\nfunction jqLiteExpandoStore(element, key, value) {\n  var expandoId = element.ng339,\n      expandoStore = jqCache[expandoId || -1];\n\n  if (isDefined(value)) {\n    if (!expandoStore) {\n      element.ng339 = expandoId = jqNextId();\n      expandoStore = jqCache[expandoId] = {};\n    }\n    expandoStore[key] = value;\n  } else {\n    return expandoStore && expandoStore[key];\n  }\n}\n\nfunction jqLiteData(element, key, value) {\n  var data = jqLiteExpandoStore(element, 'data'),\n      isSetter = isDefined(value),\n      keyDefined = !isSetter && isDefined(key),\n      isSimpleGetter = keyDefined && !isObject(key);\n\n  if (!data && !isSimpleGetter) {\n    jqLiteExpandoStore(element, 'data', data = {});\n  }\n\n  if (isSetter) {\n    data[key] = value;\n  } else {\n    if (keyDefined) {\n      if (isSimpleGetter) {\n        // don't create data in this case.\n        return data && data[key];\n      } else {\n        extend(data, key);\n      }\n    } else {\n      return data;\n    }\n  }\n}\n\nfunction jqLiteHasClass(element, selector) {\n  if (!element.getAttribute) return false;\n  return ((\" \" + (element.getAttribute('class') || '') + \" \").replace(/[\\n\\t]/g, \" \").\n      indexOf( \" \" + selector + \" \" ) > -1);\n}\n\nfunction jqLiteRemoveClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    forEach(cssClasses.split(' '), function(cssClass) {\n      element.setAttribute('class', trim(\n          (\" \" + (element.getAttribute('class') || '') + \" \")\n          .replace(/[\\n\\t]/g, \" \")\n          .replace(\" \" + trim(cssClass) + \" \", \" \"))\n      );\n    });\n  }\n}\n\nfunction jqLiteAddClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, \" \");\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      if (existingClasses.indexOf(' ' + cssClass + ' ') === -1) {\n        existingClasses += cssClass + ' ';\n      }\n    });\n\n    element.setAttribute('class', trim(existingClasses));\n  }\n}\n\nfunction jqLiteAddNodes(root, elements) {\n  if (elements) {\n    elements = (!elements.nodeName && isDefined(elements.length) && !isWindow(elements))\n      ? elements\n      : [ elements ];\n    for(var i=0; i < elements.length; i++) {\n      root.push(elements[i]);\n    }\n  }\n}\n\nfunction jqLiteController(element, name) {\n  return jqLiteInheritedData(element, '$' + (name || 'ngController' ) + 'Controller');\n}\n\nfunction jqLiteInheritedData(element, name, value) {\n  // if element is the document object work with the html element instead\n  // this makes $(document).scope() possible\n  if(element.nodeType == 9) {\n    element = element.documentElement;\n  }\n  var names = isArray(name) ? name : [name];\n\n  while (element) {\n    for (var i = 0, ii = names.length; i < ii; i++) {\n      if ((value = jqLite.data(element, names[i])) !== undefined) return value;\n    }\n\n    // If dealing with a document fragment node with a host element, and no parent, use the host\n    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM\n    // to lookup parent controllers.\n    element = element.parentNode || (element.nodeType === 11 && element.host);\n  }\n}\n\nfunction jqLiteEmpty(element) {\n  for (var i = 0, childNodes = element.childNodes; i < childNodes.length; i++) {\n    jqLiteDealoc(childNodes[i]);\n  }\n  while (element.firstChild) {\n    element.removeChild(element.firstChild);\n  }\n}\n\n//////////////////////////////////////////\n// Functions which are declared directly.\n//////////////////////////////////////////\nvar JQLitePrototype = JQLite.prototype = {\n  ready: function(fn) {\n    var fired = false;\n\n    function trigger() {\n      if (fired) return;\n      fired = true;\n      fn();\n    }\n\n    // check if document already is loaded\n    if (document.readyState === 'complete'){\n      setTimeout(trigger);\n    } else {\n      this.on('DOMContentLoaded', trigger); // works for modern browsers and IE9\n      // we can not use jqLite since we are not done loading and jQuery could be loaded later.\n      // jshint -W064\n      JQLite(window).on('load', trigger); // fallback to window.onload for others\n      // jshint +W064\n    }\n  },\n  toString: function() {\n    var value = [];\n    forEach(this, function(e){ value.push('' + e);});\n    return '[' + value.join(', ') + ']';\n  },\n\n  eq: function(index) {\n      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);\n  },\n\n  length: 0,\n  push: push,\n  sort: [].sort,\n  splice: [].splice\n};\n\n//////////////////////////////////////////\n// Functions iterating getter/setters.\n// these functions return self on setter and\n// value on get.\n//////////////////////////////////////////\nvar BOOLEAN_ATTR = {};\nforEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {\n  BOOLEAN_ATTR[lowercase(value)] = value;\n});\nvar BOOLEAN_ELEMENTS = {};\nforEach('input,select,option,textarea,button,form,details'.split(','), function(value) {\n  BOOLEAN_ELEMENTS[uppercase(value)] = true;\n});\n\nfunction getBooleanAttrName(element, name) {\n  // check dom last since we will most likely fail on name\n  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];\n\n  // booleanAttr is here twice to minimize DOM access\n  return booleanAttr && BOOLEAN_ELEMENTS[element.nodeName] && booleanAttr;\n}\n\nforEach({\n  data: jqLiteData,\n  removeData: jqLiteRemoveData\n}, function(fn, name) {\n  JQLite[name] = fn;\n});\n\nforEach({\n  data: jqLiteData,\n  inheritedData: jqLiteInheritedData,\n\n  scope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);\n  },\n\n  isolateScope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');\n  },\n\n  controller: jqLiteController,\n\n  injector: function(element) {\n    return jqLiteInheritedData(element, '$injector');\n  },\n\n  removeAttr: function(element,name) {\n    element.removeAttribute(name);\n  },\n\n  hasClass: jqLiteHasClass,\n\n  css: function(element, name, value) {\n    name = camelCase(name);\n\n    if (isDefined(value)) {\n      element.style[name] = value;\n    } else {\n      var val;\n\n      if (msie <= 8) {\n        // this is some IE specific weirdness that jQuery 1.6.4 does not sure why\n        val = element.currentStyle && element.currentStyle[name];\n        if (val === '') val = 'auto';\n      }\n\n      val = val || element.style[name];\n\n      if (msie <= 8) {\n        // jquery weirdness :-/\n        val = (val === '') ? undefined : val;\n      }\n\n      return  val;\n    }\n  },\n\n  attr: function(element, name, value){\n    var lowercasedName = lowercase(name);\n    if (BOOLEAN_ATTR[lowercasedName]) {\n      if (isDefined(value)) {\n        if (!!value) {\n          element[name] = true;\n          element.setAttribute(name, lowercasedName);\n        } else {\n          element[name] = false;\n          element.removeAttribute(lowercasedName);\n        }\n      } else {\n        return (element[name] ||\n                 (element.attributes.getNamedItem(name)|| noop).specified)\n               ? lowercasedName\n               : undefined;\n      }\n    } else if (isDefined(value)) {\n      element.setAttribute(name, value);\n    } else if (element.getAttribute) {\n      // the extra argument \"2\" is to get the right thing for a.href in IE, see jQuery code\n      // some elements (e.g. Document) don't have get attribute, so return undefined\n      var ret = element.getAttribute(name, 2);\n      // normalize non-existing attributes to undefined (as jQuery)\n      return ret === null ? undefined : ret;\n    }\n  },\n\n  prop: function(element, name, value) {\n    if (isDefined(value)) {\n      element[name] = value;\n    } else {\n      return element[name];\n    }\n  },\n\n  text: (function() {\n    var NODE_TYPE_TEXT_PROPERTY = [];\n    if (msie < 9) {\n      NODE_TYPE_TEXT_PROPERTY[1] = 'innerText';    /** Element **/\n      NODE_TYPE_TEXT_PROPERTY[3] = 'nodeValue';    /** Text **/\n    } else {\n      NODE_TYPE_TEXT_PROPERTY[1] =                 /** Element **/\n      NODE_TYPE_TEXT_PROPERTY[3] = 'textContent';  /** Text **/\n    }\n    getText.$dv = '';\n    return getText;\n\n    function getText(element, value) {\n      var textProp = NODE_TYPE_TEXT_PROPERTY[element.nodeType];\n      if (isUndefined(value)) {\n        return textProp ? element[textProp] : '';\n      }\n      element[textProp] = value;\n    }\n  })(),\n\n  val: function(element, value) {\n    if (isUndefined(value)) {\n      if (nodeName_(element) === 'SELECT' && element.multiple) {\n        var result = [];\n        forEach(element.options, function (option) {\n          if (option.selected) {\n            result.push(option.value || option.text);\n          }\n        });\n        return result.length === 0 ? null : result;\n      }\n      return element.value;\n    }\n    element.value = value;\n  },\n\n  html: function(element, value) {\n    if (isUndefined(value)) {\n      return element.innerHTML;\n    }\n    for (var i = 0, childNodes = element.childNodes; i < childNodes.length; i++) {\n      jqLiteDealoc(childNodes[i]);\n    }\n    element.innerHTML = value;\n  },\n\n  empty: jqLiteEmpty\n}, function(fn, name){\n  /**\n   * Properties: writes return selection, reads return first value\n   */\n  JQLite.prototype[name] = function(arg1, arg2) {\n    var i, key;\n    var nodeCount = this.length;\n\n    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it\n    // in a way that survives minification.\n    // jqLiteEmpty takes no arguments but is a setter.\n    if (fn !== jqLiteEmpty &&\n        (((fn.length == 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2) === undefined)) {\n      if (isObject(arg1)) {\n\n        // we are a write, but the object properties are the key/values\n        for (i = 0; i < nodeCount; i++) {\n          if (fn === jqLiteData) {\n            // data() takes the whole object in jQuery\n            fn(this[i], arg1);\n          } else {\n            for (key in arg1) {\n              fn(this[i], key, arg1[key]);\n            }\n          }\n        }\n        // return self for chaining\n        return this;\n      } else {\n        // we are a read, so read the first child.\n        // TODO: do we still need this?\n        var value = fn.$dv;\n        // Only if we have $dv do we iterate over all, otherwise it is just the first element.\n        var jj = (value === undefined) ? Math.min(nodeCount, 1) : nodeCount;\n        for (var j = 0; j < jj; j++) {\n          var nodeValue = fn(this[j], arg1, arg2);\n          value = value ? value + nodeValue : nodeValue;\n        }\n        return value;\n      }\n    } else {\n      // we are a write, so apply to all children\n      for (i = 0; i < nodeCount; i++) {\n        fn(this[i], arg1, arg2);\n      }\n      // return self for chaining\n      return this;\n    }\n  };\n});\n\nfunction createEventHandler(element, events) {\n  var eventHandler = function (event, type) {\n    if (!event.preventDefault) {\n      event.preventDefault = function() {\n        event.returnValue = false; //ie\n      };\n    }\n\n    if (!event.stopPropagation) {\n      event.stopPropagation = function() {\n        event.cancelBubble = true; //ie\n      };\n    }\n\n    if (!event.target) {\n      event.target = event.srcElement || document;\n    }\n\n    if (isUndefined(event.defaultPrevented)) {\n      var prevent = event.preventDefault;\n      event.preventDefault = function() {\n        event.defaultPrevented = true;\n        prevent.call(event);\n      };\n      event.defaultPrevented = false;\n    }\n\n    event.isDefaultPrevented = function() {\n      return event.defaultPrevented || event.returnValue === false;\n    };\n\n    // Copy event handlers in case event handlers array is modified during execution.\n    var eventHandlersCopy = shallowCopy(events[type || event.type] || []);\n\n    forEach(eventHandlersCopy, function(fn) {\n      fn.call(element, event);\n    });\n\n    // Remove monkey-patched methods (IE),\n    // as they would cause memory leaks in IE8.\n    if (msie <= 8) {\n      // IE7/8 does not allow to delete property on native object\n      event.preventDefault = null;\n      event.stopPropagation = null;\n      event.isDefaultPrevented = null;\n    } else {\n      // It shouldn't affect normal browsers (native methods are defined on prototype).\n      delete event.preventDefault;\n      delete event.stopPropagation;\n      delete event.isDefaultPrevented;\n    }\n  };\n  eventHandler.elem = element;\n  return eventHandler;\n}\n\n//////////////////////////////////////////\n// Functions iterating traversal.\n// These functions chain results into a single\n// selector.\n//////////////////////////////////////////\nforEach({\n  removeData: jqLiteRemoveData,\n\n  dealoc: jqLiteDealoc,\n\n  on: function onFn(element, type, fn, unsupported){\n    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');\n\n    var events = jqLiteExpandoStore(element, 'events'),\n        handle = jqLiteExpandoStore(element, 'handle');\n\n    if (!events) jqLiteExpandoStore(element, 'events', events = {});\n    if (!handle) jqLiteExpandoStore(element, 'handle', handle = createEventHandler(element, events));\n\n    forEach(type.split(' '), function(type){\n      var eventFns = events[type];\n\n      if (!eventFns) {\n        if (type == 'mouseenter' || type == 'mouseleave') {\n          var contains = document.body.contains || document.body.compareDocumentPosition ?\n          function( a, b ) {\n            // jshint bitwise: false\n            var adown = a.nodeType === 9 ? a.documentElement : a,\n            bup = b && b.parentNode;\n            return a === bup || !!( bup && bup.nodeType === 1 && (\n              adown.contains ?\n              adown.contains( bup ) :\n              a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16\n              ));\n            } :\n            function( a, b ) {\n              if ( b ) {\n                while ( (b = b.parentNode) ) {\n                  if ( b === a ) {\n                    return true;\n                  }\n                }\n              }\n              return false;\n            };\n\n          events[type] = [];\n\n          // Refer to jQuery's implementation of mouseenter & mouseleave\n          // Read about mouseenter and mouseleave:\n          // http://www.quirksmode.org/js/events_mouse.html#link8\n          var eventmap = { mouseleave : \"mouseout\", mouseenter : \"mouseover\"};\n\n          onFn(element, eventmap[type], function(event) {\n            var target = this, related = event.relatedTarget;\n            // For mousenter/leave call the handler if related is outside the target.\n            // NB: No relatedTarget if the mouse left/entered the browser window\n            if ( !related || (related !== target && !contains(target, related)) ){\n              handle(event, type);\n            }\n          });\n\n        } else {\n          addEventListenerFn(element, type, handle);\n          events[type] = [];\n        }\n        eventFns = events[type];\n      }\n      eventFns.push(fn);\n    });\n  },\n\n  off: jqLiteOff,\n\n  one: function(element, type, fn) {\n    element = jqLite(element);\n\n    //add the listener twice so that when it is called\n    //you can remove the original function and still be\n    //able to call element.off(ev, fn) normally\n    element.on(type, function onFn() {\n      element.off(type, fn);\n      element.off(type, onFn);\n    });\n    element.on(type, fn);\n  },\n\n  replaceWith: function(element, replaceNode) {\n    var index, parent = element.parentNode;\n    jqLiteDealoc(element);\n    forEach(new JQLite(replaceNode), function(node){\n      if (index) {\n        parent.insertBefore(node, index.nextSibling);\n      } else {\n        parent.replaceChild(node, element);\n      }\n      index = node;\n    });\n  },\n\n  children: function(element) {\n    var children = [];\n    forEach(element.childNodes, function(element){\n      if (element.nodeType === 1)\n        children.push(element);\n    });\n    return children;\n  },\n\n  contents: function(element) {\n    return element.contentDocument || element.childNodes || [];\n  },\n\n  append: function(element, node) {\n    forEach(new JQLite(node), function(child){\n      if (element.nodeType === 1 || element.nodeType === 11) {\n        element.appendChild(child);\n      }\n    });\n  },\n\n  prepend: function(element, node) {\n    if (element.nodeType === 1) {\n      var index = element.firstChild;\n      forEach(new JQLite(node), function(child){\n        element.insertBefore(child, index);\n      });\n    }\n  },\n\n  wrap: function(element, wrapNode) {\n    wrapNode = jqLite(wrapNode)[0];\n    var parent = element.parentNode;\n    if (parent) {\n      parent.replaceChild(wrapNode, element);\n    }\n    wrapNode.appendChild(element);\n  },\n\n  remove: function(element) {\n    jqLiteDealoc(element);\n    var parent = element.parentNode;\n    if (parent) parent.removeChild(element);\n  },\n\n  after: function(element, newElement) {\n    var index = element, parent = element.parentNode;\n    forEach(new JQLite(newElement), function(node){\n      parent.insertBefore(node, index.nextSibling);\n      index = node;\n    });\n  },\n\n  addClass: jqLiteAddClass,\n  removeClass: jqLiteRemoveClass,\n\n  toggleClass: function(element, selector, condition) {\n    if (selector) {\n      forEach(selector.split(' '), function(className){\n        var classCondition = condition;\n        if (isUndefined(classCondition)) {\n          classCondition = !jqLiteHasClass(element, className);\n        }\n        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);\n      });\n    }\n  },\n\n  parent: function(element) {\n    var parent = element.parentNode;\n    return parent && parent.nodeType !== 11 ? parent : null;\n  },\n\n  next: function(element) {\n    if (element.nextElementSibling) {\n      return element.nextElementSibling;\n    }\n\n    // IE8 doesn't have nextElementSibling\n    var elm = element.nextSibling;\n    while (elm != null && elm.nodeType !== 1) {\n      elm = elm.nextSibling;\n    }\n    return elm;\n  },\n\n  find: function(element, selector) {\n    if (element.getElementsByTagName) {\n      return element.getElementsByTagName(selector);\n    } else {\n      return [];\n    }\n  },\n\n  clone: jqLiteClone,\n\n  triggerHandler: function(element, event, extraParameters) {\n\n    var dummyEvent, eventFnsCopy, handlerArgs;\n    var eventName = event.type || event;\n    var eventFns = (jqLiteExpandoStore(element, 'events') || {})[eventName];\n\n    if (eventFns) {\n\n      // Create a dummy event to pass to the handlers\n      dummyEvent = {\n        preventDefault: function() { this.defaultPrevented = true; },\n        isDefaultPrevented: function() { return this.defaultPrevented === true; },\n        stopPropagation: noop,\n        type: eventName,\n        target: element\n      };\n\n      // If a custom event was provided then extend our dummy event with it\n      if (event.type) {\n        dummyEvent = extend(dummyEvent, event);\n      }\n\n      // Copy event handlers in case event handlers array is modified during execution.\n      eventFnsCopy = shallowCopy(eventFns);\n      handlerArgs = extraParameters ? [dummyEvent].concat(extraParameters) : [dummyEvent];\n\n      forEach(eventFnsCopy, function(fn) {\n        fn.apply(element, handlerArgs);\n      });\n\n    }\n  }\n}, function(fn, name){\n  /**\n   * chaining functions\n   */\n  JQLite.prototype[name] = function(arg1, arg2, arg3) {\n    var value;\n    for(var i=0; i < this.length; i++) {\n      if (isUndefined(value)) {\n        value = fn(this[i], arg1, arg2, arg3);\n        if (isDefined(value)) {\n          // any function which returns a value needs to be wrapped\n          value = jqLite(value);\n        }\n      } else {\n        jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));\n      }\n    }\n    return isDefined(value) ? value : this;\n  };\n\n  // bind legacy bind/unbind to on/off\n  JQLite.prototype.bind = JQLite.prototype.on;\n  JQLite.prototype.unbind = JQLite.prototype.off;\n});\n\n/**\n * Computes a hash of an 'obj'.\n * Hash of a:\n *  string is string\n *  number is number as string\n *  object is either result of calling $$hashKey function on the object or uniquely generated id,\n *         that is also assigned to the $$hashKey property of the object.\n *\n * @param obj\n * @returns {string} hash string such that the same input will have the same hash string.\n *         The resulting string key is in 'type:hashKey' format.\n */\nfunction hashKey(obj, nextUidFn) {\n  var objType = typeof obj,\n      key;\n\n  if (objType == 'function' || (objType == 'object' && obj !== null)) {\n    if (typeof (key = obj.$$hashKey) == 'function') {\n      // must invoke on object to keep the right this\n      key = obj.$$hashKey();\n    } else if (key === undefined) {\n      key = obj.$$hashKey = (nextUidFn || nextUid)();\n    }\n  } else {\n    key = obj;\n  }\n\n  return objType + ':' + key;\n}\n\n/**\n * HashMap which can use objects as keys\n */\nfunction HashMap(array, isolatedUid) {\n  if (isolatedUid) {\n    var uid = 0;\n    this.nextUid = function() {\n      return ++uid;\n    };\n  }\n  forEach(array, this.put, this);\n}\nHashMap.prototype = {\n  /**\n   * Store key value pair\n   * @param key key to store can be any type\n   * @param value value to store can be any type\n   */\n  put: function(key, value) {\n    this[hashKey(key, this.nextUid)] = value;\n  },\n\n  /**\n   * @param key\n   * @returns {Object} the value for the key\n   */\n  get: function(key) {\n    return this[hashKey(key, this.nextUid)];\n  },\n\n  /**\n   * Remove the key/value pair\n   * @param key\n   */\n  remove: function(key) {\n    var value = this[key = hashKey(key, this.nextUid)];\n    delete this[key];\n    return value;\n  }\n};\n\n/**\n * @ngdoc function\n * @module ng\n * @name angular.injector\n * @kind function\n *\n * @description\n * Creates an injector object that can be used for retrieving services as well as for\n * dependency injection (see {@link guide/di dependency injection}).\n *\n\n * @param {Array.<string|Function>} modules A list of module functions or their aliases. See\n *        {@link angular.module}. The `ng` module must be explicitly added.\n * @returns {injector} Injector object. See {@link auto.$injector $injector}.\n *\n * @example\n * Typical usage\n * ```js\n *   // create an injector\n *   var $injector = angular.injector(['ng']);\n *\n *   // use the injector to kick off your application\n *   // use the type inference to auto inject arguments, or use implicit injection\n *   $injector.invoke(function($rootScope, $compile, $document){\n *     $compile($document)($rootScope);\n *     $rootScope.$digest();\n *   });\n * ```\n *\n * Sometimes you want to get access to the injector of a currently running Angular app\n * from outside Angular. Perhaps, you want to inject and compile some markup after the\n * application has been bootstrapped. You can do this using the extra `injector()` added\n * to JQuery/jqLite elements. See {@link angular.element}.\n *\n * *This is fairly rare but could be the case if a third party library is injecting the\n * markup.*\n *\n * In the following example a new block of HTML containing a `ng-controller`\n * directive is added to the end of the document body by JQuery. We then compile and link\n * it into the current AngularJS scope.\n *\n * ```js\n * var $div = $('<div ng-controller=\"MyCtrl\">{{content.label}}</div>');\n * $(document.body).append($div);\n *\n * angular.element(document).injector().invoke(function($compile) {\n *   var scope = angular.element($div).scope();\n *   $compile($div)(scope);\n * });\n * ```\n */\n\n\n/**\n * @ngdoc module\n * @name auto\n * @description\n *\n * Implicit module which gets automatically added to each {@link auto.$injector $injector}.\n */\n\nvar FN_ARGS = /^function\\s*[^\\(]*\\(\\s*([^\\)]*)\\)/m;\nvar FN_ARG_SPLIT = /,/;\nvar FN_ARG = /^\\s*(_?)(\\S+?)\\1\\s*$/;\nvar STRIP_COMMENTS = /((\\/\\/.*$)|(\\/\\*[\\s\\S]*?\\*\\/))/mg;\nvar $injectorMinErr = minErr('$injector');\nfunction annotate(fn) {\n  var $inject,\n      fnText,\n      argDecl,\n      last;\n\n  if (typeof fn === 'function') {\n    if (!($inject = fn.$inject)) {\n      $inject = [];\n      if (fn.length) {\n        fnText = fn.toString().replace(STRIP_COMMENTS, '');\n        argDecl = fnText.match(FN_ARGS);\n        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg){\n          arg.replace(FN_ARG, function(all, underscore, name){\n            $inject.push(name);\n          });\n        });\n      }\n      fn.$inject = $inject;\n    }\n  } else if (isArray(fn)) {\n    last = fn.length - 1;\n    assertArgFn(fn[last], 'fn');\n    $inject = fn.slice(0, last);\n  } else {\n    assertArgFn(fn, 'fn', true);\n  }\n  return $inject;\n}\n\n///////////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $injector\n *\n * @description\n *\n * `$injector` is used to retrieve object instances as defined by\n * {@link auto.$provide provider}, instantiate types, invoke methods,\n * and load modules.\n *\n * The following always holds true:\n *\n * ```js\n *   var $injector = angular.injector();\n *   expect($injector.get('$injector')).toBe($injector);\n *   expect($injector.invoke(function($injector){\n *     return $injector;\n *   })).toBe($injector);\n * ```\n *\n * # Injection Function Annotation\n *\n * JavaScript does not have annotations, and annotations are needed for dependency injection. The\n * following are all valid ways of annotating function with injection arguments and are equivalent.\n *\n * ```js\n *   // inferred (only works if code not minified/obfuscated)\n *   $injector.invoke(function(serviceA){});\n *\n *   // annotated\n *   function explicit(serviceA) {};\n *   explicit.$inject = ['serviceA'];\n *   $injector.invoke(explicit);\n *\n *   // inline\n *   $injector.invoke(['serviceA', function(serviceA){}]);\n * ```\n *\n * ## Inference\n *\n * In JavaScript calling `toString()` on a function returns the function definition. The definition\n * can then be parsed and the function arguments can be extracted. *NOTE:* This does not work with\n * minification, and obfuscation tools since these tools change the argument names.\n *\n * ## `$inject` Annotation\n * By adding an `$inject` property onto a function the injection parameters can be specified.\n *\n * ## Inline\n * As an array of injection names, where the last item in the array is the function to call.\n */\n\n/**\n * @ngdoc method\n * @name $injector#get\n *\n * @description\n * Return an instance of the service.\n *\n * @param {string} name The name of the instance to retrieve.\n * @return {*} The instance.\n */\n\n/**\n * @ngdoc method\n * @name $injector#invoke\n *\n * @description\n * Invoke the method and supply the method arguments from the `$injector`.\n *\n * @param {!Function} fn The function to invoke. Function parameters are injected according to the\n *   {@link guide/di $inject Annotation} rules.\n * @param {Object=} self The `this` for the invoked method.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n *                         object first, before the `$injector` is consulted.\n * @returns {*} the value returned by the invoked `fn` function.\n */\n\n/**\n * @ngdoc method\n * @name $injector#has\n *\n * @description\n * Allows the user to query if the particular service exists.\n *\n * @param {string} name Name of the service to query.\n * @returns {boolean} `true` if injector has given service.\n */\n\n/**\n * @ngdoc method\n * @name $injector#instantiate\n * @description\n * Create a new instance of JS type. The method takes a constructor function, invokes the new\n * operator, and supplies all of the arguments to the constructor function as specified by the\n * constructor annotation.\n *\n * @param {Function} Type Annotated constructor function.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n * object first, before the `$injector` is consulted.\n * @returns {Object} new instance of `Type`.\n */\n\n/**\n * @ngdoc method\n * @name $injector#annotate\n *\n * @description\n * Returns an array of service names which the function is requesting for injection. This API is\n * used by the injector to determine which services need to be injected into the function when the\n * function is invoked. There are three ways in which the function can be annotated with the needed\n * dependencies.\n *\n * # Argument names\n *\n * The simplest form is to extract the dependencies from the arguments of the function. This is done\n * by converting the function into a string using `toString()` method and extracting the argument\n * names.\n * ```js\n *   // Given\n *   function MyController($scope, $route) {\n *     // ...\n *   }\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * This method does not work with code minification / obfuscation. For this reason the following\n * annotation strategies are supported.\n *\n * # The `$inject` property\n *\n * If a function has an `$inject` property and its value is an array of strings, then the strings\n * represent names of services to be injected into the function.\n * ```js\n *   // Given\n *   var MyController = function(obfuscatedScope, obfuscatedRoute) {\n *     // ...\n *   }\n *   // Define function dependencies\n *   MyController['$inject'] = ['$scope', '$route'];\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * # The array notation\n *\n * It is often desirable to inline Injected functions and that's when setting the `$inject` property\n * is very inconvenient. In these situations using the array notation to specify the dependencies in\n * a way that survives minification is a better choice:\n *\n * ```js\n *   // We wish to write this (not minification / obfuscation safe)\n *   injector.invoke(function($compile, $rootScope) {\n *     // ...\n *   });\n *\n *   // We are forced to write break inlining\n *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {\n *     // ...\n *   };\n *   tmpFn.$inject = ['$compile', '$rootScope'];\n *   injector.invoke(tmpFn);\n *\n *   // To better support inline function the inline annotation is supported\n *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {\n *     // ...\n *   }]);\n *\n *   // Therefore\n *   expect(injector.annotate(\n *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])\n *    ).toEqual(['$compile', '$rootScope']);\n * ```\n *\n * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to\n * be retrieved as described above.\n *\n * @returns {Array.<string>} The names of the services which the function requires.\n */\n\n\n\n\n/**\n * @ngdoc service\n * @name $provide\n *\n * @description\n *\n * The {@link auto.$provide $provide} service has a number of methods for registering components\n * with the {@link auto.$injector $injector}. Many of these functions are also exposed on\n * {@link angular.Module}.\n *\n * An Angular **service** is a singleton object created by a **service factory**.  These **service\n * factories** are functions which, in turn, are created by a **service provider**.\n * The **service providers** are constructor functions. When instantiated they must contain a\n * property called `$get`, which holds the **service factory** function.\n *\n * When you request a service, the {@link auto.$injector $injector} is responsible for finding the\n * correct **service provider**, instantiating it and then calling its `$get` **service factory**\n * function to get the instance of the **service**.\n *\n * Often services have no configuration options and there is no need to add methods to the service\n * provider.  The provider will be no more than a constructor function with a `$get` property. For\n * these cases the {@link auto.$provide $provide} service has additional helper methods to register\n * services without specifying a provider.\n *\n * * {@link auto.$provide#provider provider(provider)} - registers a **service provider** with the\n *     {@link auto.$injector $injector}\n * * {@link auto.$provide#constant constant(obj)} - registers a value/object that can be accessed by\n *     providers and services.\n * * {@link auto.$provide#value value(obj)} - registers a value/object that can only be accessed by\n *     services, not providers.\n * * {@link auto.$provide#factory factory(fn)} - registers a service **factory function**, `fn`,\n *     that will be wrapped in a **service provider** object, whose `$get` property will contain the\n *     given factory function.\n * * {@link auto.$provide#service service(class)} - registers a **constructor function**, `class`\n *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate\n *      a new object using the given constructor function.\n *\n * See the individual methods for more information and examples.\n */\n\n/**\n * @ngdoc method\n * @name $provide#provider\n * @description\n *\n * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions\n * are constructor functions, whose instances are responsible for \"providing\" a factory for a\n * service.\n *\n * Service provider names start with the name of the service they provide followed by `Provider`.\n * For example, the {@link ng.$log $log} service has a provider called\n * {@link ng.$logProvider $logProvider}.\n *\n * Service provider objects can have additional methods which allow configuration of the provider\n * and its service. Importantly, you can configure what kind of service is created by the `$get`\n * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a\n * method {@link ng.$logProvider#debugEnabled debugEnabled}\n * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the\n * console or not.\n *\n * @param {string} name The name of the instance. NOTE: the provider will be available under `name +\n                        'Provider'` key.\n * @param {(Object|function())} provider If the provider is:\n *\n *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using\n *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.\n *   - `Constructor`: a new instance of the provider will be created using\n *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.\n *\n * @returns {Object} registered provider instance\n\n * @example\n *\n * The following example shows how to create a simple event tracking service and register it using\n * {@link auto.$provide#provider $provide.provider()}.\n *\n * ```js\n *  // Define the eventTracker provider\n *  function EventTrackerProvider() {\n *    var trackingUrl = '/track';\n *\n *    // A provider method for configuring where the tracked events should been saved\n *    this.setTrackingUrl = function(url) {\n *      trackingUrl = url;\n *    };\n *\n *    // The service factory function\n *    this.$get = ['$http', function($http) {\n *      var trackedEvents = {};\n *      return {\n *        // Call this to track an event\n *        event: function(event) {\n *          var count = trackedEvents[event] || 0;\n *          count += 1;\n *          trackedEvents[event] = count;\n *          return count;\n *        },\n *        // Call this to save the tracked events to the trackingUrl\n *        save: function() {\n *          $http.post(trackingUrl, trackedEvents);\n *        }\n *      };\n *    }];\n *  }\n *\n *  describe('eventTracker', function() {\n *    var postSpy;\n *\n *    beforeEach(module(function($provide) {\n *      // Register the eventTracker provider\n *      $provide.provider('eventTracker', EventTrackerProvider);\n *    }));\n *\n *    beforeEach(module(function(eventTrackerProvider) {\n *      // Configure eventTracker provider\n *      eventTrackerProvider.setTrackingUrl('/custom-track');\n *    }));\n *\n *    it('tracks events', inject(function(eventTracker) {\n *      expect(eventTracker.event('login')).toEqual(1);\n *      expect(eventTracker.event('login')).toEqual(2);\n *    }));\n *\n *    it('saves to the tracking url', inject(function(eventTracker, $http) {\n *      postSpy = spyOn($http, 'post');\n *      eventTracker.event('login');\n *      eventTracker.save();\n *      expect(postSpy).toHaveBeenCalled();\n *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');\n *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');\n *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });\n *    }));\n *  });\n * ```\n */\n\n/**\n * @ngdoc method\n * @name $provide#factory\n * @description\n *\n * Register a **service factory**, which will be called to return the service instance.\n * This is short for registering a service where its provider consists of only a `$get` property,\n * which is the given service factory function.\n * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to\n * configure your service in a provider.\n *\n * @param {string} name The name of the instance.\n * @param {function()} $getFn The $getFn for the instance creation. Internally this is a short hand\n *                            for `$provide.provider(name, {$get: $getFn})`.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service\n * ```js\n *   $provide.factory('ping', ['$http', function($http) {\n *     return function ping() {\n *       return $http.send('/ping');\n *     };\n *   }]);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#service\n * @description\n *\n * Register a **service constructor**, which will be invoked with `new` to create the service\n * instance.\n * This is short for registering a service where its provider's `$get` property is the service\n * constructor function that will be used to instantiate the service instance.\n *\n * You should use {@link auto.$provide#service $provide.service(class)} if you define your service\n * as a type/class.\n *\n * @param {string} name The name of the instance.\n * @param {Function} constructor A class (constructor function) that will be instantiated.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service using\n * {@link auto.$provide#service $provide.service(class)}.\n * ```js\n *   var Ping = function($http) {\n *     this.$http = $http;\n *   };\n *\n *   Ping.$inject = ['$http'];\n *\n *   Ping.prototype.send = function() {\n *     return this.$http.get('/ping');\n *   };\n *   $provide.service('ping', Ping);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping.send();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#value\n * @description\n *\n * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a\n * number, an array, an object or a function.  This is short for registering a service where its\n * provider's `$get` property is a factory function that takes no arguments and returns the **value\n * service**.\n *\n * Value services are similar to constant services, except that they cannot be injected into a\n * module configuration function (see {@link angular.Module#config}) but they can be overridden by\n * an Angular\n * {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the instance.\n * @param {*} value The value.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here are some examples of creating value services.\n * ```js\n *   $provide.value('ADMIN_USER', 'admin');\n *\n *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });\n *\n *   $provide.value('halfOf', function(value) {\n *     return value / 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#constant\n * @description\n *\n * Register a **constant service**, such as a string, a number, an array, an object or a function,\n * with the {@link auto.$injector $injector}. Unlike {@link auto.$provide#value value} it can be\n * injected into a module configuration function (see {@link angular.Module#config}) and it cannot\n * be overridden by an Angular {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the constant.\n * @param {*} value The constant value.\n * @returns {Object} registered instance\n *\n * @example\n * Here a some examples of creating constants:\n * ```js\n *   $provide.constant('SHARD_HEIGHT', 306);\n *\n *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);\n *\n *   $provide.constant('double', function(value) {\n *     return value * 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#decorator\n * @description\n *\n * Register a **service decorator** with the {@link auto.$injector $injector}. A service decorator\n * intercepts the creation of a service, allowing it to override or modify the behaviour of the\n * service. The object returned by the decorator may be the original service, or a new service\n * object which replaces or wraps and delegates to the original service.\n *\n * @param {string} name The name of the service to decorate.\n * @param {function()} decorator This function will be invoked when the service needs to be\n *    instantiated and should return the decorated service instance. The function is called using\n *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.\n *    Local injection arguments:\n *\n *    * `$delegate` - The original service instance, which can be monkey patched, configured,\n *      decorated or delegated to.\n *\n * @example\n * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting\n * calls to {@link ng.$log#error $log.warn()}.\n * ```js\n *   $provide.decorator('$log', ['$delegate', function($delegate) {\n *     $delegate.warn = $delegate.error;\n *     return $delegate;\n *   }]);\n * ```\n */\n\n\nfunction createInjector(modulesToLoad) {\n  var INSTANTIATING = {},\n      providerSuffix = 'Provider',\n      path = [],\n      loadedModules = new HashMap([], true),\n      providerCache = {\n        $provide: {\n            provider: supportObject(provider),\n            factory: supportObject(factory),\n            service: supportObject(service),\n            value: supportObject(value),\n            constant: supportObject(constant),\n            decorator: decorator\n          }\n      },\n      providerInjector = (providerCache.$injector =\n          createInternalInjector(providerCache, function() {\n            throw $injectorMinErr('unpr', \"Unknown provider: {0}\", path.join(' <- '));\n          })),\n      instanceCache = {},\n      instanceInjector = (instanceCache.$injector =\n          createInternalInjector(instanceCache, function(servicename) {\n            var provider = providerInjector.get(servicename + providerSuffix);\n            return instanceInjector.invoke(provider.$get, provider);\n          }));\n\n\n  forEach(loadModules(modulesToLoad), function(fn) { instanceInjector.invoke(fn || noop); });\n\n  return instanceInjector;\n\n  ////////////////////////////////////\n  // $provider\n  ////////////////////////////////////\n\n  function supportObject(delegate) {\n    return function(key, value) {\n      if (isObject(key)) {\n        forEach(key, reverseParams(delegate));\n      } else {\n        return delegate(key, value);\n      }\n    };\n  }\n\n  function provider(name, provider_) {\n    assertNotHasOwnProperty(name, 'service');\n    if (isFunction(provider_) || isArray(provider_)) {\n      provider_ = providerInjector.instantiate(provider_);\n    }\n    if (!provider_.$get) {\n      throw $injectorMinErr('pget', \"Provider '{0}' must define $get factory method.\", name);\n    }\n    return providerCache[name + providerSuffix] = provider_;\n  }\n\n  function factory(name, factoryFn) { return provider(name, { $get: factoryFn }); }\n\n  function service(name, constructor) {\n    return factory(name, ['$injector', function($injector) {\n      return $injector.instantiate(constructor);\n    }]);\n  }\n\n  function value(name, val) { return factory(name, valueFn(val)); }\n\n  function constant(name, value) {\n    assertNotHasOwnProperty(name, 'constant');\n    providerCache[name] = value;\n    instanceCache[name] = value;\n  }\n\n  function decorator(serviceName, decorFn) {\n    var origProvider = providerInjector.get(serviceName + providerSuffix),\n        orig$get = origProvider.$get;\n\n    origProvider.$get = function() {\n      var origInstance = instanceInjector.invoke(orig$get, origProvider);\n      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});\n    };\n  }\n\n  ////////////////////////////////////\n  // Module Loading\n  ////////////////////////////////////\n  function loadModules(modulesToLoad){\n    var runBlocks = [], moduleFn, invokeQueue, i, ii;\n    forEach(modulesToLoad, function(module) {\n      if (loadedModules.get(module)) return;\n      loadedModules.put(module, true);\n\n      try {\n        if (isString(module)) {\n          moduleFn = angularModule(module);\n          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);\n\n          for(invokeQueue = moduleFn._invokeQueue, i = 0, ii = invokeQueue.length; i < ii; i++) {\n            var invokeArgs = invokeQueue[i],\n                provider = providerInjector.get(invokeArgs[0]);\n\n            provider[invokeArgs[1]].apply(provider, invokeArgs[2]);\n          }\n        } else if (isFunction(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else if (isArray(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else {\n          assertArgFn(module, 'module');\n        }\n      } catch (e) {\n        if (isArray(module)) {\n          module = module[module.length - 1];\n        }\n        if (e.message && e.stack && e.stack.indexOf(e.message) == -1) {\n          // Safari & FF's stack traces don't contain error.message content\n          // unlike those of Chrome and IE\n          // So if stack doesn't contain message, we create a new string that contains both.\n          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.\n          /* jshint -W022 */\n          e = e.message + '\\n' + e.stack;\n        }\n        throw $injectorMinErr('modulerr', \"Failed to instantiate module {0} due to:\\n{1}\",\n                  module, e.stack || e.message || e);\n      }\n    });\n    return runBlocks;\n  }\n\n  ////////////////////////////////////\n  // internal Injector\n  ////////////////////////////////////\n\n  function createInternalInjector(cache, factory) {\n\n    function getService(serviceName) {\n      if (cache.hasOwnProperty(serviceName)) {\n        if (cache[serviceName] === INSTANTIATING) {\n          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',\n                    serviceName + ' <- ' + path.join(' <- '));\n        }\n        return cache[serviceName];\n      } else {\n        try {\n          path.unshift(serviceName);\n          cache[serviceName] = INSTANTIATING;\n          return cache[serviceName] = factory(serviceName);\n        } catch (err) {\n          if (cache[serviceName] === INSTANTIATING) {\n            delete cache[serviceName];\n          }\n          throw err;\n        } finally {\n          path.shift();\n        }\n      }\n    }\n\n    function invoke(fn, self, locals){\n      var args = [],\n          $inject = annotate(fn),\n          length, i,\n          key;\n\n      for(i = 0, length = $inject.length; i < length; i++) {\n        key = $inject[i];\n        if (typeof key !== 'string') {\n          throw $injectorMinErr('itkn',\n                  'Incorrect injection token! Expected service name as string, got {0}', key);\n        }\n        args.push(\n          locals && locals.hasOwnProperty(key)\n          ? locals[key]\n          : getService(key)\n        );\n      }\n      if (isArray(fn)) {\n        fn = fn[length];\n      }\n\n      // http://jsperf.com/angularjs-invoke-apply-vs-switch\n      // #5388\n      return fn.apply(self, args);\n    }\n\n    function instantiate(Type, locals) {\n      var Constructor = function() {},\n          instance, returnedValue;\n\n      // Check if Type is annotated and use just the given function at n-1 as parameter\n      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);\n      Constructor.prototype = (isArray(Type) ? Type[Type.length - 1] : Type).prototype;\n      instance = new Constructor();\n      returnedValue = invoke(Type, instance, locals);\n\n      return isObject(returnedValue) || isFunction(returnedValue) ? returnedValue : instance;\n    }\n\n    return {\n      invoke: invoke,\n      instantiate: instantiate,\n      get: getService,\n      annotate: annotate,\n      has: function(name) {\n        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);\n      }\n    };\n  }\n}\n\n/**\n * @ngdoc service\n * @name $anchorScroll\n * @kind function\n * @requires $window\n * @requires $location\n * @requires $rootScope\n *\n * @description\n * When called, it checks current value of `$location.hash()` and scrolls to the related element,\n * according to rules specified in\n * [Html5 spec](http://dev.w3.org/html5/spec/Overview.html#the-indicated-part-of-the-document).\n *\n * It also watches the `$location.hash()` and scrolls whenever it changes to match any anchor.\n * This can be disabled by calling `$anchorScrollProvider.disableAutoScrolling()`.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <div id=\"scrollArea\" ng-controller=\"ScrollCtrl\">\n         <a ng-click=\"gotoBottom()\">Go to bottom</a>\n         <a id=\"bottom\"></a> You're at the bottom!\n       </div>\n     </file>\n     <file name=\"script.js\">\n       function ScrollCtrl($scope, $location, $anchorScroll) {\n         $scope.gotoBottom = function (){\n           // set the location.hash to the id of\n           // the element you wish to scroll to.\n           $location.hash('bottom');\n\n           // call $anchorScroll()\n           $anchorScroll();\n         };\n       }\n     </file>\n     <file name=\"style.css\">\n       #scrollArea {\n         height: 350px;\n         overflow: auto;\n       }\n\n       #bottom {\n         display: block;\n         margin-top: 2000px;\n       }\n     </file>\n   </example>\n */\nfunction $AnchorScrollProvider() {\n\n  var autoScrollingEnabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $anchorScrollProvider#disableAutoScrolling\n   *\n   * @description\n   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to\n   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />\n   * Use this method to disable automatic scrolling.\n   *\n   * If automatic scrolling is disabled, one must explicitly call\n   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the\n   * current hash.\n   */\n  this.disableAutoScrolling = function() {\n    autoScrollingEnabled = false;\n  };\n\n  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {\n    var document = $window.document;\n\n    // helper function to get first anchor from a NodeList\n    // can't use filter.filter, as it accepts only instances of Array\n    // and IE can't convert NodeList to an array using [].slice\n    // TODO(vojta): use filter if we change it to accept lists as well\n    function getFirstAnchor(list) {\n      var result = null;\n      forEach(list, function(element) {\n        if (!result && lowercase(element.nodeName) === 'a') result = element;\n      });\n      return result;\n    }\n\n    function scroll() {\n      var hash = $location.hash(), elm;\n\n      // empty hash, scroll to the top of the page\n      if (!hash) $window.scrollTo(0, 0);\n\n      // element with given id\n      else if ((elm = document.getElementById(hash))) elm.scrollIntoView();\n\n      // first anchor with given name :-D\n      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) elm.scrollIntoView();\n\n      // no element and hash == 'top', scroll to the top of the page\n      else if (hash === 'top') $window.scrollTo(0, 0);\n    }\n\n    // does not scroll when user clicks on anchor link that is currently on\n    // (no url change, no $location.hash() change), browser native does scroll\n    if (autoScrollingEnabled) {\n      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},\n        function autoScrollWatchAction() {\n          $rootScope.$evalAsync(scroll);\n        });\n    }\n\n    return scroll;\n  }];\n}\n\nvar $animateMinErr = minErr('$animate');\n\n/**\n * @ngdoc provider\n * @name $animateProvider\n *\n * @description\n * Default implementation of $animate that doesn't perform any animations, instead just\n * synchronously performs DOM\n * updates and calls done() callbacks.\n *\n * In order to enable animations the ngAnimate module has to be loaded.\n *\n * To see the functional implementation check out src/ngAnimate/animate.js\n */\nvar $AnimateProvider = ['$provide', function($provide) {\n\n\n  this.$$selectors = {};\n\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#register\n   *\n   * @description\n   * Registers a new injectable animation factory function. The factory function produces the\n   * animation object which contains callback functions for each event that is expected to be\n   * animated.\n   *\n   *   * `eventFn`: `function(Element, doneFunction)` The element to animate, the `doneFunction`\n   *   must be called once the element animation is complete. If a function is returned then the\n   *   animation service will use this function to cancel the animation whenever a cancel event is\n   *   triggered.\n   *\n   *\n   * ```js\n   *   return {\n     *     eventFn : function(element, done) {\n     *       //code to run the animation\n     *       //once complete, then run done()\n     *       return function cancellationFunction() {\n     *         //code to cancel the animation\n     *       }\n     *     }\n     *   }\n   * ```\n   *\n   * @param {string} name The name of the animation.\n   * @param {Function} factory The factory function that will be executed to return the animation\n   *                           object.\n   */\n  this.register = function(name, factory) {\n    var key = name + '-animation';\n    if (name && name.charAt(0) != '.') throw $animateMinErr('notcsel',\n        \"Expecting class selector starting with '.' got '{0}'.\", name);\n    this.$$selectors[name.substr(1)] = key;\n    $provide.factory(key, factory);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#classNameFilter\n   *\n   * @description\n   * Sets and/or returns the CSS class regular expression that is checked when performing\n   * an animation. Upon bootstrap the classNameFilter value is not set at all and will\n   * therefore enable $animate to attempt to perform an animation on any element.\n   * When setting the classNameFilter value, animations will only be performed on elements\n   * that successfully match the filter expression. This in turn can boost performance\n   * for low-powered devices as well as applications containing a lot of structural operations.\n   * @param {RegExp=} expression The className expression which will be checked against all animations\n   * @return {RegExp} The current CSS className expression value. If null then there is no expression value\n   */\n  this.classNameFilter = function(expression) {\n    if(arguments.length === 1) {\n      this.$$classNameFilter = (expression instanceof RegExp) ? expression : null;\n    }\n    return this.$$classNameFilter;\n  };\n\n  this.$get = ['$timeout', '$$asyncCallback', function($timeout, $$asyncCallback) {\n\n    function async(fn) {\n      fn && $$asyncCallback(fn);\n    }\n\n    /**\n     *\n     * @ngdoc service\n     * @name $animate\n     * @description The $animate service provides rudimentary DOM manipulation functions to\n     * insert, remove and move elements within the DOM, as well as adding and removing classes.\n     * This service is the core service used by the ngAnimate $animator service which provides\n     * high-level animation hooks for CSS and JavaScript.\n     *\n     * $animate is available in the AngularJS core, however, the ngAnimate module must be included\n     * to enable full out animation support. Otherwise, $animate will only perform simple DOM\n     * manipulation operations.\n     *\n     * To learn more about enabling animation support, click here to visit the {@link ngAnimate\n     * ngAnimate module page} as well as the {@link ngAnimate.$animate ngAnimate $animate service\n     * page}.\n     */\n    return {\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enter\n       * @kind function\n       * @description Inserts the element into the DOM either after the `after` element or within\n       *   the `parent` element. Once complete, the done() callback will be fired (if provided).\n       * @param {DOMElement} element the element which will be inserted into the DOM\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (if the after element is not present)\n       * @param {DOMElement} after the sibling element which will append the element\n       *   after itself\n       * @param {Function=} done callback function that will be called after the element has been\n       *   inserted into the DOM\n       */\n      enter : function(element, parent, after, done) {\n        if (after) {\n          after.after(element);\n        } else {\n          if (!parent || !parent[0]) {\n            parent = after.parent();\n          }\n          parent.append(element);\n        }\n        async(done);\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#leave\n       * @kind function\n       * @description Removes the element from the DOM. Once complete, the done() callback will be\n       *   fired (if provided).\n       * @param {DOMElement} element the element which will be removed from the DOM\n       * @param {Function=} done callback function that will be called after the element has been\n       *   removed from the DOM\n       */\n      leave : function(element, done) {\n        element.remove();\n        async(done);\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#move\n       * @kind function\n       * @description Moves the position of the provided element within the DOM to be placed\n       * either after the `after` element or inside of the `parent` element. Once complete, the\n       * done() callback will be fired (if provided).\n       *\n       * @param {DOMElement} element the element which will be moved around within the\n       *   DOM\n       * @param {DOMElement} parent the parent element where the element will be\n       *   inserted into (if the after element is not present)\n       * @param {DOMElement} after the sibling element where the element will be\n       *   positioned next to\n       * @param {Function=} done the callback function (if provided) that will be fired after the\n       *   element has been moved to its new position\n       */\n      move : function(element, parent, after, done) {\n        // Do not remove element before insert. Removing will cause data associated with the\n        // element to be dropped. Insert will implicitly do the remove.\n        this.enter(element, parent, after, done);\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#addClass\n       * @kind function\n       * @description Adds the provided className CSS class value to the provided element. Once\n       * complete, the done() callback will be fired (if provided).\n       * @param {DOMElement} element the element which will have the className value\n       *   added to it\n       * @param {string} className the CSS class which will be added to the element\n       * @param {Function=} done the callback function (if provided) that will be fired after the\n       *   className value has been added to the element\n       */\n      addClass : function(element, className, done) {\n        className = isString(className) ?\n                      className :\n                      isArray(className) ? className.join(' ') : '';\n        forEach(element, function (element) {\n          jqLiteAddClass(element, className);\n        });\n        async(done);\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#removeClass\n       * @kind function\n       * @description Removes the provided className CSS class value from the provided element.\n       * Once complete, the done() callback will be fired (if provided).\n       * @param {DOMElement} element the element which will have the className value\n       *   removed from it\n       * @param {string} className the CSS class which will be removed from the element\n       * @param {Function=} done the callback function (if provided) that will be fired after the\n       *   className value has been removed from the element\n       */\n      removeClass : function(element, className, done) {\n        className = isString(className) ?\n                      className :\n                      isArray(className) ? className.join(' ') : '';\n        forEach(element, function (element) {\n          jqLiteRemoveClass(element, className);\n        });\n        async(done);\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#setClass\n       * @kind function\n       * @description Adds and/or removes the given CSS classes to and from the element.\n       * Once complete, the done() callback will be fired (if provided).\n       * @param {DOMElement} element the element which will have its CSS classes changed\n       *   removed from it\n       * @param {string} add the CSS classes which will be added to the element\n       * @param {string} remove the CSS class which will be removed from the element\n       * @param {Function=} done the callback function (if provided) that will be fired after the\n       *   CSS classes have been set on the element\n       */\n      setClass : function(element, add, remove, done) {\n        forEach(element, function (element) {\n          jqLiteAddClass(element, add);\n          jqLiteRemoveClass(element, remove);\n        });\n        async(done);\n      },\n\n      enabled : noop\n    };\n  }];\n}];\n\nfunction $$AsyncCallbackProvider(){\n  this.$get = ['$$rAF', '$timeout', function($$rAF, $timeout) {\n    return $$rAF.supported\n      ? function(fn) { return $$rAF(fn); }\n      : function(fn) {\n        return $timeout(fn, 0, false);\n      };\n  }];\n}\n\n/* global stripHash: true */\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n * @requires $log\n * @description\n * This object has two goals:\n *\n * - hide all the global state in the browser caused by the window object\n * - abstract away all the browser specific features and inconsistencies\n *\n * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`\n * service, which can be used for convenient testing of the application without the interaction with\n * the real browser apis.\n */\n/**\n * @param {object} window The global window object.\n * @param {object} document jQuery wrapped document.\n * @param {function()} XHR XMLHttpRequest constructor.\n * @param {object} $log console.log or an object with the same interface.\n * @param {object} $sniffer $sniffer service\n */\nfunction Browser(window, document, $log, $sniffer) {\n  var self = this,\n      rawDocument = document[0],\n      location = window.location,\n      history = window.history,\n      setTimeout = window.setTimeout,\n      clearTimeout = window.clearTimeout,\n      pendingDeferIds = {};\n\n  self.isMock = false;\n\n  var outstandingRequestCount = 0;\n  var outstandingRequestCallbacks = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = completeOutstandingRequest;\n  self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };\n\n  /**\n   * Executes the `fn` function(supports currying) and decrements the `outstandingRequestCallbacks`\n   * counter. If the counter reaches 0, all the `outstandingRequestCallbacks` are executed.\n   */\n  function completeOutstandingRequest(fn) {\n    try {\n      fn.apply(null, sliceArgs(arguments, 1));\n    } finally {\n      outstandingRequestCount--;\n      if (outstandingRequestCount === 0) {\n        while(outstandingRequestCallbacks.length) {\n          try {\n            outstandingRequestCallbacks.pop()();\n          } catch (e) {\n            $log.error(e);\n          }\n        }\n      }\n    }\n  }\n\n  function getHash(url) {\n    var index = url.indexOf('#');\n    return index === -1 ? '' : url.substr(index + 1);\n  }\n\n  /**\n   * @private\n   * Note: this method is used only by scenario runner\n   * TODO(vojta): prefix this method with $$ ?\n   * @param {function()} callback Function that will be called when no outstanding request\n   */\n  self.notifyWhenNoOutstandingRequests = function(callback) {\n    // force browser to execute all pollFns - this is needed so that cookies and other pollers fire\n    // at some deterministic time in respect to the test runner's actions. Leaving things up to the\n    // regular poller would result in flaky tests.\n    forEach(pollFns, function(pollFn){ pollFn(); });\n\n    if (outstandingRequestCount === 0) {\n      callback();\n    } else {\n      outstandingRequestCallbacks.push(callback);\n    }\n  };\n\n  //////////////////////////////////////////////////////////////\n  // Poll Watcher API\n  //////////////////////////////////////////////////////////////\n  var pollFns = [],\n      pollTimeout;\n\n  /**\n   * @name $browser#addPollFn\n   *\n   * @param {function()} fn Poll function to add\n   *\n   * @description\n   * Adds a function to the list of functions that poller periodically executes,\n   * and starts polling if not started yet.\n   *\n   * @returns {function()} the added function\n   */\n  self.addPollFn = function(fn) {\n    if (isUndefined(pollTimeout)) startPoller(100, setTimeout);\n    pollFns.push(fn);\n    return fn;\n  };\n\n  /**\n   * @param {number} interval How often should browser call poll functions (ms)\n   * @param {function()} setTimeout Reference to a real or fake `setTimeout` function.\n   *\n   * @description\n   * Configures the poller to run in the specified intervals, using the specified\n   * setTimeout fn and kicks it off.\n   */\n  function startPoller(interval, setTimeout) {\n    (function check() {\n      forEach(pollFns, function(pollFn){ pollFn(); });\n      pollTimeout = setTimeout(check, interval);\n    })();\n  }\n\n  //////////////////////////////////////////////////////////////\n  // URL API\n  //////////////////////////////////////////////////////////////\n\n  var lastBrowserUrl = location.href,\n      baseElement = document.find('base'),\n      reloadLocation = null;\n\n  /**\n   * @name $browser#url\n   *\n   * @description\n   * GETTER:\n   * Without any argument, this method just returns current value of location.href.\n   *\n   * SETTER:\n   * With at least one argument, this method sets url to new value.\n   * If html5 history api supported, pushState/replaceState is used, otherwise\n   * location.href/location.replace is used.\n   * Returns its own instance to allow chaining\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to change url.\n   *\n   * @param {string} url New url (when used as setter)\n   * @param {boolean=} replace Should new url replace current history record ?\n   */\n  self.url = function(url, replace) {\n    // Android Browser BFCache causes location, history reference to become stale.\n    if (location !== window.location) location = window.location;\n    if (history !== window.history) history = window.history;\n\n    // setter\n    if (url) {\n      if (lastBrowserUrl == url) return;\n      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);\n      lastBrowserUrl = url;\n      // Don't use history API if only the hash changed\n      // due to a bug in IE10/IE11 which leads\n      // to not firing a `hashchange` nor `popstate` event\n      // in some cases (see #9143).\n      if (!sameBase && $sniffer.history) {\n        if (replace) history.replaceState(null, '', url);\n        else {\n          history.pushState(null, '', url);\n          // Crazy Opera Bug: http://my.opera.com/community/forums/topic.dml?id=1185462\n          baseElement.attr('href', baseElement.attr('href'));\n        }\n      } else {\n        if (!sameBase) {\n          reloadLocation = url;\n        }\n        if (replace) {\n          location.replace(url);\n        } else if (!sameBase) {\n          location.href = url;\n        } else {\n          location.hash = getHash(url);\n        }\n      }\n      return self;\n    // getter\n    } else {\n      // - reloadLocation is needed as browsers don't allow to read out\n      //   the new location.href if a reload happened.\n      // - the replacement is a workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=407172\n      return reloadLocation || location.href.replace(/%27/g,\"'\");\n    }\n  };\n\n  var urlChangeListeners = [],\n      urlChangeInit = false;\n\n  function fireUrlChange() {\n    if (lastBrowserUrl == self.url()) return;\n\n    lastBrowserUrl = self.url();\n    forEach(urlChangeListeners, function(listener) {\n      listener(self.url());\n    });\n  }\n\n  /**\n   * @name $browser#onUrlChange\n   *\n   * @description\n   * Register callback function that will be called, when url changes.\n   *\n   * It's only called when the url is changed from outside of angular:\n   * - user types different url into address bar\n   * - user clicks on history (forward/back) button\n   * - user clicks on a link\n   *\n   * It's not called when url is changed by $browser.url() method\n   *\n   * The listener gets called with new url as parameter.\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to monitor url changes in angular apps.\n   *\n   * @param {function(string)} listener Listener function to be called when url changes.\n   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.\n   */\n  self.onUrlChange = function(callback) {\n    // TODO(vojta): refactor to use node's syntax for events\n    if (!urlChangeInit) {\n      // We listen on both (hashchange/popstate) when available, as some browsers (e.g. Opera)\n      // don't fire popstate when user change the address bar and don't fire hashchange when url\n      // changed by push/replaceState\n\n      // html5 history api - popstate event\n      if ($sniffer.history) jqLite(window).on('popstate', fireUrlChange);\n      // hashchange event\n      if ($sniffer.hashchange) jqLite(window).on('hashchange', fireUrlChange);\n      // polling\n      else self.addPollFn(fireUrlChange);\n\n      urlChangeInit = true;\n    }\n\n    urlChangeListeners.push(callback);\n    return callback;\n  };\n\n  /**\n   * Checks whether the url has changed outside of Angular.\n   * Needs to be exported to be able to check for changes that have been done in sync,\n   * as hashchange/popstate events fire in async.\n   */\n  self.$$checkUrlChange = fireUrlChange;\n\n  //////////////////////////////////////////////////////////////\n  // Misc API\n  //////////////////////////////////////////////////////////////\n\n  /**\n   * @name $browser#baseHref\n   *\n   * @description\n   * Returns current <base href>\n   * (always relative - without domain)\n   *\n   * @returns {string} The current base href\n   */\n  self.baseHref = function() {\n    var href = baseElement.attr('href');\n    return href ? href.replace(/^(https?\\:)?\\/\\/[^\\/]*/, '') : '';\n  };\n\n  //////////////////////////////////////////////////////////////\n  // Cookies API\n  //////////////////////////////////////////////////////////////\n  var lastCookies = {};\n  var lastCookieString = '';\n  var cookiePath = self.baseHref();\n\n  /**\n   * @name $browser#cookies\n   *\n   * @param {string=} name Cookie name\n   * @param {string=} value Cookie value\n   *\n   * @description\n   * The cookies method provides a 'private' low level access to browser cookies.\n   * It is not meant to be used directly, use the $cookie service instead.\n   *\n   * The return values vary depending on the arguments that the method was called with as follows:\n   *\n   * - cookies() -> hash of all cookies, this is NOT a copy of the internal state, so do not modify\n   *   it\n   * - cookies(name, value) -> set name to value, if value is undefined delete the cookie\n   * - cookies(name) -> the same as (name, undefined) == DELETES (no one calls it right now that\n   *   way)\n   *\n   * @returns {Object} Hash of all cookies (if called without any parameter)\n   */\n  self.cookies = function(name, value) {\n    /* global escape: false, unescape: false */\n    var cookieLength, cookieArray, cookie, i, index;\n\n    if (name) {\n      if (value === undefined) {\n        rawDocument.cookie = escape(name) + \"=;path=\" + cookiePath +\n                                \";expires=Thu, 01 Jan 1970 00:00:00 GMT\";\n      } else {\n        if (isString(value)) {\n          cookieLength = (rawDocument.cookie = escape(name) + '=' + escape(value) +\n                                ';path=' + cookiePath).length + 1;\n\n          // per http://www.ietf.org/rfc/rfc2109.txt browser must allow at minimum:\n          // - 300 cookies\n          // - 20 cookies per unique domain\n          // - 4096 bytes per cookie\n          if (cookieLength > 4096) {\n            $log.warn(\"Cookie '\"+ name +\n              \"' possibly not set or overflowed because it was too large (\"+\n              cookieLength + \" > 4096 bytes)!\");\n          }\n        }\n      }\n    } else {\n      if (rawDocument.cookie !== lastCookieString) {\n        lastCookieString = rawDocument.cookie;\n        cookieArray = lastCookieString.split(\"; \");\n        lastCookies = {};\n\n        for (i = 0; i < cookieArray.length; i++) {\n          cookie = cookieArray[i];\n          index = cookie.indexOf('=');\n          if (index > 0) { //ignore nameless cookies\n            name = unescape(cookie.substring(0, index));\n            // the first value that is seen for a cookie is the most\n            // specific one.  values for the same cookie name that\n            // follow are for less specific paths.\n            if (lastCookies[name] === undefined) {\n              lastCookies[name] = unescape(cookie.substring(index + 1));\n            }\n          }\n        }\n      }\n      return lastCookies;\n    }\n  };\n\n\n  /**\n   * @name $browser#defer\n   * @param {function()} fn A function, who's execution should be deferred.\n   * @param {number=} [delay=0] of milliseconds to defer the function execution.\n   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.\n   *\n   * @description\n   * Executes a fn asynchronously via `setTimeout(fn, delay)`.\n   *\n   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using\n   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed\n   * via `$browser.defer.flush()`.\n   *\n   */\n  self.defer = function(fn, delay) {\n    var timeoutId;\n    outstandingRequestCount++;\n    timeoutId = setTimeout(function() {\n      delete pendingDeferIds[timeoutId];\n      completeOutstandingRequest(fn);\n    }, delay || 0);\n    pendingDeferIds[timeoutId] = true;\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.cancel\n   *\n   * @description\n   * Cancels a deferred task identified with `deferId`.\n   *\n   * @param {*} deferId Token returned by the `$browser.defer` function.\n   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n   *                    canceled.\n   */\n  self.defer.cancel = function(deferId) {\n    if (pendingDeferIds[deferId]) {\n      delete pendingDeferIds[deferId];\n      clearTimeout(deferId);\n      completeOutstandingRequest(noop);\n      return true;\n    }\n    return false;\n  };\n\n}\n\nfunction $BrowserProvider(){\n  this.$get = ['$window', '$log', '$sniffer', '$document',\n      function( $window,   $log,   $sniffer,   $document){\n        return new Browser($window, $document, $log, $sniffer);\n      }];\n}\n\n/**\n * @ngdoc service\n * @name $cacheFactory\n *\n * @description\n * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to\n * them.\n *\n * ```js\n *\n *  var cache = $cacheFactory('cacheId');\n *  expect($cacheFactory.get('cacheId')).toBe(cache);\n *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();\n *\n *  cache.put(\"key\", \"value\");\n *  cache.put(\"another key\", \"another value\");\n *\n *  // We've specified no options on creation\n *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});\n *\n * ```\n *\n *\n * @param {string} cacheId Name or id of the newly created cache.\n * @param {object=} options Options object that specifies the cache behavior. Properties:\n *\n *   - `{number=}` `capacity` — turns the cache into LRU cache.\n *\n * @returns {object} Newly created cache object with the following set of methods:\n *\n * - `{object}` `info()` — Returns id, size, and options of cache.\n * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns\n *   it.\n * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.\n * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.\n * - `{void}` `removeAll()` — Removes all cached values.\n * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.\n *\n * @example\n   <example module=\"cacheExampleApp\">\n     <file name=\"index.html\">\n       <div ng-controller=\"CacheController\">\n         <input ng-model=\"newCacheKey\" placeholder=\"Key\">\n         <input ng-model=\"newCacheValue\" placeholder=\"Value\">\n         <button ng-click=\"put(newCacheKey, newCacheValue)\">Cache</button>\n\n         <p ng-if=\"keys.length\">Cached Values</p>\n         <div ng-repeat=\"key in keys\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"cache.get(key)\"></b>\n         </div>\n\n         <p>Cache Info</p>\n         <div ng-repeat=\"(key, value) in cache.info()\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"value\"></b>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('cacheExampleApp', []).\n         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {\n           $scope.keys = [];\n           $scope.cache = $cacheFactory('cacheId');\n           $scope.put = function(key, value) {\n             if ($scope.cache.get(key) === undefined) {\n               $scope.keys.push(key);\n             }\n             $scope.cache.put(key, value === undefined ? null : value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       p {\n         margin: 10px 0 3px;\n       }\n     </file>\n   </example>\n */\nfunction $CacheFactoryProvider() {\n\n  this.$get = function() {\n    var caches = {};\n\n    function cacheFactory(cacheId, options) {\n      if (cacheId in caches) {\n        throw minErr('$cacheFactory')('iid', \"CacheId '{0}' is already taken!\", cacheId);\n      }\n\n      var size = 0,\n          stats = extend({}, options, {id: cacheId}),\n          data = {},\n          capacity = (options && options.capacity) || Number.MAX_VALUE,\n          lruHash = {},\n          freshEnd = null,\n          staleEnd = null;\n\n      /**\n       * @ngdoc type\n       * @name $cacheFactory.Cache\n       *\n       * @description\n       * A cache object used to store and retrieve data, primarily used by\n       * {@link $http $http} and the {@link ng.directive:script script} directive to cache\n       * templates and other data.\n       *\n       * ```js\n       *  angular.module('superCache')\n       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {\n       *      return $cacheFactory('super-cache');\n       *    }]);\n       * ```\n       *\n       * Example test:\n       *\n       * ```js\n       *  it('should behave like a cache', inject(function(superCache) {\n       *    superCache.put('key', 'value');\n       *    superCache.put('another key', 'another value');\n       *\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 2\n       *    });\n       *\n       *    superCache.remove('another key');\n       *    expect(superCache.get('another key')).toBeUndefined();\n       *\n       *    superCache.removeAll();\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 0\n       *    });\n       *  }));\n       * ```\n       */\n      return caches[cacheId] = {\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#put\n         * @kind function\n         *\n         * @description\n         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be\n         * retrieved later, and incrementing the size of the cache if the key was not already\n         * present in the cache. If behaving like an LRU cache, it will also remove stale\n         * entries from the set.\n         *\n         * It will not insert undefined values into the cache.\n         *\n         * @param {string} key the key under which the cached data is stored.\n         * @param {*} value the value to store alongside the key. If it is undefined, the key\n         *    will not be stored.\n         * @returns {*} the value stored.\n         */\n        put: function(key, value) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});\n\n            refresh(lruEntry);\n          }\n\n          if (isUndefined(value)) return;\n          if (!(key in data)) size++;\n          data[key] = value;\n\n          if (size > capacity) {\n            this.remove(staleEnd.key);\n          }\n\n          return value;\n        },\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#get\n         * @kind function\n         *\n         * @description\n         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the data to be retrieved\n         * @returns {*} the value stored.\n         */\n        get: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            refresh(lruEntry);\n          }\n\n          return data[key];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#remove\n         * @kind function\n         *\n         * @description\n         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the entry to be removed\n         */\n        remove: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            if (lruEntry == freshEnd) freshEnd = lruEntry.p;\n            if (lruEntry == staleEnd) staleEnd = lruEntry.n;\n            link(lruEntry.n,lruEntry.p);\n\n            delete lruHash[key];\n          }\n\n          delete data[key];\n          size--;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#removeAll\n         * @kind function\n         *\n         * @description\n         * Clears the cache object of any entries.\n         */\n        removeAll: function() {\n          data = {};\n          size = 0;\n          lruHash = {};\n          freshEnd = staleEnd = null;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#destroy\n         * @kind function\n         *\n         * @description\n         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,\n         * removing it from the {@link $cacheFactory $cacheFactory} set.\n         */\n        destroy: function() {\n          data = null;\n          stats = null;\n          lruHash = null;\n          delete caches[cacheId];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#info\n         * @kind function\n         *\n         * @description\n         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.\n         *\n         * @returns {object} an object with the following properties:\n         *   <ul>\n         *     <li>**id**: the id of the cache instance</li>\n         *     <li>**size**: the number of entries kept in the cache instance</li>\n         *     <li>**...**: any additional properties from the options object when creating the\n         *       cache.</li>\n         *   </ul>\n         */\n        info: function() {\n          return extend({}, stats, {size: size});\n        }\n      };\n\n\n      /**\n       * makes the `entry` the freshEnd of the LRU linked list\n       */\n      function refresh(entry) {\n        if (entry != freshEnd) {\n          if (!staleEnd) {\n            staleEnd = entry;\n          } else if (staleEnd == entry) {\n            staleEnd = entry.n;\n          }\n\n          link(entry.n, entry.p);\n          link(entry, freshEnd);\n          freshEnd = entry;\n          freshEnd.n = null;\n        }\n      }\n\n\n      /**\n       * bidirectionally links two entries of the LRU linked list\n       */\n      function link(nextEntry, prevEntry) {\n        if (nextEntry != prevEntry) {\n          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify\n          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify\n        }\n      }\n    }\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#info\n   *\n   * @description\n   * Get information about all the caches that have been created\n   *\n   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`\n   */\n    cacheFactory.info = function() {\n      var info = {};\n      forEach(caches, function(cache, cacheId) {\n        info[cacheId] = cache.info();\n      });\n      return info;\n    };\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#get\n   *\n   * @description\n   * Get access to a cache object by the `cacheId` used when it was created.\n   *\n   * @param {string} cacheId Name or id of a cache to access.\n   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.\n   */\n    cacheFactory.get = function(cacheId) {\n      return caches[cacheId];\n    };\n\n\n    return cacheFactory;\n  };\n}\n\n/**\n * @ngdoc service\n * @name $templateCache\n *\n * @description\n * The first time a template is used, it is loaded in the template cache for quick retrieval. You\n * can load templates directly into the cache in a `script` tag, or by consuming the\n * `$templateCache` service directly.\n *\n * Adding via the `script` tag:\n *\n * ```html\n *   <script type=\"text/ng-template\" id=\"templateId.html\">\n *     <p>This is the content of the template</p>\n *   </script>\n * ```\n *\n * **Note:** the `script` tag containing the template does not need to be included in the `head` of\n * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (IE,\n * element with ng-app attribute), otherwise the template will be ignored.\n *\n * Adding via the $templateCache service:\n *\n * ```js\n * var myApp = angular.module('myApp', []);\n * myApp.run(function($templateCache) {\n *   $templateCache.put('templateId.html', 'This is the content of the template');\n * });\n * ```\n *\n * To retrieve the template later, simply use it in your HTML:\n * ```html\n * <div ng-include=\" 'templateId.html' \"></div>\n * ```\n *\n * or get it via Javascript:\n * ```js\n * $templateCache.get('templateId.html')\n * ```\n *\n * See {@link ng.$cacheFactory $cacheFactory}.\n *\n */\nfunction $TemplateCacheProvider() {\n  this.$get = ['$cacheFactory', function($cacheFactory) {\n    return $cacheFactory('templates');\n  }];\n}\n\n/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!\n *\n * DOM-related variables:\n *\n * - \"node\" - DOM Node\n * - \"element\" - DOM Element or Node\n * - \"$node\" or \"$element\" - jqLite-wrapped node or element\n *\n *\n * Compiler related stuff:\n *\n * - \"linkFn\" - linking fn of a single directive\n * - \"nodeLinkFn\" - function that aggregates all linking fns for a particular node\n * - \"childLinkFn\" -  function that aggregates all linking fns for child nodes of a particular node\n * - \"compositeLinkFn\" - function that aggregates all linking fns for a compilation root (nodeList)\n */\n\n\n/**\n * @ngdoc service\n * @name $compile\n * @kind function\n *\n * @description\n * Compiles an HTML string or DOM into a template and produces a template function, which\n * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.\n *\n * The compilation is a process of walking the DOM tree and matching DOM elements to\n * {@link ng.$compileProvider#directive directives}.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** This document is an in-depth reference of all directive options.\n * For a gentle introduction to directives with examples of common use cases,\n * see the {@link guide/directive directive guide}.\n * </div>\n *\n * ## Comprehensive Directive API\n *\n * There are many different options for a directive.\n *\n * The difference resides in the return value of the factory function.\n * You can either return a \"Directive Definition Object\" (see below) that defines the directive properties,\n * or just the `postLink` function (all other properties will have the default values).\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's recommended to use the \"directive definition object\" form.\n * </div>\n *\n * Here's an example directive declared with a Directive Definition Object:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       priority: 0,\n *       template: '<div></div>', // or // function(tElement, tAttrs) { ... },\n *       // or\n *       // templateUrl: 'directive.html', // or // function(tElement, tAttrs) { ... },\n *       transclude: false,\n *       restrict: 'A',\n *       scope: false,\n *       controller: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },\n *       controllerAs: 'stringAlias',\n *       require: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],\n *       compile: function compile(tElement, tAttrs, transclude) {\n *         return {\n *           pre: function preLink(scope, iElement, iAttrs, controller) { ... },\n *           post: function postLink(scope, iElement, iAttrs, controller) { ... }\n *         }\n *         // or\n *         // return function postLink( ... ) { ... }\n *       },\n *       // or\n *       // link: {\n *       //  pre: function preLink(scope, iElement, iAttrs, controller) { ... },\n *       //  post: function postLink(scope, iElement, iAttrs, controller) { ... }\n *       // }\n *       // or\n *       // link: function postLink( ... ) { ... }\n *     };\n *     return directiveDefinitionObject;\n *   });\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Any unspecified options will use the default value. You can see the default values below.\n * </div>\n *\n * Therefore the above can be simplified as:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       link: function postLink(scope, iElement, iAttrs) { ... }\n *     };\n *     return directiveDefinitionObject;\n *     // or\n *     // return function postLink(scope, iElement, iAttrs) { ... }\n *   });\n * ```\n *\n *\n *\n * ### Directive Definition Object\n *\n * The directive definition object provides instructions to the {@link ng.$compile\n * compiler}. The attributes are:\n *\n * #### `priority`\n * When there are multiple directives defined on a single DOM element, sometimes it\n * is necessary to specify the order in which the directives are applied. The `priority` is used\n * to sort the directives before their `compile` functions get called. Priority is defined as a\n * number. Directives with greater numerical `priority` are compiled first. Pre-link functions\n * are also run in priority order, but post-link functions are run in reverse order. The order\n * of directives with the same priority is undefined. The default priority is `0`.\n *\n * #### `terminal`\n * If set to true then the current `priority` will be the last set of directives\n * which will execute (any directives at the current priority will still execute\n * as the order of execution on same `priority` is undefined).\n *\n * #### `scope`\n * **If set to `true`,** then a new scope will be created for this directive. If multiple directives on the\n * same element request a new scope, only one new scope is created. The new scope rule does not\n * apply for the root of the template since the root of the template always gets a new scope.\n *\n * **If set to `{}` (object hash),** then a new \"isolate\" scope is created. The 'isolate' scope differs from\n * normal scope in that it does not prototypically inherit from the parent scope. This is useful\n * when creating reusable components, which should not accidentally read or modify data in the\n * parent scope.\n *\n * The 'isolate' scope takes an object hash which defines a set of local scope properties\n * derived from the parent scope. These local properties are useful for aliasing values for\n * templates. Locals definition is a hash of local scope property to its source:\n *\n * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is\n *   always a string since DOM attributes are strings. If no `attr` name is specified  then the\n *   attribute name is assumed to be the same as the local name.\n *   Given `<widget my-attr=\"hello {{name}}\">` and widget definition\n *   of `scope: { localName:'@myAttr' }`, then widget scope property `localName` will reflect\n *   the interpolated value of `hello {{name}}`. As the `name` attribute changes so will the\n *   `localName` property on the widget scope. The `name` is read from the parent scope (not\n *   component scope).\n *\n * * `=` or `=attr` - set up bi-directional binding between a local scope property and the\n *   parent scope property of name defined via the value of the `attr` attribute. If no `attr`\n *   name is specified then the attribute name is assumed to be the same as the local name.\n *   Given `<widget my-attr=\"parentModel\">` and widget definition of\n *   `scope: { localModel:'=myAttr' }`, then widget scope property `localModel` will reflect the\n *   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected\n *   in `localModel` and any changes in `localModel` will reflect in `parentModel`. If the parent\n *   scope property doesn't exist, it will throw a NON_ASSIGNABLE_MODEL_EXPRESSION exception. You\n *   can avoid this behavior using `=?` or `=?attr` in order to flag the property as optional.\n *\n * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope.\n *   If no `attr` name is specified then the attribute name is assumed to be the same as the\n *   local name. Given `<widget my-attr=\"count = count + value\">` and widget definition of\n *   `scope: { localFn:'&myAttr' }`, then isolate scope property `localFn` will point to\n *   a function wrapper for the `count = count + value` expression. Often it's desirable to\n *   pass data from the isolated scope via an expression to the parent scope, this can be\n *   done by passing a map of local variable names and values into the expression wrapper fn.\n *   For example, if the expression is `increment(amount)` then we can specify the amount value\n *   by calling the `localFn` as `localFn({amount: 22})`.\n *\n *\n *\n * #### `controller`\n * Controller constructor function. The controller is instantiated before the\n * pre-linking phase and it is shared with other directives (see\n * `require` attribute). This allows the directives to communicate with each other and augment\n * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:\n *\n * * `$scope` - Current scope associated with the element\n * * `$element` - Current element\n * * `$attrs` - Current attributes object for the element\n * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope.\n *    The scope can be overridden by an optional first argument.\n *   `function([scope], cloneLinkingFn)`.\n *\n *\n * #### `require`\n * Require another directive and inject its controller as the fourth argument to the linking function. The\n * `require` takes a string name (or array of strings) of the directive(s) to pass in. If an array is used, the\n * injected argument will be an array in corresponding order. If no such directive can be\n * found, or if the directive does not have a controller, then an error is raised. The name can be prefixed with:\n *\n * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.\n * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.\n * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.\n * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass\n *   `null` to the `link` fn if not found.\n *\n *\n * #### `controllerAs`\n * Controller alias at the directive scope. An alias for the controller so it\n * can be referenced at the directive template. The directive needs to define a scope for this\n * configuration to be used. Useful in the case when directive is used as component.\n *\n *\n * #### `restrict`\n * String of subset of `EACM` which restricts the directive to a specific directive\n * declaration style. If omitted, the default (attributes only) is used.\n *\n * * `E` - Element name: `<my-directive></my-directive>`\n * * `A` - Attribute (default): `<div my-directive=\"exp\"></div>`\n * * `C` - Class: `<div class=\"my-directive: exp;\"></div>`\n * * `M` - Comment: `<!-- directive: my-directive exp -->`\n *\n *\n * #### `template`\n * HTML markup that may:\n * * Replace the contents of the directive's element (default).\n * * Replace the directive's element itself (if `replace` is true - DEPRECATED).\n * * Wrap the contents of the directive's element (if `transclude` is true).\n *\n * Value may be:\n *\n * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.\n * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`\n *   function api below) and returns a string value.\n *\n *\n * #### `templateUrl`\n * Same as `template` but the template is loaded from the specified URL. Because\n * the template loading is asynchronous the compilation/linking is suspended until the template\n * is loaded.\n *\n * You can specify `templateUrl` as a string representing the URL or as a function which takes two\n * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns\n * a string value representing the url.  In either case, the template URL is passed through {@link\n * api/ng.$sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.\n *\n *\n * #### `replace` ([*DEPRECATED*!], will be removed in next major release)\n * specify what the template should replace. Defaults to `false`.\n *\n * * `true` - the template will replace the directive's element.\n * * `false` - the template will replace the contents of the directive's element.\n *\n * The replacement process migrates all of the attributes / classes from the old element to the new\n * one. See the {@link guide/directive#creating-custom-directives_creating-directives_template-expanding-directive\n * Directives Guide} for an example.\n *\n * #### `transclude`\n * compile the content of the element and make it available to the directive.\n * Typically used with {@link ng.directive:ngTransclude\n * ngTransclude}. The advantage of transclusion is that the linking function receives a\n * transclusion function which is pre-bound to the correct scope. In a typical setup the widget\n * creates an `isolate` scope, but the transclusion is not a child, but a sibling of the `isolate`\n * scope. This makes it possible for the widget to have private state, and the transclusion to\n * be bound to the parent (pre-`isolate`) scope.\n *\n * There are two kinds of transclusion depending upon whether you want to transclude just the contents of the\n * directive's element or the entire element:\n *\n * * `true` - transclude the content (i.e. the child nodes) of the directive's element.\n * * `'element'` - transclude the whole of the directive's element including any directives on this\n *   element that defined at a lower priority than this directive. When used, the `template`\n *   property is ignored.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** When testing an element transclude directive you must not place the directive at the root of the\n * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives\n * Testing Transclusion Directives}.\n * </div>\n *\n * #### `compile`\n *\n * ```js\n *   function compile(tElement, tAttrs, transclude) { ... }\n * ```\n *\n * The compile function deals with transforming the template DOM. Since most directives do not do\n * template transformation, it is not used often. The compile function takes the following arguments:\n *\n *   * `tElement` - template element - The element where the directive has been declared. It is\n *     safe to do template transformation on the element and child elements only.\n *\n *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared\n *     between all directive compile functions.\n *\n *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`\n *\n * <div class=\"alert alert-warning\">\n * **Note:** The template instance and the link instance may be different objects if the template has\n * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that\n * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration\n * should be done in a linking function rather than in a compile function.\n * </div>\n\n * <div class=\"alert alert-warning\">\n * **Note:** The compile function cannot handle directives that recursively use themselves in their\n * own templates or compile functions. Compiling these directives results in an infinite loop and a\n * stack overflow errors.\n *\n * This can be avoided by manually using $compile in the postLink function to imperatively compile\n * a directive's template instead of relying on automatic template compilation via `template` or\n * `templateUrl` declaration or manual compilation inside the compile function.\n * </div>\n *\n * <div class=\"alert alert-error\">\n * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it\n *   e.g. does not know about the right outer scope. Please use the transclude function that is passed\n *   to the link function instead.\n * </div>\n\n * A compile function can have a return value which can be either a function or an object.\n *\n * * returning a (post-link) function - is equivalent to registering the linking function via the\n *   `link` property of the config object when the compile function is empty.\n *\n * * returning an object with function(s) registered via `pre` and `post` properties - allows you to\n *   control when a linking function should be called during the linking phase. See info about\n *   pre-linking and post-linking functions below.\n *\n *\n * #### `link`\n * This property is used only if the `compile` property is not defined.\n *\n * ```js\n *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }\n * ```\n *\n * The link function is responsible for registering DOM listeners as well as updating the DOM. It is\n * executed after the template has been cloned. This is where most of the directive logic will be\n * put.\n *\n *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the\n *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.\n *\n *   * `iElement` - instance element - The element where the directive is to be used. It is safe to\n *     manipulate the children of the element only in `postLink` function since the children have\n *     already been linked.\n *\n *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared\n *     between all directive linking functions.\n *\n *   * `controller` - a controller instance - A controller instance if at least one directive on the\n *     element defines a controller. The controller is shared among all the directives, which allows\n *     the directives to use the controllers as a communication channel.\n *\n *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.\n *     The scope can be overridden by an optional first argument. This is the same as the `$transclude`\n *     parameter of directive controllers.\n *     `function([scope], cloneLinkingFn)`.\n *\n *\n * #### Pre-linking function\n *\n * Executed before the child elements are linked. Not safe to do DOM transformation since the\n * compiler linking function will fail to locate the correct elements for linking.\n *\n * #### Post-linking function\n *\n * Executed after the child elements are linked. It is safe to do DOM transformation in the post-linking function.\n *\n * <a name=\"Attributes\"></a>\n * ### Attributes\n *\n * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the\n * `link()` or `compile()` functions. It has a variety of uses.\n *\n * accessing *Normalized attribute names:*\n * Directives like 'ngBind' can be expressed in many ways: 'ng:bind', `data-ng-bind`, or 'x-ng-bind'.\n * the attributes object allows for normalized access to\n *   the attributes.\n *\n * * *Directive inter-communication:* All directives share the same instance of the attributes\n *   object which allows the directives to use the attributes object as inter directive\n *   communication.\n *\n * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object\n *   allowing other directives to read the interpolated value.\n *\n * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes\n *   that contain interpolation (e.g. `src=\"{{bar}}\"`). Not only is this very efficient but it's also\n *   the only way to easily get the actual value because during the linking phase the interpolation\n *   hasn't been evaluated yet and so the value is at this time set to `undefined`.\n *\n * ```js\n * function linkingFn(scope, elm, attrs, ctrl) {\n *   // get the attribute value\n *   console.log(attrs.ngModel);\n *\n *   // change the attribute\n *   attrs.$set('ngModel', 'new value');\n *\n *   // observe changes to interpolated attribute\n *   attrs.$observe('ngModel', function(value) {\n *     console.log('ngModel has changed value to ' + value);\n *   });\n * }\n * ```\n *\n * ## Example\n *\n * <div class=\"alert alert-warning\">\n * **Note**: Typically directives are registered with `module.directive`. The example below is\n * to illustrate how `$compile` works.\n * </div>\n *\n <example module=\"compileExample\">\n   <file name=\"index.html\">\n    <script>\n      angular.module('compileExample', [], function($compileProvider) {\n        // configure new 'compile' directive by passing a directive\n        // factory function. The factory function injects the '$compile'\n        $compileProvider.directive('compile', function($compile) {\n          // directive factory creates a link function\n          return function(scope, element, attrs) {\n            scope.$watch(\n              function(scope) {\n                 // watch the 'compile' expression for changes\n                return scope.$eval(attrs.compile);\n              },\n              function(value) {\n                // when the 'compile' expression changes\n                // assign it into the current DOM\n                element.html(value);\n\n                // compile the new DOM and link it to the current\n                // scope.\n                // NOTE: we only compile .childNodes so that\n                // we don't get into infinite loop compiling ourselves\n                $compile(element.contents())(scope);\n              }\n            );\n          };\n        });\n      })\n      .controller('GreeterController', ['$scope', function($scope) {\n        $scope.name = 'Angular';\n        $scope.html = 'Hello {{name}}';\n      }]);\n    </script>\n    <div ng-controller=\"GreeterController\">\n      <input ng-model=\"name\"> <br>\n      <textarea ng-model=\"html\"></textarea> <br>\n      <div compile=\"html\"></div>\n    </div>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n     it('should auto compile', function() {\n       var textarea = $('textarea');\n       var output = $('div[compile]');\n       // The initial state reads 'Hello Angular'.\n       expect(output.getText()).toBe('Hello Angular');\n       textarea.clear();\n       textarea.sendKeys('{{name}}!');\n       expect(output.getText()).toBe('Angular!');\n     });\n   </file>\n </example>\n\n *\n *\n * @param {string|DOMElement} element Element or HTML string to compile into a template function.\n * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives.\n * @param {number} maxPriority only apply directives lower than given priority (Only effects the\n *                 root element(s), not their children)\n * @returns {function(scope, cloneAttachFn=)} a link function which is used to bind template\n * (a DOM element/tree) to a scope. Where:\n *\n *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.\n *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the\n *  `template` and call the `cloneAttachFn` function allowing the caller to attach the\n *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is\n *  called as: <br> `cloneAttachFn(clonedElement, scope)` where:\n *\n *      * `clonedElement` - is a clone of the original `element` passed into the compiler.\n *      * `scope` - is the current scope with which the linking function is working with.\n *\n * Calling the linking function returns the element of the template. It is either the original\n * element passed in, or the clone of the element if the `cloneAttachFn` is provided.\n *\n * After linking the view is not updated until after a call to $digest which typically is done by\n * Angular automatically.\n *\n * If you need access to the bound view, there are two ways to do it:\n *\n * - If you are not asking the linking function to clone the template, create the DOM element(s)\n *   before you send them to the compiler and keep this reference around.\n *   ```js\n *     var element = $compile('<p>{{total}}</p>')(scope);\n *   ```\n *\n * - if on the other hand, you need the element to be cloned, the view reference from the original\n *   example would not point to the clone, but rather to the original template that was cloned. In\n *   this case, you can access the clone via the cloneAttachFn:\n *   ```js\n *     var templateElement = angular.element('<p>{{total}}</p>'),\n *         scope = ....;\n *\n *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {\n *       //attach the clone to DOM document at the right place\n *     });\n *\n *     //now we have reference to the cloned DOM via `clonedElement`\n *   ```\n *\n *\n * For information on how the compiler works, see the\n * {@link guide/compiler Angular HTML Compiler} section of the Developer Guide.\n */\n\nvar $compileMinErr = minErr('$compile');\n\n/**\n * @ngdoc provider\n * @name $compileProvider\n * @kind function\n *\n * @description\n */\n$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];\nfunction $CompileProvider($provide, $$sanitizeUriProvider) {\n  var hasDirectives = {},\n      Suffix = 'Directive',\n      COMMENT_DIRECTIVE_REGEXP = /^\\s*directive\\:\\s*([\\d\\w_\\-]+)\\s+(.*)$/,\n      CLASS_DIRECTIVE_REGEXP = /(([\\d\\w_\\-]+)(?:\\:([^;]+))?;?)/;\n\n  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes\n  // The assumption is that future DOM event attribute names will begin with\n  // 'on' and be composed of only English letters.\n  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#directive\n   * @kind function\n   *\n   * @description\n   * Register a new directive with the compiler.\n   *\n   * @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which\n   *    will match as <code>ng-bind</code>), or an object map of directives where the keys are the\n   *    names and the values are the factories.\n   * @param {Function|Array} directiveFactory An injectable directive factory function. See\n   *    {@link guide/directive} for more info.\n   * @returns {ng.$compileProvider} Self for chaining.\n   */\n   this.directive = function registerDirective(name, directiveFactory) {\n    assertNotHasOwnProperty(name, 'directive');\n    if (isString(name)) {\n      assertArg(directiveFactory, 'directiveFactory');\n      if (!hasDirectives.hasOwnProperty(name)) {\n        hasDirectives[name] = [];\n        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',\n          function($injector, $exceptionHandler) {\n            var directives = [];\n            forEach(hasDirectives[name], function(directiveFactory, index) {\n              try {\n                var directive = $injector.invoke(directiveFactory);\n                if (isFunction(directive)) {\n                  directive = { compile: valueFn(directive) };\n                } else if (!directive.compile && directive.link) {\n                  directive.compile = valueFn(directive.link);\n                }\n                directive.priority = directive.priority || 0;\n                directive.index = index;\n                directive.name = directive.name || name;\n                directive.require = directive.require || (directive.controller && directive.name);\n                directive.restrict = directive.restrict || 'A';\n                directives.push(directive);\n              } catch (e) {\n                $exceptionHandler(e);\n              }\n            });\n            return directives;\n          }]);\n      }\n      hasDirectives[name].push(directiveFactory);\n    } else {\n      forEach(name, reverseParams(registerDirective));\n    }\n    return this;\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.aHrefSanitizationWhitelist();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();\n    }\n  };\n\n  this.$get = [\n            '$injector', '$interpolate', '$exceptionHandler', '$http', '$templateCache', '$parse',\n            '$controller', '$rootScope', '$document', '$sce', '$animate', '$$sanitizeUri',\n    function($injector,   $interpolate,   $exceptionHandler,   $http,   $templateCache,   $parse,\n             $controller,   $rootScope,   $document,   $sce,   $animate,   $$sanitizeUri) {\n\n    var Attributes = function(element, attr) {\n      this.$$element = element;\n      this.$attr = attr || {};\n    };\n\n    Attributes.prototype = {\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$normalize\n       * @kind function\n       *\n       * @description\n       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or\n       * `data-`) to its normalized, camelCase form.\n       *\n       * Also there is special case for Moz prefix starting with upper case letter.\n       *\n       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n       *\n       * @param {string} name Name to normalize\n       */\n      $normalize: directiveNormalize,\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$addClass\n       * @kind function\n       *\n       * @description\n       * Adds the CSS class value specified by the classVal parameter to the element. If animations\n       * are enabled then an animation will be triggered for the class addition.\n       *\n       * @param {string} classVal The className value that will be added to the element\n       */\n      $addClass : function(classVal) {\n        if(classVal && classVal.length > 0) {\n          $animate.addClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$removeClass\n       * @kind function\n       *\n       * @description\n       * Removes the CSS class value specified by the classVal parameter from the element. If\n       * animations are enabled then an animation will be triggered for the class removal.\n       *\n       * @param {string} classVal The className value that will be removed from the element\n       */\n      $removeClass : function(classVal) {\n        if(classVal && classVal.length > 0) {\n          $animate.removeClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$updateClass\n       * @kind function\n       *\n       * @description\n       * Adds and removes the appropriate CSS class values to the element based on the difference\n       * between the new and old CSS class values (specified as newClasses and oldClasses).\n       *\n       * @param {string} newClasses The current CSS className value\n       * @param {string} oldClasses The former CSS className value\n       */\n      $updateClass : function(newClasses, oldClasses) {\n        var toAdd = tokenDifference(newClasses, oldClasses);\n        var toRemove = tokenDifference(oldClasses, newClasses);\n\n        if(toAdd.length === 0) {\n          $animate.removeClass(this.$$element, toRemove);\n        } else if(toRemove.length === 0) {\n          $animate.addClass(this.$$element, toAdd);\n        } else {\n          $animate.setClass(this.$$element, toAdd, toRemove);\n        }\n      },\n\n      /**\n       * Set a normalized attribute on the element in a way such that all directives\n       * can share the attribute. This function properly handles boolean attributes.\n       * @param {string} key Normalized key. (ie ngAttribute)\n       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.\n       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.\n       *     Defaults to true.\n       * @param {string=} attrName Optional none normalized name. Defaults to key.\n       */\n      $set: function(key, value, writeAttr, attrName) {\n        // TODO: decide whether or not to throw an error if \"class\"\n        //is set through this function since it may cause $updateClass to\n        //become unstable.\n\n        var booleanKey = getBooleanAttrName(this.$$element[0], key),\n            normalizedVal,\n            nodeName;\n\n        if (booleanKey) {\n          this.$$element.prop(key, value);\n          attrName = booleanKey;\n        }\n\n        this[key] = value;\n\n        // translate normalized key to actual key\n        if (attrName) {\n          this.$attr[key] = attrName;\n        } else {\n          attrName = this.$attr[key];\n          if (!attrName) {\n            this.$attr[key] = attrName = snake_case(key, '-');\n          }\n        }\n\n        // SVG elements' `nodeName` can be lowercase\n        nodeName = nodeName_(this.$$element).toUpperCase();\n\n        // sanitize a[href] and img[src] values\n        if ((nodeName === 'A' && (key === 'href' || key === 'xlinkHref')) ||\n            (nodeName === 'IMG' && key === 'src')) {\n          this[key] = value = $$sanitizeUri(value, key === 'src');\n        }\n\n        if (writeAttr !== false) {\n          if (value === null || value === undefined) {\n            this.$$element.removeAttr(attrName);\n          } else {\n            this.$$element.attr(attrName, value);\n          }\n        }\n\n        // fire observers\n        var $$observers = this.$$observers;\n        $$observers && forEach($$observers[key], function(fn) {\n          try {\n            fn(value);\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        });\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$observe\n       * @kind function\n       *\n       * @description\n       * Observes an interpolated attribute.\n       *\n       * The observer function will be invoked once during the next `$digest` following\n       * compilation. The observer is then invoked whenever the interpolated value\n       * changes.\n       *\n       * @param {string} key Normalized key. (ie ngAttribute) .\n       * @param {function(interpolatedValue)} fn Function that will be called whenever\n                the interpolated value of the attribute changes.\n       *        See the {@link guide/directive#Attributes Directives} guide for more info.\n       * @returns {function()} the `fn` parameter.\n       */\n      $observe: function(key, fn) {\n        var attrs = this,\n            $$observers = (attrs.$$observers || (attrs.$$observers = {})),\n            listeners = ($$observers[key] || ($$observers[key] = []));\n\n        listeners.push(fn);\n        $rootScope.$evalAsync(function() {\n          if (!listeners.$$inter) {\n            // no one registered attribute interpolation function, so lets call it manually\n            fn(attrs[key]);\n          }\n        });\n        return fn;\n      }\n    };\n\n    var startSymbol = $interpolate.startSymbol(),\n        endSymbol = $interpolate.endSymbol(),\n        denormalizeTemplate = (startSymbol == '{{' || endSymbol  == '}}')\n            ? identity\n            : function denormalizeTemplate(template) {\n              return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n        },\n        NG_ATTR_BINDING = /^ngAttr[A-Z]/;\n\n\n    return compile;\n\n    //================================\n\n    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,\n                        previousCompileContext) {\n      if (!($compileNodes instanceof jqLite)) {\n        // jquery always rewraps, whereas we need to preserve the original selector so that we can\n        // modify it.\n        $compileNodes = jqLite($compileNodes);\n      }\n      // We can not compile top level text elements since text nodes can be merged and we will\n      // not be able to attach scope data to them, so we will wrap them in <span>\n      forEach($compileNodes, function(node, index){\n        if (node.nodeType == 3 /* text node */ && node.nodeValue.match(/\\S+/) /* non-empty */ ) {\n          $compileNodes[index] = node = jqLite(node).wrap('<span></span>').parent()[0];\n        }\n      });\n      var compositeLinkFn =\n              compileNodes($compileNodes, transcludeFn, $compileNodes,\n                           maxPriority, ignoreDirective, previousCompileContext);\n      safeAddClass($compileNodes, 'ng-scope');\n      return function publicLinkFn(scope, cloneConnectFn, transcludeControllers, parentBoundTranscludeFn){\n        assertArg(scope, 'scope');\n        // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n        // and sometimes changes the structure of the DOM.\n        var $linkNode = cloneConnectFn\n          ? JQLitePrototype.clone.call($compileNodes) // IMPORTANT!!!\n          : $compileNodes;\n\n        forEach(transcludeControllers, function(instance, name) {\n          $linkNode.data('$' + name + 'Controller', instance);\n        });\n\n        // Attach scope only to non-text nodes.\n        for(var i = 0, ii = $linkNode.length; i<ii; i++) {\n          var node = $linkNode[i],\n              nodeType = node.nodeType;\n          if (nodeType === 1 /* element */ || nodeType === 9 /* document */) {\n            $linkNode.eq(i).data('$scope', scope);\n          }\n        }\n\n        if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n        return $linkNode;\n      };\n    }\n\n    function safeAddClass($element, className) {\n      try {\n        $element.addClass(className);\n      } catch(e) {\n        // ignore, since it means that we are trying to set class on\n        // SVG element, where class name is read-only.\n      }\n    }\n\n    /**\n     * Compile function matches each node in nodeList against the directives. Once all directives\n     * for a particular node are collected their compile functions are executed. The compile\n     * functions return values - the linking functions - are combined into a composite linking\n     * function, which is the a linking function for the node.\n     *\n     * @param {NodeList} nodeList an array of nodes or NodeList to compile\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *        scope argument is auto-generated to the new child of the transcluded parent scope.\n     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n     *        the rootElement must be set the jqLite collection of the compile root. This is\n     *        needed so that the jqLite collection items can be replaced with widgets.\n     * @param {number=} maxPriority Max directive priority.\n     * @returns {Function} A composite linking function of all of the matched directives or null.\n     */\n    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n                            previousCompileContext) {\n      var linkFns = [],\n          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound;\n\n      for (var i = 0; i < nodeList.length; i++) {\n        attrs = new Attributes();\n\n        // we must always refer to nodeList[i] since the nodes can be replaced underneath us.\n        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n                                        ignoreDirective);\n\n        nodeLinkFn = (directives.length)\n            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n                                      null, [], [], previousCompileContext)\n            : null;\n\n        if (nodeLinkFn && nodeLinkFn.scope) {\n          safeAddClass(attrs.$$element, 'ng-scope');\n        }\n\n        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n                      !(childNodes = nodeList[i].childNodes) ||\n                      !childNodes.length)\n            ? null\n            : compileNodes(childNodes,\n                 nodeLinkFn ? (\n                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n                     && nodeLinkFn.transclude) : transcludeFn);\n\n        linkFns.push(nodeLinkFn, childLinkFn);\n        linkFnFound = linkFnFound || nodeLinkFn || childLinkFn;\n        //use the previous context only for the first element in the virtual group\n        previousCompileContext = null;\n      }\n\n      // return a linking function if we have found anything, null otherwise\n      return linkFnFound ? compositeLinkFn : null;\n\n      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n        var nodeLinkFn, childLinkFn, node, childScope, i, ii, n, childBoundTranscludeFn;\n\n        // copy nodeList so that linking doesn't break due to live list updates.\n        var nodeListLength = nodeList.length,\n            stableNodeList = new Array(nodeListLength);\n        for (i = 0; i < nodeListLength; i++) {\n          stableNodeList[i] = nodeList[i];\n        }\n\n        for(i = 0, n = 0, ii = linkFns.length; i < ii; n++) {\n          node = stableNodeList[n];\n          nodeLinkFn = linkFns[i++];\n          childLinkFn = linkFns[i++];\n\n          if (nodeLinkFn) {\n            if (nodeLinkFn.scope) {\n              childScope = scope.$new();\n              jqLite.data(node, '$scope', childScope);\n            } else {\n              childScope = scope;\n            }\n\n            if ( nodeLinkFn.transcludeOnThisElement ) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, nodeLinkFn.transclude, parentBoundTranscludeFn);\n\n            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n              childBoundTranscludeFn = parentBoundTranscludeFn;\n\n            } else if (!parentBoundTranscludeFn && transcludeFn) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n            } else {\n              childBoundTranscludeFn = null;\n            }\n\n            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n          } else if (childLinkFn) {\n            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n          }\n        }\n      }\n    }\n\n    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) {\n\n      var boundTranscludeFn = function(transcludedScope, cloneFn, controllers) {\n        var scopeCreated = false;\n\n        if (!transcludedScope) {\n          transcludedScope = scope.$new();\n          transcludedScope.$$transcluded = true;\n          scopeCreated = true;\n        }\n\n        var clone = transcludeFn(transcludedScope, cloneFn, controllers, previousBoundTranscludeFn);\n        if (scopeCreated) {\n          clone.on('$destroy', function() { transcludedScope.$destroy(); });\n        }\n        return clone;\n      };\n\n      return boundTranscludeFn;\n    }\n\n    /**\n     * Looks for directives on the given node and adds them to the directive collection which is\n     * sorted.\n     *\n     * @param node Node to search.\n     * @param directives An array to which the directives are added to. This array is sorted before\n     *        the function returns.\n     * @param attrs The shared attrs object which is used to populate the normalized attributes.\n     * @param {number=} maxPriority Max directive priority.\n     */\n    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      var nodeType = node.nodeType,\n          attrsMap = attrs.$attr,\n          match,\n          nodeName,\n          className;\n\n      switch(nodeType) {\n        case 1: /* Element */\n\n          nodeName = nodeName_(node).toLowerCase();\n\n          // use the node name: <directive>\n          addDirective(directives,\n              directiveNormalize(nodeName), 'E', maxPriority, ignoreDirective);\n\n          // iterate over the attributes\n          for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,\n                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n            var attrStartName = false;\n            var attrEndName = false;\n\n            attr = nAttrs[j];\n            if (!msie || msie >= 8 || attr.specified) {\n              name = attr.name;\n              value = trim(attr.value);\n\n              // support ngAttr attribute binding\n              ngAttrName = directiveNormalize(name);\n              if (isNgAttr = NG_ATTR_BINDING.test(ngAttrName)) {\n                name = snake_case(ngAttrName.substr(6), '-');\n              }\n\n              var directiveNName = ngAttrName.replace(/(Start|End)$/, '');\n              if (ngAttrName === directiveNName + 'Start') {\n                attrStartName = name;\n                attrEndName = name.substr(0, name.length - 5) + 'end';\n                name = name.substr(0, name.length - 6);\n              }\n\n              nName = directiveNormalize(name.toLowerCase());\n              attrsMap[nName] = name;\n              if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n                  attrs[nName] = value;\n                  if (getBooleanAttrName(node, nName)) {\n                    attrs[nName] = true; // presence means true\n                  }\n              }\n              addAttrInterpolateDirective(node, directives, value, nName);\n              addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n                            attrEndName);\n            }\n          }\n\n          if (nodeName === 'input' && node.getAttribute('type') === 'hidden') {\n            // Hidden input elements can have strange behaviour when navigating back to the page\n            // This tells the browser not to try to cache and reinstate previous values\n            node.setAttribute('autocomplete', 'off');\n          }\n\n          // use class as directive\n          className = node.className;\n          if (isString(className) && className !== '') {\n            while (match = CLASS_DIRECTIVE_REGEXP.exec(className)) {\n              nName = directiveNormalize(match[2]);\n              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[3]);\n              }\n              className = className.substr(match.index + match[0].length);\n            }\n          }\n          break;\n        case 3: /* Text Node */\n          if (msie === 11) {\n            // Workaround for #11781\n            while (node.parentNode && node.nextSibling && node.nextSibling.nodeType === 3 /* Text Node */) {\n              node.nodeValue = node.nodeValue + node.nextSibling.nodeValue;\n              node.parentNode.removeChild(node.nextSibling);\n            }\n          }\n          addTextInterpolateDirective(directives, node.nodeValue);\n          break;\n        case 8: /* Comment */\n          try {\n            match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n            if (match) {\n              nName = directiveNormalize(match[1]);\n              if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[2]);\n              }\n            }\n          } catch (e) {\n            // turns out that under some circumstances IE9 throws errors when one attempts to read\n            // comment's node value.\n            // Just ignore it and continue. (Can't seem to reproduce in test case.)\n          }\n          break;\n      }\n\n      directives.sort(byPriority);\n      return directives;\n    }\n\n    /**\n     * Given a node with an directive-start it collects all of the siblings until it finds\n     * directive-end.\n     * @param node\n     * @param attrStart\n     * @param attrEnd\n     * @returns {*}\n     */\n    function groupScan(node, attrStart, attrEnd) {\n      var nodes = [];\n      var depth = 0;\n      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n        var startNode = node;\n        do {\n          if (!node) {\n            throw $compileMinErr('uterdir',\n                      \"Unterminated attribute, found '{0}' but no matching '{1}' found.\",\n                      attrStart, attrEnd);\n          }\n          if (node.nodeType == 1 /** Element **/) {\n            if (node.hasAttribute(attrStart)) depth++;\n            if (node.hasAttribute(attrEnd)) depth--;\n          }\n          nodes.push(node);\n          node = node.nextSibling;\n        } while (depth > 0);\n      } else {\n        nodes.push(node);\n      }\n\n      return jqLite(nodes);\n    }\n\n    /**\n     * Wrapper for linking function which converts normal linking function into a grouped\n     * linking function.\n     * @param linkFn\n     * @param attrStart\n     * @param attrEnd\n     * @returns {Function}\n     */\n    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n      return function(scope, element, attrs, controllers, transcludeFn) {\n        element = groupScan(element[0], attrStart, attrEnd);\n        return linkFn(scope, element, attrs, controllers, transcludeFn);\n      };\n    }\n\n    /**\n     * Once the directives have been collected, their compile functions are executed. This method\n     * is responsible for inlining directive templates as well as terminating the application\n     * of the directives if the terminal directive has been reached.\n     *\n     * @param {Array} directives Array of collected directives to execute their compile function.\n     *        this needs to be pre-sorted by priority order.\n     * @param {Node} compileNode The raw DOM node to apply the compile functions to\n     * @param {Object} templateAttrs The shared attribute function\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *                                                  scope argument is auto-generated to the new\n     *                                                  child of the transcluded parent scope.\n     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n     *                              argument has the root jqLite array so that we can replace nodes\n     *                              on it.\n     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n     *                                           compiling the transclusion.\n     * @param {Array.<Function>} preLinkFns\n     * @param {Array.<Function>} postLinkFns\n     * @param {Object} previousCompileContext Context used for previous compilation of the current\n     *                                        node\n     * @returns {Function} linkFn\n     */\n    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n                                   previousCompileContext) {\n      previousCompileContext = previousCompileContext || {};\n\n      var terminalPriority = -Number.MAX_VALUE,\n          newScopeDirective,\n          controllerDirectives = previousCompileContext.controllerDirectives,\n          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n          templateDirective = previousCompileContext.templateDirective,\n          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n          hasTranscludeDirective = false,\n          hasTemplate = false,\n          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n          $compileNode = templateAttrs.$$element = jqLite(compileNode),\n          directive,\n          directiveName,\n          $template,\n          replaceDirective = originalReplaceDirective,\n          childTranscludeFn = transcludeFn,\n          linkFn,\n          directiveValue;\n\n      // executes all directives on the current element\n      for(var i = 0, ii = directives.length; i < ii; i++) {\n        directive = directives[i];\n        var attrStart = directive.$$start;\n        var attrEnd = directive.$$end;\n\n        // collect multiblock sections\n        if (attrStart) {\n          $compileNode = groupScan(compileNode, attrStart, attrEnd);\n        }\n        $template = undefined;\n\n        if (terminalPriority > directive.priority) {\n          break; // prevent further processing of directives\n        }\n\n        if (directiveValue = directive.scope) {\n          newScopeDirective = newScopeDirective || directive;\n\n          // skip the check for directives with async templates, we'll check the derived sync\n          // directive when the template arrives\n          if (!directive.templateUrl) {\n            assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n                              $compileNode);\n            if (isObject(directiveValue)) {\n              newIsolateScopeDirective = directive;\n            }\n          }\n        }\n\n        directiveName = directive.name;\n\n        if (!directive.templateUrl && directive.controller) {\n          directiveValue = directive.controller;\n          controllerDirectives = controllerDirectives || {};\n          assertNoDuplicate(\"'\" + directiveName + \"' controller\",\n              controllerDirectives[directiveName], directive, $compileNode);\n          controllerDirectives[directiveName] = directive;\n        }\n\n        if (directiveValue = directive.transclude) {\n          hasTranscludeDirective = true;\n\n          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n          // This option should only be used by directives that know how to safely handle element transclusion,\n          // where the transcluded nodes are added or replaced after linking.\n          if (!directive.$$tlb) {\n            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n            nonTlbTranscludeDirective = directive;\n          }\n\n          if (directiveValue == 'element') {\n            hasElementTranscludeDirective = true;\n            terminalPriority = directive.priority;\n            $template = $compileNode;\n            $compileNode = templateAttrs.$$element =\n                jqLite(document.createComment(' ' + directiveName + ': ' +\n                                              templateAttrs[directiveName] + ' '));\n            compileNode = $compileNode[0];\n            replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n            childTranscludeFn = compile($template, transcludeFn, terminalPriority,\n                                        replaceDirective && replaceDirective.name, {\n                                          // Don't pass in:\n                                          // - controllerDirectives - otherwise we'll create duplicates controllers\n                                          // - newIsolateScopeDirective or templateDirective - combining templates with\n                                          //   element transclusion doesn't make sense.\n                                          //\n                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n                                          // on the same element more than once.\n                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective\n                                        });\n          } else {\n            $template = jqLite(jqLiteClone(compileNode)).contents();\n            $compileNode.empty(); // clear contents\n            childTranscludeFn = compile($template, transcludeFn);\n          }\n        }\n\n        if (directive.template) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          directiveValue = (isFunction(directive.template))\n              ? directive.template($compileNode, templateAttrs)\n              : directive.template;\n\n          directiveValue = denormalizeTemplate(directiveValue);\n\n          if (directive.replace) {\n            replaceDirective = directive;\n            if (jqLiteIsTextNode(directiveValue)) {\n              $template = [];\n            } else {\n              $template = jqLite(trim(directiveValue));\n            }\n            compileNode = $template[0];\n\n            if ($template.length != 1 || compileNode.nodeType !== 1) {\n              throw $compileMinErr('tplrt',\n                  \"Template for directive '{0}' must have exactly one root element. {1}\",\n                  directiveName, '');\n            }\n\n            replaceWith(jqCollection, $compileNode, compileNode);\n\n            var newTemplateAttrs = {$attr: {}};\n\n            // combine directives from the original node and from the template:\n            // - take the array of directives for this element\n            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n            // - collect directives from the template and sort them by priority\n            // - combine directives as: processed + template + unprocessed\n            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n            if (newIsolateScopeDirective) {\n              markDirectivesAsIsolate(templateDirectives);\n            }\n            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n            ii = directives.length;\n          } else {\n            $compileNode.html(directiveValue);\n          }\n        }\n\n        if (directive.templateUrl) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          if (directive.replace) {\n            replaceDirective = directive;\n          }\n\n          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n                controllerDirectives: controllerDirectives,\n                newIsolateScopeDirective: newIsolateScopeDirective,\n                templateDirective: templateDirective,\n                nonTlbTranscludeDirective: nonTlbTranscludeDirective\n              });\n          ii = directives.length;\n        } else if (directive.compile) {\n          try {\n            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n            if (isFunction(linkFn)) {\n              addLinkFns(null, linkFn, attrStart, attrEnd);\n            } else if (linkFn) {\n              addLinkFns(linkFn.pre, linkFn.post, attrStart, attrEnd);\n            }\n          } catch (e) {\n            $exceptionHandler(e, startingTag($compileNode));\n          }\n        }\n\n        if (directive.terminal) {\n          nodeLinkFn.terminal = true;\n          terminalPriority = Math.max(terminalPriority, directive.priority);\n        }\n\n      }\n\n      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n      nodeLinkFn.templateOnThisElement = hasTemplate;\n      nodeLinkFn.transclude = childTranscludeFn;\n\n      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n      // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n      return nodeLinkFn;\n\n      ////////////////////\n\n      function addLinkFns(pre, post, attrStart, attrEnd) {\n        if (pre) {\n          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n          pre.require = directive.require;\n          pre.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n          }\n          preLinkFns.push(pre);\n        }\n        if (post) {\n          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n          post.require = directive.require;\n          post.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            post = cloneAndAnnotateFn(post, {isolateScope: true});\n          }\n          postLinkFns.push(post);\n        }\n      }\n\n\n      function getControllers(directiveName, require, $element, elementControllers) {\n        var value, retrievalMethod = 'data', optional = false;\n        if (isString(require)) {\n          while((value = require.charAt(0)) == '^' || value == '?') {\n            require = require.substr(1);\n            if (value == '^') {\n              retrievalMethod = 'inheritedData';\n            }\n            optional = optional || value == '?';\n          }\n          value = null;\n\n          if (elementControllers && retrievalMethod === 'data') {\n            value = elementControllers[require];\n          }\n          value = value || $element[retrievalMethod]('$' + require + 'Controller');\n\n          if (!value && !optional) {\n            throw $compileMinErr('ctreq',\n                \"Controller '{0}', required by directive '{1}', can't be found!\",\n                require, directiveName);\n          }\n          return value;\n        } else if (isArray(require)) {\n          value = [];\n          forEach(require, function(require) {\n            value.push(getControllers(directiveName, require, $element, elementControllers));\n          });\n        }\n        return value;\n      }\n\n\n      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n        var attrs, $element, i, ii, linkFn, controller, isolateScope, elementControllers = {}, transcludeFn;\n\n        attrs = (compileNode === linkNode)\n          ? templateAttrs\n          : shallowCopy(templateAttrs, new Attributes(jqLite(linkNode), templateAttrs.$attr));\n        $element = attrs.$$element;\n\n        if (newIsolateScopeDirective) {\n          var LOCAL_REGEXP = /^\\s*([@=&])(\\??)\\s*(\\w*)\\s*$/;\n\n          isolateScope = scope.$new(true);\n\n          if (templateDirective && (templateDirective === newIsolateScopeDirective ||\n              templateDirective === newIsolateScopeDirective.$$originalDirective)) {\n            $element.data('$isolateScope', isolateScope);\n          } else {\n            $element.data('$isolateScopeNoTemplate', isolateScope);\n          }\n\n\n\n          safeAddClass($element, 'ng-isolate-scope');\n\n          forEach(newIsolateScopeDirective.scope, function(definition, scopeName) {\n            var match = definition.match(LOCAL_REGEXP) || [],\n                attrName = match[3] || scopeName,\n                optional = (match[2] == '?'),\n                mode = match[1], // @, =, or &\n                lastValue,\n                parentGet, parentSet, compare;\n\n            isolateScope.$$isolateBindings[scopeName] = mode + attrName;\n\n            switch (mode) {\n\n              case '@':\n                attrs.$observe(attrName, function(value) {\n                  isolateScope[scopeName] = value;\n                });\n                attrs.$$observers[attrName].$$scope = scope;\n                if( attrs[attrName] ) {\n                  // If the attribute has been provided then we trigger an interpolation to ensure\n                  // the value is there for use in the link fn\n                  isolateScope[scopeName] = $interpolate(attrs[attrName])(scope);\n                }\n                break;\n\n              case '=':\n                if (optional && !attrs[attrName]) {\n                  return;\n                }\n                parentGet = $parse(attrs[attrName]);\n                if (parentGet.literal) {\n                  compare = equals;\n                } else {\n                  compare = function(a,b) { return a === b || (a !== a && b !== b); };\n                }\n                parentSet = parentGet.assign || function() {\n                  // reset the change, or we will throw this exception on every $digest\n                  lastValue = isolateScope[scopeName] = parentGet(scope);\n                  throw $compileMinErr('nonassign',\n                      \"Expression '{0}' used with directive '{1}' is non-assignable!\",\n                      attrs[attrName], newIsolateScopeDirective.name);\n                };\n                lastValue = isolateScope[scopeName] = parentGet(scope);\n                isolateScope.$watch(function parentValueWatch() {\n                  var parentValue = parentGet(scope);\n                  if (!compare(parentValue, isolateScope[scopeName])) {\n                    // we are out of sync and need to copy\n                    if (!compare(parentValue, lastValue)) {\n                      // parent changed and it has precedence\n                      isolateScope[scopeName] = parentValue;\n                    } else {\n                      // if the parent can be assigned then do so\n                      parentSet(scope, parentValue = isolateScope[scopeName]);\n                    }\n                  }\n                  return lastValue = parentValue;\n                }, null, parentGet.literal);\n                break;\n\n              case '&':\n                parentGet = $parse(attrs[attrName]);\n                isolateScope[scopeName] = function(locals) {\n                  return parentGet(scope, locals);\n                };\n                break;\n\n              default:\n                throw $compileMinErr('iscp',\n                    \"Invalid isolate scope definition for directive '{0}'.\" +\n                    \" Definition: {... {1}: '{2}' ...}\",\n                    newIsolateScopeDirective.name, scopeName, definition);\n            }\n          });\n        }\n        transcludeFn = boundTranscludeFn && controllersBoundTransclude;\n        if (controllerDirectives) {\n          forEach(controllerDirectives, function(directive) {\n            var locals = {\n              $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n              $element: $element,\n              $attrs: attrs,\n              $transclude: transcludeFn\n            }, controllerInstance;\n\n            controller = directive.controller;\n            if (controller == '@') {\n              controller = attrs[directive.name];\n            }\n\n            controllerInstance = $controller(controller, locals);\n            // For directives with element transclusion the element is a comment,\n            // but jQuery .data doesn't support attaching data to comment nodes as it's hard to\n            // clean up (http://bugs.jquery.com/ticket/8335).\n            // Instead, we save the controllers for the element in a local hash and attach to .data\n            // later, once we have the actual element.\n            elementControllers[directive.name] = controllerInstance;\n            if (!hasElementTranscludeDirective) {\n              $element.data('$' + directive.name + 'Controller', controllerInstance);\n            }\n\n            if (directive.controllerAs) {\n              locals.$scope[directive.controllerAs] = controllerInstance;\n            }\n          });\n        }\n\n        // PRELINKING\n        for(i = 0, ii = preLinkFns.length; i < ii; i++) {\n          try {\n            linkFn = preLinkFns[i];\n            linkFn(linkFn.isolateScope ? isolateScope : scope, $element, attrs,\n                linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers), transcludeFn);\n          } catch (e) {\n            $exceptionHandler(e, startingTag($element));\n          }\n        }\n\n        // RECURSION\n        // We only pass the isolate scope, if the isolate directive has a template,\n        // otherwise the child elements do not belong to the isolate directive.\n        var scopeToChild = scope;\n        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n          scopeToChild = isolateScope;\n        }\n        childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n\n        // POSTLINKING\n        for(i = postLinkFns.length - 1; i >= 0; i--) {\n          try {\n            linkFn = postLinkFns[i];\n            linkFn(linkFn.isolateScope ? isolateScope : scope, $element, attrs,\n                linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers), transcludeFn);\n          } catch (e) {\n            $exceptionHandler(e, startingTag($element));\n          }\n        }\n\n        // This is the function that is injected as `$transclude`.\n        function controllersBoundTransclude(scope, cloneAttachFn) {\n          var transcludeControllers;\n\n          // no scope passed\n          if (arguments.length < 2) {\n            cloneAttachFn = scope;\n            scope = undefined;\n          }\n\n          if (hasElementTranscludeDirective) {\n            transcludeControllers = elementControllers;\n          }\n\n          return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers);\n        }\n      }\n    }\n\n    function markDirectivesAsIsolate(directives) {\n      // mark all directives as needing isolate scope.\n      for (var j = 0, jj = directives.length; j < jj; j++) {\n        directives[j] = inherit(directives[j], {$$isolateScope: true});\n      }\n    }\n\n    /**\n     * looks up the directive and decorates it with exception handling and proper parameters. We\n     * call this the boundDirective.\n     *\n     * @param {string} name name of the directive to look up.\n     * @param {string} location The directive must be found in specific format.\n     *   String containing any of theses characters:\n     *\n     *   * `E`: element name\n     *   * `A': attribute\n     *   * `C`: class\n     *   * `M`: comment\n     * @returns {boolean} true if directive was added.\n     */\n    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n                          endAttrName) {\n      if (name === ignoreDirective) return null;\n      var match = null;\n      if (hasDirectives.hasOwnProperty(name)) {\n        for(var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i<ii; i++) {\n          try {\n            directive = directives[i];\n            if ( (maxPriority === undefined || maxPriority > directive.priority) &&\n                 directive.restrict.indexOf(location) != -1) {\n              if (startAttrName) {\n                directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n              }\n              tDirectives.push(directive);\n              match = directive;\n            }\n          } catch(e) { $exceptionHandler(e); }\n        }\n      }\n      return match;\n    }\n\n\n    /**\n     * When the element is replaced with HTML template then the new attributes\n     * on the template need to be merged with the existing attributes in the DOM.\n     * The desired effect is to have both of the attributes present.\n     *\n     * @param {object} dst destination attributes (original DOM)\n     * @param {object} src source attributes (from the directive template)\n     */\n    function mergeTemplateAttributes(dst, src) {\n      var srcAttr = src.$attr,\n          dstAttr = dst.$attr,\n          $element = dst.$$element;\n\n      // reapply the old attributes to the new element\n      forEach(dst, function(value, key) {\n        if (key.charAt(0) != '$') {\n          if (src[key] && src[key] !== value) {\n            value += (key === 'style' ? ';' : ' ') + src[key];\n          }\n          dst.$set(key, value, true, srcAttr[key]);\n        }\n      });\n\n      // copy the new attributes on the old attrs object\n      forEach(src, function(value, key) {\n        if (key == 'class') {\n          safeAddClass($element, value);\n          dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;\n        } else if (key == 'style') {\n          $element.attr('style', $element.attr('style') + ';' + value);\n          dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value;\n          // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n          // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n          // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n        } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {\n          dst[key] = value;\n          dstAttr[key] = srcAttr[key];\n        }\n      });\n    }\n\n\n    function compileTemplateUrl(directives, $compileNode, tAttrs,\n        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n      var linkQueue = [],\n          afterTemplateNodeLinkFn,\n          afterTemplateChildLinkFn,\n          beforeTemplateCompileNode = $compileNode[0],\n          origAsyncDirective = directives.shift(),\n          // The fact that we have to copy and patch the directive seems wrong!\n          derivedSyncDirective = extend({}, origAsyncDirective, {\n            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n          }),\n          templateUrl = (isFunction(origAsyncDirective.templateUrl))\n              ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n              : origAsyncDirective.templateUrl;\n\n      $compileNode.empty();\n\n      $http.get($sce.getTrustedResourceUrl(templateUrl), {cache: $templateCache}).\n        success(function(content) {\n          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n          content = denormalizeTemplate(content);\n\n          if (origAsyncDirective.replace) {\n            if (jqLiteIsTextNode(content)) {\n              $template = [];\n            } else {\n              $template = jqLite(trim(content));\n            }\n            compileNode = $template[0];\n\n            if ($template.length != 1 || compileNode.nodeType !== 1) {\n              throw $compileMinErr('tplrt',\n                  \"Template for directive '{0}' must have exactly one root element. {1}\",\n                  origAsyncDirective.name, templateUrl);\n            }\n\n            tempTemplateAttrs = {$attr: {}};\n            replaceWith($rootElement, $compileNode, compileNode);\n            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n            if (isObject(origAsyncDirective.scope)) {\n              markDirectivesAsIsolate(templateDirectives);\n            }\n            directives = templateDirectives.concat(directives);\n            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n          } else {\n            compileNode = beforeTemplateCompileNode;\n            $compileNode.html(content);\n          }\n\n          directives.unshift(derivedSyncDirective);\n\n          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n              previousCompileContext);\n          forEach($rootElement, function(node, i) {\n            if (node == compileNode) {\n              $rootElement[i] = $compileNode[0];\n            }\n          });\n          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n          while(linkQueue.length) {\n            var scope = linkQueue.shift(),\n                beforeTemplateLinkNode = linkQueue.shift(),\n                linkRootElement = linkQueue.shift(),\n                boundTranscludeFn = linkQueue.shift(),\n                linkNode = $compileNode[0];\n\n            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n              var oldClasses = beforeTemplateLinkNode.className;\n\n              if (!(previousCompileContext.hasElementTranscludeDirective &&\n                  origAsyncDirective.replace)) {\n                // it was cloned therefore we have to clone as well.\n                linkNode = jqLiteClone(compileNode);\n              }\n\n              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n              // Copy in CSS classes from original node\n              safeAddClass(jqLite(linkNode), oldClasses);\n            }\n            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n            } else {\n              childBoundTranscludeFn = boundTranscludeFn;\n            }\n            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n              childBoundTranscludeFn);\n          }\n          linkQueue = null;\n        }).\n        error(function(response, code, headers, config) {\n          throw $compileMinErr('tpload', 'Failed to load template: {0}', config.url);\n        });\n\n      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n        var childBoundTranscludeFn = boundTranscludeFn;\n        if (linkQueue) {\n          linkQueue.push(scope);\n          linkQueue.push(node);\n          linkQueue.push(rootElement);\n          linkQueue.push(childBoundTranscludeFn);\n        } else {\n          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n          }\n          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n        }\n      };\n    }\n\n\n    /**\n     * Sorting function for bound directives.\n     */\n    function byPriority(a, b) {\n      var diff = b.priority - a.priority;\n      if (diff !== 0) return diff;\n      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n      return a.index - b.index;\n    }\n\n\n    function assertNoDuplicate(what, previousDirective, directive, element) {\n      if (previousDirective) {\n        throw $compileMinErr('multidir', 'Multiple directives [{0}, {1}] asking for {2} on: {3}',\n            previousDirective.name, directive.name, what, startingTag(element));\n      }\n    }\n\n\n      function addTextInterpolateDirective(directives, text) {\n        var interpolateFn = $interpolate(text, true);\n        if (interpolateFn) {\n          directives.push({\n            priority: 0,\n            compile: function textInterpolateCompileFn(templateNode) {\n              // when transcluding a template that has bindings in the root\n              // then we don't have a parent and should do this in the linkFn\n              var parent = templateNode.parent(), hasCompileParent = parent.length;\n              if (hasCompileParent) safeAddClass(templateNode.parent(), 'ng-binding');\n\n              return function textInterpolateLinkFn(scope, node) {\n                var parent = node.parent(),\n                  bindings = parent.data('$binding') || [];\n                bindings.push(interpolateFn);\n                parent.data('$binding', bindings);\n                if (!hasCompileParent) safeAddClass(parent, 'ng-binding');\n                scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n                  node[0].nodeValue = value;\n                });\n              };\n            }\n          });\n        }\n      }\n\n\n    function getTrustedContext(node, attrNormalizedName) {\n      if (attrNormalizedName == \"srcdoc\") {\n        return $sce.HTML;\n      }\n      var tag = nodeName_(node);\n      // maction[xlink:href] can source SVG.  It's not limited to <maction>.\n      if (attrNormalizedName == \"xlinkHref\" ||\n          (tag == \"FORM\" && attrNormalizedName == \"action\") ||\n          // links can be stylesheets or imports, which can run script in the current origin\n          (tag == \"LINK\" && attrNormalizedName == \"href\") ||\n          (tag != \"IMG\" && (attrNormalizedName == \"src\" ||\n                            attrNormalizedName == \"ngSrc\"))) {\n        return $sce.RESOURCE_URL;\n      }\n    }\n\n\n    function addAttrInterpolateDirective(node, directives, value, name) {\n      var interpolateFn = $interpolate(value, true);\n\n      // no interpolation found -> ignore\n      if (!interpolateFn) return;\n\n\n      if (name === \"multiple\" && nodeName_(node) === \"SELECT\") {\n        throw $compileMinErr(\"selmulti\",\n            \"Binding to the 'multiple' attribute is not supported. Element: {0}\",\n            startingTag(node));\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function() {\n            return {\n              pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n                var $$observers = (attr.$$observers || (attr.$$observers = {}));\n\n                if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n                  throw $compileMinErr('nodomevents',\n                      \"Interpolations for HTML DOM event attributes are disallowed.  Please use the \" +\n                          \"ng- versions (such as ng-click instead of onclick) instead.\");\n                }\n\n                // we need to interpolate again, in case the attribute value has been updated\n                // (e.g. by another directive's compile function)\n                interpolateFn = $interpolate(attr[name], true, getTrustedContext(node, name));\n\n                // if attribute was updated so that there is no interpolation going on we don't want to\n                // register any observers\n                if (!interpolateFn) return;\n\n                // TODO(i): this should likely be attr.$set(name, iterpolateFn(scope) so that we reset the\n                // actual attr value\n                attr[name] = interpolateFn(scope);\n                ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n                (attr.$$observers && attr.$$observers[name].$$scope || scope).\n                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n                    //special case for class attribute addition + removal\n                    //so that class changes can tap into the animation\n                    //hooks provided by the $animate service. Be sure to\n                    //skip animations when the first digest occurs (when\n                    //both the new and the old values are the same) since\n                    //the CSS classes are the non-interpolated values\n                    if(name === 'class' && newValue != oldValue) {\n                      attr.$updateClass(newValue, oldValue);\n                    } else {\n                      attr.$set(name, newValue);\n                    }\n                  });\n              }\n            };\n          }\n      });\n    }\n\n\n    /**\n     * This is a special jqLite.replaceWith, which can replace items which\n     * have no parents, provided that the containing jqLite collection is provided.\n     *\n     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n     *                               in the root of the tree.\n     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n     *                                  the shell, but replace its DOM node reference.\n     * @param {Node} newNode The new DOM node.\n     */\n    function replaceWith($rootElement, elementsToRemove, newNode) {\n      var firstElementToRemove = elementsToRemove[0],\n          removeCount = elementsToRemove.length,\n          parent = firstElementToRemove.parentNode,\n          i, ii;\n\n      if ($rootElement) {\n        for(i = 0, ii = $rootElement.length; i < ii; i++) {\n          if ($rootElement[i] == firstElementToRemove) {\n            $rootElement[i++] = newNode;\n            for (var j = i, j2 = j + removeCount - 1,\n                     jj = $rootElement.length;\n                 j < jj; j++, j2++) {\n              if (j2 < jj) {\n                $rootElement[j] = $rootElement[j2];\n              } else {\n                delete $rootElement[j];\n              }\n            }\n            $rootElement.length -= removeCount - 1;\n            break;\n          }\n        }\n      }\n\n      if (parent) {\n        parent.replaceChild(newNode, firstElementToRemove);\n      }\n      var fragment = document.createDocumentFragment();\n      fragment.appendChild(firstElementToRemove);\n      newNode[jqLite.expando] = firstElementToRemove[jqLite.expando];\n      for (var k = 1, kk = elementsToRemove.length; k < kk; k++) {\n        var element = elementsToRemove[k];\n        jqLite(element).remove(); // must do this way to clean up expando\n        fragment.appendChild(element);\n        delete elementsToRemove[k];\n      }\n\n      elementsToRemove[0] = newNode;\n      elementsToRemove.length = 1;\n    }\n\n\n    function cloneAndAnnotateFn(fn, annotation) {\n      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n    }\n  }];\n}\n\nvar PREFIX_REGEXP = /^(x[\\:\\-_]|data[\\:\\-_])/i;\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n  return camelCase(name.replace(PREFIX_REGEXP, ''));\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in Angular:\n *\n * ```\n *    <span ng:bind=\"a\" ng-bind=\"a\" data-ng-bind=\"a\" x-ng-bind=\"a\">\n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n *          property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n  /* angular.Scope */ scope,\n  /* NodeList */ nodeList,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n){}\n\nfunction directiveLinkingFn(\n  /* nodesetLinkingFn */ nodesetLinkingFn,\n  /* angular.Scope */ scope,\n  /* Node */ node,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n){}\n\nfunction tokenDifference(str1, str2) {\n  var values = '',\n      tokens1 = str1.split(/\\s+/),\n      tokens2 = str2.split(/\\s+/);\n\n  outer:\n  for(var i = 0; i < tokens1.length; i++) {\n    var token = tokens1[i];\n    for(var j = 0; j < tokens2.length; j++) {\n      if(token == tokens2[j]) continue outer;\n    }\n    values += (values.length > 0 ? ' ' : '') + token;\n  }\n  return values;\n}\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @description\n * The {@link ng.$controller $controller service} is used by Angular to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n  var controllers = {},\n      CNTRL_REG = /^(\\S+)(\\s+as\\s+(\\w+))?$/;\n\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#register\n   * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n   *    the names and the values are the constructors.\n   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n   *    annotations in the array notation).\n   */\n  this.register = function(name, constructor) {\n    assertNotHasOwnProperty(name, 'controller');\n    if (isObject(name)) {\n      extend(controllers, name);\n    } else {\n      controllers[name] = constructor;\n    }\n  };\n\n\n  this.$get = ['$injector', '$window', function($injector, $window) {\n\n    /**\n     * @ngdoc service\n     * @name $controller\n     * @requires $injector\n     *\n     * @param {Function|string} constructor If called with a function then it's considered to be the\n     *    controller constructor function. Otherwise it's considered to be a string which is used\n     *    to retrieve the controller constructor using the following steps:\n     *\n     *    * check if a controller with given name is registered via `$controllerProvider`\n     *    * check if evaluating the string on the current scope returns a constructor\n     *    * check `window[constructor]` on the global `window` object\n     *\n     * @param {Object} locals Injection locals for Controller.\n     * @return {Object} Instance of given controller.\n     *\n     * @description\n     * `$controller` service is responsible for instantiating controllers.\n     *\n     * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n     */\n    return function(expression, locals) {\n      var instance, match, constructor, identifier;\n\n      if(isString(expression)) {\n        match = expression.match(CNTRL_REG),\n        constructor = match[1],\n        identifier = match[3];\n        expression = controllers.hasOwnProperty(constructor)\n            ? controllers[constructor]\n            : getter(locals.$scope, constructor, true) || getter($window, constructor, true);\n\n        assertArgFn(expression, constructor, true);\n      }\n\n      instance = $injector.instantiate(expression, locals);\n\n      if (identifier) {\n        if (!(locals && typeof locals.$scope === 'object')) {\n          throw minErr('$controller')('noscp',\n              \"Cannot export controller '{0}' as '{1}'! No $scope object provided via `locals`.\",\n              constructor || expression.name, identifier);\n        }\n\n        locals.$scope[identifier] = instance;\n      }\n\n      return instance;\n    };\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n   <example module=\"documentExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <p>$document title: <b ng-bind=\"title\"></b></p>\n         <p>window.document title: <b ng-bind=\"windowTitle\"></b></p>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('documentExample', [])\n         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {\n           $scope.title = $document[0].title;\n           $scope.windowTitle = angular.element(window.document)[0].title;\n         }]);\n     </file>\n   </example>\n */\nfunction $DocumentProvider(){\n  this.$get = ['$window', function(window){\n    return jqLite(window.document);\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n * @requires ng.$log\n *\n * @description\n * Any uncaught exception in angular expressions is delegated to this service.\n * The default implementation simply delegates to `$log.error` which logs it into\n * the browser console.\n *\n * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by\n * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.\n *\n * ## Example:\n *\n * ```js\n *   angular.module('exceptionOverride', []).factory('$exceptionHandler', function () {\n *     return function (exception, cause) {\n *       exception.message += ' (caused by \"' + cause + '\")';\n *       throw exception;\n *     };\n *   });\n * ```\n *\n * This example will override the normal action of `$exceptionHandler`, to make angular\n * exceptions fail hard when they happen, instead of just logging to the console.\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause optional information about the context in which\n *       the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n  this.$get = ['$log', function($log) {\n    return function(exception, cause) {\n      $log.error.apply($log, arguments);\n    };\n  }];\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n  var parsed = {}, key, val, i;\n\n  if (!headers) return parsed;\n\n  forEach(headers.split('\\n'), function(line) {\n    i = line.indexOf(':');\n    key = lowercase(trim(line.substr(0, i)));\n    val = trim(line.substr(i + 1));\n\n    if (key) {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n *   - if called with single an argument returns a single header value or null\n *   - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n  var headersObj = isObject(headers) ? headers : undefined;\n\n  return function(name) {\n    if (!headersObj) headersObj =  parseHeaders(headers);\n\n    if (name) {\n      return headersObj[lowercase(name)] || null;\n    }\n\n    return headersObj;\n  };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers Http headers getter fn.\n * @param {(Function|Array.<Function>)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, fns) {\n  if (isFunction(fns))\n    return fns(data, headers);\n\n  forEach(fns, function(fn) {\n    data = fn(data, headers);\n  });\n\n  return data;\n}\n\n\nfunction isSuccess(status) {\n  return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n * */\nfunction $HttpProvider() {\n  var JSON_START = /^\\s*(\\[|\\{[^\\{])/,\n      JSON_END = /[\\}\\]]\\s*$/,\n      PROTECTION_PREFIX = /^\\)\\]\\}',?\\n/,\n      CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': 'application/json;charset=utf-8'};\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#defaults\n   * @description\n   *\n   * Object containing default values for all {@link ng.$http $http} requests.\n   *\n   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n   * Defaults value is `'XSRF-TOKEN'`.\n   *\n   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n   *\n   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n   * setting default headers.\n   *     - **`defaults.headers.common`**\n   *     - **`defaults.headers.post`**\n   *     - **`defaults.headers.put`**\n   *     - **`defaults.headers.patch`**\n   **/\n  var defaults = this.defaults = {\n    // transform incoming response data\n    transformResponse: [function(data) {\n      if (isString(data)) {\n        // strip json vulnerability protection prefix\n        data = data.replace(PROTECTION_PREFIX, '');\n        if (JSON_START.test(data) && JSON_END.test(data))\n          data = fromJson(data);\n      }\n      return data;\n    }],\n\n    // transform outgoing request data\n    transformRequest: [function(d) {\n      return isObject(d) && !isFile(d) && !isBlob(d) ? toJson(d) : d;\n    }],\n\n    // default headers\n    headers: {\n      common: {\n        'Accept': 'application/json, text/plain, */*'\n      },\n      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n    },\n\n    xsrfCookieName: 'XSRF-TOKEN',\n    xsrfHeaderName: 'X-XSRF-TOKEN'\n  };\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#interceptors\n   * @description\n   *\n   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n   * pre-processing of request or postprocessing of responses.\n   *\n   * These service factories are ordered by request, i.e. they are applied in the same order as the\n   * array, on request, but reverse order, on response.\n   *\n   * {@link ng.$http#interceptors Interceptors detailed info}\n   **/\n  var interceptorFactories = this.interceptors = [];\n\n  /**\n   * For historical reasons, response interceptors are ordered by the order in which\n   * they are applied to the response. (This is the opposite of interceptorFactories)\n   */\n  var responseInterceptorFactories = this.responseInterceptors = [];\n\n  this.$get = ['$httpBackend', '$browser', '$cacheFactory', '$rootScope', '$q', '$injector',\n      function($httpBackend, $browser, $cacheFactory, $rootScope, $q, $injector) {\n\n    var defaultCache = $cacheFactory('$http');\n\n    /**\n     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n     * The reversal is needed so that we can build up the interception chain around the\n     * server request.\n     */\n    var reversedInterceptors = [];\n\n    forEach(interceptorFactories, function(interceptorFactory) {\n      reversedInterceptors.unshift(isString(interceptorFactory)\n          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n    });\n\n    forEach(responseInterceptorFactories, function(interceptorFactory, index) {\n      var responseFn = isString(interceptorFactory)\n          ? $injector.get(interceptorFactory)\n          : $injector.invoke(interceptorFactory);\n\n      /**\n       * Response interceptors go before \"around\" interceptors (no real reason, just\n       * had to pick one.) But they are already reversed, so we can't use unshift, hence\n       * the splice.\n       */\n      reversedInterceptors.splice(index, 0, {\n        response: function(response) {\n          return responseFn($q.when(response));\n        },\n        responseError: function(response) {\n          return responseFn($q.reject(response));\n        }\n      });\n    });\n\n\n    /**\n     * @ngdoc service\n     * @kind function\n     * @name $http\n     * @requires ng.$httpBackend\n     * @requires $cacheFactory\n     * @requires $rootScope\n     * @requires $q\n     * @requires $injector\n     *\n     * @description\n     * The `$http` service is a core Angular service that facilitates communication with the remote\n     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n     *\n     * For unit testing applications that use `$http` service, see\n     * {@link ngMock.$httpBackend $httpBackend mock}.\n     *\n     * For a higher level of abstraction, please check out the {@link ngResource.$resource\n     * $resource} service.\n     *\n     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n     * it is important to familiarize yourself with these APIs and the guarantees they provide.\n     *\n     *\n     * # General usage\n     * The `$http` service is a function which takes a single argument — a configuration object —\n     * that is used to generate an HTTP request and returns  a {@link ng.$q promise}\n     * with two $http specific methods: `success` and `error`.\n     *\n     * ```js\n     *   $http({method: 'GET', url: '/someUrl'}).\n     *     success(function(data, status, headers, config) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }).\n     *     error(function(data, status, headers, config) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     * Since the returned value of calling the $http function is a `promise`, you can also use\n     * the `then` method to register callbacks, and these callbacks will receive a single argument –\n     * an object representing the response. See the API signature and type info below for more\n     * details.\n     *\n     * A response status code between 200 and 299 is considered a success status and\n     * will result in the success callback being called. Note that if the response is a redirect,\n     * XMLHttpRequest will transparently follow it, meaning that the error callback will not be\n     * called for such responses.\n     *\n     * # Writing Unit Tests that use $http\n     * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n     * request using trained responses.\n     *\n     * ```\n     * $httpBackend.expectGET(...);\n     * $http.get(...);\n     * $httpBackend.flush();\n     * ```\n     *\n     * # Shortcut methods\n     *\n     * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n     * request data must be passed in for POST/PUT requests.\n     *\n     * ```js\n     *   $http.get('/someUrl').success(successCallback);\n     *   $http.post('/someUrl', data).success(successCallback);\n     * ```\n     *\n     * Complete list of shortcut methods:\n     *\n     * - {@link ng.$http#get $http.get}\n     * - {@link ng.$http#head $http.head}\n     * - {@link ng.$http#post $http.post}\n     * - {@link ng.$http#put $http.put}\n     * - {@link ng.$http#delete $http.delete}\n     * - {@link ng.$http#jsonp $http.jsonp}\n     * - {@link ng.$http#patch $http.patch}\n     *\n     *\n     * # Setting HTTP Headers\n     *\n     * The $http service will automatically add certain HTTP headers to all requests. These defaults\n     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n     * object, which currently contains this default configuration:\n     *\n     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n     *   - `Accept: application/json, text/plain, * / *`\n     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n     *   - `Content-Type: application/json`\n     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n     *   - `Content-Type: application/json`\n     *\n     * To add or overwrite these defaults, simply add or remove a property from these configuration\n     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n     * with the lowercased HTTP method name as the key, e.g.\n     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }.\n     *\n     * The defaults can also be set at runtime via the `$http.defaults` object in the same\n     * fashion. For example:\n     *\n     * ```\n     * module.run(function($http) {\n     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w'\n     * });\n     * ```\n     *\n     * In addition, you can supply a `headers` property in the config object passed when\n     * calling `$http(config)`, which overrides the defaults without changing them globally.\n     *\n     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n     * Use the `headers` property, setting the desired header to `undefined`. For example:\n     *\n     * ```js\n     * var req = {\n     *  method: 'POST',\n     *  url: 'http://example.com',\n     *  headers: {\n     *    'Content-Type': undefined\n     *  },\n     *  data: { test: 'test' },\n     * }\n     *\n     * $http(req).success(function(){...}).error(function(){...});\n     * ```\n     *\n     * # Transforming Requests and Responses\n     *\n     * Both requests and responses can be transformed using transform functions. By default, Angular\n     * applies these transformations:\n     *\n     * Request transformations:\n     *\n     * - If the `data` property of the request configuration object contains an object, serialize it\n     *   into JSON format.\n     *\n     * Response transformations:\n     *\n     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).\n     *  - If JSON response is detected, deserialize it using a JSON parser.\n     *\n     * To globally augment or override the default transforms, modify the\n     * `$httpProvider.defaults.transformRequest` and `$httpProvider.defaults.transformResponse`\n     * properties. These properties are by default an array of transform functions, which allows you\n     * to `push` or `unshift` a new transformation function into the transformation chain. You can\n     * also decide to completely override any default transformations by assigning your\n     * transformation functions to these properties directly without the array wrapper.  These defaults\n     * are again available on the $http factory at run-time, which may be useful if you have run-time\n     * services you wish to be involved in your transformations.\n     *\n     * Similarly, to locally override the request/response transforms, augment the\n     * `transformRequest` and/or `transformResponse` properties of the configuration object passed\n     * into `$http`.\n     *\n     *\n     * # Caching\n     *\n     * To enable caching, set the request configuration `cache` property to `true` (to use default\n     * cache) or to a custom cache object (built with {@link ng.$cacheFactory `$cacheFactory`}).\n     * When the cache is enabled, `$http` stores the response from the server in the specified\n     * cache. The next time the same request is made, the response is served from the cache without\n     * sending a request to the server.\n     *\n     * Note that even if the response is served from cache, delivery of the data is asynchronous in\n     * the same way that real requests are.\n     *\n     * If there are multiple GET requests for the same URL that should be cached using the same\n     * cache, but the cache is not populated yet, only one request to the server will be made and\n     * the remaining requests will be fulfilled using the response from the first request.\n     *\n     * You can change the default cache to a new object (built with\n     * {@link ng.$cacheFactory `$cacheFactory`}) by updating the\n     * {@link ng.$http#properties_defaults `$http.defaults.cache`} property. All requests who set\n     * their `cache` property to `true` will now use this cache object.\n     *\n     * If you set the default cache to `false` then only requests that specify their own custom\n     * cache object will be cached.\n     *\n     * # Interceptors\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication, or any kind of synchronous or\n     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n     * able to intercept requests before they are handed to the server and\n     * responses before they are handed over to the application code that\n     * initiated these requests. The interceptors leverage the {@link ng.$q\n     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n     *\n     * The interceptors are service factories that are registered with the `$httpProvider` by\n     * adding them to the `$httpProvider.interceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor.\n     *\n     * There are two kinds of interceptors (and two kinds of rejection interceptors):\n     *\n     *   * `request`: interceptors get called with a http `config` object. The function is free to\n     *     modify the `config` object or create a new one. The function needs to return the `config`\n     *     object directly, or a promise containing the `config` or a new `config` object.\n     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *   * `response`: interceptors get called with http `response` object. The function is free to\n     *     modify the `response` object or create a new one. The function needs to return the `response`\n     *     object directly, or as a promise containing the `response` or a new `response` object.\n     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return {\n     *       // optional method\n     *       'request': function(config) {\n     *         // do something on success\n     *         return config;\n     *       },\n     *\n     *       // optional method\n     *      'requestError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       },\n     *\n     *\n     *\n     *       // optional method\n     *       'response': function(response) {\n     *         // do something on success\n     *         return response;\n     *       },\n     *\n     *       // optional method\n     *      'responseError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       }\n     *     };\n     *   });\n     *\n     *   $httpProvider.interceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // alternatively, register the interceptor via an anonymous factory\n     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n     *     return {\n     *      'request': function(config) {\n     *          // same as above\n     *       },\n     *\n     *       'response': function(response) {\n     *          // same as above\n     *       }\n     *     };\n     *   });\n     * ```\n     *\n     * # Response interceptors (DEPRECATED)\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication or any kind of synchronous or\n     * asynchronous preprocessing of received responses, it is desirable to be able to intercept\n     * responses for http requests before they are handed over to the application code that\n     * initiated these requests. The response interceptors leverage the {@link ng.$q\n     * promise apis} to fulfil this need for both synchronous and asynchronous preprocessing.\n     *\n     * The interceptors are service factories that are registered with the $httpProvider by\n     * adding them to the `$httpProvider.responseInterceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor  — a function that\n     * takes a {@link ng.$q promise} and returns the original or a new promise.\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return function(promise) {\n     *       return promise.then(function(response) {\n     *         // do something on success\n     *         return response;\n     *       }, function(response) {\n     *         // do something on error\n     *         if (canRecover(response)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(response);\n     *       });\n     *     }\n     *   });\n     *\n     *   $httpProvider.responseInterceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // register the interceptor via an anonymous factory\n     *   $httpProvider.responseInterceptors.push(function($q, dependency1, dependency2) {\n     *     return function(promise) {\n     *       // same as above\n     *     }\n     *   });\n     * ```\n     *\n     *\n     * # Security Considerations\n     *\n     * When designing web applications, consider security threats from:\n     *\n     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n     *\n     * Both server and the client must cooperate in order to eliminate these threats. Angular comes\n     * pre-configured with strategies that address these issues, but for this to work backend server\n     * cooperation is required.\n     *\n     * ## JSON Vulnerability Protection\n     *\n     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * allows third party website to turn your JSON resource URL into\n     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n     * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n     * Angular will automatically strip the prefix before processing it as JSON.\n     *\n     * For example if your server needs to return:\n     * ```js\n     * ['one','two']\n     * ```\n     *\n     * which is vulnerable to attack, your server can return:\n     * ```js\n     * )]}',\n     * ['one','two']\n     * ```\n     *\n     * Angular will strip the prefix, before processing the JSON.\n     *\n     *\n     * ## Cross Site Request Forgery (XSRF) Protection\n     *\n     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is a technique by which\n     * an unauthorized site can gain your user's private data. Angular provides a mechanism\n     * to counter XSRF. When performing XHR requests, the $http service reads a token from a cookie\n     * (by default, `XSRF-TOKEN`) and sets it as an HTTP header (`X-XSRF-TOKEN`). Since only\n     * JavaScript that runs on your domain could read the cookie, your server can be assured that\n     * the XHR came from JavaScript running on your domain. The header will not be set for\n     * cross-domain requests.\n     *\n     * To take advantage of this, your server needs to set a token in a JavaScript readable session\n     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n     * server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure\n     * that only JavaScript running on your domain could have sent the request. The token must be\n     * unique for each user and must be verifiable by the server (to prevent the JavaScript from\n     * making up its own tokens). We recommend that the token is a digest of your site's\n     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)\n     * for added security.\n     *\n     * The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName\n     * properties of either $httpProvider.defaults at config-time, $http.defaults at run-time,\n     * or the per-request config object.\n     *\n     *\n     * @param {object} config Object describing the request to be made and how it should be\n     *    processed. The object has following properties:\n     *\n     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n     *    - **url** – `{string}` – Absolute or relative URL of the resource that is being requested.\n     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be turned\n     *      to `?key1=value1&key2=value2` after the url. If the value is not a string, it will be\n     *      JSONified.\n     *    - **data** – `{string|Object}` – Data to be sent as the request message data.\n     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing\n     *      HTTP headers to send to the server. If the return value of a function is null, the\n     *      header will not be sent.\n     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n     *    - **transformRequest** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      request body and headers and returns its transformed (typically serialized) version.\n     *    - **transformResponse** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      response body and headers and returns its transformed (typically deserialized) version.\n     *    - **cache** – `{boolean|Cache}` – If true, a default $http cache will be used to cache the\n     *      GET request, otherwise if a cache instance built with\n     *      {@link ng.$cacheFactory $cacheFactory}, this cache will be used for\n     *      caching.\n     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n     *      that should abort the request when resolved.\n     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n     *      for more information.\n     *    - **responseType** - `{string}` - see\n     *      [requestType](https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest#responseType).\n     *\n     * @returns {HttpPromise} Returns a {@link ng.$q promise} object with the\n     *   standard `then` method and two http specific methods: `success` and `error`. The `then`\n     *   method takes two arguments a success and an error callback which will be called with a\n     *   response object. The `success` and `error` methods take a single argument - a function that\n     *   will be called when the request succeeds or fails respectively. The arguments passed into\n     *   these functions are destructured representation of the response object passed into the\n     *   `then` method. The response object has these properties:\n     *\n     *   - **data** – `{string|Object}` – The response body transformed with the transform\n     *     functions.\n     *   - **status** – `{number}` – HTTP status code of the response.\n     *   - **headers** – `{function([headerName])}` – Header getter function.\n     *   - **config** – `{Object}` – The configuration object that was used to generate the request.\n     *   - **statusText** – `{string}` – HTTP status text of the response.\n     *\n     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending\n     *   requests. This is primarily meant to be used for debugging purposes.\n     *\n     *\n     * @example\n<example module=\"httpExample\">\n<file name=\"index.html\">\n  <div ng-controller=\"FetchController\">\n    <select ng-model=\"method\">\n      <option>GET</option>\n      <option>JSONP</option>\n    </select>\n    <input type=\"text\" ng-model=\"url\" size=\"80\"/>\n    <button id=\"fetchbtn\" ng-click=\"fetch()\">fetch</button><br>\n    <button id=\"samplegetbtn\" ng-click=\"updateModel('GET', 'http-hello.html')\">Sample GET</button>\n    <button id=\"samplejsonpbtn\"\n      ng-click=\"updateModel('JSONP',\n                    'https://angularjs.org/greet.php?callback=JSON_CALLBACK&name=Super%20Hero')\">\n      Sample JSONP\n    </button>\n    <button id=\"invalidjsonpbtn\"\n      ng-click=\"updateModel('JSONP', 'https://angularjs.org/doesntexist&callback=JSON_CALLBACK')\">\n        Invalid JSONP\n      </button>\n    <pre>http status code: {{status}}</pre>\n    <pre>http response data: {{data}}</pre>\n  </div>\n</file>\n<file name=\"script.js\">\n  angular.module('httpExample', [])\n    .controller('FetchController', ['$scope', '$http', '$templateCache',\n      function($scope, $http, $templateCache) {\n        $scope.method = 'GET';\n        $scope.url = 'http-hello.html';\n\n        $scope.fetch = function() {\n          $scope.code = null;\n          $scope.response = null;\n\n          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).\n            success(function(data, status) {\n              $scope.status = status;\n              $scope.data = data;\n            }).\n            error(function(data, status) {\n              $scope.data = data || \"Request failed\";\n              $scope.status = status;\n          });\n        };\n\n        $scope.updateModel = function(method, url) {\n          $scope.method = method;\n          $scope.url = url;\n        };\n      }]);\n</file>\n<file name=\"http-hello.html\">\n  Hello, $http!\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  var status = element(by.binding('status'));\n  var data = element(by.binding('data'));\n  var fetchBtn = element(by.id('fetchbtn'));\n  var sampleGetBtn = element(by.id('samplegetbtn'));\n  var sampleJsonpBtn = element(by.id('samplejsonpbtn'));\n  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));\n\n  it('should make an xhr GET request', function() {\n    sampleGetBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('200');\n    expect(data.getText()).toMatch(/Hello, \\$http!/);\n  });\n\n// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185\n// it('should make a JSONP request to angularjs.org', function() {\n//   sampleJsonpBtn.click();\n//   fetchBtn.click();\n//   expect(status.getText()).toMatch('200');\n//   expect(data.getText()).toMatch(/Super Hero!/);\n// });\n\n  it('should make JSONP request to invalid URL and invoke the error handler',\n      function() {\n    invalidJsonpBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('0');\n    expect(data.getText()).toMatch('Request failed');\n  });\n</file>\n</example>\n     */\n    function $http(requestConfig) {\n      var config = {\n        method: 'get',\n        transformRequest: defaults.transformRequest,\n        transformResponse: defaults.transformResponse\n      };\n      var headers = mergeHeaders(requestConfig);\n\n      extend(config, requestConfig);\n      config.headers = headers;\n      config.method = uppercase(config.method);\n\n      var serverRequest = function(config) {\n        headers = config.headers;\n        var reqData = transformData(config.data, headersGetter(headers), config.transformRequest);\n\n        // strip content-type if data is undefined\n        if (isUndefined(reqData)) {\n          forEach(headers, function(value, header) {\n            if (lowercase(header) === 'content-type') {\n                delete headers[header];\n            }\n          });\n        }\n\n        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {\n          config.withCredentials = defaults.withCredentials;\n        }\n\n        // send request\n        return sendReq(config, reqData, headers).then(transformResponse, transformResponse);\n      };\n\n      var chain = [serverRequest, undefined];\n      var promise = $q.when(config);\n\n      // apply interceptors\n      forEach(reversedInterceptors, function(interceptor) {\n        if (interceptor.request || interceptor.requestError) {\n          chain.unshift(interceptor.request, interceptor.requestError);\n        }\n        if (interceptor.response || interceptor.responseError) {\n          chain.push(interceptor.response, interceptor.responseError);\n        }\n      });\n\n      while(chain.length) {\n        var thenFn = chain.shift();\n        var rejectFn = chain.shift();\n\n        promise = promise.then(thenFn, rejectFn);\n      }\n\n      promise.success = function(fn) {\n        promise.then(function(response) {\n          fn(response.data, response.status, response.headers, config);\n        });\n        return promise;\n      };\n\n      promise.error = function(fn) {\n        promise.then(null, function(response) {\n          fn(response.data, response.status, response.headers, config);\n        });\n        return promise;\n      };\n\n      return promise;\n\n      function transformResponse(response) {\n        // make a copy since the response must be cacheable\n        var resp = extend({}, response, {\n          data: transformData(response.data, response.headers, config.transformResponse)\n        });\n        return (isSuccess(response.status))\n          ? resp\n          : $q.reject(resp);\n      }\n\n      function mergeHeaders(config) {\n        var defHeaders = defaults.headers,\n            reqHeaders = extend({}, config.headers),\n            defHeaderName, lowercaseDefHeaderName, reqHeaderName;\n\n        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);\n\n        // using for-in instead of forEach to avoid unecessary iteration after header has been found\n        defaultHeadersIteration:\n        for (defHeaderName in defHeaders) {\n          lowercaseDefHeaderName = lowercase(defHeaderName);\n\n          for (reqHeaderName in reqHeaders) {\n            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {\n              continue defaultHeadersIteration;\n            }\n          }\n\n          reqHeaders[defHeaderName] = defHeaders[defHeaderName];\n        }\n\n        // execute if header value is a function for merged headers\n        execHeaders(reqHeaders);\n        return reqHeaders;\n\n        function execHeaders(headers) {\n          var headerContent;\n\n          forEach(headers, function(headerFn, header) {\n            if (isFunction(headerFn)) {\n              headerContent = headerFn();\n              if (headerContent != null) {\n                headers[header] = headerContent;\n              } else {\n                delete headers[header];\n              }\n            }\n          });\n        }\n      }\n    }\n\n    $http.pendingRequests = [];\n\n    /**\n     * @ngdoc method\n     * @name $http#get\n     *\n     * @description\n     * Shortcut method to perform `GET` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#delete\n     *\n     * @description\n     * Shortcut method to perform `DELETE` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#head\n     *\n     * @description\n     * Shortcut method to perform `HEAD` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#jsonp\n     *\n     * @description\n     * Shortcut method to perform `JSONP` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request.\n     *                     The name of the callback should be the string `JSON_CALLBACK`.\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n    createShortMethods('get', 'delete', 'head', 'jsonp');\n\n    /**\n     * @ngdoc method\n     * @name $http#post\n     *\n     * @description\n     * Shortcut method to perform `POST` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#put\n     *\n     * @description\n     * Shortcut method to perform `PUT` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#patch\n     *\n     * @description\n     * Shortcut method to perform `PATCH` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n    createShortMethodsWithData('post', 'put', 'patch');\n\n    /**\n     * @ngdoc property\n     * @name $http#defaults\n     *\n     * @description\n     * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of\n     * default headers, withCredentials as well as request and response transformations.\n     *\n     * See \"Setting HTTP Headers\" and \"Transforming Requests and Responses\" sections above.\n     */\n    $http.defaults = defaults;\n\n\n    return $http;\n\n\n    function createShortMethods(names) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, config) {\n          return $http(extend(config || {}, {\n            method: name,\n            url: url\n          }));\n        };\n      });\n    }\n\n\n    function createShortMethodsWithData(name) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, data, config) {\n          return $http(extend(config || {}, {\n            method: name,\n            url: url,\n            data: data\n          }));\n        };\n      });\n    }\n\n\n    /**\n     * Makes the request.\n     *\n     * !!! ACCESSES CLOSURE VARS:\n     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests\n     */\n    function sendReq(config, reqData, reqHeaders) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          cache,\n          cachedResp,\n          url = buildUrl(config.url, config.params);\n\n      $http.pendingRequests.push(config);\n      promise.then(removePendingReq, removePendingReq);\n\n\n      if ((config.cache || defaults.cache) && config.cache !== false &&\n          (config.method === 'GET' || config.method === 'JSONP')) {\n        cache = isObject(config.cache) ? config.cache\n              : isObject(defaults.cache) ? defaults.cache\n              : defaultCache;\n      }\n\n      if (cache) {\n        cachedResp = cache.get(url);\n        if (isDefined(cachedResp)) {\n          if (isPromiseLike(cachedResp)) {\n            // cached request has already been sent, but there is no response yet\n            cachedResp.then(removePendingReq, removePendingReq);\n            return cachedResp;\n          } else {\n            // serving from cache\n            if (isArray(cachedResp)) {\n              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3]);\n            } else {\n              resolvePromise(cachedResp, 200, {}, 'OK');\n            }\n          }\n        } else {\n          // put the promise for the non-transformed response into cache as a placeholder\n          cache.put(url, promise);\n        }\n      }\n\n\n      // if we won't have the response in cache, set the xsrf headers and\n      // send the request to the backend\n      if (isUndefined(cachedResp)) {\n        var xsrfValue = urlIsSameOrigin(config.url)\n            ? $browser.cookies()[config.xsrfCookieName || defaults.xsrfCookieName]\n            : undefined;\n        if (xsrfValue) {\n          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;\n        }\n\n        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,\n            config.withCredentials, config.responseType);\n      }\n\n      return promise;\n\n\n      /**\n       * Callback registered to $httpBackend():\n       *  - caches the response if desired\n       *  - resolves the raw $http promise\n       *  - calls $apply\n       */\n      function done(status, response, headersString, statusText) {\n        if (cache) {\n          if (isSuccess(status)) {\n            cache.put(url, [status, response, parseHeaders(headersString), statusText]);\n          } else {\n            // remove promise from the cache\n            cache.remove(url);\n          }\n        }\n\n        resolvePromise(response, status, headersString, statusText);\n        if (!$rootScope.$$phase) $rootScope.$apply();\n      }\n\n\n      /**\n       * Resolves the raw $http promise.\n       */\n      function resolvePromise(response, status, headers, statusText) {\n        // normalize internal statuses to 0\n        status = Math.max(status, 0);\n\n        (isSuccess(status) ? deferred.resolve : deferred.reject)({\n          data: response,\n          status: status,\n          headers: headersGetter(headers),\n          config: config,\n          statusText : statusText\n        });\n      }\n\n\n      function removePendingReq() {\n        var idx = indexOf($http.pendingRequests, config);\n        if (idx !== -1) $http.pendingRequests.splice(idx, 1);\n      }\n    }\n\n\n    function buildUrl(url, params) {\n      if (!params) return url;\n      var parts = [];\n      forEachSorted(params, function(value, key) {\n        if (value === null || isUndefined(value)) return;\n        if (!isArray(value)) value = [value];\n\n        forEach(value, function(v) {\n          if (isObject(v)) {\n            if (isDate(v)){\n              v = v.toISOString();\n            } else {\n              v = toJson(v);\n            }\n          }\n          parts.push(encodeUriQuery(key) + '=' +\n                     encodeUriQuery(v));\n        });\n      });\n      if(parts.length > 0) {\n        url += ((url.indexOf('?') == -1) ? '?' : '&') + parts.join('&');\n      }\n      return url;\n    }\n  }];\n}\n\nfunction createXhr(method) {\n    //if IE and the method is not RFC2616 compliant, or if XMLHttpRequest\n    //is not available, try getting an ActiveXObject. Otherwise, use XMLHttpRequest\n    //if it is available\n    if (msie <= 8 && (!method.match(/^(get|post|head|put|delete|options)$/i) ||\n      !window.XMLHttpRequest)) {\n      return new window.ActiveXObject(\"Microsoft.XMLHTTP\");\n    } else if (window.XMLHttpRequest) {\n      return new window.XMLHttpRequest();\n    }\n\n    throw minErr('$httpBackend')('noxhr', \"This browser does not support XMLHttpRequest.\");\n}\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @requires $window\n * @requires $document\n *\n * @description\n * HTTP backend used by the {@link ng.$http service} that delegates to\n * XMLHttpRequest object or JSONP and deals with browser incompatibilities.\n *\n * You should never need to use this service directly, instead use the higher-level abstractions:\n * {@link ng.$http $http} or {@link ngResource.$resource $resource}.\n *\n * During testing this implementation is swapped with {@link ngMock.$httpBackend mock\n * $httpBackend} which can be trained with responses.\n */\nfunction $HttpBackendProvider() {\n  this.$get = ['$browser', '$window', '$document', function($browser, $window, $document) {\n    return createHttpBackend($browser, createXhr, $browser.defer, $window.angular.callbacks, $document[0]);\n  }];\n}\n\nfunction createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {\n  var ABORTED = -1;\n\n  // TODO(vojta): fix the signature\n  return function(method, url, post, callback, headers, timeout, withCredentials, responseType) {\n    var status;\n    $browser.$$incOutstandingRequestCount();\n    url = url || $browser.url();\n\n    if (lowercase(method) == 'jsonp') {\n      var callbackId = '_' + (callbacks.counter++).toString(36);\n      callbacks[callbackId] = function(data) {\n        callbacks[callbackId].data = data;\n        callbacks[callbackId].called = true;\n      };\n\n      var jsonpDone = jsonpReq(url.replace('JSON_CALLBACK', 'angular.callbacks.' + callbackId),\n          callbackId, function(status, text) {\n        completeRequest(callback, status, callbacks[callbackId].data, \"\", text);\n        callbacks[callbackId] = noop;\n      });\n    } else {\n\n      var xhr = createXhr(method);\n\n      xhr.open(method, url, true);\n      forEach(headers, function(value, key) {\n        if (isDefined(value)) {\n            xhr.setRequestHeader(key, value);\n        }\n      });\n\n      // In IE6 and 7, this might be called synchronously when xhr.send below is called and the\n      // response is in the cache. the promise api will ensure that to the app code the api is\n      // always async\n      xhr.onreadystatechange = function() {\n        // onreadystatechange might get called multiple times with readyState === 4 on mobile webkit caused by\n        // xhrs that are resolved while the app is in the background (see #5426).\n        // since calling completeRequest sets the `xhr` variable to null, we just check if it's not null before\n        // continuing\n        //\n        // we can't set xhr.onreadystatechange to undefined or delete it because that breaks IE8 (method=PATCH) and\n        // Safari respectively.\n        if (xhr && xhr.readyState == 4) {\n          var responseHeaders = null,\n              response = null,\n              statusText = '';\n\n          if(status !== ABORTED) {\n            responseHeaders = xhr.getAllResponseHeaders();\n\n            // responseText is the old-school way of retrieving response (supported by IE8 & 9)\n            // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)\n            response = ('response' in xhr) ? xhr.response : xhr.responseText;\n          }\n\n          // Accessing statusText on an aborted xhr object will\n          // throw an 'c00c023f error' in IE9 and lower, don't touch it.\n          if (!(status === ABORTED && msie < 10)) {\n            statusText = xhr.statusText;\n          }\n\n          completeRequest(callback,\n              status || xhr.status,\n              response,\n              responseHeaders,\n              statusText);\n        }\n      };\n\n      if (withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      if (responseType) {\n        try {\n          xhr.responseType = responseType;\n        } catch (e) {\n          // WebKit added support for the json responseType value on 09/03/2013\n          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are\n          // known to throw when setting the value \"json\" as the response type. Other older\n          // browsers implementing the responseType\n          //\n          // The json response type can be ignored if not supported, because JSON payloads are\n          // parsed on the client-side regardless.\n          if (responseType !== 'json') {\n            throw e;\n          }\n        }\n      }\n\n      xhr.send(post || null);\n    }\n\n    if (timeout > 0) {\n      var timeoutId = $browserDefer(timeoutRequest, timeout);\n    } else if (isPromiseLike(timeout)) {\n      timeout.then(timeoutRequest);\n    }\n\n\n    function timeoutRequest() {\n      status = ABORTED;\n      jsonpDone && jsonpDone();\n      xhr && xhr.abort();\n    }\n\n    function completeRequest(callback, status, response, headersString, statusText) {\n      // cancel timeout and subsequent timeout promise resolution\n      timeoutId && $browserDefer.cancel(timeoutId);\n      jsonpDone = xhr = null;\n\n      // fix status code when it is 0 (0 status is undocumented).\n      // Occurs when accessing file resources or on Android 4.1 stock browser\n      // while retrieving files from application cache.\n      if (status === 0) {\n        status = response ? 200 : urlResolve(url).protocol == 'file' ? 404 : 0;\n      }\n\n      // normalize IE bug (http://bugs.jquery.com/ticket/1450)\n      status = status === 1223 ? 204 : status;\n      statusText = statusText || '';\n\n      callback(status, response, headersString, statusText);\n      $browser.$$completeOutstandingRequest(noop);\n    }\n  };\n\n  function jsonpReq(url, callbackId, done) {\n    // we can't use jQuery/jqLite here because jQuery does crazy shit with script elements, e.g.:\n    // - fetches local scripts via XHR and evals them\n    // - adds and immediately removes script elements from the document\n    var script = rawDocument.createElement('script'), callback = null;\n    script.type = \"text/javascript\";\n    script.src = url;\n    script.async = true;\n\n    callback = function(event) {\n      removeEventListenerFn(script, \"load\", callback);\n      removeEventListenerFn(script, \"error\", callback);\n      rawDocument.body.removeChild(script);\n      script = null;\n      var status = -1;\n      var text = \"unknown\";\n\n      if (event) {\n        if (event.type === \"load\" && !callbacks[callbackId].called) {\n          event = { type: \"error\" };\n        }\n        text = event.type;\n        status = event.type === \"error\" ? 404 : 200;\n      }\n\n      if (done) {\n        done(status, text);\n      }\n    };\n\n    addEventListenerFn(script, \"load\", callback);\n    addEventListenerFn(script, \"error\", callback);\n\n    if (msie <= 8) {\n      script.onreadystatechange = function() {\n        if (isString(script.readyState) && /loaded|complete/.test(script.readyState)) {\n          script.onreadystatechange = null;\n          callback({\n            type: 'load'\n          });\n        }\n      };\n    }\n\n    rawDocument.body.appendChild(script);\n    return callback;\n  }\n}\n\nvar $interpolateMinErr = minErr('$interpolate');\n\n/**\n * @ngdoc provider\n * @name $interpolateProvider\n * @kind function\n *\n * @description\n *\n * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.\n *\n * @example\n<example module=\"customInterpolationApp\">\n<file name=\"index.html\">\n<script>\n  var customInterpolationApp = angular.module('customInterpolationApp', []);\n\n  customInterpolationApp.config(function($interpolateProvider) {\n    $interpolateProvider.startSymbol('//');\n    $interpolateProvider.endSymbol('//');\n  });\n\n\n  customInterpolationApp.controller('DemoController', function() {\n      this.label = \"This binding is brought you by // interpolation symbols.\";\n  });\n</script>\n<div ng-app=\"App\" ng-controller=\"DemoController as demo\">\n    //demo.label//\n</div>\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  it('should interpolate binding with custom symbols', function() {\n    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');\n  });\n</file>\n</example>\n */\nfunction $InterpolateProvider() {\n  var startSymbol = '{{';\n  var endSymbol = '}}';\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#startSymbol\n   * @description\n   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.\n   *\n   * @param {string=} value new value to set the starting symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.startSymbol = function(value){\n    if (value) {\n      startSymbol = value;\n      return this;\n    } else {\n      return startSymbol;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#endSymbol\n   * @description\n   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n   *\n   * @param {string=} value new value to set the ending symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.endSymbol = function(value){\n    if (value) {\n      endSymbol = value;\n      return this;\n    } else {\n      return endSymbol;\n    }\n  };\n\n\n  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {\n    var startSymbolLength = startSymbol.length,\n        endSymbolLength = endSymbol.length;\n\n    /**\n     * @ngdoc service\n     * @name $interpolate\n     * @kind function\n     *\n     * @requires $parse\n     * @requires $sce\n     *\n     * @description\n     *\n     * Compiles a string with markup into an interpolation function. This service is used by the\n     * HTML {@link ng.$compile $compile} service for data binding. See\n     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the\n     * interpolation markup.\n     *\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var exp = $interpolate('Hello {{name | uppercase}}!');\n     *   expect(exp({name:'Angular'}).toEqual('Hello ANGULAR!');\n     * ```\n     *\n     *\n     * @param {string} text The text with markup to interpolate.\n     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have\n     *    embedded expression in order to return an interpolation function. Strings with no\n     *    embedded expression will return null for the interpolation function.\n     * @param {string=} trustedContext when provided, the returned function passes the interpolated\n     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,\n     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that\n     *    provides Strict Contextual Escaping for details.\n     * @returns {function(context)} an interpolation function which is used to compute the\n     *    interpolated string. The function has these parameters:\n     *\n     *    * `context`: an object against which any expressions embedded in the strings are evaluated\n     *      against.\n     *\n     */\n    function $interpolate(text, mustHaveExpression, trustedContext) {\n      var startIndex,\n          endIndex,\n          index = 0,\n          parts = [],\n          length = text.length,\n          hasInterpolation = false,\n          fn,\n          exp,\n          concat = [];\n\n      while(index < length) {\n        if ( ((startIndex = text.indexOf(startSymbol, index)) != -1) &&\n             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) != -1) ) {\n          (index != startIndex) && parts.push(text.substring(index, startIndex));\n          parts.push(fn = $parse(exp = text.substring(startIndex + startSymbolLength, endIndex)));\n          fn.exp = exp;\n          index = endIndex + endSymbolLength;\n          hasInterpolation = true;\n        } else {\n          // we did not find anything, so we have to add the remainder to the parts array\n          (index != length) && parts.push(text.substring(index));\n          index = length;\n        }\n      }\n\n      if (!(length = parts.length)) {\n        // we added, nothing, must have been an empty string.\n        parts.push('');\n        length = 1;\n      }\n\n      // Concatenating expressions makes it hard to reason about whether some combination of\n      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a\n      // single expression be used for iframe[src], object[src], etc., we ensure that the value\n      // that's used is assigned or constructed by some JS code somewhere that is more testable or\n      // make it obvious that you bound the value to some user controlled value.  This helps reduce\n      // the load when auditing for XSS issues.\n      if (trustedContext && parts.length > 1) {\n          throw $interpolateMinErr('noconcat',\n              \"Error while interpolating: {0}\\nStrict Contextual Escaping disallows \" +\n              \"interpolations that concatenate multiple expressions when a trusted value is \" +\n              \"required.  See http://docs.angularjs.org/api/ng.$sce\", text);\n      }\n\n      if (!mustHaveExpression  || hasInterpolation) {\n        concat.length = length;\n        fn = function(context) {\n          try {\n            for(var i = 0, ii = length, part; i<ii; i++) {\n              if (typeof (part = parts[i]) == 'function') {\n                part = part(context);\n                if (trustedContext) {\n                  part = $sce.getTrusted(trustedContext, part);\n                } else {\n                  part = $sce.valueOf(part);\n                }\n                if (part == null) { // null || undefined\n                  part = '';\n                } else {\n                  switch (typeof part) {\n                    case 'string':\n                    {\n                      break;\n                    }\n                    case 'number':\n                    {\n                      part = '' + part;\n                      break;\n                    }\n                    default:\n                    {\n                      part = toJson(part);\n                    }\n                  }\n                }\n              }\n              concat[i] = part;\n            }\n            return concat.join('');\n          }\n          catch(err) {\n            var newErr = $interpolateMinErr('interr', \"Can't interpolate: {0}\\n{1}\", text,\n                err.toString());\n            $exceptionHandler(newErr);\n          }\n        };\n        fn.exp = text;\n        fn.parts = parts;\n        return fn;\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#startSymbol\n     * @description\n     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.\n     *\n     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} start symbol.\n     */\n    $interpolate.startSymbol = function() {\n      return startSymbol;\n    };\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#endSymbol\n     * @description\n     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n     *\n     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} end symbol.\n     */\n    $interpolate.endSymbol = function() {\n      return endSymbol;\n    };\n\n    return $interpolate;\n  }];\n}\n\nfunction $IntervalProvider() {\n  this.$get = ['$rootScope', '$window', '$q',\n       function($rootScope,   $window,   $q) {\n    var intervals = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $interval\n      *\n      * @description\n      * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay`\n      * milliseconds.\n      *\n      * The return value of registering an interval function is a promise. This promise will be\n      * notified upon each tick of the interval, and will be resolved after `count` iterations, or\n      * run indefinitely if `count` is not defined. The value of the notification will be the\n      * number of iterations that have run.\n      * To cancel an interval, call `$interval.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n      * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n      * time.\n      *\n      * <div class=\"alert alert-warning\">\n      * **Note**: Intervals created by this service must be explicitly destroyed when you are finished\n      * with them.  In particular they are not automatically destroyed when a controller's scope or a\n      * directive's element are destroyed.\n      * You should take this into consideration and make sure to always cancel the interval at the\n      * appropriate moment.  See the example below for more details on how and when to do this.\n      * </div>\n      *\n      * @param {function()} fn A function that should be called repeatedly.\n      * @param {number} delay Number of milliseconds between each function call.\n      * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n      *   indefinitely.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @returns {promise} A promise which will be notified on each iteration.\n      *\n      * @example\n      * <example module=\"intervalExample\">\n      * <file name=\"index.html\">\n      *   <script>\n      *     angular.module('intervalExample', [])\n      *       .controller('ExampleController', ['$scope', '$interval',\n      *         function($scope, $interval) {\n      *           $scope.format = 'M/d/yy h:mm:ss a';\n      *           $scope.blood_1 = 100;\n      *           $scope.blood_2 = 120;\n      *\n      *           var stop;\n      *           $scope.fight = function() {\n      *             // Don't start a new fight if we are already fighting\n      *             if ( angular.isDefined(stop) ) return;\n      *\n      *             stop = $interval(function() {\n      *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {\n      *                 $scope.blood_1 = $scope.blood_1 - 3;\n      *                 $scope.blood_2 = $scope.blood_2 - 4;\n      *               } else {\n      *                 $scope.stopFight();\n      *               }\n      *             }, 100);\n      *           };\n      *\n      *           $scope.stopFight = function() {\n      *             if (angular.isDefined(stop)) {\n      *               $interval.cancel(stop);\n      *               stop = undefined;\n      *             }\n      *           };\n      *\n      *           $scope.resetFight = function() {\n      *             $scope.blood_1 = 100;\n      *             $scope.blood_2 = 120;\n      *           };\n      *\n      *           $scope.$on('$destroy', function() {\n      *             // Make sure that the interval is destroyed too\n      *             $scope.stopFight();\n      *           });\n      *         }])\n      *       // Register the 'myCurrentTime' directive factory method.\n      *       // We inject $interval and dateFilter service since the factory method is DI.\n      *       .directive('myCurrentTime', ['$interval', 'dateFilter',\n      *         function($interval, dateFilter) {\n      *           // return the directive link function. (compile function not needed)\n      *           return function(scope, element, attrs) {\n      *             var format,  // date format\n      *                 stopTime; // so that we can cancel the time updates\n      *\n      *             // used to update the UI\n      *             function updateTime() {\n      *               element.text(dateFilter(new Date(), format));\n      *             }\n      *\n      *             // watch the expression, and update the UI on change.\n      *             scope.$watch(attrs.myCurrentTime, function(value) {\n      *               format = value;\n      *               updateTime();\n      *             });\n      *\n      *             stopTime = $interval(updateTime, 1000);\n      *\n      *             // listen on DOM destroy (removal) event, and cancel the next UI update\n      *             // to prevent updating time after the DOM element was removed.\n      *             element.bind('$destroy', function() {\n      *               $interval.cancel(stopTime);\n      *             });\n      *           }\n      *         }]);\n      *   </script>\n      *\n      *   <div>\n      *     <div ng-controller=\"ExampleController\">\n      *       Date format: <input ng-model=\"format\"> <hr/>\n      *       Current time is: <span my-current-time=\"format\"></span>\n      *       <hr/>\n      *       Blood 1 : <font color='red'>{{blood_1}}</font>\n      *       Blood 2 : <font color='red'>{{blood_2}}</font>\n      *       <button type=\"button\" data-ng-click=\"fight()\">Fight</button>\n      *       <button type=\"button\" data-ng-click=\"stopFight()\">StopFight</button>\n      *       <button type=\"button\" data-ng-click=\"resetFight()\">resetFight</button>\n      *     </div>\n      *   </div>\n      *\n      * </file>\n      * </example>\n      */\n    function interval(fn, delay, count, invokeApply) {\n      var setInterval = $window.setInterval,\n          clearInterval = $window.clearInterval,\n          deferred = $q.defer(),\n          promise = deferred.promise,\n          iteration = 0,\n          skipApply = (isDefined(invokeApply) && !invokeApply);\n\n      count = isDefined(count) ? count : 0;\n\n      promise.then(null, null, fn);\n\n      promise.$$intervalId = setInterval(function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          deferred.resolve(iteration);\n          clearInterval(promise.$$intervalId);\n          delete intervals[promise.$$intervalId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n\n      }, delay);\n\n      intervals[promise.$$intervalId] = deferred;\n\n      return promise;\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $interval#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`.\n      *\n      * @param {promise} promise returned by the `$interval` function.\n      * @returns {boolean} Returns `true` if the task was successfully canceled.\n      */\n    interval.cancel = function(promise) {\n      if (promise && promise.$$intervalId in intervals) {\n        intervals[promise.$$intervalId].reject('canceled');\n        $window.clearInterval(promise.$$intervalId);\n        delete intervals[promise.$$intervalId];\n        return true;\n      }\n      return false;\n    };\n\n    return interval;\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $locale\n *\n * @description\n * $locale service provides localization rules for various Angular components. As of right now the\n * only public api is:\n *\n * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)\n */\nfunction $LocaleProvider(){\n  this.$get = function() {\n    return {\n      id: 'en-us',\n\n      NUMBER_FORMATS: {\n        DECIMAL_SEP: '.',\n        GROUP_SEP: ',',\n        PATTERNS: [\n          { // Decimal Pattern\n            minInt: 1,\n            minFrac: 0,\n            maxFrac: 3,\n            posPre: '',\n            posSuf: '',\n            negPre: '-',\n            negSuf: '',\n            gSize: 3,\n            lgSize: 3\n          },{ //Currency Pattern\n            minInt: 1,\n            minFrac: 2,\n            maxFrac: 2,\n            posPre: '\\u00A4',\n            posSuf: '',\n            negPre: '(\\u00A4',\n            negSuf: ')',\n            gSize: 3,\n            lgSize: 3\n          }\n        ],\n        CURRENCY_SYM: '$'\n      },\n\n      DATETIME_FORMATS: {\n        MONTH:\n            'January,February,March,April,May,June,July,August,September,October,November,December'\n            .split(','),\n        SHORTMONTH:  'Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec'.split(','),\n        DAY: 'Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday'.split(','),\n        SHORTDAY: 'Sun,Mon,Tue,Wed,Thu,Fri,Sat'.split(','),\n        AMPMS: ['AM','PM'],\n        medium: 'MMM d, y h:mm:ss a',\n        short: 'M/d/yy h:mm a',\n        fullDate: 'EEEE, MMMM d, y',\n        longDate: 'MMMM d, y',\n        mediumDate: 'MMM d, y',\n        shortDate: 'M/d/yy',\n        mediumTime: 'h:mm:ss a',\n        shortTime: 'h:mm a'\n      },\n\n      pluralCat: function(num) {\n        if (num === 1) {\n          return 'one';\n        }\n        return 'other';\n      }\n    };\n  };\n}\n\nvar PATH_MATCH = /^([^\\?#]*)(\\?([^#]*))?(#(.*))?$/,\n    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};\nvar $locationMinErr = minErr('$location');\n\n\n/**\n * Encode path using encodeUriSegment, ignoring forward slashes\n *\n * @param {string} path Path to encode\n * @returns {string}\n */\nfunction encodePath(path) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    segments[i] = encodeUriSegment(segments[i]);\n  }\n\n  return segments.join('/');\n}\n\nfunction parseAbsoluteUrl(absoluteUrl, locationObj, appBase) {\n  var parsedUrl = urlResolve(absoluteUrl, appBase);\n\n  locationObj.$$protocol = parsedUrl.protocol;\n  locationObj.$$host = parsedUrl.hostname;\n  locationObj.$$port = int(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;\n}\n\n\nfunction parseAppUrl(relativeUrl, locationObj, appBase) {\n  var prefixed = (relativeUrl.charAt(0) !== '/');\n  if (prefixed) {\n    relativeUrl = '/' + relativeUrl;\n  }\n  var match = urlResolve(relativeUrl, appBase);\n  locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ?\n      match.pathname.substring(1) : match.pathname);\n  locationObj.$$search = parseKeyValue(match.search);\n  locationObj.$$hash = decodeURIComponent(match.hash);\n\n  // make sure path starts with '/';\n  if (locationObj.$$path && locationObj.$$path.charAt(0) != '/') {\n    locationObj.$$path = '/' + locationObj.$$path;\n  }\n}\n\n\n/**\n *\n * @param {string} begin\n * @param {string} whole\n * @returns {string} returns text from whole after begin or undefined if it does not begin with\n *                   expected string.\n */\nfunction beginsWith(begin, whole) {\n  if (whole.indexOf(begin) === 0) {\n    return whole.substr(begin.length);\n  }\n}\n\n\nfunction stripHash(url) {\n  var index = url.indexOf('#');\n  return index == -1 ? url : url.substr(0, index);\n}\n\nfunction trimEmptyHash(url) {\n  return url.replace(/(#.+)|#$/, '$1');\n}\n\n\nfunction stripFile(url) {\n  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);\n}\n\n/* return the server only (scheme://host:port) */\nfunction serverBase(url) {\n  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));\n}\n\n\n/**\n * LocationHtml5Url represents an url\n * This object is exposed as $location service when HTML5 mode is enabled and supported\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} basePrefix url path prefix\n */\nfunction LocationHtml5Url(appBase, basePrefix) {\n  this.$$html5 = true;\n  basePrefix = basePrefix || '';\n  var appBaseNoFile = stripFile(appBase);\n  parseAbsoluteUrl(appBase, this, appBase);\n\n\n  /**\n   * Parse given html5 (regular) url string into properties\n   * @param {string} newAbsoluteUrl HTML5 url\n   * @private\n   */\n  this.$$parse = function(url) {\n    var pathUrl = beginsWith(appBaseNoFile, url);\n    if (!isString(pathUrl)) {\n      throw $locationMinErr('ipthprfx', 'Invalid url \"{0}\", missing path prefix \"{1}\".', url,\n          appBaseNoFile);\n    }\n\n    parseAppUrl(pathUrl, this, appBase);\n\n    if (!this.$$path) {\n      this.$$path = '/';\n    }\n\n    this.$$compose();\n  };\n\n  /**\n   * Compose url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/'\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    var appUrl, prevAppUrl;\n    var rewrittenUrl;\n\n    if ( (appUrl = beginsWith(appBase, url)) !== undefined ) {\n      prevAppUrl = appUrl;\n      if ( (appUrl = beginsWith(basePrefix, appUrl)) !== undefined ) {\n        rewrittenUrl = appBaseNoFile + (beginsWith('/', appUrl) || appUrl);\n      } else {\n        rewrittenUrl = appBase + prevAppUrl;\n      }\n    } else if ( (appUrl = beginsWith(appBaseNoFile, url)) !== undefined ) {\n      rewrittenUrl = appBaseNoFile + appUrl;\n    } else if (appBaseNoFile == url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents url\n * This object is exposed as $location service when developer doesn't opt into html5 mode.\n * It also serves as the base class for html5 mode fallback on legacy browsers.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangUrl(appBase, hashPrefix) {\n  var appBaseNoFile = stripFile(appBase);\n\n  parseAbsoluteUrl(appBase, this, appBase);\n\n\n  /**\n   * Parse given hashbang url into properties\n   * @param {string} url Hashbang url\n   * @private\n   */\n  this.$$parse = function(url) {\n    var withoutBaseUrl = beginsWith(appBase, url) || beginsWith(appBaseNoFile, url);\n    var withoutHashUrl = withoutBaseUrl.charAt(0) == '#'\n        ? beginsWith(hashPrefix, withoutBaseUrl)\n        : (this.$$html5)\n          ? withoutBaseUrl\n          : '';\n\n    if (!isString(withoutHashUrl)) {\n      throw $locationMinErr('ihshprfx', 'Invalid url \"{0}\", missing hash prefix \"{1}\".', url,\n          hashPrefix);\n    }\n    parseAppUrl(withoutHashUrl, this, appBase);\n\n    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);\n\n    this.$$compose();\n\n    /*\n     * In Windows, on an anchor node on documents loaded from\n     * the filesystem, the browser will return a pathname\n     * prefixed with the drive name ('/C:/path') when a\n     * pathname without a drive is set:\n     *  * a.setAttribute('href', '/foo')\n     *   * a.pathname === '/C:/foo' //true\n     *\n     * Inside of Angular, we're always using pathnames that\n     * do not include drive names for routing.\n     */\n    function removeWindowsDriveName (path, url, base) {\n      /*\n      Matches paths for file protocol on windows,\n      such as /C:/foo/bar, and captures only /foo/bar.\n      */\n      var windowsFilePathExp = /^\\/[A-Z]:(\\/.*)/;\n\n      var firstPathSegmentMatch;\n\n      //Get the relative path from the input URL.\n      if (url.indexOf(base) === 0) {\n        url = url.replace(base, '');\n      }\n\n      // The input URL intentionally contains a first path segment that ends with a colon.\n      if (windowsFilePathExp.exec(url)) {\n        return path;\n      }\n\n      firstPathSegmentMatch = windowsFilePathExp.exec(path);\n      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;\n    }\n  };\n\n  /**\n   * Compose hashbang url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if(stripHash(appBase) == stripHash(url)) {\n      this.$$parse(url);\n      return true;\n    }\n    return false;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents url\n * This object is exposed as $location service when html5 history api is enabled but the browser\n * does not support it.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangInHtml5Url(appBase, hashPrefix) {\n  this.$$html5 = true;\n  LocationHashbangUrl.apply(this, arguments);\n\n  var appBaseNoFile = stripFile(appBase);\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    var rewrittenUrl;\n    var appUrl;\n\n    if ( appBase == stripHash(url) ) {\n      rewrittenUrl = url;\n    } else if ( (appUrl = beginsWith(appBaseNoFile, url)) ) {\n      rewrittenUrl = appBase + hashPrefix + appUrl;\n    } else if ( appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    // include hashPrefix in $$absUrl when $$url is empty so IE8 & 9 do not reload page because of removal of '#'\n    this.$$absUrl = appBase + hashPrefix + this.$$url;\n  };\n\n}\n\n\nLocationHashbangInHtml5Url.prototype =\n  LocationHashbangUrl.prototype =\n  LocationHtml5Url.prototype = {\n\n  /**\n   * Are we in html5 mode?\n   * @private\n   */\n  $$html5: false,\n\n  /**\n   * Has any change been replacing ?\n   * @private\n   */\n  $$replace: false,\n\n  /**\n   * @ngdoc method\n   * @name $location#absUrl\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return full url representation with all segments encoded according to rules specified in\n   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).\n   *\n   * @return {string} full url\n   */\n  absUrl: locationGetter('$$absUrl'),\n\n  /**\n   * @ngdoc method\n   * @name $location#url\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return url (e.g. `/path?a=b#hash`) when called without any parameter.\n   *\n   * Change path, search and hash, when called with parameter and return `$location`.\n   *\n   * @param {string=} url New url without base prefix (e.g. `/path?a=b#hash`)\n   * @return {string} url\n   */\n  url: function(url) {\n    if (isUndefined(url))\n      return this.$$url;\n\n    var match = PATH_MATCH.exec(url);\n    if (match[1]) this.path(decodeURIComponent(match[1]));\n    if (match[2] || match[1]) this.search(match[3] || '');\n    this.hash(match[5] || '');\n\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#protocol\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return protocol of current url.\n   *\n   * @return {string} protocol of current url\n   */\n  protocol: locationGetter('$$protocol'),\n\n  /**\n   * @ngdoc method\n   * @name $location#host\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return host of current url.\n   *\n   * @return {string} host of current url.\n   */\n  host: locationGetter('$$host'),\n\n  /**\n   * @ngdoc method\n   * @name $location#port\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return port of current url.\n   *\n   * @return {Number} port\n   */\n  port: locationGetter('$$port'),\n\n  /**\n   * @ngdoc method\n   * @name $location#path\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return path of current url when called without any parameter.\n   *\n   * Change path when called with parameter and return `$location`.\n   *\n   * Note: Path should always begin with forward slash (/), this method will add the forward slash\n   * if it is missing.\n   *\n   * @param {(string|number)=} path New path\n   * @return {string} path\n   */\n  path: locationGetterSetter('$$path', function(path) {\n    path = path !== null ? path.toString() : '';\n    return path.charAt(0) == '/' ? path : '/' + path;\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#search\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return search part (as object) of current url when called without any parameter.\n   *\n   * Change search part when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var searchObject = $location.search();\n   * // => {foo: 'bar', baz: 'xoxo'}\n   *\n   *\n   * // set foo to 'yipee'\n   * $location.search('foo', 'yipee');\n   * // => $location\n   * ```\n   *\n   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or\n   * hash object.\n   *\n   * When called with a single argument the method acts as a setter, setting the `search` component\n   * of `$location` to the specified value.\n   *\n   * If the argument is a hash object containing an array of values, these values will be encoded\n   * as duplicate search parameters in the url.\n   *\n   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`\n   * will override only a single search property.\n   *\n   * If `paramValue` is an array, it will override the property of the `search` component of\n   * `$location` specified via the first argument.\n   *\n   * If `paramValue` is `null`, the property specified via the first argument will be deleted.\n   *\n   * If `paramValue` is `true`, the property specified via the first argument will be added with no\n   * value nor trailing equal sign.\n   *\n   * @return {Object} If called with no arguments returns the parsed `search` object. If called with\n   * one or more arguments returns `$location` object itself.\n   */\n  search: function(search, paramValue) {\n    switch (arguments.length) {\n      case 0:\n        return this.$$search;\n      case 1:\n        if (isString(search) || isNumber(search)) {\n          search = search.toString();\n          this.$$search = parseKeyValue(search);\n        } else if (isObject(search)) {\n          // remove object undefined or null properties\n          forEach(search, function(value, key) {\n            if (value == null) delete search[key];\n          });\n\n          this.$$search = search;\n        } else {\n          throw $locationMinErr('isrcharg',\n              'The first argument of the `$location#search()` call must be a string or an object.');\n        }\n        break;\n      default:\n        if (isUndefined(paramValue) || paramValue === null) {\n          delete this.$$search[search];\n        } else {\n          this.$$search[search] = paramValue;\n        }\n    }\n\n    this.$$compose();\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#hash\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return hash fragment when called without any parameter.\n   *\n   * Change hash fragment when called with parameter and return `$location`.\n   *\n   * @param {(string|number)=} hash New hash fragment\n   * @return {string} hash\n   */\n  hash: locationGetterSetter('$$hash', function(hash) {\n    return hash !== null ? hash.toString() : '';\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#replace\n   *\n   * @description\n   * If called, all changes to $location during current `$digest` will be replacing current history\n   * record, instead of adding new one.\n   */\n  replace: function() {\n    this.$$replace = true;\n    return this;\n  }\n};\n\nfunction locationGetter(property) {\n  return function() {\n    return this[property];\n  };\n}\n\n\nfunction locationGetterSetter(property, preprocess) {\n  return function(value) {\n    if (isUndefined(value))\n      return this[property];\n\n    this[property] = preprocess(value);\n    this.$$compose();\n\n    return this;\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $location\n *\n * @requires $rootElement\n *\n * @description\n * The $location service parses the URL in the browser address bar (based on the\n * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL\n * available to your application. Changes to the URL in the address bar are reflected into\n * $location service and changes to $location are reflected into the browser address bar.\n *\n * **The $location service:**\n *\n * - Exposes the current URL in the browser address bar, so you can\n *   - Watch and observe the URL.\n *   - Change the URL.\n * - Synchronizes the URL with the browser when the user\n *   - Changes the address bar.\n *   - Clicks the back or forward button (or clicks a History link).\n *   - Clicks on a link.\n * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).\n *\n * For more information see {@link guide/$location Developer Guide: Using $location}\n */\n\n/**\n * @ngdoc provider\n * @name $locationProvider\n * @description\n * Use the `$locationProvider` to configure how the application deep linking paths are stored.\n */\nfunction $LocationProvider(){\n  var hashPrefix = '',\n      html5Mode = false;\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#hashPrefix\n   * @description\n   * @param {string=} prefix Prefix for hash part (containing path and search)\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.hashPrefix = function(prefix) {\n    if (isDefined(prefix)) {\n      hashPrefix = prefix;\n      return this;\n    } else {\n      return hashPrefix;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#html5Mode\n   * @description\n   * @param {boolean=} mode Use HTML5 strategy if available.\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.html5Mode = function(mode) {\n    if (isDefined(mode)) {\n      html5Mode = mode;\n      return this;\n    } else {\n      return html5Mode;\n    }\n  };\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeStart\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted before a URL will change. This change can be prevented by calling\n   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more\n   * details about event object. Upon successful change\n   * {@link ng.$location#events_$locationChangeSuccess $locationChangeSuccess} is fired.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   */\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeSuccess\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted after a URL was changed.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   */\n\n  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement',\n      function( $rootScope,   $browser,   $sniffer,   $rootElement) {\n    var $location,\n        LocationMode,\n        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''\n        initialUrl = $browser.url(),\n        appBase;\n\n    if (html5Mode) {\n      appBase = serverBase(initialUrl) + (baseHref || '/');\n      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;\n    } else {\n      appBase = stripHash(initialUrl);\n      LocationMode = LocationHashbangUrl;\n    }\n    $location = new LocationMode(appBase, '#' + hashPrefix);\n    $location.$$parseLinkUrl(initialUrl, initialUrl);\n\n    var IGNORE_URI_REGEXP = /^\\s*(javascript|mailto):/i;\n\n    $rootElement.on('click', function(event) {\n      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)\n      // currently we open nice url link and redirect then\n\n      if (event.ctrlKey || event.metaKey || event.which == 2) return;\n\n      var elm = jqLite(event.target);\n\n      // traverse the DOM up to find first A tag\n      while (lowercase(elm[0].nodeName) !== 'a') {\n        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)\n        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;\n      }\n\n      var absHref = elm.prop('href');\n      // get the actual href attribute - see\n      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx\n      var relHref = elm.attr('href') || elm.attr('xlink:href');\n\n      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {\n        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during\n        // an animation.\n        absHref = urlResolve(absHref.animVal).href;\n      }\n\n      // Ignore when url is started with javascript: or mailto:\n      if (IGNORE_URI_REGEXP.test(absHref)) return;\n\n      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {\n        if ($location.$$parseLinkUrl(absHref, relHref)) {\n          // We do a preventDefault for all urls that are part of the angular application,\n          // in html5mode and also without, so that we are able to abort navigation without\n          // getting double entries in the location history.\n          event.preventDefault();\n          // update location manually\n          if ($location.absUrl() != $browser.url()) {\n            $rootScope.$apply();\n            // hack to work around FF6 bug 684208 when scenario runner clicks on links\n            window.angular['ff-684208-preventDefault'] = true;\n          }\n        }\n      }\n    });\n\n\n    // rewrite hashbang url <> html5 url\n    if ($location.absUrl() != initialUrl) {\n      $browser.url($location.absUrl(), true);\n    }\n\n    // update $location when $browser url changes\n    $browser.onUrlChange(function(newUrl) {\n      if ($location.absUrl() != newUrl) {\n        $rootScope.$evalAsync(function() {\n          var oldUrl = $location.absUrl();\n\n          $location.$$parse(newUrl);\n          if ($rootScope.$broadcast('$locationChangeStart', newUrl,\n                                    oldUrl).defaultPrevented) {\n            $location.$$parse(oldUrl);\n            $browser.url(oldUrl);\n          } else {\n            afterLocationChange(oldUrl);\n          }\n        });\n        if (!$rootScope.$$phase) $rootScope.$digest();\n      }\n    });\n\n    // update browser\n    var changeCounter = 0;\n    $rootScope.$watch(function $locationWatch() {\n      var oldUrl = trimEmptyHash($browser.url());\n      var newUrl = trimEmptyHash($location.absUrl());\n      var currentReplace = $location.$$replace;\n\n      if (!changeCounter || oldUrl != newUrl) {\n        changeCounter++;\n        $rootScope.$evalAsync(function() {\n          if ($rootScope.$broadcast('$locationChangeStart', $location.absUrl(), oldUrl).\n              defaultPrevented) {\n            $location.$$parse(oldUrl);\n          } else {\n            $browser.url($location.absUrl(), currentReplace);\n            afterLocationChange(oldUrl);\n          }\n        });\n      }\n      $location.$$replace = false;\n\n      return changeCounter;\n    });\n\n    return $location;\n\n    function afterLocationChange(oldUrl) {\n      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl);\n    }\n}];\n}\n\n/**\n * @ngdoc service\n * @name $log\n * @requires $window\n *\n * @description\n * Simple service for logging. Default implementation safely writes the message\n * into the browser's console (if present).\n *\n * The main purpose of this service is to simplify debugging and troubleshooting.\n *\n * The default is to log `debug` messages. You can use\n * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.\n *\n * @example\n   <example module=\"logExample\">\n     <file name=\"script.js\">\n       angular.module('logExample', [])\n         .controller('LogController', ['$scope', '$log', function($scope, $log) {\n           $scope.$log = $log;\n           $scope.message = 'Hello World!';\n         }]);\n     </file>\n     <file name=\"index.html\">\n       <div ng-controller=\"LogController\">\n         <p>Reload this page with open console, enter text and hit the log button...</p>\n         Message:\n         <input type=\"text\" ng-model=\"message\"/>\n         <button ng-click=\"$log.log(message)\">log</button>\n         <button ng-click=\"$log.warn(message)\">warn</button>\n         <button ng-click=\"$log.info(message)\">info</button>\n         <button ng-click=\"$log.error(message)\">error</button>\n       </div>\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc provider\n * @name $logProvider\n * @description\n * Use the `$logProvider` to configure how the application logs messages\n */\nfunction $LogProvider(){\n  var debug = true,\n      self = this;\n\n  /**\n   * @ngdoc method\n   * @name $logProvider#debugEnabled\n   * @description\n   * @param {boolean=} flag enable or disable debug level messages\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.debugEnabled = function(flag) {\n    if (isDefined(flag)) {\n      debug = flag;\n    return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = ['$window', function($window){\n    return {\n      /**\n       * @ngdoc method\n       * @name $log#log\n       *\n       * @description\n       * Write a log message\n       */\n      log: consoleLog('log'),\n\n      /**\n       * @ngdoc method\n       * @name $log#info\n       *\n       * @description\n       * Write an information message\n       */\n      info: consoleLog('info'),\n\n      /**\n       * @ngdoc method\n       * @name $log#warn\n       *\n       * @description\n       * Write a warning message\n       */\n      warn: consoleLog('warn'),\n\n      /**\n       * @ngdoc method\n       * @name $log#error\n       *\n       * @description\n       * Write an error message\n       */\n      error: consoleLog('error'),\n\n      /**\n       * @ngdoc method\n       * @name $log#debug\n       *\n       * @description\n       * Write a debug message\n       */\n      debug: (function () {\n        var fn = consoleLog('debug');\n\n        return function() {\n          if (debug) {\n            fn.apply(self, arguments);\n          }\n        };\n      }())\n    };\n\n    function formatError(arg) {\n      if (arg instanceof Error) {\n        if (arg.stack) {\n          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)\n              ? 'Error: ' + arg.message + '\\n' + arg.stack\n              : arg.stack;\n        } else if (arg.sourceURL) {\n          arg = arg.message + '\\n' + arg.sourceURL + ':' + arg.line;\n        }\n      }\n      return arg;\n    }\n\n    function consoleLog(type) {\n      var console = $window.console || {},\n          logFn = console[type] || console.log || noop,\n          hasApply = false;\n\n      // Note: reading logFn.apply throws an error in IE11 in IE8 document mode.\n      // The reason behind this is that console.log has type \"object\" in IE8...\n      try {\n        hasApply = !!logFn.apply;\n      } catch (e) {}\n\n      if (hasApply) {\n        return function() {\n          var args = [];\n          forEach(arguments, function(arg) {\n            args.push(formatError(arg));\n          });\n          return logFn.apply(console, args);\n        };\n      }\n\n      // we are IE which either doesn't have window.console => this is noop and we do nothing,\n      // or we are IE where console.log doesn't have apply so we log at least first 2 args\n      return function(arg1, arg2) {\n        logFn(arg1, arg2 == null ? '' : arg2);\n      };\n    }\n  }];\n}\n\nvar $parseMinErr = minErr('$parse');\nvar promiseWarningCache = {};\nvar promiseWarning;\n\n// Sandboxing Angular Expressions\n// ------------------------------\n// Angular expressions are generally considered safe because these expressions only have direct\n// access to `$scope` and locals. However, one can obtain the ability to execute arbitrary JS code by\n// obtaining a reference to native JS functions such as the Function constructor.\n//\n// As an example, consider the following Angular expression:\n//\n//   {}.toString.constructor('alert(\"evil JS code\")')\n//\n// This sandboxing technique is not perfect and doesn't aim to be. The goal is to prevent exploits\n// against the expression language, but not to prevent exploits that were enabled by exposing\n// sensitive JavaScript or browser APIs on Scope. Exposing such objects on a Scope is never a good\n// practice and therefore we are not even trying to protect against interaction with an object\n// explicitly exposed in this way.\n//\n// In general, it is not possible to access a Window object from an angular expression unless a\n// window or some DOM object that has a reference to window is published onto a Scope.\n// Similarly we prevent invocations of function known to be dangerous, as well as assignments to\n// native objects.\n//\n// See https://docs.angularjs.org/guide/security\n\n\nfunction ensureSafeMemberName(name, fullExpression) {\n  if (name === \"__defineGetter__\" || name === \"__defineSetter__\"\n      || name === \"__lookupGetter__\" || name === \"__lookupSetter__\"\n      || name === \"__proto__\") {\n    throw $parseMinErr('isecfld',\n        'Attempting to access a disallowed field in Angular expressions! '\n        + 'Expression: {0}', fullExpression);\n  }\n  return name;\n}\n\nfunction getStringValue(name, fullExpression) {\n  // From the JavaScript docs:\n  // Property names must be strings. This means that non-string objects cannot be used\n  // as keys in an object. Any non-string object, including a number, is typecasted\n  // into a string via the toString method.\n  //\n  // So, to ensure that we are checking the same `name` that JavaScript would use,\n  // we cast it to a string, if possible.\n  // Doing `name + ''` can cause a repl error if the result to `toString` is not a string,\n  // this is, this will handle objects that misbehave.\n  name = name + '';\n  if (!isString(name)) {\n    throw $parseMinErr('iseccst',\n        'Cannot convert object to primitive value! '\n        + 'Expression: {0}', fullExpression);\n  }\n  return name;\n}\n\nfunction ensureSafeObject(obj, fullExpression) {\n  // nifty check if obj is Function that is fast and works across iframes and other contexts\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n          'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isWindow(obj)\n        obj.document && obj.location && obj.alert && obj.setInterval) {\n      throw $parseMinErr('isecwindow',\n          'Referencing the Window in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isElement(obj)\n        obj.children && (obj.nodeName || (obj.prop && obj.attr && obj.find))) {\n      throw $parseMinErr('isecdom',\n          'Referencing DOM nodes in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// block Object so that we can't get hold of dangerous Object.* methods\n        obj === Object) {\n      throw $parseMinErr('isecobj',\n          'Referencing Object in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    }\n  }\n  return obj;\n}\n\nvar CALL = Function.prototype.call;\nvar APPLY = Function.prototype.apply;\nvar BIND = Function.prototype.bind;\n\nfunction ensureSafeFunction(obj, fullExpression) {\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n        'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    } else if (obj === CALL || obj === APPLY || (BIND && obj === BIND)) {\n      throw $parseMinErr('isecff',\n        'Referencing call, apply or bind in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    }\n  }\n}\n\nvar OPERATORS = {\n    /* jshint bitwise : false */\n    'null':function(){return null;},\n    'true':function(){return true;},\n    'false':function(){return false;},\n    undefined:noop,\n    '+':function(self, locals, a,b){\n      a=a(self, locals); b=b(self, locals);\n      if (isDefined(a)) {\n        if (isDefined(b)) {\n          return a + b;\n        }\n        return a;\n      }\n      return isDefined(b)?b:undefined;},\n    '-':function(self, locals, a,b){\n          a=a(self, locals); b=b(self, locals);\n          return (isDefined(a)?a:0)-(isDefined(b)?b:0);\n        },\n    '*':function(self, locals, a,b){return a(self, locals)*b(self, locals);},\n    '/':function(self, locals, a,b){return a(self, locals)/b(self, locals);},\n    '%':function(self, locals, a,b){return a(self, locals)%b(self, locals);},\n    '^':function(self, locals, a,b){return a(self, locals)^b(self, locals);},\n    '=':noop,\n    '===':function(self, locals, a, b){return a(self, locals)===b(self, locals);},\n    '!==':function(self, locals, a, b){return a(self, locals)!==b(self, locals);},\n    '==':function(self, locals, a,b){return a(self, locals)==b(self, locals);},\n    '!=':function(self, locals, a,b){return a(self, locals)!=b(self, locals);},\n    '<':function(self, locals, a,b){return a(self, locals)<b(self, locals);},\n    '>':function(self, locals, a,b){return a(self, locals)>b(self, locals);},\n    '<=':function(self, locals, a,b){return a(self, locals)<=b(self, locals);},\n    '>=':function(self, locals, a,b){return a(self, locals)>=b(self, locals);},\n    '&&':function(self, locals, a,b){return a(self, locals)&&b(self, locals);},\n    '||':function(self, locals, a,b){return a(self, locals)||b(self, locals);},\n    '&':function(self, locals, a,b){return a(self, locals)&b(self, locals);},\n//    '|':function(self, locals, a,b){return a|b;},\n    '|':function(self, locals, a,b){return b(self, locals)(self, locals, a(self, locals));},\n    '!':function(self, locals, a){return !a(self, locals);}\n};\n/* jshint bitwise: true */\nvar ESCAPE = {\"n\":\"\\n\", \"f\":\"\\f\", \"r\":\"\\r\", \"t\":\"\\t\", \"v\":\"\\v\", \"'\":\"'\", '\"':'\"'};\n\n\n/////////////////////////////////////////\n\n\n/**\n * @constructor\n */\nvar Lexer = function (options) {\n  this.options = options;\n};\n\nLexer.prototype = {\n  constructor: Lexer,\n\n  lex: function (text) {\n    this.text = text;\n\n    this.index = 0;\n    this.ch = undefined;\n    this.lastCh = ':'; // can start regexp\n\n    this.tokens = [];\n\n    while (this.index < this.text.length) {\n      this.ch = this.text.charAt(this.index);\n      if (this.is('\"\\'')) {\n        this.readString(this.ch);\n      } else if (this.isNumber(this.ch) || this.is('.') && this.isNumber(this.peek())) {\n        this.readNumber();\n      } else if (this.isIdent(this.ch)) {\n        this.readIdent();\n      } else if (this.is('(){}[].,;:?')) {\n        this.tokens.push({\n          index: this.index,\n          text: this.ch\n        });\n        this.index++;\n      } else if (this.isWhitespace(this.ch)) {\n        this.index++;\n        continue;\n      } else {\n        var ch2 = this.ch + this.peek();\n        var ch3 = ch2 + this.peek(2);\n        var fn = OPERATORS[this.ch];\n        var fn2 = OPERATORS[ch2];\n        var fn3 = OPERATORS[ch3];\n        if (fn3) {\n          this.tokens.push({index: this.index, text: ch3, fn: fn3});\n          this.index += 3;\n        } else if (fn2) {\n          this.tokens.push({index: this.index, text: ch2, fn: fn2});\n          this.index += 2;\n        } else if (fn) {\n          this.tokens.push({\n            index: this.index,\n            text: this.ch,\n            fn: fn\n          });\n          this.index += 1;\n        } else {\n          this.throwError('Unexpected next character ', this.index, this.index + 1);\n        }\n      }\n      this.lastCh = this.ch;\n    }\n    return this.tokens;\n  },\n\n  is: function(chars) {\n    return chars.indexOf(this.ch) !== -1;\n  },\n\n  was: function(chars) {\n    return chars.indexOf(this.lastCh) !== -1;\n  },\n\n  peek: function(i) {\n    var num = i || 1;\n    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;\n  },\n\n  isNumber: function(ch) {\n    return ('0' <= ch && ch <= '9');\n  },\n\n  isWhitespace: function(ch) {\n    // IE treats non-breaking space as \\u00A0\n    return (ch === ' ' || ch === '\\r' || ch === '\\t' ||\n            ch === '\\n' || ch === '\\v' || ch === '\\u00A0');\n  },\n\n  isIdent: function(ch) {\n    return ('a' <= ch && ch <= 'z' ||\n            'A' <= ch && ch <= 'Z' ||\n            '_' === ch || ch === '$');\n  },\n\n  isExpOperator: function(ch) {\n    return (ch === '-' || ch === '+' || this.isNumber(ch));\n  },\n\n  throwError: function(error, start, end) {\n    end = end || this.index;\n    var colStr = (isDefined(start)\n            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'\n            : ' ' + end);\n    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',\n        error, colStr, this.text);\n  },\n\n  readNumber: function() {\n    var number = '';\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = lowercase(this.text.charAt(this.index));\n      if (ch == '.' || this.isNumber(ch)) {\n        number += ch;\n      } else {\n        var peekCh = this.peek();\n        if (ch == 'e' && this.isExpOperator(peekCh)) {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            peekCh && this.isNumber(peekCh) &&\n            number.charAt(number.length - 1) == 'e') {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            (!peekCh || !this.isNumber(peekCh)) &&\n            number.charAt(number.length - 1) == 'e') {\n          this.throwError('Invalid exponent');\n        } else {\n          break;\n        }\n      }\n      this.index++;\n    }\n    number = 1 * number;\n    this.tokens.push({\n      index: start,\n      text: number,\n      literal: true,\n      constant: true,\n      fn: function() { return number; }\n    });\n  },\n\n  readIdent: function() {\n    var parser = this;\n\n    var ident = '';\n    var start = this.index;\n\n    var lastDot, peekIndex, methodName, ch;\n\n    while (this.index < this.text.length) {\n      ch = this.text.charAt(this.index);\n      if (ch === '.' || this.isIdent(ch) || this.isNumber(ch)) {\n        if (ch === '.') lastDot = this.index;\n        ident += ch;\n      } else {\n        break;\n      }\n      this.index++;\n    }\n\n    //check if this is not a method invocation and if it is back out to last dot\n    if (lastDot) {\n      peekIndex = this.index;\n      while (peekIndex < this.text.length) {\n        ch = this.text.charAt(peekIndex);\n        if (ch === '(') {\n          methodName = ident.substr(lastDot - start + 1);\n          ident = ident.substr(0, lastDot - start);\n          this.index = peekIndex;\n          break;\n        }\n        if (this.isWhitespace(ch)) {\n          peekIndex++;\n        } else {\n          break;\n        }\n      }\n    }\n\n\n    var token = {\n      index: start,\n      text: ident\n    };\n\n    // OPERATORS is our own object so we don't need to use special hasOwnPropertyFn\n    if (OPERATORS.hasOwnProperty(ident)) {\n      token.fn = OPERATORS[ident];\n      token.literal = true;\n      token.constant = true;\n    } else {\n      var getter = getterFn(ident, this.options, this.text);\n      token.fn = extend(function(self, locals) {\n        return (getter(self, locals));\n      }, {\n        assign: function(self, value) {\n          return setter(self, ident, value, parser.text, parser.options);\n        }\n      });\n    }\n\n    this.tokens.push(token);\n\n    if (methodName) {\n      this.tokens.push({\n        index:lastDot,\n        text: '.'\n      });\n      this.tokens.push({\n        index: lastDot + 1,\n        text: methodName\n      });\n    }\n  },\n\n  readString: function(quote) {\n    var start = this.index;\n    this.index++;\n    var string = '';\n    var rawString = quote;\n    var escape = false;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      rawString += ch;\n      if (escape) {\n        if (ch === 'u') {\n          var hex = this.text.substring(this.index + 1, this.index + 5);\n          if (!hex.match(/[\\da-f]{4}/i))\n            this.throwError('Invalid unicode escape [\\\\u' + hex + ']');\n          this.index += 4;\n          string += String.fromCharCode(parseInt(hex, 16));\n        } else {\n          var rep = ESCAPE[ch];\n          string = string + (rep || ch);\n        }\n        escape = false;\n      } else if (ch === '\\\\') {\n        escape = true;\n      } else if (ch === quote) {\n        this.index++;\n        this.tokens.push({\n          index: start,\n          text: rawString,\n          string: string,\n          literal: true,\n          constant: true,\n          fn: function() { return string; }\n        });\n        return;\n      } else {\n        string += ch;\n      }\n      this.index++;\n    }\n    this.throwError('Unterminated quote', start);\n  }\n};\n\n\n/**\n * @constructor\n */\nvar Parser = function (lexer, $filter, options) {\n  this.lexer = lexer;\n  this.$filter = $filter;\n  this.options = options;\n};\n\nParser.ZERO = extend(function () {\n  return 0;\n}, {\n  constant: true\n});\n\nParser.prototype = {\n  constructor: Parser,\n\n  parse: function (text) {\n    this.text = text;\n\n    this.tokens = this.lexer.lex(text);\n\n    var value = this.statements();\n\n    if (this.tokens.length !== 0) {\n      this.throwError('is an unexpected token', this.tokens[0]);\n    }\n\n    value.literal = !!value.literal;\n    value.constant = !!value.constant;\n\n    return value;\n  },\n\n  primary: function () {\n    var primary;\n    if (this.expect('(')) {\n      primary = this.filterChain();\n      this.consume(')');\n    } else if (this.expect('[')) {\n      primary = this.arrayDeclaration();\n    } else if (this.expect('{')) {\n      primary = this.object();\n    } else {\n      var token = this.expect();\n      primary = token.fn;\n      if (!primary) {\n        this.throwError('not a primary expression', token);\n      }\n      primary.literal = !!token.literal;\n      primary.constant = !!token.constant;\n    }\n\n    var next, context;\n    while ((next = this.expect('(', '[', '.'))) {\n      if (next.text === '(') {\n        primary = this.functionCall(primary, context);\n        context = null;\n      } else if (next.text === '[') {\n        context = primary;\n        primary = this.objectIndex(primary);\n      } else if (next.text === '.') {\n        context = primary;\n        primary = this.fieldAccess(primary);\n      } else {\n        this.throwError('IMPOSSIBLE');\n      }\n    }\n    return primary;\n  },\n\n  throwError: function(msg, token) {\n    throw $parseMinErr('syntax',\n        'Syntax Error: Token \\'{0}\\' {1} at column {2} of the expression [{3}] starting at [{4}].',\n          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));\n  },\n\n  peekToken: function() {\n    if (this.tokens.length === 0)\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    return this.tokens[0];\n  },\n\n  peek: function(e1, e2, e3, e4) {\n    if (this.tokens.length > 0) {\n      var token = this.tokens[0];\n      var t = token.text;\n      if (t === e1 || t === e2 || t === e3 || t === e4 ||\n          (!e1 && !e2 && !e3 && !e4)) {\n        return token;\n      }\n    }\n    return false;\n  },\n\n  expect: function(e1, e2, e3, e4){\n    var token = this.peek(e1, e2, e3, e4);\n    if (token) {\n      this.tokens.shift();\n      return token;\n    }\n    return false;\n  },\n\n  consume: function(e1){\n    if (!this.expect(e1)) {\n      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());\n    }\n  },\n\n  unaryFn: function(fn, right) {\n    return extend(function(self, locals) {\n      return fn(self, locals, right);\n    }, {\n      constant:right.constant\n    });\n  },\n\n  ternaryFn: function(left, middle, right){\n    return extend(function(self, locals){\n      return left(self, locals) ? middle(self, locals) : right(self, locals);\n    }, {\n      constant: left.constant && middle.constant && right.constant\n    });\n  },\n\n  binaryFn: function(left, fn, right) {\n    return extend(function(self, locals) {\n      return fn(self, locals, left, right);\n    }, {\n      constant:left.constant && right.constant\n    });\n  },\n\n  statements: function() {\n    var statements = [];\n    while (true) {\n      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))\n        statements.push(this.filterChain());\n      if (!this.expect(';')) {\n        // optimize for the common case where there is only one statement.\n        // TODO(size): maybe we should not support multiple statements?\n        return (statements.length === 1)\n            ? statements[0]\n            : function(self, locals) {\n                var value;\n                for (var i = 0; i < statements.length; i++) {\n                  var statement = statements[i];\n                  if (statement) {\n                    value = statement(self, locals);\n                  }\n                }\n                return value;\n              };\n      }\n    }\n  },\n\n  filterChain: function() {\n    var left = this.expression();\n    var token;\n    while (true) {\n      if ((token = this.expect('|'))) {\n        left = this.binaryFn(left, token.fn, this.filter());\n      } else {\n        return left;\n      }\n    }\n  },\n\n  filter: function() {\n    var token = this.expect();\n    var fn = this.$filter(token.text);\n    var argsFn = [];\n    while (true) {\n      if ((token = this.expect(':'))) {\n        argsFn.push(this.expression());\n      } else {\n        var fnInvoke = function(self, locals, input) {\n          var args = [input];\n          for (var i = 0; i < argsFn.length; i++) {\n            args.push(argsFn[i](self, locals));\n          }\n          return fn.apply(self, args);\n        };\n        return function() {\n          return fnInvoke;\n        };\n      }\n    }\n  },\n\n  expression: function() {\n    return this.assignment();\n  },\n\n  assignment: function() {\n    var left = this.ternary();\n    var right;\n    var token;\n    if ((token = this.expect('='))) {\n      if (!left.assign) {\n        this.throwError('implies assignment but [' +\n            this.text.substring(0, token.index) + '] can not be assigned to', token);\n      }\n      right = this.ternary();\n      return function(scope, locals) {\n        return left.assign(scope, right(scope, locals), locals);\n      };\n    }\n    return left;\n  },\n\n  ternary: function() {\n    var left = this.logicalOR();\n    var middle;\n    var token;\n    if ((token = this.expect('?'))) {\n      middle = this.assignment();\n      if ((token = this.expect(':'))) {\n        return this.ternaryFn(left, middle, this.assignment());\n      } else {\n        this.throwError('expected :', token);\n      }\n    } else {\n      return left;\n    }\n  },\n\n  logicalOR: function() {\n    var left = this.logicalAND();\n    var token;\n    while (true) {\n      if ((token = this.expect('||'))) {\n        left = this.binaryFn(left, token.fn, this.logicalAND());\n      } else {\n        return left;\n      }\n    }\n  },\n\n  logicalAND: function() {\n    var left = this.equality();\n    var token;\n    if ((token = this.expect('&&'))) {\n      left = this.binaryFn(left, token.fn, this.logicalAND());\n    }\n    return left;\n  },\n\n  equality: function() {\n    var left = this.relational();\n    var token;\n    if ((token = this.expect('==','!=','===','!=='))) {\n      left = this.binaryFn(left, token.fn, this.equality());\n    }\n    return left;\n  },\n\n  relational: function() {\n    var left = this.additive();\n    var token;\n    if ((token = this.expect('<', '>', '<=', '>='))) {\n      left = this.binaryFn(left, token.fn, this.relational());\n    }\n    return left;\n  },\n\n  additive: function() {\n    var left = this.multiplicative();\n    var token;\n    while ((token = this.expect('+','-'))) {\n      left = this.binaryFn(left, token.fn, this.multiplicative());\n    }\n    return left;\n  },\n\n  multiplicative: function() {\n    var left = this.unary();\n    var token;\n    while ((token = this.expect('*','/','%'))) {\n      left = this.binaryFn(left, token.fn, this.unary());\n    }\n    return left;\n  },\n\n  unary: function() {\n    var token;\n    if (this.expect('+')) {\n      return this.primary();\n    } else if ((token = this.expect('-'))) {\n      return this.binaryFn(Parser.ZERO, token.fn, this.unary());\n    } else if ((token = this.expect('!'))) {\n      return this.unaryFn(token.fn, this.unary());\n    } else {\n      return this.primary();\n    }\n  },\n\n  fieldAccess: function(object) {\n    var parser = this;\n    var field = this.expect().text;\n    var getter = getterFn(field, this.options, this.text);\n\n    return extend(function(scope, locals, self) {\n      return getter(self || object(scope, locals));\n    }, {\n      assign: function(scope, value, locals) {\n        var o = object(scope, locals);\n        if (!o) object.assign(scope, o = {});\n        return setter(o, field, value, parser.text, parser.options);\n      }\n    });\n  },\n\n  objectIndex: function(obj) {\n    var parser = this;\n\n    var indexFn = this.expression();\n    this.consume(']');\n\n    return extend(function(self, locals) {\n      var o = obj(self, locals),\n          i = getStringValue(indexFn(self, locals), parser.text),\n          v, p;\n\n      ensureSafeMemberName(i, parser.text);\n      if (!o) return undefined;\n      v = ensureSafeObject(o[i], parser.text);\n      if (v && v.then && parser.options.unwrapPromises) {\n        p = v;\n        if (!('$$v' in v)) {\n          p.$$v = undefined;\n          p.then(function(val) { p.$$v = val; });\n        }\n        v = v.$$v;\n      }\n      return v;\n    }, {\n      assign: function(self, value, locals) {\n        var key = ensureSafeMemberName(getStringValue(indexFn(self, locals), parser.text), parser.text);\n        // prevent overwriting of Function.constructor which would break ensureSafeObject check\n        var o = ensureSafeObject(obj(self, locals), parser.text);\n        if (!o) obj.assign(self, o = {});\n        return o[key] = value;\n      }\n    });\n  },\n\n  functionCall: function(fn, contextGetter) {\n    var argsFn = [];\n    if (this.peekToken().text !== ')') {\n      do {\n        argsFn.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(')');\n\n    var parser = this;\n\n    return function(scope, locals) {\n      var args = [];\n      var context = contextGetter ? contextGetter(scope, locals) : scope;\n\n      for (var i = 0; i < argsFn.length; i++) {\n        args.push(ensureSafeObject(argsFn[i](scope, locals), parser.text));\n      }\n      var fnPtr = fn(scope, locals, context) || noop;\n\n      ensureSafeObject(context, parser.text);\n      ensureSafeFunction(fnPtr, parser.text);\n\n      // IE doesn't have apply for some native functions\n      var v = fnPtr.apply\n            ? fnPtr.apply(context, args)\n            : fnPtr(args[0], args[1], args[2], args[3], args[4]);\n\n      return ensureSafeObject(v, parser.text);\n    };\n  },\n\n  // This is used with json array declaration\n  arrayDeclaration: function () {\n    var elementFns = [];\n    var allConstant = true;\n    if (this.peekToken().text !== ']') {\n      do {\n        if (this.peek(']')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        var elementFn = this.expression();\n        elementFns.push(elementFn);\n        if (!elementFn.constant) {\n          allConstant = false;\n        }\n      } while (this.expect(','));\n    }\n    this.consume(']');\n\n    return extend(function(self, locals) {\n      var array = [];\n      for (var i = 0; i < elementFns.length; i++) {\n        array.push(elementFns[i](self, locals));\n      }\n      return array;\n    }, {\n      literal: true,\n      constant: allConstant\n    });\n  },\n\n  object: function () {\n    var keyValues = [];\n    var allConstant = true;\n    if (this.peekToken().text !== '}') {\n      do {\n        if (this.peek('}')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        var token = this.expect(),\n        key = token.string || token.text;\n        this.consume(':');\n        var value = this.expression();\n        keyValues.push({key: key, value: value});\n        if (!value.constant) {\n          allConstant = false;\n        }\n      } while (this.expect(','));\n    }\n    this.consume('}');\n\n    return extend(function(self, locals) {\n      var object = {};\n      for (var i = 0; i < keyValues.length; i++) {\n        var keyValue = keyValues[i];\n        object[keyValue.key] = keyValue.value(self, locals);\n      }\n      return object;\n    }, {\n      literal: true,\n      constant: allConstant\n    });\n  }\n};\n\n\n//////////////////////////////////////////////////\n// Parser helper functions\n//////////////////////////////////////////////////\n\nfunction setter(obj, path, setValue, fullExp, options) {\n  ensureSafeObject(obj, fullExp);\n\n  //needed?\n  options = options || {};\n\n  var element = path.split('.'), key;\n  for (var i = 0; element.length > 1; i++) {\n    key = ensureSafeMemberName(element.shift(), fullExp);\n    var propertyObj = ensureSafeObject(obj[key], fullExp);\n    if (!propertyObj) {\n      propertyObj = {};\n      obj[key] = propertyObj;\n    }\n    obj = propertyObj;\n    if (obj.then && options.unwrapPromises) {\n      promiseWarning(fullExp);\n      if (!(\"$$v\" in obj)) {\n        (function(promise) {\n          promise.then(function(val) { promise.$$v = val; }); }\n        )(obj);\n      }\n      if (obj.$$v === undefined) {\n        obj.$$v = {};\n      }\n      obj = obj.$$v;\n    }\n  }\n  key = ensureSafeMemberName(element.shift(), fullExp);\n  ensureSafeObject(obj[key], fullExp);\n  obj[key] = setValue;\n  return setValue;\n}\n\nvar getterFnCacheDefault = {};\nvar getterFnCacheExpensive = {};\n\nfunction isPossiblyDangerousMemberName(name) {\n  return name == 'constructor';\n}\n\n/**\n * Implementation of the \"Black Hole\" variant from:\n * - http://jsperf.com/angularjs-parse-getter/4\n * - http://jsperf.com/path-evaluation-simplified/7\n */\nfunction cspSafeGetterFn(key0, key1, key2, key3, key4, fullExp, options) {\n  ensureSafeMemberName(key0, fullExp);\n  ensureSafeMemberName(key1, fullExp);\n  ensureSafeMemberName(key2, fullExp);\n  ensureSafeMemberName(key3, fullExp);\n  ensureSafeMemberName(key4, fullExp);\n  var eso = function(o) {\n    return ensureSafeObject(o, fullExp);\n  };\n  var expensiveChecks = options.expensiveChecks;\n  var eso0 = (expensiveChecks || isPossiblyDangerousMemberName(key0)) ? eso : identity;\n  var eso1 = (expensiveChecks || isPossiblyDangerousMemberName(key1)) ? eso : identity;\n  var eso2 = (expensiveChecks || isPossiblyDangerousMemberName(key2)) ? eso : identity;\n  var eso3 = (expensiveChecks || isPossiblyDangerousMemberName(key3)) ? eso : identity;\n  var eso4 = (expensiveChecks || isPossiblyDangerousMemberName(key4)) ? eso : identity;\n\n  return !options.unwrapPromises\n      ? function cspSafeGetter(scope, locals) {\n          var pathVal = (locals && locals.hasOwnProperty(key0)) ? locals : scope;\n\n          if (pathVal == null) return pathVal;\n          pathVal = eso0(pathVal[key0]);\n\n          if (!key1) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso1(pathVal[key1]);\n\n          if (!key2) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso2(pathVal[key2]);\n\n          if (!key3) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso3(pathVal[key3]);\n\n          if (!key4) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso4(pathVal[key4]);\n\n          return pathVal;\n        }\n      : function cspSafePromiseEnabledGetter(scope, locals) {\n          var pathVal = (locals && locals.hasOwnProperty(key0)) ? locals : scope,\n              promise;\n\n          if (pathVal == null) return pathVal;\n\n          pathVal = eso0(pathVal[key0]);\n          if (pathVal && pathVal.then) {\n            promiseWarning(fullExp);\n            if (!(\"$$v\" in pathVal)) {\n              promise = pathVal;\n              promise.$$v = undefined;\n              promise.then(function(val) { promise.$$v = eso0(val); });\n            }\n            pathVal = eso0(pathVal.$$v);\n          }\n\n          if (!key1) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso1(pathVal[key1]);\n          if (pathVal && pathVal.then) {\n            promiseWarning(fullExp);\n            if (!(\"$$v\" in pathVal)) {\n              promise = pathVal;\n              promise.$$v = undefined;\n              promise.then(function(val) { promise.$$v = eso1(val); });\n            }\n            pathVal = eso1(pathVal.$$v);\n          }\n\n          if (!key2) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso2(pathVal[key2]);\n          if (pathVal && pathVal.then) {\n            promiseWarning(fullExp);\n            if (!(\"$$v\" in pathVal)) {\n              promise = pathVal;\n              promise.$$v = undefined;\n              promise.then(function(val) { promise.$$v = eso2(val); });\n            }\n            pathVal = eso2(pathVal.$$v);\n          }\n\n          if (!key3) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso3(pathVal[key3]);\n          if (pathVal && pathVal.then) {\n            promiseWarning(fullExp);\n            if (!(\"$$v\" in pathVal)) {\n              promise = pathVal;\n              promise.$$v = undefined;\n              promise.then(function(val) { promise.$$v = eso3(val); });\n            }\n            pathVal = eso3(pathVal.$$v);\n          }\n\n          if (!key4) return pathVal;\n          if (pathVal == null) return undefined;\n          pathVal = eso4(pathVal[key4]);\n          if (pathVal && pathVal.then) {\n            promiseWarning(fullExp);\n            if (!(\"$$v\" in pathVal)) {\n              promise = pathVal;\n              promise.$$v = undefined;\n              promise.then(function(val) { promise.$$v = eso4(val); });\n            }\n            pathVal = eso4(pathVal.$$v);\n          }\n          return pathVal;\n        };\n}\n\nfunction getterFnWithExtraArgs(fn, fullExpression) {\n  return function(s, l) {\n    return fn(s, l, promiseWarning, ensureSafeObject, fullExpression);\n  };\n}\n\nfunction getterFn(path, options, fullExp) {\n  var expensiveChecks = options.expensiveChecks;\n  var getterFnCache = (expensiveChecks ? getterFnCacheExpensive : getterFnCacheDefault);\n  // Check whether the cache has this getter already.\n  // We can use hasOwnProperty directly on the cache because we ensure,\n  // see below, that the cache never stores a path called 'hasOwnProperty'\n  if (getterFnCache.hasOwnProperty(path)) {\n    return getterFnCache[path];\n  }\n\n  var pathKeys = path.split('.'),\n      pathKeysLength = pathKeys.length,\n      fn;\n\n  // http://jsperf.com/angularjs-parse-getter/6\n  if (options.csp) {\n    if (pathKeysLength < 6) {\n      fn = cspSafeGetterFn(pathKeys[0], pathKeys[1], pathKeys[2], pathKeys[3], pathKeys[4], fullExp,\n                          options);\n    } else {\n      fn = function(scope, locals) {\n        var i = 0, val;\n        do {\n          val = cspSafeGetterFn(pathKeys[i++], pathKeys[i++], pathKeys[i++], pathKeys[i++],\n                                pathKeys[i++], fullExp, options)(scope, locals);\n\n          locals = undefined; // clear after first iteration\n          scope = val;\n        } while (i < pathKeysLength);\n        return val;\n      };\n    }\n  } else {\n    var code = 'var p;\\n';\n    if (expensiveChecks) {\n      code += 's = eso(s, fe);\\nl = eso(l, fe);\\n';\n    }\n    var needsEnsureSafeObject = expensiveChecks;\n    forEach(pathKeys, function(key, index) {\n      ensureSafeMemberName(key, fullExp);\n      var lookupJs = (index\n                      // we simply dereference 's' on any .dot notation\n                      ? 's'\n                      // but if we are first then we check locals first, and if so read it first\n                      : '((l&&l.hasOwnProperty(\"' + key + '\"))?l:s)') + '[\"' + key + '\"]';\n      var wrapWithEso = expensiveChecks || isPossiblyDangerousMemberName(key);\n      if (wrapWithEso) {\n        lookupJs = 'eso(' + lookupJs + ', fe)';\n        needsEnsureSafeObject = true;\n      }\n      code += 'if(s == null) return undefined;\\n' +\n              's=' + lookupJs + ';\\n';\n      if (options.unwrapPromises) {\n        code += 'if (s && s.then) {\\n' +\n                  ' pw(\"' + fullExp.replace(/([\"\\r\\n])/g, '\\\\$1') + '\");\\n' +\n                  ' if (!(\"$$v\" in s)) {\\n' +\n                    ' p=s;\\n' +\n                    ' p.$$v = undefined;\\n' +\n                    ' p.then(function(v) {p.$$v=' + (wrapWithEso ? 'eso(v)' : 'v') + ';});\\n' +\n                    '}\\n' +\n                  ' s=' + (wrapWithEso ? 'eso(s.$$v)' : 's.$$v') + '\\n' +\n                '}\\n';\n\n      }\n    });\n    code += 'return s;';\n\n    /* jshint -W054 */\n    // s=scope, l=locals, pw=promiseWarning, eso=ensureSafeObject, fe=fullExpression\n    var evaledFnGetter = new Function('s', 'l', 'pw', 'eso', 'fe', code);\n    /* jshint +W054 */\n    evaledFnGetter.toString = valueFn(code);\n    if (needsEnsureSafeObject || options.unwrapPromises) {\n      evaledFnGetter = getterFnWithExtraArgs(evaledFnGetter, fullExp);\n    }\n    fn = evaledFnGetter;\n  }\n\n  // Only cache the value if it's not going to mess up the cache object\n  // This is more performant that using Object.prototype.hasOwnProperty.call\n  if (path !== 'hasOwnProperty') {\n    getterFnCache[path] = fn;\n  }\n  return fn;\n}\n\n///////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $parse\n * @kind function\n *\n * @description\n *\n * Converts Angular {@link guide/expression expression} into a function.\n *\n * ```js\n *   var getter = $parse('user.name');\n *   var setter = getter.assign;\n *   var context = {user:{name:'angular'}};\n *   var locals = {user:{name:'local'}};\n *\n *   expect(getter(context)).toEqual('angular');\n *   setter(context, 'newValue');\n *   expect(context.user.name).toEqual('newValue');\n *   expect(getter(context, locals)).toEqual('local');\n * ```\n *\n *\n * @param {string} expression String expression to compile.\n * @returns {function(context, locals)} a function which represents the compiled expression:\n *\n *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n *      are evaluated against (typically a scope object).\n *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n *      `context`.\n *\n *    The returned function also has the following properties:\n *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript\n *        literal.\n *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript\n *        constant literals.\n *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be\n *        set to a function to change its value on the given context.\n *\n */\n\n\n/**\n * @ngdoc provider\n * @name $parseProvider\n * @kind function\n *\n * @description\n * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}\n *  service.\n */\nfunction $ParseProvider() {\n  var cacheDefault = {};\n  var cacheExpensive = {};\n\n  var $parseOptions = {\n    csp: false,\n    unwrapPromises: false,\n    logPromiseWarnings: true,\n    expensiveChecks: false\n  };\n\n\n  /**\n   * @deprecated Promise unwrapping via $parse is deprecated and will be removed in the future.\n   *\n   * @ngdoc method\n   * @name $parseProvider#unwrapPromises\n   * @description\n   *\n   * **This feature is deprecated, see deprecation notes below for more info**\n   *\n   * If set to true (default is false), $parse will unwrap promises automatically when a promise is\n   * found at any part of the expression. In other words, if set to true, the expression will always\n   * result in a non-promise value.\n   *\n   * While the promise is unresolved, it's treated as undefined, but once resolved and fulfilled,\n   * the fulfillment value is used in place of the promise while evaluating the expression.\n   *\n   * **Deprecation notice**\n   *\n   * This is a feature that didn't prove to be wildly useful or popular, primarily because of the\n   * dichotomy between data access in templates (accessed as raw values) and controller code\n   * (accessed as promises).\n   *\n   * In most code we ended up resolving promises manually in controllers anyway and thus unifying\n   * the model access there.\n   *\n   * Other downsides of automatic promise unwrapping:\n   *\n   * - when building components it's often desirable to receive the raw promises\n   * - adds complexity and slows down expression evaluation\n   * - makes expression code pre-generation unattractive due to the amount of code that needs to be\n   *   generated\n   * - makes IDE auto-completion and tool support hard\n   *\n   * **Warning Logs**\n   *\n   * If the unwrapping is enabled, Angular will log a warning about each expression that unwraps a\n   * promise (to reduce the noise, each expression is logged only once). To disable this logging use\n   * `$parseProvider.logPromiseWarnings(false)` api.\n   *\n   *\n   * @param {boolean=} value New value.\n   * @returns {boolean|self} Returns the current setting when used as getter and self if used as\n   *                         setter.\n   */\n  this.unwrapPromises = function(value) {\n    if (isDefined(value)) {\n      $parseOptions.unwrapPromises = !!value;\n      return this;\n    } else {\n      return $parseOptions.unwrapPromises;\n    }\n  };\n\n\n  /**\n   * @deprecated Promise unwrapping via $parse is deprecated and will be removed in the future.\n   *\n   * @ngdoc method\n   * @name $parseProvider#logPromiseWarnings\n   * @description\n   *\n   * Controls whether Angular should log a warning on any encounter of a promise in an expression.\n   *\n   * The default is set to `true`.\n   *\n   * This setting applies only if `$parseProvider.unwrapPromises` setting is set to true as well.\n   *\n   * @param {boolean=} value New value.\n   * @returns {boolean|self} Returns the current setting when used as getter and self if used as\n   *                         setter.\n   */\n this.logPromiseWarnings = function(value) {\n    if (isDefined(value)) {\n      $parseOptions.logPromiseWarnings = value;\n      return this;\n    } else {\n      return $parseOptions.logPromiseWarnings;\n    }\n  };\n\n\n  this.$get = ['$filter', '$sniffer', '$log', function($filter, $sniffer, $log) {\n    $parseOptions.csp = $sniffer.csp;\n    var $parseOptionsExpensive = {\n      csp: $parseOptions.csp,\n      unwrapPromises: $parseOptions.unwrapPromises,\n      logPromiseWarnings: $parseOptions.logPromiseWarnings,\n      expensiveChecks: true\n    };\n\n    promiseWarning = function promiseWarningFn(fullExp) {\n      if (!$parseOptions.logPromiseWarnings || promiseWarningCache.hasOwnProperty(fullExp)) return;\n      promiseWarningCache[fullExp] = true;\n      $log.warn('[$parse] Promise found in the expression `' + fullExp + '`. ' +\n          'Automatic unwrapping of promises in Angular expressions is deprecated.');\n    };\n\n    return function(exp, expensiveChecks) {\n      var parsedExpression;\n\n      switch (typeof exp) {\n        case 'string':\n\n          var cache = (expensiveChecks ? cacheExpensive : cacheDefault);\n          if (cache.hasOwnProperty(exp)) {\n            return cache[exp];\n          }\n\n          var parseOptions = expensiveChecks ? $parseOptionsExpensive : $parseOptions;\n          var lexer = new Lexer(parseOptions);\n          var parser = new Parser(lexer, $filter, parseOptions);\n          parsedExpression = parser.parse(exp);\n\n          if (exp !== 'hasOwnProperty') {\n            // Only cache the value if it's not going to mess up the cache object\n            // This is more performant that using Object.prototype.hasOwnProperty.call\n            cache[exp] = parsedExpression;\n          }\n\n          return parsedExpression;\n\n        case 'function':\n          return exp;\n\n        default:\n          return noop;\n      }\n    };\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $q\n * @requires $rootScope\n *\n * @description\n * A service that helps you run functions asynchronously, and use their return values (or exceptions)\n * when they are done processing.\n *\n * This is an implementation of promises/deferred objects inspired by\n * [Kris Kowal's Q](https://github.com/kriskowal/q).\n *\n * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an\n * interface for interacting with an object that represents the result of an action that is\n * performed asynchronously, and may or may not be finished at any given point in time.\n *\n * From the perspective of dealing with error handling, deferred and promise APIs are to\n * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q`, `scope` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     var deferred = $q.defer();\n *\n *     setTimeout(function() {\n *       deferred.notify('About to greet ' + name + '.');\n *\n *       if (okToGreet(name)) {\n *         deferred.resolve('Hello, ' + name + '!');\n *       } else {\n *         deferred.reject('Greeting ' + name + ' is not allowed.');\n *       }\n *     }, 1000);\n *\n *     return deferred.promise;\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   }, function(update) {\n *     alert('Got notification: ' + update);\n *   });\n * ```\n *\n * At first it might not be obvious why this extra complexity is worth the trouble. The payoff\n * comes in the way of guarantees that promise and deferred APIs make, see\n * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.\n *\n * Additionally the promise api allows for composition that is very hard to do with the\n * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.\n * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the\n * section on serial or parallel joining of promises.\n *\n *\n * # The Deferred API\n *\n * A new instance of deferred is constructed by calling `$q.defer()`.\n *\n * The purpose of the deferred object is to expose the associated Promise instance as well as APIs\n * that can be used for signaling the successful or unsuccessful completion, as well as the status\n * of the task.\n *\n * **Methods**\n *\n * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection\n *   constructed via `$q.reject`, the promise will be rejected instead.\n * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to\n *   resolving it with a rejection constructed via `$q.reject`.\n * - `notify(value)` - provides updates on the status of the promise's execution. This may be called\n *   multiple times before the promise is either resolved or rejected.\n *\n * **Properties**\n *\n * - promise – `{Promise}` – promise object associated with this deferred.\n *\n *\n * # The Promise API\n *\n * A new promise instance is created when a deferred instance is created and can be retrieved by\n * calling `deferred.promise`.\n *\n * The purpose of the promise object is to allow for interested parties to get access to the result\n * of the deferred task when it completes.\n *\n * **Methods**\n *\n * - `then(successCallback, errorCallback, notifyCallback)` – regardless of when the promise was or\n *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously\n *   as soon as the result is available. The callbacks are called with a single argument: the result\n *   or rejection reason. Additionally, the notify callback may be called zero or more times to\n *   provide a progress indication, before the promise is resolved or rejected.\n *\n *   This method *returns a new promise* which is resolved or rejected via the return value of the\n *   `successCallback`, `errorCallback`. It also notifies via the return value of the\n *   `notifyCallback` method. The promise can not be resolved or rejected from the notifyCallback\n *   method.\n *\n * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`\n *\n *   Because `catch` is a reserved word in JavaScript and reserved keywords are not supported as\n *   property names by ES3, you'll need to invoke the method like `promise['catch'](callback)` or\n *  `promise.then(null, errorCallback)` to make your code IE8 and Android 2.x compatible.\n *\n * - `finally(callback)` – allows you to observe either the fulfillment or rejection of a promise,\n *   but to do so without modifying the final value. This is useful to release resources or do some\n *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full\n *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for\n *   more information.\n *\n *   Because `finally` is a reserved word in JavaScript and reserved keywords are not supported as\n *   property names by ES3, you'll need to invoke the method like `promise['finally'](callback)` to\n *   make your code IE8 and Android 2.x compatible.\n *\n * # Chaining promises\n *\n * Because calling the `then` method of a promise returns a new derived promise, it is easily\n * possible to create a chain of promises:\n *\n * ```js\n *   promiseB = promiseA.then(function(result) {\n *     return result + 1;\n *   });\n *\n *   // promiseB will be resolved immediately after promiseA is resolved and its value\n *   // will be the result of promiseA incremented by 1\n * ```\n *\n * It is possible to create chains of any length and since a promise can be resolved with another\n * promise (which will defer its resolution further), it is possible to pause/defer resolution of\n * the promises at any point in the chain. This makes it possible to implement powerful APIs like\n * $http's response interceptors.\n *\n *\n * # Differences between Kris Kowal's Q and $q\n *\n *  There are two main differences:\n *\n * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation\n *   mechanism in angular, which means faster propagation of resolution or rejection into your\n *   models and avoiding unnecessary browser repaints, which would result in flickering UI.\n * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains\n *   all the important functionality needed for common async tasks.\n *\n *  # Testing\n *\n *  ```js\n *    it('should simulate promise', inject(function($q, $rootScope) {\n *      var deferred = $q.defer();\n *      var promise = deferred.promise;\n *      var resolvedValue;\n *\n *      promise.then(function(value) { resolvedValue = value; });\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Simulate resolving of promise\n *      deferred.resolve(123);\n *      // Note that the 'then' function does not get called synchronously.\n *      // This is because we want the promise API to always be async, whether or not\n *      // it got called synchronously or asynchronously.\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Propagate promise resolution to 'then' functions using $apply().\n *      $rootScope.$apply();\n *      expect(resolvedValue).toEqual(123);\n *    }));\n *  ```\n */\nfunction $QProvider() {\n\n  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $rootScope.$evalAsync(callback);\n    }, $exceptionHandler);\n  }];\n}\n\n\n/**\n * Constructs a promise manager.\n *\n * @param {function(Function)} nextTick Function for executing functions in the next turn.\n * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for\n *     debugging purposes.\n * @returns {object} Promise manager.\n */\nfunction qFactory(nextTick, exceptionHandler) {\n\n  /**\n   * @ngdoc method\n   * @name $q#defer\n   * @kind function\n   *\n   * @description\n   * Creates a `Deferred` object which represents a task which will finish in the future.\n   *\n   * @returns {Deferred} Returns a new instance of deferred.\n   */\n  var defer = function() {\n    var pending = [],\n        value, deferred;\n\n    deferred = {\n\n      resolve: function(val) {\n        if (pending) {\n          var callbacks = pending;\n          pending = undefined;\n          value = ref(val);\n\n          if (callbacks.length) {\n            nextTick(function() {\n              var callback;\n              for (var i = 0, ii = callbacks.length; i < ii; i++) {\n                callback = callbacks[i];\n                value.then(callback[0], callback[1], callback[2]);\n              }\n            });\n          }\n        }\n      },\n\n\n      reject: function(reason) {\n        deferred.resolve(createInternalRejectedPromise(reason));\n      },\n\n\n      notify: function(progress) {\n        if (pending) {\n          var callbacks = pending;\n\n          if (pending.length) {\n            nextTick(function() {\n              var callback;\n              for (var i = 0, ii = callbacks.length; i < ii; i++) {\n                callback = callbacks[i];\n                callback[2](progress);\n              }\n            });\n          }\n        }\n      },\n\n\n      promise: {\n        then: function(callback, errback, progressback) {\n          var result = defer();\n\n          var wrappedCallback = function(value) {\n            try {\n              result.resolve((isFunction(callback) ? callback : defaultCallback)(value));\n            } catch(e) {\n              result.reject(e);\n              exceptionHandler(e);\n            }\n          };\n\n          var wrappedErrback = function(reason) {\n            try {\n              result.resolve((isFunction(errback) ? errback : defaultErrback)(reason));\n            } catch(e) {\n              result.reject(e);\n              exceptionHandler(e);\n            }\n          };\n\n          var wrappedProgressback = function(progress) {\n            try {\n              result.notify((isFunction(progressback) ? progressback : defaultCallback)(progress));\n            } catch(e) {\n              exceptionHandler(e);\n            }\n          };\n\n          if (pending) {\n            pending.push([wrappedCallback, wrappedErrback, wrappedProgressback]);\n          } else {\n            value.then(wrappedCallback, wrappedErrback, wrappedProgressback);\n          }\n\n          return result.promise;\n        },\n\n        \"catch\": function(callback) {\n          return this.then(null, callback);\n        },\n\n        \"finally\": function(callback) {\n\n          function makePromise(value, resolved) {\n            var result = defer();\n            if (resolved) {\n              result.resolve(value);\n            } else {\n              result.reject(value);\n            }\n            return result.promise;\n          }\n\n          function handleCallback(value, isResolved) {\n            var callbackOutput = null;\n            try {\n              callbackOutput = (callback ||defaultCallback)();\n            } catch(e) {\n              return makePromise(e, false);\n            }\n            if (isPromiseLike(callbackOutput)) {\n              return callbackOutput.then(function() {\n                return makePromise(value, isResolved);\n              }, function(error) {\n                return makePromise(error, false);\n              });\n            } else {\n              return makePromise(value, isResolved);\n            }\n          }\n\n          return this.then(function(value) {\n            return handleCallback(value, true);\n          }, function(error) {\n            return handleCallback(error, false);\n          });\n        }\n      }\n    };\n\n    return deferred;\n  };\n\n\n  var ref = function(value) {\n    if (isPromiseLike(value)) return value;\n    return {\n      then: function(callback) {\n        var result = defer();\n        nextTick(function() {\n          result.resolve(callback(value));\n        });\n        return result.promise;\n      }\n    };\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $q#reject\n   * @kind function\n   *\n   * @description\n   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be\n   * used to forward rejection in a chain of promises. If you are dealing with the last promise in\n   * a promise chain, you don't need to worry about it.\n   *\n   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of\n   * `reject` as the `throw` keyword in JavaScript. This also means that if you \"catch\" an error via\n   * a promise error callback and you want to forward the error to the promise derived from the\n   * current promise, you have to \"rethrow\" the error by returning a rejection constructed via\n   * `reject`.\n   *\n   * ```js\n   *   promiseB = promiseA.then(function(result) {\n   *     // success: do something and resolve promiseB\n   *     //          with the old or a new result\n   *     return result;\n   *   }, function(reason) {\n   *     // error: handle the error if possible and\n   *     //        resolve promiseB with newPromiseOrValue,\n   *     //        otherwise forward the rejection to promiseB\n   *     if (canHandle(reason)) {\n   *      // handle the error and recover\n   *      return newPromiseOrValue;\n   *     }\n   *     return $q.reject(reason);\n   *   });\n   * ```\n   *\n   * @param {*} reason Constant, message, exception or an object representing the rejection reason.\n   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.\n   */\n  var reject = function(reason) {\n    var result = defer();\n    result.reject(reason);\n    return result.promise;\n  };\n\n  var createInternalRejectedPromise = function(reason) {\n    return {\n      then: function(callback, errback) {\n        var result = defer();\n        nextTick(function() {\n          try {\n            result.resolve((isFunction(errback) ? errback : defaultErrback)(reason));\n          } catch(e) {\n            result.reject(e);\n            exceptionHandler(e);\n          }\n        });\n        return result.promise;\n      }\n    };\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $q#when\n   * @kind function\n   *\n   * @description\n   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.\n   * This is useful when you are dealing with an object that might or might not be a promise, or if\n   * the promise comes from a source that can't be trusted.\n   *\n   * @param {*} value Value or a promise\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n  var when = function(value, callback, errback, progressback) {\n    var result = defer(),\n        done;\n\n    var wrappedCallback = function(value) {\n      try {\n        return (isFunction(callback) ? callback : defaultCallback)(value);\n      } catch (e) {\n        exceptionHandler(e);\n        return reject(e);\n      }\n    };\n\n    var wrappedErrback = function(reason) {\n      try {\n        return (isFunction(errback) ? errback : defaultErrback)(reason);\n      } catch (e) {\n        exceptionHandler(e);\n        return reject(e);\n      }\n    };\n\n    var wrappedProgressback = function(progress) {\n      try {\n        return (isFunction(progressback) ? progressback : defaultCallback)(progress);\n      } catch (e) {\n        exceptionHandler(e);\n      }\n    };\n\n    nextTick(function() {\n      ref(value).then(function(value) {\n        if (done) return;\n        done = true;\n        result.resolve(ref(value).then(wrappedCallback, wrappedErrback, wrappedProgressback));\n      }, function(reason) {\n        if (done) return;\n        done = true;\n        result.resolve(wrappedErrback(reason));\n      }, function(progress) {\n        if (done) return;\n        result.notify(wrappedProgressback(progress));\n      });\n    });\n\n    return result.promise;\n  };\n\n\n  function defaultCallback(value) {\n    return value;\n  }\n\n\n  function defaultErrback(reason) {\n    return reject(reason);\n  }\n\n\n  /**\n   * @ngdoc method\n   * @name $q#all\n   * @kind function\n   *\n   * @description\n   * Combines multiple promises into a single promise that is resolved when all of the input\n   * promises are resolved.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,\n   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.\n   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected\n   *   with the same rejection value.\n   */\n  function all(promises) {\n    var deferred = defer(),\n        counter = 0,\n        results = isArray(promises) ? [] : {};\n\n    forEach(promises, function(promise, key) {\n      counter++;\n      ref(promise).then(function(value) {\n        if (results.hasOwnProperty(key)) return;\n        results[key] = value;\n        if (!(--counter)) deferred.resolve(results);\n      }, function(reason) {\n        if (results.hasOwnProperty(key)) return;\n        deferred.reject(reason);\n      });\n    });\n\n    if (counter === 0) {\n      deferred.resolve(results);\n    }\n\n    return deferred.promise;\n  }\n\n  return {\n    defer: defer,\n    reject: reject,\n    when: when,\n    all: all\n  };\n}\n\nfunction $$RAFProvider(){ //rAF\n  this.$get = ['$window', '$timeout', function($window, $timeout) {\n    var requestAnimationFrame = $window.requestAnimationFrame ||\n                                $window.webkitRequestAnimationFrame ||\n                                $window.mozRequestAnimationFrame;\n\n    var cancelAnimationFrame = $window.cancelAnimationFrame ||\n                               $window.webkitCancelAnimationFrame ||\n                               $window.mozCancelAnimationFrame ||\n                               $window.webkitCancelRequestAnimationFrame;\n\n    var rafSupported = !!requestAnimationFrame;\n    var raf = rafSupported\n      ? function(fn) {\n          var id = requestAnimationFrame(fn);\n          return function() {\n            cancelAnimationFrame(id);\n          };\n        }\n      : function(fn) {\n          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666\n          return function() {\n            $timeout.cancel(timer);\n          };\n        };\n\n    raf.supported = rafSupported;\n\n    return raf;\n  }];\n}\n\n/**\n * DESIGN NOTES\n *\n * The design decisions behind the scope are heavily favored for speed and memory consumption.\n *\n * The typical use of scope is to watch the expressions, which most of the time return the same\n * value as last time so we optimize the operation.\n *\n * Closures construction is expensive in terms of speed as well as memory:\n *   - No closures, instead use prototypical inheritance for API\n *   - Internal state needs to be stored on scope directly, which means that private state is\n *     exposed as $$____ properties\n *\n * Loop operations are optimized by using while(count--) { ... }\n *   - this means that in order to keep the same order of execution as addition we have to add\n *     items to the array at the beginning (unshift) instead of at the end (push)\n *\n * Child scopes are created and removed often\n *   - Using an array would be slow since inserts in middle are expensive so we use linked list\n *\n * There are few watches then a lot of observers. This is why you don't want the observer to be\n * implemented in the same way as watch. Watch requires return of initialization function which\n * are expensive to construct.\n */\n\n\n/**\n * @ngdoc provider\n * @name $rootScopeProvider\n * @description\n *\n * Provider for the $rootScope service.\n */\n\n/**\n * @ngdoc method\n * @name $rootScopeProvider#digestTtl\n * @description\n *\n * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and\n * assuming that the model is unstable.\n *\n * The current default is 10 iterations.\n *\n * In complex applications it's possible that the dependencies between `$watch`s will result in\n * several digest iterations. However if an application needs more than the default 10 digest\n * iterations for its model to stabilize then you should investigate what is causing the model to\n * continuously change during the digest.\n *\n * Increasing the TTL could have performance implications, so you should not change it without\n * proper justification.\n *\n * @param {number} limit The number of digest iterations.\n */\n\n\n/**\n * @ngdoc service\n * @name $rootScope\n * @description\n *\n * Every application has a single root {@link ng.$rootScope.Scope scope}.\n * All other scopes are descendant scopes of the root scope. Scopes provide separation\n * between the model and the view, via a mechanism for watching the model for changes.\n * They also provide an event emission/broadcast and subscription facility. See the\n * {@link guide/scope developer guide on scopes}.\n */\nfunction $RootScopeProvider(){\n  var TTL = 10;\n  var $rootScopeMinErr = minErr('$rootScope');\n  var lastDirtyWatch = null;\n\n  this.digestTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n    }\n    return TTL;\n  };\n\n  this.$get = ['$injector', '$exceptionHandler', '$parse', '$browser',\n      function( $injector,   $exceptionHandler,   $parse,   $browser) {\n\n    /**\n     * @ngdoc type\n     * @name $rootScope.Scope\n     *\n     * @description\n     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the\n     * {@link auto.$injector $injector}. Child scopes are created using the\n     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when\n     * compiled HTML template is executed.)\n     *\n     * Here is a simple scope snippet to show how you can interact with the scope.\n     * ```html\n     * <file src=\"./test/ng/rootScopeSpec.js\" tag=\"docs1\" />\n     * ```\n     *\n     * # Inheritance\n     * A scope can inherit from a parent scope, as in this example:\n     * ```js\n         var parent = $rootScope;\n         var child = parent.$new();\n\n         parent.salutation = \"Hello\";\n         child.name = \"World\";\n         expect(child.salutation).toEqual('Hello');\n\n         child.salutation = \"Welcome\";\n         expect(child.salutation).toEqual('Welcome');\n         expect(parent.salutation).toEqual('Hello');\n     * ```\n     *\n     *\n     * @param {Object.<string, function()>=} providers Map of service factory which need to be\n     *                                       provided for the current scope. Defaults to {@link ng}.\n     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should\n     *                              append/override services provided by `providers`. This is handy\n     *                              when unit-testing and having the need to override a default\n     *                              service.\n     * @returns {Object} Newly created scope.\n     *\n     */\n    function Scope() {\n      this.$id = nextUid();\n      this.$$phase = this.$parent = this.$$watchers =\n                     this.$$nextSibling = this.$$prevSibling =\n                     this.$$childHead = this.$$childTail = null;\n      this['this'] = this.$root =  this;\n      this.$$destroyed = false;\n      this.$$asyncQueue = [];\n      this.$$postDigestQueue = [];\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$isolateBindings = {};\n    }\n\n    /**\n     * @ngdoc property\n     * @name $rootScope.Scope#$id\n     *\n     * @description\n     * Unique scope ID (monotonically increasing) useful for debugging.\n     */\n\n     /**\n      * @ngdoc property\n      * @name $rootScope.Scope#$parent\n      *\n      * @description\n      * Reference to the parent scope.\n      */\n\n      /**\n       * @ngdoc property\n       * @name $rootScope.Scope#$root\n       *\n       * @description\n       * Reference to the root scope.\n       */\n\n    Scope.prototype = {\n      constructor: Scope,\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$new\n       * @kind function\n       *\n       * @description\n       * Creates a new child {@link ng.$rootScope.Scope scope}.\n       *\n       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.\n       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.\n       *\n       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is\n       * desired for the scope and its child scopes to be permanently detached from the parent and\n       * thus stop participating in model change detection and listener notification by invoking.\n       *\n       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the\n       *         parent scope. The scope is isolated, as it can not see parent scope properties.\n       *         When creating widgets, it is useful for the widget to not accidentally read parent\n       *         state.\n       *\n       * @returns {Object} The newly created child scope.\n       *\n       */\n      $new: function(isolate) {\n        var ChildScope,\n            child;\n\n        if (isolate) {\n          child = new Scope();\n          child.$root = this.$root;\n          // ensure that there is just one async queue per $rootScope and its children\n          child.$$asyncQueue = this.$$asyncQueue;\n          child.$$postDigestQueue = this.$$postDigestQueue;\n        } else {\n          // Only create a child scope class if somebody asks for one,\n          // but cache it to allow the VM to optimize lookups.\n          if (!this.$$childScopeClass) {\n            this.$$childScopeClass = function() {\n              this.$$watchers = this.$$nextSibling =\n                  this.$$childHead = this.$$childTail = null;\n              this.$$listeners = {};\n              this.$$listenerCount = {};\n              this.$id = nextUid();\n              this.$$childScopeClass = null;\n            };\n            this.$$childScopeClass.prototype = this;\n          }\n          child = new this.$$childScopeClass();\n        }\n        child['this'] = child;\n        child.$parent = this;\n        child.$$prevSibling = this.$$childTail;\n        if (this.$$childHead) {\n          this.$$childTail.$$nextSibling = child;\n          this.$$childTail = child;\n        } else {\n          this.$$childHead = this.$$childTail = child;\n        }\n        return child;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watch\n       * @kind function\n       *\n       * @description\n       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.\n       *\n       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest\n       *   $digest()} and should return the value that will be watched. (Since\n       *   {@link ng.$rootScope.Scope#$digest $digest()} reruns when it detects changes the\n       *   `watchExpression` can execute multiple times per\n       *   {@link ng.$rootScope.Scope#$digest $digest()} and should be idempotent.)\n       * - The `listener` is called only when the value from the current `watchExpression` and the\n       *   previous call to `watchExpression` are not equal (with the exception of the initial run,\n       *   see below). Inequality is determined according to reference inequality,\n       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)\n       *    via the `!==` Javascript operator, unless `objectEquality == true`\n       *   (see next point)\n       * - When `objectEquality == true`, inequality of the `watchExpression` is determined\n       *   according to the {@link angular.equals} function. To save the value of the object for\n       *   later comparison, the {@link angular.copy} function is used. This therefore means that\n       *   watching complex objects will have adverse memory and performance implications.\n       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.\n       *   This is achieved by rerunning the watchers until no changes are detected. The rerun\n       *   iteration limit is 10 to prevent an infinite loop deadlock.\n       *\n       *\n       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,\n       * you can register a `watchExpression` function with no `listener`. (Since `watchExpression`\n       * can execute multiple times per {@link ng.$rootScope.Scope#$digest $digest} cycle when a\n       * change is detected, be prepared for multiple calls to your listener.)\n       *\n       * After a watcher is registered with the scope, the `listener` fn is called asynchronously\n       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the\n       * watcher. In rare cases, this is undesirable because the listener is called when the result\n       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you\n       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the\n       * listener was called due to initialization.\n       *\n       * The example below contains an illustration of using a function as your $watch listener\n       *\n       *\n       * # Example\n       * ```js\n           // let's assume that scope was dependency injected as the $rootScope\n           var scope = $rootScope;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n\n\n\n           // Using a listener function\n           var food;\n           scope.foodCounter = 0;\n           expect(scope.foodCounter).toEqual(0);\n           scope.$watch(\n             // This is the listener function\n             function() { return food; },\n             // This is the change handler\n             function(newValue, oldValue) {\n               if ( newValue !== oldValue ) {\n                 // Only increment the counter if the value changed\n                 scope.foodCounter = scope.foodCounter + 1;\n               }\n             }\n           );\n           // No digest has been run so the counter will be zero\n           expect(scope.foodCounter).toEqual(0);\n\n           // Run the digest but since food has not changed count will still be zero\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(0);\n\n           // Update food and run digest.  Now the counter will increment\n           food = 'cheeseburger';\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(1);\n\n       * ```\n       *\n       *\n       *\n       * @param {(function()|string)} watchExpression Expression that is evaluated on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers\n       *    a call to the `listener`.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(scope)`: called with current `scope` as a parameter.\n       * @param {(function()|string)=} listener Callback called whenever the return value of\n       *   the `watchExpression` changes.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(newValue, oldValue, scope)`: called with current and previous values as\n       *      parameters.\n       *\n       * @param {boolean=} objectEquality Compare for object equality using {@link angular.equals} instead of\n       *     comparing for reference equality.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $watch: function(watchExp, listener, objectEquality) {\n        var scope = this,\n            get = compileToFn(watchExp, 'watch'),\n            array = scope.$$watchers,\n            watcher = {\n              fn: listener,\n              last: initWatchVal,\n              get: get,\n              exp: watchExp,\n              eq: !!objectEquality\n            };\n\n        lastDirtyWatch = null;\n\n        // in the case user pass string, we need to compile it, do we really need this ?\n        if (!isFunction(listener)) {\n          var listenFn = compileToFn(listener || noop, 'listener');\n          watcher.fn = function(newVal, oldVal, scope) {listenFn(scope);};\n        }\n\n        if (typeof watchExp == 'string' && get.constant) {\n          var originalFn = watcher.fn;\n          watcher.fn = function(newVal, oldVal, scope) {\n            originalFn.call(this, newVal, oldVal, scope);\n            arrayRemove(array, watcher);\n          };\n        }\n\n        if (!array) {\n          array = scope.$$watchers = [];\n        }\n        // we use unshift since we use a while loop in $digest for speed.\n        // the while loop reads in reverse order.\n        array.unshift(watcher);\n\n        return function deregisterWatch() {\n          arrayRemove(array, watcher);\n          lastDirtyWatch = null;\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchCollection\n       * @kind function\n       *\n       * @description\n       * Shallow watches the properties of an object and fires whenever any of the properties change\n       * (for arrays, this implies watching the array items; for object maps, this implies watching\n       * the properties). If a change is detected, the `listener` callback is fired.\n       *\n       * - The `obj` collection is observed via standard $watch operation and is examined on every\n       *   call to $digest() to see if any items have been added, removed, or moved.\n       * - The `listener` is called whenever anything within the `obj` has changed. Examples include\n       *   adding, removing, and moving items belonging to an object or array.\n       *\n       *\n       * # Example\n       * ```js\n          $scope.names = ['igor', 'matias', 'misko', 'james'];\n          $scope.dataCount = 4;\n\n          $scope.$watchCollection('names', function(newNames, oldNames) {\n            $scope.dataCount = newNames.length;\n          });\n\n          expect($scope.dataCount).toEqual(4);\n          $scope.$digest();\n\n          //still at 4 ... no changes\n          expect($scope.dataCount).toEqual(4);\n\n          $scope.names.pop();\n          $scope.$digest();\n\n          //now there's been a change\n          expect($scope.dataCount).toEqual(3);\n       * ```\n       *\n       *\n       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The\n       *    expression value should evaluate to an object or an array which is observed on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the\n       *    collection will trigger a call to the `listener`.\n       *\n       * @param {function(newCollection, oldCollection, scope)} listener a callback function called\n       *    when a change is detected.\n       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression\n       *    - The `oldCollection` object is a copy of the former collection data.\n       *      Due to performance considerations, the`oldCollection` value is computed only if the\n       *      `listener` function declares two or more arguments.\n       *    - The `scope` argument refers to the current scope.\n       *\n       * @returns {function()} Returns a de-registration function for this listener. When the\n       *    de-registration function is executed, the internal watch operation is terminated.\n       */\n      $watchCollection: function(obj, listener) {\n        var self = this;\n        // the current value, updated on each dirty-check run\n        var newValue;\n        // a shallow copy of the newValue from the last dirty-check run,\n        // updated to match newValue during dirty-check run\n        var oldValue;\n        // a shallow copy of the newValue from when the last change happened\n        var veryOldValue;\n        // only track veryOldValue if the listener is asking for it\n        var trackVeryOldValue = (listener.length > 1);\n        var changeDetected = 0;\n        var objGetter = $parse(obj);\n        var internalArray = [];\n        var internalObject = {};\n        var initRun = true;\n        var oldLength = 0;\n\n        function $watchCollectionWatch() {\n          newValue = objGetter(self);\n          var newLength, key, bothNaN;\n\n          if (!isObject(newValue)) { // if primitive\n            if (oldValue !== newValue) {\n              oldValue = newValue;\n              changeDetected++;\n            }\n          } else if (isArrayLike(newValue)) {\n            if (oldValue !== internalArray) {\n              // we are transitioning from something which was not an array into array.\n              oldValue = internalArray;\n              oldLength = oldValue.length = 0;\n              changeDetected++;\n            }\n\n            newLength = newValue.length;\n\n            if (oldLength !== newLength) {\n              // if lengths do not match we need to trigger change notification\n              changeDetected++;\n              oldValue.length = oldLength = newLength;\n            }\n            // copy the items to oldValue and look for changes.\n            for (var i = 0; i < newLength; i++) {\n              bothNaN = (oldValue[i] !== oldValue[i]) &&\n                  (newValue[i] !== newValue[i]);\n              if (!bothNaN && (oldValue[i] !== newValue[i])) {\n                changeDetected++;\n                oldValue[i] = newValue[i];\n              }\n            }\n          } else {\n            if (oldValue !== internalObject) {\n              // we are transitioning from something which was not an object into object.\n              oldValue = internalObject = {};\n              oldLength = 0;\n              changeDetected++;\n            }\n            // copy the items to oldValue and look for changes.\n            newLength = 0;\n            for (key in newValue) {\n              if (newValue.hasOwnProperty(key)) {\n                newLength++;\n                if (oldValue.hasOwnProperty(key)) {\n                  bothNaN = (oldValue[key] !== oldValue[key]) &&\n                      (newValue[key] !== newValue[key]);\n                  if (!bothNaN && (oldValue[key] !== newValue[key])) {\n                    changeDetected++;\n                    oldValue[key] = newValue[key];\n                  }\n                } else {\n                  oldLength++;\n                  oldValue[key] = newValue[key];\n                  changeDetected++;\n                }\n              }\n            }\n            if (oldLength > newLength) {\n              // we used to have more keys, need to find them and destroy them.\n              changeDetected++;\n              for(key in oldValue) {\n                if (oldValue.hasOwnProperty(key) && !newValue.hasOwnProperty(key)) {\n                  oldLength--;\n                  delete oldValue[key];\n                }\n              }\n            }\n          }\n          return changeDetected;\n        }\n\n        function $watchCollectionAction() {\n          if (initRun) {\n            initRun = false;\n            listener(newValue, newValue, self);\n          } else {\n            listener(newValue, veryOldValue, self);\n          }\n\n          // make a copy for the next time a collection is changed\n          if (trackVeryOldValue) {\n            if (!isObject(newValue)) {\n              //primitive\n              veryOldValue = newValue;\n            } else if (isArrayLike(newValue)) {\n              veryOldValue = new Array(newValue.length);\n              for (var i = 0; i < newValue.length; i++) {\n                veryOldValue[i] = newValue[i];\n              }\n            } else { // if object\n              veryOldValue = {};\n              for (var key in newValue) {\n                if (hasOwnProperty.call(newValue, key)) {\n                  veryOldValue[key] = newValue[key];\n                }\n              }\n            }\n          }\n        }\n\n        return this.$watch($watchCollectionWatch, $watchCollectionAction);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$digest\n       * @kind function\n       *\n       * @description\n       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and\n       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change\n       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}\n       * until no more listeners are firing. This means that it is possible to get into an infinite\n       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of\n       * iterations exceeds 10.\n       *\n       * Usually, you don't call `$digest()` directly in\n       * {@link ng.directive:ngController controllers} or in\n       * {@link ng.$compileProvider#directive directives}.\n       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within\n       * a {@link ng.$compileProvider#directive directives}), which will force a `$digest()`.\n       *\n       * If you want to be notified whenever `$digest()` is called,\n       * you can register a `watchExpression` function with\n       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.\n       *\n       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.\n       *\n       * # Example\n       * ```js\n           var scope = ...;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n       * ```\n       *\n       */\n      $digest: function() {\n        var watch, value, last,\n            watchers,\n            asyncQueue = this.$$asyncQueue,\n            postDigestQueue = this.$$postDigestQueue,\n            length,\n            dirty, ttl = TTL,\n            next, current, target = this,\n            watchLog = [],\n            logIdx, logMsg, asyncTask;\n\n        beginPhase('$digest');\n        // Check for changes to browser url that happened in sync before the call to $digest\n        $browser.$$checkUrlChange();\n\n        lastDirtyWatch = null;\n\n        do { // \"while dirty\" loop\n          dirty = false;\n          current = target;\n\n          while(asyncQueue.length) {\n            try {\n              asyncTask = asyncQueue.shift();\n              asyncTask.scope.$eval(asyncTask.expression);\n            } catch (e) {\n              clearPhase();\n              $exceptionHandler(e);\n            }\n            lastDirtyWatch = null;\n          }\n\n          traverseScopesLoop:\n          do { // \"traverse the scopes\" loop\n            if ((watchers = current.$$watchers)) {\n              // process our watches\n              length = watchers.length;\n              while (length--) {\n                try {\n                  watch = watchers[length];\n                  // Most common watches are on primitives, in which case we can short\n                  // circuit it with === operator, only when === fails do we use .equals\n                  if (watch) {\n                    if ((value = watch.get(current)) !== (last = watch.last) &&\n                        !(watch.eq\n                            ? equals(value, last)\n                            : (typeof value === 'number' && typeof last === 'number'\n                               && isNaN(value) && isNaN(last)))) {\n                      dirty = true;\n                      lastDirtyWatch = watch;\n                      watch.last = watch.eq ? copy(value, null) : value;\n                      watch.fn(value, ((last === initWatchVal) ? value : last), current);\n                      if (ttl < 5) {\n                        logIdx = 4 - ttl;\n                        if (!watchLog[logIdx]) watchLog[logIdx] = [];\n                        logMsg = (isFunction(watch.exp))\n                            ? 'fn: ' + (watch.exp.name || watch.exp.toString())\n                            : watch.exp;\n                        logMsg += '; newVal: ' + toJson(value) + '; oldVal: ' + toJson(last);\n                        watchLog[logIdx].push(logMsg);\n                      }\n                    } else if (watch === lastDirtyWatch) {\n                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers\n                      // have already been tested.\n                      dirty = false;\n                      break traverseScopesLoop;\n                    }\n                  }\n                } catch (e) {\n                  clearPhase();\n                  $exceptionHandler(e);\n                }\n              }\n            }\n\n            // Insanity Warning: scope depth-first traversal\n            // yes, this code is a bit crazy, but it works and we have tests to prove it!\n            // this piece should be kept in sync with the traversal in $broadcast\n            if (!(next = (current.$$childHead ||\n                (current !== target && current.$$nextSibling)))) {\n              while(current !== target && !(next = current.$$nextSibling)) {\n                current = current.$parent;\n              }\n            }\n          } while ((current = next));\n\n          // `break traverseScopesLoop;` takes us to here\n\n          if((dirty || asyncQueue.length) && !(ttl--)) {\n            clearPhase();\n            throw $rootScopeMinErr('infdig',\n                '{0} $digest() iterations reached. Aborting!\\n' +\n                'Watchers fired in the last 5 iterations: {1}',\n                TTL, toJson(watchLog));\n          }\n\n        } while (dirty || asyncQueue.length);\n\n        clearPhase();\n\n        while(postDigestQueue.length) {\n          try {\n            postDigestQueue.shift()();\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        }\n      },\n\n\n      /**\n       * @ngdoc event\n       * @name $rootScope.Scope#$destroy\n       * @eventType broadcast on scope being destroyed\n       *\n       * @description\n       * Broadcasted when a scope and its children are being destroyed.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$destroy\n       * @kind function\n       *\n       * @description\n       * Removes the current scope (and all of its children) from the parent scope. Removal implies\n       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer\n       * propagate to the current scope and its children. Removal also implies that the current\n       * scope is eligible for garbage collection.\n       *\n       * The `$destroy()` is usually used by directives such as\n       * {@link ng.directive:ngRepeat ngRepeat} for managing the\n       * unrolling of the loop.\n       *\n       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.\n       * Application code can register a `$destroy` event handler that will give it a chance to\n       * perform any necessary cleanup.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n      $destroy: function() {\n        // we can't destroy the root scope or a scope that has been already destroyed\n        if (this.$$destroyed) return;\n        var parent = this.$parent;\n\n        this.$broadcast('$destroy');\n        this.$$destroyed = true;\n        if (this === $rootScope) return;\n\n        forEach(this.$$listenerCount, bind(null, decrementListenerCount, this));\n\n        // sever all the references to parent scopes (after this cleanup, the current scope should\n        // not be retained by any of our references and should be eligible for garbage collection)\n        if (parent.$$childHead == this) parent.$$childHead = this.$$nextSibling;\n        if (parent.$$childTail == this) parent.$$childTail = this.$$prevSibling;\n        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;\n        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;\n\n\n        // All of the code below is bogus code that works around V8's memory leak via optimized code\n        // and inline caches.\n        //\n        // see:\n        // - https://code.google.com/p/v8/issues/detail?id=2073#c26\n        // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909\n        // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451\n\n        this.$parent = this.$$nextSibling = this.$$prevSibling = this.$$childHead =\n            this.$$childTail = this.$root = null;\n\n        // don't reset these to null in case some async task tries to register a listener/watch/task\n        this.$$listeners = {};\n        this.$$watchers = this.$$asyncQueue = this.$$postDigestQueue = [];\n\n        // prevent NPEs since these methods have references to properties we nulled out\n        this.$destroy = this.$digest = this.$apply = noop;\n        this.$on = this.$watch = function() { return noop; };\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$eval\n       * @kind function\n       *\n       * @description\n       * Executes the `expression` on the current scope and returns the result. Any exceptions in\n       * the expression are propagated (uncaught). This is useful when evaluating Angular\n       * expressions.\n       *\n       * # Example\n       * ```js\n           var scope = ng.$rootScope.Scope();\n           scope.a = 1;\n           scope.b = 2;\n\n           expect(scope.$eval('a+b')).toEqual(3);\n           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);\n       * ```\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       * @returns {*} The result of evaluating the expression.\n       */\n      $eval: function(expr, locals) {\n        return $parse(expr)(this, locals);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$evalAsync\n       * @kind function\n       *\n       * @description\n       * Executes the expression on the current scope at a later point in time.\n       *\n       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only\n       * that:\n       *\n       *   - it will execute after the function that scheduled the evaluation (preferably before DOM\n       *     rendering).\n       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after\n       *     `expression` execution.\n       *\n       * Any exceptions from the execution of the expression are forwarded to the\n       * {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle\n       * will be scheduled. However, it is encouraged to always call code that changes the model\n       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       */\n      $evalAsync: function(expr) {\n        // if we are outside of an $digest loop and this is the first time we are scheduling async\n        // task also schedule async auto-flush\n        if (!$rootScope.$$phase && !$rootScope.$$asyncQueue.length) {\n          $browser.defer(function() {\n            if ($rootScope.$$asyncQueue.length) {\n              $rootScope.$digest();\n            }\n          });\n        }\n\n        this.$$asyncQueue.push({scope: this, expression: expr});\n      },\n\n      $$postDigest : function(fn) {\n        this.$$postDigestQueue.push(fn);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$apply\n       * @kind function\n       *\n       * @description\n       * `$apply()` is used to execute an expression in angular from outside of the angular\n       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).\n       * Because we are calling into the angular framework we need to perform proper scope life\n       * cycle of {@link ng.$exceptionHandler exception handling},\n       * {@link ng.$rootScope.Scope#$digest executing watches}.\n       *\n       * ## Life cycle\n       *\n       * # Pseudo-Code of `$apply()`\n       * ```js\n           function $apply(expr) {\n             try {\n               return $eval(expr);\n             } catch (e) {\n               $exceptionHandler(e);\n             } finally {\n               $root.$digest();\n             }\n           }\n       * ```\n       *\n       *\n       * Scope's `$apply()` method transitions through the following stages:\n       *\n       * 1. The {@link guide/expression expression} is executed using the\n       *    {@link ng.$rootScope.Scope#$eval $eval()} method.\n       * 2. Any exceptions from the execution of the expression are forwarded to the\n       *    {@link ng.$exceptionHandler $exceptionHandler} service.\n       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the\n       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.\n       *\n       *\n       * @param {(string|function())=} exp An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       *\n       * @returns {*} The result of evaluating the expression.\n       */\n      $apply: function(expr) {\n        try {\n          beginPhase('$apply');\n          return this.$eval(expr);\n        } catch (e) {\n          $exceptionHandler(e);\n        } finally {\n          clearPhase();\n          try {\n            $rootScope.$digest();\n          } catch (e) {\n            $exceptionHandler(e);\n            throw e;\n          }\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$on\n       * @kind function\n       *\n       * @description\n       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for\n       * discussion of event life cycle.\n       *\n       * The event listener function format is: `function(event, args...)`. The `event` object\n       * passed into the listener has the following attributes:\n       *\n       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or\n       *     `$broadcast`-ed.\n       *   - `currentScope` - `{Scope}`: the current scope which is handling the event.\n       *   - `name` - `{string}`: name of the event.\n       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel\n       *     further event propagation (available only for events that were `$emit`-ed).\n       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag\n       *     to true.\n       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.\n       *\n       * @param {string} name Event name to listen on.\n       * @param {function(event, ...args)} listener Function to call when the event is emitted.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $on: function(name, listener) {\n        var namedListeners = this.$$listeners[name];\n        if (!namedListeners) {\n          this.$$listeners[name] = namedListeners = [];\n        }\n        namedListeners.push(listener);\n\n        var current = this;\n        do {\n          if (!current.$$listenerCount[name]) {\n            current.$$listenerCount[name] = 0;\n          }\n          current.$$listenerCount[name]++;\n        } while ((current = current.$parent));\n\n        var self = this;\n        return function() {\n          var indexOfListener = indexOf(namedListeners, listener);\n          if (indexOfListener !== -1) {\n            namedListeners[indexOfListener] = null;\n            decrementListenerCount(self, 1, name);\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$emit\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` upwards through the scope hierarchy notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$emit` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event traverses upwards toward the root scope and calls all\n       * registered listeners along the way. The event will stop propagating if one of the listeners\n       * cancels it.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to emit.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).\n       */\n      $emit: function(name, args) {\n        var empty = [],\n            namedListeners,\n            scope = this,\n            stopPropagation = false,\n            event = {\n              name: name,\n              targetScope: scope,\n              stopPropagation: function() {stopPropagation = true;},\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            i, length;\n\n        do {\n          namedListeners = scope.$$listeners[name] || empty;\n          event.currentScope = scope;\n          for (i=0, length=namedListeners.length; i<length; i++) {\n\n            // if listeners were deregistered, defragment the array\n            if (!namedListeners[i]) {\n              namedListeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n            try {\n              //allow all listeners attached to the current scope to run\n              namedListeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          //if any listener on the current scope stops propagation, prevent bubbling\n          if (stopPropagation) return event;\n          //traverse upwards\n          scope = scope.$parent;\n        } while (scope);\n\n        return event;\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$broadcast\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$broadcast` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current\n       * scope and calls all registered listeners along the way. The event cannot be canceled.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to broadcast.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}\n       */\n      $broadcast: function(name, args) {\n        var target = this,\n            current = target,\n            next = target,\n            event = {\n              name: name,\n              targetScope: target,\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            listeners, i, length;\n\n        //down while you can, then up and next sibling or up and next sibling until back at root\n        while ((current = next)) {\n          event.currentScope = current;\n          listeners = current.$$listeners[name] || [];\n          for (i=0, length = listeners.length; i<length; i++) {\n            // if listeners were deregistered, defragment the array\n            if (!listeners[i]) {\n              listeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n\n            try {\n              listeners[i].apply(null, listenerArgs);\n            } catch(e) {\n              $exceptionHandler(e);\n            }\n          }\n\n          // Insanity Warning: scope depth-first traversal\n          // yes, this code is a bit crazy, but it works and we have tests to prove it!\n          // this piece should be kept in sync with the traversal in $digest\n          // (though it differs due to having the extra check for $$listenerCount)\n          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||\n              (current !== target && current.$$nextSibling)))) {\n            while(current !== target && !(next = current.$$nextSibling)) {\n              current = current.$parent;\n            }\n          }\n        }\n\n        return event;\n      }\n    };\n\n    var $rootScope = new Scope();\n\n    return $rootScope;\n\n\n    function beginPhase(phase) {\n      if ($rootScope.$$phase) {\n        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);\n      }\n\n      $rootScope.$$phase = phase;\n    }\n\n    function clearPhase() {\n      $rootScope.$$phase = null;\n    }\n\n    function compileToFn(exp, name) {\n      var fn = $parse(exp);\n      assertArgFn(fn, name);\n      return fn;\n    }\n\n    function decrementListenerCount(current, count, name) {\n      do {\n        current.$$listenerCount[name] -= count;\n\n        if (current.$$listenerCount[name] === 0) {\n          delete current.$$listenerCount[name];\n        }\n      } while ((current = current.$parent));\n    }\n\n    /**\n     * function used as an initial value for watchers.\n     * because it's unique we can easily tell it apart from other values\n     */\n    function initWatchVal() {}\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $rootElement\n *\n * @description\n * The root element of Angular application. This is either the element where {@link\n * ng.directive:ngApp ngApp} was declared or the element passed into\n * {@link angular.bootstrap}. The element represent the root element of application. It is also the\n * location where the applications {@link auto.$injector $injector} service gets\n * published, it can be retrieved using `$rootElement.injector()`.\n */\n\n\n// the implementation is in angular.bootstrap\n\n/**\n * @description\n * Private service to sanitize uris for links and images. Used by $compile and $sanitize.\n */\nfunction $$SanitizeUriProvider() {\n  var aHrefSanitizationWhitelist = /^\\s*(https?|ftp|mailto|tel|file):/,\n    imgSrcSanitizationWhitelist = /^\\s*((https?|ftp|file):|data:image\\/)/;\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      aHrefSanitizationWhitelist = regexp;\n      return this;\n    }\n    return aHrefSanitizationWhitelist;\n  };\n\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      imgSrcSanitizationWhitelist = regexp;\n      return this;\n    }\n    return imgSrcSanitizationWhitelist;\n  };\n\n  this.$get = function() {\n    return function sanitizeUri(uri, isImage) {\n      var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;\n      var normalizedVal;\n      // NOTE: urlResolve() doesn't support IE < 8 so we don't sanitize for that case.\n      if (!msie || msie >= 8 ) {\n        normalizedVal = urlResolve(uri).href;\n        if (normalizedVal !== '' && !normalizedVal.match(regex)) {\n          return 'unsafe:'+normalizedVal;\n        }\n      }\n      return uri;\n    };\n  };\n}\n\nvar $sceMinErr = minErr('$sce');\n\nvar SCE_CONTEXTS = {\n  HTML: 'html',\n  CSS: 'css',\n  URL: 'url',\n  // RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a\n  // url.  (e.g. ng-include, script src, templateUrl)\n  RESOURCE_URL: 'resourceUrl',\n  JS: 'js'\n};\n\n// Helper functions follow.\n\n// Copied from:\n// http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962\n// Prereq: s is a string.\nfunction escapeForRegexp(s) {\n  return s.replace(/([-()\\[\\]{}+?*.$\\^|,:#<!\\\\])/g, '\\\\$1').\n           replace(/\\x08/g, '\\\\x08');\n}\n\n\nfunction adjustMatcher(matcher) {\n  if (matcher === 'self') {\n    return matcher;\n  } else if (isString(matcher)) {\n    // Strings match exactly except for 2 wildcards - '*' and '**'.\n    // '*' matches any character except those from the set ':/.?&'.\n    // '**' matches any character (like .* in a RegExp).\n    // More than 2 *'s raises an error as it's ill defined.\n    if (matcher.indexOf('***') > -1) {\n      throw $sceMinErr('iwcard',\n          'Illegal sequence *** in string matcher.  String: {0}', matcher);\n    }\n    matcher = escapeForRegexp(matcher).\n                  replace('\\\\*\\\\*', '.*').\n                  replace('\\\\*', '[^:/.?&;]*');\n    return new RegExp('^' + matcher + '$');\n  } else if (isRegExp(matcher)) {\n    // The only other type of matcher allowed is a Regexp.\n    // Match entire URL / disallow partial matches.\n    // Flags are reset (i.e. no global, ignoreCase or multiline)\n    return new RegExp('^' + matcher.source + '$');\n  } else {\n    throw $sceMinErr('imatcher',\n        'Matchers may only be \"self\", string patterns or RegExp objects');\n  }\n}\n\n\nfunction adjustMatchers(matchers) {\n  var adjustedMatchers = [];\n  if (isDefined(matchers)) {\n    forEach(matchers, function(matcher) {\n      adjustedMatchers.push(adjustMatcher(matcher));\n    });\n  }\n  return adjustedMatchers;\n}\n\n\n/**\n * @ngdoc service\n * @name $sceDelegate\n * @kind function\n *\n * @description\n *\n * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict\n * Contextual Escaping (SCE)} services to AngularJS.\n *\n * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of\n * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is\n * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to\n * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things\n * work because `$sce` delegates to `$sceDelegate` for these operations.\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.\n *\n * The default instance of `$sceDelegate` should work out of the box with little pain.  While you\n * can override it completely to change the behavior of `$sce`, the common case would\n * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting\n * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as\n * templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist\n * $sceDelegateProvider.resourceUrlWhitelist} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n */\n\n/**\n * @ngdoc provider\n * @name $sceDelegateProvider\n * @description\n *\n * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate\n * $sceDelegate} service.  This allows one to get/set the whitelists and blacklists used to ensure\n * that the URLs used for sourcing Angular templates are safe.  Refer {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and\n * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n *\n * For the general details about this service in Angular, read the main page for {@link ng.$sce\n * Strict Contextual Escaping (SCE)}.\n *\n * **Example**:  Consider the following case. <a name=\"example\"></a>\n *\n * - your app is hosted at url `http://myapp.example.com/`\n * - but some of your templates are hosted on other domains you control such as\n *   `http://srv01.assets.example.com/`,  `http://srv02.assets.example.com/`, etc.\n * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.\n *\n * Here is what a secure configuration for this scenario might look like:\n *\n * ```\n *  angular.module('myApp', []).config(function($sceDelegateProvider) {\n *    $sceDelegateProvider.resourceUrlWhitelist([\n *      // Allow same origin resource loads.\n *      'self',\n *      // Allow loading from our assets domain.  Notice the difference between * and **.\n *      'http://srv*.assets.example.com/**'\n *    ]);\n *\n *    // The blacklist overrides the whitelist so the open redirect here is blocked.\n *    $sceDelegateProvider.resourceUrlBlacklist([\n *      'http://myapp.example.com/clickThru**'\n *    ]);\n *  });\n * ```\n */\n\nfunction $SceDelegateProvider() {\n  this.SCE_CONTEXTS = SCE_CONTEXTS;\n\n  // Resource URLs can also be trusted by policy.\n  var resourceUrlWhitelist = ['self'],\n      resourceUrlBlacklist = [];\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlWhitelist\n   * @kind function\n   *\n   * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.\n   *\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.\n   *\n   *     Note: **an empty whitelist array will block all URLs**!\n   *\n   * @return {Array} the currently set whitelist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is `['self']` allowing only\n   * same origin resource requests.\n   *\n   * @description\n   * Sets/Gets the whitelist of trusted resource URLs.\n   */\n  this.resourceUrlWhitelist = function (value) {\n    if (arguments.length) {\n      resourceUrlWhitelist = adjustMatchers(value);\n    }\n    return resourceUrlWhitelist;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlBlacklist\n   * @kind function\n   *\n   * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.\n   *\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.\n   *\n   *     The typical usage for the blacklist is to **block\n   *     [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as\n   *     these would otherwise be trusted but actually return content from the redirected domain.\n   *\n   *     Finally, **the blacklist overrides the whitelist** and has the final say.\n   *\n   * @return {Array} the currently set blacklist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there\n   * is no blacklist.)\n   *\n   * @description\n   * Sets/Gets the blacklist of trusted resource URLs.\n   */\n\n  this.resourceUrlBlacklist = function (value) {\n    if (arguments.length) {\n      resourceUrlBlacklist = adjustMatchers(value);\n    }\n    return resourceUrlBlacklist;\n  };\n\n  this.$get = ['$injector', function($injector) {\n\n    var htmlSanitizer = function htmlSanitizer(html) {\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    };\n\n    if ($injector.has('$sanitize')) {\n      htmlSanitizer = $injector.get('$sanitize');\n    }\n\n\n    function matchUrl(matcher, parsedUrl) {\n      if (matcher === 'self') {\n        return urlIsSameOrigin(parsedUrl);\n      } else {\n        // definitely a regex.  See adjustMatchers()\n        return !!matcher.exec(parsedUrl.href);\n      }\n    }\n\n    function isResourceUrlAllowedByPolicy(url) {\n      var parsedUrl = urlResolve(url.toString());\n      var i, n, allowed = false;\n      // Ensure that at least one item from the whitelist allows this url.\n      for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {\n        if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {\n          allowed = true;\n          break;\n        }\n      }\n      if (allowed) {\n        // Ensure that no item from the blacklist blocked this url.\n        for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {\n          if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {\n            allowed = false;\n            break;\n          }\n        }\n      }\n      return allowed;\n    }\n\n    function generateHolderType(Base) {\n      var holderType = function TrustedValueHolderType(trustedValue) {\n        this.$$unwrapTrustedValue = function() {\n          return trustedValue;\n        };\n      };\n      if (Base) {\n        holderType.prototype = new Base();\n      }\n      holderType.prototype.valueOf = function sceValueOf() {\n        return this.$$unwrapTrustedValue();\n      };\n      holderType.prototype.toString = function sceToString() {\n        return this.$$unwrapTrustedValue().toString();\n      };\n      return holderType;\n    }\n\n    var trustedValueHolderBase = generateHolderType(),\n        byType = {};\n\n    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#trustAs\n     *\n     * @description\n     * Returns an object that is trusted by angular for use in specified strict\n     * contextual escaping contexts (such as ng-bind-html, ng-include, any src\n     * attribute interpolation, any dom event binding attribute interpolation\n     * such as for onclick,  etc.) that uses the provided value.\n     * See {@link ng.$sce $sce} for enabling strict contextual escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resourceUrl, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n    function trustAs(type, trustedValue) {\n      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (!Constructor) {\n        throw $sceMinErr('icontext',\n            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',\n            type, trustedValue);\n      }\n      if (trustedValue === null || trustedValue === undefined || trustedValue === '') {\n        return trustedValue;\n      }\n      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting\n      // mutable objects, we ensure here that the value passed in is actually a string.\n      if (typeof trustedValue !== 'string') {\n        throw $sceMinErr('itype',\n            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',\n            type);\n      }\n      return new Constructor(trustedValue);\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#valueOf\n     *\n     * @description\n     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.\n     *\n     * If the passed parameter is not a value that had been returned by {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is.\n     *\n     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}\n     *      call or anything else.\n     * @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns\n     *     `value` unchanged.\n     */\n    function valueOf(maybeTrusted) {\n      if (maybeTrusted instanceof trustedValueHolderBase) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      } else {\n        return maybeTrusted;\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#getTrusted\n     *\n     * @description\n     * Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and\n     * returns the originally supplied value if the queried context type is a supertype of the\n     * created type.  If this condition isn't satisfied, throws an exception.\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} call.\n     * @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if valid in this context.  Otherwise, throws an exception.\n     */\n    function getTrusted(type, maybeTrusted) {\n      if (maybeTrusted === null || maybeTrusted === undefined || maybeTrusted === '') {\n        return maybeTrusted;\n      }\n      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (constructor && maybeTrusted instanceof constructor) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      }\n      // If we get here, then we may only take one of two actions.\n      // 1. sanitize the value for the requested type, or\n      // 2. throw an exception.\n      if (type === SCE_CONTEXTS.RESOURCE_URL) {\n        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {\n          return maybeTrusted;\n        } else {\n          throw $sceMinErr('insecurl',\n              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',\n              maybeTrusted.toString());\n        }\n      } else if (type === SCE_CONTEXTS.HTML) {\n        return htmlSanitizer(maybeTrusted);\n      }\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    }\n\n    return { trustAs: trustAs,\n             getTrusted: getTrusted,\n             valueOf: valueOf };\n  }];\n}\n\n\n/**\n * @ngdoc provider\n * @name $sceProvider\n * @description\n *\n * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.\n * -   enable/disable Strict Contextual Escaping (SCE) in a module\n * -   override the default implementation with a custom delegate\n *\n * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.\n */\n\n/* jshint maxlen: false*/\n\n/**\n * @ngdoc service\n * @name $sce\n * @kind function\n *\n * @description\n *\n * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.\n *\n * # Strict Contextual Escaping\n *\n * Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain\n * contexts to result in a value that is marked as safe to use for that context.  One example of\n * such a context is binding arbitrary html controlled by the user via `ng-bind-html`.  We refer\n * to these contexts as privileged or SCE contexts.\n *\n * As of version 1.2, Angular ships with SCE enabled by default.\n *\n * Note:  When enabled (the default), IE8 in quirks mode is not supported.  In this mode, IE8 allows\n * one to execute arbitrary javascript by the use of the expression() syntax.  Refer\n * <http://blogs.msdn.com/b/ie/archive/2008/10/16/ending-expressions.aspx> to learn more about them.\n * You can ensure your document is in standards mode and not quirks mode by adding `<!doctype html>`\n * to the top of your HTML document.\n *\n * SCE assists in writing code in way that (a) is secure by default and (b) makes auditing for\n * security vulnerabilities such as XSS, clickjacking, etc. a lot easier.\n *\n * Here's an example of a binding in a privileged context:\n *\n * ```\n * <input ng-model=\"userHtml\">\n * <div ng-bind-html=\"userHtml\"></div>\n * ```\n *\n * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE\n * disabled, this application allows the user to render arbitrary HTML into the DIV.\n * In a more realistic example, one may be rendering user comments, blog articles, etc. via\n * bindings.  (HTML is just one example of a context where rendering user controlled input creates\n * security vulnerabilities.)\n *\n * For the case of HTML, you might use a library, either on the client side, or on the server side,\n * to sanitize unsafe HTML before binding to the value and rendering it in the document.\n *\n * How would you ensure that every place that used these types of bindings was bound to a value that\n * was sanitized by your library (or returned as safe for rendering by your server?)  How can you\n * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some\n * properties/fields and forgot to update the binding to the sanitized value?\n *\n * To be secure by default, you want to ensure that any such bindings are disallowed unless you can\n * determine that something explicitly says it's safe to use a value for binding in that\n * context.  You can then audit your code (a simple grep would do) to ensure that this is only done\n * for those values that you can easily tell are safe - because they were received from your server,\n * sanitized by your library, etc.  You can organize your codebase to help with this - perhaps\n * allowing only the files in a specific directory to do this.  Ensuring that the internal API\n * exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task.\n *\n * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}\n * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to\n * obtain values that will be accepted by SCE / privileged contexts.\n *\n *\n * ## How does it work?\n *\n * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted\n * $sce.getTrusted(context, value)} rather than to the value directly.  Directives use {@link\n * ng.$sce#parse $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the\n * {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals.\n *\n * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link\n * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly\n * simplified):\n *\n * ```\n * var ngBindHtmlDirective = ['$sce', function($sce) {\n *   return function(scope, element, attr) {\n *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {\n *       element.html(value || '');\n *     });\n *   };\n * }];\n * ```\n *\n * ## Impact on loading templates\n *\n * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as\n * `templateUrl`'s specified by {@link guide/directive directives}.\n *\n * By default, Angular only loads templates from the same domain and protocol as the application\n * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or\n * protocols, you may either either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist\n * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.\n *\n * *Please note*:\n * The browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy apply in addition to this and may further restrict whether the template is successfully\n * loaded.  This means that without the right CORS policy, loading templates from a different domain\n * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some\n * browsers.\n *\n * ## This feels like too much overhead for the developer?\n *\n * It's important to remember that SCE only applies to interpolation expressions.\n *\n * If your expressions are constant literals, they're automatically trusted and you don't need to\n * call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g.\n * `<div ng-bind-html=\"'<b>implicitly trusted</b>'\"></div>`) just works.\n *\n * Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them\n * through {@link ng.$sce#getTrusted $sce.getTrusted}.  SCE doesn't play a role here.\n *\n * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load\n * templates in `ng-include` from your application's domain without having to even know about SCE.\n * It blocks loading templates from other domains or loading templates over http from an https\n * served document.  You can change these by setting your own custom {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.\n *\n * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an\n * application that's secure and can be audited to verify that with much more ease than bolting\n * security onto an application later.\n *\n * <a name=\"contexts\"></a>\n * ## What trusted context types are supported?\n *\n * | Context             | Notes          |\n * |---------------------|----------------|\n * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. |\n * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |\n * | `$sce.URL`          | For URLs that are safe to follow as links.  Currently unused (`<a href=` and `<img src=` sanitize their urls and don't constitute an SCE context. |\n * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. |\n * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |\n *\n * ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name=\"resourceUrlPatternItem\"></a>\n *\n *  Each element in these arrays must be one of the following:\n *\n *  - **'self'**\n *    - The special **string**, `'self'`, can be used to match against all URLs of the **same\n *      domain** as the application document using the **same protocol**.\n *  - **String** (except the special value `'self'`)\n *    - The string is matched against the full *normalized / absolute URL* of the resource\n *      being tested (substring matches are not good enough.)\n *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters\n *      match themselves.\n *    - `*`: matches zero or more occurrences of any character other than one of the following 6\n *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and ';'.  It's a useful wildcard for use\n *      in a whitelist.\n *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not\n *      not appropriate to use in for a scheme, domain, etc. as it would match too much.  (e.g.\n *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might\n *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.\n *      http://foo.example.com/templates/**).\n *  - **RegExp** (*see caveat below*)\n *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax\n *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to\n *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should\n *      have good test coverage.).  For instance, the use of `.` in the regex is correct only in a\n *      small number of cases.  A `.` character in the regex used when matching the scheme or a\n *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It\n *      is highly recommended to use the string patterns and only fall back to regular expressions\n *      if they as a last resort.\n *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is\n *      matched against the **entire** *normalized / absolute URL* of the resource being tested\n *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags\n *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.\n *    - If you are generating your JavaScript from some other templating engine (not\n *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),\n *      remember to escape your regular expression (and be aware that you might need more than\n *      one level of escaping depending on your templating engine and the way you interpolated\n *      the value.)  Do make use of your platform's escaping mechanism as it might be good\n *      enough before coding your own.  e.g. Ruby has\n *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)\n *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).\n *      Javascript lacks a similar built in function for escaping.  Take a look at Google\n *      Closure library's [goog.string.regExpEscape(s)](\n *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.\n *\n * ## Show me an example using SCE.\n *\n * <example module=\"mySceApp\" deps=\"angular-sanitize.js\">\n * <file name=\"index.html\">\n *   <div ng-controller=\"myAppController as myCtrl\">\n *     <i ng-bind-html=\"myCtrl.explicitlyTrustedHtml\" id=\"explicitlyTrustedHtml\"></i><br><br>\n *     <b>User comments</b><br>\n *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when\n *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an\n *     exploit.\n *     <div class=\"well\">\n *       <div ng-repeat=\"userComment in myCtrl.userComments\">\n *         <b>{{userComment.name}}</b>:\n *         <span ng-bind-html=\"userComment.htmlComment\" class=\"htmlComment\"></span>\n *         <br>\n *       </div>\n *     </div>\n *   </div>\n * </file>\n *\n * <file name=\"script.js\">\n *   var mySceApp = angular.module('mySceApp', ['ngSanitize']);\n *\n *   mySceApp.controller(\"myAppController\", function myAppController($http, $templateCache, $sce) {\n *     var self = this;\n *     $http.get(\"test_data.json\", {cache: $templateCache}).success(function(userComments) {\n *       self.userComments = userComments;\n *     });\n *     self.explicitlyTrustedHtml = $sce.trustAsHtml(\n *         '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *         'sanitization.&quot;\">Hover over this text.</span>');\n *   });\n * </file>\n *\n * <file name=\"test_data.json\">\n * [\n *   { \"name\": \"Alice\",\n *     \"htmlComment\":\n *         \"<span onmouseover='this.textContent=\\\"PWN3D!\\\"'>Is <i>anyone</i> reading this?</span>\"\n *   },\n *   { \"name\": \"Bob\",\n *     \"htmlComment\": \"<i>Yes!</i>  Am I the only other one?\"\n *   }\n * ]\n * </file>\n *\n * <file name=\"protractor.js\" type=\"protractor\">\n *   describe('SCE doc demo', function() {\n *     it('should sanitize untrusted values', function() {\n *       expect(element.all(by.css('.htmlComment')).first().getInnerHtml())\n *           .toBe('<span>Is <i>anyone</i> reading this?</span>');\n *     });\n *\n *     it('should NOT sanitize explicitly trusted values', function() {\n *       expect(element(by.id('explicitlyTrustedHtml')).getInnerHtml()).toBe(\n *           '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *           'sanitization.&quot;\">Hover over this text.</span>');\n *     });\n *   });\n * </file>\n * </example>\n *\n *\n *\n * ## Can I disable SCE completely?\n *\n * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits\n * for little coding overhead.  It will be much harder to take an SCE disabled application and\n * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE\n * for cases where you have a lot of existing code that was written before SCE was introduced and\n * you're migrating them a module at a time.\n *\n * That said, here's how you can completely disable SCE:\n *\n * ```\n * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {\n *   // Completely disable SCE.  For demonstration purposes only!\n *   // Do not use in new projects.\n *   $sceProvider.enabled(false);\n * });\n * ```\n *\n */\n/* jshint maxlen: 100 */\n\nfunction $SceProvider() {\n  var enabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $sceProvider#enabled\n   * @kind function\n   *\n   * @param {boolean=} value If provided, then enables/disables SCE.\n   * @return {boolean} true if SCE is enabled, false otherwise.\n   *\n   * @description\n   * Enables/disables SCE and returns the current value.\n   */\n  this.enabled = function (value) {\n    if (arguments.length) {\n      enabled = !!value;\n    }\n    return enabled;\n  };\n\n\n  /* Design notes on the default implementation for SCE.\n   *\n   * The API contract for the SCE delegate\n   * -------------------------------------\n   * The SCE delegate object must provide the following 3 methods:\n   *\n   * - trustAs(contextEnum, value)\n   *     This method is used to tell the SCE service that the provided value is OK to use in the\n   *     contexts specified by contextEnum.  It must return an object that will be accepted by\n   *     getTrusted() for a compatible contextEnum and return this value.\n   *\n   * - valueOf(value)\n   *     For values that were not produced by trustAs(), return them as is.  For values that were\n   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if\n   *     trustAs is wrapping the given values into some type, this operation unwraps it when given\n   *     such a value.\n   *\n   * - getTrusted(contextEnum, value)\n   *     This function should return the a value that is safe to use in the context specified by\n   *     contextEnum or throw and exception otherwise.\n   *\n   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be\n   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For\n   * instance, an implementation could maintain a registry of all trusted objects by context.  In\n   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would\n   * return the same object passed in if it was found in the registry under a compatible context or\n   * throw an exception otherwise.  An implementation might only wrap values some of the time based\n   * on some criteria.  getTrusted() might return a value and not throw an exception for special\n   * constants or objects even if not wrapped.  All such implementations fulfill this contract.\n   *\n   *\n   * A note on the inheritance model for SCE contexts\n   * ------------------------------------------------\n   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This\n   * is purely an implementation details.\n   *\n   * The contract is simply this:\n   *\n   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)\n   *     will also succeed.\n   *\n   * Inheritance happens to capture this in a natural way.  In some future, we\n   * may not use inheritance anymore.  That is OK because no code outside of\n   * sce.js and sceSpecs.js would need to be aware of this detail.\n   */\n\n  this.$get = ['$parse', '$sniffer', '$sceDelegate', function(\n                $parse,   $sniffer,   $sceDelegate) {\n    // Prereq: Ensure that we're not running in IE8 quirks mode.  In that mode, IE allows\n    // the \"expression(javascript expression)\" syntax which is insecure.\n    if (enabled && $sniffer.msie && $sniffer.msieDocumentMode < 8) {\n      throw $sceMinErr('iequirks',\n        'Strict Contextual Escaping does not support Internet Explorer version < 9 in quirks ' +\n        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +\n        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');\n    }\n\n    var sce = shallowCopy(SCE_CONTEXTS);\n\n    /**\n     * @ngdoc method\n     * @name $sce#isEnabled\n     * @kind function\n     *\n     * @return {Boolean} true if SCE is enabled, false otherwise.  If you want to set the value, you\n     * have to do it at module config time on {@link ng.$sceProvider $sceProvider}.\n     *\n     * @description\n     * Returns a boolean indicating if SCE is enabled.\n     */\n    sce.isEnabled = function () {\n      return enabled;\n    };\n    sce.trustAs = $sceDelegate.trustAs;\n    sce.getTrusted = $sceDelegate.getTrusted;\n    sce.valueOf = $sceDelegate.valueOf;\n\n    if (!enabled) {\n      sce.trustAs = sce.getTrusted = function(type, value) { return value; };\n      sce.valueOf = identity;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAs\n     *\n     * @description\n     * Converts Angular {@link guide/expression expression} into a function.  This is like {@link\n     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it\n     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,\n     * *result*)}\n     *\n     * @param {string} type The kind of SCE context in which this result will be used.\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n    sce.parseAs = function sceParseAs(type, expr) {\n      var parsed = $parse(expr);\n      if (parsed.literal && parsed.constant) {\n        return parsed;\n      } else {\n        return function sceParseAsTrusted(self, locals) {\n          return sce.getTrusted(type, parsed(self, locals));\n        };\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAs\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.  As such,\n     * returns an object that is trusted by angular for use in specified strict contextual\n     * escaping contexts (such as ng-bind-html, ng-include, any src attribute\n     * interpolation, any dom event binding attribute interpolation such as for onclick,  etc.)\n     * that uses the provided value.  See * {@link ng.$sce $sce} for enabling strict contextual\n     * escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resource_url, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsHtml(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml\n     *     $sce.getTrustedHtml(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl\n     *     $sce.getTrustedUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl\n     *     $sce.getTrustedResourceUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the return\n     *     value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsJs(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs\n     *     $sce.getTrustedJs(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrusted\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,\n     * takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the\n     * originally supplied value if the queried context type is a supertype of the created type.\n     * If this condition isn't satisfied, throws an exception.\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`}\n     *                         call.\n     * @returns {*} The value the was originally provided to\n     *              {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context.\n     *              Otherwise, throws an exception.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedHtml(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedCss\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedCss(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedJs\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedJs(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.JS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsHtml(expression string)` →\n     *     {@link ng.$sce#parse `$sce.parseAs($sce.HTML, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsCss(value)` →\n     *     {@link ng.$sce#parse `$sce.parseAs($sce.CSS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsUrl(value)` →\n     *     {@link ng.$sce#parse `$sce.parseAs($sce.URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →\n     *     {@link ng.$sce#parse `$sce.parseAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsJs(value)` →\n     *     {@link ng.$sce#parse `$sce.parseAs($sce.JS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    // Shorthand delegations.\n    var parse = sce.parseAs,\n        getTrusted = sce.getTrusted,\n        trustAs = sce.trustAs;\n\n    forEach(SCE_CONTEXTS, function (enumValue, name) {\n      var lName = lowercase(name);\n      sce[camelCase(\"parse_as_\" + lName)] = function (expr) {\n        return parse(enumValue, expr);\n      };\n      sce[camelCase(\"get_trusted_\" + lName)] = function (value) {\n        return getTrusted(enumValue, value);\n      };\n      sce[camelCase(\"trust_as_\" + lName)] = function (value) {\n        return trustAs(enumValue, value);\n      };\n    });\n\n    return sce;\n  }];\n}\n\n/**\n * !!! This is an undocumented \"private\" service !!!\n *\n * @name $sniffer\n * @requires $window\n * @requires $document\n *\n * @property {boolean} history Does the browser support html5 history api ?\n * @property {boolean} hashchange Does the browser support hashchange event ?\n * @property {boolean} transitions Does the browser support CSS transition events ?\n * @property {boolean} animations Does the browser support CSS animation events ?\n *\n * @description\n * This is very simple implementation of testing browser's features.\n */\nfunction $SnifferProvider() {\n  this.$get = ['$window', '$document', function($window, $document) {\n    var eventSupport = {},\n        android =\n          int((/android (\\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),\n        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),\n        document = $document[0] || {},\n        documentMode = document.documentMode,\n        vendorPrefix,\n        vendorRegex = /^(Moz|webkit|O|ms)(?=[A-Z])/,\n        bodyStyle = document.body && document.body.style,\n        transitions = false,\n        animations = false,\n        match;\n\n    if (bodyStyle) {\n      for(var prop in bodyStyle) {\n        if(match = vendorRegex.exec(prop)) {\n          vendorPrefix = match[0];\n          vendorPrefix = vendorPrefix.substr(0, 1).toUpperCase() + vendorPrefix.substr(1);\n          break;\n        }\n      }\n\n      if(!vendorPrefix) {\n        vendorPrefix = ('WebkitOpacity' in bodyStyle) && 'webkit';\n      }\n\n      transitions = !!(('transition' in bodyStyle) || (vendorPrefix + 'Transition' in bodyStyle));\n      animations  = !!(('animation' in bodyStyle) || (vendorPrefix + 'Animation' in bodyStyle));\n\n      if (android && (!transitions||!animations)) {\n        transitions = isString(document.body.style.webkitTransition);\n        animations = isString(document.body.style.webkitAnimation);\n      }\n    }\n\n\n    return {\n      // Android has history.pushState, but it does not update location correctly\n      // so let's not use the history API at all.\n      // http://code.google.com/p/android/issues/detail?id=17471\n      // https://github.com/angular/angular.js/issues/904\n\n      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has\n      // so let's not use the history API also\n      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined\n      // jshint -W018\n      history: !!($window.history && $window.history.pushState && !(android < 4) && !boxee),\n      // jshint +W018\n      hashchange: 'onhashchange' in $window &&\n                  // IE8 compatible mode lies\n                  (!documentMode || documentMode > 7),\n      hasEvent: function(event) {\n        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have\n        // it. In particular the event is not fired when backspace or delete key are pressed or\n        // when cut operation is performed.\n        if (event == 'input' && msie == 9) return false;\n\n        if (isUndefined(eventSupport[event])) {\n          var divElm = document.createElement('div');\n          eventSupport[event] = 'on' + event in divElm;\n        }\n\n        return eventSupport[event];\n      },\n      csp: csp(),\n      vendorPrefix: vendorPrefix,\n      transitions : transitions,\n      animations : animations,\n      android: android,\n      msie : msie,\n      msieDocumentMode: documentMode\n    };\n  }];\n}\n\nfunction $TimeoutProvider() {\n  this.$get = ['$rootScope', '$browser', '$q', '$exceptionHandler',\n       function($rootScope,   $browser,   $q,   $exceptionHandler) {\n    var deferreds = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $timeout\n      *\n      * @description\n      * Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch\n      * block and delegates any exceptions to\n      * {@link ng.$exceptionHandler $exceptionHandler} service.\n      *\n      * The return value of registering a timeout function is a promise, which will be resolved when\n      * the timeout is reached and the timeout function is executed.\n      *\n      * To cancel a timeout request, call `$timeout.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to\n      * synchronously flush the queue of deferred functions.\n      *\n      * @param {function()} fn A function, whose execution should be delayed.\n      * @param {number=} [delay=0] Delay in milliseconds.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @returns {Promise} Promise that will be resolved when the timeout is reached. The value this\n      *   promise will be resolved with is the return value of the `fn` function.\n      *\n      */\n    function timeout(fn, delay, invokeApply) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          timeoutId;\n\n      timeoutId = $browser.defer(function() {\n        try {\n          deferred.resolve(fn());\n        } catch(e) {\n          deferred.reject(e);\n          $exceptionHandler(e);\n        }\n        finally {\n          delete deferreds[promise.$$timeoutId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }, delay);\n\n      promise.$$timeoutId = timeoutId;\n      deferreds[timeoutId] = deferred;\n\n      return promise;\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $timeout#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`. As a result of this, the promise will be\n      * resolved with a rejection.\n      *\n      * @param {Promise=} promise Promise returned by the `$timeout` function.\n      * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n      *   canceled.\n      */\n    timeout.cancel = function(promise) {\n      if (promise && promise.$$timeoutId in deferreds) {\n        deferreds[promise.$$timeoutId].reject('canceled');\n        delete deferreds[promise.$$timeoutId];\n        return $browser.defer.cancel(promise.$$timeoutId);\n      }\n      return false;\n    };\n\n    return timeout;\n  }];\n}\n\n// NOTE:  The usage of window and document instead of $window and $document here is\n// deliberate.  This service depends on the specific behavior of anchor nodes created by the\n// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and\n// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it\n// doesn't know about mocked locations and resolves URLs to the real document - which is\n// exactly the behavior needed here.  There is little value is mocking these out for this\n// service.\nvar urlParsingNode = document.createElement(\"a\");\nvar originUrl = urlResolve(window.location.href, true);\n\n\n/**\n *\n * Implementation Notes for non-IE browsers\n * ----------------------------------------\n * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,\n * results both in the normalizing and parsing of the URL.  Normalizing means that a relative\n * URL will be resolved into an absolute URL in the context of the application document.\n * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related\n * properties are all populated to reflect the normalized URL.  This approach has wide\n * compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc.  See\n * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *\n * Implementation Notes for IE\n * ---------------------------\n * IE >= 8 and <= 10 normalizes the URL when assigned to the anchor node similar to the other\n * browsers.  However, the parsed components will not be set if the URL assigned did not specify\n * them.  (e.g. if you assign a.href = \"foo\", then a.protocol, a.host, etc. will be empty.)  We\n * work around that by performing the parsing in a 2nd step by taking a previously normalized\n * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the\n * properties such as protocol, hostname, port, etc.\n *\n * IE7 does not normalize the URL when assigned to an anchor node.  (Apparently, it does, if one\n * uses the inner HTML approach to assign the URL as part of an HTML snippet -\n * http://stackoverflow.com/a/472729)  However, setting img[src] does normalize the URL.\n * Unfortunately, setting img[src] to something like \"javascript:foo\" on IE throws an exception.\n * Since the primary usage for normalizing URLs is to sanitize such URLs, we can't use that\n * method and IE < 8 is unsupported.\n *\n * References:\n *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement\n *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *   http://url.spec.whatwg.org/#urlutils\n *   https://github.com/angular/angular.js/pull/2902\n *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/\n *\n * @kind function\n * @param {string} url The URL to be parsed.\n * @description Normalizes and parses a URL.\n * @returns {object} Returns the normalized URL as a dictionary.\n *\n *   | member name   | Description    |\n *   |---------------|----------------|\n *   | href          | A normalized version of the provided URL if it was not an absolute URL |\n *   | protocol      | The protocol including the trailing colon                              |\n *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |\n *   | search        | The search params, minus the question mark                             |\n *   | hash          | The hash string, minus the hash symbol\n *   | hostname      | The hostname\n *   | port          | The port, without \":\"\n *   | pathname      | The pathname, beginning with \"/\"\n *\n */\nfunction urlResolve(url, base) {\n  var href = url;\n\n  if (msie) {\n    // Normalize before parse.  Refer Implementation Notes on why this is\n    // done in two steps on IE.\n    urlParsingNode.setAttribute(\"href\", href);\n    href = urlParsingNode.href;\n  }\n\n  urlParsingNode.setAttribute('href', href);\n\n  // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n  return {\n    href: urlParsingNode.href,\n    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n    host: urlParsingNode.host,\n    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n    hostname: urlParsingNode.hostname,\n    port: urlParsingNode.port,\n    pathname: (urlParsingNode.pathname.charAt(0) === '/')\n      ? urlParsingNode.pathname\n      : '/' + urlParsingNode.pathname\n  };\n}\n\n/**\n * Parse a request URL and determine whether this is a same-origin request as the application document.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the request is for the same origin as the application document.\n */\nfunction urlIsSameOrigin(requestUrl) {\n  var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl;\n  return (parsed.protocol === originUrl.protocol &&\n          parsed.host === originUrl.host);\n}\n\n/**\n * @ngdoc service\n * @name $window\n *\n * @description\n * A reference to the browser's `window` object. While `window`\n * is globally available in JavaScript, it causes testability problems, because\n * it is a global variable. In angular we always refer to it through the\n * `$window` service, so it may be overridden, removed or mocked for testing.\n *\n * Expressions, like the one defined for the `ngClick` directive in the example\n * below, are evaluated with respect to the current scope.  Therefore, there is\n * no risk of inadvertently coding in a dependency on a global value in such an\n * expression.\n *\n * @example\n   <example module=\"windowExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('windowExample', [])\n           .controller('ExampleController', ['$scope', '$window', function ($scope, $window) {\n             $scope.greeting = 'Hello, World!';\n             $scope.doGreeting = function(greeting) {\n               $window.alert(greeting);\n             };\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"text\" ng-model=\"greeting\" />\n         <button ng-click=\"doGreeting(greeting)\">ALERT</button>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n      it('should display the greeting in the input box', function() {\n       element(by.model('greeting')).sendKeys('Hello, E2E Tests');\n       // If we click the button it will block the test runner\n       // element(':button').click();\n      });\n     </file>\n   </example>\n */\nfunction $WindowProvider(){\n  this.$get = valueFn(window);\n}\n\n/* global currencyFilter: true,\n dateFilter: true,\n filterFilter: true,\n jsonFilter: true,\n limitToFilter: true,\n lowercaseFilter: true,\n numberFilter: true,\n orderByFilter: true,\n uppercaseFilter: true,\n */\n\n/**\n * @ngdoc provider\n * @name $filterProvider\n * @description\n *\n * Filters are just functions which transform input to an output. However filters need to be\n * Dependency Injected. To achieve this a filter definition consists of a factory function which is\n * annotated with dependencies and is responsible for creating a filter function.\n *\n * ```js\n *   // Filter registration\n *   function MyModule($provide, $filterProvider) {\n *     // create a service to demonstrate injection (not always needed)\n *     $provide.value('greet', function(name){\n *       return 'Hello ' + name + '!';\n *     });\n *\n *     // register a filter factory which uses the\n *     // greet service to demonstrate DI.\n *     $filterProvider.register('greet', function(greet){\n *       // return the filter function which uses the greet service\n *       // to generate salutation\n *       return function(text) {\n *         // filters need to be forgiving so check input validity\n *         return text && greet(text) || text;\n *       };\n *     });\n *   }\n * ```\n *\n * The filter function is registered with the `$injector` under the filter name suffix with\n * `Filter`.\n *\n * ```js\n *   it('should be the same instance', inject(\n *     function($filterProvider) {\n *       $filterProvider.register('reverse', function(){\n *         return ...;\n *       });\n *     },\n *     function($filter, reverseFilter) {\n *       expect($filter('reverse')).toBe(reverseFilter);\n *     });\n * ```\n *\n *\n * For more information about how angular filters work, and how to create your own filters, see\n * {@link guide/filter Filters} in the Angular Developer Guide.\n */\n\n/**\n * @ngdoc service\n * @name $filter\n * @kind function\n * @description\n * Filters are used for formatting data displayed to the user.\n *\n * The general syntax in templates is as follows:\n *\n *         {{ expression [| filter_name[:parameter_value] ... ] }}\n *\n * @param {String} name Name of the filter function to retrieve\n * @return {Function} the filter function\n * @example\n   <example name=\"$filter\" module=\"filterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainCtrl\">\n        <h3>{{ originalText }}</h3>\n        <h3>{{ filteredText }}</h3>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n      angular.module('filterExample', [])\n      .controller('MainCtrl', function($scope, $filter) {\n        $scope.originalText = 'hello';\n        $scope.filteredText = $filter('uppercase')($scope.originalText);\n      });\n     </file>\n   </example>\n  */\n$FilterProvider.$inject = ['$provide'];\nfunction $FilterProvider($provide) {\n  var suffix = 'Filter';\n\n  /**\n   * @ngdoc method\n   * @name $filterProvider#register\n   * @param {string|Object} name Name of the filter function, or an object map of filters where\n   *    the keys are the filter names and the values are the filter factories.\n   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map\n   *    of the registered filter instances.\n   */\n  function register(name, factory) {\n    if(isObject(name)) {\n      var filters = {};\n      forEach(name, function(filter, key) {\n        filters[key] = register(key, filter);\n      });\n      return filters;\n    } else {\n      return $provide.factory(name + suffix, factory);\n    }\n  }\n  this.register = register;\n\n  this.$get = ['$injector', function($injector) {\n    return function(name) {\n      return $injector.get(name + suffix);\n    };\n  }];\n\n  ////////////////////////////////////////\n\n  /* global\n    currencyFilter: false,\n    dateFilter: false,\n    filterFilter: false,\n    jsonFilter: false,\n    limitToFilter: false,\n    lowercaseFilter: false,\n    numberFilter: false,\n    orderByFilter: false,\n    uppercaseFilter: false,\n  */\n\n  register('currency', currencyFilter);\n  register('date', dateFilter);\n  register('filter', filterFilter);\n  register('json', jsonFilter);\n  register('limitTo', limitToFilter);\n  register('lowercase', lowercaseFilter);\n  register('number', numberFilter);\n  register('orderBy', orderByFilter);\n  register('uppercase', uppercaseFilter);\n}\n\n/**\n * @ngdoc filter\n * @name filter\n * @kind function\n *\n * @description\n * Selects a subset of items from `array` and returns it as a new array.\n *\n * @param {Array} array The source array.\n * @param {string|Object|function()} expression The predicate to be used for selecting items from\n *   `array`.\n *\n *   Can be one of:\n *\n *   - `string`: The string is evaluated as an expression and the resulting value is used for substring match against\n *     the contents of the `array`. All strings or objects with string properties in `array` that contain this string\n *     will be returned. The predicate can be negated by prefixing the string with `!`.\n *\n *   - `Object`: A pattern object can be used to filter specific properties on objects contained\n *     by `array`. For example `{name:\"M\", phone:\"1\"}` predicate will return an array of items\n *     which have property `name` containing \"M\" and property `phone` containing \"1\". A special\n *     property name `$` can be used (as in `{$:\"text\"}`) to accept a match against any\n *     property of the object. That's equivalent to the simple substring match with a `string`\n *     as described above. The predicate can be negated by prefixing the string with `!`.\n *     For Example `{name: \"!M\"}` predicate will return an array of items which have property `name`\n *     not containing \"M\".\n *\n *   - `function(value)`: A predicate function can be used to write arbitrary filters. The function is\n *     called for each element of `array`. The final result is an array of those elements that\n *     the predicate returned true for.\n *\n * @param {function(actual, expected)|true|undefined} comparator Comparator which is used in\n *     determining if the expected value (from the filter expression) and actual value (from\n *     the object in the array) should be considered a match.\n *\n *   Can be one of:\n *\n *   - `function(actual, expected)`:\n *     The function will be given the object value and the predicate value to compare and\n *     should return true if the item should be included in filtered result.\n *\n *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(expected, actual)}`.\n *     this is essentially strict comparison of expected and actual.\n *\n *   - `false|undefined`: A short hand for a function which will look for a substring match in case\n *     insensitive way.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <div ng-init=\"friends = [{name:'John', phone:'555-1276'},\n                                {name:'Mary', phone:'800-BIG-MARY'},\n                                {name:'Mike', phone:'555-4321'},\n                                {name:'Adam', phone:'555-5678'},\n                                {name:'Julie', phone:'555-8765'},\n                                {name:'Juliette', phone:'555-5678'}]\"></div>\n\n       Search: <input ng-model=\"searchText\">\n       <table id=\"searchTextResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friend in friends | filter:searchText\">\n           <td>{{friend.name}}</td>\n           <td>{{friend.phone}}</td>\n         </tr>\n       </table>\n       <hr>\n       Any: <input ng-model=\"search.$\"> <br>\n       Name only <input ng-model=\"search.name\"><br>\n       Phone only <input ng-model=\"search.phone\"><br>\n       Equality <input type=\"checkbox\" ng-model=\"strict\"><br>\n       <table id=\"searchObjResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friendObj in friends | filter:search:strict\">\n           <td>{{friendObj.name}}</td>\n           <td>{{friendObj.phone}}</td>\n         </tr>\n       </table>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var expectFriendNames = function(expectedNames, key) {\n         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {\n           arr.forEach(function(wd, i) {\n             expect(wd.getText()).toMatch(expectedNames[i]);\n           });\n         });\n       };\n\n       it('should search across all fields when filtering with a string', function() {\n         var searchText = element(by.model('searchText'));\n         searchText.clear();\n         searchText.sendKeys('m');\n         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');\n\n         searchText.clear();\n         searchText.sendKeys('76');\n         expectFriendNames(['John', 'Julie'], 'friend');\n       });\n\n       it('should search in specific fields when filtering with a predicate object', function() {\n         var searchAny = element(by.model('search.$'));\n         searchAny.clear();\n         searchAny.sendKeys('i');\n         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');\n       });\n       it('should use a equal comparison when comparator is true', function() {\n         var searchName = element(by.model('search.name'));\n         var strict = element(by.model('strict'));\n         searchName.clear();\n         searchName.sendKeys('Julie');\n         strict.click();\n         expectFriendNames(['Julie'], 'friendObj');\n       });\n     </file>\n   </example>\n */\nfunction filterFilter() {\n  return function(array, expression, comparator) {\n    if (!isArray(array)) return array;\n\n    var comparatorType = typeof(comparator),\n        predicates = [];\n\n    predicates.check = function(value) {\n      for (var j = 0; j < predicates.length; j++) {\n        if(!predicates[j](value)) {\n          return false;\n        }\n      }\n      return true;\n    };\n\n    if (comparatorType !== 'function') {\n      if (comparatorType === 'boolean' && comparator) {\n        comparator = function(obj, text) {\n          return angular.equals(obj, text);\n        };\n      } else {\n        comparator = function(obj, text) {\n          if (obj && text && typeof obj === 'object' && typeof text === 'object') {\n            for (var objKey in obj) {\n              if (objKey.charAt(0) !== '$' && hasOwnProperty.call(obj, objKey) &&\n                  comparator(obj[objKey], text[objKey])) {\n                return true;\n              }\n            }\n            return false;\n          }\n          text = (''+text).toLowerCase();\n          return (''+obj).toLowerCase().indexOf(text) > -1;\n        };\n      }\n    }\n\n    var search = function(obj, text){\n      if (typeof text === 'string' && text.charAt(0) === '!') {\n        return !search(obj, text.substr(1));\n      }\n      switch (typeof obj) {\n        case 'boolean':\n        case 'number':\n        case 'string':\n          return comparator(obj, text);\n        case 'object':\n          switch (typeof text) {\n            case 'object':\n              return comparator(obj, text);\n            default:\n              for ( var objKey in obj) {\n                if (objKey.charAt(0) !== '$' && search(obj[objKey], text)) {\n                  return true;\n                }\n              }\n              break;\n          }\n          return false;\n        case 'array':\n          for ( var i = 0; i < obj.length; i++) {\n            if (search(obj[i], text)) {\n              return true;\n            }\n          }\n          return false;\n        default:\n          return false;\n      }\n    };\n    switch (typeof expression) {\n      case 'boolean':\n      case 'number':\n      case 'string':\n        // Set up expression object and fall through\n        expression = {$:expression};\n        // jshint -W086\n      case 'object':\n        // jshint +W086\n        for (var key in expression) {\n          (function(path) {\n            if (typeof expression[path] === 'undefined') return;\n            predicates.push(function(value) {\n              return search(path == '$' ? value : (value && value[path]), expression[path]);\n            });\n          })(key);\n        }\n        break;\n      case 'function':\n        predicates.push(expression);\n        break;\n      default:\n        return array;\n    }\n    var filtered = [];\n    for ( var j = 0; j < array.length; j++) {\n      var value = array[j];\n      if (predicates.check(value)) {\n        filtered.push(value);\n      }\n    }\n    return filtered;\n  };\n}\n\n/**\n * @ngdoc filter\n * @name currency\n * @kind function\n *\n * @description\n * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default\n * symbol for current locale is used.\n *\n * @param {number} amount Input to filter.\n * @param {string=} symbol Currency symbol or identifier to be displayed.\n * @returns {string} Formatted number.\n *\n *\n * @example\n   <example module=\"currencyExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('currencyExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.amount = 1234.56;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"number\" ng-model=\"amount\"> <br>\n         default currency symbol ($): <span id=\"currency-default\">{{amount | currency}}</span><br>\n         custom currency identifier (USD$): <span>{{amount | currency:\"USD$\"}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should init with 1234.56', function() {\n         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');\n         expect(element(by.binding('amount | currency:\"USD$\"')).getText()).toBe('USD$1,234.56');\n       });\n       it('should update', function() {\n         if (browser.params.browser == 'safari') {\n           // Safari does not understand the minus key. See\n           // https://github.com/angular/protractor/issues/481\n           return;\n         }\n         element(by.model('amount')).clear();\n         element(by.model('amount')).sendKeys('-1234');\n         expect(element(by.id('currency-default')).getText()).toBe('($1,234.00)');\n         expect(element(by.binding('amount | currency:\"USD$\"')).getText()).toBe('(USD$1,234.00)');\n       });\n     </file>\n   </example>\n */\ncurrencyFilter.$inject = ['$locale'];\nfunction currencyFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(amount, currencySymbol){\n    if (isUndefined(currencySymbol)) currencySymbol = formats.CURRENCY_SYM;\n    return formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, 2).\n                replace(/\\u00A4/g, currencySymbol);\n  };\n}\n\n/**\n * @ngdoc filter\n * @name number\n * @kind function\n *\n * @description\n * Formats a number as text.\n *\n * If the input is not a number an empty string is returned.\n *\n * @param {number|string} number Number to format.\n * @param {(number|string)=} fractionSize Number of decimal places to round the number to.\n * If this is not provided then the fraction size is computed from the current locale's number\n * formatting pattern. In the case of the default locale, it will be 3.\n * @returns {string} Number rounded to decimalPlaces and places a “,” after each third digit.\n *\n * @example\n   <example module=\"numberFilterExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('numberFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.val = 1234.56789;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         Enter number: <input ng-model='val'><br>\n         Default formatting: <span id='number-default'>{{val | number}}</span><br>\n         No fractions: <span>{{val | number:0}}</span><br>\n         Negative number: <span>{{-val | number:4}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format numbers', function() {\n         expect(element(by.id('number-default')).getText()).toBe('1,234.568');\n         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');\n       });\n\n       it('should update', function() {\n         element(by.model('val')).clear();\n         element(by.model('val')).sendKeys('3374.333');\n         expect(element(by.id('number-default')).getText()).toBe('3,374.333');\n         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');\n      });\n     </file>\n   </example>\n */\n\n\nnumberFilter.$inject = ['$locale'];\nfunction numberFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(number, fractionSize) {\n    return formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,\n      fractionSize);\n  };\n}\n\nvar DECIMAL_SEP = '.';\nfunction formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {\n  if (number == null || !isFinite(number) || isObject(number)) return '';\n\n  var isNegative = number < 0;\n  number = Math.abs(number);\n  var numStr = number + '',\n      formatedText = '',\n      parts = [];\n\n  var hasExponent = false;\n  if (numStr.indexOf('e') !== -1) {\n    var match = numStr.match(/([\\d\\.]+)e(-?)(\\d+)/);\n    if (match && match[2] == '-' && match[3] > fractionSize + 1) {\n      numStr = '0';\n      number = 0;\n    } else {\n      formatedText = numStr;\n      hasExponent = true;\n    }\n  }\n\n  if (!hasExponent) {\n    var fractionLen = (numStr.split(DECIMAL_SEP)[1] || '').length;\n\n    // determine fractionSize if it is not specified\n    if (isUndefined(fractionSize)) {\n      fractionSize = Math.min(Math.max(pattern.minFrac, fractionLen), pattern.maxFrac);\n    }\n\n    // safely round numbers in JS without hitting imprecisions of floating-point arithmetics\n    // inspired by:\n    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round\n    number = +(Math.round(+(number.toString() + 'e' + fractionSize)).toString() + 'e' + -fractionSize);\n\n    if (number === 0) {\n      isNegative = false;\n    }\n\n    var fraction = ('' + number).split(DECIMAL_SEP);\n    var whole = fraction[0];\n    fraction = fraction[1] || '';\n\n    var i, pos = 0,\n        lgroup = pattern.lgSize,\n        group = pattern.gSize;\n\n    if (whole.length >= (lgroup + group)) {\n      pos = whole.length - lgroup;\n      for (i = 0; i < pos; i++) {\n        if ((pos - i)%group === 0 && i !== 0) {\n          formatedText += groupSep;\n        }\n        formatedText += whole.charAt(i);\n      }\n    }\n\n    for (i = pos; i < whole.length; i++) {\n      if ((whole.length - i)%lgroup === 0 && i !== 0) {\n        formatedText += groupSep;\n      }\n      formatedText += whole.charAt(i);\n    }\n\n    // format fraction part.\n    while(fraction.length < fractionSize) {\n      fraction += '0';\n    }\n\n    if (fractionSize && fractionSize !== \"0\") formatedText += decimalSep + fraction.substr(0, fractionSize);\n  } else {\n\n    if (fractionSize > 0 && number > -1 && number < 1) {\n      formatedText = number.toFixed(fractionSize);\n    }\n  }\n\n  parts.push(isNegative ? pattern.negPre : pattern.posPre);\n  parts.push(formatedText);\n  parts.push(isNegative ? pattern.negSuf : pattern.posSuf);\n  return parts.join('');\n}\n\nfunction padNumber(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while(num.length < digits) num = '0' + num;\n  if (trim)\n    num = num.substr(num.length - digits);\n  return neg + num;\n}\n\n\nfunction dateGetter(name, size, offset, trim) {\n  offset = offset || 0;\n  return function(date) {\n    var value = date['get' + name]();\n    if (offset > 0 || value > -offset)\n      value += offset;\n    if (value === 0 && offset == -12 ) value = 12;\n    return padNumber(value, size, trim);\n  };\n}\n\nfunction dateStrGetter(name, shortForm) {\n  return function(date, formats) {\n    var value = date['get' + name]();\n    var get = uppercase(shortForm ? ('SHORT' + name) : name);\n\n    return formats[get][value];\n  };\n}\n\nfunction timeZoneGetter(date) {\n  var zone = -1 * date.getTimezoneOffset();\n  var paddedZone = (zone >= 0) ? \"+\" : \"\";\n\n  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +\n                padNumber(Math.abs(zone % 60), 2);\n\n  return paddedZone;\n}\n\nfunction ampmGetter(date, formats) {\n  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];\n}\n\nvar DATE_FORMATS = {\n  yyyy: dateGetter('FullYear', 4),\n    yy: dateGetter('FullYear', 2, 0, true),\n     y: dateGetter('FullYear', 1),\n  MMMM: dateStrGetter('Month'),\n   MMM: dateStrGetter('Month', true),\n    MM: dateGetter('Month', 2, 1),\n     M: dateGetter('Month', 1, 1),\n    dd: dateGetter('Date', 2),\n     d: dateGetter('Date', 1),\n    HH: dateGetter('Hours', 2),\n     H: dateGetter('Hours', 1),\n    hh: dateGetter('Hours', 2, -12),\n     h: dateGetter('Hours', 1, -12),\n    mm: dateGetter('Minutes', 2),\n     m: dateGetter('Minutes', 1),\n    ss: dateGetter('Seconds', 2),\n     s: dateGetter('Seconds', 1),\n     // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions\n   sss: dateGetter('Milliseconds', 3),\n  EEEE: dateStrGetter('Day'),\n   EEE: dateStrGetter('Day', true),\n     a: ampmGetter,\n     Z: timeZoneGetter\n};\n\nvar DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z))(.*)/,\n    NUMBER_STRING = /^\\-?\\d+$/;\n\n/**\n * @ngdoc filter\n * @name date\n * @kind function\n *\n * @description\n *   Formats `date` to a string based on the requested `format`.\n *\n *   `format` string can be composed of the following elements:\n *\n *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)\n *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)\n *   * `'MMMM'`: Month in year (January-December)\n *   * `'MMM'`: Month in year (Jan-Dec)\n *   * `'MM'`: Month in year, padded (01-12)\n *   * `'M'`: Month in year (1-12)\n *   * `'dd'`: Day in month, padded (01-31)\n *   * `'d'`: Day in month (1-31)\n *   * `'EEEE'`: Day in Week,(Sunday-Saturday)\n *   * `'EEE'`: Day in Week, (Sun-Sat)\n *   * `'HH'`: Hour in day, padded (00-23)\n *   * `'H'`: Hour in day (0-23)\n *   * `'hh'`: Hour in am/pm, padded (01-12)\n *   * `'h'`: Hour in am/pm, (1-12)\n *   * `'mm'`: Minute in hour, padded (00-59)\n *   * `'m'`: Minute in hour (0-59)\n *   * `'ss'`: Second in minute, padded (00-59)\n *   * `'s'`: Second in minute (0-59)\n *   * `'.sss' or ',sss'`: Millisecond in second, padded (000-999)\n *   * `'a'`: am/pm marker\n *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)\n *\n *   `format` string can also be one of the following predefined\n *   {@link guide/i18n localizable formats}:\n *\n *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale\n *     (e.g. Sep 3, 2010 12:05:08 pm)\n *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 pm)\n *   * `'fullDate'`: equivalent to `'EEEE, MMMM d,y'` for en_US  locale\n *     (e.g. Friday, September 3, 2010)\n *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)\n *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)\n *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)\n *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 pm)\n *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 pm)\n *\n *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.\n *   `\"h 'in the morning'\"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence\n *   (e.g. `\"h 'o''clock'\"`).\n *\n * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or\n *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its\n *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is\n *    specified in the string input, the time is considered to be in the local timezone.\n * @param {string=} format Formatting rules (see Description). If not specified,\n *    `mediumDate` is used.\n * @returns {string} Formatted string or the input if input is not recognized as date/millis.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:\n           <span>{{1288323623006 | date:'medium'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:\n          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:\n          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:\"MM/dd/yyyy 'at' h:mma\"}}</span>:\n          <span>{{'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"}}</span><br>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format date', function() {\n         expect(element(by.binding(\"1288323623006 | date:'medium'\")).getText()).\n            toMatch(/Oct 2\\d, 2010 \\d{1,2}:\\d{2}:\\d{2} (AM|PM)/);\n         expect(element(by.binding(\"1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'\")).getText()).\n            toMatch(/2010\\-10\\-2\\d \\d{2}:\\d{2}:\\d{2} (\\-|\\+)?\\d{4}/);\n         expect(element(by.binding(\"'1288323623006' | date:'MM/dd/yyyy @ h:mma'\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 @ \\d{1,2}:\\d{2}(AM|PM)/);\n         expect(element(by.binding(\"'1288323623006' | date:\\\"MM/dd/yyyy 'at' h:mma\\\"\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 at \\d{1,2}:\\d{2}(AM|PM)/);\n       });\n     </file>\n   </example>\n */\ndateFilter.$inject = ['$locale'];\nfunction dateFilter($locale) {\n\n\n  var R_ISO8601_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n                     // 1        2       3         4          5          6          7          8  9     10      11\n  function jsonStringToDate(string) {\n    var match;\n    if (match = string.match(R_ISO8601_STR)) {\n      var date = new Date(0),\n          tzHour = 0,\n          tzMin  = 0,\n          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,\n          timeSetter = match[8] ? date.setUTCHours : date.setHours;\n\n      if (match[9]) {\n        tzHour = int(match[9] + match[10]);\n        tzMin = int(match[9] + match[11]);\n      }\n      dateSetter.call(date, int(match[1]), int(match[2]) - 1, int(match[3]));\n      var h = int(match[4]||0) - tzHour;\n      var m = int(match[5]||0) - tzMin;\n      var s = int(match[6]||0);\n      var ms = Math.round(parseFloat('0.' + (match[7]||0)) * 1000);\n      timeSetter.call(date, h, m, s, ms);\n      return date;\n    }\n    return string;\n  }\n\n\n  return function(date, format) {\n    var text = '',\n        parts = [],\n        fn, match;\n\n    format = format || 'mediumDate';\n    format = $locale.DATETIME_FORMATS[format] || format;\n    if (isString(date)) {\n      date = NUMBER_STRING.test(date) ? int(date) : jsonStringToDate(date);\n    }\n\n    if (isNumber(date)) {\n      date = new Date(date);\n    }\n\n    if (!isDate(date)) {\n      return date;\n    }\n\n    while(format) {\n      match = DATE_FORMATS_SPLIT.exec(format);\n      if (match) {\n        parts = concat(parts, match, 1);\n        format = parts.pop();\n      } else {\n        parts.push(format);\n        format = null;\n      }\n    }\n\n    forEach(parts, function(value){\n      fn = DATE_FORMATS[value];\n      text += fn ? fn(date, $locale.DATETIME_FORMATS)\n                 : value.replace(/(^'|'$)/g, '').replace(/''/g, \"'\");\n    });\n\n    return text;\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name json\n * @kind function\n *\n * @description\n *   Allows you to convert a JavaScript object into JSON string.\n *\n *   This filter is mostly useful for debugging. When using the double curly {{value}} notation\n *   the binding is automatically converted to JSON.\n *\n * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.\n * @returns {string} JSON string.\n *\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <pre>{{ {'name':'value'} | json }}</pre>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should jsonify filtered objects', function() {\n         expect(element(by.binding(\"{'name':'value'}\")).getText()).toMatch(/\\{\\n  \"name\": ?\"value\"\\n}/);\n       });\n     </file>\n   </example>\n *\n */\nfunction jsonFilter() {\n  return function(object) {\n    return toJson(object, true);\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name lowercase\n * @kind function\n * @description\n * Converts string to lowercase.\n * @see angular.lowercase\n */\nvar lowercaseFilter = valueFn(lowercase);\n\n\n/**\n * @ngdoc filter\n * @name uppercase\n * @kind function\n * @description\n * Converts string to uppercase.\n * @see angular.uppercase\n */\nvar uppercaseFilter = valueFn(uppercase);\n\n/**\n * @ngdoc filter\n * @name limitTo\n * @kind function\n *\n * @description\n * Creates a new array or string containing only a specified number of elements. The elements\n * are taken from either the beginning or the end of the source array or string, as specified by\n * the value and sign (positive or negative) of `limit`.\n *\n * @param {Array|string} input Source array or string to be limited.\n * @param {string|number} limit The length of the returned array or string. If the `limit` number\n *     is positive, `limit` number of items from the beginning of the source array/string are copied.\n *     If the number is negative, `limit` number  of items from the end of the source array/string\n *     are copied. The `limit` will be trimmed if it exceeds `array.length`\n * @returns {Array|string} A new sub-array or substring of length `limit` or less if input array\n *     had less than `limit` elements.\n *\n * @example\n   <example module=\"limitToExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('limitToExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.numbers = [1,2,3,4,5,6,7,8,9];\n             $scope.letters = \"abcdefghi\";\n             $scope.numLimit = 3;\n             $scope.letterLimit = 3;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         Limit {{numbers}} to: <input type=\"number\" step=\"1\" ng-model=\"numLimit\">\n         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>\n         Limit {{letters}} to: <input type=\"number\" step=\"1\" ng-model=\"letterLimit\">\n         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var numLimitInput = element(by.model('numLimit'));\n       var letterLimitInput = element(by.model('letterLimit'));\n       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));\n       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));\n\n       it('should limit the number array to first three items', function() {\n         expect(numLimitInput.getAttribute('value')).toBe('3');\n         expect(letterLimitInput.getAttribute('value')).toBe('3');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abc');\n       });\n\n       // There is a bug in safari and protractor that doesn't like the minus key\n       // it('should update the output when -3 is entered', function() {\n       //   numLimitInput.clear();\n       //   numLimitInput.sendKeys('-3');\n       //   letterLimitInput.clear();\n       //   letterLimitInput.sendKeys('-3');\n       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');\n       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');\n       // });\n\n       it('should not exceed the maximum size of input array', function() {\n         numLimitInput.clear();\n         numLimitInput.sendKeys('100');\n         letterLimitInput.clear();\n         letterLimitInput.sendKeys('100');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');\n       });\n     </file>\n   </example>\n */\nfunction limitToFilter(){\n  return function(input, limit) {\n    if (!isArray(input) && !isString(input)) return input;\n\n    if (Math.abs(Number(limit)) === Infinity) {\n      limit = Number(limit);\n    } else {\n      limit = int(limit);\n    }\n\n    //NaN check on limit\n    if (limit) {\n      return limit > 0 ? input.slice(0, limit) : input.slice(limit);\n    } else {\n      return isString(input) ? \"\" : [];\n    }\n  };\n}\n\n/**\n * @ngdoc filter\n * @name orderBy\n * @kind function\n *\n * @description\n * Orders a specified `array` by the `expression` predicate. It is ordered alphabetically\n * for strings and numerically for numbers. Note: if you notice numbers are not being sorted\n * correctly, make sure they are actually being saved as numbers and not strings.\n *\n * @param {Array} array The array to sort.\n * @param {function(*)|string|Array.<(function(*)|string)>=} expression A predicate to be\n *    used by the comparator to determine the order of elements.\n *\n *    Can be one of:\n *\n *    - `function`: Getter function. The result of this function will be sorted using the\n *      `<`, `=`, `>` operator.\n *    - `string`: An Angular expression. The result of this expression is used to compare elements\n *      (for example `name` to sort by a property called `name` or `name.substr(0, 3)` to sort by\n *      3 first characters of a property called `name`). The result of a constant expression\n *      is interpreted as a property name to be used in comparisons (for example `\"special name\"`\n *      to sort object by the value of their `special name` property). An expression can be\n *      optionally prefixed with `+` or `-` to control ascending or descending sort order\n *      (for example, `+name` or `-name`). If no property is provided, (e.g. `'+'`) then the array\n *      element itself is used to compare where sorting.\n *    - `Array`: An array of function or string predicates. The first predicate in the array\n *      is used for sorting, but when two items are equivalent, the next predicate is used.\n *\n *    If the predicate is missing or empty then it defaults to `'+'`.\n *\n * @param {boolean=} reverse Reverse the order of the array.\n * @returns {Array} Sorted copy of the source array.\n *\n * @example\n   <example module=\"orderByExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('orderByExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.friends =\n                 [{name:'John', phone:'555-1212', age:10},\n                  {name:'Mary', phone:'555-9876', age:19},\n                  {name:'Mike', phone:'555-4321', age:21},\n                  {name:'Adam', phone:'555-5678', age:35},\n                  {name:'Julie', phone:'555-8765', age:29}];\n             $scope.predicate = '-age';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <pre>Sorting predicate = {{predicate}}; reverse = {{reverse}}</pre>\n         <hr/>\n         [ <a href=\"\" ng-click=\"predicate=''\">unsorted</a> ]\n         <table class=\"friend\">\n           <tr>\n             <th><a href=\"\" ng-click=\"predicate = 'name'; reverse=false\">Name</a>\n                 (<a href=\"\" ng-click=\"predicate = '-name'; reverse=false\">^</a>)</th>\n             <th><a href=\"\" ng-click=\"predicate = 'phone'; reverse=!reverse\">Phone Number</a></th>\n             <th><a href=\"\" ng-click=\"predicate = 'age'; reverse=!reverse\">Age</a></th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:predicate:reverse\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n   </example>\n *\n * It's also possible to call the orderBy filter manually, by injecting `$filter`, retrieving the\n * filter routine with `$filter('orderBy')`, and calling the returned filter routine with the\n * desired parameters.\n *\n * Example:\n *\n * @example\n  <example module=\"orderByExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <table class=\"friend\">\n          <tr>\n            <th><a href=\"\" ng-click=\"reverse=false;order('name', false)\">Name</a>\n              (<a href=\"\" ng-click=\"order('-name',false)\">^</a>)</th>\n            <th><a href=\"\" ng-click=\"reverse=!reverse;order('phone', reverse)\">Phone Number</a></th>\n            <th><a href=\"\" ng-click=\"reverse=!reverse;order('age',reverse)\">Age</a></th>\n          </tr>\n          <tr ng-repeat=\"friend in friends\">\n            <td>{{friend.name}}</td>\n            <td>{{friend.phone}}</td>\n            <td>{{friend.age}}</td>\n          </tr>\n        </table>\n      </div>\n    </file>\n\n    <file name=\"script.js\">\n      angular.module('orderByExample', [])\n        .controller('ExampleController', ['$scope', '$filter', function($scope, $filter) {\n          var orderBy = $filter('orderBy');\n          $scope.friends = [\n            { name: 'John',    phone: '555-1212',    age: 10 },\n            { name: 'Mary',    phone: '555-9876',    age: 19 },\n            { name: 'Mike',    phone: '555-4321',    age: 21 },\n            { name: 'Adam',    phone: '555-5678',    age: 35 },\n            { name: 'Julie',   phone: '555-8765',    age: 29 }\n          ];\n          $scope.order = function(predicate, reverse) {\n            $scope.friends = orderBy($scope.friends, predicate, reverse);\n          };\n          $scope.order('-age',false);\n        }]);\n    </file>\n</example>\n */\norderByFilter.$inject = ['$parse'];\nfunction orderByFilter($parse){\n  return function(array, sortPredicate, reverseOrder) {\n    if (!(isArrayLike(array))) return array;\n    sortPredicate = isArray(sortPredicate) ? sortPredicate: [sortPredicate];\n    if (sortPredicate.length === 0) { sortPredicate = ['+']; }\n    sortPredicate = map(sortPredicate, function(predicate){\n      var descending = false, get = predicate || identity;\n      if (isString(predicate)) {\n        if ((predicate.charAt(0) == '+' || predicate.charAt(0) == '-')) {\n          descending = predicate.charAt(0) == '-';\n          predicate = predicate.substring(1);\n        }\n        if ( predicate === '' ) {\n          // Effectively no predicate was passed so we compare identity\n          return reverseComparator(function(a,b) {\n            return compare(a, b);\n          }, descending);\n        }\n        get = $parse(predicate);\n        if (get.constant) {\n          var key = get();\n          return reverseComparator(function(a,b) {\n            return compare(a[key], b[key]);\n          }, descending);\n        }\n      }\n      return reverseComparator(function(a,b){\n        return compare(get(a),get(b));\n      }, descending);\n    });\n    return slice.call(array).sort(reverseComparator(comparator, reverseOrder));\n\n    function comparator(o1, o2){\n      for ( var i = 0; i < sortPredicate.length; i++) {\n        var comp = sortPredicate[i](o1, o2);\n        if (comp !== 0) return comp;\n      }\n      return 0;\n    }\n    function reverseComparator(comp, descending) {\n      return toBoolean(descending)\n          ? function(a,b){return comp(b,a);}\n          : comp;\n    }\n    function compare(v1, v2){\n      var t1 = typeof v1;\n      var t2 = typeof v2;\n      if (t1 == t2) {\n        if (isDate(v1) && isDate(v2)) {\n          v1 = v1.valueOf();\n          v2 = v2.valueOf();\n        }\n        if (t1 == \"string\") {\n           v1 = v1.toLowerCase();\n           v2 = v2.toLowerCase();\n        }\n        if (v1 === v2) return 0;\n        return v1 < v2 ? -1 : 1;\n      } else {\n        return t1 < t2 ? -1 : 1;\n      }\n    }\n  };\n}\n\nfunction ngDirective(directive) {\n  if (isFunction(directive)) {\n    directive = {\n      link: directive\n    };\n  }\n  directive.restrict = directive.restrict || 'AC';\n  return valueFn(directive);\n}\n\n/**\n * @ngdoc directive\n * @name a\n * @restrict E\n *\n * @description\n * Modifies the default behavior of the html A tag so that the default action is prevented when\n * the href attribute is empty.\n *\n * This change permits the easy creation of action links with the `ngClick` directive\n * without changing the location or causing page reloads, e.g.:\n * `<a href=\"\" ng-click=\"list.addItem()\">Add Item</a>`\n */\nvar htmlAnchorDirective = valueFn({\n  restrict: 'E',\n  compile: function(element, attr) {\n\n    if (msie <= 8) {\n\n      // turn <a href ng-click=\"..\">link</a> into a stylable link in IE\n      // but only if it doesn't have name attribute, in which case it's an anchor\n      if (!attr.href && !attr.name) {\n        attr.$set('href', '');\n      }\n\n      // add a comment node to anchors to workaround IE bug that causes element content to be reset\n      // to new attribute content if attribute is updated with value containing @ and element also\n      // contains value with @\n      // see issue #1949\n      element.append(document.createComment('IE fix'));\n    }\n\n    if (!attr.href && !attr.xlinkHref && !attr.name) {\n      return function(scope, element) {\n        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?\n                   'xlink:href' : 'href';\n        element.on('click', function(event){\n          // if we have no href url, then don't navigate anywhere.\n          if (!element.attr(href)) {\n            event.preventDefault();\n          }\n        });\n      };\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngHref\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in an href attribute will\n * make the link go to the wrong URL if the user clicks it before\n * Angular has a chance to replace the `{{hash}}` markup with its\n * value. Until Angular replaces the markup the link will be broken\n * and will most likely return a 404 error. The `ngHref` directive\n * solves this problem.\n *\n * The wrong way to write it:\n * ```html\n * <a href=\"http://www.gravatar.com/avatar/{{hash}}\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <a ng-href=\"http://www.gravatar.com/avatar/{{hash}}\"/>\n * ```\n *\n * @element A\n * @param {template} ngHref any string which can contain `{{}}` markup.\n *\n * @example\n * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes\n * in links and their different behaviors:\n    <example>\n      <file name=\"index.html\">\n        <input ng-model=\"value\" /><br />\n        <a id=\"link-1\" href ng-click=\"value = 1\">link 1</a> (link, don't reload)<br />\n        <a id=\"link-2\" href=\"\" ng-click=\"value = 2\">link 2</a> (link, don't reload)<br />\n        <a id=\"link-3\" ng-href=\"/{{'123'}}\">link 3</a> (link, reload!)<br />\n        <a id=\"link-4\" href=\"\" name=\"xx\" ng-click=\"value = 4\">anchor</a> (link, don't reload)<br />\n        <a id=\"link-5\" name=\"xxx\" ng-click=\"value = 5\">anchor</a> (no link)<br />\n        <a id=\"link-6\" ng-href=\"{{value}}\">link</a> (link, change location)\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should execute ng-click but not reload when href without value', function() {\n          element(by.id('link-1')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('1');\n          expect(element(by.id('link-1')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when href empty string', function() {\n          element(by.id('link-2')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('2');\n          expect(element(by.id('link-2')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click and change url when ng-href specified', function() {\n          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\\/123$/);\n\n          element(by.id('link-3')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/123$/);\n            });\n          }, 5000, 'page should navigate to /123');\n        });\n\n        xit('should execute ng-click but not reload when href empty string and name specified', function() {\n          element(by.id('link-4')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('4');\n          expect(element(by.id('link-4')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when no href but name specified', function() {\n          element(by.id('link-5')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('5');\n          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);\n        });\n\n        it('should only change url when only ng-href', function() {\n          element(by.model('value')).clear();\n          element(by.model('value')).sendKeys('6');\n          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\\/6$/);\n\n          element(by.id('link-6')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/6$/);\n            });\n          }, 5000, 'page should navigate to /6');\n        });\n      </file>\n    </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngSrc\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `src` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrc` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img src=\"http://www.gravatar.com/avatar/{{hash}}\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-src=\"http://www.gravatar.com/avatar/{{hash}}\"/>\n * ```\n *\n * @element IMG\n * @param {template} ngSrc any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngSrcset\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrcset` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\"/>\n * ```\n *\n * @element IMG\n * @param {template} ngSrcset any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngDisabled\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * We shouldn't do this, because it will make the button enabled on Chrome/Firefox but not on IE8 and older IEs:\n * ```html\n * <div ng-init=\"scope = { isDisabled: false }\">\n *  <button disabled=\"{{scope.isDisabled}}\">Disabled</button>\n * </div>\n * ```\n *\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as disabled. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngDisabled` directive solves this problem for the `disabled` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        Click me to toggle: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n        <button ng-model=\"button\" ng-disabled=\"checked\">Button</button>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle button', function() {\n          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,\n *     then special attribute \"disabled\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngChecked\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as checked. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngChecked` directive solves this problem for the `checked` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n * @example\n    <example>\n      <file name=\"index.html\">\n        Check me to check both: <input type=\"checkbox\" ng-model=\"master\"><br/>\n        <input id=\"checkSlave\" type=\"checkbox\" ng-checked=\"master\">\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should check both checkBoxes', function() {\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy();\n          element(by.model('master')).click();\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,\n *     then special attribute \"checked\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngReadonly\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as readonly. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngReadonly` directive solves this problem for the `readonly` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n * @example\n    <example>\n      <file name=\"index.html\">\n        Check me to make text readonly: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n        <input type=\"text\" ng-readonly=\"checked\" value=\"I'm Angular\"/>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle readonly attr', function() {\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,\n *     then special attribute \"readonly\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSelected\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as selected. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngSelected` directive solves this problem for the `selected` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        Check me to select: <input type=\"checkbox\" ng-model=\"selected\"><br/>\n        <select>\n          <option>Hello!</option>\n          <option id=\"greet\" ng-selected=\"selected\">Greetings!</option>\n        </select>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should select Greetings!', function() {\n          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();\n          element(by.model('selected')).click();\n          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element OPTION\n * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,\n *     then special attribute \"selected\" will be set on the element\n */\n\n/**\n * @ngdoc directive\n * @name ngOpen\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as open. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngOpen` directive solves this problem for the `open` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n * @example\n     <example>\n       <file name=\"index.html\">\n         Check me check multiple: <input type=\"checkbox\" ng-model=\"open\"><br/>\n         <details id=\"details\" ng-open=\"open\">\n            <summary>Show/Hide me</summary>\n         </details>\n       </file>\n       <file name=\"protractor.js\" type=\"protractor\">\n         it('should toggle open', function() {\n           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();\n           element(by.model('open')).click();\n           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();\n         });\n       </file>\n     </example>\n *\n * @element DETAILS\n * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,\n *     then special attribute \"open\" will be set on the element\n */\n\nvar ngAttributeAliasDirectives = {};\n\n\n// boolean attrs are evaluated\nforEach(BOOLEAN_ATTR, function(propName, attrName) {\n  // binding to multiple is not supported\n  if (propName == \"multiple\") return;\n\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      priority: 100,\n      link: function(scope, element, attr) {\n        scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {\n          attr.$set(attrName, !!value);\n        });\n      }\n    };\n  };\n});\n\n\n// ng-src, ng-srcset, ng-href are interpolated\nforEach(['src', 'srcset', 'href'], function(attrName) {\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      priority: 99, // it needs to run after the attributes are interpolated\n      link: function(scope, element, attr) {\n        var propName = attrName,\n            name = attrName;\n\n        if (attrName === 'href' &&\n            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {\n          name = 'xlinkHref';\n          attr.$attr[name] = 'xlink:href';\n          propName = null;\n        }\n\n        attr.$observe(normalized, function(value) {\n          if (!value) {\n            if (attrName === 'href') {\n              attr.$set(name, null);\n            }\n            return;\n          }\n\n          attr.$set(name, value);\n\n          // on IE, if \"ng:src\" directive declaration is used and \"src\" attribute doesn't exist\n          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need\n          // to set the property as well to achieve the desired effect.\n          // we use attr[attrName] value since $set can sanitize the url.\n          if (msie && propName) element.prop(propName, attr[name]);\n        });\n      }\n    };\n  };\n});\n\n/* global -nullFormCtrl */\nvar nullFormCtrl = {\n  $addControl: noop,\n  $removeControl: noop,\n  $setValidity: noop,\n  $setDirty: noop,\n  $setPristine: noop\n};\n\n/**\n * @ngdoc type\n * @name form.FormController\n *\n * @property {boolean} $pristine True if user has not interacted with the form yet.\n * @property {boolean} $dirty True if user has already interacted with the form.\n * @property {boolean} $valid True if all of the containing forms and controls are valid.\n * @property {boolean} $invalid True if at least one containing control or form is invalid.\n *\n * @property {Object} $error Is an object hash, containing references to all invalid controls or\n *  forms, where:\n *\n *  - keys are validation tokens (error names),\n *  - values are arrays of controls or forms that are invalid for given error name.\n *\n *\n *  Built-in validation tokens:\n *\n *  - `email`\n *  - `max`\n *  - `maxlength`\n *  - `min`\n *  - `minlength`\n *  - `number`\n *  - `pattern`\n *  - `required`\n *  - `url`\n *\n * @description\n * `FormController` keeps track of all its controls and nested forms as well as the state of them,\n * such as being valid/invalid or dirty/pristine.\n *\n * Each {@link ng.directive:form form} directive creates an instance\n * of `FormController`.\n *\n */\n//asks for $scope to fool the BC controller module\nFormController.$inject = ['$element', '$attrs', '$scope', '$animate'];\nfunction FormController(element, attrs, $scope, $animate) {\n  var form = this,\n      parentForm = element.parent().controller('form') || nullFormCtrl,\n      invalidCount = 0, // used to easily determine if we are valid\n      errors = form.$error = {},\n      controls = [];\n\n  // init state\n  form.$name = attrs.name || attrs.ngForm;\n  form.$dirty = false;\n  form.$pristine = true;\n  form.$valid = true;\n  form.$invalid = false;\n\n  parentForm.$addControl(form);\n\n  // Setup initial state of the control\n  element.addClass(PRISTINE_CLASS);\n  toggleValidCss(true);\n\n  // convenience method for easy toggling of classes\n  function toggleValidCss(isValid, validationErrorKey) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n    $animate.setClass(element,\n      (isValid ? VALID_CLASS : INVALID_CLASS) + validationErrorKey,\n      (isValid ? INVALID_CLASS : VALID_CLASS) + validationErrorKey);\n  }\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$addControl\n   *\n   * @description\n   * Register a control with the form.\n   *\n   * Input elements using ngModelController do this automatically when they are linked.\n   */\n  form.$addControl = function(control) {\n    // Breaking change - before, inputs whose name was \"hasOwnProperty\" were quietly ignored\n    // and not added to the scope.  Now we throw an error.\n    assertNotHasOwnProperty(control.$name, 'input');\n    controls.push(control);\n\n    if (control.$name) {\n      form[control.$name] = control;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$removeControl\n   *\n   * @description\n   * Deregister a control from the form.\n   *\n   * Input elements using ngModelController do this automatically when they are destroyed.\n   */\n  form.$removeControl = function(control) {\n    if (control.$name && form[control.$name] === control) {\n      delete form[control.$name];\n    }\n    forEach(errors, function(queue, validationToken) {\n      form.$setValidity(validationToken, true, control);\n    });\n\n    arrayRemove(controls, control);\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setValidity\n   *\n   * @description\n   * Sets the validity of a form control.\n   *\n   * This method will also propagate to parent forms.\n   */\n  form.$setValidity = function(validationToken, isValid, control) {\n    var queue = errors[validationToken];\n\n    if (isValid) {\n      if (queue) {\n        arrayRemove(queue, control);\n        if (!queue.length) {\n          invalidCount--;\n          if (!invalidCount) {\n            toggleValidCss(isValid);\n            form.$valid = true;\n            form.$invalid = false;\n          }\n          errors[validationToken] = false;\n          toggleValidCss(true, validationToken);\n          parentForm.$setValidity(validationToken, true, form);\n        }\n      }\n\n    } else {\n      if (!invalidCount) {\n        toggleValidCss(isValid);\n      }\n      if (queue) {\n        if (includes(queue, control)) return;\n      } else {\n        errors[validationToken] = queue = [];\n        invalidCount++;\n        toggleValidCss(false, validationToken);\n        parentForm.$setValidity(validationToken, false, form);\n      }\n      queue.push(control);\n\n      form.$valid = false;\n      form.$invalid = true;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setDirty\n   *\n   * @description\n   * Sets the form to a dirty state.\n   *\n   * This method can be called to add the 'ng-dirty' class and set the form to a dirty\n   * state (ng-dirty class). This method will also propagate to parent forms.\n   */\n  form.$setDirty = function() {\n    $animate.removeClass(element, PRISTINE_CLASS);\n    $animate.addClass(element, DIRTY_CLASS);\n    form.$dirty = true;\n    form.$pristine = false;\n    parentForm.$setDirty();\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setPristine\n   *\n   * @description\n   * Sets the form to its pristine state.\n   *\n   * This method can be called to remove the 'ng-dirty' class and set the form to its pristine\n   * state (ng-pristine class). This method will also propagate to all the controls contained\n   * in this form.\n   *\n   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after\n   * saving or resetting it.\n   */\n  form.$setPristine = function () {\n    $animate.removeClass(element, DIRTY_CLASS);\n    $animate.addClass(element, PRISTINE_CLASS);\n    form.$dirty = false;\n    form.$pristine = true;\n    forEach(controls, function(control) {\n      control.$setPristine();\n    });\n  };\n}\n\n\n/**\n * @ngdoc directive\n * @name ngForm\n * @restrict EAC\n *\n * @description\n * Nestable alias of {@link ng.directive:form `form`} directive. HTML\n * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a\n * sub-group of controls needs to be determined.\n *\n * Note: the purpose of `ngForm` is to group controls,\n * but not to be a replacement for the `<form>` tag with all of its capabilities\n * (e.g. posting to the server, ...).\n *\n * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n *\n */\n\n /**\n * @ngdoc directive\n * @name form\n * @restrict E\n *\n * @description\n * Directive that instantiates\n * {@link form.FormController FormController}.\n *\n * If the `name` attribute is specified, the form controller is published onto the current scope under\n * this name.\n *\n * # Alias: {@link ng.directive:ngForm `ngForm`}\n *\n * In Angular forms can be nested. This means that the outer form is valid when all of the child\n * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so\n * Angular provides the {@link ng.directive:ngForm `ngForm`} directive which behaves identically to\n * `<form>` but can be nested.  This allows you to have nested forms, which is very useful when\n * using Angular validation directives in forms that are dynamically generated using the\n * {@link ng.directive:ngRepeat `ngRepeat`} directive. Since you cannot dynamically generate the `name`\n * attribute of input elements using interpolation, you have to wrap each set of repeated inputs in an\n * `ngForm` directive and nest these in an outer `form` element.\n *\n *\n * # CSS classes\n *  - `ng-valid` is set if the form is valid.\n *  - `ng-invalid` is set if the form is invalid.\n *  - `ng-pristine` is set if the form is pristine.\n *  - `ng-dirty` is set if the form is dirty.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n *\n * # Submitting a form and preventing the default action\n *\n * Since the role of forms in client-side Angular applications is different than in classical\n * roundtrip apps, it is desirable for the browser not to translate the form submission into a full\n * page reload that sends the data to the server. Instead some javascript logic should be triggered\n * to handle the form submission in an application-specific way.\n *\n * For this reason, Angular prevents the default action (form submission to the server) unless the\n * `<form>` element has an `action` attribute specified.\n *\n * You can use one of the following two ways to specify what javascript method should be called when\n * a form is submitted:\n *\n * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element\n * - {@link ng.directive:ngClick ngClick} directive on the first\n  *  button or input field of type submit (input[type=submit])\n *\n * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}\n * or {@link ng.directive:ngClick ngClick} directives.\n * This is because of the following form submission rules in the HTML specification:\n *\n * - If a form has only one input field then hitting enter in this field triggers form submit\n * (`ngSubmit`)\n * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter\n * doesn't trigger submit\n * - if a form has one or more input fields and one or more buttons or input[type=submit] then\n * hitting enter in any of the input fields will trigger the click handler on the *first* button or\n * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)\n *\n *\n * ## Animation Hooks\n *\n * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.\n * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any\n * other validations that are performed within the form. Animations in ngForm are similar to how\n * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well\n * as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style a form element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-form {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-form.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n    <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"formExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('formExample', [])\n           .controller('FormController', ['$scope', function($scope) {\n             $scope.userType = 'guest';\n           }]);\n       </script>\n       <style>\n        .my-form {\n          -webkit-transition:all linear 0.5s;\n          transition:all linear 0.5s;\n          background: transparent;\n        }\n        .my-form.ng-invalid {\n          background: red;\n        }\n       </style>\n       <form name=\"myForm\" ng-controller=\"FormController\" class=\"my-form\">\n         userType: <input name=\"input\" ng-model=\"userType\" required>\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">Required!</span><br>\n         <tt>userType = {{userType}}</tt><br>\n         <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br>\n         <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should initialize to model', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n\n          expect(userType.getText()).toContain('guest');\n          expect(valid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var userInput = element(by.model('userType'));\n\n          userInput.clear();\n          userInput.sendKeys('');\n\n          expect(userType.getText()).toEqual('userType =');\n          expect(valid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n *\n * @param {string=} name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n */\nvar formDirectiveFactory = function(isNgForm) {\n  return ['$timeout', function($timeout) {\n    var formDirective = {\n      name: 'form',\n      restrict: isNgForm ? 'EAC' : 'E',\n      controller: FormController,\n      compile: function() {\n        return {\n          pre: function(scope, formElement, attr, controller) {\n            if (!attr.action) {\n              // we can't use jq events because if a form is destroyed during submission the default\n              // action is not prevented. see #1238\n              //\n              // IE 9 is not affected because it doesn't fire a submit event and try to do a full\n              // page reload if the form was destroyed by submission of the form via a click handler\n              // on a button in the form. Looks like an IE9 specific bug.\n              var preventDefaultListener = function(event) {\n                event.preventDefault\n                  ? event.preventDefault()\n                  : event.returnValue = false; // IE\n              };\n\n              addEventListenerFn(formElement[0], 'submit', preventDefaultListener);\n\n              // unregister the preventDefault listener so that we don't not leak memory but in a\n              // way that will achieve the prevention of the default action.\n              formElement.on('$destroy', function() {\n                $timeout(function() {\n                  removeEventListenerFn(formElement[0], 'submit', preventDefaultListener);\n                }, 0, false);\n              });\n            }\n\n            var parentFormCtrl = formElement.parent().controller('form'),\n                alias = attr.name || attr.ngForm;\n\n            if (alias) {\n              setter(scope, alias, controller, alias);\n            }\n            if (parentFormCtrl) {\n              formElement.on('$destroy', function() {\n                parentFormCtrl.$removeControl(controller);\n                if (alias) {\n                  setter(scope, alias, undefined, alias);\n                }\n                extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards\n              });\n            }\n          }\n        };\n      }\n    };\n\n    return formDirective;\n  }];\n};\n\nvar formDirective = formDirectiveFactory();\nvar ngFormDirective = formDirectiveFactory(true);\n\n/* global VALID_CLASS: true,\n    INVALID_CLASS: true,\n    PRISTINE_CLASS: true,\n    DIRTY_CLASS: true\n*/\n\nvar URL_REGEXP = /^(ftp|http|https):\\/\\/(\\w+:{0,1}\\w*@)?(\\S+)(:[0-9]+)?(\\/|\\/([\\w#!:.?+=&%@!\\-\\/]))?$/;\nvar EMAIL_REGEXP = /^[a-z0-9!#$%&'*+\\/=?^_`{|}~.-]+@[a-z0-9]([a-z0-9-]*[a-z0-9])?(\\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$/i;\nvar NUMBER_REGEXP = /^\\s*(\\-|\\+)?(\\d+|(\\d*(\\.\\d*)))\\s*$/;\n\nvar inputType = {\n\n  /**\n   * @ngdoc input\n   * @name input[text]\n   *\n   * @description\n   * Standard HTML text input with angular data binding, inherited by most of the `input` elements.\n   *\n   * *NOTE* Not every feature offered is available for all input types.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Adds `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n   *    patterns defined as scope expressions.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n   *    This parameter is ignored for input[type=password] controls, which will never trim the\n   *    input.\n   *\n   * @example\n      <example name=\"text-input-directive\" module=\"textInputExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('textInputExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.text = 'guest';\n               $scope.word = /^\\s*\\w*\\s*$/;\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           Single word: <input type=\"text\" name=\"input\" ng-model=\"text\"\n                               ng-pattern=\"word\" required ng-trim=\"false\">\n           <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n             Required!</span>\n           <span class=\"error\" ng-show=\"myForm.input.$error.pattern\">\n             Single word only!</span>\n\n           <tt>text = {{text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('guest');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if multi word', function() {\n            input.clear();\n            input.sendKeys('hello world');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'text': textInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[number]\n   *\n   * @description\n   * Text input with number validation and transformation. Sets the `number` validation\n   * error if not a valid number.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n   *    patterns defined as scope expressions.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"number-input-directive\" module=\"numberExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('numberExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.value = 12;\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           Number: <input type=\"number\" name=\"input\" ng-model=\"value\"\n                          min=\"0\" max=\"99\" required>\n           <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n             Required!</span>\n           <span class=\"error\" ng-show=\"myForm.input.$error.number\">\n             Not valid number!</span>\n           <tt>value = {{value}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var value = element(by.binding('value'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('value'));\n\n          it('should initialize to model', function() {\n            expect(value.getText()).toContain('12');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if over max', function() {\n            input.clear();\n            input.sendKeys('123');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'number': numberInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[url]\n   *\n   * @description\n   * Text input with URL validation. Sets the `url` validation error key if the content is not a\n   * valid URL.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n   *    patterns defined as scope expressions.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"url-input-directive\" module=\"urlExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('urlExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.text = 'http://google.com';\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           URL: <input type=\"url\" name=\"input\" ng-model=\"text\" required>\n           <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n             Required!</span>\n           <span class=\"error\" ng-show=\"myForm.input.$error.url\">\n             Not valid url!</span>\n           <tt>text = {{text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('http://google.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not url', function() {\n            input.clear();\n            input.sendKeys('box');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'url': urlInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[email]\n   *\n   * @description\n   * Text input with email validation. Sets the `email` validation error key if not a valid email\n   * address.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n   *    patterns defined as scope expressions.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"email-input-directive\" module=\"emailExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('emailExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.text = 'me@example.com';\n             }]);\n         </script>\n           <form name=\"myForm\" ng-controller=\"ExampleController\">\n             Email: <input type=\"email\" name=\"input\" ng-model=\"text\" required>\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.email\">\n               Not valid email!</span>\n             <tt>text = {{text}}</tt><br/>\n             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>\n           </form>\n         </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('me@example.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not email', function() {\n            input.clear();\n            input.sendKeys('xxx');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'email': emailInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[radio]\n   *\n   * @description\n   * HTML radio button.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string} value The value to which the expression should be set when selected.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {string} ngValue Angular expression which sets the value to which the expression should\n   *    be set when selected.\n   *\n   * @example\n      <example name=\"radio-input-directive\" module=\"radioExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('radioExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.color = 'blue';\n               $scope.specialValue = {\n                 \"id\": \"12345\",\n                 \"value\": \"green\"\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <input type=\"radio\" ng-model=\"color\" value=\"red\">  Red <br/>\n           <input type=\"radio\" ng-model=\"color\" ng-value=\"specialValue\"> Green <br/>\n           <input type=\"radio\" ng-model=\"color\" value=\"blue\"> Blue <br/>\n           <tt>color = {{color | json}}</tt><br/>\n          </form>\n          Note that `ng-value=\"specialValue\"` sets radio item's value to be the value of `$scope.specialValue`.\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var color = element(by.binding('color'));\n\n            expect(color.getText()).toContain('blue');\n\n            element.all(by.model('color')).get(0).click();\n\n            expect(color.getText()).toContain('red');\n          });\n        </file>\n      </example>\n   */\n  'radio': radioInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[checkbox]\n   *\n   * @description\n   * HTML checkbox.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngTrueValue The value to which the expression should be set when selected.\n   * @param {string=} ngFalseValue The value to which the expression should be set when not selected.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"checkbox-input-directive\" module=\"checkboxExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('checkboxExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.value1 = true;\n               $scope.value2 = 'YES'\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           Value1: <input type=\"checkbox\" ng-model=\"value1\"> <br/>\n           Value2: <input type=\"checkbox\" ng-model=\"value2\"\n                          ng-true-value=\"YES\" ng-false-value=\"NO\"> <br/>\n           <tt>value1 = {{value1}}</tt><br/>\n           <tt>value2 = {{value2}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var value1 = element(by.binding('value1'));\n            var value2 = element(by.binding('value2'));\n\n            expect(value1.getText()).toContain('true');\n            expect(value2.getText()).toContain('YES');\n\n            element(by.model('value1')).click();\n            element(by.model('value2')).click();\n\n            expect(value1.getText()).toContain('false');\n            expect(value2.getText()).toContain('NO');\n          });\n        </file>\n      </example>\n   */\n  'checkbox': checkboxInputType,\n\n  'hidden': noop,\n  'button': noop,\n  'submit': noop,\n  'reset': noop,\n  'file': noop\n};\n\n// A helper function to call $setValidity and return the value / undefined,\n// a pattern that is repeated a lot in the input validation logic.\nfunction validate(ctrl, validatorName, validity, value){\n  ctrl.$setValidity(validatorName, validity);\n  return validity ? value : undefined;\n}\n\nfunction testFlags(validity, flags) {\n  var i, flag;\n  if (flags) {\n    for (i=0; i<flags.length; ++i) {\n      flag = flags[i];\n      if (validity[flag]) {\n        return true;\n      }\n    }\n  }\n  return false;\n}\n\n// Pass validity so that behaviour can be mocked easier.\nfunction addNativeHtml5Validators(ctrl, validatorName, badFlags, ignoreFlags, validity) {\n  if (isObject(validity)) {\n    ctrl.$$hasNativeValidators = true;\n    var validator = function(value) {\n      // Don't overwrite previous validation, don't consider valueMissing to apply (ng-required can\n      // perform the required validation)\n      if (!ctrl.$error[validatorName] &&\n          !testFlags(validity, ignoreFlags) &&\n          testFlags(validity, badFlags)) {\n        ctrl.$setValidity(validatorName, false);\n        return;\n      }\n      return value;\n    };\n    ctrl.$parsers.push(validator);\n  }\n}\n\nfunction textInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  var validity = element.prop(VALIDITY_STATE_PROPERTY);\n  var placeholder = element[0].placeholder, noevent = {};\n  var type = lowercase(element[0].type);\n  ctrl.$$validityState = validity;\n\n  // In composition mode, users are still inputing intermediate text buffer,\n  // hold the listener until composition is done.\n  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent\n  if (!$sniffer.android) {\n    var composing = false;\n\n    element.on('compositionstart', function(data) {\n      composing = true;\n    });\n\n    element.on('compositionend', function() {\n      composing = false;\n      listener();\n    });\n  }\n\n  var listener = function(ev) {\n    if (composing) return;\n    var value = element.val();\n\n    // IE (11 and under) seem to emit an 'input' event if the placeholder value changes.\n    // We don't want to dirty the value when this happens, so we abort here. Unfortunately,\n    // IE also sends input events for other non-input-related things, (such as focusing on a\n    // form control), so this change is not entirely enough to solve this.\n    if (msie && (ev || noevent).type === 'input' && element[0].placeholder !== placeholder) {\n      placeholder = element[0].placeholder;\n      return;\n    }\n\n    // By default we will trim the value\n    // If the attribute ng-trim exists we will avoid trimming\n    // If input type is 'password', the value is never trimmed\n    if (type !== 'password' && (toBoolean(attr.ngTrim || 'T'))) {\n      value = trim(value);\n    }\n\n    // If a control is suffering from bad input, browsers discard its value, so it may be\n    // necessary to revalidate even if the control's value is the same empty value twice in\n    // a row.\n    var revalidate = validity && ctrl.$$hasNativeValidators;\n    if (ctrl.$viewValue !== value || (value === '' && revalidate)) {\n      if (scope.$root.$$phase) {\n        ctrl.$setViewValue(value);\n      } else {\n        scope.$apply(function() {\n          ctrl.$setViewValue(value);\n        });\n      }\n    }\n  };\n\n  // if the browser does support \"input\" event, we are fine - except on IE9 which doesn't fire the\n  // input event on backspace, delete or cut\n  if ($sniffer.hasEvent('input')) {\n    element.on('input', listener);\n  } else {\n    var timeout;\n\n    var deferListener = function() {\n      if (!timeout) {\n        timeout = $browser.defer(function() {\n          listener();\n          timeout = null;\n        });\n      }\n    };\n\n    element.on('keydown', function(event) {\n      var key = event.keyCode;\n\n      // ignore\n      //    command            modifiers                   arrows\n      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;\n\n      deferListener();\n    });\n\n    // if user modifies input value using context menu in IE, we need \"paste\" and \"cut\" events to catch it\n    if ($sniffer.hasEvent('paste')) {\n      element.on('paste cut', deferListener);\n    }\n  }\n\n  // if user paste into input using mouse on older browser\n  // or form autocomplete on newer browser, we need \"change\" event to catch it\n  element.on('change', listener);\n\n  ctrl.$render = function() {\n    element.val(ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue);\n  };\n\n  // pattern validator\n  var pattern = attr.ngPattern,\n      patternValidator,\n      match;\n\n  if (pattern) {\n    var validateRegex = function(regexp, value) {\n      return validate(ctrl, 'pattern', ctrl.$isEmpty(value) || regexp.test(value), value);\n    };\n    match = pattern.match(/^\\/(.*)\\/([gim]*)$/);\n    if (match) {\n      pattern = new RegExp(match[1], match[2]);\n      patternValidator = function(value) {\n        return validateRegex(pattern, value);\n      };\n    } else {\n      patternValidator = function(value) {\n        var patternObj = scope.$eval(pattern);\n\n        if (!patternObj || !patternObj.test) {\n          throw minErr('ngPattern')('noregexp',\n            'Expected {0} to be a RegExp but was {1}. Element: {2}', pattern,\n            patternObj, startingTag(element));\n        }\n        return validateRegex(patternObj, value);\n      };\n    }\n\n    ctrl.$formatters.push(patternValidator);\n    ctrl.$parsers.push(patternValidator);\n  }\n\n  // min length validator\n  if (attr.ngMinlength) {\n    var minlength = int(attr.ngMinlength);\n    var minLengthValidator = function(value) {\n      return validate(ctrl, 'minlength', ctrl.$isEmpty(value) || value.length >= minlength, value);\n    };\n\n    ctrl.$parsers.push(minLengthValidator);\n    ctrl.$formatters.push(minLengthValidator);\n  }\n\n  // max length validator\n  if (attr.ngMaxlength) {\n    var maxlength = int(attr.ngMaxlength);\n    var maxLengthValidator = function(value) {\n      return validate(ctrl, 'maxlength', ctrl.$isEmpty(value) || value.length <= maxlength, value);\n    };\n\n    ctrl.$parsers.push(maxLengthValidator);\n    ctrl.$formatters.push(maxLengthValidator);\n  }\n}\n\nvar numberBadFlags = ['badInput'];\n\nfunction numberInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  textInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  ctrl.$parsers.push(function(value) {\n    var empty = ctrl.$isEmpty(value);\n    if (empty || NUMBER_REGEXP.test(value)) {\n      ctrl.$setValidity('number', true);\n      return value === '' ? null : (empty ? value : parseFloat(value));\n    } else {\n      ctrl.$setValidity('number', false);\n      return undefined;\n    }\n  });\n\n  addNativeHtml5Validators(ctrl, 'number', numberBadFlags, null, ctrl.$$validityState);\n\n  ctrl.$formatters.push(function(value) {\n    return ctrl.$isEmpty(value) ? '' : '' + value;\n  });\n\n  if (attr.min) {\n    var minValidator = function(value) {\n      var min = parseFloat(attr.min);\n      return validate(ctrl, 'min', ctrl.$isEmpty(value) || value >= min, value);\n    };\n\n    ctrl.$parsers.push(minValidator);\n    ctrl.$formatters.push(minValidator);\n  }\n\n  if (attr.max) {\n    var maxValidator = function(value) {\n      var max = parseFloat(attr.max);\n      return validate(ctrl, 'max', ctrl.$isEmpty(value) || value <= max, value);\n    };\n\n    ctrl.$parsers.push(maxValidator);\n    ctrl.$formatters.push(maxValidator);\n  }\n\n  ctrl.$formatters.push(function(value) {\n    return validate(ctrl, 'number', ctrl.$isEmpty(value) || isNumber(value), value);\n  });\n}\n\nfunction urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  textInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var urlValidator = function(value) {\n    return validate(ctrl, 'url', ctrl.$isEmpty(value) || URL_REGEXP.test(value), value);\n  };\n\n  ctrl.$formatters.push(urlValidator);\n  ctrl.$parsers.push(urlValidator);\n}\n\nfunction emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  textInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var emailValidator = function(value) {\n    return validate(ctrl, 'email', ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value), value);\n  };\n\n  ctrl.$formatters.push(emailValidator);\n  ctrl.$parsers.push(emailValidator);\n}\n\nfunction radioInputType(scope, element, attr, ctrl) {\n  // make the name unique, if not defined\n  if (isUndefined(attr.name)) {\n    element.attr('name', nextUid());\n  }\n\n  element.on('click', function() {\n    if (element[0].checked) {\n      scope.$apply(function() {\n        ctrl.$setViewValue(attr.value);\n      });\n    }\n  });\n\n  ctrl.$render = function() {\n    var value = attr.value;\n    element[0].checked = (value == ctrl.$viewValue);\n  };\n\n  attr.$observe('value', ctrl.$render);\n}\n\nfunction checkboxInputType(scope, element, attr, ctrl) {\n  var trueValue = attr.ngTrueValue,\n      falseValue = attr.ngFalseValue;\n\n  if (!isString(trueValue)) trueValue = true;\n  if (!isString(falseValue)) falseValue = false;\n\n  element.on('click', function() {\n    scope.$apply(function() {\n      ctrl.$setViewValue(element[0].checked);\n    });\n  });\n\n  ctrl.$render = function() {\n    element[0].checked = ctrl.$viewValue;\n  };\n\n  // Override the standard `$isEmpty` because a value of `false` means empty in a checkbox.\n  ctrl.$isEmpty = function(value) {\n    return value !== trueValue;\n  };\n\n  ctrl.$formatters.push(function(value) {\n    return value === trueValue;\n  });\n\n  ctrl.$parsers.push(function(value) {\n    return value ? trueValue : falseValue;\n  });\n}\n\n\n/**\n * @ngdoc directive\n * @name textarea\n * @restrict E\n *\n * @description\n * HTML textarea element control with angular data-binding. The data-binding and validation\n * properties of this element are exactly the same as those of the\n * {@link ng.directive:input input element}.\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength.\n * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n *    patterns defined as scope expressions.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n */\n\n\n/**\n * @ngdoc directive\n * @name input\n * @restrict E\n *\n * @description\n * HTML input element control with angular data-binding. Input control follows HTML5 input types\n * and polyfills the HTML5 validation behavior for older browsers.\n *\n * *NOTE* Not every feature offered is available for all input types.\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {boolean=} ngRequired Sets `required` attribute if set to true\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength.\n * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n *    patterns defined as scope expressions.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n *    This parameter is ignored for input[type=password] controls, which will never trim the\n *    input.\n *\n * @example\n    <example name=\"input-directive\" module=\"inputExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('inputExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.user = {name: 'guest', last: 'visitor'};\n            }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <form name=\"myForm\">\n           User name: <input type=\"text\" name=\"userName\" ng-model=\"user.name\" required>\n           <span class=\"error\" ng-show=\"myForm.userName.$error.required\">\n             Required!</span><br>\n           Last name: <input type=\"text\" name=\"lastName\" ng-model=\"user.last\"\n             ng-minlength=\"3\" ng-maxlength=\"10\">\n           <span class=\"error\" ng-show=\"myForm.lastName.$error.minlength\">\n             Too short!</span>\n           <span class=\"error\" ng-show=\"myForm.lastName.$error.maxlength\">\n             Too long!</span><br>\n         </form>\n         <hr>\n         <tt>user = {{user}}</tt><br/>\n         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br>\n         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br>\n         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br>\n         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br>\n         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br>\n         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br>\n       </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var user = element(by.binding('{{user}}'));\n        var userNameValid = element(by.binding('myForm.userName.$valid'));\n        var lastNameValid = element(by.binding('myForm.lastName.$valid'));\n        var lastNameError = element(by.binding('myForm.lastName.$error'));\n        var formValid = element(by.binding('myForm.$valid'));\n        var userNameInput = element(by.model('user.name'));\n        var userLastInput = element(by.model('user.last'));\n\n        it('should initialize to model', function() {\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty when required', function() {\n          userNameInput.clear();\n          userNameInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('false');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be valid if empty when min length is set', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"\"}');\n          expect(lastNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if less than required min length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('xx');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('minlength');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be invalid if longer than max length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('some ridiculously long name');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('maxlength');\n          expect(formValid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n */\nvar inputDirective = ['$browser', '$sniffer', function($browser, $sniffer) {\n  return {\n    restrict: 'E',\n    require: '?ngModel',\n    link: function(scope, element, attr, ctrl) {\n      if (ctrl) {\n        (inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrl, $sniffer,\n                                                            $browser);\n      }\n    }\n  };\n}];\n\nvar VALID_CLASS = 'ng-valid',\n    INVALID_CLASS = 'ng-invalid',\n    PRISTINE_CLASS = 'ng-pristine',\n    DIRTY_CLASS = 'ng-dirty';\n\n/**\n * @ngdoc type\n * @name ngModel.NgModelController\n *\n * @property {string} $viewValue Actual string value in the view.\n * @property {*} $modelValue The value in the model, that the control is bound to.\n * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever\n       the control reads value from the DOM.  Each function is called, in turn, passing the value\n       through to the next. The last return value is used to populate the model.\n       Used to sanitize / convert the value as well as validation. For validation,\n       the parsers should update the validity state using\n       {@link ngModel.NgModelController#$setValidity $setValidity()},\n       and return `undefined` for invalid values.\n\n *\n * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever\n       the model value changes. Each function is called, in turn, passing the value through to the\n       next. Used to format / convert values for display in the control and validation.\n * ```js\n * function formatter(value) {\n *   if (value) {\n *     return value.toUpperCase();\n *   }\n * }\n * ngModel.$formatters.push(formatter);\n * ```\n *\n * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever the\n *     view value has changed. It is called with no arguments, and its return value is ignored.\n *     This can be used in place of additional $watches against the model value.\n *\n * @property {Object} $error An object hash with all errors as keys.\n *\n * @property {boolean} $pristine True if user has not interacted with the control yet.\n * @property {boolean} $dirty True if user has already interacted with the control.\n * @property {boolean} $valid True if there is no error.\n * @property {boolean} $invalid True if at least one error on the control.\n *\n * @description\n *\n * `NgModelController` provides API for the `ng-model` directive. The controller contains\n * services for data-binding, validation, CSS updates, and value formatting and parsing. It\n * purposefully does not contain any logic which deals with DOM rendering or listening to\n * DOM events. Such DOM related logic should be provided by other directives which make use of\n * `NgModelController` for data-binding.\n *\n * ## Custom Control Example\n * This example shows how to use `NgModelController` with a custom control to achieve\n * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)\n * collaborate together to achieve the desired result.\n *\n * Note that `contenteditable` is an HTML5 attribute, which tells the browser to let the element\n * contents be edited in place by the user.  This will not work on older browsers.\n *\n * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}\n * module to automatically remove \"bad\" content like inline event listener (e.g. `<span onclick=\"...\">`).\n * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks\n * that content using the `$sce` service.\n *\n * <example name=\"NgModelController\" module=\"customControl\" deps=\"angular-sanitize.js\">\n    <file name=\"style.css\">\n      [contenteditable] {\n        border: 1px solid black;\n        background-color: white;\n        min-height: 20px;\n      }\n\n      .ng-invalid {\n        border: 1px solid red;\n      }\n\n    </file>\n    <file name=\"script.js\">\n      angular.module('customControl', ['ngSanitize']).\n        directive('contenteditable', ['$sce', function($sce) {\n          return {\n            restrict: 'A', // only activate on element attribute\n            require: '?ngModel', // get a hold of NgModelController\n            link: function(scope, element, attrs, ngModel) {\n              if(!ngModel) return; // do nothing if no ng-model\n\n              // Specify how UI should be updated\n              ngModel.$render = function() {\n                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));\n              };\n\n              // Listen for change events to enable binding\n              element.on('blur keyup change', function() {\n                scope.$evalAsync(read);\n              });\n              read(); // initialize\n\n              // Write data to the model\n              function read() {\n                var html = element.html();\n                // When we clear the content editable the browser leaves a <br> behind\n                // If strip-br attribute is provided then we strip this out\n                if( attrs.stripBr && html == '<br>' ) {\n                  html = '';\n                }\n                ngModel.$setViewValue(html);\n              }\n            }\n          };\n        }]);\n    </file>\n    <file name=\"index.html\">\n      <form name=\"myForm\">\n       <div contenteditable\n            name=\"myWidget\" ng-model=\"userContent\"\n            strip-br=\"true\"\n            required>Change me!</div>\n        <span ng-show=\"myForm.myWidget.$error.required\">Required!</span>\n       <hr>\n       <textarea ng-model=\"userContent\"></textarea>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n    it('should data-bind and become invalid', function() {\n      if (browser.params.browser == 'safari' || browser.params.browser == 'firefox') {\n        // SafariDriver can't handle contenteditable\n        // and Firefox driver can't clear contenteditables very well\n        return;\n      }\n      var contentEditable = element(by.css('[contenteditable]'));\n      var content = 'Change me!';\n\n      expect(contentEditable.getText()).toEqual(content);\n\n      contentEditable.clear();\n      contentEditable.sendKeys(protractor.Key.BACK_SPACE);\n      expect(contentEditable.getText()).toEqual('');\n      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);\n    });\n    </file>\n * </example>\n *\n *\n */\nvar NgModelController = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate',\n    function($scope, $exceptionHandler, $attr, $element, $parse, $animate) {\n  this.$viewValue = Number.NaN;\n  this.$modelValue = Number.NaN;\n  this.$parsers = [];\n  this.$formatters = [];\n  this.$viewChangeListeners = [];\n  this.$pristine = true;\n  this.$dirty = false;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$name = $attr.name;\n\n  var ngModelGet = $parse($attr.ngModel),\n      ngModelSet = ngModelGet.assign;\n\n  if (!ngModelSet) {\n    throw minErr('ngModel')('nonassign', \"Expression '{0}' is non-assignable. Element: {1}\",\n        $attr.ngModel, startingTag($element));\n  }\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$render\n   *\n   * @description\n   * Called when the view needs to be updated. It is expected that the user of the ng-model\n   * directive will implement this method.\n   */\n  this.$render = noop;\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$isEmpty\n   *\n   * @description\n   * This is called when we need to determine if the value of the input is empty.\n   *\n   * For instance, the required directive does this to work out if the input has data or not.\n   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.\n   *\n   * You can override this for input directives whose concept of being empty is different to the\n   * default. The `checkboxInputType` directive does this because in its case a value of `false`\n   * implies empty.\n   *\n   * @param {*} value Reference to check.\n   * @returns {boolean} True if `value` is empty.\n   */\n  this.$isEmpty = function(value) {\n    return isUndefined(value) || value === '' || value === null || value !== value;\n  };\n\n  var parentForm = $element.inheritedData('$formController') || nullFormCtrl,\n      invalidCount = 0, // used to easily determine if we are valid\n      $error = this.$error = {}; // keep invalid keys here\n\n\n  // Setup initial state of the control\n  $element.addClass(PRISTINE_CLASS);\n  toggleValidCss(true);\n\n  // convenience method for easy toggling of classes\n  function toggleValidCss(isValid, validationErrorKey) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n    $animate.removeClass($element, (isValid ? INVALID_CLASS : VALID_CLASS) + validationErrorKey);\n    $animate.addClass($element, (isValid ? VALID_CLASS : INVALID_CLASS) + validationErrorKey);\n  }\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setValidity\n   *\n   * @description\n   * Change the validity state, and notifies the form when the control changes validity. (i.e. it\n   * does not notify form if given validator is already marked as invalid).\n   *\n   * This method should be called by validators - i.e. the parser or formatter functions.\n   *\n   * @param {string} validationErrorKey Name of the validator. the `validationErrorKey` will assign\n   *        to `$error[validationErrorKey]=!isValid` so that it is available for data-binding.\n   *        The `validationErrorKey` should be in camelCase and will get converted into dash-case\n   *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`\n   *        class and can be bound to as  `{{someForm.someControl.$error.myError}}` .\n   * @param {boolean} isValid Whether the current state is valid (true) or invalid (false).\n   */\n  this.$setValidity = function(validationErrorKey, isValid) {\n    // Purposeful use of ! here to cast isValid to boolean in case it is undefined\n    // jshint -W018\n    if ($error[validationErrorKey] === !isValid) return;\n    // jshint +W018\n\n    if (isValid) {\n      if ($error[validationErrorKey]) invalidCount--;\n      if (!invalidCount) {\n        toggleValidCss(true);\n        this.$valid = true;\n        this.$invalid = false;\n      }\n    } else {\n      toggleValidCss(false);\n      this.$invalid = true;\n      this.$valid = false;\n      invalidCount++;\n    }\n\n    $error[validationErrorKey] = !isValid;\n    toggleValidCss(isValid, validationErrorKey);\n\n    parentForm.$setValidity(validationErrorKey, isValid, this);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setPristine\n   *\n   * @description\n   * Sets the control to its pristine state.\n   *\n   * This method can be called to remove the 'ng-dirty' class and set the control to its pristine\n   * state (ng-pristine class).\n   */\n  this.$setPristine = function () {\n    this.$dirty = false;\n    this.$pristine = true;\n    $animate.removeClass($element, DIRTY_CLASS);\n    $animate.addClass($element, PRISTINE_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setViewValue\n   *\n   * @description\n   * Update the view value.\n   *\n   * This method should be called when the view value changes, typically from within a DOM event handler.\n   * For example {@link ng.directive:input input} and\n   * {@link ng.directive:select select} directives call it.\n   *\n   * It will update the $viewValue, then pass this value through each of the functions in `$parsers`,\n   * which includes any validators. The value that comes out of this `$parsers` pipeline, be applied to\n   * `$modelValue` and the **expression** specified in the `ng-model` attribute.\n   *\n   * Lastly, all the registered change listeners, in the `$viewChangeListeners` list, are called.\n   *\n   * Note that calling this function does not trigger a `$digest`.\n   *\n   * @param {string} value Value from the view.\n   */\n  this.$setViewValue = function(value) {\n    this.$viewValue = value;\n\n    // change to dirty\n    if (this.$pristine) {\n      this.$dirty = true;\n      this.$pristine = false;\n      $animate.removeClass($element, PRISTINE_CLASS);\n      $animate.addClass($element, DIRTY_CLASS);\n      parentForm.$setDirty();\n    }\n\n    forEach(this.$parsers, function(fn) {\n      value = fn(value);\n    });\n\n    if (this.$modelValue !== value) {\n      this.$modelValue = value;\n      ngModelSet($scope, value);\n      forEach(this.$viewChangeListeners, function(listener) {\n        try {\n          listener();\n        } catch(e) {\n          $exceptionHandler(e);\n        }\n      });\n    }\n  };\n\n  // model -> value\n  var ctrl = this;\n\n  $scope.$watch(function ngModelWatch() {\n    var value = ngModelGet($scope);\n\n    // if scope model value and ngModel value are out of sync\n    if (ctrl.$modelValue !== value) {\n\n      var formatters = ctrl.$formatters,\n          idx = formatters.length;\n\n      ctrl.$modelValue = value;\n      while(idx--) {\n        value = formatters[idx](value);\n      }\n\n      if (ctrl.$viewValue !== value) {\n        ctrl.$viewValue = value;\n        ctrl.$render();\n      }\n    }\n\n    return value;\n  });\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngModel\n *\n * @element input\n *\n * @description\n * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a\n * property on the scope using {@link ngModel.NgModelController NgModelController},\n * which is created and exposed by this directive.\n *\n * `ngModel` is responsible for:\n *\n * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`\n *   require.\n * - Providing validation behavior (i.e. required, number, email, url).\n * - Keeping the state of the control (valid/invalid, dirty/pristine, validation errors).\n * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`) including animations.\n * - Registering the control with its parent {@link ng.directive:form form}.\n *\n * Note: `ngModel` will try to bind to the property given by evaluating the expression on the\n * current scope. If the property doesn't already exist on this scope, it will be created\n * implicitly and added to the scope.\n *\n * For best practices on using `ngModel`, see:\n *\n *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)\n *\n * For basic examples, how to use `ngModel`, see:\n *\n *  - {@link ng.directive:input input}\n *    - {@link input[text] text}\n *    - {@link input[checkbox] checkbox}\n *    - {@link input[radio] radio}\n *    - {@link input[number] number}\n *    - {@link input[email] email}\n *    - {@link input[url] url}\n *  - {@link ng.directive:select select}\n *  - {@link ng.directive:textarea textarea}\n *\n * # CSS classes\n * The following CSS classes are added and removed on the associated input/select/textarea element\n * depending on the validity of the model.\n *\n *  - `ng-valid` is set if the model is valid.\n *  - `ng-invalid` is set if the model is invalid.\n *  - `ng-pristine` is set if the model is pristine.\n *  - `ng-dirty` is set if the model is dirty.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n * ## Animation Hooks\n *\n * Animations within models are triggered when any of the associated CSS classes are added and removed\n * on the input element which is attached to the model. These classes are: `.ng-pristine`, `.ng-dirty`,\n * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.\n * The animations that are triggered within ngModel are similar to how they work in ngClass and\n * animations can be hooked into using CSS transitions, keyframes as well as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style an input element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-input {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-input.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n * <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"inputExample\">\n     <file name=\"index.html\">\n       <script>\n        angular.module('inputExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.val = '1';\n          }]);\n       </script>\n       <style>\n         .my-input {\n           -webkit-transition:all linear 0.5s;\n           transition:all linear 0.5s;\n           background: transparent;\n         }\n         .my-input.ng-invalid {\n           color:white;\n           background: red;\n         }\n       </style>\n       Update input to see transitions when valid/invalid.\n       Integer is a valid value.\n       <form name=\"testForm\" ng-controller=\"ExampleController\">\n         <input ng-model=\"val\" ng-pattern=\"/^\\d+$/\" name=\"anim\" class=\"my-input\" />\n       </form>\n     </file>\n * </example>\n */\nvar ngModelDirective = function() {\n  return {\n    require: ['ngModel', '^?form'],\n    controller: NgModelController,\n    link: function(scope, element, attr, ctrls) {\n      // notify others, especially parent forms\n\n      var modelCtrl = ctrls[0],\n          formCtrl = ctrls[1] || nullFormCtrl;\n\n      formCtrl.$addControl(modelCtrl);\n\n      scope.$on('$destroy', function() {\n        formCtrl.$removeControl(modelCtrl);\n      });\n    }\n  };\n};\n\n\n/**\n * @ngdoc directive\n * @name ngChange\n *\n * @description\n * Evaluate the given expression when the user changes the input.\n * The expression is evaluated immediately, unlike the JavaScript onchange event\n * which only triggers at the end of a change (usually, when the user leaves the\n * form element or presses the return key).\n * The expression is not evaluated when the value change is coming from the model.\n *\n * Note, this directive requires `ngModel` to be present.\n *\n * @element input\n * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change\n * in input value.\n *\n * @example\n * <example name=\"ngChange-directive\" module=\"changeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('changeExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.counter = 0;\n *           $scope.change = function() {\n *             $scope.counter++;\n *           };\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input type=\"checkbox\" ng-model=\"confirmed\" ng-change=\"change()\" id=\"ng-change-example1\" />\n *       <input type=\"checkbox\" ng-model=\"confirmed\" id=\"ng-change-example2\" />\n *       <label for=\"ng-change-example2\">Confirmed</label><br />\n *       <tt>debug = {{confirmed}}</tt><br/>\n *       <tt>counter = {{counter}}</tt><br/>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var counter = element(by.binding('counter'));\n *     var debug = element(by.binding('confirmed'));\n *\n *     it('should evaluate the expression if changing from view', function() {\n *       expect(counter.getText()).toContain('0');\n *\n *       element(by.id('ng-change-example1')).click();\n *\n *       expect(counter.getText()).toContain('1');\n *       expect(debug.getText()).toContain('true');\n *     });\n *\n *     it('should not evaluate the expression if changing from model', function() {\n *       element(by.id('ng-change-example2')).click();\n\n *       expect(counter.getText()).toContain('0');\n *       expect(debug.getText()).toContain('true');\n *     });\n *   </file>\n * </example>\n */\nvar ngChangeDirective = valueFn({\n  require: 'ngModel',\n  link: function(scope, element, attr, ctrl) {\n    ctrl.$viewChangeListeners.push(function() {\n      scope.$eval(attr.ngChange);\n    });\n  }\n});\n\n\nvar requiredDirective = function() {\n  return {\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n      attr.required = true; // force truthy in case we are on non input element\n\n      var validator = function(value) {\n        if (attr.required && ctrl.$isEmpty(value)) {\n          ctrl.$setValidity('required', false);\n          return;\n        } else {\n          ctrl.$setValidity('required', true);\n          return value;\n        }\n      };\n\n      ctrl.$formatters.push(validator);\n      ctrl.$parsers.unshift(validator);\n\n      attr.$observe('required', function() {\n        validator(ctrl.$viewValue);\n      });\n    }\n  };\n};\n\n\n/**\n * @ngdoc directive\n * @name ngList\n *\n * @description\n * Text input that converts between a delimited string and an array of strings. The delimiter\n * can be a fixed string (by default a comma) or a regular expression.\n *\n * @element input\n * @param {string=} ngList optional delimiter that should be used to split the value. If\n *   specified in form `/something/` then the value will be converted into a regular expression.\n *\n * @example\n    <example name=\"ngList-directive\" module=\"listExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('listExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.names = ['igor', 'misko', 'vojta'];\n           }]);\n       </script>\n       <form name=\"myForm\" ng-controller=\"ExampleController\">\n         List: <input name=\"namesInput\" ng-model=\"names\" ng-list required>\n         <span class=\"error\" ng-show=\"myForm.namesInput.$error.required\">\n           Required!</span>\n         <br>\n         <tt>names = {{names}}</tt><br/>\n         <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>\n         <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var listInput = element(by.model('names'));\n        var names = element(by.binding('{{names}}'));\n        var valid = element(by.binding('myForm.namesInput.$valid'));\n        var error = element(by.css('span.error'));\n\n        it('should initialize to model', function() {\n          expect(names.getText()).toContain('[\"igor\",\"misko\",\"vojta\"]');\n          expect(valid.getText()).toContain('true');\n          expect(error.getCssValue('display')).toBe('none');\n        });\n\n        it('should be invalid if empty', function() {\n          listInput.clear();\n          listInput.sendKeys('');\n\n          expect(names.getText()).toContain('');\n          expect(valid.getText()).toContain('false');\n          expect(error.getCssValue('display')).not.toBe('none');        });\n      </file>\n    </example>\n */\nvar ngListDirective = function() {\n  return {\n    require: 'ngModel',\n    link: function(scope, element, attr, ctrl) {\n      var match = /\\/(.*)\\//.exec(attr.ngList),\n          separator = match && new RegExp(match[1]) || attr.ngList || ',';\n\n      var parse = function(viewValue) {\n        // If the viewValue is invalid (say required but empty) it will be `undefined`\n        if (isUndefined(viewValue)) return;\n\n        var list = [];\n\n        if (viewValue) {\n          forEach(viewValue.split(separator), function(value) {\n            if (value) list.push(trim(value));\n          });\n        }\n\n        return list;\n      };\n\n      ctrl.$parsers.push(parse);\n      ctrl.$formatters.push(function(value) {\n        if (isArray(value)) {\n          return value.join(', ');\n        }\n\n        return undefined;\n      });\n\n      // Override the standard $isEmpty because an empty array means the input is empty.\n      ctrl.$isEmpty = function(value) {\n        return !value || !value.length;\n      };\n    }\n  };\n};\n\n\nvar CONSTANT_VALUE_REGEXP = /^(true|false|\\d+)$/;\n/**\n * @ngdoc directive\n * @name ngValue\n *\n * @description\n * Binds the given expression to the value of `input[select]` or `input[radio]`, so\n * that when the element is selected, the `ngModel` of that element is set to the\n * bound value.\n *\n * `ngValue` is useful when dynamically generating lists of radio buttons using `ng-repeat`, as\n * shown below.\n *\n * @element input\n * @param {string=} ngValue angular expression, whose value will be bound to the `value` attribute\n *   of the `input` element\n *\n * @example\n    <example name=\"ngValue-directive\" module=\"valueExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('valueExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.names = ['pizza', 'unicorns', 'robots'];\n              $scope.my = { favorite: 'unicorns' };\n            }]);\n       </script>\n        <form ng-controller=\"ExampleController\">\n          <h2>Which is your favorite?</h2>\n            <label ng-repeat=\"name in names\" for=\"{{name}}\">\n              {{name}}\n              <input type=\"radio\"\n                     ng-model=\"my.favorite\"\n                     ng-value=\"name\"\n                     id=\"{{name}}\"\n                     name=\"favorite\">\n            </label>\n          <div>You chose {{my.favorite}}</div>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var favorite = element(by.binding('my.favorite'));\n\n        it('should initialize to model', function() {\n          expect(favorite.getText()).toContain('unicorns');\n        });\n        it('should bind the values to the inputs', function() {\n          element.all(by.model('my.favorite')).get(0).click();\n          expect(favorite.getText()).toContain('pizza');\n        });\n      </file>\n    </example>\n */\nvar ngValueDirective = function() {\n  return {\n    priority: 100,\n    compile: function(tpl, tplAttr) {\n      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {\n        return function ngValueConstantLink(scope, elm, attr) {\n          attr.$set('value', scope.$eval(attr.ngValue));\n        };\n      } else {\n        return function ngValueLink(scope, elm, attr) {\n          scope.$watch(attr.ngValue, function valueWatchAction(value) {\n            attr.$set('value', value);\n          });\n        };\n      }\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngBind\n * @restrict AC\n *\n * @description\n * The `ngBind` attribute tells Angular to replace the text content of the specified HTML element\n * with the value of a given expression, and to update the text content when the value of that\n * expression changes.\n *\n * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like\n * `{{ expression }}` which is similar but less verbose.\n *\n * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily\n * displayed by the browser in its raw state before Angular compiles it. Since `ngBind` is an\n * element attribute, it makes the bindings invisible to the user while the page is loading.\n *\n * An alternative solution to this problem would be using the\n * {@link ng.directive:ngCloak ngCloak} directive.\n *\n *\n * @element ANY\n * @param {expression} ngBind {@link guide/expression Expression} to evaluate.\n *\n * @example\n * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.\n   <example module=\"bindExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.name = 'Whirled';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         Enter name: <input type=\"text\" ng-model=\"name\"><br>\n         Hello <span ng-bind=\"name\"></span>!\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var nameInput = element(by.model('name'));\n\n         expect(element(by.binding('name')).getText()).toBe('Whirled');\n         nameInput.clear();\n         nameInput.sendKeys('world');\n         expect(element(by.binding('name')).getText()).toBe('world');\n       });\n     </file>\n   </example>\n */\nvar ngBindDirective = ngDirective({\n  compile: function(templateElement) {\n    templateElement.addClass('ng-binding');\n    return function (scope, element, attr) {\n      element.data('$binding', attr.ngBind);\n      scope.$watch(attr.ngBind, function ngBindWatchAction(value) {\n        // We are purposefully using == here rather than === because we want to\n        // catch when value is \"null or undefined\"\n        // jshint -W041\n        element.text(value == undefined ? '' : value);\n      });\n    };\n  }\n});\n\n\n/**\n * @ngdoc directive\n * @name ngBindTemplate\n *\n * @description\n * The `ngBindTemplate` directive specifies that the element\n * text content should be replaced with the interpolation of the template\n * in the `ngBindTemplate` attribute.\n * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`\n * expressions. This directive is needed since some HTML elements\n * (such as TITLE and OPTION) cannot contain SPAN elements.\n *\n * @element ANY\n * @param {string} ngBindTemplate template of form\n *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.\n *\n * @example\n * Try it here: enter text in text box and watch the greeting change.\n   <example module=\"bindExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function ($scope) {\n             $scope.salutation = 'Hello';\n             $scope.name = 'World';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n        Salutation: <input type=\"text\" ng-model=\"salutation\"><br>\n        Name: <input type=\"text\" ng-model=\"name\"><br>\n        <pre ng-bind-template=\"{{salutation}} {{name}}!\"></pre>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var salutationElem = element(by.binding('salutation'));\n         var salutationInput = element(by.model('salutation'));\n         var nameInput = element(by.model('name'));\n\n         expect(salutationElem.getText()).toBe('Hello World!');\n\n         salutationInput.clear();\n         salutationInput.sendKeys('Greetings');\n         nameInput.clear();\n         nameInput.sendKeys('user');\n\n         expect(salutationElem.getText()).toBe('Greetings user!');\n       });\n     </file>\n   </example>\n */\nvar ngBindTemplateDirective = ['$interpolate', function($interpolate) {\n  return function(scope, element, attr) {\n    // TODO: move this to scenario runner\n    var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));\n    element.addClass('ng-binding').data('$binding', interpolateFn);\n    attr.$observe('ngBindTemplate', function(value) {\n      element.text(value);\n    });\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindHtml\n *\n * @description\n * Creates a binding that will innerHTML the result of evaluating the `expression` into the current\n * element in a secure way.  By default, the innerHTML-ed content will be sanitized using the {@link\n * ngSanitize.$sanitize $sanitize} service.  To utilize this functionality, ensure that `$sanitize`\n * is available, for example, by including {@link ngSanitize} in your module's dependencies (not in\n * core Angular). In order to use {@link ngSanitize} in your module's dependencies, you need to\n * include \"angular-sanitize.js\" in your application.\n *\n * You may also bypass sanitization for values you know are safe. To do so, bind to\n * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example\n * under {@link ng.$sce#Example Strict Contextual Escaping (SCE)}.\n *\n * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you\n * will have an exception (instead of an exploit.)\n *\n * @element ANY\n * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.\n *\n * @example\n\n   <example module=\"bindHtmlExample\" deps=\"angular-sanitize.js\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n        <p ng-bind-html=\"myHTML\"></p>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n       angular.module('bindHtmlExample', ['ngSanitize'])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.myHTML =\n              'I am an <code>HTML</code>string with ' +\n              '<a href=\"#\">links!</a> and other <em>stuff</em>';\n         }]);\n     </file>\n\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind-html', function() {\n         expect(element(by.binding('myHTML')).getText()).toBe(\n             'I am an HTMLstring with links! and other stuff');\n       });\n     </file>\n   </example>\n */\nvar ngBindHtmlDirective = ['$sce', '$parse', function($sce, $parse) {\n  return {\n    compile: function (tElement) {\n      tElement.addClass('ng-binding');\n\n      return function (scope, element, attr) {\n        element.data('$binding', attr.ngBindHtml);\n\n        var parsed = $parse(attr.ngBindHtml);\n\n        function getStringValue() {\n          return (parsed(scope) || '').toString();\n        }\n\n        scope.$watch(getStringValue, function ngBindHtmlWatchAction(value) {\n          element.html($sce.getTrustedHtml(parsed(scope)) || '');\n        });\n      };\n    }\n  };\n}];\n\nfunction classDirective(name, selector) {\n  name = 'ngClass' + name;\n  return ['$animate', function($animate) {\n    return {\n      restrict: 'AC',\n      link: function(scope, element, attr) {\n        var oldVal;\n\n        scope.$watch(attr[name], ngClassWatchAction, true);\n\n        attr.$observe('class', function(value) {\n          ngClassWatchAction(scope.$eval(attr[name]));\n        });\n\n\n        if (name !== 'ngClass') {\n          scope.$watch('$index', function($index, old$index) {\n            // jshint bitwise: false\n            var mod = $index & 1;\n            if (mod !== (old$index & 1)) {\n              var classes = arrayClasses(scope.$eval(attr[name]));\n              mod === selector ?\n                addClasses(classes) :\n                removeClasses(classes);\n            }\n          });\n        }\n\n        function addClasses(classes) {\n          var newClasses = digestClassCounts(classes, 1);\n          attr.$addClass(newClasses);\n        }\n\n        function removeClasses(classes) {\n          var newClasses = digestClassCounts(classes, -1);\n          attr.$removeClass(newClasses);\n        }\n\n        function digestClassCounts (classes, count) {\n          var classCounts = element.data('$classCounts') || {};\n          var classesToUpdate = [];\n          forEach(classes, function (className) {\n            if (count > 0 || classCounts[className]) {\n              classCounts[className] = (classCounts[className] || 0) + count;\n              if (classCounts[className] === +(count > 0)) {\n                classesToUpdate.push(className);\n              }\n            }\n          });\n          element.data('$classCounts', classCounts);\n          return classesToUpdate.join(' ');\n        }\n\n        function updateClasses (oldClasses, newClasses) {\n          var toAdd = arrayDifference(newClasses, oldClasses);\n          var toRemove = arrayDifference(oldClasses, newClasses);\n          toRemove = digestClassCounts(toRemove, -1);\n          toAdd = digestClassCounts(toAdd, 1);\n\n          if (toAdd.length === 0) {\n            $animate.removeClass(element, toRemove);\n          } else if (toRemove.length === 0) {\n            $animate.addClass(element, toAdd);\n          } else {\n            $animate.setClass(element, toAdd, toRemove);\n          }\n        }\n\n        function ngClassWatchAction(newVal) {\n          if (selector === true || scope.$index % 2 === selector) {\n            var newClasses = arrayClasses(newVal || []);\n            if (!oldVal) {\n              addClasses(newClasses);\n            } else if (!equals(newVal,oldVal)) {\n              var oldClasses = arrayClasses(oldVal);\n              updateClasses(oldClasses, newClasses);\n            }\n          }\n          oldVal = shallowCopy(newVal);\n        }\n      }\n    };\n\n    function arrayDifference(tokens1, tokens2) {\n      var values = [];\n\n      outer:\n      for(var i = 0; i < tokens1.length; i++) {\n        var token = tokens1[i];\n        for(var j = 0; j < tokens2.length; j++) {\n          if(token == tokens2[j]) continue outer;\n        }\n        values.push(token);\n      }\n      return values;\n    }\n\n    function arrayClasses (classVal) {\n      if (isArray(classVal)) {\n        return classVal;\n      } else if (isString(classVal)) {\n        return classVal.split(' ');\n      } else if (isObject(classVal)) {\n        var classes = [], i = 0;\n        forEach(classVal, function(v, k) {\n          if (v) {\n            classes = classes.concat(k.split(' '));\n          }\n        });\n        return classes;\n      }\n      return classVal;\n    }\n  }];\n}\n\n/**\n * @ngdoc directive\n * @name ngClass\n * @restrict AC\n *\n * @description\n * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding\n * an expression that represents all classes to be added.\n *\n * The directive operates in three different ways, depending on which of three types the expression\n * evaluates to:\n *\n * 1. If the expression evaluates to a string, the string should be one or more space-delimited class\n * names.\n *\n * 2. If the expression evaluates to an array, each element of the array should be a string that is\n * one or more space-delimited class names.\n *\n * 3. If the expression evaluates to an object, then for each key-value pair of the\n * object with a truthy value the corresponding key is used as a class name.\n *\n * The directive won't add duplicate classes if a particular class was already set.\n *\n * When the expression changes, the previously added classes are removed and only then the\n * new classes are added.\n *\n * @animations\n * add - happens just before the class is applied to the element\n * remove - happens just before the class is removed from the element\n *\n * @element ANY\n * @param {expression} ngClass {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class\n *   names, an array, or a map of class names to boolean values. In the case of a map, the\n *   names of the properties whose values are truthy will be added as css classes to the\n *   element.\n *\n * @example Example that demonstrates basic bindings via ngClass directive.\n   <example>\n     <file name=\"index.html\">\n       <p ng-class=\"{strike: deleted, bold: important, red: error}\">Map Syntax Example</p>\n       <input type=\"checkbox\" ng-model=\"deleted\"> deleted (apply \"strike\" class)<br>\n       <input type=\"checkbox\" ng-model=\"important\"> important (apply \"bold\" class)<br>\n       <input type=\"checkbox\" ng-model=\"error\"> error (apply \"red\" class)\n       <hr>\n       <p ng-class=\"style\">Using String Syntax</p>\n       <input type=\"text\" ng-model=\"style\" placeholder=\"Type: bold strike red\">\n       <hr>\n       <p ng-class=\"[style1, style2, style3]\">Using Array Syntax</p>\n       <input ng-model=\"style1\" placeholder=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style2\" placeholder=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style3\" placeholder=\"Type: bold, strike or red\"><br>\n     </file>\n     <file name=\"style.css\">\n       .strike {\n         text-decoration: line-through;\n       }\n       .bold {\n           font-weight: bold;\n       }\n       .red {\n           color: red;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var ps = element.all(by.css('p'));\n\n       it('should let you toggle the class', function() {\n\n         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);\n         expect(ps.first().getAttribute('class')).not.toMatch(/red/);\n\n         element(by.model('important')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/bold/);\n\n         element(by.model('error')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/red/);\n       });\n\n       it('should let you toggle string example', function() {\n         expect(ps.get(1).getAttribute('class')).toBe('');\n         element(by.model('style')).clear();\n         element(by.model('style')).sendKeys('red');\n         expect(ps.get(1).getAttribute('class')).toBe('red');\n       });\n\n       it('array example should have 3 classes', function() {\n         expect(ps.last().getAttribute('class')).toBe('');\n         element(by.model('style1')).sendKeys('bold');\n         element(by.model('style2')).sendKeys('strike');\n         element(by.model('style3')).sendKeys('red');\n         expect(ps.last().getAttribute('class')).toBe('bold strike red');\n       });\n     </file>\n   </example>\n\n   ## Animations\n\n   The example below demonstrates how to perform animations using ngClass.\n\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n      <input id=\"setbtn\" type=\"button\" value=\"set\" ng-click=\"myVar='my-class'\">\n      <input id=\"clearbtn\" type=\"button\" value=\"clear\" ng-click=\"myVar=''\">\n      <br>\n      <span class=\"base-class\" ng-class=\"myVar\">Sample Text</span>\n     </file>\n     <file name=\"style.css\">\n       .base-class {\n         -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n       }\n\n       .base-class.my-class {\n         color: red;\n         font-size:3em;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class', function() {\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n\n         element(by.id('setbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).\n           toMatch(/my-class/);\n\n         element(by.id('clearbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n       });\n     </file>\n   </example>\n\n\n   ## ngClass and pre-existing CSS3 Transitions/Animations\n   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.\n   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder\n   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure\n   to view the step by step details of {@link ngAnimate.$animate#addclass $animate.addClass} and\n   {@link ngAnimate.$animate#removeclass $animate.removeClass}.\n */\nvar ngClassDirective = classDirective('', true);\n\n/**\n * @ngdoc directive\n * @name ngClassOdd\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}}\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassOddDirective = classDirective('Odd', 0);\n\n/**\n * @ngdoc directive\n * @name ngClassEven\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The\n *   result of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}} &nbsp; &nbsp; &nbsp;\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassEvenDirective = classDirective('Even', 1);\n\n/**\n * @ngdoc directive\n * @name ngCloak\n * @restrict AC\n *\n * @description\n * The `ngCloak` directive is used to prevent the Angular html template from being briefly\n * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this\n * directive to avoid the undesirable flicker effect caused by the html template display.\n *\n * The directive can be applied to the `<body>` element, but the preferred usage is to apply\n * multiple `ngCloak` directives to small portions of the page to permit progressive rendering\n * of the browser view.\n *\n * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and\n * `angular.min.js`.\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```css\n * [ng\\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {\n *   display: none !important;\n * }\n * ```\n *\n * When this css rule is loaded by the browser, all html elements (including their children) that\n * are tagged with the `ngCloak` directive are hidden. When Angular encounters this directive\n * during the compilation of the template it deletes the `ngCloak` element attribute, making\n * the compiled element visible.\n *\n * For the best result, the `angular.js` script must be loaded in the head section of the html\n * document; alternatively, the css rule above must be included in the external stylesheet of the\n * application.\n *\n * Legacy browsers, like IE7, do not provide attribute selector support (added in CSS 2.1) so they\n * cannot match the `[ng\\:cloak]` selector. To work around this limitation, you must add the css\n * class `ng-cloak` in addition to the `ngCloak` directive as shown in the example below.\n *\n * @element ANY\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <div id=\"template1\" ng-cloak>{{ 'hello' }}</div>\n        <div id=\"template2\" ng-cloak class=\"ng-cloak\">{{ 'hello IE7' }}</div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should remove the template directive and css class', function() {\n         expect($('#template1').getAttribute('ng-cloak')).\n           toBeNull();\n         expect($('#template2').getAttribute('ng-cloak')).\n           toBeNull();\n       });\n     </file>\n   </example>\n *\n */\nvar ngCloakDirective = ngDirective({\n  compile: function(element, attr) {\n    attr.$set('ngCloak', undefined);\n    element.removeClass('ng-cloak');\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngController\n *\n * @description\n * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular\n * supports the principles behind the Model-View-Controller design pattern.\n *\n * MVC components in angular:\n *\n * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties\n *   are accessed through bindings.\n * * View — The template (HTML with data bindings) that is rendered into the View.\n * * Controller — The `ngController` directive specifies a Controller class; the class contains business\n *   logic behind the application to decorate the scope with functions and values\n *\n * Note that you can also attach controllers to the DOM by declaring it in a route definition\n * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller\n * again using `ng-controller` in the template itself.  This will cause the controller to be attached\n * and executed twice.\n *\n * @element ANY\n * @scope\n * @priority 500\n * @param {expression} ngController Name of a globally accessible constructor function or an\n *     {@link guide/expression expression} that on the current scope evaluates to a\n *     constructor function. The controller instance can be published into a scope property\n *     by specifying `as propertyName`.\n *\n * @example\n * Here is a simple form for editing user contact information. Adding, removing, clearing, and\n * greeting are methods declared on the controller (see source tab). These methods can\n * easily be called from the angular markup. Any changes to the data are automatically reflected\n * in the View without the need for a manual update.\n *\n * Two different declaration styles are included below:\n *\n * * one binds methods and properties directly onto the controller using `this`:\n * `ng-controller=\"SettingsController1 as settings\"`\n * * one injects `$scope` into the controller:\n * `ng-controller=\"SettingsController2\"`\n *\n * The second option is more common in the Angular community, and is generally used in boilerplates\n * and in this guide. However, there are advantages to binding properties directly to the controller\n * and avoiding scope.\n *\n * * Using `controller as` makes it obvious which controller you are accessing in the template when\n * multiple controllers apply to an element.\n * * If you are writing your controllers as classes you have easier access to the properties and\n * methods, which will appear on the scope, from inside the controller code.\n * * Since there is always a `.` in the bindings, you don't have to worry about prototypal\n * inheritance masking primitives.\n *\n * This example demonstrates the `controller as` syntax.\n *\n * <example name=\"ngControllerAs\" module=\"controllerAsExample\">\n *   <file name=\"index.html\">\n *    <div id=\"ctrl-as-exmpl\" ng-controller=\"SettingsController1 as settings\">\n *      Name: <input type=\"text\" ng-model=\"settings.name\"/>\n *      [ <a href=\"\" ng-click=\"settings.greet()\">greet</a> ]<br/>\n *      Contact:\n *      <ul>\n *        <li ng-repeat=\"contact in settings.contacts\">\n *          <select ng-model=\"contact.type\">\n *             <option>phone</option>\n *             <option>email</option>\n *          </select>\n *          <input type=\"text\" ng-model=\"contact.value\"/>\n *          [ <a href=\"\" ng-click=\"settings.clearContact(contact)\">clear</a>\n *          | <a href=\"\" ng-click=\"settings.removeContact(contact)\">X</a> ]\n *        </li>\n *        <li>[ <a href=\"\" ng-click=\"settings.addContact()\">add</a> ]</li>\n *     </ul>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('controllerAsExample', [])\n *      .controller('SettingsController1', SettingsController1);\n *\n *    function SettingsController1() {\n *      this.name = \"John Smith\";\n *      this.contacts = [\n *        {type: 'phone', value: '408 555 1212'},\n *        {type: 'email', value: 'john.smith@example.org'} ];\n *    }\n *\n *    SettingsController1.prototype.greet = function() {\n *      alert(this.name);\n *    };\n *\n *    SettingsController1.prototype.addContact = function() {\n *      this.contacts.push({type: 'email', value: 'yourname@example.org'});\n *    };\n *\n *    SettingsController1.prototype.removeContact = function(contactToRemove) {\n *     var index = this.contacts.indexOf(contactToRemove);\n *      this.contacts.splice(index, 1);\n *    };\n *\n *    SettingsController1.prototype.clearContact = function(contact) {\n *      contact.type = 'phone';\n *      contact.value = '';\n *    };\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should check controller as', function() {\n *       var container = element(by.id('ctrl-as-exmpl'));\n *         expect(container.element(by.model('settings.name'))\n *           .getAttribute('value')).toBe('John Smith');\n *\n *       var firstRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(0));\n *       var secondRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(1));\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('408 555 1212');\n *\n *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('john.smith@example.org');\n *\n *       firstRepeat.element(by.linkText('clear')).click();\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('');\n *\n *       container.element(by.linkText('add')).click();\n *\n *       expect(container.element(by.repeater('contact in settings.contacts').row(2))\n *           .element(by.model('contact.value'))\n *           .getAttribute('value'))\n *           .toBe('yourname@example.org');\n *     });\n *   </file>\n * </example>\n *\n * This example demonstrates the \"attach to `$scope`\" style of controller.\n *\n * <example name=\"ngController\" module=\"controllerExample\">\n *  <file name=\"index.html\">\n *   <div id=\"ctrl-exmpl\" ng-controller=\"SettingsController2\">\n *     Name: <input type=\"text\" ng-model=\"name\"/>\n *     [ <a href=\"\" ng-click=\"greet()\">greet</a> ]<br/>\n *     Contact:\n *     <ul>\n *       <li ng-repeat=\"contact in contacts\">\n *         <select ng-model=\"contact.type\">\n *            <option>phone</option>\n *            <option>email</option>\n *         </select>\n *         <input type=\"text\" ng-model=\"contact.value\"/>\n *         [ <a href=\"\" ng-click=\"clearContact(contact)\">clear</a>\n *         | <a href=\"\" ng-click=\"removeContact(contact)\">X</a> ]\n *       </li>\n *       <li>[ <a href=\"\" ng-click=\"addContact()\">add</a> ]</li>\n *    </ul>\n *   </div>\n *  </file>\n *  <file name=\"app.js\">\n *   angular.module('controllerExample', [])\n *     .controller('SettingsController2', ['$scope', SettingsController2]);\n *\n *   function SettingsController2($scope) {\n *     $scope.name = \"John Smith\";\n *     $scope.contacts = [\n *       {type:'phone', value:'408 555 1212'},\n *       {type:'email', value:'john.smith@example.org'} ];\n *\n *     $scope.greet = function() {\n *       alert($scope.name);\n *     };\n *\n *     $scope.addContact = function() {\n *       $scope.contacts.push({type:'email', value:'yourname@example.org'});\n *     };\n *\n *     $scope.removeContact = function(contactToRemove) {\n *       var index = $scope.contacts.indexOf(contactToRemove);\n *       $scope.contacts.splice(index, 1);\n *     };\n *\n *     $scope.clearContact = function(contact) {\n *       contact.type = 'phone';\n *       contact.value = '';\n *     };\n *   }\n *  </file>\n *  <file name=\"protractor.js\" type=\"protractor\">\n *    it('should check controller', function() {\n *      var container = element(by.id('ctrl-exmpl'));\n *\n *      expect(container.element(by.model('name'))\n *          .getAttribute('value')).toBe('John Smith');\n *\n *      var firstRepeat =\n *          container.element(by.repeater('contact in contacts').row(0));\n *      var secondRepeat =\n *          container.element(by.repeater('contact in contacts').row(1));\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('408 555 1212');\n *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('john.smith@example.org');\n *\n *      firstRepeat.element(by.linkText('clear')).click();\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('');\n *\n *      container.element(by.linkText('add')).click();\n *\n *      expect(container.element(by.repeater('contact in contacts').row(2))\n *          .element(by.model('contact.value'))\n *          .getAttribute('value'))\n *          .toBe('yourname@example.org');\n *    });\n *  </file>\n *</example>\n\n */\nvar ngControllerDirective = [function() {\n  return {\n    scope: true,\n    controller: '@',\n    priority: 500\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngCsp\n *\n * @element html\n * @description\n * Enables [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) support.\n *\n * This is necessary when developing things like Google Chrome Extensions.\n *\n * CSP forbids apps to use `eval` or `Function(string)` generated functions (among other things).\n * For Angular to be CSP compatible there are only two things that we need to do differently:\n *\n * - don't use `Function` constructor to generate optimized value getters\n * - don't inject custom stylesheet into the document\n *\n * AngularJS uses `Function(string)` generated functions as a speed optimization. Applying the `ngCsp`\n * directive will cause Angular to use CSP compatibility mode. When this mode is on AngularJS will\n * evaluate all expressions up to 30% slower than in non-CSP mode, but no security violations will\n * be raised.\n *\n * CSP forbids JavaScript to inline stylesheet rules. In non CSP mode Angular automatically\n * includes some CSS rules (e.g. {@link ng.directive:ngCloak ngCloak}).\n * To make those directives work in CSP mode, include the `angular-csp.css` manually.\n *\n * Angular tries to autodetect if CSP is active and automatically turn on the CSP-safe mode. This\n * autodetection however triggers a CSP error to be logged in the console:\n *\n * ```\n * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of\n * script in the following Content Security Policy directive: \"default-src 'self'\". Note that\n * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.\n * ```\n *\n * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`\n * directive on the root element of the application or on the `angular.js` script tag, whichever\n * appears first in the html document.\n *\n * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*\n *\n * @example\n * This example shows how to apply the `ngCsp` directive to the `html` tag.\n   ```html\n     <!doctype html>\n     <html ng-app ng-csp>\n     ...\n     ...\n     </html>\n   ```\n */\n\n// ngCsp is not implemented as a proper directive any more, because we need it be processed while we\n// bootstrap the system (before $parse is instantiated), for this reason we just have\n// the csp.isActive() fn that looks for ng-csp attribute anywhere in the current doc\n\n/**\n * @ngdoc directive\n * @name ngClick\n *\n * @description\n * The ngClick directive allows you to specify custom behavior when\n * an element is clicked.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon\n * click. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-click=\"count = count + 1\" ng-init=\"count=0\">\n        Increment\n      </button>\n      <span>\n        count: {{count}}\n      <span>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-click', function() {\n         expect(element(by.binding('count')).getText()).toMatch('0');\n         element(by.css('button')).click();\n         expect(element(by.binding('count')).getText()).toMatch('1');\n       });\n     </file>\n   </example>\n */\n/*\n * A collection of directives that allows creation of custom event handlers that are defined as\n * angular expressions and are compiled and executed within the current scope.\n */\nvar ngEventDirectives = {};\n\n// For events that might fire synchronously during DOM manipulation\n// we need to execute their event handlers asynchronously using $evalAsync,\n// so that they are not executed in an inconsistent state.\nvar forceAsyncEvents = {\n  'blur': true,\n  'focus': true\n};\nforEach(\n  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),\n  function(eventName) {\n    var directiveName = directiveNormalize('ng-' + eventName);\n    ngEventDirectives[directiveName] = ['$parse', '$rootScope', function($parse, $rootScope) {\n      return {\n        compile: function($element, attr) {\n          // We expose the powerful $event object on the scope that provides access to the Window,\n          // etc. that isn't protected by the fast paths in $parse.  We explicitly request better\n          // checks at the cost of speed since event handler expressions are not executed as\n          // frequently as regular change detection.\n          var fn = $parse(attr[directiveName], /* expensiveChecks */ true);\n          return function ngEventHandler(scope, element) {\n            element.on(eventName, function(event) {\n              var callback = function() {\n                fn(scope, {$event:event});\n              };\n              if (forceAsyncEvents[eventName] && $rootScope.$$phase) {\n                scope.$evalAsync(callback);\n              } else {\n                scope.$apply(callback);\n              }\n            });\n          };\n        }\n      };\n    }];\n  }\n);\n\n/**\n * @ngdoc directive\n * @name ngDblclick\n *\n * @description\n * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon\n * a dblclick. (The Event object is available as `$event`)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-dblclick=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on double click)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousedown\n *\n * @description\n * The ngMousedown directive allows you to specify custom behavior on mousedown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon\n * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mousedown=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse down)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseup\n *\n * @description\n * Specify custom behavior on mouseup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon\n * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseup=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse up)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngMouseover\n *\n * @description\n * Specify custom behavior on mouseover event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon\n * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseover=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse is over)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseenter\n *\n * @description\n * Specify custom behavior on mouseenter event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon\n * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseenter=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse enters)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseleave\n *\n * @description\n * Specify custom behavior on mouseleave event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon\n * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseleave=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse leaves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousemove\n *\n * @description\n * Specify custom behavior on mousemove event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon\n * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mousemove=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse moves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeydown\n *\n * @description\n * Specify custom behavior on keydown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon\n * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-keydown=\"count = count + 1\" ng-init=\"count=0\">\n      key down count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeyup\n *\n * @description\n * Specify custom behavior on keyup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon\n * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <p>Typing in the input box below updates the key count</p>\n       <input ng-keyup=\"count = count + 1\" ng-init=\"count=0\"> key up count: {{count}}\n\n       <p>Typing in the input box below updates the keycode</p>\n       <input ng-keyup=\"event=$event\">\n       <p>event keyCode: {{ event.keyCode }}</p>\n       <p>event altKey: {{ event.altKey }}</p>\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeypress\n *\n * @description\n * Specify custom behavior on keypress event.\n *\n * @element ANY\n * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon\n * keypress. ({@link guide/expression#-event- Event object is available as `$event`}\n * and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-keypress=\"count = count + 1\" ng-init=\"count=0\">\n      key press count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSubmit\n *\n * @description\n * Enables binding angular expressions to onsubmit events.\n *\n * Additionally it prevents the default action (which for form means sending the request to the\n * server and reloading the current page), but only if the form does not contain `action`,\n * `data-action`, or `x-action` attributes.\n *\n * <div class=\"alert alert-warning\">\n * **Warning:** Be careful not to cause \"double-submission\" by using both the `ngClick` and\n * `ngSubmit` handlers together. See the\n * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}\n * for a detailed discussion of when `ngSubmit` may be triggered.\n * </div>\n *\n * @element form\n * @priority 0\n * @param {expression} ngSubmit {@link guide/expression Expression} to eval.\n * ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example module=\"submitExample\">\n     <file name=\"index.html\">\n      <script>\n        angular.module('submitExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.list = [];\n            $scope.text = 'hello';\n            $scope.submit = function() {\n              if ($scope.text) {\n                $scope.list.push(this.text);\n                $scope.text = '';\n              }\n            };\n          }]);\n      </script>\n      <form ng-submit=\"submit()\" ng-controller=\"ExampleController\">\n        Enter text and hit enter:\n        <input type=\"text\" ng-model=\"text\" name=\"text\" />\n        <input type=\"submit\" id=\"submit\" value=\"Submit\" />\n        <pre>list={{list}}</pre>\n      </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-submit', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n         expect(element(by.model('text')).getAttribute('value')).toBe('');\n       });\n       it('should ignore empty strings', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n        });\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngFocus\n *\n * @description\n * Specify custom behavior on focus event.\n *\n * Note: As the `focus` event is executed synchronously when calling `input.focus()`\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon\n * focus. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngBlur\n *\n * @description\n * Specify custom behavior on blur event.\n *\n * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when\n * an element has lost focus.\n *\n * Note: As the `blur` event is executed synchronously also during DOM manipulations\n * (e.g. removing a focussed input),\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon\n * blur. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngCopy\n *\n * @description\n * Specify custom behavior on copy event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon\n * copy. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-copy=\"copied=true\" ng-init=\"copied=false; value='copy me'\" ng-model=\"value\">\n      copied: {{copied}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngCut\n *\n * @description\n * Specify custom behavior on cut event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon\n * cut. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-cut=\"cut=true\" ng-init=\"cut=false; value='cut me'\" ng-model=\"value\">\n      cut: {{cut}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngPaste\n *\n * @description\n * Specify custom behavior on paste event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon\n * paste. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-paste=\"paste=true\" ng-init=\"paste=false\" placeholder='paste here'>\n      pasted: {{paste}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngIf\n * @restrict A\n *\n * @description\n * The `ngIf` directive removes or recreates a portion of the DOM tree based on an\n * {expression}. If the expression assigned to `ngIf` evaluates to a false\n * value then the element is removed from the DOM, otherwise a clone of the\n * element is reinserted into the DOM.\n *\n * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the\n * element in the DOM rather than changing its visibility via the `display` css property.  A common\n * case when this difference is significant is when using css selectors that rely on an element's\n * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.\n *\n * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope\n * is created when the element is restored.  The scope created within `ngIf` inherits from\n * its parent scope using\n * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).\n * An important implication of this is if `ngModel` is used within `ngIf` to bind to\n * a javascript primitive defined in the parent scope. In this case any modifications made to the\n * variable within the child scope will override (hide) the value in the parent scope.\n *\n * Also, `ngIf` recreates elements using their compiled state. An example of this behavior\n * is if an element's class attribute is directly modified after it's compiled, using something like\n * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element\n * the added class will be lost because the original compiled state is used to regenerate the element.\n *\n * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`\n * and `leave` effects.\n *\n * @animations\n * enter - happens just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container\n * leave - happens just before the `ngIf` contents are removed from the DOM\n *\n * @element ANY\n * @scope\n * @priority 600\n * @param {expression} ngIf If the {@link guide/expression expression} is falsy then\n *     the element is removed from the DOM tree. If it is truthy a copy of the compiled\n *     element is added to the DOM tree.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\" ng-init=\"checked=true\" /><br/>\n      Show when checked:\n      <span ng-if=\"checked\" class=\"animate-if\">\n        I'm removed when the checkbox is unchecked.\n      </span>\n    </file>\n    <file name=\"animations.css\">\n      .animate-if {\n        background:white;\n        border:1px solid black;\n        padding:10px;\n      }\n\n      .animate-if.ng-enter, .animate-if.ng-leave {\n        -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n      }\n\n      .animate-if.ng-enter,\n      .animate-if.ng-leave.ng-leave-active {\n        opacity:0;\n      }\n\n      .animate-if.ng-leave,\n      .animate-if.ng-enter.ng-enter-active {\n        opacity:1;\n      }\n    </file>\n  </example>\n */\nvar ngIfDirective = ['$animate', function($animate) {\n  return {\n    transclude: 'element',\n    priority: 600,\n    terminal: true,\n    restrict: 'A',\n    $$tlb: true,\n    link: function ($scope, $element, $attr, ctrl, $transclude) {\n        var block, childScope, previousElements;\n        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {\n\n          if (toBoolean(value)) {\n            if (!childScope) {\n              childScope = $scope.$new();\n              $transclude(childScope, function (clone) {\n                clone[clone.length++] = document.createComment(' end ngIf: ' + $attr.ngIf + ' ');\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block = {\n                  clone: clone\n                };\n                $animate.enter(clone, $element.parent(), $element);\n              });\n            }\n          } else {\n            if(previousElements) {\n              previousElements.remove();\n              previousElements = null;\n            }\n            if(childScope) {\n              childScope.$destroy();\n              childScope = null;\n            }\n            if(block) {\n              previousElements = getBlockElements(block.clone);\n              $animate.leave(previousElements, function() {\n                previousElements = null;\n              });\n              block = null;\n            }\n          }\n        });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngInclude\n * @restrict ECA\n *\n * @description\n * Fetches, compiles and includes an external HTML fragment.\n *\n * By default, the template URL is restricted to the same domain and protocol as the\n * application document. This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols\n * you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or\n * [wrap them](ng.$sce#trustAsResourceUrl) as trusted values. Refer to Angular's {@link\n * ng.$sce Strict Contextual Escaping}.\n *\n * In addition, the browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy may further restrict whether the template is successfully loaded.\n * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`\n * access on some browsers.\n *\n * @animations\n * enter - animation is used to bring new content into the browser.\n * leave - animation is used to animate existing content away.\n *\n * The enter and leave animation occur concurrently.\n *\n * @scope\n * @priority 400\n *\n * @param {string} ngInclude|src angular expression evaluating to URL. If the source is a string constant,\n *                 make sure you wrap it in **single** quotes, e.g. `src=\"'myPartialTemplate.html'\"`.\n * @param {string=} onload Expression to evaluate when a new partial is loaded.\n *\n * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the content is loaded.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.\n *\n * @example\n  <example module=\"includeExample\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n     <div ng-controller=\"ExampleController\">\n       <select ng-model=\"template\" ng-options=\"t.name for t in templates\">\n        <option value=\"\">(blank)</option>\n       </select>\n       url of the template: <code>{{template.url}}</code>\n       <hr/>\n       <div class=\"slide-animate-container\">\n         <div class=\"slide-animate\" ng-include=\"template.url\"></div>\n       </div>\n     </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('includeExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.templates =\n            [ { name: 'template1.html', url: 'template1.html'},\n              { name: 'template2.html', url: 'template2.html'} ];\n          $scope.template = $scope.templates[0];\n        }]);\n     </file>\n    <file name=\"template1.html\">\n      Content of template1.html\n    </file>\n    <file name=\"template2.html\">\n      Content of template2.html\n    </file>\n    <file name=\"animations.css\">\n      .slide-animate-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .slide-animate {\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter, .slide-animate.ng-leave {\n        -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n        display:block;\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter {\n        top:-50px;\n      }\n      .slide-animate.ng-enter.ng-enter-active {\n        top:0;\n      }\n\n      .slide-animate.ng-leave {\n        top:0;\n      }\n      .slide-animate.ng-leave.ng-leave-active {\n        top:50px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var templateSelect = element(by.model('template'));\n      var includeElem = element(by.css('[ng-include]'));\n\n      it('should load template1.html', function() {\n        expect(includeElem.getText()).toMatch(/Content of template1.html/);\n      });\n\n      it('should load template2.html', function() {\n        if (browser.params.browser == 'firefox') {\n          // Firefox can't handle using selects\n          // See https://github.com/angular/protractor/issues/480\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(2).click();\n        expect(includeElem.getText()).toMatch(/Content of template2.html/);\n      });\n\n      it('should change to blank', function() {\n        if (browser.params.browser == 'firefox') {\n          // Firefox can't handle using selects\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(0).click();\n        expect(includeElem.isPresent()).toBe(false);\n      });\n    </file>\n  </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentRequested\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted every time the ngInclude content is requested.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentLoaded\n * @eventType emit on the current ngInclude scope\n * @description\n * Emitted every time the ngInclude content is reloaded.\n */\nvar ngIncludeDirective = ['$http', '$templateCache', '$anchorScroll', '$animate', '$sce',\n                  function($http,   $templateCache,   $anchorScroll,   $animate,   $sce) {\n  return {\n    restrict: 'ECA',\n    priority: 400,\n    terminal: true,\n    transclude: 'element',\n    controller: angular.noop,\n    compile: function(element, attr) {\n      var srcExp = attr.ngInclude || attr.src,\n          onloadExp = attr.onload || '',\n          autoScrollExp = attr.autoscroll;\n\n      return function(scope, $element, $attr, ctrl, $transclude) {\n        var changeCounter = 0,\n            currentScope,\n            previousElement,\n            currentElement;\n\n        var cleanupLastIncludeContent = function() {\n          if(previousElement) {\n            previousElement.remove();\n            previousElement = null;\n          }\n          if(currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if(currentElement) {\n            $animate.leave(currentElement, function() {\n              previousElement = null;\n            });\n            previousElement = currentElement;\n            currentElement = null;\n          }\n        };\n\n        scope.$watch($sce.parseAsResourceUrl(srcExp), function ngIncludeWatchAction(src) {\n          var afterAnimation = function() {\n            if (isDefined(autoScrollExp) && (!autoScrollExp || scope.$eval(autoScrollExp))) {\n              $anchorScroll();\n            }\n          };\n          var thisChangeId = ++changeCounter;\n\n          if (src) {\n            $http.get(src, {cache: $templateCache}).success(function(response) {\n              if (thisChangeId !== changeCounter) return;\n              var newScope = scope.$new();\n              ctrl.template = response;\n\n              // Note: This will also link all children of ng-include that were contained in the original\n              // html. If that content contains controllers, ... they could pollute/change the scope.\n              // However, using ng-include on an element with additional content does not make sense...\n              // Note: We can't remove them in the cloneAttchFn of $transclude as that\n              // function is called before linking the content, which would apply child\n              // directives to non existing elements.\n              var clone = $transclude(newScope, function(clone) {\n                cleanupLastIncludeContent();\n                $animate.enter(clone, null, $element, afterAnimation);\n              });\n\n              currentScope = newScope;\n              currentElement = clone;\n\n              currentScope.$emit('$includeContentLoaded');\n              scope.$eval(onloadExp);\n            }).error(function() {\n              if (thisChangeId === changeCounter) cleanupLastIncludeContent();\n            });\n            scope.$emit('$includeContentRequested');\n          } else {\n            cleanupLastIncludeContent();\n            ctrl.template = null;\n          }\n        });\n      };\n    }\n  };\n}];\n\n// This directive is called during the $transclude call of the first `ngInclude` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngInclude\n// is called.\nvar ngIncludeFillContentDirective = ['$compile',\n  function($compile) {\n    return {\n      restrict: 'ECA',\n      priority: -400,\n      require: 'ngInclude',\n      link: function(scope, $element, $attr, ctrl) {\n        $element.html(ctrl.template);\n        $compile($element.contents())(scope);\n      }\n    };\n  }];\n\n/**\n * @ngdoc directive\n * @name ngInit\n * @restrict AC\n *\n * @description\n * The `ngInit` directive allows you to evaluate an expression in the\n * current scope.\n *\n * <div class=\"alert alert-error\">\n * The only appropriate use of `ngInit` is for aliasing special properties of\n * {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below. Besides this case, you\n * should use {@link guide/controller controllers} rather than `ngInit`\n * to initialize values on a scope.\n * </div>\n * <div class=\"alert alert-warning\">\n * **Note**: If you have assignment in `ngInit` along with {@link ng.$filter `$filter`}, make\n * sure you have parenthesis for correct precedence:\n * <pre class=\"prettyprint\">\n *   <div ng-init=\"test1 = (data | orderBy:'name')\"></div>\n * </pre>\n * </div>\n *\n * @priority 450\n *\n * @element ANY\n * @param {expression} ngInit {@link guide/expression Expression} to eval.\n *\n * @example\n   <example module=\"initExample\">\n     <file name=\"index.html\">\n   <script>\n     angular.module('initExample', [])\n       .controller('ExampleController', ['$scope', function($scope) {\n         $scope.list = [['a', 'b'], ['c', 'd']];\n       }]);\n   </script>\n   <div ng-controller=\"ExampleController\">\n     <div ng-repeat=\"innerList in list\" ng-init=\"outerIndex = $index\">\n       <div ng-repeat=\"value in innerList\" ng-init=\"innerIndex = $index\">\n          <span class=\"example-init\">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>\n       </div>\n     </div>\n   </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should alias index positions', function() {\n         var elements = element.all(by.css('.example-init'));\n         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');\n         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');\n         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');\n         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');\n       });\n     </file>\n   </example>\n */\nvar ngInitDirective = ngDirective({\n  priority: 450,\n  compile: function() {\n    return {\n      pre: function(scope, element, attrs) {\n        scope.$eval(attrs.ngInit);\n      }\n    };\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngNonBindable\n * @restrict AC\n * @priority 1000\n *\n * @description\n * The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current\n * DOM element. This is useful if the element contains what appears to be Angular directives and\n * bindings but which should be ignored by Angular. This could be the case if you have a site that\n * displays snippets of code, for instance.\n *\n * @element ANY\n *\n * @example\n * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,\n * but the one wrapped in `ngNonBindable` is left alone.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        <div>Normal: {{1 + 2}}</div>\n        <div ng-non-bindable>Ignored: {{1 + 2}}</div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-non-bindable', function() {\n         expect(element(by.binding('1 + 2')).getText()).toContain('3');\n         expect(element.all(by.css('div')).last().getText()).toMatch(/1 \\+ 2/);\n       });\n      </file>\n    </example>\n */\nvar ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });\n\n/**\n * @ngdoc directive\n * @name ngPluralize\n * @restrict EA\n *\n * @description\n * `ngPluralize` is a directive that displays messages according to en-US localization rules.\n * These rules are bundled with angular.js, but can be overridden\n * (see {@link guide/i18n Angular i18n} dev guide). You configure ngPluralize directive\n * by specifying the mappings between\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * and the strings to be displayed.\n *\n * # Plural categories and explicit number rules\n * There are two\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * in Angular's default en-US locale: \"one\" and \"other\".\n *\n * While a plural category may match many numbers (for example, in en-US locale, \"other\" can match\n * any number that is not 1), an explicit number rule can only match one number. For example, the\n * explicit number rule for \"3\" matches the number 3. There are examples of plural categories\n * and explicit number rules throughout the rest of this documentation.\n *\n * # Configuring ngPluralize\n * You configure ngPluralize by providing 2 attributes: `count` and `when`.\n * You can also provide an optional attribute, `offset`.\n *\n * The value of the `count` attribute can be either a string or an {@link guide/expression\n * Angular expression}; these are evaluated on the current scope for its bound value.\n *\n * The `when` attribute specifies the mappings between plural categories and the actual\n * string to be displayed. The value of the attribute should be a JSON object.\n *\n * The following example shows how to configure ngPluralize:\n *\n * ```html\n * <ng-pluralize count=\"personCount\"\n                 when=\"{'0': 'Nobody is viewing.',\n *                      'one': '1 person is viewing.',\n *                      'other': '{} people are viewing.'}\">\n * </ng-pluralize>\n *```\n *\n * In the example, `\"0: Nobody is viewing.\"` is an explicit number rule. If you did not\n * specify this rule, 0 would be matched to the \"other\" category and \"0 people are viewing\"\n * would be shown instead of \"Nobody is viewing\". You can specify an explicit number rule for\n * other numbers, for example 12, so that instead of showing \"12 people are viewing\", you can\n * show \"a dozen people are viewing\".\n *\n * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted\n * into pluralized strings. In the previous example, Angular will replace `{}` with\n * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder\n * for <span ng-non-bindable>{{numberExpression}}</span>.\n *\n * # Configuring ngPluralize with offset\n * The `offset` attribute allows further customization of pluralized text, which can result in\n * a better user experience. For example, instead of the message \"4 people are viewing this document\",\n * you might display \"John, Kate and 2 others are viewing this document\".\n * The offset attribute allows you to offset a number by any desired value.\n * Let's take a look at an example:\n *\n * ```html\n * <ng-pluralize count=\"personCount\" offset=2\n *               when=\"{'0': 'Nobody is viewing.',\n *                      '1': '{{person1}} is viewing.',\n *                      '2': '{{person1}} and {{person2}} are viewing.',\n *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',\n *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n * </ng-pluralize>\n * ```\n *\n * Notice that we are still using two plural categories(one, other), but we added\n * three explicit number rules 0, 1 and 2.\n * When one person, perhaps John, views the document, \"John is viewing\" will be shown.\n * When three people view the document, no explicit number rule is found, so\n * an offset of 2 is taken off 3, and Angular uses 1 to decide the plural category.\n * In this case, plural category 'one' is matched and \"John, Mary and one other person are viewing\"\n * is shown.\n *\n * Note that when you specify offsets, you must provide explicit number rules for\n * numbers from 0 up to and including the offset. If you use an offset of 3, for example,\n * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for\n * plural categories \"one\" and \"other\".\n *\n * @param {string|expression} count The variable to be bound to.\n * @param {string} when The mapping between plural category to its corresponding strings.\n * @param {number=} offset Offset to deduct from the total number.\n *\n * @example\n    <example module=\"pluralizeExample\">\n      <file name=\"index.html\">\n        <script>\n          angular.module('pluralizeExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.person1 = 'Igor';\n              $scope.person2 = 'Misko';\n              $scope.personCount = 1;\n            }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          Person 1:<input type=\"text\" ng-model=\"person1\" value=\"Igor\" /><br/>\n          Person 2:<input type=\"text\" ng-model=\"person2\" value=\"Misko\" /><br/>\n          Number of People:<input type=\"text\" ng-model=\"personCount\" value=\"1\" /><br/>\n\n          <!--- Example with simple pluralization rules for en locale --->\n          Without Offset:\n          <ng-pluralize count=\"personCount\"\n                        when=\"{'0': 'Nobody is viewing.',\n                               'one': '1 person is viewing.',\n                               'other': '{} people are viewing.'}\">\n          </ng-pluralize><br>\n\n          <!--- Example with offset --->\n          With Offset(2):\n          <ng-pluralize count=\"personCount\" offset=2\n                        when=\"{'0': 'Nobody is viewing.',\n                               '1': '{{person1}} is viewing.',\n                               '2': '{{person1}} and {{person2}} are viewing.',\n                               'one': '{{person1}}, {{person2}} and one other person are viewing.',\n                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n          </ng-pluralize>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should show correct pluralized string', function() {\n          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var countInput = element(by.model('personCount'));\n\n          expect(withoutOffset.getText()).toEqual('1 person is viewing.');\n          expect(withOffset.getText()).toEqual('Igor is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('0');\n\n          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');\n          expect(withOffset.getText()).toEqual('Nobody is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('2');\n\n          expect(withoutOffset.getText()).toEqual('2 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('3');\n\n          expect(withoutOffset.getText()).toEqual('3 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('4');\n\n          expect(withoutOffset.getText()).toEqual('4 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');\n        });\n        it('should show data-bound names', function() {\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var personCount = element(by.model('personCount'));\n          var person1 = element(by.model('person1'));\n          var person2 = element(by.model('person2'));\n          personCount.clear();\n          personCount.sendKeys('4');\n          person1.clear();\n          person1.sendKeys('Di');\n          person2.clear();\n          person2.sendKeys('Vojta');\n          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');\n        });\n      </file>\n    </example>\n */\nvar ngPluralizeDirective = ['$locale', '$interpolate', function($locale, $interpolate) {\n  var BRACE = /{}/g;\n  return {\n    restrict: 'EA',\n    link: function(scope, element, attr) {\n      var numberExp = attr.count,\n          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs\n          offset = attr.offset || 0,\n          whens = scope.$eval(whenExp) || {},\n          whensExpFns = {},\n          startSymbol = $interpolate.startSymbol(),\n          endSymbol = $interpolate.endSymbol(),\n          isWhen = /^when(Minus)?(.+)$/;\n\n      forEach(attr, function(expression, attributeName) {\n        if (isWhen.test(attributeName)) {\n          whens[lowercase(attributeName.replace('when', '').replace('Minus', '-'))] =\n            element.attr(attr.$attr[attributeName]);\n        }\n      });\n      forEach(whens, function(expression, key) {\n        whensExpFns[key] =\n          $interpolate(expression.replace(BRACE, startSymbol + numberExp + '-' +\n            offset + endSymbol));\n      });\n\n      scope.$watch(function ngPluralizeWatch() {\n        var value = parseFloat(scope.$eval(numberExp));\n\n        if (!isNaN(value)) {\n          //if explicit number rule such as 1, 2, 3... is defined, just use it. Otherwise,\n          //check it against pluralization rules in $locale service\n          if (!(value in whens)) value = $locale.pluralCat(value - offset);\n           return whensExpFns[value](scope, element, true);\n        } else {\n          return '';\n        }\n      }, function ngPluralizeWatchAction(newVal) {\n        element.text(newVal);\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRepeat\n *\n * @description\n * The `ngRepeat` directive instantiates a template once per item from a collection. Each template\n * instance gets its own scope, where the given loop variable is set to the current collection item,\n * and `$index` is set to the item index or key.\n *\n * Special properties are exposed on the local scope of each template instance, including:\n *\n * | Variable  | Type            | Details                                                                     |\n * |-----------|-----------------|-----------------------------------------------------------------------------|\n * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |\n * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |\n * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |\n * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |\n * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |\n * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |\n *\n * Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.\n * This may be useful when, for instance, nesting ngRepeats.\n *\n * # Special repeat start and end points\n * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending\n * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.\n * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)\n * up to and including the ending HTML tag where **ng-repeat-end** is placed.\n *\n * The example below makes use of this feature:\n * ```html\n *   <header ng-repeat-start=\"item in items\">\n *     Header {{ item }}\n *   </header>\n *   <div class=\"body\">\n *     Body {{ item }}\n *   </div>\n *   <footer ng-repeat-end>\n *     Footer {{ item }}\n *   </footer>\n * ```\n *\n * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:\n * ```html\n *   <header>\n *     Header A\n *   </header>\n *   <div class=\"body\">\n *     Body A\n *   </div>\n *   <footer>\n *     Footer A\n *   </footer>\n *   <header>\n *     Header B\n *   </header>\n *   <div class=\"body\">\n *     Body B\n *   </div>\n *   <footer>\n *     Footer B\n *   </footer>\n * ```\n *\n * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such\n * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).\n *\n * @animations\n * **.enter** - when a new item is added to the list or when an item is revealed after a filter\n *\n * **.leave** - when an item is removed from the list or when an item is filtered out\n *\n * **.move** - when an adjacent item is filtered out causing a reorder or when the item contents are reordered\n *\n * @element ANY\n * @scope\n * @priority 1000\n * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These\n *   formats are currently supported:\n *\n *   * `variable in expression` – where variable is the user defined loop variable and `expression`\n *     is a scope expression giving the collection to enumerate.\n *\n *     For example: `album in artist.albums`.\n *\n *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,\n *     and `expression` is the scope expression giving the collection to enumerate.\n *\n *     For example: `(name, age) in {'adam':10, 'amalie':12}`.\n *\n *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking function\n *     which can be used to associate the objects in the collection with the DOM elements. If no tracking function\n *     is specified the ng-repeat associates elements by identity in the collection. It is an error to have\n *     more than one tracking function to resolve to the same key. (This would mean that two distinct objects are\n *     mapped to the same DOM element, which is not possible.)  Filters should be applied to the expression,\n *     before specifying a tracking expression.\n *\n *     For example: `item in items` is equivalent to `item in items track by $id(item)`. This implies that the DOM elements\n *     will be associated by item identity in the array.\n *\n *     For example: `item in items track by $id(item)`. A built in `$id()` function can be used to assign a unique\n *     `$$hashKey` property to each item in the array. This property is then used as a key to associated DOM elements\n *     with the corresponding item in the array by identity. Moving the same object in array would move the DOM\n *     element in the same way in the DOM.\n *\n *     For example: `item in items track by item.id` is a typical pattern when the items come from the database. In this\n *     case the object identity does not matter. Two objects are considered equivalent as long as their `id`\n *     property is same.\n *\n *     For example: `item in items | filter:searchText track by item.id` is a pattern that might be used to apply a filter\n *     to items in conjunction with a tracking expression.\n *\n * @example\n * This example initializes the scope to a list of names and\n * then uses `ngRepeat` to display every person:\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-init=\"friends = [\n        {name:'John', age:25, gender:'boy'},\n        {name:'Jessie', age:30, gender:'girl'},\n        {name:'Johanna', age:28, gender:'girl'},\n        {name:'Joy', age:15, gender:'girl'},\n        {name:'Mary', age:28, gender:'girl'},\n        {name:'Peter', age:95, gender:'boy'},\n        {name:'Sebastian', age:50, gender:'boy'},\n        {name:'Erika', age:27, gender:'girl'},\n        {name:'Patrick', age:40, gender:'boy'},\n        {name:'Samantha', age:60, gender:'girl'}\n      ]\">\n        I have {{friends.length}} friends. They are:\n        <input type=\"search\" ng-model=\"q\" placeholder=\"filter friends...\" />\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends | filter:q\">\n            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:40px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        -webkit-transition:all linear 0.5s;\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:40px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var friends = element.all(by.repeater('friend in friends'));\n\n      it('should render initial data set', function() {\n        expect(friends.count()).toBe(10);\n        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');\n        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');\n        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');\n        expect(element(by.binding('friends.length')).getText())\n            .toMatch(\"I have 10 friends. They are:\");\n      });\n\n       it('should update repeater when filter predicate changes', function() {\n         expect(friends.count()).toBe(10);\n\n         element(by.model('q')).sendKeys('ma');\n\n         expect(friends.count()).toBe(2);\n         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');\n         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');\n       });\n      </file>\n    </example>\n */\nvar ngRepeatDirective = ['$parse', '$animate', function($parse, $animate) {\n  var NG_REMOVED = '$$NG_REMOVED';\n  var ngRepeatMinErr = minErr('ngRepeat');\n  return {\n    transclude: 'element',\n    priority: 1000,\n    terminal: true,\n    $$tlb: true,\n    link: function($scope, $element, $attr, ctrl, $transclude){\n        var expression = $attr.ngRepeat;\n        var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?\\s*$/),\n          trackByExp, trackByExpGetter, trackByIdExpFn, trackByIdArrayFn, trackByIdObjFn,\n          lhs, rhs, valueIdentifier, keyIdentifier,\n          hashFnLocals = {$id: hashKey};\n\n        if (!match) {\n          throw ngRepeatMinErr('iexp', \"Expected expression in form of '_item_ in _collection_[ track by _id_]' but got '{0}'.\",\n            expression);\n        }\n\n        lhs = match[1];\n        rhs = match[2];\n        trackByExp = match[3];\n\n        if (trackByExp) {\n          trackByExpGetter = $parse(trackByExp);\n          trackByIdExpFn = function(key, value, index) {\n            // assign key, value, and $index to the locals so that they can be used in hash functions\n            if (keyIdentifier) hashFnLocals[keyIdentifier] = key;\n            hashFnLocals[valueIdentifier] = value;\n            hashFnLocals.$index = index;\n            return trackByExpGetter($scope, hashFnLocals);\n          };\n        } else {\n          trackByIdArrayFn = function(key, value) {\n            return hashKey(value);\n          };\n          trackByIdObjFn = function(key) {\n            return key;\n          };\n        }\n\n        match = lhs.match(/^(?:([\\$\\w]+)|\\(([\\$\\w]+)\\s*,\\s*([\\$\\w]+)\\))$/);\n        if (!match) {\n          throw ngRepeatMinErr('iidexp', \"'_item_' in '_item_ in _collection_' should be an identifier or '(_key_, _value_)' expression, but got '{0}'.\",\n                                                                    lhs);\n        }\n        valueIdentifier = match[3] || match[1];\n        keyIdentifier = match[2];\n\n        // Store a list of elements from previous run. This is a hash where key is the item from the\n        // iterator, and the value is objects with following properties.\n        //   - scope: bound scope\n        //   - element: previous element.\n        //   - index: position\n        var lastBlockMap = {};\n\n        //watch props\n        $scope.$watchCollection(rhs, function ngRepeatAction(collection){\n          var index, length,\n              previousNode = $element[0],     // current position of the node\n              nextNode,\n              // Same as lastBlockMap but it has the current state. It will become the\n              // lastBlockMap on the next iteration.\n              nextBlockMap = {},\n              arrayLength,\n              childScope,\n              key, value, // key/value of iteration\n              trackById,\n              trackByIdFn,\n              collectionKeys,\n              block,       // last object information {scope, element, id}\n              nextBlockOrder = [],\n              elementsToRemove;\n\n\n          if (isArrayLike(collection)) {\n            collectionKeys = collection;\n            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;\n          } else {\n            trackByIdFn = trackByIdExpFn || trackByIdObjFn;\n            // if object, extract keys, sort them and use to determine order of iteration over obj props\n            collectionKeys = [];\n            for (key in collection) {\n              if (collection.hasOwnProperty(key) && key.charAt(0) != '$') {\n                collectionKeys.push(key);\n              }\n            }\n            collectionKeys.sort();\n          }\n\n          arrayLength = collectionKeys.length;\n\n          // locate existing items\n          length = nextBlockOrder.length = collectionKeys.length;\n          for(index = 0; index < length; index++) {\n           key = (collection === collectionKeys) ? index : collectionKeys[index];\n           value = collection[key];\n           trackById = trackByIdFn(key, value, index);\n           assertNotHasOwnProperty(trackById, '`track by` id');\n           if(lastBlockMap.hasOwnProperty(trackById)) {\n             block = lastBlockMap[trackById];\n             delete lastBlockMap[trackById];\n             nextBlockMap[trackById] = block;\n             nextBlockOrder[index] = block;\n           } else if (nextBlockMap.hasOwnProperty(trackById)) {\n             // restore lastBlockMap\n             forEach(nextBlockOrder, function(block) {\n               if (block && block.scope) lastBlockMap[block.id] = block;\n             });\n             // This is a duplicate and we need to throw an error\n             throw ngRepeatMinErr('dupes',\n                  \"Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}\",\n                  expression, trackById, toJson(value));\n           } else {\n             // new never before seen block\n             nextBlockOrder[index] = { id: trackById };\n             nextBlockMap[trackById] = false;\n           }\n         }\n\n          // remove existing items\n          for (key in lastBlockMap) {\n            // lastBlockMap is our own object so we don't need to use special hasOwnPropertyFn\n            if (lastBlockMap.hasOwnProperty(key)) {\n              block = lastBlockMap[key];\n              elementsToRemove = getBlockElements(block.clone);\n              $animate.leave(elementsToRemove);\n              forEach(elementsToRemove, function(element) { element[NG_REMOVED] = true; });\n              block.scope.$destroy();\n            }\n          }\n\n          // we are not using forEach for perf reasons (trying to avoid #call)\n          for (index = 0, length = collectionKeys.length; index < length; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            block = nextBlockOrder[index];\n            if (nextBlockOrder[index - 1]) previousNode = getBlockEnd(nextBlockOrder[index - 1]);\n\n            if (block.scope) {\n              // if we have already seen this object, then we need to reuse the\n              // associated scope/element\n              childScope = block.scope;\n\n              nextNode = previousNode;\n              do {\n                nextNode = nextNode.nextSibling;\n              } while(nextNode && nextNode[NG_REMOVED]);\n\n              if (getBlockStart(block) != nextNode) {\n                // existing item which got moved\n                $animate.move(getBlockElements(block.clone), null, jqLite(previousNode));\n              }\n              previousNode = getBlockEnd(block);\n            } else {\n              // new item which we don't know about\n              childScope = $scope.$new();\n            }\n\n            childScope[valueIdentifier] = value;\n            if (keyIdentifier) childScope[keyIdentifier] = key;\n            childScope.$index = index;\n            childScope.$first = (index === 0);\n            childScope.$last = (index === (arrayLength - 1));\n            childScope.$middle = !(childScope.$first || childScope.$last);\n            // jshint bitwise: false\n            childScope.$odd = !(childScope.$even = (index&1) === 0);\n            // jshint bitwise: true\n\n            if (!block.scope) {\n              $transclude(childScope, function(clone) {\n                clone[clone.length++] = document.createComment(' end ngRepeat: ' + expression + ' ');\n                $animate.enter(clone, null, jqLite(previousNode));\n                previousNode = clone;\n                block.scope = childScope;\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block.clone = clone;\n                nextBlockMap[block.id] = block;\n              });\n            }\n          }\n          lastBlockMap = nextBlockMap;\n        });\n    }\n  };\n\n  function getBlockStart(block) {\n    return block.clone[0];\n  }\n\n  function getBlockEnd(block) {\n    return block.clone[block.clone.length - 1];\n  }\n}];\n\n/**\n * @ngdoc directive\n * @name ngShow\n *\n * @description\n * The `ngShow` directive shows or hides the given HTML element based on the expression\n * provided to the `ngShow` attribute. The element is shown or hidden by removing or adding\n * the `.ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined\n * in AngularJS and sets the display style to none (using an !important flag).\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is visible) -->\n * <div ng-show=\"myValue\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is hidden) -->\n * <div ng-show=\"myValue\" class=\"ng-hide\"></div>\n * ```\n *\n * When the `ngShow` expression evaluates to false then the `.ng-hide` CSS class is added to the class attribute\n * on the element causing it to become hidden. When true, the `.ng-hide` CSS class is removed\n * from the element causing the element not to appear hidden.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Here is a list of values that ngShow will consider as a falsy value (case insensitive):<br />\n * \"f\" / \"0\" / \"false\" / \"no\" / \"n\" / \"[]\"\n * </div>\n *\n * ## Why is !important used?\n *\n * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector\n * can be easily overridden by heavier selectors. For example, something as simple\n * as changing the display style on a HTML list item would make hidden elements appear visible.\n * This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector\n * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the\n * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display:none!important`. If you wish to change\n * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`\n * class in CSS:\n *\n * ```css\n * .ng-hide {\n *   //this is just another form of hiding an element\n *   display:block!important;\n *   position:absolute;\n *   top:-9999px;\n *   left:-9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the display style.\n *\n * ## A note about animations with `ngShow`\n *\n * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression\n * is true and false. This system works like the animation system present with ngClass except that\n * you must also include the !important flag to override the display property\n * so that you can perform an animation when the element is hidden during the time of the animation.\n *\n * ```css\n * //\n * //a working example can be found at the bottom of this page\n * //\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition:0.5s linear all;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.2.17 (and 1.3.0-beta.11), there is no need to change the display\n * property to block during animation states--ngAnimate will handle the style toggling automatically for you.\n *\n * @animations\n * addClass: `.ng-hide` - happens after the `ngShow` expression evaluates to a truthy value and the just before contents are set to visible\n * removeClass: `.ng-hide` - happens after the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden\n *\n * @element ANY\n * @param {expression} ngShow If the {@link guide/expression expression} is truthy\n *     then the element is shown or hidden respectively.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n      <div>\n        Show:\n        <div class=\"check-element animate-show\" ng-show=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-up\"></span> I show up when your checkbox is checked.\n        </div>\n      </div>\n      <div>\n        Hide:\n        <div class=\"check-element animate-show\" ng-hide=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-down\"></span> I hide when your checkbox is checked.\n        </div>\n      </div>\n    </file>\n    <file name=\"glyphicons.css\">\n      @import url(//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-glyphicons.css);\n    </file>\n    <file name=\"animations.css\">\n      .animate-show {\n        -webkit-transition:all linear 0.5s;\n        transition:all linear 0.5s;\n        line-height:20px;\n        opacity:1;\n        padding:10px;\n        border:1px solid black;\n        background:white;\n      }\n\n      .animate-show.ng-hide {\n        line-height:0;\n        opacity:0;\n        padding:0 10px;\n      }\n\n      .check-element {\n        padding:10px;\n        border:1px solid black;\n        background:white;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));\n      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));\n\n      it('should check ng-show / ng-hide', function() {\n        expect(thumbsUp.isDisplayed()).toBeFalsy();\n        expect(thumbsDown.isDisplayed()).toBeTruthy();\n\n        element(by.model('checked')).click();\n\n        expect(thumbsUp.isDisplayed()).toBeTruthy();\n        expect(thumbsDown.isDisplayed()).toBeFalsy();\n      });\n    </file>\n  </example>\n */\nvar ngShowDirective = ['$animate', function($animate) {\n  return function(scope, element, attr) {\n    scope.$watch(attr.ngShow, function ngShowWatchAction(value){\n      $animate[toBoolean(value) ? 'removeClass' : 'addClass'](element, 'ng-hide');\n    });\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngHide\n *\n * @description\n * The `ngHide` directive shows or hides the given HTML element based on the expression\n * provided to the `ngHide` attribute. The element is shown or hidden by removing or adding\n * the `ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined\n * in AngularJS and sets the display style to none (using an !important flag).\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is hidden) -->\n * <div ng-hide=\"myValue\" class=\"ng-hide\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is visible) -->\n * <div ng-hide=\"myValue\"></div>\n * ```\n *\n * When the `.ngHide` expression evaluates to true then the `.ng-hide` CSS class is added to the class attribute\n * on the element causing it to become hidden. When false, the `.ng-hide` CSS class is removed\n * from the element causing the element not to appear hidden.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Here is a list of values that ngHide will consider as a falsy value (case insensitive):<br />\n * \"f\" / \"0\" / \"false\" / \"no\" / \"n\" / \"[]\"\n * </div>\n *\n * ## Why is !important used?\n *\n * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector\n * can be easily overridden by heavier selectors. For example, something as simple\n * as changing the display style on a HTML list item would make hidden elements appear visible.\n * This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector\n * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the\n * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display:none!important`. If you wish to change\n * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`\n * class in CSS:\n *\n * ```css\n * .ng-hide {\n *   //this is just another form of hiding an element\n *   display:block!important;\n *   position:absolute;\n *   top:-9999px;\n *   left:-9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the display style.\n *\n * ## A note about animations with `ngHide`\n *\n * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression\n * is true and false. This system works like the animation system present with ngClass, except that the `.ng-hide`\n * CSS class is added and removed for you instead of your own CSS class.\n *\n * ```css\n * //\n * //a working example can be found at the bottom of this page\n * //\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition:0.5s linear all;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.2.17 (and 1.3.0-beta.11), there is no need to change the display\n * property to block during animation states--ngAnimate will handle the style toggling automatically for you.\n *\n * @animations\n * removeClass: `.ng-hide` - happens after the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden\n * addClass: `.ng-hide` - happens after the `ngHide` expression evaluates to a non truthy value and just before the contents are set to visible\n *\n * @element ANY\n * @param {expression} ngHide If the {@link guide/expression expression} is truthy then\n *     the element is shown or hidden respectively.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n      <div>\n        Show:\n        <div class=\"check-element animate-hide\" ng-show=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-up\"></span> I show up when your checkbox is checked.\n        </div>\n      </div>\n      <div>\n        Hide:\n        <div class=\"check-element animate-hide\" ng-hide=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-down\"></span> I hide when your checkbox is checked.\n        </div>\n      </div>\n    </file>\n    <file name=\"glyphicons.css\">\n      @import url(//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-glyphicons.css);\n    </file>\n    <file name=\"animations.css\">\n      .animate-hide {\n        -webkit-transition:all linear 0.5s;\n        transition:all linear 0.5s;\n        line-height:20px;\n        opacity:1;\n        padding:10px;\n        border:1px solid black;\n        background:white;\n      }\n\n      .animate-hide.ng-hide {\n        line-height:0;\n        opacity:0;\n        padding:0 10px;\n      }\n\n      .check-element {\n        padding:10px;\n        border:1px solid black;\n        background:white;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));\n      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));\n\n      it('should check ng-show / ng-hide', function() {\n        expect(thumbsUp.isDisplayed()).toBeFalsy();\n        expect(thumbsDown.isDisplayed()).toBeTruthy();\n\n        element(by.model('checked')).click();\n\n        expect(thumbsUp.isDisplayed()).toBeTruthy();\n        expect(thumbsDown.isDisplayed()).toBeFalsy();\n      });\n    </file>\n  </example>\n */\nvar ngHideDirective = ['$animate', function($animate) {\n  return function(scope, element, attr) {\n    scope.$watch(attr.ngHide, function ngHideWatchAction(value){\n      $animate[toBoolean(value) ? 'addClass' : 'removeClass'](element, 'ng-hide');\n    });\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngStyle\n * @restrict AC\n *\n * @description\n * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.\n *\n * @element ANY\n * @param {expression} ngStyle\n *\n * {@link guide/expression Expression} which evals to an\n * object whose keys are CSS style names and values are corresponding values for those CSS\n * keys.\n *\n * Since some CSS style names are not valid keys for an object, they must be quoted.\n * See the 'background-color' style in the example below.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <input type=\"button\" value=\"set color\" ng-click=\"myStyle={color:'red'}\">\n        <input type=\"button\" value=\"set background\" ng-click=\"myStyle={'background-color':'blue'}\">\n        <input type=\"button\" value=\"clear\" ng-click=\"myStyle={}\">\n        <br/>\n        <span ng-style=\"myStyle\">Sample Text</span>\n        <pre>myStyle={{myStyle}}</pre>\n     </file>\n     <file name=\"style.css\">\n       span {\n         color: black;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var colorSpan = element(by.css('span'));\n\n       it('should check ng-style', function() {\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n         element(by.css('input[value=\\'set color\\']')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');\n         element(by.css('input[value=clear]')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n       });\n     </file>\n   </example>\n */\nvar ngStyleDirective = ngDirective(function(scope, element, attr) {\n  scope.$watch(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {\n    if (oldStyles && (newStyles !== oldStyles)) {\n      forEach(oldStyles, function(val, style) { element.css(style, '');});\n    }\n    if (newStyles) element.css(newStyles);\n  }, true);\n});\n\n/**\n * @ngdoc directive\n * @name ngSwitch\n * @restrict EA\n *\n * @description\n * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.\n * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location\n * as specified in the template.\n *\n * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it\n * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element\n * matches the value obtained from the evaluated expression. In other words, you define a container element\n * (where you place the directive), place an expression on the **`on=\"...\"` attribute**\n * (or the **`ng-switch=\"...\"` attribute**), define any inner elements inside of the directive and place\n * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on\n * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default\n * attribute is displayed.\n *\n * <div class=\"alert alert-info\">\n * Be aware that the attribute values to match against cannot be expressions. They are interpreted\n * as literal string values to match against.\n * For example, **`ng-switch-when=\"someVal\"`** will match against the string `\"someVal\"` not against the\n * value of the expression `$scope.someVal`.\n * </div>\n\n * @animations\n * enter - happens after the ngSwitch contents change and the matched child element is placed inside the container\n * leave - happens just after the ngSwitch contents change and just before the former contents are removed from the DOM\n *\n * @usage\n *\n * ```\n * <ANY ng-switch=\"expression\">\n *   <ANY ng-switch-when=\"matchValue1\">...</ANY>\n *   <ANY ng-switch-when=\"matchValue2\">...</ANY>\n *   <ANY ng-switch-default>...</ANY>\n * </ANY>\n * ```\n *\n *\n * @scope\n * @priority 800\n * @param {*} ngSwitch|on expression to match against <tt>ng-switch-when</tt>.\n * On child elements add:\n *\n * * `ngSwitchWhen`: the case statement to match against. If match then this\n *   case will be displayed. If the same match appears multiple times, all the\n *   elements will be displayed.\n * * `ngSwitchDefault`: the default case when no other case match. If there\n *   are multiple default cases, all of them will be displayed when no other\n *   case match.\n *\n *\n * @example\n  <example module=\"switchExample\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <select ng-model=\"selection\" ng-options=\"item for item in items\">\n        </select>\n        <tt>selection={{selection}}</tt>\n        <hr/>\n        <div class=\"animate-switch-container\"\n          ng-switch on=\"selection\">\n            <div class=\"animate-switch\" ng-switch-when=\"settings\">Settings Div</div>\n            <div class=\"animate-switch\" ng-switch-when=\"home\">Home Span</div>\n            <div class=\"animate-switch\" ng-switch-default>default</div>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('switchExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.items = ['settings', 'home', 'other'];\n          $scope.selection = $scope.items[0];\n        }]);\n    </file>\n    <file name=\"animations.css\">\n      .animate-switch-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .animate-switch {\n        padding:10px;\n      }\n\n      .animate-switch.ng-animate {\n        -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n      }\n\n      .animate-switch.ng-leave.ng-leave-active,\n      .animate-switch.ng-enter {\n        top:-50px;\n      }\n      .animate-switch.ng-leave,\n      .animate-switch.ng-enter.ng-enter-active {\n        top:0;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var switchElem = element(by.css('[ng-switch]'));\n      var select = element(by.model('selection'));\n\n      it('should start in settings', function() {\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should change to home', function() {\n        select.all(by.css('option')).get(1).click();\n        expect(switchElem.getText()).toMatch(/Home Span/);\n      });\n      it('should select default', function() {\n        select.all(by.css('option')).get(2).click();\n        expect(switchElem.getText()).toMatch(/default/);\n      });\n    </file>\n  </example>\n */\nvar ngSwitchDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'EA',\n    require: 'ngSwitch',\n\n    // asks for $scope to fool the BC controller module\n    controller: ['$scope', function ngSwitchController() {\n     this.cases = {};\n    }],\n    link: function(scope, element, attr, ngSwitchController) {\n      var watchExpr = attr.ngSwitch || attr.on,\n          selectedTranscludes = [],\n          selectedElements = [],\n          previousElements = [],\n          selectedScopes = [];\n\n      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {\n        var i, ii;\n        for (i = 0, ii = previousElements.length; i < ii; ++i) {\n          previousElements[i].remove();\n        }\n        previousElements.length = 0;\n\n        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {\n          var selected = selectedElements[i];\n          selectedScopes[i].$destroy();\n          previousElements[i] = selected;\n          $animate.leave(selected, function() {\n            previousElements.splice(i, 1);\n          });\n        }\n\n        selectedElements.length = 0;\n        selectedScopes.length = 0;\n\n        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {\n          scope.$eval(attr.change);\n          forEach(selectedTranscludes, function(selectedTransclude) {\n            var selectedScope = scope.$new();\n            selectedScopes.push(selectedScope);\n            selectedTransclude.transclude(selectedScope, function(caseElement) {\n              var anchor = selectedTransclude.element;\n\n              selectedElements.push(caseElement);\n              $animate.enter(caseElement, anchor.parent(), anchor);\n            });\n          });\n        }\n      });\n    }\n  };\n}];\n\nvar ngSwitchWhenDirective = ngDirective({\n  transclude: 'element',\n  priority: 800,\n  require: '^ngSwitch',\n  link: function(scope, element, attrs, ctrl, $transclude) {\n    ctrl.cases['!' + attrs.ngSwitchWhen] = (ctrl.cases['!' + attrs.ngSwitchWhen] || []);\n    ctrl.cases['!' + attrs.ngSwitchWhen].push({ transclude: $transclude, element: element });\n  }\n});\n\nvar ngSwitchDefaultDirective = ngDirective({\n  transclude: 'element',\n  priority: 800,\n  require: '^ngSwitch',\n  link: function(scope, element, attr, ctrl, $transclude) {\n    ctrl.cases['?'] = (ctrl.cases['?'] || []);\n    ctrl.cases['?'].push({ transclude: $transclude, element: element });\n   }\n});\n\n/**\n * @ngdoc directive\n * @name ngTransclude\n * @restrict AC\n *\n * @description\n * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.\n *\n * Any existing content of the element that this directive is placed on will be removed before the transcluded content is inserted.\n *\n * @element ANY\n *\n * @example\n   <example module=\"transcludeExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('transcludeExample', [])\n          .directive('pane', function(){\n             return {\n               restrict: 'E',\n               transclude: true,\n               scope: { title:'@' },\n               template: '<div style=\"border: 1px solid black;\">' +\n                           '<div style=\"background-color: gray\">{{title}}</div>' +\n                           '<div ng-transclude></div>' +\n                         '</div>'\n             };\n         })\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.title = 'Lorem Ipsum';\n           $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n         }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input ng-model=\"title\"><br>\n         <textarea ng-model=\"text\"></textarea> <br/>\n         <pane title=\"{{title}}\">{{text}}</pane>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        it('should have transcluded', function() {\n          var titleElement = element(by.model('title'));\n          titleElement.clear();\n          titleElement.sendKeys('TITLE');\n          var textElement = element(by.model('text'));\n          textElement.clear();\n          textElement.sendKeys('TEXT');\n          expect(element(by.binding('title')).getText()).toEqual('TITLE');\n          expect(element(by.binding('text')).getText()).toEqual('TEXT');\n        });\n     </file>\n   </example>\n *\n */\nvar ngTranscludeDirective = ngDirective({\n  link: function($scope, $element, $attrs, controller, $transclude) {\n    if (!$transclude) {\n      throw minErr('ngTransclude')('orphan',\n       'Illegal use of ngTransclude directive in the template! ' +\n       'No parent directive that requires a transclusion found. ' +\n       'Element: {0}',\n       startingTag($element));\n    }\n\n    $transclude(function(clone) {\n      $element.empty();\n      $element.append(clone);\n    });\n  }\n});\n\n/**\n * @ngdoc directive\n * @name script\n * @restrict E\n *\n * @description\n * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the\n * template can be used by {@link ng.directive:ngInclude `ngInclude`},\n * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the\n * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be\n * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.\n *\n * @param {string} type Must be set to `'text/ng-template'`.\n * @param {string} id Cache name of the template.\n *\n * @example\n  <example>\n    <file name=\"index.html\">\n      <script type=\"text/ng-template\" id=\"/tpl.html\">\n        Content of the template.\n      </script>\n\n      <a ng-click=\"currentTpl='/tpl.html'\" id=\"tpl-link\">Load inlined template</a>\n      <div id=\"tpl-content\" ng-include src=\"currentTpl\"></div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should load template defined inside script tag', function() {\n        element(by.css('#tpl-link')).click();\n        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);\n      });\n    </file>\n  </example>\n */\nvar scriptDirective = ['$templateCache', function($templateCache) {\n  return {\n    restrict: 'E',\n    terminal: true,\n    compile: function(element, attr) {\n      if (attr.type == 'text/ng-template') {\n        var templateUrl = attr.id,\n            text = element[0].text;\n\n        $templateCache.put(templateUrl, text);\n      }\n    }\n  };\n}];\n\nvar ngOptionsMinErr = minErr('ngOptions');\n/**\n * @ngdoc directive\n * @name select\n * @restrict E\n *\n * @description\n * HTML `SELECT` element with angular data-binding.\n *\n * # `ngOptions`\n *\n * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`\n * elements for the `<select>` element using the array or object obtained by evaluating the\n * `ngOptions` comprehension_expression.\n *\n * When an item in the `<select>` menu is selected, the array element or object property\n * represented by the selected option will be bound to the model identified by the `ngModel`\n * directive.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** `ngModel` compares by reference, not value. This is important when binding to an\n * array of objects. See an example [in this jsfiddle](http://jsfiddle.net/qWzTb/).\n * </div>\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** `ngOptions` provides an iterator facility for the `<option>` element which should be used instead\n * of {@link ng.directive:ngRepeat ngRepeat} when you want the\n * `select` model to be bound to a non-string value. This is because an option element can only\n * be bound to string values at present.\n * </div>\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required The control is considered valid only if value is entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {comprehension_expression=} ngOptions in one of the following forms:\n *\n *   * for array data sources:\n *     * `label` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`\n *     * `label`  **`group by`** `group` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *   * for object data sources:\n *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`group by`** `group`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *\n * Where:\n *\n *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.\n *   * `value`: local variable which will refer to each item in the `array` or each property value\n *      of `object` during iteration.\n *   * `key`: local variable which will refer to a property name in `object` during iteration.\n *   * `label`: The result of this expression will be the label for `<option>` element. The\n *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).\n *   * `select`: The result of this expression will be bound to the model of the parent `<select>`\n *      element. If not specified, `select` expression will default to `value`.\n *   * `group`: The result of this expression will be used to group options using the `<optgroup>`\n *      DOM element.\n *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be\n *      used to identify the objects in the array. The `trackexpr` will most likely refer to the\n *     `value` variable (e.g. `value.propertyName`).\n *\n * @example\n    <example module=\"selectExample\">\n      <file name=\"index.html\">\n        <script>\n        angular.module('selectExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.colors = [\n              {name:'black', shade:'dark'},\n              {name:'white', shade:'light'},\n              {name:'red', shade:'dark'},\n              {name:'blue', shade:'dark'},\n              {name:'yellow', shade:'light'}\n            ];\n            $scope.myColor = $scope.colors[2]; // red\n          }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <ul>\n            <li ng-repeat=\"color in colors\">\n              Name: <input ng-model=\"color.name\">\n              [<a href ng-click=\"colors.splice($index, 1)\">X</a>]\n            </li>\n            <li>\n              [<a href ng-click=\"colors.push({})\">add</a>]\n            </li>\n          </ul>\n          <hr/>\n          Color (null not allowed):\n          <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\"></select><br>\n\n          Color (null allowed):\n          <span  class=\"nullable\">\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\">\n              <option value=\"\">-- choose color --</option>\n            </select>\n          </span><br/>\n\n          Color grouped by shade:\n          <select ng-model=\"myColor\" ng-options=\"color.name group by color.shade for color in colors\">\n          </select><br/>\n\n\n          Select <a href ng-click=\"myColor = { name:'not in list', shade: 'other' }\">bogus</a>.<br>\n          <hr/>\n          Currently selected: {{ {selected_color:myColor}  }}\n          <div style=\"border:solid 1px black; height:20px\"\n               ng-style=\"{'background-color':myColor.name}\">\n          </div>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n         it('should check ng-options', function() {\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');\n           element.all(by.model('myColor')).first().click();\n           element.all(by.css('select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');\n           element(by.css('.nullable select[ng-model=\"myColor\"]')).click();\n           element.all(by.css('.nullable select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');\n         });\n      </file>\n    </example>\n */\n\nvar ngOptionsDirective = valueFn({ terminal: true });\n// jshint maxlen: false\nvar selectDirective = ['$compile', '$parse', function($compile,   $parse) {\n                         //000011111111110000000000022222222220000000000000000000003333333333000000000000004444444444444440000000005555555555555550000000666666666666666000000000000000777777777700000000000000000008888888888\n  var NG_OPTIONS_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+group\\s+by\\s+([\\s\\S]+?))?\\s+for\\s+(?:([\\$\\w][\\$\\w]*)|(?:\\(\\s*([\\$\\w][\\$\\w]*)\\s*,\\s*([\\$\\w][\\$\\w]*)\\s*\\)))\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?$/,\n      nullModelCtrl = {$setViewValue: noop};\n// jshint maxlen: 100\n\n  return {\n    restrict: 'E',\n    require: ['select', '?ngModel'],\n    controller: ['$element', '$scope', '$attrs', function($element, $scope, $attrs) {\n      var self = this,\n          optionsMap = {},\n          ngModelCtrl = nullModelCtrl,\n          nullOption,\n          unknownOption;\n\n\n      self.databound = $attrs.ngModel;\n\n\n      self.init = function(ngModelCtrl_, nullOption_, unknownOption_) {\n        ngModelCtrl = ngModelCtrl_;\n        nullOption = nullOption_;\n        unknownOption = unknownOption_;\n      };\n\n\n      self.addOption = function(value) {\n        assertNotHasOwnProperty(value, '\"option value\"');\n        optionsMap[value] = true;\n\n        if (ngModelCtrl.$viewValue == value) {\n          $element.val(value);\n          if (unknownOption.parent()) unknownOption.remove();\n        }\n      };\n\n\n      self.removeOption = function(value) {\n        if (this.hasOption(value)) {\n          delete optionsMap[value];\n          if (ngModelCtrl.$viewValue == value) {\n            this.renderUnknownOption(value);\n          }\n        }\n      };\n\n\n      self.renderUnknownOption = function(val) {\n        var unknownVal = '? ' + hashKey(val) + ' ?';\n        unknownOption.val(unknownVal);\n        $element.prepend(unknownOption);\n        $element.val(unknownVal);\n        unknownOption.prop('selected', true); // needed for IE\n      };\n\n\n      self.hasOption = function(value) {\n        return optionsMap.hasOwnProperty(value);\n      };\n\n      $scope.$on('$destroy', function() {\n        // disable unknown option so that we don't do work when the whole select is being destroyed\n        self.renderUnknownOption = noop;\n      });\n    }],\n\n    link: function(scope, element, attr, ctrls) {\n      // if ngModel is not defined, we don't need to do anything\n      if (!ctrls[1]) return;\n\n      var selectCtrl = ctrls[0],\n          ngModelCtrl = ctrls[1],\n          multiple = attr.multiple,\n          optionsExp = attr.ngOptions,\n          nullOption = false, // if false, user will not be able to select it (used by ngOptions)\n          emptyOption,\n          // we can't just jqLite('<option>') since jqLite is not smart enough\n          // to create it in <select> and IE barfs otherwise.\n          optionTemplate = jqLite(document.createElement('option')),\n          optGroupTemplate =jqLite(document.createElement('optgroup')),\n          unknownOption = optionTemplate.clone();\n\n      // find \"null\" option\n      for(var i = 0, children = element.children(), ii = children.length; i < ii; i++) {\n        if (children[i].value === '') {\n          emptyOption = nullOption = children.eq(i);\n          break;\n        }\n      }\n\n      selectCtrl.init(ngModelCtrl, nullOption, unknownOption);\n\n      // required validator\n      if (multiple) {\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n      }\n\n      if (optionsExp) setupAsOptions(scope, element, ngModelCtrl);\n      else if (multiple) setupAsMultiple(scope, element, ngModelCtrl);\n      else setupAsSingle(scope, element, ngModelCtrl, selectCtrl);\n\n\n      ////////////////////////////\n\n\n\n      function setupAsSingle(scope, selectElement, ngModelCtrl, selectCtrl) {\n        ngModelCtrl.$render = function() {\n          var viewValue = ngModelCtrl.$viewValue;\n\n          if (selectCtrl.hasOption(viewValue)) {\n            if (unknownOption.parent()) unknownOption.remove();\n            selectElement.val(viewValue);\n            if (viewValue === '') emptyOption.prop('selected', true); // to make IE9 happy\n          } else {\n            if (isUndefined(viewValue) && emptyOption) {\n              selectElement.val('');\n            } else {\n              selectCtrl.renderUnknownOption(viewValue);\n            }\n          }\n        };\n\n        selectElement.on('change', function() {\n          scope.$apply(function() {\n            if (unknownOption.parent()) unknownOption.remove();\n            ngModelCtrl.$setViewValue(selectElement.val());\n          });\n        });\n      }\n\n      function setupAsMultiple(scope, selectElement, ctrl) {\n        var lastView;\n        ctrl.$render = function() {\n          var items = new HashMap(ctrl.$viewValue);\n          forEach(selectElement.find('option'), function(option) {\n            option.selected = isDefined(items.get(option.value));\n          });\n        };\n\n        // we have to do it on each watch since ngModel watches reference, but\n        // we need to work of an array, so we need to see if anything was inserted/removed\n        scope.$watch(function selectMultipleWatch() {\n          if (!equals(lastView, ctrl.$viewValue)) {\n            lastView = shallowCopy(ctrl.$viewValue);\n            ctrl.$render();\n          }\n        });\n\n        selectElement.on('change', function() {\n          scope.$apply(function() {\n            var array = [];\n            forEach(selectElement.find('option'), function(option) {\n              if (option.selected) {\n                array.push(option.value);\n              }\n            });\n            ctrl.$setViewValue(array);\n          });\n        });\n      }\n\n      function setupAsOptions(scope, selectElement, ctrl) {\n        var match;\n\n        if (!(match = optionsExp.match(NG_OPTIONS_REGEXP))) {\n          throw ngOptionsMinErr('iexp',\n            \"Expected expression in form of \" +\n            \"'_select_ (as _label_)? for (_key_,)?_value_ in _collection_'\" +\n            \" but got '{0}'. Element: {1}\",\n            optionsExp, startingTag(selectElement));\n        }\n\n        var displayFn = $parse(match[2] || match[1]),\n            valueName = match[4] || match[6],\n            keyName = match[5],\n            groupByFn = $parse(match[3] || ''),\n            valueFn = $parse(match[2] ? match[1] : valueName),\n            valuesFn = $parse(match[7]),\n            track = match[8],\n            trackFn = track ? $parse(match[8]) : null,\n            // This is an array of array of existing option groups in DOM.\n            // We try to reuse these if possible\n            // - optionGroupsCache[0] is the options with no option group\n            // - optionGroupsCache[?][0] is the parent: either the SELECT or OPTGROUP element\n            optionGroupsCache = [[{element: selectElement, label:''}]];\n\n        if (nullOption) {\n          // compile the element since there might be bindings in it\n          $compile(nullOption)(scope);\n\n          // remove the class, which is added automatically because we recompile the element and it\n          // becomes the compilation root\n          nullOption.removeClass('ng-scope');\n\n          // we need to remove it before calling selectElement.empty() because otherwise IE will\n          // remove the label from the element. wtf?\n          nullOption.remove();\n        }\n\n        // clear contents, we'll add what's needed based on the model\n        selectElement.empty();\n\n        selectElement.on('change', function() {\n          scope.$apply(function() {\n            var optionGroup,\n                collection = valuesFn(scope) || [],\n                locals = {},\n                key, value, optionElement, index, groupIndex, length, groupLength, trackIndex;\n\n            if (multiple) {\n              value = [];\n              for (groupIndex = 0, groupLength = optionGroupsCache.length;\n                   groupIndex < groupLength;\n                   groupIndex++) {\n                // list of options for that group. (first item has the parent)\n                optionGroup = optionGroupsCache[groupIndex];\n\n                for(index = 1, length = optionGroup.length; index < length; index++) {\n                  if ((optionElement = optionGroup[index].element)[0].selected) {\n                    key = optionElement.val();\n                    if (keyName) locals[keyName] = key;\n                    if (trackFn) {\n                      for (trackIndex = 0; trackIndex < collection.length; trackIndex++) {\n                        locals[valueName] = collection[trackIndex];\n                        if (trackFn(scope, locals) == key) break;\n                      }\n                    } else {\n                      locals[valueName] = collection[key];\n                    }\n                    value.push(valueFn(scope, locals));\n                  }\n                }\n              }\n            } else {\n              key = selectElement.val();\n              if (key == '?') {\n                value = undefined;\n              } else if (key === ''){\n                value = null;\n              } else {\n                if (trackFn) {\n                  for (trackIndex = 0; trackIndex < collection.length; trackIndex++) {\n                    locals[valueName] = collection[trackIndex];\n                    if (trackFn(scope, locals) == key) {\n                      value = valueFn(scope, locals);\n                      break;\n                    }\n                  }\n                } else {\n                  locals[valueName] = collection[key];\n                  if (keyName) locals[keyName] = key;\n                  value = valueFn(scope, locals);\n                }\n              }\n            }\n            ctrl.$setViewValue(value);\n            render();\n          });\n        });\n\n        ctrl.$render = render;\n\n        scope.$watchCollection(valuesFn, render);\n        scope.$watchCollection(function () {\n          var locals = {},\n              values = valuesFn(scope);\n          if (values) {\n            var toDisplay = new Array(values.length);\n            for (var i = 0, ii = values.length; i < ii; i++) {\n              locals[valueName] = values[i];\n              toDisplay[i] = displayFn(scope, locals);\n            }\n            return toDisplay;\n          }\n        }, render);\n\n        if ( multiple ) {\n          scope.$watchCollection(function() { return ctrl.$modelValue; }, render);\n        }\n\n        function getSelectedSet() {\n          var selectedSet = false;\n          if (multiple) {\n            var modelValue = ctrl.$modelValue;\n            if (trackFn && isArray(modelValue)) {\n              selectedSet = new HashMap([]);\n              var locals = {};\n              for (var trackIndex = 0; trackIndex < modelValue.length; trackIndex++) {\n                locals[valueName] = modelValue[trackIndex];\n                selectedSet.put(trackFn(scope, locals), modelValue[trackIndex]);\n              }\n            } else {\n              selectedSet = new HashMap(modelValue);\n            }\n          }\n          return selectedSet;\n        }\n\n\n        function render() {\n              // Temporary location for the option groups before we render them\n          var optionGroups = {'':[]},\n              optionGroupNames = [''],\n              optionGroupName,\n              optionGroup,\n              option,\n              existingParent, existingOptions, existingOption,\n              modelValue = ctrl.$modelValue,\n              values = valuesFn(scope) || [],\n              keys = keyName ? sortedKeys(values) : values,\n              key,\n              groupLength, length,\n              groupIndex, index,\n              locals = {},\n              selected,\n              selectedSet = getSelectedSet(),\n              lastElement,\n              element,\n              label;\n\n\n          // We now build up the list of options we need (we merge later)\n          for (index = 0; length = keys.length, index < length; index++) {\n\n            key = index;\n            if (keyName) {\n              key = keys[index];\n              if ( key.charAt(0) === '$' ) continue;\n              locals[keyName] = key;\n            }\n\n            locals[valueName] = values[key];\n\n            optionGroupName = groupByFn(scope, locals) || '';\n            if (!(optionGroup = optionGroups[optionGroupName])) {\n              optionGroup = optionGroups[optionGroupName] = [];\n              optionGroupNames.push(optionGroupName);\n            }\n            if (multiple) {\n              selected = isDefined(\n                selectedSet.remove(trackFn ? trackFn(scope, locals) : valueFn(scope, locals))\n              );\n            } else {\n              if (trackFn) {\n                var modelCast = {};\n                modelCast[valueName] = modelValue;\n                selected = trackFn(scope, modelCast) === trackFn(scope, locals);\n              } else {\n                selected = modelValue === valueFn(scope, locals);\n              }\n              selectedSet = selectedSet || selected; // see if at least one item is selected\n            }\n            label = displayFn(scope, locals); // what will be seen by the user\n\n            // doing displayFn(scope, locals) || '' overwrites zero values\n            label = isDefined(label) ? label : '';\n            optionGroup.push({\n              // either the index into array or key from object\n              id: trackFn ? trackFn(scope, locals) : (keyName ? keys[index] : index),\n              label: label,\n              selected: selected                   // determine if we should be selected\n            });\n          }\n          if (!multiple) {\n            if (nullOption || modelValue === null) {\n              // insert null option if we have a placeholder, or the model is null\n              optionGroups[''].unshift({id:'', label:'', selected:!selectedSet});\n            } else if (!selectedSet) {\n              // option could not be found, we have to insert the undefined item\n              optionGroups[''].unshift({id:'?', label:'', selected:true});\n            }\n          }\n\n          // Now we need to update the list of DOM nodes to match the optionGroups we computed above\n          for (groupIndex = 0, groupLength = optionGroupNames.length;\n               groupIndex < groupLength;\n               groupIndex++) {\n            // current option group name or '' if no group\n            optionGroupName = optionGroupNames[groupIndex];\n\n            // list of options for that group. (first item has the parent)\n            optionGroup = optionGroups[optionGroupName];\n\n            if (optionGroupsCache.length <= groupIndex) {\n              // we need to grow the optionGroups\n              existingParent = {\n                element: optGroupTemplate.clone().attr('label', optionGroupName),\n                label: optionGroup.label\n              };\n              existingOptions = [existingParent];\n              optionGroupsCache.push(existingOptions);\n              selectElement.append(existingParent.element);\n            } else {\n              existingOptions = optionGroupsCache[groupIndex];\n              existingParent = existingOptions[0];  // either SELECT (no group) or OPTGROUP element\n\n              // update the OPTGROUP label if not the same.\n              if (existingParent.label != optionGroupName) {\n                existingParent.element.attr('label', existingParent.label = optionGroupName);\n              }\n            }\n\n            lastElement = null;  // start at the beginning\n            for(index = 0, length = optionGroup.length; index < length; index++) {\n              option = optionGroup[index];\n              if ((existingOption = existingOptions[index+1])) {\n                // reuse elements\n                lastElement = existingOption.element;\n                if (existingOption.label !== option.label) {\n                  lastElement.text(existingOption.label = option.label);\n                  lastElement.prop('label', existingOption.label);\n                }\n                if (existingOption.id !== option.id) {\n                  lastElement.val(existingOption.id = option.id);\n                }\n                // lastElement.prop('selected') provided by jQuery has side-effects\n                if (lastElement[0].selected !== option.selected) {\n                  lastElement.prop('selected', (existingOption.selected = option.selected));\n                  if (msie) {\n                    // See #7692\n                    // The selected item wouldn't visually update on IE without this.\n                    // Tested on Win7: IE9, IE10 and IE11. Future IEs should be tested as well\n                    lastElement.prop('selected', existingOption.selected);\n                  }\n                }\n              } else {\n                // grow elements\n\n                // if it's a null option\n                if (option.id === '' && nullOption) {\n                  // put back the pre-compiled element\n                  element = nullOption;\n                } else {\n                  // jQuery(v1.4.2) Bug: We should be able to chain the method calls, but\n                  // in this version of jQuery on some browser the .text() returns a string\n                  // rather then the element.\n                  (element = optionTemplate.clone())\n                      .val(option.id)\n                      .prop('selected', option.selected)\n                      .attr('selected', option.selected)\n                      .prop('label', option.label)\n                      .text(option.label);\n                }\n\n                existingOptions.push(existingOption = {\n                    element: element,\n                    label: option.label,\n                    id: option.id,\n                    selected: option.selected\n                });\n                selectCtrl.addOption(option.label, element);\n                if (lastElement) {\n                  lastElement.after(element);\n                } else {\n                  existingParent.element.append(element);\n                }\n                lastElement = element;\n              }\n            }\n            // remove any excessive OPTIONs in a group\n            index++; // increment since the existingOptions[0] is parent element not OPTION\n            while(existingOptions.length > index) {\n              option = existingOptions.pop();\n              selectCtrl.removeOption(option.label);\n              option.element.remove();\n            }\n          }\n          // remove any excessive OPTGROUPs from select\n          while(optionGroupsCache.length > groupIndex) {\n            optionGroupsCache.pop()[0].element.remove();\n          }\n        }\n      }\n    }\n  };\n}];\n\nvar optionDirective = ['$interpolate', function($interpolate) {\n  var nullSelectCtrl = {\n    addOption: noop,\n    removeOption: noop\n  };\n\n  return {\n    restrict: 'E',\n    priority: 100,\n    compile: function(element, attr) {\n      if (isUndefined(attr.value)) {\n        var interpolateFn = $interpolate(element.text(), true);\n        if (!interpolateFn) {\n          attr.$set('value', element.text());\n        }\n      }\n\n      return function (scope, element, attr) {\n        var selectCtrlName = '$selectController',\n            parent = element.parent(),\n            selectCtrl = parent.data(selectCtrlName) ||\n              parent.parent().data(selectCtrlName); // in case we are in optgroup\n\n        if (selectCtrl && selectCtrl.databound) {\n          // For some reason Opera defaults to true and if not overridden this messes up the repeater.\n          // We don't want the view to drive the initialization of the model anyway.\n          element.prop('selected', false);\n        } else {\n          selectCtrl = nullSelectCtrl;\n        }\n\n        if (interpolateFn) {\n          scope.$watch(interpolateFn, function interpolateWatchAction(newVal, oldVal) {\n            attr.$set('value', newVal);\n            if (newVal !== oldVal) selectCtrl.removeOption(oldVal);\n            selectCtrl.addOption(newVal);\n          });\n        } else {\n          selectCtrl.addOption(attr.value);\n        }\n\n        element.on('$destroy', function() {\n          selectCtrl.removeOption(attr.value);\n        });\n      };\n    }\n  };\n}];\n\nvar styleDirective = valueFn({\n  restrict: 'E',\n  terminal: true\n});\n\n  if (window.angular.bootstrap) {\n    //AngularJS is already loaded, so we can return here...\n    console.log('WARNING: Tried to load angular more than once.');\n    return;\n  }\n\n  //try to bind to jquery now so that one can write angular.element().read()\n  //but we will rebind on bootstrap again.\n  bindJQuery();\n\n  publishExternalAPI(angular);\n\n  jqLite(document).ready(function() {\n    angularInit(document, bootstrap);\n  });\n\n})(window, document);\n\n!window.angular.$$csp() && window.angular.element(document).find('head').prepend('<style type=\"text/css\">@charset \"UTF-8\";[ng\\\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide{display:none !important;}ng\\\\:form{display:block;}.ng-animate-block-transitions{transition:0s all!important;-webkit-transition:0s all!important;}.ng-hide-add-active,.ng-hide-remove{display:block!important;}</style>');"
  },
  {
    "path": "test/angular/1.3/angular-animate.js",
    "content": "/**\n * @license AngularJS v1.3.20\n * (c) 2010-2014 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular, undefined) {'use strict';\n\n/* jshint maxlen: false */\n\n/**\n * @ngdoc module\n * @name ngAnimate\n * @description\n *\n * The `ngAnimate` module provides support for JavaScript, CSS3 transition and CSS3 keyframe animation hooks within existing core and custom directives.\n *\n * <div doc-module-components=\"ngAnimate\"></div>\n *\n * # Usage\n *\n * To see animations in action, all that is required is to define the appropriate CSS classes\n * or to register a JavaScript animation via the `myModule.animation()` function. The directives that support animation automatically are:\n * `ngRepeat`, `ngInclude`, `ngIf`, `ngSwitch`, `ngShow`, `ngHide`, `ngView` and `ngClass`. Custom directives can take advantage of animation\n * by using the `$animate` service.\n *\n * Below is a more detailed breakdown of the supported animation events provided by pre-existing ng directives:\n *\n * | Directive                                                                                                | Supported Animations                                                     |\n * |----------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------|\n * | {@link ng.directive:ngRepeat#animations ngRepeat}                                                        | enter, leave and move                                                    |\n * | {@link ngRoute.directive:ngView#animations ngView}                                                       | enter and leave                                                          |\n * | {@link ng.directive:ngInclude#animations ngInclude}                                                      | enter and leave                                                          |\n * | {@link ng.directive:ngSwitch#animations ngSwitch}                                                        | enter and leave                                                          |\n * | {@link ng.directive:ngIf#animations ngIf}                                                                | enter and leave                                                          |\n * | {@link ng.directive:ngClass#animations ngClass}                                                          | add and remove (the CSS class(es) present)                               |\n * | {@link ng.directive:ngShow#animations ngShow} & {@link ng.directive:ngHide#animations ngHide}            | add and remove (the ng-hide class value)                                 |\n * | {@link ng.directive:form#animation-hooks form} & {@link ng.directive:ngModel#animation-hooks ngModel}    | add and remove (dirty, pristine, valid, invalid & all other validations) |\n * | {@link module:ngMessages#animations ngMessages}                                                          | add and remove (ng-active & ng-inactive)                                 |\n * | {@link module:ngMessages#animations ngMessage}                                                           | enter and leave                                                          |\n *\n * You can find out more information about animations upon visiting each directive page.\n *\n * Below is an example of how to apply animations to a directive that supports animation hooks:\n *\n * ```html\n * <style type=\"text/css\">\n * .slide.ng-enter, .slide.ng-leave {\n *   -webkit-transition:0.5s linear all;\n *   transition:0.5s linear all;\n * }\n *\n * .slide.ng-enter { }        /&#42; starting animations for enter &#42;/\n * .slide.ng-enter.ng-enter-active { } /&#42; terminal animations for enter &#42;/\n * .slide.ng-leave { }        /&#42; starting animations for leave &#42;/\n * .slide.ng-leave.ng-leave-active { } /&#42; terminal animations for leave &#42;/\n * </style>\n *\n * <!--\n * the animate service will automatically add .ng-enter and .ng-leave to the element\n * to trigger the CSS transition/animations\n * -->\n * <ANY class=\"slide\" ng-include=\"...\"></ANY>\n * ```\n *\n * Keep in mind that, by default, if an animation is running, any child elements cannot be animated\n * until the parent element's animation has completed. This blocking feature can be overridden by\n * placing the `ng-animate-children` attribute on a parent container tag.\n *\n * ```html\n * <div class=\"slide-animation\" ng-if=\"on\" ng-animate-children>\n *   <div class=\"fade-animation\" ng-if=\"on\">\n *     <div class=\"explode-animation\" ng-if=\"on\">\n *        ...\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * When the `on` expression value changes and an animation is triggered then each of the elements within\n * will all animate without the block being applied to child elements.\n *\n * ## Are animations run when the application starts?\n * No they are not. When an application is bootstrapped Angular will disable animations from running to avoid\n * a frenzy of animations from being triggered as soon as the browser has rendered the screen. For this to work,\n * Angular will wait for two digest cycles until enabling animations. From there on, any animation-triggering\n * layout changes in the application will trigger animations as normal.\n *\n * In addition, upon bootstrap, if the routing system or any directives or load remote data (via $http) then Angular\n * will automatically extend the wait time to enable animations once **all** of the outbound HTTP requests\n * are complete.\n *\n * ## CSS-defined Animations\n * The animate service will automatically apply two CSS classes to the animated element and these two CSS classes\n * are designed to contain the start and end CSS styling. Both CSS transitions and keyframe animations are supported\n * and can be used to play along with this naming structure.\n *\n * The following code below demonstrates how to perform animations using **CSS transitions** with Angular:\n *\n * ```html\n * <style type=\"text/css\">\n * /&#42;\n *  The animate class is apart of the element and the ng-enter class\n *  is attached to the element once the enter animation event is triggered\n * &#42;/\n * .reveal-animation.ng-enter {\n *  -webkit-transition: 1s linear all; /&#42; Safari/Chrome &#42;/\n *  transition: 1s linear all; /&#42; All other modern browsers and IE10+ &#42;/\n *\n *  /&#42; The animation preparation code &#42;/\n *  opacity: 0;\n * }\n *\n * /&#42;\n *  Keep in mind that you want to combine both CSS\n *  classes together to avoid any CSS-specificity\n *  conflicts\n * &#42;/\n * .reveal-animation.ng-enter.ng-enter-active {\n *  /&#42; The animation code itself &#42;/\n *  opacity: 1;\n * }\n * </style>\n *\n * <div class=\"view-container\">\n *   <div ng-view class=\"reveal-animation\"></div>\n * </div>\n * ```\n *\n * The following code below demonstrates how to perform animations using **CSS animations** with Angular:\n *\n * ```html\n * <style type=\"text/css\">\n * .reveal-animation.ng-enter {\n *   -webkit-animation: enter_sequence 1s linear; /&#42; Safari/Chrome &#42;/\n *   animation: enter_sequence 1s linear; /&#42; IE10+ and Future Browsers &#42;/\n * }\n * @-webkit-keyframes enter_sequence {\n *   from { opacity:0; }\n *   to { opacity:1; }\n * }\n * @keyframes enter_sequence {\n *   from { opacity:0; }\n *   to { opacity:1; }\n * }\n * </style>\n *\n * <div class=\"view-container\">\n *   <div ng-view class=\"reveal-animation\"></div>\n * </div>\n * ```\n *\n * Both CSS3 animations and transitions can be used together and the animate service will figure out the correct duration and delay timing.\n *\n * Upon DOM mutation, the event class is added first (something like `ng-enter`), then the browser prepares itself to add\n * the active class (in this case `ng-enter-active`) which then triggers the animation. The animation module will automatically\n * detect the CSS code to determine when the animation ends. Once the animation is over then both CSS classes will be\n * removed from the DOM. If a browser does not support CSS transitions or CSS animations then the animation will start and end\n * immediately resulting in a DOM element that is at its final state. This final state is when the DOM element\n * has no CSS transition/animation classes applied to it.\n *\n * ### Structural transition animations\n *\n * Structural transitions (such as enter, leave and move) will always apply a `0s none` transition\n * value to force the browser into rendering the styles defined in the setup (`.ng-enter`, `.ng-leave`\n * or `.ng-move`) class. This means that any active transition animations operating on the element\n * will be cut off to make way for the enter, leave or move animation.\n *\n * ### Class-based transition animations\n *\n * Class-based transitions refer to transition animations that are triggered when a CSS class is\n * added to or removed from the element (via `$animate.addClass`, `$animate.removeClass`,\n * `$animate.setClass`, or by directives such as `ngClass`, `ngModel` and `form`).\n * They are different when compared to structural animations since they **do not cancel existing\n * animations** nor do they **block successive transitions** from rendering on the same element.\n * This distinction allows for **multiple class-based transitions** to be performed on the same element.\n *\n * In addition to ngAnimate supporting the default (natural) functionality of class-based transition\n * animations, ngAnimate also decorates the element with starting and ending CSS classes to aid the\n * developer in further styling the element throughout the transition animation. Earlier versions\n * of ngAnimate may have caused natural CSS transitions to break and not render properly due to\n * $animate temporarily blocking transitions using `0s none` in order to allow the setup CSS class\n * (the `-add` or `-remove` class) to be applied without triggering an animation. However, as of\n * **version 1.3**, this workaround has been removed with ngAnimate and all non-ngAnimate CSS\n * class transitions are compatible with ngAnimate.\n *\n * There is, however, one special case when dealing with class-based transitions in ngAnimate.\n * When rendering class-based transitions that make use of the setup and active CSS classes\n * (e.g. `.fade-add` and `.fade-add-active` for when `.fade` is added) be sure to define\n * the transition value **on the active CSS class** and not the setup class.\n *\n * ```css\n * .fade-add {\n *   /&#42; remember to place a 0s transition here\n *      to ensure that the styles are applied instantly\n *      even if the element already has a transition style &#42;/\n *   transition:0s linear all;\n *\n *   /&#42; starting CSS styles &#42;/\n *   opacity:1;\n * }\n * .fade-add.fade-add-active {\n *   /&#42; this will be the length of the animation &#42;/\n *   transition:1s linear all;\n *   opacity:0;\n * }\n * ```\n *\n * The setup CSS class (in this case `.fade-add`) also has a transition style property, however, it\n * has a duration of zero. This may not be required, however, incase the browser is unable to render\n * the styling present in this CSS class instantly then it could be that the browser is attempting\n * to perform an unnecessary transition.\n *\n * This workaround, however, does not apply to  standard class-based transitions that are rendered\n * when a CSS class containing a transition is applied to an element:\n *\n * ```css\n * /&#42; this works as expected &#42;/\n * .fade {\n *   transition:1s linear all;\n *   opacity:0;\n * }\n * ```\n *\n * Please keep this in mind when coding the CSS markup that will be used within class-based transitions.\n * Also, try not to mix the two class-based animation flavors together since the CSS code may become\n * overly complex.\n *\n *\n * ### Preventing Collisions With Third Party Libraries\n *\n * Some third-party frameworks place animation duration defaults across many element or className\n * selectors in order to make their code small and reuseable. This can lead to issues with ngAnimate, which\n * is expecting actual animations on these elements and has to wait for their completion.\n *\n * You can prevent this unwanted behavior by using a prefix on all your animation classes:\n *\n * ```css\n * /&#42; prefixed with animate- &#42;/\n * .animate-fade-add.animate-fade-add-active {\n *   transition:1s linear all;\n *   opacity:0;\n * }\n * ```\n *\n * You then configure `$animate` to enforce this prefix:\n *\n * ```js\n * $animateProvider.classNameFilter(/animate-/);\n * ```\n * </div>\n *\n * ### CSS Staggering Animations\n * A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a\n * curtain-like effect. The ngAnimate module (versions >=1.2) supports staggering animations and the stagger effect can be\n * performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for\n * the animation. The style property expected within the stagger class can either be a **transition-delay** or an\n * **animation-delay** property (or both if your animation contains both transitions and keyframe animations).\n *\n * ```css\n * .my-animation.ng-enter {\n *   /&#42; standard transition code &#42;/\n *   -webkit-transition: 1s linear all;\n *   transition: 1s linear all;\n *   opacity:0;\n * }\n * .my-animation.ng-enter-stagger {\n *   /&#42; this will have a 100ms delay between each successive leave animation &#42;/\n *   -webkit-transition-delay: 0.1s;\n *   transition-delay: 0.1s;\n *\n *   /&#42; in case the stagger doesn't work then these two values\n *    must be set to 0 to avoid an accidental CSS inheritance &#42;/\n *   -webkit-transition-duration: 0s;\n *   transition-duration: 0s;\n * }\n * .my-animation.ng-enter.ng-enter-active {\n *   /&#42; standard transition styles &#42;/\n *   opacity:1;\n * }\n * ```\n *\n * Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations\n * on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this\n * are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation\n * will also be reset if more than 10ms has passed after the last animation has been fired.\n *\n * The following code will issue the **ng-leave-stagger** event on the element provided:\n *\n * ```js\n * var kids = parent.children();\n *\n * $animate.leave(kids[0]); //stagger index=0\n * $animate.leave(kids[1]); //stagger index=1\n * $animate.leave(kids[2]); //stagger index=2\n * $animate.leave(kids[3]); //stagger index=3\n * $animate.leave(kids[4]); //stagger index=4\n *\n * $timeout(function() {\n *   //stagger has reset itself\n *   $animate.leave(kids[5]); //stagger index=0\n *   $animate.leave(kids[6]); //stagger index=1\n * }, 100, false);\n * ```\n *\n * Stagger animations are currently only supported within CSS-defined animations.\n *\n * ## JavaScript-defined Animations\n * In the event that you do not want to use CSS3 transitions or CSS3 animations or if you wish to offer animations on browsers that do not\n * yet support CSS transitions/animations, then you can make use of JavaScript animations defined inside of your AngularJS module.\n *\n * ```js\n * //!annotate=\"YourApp\" Your AngularJS Module|Replace this or ngModule with the module that you used to define your application.\n * var ngModule = angular.module('YourApp', ['ngAnimate']);\n * ngModule.animation('.my-crazy-animation', function() {\n *   return {\n *     enter: function(element, done) {\n *       //run the animation here and call done when the animation is complete\n *       return function(cancelled) {\n *         //this (optional) function will be called when the animation\n *         //completes or when the animation is cancelled (the cancelled\n *         //flag will be set to true if cancelled).\n *       };\n *     },\n *     leave: function(element, done) { },\n *     move: function(element, done) { },\n *\n *     //animation that can be triggered before the class is added\n *     beforeAddClass: function(element, className, done) { },\n *\n *     //animation that can be triggered after the class is added\n *     addClass: function(element, className, done) { },\n *\n *     //animation that can be triggered before the class is removed\n *     beforeRemoveClass: function(element, className, done) { },\n *\n *     //animation that can be triggered after the class is removed\n *     removeClass: function(element, className, done) { }\n *   };\n * });\n * ```\n *\n * JavaScript-defined animations are created with a CSS-like class selector and a collection of events which are set to run\n * a javascript callback function. When an animation is triggered, $animate will look for a matching animation which fits\n * the element's CSS class attribute value and then run the matching animation event function (if found).\n * In other words, if the CSS classes present on the animated element match any of the JavaScript animations then the callback function will\n * be executed. It should be also noted that only simple, single class selectors are allowed (compound class selectors are not supported).\n *\n * Within a JavaScript animation, an object containing various event callback animation functions is expected to be returned.\n * As explained above, these callbacks are triggered based on the animation event. Therefore if an enter animation is run,\n * and the JavaScript animation is found, then the enter callback will handle that animation (in addition to the CSS keyframe animation\n * or transition code that is defined via a stylesheet).\n *\n *\n * ### Applying Directive-specific Styles to an Animation\n * In some cases a directive or service may want to provide `$animate` with extra details that the animation will\n * include into its animation. Let's say for example we wanted to render an animation that animates an element\n * towards the mouse coordinates as to where the user clicked last. By collecting the X/Y coordinates of the click\n * (via the event parameter) we can set the `top` and `left` styles into an object and pass that into our function\n * call to `$animate.addClass`.\n *\n * ```js\n * canvas.on('click', function(e) {\n *   $animate.addClass(element, 'on', {\n *     to: {\n *       left : e.client.x + 'px',\n *       top : e.client.y + 'px'\n *     }\n *   }):\n * });\n * ```\n *\n * Now when the animation runs, and a transition or keyframe animation is picked up, then the animation itself will\n * also include and transition the styling of the `left` and `top` properties into its running animation. If we want\n * to provide some starting animation values then we can do so by placing the starting animations styles into an object\n * called `from` in the same object as the `to` animations.\n *\n * ```js\n * canvas.on('click', function(e) {\n *   $animate.addClass(element, 'on', {\n *     from: {\n *        position: 'absolute',\n *        left: '0px',\n *        top: '0px'\n *     },\n *     to: {\n *       left : e.client.x + 'px',\n *       top : e.client.y + 'px'\n *     }\n *   }):\n * });\n * ```\n *\n * Once the animation is complete or cancelled then the union of both the before and after styles are applied to the\n * element. If `ngAnimate` is not present then the styles will be applied immediately.\n *\n */\n\nangular.module('ngAnimate', ['ng'])\n\n  /**\n   * @ngdoc provider\n   * @name $animateProvider\n   * @description\n   *\n   * The `$animateProvider` allows developers to register JavaScript animation event handlers directly inside of a module.\n   * When an animation is triggered, the $animate service will query the $animate service to find any animations that match\n   * the provided name value.\n   *\n   * Requires the {@link ngAnimate `ngAnimate`} module to be installed.\n   *\n   * Please visit the {@link ngAnimate `ngAnimate`} module overview page learn more about how to use animations in your application.\n   *\n   */\n  .directive('ngAnimateChildren', function() {\n    var NG_ANIMATE_CHILDREN = '$$ngAnimateChildren';\n    return function(scope, element, attrs) {\n      var val = attrs.ngAnimateChildren;\n      if (angular.isString(val) && val.length === 0) { //empty attribute\n        element.data(NG_ANIMATE_CHILDREN, true);\n      } else {\n        scope.$watch(val, function(value) {\n          element.data(NG_ANIMATE_CHILDREN, !!value);\n        });\n      }\n    };\n  })\n\n  //this private service is only used within CSS-enabled animations\n  //IE8 + IE9 do not support rAF natively, but that is fine since they\n  //also don't support transitions and keyframes which means that the code\n  //below will never be used by the two browsers.\n  .factory('$$animateReflow', ['$$rAF', '$document', function($$rAF, $document) {\n    var bod = $document[0].body;\n    return function(fn) {\n      //the returned function acts as the cancellation function\n      return $$rAF(function() {\n        //the line below will force the browser to perform a repaint\n        //so that all the animated elements within the animation frame\n        //will be properly updated and drawn on screen. This is\n        //required to perform multi-class CSS based animations with\n        //Firefox. DO NOT REMOVE THIS LINE. DO NOT OPTIMIZE THIS LINE.\n        //THE MINIFIER WILL REMOVE IT OTHERWISE WHICH WILL RESULT IN AN\n        //UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND WILL\n        //TAKE YEARS AWAY FROM YOUR LIFE!\n        fn(bod.offsetWidth);\n      });\n    };\n  }])\n\n  .config(['$provide', '$animateProvider', function($provide, $animateProvider) {\n    var noop = angular.noop;\n    var forEach = angular.forEach;\n    var selectors = $animateProvider.$$selectors;\n    var isArray = angular.isArray;\n    var isString = angular.isString;\n    var isObject = angular.isObject;\n\n    var ELEMENT_NODE = 1;\n    var NG_ANIMATE_STATE = '$$ngAnimateState';\n    var NG_ANIMATE_CHILDREN = '$$ngAnimateChildren';\n    var NG_ANIMATE_CLASS_NAME = 'ng-animate';\n    var rootAnimateState = {running: true};\n\n    function extractElementNode(element) {\n      for (var i = 0; i < element.length; i++) {\n        var elm = element[i];\n        if (elm.nodeType == ELEMENT_NODE) {\n          return elm;\n        }\n      }\n    }\n\n    function prepareElement(element) {\n      return element && angular.element(element);\n    }\n\n    function stripCommentsFromElement(element) {\n      return angular.element(extractElementNode(element));\n    }\n\n    function isMatchingElement(elm1, elm2) {\n      return extractElementNode(elm1) == extractElementNode(elm2);\n    }\n    var $$jqLite;\n    $provide.decorator('$animate',\n        ['$delegate', '$$q', '$injector', '$sniffer', '$rootElement', '$$asyncCallback', '$rootScope', '$document', '$templateRequest', '$$jqLite',\n function($delegate,   $$q,   $injector,   $sniffer,   $rootElement,   $$asyncCallback,   $rootScope,   $document,   $templateRequest,   $$$jqLite) {\n\n      $$jqLite = $$$jqLite;\n      $rootElement.data(NG_ANIMATE_STATE, rootAnimateState);\n\n      // Wait until all directive and route-related templates are downloaded and\n      // compiled. The $templateRequest.totalPendingRequests variable keeps track of\n      // all of the remote templates being currently downloaded. If there are no\n      // templates currently downloading then the watcher will still fire anyway.\n      var deregisterWatch = $rootScope.$watch(\n        function() { return $templateRequest.totalPendingRequests; },\n        function(val, oldVal) {\n          if (val !== 0) return;\n          deregisterWatch();\n\n          // Now that all templates have been downloaded, $animate will wait until\n          // the post digest queue is empty before enabling animations. By having two\n          // calls to $postDigest calls we can ensure that the flag is enabled at the\n          // very end of the post digest queue. Since all of the animations in $animate\n          // use $postDigest, it's important that the code below executes at the end.\n          // This basically means that the page is fully downloaded and compiled before\n          // any animations are triggered.\n          $rootScope.$$postDigest(function() {\n            $rootScope.$$postDigest(function() {\n              rootAnimateState.running = false;\n            });\n          });\n        }\n      );\n\n      var globalAnimationCounter = 0;\n      var classNameFilter = $animateProvider.classNameFilter();\n      var isAnimatableClassName = !classNameFilter\n              ? function() { return true; }\n              : function(className) {\n                return classNameFilter.test(className);\n              };\n\n      function classBasedAnimationsBlocked(element, setter) {\n        var data = element.data(NG_ANIMATE_STATE) || {};\n        if (setter) {\n          data.running = true;\n          data.structural = true;\n          element.data(NG_ANIMATE_STATE, data);\n        }\n        return data.disabled || (data.running && data.structural);\n      }\n\n      function runAnimationPostDigest(fn) {\n        var cancelFn, defer = $$q.defer();\n        defer.promise.$$cancelFn = function() {\n          cancelFn && cancelFn();\n        };\n        $rootScope.$$postDigest(function() {\n          cancelFn = fn(function() {\n            defer.resolve();\n          });\n        });\n        return defer.promise;\n      }\n\n      function parseAnimateOptions(options) {\n        // some plugin code may still be passing in the callback\n        // function as the last param for the $animate methods so\n        // it's best to only allow string or array values for now\n        if (isObject(options)) {\n          if (options.tempClasses && isString(options.tempClasses)) {\n            options.tempClasses = options.tempClasses.split(/\\s+/);\n          }\n          return options;\n        }\n      }\n\n      function resolveElementClasses(element, cache, runningAnimations) {\n        runningAnimations = runningAnimations || {};\n\n        var lookup = {};\n        forEach(runningAnimations, function(data, selector) {\n          forEach(selector.split(' '), function(s) {\n            lookup[s]=data;\n          });\n        });\n\n        var hasClasses = Object.create(null);\n        forEach((element.attr('class') || '').split(/\\s+/), function(className) {\n          hasClasses[className] = true;\n        });\n\n        var toAdd = [], toRemove = [];\n        forEach((cache && cache.classes) || [], function(status, className) {\n          var hasClass = hasClasses[className];\n          var matchingAnimation = lookup[className] || {};\n\n          // When addClass and removeClass is called then $animate will check to\n          // see if addClass and removeClass cancel each other out. When there are\n          // more calls to removeClass than addClass then the count falls below 0\n          // and then the removeClass animation will be allowed. Otherwise if the\n          // count is above 0 then that means an addClass animation will commence.\n          // Once an animation is allowed then the code will also check to see if\n          // there exists any on-going animation that is already adding or remvoing\n          // the matching CSS class.\n          if (status === false) {\n            //does it have the class or will it have the class\n            if (hasClass || matchingAnimation.event == 'addClass') {\n              toRemove.push(className);\n            }\n          } else if (status === true) {\n            //is the class missing or will it be removed?\n            if (!hasClass || matchingAnimation.event == 'removeClass') {\n              toAdd.push(className);\n            }\n          }\n        });\n\n        return (toAdd.length + toRemove.length) > 0 && [toAdd.join(' '), toRemove.join(' ')];\n      }\n\n      function lookup(name) {\n        if (name) {\n          var matches = [],\n              flagMap = {},\n              classes = name.substr(1).split('.');\n\n          //the empty string value is the default animation\n          //operation which performs CSS transition and keyframe\n          //animations sniffing. This is always included for each\n          //element animation procedure if the browser supports\n          //transitions and/or keyframe animations. The default\n          //animation is added to the top of the list to prevent\n          //any previous animations from affecting the element styling\n          //prior to the element being animated.\n          if ($sniffer.transitions || $sniffer.animations) {\n            matches.push($injector.get(selectors['']));\n          }\n\n          for (var i=0; i < classes.length; i++) {\n            var klass = classes[i],\n                selectorFactoryName = selectors[klass];\n            if (selectorFactoryName && !flagMap[klass]) {\n              matches.push($injector.get(selectorFactoryName));\n              flagMap[klass] = true;\n            }\n          }\n          return matches;\n        }\n      }\n\n      function animationRunner(element, animationEvent, className, options) {\n        //transcluded directives may sometimes fire an animation using only comment nodes\n        //best to catch this early on to prevent any animation operations from occurring\n        var node = element[0];\n        if (!node) {\n          return;\n        }\n\n        if (options) {\n          options.to = options.to || {};\n          options.from = options.from || {};\n        }\n\n        var classNameAdd;\n        var classNameRemove;\n        if (isArray(className)) {\n          classNameAdd = className[0];\n          classNameRemove = className[1];\n          if (!classNameAdd) {\n            className = classNameRemove;\n            animationEvent = 'removeClass';\n          } else if (!classNameRemove) {\n            className = classNameAdd;\n            animationEvent = 'addClass';\n          } else {\n            className = classNameAdd + ' ' + classNameRemove;\n          }\n        }\n\n        var isSetClassOperation = animationEvent == 'setClass';\n        var isClassBased = isSetClassOperation\n                           || animationEvent == 'addClass'\n                           || animationEvent == 'removeClass'\n                           || animationEvent == 'animate';\n\n        var currentClassName = element.attr('class');\n        var classes = currentClassName + ' ' + className;\n        if (!isAnimatableClassName(classes)) {\n          return;\n        }\n\n        var beforeComplete = noop,\n            beforeCancel = [],\n            before = [],\n            afterComplete = noop,\n            afterCancel = [],\n            after = [];\n\n        var animationLookup = (' ' + classes).replace(/\\s+/g,'.');\n        forEach(lookup(animationLookup), function(animationFactory) {\n          var created = registerAnimation(animationFactory, animationEvent);\n          if (!created && isSetClassOperation) {\n            registerAnimation(animationFactory, 'addClass');\n            registerAnimation(animationFactory, 'removeClass');\n          }\n        });\n\n        function registerAnimation(animationFactory, event) {\n          var afterFn = animationFactory[event];\n          var beforeFn = animationFactory['before' + event.charAt(0).toUpperCase() + event.substr(1)];\n          if (afterFn || beforeFn) {\n            if (event == 'leave') {\n              beforeFn = afterFn;\n              //when set as null then animation knows to skip this phase\n              afterFn = null;\n            }\n            after.push({\n              event: event, fn: afterFn\n            });\n            before.push({\n              event: event, fn: beforeFn\n            });\n            return true;\n          }\n        }\n\n        function run(fns, cancellations, allCompleteFn) {\n          var animations = [];\n          forEach(fns, function(animation) {\n            animation.fn && animations.push(animation);\n          });\n\n          var count = 0;\n          function afterAnimationComplete(index) {\n            if (cancellations) {\n              (cancellations[index] || noop)();\n              if (++count < animations.length) return;\n              cancellations = null;\n            }\n            allCompleteFn();\n          }\n\n          //The code below adds directly to the array in order to work with\n          //both sync and async animations. Sync animations are when the done()\n          //operation is called right away. DO NOT REFACTOR!\n          forEach(animations, function(animation, index) {\n            var progress = function() {\n              afterAnimationComplete(index);\n            };\n            switch (animation.event) {\n              case 'setClass':\n                cancellations.push(animation.fn(element, classNameAdd, classNameRemove, progress, options));\n                break;\n              case 'animate':\n                cancellations.push(animation.fn(element, className, options.from, options.to, progress));\n                break;\n              case 'addClass':\n                cancellations.push(animation.fn(element, classNameAdd || className,     progress, options));\n                break;\n              case 'removeClass':\n                cancellations.push(animation.fn(element, classNameRemove || className,  progress, options));\n                break;\n              default:\n                cancellations.push(animation.fn(element, progress, options));\n                break;\n            }\n          });\n\n          if (cancellations && cancellations.length === 0) {\n            allCompleteFn();\n          }\n        }\n\n        return {\n          node: node,\n          event: animationEvent,\n          className: className,\n          isClassBased: isClassBased,\n          isSetClassOperation: isSetClassOperation,\n          applyStyles: function() {\n            if (options) {\n              element.css(angular.extend(options.from || {}, options.to || {}));\n            }\n          },\n          before: function(allCompleteFn) {\n            beforeComplete = allCompleteFn;\n            run(before, beforeCancel, function() {\n              beforeComplete = noop;\n              allCompleteFn();\n            });\n          },\n          after: function(allCompleteFn) {\n            afterComplete = allCompleteFn;\n            run(after, afterCancel, function() {\n              afterComplete = noop;\n              allCompleteFn();\n            });\n          },\n          cancel: function() {\n            if (beforeCancel) {\n              forEach(beforeCancel, function(cancelFn) {\n                (cancelFn || noop)(true);\n              });\n              beforeComplete(true);\n            }\n            if (afterCancel) {\n              forEach(afterCancel, function(cancelFn) {\n                (cancelFn || noop)(true);\n              });\n              afterComplete(true);\n            }\n          }\n        };\n      }\n\n      /**\n       * @ngdoc service\n       * @name $animate\n       * @kind object\n       *\n       * @description\n       * The `$animate` service provides animation detection support while performing DOM operations (enter, leave and move) as well as during addClass and removeClass operations.\n       * When any of these operations are run, the $animate service\n       * will examine any JavaScript-defined animations (which are defined by using the $animateProvider provider object)\n       * as well as any CSS-defined animations against the CSS classes present on the element once the DOM operation is run.\n       *\n       * The `$animate` service is used behind the scenes with pre-existing directives and animation with these directives\n       * will work out of the box without any extra configuration.\n       *\n       * Requires the {@link ngAnimate `ngAnimate`} module to be installed.\n       *\n       * Please visit the {@link ngAnimate `ngAnimate`} module overview page learn more about how to use animations in your application.\n       * ## Callback Promises\n       * With AngularJS 1.3, each of the animation methods, on the `$animate` service, return a promise when called. The\n       * promise itself is then resolved once the animation has completed itself, has been cancelled or has been\n       * skipped due to animations being disabled. (Note that even if the animation is cancelled it will still\n       * call the resolve function of the animation.)\n       *\n       * ```js\n       * $animate.enter(element, container).then(function() {\n       *   //...this is called once the animation is complete...\n       * });\n       * ```\n       *\n       * Also note that, due to the nature of the callback promise, if any Angular-specific code (like changing the scope,\n       * location of the page, etc...) is executed within the callback promise then be sure to wrap the code using\n       * `$scope.$apply(...)`;\n       *\n       * ```js\n       * $animate.leave(element).then(function() {\n       *   $scope.$apply(function() {\n       *     $location.path('/new-page');\n       *   });\n       * });\n       * ```\n       *\n       * An animation can also be cancelled by calling the `$animate.cancel(promise)` method with the provided\n       * promise that was returned when the animation was started.\n       *\n       * ```js\n       * var promise = $animate.addClass(element, 'super-long-animation');\n       * promise.then(function() {\n       *   //this will still be called even if cancelled\n       * });\n       *\n       * element.on('click', function() {\n       *   //tooo lazy to wait for the animation to end\n       *   $animate.cancel(promise);\n       * });\n       * ```\n       *\n       * (Keep in mind that the promise cancellation is unique to `$animate` since promises in\n       * general cannot be cancelled.)\n       *\n       */\n      return {\n        /**\n         * @ngdoc method\n         * @name $animate#animate\n         * @kind function\n         *\n         * @description\n         * Performs an inline animation on the element which applies the provided `to` and `from` CSS styles to the element.\n         * If any detected CSS transition, keyframe or JavaScript matches the provided `className` value then the animation\n         * will take on the provided styles. For example, if a transition animation is set for the given className then the\n         * provided `from` and `to` styles will be applied alongside the given transition. If a JavaScript animation is\n         * detected then the provided styles will be given in as function paramters.\n         *\n         * ```js\n         * ngModule.animation('.my-inline-animation', function() {\n         *   return {\n         *     animate : function(element, className, from, to, done) {\n         *       //styles\n         *     }\n         *   }\n         * });\n         * ```\n         *\n         * Below is a breakdown of each step that occurs during the `animate` animation:\n         *\n         * | Animation Step                                                                                                        | What the element class attribute looks like                  |\n         * |-----------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------|\n         * | 1. `$animate.animate(...)` is called                                                                                  | `class=\"my-animation\"`                                       |\n         * | 2. `$animate` waits for the next digest to start the animation                                                        | `class=\"my-animation ng-animate\"`                            |\n         * | 3. `$animate` runs the JavaScript-defined animations detected on the element                                          | `class=\"my-animation ng-animate\"`                            |\n         * | 4. the `className` class value is added to the element                                                                | `class=\"my-animation ng-animate className\"`                  |\n         * | 5. `$animate` scans the element styles to get the CSS transition/animation duration and delay                         | `class=\"my-animation ng-animate className\"`                  |\n         * | 6. `$animate` blocks all CSS transitions on the element to ensure the `.className` class styling is applied right away| `class=\"my-animation ng-animate className\"`                  |\n         * | 7. `$animate` applies the provided collection of `from` CSS styles to the element                                     | `class=\"my-animation ng-animate className\"`                  |\n         * | 8. `$animate` waits for a single animation frame (this performs a reflow)                                             | `class=\"my-animation ng-animate className\"`                  |\n         * | 9. `$animate` removes the CSS transition block placed on the element                                                  | `class=\"my-animation ng-animate className\"`                  |\n         * | 10. the `className-active` class is added (this triggers the CSS transition/animation)                                | `class=\"my-animation ng-animate className className-active\"` |\n         * | 11. `$animate` applies the collection of `to` CSS styles to the element which are then handled by the transition      | `class=\"my-animation ng-animate className className-active\"` |\n         * | 12. `$animate` waits for the animation to complete (via events and timeout)                                           | `class=\"my-animation ng-animate className className-active\"` |\n         * | 13. The animation ends and all generated CSS classes are removed from the element                                     | `class=\"my-animation\"`                                       |\n         * | 14. The returned promise is resolved.                                                                                 | `class=\"my-animation\"`                                       |\n         *\n         * @param {DOMElement} element the element that will be the focus of the enter animation\n         * @param {object} from a collection of CSS styles that will be applied to the element at the start of the animation\n         * @param {object} to a collection of CSS styles that the element will animate towards\n         * @param {string=} className an optional CSS class that will be added to the element for the duration of the animation (the default class is `ng-inline-animate`)\n         * @param {object=} options an optional collection of options that will be picked up by the CSS transition/animation\n         * @return {Promise} the animation callback promise\n        */\n        animate: function(element, from, to, className, options) {\n          className = className || 'ng-inline-animate';\n          options = parseAnimateOptions(options) || {};\n          options.from = to ? from : null;\n          options.to   = to ? to : from;\n\n          return runAnimationPostDigest(function(done) {\n            return performAnimation('animate', className, stripCommentsFromElement(element), null, null, noop, options, done);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#enter\n         * @kind function\n         *\n         * @description\n         * Appends the element to the parentElement element that resides in the document and then runs the enter animation. Once\n         * the animation is started, the following CSS classes will be present on the element for the duration of the animation:\n         *\n         * Below is a breakdown of each step that occurs during enter animation:\n         *\n         * | Animation Step                                                                                                        | What the element class attribute looks like                |\n         * |-----------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------|\n         * | 1. `$animate.enter(...)` is called                                                                                    | `class=\"my-animation\"`                                     |\n         * | 2. element is inserted into the `parentElement` element or beside the `afterElement` element                          | `class=\"my-animation\"`                                     |\n         * | 3. `$animate` waits for the next digest to start the animation                                                        | `class=\"my-animation ng-animate\"`                          |\n         * | 4. `$animate` runs the JavaScript-defined animations detected on the element                                          | `class=\"my-animation ng-animate\"`                          |\n         * | 5. the `.ng-enter` class is added to the element                                                                      | `class=\"my-animation ng-animate ng-enter\"`                 |\n         * | 6. `$animate` scans the element styles to get the CSS transition/animation duration and delay                         | `class=\"my-animation ng-animate ng-enter\"`                 |\n         * | 7. `$animate` blocks all CSS transitions on the element to ensure the `.ng-enter` class styling is applied right away | `class=\"my-animation ng-animate ng-enter\"`                 |\n         * | 8. `$animate` waits for a single animation frame (this performs a reflow)                                             | `class=\"my-animation ng-animate ng-enter\"`                 |\n         * | 9. `$animate` removes the CSS transition block placed on the element                                                  | `class=\"my-animation ng-animate ng-enter\"`                 |\n         * | 10. the `.ng-enter-active` class is added (this triggers the CSS transition/animation)                                | `class=\"my-animation ng-animate ng-enter ng-enter-active\"` |\n         * | 11. `$animate` waits for the animation to complete (via events and timeout)                                           | `class=\"my-animation ng-animate ng-enter ng-enter-active\"` |\n         * | 12. The animation ends and all generated CSS classes are removed from the element                                     | `class=\"my-animation\"`                                     |\n         * | 13. The returned promise is resolved.                                                                                 | `class=\"my-animation\"`                                     |\n         *\n         * @param {DOMElement} element the element that will be the focus of the enter animation\n         * @param {DOMElement} parentElement the parent element of the element that will be the focus of the enter animation\n         * @param {DOMElement} afterElement the sibling element (which is the previous element) of the element that will be the focus of the enter animation\n         * @param {object=} options an optional collection of options that will be picked up by the CSS transition/animation\n         * @return {Promise} the animation callback promise\n        */\n        enter: function(element, parentElement, afterElement, options) {\n          options = parseAnimateOptions(options);\n          element = angular.element(element);\n          parentElement = prepareElement(parentElement);\n          afterElement = prepareElement(afterElement);\n\n          classBasedAnimationsBlocked(element, true);\n          $delegate.enter(element, parentElement, afterElement);\n          return runAnimationPostDigest(function(done) {\n            return performAnimation('enter', 'ng-enter', stripCommentsFromElement(element), parentElement, afterElement, noop, options, done);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#leave\n         * @kind function\n         *\n         * @description\n         * Runs the leave animation operation and, upon completion, removes the element from the DOM. Once\n         * the animation is started, the following CSS classes will be added for the duration of the animation:\n         *\n         * Below is a breakdown of each step that occurs during leave animation:\n         *\n         * | Animation Step                                                                                                        | What the element class attribute looks like                |\n         * |-----------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------|\n         * | 1. `$animate.leave(...)` is called                                                                                    | `class=\"my-animation\"`                                     |\n         * | 2. `$animate` runs the JavaScript-defined animations detected on the element                                          | `class=\"my-animation ng-animate\"`                          |\n         * | 3. `$animate` waits for the next digest to start the animation                                                        | `class=\"my-animation ng-animate\"`                          |\n         * | 4. the `.ng-leave` class is added to the element                                                                      | `class=\"my-animation ng-animate ng-leave\"`                 |\n         * | 5. `$animate` scans the element styles to get the CSS transition/animation duration and delay                         | `class=\"my-animation ng-animate ng-leave\"`                 |\n         * | 6. `$animate` blocks all CSS transitions on the element to ensure the `.ng-leave` class styling is applied right away | `class=\"my-animation ng-animate ng-leave\"`                 |\n         * | 7. `$animate` waits for a single animation frame (this performs a reflow)                                             | `class=\"my-animation ng-animate ng-leave\"`                 |\n         * | 8. `$animate` removes the CSS transition block placed on the element                                                  | `class=\"my-animation ng-animate ng-leave\"`                 |\n         * | 9. the `.ng-leave-active` class is added (this triggers the CSS transition/animation)                                 | `class=\"my-animation ng-animate ng-leave ng-leave-active\"` |\n         * | 10. `$animate` waits for the animation to complete (via events and timeout)                                           | `class=\"my-animation ng-animate ng-leave ng-leave-active\"` |\n         * | 11. The animation ends and all generated CSS classes are removed from the element                                     | `class=\"my-animation\"`                                     |\n         * | 12. The element is removed from the DOM                                                                               | ...                                                        |\n         * | 13. The returned promise is resolved.                                                                                 | ...                                                        |\n         *\n         * @param {DOMElement} element the element that will be the focus of the leave animation\n         * @param {object=} options an optional collection of styles that will be picked up by the CSS transition/animation\n         * @return {Promise} the animation callback promise\n        */\n        leave: function(element, options) {\n          options = parseAnimateOptions(options);\n          element = angular.element(element);\n\n          cancelChildAnimations(element);\n          classBasedAnimationsBlocked(element, true);\n          return runAnimationPostDigest(function(done) {\n            return performAnimation('leave', 'ng-leave', stripCommentsFromElement(element), null, null, function() {\n              $delegate.leave(element);\n            }, options, done);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#move\n         * @kind function\n         *\n         * @description\n         * Fires the move DOM operation. Just before the animation starts, the animate service will either append it into the parentElement container or\n         * add the element directly after the afterElement element if present. Then the move animation will be run. Once\n         * the animation is started, the following CSS classes will be added for the duration of the animation:\n         *\n         * Below is a breakdown of each step that occurs during move animation:\n         *\n         * | Animation Step                                                                                                       | What the element class attribute looks like              |\n         * |----------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------|\n         * | 1. `$animate.move(...)` is called                                                                                    | `class=\"my-animation\"`                                   |\n         * | 2. element is moved into the parentElement element or beside the afterElement element                                | `class=\"my-animation\"`                                   |\n         * | 3. `$animate` waits for the next digest to start the animation                                                       | `class=\"my-animation ng-animate\"`                        |\n         * | 4. `$animate` runs the JavaScript-defined animations detected on the element                                         | `class=\"my-animation ng-animate\"`                        |\n         * | 5. the `.ng-move` class is added to the element                                                                      | `class=\"my-animation ng-animate ng-move\"`                |\n         * | 6. `$animate` scans the element styles to get the CSS transition/animation duration and delay                        | `class=\"my-animation ng-animate ng-move\"`                |\n         * | 7. `$animate` blocks all CSS transitions on the element to ensure the `.ng-move` class styling is applied right away | `class=\"my-animation ng-animate ng-move\"`                |\n         * | 8. `$animate` waits for a single animation frame (this performs a reflow)                                            | `class=\"my-animation ng-animate ng-move\"`                |\n         * | 9. `$animate` removes the CSS transition block placed on the element                                                 | `class=\"my-animation ng-animate ng-move\"`                |\n         * | 10. the `.ng-move-active` class is added (this triggers the CSS transition/animation)                                | `class=\"my-animation ng-animate ng-move ng-move-active\"` |\n         * | 11. `$animate` waits for the animation to complete (via events and timeout)                                          | `class=\"my-animation ng-animate ng-move ng-move-active\"` |\n         * | 12. The animation ends and all generated CSS classes are removed from the element                                    | `class=\"my-animation\"`                                   |\n         * | 13. The returned promise is resolved.                                                                                | `class=\"my-animation\"`                                   |\n         *\n         * @param {DOMElement} element the element that will be the focus of the move animation\n         * @param {DOMElement} parentElement the parentElement element of the element that will be the focus of the move animation\n         * @param {DOMElement} afterElement the sibling element (which is the previous element) of the element that will be the focus of the move animation\n         * @param {object=} options an optional collection of styles that will be picked up by the CSS transition/animation\n         * @return {Promise} the animation callback promise\n        */\n        move: function(element, parentElement, afterElement, options) {\n          options = parseAnimateOptions(options);\n          element = angular.element(element);\n          parentElement = prepareElement(parentElement);\n          afterElement = prepareElement(afterElement);\n\n          cancelChildAnimations(element);\n          classBasedAnimationsBlocked(element, true);\n          $delegate.move(element, parentElement, afterElement);\n          return runAnimationPostDigest(function(done) {\n            return performAnimation('move', 'ng-move', stripCommentsFromElement(element), parentElement, afterElement, noop, options, done);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#addClass\n         *\n         * @description\n         * Triggers a custom animation event based off the className variable and then attaches the className value to the element as a CSS class.\n         * Unlike the other animation methods, the animate service will suffix the className value with {@type -add} in order to provide\n         * the animate service the setup and active CSS classes in order to trigger the animation (this will be skipped if no CSS transitions\n         * or keyframes are defined on the -add-active or base CSS class).\n         *\n         * Below is a breakdown of each step that occurs during addClass animation:\n         *\n         * | Animation Step                                                                                         | What the element class attribute looks like                        |\n         * |--------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------|\n         * | 1. `$animate.addClass(element, 'super')` is called                                                     | `class=\"my-animation\"`                                             |\n         * | 2. `$animate` runs the JavaScript-defined animations detected on the element                           | `class=\"my-animation ng-animate\"`                                  |\n         * | 3. the `.super-add` class is added to the element                                                      | `class=\"my-animation ng-animate super-add\"`                        |\n         * | 4. `$animate` waits for a single animation frame (this performs a reflow)                              | `class=\"my-animation ng-animate super-add\"`                        |\n         * | 5. the `.super` and `.super-add-active` classes are added (this triggers the CSS transition/animation) | `class=\"my-animation ng-animate super super-add super-add-active\"` |\n         * | 6. `$animate` scans the element styles to get the CSS transition/animation duration and delay          | `class=\"my-animation ng-animate super super-add super-add-active\"` |\n         * | 7. `$animate` waits for the animation to complete (via events and timeout)                             | `class=\"my-animation ng-animate super super-add super-add-active\"` |\n         * | 8. The animation ends and all generated CSS classes are removed from the element                       | `class=\"my-animation super\"`                                       |\n         * | 9. The super class is kept on the element                                                              | `class=\"my-animation super\"`                                       |\n         * | 10. The returned promise is resolved.                                                                  | `class=\"my-animation super\"`                                       |\n         *\n         * @param {DOMElement} element the element that will be animated\n         * @param {string} className the CSS class that will be added to the element and then animated\n         * @param {object=} options an optional collection of styles that will be picked up by the CSS transition/animation\n         * @return {Promise} the animation callback promise\n        */\n        addClass: function(element, className, options) {\n          return this.setClass(element, className, [], options);\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#removeClass\n         *\n         * @description\n         * Triggers a custom animation event based off the className variable and then removes the CSS class provided by the className value\n         * from the element. Unlike the other animation methods, the animate service will suffix the className value with {@type -remove} in\n         * order to provide the animate service the setup and active CSS classes in order to trigger the animation (this will be skipped if\n         * no CSS transitions or keyframes are defined on the -remove or base CSS classes).\n         *\n         * Below is a breakdown of each step that occurs during removeClass animation:\n         *\n         * | Animation Step                                                                                                       | What the element class attribute looks like                        |\n         * |----------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------|\n         * | 1. `$animate.removeClass(element, 'super')` is called                                                                | `class=\"my-animation super\"`                                       |\n         * | 2. `$animate` runs the JavaScript-defined animations detected on the element                                         | `class=\"my-animation super ng-animate\"`                            |\n         * | 3. the `.super-remove` class is added to the element                                                                 | `class=\"my-animation super ng-animate super-remove\"`               |\n         * | 4. `$animate` waits for a single animation frame (this performs a reflow)                                            | `class=\"my-animation super ng-animate super-remove\"`               |\n         * | 5. the `.super-remove-active` classes are added and `.super` is removed (this triggers the CSS transition/animation) | `class=\"my-animation ng-animate super-remove super-remove-active\"` |\n         * | 6. `$animate` scans the element styles to get the CSS transition/animation duration and delay                        | `class=\"my-animation ng-animate super-remove super-remove-active\"` |\n         * | 7. `$animate` waits for the animation to complete (via events and timeout)                                           | `class=\"my-animation ng-animate super-remove super-remove-active\"` |\n         * | 8. The animation ends and all generated CSS classes are removed from the element                                     | `class=\"my-animation\"`                                             |\n         * | 9. The returned promise is resolved.                                                                                 | `class=\"my-animation\"`                                             |\n         *\n         *\n         * @param {DOMElement} element the element that will be animated\n         * @param {string} className the CSS class that will be animated and then removed from the element\n         * @param {object=} options an optional collection of styles that will be picked up by the CSS transition/animation\n         * @return {Promise} the animation callback promise\n        */\n        removeClass: function(element, className, options) {\n          return this.setClass(element, [], className, options);\n        },\n\n        /**\n         *\n         * @ngdoc method\n         * @name $animate#setClass\n         *\n         * @description Adds and/or removes the given CSS classes to and from the element.\n         * Once complete, the `done()` callback will be fired (if provided).\n         *\n         * | Animation Step                                                                                                                               | What the element class attribute looks like                                            |\n         * |----------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|\n         * | 1. `$animate.setClass(element, 'on', 'off')` is called                                                                                       | `class=\"my-animation off\"`                                                             |\n         * | 2. `$animate` runs the JavaScript-defined animations detected on the element                                                                 | `class=\"my-animation ng-animate off\"`                                                  |\n         * | 3. the `.on-add` and `.off-remove` classes are added to the element                                                                          | `class=\"my-animation ng-animate on-add off-remove off\"`                                |\n         * | 4. `$animate` waits for a single animation frame (this performs a reflow)                                                                    | `class=\"my-animation ng-animate on-add off-remove off\"`                                |\n         * | 5. the `.on`, `.on-add-active` and `.off-remove-active` classes are added and `.off` is removed (this triggers the CSS transition/animation) | `class=\"my-animation ng-animate on on-add on-add-active off-remove off-remove-active\"` |\n         * | 6. `$animate` scans the element styles to get the CSS transition/animation duration and delay                                                | `class=\"my-animation ng-animate on on-add on-add-active off-remove off-remove-active\"` |\n         * | 7. `$animate` waits for the animation to complete (via events and timeout)                                                                   | `class=\"my-animation ng-animate on on-add on-add-active off-remove off-remove-active\"` |\n         * | 8. The animation ends and all generated CSS classes are removed from the element                                                             | `class=\"my-animation on\"`                                                              |\n         * | 9. The returned promise is resolved.                                                                                                         | `class=\"my-animation on\"`                                                              |\n         *\n         * @param {DOMElement} element the element which will have its CSS classes changed\n         *   removed from it\n         * @param {string} add the CSS classes which will be added to the element\n         * @param {string} remove the CSS class which will be removed from the element\n         *   CSS classes have been set on the element\n         * @param {object=} options an optional collection of styles that will be picked up by the CSS transition/animation\n         * @return {Promise} the animation callback promise\n         */\n        setClass: function(element, add, remove, options) {\n          options = parseAnimateOptions(options);\n\n          var STORAGE_KEY = '$$animateClasses';\n          element = angular.element(element);\n          element = stripCommentsFromElement(element);\n\n          if (classBasedAnimationsBlocked(element)) {\n            return $delegate.$$setClassImmediately(element, add, remove, options);\n          }\n\n          // we're using a combined array for both the add and remove\n          // operations since the ORDER OF addClass and removeClass matters\n          var classes, cache = element.data(STORAGE_KEY);\n          var hasCache = !!cache;\n          if (!cache) {\n            cache = {};\n            cache.classes = {};\n          }\n          classes = cache.classes;\n\n          add = isArray(add) ? add : add.split(' ');\n          forEach(add, function(c) {\n            if (c && c.length) {\n              classes[c] = true;\n            }\n          });\n\n          remove = isArray(remove) ? remove : remove.split(' ');\n          forEach(remove, function(c) {\n            if (c && c.length) {\n              classes[c] = false;\n            }\n          });\n\n          if (hasCache) {\n            if (options && cache.options) {\n              cache.options = angular.extend(cache.options || {}, options);\n            }\n\n            //the digest cycle will combine all the animations into one function\n            return cache.promise;\n          } else {\n            element.data(STORAGE_KEY, cache = {\n              classes: classes,\n              options: options\n            });\n          }\n\n          return cache.promise = runAnimationPostDigest(function(done) {\n            var cache, parentNode, parentElement, elementNode = extractElementNode(element);\n            if (elementNode) {\n              cache = element.data(STORAGE_KEY);\n              element.removeData(STORAGE_KEY);\n\n              parentElement = element.parent();\n              parentNode = elementNode.parentNode;\n            }\n\n            // TODO(matsko): move this code into the animationsDisabled() function once #8092 is fixed\n            if (!parentNode || parentNode['$$NG_REMOVED'] || elementNode['$$NG_REMOVED']) {\n              done();\n              return;\n            }\n\n            var state = element.data(NG_ANIMATE_STATE) || {};\n            var classes = resolveElementClasses(element, cache, state.active);\n            return !classes\n              ? done()\n              : performAnimation('setClass', classes, element, parentElement, null, function() {\n                  if (classes[0]) $delegate.$$addClassImmediately(element, classes[0]);\n                  if (classes[1]) $delegate.$$removeClassImmediately(element, classes[1]);\n                }, cache.options, done);\n          });\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#cancel\n         * @kind function\n         *\n         * @param {Promise} animationPromise The animation promise that is returned when an animation is started.\n         *\n         * @description\n         * Cancels the provided animation.\n        */\n        cancel: function(promise) {\n          promise.$$cancelFn();\n        },\n\n        /**\n         * @ngdoc method\n         * @name $animate#enabled\n         * @kind function\n         *\n         * @param {boolean=} value If provided then set the animation on or off.\n         * @param {DOMElement=} element If provided then the element will be used to represent the enable/disable operation\n         * @return {boolean} Current animation state.\n         *\n         * @description\n         * Globally enables/disables animations.\n         *\n        */\n        enabled: function(value, element) {\n          switch (arguments.length) {\n            case 2:\n              if (value) {\n                cleanup(element);\n              } else {\n                var data = element.data(NG_ANIMATE_STATE) || {};\n                data.disabled = true;\n                element.data(NG_ANIMATE_STATE, data);\n              }\n            break;\n\n            case 1:\n              rootAnimateState.disabled = !value;\n            break;\n\n            default:\n              value = !rootAnimateState.disabled;\n            break;\n          }\n          return !!value;\n         }\n      };\n\n      /*\n        all animations call this shared animation triggering function internally.\n        The animationEvent variable refers to the JavaScript animation event that will be triggered\n        and the className value is the name of the animation that will be applied within the\n        CSS code. Element, `parentElement` and `afterElement` are provided DOM elements for the animation\n        and the onComplete callback will be fired once the animation is fully complete.\n      */\n      function performAnimation(animationEvent, className, element, parentElement, afterElement, domOperation, options, doneCallback) {\n        var noopCancel = noop;\n        var runner = animationRunner(element, animationEvent, className, options);\n        if (!runner) {\n          fireDOMOperation();\n          fireBeforeCallbackAsync();\n          fireAfterCallbackAsync();\n          closeAnimation();\n          return noopCancel;\n        }\n\n        animationEvent = runner.event;\n        className = runner.className;\n        var elementEvents = angular.element._data(runner.node);\n        elementEvents = elementEvents && elementEvents.events;\n\n        if (!parentElement) {\n          parentElement = afterElement ? afterElement.parent() : element.parent();\n        }\n\n        //skip the animation if animations are disabled, a parent is already being animated,\n        //the element is not currently attached to the document body or then completely close\n        //the animation if any matching animations are not found at all.\n        //NOTE: IE8 + IE9 should close properly (run closeAnimation()) in case an animation was found.\n        if (animationsDisabled(element, parentElement)) {\n          fireDOMOperation();\n          fireBeforeCallbackAsync();\n          fireAfterCallbackAsync();\n          closeAnimation();\n          return noopCancel;\n        }\n\n        var ngAnimateState  = element.data(NG_ANIMATE_STATE) || {};\n        var runningAnimations     = ngAnimateState.active || {};\n        var totalActiveAnimations = ngAnimateState.totalActive || 0;\n        var lastAnimation         = ngAnimateState.last;\n        var skipAnimation = false;\n\n        if (totalActiveAnimations > 0) {\n          var animationsToCancel = [];\n          if (!runner.isClassBased) {\n            if (animationEvent == 'leave' && runningAnimations['ng-leave']) {\n              skipAnimation = true;\n            } else {\n              //cancel all animations when a structural animation takes place\n              for (var klass in runningAnimations) {\n                animationsToCancel.push(runningAnimations[klass]);\n              }\n              ngAnimateState = {};\n              cleanup(element, true);\n            }\n          } else if (lastAnimation.event == 'setClass') {\n            animationsToCancel.push(lastAnimation);\n            cleanup(element, className);\n          } else if (runningAnimations[className]) {\n            var current = runningAnimations[className];\n            if (current.event == animationEvent) {\n              skipAnimation = true;\n            } else {\n              animationsToCancel.push(current);\n              cleanup(element, className);\n            }\n          }\n\n          if (animationsToCancel.length > 0) {\n            forEach(animationsToCancel, function(operation) {\n              operation.cancel();\n            });\n          }\n        }\n\n        if (runner.isClassBased\n            && !runner.isSetClassOperation\n            && animationEvent != 'animate'\n            && !skipAnimation) {\n          skipAnimation = (animationEvent == 'addClass') == element.hasClass(className); //opposite of XOR\n        }\n\n        if (skipAnimation) {\n          fireDOMOperation();\n          fireBeforeCallbackAsync();\n          fireAfterCallbackAsync();\n          fireDoneCallbackAsync();\n          return noopCancel;\n        }\n\n        runningAnimations     = ngAnimateState.active || {};\n        totalActiveAnimations = ngAnimateState.totalActive || 0;\n\n        if (animationEvent == 'leave') {\n          //there's no need to ever remove the listener since the element\n          //will be removed (destroyed) after the leave animation ends or\n          //is cancelled midway\n          element.one('$destroy', function(e) {\n            var element = angular.element(this);\n            var state = element.data(NG_ANIMATE_STATE);\n            if (state) {\n              var activeLeaveAnimation = state.active['ng-leave'];\n              if (activeLeaveAnimation) {\n                activeLeaveAnimation.cancel();\n                cleanup(element, 'ng-leave');\n              }\n            }\n          });\n        }\n\n        //the ng-animate class does nothing, but it's here to allow for\n        //parent animations to find and cancel child animations when needed\n        $$jqLite.addClass(element, NG_ANIMATE_CLASS_NAME);\n        if (options && options.tempClasses) {\n          forEach(options.tempClasses, function(className) {\n            $$jqLite.addClass(element, className);\n          });\n        }\n\n        var localAnimationCount = globalAnimationCounter++;\n        totalActiveAnimations++;\n        runningAnimations[className] = runner;\n\n        element.data(NG_ANIMATE_STATE, {\n          last: runner,\n          active: runningAnimations,\n          index: localAnimationCount,\n          totalActive: totalActiveAnimations\n        });\n\n        //first we run the before animations and when all of those are complete\n        //then we perform the DOM operation and run the next set of animations\n        fireBeforeCallbackAsync();\n        runner.before(function(cancelled) {\n          var data = element.data(NG_ANIMATE_STATE);\n          cancelled = cancelled ||\n                        !data || !data.active[className] ||\n                        (runner.isClassBased && data.active[className].event != animationEvent);\n\n          fireDOMOperation();\n          if (cancelled === true) {\n            closeAnimation();\n          } else {\n            fireAfterCallbackAsync();\n            runner.after(closeAnimation);\n          }\n        });\n\n        return runner.cancel;\n\n        function fireDOMCallback(animationPhase) {\n          var eventName = '$animate:' + animationPhase;\n          if (elementEvents && elementEvents[eventName] && elementEvents[eventName].length > 0) {\n            $$asyncCallback(function() {\n              element.triggerHandler(eventName, {\n                event: animationEvent,\n                className: className\n              });\n            });\n          }\n        }\n\n        function fireBeforeCallbackAsync() {\n          fireDOMCallback('before');\n        }\n\n        function fireAfterCallbackAsync() {\n          fireDOMCallback('after');\n        }\n\n        function fireDoneCallbackAsync() {\n          fireDOMCallback('close');\n          doneCallback();\n        }\n\n        //it is less complicated to use a flag than managing and canceling\n        //timeouts containing multiple callbacks.\n        function fireDOMOperation() {\n          if (!fireDOMOperation.hasBeenRun) {\n            fireDOMOperation.hasBeenRun = true;\n            domOperation();\n          }\n        }\n\n        function closeAnimation() {\n          if (!closeAnimation.hasBeenRun) {\n            if (runner) { //the runner doesn't exist if it fails to instantiate\n              runner.applyStyles();\n            }\n\n            closeAnimation.hasBeenRun = true;\n            if (options && options.tempClasses) {\n              forEach(options.tempClasses, function(className) {\n                $$jqLite.removeClass(element, className);\n              });\n            }\n\n            var data = element.data(NG_ANIMATE_STATE);\n            if (data) {\n\n              /* only structural animations wait for reflow before removing an\n                 animation, but class-based animations don't. An example of this\n                 failing would be when a parent HTML tag has a ng-class attribute\n                 causing ALL directives below to skip animations during the digest */\n              if (runner && runner.isClassBased) {\n                cleanup(element, className);\n              } else {\n                $$asyncCallback(function() {\n                  var data = element.data(NG_ANIMATE_STATE) || {};\n                  if (localAnimationCount == data.index) {\n                    cleanup(element, className, animationEvent);\n                  }\n                });\n                element.data(NG_ANIMATE_STATE, data);\n              }\n            }\n            fireDoneCallbackAsync();\n          }\n        }\n      }\n\n      function cancelChildAnimations(element) {\n        var node = extractElementNode(element);\n        if (node) {\n          var nodes = angular.isFunction(node.getElementsByClassName) ?\n            node.getElementsByClassName(NG_ANIMATE_CLASS_NAME) :\n            node.querySelectorAll('.' + NG_ANIMATE_CLASS_NAME);\n          forEach(nodes, function(element) {\n            element = angular.element(element);\n            var data = element.data(NG_ANIMATE_STATE);\n            if (data && data.active) {\n              forEach(data.active, function(runner) {\n                runner.cancel();\n              });\n            }\n          });\n        }\n      }\n\n      function cleanup(element, className) {\n        if (isMatchingElement(element, $rootElement)) {\n          if (!rootAnimateState.disabled) {\n            rootAnimateState.running = false;\n            rootAnimateState.structural = false;\n          }\n        } else if (className) {\n          var data = element.data(NG_ANIMATE_STATE) || {};\n\n          var removeAnimations = className === true;\n          if (!removeAnimations && data.active && data.active[className]) {\n            data.totalActive--;\n            delete data.active[className];\n          }\n\n          if (removeAnimations || !data.totalActive) {\n            $$jqLite.removeClass(element, NG_ANIMATE_CLASS_NAME);\n            element.removeData(NG_ANIMATE_STATE);\n          }\n        }\n      }\n\n      function animationsDisabled(element, parentElement) {\n        if (rootAnimateState.disabled) {\n          return true;\n        }\n\n        if (isMatchingElement(element, $rootElement)) {\n          return rootAnimateState.running;\n        }\n\n        var allowChildAnimations, parentRunningAnimation, hasParent;\n        do {\n          //the element did not reach the root element which means that it\n          //is not apart of the DOM. Therefore there is no reason to do\n          //any animations on it\n          if (parentElement.length === 0) break;\n\n          var isRoot = isMatchingElement(parentElement, $rootElement);\n          var state = isRoot ? rootAnimateState : (parentElement.data(NG_ANIMATE_STATE) || {});\n          if (state.disabled) {\n            return true;\n          }\n\n          //no matter what, for an animation to work it must reach the root element\n          //this implies that the element is attached to the DOM when the animation is run\n          if (isRoot) {\n            hasParent = true;\n          }\n\n          //once a flag is found that is strictly false then everything before\n          //it will be discarded and all child animations will be restricted\n          if (allowChildAnimations !== false) {\n            var animateChildrenFlag = parentElement.data(NG_ANIMATE_CHILDREN);\n            if (angular.isDefined(animateChildrenFlag)) {\n              allowChildAnimations = animateChildrenFlag;\n            }\n          }\n\n          parentRunningAnimation = parentRunningAnimation ||\n                                   state.running ||\n                                   (state.last && !state.last.isClassBased);\n        }\n        while (parentElement = parentElement.parent());\n\n        return !hasParent || (!allowChildAnimations && parentRunningAnimation);\n      }\n    }]);\n\n    $animateProvider.register('', ['$window', '$sniffer', '$timeout', '$$animateReflow',\n                           function($window,   $sniffer,   $timeout,   $$animateReflow) {\n      // Detect proper transitionend/animationend event names.\n      var CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;\n\n      // If unprefixed events are not supported but webkit-prefixed are, use the latter.\n      // Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.\n      // Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`\n      // but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.\n      // Register both events in case `window.onanimationend` is not supported because of that,\n      // do the same for `transitionend` as Safari is likely to exhibit similar behavior.\n      // Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit\n      // therefore there is no reason to test anymore for other vendor prefixes: http://caniuse.com/#search=transition\n      if (window.ontransitionend === undefined && window.onwebkittransitionend !== undefined) {\n        CSS_PREFIX = '-webkit-';\n        TRANSITION_PROP = 'WebkitTransition';\n        TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';\n      } else {\n        TRANSITION_PROP = 'transition';\n        TRANSITIONEND_EVENT = 'transitionend';\n      }\n\n      if (window.onanimationend === undefined && window.onwebkitanimationend !== undefined) {\n        CSS_PREFIX = '-webkit-';\n        ANIMATION_PROP = 'WebkitAnimation';\n        ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';\n      } else {\n        ANIMATION_PROP = 'animation';\n        ANIMATIONEND_EVENT = 'animationend';\n      }\n\n      var DURATION_KEY = 'Duration';\n      var PROPERTY_KEY = 'Property';\n      var DELAY_KEY = 'Delay';\n      var ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';\n      var ANIMATION_PLAYSTATE_KEY = 'PlayState';\n      var NG_ANIMATE_PARENT_KEY = '$$ngAnimateKey';\n      var NG_ANIMATE_CSS_DATA_KEY = '$$ngAnimateCSS3Data';\n      var ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\n      var CLOSING_TIME_BUFFER = 1.5;\n      var ONE_SECOND = 1000;\n\n      var lookupCache = {};\n      var parentCounter = 0;\n      var animationReflowQueue = [];\n      var cancelAnimationReflow;\n      function clearCacheAfterReflow() {\n        if (!cancelAnimationReflow) {\n          cancelAnimationReflow = $$animateReflow(function() {\n            animationReflowQueue = [];\n            cancelAnimationReflow = null;\n            lookupCache = {};\n          });\n        }\n      }\n\n      function afterReflow(element, callback) {\n        if (cancelAnimationReflow) {\n          cancelAnimationReflow();\n        }\n        animationReflowQueue.push(callback);\n        cancelAnimationReflow = $$animateReflow(function() {\n          forEach(animationReflowQueue, function(fn) {\n            fn();\n          });\n\n          animationReflowQueue = [];\n          cancelAnimationReflow = null;\n          lookupCache = {};\n        });\n      }\n\n      var closingTimer = null;\n      var closingTimestamp = 0;\n      var animationElementQueue = [];\n      function animationCloseHandler(element, totalTime) {\n        var node = extractElementNode(element);\n        element = angular.element(node);\n\n        //this item will be garbage collected by the closing\n        //animation timeout\n        animationElementQueue.push(element);\n\n        //but it may not need to cancel out the existing timeout\n        //if the timestamp is less than the previous one\n        var futureTimestamp = Date.now() + totalTime;\n        if (futureTimestamp <= closingTimestamp) {\n          return;\n        }\n\n        $timeout.cancel(closingTimer);\n\n        closingTimestamp = futureTimestamp;\n        closingTimer = $timeout(function() {\n          closeAllAnimations(animationElementQueue);\n          animationElementQueue = [];\n        }, totalTime, false);\n      }\n\n      function closeAllAnimations(elements) {\n        forEach(elements, function(element) {\n          var elementData = element.data(NG_ANIMATE_CSS_DATA_KEY);\n          if (elementData) {\n            forEach(elementData.closeAnimationFns, function(fn) {\n              fn();\n            });\n          }\n        });\n      }\n\n      function getElementAnimationDetails(element, cacheKey) {\n        var data = cacheKey ? lookupCache[cacheKey] : null;\n        if (!data) {\n          var transitionDuration = 0;\n          var transitionDelay = 0;\n          var animationDuration = 0;\n          var animationDelay = 0;\n\n          //we want all the styles defined before and after\n          forEach(element, function(element) {\n            if (element.nodeType == ELEMENT_NODE) {\n              var elementStyles = $window.getComputedStyle(element) || {};\n\n              var transitionDurationStyle = elementStyles[TRANSITION_PROP + DURATION_KEY];\n              transitionDuration = Math.max(parseMaxTime(transitionDurationStyle), transitionDuration);\n\n              var transitionDelayStyle = elementStyles[TRANSITION_PROP + DELAY_KEY];\n              transitionDelay  = Math.max(parseMaxTime(transitionDelayStyle), transitionDelay);\n\n              var animationDelayStyle = elementStyles[ANIMATION_PROP + DELAY_KEY];\n              animationDelay   = Math.max(parseMaxTime(elementStyles[ANIMATION_PROP + DELAY_KEY]), animationDelay);\n\n              var aDuration  = parseMaxTime(elementStyles[ANIMATION_PROP + DURATION_KEY]);\n\n              if (aDuration > 0) {\n                aDuration *= parseInt(elementStyles[ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY], 10) || 1;\n              }\n              animationDuration = Math.max(aDuration, animationDuration);\n            }\n          });\n          data = {\n            total: 0,\n            transitionDelay: transitionDelay,\n            transitionDuration: transitionDuration,\n            animationDelay: animationDelay,\n            animationDuration: animationDuration\n          };\n          if (cacheKey) {\n            lookupCache[cacheKey] = data;\n          }\n        }\n        return data;\n      }\n\n      function parseMaxTime(str) {\n        var maxValue = 0;\n        var values = isString(str) ?\n          str.split(/\\s*,\\s*/) :\n          [];\n        forEach(values, function(value) {\n          maxValue = Math.max(parseFloat(value) || 0, maxValue);\n        });\n        return maxValue;\n      }\n\n      function getCacheKey(element) {\n        var parentElement = element.parent();\n        var parentID = parentElement.data(NG_ANIMATE_PARENT_KEY);\n        if (!parentID) {\n          parentElement.data(NG_ANIMATE_PARENT_KEY, ++parentCounter);\n          parentID = parentCounter;\n        }\n        return parentID + '-' + extractElementNode(element).getAttribute('class');\n      }\n\n      function animateSetup(animationEvent, element, className, styles) {\n        var structural = ['ng-enter','ng-leave','ng-move'].indexOf(className) >= 0;\n\n        var cacheKey = getCacheKey(element);\n        var eventCacheKey = cacheKey + ' ' + className;\n        var itemIndex = lookupCache[eventCacheKey] ? ++lookupCache[eventCacheKey].total : 0;\n\n        var stagger = {};\n        if (itemIndex > 0) {\n          var staggerClassName = className + '-stagger';\n          var staggerCacheKey = cacheKey + ' ' + staggerClassName;\n          var applyClasses = !lookupCache[staggerCacheKey];\n\n          applyClasses && $$jqLite.addClass(element, staggerClassName);\n\n          stagger = getElementAnimationDetails(element, staggerCacheKey);\n\n          applyClasses && $$jqLite.removeClass(element, staggerClassName);\n        }\n\n        $$jqLite.addClass(element, className);\n\n        var formerData = element.data(NG_ANIMATE_CSS_DATA_KEY) || {};\n        var timings = getElementAnimationDetails(element, eventCacheKey);\n        var transitionDuration = timings.transitionDuration;\n        var animationDuration = timings.animationDuration;\n\n        if (structural && transitionDuration === 0 && animationDuration === 0) {\n          $$jqLite.removeClass(element, className);\n          return false;\n        }\n\n        var blockTransition = styles || (structural && transitionDuration > 0);\n        var blockAnimation = animationDuration > 0 &&\n                             stagger.animationDelay > 0 &&\n                             stagger.animationDuration === 0;\n\n        var closeAnimationFns = formerData.closeAnimationFns || [];\n        element.data(NG_ANIMATE_CSS_DATA_KEY, {\n          stagger: stagger,\n          cacheKey: eventCacheKey,\n          running: formerData.running || 0,\n          itemIndex: itemIndex,\n          blockTransition: blockTransition,\n          closeAnimationFns: closeAnimationFns\n        });\n\n        var node = extractElementNode(element);\n\n        if (blockTransition) {\n          blockTransitions(node, true);\n          if (styles) {\n            element.css(styles);\n          }\n        }\n\n        if (blockAnimation) {\n          blockAnimations(node, true);\n        }\n\n        return true;\n      }\n\n      function animateRun(animationEvent, element, className, activeAnimationComplete, styles) {\n        var node = extractElementNode(element);\n        var elementData = element.data(NG_ANIMATE_CSS_DATA_KEY);\n        if (node.getAttribute('class').indexOf(className) == -1 || !elementData) {\n          activeAnimationComplete();\n          return;\n        }\n\n        var activeClassName = '';\n        var pendingClassName = '';\n        forEach(className.split(' '), function(klass, i) {\n          var prefix = (i > 0 ? ' ' : '') + klass;\n          activeClassName += prefix + '-active';\n          pendingClassName += prefix + '-pending';\n        });\n\n        var style = '';\n        var appliedStyles = [];\n        var itemIndex = elementData.itemIndex;\n        var stagger = elementData.stagger;\n        var staggerTime = 0;\n        if (itemIndex > 0) {\n          var transitionStaggerDelay = 0;\n          if (stagger.transitionDelay > 0 && stagger.transitionDuration === 0) {\n            transitionStaggerDelay = stagger.transitionDelay * itemIndex;\n          }\n\n          var animationStaggerDelay = 0;\n          if (stagger.animationDelay > 0 && stagger.animationDuration === 0) {\n            animationStaggerDelay = stagger.animationDelay * itemIndex;\n            appliedStyles.push(CSS_PREFIX + 'animation-play-state');\n          }\n\n          staggerTime = Math.round(Math.max(transitionStaggerDelay, animationStaggerDelay) * 100) / 100;\n        }\n\n        if (!staggerTime) {\n          $$jqLite.addClass(element, activeClassName);\n          if (elementData.blockTransition) {\n            blockTransitions(node, false);\n          }\n        }\n\n        var eventCacheKey = elementData.cacheKey + ' ' + activeClassName;\n        var timings = getElementAnimationDetails(element, eventCacheKey);\n        var maxDuration = Math.max(timings.transitionDuration, timings.animationDuration);\n        if (maxDuration === 0) {\n          $$jqLite.removeClass(element, activeClassName);\n          animateClose(element, className);\n          activeAnimationComplete();\n          return;\n        }\n\n        if (!staggerTime && styles && Object.keys(styles).length > 0) {\n          if (!timings.transitionDuration) {\n            element.css('transition', timings.animationDuration + 's linear all');\n            appliedStyles.push('transition');\n          }\n          element.css(styles);\n        }\n\n        var maxDelay = Math.max(timings.transitionDelay, timings.animationDelay);\n        var maxDelayTime = maxDelay * ONE_SECOND;\n\n        if (appliedStyles.length > 0) {\n          //the element being animated may sometimes contain comment nodes in\n          //the jqLite object, so we're safe to use a single variable to house\n          //the styles since there is always only one element being animated\n          var oldStyle = node.getAttribute('style') || '';\n          if (oldStyle.charAt(oldStyle.length - 1) !== ';') {\n            oldStyle += ';';\n          }\n          node.setAttribute('style', oldStyle + ' ' + style);\n        }\n\n        var startTime = Date.now();\n        var css3AnimationEvents = ANIMATIONEND_EVENT + ' ' + TRANSITIONEND_EVENT;\n        var animationTime     = (maxDelay + maxDuration) * CLOSING_TIME_BUFFER;\n        var totalTime         = (staggerTime + animationTime) * ONE_SECOND;\n\n        var staggerTimeout;\n        if (staggerTime > 0) {\n          $$jqLite.addClass(element, pendingClassName);\n          staggerTimeout = $timeout(function() {\n            staggerTimeout = null;\n\n            if (timings.transitionDuration > 0) {\n              blockTransitions(node, false);\n            }\n            if (timings.animationDuration > 0) {\n              blockAnimations(node, false);\n            }\n\n            $$jqLite.addClass(element, activeClassName);\n            $$jqLite.removeClass(element, pendingClassName);\n\n            if (styles) {\n              if (timings.transitionDuration === 0) {\n                element.css('transition', timings.animationDuration + 's linear all');\n              }\n              element.css(styles);\n              appliedStyles.push('transition');\n            }\n          }, staggerTime * ONE_SECOND, false);\n        }\n\n        element.on(css3AnimationEvents, onAnimationProgress);\n        elementData.closeAnimationFns.push(function() {\n          onEnd();\n          activeAnimationComplete();\n        });\n\n        elementData.running++;\n        animationCloseHandler(element, totalTime);\n        return onEnd;\n\n        // This will automatically be called by $animate so\n        // there is no need to attach this internally to the\n        // timeout done method.\n        function onEnd() {\n          element.off(css3AnimationEvents, onAnimationProgress);\n          $$jqLite.removeClass(element, activeClassName);\n          $$jqLite.removeClass(element, pendingClassName);\n          if (staggerTimeout) {\n            $timeout.cancel(staggerTimeout);\n          }\n          animateClose(element, className);\n          var node = extractElementNode(element);\n          for (var i in appliedStyles) {\n            node.style.removeProperty(appliedStyles[i]);\n          }\n        }\n\n        function onAnimationProgress(event) {\n          event.stopPropagation();\n          var ev = event.originalEvent || event;\n          var timeStamp = ev.$manualTimeStamp || ev.timeStamp || Date.now();\n\n          /* Firefox (or possibly just Gecko) likes to not round values up\n           * when a ms measurement is used for the animation */\n          var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));\n\n          /* $manualTimeStamp is a mocked timeStamp value which is set\n           * within browserTrigger(). This is only here so that tests can\n           * mock animations properly. Real events fallback to event.timeStamp,\n           * or, if they don't, then a timeStamp is automatically created for them.\n           * We're checking to see if the timeStamp surpasses the expected delay,\n           * but we're using elapsedTime instead of the timeStamp on the 2nd\n           * pre-condition since animations sometimes close off early */\n          if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n            activeAnimationComplete();\n          }\n        }\n      }\n\n      function blockTransitions(node, bool) {\n        node.style[TRANSITION_PROP + PROPERTY_KEY] = bool ? 'none' : '';\n      }\n\n      function blockAnimations(node, bool) {\n        node.style[ANIMATION_PROP + ANIMATION_PLAYSTATE_KEY] = bool ? 'paused' : '';\n      }\n\n      function animateBefore(animationEvent, element, className, styles) {\n        if (animateSetup(animationEvent, element, className, styles)) {\n          return function(cancelled) {\n            cancelled && animateClose(element, className);\n          };\n        }\n      }\n\n      function animateAfter(animationEvent, element, className, afterAnimationComplete, styles) {\n        if (element.data(NG_ANIMATE_CSS_DATA_KEY)) {\n          return animateRun(animationEvent, element, className, afterAnimationComplete, styles);\n        } else {\n          animateClose(element, className);\n          afterAnimationComplete();\n        }\n      }\n\n      function animate(animationEvent, element, className, animationComplete, options) {\n        //If the animateSetup function doesn't bother returning a\n        //cancellation function then it means that there is no animation\n        //to perform at all\n        var preReflowCancellation = animateBefore(animationEvent, element, className, options.from);\n        if (!preReflowCancellation) {\n          clearCacheAfterReflow();\n          animationComplete();\n          return;\n        }\n\n        //There are two cancellation functions: one is before the first\n        //reflow animation and the second is during the active state\n        //animation. The first function will take care of removing the\n        //data from the element which will not make the 2nd animation\n        //happen in the first place\n        var cancel = preReflowCancellation;\n        afterReflow(element, function() {\n          //once the reflow is complete then we point cancel to\n          //the new cancellation function which will remove all of the\n          //animation properties from the active animation\n          cancel = animateAfter(animationEvent, element, className, animationComplete, options.to);\n        });\n\n        return function(cancelled) {\n          (cancel || noop)(cancelled);\n        };\n      }\n\n      function animateClose(element, className) {\n        $$jqLite.removeClass(element, className);\n        var data = element.data(NG_ANIMATE_CSS_DATA_KEY);\n        if (data) {\n          if (data.running) {\n            data.running--;\n          }\n          if (!data.running || data.running === 0) {\n            element.removeData(NG_ANIMATE_CSS_DATA_KEY);\n          }\n        }\n      }\n\n      return {\n        animate: function(element, className, from, to, animationCompleted, options) {\n          options = options || {};\n          options.from = from;\n          options.to = to;\n          return animate('animate', element, className, animationCompleted, options);\n        },\n\n        enter: function(element, animationCompleted, options) {\n          options = options || {};\n          return animate('enter', element, 'ng-enter', animationCompleted, options);\n        },\n\n        leave: function(element, animationCompleted, options) {\n          options = options || {};\n          return animate('leave', element, 'ng-leave', animationCompleted, options);\n        },\n\n        move: function(element, animationCompleted, options) {\n          options = options || {};\n          return animate('move', element, 'ng-move', animationCompleted, options);\n        },\n\n        beforeSetClass: function(element, add, remove, animationCompleted, options) {\n          options = options || {};\n          var className = suffixClasses(remove, '-remove') + ' ' +\n                          suffixClasses(add, '-add');\n          var cancellationMethod = animateBefore('setClass', element, className, options.from);\n          if (cancellationMethod) {\n            afterReflow(element, animationCompleted);\n            return cancellationMethod;\n          }\n          clearCacheAfterReflow();\n          animationCompleted();\n        },\n\n        beforeAddClass: function(element, className, animationCompleted, options) {\n          options = options || {};\n          var cancellationMethod = animateBefore('addClass', element, suffixClasses(className, '-add'), options.from);\n          if (cancellationMethod) {\n            afterReflow(element, animationCompleted);\n            return cancellationMethod;\n          }\n          clearCacheAfterReflow();\n          animationCompleted();\n        },\n\n        beforeRemoveClass: function(element, className, animationCompleted, options) {\n          options = options || {};\n          var cancellationMethod = animateBefore('removeClass', element, suffixClasses(className, '-remove'), options.from);\n          if (cancellationMethod) {\n            afterReflow(element, animationCompleted);\n            return cancellationMethod;\n          }\n          clearCacheAfterReflow();\n          animationCompleted();\n        },\n\n        setClass: function(element, add, remove, animationCompleted, options) {\n          options = options || {};\n          remove = suffixClasses(remove, '-remove');\n          add = suffixClasses(add, '-add');\n          var className = remove + ' ' + add;\n          return animateAfter('setClass', element, className, animationCompleted, options.to);\n        },\n\n        addClass: function(element, className, animationCompleted, options) {\n          options = options || {};\n          return animateAfter('addClass', element, suffixClasses(className, '-add'), animationCompleted, options.to);\n        },\n\n        removeClass: function(element, className, animationCompleted, options) {\n          options = options || {};\n          return animateAfter('removeClass', element, suffixClasses(className, '-remove'), animationCompleted, options.to);\n        }\n      };\n\n      function suffixClasses(classes, suffix) {\n        var className = '';\n        classes = isArray(classes) ? classes : classes.split(/\\s+/);\n        forEach(classes, function(klass, i) {\n          if (klass && klass.length > 0) {\n            className += (i > 0 ? ' ' : '') + klass + suffix;\n          }\n        });\n        return className;\n      }\n    }]);\n  }]);\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.3/angular-mocks.js",
    "content": "/**\n * @license AngularJS v1.3.20\n * (c) 2010-2014 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular, undefined) {\n\n'use strict';\n\n/**\n * @ngdoc object\n * @name angular.mock\n * @description\n *\n * Namespace from 'angular-mocks.js' which contains testing related code.\n */\nangular.mock = {};\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n *\n * @description\n * This service is a mock implementation of {@link ng.$browser}. It provides fake\n * implementation for commonly used browser apis that are hard to test, e.g. setTimeout, xhr,\n * cookies, etc...\n *\n * The api of this service is the same as that of the real {@link ng.$browser $browser}, except\n * that there are several helper methods available which can be used in tests.\n */\nangular.mock.$BrowserProvider = function() {\n  this.$get = function() {\n    return new angular.mock.$Browser();\n  };\n};\n\nangular.mock.$Browser = function() {\n  var self = this;\n\n  this.isMock = true;\n  self.$$url = \"http://server/\";\n  self.$$lastUrl = self.$$url; // used by url polling fn\n  self.pollFns = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = angular.noop;\n  self.$$incOutstandingRequestCount = angular.noop;\n\n\n  // register url polling fn\n\n  self.onUrlChange = function(listener) {\n    self.pollFns.push(\n      function() {\n        if (self.$$lastUrl !== self.$$url || self.$$state !== self.$$lastState) {\n          self.$$lastUrl = self.$$url;\n          self.$$lastState = self.$$state;\n          listener(self.$$url, self.$$state);\n        }\n      }\n    );\n\n    return listener;\n  };\n\n  self.$$checkUrlChange = angular.noop;\n\n  self.cookieHash = {};\n  self.lastCookieHash = {};\n  self.deferredFns = [];\n  self.deferredNextId = 0;\n\n  self.defer = function(fn, delay) {\n    delay = delay || 0;\n    self.deferredFns.push({time:(self.defer.now + delay), fn:fn, id: self.deferredNextId});\n    self.deferredFns.sort(function(a, b) { return a.time - b.time;});\n    return self.deferredNextId++;\n  };\n\n\n  /**\n   * @name $browser#defer.now\n   *\n   * @description\n   * Current milliseconds mock time.\n   */\n  self.defer.now = 0;\n\n\n  self.defer.cancel = function(deferId) {\n    var fnIndex;\n\n    angular.forEach(self.deferredFns, function(fn, index) {\n      if (fn.id === deferId) fnIndex = index;\n    });\n\n    if (fnIndex !== undefined) {\n      self.deferredFns.splice(fnIndex, 1);\n      return true;\n    }\n\n    return false;\n  };\n\n\n  /**\n   * @name $browser#defer.flush\n   *\n   * @description\n   * Flushes all pending requests and executes the defer callbacks.\n   *\n   * @param {number=} number of milliseconds to flush. See {@link #defer.now}\n   */\n  self.defer.flush = function(delay) {\n    if (angular.isDefined(delay)) {\n      self.defer.now += delay;\n    } else {\n      if (self.deferredFns.length) {\n        self.defer.now = self.deferredFns[self.deferredFns.length - 1].time;\n      } else {\n        throw new Error('No deferred tasks to be flushed');\n      }\n    }\n\n    while (self.deferredFns.length && self.deferredFns[0].time <= self.defer.now) {\n      self.deferredFns.shift().fn();\n    }\n  };\n\n  self.$$baseHref = '/';\n  self.baseHref = function() {\n    return this.$$baseHref;\n  };\n};\nangular.mock.$Browser.prototype = {\n\n/**\n  * @name $browser#poll\n  *\n  * @description\n  * run all fns in pollFns\n  */\n  poll: function poll() {\n    angular.forEach(this.pollFns, function(pollFn) {\n      pollFn();\n    });\n  },\n\n  addPollFn: function(pollFn) {\n    this.pollFns.push(pollFn);\n    return pollFn;\n  },\n\n  url: function(url, replace, state) {\n    if (angular.isUndefined(state)) {\n      state = null;\n    }\n    if (url) {\n      this.$$url = url;\n      // Native pushState serializes & copies the object; simulate it.\n      this.$$state = angular.copy(state);\n      return this;\n    }\n\n    return this.$$url;\n  },\n\n  state: function() {\n    return this.$$state;\n  },\n\n  cookies:  function(name, value) {\n    if (name) {\n      if (angular.isUndefined(value)) {\n        delete this.cookieHash[name];\n      } else {\n        if (angular.isString(value) &&       //strings only\n            value.length <= 4096) {          //strict cookie storage limits\n          this.cookieHash[name] = value;\n        }\n      }\n    } else {\n      if (!angular.equals(this.cookieHash, this.lastCookieHash)) {\n        this.lastCookieHash = angular.copy(this.cookieHash);\n        this.cookieHash = angular.copy(this.cookieHash);\n      }\n      return this.cookieHash;\n    }\n  },\n\n  notifyWhenNoOutstandingRequests: function(fn) {\n    fn();\n  }\n};\n\n\n/**\n * @ngdoc provider\n * @name $exceptionHandlerProvider\n *\n * @description\n * Configures the mock implementation of {@link ng.$exceptionHandler} to rethrow or to log errors\n * passed to the `$exceptionHandler`.\n */\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n *\n * @description\n * Mock implementation of {@link ng.$exceptionHandler} that rethrows or logs errors passed\n * to it. See {@link ngMock.$exceptionHandlerProvider $exceptionHandlerProvider} for configuration\n * information.\n *\n *\n * ```js\n *   describe('$exceptionHandlerProvider', function() {\n *\n *     it('should capture log messages and exceptions', function() {\n *\n *       module(function($exceptionHandlerProvider) {\n *         $exceptionHandlerProvider.mode('log');\n *       });\n *\n *       inject(function($log, $exceptionHandler, $timeout) {\n *         $timeout(function() { $log.log(1); });\n *         $timeout(function() { $log.log(2); throw 'banana peel'; });\n *         $timeout(function() { $log.log(3); });\n *         expect($exceptionHandler.errors).toEqual([]);\n *         expect($log.assertEmpty());\n *         $timeout.flush();\n *         expect($exceptionHandler.errors).toEqual(['banana peel']);\n *         expect($log.log.logs).toEqual([[1], [2], [3]]);\n *       });\n *     });\n *   });\n * ```\n */\n\nangular.mock.$ExceptionHandlerProvider = function() {\n  var handler;\n\n  /**\n   * @ngdoc method\n   * @name $exceptionHandlerProvider#mode\n   *\n   * @description\n   * Sets the logging mode.\n   *\n   * @param {string} mode Mode of operation, defaults to `rethrow`.\n   *\n   *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log`\n   *            mode stores an array of errors in `$exceptionHandler.errors`, to allow later\n   *            assertion of them. See {@link ngMock.$log#assertEmpty assertEmpty()} and\n   *            {@link ngMock.$log#reset reset()}\n   *   - `rethrow`: If any errors are passed to the handler in tests, it typically means that there\n   *                is a bug in the application or test, so this mock will make these tests fail.\n   *                For any implementations that expect exceptions to be thrown, the `rethrow` mode\n   *                will also maintain a log of thrown errors.\n   */\n  this.mode = function(mode) {\n\n    switch (mode) {\n      case 'log':\n      case 'rethrow':\n        var errors = [];\n        handler = function(e) {\n          if (arguments.length == 1) {\n            errors.push(e);\n          } else {\n            errors.push([].slice.call(arguments, 0));\n          }\n          if (mode === \"rethrow\") {\n            throw e;\n          }\n        };\n        handler.errors = errors;\n        break;\n      default:\n        throw new Error(\"Unknown mode '\" + mode + \"', only 'log'/'rethrow' modes are allowed!\");\n    }\n  };\n\n  this.$get = function() {\n    return handler;\n  };\n\n  this.mode('rethrow');\n};\n\n\n/**\n * @ngdoc service\n * @name $log\n *\n * @description\n * Mock implementation of {@link ng.$log} that gathers all logged messages in arrays\n * (one array per logging level). These arrays are exposed as `logs` property of each of the\n * level-specific log function, e.g. for level `error` the array is exposed as `$log.error.logs`.\n *\n */\nangular.mock.$LogProvider = function() {\n  var debug = true;\n\n  function concat(array1, array2, index) {\n    return array1.concat(Array.prototype.slice.call(array2, index));\n  }\n\n  this.debugEnabled = function(flag) {\n    if (angular.isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = function() {\n    var $log = {\n      log: function() { $log.log.logs.push(concat([], arguments, 0)); },\n      warn: function() { $log.warn.logs.push(concat([], arguments, 0)); },\n      info: function() { $log.info.logs.push(concat([], arguments, 0)); },\n      error: function() { $log.error.logs.push(concat([], arguments, 0)); },\n      debug: function() {\n        if (debug) {\n          $log.debug.logs.push(concat([], arguments, 0));\n        }\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#reset\n     *\n     * @description\n     * Reset all of the logging arrays to empty.\n     */\n    $log.reset = function() {\n      /**\n       * @ngdoc property\n       * @name $log#log.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#log `log()`}.\n       *\n       * @example\n       * ```js\n       * $log.log('Some Log');\n       * var first = $log.log.logs.unshift();\n       * ```\n       */\n      $log.log.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#info.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#info `info()`}.\n       *\n       * @example\n       * ```js\n       * $log.info('Some Info');\n       * var first = $log.info.logs.unshift();\n       * ```\n       */\n      $log.info.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#warn.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#warn `warn()`}.\n       *\n       * @example\n       * ```js\n       * $log.warn('Some Warning');\n       * var first = $log.warn.logs.unshift();\n       * ```\n       */\n      $log.warn.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#error.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#error `error()`}.\n       *\n       * @example\n       * ```js\n       * $log.error('Some Error');\n       * var first = $log.error.logs.unshift();\n       * ```\n       */\n      $log.error.logs = [];\n        /**\n       * @ngdoc property\n       * @name $log#debug.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#debug `debug()`}.\n       *\n       * @example\n       * ```js\n       * $log.debug('Some Error');\n       * var first = $log.debug.logs.unshift();\n       * ```\n       */\n      $log.debug.logs = [];\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#assertEmpty\n     *\n     * @description\n     * Assert that all of the logging methods have no logged messages. If any messages are present,\n     * an exception is thrown.\n     */\n    $log.assertEmpty = function() {\n      var errors = [];\n      angular.forEach(['error', 'warn', 'info', 'log', 'debug'], function(logLevel) {\n        angular.forEach($log[logLevel].logs, function(log) {\n          angular.forEach(log, function(logItem) {\n            errors.push('MOCK $log (' + logLevel + '): ' + String(logItem) + '\\n' +\n                        (logItem.stack || ''));\n          });\n        });\n      });\n      if (errors.length) {\n        errors.unshift(\"Expected $log to be empty! Either a message was logged unexpectedly, or \" +\n          \"an expected log message was not checked and removed:\");\n        errors.push('');\n        throw new Error(errors.join('\\n---------\\n'));\n      }\n    };\n\n    $log.reset();\n    return $log;\n  };\n};\n\n\n/**\n * @ngdoc service\n * @name $interval\n *\n * @description\n * Mock implementation of the $interval service.\n *\n * Use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n * time.\n *\n * @param {function()} fn A function that should be called repeatedly.\n * @param {number} delay Number of milliseconds between each function call.\n * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n *   indefinitely.\n * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n * @returns {promise} A promise which will be notified on each iteration.\n */\nangular.mock.$IntervalProvider = function() {\n  this.$get = ['$browser', '$rootScope', '$q', '$$q',\n       function($browser,   $rootScope,   $q,   $$q) {\n    var repeatFns = [],\n        nextRepeatId = 0,\n        now = 0;\n\n    var $interval = function(fn, delay, count, invokeApply) {\n      var iteration = 0,\n          skipApply = (angular.isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = (angular.isDefined(count)) ? count : 0;\n      promise.then(null, null, fn);\n\n      promise.$$intervalId = nextRepeatId;\n\n      function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          var fnIndex;\n          deferred.resolve(iteration);\n\n          angular.forEach(repeatFns, function(fn, index) {\n            if (fn.id === promise.$$intervalId) fnIndex = index;\n          });\n\n          if (fnIndex !== undefined) {\n            repeatFns.splice(fnIndex, 1);\n          }\n        }\n\n        if (skipApply) {\n          $browser.defer.flush();\n        } else {\n          $rootScope.$apply();\n        }\n      }\n\n      repeatFns.push({\n        nextTime:(now + delay),\n        delay: delay,\n        fn: tick,\n        id: nextRepeatId,\n        deferred: deferred\n      });\n      repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n\n      nextRepeatId++;\n      return promise;\n    };\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {promise} promise A promise from calling the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully cancelled.\n     */\n    $interval.cancel = function(promise) {\n      if (!promise) return false;\n      var fnIndex;\n\n      angular.forEach(repeatFns, function(fn, index) {\n        if (fn.id === promise.$$intervalId) fnIndex = index;\n      });\n\n      if (fnIndex !== undefined) {\n        repeatFns[fnIndex].deferred.reject('canceled');\n        repeatFns.splice(fnIndex, 1);\n        return true;\n      }\n\n      return false;\n    };\n\n    /**\n     * @ngdoc method\n     * @name $interval#flush\n     * @description\n     *\n     * Runs interval tasks scheduled to be run in the next `millis` milliseconds.\n     *\n     * @param {number=} millis maximum timeout amount to flush up until.\n     *\n     * @return {number} The amount of time moved forward.\n     */\n    $interval.flush = function(millis) {\n      now += millis;\n      while (repeatFns.length && repeatFns[0].nextTime <= now) {\n        var task = repeatFns[0];\n        task.fn();\n        task.nextTime += task.delay;\n        repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n      }\n      return millis;\n    };\n\n    return $interval;\n  }];\n};\n\n\n/* jshint -W101 */\n/* The R_ISO8061_STR regex is never going to fit into the 100 char limit!\n * This directive should go inside the anonymous function but a bug in JSHint means that it would\n * not be enacted early enough to prevent the warning.\n */\nvar R_ISO8061_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?:\\:?(\\d\\d)(?:\\:?(\\d\\d)(?:\\.(\\d{3}))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d)))?$/;\n\nfunction jsonStringToDate(string) {\n  var match;\n  if (match = string.match(R_ISO8061_STR)) {\n    var date = new Date(0),\n        tzHour = 0,\n        tzMin  = 0;\n    if (match[9]) {\n      tzHour = int(match[9] + match[10]);\n      tzMin = int(match[9] + match[11]);\n    }\n    date.setUTCFullYear(int(match[1]), int(match[2]) - 1, int(match[3]));\n    date.setUTCHours(int(match[4] || 0) - tzHour,\n                     int(match[5] || 0) - tzMin,\n                     int(match[6] || 0),\n                     int(match[7] || 0));\n    return date;\n  }\n  return string;\n}\n\nfunction int(str) {\n  return parseInt(str, 10);\n}\n\nfunction padNumber(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while (num.length < digits) num = '0' + num;\n  if (trim)\n    num = num.substr(num.length - digits);\n  return neg + num;\n}\n\n\n/**\n * @ngdoc type\n * @name angular.mock.TzDate\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.\n *\n * Mock of the Date type which has its timezone specified via constructor arg.\n *\n * The main purpose is to create Date-like instances with timezone fixed to the specified timezone\n * offset, so that we can test code that depends on local timezone settings without dependency on\n * the time zone settings of the machine where the code is running.\n *\n * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)\n * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*\n *\n * @example\n * !!!! WARNING !!!!!\n * This is not a complete Date object so only methods that were implemented can be called safely.\n * To make matters worse, TzDate instances inherit stuff from Date via a prototype.\n *\n * We do our best to intercept calls to \"unimplemented\" methods, but since the list of methods is\n * incomplete we might be missing some non-standard methods. This can result in errors like:\n * \"Date.prototype.foo called on incompatible Object\".\n *\n * ```js\n * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');\n * newYearInBratislava.getTimezoneOffset() => -60;\n * newYearInBratislava.getFullYear() => 2010;\n * newYearInBratislava.getMonth() => 0;\n * newYearInBratislava.getDate() => 1;\n * newYearInBratislava.getHours() => 0;\n * newYearInBratislava.getMinutes() => 0;\n * newYearInBratislava.getSeconds() => 0;\n * ```\n *\n */\nangular.mock.TzDate = function(offset, timestamp) {\n  var self = new Date(0);\n  if (angular.isString(timestamp)) {\n    var tsStr = timestamp;\n\n    self.origDate = jsonStringToDate(timestamp);\n\n    timestamp = self.origDate.getTime();\n    if (isNaN(timestamp))\n      throw {\n        name: \"Illegal Argument\",\n        message: \"Arg '\" + tsStr + \"' passed into TzDate constructor is not a valid date string\"\n      };\n  } else {\n    self.origDate = new Date(timestamp);\n  }\n\n  var localOffset = new Date(timestamp).getTimezoneOffset();\n  self.offsetDiff = localOffset * 60 * 1000 - offset * 1000 * 60 * 60;\n  self.date = new Date(timestamp + self.offsetDiff);\n\n  self.getTime = function() {\n    return self.date.getTime() - self.offsetDiff;\n  };\n\n  self.toLocaleDateString = function() {\n    return self.date.toLocaleDateString();\n  };\n\n  self.getFullYear = function() {\n    return self.date.getFullYear();\n  };\n\n  self.getMonth = function() {\n    return self.date.getMonth();\n  };\n\n  self.getDate = function() {\n    return self.date.getDate();\n  };\n\n  self.getHours = function() {\n    return self.date.getHours();\n  };\n\n  self.getMinutes = function() {\n    return self.date.getMinutes();\n  };\n\n  self.getSeconds = function() {\n    return self.date.getSeconds();\n  };\n\n  self.getMilliseconds = function() {\n    return self.date.getMilliseconds();\n  };\n\n  self.getTimezoneOffset = function() {\n    return offset * 60;\n  };\n\n  self.getUTCFullYear = function() {\n    return self.origDate.getUTCFullYear();\n  };\n\n  self.getUTCMonth = function() {\n    return self.origDate.getUTCMonth();\n  };\n\n  self.getUTCDate = function() {\n    return self.origDate.getUTCDate();\n  };\n\n  self.getUTCHours = function() {\n    return self.origDate.getUTCHours();\n  };\n\n  self.getUTCMinutes = function() {\n    return self.origDate.getUTCMinutes();\n  };\n\n  self.getUTCSeconds = function() {\n    return self.origDate.getUTCSeconds();\n  };\n\n  self.getUTCMilliseconds = function() {\n    return self.origDate.getUTCMilliseconds();\n  };\n\n  self.getDay = function() {\n    return self.date.getDay();\n  };\n\n  // provide this method only on browsers that already have it\n  if (self.toISOString) {\n    self.toISOString = function() {\n      return padNumber(self.origDate.getUTCFullYear(), 4) + '-' +\n            padNumber(self.origDate.getUTCMonth() + 1, 2) + '-' +\n            padNumber(self.origDate.getUTCDate(), 2) + 'T' +\n            padNumber(self.origDate.getUTCHours(), 2) + ':' +\n            padNumber(self.origDate.getUTCMinutes(), 2) + ':' +\n            padNumber(self.origDate.getUTCSeconds(), 2) + '.' +\n            padNumber(self.origDate.getUTCMilliseconds(), 3) + 'Z';\n    };\n  }\n\n  //hide all methods not implemented in this mock that the Date prototype exposes\n  var unimplementedMethods = ['getUTCDay',\n      'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',\n      'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',\n      'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',\n      'setYear', 'toDateString', 'toGMTString', 'toJSON', 'toLocaleFormat', 'toLocaleString',\n      'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];\n\n  angular.forEach(unimplementedMethods, function(methodName) {\n    self[methodName] = function() {\n      throw new Error(\"Method '\" + methodName + \"' is not implemented in the TzDate mock\");\n    };\n  });\n\n  return self;\n};\n\n//make \"tzDateInstance instanceof Date\" return true\nangular.mock.TzDate.prototype = Date.prototype;\n/* jshint +W101 */\n\nangular.mock.animate = angular.module('ngAnimateMock', ['ng'])\n\n  .config(['$provide', function($provide) {\n\n    var reflowQueue = [];\n    $provide.value('$$animateReflow', function(fn) {\n      var index = reflowQueue.length;\n      reflowQueue.push(fn);\n      return function cancel() {\n        reflowQueue.splice(index, 1);\n      };\n    });\n\n    $provide.decorator('$animate', ['$delegate', '$$asyncCallback', '$timeout', '$browser', '$rootScope', '$$rAF',\n                            function($delegate,   $$asyncCallback,   $timeout,   $browser,   $rootScope,   $$rAF) {\n      var animate = {\n        queue: [],\n        cancel: $delegate.cancel,\n        enabled: $delegate.enabled,\n        triggerCallbackEvents: function() {\n          $$asyncCallback.flush();\n        },\n        triggerCallbackPromise: function() {\n          $timeout.flush(0);\n        },\n        triggerCallbacks: function() {\n          this.triggerCallbackEvents();\n          this.triggerCallbackPromise();\n        },\n        triggerReflow: function() {\n          angular.forEach(reflowQueue, function(fn) {\n            fn();\n          });\n          reflowQueue = [];\n        },\n        flush: function() {\n          $rootScope.$digest();\n          var doNextRun, somethingFlushed = false;\n          do {\n            doNextRun = false;\n            if (reflowQueue.length) {\n              doNextRun = somethingFlushed = true;\n              this.triggerReflow();\n            }\n            if ($$rAF.queue.length) {\n              doNextRun = somethingFlushed = true;\n              $$rAF.flush();\n            }\n            if ($$asyncCallback.queue.length) {\n              doNextRun = somethingFlushed = true;\n              this.triggerCallbackEvents();\n            }\n            if (timeoutsRemaining()) {\n              var oldValue = timeoutsRemaining();\n              this.triggerCallbackPromise();\n              var newValue = timeoutsRemaining();\n              if (newValue < oldValue) {\n                doNextRun = somethingFlushed = true;\n              }\n            }\n          } while (doNextRun);\n\n          if (!somethingFlushed) {\n            throw new Error('No pending animations ready to be closed or flushed');\n          }\n\n          $rootScope.$digest();\n\n          function timeoutsRemaining() {\n            return $browser.deferredFns.length;\n          }\n        }\n      };\n\n      angular.forEach(\n        ['animate','enter','leave','move','addClass','removeClass','setClass'], function(method) {\n        animate[method] = function() {\n          animate.queue.push({\n            event: method,\n            element: arguments[0],\n            options: arguments[arguments.length - 1],\n            args: arguments\n          });\n          return $delegate[method].apply($delegate, arguments);\n        };\n      });\n\n      return animate;\n    }]);\n\n  }]);\n\n\n/**\n * @ngdoc function\n * @name angular.mock.dump\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available function.\n *\n * Method for serializing common angular objects (scope, elements, etc..) into strings, useful for\n * debugging.\n *\n * This method is also available on window, where it can be used to display objects on debug\n * console.\n *\n * @param {*} object - any object to turn into string.\n * @return {string} a serialized string of the argument\n */\nangular.mock.dump = function(object) {\n  return serialize(object);\n\n  function serialize(object) {\n    var out;\n\n    if (angular.isElement(object)) {\n      object = angular.element(object);\n      out = angular.element('<div></div>');\n      angular.forEach(object, function(element) {\n        out.append(angular.element(element).clone());\n      });\n      out = out.html();\n    } else if (angular.isArray(object)) {\n      out = [];\n      angular.forEach(object, function(o) {\n        out.push(serialize(o));\n      });\n      out = '[ ' + out.join(', ') + ' ]';\n    } else if (angular.isObject(object)) {\n      if (angular.isFunction(object.$eval) && angular.isFunction(object.$apply)) {\n        out = serializeScope(object);\n      } else if (object instanceof Error) {\n        out = object.stack || ('' + object.name + ': ' + object.message);\n      } else {\n        // TODO(i): this prevents methods being logged,\n        // we should have a better way to serialize objects\n        out = angular.toJson(object, true);\n      }\n    } else {\n      out = String(object);\n    }\n\n    return out;\n  }\n\n  function serializeScope(scope, offset) {\n    offset = offset ||  '  ';\n    var log = [offset + 'Scope(' + scope.$id + '): {'];\n    for (var key in scope) {\n      if (Object.prototype.hasOwnProperty.call(scope, key) && !key.match(/^(\\$|this)/)) {\n        log.push('  ' + key + ': ' + angular.toJson(scope[key]));\n      }\n    }\n    var child = scope.$$childHead;\n    while (child) {\n      log.push(serializeScope(child, offset + '  '));\n      child = child.$$nextSibling;\n    }\n    log.push('}');\n    return log.join('\\n' + offset);\n  }\n};\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @description\n * Fake HTTP backend implementation suitable for unit testing applications that use the\n * {@link ng.$http $http service}.\n *\n * *Note*: For fake HTTP backend implementation suitable for end-to-end testing or backend-less\n * development please see {@link ngMockE2E.$httpBackend e2e $httpBackend mock}.\n *\n * During unit testing, we want our unit tests to run quickly and have no external dependencies so\n * we don’t want to send [XHR](https://developer.mozilla.org/en/xmlhttprequest) or\n * [JSONP](http://en.wikipedia.org/wiki/JSONP) requests to a real server. All we really need is\n * to verify whether a certain request has been sent or not, or alternatively just let the\n * application make requests, respond with pre-trained responses and assert that the end result is\n * what we expect it to be.\n *\n * This mock implementation can be used to respond with static or dynamic responses via the\n * `expect` and `when` apis and their shortcuts (`expectGET`, `whenPOST`, etc).\n *\n * When an Angular application needs some data from a server, it calls the $http service, which\n * sends the request to a real server using $httpBackend service. With dependency injection, it is\n * easy to inject $httpBackend mock (which has the same API as $httpBackend) and use it to verify\n * the requests and respond with some testing data without sending a request to a real server.\n *\n * There are two ways to specify what test data should be returned as http responses by the mock\n * backend when the code under test makes http requests:\n *\n * - `$httpBackend.expect` - specifies a request expectation\n * - `$httpBackend.when` - specifies a backend definition\n *\n *\n * # Request Expectations vs Backend Definitions\n *\n * Request expectations provide a way to make assertions about requests made by the application and\n * to define responses for those requests. The test will fail if the expected requests are not made\n * or they are made in the wrong order.\n *\n * Backend definitions allow you to define a fake backend for your application which doesn't assert\n * if a particular request was made or not, it just returns a trained response if a request is made.\n * The test will pass whether or not the request gets made during testing.\n *\n *\n * <table class=\"table\">\n *   <tr><th width=\"220px\"></th><th>Request expectations</th><th>Backend definitions</th></tr>\n *   <tr>\n *     <th>Syntax</th>\n *     <td>.expect(...).respond(...)</td>\n *     <td>.when(...).respond(...)</td>\n *   </tr>\n *   <tr>\n *     <th>Typical usage</th>\n *     <td>strict unit tests</td>\n *     <td>loose (black-box) unit testing</td>\n *   </tr>\n *   <tr>\n *     <th>Fulfills multiple requests</th>\n *     <td>NO</td>\n *     <td>YES</td>\n *   </tr>\n *   <tr>\n *     <th>Order of requests matters</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Request required</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Response required</th>\n *     <td>optional (see below)</td>\n *     <td>YES</td>\n *   </tr>\n * </table>\n *\n * In cases where both backend definitions and request expectations are specified during unit\n * testing, the request expectations are evaluated first.\n *\n * If a request expectation has no response specified, the algorithm will search your backend\n * definitions for an appropriate response.\n *\n * If a request didn't match any expectation or if the expectation doesn't have the response\n * defined, the backend definitions are evaluated in sequential order to see if any of them match\n * the request. The response from the first matched definition is returned.\n *\n *\n * # Flushing HTTP requests\n *\n * The $httpBackend used in production always responds to requests asynchronously. If we preserved\n * this behavior in unit testing, we'd have to create async unit tests, which are hard to write,\n * to follow and to maintain. But neither can the testing mock respond synchronously; that would\n * change the execution of the code under test. For this reason, the mock $httpBackend has a\n * `flush()` method, which allows the test to explicitly flush pending requests. This preserves\n * the async api of the backend, while allowing the test to execute synchronously.\n *\n *\n * # Unit testing with mock $httpBackend\n * The following code shows how to setup and use the mock backend when unit testing a controller.\n * First we create the controller under test:\n *\n  ```js\n  // The module code\n  angular\n    .module('MyApp', [])\n    .controller('MyController', MyController);\n\n  // The controller code\n  function MyController($scope, $http) {\n    var authToken;\n\n    $http.get('/auth.py').success(function(data, status, headers) {\n      authToken = headers('A-Token');\n      $scope.user = data;\n    });\n\n    $scope.saveMessage = function(message) {\n      var headers = { 'Authorization': authToken };\n      $scope.status = 'Saving...';\n\n      $http.post('/add-msg.py', message, { headers: headers } ).success(function(response) {\n        $scope.status = '';\n      }).error(function() {\n        $scope.status = 'ERROR!';\n      });\n    };\n  }\n  ```\n *\n * Now we setup the mock backend and create the test specs:\n *\n  ```js\n    // testing controller\n    describe('MyController', function() {\n       var $httpBackend, $rootScope, createController, authRequestHandler;\n\n       // Set up the module\n       beforeEach(module('MyApp'));\n\n       beforeEach(inject(function($injector) {\n         // Set up the mock http service responses\n         $httpBackend = $injector.get('$httpBackend');\n         // backend definition common for all tests\n         authRequestHandler = $httpBackend.when('GET', '/auth.py')\n                                .respond({userId: 'userX'}, {'A-Token': 'xxx'});\n\n         // Get hold of a scope (i.e. the root scope)\n         $rootScope = $injector.get('$rootScope');\n         // The $controller service is used to create instances of controllers\n         var $controller = $injector.get('$controller');\n\n         createController = function() {\n           return $controller('MyController', {'$scope' : $rootScope });\n         };\n       }));\n\n\n       afterEach(function() {\n         $httpBackend.verifyNoOutstandingExpectation();\n         $httpBackend.verifyNoOutstandingRequest();\n       });\n\n\n       it('should fetch authentication token', function() {\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n       });\n\n\n       it('should fail authentication', function() {\n\n         // Notice how you can change the response even after it was set\n         authRequestHandler.respond(401, '');\n\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('Failed...');\n       });\n\n\n       it('should send msg to server', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         // now you don’t care about the authentication, but\n         // the controller will still send the request and\n         // $httpBackend will respond without you having to\n         // specify the expectation and response for this request\n\n         $httpBackend.expectPOST('/add-msg.py', 'message content').respond(201, '');\n         $rootScope.saveMessage('message content');\n         expect($rootScope.status).toBe('Saving...');\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('');\n       });\n\n\n       it('should send auth header', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         $httpBackend.expectPOST('/add-msg.py', undefined, function(headers) {\n           // check if the header was send, if it wasn't the expectation won't\n           // match the request and the test will fail\n           return headers['Authorization'] == 'xxx';\n         }).respond(201, '');\n\n         $rootScope.saveMessage('whatever');\n         $httpBackend.flush();\n       });\n    });\n   ```\n */\nangular.mock.$HttpBackendProvider = function() {\n  this.$get = ['$rootScope', '$timeout', createHttpBackendMock];\n};\n\n/**\n * General factory function for $httpBackend mock.\n * Returns instance for unit testing (when no arguments specified):\n *   - passing through is disabled\n *   - auto flushing is disabled\n *\n * Returns instance for e2e testing (when `$delegate` and `$browser` specified):\n *   - passing through (delegating request to real backend) is enabled\n *   - auto flushing is enabled\n *\n * @param {Object=} $delegate Real $httpBackend instance (allow passing through if specified)\n * @param {Object=} $browser Auto-flushing enabled if specified\n * @return {Object} Instance of $httpBackend mock\n */\nfunction createHttpBackendMock($rootScope, $timeout, $delegate, $browser) {\n  var definitions = [],\n      expectations = [],\n      responses = [],\n      responsesPush = angular.bind(responses, responses.push),\n      copy = angular.copy;\n\n  function createResponse(status, data, headers, statusText) {\n    if (angular.isFunction(status)) return status;\n\n    return function() {\n      return angular.isNumber(status)\n          ? [status, data, headers, statusText]\n          : [200, status, data, headers];\n    };\n  }\n\n  // TODO(vojta): change params to: method, url, data, headers, callback\n  function $httpBackend(method, url, data, callback, headers, timeout, withCredentials) {\n    var xhr = new MockXhr(),\n        expectation = expectations[0],\n        wasExpected = false;\n\n    function prettyPrint(data) {\n      return (angular.isString(data) || angular.isFunction(data) || data instanceof RegExp)\n          ? data\n          : angular.toJson(data);\n    }\n\n    function wrapResponse(wrapped) {\n      if (!$browser && timeout) {\n        timeout.then ? timeout.then(handleTimeout) : $timeout(handleTimeout, timeout);\n      }\n\n      return handleResponse;\n\n      function handleResponse() {\n        var response = wrapped.response(method, url, data, headers);\n        xhr.$$respHeaders = response[2];\n        callback(copy(response[0]), copy(response[1]), xhr.getAllResponseHeaders(),\n                 copy(response[3] || ''));\n      }\n\n      function handleTimeout() {\n        for (var i = 0, ii = responses.length; i < ii; i++) {\n          if (responses[i] === handleResponse) {\n            responses.splice(i, 1);\n            callback(-1, undefined, '');\n            break;\n          }\n        }\n      }\n    }\n\n    if (expectation && expectation.match(method, url)) {\n      if (!expectation.matchData(data))\n        throw new Error('Expected ' + expectation + ' with different data\\n' +\n            'EXPECTED: ' + prettyPrint(expectation.data) + '\\nGOT:      ' + data);\n\n      if (!expectation.matchHeaders(headers))\n        throw new Error('Expected ' + expectation + ' with different headers\\n' +\n                        'EXPECTED: ' + prettyPrint(expectation.headers) + '\\nGOT:      ' +\n                        prettyPrint(headers));\n\n      expectations.shift();\n\n      if (expectation.response) {\n        responses.push(wrapResponse(expectation));\n        return;\n      }\n      wasExpected = true;\n    }\n\n    var i = -1, definition;\n    while ((definition = definitions[++i])) {\n      if (definition.match(method, url, data, headers || {})) {\n        if (definition.response) {\n          // if $browser specified, we do auto flush all requests\n          ($browser ? $browser.defer : responsesPush)(wrapResponse(definition));\n        } else if (definition.passThrough) {\n          $delegate(method, url, data, callback, headers, timeout, withCredentials);\n        } else throw new Error('No response defined !');\n        return;\n      }\n    }\n    throw wasExpected ?\n        new Error('No response defined !') :\n        new Error('Unexpected request: ' + method + ' ' + url + '\\n' +\n                  (expectation ? 'Expected ' + expectation : 'No more request expected'));\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#when\n   * @description\n   * Creates a new backend definition.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   *\n   *  - respond –\n   *      `{function([status,] data[, headers, statusText])\n   *      | function(function(method, url, data, headers)}`\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (string), response\n   *    headers (Object), and the text for the status (string). The respond method returns the\n   *    `requestHandler` object for possible overrides.\n   */\n  $httpBackend.when = function(method, url, data, headers) {\n    var definition = new MockHttpExpectation(method, url, data, headers),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            definition.passThrough = undefined;\n            definition.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    if ($browser) {\n      chain.passThrough = function() {\n        definition.response = undefined;\n        definition.passThrough = true;\n        return chain;\n      };\n    }\n\n    definitions.push(definition);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenGET\n   * @description\n   * Creates a new backend definition for GET requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenHEAD\n   * @description\n   * Creates a new backend definition for HEAD requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenDELETE\n   * @description\n   * Creates a new backend definition for DELETE requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPOST\n   * @description\n   * Creates a new backend definition for POST requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPUT\n   * @description\n   * Creates a new backend definition for PUT requests.  For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenJSONP\n   * @description\n   * Creates a new backend definition for JSONP requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n  createShortMethods('when');\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expect\n   * @description\n   * Creates a new request expectation.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *  request is handled. You can save this object for later use and invoke `respond` again in\n   *  order to change how a matched request is handled.\n   *\n   *  - respond –\n   *    `{function([status,] data[, headers, statusText])\n   *    | function(function(method, url, data, headers)}`\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (string), response\n   *    headers (Object), and the text for the status (string). The respond method returns the\n   *    `requestHandler` object for possible overrides.\n   */\n  $httpBackend.expect = function(method, url, data, headers) {\n    var expectation = new MockHttpExpectation(method, url, data, headers),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            expectation.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    expectations.push(expectation);\n    return chain;\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectGET\n   * @description\n   * Creates a new request expectation for GET requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #expect for more info.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectHEAD\n   * @description\n   * Creates a new request expectation for HEAD requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectDELETE\n   * @description\n   * Creates a new request expectation for DELETE requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPOST\n   * @description\n   * Creates a new request expectation for POST requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPUT\n   * @description\n   * Creates a new request expectation for PUT requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPATCH\n   * @description\n   * Creates a new request expectation for PATCH requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectJSONP\n   * @description\n   * Creates a new request expectation for JSONP requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n   *   and returns true if the url match the current definition.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n  createShortMethods('expect');\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#flush\n   * @description\n   * Flushes all pending requests using the trained responses.\n   *\n   * @param {number=} count Number of responses to flush (in the order they arrived). If undefined,\n   *   all pending requests will be flushed. If there are no pending requests when the flush method\n   *   is called an exception is thrown (as this typically a sign of programming error).\n   */\n  $httpBackend.flush = function(count, digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (!responses.length) throw new Error('No pending request to flush !');\n\n    if (angular.isDefined(count) && count !== null) {\n      while (count--) {\n        if (!responses.length) throw new Error('No more pending request to flush !');\n        responses.shift()();\n      }\n    } else {\n      while (responses.length) {\n        responses.shift()();\n      }\n    }\n    $httpBackend.verifyNoOutstandingExpectation(digest);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingExpectation\n   * @description\n   * Verifies that all of the requests defined via the `expect` api were made. If any of the\n   * requests were not made, verifyNoOutstandingExpectation throws an exception.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingExpectation);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingExpectation = function(digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (expectations.length) {\n      throw new Error('Unsatisfied requests: ' + expectations.join(', '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingRequest\n   * @description\n   * Verifies that there are no outstanding requests that need to be flushed.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingRequest);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingRequest = function() {\n    if (responses.length) {\n      throw new Error('Unflushed requests: ' + responses.length);\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#resetExpectations\n   * @description\n   * Resets all request expectations, but preserves all backend definitions. Typically, you would\n   * call resetExpectations during a multiple-phase test when you want to reuse the same instance of\n   * $httpBackend mock.\n   */\n  $httpBackend.resetExpectations = function() {\n    expectations.length = 0;\n    responses.length = 0;\n  };\n\n  return $httpBackend;\n\n\n  function createShortMethods(prefix) {\n    angular.forEach(['GET', 'DELETE', 'JSONP', 'HEAD'], function(method) {\n     $httpBackend[prefix + method] = function(url, headers) {\n       return $httpBackend[prefix](method, url, undefined, headers);\n     };\n    });\n\n    angular.forEach(['PUT', 'POST', 'PATCH'], function(method) {\n      $httpBackend[prefix + method] = function(url, data, headers) {\n        return $httpBackend[prefix](method, url, data, headers);\n      };\n    });\n  }\n}\n\nfunction MockHttpExpectation(method, url, data, headers) {\n\n  this.data = data;\n  this.headers = headers;\n\n  this.match = function(m, u, d, h) {\n    if (method != m) return false;\n    if (!this.matchUrl(u)) return false;\n    if (angular.isDefined(d) && !this.matchData(d)) return false;\n    if (angular.isDefined(h) && !this.matchHeaders(h)) return false;\n    return true;\n  };\n\n  this.matchUrl = function(u) {\n    if (!url) return true;\n    if (angular.isFunction(url.test)) return url.test(u);\n    if (angular.isFunction(url)) return url(u);\n    return url == u;\n  };\n\n  this.matchHeaders = function(h) {\n    if (angular.isUndefined(headers)) return true;\n    if (angular.isFunction(headers)) return headers(h);\n    return angular.equals(headers, h);\n  };\n\n  this.matchData = function(d) {\n    if (angular.isUndefined(data)) return true;\n    if (data && angular.isFunction(data.test)) return data.test(d);\n    if (data && angular.isFunction(data)) return data(d);\n    if (data && !angular.isString(data)) {\n      return angular.equals(angular.fromJson(angular.toJson(data)), angular.fromJson(d));\n    }\n    return data == d;\n  };\n\n  this.toString = function() {\n    return method + ' ' + url;\n  };\n}\n\nfunction createMockXhr() {\n  return new MockXhr();\n}\n\nfunction MockXhr() {\n\n  // hack for testing $http, $httpBackend\n  MockXhr.$$lastInstance = this;\n\n  this.open = function(method, url, async) {\n    this.$$method = method;\n    this.$$url = url;\n    this.$$async = async;\n    this.$$reqHeaders = {};\n    this.$$respHeaders = {};\n  };\n\n  this.send = function(data) {\n    this.$$data = data;\n  };\n\n  this.setRequestHeader = function(key, value) {\n    this.$$reqHeaders[key] = value;\n  };\n\n  this.getResponseHeader = function(name) {\n    // the lookup must be case insensitive,\n    // that's why we try two quick lookups first and full scan last\n    var header = this.$$respHeaders[name];\n    if (header) return header;\n\n    name = angular.lowercase(name);\n    header = this.$$respHeaders[name];\n    if (header) return header;\n\n    header = undefined;\n    angular.forEach(this.$$respHeaders, function(headerVal, headerName) {\n      if (!header && angular.lowercase(headerName) == name) header = headerVal;\n    });\n    return header;\n  };\n\n  this.getAllResponseHeaders = function() {\n    var lines = [];\n\n    angular.forEach(this.$$respHeaders, function(value, key) {\n      lines.push(key + ': ' + value);\n    });\n    return lines.join('\\n');\n  };\n\n  this.abort = angular.noop;\n}\n\n\n/**\n * @ngdoc service\n * @name $timeout\n * @description\n *\n * This service is just a simple decorator for {@link ng.$timeout $timeout} service\n * that adds a \"flush\" and \"verifyNoPendingTasks\" methods.\n */\n\nangular.mock.$TimeoutDecorator = ['$delegate', '$browser', function($delegate, $browser) {\n\n  /**\n   * @ngdoc method\n   * @name $timeout#flush\n   * @description\n   *\n   * Flushes the queue of pending tasks.\n   *\n   * @param {number=} delay maximum timeout amount to flush up until\n   */\n  $delegate.flush = function(delay) {\n    $browser.defer.flush(delay);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $timeout#verifyNoPendingTasks\n   * @description\n   *\n   * Verifies that there are no pending tasks that need to be flushed.\n   */\n  $delegate.verifyNoPendingTasks = function() {\n    if ($browser.deferredFns.length) {\n      throw new Error('Deferred tasks to flush (' + $browser.deferredFns.length + '): ' +\n          formatPendingTasksAsString($browser.deferredFns));\n    }\n  };\n\n  function formatPendingTasksAsString(tasks) {\n    var result = [];\n    angular.forEach(tasks, function(task) {\n      result.push('{id: ' + task.id + ', ' + 'time: ' + task.time + '}');\n    });\n\n    return result.join(', ');\n  }\n\n  return $delegate;\n}];\n\nangular.mock.$RAFDecorator = ['$delegate', function($delegate) {\n  var queue, rafFn = function(fn) {\n    var index = queue.length;\n    queue.push(fn);\n    return function() {\n      queue.splice(index, 1);\n    };\n  };\n\n  queue = rafFn.queue = [];\n\n  rafFn.supported = $delegate.supported;\n\n  rafFn.flush = function() {\n    if (queue.length === 0) {\n      throw new Error('No rAF callbacks present');\n    }\n\n    var length = queue.length;\n    for (var i = 0; i < length; i++) {\n      queue[i]();\n    }\n\n    queue.length = 0;\n  };\n\n  return rafFn;\n}];\n\nangular.mock.$AsyncCallbackDecorator = ['$delegate', function($delegate) {\n  var queue, addFn = function(fn) {\n    queue.push(fn);\n  };\n  queue = addFn.queue = [];\n  addFn.flush = function() {\n    angular.forEach(queue, function(fn) {\n      fn();\n    });\n    queue.length = 0;\n  };\n  return addFn;\n}];\n\n/**\n *\n */\nangular.mock.$RootElementProvider = function() {\n  this.$get = function() {\n    return angular.element('<div ng-app></div>');\n  };\n};\n\n/**\n * @ngdoc service\n * @name $controller\n * @description\n * A decorator for {@link ng.$controller} with additional `bindings` parameter, useful when testing\n * controllers of directives that use {@link $compile#-bindtocontroller- `bindToController`}.\n *\n *\n * ## Example\n *\n * ```js\n *\n * // Directive definition ...\n *\n * myMod.directive('myDirective', {\n *   controller: 'MyDirectiveController',\n *   bindToController: {\n *     name: '@'\n *   }\n * });\n *\n *\n * // Controller definition ...\n *\n * myMod.controller('MyDirectiveController', ['log', function($log) {\n *   $log.info(this.name);\n * })];\n *\n *\n * // In a test ...\n *\n * describe('myDirectiveController', function() {\n *   it('should write the bound name to the log', inject(function($controller, $log) {\n *     var ctrl = $controller('MyDirective', { /* no locals &#42;/ }, { name: 'Clark Kent' });\n *     expect(ctrl.name).toEqual('Clark Kent');\n *     expect($log.info.logs).toEqual(['Clark Kent']);\n *   });\n * });\n *\n * ```\n *\n * @param {Function|string} constructor If called with a function then it's considered to be the\n *    controller constructor function. Otherwise it's considered to be a string which is used\n *    to retrieve the controller constructor using the following steps:\n *\n *    * check if a controller with given name is registered via `$controllerProvider`\n *    * check if evaluating the string on the current scope returns a constructor\n *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n *      `window` object (not recommended)\n *\n *    The string can use the `controller as property` syntax, where the controller instance is published\n *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n *    to work correctly.\n *\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller before invoking the constructor. This is used\n *                           to simulate the `bindToController` feature and simplify certain kinds of tests.\n * @return {Object} Instance of given controller.\n */\nangular.mock.$ControllerDecorator = ['$delegate', function($delegate) {\n  return function(expression, locals, later, ident) {\n    if (later && typeof later === 'object') {\n      var create = $delegate(expression, locals, true, ident);\n      angular.extend(create.instance, later);\n      return create();\n    }\n    return $delegate(expression, locals, later, ident);\n  };\n}];\n\n\n/**\n * @ngdoc module\n * @name ngMock\n * @packageName angular-mocks\n * @description\n *\n * # ngMock\n *\n * The `ngMock` module provides support to inject and mock Angular services into unit tests.\n * In addition, ngMock also extends various core ng services such that they can be\n * inspected and controlled in a synchronous manner within test code.\n *\n *\n * <div doc-module-components=\"ngMock\"></div>\n *\n */\nangular.module('ngMock', ['ng']).provider({\n  $browser: angular.mock.$BrowserProvider,\n  $exceptionHandler: angular.mock.$ExceptionHandlerProvider,\n  $log: angular.mock.$LogProvider,\n  $interval: angular.mock.$IntervalProvider,\n  $httpBackend: angular.mock.$HttpBackendProvider,\n  $rootElement: angular.mock.$RootElementProvider\n}).config(['$provide', function($provide) {\n  $provide.decorator('$timeout', angular.mock.$TimeoutDecorator);\n  $provide.decorator('$$rAF', angular.mock.$RAFDecorator);\n  $provide.decorator('$$asyncCallback', angular.mock.$AsyncCallbackDecorator);\n  $provide.decorator('$rootScope', angular.mock.$RootScopeDecorator);\n  $provide.decorator('$controller', angular.mock.$ControllerDecorator);\n}]);\n\n/**\n * @ngdoc module\n * @name ngMockE2E\n * @module ngMockE2E\n * @packageName angular-mocks\n * @description\n *\n * The `ngMockE2E` is an angular module which contains mocks suitable for end-to-end testing.\n * Currently there is only one mock present in this module -\n * the {@link ngMockE2E.$httpBackend e2e $httpBackend} mock.\n */\nangular.module('ngMockE2E', ['ng']).config(['$provide', function($provide) {\n  $provide.decorator('$httpBackend', angular.mock.e2e.$httpBackendDecorator);\n}]);\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @module ngMockE2E\n * @description\n * Fake HTTP backend implementation suitable for end-to-end testing or backend-less development of\n * applications that use the {@link ng.$http $http service}.\n *\n * *Note*: For fake http backend implementation suitable for unit testing please see\n * {@link ngMock.$httpBackend unit-testing $httpBackend mock}.\n *\n * This implementation can be used to respond with static or dynamic responses via the `when` api\n * and its shortcuts (`whenGET`, `whenPOST`, etc) and optionally pass through requests to the\n * real $httpBackend for specific requests (e.g. to interact with certain remote apis or to fetch\n * templates from a webserver).\n *\n * As opposed to unit-testing, in an end-to-end testing scenario or in scenario when an application\n * is being developed with the real backend api replaced with a mock, it is often desirable for\n * certain category of requests to bypass the mock and issue a real http request (e.g. to fetch\n * templates or static files from the webserver). To configure the backend with this behavior\n * use the `passThrough` request handler of `when` instead of `respond`.\n *\n * Additionally, we don't want to manually have to flush mocked out requests like we do during unit\n * testing. For this reason the e2e $httpBackend flushes mocked out requests\n * automatically, closely simulating the behavior of the XMLHttpRequest object.\n *\n * To setup the application to run with this http backend, you have to create a module that depends\n * on the `ngMockE2E` and your application modules and defines the fake backend:\n *\n * ```js\n *   myAppDev = angular.module('myAppDev', ['myApp', 'ngMockE2E']);\n *   myAppDev.run(function($httpBackend) {\n *     phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *     $httpBackend.whenGET(/^\\/templates\\//).passThrough();\n *     //...\n *   });\n * ```\n *\n * Afterwards, bootstrap your app with this new module.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#when\n * @module ngMockE2E\n * @description\n * Creates a new backend definition.\n *\n * @param {string} method HTTP method.\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n *   object and returns true if the headers match the current definition.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n *\n *  - respond –\n *    `{function([status,] data[, headers, statusText])\n *    | function(function(method, url, data, headers)}`\n *    – The respond method takes a set of static data to be returned or a function that can return\n *    an array containing response status (number), response data (string), response headers\n *    (Object), and the text for the status (string).\n *  - passThrough – `{function()}` – Any request matching a backend definition with\n *    `passThrough` handler will be passed through to the real backend (an XHR request will be made\n *    to the server.)\n *  - Both methods return the `requestHandler` object for possible overrides.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenGET\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for GET requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenHEAD\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for HEAD requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenDELETE\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for DELETE requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPOST\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for POST requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPUT\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PUT requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPATCH\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PATCH requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenJSONP\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for JSONP requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives the url\n *   and returns true if the url match the current definition.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\nangular.mock.e2e = {};\nangular.mock.e2e.$httpBackendDecorator =\n  ['$rootScope', '$timeout', '$delegate', '$browser', createHttpBackendMock];\n\n\n/**\n * @ngdoc type\n * @name $rootScope.Scope\n * @module ngMock\n * @description\n * {@link ng.$rootScope.Scope Scope} type decorated with helper methods useful for testing. These\n * methods are automatically available on any {@link ng.$rootScope.Scope Scope} instance when\n * `ngMock` module is loaded.\n *\n * In addition to all the regular `Scope` methods, the following helper methods are available:\n */\nangular.mock.$RootScopeDecorator = ['$delegate', function($delegate) {\n\n  var $rootScopePrototype = Object.getPrototypeOf($delegate);\n\n  $rootScopePrototype.$countChildScopes = countChildScopes;\n  $rootScopePrototype.$countWatchers = countWatchers;\n\n  return $delegate;\n\n  // ------------------------------------------------------------------------------------------ //\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countChildScopes\n   * @module ngMock\n   * @description\n   * Counts all the direct and indirect child scopes of the current scope.\n   *\n   * The current scope is excluded from the count. The count includes all isolate child scopes.\n   *\n   * @returns {number} Total number of child scopes.\n   */\n  function countChildScopes() {\n    // jshint validthis: true\n    var count = 0; // exclude the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += 1;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countWatchers\n   * @module ngMock\n   * @description\n   * Counts all the watchers of direct and indirect child scopes of the current scope.\n   *\n   * The watchers of the current scope are included in the count and so are all the watchers of\n   * isolate child scopes.\n   *\n   * @returns {number} Total number of watchers.\n   */\n  function countWatchers() {\n    // jshint validthis: true\n    var count = this.$$watchers ? this.$$watchers.length : 0; // include the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += currentScope.$$watchers ? currentScope.$$watchers.length : 0;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n}];\n\n\nif (window.jasmine || window.mocha) {\n\n  var currentSpec = null,\n      annotatedFunctions = [],\n      isSpecRunning = function() {\n        return !!currentSpec;\n      };\n\n  angular.mock.$$annotate = angular.injector.$$annotate;\n  angular.injector.$$annotate = function(fn) {\n    if (typeof fn === 'function' && !fn.$inject) {\n      annotatedFunctions.push(fn);\n    }\n    return angular.mock.$$annotate.apply(this, arguments);\n  };\n\n\n  (window.beforeEach || window.setup)(function() {\n    annotatedFunctions = [];\n    currentSpec = this;\n  });\n\n  (window.afterEach || window.teardown)(function() {\n    var injector = currentSpec.$injector;\n\n    annotatedFunctions.forEach(function(fn) {\n      delete fn.$inject;\n    });\n\n    angular.forEach(currentSpec.$modules, function(module) {\n      if (module && module.$$hashKey) {\n        module.$$hashKey = undefined;\n      }\n    });\n\n    currentSpec.$injector = null;\n    currentSpec.$modules = null;\n    currentSpec = null;\n\n    if (injector) {\n      injector.get('$rootElement').off();\n      var $browser = injector.get('$browser');\n      if ($browser.pollFns) $browser.pollFns.length = 0;\n    }\n\n    // clean up jquery's fragment cache\n    angular.forEach(angular.element.fragments, function(val, key) {\n      delete angular.element.fragments[key];\n    });\n\n    MockXhr.$$lastInstance = null;\n\n    angular.forEach(angular.callbacks, function(val, key) {\n      delete angular.callbacks[key];\n    });\n    angular.callbacks.counter = 0;\n  });\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function registers a module configuration code. It collects the configuration information\n   * which will be used when the injector is created by {@link angular.mock.inject inject}.\n   *\n   * See {@link angular.mock.inject inject} for usage example\n   *\n   * @param {...(string|Function|Object)} fns any number of modules which are represented as string\n   *        aliases or as anonymous module initialization functions. The modules are used to\n   *        configure the injector. The 'ng' and 'ngMock' modules are automatically loaded. If an\n   *        object literal is passed they will be registered as values in the module, the key being\n   *        the module name and the value being what is returned.\n   */\n  window.module = angular.mock.module = function() {\n    var moduleFns = Array.prototype.slice.call(arguments, 0);\n    return isSpecRunning() ? workFn() : workFn;\n    /////////////////////\n    function workFn() {\n      if (currentSpec.$injector) {\n        throw new Error('Injector already created, can not register a module!');\n      } else {\n        var modules = currentSpec.$modules || (currentSpec.$modules = []);\n        angular.forEach(moduleFns, function(module) {\n          if (angular.isObject(module) && !angular.isArray(module)) {\n            modules.push(function($provide) {\n              angular.forEach(module, function(value, key) {\n                $provide.value(key, value);\n              });\n            });\n          } else {\n            modules.push(module);\n          }\n        });\n      }\n    }\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.inject\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * The inject function wraps a function into an injectable function. The inject() creates new\n   * instance of {@link auto.$injector $injector} per test, which is then used for\n   * resolving references.\n   *\n   *\n   * ## Resolving References (Underscore Wrapping)\n   * Often, we would like to inject a reference once, in a `beforeEach()` block and reuse this\n   * in multiple `it()` clauses. To be able to do this we must assign the reference to a variable\n   * that is declared in the scope of the `describe()` block. Since we would, most likely, want\n   * the variable to have the same name of the reference we have a problem, since the parameter\n   * to the `inject()` function would hide the outer variable.\n   *\n   * To help with this, the injected parameters can, optionally, be enclosed with underscores.\n   * These are ignored by the injector when the reference name is resolved.\n   *\n   * For example, the parameter `_myService_` would be resolved as the reference `myService`.\n   * Since it is available in the function body as _myService_, we can then assign it to a variable\n   * defined in an outer scope.\n   *\n   * ```\n   * // Defined out reference variable outside\n   * var myService;\n   *\n   * // Wrap the parameter in underscores\n   * beforeEach( inject( function(_myService_){\n   *   myService = _myService_;\n   * }));\n   *\n   * // Use myService in a series of tests.\n   * it('makes use of myService', function() {\n   *   myService.doStuff();\n   * });\n   *\n   * ```\n   *\n   * See also {@link angular.mock.module angular.mock.module}\n   *\n   * ## Example\n   * Example of what a typical jasmine tests looks like with the inject method.\n   * ```js\n   *\n   *   angular.module('myApplicationModule', [])\n   *       .value('mode', 'app')\n   *       .value('version', 'v1.0.1');\n   *\n   *\n   *   describe('MyApp', function() {\n   *\n   *     // You need to load modules that you want to test,\n   *     // it loads only the \"ng\" module by default.\n   *     beforeEach(module('myApplicationModule'));\n   *\n   *\n   *     // inject() is used to inject arguments of all given functions\n   *     it('should provide a version', inject(function(mode, version) {\n   *       expect(version).toEqual('v1.0.1');\n   *       expect(mode).toEqual('app');\n   *     }));\n   *\n   *\n   *     // The inject and module method can also be used inside of the it or beforeEach\n   *     it('should override a version and test the new version is injected', function() {\n   *       // module() takes functions or strings (module aliases)\n   *       module(function($provide) {\n   *         $provide.value('version', 'overridden'); // override version here\n   *       });\n   *\n   *       inject(function(version) {\n   *         expect(version).toEqual('overridden');\n   *       });\n   *     });\n   *   });\n   *\n   * ```\n   *\n   * @param {...Function} fns any number of functions which will be injected using the injector.\n   */\n\n\n\n  var ErrorAddingDeclarationLocationStack = function(e, errorForStack) {\n    this.message = e.message;\n    this.name = e.name;\n    if (e.line) this.line = e.line;\n    if (e.sourceId) this.sourceId = e.sourceId;\n    if (e.stack && errorForStack)\n      this.stack = e.stack + '\\n' + errorForStack.stack;\n    if (e.stackArray) this.stackArray = e.stackArray;\n  };\n  ErrorAddingDeclarationLocationStack.prototype.toString = Error.prototype.toString;\n\n  window.inject = angular.mock.inject = function() {\n    var blockFns = Array.prototype.slice.call(arguments, 0);\n    var errorForStack = new Error('Declaration Location');\n    return isSpecRunning() ? workFn.call(currentSpec) : workFn;\n    /////////////////////\n    function workFn() {\n      var modules = currentSpec.$modules || [];\n      var strictDi = !!currentSpec.$injectorStrict;\n      modules.unshift('ngMock');\n      modules.unshift('ng');\n      var injector = currentSpec.$injector;\n      if (!injector) {\n        if (strictDi) {\n          // If strictDi is enabled, annotate the providerInjector blocks\n          angular.forEach(modules, function(moduleFn) {\n            if (typeof moduleFn === \"function\") {\n              angular.injector.$$annotate(moduleFn);\n            }\n          });\n        }\n        injector = currentSpec.$injector = angular.injector(modules, strictDi);\n        currentSpec.$injectorStrict = strictDi;\n      }\n      for (var i = 0, ii = blockFns.length; i < ii; i++) {\n        if (currentSpec.$injectorStrict) {\n          // If the injector is strict / strictDi, and the spec wants to inject using automatic\n          // annotation, then annotate the function here.\n          injector.annotate(blockFns[i]);\n        }\n        try {\n          /* jshint -W040 *//* Jasmine explicitly provides a `this` object when calling functions */\n          injector.invoke(blockFns[i] || angular.noop, this);\n          /* jshint +W040 */\n        } catch (e) {\n          if (e.stack && errorForStack) {\n            throw new ErrorAddingDeclarationLocationStack(e, errorForStack);\n          }\n          throw e;\n        } finally {\n          errorForStack = null;\n        }\n      }\n    }\n  };\n\n\n  angular.mock.inject.strictDi = function(value) {\n    value = arguments.length ? !!value : true;\n    return isSpecRunning() ? workFn() : workFn;\n\n    function workFn() {\n      if (value !== currentSpec.$injectorStrict) {\n        if (currentSpec.$injector) {\n          throw new Error('Injector already created, can not modify strict annotations');\n        } else {\n          currentSpec.$injectorStrict = value;\n        }\n      }\n    }\n  };\n}\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.3/angular.js",
    "content": "/**\n * @license AngularJS v1.3.20\n * (c) 2010-2014 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, document, undefined) {'use strict';\n\n/**\n * @description\n *\n * This object provides a utility for producing rich Error messages within\n * Angular. It can be called as follows:\n *\n * var exampleMinErr = minErr('example');\n * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);\n *\n * The above creates an instance of minErr in the example namespace. The\n * resulting error will have a namespaced error code of example.one.  The\n * resulting error will replace {0} with the value of foo, and {1} with the\n * value of bar. The object is not restricted in the number of arguments it can\n * take.\n *\n * If fewer arguments are specified than necessary for interpolation, the extra\n * interpolation markers will be preserved in the final string.\n *\n * Since data will be parsed statically during a build step, some restrictions\n * are applied with respect to how minErr instances are created and called.\n * Instances should have names of the form namespaceMinErr for a minErr created\n * using minErr('namespace') . Error codes, namespaces and template strings\n * should all be static strings, not variables or general expressions.\n *\n * @param {string} module The namespace to use for the new minErr instance.\n * @param {function} ErrorConstructor Custom error constructor to be instantiated when returning\n *   error from returned function, for cases when a particular type of error is useful.\n * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance\n */\n\nfunction minErr(module, ErrorConstructor) {\n  ErrorConstructor = ErrorConstructor || Error;\n  return function() {\n    var code = arguments[0],\n      prefix = '[' + (module ? module + ':' : '') + code + '] ',\n      template = arguments[1],\n      templateArgs = arguments,\n\n      message, i;\n\n    message = prefix + template.replace(/\\{\\d+\\}/g, function(match) {\n      var index = +match.slice(1, -1), arg;\n\n      if (index + 2 < templateArgs.length) {\n        return toDebugString(templateArgs[index + 2]);\n      }\n      return match;\n    });\n\n    message = message + '\\nhttp://errors.angularjs.org/1.3.20/' +\n      (module ? module + '/' : '') + code;\n    for (i = 2; i < arguments.length; i++) {\n      message = message + (i == 2 ? '?' : '&') + 'p' + (i - 2) + '=' +\n        encodeURIComponent(toDebugString(arguments[i]));\n    }\n    return new ErrorConstructor(message);\n  };\n}\n\n/* We need to tell jshint what variables are being exported */\n/* global angular: true,\n  msie: true,\n  jqLite: true,\n  jQuery: true,\n  slice: true,\n  splice: true,\n  push: true,\n  toString: true,\n  ngMinErr: true,\n  angularModule: true,\n  uid: true,\n  REGEX_STRING_REGEXP: true,\n  VALIDITY_STATE_PROPERTY: true,\n\n  lowercase: true,\n  uppercase: true,\n  manualLowercase: true,\n  manualUppercase: true,\n  nodeName_: true,\n  isArrayLike: true,\n  forEach: true,\n  sortedKeys: true,\n  forEachSorted: true,\n  reverseParams: true,\n  nextUid: true,\n  setHashKey: true,\n  extend: true,\n  int: true,\n  inherit: true,\n  noop: true,\n  identity: true,\n  valueFn: true,\n  isUndefined: true,\n  isDefined: true,\n  isObject: true,\n  isString: true,\n  isNumber: true,\n  isDate: true,\n  isArray: true,\n  isFunction: true,\n  isRegExp: true,\n  isWindow: true,\n  isScope: true,\n  isFile: true,\n  isFormData: true,\n  isBlob: true,\n  isBoolean: true,\n  isPromiseLike: true,\n  trim: true,\n  escapeForRegexp: true,\n  isElement: true,\n  makeMap: true,\n  includes: true,\n  arrayRemove: true,\n  copy: true,\n  shallowCopy: true,\n  equals: true,\n  csp: true,\n  concat: true,\n  sliceArgs: true,\n  bind: true,\n  toJsonReplacer: true,\n  toJson: true,\n  fromJson: true,\n  startingTag: true,\n  tryDecodeURIComponent: true,\n  parseKeyValue: true,\n  toKeyValue: true,\n  encodeUriSegment: true,\n  encodeUriQuery: true,\n  angularInit: true,\n  bootstrap: true,\n  getTestability: true,\n  snake_case: true,\n  bindJQuery: true,\n  assertArg: true,\n  assertArgFn: true,\n  assertNotHasOwnProperty: true,\n  getter: true,\n  getBlockNodes: true,\n  hasOwnProperty: true,\n  createMap: true,\n\n  NODE_TYPE_ELEMENT: true,\n  NODE_TYPE_ATTRIBUTE: true,\n  NODE_TYPE_TEXT: true,\n  NODE_TYPE_COMMENT: true,\n  NODE_TYPE_DOCUMENT: true,\n  NODE_TYPE_DOCUMENT_FRAGMENT: true,\n*/\n\n////////////////////////////////////\n\n/**\n * @ngdoc module\n * @name ng\n * @module ng\n * @description\n *\n * # ng (core module)\n * The ng module is loaded by default when an AngularJS application is started. The module itself\n * contains the essential components for an AngularJS application to function. The table below\n * lists a high level breakdown of each of the services/factories, filters, directives and testing\n * components available within this core module.\n *\n * <div doc-module-components=\"ng\"></div>\n */\n\nvar REGEX_STRING_REGEXP = /^\\/(.+)\\/([a-z]*)$/;\n\n// The name of a form control's ValidityState property.\n// This is used so that it's possible for internal tests to create mock ValidityStates.\nvar VALIDITY_STATE_PROPERTY = 'validity';\n\n/**\n * @ngdoc function\n * @name angular.lowercase\n * @module ng\n * @kind function\n *\n * @description Converts the specified string to lowercase.\n * @param {string} string String to be converted to lowercase.\n * @returns {string} Lowercased string.\n */\nvar lowercase = function(string) {return isString(string) ? string.toLowerCase() : string;};\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\n/**\n * @ngdoc function\n * @name angular.uppercase\n * @module ng\n * @kind function\n *\n * @description Converts the specified string to uppercase.\n * @param {string} string String to be converted to uppercase.\n * @returns {string} Uppercased string.\n */\nvar uppercase = function(string) {return isString(string) ? string.toUpperCase() : string;};\n\n\nvar manualLowercase = function(s) {\n  /* jshint bitwise: false */\n  return isString(s)\n      ? s.replace(/[A-Z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) | 32);})\n      : s;\n};\nvar manualUppercase = function(s) {\n  /* jshint bitwise: false */\n  return isString(s)\n      ? s.replace(/[a-z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) & ~32);})\n      : s;\n};\n\n\n// String#toLowerCase and String#toUpperCase don't produce correct results in browsers with Turkish\n// locale, for this reason we need to detect this case and redefine lowercase/uppercase methods\n// with correct but slower alternatives.\nif ('i' !== 'I'.toLowerCase()) {\n  lowercase = manualLowercase;\n  uppercase = manualUppercase;\n}\n\n\nvar\n    msie,             // holds major version number for IE, or NaN if UA is not IE.\n    jqLite,           // delay binding since jQuery could be loaded after us.\n    jQuery,           // delay binding\n    slice             = [].slice,\n    splice            = [].splice,\n    push              = [].push,\n    toString          = Object.prototype.toString,\n    ngMinErr          = minErr('ng'),\n\n    /** @name angular */\n    angular           = window.angular || (window.angular = {}),\n    angularModule,\n    uid               = 0;\n\n/**\n * documentMode is an IE-only property\n * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx\n */\nmsie = document.documentMode;\n\n\n/**\n * @private\n * @param {*} obj\n * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,\n *                   String ...)\n */\nfunction isArrayLike(obj) {\n  if (obj == null || isWindow(obj)) {\n    return false;\n  }\n\n  // Support: iOS 8.2 (not reproducible in simulator)\n  // \"length\" in obj used to prevent JIT error (gh-11508)\n  var length = \"length\" in Object(obj) && obj.length;\n\n  if (obj.nodeType === NODE_TYPE_ELEMENT && length) {\n    return true;\n  }\n\n  return isString(obj) || isArray(obj) || length === 0 ||\n         typeof length === 'number' && length > 0 && (length - 1) in obj;\n}\n\n/**\n * @ngdoc function\n * @name angular.forEach\n * @module ng\n * @kind function\n *\n * @description\n * Invokes the `iterator` function once for each item in `obj` collection, which can be either an\n * object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value`\n * is the value of an object property or an array element, `key` is the object property key or\n * array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.\n *\n * It is worth noting that `.forEach` does not iterate over inherited properties because it filters\n * using the `hasOwnProperty` method.\n *\n * Unlike ES262's\n * [Array.prototype.forEach](http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.18),\n * Providing 'undefined' or 'null' values for `obj` will not throw a TypeError, but rather just\n * return the value provided.\n *\n   ```js\n     var values = {name: 'misko', gender: 'male'};\n     var log = [];\n     angular.forEach(values, function(value, key) {\n       this.push(key + ': ' + value);\n     }, log);\n     expect(log).toEqual(['name: misko', 'gender: male']);\n   ```\n *\n * @param {Object|Array} obj Object to iterate over.\n * @param {Function} iterator Iterator function.\n * @param {Object=} context Object to become context (`this`) for the iterator function.\n * @returns {Object|Array} Reference to `obj`.\n */\n\nfunction forEach(obj, iterator, context) {\n  var key, length;\n  if (obj) {\n    if (isFunction(obj)) {\n      for (key in obj) {\n        // Need to check if hasOwnProperty exists,\n        // as on IE8 the result of querySelectorAll is an object without a hasOwnProperty function\n        if (key != 'prototype' && key != 'length' && key != 'name' && (!obj.hasOwnProperty || obj.hasOwnProperty(key))) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (isArray(obj) || isArrayLike(obj)) {\n      var isPrimitive = typeof obj !== 'object';\n      for (key = 0, length = obj.length; key < length; key++) {\n        if (isPrimitive || key in obj) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (obj.forEach && obj.forEach !== forEach) {\n        obj.forEach(iterator, context, obj);\n    } else {\n      for (key in obj) {\n        if (obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    }\n  }\n  return obj;\n}\n\nfunction sortedKeys(obj) {\n  return Object.keys(obj).sort();\n}\n\nfunction forEachSorted(obj, iterator, context) {\n  var keys = sortedKeys(obj);\n  for (var i = 0; i < keys.length; i++) {\n    iterator.call(context, obj[keys[i]], keys[i]);\n  }\n  return keys;\n}\n\n\n/**\n * when using forEach the params are value, key, but it is often useful to have key, value.\n * @param {function(string, *)} iteratorFn\n * @returns {function(*, string)}\n */\nfunction reverseParams(iteratorFn) {\n  return function(value, key) { iteratorFn(key, value); };\n}\n\n/**\n * A consistent way of creating unique IDs in angular.\n *\n * Using simple numbers allows us to generate 28.6 million unique ids per second for 10 years before\n * we hit number precision issues in JavaScript.\n *\n * Math.pow(2,53) / 60 / 60 / 24 / 365 / 10 = 28.6M\n *\n * @returns {number} an unique alpha-numeric string\n */\nfunction nextUid() {\n  return ++uid;\n}\n\n\n/**\n * Set or clear the hashkey for an object.\n * @param obj object\n * @param h the hashkey (!truthy to delete the hashkey)\n */\nfunction setHashKey(obj, h) {\n  if (h) {\n    obj.$$hashKey = h;\n  } else {\n    delete obj.$$hashKey;\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.extend\n * @module ng\n * @kind function\n *\n * @description\n * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n * to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n * by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.\n * Note: Keep in mind that `angular.extend` does not support recursive merge (deep copy).\n *\n * @param {Object} dst Destination object.\n * @param {...Object} src Source object(s).\n * @returns {Object} Reference to `dst`.\n */\nfunction extend(dst) {\n  var h = dst.$$hashKey;\n\n  for (var i = 1, ii = arguments.length; i < ii; i++) {\n    var obj = arguments[i];\n    if (obj) {\n      var keys = Object.keys(obj);\n      for (var j = 0, jj = keys.length; j < jj; j++) {\n        var key = keys[j];\n        dst[key] = obj[key];\n      }\n    }\n  }\n\n  setHashKey(dst, h);\n  return dst;\n}\n\nfunction int(str) {\n  return parseInt(str, 10);\n}\n\n\nfunction inherit(parent, extra) {\n  return extend(Object.create(parent), extra);\n}\n\n/**\n * @ngdoc function\n * @name angular.noop\n * @module ng\n * @kind function\n *\n * @description\n * A function that performs no operations. This function can be useful when writing code in the\n * functional style.\n   ```js\n     function foo(callback) {\n       var result = calculateResult();\n       (callback || angular.noop)(result);\n     }\n   ```\n */\nfunction noop() {}\nnoop.$inject = [];\n\n\n/**\n * @ngdoc function\n * @name angular.identity\n * @module ng\n * @kind function\n *\n * @description\n * A function that returns its first argument. This function is useful when writing code in the\n * functional style.\n *\n   ```js\n     function transformer(transformationFn, value) {\n       return (transformationFn || angular.identity)(value);\n     };\n   ```\n  * @param {*} value to be returned.\n  * @returns {*} the value passed in.\n */\nfunction identity($) {return $;}\nidentity.$inject = [];\n\n\nfunction valueFn(value) {return function() {return value;};}\n\n/**\n * @ngdoc function\n * @name angular.isUndefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is undefined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is undefined.\n */\nfunction isUndefined(value) {return typeof value === 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is defined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is defined.\n */\nfunction isDefined(value) {return typeof value !== 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isObject\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not\n * considered to be objects. Note that JavaScript arrays are objects.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Object` but not `null`.\n */\nfunction isObject(value) {\n  // http://jsperf.com/isobject4\n  return value !== null && typeof value === 'object';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isString\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `String`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `String`.\n */\nfunction isString(value) {return typeof value === 'string';}\n\n\n/**\n * @ngdoc function\n * @name angular.isNumber\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Number`.\n *\n * This includes the \"special\" numbers `NaN`, `+Infinity` and `-Infinity`.\n *\n * If you wish to exclude these then you can use the native\n * [`isFinite'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)\n * method.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Number`.\n */\nfunction isNumber(value) {return typeof value === 'number';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDate\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a value is a date.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Date`.\n */\nfunction isDate(value) {\n  return toString.call(value) === '[object Date]';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isArray\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Array`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Array`.\n */\nvar isArray = Array.isArray;\n\n/**\n * @ngdoc function\n * @name angular.isFunction\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Function`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Function`.\n */\nfunction isFunction(value) {return typeof value === 'function';}\n\n\n/**\n * Determines if a value is a regular expression object.\n *\n * @private\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `RegExp`.\n */\nfunction isRegExp(value) {\n  return toString.call(value) === '[object RegExp]';\n}\n\n\n/**\n * Checks if `obj` is a window object.\n *\n * @private\n * @param {*} obj Object to check\n * @returns {boolean} True if `obj` is a window obj.\n */\nfunction isWindow(obj) {\n  return obj && obj.window === obj;\n}\n\n\nfunction isScope(obj) {\n  return obj && obj.$evalAsync && obj.$watch;\n}\n\n\nfunction isFile(obj) {\n  return toString.call(obj) === '[object File]';\n}\n\n\nfunction isFormData(obj) {\n  return toString.call(obj) === '[object FormData]';\n}\n\n\nfunction isBlob(obj) {\n  return toString.call(obj) === '[object Blob]';\n}\n\n\nfunction isBoolean(value) {\n  return typeof value === 'boolean';\n}\n\n\nfunction isPromiseLike(obj) {\n  return obj && isFunction(obj.then);\n}\n\n\nvar trim = function(value) {\n  return isString(value) ? value.trim() : value;\n};\n\n// Copied from:\n// http://docs.closure-library.googlecode.com/git/local_closure_goog_string_string.js.source.html#line1021\n// Prereq: s is a string.\nvar escapeForRegexp = function(s) {\n  return s.replace(/([-()\\[\\]{}+?*.$\\^|,:#<!\\\\])/g, '\\\\$1').\n           replace(/\\x08/g, '\\\\x08');\n};\n\n\n/**\n * @ngdoc function\n * @name angular.isElement\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a DOM element (or wrapped jQuery element).\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).\n */\nfunction isElement(node) {\n  return !!(node &&\n    (node.nodeName  // we are a direct element\n    || (node.prop && node.attr && node.find)));  // we have an on and find method part of jQuery API\n}\n\n/**\n * @param str 'key1,key2,...'\n * @returns {object} in the form of {key1:true, key2:true, ...}\n */\nfunction makeMap(str) {\n  var obj = {}, items = str.split(\",\"), i;\n  for (i = 0; i < items.length; i++)\n    obj[items[i]] = true;\n  return obj;\n}\n\n\nfunction nodeName_(element) {\n  return lowercase(element.nodeName || (element[0] && element[0].nodeName));\n}\n\nfunction includes(array, obj) {\n  return Array.prototype.indexOf.call(array, obj) != -1;\n}\n\nfunction arrayRemove(array, value) {\n  var index = array.indexOf(value);\n  if (index >= 0)\n    array.splice(index, 1);\n  return value;\n}\n\n/**\n * @ngdoc function\n * @name angular.copy\n * @module ng\n * @kind function\n *\n * @description\n * Creates a deep copy of `source`, which should be an object or an array.\n *\n * * If no destination is supplied, a copy of the object or array is created.\n * * If a destination is provided, all of its elements (for arrays) or properties (for objects)\n *   are deleted and then all elements/properties from the source are copied to it.\n * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.\n * * If `source` is identical to 'destination' an exception will be thrown.\n *\n * @param {*} source The source that will be used to make a copy.\n *                   Can be any type, including primitives, `null`, and `undefined`.\n * @param {(Object|Array)=} destination Destination into which the source is copied. If\n *     provided, must be of the same type as `source`.\n * @returns {*} The copy or updated `destination`, if `destination` was specified.\n *\n * @example\n <example module=\"copyExample\">\n <file name=\"index.html\">\n <div ng-controller=\"ExampleController\">\n <form novalidate class=\"simple-form\">\n Name: <input type=\"text\" ng-model=\"user.name\" /><br />\n E-mail: <input type=\"email\" ng-model=\"user.email\" /><br />\n Gender: <input type=\"radio\" ng-model=\"user.gender\" value=\"male\" />male\n <input type=\"radio\" ng-model=\"user.gender\" value=\"female\" />female<br />\n <button ng-click=\"reset()\">RESET</button>\n <button ng-click=\"update(user)\">SAVE</button>\n </form>\n <pre>form = {{user | json}}</pre>\n <pre>master = {{master | json}}</pre>\n </div>\n\n <script>\n  angular.module('copyExample', [])\n    .controller('ExampleController', ['$scope', function($scope) {\n      $scope.master= {};\n\n      $scope.update = function(user) {\n        // Example with 1 argument\n        $scope.master= angular.copy(user);\n      };\n\n      $scope.reset = function() {\n        // Example with 2 arguments\n        angular.copy($scope.master, $scope.user);\n      };\n\n      $scope.reset();\n    }]);\n </script>\n </file>\n </example>\n */\nfunction copy(source, destination, stackSource, stackDest) {\n  if (isWindow(source) || isScope(source)) {\n    throw ngMinErr('cpws',\n      \"Can't copy! Making copies of Window or Scope instances is not supported.\");\n  }\n\n  if (!destination) {\n    destination = source;\n    if (source) {\n      if (isArray(source)) {\n        destination = copy(source, [], stackSource, stackDest);\n      } else if (isDate(source)) {\n        destination = new Date(source.getTime());\n      } else if (isRegExp(source)) {\n        destination = new RegExp(source.source, source.toString().match(/[^\\/]*$/)[0]);\n        destination.lastIndex = source.lastIndex;\n      } else if (isObject(source)) {\n        var emptyObject = Object.create(Object.getPrototypeOf(source));\n        destination = copy(source, emptyObject, stackSource, stackDest);\n      }\n    }\n  } else {\n    if (source === destination) throw ngMinErr('cpi',\n      \"Can't copy! Source and destination are identical.\");\n\n    stackSource = stackSource || [];\n    stackDest = stackDest || [];\n\n    if (isObject(source)) {\n      var index = stackSource.indexOf(source);\n      if (index !== -1) return stackDest[index];\n\n      stackSource.push(source);\n      stackDest.push(destination);\n    }\n\n    var result;\n    if (isArray(source)) {\n      destination.length = 0;\n      for (var i = 0; i < source.length; i++) {\n        result = copy(source[i], null, stackSource, stackDest);\n        if (isObject(source[i])) {\n          stackSource.push(source[i]);\n          stackDest.push(result);\n        }\n        destination.push(result);\n      }\n    } else {\n      var h = destination.$$hashKey;\n      if (isArray(destination)) {\n        destination.length = 0;\n      } else {\n        forEach(destination, function(value, key) {\n          delete destination[key];\n        });\n      }\n      for (var key in source) {\n        if (source.hasOwnProperty(key)) {\n          result = copy(source[key], null, stackSource, stackDest);\n          if (isObject(source[key])) {\n            stackSource.push(source[key]);\n            stackDest.push(result);\n          }\n          destination[key] = result;\n        }\n      }\n      setHashKey(destination,h);\n    }\n\n  }\n  return destination;\n}\n\n/**\n * Creates a shallow copy of an object, an array or a primitive.\n *\n * Assumes that there are no proto properties for objects.\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for (var i = 0, ii = src.length; i < ii; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.equals\n * @module ng\n * @kind function\n *\n * @description\n * Determines if two objects or two values are equivalent. Supports value types, regular\n * expressions, arrays and objects.\n *\n * Two objects or values are considered equivalent if at least one of the following is true:\n *\n * * Both objects or values pass `===` comparison.\n * * Both objects or values are of the same type and all of their properties are equal by\n *   comparing them with `angular.equals`.\n * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)\n * * Both values represent the same regular expression (In JavaScript,\n *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual\n *   representation matches).\n *\n * During a property comparison, properties of `function` type and properties with names\n * that begin with `$` are ignored.\n *\n * Scope and DOMWindow objects are being compared only by identify (`===`).\n *\n * @param {*} o1 Object or value to compare.\n * @param {*} o2 Object or value to compare.\n * @returns {boolean} True if arguments are equal.\n */\nfunction equals(o1, o2) {\n  if (o1 === o2) return true;\n  if (o1 === null || o2 === null) return false;\n  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN\n  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;\n  if (t1 == t2) {\n    if (t1 == 'object') {\n      if (isArray(o1)) {\n        if (!isArray(o2)) return false;\n        if ((length = o1.length) == o2.length) {\n          for (key = 0; key < length; key++) {\n            if (!equals(o1[key], o2[key])) return false;\n          }\n          return true;\n        }\n      } else if (isDate(o1)) {\n        if (!isDate(o2)) return false;\n        return equals(o1.getTime(), o2.getTime());\n      } else if (isRegExp(o1)) {\n        return isRegExp(o2) ? o1.toString() == o2.toString() : false;\n      } else {\n        if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) ||\n          isArray(o2) || isDate(o2) || isRegExp(o2)) return false;\n        keySet = {};\n        for (key in o1) {\n          if (key.charAt(0) === '$' || isFunction(o1[key])) continue;\n          if (!equals(o1[key], o2[key])) return false;\n          keySet[key] = true;\n        }\n        for (key in o2) {\n          if (!keySet.hasOwnProperty(key) &&\n              key.charAt(0) !== '$' &&\n              o2[key] !== undefined &&\n              !isFunction(o2[key])) return false;\n        }\n        return true;\n      }\n    }\n  }\n  return false;\n}\n\nvar csp = function() {\n  if (isDefined(csp.isActive_)) return csp.isActive_;\n\n  var active = !!(document.querySelector('[ng-csp]') ||\n                  document.querySelector('[data-ng-csp]'));\n\n  if (!active) {\n    try {\n      /* jshint -W031, -W054 */\n      new Function('');\n      /* jshint +W031, +W054 */\n    } catch (e) {\n      active = true;\n    }\n  }\n\n  return (csp.isActive_ = active);\n};\n\n\n\nfunction concat(array1, array2, index) {\n  return array1.concat(slice.call(array2, index));\n}\n\nfunction sliceArgs(args, startIndex) {\n  return slice.call(args, startIndex || 0);\n}\n\n\n/* jshint -W101 */\n/**\n * @ngdoc function\n * @name angular.bind\n * @module ng\n * @kind function\n *\n * @description\n * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for\n * `fn`). You can supply optional `args` that are prebound to the function. This feature is also\n * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as\n * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).\n *\n * @param {Object} self Context which `fn` should be evaluated in.\n * @param {function()} fn Function to be bound.\n * @param {...*} args Optional arguments to be prebound to the `fn` function call.\n * @returns {function()} Function that wraps the `fn` with all the specified bindings.\n */\n/* jshint +W101 */\nfunction bind(self, fn) {\n  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];\n  if (isFunction(fn) && !(fn instanceof RegExp)) {\n    return curryArgs.length\n      ? function() {\n          return arguments.length\n            ? fn.apply(self, concat(curryArgs, arguments, 0))\n            : fn.apply(self, curryArgs);\n        }\n      : function() {\n          return arguments.length\n            ? fn.apply(self, arguments)\n            : fn.call(self);\n        };\n  } else {\n    // in IE, native methods are not functions so they cannot be bound (note: they don't need to be)\n    return fn;\n  }\n}\n\n\nfunction toJsonReplacer(key, value) {\n  var val = value;\n\n  if (typeof key === 'string' && key.charAt(0) === '$' && key.charAt(1) === '$') {\n    val = undefined;\n  } else if (isWindow(value)) {\n    val = '$WINDOW';\n  } else if (value &&  document === value) {\n    val = '$DOCUMENT';\n  } else if (isScope(value)) {\n    val = '$SCOPE';\n  }\n\n  return val;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.toJson\n * @module ng\n * @kind function\n *\n * @description\n * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be\n * stripped since angular uses this notation internally.\n *\n * @param {Object|Array|Date|string|number} obj Input to be serialized into JSON.\n * @param {boolean|number} [pretty=2] If set to true, the JSON output will contain newlines and whitespace.\n *    If set to an integer, the JSON output will contain that many spaces per indentation.\n * @returns {string|undefined} JSON-ified string representing `obj`.\n */\nfunction toJson(obj, pretty) {\n  if (typeof obj === 'undefined') return undefined;\n  if (!isNumber(pretty)) {\n    pretty = pretty ? 2 : null;\n  }\n  return JSON.stringify(obj, toJsonReplacer, pretty);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.fromJson\n * @module ng\n * @kind function\n *\n * @description\n * Deserializes a JSON string.\n *\n * @param {string} json JSON string to deserialize.\n * @returns {Object|Array|string|number} Deserialized JSON string.\n */\nfunction fromJson(json) {\n  return isString(json)\n      ? JSON.parse(json)\n      : json;\n}\n\n\n/**\n * @returns {string} Returns the string representation of the element.\n */\nfunction startingTag(element) {\n  element = jqLite(element).clone();\n  try {\n    // turns out IE does not let you set .html() on elements which\n    // are not allowed to have children. So we just ignore it.\n    element.empty();\n  } catch (e) {}\n  var elemHtml = jqLite('<div>').append(element).html();\n  try {\n    return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :\n        elemHtml.\n          match(/^(<[^>]+>)/)[1].\n          replace(/^<([\\w\\-]+)/, function(match, nodeName) { return '<' + lowercase(nodeName); });\n  } catch (e) {\n    return lowercase(elemHtml);\n  }\n\n}\n\n\n/////////////////////////////////////////////////\n\n/**\n * Tries to decode the URI component without throwing an exception.\n *\n * @private\n * @param str value potential URI component to check.\n * @returns {boolean} True if `value` can be decoded\n * with the decodeURIComponent function.\n */\nfunction tryDecodeURIComponent(value) {\n  try {\n    return decodeURIComponent(value);\n  } catch (e) {\n    // Ignore any invalid uri component\n  }\n}\n\n\n/**\n * Parses an escaped url query string into key-value pairs.\n * @returns {Object.<string,boolean|Array>}\n */\nfunction parseKeyValue(/**string*/keyValue) {\n  var obj = {}, key_value, key;\n  forEach((keyValue || \"\").split('&'), function(keyValue) {\n    if (keyValue) {\n      key_value = keyValue.replace(/\\+/g,'%20').split('=');\n      key = tryDecodeURIComponent(key_value[0]);\n      if (isDefined(key)) {\n        var val = isDefined(key_value[1]) ? tryDecodeURIComponent(key_value[1]) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if (isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key],val];\n        }\n      }\n    }\n  });\n  return obj;\n}\n\nfunction toKeyValue(obj) {\n  var parts = [];\n  forEach(obj, function(value, key) {\n    if (isArray(value)) {\n      forEach(value, function(arrayValue) {\n        parts.push(encodeUriQuery(key, true) +\n                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));\n      });\n    } else {\n    parts.push(encodeUriQuery(key, true) +\n               (value === true ? '' : '=' + encodeUriQuery(value, true)));\n    }\n  });\n  return parts.length ? parts.join('&') : '';\n}\n\n\n/**\n * We need our custom method because encodeURIComponent is too aggressive and doesn't follow\n * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path\n * segments:\n *    segment       = *pchar\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriSegment(val) {\n  return encodeUriQuery(val, true).\n             replace(/%26/gi, '&').\n             replace(/%3D/gi, '=').\n             replace(/%2B/gi, '+');\n}\n\n\n/**\n * This method is intended for encoding *key* or *value* parts of query component. We need a custom\n * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be\n * encoded per http://tools.ietf.org/html/rfc3986:\n *    query       = *( pchar / \"/\" / \"?\" )\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriQuery(val, pctEncodeSpaces) {\n  return encodeURIComponent(val).\n             replace(/%40/gi, '@').\n             replace(/%3A/gi, ':').\n             replace(/%24/g, '$').\n             replace(/%2C/gi, ',').\n             replace(/%3B/gi, ';').\n             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));\n}\n\nvar ngAttrPrefixes = ['ng-', 'data-ng-', 'ng:', 'x-ng-'];\n\nfunction getNgAttribute(element, ngAttr) {\n  var attr, i, ii = ngAttrPrefixes.length;\n  element = jqLite(element);\n  for (i = 0; i < ii; ++i) {\n    attr = ngAttrPrefixes[i] + ngAttr;\n    if (isString(attr = element.attr(attr))) {\n      return attr;\n    }\n  }\n  return null;\n}\n\n/**\n * @ngdoc directive\n * @name ngApp\n * @module ng\n *\n * @element ANY\n * @param {angular.Module} ngApp an optional application\n *   {@link angular.module module} name to load.\n * @param {boolean=} ngStrictDi if this attribute is present on the app element, the injector will be\n *   created in \"strict-di\" mode. This means that the application will fail to invoke functions which\n *   do not use explicit function annotation (and are thus unsuitable for minification), as described\n *   in {@link guide/di the Dependency Injection guide}, and useful debugging info will assist in\n *   tracking down the root of these bugs.\n *\n * @description\n *\n * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive\n * designates the **root element** of the application and is typically placed near the root element\n * of the page - e.g. on the `<body>` or `<html>` tags.\n *\n * Only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`\n * found in the document will be used to define the root element to auto-bootstrap as an\n * application. To run multiple applications in an HTML document you must manually bootstrap them using\n * {@link angular.bootstrap} instead. AngularJS applications cannot be nested within each other.\n *\n * You can specify an **AngularJS module** to be used as the root module for the application.  This\n * module will be loaded into the {@link auto.$injector} when the application is bootstrapped. It\n * should contain the application code needed or have dependencies on other modules that will\n * contain the code. See {@link angular.module} for more information.\n *\n * In the example below if the `ngApp` directive were not placed on the `html` element then the\n * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`\n * would not be resolved to `3`.\n *\n * `ngApp` is the easiest, and most common way to bootstrap an application.\n *\n <example module=\"ngAppDemo\">\n   <file name=\"index.html\">\n   <div ng-controller=\"ngAppDemoController\">\n     I can add: {{a}} + {{b}} =  {{ a+b }}\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {\n     $scope.a = 1;\n     $scope.b = 2;\n   });\n   </file>\n </example>\n *\n * Using `ngStrictDi`, you would see something like this:\n *\n <example ng-app-included=\"true\">\n   <file name=\"index.html\">\n   <div ng-app=\"ngAppStrictDemo\" ng-strict-di>\n       <div ng-controller=\"GoodController1\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style (see\n              script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"GoodController2\">\n           Name: <input ng-model=\"name\"><br />\n           Hello, {{name}}!\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style\n              (see script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"BadController\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>The controller could not be instantiated, due to relying\n              on automatic function annotations (which are disabled in\n              strict mode). As such, the content of this section is not\n              interpolated, and there should be an error in your web console.\n           </p>\n       </div>\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppStrictDemo', [])\n     // BadController will fail to instantiate, due to relying on automatic function annotation,\n     // rather than an explicit annotation\n     .controller('BadController', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     })\n     // Unlike BadController, GoodController1 and GoodController2 will not fail to be instantiated,\n     // due to using explicit annotations using the array style and $inject property, respectively.\n     .controller('GoodController1', ['$scope', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     }])\n     .controller('GoodController2', GoodController2);\n     function GoodController2($scope) {\n       $scope.name = \"World\";\n     }\n     GoodController2.$inject = ['$scope'];\n   </file>\n   <file name=\"style.css\">\n   div[ng-controller] {\n       margin-bottom: 1em;\n       -webkit-border-radius: 4px;\n       border-radius: 4px;\n       border: 1px solid;\n       padding: .5em;\n   }\n   div[ng-controller^=Good] {\n       border-color: #d6e9c6;\n       background-color: #dff0d8;\n       color: #3c763d;\n   }\n   div[ng-controller^=Bad] {\n       border-color: #ebccd1;\n       background-color: #f2dede;\n       color: #a94442;\n       margin-bottom: 0;\n   }\n   </file>\n </example>\n */\nfunction angularInit(element, bootstrap) {\n  var appElement,\n      module,\n      config = {};\n\n  // The element `element` has priority over any other element\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n\n    if (!appElement && element.hasAttribute && element.hasAttribute(name)) {\n      appElement = element;\n      module = element.getAttribute(name);\n    }\n  });\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n    var candidate;\n\n    if (!appElement && (candidate = element.querySelector('[' + name.replace(':', '\\\\:') + ']'))) {\n      appElement = candidate;\n      module = candidate.getAttribute(name);\n    }\n  });\n  if (appElement) {\n    config.strictDi = getNgAttribute(appElement, \"strict-di\") !== null;\n    bootstrap(appElement, module ? [module] : [], config);\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.bootstrap\n * @module ng\n * @description\n * Use this function to manually start up angular application.\n *\n * See: {@link guide/bootstrap Bootstrap}\n *\n * Note that Protractor based end-to-end tests cannot use this function to bootstrap manually.\n * They must use {@link ng.directive:ngApp ngApp}.\n *\n * Angular will detect if it has been loaded into the browser more than once and only allow the\n * first loaded script to be bootstrapped and will report a warning to the browser console for\n * each of the subsequent scripts. This prevents strange results in applications, where otherwise\n * multiple instances of Angular try to work on the DOM.\n *\n * ```html\n * <!doctype html>\n * <html>\n * <body>\n * <div ng-controller=\"WelcomeController\">\n *   {{greeting}}\n * </div>\n *\n * <script src=\"angular.js\"></script>\n * <script>\n *   var app = angular.module('demo', [])\n *   .controller('WelcomeController', function($scope) {\n *       $scope.greeting = 'Welcome!';\n *   });\n *   angular.bootstrap(document, ['demo']);\n * </script>\n * </body>\n * </html>\n * ```\n *\n * @param {DOMElement} element DOM element which is the root of angular application.\n * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n * @param {Object=} config an object for defining configuration options for the application. The\n *     following keys are supported:\n *\n * * `strictDi` - disable automatic function annotation for the application. This is meant to\n *   assist in finding bugs which break minified code. Defaults to `false`.\n *\n * @returns {auto.$injector} Returns the newly created injector for this app.\n */\nfunction bootstrap(element, modules, config) {\n  if (!isObject(config)) config = {};\n  var defaultConfig = {\n    strictDi: false\n  };\n  config = extend(defaultConfig, config);\n  var doBootstrap = function() {\n    element = jqLite(element);\n\n    if (element.injector()) {\n      var tag = (element[0] === document) ? 'document' : startingTag(element);\n      //Encode angle brackets to prevent input from being sanitized to empty string #8683\n      throw ngMinErr(\n          'btstrpd',\n          \"App Already Bootstrapped with this Element '{0}'\",\n          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));\n    }\n\n    modules = modules || [];\n    modules.unshift(['$provide', function($provide) {\n      $provide.value('$rootElement', element);\n    }]);\n\n    if (config.debugInfoEnabled) {\n      // Pushing so that this overrides `debugInfoEnabled` setting defined in user's `modules`.\n      modules.push(['$compileProvider', function($compileProvider) {\n        $compileProvider.debugInfoEnabled(true);\n      }]);\n    }\n\n    modules.unshift('ng');\n    var injector = createInjector(modules, config.strictDi);\n    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector',\n       function bootstrapApply(scope, element, compile, injector) {\n        scope.$apply(function() {\n          element.data('$injector', injector);\n          compile(element)(scope);\n        });\n      }]\n    );\n    return injector;\n  };\n\n  var NG_ENABLE_DEBUG_INFO = /^NG_ENABLE_DEBUG_INFO!/;\n  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;\n\n  if (window && NG_ENABLE_DEBUG_INFO.test(window.name)) {\n    config.debugInfoEnabled = true;\n    window.name = window.name.replace(NG_ENABLE_DEBUG_INFO, '');\n  }\n\n  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {\n    return doBootstrap();\n  }\n\n  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');\n  angular.resumeBootstrap = function(extraModules) {\n    forEach(extraModules, function(module) {\n      modules.push(module);\n    });\n    return doBootstrap();\n  };\n\n  if (isFunction(angular.resumeDeferredBootstrap)) {\n    angular.resumeDeferredBootstrap();\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.reloadWithDebugInfo\n * @module ng\n * @description\n * Use this function to reload the current application with debug information turned on.\n * This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.\n *\n * See {@link ng.$compileProvider#debugInfoEnabled} for more.\n */\nfunction reloadWithDebugInfo() {\n  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;\n  window.location.reload();\n}\n\n/**\n * @name angular.getTestability\n * @module ng\n * @description\n * Get the testability service for the instance of Angular on the given\n * element.\n * @param {DOMElement} element DOM element which is the root of angular application.\n */\nfunction getTestability(rootElement) {\n  var injector = angular.element(rootElement).injector();\n  if (!injector) {\n    throw ngMinErr('test',\n      'no injector found for element argument to getTestability');\n  }\n  return injector.get('$$testability');\n}\n\nvar SNAKE_CASE_REGEXP = /[A-Z]/g;\nfunction snake_case(name, separator) {\n  separator = separator || '_';\n  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n    return (pos ? separator : '') + letter.toLowerCase();\n  });\n}\n\nvar bindJQueryFired = false;\nvar skipDestroyOnNextJQueryCleanData;\nfunction bindJQuery() {\n  var originalCleanData;\n\n  if (bindJQueryFired) {\n    return;\n  }\n\n  // bind to jQuery if present;\n  jQuery = window.jQuery;\n  // Use jQuery if it exists with proper functionality, otherwise default to us.\n  // Angular 1.2+ requires jQuery 1.7+ for on()/off() support.\n  // Angular 1.3+ technically requires at least jQuery 2.1+ but it may work with older\n  // versions. It will not work for sure with jQuery <1.7, though.\n  if (jQuery && jQuery.fn.on) {\n    jqLite = jQuery;\n    extend(jQuery.fn, {\n      scope: JQLitePrototype.scope,\n      isolateScope: JQLitePrototype.isolateScope,\n      controller: JQLitePrototype.controller,\n      injector: JQLitePrototype.injector,\n      inheritedData: JQLitePrototype.inheritedData\n    });\n\n    // All nodes removed from the DOM via various jQuery APIs like .remove()\n    // are passed through jQuery.cleanData. Monkey-patch this method to fire\n    // the $destroy event on all removed nodes.\n    originalCleanData = jQuery.cleanData;\n    jQuery.cleanData = function(elems) {\n      var events;\n      if (!skipDestroyOnNextJQueryCleanData) {\n        for (var i = 0, elem; (elem = elems[i]) != null; i++) {\n          events = jQuery._data(elem, \"events\");\n          if (events && events.$destroy) {\n            jQuery(elem).triggerHandler('$destroy');\n          }\n        }\n      } else {\n        skipDestroyOnNextJQueryCleanData = false;\n      }\n      originalCleanData(elems);\n    };\n  } else {\n    jqLite = JQLite;\n  }\n\n  angular.element = jqLite;\n\n  // Prevent double-proxying.\n  bindJQueryFired = true;\n}\n\n/**\n * throw error if the argument is falsy.\n */\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', \"Argument '{0}' is {1}\", (name || '?'), (reason || \"required\"));\n  }\n  return arg;\n}\n\nfunction assertArgFn(arg, name, acceptArrayAnnotation) {\n  if (acceptArrayAnnotation && isArray(arg)) {\n      arg = arg[arg.length - 1];\n  }\n\n  assertArg(isFunction(arg), name, 'not a function, got ' +\n      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));\n  return arg;\n}\n\n/**\n * throw error if the name given is hasOwnProperty\n * @param  {String} name    the name to test\n * @param  {String} context the context in which the name is used, such as module or directive\n */\nfunction assertNotHasOwnProperty(name, context) {\n  if (name === 'hasOwnProperty') {\n    throw ngMinErr('badname', \"hasOwnProperty is not a valid {0} name\", context);\n  }\n}\n\n/**\n * Return the value accessible from the object by path. Any undefined traversals are ignored\n * @param {Object} obj starting object\n * @param {String} path path to traverse\n * @param {boolean} [bindFnToScope=true]\n * @returns {Object} value as accessible by path\n */\n//TODO(misko): this function needs to be removed\nfunction getter(obj, path, bindFnToScope) {\n  if (!path) return obj;\n  var keys = path.split('.');\n  var key;\n  var lastInstance = obj;\n  var len = keys.length;\n\n  for (var i = 0; i < len; i++) {\n    key = keys[i];\n    if (obj) {\n      obj = (lastInstance = obj)[key];\n    }\n  }\n  if (!bindFnToScope && isFunction(obj)) {\n    return bind(lastInstance, obj);\n  }\n  return obj;\n}\n\n/**\n * Return the DOM siblings between the first and last node in the given array.\n * @param {Array} array like object\n * @returns {jqLite} jqLite collection containing the nodes\n */\nfunction getBlockNodes(nodes) {\n  // TODO(perf): just check if all items in `nodes` are siblings and if they are return the original\n  //             collection, otherwise update the original collection.\n  var node = nodes[0];\n  var endNode = nodes[nodes.length - 1];\n  var blockNodes = [node];\n\n  do {\n    node = node.nextSibling;\n    if (!node) break;\n    blockNodes.push(node);\n  } while (node !== endNode);\n\n  return jqLite(blockNodes);\n}\n\n\n/**\n * Creates a new object without a prototype. This object is useful for lookup without having to\n * guard against prototypically inherited properties via hasOwnProperty.\n *\n * Related micro-benchmarks:\n * - http://jsperf.com/object-create2\n * - http://jsperf.com/proto-map-lookup/2\n * - http://jsperf.com/for-in-vs-object-keys2\n *\n * @returns {Object}\n */\nfunction createMap() {\n  return Object.create(null);\n}\n\nvar NODE_TYPE_ELEMENT = 1;\nvar NODE_TYPE_ATTRIBUTE = 2;\nvar NODE_TYPE_TEXT = 3;\nvar NODE_TYPE_COMMENT = 8;\nvar NODE_TYPE_DOCUMENT = 9;\nvar NODE_TYPE_DOCUMENT_FRAGMENT = 11;\n\n/**\n * @ngdoc type\n * @name angular.Module\n * @module ng\n * @description\n *\n * Interface for configuring angular {@link angular.module modules}.\n */\n\nfunction setupModuleLoader(window) {\n\n  var $injectorMinErr = minErr('$injector');\n  var ngMinErr = minErr('ng');\n\n  function ensure(obj, name, factory) {\n    return obj[name] || (obj[name] = factory());\n  }\n\n  var angular = ensure(window, 'angular', Object);\n\n  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap\n  angular.$$minErr = angular.$$minErr || minErr;\n\n  return ensure(angular, 'module', function() {\n    /** @type {Object.<string, angular.Module>} */\n    var modules = {};\n\n    /**\n     * @ngdoc function\n     * @name angular.module\n     * @module ng\n     * @description\n     *\n     * The `angular.module` is a global place for creating, registering and retrieving Angular\n     * modules.\n     * All modules (angular core or 3rd party) that should be available to an application must be\n     * registered using this mechanism.\n     *\n     * When passed two or more arguments, a new module is created.  If passed only one argument, an\n     * existing module (the name passed as the first argument to `module`) is retrieved.\n     *\n     *\n     * # Module\n     *\n     * A module is a collection of services, directives, controllers, filters, and configuration information.\n     * `angular.module` is used to configure the {@link auto.$injector $injector}.\n     *\n     * ```js\n     * // Create a new module\n     * var myModule = angular.module('myModule', []);\n     *\n     * // register a new service\n     * myModule.value('appName', 'MyCoolApp');\n     *\n     * // configure existing services inside initialization blocks.\n     * myModule.config(['$locationProvider', function($locationProvider) {\n     *   // Configure existing providers\n     *   $locationProvider.hashPrefix('!');\n     * }]);\n     * ```\n     *\n     * Then you can create an injector and load your modules like this:\n     *\n     * ```js\n     * var injector = angular.injector(['ng', 'myModule'])\n     * ```\n     *\n     * However it's more likely that you'll just use\n     * {@link ng.directive:ngApp ngApp} or\n     * {@link angular.bootstrap} to simplify this process for you.\n     *\n     * @param {!string} name The name of the module to create or retrieve.\n     * @param {!Array.<string>=} requires If specified then new module is being created. If\n     *        unspecified then the module is being retrieved for further configuration.\n     * @param {Function=} configFn Optional configuration function for the module. Same as\n     *        {@link angular.Module#config Module#config()}.\n     * @returns {module} new module with the {@link angular.Module} api.\n     */\n    return function module(name, requires, configFn) {\n      var assertNotHasOwnProperty = function(name, context) {\n        if (name === 'hasOwnProperty') {\n          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n        }\n      };\n\n      assertNotHasOwnProperty(name, 'module');\n      if (requires && modules.hasOwnProperty(name)) {\n        modules[name] = null;\n      }\n      return ensure(modules, name, function() {\n        if (!requires) {\n          throw $injectorMinErr('nomod', \"Module '{0}' is not available! You either misspelled \" +\n             \"the module name or forgot to load it. If registering a module ensure that you \" +\n             \"specify the dependencies as the second argument.\", name);\n        }\n\n        /** @type {!Array.<Array.<*>>} */\n        var invokeQueue = [];\n\n        /** @type {!Array.<Function>} */\n        var configBlocks = [];\n\n        /** @type {!Array.<Function>} */\n        var runBlocks = [];\n\n        var config = invokeLater('$injector', 'invoke', 'push', configBlocks);\n\n        /** @type {angular.Module} */\n        var moduleInstance = {\n          // Private state\n          _invokeQueue: invokeQueue,\n          _configBlocks: configBlocks,\n          _runBlocks: runBlocks,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#requires\n           * @module ng\n           *\n           * @description\n           * Holds the list of modules which the injector will load before the current module is\n           * loaded.\n           */\n          requires: requires,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#name\n           * @module ng\n           *\n           * @description\n           * Name of the module.\n           */\n          name: name,\n\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#provider\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerType Construction function for creating new instance of the\n           *                                service.\n           * @description\n           * See {@link auto.$provide#provider $provide.provider()}.\n           */\n          provider: invokeLater('$provide', 'provider'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#factory\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerFunction Function for creating new instance of the service.\n           * @description\n           * See {@link auto.$provide#factory $provide.factory()}.\n           */\n          factory: invokeLater('$provide', 'factory'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#service\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} constructor A constructor function that will be instantiated.\n           * @description\n           * See {@link auto.$provide#service $provide.service()}.\n           */\n          service: invokeLater('$provide', 'service'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#value\n           * @module ng\n           * @param {string} name service name\n           * @param {*} object Service instance object.\n           * @description\n           * See {@link auto.$provide#value $provide.value()}.\n           */\n          value: invokeLater('$provide', 'value'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#constant\n           * @module ng\n           * @param {string} name constant name\n           * @param {*} object Constant value.\n           * @description\n           * Because the constant are fixed, they get applied before other provide methods.\n           * See {@link auto.$provide#constant $provide.constant()}.\n           */\n          constant: invokeLater('$provide', 'constant', 'unshift'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#animation\n           * @module ng\n           * @param {string} name animation name\n           * @param {Function} animationFactory Factory function for creating new instance of an\n           *                                    animation.\n           * @description\n           *\n           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.\n           *\n           *\n           * Defines an animation hook that can be later used with\n           * {@link ngAnimate.$animate $animate} service and directives that use this service.\n           *\n           * ```js\n           * module.animation('.animation-name', function($inject1, $inject2) {\n           *   return {\n           *     eventName : function(element, done) {\n           *       //code to run the animation\n           *       //once complete, then run done()\n           *       return function cancellationFunction(element) {\n           *         //code to cancel the animation\n           *       }\n           *     }\n           *   }\n           * })\n           * ```\n           *\n           * See {@link ng.$animateProvider#register $animateProvider.register()} and\n           * {@link ngAnimate ngAnimate module} for more information.\n           */\n          animation: invokeLater('$animateProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#filter\n           * @module ng\n           * @param {string} name Filter name - this must be a valid angular expression identifier\n           * @param {Function} filterFactory Factory function for creating new instance of filter.\n           * @description\n           * See {@link ng.$filterProvider#register $filterProvider.register()}.\n           *\n           * <div class=\"alert alert-warning\">\n           * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n           * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n           * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n           * (`myapp_subsection_filterx`).\n           * </div>\n           */\n          filter: invokeLater('$filterProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#controller\n           * @module ng\n           * @param {string|Object} name Controller name, or an object map of controllers where the\n           *    keys are the names and the values are the constructors.\n           * @param {Function} constructor Controller constructor function.\n           * @description\n           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.\n           */\n          controller: invokeLater('$controllerProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#directive\n           * @module ng\n           * @param {string|Object} name Directive name, or an object map of directives where the\n           *    keys are the names and the values are the factories.\n           * @param {Function} directiveFactory Factory function for creating new instance of\n           * directives.\n           * @description\n           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.\n           */\n          directive: invokeLater('$compileProvider', 'directive'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#config\n           * @module ng\n           * @param {Function} configFn Execute this function on module load. Useful for service\n           *    configuration.\n           * @description\n           * Use this method to register work which needs to be performed on module loading.\n           * For more about how to configure services, see\n           * {@link providers#provider-recipe Provider Recipe}.\n           */\n          config: config,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#run\n           * @module ng\n           * @param {Function} initializationFn Execute this function after injector creation.\n           *    Useful for application initialization.\n           * @description\n           * Use this method to register work which should be performed when the injector is done\n           * loading all modules.\n           */\n          run: function(block) {\n            runBlocks.push(block);\n            return this;\n          }\n        };\n\n        if (configFn) {\n          config(configFn);\n        }\n\n        return moduleInstance;\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @param {String=} insertMethod\n         * @returns {angular.Module}\n         */\n        function invokeLater(provider, method, insertMethod, queue) {\n          if (!queue) queue = invokeQueue;\n          return function() {\n            queue[insertMethod || 'push']([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n      });\n    };\n  });\n\n}\n\n/* global: toDebugString: true */\n\nfunction serializeObject(obj) {\n  var seen = [];\n\n  return JSON.stringify(obj, function(key, val) {\n    val = toJsonReplacer(key, val);\n    if (isObject(val)) {\n\n      if (seen.indexOf(val) >= 0) return '<<already seen>>';\n\n      seen.push(val);\n    }\n    return val;\n  });\n}\n\nfunction toDebugString(obj) {\n  if (typeof obj === 'function') {\n    return obj.toString().replace(/ \\{[\\s\\S]*$/, '');\n  } else if (typeof obj === 'undefined') {\n    return 'undefined';\n  } else if (typeof obj !== 'string') {\n    return serializeObject(obj);\n  }\n  return obj;\n}\n\n/* global angularModule: true,\n  version: true,\n\n  $LocaleProvider,\n  $CompileProvider,\n\n  htmlAnchorDirective,\n  inputDirective,\n  inputDirective,\n  formDirective,\n  scriptDirective,\n  selectDirective,\n  styleDirective,\n  optionDirective,\n  ngBindDirective,\n  ngBindHtmlDirective,\n  ngBindTemplateDirective,\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective,\n  ngCspDirective,\n  ngCloakDirective,\n  ngControllerDirective,\n  ngFormDirective,\n  ngHideDirective,\n  ngIfDirective,\n  ngIncludeDirective,\n  ngIncludeFillContentDirective,\n  ngInitDirective,\n  ngNonBindableDirective,\n  ngPluralizeDirective,\n  ngRepeatDirective,\n  ngShowDirective,\n  ngStyleDirective,\n  ngSwitchDirective,\n  ngSwitchWhenDirective,\n  ngSwitchDefaultDirective,\n  ngOptionsDirective,\n  ngTranscludeDirective,\n  ngModelDirective,\n  ngListDirective,\n  ngChangeDirective,\n  patternDirective,\n  patternDirective,\n  requiredDirective,\n  requiredDirective,\n  minlengthDirective,\n  minlengthDirective,\n  maxlengthDirective,\n  maxlengthDirective,\n  ngValueDirective,\n  ngModelOptionsDirective,\n  ngAttributeAliasDirectives,\n  ngEventDirectives,\n\n  $AnchorScrollProvider,\n  $AnimateProvider,\n  $BrowserProvider,\n  $CacheFactoryProvider,\n  $ControllerProvider,\n  $DocumentProvider,\n  $ExceptionHandlerProvider,\n  $FilterProvider,\n  $InterpolateProvider,\n  $IntervalProvider,\n  $HttpProvider,\n  $HttpBackendProvider,\n  $LocationProvider,\n  $LogProvider,\n  $ParseProvider,\n  $RootScopeProvider,\n  $QProvider,\n  $$QProvider,\n  $$SanitizeUriProvider,\n  $SceProvider,\n  $SceDelegateProvider,\n  $SnifferProvider,\n  $TemplateCacheProvider,\n  $TemplateRequestProvider,\n  $$TestabilityProvider,\n  $TimeoutProvider,\n  $$RAFProvider,\n  $$AsyncCallbackProvider,\n  $WindowProvider,\n  $$jqLiteProvider\n*/\n\n\n/**\n * @ngdoc object\n * @name angular.version\n * @module ng\n * @description\n * An object that contains information about the current AngularJS version. This object has the\n * following properties:\n *\n * - `full` – `{string}` – Full version string, such as \"0.9.18\".\n * - `major` – `{number}` – Major version number, such as \"0\".\n * - `minor` – `{number}` – Minor version number, such as \"9\".\n * - `dot` – `{number}` – Dot version number, such as \"18\".\n * - `codeName` – `{string}` – Code name of the release, such as \"jiggling-armfat\".\n */\nvar version = {\n  full: '1.3.20',    // all of these placeholder strings will be replaced by grunt's\n  major: 1,    // package task\n  minor: 3,\n  dot: 20,\n  codeName: 'shallow-translucence'\n};\n\n\nfunction publishExternalAPI(angular) {\n  extend(angular, {\n    'bootstrap': bootstrap,\n    'copy': copy,\n    'extend': extend,\n    'equals': equals,\n    'element': jqLite,\n    'forEach': forEach,\n    'injector': createInjector,\n    'noop': noop,\n    'bind': bind,\n    'toJson': toJson,\n    'fromJson': fromJson,\n    'identity': identity,\n    'isUndefined': isUndefined,\n    'isDefined': isDefined,\n    'isString': isString,\n    'isFunction': isFunction,\n    'isObject': isObject,\n    'isNumber': isNumber,\n    'isElement': isElement,\n    'isArray': isArray,\n    'version': version,\n    'isDate': isDate,\n    'lowercase': lowercase,\n    'uppercase': uppercase,\n    'callbacks': {counter: 0},\n    'getTestability': getTestability,\n    '$$minErr': minErr,\n    '$$csp': csp,\n    'reloadWithDebugInfo': reloadWithDebugInfo\n  });\n\n  angularModule = setupModuleLoader(window);\n  try {\n    angularModule('ngLocale');\n  } catch (e) {\n    angularModule('ngLocale', []).provider('$locale', $LocaleProvider);\n  }\n\n  angularModule('ng', ['ngLocale'], ['$provide',\n    function ngModule($provide) {\n      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.\n      $provide.provider({\n        $$sanitizeUri: $$SanitizeUriProvider\n      });\n      $provide.provider('$compile', $CompileProvider).\n        directive({\n            a: htmlAnchorDirective,\n            input: inputDirective,\n            textarea: inputDirective,\n            form: formDirective,\n            script: scriptDirective,\n            select: selectDirective,\n            style: styleDirective,\n            option: optionDirective,\n            ngBind: ngBindDirective,\n            ngBindHtml: ngBindHtmlDirective,\n            ngBindTemplate: ngBindTemplateDirective,\n            ngClass: ngClassDirective,\n            ngClassEven: ngClassEvenDirective,\n            ngClassOdd: ngClassOddDirective,\n            ngCloak: ngCloakDirective,\n            ngController: ngControllerDirective,\n            ngForm: ngFormDirective,\n            ngHide: ngHideDirective,\n            ngIf: ngIfDirective,\n            ngInclude: ngIncludeDirective,\n            ngInit: ngInitDirective,\n            ngNonBindable: ngNonBindableDirective,\n            ngPluralize: ngPluralizeDirective,\n            ngRepeat: ngRepeatDirective,\n            ngShow: ngShowDirective,\n            ngStyle: ngStyleDirective,\n            ngSwitch: ngSwitchDirective,\n            ngSwitchWhen: ngSwitchWhenDirective,\n            ngSwitchDefault: ngSwitchDefaultDirective,\n            ngOptions: ngOptionsDirective,\n            ngTransclude: ngTranscludeDirective,\n            ngModel: ngModelDirective,\n            ngList: ngListDirective,\n            ngChange: ngChangeDirective,\n            pattern: patternDirective,\n            ngPattern: patternDirective,\n            required: requiredDirective,\n            ngRequired: requiredDirective,\n            minlength: minlengthDirective,\n            ngMinlength: minlengthDirective,\n            maxlength: maxlengthDirective,\n            ngMaxlength: maxlengthDirective,\n            ngValue: ngValueDirective,\n            ngModelOptions: ngModelOptionsDirective\n        }).\n        directive({\n          ngInclude: ngIncludeFillContentDirective\n        }).\n        directive(ngAttributeAliasDirectives).\n        directive(ngEventDirectives);\n      $provide.provider({\n        $anchorScroll: $AnchorScrollProvider,\n        $animate: $AnimateProvider,\n        $browser: $BrowserProvider,\n        $cacheFactory: $CacheFactoryProvider,\n        $controller: $ControllerProvider,\n        $document: $DocumentProvider,\n        $exceptionHandler: $ExceptionHandlerProvider,\n        $filter: $FilterProvider,\n        $interpolate: $InterpolateProvider,\n        $interval: $IntervalProvider,\n        $http: $HttpProvider,\n        $httpBackend: $HttpBackendProvider,\n        $location: $LocationProvider,\n        $log: $LogProvider,\n        $parse: $ParseProvider,\n        $rootScope: $RootScopeProvider,\n        $q: $QProvider,\n        $$q: $$QProvider,\n        $sce: $SceProvider,\n        $sceDelegate: $SceDelegateProvider,\n        $sniffer: $SnifferProvider,\n        $templateCache: $TemplateCacheProvider,\n        $templateRequest: $TemplateRequestProvider,\n        $$testability: $$TestabilityProvider,\n        $timeout: $TimeoutProvider,\n        $window: $WindowProvider,\n        $$rAF: $$RAFProvider,\n        $$asyncCallback: $$AsyncCallbackProvider,\n        $$jqLite: $$jqLiteProvider\n      });\n    }\n  ]);\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* global JQLitePrototype: true,\n  addEventListenerFn: true,\n  removeEventListenerFn: true,\n  BOOLEAN_ATTR: true,\n  ALIASED_ATTR: true,\n*/\n\n//////////////////////////////////\n//JQLite\n//////////////////////////////////\n\n/**\n * @ngdoc function\n * @name angular.element\n * @module ng\n * @kind function\n *\n * @description\n * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.\n *\n * If jQuery is available, `angular.element` is an alias for the\n * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`\n * delegates to Angular's built-in subset of jQuery, called \"jQuery lite\" or \"jqLite.\"\n *\n * <div class=\"alert alert-success\">jqLite is a tiny, API-compatible subset of jQuery that allows\n * Angular to manipulate the DOM in a cross-browser compatible way. **jqLite** implements only the most\n * commonly needed functionality with the goal of having a very small footprint.</div>\n *\n * To use `jQuery`, simply ensure it is loaded before the `angular.js` file.\n *\n * <div class=\"alert\">**Note:** all element references in Angular are always wrapped with jQuery or\n * jqLite; they are never raw DOM references.</div>\n *\n * ## Angular's jqLite\n * jqLite provides only the following jQuery methods:\n *\n * - [`addClass()`](http://api.jquery.com/addClass/)\n * - [`after()`](http://api.jquery.com/after/)\n * - [`append()`](http://api.jquery.com/append/)\n * - [`attr()`](http://api.jquery.com/attr/) - Does not support functions as parameters\n * - [`bind()`](http://api.jquery.com/bind/) - Does not support namespaces, selectors or eventData\n * - [`children()`](http://api.jquery.com/children/) - Does not support selectors\n * - [`clone()`](http://api.jquery.com/clone/)\n * - [`contents()`](http://api.jquery.com/contents/)\n * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`. As a setter, does not convert numbers to strings or append 'px'.\n * - [`data()`](http://api.jquery.com/data/)\n * - [`detach()`](http://api.jquery.com/detach/)\n * - [`empty()`](http://api.jquery.com/empty/)\n * - [`eq()`](http://api.jquery.com/eq/)\n * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name\n * - [`hasClass()`](http://api.jquery.com/hasClass/)\n * - [`html()`](http://api.jquery.com/html/)\n * - [`next()`](http://api.jquery.com/next/) - Does not support selectors\n * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData\n * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces or selectors\n * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors\n * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors\n * - [`prepend()`](http://api.jquery.com/prepend/)\n * - [`prop()`](http://api.jquery.com/prop/)\n * - [`ready()`](http://api.jquery.com/ready/)\n * - [`remove()`](http://api.jquery.com/remove/)\n * - [`removeAttr()`](http://api.jquery.com/removeAttr/)\n * - [`removeClass()`](http://api.jquery.com/removeClass/)\n * - [`removeData()`](http://api.jquery.com/removeData/)\n * - [`replaceWith()`](http://api.jquery.com/replaceWith/)\n * - [`text()`](http://api.jquery.com/text/)\n * - [`toggleClass()`](http://api.jquery.com/toggleClass/)\n * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers.\n * - [`unbind()`](http://api.jquery.com/unbind/) - Does not support namespaces\n * - [`val()`](http://api.jquery.com/val/)\n * - [`wrap()`](http://api.jquery.com/wrap/)\n *\n * ## jQuery/jqLite Extras\n * Angular also provides the following additional methods and events to both jQuery and jqLite:\n *\n * ### Events\n * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event\n *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM\n *    element before it is removed.\n *\n * ### Methods\n * - `controller(name)` - retrieves the controller of the current element or its parent. By default\n *   retrieves controller associated with the `ngController` directive. If `name` is provided as\n *   camelCase directive name, then the controller for this directive will be retrieved (e.g.\n *   `'ngModel'`).\n * - `injector()` - retrieves the injector of the current element or its parent.\n * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current\n *   element or its parent. Requires {@link guide/production#disabling-debug-data Debug Data} to\n *   be enabled.\n * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the\n *   current element. This getter should be used only on elements that contain a directive which starts a new isolate\n *   scope. Calling `scope()` on this element always returns the original non-isolate scope.\n *   Requires {@link guide/production#disabling-debug-data Debug Data} to be enabled.\n * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top\n *   parent element is reached.\n *\n * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.\n * @returns {Object} jQuery object.\n */\n\nJQLite.expando = 'ng339';\n\nvar jqCache = JQLite.cache = {},\n    jqId = 1,\n    addEventListenerFn = function(element, type, fn) {\n      element.addEventListener(type, fn, false);\n    },\n    removeEventListenerFn = function(element, type, fn) {\n      element.removeEventListener(type, fn, false);\n    };\n\n/*\n * !!! This is an undocumented \"private\" function !!!\n */\nJQLite._data = function(node) {\n  //jQuery always returns an object on cache miss\n  return this.cache[node[this.expando]] || {};\n};\n\nfunction jqNextId() { return ++jqId; }\n\n\nvar SPECIAL_CHARS_REGEXP = /([\\:\\-\\_]+(.))/g;\nvar MOZ_HACK_REGEXP = /^moz([A-Z])/;\nvar MOUSE_EVENT_MAP= { mouseleave: \"mouseout\", mouseenter: \"mouseover\"};\nvar jqLiteMinErr = minErr('jqLite');\n\n/**\n * Converts snake_case to camelCase.\n * Also there is special case for Moz prefix starting with upper case letter.\n * @param name Name to normalize\n */\nfunction camelCase(name) {\n  return name.\n    replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    }).\n    replace(MOZ_HACK_REGEXP, 'Moz$1');\n}\n\nvar SINGLE_TAG_REGEXP = /^<(\\w+)\\s*\\/?>(?:<\\/\\1>|)$/;\nvar HTML_REGEXP = /<|&#?\\w+;/;\nvar TAG_NAME_REGEXP = /<([\\w:]+)/;\nvar XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:]+)[^>]*)\\/>/gi;\n\nvar wrapMap = {\n  'option': [1, '<select multiple=\"multiple\">', '</select>'],\n\n  'thead': [1, '<table>', '</table>'],\n  'col': [2, '<table><colgroup>', '</colgroup></table>'],\n  'tr': [2, '<table><tbody>', '</tbody></table>'],\n  'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],\n  '_default': [0, \"\", \"\"]\n};\n\nwrapMap.optgroup = wrapMap.option;\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\n\nfunction jqLiteIsTextNode(html) {\n  return !HTML_REGEXP.test(html);\n}\n\nfunction jqLiteAcceptsData(node) {\n  // The window object can accept data but has no nodeType\n  // Otherwise we are only interested in elements (1) and documents (9)\n  var nodeType = node.nodeType;\n  return nodeType === NODE_TYPE_ELEMENT || !nodeType || nodeType === NODE_TYPE_DOCUMENT;\n}\n\nfunction jqLiteBuildFragment(html, context) {\n  var tmp, tag, wrap,\n      fragment = context.createDocumentFragment(),\n      nodes = [], i;\n\n  if (jqLiteIsTextNode(html)) {\n    // Convert non-html into a text node\n    nodes.push(context.createTextNode(html));\n  } else {\n    // Convert html into DOM nodes\n    tmp = tmp || fragment.appendChild(context.createElement(\"div\"));\n    tag = (TAG_NAME_REGEXP.exec(html) || [\"\", \"\"])[1].toLowerCase();\n    wrap = wrapMap[tag] || wrapMap._default;\n    tmp.innerHTML = wrap[1] + html.replace(XHTML_TAG_REGEXP, \"<$1></$2>\") + wrap[2];\n\n    // Descend through wrappers to the right content\n    i = wrap[0];\n    while (i--) {\n      tmp = tmp.lastChild;\n    }\n\n    nodes = concat(nodes, tmp.childNodes);\n\n    tmp = fragment.firstChild;\n    tmp.textContent = \"\";\n  }\n\n  // Remove wrapper from fragment\n  fragment.textContent = \"\";\n  fragment.innerHTML = \"\"; // Clear inner HTML\n  forEach(nodes, function(node) {\n    fragment.appendChild(node);\n  });\n\n  return fragment;\n}\n\nfunction jqLiteParseHTML(html, context) {\n  context = context || document;\n  var parsed;\n\n  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {\n    return [context.createElement(parsed[1])];\n  }\n\n  if ((parsed = jqLiteBuildFragment(html, context))) {\n    return parsed.childNodes;\n  }\n\n  return [];\n}\n\n/////////////////////////////////////////////\nfunction JQLite(element) {\n  if (element instanceof JQLite) {\n    return element;\n  }\n\n  var argIsString;\n\n  if (isString(element)) {\n    element = trim(element);\n    argIsString = true;\n  }\n  if (!(this instanceof JQLite)) {\n    if (argIsString && element.charAt(0) != '<') {\n      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');\n    }\n    return new JQLite(element);\n  }\n\n  if (argIsString) {\n    jqLiteAddNodes(this, jqLiteParseHTML(element));\n  } else {\n    jqLiteAddNodes(this, element);\n  }\n}\n\nfunction jqLiteClone(element) {\n  return element.cloneNode(true);\n}\n\nfunction jqLiteDealoc(element, onlyDescendants) {\n  if (!onlyDescendants) jqLiteRemoveData(element);\n\n  if (element.querySelectorAll) {\n    var descendants = element.querySelectorAll('*');\n    for (var i = 0, l = descendants.length; i < l; i++) {\n      jqLiteRemoveData(descendants[i]);\n    }\n  }\n}\n\nfunction jqLiteOff(element, type, fn, unsupported) {\n  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');\n\n  var expandoStore = jqLiteExpandoStore(element);\n  var events = expandoStore && expandoStore.events;\n  var handle = expandoStore && expandoStore.handle;\n\n  if (!handle) return; //no listeners registered\n\n  if (!type) {\n    for (type in events) {\n      if (type !== '$destroy') {\n        removeEventListenerFn(element, type, handle);\n      }\n      delete events[type];\n    }\n  } else {\n    forEach(type.split(' '), function(type) {\n      if (isDefined(fn)) {\n        var listenerFns = events[type];\n        arrayRemove(listenerFns || [], fn);\n        if (listenerFns && listenerFns.length > 0) {\n          return;\n        }\n      }\n\n      removeEventListenerFn(element, type, handle);\n      delete events[type];\n    });\n  }\n}\n\nfunction jqLiteRemoveData(element, name) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  if (expandoStore) {\n    if (name) {\n      delete expandoStore.data[name];\n      return;\n    }\n\n    if (expandoStore.handle) {\n      if (expandoStore.events.$destroy) {\n        expandoStore.handle({}, '$destroy');\n      }\n      jqLiteOff(element);\n    }\n    delete jqCache[expandoId];\n    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it\n  }\n}\n\n\nfunction jqLiteExpandoStore(element, createIfNecessary) {\n  var expandoId = element.ng339,\n      expandoStore = expandoId && jqCache[expandoId];\n\n  if (createIfNecessary && !expandoStore) {\n    element.ng339 = expandoId = jqNextId();\n    expandoStore = jqCache[expandoId] = {events: {}, data: {}, handle: undefined};\n  }\n\n  return expandoStore;\n}\n\n\nfunction jqLiteData(element, key, value) {\n  if (jqLiteAcceptsData(element)) {\n\n    var isSimpleSetter = isDefined(value);\n    var isSimpleGetter = !isSimpleSetter && key && !isObject(key);\n    var massGetter = !key;\n    var expandoStore = jqLiteExpandoStore(element, !isSimpleGetter);\n    var data = expandoStore && expandoStore.data;\n\n    if (isSimpleSetter) { // data('key', value)\n      data[key] = value;\n    } else {\n      if (massGetter) {  // data()\n        return data;\n      } else {\n        if (isSimpleGetter) { // data('key')\n          // don't force creation of expandoStore if it doesn't exist yet\n          return data && data[key];\n        } else { // mass-setter: data({key1: val1, key2: val2})\n          extend(data, key);\n        }\n      }\n    }\n  }\n}\n\nfunction jqLiteHasClass(element, selector) {\n  if (!element.getAttribute) return false;\n  return ((\" \" + (element.getAttribute('class') || '') + \" \").replace(/[\\n\\t]/g, \" \").\n      indexOf(\" \" + selector + \" \") > -1);\n}\n\nfunction jqLiteRemoveClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    forEach(cssClasses.split(' '), function(cssClass) {\n      element.setAttribute('class', trim(\n          (\" \" + (element.getAttribute('class') || '') + \" \")\n          .replace(/[\\n\\t]/g, \" \")\n          .replace(\" \" + trim(cssClass) + \" \", \" \"))\n      );\n    });\n  }\n}\n\nfunction jqLiteAddClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, \" \");\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      if (existingClasses.indexOf(' ' + cssClass + ' ') === -1) {\n        existingClasses += cssClass + ' ';\n      }\n    });\n\n    element.setAttribute('class', trim(existingClasses));\n  }\n}\n\n\nfunction jqLiteAddNodes(root, elements) {\n  // THIS CODE IS VERY HOT. Don't make changes without benchmarking.\n\n  if (elements) {\n\n    // if a Node (the most common case)\n    if (elements.nodeType) {\n      root[root.length++] = elements;\n    } else {\n      var length = elements.length;\n\n      // if an Array or NodeList and not a Window\n      if (typeof length === 'number' && elements.window !== elements) {\n        if (length) {\n          for (var i = 0; i < length; i++) {\n            root[root.length++] = elements[i];\n          }\n        }\n      } else {\n        root[root.length++] = elements;\n      }\n    }\n  }\n}\n\n\nfunction jqLiteController(element, name) {\n  return jqLiteInheritedData(element, '$' + (name || 'ngController') + 'Controller');\n}\n\nfunction jqLiteInheritedData(element, name, value) {\n  // if element is the document object work with the html element instead\n  // this makes $(document).scope() possible\n  if (element.nodeType == NODE_TYPE_DOCUMENT) {\n    element = element.documentElement;\n  }\n  var names = isArray(name) ? name : [name];\n\n  while (element) {\n    for (var i = 0, ii = names.length; i < ii; i++) {\n      if ((value = jqLite.data(element, names[i])) !== undefined) return value;\n    }\n\n    // If dealing with a document fragment node with a host element, and no parent, use the host\n    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM\n    // to lookup parent controllers.\n    element = element.parentNode || (element.nodeType === NODE_TYPE_DOCUMENT_FRAGMENT && element.host);\n  }\n}\n\nfunction jqLiteEmpty(element) {\n  jqLiteDealoc(element, true);\n  while (element.firstChild) {\n    element.removeChild(element.firstChild);\n  }\n}\n\nfunction jqLiteRemove(element, keepData) {\n  if (!keepData) jqLiteDealoc(element);\n  var parent = element.parentNode;\n  if (parent) parent.removeChild(element);\n}\n\n\nfunction jqLiteDocumentLoaded(action, win) {\n  win = win || window;\n  if (win.document.readyState === 'complete') {\n    // Force the action to be run async for consistent behaviour\n    // from the action's point of view\n    // i.e. it will definitely not be in a $apply\n    win.setTimeout(action);\n  } else {\n    // No need to unbind this handler as load is only ever called once\n    jqLite(win).on('load', action);\n  }\n}\n\n//////////////////////////////////////////\n// Functions which are declared directly.\n//////////////////////////////////////////\nvar JQLitePrototype = JQLite.prototype = {\n  ready: function(fn) {\n    var fired = false;\n\n    function trigger() {\n      if (fired) return;\n      fired = true;\n      fn();\n    }\n\n    // check if document is already loaded\n    if (document.readyState === 'complete') {\n      setTimeout(trigger);\n    } else {\n      this.on('DOMContentLoaded', trigger); // works for modern browsers and IE9\n      // we can not use jqLite since we are not done loading and jQuery could be loaded later.\n      // jshint -W064\n      JQLite(window).on('load', trigger); // fallback to window.onload for others\n      // jshint +W064\n    }\n  },\n  toString: function() {\n    var value = [];\n    forEach(this, function(e) { value.push('' + e);});\n    return '[' + value.join(', ') + ']';\n  },\n\n  eq: function(index) {\n      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);\n  },\n\n  length: 0,\n  push: push,\n  sort: [].sort,\n  splice: [].splice\n};\n\n//////////////////////////////////////////\n// Functions iterating getter/setters.\n// these functions return self on setter and\n// value on get.\n//////////////////////////////////////////\nvar BOOLEAN_ATTR = {};\nforEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {\n  BOOLEAN_ATTR[lowercase(value)] = value;\n});\nvar BOOLEAN_ELEMENTS = {};\nforEach('input,select,option,textarea,button,form,details'.split(','), function(value) {\n  BOOLEAN_ELEMENTS[value] = true;\n});\nvar ALIASED_ATTR = {\n  'ngMinlength': 'minlength',\n  'ngMaxlength': 'maxlength',\n  'ngMin': 'min',\n  'ngMax': 'max',\n  'ngPattern': 'pattern'\n};\n\nfunction getBooleanAttrName(element, name) {\n  // check dom last since we will most likely fail on name\n  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];\n\n  // booleanAttr is here twice to minimize DOM access\n  return booleanAttr && BOOLEAN_ELEMENTS[nodeName_(element)] && booleanAttr;\n}\n\nfunction getAliasedAttrName(element, name) {\n  var nodeName = element.nodeName;\n  return (nodeName === 'INPUT' || nodeName === 'TEXTAREA') && ALIASED_ATTR[name];\n}\n\nforEach({\n  data: jqLiteData,\n  removeData: jqLiteRemoveData\n}, function(fn, name) {\n  JQLite[name] = fn;\n});\n\nforEach({\n  data: jqLiteData,\n  inheritedData: jqLiteInheritedData,\n\n  scope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);\n  },\n\n  isolateScope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');\n  },\n\n  controller: jqLiteController,\n\n  injector: function(element) {\n    return jqLiteInheritedData(element, '$injector');\n  },\n\n  removeAttr: function(element, name) {\n    element.removeAttribute(name);\n  },\n\n  hasClass: jqLiteHasClass,\n\n  css: function(element, name, value) {\n    name = camelCase(name);\n\n    if (isDefined(value)) {\n      element.style[name] = value;\n    } else {\n      return element.style[name];\n    }\n  },\n\n  attr: function(element, name, value) {\n    var nodeType = element.nodeType;\n    if (nodeType === NODE_TYPE_TEXT || nodeType === NODE_TYPE_ATTRIBUTE || nodeType === NODE_TYPE_COMMENT) {\n      return;\n    }\n    var lowercasedName = lowercase(name);\n    if (BOOLEAN_ATTR[lowercasedName]) {\n      if (isDefined(value)) {\n        if (!!value) {\n          element[name] = true;\n          element.setAttribute(name, lowercasedName);\n        } else {\n          element[name] = false;\n          element.removeAttribute(lowercasedName);\n        }\n      } else {\n        return (element[name] ||\n                 (element.attributes.getNamedItem(name) || noop).specified)\n               ? lowercasedName\n               : undefined;\n      }\n    } else if (isDefined(value)) {\n      element.setAttribute(name, value);\n    } else if (element.getAttribute) {\n      // the extra argument \"2\" is to get the right thing for a.href in IE, see jQuery code\n      // some elements (e.g. Document) don't have get attribute, so return undefined\n      var ret = element.getAttribute(name, 2);\n      // normalize non-existing attributes to undefined (as jQuery)\n      return ret === null ? undefined : ret;\n    }\n  },\n\n  prop: function(element, name, value) {\n    if (isDefined(value)) {\n      element[name] = value;\n    } else {\n      return element[name];\n    }\n  },\n\n  text: (function() {\n    getText.$dv = '';\n    return getText;\n\n    function getText(element, value) {\n      if (isUndefined(value)) {\n        var nodeType = element.nodeType;\n        return (nodeType === NODE_TYPE_ELEMENT || nodeType === NODE_TYPE_TEXT) ? element.textContent : '';\n      }\n      element.textContent = value;\n    }\n  })(),\n\n  val: function(element, value) {\n    if (isUndefined(value)) {\n      if (element.multiple && nodeName_(element) === 'select') {\n        var result = [];\n        forEach(element.options, function(option) {\n          if (option.selected) {\n            result.push(option.value || option.text);\n          }\n        });\n        return result.length === 0 ? null : result;\n      }\n      return element.value;\n    }\n    element.value = value;\n  },\n\n  html: function(element, value) {\n    if (isUndefined(value)) {\n      return element.innerHTML;\n    }\n    jqLiteDealoc(element, true);\n    element.innerHTML = value;\n  },\n\n  empty: jqLiteEmpty\n}, function(fn, name) {\n  /**\n   * Properties: writes return selection, reads return first value\n   */\n  JQLite.prototype[name] = function(arg1, arg2) {\n    var i, key;\n    var nodeCount = this.length;\n\n    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it\n    // in a way that survives minification.\n    // jqLiteEmpty takes no arguments but is a setter.\n    if (fn !== jqLiteEmpty &&\n        (((fn.length == 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2) === undefined)) {\n      if (isObject(arg1)) {\n\n        // we are a write, but the object properties are the key/values\n        for (i = 0; i < nodeCount; i++) {\n          if (fn === jqLiteData) {\n            // data() takes the whole object in jQuery\n            fn(this[i], arg1);\n          } else {\n            for (key in arg1) {\n              fn(this[i], key, arg1[key]);\n            }\n          }\n        }\n        // return self for chaining\n        return this;\n      } else {\n        // we are a read, so read the first child.\n        // TODO: do we still need this?\n        var value = fn.$dv;\n        // Only if we have $dv do we iterate over all, otherwise it is just the first element.\n        var jj = (value === undefined) ? Math.min(nodeCount, 1) : nodeCount;\n        for (var j = 0; j < jj; j++) {\n          var nodeValue = fn(this[j], arg1, arg2);\n          value = value ? value + nodeValue : nodeValue;\n        }\n        return value;\n      }\n    } else {\n      // we are a write, so apply to all children\n      for (i = 0; i < nodeCount; i++) {\n        fn(this[i], arg1, arg2);\n      }\n      // return self for chaining\n      return this;\n    }\n  };\n});\n\nfunction createEventHandler(element, events) {\n  var eventHandler = function(event, type) {\n    // jQuery specific api\n    event.isDefaultPrevented = function() {\n      return event.defaultPrevented;\n    };\n\n    var eventFns = events[type || event.type];\n    var eventFnsLength = eventFns ? eventFns.length : 0;\n\n    if (!eventFnsLength) return;\n\n    if (isUndefined(event.immediatePropagationStopped)) {\n      var originalStopImmediatePropagation = event.stopImmediatePropagation;\n      event.stopImmediatePropagation = function() {\n        event.immediatePropagationStopped = true;\n\n        if (event.stopPropagation) {\n          event.stopPropagation();\n        }\n\n        if (originalStopImmediatePropagation) {\n          originalStopImmediatePropagation.call(event);\n        }\n      };\n    }\n\n    event.isImmediatePropagationStopped = function() {\n      return event.immediatePropagationStopped === true;\n    };\n\n    // Copy event handlers in case event handlers array is modified during execution.\n    if ((eventFnsLength > 1)) {\n      eventFns = shallowCopy(eventFns);\n    }\n\n    for (var i = 0; i < eventFnsLength; i++) {\n      if (!event.isImmediatePropagationStopped()) {\n        eventFns[i].call(element, event);\n      }\n    }\n  };\n\n  // TODO: this is a hack for angularMocks/clearDataCache that makes it possible to deregister all\n  //       events on `element`\n  eventHandler.elem = element;\n  return eventHandler;\n}\n\n//////////////////////////////////////////\n// Functions iterating traversal.\n// These functions chain results into a single\n// selector.\n//////////////////////////////////////////\nforEach({\n  removeData: jqLiteRemoveData,\n\n  on: function jqLiteOn(element, type, fn, unsupported) {\n    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');\n\n    // Do not add event handlers to non-elements because they will not be cleaned up.\n    if (!jqLiteAcceptsData(element)) {\n      return;\n    }\n\n    var expandoStore = jqLiteExpandoStore(element, true);\n    var events = expandoStore.events;\n    var handle = expandoStore.handle;\n\n    if (!handle) {\n      handle = expandoStore.handle = createEventHandler(element, events);\n    }\n\n    // http://jsperf.com/string-indexof-vs-split\n    var types = type.indexOf(' ') >= 0 ? type.split(' ') : [type];\n    var i = types.length;\n\n    while (i--) {\n      type = types[i];\n      var eventFns = events[type];\n\n      if (!eventFns) {\n        events[type] = [];\n\n        if (type === 'mouseenter' || type === 'mouseleave') {\n          // Refer to jQuery's implementation of mouseenter & mouseleave\n          // Read about mouseenter and mouseleave:\n          // http://www.quirksmode.org/js/events_mouse.html#link8\n\n          jqLiteOn(element, MOUSE_EVENT_MAP[type], function(event) {\n            var target = this, related = event.relatedTarget;\n            // For mousenter/leave call the handler if related is outside the target.\n            // NB: No relatedTarget if the mouse left/entered the browser window\n            if (!related || (related !== target && !target.contains(related))) {\n              handle(event, type);\n            }\n          });\n\n        } else {\n          if (type !== '$destroy') {\n            addEventListenerFn(element, type, handle);\n          }\n        }\n        eventFns = events[type];\n      }\n      eventFns.push(fn);\n    }\n  },\n\n  off: jqLiteOff,\n\n  one: function(element, type, fn) {\n    element = jqLite(element);\n\n    //add the listener twice so that when it is called\n    //you can remove the original function and still be\n    //able to call element.off(ev, fn) normally\n    element.on(type, function onFn() {\n      element.off(type, fn);\n      element.off(type, onFn);\n    });\n    element.on(type, fn);\n  },\n\n  replaceWith: function(element, replaceNode) {\n    var index, parent = element.parentNode;\n    jqLiteDealoc(element);\n    forEach(new JQLite(replaceNode), function(node) {\n      if (index) {\n        parent.insertBefore(node, index.nextSibling);\n      } else {\n        parent.replaceChild(node, element);\n      }\n      index = node;\n    });\n  },\n\n  children: function(element) {\n    var children = [];\n    forEach(element.childNodes, function(element) {\n      if (element.nodeType === NODE_TYPE_ELEMENT)\n        children.push(element);\n    });\n    return children;\n  },\n\n  contents: function(element) {\n    return element.contentDocument || element.childNodes || [];\n  },\n\n  append: function(element, node) {\n    var nodeType = element.nodeType;\n    if (nodeType !== NODE_TYPE_ELEMENT && nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT) return;\n\n    node = new JQLite(node);\n\n    for (var i = 0, ii = node.length; i < ii; i++) {\n      var child = node[i];\n      element.appendChild(child);\n    }\n  },\n\n  prepend: function(element, node) {\n    if (element.nodeType === NODE_TYPE_ELEMENT) {\n      var index = element.firstChild;\n      forEach(new JQLite(node), function(child) {\n        element.insertBefore(child, index);\n      });\n    }\n  },\n\n  wrap: function(element, wrapNode) {\n    wrapNode = jqLite(wrapNode).eq(0).clone()[0];\n    var parent = element.parentNode;\n    if (parent) {\n      parent.replaceChild(wrapNode, element);\n    }\n    wrapNode.appendChild(element);\n  },\n\n  remove: jqLiteRemove,\n\n  detach: function(element) {\n    jqLiteRemove(element, true);\n  },\n\n  after: function(element, newElement) {\n    var index = element, parent = element.parentNode;\n    newElement = new JQLite(newElement);\n\n    for (var i = 0, ii = newElement.length; i < ii; i++) {\n      var node = newElement[i];\n      parent.insertBefore(node, index.nextSibling);\n      index = node;\n    }\n  },\n\n  addClass: jqLiteAddClass,\n  removeClass: jqLiteRemoveClass,\n\n  toggleClass: function(element, selector, condition) {\n    if (selector) {\n      forEach(selector.split(' '), function(className) {\n        var classCondition = condition;\n        if (isUndefined(classCondition)) {\n          classCondition = !jqLiteHasClass(element, className);\n        }\n        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);\n      });\n    }\n  },\n\n  parent: function(element) {\n    var parent = element.parentNode;\n    return parent && parent.nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT ? parent : null;\n  },\n\n  next: function(element) {\n    return element.nextElementSibling;\n  },\n\n  find: function(element, selector) {\n    if (element.getElementsByTagName) {\n      return element.getElementsByTagName(selector);\n    } else {\n      return [];\n    }\n  },\n\n  clone: jqLiteClone,\n\n  triggerHandler: function(element, event, extraParameters) {\n\n    var dummyEvent, eventFnsCopy, handlerArgs;\n    var eventName = event.type || event;\n    var expandoStore = jqLiteExpandoStore(element);\n    var events = expandoStore && expandoStore.events;\n    var eventFns = events && events[eventName];\n\n    if (eventFns) {\n      // Create a dummy event to pass to the handlers\n      dummyEvent = {\n        preventDefault: function() { this.defaultPrevented = true; },\n        isDefaultPrevented: function() { return this.defaultPrevented === true; },\n        stopImmediatePropagation: function() { this.immediatePropagationStopped = true; },\n        isImmediatePropagationStopped: function() { return this.immediatePropagationStopped === true; },\n        stopPropagation: noop,\n        type: eventName,\n        target: element\n      };\n\n      // If a custom event was provided then extend our dummy event with it\n      if (event.type) {\n        dummyEvent = extend(dummyEvent, event);\n      }\n\n      // Copy event handlers in case event handlers array is modified during execution.\n      eventFnsCopy = shallowCopy(eventFns);\n      handlerArgs = extraParameters ? [dummyEvent].concat(extraParameters) : [dummyEvent];\n\n      forEach(eventFnsCopy, function(fn) {\n        if (!dummyEvent.isImmediatePropagationStopped()) {\n          fn.apply(element, handlerArgs);\n        }\n      });\n    }\n  }\n}, function(fn, name) {\n  /**\n   * chaining functions\n   */\n  JQLite.prototype[name] = function(arg1, arg2, arg3) {\n    var value;\n\n    for (var i = 0, ii = this.length; i < ii; i++) {\n      if (isUndefined(value)) {\n        value = fn(this[i], arg1, arg2, arg3);\n        if (isDefined(value)) {\n          // any function which returns a value needs to be wrapped\n          value = jqLite(value);\n        }\n      } else {\n        jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));\n      }\n    }\n    return isDefined(value) ? value : this;\n  };\n\n  // bind legacy bind/unbind to on/off\n  JQLite.prototype.bind = JQLite.prototype.on;\n  JQLite.prototype.unbind = JQLite.prototype.off;\n});\n\n\n// Provider for private $$jqLite service\nfunction $$jqLiteProvider() {\n  this.$get = function $$jqLite() {\n    return extend(JQLite, {\n      hasClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteHasClass(node, classes);\n      },\n      addClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteAddClass(node, classes);\n      },\n      removeClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteRemoveClass(node, classes);\n      }\n    });\n  };\n}\n\n/**\n * Computes a hash of an 'obj'.\n * Hash of a:\n *  string is string\n *  number is number as string\n *  object is either result of calling $$hashKey function on the object or uniquely generated id,\n *         that is also assigned to the $$hashKey property of the object.\n *\n * @param obj\n * @returns {string} hash string such that the same input will have the same hash string.\n *         The resulting string key is in 'type:hashKey' format.\n */\nfunction hashKey(obj, nextUidFn) {\n  var key = obj && obj.$$hashKey;\n\n  if (key) {\n    if (typeof key === 'function') {\n      key = obj.$$hashKey();\n    }\n    return key;\n  }\n\n  var objType = typeof obj;\n  if (objType == 'function' || (objType == 'object' && obj !== null)) {\n    key = obj.$$hashKey = objType + ':' + (nextUidFn || nextUid)();\n  } else {\n    key = objType + ':' + obj;\n  }\n\n  return key;\n}\n\n/**\n * HashMap which can use objects as keys\n */\nfunction HashMap(array, isolatedUid) {\n  if (isolatedUid) {\n    var uid = 0;\n    this.nextUid = function() {\n      return ++uid;\n    };\n  }\n  forEach(array, this.put, this);\n}\nHashMap.prototype = {\n  /**\n   * Store key value pair\n   * @param key key to store can be any type\n   * @param value value to store can be any type\n   */\n  put: function(key, value) {\n    this[hashKey(key, this.nextUid)] = value;\n  },\n\n  /**\n   * @param key\n   * @returns {Object} the value for the key\n   */\n  get: function(key) {\n    return this[hashKey(key, this.nextUid)];\n  },\n\n  /**\n   * Remove the key/value pair\n   * @param key\n   */\n  remove: function(key) {\n    var value = this[key = hashKey(key, this.nextUid)];\n    delete this[key];\n    return value;\n  }\n};\n\n/**\n * @ngdoc function\n * @module ng\n * @name angular.injector\n * @kind function\n *\n * @description\n * Creates an injector object that can be used for retrieving services as well as for\n * dependency injection (see {@link guide/di dependency injection}).\n *\n * @param {Array.<string|Function>} modules A list of module functions or their aliases. See\n *     {@link angular.module}. The `ng` module must be explicitly added.\n * @param {boolean=} [strictDi=false] Whether the injector should be in strict mode, which\n *     disallows argument name annotation inference.\n * @returns {injector} Injector object. See {@link auto.$injector $injector}.\n *\n * @example\n * Typical usage\n * ```js\n *   // create an injector\n *   var $injector = angular.injector(['ng']);\n *\n *   // use the injector to kick off your application\n *   // use the type inference to auto inject arguments, or use implicit injection\n *   $injector.invoke(function($rootScope, $compile, $document) {\n *     $compile($document)($rootScope);\n *     $rootScope.$digest();\n *   });\n * ```\n *\n * Sometimes you want to get access to the injector of a currently running Angular app\n * from outside Angular. Perhaps, you want to inject and compile some markup after the\n * application has been bootstrapped. You can do this using the extra `injector()` added\n * to JQuery/jqLite elements. See {@link angular.element}.\n *\n * *This is fairly rare but could be the case if a third party library is injecting the\n * markup.*\n *\n * In the following example a new block of HTML containing a `ng-controller`\n * directive is added to the end of the document body by JQuery. We then compile and link\n * it into the current AngularJS scope.\n *\n * ```js\n * var $div = $('<div ng-controller=\"MyCtrl\">{{content.label}}</div>');\n * $(document.body).append($div);\n *\n * angular.element(document).injector().invoke(function($compile) {\n *   var scope = angular.element($div).scope();\n *   $compile($div)(scope);\n * });\n * ```\n */\n\n\n/**\n * @ngdoc module\n * @name auto\n * @description\n *\n * Implicit module which gets automatically added to each {@link auto.$injector $injector}.\n */\n\nvar FN_ARGS = /^function\\s*[^\\(]*\\(\\s*([^\\)]*)\\)/m;\nvar FN_ARG_SPLIT = /,/;\nvar FN_ARG = /^\\s*(_?)(\\S+?)\\1\\s*$/;\nvar STRIP_COMMENTS = /((\\/\\/.*$)|(\\/\\*[\\s\\S]*?\\*\\/))/mg;\nvar $injectorMinErr = minErr('$injector');\n\nfunction anonFn(fn) {\n  // For anonymous functions, showing at the very least the function signature can help in\n  // debugging.\n  var fnText = fn.toString().replace(STRIP_COMMENTS, ''),\n      args = fnText.match(FN_ARGS);\n  if (args) {\n    return 'function(' + (args[1] || '').replace(/[\\s\\r\\n]+/, ' ') + ')';\n  }\n  return 'fn';\n}\n\nfunction annotate(fn, strictDi, name) {\n  var $inject,\n      fnText,\n      argDecl,\n      last;\n\n  if (typeof fn === 'function') {\n    if (!($inject = fn.$inject)) {\n      $inject = [];\n      if (fn.length) {\n        if (strictDi) {\n          if (!isString(name) || !name) {\n            name = fn.name || anonFn(fn);\n          }\n          throw $injectorMinErr('strictdi',\n            '{0} is not using explicit annotation and cannot be invoked in strict mode', name);\n        }\n        fnText = fn.toString().replace(STRIP_COMMENTS, '');\n        argDecl = fnText.match(FN_ARGS);\n        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg) {\n          arg.replace(FN_ARG, function(all, underscore, name) {\n            $inject.push(name);\n          });\n        });\n      }\n      fn.$inject = $inject;\n    }\n  } else if (isArray(fn)) {\n    last = fn.length - 1;\n    assertArgFn(fn[last], 'fn');\n    $inject = fn.slice(0, last);\n  } else {\n    assertArgFn(fn, 'fn', true);\n  }\n  return $inject;\n}\n\n///////////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $injector\n *\n * @description\n *\n * `$injector` is used to retrieve object instances as defined by\n * {@link auto.$provide provider}, instantiate types, invoke methods,\n * and load modules.\n *\n * The following always holds true:\n *\n * ```js\n *   var $injector = angular.injector();\n *   expect($injector.get('$injector')).toBe($injector);\n *   expect($injector.invoke(function($injector) {\n *     return $injector;\n *   })).toBe($injector);\n * ```\n *\n * # Injection Function Annotation\n *\n * JavaScript does not have annotations, and annotations are needed for dependency injection. The\n * following are all valid ways of annotating function with injection arguments and are equivalent.\n *\n * ```js\n *   // inferred (only works if code not minified/obfuscated)\n *   $injector.invoke(function(serviceA){});\n *\n *   // annotated\n *   function explicit(serviceA) {};\n *   explicit.$inject = ['serviceA'];\n *   $injector.invoke(explicit);\n *\n *   // inline\n *   $injector.invoke(['serviceA', function(serviceA){}]);\n * ```\n *\n * ## Inference\n *\n * In JavaScript calling `toString()` on a function returns the function definition. The definition\n * can then be parsed and the function arguments can be extracted. This method of discovering\n * annotations is disallowed when the injector is in strict mode.\n * *NOTE:* This does not work with minification, and obfuscation tools since these tools change the\n * argument names.\n *\n * ## `$inject` Annotation\n * By adding an `$inject` property onto a function the injection parameters can be specified.\n *\n * ## Inline\n * As an array of injection names, where the last item in the array is the function to call.\n */\n\n/**\n * @ngdoc method\n * @name $injector#get\n *\n * @description\n * Return an instance of the service.\n *\n * @param {string} name The name of the instance to retrieve.\n * @param {string=} caller An optional string to provide the origin of the function call for error messages.\n * @return {*} The instance.\n */\n\n/**\n * @ngdoc method\n * @name $injector#invoke\n *\n * @description\n * Invoke the method and supply the method arguments from the `$injector`.\n *\n * @param {Function|Array.<string|Function>} fn The injectable function to invoke. Function parameters are\n *   injected according to the {@link guide/di $inject Annotation} rules.\n * @param {Object=} self The `this` for the invoked method.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n *                         object first, before the `$injector` is consulted.\n * @returns {*} the value returned by the invoked `fn` function.\n */\n\n/**\n * @ngdoc method\n * @name $injector#has\n *\n * @description\n * Allows the user to query if the particular service exists.\n *\n * @param {string} name Name of the service to query.\n * @returns {boolean} `true` if injector has given service.\n */\n\n/**\n * @ngdoc method\n * @name $injector#instantiate\n * @description\n * Create a new instance of JS type. The method takes a constructor function, invokes the new\n * operator, and supplies all of the arguments to the constructor function as specified by the\n * constructor annotation.\n *\n * @param {Function} Type Annotated constructor function.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n * object first, before the `$injector` is consulted.\n * @returns {Object} new instance of `Type`.\n */\n\n/**\n * @ngdoc method\n * @name $injector#annotate\n *\n * @description\n * Returns an array of service names which the function is requesting for injection. This API is\n * used by the injector to determine which services need to be injected into the function when the\n * function is invoked. There are three ways in which the function can be annotated with the needed\n * dependencies.\n *\n * # Argument names\n *\n * The simplest form is to extract the dependencies from the arguments of the function. This is done\n * by converting the function into a string using `toString()` method and extracting the argument\n * names.\n * ```js\n *   // Given\n *   function MyController($scope, $route) {\n *     // ...\n *   }\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * You can disallow this method by using strict injection mode.\n *\n * This method does not work with code minification / obfuscation. For this reason the following\n * annotation strategies are supported.\n *\n * # The `$inject` property\n *\n * If a function has an `$inject` property and its value is an array of strings, then the strings\n * represent names of services to be injected into the function.\n * ```js\n *   // Given\n *   var MyController = function(obfuscatedScope, obfuscatedRoute) {\n *     // ...\n *   }\n *   // Define function dependencies\n *   MyController['$inject'] = ['$scope', '$route'];\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * # The array notation\n *\n * It is often desirable to inline Injected functions and that's when setting the `$inject` property\n * is very inconvenient. In these situations using the array notation to specify the dependencies in\n * a way that survives minification is a better choice:\n *\n * ```js\n *   // We wish to write this (not minification / obfuscation safe)\n *   injector.invoke(function($compile, $rootScope) {\n *     // ...\n *   });\n *\n *   // We are forced to write break inlining\n *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {\n *     // ...\n *   };\n *   tmpFn.$inject = ['$compile', '$rootScope'];\n *   injector.invoke(tmpFn);\n *\n *   // To better support inline function the inline annotation is supported\n *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {\n *     // ...\n *   }]);\n *\n *   // Therefore\n *   expect(injector.annotate(\n *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])\n *    ).toEqual(['$compile', '$rootScope']);\n * ```\n *\n * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to\n * be retrieved as described above.\n *\n * @param {boolean=} [strictDi=false] Disallow argument name annotation inference.\n *\n * @returns {Array.<string>} The names of the services which the function requires.\n */\n\n\n\n\n/**\n * @ngdoc service\n * @name $provide\n *\n * @description\n *\n * The {@link auto.$provide $provide} service has a number of methods for registering components\n * with the {@link auto.$injector $injector}. Many of these functions are also exposed on\n * {@link angular.Module}.\n *\n * An Angular **service** is a singleton object created by a **service factory**.  These **service\n * factories** are functions which, in turn, are created by a **service provider**.\n * The **service providers** are constructor functions. When instantiated they must contain a\n * property called `$get`, which holds the **service factory** function.\n *\n * When you request a service, the {@link auto.$injector $injector} is responsible for finding the\n * correct **service provider**, instantiating it and then calling its `$get` **service factory**\n * function to get the instance of the **service**.\n *\n * Often services have no configuration options and there is no need to add methods to the service\n * provider.  The provider will be no more than a constructor function with a `$get` property. For\n * these cases the {@link auto.$provide $provide} service has additional helper methods to register\n * services without specifying a provider.\n *\n * * {@link auto.$provide#provider provider(provider)} - registers a **service provider** with the\n *     {@link auto.$injector $injector}\n * * {@link auto.$provide#constant constant(obj)} - registers a value/object that can be accessed by\n *     providers and services.\n * * {@link auto.$provide#value value(obj)} - registers a value/object that can only be accessed by\n *     services, not providers.\n * * {@link auto.$provide#factory factory(fn)} - registers a service **factory function**, `fn`,\n *     that will be wrapped in a **service provider** object, whose `$get` property will contain the\n *     given factory function.\n * * {@link auto.$provide#service service(class)} - registers a **constructor function**, `class`\n *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate\n *      a new object using the given constructor function.\n *\n * See the individual methods for more information and examples.\n */\n\n/**\n * @ngdoc method\n * @name $provide#provider\n * @description\n *\n * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions\n * are constructor functions, whose instances are responsible for \"providing\" a factory for a\n * service.\n *\n * Service provider names start with the name of the service they provide followed by `Provider`.\n * For example, the {@link ng.$log $log} service has a provider called\n * {@link ng.$logProvider $logProvider}.\n *\n * Service provider objects can have additional methods which allow configuration of the provider\n * and its service. Importantly, you can configure what kind of service is created by the `$get`\n * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a\n * method {@link ng.$logProvider#debugEnabled debugEnabled}\n * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the\n * console or not.\n *\n * @param {string} name The name of the instance. NOTE: the provider will be available under `name +\n                        'Provider'` key.\n * @param {(Object|function())} provider If the provider is:\n *\n *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using\n *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.\n *   - `Constructor`: a new instance of the provider will be created using\n *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.\n *\n * @returns {Object} registered provider instance\n\n * @example\n *\n * The following example shows how to create a simple event tracking service and register it using\n * {@link auto.$provide#provider $provide.provider()}.\n *\n * ```js\n *  // Define the eventTracker provider\n *  function EventTrackerProvider() {\n *    var trackingUrl = '/track';\n *\n *    // A provider method for configuring where the tracked events should been saved\n *    this.setTrackingUrl = function(url) {\n *      trackingUrl = url;\n *    };\n *\n *    // The service factory function\n *    this.$get = ['$http', function($http) {\n *      var trackedEvents = {};\n *      return {\n *        // Call this to track an event\n *        event: function(event) {\n *          var count = trackedEvents[event] || 0;\n *          count += 1;\n *          trackedEvents[event] = count;\n *          return count;\n *        },\n *        // Call this to save the tracked events to the trackingUrl\n *        save: function() {\n *          $http.post(trackingUrl, trackedEvents);\n *        }\n *      };\n *    }];\n *  }\n *\n *  describe('eventTracker', function() {\n *    var postSpy;\n *\n *    beforeEach(module(function($provide) {\n *      // Register the eventTracker provider\n *      $provide.provider('eventTracker', EventTrackerProvider);\n *    }));\n *\n *    beforeEach(module(function(eventTrackerProvider) {\n *      // Configure eventTracker provider\n *      eventTrackerProvider.setTrackingUrl('/custom-track');\n *    }));\n *\n *    it('tracks events', inject(function(eventTracker) {\n *      expect(eventTracker.event('login')).toEqual(1);\n *      expect(eventTracker.event('login')).toEqual(2);\n *    }));\n *\n *    it('saves to the tracking url', inject(function(eventTracker, $http) {\n *      postSpy = spyOn($http, 'post');\n *      eventTracker.event('login');\n *      eventTracker.save();\n *      expect(postSpy).toHaveBeenCalled();\n *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');\n *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');\n *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });\n *    }));\n *  });\n * ```\n */\n\n/**\n * @ngdoc method\n * @name $provide#factory\n * @description\n *\n * Register a **service factory**, which will be called to return the service instance.\n * This is short for registering a service where its provider consists of only a `$get` property,\n * which is the given service factory function.\n * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to\n * configure your service in a provider.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} $getFn The injectable $getFn for the instance creation.\n *                      Internally this is a short hand for `$provide.provider(name, {$get: $getFn})`.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service\n * ```js\n *   $provide.factory('ping', ['$http', function($http) {\n *     return function ping() {\n *       return $http.send('/ping');\n *     };\n *   }]);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#service\n * @description\n *\n * Register a **service constructor**, which will be invoked with `new` to create the service\n * instance.\n * This is short for registering a service where its provider's `$get` property is the service\n * constructor function that will be used to instantiate the service instance.\n *\n * You should use {@link auto.$provide#service $provide.service(class)} if you define your service\n * as a type/class.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} constructor An injectable class (constructor function)\n *     that will be instantiated.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service using\n * {@link auto.$provide#service $provide.service(class)}.\n * ```js\n *   var Ping = function($http) {\n *     this.$http = $http;\n *   };\n *\n *   Ping.$inject = ['$http'];\n *\n *   Ping.prototype.send = function() {\n *     return this.$http.get('/ping');\n *   };\n *   $provide.service('ping', Ping);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping.send();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#value\n * @description\n *\n * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a\n * number, an array, an object or a function.  This is short for registering a service where its\n * provider's `$get` property is a factory function that takes no arguments and returns the **value\n * service**.\n *\n * Value services are similar to constant services, except that they cannot be injected into a\n * module configuration function (see {@link angular.Module#config}) but they can be overridden by\n * an Angular\n * {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the instance.\n * @param {*} value The value.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here are some examples of creating value services.\n * ```js\n *   $provide.value('ADMIN_USER', 'admin');\n *\n *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });\n *\n *   $provide.value('halfOf', function(value) {\n *     return value / 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#constant\n * @description\n *\n * Register a **constant service**, such as a string, a number, an array, an object or a function,\n * with the {@link auto.$injector $injector}. Unlike {@link auto.$provide#value value} it can be\n * injected into a module configuration function (see {@link angular.Module#config}) and it cannot\n * be overridden by an Angular {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the constant.\n * @param {*} value The constant value.\n * @returns {Object} registered instance\n *\n * @example\n * Here a some examples of creating constants:\n * ```js\n *   $provide.constant('SHARD_HEIGHT', 306);\n *\n *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);\n *\n *   $provide.constant('double', function(value) {\n *     return value * 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#decorator\n * @description\n *\n * Register a **service decorator** with the {@link auto.$injector $injector}. A service decorator\n * intercepts the creation of a service, allowing it to override or modify the behaviour of the\n * service. The object returned by the decorator may be the original service, or a new service\n * object which replaces or wraps and delegates to the original service.\n *\n * @param {string} name The name of the service to decorate.\n * @param {Function|Array.<string|Function>} decorator This function will be invoked when the service needs to be\n *    instantiated and should return the decorated service instance. The function is called using\n *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.\n *    Local injection arguments:\n *\n *    * `$delegate` - The original service instance, which can be monkey patched, configured,\n *      decorated or delegated to.\n *\n * @example\n * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting\n * calls to {@link ng.$log#error $log.warn()}.\n * ```js\n *   $provide.decorator('$log', ['$delegate', function($delegate) {\n *     $delegate.warn = $delegate.error;\n *     return $delegate;\n *   }]);\n * ```\n */\n\n\nfunction createInjector(modulesToLoad, strictDi) {\n  strictDi = (strictDi === true);\n  var INSTANTIATING = {},\n      providerSuffix = 'Provider',\n      path = [],\n      loadedModules = new HashMap([], true),\n      providerCache = {\n        $provide: {\n            provider: supportObject(provider),\n            factory: supportObject(factory),\n            service: supportObject(service),\n            value: supportObject(value),\n            constant: supportObject(constant),\n            decorator: decorator\n          }\n      },\n      providerInjector = (providerCache.$injector =\n          createInternalInjector(providerCache, function(serviceName, caller) {\n            if (angular.isString(caller)) {\n              path.push(caller);\n            }\n            throw $injectorMinErr('unpr', \"Unknown provider: {0}\", path.join(' <- '));\n          })),\n      instanceCache = {},\n      instanceInjector = (instanceCache.$injector =\n          createInternalInjector(instanceCache, function(serviceName, caller) {\n            var provider = providerInjector.get(serviceName + providerSuffix, caller);\n            return instanceInjector.invoke(provider.$get, provider, undefined, serviceName);\n          }));\n\n\n  forEach(loadModules(modulesToLoad), function(fn) { instanceInjector.invoke(fn || noop); });\n\n  return instanceInjector;\n\n  ////////////////////////////////////\n  // $provider\n  ////////////////////////////////////\n\n  function supportObject(delegate) {\n    return function(key, value) {\n      if (isObject(key)) {\n        forEach(key, reverseParams(delegate));\n      } else {\n        return delegate(key, value);\n      }\n    };\n  }\n\n  function provider(name, provider_) {\n    assertNotHasOwnProperty(name, 'service');\n    if (isFunction(provider_) || isArray(provider_)) {\n      provider_ = providerInjector.instantiate(provider_);\n    }\n    if (!provider_.$get) {\n      throw $injectorMinErr('pget', \"Provider '{0}' must define $get factory method.\", name);\n    }\n    return providerCache[name + providerSuffix] = provider_;\n  }\n\n  function enforceReturnValue(name, factory) {\n    return function enforcedReturnValue() {\n      var result = instanceInjector.invoke(factory, this);\n      if (isUndefined(result)) {\n        throw $injectorMinErr('undef', \"Provider '{0}' must return a value from $get factory method.\", name);\n      }\n      return result;\n    };\n  }\n\n  function factory(name, factoryFn, enforce) {\n    return provider(name, {\n      $get: enforce !== false ? enforceReturnValue(name, factoryFn) : factoryFn\n    });\n  }\n\n  function service(name, constructor) {\n    return factory(name, ['$injector', function($injector) {\n      return $injector.instantiate(constructor);\n    }]);\n  }\n\n  function value(name, val) { return factory(name, valueFn(val), false); }\n\n  function constant(name, value) {\n    assertNotHasOwnProperty(name, 'constant');\n    providerCache[name] = value;\n    instanceCache[name] = value;\n  }\n\n  function decorator(serviceName, decorFn) {\n    var origProvider = providerInjector.get(serviceName + providerSuffix),\n        orig$get = origProvider.$get;\n\n    origProvider.$get = function() {\n      var origInstance = instanceInjector.invoke(orig$get, origProvider);\n      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});\n    };\n  }\n\n  ////////////////////////////////////\n  // Module Loading\n  ////////////////////////////////////\n  function loadModules(modulesToLoad) {\n    var runBlocks = [], moduleFn;\n    forEach(modulesToLoad, function(module) {\n      if (loadedModules.get(module)) return;\n      loadedModules.put(module, true);\n\n      function runInvokeQueue(queue) {\n        var i, ii;\n        for (i = 0, ii = queue.length; i < ii; i++) {\n          var invokeArgs = queue[i],\n              provider = providerInjector.get(invokeArgs[0]);\n\n          provider[invokeArgs[1]].apply(provider, invokeArgs[2]);\n        }\n      }\n\n      try {\n        if (isString(module)) {\n          moduleFn = angularModule(module);\n          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);\n          runInvokeQueue(moduleFn._invokeQueue);\n          runInvokeQueue(moduleFn._configBlocks);\n        } else if (isFunction(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else if (isArray(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else {\n          assertArgFn(module, 'module');\n        }\n      } catch (e) {\n        if (isArray(module)) {\n          module = module[module.length - 1];\n        }\n        if (e.message && e.stack && e.stack.indexOf(e.message) == -1) {\n          // Safari & FF's stack traces don't contain error.message content\n          // unlike those of Chrome and IE\n          // So if stack doesn't contain message, we create a new string that contains both.\n          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.\n          /* jshint -W022 */\n          e = e.message + '\\n' + e.stack;\n        }\n        throw $injectorMinErr('modulerr', \"Failed to instantiate module {0} due to:\\n{1}\",\n                  module, e.stack || e.message || e);\n      }\n    });\n    return runBlocks;\n  }\n\n  ////////////////////////////////////\n  // internal Injector\n  ////////////////////////////////////\n\n  function createInternalInjector(cache, factory) {\n\n    function getService(serviceName, caller) {\n      if (cache.hasOwnProperty(serviceName)) {\n        if (cache[serviceName] === INSTANTIATING) {\n          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',\n                    serviceName + ' <- ' + path.join(' <- '));\n        }\n        return cache[serviceName];\n      } else {\n        try {\n          path.unshift(serviceName);\n          cache[serviceName] = INSTANTIATING;\n          return cache[serviceName] = factory(serviceName, caller);\n        } catch (err) {\n          if (cache[serviceName] === INSTANTIATING) {\n            delete cache[serviceName];\n          }\n          throw err;\n        } finally {\n          path.shift();\n        }\n      }\n    }\n\n    function invoke(fn, self, locals, serviceName) {\n      if (typeof locals === 'string') {\n        serviceName = locals;\n        locals = null;\n      }\n\n      var args = [],\n          $inject = createInjector.$$annotate(fn, strictDi, serviceName),\n          length, i,\n          key;\n\n      for (i = 0, length = $inject.length; i < length; i++) {\n        key = $inject[i];\n        if (typeof key !== 'string') {\n          throw $injectorMinErr('itkn',\n                  'Incorrect injection token! Expected service name as string, got {0}', key);\n        }\n        args.push(\n          locals && locals.hasOwnProperty(key)\n          ? locals[key]\n          : getService(key, serviceName)\n        );\n      }\n      if (isArray(fn)) {\n        fn = fn[length];\n      }\n\n      // http://jsperf.com/angularjs-invoke-apply-vs-switch\n      // #5388\n      return fn.apply(self, args);\n    }\n\n    function instantiate(Type, locals, serviceName) {\n      // Check if Type is annotated and use just the given function at n-1 as parameter\n      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);\n      // Object creation: http://jsperf.com/create-constructor/2\n      var instance = Object.create((isArray(Type) ? Type[Type.length - 1] : Type).prototype || null);\n      var returnedValue = invoke(Type, instance, locals, serviceName);\n\n      return isObject(returnedValue) || isFunction(returnedValue) ? returnedValue : instance;\n    }\n\n    return {\n      invoke: invoke,\n      instantiate: instantiate,\n      get: getService,\n      annotate: createInjector.$$annotate,\n      has: function(name) {\n        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);\n      }\n    };\n  }\n}\n\ncreateInjector.$$annotate = annotate;\n\n/**\n * @ngdoc provider\n * @name $anchorScrollProvider\n *\n * @description\n * Use `$anchorScrollProvider` to disable automatic scrolling whenever\n * {@link ng.$location#hash $location.hash()} changes.\n */\nfunction $AnchorScrollProvider() {\n\n  var autoScrollingEnabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $anchorScrollProvider#disableAutoScrolling\n   *\n   * @description\n   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to\n   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />\n   * Use this method to disable automatic scrolling.\n   *\n   * If automatic scrolling is disabled, one must explicitly call\n   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the\n   * current hash.\n   */\n  this.disableAutoScrolling = function() {\n    autoScrollingEnabled = false;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $anchorScroll\n   * @kind function\n   * @requires $window\n   * @requires $location\n   * @requires $rootScope\n   *\n   * @description\n   * When called, it checks the current value of {@link ng.$location#hash $location.hash()} and\n   * scrolls to the related element, according to the rules specified in the\n   * [Html5 spec](http://dev.w3.org/html5/spec/Overview.html#the-indicated-part-of-the-document).\n   *\n   * It also watches the {@link ng.$location#hash $location.hash()} and automatically scrolls to\n   * match any anchor whenever it changes. This can be disabled by calling\n   * {@link ng.$anchorScrollProvider#disableAutoScrolling $anchorScrollProvider.disableAutoScrolling()}.\n   *\n   * Additionally, you can use its {@link ng.$anchorScroll#yOffset yOffset} property to specify a\n   * vertical scroll-offset (either fixed or dynamic).\n   *\n   * @property {(number|function|jqLite)} yOffset\n   * If set, specifies a vertical scroll-offset. This is often useful when there are fixed\n   * positioned elements at the top of the page, such as navbars, headers etc.\n   *\n   * `yOffset` can be specified in various ways:\n   * - **number**: A fixed number of pixels to be used as offset.<br /><br />\n   * - **function**: A getter function called everytime `$anchorScroll()` is executed. Must return\n   *   a number representing the offset (in pixels).<br /><br />\n   * - **jqLite**: A jqLite/jQuery element to be used for specifying the offset. The distance from\n   *   the top of the page to the element's bottom will be used as offset.<br />\n   *   **Note**: The element will be taken into account only as long as its `position` is set to\n   *   `fixed`. This option is useful, when dealing with responsive navbars/headers that adjust\n   *   their height and/or positioning according to the viewport's size.\n   *\n   * <br />\n   * <div class=\"alert alert-warning\">\n   * In order for `yOffset` to work properly, scrolling should take place on the document's root and\n   * not some child element.\n   * </div>\n   *\n   * @example\n     <example module=\"anchorScrollExample\">\n       <file name=\"index.html\">\n         <div id=\"scrollArea\" ng-controller=\"ScrollController\">\n           <a ng-click=\"gotoBottom()\">Go to bottom</a>\n           <a id=\"bottom\"></a> You're at the bottom!\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollExample', [])\n           .controller('ScrollController', ['$scope', '$location', '$anchorScroll',\n             function ($scope, $location, $anchorScroll) {\n               $scope.gotoBottom = function() {\n                 // set the location.hash to the id of\n                 // the element you wish to scroll to.\n                 $location.hash('bottom');\n\n                 // call $anchorScroll()\n                 $anchorScroll();\n               };\n             }]);\n       </file>\n       <file name=\"style.css\">\n         #scrollArea {\n           height: 280px;\n           overflow: auto;\n         }\n\n         #bottom {\n           display: block;\n           margin-top: 2000px;\n         }\n       </file>\n     </example>\n   *\n   * <hr />\n   * The example below illustrates the use of a vertical scroll-offset (specified as a fixed value).\n   * See {@link ng.$anchorScroll#yOffset $anchorScroll.yOffset} for more details.\n   *\n   * @example\n     <example module=\"anchorScrollOffsetExample\">\n       <file name=\"index.html\">\n         <div class=\"fixed-header\" ng-controller=\"headerCtrl\">\n           <a href=\"\" ng-click=\"gotoAnchor(x)\" ng-repeat=\"x in [1,2,3,4,5]\">\n             Go to anchor {{x}}\n           </a>\n         </div>\n         <div id=\"anchor{{x}}\" class=\"anchor\" ng-repeat=\"x in [1,2,3,4,5]\">\n           Anchor {{x}} of 5\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollOffsetExample', [])\n           .run(['$anchorScroll', function($anchorScroll) {\n             $anchorScroll.yOffset = 50;   // always scroll by 50 extra pixels\n           }])\n           .controller('headerCtrl', ['$anchorScroll', '$location', '$scope',\n             function ($anchorScroll, $location, $scope) {\n               $scope.gotoAnchor = function(x) {\n                 var newHash = 'anchor' + x;\n                 if ($location.hash() !== newHash) {\n                   // set the $location.hash to `newHash` and\n                   // $anchorScroll will automatically scroll to it\n                   $location.hash('anchor' + x);\n                 } else {\n                   // call $anchorScroll() explicitly,\n                   // since $location.hash hasn't changed\n                   $anchorScroll();\n                 }\n               };\n             }\n           ]);\n       </file>\n       <file name=\"style.css\">\n         body {\n           padding-top: 50px;\n         }\n\n         .anchor {\n           border: 2px dashed DarkOrchid;\n           padding: 10px 10px 200px 10px;\n         }\n\n         .fixed-header {\n           background-color: rgba(0, 0, 0, 0.2);\n           height: 50px;\n           position: fixed;\n           top: 0; left: 0; right: 0;\n         }\n\n         .fixed-header > a {\n           display: inline-block;\n           margin: 5px 15px;\n         }\n       </file>\n     </example>\n   */\n  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {\n    var document = $window.document;\n\n    // Helper function to get first anchor from a NodeList\n    // (using `Array#some()` instead of `angular#forEach()` since it's more performant\n    //  and working in all supported browsers.)\n    function getFirstAnchor(list) {\n      var result = null;\n      Array.prototype.some.call(list, function(element) {\n        if (nodeName_(element) === 'a') {\n          result = element;\n          return true;\n        }\n      });\n      return result;\n    }\n\n    function getYOffset() {\n\n      var offset = scroll.yOffset;\n\n      if (isFunction(offset)) {\n        offset = offset();\n      } else if (isElement(offset)) {\n        var elem = offset[0];\n        var style = $window.getComputedStyle(elem);\n        if (style.position !== 'fixed') {\n          offset = 0;\n        } else {\n          offset = elem.getBoundingClientRect().bottom;\n        }\n      } else if (!isNumber(offset)) {\n        offset = 0;\n      }\n\n      return offset;\n    }\n\n    function scrollTo(elem) {\n      if (elem) {\n        elem.scrollIntoView();\n\n        var offset = getYOffset();\n\n        if (offset) {\n          // `offset` is the number of pixels we should scroll UP in order to align `elem` properly.\n          // This is true ONLY if the call to `elem.scrollIntoView()` initially aligns `elem` at the\n          // top of the viewport.\n          //\n          // IF the number of pixels from the top of `elem` to the end of the page's content is less\n          // than the height of the viewport, then `elem.scrollIntoView()` will align the `elem` some\n          // way down the page.\n          //\n          // This is often the case for elements near the bottom of the page.\n          //\n          // In such cases we do not need to scroll the whole `offset` up, just the difference between\n          // the top of the element and the offset, which is enough to align the top of `elem` at the\n          // desired position.\n          var elemTop = elem.getBoundingClientRect().top;\n          $window.scrollBy(0, elemTop - offset);\n        }\n      } else {\n        $window.scrollTo(0, 0);\n      }\n    }\n\n    function scroll() {\n      var hash = $location.hash(), elm;\n\n      // empty hash, scroll to the top of the page\n      if (!hash) scrollTo(null);\n\n      // element with given id\n      else if ((elm = document.getElementById(hash))) scrollTo(elm);\n\n      // first anchor with given name :-D\n      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) scrollTo(elm);\n\n      // no element and hash == 'top', scroll to the top of the page\n      else if (hash === 'top') scrollTo(null);\n    }\n\n    // does not scroll when user clicks on anchor link that is currently on\n    // (no url change, no $location.hash() change), browser native does scroll\n    if (autoScrollingEnabled) {\n      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},\n        function autoScrollWatchAction(newVal, oldVal) {\n          // skip the initial scroll if $location.hash is empty\n          if (newVal === oldVal && newVal === '') return;\n\n          jqLiteDocumentLoaded(function() {\n            $rootScope.$evalAsync(scroll);\n          });\n        });\n    }\n\n    return scroll;\n  }];\n}\n\nvar $animateMinErr = minErr('$animate');\n\n/**\n * @ngdoc provider\n * @name $animateProvider\n *\n * @description\n * Default implementation of $animate that doesn't perform any animations, instead just\n * synchronously performs DOM\n * updates and calls done() callbacks.\n *\n * In order to enable animations the ngAnimate module has to be loaded.\n *\n * To see the functional implementation check out src/ngAnimate/animate.js\n */\nvar $AnimateProvider = ['$provide', function($provide) {\n\n\n  this.$$selectors = {};\n\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#register\n   *\n   * @description\n   * Registers a new injectable animation factory function. The factory function produces the\n   * animation object which contains callback functions for each event that is expected to be\n   * animated.\n   *\n   *   * `eventFn`: `function(Element, doneFunction)` The element to animate, the `doneFunction`\n   *   must be called once the element animation is complete. If a function is returned then the\n   *   animation service will use this function to cancel the animation whenever a cancel event is\n   *   triggered.\n   *\n   *\n   * ```js\n   *   return {\n     *     eventFn : function(element, done) {\n     *       //code to run the animation\n     *       //once complete, then run done()\n     *       return function cancellationFunction() {\n     *         //code to cancel the animation\n     *       }\n     *     }\n     *   }\n   * ```\n   *\n   * @param {string} name The name of the animation.\n   * @param {Function} factory The factory function that will be executed to return the animation\n   *                           object.\n   */\n  this.register = function(name, factory) {\n    var key = name + '-animation';\n    if (name && name.charAt(0) != '.') throw $animateMinErr('notcsel',\n        \"Expecting class selector starting with '.' got '{0}'.\", name);\n    this.$$selectors[name.substr(1)] = key;\n    $provide.factory(key, factory);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#classNameFilter\n   *\n   * @description\n   * Sets and/or returns the CSS class regular expression that is checked when performing\n   * an animation. Upon bootstrap the classNameFilter value is not set at all and will\n   * therefore enable $animate to attempt to perform an animation on any element.\n   * When setting the classNameFilter value, animations will only be performed on elements\n   * that successfully match the filter expression. This in turn can boost performance\n   * for low-powered devices as well as applications containing a lot of structural operations.\n   * @param {RegExp=} expression The className expression which will be checked against all animations\n   * @return {RegExp} The current CSS className expression value. If null then there is no expression value\n   */\n  this.classNameFilter = function(expression) {\n    if (arguments.length === 1) {\n      this.$$classNameFilter = (expression instanceof RegExp) ? expression : null;\n    }\n    return this.$$classNameFilter;\n  };\n\n  this.$get = ['$$q', '$$asyncCallback', '$rootScope', function($$q, $$asyncCallback, $rootScope) {\n\n    var currentDefer;\n\n    function runAnimationPostDigest(fn) {\n      var cancelFn, defer = $$q.defer();\n      defer.promise.$$cancelFn = function ngAnimateMaybeCancel() {\n        cancelFn && cancelFn();\n      };\n\n      $rootScope.$$postDigest(function ngAnimatePostDigest() {\n        cancelFn = fn(function ngAnimateNotifyComplete() {\n          defer.resolve();\n        });\n      });\n\n      return defer.promise;\n    }\n\n    function resolveElementClasses(element, classes) {\n      var toAdd = [], toRemove = [];\n\n      var hasClasses = createMap();\n      forEach((element.attr('class') || '').split(/\\s+/), function(className) {\n        hasClasses[className] = true;\n      });\n\n      forEach(classes, function(status, className) {\n        var hasClass = hasClasses[className];\n\n        // If the most recent class manipulation (via $animate) was to remove the class, and the\n        // element currently has the class, the class is scheduled for removal. Otherwise, if\n        // the most recent class manipulation (via $animate) was to add the class, and the\n        // element does not currently have the class, the class is scheduled to be added.\n        if (status === false && hasClass) {\n          toRemove.push(className);\n        } else if (status === true && !hasClass) {\n          toAdd.push(className);\n        }\n      });\n\n      return (toAdd.length + toRemove.length) > 0 &&\n        [toAdd.length ? toAdd : null, toRemove.length ? toRemove : null];\n    }\n\n    function cachedClassManipulation(cache, classes, op) {\n      for (var i=0, ii = classes.length; i < ii; ++i) {\n        var className = classes[i];\n        cache[className] = op;\n      }\n    }\n\n    function asyncPromise() {\n      // only serve one instance of a promise in order to save CPU cycles\n      if (!currentDefer) {\n        currentDefer = $$q.defer();\n        $$asyncCallback(function() {\n          currentDefer.resolve();\n          currentDefer = null;\n        });\n      }\n      return currentDefer.promise;\n    }\n\n    function applyStyles(element, options) {\n      if (angular.isObject(options)) {\n        var styles = extend(options.from || {}, options.to || {});\n        element.css(styles);\n      }\n    }\n\n    /**\n     *\n     * @ngdoc service\n     * @name $animate\n     * @description The $animate service provides rudimentary DOM manipulation functions to\n     * insert, remove and move elements within the DOM, as well as adding and removing classes.\n     * This service is the core service used by the ngAnimate $animator service which provides\n     * high-level animation hooks for CSS and JavaScript.\n     *\n     * $animate is available in the AngularJS core, however, the ngAnimate module must be included\n     * to enable full out animation support. Otherwise, $animate will only perform simple DOM\n     * manipulation operations.\n     *\n     * To learn more about enabling animation support, click here to visit the {@link ngAnimate\n     * ngAnimate module page} as well as the {@link ngAnimate.$animate ngAnimate $animate service\n     * page}.\n     */\n    return {\n      animate: function(element, from, to) {\n        applyStyles(element, { from: from, to: to });\n        return asyncPromise();\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enter\n       * @kind function\n       * @description Inserts the element into the DOM either after the `after` element or\n       * as the first child within the `parent` element. When the function is called a promise\n       * is returned that will be resolved at a later time.\n       * @param {DOMElement} element the element which will be inserted into the DOM\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (if the after element is not present)\n       * @param {DOMElement} after the sibling element which will append the element\n       *   after itself\n       * @param {object=} options an optional collection of styles that will be applied to the element.\n       * @return {Promise} the animation callback promise\n       */\n      enter: function(element, parent, after, options) {\n        applyStyles(element, options);\n        after ? after.after(element)\n              : parent.prepend(element);\n        return asyncPromise();\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#leave\n       * @kind function\n       * @description Removes the element from the DOM. When the function is called a promise\n       * is returned that will be resolved at a later time.\n       * @param {DOMElement} element the element which will be removed from the DOM\n       * @param {object=} options an optional collection of options that will be applied to the element.\n       * @return {Promise} the animation callback promise\n       */\n      leave: function(element, options) {\n        applyStyles(element, options);\n        element.remove();\n        return asyncPromise();\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#move\n       * @kind function\n       * @description Moves the position of the provided element within the DOM to be placed\n       * either after the `after` element or inside of the `parent` element. When the function\n       * is called a promise is returned that will be resolved at a later time.\n       *\n       * @param {DOMElement} element the element which will be moved around within the\n       *   DOM\n       * @param {DOMElement} parent the parent element where the element will be\n       *   inserted into (if the after element is not present)\n       * @param {DOMElement} after the sibling element where the element will be\n       *   positioned next to\n       * @param {object=} options an optional collection of options that will be applied to the element.\n       * @return {Promise} the animation callback promise\n       */\n      move: function(element, parent, after, options) {\n        // Do not remove element before insert. Removing will cause data associated with the\n        // element to be dropped. Insert will implicitly do the remove.\n        return this.enter(element, parent, after, options);\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#addClass\n       * @kind function\n       * @description Adds the provided className CSS class value to the provided element.\n       * When the function is called a promise is returned that will be resolved at a later time.\n       * @param {DOMElement} element the element which will have the className value\n       *   added to it\n       * @param {string} className the CSS class which will be added to the element\n       * @param {object=} options an optional collection of options that will be applied to the element.\n       * @return {Promise} the animation callback promise\n       */\n      addClass: function(element, className, options) {\n        return this.setClass(element, className, [], options);\n      },\n\n      $$addClassImmediately: function(element, className, options) {\n        element = jqLite(element);\n        className = !isString(className)\n                        ? (isArray(className) ? className.join(' ') : '')\n                        : className;\n        forEach(element, function(element) {\n          jqLiteAddClass(element, className);\n        });\n        applyStyles(element, options);\n        return asyncPromise();\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#removeClass\n       * @kind function\n       * @description Removes the provided className CSS class value from the provided element.\n       * When the function is called a promise is returned that will be resolved at a later time.\n       * @param {DOMElement} element the element which will have the className value\n       *   removed from it\n       * @param {string} className the CSS class which will be removed from the element\n       * @param {object=} options an optional collection of options that will be applied to the element.\n       * @return {Promise} the animation callback promise\n       */\n      removeClass: function(element, className, options) {\n        return this.setClass(element, [], className, options);\n      },\n\n      $$removeClassImmediately: function(element, className, options) {\n        element = jqLite(element);\n        className = !isString(className)\n                        ? (isArray(className) ? className.join(' ') : '')\n                        : className;\n        forEach(element, function(element) {\n          jqLiteRemoveClass(element, className);\n        });\n        applyStyles(element, options);\n        return asyncPromise();\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#setClass\n       * @kind function\n       * @description Adds and/or removes the given CSS classes to and from the element.\n       * When the function is called a promise is returned that will be resolved at a later time.\n       * @param {DOMElement} element the element which will have its CSS classes changed\n       *   removed from it\n       * @param {string} add the CSS classes which will be added to the element\n       * @param {string} remove the CSS class which will be removed from the element\n       * @param {object=} options an optional collection of options that will be applied to the element.\n       * @return {Promise} the animation callback promise\n       */\n      setClass: function(element, add, remove, options) {\n        var self = this;\n        var STORAGE_KEY = '$$animateClasses';\n        var createdCache = false;\n        element = jqLite(element);\n\n        var cache = element.data(STORAGE_KEY);\n        if (!cache) {\n          cache = {\n            classes: {},\n            options: options\n          };\n          createdCache = true;\n        } else if (options && cache.options) {\n          cache.options = angular.extend(cache.options || {}, options);\n        }\n\n        var classes = cache.classes;\n\n        add = isArray(add) ? add : add.split(' ');\n        remove = isArray(remove) ? remove : remove.split(' ');\n        cachedClassManipulation(classes, add, true);\n        cachedClassManipulation(classes, remove, false);\n\n        if (createdCache) {\n          cache.promise = runAnimationPostDigest(function(done) {\n            var cache = element.data(STORAGE_KEY);\n            element.removeData(STORAGE_KEY);\n\n            // in the event that the element is removed before postDigest\n            // is run then the cache will be undefined and there will be\n            // no need anymore to add or remove and of the element classes\n            if (cache) {\n              var classes = resolveElementClasses(element, cache.classes);\n              if (classes) {\n                self.$$setClassImmediately(element, classes[0], classes[1], cache.options);\n              }\n            }\n\n            done();\n          });\n          element.data(STORAGE_KEY, cache);\n        }\n\n        return cache.promise;\n      },\n\n      $$setClassImmediately: function(element, add, remove, options) {\n        add && this.$$addClassImmediately(element, add);\n        remove && this.$$removeClassImmediately(element, remove);\n        applyStyles(element, options);\n        return asyncPromise();\n      },\n\n      enabled: noop,\n      cancel: noop\n    };\n  }];\n}];\n\nfunction $$AsyncCallbackProvider() {\n  this.$get = ['$$rAF', '$timeout', function($$rAF, $timeout) {\n    return $$rAF.supported\n      ? function(fn) { return $$rAF(fn); }\n      : function(fn) {\n        return $timeout(fn, 0, false);\n      };\n  }];\n}\n\n/* global stripHash: true */\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n * @requires $log\n * @description\n * This object has two goals:\n *\n * - hide all the global state in the browser caused by the window object\n * - abstract away all the browser specific features and inconsistencies\n *\n * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`\n * service, which can be used for convenient testing of the application without the interaction with\n * the real browser apis.\n */\n/**\n * @param {object} window The global window object.\n * @param {object} document jQuery wrapped document.\n * @param {object} $log window.console or an object with the same interface.\n * @param {object} $sniffer $sniffer service\n */\nfunction Browser(window, document, $log, $sniffer) {\n  var self = this,\n      rawDocument = document[0],\n      location = window.location,\n      history = window.history,\n      setTimeout = window.setTimeout,\n      clearTimeout = window.clearTimeout,\n      pendingDeferIds = {};\n\n  self.isMock = false;\n\n  var outstandingRequestCount = 0;\n  var outstandingRequestCallbacks = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = completeOutstandingRequest;\n  self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };\n\n  /**\n   * Executes the `fn` function(supports currying) and decrements the `outstandingRequestCallbacks`\n   * counter. If the counter reaches 0, all the `outstandingRequestCallbacks` are executed.\n   */\n  function completeOutstandingRequest(fn) {\n    try {\n      fn.apply(null, sliceArgs(arguments, 1));\n    } finally {\n      outstandingRequestCount--;\n      if (outstandingRequestCount === 0) {\n        while (outstandingRequestCallbacks.length) {\n          try {\n            outstandingRequestCallbacks.pop()();\n          } catch (e) {\n            $log.error(e);\n          }\n        }\n      }\n    }\n  }\n\n  function getHash(url) {\n    var index = url.indexOf('#');\n    return index === -1 ? '' : url.substr(index);\n  }\n\n  /**\n   * @private\n   * Note: this method is used only by scenario runner\n   * TODO(vojta): prefix this method with $$ ?\n   * @param {function()} callback Function that will be called when no outstanding request\n   */\n  self.notifyWhenNoOutstandingRequests = function(callback) {\n    // force browser to execute all pollFns - this is needed so that cookies and other pollers fire\n    // at some deterministic time in respect to the test runner's actions. Leaving things up to the\n    // regular poller would result in flaky tests.\n    forEach(pollFns, function(pollFn) { pollFn(); });\n\n    if (outstandingRequestCount === 0) {\n      callback();\n    } else {\n      outstandingRequestCallbacks.push(callback);\n    }\n  };\n\n  //////////////////////////////////////////////////////////////\n  // Poll Watcher API\n  //////////////////////////////////////////////////////////////\n  var pollFns = [],\n      pollTimeout;\n\n  /**\n   * @name $browser#addPollFn\n   *\n   * @param {function()} fn Poll function to add\n   *\n   * @description\n   * Adds a function to the list of functions that poller periodically executes,\n   * and starts polling if not started yet.\n   *\n   * @returns {function()} the added function\n   */\n  self.addPollFn = function(fn) {\n    if (isUndefined(pollTimeout)) startPoller(100, setTimeout);\n    pollFns.push(fn);\n    return fn;\n  };\n\n  /**\n   * @param {number} interval How often should browser call poll functions (ms)\n   * @param {function()} setTimeout Reference to a real or fake `setTimeout` function.\n   *\n   * @description\n   * Configures the poller to run in the specified intervals, using the specified\n   * setTimeout fn and kicks it off.\n   */\n  function startPoller(interval, setTimeout) {\n    (function check() {\n      forEach(pollFns, function(pollFn) { pollFn(); });\n      pollTimeout = setTimeout(check, interval);\n    })();\n  }\n\n  //////////////////////////////////////////////////////////////\n  // URL API\n  //////////////////////////////////////////////////////////////\n\n  var cachedState, lastHistoryState,\n      lastBrowserUrl = location.href,\n      baseElement = document.find('base'),\n      reloadLocation = null;\n\n  cacheState();\n  lastHistoryState = cachedState;\n\n  /**\n   * @name $browser#url\n   *\n   * @description\n   * GETTER:\n   * Without any argument, this method just returns current value of location.href.\n   *\n   * SETTER:\n   * With at least one argument, this method sets url to new value.\n   * If html5 history api supported, pushState/replaceState is used, otherwise\n   * location.href/location.replace is used.\n   * Returns its own instance to allow chaining\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to change url.\n   *\n   * @param {string} url New url (when used as setter)\n   * @param {boolean=} replace Should new url replace current history record?\n   * @param {object=} state object to use with pushState/replaceState\n   */\n  self.url = function(url, replace, state) {\n    // In modern browsers `history.state` is `null` by default; treating it separately\n    // from `undefined` would cause `$browser.url('/foo')` to change `history.state`\n    // to undefined via `pushState`. Instead, let's change `undefined` to `null` here.\n    if (isUndefined(state)) {\n      state = null;\n    }\n\n    // Android Browser BFCache causes location, history reference to become stale.\n    if (location !== window.location) location = window.location;\n    if (history !== window.history) history = window.history;\n\n    // setter\n    if (url) {\n      var sameState = lastHistoryState === state;\n\n      // Don't change anything if previous and current URLs and states match. This also prevents\n      // IE<10 from getting into redirect loop when in LocationHashbangInHtml5Url mode.\n      // See https://github.com/angular/angular.js/commit/ffb2701\n      if (lastBrowserUrl === url && (!$sniffer.history || sameState)) {\n        return self;\n      }\n      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);\n      lastBrowserUrl = url;\n      lastHistoryState = state;\n      // Don't use history API if only the hash changed\n      // due to a bug in IE10/IE11 which leads\n      // to not firing a `hashchange` nor `popstate` event\n      // in some cases (see #9143).\n      if ($sniffer.history && (!sameBase || !sameState)) {\n        history[replace ? 'replaceState' : 'pushState'](state, '', url);\n        cacheState();\n        // Do the assignment again so that those two variables are referentially identical.\n        lastHistoryState = cachedState;\n      } else {\n        if (!sameBase || reloadLocation) {\n          reloadLocation = url;\n        }\n        if (replace) {\n          location.replace(url);\n        } else if (!sameBase) {\n          location.href = url;\n        } else {\n          location.hash = getHash(url);\n        }\n      }\n      return self;\n    // getter\n    } else {\n      // - reloadLocation is needed as browsers don't allow to read out\n      //   the new location.href if a reload happened.\n      // - the replacement is a workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=407172\n      return reloadLocation || location.href.replace(/%27/g,\"'\");\n    }\n  };\n\n  /**\n   * @name $browser#state\n   *\n   * @description\n   * This method is a getter.\n   *\n   * Return history.state or null if history.state is undefined.\n   *\n   * @returns {object} state\n   */\n  self.state = function() {\n    return cachedState;\n  };\n\n  var urlChangeListeners = [],\n      urlChangeInit = false;\n\n  function cacheStateAndFireUrlChange() {\n    cacheState();\n    fireUrlChange();\n  }\n\n  function getCurrentState() {\n    try {\n      return history.state;\n    } catch (e) {\n      // MSIE can reportedly throw when there is no state (UNCONFIRMED).\n    }\n  }\n\n  // This variable should be used *only* inside the cacheState function.\n  var lastCachedState = null;\n  function cacheState() {\n    // This should be the only place in $browser where `history.state` is read.\n    cachedState = getCurrentState();\n    cachedState = isUndefined(cachedState) ? null : cachedState;\n\n    // Prevent callbacks fo fire twice if both hashchange & popstate were fired.\n    if (equals(cachedState, lastCachedState)) {\n      cachedState = lastCachedState;\n    }\n    lastCachedState = cachedState;\n  }\n\n  function fireUrlChange() {\n    if (lastBrowserUrl === self.url() && lastHistoryState === cachedState) {\n      return;\n    }\n\n    lastBrowserUrl = self.url();\n    lastHistoryState = cachedState;\n    forEach(urlChangeListeners, function(listener) {\n      listener(self.url(), cachedState);\n    });\n  }\n\n  /**\n   * @name $browser#onUrlChange\n   *\n   * @description\n   * Register callback function that will be called, when url changes.\n   *\n   * It's only called when the url is changed from outside of angular:\n   * - user types different url into address bar\n   * - user clicks on history (forward/back) button\n   * - user clicks on a link\n   *\n   * It's not called when url is changed by $browser.url() method\n   *\n   * The listener gets called with new url as parameter.\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to monitor url changes in angular apps.\n   *\n   * @param {function(string)} listener Listener function to be called when url changes.\n   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.\n   */\n  self.onUrlChange = function(callback) {\n    // TODO(vojta): refactor to use node's syntax for events\n    if (!urlChangeInit) {\n      // We listen on both (hashchange/popstate) when available, as some browsers (e.g. Opera)\n      // don't fire popstate when user change the address bar and don't fire hashchange when url\n      // changed by push/replaceState\n\n      // html5 history api - popstate event\n      if ($sniffer.history) jqLite(window).on('popstate', cacheStateAndFireUrlChange);\n      // hashchange event\n      jqLite(window).on('hashchange', cacheStateAndFireUrlChange);\n\n      urlChangeInit = true;\n    }\n\n    urlChangeListeners.push(callback);\n    return callback;\n  };\n\n  /**\n   * Checks whether the url has changed outside of Angular.\n   * Needs to be exported to be able to check for changes that have been done in sync,\n   * as hashchange/popstate events fire in async.\n   */\n  self.$$checkUrlChange = fireUrlChange;\n\n  //////////////////////////////////////////////////////////////\n  // Misc API\n  //////////////////////////////////////////////////////////////\n\n  /**\n   * @name $browser#baseHref\n   *\n   * @description\n   * Returns current <base href>\n   * (always relative - without domain)\n   *\n   * @returns {string} The current base href\n   */\n  self.baseHref = function() {\n    var href = baseElement.attr('href');\n    return href ? href.replace(/^(https?\\:)?\\/\\/[^\\/]*/, '') : '';\n  };\n\n  //////////////////////////////////////////////////////////////\n  // Cookies API\n  //////////////////////////////////////////////////////////////\n  var lastCookies = {};\n  var lastCookieString = '';\n  var cookiePath = self.baseHref();\n\n  function safeDecodeURIComponent(str) {\n    try {\n      return decodeURIComponent(str);\n    } catch (e) {\n      return str;\n    }\n  }\n\n  /**\n   * @name $browser#cookies\n   *\n   * @param {string=} name Cookie name\n   * @param {string=} value Cookie value\n   *\n   * @description\n   * The cookies method provides a 'private' low level access to browser cookies.\n   * It is not meant to be used directly, use the $cookie service instead.\n   *\n   * The return values vary depending on the arguments that the method was called with as follows:\n   *\n   * - cookies() -> hash of all cookies, this is NOT a copy of the internal state, so do not modify\n   *   it\n   * - cookies(name, value) -> set name to value, if value is undefined delete the cookie\n   * - cookies(name) -> the same as (name, undefined) == DELETES (no one calls it right now that\n   *   way)\n   *\n   * @returns {Object} Hash of all cookies (if called without any parameter)\n   */\n  self.cookies = function(name, value) {\n    var cookieLength, cookieArray, cookie, i, index;\n\n    if (name) {\n      if (value === undefined) {\n        rawDocument.cookie = encodeURIComponent(name) + \"=;path=\" + cookiePath +\n                                \";expires=Thu, 01 Jan 1970 00:00:00 GMT\";\n      } else {\n        if (isString(value)) {\n          cookieLength = (rawDocument.cookie = encodeURIComponent(name) + '=' + encodeURIComponent(value) +\n                                ';path=' + cookiePath).length + 1;\n\n          // per http://www.ietf.org/rfc/rfc2109.txt browser must allow at minimum:\n          // - 300 cookies\n          // - 20 cookies per unique domain\n          // - 4096 bytes per cookie\n          if (cookieLength > 4096) {\n            $log.warn(\"Cookie '\" + name +\n              \"' possibly not set or overflowed because it was too large (\" +\n              cookieLength + \" > 4096 bytes)!\");\n          }\n        }\n      }\n    } else {\n      if (rawDocument.cookie !== lastCookieString) {\n        lastCookieString = rawDocument.cookie;\n        cookieArray = lastCookieString.split(\"; \");\n        lastCookies = {};\n\n        for (i = 0; i < cookieArray.length; i++) {\n          cookie = cookieArray[i];\n          index = cookie.indexOf('=');\n          if (index > 0) { //ignore nameless cookies\n            name = safeDecodeURIComponent(cookie.substring(0, index));\n            // the first value that is seen for a cookie is the most\n            // specific one.  values for the same cookie name that\n            // follow are for less specific paths.\n            if (lastCookies[name] === undefined) {\n              lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1));\n            }\n          }\n        }\n      }\n      return lastCookies;\n    }\n  };\n\n\n  /**\n   * @name $browser#defer\n   * @param {function()} fn A function, who's execution should be deferred.\n   * @param {number=} [delay=0] of milliseconds to defer the function execution.\n   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.\n   *\n   * @description\n   * Executes a fn asynchronously via `setTimeout(fn, delay)`.\n   *\n   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using\n   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed\n   * via `$browser.defer.flush()`.\n   *\n   */\n  self.defer = function(fn, delay) {\n    var timeoutId;\n    outstandingRequestCount++;\n    timeoutId = setTimeout(function() {\n      delete pendingDeferIds[timeoutId];\n      completeOutstandingRequest(fn);\n    }, delay || 0);\n    pendingDeferIds[timeoutId] = true;\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.cancel\n   *\n   * @description\n   * Cancels a deferred task identified with `deferId`.\n   *\n   * @param {*} deferId Token returned by the `$browser.defer` function.\n   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n   *                    canceled.\n   */\n  self.defer.cancel = function(deferId) {\n    if (pendingDeferIds[deferId]) {\n      delete pendingDeferIds[deferId];\n      clearTimeout(deferId);\n      completeOutstandingRequest(noop);\n      return true;\n    }\n    return false;\n  };\n\n}\n\nfunction $BrowserProvider() {\n  this.$get = ['$window', '$log', '$sniffer', '$document',\n      function($window, $log, $sniffer, $document) {\n        return new Browser($window, $document, $log, $sniffer);\n      }];\n}\n\n/**\n * @ngdoc service\n * @name $cacheFactory\n *\n * @description\n * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to\n * them.\n *\n * ```js\n *\n *  var cache = $cacheFactory('cacheId');\n *  expect($cacheFactory.get('cacheId')).toBe(cache);\n *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();\n *\n *  cache.put(\"key\", \"value\");\n *  cache.put(\"another key\", \"another value\");\n *\n *  // We've specified no options on creation\n *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});\n *\n * ```\n *\n *\n * @param {string} cacheId Name or id of the newly created cache.\n * @param {object=} options Options object that specifies the cache behavior. Properties:\n *\n *   - `{number=}` `capacity` — turns the cache into LRU cache.\n *\n * @returns {object} Newly created cache object with the following set of methods:\n *\n * - `{object}` `info()` — Returns id, size, and options of cache.\n * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns\n *   it.\n * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.\n * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.\n * - `{void}` `removeAll()` — Removes all cached values.\n * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.\n *\n * @example\n   <example module=\"cacheExampleApp\">\n     <file name=\"index.html\">\n       <div ng-controller=\"CacheController\">\n         <input ng-model=\"newCacheKey\" placeholder=\"Key\">\n         <input ng-model=\"newCacheValue\" placeholder=\"Value\">\n         <button ng-click=\"put(newCacheKey, newCacheValue)\">Cache</button>\n\n         <p ng-if=\"keys.length\">Cached Values</p>\n         <div ng-repeat=\"key in keys\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"cache.get(key)\"></b>\n         </div>\n\n         <p>Cache Info</p>\n         <div ng-repeat=\"(key, value) in cache.info()\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"value\"></b>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('cacheExampleApp', []).\n         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {\n           $scope.keys = [];\n           $scope.cache = $cacheFactory('cacheId');\n           $scope.put = function(key, value) {\n             if ($scope.cache.get(key) === undefined) {\n               $scope.keys.push(key);\n             }\n             $scope.cache.put(key, value === undefined ? null : value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       p {\n         margin: 10px 0 3px;\n       }\n     </file>\n   </example>\n */\nfunction $CacheFactoryProvider() {\n\n  this.$get = function() {\n    var caches = {};\n\n    function cacheFactory(cacheId, options) {\n      if (cacheId in caches) {\n        throw minErr('$cacheFactory')('iid', \"CacheId '{0}' is already taken!\", cacheId);\n      }\n\n      var size = 0,\n          stats = extend({}, options, {id: cacheId}),\n          data = {},\n          capacity = (options && options.capacity) || Number.MAX_VALUE,\n          lruHash = {},\n          freshEnd = null,\n          staleEnd = null;\n\n      /**\n       * @ngdoc type\n       * @name $cacheFactory.Cache\n       *\n       * @description\n       * A cache object used to store and retrieve data, primarily used by\n       * {@link $http $http} and the {@link ng.directive:script script} directive to cache\n       * templates and other data.\n       *\n       * ```js\n       *  angular.module('superCache')\n       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {\n       *      return $cacheFactory('super-cache');\n       *    }]);\n       * ```\n       *\n       * Example test:\n       *\n       * ```js\n       *  it('should behave like a cache', inject(function(superCache) {\n       *    superCache.put('key', 'value');\n       *    superCache.put('another key', 'another value');\n       *\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 2\n       *    });\n       *\n       *    superCache.remove('another key');\n       *    expect(superCache.get('another key')).toBeUndefined();\n       *\n       *    superCache.removeAll();\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 0\n       *    });\n       *  }));\n       * ```\n       */\n      return caches[cacheId] = {\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#put\n         * @kind function\n         *\n         * @description\n         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be\n         * retrieved later, and incrementing the size of the cache if the key was not already\n         * present in the cache. If behaving like an LRU cache, it will also remove stale\n         * entries from the set.\n         *\n         * It will not insert undefined values into the cache.\n         *\n         * @param {string} key the key under which the cached data is stored.\n         * @param {*} value the value to store alongside the key. If it is undefined, the key\n         *    will not be stored.\n         * @returns {*} the value stored.\n         */\n        put: function(key, value) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});\n\n            refresh(lruEntry);\n          }\n\n          if (isUndefined(value)) return;\n          if (!(key in data)) size++;\n          data[key] = value;\n\n          if (size > capacity) {\n            this.remove(staleEnd.key);\n          }\n\n          return value;\n        },\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#get\n         * @kind function\n         *\n         * @description\n         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the data to be retrieved\n         * @returns {*} the value stored.\n         */\n        get: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            refresh(lruEntry);\n          }\n\n          return data[key];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#remove\n         * @kind function\n         *\n         * @description\n         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the entry to be removed\n         */\n        remove: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            if (lruEntry == freshEnd) freshEnd = lruEntry.p;\n            if (lruEntry == staleEnd) staleEnd = lruEntry.n;\n            link(lruEntry.n,lruEntry.p);\n\n            delete lruHash[key];\n          }\n\n          delete data[key];\n          size--;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#removeAll\n         * @kind function\n         *\n         * @description\n         * Clears the cache object of any entries.\n         */\n        removeAll: function() {\n          data = {};\n          size = 0;\n          lruHash = {};\n          freshEnd = staleEnd = null;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#destroy\n         * @kind function\n         *\n         * @description\n         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,\n         * removing it from the {@link $cacheFactory $cacheFactory} set.\n         */\n        destroy: function() {\n          data = null;\n          stats = null;\n          lruHash = null;\n          delete caches[cacheId];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#info\n         * @kind function\n         *\n         * @description\n         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.\n         *\n         * @returns {object} an object with the following properties:\n         *   <ul>\n         *     <li>**id**: the id of the cache instance</li>\n         *     <li>**size**: the number of entries kept in the cache instance</li>\n         *     <li>**...**: any additional properties from the options object when creating the\n         *       cache.</li>\n         *   </ul>\n         */\n        info: function() {\n          return extend({}, stats, {size: size});\n        }\n      };\n\n\n      /**\n       * makes the `entry` the freshEnd of the LRU linked list\n       */\n      function refresh(entry) {\n        if (entry != freshEnd) {\n          if (!staleEnd) {\n            staleEnd = entry;\n          } else if (staleEnd == entry) {\n            staleEnd = entry.n;\n          }\n\n          link(entry.n, entry.p);\n          link(entry, freshEnd);\n          freshEnd = entry;\n          freshEnd.n = null;\n        }\n      }\n\n\n      /**\n       * bidirectionally links two entries of the LRU linked list\n       */\n      function link(nextEntry, prevEntry) {\n        if (nextEntry != prevEntry) {\n          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify\n          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify\n        }\n      }\n    }\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#info\n   *\n   * @description\n   * Get information about all the caches that have been created\n   *\n   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`\n   */\n    cacheFactory.info = function() {\n      var info = {};\n      forEach(caches, function(cache, cacheId) {\n        info[cacheId] = cache.info();\n      });\n      return info;\n    };\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#get\n   *\n   * @description\n   * Get access to a cache object by the `cacheId` used when it was created.\n   *\n   * @param {string} cacheId Name or id of a cache to access.\n   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.\n   */\n    cacheFactory.get = function(cacheId) {\n      return caches[cacheId];\n    };\n\n\n    return cacheFactory;\n  };\n}\n\n/**\n * @ngdoc service\n * @name $templateCache\n *\n * @description\n * The first time a template is used, it is loaded in the template cache for quick retrieval. You\n * can load templates directly into the cache in a `script` tag, or by consuming the\n * `$templateCache` service directly.\n *\n * Adding via the `script` tag:\n *\n * ```html\n *   <script type=\"text/ng-template\" id=\"templateId.html\">\n *     <p>This is the content of the template</p>\n *   </script>\n * ```\n *\n * **Note:** the `script` tag containing the template does not need to be included in the `head` of\n * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (IE,\n * element with ng-app attribute), otherwise the template will be ignored.\n *\n * Adding via the `$templateCache` service:\n *\n * ```js\n * var myApp = angular.module('myApp', []);\n * myApp.run(function($templateCache) {\n *   $templateCache.put('templateId.html', 'This is the content of the template');\n * });\n * ```\n *\n * To retrieve the template later, simply use it in your HTML:\n * ```html\n * <div ng-include=\" 'templateId.html' \"></div>\n * ```\n *\n * or get it via Javascript:\n * ```js\n * $templateCache.get('templateId.html')\n * ```\n *\n * See {@link ng.$cacheFactory $cacheFactory}.\n *\n */\nfunction $TemplateCacheProvider() {\n  this.$get = ['$cacheFactory', function($cacheFactory) {\n    return $cacheFactory('templates');\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!\n *\n * DOM-related variables:\n *\n * - \"node\" - DOM Node\n * - \"element\" - DOM Element or Node\n * - \"$node\" or \"$element\" - jqLite-wrapped node or element\n *\n *\n * Compiler related stuff:\n *\n * - \"linkFn\" - linking fn of a single directive\n * - \"nodeLinkFn\" - function that aggregates all linking fns for a particular node\n * - \"childLinkFn\" -  function that aggregates all linking fns for child nodes of a particular node\n * - \"compositeLinkFn\" - function that aggregates all linking fns for a compilation root (nodeList)\n */\n\n\n/**\n * @ngdoc service\n * @name $compile\n * @kind function\n *\n * @description\n * Compiles an HTML string or DOM into a template and produces a template function, which\n * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.\n *\n * The compilation is a process of walking the DOM tree and matching DOM elements to\n * {@link ng.$compileProvider#directive directives}.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** This document is an in-depth reference of all directive options.\n * For a gentle introduction to directives with examples of common use cases,\n * see the {@link guide/directive directive guide}.\n * </div>\n *\n * ## Comprehensive Directive API\n *\n * There are many different options for a directive.\n *\n * The difference resides in the return value of the factory function.\n * You can either return a \"Directive Definition Object\" (see below) that defines the directive properties,\n * or just the `postLink` function (all other properties will have the default values).\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's recommended to use the \"directive definition object\" form.\n * </div>\n *\n * Here's an example directive declared with a Directive Definition Object:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       priority: 0,\n *       template: '<div></div>', // or // function(tElement, tAttrs) { ... },\n *       // or\n *       // templateUrl: 'directive.html', // or // function(tElement, tAttrs) { ... },\n *       transclude: false,\n *       restrict: 'A',\n *       templateNamespace: 'html',\n *       scope: false,\n *       controller: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },\n *       controllerAs: 'stringIdentifier',\n *       bindToController: false,\n *       require: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],\n *       compile: function compile(tElement, tAttrs, transclude) {\n *         return {\n *           pre: function preLink(scope, iElement, iAttrs, controller) { ... },\n *           post: function postLink(scope, iElement, iAttrs, controller) { ... }\n *         }\n *         // or\n *         // return function postLink( ... ) { ... }\n *       },\n *       // or\n *       // link: {\n *       //  pre: function preLink(scope, iElement, iAttrs, controller) { ... },\n *       //  post: function postLink(scope, iElement, iAttrs, controller) { ... }\n *       // }\n *       // or\n *       // link: function postLink( ... ) { ... }\n *     };\n *     return directiveDefinitionObject;\n *   });\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Any unspecified options will use the default value. You can see the default values below.\n * </div>\n *\n * Therefore the above can be simplified as:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       link: function postLink(scope, iElement, iAttrs) { ... }\n *     };\n *     return directiveDefinitionObject;\n *     // or\n *     // return function postLink(scope, iElement, iAttrs) { ... }\n *   });\n * ```\n *\n *\n *\n * ### Directive Definition Object\n *\n * The directive definition object provides instructions to the {@link ng.$compile\n * compiler}. The attributes are:\n *\n * #### `multiElement`\n * When this property is set to true, the HTML compiler will collect DOM nodes between\n * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them\n * together as the directive elements. It is recommended that this feature be used on directives\n * which are not strictly behavioural (such as {@link ngClick}), and which\n * do not manipulate or replace child nodes (such as {@link ngInclude}).\n *\n * #### `priority`\n * When there are multiple directives defined on a single DOM element, sometimes it\n * is necessary to specify the order in which the directives are applied. The `priority` is used\n * to sort the directives before their `compile` functions get called. Priority is defined as a\n * number. Directives with greater numerical `priority` are compiled first. Pre-link functions\n * are also run in priority order, but post-link functions are run in reverse order. The order\n * of directives with the same priority is undefined. The default priority is `0`.\n *\n * #### `terminal`\n * If set to true then the current `priority` will be the last set of directives\n * which will execute (any directives at the current priority will still execute\n * as the order of execution on same `priority` is undefined). Note that expressions\n * and other directives used in the directive's template will also be excluded from execution.\n *\n * #### `scope`\n * **If set to `true`,** then a new scope will be created for this directive. If multiple directives on the\n * same element request a new scope, only one new scope is created. The new scope rule does not\n * apply for the root of the template since the root of the template always gets a new scope.\n *\n * **If set to `{}` (object hash),** then a new \"isolate\" scope is created. The 'isolate' scope differs from\n * normal scope in that it does not prototypically inherit from the parent scope. This is useful\n * when creating reusable components, which should not accidentally read or modify data in the\n * parent scope.\n *\n * The 'isolate' scope takes an object hash which defines a set of local scope properties\n * derived from the parent scope. These local properties are useful for aliasing values for\n * templates. Locals definition is a hash of local scope property to its source:\n *\n * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is\n *   always a string since DOM attributes are strings. If no `attr` name is specified  then the\n *   attribute name is assumed to be the same as the local name.\n *   Given `<widget my-attr=\"hello {{name}}\">` and widget definition\n *   of `scope: { localName:'@myAttr' }`, then widget scope property `localName` will reflect\n *   the interpolated value of `hello {{name}}`. As the `name` attribute changes so will the\n *   `localName` property on the widget scope. The `name` is read from the parent scope (not\n *   component scope).\n *\n * * `=` or `=attr` - set up bi-directional binding between a local scope property and the\n *   parent scope property of name defined via the value of the `attr` attribute. If no `attr`\n *   name is specified then the attribute name is assumed to be the same as the local name.\n *   Given `<widget my-attr=\"parentModel\">` and widget definition of\n *   `scope: { localModel:'=myAttr' }`, then widget scope property `localModel` will reflect the\n *   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected\n *   in `localModel` and any changes in `localModel` will reflect in `parentModel`. If the parent\n *   scope property doesn't exist, it will throw a NON_ASSIGNABLE_MODEL_EXPRESSION exception. You\n *   can avoid this behavior using `=?` or `=?attr` in order to flag the property as optional. If\n *   you want to shallow watch for changes (i.e. $watchCollection instead of $watch) you can use\n *   `=*` or `=*attr` (`=*?` or `=*?attr` if the property is optional).\n *\n * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope.\n *   If no `attr` name is specified then the attribute name is assumed to be the same as the\n *   local name. Given `<widget my-attr=\"count = count + value\">` and widget definition of\n *   `scope: { localFn:'&myAttr' }`, then isolate scope property `localFn` will point to\n *   a function wrapper for the `count = count + value` expression. Often it's desirable to\n *   pass data from the isolated scope via an expression to the parent scope, this can be\n *   done by passing a map of local variable names and values into the expression wrapper fn.\n *   For example, if the expression is `increment(amount)` then we can specify the amount value\n *   by calling the `localFn` as `localFn({amount: 22})`.\n *\n *\n * #### `bindToController`\n * When an isolate scope is used for a component (see above), and `controllerAs` is used, `bindToController: true` will\n * allow a component to have its properties bound to the controller, rather than to scope. When the controller\n * is instantiated, the initial values of the isolate scope bindings are already available.\n *\n * #### `controller`\n * Controller constructor function. The controller is instantiated before the\n * pre-linking phase and it is shared with other directives (see\n * `require` attribute). This allows the directives to communicate with each other and augment\n * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:\n *\n * * `$scope` - Current scope associated with the element\n * * `$element` - Current element\n * * `$attrs` - Current attributes object for the element\n * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:\n *   `function([scope], cloneLinkingFn, futureParentElement)`.\n *    * `scope`: optional argument to override the scope.\n *    * `cloneLinkingFn`: optional argument to create clones of the original transcluded content.\n *    * `futureParentElement`:\n *        * defines the parent to which the `cloneLinkingFn` will add the cloned elements.\n *        * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.\n *        * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)\n *          and when the `cloneLinkinFn` is passed,\n *          as those elements need to created and cloned in a special way when they are defined outside their\n *          usual containers (e.g. like `<svg>`).\n *        * See also the `directive.templateNamespace` property.\n *\n *\n * #### `require`\n * Require another directive and inject its controller as the fourth argument to the linking function. The\n * `require` takes a string name (or array of strings) of the directive(s) to pass in. If an array is used, the\n * injected argument will be an array in corresponding order. If no such directive can be\n * found, or if the directive does not have a controller, then an error is raised (unless no link function\n * is specified, in which case error checking is skipped). The name can be prefixed with:\n *\n * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.\n * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.\n * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.\n * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.\n * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass\n *   `null` to the `link` fn if not found.\n * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass\n *   `null` to the `link` fn if not found.\n *\n *\n * #### `controllerAs`\n * Controller alias at the directive scope. An alias for the controller so it\n * can be referenced at the directive template. The directive needs to define a scope for this\n * configuration to be used. Useful in the case when directive is used as component.\n *\n *\n * #### `restrict`\n * String of subset of `EACM` which restricts the directive to a specific directive\n * declaration style. If omitted, the defaults (elements and attributes) are used.\n *\n * * `E` - Element name (default): `<my-directive></my-directive>`\n * * `A` - Attribute (default): `<div my-directive=\"exp\"></div>`\n * * `C` - Class: `<div class=\"my-directive: exp;\"></div>`\n * * `M` - Comment: `<!-- directive: my-directive exp -->`\n *\n *\n * #### `templateNamespace`\n * String representing the document type used by the markup in the template.\n * AngularJS needs this information as those elements need to be created and cloned\n * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.\n *\n * * `html` - All root nodes in the template are HTML. Root nodes may also be\n *   top-level elements such as `<svg>` or `<math>`.\n * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).\n * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).\n *\n * If no `templateNamespace` is specified, then the namespace is considered to be `html`.\n *\n * #### `template`\n * HTML markup that may:\n * * Replace the contents of the directive's element (default).\n * * Replace the directive's element itself (if `replace` is true - DEPRECATED).\n * * Wrap the contents of the directive's element (if `transclude` is true).\n *\n * Value may be:\n *\n * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.\n * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`\n *   function api below) and returns a string value.\n *\n *\n * #### `templateUrl`\n * This is similar to `template` but the template is loaded from the specified URL, asynchronously.\n *\n * Because template loading is asynchronous the compiler will suspend compilation of directives on that element\n * for later when the template has been resolved.  In the meantime it will continue to compile and link\n * sibling and parent elements as though this element had not contained any directives.\n *\n * The compiler does not suspend the entire compilation to wait for templates to be loaded because this\n * would result in the whole app \"stalling\" until all templates are loaded asynchronously - even in the\n * case when only one deeply nested directive has `templateUrl`.\n *\n * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}\n *\n * You can specify `templateUrl` as a string representing the URL or as a function which takes two\n * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns\n * a string value representing the url.  In either case, the template URL is passed through {@link\n * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.\n *\n *\n * #### `replace` ([*DEPRECATED*!], will be removed in next major release - i.e. v2.0)\n * specify what the template should replace. Defaults to `false`.\n *\n * * `true` - the template will replace the directive's element.\n * * `false` - the template will replace the contents of the directive's element.\n *\n * The replacement process migrates all of the attributes / classes from the old element to the new\n * one. See the {@link guide/directive#template-expanding-directive\n * Directives Guide} for an example.\n *\n * There are very few scenarios where element replacement is required for the application function,\n * the main one being reusable custom components that are used within SVG contexts\n * (because SVG doesn't work with custom elements in the DOM tree).\n *\n * #### `transclude`\n * Extract the contents of the element where the directive appears and make it available to the directive.\n * The contents are compiled and provided to the directive as a **transclusion function**. See the\n * {@link $compile#transclusion Transclusion} section below.\n *\n * There are two kinds of transclusion depending upon whether you want to transclude just the contents of the\n * directive's element or the entire element:\n *\n * * `true` - transclude the content (i.e. the child nodes) of the directive's element.\n * * `'element'` - transclude the whole of the directive's element including any directives on this\n *   element that defined at a lower priority than this directive. When used, the `template`\n *   property is ignored.\n *\n *\n * #### `compile`\n *\n * ```js\n *   function compile(tElement, tAttrs, transclude) { ... }\n * ```\n *\n * The compile function deals with transforming the template DOM. Since most directives do not do\n * template transformation, it is not used often. The compile function takes the following arguments:\n *\n *   * `tElement` - template element - The element where the directive has been declared. It is\n *     safe to do template transformation on the element and child elements only.\n *\n *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared\n *     between all directive compile functions.\n *\n *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`\n *\n * <div class=\"alert alert-warning\">\n * **Note:** The template instance and the link instance may be different objects if the template has\n * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that\n * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration\n * should be done in a linking function rather than in a compile function.\n * </div>\n\n * <div class=\"alert alert-warning\">\n * **Note:** The compile function cannot handle directives that recursively use themselves in their\n * own templates or compile functions. Compiling these directives results in an infinite loop and a\n * stack overflow errors.\n *\n * This can be avoided by manually using $compile in the postLink function to imperatively compile\n * a directive's template instead of relying on automatic template compilation via `template` or\n * `templateUrl` declaration or manual compilation inside the compile function.\n * </div>\n *\n * <div class=\"alert alert-error\">\n * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it\n *   e.g. does not know about the right outer scope. Please use the transclude function that is passed\n *   to the link function instead.\n * </div>\n\n * A compile function can have a return value which can be either a function or an object.\n *\n * * returning a (post-link) function - is equivalent to registering the linking function via the\n *   `link` property of the config object when the compile function is empty.\n *\n * * returning an object with function(s) registered via `pre` and `post` properties - allows you to\n *   control when a linking function should be called during the linking phase. See info about\n *   pre-linking and post-linking functions below.\n *\n *\n * #### `link`\n * This property is used only if the `compile` property is not defined.\n *\n * ```js\n *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }\n * ```\n *\n * The link function is responsible for registering DOM listeners as well as updating the DOM. It is\n * executed after the template has been cloned. This is where most of the directive logic will be\n * put.\n *\n *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the\n *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.\n *\n *   * `iElement` - instance element - The element where the directive is to be used. It is safe to\n *     manipulate the children of the element only in `postLink` function since the children have\n *     already been linked.\n *\n *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared\n *     between all directive linking functions.\n *\n *   * `controller` - the directive's required controller instance(s) - Instances are shared\n *     among all directives, which allows the directives to use the controllers as a communication\n *     channel. The exact value depends on the directive's `require` property:\n *       * `string`: the controller instance\n *       * `array`: array of controller instances\n *       * no controller(s) required: `undefined`\n *\n *     If a required controller cannot be found, and it is optional, the instance is `null`,\n *     otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown.\n *\n *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.\n *     This is the same as the `$transclude`\n *     parameter of directive controllers, see there for details.\n *     `function([scope], cloneLinkingFn, futureParentElement)`.\n *\n * #### Pre-linking function\n *\n * Executed before the child elements are linked. Not safe to do DOM transformation since the\n * compiler linking function will fail to locate the correct elements for linking.\n *\n * #### Post-linking function\n *\n * Executed after the child elements are linked.\n *\n * Note that child elements that contain `templateUrl` directives will not have been compiled\n * and linked since they are waiting for their template to load asynchronously and their own\n * compilation and linking has been suspended until that occurs.\n *\n * It is safe to do DOM transformation in the post-linking function on elements that are not waiting\n * for their async templates to be resolved.\n *\n *\n * ### Transclusion\n *\n * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and\n * copying them to another part of the DOM, while maintaining their connection to the original AngularJS\n * scope from where they were taken.\n *\n * Transclusion is used (often with {@link ngTransclude}) to insert the\n * original contents of a directive's element into a specified place in the template of the directive.\n * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded\n * content has access to the properties on the scope from which it was taken, even if the directive\n * has isolated scope.\n * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.\n *\n * This makes it possible for the widget to have private state for its template, while the transcluded\n * content has access to its originating scope.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** When testing an element transclude directive you must not place the directive at the root of the\n * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives\n * Testing Transclusion Directives}.\n * </div>\n *\n * #### Transclusion Functions\n *\n * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion\n * function** to the directive's `link` function and `controller`. This transclusion function is a special\n * **linking function** that will return the compiled contents linked to a new transclusion scope.\n *\n * <div class=\"alert alert-info\">\n * If you are just using {@link ngTransclude} then you don't need to worry about this function, since\n * ngTransclude will deal with it for us.\n * </div>\n *\n * If you want to manually control the insertion and removal of the transcluded content in your directive\n * then you must use this transclude function. When you call a transclude function it returns a a jqLite/JQuery\n * object that contains the compiled DOM, which is linked to the correct transclusion scope.\n *\n * When you call a transclusion function you can pass in a **clone attach function**. This function accepts\n * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded\n * content and the `scope` is the newly created transclusion scope, to which the clone is bound.\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a translude function\n * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.\n * </div>\n *\n * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone\n * attach function**:\n *\n * ```js\n * var transcludedContent, transclusionScope;\n *\n * $transclude(function(clone, scope) {\n *   element.append(clone);\n *   transcludedContent = clone;\n *   transclusionScope = scope;\n * });\n * ```\n *\n * Later, if you want to remove the transcluded content from your DOM then you should also destroy the\n * associated transclusion scope:\n *\n * ```js\n * transcludedContent.remove();\n * transclusionScope.$destroy();\n * ```\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: if you intend to add and remove transcluded content manually in your directive\n * (by calling the transclude function to get the DOM and and calling `element.remove()` to remove it),\n * then you are also responsible for calling `$destroy` on the transclusion scope.\n * </div>\n *\n * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}\n * automatically destroy their transluded clones as necessary so you do not need to worry about this if\n * you are simply using {@link ngTransclude} to inject the transclusion into your directive.\n *\n *\n * #### Transclusion Scopes\n *\n * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion\n * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed\n * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it\n * was taken.\n *\n * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look\n * like this:\n *\n * ```html\n * <div ng-app>\n *   <div isolate>\n *     <div transclusion>\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * The `$parent` scope hierarchy will look like this:\n *\n * ```\n * - $rootScope\n *   - isolate\n *     - transclusion\n * ```\n *\n * but the scopes will inherit prototypically from different scopes to their `$parent`.\n *\n * ```\n * - $rootScope\n *   - transclusion\n * - isolate\n * ```\n *\n *\n * ### Attributes\n *\n * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the\n * `link()` or `compile()` functions. It has a variety of uses.\n *\n * accessing *Normalized attribute names:*\n * Directives like 'ngBind' can be expressed in many ways: 'ng:bind', `data-ng-bind`, or 'x-ng-bind'.\n * the attributes object allows for normalized access to\n *   the attributes.\n *\n * * *Directive inter-communication:* All directives share the same instance of the attributes\n *   object which allows the directives to use the attributes object as inter directive\n *   communication.\n *\n * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object\n *   allowing other directives to read the interpolated value.\n *\n * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes\n *   that contain interpolation (e.g. `src=\"{{bar}}\"`). Not only is this very efficient but it's also\n *   the only way to easily get the actual value because during the linking phase the interpolation\n *   hasn't been evaluated yet and so the value is at this time set to `undefined`.\n *\n * ```js\n * function linkingFn(scope, elm, attrs, ctrl) {\n *   // get the attribute value\n *   console.log(attrs.ngModel);\n *\n *   // change the attribute\n *   attrs.$set('ngModel', 'new value');\n *\n *   // observe changes to interpolated attribute\n *   attrs.$observe('ngModel', function(value) {\n *     console.log('ngModel has changed value to ' + value);\n *   });\n * }\n * ```\n *\n * ## Example\n *\n * <div class=\"alert alert-warning\">\n * **Note**: Typically directives are registered with `module.directive`. The example below is\n * to illustrate how `$compile` works.\n * </div>\n *\n <example module=\"compileExample\">\n   <file name=\"index.html\">\n    <script>\n      angular.module('compileExample', [], function($compileProvider) {\n        // configure new 'compile' directive by passing a directive\n        // factory function. The factory function injects the '$compile'\n        $compileProvider.directive('compile', function($compile) {\n          // directive factory creates a link function\n          return function(scope, element, attrs) {\n            scope.$watch(\n              function(scope) {\n                 // watch the 'compile' expression for changes\n                return scope.$eval(attrs.compile);\n              },\n              function(value) {\n                // when the 'compile' expression changes\n                // assign it into the current DOM\n                element.html(value);\n\n                // compile the new DOM and link it to the current\n                // scope.\n                // NOTE: we only compile .childNodes so that\n                // we don't get into infinite loop compiling ourselves\n                $compile(element.contents())(scope);\n              }\n            );\n          };\n        });\n      })\n      .controller('GreeterController', ['$scope', function($scope) {\n        $scope.name = 'Angular';\n        $scope.html = 'Hello {{name}}';\n      }]);\n    </script>\n    <div ng-controller=\"GreeterController\">\n      <input ng-model=\"name\"> <br>\n      <textarea ng-model=\"html\"></textarea> <br>\n      <div compile=\"html\"></div>\n    </div>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n     it('should auto compile', function() {\n       var textarea = $('textarea');\n       var output = $('div[compile]');\n       // The initial state reads 'Hello Angular'.\n       expect(output.getText()).toBe('Hello Angular');\n       textarea.clear();\n       textarea.sendKeys('{{name}}!');\n       expect(output.getText()).toBe('Angular!');\n     });\n   </file>\n </example>\n\n *\n *\n * @param {string|DOMElement} element Element or HTML string to compile into a template function.\n * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED.\n *\n * <div class=\"alert alert-error\">\n * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it\n *   e.g. will not use the right outer scope. Please pass the transclude function as a\n *   `parentBoundTranscludeFn` to the link function instead.\n * </div>\n *\n * @param {number} maxPriority only apply directives lower than given priority (Only effects the\n *                 root element(s), not their children)\n * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template\n * (a DOM element/tree) to a scope. Where:\n *\n *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.\n *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the\n *  `template` and call the `cloneAttachFn` function allowing the caller to attach the\n *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is\n *  called as: <br> `cloneAttachFn(clonedElement, scope)` where:\n *\n *      * `clonedElement` - is a clone of the original `element` passed into the compiler.\n *      * `scope` - is the current scope with which the linking function is working with.\n *\n *  * `options` - An optional object hash with linking options. If `options` is provided, then the following\n *  keys may be used to control linking behavior:\n *\n *      * `parentBoundTranscludeFn` - the transclude function made available to\n *        directives; if given, it will be passed through to the link functions of\n *        directives found in `element` during compilation.\n *      * `transcludeControllers` - an object hash with keys that map controller names\n *        to controller instances; if given, it will make the controllers\n *        available to directives.\n *      * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add\n *        the cloned elements; only needed for transcludes that are allowed to contain non html\n *        elements (e.g. SVG elements). See also the directive.controller property.\n *\n * Calling the linking function returns the element of the template. It is either the original\n * element passed in, or the clone of the element if the `cloneAttachFn` is provided.\n *\n * After linking the view is not updated until after a call to $digest which typically is done by\n * Angular automatically.\n *\n * If you need access to the bound view, there are two ways to do it:\n *\n * - If you are not asking the linking function to clone the template, create the DOM element(s)\n *   before you send them to the compiler and keep this reference around.\n *   ```js\n *     var element = $compile('<p>{{total}}</p>')(scope);\n *   ```\n *\n * - if on the other hand, you need the element to be cloned, the view reference from the original\n *   example would not point to the clone, but rather to the original template that was cloned. In\n *   this case, you can access the clone via the cloneAttachFn:\n *   ```js\n *     var templateElement = angular.element('<p>{{total}}</p>'),\n *         scope = ....;\n *\n *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {\n *       //attach the clone to DOM document at the right place\n *     });\n *\n *     //now we have reference to the cloned DOM via `clonedElement`\n *   ```\n *\n *\n * For information on how the compiler works, see the\n * {@link guide/compiler Angular HTML Compiler} section of the Developer Guide.\n */\n\nvar $compileMinErr = minErr('$compile');\n\n/**\n * @ngdoc provider\n * @name $compileProvider\n *\n * @description\n */\n$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];\nfunction $CompileProvider($provide, $$sanitizeUriProvider) {\n  var hasDirectives = {},\n      Suffix = 'Directive',\n      COMMENT_DIRECTIVE_REGEXP = /^\\s*directive\\:\\s*([\\w\\-]+)\\s+(.*)$/,\n      CLASS_DIRECTIVE_REGEXP = /(([\\w\\-]+)(?:\\:([^;]+))?;?)/,\n      ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),\n      REQUIRE_PREFIX_REGEXP = /^(?:(\\^\\^?)?(\\?)?(\\^\\^?)?)?/;\n\n  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes\n  // The assumption is that future DOM event attribute names will begin with\n  // 'on' and be composed of only English letters.\n  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;\n\n  function parseIsolateBindings(scope, directiveName) {\n    var LOCAL_REGEXP = /^\\s*([@&]|=(\\*?))(\\??)\\s*(\\w*)\\s*$/;\n\n    var bindings = {};\n\n    forEach(scope, function(definition, scopeName) {\n      var match = definition.match(LOCAL_REGEXP);\n\n      if (!match) {\n        throw $compileMinErr('iscp',\n            \"Invalid isolate scope definition for directive '{0}'.\" +\n            \" Definition: {... {1}: '{2}' ...}\",\n            directiveName, scopeName, definition);\n      }\n\n      bindings[scopeName] = {\n        mode: match[1][0],\n        collection: match[2] === '*',\n        optional: match[3] === '?',\n        attrName: match[4] || scopeName\n      };\n    });\n\n    return bindings;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#directive\n   * @kind function\n   *\n   * @description\n   * Register a new directive with the compiler.\n   *\n   * @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which\n   *    will match as <code>ng-bind</code>), or an object map of directives where the keys are the\n   *    names and the values are the factories.\n   * @param {Function|Array} directiveFactory An injectable directive factory function. See\n   *    {@link guide/directive} for more info.\n   * @returns {ng.$compileProvider} Self for chaining.\n   */\n   this.directive = function registerDirective(name, directiveFactory) {\n    assertNotHasOwnProperty(name, 'directive');\n    if (isString(name)) {\n      assertArg(directiveFactory, 'directiveFactory');\n      if (!hasDirectives.hasOwnProperty(name)) {\n        hasDirectives[name] = [];\n        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',\n          function($injector, $exceptionHandler) {\n            var directives = [];\n            forEach(hasDirectives[name], function(directiveFactory, index) {\n              try {\n                var directive = $injector.invoke(directiveFactory);\n                if (isFunction(directive)) {\n                  directive = { compile: valueFn(directive) };\n                } else if (!directive.compile && directive.link) {\n                  directive.compile = valueFn(directive.link);\n                }\n                directive.priority = directive.priority || 0;\n                directive.index = index;\n                directive.name = directive.name || name;\n                directive.require = directive.require || (directive.controller && directive.name);\n                directive.restrict = directive.restrict || 'EA';\n                if (isObject(directive.scope)) {\n                  directive.$$isolateBindings = parseIsolateBindings(directive.scope, directive.name);\n                }\n                directives.push(directive);\n              } catch (e) {\n                $exceptionHandler(e);\n              }\n            });\n            return directives;\n          }]);\n      }\n      hasDirectives[name].push(directiveFactory);\n    } else {\n      forEach(name, reverseParams(registerDirective));\n    }\n    return this;\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at preventing XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.aHrefSanitizationWhitelist();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#debugInfoEnabled\n   *\n   * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the\n   * current debugInfoEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable various debug runtime information in the compiler such as adding\n   * binding information and a reference to the current scope on to DOM elements.\n   * If enabled, the compiler will add the following to DOM elements that have been bound to the scope\n   * * `ng-binding` CSS class\n   * * `$binding` data property containing an array of the binding expressions\n   *\n   * You may want to disable this in production for a significant performance boost. See\n   * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.\n   *\n   * The default value is true.\n   */\n  var debugInfoEnabled = true;\n  this.debugInfoEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      debugInfoEnabled = enabled;\n      return this;\n    }\n    return debugInfoEnabled;\n  };\n\n  this.$get = [\n            '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',\n            '$controller', '$rootScope', '$document', '$sce', '$animate', '$$sanitizeUri',\n    function($injector,   $interpolate,   $exceptionHandler,   $templateRequest,   $parse,\n             $controller,   $rootScope,   $document,   $sce,   $animate,   $$sanitizeUri) {\n\n    var Attributes = function(element, attributesToCopy) {\n      if (attributesToCopy) {\n        var keys = Object.keys(attributesToCopy);\n        var i, l, key;\n\n        for (i = 0, l = keys.length; i < l; i++) {\n          key = keys[i];\n          this[key] = attributesToCopy[key];\n        }\n      } else {\n        this.$attr = {};\n      }\n\n      this.$$element = element;\n    };\n\n    Attributes.prototype = {\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$normalize\n       * @kind function\n       *\n       * @description\n       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or\n       * `data-`) to its normalized, camelCase form.\n       *\n       * Also there is special case for Moz prefix starting with upper case letter.\n       *\n       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n       *\n       * @param {string} name Name to normalize\n       */\n      $normalize: directiveNormalize,\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$addClass\n       * @kind function\n       *\n       * @description\n       * Adds the CSS class value specified by the classVal parameter to the element. If animations\n       * are enabled then an animation will be triggered for the class addition.\n       *\n       * @param {string} classVal The className value that will be added to the element\n       */\n      $addClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.addClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$removeClass\n       * @kind function\n       *\n       * @description\n       * Removes the CSS class value specified by the classVal parameter from the element. If\n       * animations are enabled then an animation will be triggered for the class removal.\n       *\n       * @param {string} classVal The className value that will be removed from the element\n       */\n      $removeClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.removeClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$updateClass\n       * @kind function\n       *\n       * @description\n       * Adds and removes the appropriate CSS class values to the element based on the difference\n       * between the new and old CSS class values (specified as newClasses and oldClasses).\n       *\n       * @param {string} newClasses The current CSS className value\n       * @param {string} oldClasses The former CSS className value\n       */\n      $updateClass: function(newClasses, oldClasses) {\n        var toAdd = tokenDifference(newClasses, oldClasses);\n        if (toAdd && toAdd.length) {\n          $animate.addClass(this.$$element, toAdd);\n        }\n\n        var toRemove = tokenDifference(oldClasses, newClasses);\n        if (toRemove && toRemove.length) {\n          $animate.removeClass(this.$$element, toRemove);\n        }\n      },\n\n      /**\n       * Set a normalized attribute on the element in a way such that all directives\n       * can share the attribute. This function properly handles boolean attributes.\n       * @param {string} key Normalized key. (ie ngAttribute)\n       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.\n       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.\n       *     Defaults to true.\n       * @param {string=} attrName Optional none normalized name. Defaults to key.\n       */\n      $set: function(key, value, writeAttr, attrName) {\n        // TODO: decide whether or not to throw an error if \"class\"\n        //is set through this function since it may cause $updateClass to\n        //become unstable.\n\n        var node = this.$$element[0],\n            booleanKey = getBooleanAttrName(node, key),\n            aliasedKey = getAliasedAttrName(node, key),\n            observer = key,\n            nodeName;\n\n        if (booleanKey) {\n          this.$$element.prop(key, value);\n          attrName = booleanKey;\n        } else if (aliasedKey) {\n          this[aliasedKey] = value;\n          observer = aliasedKey;\n        }\n\n        this[key] = value;\n\n        // translate normalized key to actual key\n        if (attrName) {\n          this.$attr[key] = attrName;\n        } else {\n          attrName = this.$attr[key];\n          if (!attrName) {\n            this.$attr[key] = attrName = snake_case(key, '-');\n          }\n        }\n\n        nodeName = nodeName_(this.$$element);\n\n        if ((nodeName === 'a' && key === 'href') ||\n            (nodeName === 'img' && key === 'src')) {\n          // sanitize a[href] and img[src] values\n          this[key] = value = $$sanitizeUri(value, key === 'src');\n        } else if (nodeName === 'img' && key === 'srcset') {\n          // sanitize img[srcset] values\n          var result = \"\";\n\n          // first check if there are spaces because it's not the same pattern\n          var trimmedSrcset = trim(value);\n          //                (   999x   ,|   999w   ,|   ,|,   )\n          var srcPattern = /(\\s+\\d+x\\s*,|\\s+\\d+w\\s*,|\\s+,|,\\s+)/;\n          var pattern = /\\s/.test(trimmedSrcset) ? srcPattern : /(,)/;\n\n          // split srcset into tuple of uri and descriptor except for the last item\n          var rawUris = trimmedSrcset.split(pattern);\n\n          // for each tuples\n          var nbrUrisWith2parts = Math.floor(rawUris.length / 2);\n          for (var i = 0; i < nbrUrisWith2parts; i++) {\n            var innerIdx = i * 2;\n            // sanitize the uri\n            result += $$sanitizeUri(trim(rawUris[innerIdx]), true);\n            // add the descriptor\n            result += (\" \" + trim(rawUris[innerIdx + 1]));\n          }\n\n          // split the last item into uri and descriptor\n          var lastTuple = trim(rawUris[i * 2]).split(/\\s/);\n\n          // sanitize the last uri\n          result += $$sanitizeUri(trim(lastTuple[0]), true);\n\n          // and add the last descriptor if any\n          if (lastTuple.length === 2) {\n            result += (\" \" + trim(lastTuple[1]));\n          }\n          this[key] = value = result;\n        }\n\n        if (writeAttr !== false) {\n          if (value === null || value === undefined) {\n            this.$$element.removeAttr(attrName);\n          } else {\n            this.$$element.attr(attrName, value);\n          }\n        }\n\n        // fire observers\n        var $$observers = this.$$observers;\n        $$observers && forEach($$observers[observer], function(fn) {\n          try {\n            fn(value);\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        });\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$observe\n       * @kind function\n       *\n       * @description\n       * Observes an interpolated attribute.\n       *\n       * The observer function will be invoked once during the next `$digest` following\n       * compilation. The observer is then invoked whenever the interpolated value\n       * changes.\n       *\n       * @param {string} key Normalized key. (ie ngAttribute) .\n       * @param {function(interpolatedValue)} fn Function that will be called whenever\n                the interpolated value of the attribute changes.\n       *        See the {@link guide/directive#text-and-attribute-bindings Directives} guide for more info.\n       * @returns {function()} Returns a deregistration function for this observer.\n       */\n      $observe: function(key, fn) {\n        var attrs = this,\n            $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),\n            listeners = ($$observers[key] || ($$observers[key] = []));\n\n        listeners.push(fn);\n        $rootScope.$evalAsync(function() {\n          if (!listeners.$$inter && attrs.hasOwnProperty(key)) {\n            // no one registered attribute interpolation function, so lets call it manually\n            fn(attrs[key]);\n          }\n        });\n\n        return function() {\n          arrayRemove(listeners, fn);\n        };\n      }\n    };\n\n\n    function safeAddClass($element, className) {\n      try {\n        $element.addClass(className);\n      } catch (e) {\n        // ignore, since it means that we are trying to set class on\n        // SVG element, where class name is read-only.\n      }\n    }\n\n\n    var startSymbol = $interpolate.startSymbol(),\n        endSymbol = $interpolate.endSymbol(),\n        denormalizeTemplate = (startSymbol == '{{' || endSymbol  == '}}')\n            ? identity\n            : function denormalizeTemplate(template) {\n              return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n        },\n        NG_ATTR_BINDING = /^ngAttr[A-Z]/;\n\n    compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {\n      var bindings = $element.data('$binding') || [];\n\n      if (isArray(binding)) {\n        bindings = bindings.concat(binding);\n      } else {\n        bindings.push(binding);\n      }\n\n      $element.data('$binding', bindings);\n    } : noop;\n\n    compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {\n      safeAddClass($element, 'ng-binding');\n    } : noop;\n\n    compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {\n      var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';\n      $element.data(dataName, scope);\n    } : noop;\n\n    compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {\n      safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');\n    } : noop;\n\n    return compile;\n\n    //================================\n\n    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,\n                        previousCompileContext) {\n      if (!($compileNodes instanceof jqLite)) {\n        // jquery always rewraps, whereas we need to preserve the original selector so that we can\n        // modify it.\n        $compileNodes = jqLite($compileNodes);\n      }\n      // We can not compile top level text elements since text nodes can be merged and we will\n      // not be able to attach scope data to them, so we will wrap them in <span>\n      forEach($compileNodes, function(node, index) {\n        if (node.nodeType == NODE_TYPE_TEXT && node.nodeValue.match(/\\S+/) /* non-empty */ ) {\n          $compileNodes[index] = jqLite(node).wrap('<span></span>').parent()[0];\n        }\n      });\n      var compositeLinkFn =\n              compileNodes($compileNodes, transcludeFn, $compileNodes,\n                           maxPriority, ignoreDirective, previousCompileContext);\n      compile.$$addScopeClass($compileNodes);\n      var namespace = null;\n      return function publicLinkFn(scope, cloneConnectFn, options) {\n        assertArg(scope, 'scope');\n\n        options = options || {};\n        var parentBoundTranscludeFn = options.parentBoundTranscludeFn,\n          transcludeControllers = options.transcludeControllers,\n          futureParentElement = options.futureParentElement;\n\n        // When `parentBoundTranscludeFn` is passed, it is a\n        // `controllersBoundTransclude` function (it was previously passed\n        // as `transclude` to directive.link) so we must unwrap it to get\n        // its `boundTranscludeFn`\n        if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) {\n          parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude;\n        }\n\n        if (!namespace) {\n          namespace = detectNamespaceForChildElements(futureParentElement);\n        }\n        var $linkNode;\n        if (namespace !== 'html') {\n          // When using a directive with replace:true and templateUrl the $compileNodes\n          // (or a child element inside of them)\n          // might change, so we need to recreate the namespace adapted compileNodes\n          // for call to the link function.\n          // Note: This will already clone the nodes...\n          $linkNode = jqLite(\n            wrapTemplate(namespace, jqLite('<div>').append($compileNodes).html())\n          );\n        } else if (cloneConnectFn) {\n          // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n          // and sometimes changes the structure of the DOM.\n          $linkNode = JQLitePrototype.clone.call($compileNodes);\n        } else {\n          $linkNode = $compileNodes;\n        }\n\n        if (transcludeControllers) {\n          for (var controllerName in transcludeControllers) {\n            $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);\n          }\n        }\n\n        compile.$$addScopeInfo($linkNode, scope);\n\n        if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n        return $linkNode;\n      };\n    }\n\n    function detectNamespaceForChildElements(parentElement) {\n      // TODO: Make this detect MathML as well...\n      var node = parentElement && parentElement[0];\n      if (!node) {\n        return 'html';\n      } else {\n        return nodeName_(node) !== 'foreignobject' && node.toString().match(/SVG/) ? 'svg' : 'html';\n      }\n    }\n\n    /**\n     * Compile function matches each node in nodeList against the directives. Once all directives\n     * for a particular node are collected their compile functions are executed. The compile\n     * functions return values - the linking functions - are combined into a composite linking\n     * function, which is the a linking function for the node.\n     *\n     * @param {NodeList} nodeList an array of nodes or NodeList to compile\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *        scope argument is auto-generated to the new child of the transcluded parent scope.\n     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n     *        the rootElement must be set the jqLite collection of the compile root. This is\n     *        needed so that the jqLite collection items can be replaced with widgets.\n     * @param {number=} maxPriority Max directive priority.\n     * @returns {Function} A composite linking function of all of the matched directives or null.\n     */\n    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n                            previousCompileContext) {\n      var linkFns = [],\n          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;\n\n      for (var i = 0; i < nodeList.length; i++) {\n        attrs = new Attributes();\n\n        // we must always refer to nodeList[i] since the nodes can be replaced underneath us.\n        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n                                        ignoreDirective);\n\n        nodeLinkFn = (directives.length)\n            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n                                      null, [], [], previousCompileContext)\n            : null;\n\n        if (nodeLinkFn && nodeLinkFn.scope) {\n          compile.$$addScopeClass(attrs.$$element);\n        }\n\n        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n                      !(childNodes = nodeList[i].childNodes) ||\n                      !childNodes.length)\n            ? null\n            : compileNodes(childNodes,\n                 nodeLinkFn ? (\n                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n                     && nodeLinkFn.transclude) : transcludeFn);\n\n        if (nodeLinkFn || childLinkFn) {\n          linkFns.push(i, nodeLinkFn, childLinkFn);\n          linkFnFound = true;\n          nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;\n        }\n\n        //use the previous context only for the first element in the virtual group\n        previousCompileContext = null;\n      }\n\n      // return a linking function if we have found anything, null otherwise\n      return linkFnFound ? compositeLinkFn : null;\n\n      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n        var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;\n        var stableNodeList;\n\n\n        if (nodeLinkFnFound) {\n          // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our\n          // offsets don't get screwed up\n          var nodeListLength = nodeList.length;\n          stableNodeList = new Array(nodeListLength);\n\n          // create a sparse array by only copying the elements which have a linkFn\n          for (i = 0; i < linkFns.length; i+=3) {\n            idx = linkFns[i];\n            stableNodeList[idx] = nodeList[idx];\n          }\n        } else {\n          stableNodeList = nodeList;\n        }\n\n        for (i = 0, ii = linkFns.length; i < ii;) {\n          node = stableNodeList[linkFns[i++]];\n          nodeLinkFn = linkFns[i++];\n          childLinkFn = linkFns[i++];\n\n          if (nodeLinkFn) {\n            if (nodeLinkFn.scope) {\n              childScope = scope.$new();\n              compile.$$addScopeInfo(jqLite(node), childScope);\n            } else {\n              childScope = scope;\n            }\n\n            if (nodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(\n                  scope, nodeLinkFn.transclude, parentBoundTranscludeFn,\n                  nodeLinkFn.elementTranscludeOnThisElement);\n\n            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n              childBoundTranscludeFn = parentBoundTranscludeFn;\n\n            } else if (!parentBoundTranscludeFn && transcludeFn) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n            } else {\n              childBoundTranscludeFn = null;\n            }\n\n            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n          } else if (childLinkFn) {\n            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n          }\n        }\n      }\n    }\n\n    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn, elementTransclusion) {\n\n      var boundTranscludeFn = function(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {\n\n        if (!transcludedScope) {\n          transcludedScope = scope.$new(false, containingScope);\n          transcludedScope.$$transcluded = true;\n        }\n\n        return transcludeFn(transcludedScope, cloneFn, {\n          parentBoundTranscludeFn: previousBoundTranscludeFn,\n          transcludeControllers: controllers,\n          futureParentElement: futureParentElement\n        });\n      };\n\n      return boundTranscludeFn;\n    }\n\n    /**\n     * Looks for directives on the given node and adds them to the directive collection which is\n     * sorted.\n     *\n     * @param node Node to search.\n     * @param directives An array to which the directives are added to. This array is sorted before\n     *        the function returns.\n     * @param attrs The shared attrs object which is used to populate the normalized attributes.\n     * @param {number=} maxPriority Max directive priority.\n     */\n    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      var nodeType = node.nodeType,\n          attrsMap = attrs.$attr,\n          match,\n          className;\n\n      switch (nodeType) {\n        case NODE_TYPE_ELEMENT: /* Element */\n          // use the node name: <directive>\n          addDirective(directives,\n              directiveNormalize(nodeName_(node)), 'E', maxPriority, ignoreDirective);\n\n          // iterate over the attributes\n          for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,\n                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n            var attrStartName = false;\n            var attrEndName = false;\n\n            attr = nAttrs[j];\n            name = attr.name;\n            value = trim(attr.value);\n\n            // support ngAttr attribute binding\n            ngAttrName = directiveNormalize(name);\n            if (isNgAttr = NG_ATTR_BINDING.test(ngAttrName)) {\n              name = name.replace(PREFIX_REGEXP, '')\n                .substr(8).replace(/_(.)/g, function(match, letter) {\n                  return letter.toUpperCase();\n                });\n            }\n\n            var directiveNName = ngAttrName.replace(/(Start|End)$/, '');\n            if (directiveIsMultiElement(directiveNName)) {\n              if (ngAttrName === directiveNName + 'Start') {\n                attrStartName = name;\n                attrEndName = name.substr(0, name.length - 5) + 'end';\n                name = name.substr(0, name.length - 6);\n              }\n            }\n\n            nName = directiveNormalize(name.toLowerCase());\n            attrsMap[nName] = name;\n            if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n                attrs[nName] = value;\n                if (getBooleanAttrName(node, nName)) {\n                  attrs[nName] = true; // presence means true\n                }\n            }\n            addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);\n            addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n                          attrEndName);\n          }\n\n          // use class as directive\n          className = node.className;\n          if (isObject(className)) {\n              // Maybe SVGAnimatedString\n              className = className.animVal;\n          }\n          if (isString(className) && className !== '') {\n            while (match = CLASS_DIRECTIVE_REGEXP.exec(className)) {\n              nName = directiveNormalize(match[2]);\n              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[3]);\n              }\n              className = className.substr(match.index + match[0].length);\n            }\n          }\n          break;\n        case NODE_TYPE_TEXT: /* Text Node */\n          addTextInterpolateDirective(directives, node.nodeValue);\n          break;\n        case NODE_TYPE_COMMENT: /* Comment */\n          try {\n            match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n            if (match) {\n              nName = directiveNormalize(match[1]);\n              if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[2]);\n              }\n            }\n          } catch (e) {\n            // turns out that under some circumstances IE9 throws errors when one attempts to read\n            // comment's node value.\n            // Just ignore it and continue. (Can't seem to reproduce in test case.)\n          }\n          break;\n      }\n\n      directives.sort(byPriority);\n      return directives;\n    }\n\n    /**\n     * Given a node with an directive-start it collects all of the siblings until it finds\n     * directive-end.\n     * @param node\n     * @param attrStart\n     * @param attrEnd\n     * @returns {*}\n     */\n    function groupScan(node, attrStart, attrEnd) {\n      var nodes = [];\n      var depth = 0;\n      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n        do {\n          if (!node) {\n            throw $compileMinErr('uterdir',\n                      \"Unterminated attribute, found '{0}' but no matching '{1}' found.\",\n                      attrStart, attrEnd);\n          }\n          if (node.nodeType == NODE_TYPE_ELEMENT) {\n            if (node.hasAttribute(attrStart)) depth++;\n            if (node.hasAttribute(attrEnd)) depth--;\n          }\n          nodes.push(node);\n          node = node.nextSibling;\n        } while (depth > 0);\n      } else {\n        nodes.push(node);\n      }\n\n      return jqLite(nodes);\n    }\n\n    /**\n     * Wrapper for linking function which converts normal linking function into a grouped\n     * linking function.\n     * @param linkFn\n     * @param attrStart\n     * @param attrEnd\n     * @returns {Function}\n     */\n    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n      return function(scope, element, attrs, controllers, transcludeFn) {\n        element = groupScan(element[0], attrStart, attrEnd);\n        return linkFn(scope, element, attrs, controllers, transcludeFn);\n      };\n    }\n\n    /**\n     * Once the directives have been collected, their compile functions are executed. This method\n     * is responsible for inlining directive templates as well as terminating the application\n     * of the directives if the terminal directive has been reached.\n     *\n     * @param {Array} directives Array of collected directives to execute their compile function.\n     *        this needs to be pre-sorted by priority order.\n     * @param {Node} compileNode The raw DOM node to apply the compile functions to\n     * @param {Object} templateAttrs The shared attribute function\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *                                                  scope argument is auto-generated to the new\n     *                                                  child of the transcluded parent scope.\n     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n     *                              argument has the root jqLite array so that we can replace nodes\n     *                              on it.\n     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n     *                                           compiling the transclusion.\n     * @param {Array.<Function>} preLinkFns\n     * @param {Array.<Function>} postLinkFns\n     * @param {Object} previousCompileContext Context used for previous compilation of the current\n     *                                        node\n     * @returns {Function} linkFn\n     */\n    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n                                   previousCompileContext) {\n      previousCompileContext = previousCompileContext || {};\n\n      var terminalPriority = -Number.MAX_VALUE,\n          newScopeDirective,\n          controllerDirectives = previousCompileContext.controllerDirectives,\n          controllers,\n          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n          templateDirective = previousCompileContext.templateDirective,\n          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n          hasTranscludeDirective = false,\n          hasTemplate = false,\n          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n          $compileNode = templateAttrs.$$element = jqLite(compileNode),\n          directive,\n          directiveName,\n          $template,\n          replaceDirective = originalReplaceDirective,\n          childTranscludeFn = transcludeFn,\n          linkFn,\n          directiveValue;\n\n      // executes all directives on the current element\n      for (var i = 0, ii = directives.length; i < ii; i++) {\n        directive = directives[i];\n        var attrStart = directive.$$start;\n        var attrEnd = directive.$$end;\n\n        // collect multiblock sections\n        if (attrStart) {\n          $compileNode = groupScan(compileNode, attrStart, attrEnd);\n        }\n        $template = undefined;\n\n        if (terminalPriority > directive.priority) {\n          break; // prevent further processing of directives\n        }\n\n        if (directiveValue = directive.scope) {\n\n          // skip the check for directives with async templates, we'll check the derived sync\n          // directive when the template arrives\n          if (!directive.templateUrl) {\n            if (isObject(directiveValue)) {\n              // This directive is trying to add an isolated scope.\n              // Check that there is no scope of any kind already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,\n                                directive, $compileNode);\n              newIsolateScopeDirective = directive;\n            } else {\n              // This directive is trying to add a child scope.\n              // Check that there is no isolated scope already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n                                $compileNode);\n            }\n          }\n\n          newScopeDirective = newScopeDirective || directive;\n        }\n\n        directiveName = directive.name;\n\n        if (!directive.templateUrl && directive.controller) {\n          directiveValue = directive.controller;\n          controllerDirectives = controllerDirectives || {};\n          assertNoDuplicate(\"'\" + directiveName + \"' controller\",\n              controllerDirectives[directiveName], directive, $compileNode);\n          controllerDirectives[directiveName] = directive;\n        }\n\n        if (directiveValue = directive.transclude) {\n          hasTranscludeDirective = true;\n\n          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n          // This option should only be used by directives that know how to safely handle element transclusion,\n          // where the transcluded nodes are added or replaced after linking.\n          if (!directive.$$tlb) {\n            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n            nonTlbTranscludeDirective = directive;\n          }\n\n          if (directiveValue == 'element') {\n            hasElementTranscludeDirective = true;\n            terminalPriority = directive.priority;\n            $template = $compileNode;\n            $compileNode = templateAttrs.$$element =\n                jqLite(document.createComment(' ' + directiveName + ': ' +\n                                              templateAttrs[directiveName] + ' '));\n            compileNode = $compileNode[0];\n            replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n            childTranscludeFn = compile($template, transcludeFn, terminalPriority,\n                                        replaceDirective && replaceDirective.name, {\n                                          // Don't pass in:\n                                          // - controllerDirectives - otherwise we'll create duplicates controllers\n                                          // - newIsolateScopeDirective or templateDirective - combining templates with\n                                          //   element transclusion doesn't make sense.\n                                          //\n                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n                                          // on the same element more than once.\n                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective\n                                        });\n          } else {\n            $template = jqLite(jqLiteClone(compileNode)).contents();\n            $compileNode.empty(); // clear contents\n            childTranscludeFn = compile($template, transcludeFn);\n          }\n        }\n\n        if (directive.template) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          directiveValue = (isFunction(directive.template))\n              ? directive.template($compileNode, templateAttrs)\n              : directive.template;\n\n          directiveValue = denormalizeTemplate(directiveValue);\n\n          if (directive.replace) {\n            replaceDirective = directive;\n            if (jqLiteIsTextNode(directiveValue)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  \"Template for directive '{0}' must have exactly one root element. {1}\",\n                  directiveName, '');\n            }\n\n            replaceWith(jqCollection, $compileNode, compileNode);\n\n            var newTemplateAttrs = {$attr: {}};\n\n            // combine directives from the original node and from the template:\n            // - take the array of directives for this element\n            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n            // - collect directives from the template and sort them by priority\n            // - combine directives as: processed + template + unprocessed\n            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n            if (newIsolateScopeDirective) {\n              markDirectivesAsIsolate(templateDirectives);\n            }\n            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n            ii = directives.length;\n          } else {\n            $compileNode.html(directiveValue);\n          }\n        }\n\n        if (directive.templateUrl) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          if (directive.replace) {\n            replaceDirective = directive;\n          }\n\n          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n                controllerDirectives: controllerDirectives,\n                newIsolateScopeDirective: newIsolateScopeDirective,\n                templateDirective: templateDirective,\n                nonTlbTranscludeDirective: nonTlbTranscludeDirective\n              });\n          ii = directives.length;\n        } else if (directive.compile) {\n          try {\n            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n            if (isFunction(linkFn)) {\n              addLinkFns(null, linkFn, attrStart, attrEnd);\n            } else if (linkFn) {\n              addLinkFns(linkFn.pre, linkFn.post, attrStart, attrEnd);\n            }\n          } catch (e) {\n            $exceptionHandler(e, startingTag($compileNode));\n          }\n        }\n\n        if (directive.terminal) {\n          nodeLinkFn.terminal = true;\n          terminalPriority = Math.max(terminalPriority, directive.priority);\n        }\n\n      }\n\n      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n      nodeLinkFn.elementTranscludeOnThisElement = hasElementTranscludeDirective;\n      nodeLinkFn.templateOnThisElement = hasTemplate;\n      nodeLinkFn.transclude = childTranscludeFn;\n\n      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n      // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n      return nodeLinkFn;\n\n      ////////////////////\n\n      function addLinkFns(pre, post, attrStart, attrEnd) {\n        if (pre) {\n          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n          pre.require = directive.require;\n          pre.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n          }\n          preLinkFns.push(pre);\n        }\n        if (post) {\n          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n          post.require = directive.require;\n          post.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            post = cloneAndAnnotateFn(post, {isolateScope: true});\n          }\n          postLinkFns.push(post);\n        }\n      }\n\n\n      function getControllers(directiveName, require, $element, elementControllers) {\n        var value, retrievalMethod = 'data', optional = false;\n        var $searchElement = $element;\n        var match;\n        if (isString(require)) {\n          match = require.match(REQUIRE_PREFIX_REGEXP);\n          require = require.substring(match[0].length);\n\n          if (match[3]) {\n            if (match[1]) match[3] = null;\n            else match[1] = match[3];\n          }\n          if (match[1] === '^') {\n            retrievalMethod = 'inheritedData';\n          } else if (match[1] === '^^') {\n            retrievalMethod = 'inheritedData';\n            $searchElement = $element.parent();\n          }\n          if (match[2] === '?') {\n            optional = true;\n          }\n\n          value = null;\n\n          if (elementControllers && retrievalMethod === 'data') {\n            if (value = elementControllers[require]) {\n              value = value.instance;\n            }\n          }\n          value = value || $searchElement[retrievalMethod]('$' + require + 'Controller');\n\n          if (!value && !optional) {\n            throw $compileMinErr('ctreq',\n                \"Controller '{0}', required by directive '{1}', can't be found!\",\n                require, directiveName);\n          }\n          return value || null;\n        } else if (isArray(require)) {\n          value = [];\n          forEach(require, function(require) {\n            value.push(getControllers(directiveName, require, $element, elementControllers));\n          });\n        }\n        return value;\n      }\n\n\n      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n        var i, ii, linkFn, controller, isolateScope, elementControllers, transcludeFn, $element,\n            attrs;\n\n        if (compileNode === linkNode) {\n          attrs = templateAttrs;\n          $element = templateAttrs.$$element;\n        } else {\n          $element = jqLite(linkNode);\n          attrs = new Attributes($element, templateAttrs);\n        }\n\n        if (newIsolateScopeDirective) {\n          isolateScope = scope.$new(true);\n        }\n\n        if (boundTranscludeFn) {\n          // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`\n          // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`\n          transcludeFn = controllersBoundTransclude;\n          transcludeFn.$$boundTransclude = boundTranscludeFn;\n        }\n\n        if (controllerDirectives) {\n          // TODO: merge `controllers` and `elementControllers` into single object.\n          controllers = {};\n          elementControllers = {};\n          forEach(controllerDirectives, function(directive) {\n            var locals = {\n              $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n              $element: $element,\n              $attrs: attrs,\n              $transclude: transcludeFn\n            }, controllerInstance;\n\n            controller = directive.controller;\n            if (controller == '@') {\n              controller = attrs[directive.name];\n            }\n\n            controllerInstance = $controller(controller, locals, true, directive.controllerAs);\n\n            // For directives with element transclusion the element is a comment,\n            // but jQuery .data doesn't support attaching data to comment nodes as it's hard to\n            // clean up (http://bugs.jquery.com/ticket/8335).\n            // Instead, we save the controllers for the element in a local hash and attach to .data\n            // later, once we have the actual element.\n            elementControllers[directive.name] = controllerInstance;\n            if (!hasElementTranscludeDirective) {\n              $element.data('$' + directive.name + 'Controller', controllerInstance.instance);\n            }\n\n            controllers[directive.name] = controllerInstance;\n          });\n        }\n\n        if (newIsolateScopeDirective) {\n          compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||\n              templateDirective === newIsolateScopeDirective.$$originalDirective)));\n          compile.$$addScopeClass($element, true);\n\n          var isolateScopeController = controllers && controllers[newIsolateScopeDirective.name];\n          var isolateBindingContext = isolateScope;\n          if (isolateScopeController && isolateScopeController.identifier &&\n              newIsolateScopeDirective.bindToController === true) {\n            isolateBindingContext = isolateScopeController.instance;\n          }\n\n          forEach(isolateScope.$$isolateBindings = newIsolateScopeDirective.$$isolateBindings, function(definition, scopeName) {\n            var attrName = definition.attrName,\n                optional = definition.optional,\n                mode = definition.mode, // @, =, or &\n                lastValue,\n                parentGet, parentSet, compare;\n\n            switch (mode) {\n\n              case '@':\n                attrs.$observe(attrName, function(value) {\n                  isolateBindingContext[scopeName] = value;\n                });\n                attrs.$$observers[attrName].$$scope = scope;\n                if (attrs[attrName]) {\n                  // If the attribute has been provided then we trigger an interpolation to ensure\n                  // the value is there for use in the link fn\n                  isolateBindingContext[scopeName] = $interpolate(attrs[attrName])(scope);\n                }\n                break;\n\n              case '=':\n                if (optional && !attrs[attrName]) {\n                  return;\n                }\n                parentGet = $parse(attrs[attrName]);\n                if (parentGet.literal) {\n                  compare = equals;\n                } else {\n                  compare = function(a, b) { return a === b || (a !== a && b !== b); };\n                }\n                parentSet = parentGet.assign || function() {\n                  // reset the change, or we will throw this exception on every $digest\n                  lastValue = isolateBindingContext[scopeName] = parentGet(scope);\n                  throw $compileMinErr('nonassign',\n                      \"Expression '{0}' used with directive '{1}' is non-assignable!\",\n                      attrs[attrName], newIsolateScopeDirective.name);\n                };\n                lastValue = isolateBindingContext[scopeName] = parentGet(scope);\n                var parentValueWatch = function parentValueWatch(parentValue) {\n                  if (!compare(parentValue, isolateBindingContext[scopeName])) {\n                    // we are out of sync and need to copy\n                    if (!compare(parentValue, lastValue)) {\n                      // parent changed and it has precedence\n                      isolateBindingContext[scopeName] = parentValue;\n                    } else {\n                      // if the parent can be assigned then do so\n                      parentSet(scope, parentValue = isolateBindingContext[scopeName]);\n                    }\n                  }\n                  return lastValue = parentValue;\n                };\n                parentValueWatch.$stateful = true;\n                var unwatch;\n                if (definition.collection) {\n                  unwatch = scope.$watchCollection(attrs[attrName], parentValueWatch);\n                } else {\n                  unwatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);\n                }\n                isolateScope.$on('$destroy', unwatch);\n                break;\n\n              case '&':\n                parentGet = $parse(attrs[attrName]);\n                isolateBindingContext[scopeName] = function(locals) {\n                  return parentGet(scope, locals);\n                };\n                break;\n            }\n          });\n        }\n        if (controllers) {\n          forEach(controllers, function(controller) {\n            controller();\n          });\n          controllers = null;\n        }\n\n        // PRELINKING\n        for (i = 0, ii = preLinkFns.length; i < ii; i++) {\n          linkFn = preLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // RECURSION\n        // We only pass the isolate scope, if the isolate directive has a template,\n        // otherwise the child elements do not belong to the isolate directive.\n        var scopeToChild = scope;\n        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n          scopeToChild = isolateScope;\n        }\n        childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n\n        // POSTLINKING\n        for (i = postLinkFns.length - 1; i >= 0; i--) {\n          linkFn = postLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // This is the function that is injected as `$transclude`.\n        // Note: all arguments are optional!\n        function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement) {\n          var transcludeControllers;\n\n          // No scope passed in:\n          if (!isScope(scope)) {\n            futureParentElement = cloneAttachFn;\n            cloneAttachFn = scope;\n            scope = undefined;\n          }\n\n          if (hasElementTranscludeDirective) {\n            transcludeControllers = elementControllers;\n          }\n          if (!futureParentElement) {\n            futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;\n          }\n          return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n        }\n      }\n    }\n\n    function markDirectivesAsIsolate(directives) {\n      // mark all directives as needing isolate scope.\n      for (var j = 0, jj = directives.length; j < jj; j++) {\n        directives[j] = inherit(directives[j], {$$isolateScope: true});\n      }\n    }\n\n    /**\n     * looks up the directive and decorates it with exception handling and proper parameters. We\n     * call this the boundDirective.\n     *\n     * @param {string} name name of the directive to look up.\n     * @param {string} location The directive must be found in specific format.\n     *   String containing any of theses characters:\n     *\n     *   * `E`: element name\n     *   * `A': attribute\n     *   * `C`: class\n     *   * `M`: comment\n     * @returns {boolean} true if directive was added.\n     */\n    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n                          endAttrName) {\n      if (name === ignoreDirective) return null;\n      var match = null;\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          try {\n            directive = directives[i];\n            if ((maxPriority === undefined || maxPriority > directive.priority) &&\n                 directive.restrict.indexOf(location) != -1) {\n              if (startAttrName) {\n                directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n              }\n              tDirectives.push(directive);\n              match = directive;\n            }\n          } catch (e) { $exceptionHandler(e); }\n        }\n      }\n      return match;\n    }\n\n\n    /**\n     * looks up the directive and returns true if it is a multi-element directive,\n     * and therefore requires DOM nodes between -start and -end markers to be grouped\n     * together.\n     *\n     * @param {string} name name of the directive to look up.\n     * @returns true if directive was registered as multi-element.\n     */\n    function directiveIsMultiElement(name) {\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if (directive.multiElement) {\n            return true;\n          }\n        }\n      }\n      return false;\n    }\n\n    /**\n     * When the element is replaced with HTML template then the new attributes\n     * on the template need to be merged with the existing attributes in the DOM.\n     * The desired effect is to have both of the attributes present.\n     *\n     * @param {object} dst destination attributes (original DOM)\n     * @param {object} src source attributes (from the directive template)\n     */\n    function mergeTemplateAttributes(dst, src) {\n      var srcAttr = src.$attr,\n          dstAttr = dst.$attr,\n          $element = dst.$$element;\n\n      // reapply the old attributes to the new element\n      forEach(dst, function(value, key) {\n        if (key.charAt(0) != '$') {\n          if (src[key] && src[key] !== value) {\n            value += (key === 'style' ? ';' : ' ') + src[key];\n          }\n          dst.$set(key, value, true, srcAttr[key]);\n        }\n      });\n\n      // copy the new attributes on the old attrs object\n      forEach(src, function(value, key) {\n        if (key == 'class') {\n          safeAddClass($element, value);\n          dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;\n        } else if (key == 'style') {\n          $element.attr('style', $element.attr('style') + ';' + value);\n          dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value;\n          // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n          // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n          // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n        } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {\n          dst[key] = value;\n          dstAttr[key] = srcAttr[key];\n        }\n      });\n    }\n\n\n    function compileTemplateUrl(directives, $compileNode, tAttrs,\n        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n      var linkQueue = [],\n          afterTemplateNodeLinkFn,\n          afterTemplateChildLinkFn,\n          beforeTemplateCompileNode = $compileNode[0],\n          origAsyncDirective = directives.shift(),\n          derivedSyncDirective = inherit(origAsyncDirective, {\n            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n          }),\n          templateUrl = (isFunction(origAsyncDirective.templateUrl))\n              ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n              : origAsyncDirective.templateUrl,\n          templateNamespace = origAsyncDirective.templateNamespace;\n\n      $compileNode.empty();\n\n      $templateRequest(templateUrl)\n        .then(function(content) {\n          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n          content = denormalizeTemplate(content);\n\n          if (origAsyncDirective.replace) {\n            if (jqLiteIsTextNode(content)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(templateNamespace, trim(content)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  \"Template for directive '{0}' must have exactly one root element. {1}\",\n                  origAsyncDirective.name, templateUrl);\n            }\n\n            tempTemplateAttrs = {$attr: {}};\n            replaceWith($rootElement, $compileNode, compileNode);\n            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n            if (isObject(origAsyncDirective.scope)) {\n              markDirectivesAsIsolate(templateDirectives);\n            }\n            directives = templateDirectives.concat(directives);\n            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n          } else {\n            compileNode = beforeTemplateCompileNode;\n            $compileNode.html(content);\n          }\n\n          directives.unshift(derivedSyncDirective);\n\n          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n              previousCompileContext);\n          forEach($rootElement, function(node, i) {\n            if (node == compileNode) {\n              $rootElement[i] = $compileNode[0];\n            }\n          });\n          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n          while (linkQueue.length) {\n            var scope = linkQueue.shift(),\n                beforeTemplateLinkNode = linkQueue.shift(),\n                linkRootElement = linkQueue.shift(),\n                boundTranscludeFn = linkQueue.shift(),\n                linkNode = $compileNode[0];\n\n            if (scope.$$destroyed) continue;\n\n            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n              var oldClasses = beforeTemplateLinkNode.className;\n\n              if (!(previousCompileContext.hasElementTranscludeDirective &&\n                  origAsyncDirective.replace)) {\n                // it was cloned therefore we have to clone as well.\n                linkNode = jqLiteClone(compileNode);\n              }\n              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n              // Copy in CSS classes from original node\n              safeAddClass(jqLite(linkNode), oldClasses);\n            }\n            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n            } else {\n              childBoundTranscludeFn = boundTranscludeFn;\n            }\n            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n              childBoundTranscludeFn);\n          }\n          linkQueue = null;\n        });\n\n      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n        var childBoundTranscludeFn = boundTranscludeFn;\n        if (scope.$$destroyed) return;\n        if (linkQueue) {\n          linkQueue.push(scope,\n                         node,\n                         rootElement,\n                         childBoundTranscludeFn);\n        } else {\n          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n          }\n          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n        }\n      };\n    }\n\n\n    /**\n     * Sorting function for bound directives.\n     */\n    function byPriority(a, b) {\n      var diff = b.priority - a.priority;\n      if (diff !== 0) return diff;\n      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n      return a.index - b.index;\n    }\n\n\n    function assertNoDuplicate(what, previousDirective, directive, element) {\n      if (previousDirective) {\n        throw $compileMinErr('multidir', 'Multiple directives [{0}, {1}] asking for {2} on: {3}',\n            previousDirective.name, directive.name, what, startingTag(element));\n      }\n    }\n\n\n    function addTextInterpolateDirective(directives, text) {\n      var interpolateFn = $interpolate(text, true);\n      if (interpolateFn) {\n        directives.push({\n          priority: 0,\n          compile: function textInterpolateCompileFn(templateNode) {\n            var templateNodeParent = templateNode.parent(),\n                hasCompileParent = !!templateNodeParent.length;\n\n            // When transcluding a template that has bindings in the root\n            // we don't have a parent and thus need to add the class during linking fn.\n            if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);\n\n            return function textInterpolateLinkFn(scope, node) {\n              var parent = node.parent();\n              if (!hasCompileParent) compile.$$addBindingClass(parent);\n              compile.$$addBindingInfo(parent, interpolateFn.expressions);\n              scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n                node[0].nodeValue = value;\n              });\n            };\n          }\n        });\n      }\n    }\n\n\n    function wrapTemplate(type, template) {\n      type = lowercase(type || 'html');\n      switch (type) {\n      case 'svg':\n      case 'math':\n        var wrapper = document.createElement('div');\n        wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>';\n        return wrapper.childNodes[0].childNodes;\n      default:\n        return template;\n      }\n    }\n\n\n    function getTrustedContext(node, attrNormalizedName) {\n      if (attrNormalizedName == \"srcdoc\") {\n        return $sce.HTML;\n      }\n      var tag = nodeName_(node);\n      // maction[xlink:href] can source SVG.  It's not limited to <maction>.\n      if (attrNormalizedName == \"xlinkHref\" ||\n          (tag == \"form\" && attrNormalizedName == \"action\") ||\n          (tag != \"img\" && (attrNormalizedName == \"src\" ||\n                            attrNormalizedName == \"ngSrc\"))) {\n        return $sce.RESOURCE_URL;\n      }\n    }\n\n\n    function addAttrInterpolateDirective(node, directives, value, name, allOrNothing) {\n      var trustedContext = getTrustedContext(node, name);\n      allOrNothing = ALL_OR_NOTHING_ATTRS[name] || allOrNothing;\n\n      var interpolateFn = $interpolate(value, true, trustedContext, allOrNothing);\n\n      // no interpolation found -> ignore\n      if (!interpolateFn) return;\n\n\n      if (name === \"multiple\" && nodeName_(node) === \"select\") {\n        throw $compileMinErr(\"selmulti\",\n            \"Binding to the 'multiple' attribute is not supported. Element: {0}\",\n            startingTag(node));\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function() {\n            return {\n              pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n                var $$observers = (attr.$$observers || (attr.$$observers = {}));\n\n                if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n                  throw $compileMinErr('nodomevents',\n                      \"Interpolations for HTML DOM event attributes are disallowed.  Please use the \" +\n                          \"ng- versions (such as ng-click instead of onclick) instead.\");\n                }\n\n                // If the attribute has changed since last $interpolate()ed\n                var newValue = attr[name];\n                if (newValue !== value) {\n                  // we need to interpolate again since the attribute value has been updated\n                  // (e.g. by another directive's compile function)\n                  // ensure unset/empty values make interpolateFn falsy\n                  interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);\n                  value = newValue;\n                }\n\n                // if attribute was updated so that there is no interpolation going on we don't want to\n                // register any observers\n                if (!interpolateFn) return;\n\n                // initialize attr object so that it's ready in case we need the value for isolate\n                // scope initialization, otherwise the value would not be available from isolate\n                // directive's linking fn during linking phase\n                attr[name] = interpolateFn(scope);\n\n                ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n                (attr.$$observers && attr.$$observers[name].$$scope || scope).\n                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n                    //special case for class attribute addition + removal\n                    //so that class changes can tap into the animation\n                    //hooks provided by the $animate service. Be sure to\n                    //skip animations when the first digest occurs (when\n                    //both the new and the old values are the same) since\n                    //the CSS classes are the non-interpolated values\n                    if (name === 'class' && newValue != oldValue) {\n                      attr.$updateClass(newValue, oldValue);\n                    } else {\n                      attr.$set(name, newValue);\n                    }\n                  });\n              }\n            };\n          }\n      });\n    }\n\n\n    /**\n     * This is a special jqLite.replaceWith, which can replace items which\n     * have no parents, provided that the containing jqLite collection is provided.\n     *\n     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n     *                               in the root of the tree.\n     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n     *                                  the shell, but replace its DOM node reference.\n     * @param {Node} newNode The new DOM node.\n     */\n    function replaceWith($rootElement, elementsToRemove, newNode) {\n      var firstElementToRemove = elementsToRemove[0],\n          removeCount = elementsToRemove.length,\n          parent = firstElementToRemove.parentNode,\n          i, ii;\n\n      if ($rootElement) {\n        for (i = 0, ii = $rootElement.length; i < ii; i++) {\n          if ($rootElement[i] == firstElementToRemove) {\n            $rootElement[i++] = newNode;\n            for (var j = i, j2 = j + removeCount - 1,\n                     jj = $rootElement.length;\n                 j < jj; j++, j2++) {\n              if (j2 < jj) {\n                $rootElement[j] = $rootElement[j2];\n              } else {\n                delete $rootElement[j];\n              }\n            }\n            $rootElement.length -= removeCount - 1;\n\n            // If the replaced element is also the jQuery .context then replace it\n            // .context is a deprecated jQuery api, so we should set it only when jQuery set it\n            // http://api.jquery.com/context/\n            if ($rootElement.context === firstElementToRemove) {\n              $rootElement.context = newNode;\n            }\n            break;\n          }\n        }\n      }\n\n      if (parent) {\n        parent.replaceChild(newNode, firstElementToRemove);\n      }\n\n      // TODO(perf): what's this document fragment for? is it needed? can we at least reuse it?\n      var fragment = document.createDocumentFragment();\n      fragment.appendChild(firstElementToRemove);\n\n      // Copy over user data (that includes Angular's $scope etc.). Don't copy private\n      // data here because there's no public interface in jQuery to do that and copying over\n      // event listeners (which is the main use of private data) wouldn't work anyway.\n      jqLite(newNode).data(jqLite(firstElementToRemove).data());\n\n      // Remove data of the replaced element. We cannot just call .remove()\n      // on the element it since that would deallocate scope that is needed\n      // for the new node. Instead, remove the data \"manually\".\n      if (!jQuery) {\n        delete jqLite.cache[firstElementToRemove[jqLite.expando]];\n      } else {\n        // jQuery 2.x doesn't expose the data storage. Use jQuery.cleanData to clean up after\n        // the replaced element. The cleanData version monkey-patched by Angular would cause\n        // the scope to be trashed and we do need the very same scope to work with the new\n        // element. However, we cannot just cache the non-patched version and use it here as\n        // that would break if another library patches the method after Angular does (one\n        // example is jQuery UI). Instead, set a flag indicating scope destroying should be\n        // skipped this one time.\n        skipDestroyOnNextJQueryCleanData = true;\n        jQuery.cleanData([firstElementToRemove]);\n      }\n\n      for (var k = 1, kk = elementsToRemove.length; k < kk; k++) {\n        var element = elementsToRemove[k];\n        jqLite(element).remove(); // must do this way to clean up expando\n        fragment.appendChild(element);\n        delete elementsToRemove[k];\n      }\n\n      elementsToRemove[0] = newNode;\n      elementsToRemove.length = 1;\n    }\n\n\n    function cloneAndAnnotateFn(fn, annotation) {\n      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n    }\n\n\n    function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {\n      try {\n        linkFn(scope, $element, attrs, controllers, transcludeFn);\n      } catch (e) {\n        $exceptionHandler(e, startingTag($element));\n      }\n    }\n  }];\n}\n\nvar PREFIX_REGEXP = /^((?:x|data)[\\:\\-_])/i;\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n  return camelCase(name.replace(PREFIX_REGEXP, ''));\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in Angular:\n *\n * ```\n *    <span ng:bind=\"a\" ng-bind=\"a\" data-ng-bind=\"a\" x-ng-bind=\"a\">\n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n *          property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n  /* angular.Scope */ scope,\n  /* NodeList */ nodeList,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction directiveLinkingFn(\n  /* nodesetLinkingFn */ nodesetLinkingFn,\n  /* angular.Scope */ scope,\n  /* Node */ node,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction tokenDifference(str1, str2) {\n  var values = '',\n      tokens1 = str1.split(/\\s+/),\n      tokens2 = str2.split(/\\s+/);\n\n  outer:\n  for (var i = 0; i < tokens1.length; i++) {\n    var token = tokens1[i];\n    for (var j = 0; j < tokens2.length; j++) {\n      if (token == tokens2[j]) continue outer;\n    }\n    values += (values.length > 0 ? ' ' : '') + token;\n  }\n  return values;\n}\n\nfunction removeComments(jqNodes) {\n  jqNodes = jqLite(jqNodes);\n  var i = jqNodes.length;\n\n  if (i <= 1) {\n    return jqNodes;\n  }\n\n  while (i--) {\n    var node = jqNodes[i];\n    if (node.nodeType === NODE_TYPE_COMMENT) {\n      splice.call(jqNodes, i, 1);\n    }\n  }\n  return jqNodes;\n}\n\nvar $controllerMinErr = minErr('$controller');\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @description\n * The {@link ng.$controller $controller service} is used by Angular to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n  var controllers = {},\n      globals = false,\n      CNTRL_REG = /^(\\S+)(\\s+as\\s+(\\w+))?$/;\n\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#register\n   * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n   *    the names and the values are the constructors.\n   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n   *    annotations in the array notation).\n   */\n  this.register = function(name, constructor) {\n    assertNotHasOwnProperty(name, 'controller');\n    if (isObject(name)) {\n      extend(controllers, name);\n    } else {\n      controllers[name] = constructor;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#allowGlobals\n   * @description If called, allows `$controller` to find controller constructors on `window`\n   */\n  this.allowGlobals = function() {\n    globals = true;\n  };\n\n\n  this.$get = ['$injector', '$window', function($injector, $window) {\n\n    /**\n     * @ngdoc service\n     * @name $controller\n     * @requires $injector\n     *\n     * @param {Function|string} constructor If called with a function then it's considered to be the\n     *    controller constructor function. Otherwise it's considered to be a string which is used\n     *    to retrieve the controller constructor using the following steps:\n     *\n     *    * check if a controller with given name is registered via `$controllerProvider`\n     *    * check if evaluating the string on the current scope returns a constructor\n     *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n     *      `window` object (not recommended)\n     *\n     *    The string can use the `controller as property` syntax, where the controller instance is published\n     *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n     *    to work correctly.\n     *\n     * @param {Object} locals Injection locals for Controller.\n     * @return {Object} Instance of given controller.\n     *\n     * @description\n     * `$controller` service is responsible for instantiating controllers.\n     *\n     * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n     */\n    return function(expression, locals, later, ident) {\n      // PRIVATE API:\n      //   param `later` --- indicates that the controller's constructor is invoked at a later time.\n      //                     If true, $controller will allocate the object with the correct\n      //                     prototype chain, but will not invoke the controller until a returned\n      //                     callback is invoked.\n      //   param `ident` --- An optional label which overrides the label parsed from the controller\n      //                     expression, if any.\n      var instance, match, constructor, identifier;\n      later = later === true;\n      if (ident && isString(ident)) {\n        identifier = ident;\n      }\n\n      if (isString(expression)) {\n        match = expression.match(CNTRL_REG);\n        if (!match) {\n          throw $controllerMinErr('ctrlfmt',\n            \"Badly formed controller string '{0}'. \" +\n            \"Must match `__name__ as __id__` or `__name__`.\", expression);\n        }\n        constructor = match[1],\n        identifier = identifier || match[3];\n        expression = controllers.hasOwnProperty(constructor)\n            ? controllers[constructor]\n            : getter(locals.$scope, constructor, true) ||\n                (globals ? getter($window, constructor, true) : undefined);\n\n        assertArgFn(expression, constructor, true);\n      }\n\n      if (later) {\n        // Instantiate controller later:\n        // This machinery is used to create an instance of the object before calling the\n        // controller's constructor itself.\n        //\n        // This allows properties to be added to the controller before the constructor is\n        // invoked. Primarily, this is used for isolate scope bindings in $compile.\n        //\n        // This feature is not intended for use by applications, and is thus not documented\n        // publicly.\n        // Object creation: http://jsperf.com/create-constructor/2\n        var controllerPrototype = (isArray(expression) ?\n          expression[expression.length - 1] : expression).prototype;\n        instance = Object.create(controllerPrototype || null);\n\n        if (identifier) {\n          addIdentifier(locals, identifier, instance, constructor || expression.name);\n        }\n\n        return extend(function() {\n          $injector.invoke(expression, instance, locals, constructor);\n          return instance;\n        }, {\n          instance: instance,\n          identifier: identifier\n        });\n      }\n\n      instance = $injector.instantiate(expression, locals, constructor);\n\n      if (identifier) {\n        addIdentifier(locals, identifier, instance, constructor || expression.name);\n      }\n\n      return instance;\n    };\n\n    function addIdentifier(locals, identifier, instance, name) {\n      if (!(locals && isObject(locals.$scope))) {\n        throw minErr('$controller')('noscp',\n          \"Cannot export controller '{0}' as '{1}'! No $scope object provided via `locals`.\",\n          name, identifier);\n      }\n\n      locals.$scope[identifier] = instance;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n   <example module=\"documentExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <p>$document title: <b ng-bind=\"title\"></b></p>\n         <p>window.document title: <b ng-bind=\"windowTitle\"></b></p>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('documentExample', [])\n         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {\n           $scope.title = $document[0].title;\n           $scope.windowTitle = angular.element(window.document)[0].title;\n         }]);\n     </file>\n   </example>\n */\nfunction $DocumentProvider() {\n  this.$get = ['$window', function(window) {\n    return jqLite(window.document);\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n * @requires ng.$log\n *\n * @description\n * Any uncaught exception in angular expressions is delegated to this service.\n * The default implementation simply delegates to `$log.error` which logs it into\n * the browser console.\n *\n * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by\n * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.\n *\n * ## Example:\n *\n * ```js\n *   angular.module('exceptionOverride', []).factory('$exceptionHandler', function() {\n *     return function(exception, cause) {\n *       exception.message += ' (caused by \"' + cause + '\")';\n *       throw exception;\n *     };\n *   });\n * ```\n *\n * This example will override the normal action of `$exceptionHandler`, to make angular\n * exceptions fail hard when they happen, instead of just logging to the console.\n *\n * <hr />\n * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`\n * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}\n * (unless executed during a digest).\n *\n * If you wish, you can manually delegate exceptions, e.g.\n * `try { ... } catch(e) { $exceptionHandler(e); }`\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause optional information about the context in which\n *       the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n  this.$get = ['$log', function($log) {\n    return function(exception, cause) {\n      $log.error.apply($log, arguments);\n    };\n  }];\n}\n\nvar APPLICATION_JSON = 'application/json';\nvar CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};\nvar JSON_START = /^\\[|^\\{(?!\\{)/;\nvar JSON_ENDS = {\n  '[': /]$/,\n  '{': /}$/\n};\nvar JSON_PROTECTION_PREFIX = /^\\)\\]\\}',?\\n/;\n\nfunction defaultHttpResponseTransform(data, headers) {\n  if (isString(data)) {\n    // Strip json vulnerability protection prefix and trim whitespace\n    var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();\n\n    if (tempData) {\n      var contentType = headers('Content-Type');\n      if ((contentType && (contentType.indexOf(APPLICATION_JSON) === 0)) || isJsonLike(tempData)) {\n        data = fromJson(tempData);\n      }\n    }\n  }\n\n  return data;\n}\n\nfunction isJsonLike(str) {\n    var jsonStart = str.match(JSON_START);\n    return jsonStart && JSON_ENDS[jsonStart[0]].test(str);\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n  var parsed = createMap(), key, val, i;\n\n  if (!headers) return parsed;\n\n  forEach(headers.split('\\n'), function(line) {\n    i = line.indexOf(':');\n    key = lowercase(trim(line.substr(0, i)));\n    val = trim(line.substr(i + 1));\n\n    if (key) {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n *   - if called with single an argument returns a single header value or null\n *   - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n  var headersObj = isObject(headers) ? headers : undefined;\n\n  return function(name) {\n    if (!headersObj) headersObj =  parseHeaders(headers);\n\n    if (name) {\n      var value = headersObj[lowercase(name)];\n      if (value === void 0) {\n        value = null;\n      }\n      return value;\n    }\n\n    return headersObj;\n  };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers HTTP headers getter fn.\n * @param {number} status HTTP status code of the response.\n * @param {(Function|Array.<Function>)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, status, fns) {\n  if (isFunction(fns))\n    return fns(data, headers, status);\n\n  forEach(fns, function(fn) {\n    data = fn(data, headers, status);\n  });\n\n  return data;\n}\n\n\nfunction isSuccess(status) {\n  return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n * */\nfunction $HttpProvider() {\n  /**\n   * @ngdoc property\n   * @name $httpProvider#defaults\n   * @description\n   *\n   * Object containing default values for all {@link ng.$http $http} requests.\n   *\n   * - **`defaults.cache`** - {Object} - an object built with {@link ng.$cacheFactory `$cacheFactory`}\n   * that will provide the cache for all requests who set their `cache` property to `true`.\n   * If you set the `default.cache = false` then only requests that specify their own custom\n   * cache object will be cached. See {@link $http#caching $http Caching} for more information.\n   *\n   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n   * Defaults value is `'XSRF-TOKEN'`.\n   *\n   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n   *\n   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n   * setting default headers.\n   *     - **`defaults.headers.common`**\n   *     - **`defaults.headers.post`**\n   *     - **`defaults.headers.put`**\n   *     - **`defaults.headers.patch`**\n   *\n   **/\n  var defaults = this.defaults = {\n    // transform incoming response data\n    transformResponse: [defaultHttpResponseTransform],\n\n    // transform outgoing request data\n    transformRequest: [function(d) {\n      return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;\n    }],\n\n    // default headers\n    headers: {\n      common: {\n        'Accept': 'application/json, text/plain, */*'\n      },\n      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n    },\n\n    xsrfCookieName: 'XSRF-TOKEN',\n    xsrfHeaderName: 'X-XSRF-TOKEN'\n  };\n\n  var useApplyAsync = false;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useApplyAsync\n   * @description\n   *\n   * Configure $http service to combine processing of multiple http responses received at around\n   * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in\n   * significant performance improvement for bigger applications that make many HTTP requests\n   * concurrently (common during application bootstrap).\n   *\n   * Defaults to false. If no value is specifed, returns the current configured value.\n   *\n   * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred\n   *    \"apply\" on the next tick, giving time for subsequent requests in a roughly ~10ms window\n   *    to load and share the same digest cycle.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   **/\n  this.useApplyAsync = function(value) {\n    if (isDefined(value)) {\n      useApplyAsync = !!value;\n      return this;\n    }\n    return useApplyAsync;\n  };\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#interceptors\n   * @description\n   *\n   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n   * pre-processing of request or postprocessing of responses.\n   *\n   * These service factories are ordered by request, i.e. they are applied in the same order as the\n   * array, on request, but reverse order, on response.\n   *\n   * {@link ng.$http#interceptors Interceptors detailed info}\n   **/\n  var interceptorFactories = this.interceptors = [];\n\n  this.$get = ['$httpBackend', '$browser', '$cacheFactory', '$rootScope', '$q', '$injector',\n      function($httpBackend, $browser, $cacheFactory, $rootScope, $q, $injector) {\n\n    var defaultCache = $cacheFactory('$http');\n\n    /**\n     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n     * The reversal is needed so that we can build up the interception chain around the\n     * server request.\n     */\n    var reversedInterceptors = [];\n\n    forEach(interceptorFactories, function(interceptorFactory) {\n      reversedInterceptors.unshift(isString(interceptorFactory)\n          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n    });\n\n    /**\n     * @ngdoc service\n     * @kind function\n     * @name $http\n     * @requires ng.$httpBackend\n     * @requires $cacheFactory\n     * @requires $rootScope\n     * @requires $q\n     * @requires $injector\n     *\n     * @description\n     * The `$http` service is a core Angular service that facilitates communication with the remote\n     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n     *\n     * For unit testing applications that use `$http` service, see\n     * {@link ngMock.$httpBackend $httpBackend mock}.\n     *\n     * For a higher level of abstraction, please check out the {@link ngResource.$resource\n     * $resource} service.\n     *\n     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n     * it is important to familiarize yourself with these APIs and the guarantees they provide.\n     *\n     *\n     * ## General usage\n     * The `$http` service is a function which takes a single argument — a configuration object —\n     * that is used to generate an HTTP request and returns  a {@link ng.$q promise}\n     * with two $http specific methods: `success` and `error`.\n     *\n     * ```js\n     *   // Simple GET request example :\n     *   $http.get('/someUrl').\n     *     success(function(data, status, headers, config) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }).\n     *     error(function(data, status, headers, config) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     * ```js\n     *   // Simple POST request example (passing data) :\n     *   $http.post('/someUrl', {msg:'hello word!'}).\n     *     success(function(data, status, headers, config) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }).\n     *     error(function(data, status, headers, config) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     *\n     * Since the returned value of calling the $http function is a `promise`, you can also use\n     * the `then` method to register callbacks, and these callbacks will receive a single argument –\n     * an object representing the response. See the API signature and type info below for more\n     * details.\n     *\n     * A response status code between 200 and 299 is considered a success status and\n     * will result in the success callback being called. Note that if the response is a redirect,\n     * XMLHttpRequest will transparently follow it, meaning that the error callback will not be\n     * called for such responses.\n     *\n     * ## Writing Unit Tests that use $http\n     * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n     * request using trained responses.\n     *\n     * ```\n     * $httpBackend.expectGET(...);\n     * $http.get(...);\n     * $httpBackend.flush();\n     * ```\n     *\n     * ## Shortcut methods\n     *\n     * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n     * request data must be passed in for POST/PUT requests.\n     *\n     * ```js\n     *   $http.get('/someUrl').success(successCallback);\n     *   $http.post('/someUrl', data).success(successCallback);\n     * ```\n     *\n     * Complete list of shortcut methods:\n     *\n     * - {@link ng.$http#get $http.get}\n     * - {@link ng.$http#head $http.head}\n     * - {@link ng.$http#post $http.post}\n     * - {@link ng.$http#put $http.put}\n     * - {@link ng.$http#delete $http.delete}\n     * - {@link ng.$http#jsonp $http.jsonp}\n     * - {@link ng.$http#patch $http.patch}\n     *\n     *\n     * ## Setting HTTP Headers\n     *\n     * The $http service will automatically add certain HTTP headers to all requests. These defaults\n     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n     * object, which currently contains this default configuration:\n     *\n     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n     *   - `Accept: application/json, text/plain, * / *`\n     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n     *   - `Content-Type: application/json`\n     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n     *   - `Content-Type: application/json`\n     *\n     * To add or overwrite these defaults, simply add or remove a property from these configuration\n     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n     * with the lowercased HTTP method name as the key, e.g.\n     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }.\n     *\n     * The defaults can also be set at runtime via the `$http.defaults` object in the same\n     * fashion. For example:\n     *\n     * ```\n     * module.run(function($http) {\n     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w'\n     * });\n     * ```\n     *\n     * In addition, you can supply a `headers` property in the config object passed when\n     * calling `$http(config)`, which overrides the defaults without changing them globally.\n     *\n     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n     * Use the `headers` property, setting the desired header to `undefined`. For example:\n     *\n     * ```js\n     * var req = {\n     *  method: 'POST',\n     *  url: 'http://example.com',\n     *  headers: {\n     *    'Content-Type': undefined\n     *  },\n     *  data: { test: 'test' }\n     * }\n     *\n     * $http(req).success(function(){...}).error(function(){...});\n     * ```\n     *\n     * ## Transforming Requests and Responses\n     *\n     * Both requests and responses can be transformed using transformation functions: `transformRequest`\n     * and `transformResponse`. These properties can be a single function that returns\n     * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,\n     * which allows you to `push` or `unshift` a new transformation function into the transformation chain.\n     *\n     * ### Default Transformations\n     *\n     * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and\n     * `defaults.transformResponse` properties. If a request does not provide its own transformations\n     * then these will be applied.\n     *\n     * You can augment or replace the default transformations by modifying these properties by adding to or\n     * replacing the array.\n     *\n     * Angular provides the following default transformations:\n     *\n     * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`):\n     *\n     * - If the `data` property of the request configuration object contains an object, serialize it\n     *   into JSON format.\n     *\n     * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`):\n     *\n     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).\n     *  - If JSON response is detected, deserialize it using a JSON parser.\n     *\n     *\n     * ### Overriding the Default Transformations Per Request\n     *\n     * If you wish override the request/response transformations only for a single request then provide\n     * `transformRequest` and/or `transformResponse` properties on the configuration object passed\n     * into `$http`.\n     *\n     * Note that if you provide these properties on the config object the default transformations will be\n     * overwritten. If you wish to augment the default transformations then you must include them in your\n     * local transformation array.\n     *\n     * The following code demonstrates adding a new response transformation to be run after the default response\n     * transformations have been run.\n     *\n     * ```js\n     * function appendTransform(defaults, transform) {\n     *\n     *   // We can't guarantee that the default transformation is an array\n     *   defaults = angular.isArray(defaults) ? defaults : [defaults];\n     *\n     *   // Append the new transformation to the defaults\n     *   return defaults.concat(transform);\n     * }\n     *\n     * $http({\n     *   url: '...',\n     *   method: 'GET',\n     *   transformResponse: appendTransform($http.defaults.transformResponse, function(value) {\n     *     return doTransform(value);\n     *   })\n     * });\n     * ```\n     *\n     *\n     * ## Caching\n     *\n     * To enable caching, set the request configuration `cache` property to `true` (to use default\n     * cache) or to a custom cache object (built with {@link ng.$cacheFactory `$cacheFactory`}).\n     * When the cache is enabled, `$http` stores the response from the server in the specified\n     * cache. The next time the same request is made, the response is served from the cache without\n     * sending a request to the server.\n     *\n     * Note that even if the response is served from cache, delivery of the data is asynchronous in\n     * the same way that real requests are.\n     *\n     * If there are multiple GET requests for the same URL that should be cached using the same\n     * cache, but the cache is not populated yet, only one request to the server will be made and\n     * the remaining requests will be fulfilled using the response from the first request.\n     *\n     * You can change the default cache to a new object (built with\n     * {@link ng.$cacheFactory `$cacheFactory`}) by updating the\n     * {@link ng.$http#defaults `$http.defaults.cache`} property. All requests who set\n     * their `cache` property to `true` will now use this cache object.\n     *\n     * If you set the default cache to `false` then only requests that specify their own custom\n     * cache object will be cached.\n     *\n     * ## Interceptors\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication, or any kind of synchronous or\n     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n     * able to intercept requests before they are handed to the server and\n     * responses before they are handed over to the application code that\n     * initiated these requests. The interceptors leverage the {@link ng.$q\n     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n     *\n     * The interceptors are service factories that are registered with the `$httpProvider` by\n     * adding them to the `$httpProvider.interceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor.\n     *\n     * There are two kinds of interceptors (and two kinds of rejection interceptors):\n     *\n     *   * `request`: interceptors get called with a http `config` object. The function is free to\n     *     modify the `config` object or create a new one. The function needs to return the `config`\n     *     object directly, or a promise containing the `config` or a new `config` object.\n     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *   * `response`: interceptors get called with http `response` object. The function is free to\n     *     modify the `response` object or create a new one. The function needs to return the `response`\n     *     object directly, or as a promise containing the `response` or a new `response` object.\n     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return {\n     *       // optional method\n     *       'request': function(config) {\n     *         // do something on success\n     *         return config;\n     *       },\n     *\n     *       // optional method\n     *      'requestError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       },\n     *\n     *\n     *\n     *       // optional method\n     *       'response': function(response) {\n     *         // do something on success\n     *         return response;\n     *       },\n     *\n     *       // optional method\n     *      'responseError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       }\n     *     };\n     *   });\n     *\n     *   $httpProvider.interceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // alternatively, register the interceptor via an anonymous factory\n     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n     *     return {\n     *      'request': function(config) {\n     *          // same as above\n     *       },\n     *\n     *       'response': function(response) {\n     *          // same as above\n     *       }\n     *     };\n     *   });\n     * ```\n     *\n     * ## Security Considerations\n     *\n     * When designing web applications, consider security threats from:\n     *\n     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n     *\n     * Both server and the client must cooperate in order to eliminate these threats. Angular comes\n     * pre-configured with strategies that address these issues, but for this to work backend server\n     * cooperation is required.\n     *\n     * ### JSON Vulnerability Protection\n     *\n     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * allows third party website to turn your JSON resource URL into\n     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n     * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n     * Angular will automatically strip the prefix before processing it as JSON.\n     *\n     * For example if your server needs to return:\n     * ```js\n     * ['one','two']\n     * ```\n     *\n     * which is vulnerable to attack, your server can return:\n     * ```js\n     * )]}',\n     * ['one','two']\n     * ```\n     *\n     * Angular will strip the prefix, before processing the JSON.\n     *\n     *\n     * ### Cross Site Request Forgery (XSRF) Protection\n     *\n     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is a technique by which\n     * an unauthorized site can gain your user's private data. Angular provides a mechanism\n     * to counter XSRF. When performing XHR requests, the $http service reads a token from a cookie\n     * (by default, `XSRF-TOKEN`) and sets it as an HTTP header (`X-XSRF-TOKEN`). Since only\n     * JavaScript that runs on your domain could read the cookie, your server can be assured that\n     * the XHR came from JavaScript running on your domain. The header will not be set for\n     * cross-domain requests.\n     *\n     * To take advantage of this, your server needs to set a token in a JavaScript readable session\n     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n     * server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure\n     * that only JavaScript running on your domain could have sent the request. The token must be\n     * unique for each user and must be verifiable by the server (to prevent the JavaScript from\n     * making up its own tokens). We recommend that the token is a digest of your site's\n     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)\n     * for added security.\n     *\n     * The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName\n     * properties of either $httpProvider.defaults at config-time, $http.defaults at run-time,\n     * or the per-request config object.\n     *\n     *\n     * @param {object} config Object describing the request to be made and how it should be\n     *    processed. The object has following properties:\n     *\n     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n     *    - **url** – `{string}` – Absolute or relative URL of the resource that is being requested.\n     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be turned\n     *      to `?key1=value1&key2=value2` after the url. If the value is not a string, it will be\n     *      JSONified.\n     *    - **data** – `{string|Object}` – Data to be sent as the request message data.\n     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing\n     *      HTTP headers to send to the server. If the return value of a function is null, the\n     *      header will not be sent.\n     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n     *    - **transformRequest** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      request body and headers and returns its transformed (typically serialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **transformResponse** –\n     *      `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      response body, headers and status and returns its transformed (typically deserialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **cache** – `{boolean|Cache}` – If true, a default $http cache will be used to cache the\n     *      GET request, otherwise if a cache instance built with\n     *      {@link ng.$cacheFactory $cacheFactory}, this cache will be used for\n     *      caching.\n     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n     *      that should abort the request when resolved.\n     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n     *      for more information.\n     *    - **responseType** - `{string}` - see\n     *      [requestType](https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest#responseType).\n     *\n     * @returns {HttpPromise} Returns a {@link ng.$q promise} object with the\n     *   standard `then` method and two http specific methods: `success` and `error`. The `then`\n     *   method takes two arguments a success and an error callback which will be called with a\n     *   response object. The `success` and `error` methods take a single argument - a function that\n     *   will be called when the request succeeds or fails respectively. The arguments passed into\n     *   these functions are destructured representation of the response object passed into the\n     *   `then` method. The response object has these properties:\n     *\n     *   - **data** – `{string|Object}` – The response body transformed with the transform\n     *     functions.\n     *   - **status** – `{number}` – HTTP status code of the response.\n     *   - **headers** – `{function([headerName])}` – Header getter function.\n     *   - **config** – `{Object}` – The configuration object that was used to generate the request.\n     *   - **statusText** – `{string}` – HTTP status text of the response.\n     *\n     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending\n     *   requests. This is primarily meant to be used for debugging purposes.\n     *\n     *\n     * @example\n<example module=\"httpExample\">\n<file name=\"index.html\">\n  <div ng-controller=\"FetchController\">\n    <select ng-model=\"method\">\n      <option>GET</option>\n      <option>JSONP</option>\n    </select>\n    <input type=\"text\" ng-model=\"url\" size=\"80\"/>\n    <button id=\"fetchbtn\" ng-click=\"fetch()\">fetch</button><br>\n    <button id=\"samplegetbtn\" ng-click=\"updateModel('GET', 'http-hello.html')\">Sample GET</button>\n    <button id=\"samplejsonpbtn\"\n      ng-click=\"updateModel('JSONP',\n                    'https://angularjs.org/greet.php?callback=JSON_CALLBACK&name=Super%20Hero')\">\n      Sample JSONP\n    </button>\n    <button id=\"invalidjsonpbtn\"\n      ng-click=\"updateModel('JSONP', 'https://angularjs.org/doesntexist&callback=JSON_CALLBACK')\">\n        Invalid JSONP\n      </button>\n    <pre>http status code: {{status}}</pre>\n    <pre>http response data: {{data}}</pre>\n  </div>\n</file>\n<file name=\"script.js\">\n  angular.module('httpExample', [])\n    .controller('FetchController', ['$scope', '$http', '$templateCache',\n      function($scope, $http, $templateCache) {\n        $scope.method = 'GET';\n        $scope.url = 'http-hello.html';\n\n        $scope.fetch = function() {\n          $scope.code = null;\n          $scope.response = null;\n\n          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).\n            success(function(data, status) {\n              $scope.status = status;\n              $scope.data = data;\n            }).\n            error(function(data, status) {\n              $scope.data = data || \"Request failed\";\n              $scope.status = status;\n          });\n        };\n\n        $scope.updateModel = function(method, url) {\n          $scope.method = method;\n          $scope.url = url;\n        };\n      }]);\n</file>\n<file name=\"http-hello.html\">\n  Hello, $http!\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  var status = element(by.binding('status'));\n  var data = element(by.binding('data'));\n  var fetchBtn = element(by.id('fetchbtn'));\n  var sampleGetBtn = element(by.id('samplegetbtn'));\n  var sampleJsonpBtn = element(by.id('samplejsonpbtn'));\n  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));\n\n  it('should make an xhr GET request', function() {\n    sampleGetBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('200');\n    expect(data.getText()).toMatch(/Hello, \\$http!/);\n  });\n\n// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185\n// it('should make a JSONP request to angularjs.org', function() {\n//   sampleJsonpBtn.click();\n//   fetchBtn.click();\n//   expect(status.getText()).toMatch('200');\n//   expect(data.getText()).toMatch(/Super Hero!/);\n// });\n\n  it('should make JSONP request to invalid URL and invoke the error handler',\n      function() {\n    invalidJsonpBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('0');\n    expect(data.getText()).toMatch('Request failed');\n  });\n</file>\n</example>\n     */\n    function $http(requestConfig) {\n\n      if (!angular.isObject(requestConfig)) {\n        throw minErr('$http')('badreq', 'Http request configuration must be an object.  Received: {0}', requestConfig);\n      }\n\n      var config = extend({\n        method: 'get',\n        transformRequest: defaults.transformRequest,\n        transformResponse: defaults.transformResponse\n      }, requestConfig);\n\n      config.headers = mergeHeaders(requestConfig);\n      config.method = uppercase(config.method);\n\n      var serverRequest = function(config) {\n        var headers = config.headers;\n        var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest);\n\n        // strip content-type if data is undefined\n        if (isUndefined(reqData)) {\n          forEach(headers, function(value, header) {\n            if (lowercase(header) === 'content-type') {\n                delete headers[header];\n            }\n          });\n        }\n\n        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {\n          config.withCredentials = defaults.withCredentials;\n        }\n\n        // send request\n        return sendReq(config, reqData).then(transformResponse, transformResponse);\n      };\n\n      var chain = [serverRequest, undefined];\n      var promise = $q.when(config);\n\n      // apply interceptors\n      forEach(reversedInterceptors, function(interceptor) {\n        if (interceptor.request || interceptor.requestError) {\n          chain.unshift(interceptor.request, interceptor.requestError);\n        }\n        if (interceptor.response || interceptor.responseError) {\n          chain.push(interceptor.response, interceptor.responseError);\n        }\n      });\n\n      while (chain.length) {\n        var thenFn = chain.shift();\n        var rejectFn = chain.shift();\n\n        promise = promise.then(thenFn, rejectFn);\n      }\n\n      promise.success = function(fn) {\n        assertArgFn(fn, 'fn');\n\n        promise.then(function(response) {\n          fn(response.data, response.status, response.headers, config);\n        });\n        return promise;\n      };\n\n      promise.error = function(fn) {\n        assertArgFn(fn, 'fn');\n\n        promise.then(null, function(response) {\n          fn(response.data, response.status, response.headers, config);\n        });\n        return promise;\n      };\n\n      return promise;\n\n      function transformResponse(response) {\n        // make a copy since the response must be cacheable\n        var resp = extend({}, response);\n        if (!response.data) {\n          resp.data = response.data;\n        } else {\n          resp.data = transformData(response.data, response.headers, response.status, config.transformResponse);\n        }\n        return (isSuccess(response.status))\n          ? resp\n          : $q.reject(resp);\n      }\n\n      function executeHeaderFns(headers) {\n        var headerContent, processedHeaders = {};\n\n        forEach(headers, function(headerFn, header) {\n          if (isFunction(headerFn)) {\n            headerContent = headerFn();\n            if (headerContent != null) {\n              processedHeaders[header] = headerContent;\n            }\n          } else {\n            processedHeaders[header] = headerFn;\n          }\n        });\n\n        return processedHeaders;\n      }\n\n      function mergeHeaders(config) {\n        var defHeaders = defaults.headers,\n            reqHeaders = extend({}, config.headers),\n            defHeaderName, lowercaseDefHeaderName, reqHeaderName;\n\n        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);\n\n        // using for-in instead of forEach to avoid unecessary iteration after header has been found\n        defaultHeadersIteration:\n        for (defHeaderName in defHeaders) {\n          lowercaseDefHeaderName = lowercase(defHeaderName);\n\n          for (reqHeaderName in reqHeaders) {\n            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {\n              continue defaultHeadersIteration;\n            }\n          }\n\n          reqHeaders[defHeaderName] = defHeaders[defHeaderName];\n        }\n\n        // execute if header value is a function for merged headers\n        return executeHeaderFns(reqHeaders);\n      }\n    }\n\n    $http.pendingRequests = [];\n\n    /**\n     * @ngdoc method\n     * @name $http#get\n     *\n     * @description\n     * Shortcut method to perform `GET` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#delete\n     *\n     * @description\n     * Shortcut method to perform `DELETE` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#head\n     *\n     * @description\n     * Shortcut method to perform `HEAD` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#jsonp\n     *\n     * @description\n     * Shortcut method to perform `JSONP` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request.\n     *                     The name of the callback should be the string `JSON_CALLBACK`.\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n    createShortMethods('get', 'delete', 'head', 'jsonp');\n\n    /**\n     * @ngdoc method\n     * @name $http#post\n     *\n     * @description\n     * Shortcut method to perform `POST` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#put\n     *\n     * @description\n     * Shortcut method to perform `PUT` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n     /**\n      * @ngdoc method\n      * @name $http#patch\n      *\n      * @description\n      * Shortcut method to perform `PATCH` request.\n      *\n      * @param {string} url Relative or absolute URL specifying the destination of the request\n      * @param {*} data Request content\n      * @param {Object=} config Optional configuration object\n      * @returns {HttpPromise} Future object\n      */\n    createShortMethodsWithData('post', 'put', 'patch');\n\n        /**\n         * @ngdoc property\n         * @name $http#defaults\n         *\n         * @description\n         * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of\n         * default headers, withCredentials as well as request and response transformations.\n         *\n         * See \"Setting HTTP Headers\" and \"Transforming Requests and Responses\" sections above.\n         */\n    $http.defaults = defaults;\n\n\n    return $http;\n\n\n    function createShortMethods(names) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, config) {\n          return $http(extend(config || {}, {\n            method: name,\n            url: url\n          }));\n        };\n      });\n    }\n\n\n    function createShortMethodsWithData(name) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, data, config) {\n          return $http(extend(config || {}, {\n            method: name,\n            url: url,\n            data: data\n          }));\n        };\n      });\n    }\n\n\n    /**\n     * Makes the request.\n     *\n     * !!! ACCESSES CLOSURE VARS:\n     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests\n     */\n    function sendReq(config, reqData) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          cache,\n          cachedResp,\n          reqHeaders = config.headers,\n          url = buildUrl(config.url, config.params);\n\n      $http.pendingRequests.push(config);\n      promise.then(removePendingReq, removePendingReq);\n\n\n      if ((config.cache || defaults.cache) && config.cache !== false &&\n          (config.method === 'GET' || config.method === 'JSONP')) {\n        cache = isObject(config.cache) ? config.cache\n              : isObject(defaults.cache) ? defaults.cache\n              : defaultCache;\n      }\n\n      if (cache) {\n        cachedResp = cache.get(url);\n        if (isDefined(cachedResp)) {\n          if (isPromiseLike(cachedResp)) {\n            // cached request has already been sent, but there is no response yet\n            cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult);\n          } else {\n            // serving from cache\n            if (isArray(cachedResp)) {\n              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3]);\n            } else {\n              resolvePromise(cachedResp, 200, {}, 'OK');\n            }\n          }\n        } else {\n          // put the promise for the non-transformed response into cache as a placeholder\n          cache.put(url, promise);\n        }\n      }\n\n\n      // if we won't have the response in cache, set the xsrf headers and\n      // send the request to the backend\n      if (isUndefined(cachedResp)) {\n        var xsrfValue = urlIsSameOrigin(config.url)\n            ? $browser.cookies()[config.xsrfCookieName || defaults.xsrfCookieName]\n            : undefined;\n        if (xsrfValue) {\n          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;\n        }\n\n        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,\n            config.withCredentials, config.responseType);\n      }\n\n      return promise;\n\n\n      /**\n       * Callback registered to $httpBackend():\n       *  - caches the response if desired\n       *  - resolves the raw $http promise\n       *  - calls $apply\n       */\n      function done(status, response, headersString, statusText) {\n        if (cache) {\n          if (isSuccess(status)) {\n            cache.put(url, [status, response, parseHeaders(headersString), statusText]);\n          } else {\n            // remove promise from the cache\n            cache.remove(url);\n          }\n        }\n\n        function resolveHttpPromise() {\n          resolvePromise(response, status, headersString, statusText);\n        }\n\n        if (useApplyAsync) {\n          $rootScope.$applyAsync(resolveHttpPromise);\n        } else {\n          resolveHttpPromise();\n          if (!$rootScope.$$phase) $rootScope.$apply();\n        }\n      }\n\n\n      /**\n       * Resolves the raw $http promise.\n       */\n      function resolvePromise(response, status, headers, statusText) {\n        //status: HTTP response status code, 0, -1 (aborted by timeout / promise)\n        status = status >= -1 ? status : 0;\n\n        (isSuccess(status) ? deferred.resolve : deferred.reject)({\n          data: response,\n          status: status,\n          headers: headersGetter(headers),\n          config: config,\n          statusText: statusText\n        });\n      }\n\n      function resolvePromiseWithResult(result) {\n        resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText);\n      }\n\n      function removePendingReq() {\n        var idx = $http.pendingRequests.indexOf(config);\n        if (idx !== -1) $http.pendingRequests.splice(idx, 1);\n      }\n    }\n\n\n    function buildUrl(url, params) {\n      if (!params) return url;\n      var parts = [];\n      forEachSorted(params, function(value, key) {\n        if (value === null || isUndefined(value)) return;\n        if (!isArray(value)) value = [value];\n\n        forEach(value, function(v) {\n          if (isObject(v)) {\n            if (isDate(v)) {\n              v = v.toISOString();\n            } else {\n              v = toJson(v);\n            }\n          }\n          parts.push(encodeUriQuery(key) + '=' +\n                     encodeUriQuery(v));\n        });\n      });\n      if (parts.length > 0) {\n        url += ((url.indexOf('?') == -1) ? '?' : '&') + parts.join('&');\n      }\n      return url;\n    }\n  }];\n}\n\nfunction createXhr() {\n    return new window.XMLHttpRequest();\n}\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @requires $window\n * @requires $document\n *\n * @description\n * HTTP backend used by the {@link ng.$http service} that delegates to\n * XMLHttpRequest object or JSONP and deals with browser incompatibilities.\n *\n * You should never need to use this service directly, instead use the higher-level abstractions:\n * {@link ng.$http $http} or {@link ngResource.$resource $resource}.\n *\n * During testing this implementation is swapped with {@link ngMock.$httpBackend mock\n * $httpBackend} which can be trained with responses.\n */\nfunction $HttpBackendProvider() {\n  this.$get = ['$browser', '$window', '$document', function($browser, $window, $document) {\n    return createHttpBackend($browser, createXhr, $browser.defer, $window.angular.callbacks, $document[0]);\n  }];\n}\n\nfunction createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {\n  // TODO(vojta): fix the signature\n  return function(method, url, post, callback, headers, timeout, withCredentials, responseType) {\n    $browser.$$incOutstandingRequestCount();\n    url = url || $browser.url();\n\n    if (lowercase(method) == 'jsonp') {\n      var callbackId = '_' + (callbacks.counter++).toString(36);\n      callbacks[callbackId] = function(data) {\n        callbacks[callbackId].data = data;\n        callbacks[callbackId].called = true;\n      };\n\n      var jsonpDone = jsonpReq(url.replace('JSON_CALLBACK', 'angular.callbacks.' + callbackId),\n          callbackId, function(status, text) {\n        completeRequest(callback, status, callbacks[callbackId].data, \"\", text);\n        callbacks[callbackId] = noop;\n      });\n    } else {\n\n      var xhr = createXhr();\n\n      xhr.open(method, url, true);\n      forEach(headers, function(value, key) {\n        if (isDefined(value)) {\n            xhr.setRequestHeader(key, value);\n        }\n      });\n\n      xhr.onload = function requestLoaded() {\n        var statusText = xhr.statusText || '';\n\n        // responseText is the old-school way of retrieving response (supported by IE9)\n        // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)\n        var response = ('response' in xhr) ? xhr.response : xhr.responseText;\n\n        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)\n        var status = xhr.status === 1223 ? 204 : xhr.status;\n\n        // fix status code when it is 0 (0 status is undocumented).\n        // Occurs when accessing file resources or on Android 4.1 stock browser\n        // while retrieving files from application cache.\n        if (status === 0) {\n          status = response ? 200 : urlResolve(url).protocol == 'file' ? 404 : 0;\n        }\n\n        completeRequest(callback,\n            status,\n            response,\n            xhr.getAllResponseHeaders(),\n            statusText);\n      };\n\n      var requestError = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '');\n      };\n\n      xhr.onerror = requestError;\n      xhr.onabort = requestError;\n\n      if (withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      if (responseType) {\n        try {\n          xhr.responseType = responseType;\n        } catch (e) {\n          // WebKit added support for the json responseType value on 09/03/2013\n          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are\n          // known to throw when setting the value \"json\" as the response type. Other older\n          // browsers implementing the responseType\n          //\n          // The json response type can be ignored if not supported, because JSON payloads are\n          // parsed on the client-side regardless.\n          if (responseType !== 'json') {\n            throw e;\n          }\n        }\n      }\n\n      xhr.send(post || null);\n    }\n\n    if (timeout > 0) {\n      var timeoutId = $browserDefer(timeoutRequest, timeout);\n    } else if (isPromiseLike(timeout)) {\n      timeout.then(timeoutRequest);\n    }\n\n\n    function timeoutRequest() {\n      jsonpDone && jsonpDone();\n      xhr && xhr.abort();\n    }\n\n    function completeRequest(callback, status, response, headersString, statusText) {\n      // cancel timeout and subsequent timeout promise resolution\n      if (timeoutId !== undefined) {\n        $browserDefer.cancel(timeoutId);\n      }\n      jsonpDone = xhr = null;\n\n      callback(status, response, headersString, statusText);\n      $browser.$$completeOutstandingRequest(noop);\n    }\n  };\n\n  function jsonpReq(url, callbackId, done) {\n    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:\n    // - fetches local scripts via XHR and evals them\n    // - adds and immediately removes script elements from the document\n    var script = rawDocument.createElement('script'), callback = null;\n    script.type = \"text/javascript\";\n    script.src = url;\n    script.async = true;\n\n    callback = function(event) {\n      removeEventListenerFn(script, \"load\", callback);\n      removeEventListenerFn(script, \"error\", callback);\n      rawDocument.body.removeChild(script);\n      script = null;\n      var status = -1;\n      var text = \"unknown\";\n\n      if (event) {\n        if (event.type === \"load\" && !callbacks[callbackId].called) {\n          event = { type: \"error\" };\n        }\n        text = event.type;\n        status = event.type === \"error\" ? 404 : 200;\n      }\n\n      if (done) {\n        done(status, text);\n      }\n    };\n\n    addEventListenerFn(script, \"load\", callback);\n    addEventListenerFn(script, \"error\", callback);\n    rawDocument.body.appendChild(script);\n    return callback;\n  }\n}\n\nvar $interpolateMinErr = minErr('$interpolate');\n\n/**\n * @ngdoc provider\n * @name $interpolateProvider\n *\n * @description\n *\n * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.\n *\n * @example\n<example module=\"customInterpolationApp\">\n<file name=\"index.html\">\n<script>\n  var customInterpolationApp = angular.module('customInterpolationApp', []);\n\n  customInterpolationApp.config(function($interpolateProvider) {\n    $interpolateProvider.startSymbol('//');\n    $interpolateProvider.endSymbol('//');\n  });\n\n\n  customInterpolationApp.controller('DemoController', function() {\n      this.label = \"This binding is brought you by // interpolation symbols.\";\n  });\n</script>\n<div ng-app=\"App\" ng-controller=\"DemoController as demo\">\n    //demo.label//\n</div>\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  it('should interpolate binding with custom symbols', function() {\n    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');\n  });\n</file>\n</example>\n */\nfunction $InterpolateProvider() {\n  var startSymbol = '{{';\n  var endSymbol = '}}';\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#startSymbol\n   * @description\n   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.\n   *\n   * @param {string=} value new value to set the starting symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.startSymbol = function(value) {\n    if (value) {\n      startSymbol = value;\n      return this;\n    } else {\n      return startSymbol;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#endSymbol\n   * @description\n   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n   *\n   * @param {string=} value new value to set the ending symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.endSymbol = function(value) {\n    if (value) {\n      endSymbol = value;\n      return this;\n    } else {\n      return endSymbol;\n    }\n  };\n\n\n  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {\n    var startSymbolLength = startSymbol.length,\n        endSymbolLength = endSymbol.length,\n        escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'),\n        escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g');\n\n    function escape(ch) {\n      return '\\\\\\\\\\\\' + ch;\n    }\n\n    /**\n     * @ngdoc service\n     * @name $interpolate\n     * @kind function\n     *\n     * @requires $parse\n     * @requires $sce\n     *\n     * @description\n     *\n     * Compiles a string with markup into an interpolation function. This service is used by the\n     * HTML {@link ng.$compile $compile} service for data binding. See\n     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the\n     * interpolation markup.\n     *\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var exp = $interpolate('Hello {{name | uppercase}}!');\n     *   expect(exp({name:'Angular'}).toEqual('Hello ANGULAR!');\n     * ```\n     *\n     * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is\n     * `true`, the interpolation function will return `undefined` unless all embedded expressions\n     * evaluate to a value other than `undefined`.\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var context = {greeting: 'Hello', name: undefined };\n     *\n     *   // default \"forgiving\" mode\n     *   var exp = $interpolate('{{greeting}} {{name}}!');\n     *   expect(exp(context)).toEqual('Hello !');\n     *\n     *   // \"allOrNothing\" mode\n     *   exp = $interpolate('{{greeting}} {{name}}!', false, null, true);\n     *   expect(exp(context)).toBeUndefined();\n     *   context.name = 'Angular';\n     *   expect(exp(context)).toEqual('Hello Angular!');\n     * ```\n     *\n     * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior.\n     *\n     * ####Escaped Interpolation\n     * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers\n     * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash).\n     * It will be rendered as a regular start/end marker, and will not be interpreted as an expression\n     * or binding.\n     *\n     * This enables web-servers to prevent script injection attacks and defacing attacks, to some\n     * degree, while also enabling code examples to work without relying on the\n     * {@link ng.directive:ngNonBindable ngNonBindable} directive.\n     *\n     * **For security purposes, it is strongly encouraged that web servers escape user-supplied data,\n     * replacing angle brackets (&lt;, &gt;) with &amp;lt; and &amp;gt; respectively, and replacing all\n     * interpolation start/end markers with their escaped counterparts.**\n     *\n     * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered\n     * output when the $interpolate service processes the text. So, for HTML elements interpolated\n     * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter\n     * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such,\n     * this is typically useful only when user-data is used in rendering a template from the server, or\n     * when otherwise untrusted data is used by a directive.\n     *\n     * <example>\n     *  <file name=\"index.html\">\n     *    <div ng-init=\"username='A user'\">\n     *      <p ng-init=\"apptitle='Escaping demo'\">{{apptitle}}: \\{\\{ username = \"defaced value\"; \\}\\}\n     *        </p>\n     *      <p><strong>{{username}}</strong> attempts to inject code which will deface the\n     *        application, but fails to accomplish their task, because the server has correctly\n     *        escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash)\n     *        characters.</p>\n     *      <p>Instead, the result of the attempted script injection is visible, and can be removed\n     *        from the database by an administrator.</p>\n     *    </div>\n     *  </file>\n     * </example>\n     *\n     * @param {string} text The text with markup to interpolate.\n     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have\n     *    embedded expression in order to return an interpolation function. Strings with no\n     *    embedded expression will return null for the interpolation function.\n     * @param {string=} trustedContext when provided, the returned function passes the interpolated\n     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,\n     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that\n     *    provides Strict Contextual Escaping for details.\n     * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined\n     *    unless all embedded expressions evaluate to a value other than `undefined`.\n     * @returns {function(context)} an interpolation function which is used to compute the\n     *    interpolated string. The function has these parameters:\n     *\n     * - `context`: evaluation context for all expressions embedded in the interpolated text\n     */\n    function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {\n      allOrNothing = !!allOrNothing;\n      var startIndex,\n          endIndex,\n          index = 0,\n          expressions = [],\n          parseFns = [],\n          textLength = text.length,\n          exp,\n          concat = [],\n          expressionPositions = [];\n\n      while (index < textLength) {\n        if (((startIndex = text.indexOf(startSymbol, index)) != -1) &&\n             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) != -1)) {\n          if (index !== startIndex) {\n            concat.push(unescapeText(text.substring(index, startIndex)));\n          }\n          exp = text.substring(startIndex + startSymbolLength, endIndex);\n          expressions.push(exp);\n          parseFns.push($parse(exp, parseStringifyInterceptor));\n          index = endIndex + endSymbolLength;\n          expressionPositions.push(concat.length);\n          concat.push('');\n        } else {\n          // we did not find an interpolation, so we have to add the remainder to the separators array\n          if (index !== textLength) {\n            concat.push(unescapeText(text.substring(index)));\n          }\n          break;\n        }\n      }\n\n      // Concatenating expressions makes it hard to reason about whether some combination of\n      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a\n      // single expression be used for iframe[src], object[src], etc., we ensure that the value\n      // that's used is assigned or constructed by some JS code somewhere that is more testable or\n      // make it obvious that you bound the value to some user controlled value.  This helps reduce\n      // the load when auditing for XSS issues.\n      if (trustedContext && concat.length > 1) {\n          throw $interpolateMinErr('noconcat',\n              \"Error while interpolating: {0}\\nStrict Contextual Escaping disallows \" +\n              \"interpolations that concatenate multiple expressions when a trusted value is \" +\n              \"required.  See http://docs.angularjs.org/api/ng.$sce\", text);\n      }\n\n      if (!mustHaveExpression || expressions.length) {\n        var compute = function(values) {\n          for (var i = 0, ii = expressions.length; i < ii; i++) {\n            if (allOrNothing && isUndefined(values[i])) return;\n            concat[expressionPositions[i]] = values[i];\n          }\n          return concat.join('');\n        };\n\n        var getValue = function(value) {\n          return trustedContext ?\n            $sce.getTrusted(trustedContext, value) :\n            $sce.valueOf(value);\n        };\n\n        var stringify = function(value) {\n          if (value == null) { // null || undefined\n            return '';\n          }\n          switch (typeof value) {\n            case 'string':\n              break;\n            case 'number':\n              value = '' + value;\n              break;\n            default:\n              value = toJson(value);\n          }\n\n          return value;\n        };\n\n        return extend(function interpolationFn(context) {\n            var i = 0;\n            var ii = expressions.length;\n            var values = new Array(ii);\n\n            try {\n              for (; i < ii; i++) {\n                values[i] = parseFns[i](context);\n              }\n\n              return compute(values);\n            } catch (err) {\n              var newErr = $interpolateMinErr('interr', \"Can't interpolate: {0}\\n{1}\", text,\n                  err.toString());\n              $exceptionHandler(newErr);\n            }\n\n          }, {\n          // all of these properties are undocumented for now\n          exp: text, //just for compatibility with regular watchers created via $watch\n          expressions: expressions,\n          $$watchDelegate: function(scope, listener, objectEquality) {\n            var lastValue;\n            return scope.$watchGroup(parseFns, function interpolateFnWatcher(values, oldValues) {\n              var currValue = compute(values);\n              if (isFunction(listener)) {\n                listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope);\n              }\n              lastValue = currValue;\n            }, objectEquality);\n          }\n        });\n      }\n\n      function unescapeText(text) {\n        return text.replace(escapedStartRegexp, startSymbol).\n          replace(escapedEndRegexp, endSymbol);\n      }\n\n      function parseStringifyInterceptor(value) {\n        try {\n          value = getValue(value);\n          return allOrNothing && !isDefined(value) ? value : stringify(value);\n        } catch (err) {\n          var newErr = $interpolateMinErr('interr', \"Can't interpolate: {0}\\n{1}\", text,\n            err.toString());\n          $exceptionHandler(newErr);\n        }\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#startSymbol\n     * @description\n     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.\n     *\n     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} start symbol.\n     */\n    $interpolate.startSymbol = function() {\n      return startSymbol;\n    };\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#endSymbol\n     * @description\n     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n     *\n     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} end symbol.\n     */\n    $interpolate.endSymbol = function() {\n      return endSymbol;\n    };\n\n    return $interpolate;\n  }];\n}\n\nfunction $IntervalProvider() {\n  this.$get = ['$rootScope', '$window', '$q', '$$q',\n       function($rootScope,   $window,   $q,   $$q) {\n    var intervals = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $interval\n      *\n      * @description\n      * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay`\n      * milliseconds.\n      *\n      * The return value of registering an interval function is a promise. This promise will be\n      * notified upon each tick of the interval, and will be resolved after `count` iterations, or\n      * run indefinitely if `count` is not defined. The value of the notification will be the\n      * number of iterations that have run.\n      * To cancel an interval, call `$interval.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n      * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n      * time.\n      *\n      * <div class=\"alert alert-warning\">\n      * **Note**: Intervals created by this service must be explicitly destroyed when you are finished\n      * with them.  In particular they are not automatically destroyed when a controller's scope or a\n      * directive's element are destroyed.\n      * You should take this into consideration and make sure to always cancel the interval at the\n      * appropriate moment.  See the example below for more details on how and when to do this.\n      * </div>\n      *\n      * @param {function()} fn A function that should be called repeatedly.\n      * @param {number} delay Number of milliseconds between each function call.\n      * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n      *   indefinitely.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @returns {promise} A promise which will be notified on each iteration.\n      *\n      * @example\n      * <example module=\"intervalExample\">\n      * <file name=\"index.html\">\n      *   <script>\n      *     angular.module('intervalExample', [])\n      *       .controller('ExampleController', ['$scope', '$interval',\n      *         function($scope, $interval) {\n      *           $scope.format = 'M/d/yy h:mm:ss a';\n      *           $scope.blood_1 = 100;\n      *           $scope.blood_2 = 120;\n      *\n      *           var stop;\n      *           $scope.fight = function() {\n      *             // Don't start a new fight if we are already fighting\n      *             if ( angular.isDefined(stop) ) return;\n      *\n      *             stop = $interval(function() {\n      *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {\n      *                 $scope.blood_1 = $scope.blood_1 - 3;\n      *                 $scope.blood_2 = $scope.blood_2 - 4;\n      *               } else {\n      *                 $scope.stopFight();\n      *               }\n      *             }, 100);\n      *           };\n      *\n      *           $scope.stopFight = function() {\n      *             if (angular.isDefined(stop)) {\n      *               $interval.cancel(stop);\n      *               stop = undefined;\n      *             }\n      *           };\n      *\n      *           $scope.resetFight = function() {\n      *             $scope.blood_1 = 100;\n      *             $scope.blood_2 = 120;\n      *           };\n      *\n      *           $scope.$on('$destroy', function() {\n      *             // Make sure that the interval is destroyed too\n      *             $scope.stopFight();\n      *           });\n      *         }])\n      *       // Register the 'myCurrentTime' directive factory method.\n      *       // We inject $interval and dateFilter service since the factory method is DI.\n      *       .directive('myCurrentTime', ['$interval', 'dateFilter',\n      *         function($interval, dateFilter) {\n      *           // return the directive link function. (compile function not needed)\n      *           return function(scope, element, attrs) {\n      *             var format,  // date format\n      *                 stopTime; // so that we can cancel the time updates\n      *\n      *             // used to update the UI\n      *             function updateTime() {\n      *               element.text(dateFilter(new Date(), format));\n      *             }\n      *\n      *             // watch the expression, and update the UI on change.\n      *             scope.$watch(attrs.myCurrentTime, function(value) {\n      *               format = value;\n      *               updateTime();\n      *             });\n      *\n      *             stopTime = $interval(updateTime, 1000);\n      *\n      *             // listen on DOM destroy (removal) event, and cancel the next UI update\n      *             // to prevent updating time after the DOM element was removed.\n      *             element.on('$destroy', function() {\n      *               $interval.cancel(stopTime);\n      *             });\n      *           }\n      *         }]);\n      *   </script>\n      *\n      *   <div>\n      *     <div ng-controller=\"ExampleController\">\n      *       Date format: <input ng-model=\"format\"> <hr/>\n      *       Current time is: <span my-current-time=\"format\"></span>\n      *       <hr/>\n      *       Blood 1 : <font color='red'>{{blood_1}}</font>\n      *       Blood 2 : <font color='red'>{{blood_2}}</font>\n      *       <button type=\"button\" data-ng-click=\"fight()\">Fight</button>\n      *       <button type=\"button\" data-ng-click=\"stopFight()\">StopFight</button>\n      *       <button type=\"button\" data-ng-click=\"resetFight()\">resetFight</button>\n      *     </div>\n      *   </div>\n      *\n      * </file>\n      * </example>\n      */\n    function interval(fn, delay, count, invokeApply) {\n      var setInterval = $window.setInterval,\n          clearInterval = $window.clearInterval,\n          iteration = 0,\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = isDefined(count) ? count : 0;\n\n      promise.then(null, null, fn);\n\n      promise.$$intervalId = setInterval(function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          deferred.resolve(iteration);\n          clearInterval(promise.$$intervalId);\n          delete intervals[promise.$$intervalId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n\n      }, delay);\n\n      intervals[promise.$$intervalId] = deferred;\n\n      return promise;\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $interval#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`.\n      *\n      * @param {promise} promise returned by the `$interval` function.\n      * @returns {boolean} Returns `true` if the task was successfully canceled.\n      */\n    interval.cancel = function(promise) {\n      if (promise && promise.$$intervalId in intervals) {\n        intervals[promise.$$intervalId].reject('canceled');\n        $window.clearInterval(promise.$$intervalId);\n        delete intervals[promise.$$intervalId];\n        return true;\n      }\n      return false;\n    };\n\n    return interval;\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $locale\n *\n * @description\n * $locale service provides localization rules for various Angular components. As of right now the\n * only public api is:\n *\n * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)\n */\nfunction $LocaleProvider() {\n  this.$get = function() {\n    return {\n      id: 'en-us',\n\n      NUMBER_FORMATS: {\n        DECIMAL_SEP: '.',\n        GROUP_SEP: ',',\n        PATTERNS: [\n          { // Decimal Pattern\n            minInt: 1,\n            minFrac: 0,\n            maxFrac: 3,\n            posPre: '',\n            posSuf: '',\n            negPre: '-',\n            negSuf: '',\n            gSize: 3,\n            lgSize: 3\n          },{ //Currency Pattern\n            minInt: 1,\n            minFrac: 2,\n            maxFrac: 2,\n            posPre: '\\u00A4',\n            posSuf: '',\n            negPre: '(\\u00A4',\n            negSuf: ')',\n            gSize: 3,\n            lgSize: 3\n          }\n        ],\n        CURRENCY_SYM: '$'\n      },\n\n      DATETIME_FORMATS: {\n        MONTH:\n            'January,February,March,April,May,June,July,August,September,October,November,December'\n            .split(','),\n        SHORTMONTH:  'Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec'.split(','),\n        DAY: 'Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday'.split(','),\n        SHORTDAY: 'Sun,Mon,Tue,Wed,Thu,Fri,Sat'.split(','),\n        AMPMS: ['AM','PM'],\n        medium: 'MMM d, y h:mm:ss a',\n        'short': 'M/d/yy h:mm a',\n        fullDate: 'EEEE, MMMM d, y',\n        longDate: 'MMMM d, y',\n        mediumDate: 'MMM d, y',\n        shortDate: 'M/d/yy',\n        mediumTime: 'h:mm:ss a',\n        shortTime: 'h:mm a',\n        ERANAMES: [\n          \"Before Christ\",\n          \"Anno Domini\"\n        ],\n        ERAS: [\n          \"BC\",\n          \"AD\"\n        ]\n      },\n\n      pluralCat: function(num) {\n        if (num === 1) {\n          return 'one';\n        }\n        return 'other';\n      }\n    };\n  };\n}\n\nvar PATH_MATCH = /^([^\\?#]*)(\\?([^#]*))?(#(.*))?$/,\n    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};\nvar $locationMinErr = minErr('$location');\n\n\n/**\n * Encode path using encodeUriSegment, ignoring forward slashes\n *\n * @param {string} path Path to encode\n * @returns {string}\n */\nfunction encodePath(path) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    segments[i] = encodeUriSegment(segments[i]);\n  }\n\n  return segments.join('/');\n}\n\nfunction parseAbsoluteUrl(absoluteUrl, locationObj) {\n  var parsedUrl = urlResolve(absoluteUrl);\n\n  locationObj.$$protocol = parsedUrl.protocol;\n  locationObj.$$host = parsedUrl.hostname;\n  locationObj.$$port = int(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;\n}\n\n\nfunction parseAppUrl(relativeUrl, locationObj) {\n  var prefixed = (relativeUrl.charAt(0) !== '/');\n  if (prefixed) {\n    relativeUrl = '/' + relativeUrl;\n  }\n  var match = urlResolve(relativeUrl);\n  locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ?\n      match.pathname.substring(1) : match.pathname);\n  locationObj.$$search = parseKeyValue(match.search);\n  locationObj.$$hash = decodeURIComponent(match.hash);\n\n  // make sure path starts with '/';\n  if (locationObj.$$path && locationObj.$$path.charAt(0) != '/') {\n    locationObj.$$path = '/' + locationObj.$$path;\n  }\n}\n\n\n/**\n *\n * @param {string} begin\n * @param {string} whole\n * @returns {string} returns text from whole after begin or undefined if it does not begin with\n *                   expected string.\n */\nfunction beginsWith(begin, whole) {\n  if (whole.indexOf(begin) === 0) {\n    return whole.substr(begin.length);\n  }\n}\n\n\nfunction stripHash(url) {\n  var index = url.indexOf('#');\n  return index == -1 ? url : url.substr(0, index);\n}\n\nfunction trimEmptyHash(url) {\n  return url.replace(/(#.+)|#$/, '$1');\n}\n\n\nfunction stripFile(url) {\n  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);\n}\n\n/* return the server only (scheme://host:port) */\nfunction serverBase(url) {\n  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));\n}\n\n\n/**\n * LocationHtml5Url represents an url\n * This object is exposed as $location service when HTML5 mode is enabled and supported\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} basePrefix url path prefix\n */\nfunction LocationHtml5Url(appBase, appBaseNoFile, basePrefix) {\n  this.$$html5 = true;\n  basePrefix = basePrefix || '';\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given html5 (regular) url string into properties\n   * @param {string} url HTML5 url\n   * @private\n   */\n  this.$$parse = function(url) {\n    var pathUrl = beginsWith(appBaseNoFile, url);\n    if (!isString(pathUrl)) {\n      throw $locationMinErr('ipthprfx', 'Invalid url \"{0}\", missing path prefix \"{1}\".', url,\n          appBaseNoFile);\n    }\n\n    parseAppUrl(pathUrl, this);\n\n    if (!this.$$path) {\n      this.$$path = '/';\n    }\n\n    this.$$compose();\n  };\n\n  /**\n   * Compose url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/'\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n    var appUrl, prevAppUrl;\n    var rewrittenUrl;\n\n    if ((appUrl = beginsWith(appBase, url)) !== undefined) {\n      prevAppUrl = appUrl;\n      if ((appUrl = beginsWith(basePrefix, appUrl)) !== undefined) {\n        rewrittenUrl = appBaseNoFile + (beginsWith('/', appUrl) || appUrl);\n      } else {\n        rewrittenUrl = appBase + prevAppUrl;\n      }\n    } else if ((appUrl = beginsWith(appBaseNoFile, url)) !== undefined) {\n      rewrittenUrl = appBaseNoFile + appUrl;\n    } else if (appBaseNoFile == url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents url\n * This object is exposed as $location service when developer doesn't opt into html5 mode.\n * It also serves as the base class for html5 mode fallback on legacy browsers.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) {\n\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given hashbang url into properties\n   * @param {string} url Hashbang url\n   * @private\n   */\n  this.$$parse = function(url) {\n    var withoutBaseUrl = beginsWith(appBase, url) || beginsWith(appBaseNoFile, url);\n    var withoutHashUrl;\n\n    if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') {\n\n      // The rest of the url starts with a hash so we have\n      // got either a hashbang path or a plain hash fragment\n      withoutHashUrl = beginsWith(hashPrefix, withoutBaseUrl);\n      if (isUndefined(withoutHashUrl)) {\n        // There was no hashbang prefix so we just have a hash fragment\n        withoutHashUrl = withoutBaseUrl;\n      }\n\n    } else {\n      // There was no hashbang path nor hash fragment:\n      // If we are in HTML5 mode we use what is left as the path;\n      // Otherwise we ignore what is left\n      if (this.$$html5) {\n        withoutHashUrl = withoutBaseUrl;\n      } else {\n        withoutHashUrl = '';\n        if (isUndefined(withoutBaseUrl)) {\n          appBase = url;\n          this.replace();\n        }\n      }\n    }\n\n    parseAppUrl(withoutHashUrl, this);\n\n    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);\n\n    this.$$compose();\n\n    /*\n     * In Windows, on an anchor node on documents loaded from\n     * the filesystem, the browser will return a pathname\n     * prefixed with the drive name ('/C:/path') when a\n     * pathname without a drive is set:\n     *  * a.setAttribute('href', '/foo')\n     *   * a.pathname === '/C:/foo' //true\n     *\n     * Inside of Angular, we're always using pathnames that\n     * do not include drive names for routing.\n     */\n    function removeWindowsDriveName(path, url, base) {\n      /*\n      Matches paths for file protocol on windows,\n      such as /C:/foo/bar, and captures only /foo/bar.\n      */\n      var windowsFilePathExp = /^\\/[A-Z]:(\\/.*)/;\n\n      var firstPathSegmentMatch;\n\n      //Get the relative path from the input URL.\n      if (url.indexOf(base) === 0) {\n        url = url.replace(base, '');\n      }\n\n      // The input URL intentionally contains a first path segment that ends with a colon.\n      if (windowsFilePathExp.exec(url)) {\n        return path;\n      }\n\n      firstPathSegmentMatch = windowsFilePathExp.exec(path);\n      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;\n    }\n  };\n\n  /**\n   * Compose hashbang url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (stripHash(appBase) == stripHash(url)) {\n      this.$$parse(url);\n      return true;\n    }\n    return false;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents url\n * This object is exposed as $location service when html5 history api is enabled but the browser\n * does not support it.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) {\n  this.$$html5 = true;\n  LocationHashbangUrl.apply(this, arguments);\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n\n    var rewrittenUrl;\n    var appUrl;\n\n    if (appBase == stripHash(url)) {\n      rewrittenUrl = url;\n    } else if ((appUrl = beginsWith(appBaseNoFile, url))) {\n      rewrittenUrl = appBase + hashPrefix + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#'\n    this.$$absUrl = appBase + hashPrefix + this.$$url;\n  };\n\n}\n\n\nvar locationPrototype = {\n\n  /**\n   * Are we in html5 mode?\n   * @private\n   */\n  $$html5: false,\n\n  /**\n   * Has any change been replacing?\n   * @private\n   */\n  $$replace: false,\n\n  /**\n   * @ngdoc method\n   * @name $location#absUrl\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return full url representation with all segments encoded according to rules specified in\n   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var absUrl = $location.absUrl();\n   * // => \"http://example.com/#/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @return {string} full url\n   */\n  absUrl: locationGetter('$$absUrl'),\n\n  /**\n   * @ngdoc method\n   * @name $location#url\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return url (e.g. `/path?a=b#hash`) when called without any parameter.\n   *\n   * Change path, search and hash, when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var url = $location.url();\n   * // => \"/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @param {string=} url New url without base prefix (e.g. `/path?a=b#hash`)\n   * @return {string} url\n   */\n  url: function(url) {\n    if (isUndefined(url))\n      return this.$$url;\n\n    var match = PATH_MATCH.exec(url);\n    if (match[1] || url === '') this.path(decodeURIComponent(match[1]));\n    if (match[2] || match[1] || url === '') this.search(match[3] || '');\n    this.hash(match[5] || '');\n\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#protocol\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return protocol of current url.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var protocol = $location.protocol();\n   * // => \"http\"\n   * ```\n   *\n   * @return {string} protocol of current url\n   */\n  protocol: locationGetter('$$protocol'),\n\n  /**\n   * @ngdoc method\n   * @name $location#host\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return host of current url.\n   *\n   * Note: compared to the non-angular version `location.host` which returns `hostname:port`, this returns the `hostname` portion only.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var host = $location.host();\n   * // => \"example.com\"\n   *\n   * // given url http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo\n   * host = $location.host();\n   * // => \"example.com\"\n   * host = location.host;\n   * // => \"example.com:8080\"\n   * ```\n   *\n   * @return {string} host of current url.\n   */\n  host: locationGetter('$$host'),\n\n  /**\n   * @ngdoc method\n   * @name $location#port\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return port of current url.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var port = $location.port();\n   * // => 80\n   * ```\n   *\n   * @return {Number} port\n   */\n  port: locationGetter('$$port'),\n\n  /**\n   * @ngdoc method\n   * @name $location#path\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return path of current url when called without any parameter.\n   *\n   * Change path when called with parameter and return `$location`.\n   *\n   * Note: Path should always begin with forward slash (/), this method will add the forward slash\n   * if it is missing.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var path = $location.path();\n   * // => \"/some/path\"\n   * ```\n   *\n   * @param {(string|number)=} path New path\n   * @return {string} path\n   */\n  path: locationGetterSetter('$$path', function(path) {\n    path = path !== null ? path.toString() : '';\n    return path.charAt(0) == '/' ? path : '/' + path;\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#search\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return search part (as object) of current url when called without any parameter.\n   *\n   * Change search part when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var searchObject = $location.search();\n   * // => {foo: 'bar', baz: 'xoxo'}\n   *\n   * // set foo to 'yipee'\n   * $location.search('foo', 'yipee');\n   * // $location.search() => {foo: 'yipee', baz: 'xoxo'}\n   * ```\n   *\n   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or\n   * hash object.\n   *\n   * When called with a single argument the method acts as a setter, setting the `search` component\n   * of `$location` to the specified value.\n   *\n   * If the argument is a hash object containing an array of values, these values will be encoded\n   * as duplicate search parameters in the url.\n   *\n   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`\n   * will override only a single search property.\n   *\n   * If `paramValue` is an array, it will override the property of the `search` component of\n   * `$location` specified via the first argument.\n   *\n   * If `paramValue` is `null`, the property specified via the first argument will be deleted.\n   *\n   * If `paramValue` is `true`, the property specified via the first argument will be added with no\n   * value nor trailing equal sign.\n   *\n   * @return {Object} If called with no arguments returns the parsed `search` object. If called with\n   * one or more arguments returns `$location` object itself.\n   */\n  search: function(search, paramValue) {\n    switch (arguments.length) {\n      case 0:\n        return this.$$search;\n      case 1:\n        if (isString(search) || isNumber(search)) {\n          search = search.toString();\n          this.$$search = parseKeyValue(search);\n        } else if (isObject(search)) {\n          search = copy(search, {});\n          // remove object undefined or null properties\n          forEach(search, function(value, key) {\n            if (value == null) delete search[key];\n          });\n\n          this.$$search = search;\n        } else {\n          throw $locationMinErr('isrcharg',\n              'The first argument of the `$location#search()` call must be a string or an object.');\n        }\n        break;\n      default:\n        if (isUndefined(paramValue) || paramValue === null) {\n          delete this.$$search[search];\n        } else {\n          this.$$search[search] = paramValue;\n        }\n    }\n\n    this.$$compose();\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#hash\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return hash fragment when called without any parameter.\n   *\n   * Change hash fragment when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue\n   * var hash = $location.hash();\n   * // => \"hashValue\"\n   * ```\n   *\n   * @param {(string|number)=} hash New hash fragment\n   * @return {string} hash\n   */\n  hash: locationGetterSetter('$$hash', function(hash) {\n    return hash !== null ? hash.toString() : '';\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#replace\n   *\n   * @description\n   * If called, all changes to $location during current `$digest` will be replacing current history\n   * record, instead of adding new one.\n   */\n  replace: function() {\n    this.$$replace = true;\n    return this;\n  }\n};\n\nforEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) {\n  Location.prototype = Object.create(locationPrototype);\n\n  /**\n   * @ngdoc method\n   * @name $location#state\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return the history state object when called without any parameter.\n   *\n   * Change the history state object when called with one parameter and return `$location`.\n   * The state object is later passed to `pushState` or `replaceState`.\n   *\n   * NOTE: This method is supported only in HTML5 mode and only in browsers supporting\n   * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support\n   * older browsers (like IE9 or Android < 4.0), don't use this method.\n   *\n   * @param {object=} state State object for pushState or replaceState\n   * @return {object} state\n   */\n  Location.prototype.state = function(state) {\n    if (!arguments.length)\n      return this.$$state;\n\n    if (Location !== LocationHtml5Url || !this.$$html5) {\n      throw $locationMinErr('nostate', 'History API state support is available only ' +\n        'in HTML5 mode and only in browsers supporting HTML5 History API');\n    }\n    // The user might modify `stateObject` after invoking `$location.state(stateObject)`\n    // but we're changing the $$state reference to $browser.state() during the $digest\n    // so the modification window is narrow.\n    this.$$state = isUndefined(state) ? null : state;\n\n    return this;\n  };\n});\n\n\nfunction locationGetter(property) {\n  return function() {\n    return this[property];\n  };\n}\n\n\nfunction locationGetterSetter(property, preprocess) {\n  return function(value) {\n    if (isUndefined(value))\n      return this[property];\n\n    this[property] = preprocess(value);\n    this.$$compose();\n\n    return this;\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $location\n *\n * @requires $rootElement\n *\n * @description\n * The $location service parses the URL in the browser address bar (based on the\n * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL\n * available to your application. Changes to the URL in the address bar are reflected into\n * $location service and changes to $location are reflected into the browser address bar.\n *\n * **The $location service:**\n *\n * - Exposes the current URL in the browser address bar, so you can\n *   - Watch and observe the URL.\n *   - Change the URL.\n * - Synchronizes the URL with the browser when the user\n *   - Changes the address bar.\n *   - Clicks the back or forward button (or clicks a History link).\n *   - Clicks on a link.\n * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).\n *\n * For more information see {@link guide/$location Developer Guide: Using $location}\n */\n\n/**\n * @ngdoc provider\n * @name $locationProvider\n * @description\n * Use the `$locationProvider` to configure how the application deep linking paths are stored.\n */\nfunction $LocationProvider() {\n  var hashPrefix = '',\n      html5Mode = {\n        enabled: false,\n        requireBase: true,\n        rewriteLinks: true\n      };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#hashPrefix\n   * @description\n   * @param {string=} prefix Prefix for hash part (containing path and search)\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.hashPrefix = function(prefix) {\n    if (isDefined(prefix)) {\n      hashPrefix = prefix;\n      return this;\n    } else {\n      return hashPrefix;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#html5Mode\n   * @description\n   * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value.\n   *   If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported\n   *   properties:\n   *   - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to\n   *     change urls where supported. Will fall back to hash-prefixed paths in browsers that do not\n   *     support `pushState`.\n   *   - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies\n   *     whether or not a <base> tag is required to be present. If `enabled` and `requireBase` are\n   *     true, and a base tag is not present, an error will be thrown when `$location` is injected.\n   *     See the {@link guide/$location $location guide for more information}\n   *   - **rewriteLinks** - `{boolean}` - (default: `true`) When html5Mode is enabled,\n   *     enables/disables url rewriting for relative links.\n   *\n   * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter\n   */\n  this.html5Mode = function(mode) {\n    if (isBoolean(mode)) {\n      html5Mode.enabled = mode;\n      return this;\n    } else if (isObject(mode)) {\n\n      if (isBoolean(mode.enabled)) {\n        html5Mode.enabled = mode.enabled;\n      }\n\n      if (isBoolean(mode.requireBase)) {\n        html5Mode.requireBase = mode.requireBase;\n      }\n\n      if (isBoolean(mode.rewriteLinks)) {\n        html5Mode.rewriteLinks = mode.rewriteLinks;\n      }\n\n      return this;\n    } else {\n      return html5Mode;\n    }\n  };\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeStart\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted before a URL will change.\n   *\n   * This change can be prevented by calling\n   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more\n   * details about event object. Upon successful change\n   * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeSuccess\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted after a URL was changed.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window',\n      function($rootScope, $browser, $sniffer, $rootElement, $window) {\n    var $location,\n        LocationMode,\n        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''\n        initialUrl = $browser.url(),\n        appBase;\n\n    if (html5Mode.enabled) {\n      if (!baseHref && html5Mode.requireBase) {\n        throw $locationMinErr('nobase',\n          \"$location in HTML5 mode requires a <base> tag to be present!\");\n      }\n      appBase = serverBase(initialUrl) + (baseHref || '/');\n      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;\n    } else {\n      appBase = stripHash(initialUrl);\n      LocationMode = LocationHashbangUrl;\n    }\n    var appBaseNoFile = stripFile(appBase);\n\n    $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix);\n    $location.$$parseLinkUrl(initialUrl, initialUrl);\n\n    $location.$$state = $browser.state();\n\n    var IGNORE_URI_REGEXP = /^\\s*(javascript|mailto):/i;\n\n    function setBrowserUrlWithFallback(url, replace, state) {\n      var oldUrl = $location.url();\n      var oldState = $location.$$state;\n      try {\n        $browser.url(url, replace, state);\n\n        // Make sure $location.state() returns referentially identical (not just deeply equal)\n        // state object; this makes possible quick checking if the state changed in the digest\n        // loop. Checking deep equality would be too expensive.\n        $location.$$state = $browser.state();\n      } catch (e) {\n        // Restore old values if pushState fails\n        $location.url(oldUrl);\n        $location.$$state = oldState;\n\n        throw e;\n      }\n    }\n\n    $rootElement.on('click', function(event) {\n      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)\n      // currently we open nice url link and redirect then\n\n      if (!html5Mode.rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which == 2 || event.button == 2) return;\n\n      var elm = jqLite(event.target);\n\n      // traverse the DOM up to find first A tag\n      while (nodeName_(elm[0]) !== 'a') {\n        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)\n        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;\n      }\n\n      var absHref = elm.prop('href');\n      // get the actual href attribute - see\n      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx\n      var relHref = elm.attr('href') || elm.attr('xlink:href');\n\n      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {\n        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during\n        // an animation.\n        absHref = urlResolve(absHref.animVal).href;\n      }\n\n      // Ignore when url is started with javascript: or mailto:\n      if (IGNORE_URI_REGEXP.test(absHref)) return;\n\n      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {\n        if ($location.$$parseLinkUrl(absHref, relHref)) {\n          // We do a preventDefault for all urls that are part of the angular application,\n          // in html5mode and also without, so that we are able to abort navigation without\n          // getting double entries in the location history.\n          event.preventDefault();\n          // update location manually\n          if ($location.absUrl() != $browser.url()) {\n            $rootScope.$apply();\n            // hack to work around FF6 bug 684208 when scenario runner clicks on links\n            $window.angular['ff-684208-preventDefault'] = true;\n          }\n        }\n      }\n    });\n\n\n    // rewrite hashbang url <> html5 url\n    if (trimEmptyHash($location.absUrl()) != trimEmptyHash(initialUrl)) {\n      $browser.url($location.absUrl(), true);\n    }\n\n    var initializing = true;\n\n    // update $location when $browser url changes\n    $browser.onUrlChange(function(newUrl, newState) {\n\n      if (isUndefined(beginsWith(appBaseNoFile, newUrl))) {\n        // If we are navigating outside of the app then force a reload\n        $window.location.href = newUrl;\n        return;\n      }\n\n      $rootScope.$evalAsync(function() {\n        var oldUrl = $location.absUrl();\n        var oldState = $location.$$state;\n        var defaultPrevented;\n\n        $location.$$parse(newUrl);\n        $location.$$state = newState;\n\n        defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n            newState, oldState).defaultPrevented;\n\n        // if the location was changed by a `$locationChangeStart` handler then stop\n        // processing this location change\n        if ($location.absUrl() !== newUrl) return;\n\n        if (defaultPrevented) {\n          $location.$$parse(oldUrl);\n          $location.$$state = oldState;\n          setBrowserUrlWithFallback(oldUrl, false, oldState);\n        } else {\n          initializing = false;\n          afterLocationChange(oldUrl, oldState);\n        }\n      });\n      if (!$rootScope.$$phase) $rootScope.$digest();\n    });\n\n    // update browser\n    $rootScope.$watch(function $locationWatch() {\n      var oldUrl = trimEmptyHash($browser.url());\n      var newUrl = trimEmptyHash($location.absUrl());\n      var oldState = $browser.state();\n      var currentReplace = $location.$$replace;\n      var urlOrStateChanged = oldUrl !== newUrl ||\n        ($location.$$html5 && $sniffer.history && oldState !== $location.$$state);\n\n      if (initializing || urlOrStateChanged) {\n        initializing = false;\n\n        $rootScope.$evalAsync(function() {\n          var newUrl = $location.absUrl();\n          var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n              $location.$$state, oldState).defaultPrevented;\n\n          // if the location was changed by a `$locationChangeStart` handler then stop\n          // processing this location change\n          if ($location.absUrl() !== newUrl) return;\n\n          if (defaultPrevented) {\n            $location.$$parse(oldUrl);\n            $location.$$state = oldState;\n          } else {\n            if (urlOrStateChanged) {\n              setBrowserUrlWithFallback(newUrl, currentReplace,\n                                        oldState === $location.$$state ? null : $location.$$state);\n            }\n            afterLocationChange(oldUrl, oldState);\n          }\n        });\n      }\n\n      $location.$$replace = false;\n\n      // we don't need to return anything because $evalAsync will make the digest loop dirty when\n      // there is a change\n    });\n\n    return $location;\n\n    function afterLocationChange(oldUrl, oldState) {\n      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl,\n        $location.$$state, oldState);\n    }\n}];\n}\n\n/**\n * @ngdoc service\n * @name $log\n * @requires $window\n *\n * @description\n * Simple service for logging. Default implementation safely writes the message\n * into the browser's console (if present).\n *\n * The main purpose of this service is to simplify debugging and troubleshooting.\n *\n * The default is to log `debug` messages. You can use\n * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.\n *\n * @example\n   <example module=\"logExample\">\n     <file name=\"script.js\">\n       angular.module('logExample', [])\n         .controller('LogController', ['$scope', '$log', function($scope, $log) {\n           $scope.$log = $log;\n           $scope.message = 'Hello World!';\n         }]);\n     </file>\n     <file name=\"index.html\">\n       <div ng-controller=\"LogController\">\n         <p>Reload this page with open console, enter text and hit the log button...</p>\n         Message:\n         <input type=\"text\" ng-model=\"message\"/>\n         <button ng-click=\"$log.log(message)\">log</button>\n         <button ng-click=\"$log.warn(message)\">warn</button>\n         <button ng-click=\"$log.info(message)\">info</button>\n         <button ng-click=\"$log.error(message)\">error</button>\n         <button ng-click=\"$log.debug(message)\">debug</button>\n       </div>\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc provider\n * @name $logProvider\n * @description\n * Use the `$logProvider` to configure how the application logs messages\n */\nfunction $LogProvider() {\n  var debug = true,\n      self = this;\n\n  /**\n   * @ngdoc method\n   * @name $logProvider#debugEnabled\n   * @description\n   * @param {boolean=} flag enable or disable debug level messages\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.debugEnabled = function(flag) {\n    if (isDefined(flag)) {\n      debug = flag;\n    return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = ['$window', function($window) {\n    return {\n      /**\n       * @ngdoc method\n       * @name $log#log\n       *\n       * @description\n       * Write a log message\n       */\n      log: consoleLog('log'),\n\n      /**\n       * @ngdoc method\n       * @name $log#info\n       *\n       * @description\n       * Write an information message\n       */\n      info: consoleLog('info'),\n\n      /**\n       * @ngdoc method\n       * @name $log#warn\n       *\n       * @description\n       * Write a warning message\n       */\n      warn: consoleLog('warn'),\n\n      /**\n       * @ngdoc method\n       * @name $log#error\n       *\n       * @description\n       * Write an error message\n       */\n      error: consoleLog('error'),\n\n      /**\n       * @ngdoc method\n       * @name $log#debug\n       *\n       * @description\n       * Write a debug message\n       */\n      debug: (function() {\n        var fn = consoleLog('debug');\n\n        return function() {\n          if (debug) {\n            fn.apply(self, arguments);\n          }\n        };\n      }())\n    };\n\n    function formatError(arg) {\n      if (arg instanceof Error) {\n        if (arg.stack) {\n          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)\n              ? 'Error: ' + arg.message + '\\n' + arg.stack\n              : arg.stack;\n        } else if (arg.sourceURL) {\n          arg = arg.message + '\\n' + arg.sourceURL + ':' + arg.line;\n        }\n      }\n      return arg;\n    }\n\n    function consoleLog(type) {\n      var console = $window.console || {},\n          logFn = console[type] || console.log || noop,\n          hasApply = false;\n\n      // Note: reading logFn.apply throws an error in IE11 in IE8 document mode.\n      // The reason behind this is that console.log has type \"object\" in IE8...\n      try {\n        hasApply = !!logFn.apply;\n      } catch (e) {}\n\n      if (hasApply) {\n        return function() {\n          var args = [];\n          forEach(arguments, function(arg) {\n            args.push(formatError(arg));\n          });\n          return logFn.apply(console, args);\n        };\n      }\n\n      // we are IE which either doesn't have window.console => this is noop and we do nothing,\n      // or we are IE where console.log doesn't have apply so we log at least first 2 args\n      return function(arg1, arg2) {\n        logFn(arg1, arg2 == null ? '' : arg2);\n      };\n    }\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $parseMinErr = minErr('$parse');\n\n// Sandboxing Angular Expressions\n// ------------------------------\n// Angular expressions are generally considered safe because these expressions only have direct\n// access to `$scope` and locals. However, one can obtain the ability to execute arbitrary JS code by\n// obtaining a reference to native JS functions such as the Function constructor.\n//\n// As an example, consider the following Angular expression:\n//\n//   {}.toString.constructor('alert(\"evil JS code\")')\n//\n// This sandboxing technique is not perfect and doesn't aim to be. The goal is to prevent exploits\n// against the expression language, but not to prevent exploits that were enabled by exposing\n// sensitive JavaScript or browser APIs on Scope. Exposing such objects on a Scope is never a good\n// practice and therefore we are not even trying to protect against interaction with an object\n// explicitly exposed in this way.\n//\n// In general, it is not possible to access a Window object from an angular expression unless a\n// window or some DOM object that has a reference to window is published onto a Scope.\n// Similarly we prevent invocations of function known to be dangerous, as well as assignments to\n// native objects.\n//\n// See https://docs.angularjs.org/guide/security\n\n\nfunction ensureSafeMemberName(name, fullExpression) {\n  if (name === \"__defineGetter__\" || name === \"__defineSetter__\"\n      || name === \"__lookupGetter__\" || name === \"__lookupSetter__\"\n      || name === \"__proto__\") {\n    throw $parseMinErr('isecfld',\n        'Attempting to access a disallowed field in Angular expressions! '\n        + 'Expression: {0}', fullExpression);\n  }\n  return name;\n}\n\nfunction getStringValue(name, fullExpression) {\n  // From the JavaScript docs:\n  // Property names must be strings. This means that non-string objects cannot be used\n  // as keys in an object. Any non-string object, including a number, is typecasted\n  // into a string via the toString method.\n  //\n  // So, to ensure that we are checking the same `name` that JavaScript would use,\n  // we cast it to a string, if possible.\n  // Doing `name + ''` can cause a repl error if the result to `toString` is not a string,\n  // this is, this will handle objects that misbehave.\n  name = name + '';\n  if (!isString(name)) {\n    throw $parseMinErr('iseccst',\n        'Cannot convert object to primitive value! '\n        + 'Expression: {0}', fullExpression);\n  }\n  return name;\n}\n\nfunction ensureSafeObject(obj, fullExpression) {\n  // nifty check if obj is Function that is fast and works across iframes and other contexts\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n          'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isWindow(obj)\n        obj.window === obj) {\n      throw $parseMinErr('isecwindow',\n          'Referencing the Window in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isElement(obj)\n        obj.children && (obj.nodeName || (obj.prop && obj.attr && obj.find))) {\n      throw $parseMinErr('isecdom',\n          'Referencing DOM nodes in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// block Object so that we can't get hold of dangerous Object.* methods\n        obj === Object) {\n      throw $parseMinErr('isecobj',\n          'Referencing Object in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    }\n  }\n  return obj;\n}\n\nvar CALL = Function.prototype.call;\nvar APPLY = Function.prototype.apply;\nvar BIND = Function.prototype.bind;\n\nfunction ensureSafeFunction(obj, fullExpression) {\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n        'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    } else if (obj === CALL || obj === APPLY || obj === BIND) {\n      throw $parseMinErr('isecff',\n        'Referencing call, apply or bind in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    }\n  }\n}\n\n//Keyword constants\nvar CONSTANTS = createMap();\nforEach({\n  'null': function() { return null; },\n  'true': function() { return true; },\n  'false': function() { return false; },\n  'undefined': function() {}\n}, function(constantGetter, name) {\n  constantGetter.constant = constantGetter.literal = constantGetter.sharedGetter = true;\n  CONSTANTS[name] = constantGetter;\n});\n\n//Not quite a constant, but can be lex/parsed the same\nCONSTANTS['this'] = function(self) { return self; };\nCONSTANTS['this'].sharedGetter = true;\n\n\n//Operators - will be wrapped by binaryFn/unaryFn/assignment/filter\nvar OPERATORS = extend(createMap(), {\n    '+':function(self, locals, a, b) {\n      a=a(self, locals); b=b(self, locals);\n      if (isDefined(a)) {\n        if (isDefined(b)) {\n          return a + b;\n        }\n        return a;\n      }\n      return isDefined(b) ? b : undefined;},\n    '-':function(self, locals, a, b) {\n          a=a(self, locals); b=b(self, locals);\n          return (isDefined(a) ? a : 0) - (isDefined(b) ? b : 0);\n        },\n    '*':function(self, locals, a, b) {return a(self, locals) * b(self, locals);},\n    '/':function(self, locals, a, b) {return a(self, locals) / b(self, locals);},\n    '%':function(self, locals, a, b) {return a(self, locals) % b(self, locals);},\n    '===':function(self, locals, a, b) {return a(self, locals) === b(self, locals);},\n    '!==':function(self, locals, a, b) {return a(self, locals) !== b(self, locals);},\n    '==':function(self, locals, a, b) {return a(self, locals) == b(self, locals);},\n    '!=':function(self, locals, a, b) {return a(self, locals) != b(self, locals);},\n    '<':function(self, locals, a, b) {return a(self, locals) < b(self, locals);},\n    '>':function(self, locals, a, b) {return a(self, locals) > b(self, locals);},\n    '<=':function(self, locals, a, b) {return a(self, locals) <= b(self, locals);},\n    '>=':function(self, locals, a, b) {return a(self, locals) >= b(self, locals);},\n    '&&':function(self, locals, a, b) {return a(self, locals) && b(self, locals);},\n    '||':function(self, locals, a, b) {return a(self, locals) || b(self, locals);},\n    '!':function(self, locals, a) {return !a(self, locals);},\n\n    //Tokenized as operators but parsed as assignment/filters\n    '=':true,\n    '|':true\n});\nvar ESCAPE = {\"n\":\"\\n\", \"f\":\"\\f\", \"r\":\"\\r\", \"t\":\"\\t\", \"v\":\"\\v\", \"'\":\"'\", '\"':'\"'};\n\n\n/////////////////////////////////////////\n\n\n/**\n * @constructor\n */\nvar Lexer = function(options) {\n  this.options = options;\n};\n\nLexer.prototype = {\n  constructor: Lexer,\n\n  lex: function(text) {\n    this.text = text;\n    this.index = 0;\n    this.tokens = [];\n\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (ch === '\"' || ch === \"'\") {\n        this.readString(ch);\n      } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) {\n        this.readNumber();\n      } else if (this.isIdent(ch)) {\n        this.readIdent();\n      } else if (this.is(ch, '(){}[].,;:?')) {\n        this.tokens.push({index: this.index, text: ch});\n        this.index++;\n      } else if (this.isWhitespace(ch)) {\n        this.index++;\n      } else {\n        var ch2 = ch + this.peek();\n        var ch3 = ch2 + this.peek(2);\n        var op1 = OPERATORS[ch];\n        var op2 = OPERATORS[ch2];\n        var op3 = OPERATORS[ch3];\n        if (op1 || op2 || op3) {\n          var token = op3 ? ch3 : (op2 ? ch2 : ch);\n          this.tokens.push({index: this.index, text: token, operator: true});\n          this.index += token.length;\n        } else {\n          this.throwError('Unexpected next character ', this.index, this.index + 1);\n        }\n      }\n    }\n    return this.tokens;\n  },\n\n  is: function(ch, chars) {\n    return chars.indexOf(ch) !== -1;\n  },\n\n  peek: function(i) {\n    var num = i || 1;\n    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;\n  },\n\n  isNumber: function(ch) {\n    return ('0' <= ch && ch <= '9') && typeof ch === \"string\";\n  },\n\n  isWhitespace: function(ch) {\n    // IE treats non-breaking space as \\u00A0\n    return (ch === ' ' || ch === '\\r' || ch === '\\t' ||\n            ch === '\\n' || ch === '\\v' || ch === '\\u00A0');\n  },\n\n  isIdent: function(ch) {\n    return ('a' <= ch && ch <= 'z' ||\n            'A' <= ch && ch <= 'Z' ||\n            '_' === ch || ch === '$');\n  },\n\n  isExpOperator: function(ch) {\n    return (ch === '-' || ch === '+' || this.isNumber(ch));\n  },\n\n  throwError: function(error, start, end) {\n    end = end || this.index;\n    var colStr = (isDefined(start)\n            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'\n            : ' ' + end);\n    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',\n        error, colStr, this.text);\n  },\n\n  readNumber: function() {\n    var number = '';\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = lowercase(this.text.charAt(this.index));\n      if (ch == '.' || this.isNumber(ch)) {\n        number += ch;\n      } else {\n        var peekCh = this.peek();\n        if (ch == 'e' && this.isExpOperator(peekCh)) {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            peekCh && this.isNumber(peekCh) &&\n            number.charAt(number.length - 1) == 'e') {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            (!peekCh || !this.isNumber(peekCh)) &&\n            number.charAt(number.length - 1) == 'e') {\n          this.throwError('Invalid exponent');\n        } else {\n          break;\n        }\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: number,\n      constant: true,\n      value: Number(number)\n    });\n  },\n\n  readIdent: function() {\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (!(this.isIdent(ch) || this.isNumber(ch))) {\n        break;\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: this.text.slice(start, this.index),\n      identifier: true\n    });\n  },\n\n  readString: function(quote) {\n    var start = this.index;\n    this.index++;\n    var string = '';\n    var rawString = quote;\n    var escape = false;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      rawString += ch;\n      if (escape) {\n        if (ch === 'u') {\n          var hex = this.text.substring(this.index + 1, this.index + 5);\n          if (!hex.match(/[\\da-f]{4}/i))\n            this.throwError('Invalid unicode escape [\\\\u' + hex + ']');\n          this.index += 4;\n          string += String.fromCharCode(parseInt(hex, 16));\n        } else {\n          var rep = ESCAPE[ch];\n          string = string + (rep || ch);\n        }\n        escape = false;\n      } else if (ch === '\\\\') {\n        escape = true;\n      } else if (ch === quote) {\n        this.index++;\n        this.tokens.push({\n          index: start,\n          text: rawString,\n          constant: true,\n          value: string\n        });\n        return;\n      } else {\n        string += ch;\n      }\n      this.index++;\n    }\n    this.throwError('Unterminated quote', start);\n  }\n};\n\n\nfunction isConstant(exp) {\n  return exp.constant;\n}\n\n/**\n * @constructor\n */\nvar Parser = function(lexer, $filter, options) {\n  this.lexer = lexer;\n  this.$filter = $filter;\n  this.options = options;\n};\n\nParser.ZERO = extend(function() {\n  return 0;\n}, {\n  sharedGetter: true,\n  constant: true\n});\n\nParser.prototype = {\n  constructor: Parser,\n\n  parse: function(text) {\n    this.text = text;\n    this.tokens = this.lexer.lex(text);\n\n    var value = this.statements();\n\n    if (this.tokens.length !== 0) {\n      this.throwError('is an unexpected token', this.tokens[0]);\n    }\n\n    value.literal = !!value.literal;\n    value.constant = !!value.constant;\n\n    return value;\n  },\n\n  primary: function() {\n    var primary;\n    if (this.expect('(')) {\n      primary = this.filterChain();\n      this.consume(')');\n    } else if (this.expect('[')) {\n      primary = this.arrayDeclaration();\n    } else if (this.expect('{')) {\n      primary = this.object();\n    } else if (this.peek().identifier && this.peek().text in CONSTANTS) {\n      primary = CONSTANTS[this.consume().text];\n    } else if (this.peek().identifier) {\n      primary = this.identifier();\n    } else if (this.peek().constant) {\n      primary = this.constant();\n    } else {\n      this.throwError('not a primary expression', this.peek());\n    }\n\n    var next, context;\n    while ((next = this.expect('(', '[', '.'))) {\n      if (next.text === '(') {\n        primary = this.functionCall(primary, context);\n        context = null;\n      } else if (next.text === '[') {\n        context = primary;\n        primary = this.objectIndex(primary);\n      } else if (next.text === '.') {\n        context = primary;\n        primary = this.fieldAccess(primary);\n      } else {\n        this.throwError('IMPOSSIBLE');\n      }\n    }\n    return primary;\n  },\n\n  throwError: function(msg, token) {\n    throw $parseMinErr('syntax',\n        'Syntax Error: Token \\'{0}\\' {1} at column {2} of the expression [{3}] starting at [{4}].',\n          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));\n  },\n\n  peekToken: function() {\n    if (this.tokens.length === 0)\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    return this.tokens[0];\n  },\n\n  peek: function(e1, e2, e3, e4) {\n    return this.peekAhead(0, e1, e2, e3, e4);\n  },\n  peekAhead: function(i, e1, e2, e3, e4) {\n    if (this.tokens.length > i) {\n      var token = this.tokens[i];\n      var t = token.text;\n      if (t === e1 || t === e2 || t === e3 || t === e4 ||\n          (!e1 && !e2 && !e3 && !e4)) {\n        return token;\n      }\n    }\n    return false;\n  },\n\n  expect: function(e1, e2, e3, e4) {\n    var token = this.peek(e1, e2, e3, e4);\n    if (token) {\n      this.tokens.shift();\n      return token;\n    }\n    return false;\n  },\n\n  consume: function(e1) {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n\n    var token = this.expect(e1);\n    if (!token) {\n      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());\n    }\n    return token;\n  },\n\n  unaryFn: function(op, right) {\n    var fn = OPERATORS[op];\n    return extend(function $parseUnaryFn(self, locals) {\n      return fn(self, locals, right);\n    }, {\n      constant:right.constant,\n      inputs: [right]\n    });\n  },\n\n  binaryFn: function(left, op, right, isBranching) {\n    var fn = OPERATORS[op];\n    return extend(function $parseBinaryFn(self, locals) {\n      return fn(self, locals, left, right);\n    }, {\n      constant: left.constant && right.constant,\n      inputs: !isBranching && [left, right]\n    });\n  },\n\n  identifier: function() {\n    var id = this.consume().text;\n\n    //Continue reading each `.identifier` unless it is a method invocation\n    while (this.peek('.') && this.peekAhead(1).identifier && !this.peekAhead(2, '(')) {\n      id += this.consume().text + this.consume().text;\n    }\n\n    return getterFn(id, this.options, this.text);\n  },\n\n  constant: function() {\n    var value = this.consume().value;\n\n    return extend(function $parseConstant() {\n      return value;\n    }, {\n      constant: true,\n      literal: true\n    });\n  },\n\n  statements: function() {\n    var statements = [];\n    while (true) {\n      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))\n        statements.push(this.filterChain());\n      if (!this.expect(';')) {\n        // optimize for the common case where there is only one statement.\n        // TODO(size): maybe we should not support multiple statements?\n        return (statements.length === 1)\n            ? statements[0]\n            : function $parseStatements(self, locals) {\n                var value;\n                for (var i = 0, ii = statements.length; i < ii; i++) {\n                  value = statements[i](self, locals);\n                }\n                return value;\n              };\n      }\n    }\n  },\n\n  filterChain: function() {\n    var left = this.expression();\n    var token;\n    while ((token = this.expect('|'))) {\n      left = this.filter(left);\n    }\n    return left;\n  },\n\n  filter: function(inputFn) {\n    var fn = this.$filter(this.consume().text);\n    var argsFn;\n    var args;\n\n    if (this.peek(':')) {\n      argsFn = [];\n      args = []; // we can safely reuse the array\n      while (this.expect(':')) {\n        argsFn.push(this.expression());\n      }\n    }\n\n    var inputs = [inputFn].concat(argsFn || []);\n\n    return extend(function $parseFilter(self, locals) {\n      var input = inputFn(self, locals);\n      if (args) {\n        args[0] = input;\n\n        var i = argsFn.length;\n        while (i--) {\n          args[i + 1] = argsFn[i](self, locals);\n        }\n\n        return fn.apply(undefined, args);\n      }\n\n      return fn(input);\n    }, {\n      constant: !fn.$stateful && inputs.every(isConstant),\n      inputs: !fn.$stateful && inputs\n    });\n  },\n\n  expression: function() {\n    return this.assignment();\n  },\n\n  assignment: function() {\n    var left = this.ternary();\n    var right;\n    var token;\n    if ((token = this.expect('='))) {\n      if (!left.assign) {\n        this.throwError('implies assignment but [' +\n            this.text.substring(0, token.index) + '] can not be assigned to', token);\n      }\n      right = this.ternary();\n      return extend(function $parseAssignment(scope, locals) {\n        return left.assign(scope, right(scope, locals), locals);\n      }, {\n        inputs: [left, right]\n      });\n    }\n    return left;\n  },\n\n  ternary: function() {\n    var left = this.logicalOR();\n    var middle;\n    var token;\n    if ((token = this.expect('?'))) {\n      middle = this.assignment();\n      if (this.consume(':')) {\n        var right = this.assignment();\n\n        return extend(function $parseTernary(self, locals) {\n          return left(self, locals) ? middle(self, locals) : right(self, locals);\n        }, {\n          constant: left.constant && middle.constant && right.constant\n        });\n      }\n    }\n\n    return left;\n  },\n\n  logicalOR: function() {\n    var left = this.logicalAND();\n    var token;\n    while ((token = this.expect('||'))) {\n      left = this.binaryFn(left, token.text, this.logicalAND(), true);\n    }\n    return left;\n  },\n\n  logicalAND: function() {\n    var left = this.equality();\n    var token;\n    while ((token = this.expect('&&'))) {\n      left = this.binaryFn(left, token.text, this.equality(), true);\n    }\n    return left;\n  },\n\n  equality: function() {\n    var left = this.relational();\n    var token;\n    while ((token = this.expect('==','!=','===','!=='))) {\n      left = this.binaryFn(left, token.text, this.relational());\n    }\n    return left;\n  },\n\n  relational: function() {\n    var left = this.additive();\n    var token;\n    while ((token = this.expect('<', '>', '<=', '>='))) {\n      left = this.binaryFn(left, token.text, this.additive());\n    }\n    return left;\n  },\n\n  additive: function() {\n    var left = this.multiplicative();\n    var token;\n    while ((token = this.expect('+','-'))) {\n      left = this.binaryFn(left, token.text, this.multiplicative());\n    }\n    return left;\n  },\n\n  multiplicative: function() {\n    var left = this.unary();\n    var token;\n    while ((token = this.expect('*','/','%'))) {\n      left = this.binaryFn(left, token.text, this.unary());\n    }\n    return left;\n  },\n\n  unary: function() {\n    var token;\n    if (this.expect('+')) {\n      return this.primary();\n    } else if ((token = this.expect('-'))) {\n      return this.binaryFn(Parser.ZERO, token.text, this.unary());\n    } else if ((token = this.expect('!'))) {\n      return this.unaryFn(token.text, this.unary());\n    } else {\n      return this.primary();\n    }\n  },\n\n  fieldAccess: function(object) {\n    var getter = this.identifier();\n\n    return extend(function $parseFieldAccess(scope, locals, self) {\n      var o = self || object(scope, locals);\n      return (o == null) ? undefined : getter(o);\n    }, {\n      assign: function(scope, value, locals) {\n        var o = object(scope, locals);\n        if (!o) object.assign(scope, o = {}, locals);\n        return getter.assign(o, value);\n      }\n    });\n  },\n\n  objectIndex: function(obj) {\n    var expression = this.text;\n\n    var indexFn = this.expression();\n    this.consume(']');\n\n    return extend(function $parseObjectIndex(self, locals) {\n      var o = obj(self, locals),\n          i = getStringValue(indexFn(self, locals), expression),\n          v;\n\n      ensureSafeMemberName(i, expression);\n      if (!o) return undefined;\n      v = ensureSafeObject(o[i], expression);\n      return v;\n    }, {\n      assign: function(self, value, locals) {\n        var key = ensureSafeMemberName(getStringValue(indexFn(self, locals), expression), expression);\n        // prevent overwriting of Function.constructor which would break ensureSafeObject check\n        var o = ensureSafeObject(obj(self, locals), expression);\n        if (!o) obj.assign(self, o = {}, locals);\n        return o[key] = value;\n      }\n    });\n  },\n\n  functionCall: function(fnGetter, contextGetter) {\n    var argsFn = [];\n    if (this.peekToken().text !== ')') {\n      do {\n        argsFn.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(')');\n\n    var expressionText = this.text;\n    // we can safely reuse the array across invocations\n    var args = argsFn.length ? [] : null;\n\n    return function $parseFunctionCall(scope, locals) {\n      var context = contextGetter ? contextGetter(scope, locals) : isDefined(contextGetter) ? undefined : scope;\n      var fn = fnGetter(scope, locals, context) || noop;\n\n      if (args) {\n        var i = argsFn.length;\n        while (i--) {\n          args[i] = ensureSafeObject(argsFn[i](scope, locals), expressionText);\n        }\n      }\n\n      ensureSafeObject(context, expressionText);\n      ensureSafeFunction(fn, expressionText);\n\n      // IE doesn't have apply for some native functions\n      var v = fn.apply\n            ? fn.apply(context, args)\n            : fn(args[0], args[1], args[2], args[3], args[4]);\n\n      if (args) {\n        // Free-up the memory (arguments of the last function call).\n        args.length = 0;\n      }\n\n      return ensureSafeObject(v, expressionText);\n      };\n  },\n\n  // This is used with json array declaration\n  arrayDeclaration: function() {\n    var elementFns = [];\n    if (this.peekToken().text !== ']') {\n      do {\n        if (this.peek(']')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        elementFns.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(']');\n\n    return extend(function $parseArrayLiteral(self, locals) {\n      var array = [];\n      for (var i = 0, ii = elementFns.length; i < ii; i++) {\n        array.push(elementFns[i](self, locals));\n      }\n      return array;\n    }, {\n      literal: true,\n      constant: elementFns.every(isConstant),\n      inputs: elementFns\n    });\n  },\n\n  object: function() {\n    var keys = [], valueFns = [];\n    if (this.peekToken().text !== '}') {\n      do {\n        if (this.peek('}')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        var token = this.consume();\n        if (token.constant) {\n          keys.push(token.value);\n        } else if (token.identifier) {\n          keys.push(token.text);\n        } else {\n          this.throwError(\"invalid key\", token);\n        }\n        this.consume(':');\n        valueFns.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume('}');\n\n    return extend(function $parseObjectLiteral(self, locals) {\n      var object = {};\n      for (var i = 0, ii = valueFns.length; i < ii; i++) {\n        object[keys[i]] = valueFns[i](self, locals);\n      }\n      return object;\n    }, {\n      literal: true,\n      constant: valueFns.every(isConstant),\n      inputs: valueFns\n    });\n  }\n};\n\n\n//////////////////////////////////////////////////\n// Parser helper functions\n//////////////////////////////////////////////////\n\nfunction setter(obj, locals, path, setValue, fullExp) {\n  ensureSafeObject(obj, fullExp);\n  ensureSafeObject(locals, fullExp);\n\n  var element = path.split('.'), key;\n  for (var i = 0; element.length > 1; i++) {\n    key = ensureSafeMemberName(element.shift(), fullExp);\n    var propertyObj = (i === 0 && locals && locals[key]) || obj[key];\n    if (!propertyObj) {\n      propertyObj = {};\n      obj[key] = propertyObj;\n    }\n    obj = ensureSafeObject(propertyObj, fullExp);\n  }\n  key = ensureSafeMemberName(element.shift(), fullExp);\n  ensureSafeObject(obj[key], fullExp);\n  obj[key] = setValue;\n  return setValue;\n}\n\nvar getterFnCacheDefault = createMap();\nvar getterFnCacheExpensive = createMap();\n\nfunction isPossiblyDangerousMemberName(name) {\n  return name == 'constructor';\n}\n\n/**\n * Implementation of the \"Black Hole\" variant from:\n * - http://jsperf.com/angularjs-parse-getter/4\n * - http://jsperf.com/path-evaluation-simplified/7\n */\nfunction cspSafeGetterFn(key0, key1, key2, key3, key4, fullExp, expensiveChecks) {\n  ensureSafeMemberName(key0, fullExp);\n  ensureSafeMemberName(key1, fullExp);\n  ensureSafeMemberName(key2, fullExp);\n  ensureSafeMemberName(key3, fullExp);\n  ensureSafeMemberName(key4, fullExp);\n  var eso = function(o) {\n    return ensureSafeObject(o, fullExp);\n  };\n  var eso0 = (expensiveChecks || isPossiblyDangerousMemberName(key0)) ? eso : identity;\n  var eso1 = (expensiveChecks || isPossiblyDangerousMemberName(key1)) ? eso : identity;\n  var eso2 = (expensiveChecks || isPossiblyDangerousMemberName(key2)) ? eso : identity;\n  var eso3 = (expensiveChecks || isPossiblyDangerousMemberName(key3)) ? eso : identity;\n  var eso4 = (expensiveChecks || isPossiblyDangerousMemberName(key4)) ? eso : identity;\n\n  return function cspSafeGetter(scope, locals) {\n    var pathVal = (locals && locals.hasOwnProperty(key0)) ? locals : scope;\n\n    if (pathVal == null) return pathVal;\n    pathVal = eso0(pathVal[key0]);\n\n    if (!key1) return pathVal;\n    if (pathVal == null) return undefined;\n    pathVal = eso1(pathVal[key1]);\n\n    if (!key2) return pathVal;\n    if (pathVal == null) return undefined;\n    pathVal = eso2(pathVal[key2]);\n\n    if (!key3) return pathVal;\n    if (pathVal == null) return undefined;\n    pathVal = eso3(pathVal[key3]);\n\n    if (!key4) return pathVal;\n    if (pathVal == null) return undefined;\n    pathVal = eso4(pathVal[key4]);\n\n    return pathVal;\n  };\n}\n\nfunction getterFnWithEnsureSafeObject(fn, fullExpression) {\n  return function(s, l) {\n    return fn(s, l, ensureSafeObject, fullExpression);\n  };\n}\n\nfunction getterFn(path, options, fullExp) {\n  var expensiveChecks = options.expensiveChecks;\n  var getterFnCache = (expensiveChecks ? getterFnCacheExpensive : getterFnCacheDefault);\n  var fn = getterFnCache[path];\n  if (fn) return fn;\n\n\n  var pathKeys = path.split('.'),\n      pathKeysLength = pathKeys.length;\n\n  // http://jsperf.com/angularjs-parse-getter/6\n  if (options.csp) {\n    if (pathKeysLength < 6) {\n      fn = cspSafeGetterFn(pathKeys[0], pathKeys[1], pathKeys[2], pathKeys[3], pathKeys[4], fullExp, expensiveChecks);\n    } else {\n      fn = function cspSafeGetter(scope, locals) {\n        var i = 0, val;\n        do {\n          val = cspSafeGetterFn(pathKeys[i++], pathKeys[i++], pathKeys[i++], pathKeys[i++],\n                                pathKeys[i++], fullExp, expensiveChecks)(scope, locals);\n\n          locals = undefined; // clear after first iteration\n          scope = val;\n        } while (i < pathKeysLength);\n        return val;\n      };\n    }\n  } else {\n    var code = '';\n    if (expensiveChecks) {\n      code += 's = eso(s, fe);\\nl = eso(l, fe);\\n';\n    }\n    var needsEnsureSafeObject = expensiveChecks;\n    forEach(pathKeys, function(key, index) {\n      ensureSafeMemberName(key, fullExp);\n      var lookupJs = (index\n                      // we simply dereference 's' on any .dot notation\n                      ? 's'\n                      // but if we are first then we check locals first, and if so read it first\n                      : '((l&&l.hasOwnProperty(\"' + key + '\"))?l:s)') + '.' + key;\n      if (expensiveChecks || isPossiblyDangerousMemberName(key)) {\n        lookupJs = 'eso(' + lookupJs + ', fe)';\n        needsEnsureSafeObject = true;\n      }\n      code += 'if(s == null) return undefined;\\n' +\n              's=' + lookupJs + ';\\n';\n    });\n    code += 'return s;';\n\n    /* jshint -W054 */\n    var evaledFnGetter = new Function('s', 'l', 'eso', 'fe', code); // s=scope, l=locals, eso=ensureSafeObject\n    /* jshint +W054 */\n    evaledFnGetter.toString = valueFn(code);\n    if (needsEnsureSafeObject) {\n      evaledFnGetter = getterFnWithEnsureSafeObject(evaledFnGetter, fullExp);\n    }\n    fn = evaledFnGetter;\n  }\n\n  fn.sharedGetter = true;\n  fn.assign = function(self, value, locals) {\n    return setter(self, locals, path, value, path);\n  };\n  getterFnCache[path] = fn;\n  return fn;\n}\n\nvar objectValueOf = Object.prototype.valueOf;\n\nfunction getValueOf(value) {\n  return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value);\n}\n\n///////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $parse\n * @kind function\n *\n * @description\n *\n * Converts Angular {@link guide/expression expression} into a function.\n *\n * ```js\n *   var getter = $parse('user.name');\n *   var setter = getter.assign;\n *   var context = {user:{name:'angular'}};\n *   var locals = {user:{name:'local'}};\n *\n *   expect(getter(context)).toEqual('angular');\n *   setter(context, 'newValue');\n *   expect(context.user.name).toEqual('newValue');\n *   expect(getter(context, locals)).toEqual('local');\n * ```\n *\n *\n * @param {string} expression String expression to compile.\n * @returns {function(context, locals)} a function which represents the compiled expression:\n *\n *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n *      are evaluated against (typically a scope object).\n *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n *      `context`.\n *\n *    The returned function also has the following properties:\n *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript\n *        literal.\n *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript\n *        constant literals.\n *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be\n *        set to a function to change its value on the given context.\n *\n */\n\n\n/**\n * @ngdoc provider\n * @name $parseProvider\n *\n * @description\n * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}\n *  service.\n */\nfunction $ParseProvider() {\n  var cacheDefault = createMap();\n  var cacheExpensive = createMap();\n\n\n\n  this.$get = ['$filter', '$sniffer', function($filter, $sniffer) {\n    var $parseOptions = {\n          csp: $sniffer.csp,\n          expensiveChecks: false\n        },\n        $parseOptionsExpensive = {\n          csp: $sniffer.csp,\n          expensiveChecks: true\n        };\n\n    function wrapSharedExpression(exp) {\n      var wrapped = exp;\n\n      if (exp.sharedGetter) {\n        wrapped = function $parseWrapper(self, locals) {\n          return exp(self, locals);\n        };\n        wrapped.literal = exp.literal;\n        wrapped.constant = exp.constant;\n        wrapped.assign = exp.assign;\n      }\n\n      return wrapped;\n    }\n\n    return function $parse(exp, interceptorFn, expensiveChecks) {\n      var parsedExpression, oneTime, cacheKey;\n\n      switch (typeof exp) {\n        case 'string':\n          cacheKey = exp = exp.trim();\n\n          var cache = (expensiveChecks ? cacheExpensive : cacheDefault);\n          parsedExpression = cache[cacheKey];\n\n          if (!parsedExpression) {\n            if (exp.charAt(0) === ':' && exp.charAt(1) === ':') {\n              oneTime = true;\n              exp = exp.substring(2);\n            }\n\n            var parseOptions = expensiveChecks ? $parseOptionsExpensive : $parseOptions;\n            var lexer = new Lexer(parseOptions);\n            var parser = new Parser(lexer, $filter, parseOptions);\n            parsedExpression = parser.parse(exp);\n\n            if (parsedExpression.constant) {\n              parsedExpression.$$watchDelegate = constantWatchDelegate;\n            } else if (oneTime) {\n              //oneTime is not part of the exp passed to the Parser so we may have to\n              //wrap the parsedExpression before adding a $$watchDelegate\n              parsedExpression = wrapSharedExpression(parsedExpression);\n              parsedExpression.$$watchDelegate = parsedExpression.literal ?\n                oneTimeLiteralWatchDelegate : oneTimeWatchDelegate;\n            } else if (parsedExpression.inputs) {\n              parsedExpression.$$watchDelegate = inputsWatchDelegate;\n            }\n\n            cache[cacheKey] = parsedExpression;\n          }\n          return addInterceptor(parsedExpression, interceptorFn);\n\n        case 'function':\n          return addInterceptor(exp, interceptorFn);\n\n        default:\n          return addInterceptor(noop, interceptorFn);\n      }\n    };\n\n    function collectExpressionInputs(inputs, list) {\n      for (var i = 0, ii = inputs.length; i < ii; i++) {\n        var input = inputs[i];\n        if (!input.constant) {\n          if (input.inputs) {\n            collectExpressionInputs(input.inputs, list);\n          } else if (list.indexOf(input) === -1) { // TODO(perf) can we do better?\n            list.push(input);\n          }\n        }\n      }\n\n      return list;\n    }\n\n    function expressionInputDirtyCheck(newValue, oldValueOfValue) {\n\n      if (newValue == null || oldValueOfValue == null) { // null/undefined\n        return newValue === oldValueOfValue;\n      }\n\n      if (typeof newValue === 'object') {\n\n        // attempt to convert the value to a primitive type\n        // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can\n        //             be cheaply dirty-checked\n        newValue = getValueOf(newValue);\n\n        if (typeof newValue === 'object') {\n          // objects/arrays are not supported - deep-watching them would be too expensive\n          return false;\n        }\n\n        // fall-through to the primitive equality check\n      }\n\n      //Primitive or NaN\n      return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue);\n    }\n\n    function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var inputExpressions = parsedExpression.$$inputs ||\n                    (parsedExpression.$$inputs = collectExpressionInputs(parsedExpression.inputs, []));\n\n      var lastResult;\n\n      if (inputExpressions.length === 1) {\n        var oldInputValue = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        inputExpressions = inputExpressions[0];\n        return scope.$watch(function expressionInputWatch(scope) {\n          var newInputValue = inputExpressions(scope);\n          if (!expressionInputDirtyCheck(newInputValue, oldInputValue)) {\n            lastResult = parsedExpression(scope);\n            oldInputValue = newInputValue && getValueOf(newInputValue);\n          }\n          return lastResult;\n        }, listener, objectEquality);\n      }\n\n      var oldInputValueOfValues = [];\n      for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n        oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails\n      }\n\n      return scope.$watch(function expressionInputsWatch(scope) {\n        var changed = false;\n\n        for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n          var newInputValue = inputExpressions[i](scope);\n          if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i]))) {\n            oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue);\n          }\n        }\n\n        if (changed) {\n          lastResult = parsedExpression(scope);\n        }\n\n        return lastResult;\n      }, listener, objectEquality);\n    }\n\n    function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch, lastValue;\n      return unwatch = scope.$watch(function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }, function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener.apply(this, arguments);\n        }\n        if (isDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isDefined(lastValue)) {\n              unwatch();\n            }\n          });\n        }\n      }, objectEquality);\n    }\n\n    function oneTimeLiteralWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch, lastValue;\n      return unwatch = scope.$watch(function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }, function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener.call(this, value, old, scope);\n        }\n        if (isAllDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isAllDefined(lastValue)) unwatch();\n          });\n        }\n      }, objectEquality);\n\n      function isAllDefined(value) {\n        var allDefined = true;\n        forEach(value, function(val) {\n          if (!isDefined(val)) allDefined = false;\n        });\n        return allDefined;\n      }\n    }\n\n    function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch;\n      return unwatch = scope.$watch(function constantWatch(scope) {\n        return parsedExpression(scope);\n      }, function constantListener(value, old, scope) {\n        if (isFunction(listener)) {\n          listener.apply(this, arguments);\n        }\n        unwatch();\n      }, objectEquality);\n    }\n\n    function addInterceptor(parsedExpression, interceptorFn) {\n      if (!interceptorFn) return parsedExpression;\n      var watchDelegate = parsedExpression.$$watchDelegate;\n\n      var regularWatch =\n          watchDelegate !== oneTimeLiteralWatchDelegate &&\n          watchDelegate !== oneTimeWatchDelegate;\n\n      var fn = regularWatch ? function regularInterceptedExpression(scope, locals) {\n        var value = parsedExpression(scope, locals);\n        return interceptorFn(value, scope, locals);\n      } : function oneTimeInterceptedExpression(scope, locals) {\n        var value = parsedExpression(scope, locals);\n        var result = interceptorFn(value, scope, locals);\n        // we only return the interceptor's result if the\n        // initial value is defined (for bind-once)\n        return isDefined(value) ? result : value;\n      };\n\n      // Propagate $$watchDelegates other then inputsWatchDelegate\n      if (parsedExpression.$$watchDelegate &&\n          parsedExpression.$$watchDelegate !== inputsWatchDelegate) {\n        fn.$$watchDelegate = parsedExpression.$$watchDelegate;\n      } else if (!interceptorFn.$stateful) {\n        // If there is an interceptor, but no watchDelegate then treat the interceptor like\n        // we treat filters - it is assumed to be a pure function unless flagged with $stateful\n        fn.$$watchDelegate = inputsWatchDelegate;\n        fn.inputs = [parsedExpression];\n      }\n\n      return fn;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $q\n * @requires $rootScope\n *\n * @description\n * A service that helps you run functions asynchronously, and use their return values (or exceptions)\n * when they are done processing.\n *\n * This is an implementation of promises/deferred objects inspired by\n * [Kris Kowal's Q](https://github.com/kriskowal/q).\n *\n * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred\n * implementations, and the other which resembles ES6 promises to some degree.\n *\n * # $q constructor\n *\n * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver`\n * function as the first argument. This is similar to the native Promise implementation from ES6 Harmony,\n * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).\n *\n * While the constructor-style use is supported, not all of the supporting methods from ES6 Harmony promises are\n * available yet.\n *\n * It can be used like so:\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     // perform some asynchronous operation, resolve or reject the promise when appropriate.\n *     return $q(function(resolve, reject) {\n *       setTimeout(function() {\n *         if (okToGreet(name)) {\n *           resolve('Hello, ' + name + '!');\n *         } else {\n *           reject('Greeting ' + name + ' is not allowed.');\n *         }\n *       }, 1000);\n *     });\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   });\n * ```\n *\n * Note: progress/notify callbacks are not currently supported via the ES6-style interface.\n *\n * However, the more traditional CommonJS-style usage is still available, and documented below.\n *\n * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an\n * interface for interacting with an object that represents the result of an action that is\n * performed asynchronously, and may or may not be finished at any given point in time.\n *\n * From the perspective of dealing with error handling, deferred and promise APIs are to\n * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     var deferred = $q.defer();\n *\n *     setTimeout(function() {\n *       deferred.notify('About to greet ' + name + '.');\n *\n *       if (okToGreet(name)) {\n *         deferred.resolve('Hello, ' + name + '!');\n *       } else {\n *         deferred.reject('Greeting ' + name + ' is not allowed.');\n *       }\n *     }, 1000);\n *\n *     return deferred.promise;\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   }, function(update) {\n *     alert('Got notification: ' + update);\n *   });\n * ```\n *\n * At first it might not be obvious why this extra complexity is worth the trouble. The payoff\n * comes in the way of guarantees that promise and deferred APIs make, see\n * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.\n *\n * Additionally the promise api allows for composition that is very hard to do with the\n * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.\n * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the\n * section on serial or parallel joining of promises.\n *\n * # The Deferred API\n *\n * A new instance of deferred is constructed by calling `$q.defer()`.\n *\n * The purpose of the deferred object is to expose the associated Promise instance as well as APIs\n * that can be used for signaling the successful or unsuccessful completion, as well as the status\n * of the task.\n *\n * **Methods**\n *\n * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection\n *   constructed via `$q.reject`, the promise will be rejected instead.\n * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to\n *   resolving it with a rejection constructed via `$q.reject`.\n * - `notify(value)` - provides updates on the status of the promise's execution. This may be called\n *   multiple times before the promise is either resolved or rejected.\n *\n * **Properties**\n *\n * - promise – `{Promise}` – promise object associated with this deferred.\n *\n *\n * # The Promise API\n *\n * A new promise instance is created when a deferred instance is created and can be retrieved by\n * calling `deferred.promise`.\n *\n * The purpose of the promise object is to allow for interested parties to get access to the result\n * of the deferred task when it completes.\n *\n * **Methods**\n *\n * - `then(successCallback, errorCallback, notifyCallback)` – regardless of when the promise was or\n *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously\n *   as soon as the result is available. The callbacks are called with a single argument: the result\n *   or rejection reason. Additionally, the notify callback may be called zero or more times to\n *   provide a progress indication, before the promise is resolved or rejected.\n *\n *   This method *returns a new promise* which is resolved or rejected via the return value of the\n *   `successCallback`, `errorCallback`. It also notifies via the return value of the\n *   `notifyCallback` method. The promise cannot be resolved or rejected from the notifyCallback\n *   method.\n *\n * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`\n *\n * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise,\n *   but to do so without modifying the final value. This is useful to release resources or do some\n *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full\n *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for\n *   more information.\n *\n * # Chaining promises\n *\n * Because calling the `then` method of a promise returns a new derived promise, it is easily\n * possible to create a chain of promises:\n *\n * ```js\n *   promiseB = promiseA.then(function(result) {\n *     return result + 1;\n *   });\n *\n *   // promiseB will be resolved immediately after promiseA is resolved and its value\n *   // will be the result of promiseA incremented by 1\n * ```\n *\n * It is possible to create chains of any length and since a promise can be resolved with another\n * promise (which will defer its resolution further), it is possible to pause/defer resolution of\n * the promises at any point in the chain. This makes it possible to implement powerful APIs like\n * $http's response interceptors.\n *\n *\n * # Differences between Kris Kowal's Q and $q\n *\n *  There are two main differences:\n *\n * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation\n *   mechanism in angular, which means faster propagation of resolution or rejection into your\n *   models and avoiding unnecessary browser repaints, which would result in flickering UI.\n * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains\n *   all the important functionality needed for common async tasks.\n *\n *  # Testing\n *\n *  ```js\n *    it('should simulate promise', inject(function($q, $rootScope) {\n *      var deferred = $q.defer();\n *      var promise = deferred.promise;\n *      var resolvedValue;\n *\n *      promise.then(function(value) { resolvedValue = value; });\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Simulate resolving of promise\n *      deferred.resolve(123);\n *      // Note that the 'then' function does not get called synchronously.\n *      // This is because we want the promise API to always be async, whether or not\n *      // it got called synchronously or asynchronously.\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Propagate promise resolution to 'then' functions using $apply().\n *      $rootScope.$apply();\n *      expect(resolvedValue).toEqual(123);\n *    }));\n *  ```\n *\n * @param {function(function, function)} resolver Function which is responsible for resolving or\n *   rejecting the newly created promise. The first parameter is a function which resolves the\n *   promise, the second parameter is a function which rejects the promise.\n *\n * @returns {Promise} The newly created promise.\n */\nfunction $QProvider() {\n\n  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $rootScope.$evalAsync(callback);\n    }, $exceptionHandler);\n  }];\n}\n\nfunction $$QProvider() {\n  this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $browser.defer(callback);\n    }, $exceptionHandler);\n  }];\n}\n\n/**\n * Constructs a promise manager.\n *\n * @param {function(function)} nextTick Function for executing functions in the next turn.\n * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for\n *     debugging purposes.\n * @returns {object} Promise manager.\n */\nfunction qFactory(nextTick, exceptionHandler) {\n  var $qMinErr = minErr('$q', TypeError);\n  function callOnce(self, resolveFn, rejectFn) {\n    var called = false;\n    function wrap(fn) {\n      return function(value) {\n        if (called) return;\n        called = true;\n        fn.call(self, value);\n      };\n    }\n\n    return [wrap(resolveFn), wrap(rejectFn)];\n  }\n\n  /**\n   * @ngdoc method\n   * @name ng.$q#defer\n   * @kind function\n   *\n   * @description\n   * Creates a `Deferred` object which represents a task which will finish in the future.\n   *\n   * @returns {Deferred} Returns a new instance of deferred.\n   */\n  var defer = function() {\n    return new Deferred();\n  };\n\n  function Promise() {\n    this.$$state = { status: 0 };\n  }\n\n  Promise.prototype = {\n    then: function(onFulfilled, onRejected, progressBack) {\n      var result = new Deferred();\n\n      this.$$state.pending = this.$$state.pending || [];\n      this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]);\n      if (this.$$state.status > 0) scheduleProcessQueue(this.$$state);\n\n      return result.promise;\n    },\n\n    \"catch\": function(callback) {\n      return this.then(null, callback);\n    },\n\n    \"finally\": function(callback, progressBack) {\n      return this.then(function(value) {\n        return handleCallback(value, true, callback);\n      }, function(error) {\n        return handleCallback(error, false, callback);\n      }, progressBack);\n    }\n  };\n\n  //Faster, more basic than angular.bind http://jsperf.com/angular-bind-vs-custom-vs-native\n  function simpleBind(context, fn) {\n    return function(value) {\n      fn.call(context, value);\n    };\n  }\n\n  function processQueue(state) {\n    var fn, promise, pending;\n\n    pending = state.pending;\n    state.processScheduled = false;\n    state.pending = undefined;\n    for (var i = 0, ii = pending.length; i < ii; ++i) {\n      promise = pending[i][0];\n      fn = pending[i][state.status];\n      try {\n        if (isFunction(fn)) {\n          promise.resolve(fn(state.value));\n        } else if (state.status === 1) {\n          promise.resolve(state.value);\n        } else {\n          promise.reject(state.value);\n        }\n      } catch (e) {\n        promise.reject(e);\n        exceptionHandler(e);\n      }\n    }\n  }\n\n  function scheduleProcessQueue(state) {\n    if (state.processScheduled || !state.pending) return;\n    state.processScheduled = true;\n    nextTick(function() { processQueue(state); });\n  }\n\n  function Deferred() {\n    this.promise = new Promise();\n    //Necessary to support unbound execution :/\n    this.resolve = simpleBind(this, this.resolve);\n    this.reject = simpleBind(this, this.reject);\n    this.notify = simpleBind(this, this.notify);\n  }\n\n  Deferred.prototype = {\n    resolve: function(val) {\n      if (this.promise.$$state.status) return;\n      if (val === this.promise) {\n        this.$$reject($qMinErr(\n          'qcycle',\n          \"Expected promise to be resolved with value other than itself '{0}'\",\n          val));\n      } else {\n        this.$$resolve(val);\n      }\n\n    },\n\n    $$resolve: function(val) {\n      var then, fns;\n\n      fns = callOnce(this, this.$$resolve, this.$$reject);\n      try {\n        if ((isObject(val) || isFunction(val))) then = val && val.then;\n        if (isFunction(then)) {\n          this.promise.$$state.status = -1;\n          then.call(val, fns[0], fns[1], this.notify);\n        } else {\n          this.promise.$$state.value = val;\n          this.promise.$$state.status = 1;\n          scheduleProcessQueue(this.promise.$$state);\n        }\n      } catch (e) {\n        fns[1](e);\n        exceptionHandler(e);\n      }\n    },\n\n    reject: function(reason) {\n      if (this.promise.$$state.status) return;\n      this.$$reject(reason);\n    },\n\n    $$reject: function(reason) {\n      this.promise.$$state.value = reason;\n      this.promise.$$state.status = 2;\n      scheduleProcessQueue(this.promise.$$state);\n    },\n\n    notify: function(progress) {\n      var callbacks = this.promise.$$state.pending;\n\n      if ((this.promise.$$state.status <= 0) && callbacks && callbacks.length) {\n        nextTick(function() {\n          var callback, result;\n          for (var i = 0, ii = callbacks.length; i < ii; i++) {\n            result = callbacks[i][0];\n            callback = callbacks[i][3];\n            try {\n              result.notify(isFunction(callback) ? callback(progress) : progress);\n            } catch (e) {\n              exceptionHandler(e);\n            }\n          }\n        });\n      }\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $q#reject\n   * @kind function\n   *\n   * @description\n   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be\n   * used to forward rejection in a chain of promises. If you are dealing with the last promise in\n   * a promise chain, you don't need to worry about it.\n   *\n   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of\n   * `reject` as the `throw` keyword in JavaScript. This also means that if you \"catch\" an error via\n   * a promise error callback and you want to forward the error to the promise derived from the\n   * current promise, you have to \"rethrow\" the error by returning a rejection constructed via\n   * `reject`.\n   *\n   * ```js\n   *   promiseB = promiseA.then(function(result) {\n   *     // success: do something and resolve promiseB\n   *     //          with the old or a new result\n   *     return result;\n   *   }, function(reason) {\n   *     // error: handle the error if possible and\n   *     //        resolve promiseB with newPromiseOrValue,\n   *     //        otherwise forward the rejection to promiseB\n   *     if (canHandle(reason)) {\n   *      // handle the error and recover\n   *      return newPromiseOrValue;\n   *     }\n   *     return $q.reject(reason);\n   *   });\n   * ```\n   *\n   * @param {*} reason Constant, message, exception or an object representing the rejection reason.\n   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.\n   */\n  var reject = function(reason) {\n    var result = new Deferred();\n    result.reject(reason);\n    return result.promise;\n  };\n\n  var makePromise = function makePromise(value, resolved) {\n    var result = new Deferred();\n    if (resolved) {\n      result.resolve(value);\n    } else {\n      result.reject(value);\n    }\n    return result.promise;\n  };\n\n  var handleCallback = function handleCallback(value, isResolved, callback) {\n    var callbackOutput = null;\n    try {\n      if (isFunction(callback)) callbackOutput = callback();\n    } catch (e) {\n      return makePromise(e, false);\n    }\n    if (isPromiseLike(callbackOutput)) {\n      return callbackOutput.then(function() {\n        return makePromise(value, isResolved);\n      }, function(error) {\n        return makePromise(error, false);\n      });\n    } else {\n      return makePromise(value, isResolved);\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $q#when\n   * @kind function\n   *\n   * @description\n   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.\n   * This is useful when you are dealing with an object that might or might not be a promise, or if\n   * the promise comes from a source that can't be trusted.\n   *\n   * @param {*} value Value or a promise\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n\n\n  var when = function(value, callback, errback, progressBack) {\n    var result = new Deferred();\n    result.resolve(value);\n    return result.promise.then(callback, errback, progressBack);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $q#all\n   * @kind function\n   *\n   * @description\n   * Combines multiple promises into a single promise that is resolved when all of the input\n   * promises are resolved.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,\n   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.\n   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected\n   *   with the same rejection value.\n   */\n\n  function all(promises) {\n    var deferred = new Deferred(),\n        counter = 0,\n        results = isArray(promises) ? [] : {};\n\n    forEach(promises, function(promise, key) {\n      counter++;\n      when(promise).then(function(value) {\n        if (results.hasOwnProperty(key)) return;\n        results[key] = value;\n        if (!(--counter)) deferred.resolve(results);\n      }, function(reason) {\n        if (results.hasOwnProperty(key)) return;\n        deferred.reject(reason);\n      });\n    });\n\n    if (counter === 0) {\n      deferred.resolve(results);\n    }\n\n    return deferred.promise;\n  }\n\n  var $Q = function Q(resolver) {\n    if (!isFunction(resolver)) {\n      throw $qMinErr('norslvr', \"Expected resolverFn, got '{0}'\", resolver);\n    }\n\n    if (!(this instanceof Q)) {\n      // More useful when $Q is the Promise itself.\n      return new Q(resolver);\n    }\n\n    var deferred = new Deferred();\n\n    function resolveFn(value) {\n      deferred.resolve(value);\n    }\n\n    function rejectFn(reason) {\n      deferred.reject(reason);\n    }\n\n    resolver(resolveFn, rejectFn);\n\n    return deferred.promise;\n  };\n\n  $Q.defer = defer;\n  $Q.reject = reject;\n  $Q.when = when;\n  $Q.all = all;\n\n  return $Q;\n}\n\nfunction $$RAFProvider() { //rAF\n  this.$get = ['$window', '$timeout', function($window, $timeout) {\n    var requestAnimationFrame = $window.requestAnimationFrame ||\n                                $window.webkitRequestAnimationFrame;\n\n    var cancelAnimationFrame = $window.cancelAnimationFrame ||\n                               $window.webkitCancelAnimationFrame ||\n                               $window.webkitCancelRequestAnimationFrame;\n\n    var rafSupported = !!requestAnimationFrame;\n    var rafFn = rafSupported\n      ? function(fn) {\n          var id = requestAnimationFrame(fn);\n          return function() {\n            cancelAnimationFrame(id);\n          };\n        }\n      : function(fn) {\n          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666\n          return function() {\n            $timeout.cancel(timer);\n          };\n        };\n\n    queueFn.supported = rafSupported;\n\n    var cancelLastRAF;\n    var taskCount = 0;\n    var taskQueue = [];\n    return queueFn;\n\n    function flush() {\n      for (var i = 0; i < taskQueue.length; i++) {\n        var task = taskQueue[i];\n        if (task) {\n          taskQueue[i] = null;\n          task();\n        }\n      }\n      taskCount = taskQueue.length = 0;\n    }\n\n    function queueFn(asyncFn) {\n      var index = taskQueue.length;\n\n      taskCount++;\n      taskQueue.push(asyncFn);\n\n      if (index === 0) {\n        cancelLastRAF = rafFn(flush);\n      }\n\n      return function cancelQueueFn() {\n        if (index >= 0) {\n          taskQueue[index] = null;\n          index = null;\n\n          if (--taskCount === 0 && cancelLastRAF) {\n            cancelLastRAF();\n            cancelLastRAF = null;\n            taskQueue.length = 0;\n          }\n        }\n      };\n    }\n  }];\n}\n\n/**\n * DESIGN NOTES\n *\n * The design decisions behind the scope are heavily favored for speed and memory consumption.\n *\n * The typical use of scope is to watch the expressions, which most of the time return the same\n * value as last time so we optimize the operation.\n *\n * Closures construction is expensive in terms of speed as well as memory:\n *   - No closures, instead use prototypical inheritance for API\n *   - Internal state needs to be stored on scope directly, which means that private state is\n *     exposed as $$____ properties\n *\n * Loop operations are optimized by using while(count--) { ... }\n *   - this means that in order to keep the same order of execution as addition we have to add\n *     items to the array at the beginning (unshift) instead of at the end (push)\n *\n * Child scopes are created and removed often\n *   - Using an array would be slow since inserts in middle are expensive so we use linked list\n *\n * There are few watches then a lot of observers. This is why you don't want the observer to be\n * implemented in the same way as watch. Watch requires return of initialization function which\n * are expensive to construct.\n */\n\n\n/**\n * @ngdoc provider\n * @name $rootScopeProvider\n * @description\n *\n * Provider for the $rootScope service.\n */\n\n/**\n * @ngdoc method\n * @name $rootScopeProvider#digestTtl\n * @description\n *\n * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and\n * assuming that the model is unstable.\n *\n * The current default is 10 iterations.\n *\n * In complex applications it's possible that the dependencies between `$watch`s will result in\n * several digest iterations. However if an application needs more than the default 10 digest\n * iterations for its model to stabilize then you should investigate what is causing the model to\n * continuously change during the digest.\n *\n * Increasing the TTL could have performance implications, so you should not change it without\n * proper justification.\n *\n * @param {number} limit The number of digest iterations.\n */\n\n\n/**\n * @ngdoc service\n * @name $rootScope\n * @description\n *\n * Every application has a single root {@link ng.$rootScope.Scope scope}.\n * All other scopes are descendant scopes of the root scope. Scopes provide separation\n * between the model and the view, via a mechanism for watching the model for changes.\n * They also provide an event emission/broadcast and subscription facility. See the\n * {@link guide/scope developer guide on scopes}.\n */\nfunction $RootScopeProvider() {\n  var TTL = 10;\n  var $rootScopeMinErr = minErr('$rootScope');\n  var lastDirtyWatch = null;\n  var applyAsyncId = null;\n\n  this.digestTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n    }\n    return TTL;\n  };\n\n  function createChildScopeClass(parent) {\n    function ChildScope() {\n      this.$$watchers = this.$$nextSibling =\n          this.$$childHead = this.$$childTail = null;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$id = nextUid();\n      this.$$ChildScope = null;\n    }\n    ChildScope.prototype = parent;\n    return ChildScope;\n  }\n\n  this.$get = ['$injector', '$exceptionHandler', '$parse', '$browser',\n      function($injector, $exceptionHandler, $parse, $browser) {\n\n    function destroyChildScope($event) {\n        $event.currentScope.$$destroyed = true;\n    }\n\n    /**\n     * @ngdoc type\n     * @name $rootScope.Scope\n     *\n     * @description\n     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the\n     * {@link auto.$injector $injector}. Child scopes are created using the\n     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when\n     * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for\n     * an in-depth introduction and usage examples.\n     *\n     *\n     * # Inheritance\n     * A scope can inherit from a parent scope, as in this example:\n     * ```js\n         var parent = $rootScope;\n         var child = parent.$new();\n\n         parent.salutation = \"Hello\";\n         expect(child.salutation).toEqual('Hello');\n\n         child.salutation = \"Welcome\";\n         expect(child.salutation).toEqual('Welcome');\n         expect(parent.salutation).toEqual('Hello');\n     * ```\n     *\n     * When interacting with `Scope` in tests, additional helper methods are available on the\n     * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional\n     * details.\n     *\n     *\n     * @param {Object.<string, function()>=} providers Map of service factory which need to be\n     *                                       provided for the current scope. Defaults to {@link ng}.\n     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should\n     *                              append/override services provided by `providers`. This is handy\n     *                              when unit-testing and having the need to override a default\n     *                              service.\n     * @returns {Object} Newly created scope.\n     *\n     */\n    function Scope() {\n      this.$id = nextUid();\n      this.$$phase = this.$parent = this.$$watchers =\n                     this.$$nextSibling = this.$$prevSibling =\n                     this.$$childHead = this.$$childTail = null;\n      this.$root = this;\n      this.$$destroyed = false;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$isolateBindings = null;\n    }\n\n    /**\n     * @ngdoc property\n     * @name $rootScope.Scope#$id\n     *\n     * @description\n     * Unique scope ID (monotonically increasing) useful for debugging.\n     */\n\n     /**\n      * @ngdoc property\n      * @name $rootScope.Scope#$parent\n      *\n      * @description\n      * Reference to the parent scope.\n      */\n\n      /**\n       * @ngdoc property\n       * @name $rootScope.Scope#$root\n       *\n       * @description\n       * Reference to the root scope.\n       */\n\n    Scope.prototype = {\n      constructor: Scope,\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$new\n       * @kind function\n       *\n       * @description\n       * Creates a new child {@link ng.$rootScope.Scope scope}.\n       *\n       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.\n       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.\n       *\n       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is\n       * desired for the scope and its child scopes to be permanently detached from the parent and\n       * thus stop participating in model change detection and listener notification by invoking.\n       *\n       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the\n       *         parent scope. The scope is isolated, as it can not see parent scope properties.\n       *         When creating widgets, it is useful for the widget to not accidentally read parent\n       *         state.\n       *\n       * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent`\n       *                              of the newly created scope. Defaults to `this` scope if not provided.\n       *                              This is used when creating a transclude scope to correctly place it\n       *                              in the scope hierarchy while maintaining the correct prototypical\n       *                              inheritance.\n       *\n       * @returns {Object} The newly created child scope.\n       *\n       */\n      $new: function(isolate, parent) {\n        var child;\n\n        parent = parent || this;\n\n        if (isolate) {\n          child = new Scope();\n          child.$root = this.$root;\n        } else {\n          // Only create a child scope class if somebody asks for one,\n          // but cache it to allow the VM to optimize lookups.\n          if (!this.$$ChildScope) {\n            this.$$ChildScope = createChildScopeClass(this);\n          }\n          child = new this.$$ChildScope();\n        }\n        child.$parent = parent;\n        child.$$prevSibling = parent.$$childTail;\n        if (parent.$$childHead) {\n          parent.$$childTail.$$nextSibling = child;\n          parent.$$childTail = child;\n        } else {\n          parent.$$childHead = parent.$$childTail = child;\n        }\n\n        // When the new scope is not isolated or we inherit from `this`, and\n        // the parent scope is destroyed, the property `$$destroyed` is inherited\n        // prototypically. In all other cases, this property needs to be set\n        // when the parent scope is destroyed.\n        // The listener needs to be added after the parent is set\n        if (isolate || parent != this) child.$on('$destroy', destroyChildScope);\n\n        return child;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watch\n       * @kind function\n       *\n       * @description\n       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.\n       *\n       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest\n       *   $digest()} and should return the value that will be watched. (Since\n       *   {@link ng.$rootScope.Scope#$digest $digest()} reruns when it detects changes the\n       *   `watchExpression` can execute multiple times per\n       *   {@link ng.$rootScope.Scope#$digest $digest()} and should be idempotent.)\n       * - The `listener` is called only when the value from the current `watchExpression` and the\n       *   previous call to `watchExpression` are not equal (with the exception of the initial run,\n       *   see below). Inequality is determined according to reference inequality,\n       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)\n       *    via the `!==` Javascript operator, unless `objectEquality == true`\n       *   (see next point)\n       * - When `objectEquality == true`, inequality of the `watchExpression` is determined\n       *   according to the {@link angular.equals} function. To save the value of the object for\n       *   later comparison, the {@link angular.copy} function is used. This therefore means that\n       *   watching complex objects will have adverse memory and performance implications.\n       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.\n       *   This is achieved by rerunning the watchers until no changes are detected. The rerun\n       *   iteration limit is 10 to prevent an infinite loop deadlock.\n       *\n       *\n       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,\n       * you can register a `watchExpression` function with no `listener`. (Be prepared for\n       * multiple calls to your `watchExpression` because it will execute multiple times in a\n       * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.)\n       *\n       * After a watcher is registered with the scope, the `listener` fn is called asynchronously\n       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the\n       * watcher. In rare cases, this is undesirable because the listener is called when the result\n       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you\n       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the\n       * listener was called due to initialization.\n       *\n       *\n       *\n       * # Example\n       * ```js\n           // let's assume that scope was dependency injected as the $rootScope\n           var scope = $rootScope;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n\n\n\n           // Using a function as a watchExpression\n           var food;\n           scope.foodCounter = 0;\n           expect(scope.foodCounter).toEqual(0);\n           scope.$watch(\n             // This function returns the value being watched. It is called for each turn of the $digest loop\n             function() { return food; },\n             // This is the change listener, called when the value returned from the above function changes\n             function(newValue, oldValue) {\n               if ( newValue !== oldValue ) {\n                 // Only increment the counter if the value changed\n                 scope.foodCounter = scope.foodCounter + 1;\n               }\n             }\n           );\n           // No digest has been run so the counter will be zero\n           expect(scope.foodCounter).toEqual(0);\n\n           // Run the digest but since food has not changed count will still be zero\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(0);\n\n           // Update food and run digest.  Now the counter will increment\n           food = 'cheeseburger';\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(1);\n\n       * ```\n       *\n       *\n       *\n       * @param {(function()|string)} watchExpression Expression that is evaluated on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers\n       *    a call to the `listener`.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(scope)`: called with current `scope` as a parameter.\n       * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value\n       *    of `watchExpression` changes.\n       *\n       *    - `newVal` contains the current value of the `watchExpression`\n       *    - `oldVal` contains the previous value of the `watchExpression`\n       *    - `scope` refers to the current scope\n       * @param {boolean=} objectEquality Compare for object equality using {@link angular.equals} instead of\n       *     comparing for reference equality.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $watch: function(watchExp, listener, objectEquality) {\n        var get = $parse(watchExp);\n\n        if (get.$$watchDelegate) {\n          return get.$$watchDelegate(this, listener, objectEquality, get);\n        }\n        var scope = this,\n            array = scope.$$watchers,\n            watcher = {\n              fn: listener,\n              last: initWatchVal,\n              get: get,\n              exp: watchExp,\n              eq: !!objectEquality\n            };\n\n        lastDirtyWatch = null;\n\n        if (!isFunction(listener)) {\n          watcher.fn = noop;\n        }\n\n        if (!array) {\n          array = scope.$$watchers = [];\n        }\n        // we use unshift since we use a while loop in $digest for speed.\n        // the while loop reads in reverse order.\n        array.unshift(watcher);\n\n        return function deregisterWatch() {\n          arrayRemove(array, watcher);\n          lastDirtyWatch = null;\n        };\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchGroup\n       * @kind function\n       *\n       * @description\n       * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`.\n       * If any one expression in the collection changes the `listener` is executed.\n       *\n       * - The items in the `watchExpressions` array are observed via standard $watch operation and are examined on every\n       *   call to $digest() to see if any items changes.\n       * - The `listener` is called whenever any expression in the `watchExpressions` array changes.\n       *\n       * @param {Array.<string|Function(scope)>} watchExpressions Array of expressions that will be individually\n       * watched using {@link ng.$rootScope.Scope#$watch $watch()}\n       *\n       * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any\n       *    expression in `watchExpressions` changes\n       *    The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    The `scope` refers to the current scope.\n       * @returns {function()} Returns a de-registration function for all listeners.\n       */\n      $watchGroup: function(watchExpressions, listener) {\n        var oldValues = new Array(watchExpressions.length);\n        var newValues = new Array(watchExpressions.length);\n        var deregisterFns = [];\n        var self = this;\n        var changeReactionScheduled = false;\n        var firstRun = true;\n\n        if (!watchExpressions.length) {\n          // No expressions means we call the listener ASAP\n          var shouldCall = true;\n          self.$evalAsync(function() {\n            if (shouldCall) listener(newValues, newValues, self);\n          });\n          return function deregisterWatchGroup() {\n            shouldCall = false;\n          };\n        }\n\n        if (watchExpressions.length === 1) {\n          // Special case size of one\n          return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) {\n            newValues[0] = value;\n            oldValues[0] = oldValue;\n            listener(newValues, (value === oldValue) ? newValues : oldValues, scope);\n          });\n        }\n\n        forEach(watchExpressions, function(expr, i) {\n          var unwatchFn = self.$watch(expr, function watchGroupSubAction(value, oldValue) {\n            newValues[i] = value;\n            oldValues[i] = oldValue;\n            if (!changeReactionScheduled) {\n              changeReactionScheduled = true;\n              self.$evalAsync(watchGroupAction);\n            }\n          });\n          deregisterFns.push(unwatchFn);\n        });\n\n        function watchGroupAction() {\n          changeReactionScheduled = false;\n\n          if (firstRun) {\n            firstRun = false;\n            listener(newValues, newValues, self);\n          } else {\n            listener(newValues, oldValues, self);\n          }\n        }\n\n        return function deregisterWatchGroup() {\n          while (deregisterFns.length) {\n            deregisterFns.shift()();\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchCollection\n       * @kind function\n       *\n       * @description\n       * Shallow watches the properties of an object and fires whenever any of the properties change\n       * (for arrays, this implies watching the array items; for object maps, this implies watching\n       * the properties). If a change is detected, the `listener` callback is fired.\n       *\n       * - The `obj` collection is observed via standard $watch operation and is examined on every\n       *   call to $digest() to see if any items have been added, removed, or moved.\n       * - The `listener` is called whenever anything within the `obj` has changed. Examples include\n       *   adding, removing, and moving items belonging to an object or array.\n       *\n       *\n       * # Example\n       * ```js\n          $scope.names = ['igor', 'matias', 'misko', 'james'];\n          $scope.dataCount = 4;\n\n          $scope.$watchCollection('names', function(newNames, oldNames) {\n            $scope.dataCount = newNames.length;\n          });\n\n          expect($scope.dataCount).toEqual(4);\n          $scope.$digest();\n\n          //still at 4 ... no changes\n          expect($scope.dataCount).toEqual(4);\n\n          $scope.names.pop();\n          $scope.$digest();\n\n          //now there's been a change\n          expect($scope.dataCount).toEqual(3);\n       * ```\n       *\n       *\n       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The\n       *    expression value should evaluate to an object or an array which is observed on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the\n       *    collection will trigger a call to the `listener`.\n       *\n       * @param {function(newCollection, oldCollection, scope)} listener a callback function called\n       *    when a change is detected.\n       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression\n       *    - The `oldCollection` object is a copy of the former collection data.\n       *      Due to performance considerations, the`oldCollection` value is computed only if the\n       *      `listener` function declares two or more arguments.\n       *    - The `scope` argument refers to the current scope.\n       *\n       * @returns {function()} Returns a de-registration function for this listener. When the\n       *    de-registration function is executed, the internal watch operation is terminated.\n       */\n      $watchCollection: function(obj, listener) {\n        $watchCollectionInterceptor.$stateful = true;\n\n        var self = this;\n        // the current value, updated on each dirty-check run\n        var newValue;\n        // a shallow copy of the newValue from the last dirty-check run,\n        // updated to match newValue during dirty-check run\n        var oldValue;\n        // a shallow copy of the newValue from when the last change happened\n        var veryOldValue;\n        // only track veryOldValue if the listener is asking for it\n        var trackVeryOldValue = (listener.length > 1);\n        var changeDetected = 0;\n        var changeDetector = $parse(obj, $watchCollectionInterceptor);\n        var internalArray = [];\n        var internalObject = {};\n        var initRun = true;\n        var oldLength = 0;\n\n        function $watchCollectionInterceptor(_value) {\n          newValue = _value;\n          var newLength, key, bothNaN, newItem, oldItem;\n\n          // If the new value is undefined, then return undefined as the watch may be a one-time watch\n          if (isUndefined(newValue)) return;\n\n          if (!isObject(newValue)) { // if primitive\n            if (oldValue !== newValue) {\n              oldValue = newValue;\n              changeDetected++;\n            }\n          } else if (isArrayLike(newValue)) {\n            if (oldValue !== internalArray) {\n              // we are transitioning from something which was not an array into array.\n              oldValue = internalArray;\n              oldLength = oldValue.length = 0;\n              changeDetected++;\n            }\n\n            newLength = newValue.length;\n\n            if (oldLength !== newLength) {\n              // if lengths do not match we need to trigger change notification\n              changeDetected++;\n              oldValue.length = oldLength = newLength;\n            }\n            // copy the items to oldValue and look for changes.\n            for (var i = 0; i < newLength; i++) {\n              oldItem = oldValue[i];\n              newItem = newValue[i];\n\n              bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n              if (!bothNaN && (oldItem !== newItem)) {\n                changeDetected++;\n                oldValue[i] = newItem;\n              }\n            }\n          } else {\n            if (oldValue !== internalObject) {\n              // we are transitioning from something which was not an object into object.\n              oldValue = internalObject = {};\n              oldLength = 0;\n              changeDetected++;\n            }\n            // copy the items to oldValue and look for changes.\n            newLength = 0;\n            for (key in newValue) {\n              if (newValue.hasOwnProperty(key)) {\n                newLength++;\n                newItem = newValue[key];\n                oldItem = oldValue[key];\n\n                if (key in oldValue) {\n                  bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n                  if (!bothNaN && (oldItem !== newItem)) {\n                    changeDetected++;\n                    oldValue[key] = newItem;\n                  }\n                } else {\n                  oldLength++;\n                  oldValue[key] = newItem;\n                  changeDetected++;\n                }\n              }\n            }\n            if (oldLength > newLength) {\n              // we used to have more keys, need to find them and destroy them.\n              changeDetected++;\n              for (key in oldValue) {\n                if (!newValue.hasOwnProperty(key)) {\n                  oldLength--;\n                  delete oldValue[key];\n                }\n              }\n            }\n          }\n          return changeDetected;\n        }\n\n        function $watchCollectionAction() {\n          if (initRun) {\n            initRun = false;\n            listener(newValue, newValue, self);\n          } else {\n            listener(newValue, veryOldValue, self);\n          }\n\n          // make a copy for the next time a collection is changed\n          if (trackVeryOldValue) {\n            if (!isObject(newValue)) {\n              //primitive\n              veryOldValue = newValue;\n            } else if (isArrayLike(newValue)) {\n              veryOldValue = new Array(newValue.length);\n              for (var i = 0; i < newValue.length; i++) {\n                veryOldValue[i] = newValue[i];\n              }\n            } else { // if object\n              veryOldValue = {};\n              for (var key in newValue) {\n                if (hasOwnProperty.call(newValue, key)) {\n                  veryOldValue[key] = newValue[key];\n                }\n              }\n            }\n          }\n        }\n\n        return this.$watch(changeDetector, $watchCollectionAction);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$digest\n       * @kind function\n       *\n       * @description\n       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and\n       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change\n       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}\n       * until no more listeners are firing. This means that it is possible to get into an infinite\n       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of\n       * iterations exceeds 10.\n       *\n       * Usually, you don't call `$digest()` directly in\n       * {@link ng.directive:ngController controllers} or in\n       * {@link ng.$compileProvider#directive directives}.\n       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within\n       * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`.\n       *\n       * If you want to be notified whenever `$digest()` is called,\n       * you can register a `watchExpression` function with\n       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.\n       *\n       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.\n       *\n       * # Example\n       * ```js\n           var scope = ...;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n       * ```\n       *\n       */\n      $digest: function() {\n        var watch, value, last,\n            watchers,\n            length,\n            dirty, ttl = TTL,\n            next, current, target = this,\n            watchLog = [],\n            logIdx, logMsg, asyncTask;\n\n        beginPhase('$digest');\n        // Check for changes to browser url that happened in sync before the call to $digest\n        $browser.$$checkUrlChange();\n\n        if (this === $rootScope && applyAsyncId !== null) {\n          // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then\n          // cancel the scheduled $apply and flush the queue of expressions to be evaluated.\n          $browser.defer.cancel(applyAsyncId);\n          flushApplyAsync();\n        }\n\n        lastDirtyWatch = null;\n\n        do { // \"while dirty\" loop\n          dirty = false;\n          current = target;\n\n          while (asyncQueue.length) {\n            try {\n              asyncTask = asyncQueue.shift();\n              asyncTask.scope.$eval(asyncTask.expression, asyncTask.locals);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n            lastDirtyWatch = null;\n          }\n\n          traverseScopesLoop:\n          do { // \"traverse the scopes\" loop\n            if ((watchers = current.$$watchers)) {\n              // process our watches\n              length = watchers.length;\n              while (length--) {\n                try {\n                  watch = watchers[length];\n                  // Most common watches are on primitives, in which case we can short\n                  // circuit it with === operator, only when === fails do we use .equals\n                  if (watch) {\n                    if ((value = watch.get(current)) !== (last = watch.last) &&\n                        !(watch.eq\n                            ? equals(value, last)\n                            : (typeof value === 'number' && typeof last === 'number'\n                               && isNaN(value) && isNaN(last)))) {\n                      dirty = true;\n                      lastDirtyWatch = watch;\n                      watch.last = watch.eq ? copy(value, null) : value;\n                      watch.fn(value, ((last === initWatchVal) ? value : last), current);\n                      if (ttl < 5) {\n                        logIdx = 4 - ttl;\n                        if (!watchLog[logIdx]) watchLog[logIdx] = [];\n                        watchLog[logIdx].push({\n                          msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp,\n                          newVal: value,\n                          oldVal: last\n                        });\n                      }\n                    } else if (watch === lastDirtyWatch) {\n                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers\n                      // have already been tested.\n                      dirty = false;\n                      break traverseScopesLoop;\n                    }\n                  }\n                } catch (e) {\n                  $exceptionHandler(e);\n                }\n              }\n            }\n\n            // Insanity Warning: scope depth-first traversal\n            // yes, this code is a bit crazy, but it works and we have tests to prove it!\n            // this piece should be kept in sync with the traversal in $broadcast\n            if (!(next = (current.$$childHead ||\n                (current !== target && current.$$nextSibling)))) {\n              while (current !== target && !(next = current.$$nextSibling)) {\n                current = current.$parent;\n              }\n            }\n          } while ((current = next));\n\n          // `break traverseScopesLoop;` takes us to here\n\n          if ((dirty || asyncQueue.length) && !(ttl--)) {\n            clearPhase();\n            throw $rootScopeMinErr('infdig',\n                '{0} $digest() iterations reached. Aborting!\\n' +\n                'Watchers fired in the last 5 iterations: {1}',\n                TTL, watchLog);\n          }\n\n        } while (dirty || asyncQueue.length);\n\n        clearPhase();\n\n        while (postDigestQueue.length) {\n          try {\n            postDigestQueue.shift()();\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        }\n      },\n\n\n      /**\n       * @ngdoc event\n       * @name $rootScope.Scope#$destroy\n       * @eventType broadcast on scope being destroyed\n       *\n       * @description\n       * Broadcasted when a scope and its children are being destroyed.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$destroy\n       * @kind function\n       *\n       * @description\n       * Removes the current scope (and all of its children) from the parent scope. Removal implies\n       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer\n       * propagate to the current scope and its children. Removal also implies that the current\n       * scope is eligible for garbage collection.\n       *\n       * The `$destroy()` is usually used by directives such as\n       * {@link ng.directive:ngRepeat ngRepeat} for managing the\n       * unrolling of the loop.\n       *\n       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.\n       * Application code can register a `$destroy` event handler that will give it a chance to\n       * perform any necessary cleanup.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n      $destroy: function() {\n        // we can't destroy the root scope or a scope that has been already destroyed\n        if (this.$$destroyed) return;\n        var parent = this.$parent;\n\n        this.$broadcast('$destroy');\n        this.$$destroyed = true;\n        if (this === $rootScope) return;\n\n        for (var eventName in this.$$listenerCount) {\n          decrementListenerCount(this, this.$$listenerCount[eventName], eventName);\n        }\n\n        // sever all the references to parent scopes (after this cleanup, the current scope should\n        // not be retained by any of our references and should be eligible for garbage collection)\n        if (parent.$$childHead == this) parent.$$childHead = this.$$nextSibling;\n        if (parent.$$childTail == this) parent.$$childTail = this.$$prevSibling;\n        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;\n        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;\n\n        // Disable listeners, watchers and apply/digest methods\n        this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop;\n        this.$on = this.$watch = this.$watchGroup = function() { return noop; };\n        this.$$listeners = {};\n\n        // All of the code below is bogus code that works around V8's memory leak via optimized code\n        // and inline caches.\n        //\n        // see:\n        // - https://code.google.com/p/v8/issues/detail?id=2073#c26\n        // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909\n        // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451\n\n        this.$parent = this.$$nextSibling = this.$$prevSibling = this.$$childHead =\n            this.$$childTail = this.$root = this.$$watchers = null;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$eval\n       * @kind function\n       *\n       * @description\n       * Executes the `expression` on the current scope and returns the result. Any exceptions in\n       * the expression are propagated (uncaught). This is useful when evaluating Angular\n       * expressions.\n       *\n       * # Example\n       * ```js\n           var scope = ng.$rootScope.Scope();\n           scope.a = 1;\n           scope.b = 2;\n\n           expect(scope.$eval('a+b')).toEqual(3);\n           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);\n       * ```\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       * @returns {*} The result of evaluating the expression.\n       */\n      $eval: function(expr, locals) {\n        return $parse(expr)(this, locals);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$evalAsync\n       * @kind function\n       *\n       * @description\n       * Executes the expression on the current scope at a later point in time.\n       *\n       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only\n       * that:\n       *\n       *   - it will execute after the function that scheduled the evaluation (preferably before DOM\n       *     rendering).\n       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after\n       *     `expression` execution.\n       *\n       * Any exceptions from the execution of the expression are forwarded to the\n       * {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle\n       * will be scheduled. However, it is encouraged to always call code that changes the model\n       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       */\n      $evalAsync: function(expr, locals) {\n        // if we are outside of an $digest loop and this is the first time we are scheduling async\n        // task also schedule async auto-flush\n        if (!$rootScope.$$phase && !asyncQueue.length) {\n          $browser.defer(function() {\n            if (asyncQueue.length) {\n              $rootScope.$digest();\n            }\n          });\n        }\n\n        asyncQueue.push({scope: this, expression: expr, locals: locals});\n      },\n\n      $$postDigest: function(fn) {\n        postDigestQueue.push(fn);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$apply\n       * @kind function\n       *\n       * @description\n       * `$apply()` is used to execute an expression in angular from outside of the angular\n       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).\n       * Because we are calling into the angular framework we need to perform proper scope life\n       * cycle of {@link ng.$exceptionHandler exception handling},\n       * {@link ng.$rootScope.Scope#$digest executing watches}.\n       *\n       * ## Life cycle\n       *\n       * # Pseudo-Code of `$apply()`\n       * ```js\n           function $apply(expr) {\n             try {\n               return $eval(expr);\n             } catch (e) {\n               $exceptionHandler(e);\n             } finally {\n               $root.$digest();\n             }\n           }\n       * ```\n       *\n       *\n       * Scope's `$apply()` method transitions through the following stages:\n       *\n       * 1. The {@link guide/expression expression} is executed using the\n       *    {@link ng.$rootScope.Scope#$eval $eval()} method.\n       * 2. Any exceptions from the execution of the expression are forwarded to the\n       *    {@link ng.$exceptionHandler $exceptionHandler} service.\n       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the\n       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.\n       *\n       *\n       * @param {(string|function())=} exp An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       *\n       * @returns {*} The result of evaluating the expression.\n       */\n      $apply: function(expr) {\n        try {\n          beginPhase('$apply');\n          return this.$eval(expr);\n        } catch (e) {\n          $exceptionHandler(e);\n        } finally {\n          clearPhase();\n          try {\n            $rootScope.$digest();\n          } catch (e) {\n            $exceptionHandler(e);\n            throw e;\n          }\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$applyAsync\n       * @kind function\n       *\n       * @description\n       * Schedule the invocation of $apply to occur at a later time. The actual time difference\n       * varies across browsers, but is typically around ~10 milliseconds.\n       *\n       * This can be used to queue up multiple expressions which need to be evaluated in the same\n       * digest.\n       *\n       * @param {(string|function())=} exp An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       */\n      $applyAsync: function(expr) {\n        var scope = this;\n        expr && applyAsyncQueue.push($applyAsyncExpression);\n        scheduleApplyAsync();\n\n        function $applyAsyncExpression() {\n          scope.$eval(expr);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$on\n       * @kind function\n       *\n       * @description\n       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for\n       * discussion of event life cycle.\n       *\n       * The event listener function format is: `function(event, args...)`. The `event` object\n       * passed into the listener has the following attributes:\n       *\n       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or\n       *     `$broadcast`-ed.\n       *   - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the\n       *     event propagates through the scope hierarchy, this property is set to null.\n       *   - `name` - `{string}`: name of the event.\n       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel\n       *     further event propagation (available only for events that were `$emit`-ed).\n       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag\n       *     to true.\n       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.\n       *\n       * @param {string} name Event name to listen on.\n       * @param {function(event, ...args)} listener Function to call when the event is emitted.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $on: function(name, listener) {\n        var namedListeners = this.$$listeners[name];\n        if (!namedListeners) {\n          this.$$listeners[name] = namedListeners = [];\n        }\n        namedListeners.push(listener);\n\n        var current = this;\n        do {\n          if (!current.$$listenerCount[name]) {\n            current.$$listenerCount[name] = 0;\n          }\n          current.$$listenerCount[name]++;\n        } while ((current = current.$parent));\n\n        var self = this;\n        return function() {\n          var indexOfListener = namedListeners.indexOf(listener);\n          if (indexOfListener !== -1) {\n            namedListeners[indexOfListener] = null;\n            decrementListenerCount(self, 1, name);\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$emit\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` upwards through the scope hierarchy notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$emit` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event traverses upwards toward the root scope and calls all\n       * registered listeners along the way. The event will stop propagating if one of the listeners\n       * cancels it.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to emit.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).\n       */\n      $emit: function(name, args) {\n        var empty = [],\n            namedListeners,\n            scope = this,\n            stopPropagation = false,\n            event = {\n              name: name,\n              targetScope: scope,\n              stopPropagation: function() {stopPropagation = true;},\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            i, length;\n\n        do {\n          namedListeners = scope.$$listeners[name] || empty;\n          event.currentScope = scope;\n          for (i = 0, length = namedListeners.length; i < length; i++) {\n\n            // if listeners were deregistered, defragment the array\n            if (!namedListeners[i]) {\n              namedListeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n            try {\n              //allow all listeners attached to the current scope to run\n              namedListeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          //if any listener on the current scope stops propagation, prevent bubbling\n          if (stopPropagation) {\n            event.currentScope = null;\n            return event;\n          }\n          //traverse upwards\n          scope = scope.$parent;\n        } while (scope);\n\n        event.currentScope = null;\n\n        return event;\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$broadcast\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$broadcast` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current\n       * scope and calls all registered listeners along the way. The event cannot be canceled.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to broadcast.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}\n       */\n      $broadcast: function(name, args) {\n        var target = this,\n            current = target,\n            next = target,\n            event = {\n              name: name,\n              targetScope: target,\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            };\n\n        if (!target.$$listenerCount[name]) return event;\n\n        var listenerArgs = concat([event], arguments, 1),\n            listeners, i, length;\n\n        //down while you can, then up and next sibling or up and next sibling until back at root\n        while ((current = next)) {\n          event.currentScope = current;\n          listeners = current.$$listeners[name] || [];\n          for (i = 0, length = listeners.length; i < length; i++) {\n            // if listeners were deregistered, defragment the array\n            if (!listeners[i]) {\n              listeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n\n            try {\n              listeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n\n          // Insanity Warning: scope depth-first traversal\n          // yes, this code is a bit crazy, but it works and we have tests to prove it!\n          // this piece should be kept in sync with the traversal in $digest\n          // (though it differs due to having the extra check for $$listenerCount)\n          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||\n              (current !== target && current.$$nextSibling)))) {\n            while (current !== target && !(next = current.$$nextSibling)) {\n              current = current.$parent;\n            }\n          }\n        }\n\n        event.currentScope = null;\n        return event;\n      }\n    };\n\n    var $rootScope = new Scope();\n\n    //The internal queues. Expose them on the $rootScope for debugging/testing purposes.\n    var asyncQueue = $rootScope.$$asyncQueue = [];\n    var postDigestQueue = $rootScope.$$postDigestQueue = [];\n    var applyAsyncQueue = $rootScope.$$applyAsyncQueue = [];\n\n    return $rootScope;\n\n\n    function beginPhase(phase) {\n      if ($rootScope.$$phase) {\n        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);\n      }\n\n      $rootScope.$$phase = phase;\n    }\n\n    function clearPhase() {\n      $rootScope.$$phase = null;\n    }\n\n\n    function decrementListenerCount(current, count, name) {\n      do {\n        current.$$listenerCount[name] -= count;\n\n        if (current.$$listenerCount[name] === 0) {\n          delete current.$$listenerCount[name];\n        }\n      } while ((current = current.$parent));\n    }\n\n    /**\n     * function used as an initial value for watchers.\n     * because it's unique we can easily tell it apart from other values\n     */\n    function initWatchVal() {}\n\n    function flushApplyAsync() {\n      while (applyAsyncQueue.length) {\n        try {\n          applyAsyncQueue.shift()();\n        } catch (e) {\n          $exceptionHandler(e);\n        }\n      }\n      applyAsyncId = null;\n    }\n\n    function scheduleApplyAsync() {\n      if (applyAsyncId === null) {\n        applyAsyncId = $browser.defer(function() {\n          $rootScope.$apply(flushApplyAsync);\n        });\n      }\n    }\n  }];\n}\n\n/**\n * @description\n * Private service to sanitize uris for links and images. Used by $compile and $sanitize.\n */\nfunction $$SanitizeUriProvider() {\n  var aHrefSanitizationWhitelist = /^\\s*(https?|ftp|mailto|tel|file):/,\n    imgSrcSanitizationWhitelist = /^\\s*((https?|ftp|file|blob):|data:image\\/)/;\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      aHrefSanitizationWhitelist = regexp;\n      return this;\n    }\n    return aHrefSanitizationWhitelist;\n  };\n\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      imgSrcSanitizationWhitelist = regexp;\n      return this;\n    }\n    return imgSrcSanitizationWhitelist;\n  };\n\n  this.$get = function() {\n    return function sanitizeUri(uri, isImage) {\n      var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;\n      var normalizedVal;\n      normalizedVal = urlResolve(uri).href;\n      if (normalizedVal !== '' && !normalizedVal.match(regex)) {\n        return 'unsafe:' + normalizedVal;\n      }\n      return uri;\n    };\n  };\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $sceMinErr = minErr('$sce');\n\nvar SCE_CONTEXTS = {\n  HTML: 'html',\n  CSS: 'css',\n  URL: 'url',\n  // RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a\n  // url.  (e.g. ng-include, script src, templateUrl)\n  RESOURCE_URL: 'resourceUrl',\n  JS: 'js'\n};\n\n// Helper functions follow.\n\nfunction adjustMatcher(matcher) {\n  if (matcher === 'self') {\n    return matcher;\n  } else if (isString(matcher)) {\n    // Strings match exactly except for 2 wildcards - '*' and '**'.\n    // '*' matches any character except those from the set ':/.?&'.\n    // '**' matches any character (like .* in a RegExp).\n    // More than 2 *'s raises an error as it's ill defined.\n    if (matcher.indexOf('***') > -1) {\n      throw $sceMinErr('iwcard',\n          'Illegal sequence *** in string matcher.  String: {0}', matcher);\n    }\n    matcher = escapeForRegexp(matcher).\n                  replace('\\\\*\\\\*', '.*').\n                  replace('\\\\*', '[^:/.?&;]*');\n    return new RegExp('^' + matcher + '$');\n  } else if (isRegExp(matcher)) {\n    // The only other type of matcher allowed is a Regexp.\n    // Match entire URL / disallow partial matches.\n    // Flags are reset (i.e. no global, ignoreCase or multiline)\n    return new RegExp('^' + matcher.source + '$');\n  } else {\n    throw $sceMinErr('imatcher',\n        'Matchers may only be \"self\", string patterns or RegExp objects');\n  }\n}\n\n\nfunction adjustMatchers(matchers) {\n  var adjustedMatchers = [];\n  if (isDefined(matchers)) {\n    forEach(matchers, function(matcher) {\n      adjustedMatchers.push(adjustMatcher(matcher));\n    });\n  }\n  return adjustedMatchers;\n}\n\n\n/**\n * @ngdoc service\n * @name $sceDelegate\n * @kind function\n *\n * @description\n *\n * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict\n * Contextual Escaping (SCE)} services to AngularJS.\n *\n * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of\n * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is\n * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to\n * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things\n * work because `$sce` delegates to `$sceDelegate` for these operations.\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.\n *\n * The default instance of `$sceDelegate` should work out of the box with little pain.  While you\n * can override it completely to change the behavior of `$sce`, the common case would\n * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting\n * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as\n * templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist\n * $sceDelegateProvider.resourceUrlWhitelist} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n */\n\n/**\n * @ngdoc provider\n * @name $sceDelegateProvider\n * @description\n *\n * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate\n * $sceDelegate} service.  This allows one to get/set the whitelists and blacklists used to ensure\n * that the URLs used for sourcing Angular templates are safe.  Refer {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and\n * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n *\n * For the general details about this service in Angular, read the main page for {@link ng.$sce\n * Strict Contextual Escaping (SCE)}.\n *\n * **Example**:  Consider the following case. <a name=\"example\"></a>\n *\n * - your app is hosted at url `http://myapp.example.com/`\n * - but some of your templates are hosted on other domains you control such as\n *   `http://srv01.assets.example.com/`,  `http://srv02.assets.example.com/`, etc.\n * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.\n *\n * Here is what a secure configuration for this scenario might look like:\n *\n * ```\n *  angular.module('myApp', []).config(function($sceDelegateProvider) {\n *    $sceDelegateProvider.resourceUrlWhitelist([\n *      // Allow same origin resource loads.\n *      'self',\n *      // Allow loading from our assets domain.  Notice the difference between * and **.\n *      'http://srv*.assets.example.com/**'\n *    ]);\n *\n *    // The blacklist overrides the whitelist so the open redirect here is blocked.\n *    $sceDelegateProvider.resourceUrlBlacklist([\n *      'http://myapp.example.com/clickThru**'\n *    ]);\n *  });\n * ```\n */\n\nfunction $SceDelegateProvider() {\n  this.SCE_CONTEXTS = SCE_CONTEXTS;\n\n  // Resource URLs can also be trusted by policy.\n  var resourceUrlWhitelist = ['self'],\n      resourceUrlBlacklist = [];\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlWhitelist\n   * @kind function\n   *\n   * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.\n   *\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.\n   *\n   *     Note: **an empty whitelist array will block all URLs**!\n   *\n   * @return {Array} the currently set whitelist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is `['self']` allowing only\n   * same origin resource requests.\n   *\n   * @description\n   * Sets/Gets the whitelist of trusted resource URLs.\n   */\n  this.resourceUrlWhitelist = function(value) {\n    if (arguments.length) {\n      resourceUrlWhitelist = adjustMatchers(value);\n    }\n    return resourceUrlWhitelist;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlBlacklist\n   * @kind function\n   *\n   * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.\n   *\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.\n   *\n   *     The typical usage for the blacklist is to **block\n   *     [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as\n   *     these would otherwise be trusted but actually return content from the redirected domain.\n   *\n   *     Finally, **the blacklist overrides the whitelist** and has the final say.\n   *\n   * @return {Array} the currently set blacklist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there\n   * is no blacklist.)\n   *\n   * @description\n   * Sets/Gets the blacklist of trusted resource URLs.\n   */\n\n  this.resourceUrlBlacklist = function(value) {\n    if (arguments.length) {\n      resourceUrlBlacklist = adjustMatchers(value);\n    }\n    return resourceUrlBlacklist;\n  };\n\n  this.$get = ['$injector', function($injector) {\n\n    var htmlSanitizer = function htmlSanitizer(html) {\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    };\n\n    if ($injector.has('$sanitize')) {\n      htmlSanitizer = $injector.get('$sanitize');\n    }\n\n\n    function matchUrl(matcher, parsedUrl) {\n      if (matcher === 'self') {\n        return urlIsSameOrigin(parsedUrl);\n      } else {\n        // definitely a regex.  See adjustMatchers()\n        return !!matcher.exec(parsedUrl.href);\n      }\n    }\n\n    function isResourceUrlAllowedByPolicy(url) {\n      var parsedUrl = urlResolve(url.toString());\n      var i, n, allowed = false;\n      // Ensure that at least one item from the whitelist allows this url.\n      for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {\n        if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {\n          allowed = true;\n          break;\n        }\n      }\n      if (allowed) {\n        // Ensure that no item from the blacklist blocked this url.\n        for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {\n          if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {\n            allowed = false;\n            break;\n          }\n        }\n      }\n      return allowed;\n    }\n\n    function generateHolderType(Base) {\n      var holderType = function TrustedValueHolderType(trustedValue) {\n        this.$$unwrapTrustedValue = function() {\n          return trustedValue;\n        };\n      };\n      if (Base) {\n        holderType.prototype = new Base();\n      }\n      holderType.prototype.valueOf = function sceValueOf() {\n        return this.$$unwrapTrustedValue();\n      };\n      holderType.prototype.toString = function sceToString() {\n        return this.$$unwrapTrustedValue().toString();\n      };\n      return holderType;\n    }\n\n    var trustedValueHolderBase = generateHolderType(),\n        byType = {};\n\n    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#trustAs\n     *\n     * @description\n     * Returns an object that is trusted by angular for use in specified strict\n     * contextual escaping contexts (such as ng-bind-html, ng-include, any src\n     * attribute interpolation, any dom event binding attribute interpolation\n     * such as for onclick,  etc.) that uses the provided value.\n     * See {@link ng.$sce $sce} for enabling strict contextual escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resourceUrl, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n    function trustAs(type, trustedValue) {\n      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (!Constructor) {\n        throw $sceMinErr('icontext',\n            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',\n            type, trustedValue);\n      }\n      if (trustedValue === null || trustedValue === undefined || trustedValue === '') {\n        return trustedValue;\n      }\n      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting\n      // mutable objects, we ensure here that the value passed in is actually a string.\n      if (typeof trustedValue !== 'string') {\n        throw $sceMinErr('itype',\n            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',\n            type);\n      }\n      return new Constructor(trustedValue);\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#valueOf\n     *\n     * @description\n     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.\n     *\n     * If the passed parameter is not a value that had been returned by {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is.\n     *\n     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}\n     *      call or anything else.\n     * @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns\n     *     `value` unchanged.\n     */\n    function valueOf(maybeTrusted) {\n      if (maybeTrusted instanceof trustedValueHolderBase) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      } else {\n        return maybeTrusted;\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#getTrusted\n     *\n     * @description\n     * Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and\n     * returns the originally supplied value if the queried context type is a supertype of the\n     * created type.  If this condition isn't satisfied, throws an exception.\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} call.\n     * @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if valid in this context.  Otherwise, throws an exception.\n     */\n    function getTrusted(type, maybeTrusted) {\n      if (maybeTrusted === null || maybeTrusted === undefined || maybeTrusted === '') {\n        return maybeTrusted;\n      }\n      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (constructor && maybeTrusted instanceof constructor) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      }\n      // If we get here, then we may only take one of two actions.\n      // 1. sanitize the value for the requested type, or\n      // 2. throw an exception.\n      if (type === SCE_CONTEXTS.RESOURCE_URL) {\n        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {\n          return maybeTrusted;\n        } else {\n          throw $sceMinErr('insecurl',\n              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',\n              maybeTrusted.toString());\n        }\n      } else if (type === SCE_CONTEXTS.HTML) {\n        return htmlSanitizer(maybeTrusted);\n      }\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    }\n\n    return { trustAs: trustAs,\n             getTrusted: getTrusted,\n             valueOf: valueOf };\n  }];\n}\n\n\n/**\n * @ngdoc provider\n * @name $sceProvider\n * @description\n *\n * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.\n * -   enable/disable Strict Contextual Escaping (SCE) in a module\n * -   override the default implementation with a custom delegate\n *\n * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.\n */\n\n/* jshint maxlen: false*/\n\n/**\n * @ngdoc service\n * @name $sce\n * @kind function\n *\n * @description\n *\n * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.\n *\n * # Strict Contextual Escaping\n *\n * Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain\n * contexts to result in a value that is marked as safe to use for that context.  One example of\n * such a context is binding arbitrary html controlled by the user via `ng-bind-html`.  We refer\n * to these contexts as privileged or SCE contexts.\n *\n * As of version 1.2, Angular ships with SCE enabled by default.\n *\n * Note:  When enabled (the default), IE<11 in quirks mode is not supported.  In this mode, IE<11 allow\n * one to execute arbitrary javascript by the use of the expression() syntax.  Refer\n * <http://blogs.msdn.com/b/ie/archive/2008/10/16/ending-expressions.aspx> to learn more about them.\n * You can ensure your document is in standards mode and not quirks mode by adding `<!doctype html>`\n * to the top of your HTML document.\n *\n * SCE assists in writing code in way that (a) is secure by default and (b) makes auditing for\n * security vulnerabilities such as XSS, clickjacking, etc. a lot easier.\n *\n * Here's an example of a binding in a privileged context:\n *\n * ```\n * <input ng-model=\"userHtml\">\n * <div ng-bind-html=\"userHtml\"></div>\n * ```\n *\n * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE\n * disabled, this application allows the user to render arbitrary HTML into the DIV.\n * In a more realistic example, one may be rendering user comments, blog articles, etc. via\n * bindings.  (HTML is just one example of a context where rendering user controlled input creates\n * security vulnerabilities.)\n *\n * For the case of HTML, you might use a library, either on the client side, or on the server side,\n * to sanitize unsafe HTML before binding to the value and rendering it in the document.\n *\n * How would you ensure that every place that used these types of bindings was bound to a value that\n * was sanitized by your library (or returned as safe for rendering by your server?)  How can you\n * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some\n * properties/fields and forgot to update the binding to the sanitized value?\n *\n * To be secure by default, you want to ensure that any such bindings are disallowed unless you can\n * determine that something explicitly says it's safe to use a value for binding in that\n * context.  You can then audit your code (a simple grep would do) to ensure that this is only done\n * for those values that you can easily tell are safe - because they were received from your server,\n * sanitized by your library, etc.  You can organize your codebase to help with this - perhaps\n * allowing only the files in a specific directory to do this.  Ensuring that the internal API\n * exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task.\n *\n * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}\n * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to\n * obtain values that will be accepted by SCE / privileged contexts.\n *\n *\n * ## How does it work?\n *\n * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted\n * $sce.getTrusted(context, value)} rather than to the value directly.  Directives use {@link\n * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the\n * {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals.\n *\n * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link\n * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly\n * simplified):\n *\n * ```\n * var ngBindHtmlDirective = ['$sce', function($sce) {\n *   return function(scope, element, attr) {\n *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {\n *       element.html(value || '');\n *     });\n *   };\n * }];\n * ```\n *\n * ## Impact on loading templates\n *\n * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as\n * `templateUrl`'s specified by {@link guide/directive directives}.\n *\n * By default, Angular only loads templates from the same domain and protocol as the application\n * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or\n * protocols, you may either either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist\n * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.\n *\n * *Please note*:\n * The browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy apply in addition to this and may further restrict whether the template is successfully\n * loaded.  This means that without the right CORS policy, loading templates from a different domain\n * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some\n * browsers.\n *\n * ## This feels like too much overhead\n *\n * It's important to remember that SCE only applies to interpolation expressions.\n *\n * If your expressions are constant literals, they're automatically trusted and you don't need to\n * call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g.\n * `<div ng-bind-html=\"'<b>implicitly trusted</b>'\"></div>`) just works.\n *\n * Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them\n * through {@link ng.$sce#getTrusted $sce.getTrusted}.  SCE doesn't play a role here.\n *\n * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load\n * templates in `ng-include` from your application's domain without having to even know about SCE.\n * It blocks loading templates from other domains or loading templates over http from an https\n * served document.  You can change these by setting your own custom {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.\n *\n * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an\n * application that's secure and can be audited to verify that with much more ease than bolting\n * security onto an application later.\n *\n * <a name=\"contexts\"></a>\n * ## What trusted context types are supported?\n *\n * | Context             | Notes          |\n * |---------------------|----------------|\n * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. |\n * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |\n * | `$sce.URL`          | For URLs that are safe to follow as links.  Currently unused (`<a href=` and `<img src=` sanitize their urls and don't constitute an SCE context. |\n * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. |\n * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |\n *\n * ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name=\"resourceUrlPatternItem\"></a>\n *\n *  Each element in these arrays must be one of the following:\n *\n *  - **'self'**\n *    - The special **string**, `'self'`, can be used to match against all URLs of the **same\n *      domain** as the application document using the **same protocol**.\n *  - **String** (except the special value `'self'`)\n *    - The string is matched against the full *normalized / absolute URL* of the resource\n *      being tested (substring matches are not good enough.)\n *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters\n *      match themselves.\n *    - `*`: matches zero or more occurrences of any character other than one of the following 6\n *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and ';'.  It's a useful wildcard for use\n *      in a whitelist.\n *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not\n *      appropriate for use in a scheme, domain, etc. as it would match too much.  (e.g.\n *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might\n *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.\n *      http://foo.example.com/templates/**).\n *  - **RegExp** (*see caveat below*)\n *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax\n *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to\n *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should\n *      have good test coverage).  For instance, the use of `.` in the regex is correct only in a\n *      small number of cases.  A `.` character in the regex used when matching the scheme or a\n *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It\n *      is highly recommended to use the string patterns and only fall back to regular expressions\n *      as a last resort.\n *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is\n *      matched against the **entire** *normalized / absolute URL* of the resource being tested\n *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags\n *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.\n *    - If you are generating your JavaScript from some other templating engine (not\n *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),\n *      remember to escape your regular expression (and be aware that you might need more than\n *      one level of escaping depending on your templating engine and the way you interpolated\n *      the value.)  Do make use of your platform's escaping mechanism as it might be good\n *      enough before coding your own.  E.g. Ruby has\n *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)\n *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).\n *      Javascript lacks a similar built in function for escaping.  Take a look at Google\n *      Closure library's [goog.string.regExpEscape(s)](\n *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.\n *\n * ## Show me an example using SCE.\n *\n * <example module=\"mySceApp\" deps=\"angular-sanitize.js\">\n * <file name=\"index.html\">\n *   <div ng-controller=\"AppController as myCtrl\">\n *     <i ng-bind-html=\"myCtrl.explicitlyTrustedHtml\" id=\"explicitlyTrustedHtml\"></i><br><br>\n *     <b>User comments</b><br>\n *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when\n *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an\n *     exploit.\n *     <div class=\"well\">\n *       <div ng-repeat=\"userComment in myCtrl.userComments\">\n *         <b>{{userComment.name}}</b>:\n *         <span ng-bind-html=\"userComment.htmlComment\" class=\"htmlComment\"></span>\n *         <br>\n *       </div>\n *     </div>\n *   </div>\n * </file>\n *\n * <file name=\"script.js\">\n *   angular.module('mySceApp', ['ngSanitize'])\n *     .controller('AppController', ['$http', '$templateCache', '$sce',\n *       function($http, $templateCache, $sce) {\n *         var self = this;\n *         $http.get(\"test_data.json\", {cache: $templateCache}).success(function(userComments) {\n *           self.userComments = userComments;\n *         });\n *         self.explicitlyTrustedHtml = $sce.trustAsHtml(\n *             '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *             'sanitization.&quot;\">Hover over this text.</span>');\n *       }]);\n * </file>\n *\n * <file name=\"test_data.json\">\n * [\n *   { \"name\": \"Alice\",\n *     \"htmlComment\":\n *         \"<span onmouseover='this.textContent=\\\"PWN3D!\\\"'>Is <i>anyone</i> reading this?</span>\"\n *   },\n *   { \"name\": \"Bob\",\n *     \"htmlComment\": \"<i>Yes!</i>  Am I the only other one?\"\n *   }\n * ]\n * </file>\n *\n * <file name=\"protractor.js\" type=\"protractor\">\n *   describe('SCE doc demo', function() {\n *     it('should sanitize untrusted values', function() {\n *       expect(element.all(by.css('.htmlComment')).first().getInnerHtml())\n *           .toBe('<span>Is <i>anyone</i> reading this?</span>');\n *     });\n *\n *     it('should NOT sanitize explicitly trusted values', function() {\n *       expect(element(by.id('explicitlyTrustedHtml')).getInnerHtml()).toBe(\n *           '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *           'sanitization.&quot;\">Hover over this text.</span>');\n *     });\n *   });\n * </file>\n * </example>\n *\n *\n *\n * ## Can I disable SCE completely?\n *\n * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits\n * for little coding overhead.  It will be much harder to take an SCE disabled application and\n * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE\n * for cases where you have a lot of existing code that was written before SCE was introduced and\n * you're migrating them a module at a time.\n *\n * That said, here's how you can completely disable SCE:\n *\n * ```\n * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {\n *   // Completely disable SCE.  For demonstration purposes only!\n *   // Do not use in new projects.\n *   $sceProvider.enabled(false);\n * });\n * ```\n *\n */\n/* jshint maxlen: 100 */\n\nfunction $SceProvider() {\n  var enabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $sceProvider#enabled\n   * @kind function\n   *\n   * @param {boolean=} value If provided, then enables/disables SCE.\n   * @return {boolean} true if SCE is enabled, false otherwise.\n   *\n   * @description\n   * Enables/disables SCE and returns the current value.\n   */\n  this.enabled = function(value) {\n    if (arguments.length) {\n      enabled = !!value;\n    }\n    return enabled;\n  };\n\n\n  /* Design notes on the default implementation for SCE.\n   *\n   * The API contract for the SCE delegate\n   * -------------------------------------\n   * The SCE delegate object must provide the following 3 methods:\n   *\n   * - trustAs(contextEnum, value)\n   *     This method is used to tell the SCE service that the provided value is OK to use in the\n   *     contexts specified by contextEnum.  It must return an object that will be accepted by\n   *     getTrusted() for a compatible contextEnum and return this value.\n   *\n   * - valueOf(value)\n   *     For values that were not produced by trustAs(), return them as is.  For values that were\n   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if\n   *     trustAs is wrapping the given values into some type, this operation unwraps it when given\n   *     such a value.\n   *\n   * - getTrusted(contextEnum, value)\n   *     This function should return the a value that is safe to use in the context specified by\n   *     contextEnum or throw and exception otherwise.\n   *\n   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be\n   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For\n   * instance, an implementation could maintain a registry of all trusted objects by context.  In\n   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would\n   * return the same object passed in if it was found in the registry under a compatible context or\n   * throw an exception otherwise.  An implementation might only wrap values some of the time based\n   * on some criteria.  getTrusted() might return a value and not throw an exception for special\n   * constants or objects even if not wrapped.  All such implementations fulfill this contract.\n   *\n   *\n   * A note on the inheritance model for SCE contexts\n   * ------------------------------------------------\n   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This\n   * is purely an implementation details.\n   *\n   * The contract is simply this:\n   *\n   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)\n   *     will also succeed.\n   *\n   * Inheritance happens to capture this in a natural way.  In some future, we\n   * may not use inheritance anymore.  That is OK because no code outside of\n   * sce.js and sceSpecs.js would need to be aware of this detail.\n   */\n\n  this.$get = ['$parse', '$sceDelegate', function(\n                $parse,   $sceDelegate) {\n    // Prereq: Ensure that we're not running in IE<11 quirks mode.  In that mode, IE < 11 allow\n    // the \"expression(javascript expression)\" syntax which is insecure.\n    if (enabled && msie < 8) {\n      throw $sceMinErr('iequirks',\n        'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' +\n        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +\n        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');\n    }\n\n    var sce = shallowCopy(SCE_CONTEXTS);\n\n    /**\n     * @ngdoc method\n     * @name $sce#isEnabled\n     * @kind function\n     *\n     * @return {Boolean} true if SCE is enabled, false otherwise.  If you want to set the value, you\n     * have to do it at module config time on {@link ng.$sceProvider $sceProvider}.\n     *\n     * @description\n     * Returns a boolean indicating if SCE is enabled.\n     */\n    sce.isEnabled = function() {\n      return enabled;\n    };\n    sce.trustAs = $sceDelegate.trustAs;\n    sce.getTrusted = $sceDelegate.getTrusted;\n    sce.valueOf = $sceDelegate.valueOf;\n\n    if (!enabled) {\n      sce.trustAs = sce.getTrusted = function(type, value) { return value; };\n      sce.valueOf = identity;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAs\n     *\n     * @description\n     * Converts Angular {@link guide/expression expression} into a function.  This is like {@link\n     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it\n     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,\n     * *result*)}\n     *\n     * @param {string} type The kind of SCE context in which this result will be used.\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n    sce.parseAs = function sceParseAs(type, expr) {\n      var parsed = $parse(expr);\n      if (parsed.literal && parsed.constant) {\n        return parsed;\n      } else {\n        return $parse(expr, function(value) {\n          return sce.getTrusted(type, value);\n        });\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAs\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.  As such,\n     * returns an object that is trusted by angular for use in specified strict contextual\n     * escaping contexts (such as ng-bind-html, ng-include, any src attribute\n     * interpolation, any dom event binding attribute interpolation such as for onclick,  etc.)\n     * that uses the provided value.  See * {@link ng.$sce $sce} for enabling strict contextual\n     * escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resource_url, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsHtml(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml\n     *     $sce.getTrustedHtml(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl\n     *     $sce.getTrustedUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl\n     *     $sce.getTrustedResourceUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the return\n     *     value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsJs(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs\n     *     $sce.getTrustedJs(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrusted\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,\n     * takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the\n     * originally supplied value if the queried context type is a supertype of the created type.\n     * If this condition isn't satisfied, throws an exception.\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`}\n     *                         call.\n     * @returns {*} The value the was originally provided to\n     *              {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context.\n     *              Otherwise, throws an exception.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedHtml(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedCss\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedCss(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedJs\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedJs(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.JS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsHtml(expression string)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsCss(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsJs(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    // Shorthand delegations.\n    var parse = sce.parseAs,\n        getTrusted = sce.getTrusted,\n        trustAs = sce.trustAs;\n\n    forEach(SCE_CONTEXTS, function(enumValue, name) {\n      var lName = lowercase(name);\n      sce[camelCase(\"parse_as_\" + lName)] = function(expr) {\n        return parse(enumValue, expr);\n      };\n      sce[camelCase(\"get_trusted_\" + lName)] = function(value) {\n        return getTrusted(enumValue, value);\n      };\n      sce[camelCase(\"trust_as_\" + lName)] = function(value) {\n        return trustAs(enumValue, value);\n      };\n    });\n\n    return sce;\n  }];\n}\n\n/**\n * !!! This is an undocumented \"private\" service !!!\n *\n * @name $sniffer\n * @requires $window\n * @requires $document\n *\n * @property {boolean} history Does the browser support html5 history api ?\n * @property {boolean} transitions Does the browser support CSS transition events ?\n * @property {boolean} animations Does the browser support CSS animation events ?\n *\n * @description\n * This is very simple implementation of testing browser's features.\n */\nfunction $SnifferProvider() {\n  this.$get = ['$window', '$document', function($window, $document) {\n    var eventSupport = {},\n        android =\n          int((/android (\\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),\n        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),\n        document = $document[0] || {},\n        vendorPrefix,\n        vendorRegex = /^(Moz|webkit|ms)(?=[A-Z])/,\n        bodyStyle = document.body && document.body.style,\n        transitions = false,\n        animations = false,\n        match;\n\n    if (bodyStyle) {\n      for (var prop in bodyStyle) {\n        if (match = vendorRegex.exec(prop)) {\n          vendorPrefix = match[0];\n          vendorPrefix = vendorPrefix.substr(0, 1).toUpperCase() + vendorPrefix.substr(1);\n          break;\n        }\n      }\n\n      if (!vendorPrefix) {\n        vendorPrefix = ('WebkitOpacity' in bodyStyle) && 'webkit';\n      }\n\n      transitions = !!(('transition' in bodyStyle) || (vendorPrefix + 'Transition' in bodyStyle));\n      animations  = !!(('animation' in bodyStyle) || (vendorPrefix + 'Animation' in bodyStyle));\n\n      if (android && (!transitions ||  !animations)) {\n        transitions = isString(document.body.style.webkitTransition);\n        animations = isString(document.body.style.webkitAnimation);\n      }\n    }\n\n\n    return {\n      // Android has history.pushState, but it does not update location correctly\n      // so let's not use the history API at all.\n      // http://code.google.com/p/android/issues/detail?id=17471\n      // https://github.com/angular/angular.js/issues/904\n\n      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has\n      // so let's not use the history API also\n      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined\n      // jshint -W018\n      history: !!($window.history && $window.history.pushState && !(android < 4) && !boxee),\n      // jshint +W018\n      hasEvent: function(event) {\n        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have\n        // it. In particular the event is not fired when backspace or delete key are pressed or\n        // when cut operation is performed.\n        // IE10+ implements 'input' event but it erroneously fires under various situations,\n        // e.g. when placeholder changes, or a form is focused.\n        if (event === 'input' && msie <= 11) return false;\n\n        if (isUndefined(eventSupport[event])) {\n          var divElm = document.createElement('div');\n          eventSupport[event] = 'on' + event in divElm;\n        }\n\n        return eventSupport[event];\n      },\n      csp: csp(),\n      vendorPrefix: vendorPrefix,\n      transitions: transitions,\n      animations: animations,\n      android: android\n    };\n  }];\n}\n\nvar $compileMinErr = minErr('$compile');\n\n/**\n * @ngdoc service\n * @name $templateRequest\n *\n * @description\n * The `$templateRequest` service runs security checks then downloads the provided template using\n * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request\n * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the\n * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the\n * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted\n * when `tpl` is of type string and `$templateCache` has the matching entry.\n *\n * @param {string|TrustedResourceUrl} tpl The HTTP request template URL\n * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty\n *\n * @return {Promise} the HTTP Promise for the given.\n *\n * @property {number} totalPendingRequests total amount of pending template requests being downloaded.\n */\nfunction $TemplateRequestProvider() {\n  this.$get = ['$templateCache', '$http', '$q', '$sce', function($templateCache, $http, $q, $sce) {\n    function handleRequestFn(tpl, ignoreRequestError) {\n      handleRequestFn.totalPendingRequests++;\n\n      // We consider the template cache holds only trusted templates, so\n      // there's no need to go through whitelisting again for keys that already\n      // are included in there. This also makes Angular accept any script\n      // directive, no matter its name. However, we still need to unwrap trusted\n      // types.\n      if (!isString(tpl) || !$templateCache.get(tpl)) {\n        tpl = $sce.getTrustedResourceUrl(tpl);\n      }\n\n      var transformResponse = $http.defaults && $http.defaults.transformResponse;\n\n      if (isArray(transformResponse)) {\n        transformResponse = transformResponse.filter(function(transformer) {\n          return transformer !== defaultHttpResponseTransform;\n        });\n      } else if (transformResponse === defaultHttpResponseTransform) {\n        transformResponse = null;\n      }\n\n      var httpOptions = {\n        cache: $templateCache,\n        transformResponse: transformResponse\n      };\n\n      return $http.get(tpl, httpOptions)\n        ['finally'](function() {\n          handleRequestFn.totalPendingRequests--;\n        })\n        .then(function(response) {\n          return response.data;\n        }, handleError);\n\n      function handleError(resp) {\n        if (!ignoreRequestError) {\n          throw $compileMinErr('tpload', 'Failed to load template: {0}', tpl);\n        }\n        return $q.reject(resp);\n      }\n    }\n\n    handleRequestFn.totalPendingRequests = 0;\n\n    return handleRequestFn;\n  }];\n}\n\nfunction $$TestabilityProvider() {\n  this.$get = ['$rootScope', '$browser', '$location',\n       function($rootScope,   $browser,   $location) {\n\n    /**\n     * @name $testability\n     *\n     * @description\n     * The private $$testability service provides a collection of methods for use when debugging\n     * or by automated test and debugging tools.\n     */\n    var testability = {};\n\n    /**\n     * @name $$testability#findBindings\n     *\n     * @description\n     * Returns an array of elements that are bound (via ng-bind or {{}})\n     * to expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The binding expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression. Filters and whitespace are ignored.\n     */\n    testability.findBindings = function(element, expression, opt_exactMatch) {\n      var bindings = element.getElementsByClassName('ng-binding');\n      var matches = [];\n      forEach(bindings, function(binding) {\n        var dataBinding = angular.element(binding).data('$binding');\n        if (dataBinding) {\n          forEach(dataBinding, function(bindingName) {\n            if (opt_exactMatch) {\n              var matcher = new RegExp('(^|\\\\s)' + escapeForRegexp(expression) + '(\\\\s|\\\\||$)');\n              if (matcher.test(bindingName)) {\n                matches.push(binding);\n              }\n            } else {\n              if (bindingName.indexOf(expression) != -1) {\n                matches.push(binding);\n              }\n            }\n          });\n        }\n      });\n      return matches;\n    };\n\n    /**\n     * @name $$testability#findModels\n     *\n     * @description\n     * Returns an array of elements that are two-way found via ng-model to\n     * expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The model expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression.\n     */\n    testability.findModels = function(element, expression, opt_exactMatch) {\n      var prefixes = ['ng-', 'data-ng-', 'ng\\\\:'];\n      for (var p = 0; p < prefixes.length; ++p) {\n        var attributeEquals = opt_exactMatch ? '=' : '*=';\n        var selector = '[' + prefixes[p] + 'model' + attributeEquals + '\"' + expression + '\"]';\n        var elements = element.querySelectorAll(selector);\n        if (elements.length) {\n          return elements;\n        }\n      }\n    };\n\n    /**\n     * @name $$testability#getLocation\n     *\n     * @description\n     * Shortcut for getting the location in a browser agnostic way. Returns\n     *     the path, search, and hash. (e.g. /path?a=b#hash)\n     */\n    testability.getLocation = function() {\n      return $location.url();\n    };\n\n    /**\n     * @name $$testability#setLocation\n     *\n     * @description\n     * Shortcut for navigating to a location without doing a full page reload.\n     *\n     * @param {string} url The location url (path, search and hash,\n     *     e.g. /path?a=b#hash) to go to.\n     */\n    testability.setLocation = function(url) {\n      if (url !== $location.url()) {\n        $location.url(url);\n        $rootScope.$digest();\n      }\n    };\n\n    /**\n     * @name $$testability#whenStable\n     *\n     * @description\n     * Calls the callback when $timeout and $http requests are completed.\n     *\n     * @param {function} callback\n     */\n    testability.whenStable = function(callback) {\n      $browser.notifyWhenNoOutstandingRequests(callback);\n    };\n\n    return testability;\n  }];\n}\n\nfunction $TimeoutProvider() {\n  this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler',\n       function($rootScope,   $browser,   $q,   $$q,   $exceptionHandler) {\n    var deferreds = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $timeout\n      *\n      * @description\n      * Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch\n      * block and delegates any exceptions to\n      * {@link ng.$exceptionHandler $exceptionHandler} service.\n      *\n      * The return value of registering a timeout function is a promise, which will be resolved when\n      * the timeout is reached and the timeout function is executed.\n      *\n      * To cancel a timeout request, call `$timeout.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to\n      * synchronously flush the queue of deferred functions.\n      *\n      * @param {function()} fn A function, whose execution should be delayed.\n      * @param {number=} [delay=0] Delay in milliseconds.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @returns {Promise} Promise that will be resolved when the timeout is reached. The value this\n      *   promise will be resolved with is the return value of the `fn` function.\n      *\n      */\n    function timeout(fn, delay, invokeApply) {\n      var skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise,\n          timeoutId;\n\n      timeoutId = $browser.defer(function() {\n        try {\n          deferred.resolve(fn());\n        } catch (e) {\n          deferred.reject(e);\n          $exceptionHandler(e);\n        }\n        finally {\n          delete deferreds[promise.$$timeoutId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }, delay);\n\n      promise.$$timeoutId = timeoutId;\n      deferreds[timeoutId] = deferred;\n\n      return promise;\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $timeout#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`. As a result of this, the promise will be\n      * resolved with a rejection.\n      *\n      * @param {Promise=} promise Promise returned by the `$timeout` function.\n      * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n      *   canceled.\n      */\n    timeout.cancel = function(promise) {\n      if (promise && promise.$$timeoutId in deferreds) {\n        deferreds[promise.$$timeoutId].reject('canceled');\n        delete deferreds[promise.$$timeoutId];\n        return $browser.defer.cancel(promise.$$timeoutId);\n      }\n      return false;\n    };\n\n    return timeout;\n  }];\n}\n\n// NOTE:  The usage of window and document instead of $window and $document here is\n// deliberate.  This service depends on the specific behavior of anchor nodes created by the\n// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and\n// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it\n// doesn't know about mocked locations and resolves URLs to the real document - which is\n// exactly the behavior needed here.  There is little value is mocking these out for this\n// service.\nvar urlParsingNode = document.createElement(\"a\");\nvar originUrl = urlResolve(window.location.href);\n\n\n/**\n *\n * Implementation Notes for non-IE browsers\n * ----------------------------------------\n * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,\n * results both in the normalizing and parsing of the URL.  Normalizing means that a relative\n * URL will be resolved into an absolute URL in the context of the application document.\n * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related\n * properties are all populated to reflect the normalized URL.  This approach has wide\n * compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc.  See\n * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *\n * Implementation Notes for IE\n * ---------------------------\n * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other\n * browsers.  However, the parsed components will not be set if the URL assigned did not specify\n * them.  (e.g. if you assign a.href = \"foo\", then a.protocol, a.host, etc. will be empty.)  We\n * work around that by performing the parsing in a 2nd step by taking a previously normalized\n * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the\n * properties such as protocol, hostname, port, etc.\n *\n * References:\n *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement\n *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *   http://url.spec.whatwg.org/#urlutils\n *   https://github.com/angular/angular.js/pull/2902\n *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/\n *\n * @kind function\n * @param {string} url The URL to be parsed.\n * @description Normalizes and parses a URL.\n * @returns {object} Returns the normalized URL as a dictionary.\n *\n *   | member name   | Description    |\n *   |---------------|----------------|\n *   | href          | A normalized version of the provided URL if it was not an absolute URL |\n *   | protocol      | The protocol including the trailing colon                              |\n *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |\n *   | search        | The search params, minus the question mark                             |\n *   | hash          | The hash string, minus the hash symbol\n *   | hostname      | The hostname\n *   | port          | The port, without \":\"\n *   | pathname      | The pathname, beginning with \"/\"\n *\n */\nfunction urlResolve(url) {\n  var href = url;\n\n  if (msie) {\n    // Normalize before parse.  Refer Implementation Notes on why this is\n    // done in two steps on IE.\n    urlParsingNode.setAttribute(\"href\", href);\n    href = urlParsingNode.href;\n  }\n\n  urlParsingNode.setAttribute('href', href);\n\n  // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n  return {\n    href: urlParsingNode.href,\n    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n    host: urlParsingNode.host,\n    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n    hostname: urlParsingNode.hostname,\n    port: urlParsingNode.port,\n    pathname: (urlParsingNode.pathname.charAt(0) === '/')\n      ? urlParsingNode.pathname\n      : '/' + urlParsingNode.pathname\n  };\n}\n\n/**\n * Parse a request URL and determine whether this is a same-origin request as the application document.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the request is for the same origin as the application document.\n */\nfunction urlIsSameOrigin(requestUrl) {\n  var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl;\n  return (parsed.protocol === originUrl.protocol &&\n          parsed.host === originUrl.host);\n}\n\n/**\n * @ngdoc service\n * @name $window\n *\n * @description\n * A reference to the browser's `window` object. While `window`\n * is globally available in JavaScript, it causes testability problems, because\n * it is a global variable. In angular we always refer to it through the\n * `$window` service, so it may be overridden, removed or mocked for testing.\n *\n * Expressions, like the one defined for the `ngClick` directive in the example\n * below, are evaluated with respect to the current scope.  Therefore, there is\n * no risk of inadvertently coding in a dependency on a global value in such an\n * expression.\n *\n * @example\n   <example module=\"windowExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('windowExample', [])\n           .controller('ExampleController', ['$scope', '$window', function($scope, $window) {\n             $scope.greeting = 'Hello, World!';\n             $scope.doGreeting = function(greeting) {\n               $window.alert(greeting);\n             };\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"text\" ng-model=\"greeting\" />\n         <button ng-click=\"doGreeting(greeting)\">ALERT</button>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n      it('should display the greeting in the input box', function() {\n       element(by.model('greeting')).sendKeys('Hello, E2E Tests');\n       // If we click the button it will block the test runner\n       // element(':button').click();\n      });\n     </file>\n   </example>\n */\nfunction $WindowProvider() {\n  this.$get = valueFn(window);\n}\n\n/* global currencyFilter: true,\n dateFilter: true,\n filterFilter: true,\n jsonFilter: true,\n limitToFilter: true,\n lowercaseFilter: true,\n numberFilter: true,\n orderByFilter: true,\n uppercaseFilter: true,\n */\n\n/**\n * @ngdoc provider\n * @name $filterProvider\n * @description\n *\n * Filters are just functions which transform input to an output. However filters need to be\n * Dependency Injected. To achieve this a filter definition consists of a factory function which is\n * annotated with dependencies and is responsible for creating a filter function.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n * (`myapp_subsection_filterx`).\n * </div>\n *\n * ```js\n *   // Filter registration\n *   function MyModule($provide, $filterProvider) {\n *     // create a service to demonstrate injection (not always needed)\n *     $provide.value('greet', function(name){\n *       return 'Hello ' + name + '!';\n *     });\n *\n *     // register a filter factory which uses the\n *     // greet service to demonstrate DI.\n *     $filterProvider.register('greet', function(greet){\n *       // return the filter function which uses the greet service\n *       // to generate salutation\n *       return function(text) {\n *         // filters need to be forgiving so check input validity\n *         return text && greet(text) || text;\n *       };\n *     });\n *   }\n * ```\n *\n * The filter function is registered with the `$injector` under the filter name suffix with\n * `Filter`.\n *\n * ```js\n *   it('should be the same instance', inject(\n *     function($filterProvider) {\n *       $filterProvider.register('reverse', function(){\n *         return ...;\n *       });\n *     },\n *     function($filter, reverseFilter) {\n *       expect($filter('reverse')).toBe(reverseFilter);\n *     });\n * ```\n *\n *\n * For more information about how angular filters work, and how to create your own filters, see\n * {@link guide/filter Filters} in the Angular Developer Guide.\n */\n\n/**\n * @ngdoc service\n * @name $filter\n * @kind function\n * @description\n * Filters are used for formatting data displayed to the user.\n *\n * The general syntax in templates is as follows:\n *\n *         {{ expression [| filter_name[:parameter_value] ... ] }}\n *\n * @param {String} name Name of the filter function to retrieve\n * @return {Function} the filter function\n * @example\n   <example name=\"$filter\" module=\"filterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainCtrl\">\n        <h3>{{ originalText }}</h3>\n        <h3>{{ filteredText }}</h3>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n      angular.module('filterExample', [])\n      .controller('MainCtrl', function($scope, $filter) {\n        $scope.originalText = 'hello';\n        $scope.filteredText = $filter('uppercase')($scope.originalText);\n      });\n     </file>\n   </example>\n  */\n$FilterProvider.$inject = ['$provide'];\nfunction $FilterProvider($provide) {\n  var suffix = 'Filter';\n\n  /**\n   * @ngdoc method\n   * @name $filterProvider#register\n   * @param {string|Object} name Name of the filter function, or an object map of filters where\n   *    the keys are the filter names and the values are the filter factories.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n   *    Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n   *    your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n   *    (`myapp_subsection_filterx`).\n   *    </div>\n   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map\n   *    of the registered filter instances.\n   */\n  function register(name, factory) {\n    if (isObject(name)) {\n      var filters = {};\n      forEach(name, function(filter, key) {\n        filters[key] = register(key, filter);\n      });\n      return filters;\n    } else {\n      return $provide.factory(name + suffix, factory);\n    }\n  }\n  this.register = register;\n\n  this.$get = ['$injector', function($injector) {\n    return function(name) {\n      return $injector.get(name + suffix);\n    };\n  }];\n\n  ////////////////////////////////////////\n\n  /* global\n    currencyFilter: false,\n    dateFilter: false,\n    filterFilter: false,\n    jsonFilter: false,\n    limitToFilter: false,\n    lowercaseFilter: false,\n    numberFilter: false,\n    orderByFilter: false,\n    uppercaseFilter: false,\n  */\n\n  register('currency', currencyFilter);\n  register('date', dateFilter);\n  register('filter', filterFilter);\n  register('json', jsonFilter);\n  register('limitTo', limitToFilter);\n  register('lowercase', lowercaseFilter);\n  register('number', numberFilter);\n  register('orderBy', orderByFilter);\n  register('uppercase', uppercaseFilter);\n}\n\n/**\n * @ngdoc filter\n * @name filter\n * @kind function\n *\n * @description\n * Selects a subset of items from `array` and returns it as a new array.\n *\n * @param {Array} array The source array.\n * @param {string|Object|function()} expression The predicate to be used for selecting items from\n *   `array`.\n *\n *   Can be one of:\n *\n *   - `string`: The string is used for matching against the contents of the `array`. All strings or\n *     objects with string properties in `array` that match this string will be returned. This also\n *     applies to nested object properties.\n *     The predicate can be negated by prefixing the string with `!`.\n *\n *   - `Object`: A pattern object can be used to filter specific properties on objects contained\n *     by `array`. For example `{name:\"M\", phone:\"1\"}` predicate will return an array of items\n *     which have property `name` containing \"M\" and property `phone` containing \"1\". A special\n *     property name `$` can be used (as in `{$:\"text\"}`) to accept a match against any\n *     property of the object or its nested object properties. That's equivalent to the simple\n *     substring match with a `string` as described above. The predicate can be negated by prefixing\n *     the string with `!`.\n *     For example `{name: \"!M\"}` predicate will return an array of items which have property `name`\n *     not containing \"M\".\n *\n *     Note that a named property will match properties on the same level only, while the special\n *     `$` property will match properties on the same level or deeper. E.g. an array item like\n *     `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but\n *     **will** be matched by `{$: 'John'}`.\n *\n *   - `function(value, index)`: A predicate function can be used to write arbitrary filters. The\n *     function is called for each element of `array`. The final result is an array of those\n *     elements that the predicate returned true for.\n *\n * @param {function(actual, expected)|true|undefined} comparator Comparator which is used in\n *     determining if the expected value (from the filter expression) and actual value (from\n *     the object in the array) should be considered a match.\n *\n *   Can be one of:\n *\n *   - `function(actual, expected)`:\n *     The function will be given the object value and the predicate value to compare and\n *     should return true if both values should be considered equal.\n *\n *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`.\n *     This is essentially strict comparison of expected and actual.\n *\n *   - `false|undefined`: A short hand for a function which will look for a substring match in case\n *     insensitive way.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <div ng-init=\"friends = [{name:'John', phone:'555-1276'},\n                                {name:'Mary', phone:'800-BIG-MARY'},\n                                {name:'Mike', phone:'555-4321'},\n                                {name:'Adam', phone:'555-5678'},\n                                {name:'Julie', phone:'555-8765'},\n                                {name:'Juliette', phone:'555-5678'}]\"></div>\n\n       Search: <input ng-model=\"searchText\">\n       <table id=\"searchTextResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friend in friends | filter:searchText\">\n           <td>{{friend.name}}</td>\n           <td>{{friend.phone}}</td>\n         </tr>\n       </table>\n       <hr>\n       Any: <input ng-model=\"search.$\"> <br>\n       Name only <input ng-model=\"search.name\"><br>\n       Phone only <input ng-model=\"search.phone\"><br>\n       Equality <input type=\"checkbox\" ng-model=\"strict\"><br>\n       <table id=\"searchObjResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friendObj in friends | filter:search:strict\">\n           <td>{{friendObj.name}}</td>\n           <td>{{friendObj.phone}}</td>\n         </tr>\n       </table>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var expectFriendNames = function(expectedNames, key) {\n         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {\n           arr.forEach(function(wd, i) {\n             expect(wd.getText()).toMatch(expectedNames[i]);\n           });\n         });\n       };\n\n       it('should search across all fields when filtering with a string', function() {\n         var searchText = element(by.model('searchText'));\n         searchText.clear();\n         searchText.sendKeys('m');\n         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');\n\n         searchText.clear();\n         searchText.sendKeys('76');\n         expectFriendNames(['John', 'Julie'], 'friend');\n       });\n\n       it('should search in specific fields when filtering with a predicate object', function() {\n         var searchAny = element(by.model('search.$'));\n         searchAny.clear();\n         searchAny.sendKeys('i');\n         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');\n       });\n       it('should use a equal comparison when comparator is true', function() {\n         var searchName = element(by.model('search.name'));\n         var strict = element(by.model('strict'));\n         searchName.clear();\n         searchName.sendKeys('Julie');\n         strict.click();\n         expectFriendNames(['Julie'], 'friendObj');\n       });\n     </file>\n   </example>\n */\nfunction filterFilter() {\n  return function(array, expression, comparator) {\n    if (!isArray(array)) return array;\n\n    var expressionType = (expression !== null) ? typeof expression : 'null';\n    var predicateFn;\n    var matchAgainstAnyProp;\n\n    switch (expressionType) {\n      case 'function':\n        predicateFn = expression;\n        break;\n      case 'boolean':\n      case 'null':\n      case 'number':\n      case 'string':\n        matchAgainstAnyProp = true;\n        //jshint -W086\n      case 'object':\n        //jshint +W086\n        predicateFn = createPredicateFn(expression, comparator, matchAgainstAnyProp);\n        break;\n      default:\n        return array;\n    }\n\n    return array.filter(predicateFn);\n  };\n}\n\n// Helper functions for `filterFilter`\nfunction createPredicateFn(expression, comparator, matchAgainstAnyProp) {\n  var shouldMatchPrimitives = isObject(expression) && ('$' in expression);\n  var predicateFn;\n\n  if (comparator === true) {\n    comparator = equals;\n  } else if (!isFunction(comparator)) {\n    comparator = function(actual, expected) {\n      if (isUndefined(actual)) {\n        // No substring matching against `undefined`\n        return false;\n      }\n      if ((actual === null) || (expected === null)) {\n        // No substring matching against `null`; only match against `null`\n        return actual === expected;\n      }\n      if (isObject(actual) || isObject(expected)) {\n        // Prevent an object to be considered equal to a string like `'[object'`\n        return false;\n      }\n\n      actual = lowercase('' + actual);\n      expected = lowercase('' + expected);\n      return actual.indexOf(expected) !== -1;\n    };\n  }\n\n  predicateFn = function(item) {\n    if (shouldMatchPrimitives && !isObject(item)) {\n      return deepCompare(item, expression.$, comparator, false);\n    }\n    return deepCompare(item, expression, comparator, matchAgainstAnyProp);\n  };\n\n  return predicateFn;\n}\n\nfunction deepCompare(actual, expected, comparator, matchAgainstAnyProp, dontMatchWholeObject) {\n  var actualType = (actual !== null) ? typeof actual : 'null';\n  var expectedType = (expected !== null) ? typeof expected : 'null';\n\n  if ((expectedType === 'string') && (expected.charAt(0) === '!')) {\n    return !deepCompare(actual, expected.substring(1), comparator, matchAgainstAnyProp);\n  } else if (isArray(actual)) {\n    // In case `actual` is an array, consider it a match\n    // if ANY of it's items matches `expected`\n    return actual.some(function(item) {\n      return deepCompare(item, expected, comparator, matchAgainstAnyProp);\n    });\n  }\n\n  switch (actualType) {\n    case 'object':\n      var key;\n      if (matchAgainstAnyProp) {\n        for (key in actual) {\n          if ((key.charAt(0) !== '$') && deepCompare(actual[key], expected, comparator, true)) {\n            return true;\n          }\n        }\n        return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, false);\n      } else if (expectedType === 'object') {\n        for (key in expected) {\n          var expectedVal = expected[key];\n          if (isFunction(expectedVal) || isUndefined(expectedVal)) {\n            continue;\n          }\n\n          var matchAnyProperty = key === '$';\n          var actualVal = matchAnyProperty ? actual : actual[key];\n          if (!deepCompare(actualVal, expectedVal, comparator, matchAnyProperty, matchAnyProperty)) {\n            return false;\n          }\n        }\n        return true;\n      } else {\n        return comparator(actual, expected);\n      }\n      break;\n    case 'function':\n      return false;\n    default:\n      return comparator(actual, expected);\n  }\n}\n\n/**\n * @ngdoc filter\n * @name currency\n * @kind function\n *\n * @description\n * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default\n * symbol for current locale is used.\n *\n * @param {number} amount Input to filter.\n * @param {string=} symbol Currency symbol or identifier to be displayed.\n * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale\n * @returns {string} Formatted number.\n *\n *\n * @example\n   <example module=\"currencyExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('currencyExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.amount = 1234.56;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"number\" ng-model=\"amount\"> <br>\n         default currency symbol ($): <span id=\"currency-default\">{{amount | currency}}</span><br>\n         custom currency identifier (USD$): <span id=\"currency-custom\">{{amount | currency:\"USD$\"}}</span>\n         no fractions (0): <span id=\"currency-no-fractions\">{{amount | currency:\"USD$\":0}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should init with 1234.56', function() {\n         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');\n         expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235');\n       });\n       it('should update', function() {\n         if (browser.params.browser == 'safari') {\n           // Safari does not understand the minus key. See\n           // https://github.com/angular/protractor/issues/481\n           return;\n         }\n         element(by.model('amount')).clear();\n         element(by.model('amount')).sendKeys('-1234');\n         expect(element(by.id('currency-default')).getText()).toBe('($1,234.00)');\n         expect(element(by.id('currency-custom')).getText()).toBe('(USD$1,234.00)');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('(USD$1,234)');\n       });\n     </file>\n   </example>\n */\ncurrencyFilter.$inject = ['$locale'];\nfunction currencyFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(amount, currencySymbol, fractionSize) {\n    if (isUndefined(currencySymbol)) {\n      currencySymbol = formats.CURRENCY_SYM;\n    }\n\n    if (isUndefined(fractionSize)) {\n      fractionSize = formats.PATTERNS[1].maxFrac;\n    }\n\n    // if null or undefined pass it through\n    return (amount == null)\n        ? amount\n        : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize).\n            replace(/\\u00A4/g, currencySymbol);\n  };\n}\n\n/**\n * @ngdoc filter\n * @name number\n * @kind function\n *\n * @description\n * Formats a number as text.\n *\n * If the input is null or undefined, it will just be returned.\n * If the input is infinite (Infinity/-Infinity) the Infinity symbol '∞' is returned.\n * If the input is not a number an empty string is returned.\n *\n * @param {number|string} number Number to format.\n * @param {(number|string)=} fractionSize Number of decimal places to round the number to.\n * If this is not provided then the fraction size is computed from the current locale's number\n * formatting pattern. In the case of the default locale, it will be 3.\n * @returns {string} Number rounded to decimalPlaces and places a “,” after each third digit.\n *\n * @example\n   <example module=\"numberFilterExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('numberFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.val = 1234.56789;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         Enter number: <input ng-model='val'><br>\n         Default formatting: <span id='number-default'>{{val | number}}</span><br>\n         No fractions: <span>{{val | number:0}}</span><br>\n         Negative number: <span>{{-val | number:4}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format numbers', function() {\n         expect(element(by.id('number-default')).getText()).toBe('1,234.568');\n         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');\n       });\n\n       it('should update', function() {\n         element(by.model('val')).clear();\n         element(by.model('val')).sendKeys('3374.333');\n         expect(element(by.id('number-default')).getText()).toBe('3,374.333');\n         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');\n      });\n     </file>\n   </example>\n */\n\n\nnumberFilter.$inject = ['$locale'];\nfunction numberFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(number, fractionSize) {\n\n    // if null or undefined pass it through\n    return (number == null)\n        ? number\n        : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,\n                       fractionSize);\n  };\n}\n\nvar DECIMAL_SEP = '.';\nfunction formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {\n  if (!isFinite(number) || isObject(number)) return '';\n\n  var isNegative = number < 0;\n  number = Math.abs(number);\n  var numStr = number + '',\n      formatedText = '',\n      parts = [];\n\n  var hasExponent = false;\n  if (numStr.indexOf('e') !== -1) {\n    var match = numStr.match(/([\\d\\.]+)e(-?)(\\d+)/);\n    if (match && match[2] == '-' && match[3] > fractionSize + 1) {\n      number = 0;\n    } else {\n      formatedText = numStr;\n      hasExponent = true;\n    }\n  }\n\n  if (!hasExponent) {\n    var fractionLen = (numStr.split(DECIMAL_SEP)[1] || '').length;\n\n    // determine fractionSize if it is not specified\n    if (isUndefined(fractionSize)) {\n      fractionSize = Math.min(Math.max(pattern.minFrac, fractionLen), pattern.maxFrac);\n    }\n\n    // safely round numbers in JS without hitting imprecisions of floating-point arithmetics\n    // inspired by:\n    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round\n    number = +(Math.round(+(number.toString() + 'e' + fractionSize)).toString() + 'e' + -fractionSize);\n\n    var fraction = ('' + number).split(DECIMAL_SEP);\n    var whole = fraction[0];\n    fraction = fraction[1] || '';\n\n    var i, pos = 0,\n        lgroup = pattern.lgSize,\n        group = pattern.gSize;\n\n    if (whole.length >= (lgroup + group)) {\n      pos = whole.length - lgroup;\n      for (i = 0; i < pos; i++) {\n        if ((pos - i) % group === 0 && i !== 0) {\n          formatedText += groupSep;\n        }\n        formatedText += whole.charAt(i);\n      }\n    }\n\n    for (i = pos; i < whole.length; i++) {\n      if ((whole.length - i) % lgroup === 0 && i !== 0) {\n        formatedText += groupSep;\n      }\n      formatedText += whole.charAt(i);\n    }\n\n    // format fraction part.\n    while (fraction.length < fractionSize) {\n      fraction += '0';\n    }\n\n    if (fractionSize && fractionSize !== \"0\") formatedText += decimalSep + fraction.substr(0, fractionSize);\n  } else {\n    if (fractionSize > 0 && number < 1) {\n      formatedText = number.toFixed(fractionSize);\n      number = parseFloat(formatedText);\n    }\n  }\n\n  if (number === 0) {\n    isNegative = false;\n  }\n\n  parts.push(isNegative ? pattern.negPre : pattern.posPre,\n             formatedText,\n             isNegative ? pattern.negSuf : pattern.posSuf);\n  return parts.join('');\n}\n\nfunction padNumber(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while (num.length < digits) num = '0' + num;\n  if (trim)\n    num = num.substr(num.length - digits);\n  return neg + num;\n}\n\n\nfunction dateGetter(name, size, offset, trim) {\n  offset = offset || 0;\n  return function(date) {\n    var value = date['get' + name]();\n    if (offset > 0 || value > -offset)\n      value += offset;\n    if (value === 0 && offset == -12) value = 12;\n    return padNumber(value, size, trim);\n  };\n}\n\nfunction dateStrGetter(name, shortForm) {\n  return function(date, formats) {\n    var value = date['get' + name]();\n    var get = uppercase(shortForm ? ('SHORT' + name) : name);\n\n    return formats[get][value];\n  };\n}\n\nfunction timeZoneGetter(date) {\n  var zone = -1 * date.getTimezoneOffset();\n  var paddedZone = (zone >= 0) ? \"+\" : \"\";\n\n  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +\n                padNumber(Math.abs(zone % 60), 2);\n\n  return paddedZone;\n}\n\nfunction getFirstThursdayOfYear(year) {\n    // 0 = index of January\n    var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay();\n    // 4 = index of Thursday (+1 to account for 1st = 5)\n    // 11 = index of *next* Thursday (+1 account for 1st = 12)\n    return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst);\n}\n\nfunction getThursdayThisWeek(datetime) {\n    return new Date(datetime.getFullYear(), datetime.getMonth(),\n      // 4 = index of Thursday\n      datetime.getDate() + (4 - datetime.getDay()));\n}\n\nfunction weekGetter(size) {\n   return function(date) {\n      var firstThurs = getFirstThursdayOfYear(date.getFullYear()),\n         thisThurs = getThursdayThisWeek(date);\n\n      var diff = +thisThurs - +firstThurs,\n         result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n\n      return padNumber(result, size);\n   };\n}\n\nfunction ampmGetter(date, formats) {\n  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];\n}\n\nfunction eraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1];\n}\n\nfunction longEraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1];\n}\n\nvar DATE_FORMATS = {\n  yyyy: dateGetter('FullYear', 4),\n    yy: dateGetter('FullYear', 2, 0, true),\n     y: dateGetter('FullYear', 1),\n  MMMM: dateStrGetter('Month'),\n   MMM: dateStrGetter('Month', true),\n    MM: dateGetter('Month', 2, 1),\n     M: dateGetter('Month', 1, 1),\n    dd: dateGetter('Date', 2),\n     d: dateGetter('Date', 1),\n    HH: dateGetter('Hours', 2),\n     H: dateGetter('Hours', 1),\n    hh: dateGetter('Hours', 2, -12),\n     h: dateGetter('Hours', 1, -12),\n    mm: dateGetter('Minutes', 2),\n     m: dateGetter('Minutes', 1),\n    ss: dateGetter('Seconds', 2),\n     s: dateGetter('Seconds', 1),\n     // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions\n   sss: dateGetter('Milliseconds', 3),\n  EEEE: dateStrGetter('Day'),\n   EEE: dateStrGetter('Day', true),\n     a: ampmGetter,\n     Z: timeZoneGetter,\n    ww: weekGetter(2),\n     w: weekGetter(1),\n     G: eraGetter,\n     GG: eraGetter,\n     GGG: eraGetter,\n     GGGG: longEraGetter\n};\n\nvar DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z|G+|w+))(.*)/,\n    NUMBER_STRING = /^\\-?\\d+$/;\n\n/**\n * @ngdoc filter\n * @name date\n * @kind function\n *\n * @description\n *   Formats `date` to a string based on the requested `format`.\n *\n *   `format` string can be composed of the following elements:\n *\n *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)\n *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)\n *   * `'MMMM'`: Month in year (January-December)\n *   * `'MMM'`: Month in year (Jan-Dec)\n *   * `'MM'`: Month in year, padded (01-12)\n *   * `'M'`: Month in year (1-12)\n *   * `'dd'`: Day in month, padded (01-31)\n *   * `'d'`: Day in month (1-31)\n *   * `'EEEE'`: Day in Week,(Sunday-Saturday)\n *   * `'EEE'`: Day in Week, (Sun-Sat)\n *   * `'HH'`: Hour in day, padded (00-23)\n *   * `'H'`: Hour in day (0-23)\n *   * `'hh'`: Hour in AM/PM, padded (01-12)\n *   * `'h'`: Hour in AM/PM, (1-12)\n *   * `'mm'`: Minute in hour, padded (00-59)\n *   * `'m'`: Minute in hour (0-59)\n *   * `'ss'`: Second in minute, padded (00-59)\n *   * `'s'`: Second in minute (0-59)\n *   * `'sss'`: Millisecond in second, padded (000-999)\n *   * `'a'`: AM/PM marker\n *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)\n *   * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year\n *   * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year\n *   * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD')\n *   * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini')\n *\n *   `format` string can also be one of the following predefined\n *   {@link guide/i18n localizable formats}:\n *\n *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale\n *     (e.g. Sep 3, 2010 12:05:08 PM)\n *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)\n *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale\n *     (e.g. Friday, September 3, 2010)\n *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)\n *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)\n *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)\n *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)\n *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)\n *\n *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.\n *   `\"h 'in the morning'\"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence\n *   (e.g. `\"h 'o''clock'\"`).\n *\n * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or\n *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its\n *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is\n *    specified in the string input, the time is considered to be in the local timezone.\n * @param {string=} format Formatting rules (see Description). If not specified,\n *    `mediumDate` is used.\n * @param {string=} timezone Timezone to be used for formatting. Right now, only `'UTC'` is supported.\n *    If not specified, the timezone of the browser will be used.\n * @returns {string} Formatted string or the input if input is not recognized as date/millis.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:\n           <span>{{1288323623006 | date:'medium'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:\n          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:\n          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:\"MM/dd/yyyy 'at' h:mma\"}}</span>:\n          <span>{{'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"}}</span><br>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format date', function() {\n         expect(element(by.binding(\"1288323623006 | date:'medium'\")).getText()).\n            toMatch(/Oct 2\\d, 2010 \\d{1,2}:\\d{2}:\\d{2} (AM|PM)/);\n         expect(element(by.binding(\"1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'\")).getText()).\n            toMatch(/2010\\-10\\-2\\d \\d{2}:\\d{2}:\\d{2} (\\-|\\+)?\\d{4}/);\n         expect(element(by.binding(\"'1288323623006' | date:'MM/dd/yyyy @ h:mma'\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 @ \\d{1,2}:\\d{2}(AM|PM)/);\n         expect(element(by.binding(\"'1288323623006' | date:\\\"MM/dd/yyyy 'at' h:mma\\\"\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 at \\d{1,2}:\\d{2}(AM|PM)/);\n       });\n     </file>\n   </example>\n */\ndateFilter.$inject = ['$locale'];\nfunction dateFilter($locale) {\n\n\n  var R_ISO8601_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n                     // 1        2       3         4          5          6          7          8  9     10      11\n  function jsonStringToDate(string) {\n    var match;\n    if (match = string.match(R_ISO8601_STR)) {\n      var date = new Date(0),\n          tzHour = 0,\n          tzMin  = 0,\n          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,\n          timeSetter = match[8] ? date.setUTCHours : date.setHours;\n\n      if (match[9]) {\n        tzHour = int(match[9] + match[10]);\n        tzMin = int(match[9] + match[11]);\n      }\n      dateSetter.call(date, int(match[1]), int(match[2]) - 1, int(match[3]));\n      var h = int(match[4] || 0) - tzHour;\n      var m = int(match[5] || 0) - tzMin;\n      var s = int(match[6] || 0);\n      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n      timeSetter.call(date, h, m, s, ms);\n      return date;\n    }\n    return string;\n  }\n\n\n  return function(date, format, timezone) {\n    var text = '',\n        parts = [],\n        fn, match;\n\n    format = format || 'mediumDate';\n    format = $locale.DATETIME_FORMATS[format] || format;\n    if (isString(date)) {\n      date = NUMBER_STRING.test(date) ? int(date) : jsonStringToDate(date);\n    }\n\n    if (isNumber(date)) {\n      date = new Date(date);\n    }\n\n    if (!isDate(date)) {\n      return date;\n    }\n\n    while (format) {\n      match = DATE_FORMATS_SPLIT.exec(format);\n      if (match) {\n        parts = concat(parts, match, 1);\n        format = parts.pop();\n      } else {\n        parts.push(format);\n        format = null;\n      }\n    }\n\n    if (timezone && timezone === 'UTC') {\n      date = new Date(date.getTime());\n      date.setMinutes(date.getMinutes() + date.getTimezoneOffset());\n    }\n    forEach(parts, function(value) {\n      fn = DATE_FORMATS[value];\n      text += fn ? fn(date, $locale.DATETIME_FORMATS)\n                 : value.replace(/(^'|'$)/g, '').replace(/''/g, \"'\");\n    });\n\n    return text;\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name json\n * @kind function\n *\n * @description\n *   Allows you to convert a JavaScript object into JSON string.\n *\n *   This filter is mostly useful for debugging. When using the double curly {{value}} notation\n *   the binding is automatically converted to JSON.\n *\n * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.\n * @param {number=} spacing The number of spaces to use per indentation, defaults to 2.\n * @returns {string} JSON string.\n *\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <pre id=\"default-spacing\">{{ {'name':'value'} | json }}</pre>\n       <pre id=\"custom-spacing\">{{ {'name':'value'} | json:4 }}</pre>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should jsonify filtered objects', function() {\n         expect(element(by.id('default-spacing')).getText()).toMatch(/\\{\\n  \"name\": ?\"value\"\\n}/);\n         expect(element(by.id('custom-spacing')).getText()).toMatch(/\\{\\n    \"name\": ?\"value\"\\n}/);\n       });\n     </file>\n   </example>\n *\n */\nfunction jsonFilter() {\n  return function(object, spacing) {\n    if (isUndefined(spacing)) {\n        spacing = 2;\n    }\n    return toJson(object, spacing);\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name lowercase\n * @kind function\n * @description\n * Converts string to lowercase.\n * @see angular.lowercase\n */\nvar lowercaseFilter = valueFn(lowercase);\n\n\n/**\n * @ngdoc filter\n * @name uppercase\n * @kind function\n * @description\n * Converts string to uppercase.\n * @see angular.uppercase\n */\nvar uppercaseFilter = valueFn(uppercase);\n\n/**\n * @ngdoc filter\n * @name limitTo\n * @kind function\n *\n * @description\n * Creates a new array or string containing only a specified number of elements. The elements\n * are taken from either the beginning or the end of the source array, string or number, as specified by\n * the value and sign (positive or negative) of `limit`. If a number is used as input, it is\n * converted to a string.\n *\n * @param {Array|string|number} input Source array, string or number to be limited.\n * @param {string|number} limit The length of the returned array or string. If the `limit` number\n *     is positive, `limit` number of items from the beginning of the source array/string are copied.\n *     If the number is negative, `limit` number  of items from the end of the source array/string\n *     are copied. The `limit` will be trimmed if it exceeds `array.length`\n * @returns {Array|string} A new sub-array or substring of length `limit` or less if input array\n *     had less than `limit` elements.\n *\n * @example\n   <example module=\"limitToExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('limitToExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.numbers = [1,2,3,4,5,6,7,8,9];\n             $scope.letters = \"abcdefghi\";\n             $scope.longNumber = 2345432342;\n             $scope.numLimit = 3;\n             $scope.letterLimit = 3;\n             $scope.longNumberLimit = 3;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         Limit {{numbers}} to: <input type=\"number\" step=\"1\" ng-model=\"numLimit\">\n         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>\n         Limit {{letters}} to: <input type=\"number\" step=\"1\" ng-model=\"letterLimit\">\n         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>\n         Limit {{longNumber}} to: <input type=\"number\" step=\"1\" ng-model=\"longNumberLimit\">\n         <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var numLimitInput = element(by.model('numLimit'));\n       var letterLimitInput = element(by.model('letterLimit'));\n       var longNumberLimitInput = element(by.model('longNumberLimit'));\n       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));\n       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));\n       var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));\n\n       it('should limit the number array to first three items', function() {\n         expect(numLimitInput.getAttribute('value')).toBe('3');\n         expect(letterLimitInput.getAttribute('value')).toBe('3');\n         expect(longNumberLimitInput.getAttribute('value')).toBe('3');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abc');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 234');\n       });\n\n       // There is a bug in safari and protractor that doesn't like the minus key\n       // it('should update the output when -3 is entered', function() {\n       //   numLimitInput.clear();\n       //   numLimitInput.sendKeys('-3');\n       //   letterLimitInput.clear();\n       //   letterLimitInput.sendKeys('-3');\n       //   longNumberLimitInput.clear();\n       //   longNumberLimitInput.sendKeys('-3');\n       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');\n       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');\n       //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');\n       // });\n\n       it('should not exceed the maximum size of input array', function() {\n         numLimitInput.clear();\n         numLimitInput.sendKeys('100');\n         letterLimitInput.clear();\n         letterLimitInput.sendKeys('100');\n         longNumberLimitInput.clear();\n         longNumberLimitInput.sendKeys('100');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');\n       });\n     </file>\n   </example>\n*/\nfunction limitToFilter() {\n  return function(input, limit) {\n    if (isNumber(input)) input = input.toString();\n    if (!isArray(input) && !isString(input)) return input;\n\n    if (Math.abs(Number(limit)) === Infinity) {\n      limit = Number(limit);\n    } else {\n      limit = int(limit);\n    }\n\n    //NaN check on limit\n    if (limit) {\n      return limit > 0 ? input.slice(0, limit) : input.slice(limit);\n    } else {\n      return isString(input) ? \"\" : [];\n    }\n  };\n}\n\n/**\n * @ngdoc filter\n * @name orderBy\n * @kind function\n *\n * @description\n * Orders a specified `array` by the `expression` predicate. It is ordered alphabetically\n * for strings and numerically for numbers. Note: if you notice numbers are not being sorted\n * correctly, make sure they are actually being saved as numbers and not strings.\n *\n * @param {Array} array The array to sort.\n * @param {function(*)|string|Array.<(function(*)|string)>=} expression A predicate to be\n *    used by the comparator to determine the order of elements.\n *\n *    Can be one of:\n *\n *    - `function`: Getter function. The result of this function will be sorted using the\n *      `<`, `===`, `>` operator.\n *    - `string`: An Angular expression. The result of this expression is used to compare elements\n *      (for example `name` to sort by a property called `name` or `name.substr(0, 3)` to sort by\n *      3 first characters of a property called `name`). The result of a constant expression\n *      is interpreted as a property name to be used in comparisons (for example `\"special name\"`\n *      to sort object by the value of their `special name` property). An expression can be\n *      optionally prefixed with `+` or `-` to control ascending or descending sort order\n *      (for example, `+name` or `-name`). If no property is provided, (e.g. `'+'`) then the array\n *      element itself is used to compare where sorting.\n *    - `Array`: An array of function or string predicates. The first predicate in the array\n *      is used for sorting, but when two items are equivalent, the next predicate is used.\n *\n *    If the predicate is missing or empty then it defaults to `'+'`.\n *\n * @param {boolean=} reverse Reverse the order of the array.\n * @returns {Array} Sorted copy of the source array.\n *\n *\n * @example\n * The example below demonstrates a simple ngRepeat, where the data is sorted\n * by age in descending order (predicate is set to `'-age'`).\n * `reverse` is not set, which means it defaults to `false`.\n   <example module=\"orderByExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('orderByExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.friends =\n                 [{name:'John', phone:'555-1212', age:10},\n                  {name:'Mary', phone:'555-9876', age:19},\n                  {name:'Mike', phone:'555-4321', age:21},\n                  {name:'Adam', phone:'555-5678', age:35},\n                  {name:'Julie', phone:'555-8765', age:29}];\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <table class=\"friend\">\n           <tr>\n             <th>Name</th>\n             <th>Phone Number</th>\n             <th>Age</th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:'-age'\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n   </example>\n *\n * The predicate and reverse parameters can be controlled dynamically through scope properties,\n * as shown in the next example.\n * @example\n   <example module=\"orderByExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('orderByExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.friends =\n                 [{name:'John', phone:'555-1212', age:10},\n                  {name:'Mary', phone:'555-9876', age:19},\n                  {name:'Mike', phone:'555-4321', age:21},\n                  {name:'Adam', phone:'555-5678', age:35},\n                  {name:'Julie', phone:'555-8765', age:29}];\n             $scope.predicate = '-age';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <pre>Sorting predicate = {{predicate}}; reverse = {{reverse}}</pre>\n         <hr/>\n         [ <a href=\"\" ng-click=\"predicate=''\">unsorted</a> ]\n         <table class=\"friend\">\n           <tr>\n             <th><a href=\"\" ng-click=\"predicate = 'name'; reverse=false\">Name</a>\n                 (<a href=\"\" ng-click=\"predicate = '-name'; reverse=false\">^</a>)</th>\n             <th><a href=\"\" ng-click=\"predicate = 'phone'; reverse=!reverse\">Phone Number</a></th>\n             <th><a href=\"\" ng-click=\"predicate = 'age'; reverse=!reverse\">Age</a></th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:predicate:reverse\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n   </example>\n *\n * It's also possible to call the orderBy filter manually, by injecting `$filter`, retrieving the\n * filter routine with `$filter('orderBy')`, and calling the returned filter routine with the\n * desired parameters.\n *\n * Example:\n *\n * @example\n  <example module=\"orderByExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <table class=\"friend\">\n          <tr>\n            <th><a href=\"\" ng-click=\"reverse=false;order('name', false)\">Name</a>\n              (<a href=\"\" ng-click=\"order('-name',false)\">^</a>)</th>\n            <th><a href=\"\" ng-click=\"reverse=!reverse;order('phone', reverse)\">Phone Number</a></th>\n            <th><a href=\"\" ng-click=\"reverse=!reverse;order('age',reverse)\">Age</a></th>\n          </tr>\n          <tr ng-repeat=\"friend in friends\">\n            <td>{{friend.name}}</td>\n            <td>{{friend.phone}}</td>\n            <td>{{friend.age}}</td>\n          </tr>\n        </table>\n      </div>\n    </file>\n\n    <file name=\"script.js\">\n      angular.module('orderByExample', [])\n        .controller('ExampleController', ['$scope', '$filter', function($scope, $filter) {\n          var orderBy = $filter('orderBy');\n          $scope.friends = [\n            { name: 'John',    phone: '555-1212',    age: 10 },\n            { name: 'Mary',    phone: '555-9876',    age: 19 },\n            { name: 'Mike',    phone: '555-4321',    age: 21 },\n            { name: 'Adam',    phone: '555-5678',    age: 35 },\n            { name: 'Julie',   phone: '555-8765',    age: 29 }\n          ];\n          $scope.order = function(predicate, reverse) {\n            $scope.friends = orderBy($scope.friends, predicate, reverse);\n          };\n          $scope.order('-age',false);\n        }]);\n    </file>\n</example>\n */\norderByFilter.$inject = ['$parse'];\nfunction orderByFilter($parse) {\n  return function(array, sortPredicate, reverseOrder) {\n    if (!(isArrayLike(array))) return array;\n    sortPredicate = isArray(sortPredicate) ? sortPredicate : [sortPredicate];\n    if (sortPredicate.length === 0) { sortPredicate = ['+']; }\n    sortPredicate = sortPredicate.map(function(predicate) {\n      var descending = false, get = predicate || identity;\n      if (isString(predicate)) {\n        if ((predicate.charAt(0) == '+' || predicate.charAt(0) == '-')) {\n          descending = predicate.charAt(0) == '-';\n          predicate = predicate.substring(1);\n        }\n        if (predicate === '') {\n          // Effectively no predicate was passed so we compare identity\n          return reverseComparator(compare, descending);\n        }\n        get = $parse(predicate);\n        if (get.constant) {\n          var key = get();\n          return reverseComparator(function(a, b) {\n            return compare(a[key], b[key]);\n          }, descending);\n        }\n      }\n      return reverseComparator(function(a, b) {\n        return compare(get(a),get(b));\n      }, descending);\n    });\n    return slice.call(array).sort(reverseComparator(comparator, reverseOrder));\n\n    function comparator(o1, o2) {\n      for (var i = 0; i < sortPredicate.length; i++) {\n        var comp = sortPredicate[i](o1, o2);\n        if (comp !== 0) return comp;\n      }\n      return 0;\n    }\n    function reverseComparator(comp, descending) {\n      return descending\n          ? function(a, b) {return comp(b,a);}\n          : comp;\n    }\n\n    function isPrimitive(value) {\n      switch (typeof value) {\n        case 'number': /* falls through */\n        case 'boolean': /* falls through */\n        case 'string':\n          return true;\n        default:\n          return false;\n      }\n    }\n\n    function objectToString(value) {\n      if (value === null) return 'null';\n      if (typeof value.valueOf === 'function') {\n        value = value.valueOf();\n        if (isPrimitive(value)) return value;\n      }\n      if (typeof value.toString === 'function') {\n        value = value.toString();\n        if (isPrimitive(value)) return value;\n      }\n      return '';\n    }\n\n    function compare(v1, v2) {\n      var t1 = typeof v1;\n      var t2 = typeof v2;\n      if (t1 === t2 && t1 === \"object\") {\n        v1 = objectToString(v1);\n        v2 = objectToString(v2);\n      }\n      if (t1 === t2) {\n        if (t1 === \"string\") {\n           v1 = v1.toLowerCase();\n           v2 = v2.toLowerCase();\n        }\n        if (v1 === v2) return 0;\n        return v1 < v2 ? -1 : 1;\n      } else {\n        return t1 < t2 ? -1 : 1;\n      }\n    }\n  };\n}\n\nfunction ngDirective(directive) {\n  if (isFunction(directive)) {\n    directive = {\n      link: directive\n    };\n  }\n  directive.restrict = directive.restrict || 'AC';\n  return valueFn(directive);\n}\n\n/**\n * @ngdoc directive\n * @name a\n * @restrict E\n *\n * @description\n * Modifies the default behavior of the html A tag so that the default action is prevented when\n * the href attribute is empty.\n *\n * This change permits the easy creation of action links with the `ngClick` directive\n * without changing the location or causing page reloads, e.g.:\n * `<a href=\"\" ng-click=\"list.addItem()\">Add Item</a>`\n */\nvar htmlAnchorDirective = valueFn({\n  restrict: 'E',\n  compile: function(element, attr) {\n    if (!attr.href && !attr.xlinkHref && !attr.name) {\n      return function(scope, element) {\n        // If the linked element is not an anchor tag anymore, do nothing\n        if (element[0].nodeName.toLowerCase() !== 'a') return;\n\n        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?\n                   'xlink:href' : 'href';\n        element.on('click', function(event) {\n          // if we have no href url, then don't navigate anywhere.\n          if (!element.attr(href)) {\n            event.preventDefault();\n          }\n        });\n      };\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngHref\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in an href attribute will\n * make the link go to the wrong URL if the user clicks it before\n * Angular has a chance to replace the `{{hash}}` markup with its\n * value. Until Angular replaces the markup the link will be broken\n * and will most likely return a 404 error. The `ngHref` directive\n * solves this problem.\n *\n * The wrong way to write it:\n * ```html\n * <a href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <a ng-href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * @element A\n * @param {template} ngHref any string which can contain `{{}}` markup.\n *\n * @example\n * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes\n * in links and their different behaviors:\n    <example>\n      <file name=\"index.html\">\n        <input ng-model=\"value\" /><br />\n        <a id=\"link-1\" href ng-click=\"value = 1\">link 1</a> (link, don't reload)<br />\n        <a id=\"link-2\" href=\"\" ng-click=\"value = 2\">link 2</a> (link, don't reload)<br />\n        <a id=\"link-3\" ng-href=\"/{{'123'}}\">link 3</a> (link, reload!)<br />\n        <a id=\"link-4\" href=\"\" name=\"xx\" ng-click=\"value = 4\">anchor</a> (link, don't reload)<br />\n        <a id=\"link-5\" name=\"xxx\" ng-click=\"value = 5\">anchor</a> (no link)<br />\n        <a id=\"link-6\" ng-href=\"{{value}}\">link</a> (link, change location)\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should execute ng-click but not reload when href without value', function() {\n          element(by.id('link-1')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('1');\n          expect(element(by.id('link-1')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when href empty string', function() {\n          element(by.id('link-2')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('2');\n          expect(element(by.id('link-2')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click and change url when ng-href specified', function() {\n          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\\/123$/);\n\n          element(by.id('link-3')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/123$/);\n            });\n          }, 5000, 'page should navigate to /123');\n        });\n\n        xit('should execute ng-click but not reload when href empty string and name specified', function() {\n          element(by.id('link-4')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('4');\n          expect(element(by.id('link-4')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when no href but name specified', function() {\n          element(by.id('link-5')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('5');\n          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);\n        });\n\n        it('should only change url when only ng-href', function() {\n          element(by.model('value')).clear();\n          element(by.model('value')).sendKeys('6');\n          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\\/6$/);\n\n          element(by.id('link-6')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/6$/);\n            });\n          }, 5000, 'page should navigate to /6');\n        });\n      </file>\n    </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngSrc\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `src` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrc` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img src=\"http://www.gravatar.com/avatar/{{hash}}\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-src=\"http://www.gravatar.com/avatar/{{hash}}\"/>\n * ```\n *\n * @element IMG\n * @param {template} ngSrc any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngSrcset\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrcset` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\"/>\n * ```\n *\n * @element IMG\n * @param {template} ngSrcset any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngDisabled\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * This directive sets the `disabled` attribute on the element if the\n * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `disabled`\n * attribute.  The following example would make the button enabled on Chrome/Firefox\n * but not on older IEs:\n *\n * ```html\n * <!-- See below for an example of ng-disabled being used correctly -->\n * <div ng-init=\"isDisabled = false\">\n *  <button disabled=\"{{isDisabled}}\">Disabled</button>\n * </div>\n * ```\n *\n * This is because the HTML specification does not require browsers to preserve the values of\n * boolean attributes such as `disabled` (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        Click me to toggle: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n        <button ng-model=\"button\" ng-disabled=\"checked\">Button</button>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle button', function() {\n          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,\n *     then the `disabled` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngChecked\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as checked. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngChecked` directive solves this problem for the `checked` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n * @example\n    <example>\n      <file name=\"index.html\">\n        Check me to check both: <input type=\"checkbox\" ng-model=\"master\"><br/>\n        <input id=\"checkSlave\" type=\"checkbox\" ng-checked=\"master\">\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should check both checkBoxes', function() {\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy();\n          element(by.model('master')).click();\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,\n *     then special attribute \"checked\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngReadonly\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as readonly. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngReadonly` directive solves this problem for the `readonly` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n * @example\n    <example>\n      <file name=\"index.html\">\n        Check me to make text readonly: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n        <input type=\"text\" ng-readonly=\"checked\" value=\"I'm Angular\"/>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle readonly attr', function() {\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,\n *     then special attribute \"readonly\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSelected\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as selected. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngSelected` directive solves this problem for the `selected` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        Check me to select: <input type=\"checkbox\" ng-model=\"selected\"><br/>\n        <select>\n          <option>Hello!</option>\n          <option id=\"greet\" ng-selected=\"selected\">Greetings!</option>\n        </select>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should select Greetings!', function() {\n          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();\n          element(by.model('selected')).click();\n          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element OPTION\n * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,\n *     then special attribute \"selected\" will be set on the element\n */\n\n/**\n * @ngdoc directive\n * @name ngOpen\n * @restrict A\n * @priority 100\n *\n * @description\n * The HTML specification does not require browsers to preserve the values of boolean attributes\n * such as open. (Their presence means true and their absence means false.)\n * If we put an Angular interpolation expression into such an attribute then the\n * binding information would be lost when the browser removes the attribute.\n * The `ngOpen` directive solves this problem for the `open` attribute.\n * This complementary directive is not removed by the browser and so provides\n * a permanent reliable place to store the binding information.\n * @example\n     <example>\n       <file name=\"index.html\">\n         Check me check multiple: <input type=\"checkbox\" ng-model=\"open\"><br/>\n         <details id=\"details\" ng-open=\"open\">\n            <summary>Show/Hide me</summary>\n         </details>\n       </file>\n       <file name=\"protractor.js\" type=\"protractor\">\n         it('should toggle open', function() {\n           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();\n           element(by.model('open')).click();\n           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();\n         });\n       </file>\n     </example>\n *\n * @element DETAILS\n * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,\n *     then special attribute \"open\" will be set on the element\n */\n\nvar ngAttributeAliasDirectives = {};\n\n\n// boolean attrs are evaluated\nforEach(BOOLEAN_ATTR, function(propName, attrName) {\n  // binding to multiple is not supported\n  if (propName == \"multiple\") return;\n\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      restrict: 'A',\n      priority: 100,\n      link: function(scope, element, attr) {\n        scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {\n          attr.$set(attrName, !!value);\n        });\n      }\n    };\n  };\n});\n\n// aliased input attrs are evaluated\nforEach(ALIASED_ATTR, function(htmlAttr, ngAttr) {\n  ngAttributeAliasDirectives[ngAttr] = function() {\n    return {\n      priority: 100,\n      link: function(scope, element, attr) {\n        //special case ngPattern when a literal regular expression value\n        //is used as the expression (this way we don't have to watch anything).\n        if (ngAttr === \"ngPattern\" && attr.ngPattern.charAt(0) == \"/\") {\n          var match = attr.ngPattern.match(REGEX_STRING_REGEXP);\n          if (match) {\n            attr.$set(\"ngPattern\", new RegExp(match[1], match[2]));\n            return;\n          }\n        }\n\n        scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) {\n          attr.$set(ngAttr, value);\n        });\n      }\n    };\n  };\n});\n\n// ng-src, ng-srcset, ng-href are interpolated\nforEach(['src', 'srcset', 'href'], function(attrName) {\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      priority: 99, // it needs to run after the attributes are interpolated\n      link: function(scope, element, attr) {\n        var propName = attrName,\n            name = attrName;\n\n        if (attrName === 'href' &&\n            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {\n          name = 'xlinkHref';\n          attr.$attr[name] = 'xlink:href';\n          propName = null;\n        }\n\n        attr.$observe(normalized, function(value) {\n          if (!value) {\n            if (attrName === 'href') {\n              attr.$set(name, null);\n            }\n            return;\n          }\n\n          attr.$set(name, value);\n\n          // on IE, if \"ng:src\" directive declaration is used and \"src\" attribute doesn't exist\n          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need\n          // to set the property as well to achieve the desired effect.\n          // we use attr[attrName] value since $set can sanitize the url.\n          if (msie && propName) element.prop(propName, attr[name]);\n        });\n      }\n    };\n  };\n});\n\n/* global -nullFormCtrl, -SUBMITTED_CLASS, addSetValidityMethod: true\n */\nvar nullFormCtrl = {\n  $addControl: noop,\n  $$renameControl: nullFormRenameControl,\n  $removeControl: noop,\n  $setValidity: noop,\n  $setDirty: noop,\n  $setPristine: noop,\n  $setSubmitted: noop\n},\nSUBMITTED_CLASS = 'ng-submitted';\n\nfunction nullFormRenameControl(control, name) {\n  control.$name = name;\n}\n\n/**\n * @ngdoc type\n * @name form.FormController\n *\n * @property {boolean} $pristine True if user has not interacted with the form yet.\n * @property {boolean} $dirty True if user has already interacted with the form.\n * @property {boolean} $valid True if all of the containing forms and controls are valid.\n * @property {boolean} $invalid True if at least one containing control or form is invalid.\n * @property {boolean} $submitted True if user has submitted the form even if its invalid.\n *\n * @property {Object} $error Is an object hash, containing references to controls or\n *  forms with failing validators, where:\n *\n *  - keys are validation tokens (error names),\n *  - values are arrays of controls or forms that have a failing validator for given error name.\n *\n *  Built-in validation tokens:\n *\n *  - `email`\n *  - `max`\n *  - `maxlength`\n *  - `min`\n *  - `minlength`\n *  - `number`\n *  - `pattern`\n *  - `required`\n *  - `url`\n *  - `date`\n *  - `datetimelocal`\n *  - `time`\n *  - `week`\n *  - `month`\n *\n * @description\n * `FormController` keeps track of all its controls and nested forms as well as the state of them,\n * such as being valid/invalid or dirty/pristine.\n *\n * Each {@link ng.directive:form form} directive creates an instance\n * of `FormController`.\n *\n */\n//asks for $scope to fool the BC controller module\nFormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate'];\nfunction FormController(element, attrs, $scope, $animate, $interpolate) {\n  var form = this,\n      controls = [];\n\n  var parentForm = form.$$parentForm = element.parent().controller('form') || nullFormCtrl;\n\n  // init state\n  form.$error = {};\n  form.$$success = {};\n  form.$pending = undefined;\n  form.$name = $interpolate(attrs.name || attrs.ngForm || '')($scope);\n  form.$dirty = false;\n  form.$pristine = true;\n  form.$valid = true;\n  form.$invalid = false;\n  form.$submitted = false;\n\n  parentForm.$addControl(form);\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$rollbackViewValue\n   *\n   * @description\n   * Rollback all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is typically needed by the reset button of\n   * a form that uses `ng-model-options` to pend updates.\n   */\n  form.$rollbackViewValue = function() {\n    forEach(controls, function(control) {\n      control.$rollbackViewValue();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$commitViewValue\n   *\n   * @description\n   * Commit all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  form.$commitViewValue = function() {\n    forEach(controls, function(control) {\n      control.$commitViewValue();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$addControl\n   *\n   * @description\n   * Register a control with the form.\n   *\n   * Input elements using ngModelController do this automatically when they are linked.\n   */\n  form.$addControl = function(control) {\n    // Breaking change - before, inputs whose name was \"hasOwnProperty\" were quietly ignored\n    // and not added to the scope.  Now we throw an error.\n    assertNotHasOwnProperty(control.$name, 'input');\n    controls.push(control);\n\n    if (control.$name) {\n      form[control.$name] = control;\n    }\n  };\n\n  // Private API: rename a form control\n  form.$$renameControl = function(control, newName) {\n    var oldName = control.$name;\n\n    if (form[oldName] === control) {\n      delete form[oldName];\n    }\n    form[newName] = control;\n    control.$name = newName;\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$removeControl\n   *\n   * @description\n   * Deregister a control from the form.\n   *\n   * Input elements using ngModelController do this automatically when they are destroyed.\n   */\n  form.$removeControl = function(control) {\n    if (control.$name && form[control.$name] === control) {\n      delete form[control.$name];\n    }\n    forEach(form.$pending, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n    forEach(form.$error, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n    forEach(form.$$success, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n\n    arrayRemove(controls, control);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setValidity\n   *\n   * @description\n   * Sets the validity of a form control.\n   *\n   * This method will also propagate to parent forms.\n   */\n  addSetValidityMethod({\n    ctrl: this,\n    $element: element,\n    set: function(object, property, controller) {\n      var list = object[property];\n      if (!list) {\n        object[property] = [controller];\n      } else {\n        var index = list.indexOf(controller);\n        if (index === -1) {\n          list.push(controller);\n        }\n      }\n    },\n    unset: function(object, property, controller) {\n      var list = object[property];\n      if (!list) {\n        return;\n      }\n      arrayRemove(list, controller);\n      if (list.length === 0) {\n        delete object[property];\n      }\n    },\n    parentForm: parentForm,\n    $animate: $animate\n  });\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setDirty\n   *\n   * @description\n   * Sets the form to a dirty state.\n   *\n   * This method can be called to add the 'ng-dirty' class and set the form to a dirty\n   * state (ng-dirty class). This method will also propagate to parent forms.\n   */\n  form.$setDirty = function() {\n    $animate.removeClass(element, PRISTINE_CLASS);\n    $animate.addClass(element, DIRTY_CLASS);\n    form.$dirty = true;\n    form.$pristine = false;\n    parentForm.$setDirty();\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setPristine\n   *\n   * @description\n   * Sets the form to its pristine state.\n   *\n   * This method can be called to remove the 'ng-dirty' class and set the form to its pristine\n   * state (ng-pristine class). This method will also propagate to all the controls contained\n   * in this form.\n   *\n   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after\n   * saving or resetting it.\n   */\n  form.$setPristine = function() {\n    $animate.setClass(element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS);\n    form.$dirty = false;\n    form.$pristine = true;\n    form.$submitted = false;\n    forEach(controls, function(control) {\n      control.$setPristine();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setUntouched\n   *\n   * @description\n   * Sets the form to its untouched state.\n   *\n   * This method can be called to remove the 'ng-touched' class and set the form controls to their\n   * untouched state (ng-untouched class).\n   *\n   * Setting a form controls back to their untouched state is often useful when setting the form\n   * back to its pristine state.\n   */\n  form.$setUntouched = function() {\n    forEach(controls, function(control) {\n      control.$setUntouched();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setSubmitted\n   *\n   * @description\n   * Sets the form to its submitted state.\n   */\n  form.$setSubmitted = function() {\n    $animate.addClass(element, SUBMITTED_CLASS);\n    form.$submitted = true;\n    parentForm.$setSubmitted();\n  };\n}\n\n/**\n * @ngdoc directive\n * @name ngForm\n * @restrict EAC\n *\n * @description\n * Nestable alias of {@link ng.directive:form `form`} directive. HTML\n * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a\n * sub-group of controls needs to be determined.\n *\n * Note: the purpose of `ngForm` is to group controls,\n * but not to be a replacement for the `<form>` tag with all of its capabilities\n * (e.g. posting to the server, ...).\n *\n * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n *\n */\n\n /**\n * @ngdoc directive\n * @name form\n * @restrict E\n *\n * @description\n * Directive that instantiates\n * {@link form.FormController FormController}.\n *\n * If the `name` attribute is specified, the form controller is published onto the current scope under\n * this name.\n *\n * # Alias: {@link ng.directive:ngForm `ngForm`}\n *\n * In Angular, forms can be nested. This means that the outer form is valid when all of the child\n * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so\n * Angular provides the {@link ng.directive:ngForm `ngForm`} directive which behaves identically to\n * `<form>` but can be nested.  This allows you to have nested forms, which is very useful when\n * using Angular validation directives in forms that are dynamically generated using the\n * {@link ng.directive:ngRepeat `ngRepeat`} directive. Since you cannot dynamically generate the `name`\n * attribute of input elements using interpolation, you have to wrap each set of repeated inputs in an\n * `ngForm` directive and nest these in an outer `form` element.\n *\n *\n * # CSS classes\n *  - `ng-valid` is set if the form is valid.\n *  - `ng-invalid` is set if the form is invalid.\n *  - `ng-pristine` is set if the form is pristine.\n *  - `ng-dirty` is set if the form is dirty.\n *  - `ng-submitted` is set if the form was submitted.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n *\n * # Submitting a form and preventing the default action\n *\n * Since the role of forms in client-side Angular applications is different than in classical\n * roundtrip apps, it is desirable for the browser not to translate the form submission into a full\n * page reload that sends the data to the server. Instead some javascript logic should be triggered\n * to handle the form submission in an application-specific way.\n *\n * For this reason, Angular prevents the default action (form submission to the server) unless the\n * `<form>` element has an `action` attribute specified.\n *\n * You can use one of the following two ways to specify what javascript method should be called when\n * a form is submitted:\n *\n * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element\n * - {@link ng.directive:ngClick ngClick} directive on the first\n  *  button or input field of type submit (input[type=submit])\n *\n * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}\n * or {@link ng.directive:ngClick ngClick} directives.\n * This is because of the following form submission rules in the HTML specification:\n *\n * - If a form has only one input field then hitting enter in this field triggers form submit\n * (`ngSubmit`)\n * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter\n * doesn't trigger submit\n * - if a form has one or more input fields and one or more buttons or input[type=submit] then\n * hitting enter in any of the input fields will trigger the click handler on the *first* button or\n * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)\n *\n * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is\n * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * ## Animation Hooks\n *\n * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.\n * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any\n * other validations that are performed within the form. Animations in ngForm are similar to how\n * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well\n * as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style a form element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-form {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-form.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n    <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"formExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('formExample', [])\n           .controller('FormController', ['$scope', function($scope) {\n             $scope.userType = 'guest';\n           }]);\n       </script>\n       <style>\n        .my-form {\n          -webkit-transition:all linear 0.5s;\n          transition:all linear 0.5s;\n          background: transparent;\n        }\n        .my-form.ng-invalid {\n          background: red;\n        }\n       </style>\n       <form name=\"myForm\" ng-controller=\"FormController\" class=\"my-form\">\n         userType: <input name=\"input\" ng-model=\"userType\" required>\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">Required!</span><br>\n         <code>userType = {{userType}}</code><br>\n         <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br>\n         <code>myForm.input.$error = {{myForm.input.$error}}</code><br>\n         <code>myForm.$valid = {{myForm.$valid}}</code><br>\n         <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should initialize to model', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n\n          expect(userType.getText()).toContain('guest');\n          expect(valid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var userInput = element(by.model('userType'));\n\n          userInput.clear();\n          userInput.sendKeys('');\n\n          expect(userType.getText()).toEqual('userType =');\n          expect(valid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n *\n * @param {string=} name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n */\nvar formDirectiveFactory = function(isNgForm) {\n  return ['$timeout', function($timeout) {\n    var formDirective = {\n      name: 'form',\n      restrict: isNgForm ? 'EAC' : 'E',\n      controller: FormController,\n      compile: function ngFormCompile(formElement, attr) {\n        // Setup initial state of the control\n        formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS);\n\n        var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false);\n\n        return {\n          pre: function ngFormPreLink(scope, formElement, attr, controller) {\n            // if `action` attr is not present on the form, prevent the default action (submission)\n            if (!('action' in attr)) {\n              // we can't use jq events because if a form is destroyed during submission the default\n              // action is not prevented. see #1238\n              //\n              // IE 9 is not affected because it doesn't fire a submit event and try to do a full\n              // page reload if the form was destroyed by submission of the form via a click handler\n              // on a button in the form. Looks like an IE9 specific bug.\n              var handleFormSubmission = function(event) {\n                scope.$apply(function() {\n                  controller.$commitViewValue();\n                  controller.$setSubmitted();\n                });\n\n                event.preventDefault();\n              };\n\n              addEventListenerFn(formElement[0], 'submit', handleFormSubmission);\n\n              // unregister the preventDefault listener so that we don't not leak memory but in a\n              // way that will achieve the prevention of the default action.\n              formElement.on('$destroy', function() {\n                $timeout(function() {\n                  removeEventListenerFn(formElement[0], 'submit', handleFormSubmission);\n                }, 0, false);\n              });\n            }\n\n            var parentFormCtrl = controller.$$parentForm;\n\n            if (nameAttr) {\n              setter(scope, null, controller.$name, controller, controller.$name);\n              attr.$observe(nameAttr, function(newValue) {\n                if (controller.$name === newValue) return;\n                setter(scope, null, controller.$name, undefined, controller.$name);\n                parentFormCtrl.$$renameControl(controller, newValue);\n                setter(scope, null, controller.$name, controller, controller.$name);\n              });\n            }\n            formElement.on('$destroy', function() {\n              parentFormCtrl.$removeControl(controller);\n              if (nameAttr) {\n                setter(scope, null, attr[nameAttr], undefined, controller.$name);\n              }\n              extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards\n            });\n          }\n        };\n      }\n    };\n\n    return formDirective;\n  }];\n};\n\nvar formDirective = formDirectiveFactory();\nvar ngFormDirective = formDirectiveFactory(true);\n\n/* global VALID_CLASS: false,\n  INVALID_CLASS: false,\n  PRISTINE_CLASS: false,\n  DIRTY_CLASS: false,\n  UNTOUCHED_CLASS: false,\n  TOUCHED_CLASS: false,\n  ngModelMinErr: false,\n*/\n\n// Regex code is obtained from SO: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231\nvar ISO_DATE_REGEXP = /\\d{4}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\d\\.\\d+([+-][0-2]\\d:[0-5]\\d|Z)/;\nvar URL_REGEXP = /^(ftp|http|https):\\/\\/(\\w+:{0,1}\\w*@)?(\\S+)(:[0-9]+)?(\\/|\\/([\\w#!:.?+=&%@!\\-\\/]))?$/;\nvar EMAIL_REGEXP = /^[a-z0-9!#$%&'*+\\/=?^_`{|}~.-]+@[a-z0-9]([a-z0-9-]*[a-z0-9])?(\\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$/i;\nvar NUMBER_REGEXP = /^\\s*(\\-|\\+)?(\\d+|(\\d*(\\.\\d*)))\\s*$/;\nvar DATE_REGEXP = /^(\\d{4})-(\\d{2})-(\\d{2})$/;\nvar DATETIMELOCAL_REGEXP = /^(\\d{4})-(\\d\\d)-(\\d\\d)T(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\nvar WEEK_REGEXP = /^(\\d{4})-W(\\d\\d)$/;\nvar MONTH_REGEXP = /^(\\d{4})-(\\d\\d)$/;\nvar TIME_REGEXP = /^(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\n\nvar inputType = {\n\n  /**\n   * @ngdoc input\n   * @name input[text]\n   *\n   * @description\n   * Standard HTML text input with angular data binding, inherited by most of the `input` elements.\n   *\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Adds `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object then this is used directly.\n   *    If the expression is a string then it will be converted to a RegExp after wrapping it in `^` and `$`\n   *    characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n   *    This parameter is ignored for input[type=password] controls, which will never trim the\n   *    input.\n   *\n   * @example\n      <example name=\"text-input-directive\" module=\"textInputExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('textInputExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 text: 'guest',\n                 word: /^\\s*\\w*\\s*$/\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           Single word: <input type=\"text\" name=\"input\" ng-model=\"example.text\"\n                               ng-pattern=\"example.word\" required ng-trim=\"false\">\n           <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n             Required!</span>\n           <span class=\"error\" ng-show=\"myForm.input.$error.pattern\">\n             Single word only!</span>\n\n           <tt>text = {{example.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('example.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('guest');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if multi word', function() {\n            input.clear();\n            input.sendKeys('hello world');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'text': textInputType,\n\n    /**\n     * @ngdoc input\n     * @name input[date]\n     *\n     * @description\n     * Input with date validation and transformation. In browsers that do not yet support\n     * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601\n     * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many\n     * modern browsers do not yet support this input type, it is important to provide cues to users on the\n     * expected input format via a placeholder or label.\n     *\n     * The model must always be a Date object, otherwise Angular will throw an error.\n     * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n     *\n     * The timezone to be used to read/write the `Date` instance in the model can be defined using\n     * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n     *\n     * @param {string} ngModel Assignable angular expression to data-bind to.\n     * @param {string=} name Property name of the form under which the control is published.\n     * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n     * valid ISO date string (yyyy-MM-dd).\n     * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n     * a valid ISO date string (yyyy-MM-dd).\n     * @param {string=} required Sets `required` validation error key if the value is not entered.\n     * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n     *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n     *    `required` when you want to data-bind to the `required` attribute.\n     * @param {string=} ngChange Angular expression to be executed when input changes due to user\n     *    interaction with the input element.\n     *\n     * @example\n     <example name=\"date-input-directive\" module=\"dateInputExample\">\n     <file name=\"index.html\">\n       <script>\n          angular.module('dateInputExample', [])\n            .controller('DateController', ['$scope', function($scope) {\n              $scope.example = {\n                value: new Date(2013, 9, 22)\n              };\n            }]);\n       </script>\n       <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n          Pick a date in 2013:\n          <input type=\"date\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n              placeholder=\"yyyy-MM-dd\" min=\"2013-01-01\" max=\"2013-12-31\" required />\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.date\">\n              Not a valid date!</span>\n           <tt>value = {{example.value | date: \"yyyy-MM-dd\"}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n       </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        var value = element(by.binding('example.value | date: \"yyyy-MM-dd\"'));\n        var valid = element(by.binding('myForm.input.$valid'));\n        var input = element(by.model('example.value'));\n\n        // currently protractor/webdriver does not support\n        // sending keys to all known HTML5 input controls\n        // for various browsers (see https://github.com/angular/protractor/issues/562).\n        function setInput(val) {\n          // set the value of the element and force validation.\n          var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n          \"ipt.value = '\" + val + \"';\" +\n          \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n          browser.executeScript(scr);\n        }\n\n        it('should initialize to model', function() {\n          expect(value.getText()).toContain('2013-10-22');\n          expect(valid.getText()).toContain('myForm.input.$valid = true');\n        });\n\n        it('should be invalid if empty', function() {\n          setInput('');\n          expect(value.getText()).toEqual('value =');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n\n        it('should be invalid if over max', function() {\n          setInput('2015-01-01');\n          expect(value.getText()).toContain('');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n     </file>\n     </example>\n     */\n  'date': createDateInputType('date', DATE_REGEXP,\n         createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']),\n         'yyyy-MM-dd'),\n\n   /**\n    * @ngdoc input\n    * @name input[datetime-local]\n    *\n    * @description\n    * Input with datetime validation and transformation. In browsers that do not yet support\n    * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.\n    *\n    * The model must always be a Date object, otherwise Angular will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable angular expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n    * valid ISO datetime format (yyyy-MM-ddTHH:mm:ss).\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n    * a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss).\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange Angular expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"datetimelocal-input-directive\" module=\"dateExample\">\n    <file name=\"index.html\">\n      <script>\n        angular.module('dateExample', [])\n          .controller('DateController', ['$scope', function($scope) {\n            $scope.example = {\n              value: new Date(2010, 11, 28, 14, 57)\n            };\n          }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        Pick a date between in 2013:\n        <input type=\"datetime-local\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"yyyy-MM-ddTHH:mm:ss\" min=\"2001-01-01T00:00:00\" max=\"2013-12-31T00:00:00\" required />\n        <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n        <span class=\"error\" ng-show=\"myForm.input.$error.datetimelocal\">\n            Not a valid date!</span>\n        <tt>value = {{example.value | date: \"yyyy-MM-ddTHH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM-ddTHH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2010-12-28T14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01-01T23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP,\n      createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']),\n      'yyyy-MM-ddTHH:mm:ss.sss'),\n\n  /**\n   * @ngdoc input\n   * @name input[time]\n   *\n   * @description\n   * Input with time validation and transformation. In browsers that do not yet support\n   * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a\n   * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.\n   *\n   * The model must always be a Date object, otherwise Angular will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n   * valid ISO time format (HH:mm:ss).\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be a\n   * valid ISO time format (HH:mm:ss).\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"time-input-directive\" module=\"timeExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('timeExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(1970, 0, 1, 14, 57, 0)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        Pick a between 8am and 5pm:\n        <input type=\"time\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"HH:mm:ss\" min=\"08:00:00\" max=\"17:00:00\" required />\n        <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n        <span class=\"error\" ng-show=\"myForm.input.$error.time\">\n            Not a valid date!</span>\n        <tt>value = {{example.value | date: \"HH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"HH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'time': createDateInputType('time', TIME_REGEXP,\n      createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']),\n     'HH:mm:ss.sss'),\n\n   /**\n    * @ngdoc input\n    * @name input[week]\n    *\n    * @description\n    * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support\n    * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * week format (yyyy-W##), for example: `2013-W02`.\n    *\n    * The model must always be a Date object, otherwise Angular will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable angular expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n    * valid ISO week format (yyyy-W##).\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n    * a valid ISO week format (yyyy-W##).\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange Angular expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"week-input-directive\" module=\"weekExample\">\n    <file name=\"index.html\">\n      <script>\n      angular.module('weekExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 0, 3)\n          };\n        }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        Pick a date between in 2013:\n        <input id=\"exampleInput\" type=\"week\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"YYYY-W##\" min=\"2012-W32\" max=\"2013-W52\" required />\n        <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n        <span class=\"error\" ng-show=\"myForm.input.$error.week\">\n            Not a valid date!</span>\n        <tt>value = {{example.value | date: \"yyyy-Www\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-Www\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-W01');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-W01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'),\n\n  /**\n   * @ngdoc input\n   * @name input[month]\n   *\n   * @description\n   * Input with month validation and transformation. In browsers that do not yet support\n   * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * month format (yyyy-MM), for example: `2009-01`.\n   *\n   * The model must always be a Date object, otherwise Angular will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   * If the model is not set to the first of the month, the next view to model update will set it\n   * to the first of the month.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be\n   * a valid ISO month format (yyyy-MM).\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must\n   * be a valid ISO month format (yyyy-MM).\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"month-input-directive\" module=\"monthExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('monthExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 9, 1)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n       Pick a month in 2013:\n       <input id=\"exampleInput\" type=\"month\" name=\"input\" ng-model=\"example.value\"\n          placeholder=\"yyyy-MM\" min=\"2013-01\" max=\"2013-12\" required />\n       <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n          Required!</span>\n       <span class=\"error\" ng-show=\"myForm.input.$error.month\">\n          Not a valid month!</span>\n       <tt>value = {{example.value | date: \"yyyy-MM\"}}</tt><br/>\n       <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n       <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n       <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n       <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-10');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'month': createDateInputType('month', MONTH_REGEXP,\n     createDateParser(MONTH_REGEXP, ['yyyy', 'MM']),\n     'yyyy-MM'),\n\n  /**\n   * @ngdoc input\n   * @name input[number]\n   *\n   * @description\n   * Text input with number validation and transformation. Sets the `number` validation\n   * error if not a valid number.\n   *\n   * <div class=\"alert alert-warning\">\n   * The model must always be of type `number` otherwise Angular will throw an error.\n   * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt}\n   * error docs for more information and an example of how to convert your model if necessary.\n   * </div>\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object then this is used directly.\n   *    If the expression is a string then it will be converted to a RegExp after wrapping it in `^` and `$`\n   *    characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"number-input-directive\" module=\"numberExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('numberExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 value: 12\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           Number: <input type=\"number\" name=\"input\" ng-model=\"example.value\"\n                          min=\"0\" max=\"99\" required>\n           <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n             Required!</span>\n           <span class=\"error\" ng-show=\"myForm.input.$error.number\">\n             Not valid number!</span>\n           <tt>value = {{example.value}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var value = element(by.binding('example.value'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.value'));\n\n          it('should initialize to model', function() {\n            expect(value.getText()).toContain('12');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if over max', function() {\n            input.clear();\n            input.sendKeys('123');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'number': numberInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[url]\n   *\n   * @description\n   * Text input with URL validation. Sets the `url` validation error key if the content is not a\n   * valid URL.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[url]` uses a regex to validate urls that is derived from the regex\n   * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify\n   * the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object then this is used directly.\n   *    If the expression is a string then it will be converted to a RegExp after wrapping it in `^` and `$`\n   *    characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"url-input-directive\" module=\"urlExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('urlExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.url = {\n                 text: 'http://google.com'\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           URL: <input type=\"url\" name=\"input\" ng-model=\"url.text\" required>\n           <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n             Required!</span>\n           <span class=\"error\" ng-show=\"myForm.input.$error.url\">\n             Not valid url!</span>\n           <tt>text = {{url.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('url.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('url.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('http://google.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not url', function() {\n            input.clear();\n            input.sendKeys('box');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'url': urlInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[email]\n   *\n   * @description\n   * Text input with email validation. Sets the `email` validation error key if not a valid email\n   * address.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex\n   * used in Chromium. If you need stricter validation (e.g. requiring a top-level domain), you can\n   * use `ng-pattern` or modify the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object then this is used directly.\n   *    If the expression is a string then it will be converted to a RegExp after wrapping it in `^` and `$`\n   *    characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"email-input-directive\" module=\"emailExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('emailExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.email = {\n                 text: 'me@example.com'\n               };\n             }]);\n         </script>\n           <form name=\"myForm\" ng-controller=\"ExampleController\">\n             Email: <input type=\"email\" name=\"input\" ng-model=\"email.text\" required>\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.email\">\n               Not valid email!</span>\n             <tt>text = {{email.text}}</tt><br/>\n             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>\n           </form>\n         </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('email.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('email.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('me@example.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not email', function() {\n            input.clear();\n            input.sendKeys('xxx');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'email': emailInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[radio]\n   *\n   * @description\n   * HTML radio button.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string} value The value to which the expression should be set when selected.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {string} ngValue Angular expression which sets the value to which the expression should\n   *    be set when selected.\n   *\n   * @example\n      <example name=\"radio-input-directive\" module=\"radioExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('radioExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.color = {\n                 name: 'blue'\n               };\n               $scope.specialValue = {\n                 \"id\": \"12345\",\n                 \"value\": \"green\"\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <input type=\"radio\" ng-model=\"color.name\" value=\"red\">  Red <br/>\n           <input type=\"radio\" ng-model=\"color.name\" ng-value=\"specialValue\"> Green <br/>\n           <input type=\"radio\" ng-model=\"color.name\" value=\"blue\"> Blue <br/>\n           <tt>color = {{color.name | json}}</tt><br/>\n          </form>\n          Note that `ng-value=\"specialValue\"` sets radio item's value to be the value of `$scope.specialValue`.\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var color = element(by.binding('color.name'));\n\n            expect(color.getText()).toContain('blue');\n\n            element.all(by.model('color.name')).get(0).click();\n\n            expect(color.getText()).toContain('red');\n          });\n        </file>\n      </example>\n   */\n  'radio': radioInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[checkbox]\n   *\n   * @description\n   * HTML checkbox.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {expression=} ngTrueValue The value to which the expression should be set when selected.\n   * @param {expression=} ngFalseValue The value to which the expression should be set when not selected.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"checkbox-input-directive\" module=\"checkboxExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('checkboxExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.checkboxModel = {\n                value1 : true,\n                value2 : 'YES'\n              };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           Value1: <input type=\"checkbox\" ng-model=\"checkboxModel.value1\"> <br/>\n           Value2: <input type=\"checkbox\" ng-model=\"checkboxModel.value2\"\n                          ng-true-value=\"'YES'\" ng-false-value=\"'NO'\"> <br/>\n           <tt>value1 = {{checkboxModel.value1}}</tt><br/>\n           <tt>value2 = {{checkboxModel.value2}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var value1 = element(by.binding('checkboxModel.value1'));\n            var value2 = element(by.binding('checkboxModel.value2'));\n\n            expect(value1.getText()).toContain('true');\n            expect(value2.getText()).toContain('YES');\n\n            element(by.model('checkboxModel.value1')).click();\n            element(by.model('checkboxModel.value2')).click();\n\n            expect(value1.getText()).toContain('false');\n            expect(value2.getText()).toContain('NO');\n          });\n        </file>\n      </example>\n   */\n  'checkbox': checkboxInputType,\n\n  'hidden': noop,\n  'button': noop,\n  'submit': noop,\n  'reset': noop,\n  'file': noop\n};\n\nfunction stringBasedInputType(ctrl) {\n  ctrl.$formatters.push(function(value) {\n    return ctrl.$isEmpty(value) ? value : value.toString();\n  });\n}\n\nfunction textInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n}\n\nfunction baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  var type = lowercase(element[0].type);\n\n  // In composition mode, users are still inputing intermediate text buffer,\n  // hold the listener until composition is done.\n  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent\n  if (!$sniffer.android) {\n    var composing = false;\n\n    element.on('compositionstart', function(data) {\n      composing = true;\n    });\n\n    element.on('compositionend', function() {\n      composing = false;\n      listener();\n    });\n  }\n\n  var listener = function(ev) {\n    if (timeout) {\n      $browser.defer.cancel(timeout);\n      timeout = null;\n    }\n    if (composing) return;\n    var value = element.val(),\n        event = ev && ev.type;\n\n    // By default we will trim the value\n    // If the attribute ng-trim exists we will avoid trimming\n    // If input type is 'password', the value is never trimmed\n    if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) {\n      value = trim(value);\n    }\n\n    // If a control is suffering from bad input (due to native validators), browsers discard its\n    // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the\n    // control's value is the same empty value twice in a row.\n    if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) {\n      ctrl.$setViewValue(value, event);\n    }\n  };\n\n  // if the browser does support \"input\" event, we are fine - except on IE9 which doesn't fire the\n  // input event on backspace, delete or cut\n  if ($sniffer.hasEvent('input')) {\n    element.on('input', listener);\n  } else {\n    var timeout;\n\n    var deferListener = function(ev, input, origValue) {\n      if (!timeout) {\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (!input || input.value !== origValue) {\n            listener(ev);\n          }\n        });\n      }\n    };\n\n    element.on('keydown', function(event) {\n      var key = event.keyCode;\n\n      // ignore\n      //    command            modifiers                   arrows\n      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;\n\n      deferListener(event, this, this.value);\n    });\n\n    // if user modifies input value using context menu in IE, we need \"paste\" and \"cut\" events to catch it\n    if ($sniffer.hasEvent('paste')) {\n      element.on('paste cut', deferListener);\n    }\n  }\n\n  // if user paste into input using mouse on older browser\n  // or form autocomplete on newer browser, we need \"change\" event to catch it\n  element.on('change', listener);\n\n  ctrl.$render = function() {\n    element.val(ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue);\n  };\n}\n\nfunction weekParser(isoWeek, existingDate) {\n  if (isDate(isoWeek)) {\n    return isoWeek;\n  }\n\n  if (isString(isoWeek)) {\n    WEEK_REGEXP.lastIndex = 0;\n    var parts = WEEK_REGEXP.exec(isoWeek);\n    if (parts) {\n      var year = +parts[1],\n          week = +parts[2],\n          hours = 0,\n          minutes = 0,\n          seconds = 0,\n          milliseconds = 0,\n          firstThurs = getFirstThursdayOfYear(year),\n          addDays = (week - 1) * 7;\n\n      if (existingDate) {\n        hours = existingDate.getHours();\n        minutes = existingDate.getMinutes();\n        seconds = existingDate.getSeconds();\n        milliseconds = existingDate.getMilliseconds();\n      }\n\n      return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds);\n    }\n  }\n\n  return NaN;\n}\n\nfunction createDateParser(regexp, mapping) {\n  return function(iso, date) {\n    var parts, map;\n\n    if (isDate(iso)) {\n      return iso;\n    }\n\n    if (isString(iso)) {\n      // When a date is JSON'ified to wraps itself inside of an extra\n      // set of double quotes. This makes the date parsing code unable\n      // to match the date string and parse it as a date.\n      if (iso.charAt(0) == '\"' && iso.charAt(iso.length - 1) == '\"') {\n        iso = iso.substring(1, iso.length - 1);\n      }\n      if (ISO_DATE_REGEXP.test(iso)) {\n        return new Date(iso);\n      }\n      regexp.lastIndex = 0;\n      parts = regexp.exec(iso);\n\n      if (parts) {\n        parts.shift();\n        if (date) {\n          map = {\n            yyyy: date.getFullYear(),\n            MM: date.getMonth() + 1,\n            dd: date.getDate(),\n            HH: date.getHours(),\n            mm: date.getMinutes(),\n            ss: date.getSeconds(),\n            sss: date.getMilliseconds() / 1000\n          };\n        } else {\n          map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 };\n        }\n\n        forEach(parts, function(part, index) {\n          if (index < mapping.length) {\n            map[mapping[index]] = +part;\n          }\n        });\n        return new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0);\n      }\n    }\n\n    return NaN;\n  };\n}\n\nfunction createDateInputType(type, regexp, parseDate, format) {\n  return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter) {\n    badInputChecker(scope, element, attr, ctrl);\n    baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n    var timezone = ctrl && ctrl.$options && ctrl.$options.timezone;\n    var previousDate;\n\n    ctrl.$$parserName = type;\n    ctrl.$parsers.push(function(value) {\n      if (ctrl.$isEmpty(value)) return null;\n      if (regexp.test(value)) {\n        // Note: We cannot read ctrl.$modelValue, as there might be a different\n        // parser/formatter in the processing chain so that the model\n        // contains some different data format!\n        var parsedDate = parseDate(value, previousDate);\n        if (timezone === 'UTC') {\n          parsedDate.setMinutes(parsedDate.getMinutes() - parsedDate.getTimezoneOffset());\n        }\n        return parsedDate;\n      }\n      return undefined;\n    });\n\n    ctrl.$formatters.push(function(value) {\n      if (value && !isDate(value)) {\n        throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value);\n      }\n      if (isValidDate(value)) {\n        previousDate = value;\n        if (previousDate && timezone === 'UTC') {\n          var timezoneOffset = 60000 * previousDate.getTimezoneOffset();\n          previousDate = new Date(previousDate.getTime() + timezoneOffset);\n        }\n        return $filter('date')(value, format, timezone);\n      } else {\n        previousDate = null;\n        return '';\n      }\n    });\n\n    if (isDefined(attr.min) || attr.ngMin) {\n      var minVal;\n      ctrl.$validators.min = function(value) {\n        return !isValidDate(value) || isUndefined(minVal) || parseDate(value) >= minVal;\n      };\n      attr.$observe('min', function(val) {\n        minVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    if (isDefined(attr.max) || attr.ngMax) {\n      var maxVal;\n      ctrl.$validators.max = function(value) {\n        return !isValidDate(value) || isUndefined(maxVal) || parseDate(value) <= maxVal;\n      };\n      attr.$observe('max', function(val) {\n        maxVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    function isValidDate(value) {\n      // Invalid Date: getTime() returns NaN\n      return value && !(value.getTime && value.getTime() !== value.getTime());\n    }\n\n    function parseObservedDateValue(val) {\n      return isDefined(val) ? (isDate(val) ? val : parseDate(val)) : undefined;\n    }\n  };\n}\n\nfunction badInputChecker(scope, element, attr, ctrl) {\n  var node = element[0];\n  var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity);\n  if (nativeValidation) {\n    ctrl.$parsers.push(function(value) {\n      var validity = element.prop(VALIDITY_STATE_PROPERTY) || {};\n      // Detect bug in FF35 for input[email] (https://bugzilla.mozilla.org/show_bug.cgi?id=1064430):\n      // - also sets validity.badInput (should only be validity.typeMismatch).\n      // - see http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#e-mail-state-(type=email)\n      // - can ignore this case as we can still read out the erroneous email...\n      return validity.badInput && !validity.typeMismatch ? undefined : value;\n    });\n  }\n}\n\nfunction numberInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  ctrl.$$parserName = 'number';\n  ctrl.$parsers.push(function(value) {\n    if (ctrl.$isEmpty(value))      return null;\n    if (NUMBER_REGEXP.test(value)) return parseFloat(value);\n    return undefined;\n  });\n\n  ctrl.$formatters.push(function(value) {\n    if (!ctrl.$isEmpty(value)) {\n      if (!isNumber(value)) {\n        throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value);\n      }\n      value = value.toString();\n    }\n    return value;\n  });\n\n  if (isDefined(attr.min) || attr.ngMin) {\n    var minVal;\n    ctrl.$validators.min = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(minVal) || value >= minVal;\n    };\n\n    attr.$observe('min', function(val) {\n      if (isDefined(val) && !isNumber(val)) {\n        val = parseFloat(val, 10);\n      }\n      minVal = isNumber(val) && !isNaN(val) ? val : undefined;\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n\n  if (isDefined(attr.max) || attr.ngMax) {\n    var maxVal;\n    ctrl.$validators.max = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(maxVal) || value <= maxVal;\n    };\n\n    attr.$observe('max', function(val) {\n      if (isDefined(val) && !isNumber(val)) {\n        val = parseFloat(val, 10);\n      }\n      maxVal = isNumber(val) && !isNaN(val) ? val : undefined;\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n}\n\nfunction urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'url';\n  ctrl.$validators.url = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || URL_REGEXP.test(value);\n  };\n}\n\nfunction emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'email';\n  ctrl.$validators.email = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value);\n  };\n}\n\nfunction radioInputType(scope, element, attr, ctrl) {\n  // make the name unique, if not defined\n  if (isUndefined(attr.name)) {\n    element.attr('name', nextUid());\n  }\n\n  var listener = function(ev) {\n    if (element[0].checked) {\n      ctrl.$setViewValue(attr.value, ev && ev.type);\n    }\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    var value = attr.value;\n    element[0].checked = (value == ctrl.$viewValue);\n  };\n\n  attr.$observe('value', ctrl.$render);\n}\n\nfunction parseConstantExpr($parse, context, name, expression, fallback) {\n  var parseFn;\n  if (isDefined(expression)) {\n    parseFn = $parse(expression);\n    if (!parseFn.constant) {\n      throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' +\n                                   '`{1}`.', name, expression);\n    }\n    return parseFn(context);\n  }\n  return fallback;\n}\n\nfunction checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true);\n  var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false);\n\n  var listener = function(ev) {\n    ctrl.$setViewValue(element[0].checked, ev && ev.type);\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    element[0].checked = ctrl.$viewValue;\n  };\n\n  // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false`\n  // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert\n  // it to a boolean.\n  ctrl.$isEmpty = function(value) {\n    return value === false;\n  };\n\n  ctrl.$formatters.push(function(value) {\n    return equals(value, trueValue);\n  });\n\n  ctrl.$parsers.push(function(value) {\n    return value ? trueValue : falseValue;\n  });\n}\n\n\n/**\n * @ngdoc directive\n * @name textarea\n * @restrict E\n *\n * @description\n * HTML textarea element control with angular data-binding. The data-binding and validation\n * properties of this element are exactly the same as those of the\n * {@link ng.directive:input input element}.\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n *    patterns defined as scope expressions.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n */\n\n\n/**\n * @ngdoc directive\n * @name input\n * @restrict E\n *\n * @description\n * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding,\n * input state control, and validation.\n * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Not every feature offered is available for all input types.\n * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`.\n * </div>\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {boolean=} ngRequired Sets `required` attribute if set to true\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the\n *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for\n *    patterns defined as scope expressions.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n *    This parameter is ignored for input[type=password] controls, which will never trim the\n *    input.\n *\n * @example\n    <example name=\"input-directive\" module=\"inputExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('inputExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.user = {name: 'guest', last: 'visitor'};\n            }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <form name=\"myForm\">\n           User name: <input type=\"text\" name=\"userName\" ng-model=\"user.name\" required>\n           <span class=\"error\" ng-show=\"myForm.userName.$error.required\">\n             Required!</span><br>\n           Last name: <input type=\"text\" name=\"lastName\" ng-model=\"user.last\"\n             ng-minlength=\"3\" ng-maxlength=\"10\">\n           <span class=\"error\" ng-show=\"myForm.lastName.$error.minlength\">\n             Too short!</span>\n           <span class=\"error\" ng-show=\"myForm.lastName.$error.maxlength\">\n             Too long!</span><br>\n         </form>\n         <hr>\n         <tt>user = {{user}}</tt><br/>\n         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br>\n         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br>\n         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br>\n         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br>\n         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br>\n         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br>\n       </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var user = element(by.exactBinding('user'));\n        var userNameValid = element(by.binding('myForm.userName.$valid'));\n        var lastNameValid = element(by.binding('myForm.lastName.$valid'));\n        var lastNameError = element(by.binding('myForm.lastName.$error'));\n        var formValid = element(by.binding('myForm.$valid'));\n        var userNameInput = element(by.model('user.name'));\n        var userLastInput = element(by.model('user.last'));\n\n        it('should initialize to model', function() {\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty when required', function() {\n          userNameInput.clear();\n          userNameInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('false');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be valid if empty when min length is set', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"\"}');\n          expect(lastNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if less than required min length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('xx');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('minlength');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be invalid if longer than max length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('some ridiculously long name');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('maxlength');\n          expect(formValid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n */\nvar inputDirective = ['$browser', '$sniffer', '$filter', '$parse',\n    function($browser, $sniffer, $filter, $parse) {\n  return {\n    restrict: 'E',\n    require: ['?ngModel'],\n    link: {\n      pre: function(scope, element, attr, ctrls) {\n        if (ctrls[0]) {\n          (inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrls[0], $sniffer,\n                                                              $browser, $filter, $parse);\n        }\n      }\n    }\n  };\n}];\n\n\n\nvar CONSTANT_VALUE_REGEXP = /^(true|false|\\d+)$/;\n/**\n * @ngdoc directive\n * @name ngValue\n *\n * @description\n * Binds the given expression to the value of `<option>` or {@link input[radio] `input[radio]`},\n * so that when the element is selected, the {@link ngModel `ngModel`} of that element is set to\n * the bound value.\n *\n * `ngValue` is useful when dynamically generating lists of radio buttons using\n * {@link ngRepeat `ngRepeat`}, as shown below.\n *\n * Likewise, `ngValue` can be used to generate `<option>` elements for\n * the {@link select `select`} element. In that case however, only strings are supported\n * for the `value `attribute, so the resulting `ngModel` will always be a string.\n * Support for `select` models with non-string values is available via `ngOptions`.\n *\n * @element input\n * @param {string=} ngValue angular expression, whose value will be bound to the `value` attribute\n *   of the `input` element\n *\n * @example\n    <example name=\"ngValue-directive\" module=\"valueExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('valueExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.names = ['pizza', 'unicorns', 'robots'];\n              $scope.my = { favorite: 'unicorns' };\n            }]);\n       </script>\n        <form ng-controller=\"ExampleController\">\n          <h2>Which is your favorite?</h2>\n            <label ng-repeat=\"name in names\" for=\"{{name}}\">\n              {{name}}\n              <input type=\"radio\"\n                     ng-model=\"my.favorite\"\n                     ng-value=\"name\"\n                     id=\"{{name}}\"\n                     name=\"favorite\">\n            </label>\n          <div>You chose {{my.favorite}}</div>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var favorite = element(by.binding('my.favorite'));\n\n        it('should initialize to model', function() {\n          expect(favorite.getText()).toContain('unicorns');\n        });\n        it('should bind the values to the inputs', function() {\n          element.all(by.model('my.favorite')).get(0).click();\n          expect(favorite.getText()).toContain('pizza');\n        });\n      </file>\n    </example>\n */\nvar ngValueDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    compile: function(tpl, tplAttr) {\n      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {\n        return function ngValueConstantLink(scope, elm, attr) {\n          attr.$set('value', scope.$eval(attr.ngValue));\n        };\n      } else {\n        return function ngValueLink(scope, elm, attr) {\n          scope.$watch(attr.ngValue, function valueWatchAction(value) {\n            attr.$set('value', value);\n          });\n        };\n      }\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngBind\n * @restrict AC\n *\n * @description\n * The `ngBind` attribute tells Angular to replace the text content of the specified HTML element\n * with the value of a given expression, and to update the text content when the value of that\n * expression changes.\n *\n * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like\n * `{{ expression }}` which is similar but less verbose.\n *\n * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily\n * displayed by the browser in its raw state before Angular compiles it. Since `ngBind` is an\n * element attribute, it makes the bindings invisible to the user while the page is loading.\n *\n * An alternative solution to this problem would be using the\n * {@link ng.directive:ngCloak ngCloak} directive.\n *\n *\n * @element ANY\n * @param {expression} ngBind {@link guide/expression Expression} to evaluate.\n *\n * @example\n * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.\n   <example module=\"bindExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.name = 'Whirled';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         Enter name: <input type=\"text\" ng-model=\"name\"><br>\n         Hello <span ng-bind=\"name\"></span>!\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var nameInput = element(by.model('name'));\n\n         expect(element(by.binding('name')).getText()).toBe('Whirled');\n         nameInput.clear();\n         nameInput.sendKeys('world');\n         expect(element(by.binding('name')).getText()).toBe('world');\n       });\n     </file>\n   </example>\n */\nvar ngBindDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'AC',\n    compile: function ngBindCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBind);\n        element = element[0];\n        scope.$watch(attr.ngBind, function ngBindWatchAction(value) {\n          element.textContent = value === undefined ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindTemplate\n *\n * @description\n * The `ngBindTemplate` directive specifies that the element\n * text content should be replaced with the interpolation of the template\n * in the `ngBindTemplate` attribute.\n * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`\n * expressions. This directive is needed since some HTML elements\n * (such as TITLE and OPTION) cannot contain SPAN elements.\n *\n * @element ANY\n * @param {string} ngBindTemplate template of form\n *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.\n *\n * @example\n * Try it here: enter text in text box and watch the greeting change.\n   <example module=\"bindExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.salutation = 'Hello';\n             $scope.name = 'World';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n        Salutation: <input type=\"text\" ng-model=\"salutation\"><br>\n        Name: <input type=\"text\" ng-model=\"name\"><br>\n        <pre ng-bind-template=\"{{salutation}} {{name}}!\"></pre>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var salutationElem = element(by.binding('salutation'));\n         var salutationInput = element(by.model('salutation'));\n         var nameInput = element(by.model('name'));\n\n         expect(salutationElem.getText()).toBe('Hello World!');\n\n         salutationInput.clear();\n         salutationInput.sendKeys('Greetings');\n         nameInput.clear();\n         nameInput.sendKeys('user');\n\n         expect(salutationElem.getText()).toBe('Greetings user!');\n       });\n     </file>\n   </example>\n */\nvar ngBindTemplateDirective = ['$interpolate', '$compile', function($interpolate, $compile) {\n  return {\n    compile: function ngBindTemplateCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindTemplateLink(scope, element, attr) {\n        var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));\n        $compile.$$addBindingInfo(element, interpolateFn.expressions);\n        element = element[0];\n        attr.$observe('ngBindTemplate', function(value) {\n          element.textContent = value === undefined ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindHtml\n *\n * @description\n * Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default,\n * the resulting HTML content will be sanitized using the {@link ngSanitize.$sanitize $sanitize} service.\n * To utilize this functionality, ensure that `$sanitize` is available, for example, by including {@link\n * ngSanitize} in your module's dependencies (not in core Angular). In order to use {@link ngSanitize}\n * in your module's dependencies, you need to include \"angular-sanitize.js\" in your application.\n *\n * You may also bypass sanitization for values you know are safe. To do so, bind to\n * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example\n * under {@link ng.$sce#show-me-an-example-using-sce- Strict Contextual Escaping (SCE)}.\n *\n * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you\n * will have an exception (instead of an exploit.)\n *\n * @element ANY\n * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.\n *\n * @example\n\n   <example module=\"bindHtmlExample\" deps=\"angular-sanitize.js\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n        <p ng-bind-html=\"myHTML\"></p>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n       angular.module('bindHtmlExample', ['ngSanitize'])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.myHTML =\n              'I am an <code>HTML</code>string with ' +\n              '<a href=\"#\">links!</a> and other <em>stuff</em>';\n         }]);\n     </file>\n\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind-html', function() {\n         expect(element(by.binding('myHTML')).getText()).toBe(\n             'I am an HTMLstring with links! and other stuff');\n       });\n     </file>\n   </example>\n */\nvar ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {\n  return {\n    restrict: 'A',\n    compile: function ngBindHtmlCompile(tElement, tAttrs) {\n      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);\n      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function getStringValue(value) {\n        return (value || '').toString();\n      });\n      $compile.$$addBindingClass(tElement);\n\n      return function ngBindHtmlLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBindHtml);\n\n        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {\n          // we re-evaluate the expr because we want a TrustedValueHolderType\n          // for $sce, not a string\n          element.html($sce.getTrustedHtml(ngBindHtmlGetter(scope)) || '');\n        });\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngChange\n *\n * @description\n * Evaluate the given expression when the user changes the input.\n * The expression is evaluated immediately, unlike the JavaScript onchange event\n * which only triggers at the end of a change (usually, when the user leaves the\n * form element or presses the return key).\n *\n * The `ngChange` expression is only evaluated when a change in the input value causes\n * a new value to be committed to the model.\n *\n * It will not be evaluated:\n * * if the value returned from the `$parsers` transformation pipeline has not changed\n * * if the input has continued to be invalid since the model will stay `null`\n * * if the model is changed programmatically and not by a change to the input value\n *\n *\n * Note, this directive requires `ngModel` to be present.\n *\n * @element input\n * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change\n * in input value.\n *\n * @example\n * <example name=\"ngChange-directive\" module=\"changeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('changeExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.counter = 0;\n *           $scope.change = function() {\n *             $scope.counter++;\n *           };\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input type=\"checkbox\" ng-model=\"confirmed\" ng-change=\"change()\" id=\"ng-change-example1\" />\n *       <input type=\"checkbox\" ng-model=\"confirmed\" id=\"ng-change-example2\" />\n *       <label for=\"ng-change-example2\">Confirmed</label><br />\n *       <tt>debug = {{confirmed}}</tt><br/>\n *       <tt>counter = {{counter}}</tt><br/>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var counter = element(by.binding('counter'));\n *     var debug = element(by.binding('confirmed'));\n *\n *     it('should evaluate the expression if changing from view', function() {\n *       expect(counter.getText()).toContain('0');\n *\n *       element(by.id('ng-change-example1')).click();\n *\n *       expect(counter.getText()).toContain('1');\n *       expect(debug.getText()).toContain('true');\n *     });\n *\n *     it('should not evaluate the expression if changing from model', function() {\n *       element(by.id('ng-change-example2')).click();\n\n *       expect(counter.getText()).toContain('0');\n *       expect(debug.getText()).toContain('true');\n *     });\n *   </file>\n * </example>\n */\nvar ngChangeDirective = valueFn({\n  restrict: 'A',\n  require: 'ngModel',\n  link: function(scope, element, attr, ctrl) {\n    ctrl.$viewChangeListeners.push(function() {\n      scope.$eval(attr.ngChange);\n    });\n  }\n});\n\nfunction classDirective(name, selector) {\n  name = 'ngClass' + name;\n  return ['$animate', function($animate) {\n    return {\n      restrict: 'AC',\n      link: function(scope, element, attr) {\n        var oldVal;\n\n        scope.$watch(attr[name], ngClassWatchAction, true);\n\n        attr.$observe('class', function(value) {\n          ngClassWatchAction(scope.$eval(attr[name]));\n        });\n\n\n        if (name !== 'ngClass') {\n          scope.$watch('$index', function($index, old$index) {\n            // jshint bitwise: false\n            var mod = $index & 1;\n            if (mod !== (old$index & 1)) {\n              var classes = arrayClasses(scope.$eval(attr[name]));\n              mod === selector ?\n                addClasses(classes) :\n                removeClasses(classes);\n            }\n          });\n        }\n\n        function addClasses(classes) {\n          var newClasses = digestClassCounts(classes, 1);\n          attr.$addClass(newClasses);\n        }\n\n        function removeClasses(classes) {\n          var newClasses = digestClassCounts(classes, -1);\n          attr.$removeClass(newClasses);\n        }\n\n        function digestClassCounts(classes, count) {\n          var classCounts = element.data('$classCounts') || {};\n          var classesToUpdate = [];\n          forEach(classes, function(className) {\n            if (count > 0 || classCounts[className]) {\n              classCounts[className] = (classCounts[className] || 0) + count;\n              if (classCounts[className] === +(count > 0)) {\n                classesToUpdate.push(className);\n              }\n            }\n          });\n          element.data('$classCounts', classCounts);\n          return classesToUpdate.join(' ');\n        }\n\n        function updateClasses(oldClasses, newClasses) {\n          var toAdd = arrayDifference(newClasses, oldClasses);\n          var toRemove = arrayDifference(oldClasses, newClasses);\n          toAdd = digestClassCounts(toAdd, 1);\n          toRemove = digestClassCounts(toRemove, -1);\n          if (toAdd && toAdd.length) {\n            $animate.addClass(element, toAdd);\n          }\n          if (toRemove && toRemove.length) {\n            $animate.removeClass(element, toRemove);\n          }\n        }\n\n        function ngClassWatchAction(newVal) {\n          if (selector === true || scope.$index % 2 === selector) {\n            var newClasses = arrayClasses(newVal || []);\n            if (!oldVal) {\n              addClasses(newClasses);\n            } else if (!equals(newVal,oldVal)) {\n              var oldClasses = arrayClasses(oldVal);\n              updateClasses(oldClasses, newClasses);\n            }\n          }\n          oldVal = shallowCopy(newVal);\n        }\n      }\n    };\n\n    function arrayDifference(tokens1, tokens2) {\n      var values = [];\n\n      outer:\n      for (var i = 0; i < tokens1.length; i++) {\n        var token = tokens1[i];\n        for (var j = 0; j < tokens2.length; j++) {\n          if (token == tokens2[j]) continue outer;\n        }\n        values.push(token);\n      }\n      return values;\n    }\n\n    function arrayClasses(classVal) {\n      if (isArray(classVal)) {\n        return classVal;\n      } else if (isString(classVal)) {\n        return classVal.split(' ');\n      } else if (isObject(classVal)) {\n        var classes = [];\n        forEach(classVal, function(v, k) {\n          if (v) {\n            classes = classes.concat(k.split(' '));\n          }\n        });\n        return classes;\n      }\n      return classVal;\n    }\n  }];\n}\n\n/**\n * @ngdoc directive\n * @name ngClass\n * @restrict AC\n *\n * @description\n * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding\n * an expression that represents all classes to be added.\n *\n * The directive operates in three different ways, depending on which of three types the expression\n * evaluates to:\n *\n * 1. If the expression evaluates to a string, the string should be one or more space-delimited class\n * names.\n *\n * 2. If the expression evaluates to an array, each element of the array should be a string that is\n * one or more space-delimited class names.\n *\n * 3. If the expression evaluates to an object, then for each key-value pair of the\n * object with a truthy value the corresponding key is used as a class name.\n *\n * The directive won't add duplicate classes if a particular class was already set.\n *\n * When the expression changes, the previously added classes are removed and only then the\n * new classes are added.\n *\n * @animations\n * **add** - happens just before the class is applied to the elements\n *\n * **remove** - happens just before the class is removed from the element\n *\n * @element ANY\n * @param {expression} ngClass {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class\n *   names, an array, or a map of class names to boolean values. In the case of a map, the\n *   names of the properties whose values are truthy will be added as css classes to the\n *   element.\n *\n * @example Example that demonstrates basic bindings via ngClass directive.\n   <example>\n     <file name=\"index.html\">\n       <p ng-class=\"{strike: deleted, bold: important, red: error}\">Map Syntax Example</p>\n       <input type=\"checkbox\" ng-model=\"deleted\"> deleted (apply \"strike\" class)<br>\n       <input type=\"checkbox\" ng-model=\"important\"> important (apply \"bold\" class)<br>\n       <input type=\"checkbox\" ng-model=\"error\"> error (apply \"red\" class)\n       <hr>\n       <p ng-class=\"style\">Using String Syntax</p>\n       <input type=\"text\" ng-model=\"style\" placeholder=\"Type: bold strike red\">\n       <hr>\n       <p ng-class=\"[style1, style2, style3]\">Using Array Syntax</p>\n       <input ng-model=\"style1\" placeholder=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style2\" placeholder=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style3\" placeholder=\"Type: bold, strike or red\"><br>\n     </file>\n     <file name=\"style.css\">\n       .strike {\n         text-decoration: line-through;\n       }\n       .bold {\n           font-weight: bold;\n       }\n       .red {\n           color: red;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var ps = element.all(by.css('p'));\n\n       it('should let you toggle the class', function() {\n\n         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);\n         expect(ps.first().getAttribute('class')).not.toMatch(/red/);\n\n         element(by.model('important')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/bold/);\n\n         element(by.model('error')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/red/);\n       });\n\n       it('should let you toggle string example', function() {\n         expect(ps.get(1).getAttribute('class')).toBe('');\n         element(by.model('style')).clear();\n         element(by.model('style')).sendKeys('red');\n         expect(ps.get(1).getAttribute('class')).toBe('red');\n       });\n\n       it('array example should have 3 classes', function() {\n         expect(ps.last().getAttribute('class')).toBe('');\n         element(by.model('style1')).sendKeys('bold');\n         element(by.model('style2')).sendKeys('strike');\n         element(by.model('style3')).sendKeys('red');\n         expect(ps.last().getAttribute('class')).toBe('bold strike red');\n       });\n     </file>\n   </example>\n\n   ## Animations\n\n   The example below demonstrates how to perform animations using ngClass.\n\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n      <input id=\"setbtn\" type=\"button\" value=\"set\" ng-click=\"myVar='my-class'\">\n      <input id=\"clearbtn\" type=\"button\" value=\"clear\" ng-click=\"myVar=''\">\n      <br>\n      <span class=\"base-class\" ng-class=\"myVar\">Sample Text</span>\n     </file>\n     <file name=\"style.css\">\n       .base-class {\n         -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n       }\n\n       .base-class.my-class {\n         color: red;\n         font-size:3em;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class', function() {\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n\n         element(by.id('setbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).\n           toMatch(/my-class/);\n\n         element(by.id('clearbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n       });\n     </file>\n   </example>\n\n\n   ## ngClass and pre-existing CSS3 Transitions/Animations\n   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.\n   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder\n   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure\n   to view the step by step details of {@link ng.$animate#addClass $animate.addClass} and\n   {@link ng.$animate#removeClass $animate.removeClass}.\n */\nvar ngClassDirective = classDirective('', true);\n\n/**\n * @ngdoc directive\n * @name ngClassOdd\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}}\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassOddDirective = classDirective('Odd', 0);\n\n/**\n * @ngdoc directive\n * @name ngClassEven\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The\n *   result of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}} &nbsp; &nbsp; &nbsp;\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassEvenDirective = classDirective('Even', 1);\n\n/**\n * @ngdoc directive\n * @name ngCloak\n * @restrict AC\n *\n * @description\n * The `ngCloak` directive is used to prevent the Angular html template from being briefly\n * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this\n * directive to avoid the undesirable flicker effect caused by the html template display.\n *\n * The directive can be applied to the `<body>` element, but the preferred usage is to apply\n * multiple `ngCloak` directives to small portions of the page to permit progressive rendering\n * of the browser view.\n *\n * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and\n * `angular.min.js`.\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```css\n * [ng\\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {\n *   display: none !important;\n * }\n * ```\n *\n * When this css rule is loaded by the browser, all html elements (including their children) that\n * are tagged with the `ngCloak` directive are hidden. When Angular encounters this directive\n * during the compilation of the template it deletes the `ngCloak` element attribute, making\n * the compiled element visible.\n *\n * For the best result, the `angular.js` script must be loaded in the head section of the html\n * document; alternatively, the css rule above must be included in the external stylesheet of the\n * application.\n *\n * @element ANY\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <div id=\"template1\" ng-cloak>{{ 'hello' }}</div>\n        <div id=\"template2\" class=\"ng-cloak\">{{ 'world' }}</div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should remove the template directive and css class', function() {\n         expect($('#template1').getAttribute('ng-cloak')).\n           toBeNull();\n         expect($('#template2').getAttribute('ng-cloak')).\n           toBeNull();\n       });\n     </file>\n   </example>\n *\n */\nvar ngCloakDirective = ngDirective({\n  compile: function(element, attr) {\n    attr.$set('ngCloak', undefined);\n    element.removeClass('ng-cloak');\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngController\n *\n * @description\n * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular\n * supports the principles behind the Model-View-Controller design pattern.\n *\n * MVC components in angular:\n *\n * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties\n *   are accessed through bindings.\n * * View — The template (HTML with data bindings) that is rendered into the View.\n * * Controller — The `ngController` directive specifies a Controller class; the class contains business\n *   logic behind the application to decorate the scope with functions and values\n *\n * Note that you can also attach controllers to the DOM by declaring it in a route definition\n * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller\n * again using `ng-controller` in the template itself.  This will cause the controller to be attached\n * and executed twice.\n *\n * @element ANY\n * @scope\n * @priority 500\n * @param {expression} ngController Name of a constructor function registered with the current\n * {@link ng.$controllerProvider $controllerProvider} or an {@link guide/expression expression}\n * that on the current scope evaluates to a constructor function.\n *\n * The controller instance can be published into a scope property by specifying\n * `ng-controller=\"as propertyName\"`.\n *\n * If the current `$controllerProvider` is configured to use globals (via\n * {@link ng.$controllerProvider#allowGlobals `$controllerProvider.allowGlobals()` }), this may\n * also be the name of a globally accessible constructor function (not recommended).\n *\n * @example\n * Here is a simple form for editing user contact information. Adding, removing, clearing, and\n * greeting are methods declared on the controller (see source tab). These methods can\n * easily be called from the angular markup. Any changes to the data are automatically reflected\n * in the View without the need for a manual update.\n *\n * Two different declaration styles are included below:\n *\n * * one binds methods and properties directly onto the controller using `this`:\n * `ng-controller=\"SettingsController1 as settings\"`\n * * one injects `$scope` into the controller:\n * `ng-controller=\"SettingsController2\"`\n *\n * The second option is more common in the Angular community, and is generally used in boilerplates\n * and in this guide. However, there are advantages to binding properties directly to the controller\n * and avoiding scope.\n *\n * * Using `controller as` makes it obvious which controller you are accessing in the template when\n * multiple controllers apply to an element.\n * * If you are writing your controllers as classes you have easier access to the properties and\n * methods, which will appear on the scope, from inside the controller code.\n * * Since there is always a `.` in the bindings, you don't have to worry about prototypal\n * inheritance masking primitives.\n *\n * This example demonstrates the `controller as` syntax.\n *\n * <example name=\"ngControllerAs\" module=\"controllerAsExample\">\n *   <file name=\"index.html\">\n *    <div id=\"ctrl-as-exmpl\" ng-controller=\"SettingsController1 as settings\">\n *      Name: <input type=\"text\" ng-model=\"settings.name\"/>\n *      [ <a href=\"\" ng-click=\"settings.greet()\">greet</a> ]<br/>\n *      Contact:\n *      <ul>\n *        <li ng-repeat=\"contact in settings.contacts\">\n *          <select ng-model=\"contact.type\">\n *             <option>phone</option>\n *             <option>email</option>\n *          </select>\n *          <input type=\"text\" ng-model=\"contact.value\"/>\n *          [ <a href=\"\" ng-click=\"settings.clearContact(contact)\">clear</a>\n *          | <a href=\"\" ng-click=\"settings.removeContact(contact)\">X</a> ]\n *        </li>\n *        <li>[ <a href=\"\" ng-click=\"settings.addContact()\">add</a> ]</li>\n *     </ul>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('controllerAsExample', [])\n *      .controller('SettingsController1', SettingsController1);\n *\n *    function SettingsController1() {\n *      this.name = \"John Smith\";\n *      this.contacts = [\n *        {type: 'phone', value: '408 555 1212'},\n *        {type: 'email', value: 'john.smith@example.org'} ];\n *    }\n *\n *    SettingsController1.prototype.greet = function() {\n *      alert(this.name);\n *    };\n *\n *    SettingsController1.prototype.addContact = function() {\n *      this.contacts.push({type: 'email', value: 'yourname@example.org'});\n *    };\n *\n *    SettingsController1.prototype.removeContact = function(contactToRemove) {\n *     var index = this.contacts.indexOf(contactToRemove);\n *      this.contacts.splice(index, 1);\n *    };\n *\n *    SettingsController1.prototype.clearContact = function(contact) {\n *      contact.type = 'phone';\n *      contact.value = '';\n *    };\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should check controller as', function() {\n *       var container = element(by.id('ctrl-as-exmpl'));\n *         expect(container.element(by.model('settings.name'))\n *           .getAttribute('value')).toBe('John Smith');\n *\n *       var firstRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(0));\n *       var secondRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(1));\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('408 555 1212');\n *\n *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('john.smith@example.org');\n *\n *       firstRepeat.element(by.linkText('clear')).click();\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('');\n *\n *       container.element(by.linkText('add')).click();\n *\n *       expect(container.element(by.repeater('contact in settings.contacts').row(2))\n *           .element(by.model('contact.value'))\n *           .getAttribute('value'))\n *           .toBe('yourname@example.org');\n *     });\n *   </file>\n * </example>\n *\n * This example demonstrates the \"attach to `$scope`\" style of controller.\n *\n * <example name=\"ngController\" module=\"controllerExample\">\n *  <file name=\"index.html\">\n *   <div id=\"ctrl-exmpl\" ng-controller=\"SettingsController2\">\n *     Name: <input type=\"text\" ng-model=\"name\"/>\n *     [ <a href=\"\" ng-click=\"greet()\">greet</a> ]<br/>\n *     Contact:\n *     <ul>\n *       <li ng-repeat=\"contact in contacts\">\n *         <select ng-model=\"contact.type\">\n *            <option>phone</option>\n *            <option>email</option>\n *         </select>\n *         <input type=\"text\" ng-model=\"contact.value\"/>\n *         [ <a href=\"\" ng-click=\"clearContact(contact)\">clear</a>\n *         | <a href=\"\" ng-click=\"removeContact(contact)\">X</a> ]\n *       </li>\n *       <li>[ <a href=\"\" ng-click=\"addContact()\">add</a> ]</li>\n *    </ul>\n *   </div>\n *  </file>\n *  <file name=\"app.js\">\n *   angular.module('controllerExample', [])\n *     .controller('SettingsController2', ['$scope', SettingsController2]);\n *\n *   function SettingsController2($scope) {\n *     $scope.name = \"John Smith\";\n *     $scope.contacts = [\n *       {type:'phone', value:'408 555 1212'},\n *       {type:'email', value:'john.smith@example.org'} ];\n *\n *     $scope.greet = function() {\n *       alert($scope.name);\n *     };\n *\n *     $scope.addContact = function() {\n *       $scope.contacts.push({type:'email', value:'yourname@example.org'});\n *     };\n *\n *     $scope.removeContact = function(contactToRemove) {\n *       var index = $scope.contacts.indexOf(contactToRemove);\n *       $scope.contacts.splice(index, 1);\n *     };\n *\n *     $scope.clearContact = function(contact) {\n *       contact.type = 'phone';\n *       contact.value = '';\n *     };\n *   }\n *  </file>\n *  <file name=\"protractor.js\" type=\"protractor\">\n *    it('should check controller', function() {\n *      var container = element(by.id('ctrl-exmpl'));\n *\n *      expect(container.element(by.model('name'))\n *          .getAttribute('value')).toBe('John Smith');\n *\n *      var firstRepeat =\n *          container.element(by.repeater('contact in contacts').row(0));\n *      var secondRepeat =\n *          container.element(by.repeater('contact in contacts').row(1));\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('408 555 1212');\n *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('john.smith@example.org');\n *\n *      firstRepeat.element(by.linkText('clear')).click();\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('');\n *\n *      container.element(by.linkText('add')).click();\n *\n *      expect(container.element(by.repeater('contact in contacts').row(2))\n *          .element(by.model('contact.value'))\n *          .getAttribute('value'))\n *          .toBe('yourname@example.org');\n *    });\n *  </file>\n *</example>\n\n */\nvar ngControllerDirective = [function() {\n  return {\n    restrict: 'A',\n    scope: true,\n    controller: '@',\n    priority: 500\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngCsp\n *\n * @element html\n * @description\n * Enables [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) support.\n *\n * This is necessary when developing things like Google Chrome Extensions or Universal Windows Apps.\n *\n * CSP forbids apps to use `eval` or `Function(string)` generated functions (among other things).\n * For Angular to be CSP compatible there are only two things that we need to do differently:\n *\n * - don't use `Function` constructor to generate optimized value getters\n * - don't inject custom stylesheet into the document\n *\n * AngularJS uses `Function(string)` generated functions as a speed optimization. Applying the `ngCsp`\n * directive will cause Angular to use CSP compatibility mode. When this mode is on AngularJS will\n * evaluate all expressions up to 30% slower than in non-CSP mode, but no security violations will\n * be raised.\n *\n * CSP forbids JavaScript to inline stylesheet rules. In non CSP mode Angular automatically\n * includes some CSS rules (e.g. {@link ng.directive:ngCloak ngCloak}).\n * To make those directives work in CSP mode, include the `angular-csp.css` manually.\n *\n * Angular tries to autodetect if CSP is active and automatically turn on the CSP-safe mode. This\n * autodetection however triggers a CSP error to be logged in the console:\n *\n * ```\n * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of\n * script in the following Content Security Policy directive: \"default-src 'self'\". Note that\n * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.\n * ```\n *\n * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`\n * directive on the root element of the application or on the `angular.js` script tag, whichever\n * appears first in the html document.\n *\n * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*\n *\n * @example\n * This example shows how to apply the `ngCsp` directive to the `html` tag.\n   ```html\n     <!doctype html>\n     <html ng-app ng-csp>\n     ...\n     ...\n     </html>\n   ```\n  * @example\n      // Note: the suffix `.csp` in the example name triggers\n      // csp mode in our http server!\n      <example name=\"example.csp\" module=\"cspExample\" ng-csp=\"true\">\n        <file name=\"index.html\">\n          <div ng-controller=\"MainController as ctrl\">\n            <div>\n              <button ng-click=\"ctrl.inc()\" id=\"inc\">Increment</button>\n              <span id=\"counter\">\n                {{ctrl.counter}}\n              </span>\n            </div>\n\n            <div>\n              <button ng-click=\"ctrl.evil()\" id=\"evil\">Evil</button>\n              <span id=\"evilError\">\n                {{ctrl.evilError}}\n              </span>\n            </div>\n          </div>\n        </file>\n        <file name=\"script.js\">\n           angular.module('cspExample', [])\n             .controller('MainController', function() {\n                this.counter = 0;\n                this.inc = function() {\n                  this.counter++;\n                };\n                this.evil = function() {\n                  // jshint evil:true\n                  try {\n                    eval('1+2');\n                  } catch (e) {\n                    this.evilError = e.message;\n                  }\n                };\n              });\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var util, webdriver;\n\n          var incBtn = element(by.id('inc'));\n          var counter = element(by.id('counter'));\n          var evilBtn = element(by.id('evil'));\n          var evilError = element(by.id('evilError'));\n\n          function getAndClearSevereErrors() {\n            return browser.manage().logs().get('browser').then(function(browserLog) {\n              return browserLog.filter(function(logEntry) {\n                return logEntry.level.value > webdriver.logging.Level.WARNING.value;\n              });\n            });\n          }\n\n          function clearErrors() {\n            getAndClearSevereErrors();\n          }\n\n          function expectNoErrors() {\n            getAndClearSevereErrors().then(function(filteredLog) {\n              expect(filteredLog.length).toEqual(0);\n              if (filteredLog.length) {\n                console.log('browser console errors: ' + util.inspect(filteredLog));\n              }\n            });\n          }\n\n          function expectError(regex) {\n            getAndClearSevereErrors().then(function(filteredLog) {\n              var found = false;\n              filteredLog.forEach(function(log) {\n                if (log.message.match(regex)) {\n                  found = true;\n                }\n              });\n              if (!found) {\n                throw new Error('expected an error that matches ' + regex);\n              }\n            });\n          }\n\n          beforeEach(function() {\n            util = require('util');\n            webdriver = require('protractor/node_modules/selenium-webdriver');\n          });\n\n          // For now, we only test on Chrome,\n          // as Safari does not load the page with Protractor's injected scripts,\n          // and Firefox webdriver always disables content security policy (#6358)\n          if (browser.params.browser !== 'chrome') {\n            return;\n          }\n\n          it('should not report errors when the page is loaded', function() {\n            // clear errors so we are not dependent on previous tests\n            clearErrors();\n            // Need to reload the page as the page is already loaded when\n            // we come here\n            browser.driver.getCurrentUrl().then(function(url) {\n              browser.get(url);\n            });\n            expectNoErrors();\n          });\n\n          it('should evaluate expressions', function() {\n            expect(counter.getText()).toEqual('0');\n            incBtn.click();\n            expect(counter.getText()).toEqual('1');\n            expectNoErrors();\n          });\n\n          it('should throw and report an error when using \"eval\"', function() {\n            evilBtn.click();\n            expect(evilError.getText()).toMatch(/Content Security Policy/);\n            expectError(/Content Security Policy/);\n          });\n        </file>\n      </example>\n  */\n\n// ngCsp is not implemented as a proper directive any more, because we need it be processed while we\n// bootstrap the system (before $parse is instantiated), for this reason we just have\n// the csp.isActive() fn that looks for ng-csp attribute anywhere in the current doc\n\n/**\n * @ngdoc directive\n * @name ngClick\n *\n * @description\n * The ngClick directive allows you to specify custom behavior when\n * an element is clicked.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon\n * click. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-click=\"count = count + 1\" ng-init=\"count=0\">\n        Increment\n      </button>\n      <span>\n        count: {{count}}\n      </span>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-click', function() {\n         expect(element(by.binding('count')).getText()).toMatch('0');\n         element(by.css('button')).click();\n         expect(element(by.binding('count')).getText()).toMatch('1');\n       });\n     </file>\n   </example>\n */\n/*\n * A collection of directives that allows creation of custom event handlers that are defined as\n * angular expressions and are compiled and executed within the current scope.\n */\nvar ngEventDirectives = {};\n\n// For events that might fire synchronously during DOM manipulation\n// we need to execute their event handlers asynchronously using $evalAsync,\n// so that they are not executed in an inconsistent state.\nvar forceAsyncEvents = {\n  'blur': true,\n  'focus': true\n};\nforEach(\n  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),\n  function(eventName) {\n    var directiveName = directiveNormalize('ng-' + eventName);\n    ngEventDirectives[directiveName] = ['$parse', '$rootScope', function($parse, $rootScope) {\n      return {\n        restrict: 'A',\n        compile: function($element, attr) {\n          // We expose the powerful $event object on the scope that provides access to the Window,\n          // etc. that isn't protected by the fast paths in $parse.  We explicitly request better\n          // checks at the cost of speed since event handler expressions are not executed as\n          // frequently as regular change detection.\n          var fn = $parse(attr[directiveName], /* interceptorFn */ null, /* expensiveChecks */ true);\n          return function ngEventHandler(scope, element) {\n            element.on(eventName, function(event) {\n              var callback = function() {\n                fn(scope, {$event:event});\n              };\n              if (forceAsyncEvents[eventName] && $rootScope.$$phase) {\n                scope.$evalAsync(callback);\n              } else {\n                scope.$apply(callback);\n              }\n            });\n          };\n        }\n      };\n    }];\n  }\n);\n\n/**\n * @ngdoc directive\n * @name ngDblclick\n *\n * @description\n * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon\n * a dblclick. (The Event object is available as `$event`)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-dblclick=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on double click)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousedown\n *\n * @description\n * The ngMousedown directive allows you to specify custom behavior on mousedown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon\n * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mousedown=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse down)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseup\n *\n * @description\n * Specify custom behavior on mouseup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon\n * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseup=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse up)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngMouseover\n *\n * @description\n * Specify custom behavior on mouseover event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon\n * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseover=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse is over)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseenter\n *\n * @description\n * Specify custom behavior on mouseenter event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon\n * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseenter=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse enters)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseleave\n *\n * @description\n * Specify custom behavior on mouseleave event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon\n * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseleave=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse leaves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousemove\n *\n * @description\n * Specify custom behavior on mousemove event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon\n * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mousemove=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse moves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeydown\n *\n * @description\n * Specify custom behavior on keydown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon\n * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-keydown=\"count = count + 1\" ng-init=\"count=0\">\n      key down count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeyup\n *\n * @description\n * Specify custom behavior on keyup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon\n * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <p>Typing in the input box below updates the key count</p>\n       <input ng-keyup=\"count = count + 1\" ng-init=\"count=0\"> key up count: {{count}}\n\n       <p>Typing in the input box below updates the keycode</p>\n       <input ng-keyup=\"event=$event\">\n       <p>event keyCode: {{ event.keyCode }}</p>\n       <p>event altKey: {{ event.altKey }}</p>\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeypress\n *\n * @description\n * Specify custom behavior on keypress event.\n *\n * @element ANY\n * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon\n * keypress. ({@link guide/expression#-event- Event object is available as `$event`}\n * and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-keypress=\"count = count + 1\" ng-init=\"count=0\">\n      key press count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSubmit\n *\n * @description\n * Enables binding angular expressions to onsubmit events.\n *\n * Additionally it prevents the default action (which for form means sending the request to the\n * server and reloading the current page), but only if the form does not contain `action`,\n * `data-action`, or `x-action` attributes.\n *\n * <div class=\"alert alert-warning\">\n * **Warning:** Be careful not to cause \"double-submission\" by using both the `ngClick` and\n * `ngSubmit` handlers together. See the\n * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}\n * for a detailed discussion of when `ngSubmit` may be triggered.\n * </div>\n *\n * @element form\n * @priority 0\n * @param {expression} ngSubmit {@link guide/expression Expression} to eval.\n * ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example module=\"submitExample\">\n     <file name=\"index.html\">\n      <script>\n        angular.module('submitExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.list = [];\n            $scope.text = 'hello';\n            $scope.submit = function() {\n              if ($scope.text) {\n                $scope.list.push(this.text);\n                $scope.text = '';\n              }\n            };\n          }]);\n      </script>\n      <form ng-submit=\"submit()\" ng-controller=\"ExampleController\">\n        Enter text and hit enter:\n        <input type=\"text\" ng-model=\"text\" name=\"text\" />\n        <input type=\"submit\" id=\"submit\" value=\"Submit\" />\n        <pre>list={{list}}</pre>\n      </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-submit', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n         expect(element(by.model('text')).getAttribute('value')).toBe('');\n       });\n       it('should ignore empty strings', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n        });\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngFocus\n *\n * @description\n * Specify custom behavior on focus event.\n *\n * Note: As the `focus` event is executed synchronously when calling `input.focus()`\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon\n * focus. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngBlur\n *\n * @description\n * Specify custom behavior on blur event.\n *\n * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when\n * an element has lost focus.\n *\n * Note: As the `blur` event is executed synchronously also during DOM manipulations\n * (e.g. removing a focussed input),\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon\n * blur. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngCopy\n *\n * @description\n * Specify custom behavior on copy event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon\n * copy. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-copy=\"copied=true\" ng-init=\"copied=false; value='copy me'\" ng-model=\"value\">\n      copied: {{copied}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngCut\n *\n * @description\n * Specify custom behavior on cut event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon\n * cut. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-cut=\"cut=true\" ng-init=\"cut=false; value='cut me'\" ng-model=\"value\">\n      cut: {{cut}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngPaste\n *\n * @description\n * Specify custom behavior on paste event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon\n * paste. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-paste=\"paste=true\" ng-init=\"paste=false\" placeholder='paste here'>\n      pasted: {{paste}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngIf\n * @restrict A\n *\n * @description\n * The `ngIf` directive removes or recreates a portion of the DOM tree based on an\n * {expression}. If the expression assigned to `ngIf` evaluates to a false\n * value then the element is removed from the DOM, otherwise a clone of the\n * element is reinserted into the DOM.\n *\n * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the\n * element in the DOM rather than changing its visibility via the `display` css property.  A common\n * case when this difference is significant is when using css selectors that rely on an element's\n * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.\n *\n * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope\n * is created when the element is restored.  The scope created within `ngIf` inherits from\n * its parent scope using\n * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).\n * An important implication of this is if `ngModel` is used within `ngIf` to bind to\n * a javascript primitive defined in the parent scope. In this case any modifications made to the\n * variable within the child scope will override (hide) the value in the parent scope.\n *\n * Also, `ngIf` recreates elements using their compiled state. An example of this behavior\n * is if an element's class attribute is directly modified after it's compiled, using something like\n * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element\n * the added class will be lost because the original compiled state is used to regenerate the element.\n *\n * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`\n * and `leave` effects.\n *\n * @animations\n * enter - happens just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container\n * leave - happens just before the `ngIf` contents are removed from the DOM\n *\n * @element ANY\n * @scope\n * @priority 600\n * @param {expression} ngIf If the {@link guide/expression expression} is falsy then\n *     the element is removed from the DOM tree. If it is truthy a copy of the compiled\n *     element is added to the DOM tree.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\" ng-init=\"checked=true\" /><br/>\n      Show when checked:\n      <span ng-if=\"checked\" class=\"animate-if\">\n        This is removed when the checkbox is unchecked.\n      </span>\n    </file>\n    <file name=\"animations.css\">\n      .animate-if {\n        background:white;\n        border:1px solid black;\n        padding:10px;\n      }\n\n      .animate-if.ng-enter, .animate-if.ng-leave {\n        -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n      }\n\n      .animate-if.ng-enter,\n      .animate-if.ng-leave.ng-leave-active {\n        opacity:0;\n      }\n\n      .animate-if.ng-leave,\n      .animate-if.ng-enter.ng-enter-active {\n        opacity:1;\n      }\n    </file>\n  </example>\n */\nvar ngIfDirective = ['$animate', function($animate) {\n  return {\n    multiElement: true,\n    transclude: 'element',\n    priority: 600,\n    terminal: true,\n    restrict: 'A',\n    $$tlb: true,\n    link: function($scope, $element, $attr, ctrl, $transclude) {\n        var block, childScope, previousElements;\n        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {\n\n          if (value) {\n            if (!childScope) {\n              $transclude(function(clone, newScope) {\n                childScope = newScope;\n                clone[clone.length++] = document.createComment(' end ngIf: ' + $attr.ngIf + ' ');\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block = {\n                  clone: clone\n                };\n                $animate.enter(clone, $element.parent(), $element);\n              });\n            }\n          } else {\n            if (previousElements) {\n              previousElements.remove();\n              previousElements = null;\n            }\n            if (childScope) {\n              childScope.$destroy();\n              childScope = null;\n            }\n            if (block) {\n              previousElements = getBlockNodes(block.clone);\n              $animate.leave(previousElements).then(function() {\n                previousElements = null;\n              });\n              block = null;\n            }\n          }\n        });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngInclude\n * @restrict ECA\n *\n * @description\n * Fetches, compiles and includes an external HTML fragment.\n *\n * By default, the template URL is restricted to the same domain and protocol as the\n * application document. This is done by calling {@link $sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols\n * you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or\n * {@link $sce#trustAsResourceUrl wrap them} as trusted values. Refer to Angular's {@link\n * ng.$sce Strict Contextual Escaping}.\n *\n * In addition, the browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy may further restrict whether the template is successfully loaded.\n * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`\n * access on some browsers.\n *\n * @animations\n * enter - animation is used to bring new content into the browser.\n * leave - animation is used to animate existing content away.\n *\n * The enter and leave animation occur concurrently.\n *\n * @scope\n * @priority 400\n *\n * @param {string} ngInclude|src angular expression evaluating to URL. If the source is a string constant,\n *                 make sure you wrap it in **single** quotes, e.g. `src=\"'myPartialTemplate.html'\"`.\n * @param {string=} onload Expression to evaluate when a new partial is loaded.\n *\n * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the content is loaded.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.\n *\n * @example\n  <example module=\"includeExample\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n     <div ng-controller=\"ExampleController\">\n       <select ng-model=\"template\" ng-options=\"t.name for t in templates\">\n        <option value=\"\">(blank)</option>\n       </select>\n       url of the template: <code>{{template.url}}</code>\n       <hr/>\n       <div class=\"slide-animate-container\">\n         <div class=\"slide-animate\" ng-include=\"template.url\"></div>\n       </div>\n     </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('includeExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.templates =\n            [ { name: 'template1.html', url: 'template1.html'},\n              { name: 'template2.html', url: 'template2.html'} ];\n          $scope.template = $scope.templates[0];\n        }]);\n     </file>\n    <file name=\"template1.html\">\n      Content of template1.html\n    </file>\n    <file name=\"template2.html\">\n      Content of template2.html\n    </file>\n    <file name=\"animations.css\">\n      .slide-animate-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .slide-animate {\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter, .slide-animate.ng-leave {\n        -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n        display:block;\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter {\n        top:-50px;\n      }\n      .slide-animate.ng-enter.ng-enter-active {\n        top:0;\n      }\n\n      .slide-animate.ng-leave {\n        top:0;\n      }\n      .slide-animate.ng-leave.ng-leave-active {\n        top:50px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var templateSelect = element(by.model('template'));\n      var includeElem = element(by.css('[ng-include]'));\n\n      it('should load template1.html', function() {\n        expect(includeElem.getText()).toMatch(/Content of template1.html/);\n      });\n\n      it('should load template2.html', function() {\n        if (browser.params.browser == 'firefox') {\n          // Firefox can't handle using selects\n          // See https://github.com/angular/protractor/issues/480\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(2).click();\n        expect(includeElem.getText()).toMatch(/Content of template2.html/);\n      });\n\n      it('should change to blank', function() {\n        if (browser.params.browser == 'firefox') {\n          // Firefox can't handle using selects\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(0).click();\n        expect(includeElem.isPresent()).toBe(false);\n      });\n    </file>\n  </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentRequested\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted every time the ngInclude content is requested.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentLoaded\n * @eventType emit on the current ngInclude scope\n * @description\n * Emitted every time the ngInclude content is reloaded.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentError\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted when a template HTTP request yields an erroneous response (status < 200 || status > 299)\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\nvar ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',\n                  function($templateRequest,   $anchorScroll,   $animate) {\n  return {\n    restrict: 'ECA',\n    priority: 400,\n    terminal: true,\n    transclude: 'element',\n    controller: angular.noop,\n    compile: function(element, attr) {\n      var srcExp = attr.ngInclude || attr.src,\n          onloadExp = attr.onload || '',\n          autoScrollExp = attr.autoscroll;\n\n      return function(scope, $element, $attr, ctrl, $transclude) {\n        var changeCounter = 0,\n            currentScope,\n            previousElement,\n            currentElement;\n\n        var cleanupLastIncludeContent = function() {\n          if (previousElement) {\n            previousElement.remove();\n            previousElement = null;\n          }\n          if (currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if (currentElement) {\n            $animate.leave(currentElement).then(function() {\n              previousElement = null;\n            });\n            previousElement = currentElement;\n            currentElement = null;\n          }\n        };\n\n        scope.$watch(srcExp, function ngIncludeWatchAction(src) {\n          var afterAnimation = function() {\n            if (isDefined(autoScrollExp) && (!autoScrollExp || scope.$eval(autoScrollExp))) {\n              $anchorScroll();\n            }\n          };\n          var thisChangeId = ++changeCounter;\n\n          if (src) {\n            //set the 2nd param to true to ignore the template request error so that the inner\n            //contents and scope can be cleaned up.\n            $templateRequest(src, true).then(function(response) {\n              if (thisChangeId !== changeCounter) return;\n              var newScope = scope.$new();\n              ctrl.template = response;\n\n              // Note: This will also link all children of ng-include that were contained in the original\n              // html. If that content contains controllers, ... they could pollute/change the scope.\n              // However, using ng-include on an element with additional content does not make sense...\n              // Note: We can't remove them in the cloneAttchFn of $transclude as that\n              // function is called before linking the content, which would apply child\n              // directives to non existing elements.\n              var clone = $transclude(newScope, function(clone) {\n                cleanupLastIncludeContent();\n                $animate.enter(clone, null, $element).then(afterAnimation);\n              });\n\n              currentScope = newScope;\n              currentElement = clone;\n\n              currentScope.$emit('$includeContentLoaded', src);\n              scope.$eval(onloadExp);\n            }, function() {\n              if (thisChangeId === changeCounter) {\n                cleanupLastIncludeContent();\n                scope.$emit('$includeContentError', src);\n              }\n            });\n            scope.$emit('$includeContentRequested', src);\n          } else {\n            cleanupLastIncludeContent();\n            ctrl.template = null;\n          }\n        });\n      };\n    }\n  };\n}];\n\n// This directive is called during the $transclude call of the first `ngInclude` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngInclude\n// is called.\nvar ngIncludeFillContentDirective = ['$compile',\n  function($compile) {\n    return {\n      restrict: 'ECA',\n      priority: -400,\n      require: 'ngInclude',\n      link: function(scope, $element, $attr, ctrl) {\n        if (/SVG/.test($element[0].toString())) {\n          // WebKit: https://bugs.webkit.org/show_bug.cgi?id=135698 --- SVG elements do not\n          // support innerHTML, so detect this here and try to generate the contents\n          // specially.\n          $element.empty();\n          $compile(jqLiteBuildFragment(ctrl.template, document).childNodes)(scope,\n              function namespaceAdaptedClone(clone) {\n            $element.append(clone);\n          }, {futureParentElement: $element});\n          return;\n        }\n\n        $element.html(ctrl.template);\n        $compile($element.contents())(scope);\n      }\n    };\n  }];\n\n/**\n * @ngdoc directive\n * @name ngInit\n * @restrict AC\n *\n * @description\n * The `ngInit` directive allows you to evaluate an expression in the\n * current scope.\n *\n * <div class=\"alert alert-error\">\n * The only appropriate use of `ngInit` is for aliasing special properties of\n * {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below. Besides this case, you\n * should use {@link guide/controller controllers} rather than `ngInit`\n * to initialize values on a scope.\n * </div>\n * <div class=\"alert alert-warning\">\n * **Note**: If you have assignment in `ngInit` along with {@link ng.$filter `$filter`}, make\n * sure you have parenthesis for correct precedence:\n * <pre class=\"prettyprint\">\n * `<div ng-init=\"test1 = (data | orderBy:'name')\"></div>`\n * </pre>\n * </div>\n *\n * @priority 450\n *\n * @element ANY\n * @param {expression} ngInit {@link guide/expression Expression} to eval.\n *\n * @example\n   <example module=\"initExample\">\n     <file name=\"index.html\">\n   <script>\n     angular.module('initExample', [])\n       .controller('ExampleController', ['$scope', function($scope) {\n         $scope.list = [['a', 'b'], ['c', 'd']];\n       }]);\n   </script>\n   <div ng-controller=\"ExampleController\">\n     <div ng-repeat=\"innerList in list\" ng-init=\"outerIndex = $index\">\n       <div ng-repeat=\"value in innerList\" ng-init=\"innerIndex = $index\">\n          <span class=\"example-init\">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>\n       </div>\n     </div>\n   </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should alias index positions', function() {\n         var elements = element.all(by.css('.example-init'));\n         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');\n         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');\n         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');\n         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');\n       });\n     </file>\n   </example>\n */\nvar ngInitDirective = ngDirective({\n  priority: 450,\n  compile: function() {\n    return {\n      pre: function(scope, element, attrs) {\n        scope.$eval(attrs.ngInit);\n      }\n    };\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngList\n *\n * @description\n * Text input that converts between a delimited string and an array of strings. The default\n * delimiter is a comma followed by a space - equivalent to `ng-list=\", \"`. You can specify a custom\n * delimiter as the value of the `ngList` attribute - for example, `ng-list=\" | \"`.\n *\n * The behaviour of the directive is affected by the use of the `ngTrim` attribute.\n * * If `ngTrim` is set to `\"false\"` then whitespace around both the separator and each\n *   list item is respected. This implies that the user of the directive is responsible for\n *   dealing with whitespace but also allows you to use whitespace as a delimiter, such as a\n *   tab or newline character.\n * * Otherwise whitespace around the delimiter is ignored when splitting (although it is respected\n *   when joining the list items back together) and whitespace around each list item is stripped\n *   before it is added to the model.\n *\n * ### Example with Validation\n *\n * <example name=\"ngList-directive\" module=\"listExample\">\n *   <file name=\"app.js\">\n *      angular.module('listExample', [])\n *        .controller('ExampleController', ['$scope', function($scope) {\n *          $scope.names = ['morpheus', 'neo', 'trinity'];\n *        }]);\n *   </file>\n *   <file name=\"index.html\">\n *    <form name=\"myForm\" ng-controller=\"ExampleController\">\n *      List: <input name=\"namesInput\" ng-model=\"names\" ng-list required>\n *      <span class=\"error\" ng-show=\"myForm.namesInput.$error.required\">\n *        Required!</span>\n *      <br>\n *      <tt>names = {{names}}</tt><br/>\n *      <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>\n *      <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>\n *      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n *      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n *     </form>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var listInput = element(by.model('names'));\n *     var names = element(by.exactBinding('names'));\n *     var valid = element(by.binding('myForm.namesInput.$valid'));\n *     var error = element(by.css('span.error'));\n *\n *     it('should initialize to model', function() {\n *       expect(names.getText()).toContain('[\"morpheus\",\"neo\",\"trinity\"]');\n *       expect(valid.getText()).toContain('true');\n *       expect(error.getCssValue('display')).toBe('none');\n *     });\n *\n *     it('should be invalid if empty', function() {\n *       listInput.clear();\n *       listInput.sendKeys('');\n *\n *       expect(names.getText()).toContain('');\n *       expect(valid.getText()).toContain('false');\n *       expect(error.getCssValue('display')).not.toBe('none');\n *     });\n *   </file>\n * </example>\n *\n * ### Example - splitting on whitespace\n * <example name=\"ngList-directive-newlines\">\n *   <file name=\"index.html\">\n *    <textarea ng-model=\"list\" ng-list=\"&#10;\" ng-trim=\"false\"></textarea>\n *    <pre>{{ list | json }}</pre>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it(\"should split the text by newlines\", function() {\n *       var listInput = element(by.model('list'));\n *       var output = element(by.binding('list | json'));\n *       listInput.sendKeys('abc\\ndef\\nghi');\n *       expect(output.getText()).toContain('[\\n  \"abc\",\\n  \"def\",\\n  \"ghi\"\\n]');\n *     });\n *   </file>\n * </example>\n *\n * @element input\n * @param {string=} ngList optional delimiter that should be used to split the value.\n */\nvar ngListDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    require: 'ngModel',\n    link: function(scope, element, attr, ctrl) {\n      // We want to control whitespace trimming so we use this convoluted approach\n      // to access the ngList attribute, which doesn't pre-trim the attribute\n      var ngList = element.attr(attr.$attr.ngList) || ', ';\n      var trimValues = attr.ngTrim !== 'false';\n      var separator = trimValues ? trim(ngList) : ngList;\n\n      var parse = function(viewValue) {\n        // If the viewValue is invalid (say required but empty) it will be `undefined`\n        if (isUndefined(viewValue)) return;\n\n        var list = [];\n\n        if (viewValue) {\n          forEach(viewValue.split(separator), function(value) {\n            if (value) list.push(trimValues ? trim(value) : value);\n          });\n        }\n\n        return list;\n      };\n\n      ctrl.$parsers.push(parse);\n      ctrl.$formatters.push(function(value) {\n        if (isArray(value)) {\n          return value.join(ngList);\n        }\n\n        return undefined;\n      });\n\n      // Override the standard $isEmpty because an empty array means the input is empty.\n      ctrl.$isEmpty = function(value) {\n        return !value || !value.length;\n      };\n    }\n  };\n};\n\n/* global VALID_CLASS: true,\n  INVALID_CLASS: true,\n  PRISTINE_CLASS: true,\n  DIRTY_CLASS: true,\n  UNTOUCHED_CLASS: true,\n  TOUCHED_CLASS: true,\n*/\n\nvar VALID_CLASS = 'ng-valid',\n    INVALID_CLASS = 'ng-invalid',\n    PRISTINE_CLASS = 'ng-pristine',\n    DIRTY_CLASS = 'ng-dirty',\n    UNTOUCHED_CLASS = 'ng-untouched',\n    TOUCHED_CLASS = 'ng-touched',\n    PENDING_CLASS = 'ng-pending';\n\nvar ngModelMinErr = minErr('ngModel');\n\n/**\n * @ngdoc type\n * @name ngModel.NgModelController\n *\n * @property {string} $viewValue Actual string value in the view.\n * @property {*} $modelValue The value in the model that the control is bound to.\n * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever\n       the control reads value from the DOM. The functions are called in array order, each passing\n       its return value through to the next. The last return value is forwarded to the\n       {@link ngModel.NgModelController#$validators `$validators`} collection.\n\nParsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue\n`$viewValue`}.\n\nReturning `undefined` from a parser means a parse error occurred. In that case,\nno {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel`\nwill be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`}\nis set to `true`. The parse error is stored in `ngModel.$error.parse`.\n\n *\n * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever\n       the model value changes. The functions are called in reverse array order, each passing the value through to the\n       next. The last return value is used as the actual DOM value.\n       Used to format / convert values for display in the control.\n * ```js\n * function formatter(value) {\n *   if (value) {\n *     return value.toUpperCase();\n *   }\n * }\n * ngModel.$formatters.push(formatter);\n * ```\n *\n * @property {Object.<string, function>} $validators A collection of validators that are applied\n *      whenever the model value changes. The key value within the object refers to the name of the\n *      validator while the function refers to the validation operation. The validation operation is\n *      provided with the model value as an argument and must return a true or false value depending\n *      on the response of that validation.\n *\n * ```js\n * ngModel.$validators.validCharacters = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *   return /[0-9]+/.test(value) &&\n *          /[a-z]+/.test(value) &&\n *          /[A-Z]+/.test(value) &&\n *          /\\W+/.test(value);\n * };\n * ```\n *\n * @property {Object.<string, function>} $asyncValidators A collection of validations that are expected to\n *      perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided\n *      is expected to return a promise when it is run during the model validation process. Once the promise\n *      is delivered then the validation status will be set to true when fulfilled and false when rejected.\n *      When the asynchronous validators are triggered, each of the validators will run in parallel and the model\n *      value will only be updated once all validators have been fulfilled. As long as an asynchronous validator\n *      is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators\n *      will only run once all synchronous validators have passed.\n *\n * Please note that if $http is used then it is important that the server returns a success HTTP response code\n * in order to fulfill the validation and a status level of `4xx` in order to reject the validation.\n *\n * ```js\n * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *\n *   // Lookup user by username\n *   return $http.get('/api/users/' + value).\n *      then(function resolved() {\n *        //username exists, this means validation fails\n *        return $q.reject('exists');\n *      }, function rejected() {\n *        //username does not exist, therefore this validation passes\n *        return true;\n *      });\n * };\n * ```\n *\n * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever the\n *     view value has changed. It is called with no arguments, and its return value is ignored.\n *     This can be used in place of additional $watches against the model value.\n *\n * @property {Object} $error An object hash with all failing validator ids as keys.\n * @property {Object} $pending An object hash with all pending validator ids as keys.\n *\n * @property {boolean} $untouched True if control has not lost focus yet.\n * @property {boolean} $touched True if control has lost focus.\n * @property {boolean} $pristine True if user has not interacted with the control yet.\n * @property {boolean} $dirty True if user has already interacted with the control.\n * @property {boolean} $valid True if there is no error.\n * @property {boolean} $invalid True if at least one error on the control.\n * @property {string} $name The name attribute of the control.\n *\n * @description\n *\n * `NgModelController` provides API for the {@link ngModel `ngModel`} directive.\n * The controller contains services for data-binding, validation, CSS updates, and value formatting\n * and parsing. It purposefully does not contain any logic which deals with DOM rendering or\n * listening to DOM events.\n * Such DOM related logic should be provided by other directives which make use of\n * `NgModelController` for data-binding to control elements.\n * Angular provides this DOM logic for most {@link input `input`} elements.\n * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example\n * custom control example} that uses `ngModelController` to bind to `contenteditable` elements.\n *\n * @example\n * ### Custom Control Example\n * This example shows how to use `NgModelController` with a custom control to achieve\n * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)\n * collaborate together to achieve the desired result.\n *\n * `contenteditable` is an HTML5 attribute, which tells the browser to let the element\n * contents be edited in place by the user.\n *\n * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}\n * module to automatically remove \"bad\" content like inline event listener (e.g. `<span onclick=\"...\">`).\n * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks\n * that content using the `$sce` service.\n *\n * <example name=\"NgModelController\" module=\"customControl\" deps=\"angular-sanitize.js\">\n    <file name=\"style.css\">\n      [contenteditable] {\n        border: 1px solid black;\n        background-color: white;\n        min-height: 20px;\n      }\n\n      .ng-invalid {\n        border: 1px solid red;\n      }\n\n    </file>\n    <file name=\"script.js\">\n      angular.module('customControl', ['ngSanitize']).\n        directive('contenteditable', ['$sce', function($sce) {\n          return {\n            restrict: 'A', // only activate on element attribute\n            require: '?ngModel', // get a hold of NgModelController\n            link: function(scope, element, attrs, ngModel) {\n              if (!ngModel) return; // do nothing if no ng-model\n\n              // Specify how UI should be updated\n              ngModel.$render = function() {\n                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));\n              };\n\n              // Listen for change events to enable binding\n              element.on('blur keyup change', function() {\n                scope.$evalAsync(read);\n              });\n              read(); // initialize\n\n              // Write data to the model\n              function read() {\n                var html = element.html();\n                // When we clear the content editable the browser leaves a <br> behind\n                // If strip-br attribute is provided then we strip this out\n                if ( attrs.stripBr && html == '<br>' ) {\n                  html = '';\n                }\n                ngModel.$setViewValue(html);\n              }\n            }\n          };\n        }]);\n    </file>\n    <file name=\"index.html\">\n      <form name=\"myForm\">\n       <div contenteditable\n            name=\"myWidget\" ng-model=\"userContent\"\n            strip-br=\"true\"\n            required>Change me!</div>\n        <span ng-show=\"myForm.myWidget.$error.required\">Required!</span>\n       <hr>\n       <textarea ng-model=\"userContent\"></textarea>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n    it('should data-bind and become invalid', function() {\n      if (browser.params.browser == 'safari' || browser.params.browser == 'firefox') {\n        // SafariDriver can't handle contenteditable\n        // and Firefox driver can't clear contenteditables very well\n        return;\n      }\n      var contentEditable = element(by.css('[contenteditable]'));\n      var content = 'Change me!';\n\n      expect(contentEditable.getText()).toEqual(content);\n\n      contentEditable.clear();\n      contentEditable.sendKeys(protractor.Key.BACK_SPACE);\n      expect(contentEditable.getText()).toEqual('');\n      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);\n    });\n    </file>\n * </example>\n *\n *\n */\nvar NgModelController = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$rootScope', '$q', '$interpolate',\n    function($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $rootScope, $q, $interpolate) {\n  this.$viewValue = Number.NaN;\n  this.$modelValue = Number.NaN;\n  this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity.\n  this.$validators = {};\n  this.$asyncValidators = {};\n  this.$parsers = [];\n  this.$formatters = [];\n  this.$viewChangeListeners = [];\n  this.$untouched = true;\n  this.$touched = false;\n  this.$pristine = true;\n  this.$dirty = false;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$error = {}; // keep invalid keys here\n  this.$$success = {}; // keep valid keys here\n  this.$pending = undefined; // keep pending keys here\n  this.$name = $interpolate($attr.name || '', false)($scope);\n\n\n  var parsedNgModel = $parse($attr.ngModel),\n      parsedNgModelAssign = parsedNgModel.assign,\n      ngModelGet = parsedNgModel,\n      ngModelSet = parsedNgModelAssign,\n      pendingDebounce = null,\n      parserValid,\n      ctrl = this;\n\n  this.$$setOptions = function(options) {\n    ctrl.$options = options;\n    if (options && options.getterSetter) {\n      var invokeModelGetter = $parse($attr.ngModel + '()'),\n          invokeModelSetter = $parse($attr.ngModel + '($$$p)');\n\n      ngModelGet = function($scope) {\n        var modelValue = parsedNgModel($scope);\n        if (isFunction(modelValue)) {\n          modelValue = invokeModelGetter($scope);\n        }\n        return modelValue;\n      };\n      ngModelSet = function($scope, newValue) {\n        if (isFunction(parsedNgModel($scope))) {\n          invokeModelSetter($scope, {$$$p: ctrl.$modelValue});\n        } else {\n          parsedNgModelAssign($scope, ctrl.$modelValue);\n        }\n      };\n    } else if (!parsedNgModel.assign) {\n      throw ngModelMinErr('nonassign', \"Expression '{0}' is non-assignable. Element: {1}\",\n          $attr.ngModel, startingTag($element));\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$render\n   *\n   * @description\n   * Called when the view needs to be updated. It is expected that the user of the ng-model\n   * directive will implement this method.\n   *\n   * The `$render()` method is invoked in the following situations:\n   *\n   * * `$rollbackViewValue()` is called.  If we are rolling back the view value to the last\n   *   committed value then `$render()` is called to update the input control.\n   * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and\n   *   the `$viewValue` are different to last time.\n   *\n   * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of\n   * `$modelValue` and `$viewValue` are actually different to their previous value. If `$modelValue`\n   * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be\n   * invoked if you only change a property on the objects.\n   */\n  this.$render = noop;\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$isEmpty\n   *\n   * @description\n   * This is called when we need to determine if the value of an input is empty.\n   *\n   * For instance, the required directive does this to work out if the input has data or not.\n   *\n   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.\n   *\n   * You can override this for input directives whose concept of being empty is different to the\n   * default. The `checkboxInputType` directive does this because in its case a value of `false`\n   * implies empty.\n   *\n   * @param {*} value The value of the input to check for emptiness.\n   * @returns {boolean} True if `value` is \"empty\".\n   */\n  this.$isEmpty = function(value) {\n    return isUndefined(value) || value === '' || value === null || value !== value;\n  };\n\n  var parentForm = $element.inheritedData('$formController') || nullFormCtrl,\n      currentValidationRunId = 0;\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setValidity\n   *\n   * @description\n   * Change the validity state, and notify the form.\n   *\n   * This method can be called within $parsers/$formatters or a custom validation implementation.\n   * However, in most cases it should be sufficient to use the `ngModel.$validators` and\n   * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically.\n   *\n   * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned\n   *        to either `$error[validationErrorKey]` or `$pending[validationErrorKey]`\n   *        (for unfulfilled `$asyncValidators`), so that it is available for data-binding.\n   *        The `validationErrorKey` should be in camelCase and will get converted into dash-case\n   *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`\n   *        class and can be bound to as  `{{someForm.someControl.$error.myError}}` .\n   * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined),\n   *                          or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n   *                          Skipped is used by Angular when validators do not run because of parse errors and\n   *                          when `$asyncValidators` do not run because any of the `$validators` failed.\n   */\n  addSetValidityMethod({\n    ctrl: this,\n    $element: $element,\n    set: function(object, property) {\n      object[property] = true;\n    },\n    unset: function(object, property) {\n      delete object[property];\n    },\n    parentForm: parentForm,\n    $animate: $animate\n  });\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setPristine\n   *\n   * @description\n   * Sets the control to its pristine state.\n   *\n   * This method can be called to remove the `ng-dirty` class and set the control to its pristine\n   * state (`ng-pristine` class). A model is considered to be pristine when the control\n   * has not been changed from when first compiled.\n   */\n  this.$setPristine = function() {\n    ctrl.$dirty = false;\n    ctrl.$pristine = true;\n    $animate.removeClass($element, DIRTY_CLASS);\n    $animate.addClass($element, PRISTINE_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setDirty\n   *\n   * @description\n   * Sets the control to its dirty state.\n   *\n   * This method can be called to remove the `ng-pristine` class and set the control to its dirty\n   * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed\n   * from when first compiled.\n   */\n  this.$setDirty = function() {\n    ctrl.$dirty = true;\n    ctrl.$pristine = false;\n    $animate.removeClass($element, PRISTINE_CLASS);\n    $animate.addClass($element, DIRTY_CLASS);\n    parentForm.$setDirty();\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setUntouched\n   *\n   * @description\n   * Sets the control to its untouched state.\n   *\n   * This method can be called to remove the `ng-touched` class and set the control to its\n   * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched\n   * by default, however this function can be used to restore that state if the model has\n   * already been touched by the user.\n   */\n  this.$setUntouched = function() {\n    ctrl.$touched = false;\n    ctrl.$untouched = true;\n    $animate.setClass($element, UNTOUCHED_CLASS, TOUCHED_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setTouched\n   *\n   * @description\n   * Sets the control to its touched state.\n   *\n   * This method can be called to remove the `ng-untouched` class and set the control to its\n   * touched state (`ng-touched` class). A model is considered to be touched when the user has\n   * first focused the control element and then shifted focus away from the control (blur event).\n   */\n  this.$setTouched = function() {\n    ctrl.$touched = true;\n    ctrl.$untouched = false;\n    $animate.setClass($element, TOUCHED_CLASS, UNTOUCHED_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$rollbackViewValue\n   *\n   * @description\n   * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`,\n   * which may be caused by a pending debounced event or because the input is waiting for a some\n   * future event.\n   *\n   * If you have an input that uses `ng-model-options` to set up debounced events or events such\n   * as blur you can have a situation where there is a period when the `$viewValue`\n   * is out of synch with the ngModel's `$modelValue`.\n   *\n   * In this case, you can run into difficulties if you try to update the ngModel's `$modelValue`\n   * programmatically before these debounced/future events have resolved/occurred, because Angular's\n   * dirty checking mechanism is not able to tell whether the model has actually changed or not.\n   *\n   * The `$rollbackViewValue()` method should be called before programmatically changing the model of an\n   * input which may have such events pending. This is important in order to make sure that the\n   * input field will be updated with the new model value and any pending operations are cancelled.\n   *\n   * <example name=\"ng-model-cancel-update\" module=\"cancel-update-example\">\n   *   <file name=\"app.js\">\n   *     angular.module('cancel-update-example', [])\n   *\n   *     .controller('CancelUpdateController', ['$scope', function($scope) {\n   *       $scope.resetWithCancel = function(e) {\n   *         if (e.keyCode == 27) {\n   *           $scope.myForm.myInput1.$rollbackViewValue();\n   *           $scope.myValue = '';\n   *         }\n   *       };\n   *       $scope.resetWithoutCancel = function(e) {\n   *         if (e.keyCode == 27) {\n   *           $scope.myValue = '';\n   *         }\n   *       };\n   *     }]);\n   *   </file>\n   *   <file name=\"index.html\">\n   *     <div ng-controller=\"CancelUpdateController\">\n   *       <p>Try typing something in each input.  See that the model only updates when you\n   *          blur off the input.\n   *        </p>\n   *        <p>Now see what happens if you start typing then press the Escape key</p>\n   *\n   *       <form name=\"myForm\" ng-model-options=\"{ updateOn: 'blur' }\">\n   *         <p>With $rollbackViewValue()</p>\n   *         <input name=\"myInput1\" ng-model=\"myValue\" ng-keydown=\"resetWithCancel($event)\"><br/>\n   *         myValue: \"{{ myValue }}\"\n   *\n   *         <p>Without $rollbackViewValue()</p>\n   *         <input name=\"myInput2\" ng-model=\"myValue\" ng-keydown=\"resetWithoutCancel($event)\"><br/>\n   *         myValue: \"{{ myValue }}\"\n   *       </form>\n   *     </div>\n   *   </file>\n   * </example>\n   */\n  this.$rollbackViewValue = function() {\n    $timeout.cancel(pendingDebounce);\n    ctrl.$viewValue = ctrl.$$lastCommittedViewValue;\n    ctrl.$render();\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$validate\n   *\n   * @description\n   * Runs each of the registered validators (first synchronous validators and then\n   * asynchronous validators).\n   * If the validity changes to invalid, the model will be set to `undefined`,\n   * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`.\n   * If the validity changes to valid, it will set the model to the last available valid\n   * `$modelValue`, i.e. either the last parsed value or the last value set from the scope.\n   */\n  this.$validate = function() {\n    // ignore $validate before model is initialized\n    if (isNumber(ctrl.$modelValue) && isNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    var viewValue = ctrl.$$lastCommittedViewValue;\n    // Note: we use the $$rawModelValue as $modelValue might have been\n    // set to undefined during a view -> model update that found validation\n    // errors. We can't parse the view here, since that could change\n    // the model although neither viewValue nor the model on the scope changed\n    var modelValue = ctrl.$$rawModelValue;\n\n    var prevValid = ctrl.$valid;\n    var prevModelValue = ctrl.$modelValue;\n\n    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;\n\n    ctrl.$$runValidators(modelValue, viewValue, function(allValid) {\n      // If there was no change in validity, don't update the model\n      // This prevents changing an invalid modelValue to undefined\n      if (!allowInvalid && prevValid !== allValid) {\n        // Note: Don't check ctrl.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        ctrl.$modelValue = allValid ? modelValue : undefined;\n\n        if (ctrl.$modelValue !== prevModelValue) {\n          ctrl.$$writeModelToScope();\n        }\n      }\n    });\n\n  };\n\n  this.$$runValidators = function(modelValue, viewValue, doneCallback) {\n    currentValidationRunId++;\n    var localValidationRunId = currentValidationRunId;\n\n    // check parser error\n    if (!processParseErrors()) {\n      validationDone(false);\n      return;\n    }\n    if (!processSyncValidators()) {\n      validationDone(false);\n      return;\n    }\n    processAsyncValidators();\n\n    function processParseErrors() {\n      var errorKey = ctrl.$$parserName || 'parse';\n      if (parserValid === undefined) {\n        setValidity(errorKey, null);\n      } else {\n        if (!parserValid) {\n          forEach(ctrl.$validators, function(v, name) {\n            setValidity(name, null);\n          });\n          forEach(ctrl.$asyncValidators, function(v, name) {\n            setValidity(name, null);\n          });\n        }\n        // Set the parse error last, to prevent unsetting it, should a $validators key == parserName\n        setValidity(errorKey, parserValid);\n        return parserValid;\n      }\n      return true;\n    }\n\n    function processSyncValidators() {\n      var syncValidatorsValid = true;\n      forEach(ctrl.$validators, function(validator, name) {\n        var result = validator(modelValue, viewValue);\n        syncValidatorsValid = syncValidatorsValid && result;\n        setValidity(name, result);\n      });\n      if (!syncValidatorsValid) {\n        forEach(ctrl.$asyncValidators, function(v, name) {\n          setValidity(name, null);\n        });\n        return false;\n      }\n      return true;\n    }\n\n    function processAsyncValidators() {\n      var validatorPromises = [];\n      var allValid = true;\n      forEach(ctrl.$asyncValidators, function(validator, name) {\n        var promise = validator(modelValue, viewValue);\n        if (!isPromiseLike(promise)) {\n          throw ngModelMinErr(\"$asyncValidators\",\n            \"Expected asynchronous validator to return a promise but got '{0}' instead.\", promise);\n        }\n        setValidity(name, undefined);\n        validatorPromises.push(promise.then(function() {\n          setValidity(name, true);\n        }, function(error) {\n          allValid = false;\n          setValidity(name, false);\n        }));\n      });\n      if (!validatorPromises.length) {\n        validationDone(true);\n      } else {\n        $q.all(validatorPromises).then(function() {\n          validationDone(allValid);\n        }, noop);\n      }\n    }\n\n    function setValidity(name, isValid) {\n      if (localValidationRunId === currentValidationRunId) {\n        ctrl.$setValidity(name, isValid);\n      }\n    }\n\n    function validationDone(allValid) {\n      if (localValidationRunId === currentValidationRunId) {\n\n        doneCallback(allValid);\n      }\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$commitViewValue\n   *\n   * @description\n   * Commit a pending update to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. this method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  this.$commitViewValue = function() {\n    var viewValue = ctrl.$viewValue;\n\n    $timeout.cancel(pendingDebounce);\n\n    // If the view value has not changed then we should just exit, except in the case where there is\n    // a native validator on the element. In this case the validation state may have changed even though\n    // the viewValue has stayed empty.\n    if (ctrl.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !ctrl.$$hasNativeValidators)) {\n      return;\n    }\n    ctrl.$$lastCommittedViewValue = viewValue;\n\n    // change to dirty\n    if (ctrl.$pristine) {\n      this.$setDirty();\n    }\n    this.$$parseAndValidate();\n  };\n\n  this.$$parseAndValidate = function() {\n    var viewValue = ctrl.$$lastCommittedViewValue;\n    var modelValue = viewValue;\n    parserValid = isUndefined(modelValue) ? undefined : true;\n\n    if (parserValid) {\n      for (var i = 0; i < ctrl.$parsers.length; i++) {\n        modelValue = ctrl.$parsers[i](modelValue);\n        if (isUndefined(modelValue)) {\n          parserValid = false;\n          break;\n        }\n      }\n    }\n    if (isNumber(ctrl.$modelValue) && isNaN(ctrl.$modelValue)) {\n      // ctrl.$modelValue has not been touched yet...\n      ctrl.$modelValue = ngModelGet($scope);\n    }\n    var prevModelValue = ctrl.$modelValue;\n    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;\n    ctrl.$$rawModelValue = modelValue;\n\n    if (allowInvalid) {\n      ctrl.$modelValue = modelValue;\n      writeToModelIfNeeded();\n    }\n\n    // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date.\n    // This can happen if e.g. $setViewValue is called from inside a parser\n    ctrl.$$runValidators(modelValue, ctrl.$$lastCommittedViewValue, function(allValid) {\n      if (!allowInvalid) {\n        // Note: Don't check ctrl.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        ctrl.$modelValue = allValid ? modelValue : undefined;\n        writeToModelIfNeeded();\n      }\n    });\n\n    function writeToModelIfNeeded() {\n      if (ctrl.$modelValue !== prevModelValue) {\n        ctrl.$$writeModelToScope();\n      }\n    }\n  };\n\n  this.$$writeModelToScope = function() {\n    ngModelSet($scope, ctrl.$modelValue);\n    forEach(ctrl.$viewChangeListeners, function(listener) {\n      try {\n        listener();\n      } catch (e) {\n        $exceptionHandler(e);\n      }\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setViewValue\n   *\n   * @description\n   * Update the view value.\n   *\n   * This method should be called when an input directive want to change the view value; typically,\n   * this is done from within a DOM event handler.\n   *\n   * For example {@link ng.directive:input input} calls it when the value of the input changes and\n   * {@link ng.directive:select select} calls it when an option is selected.\n   *\n   * If the new `value` is an object (rather than a string or a number), we should make a copy of the\n   * object before passing it to `$setViewValue`.  This is because `ngModel` does not perform a deep\n   * watch of objects, it only looks for a change of identity. If you only change the property of\n   * the object then ngModel will not realise that the object has changed and will not invoke the\n   * `$parsers` and `$validators` pipelines.\n   *\n   * For this reason, you should not change properties of the copy once it has been passed to\n   * `$setViewValue`. Otherwise you may cause the model value on the scope to change incorrectly.\n   *\n   * When this method is called, the new `value` will be staged for committing through the `$parsers`\n   * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged\n   * value sent directly for processing, finally to be applied to `$modelValue` and then the\n   * **expression** specified in the `ng-model` attribute.\n   *\n   * Lastly, all the registered change listeners, in the `$viewChangeListeners` list, are called.\n   *\n   * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn`\n   * and the `default` trigger is not listed, all those actions will remain pending until one of the\n   * `updateOn` events is triggered on the DOM element.\n   * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions}\n   * directive is used with a custom debounce for this particular event.\n   *\n   * Note that calling this function does not trigger a `$digest`.\n   *\n   * @param {string} value Value from the view.\n   * @param {string} trigger Event that triggered the update.\n   */\n  this.$setViewValue = function(value, trigger) {\n    ctrl.$viewValue = value;\n    if (!ctrl.$options || ctrl.$options.updateOnDefault) {\n      ctrl.$$debounceViewValueCommit(trigger);\n    }\n  };\n\n  this.$$debounceViewValueCommit = function(trigger) {\n    var debounceDelay = 0,\n        options = ctrl.$options,\n        debounce;\n\n    if (options && isDefined(options.debounce)) {\n      debounce = options.debounce;\n      if (isNumber(debounce)) {\n        debounceDelay = debounce;\n      } else if (isNumber(debounce[trigger])) {\n        debounceDelay = debounce[trigger];\n      } else if (isNumber(debounce['default'])) {\n        debounceDelay = debounce['default'];\n      }\n    }\n\n    $timeout.cancel(pendingDebounce);\n    if (debounceDelay) {\n      pendingDebounce = $timeout(function() {\n        ctrl.$commitViewValue();\n      }, debounceDelay);\n    } else if ($rootScope.$$phase) {\n      ctrl.$commitViewValue();\n    } else {\n      $scope.$apply(function() {\n        ctrl.$commitViewValue();\n      });\n    }\n  };\n\n  // model -> value\n  // Note: we cannot use a normal scope.$watch as we want to detect the following:\n  // 1. scope value is 'a'\n  // 2. user enters 'b'\n  // 3. ng-change kicks in and reverts scope value to 'a'\n  //    -> scope value did not change since the last digest as\n  //       ng-change executes in apply phase\n  // 4. view should be changed back to 'a'\n  $scope.$watch(function ngModelWatch() {\n    var modelValue = ngModelGet($scope);\n\n    // if scope model value and ngModel value are out of sync\n    // TODO(perf): why not move this to the action fn?\n    if (modelValue !== ctrl.$modelValue &&\n       // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator\n       (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue)\n    ) {\n      ctrl.$modelValue = ctrl.$$rawModelValue = modelValue;\n      parserValid = undefined;\n\n      var formatters = ctrl.$formatters,\n          idx = formatters.length;\n\n      var viewValue = modelValue;\n      while (idx--) {\n        viewValue = formatters[idx](viewValue);\n      }\n      if (ctrl.$viewValue !== viewValue) {\n        ctrl.$viewValue = ctrl.$$lastCommittedViewValue = viewValue;\n        ctrl.$render();\n\n        ctrl.$$runValidators(modelValue, viewValue, noop);\n      }\n    }\n\n    return modelValue;\n  });\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngModel\n *\n * @element input\n * @priority 1\n *\n * @description\n * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a\n * property on the scope using {@link ngModel.NgModelController NgModelController},\n * which is created and exposed by this directive.\n *\n * `ngModel` is responsible for:\n *\n * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`\n *   require.\n * - Providing validation behavior (i.e. required, number, email, url).\n * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors).\n * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`, `ng-untouched`) including animations.\n * - Registering the control with its parent {@link ng.directive:form form}.\n *\n * Note: `ngModel` will try to bind to the property given by evaluating the expression on the\n * current scope. If the property doesn't already exist on this scope, it will be created\n * implicitly and added to the scope.\n *\n * For best practices on using `ngModel`, see:\n *\n *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)\n *\n * For basic examples, how to use `ngModel`, see:\n *\n *  - {@link ng.directive:input input}\n *    - {@link input[text] text}\n *    - {@link input[checkbox] checkbox}\n *    - {@link input[radio] radio}\n *    - {@link input[number] number}\n *    - {@link input[email] email}\n *    - {@link input[url] url}\n *    - {@link input[date] date}\n *    - {@link input[datetime-local] datetime-local}\n *    - {@link input[time] time}\n *    - {@link input[month] month}\n *    - {@link input[week] week}\n *  - {@link ng.directive:select select}\n *  - {@link ng.directive:textarea textarea}\n *\n * # CSS classes\n * The following CSS classes are added and removed on the associated input/select/textarea element\n * depending on the validity of the model.\n *\n *  - `ng-valid`: the model is valid\n *  - `ng-invalid`: the model is invalid\n *  - `ng-valid-[key]`: for each valid key added by `$setValidity`\n *  - `ng-invalid-[key]`: for each invalid key added by `$setValidity`\n *  - `ng-pristine`: the control hasn't been interacted with yet\n *  - `ng-dirty`: the control has been interacted with\n *  - `ng-touched`: the control has been blurred\n *  - `ng-untouched`: the control hasn't been blurred\n *  - `ng-pending`: any `$asyncValidators` are unfulfilled\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n * ## Animation Hooks\n *\n * Animations within models are triggered when any of the associated CSS classes are added and removed\n * on the input element which is attached to the model. These classes are: `.ng-pristine`, `.ng-dirty`,\n * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.\n * The animations that are triggered within ngModel are similar to how they work in ngClass and\n * animations can be hooked into using CSS transitions, keyframes as well as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style an input element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-input {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-input.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n * <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"inputExample\">\n     <file name=\"index.html\">\n       <script>\n        angular.module('inputExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.val = '1';\n          }]);\n       </script>\n       <style>\n         .my-input {\n           -webkit-transition:all linear 0.5s;\n           transition:all linear 0.5s;\n           background: transparent;\n         }\n         .my-input.ng-invalid {\n           color:white;\n           background: red;\n         }\n       </style>\n       Update input to see transitions when valid/invalid.\n       Integer is a valid value.\n       <form name=\"testForm\" ng-controller=\"ExampleController\">\n         <input ng-model=\"val\" ng-pattern=\"/^\\d+$/\" name=\"anim\" class=\"my-input\" />\n       </form>\n     </file>\n * </example>\n *\n * ## Binding to a getter/setter\n *\n * Sometimes it's helpful to bind `ngModel` to a getter/setter function.  A getter/setter is a\n * function that returns a representation of the model when called with zero arguments, and sets\n * the internal state of a model when called with an argument. It's sometimes useful to use this\n * for models that have an internal representation that's different than what the model exposes\n * to the view.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's best to keep getters fast because Angular is likely to call them more\n * frequently than other parts of your code.\n * </div>\n *\n * You use this behavior by adding `ng-model-options=\"{ getterSetter: true }\"` to an element that\n * has `ng-model` attached to it. You can also add `ng-model-options=\"{ getterSetter: true }\"` to\n * a `<form>`, which will enable this behavior for all `<input>`s within it. See\n * {@link ng.directive:ngModelOptions `ngModelOptions`} for more.\n *\n * The following example shows how to use `ngModel` with a getter/setter:\n *\n * @example\n * <example name=\"ngModel-getter-setter\" module=\"getterSetterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <form name=\"userForm\">\n           Name:\n           <input type=\"text\" name=\"userName\"\n                  ng-model=\"user.name\"\n                  ng-model-options=\"{ getterSetter: true }\" />\n         </form>\n         <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n       </div>\n     </file>\n     <file name=\"app.js\">\n       angular.module('getterSetterExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var _name = 'Brian';\n           $scope.user = {\n             name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n             }\n           };\n         }]);\n     </file>\n * </example>\n */\nvar ngModelDirective = ['$rootScope', function($rootScope) {\n  return {\n    restrict: 'A',\n    require: ['ngModel', '^?form', '^?ngModelOptions'],\n    controller: NgModelController,\n    // Prelink needs to run before any input directive\n    // so that we can set the NgModelOptions in NgModelController\n    // before anyone else uses it.\n    priority: 1,\n    compile: function ngModelCompile(element) {\n      // Setup initial state of the control\n      element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS);\n\n      return {\n        pre: function ngModelPreLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0],\n              formCtrl = ctrls[1] || nullFormCtrl;\n\n          modelCtrl.$$setOptions(ctrls[2] && ctrls[2].$options);\n\n          // notify others, especially parent forms\n          formCtrl.$addControl(modelCtrl);\n\n          attr.$observe('name', function(newValue) {\n            if (modelCtrl.$name !== newValue) {\n              formCtrl.$$renameControl(modelCtrl, newValue);\n            }\n          });\n\n          scope.$on('$destroy', function() {\n            formCtrl.$removeControl(modelCtrl);\n          });\n        },\n        post: function ngModelPostLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0];\n          if (modelCtrl.$options && modelCtrl.$options.updateOn) {\n            element.on(modelCtrl.$options.updateOn, function(ev) {\n              modelCtrl.$$debounceViewValueCommit(ev && ev.type);\n            });\n          }\n\n          element.on('blur', function(ev) {\n            if (modelCtrl.$touched) return;\n\n            if ($rootScope.$$phase) {\n              scope.$evalAsync(modelCtrl.$setTouched);\n            } else {\n              scope.$apply(modelCtrl.$setTouched);\n            }\n          });\n        }\n      };\n    }\n  };\n}];\n\nvar DEFAULT_REGEXP = /(\\s+|^)default(\\s+|$)/;\n\n/**\n * @ngdoc directive\n * @name ngModelOptions\n *\n * @description\n * Allows tuning how model updates are done. Using `ngModelOptions` you can specify a custom list of\n * events that will trigger a model update and/or a debouncing delay so that the actual update only\n * takes place when a timer expires; this timer will be reset after another change takes place.\n *\n * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might\n * be different than the value in the actual model. This means that if you update the model you\n * should also invoke {@link ngModel.NgModelController `$rollbackViewValue`} on the relevant input field in\n * order to make sure it is synchronized with the model and that any debounced action is canceled.\n *\n * The easiest way to reference the control's {@link ngModel.NgModelController `$rollbackViewValue`}\n * method is by making sure the input is placed inside a form that has a `name` attribute. This is\n * important because `form` controllers are published to the related scope under the name in their\n * `name` attribute.\n *\n * Any pending changes will take place immediately when an enclosing form is submitted via the\n * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * `ngModelOptions` has an effect on the element it's declared on and its descendants.\n *\n * @param {Object} ngModelOptions options to apply to the current model. Valid keys are:\n *   - `updateOn`: string specifying which event should the input be bound to. You can set several\n *     events using an space delimited list. There is a special event called `default` that\n *     matches the default events belonging of the control.\n *   - `debounce`: integer value which contains the debounce model update value in milliseconds. A\n *     value of 0 triggers an immediate update. If an object is supplied instead, you can specify a\n *     custom value for each event. For example:\n *     `ng-model-options=\"{ updateOn: 'default blur', debounce: {'default': 500, 'blur': 0} }\"`\n *   - `allowInvalid`: boolean value which indicates that the model can be set with values that did\n *     not validate correctly instead of the default behavior of setting the model to undefined.\n *   - `getterSetter`: boolean value which determines whether or not to treat functions bound to\n       `ngModel` as getters/setters.\n *   - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for\n *     `<input type=\"date\">`, `<input type=\"time\">`, ... . Right now, the only supported value is `'UTC'`,\n *     otherwise the default timezone of the browser will be used.\n *\n * @example\n\n  The following example shows how to override immediate updates. Changes on the inputs within the\n  form will update the model only when the control loses focus (blur event). If `escape` key is\n  pressed while the input field is focused, the value is reset to the value in the current model.\n\n  <example name=\"ngModelOptions-directive-blur\" module=\"optionsExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          Name:\n          <input type=\"text\" name=\"userName\"\n                 ng-model=\"user.name\"\n                 ng-model-options=\"{ updateOn: 'blur' }\"\n                 ng-keyup=\"cancel($event)\" /><br />\n\n          Other data:\n          <input type=\"text\" ng-model=\"user.data\" /><br />\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.user = { name: 'say', data: '' };\n\n          $scope.cancel = function(e) {\n            if (e.keyCode == 27) {\n              $scope.userForm.userName.$rollbackViewValue();\n            }\n          };\n        }]);\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var model = element(by.binding('user.name'));\n      var input = element(by.model('user.name'));\n      var other = element(by.model('user.data'));\n\n      it('should allow custom events', function() {\n        input.sendKeys(' hello');\n        input.click();\n        expect(model.getText()).toEqual('say');\n        other.click();\n        expect(model.getText()).toEqual('say hello');\n      });\n\n      it('should $rollbackViewValue when model changes', function() {\n        input.sendKeys(' hello');\n        expect(input.getAttribute('value')).toEqual('say hello');\n        input.sendKeys(protractor.Key.ESCAPE);\n        expect(input.getAttribute('value')).toEqual('say');\n        other.click();\n        expect(model.getText()).toEqual('say');\n      });\n    </file>\n  </example>\n\n  This one shows how to debounce model changes. Model will be updated only 1 sec after last change.\n  If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty.\n\n  <example name=\"ngModelOptions-directive-debounce\" module=\"optionsExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          Name:\n          <input type=\"text\" name=\"userName\"\n                 ng-model=\"user.name\"\n                 ng-model-options=\"{ debounce: 1000 }\" />\n          <button ng-click=\"userForm.userName.$rollbackViewValue(); user.name=''\">Clear</button><br />\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.user = { name: 'say' };\n        }]);\n    </file>\n  </example>\n\n  This one shows how to bind to getter/setters:\n\n  <example name=\"ngModelOptions-directive-getter-setter\" module=\"getterSetterExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          Name:\n          <input type=\"text\" name=\"userName\"\n                 ng-model=\"user.name\"\n                 ng-model-options=\"{ getterSetter: true }\" />\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('getterSetterExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          var _name = 'Brian';\n          $scope.user = {\n            name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n            }\n          };\n        }]);\n    </file>\n  </example>\n */\nvar ngModelOptionsDirective = function() {\n  return {\n    restrict: 'A',\n    controller: ['$scope', '$attrs', function($scope, $attrs) {\n      var that = this;\n      this.$options = $scope.$eval($attrs.ngModelOptions);\n      // Allow adding/overriding bound events\n      if (this.$options.updateOn !== undefined) {\n        this.$options.updateOnDefault = false;\n        // extract \"default\" pseudo-event from list of events that can trigger a model update\n        this.$options.updateOn = trim(this.$options.updateOn.replace(DEFAULT_REGEXP, function() {\n          that.$options.updateOnDefault = true;\n          return ' ';\n        }));\n      } else {\n        this.$options.updateOnDefault = true;\n      }\n    }]\n  };\n};\n\n\n\n// helper methods\nfunction addSetValidityMethod(context) {\n  var ctrl = context.ctrl,\n      $element = context.$element,\n      classCache = {},\n      set = context.set,\n      unset = context.unset,\n      parentForm = context.parentForm,\n      $animate = context.$animate;\n\n  classCache[INVALID_CLASS] = !(classCache[VALID_CLASS] = $element.hasClass(VALID_CLASS));\n\n  ctrl.$setValidity = setValidity;\n\n  function setValidity(validationErrorKey, state, controller) {\n    if (state === undefined) {\n      createAndSet('$pending', validationErrorKey, controller);\n    } else {\n      unsetAndCleanup('$pending', validationErrorKey, controller);\n    }\n    if (!isBoolean(state)) {\n      unset(ctrl.$error, validationErrorKey, controller);\n      unset(ctrl.$$success, validationErrorKey, controller);\n    } else {\n      if (state) {\n        unset(ctrl.$error, validationErrorKey, controller);\n        set(ctrl.$$success, validationErrorKey, controller);\n      } else {\n        set(ctrl.$error, validationErrorKey, controller);\n        unset(ctrl.$$success, validationErrorKey, controller);\n      }\n    }\n    if (ctrl.$pending) {\n      cachedToggleClass(PENDING_CLASS, true);\n      ctrl.$valid = ctrl.$invalid = undefined;\n      toggleValidationCss('', null);\n    } else {\n      cachedToggleClass(PENDING_CLASS, false);\n      ctrl.$valid = isObjectEmpty(ctrl.$error);\n      ctrl.$invalid = !ctrl.$valid;\n      toggleValidationCss('', ctrl.$valid);\n    }\n\n    // re-read the state as the set/unset methods could have\n    // combined state in ctrl.$error[validationError] (used for forms),\n    // where setting/unsetting only increments/decrements the value,\n    // and does not replace it.\n    var combinedState;\n    if (ctrl.$pending && ctrl.$pending[validationErrorKey]) {\n      combinedState = undefined;\n    } else if (ctrl.$error[validationErrorKey]) {\n      combinedState = false;\n    } else if (ctrl.$$success[validationErrorKey]) {\n      combinedState = true;\n    } else {\n      combinedState = null;\n    }\n\n    toggleValidationCss(validationErrorKey, combinedState);\n    parentForm.$setValidity(validationErrorKey, combinedState, ctrl);\n  }\n\n  function createAndSet(name, value, controller) {\n    if (!ctrl[name]) {\n      ctrl[name] = {};\n    }\n    set(ctrl[name], value, controller);\n  }\n\n  function unsetAndCleanup(name, value, controller) {\n    if (ctrl[name]) {\n      unset(ctrl[name], value, controller);\n    }\n    if (isObjectEmpty(ctrl[name])) {\n      ctrl[name] = undefined;\n    }\n  }\n\n  function cachedToggleClass(className, switchValue) {\n    if (switchValue && !classCache[className]) {\n      $animate.addClass($element, className);\n      classCache[className] = true;\n    } else if (!switchValue && classCache[className]) {\n      $animate.removeClass($element, className);\n      classCache[className] = false;\n    }\n  }\n\n  function toggleValidationCss(validationErrorKey, isValid) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n\n    cachedToggleClass(VALID_CLASS + validationErrorKey, isValid === true);\n    cachedToggleClass(INVALID_CLASS + validationErrorKey, isValid === false);\n  }\n}\n\nfunction isObjectEmpty(obj) {\n  if (obj) {\n    for (var prop in obj) {\n      return false;\n    }\n  }\n  return true;\n}\n\n/**\n * @ngdoc directive\n * @name ngNonBindable\n * @restrict AC\n * @priority 1000\n *\n * @description\n * The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current\n * DOM element. This is useful if the element contains what appears to be Angular directives and\n * bindings but which should be ignored by Angular. This could be the case if you have a site that\n * displays snippets of code, for instance.\n *\n * @element ANY\n *\n * @example\n * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,\n * but the one wrapped in `ngNonBindable` is left alone.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        <div>Normal: {{1 + 2}}</div>\n        <div ng-non-bindable>Ignored: {{1 + 2}}</div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-non-bindable', function() {\n         expect(element(by.binding('1 + 2')).getText()).toContain('3');\n         expect(element.all(by.css('div')).last().getText()).toMatch(/1 \\+ 2/);\n       });\n      </file>\n    </example>\n */\nvar ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });\n\n/**\n * @ngdoc directive\n * @name ngPluralize\n * @restrict EA\n *\n * @description\n * `ngPluralize` is a directive that displays messages according to en-US localization rules.\n * These rules are bundled with angular.js, but can be overridden\n * (see {@link guide/i18n Angular i18n} dev guide). You configure ngPluralize directive\n * by specifying the mappings between\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * and the strings to be displayed.\n *\n * # Plural categories and explicit number rules\n * There are two\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * in Angular's default en-US locale: \"one\" and \"other\".\n *\n * While a plural category may match many numbers (for example, in en-US locale, \"other\" can match\n * any number that is not 1), an explicit number rule can only match one number. For example, the\n * explicit number rule for \"3\" matches the number 3. There are examples of plural categories\n * and explicit number rules throughout the rest of this documentation.\n *\n * # Configuring ngPluralize\n * You configure ngPluralize by providing 2 attributes: `count` and `when`.\n * You can also provide an optional attribute, `offset`.\n *\n * The value of the `count` attribute can be either a string or an {@link guide/expression\n * Angular expression}; these are evaluated on the current scope for its bound value.\n *\n * The `when` attribute specifies the mappings between plural categories and the actual\n * string to be displayed. The value of the attribute should be a JSON object.\n *\n * The following example shows how to configure ngPluralize:\n *\n * ```html\n * <ng-pluralize count=\"personCount\"\n                 when=\"{'0': 'Nobody is viewing.',\n *                      'one': '1 person is viewing.',\n *                      'other': '{} people are viewing.'}\">\n * </ng-pluralize>\n *```\n *\n * In the example, `\"0: Nobody is viewing.\"` is an explicit number rule. If you did not\n * specify this rule, 0 would be matched to the \"other\" category and \"0 people are viewing\"\n * would be shown instead of \"Nobody is viewing\". You can specify an explicit number rule for\n * other numbers, for example 12, so that instead of showing \"12 people are viewing\", you can\n * show \"a dozen people are viewing\".\n *\n * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted\n * into pluralized strings. In the previous example, Angular will replace `{}` with\n * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder\n * for <span ng-non-bindable>{{numberExpression}}</span>.\n *\n * # Configuring ngPluralize with offset\n * The `offset` attribute allows further customization of pluralized text, which can result in\n * a better user experience. For example, instead of the message \"4 people are viewing this document\",\n * you might display \"John, Kate and 2 others are viewing this document\".\n * The offset attribute allows you to offset a number by any desired value.\n * Let's take a look at an example:\n *\n * ```html\n * <ng-pluralize count=\"personCount\" offset=2\n *               when=\"{'0': 'Nobody is viewing.',\n *                      '1': '{{person1}} is viewing.',\n *                      '2': '{{person1}} and {{person2}} are viewing.',\n *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',\n *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n * </ng-pluralize>\n * ```\n *\n * Notice that we are still using two plural categories(one, other), but we added\n * three explicit number rules 0, 1 and 2.\n * When one person, perhaps John, views the document, \"John is viewing\" will be shown.\n * When three people view the document, no explicit number rule is found, so\n * an offset of 2 is taken off 3, and Angular uses 1 to decide the plural category.\n * In this case, plural category 'one' is matched and \"John, Mary and one other person are viewing\"\n * is shown.\n *\n * Note that when you specify offsets, you must provide explicit number rules for\n * numbers from 0 up to and including the offset. If you use an offset of 3, for example,\n * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for\n * plural categories \"one\" and \"other\".\n *\n * @param {string|expression} count The variable to be bound to.\n * @param {string} when The mapping between plural category to its corresponding strings.\n * @param {number=} offset Offset to deduct from the total number.\n *\n * @example\n    <example module=\"pluralizeExample\">\n      <file name=\"index.html\">\n        <script>\n          angular.module('pluralizeExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.person1 = 'Igor';\n              $scope.person2 = 'Misko';\n              $scope.personCount = 1;\n            }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          Person 1:<input type=\"text\" ng-model=\"person1\" value=\"Igor\" /><br/>\n          Person 2:<input type=\"text\" ng-model=\"person2\" value=\"Misko\" /><br/>\n          Number of People:<input type=\"text\" ng-model=\"personCount\" value=\"1\" /><br/>\n\n          <!--- Example with simple pluralization rules for en locale --->\n          Without Offset:\n          <ng-pluralize count=\"personCount\"\n                        when=\"{'0': 'Nobody is viewing.',\n                               'one': '1 person is viewing.',\n                               'other': '{} people are viewing.'}\">\n          </ng-pluralize><br>\n\n          <!--- Example with offset --->\n          With Offset(2):\n          <ng-pluralize count=\"personCount\" offset=2\n                        when=\"{'0': 'Nobody is viewing.',\n                               '1': '{{person1}} is viewing.',\n                               '2': '{{person1}} and {{person2}} are viewing.',\n                               'one': '{{person1}}, {{person2}} and one other person are viewing.',\n                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n          </ng-pluralize>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should show correct pluralized string', function() {\n          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var countInput = element(by.model('personCount'));\n\n          expect(withoutOffset.getText()).toEqual('1 person is viewing.');\n          expect(withOffset.getText()).toEqual('Igor is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('0');\n\n          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');\n          expect(withOffset.getText()).toEqual('Nobody is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('2');\n\n          expect(withoutOffset.getText()).toEqual('2 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('3');\n\n          expect(withoutOffset.getText()).toEqual('3 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('4');\n\n          expect(withoutOffset.getText()).toEqual('4 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');\n        });\n        it('should show data-bound names', function() {\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var personCount = element(by.model('personCount'));\n          var person1 = element(by.model('person1'));\n          var person2 = element(by.model('person2'));\n          personCount.clear();\n          personCount.sendKeys('4');\n          person1.clear();\n          person1.sendKeys('Di');\n          person2.clear();\n          person2.sendKeys('Vojta');\n          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');\n        });\n      </file>\n    </example>\n */\nvar ngPluralizeDirective = ['$locale', '$interpolate', function($locale, $interpolate) {\n  var BRACE = /{}/g,\n      IS_WHEN = /^when(Minus)?(.+)$/;\n\n  return {\n    restrict: 'EA',\n    link: function(scope, element, attr) {\n      var numberExp = attr.count,\n          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs\n          offset = attr.offset || 0,\n          whens = scope.$eval(whenExp) || {},\n          whensExpFns = {},\n          startSymbol = $interpolate.startSymbol(),\n          endSymbol = $interpolate.endSymbol(),\n          braceReplacement = startSymbol + numberExp + '-' + offset + endSymbol,\n          watchRemover = angular.noop,\n          lastCount;\n\n      forEach(attr, function(expression, attributeName) {\n        var tmpMatch = IS_WHEN.exec(attributeName);\n        if (tmpMatch) {\n          var whenKey = (tmpMatch[1] ? '-' : '') + lowercase(tmpMatch[2]);\n          whens[whenKey] = element.attr(attr.$attr[attributeName]);\n        }\n      });\n      forEach(whens, function(expression, key) {\n        whensExpFns[key] = $interpolate(expression.replace(BRACE, braceReplacement));\n\n      });\n\n      scope.$watch(numberExp, function ngPluralizeWatchAction(newVal) {\n        var count = parseFloat(newVal);\n        var countIsNaN = isNaN(count);\n\n        if (!countIsNaN && !(count in whens)) {\n          // If an explicit number rule such as 1, 2, 3... is defined, just use it.\n          // Otherwise, check it against pluralization rules in $locale service.\n          count = $locale.pluralCat(count - offset);\n        }\n\n        // If both `count` and `lastCount` are NaN, we don't need to re-register a watch.\n        // In JS `NaN !== NaN`, so we have to exlicitly check.\n        if ((count !== lastCount) && !(countIsNaN && isNaN(lastCount))) {\n          watchRemover();\n          watchRemover = scope.$watch(whensExpFns[count], updateElementText);\n          lastCount = count;\n        }\n      });\n\n      function updateElementText(newText) {\n        element.text(newText || '');\n      }\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRepeat\n *\n * @description\n * The `ngRepeat` directive instantiates a template once per item from a collection. Each template\n * instance gets its own scope, where the given loop variable is set to the current collection item,\n * and `$index` is set to the item index or key.\n *\n * Special properties are exposed on the local scope of each template instance, including:\n *\n * | Variable  | Type            | Details                                                                     |\n * |-----------|-----------------|-----------------------------------------------------------------------------|\n * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |\n * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |\n * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |\n * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |\n * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |\n * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |\n *\n * Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.\n * This may be useful when, for instance, nesting ngRepeats.\n *\n * # Iterating over object properties\n *\n * It is possible to get `ngRepeat` to iterate over the properties of an object using the following\n * syntax:\n *\n * ```js\n * <div ng-repeat=\"(key, value) in myObj\"> ... </div>\n * ```\n *\n * You need to be aware that the JavaScript specification does not define what order\n * it will return the keys for an object. In order to have a guaranteed deterministic order\n * for the keys, Angular versions up to and including 1.3 **sort the keys alphabetically**.\n *\n * If this is not desired, the recommended workaround is to convert your object into an array\n * that is sorted into the order that you prefer before providing it to `ngRepeat`.  You could\n * do this with a filter such as [toArrayFilter](http://ngmodules.org/modules/angular-toArrayFilter)\n * or implement a `$watch` on the object yourself.\n *\n * In version 1.4 we will remove the sorting, since it seems that browsers generally follow the\n * strategy of providing keys in the order in which they were defined, although there are exceptions\n * when keys are deleted and reinstated.\n *\n *\n * # Tracking and Duplicates\n *\n * When the contents of the collection change, `ngRepeat` makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * By default, `ngRepeat` does not allow duplicate items in arrays. This is because when\n * there are duplicates, it is not possible to maintain a one-to-one mapping between collection\n * items and DOM elements.\n *\n * If you do need to repeat duplicate items, you can substitute the default tracking behavior\n * with your own using the `track by` expression.\n *\n * For example, you may track items by the index of each item in the collection, using the\n * special scope property `$index`:\n * ```html\n *    <div ng-repeat=\"n in [42, 42, 43, 43] track by $index\">\n *      {{n}}\n *    </div>\n * ```\n *\n * You may use arbitrary expressions in `track by`, including references to custom functions\n * on the scope:\n * ```html\n *    <div ng-repeat=\"n in [42, 42, 43, 43] track by myTrackingFunction(n)\">\n *      {{n}}\n *    </div>\n * ```\n *\n * If you are working with objects that have an identifier property, you can track\n * by the identifier instead of the whole object. Should you reload your data later, `ngRepeat`\n * will not have to rebuild the DOM elements for items it has already rendered, even if the\n * JavaScript objects in the collection have been substituted for new ones:\n * ```html\n *    <div ng-repeat=\"model in collection track by model.id\">\n *      {{model.name}}\n *    </div>\n * ```\n *\n * When no `track by` expression is provided, it is equivalent to tracking by the built-in\n * `$id` function, which tracks items by their identity:\n * ```html\n *    <div ng-repeat=\"obj in collection track by $id(obj)\">\n *      {{obj.prop}}\n *    </div>\n * ```\n *\n * # Special repeat start and end points\n * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending\n * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.\n * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)\n * up to and including the ending HTML tag where **ng-repeat-end** is placed.\n *\n * The example below makes use of this feature:\n * ```html\n *   <header ng-repeat-start=\"item in items\">\n *     Header {{ item }}\n *   </header>\n *   <div class=\"body\">\n *     Body {{ item }}\n *   </div>\n *   <footer ng-repeat-end>\n *     Footer {{ item }}\n *   </footer>\n * ```\n *\n * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:\n * ```html\n *   <header>\n *     Header A\n *   </header>\n *   <div class=\"body\">\n *     Body A\n *   </div>\n *   <footer>\n *     Footer A\n *   </footer>\n *   <header>\n *     Header B\n *   </header>\n *   <div class=\"body\">\n *     Body B\n *   </div>\n *   <footer>\n *     Footer B\n *   </footer>\n * ```\n *\n * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such\n * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).\n *\n * @animations\n * **.enter** - when a new item is added to the list or when an item is revealed after a filter\n *\n * **.leave** - when an item is removed from the list or when an item is filtered out\n *\n * **.move** - when an adjacent item is filtered out causing a reorder or when the item contents are reordered\n *\n * @element ANY\n * @scope\n * @priority 1000\n * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These\n *   formats are currently supported:\n *\n *   * `variable in expression` – where variable is the user defined loop variable and `expression`\n *     is a scope expression giving the collection to enumerate.\n *\n *     For example: `album in artist.albums`.\n *\n *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,\n *     and `expression` is the scope expression giving the collection to enumerate.\n *\n *     For example: `(name, age) in {'adam':10, 'amalie':12}`.\n *\n *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking expression\n *     which can be used to associate the objects in the collection with the DOM elements. If no tracking expression\n *     is specified, ng-repeat associates elements by identity. It is an error to have\n *     more than one tracking expression value resolve to the same key. (This would mean that two distinct objects are\n *     mapped to the same DOM element, which is not possible.)  If filters are used in the expression, they should be\n *     applied before the tracking expression.\n *\n *     For example: `item in items` is equivalent to `item in items track by $id(item)`. This implies that the DOM elements\n *     will be associated by item identity in the array.\n *\n *     For example: `item in items track by $id(item)`. A built in `$id()` function can be used to assign a unique\n *     `$$hashKey` property to each item in the array. This property is then used as a key to associated DOM elements\n *     with the corresponding item in the array by identity. Moving the same object in array would move the DOM\n *     element in the same way in the DOM.\n *\n *     For example: `item in items track by item.id` is a typical pattern when the items come from the database. In this\n *     case the object identity does not matter. Two objects are considered equivalent as long as their `id`\n *     property is same.\n *\n *     For example: `item in items | filter:searchText track by item.id` is a pattern that might be used to apply a filter\n *     to items in conjunction with a tracking expression.\n *\n *   * `variable in expression as alias_expression` – You can also provide an optional alias expression which will then store the\n *     intermediate results of the repeater after the filters have been applied. Typically this is used to render a special message\n *     when a filter is active on the repeater, but the filtered result set is empty.\n *\n *     For example: `item in items | filter:x as results` will store the fragment of the repeated items as `results`, but only after\n *     the items have been processed through the filter.\n *\n * @example\n * This example initializes the scope to a list of names and\n * then uses `ngRepeat` to display every person:\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-init=\"friends = [\n        {name:'John', age:25, gender:'boy'},\n        {name:'Jessie', age:30, gender:'girl'},\n        {name:'Johanna', age:28, gender:'girl'},\n        {name:'Joy', age:15, gender:'girl'},\n        {name:'Mary', age:28, gender:'girl'},\n        {name:'Peter', age:95, gender:'boy'},\n        {name:'Sebastian', age:50, gender:'boy'},\n        {name:'Erika', age:27, gender:'girl'},\n        {name:'Patrick', age:40, gender:'boy'},\n        {name:'Samantha', age:60, gender:'girl'}\n      ]\">\n        I have {{friends.length}} friends. They are:\n        <input type=\"search\" ng-model=\"q\" placeholder=\"filter friends...\" />\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends | filter:q as results\">\n            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.\n          </li>\n          <li class=\"animate-repeat\" ng-if=\"results.length == 0\">\n            <strong>No results found...</strong>\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:40px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        -webkit-transition:all linear 0.5s;\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:40px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var friends = element.all(by.repeater('friend in friends'));\n\n      it('should render initial data set', function() {\n        expect(friends.count()).toBe(10);\n        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');\n        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');\n        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');\n        expect(element(by.binding('friends.length')).getText())\n            .toMatch(\"I have 10 friends. They are:\");\n      });\n\n       it('should update repeater when filter predicate changes', function() {\n         expect(friends.count()).toBe(10);\n\n         element(by.model('q')).sendKeys('ma');\n\n         expect(friends.count()).toBe(2);\n         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');\n         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');\n       });\n      </file>\n    </example>\n */\nvar ngRepeatDirective = ['$parse', '$animate', function($parse, $animate) {\n  var NG_REMOVED = '$$NG_REMOVED';\n  var ngRepeatMinErr = minErr('ngRepeat');\n\n  var updateScope = function(scope, index, valueIdentifier, value, keyIdentifier, key, arrayLength) {\n    // TODO(perf): generate setters to shave off ~40ms or 1-1.5%\n    scope[valueIdentifier] = value;\n    if (keyIdentifier) scope[keyIdentifier] = key;\n    scope.$index = index;\n    scope.$first = (index === 0);\n    scope.$last = (index === (arrayLength - 1));\n    scope.$middle = !(scope.$first || scope.$last);\n    // jshint bitwise: false\n    scope.$odd = !(scope.$even = (index&1) === 0);\n    // jshint bitwise: true\n  };\n\n  var getBlockStart = function(block) {\n    return block.clone[0];\n  };\n\n  var getBlockEnd = function(block) {\n    return block.clone[block.clone.length - 1];\n  };\n\n\n  return {\n    restrict: 'A',\n    multiElement: true,\n    transclude: 'element',\n    priority: 1000,\n    terminal: true,\n    $$tlb: true,\n    compile: function ngRepeatCompile($element, $attr) {\n      var expression = $attr.ngRepeat;\n      var ngRepeatEndComment = document.createComment(' end ngRepeat: ' + expression + ' ');\n\n      var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+track\\s+by\\s+([\\s\\S]+?))?\\s*$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iexp', \"Expected expression in form of '_item_ in _collection_[ track by _id_]' but got '{0}'.\",\n            expression);\n      }\n\n      var lhs = match[1];\n      var rhs = match[2];\n      var aliasAs = match[3];\n      var trackByExp = match[4];\n\n      match = lhs.match(/^(?:(\\s*[\\$\\w]+)|\\(\\s*([\\$\\w]+)\\s*,\\s*([\\$\\w]+)\\s*\\))$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iidexp', \"'_item_' in '_item_ in _collection_' should be an identifier or '(_key_, _value_)' expression, but got '{0}'.\",\n            lhs);\n      }\n      var valueIdentifier = match[3] || match[1];\n      var keyIdentifier = match[2];\n\n      if (aliasAs && (!/^[$a-zA-Z_][$a-zA-Z0-9_]*$/.test(aliasAs) ||\n          /^(null|undefined|this|\\$index|\\$first|\\$middle|\\$last|\\$even|\\$odd|\\$parent|\\$root|\\$id)$/.test(aliasAs))) {\n        throw ngRepeatMinErr('badident', \"alias '{0}' is invalid --- must be a valid JS identifier which is not a reserved name.\",\n          aliasAs);\n      }\n\n      var trackByExpGetter, trackByIdExpFn, trackByIdArrayFn, trackByIdObjFn;\n      var hashFnLocals = {$id: hashKey};\n\n      if (trackByExp) {\n        trackByExpGetter = $parse(trackByExp);\n      } else {\n        trackByIdArrayFn = function(key, value) {\n          return hashKey(value);\n        };\n        trackByIdObjFn = function(key) {\n          return key;\n        };\n      }\n\n      return function ngRepeatLink($scope, $element, $attr, ctrl, $transclude) {\n\n        if (trackByExpGetter) {\n          trackByIdExpFn = function(key, value, index) {\n            // assign key, value, and $index to the locals so that they can be used in hash functions\n            if (keyIdentifier) hashFnLocals[keyIdentifier] = key;\n            hashFnLocals[valueIdentifier] = value;\n            hashFnLocals.$index = index;\n            return trackByExpGetter($scope, hashFnLocals);\n          };\n        }\n\n        // Store a list of elements from previous run. This is a hash where key is the item from the\n        // iterator, and the value is objects with following properties.\n        //   - scope: bound scope\n        //   - element: previous element.\n        //   - index: position\n        //\n        // We are using no-proto object so that we don't need to guard against inherited props via\n        // hasOwnProperty.\n        var lastBlockMap = createMap();\n\n        //watch props\n        $scope.$watchCollection(rhs, function ngRepeatAction(collection) {\n          var index, length,\n              previousNode = $element[0],     // node that cloned nodes should be inserted after\n                                              // initialized to the comment node anchor\n              nextNode,\n              // Same as lastBlockMap but it has the current state. It will become the\n              // lastBlockMap on the next iteration.\n              nextBlockMap = createMap(),\n              collectionLength,\n              key, value, // key/value of iteration\n              trackById,\n              trackByIdFn,\n              collectionKeys,\n              block,       // last object information {scope, element, id}\n              nextBlockOrder,\n              elementsToRemove;\n\n          if (aliasAs) {\n            $scope[aliasAs] = collection;\n          }\n\n          if (isArrayLike(collection)) {\n            collectionKeys = collection;\n            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;\n          } else {\n            trackByIdFn = trackByIdExpFn || trackByIdObjFn;\n            // if object, extract keys, sort them and use to determine order of iteration over obj props\n            collectionKeys = [];\n            for (var itemKey in collection) {\n              if (collection.hasOwnProperty(itemKey) && itemKey.charAt(0) != '$') {\n                collectionKeys.push(itemKey);\n              }\n            }\n            collectionKeys.sort();\n          }\n\n          collectionLength = collectionKeys.length;\n          nextBlockOrder = new Array(collectionLength);\n\n          // locate existing items\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            trackById = trackByIdFn(key, value, index);\n            if (lastBlockMap[trackById]) {\n              // found previously seen block\n              block = lastBlockMap[trackById];\n              delete lastBlockMap[trackById];\n              nextBlockMap[trackById] = block;\n              nextBlockOrder[index] = block;\n            } else if (nextBlockMap[trackById]) {\n              // if collision detected. restore lastBlockMap and throw an error\n              forEach(nextBlockOrder, function(block) {\n                if (block && block.scope) lastBlockMap[block.id] = block;\n              });\n              throw ngRepeatMinErr('dupes',\n                  \"Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}\",\n                  expression, trackById, value);\n            } else {\n              // new never before seen block\n              nextBlockOrder[index] = {id: trackById, scope: undefined, clone: undefined};\n              nextBlockMap[trackById] = true;\n            }\n          }\n\n          // remove leftover items\n          for (var blockKey in lastBlockMap) {\n            block = lastBlockMap[blockKey];\n            elementsToRemove = getBlockNodes(block.clone);\n            $animate.leave(elementsToRemove);\n            if (elementsToRemove[0].parentNode) {\n              // if the element was not removed yet because of pending animation, mark it as deleted\n              // so that we can ignore it later\n              for (index = 0, length = elementsToRemove.length; index < length; index++) {\n                elementsToRemove[index][NG_REMOVED] = true;\n              }\n            }\n            block.scope.$destroy();\n          }\n\n          // we are not using forEach for perf reasons (trying to avoid #call)\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            block = nextBlockOrder[index];\n\n            if (block.scope) {\n              // if we have already seen this object, then we need to reuse the\n              // associated scope/element\n\n              nextNode = previousNode;\n\n              // skip nodes that are already pending removal via leave animation\n              do {\n                nextNode = nextNode.nextSibling;\n              } while (nextNode && nextNode[NG_REMOVED]);\n\n              if (getBlockStart(block) != nextNode) {\n                // existing item which got moved\n                $animate.move(getBlockNodes(block.clone), null, jqLite(previousNode));\n              }\n              previousNode = getBlockEnd(block);\n              updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n            } else {\n              // new item which we don't know about\n              $transclude(function ngRepeatTransclude(clone, scope) {\n                block.scope = scope;\n                // http://jsperf.com/clone-vs-createcomment\n                var endNode = ngRepeatEndComment.cloneNode(false);\n                clone[clone.length++] = endNode;\n\n                // TODO(perf): support naked previousNode in `enter` to avoid creation of jqLite wrapper?\n                $animate.enter(clone, null, jqLite(previousNode));\n                previousNode = endNode;\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block.clone = clone;\n                nextBlockMap[block.id] = block;\n                updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n              });\n            }\n          }\n          lastBlockMap = nextBlockMap;\n        });\n      };\n    }\n  };\n}];\n\nvar NG_HIDE_CLASS = 'ng-hide';\nvar NG_HIDE_IN_PROGRESS_CLASS = 'ng-hide-animate';\n/**\n * @ngdoc directive\n * @name ngShow\n *\n * @description\n * The `ngShow` directive shows or hides the given HTML element based on the expression\n * provided to the `ngShow` attribute. The element is shown or hidden by removing or adding\n * the `.ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined\n * in AngularJS and sets the display style to none (using an !important flag).\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is visible) -->\n * <div ng-show=\"myValue\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is hidden) -->\n * <div ng-show=\"myValue\" class=\"ng-hide\"></div>\n * ```\n *\n * When the `ngShow` expression evaluates to a falsy value then the `.ng-hide` CSS class is added to the class\n * attribute on the element causing it to become hidden. When truthy, the `.ng-hide` CSS class is removed\n * from the element causing the element not to appear hidden.\n *\n * ## Why is !important used?\n *\n * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector\n * can be easily overridden by heavier selectors. For example, something as simple\n * as changing the display style on a HTML list item would make hidden elements appear visible.\n * This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector\n * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the\n * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none!important`. If you wish to change\n * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`\n * class CSS. Note that the selector that needs to be used is actually `.ng-hide:not(.ng-hide-animate)` to cope\n * with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; this is just another form of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the display style.\n *\n * ## A note about animations with `ngShow`\n *\n * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression\n * is true and false. This system works like the animation system present with ngClass except that\n * you must also include the !important flag to override the display property\n * so that you can perform an animation when the element is hidden during the time of the animation.\n *\n * ```css\n * //\n * //a working example can be found at the bottom of this page\n * //\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   /&#42; this is required as of 1.3x to properly\n *      apply all styling in a show/hide animation &#42;/\n *   transition: 0s linear all;\n * }\n *\n * .my-element.ng-hide-add-active,\n * .my-element.ng-hide-remove-active {\n *   /&#42; the transition is defined in the active class &#42;/\n *   transition: 1s linear all;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3.0-beta.11, there is no need to change the display\n * property to block during animation states--ngAnimate will handle the style toggling automatically for you.\n *\n * @animations\n * addClass: `.ng-hide` - happens after the `ngShow` expression evaluates to a truthy value and the just before contents are set to visible\n * removeClass: `.ng-hide` - happens after the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden\n *\n * @element ANY\n * @param {expression} ngShow If the {@link guide/expression expression} is truthy\n *     then the element is shown or hidden respectively.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n      <div>\n        Show:\n        <div class=\"check-element animate-show\" ng-show=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-up\"></span> I show up when your checkbox is checked.\n        </div>\n      </div>\n      <div>\n        Hide:\n        <div class=\"check-element animate-show\" ng-hide=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-down\"></span> I hide when your checkbox is checked.\n        </div>\n      </div>\n    </file>\n    <file name=\"glyphicons.css\">\n      @import url(../../components/bootstrap-3.1.1/css/bootstrap.css);\n    </file>\n    <file name=\"animations.css\">\n      .animate-show {\n        line-height: 20px;\n        opacity: 1;\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n\n      .animate-show.ng-hide-add.ng-hide-add-active,\n      .animate-show.ng-hide-remove.ng-hide-remove-active {\n        -webkit-transition: all linear 0.5s;\n        transition: all linear 0.5s;\n      }\n\n      .animate-show.ng-hide {\n        line-height: 0;\n        opacity: 0;\n        padding: 0 10px;\n      }\n\n      .check-element {\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));\n      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));\n\n      it('should check ng-show / ng-hide', function() {\n        expect(thumbsUp.isDisplayed()).toBeFalsy();\n        expect(thumbsDown.isDisplayed()).toBeTruthy();\n\n        element(by.model('checked')).click();\n\n        expect(thumbsUp.isDisplayed()).toBeTruthy();\n        expect(thumbsDown.isDisplayed()).toBeFalsy();\n      });\n    </file>\n  </example>\n */\nvar ngShowDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngShow, function ngShowWatchAction(value) {\n        // we're adding a temporary, animation-specific class for ng-hide since this way\n        // we can control when the element is actually displayed on screen without having\n        // to have a global/greedy CSS selector that breaks when other animations are run.\n        // Read: https://github.com/angular/angular.js/issues/9103#issuecomment-58335845\n        $animate[value ? 'removeClass' : 'addClass'](element, NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngHide\n *\n * @description\n * The `ngHide` directive shows or hides the given HTML element based on the expression\n * provided to the `ngHide` attribute. The element is shown or hidden by removing or adding\n * the `ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined\n * in AngularJS and sets the display style to none (using an !important flag).\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is hidden) -->\n * <div ng-hide=\"myValue\" class=\"ng-hide\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is visible) -->\n * <div ng-hide=\"myValue\"></div>\n * ```\n *\n * When the `ngHide` expression evaluates to a truthy value then the `.ng-hide` CSS class is added to the class\n * attribute on the element causing it to become hidden. When falsy, the `.ng-hide` CSS class is removed\n * from the element causing the element not to appear hidden.\n *\n * ## Why is !important used?\n *\n * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector\n * can be easily overridden by heavier selectors. For example, something as simple\n * as changing the display style on a HTML list item would make hidden elements appear visible.\n * This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector\n * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the\n * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none!important`. If you wish to change\n * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`\n * class in CSS:\n *\n * ```css\n * .ng-hide {\n *   /&#42; this is just another form of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the display style.\n *\n * ## A note about animations with `ngHide`\n *\n * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression\n * is true and false. This system works like the animation system present with ngClass, except that the `.ng-hide`\n * CSS class is added and removed for you instead of your own CSS class.\n *\n * ```css\n * //\n * //a working example can be found at the bottom of this page\n * //\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: 0.5s linear all;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3.0-beta.11, there is no need to change the display\n * property to block during animation states--ngAnimate will handle the style toggling automatically for you.\n *\n * @animations\n * removeClass: `.ng-hide` - happens after the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden\n * addClass: `.ng-hide` - happens after the `ngHide` expression evaluates to a non truthy value and just before the contents are set to visible\n *\n * @element ANY\n * @param {expression} ngHide If the {@link guide/expression expression} is truthy then\n *     the element is shown or hidden respectively.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\"><br/>\n      <div>\n        Show:\n        <div class=\"check-element animate-hide\" ng-show=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-up\"></span> I show up when your checkbox is checked.\n        </div>\n      </div>\n      <div>\n        Hide:\n        <div class=\"check-element animate-hide\" ng-hide=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-down\"></span> I hide when your checkbox is checked.\n        </div>\n      </div>\n    </file>\n    <file name=\"glyphicons.css\">\n      @import url(../../components/bootstrap-3.1.1/css/bootstrap.css);\n    </file>\n    <file name=\"animations.css\">\n      .animate-hide {\n        -webkit-transition: all linear 0.5s;\n        transition: all linear 0.5s;\n        line-height: 20px;\n        opacity: 1;\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n\n      .animate-hide.ng-hide {\n        line-height: 0;\n        opacity: 0;\n        padding: 0 10px;\n      }\n\n      .check-element {\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));\n      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));\n\n      it('should check ng-show / ng-hide', function() {\n        expect(thumbsUp.isDisplayed()).toBeFalsy();\n        expect(thumbsDown.isDisplayed()).toBeTruthy();\n\n        element(by.model('checked')).click();\n\n        expect(thumbsUp.isDisplayed()).toBeTruthy();\n        expect(thumbsDown.isDisplayed()).toBeFalsy();\n      });\n    </file>\n  </example>\n */\nvar ngHideDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngHide, function ngHideWatchAction(value) {\n        // The comment inside of the ngShowDirective explains why we add and\n        // remove a temporary class for the show/hide animation\n        $animate[value ? 'addClass' : 'removeClass'](element,NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngStyle\n * @restrict AC\n *\n * @description\n * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.\n *\n * @element ANY\n * @param {expression} ngStyle\n *\n * {@link guide/expression Expression} which evals to an\n * object whose keys are CSS style names and values are corresponding values for those CSS\n * keys.\n *\n * Since some CSS style names are not valid keys for an object, they must be quoted.\n * See the 'background-color' style in the example below.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <input type=\"button\" value=\"set color\" ng-click=\"myStyle={color:'red'}\">\n        <input type=\"button\" value=\"set background\" ng-click=\"myStyle={'background-color':'blue'}\">\n        <input type=\"button\" value=\"clear\" ng-click=\"myStyle={}\">\n        <br/>\n        <span ng-style=\"myStyle\">Sample Text</span>\n        <pre>myStyle={{myStyle}}</pre>\n     </file>\n     <file name=\"style.css\">\n       span {\n         color: black;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var colorSpan = element(by.css('span'));\n\n       it('should check ng-style', function() {\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n         element(by.css('input[value=\\'set color\\']')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');\n         element(by.css('input[value=clear]')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n       });\n     </file>\n   </example>\n */\nvar ngStyleDirective = ngDirective(function(scope, element, attr) {\n  scope.$watch(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {\n    if (oldStyles && (newStyles !== oldStyles)) {\n      forEach(oldStyles, function(val, style) { element.css(style, '');});\n    }\n    if (newStyles) element.css(newStyles);\n  }, true);\n});\n\n/**\n * @ngdoc directive\n * @name ngSwitch\n * @restrict EA\n *\n * @description\n * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.\n * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location\n * as specified in the template.\n *\n * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it\n * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element\n * matches the value obtained from the evaluated expression. In other words, you define a container element\n * (where you place the directive), place an expression on the **`on=\"...\"` attribute**\n * (or the **`ng-switch=\"...\"` attribute**), define any inner elements inside of the directive and place\n * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on\n * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default\n * attribute is displayed.\n *\n * <div class=\"alert alert-info\">\n * Be aware that the attribute values to match against cannot be expressions. They are interpreted\n * as literal string values to match against.\n * For example, **`ng-switch-when=\"someVal\"`** will match against the string `\"someVal\"` not against the\n * value of the expression `$scope.someVal`.\n * </div>\n\n * @animations\n * enter - happens after the ngSwitch contents change and the matched child element is placed inside the container\n * leave - happens just after the ngSwitch contents change and just before the former contents are removed from the DOM\n *\n * @usage\n *\n * ```\n * <ANY ng-switch=\"expression\">\n *   <ANY ng-switch-when=\"matchValue1\">...</ANY>\n *   <ANY ng-switch-when=\"matchValue2\">...</ANY>\n *   <ANY ng-switch-default>...</ANY>\n * </ANY>\n * ```\n *\n *\n * @scope\n * @priority 1200\n * @param {*} ngSwitch|on expression to match against <code>ng-switch-when</code>.\n * On child elements add:\n *\n * * `ngSwitchWhen`: the case statement to match against. If match then this\n *   case will be displayed. If the same match appears multiple times, all the\n *   elements will be displayed.\n * * `ngSwitchDefault`: the default case when no other case match. If there\n *   are multiple default cases, all of them will be displayed when no other\n *   case match.\n *\n *\n * @example\n  <example module=\"switchExample\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <select ng-model=\"selection\" ng-options=\"item for item in items\">\n        </select>\n        <code>selection={{selection}}</code>\n        <hr/>\n        <div class=\"animate-switch-container\"\n          ng-switch on=\"selection\">\n            <div class=\"animate-switch\" ng-switch-when=\"settings\">Settings Div</div>\n            <div class=\"animate-switch\" ng-switch-when=\"home\">Home Span</div>\n            <div class=\"animate-switch\" ng-switch-default>default</div>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('switchExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.items = ['settings', 'home', 'other'];\n          $scope.selection = $scope.items[0];\n        }]);\n    </file>\n    <file name=\"animations.css\">\n      .animate-switch-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .animate-switch {\n        padding:10px;\n      }\n\n      .animate-switch.ng-animate {\n        -webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n      }\n\n      .animate-switch.ng-leave.ng-leave-active,\n      .animate-switch.ng-enter {\n        top:-50px;\n      }\n      .animate-switch.ng-leave,\n      .animate-switch.ng-enter.ng-enter-active {\n        top:0;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var switchElem = element(by.css('[ng-switch]'));\n      var select = element(by.model('selection'));\n\n      it('should start in settings', function() {\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should change to home', function() {\n        select.all(by.css('option')).get(1).click();\n        expect(switchElem.getText()).toMatch(/Home Span/);\n      });\n      it('should select default', function() {\n        select.all(by.css('option')).get(2).click();\n        expect(switchElem.getText()).toMatch(/default/);\n      });\n    </file>\n  </example>\n */\nvar ngSwitchDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'EA',\n    require: 'ngSwitch',\n\n    // asks for $scope to fool the BC controller module\n    controller: ['$scope', function ngSwitchController() {\n     this.cases = {};\n    }],\n    link: function(scope, element, attr, ngSwitchController) {\n      var watchExpr = attr.ngSwitch || attr.on,\n          selectedTranscludes = [],\n          selectedElements = [],\n          previousLeaveAnimations = [],\n          selectedScopes = [];\n\n      var spliceFactory = function(array, index) {\n          return function() { array.splice(index, 1); };\n      };\n\n      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {\n        var i, ii;\n        for (i = 0, ii = previousLeaveAnimations.length; i < ii; ++i) {\n          $animate.cancel(previousLeaveAnimations[i]);\n        }\n        previousLeaveAnimations.length = 0;\n\n        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {\n          var selected = getBlockNodes(selectedElements[i].clone);\n          selectedScopes[i].$destroy();\n          var promise = previousLeaveAnimations[i] = $animate.leave(selected);\n          promise.then(spliceFactory(previousLeaveAnimations, i));\n        }\n\n        selectedElements.length = 0;\n        selectedScopes.length = 0;\n\n        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {\n          forEach(selectedTranscludes, function(selectedTransclude) {\n            selectedTransclude.transclude(function(caseElement, selectedScope) {\n              selectedScopes.push(selectedScope);\n              var anchor = selectedTransclude.element;\n              caseElement[caseElement.length++] = document.createComment(' end ngSwitchWhen: ');\n              var block = { clone: caseElement };\n\n              selectedElements.push(block);\n              $animate.enter(caseElement, anchor.parent(), anchor);\n            });\n          });\n        }\n      });\n    }\n  };\n}];\n\nvar ngSwitchWhenDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attrs, ctrl, $transclude) {\n    ctrl.cases['!' + attrs.ngSwitchWhen] = (ctrl.cases['!' + attrs.ngSwitchWhen] || []);\n    ctrl.cases['!' + attrs.ngSwitchWhen].push({ transclude: $transclude, element: element });\n  }\n});\n\nvar ngSwitchDefaultDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attr, ctrl, $transclude) {\n    ctrl.cases['?'] = (ctrl.cases['?'] || []);\n    ctrl.cases['?'].push({ transclude: $transclude, element: element });\n   }\n});\n\n/**\n * @ngdoc directive\n * @name ngTransclude\n * @restrict EAC\n *\n * @description\n * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.\n *\n * Any existing content of the element that this directive is placed on will be removed before the transcluded content is inserted.\n *\n * @element ANY\n *\n * @example\n   <example module=\"transcludeExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('transcludeExample', [])\n          .directive('pane', function(){\n             return {\n               restrict: 'E',\n               transclude: true,\n               scope: { title:'@' },\n               template: '<div style=\"border: 1px solid black;\">' +\n                           '<div style=\"background-color: gray\">{{title}}</div>' +\n                           '<ng-transclude></ng-transclude>' +\n                         '</div>'\n             };\n         })\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.title = 'Lorem Ipsum';\n           $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n         }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input ng-model=\"title\"> <br/>\n         <textarea ng-model=\"text\"></textarea> <br/>\n         <pane title=\"{{title}}\">{{text}}</pane>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        it('should have transcluded', function() {\n          var titleElement = element(by.model('title'));\n          titleElement.clear();\n          titleElement.sendKeys('TITLE');\n          var textElement = element(by.model('text'));\n          textElement.clear();\n          textElement.sendKeys('TEXT');\n          expect(element(by.binding('title')).getText()).toEqual('TITLE');\n          expect(element(by.binding('text')).getText()).toEqual('TEXT');\n        });\n     </file>\n   </example>\n *\n */\nvar ngTranscludeDirective = ngDirective({\n  restrict: 'EAC',\n  link: function($scope, $element, $attrs, controller, $transclude) {\n    if (!$transclude) {\n      throw minErr('ngTransclude')('orphan',\n       'Illegal use of ngTransclude directive in the template! ' +\n       'No parent directive that requires a transclusion found. ' +\n       'Element: {0}',\n       startingTag($element));\n    }\n\n    $transclude(function(clone) {\n      $element.empty();\n      $element.append(clone);\n    });\n  }\n});\n\n/**\n * @ngdoc directive\n * @name script\n * @restrict E\n *\n * @description\n * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the\n * template can be used by {@link ng.directive:ngInclude `ngInclude`},\n * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the\n * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be\n * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.\n *\n * @param {string} type Must be set to `'text/ng-template'`.\n * @param {string} id Cache name of the template.\n *\n * @example\n  <example>\n    <file name=\"index.html\">\n      <script type=\"text/ng-template\" id=\"/tpl.html\">\n        Content of the template.\n      </script>\n\n      <a ng-click=\"currentTpl='/tpl.html'\" id=\"tpl-link\">Load inlined template</a>\n      <div id=\"tpl-content\" ng-include src=\"currentTpl\"></div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should load template defined inside script tag', function() {\n        element(by.css('#tpl-link')).click();\n        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);\n      });\n    </file>\n  </example>\n */\nvar scriptDirective = ['$templateCache', function($templateCache) {\n  return {\n    restrict: 'E',\n    terminal: true,\n    compile: function(element, attr) {\n      if (attr.type == 'text/ng-template') {\n        var templateUrl = attr.id,\n            text = element[0].text;\n\n        $templateCache.put(templateUrl, text);\n      }\n    }\n  };\n}];\n\nvar ngOptionsMinErr = minErr('ngOptions');\n/**\n * @ngdoc directive\n * @name select\n * @restrict E\n *\n * @description\n * HTML `SELECT` element with angular data-binding.\n *\n * # `ngOptions`\n *\n * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`\n * elements for the `<select>` element using the array or object obtained by evaluating the\n * `ngOptions` comprehension expression.\n *\n * In many cases, `ngRepeat` can be used on `<option>` elements instead of `ngOptions` to achieve a\n * similar result. However, `ngOptions` provides some benefits such as reducing memory and\n * increasing speed by not creating a new scope for each repeated instance, as well as providing\n * more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression. `ngOptions` should be used when the `<select>` model needs to be bound\n *  to a non-string value. This is because an option element can only be bound to string values at\n * present.\n *\n * When an item in the `<select>` menu is selected, the array element or object property\n * represented by the selected option will be bound to the model identified by the `ngModel`\n * directive.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** `ngModel` compares by reference, not value. This is important when binding to an\n * array of objects. See an example [in this jsfiddle](http://jsfiddle.net/qWzTb/).\n * </div>\n *\n * ## `select` **`as`**\n *\n * Using `select` **`as`** will bind the result of the `select` expression to the model, but\n * the value of the `<select>` and `<option>` html elements will be either the index (for array data sources)\n * or property name (for object data sources) of the value within the collection. If a **`track by`** expression\n * is used, the result of that expression will be set as the value of the `option` and `select` elements.\n *\n *\n * ### `select` **`as`** and **`track by`**\n *\n * <div class=\"alert alert-warning\">\n * Do not use `select` **`as`** and **`track by`** in the same expression. They are not designed to work together.\n * </div>\n *\n * Consider the following example:\n *\n * ```html\n * <select ng-options=\"item.subItem as item.label for item in values track by item.id\" ng-model=\"selected\">\n * ```\n *\n * ```js\n * $scope.values = [{\n *   id: 1,\n *   label: 'aLabel',\n *   subItem: { name: 'aSubItem' }\n * }, {\n *   id: 2,\n *   label: 'bLabel',\n *   subItem: { name: 'bSubItem' }\n * }];\n *\n * $scope.selected = { name: 'aSubItem' };\n * ```\n *\n * With the purpose of preserving the selection, the **`track by`** expression is always applied to the element\n * of the data source (to `item` in this example). To calculate whether an element is selected, we do the\n * following:\n *\n * 1. Apply **`track by`** to the elements in the array. In the example: `[1, 2]`\n * 2. Apply **`track by`** to the already selected value in `ngModel`.\n *    In the example: this is not possible as **`track by`** refers to `item.id`, but the selected\n *    value from `ngModel` is `{name: 'aSubItem'}`, so the **`track by`** expression is applied to\n *    a wrong object, the selected element can't be found, `<select>` is always reset to the \"not\n *    selected\" option.\n *\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required The control is considered valid only if value is entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {comprehension_expression=} ngOptions in one of the following forms:\n *\n *   * for array data sources:\n *     * `label` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`for`** `value` **`in`** `array` | orderBy:`orderexpr` **`track by`** `trackexpr`\n *        (for including a filter with `track by`)\n *   * for object data sources:\n *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`group by`** `group`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *\n * Where:\n *\n *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.\n *   * `value`: local variable which will refer to each item in the `array` or each property value\n *      of `object` during iteration.\n *   * `key`: local variable which will refer to a property name in `object` during iteration.\n *   * `label`: The result of this expression will be the label for `<option>` element. The\n *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).\n *   * `select`: The result of this expression will be bound to the model of the parent `<select>`\n *      element. If not specified, `select` expression will default to `value`.\n *   * `group`: The result of this expression will be used to group options using the `<optgroup>`\n *      DOM element.\n *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be\n *      used to identify the objects in the array. The `trackexpr` will most likely refer to the\n *     `value` variable (e.g. `value.propertyName`). With this the selection is preserved\n *      even when the options are recreated (e.g. reloaded from the server).\n *\n * @example\n    <example module=\"selectExample\">\n      <file name=\"index.html\">\n        <script>\n        angular.module('selectExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.colors = [\n              {name:'black', shade:'dark'},\n              {name:'white', shade:'light'},\n              {name:'red', shade:'dark'},\n              {name:'blue', shade:'dark'},\n              {name:'yellow', shade:'light'}\n            ];\n            $scope.myColor = $scope.colors[2]; // red\n          }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <ul>\n            <li ng-repeat=\"color in colors\">\n              Name: <input ng-model=\"color.name\">\n              [<a href ng-click=\"colors.splice($index, 1)\">X</a>]\n            </li>\n            <li>\n              [<a href ng-click=\"colors.push({})\">add</a>]\n            </li>\n          </ul>\n          <hr/>\n          Color (null not allowed):\n          <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\"></select><br>\n\n          Color (null allowed):\n          <span  class=\"nullable\">\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\">\n              <option value=\"\">-- choose color --</option>\n            </select>\n          </span><br/>\n\n          Color grouped by shade:\n          <select ng-model=\"myColor\" ng-options=\"color.name group by color.shade for color in colors\">\n          </select><br/>\n\n\n          Select <a href ng-click=\"myColor = { name:'not in list', shade: 'other' }\">bogus</a>.<br>\n          <hr/>\n          Currently selected: {{ {selected_color:myColor} }}\n          <div style=\"border:solid 1px black; height:20px\"\n               ng-style=\"{'background-color':myColor.name}\">\n          </div>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n         it('should check ng-options', function() {\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');\n           element.all(by.model('myColor')).first().click();\n           element.all(by.css('select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');\n           element(by.css('.nullable select[ng-model=\"myColor\"]')).click();\n           element.all(by.css('.nullable select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');\n         });\n      </file>\n    </example>\n */\n\nvar ngOptionsDirective = valueFn({\n  restrict: 'A',\n  terminal: true\n});\n\n// jshint maxlen: false\nvar selectDirective = ['$compile', '$parse', function($compile,   $parse) {\n                         //000011111111110000000000022222222220000000000000000000003333333333000000000000004444444444444440000000005555555555555550000000666666666666666000000000000000777777777700000000000000000008888888888\n  var NG_OPTIONS_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+group\\s+by\\s+([\\s\\S]+?))?\\s+for\\s+(?:([\\$\\w][\\$\\w]*)|(?:\\(\\s*([\\$\\w][\\$\\w]*)\\s*,\\s*([\\$\\w][\\$\\w]*)\\s*\\)))\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?$/,\n      nullModelCtrl = {$setViewValue: noop};\n// jshint maxlen: 100\n\n  return {\n    restrict: 'E',\n    require: ['select', '?ngModel'],\n    controller: ['$element', '$scope', '$attrs', function($element, $scope, $attrs) {\n      var self = this,\n          optionsMap = {},\n          ngModelCtrl = nullModelCtrl,\n          nullOption,\n          unknownOption;\n\n\n      self.databound = $attrs.ngModel;\n\n\n      self.init = function(ngModelCtrl_, nullOption_, unknownOption_) {\n        ngModelCtrl = ngModelCtrl_;\n        nullOption = nullOption_;\n        unknownOption = unknownOption_;\n      };\n\n\n      self.addOption = function(value, element) {\n        assertNotHasOwnProperty(value, '\"option value\"');\n        optionsMap[value] = true;\n\n        if (ngModelCtrl.$viewValue == value) {\n          $element.val(value);\n          if (unknownOption.parent()) unknownOption.remove();\n        }\n        // Workaround for https://code.google.com/p/chromium/issues/detail?id=381459\n        // Adding an <option selected=\"selected\"> element to a <select required=\"required\"> should\n        // automatically select the new element\n        if (element && element[0].hasAttribute('selected')) {\n          element[0].selected = true;\n        }\n      };\n\n\n      self.removeOption = function(value) {\n        if (this.hasOption(value)) {\n          delete optionsMap[value];\n          if (ngModelCtrl.$viewValue === value) {\n            this.renderUnknownOption(value);\n          }\n        }\n      };\n\n\n      self.renderUnknownOption = function(val) {\n        var unknownVal = '? ' + hashKey(val) + ' ?';\n        unknownOption.val(unknownVal);\n        $element.prepend(unknownOption);\n        $element.val(unknownVal);\n        unknownOption.prop('selected', true); // needed for IE\n      };\n\n\n      self.hasOption = function(value) {\n        return optionsMap.hasOwnProperty(value);\n      };\n\n      $scope.$on('$destroy', function() {\n        // disable unknown option so that we don't do work when the whole select is being destroyed\n        self.renderUnknownOption = noop;\n      });\n    }],\n\n    link: function(scope, element, attr, ctrls) {\n      // if ngModel is not defined, we don't need to do anything\n      if (!ctrls[1]) return;\n\n      var selectCtrl = ctrls[0],\n          ngModelCtrl = ctrls[1],\n          multiple = attr.multiple,\n          optionsExp = attr.ngOptions,\n          nullOption = false, // if false, user will not be able to select it (used by ngOptions)\n          emptyOption,\n          renderScheduled = false,\n          // we can't just jqLite('<option>') since jqLite is not smart enough\n          // to create it in <select> and IE barfs otherwise.\n          optionTemplate = jqLite(document.createElement('option')),\n          optGroupTemplate =jqLite(document.createElement('optgroup')),\n          unknownOption = optionTemplate.clone();\n\n      // find \"null\" option\n      for (var i = 0, children = element.children(), ii = children.length; i < ii; i++) {\n        if (children[i].value === '') {\n          emptyOption = nullOption = children.eq(i);\n          break;\n        }\n      }\n\n      selectCtrl.init(ngModelCtrl, nullOption, unknownOption);\n\n      // required validator\n      if (multiple) {\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n      }\n\n      if (optionsExp) setupAsOptions(scope, element, ngModelCtrl);\n      else if (multiple) setupAsMultiple(scope, element, ngModelCtrl);\n      else setupAsSingle(scope, element, ngModelCtrl, selectCtrl);\n\n\n      ////////////////////////////\n\n\n\n      function setupAsSingle(scope, selectElement, ngModelCtrl, selectCtrl) {\n        ngModelCtrl.$render = function() {\n          var viewValue = ngModelCtrl.$viewValue;\n\n          if (selectCtrl.hasOption(viewValue)) {\n            if (unknownOption.parent()) unknownOption.remove();\n            selectElement.val(viewValue);\n            if (viewValue === '') emptyOption.prop('selected', true); // to make IE9 happy\n          } else {\n            if (viewValue == null && emptyOption) {\n              selectElement.val('');\n            } else {\n              selectCtrl.renderUnknownOption(viewValue);\n            }\n          }\n        };\n\n        selectElement.on('change', function() {\n          scope.$apply(function() {\n            if (unknownOption.parent()) unknownOption.remove();\n            ngModelCtrl.$setViewValue(selectElement.val());\n          });\n        });\n      }\n\n      function setupAsMultiple(scope, selectElement, ctrl) {\n        var lastView;\n        ctrl.$render = function() {\n          var items = new HashMap(ctrl.$viewValue);\n          forEach(selectElement.find('option'), function(option) {\n            option.selected = isDefined(items.get(option.value));\n          });\n        };\n\n        // we have to do it on each watch since ngModel watches reference, but\n        // we need to work of an array, so we need to see if anything was inserted/removed\n        scope.$watch(function selectMultipleWatch() {\n          if (!equals(lastView, ctrl.$viewValue)) {\n            lastView = shallowCopy(ctrl.$viewValue);\n            ctrl.$render();\n          }\n        });\n\n        selectElement.on('change', function() {\n          scope.$apply(function() {\n            var array = [];\n            forEach(selectElement.find('option'), function(option) {\n              if (option.selected) {\n                array.push(option.value);\n              }\n            });\n            ctrl.$setViewValue(array);\n          });\n        });\n      }\n\n      function setupAsOptions(scope, selectElement, ctrl) {\n        var match;\n\n        if (!(match = optionsExp.match(NG_OPTIONS_REGEXP))) {\n          throw ngOptionsMinErr('iexp',\n            \"Expected expression in form of \" +\n            \"'_select_ (as _label_)? for (_key_,)?_value_ in _collection_'\" +\n            \" but got '{0}'. Element: {1}\",\n            optionsExp, startingTag(selectElement));\n        }\n\n        var displayFn = $parse(match[2] || match[1]),\n            valueName = match[4] || match[6],\n            selectAs = / as /.test(match[0]) && match[1],\n            selectAsFn = selectAs ? $parse(selectAs) : null,\n            keyName = match[5],\n            groupByFn = $parse(match[3] || ''),\n            valueFn = $parse(match[2] ? match[1] : valueName),\n            valuesFn = $parse(match[7]),\n            track = match[8],\n            trackFn = track ? $parse(match[8]) : null,\n            trackKeysCache = {},\n            // This is an array of array of existing option groups in DOM.\n            // We try to reuse these if possible\n            // - optionGroupsCache[0] is the options with no option group\n            // - optionGroupsCache[?][0] is the parent: either the SELECT or OPTGROUP element\n            optionGroupsCache = [[{element: selectElement, label:''}]],\n            //re-usable object to represent option's locals\n            locals = {};\n\n        if (nullOption) {\n          // compile the element since there might be bindings in it\n          $compile(nullOption)(scope);\n\n          // remove the class, which is added automatically because we recompile the element and it\n          // becomes the compilation root\n          nullOption.removeClass('ng-scope');\n\n          // we need to remove it before calling selectElement.empty() because otherwise IE will\n          // remove the label from the element. wtf?\n          nullOption.remove();\n        }\n\n        // clear contents, we'll add what's needed based on the model\n        selectElement.empty();\n\n        selectElement.on('change', selectionChanged);\n\n        ctrl.$render = render;\n\n        scope.$watchCollection(valuesFn, scheduleRendering);\n        scope.$watchCollection(getLabels, scheduleRendering);\n\n        if (multiple) {\n          scope.$watchCollection(function() { return ctrl.$modelValue; }, scheduleRendering);\n        }\n\n        // ------------------------------------------------------------------ //\n\n        function callExpression(exprFn, key, value) {\n          locals[valueName] = value;\n          if (keyName) locals[keyName] = key;\n          return exprFn(scope, locals);\n        }\n\n        function selectionChanged() {\n          scope.$apply(function() {\n            var collection = valuesFn(scope) || [];\n            var viewValue;\n            if (multiple) {\n              viewValue = [];\n              forEach(selectElement.val(), function(selectedKey) {\n                  selectedKey = trackFn ? trackKeysCache[selectedKey] : selectedKey;\n                viewValue.push(getViewValue(selectedKey, collection[selectedKey]));\n              });\n            } else {\n              var selectedKey = trackFn ? trackKeysCache[selectElement.val()] : selectElement.val();\n              viewValue = getViewValue(selectedKey, collection[selectedKey]);\n            }\n            ctrl.$setViewValue(viewValue);\n            render();\n          });\n        }\n\n        function getViewValue(key, value) {\n          if (key === '?') {\n            return undefined;\n          } else if (key === '') {\n            return null;\n          } else {\n            var viewValueFn = selectAsFn ? selectAsFn : valueFn;\n            return callExpression(viewValueFn, key, value);\n          }\n        }\n\n        function getLabels() {\n          var values = valuesFn(scope);\n          var toDisplay;\n          if (values && isArray(values)) {\n            toDisplay = new Array(values.length);\n            for (var i = 0, ii = values.length; i < ii; i++) {\n              toDisplay[i] = callExpression(displayFn, i, values[i]);\n            }\n            return toDisplay;\n          } else if (values) {\n            // TODO: Add a test for this case\n            toDisplay = {};\n            for (var prop in values) {\n              if (values.hasOwnProperty(prop)) {\n                toDisplay[prop] = callExpression(displayFn, prop, values[prop]);\n              }\n            }\n          }\n          return toDisplay;\n        }\n\n        function createIsSelectedFn(viewValue) {\n          var selectedSet;\n          if (multiple) {\n            if (trackFn && isArray(viewValue)) {\n\n              selectedSet = new HashMap([]);\n              for (var trackIndex = 0; trackIndex < viewValue.length; trackIndex++) {\n                // tracking by key\n                selectedSet.put(callExpression(trackFn, null, viewValue[trackIndex]), true);\n              }\n            } else {\n              selectedSet = new HashMap(viewValue);\n            }\n          } else if (trackFn) {\n            viewValue = callExpression(trackFn, null, viewValue);\n          }\n\n          return function isSelected(key, value) {\n            var compareValueFn;\n            if (trackFn) {\n              compareValueFn = trackFn;\n            } else if (selectAsFn) {\n              compareValueFn = selectAsFn;\n            } else {\n              compareValueFn = valueFn;\n            }\n\n            if (multiple) {\n              return isDefined(selectedSet.remove(callExpression(compareValueFn, key, value)));\n            } else {\n              return viewValue === callExpression(compareValueFn, key, value);\n            }\n          };\n        }\n\n        function scheduleRendering() {\n          if (!renderScheduled) {\n            scope.$$postDigest(render);\n            renderScheduled = true;\n          }\n        }\n\n        /**\n         * A new labelMap is created with each render.\n         * This function is called for each existing option with added=false,\n         * and each new option with added=true.\n         * - Labels that are passed to this method twice,\n         * (once with added=true and once with added=false) will end up with a value of 0, and\n         * will cause no change to happen to the corresponding option.\n         * - Labels that are passed to this method only once with added=false will end up with a\n         * value of -1 and will eventually be passed to selectCtrl.removeOption()\n         * - Labels that are passed to this method only once with added=true will end up with a\n         * value of 1 and will eventually be passed to selectCtrl.addOption()\n        */\n        function updateLabelMap(labelMap, label, added) {\n          labelMap[label] = labelMap[label] || 0;\n          labelMap[label] += (added ? 1 : -1);\n        }\n\n        function render() {\n          renderScheduled = false;\n\n          // Temporary location for the option groups before we render them\n          var optionGroups = {'':[]},\n              optionGroupNames = [''],\n              optionGroupName,\n              optionGroup,\n              option,\n              existingParent, existingOptions, existingOption,\n              viewValue = ctrl.$viewValue,\n              values = valuesFn(scope) || [],\n              keys = keyName ? sortedKeys(values) : values,\n              key,\n              value,\n              groupLength, length,\n              groupIndex, index,\n              labelMap = {},\n              selected,\n              isSelected = createIsSelectedFn(viewValue),\n              anySelected = false,\n              lastElement,\n              element,\n              label,\n              optionId;\n\n          trackKeysCache = {};\n\n          // We now build up the list of options we need (we merge later)\n          for (index = 0; length = keys.length, index < length; index++) {\n            key = index;\n            if (keyName) {\n              key = keys[index];\n              if (key.charAt(0) === '$') continue;\n            }\n            value = values[key];\n\n            optionGroupName = callExpression(groupByFn, key, value) || '';\n            if (!(optionGroup = optionGroups[optionGroupName])) {\n              optionGroup = optionGroups[optionGroupName] = [];\n              optionGroupNames.push(optionGroupName);\n            }\n\n            selected = isSelected(key, value);\n            anySelected = anySelected || selected;\n\n            label = callExpression(displayFn, key, value); // what will be seen by the user\n\n            // doing displayFn(scope, locals) || '' overwrites zero values\n            label = isDefined(label) ? label : '';\n            optionId = trackFn ? trackFn(scope, locals) : (keyName ? keys[index] : index);\n            if (trackFn) {\n              trackKeysCache[optionId] = key;\n            }\n\n            optionGroup.push({\n              // either the index into array or key from object\n              id: optionId,\n              label: label,\n              selected: selected                   // determine if we should be selected\n            });\n          }\n          if (!multiple) {\n            if (nullOption || viewValue === null) {\n              // insert null option if we have a placeholder, or the model is null\n              optionGroups[''].unshift({id:'', label:'', selected:!anySelected});\n            } else if (!anySelected) {\n              // option could not be found, we have to insert the undefined item\n              optionGroups[''].unshift({id:'?', label:'', selected:true});\n            }\n          }\n\n          // Now we need to update the list of DOM nodes to match the optionGroups we computed above\n          for (groupIndex = 0, groupLength = optionGroupNames.length;\n               groupIndex < groupLength;\n               groupIndex++) {\n            // current option group name or '' if no group\n            optionGroupName = optionGroupNames[groupIndex];\n\n            // list of options for that group. (first item has the parent)\n            optionGroup = optionGroups[optionGroupName];\n\n            if (optionGroupsCache.length <= groupIndex) {\n              // we need to grow the optionGroups\n              existingParent = {\n                element: optGroupTemplate.clone().attr('label', optionGroupName),\n                label: optionGroup.label\n              };\n              existingOptions = [existingParent];\n              optionGroupsCache.push(existingOptions);\n              selectElement.append(existingParent.element);\n            } else {\n              existingOptions = optionGroupsCache[groupIndex];\n              existingParent = existingOptions[0];  // either SELECT (no group) or OPTGROUP element\n\n              // update the OPTGROUP label if not the same.\n              if (existingParent.label != optionGroupName) {\n                existingParent.element.attr('label', existingParent.label = optionGroupName);\n              }\n            }\n\n            lastElement = null;  // start at the beginning\n            for (index = 0, length = optionGroup.length; index < length; index++) {\n              option = optionGroup[index];\n              if ((existingOption = existingOptions[index + 1])) {\n                // reuse elements\n                lastElement = existingOption.element;\n                if (existingOption.label !== option.label) {\n                  updateLabelMap(labelMap, existingOption.label, false);\n                  updateLabelMap(labelMap, option.label, true);\n                  lastElement.text(existingOption.label = option.label);\n                  lastElement.prop('label', existingOption.label);\n                }\n                if (existingOption.id !== option.id) {\n                  lastElement.val(existingOption.id = option.id);\n                }\n                // lastElement.prop('selected') provided by jQuery has side-effects\n                if (lastElement[0].selected !== option.selected) {\n                  lastElement.prop('selected', (existingOption.selected = option.selected));\n                  if (msie) {\n                    // See #7692\n                    // The selected item wouldn't visually update on IE without this.\n                    // Tested on Win7: IE9, IE10 and IE11. Future IEs should be tested as well\n                    lastElement.prop('selected', existingOption.selected);\n                  }\n                }\n              } else {\n                // grow elements\n\n                // if it's a null option\n                if (option.id === '' && nullOption) {\n                  // put back the pre-compiled element\n                  element = nullOption;\n                } else {\n                  // jQuery(v1.4.2) Bug: We should be able to chain the method calls, but\n                  // in this version of jQuery on some browser the .text() returns a string\n                  // rather then the element.\n                  (element = optionTemplate.clone())\n                      .val(option.id)\n                      .prop('selected', option.selected)\n                      .attr('selected', option.selected)\n                      .prop('label', option.label)\n                      .text(option.label);\n                }\n\n                existingOptions.push(existingOption = {\n                    element: element,\n                    label: option.label,\n                    id: option.id,\n                    selected: option.selected\n                });\n                updateLabelMap(labelMap, option.label, true);\n                if (lastElement) {\n                  lastElement.after(element);\n                } else {\n                  existingParent.element.append(element);\n                }\n                lastElement = element;\n              }\n            }\n            // remove any excessive OPTIONs in a group\n            index++; // increment since the existingOptions[0] is parent element not OPTION\n            while (existingOptions.length > index) {\n              option = existingOptions.pop();\n              updateLabelMap(labelMap, option.label, false);\n              option.element.remove();\n            }\n          }\n          // remove any excessive OPTGROUPs from select\n          while (optionGroupsCache.length > groupIndex) {\n            // remove all the labels in the option group\n            optionGroup = optionGroupsCache.pop();\n            for (index = 1; index < optionGroup.length; ++index) {\n              updateLabelMap(labelMap, optionGroup[index].label, false);\n            }\n            optionGroup[0].element.remove();\n          }\n          forEach(labelMap, function(count, label) {\n            if (count > 0) {\n              selectCtrl.addOption(label);\n            } else if (count < 0) {\n              selectCtrl.removeOption(label);\n            }\n          });\n        }\n      }\n    }\n  };\n}];\n\nvar optionDirective = ['$interpolate', function($interpolate) {\n  var nullSelectCtrl = {\n    addOption: noop,\n    removeOption: noop\n  };\n\n  return {\n    restrict: 'E',\n    priority: 100,\n    compile: function(element, attr) {\n      if (isUndefined(attr.value)) {\n        var interpolateFn = $interpolate(element.text(), true);\n        if (!interpolateFn) {\n          attr.$set('value', element.text());\n        }\n      }\n\n      return function(scope, element, attr) {\n        var selectCtrlName = '$selectController',\n            parent = element.parent(),\n            selectCtrl = parent.data(selectCtrlName) ||\n              parent.parent().data(selectCtrlName); // in case we are in optgroup\n\n        if (!selectCtrl || !selectCtrl.databound) {\n          selectCtrl = nullSelectCtrl;\n        }\n\n        if (interpolateFn) {\n          scope.$watch(interpolateFn, function interpolateWatchAction(newVal, oldVal) {\n            attr.$set('value', newVal);\n            if (oldVal !== newVal) {\n              selectCtrl.removeOption(oldVal);\n            }\n            selectCtrl.addOption(newVal, element);\n          });\n        } else {\n          selectCtrl.addOption(attr.value, element);\n        }\n\n        element.on('$destroy', function() {\n          selectCtrl.removeOption(attr.value);\n        });\n      };\n    }\n  };\n}];\n\nvar styleDirective = valueFn({\n  restrict: 'E',\n  terminal: false\n});\n\nvar requiredDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n      attr.required = true; // force truthy in case we are on non input element\n\n      ctrl.$validators.required = function(modelValue, viewValue) {\n        return !attr.required || !ctrl.$isEmpty(viewValue);\n      };\n\n      attr.$observe('required', function() {\n        ctrl.$validate();\n      });\n    }\n  };\n};\n\n\nvar patternDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var regexp, patternExp = attr.ngPattern || attr.pattern;\n      attr.$observe('pattern', function(regex) {\n        if (isString(regex) && regex.length > 0) {\n          regex = new RegExp('^' + regex + '$');\n        }\n\n        if (regex && !regex.test) {\n          throw minErr('ngPattern')('noregexp',\n            'Expected {0} to be a RegExp but was {1}. Element: {2}', patternExp,\n            regex, startingTag(elm));\n        }\n\n        regexp = regex || undefined;\n        ctrl.$validate();\n      });\n\n      ctrl.$validators.pattern = function(modelValue, viewValue) {\n        // HTML5 pattern constraint validates the input value, so we validate the viewValue\n        return ctrl.$isEmpty(viewValue) || isUndefined(regexp) || regexp.test(viewValue);\n      };\n    }\n  };\n};\n\n\nvar maxlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var maxlength = -1;\n      attr.$observe('maxlength', function(value) {\n        var intVal = int(value);\n        maxlength = isNaN(intVal) ? -1 : intVal;\n        ctrl.$validate();\n      });\n      ctrl.$validators.maxlength = function(modelValue, viewValue) {\n        return (maxlength < 0) || ctrl.$isEmpty(viewValue) || (viewValue.length <= maxlength);\n      };\n    }\n  };\n};\n\nvar minlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var minlength = 0;\n      attr.$observe('minlength', function(value) {\n        minlength = int(value) || 0;\n        ctrl.$validate();\n      });\n      ctrl.$validators.minlength = function(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || viewValue.length >= minlength;\n      };\n    }\n  };\n};\n\n  if (window.angular.bootstrap) {\n    //AngularJS is already loaded, so we can return here...\n    console.log('WARNING: Tried to load angular more than once.');\n    return;\n  }\n\n  //try to bind to jquery now so that one can write jqLite(document).ready()\n  //but we will rebind on bootstrap again.\n  bindJQuery();\n\n  publishExternalAPI(angular);\n\n  jqLite(document).ready(function() {\n    angularInit(document, bootstrap);\n  });\n\n})(window, document);\n\n!window.angular.$$csp() && window.angular.element(document.head).prepend('<style type=\"text/css\">@charset \"UTF-8\";[ng\\\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\\\:form{display:block;}</style>');"
  },
  {
    "path": "test/angular/1.4/angular-animate.js",
    "content": "/**\n * @license AngularJS v1.4.14\n * (c) 2010-2015 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular, undefined) {'use strict';\n\n/* jshint ignore:start */\nvar noop        = angular.noop;\nvar copy        = angular.copy;\nvar extend      = angular.extend;\nvar jqLite      = angular.element;\nvar forEach     = angular.forEach;\nvar isArray     = angular.isArray;\nvar isString    = angular.isString;\nvar isObject    = angular.isObject;\nvar isUndefined = angular.isUndefined;\nvar isDefined   = angular.isDefined;\nvar isFunction  = angular.isFunction;\nvar isElement   = angular.isElement;\n\nvar ELEMENT_NODE = 1;\nvar COMMENT_NODE = 8;\n\nvar ADD_CLASS_SUFFIX = '-add';\nvar REMOVE_CLASS_SUFFIX = '-remove';\nvar EVENT_CLASS_PREFIX = 'ng-';\nvar ACTIVE_CLASS_SUFFIX = '-active';\nvar PREPARE_CLASS_SUFFIX = '-prepare';\n\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\nvar NG_ANIMATE_CHILDREN_DATA = '$$ngAnimateChildren';\n\n// Detect proper transitionend/animationend event names.\nvar CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;\n\n// If unprefixed events are not supported but webkit-prefixed are, use the latter.\n// Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.\n// Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`\n// but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.\n// Register both events in case `window.onanimationend` is not supported because of that,\n// do the same for `transitionend` as Safari is likely to exhibit similar behavior.\n// Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit\n// therefore there is no reason to test anymore for other vendor prefixes:\n// http://caniuse.com/#search=transition\nif (isUndefined(window.ontransitionend) && isDefined(window.onwebkittransitionend)) {\n  CSS_PREFIX = '-webkit-';\n  TRANSITION_PROP = 'WebkitTransition';\n  TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';\n} else {\n  TRANSITION_PROP = 'transition';\n  TRANSITIONEND_EVENT = 'transitionend';\n}\n\nif (isUndefined(window.onanimationend) && isDefined(window.onwebkitanimationend)) {\n  CSS_PREFIX = '-webkit-';\n  ANIMATION_PROP = 'WebkitAnimation';\n  ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';\n} else {\n  ANIMATION_PROP = 'animation';\n  ANIMATIONEND_EVENT = 'animationend';\n}\n\nvar DURATION_KEY = 'Duration';\nvar PROPERTY_KEY = 'Property';\nvar DELAY_KEY = 'Delay';\nvar TIMING_KEY = 'TimingFunction';\nvar ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';\nvar ANIMATION_PLAYSTATE_KEY = 'PlayState';\nvar SAFE_FAST_FORWARD_DURATION_VALUE = 9999;\n\nvar ANIMATION_DELAY_PROP = ANIMATION_PROP + DELAY_KEY;\nvar ANIMATION_DURATION_PROP = ANIMATION_PROP + DURATION_KEY;\nvar TRANSITION_DELAY_PROP = TRANSITION_PROP + DELAY_KEY;\nvar TRANSITION_DURATION_PROP = TRANSITION_PROP + DURATION_KEY;\n\nvar isPromiseLike = function(p) {\n  return p && p.then ? true : false;\n};\n\nvar ngMinErr = angular.$$minErr('ng');\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', \"Argument '{0}' is {1}\", (name || '?'), (reason || \"required\"));\n  }\n  return arg;\n}\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction packageStyles(options) {\n  var styles = {};\n  if (options && (options.to || options.from)) {\n    styles.to = options.to;\n    styles.from = options.from;\n  }\n  return styles;\n}\n\nfunction pendClasses(classes, fix, isPrefix) {\n  var className = '';\n  classes = isArray(classes)\n      ? classes\n      : classes && isString(classes) && classes.length\n          ? classes.split(/\\s+/)\n          : [];\n  forEach(classes, function(klass, i) {\n    if (klass && klass.length > 0) {\n      className += (i > 0) ? ' ' : '';\n      className += isPrefix ? fix + klass\n                            : klass + fix;\n    }\n  });\n  return className;\n}\n\nfunction removeFromArray(arr, val) {\n  var index = arr.indexOf(val);\n  if (val >= 0) {\n    arr.splice(index, 1);\n  }\n}\n\nfunction stripCommentsFromElement(element) {\n  if (element instanceof jqLite) {\n    switch (element.length) {\n      case 0:\n        return element;\n        break;\n\n      case 1:\n        // there is no point of stripping anything if the element\n        // is the only element within the jqLite wrapper.\n        // (it's important that we retain the element instance.)\n        if (element[0].nodeType === ELEMENT_NODE) {\n          return element;\n        }\n        break;\n\n      default:\n        return jqLite(extractElementNode(element));\n        break;\n    }\n  }\n\n  if (element.nodeType === ELEMENT_NODE) {\n    return jqLite(element);\n  }\n}\n\nfunction extractElementNode(element) {\n  if (!element[0]) return element;\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType == ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction $$addClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.addClass(elm, className);\n  });\n}\n\nfunction $$removeClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.removeClass(elm, className);\n  });\n}\n\nfunction applyAnimationClassesFactory($$jqLite) {\n  return function(element, options) {\n    if (options.addClass) {\n      $$addClass($$jqLite, element, options.addClass);\n      options.addClass = null;\n    }\n    if (options.removeClass) {\n      $$removeClass($$jqLite, element, options.removeClass);\n      options.removeClass = null;\n    }\n  }\n}\n\nfunction prepareAnimationOptions(options) {\n  options = options || {};\n  if (!options.$$prepared) {\n    var domOperation = options.domOperation || noop;\n    options.domOperation = function() {\n      options.$$domOperationFired = true;\n      domOperation();\n      domOperation = noop;\n    };\n    options.$$prepared = true;\n  }\n  return options;\n}\n\nfunction applyAnimationStyles(element, options) {\n  applyAnimationFromStyles(element, options);\n  applyAnimationToStyles(element, options);\n}\n\nfunction applyAnimationFromStyles(element, options) {\n  if (options.from) {\n    element.css(options.from);\n    options.from = null;\n  }\n}\n\nfunction applyAnimationToStyles(element, options) {\n  if (options.to) {\n    element.css(options.to);\n    options.to = null;\n  }\n}\n\nfunction mergeAnimationDetails(element, oldAnimation, newAnimation) {\n  var target = oldAnimation.options || {};\n  var newOptions = newAnimation.options || {};\n\n  var toAdd = (target.addClass || '') + ' ' + (newOptions.addClass || '');\n  var toRemove = (target.removeClass || '') + ' ' + (newOptions.removeClass || '');\n  var classes = resolveElementClasses(element.attr('class'), toAdd, toRemove);\n\n  if (newOptions.preparationClasses) {\n    target.preparationClasses = concatWithSpace(newOptions.preparationClasses, target.preparationClasses);\n    delete newOptions.preparationClasses;\n  }\n\n  // noop is basically when there is no callback; otherwise something has been set\n  var realDomOperation = target.domOperation !== noop ? target.domOperation : null;\n\n  extend(target, newOptions);\n\n  // TODO(matsko or sreeramu): proper fix is to maintain all animation callback in array and call at last,but now only leave has the callback so no issue with this.\n  if (realDomOperation) {\n    target.domOperation = realDomOperation;\n  }\n\n  if (classes.addClass) {\n    target.addClass = classes.addClass;\n  } else {\n    target.addClass = null;\n  }\n\n  if (classes.removeClass) {\n    target.removeClass = classes.removeClass;\n  } else {\n    target.removeClass = null;\n  }\n\n  oldAnimation.addClass = target.addClass;\n  oldAnimation.removeClass = target.removeClass;\n\n  return target;\n}\n\nfunction resolveElementClasses(existing, toAdd, toRemove) {\n  var ADD_CLASS = 1;\n  var REMOVE_CLASS = -1;\n\n  var flags = {};\n  existing = splitClassesToLookup(existing);\n\n  toAdd = splitClassesToLookup(toAdd);\n  forEach(toAdd, function(value, key) {\n    flags[key] = ADD_CLASS;\n  });\n\n  toRemove = splitClassesToLookup(toRemove);\n  forEach(toRemove, function(value, key) {\n    flags[key] = flags[key] === ADD_CLASS ? null : REMOVE_CLASS;\n  });\n\n  var classes = {\n    addClass: '',\n    removeClass: ''\n  };\n\n  forEach(flags, function(val, klass) {\n    var prop, allow;\n    if (val === ADD_CLASS) {\n      prop = 'addClass';\n      allow = !existing[klass];\n    } else if (val === REMOVE_CLASS) {\n      prop = 'removeClass';\n      allow = existing[klass];\n    }\n    if (allow) {\n      if (classes[prop].length) {\n        classes[prop] += ' ';\n      }\n      classes[prop] += klass;\n    }\n  });\n\n  function splitClassesToLookup(classes) {\n    if (isString(classes)) {\n      classes = classes.split(' ');\n    }\n\n    var obj = {};\n    forEach(classes, function(klass) {\n      // sometimes the split leaves empty string values\n      // incase extra spaces were applied to the options\n      if (klass.length) {\n        obj[klass] = true;\n      }\n    });\n    return obj;\n  }\n\n  return classes;\n}\n\nfunction getDomNode(element) {\n  return (element instanceof angular.element) ? element[0] : element;\n}\n\nfunction applyGeneratedPreparationClasses(element, event, options) {\n  var classes = '';\n  if (event) {\n    classes = pendClasses(event, EVENT_CLASS_PREFIX, true);\n  }\n  if (options.addClass) {\n    classes = concatWithSpace(classes, pendClasses(options.addClass, ADD_CLASS_SUFFIX));\n  }\n  if (options.removeClass) {\n    classes = concatWithSpace(classes, pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX));\n  }\n  if (classes.length) {\n    options.preparationClasses = classes;\n    element.addClass(classes);\n  }\n}\n\nfunction clearGeneratedClasses(element, options) {\n  if (options.preparationClasses) {\n    element.removeClass(options.preparationClasses);\n    options.preparationClasses = null;\n  }\n  if (options.activeClasses) {\n    element.removeClass(options.activeClasses);\n    options.activeClasses = null;\n  }\n}\n\nfunction blockTransitions(node, duration) {\n  // we use a negative delay value since it performs blocking\n  // yet it doesn't kill any existing transitions running on the\n  // same element which makes this safe for class-based animations\n  var value = duration ? '-' + duration + 's' : '';\n  applyInlineStyle(node, [TRANSITION_DELAY_PROP, value]);\n  return [TRANSITION_DELAY_PROP, value];\n}\n\nfunction blockKeyframeAnimations(node, applyBlock) {\n  var value = applyBlock ? 'paused' : '';\n  var key = ANIMATION_PROP + ANIMATION_PLAYSTATE_KEY;\n  applyInlineStyle(node, [key, value]);\n  return [key, value];\n}\n\nfunction applyInlineStyle(node, styleTuple) {\n  var prop = styleTuple[0];\n  var value = styleTuple[1];\n  node.style[prop] = value;\n}\n\nfunction concatWithSpace(a,b) {\n  if (!a) return b;\n  if (!b) return a;\n  return a + ' ' + b;\n}\n\nvar $$rAFSchedulerFactory = ['$$rAF', function($$rAF) {\n  var queue, cancelFn;\n\n  function scheduler(tasks) {\n    // we make a copy since RAFScheduler mutates the state\n    // of the passed in array variable and this would be difficult\n    // to track down on the outside code\n    queue = queue.concat(tasks);\n    nextTick();\n  }\n\n  queue = scheduler.queue = [];\n\n  /* waitUntilQuiet does two things:\n   * 1. It will run the FINAL `fn` value only when an uncancelled RAF has passed through\n   * 2. It will delay the next wave of tasks from running until the quiet `fn` has run.\n   *\n   * The motivation here is that animation code can request more time from the scheduler\n   * before the next wave runs. This allows for certain DOM properties such as classes to\n   * be resolved in time for the next animation to run.\n   */\n  scheduler.waitUntilQuiet = function(fn) {\n    if (cancelFn) cancelFn();\n\n    cancelFn = $$rAF(function() {\n      cancelFn = null;\n      fn();\n      nextTick();\n    });\n  };\n\n  return scheduler;\n\n  function nextTick() {\n    if (!queue.length) return;\n\n    var items = queue.shift();\n    for (var i = 0; i < items.length; i++) {\n      items[i]();\n    }\n\n    if (!cancelFn) {\n      $$rAF(function() {\n        if (!cancelFn) nextTick();\n      });\n    }\n  }\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateChildren\n * @restrict AE\n * @element ANY\n *\n * @description\n *\n * ngAnimateChildren allows you to specify that children of this element should animate even if any\n * of the children's parents are currently animating. By default, when an element has an active `enter`, `leave`, or `move`\n * (structural) animation, child elements that also have an active structural animation are not animated.\n *\n * Note that even if `ngAnimteChildren` is set, no child animations will run when the parent element is removed from the DOM (`leave` animation).\n *\n *\n * @param {string} ngAnimateChildren If the value is empty, `true` or `on`,\n *     then child animations are allowed. If the value is `false`, child animations are not allowed.\n *\n * @example\n * <example module=\"ngAnimateChildren\" name=\"ngAnimateChildren\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n       <div ng-controller=\"mainController as main\">\n         <label>Show container? <input type=\"checkbox\" ng-model=\"main.enterElement\" /></label>\n         <label>Animate children? <input type=\"checkbox\" ng-model=\"main.animateChildren\" /></label>\n         <hr>\n         <div ng-animate-children=\"{{main.animateChildren}}\">\n           <div ng-if=\"main.enterElement\" class=\"container\">\n             List of items:\n             <div ng-repeat=\"item in [0, 1, 2, 3]\" class=\"item\">Item {{item}}</div>\n           </div>\n         </div>\n       </div>\n     </file>\n     <file name=\"animations.css\">\n\n      .container.ng-enter,\n      .container.ng-leave {\n        transition: all ease 1.5s;\n      }\n\n      .container.ng-enter,\n      .container.ng-leave-active {\n        opacity: 0;\n      }\n\n      .container.ng-leave,\n      .container.ng-enter-active {\n        opacity: 1;\n      }\n\n      .item {\n        background: firebrick;\n        color: #FFF;\n        margin-bottom: 10px;\n      }\n\n      .item.ng-enter,\n      .item.ng-leave {\n        transition: transform 1.5s ease;\n      }\n\n      .item.ng-enter {\n        transform: translateX(50px);\n      }\n\n      .item.ng-enter-active {\n        transform: translateX(0);\n      }\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngAnimateChildren', ['ngAnimate'])\n        .controller('mainController', function() {\n          this.animateChildren = false;\n          this.enterElement = false;\n        });\n    </file>\n  </example>\n */\nvar $$AnimateChildrenDirective = ['$interpolate', function($interpolate) {\n  return {\n    link: function(scope, element, attrs) {\n      var val = attrs.ngAnimateChildren;\n      if (angular.isString(val) && val.length === 0) { //empty attribute\n        element.data(NG_ANIMATE_CHILDREN_DATA, true);\n      } else {\n        // Interpolate and set the value, so that it is available to\n        // animations that run right after compilation\n        setData($interpolate(val)(scope));\n        attrs.$observe('ngAnimateChildren', setData);\n      }\n\n      function setData(value) {\n        value = value === 'on' || value === 'true';\n        element.data(NG_ANIMATE_CHILDREN_DATA, value);\n      }\n    }\n  };\n}];\n\nvar ANIMATE_TIMER_KEY = '$$animateCss';\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n *\n * @description\n * The `$animateCss` service is a useful utility to trigger customized CSS-based transitions/keyframes\n * from a JavaScript-based animation or directly from a directive. The purpose of `$animateCss` is NOT\n * to side-step how `$animate` and ngAnimate work, but the goal is to allow pre-existing animations or\n * directives to create more complex animations that can be purely driven using CSS code.\n *\n * Note that only browsers that support CSS transitions and/or keyframe animations are capable of\n * rendering animations triggered via `$animateCss` (bad news for IE9 and lower).\n *\n * ## Usage\n * Once again, `$animateCss` is designed to be used inside of a registered JavaScript animation that\n * is powered by ngAnimate. It is possible to use `$animateCss` directly inside of a directive, however,\n * any automatic control over cancelling animations and/or preventing animations from being run on\n * child elements will not be handled by Angular. For this to work as expected, please use `$animate` to\n * trigger the animation and then setup a JavaScript animation that injects `$animateCss` to trigger\n * the CSS animation.\n *\n * The example below shows how we can create a folding animation on an element using `ng-if`:\n *\n * ```html\n * <!-- notice the `fold-animation` CSS class -->\n * <div ng-if=\"onOff\" class=\"fold-animation\">\n *   This element will go BOOM\n * </div>\n * <button ng-click=\"onOff=true\">Fold In</button>\n * ```\n *\n * Now we create the **JavaScript animation** that will trigger the CSS transition:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * ## More Advanced Uses\n *\n * `$animateCss` is the underlying code that ngAnimate uses to power **CSS-based animations** behind the scenes. Therefore CSS hooks\n * like `.ng-EVENT`, `.ng-EVENT-active`, `.ng-EVENT-stagger` are all features that can be triggered using `$animateCss` via JavaScript code.\n *\n * This also means that just about any combination of adding classes, removing classes, setting styles, dynamically setting a keyframe animation,\n * applying a hardcoded duration or delay value, changing the animation easing or applying a stagger animation are all options that work with\n * `$animateCss`. The service itself is smart enough to figure out the combination of options and examine the element styling properties in order\n * to provide a working animation that will run in CSS.\n *\n * The example below showcases a more advanced version of the `.fold-animation` from the example above:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         addClass: 'red large-text pulse-twice',\n *         easing: 'ease-out',\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Since we're adding/removing CSS classes then the CSS transition will also pick those up:\n *\n * ```css\n * /&#42; since a hardcoded duration value of 1 was provided in the JavaScript animation code,\n * the CSS classes below will be transitioned despite them being defined as regular CSS classes &#42;/\n * .red { background:red; }\n * .large-text { font-size:20px; }\n *\n * /&#42; we can also use a keyframe animation and $animateCss will make it work alongside the transition &#42;/\n * .pulse-twice {\n *   animation: 0.5s pulse linear 2;\n *   -webkit-animation: 0.5s pulse linear 2;\n * }\n *\n * @keyframes pulse {\n *   from { transform: scale(0.5); }\n *   to { transform: scale(1.5); }\n * }\n *\n * @-webkit-keyframes pulse {\n *   from { -webkit-transform: scale(0.5); }\n *   to { -webkit-transform: scale(1.5); }\n * }\n * ```\n *\n * Given this complex combination of CSS classes, styles and options, `$animateCss` will figure everything out and make the animation happen.\n *\n * ## How the Options are handled\n *\n * `$animateCss` is very versatile and intelligent when it comes to figuring out what configurations to apply to the element to ensure the animation\n * works with the options provided. Say for example we were adding a class that contained a keyframe value and we wanted to also animate some inline\n * styles using the `from` and `to` properties.\n *\n * ```js\n * var animator = $animateCss(element, {\n *   from: { background:'red' },\n *   to: { background:'blue' }\n * });\n * animator.start();\n * ```\n *\n * ```css\n * .rotating-animation {\n *   animation:0.5s rotate linear;\n *   -webkit-animation:0.5s rotate linear;\n * }\n *\n * @keyframes rotate {\n *   from { transform: rotate(0deg); }\n *   to { transform: rotate(360deg); }\n * }\n *\n * @-webkit-keyframes rotate {\n *   from { -webkit-transform: rotate(0deg); }\n *   to { -webkit-transform: rotate(360deg); }\n * }\n * ```\n *\n * The missing pieces here are that we do not have a transition set (within the CSS code nor within the `$animateCss` options) and the duration of the animation is\n * going to be detected from what the keyframe styles on the CSS class are. In this event, `$animateCss` will automatically create an inline transition\n * style matching the duration detected from the keyframe style (which is present in the CSS class that is being added) and then prepare both the transition\n * and keyframe animations to run in parallel on the element. Then when the animation is underway the provided `from` and `to` CSS styles will be applied\n * and spread across the transition and keyframe animation.\n *\n * ## What is returned\n *\n * `$animateCss` works in two stages: a preparation phase and an animation phase. Therefore when `$animateCss` is first called it will NOT actually\n * start the animation. All that is going on here is that the element is being prepared for the animation (which means that the generated CSS classes are\n * added and removed on the element). Once `$animateCss` is called it will return an object with the following properties:\n *\n * ```js\n * var animator = $animateCss(element, { ... });\n * ```\n *\n * Now what do the contents of our `animator` variable look like:\n *\n * ```js\n * {\n *   // starts the animation\n *   start: Function,\n *\n *   // ends (aborts) the animation\n *   end: Function\n * }\n * ```\n *\n * To actually start the animation we need to run `animation.start()` which will then return a promise that we can hook into to detect when the animation ends.\n * If we choose not to run the animation then we MUST run `animation.end()` to perform a cleanup on the element (since some CSS classes and stlyes may have been\n * applied to the element during the preparation phase). Note that all other properties such as duration, delay, transitions and keyframes are just properties\n * and that changing them will not reconfigure the parameters of the animation.\n *\n * ### runner.done() vs runner.then()\n * It is documented that `animation.start()` will return a promise object and this is true, however, there is also an additional method available on the\n * runner called `.done(callbackFn)`. The done method works the same as `.finally(callbackFn)`, however, it does **not trigger a digest to occur**.\n * Therefore, for performance reasons, it's always best to use `runner.done(callback)` instead of `runner.then()`, `runner.catch()` or `runner.finally()`\n * unless you really need a digest to kick off afterwards.\n *\n * Keep in mind that, to make this easier, ngAnimate has tweaked the JS animations API to recognize when a runner instance is returned from $animateCss\n * (so there is no need to call `runner.done(doneFn)` inside of your JavaScript animation code).\n * Check the {@link ngAnimate.$animateCss#usage animation code above} to see how this works.\n *\n * @param {DOMElement} element the element that will be animated\n * @param {object} options the animation-related options that will be applied during the animation\n *\n * * `event` - The DOM event (e.g. enter, leave, move). When used, a generated CSS class of `ng-EVENT` and `ng-EVENT-active` will be applied\n * to the element during the animation. Multiple events can be provided when spaces are used as a separator. (Note that this will not perform any DOM operation.)\n * * `structural` - Indicates that the `ng-` prefix will be added to the event class. Setting to `false` or omitting will turn `ng-EVENT` and\n * `ng-EVENT-active` in `EVENT` and `EVENT-active`. Unused if `event` is omitted.\n * * `easing` - The CSS easing value that will be applied to the transition or keyframe animation (or both).\n * * `transitionStyle` - The raw CSS transition style that will be used (e.g. `1s linear all`).\n * * `keyframeStyle` - The raw CSS keyframe animation style that will be used (e.g. `1s my_animation linear`).\n * * `from` - The starting CSS styles (a key/value object) that will be applied at the start of the animation.\n * * `to` - The ending CSS styles (a key/value object) that will be applied across the animation via a CSS transition.\n * * `addClass` - A space separated list of CSS classes that will be added to the element and spread across the animation.\n * * `removeClass` - A space separated list of CSS classes that will be removed from the element and spread across the animation.\n * * `duration` - A number value representing the total duration of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `0`\n * is provided then the animation will be skipped entirely.\n * * `delay` - A number value representing the total delay of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `true` is\n * used then whatever delay value is detected from the CSS classes will be mirrored on the elements styles (e.g. by setting delay true then the style value\n * of the element will be `transition-delay: DETECTED_VALUE`). Using `true` is useful when you want the CSS classes and inline styles to all share the same\n * CSS delay value.\n * * `stagger` - A numeric time value representing the delay between successively animated elements\n * ({@link ngAnimate#css-staggering-animations Click here to learn how CSS-based staggering works in ngAnimate.})\n * * `staggerIndex` - The numeric index representing the stagger item (e.g. a value of 5 is equal to the sixth item in the stagger; therefore when a\n * * `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)\n * * `applyClassesEarly` - Whether or not the classes being added or removed will be used when detecting the animation. This is set by `$animate` when enter/leave/move animations are fired to ensure that the CSS classes are resolved in time. (Note that this will prevent any transitions from occuring on the classes being added and removed.)\n * * `cleanupStyles` - Whether or not the provided `from` and `to` styles will be removed once\n *    the animation is closed. This is useful for when the styles are used purely for the sake of\n *    the animation and do not have a lasting visual effect on the element (e.g. a colapse and open animation).\n *    By default this value is set to `false`.\n *\n * @return {object} an object with start and end methods and details about the animation.\n *\n * * `start` - The method to start the animation. This will return a `Promise` when called.\n * * `end` - This method will cancel the animation and remove all applied CSS classes and styles.\n */\nvar ONE_SECOND = 1000;\nvar BASE_TEN = 10;\n\nvar ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\nvar CLOSING_TIME_BUFFER = 1.5;\n\nvar DETECT_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  transitionProperty:      TRANSITION_PROP + PROPERTY_KEY,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP,\n  animationIterationCount: ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY\n};\n\nvar DETECT_STAGGER_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP\n};\n\nfunction getCssKeyframeDurationStyle(duration) {\n  return [ANIMATION_DURATION_PROP, duration + 's'];\n}\n\nfunction getCssDelayStyle(delay, isKeyframeAnimation) {\n  var prop = isKeyframeAnimation ? ANIMATION_DELAY_PROP : TRANSITION_DELAY_PROP;\n  return [prop, delay + 's'];\n}\n\nfunction computeCssStyles($window, element, properties) {\n  var styles = Object.create(null);\n  var detectedStyles = $window.getComputedStyle(element) || {};\n  forEach(properties, function(formalStyleName, actualStyleName) {\n    var val = detectedStyles[formalStyleName];\n    if (val) {\n      var c = val.charAt(0);\n\n      // only numerical-based values have a negative sign or digit as the first value\n      if (c === '-' || c === '+' || c >= 0) {\n        val = parseMaxTime(val);\n      }\n\n      // by setting this to null in the event that the delay is not set or is set directly as 0\n      // then we can still allow for zegative values to be used later on and not mistake this\n      // value for being greater than any other negative value.\n      if (val === 0) {\n        val = null;\n      }\n      styles[actualStyleName] = val;\n    }\n  });\n\n  return styles;\n}\n\nfunction parseMaxTime(str) {\n  var maxValue = 0;\n  var values = str.split(/\\s*,\\s*/);\n  forEach(values, function(value) {\n    // it's always safe to consider only second values and omit `ms` values since\n    // getComputedStyle will always handle the conversion for us\n    if (value.charAt(value.length - 1) == 's') {\n      value = value.substring(0, value.length - 1);\n    }\n    value = parseFloat(value) || 0;\n    maxValue = maxValue ? Math.max(value, maxValue) : value;\n  });\n  return maxValue;\n}\n\nfunction truthyTimingValue(val) {\n  return val === 0 || val != null;\n}\n\nfunction getCssTransitionDurationStyle(duration, applyOnlyDuration) {\n  var style = TRANSITION_PROP;\n  var value = duration + 's';\n  if (applyOnlyDuration) {\n    style += DURATION_KEY;\n  } else {\n    value += ' linear all';\n  }\n  return [style, value];\n}\n\nfunction createLocalCacheLookup() {\n  var cache = Object.create(null);\n  return {\n    flush: function() {\n      cache = Object.create(null);\n    },\n\n    count: function(key) {\n      var entry = cache[key];\n      return entry ? entry.total : 0;\n    },\n\n    get: function(key) {\n      var entry = cache[key];\n      return entry && entry.value;\n    },\n\n    put: function(key, value) {\n      if (!cache[key]) {\n        cache[key] = { total: 1, value: value };\n      } else {\n        cache[key].total++;\n      }\n    }\n  };\n}\n\n// we do not reassign an already present style value since\n// if we detect the style property value again we may be\n// detecting styles that were added via the `from` styles.\n// We make use of `isDefined` here since an empty string\n// or null value (which is what getPropertyValue will return\n// for a non-existing style) will still be marked as a valid\n// value for the style (a falsy value implies that the style\n// is to be removed at the end of the animation). If we had a simple\n// \"OR\" statement then it would not be enough to catch that.\nfunction registerRestorableStyles(backup, node, properties) {\n  forEach(properties, function(prop) {\n    backup[prop] = isDefined(backup[prop])\n        ? backup[prop]\n        : node.style.getPropertyValue(prop);\n  });\n}\n\nvar $AnimateCssProvider = ['$animateProvider', function($animateProvider) {\n  var gcsLookup = createLocalCacheLookup();\n  var gcsStaggerLookup = createLocalCacheLookup();\n\n  this.$get = ['$window', '$$jqLite', '$$AnimateRunner', '$timeout',\n               '$$forceReflow', '$sniffer', '$$rAFScheduler', '$$animateQueue',\n       function($window,   $$jqLite,   $$AnimateRunner,   $timeout,\n                $$forceReflow,   $sniffer,   $$rAFScheduler, $$animateQueue) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    var parentCounter = 0;\n    function gcsHashFn(node, extraClasses) {\n      var KEY = \"$$ngAnimateParentKey\";\n      var parentNode = node.parentNode;\n      var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);\n      return parentID + '-' + node.getAttribute('class') + '-' + extraClasses;\n    }\n\n    function computeCachedCssStyles(node, className, cacheKey, properties) {\n      var timings = gcsLookup.get(cacheKey);\n\n      if (!timings) {\n        timings = computeCssStyles($window, node, properties);\n        if (timings.animationIterationCount === 'infinite') {\n          timings.animationIterationCount = 1;\n        }\n      }\n\n      // we keep putting this in multiple times even though the value and the cacheKey are the same\n      // because we're keeping an interal tally of how many duplicate animations are detected.\n      gcsLookup.put(cacheKey, timings);\n      return timings;\n    }\n\n    function computeCachedCssStaggerStyles(node, className, cacheKey, properties) {\n      var stagger;\n\n      // if we have one or more existing matches of matching elements\n      // containing the same parent + CSS styles (which is how cacheKey works)\n      // then staggering is possible\n      if (gcsLookup.count(cacheKey) > 0) {\n        stagger = gcsStaggerLookup.get(cacheKey);\n\n        if (!stagger) {\n          var staggerClassName = pendClasses(className, '-stagger');\n\n          $$jqLite.addClass(node, staggerClassName);\n\n          stagger = computeCssStyles($window, node, properties);\n\n          // force the conversion of a null value to zero incase not set\n          stagger.animationDuration = Math.max(stagger.animationDuration, 0);\n          stagger.transitionDuration = Math.max(stagger.transitionDuration, 0);\n\n          $$jqLite.removeClass(node, staggerClassName);\n\n          gcsStaggerLookup.put(cacheKey, stagger);\n        }\n      }\n\n      return stagger || {};\n    }\n\n    var cancelLastRAFRequest;\n    var rafWaitQueue = [];\n    function waitUntilQuiet(callback) {\n      rafWaitQueue.push(callback);\n      $$rAFScheduler.waitUntilQuiet(function() {\n        gcsLookup.flush();\n        gcsStaggerLookup.flush();\n\n        // DO NOT REMOVE THIS LINE OR REFACTOR OUT THE `pageWidth` variable.\n        // PLEASE EXAMINE THE `$$forceReflow` service to understand why.\n        var pageWidth = $$forceReflow();\n\n        // we use a for loop to ensure that if the queue is changed\n        // during this looping then it will consider new requests\n        for (var i = 0; i < rafWaitQueue.length; i++) {\n          rafWaitQueue[i](pageWidth);\n        }\n        rafWaitQueue.length = 0;\n      });\n    }\n\n    function computeTimings(node, className, cacheKey) {\n      var timings = computeCachedCssStyles(node, className, cacheKey, DETECT_CSS_PROPERTIES);\n      var aD = timings.animationDelay;\n      var tD = timings.transitionDelay;\n      timings.maxDelay = aD && tD\n          ? Math.max(aD, tD)\n          : (aD || tD);\n      timings.maxDuration = Math.max(\n          timings.animationDuration * timings.animationIterationCount,\n          timings.transitionDuration);\n\n      return timings;\n    }\n\n    return function init(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = prepareAnimationOptions(copy(options));\n      }\n\n      var restoreStyles = {};\n      var node = getDomNode(element);\n      if (!node\n          || !node.parentNode\n          || !$$animateQueue.enabled()) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var temporaryStyles = [];\n      var classes = element.attr('class');\n      var styles = packageStyles(options);\n      var animationClosed;\n      var animationPaused;\n      var animationCompleted;\n      var runner;\n      var runnerHost;\n      var maxDelay;\n      var maxDelayTime;\n      var maxDuration;\n      var maxDurationTime;\n      var startTime;\n      var events = [];\n\n      if (options.duration === 0 || (!$sniffer.animations && !$sniffer.transitions)) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var method = options.event && isArray(options.event)\n            ? options.event.join(' ')\n            : options.event;\n\n      var isStructural = method && options.structural;\n      var structuralClassName = '';\n      var addRemoveClassName = '';\n\n      if (isStructural) {\n        structuralClassName = pendClasses(method, EVENT_CLASS_PREFIX, true);\n      } else if (method) {\n        structuralClassName = method;\n      }\n\n      if (options.addClass) {\n        addRemoveClassName += pendClasses(options.addClass, ADD_CLASS_SUFFIX);\n      }\n\n      if (options.removeClass) {\n        if (addRemoveClassName.length) {\n          addRemoveClassName += ' ';\n        }\n        addRemoveClassName += pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX);\n      }\n\n      // there may be a situation where a structural animation is combined together\n      // with CSS classes that need to resolve before the animation is computed.\n      // However this means that there is no explicit CSS code to block the animation\n      // from happening (by setting 0s none in the class name). If this is the case\n      // we need to apply the classes before the first rAF so we know to continue if\n      // there actually is a detected transition or keyframe animation\n      if (options.applyClassesEarly && addRemoveClassName.length) {\n        applyAnimationClasses(element, options);\n      }\n\n      var preparationClasses = [structuralClassName, addRemoveClassName].join(' ').trim();\n      var fullClassName = classes + ' ' + preparationClasses;\n      var activeClasses = pendClasses(preparationClasses, ACTIVE_CLASS_SUFFIX);\n      var hasToStyles = styles.to && Object.keys(styles.to).length > 0;\n      var containsKeyframeAnimation = (options.keyframeStyle || '').length > 0;\n\n      // there is no way we can trigger an animation if no styles and\n      // no classes are being applied which would then trigger a transition,\n      // unless there a is raw keyframe value that is applied to the element.\n      if (!containsKeyframeAnimation\n           && !hasToStyles\n           && !preparationClasses) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var cacheKey, stagger;\n      if (options.stagger > 0) {\n        var staggerVal = parseFloat(options.stagger);\n        stagger = {\n          transitionDelay: staggerVal,\n          animationDelay: staggerVal,\n          transitionDuration: 0,\n          animationDuration: 0\n        };\n      } else {\n        cacheKey = gcsHashFn(node, fullClassName);\n        stagger = computeCachedCssStaggerStyles(node, preparationClasses, cacheKey, DETECT_STAGGER_CSS_PROPERTIES);\n      }\n\n      if (!options.$$skipPreparationClasses) {\n        $$jqLite.addClass(element, preparationClasses);\n      }\n\n      var applyOnlyDuration;\n\n      if (options.transitionStyle) {\n        var transitionStyle = [TRANSITION_PROP, options.transitionStyle];\n        applyInlineStyle(node, transitionStyle);\n        temporaryStyles.push(transitionStyle);\n      }\n\n      if (options.duration >= 0) {\n        applyOnlyDuration = node.style[TRANSITION_PROP].length > 0;\n        var durationStyle = getCssTransitionDurationStyle(options.duration, applyOnlyDuration);\n\n        // we set the duration so that it will be picked up by getComputedStyle later\n        applyInlineStyle(node, durationStyle);\n        temporaryStyles.push(durationStyle);\n      }\n\n      if (options.keyframeStyle) {\n        var keyframeStyle = [ANIMATION_PROP, options.keyframeStyle];\n        applyInlineStyle(node, keyframeStyle);\n        temporaryStyles.push(keyframeStyle);\n      }\n\n      var itemIndex = stagger\n          ? options.staggerIndex >= 0\n              ? options.staggerIndex\n              : gcsLookup.count(cacheKey)\n          : 0;\n\n      var isFirst = itemIndex === 0;\n\n      // this is a pre-emptive way of forcing the setup classes to be added and applied INSTANTLY\n      // without causing any combination of transitions to kick in. By adding a negative delay value\n      // it forces the setup class' transition to end immediately. We later then remove the negative\n      // transition delay to allow for the transition to naturally do it's thing. The beauty here is\n      // that if there is no transition defined then nothing will happen and this will also allow\n      // other transitions to be stacked on top of each other without any chopping them out.\n      if (isFirst && !options.skipBlocking) {\n        blockTransitions(node, SAFE_FAST_FORWARD_DURATION_VALUE);\n      }\n\n      var timings = computeTimings(node, fullClassName, cacheKey);\n      var relativeDelay = timings.maxDelay;\n      maxDelay = Math.max(relativeDelay, 0);\n      maxDuration = timings.maxDuration;\n\n      var flags = {};\n      flags.hasTransitions          = timings.transitionDuration > 0;\n      flags.hasAnimations           = timings.animationDuration > 0;\n      flags.hasTransitionAll        = flags.hasTransitions && timings.transitionProperty == 'all';\n      flags.applyTransitionDuration = hasToStyles && (\n                                        (flags.hasTransitions && !flags.hasTransitionAll)\n                                         || (flags.hasAnimations && !flags.hasTransitions));\n      flags.applyAnimationDuration  = options.duration && flags.hasAnimations;\n      flags.applyTransitionDelay    = truthyTimingValue(options.delay) && (flags.applyTransitionDuration || flags.hasTransitions);\n      flags.applyAnimationDelay     = truthyTimingValue(options.delay) && flags.hasAnimations;\n      flags.recalculateTimingStyles = addRemoveClassName.length > 0;\n\n      if (flags.applyTransitionDuration || flags.applyAnimationDuration) {\n        maxDuration = options.duration ? parseFloat(options.duration) : maxDuration;\n\n        if (flags.applyTransitionDuration) {\n          flags.hasTransitions = true;\n          timings.transitionDuration = maxDuration;\n          applyOnlyDuration = node.style[TRANSITION_PROP + PROPERTY_KEY].length > 0;\n          temporaryStyles.push(getCssTransitionDurationStyle(maxDuration, applyOnlyDuration));\n        }\n\n        if (flags.applyAnimationDuration) {\n          flags.hasAnimations = true;\n          timings.animationDuration = maxDuration;\n          temporaryStyles.push(getCssKeyframeDurationStyle(maxDuration));\n        }\n      }\n\n      if (maxDuration === 0 && !flags.recalculateTimingStyles) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      if (options.delay != null) {\n        var delayStyle;\n        if (typeof options.delay !== \"boolean\") {\n          delayStyle = parseFloat(options.delay);\n          // number in options.delay means we have to recalculate the delay for the closing timeout\n          maxDelay = Math.max(delayStyle, 0);\n        }\n\n        if (flags.applyTransitionDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle));\n        }\n\n        if (flags.applyAnimationDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle, true));\n        }\n      }\n\n      // we need to recalculate the delay value since we used a pre-emptive negative\n      // delay value and the delay value is required for the final event checking. This\n      // property will ensure that this will happen after the RAF phase has passed.\n      if (options.duration == null && timings.transitionDuration > 0) {\n        flags.recalculateTimingStyles = flags.recalculateTimingStyles || isFirst;\n      }\n\n      maxDelayTime = maxDelay * ONE_SECOND;\n      maxDurationTime = maxDuration * ONE_SECOND;\n      if (!options.skipBlocking) {\n        flags.blockTransition = timings.transitionDuration > 0;\n        flags.blockKeyframeAnimation = timings.animationDuration > 0 &&\n                                       stagger.animationDelay > 0 &&\n                                       stagger.animationDuration === 0;\n      }\n\n      if (options.from) {\n        if (options.cleanupStyles) {\n          registerRestorableStyles(restoreStyles, node, Object.keys(options.from));\n        }\n        applyAnimationFromStyles(element, options);\n      }\n\n      if (flags.blockTransition || flags.blockKeyframeAnimation) {\n        applyBlocking(maxDuration);\n      } else if (!options.skipBlocking) {\n        blockTransitions(node, false);\n      }\n\n      // TODO(matsko): for 1.5 change this code to have an animator object for better debugging\n      return {\n        $$willAnimate: true,\n        end: endFn,\n        start: function() {\n          if (animationClosed) return;\n\n          runnerHost = {\n            end: endFn,\n            cancel: cancelFn,\n            resume: null, //this will be set during the start() phase\n            pause: null\n          };\n\n          runner = new $$AnimateRunner(runnerHost);\n\n          waitUntilQuiet(start);\n\n          // we don't have access to pause/resume the animation\n          // since it hasn't run yet. AnimateRunner will therefore\n          // set noop functions for resume and pause and they will\n          // later be overridden once the animation is triggered\n          return runner;\n        }\n      };\n\n      function endFn() {\n        close();\n      }\n\n      function cancelFn() {\n        close(true);\n      }\n\n      function close(rejected) { // jshint ignore:line\n        // if the promise has been called already then we shouldn't close\n        // the animation again\n        if (animationClosed || (animationCompleted && animationPaused)) return;\n        animationClosed = true;\n        animationPaused = false;\n\n        if (!options.$$skipPreparationClasses) {\n          $$jqLite.removeClass(element, preparationClasses);\n        }\n        $$jqLite.removeClass(element, activeClasses);\n\n        blockKeyframeAnimations(node, false);\n        blockTransitions(node, false);\n\n        forEach(temporaryStyles, function(entry) {\n          // There is only one way to remove inline style properties entirely from elements.\n          // By using `removeProperty` this works, but we need to convert camel-cased CSS\n          // styles down to hyphenated values.\n          node.style[entry[0]] = '';\n        });\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n\n        if (Object.keys(restoreStyles).length) {\n          forEach(restoreStyles, function(value, prop) {\n            value ? node.style.setProperty(prop, value)\n                  : node.style.removeProperty(prop);\n          });\n        }\n\n        // the reason why we have this option is to allow a synchronous closing callback\n        // that is fired as SOON as the animation ends (when the CSS is removed) or if\n        // the animation never takes off at all. A good example is a leave animation since\n        // the element must be removed just after the animation is over or else the element\n        // will appear on screen for one animation frame causing an overbearing flicker.\n        if (options.onDone) {\n          options.onDone();\n        }\n\n        if (events && events.length) {\n          // Remove the transitionend / animationend listener(s)\n          element.off(events.join(' '), onAnimationProgress);\n        }\n\n        //Cancel the fallback closing timeout and remove the timer data\n        var animationTimerData = element.data(ANIMATE_TIMER_KEY);\n        if (animationTimerData) {\n          $timeout.cancel(animationTimerData[0].timer);\n          element.removeData(ANIMATE_TIMER_KEY);\n        }\n\n        // if the preparation function fails then the promise is not setup\n        if (runner) {\n          runner.complete(!rejected);\n        }\n      }\n\n      function applyBlocking(duration) {\n        if (flags.blockTransition) {\n          blockTransitions(node, duration);\n        }\n\n        if (flags.blockKeyframeAnimation) {\n          blockKeyframeAnimations(node, !!duration);\n        }\n      }\n\n      function closeAndReturnNoopAnimator() {\n        runner = new $$AnimateRunner({\n          end: endFn,\n          cancel: cancelFn\n        });\n\n        // should flush the cache animation\n        waitUntilQuiet(noop);\n        close();\n\n        return {\n          $$willAnimate: false,\n          start: function() {\n            return runner;\n          },\n          end: endFn\n        };\n      }\n\n      function onAnimationProgress(event) {\n        event.stopPropagation();\n        var ev = event.originalEvent || event;\n\n        // we now always use `Date.now()` due to the recent changes with\n        // event.timeStamp in Firefox, Webkit and Chrome (see #13494 for more info)\n        var timeStamp = ev.$manualTimeStamp || Date.now();\n\n        /* Firefox (or possibly just Gecko) likes to not round values up\n         * when a ms measurement is used for the animation */\n        var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));\n\n        /* $manualTimeStamp is a mocked timeStamp value which is set\n         * within browserTrigger(). This is only here so that tests can\n         * mock animations properly. Real events fallback to event.timeStamp,\n         * or, if they don't, then a timeStamp is automatically created for them.\n         * We're checking to see if the timeStamp surpasses the expected delay,\n         * but we're using elapsedTime instead of the timeStamp on the 2nd\n         * pre-condition since animationPauseds sometimes close off early */\n        if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n          // we set this flag to ensure that if the transition is paused then, when resumed,\n          // the animation will automatically close itself since transitions cannot be paused.\n          animationCompleted = true;\n          close();\n        }\n      }\n\n      function start() {\n        if (animationClosed) return;\n        if (!node.parentNode) {\n          close();\n          return;\n        }\n\n        // even though we only pause keyframe animations here the pause flag\n        // will still happen when transitions are used. Only the transition will\n        // not be paused since that is not possible. If the animation ends when\n        // paused then it will not complete until unpaused or cancelled.\n        var playPause = function(playAnimation) {\n          if (!animationCompleted) {\n            animationPaused = !playAnimation;\n            if (timings.animationDuration) {\n              var value = blockKeyframeAnimations(node, animationPaused);\n              animationPaused\n                  ? temporaryStyles.push(value)\n                  : removeFromArray(temporaryStyles, value);\n            }\n          } else if (animationPaused && playAnimation) {\n            animationPaused = false;\n            close();\n          }\n        };\n\n        // checking the stagger duration prevents an accidently cascade of the CSS delay style\n        // being inherited from the parent. If the transition duration is zero then we can safely\n        // rely that the delay value is an intential stagger delay style.\n        var maxStagger = itemIndex > 0\n                         && ((timings.transitionDuration && stagger.transitionDuration === 0) ||\n                            (timings.animationDuration && stagger.animationDuration === 0))\n                         && Math.max(stagger.animationDelay, stagger.transitionDelay);\n        if (maxStagger) {\n          $timeout(triggerAnimationStart,\n                   Math.floor(maxStagger * itemIndex * ONE_SECOND),\n                   false);\n        } else {\n          triggerAnimationStart();\n        }\n\n        // this will decorate the existing promise runner with pause/resume methods\n        runnerHost.resume = function() {\n          playPause(true);\n        };\n\n        runnerHost.pause = function() {\n          playPause(false);\n        };\n\n        function triggerAnimationStart() {\n          // just incase a stagger animation kicks in when the animation\n          // itself was cancelled entirely\n          if (animationClosed) return;\n\n          applyBlocking(false);\n\n          forEach(temporaryStyles, function(entry) {\n            var key = entry[0];\n            var value = entry[1];\n            node.style[key] = value;\n          });\n\n          applyAnimationClasses(element, options);\n          $$jqLite.addClass(element, activeClasses);\n\n          if (flags.recalculateTimingStyles) {\n            fullClassName = node.className + ' ' + preparationClasses;\n            cacheKey = gcsHashFn(node, fullClassName);\n\n            timings = computeTimings(node, fullClassName, cacheKey);\n            relativeDelay = timings.maxDelay;\n            maxDelay = Math.max(relativeDelay, 0);\n            maxDuration = timings.maxDuration;\n\n            if (maxDuration === 0) {\n              close();\n              return;\n            }\n\n            flags.hasTransitions = timings.transitionDuration > 0;\n            flags.hasAnimations = timings.animationDuration > 0;\n          }\n\n          if (flags.applyAnimationDelay) {\n            relativeDelay = typeof options.delay !== \"boolean\" && truthyTimingValue(options.delay)\n                  ? parseFloat(options.delay)\n                  : relativeDelay;\n\n            maxDelay = Math.max(relativeDelay, 0);\n            timings.animationDelay = relativeDelay;\n            delayStyle = getCssDelayStyle(relativeDelay, true);\n            temporaryStyles.push(delayStyle);\n            node.style[delayStyle[0]] = delayStyle[1];\n          }\n\n          maxDelayTime = maxDelay * ONE_SECOND;\n          maxDurationTime = maxDuration * ONE_SECOND;\n\n          if (options.easing) {\n            var easeProp, easeVal = options.easing;\n            if (flags.hasTransitions) {\n              easeProp = TRANSITION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n            if (flags.hasAnimations) {\n              easeProp = ANIMATION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n          }\n\n          if (timings.transitionDuration) {\n            events.push(TRANSITIONEND_EVENT);\n          }\n\n          if (timings.animationDuration) {\n            events.push(ANIMATIONEND_EVENT);\n          }\n\n          startTime = Date.now();\n          var timerTime = maxDelayTime + CLOSING_TIME_BUFFER * maxDurationTime;\n          var endTime = startTime + timerTime;\n\n          var animationsData = element.data(ANIMATE_TIMER_KEY) || [];\n          var setupFallbackTimer = true;\n          if (animationsData.length) {\n            var currentTimerData = animationsData[0];\n            setupFallbackTimer = endTime > currentTimerData.expectedEndTime;\n            if (setupFallbackTimer) {\n              $timeout.cancel(currentTimerData.timer);\n            } else {\n              animationsData.push(close);\n            }\n          }\n\n          if (setupFallbackTimer) {\n            var timer = $timeout(onAnimationExpired, timerTime, false);\n            animationsData[0] = {\n              timer: timer,\n              expectedEndTime: endTime\n            };\n            animationsData.push(close);\n            element.data(ANIMATE_TIMER_KEY, animationsData);\n          }\n\n          if (events.length) {\n            element.on(events.join(' '), onAnimationProgress);\n          }\n\n          if (options.to) {\n            if (options.cleanupStyles) {\n              registerRestorableStyles(restoreStyles, node, Object.keys(options.to));\n            }\n            applyAnimationToStyles(element, options);\n          }\n        }\n\n        function onAnimationExpired() {\n          var animationsData = element.data(ANIMATE_TIMER_KEY);\n\n          // this will be false in the event that the element was\n          // removed from the DOM (via a leave animation or something\n          // similar)\n          if (animationsData) {\n            for (var i = 1; i < animationsData.length; i++) {\n              animationsData[i]();\n            }\n            element.removeData(ANIMATE_TIMER_KEY);\n          }\n        }\n      }\n    };\n  }];\n}];\n\nvar $$AnimateCssDriverProvider = ['$$animationProvider', function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateCssDriver');\n\n  var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';\n  var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';\n\n  var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';\n  var NG_IN_ANCHOR_CLASS_NAME = 'ng-anchor-in';\n\n  function isDocumentFragment(node) {\n    return node.parentNode && node.parentNode.nodeType === 11;\n  }\n\n  this.$get = ['$animateCss', '$rootScope', '$$AnimateRunner', '$rootElement', '$sniffer', '$$jqLite', '$document',\n       function($animateCss,   $rootScope,   $$AnimateRunner,   $rootElement,   $sniffer,   $$jqLite,   $document) {\n\n    // only browsers that support these properties can render animations\n    if (!$sniffer.animations && !$sniffer.transitions) return noop;\n\n    var bodyNode = $document[0].body;\n    var rootNode = getDomNode($rootElement);\n\n    var rootBodyElement = jqLite(\n      // this is to avoid using something that exists outside of the body\n      // we also special case the doc fragement case because our unit test code\n      // appends the $rootElement to the body after the app has been bootstrapped\n      isDocumentFragment(rootNode) || bodyNode.contains(rootNode) ? rootNode : bodyNode\n    );\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    return function initDriverFn(animationDetails) {\n      return animationDetails.from && animationDetails.to\n          ? prepareFromToAnchorAnimation(animationDetails.from,\n                                         animationDetails.to,\n                                         animationDetails.classes,\n                                         animationDetails.anchors)\n          : prepareRegularAnimation(animationDetails);\n    };\n\n    function filterCssClasses(classes) {\n      //remove all the `ng-` stuff\n      return classes.replace(/\\bng-\\S+\\b/g, '');\n    }\n\n    function getUniqueValues(a, b) {\n      if (isString(a)) a = a.split(' ');\n      if (isString(b)) b = b.split(' ');\n      return a.filter(function(val) {\n        return b.indexOf(val) === -1;\n      }).join(' ');\n    }\n\n    function prepareAnchoredAnimation(classes, outAnchor, inAnchor) {\n      var clone = jqLite(getDomNode(outAnchor).cloneNode(true));\n      var startingClasses = filterCssClasses(getClassVal(clone));\n\n      outAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      inAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n\n      clone.addClass(NG_ANIMATE_ANCHOR_CLASS_NAME);\n\n      rootBodyElement.append(clone);\n\n      var animatorIn, animatorOut = prepareOutAnimation();\n\n      // the user may not end up using the `out` animation and\n      // only making use of the `in` animation or vice-versa.\n      // In either case we should allow this and not assume the\n      // animation is over unless both animations are not used.\n      if (!animatorOut) {\n        animatorIn = prepareInAnimation();\n        if (!animatorIn) {\n          return end();\n        }\n      }\n\n      var startingAnimator = animatorOut || animatorIn;\n\n      return {\n        start: function() {\n          var runner;\n\n          var currentAnimation = startingAnimator.start();\n          currentAnimation.done(function() {\n            currentAnimation = null;\n            if (!animatorIn) {\n              animatorIn = prepareInAnimation();\n              if (animatorIn) {\n                currentAnimation = animatorIn.start();\n                currentAnimation.done(function() {\n                  currentAnimation = null;\n                  end();\n                  runner.complete();\n                });\n                return currentAnimation;\n              }\n            }\n            // in the event that there is no `in` animation\n            end();\n            runner.complete();\n          });\n\n          runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn\n          });\n\n          return runner;\n\n          function endFn() {\n            if (currentAnimation) {\n              currentAnimation.end();\n            }\n          }\n        }\n      };\n\n      function calculateAnchorStyles(anchor) {\n        var styles = {};\n\n        var coords = getDomNode(anchor).getBoundingClientRect();\n\n        // we iterate directly since safari messes up and doesn't return\n        // all the keys for the coods object when iterated\n        forEach(['width','height','top','left'], function(key) {\n          var value = coords[key];\n          switch (key) {\n            case 'top':\n              value += bodyNode.scrollTop;\n              break;\n            case 'left':\n              value += bodyNode.scrollLeft;\n              break;\n          }\n          styles[key] = Math.floor(value) + 'px';\n        });\n        return styles;\n      }\n\n      function prepareOutAnimation() {\n        var animator = $animateCss(clone, {\n          addClass: NG_OUT_ANCHOR_CLASS_NAME,\n          delay: true,\n          from: calculateAnchorStyles(outAnchor)\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function getClassVal(element) {\n        return element.attr('class') || '';\n      }\n\n      function prepareInAnimation() {\n        var endingClasses = filterCssClasses(getClassVal(inAnchor));\n        var toAdd = getUniqueValues(endingClasses, startingClasses);\n        var toRemove = getUniqueValues(startingClasses, endingClasses);\n\n        var animator = $animateCss(clone, {\n          to: calculateAnchorStyles(inAnchor),\n          addClass: NG_IN_ANCHOR_CLASS_NAME + ' ' + toAdd,\n          removeClass: NG_OUT_ANCHOR_CLASS_NAME + ' ' + toRemove,\n          delay: true\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function end() {\n        clone.remove();\n        outAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n        inAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      }\n    }\n\n    function prepareFromToAnchorAnimation(from, to, classes, anchors) {\n      var fromAnimation = prepareRegularAnimation(from, noop);\n      var toAnimation = prepareRegularAnimation(to, noop);\n\n      var anchorAnimations = [];\n      forEach(anchors, function(anchor) {\n        var outElement = anchor['out'];\n        var inElement = anchor['in'];\n        var animator = prepareAnchoredAnimation(classes, outElement, inElement);\n        if (animator) {\n          anchorAnimations.push(animator);\n        }\n      });\n\n      // no point in doing anything when there are no elements to animate\n      if (!fromAnimation && !toAnimation && anchorAnimations.length === 0) return;\n\n      return {\n        start: function() {\n          var animationRunners = [];\n\n          if (fromAnimation) {\n            animationRunners.push(fromAnimation.start());\n          }\n\n          if (toAnimation) {\n            animationRunners.push(toAnimation.start());\n          }\n\n          forEach(anchorAnimations, function(animation) {\n            animationRunners.push(animation.start());\n          });\n\n          var runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn // CSS-driven animations cannot be cancelled, only ended\n          });\n\n          $$AnimateRunner.all(animationRunners, function(status) {\n            runner.complete(status);\n          });\n\n          return runner;\n\n          function endFn() {\n            forEach(animationRunners, function(runner) {\n              runner.end();\n            });\n          }\n        }\n      };\n    }\n\n    function prepareRegularAnimation(animationDetails) {\n      var element = animationDetails.element;\n      var options = animationDetails.options || {};\n\n      if (animationDetails.structural) {\n        options.event = animationDetails.event;\n        options.structural = true;\n        options.applyClassesEarly = true;\n\n        // we special case the leave animation since we want to ensure that\n        // the element is removed as soon as the animation is over. Otherwise\n        // a flicker might appear or the element may not be removed at all\n        if (animationDetails.event === 'leave') {\n          options.onDone = options.domOperation;\n        }\n      }\n\n      // We assign the preparationClasses as the actual animation event since\n      // the internals of $animateCss will just suffix the event token values\n      // with `-active` to trigger the animation.\n      if (options.preparationClasses) {\n        options.event = concatWithSpace(options.event, options.preparationClasses);\n      }\n\n      var animator = $animateCss(element, options);\n\n      // the driver lookup code inside of $$animation attempts to spawn a\n      // driver one by one until a driver returns a.$$willAnimate animator object.\n      // $animateCss will always return an object, however, it will pass in\n      // a flag as a hint as to whether an animation was detected or not\n      return animator.$$willAnimate ? animator : null;\n    }\n  }];\n}];\n\n// TODO(matsko): use caching here to speed things up for detection\n// TODO(matsko): add documentation\n//  by the time...\n\nvar $$AnimateJsProvider = ['$animateProvider', function($animateProvider) {\n  this.$get = ['$injector', '$$AnimateRunner', '$$jqLite',\n       function($injector,   $$AnimateRunner,   $$jqLite) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n         // $animateJs(element, 'enter');\n    return function(element, event, classes, options) {\n      var animationClosed = false;\n\n      // the `classes` argument is optional and if it is not used\n      // then the classes will be resolved from the element's className\n      // property as well as options.addClass/options.removeClass.\n      if (arguments.length === 3 && isObject(classes)) {\n        options = classes;\n        classes = null;\n      }\n\n      options = prepareAnimationOptions(options);\n      if (!classes) {\n        classes = element.attr('class') || '';\n        if (options.addClass) {\n          classes += ' ' + options.addClass;\n        }\n        if (options.removeClass) {\n          classes += ' ' + options.removeClass;\n        }\n      }\n\n      var classesToAdd = options.addClass;\n      var classesToRemove = options.removeClass;\n\n      // the lookupAnimations function returns a series of animation objects that are\n      // matched up with one or more of the CSS classes. These animation objects are\n      // defined via the module.animation factory function. If nothing is detected then\n      // we don't return anything which then makes $animation query the next driver.\n      var animations = lookupAnimations(classes);\n      var before, after;\n      if (animations.length) {\n        var afterFn, beforeFn;\n        if (event == 'leave') {\n          beforeFn = 'leave';\n          afterFn = 'afterLeave'; // TODO(matsko): get rid of this\n        } else {\n          beforeFn = 'before' + event.charAt(0).toUpperCase() + event.substr(1);\n          afterFn = event;\n        }\n\n        if (event !== 'enter' && event !== 'move') {\n          before = packageAnimations(element, event, options, animations, beforeFn);\n        }\n        after  = packageAnimations(element, event, options, animations, afterFn);\n      }\n\n      // no matching animations\n      if (!before && !after) return;\n\n      function applyOptions() {\n        options.domOperation();\n        applyAnimationClasses(element, options);\n      }\n\n      function close() {\n        animationClosed = true;\n        applyOptions();\n        applyAnimationStyles(element, options);\n      }\n\n      var runner;\n\n      return {\n        $$willAnimate: true,\n        end: function() {\n          if (runner) {\n            runner.end();\n          } else {\n            close();\n            runner = new $$AnimateRunner();\n            runner.complete(true);\n          }\n          return runner;\n        },\n        start: function() {\n          if (runner) {\n            return runner;\n          }\n\n          runner = new $$AnimateRunner();\n          var closeActiveAnimations;\n          var chain = [];\n\n          if (before) {\n            chain.push(function(fn) {\n              closeActiveAnimations = before(fn);\n            });\n          }\n\n          if (chain.length) {\n            chain.push(function(fn) {\n              applyOptions();\n              fn(true);\n            });\n          } else {\n            applyOptions();\n          }\n\n          if (after) {\n            chain.push(function(fn) {\n              closeActiveAnimations = after(fn);\n            });\n          }\n\n          runner.setHost({\n            end: function() {\n              endAnimations();\n            },\n            cancel: function() {\n              endAnimations(true);\n            }\n          });\n\n          $$AnimateRunner.chain(chain, onComplete);\n          return runner;\n\n          function onComplete(success) {\n            close(success);\n            runner.complete(success);\n          }\n\n          function endAnimations(cancelled) {\n            if (!animationClosed) {\n              (closeActiveAnimations || noop)(cancelled);\n              onComplete(cancelled);\n            }\n          }\n        }\n      };\n\n      function executeAnimationFn(fn, element, event, options, onDone) {\n        var args;\n        switch (event) {\n          case 'animate':\n            args = [element, options.from, options.to, onDone];\n            break;\n\n          case 'setClass':\n            args = [element, classesToAdd, classesToRemove, onDone];\n            break;\n\n          case 'addClass':\n            args = [element, classesToAdd, onDone];\n            break;\n\n          case 'removeClass':\n            args = [element, classesToRemove, onDone];\n            break;\n\n          default:\n            args = [element, onDone];\n            break;\n        }\n\n        args.push(options);\n\n        var value = fn.apply(fn, args);\n        if (value) {\n          if (isFunction(value.start)) {\n            value = value.start();\n          }\n\n          if (value instanceof $$AnimateRunner) {\n            value.done(onDone);\n          } else if (isFunction(value)) {\n            // optional onEnd / onCancel callback\n            return value;\n          }\n        }\n\n        return noop;\n      }\n\n      function groupEventedAnimations(element, event, options, animations, fnName) {\n        var operations = [];\n        forEach(animations, function(ani) {\n          var animation = ani[fnName];\n          if (!animation) return;\n\n          // note that all of these animations will run in parallel\n          operations.push(function() {\n            var runner;\n            var endProgressCb;\n\n            var resolved = false;\n            var onAnimationComplete = function(rejected) {\n              if (!resolved) {\n                resolved = true;\n                (endProgressCb || noop)(rejected);\n                runner.complete(!rejected);\n              }\n            };\n\n            runner = new $$AnimateRunner({\n              end: function() {\n                onAnimationComplete();\n              },\n              cancel: function() {\n                onAnimationComplete(true);\n              }\n            });\n\n            endProgressCb = executeAnimationFn(animation, element, event, options, function(result) {\n              var cancelled = result === false;\n              onAnimationComplete(cancelled);\n            });\n\n            return runner;\n          });\n        });\n\n        return operations;\n      }\n\n      function packageAnimations(element, event, options, animations, fnName) {\n        var operations = groupEventedAnimations(element, event, options, animations, fnName);\n        if (operations.length === 0) {\n          var a,b;\n          if (fnName === 'beforeSetClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'beforeRemoveClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'beforeAddClass');\n          } else if (fnName === 'setClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'removeClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'addClass');\n          }\n\n          if (a) {\n            operations = operations.concat(a);\n          }\n          if (b) {\n            operations = operations.concat(b);\n          }\n        }\n\n        if (operations.length === 0) return;\n\n        // TODO(matsko): add documentation\n        return function startAnimation(callback) {\n          var runners = [];\n          if (operations.length) {\n            forEach(operations, function(animateFn) {\n              runners.push(animateFn());\n            });\n          }\n\n          runners.length ? $$AnimateRunner.all(runners, callback) : callback();\n\n          return function endFn(reject) {\n            forEach(runners, function(runner) {\n              reject ? runner.cancel() : runner.end();\n            });\n          };\n        };\n      }\n    };\n\n    function lookupAnimations(classes) {\n      classes = isArray(classes) ? classes : classes.split(' ');\n      var matches = [], flagMap = {};\n      for (var i=0; i < classes.length; i++) {\n        var klass = classes[i],\n            animationFactory = $animateProvider.$$registeredAnimations[klass];\n        if (animationFactory && !flagMap[klass]) {\n          matches.push($injector.get(animationFactory));\n          flagMap[klass] = true;\n        }\n      }\n      return matches;\n    }\n  }];\n}];\n\nvar $$AnimateJsDriverProvider = ['$$animationProvider', function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateJsDriver');\n  this.$get = ['$$animateJs', '$$AnimateRunner', function($$animateJs, $$AnimateRunner) {\n    return function initDriverFn(animationDetails) {\n      if (animationDetails.from && animationDetails.to) {\n        var fromAnimation = prepareAnimation(animationDetails.from);\n        var toAnimation = prepareAnimation(animationDetails.to);\n        if (!fromAnimation && !toAnimation) return;\n\n        return {\n          start: function() {\n            var animationRunners = [];\n\n            if (fromAnimation) {\n              animationRunners.push(fromAnimation.start());\n            }\n\n            if (toAnimation) {\n              animationRunners.push(toAnimation.start());\n            }\n\n            $$AnimateRunner.all(animationRunners, done);\n\n            var runner = new $$AnimateRunner({\n              end: endFnFactory(),\n              cancel: endFnFactory()\n            });\n\n            return runner;\n\n            function endFnFactory() {\n              return function() {\n                forEach(animationRunners, function(runner) {\n                  // at this point we cannot cancel animations for groups just yet. 1.5+\n                  runner.end();\n                });\n              };\n            }\n\n            function done(status) {\n              runner.complete(status);\n            }\n          }\n        };\n      } else {\n        return prepareAnimation(animationDetails);\n      }\n    };\n\n    function prepareAnimation(animationDetails) {\n      // TODO(matsko): make sure to check for grouped animations and delegate down to normal animations\n      var element = animationDetails.element;\n      var event = animationDetails.event;\n      var options = animationDetails.options;\n      var classes = animationDetails.classes;\n      return $$animateJs(element, event, classes, options);\n    }\n  }];\n}];\n\nvar NG_ANIMATE_ATTR_NAME = 'data-ng-animate';\nvar NG_ANIMATE_PIN_DATA = '$ngAnimatePin';\nvar $$AnimateQueueProvider = ['$animateProvider', function($animateProvider) {\n  var PRE_DIGEST_STATE = 1;\n  var RUNNING_STATE = 2;\n  var ONE_SPACE = ' ';\n\n  var rules = this.rules = {\n    skip: [],\n    cancel: [],\n    join: []\n  };\n\n  function makeTruthyCssClassMap(classString) {\n    if (!classString) {\n      return null;\n    }\n\n    var keys = classString.split(ONE_SPACE);\n    var map = Object.create(null);\n\n    forEach(keys, function(key) {\n      map[key] = true;\n    });\n    return map;\n  }\n\n  function hasMatchingClasses(newClassString, currentClassString) {\n    if (newClassString && currentClassString) {\n      var currentClassMap = makeTruthyCssClassMap(currentClassString);\n      return newClassString.split(ONE_SPACE).some(function(className) {\n        return currentClassMap[className];\n      });\n    }\n  }\n\n  function isAllowed(ruleType, element, currentAnimation, previousAnimation) {\n    return rules[ruleType].some(function(fn) {\n      return fn(element, currentAnimation, previousAnimation);\n    });\n  }\n\n  function hasAnimationClasses(animation, and) {\n    var a = (animation.addClass || '').length > 0;\n    var b = (animation.removeClass || '').length > 0;\n    return and ? a && b : a || b;\n  }\n\n  rules.join.push(function(element, newAnimation, currentAnimation) {\n    // if the new animation is class-based then we can just tack that on\n    return !newAnimation.structural && hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(element, newAnimation, currentAnimation) {\n    // there is no need to animate anything if no classes are being added and\n    // there is no structural animation that will be triggered\n    return !newAnimation.structural && !hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(element, newAnimation, currentAnimation) {\n    // why should we trigger a new structural animation if the element will\n    // be removed from the DOM anyway?\n    return currentAnimation.event == 'leave' && newAnimation.structural;\n  });\n\n  rules.skip.push(function(element, newAnimation, currentAnimation) {\n    // if there is an ongoing current animation then don't even bother running the class-based animation\n    return currentAnimation.structural && currentAnimation.state === RUNNING_STATE && !newAnimation.structural;\n  });\n\n  rules.cancel.push(function(element, newAnimation, currentAnimation) {\n    // there can never be two structural animations running at the same time\n    return currentAnimation.structural && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(element, newAnimation, currentAnimation) {\n    // if the previous animation is already running, but the new animation will\n    // be triggered, but the new animation is structural\n    return currentAnimation.state === RUNNING_STATE && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(element, newAnimation, currentAnimation) {\n    var nA = newAnimation.addClass;\n    var nR = newAnimation.removeClass;\n    var cA = currentAnimation.addClass;\n    var cR = currentAnimation.removeClass;\n\n    // early detection to save the global CPU shortage :)\n    if ((isUndefined(nA) && isUndefined(nR)) || (isUndefined(cA) && isUndefined(cR))) {\n      return false;\n    }\n\n    return hasMatchingClasses(nA, cR) || hasMatchingClasses(nR, cA);\n  });\n\n  this.$get = ['$$rAF', '$rootScope', '$rootElement', '$document', '$$HashMap',\n               '$$animation', '$$AnimateRunner', '$templateRequest', '$$jqLite', '$$forceReflow',\n       function($$rAF,   $rootScope,   $rootElement,   $document,   $$HashMap,\n                $$animation,   $$AnimateRunner,   $templateRequest,   $$jqLite,   $$forceReflow) {\n\n    var activeAnimationsLookup = new $$HashMap();\n    var disabledElementsLookup = new $$HashMap();\n    var animationsEnabled = null;\n    // $document might be mocked out in tests and won't include a real document.\n    // Providing an empty object with hidden = true will prevent animations from running\n    var rawDocument = $document[0] || {hidden: true};\n\n    function postDigestTaskFactory() {\n      var postDigestCalled = false;\n      return function(fn) {\n        // we only issue a call to postDigest before\n        // it has first passed. This prevents any callbacks\n        // from not firing once the animation has completed\n        // since it will be out of the digest cycle.\n        if (postDigestCalled) {\n          fn();\n        } else {\n          $rootScope.$$postDigest(function() {\n            postDigestCalled = true;\n            fn();\n          });\n        }\n      };\n    }\n\n    // Wait until all directive and route-related templates are downloaded and\n    // compiled. The $templateRequest.totalPendingRequests variable keeps track of\n    // all of the remote templates being currently downloaded. If there are no\n    // templates currently downloading then the watcher will still fire anyway.\n    var deregisterWatch = $rootScope.$watch(\n      function() { return $templateRequest.totalPendingRequests === 0; },\n      function(isEmpty) {\n        if (!isEmpty) return;\n        deregisterWatch();\n\n        // Now that all templates have been downloaded, $animate will wait until\n        // the post digest queue is empty before enabling animations. By having two\n        // calls to $postDigest calls we can ensure that the flag is enabled at the\n        // very end of the post digest queue. Since all of the animations in $animate\n        // use $postDigest, it's important that the code below executes at the end.\n        // This basically means that the page is fully downloaded and compiled before\n        // any animations are triggered.\n        $rootScope.$$postDigest(function() {\n          $rootScope.$$postDigest(function() {\n            // we check for null directly in the event that the application already called\n            // .enabled() with whatever arguments that it provided it with\n            if (animationsEnabled === null) {\n              animationsEnabled = true;\n            }\n          });\n        });\n      }\n    );\n\n    var callbackRegistry = {};\n\n    // remember that the classNameFilter is set during the provider/config\n    // stage therefore we can optimize here and setup a helper function\n    var classNameFilter = $animateProvider.classNameFilter();\n    var isAnimatableClassName = !classNameFilter\n              ? function() { return true; }\n              : function(className) {\n                return classNameFilter.test(className);\n              };\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function normalizeAnimationDetails(element, animation) {\n      return mergeAnimationDetails(element, animation, {});\n    }\n\n    // IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\n    var contains = Node.prototype.contains || function(arg) {\n      // jshint bitwise: false\n      return this === arg || !!(this.compareDocumentPosition(arg) & 16);\n      // jshint bitwise: true\n    };\n\n    function findCallbacks(parent, element, event) {\n      var targetNode = getDomNode(element);\n      var targetParentNode = getDomNode(parent);\n\n      var matches = [];\n      var entries = callbackRegistry[event];\n      if (entries) {\n        forEach(entries, function(entry) {\n          if (contains.call(entry.node, targetNode)) {\n            matches.push(entry.callback);\n          } else if (event === 'leave' && contains.call(entry.node, targetParentNode)) {\n            matches.push(entry.callback);\n          }\n        });\n      }\n\n      return matches;\n    }\n\n    return {\n      on: function(event, container, callback) {\n        var node = extractElementNode(container);\n        callbackRegistry[event] = callbackRegistry[event] || [];\n        callbackRegistry[event].push({\n          node: node,\n          callback: callback\n        });\n      },\n\n      off: function(event, container, callback) {\n        var entries = callbackRegistry[event];\n        if (!entries) return;\n\n        callbackRegistry[event] = arguments.length === 1\n            ? null\n            : filterFromRegistry(entries, container, callback);\n\n        function filterFromRegistry(list, matchContainer, matchCallback) {\n          var containerNode = extractElementNode(matchContainer);\n          return list.filter(function(entry) {\n            var isMatch = entry.node === containerNode &&\n                            (!matchCallback || entry.callback === matchCallback);\n            return !isMatch;\n          });\n        }\n      },\n\n      pin: function(element, parentElement) {\n        assertArg(isElement(element), 'element', 'not an element');\n        assertArg(isElement(parentElement), 'parentElement', 'not an element');\n        element.data(NG_ANIMATE_PIN_DATA, parentElement);\n      },\n\n      push: function(element, event, options, domOperation) {\n        options = options || {};\n        options.domOperation = domOperation;\n        return queueAnimation(element, event, options);\n      },\n\n      // this method has four signatures:\n      //  () - global getter\n      //  (bool) - global setter\n      //  (element) - element getter\n      //  (element, bool) - element setter<F37>\n      enabled: function(element, bool) {\n        var argCount = arguments.length;\n\n        if (argCount === 0) {\n          // () - Global getter\n          bool = !!animationsEnabled;\n        } else {\n          var hasElement = isElement(element);\n\n          if (!hasElement) {\n            // (bool) - Global setter\n            bool = animationsEnabled = !!element;\n          } else {\n            var node = getDomNode(element);\n            var recordExists = disabledElementsLookup.get(node);\n\n            if (argCount === 1) {\n              // (element) - Element getter\n              bool = !recordExists;\n            } else {\n              // (element, bool) - Element setter\n              disabledElementsLookup.put(node, !bool);\n            }\n          }\n        }\n\n        return bool;\n      }\n    };\n\n    function queueAnimation(element, event, initialOptions) {\n      // we always make a copy of the options since\n      // there should never be any side effects on\n      // the input data when running `$animateCss`.\n      var options = copy(initialOptions);\n\n      var node, parent;\n      element = stripCommentsFromElement(element);\n      if (element) {\n        node = getDomNode(element);\n        parent = element.parent();\n      }\n\n      options = prepareAnimationOptions(options);\n\n      // we create a fake runner with a working promise.\n      // These methods will become available after the digest has passed\n      var runner = new $$AnimateRunner();\n\n      // this is used to trigger callbacks in postDigest mode\n      var runInNextPostDigestOrNow = postDigestTaskFactory();\n\n      if (isArray(options.addClass)) {\n        options.addClass = options.addClass.join(' ');\n      }\n\n      if (options.addClass && !isString(options.addClass)) {\n        options.addClass = null;\n      }\n\n      if (isArray(options.removeClass)) {\n        options.removeClass = options.removeClass.join(' ');\n      }\n\n      if (options.removeClass && !isString(options.removeClass)) {\n        options.removeClass = null;\n      }\n\n      if (options.from && !isObject(options.from)) {\n        options.from = null;\n      }\n\n      if (options.to && !isObject(options.to)) {\n        options.to = null;\n      }\n\n      // there are situations where a directive issues an animation for\n      // a jqLite wrapper that contains only comment nodes... If this\n      // happens then there is no way we can perform an animation\n      if (!node) {\n        close();\n        return runner;\n      }\n\n      var className = [node.className, options.addClass, options.removeClass].join(' ');\n      if (!isAnimatableClassName(className)) {\n        close();\n        return runner;\n      }\n\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      var documentHidden = rawDocument.hidden;\n\n      // this is a hard disable of all animations for the application or on\n      // the element itself, therefore  there is no need to continue further\n      // past this point if not enabled\n      // Animations are also disabled if the document is currently hidden (page is not visible\n      // to the user), because browsers slow down or do not flush calls to requestAnimationFrame\n      var skipAnimations = !animationsEnabled || documentHidden || disabledElementsLookup.get(node);\n      var existingAnimation = (!skipAnimations && activeAnimationsLookup.get(node)) || {};\n      var hasExistingAnimation = !!existingAnimation.state;\n\n      // there is no point in traversing the same collection of parent ancestors if a followup\n      // animation will be run on the same element that already did all that checking work\n      if (!skipAnimations && (!hasExistingAnimation || existingAnimation.state != PRE_DIGEST_STATE)) {\n        skipAnimations = !areAnimationsAllowed(element, parent, event);\n      }\n\n      if (skipAnimations) {\n        // Callbacks should fire even if the document is hidden (regression fix for issue #14120)\n        if (documentHidden) notifyProgress(runner, event, 'start');\n        close();\n        if (documentHidden) notifyProgress(runner, event, 'close');\n        return runner;\n      }\n\n      if (isStructural) {\n        closeChildAnimations(element);\n      }\n\n      var newAnimation = {\n        structural: isStructural,\n        element: element,\n        event: event,\n        addClass: options.addClass,\n        removeClass: options.removeClass,\n        close: close,\n        options: options,\n        runner: runner\n      };\n\n      if (hasExistingAnimation) {\n        var skipAnimationFlag = isAllowed('skip', element, newAnimation, existingAnimation);\n        if (skipAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            close();\n            return runner;\n          } else {\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n            return existingAnimation.runner;\n          }\n        }\n        var cancelAnimationFlag = isAllowed('cancel', element, newAnimation, existingAnimation);\n        if (cancelAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            // this will end the animation right away and it is safe\n            // to do so since the animation is already running and the\n            // runner callback code will run in async\n            existingAnimation.runner.end();\n          } else if (existingAnimation.structural) {\n            // this means that the animation is queued into a digest, but\n            // hasn't started yet. Therefore it is safe to run the close\n            // method which will call the runner methods in async.\n            existingAnimation.close();\n          } else {\n            // this will merge the new animation options into existing animation options\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n            return existingAnimation.runner;\n          }\n        } else {\n          // a joined animation means that this animation will take over the existing one\n          // so an example would involve a leave animation taking over an enter. Then when\n          // the postDigest kicks in the enter will be ignored.\n          var joinAnimationFlag = isAllowed('join', element, newAnimation, existingAnimation);\n          if (joinAnimationFlag) {\n            if (existingAnimation.state === RUNNING_STATE) {\n              normalizeAnimationDetails(element, newAnimation);\n            } else {\n              applyGeneratedPreparationClasses(element, isStructural ? event : null, options);\n\n              event = newAnimation.event = existingAnimation.event;\n              options = mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n              //we return the same runner since only the option values of this animation will\n              //be fed into the `existingAnimation`.\n              return existingAnimation.runner;\n            }\n          }\n        }\n      } else {\n        // normalization in this case means that it removes redundant CSS classes that\n        // already exist (addClass) or do not exist (removeClass) on the element\n        normalizeAnimationDetails(element, newAnimation);\n      }\n\n      // when the options are merged and cleaned up we may end up not having to do\n      // an animation at all, therefore we should check this before issuing a post\n      // digest callback. Structural animations will always run no matter what.\n      var isValidAnimation = newAnimation.structural;\n      if (!isValidAnimation) {\n        // animate (from/to) can be quickly checked first, otherwise we check if any classes are present\n        isValidAnimation = (newAnimation.event === 'animate' && Object.keys(newAnimation.options.to || {}).length > 0)\n                            || hasAnimationClasses(newAnimation);\n      }\n\n      if (!isValidAnimation) {\n        close();\n        clearElementAnimationState(element);\n        return runner;\n      }\n\n      // the counter keeps track of cancelled animations\n      var counter = (existingAnimation.counter || 0) + 1;\n      newAnimation.counter = counter;\n\n      markElementAnimationState(element, PRE_DIGEST_STATE, newAnimation);\n\n      $rootScope.$$postDigest(function() {\n        var animationDetails = activeAnimationsLookup.get(node);\n        var animationCancelled = !animationDetails;\n        animationDetails = animationDetails || {};\n\n        // if addClass/removeClass is called before something like enter then the\n        // registered parent element may not be present. The code below will ensure\n        // that a final value for parent element is obtained\n        var parentElement = element.parent() || [];\n\n        // animate/structural/class-based animations all have requirements. Otherwise there\n        // is no point in performing an animation. The parent node must also be set.\n        var isValidAnimation = parentElement.length > 0\n                                && (animationDetails.event === 'animate'\n                                    || animationDetails.structural\n                                    || hasAnimationClasses(animationDetails));\n\n        // this means that the previous animation was cancelled\n        // even if the follow-up animation is the same event\n        if (animationCancelled || animationDetails.counter !== counter || !isValidAnimation) {\n          // if another animation did not take over then we need\n          // to make sure that the domOperation and options are\n          // handled accordingly\n          if (animationCancelled) {\n            applyAnimationClasses(element, options);\n            applyAnimationStyles(element, options);\n          }\n\n          // if the event changed from something like enter to leave then we do\n          // it, otherwise if it's the same then the end result will be the same too\n          if (animationCancelled || (isStructural && animationDetails.event !== event)) {\n            options.domOperation();\n            runner.end();\n          }\n\n          // in the event that the element animation was not cancelled or a follow-up animation\n          // isn't allowed to animate from here then we need to clear the state of the element\n          // so that any future animations won't read the expired animation data.\n          if (!isValidAnimation) {\n            clearElementAnimationState(element);\n          }\n\n          return;\n        }\n\n        // this combined multiple class to addClass / removeClass into a setClass event\n        // so long as a structural event did not take over the animation\n        event = !animationDetails.structural && hasAnimationClasses(animationDetails, true)\n            ? 'setClass'\n            : animationDetails.event;\n\n        markElementAnimationState(element, RUNNING_STATE);\n        var realRunner = $$animation(element, event, animationDetails.options);\n\n        // this will update the runner's flow-control events based on\n        // the `realRunner` object.\n        runner.setHost(realRunner);\n        notifyProgress(runner, event, 'start', {});\n\n        realRunner.done(function(status) {\n          close(!status);\n          var animationDetails = activeAnimationsLookup.get(node);\n          if (animationDetails && animationDetails.counter === counter) {\n            clearElementAnimationState(getDomNode(element));\n          }\n          notifyProgress(runner, event, 'close', {});\n        });\n      });\n\n      return runner;\n\n      function notifyProgress(runner, event, phase, data) {\n        runInNextPostDigestOrNow(function() {\n          var callbacks = findCallbacks(parent, element, event);\n          if (callbacks.length) {\n            // do not optimize this call here to RAF because\n            // we don't know how heavy the callback code here will\n            // be and if this code is buffered then this can\n            // lead to a performance regression.\n            $$rAF(function() {\n              forEach(callbacks, function(callback) {\n                callback(element, phase, data);\n              });\n            });\n          }\n        });\n        runner.progress(event, phase, data);\n      }\n\n      function close(reject) { // jshint ignore:line\n        clearGeneratedClasses(element, options);\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n        runner.complete(!reject);\n      }\n    }\n\n    function closeChildAnimations(element) {\n      var node = getDomNode(element);\n      var children = node.querySelectorAll('[' + NG_ANIMATE_ATTR_NAME + ']');\n      forEach(children, function(child) {\n        var state = parseInt(child.getAttribute(NG_ANIMATE_ATTR_NAME));\n        var animationDetails = activeAnimationsLookup.get(child);\n        if (animationDetails) {\n          switch (state) {\n            case RUNNING_STATE:\n              animationDetails.runner.end();\n              /* falls through */\n            case PRE_DIGEST_STATE:\n              activeAnimationsLookup.remove(child);\n              break;\n          }\n        }\n      });\n    }\n\n    function clearElementAnimationState(element) {\n      var node = getDomNode(element);\n      node.removeAttribute(NG_ANIMATE_ATTR_NAME);\n      activeAnimationsLookup.remove(node);\n    }\n\n    function isMatchingElement(nodeOrElmA, nodeOrElmB) {\n      return getDomNode(nodeOrElmA) === getDomNode(nodeOrElmB);\n    }\n\n    /**\n     * This fn returns false if any of the following is true:\n     * a) animations on any parent element are disabled, and animations on the element aren't explicitly allowed\n     * b) a parent element has an ongoing structural animation, and animateChildren is false\n     * c) the element is not a child of the body\n     * d) the element is not a child of the $rootElement\n     */\n    function areAnimationsAllowed(element, parentElement, event) {\n      var bodyElement = jqLite(rawDocument.body);\n      var bodyElementDetected = isMatchingElement(element, bodyElement) || element[0].nodeName === 'HTML';\n      var rootElementDetected = isMatchingElement(element, $rootElement);\n      var parentAnimationDetected = false;\n      var animateChildren;\n      var elementDisabled = disabledElementsLookup.get(getDomNode(element));\n\n      var parentHost = jqLite.data(element[0], NG_ANIMATE_PIN_DATA);\n      if (parentHost) {\n        parentElement = parentHost;\n      }\n\n      parentElement = getDomNode(parentElement);\n\n      while (parentElement) {\n        if (!rootElementDetected) {\n          // angular doesn't want to attempt to animate elements outside of the application\n          // therefore we need to ensure that the rootElement is an ancestor of the current element\n          rootElementDetected = isMatchingElement(parentElement, $rootElement);\n        }\n\n        if (parentElement.nodeType !== ELEMENT_NODE) {\n          // no point in inspecting the #document element\n          break;\n        }\n\n        var details = activeAnimationsLookup.get(parentElement) || {};\n        // either an enter, leave or move animation will commence\n        // therefore we can't allow any animations to take place\n        // but if a parent animation is class-based then that's ok\n        if (!parentAnimationDetected) {\n          var parentElementDisabled = disabledElementsLookup.get(parentElement);\n\n          if (parentElementDisabled === true && elementDisabled !== false) {\n            // disable animations if the user hasn't explicitly enabled animations on the\n            // current element\n            elementDisabled = true;\n            // element is disabled via parent element, no need to check anything else\n            break;\n          } else if (parentElementDisabled === false) {\n            elementDisabled = false;\n          }\n          parentAnimationDetected = details.structural;\n        }\n\n        if (isUndefined(animateChildren) || animateChildren === true) {\n          var value = jqLite.data(parentElement, NG_ANIMATE_CHILDREN_DATA);\n          if (isDefined(value)) {\n            animateChildren = value;\n          }\n        }\n\n        // there is no need to continue traversing at this point\n        if (parentAnimationDetected && animateChildren === false) break;\n\n        if (!bodyElementDetected) {\n          // we also need to ensure that the element is or will be a part of the body element\n          // otherwise it is pointless to even issue an animation to be rendered\n          bodyElementDetected = isMatchingElement(parentElement, bodyElement);\n        }\n\n        if (bodyElementDetected && rootElementDetected) {\n          // If both body and root have been found, any other checks are pointless,\n          // as no animation data should live outside the application\n          break;\n        }\n\n        if (!rootElementDetected) {\n          // If no rootElement is detected, check if the parentElement is pinned to another element\n          parentHost = jqLite.data(parentElement, NG_ANIMATE_PIN_DATA);\n          if (parentHost) {\n            // The pin target element becomes the next parent element\n            parentElement = getDomNode(parentHost);\n            continue;\n          }\n        }\n\n        parentElement = parentElement.parentNode;\n      }\n\n      var allowAnimation = (!parentAnimationDetected || animateChildren) && elementDisabled !== true;\n      return allowAnimation && rootElementDetected && bodyElementDetected;\n    }\n\n    function markElementAnimationState(element, state, details) {\n      details = details || {};\n      details.state = state;\n\n      var node = getDomNode(element);\n      node.setAttribute(NG_ANIMATE_ATTR_NAME, state);\n\n      var oldValue = activeAnimationsLookup.get(node);\n      var newValue = oldValue\n          ? extend(oldValue, details)\n          : details;\n      activeAnimationsLookup.put(node, newValue);\n    }\n  }];\n}];\n\nvar $$AnimationProvider = ['$animateProvider', function($animateProvider) {\n  var NG_ANIMATE_REF_ATTR = 'ng-animate-ref';\n\n  var drivers = this.drivers = [];\n\n  var RUNNER_STORAGE_KEY = '$$animationRunner';\n\n  function setRunner(element, runner) {\n    element.data(RUNNER_STORAGE_KEY, runner);\n  }\n\n  function removeRunner(element) {\n    element.removeData(RUNNER_STORAGE_KEY);\n  }\n\n  function getRunner(element) {\n    return element.data(RUNNER_STORAGE_KEY);\n  }\n\n  this.$get = ['$$jqLite', '$rootScope', '$injector', '$$AnimateRunner', '$$HashMap', '$$rAFScheduler',\n       function($$jqLite,   $rootScope,   $injector,   $$AnimateRunner,   $$HashMap,   $$rAFScheduler) {\n\n    var animationQueue = [];\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function sortAnimations(animations) {\n      var tree = { children: [] };\n      var i, lookup = new $$HashMap();\n\n      // this is done first beforehand so that the hashmap\n      // is filled with a list of the elements that will be animated\n      for (i = 0; i < animations.length; i++) {\n        var animation = animations[i];\n        lookup.put(animation.domNode, animations[i] = {\n          domNode: animation.domNode,\n          fn: animation.fn,\n          children: []\n        });\n      }\n\n      for (i = 0; i < animations.length; i++) {\n        processNode(animations[i]);\n      }\n\n      return flatten(tree);\n\n      function processNode(entry) {\n        if (entry.processed) return entry;\n        entry.processed = true;\n\n        var elementNode = entry.domNode;\n        var parentNode = elementNode.parentNode;\n        lookup.put(elementNode, entry);\n\n        var parentEntry;\n        while (parentNode) {\n          parentEntry = lookup.get(parentNode);\n          if (parentEntry) {\n            if (!parentEntry.processed) {\n              parentEntry = processNode(parentEntry);\n            }\n            break;\n          }\n          parentNode = parentNode.parentNode;\n        }\n\n        (parentEntry || tree).children.push(entry);\n        return entry;\n      }\n\n      function flatten(tree) {\n        var result = [];\n        var queue = [];\n        var i;\n\n        for (i = 0; i < tree.children.length; i++) {\n          queue.push(tree.children[i]);\n        }\n\n        var remainingLevelEntries = queue.length;\n        var nextLevelEntries = 0;\n        var row = [];\n\n        for (i = 0; i < queue.length; i++) {\n          var entry = queue[i];\n          if (remainingLevelEntries <= 0) {\n            remainingLevelEntries = nextLevelEntries;\n            nextLevelEntries = 0;\n            result.push(row);\n            row = [];\n          }\n          row.push(entry.fn);\n          entry.children.forEach(function(childEntry) {\n            nextLevelEntries++;\n            queue.push(childEntry);\n          });\n          remainingLevelEntries--;\n        }\n\n        if (row.length) {\n          result.push(row);\n        }\n\n        return result;\n      }\n    }\n\n    // TODO(matsko): document the signature in a better way\n    return function(element, event, options) {\n      options = prepareAnimationOptions(options);\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      // there is no animation at the current moment, however\n      // these runner methods will get later updated with the\n      // methods leading into the driver's end/cancel methods\n      // for now they just stop the animation from starting\n      var runner = new $$AnimateRunner({\n        end: function() { close(); },\n        cancel: function() { close(true); }\n      });\n\n      if (!drivers.length) {\n        close();\n        return runner;\n      }\n\n      setRunner(element, runner);\n\n      var classes = mergeClasses(element.attr('class'), mergeClasses(options.addClass, options.removeClass));\n      var tempClasses = options.tempClasses;\n      if (tempClasses) {\n        classes += ' ' + tempClasses;\n        options.tempClasses = null;\n      }\n\n      var prepareClassName;\n      if (isStructural) {\n        prepareClassName = 'ng-' + event + PREPARE_CLASS_SUFFIX;\n        $$jqLite.addClass(element, prepareClassName);\n      }\n\n      animationQueue.push({\n        // this data is used by the postDigest code and passed into\n        // the driver step function\n        element: element,\n        classes: classes,\n        event: event,\n        structural: isStructural,\n        options: options,\n        beforeStart: beforeStart,\n        close: close\n      });\n\n      element.on('$destroy', handleDestroyedElement);\n\n      // we only want there to be one function called within the post digest\n      // block. This way we can group animations for all the animations that\n      // were apart of the same postDigest flush call.\n      if (animationQueue.length > 1) return runner;\n\n      $rootScope.$$postDigest(function() {\n        var animations = [];\n        forEach(animationQueue, function(entry) {\n          // the element was destroyed early on which removed the runner\n          // form its storage. This means we can't animate this element\n          // at all and it already has been closed due to destruction.\n          if (getRunner(entry.element)) {\n            animations.push(entry);\n          } else {\n            entry.close();\n          }\n        });\n\n        // now any future animations will be in another postDigest\n        animationQueue.length = 0;\n\n        var groupedAnimations = groupAnimations(animations);\n        var toBeSortedAnimations = [];\n\n        forEach(groupedAnimations, function(animationEntry) {\n          toBeSortedAnimations.push({\n            domNode: getDomNode(animationEntry.from ? animationEntry.from.element : animationEntry.element),\n            fn: function triggerAnimationStart() {\n              // it's important that we apply the `ng-animate` CSS class and the\n              // temporary classes before we do any driver invoking since these\n              // CSS classes may be required for proper CSS detection.\n              animationEntry.beforeStart();\n\n              var startAnimationFn, closeFn = animationEntry.close;\n\n              // in the event that the element was removed before the digest runs or\n              // during the RAF sequencing then we should not trigger the animation.\n              var targetElement = animationEntry.anchors\n                  ? (animationEntry.from.element || animationEntry.to.element)\n                  : animationEntry.element;\n\n              if (getRunner(targetElement)) {\n                var operation = invokeFirstDriver(animationEntry);\n                if (operation) {\n                  startAnimationFn = operation.start;\n                }\n              }\n\n              if (!startAnimationFn) {\n                closeFn();\n              } else {\n                var animationRunner = startAnimationFn();\n                animationRunner.done(function(status) {\n                  closeFn(!status);\n                });\n                updateAnimationRunners(animationEntry, animationRunner);\n              }\n            }\n          });\n        });\n\n        // we need to sort each of the animations in order of parent to child\n        // relationships. This ensures that the child classes are applied at the\n        // right time.\n        $$rAFScheduler(sortAnimations(toBeSortedAnimations));\n      });\n\n      return runner;\n\n      // TODO(matsko): change to reference nodes\n      function getAnchorNodes(node) {\n        var SELECTOR = '[' + NG_ANIMATE_REF_ATTR + ']';\n        var items = node.hasAttribute(NG_ANIMATE_REF_ATTR)\n              ? [node]\n              : node.querySelectorAll(SELECTOR);\n        var anchors = [];\n        forEach(items, function(node) {\n          var attr = node.getAttribute(NG_ANIMATE_REF_ATTR);\n          if (attr && attr.length) {\n            anchors.push(node);\n          }\n        });\n        return anchors;\n      }\n\n      function groupAnimations(animations) {\n        var preparedAnimations = [];\n        var refLookup = {};\n        forEach(animations, function(animation, index) {\n          var element = animation.element;\n          var node = getDomNode(element);\n          var event = animation.event;\n          var enterOrMove = ['enter', 'move'].indexOf(event) >= 0;\n          var anchorNodes = animation.structural ? getAnchorNodes(node) : [];\n\n          if (anchorNodes.length) {\n            var direction = enterOrMove ? 'to' : 'from';\n\n            forEach(anchorNodes, function(anchor) {\n              var key = anchor.getAttribute(NG_ANIMATE_REF_ATTR);\n              refLookup[key] = refLookup[key] || {};\n              refLookup[key][direction] = {\n                animationID: index,\n                element: jqLite(anchor)\n              };\n            });\n          } else {\n            preparedAnimations.push(animation);\n          }\n        });\n\n        var usedIndicesLookup = {};\n        var anchorGroups = {};\n        forEach(refLookup, function(operations, key) {\n          var from = operations.from;\n          var to = operations.to;\n\n          if (!from || !to) {\n            // only one of these is set therefore we can't have an\n            // anchor animation since all three pieces are required\n            var index = from ? from.animationID : to.animationID;\n            var indexKey = index.toString();\n            if (!usedIndicesLookup[indexKey]) {\n              usedIndicesLookup[indexKey] = true;\n              preparedAnimations.push(animations[index]);\n            }\n            return;\n          }\n\n          var fromAnimation = animations[from.animationID];\n          var toAnimation = animations[to.animationID];\n          var lookupKey = from.animationID.toString();\n          if (!anchorGroups[lookupKey]) {\n            var group = anchorGroups[lookupKey] = {\n              structural: true,\n              beforeStart: function() {\n                fromAnimation.beforeStart();\n                toAnimation.beforeStart();\n              },\n              close: function() {\n                fromAnimation.close();\n                toAnimation.close();\n              },\n              classes: cssClassesIntersection(fromAnimation.classes, toAnimation.classes),\n              from: fromAnimation,\n              to: toAnimation,\n              anchors: [] // TODO(matsko): change to reference nodes\n            };\n\n            // the anchor animations require that the from and to elements both have at least\n            // one shared CSS class which effictively marries the two elements together to use\n            // the same animation driver and to properly sequence the anchor animation.\n            if (group.classes.length) {\n              preparedAnimations.push(group);\n            } else {\n              preparedAnimations.push(fromAnimation);\n              preparedAnimations.push(toAnimation);\n            }\n          }\n\n          anchorGroups[lookupKey].anchors.push({\n            'out': from.element, 'in': to.element\n          });\n        });\n\n        return preparedAnimations;\n      }\n\n      function cssClassesIntersection(a,b) {\n        a = a.split(' ');\n        b = b.split(' ');\n        var matches = [];\n\n        for (var i = 0; i < a.length; i++) {\n          var aa = a[i];\n          if (aa.substring(0,3) === 'ng-') continue;\n\n          for (var j = 0; j < b.length; j++) {\n            if (aa === b[j]) {\n              matches.push(aa);\n              break;\n            }\n          }\n        }\n\n        return matches.join(' ');\n      }\n\n      function invokeFirstDriver(animationDetails) {\n        // we loop in reverse order since the more general drivers (like CSS and JS)\n        // may attempt more elements, but custom drivers are more particular\n        for (var i = drivers.length - 1; i >= 0; i--) {\n          var driverName = drivers[i];\n          if (!$injector.has(driverName)) continue; // TODO(matsko): remove this check\n\n          var factory = $injector.get(driverName);\n          var driver = factory(animationDetails);\n          if (driver) {\n            return driver;\n          }\n        }\n      }\n\n      function beforeStart() {\n        element.addClass(NG_ANIMATE_CLASSNAME);\n        if (tempClasses) {\n          $$jqLite.addClass(element, tempClasses);\n        }\n        if (prepareClassName) {\n          $$jqLite.removeClass(element, prepareClassName);\n          prepareClassName = null;\n        }\n      }\n\n      function updateAnimationRunners(animation, newRunner) {\n        if (animation.from && animation.to) {\n          update(animation.from.element);\n          update(animation.to.element);\n        } else {\n          update(animation.element);\n        }\n\n        function update(element) {\n          getRunner(element).setHost(newRunner);\n        }\n      }\n\n      function handleDestroyedElement() {\n        var runner = getRunner(element);\n        if (runner && (event !== 'leave' || !options.$$domOperationFired)) {\n          runner.end();\n        }\n      }\n\n      function close(rejected) { // jshint ignore:line\n        element.off('$destroy', handleDestroyedElement);\n        removeRunner(element);\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n\n        if (tempClasses) {\n          $$jqLite.removeClass(element, tempClasses);\n        }\n\n        element.removeClass(NG_ANIMATE_CLASSNAME);\n        runner.complete(!rejected);\n      }\n    };\n  }];\n}];\n\n/* global angularAnimateModule: true,\n\n   $$AnimateAsyncRunFactory,\n   $$rAFSchedulerFactory,\n   $$AnimateChildrenDirective,\n   $$AnimateQueueProvider,\n   $$AnimationProvider,\n   $AnimateCssProvider,\n   $$AnimateCssDriverProvider,\n   $$AnimateJsProvider,\n   $$AnimateJsDriverProvider,\n*/\n\n/**\n * @ngdoc module\n * @name ngAnimate\n * @description\n *\n * The `ngAnimate` module provides support for CSS-based animations (keyframes and transitions) as well as JavaScript-based animations via\n * callback hooks. Animations are not enabled by default, however, by including `ngAnimate` the animation hooks are enabled for an Angular app.\n *\n * <div doc-module-components=\"ngAnimate\"></div>\n *\n * # Usage\n * Simply put, there are two ways to make use of animations when ngAnimate is used: by using **CSS** and **JavaScript**. The former works purely based\n * using CSS (by using matching CSS selectors/styles) and the latter triggers animations that are registered via `module.animation()`. For\n * both CSS and JS animations the sole requirement is to have a matching `CSS class` that exists both in the registered animation and within\n * the HTML element that the animation will be triggered on.\n *\n * ## Directive Support\n * The following directives are \"animation aware\":\n *\n * | Directive                                                                                                | Supported Animations                                                     |\n * |----------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------|\n * | {@link ng.directive:ngRepeat#animations ngRepeat}                                                        | enter, leave and move                                                    |\n * | {@link ngRoute.directive:ngView#animations ngView}                                                       | enter and leave                                                          |\n * | {@link ng.directive:ngInclude#animations ngInclude}                                                      | enter and leave                                                          |\n * | {@link ng.directive:ngSwitch#animations ngSwitch}                                                        | enter and leave                                                          |\n * | {@link ng.directive:ngIf#animations ngIf}                                                                | enter and leave                                                          |\n * | {@link ng.directive:ngClass#animations ngClass}                                                          | add and remove (the CSS class(es) present)                               |\n * | {@link ng.directive:ngShow#animations ngShow} & {@link ng.directive:ngHide#animations ngHide}            | add and remove (the ng-hide class value)                                 |\n * | {@link ng.directive:form#animation-hooks form} & {@link ng.directive:ngModel#animation-hooks ngModel}    | add and remove (dirty, pristine, valid, invalid & all other validations) |\n * | {@link module:ngMessages#animations ngMessages}                                                          | add and remove (ng-active & ng-inactive)                                 |\n * | {@link module:ngMessages#animations ngMessage}                                                           | enter and leave                                                          |\n *\n * (More information can be found by visiting each the documentation associated with each directive.)\n *\n * ## CSS-based Animations\n *\n * CSS-based animations with ngAnimate are unique since they require no JavaScript code at all. By using a CSS class that we reference between our HTML\n * and CSS code we can create an animation that will be picked up by Angular when an the underlying directive performs an operation.\n *\n * The example below shows how an `enter` animation can be made possible on an element using `ng-if`:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"fade\">\n *    Fade me in out\n * </div>\n * <button ng-click=\"bool=true\">Fade In!</button>\n * <button ng-click=\"bool=false\">Fade Out!</button>\n * ```\n *\n * Notice the CSS class **fade**? We can now create the CSS transition code that references this class:\n *\n * ```css\n * /&#42; The starting CSS styles for the enter animation &#42;/\n * .fade.ng-enter {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n *\n * /&#42; The finishing CSS styles for the enter animation &#42;/\n * .fade.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * ```\n *\n * The key thing to remember here is that, depending on the animation event (which each of the directives above trigger depending on what's going on) two\n * generated CSS classes will be applied to the element; in the example above we have `.ng-enter` and `.ng-enter-active`. For CSS transitions, the transition\n * code **must** be defined within the starting CSS class (in this case `.ng-enter`). The destination class is what the transition will animate towards.\n *\n * If for example we wanted to create animations for `leave` and `move` (ngRepeat triggers move) then we can do so using the same CSS naming conventions:\n *\n * ```css\n * /&#42; now the element will fade out before it is removed from the DOM &#42;/\n * .fade.ng-leave {\n *   transition:0.5s linear all;\n *   opacity:1;\n * }\n * .fade.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * We can also make use of **CSS Keyframes** by referencing the keyframe animation within the starting CSS class:\n *\n * ```css\n * /&#42; there is no need to define anything inside of the destination\n * CSS class since the keyframe will take charge of the animation &#42;/\n * .fade.ng-leave {\n *   animation: my_fade_animation 0.5s linear;\n *   -webkit-animation: my_fade_animation 0.5s linear;\n * }\n *\n * @keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n *\n * @-webkit-keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n * ```\n *\n * Feel free also mix transitions and keyframes together as well as any other CSS classes on the same element.\n *\n * ### CSS Class-based Animations\n *\n * Class-based animations (animations that are triggered via `ngClass`, `ngShow`, `ngHide` and some other directives) have a slightly different\n * naming convention. Class-based animations are basic enough that a standard transition or keyframe can be referenced on the class being added\n * and removed.\n *\n * For example if we wanted to do a CSS animation for `ngHide` then we place an animation on the `.ng-hide` CSS class:\n *\n * ```html\n * <div ng-show=\"bool\" class=\"fade\">\n *   Show and hide me\n * </div>\n * <button ng-click=\"bool=true\">Toggle</button>\n *\n * <style>\n * .fade.ng-hide {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n * </style>\n * ```\n *\n * All that is going on here with ngShow/ngHide behind the scenes is the `.ng-hide` class is added/removed (when the hidden state is valid). Since\n * ngShow and ngHide are animation aware then we can match up a transition and ngAnimate handles the rest.\n *\n * In addition the addition and removal of the CSS class, ngAnimate also provides two helper methods that we can use to further decorate the animation\n * with CSS styles.\n *\n * ```html\n * <div ng-class=\"{on:onOff}\" class=\"highlight\">\n *   Highlight this box\n * </div>\n * <button ng-click=\"onOff=!onOff\">Toggle</button>\n *\n * <style>\n * .highlight {\n *   transition:0.5s linear all;\n * }\n * .highlight.on-add {\n *   background:white;\n * }\n * .highlight.on {\n *   background:yellow;\n * }\n * .highlight.on-remove {\n *   background:black;\n * }\n * </style>\n * ```\n *\n * We can also make use of CSS keyframes by placing them within the CSS classes.\n *\n *\n * ### CSS Staggering Animations\n * A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a\n * curtain-like effect. The ngAnimate module (versions >=1.2) supports staggering animations and the stagger effect can be\n * performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for\n * the animation. The style property expected within the stagger class can either be a **transition-delay** or an\n * **animation-delay** property (or both if your animation contains both transitions and keyframe animations).\n *\n * ```css\n * .my-animation.ng-enter {\n *   /&#42; standard transition code &#42;/\n *   transition: 1s linear all;\n *   opacity:0;\n * }\n * .my-animation.ng-enter-stagger {\n *   /&#42; this will have a 100ms delay between each successive leave animation &#42;/\n *   transition-delay: 0.1s;\n *\n *   /&#42; As of 1.4.4, this must always be set: it signals ngAnimate\n *     to not accidentally inherit a delay property from another CSS class &#42;/\n *   transition-duration: 0s;\n * }\n * .my-animation.ng-enter.ng-enter-active {\n *   /&#42; standard transition styles &#42;/\n *   opacity:1;\n * }\n * ```\n *\n * Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations\n * on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this\n * are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation\n * will also be reset if one or more animation frames have passed since the multiple calls to `$animate` were fired.\n *\n * The following code will issue the **ng-leave-stagger** event on the element provided:\n *\n * ```js\n * var kids = parent.children();\n *\n * $animate.leave(kids[0]); //stagger index=0\n * $animate.leave(kids[1]); //stagger index=1\n * $animate.leave(kids[2]); //stagger index=2\n * $animate.leave(kids[3]); //stagger index=3\n * $animate.leave(kids[4]); //stagger index=4\n *\n * window.requestAnimationFrame(function() {\n *   //stagger has reset itself\n *   $animate.leave(kids[5]); //stagger index=0\n *   $animate.leave(kids[6]); //stagger index=1\n *\n *   $scope.$digest();\n * });\n * ```\n *\n * Stagger animations are currently only supported within CSS-defined animations.\n *\n * ### The `ng-animate` CSS class\n *\n * When ngAnimate is animating an element it will apply the `ng-animate` CSS class to the element for the duration of the animation.\n * This is a temporary CSS class and it will be removed once the animation is over (for both JavaScript and CSS-based animations).\n *\n * Therefore, animations can be applied to an element using this temporary class directly via CSS.\n *\n * ```css\n * .zipper.ng-animate {\n *   transition:0.5s linear all;\n * }\n * .zipper.ng-enter {\n *   opacity:0;\n * }\n * .zipper.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * .zipper.ng-leave {\n *   opacity:1;\n * }\n * .zipper.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * (Note that the `ng-animate` CSS class is reserved and it cannot be applied on an element directly since ngAnimate will always remove\n * the CSS class once an animation has completed.)\n *\n *\n * ### The `ng-[event]-prepare` class\n *\n * This is a special class that can be used to prevent unwanted flickering / flash of content before\n * the actual animation starts. The class is added as soon as an animation is initialized, but removed\n * before the actual animation starts (after waiting for a $digest).\n * It is also only added for *structural* animations (`enter`, `move`, and `leave`).\n *\n * In practice, flickering can appear when nesting elements with structural animations such as `ngIf`\n * into elements that have class-based animations such as `ngClass`.\n *\n * ```html\n * <div ng-class=\"{red: myProp}\">\n *   <div ng-class=\"{blue: myProp}\">\n *     <div class=\"message\" ng-if=\"myProp\"></div>\n *   </div>\n * </div>\n * ```\n *\n * It is possible that during the `enter` animation, the `.message` div will be briefly visible before it starts animating.\n * In that case, you can add styles to the CSS that make sure the element stays hidden before the animation starts:\n *\n * ```css\n * .message.ng-enter-prepare {\n *   opacity: 0;\n * }\n *\n * ```\n *\n * ## JavaScript-based Animations\n *\n * ngAnimate also allows for animations to be consumed by JavaScript code. The approach is similar to CSS-based animations (where there is a shared\n * CSS class that is referenced in our HTML code) but in addition we need to register the JavaScript animation on the module. By making use of the\n * `module.animation()` module function we can register the ainmation.\n *\n * Let's see an example of a enter/leave animation using `ngRepeat`:\n *\n * ```html\n * <div ng-repeat=\"item in items\" class=\"slide\">\n *   {{ item }}\n * </div>\n * ```\n *\n * See the **slide** CSS class? Let's use that class to define an animation that we'll structure in our module code by using `module.animation`:\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     // make note that other events (like addClass/removeClass)\n *     // have different function input parameters\n *     enter: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *\n *       // remember to call doneFn so that angular\n *       // knows that the animation has concluded\n *     },\n *\n *     move: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *     },\n *\n *     leave: function(element, doneFn) {\n *       jQuery(element).fadeOut(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing about JS-based animations is that we can inject other services and make use of advanced animation libraries such as\n * greensock.js and velocity.js.\n *\n * If our animation code class-based (meaning that something like `ngClass`, `ngHide` and `ngShow` triggers it) then we can still define\n * our animations inside of the same registered animation, however, the function input arguments are a bit different:\n *\n * ```html\n * <div ng-class=\"color\" class=\"colorful\">\n *   this box is moody\n * </div>\n * <button ng-click=\"color='red'\">Change to red</button>\n * <button ng-click=\"color='blue'\">Change to blue</button>\n * <button ng-click=\"color='green'\">Change to green</button>\n * ```\n *\n * ```js\n * myModule.animation('.colorful', [function() {\n *   return {\n *     addClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     removeClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     setClass: function(element, addedClass, removedClass, doneFn) {\n *       // do some cool animation and call the doneFn\n *     }\n *   }\n * }]);\n * ```\n *\n * ## CSS + JS Animations Together\n *\n * AngularJS 1.4 and higher has taken steps to make the amalgamation of CSS and JS animations more flexible. However, unlike earlier versions of Angular,\n * defining CSS and JS animations to work off of the same CSS class will not work anymore. Therefore the example below will only result in **JS animations taking\n * charge of the animation**:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"slide\">\n *   Slide in and out\n * </div>\n * ```\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     enter: function(element, doneFn) {\n *       jQuery(element).slideIn(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * ```css\n * .slide.ng-enter {\n *   transition:0.5s linear all;\n *   transform:translateY(-100px);\n * }\n * .slide.ng-enter.ng-enter-active {\n *   transform:translateY(0);\n * }\n * ```\n *\n * Does this mean that CSS and JS animations cannot be used together? Do JS-based animations always have higher priority? We can make up for the\n * lack of CSS animations by using the `$animateCss` service to trigger our own tweaked-out, CSS-based animations directly from\n * our own JS-based animation code:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n*        // this will trigger `.slide.ng-enter` and `.slide.ng-enter-active`.\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing here is that we can save bandwidth by sticking to our CSS-based animation code and we don't need to rely on a 3rd-party animation framework.\n *\n * The `$animateCss` service is very powerful since we can feed in all kinds of extra properties that will be evaluated and fed into a CSS transition or\n * keyframe animation. For example if we wanted to animate the height of an element while adding and removing classes then we can do so by providing that\n * data into `$animateCss` directly:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true,\n *         addClass: 'maroon-setting',\n *         from: { height:0 },\n *         to: { height: 200 }\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Now we can fill in the rest via our transition CSS code:\n *\n * ```css\n * /&#42; the transition tells ngAnimate to make the animation happen &#42;/\n * .slide.ng-enter { transition:0.5s linear all; }\n *\n * /&#42; this extra CSS class will be absorbed into the transition\n * since the $animateCss code is adding the class &#42;/\n * .maroon-setting { background:red; }\n * ```\n *\n * And `$animateCss` will figure out the rest. Just make sure to have the `done()` callback fire the `doneFn` function to signal when the animation is over.\n *\n * To learn more about what's possible be sure to visit the {@link ngAnimate.$animateCss $animateCss service}.\n *\n * ## Animation Anchoring (via `ng-animate-ref`)\n *\n * ngAnimate in AngularJS 1.4 comes packed with the ability to cross-animate elements between\n * structural areas of an application (like views) by pairing up elements using an attribute\n * called `ng-animate-ref`.\n *\n * Let's say for example we have two views that are managed by `ng-view` and we want to show\n * that there is a relationship between two components situated in within these views. By using the\n * `ng-animate-ref` attribute we can identify that the two components are paired together and we\n * can then attach an animation, which is triggered when the view changes.\n *\n * Say for example we have the following template code:\n *\n * ```html\n * <!-- index.html -->\n * <div ng-view class=\"view-animation\">\n * </div>\n *\n * <!-- home.html -->\n * <a href=\"#/banner-page\">\n *   <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * </a>\n *\n * <!-- banner-page.html -->\n * <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * ```\n *\n * Now, when the view changes (once the link is clicked), ngAnimate will examine the\n * HTML contents to see if there is a match reference between any components in the view\n * that is leaving and the view that is entering. It will scan both the view which is being\n * removed (leave) and inserted (enter) to see if there are any paired DOM elements that\n * contain a matching ref value.\n *\n * The two images match since they share the same ref value. ngAnimate will now create a\n * transport element (which is a clone of the first image element) and it will then attempt\n * to animate to the position of the second image element in the next view. For the animation to\n * work a special CSS class called `ng-anchor` will be added to the transported element.\n *\n * We can now attach a transition onto the `.banner.ng-anchor` CSS class and then\n * ngAnimate will handle the entire transition for us as well as the addition and removal of\n * any changes of CSS classes between the elements:\n *\n * ```css\n * .banner.ng-anchor {\n *   /&#42; this animation will last for 1 second since there are\n *          two phases to the animation (an `in` and an `out` phase) &#42;/\n *   transition:0.5s linear all;\n * }\n * ```\n *\n * We also **must** include animations for the views that are being entered and removed\n * (otherwise anchoring wouldn't be possible since the new view would be inserted right away).\n *\n * ```css\n * .view-animation.ng-enter, .view-animation.ng-leave {\n *   transition:0.5s linear all;\n *   position:fixed;\n *   left:0;\n *   top:0;\n *   width:100%;\n * }\n * .view-animation.ng-enter {\n *   transform:translateX(100%);\n * }\n * .view-animation.ng-leave,\n * .view-animation.ng-enter.ng-enter-active {\n *   transform:translateX(0%);\n * }\n * .view-animation.ng-leave.ng-leave-active {\n *   transform:translateX(-100%);\n * }\n * ```\n *\n * Now we can jump back to the anchor animation. When the animation happens, there are two stages that occur:\n * an `out` and an `in` stage. The `out` stage happens first and that is when the element is animated away\n * from its origin. Once that animation is over then the `in` stage occurs which animates the\n * element to its destination. The reason why there are two animations is to give enough time\n * for the enter animation on the new element to be ready.\n *\n * The example above sets up a transition for both the in and out phases, but we can also target the out or\n * in phases directly via `ng-anchor-out` and `ng-anchor-in`.\n *\n * ```css\n * .banner.ng-anchor-out {\n *   transition: 0.5s linear all;\n *\n *   /&#42; the scale will be applied during the out animation,\n *          but will be animated away when the in animation runs &#42;/\n *   transform: scale(1.2);\n * }\n *\n * .banner.ng-anchor-in {\n *   transition: 1s linear all;\n * }\n * ```\n *\n *\n *\n *\n * ### Anchoring Demo\n *\n  <example module=\"anchoringExample\"\n           name=\"anchoringExample\"\n           id=\"anchoringExample\"\n           deps=\"angular-animate.js;angular-route.js\"\n           animations=\"true\">\n    <file name=\"index.html\">\n      <a href=\"#/\">Home</a>\n      <hr />\n      <div class=\"view-container\">\n        <div ng-view class=\"view\"></div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('anchoringExample', ['ngAnimate', 'ngRoute'])\n        .config(['$routeProvider', function($routeProvider) {\n          $routeProvider.when('/', {\n            templateUrl: 'home.html',\n            controller: 'HomeController as home'\n          });\n          $routeProvider.when('/profile/:id', {\n            templateUrl: 'profile.html',\n            controller: 'ProfileController as profile'\n          });\n        }])\n        .run(['$rootScope', function($rootScope) {\n          $rootScope.records = [\n            { id:1, title: \"Miss Beulah Roob\" },\n            { id:2, title: \"Trent Morissette\" },\n            { id:3, title: \"Miss Ava Pouros\" },\n            { id:4, title: \"Rod Pouros\" },\n            { id:5, title: \"Abdul Rice\" },\n            { id:6, title: \"Laurie Rutherford Sr.\" },\n            { id:7, title: \"Nakia McLaughlin\" },\n            { id:8, title: \"Jordon Blanda DVM\" },\n            { id:9, title: \"Rhoda Hand\" },\n            { id:10, title: \"Alexandrea Sauer\" }\n          ];\n        }])\n        .controller('HomeController', [function() {\n          //empty\n        }])\n        .controller('ProfileController', ['$rootScope', '$routeParams', function($rootScope, $routeParams) {\n          var index = parseInt($routeParams.id, 10);\n          var record = $rootScope.records[index - 1];\n\n          this.title = record.title;\n          this.id = record.id;\n        }]);\n    </file>\n    <file name=\"home.html\">\n      <h2>Welcome to the home page</h1>\n      <p>Please click on an element</p>\n      <a class=\"record\"\n         ng-href=\"#/profile/{{ record.id }}\"\n         ng-animate-ref=\"{{ record.id }}\"\n         ng-repeat=\"record in records\">\n        {{ record.title }}\n      </a>\n    </file>\n    <file name=\"profile.html\">\n      <div class=\"profile record\" ng-animate-ref=\"{{ profile.id }}\">\n        {{ profile.title }}\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .record {\n        display:block;\n        font-size:20px;\n      }\n      .profile {\n        background:black;\n        color:white;\n        font-size:100px;\n      }\n      .view-container {\n        position:relative;\n      }\n      .view-container > .view.ng-animate {\n        position:absolute;\n        top:0;\n        left:0;\n        width:100%;\n        min-height:500px;\n      }\n      .view.ng-enter, .view.ng-leave,\n      .record.ng-anchor {\n        transition:0.5s linear all;\n      }\n      .view.ng-enter {\n        transform:translateX(100%);\n      }\n      .view.ng-enter.ng-enter-active, .view.ng-leave {\n        transform:translateX(0%);\n      }\n      .view.ng-leave.ng-leave-active {\n        transform:translateX(-100%);\n      }\n      .record.ng-anchor-out {\n        background:red;\n      }\n    </file>\n  </example>\n *\n * ### How is the element transported?\n *\n * When an anchor animation occurs, ngAnimate will clone the starting element and position it exactly where the starting\n * element is located on screen via absolute positioning. The cloned element will be placed inside of the root element\n * of the application (where ng-app was defined) and all of the CSS classes of the starting element will be applied. The\n * element will then animate into the `out` and `in` animations and will eventually reach the coordinates and match\n * the dimensions of the destination element. During the entire animation a CSS class of `.ng-animate-shim` will be applied\n * to both the starting and destination elements in order to hide them from being visible (the CSS styling for the class\n * is: `visibility:hidden`). Once the anchor reaches its destination then it will be removed and the destination element\n * will become visible since the shim class will be removed.\n *\n * ### How is the morphing handled?\n *\n * CSS Anchoring relies on transitions and keyframes and the internal code is intelligent enough to figure out\n * what CSS classes differ between the starting element and the destination element. These different CSS classes\n * will be added/removed on the anchor element and a transition will be applied (the transition that is provided\n * in the anchor class). Long story short, ngAnimate will figure out what classes to add and remove which will\n * make the transition of the element as smooth and automatic as possible. Be sure to use simple CSS classes that\n * do not rely on DOM nesting structure so that the anchor element appears the same as the starting element (since\n * the cloned element is placed inside of root element which is likely close to the body element).\n *\n * Note that if the root element is on the `<html>` element then the cloned node will be placed inside of body.\n *\n *\n * ## Using $animate in your directive code\n *\n * So far we've explored how to feed in animations into an Angular application, but how do we trigger animations within our own directives in our application?\n * By injecting the `$animate` service into our directive code, we can trigger structural and class-based hooks which can then be consumed by animations. Let's\n * imagine we have a greeting box that shows and hides itself when the data changes\n *\n * ```html\n * <greeting-box active=\"onOrOff\">Hi there</greeting-box>\n * ```\n *\n * ```js\n * ngModule.directive('greetingBox', ['$animate', function($animate) {\n *   return function(scope, element, attrs) {\n *     attrs.$observe('active', function(value) {\n *       value ? $animate.addClass(element, 'on') : $animate.removeClass(element, 'on');\n *     });\n *   });\n * }]);\n * ```\n *\n * Now the `on` CSS class is added and removed on the greeting box component. Now if we add a CSS class on top of the greeting box element\n * in our HTML code then we can trigger a CSS or JS animation to happen.\n *\n * ```css\n * /&#42; normally we would create a CSS class to reference on the element &#42;/\n * greeting-box.on { transition:0.5s linear all; background:green; color:white; }\n * ```\n *\n * The `$animate` service contains a variety of other methods like `enter`, `leave`, `animate` and `setClass`. To learn more about what's\n * possible be sure to visit the {@link ng.$animate $animate service API page}.\n *\n *\n * ### Preventing Collisions With Third Party Libraries\n *\n * Some third-party frameworks place animation duration defaults across many element or className\n * selectors in order to make their code small and reuseable. This can lead to issues with ngAnimate, which\n * is expecting actual animations on these elements and has to wait for their completion.\n *\n * You can prevent this unwanted behavior by using a prefix on all your animation classes:\n *\n * ```css\n * /&#42; prefixed with animate- &#42;/\n * .animate-fade-add.animate-fade-add-active {\n *   transition:1s linear all;\n *   opacity:0;\n * }\n * ```\n *\n * You then configure `$animate` to enforce this prefix:\n *\n * ```js\n * $animateProvider.classNameFilter(/animate-/);\n * ```\n *\n * This also may provide your application with a speed boost since only specific elements containing CSS class prefix\n * will be evaluated for animation when any DOM changes occur in the application.\n *\n * ## Callbacks and Promises\n *\n * When `$animate` is called it returns a promise that can be used to capture when the animation has ended. Therefore if we were to trigger\n * an animation (within our directive code) then we can continue performing directive and scope related activities after the animation has\n * ended by chaining onto the returned promise that animation method returns.\n *\n * ```js\n * // somewhere within the depths of the directive\n * $animate.enter(element, parent).then(function() {\n *   //the animation has completed\n * });\n * ```\n *\n * (Note that earlier versions of Angular prior to v1.4 required the promise code to be wrapped using `$scope.$apply(...)`. This is not the case\n * anymore.)\n *\n * In addition to the animation promise, we can also make use of animation-related callbacks within our directives and controller code by registering\n * an event listener using the `$animate` service. Let's say for example that an animation was triggered on our view\n * routing controller to hook into that:\n *\n * ```js\n * ngModule.controller('HomePageController', ['$animate', function($animate) {\n *   $animate.on('enter', ngViewElement, function(element) {\n *     // the animation for this route has completed\n *   }]);\n * }])\n * ```\n *\n * (Note that you will need to trigger a digest within the callback to get angular to notice any scope-related changes.)\n */\n\n/**\n * @ngdoc service\n * @name $animate\n * @kind object\n *\n * @description\n * The ngAnimate `$animate` service documentation is the same for the core `$animate` service.\n *\n * Click here {@link ng.$animate to learn more about animations with `$animate`}.\n */\nangular.module('ngAnimate', [])\n  .directive('ngAnimateChildren', $$AnimateChildrenDirective)\n  .factory('$$rAFScheduler', $$rAFSchedulerFactory)\n\n  .provider('$$animateQueue', $$AnimateQueueProvider)\n  .provider('$$animation', $$AnimationProvider)\n\n  .provider('$animateCss', $AnimateCssProvider)\n  .provider('$$animateCssDriver', $$AnimateCssDriverProvider)\n\n  .provider('$$animateJs', $$AnimateJsProvider)\n  .provider('$$animateJsDriver', $$AnimateJsDriverProvider);\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.4/angular-mocks.js",
    "content": "/**\n * @license AngularJS v1.4.14\n * (c) 2010-2015 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular, undefined) {\n\n'use strict';\n\n/**\n * @ngdoc object\n * @name angular.mock\n * @description\n *\n * Namespace from 'angular-mocks.js' which contains testing related code.\n */\nangular.mock = {};\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n *\n * @description\n * This service is a mock implementation of {@link ng.$browser}. It provides fake\n * implementation for commonly used browser apis that are hard to test, e.g. setTimeout, xhr,\n * cookies, etc...\n *\n * The api of this service is the same as that of the real {@link ng.$browser $browser}, except\n * that there are several helper methods available which can be used in tests.\n */\nangular.mock.$BrowserProvider = function() {\n  this.$get = function() {\n    return new angular.mock.$Browser();\n  };\n};\n\nangular.mock.$Browser = function() {\n  var self = this;\n\n  this.isMock = true;\n  self.$$url = \"http://server/\";\n  self.$$lastUrl = self.$$url; // used by url polling fn\n  self.pollFns = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = angular.noop;\n  self.$$incOutstandingRequestCount = angular.noop;\n\n\n  // register url polling fn\n\n  self.onUrlChange = function(listener) {\n    self.pollFns.push(\n      function() {\n        if (self.$$lastUrl !== self.$$url || self.$$state !== self.$$lastState) {\n          self.$$lastUrl = self.$$url;\n          self.$$lastState = self.$$state;\n          listener(self.$$url, self.$$state);\n        }\n      }\n    );\n\n    return listener;\n  };\n\n  self.$$applicationDestroyed = angular.noop;\n  self.$$checkUrlChange = angular.noop;\n\n  self.deferredFns = [];\n  self.deferredNextId = 0;\n\n  self.defer = function(fn, delay) {\n    delay = delay || 0;\n    self.deferredFns.push({time:(self.defer.now + delay), fn:fn, id: self.deferredNextId});\n    self.deferredFns.sort(function(a, b) { return a.time - b.time;});\n    return self.deferredNextId++;\n  };\n\n\n  /**\n   * @name $browser#defer.now\n   *\n   * @description\n   * Current milliseconds mock time.\n   */\n  self.defer.now = 0;\n\n\n  self.defer.cancel = function(deferId) {\n    var fnIndex;\n\n    angular.forEach(self.deferredFns, function(fn, index) {\n      if (fn.id === deferId) fnIndex = index;\n    });\n\n    if (angular.isDefined(fnIndex)) {\n      self.deferredFns.splice(fnIndex, 1);\n      return true;\n    }\n\n    return false;\n  };\n\n\n  /**\n   * @name $browser#defer.flush\n   *\n   * @description\n   * Flushes all pending requests and executes the defer callbacks.\n   *\n   * @param {number=} number of milliseconds to flush. See {@link #defer.now}\n   */\n  self.defer.flush = function(delay) {\n    if (angular.isDefined(delay)) {\n      self.defer.now += delay;\n    } else {\n      if (self.deferredFns.length) {\n        self.defer.now = self.deferredFns[self.deferredFns.length - 1].time;\n      } else {\n        throw new Error('No deferred tasks to be flushed');\n      }\n    }\n\n    while (self.deferredFns.length && self.deferredFns[0].time <= self.defer.now) {\n      self.deferredFns.shift().fn();\n    }\n  };\n\n  self.$$baseHref = '/';\n  self.baseHref = function() {\n    return this.$$baseHref;\n  };\n};\nangular.mock.$Browser.prototype = {\n\n/**\n  * @name $browser#poll\n  *\n  * @description\n  * run all fns in pollFns\n  */\n  poll: function poll() {\n    angular.forEach(this.pollFns, function(pollFn) {\n      pollFn();\n    });\n  },\n\n  url: function(url, replace, state) {\n    if (angular.isUndefined(state)) {\n      state = null;\n    }\n    if (url) {\n      this.$$url = url;\n      // Native pushState serializes & copies the object; simulate it.\n      this.$$state = angular.copy(state);\n      return this;\n    }\n\n    return this.$$url;\n  },\n\n  state: function() {\n    return this.$$state;\n  },\n\n  notifyWhenNoOutstandingRequests: function(fn) {\n    fn();\n  }\n};\n\n\n/**\n * @ngdoc provider\n * @name $exceptionHandlerProvider\n *\n * @description\n * Configures the mock implementation of {@link ng.$exceptionHandler} to rethrow or to log errors\n * passed to the `$exceptionHandler`.\n */\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n *\n * @description\n * Mock implementation of {@link ng.$exceptionHandler} that rethrows or logs errors passed\n * to it. See {@link ngMock.$exceptionHandlerProvider $exceptionHandlerProvider} for configuration\n * information.\n *\n *\n * ```js\n *   describe('$exceptionHandlerProvider', function() {\n *\n *     it('should capture log messages and exceptions', function() {\n *\n *       module(function($exceptionHandlerProvider) {\n *         $exceptionHandlerProvider.mode('log');\n *       });\n *\n *       inject(function($log, $exceptionHandler, $timeout) {\n *         $timeout(function() { $log.log(1); });\n *         $timeout(function() { $log.log(2); throw 'banana peel'; });\n *         $timeout(function() { $log.log(3); });\n *         expect($exceptionHandler.errors).toEqual([]);\n *         expect($log.assertEmpty());\n *         $timeout.flush();\n *         expect($exceptionHandler.errors).toEqual(['banana peel']);\n *         expect($log.log.logs).toEqual([[1], [2], [3]]);\n *       });\n *     });\n *   });\n * ```\n */\n\nangular.mock.$ExceptionHandlerProvider = function() {\n  var handler;\n\n  /**\n   * @ngdoc method\n   * @name $exceptionHandlerProvider#mode\n   *\n   * @description\n   * Sets the logging mode.\n   *\n   * @param {string} mode Mode of operation, defaults to `rethrow`.\n   *\n   *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log`\n   *            mode stores an array of errors in `$exceptionHandler.errors`, to allow later\n   *            assertion of them. See {@link ngMock.$log#assertEmpty assertEmpty()} and\n   *            {@link ngMock.$log#reset reset()}\n   *   - `rethrow`: If any errors are passed to the handler in tests, it typically means that there\n   *                is a bug in the application or test, so this mock will make these tests fail.\n   *                For any implementations that expect exceptions to be thrown, the `rethrow` mode\n   *                will also maintain a log of thrown errors.\n   */\n  this.mode = function(mode) {\n\n    switch (mode) {\n      case 'log':\n      case 'rethrow':\n        var errors = [];\n        handler = function(e) {\n          if (arguments.length == 1) {\n            errors.push(e);\n          } else {\n            errors.push([].slice.call(arguments, 0));\n          }\n          if (mode === \"rethrow\") {\n            throw e;\n          }\n        };\n        handler.errors = errors;\n        break;\n      default:\n        throw new Error(\"Unknown mode '\" + mode + \"', only 'log'/'rethrow' modes are allowed!\");\n    }\n  };\n\n  this.$get = function() {\n    return handler;\n  };\n\n  this.mode('rethrow');\n};\n\n\n/**\n * @ngdoc service\n * @name $log\n *\n * @description\n * Mock implementation of {@link ng.$log} that gathers all logged messages in arrays\n * (one array per logging level). These arrays are exposed as `logs` property of each of the\n * level-specific log function, e.g. for level `error` the array is exposed as `$log.error.logs`.\n *\n */\nangular.mock.$LogProvider = function() {\n  var debug = true;\n\n  function concat(array1, array2, index) {\n    return array1.concat(Array.prototype.slice.call(array2, index));\n  }\n\n  this.debugEnabled = function(flag) {\n    if (angular.isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = function() {\n    var $log = {\n      log: function() { $log.log.logs.push(concat([], arguments, 0)); },\n      warn: function() { $log.warn.logs.push(concat([], arguments, 0)); },\n      info: function() { $log.info.logs.push(concat([], arguments, 0)); },\n      error: function() { $log.error.logs.push(concat([], arguments, 0)); },\n      debug: function() {\n        if (debug) {\n          $log.debug.logs.push(concat([], arguments, 0));\n        }\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#reset\n     *\n     * @description\n     * Reset all of the logging arrays to empty.\n     */\n    $log.reset = function() {\n      /**\n       * @ngdoc property\n       * @name $log#log.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#log `log()`}.\n       *\n       * @example\n       * ```js\n       * $log.log('Some Log');\n       * var first = $log.log.logs.unshift();\n       * ```\n       */\n      $log.log.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#info.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#info `info()`}.\n       *\n       * @example\n       * ```js\n       * $log.info('Some Info');\n       * var first = $log.info.logs.unshift();\n       * ```\n       */\n      $log.info.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#warn.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#warn `warn()`}.\n       *\n       * @example\n       * ```js\n       * $log.warn('Some Warning');\n       * var first = $log.warn.logs.unshift();\n       * ```\n       */\n      $log.warn.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#error.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#error `error()`}.\n       *\n       * @example\n       * ```js\n       * $log.error('Some Error');\n       * var first = $log.error.logs.unshift();\n       * ```\n       */\n      $log.error.logs = [];\n        /**\n       * @ngdoc property\n       * @name $log#debug.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#debug `debug()`}.\n       *\n       * @example\n       * ```js\n       * $log.debug('Some Error');\n       * var first = $log.debug.logs.unshift();\n       * ```\n       */\n      $log.debug.logs = [];\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#assertEmpty\n     *\n     * @description\n     * Assert that all of the logging methods have no logged messages. If any messages are present,\n     * an exception is thrown.\n     */\n    $log.assertEmpty = function() {\n      var errors = [];\n      angular.forEach(['error', 'warn', 'info', 'log', 'debug'], function(logLevel) {\n        angular.forEach($log[logLevel].logs, function(log) {\n          angular.forEach(log, function(logItem) {\n            errors.push('MOCK $log (' + logLevel + '): ' + String(logItem) + '\\n' +\n                        (logItem.stack || ''));\n          });\n        });\n      });\n      if (errors.length) {\n        errors.unshift(\"Expected $log to be empty! Either a message was logged unexpectedly, or \" +\n          \"an expected log message was not checked and removed:\");\n        errors.push('');\n        throw new Error(errors.join('\\n---------\\n'));\n      }\n    };\n\n    $log.reset();\n    return $log;\n  };\n};\n\n\n/**\n * @ngdoc service\n * @name $interval\n *\n * @description\n * Mock implementation of the $interval service.\n *\n * Use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n * time.\n *\n * @param {function()} fn A function that should be called repeatedly.\n * @param {number} delay Number of milliseconds between each function call.\n * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n *   indefinitely.\n * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n * @param {...*=} Pass additional parameters to the executed function.\n * @returns {promise} A promise which will be notified on each iteration.\n */\nangular.mock.$IntervalProvider = function() {\n  this.$get = ['$browser', '$rootScope', '$q', '$$q',\n       function($browser,   $rootScope,   $q,   $$q) {\n    var repeatFns = [],\n        nextRepeatId = 0,\n        now = 0;\n\n    var $interval = function(fn, delay, count, invokeApply) {\n      var hasParams = arguments.length > 4,\n          args = hasParams ? Array.prototype.slice.call(arguments, 4) : [],\n          iteration = 0,\n          skipApply = (angular.isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = (angular.isDefined(count)) ? count : 0;\n      promise.then(null, null, (!hasParams) ? fn : function() {\n        fn.apply(null, args);\n      });\n\n      promise.$$intervalId = nextRepeatId;\n\n      function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          var fnIndex;\n          deferred.resolve(iteration);\n\n          angular.forEach(repeatFns, function(fn, index) {\n            if (fn.id === promise.$$intervalId) fnIndex = index;\n          });\n\n          if (angular.isDefined(fnIndex)) {\n            repeatFns.splice(fnIndex, 1);\n          }\n        }\n\n        if (skipApply) {\n          $browser.defer.flush();\n        } else {\n          $rootScope.$apply();\n        }\n      }\n\n      repeatFns.push({\n        nextTime:(now + delay),\n        delay: delay,\n        fn: tick,\n        id: nextRepeatId,\n        deferred: deferred\n      });\n      repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n\n      nextRepeatId++;\n      return promise;\n    };\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {promise} promise A promise from calling the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully cancelled.\n     */\n    $interval.cancel = function(promise) {\n      if (!promise) return false;\n      var fnIndex;\n\n      angular.forEach(repeatFns, function(fn, index) {\n        if (fn.id === promise.$$intervalId) fnIndex = index;\n      });\n\n      if (angular.isDefined(fnIndex)) {\n        repeatFns[fnIndex].deferred.reject('canceled');\n        repeatFns.splice(fnIndex, 1);\n        return true;\n      }\n\n      return false;\n    };\n\n    /**\n     * @ngdoc method\n     * @name $interval#flush\n     * @description\n     *\n     * Runs interval tasks scheduled to be run in the next `millis` milliseconds.\n     *\n     * @param {number=} millis maximum timeout amount to flush up until.\n     *\n     * @return {number} The amount of time moved forward.\n     */\n    $interval.flush = function(millis) {\n      now += millis;\n      while (repeatFns.length && repeatFns[0].nextTime <= now) {\n        var task = repeatFns[0];\n        task.fn();\n        task.nextTime += task.delay;\n        repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n      }\n      return millis;\n    };\n\n    return $interval;\n  }];\n};\n\n\n/* jshint -W101 */\n/* The R_ISO8061_STR regex is never going to fit into the 100 char limit!\n * This directive should go inside the anonymous function but a bug in JSHint means that it would\n * not be enacted early enough to prevent the warning.\n */\nvar R_ISO8061_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?:\\:?(\\d\\d)(?:\\:?(\\d\\d)(?:\\.(\\d{3}))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d)))?$/;\n\nfunction jsonStringToDate(string) {\n  var match;\n  if (match = string.match(R_ISO8061_STR)) {\n    var date = new Date(0),\n        tzHour = 0,\n        tzMin  = 0;\n    if (match[9]) {\n      tzHour = toInt(match[9] + match[10]);\n      tzMin = toInt(match[9] + match[11]);\n    }\n    date.setUTCFullYear(toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n    date.setUTCHours(toInt(match[4] || 0) - tzHour,\n                     toInt(match[5] || 0) - tzMin,\n                     toInt(match[6] || 0),\n                     toInt(match[7] || 0));\n    return date;\n  }\n  return string;\n}\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nfunction padNumber(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while (num.length < digits) num = '0' + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\n/**\n * @ngdoc type\n * @name angular.mock.TzDate\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.\n *\n * Mock of the Date type which has its timezone specified via constructor arg.\n *\n * The main purpose is to create Date-like instances with timezone fixed to the specified timezone\n * offset, so that we can test code that depends on local timezone settings without dependency on\n * the time zone settings of the machine where the code is running.\n *\n * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)\n * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*\n *\n * @example\n * !!!! WARNING !!!!!\n * This is not a complete Date object so only methods that were implemented can be called safely.\n * To make matters worse, TzDate instances inherit stuff from Date via a prototype.\n *\n * We do our best to intercept calls to \"unimplemented\" methods, but since the list of methods is\n * incomplete we might be missing some non-standard methods. This can result in errors like:\n * \"Date.prototype.foo called on incompatible Object\".\n *\n * ```js\n * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');\n * newYearInBratislava.getTimezoneOffset() => -60;\n * newYearInBratislava.getFullYear() => 2010;\n * newYearInBratislava.getMonth() => 0;\n * newYearInBratislava.getDate() => 1;\n * newYearInBratislava.getHours() => 0;\n * newYearInBratislava.getMinutes() => 0;\n * newYearInBratislava.getSeconds() => 0;\n * ```\n *\n */\nangular.mock.TzDate = function(offset, timestamp) {\n  var self = new Date(0);\n  if (angular.isString(timestamp)) {\n    var tsStr = timestamp;\n\n    self.origDate = jsonStringToDate(timestamp);\n\n    timestamp = self.origDate.getTime();\n    if (isNaN(timestamp)) {\n      throw {\n        name: \"Illegal Argument\",\n        message: \"Arg '\" + tsStr + \"' passed into TzDate constructor is not a valid date string\"\n      };\n    }\n  } else {\n    self.origDate = new Date(timestamp);\n  }\n\n  var localOffset = new Date(timestamp).getTimezoneOffset();\n  self.offsetDiff = localOffset * 60 * 1000 - offset * 1000 * 60 * 60;\n  self.date = new Date(timestamp + self.offsetDiff);\n\n  self.getTime = function() {\n    return self.date.getTime() - self.offsetDiff;\n  };\n\n  self.toLocaleDateString = function() {\n    return self.date.toLocaleDateString();\n  };\n\n  self.getFullYear = function() {\n    return self.date.getFullYear();\n  };\n\n  self.getMonth = function() {\n    return self.date.getMonth();\n  };\n\n  self.getDate = function() {\n    return self.date.getDate();\n  };\n\n  self.getHours = function() {\n    return self.date.getHours();\n  };\n\n  self.getMinutes = function() {\n    return self.date.getMinutes();\n  };\n\n  self.getSeconds = function() {\n    return self.date.getSeconds();\n  };\n\n  self.getMilliseconds = function() {\n    return self.date.getMilliseconds();\n  };\n\n  self.getTimezoneOffset = function() {\n    return offset * 60;\n  };\n\n  self.getUTCFullYear = function() {\n    return self.origDate.getUTCFullYear();\n  };\n\n  self.getUTCMonth = function() {\n    return self.origDate.getUTCMonth();\n  };\n\n  self.getUTCDate = function() {\n    return self.origDate.getUTCDate();\n  };\n\n  self.getUTCHours = function() {\n    return self.origDate.getUTCHours();\n  };\n\n  self.getUTCMinutes = function() {\n    return self.origDate.getUTCMinutes();\n  };\n\n  self.getUTCSeconds = function() {\n    return self.origDate.getUTCSeconds();\n  };\n\n  self.getUTCMilliseconds = function() {\n    return self.origDate.getUTCMilliseconds();\n  };\n\n  self.getDay = function() {\n    return self.date.getDay();\n  };\n\n  // provide this method only on browsers that already have it\n  if (self.toISOString) {\n    self.toISOString = function() {\n      return padNumber(self.origDate.getUTCFullYear(), 4) + '-' +\n            padNumber(self.origDate.getUTCMonth() + 1, 2) + '-' +\n            padNumber(self.origDate.getUTCDate(), 2) + 'T' +\n            padNumber(self.origDate.getUTCHours(), 2) + ':' +\n            padNumber(self.origDate.getUTCMinutes(), 2) + ':' +\n            padNumber(self.origDate.getUTCSeconds(), 2) + '.' +\n            padNumber(self.origDate.getUTCMilliseconds(), 3) + 'Z';\n    };\n  }\n\n  //hide all methods not implemented in this mock that the Date prototype exposes\n  var unimplementedMethods = ['getUTCDay',\n      'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',\n      'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',\n      'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',\n      'setYear', 'toDateString', 'toGMTString', 'toJSON', 'toLocaleFormat', 'toLocaleString',\n      'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];\n\n  angular.forEach(unimplementedMethods, function(methodName) {\n    self[methodName] = function() {\n      throw new Error(\"Method '\" + methodName + \"' is not implemented in the TzDate mock\");\n    };\n  });\n\n  return self;\n};\n\n//make \"tzDateInstance instanceof Date\" return true\nangular.mock.TzDate.prototype = Date.prototype;\n/* jshint +W101 */\n\n\n/**\n * @ngdoc service\n * @name $animate\n *\n * @description\n * Mock implementation of the {@link ng.$animate `$animate`} service. Exposes two additional methods\n * for testing animations.\n */\nangular.mock.animate = angular.module('ngAnimateMock', ['ng'])\n\n  .config(['$provide', function($provide) {\n\n    $provide.factory('$$forceReflow', function() {\n      function reflowFn() {\n        reflowFn.totalReflows++;\n      }\n      reflowFn.totalReflows = 0;\n      return reflowFn;\n    });\n\n    $provide.factory('$$animateAsyncRun', function() {\n      var queue = [];\n      var queueFn = function() {\n        return function(fn) {\n          queue.push(fn);\n        };\n      };\n      queueFn.flush = function() {\n        if (queue.length === 0) return false;\n\n        for (var i = 0; i < queue.length; i++) {\n          queue[i]();\n        }\n        queue = [];\n\n        return true;\n      };\n      return queueFn;\n    });\n\n    $provide.decorator('$$animateJs', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateJsConstructor = function() {\n        var animator = $delegate.apply($delegate, arguments);\n        // If no javascript animation is found, animator is undefined\n        if (animator) {\n          runners.push(animator);\n        }\n        return animator;\n      };\n\n      animateJsConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateJsConstructor;\n    }]);\n\n    $provide.decorator('$animateCss', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateCssConstructor = function(element, options) {\n        var animator = $delegate(element, options);\n        runners.push(animator);\n        return animator;\n      };\n\n      animateCssConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateCssConstructor;\n    }]);\n\n    $provide.decorator('$animate', ['$delegate', '$timeout', '$browser', '$$rAF', '$animateCss', '$$animateJs',\n                                    '$$forceReflow', '$$animateAsyncRun', '$rootScope',\n                            function($delegate,   $timeout,   $browser,   $$rAF,   $animateCss,   $$animateJs,\n                                     $$forceReflow,   $$animateAsyncRun,  $rootScope) {\n      var animate = {\n        queue: [],\n        cancel: $delegate.cancel,\n        on: $delegate.on,\n        off: $delegate.off,\n        pin: $delegate.pin,\n        get reflows() {\n          return $$forceReflow.totalReflows;\n        },\n        enabled: $delegate.enabled,\n        /**\n         * @ngdoc method\n         * @name $animate#closeAndFlush\n         * @description\n         *\n         * This method will close all pending animations (both {@link ngAnimate#javascript-based-animations Javascript}\n         * and {@link ngAnimate.$animateCss CSS}) and it will also flush any remaining animation frames and/or callbacks.\n         */\n        closeAndFlush: function() {\n          // we allow the flush command to swallow the errors\n          // because depending on whether CSS or JS animations are\n          // used, there may not be a RAF flush. The primary flush\n          // at the end of this function must throw an exception\n          // because it will track if there were pending animations\n          this.flush(true);\n          $animateCss.$closeAndFlush();\n          $$animateJs.$closeAndFlush();\n          this.flush();\n        },\n        /**\n         * @ngdoc method\n         * @name $animate#flush\n         * @description\n         *\n         * This method is used to flush the pending callbacks and animation frames to either start\n         * an animation or conclude an animation. Note that this will not actually close an\n         * actively running animation (see {@link ngMock.$animate#closeAndFlush `closeAndFlush()`} for that).\n         */\n        flush: function(hideErrors) {\n          $rootScope.$digest();\n\n          var doNextRun, somethingFlushed = false;\n          do {\n            doNextRun = false;\n\n            if ($$rAF.queue.length) {\n              $$rAF.flush();\n              doNextRun = somethingFlushed = true;\n            }\n\n            if ($$animateAsyncRun.flush()) {\n              doNextRun = somethingFlushed = true;\n            }\n          } while (doNextRun);\n\n          if (!somethingFlushed && !hideErrors) {\n            throw new Error('No pending animations ready to be closed or flushed');\n          }\n\n          $rootScope.$digest();\n        }\n      };\n\n      angular.forEach(\n        ['animate','enter','leave','move','addClass','removeClass','setClass'], function(method) {\n        animate[method] = function() {\n          animate.queue.push({\n            event: method,\n            element: arguments[0],\n            options: arguments[arguments.length - 1],\n            args: arguments\n          });\n          return $delegate[method].apply($delegate, arguments);\n        };\n      });\n\n      return animate;\n    }]);\n\n  }]);\n\n\n/**\n * @ngdoc function\n * @name angular.mock.dump\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available function.\n *\n * Method for serializing common angular objects (scope, elements, etc..) into strings, useful for\n * debugging.\n *\n * This method is also available on window, where it can be used to display objects on debug\n * console.\n *\n * @param {*} object - any object to turn into string.\n * @return {string} a serialized string of the argument\n */\nangular.mock.dump = function(object) {\n  return serialize(object);\n\n  function serialize(object) {\n    var out;\n\n    if (angular.isElement(object)) {\n      object = angular.element(object);\n      out = angular.element('<div></div>');\n      angular.forEach(object, function(element) {\n        out.append(angular.element(element).clone());\n      });\n      out = out.html();\n    } else if (angular.isArray(object)) {\n      out = [];\n      angular.forEach(object, function(o) {\n        out.push(serialize(o));\n      });\n      out = '[ ' + out.join(', ') + ' ]';\n    } else if (angular.isObject(object)) {\n      if (angular.isFunction(object.$eval) && angular.isFunction(object.$apply)) {\n        out = serializeScope(object);\n      } else if (object instanceof Error) {\n        out = object.stack || ('' + object.name + ': ' + object.message);\n      } else {\n        // TODO(i): this prevents methods being logged,\n        // we should have a better way to serialize objects\n        out = angular.toJson(object, true);\n      }\n    } else {\n      out = String(object);\n    }\n\n    return out;\n  }\n\n  function serializeScope(scope, offset) {\n    offset = offset ||  '  ';\n    var log = [offset + 'Scope(' + scope.$id + '): {'];\n    for (var key in scope) {\n      if (Object.prototype.hasOwnProperty.call(scope, key) && !key.match(/^(\\$|this)/)) {\n        log.push('  ' + key + ': ' + angular.toJson(scope[key]));\n      }\n    }\n    var child = scope.$$childHead;\n    while (child) {\n      log.push(serializeScope(child, offset + '  '));\n      child = child.$$nextSibling;\n    }\n    log.push('}');\n    return log.join('\\n' + offset);\n  }\n};\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @description\n * Fake HTTP backend implementation suitable for unit testing applications that use the\n * {@link ng.$http $http service}.\n *\n * *Note*: For fake HTTP backend implementation suitable for end-to-end testing or backend-less\n * development please see {@link ngMockE2E.$httpBackend e2e $httpBackend mock}.\n *\n * During unit testing, we want our unit tests to run quickly and have no external dependencies so\n * we don’t want to send [XHR](https://developer.mozilla.org/en/xmlhttprequest) or\n * [JSONP](http://en.wikipedia.org/wiki/JSONP) requests to a real server. All we really need is\n * to verify whether a certain request has been sent or not, or alternatively just let the\n * application make requests, respond with pre-trained responses and assert that the end result is\n * what we expect it to be.\n *\n * This mock implementation can be used to respond with static or dynamic responses via the\n * `expect` and `when` apis and their shortcuts (`expectGET`, `whenPOST`, etc).\n *\n * When an Angular application needs some data from a server, it calls the $http service, which\n * sends the request to a real server using $httpBackend service. With dependency injection, it is\n * easy to inject $httpBackend mock (which has the same API as $httpBackend) and use it to verify\n * the requests and respond with some testing data without sending a request to a real server.\n *\n * There are two ways to specify what test data should be returned as http responses by the mock\n * backend when the code under test makes http requests:\n *\n * - `$httpBackend.expect` - specifies a request expectation\n * - `$httpBackend.when` - specifies a backend definition\n *\n *\n * # Request Expectations vs Backend Definitions\n *\n * Request expectations provide a way to make assertions about requests made by the application and\n * to define responses for those requests. The test will fail if the expected requests are not made\n * or they are made in the wrong order.\n *\n * Backend definitions allow you to define a fake backend for your application which doesn't assert\n * if a particular request was made or not, it just returns a trained response if a request is made.\n * The test will pass whether or not the request gets made during testing.\n *\n *\n * <table class=\"table\">\n *   <tr><th width=\"220px\"></th><th>Request expectations</th><th>Backend definitions</th></tr>\n *   <tr>\n *     <th>Syntax</th>\n *     <td>.expect(...).respond(...)</td>\n *     <td>.when(...).respond(...)</td>\n *   </tr>\n *   <tr>\n *     <th>Typical usage</th>\n *     <td>strict unit tests</td>\n *     <td>loose (black-box) unit testing</td>\n *   </tr>\n *   <tr>\n *     <th>Fulfills multiple requests</th>\n *     <td>NO</td>\n *     <td>YES</td>\n *   </tr>\n *   <tr>\n *     <th>Order of requests matters</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Request required</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Response required</th>\n *     <td>optional (see below)</td>\n *     <td>YES</td>\n *   </tr>\n * </table>\n *\n * In cases where both backend definitions and request expectations are specified during unit\n * testing, the request expectations are evaluated first.\n *\n * If a request expectation has no response specified, the algorithm will search your backend\n * definitions for an appropriate response.\n *\n * If a request didn't match any expectation or if the expectation doesn't have the response\n * defined, the backend definitions are evaluated in sequential order to see if any of them match\n * the request. The response from the first matched definition is returned.\n *\n *\n * # Flushing HTTP requests\n *\n * The $httpBackend used in production always responds to requests asynchronously. If we preserved\n * this behavior in unit testing, we'd have to create async unit tests, which are hard to write,\n * to follow and to maintain. But neither can the testing mock respond synchronously; that would\n * change the execution of the code under test. For this reason, the mock $httpBackend has a\n * `flush()` method, which allows the test to explicitly flush pending requests. This preserves\n * the async api of the backend, while allowing the test to execute synchronously.\n *\n *\n * # Unit testing with mock $httpBackend\n * The following code shows how to setup and use the mock backend when unit testing a controller.\n * First we create the controller under test:\n *\n  ```js\n  // The module code\n  angular\n    .module('MyApp', [])\n    .controller('MyController', MyController);\n\n  // The controller code\n  function MyController($scope, $http) {\n    var authToken;\n\n    $http.get('/auth.py').success(function(data, status, headers) {\n      authToken = headers('A-Token');\n      $scope.user = data;\n    });\n\n    $scope.saveMessage = function(message) {\n      var headers = { 'Authorization': authToken };\n      $scope.status = 'Saving...';\n\n      $http.post('/add-msg.py', message, { headers: headers } ).success(function(response) {\n        $scope.status = '';\n      }).error(function() {\n        $scope.status = 'Failed...';\n      });\n    };\n  }\n  ```\n *\n * Now we setup the mock backend and create the test specs:\n *\n  ```js\n    // testing controller\n    describe('MyController', function() {\n       var $httpBackend, $rootScope, createController, authRequestHandler;\n\n       // Set up the module\n       beforeEach(module('MyApp'));\n\n       beforeEach(inject(function($injector) {\n         // Set up the mock http service responses\n         $httpBackend = $injector.get('$httpBackend');\n         // backend definition common for all tests\n         authRequestHandler = $httpBackend.when('GET', '/auth.py')\n                                .respond({userId: 'userX'}, {'A-Token': 'xxx'});\n\n         // Get hold of a scope (i.e. the root scope)\n         $rootScope = $injector.get('$rootScope');\n         // The $controller service is used to create instances of controllers\n         var $controller = $injector.get('$controller');\n\n         createController = function() {\n           return $controller('MyController', {'$scope' : $rootScope });\n         };\n       }));\n\n\n       afterEach(function() {\n         $httpBackend.verifyNoOutstandingExpectation();\n         $httpBackend.verifyNoOutstandingRequest();\n       });\n\n\n       it('should fetch authentication token', function() {\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n       });\n\n\n       it('should fail authentication', function() {\n\n         // Notice how you can change the response even after it was set\n         authRequestHandler.respond(401, '');\n\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('Failed...');\n       });\n\n\n       it('should send msg to server', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         // now you don’t care about the authentication, but\n         // the controller will still send the request and\n         // $httpBackend will respond without you having to\n         // specify the expectation and response for this request\n\n         $httpBackend.expectPOST('/add-msg.py', 'message content').respond(201, '');\n         $rootScope.saveMessage('message content');\n         expect($rootScope.status).toBe('Saving...');\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('');\n       });\n\n\n       it('should send auth header', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         $httpBackend.expectPOST('/add-msg.py', undefined, function(headers) {\n           // check if the header was sent, if it wasn't the expectation won't\n           // match the request and the test will fail\n           return headers['Authorization'] == 'xxx';\n         }).respond(201, '');\n\n         $rootScope.saveMessage('whatever');\n         $httpBackend.flush();\n       });\n    });\n   ```\n */\nangular.mock.$HttpBackendProvider = function() {\n  this.$get = ['$rootScope', '$timeout', createHttpBackendMock];\n};\n\n/**\n * General factory function for $httpBackend mock.\n * Returns instance for unit testing (when no arguments specified):\n *   - passing through is disabled\n *   - auto flushing is disabled\n *\n * Returns instance for e2e testing (when `$delegate` and `$browser` specified):\n *   - passing through (delegating request to real backend) is enabled\n *   - auto flushing is enabled\n *\n * @param {Object=} $delegate Real $httpBackend instance (allow passing through if specified)\n * @param {Object=} $browser Auto-flushing enabled if specified\n * @return {Object} Instance of $httpBackend mock\n */\nfunction createHttpBackendMock($rootScope, $timeout, $delegate, $browser) {\n  var definitions = [],\n      expectations = [],\n      responses = [],\n      responsesPush = angular.bind(responses, responses.push),\n      copy = angular.copy;\n\n  function createResponse(status, data, headers, statusText) {\n    if (angular.isFunction(status)) return status;\n\n    return function() {\n      return angular.isNumber(status)\n          ? [status, data, headers, statusText]\n          : [200, status, data, headers];\n    };\n  }\n\n  // TODO(vojta): change params to: method, url, data, headers, callback\n  function $httpBackend(method, url, data, callback, headers, timeout, withCredentials, responseType) {\n\n    var xhr = new MockXhr(),\n        expectation = expectations[0],\n        wasExpected = false;\n\n    function prettyPrint(data) {\n      return (angular.isString(data) || angular.isFunction(data) || data instanceof RegExp)\n          ? data\n          : angular.toJson(data);\n    }\n\n    function wrapResponse(wrapped) {\n      if (!$browser && timeout) {\n        timeout.then ? timeout.then(handleTimeout) : $timeout(handleTimeout, timeout);\n      }\n\n      return handleResponse;\n\n      function handleResponse() {\n        var response = wrapped.response(method, url, data, headers);\n        xhr.$$respHeaders = response[2];\n        callback(copy(response[0]), copy(response[1]), xhr.getAllResponseHeaders(),\n                 copy(response[3] || ''));\n      }\n\n      function handleTimeout() {\n        for (var i = 0, ii = responses.length; i < ii; i++) {\n          if (responses[i] === handleResponse) {\n            responses.splice(i, 1);\n            callback(-1, undefined, '');\n            break;\n          }\n        }\n      }\n    }\n\n    if (expectation && expectation.match(method, url)) {\n      if (!expectation.matchData(data)) {\n        throw new Error('Expected ' + expectation + ' with different data\\n' +\n            'EXPECTED: ' + prettyPrint(expectation.data) + '\\nGOT:      ' + data);\n      }\n\n      if (!expectation.matchHeaders(headers)) {\n        throw new Error('Expected ' + expectation + ' with different headers\\n' +\n                        'EXPECTED: ' + prettyPrint(expectation.headers) + '\\nGOT:      ' +\n                        prettyPrint(headers));\n      }\n\n      expectations.shift();\n\n      if (expectation.response) {\n        responses.push(wrapResponse(expectation));\n        return;\n      }\n      wasExpected = true;\n    }\n\n    var i = -1, definition;\n    while ((definition = definitions[++i])) {\n      if (definition.match(method, url, data, headers || {})) {\n        if (definition.response) {\n          // if $browser specified, we do auto flush all requests\n          ($browser ? $browser.defer : responsesPush)(wrapResponse(definition));\n        } else if (definition.passThrough) {\n          $delegate(method, url, data, callback, headers, timeout, withCredentials, responseType);\n        } else throw new Error('No response defined !');\n        return;\n      }\n    }\n    throw wasExpected ?\n        new Error('No response defined !') :\n        new Error('Unexpected request: ' + method + ' ' + url + '\\n' +\n                  (expectation ? 'Expected ' + expectation : 'No more request expected'));\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#when\n   * @description\n   * Creates a new backend definition.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   *\n   *  - respond –\n   *      `{function([status,] data[, headers, statusText])\n   *      | function(function(method, url, data, headers)}`\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (string), response\n   *    headers (Object), and the text for the status (string). The respond method returns the\n   *    `requestHandler` object for possible overrides.\n   */\n  $httpBackend.when = function(method, url, data, headers) {\n    var definition = new MockHttpExpectation(method, url, data, headers),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            definition.passThrough = undefined;\n            definition.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    if ($browser) {\n      chain.passThrough = function() {\n        definition.response = undefined;\n        definition.passThrough = true;\n        return chain;\n      };\n    }\n\n    definitions.push(definition);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenGET\n   * @description\n   * Creates a new backend definition for GET requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenHEAD\n   * @description\n   * Creates a new backend definition for HEAD requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenDELETE\n   * @description\n   * Creates a new backend definition for DELETE requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPOST\n   * @description\n   * Creates a new backend definition for POST requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPUT\n   * @description\n   * Creates a new backend definition for PUT requests.  For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenJSONP\n   * @description\n   * Creates a new backend definition for JSONP requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n  createShortMethods('when');\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expect\n   * @description\n   * Creates a new request expectation.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *  request is handled. You can save this object for later use and invoke `respond` again in\n   *  order to change how a matched request is handled.\n   *\n   *  - respond –\n   *    `{function([status,] data[, headers, statusText])\n   *    | function(function(method, url, data, headers)}`\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (string), response\n   *    headers (Object), and the text for the status (string). The respond method returns the\n   *    `requestHandler` object for possible overrides.\n   */\n  $httpBackend.expect = function(method, url, data, headers) {\n    var expectation = new MockHttpExpectation(method, url, data, headers),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            expectation.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    expectations.push(expectation);\n    return chain;\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectGET\n   * @description\n   * Creates a new request expectation for GET requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #expect for more info.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectHEAD\n   * @description\n   * Creates a new request expectation for HEAD requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectDELETE\n   * @description\n   * Creates a new request expectation for DELETE requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPOST\n   * @description\n   * Creates a new request expectation for POST requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPUT\n   * @description\n   * Creates a new request expectation for PUT requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPATCH\n   * @description\n   * Creates a new request expectation for PATCH requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectJSONP\n   * @description\n   * Creates a new request expectation for JSONP requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives an url\n   *   and returns true if the url matches the current definition.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n  createShortMethods('expect');\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#flush\n   * @description\n   * Flushes all pending requests using the trained responses.\n   *\n   * @param {number=} count Number of responses to flush (in the order they arrived). If undefined,\n   *   all pending requests will be flushed. If there are no pending requests when the flush method\n   *   is called an exception is thrown (as this typically a sign of programming error).\n   */\n  $httpBackend.flush = function(count, digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (!responses.length) throw new Error('No pending request to flush !');\n\n    if (angular.isDefined(count) && count !== null) {\n      while (count--) {\n        if (!responses.length) throw new Error('No more pending request to flush !');\n        responses.shift()();\n      }\n    } else {\n      while (responses.length) {\n        responses.shift()();\n      }\n    }\n    $httpBackend.verifyNoOutstandingExpectation(digest);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingExpectation\n   * @description\n   * Verifies that all of the requests defined via the `expect` api were made. If any of the\n   * requests were not made, verifyNoOutstandingExpectation throws an exception.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingExpectation);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingExpectation = function(digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (expectations.length) {\n      throw new Error('Unsatisfied requests: ' + expectations.join(', '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingRequest\n   * @description\n   * Verifies that there are no outstanding requests that need to be flushed.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingRequest);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingRequest = function() {\n    if (responses.length) {\n      throw new Error('Unflushed requests: ' + responses.length);\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#resetExpectations\n   * @description\n   * Resets all request expectations, but preserves all backend definitions. Typically, you would\n   * call resetExpectations during a multiple-phase test when you want to reuse the same instance of\n   * $httpBackend mock.\n   */\n  $httpBackend.resetExpectations = function() {\n    expectations.length = 0;\n    responses.length = 0;\n  };\n\n  return $httpBackend;\n\n\n  function createShortMethods(prefix) {\n    angular.forEach(['GET', 'DELETE', 'JSONP', 'HEAD'], function(method) {\n     $httpBackend[prefix + method] = function(url, headers) {\n       return $httpBackend[prefix](method, url, undefined, headers);\n     };\n    });\n\n    angular.forEach(['PUT', 'POST', 'PATCH'], function(method) {\n      $httpBackend[prefix + method] = function(url, data, headers) {\n        return $httpBackend[prefix](method, url, data, headers);\n      };\n    });\n  }\n}\n\nfunction MockHttpExpectation(method, url, data, headers) {\n\n  this.data = data;\n  this.headers = headers;\n\n  this.match = function(m, u, d, h) {\n    if (method != m) return false;\n    if (!this.matchUrl(u)) return false;\n    if (angular.isDefined(d) && !this.matchData(d)) return false;\n    if (angular.isDefined(h) && !this.matchHeaders(h)) return false;\n    return true;\n  };\n\n  this.matchUrl = function(u) {\n    if (!url) return true;\n    if (angular.isFunction(url.test)) return url.test(u);\n    if (angular.isFunction(url)) return url(u);\n    return url == u;\n  };\n\n  this.matchHeaders = function(h) {\n    if (angular.isUndefined(headers)) return true;\n    if (angular.isFunction(headers)) return headers(h);\n    return angular.equals(headers, h);\n  };\n\n  this.matchData = function(d) {\n    if (angular.isUndefined(data)) return true;\n    if (data && angular.isFunction(data.test)) return data.test(d);\n    if (data && angular.isFunction(data)) return data(d);\n    if (data && !angular.isString(data)) {\n      return angular.equals(angular.fromJson(angular.toJson(data)), angular.fromJson(d));\n    }\n    return data == d;\n  };\n\n  this.toString = function() {\n    return method + ' ' + url;\n  };\n}\n\nfunction createMockXhr() {\n  return new MockXhr();\n}\n\nfunction MockXhr() {\n\n  // hack for testing $http, $httpBackend\n  MockXhr.$$lastInstance = this;\n\n  this.open = function(method, url, async) {\n    this.$$method = method;\n    this.$$url = url;\n    this.$$async = async;\n    this.$$reqHeaders = {};\n    this.$$respHeaders = {};\n  };\n\n  this.send = function(data) {\n    this.$$data = data;\n  };\n\n  this.setRequestHeader = function(key, value) {\n    this.$$reqHeaders[key] = value;\n  };\n\n  this.getResponseHeader = function(name) {\n    // the lookup must be case insensitive,\n    // that's why we try two quick lookups first and full scan last\n    var header = this.$$respHeaders[name];\n    if (header) return header;\n\n    name = angular.lowercase(name);\n    header = this.$$respHeaders[name];\n    if (header) return header;\n\n    header = undefined;\n    angular.forEach(this.$$respHeaders, function(headerVal, headerName) {\n      if (!header && angular.lowercase(headerName) == name) header = headerVal;\n    });\n    return header;\n  };\n\n  this.getAllResponseHeaders = function() {\n    var lines = [];\n\n    angular.forEach(this.$$respHeaders, function(value, key) {\n      lines.push(key + ': ' + value);\n    });\n    return lines.join('\\n');\n  };\n\n  this.abort = angular.noop;\n}\n\n\n/**\n * @ngdoc service\n * @name $timeout\n * @description\n *\n * This service is just a simple decorator for {@link ng.$timeout $timeout} service\n * that adds a \"flush\" and \"verifyNoPendingTasks\" methods.\n */\n\nangular.mock.$TimeoutDecorator = ['$delegate', '$browser', function($delegate, $browser) {\n\n  /**\n   * @ngdoc method\n   * @name $timeout#flush\n   * @description\n   *\n   * Flushes the queue of pending tasks.\n   *\n   * @param {number=} delay maximum timeout amount to flush up until\n   */\n  $delegate.flush = function(delay) {\n    $browser.defer.flush(delay);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $timeout#verifyNoPendingTasks\n   * @description\n   *\n   * Verifies that there are no pending tasks that need to be flushed.\n   */\n  $delegate.verifyNoPendingTasks = function() {\n    if ($browser.deferredFns.length) {\n      throw new Error('Deferred tasks to flush (' + $browser.deferredFns.length + '): ' +\n          formatPendingTasksAsString($browser.deferredFns));\n    }\n  };\n\n  function formatPendingTasksAsString(tasks) {\n    var result = [];\n    angular.forEach(tasks, function(task) {\n      result.push('{id: ' + task.id + ', ' + 'time: ' + task.time + '}');\n    });\n\n    return result.join(', ');\n  }\n\n  return $delegate;\n}];\n\nangular.mock.$RAFDecorator = ['$delegate', function($delegate) {\n  var rafFn = function(fn) {\n    var index = rafFn.queue.length;\n    rafFn.queue.push(fn);\n    return function() {\n      rafFn.queue.splice(index, 1);\n    };\n  };\n\n  rafFn.queue = [];\n  rafFn.supported = $delegate.supported;\n\n  rafFn.flush = function() {\n    if (rafFn.queue.length === 0) {\n      throw new Error('No rAF callbacks present');\n    }\n\n    var length = rafFn.queue.length;\n    for (var i = 0; i < length; i++) {\n      rafFn.queue[i]();\n    }\n\n    rafFn.queue = rafFn.queue.slice(i);\n  };\n\n  return rafFn;\n}];\n\n/**\n *\n */\nangular.mock.$RootElementProvider = function() {\n  this.$get = function() {\n    return angular.element('<div ng-app></div>');\n  };\n};\n\n/**\n * @ngdoc service\n * @name $controller\n * @description\n * A decorator for {@link ng.$controller} with additional `bindings` parameter, useful when testing\n * controllers of directives that use {@link $compile#-bindtocontroller- `bindToController`}.\n *\n *\n * ## Example\n *\n * ```js\n *\n * // Directive definition ...\n *\n * myMod.directive('myDirective', {\n *   controller: 'MyDirectiveController',\n *   bindToController: {\n *     name: '@'\n *   }\n * });\n *\n *\n * // Controller definition ...\n *\n * myMod.controller('MyDirectiveController', ['$log', function($log) {\n *   $log.info(this.name);\n * }]);\n *\n *\n * // In a test ...\n *\n * describe('myDirectiveController', function() {\n *   it('should write the bound name to the log', inject(function($controller, $log) {\n *     var ctrl = $controller('MyDirectiveController', { /* no locals &#42;/ }, { name: 'Clark Kent' });\n *     expect(ctrl.name).toEqual('Clark Kent');\n *     expect($log.info.logs).toEqual(['Clark Kent']);\n *   }));\n * });\n *\n * ```\n *\n * @param {Function|string} constructor If called with a function then it's considered to be the\n *    controller constructor function. Otherwise it's considered to be a string which is used\n *    to retrieve the controller constructor using the following steps:\n *\n *    * check if a controller with given name is registered via `$controllerProvider`\n *    * check if evaluating the string on the current scope returns a constructor\n *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n *      `window` object (not recommended)\n *\n *    The string can use the `controller as property` syntax, where the controller instance is published\n *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n *    to work correctly.\n *\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller before invoking the constructor. This is used\n *                           to simulate the `bindToController` feature and simplify certain kinds of tests.\n * @return {Object} Instance of given controller.\n */\nangular.mock.$ControllerDecorator = ['$delegate', function($delegate) {\n  return function(expression, locals, later, ident) {\n    if (later && typeof later === 'object') {\n      var create = $delegate(expression, locals, true, ident);\n      angular.extend(create.instance, later);\n      return create();\n    }\n    return $delegate(expression, locals, later, ident);\n  };\n}];\n\n\n/**\n * @ngdoc module\n * @name ngMock\n * @packageName angular-mocks\n * @description\n *\n * # ngMock\n *\n * The `ngMock` module provides support to inject and mock Angular services into unit tests.\n * In addition, ngMock also extends various core ng services such that they can be\n * inspected and controlled in a synchronous manner within test code.\n *\n *\n * <div doc-module-components=\"ngMock\"></div>\n *\n */\nangular.module('ngMock', ['ng']).provider({\n  $browser: angular.mock.$BrowserProvider,\n  $exceptionHandler: angular.mock.$ExceptionHandlerProvider,\n  $log: angular.mock.$LogProvider,\n  $interval: angular.mock.$IntervalProvider,\n  $httpBackend: angular.mock.$HttpBackendProvider,\n  $rootElement: angular.mock.$RootElementProvider\n}).config(['$provide', function($provide) {\n  $provide.decorator('$timeout', angular.mock.$TimeoutDecorator);\n  $provide.decorator('$$rAF', angular.mock.$RAFDecorator);\n  $provide.decorator('$rootScope', angular.mock.$RootScopeDecorator);\n  $provide.decorator('$controller', angular.mock.$ControllerDecorator);\n}]);\n\n/**\n * @ngdoc module\n * @name ngMockE2E\n * @module ngMockE2E\n * @packageName angular-mocks\n * @description\n *\n * The `ngMockE2E` is an angular module which contains mocks suitable for end-to-end testing.\n * Currently there is only one mock present in this module -\n * the {@link ngMockE2E.$httpBackend e2e $httpBackend} mock.\n */\nangular.module('ngMockE2E', ['ng']).config(['$provide', function($provide) {\n  $provide.decorator('$httpBackend', angular.mock.e2e.$httpBackendDecorator);\n}]);\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @module ngMockE2E\n * @description\n * Fake HTTP backend implementation suitable for end-to-end testing or backend-less development of\n * applications that use the {@link ng.$http $http service}.\n *\n * *Note*: For fake http backend implementation suitable for unit testing please see\n * {@link ngMock.$httpBackend unit-testing $httpBackend mock}.\n *\n * This implementation can be used to respond with static or dynamic responses via the `when` api\n * and its shortcuts (`whenGET`, `whenPOST`, etc) and optionally pass through requests to the\n * real $httpBackend for specific requests (e.g. to interact with certain remote apis or to fetch\n * templates from a webserver).\n *\n * As opposed to unit-testing, in an end-to-end testing scenario or in scenario when an application\n * is being developed with the real backend api replaced with a mock, it is often desirable for\n * certain category of requests to bypass the mock and issue a real http request (e.g. to fetch\n * templates or static files from the webserver). To configure the backend with this behavior\n * use the `passThrough` request handler of `when` instead of `respond`.\n *\n * Additionally, we don't want to manually have to flush mocked out requests like we do during unit\n * testing. For this reason the e2e $httpBackend flushes mocked out requests\n * automatically, closely simulating the behavior of the XMLHttpRequest object.\n *\n * To setup the application to run with this http backend, you have to create a module that depends\n * on the `ngMockE2E` and your application modules and defines the fake backend:\n *\n * ```js\n *   myAppDev = angular.module('myAppDev', ['myApp', 'ngMockE2E']);\n *   myAppDev.run(function($httpBackend) {\n *     phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *     $httpBackend.whenGET(/^\\/templates\\//).passThrough();\n *     //...\n *   });\n * ```\n *\n * Afterwards, bootstrap your app with this new module.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#when\n * @module ngMockE2E\n * @description\n * Creates a new backend definition.\n *\n * @param {string} method HTTP method.\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n *   object and returns true if the headers match the current definition.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n *\n *  - respond –\n *    `{function([status,] data[, headers, statusText])\n *    | function(function(method, url, data, headers)}`\n *    – The respond method takes a set of static data to be returned or a function that can return\n *    an array containing response status (number), response data (string), response headers\n *    (Object), and the text for the status (string).\n *  - passThrough – `{function()}` – Any request matching a backend definition with\n *    `passThrough` handler will be passed through to the real backend (an XHR request will be made\n *    to the server.)\n *  - Both methods return the `requestHandler` object for possible overrides.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenGET\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for GET requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenHEAD\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for HEAD requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenDELETE\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for DELETE requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPOST\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for POST requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPUT\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PUT requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPATCH\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PATCH requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp)=} data HTTP request body.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenJSONP\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for JSONP requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\nangular.mock.e2e = {};\nangular.mock.e2e.$httpBackendDecorator =\n  ['$rootScope', '$timeout', '$delegate', '$browser', createHttpBackendMock];\n\n\n/**\n * @ngdoc type\n * @name $rootScope.Scope\n * @module ngMock\n * @description\n * {@link ng.$rootScope.Scope Scope} type decorated with helper methods useful for testing. These\n * methods are automatically available on any {@link ng.$rootScope.Scope Scope} instance when\n * `ngMock` module is loaded.\n *\n * In addition to all the regular `Scope` methods, the following helper methods are available:\n */\nangular.mock.$RootScopeDecorator = ['$delegate', function($delegate) {\n\n  var $rootScopePrototype = Object.getPrototypeOf($delegate);\n\n  $rootScopePrototype.$countChildScopes = countChildScopes;\n  $rootScopePrototype.$countWatchers = countWatchers;\n\n  return $delegate;\n\n  // ------------------------------------------------------------------------------------------ //\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countChildScopes\n   * @module ngMock\n   * @description\n   * Counts all the direct and indirect child scopes of the current scope.\n   *\n   * The current scope is excluded from the count. The count includes all isolate child scopes.\n   *\n   * @returns {number} Total number of child scopes.\n   */\n  function countChildScopes() {\n    // jshint validthis: true\n    var count = 0; // exclude the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += 1;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countWatchers\n   * @module ngMock\n   * @description\n   * Counts all the watchers of direct and indirect child scopes of the current scope.\n   *\n   * The watchers of the current scope are included in the count and so are all the watchers of\n   * isolate child scopes.\n   *\n   * @returns {number} Total number of watchers.\n   */\n  function countWatchers() {\n    // jshint validthis: true\n    var count = this.$$watchers ? this.$$watchers.length : 0; // include the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += currentScope.$$watchers ? currentScope.$$watchers.length : 0;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n}];\n\n\nif (window.jasmine || window.mocha) {\n\n  var currentSpec = null,\n      annotatedFunctions = [],\n      isSpecRunning = function() {\n        return !!currentSpec;\n      };\n\n  angular.mock.$$annotate = angular.injector.$$annotate;\n  angular.injector.$$annotate = function(fn) {\n    if (typeof fn === 'function' && !fn.$inject) {\n      annotatedFunctions.push(fn);\n    }\n    return angular.mock.$$annotate.apply(this, arguments);\n  };\n\n\n  (window.beforeEach || window.setup)(function() {\n    annotatedFunctions = [];\n    currentSpec = this;\n  });\n\n  (window.afterEach || window.teardown)(function() {\n    var injector = currentSpec.$injector;\n\n    annotatedFunctions.forEach(function(fn) {\n      delete fn.$inject;\n    });\n\n    angular.forEach(currentSpec.$modules, function(module) {\n      if (module && module.$$hashKey) {\n        module.$$hashKey = undefined;\n      }\n    });\n\n    currentSpec.$injector = null;\n    currentSpec.$modules = null;\n    currentSpec = null;\n\n    if (injector) {\n      injector.get('$rootElement').off();\n    }\n\n    // clean up jquery's fragment cache\n    angular.forEach(angular.element.fragments, function(val, key) {\n      delete angular.element.fragments[key];\n    });\n\n    MockXhr.$$lastInstance = null;\n\n    angular.forEach(angular.callbacks, function(val, key) {\n      delete angular.callbacks[key];\n    });\n    angular.callbacks.counter = 0;\n  });\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function registers a module configuration code. It collects the configuration information\n   * which will be used when the injector is created by {@link angular.mock.inject inject}.\n   *\n   * See {@link angular.mock.inject inject} for usage example\n   *\n   * @param {...(string|Function|Object)} fns any number of modules which are represented as string\n   *        aliases or as anonymous module initialization functions. The modules are used to\n   *        configure the injector. The 'ng' and 'ngMock' modules are automatically loaded. If an\n   *        object literal is passed each key-value pair will be registered on the module via\n   *        {@link auto.$provide $provide}.value, the key being the string name (or token) to associate\n   *        with the value on the injector.\n   */\n  window.module = angular.mock.module = function() {\n    var moduleFns = Array.prototype.slice.call(arguments, 0);\n    return isSpecRunning() ? workFn() : workFn;\n    /////////////////////\n    function workFn() {\n      if (currentSpec.$injector) {\n        throw new Error('Injector already created, can not register a module!');\n      } else {\n        var modules = currentSpec.$modules || (currentSpec.$modules = []);\n        angular.forEach(moduleFns, function(module) {\n          if (angular.isObject(module) && !angular.isArray(module)) {\n            modules.push(function($provide) {\n              angular.forEach(module, function(value, key) {\n                $provide.value(key, value);\n              });\n            });\n          } else {\n            modules.push(module);\n          }\n        });\n      }\n    }\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.inject\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * The inject function wraps a function into an injectable function. The inject() creates new\n   * instance of {@link auto.$injector $injector} per test, which is then used for\n   * resolving references.\n   *\n   *\n   * ## Resolving References (Underscore Wrapping)\n   * Often, we would like to inject a reference once, in a `beforeEach()` block and reuse this\n   * in multiple `it()` clauses. To be able to do this we must assign the reference to a variable\n   * that is declared in the scope of the `describe()` block. Since we would, most likely, want\n   * the variable to have the same name of the reference we have a problem, since the parameter\n   * to the `inject()` function would hide the outer variable.\n   *\n   * To help with this, the injected parameters can, optionally, be enclosed with underscores.\n   * These are ignored by the injector when the reference name is resolved.\n   *\n   * For example, the parameter `_myService_` would be resolved as the reference `myService`.\n   * Since it is available in the function body as _myService_, we can then assign it to a variable\n   * defined in an outer scope.\n   *\n   * ```\n   * // Defined out reference variable outside\n   * var myService;\n   *\n   * // Wrap the parameter in underscores\n   * beforeEach( inject( function(_myService_){\n   *   myService = _myService_;\n   * }));\n   *\n   * // Use myService in a series of tests.\n   * it('makes use of myService', function() {\n   *   myService.doStuff();\n   * });\n   *\n   * ```\n   *\n   * See also {@link angular.mock.module angular.mock.module}\n   *\n   * ## Example\n   * Example of what a typical jasmine tests looks like with the inject method.\n   * ```js\n   *\n   *   angular.module('myApplicationModule', [])\n   *       .value('mode', 'app')\n   *       .value('version', 'v1.0.1');\n   *\n   *\n   *   describe('MyApp', function() {\n   *\n   *     // You need to load modules that you want to test,\n   *     // it loads only the \"ng\" module by default.\n   *     beforeEach(module('myApplicationModule'));\n   *\n   *\n   *     // inject() is used to inject arguments of all given functions\n   *     it('should provide a version', inject(function(mode, version) {\n   *       expect(version).toEqual('v1.0.1');\n   *       expect(mode).toEqual('app');\n   *     }));\n   *\n   *\n   *     // The inject and module method can also be used inside of the it or beforeEach\n   *     it('should override a version and test the new version is injected', function() {\n   *       // module() takes functions or strings (module aliases)\n   *       module(function($provide) {\n   *         $provide.value('version', 'overridden'); // override version here\n   *       });\n   *\n   *       inject(function(version) {\n   *         expect(version).toEqual('overridden');\n   *       });\n   *     });\n   *   });\n   *\n   * ```\n   *\n   * @param {...Function} fns any number of functions which will be injected using the injector.\n   */\n\n\n\n  var ErrorAddingDeclarationLocationStack = function(e, errorForStack) {\n    this.message = e.message;\n    this.name = e.name;\n    if (e.line) this.line = e.line;\n    if (e.sourceId) this.sourceId = e.sourceId;\n    if (e.stack && errorForStack)\n      this.stack = e.stack + '\\n' + errorForStack.stack;\n    if (e.stackArray) this.stackArray = e.stackArray;\n  };\n  ErrorAddingDeclarationLocationStack.prototype.toString = Error.prototype.toString;\n\n  window.inject = angular.mock.inject = function() {\n    var blockFns = Array.prototype.slice.call(arguments, 0);\n    var errorForStack = new Error('Declaration Location');\n    // IE10+ and PhanthomJS do not set stack trace information, until the error is thrown\n    if (!errorForStack.stack) {\n      try {\n        throw errorForStack;\n      } catch (e) {}\n    }\n    return isSpecRunning() ? workFn.call(currentSpec) : workFn;\n    /////////////////////\n    function workFn() {\n      var modules = currentSpec.$modules || [];\n      var strictDi = !!currentSpec.$injectorStrict;\n      modules.unshift('ngMock');\n      modules.unshift('ng');\n      var injector = currentSpec.$injector;\n      if (!injector) {\n        if (strictDi) {\n          // If strictDi is enabled, annotate the providerInjector blocks\n          angular.forEach(modules, function(moduleFn) {\n            if (typeof moduleFn === \"function\") {\n              angular.injector.$$annotate(moduleFn);\n            }\n          });\n        }\n        injector = currentSpec.$injector = angular.injector(modules, strictDi);\n        currentSpec.$injectorStrict = strictDi;\n      }\n      for (var i = 0, ii = blockFns.length; i < ii; i++) {\n        if (currentSpec.$injectorStrict) {\n          // If the injector is strict / strictDi, and the spec wants to inject using automatic\n          // annotation, then annotate the function here.\n          injector.annotate(blockFns[i]);\n        }\n        try {\n          /* jshint -W040 *//* Jasmine explicitly provides a `this` object when calling functions */\n          injector.invoke(blockFns[i] || angular.noop, this);\n          /* jshint +W040 */\n        } catch (e) {\n          if (e.stack && errorForStack) {\n            throw new ErrorAddingDeclarationLocationStack(e, errorForStack);\n          }\n          throw e;\n        } finally {\n          errorForStack = null;\n        }\n      }\n    }\n  };\n\n\n  angular.mock.inject.strictDi = function(value) {\n    value = arguments.length ? !!value : true;\n    return isSpecRunning() ? workFn() : workFn;\n\n    function workFn() {\n      if (value !== currentSpec.$injectorStrict) {\n        if (currentSpec.$injector) {\n          throw new Error('Injector already created, can not modify strict annotations');\n        } else {\n          currentSpec.$injectorStrict = value;\n        }\n      }\n    }\n  };\n}\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.4/angular.js",
    "content": "/**\n * @license AngularJS v1.4.14\n * (c) 2010-2015 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, document, undefined) {'use strict';\n\n/**\n * @description\n *\n * This object provides a utility for producing rich Error messages within\n * Angular. It can be called as follows:\n *\n * var exampleMinErr = minErr('example');\n * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);\n *\n * The above creates an instance of minErr in the example namespace. The\n * resulting error will have a namespaced error code of example.one.  The\n * resulting error will replace {0} with the value of foo, and {1} with the\n * value of bar. The object is not restricted in the number of arguments it can\n * take.\n *\n * If fewer arguments are specified than necessary for interpolation, the extra\n * interpolation markers will be preserved in the final string.\n *\n * Since data will be parsed statically during a build step, some restrictions\n * are applied with respect to how minErr instances are created and called.\n * Instances should have names of the form namespaceMinErr for a minErr created\n * using minErr('namespace') . Error codes, namespaces and template strings\n * should all be static strings, not variables or general expressions.\n *\n * @param {string} module The namespace to use for the new minErr instance.\n * @param {function} ErrorConstructor Custom error constructor to be instantiated when returning\n *   error from returned function, for cases when a particular type of error is useful.\n * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance\n */\n\nfunction minErr(module, ErrorConstructor) {\n  ErrorConstructor = ErrorConstructor || Error;\n  return function() {\n    var SKIP_INDEXES = 2;\n\n    var templateArgs = arguments,\n      code = templateArgs[0],\n      message = '[' + (module ? module + ':' : '') + code + '] ',\n      template = templateArgs[1],\n      paramPrefix, i;\n\n    message += template.replace(/\\{\\d+\\}/g, function(match) {\n      var index = +match.slice(1, -1),\n        shiftedIndex = index + SKIP_INDEXES;\n\n      if (shiftedIndex < templateArgs.length) {\n        return toDebugString(templateArgs[shiftedIndex]);\n      }\n\n      return match;\n    });\n\n    message += '\\nhttp://errors.angularjs.org/1.4.14/' +\n      (module ? module + '/' : '') + code;\n\n    for (i = SKIP_INDEXES, paramPrefix = '?'; i < templateArgs.length; i++, paramPrefix = '&') {\n      message += paramPrefix + 'p' + (i - SKIP_INDEXES) + '=' +\n        encodeURIComponent(toDebugString(templateArgs[i]));\n    }\n\n    return new ErrorConstructor(message);\n  };\n}\n\n/* We need to tell jshint what variables are being exported */\n/* global angular: true,\n  msie: true,\n  jqLite: true,\n  jQuery: true,\n  slice: true,\n  splice: true,\n  push: true,\n  toString: true,\n  ngMinErr: true,\n  angularModule: true,\n  uid: true,\n  REGEX_STRING_REGEXP: true,\n  VALIDITY_STATE_PROPERTY: true,\n\n  lowercase: true,\n  uppercase: true,\n  manualLowercase: true,\n  manualUppercase: true,\n  nodeName_: true,\n  isArrayLike: true,\n  forEach: true,\n  forEachSorted: true,\n  reverseParams: true,\n  nextUid: true,\n  setHashKey: true,\n  extend: true,\n  toInt: true,\n  inherit: true,\n  merge: true,\n  noop: true,\n  identity: true,\n  valueFn: true,\n  isUndefined: true,\n  isDefined: true,\n  isObject: true,\n  isBlankObject: true,\n  isString: true,\n  isNumber: true,\n  isDate: true,\n  isArray: true,\n  isFunction: true,\n  isRegExp: true,\n  isWindow: true,\n  isScope: true,\n  isFile: true,\n  isFormData: true,\n  isBlob: true,\n  isBoolean: true,\n  isPromiseLike: true,\n  trim: true,\n  escapeForRegexp: true,\n  isElement: true,\n  makeMap: true,\n  includes: true,\n  arrayRemove: true,\n  copy: true,\n  shallowCopy: true,\n  equals: true,\n  csp: true,\n  jq: true,\n  concat: true,\n  sliceArgs: true,\n  bind: true,\n  toJsonReplacer: true,\n  toJson: true,\n  fromJson: true,\n  convertTimezoneToLocal: true,\n  timezoneToOffset: true,\n  startingTag: true,\n  tryDecodeURIComponent: true,\n  parseKeyValue: true,\n  toKeyValue: true,\n  encodeUriSegment: true,\n  encodeUriQuery: true,\n  angularInit: true,\n  bootstrap: true,\n  getTestability: true,\n  snake_case: true,\n  bindJQuery: true,\n  assertArg: true,\n  assertArgFn: true,\n  assertNotHasOwnProperty: true,\n  getter: true,\n  getBlockNodes: true,\n  hasOwnProperty: true,\n  createMap: true,\n\n  NODE_TYPE_ELEMENT: true,\n  NODE_TYPE_ATTRIBUTE: true,\n  NODE_TYPE_TEXT: true,\n  NODE_TYPE_COMMENT: true,\n  NODE_TYPE_DOCUMENT: true,\n  NODE_TYPE_DOCUMENT_FRAGMENT: true,\n*/\n\n////////////////////////////////////\n\n/**\n * @ngdoc module\n * @name ng\n * @module ng\n * @description\n *\n * # ng (core module)\n * The ng module is loaded by default when an AngularJS application is started. The module itself\n * contains the essential components for an AngularJS application to function. The table below\n * lists a high level breakdown of each of the services/factories, filters, directives and testing\n * components available within this core module.\n *\n * <div doc-module-components=\"ng\"></div>\n */\n\nvar REGEX_STRING_REGEXP = /^\\/(.+)\\/([a-z]*)$/;\n\n// The name of a form control's ValidityState property.\n// This is used so that it's possible for internal tests to create mock ValidityStates.\nvar VALIDITY_STATE_PROPERTY = 'validity';\n\n/**\n * @ngdoc function\n * @name angular.lowercase\n * @module ng\n * @kind function\n *\n * @description Converts the specified string to lowercase.\n * @param {string} string String to be converted to lowercase.\n * @returns {string} Lowercased string.\n */\nvar lowercase = function(string) {return isString(string) ? string.toLowerCase() : string;};\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\n/**\n * @ngdoc function\n * @name angular.uppercase\n * @module ng\n * @kind function\n *\n * @description Converts the specified string to uppercase.\n * @param {string} string String to be converted to uppercase.\n * @returns {string} Uppercased string.\n */\nvar uppercase = function(string) {return isString(string) ? string.toUpperCase() : string;};\n\n\nvar manualLowercase = function(s) {\n  /* jshint bitwise: false */\n  return isString(s)\n      ? s.replace(/[A-Z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) | 32);})\n      : s;\n};\nvar manualUppercase = function(s) {\n  /* jshint bitwise: false */\n  return isString(s)\n      ? s.replace(/[a-z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) & ~32);})\n      : s;\n};\n\n\n// String#toLowerCase and String#toUpperCase don't produce correct results in browsers with Turkish\n// locale, for this reason we need to detect this case and redefine lowercase/uppercase methods\n// with correct but slower alternatives.\nif ('i' !== 'I'.toLowerCase()) {\n  lowercase = manualLowercase;\n  uppercase = manualUppercase;\n}\n\n\nvar\n    msie,             // holds major version number for IE, or NaN if UA is not IE.\n    jqLite,           // delay binding since jQuery could be loaded after us.\n    jQuery,           // delay binding\n    slice             = [].slice,\n    splice            = [].splice,\n    push              = [].push,\n    toString          = Object.prototype.toString,\n    getPrototypeOf    = Object.getPrototypeOf,\n    ngMinErr          = minErr('ng'),\n\n    /** @name angular */\n    angular           = window.angular || (window.angular = {}),\n    angularModule,\n    uid               = 0;\n\n/**\n * documentMode is an IE-only property\n * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx\n */\nmsie = document.documentMode;\n\n\n/**\n * @private\n * @param {*} obj\n * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,\n *                   String ...)\n */\nfunction isArrayLike(obj) {\n\n  // `null`, `undefined` and `window` are not array-like\n  if (obj == null || isWindow(obj)) return false;\n\n  // arrays, strings and jQuery/jqLite objects are array like\n  // * jqLite is either the jQuery or jqLite constructor function\n  // * we have to check the existance of jqLite first as this method is called\n  //   via the forEach method when constructing the jqLite object in the first place\n  if (isArray(obj) || isString(obj) || (jqLite && obj instanceof jqLite)) return true;\n\n  // Support: iOS 8.2 (not reproducible in simulator)\n  // \"length\" in obj used to prevent JIT error (gh-11508)\n  var length = \"length\" in Object(obj) && obj.length;\n\n  // NodeList objects (with `item` method) and\n  // other objects with suitable length characteristics are array-like\n  return isNumber(length) &&\n    (length >= 0 && ((length - 1) in obj || obj instanceof Array) || typeof obj.item == 'function');\n\n}\n\n/**\n * @ngdoc function\n * @name angular.forEach\n * @module ng\n * @kind function\n *\n * @description\n * Invokes the `iterator` function once for each item in `obj` collection, which can be either an\n * object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value`\n * is the value of an object property or an array element, `key` is the object property key or\n * array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.\n *\n * It is worth noting that `.forEach` does not iterate over inherited properties because it filters\n * using the `hasOwnProperty` method.\n *\n * Unlike ES262's\n * [Array.prototype.forEach](http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.18),\n * providing 'undefined' or 'null' values for `obj` will not throw a TypeError, but rather just\n * return the value provided.\n *\n   ```js\n     var values = {name: 'misko', gender: 'male'};\n     var log = [];\n     angular.forEach(values, function(value, key) {\n       this.push(key + ': ' + value);\n     }, log);\n     expect(log).toEqual(['name: misko', 'gender: male']);\n   ```\n *\n * @param {Object|Array} obj Object to iterate over.\n * @param {Function} iterator Iterator function.\n * @param {Object=} context Object to become context (`this`) for the iterator function.\n * @returns {Object|Array} Reference to `obj`.\n */\n\nfunction forEach(obj, iterator, context) {\n  var key, length;\n  if (obj) {\n    if (isFunction(obj)) {\n      for (key in obj) {\n        // Need to check if hasOwnProperty exists,\n        // as on IE8 the result of querySelectorAll is an object without a hasOwnProperty function\n        if (key != 'prototype' && key != 'length' && key != 'name' && (!obj.hasOwnProperty || obj.hasOwnProperty(key))) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (isArray(obj) || isArrayLike(obj)) {\n      var isPrimitive = typeof obj !== 'object';\n      for (key = 0, length = obj.length; key < length; key++) {\n        if (isPrimitive || key in obj) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (obj.forEach && obj.forEach !== forEach) {\n        obj.forEach(iterator, context, obj);\n    } else if (isBlankObject(obj)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in obj) {\n        iterator.call(context, obj[key], key, obj);\n      }\n    } else if (typeof obj.hasOwnProperty === 'function') {\n      // Slow path for objects inheriting Object.prototype, hasOwnProperty check needed\n      for (key in obj) {\n        if (obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else {\n      // Slow path for objects which do not have a method `hasOwnProperty`\n      for (key in obj) {\n        if (hasOwnProperty.call(obj, key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    }\n  }\n  return obj;\n}\n\nfunction forEachSorted(obj, iterator, context) {\n  var keys = Object.keys(obj).sort();\n  for (var i = 0; i < keys.length; i++) {\n    iterator.call(context, obj[keys[i]], keys[i]);\n  }\n  return keys;\n}\n\n\n/**\n * when using forEach the params are value, key, but it is often useful to have key, value.\n * @param {function(string, *)} iteratorFn\n * @returns {function(*, string)}\n */\nfunction reverseParams(iteratorFn) {\n  return function(value, key) {iteratorFn(key, value);};\n}\n\n/**\n * A consistent way of creating unique IDs in angular.\n *\n * Using simple numbers allows us to generate 28.6 million unique ids per second for 10 years before\n * we hit number precision issues in JavaScript.\n *\n * Math.pow(2,53) / 60 / 60 / 24 / 365 / 10 = 28.6M\n *\n * @returns {number} an unique alpha-numeric string\n */\nfunction nextUid() {\n  return ++uid;\n}\n\n\n/**\n * Set or clear the hashkey for an object.\n * @param obj object\n * @param h the hashkey (!truthy to delete the hashkey)\n */\nfunction setHashKey(obj, h) {\n  if (h) {\n    obj.$$hashKey = h;\n  } else {\n    delete obj.$$hashKey;\n  }\n}\n\n\nfunction baseExtend(dst, objs, deep) {\n  var h = dst.$$hashKey;\n\n  for (var i = 0, ii = objs.length; i < ii; ++i) {\n    var obj = objs[i];\n    if (!isObject(obj) && !isFunction(obj)) continue;\n    var keys = Object.keys(obj);\n    for (var j = 0, jj = keys.length; j < jj; j++) {\n      var key = keys[j];\n      var src = obj[key];\n\n      if (deep && isObject(src)) {\n        if (isDate(src)) {\n          dst[key] = new Date(src.valueOf());\n        } else if (isRegExp(src)) {\n          dst[key] = new RegExp(src);\n        } else if (src.nodeName) {\n          dst[key] = src.cloneNode(true);\n        } else if (isElement(src)) {\n          dst[key] = src.clone();\n        } else {\n          if (!isObject(dst[key])) dst[key] = isArray(src) ? [] : {};\n          baseExtend(dst[key], [src], true);\n        }\n      } else {\n        dst[key] = src;\n      }\n    }\n  }\n\n  setHashKey(dst, h);\n  return dst;\n}\n\n/**\n * @ngdoc function\n * @name angular.extend\n * @module ng\n * @kind function\n *\n * @description\n * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n * to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n * by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.\n *\n * **Note:** Keep in mind that `angular.extend` does not support recursive merge (deep copy). Use\n * {@link angular.merge} for this.\n *\n * @param {Object} dst Destination object.\n * @param {...Object} src Source object(s).\n * @returns {Object} Reference to `dst`.\n */\nfunction extend(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), false);\n}\n\n\n/**\n* @ngdoc function\n* @name angular.merge\n* @module ng\n* @kind function\n*\n* @description\n* Deeply extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n* to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n* by passing an empty object as the target: `var object = angular.merge({}, object1, object2)`.\n*\n* Unlike {@link angular.extend extend()}, `merge()` recursively descends into object properties of source\n* objects, performing a deep copy.\n*\n* @param {Object} dst Destination object.\n* @param {...Object} src Source object(s).\n* @returns {Object} Reference to `dst`.\n*/\nfunction merge(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), true);\n}\n\n\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\n\nfunction inherit(parent, extra) {\n  return extend(Object.create(parent), extra);\n}\n\n/**\n * @ngdoc function\n * @name angular.noop\n * @module ng\n * @kind function\n *\n * @description\n * A function that performs no operations. This function can be useful when writing code in the\n * functional style.\n   ```js\n     function foo(callback) {\n       var result = calculateResult();\n       (callback || angular.noop)(result);\n     }\n   ```\n */\nfunction noop() {}\nnoop.$inject = [];\n\n\n/**\n * @ngdoc function\n * @name angular.identity\n * @module ng\n * @kind function\n *\n * @description\n * A function that returns its first argument. This function is useful when writing code in the\n * functional style.\n *\n   ```js\n   function transformer(transformationFn, value) {\n     return (transformationFn || angular.identity)(value);\n   };\n\n   // E.g.\n   function getResult(fn, input) {\n     return (fn || angular.identity)(input);\n   };\n\n   getResult(function(n) { return n * 2; }, 21);   // returns 42\n   getResult(null, 21);                            // returns 21\n   getResult(undefined, 21);                       // returns 21\n   ```\n *\n * @param {*} value to be returned.\n * @returns {*} the value passed in.\n */\nfunction identity($) {return $;}\nidentity.$inject = [];\n\n\nfunction valueFn(value) {return function() {return value;};}\n\nfunction hasCustomToString(obj) {\n  return isFunction(obj.toString) && obj.toString !== toString;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isUndefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is undefined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is undefined.\n */\nfunction isUndefined(value) {return typeof value === 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is defined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is defined.\n */\nfunction isDefined(value) {return typeof value !== 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isObject\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not\n * considered to be objects. Note that JavaScript arrays are objects.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Object` but not `null`.\n */\nfunction isObject(value) {\n  // http://jsperf.com/isobject4\n  return value !== null && typeof value === 'object';\n}\n\n\n/**\n * Determine if a value is an object with a null prototype\n *\n * @returns {boolean} True if `value` is an `Object` with a null prototype\n */\nfunction isBlankObject(value) {\n  return value !== null && typeof value === 'object' && !getPrototypeOf(value);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isString\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `String`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `String`.\n */\nfunction isString(value) {return typeof value === 'string';}\n\n\n/**\n * @ngdoc function\n * @name angular.isNumber\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Number`.\n *\n * This includes the \"special\" numbers `NaN`, `+Infinity` and `-Infinity`.\n *\n * If you wish to exclude these then you can use the native\n * [`isFinite'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)\n * method.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Number`.\n */\nfunction isNumber(value) {return typeof value === 'number';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDate\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a value is a date.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Date`.\n */\nfunction isDate(value) {\n  return toString.call(value) === '[object Date]';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isArray\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Array`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Array`.\n */\nvar isArray = Array.isArray;\n\n/**\n * @ngdoc function\n * @name angular.isFunction\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Function`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Function`.\n */\nfunction isFunction(value) {return typeof value === 'function';}\n\n\n/**\n * Determines if a value is a regular expression object.\n *\n * @private\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `RegExp`.\n */\nfunction isRegExp(value) {\n  return toString.call(value) === '[object RegExp]';\n}\n\n\n/**\n * Checks if `obj` is a window object.\n *\n * @private\n * @param {*} obj Object to check\n * @returns {boolean} True if `obj` is a window obj.\n */\nfunction isWindow(obj) {\n  return obj && obj.window === obj;\n}\n\n\nfunction isScope(obj) {\n  return obj && obj.$evalAsync && obj.$watch;\n}\n\n\nfunction isFile(obj) {\n  return toString.call(obj) === '[object File]';\n}\n\n\nfunction isFormData(obj) {\n  return toString.call(obj) === '[object FormData]';\n}\n\n\nfunction isBlob(obj) {\n  return toString.call(obj) === '[object Blob]';\n}\n\n\nfunction isBoolean(value) {\n  return typeof value === 'boolean';\n}\n\n\nfunction isPromiseLike(obj) {\n  return obj && isFunction(obj.then);\n}\n\n\nvar TYPED_ARRAY_REGEXP = /^\\[object (?:Uint8|Uint8Clamped|Uint16|Uint32|Int8|Int16|Int32|Float32|Float64)Array\\]$/;\nfunction isTypedArray(value) {\n  return value && isNumber(value.length) && TYPED_ARRAY_REGEXP.test(toString.call(value));\n}\n\n\nvar trim = function(value) {\n  return isString(value) ? value.trim() : value;\n};\n\n// Copied from:\n// http://docs.closure-library.googlecode.com/git/local_closure_goog_string_string.js.source.html#line1021\n// Prereq: s is a string.\nvar escapeForRegexp = function(s) {\n  return s.replace(/([-()\\[\\]{}+?*.$\\^|,:#<!\\\\])/g, '\\\\$1').\n           replace(/\\x08/g, '\\\\x08');\n};\n\n\n/**\n * @ngdoc function\n * @name angular.isElement\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a DOM element (or wrapped jQuery element).\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).\n */\nfunction isElement(node) {\n  return !!(node &&\n    (node.nodeName  // we are a direct element\n    || (node.prop && node.attr && node.find)));  // we have an on and find method part of jQuery API\n}\n\n/**\n * @param str 'key1,key2,...'\n * @returns {object} in the form of {key1:true, key2:true, ...}\n */\nfunction makeMap(str) {\n  var obj = {}, items = str.split(','), i;\n  for (i = 0; i < items.length; i++) {\n    obj[items[i]] = true;\n  }\n  return obj;\n}\n\n\nfunction nodeName_(element) {\n  return lowercase(element.nodeName || (element[0] && element[0].nodeName));\n}\n\nfunction includes(array, obj) {\n  return Array.prototype.indexOf.call(array, obj) != -1;\n}\n\nfunction arrayRemove(array, value) {\n  var index = array.indexOf(value);\n  if (index >= 0) {\n    array.splice(index, 1);\n  }\n  return index;\n}\n\n/**\n * @ngdoc function\n * @name angular.copy\n * @module ng\n * @kind function\n *\n * @description\n * Creates a deep copy of `source`, which should be an object or an array.\n *\n * * If no destination is supplied, a copy of the object or array is created.\n * * If a destination is provided, all of its elements (for arrays) or properties (for objects)\n *   are deleted and then all elements/properties from the source are copied to it.\n * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.\n * * If `source` is identical to 'destination' an exception will be thrown.\n *\n * @param {*} source The source that will be used to make a copy.\n *                   Can be any type, including primitives, `null`, and `undefined`.\n * @param {(Object|Array)=} destination Destination into which the source is copied. If\n *     provided, must be of the same type as `source`.\n * @returns {*} The copy or updated `destination`, if `destination` was specified.\n *\n * @example\n <example module=\"copyExample\">\n <file name=\"index.html\">\n <div ng-controller=\"ExampleController\">\n <form novalidate class=\"simple-form\">\n Name: <input type=\"text\" ng-model=\"user.name\" /><br />\n E-mail: <input type=\"email\" ng-model=\"user.email\" /><br />\n Gender: <input type=\"radio\" ng-model=\"user.gender\" value=\"male\" />male\n <input type=\"radio\" ng-model=\"user.gender\" value=\"female\" />female<br />\n <button ng-click=\"reset()\">RESET</button>\n <button ng-click=\"update(user)\">SAVE</button>\n </form>\n <pre>form = {{user | json}}</pre>\n <pre>master = {{master | json}}</pre>\n </div>\n\n <script>\n  angular.module('copyExample', [])\n    .controller('ExampleController', ['$scope', function($scope) {\n      $scope.master= {};\n\n      $scope.update = function(user) {\n        // Example with 1 argument\n        $scope.master= angular.copy(user);\n      };\n\n      $scope.reset = function() {\n        // Example with 2 arguments\n        angular.copy($scope.master, $scope.user);\n      };\n\n      $scope.reset();\n    }]);\n </script>\n </file>\n </example>\n */\nfunction copy(source, destination) {\n  var stackSource = [];\n  var stackDest = [];\n\n  if (destination) {\n    if (isTypedArray(destination)) {\n      throw ngMinErr('cpta', \"Can't copy! TypedArray destination cannot be mutated.\");\n    }\n    if (source === destination) {\n      throw ngMinErr('cpi', \"Can't copy! Source and destination are identical.\");\n    }\n\n    // Empty the destination object\n    if (isArray(destination)) {\n      destination.length = 0;\n    } else {\n      forEach(destination, function(value, key) {\n        if (key !== '$$hashKey') {\n          delete destination[key];\n        }\n      });\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n    return copyRecurse(source, destination);\n  }\n\n  return copyElement(source);\n\n  function copyRecurse(source, destination) {\n    var h = destination.$$hashKey;\n    var result, key;\n    if (isArray(source)) {\n      for (var i = 0, ii = source.length; i < ii; i++) {\n        destination.push(copyElement(source[i]));\n      }\n    } else if (isBlankObject(source)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in source) {\n        destination[key] = copyElement(source[key]);\n      }\n    } else if (source && typeof source.hasOwnProperty === 'function') {\n      // Slow path, which must rely on hasOwnProperty\n      for (key in source) {\n        if (source.hasOwnProperty(key)) {\n          destination[key] = copyElement(source[key]);\n        }\n      }\n    } else {\n      // Slowest path --- hasOwnProperty can't be called as a method\n      for (key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          destination[key] = copyElement(source[key]);\n        }\n      }\n    }\n    setHashKey(destination, h);\n    return destination;\n  }\n\n  function copyElement(source) {\n    // Simple values\n    if (!isObject(source)) {\n      return source;\n    }\n\n    // Already copied values\n    var index = stackSource.indexOf(source);\n    if (index !== -1) {\n      return stackDest[index];\n    }\n\n    if (isWindow(source) || isScope(source)) {\n      throw ngMinErr('cpws',\n        \"Can't copy! Making copies of Window or Scope instances is not supported.\");\n    }\n\n    var needsRecurse = false;\n    var destination;\n\n    if (isArray(source)) {\n      destination = [];\n      needsRecurse = true;\n    } else if (isTypedArray(source)) {\n      destination = new source.constructor(source);\n    } else if (isDate(source)) {\n      destination = new Date(source.getTime());\n    } else if (isRegExp(source)) {\n      destination = new RegExp(source.source, source.toString().match(/[^\\/]*$/)[0]);\n      destination.lastIndex = source.lastIndex;\n    } else if (isBlob(source)) {\n      destination = new source.constructor([source], {type: source.type});\n    } else if (isFunction(source.cloneNode)) {\n        destination = source.cloneNode(true);\n    } else {\n      destination = Object.create(getPrototypeOf(source));\n      needsRecurse = true;\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n\n    return needsRecurse\n      ? copyRecurse(source, destination)\n      : destination;\n  }\n}\n\n/**\n * Creates a shallow copy of an object, an array or a primitive.\n *\n * Assumes that there are no proto properties for objects.\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for (var i = 0, ii = src.length; i < ii; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.equals\n * @module ng\n * @kind function\n *\n * @description\n * Determines if two objects or two values are equivalent. Supports value types, regular\n * expressions, arrays and objects.\n *\n * Two objects or values are considered equivalent if at least one of the following is true:\n *\n * * Both objects or values pass `===` comparison.\n * * Both objects or values are of the same type and all of their properties are equal by\n *   comparing them with `angular.equals`.\n * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)\n * * Both values represent the same regular expression (In JavaScript,\n *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual\n *   representation matches).\n *\n * During a property comparison, properties of `function` type and properties with names\n * that begin with `$` are ignored.\n *\n * Scope and DOMWindow objects are being compared only by identify (`===`).\n *\n * @param {*} o1 Object or value to compare.\n * @param {*} o2 Object or value to compare.\n * @returns {boolean} True if arguments are equal.\n */\nfunction equals(o1, o2) {\n  if (o1 === o2) return true;\n  if (o1 === null || o2 === null) return false;\n  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN\n  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;\n  if (t1 == t2) {\n    if (t1 == 'object') {\n      if (isArray(o1)) {\n        if (!isArray(o2)) return false;\n        if ((length = o1.length) == o2.length) {\n          for (key = 0; key < length; key++) {\n            if (!equals(o1[key], o2[key])) return false;\n          }\n          return true;\n        }\n      } else if (isDate(o1)) {\n        if (!isDate(o2)) return false;\n        return equals(o1.getTime(), o2.getTime());\n      } else if (isRegExp(o1)) {\n        return isRegExp(o2) ? o1.toString() == o2.toString() : false;\n      } else {\n        if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) ||\n          isArray(o2) || isDate(o2) || isRegExp(o2)) return false;\n        keySet = createMap();\n        for (key in o1) {\n          if (key.charAt(0) === '$' || isFunction(o1[key])) continue;\n          if (!equals(o1[key], o2[key])) return false;\n          keySet[key] = true;\n        }\n        for (key in o2) {\n          if (!(key in keySet) &&\n              key.charAt(0) !== '$' &&\n              isDefined(o2[key]) &&\n              !isFunction(o2[key])) return false;\n        }\n        return true;\n      }\n    }\n  }\n  return false;\n}\n\nvar csp = function() {\n  if (!isDefined(csp.rules)) {\n\n\n    var ngCspElement = (document.querySelector('[ng-csp]') ||\n                    document.querySelector('[data-ng-csp]'));\n\n    if (ngCspElement) {\n      var ngCspAttribute = ngCspElement.getAttribute('ng-csp') ||\n                    ngCspElement.getAttribute('data-ng-csp');\n      csp.rules = {\n        noUnsafeEval: !ngCspAttribute || (ngCspAttribute.indexOf('no-unsafe-eval') !== -1),\n        noInlineStyle: !ngCspAttribute || (ngCspAttribute.indexOf('no-inline-style') !== -1)\n      };\n    } else {\n      csp.rules = {\n        noUnsafeEval: noUnsafeEval(),\n        noInlineStyle: false\n      };\n    }\n  }\n\n  return csp.rules;\n\n  function noUnsafeEval() {\n    try {\n      /* jshint -W031, -W054 */\n      new Function('');\n      /* jshint +W031, +W054 */\n      return false;\n    } catch (e) {\n      return true;\n    }\n  }\n};\n\n/**\n * @ngdoc directive\n * @module ng\n * @name ngJq\n *\n * @element ANY\n * @param {string=} ngJq the name of the library available under `window`\n * to be used for angular.element\n * @description\n * Use this directive to force the angular.element library.  This should be\n * used to force either jqLite by leaving ng-jq blank or setting the name of\n * the jquery variable under window (eg. jQuery).\n *\n * Since angular looks for this directive when it is loaded (doesn't wait for the\n * DOMContentLoaded event), it must be placed on an element that comes before the script\n * which loads angular. Also, only the first instance of `ng-jq` will be used and all\n * others ignored.\n *\n * @example\n * This example shows how to force jqLite using the `ngJq` directive to the `html` tag.\n ```html\n <!doctype html>\n <html ng-app ng-jq>\n ...\n ...\n </html>\n ```\n * @example\n * This example shows how to use a jQuery based library of a different name.\n * The library name must be available at the top most 'window'.\n ```html\n <!doctype html>\n <html ng-app ng-jq=\"jQueryLib\">\n ...\n ...\n </html>\n ```\n */\nvar jq = function() {\n  if (isDefined(jq.name_)) return jq.name_;\n  var el;\n  var i, ii = ngAttrPrefixes.length, prefix, name;\n  for (i = 0; i < ii; ++i) {\n    prefix = ngAttrPrefixes[i];\n    if (el = document.querySelector('[' + prefix.replace(':', '\\\\:') + 'jq]')) {\n      name = el.getAttribute(prefix + 'jq');\n      break;\n    }\n  }\n\n  return (jq.name_ = name);\n};\n\nfunction concat(array1, array2, index) {\n  return array1.concat(slice.call(array2, index));\n}\n\nfunction sliceArgs(args, startIndex) {\n  return slice.call(args, startIndex || 0);\n}\n\n\n/* jshint -W101 */\n/**\n * @ngdoc function\n * @name angular.bind\n * @module ng\n * @kind function\n *\n * @description\n * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for\n * `fn`). You can supply optional `args` that are prebound to the function. This feature is also\n * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as\n * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).\n *\n * @param {Object} self Context which `fn` should be evaluated in.\n * @param {function()} fn Function to be bound.\n * @param {...*} args Optional arguments to be prebound to the `fn` function call.\n * @returns {function()} Function that wraps the `fn` with all the specified bindings.\n */\n/* jshint +W101 */\nfunction bind(self, fn) {\n  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];\n  if (isFunction(fn) && !(fn instanceof RegExp)) {\n    return curryArgs.length\n      ? function() {\n          return arguments.length\n            ? fn.apply(self, concat(curryArgs, arguments, 0))\n            : fn.apply(self, curryArgs);\n        }\n      : function() {\n          return arguments.length\n            ? fn.apply(self, arguments)\n            : fn.call(self);\n        };\n  } else {\n    // in IE, native methods are not functions so they cannot be bound (note: they don't need to be)\n    return fn;\n  }\n}\n\n\nfunction toJsonReplacer(key, value) {\n  var val = value;\n\n  if (typeof key === 'string' && key.charAt(0) === '$' && key.charAt(1) === '$') {\n    val = undefined;\n  } else if (isWindow(value)) {\n    val = '$WINDOW';\n  } else if (value &&  document === value) {\n    val = '$DOCUMENT';\n  } else if (isScope(value)) {\n    val = '$SCOPE';\n  }\n\n  return val;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.toJson\n * @module ng\n * @kind function\n *\n * @description\n * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be\n * stripped since angular uses this notation internally.\n *\n * @param {Object|Array|Date|string|number} obj Input to be serialized into JSON.\n * @param {boolean|number} [pretty=2] If set to true, the JSON output will contain newlines and whitespace.\n *    If set to an integer, the JSON output will contain that many spaces per indentation.\n * @returns {string|undefined} JSON-ified string representing `obj`.\n */\nfunction toJson(obj, pretty) {\n  if (isUndefined(obj)) return undefined;\n  if (!isNumber(pretty)) {\n    pretty = pretty ? 2 : null;\n  }\n  return JSON.stringify(obj, toJsonReplacer, pretty);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.fromJson\n * @module ng\n * @kind function\n *\n * @description\n * Deserializes a JSON string.\n *\n * @param {string} json JSON string to deserialize.\n * @returns {Object|Array|string|number} Deserialized JSON string.\n */\nfunction fromJson(json) {\n  return isString(json)\n      ? JSON.parse(json)\n      : json;\n}\n\n\nvar ALL_COLONS = /:/g;\nfunction timezoneToOffset(timezone, fallback) {\n  // IE/Edge do not \"understand\" colon (`:`) in timezone\n  timezone = timezone.replace(ALL_COLONS, '');\n  var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n  return isNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\n\n\nfunction addDateMinutes(date, minutes) {\n  date = new Date(date.getTime());\n  date.setMinutes(date.getMinutes() + minutes);\n  return date;\n}\n\n\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n  reverse = reverse ? -1 : 1;\n  var dateTimezoneOffset = date.getTimezoneOffset();\n  var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n  return addDateMinutes(date, reverse * (timezoneOffset - dateTimezoneOffset));\n}\n\n\n/**\n * @returns {string} Returns the string representation of the element.\n */\nfunction startingTag(element) {\n  element = jqLite(element).clone();\n  try {\n    // turns out IE does not let you set .html() on elements which\n    // are not allowed to have children. So we just ignore it.\n    element.empty();\n  } catch (e) {}\n  var elemHtml = jqLite('<div>').append(element).html();\n  try {\n    return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :\n        elemHtml.\n          match(/^(<[^>]+>)/)[1].\n          replace(/^<([\\w\\-]+)/, function(match, nodeName) {return '<' + lowercase(nodeName);});\n  } catch (e) {\n    return lowercase(elemHtml);\n  }\n\n}\n\n\n/////////////////////////////////////////////////\n\n/**\n * Tries to decode the URI component without throwing an exception.\n *\n * @private\n * @param str value potential URI component to check.\n * @returns {boolean} True if `value` can be decoded\n * with the decodeURIComponent function.\n */\nfunction tryDecodeURIComponent(value) {\n  try {\n    return decodeURIComponent(value);\n  } catch (e) {\n    // Ignore any invalid uri component\n  }\n}\n\n\n/**\n * Parses an escaped url query string into key-value pairs.\n * @returns {Object.<string,boolean|Array>}\n */\nfunction parseKeyValue(/**string*/keyValue) {\n  var obj = {};\n  forEach((keyValue || \"\").split('&'), function(keyValue) {\n    var splitPoint, key, val;\n    if (keyValue) {\n      key = keyValue = keyValue.replace(/\\+/g,'%20');\n      splitPoint = keyValue.indexOf('=');\n      if (splitPoint !== -1) {\n        key = keyValue.substring(0, splitPoint);\n        val = keyValue.substring(splitPoint + 1);\n      }\n      key = tryDecodeURIComponent(key);\n      if (isDefined(key)) {\n        val = isDefined(val) ? tryDecodeURIComponent(val) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if (isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key],val];\n        }\n      }\n    }\n  });\n  return obj;\n}\n\nfunction toKeyValue(obj) {\n  var parts = [];\n  forEach(obj, function(value, key) {\n    if (isArray(value)) {\n      forEach(value, function(arrayValue) {\n        parts.push(encodeUriQuery(key, true) +\n                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));\n      });\n    } else {\n    parts.push(encodeUriQuery(key, true) +\n               (value === true ? '' : '=' + encodeUriQuery(value, true)));\n    }\n  });\n  return parts.length ? parts.join('&') : '';\n}\n\n\n/**\n * We need our custom method because encodeURIComponent is too aggressive and doesn't follow\n * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path\n * segments:\n *    segment       = *pchar\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriSegment(val) {\n  return encodeUriQuery(val, true).\n             replace(/%26/gi, '&').\n             replace(/%3D/gi, '=').\n             replace(/%2B/gi, '+');\n}\n\n\n/**\n * This method is intended for encoding *key* or *value* parts of query component. We need a custom\n * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be\n * encoded per http://tools.ietf.org/html/rfc3986:\n *    query       = *( pchar / \"/\" / \"?\" )\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriQuery(val, pctEncodeSpaces) {\n  return encodeURIComponent(val).\n             replace(/%40/gi, '@').\n             replace(/%3A/gi, ':').\n             replace(/%24/g, '$').\n             replace(/%2C/gi, ',').\n             replace(/%3B/gi, ';').\n             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));\n}\n\nvar ngAttrPrefixes = ['ng-', 'data-ng-', 'ng:', 'x-ng-'];\n\nfunction getNgAttribute(element, ngAttr) {\n  var attr, i, ii = ngAttrPrefixes.length;\n  for (i = 0; i < ii; ++i) {\n    attr = ngAttrPrefixes[i] + ngAttr;\n    if (isString(attr = element.getAttribute(attr))) {\n      return attr;\n    }\n  }\n  return null;\n}\n\n/**\n * @ngdoc directive\n * @name ngApp\n * @module ng\n *\n * @element ANY\n * @param {angular.Module} ngApp an optional application\n *   {@link angular.module module} name to load.\n * @param {boolean=} ngStrictDi if this attribute is present on the app element, the injector will be\n *   created in \"strict-di\" mode. This means that the application will fail to invoke functions which\n *   do not use explicit function annotation (and are thus unsuitable for minification), as described\n *   in {@link guide/di the Dependency Injection guide}, and useful debugging info will assist in\n *   tracking down the root of these bugs.\n *\n * @description\n *\n * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive\n * designates the **root element** of the application and is typically placed near the root element\n * of the page - e.g. on the `<body>` or `<html>` tags.\n *\n * Only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`\n * found in the document will be used to define the root element to auto-bootstrap as an\n * application. To run multiple applications in an HTML document you must manually bootstrap them using\n * {@link angular.bootstrap} instead. AngularJS applications cannot be nested within each other.\n *\n * You can specify an **AngularJS module** to be used as the root module for the application.  This\n * module will be loaded into the {@link auto.$injector} when the application is bootstrapped. It\n * should contain the application code needed or have dependencies on other modules that will\n * contain the code. See {@link angular.module} for more information.\n *\n * In the example below if the `ngApp` directive were not placed on the `html` element then the\n * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`\n * would not be resolved to `3`.\n *\n * `ngApp` is the easiest, and most common way to bootstrap an application.\n *\n <example module=\"ngAppDemo\">\n   <file name=\"index.html\">\n   <div ng-controller=\"ngAppDemoController\">\n     I can add: {{a}} + {{b}} =  {{ a+b }}\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {\n     $scope.a = 1;\n     $scope.b = 2;\n   });\n   </file>\n </example>\n *\n * Using `ngStrictDi`, you would see something like this:\n *\n <example ng-app-included=\"true\">\n   <file name=\"index.html\">\n   <div ng-app=\"ngAppStrictDemo\" ng-strict-di>\n       <div ng-controller=\"GoodController1\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style (see\n              script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"GoodController2\">\n           Name: <input ng-model=\"name\"><br />\n           Hello, {{name}}!\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style\n              (see script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"BadController\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>The controller could not be instantiated, due to relying\n              on automatic function annotations (which are disabled in\n              strict mode). As such, the content of this section is not\n              interpolated, and there should be an error in your web console.\n           </p>\n       </div>\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppStrictDemo', [])\n     // BadController will fail to instantiate, due to relying on automatic function annotation,\n     // rather than an explicit annotation\n     .controller('BadController', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     })\n     // Unlike BadController, GoodController1 and GoodController2 will not fail to be instantiated,\n     // due to using explicit annotations using the array style and $inject property, respectively.\n     .controller('GoodController1', ['$scope', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     }])\n     .controller('GoodController2', GoodController2);\n     function GoodController2($scope) {\n       $scope.name = \"World\";\n     }\n     GoodController2.$inject = ['$scope'];\n   </file>\n   <file name=\"style.css\">\n   div[ng-controller] {\n       margin-bottom: 1em;\n       -webkit-border-radius: 4px;\n       border-radius: 4px;\n       border: 1px solid;\n       padding: .5em;\n   }\n   div[ng-controller^=Good] {\n       border-color: #d6e9c6;\n       background-color: #dff0d8;\n       color: #3c763d;\n   }\n   div[ng-controller^=Bad] {\n       border-color: #ebccd1;\n       background-color: #f2dede;\n       color: #a94442;\n       margin-bottom: 0;\n   }\n   </file>\n </example>\n */\nfunction angularInit(element, bootstrap) {\n  var appElement,\n      module,\n      config = {};\n\n  // The element `element` has priority over any other element\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n\n    if (!appElement && element.hasAttribute && element.hasAttribute(name)) {\n      appElement = element;\n      module = element.getAttribute(name);\n    }\n  });\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n    var candidate;\n\n    if (!appElement && (candidate = element.querySelector('[' + name.replace(':', '\\\\:') + ']'))) {\n      appElement = candidate;\n      module = candidate.getAttribute(name);\n    }\n  });\n  if (appElement) {\n    config.strictDi = getNgAttribute(appElement, \"strict-di\") !== null;\n    bootstrap(appElement, module ? [module] : [], config);\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.bootstrap\n * @module ng\n * @description\n * Use this function to manually start up angular application.\n *\n * See: {@link guide/bootstrap Bootstrap}\n *\n * Note that Protractor based end-to-end tests cannot use this function to bootstrap manually.\n * They must use {@link ng.directive:ngApp ngApp}.\n *\n * Angular will detect if it has been loaded into the browser more than once and only allow the\n * first loaded script to be bootstrapped and will report a warning to the browser console for\n * each of the subsequent scripts. This prevents strange results in applications, where otherwise\n * multiple instances of Angular try to work on the DOM.\n *\n * ```html\n * <!doctype html>\n * <html>\n * <body>\n * <div ng-controller=\"WelcomeController\">\n *   {{greeting}}\n * </div>\n *\n * <script src=\"angular.js\"></script>\n * <script>\n *   var app = angular.module('demo', [])\n *   .controller('WelcomeController', function($scope) {\n *       $scope.greeting = 'Welcome!';\n *   });\n *   angular.bootstrap(document, ['demo']);\n * </script>\n * </body>\n * </html>\n * ```\n *\n * @param {DOMElement} element DOM element which is the root of angular application.\n * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n * @param {Object=} config an object for defining configuration options for the application. The\n *     following keys are supported:\n *\n * * `strictDi` - disable automatic function annotation for the application. This is meant to\n *   assist in finding bugs which break minified code. Defaults to `false`.\n *\n * @returns {auto.$injector} Returns the newly created injector for this app.\n */\nfunction bootstrap(element, modules, config) {\n  if (!isObject(config)) config = {};\n  var defaultConfig = {\n    strictDi: false\n  };\n  config = extend(defaultConfig, config);\n  var doBootstrap = function() {\n    element = jqLite(element);\n\n    if (element.injector()) {\n      var tag = (element[0] === document) ? 'document' : startingTag(element);\n      //Encode angle brackets to prevent input from being sanitized to empty string #8683\n      throw ngMinErr(\n          'btstrpd',\n          \"App already bootstrapped with this element '{0}'\",\n          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));\n    }\n\n    modules = modules || [];\n    modules.unshift(['$provide', function($provide) {\n      $provide.value('$rootElement', element);\n    }]);\n\n    if (config.debugInfoEnabled) {\n      // Pushing so that this overrides `debugInfoEnabled` setting defined in user's `modules`.\n      modules.push(['$compileProvider', function($compileProvider) {\n        $compileProvider.debugInfoEnabled(true);\n      }]);\n    }\n\n    modules.unshift('ng');\n    var injector = createInjector(modules, config.strictDi);\n    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector',\n       function bootstrapApply(scope, element, compile, injector) {\n        scope.$apply(function() {\n          element.data('$injector', injector);\n          compile(element)(scope);\n        });\n      }]\n    );\n    return injector;\n  };\n\n  var NG_ENABLE_DEBUG_INFO = /^NG_ENABLE_DEBUG_INFO!/;\n  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;\n\n  if (window && NG_ENABLE_DEBUG_INFO.test(window.name)) {\n    config.debugInfoEnabled = true;\n    window.name = window.name.replace(NG_ENABLE_DEBUG_INFO, '');\n  }\n\n  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {\n    return doBootstrap();\n  }\n\n  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');\n  angular.resumeBootstrap = function(extraModules) {\n    forEach(extraModules, function(module) {\n      modules.push(module);\n    });\n    return doBootstrap();\n  };\n\n  if (isFunction(angular.resumeDeferredBootstrap)) {\n    angular.resumeDeferredBootstrap();\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.reloadWithDebugInfo\n * @module ng\n * @description\n * Use this function to reload the current application with debug information turned on.\n * This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.\n *\n * See {@link ng.$compileProvider#debugInfoEnabled} for more.\n */\nfunction reloadWithDebugInfo() {\n  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;\n  window.location.reload();\n}\n\n/**\n * @name angular.getTestability\n * @module ng\n * @description\n * Get the testability service for the instance of Angular on the given\n * element.\n * @param {DOMElement} element DOM element which is the root of angular application.\n */\nfunction getTestability(rootElement) {\n  var injector = angular.element(rootElement).injector();\n  if (!injector) {\n    throw ngMinErr('test',\n      'no injector found for element argument to getTestability');\n  }\n  return injector.get('$$testability');\n}\n\nvar SNAKE_CASE_REGEXP = /[A-Z]/g;\nfunction snake_case(name, separator) {\n  separator = separator || '_';\n  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n    return (pos ? separator : '') + letter.toLowerCase();\n  });\n}\n\nvar bindJQueryFired = false;\nvar skipDestroyOnNextJQueryCleanData;\nfunction bindJQuery() {\n  var originalCleanData;\n\n  if (bindJQueryFired) {\n    return;\n  }\n\n  // bind to jQuery if present;\n  var jqName = jq();\n  jQuery = isUndefined(jqName) ? window.jQuery :   // use jQuery (if present)\n           !jqName             ? undefined     :   // use jqLite\n                                 window[jqName];   // use jQuery specified by `ngJq`\n\n  // Use jQuery if it exists with proper functionality, otherwise default to us.\n  // Angular 1.2+ requires jQuery 1.7+ for on()/off() support.\n  // Angular 1.3+ technically requires at least jQuery 2.1+ but it may work with older\n  // versions. It will not work for sure with jQuery <1.7, though.\n  if (jQuery && jQuery.fn.on) {\n    jqLite = jQuery;\n    extend(jQuery.fn, {\n      scope: JQLitePrototype.scope,\n      isolateScope: JQLitePrototype.isolateScope,\n      controller: JQLitePrototype.controller,\n      injector: JQLitePrototype.injector,\n      inheritedData: JQLitePrototype.inheritedData\n    });\n\n    // All nodes removed from the DOM via various jQuery APIs like .remove()\n    // are passed through jQuery.cleanData. Monkey-patch this method to fire\n    // the $destroy event on all removed nodes.\n    originalCleanData = jQuery.cleanData;\n    jQuery.cleanData = function(elems) {\n      var events;\n      if (!skipDestroyOnNextJQueryCleanData) {\n        for (var i = 0, elem; (elem = elems[i]) != null; i++) {\n          events = jQuery._data(elem, \"events\");\n          if (events && events.$destroy) {\n            jQuery(elem).triggerHandler('$destroy');\n          }\n        }\n      } else {\n        skipDestroyOnNextJQueryCleanData = false;\n      }\n      originalCleanData(elems);\n    };\n  } else {\n    jqLite = JQLite;\n  }\n\n  angular.element = jqLite;\n\n  // Prevent double-proxying.\n  bindJQueryFired = true;\n}\n\n/**\n * throw error if the argument is falsy.\n */\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', \"Argument '{0}' is {1}\", (name || '?'), (reason || \"required\"));\n  }\n  return arg;\n}\n\nfunction assertArgFn(arg, name, acceptArrayAnnotation) {\n  if (acceptArrayAnnotation && isArray(arg)) {\n      arg = arg[arg.length - 1];\n  }\n\n  assertArg(isFunction(arg), name, 'not a function, got ' +\n      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));\n  return arg;\n}\n\n/**\n * throw error if the name given is hasOwnProperty\n * @param  {String} name    the name to test\n * @param  {String} context the context in which the name is used, such as module or directive\n */\nfunction assertNotHasOwnProperty(name, context) {\n  if (name === 'hasOwnProperty') {\n    throw ngMinErr('badname', \"hasOwnProperty is not a valid {0} name\", context);\n  }\n}\n\n/**\n * Return the value accessible from the object by path. Any undefined traversals are ignored\n * @param {Object} obj starting object\n * @param {String} path path to traverse\n * @param {boolean} [bindFnToScope=true]\n * @returns {Object} value as accessible by path\n */\n//TODO(misko): this function needs to be removed\nfunction getter(obj, path, bindFnToScope) {\n  if (!path) return obj;\n  var keys = path.split('.');\n  var key;\n  var lastInstance = obj;\n  var len = keys.length;\n\n  for (var i = 0; i < len; i++) {\n    key = keys[i];\n    if (obj) {\n      obj = (lastInstance = obj)[key];\n    }\n  }\n  if (!bindFnToScope && isFunction(obj)) {\n    return bind(lastInstance, obj);\n  }\n  return obj;\n}\n\n/**\n * Return the DOM siblings between the first and last node in the given array.\n * @param {Array} array like object\n * @returns {Array} the inputted object or a jqLite collection containing the nodes\n */\nfunction getBlockNodes(nodes) {\n  // TODO(perf): update `nodes` instead of creating a new object?\n  var node = nodes[0];\n  var endNode = nodes[nodes.length - 1];\n  var blockNodes;\n\n  for (var i = 1; node !== endNode && (node = node.nextSibling); i++) {\n    if (blockNodes || nodes[i] !== node) {\n      if (!blockNodes) {\n        blockNodes = jqLite(slice.call(nodes, 0, i));\n      }\n      blockNodes.push(node);\n    }\n  }\n\n  return blockNodes || nodes;\n}\n\n\n/**\n * Creates a new object without a prototype. This object is useful for lookup without having to\n * guard against prototypically inherited properties via hasOwnProperty.\n *\n * Related micro-benchmarks:\n * - http://jsperf.com/object-create2\n * - http://jsperf.com/proto-map-lookup/2\n * - http://jsperf.com/for-in-vs-object-keys2\n *\n * @returns {Object}\n */\nfunction createMap() {\n  return Object.create(null);\n}\n\nvar NODE_TYPE_ELEMENT = 1;\nvar NODE_TYPE_ATTRIBUTE = 2;\nvar NODE_TYPE_TEXT = 3;\nvar NODE_TYPE_COMMENT = 8;\nvar NODE_TYPE_DOCUMENT = 9;\nvar NODE_TYPE_DOCUMENT_FRAGMENT = 11;\n\n/**\n * @ngdoc type\n * @name angular.Module\n * @module ng\n * @description\n *\n * Interface for configuring angular {@link angular.module modules}.\n */\n\nfunction setupModuleLoader(window) {\n\n  var $injectorMinErr = minErr('$injector');\n  var ngMinErr = minErr('ng');\n\n  function ensure(obj, name, factory) {\n    return obj[name] || (obj[name] = factory());\n  }\n\n  var angular = ensure(window, 'angular', Object);\n\n  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap\n  angular.$$minErr = angular.$$minErr || minErr;\n\n  return ensure(angular, 'module', function() {\n    /** @type {Object.<string, angular.Module>} */\n    var modules = {};\n\n    /**\n     * @ngdoc function\n     * @name angular.module\n     * @module ng\n     * @description\n     *\n     * The `angular.module` is a global place for creating, registering and retrieving Angular\n     * modules.\n     * All modules (angular core or 3rd party) that should be available to an application must be\n     * registered using this mechanism.\n     *\n     * Passing one argument retrieves an existing {@link angular.Module},\n     * whereas passing more than one argument creates a new {@link angular.Module}\n     *\n     *\n     * # Module\n     *\n     * A module is a collection of services, directives, controllers, filters, and configuration information.\n     * `angular.module` is used to configure the {@link auto.$injector $injector}.\n     *\n     * ```js\n     * // Create a new module\n     * var myModule = angular.module('myModule', []);\n     *\n     * // register a new service\n     * myModule.value('appName', 'MyCoolApp');\n     *\n     * // configure existing services inside initialization blocks.\n     * myModule.config(['$locationProvider', function($locationProvider) {\n     *   // Configure existing providers\n     *   $locationProvider.hashPrefix('!');\n     * }]);\n     * ```\n     *\n     * Then you can create an injector and load your modules like this:\n     *\n     * ```js\n     * var injector = angular.injector(['ng', 'myModule'])\n     * ```\n     *\n     * However it's more likely that you'll just use\n     * {@link ng.directive:ngApp ngApp} or\n     * {@link angular.bootstrap} to simplify this process for you.\n     *\n     * @param {!string} name The name of the module to create or retrieve.\n     * @param {!Array.<string>=} requires If specified then new module is being created. If\n     *        unspecified then the module is being retrieved for further configuration.\n     * @param {Function=} configFn Optional configuration function for the module. Same as\n     *        {@link angular.Module#config Module#config()}.\n     * @returns {angular.Module} new module with the {@link angular.Module} api.\n     */\n    return function module(name, requires, configFn) {\n      var assertNotHasOwnProperty = function(name, context) {\n        if (name === 'hasOwnProperty') {\n          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n        }\n      };\n\n      assertNotHasOwnProperty(name, 'module');\n      if (requires && modules.hasOwnProperty(name)) {\n        modules[name] = null;\n      }\n      return ensure(modules, name, function() {\n        if (!requires) {\n          throw $injectorMinErr('nomod', \"Module '{0}' is not available! You either misspelled \" +\n             \"the module name or forgot to load it. If registering a module ensure that you \" +\n             \"specify the dependencies as the second argument.\", name);\n        }\n\n        /** @type {!Array.<Array.<*>>} */\n        var invokeQueue = [];\n\n        /** @type {!Array.<Function>} */\n        var configBlocks = [];\n\n        /** @type {!Array.<Function>} */\n        var runBlocks = [];\n\n        var config = invokeLater('$injector', 'invoke', 'push', configBlocks);\n\n        /** @type {angular.Module} */\n        var moduleInstance = {\n          // Private state\n          _invokeQueue: invokeQueue,\n          _configBlocks: configBlocks,\n          _runBlocks: runBlocks,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#requires\n           * @module ng\n           *\n           * @description\n           * Holds the list of modules which the injector will load before the current module is\n           * loaded.\n           */\n          requires: requires,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#name\n           * @module ng\n           *\n           * @description\n           * Name of the module.\n           */\n          name: name,\n\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#provider\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerType Construction function for creating new instance of the\n           *                                service.\n           * @description\n           * See {@link auto.$provide#provider $provide.provider()}.\n           */\n          provider: invokeLaterAndSetModuleName('$provide', 'provider'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#factory\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerFunction Function for creating new instance of the service.\n           * @description\n           * See {@link auto.$provide#factory $provide.factory()}.\n           */\n          factory: invokeLaterAndSetModuleName('$provide', 'factory'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#service\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} constructor A constructor function that will be instantiated.\n           * @description\n           * See {@link auto.$provide#service $provide.service()}.\n           */\n          service: invokeLaterAndSetModuleName('$provide', 'service'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#value\n           * @module ng\n           * @param {string} name service name\n           * @param {*} object Service instance object.\n           * @description\n           * See {@link auto.$provide#value $provide.value()}.\n           */\n          value: invokeLater('$provide', 'value'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#constant\n           * @module ng\n           * @param {string} name constant name\n           * @param {*} object Constant value.\n           * @description\n           * Because the constants are fixed, they get applied before other provide methods.\n           * See {@link auto.$provide#constant $provide.constant()}.\n           */\n          constant: invokeLater('$provide', 'constant', 'unshift'),\n\n           /**\n           * @ngdoc method\n           * @name angular.Module#decorator\n           * @module ng\n           * @param {string} name The name of the service to decorate.\n           * @param {Function} decorFn This function will be invoked when the service needs to be\n           *                           instantiated and should return the decorated service instance.\n           * @description\n           * See {@link auto.$provide#decorator $provide.decorator()}.\n           */\n          decorator: invokeLaterAndSetModuleName('$provide', 'decorator'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#animation\n           * @module ng\n           * @param {string} name animation name\n           * @param {Function} animationFactory Factory function for creating new instance of an\n           *                                    animation.\n           * @description\n           *\n           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.\n           *\n           *\n           * Defines an animation hook that can be later used with\n           * {@link $animate $animate} service and directives that use this service.\n           *\n           * ```js\n           * module.animation('.animation-name', function($inject1, $inject2) {\n           *   return {\n           *     eventName : function(element, done) {\n           *       //code to run the animation\n           *       //once complete, then run done()\n           *       return function cancellationFunction(element) {\n           *         //code to cancel the animation\n           *       }\n           *     }\n           *   }\n           * })\n           * ```\n           *\n           * See {@link ng.$animateProvider#register $animateProvider.register()} and\n           * {@link ngAnimate ngAnimate module} for more information.\n           */\n          animation: invokeLaterAndSetModuleName('$animateProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#filter\n           * @module ng\n           * @param {string} name Filter name - this must be a valid angular expression identifier\n           * @param {Function} filterFactory Factory function for creating new instance of filter.\n           * @description\n           * See {@link ng.$filterProvider#register $filterProvider.register()}.\n           *\n           * <div class=\"alert alert-warning\">\n           * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n           * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n           * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n           * (`myapp_subsection_filterx`).\n           * </div>\n           */\n          filter: invokeLaterAndSetModuleName('$filterProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#controller\n           * @module ng\n           * @param {string|Object} name Controller name, or an object map of controllers where the\n           *    keys are the names and the values are the constructors.\n           * @param {Function} constructor Controller constructor function.\n           * @description\n           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.\n           */\n          controller: invokeLaterAndSetModuleName('$controllerProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#directive\n           * @module ng\n           * @param {string|Object} name Directive name, or an object map of directives where the\n           *    keys are the names and the values are the factories.\n           * @param {Function} directiveFactory Factory function for creating new instance of\n           * directives.\n           * @description\n           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.\n           */\n          directive: invokeLaterAndSetModuleName('$compileProvider', 'directive'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#config\n           * @module ng\n           * @param {Function} configFn Execute this function on module load. Useful for service\n           *    configuration.\n           * @description\n           * Use this method to register work which needs to be performed on module loading.\n           * For more about how to configure services, see\n           * {@link providers#provider-recipe Provider Recipe}.\n           */\n          config: config,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#run\n           * @module ng\n           * @param {Function} initializationFn Execute this function after injector creation.\n           *    Useful for application initialization.\n           * @description\n           * Use this method to register work which should be performed when the injector is done\n           * loading all modules.\n           */\n          run: function(block) {\n            runBlocks.push(block);\n            return this;\n          }\n        };\n\n        if (configFn) {\n          config(configFn);\n        }\n\n        return moduleInstance;\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @param {String=} insertMethod\n         * @returns {angular.Module}\n         */\n        function invokeLater(provider, method, insertMethod, queue) {\n          if (!queue) queue = invokeQueue;\n          return function() {\n            queue[insertMethod || 'push']([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @returns {angular.Module}\n         */\n        function invokeLaterAndSetModuleName(provider, method) {\n          return function(recipeName, factoryFunction) {\n            if (factoryFunction && isFunction(factoryFunction)) factoryFunction.$$moduleName = name;\n            invokeQueue.push([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n      });\n    };\n  });\n\n}\n\n/* global: toDebugString: true */\n\nfunction serializeObject(obj) {\n  var seen = [];\n\n  return JSON.stringify(obj, function(key, val) {\n    val = toJsonReplacer(key, val);\n    if (isObject(val)) {\n\n      if (seen.indexOf(val) >= 0) return '...';\n\n      seen.push(val);\n    }\n    return val;\n  });\n}\n\nfunction toDebugString(obj) {\n  if (typeof obj === 'function') {\n    return obj.toString().replace(/ \\{[\\s\\S]*$/, '');\n  } else if (isUndefined(obj)) {\n    return 'undefined';\n  } else if (typeof obj !== 'string') {\n    return serializeObject(obj);\n  }\n  return obj;\n}\n\n/* global angularModule: true,\n  version: true,\n\n  $CompileProvider,\n\n  htmlAnchorDirective,\n  inputDirective,\n  inputDirective,\n  formDirective,\n  scriptDirective,\n  selectDirective,\n  styleDirective,\n  optionDirective,\n  ngBindDirective,\n  ngBindHtmlDirective,\n  ngBindTemplateDirective,\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective,\n  ngCloakDirective,\n  ngControllerDirective,\n  ngFormDirective,\n  ngHideDirective,\n  ngIfDirective,\n  ngIncludeDirective,\n  ngIncludeFillContentDirective,\n  ngInitDirective,\n  ngNonBindableDirective,\n  ngPluralizeDirective,\n  ngRepeatDirective,\n  ngShowDirective,\n  ngStyleDirective,\n  ngSwitchDirective,\n  ngSwitchWhenDirective,\n  ngSwitchDefaultDirective,\n  ngOptionsDirective,\n  ngTranscludeDirective,\n  ngModelDirective,\n  ngListDirective,\n  ngChangeDirective,\n  patternDirective,\n  patternDirective,\n  requiredDirective,\n  requiredDirective,\n  minlengthDirective,\n  minlengthDirective,\n  maxlengthDirective,\n  maxlengthDirective,\n  ngValueDirective,\n  ngModelOptionsDirective,\n  ngAttributeAliasDirectives,\n  ngEventDirectives,\n\n  $AnchorScrollProvider,\n  $AnimateProvider,\n  $CoreAnimateCssProvider,\n  $$CoreAnimateJsProvider,\n  $$CoreAnimateQueueProvider,\n  $$AnimateRunnerFactoryProvider,\n  $$AnimateAsyncRunFactoryProvider,\n  $BrowserProvider,\n  $CacheFactoryProvider,\n  $ControllerProvider,\n  $DocumentProvider,\n  $ExceptionHandlerProvider,\n  $FilterProvider,\n  $$ForceReflowProvider,\n  $InterpolateProvider,\n  $IntervalProvider,\n  $$HashMapProvider,\n  $HttpProvider,\n  $HttpParamSerializerProvider,\n  $HttpParamSerializerJQLikeProvider,\n  $HttpBackendProvider,\n  $xhrFactoryProvider,\n  $LocationProvider,\n  $LogProvider,\n  $ParseProvider,\n  $RootScopeProvider,\n  $QProvider,\n  $$QProvider,\n  $$SanitizeUriProvider,\n  $SceProvider,\n  $SceDelegateProvider,\n  $SnifferProvider,\n  $TemplateCacheProvider,\n  $TemplateRequestProvider,\n  $$TestabilityProvider,\n  $TimeoutProvider,\n  $$RAFProvider,\n  $WindowProvider,\n  $$jqLiteProvider,\n  $$CookieReaderProvider\n*/\n\n\n/**\n * @ngdoc object\n * @name angular.version\n * @module ng\n * @description\n * An object that contains information about the current AngularJS version.\n *\n * This object has the following properties:\n *\n * - `full` – `{string}` – Full version string, such as \"0.9.18\".\n * - `major` – `{number}` – Major version number, such as \"0\".\n * - `minor` – `{number}` – Minor version number, such as \"9\".\n * - `dot` – `{number}` – Dot version number, such as \"18\".\n * - `codeName` – `{string}` – Code name of the release, such as \"jiggling-armfat\".\n */\nvar version = {\n  full: '1.4.14',    // all of these placeholder strings will be replaced by grunt's\n  major: 1,    // package task\n  minor: 4,\n  dot: 14,\n  codeName: 'material-distinction'\n};\n\n\nfunction publishExternalAPI(angular) {\n  extend(angular, {\n    'bootstrap': bootstrap,\n    'copy': copy,\n    'extend': extend,\n    'merge': merge,\n    'equals': equals,\n    'element': jqLite,\n    'forEach': forEach,\n    'injector': createInjector,\n    'noop': noop,\n    'bind': bind,\n    'toJson': toJson,\n    'fromJson': fromJson,\n    'identity': identity,\n    'isUndefined': isUndefined,\n    'isDefined': isDefined,\n    'isString': isString,\n    'isFunction': isFunction,\n    'isObject': isObject,\n    'isNumber': isNumber,\n    'isElement': isElement,\n    'isArray': isArray,\n    'version': version,\n    'isDate': isDate,\n    'lowercase': lowercase,\n    'uppercase': uppercase,\n    'callbacks': {counter: 0},\n    'getTestability': getTestability,\n    '$$minErr': minErr,\n    '$$csp': csp,\n    'reloadWithDebugInfo': reloadWithDebugInfo\n  });\n\n  angularModule = setupModuleLoader(window);\n\n  angularModule('ng', ['ngLocale'], ['$provide',\n    function ngModule($provide) {\n      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.\n      $provide.provider({\n        $$sanitizeUri: $$SanitizeUriProvider\n      });\n      $provide.provider('$compile', $CompileProvider).\n        directive({\n            a: htmlAnchorDirective,\n            input: inputDirective,\n            textarea: inputDirective,\n            form: formDirective,\n            script: scriptDirective,\n            select: selectDirective,\n            style: styleDirective,\n            option: optionDirective,\n            ngBind: ngBindDirective,\n            ngBindHtml: ngBindHtmlDirective,\n            ngBindTemplate: ngBindTemplateDirective,\n            ngClass: ngClassDirective,\n            ngClassEven: ngClassEvenDirective,\n            ngClassOdd: ngClassOddDirective,\n            ngCloak: ngCloakDirective,\n            ngController: ngControllerDirective,\n            ngForm: ngFormDirective,\n            ngHide: ngHideDirective,\n            ngIf: ngIfDirective,\n            ngInclude: ngIncludeDirective,\n            ngInit: ngInitDirective,\n            ngNonBindable: ngNonBindableDirective,\n            ngPluralize: ngPluralizeDirective,\n            ngRepeat: ngRepeatDirective,\n            ngShow: ngShowDirective,\n            ngStyle: ngStyleDirective,\n            ngSwitch: ngSwitchDirective,\n            ngSwitchWhen: ngSwitchWhenDirective,\n            ngSwitchDefault: ngSwitchDefaultDirective,\n            ngOptions: ngOptionsDirective,\n            ngTransclude: ngTranscludeDirective,\n            ngModel: ngModelDirective,\n            ngList: ngListDirective,\n            ngChange: ngChangeDirective,\n            pattern: patternDirective,\n            ngPattern: patternDirective,\n            required: requiredDirective,\n            ngRequired: requiredDirective,\n            minlength: minlengthDirective,\n            ngMinlength: minlengthDirective,\n            maxlength: maxlengthDirective,\n            ngMaxlength: maxlengthDirective,\n            ngValue: ngValueDirective,\n            ngModelOptions: ngModelOptionsDirective\n        }).\n        directive({\n          ngInclude: ngIncludeFillContentDirective\n        }).\n        directive(ngAttributeAliasDirectives).\n        directive(ngEventDirectives);\n      $provide.provider({\n        $anchorScroll: $AnchorScrollProvider,\n        $animate: $AnimateProvider,\n        $animateCss: $CoreAnimateCssProvider,\n        $$animateJs: $$CoreAnimateJsProvider,\n        $$animateQueue: $$CoreAnimateQueueProvider,\n        $$AnimateRunner: $$AnimateRunnerFactoryProvider,\n        $$animateAsyncRun: $$AnimateAsyncRunFactoryProvider,\n        $browser: $BrowserProvider,\n        $cacheFactory: $CacheFactoryProvider,\n        $controller: $ControllerProvider,\n        $document: $DocumentProvider,\n        $exceptionHandler: $ExceptionHandlerProvider,\n        $filter: $FilterProvider,\n        $$forceReflow: $$ForceReflowProvider,\n        $interpolate: $InterpolateProvider,\n        $interval: $IntervalProvider,\n        $http: $HttpProvider,\n        $httpParamSerializer: $HttpParamSerializerProvider,\n        $httpParamSerializerJQLike: $HttpParamSerializerJQLikeProvider,\n        $httpBackend: $HttpBackendProvider,\n        $xhrFactory: $xhrFactoryProvider,\n        $location: $LocationProvider,\n        $log: $LogProvider,\n        $parse: $ParseProvider,\n        $rootScope: $RootScopeProvider,\n        $q: $QProvider,\n        $$q: $$QProvider,\n        $sce: $SceProvider,\n        $sceDelegate: $SceDelegateProvider,\n        $sniffer: $SnifferProvider,\n        $templateCache: $TemplateCacheProvider,\n        $templateRequest: $TemplateRequestProvider,\n        $$testability: $$TestabilityProvider,\n        $timeout: $TimeoutProvider,\n        $window: $WindowProvider,\n        $$rAF: $$RAFProvider,\n        $$jqLite: $$jqLiteProvider,\n        $$HashMap: $$HashMapProvider,\n        $$cookieReader: $$CookieReaderProvider\n      });\n    }\n  ]);\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* global JQLitePrototype: true,\n  addEventListenerFn: true,\n  removeEventListenerFn: true,\n  BOOLEAN_ATTR: true,\n  ALIASED_ATTR: true,\n*/\n\n//////////////////////////////////\n//JQLite\n//////////////////////////////////\n\n/**\n * @ngdoc function\n * @name angular.element\n * @module ng\n * @kind function\n *\n * @description\n * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.\n *\n * If jQuery is available, `angular.element` is an alias for the\n * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`\n * delegates to Angular's built-in subset of jQuery, called \"jQuery lite\" or **jqLite**.\n *\n * jqLite is a tiny, API-compatible subset of jQuery that allows\n * Angular to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most\n * commonly needed functionality with the goal of having a very small footprint.\n *\n * To use `jQuery`, simply ensure it is loaded before the `angular.js` file. You can also use the\n * {@link ngJq `ngJq`} directive to specify that jqlite should be used over jQuery, or to use a\n * specific version of jQuery if multiple versions exist on the page.\n *\n * <div class=\"alert alert-info\">**Note:** All element references in Angular are always wrapped with jQuery or\n * jqLite (such as the element argument in a directive's compile / link function). They are never raw DOM references.</div>\n *\n * <div class=\"alert alert-warning\">**Note:** Keep in mind that this function will not find elements\n * by tag name / CSS selector. For lookups by tag name, try instead `angular.element(document).find(...)`\n * or `$document.find()`, or use the standard DOM APIs, e.g. `document.querySelectorAll()`.</div>\n *\n * ## Angular's jqLite\n * jqLite provides only the following jQuery methods:\n *\n * - [`addClass()`](http://api.jquery.com/addClass/)\n * - [`after()`](http://api.jquery.com/after/)\n * - [`append()`](http://api.jquery.com/append/)\n * - [`attr()`](http://api.jquery.com/attr/) - Does not support functions as parameters\n * - [`bind()`](http://api.jquery.com/bind/) - Does not support namespaces, selectors or eventData\n * - [`children()`](http://api.jquery.com/children/) - Does not support selectors\n * - [`clone()`](http://api.jquery.com/clone/)\n * - [`contents()`](http://api.jquery.com/contents/)\n * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`.\n *   As a setter, does not convert numbers to strings or append 'px', and also does not have automatic property prefixing.\n * - [`data()`](http://api.jquery.com/data/)\n * - [`detach()`](http://api.jquery.com/detach/)\n * - [`empty()`](http://api.jquery.com/empty/)\n * - [`eq()`](http://api.jquery.com/eq/)\n * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name\n * - [`hasClass()`](http://api.jquery.com/hasClass/)\n * - [`html()`](http://api.jquery.com/html/)\n * - [`next()`](http://api.jquery.com/next/) - Does not support selectors\n * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData\n * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces, selectors or event object as parameter\n * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors\n * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors\n * - [`prepend()`](http://api.jquery.com/prepend/)\n * - [`prop()`](http://api.jquery.com/prop/)\n * - [`ready()`](http://api.jquery.com/ready/)\n * - [`remove()`](http://api.jquery.com/remove/)\n * - [`removeAttr()`](http://api.jquery.com/removeAttr/)\n * - [`removeClass()`](http://api.jquery.com/removeClass/)\n * - [`removeData()`](http://api.jquery.com/removeData/)\n * - [`replaceWith()`](http://api.jquery.com/replaceWith/)\n * - [`text()`](http://api.jquery.com/text/)\n * - [`toggleClass()`](http://api.jquery.com/toggleClass/)\n * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers.\n * - [`unbind()`](http://api.jquery.com/unbind/) - Does not support namespaces or event object as parameter\n * - [`val()`](http://api.jquery.com/val/)\n * - [`wrap()`](http://api.jquery.com/wrap/)\n *\n * ## jQuery/jqLite Extras\n * Angular also provides the following additional methods and events to both jQuery and jqLite:\n *\n * ### Events\n * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event\n *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM\n *    element before it is removed.\n *\n * ### Methods\n * - `controller(name)` - retrieves the controller of the current element or its parent. By default\n *   retrieves controller associated with the `ngController` directive. If `name` is provided as\n *   camelCase directive name, then the controller for this directive will be retrieved (e.g.\n *   `'ngModel'`).\n * - `injector()` - retrieves the injector of the current element or its parent.\n * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current\n *   element or its parent. Requires {@link guide/production#disabling-debug-data Debug Data} to\n *   be enabled.\n * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the\n *   current element. This getter should be used only on elements that contain a directive which starts a new isolate\n *   scope. Calling `scope()` on this element always returns the original non-isolate scope.\n *   Requires {@link guide/production#disabling-debug-data Debug Data} to be enabled.\n * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top\n *   parent element is reached.\n *\n * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.\n * @returns {Object} jQuery object.\n */\n\nJQLite.expando = 'ng339';\n\nvar jqCache = JQLite.cache = {},\n    jqId = 1,\n    addEventListenerFn = function(element, type, fn) {\n      element.addEventListener(type, fn, false);\n    },\n    removeEventListenerFn = function(element, type, fn) {\n      element.removeEventListener(type, fn, false);\n    };\n\n/*\n * !!! This is an undocumented \"private\" function !!!\n */\nJQLite._data = function(node) {\n  //jQuery always returns an object on cache miss\n  return this.cache[node[this.expando]] || {};\n};\n\nfunction jqNextId() { return ++jqId; }\n\n\nvar SPECIAL_CHARS_REGEXP = /([\\:\\-\\_]+(.))/g;\nvar MOZ_HACK_REGEXP = /^moz([A-Z])/;\nvar MOUSE_EVENT_MAP= { mouseleave: \"mouseout\", mouseenter: \"mouseover\"};\nvar jqLiteMinErr = minErr('jqLite');\n\n/**\n * Converts snake_case to camelCase.\n * Also there is special case for Moz prefix starting with upper case letter.\n * @param name Name to normalize\n */\nfunction camelCase(name) {\n  return name.\n    replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    }).\n    replace(MOZ_HACK_REGEXP, 'Moz$1');\n}\n\nvar SINGLE_TAG_REGEXP = /^<([\\w-]+)\\s*\\/?>(?:<\\/\\1>|)$/;\nvar HTML_REGEXP = /<|&#?\\w+;/;\nvar TAG_NAME_REGEXP = /<([\\w:-]+)/;\nvar XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:-]+)[^>]*)\\/>/gi;\n\nvar wrapMap = {\n  'option': [1, '<select multiple=\"multiple\">', '</select>'],\n\n  'thead': [1, '<table>', '</table>'],\n  'col': [2, '<table><colgroup>', '</colgroup></table>'],\n  'tr': [2, '<table><tbody>', '</tbody></table>'],\n  'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],\n  '_default': [0, \"\", \"\"]\n};\n\nwrapMap.optgroup = wrapMap.option;\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\n\nfunction jqLiteIsTextNode(html) {\n  return !HTML_REGEXP.test(html);\n}\n\nfunction jqLiteAcceptsData(node) {\n  // The window object can accept data but has no nodeType\n  // Otherwise we are only interested in elements (1) and documents (9)\n  var nodeType = node.nodeType;\n  return nodeType === NODE_TYPE_ELEMENT || !nodeType || nodeType === NODE_TYPE_DOCUMENT;\n}\n\nfunction jqLiteHasData(node) {\n  for (var key in jqCache[node.ng339]) {\n    return true;\n  }\n  return false;\n}\n\nfunction jqLiteBuildFragment(html, context) {\n  var tmp, tag, wrap,\n      fragment = context.createDocumentFragment(),\n      nodes = [], i;\n\n  if (jqLiteIsTextNode(html)) {\n    // Convert non-html into a text node\n    nodes.push(context.createTextNode(html));\n  } else {\n    // Convert html into DOM nodes\n    tmp = tmp || fragment.appendChild(context.createElement(\"div\"));\n    tag = (TAG_NAME_REGEXP.exec(html) || [\"\", \"\"])[1].toLowerCase();\n    wrap = wrapMap[tag] || wrapMap._default;\n    tmp.innerHTML = wrap[1] + html.replace(XHTML_TAG_REGEXP, \"<$1></$2>\") + wrap[2];\n\n    // Descend through wrappers to the right content\n    i = wrap[0];\n    while (i--) {\n      tmp = tmp.lastChild;\n    }\n\n    nodes = concat(nodes, tmp.childNodes);\n\n    tmp = fragment.firstChild;\n    tmp.textContent = \"\";\n  }\n\n  // Remove wrapper from fragment\n  fragment.textContent = \"\";\n  fragment.innerHTML = \"\"; // Clear inner HTML\n  forEach(nodes, function(node) {\n    fragment.appendChild(node);\n  });\n\n  return fragment;\n}\n\nfunction jqLiteParseHTML(html, context) {\n  context = context || document;\n  var parsed;\n\n  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {\n    return [context.createElement(parsed[1])];\n  }\n\n  if ((parsed = jqLiteBuildFragment(html, context))) {\n    return parsed.childNodes;\n  }\n\n  return [];\n}\n\nfunction jqLiteWrapNode(node, wrapper) {\n  var parent = node.parentNode;\n\n  if (parent) {\n    parent.replaceChild(wrapper, node);\n  }\n\n  wrapper.appendChild(node);\n}\n\n\n// IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\nvar jqLiteContains = Node.prototype.contains || function(arg) {\n  // jshint bitwise: false\n  return !!(this.compareDocumentPosition(arg) & 16);\n  // jshint bitwise: true\n};\n\n/////////////////////////////////////////////\nfunction JQLite(element) {\n  if (element instanceof JQLite) {\n    return element;\n  }\n\n  var argIsString;\n\n  if (isString(element)) {\n    element = trim(element);\n    argIsString = true;\n  }\n  if (!(this instanceof JQLite)) {\n    if (argIsString && element.charAt(0) != '<') {\n      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');\n    }\n    return new JQLite(element);\n  }\n\n  if (argIsString) {\n    jqLiteAddNodes(this, jqLiteParseHTML(element));\n  } else {\n    jqLiteAddNodes(this, element);\n  }\n}\n\nfunction jqLiteClone(element) {\n  return element.cloneNode(true);\n}\n\nfunction jqLiteDealoc(element, onlyDescendants) {\n  if (!onlyDescendants) jqLiteRemoveData(element);\n\n  if (element.querySelectorAll) {\n    var descendants = element.querySelectorAll('*');\n    for (var i = 0, l = descendants.length; i < l; i++) {\n      jqLiteRemoveData(descendants[i]);\n    }\n  }\n}\n\nfunction jqLiteOff(element, type, fn, unsupported) {\n  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');\n\n  var expandoStore = jqLiteExpandoStore(element);\n  var events = expandoStore && expandoStore.events;\n  var handle = expandoStore && expandoStore.handle;\n\n  if (!handle) return; //no listeners registered\n\n  if (!type) {\n    for (type in events) {\n      if (type !== '$destroy') {\n        removeEventListenerFn(element, type, handle);\n      }\n      delete events[type];\n    }\n  } else {\n\n    var removeHandler = function(type) {\n      var listenerFns = events[type];\n      if (isDefined(fn)) {\n        arrayRemove(listenerFns || [], fn);\n      }\n      if (!(isDefined(fn) && listenerFns && listenerFns.length > 0)) {\n        removeEventListenerFn(element, type, handle);\n        delete events[type];\n      }\n    };\n\n    forEach(type.split(' '), function(type) {\n      removeHandler(type);\n      if (MOUSE_EVENT_MAP[type]) {\n        removeHandler(MOUSE_EVENT_MAP[type]);\n      }\n    });\n  }\n}\n\nfunction jqLiteRemoveData(element, name) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  if (expandoStore) {\n    if (name) {\n      delete expandoStore.data[name];\n      return;\n    }\n\n    if (expandoStore.handle) {\n      if (expandoStore.events.$destroy) {\n        expandoStore.handle({}, '$destroy');\n      }\n      jqLiteOff(element);\n    }\n    delete jqCache[expandoId];\n    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it\n  }\n}\n\n\nfunction jqLiteExpandoStore(element, createIfNecessary) {\n  var expandoId = element.ng339,\n      expandoStore = expandoId && jqCache[expandoId];\n\n  if (createIfNecessary && !expandoStore) {\n    element.ng339 = expandoId = jqNextId();\n    expandoStore = jqCache[expandoId] = {events: {}, data: {}, handle: undefined};\n  }\n\n  return expandoStore;\n}\n\n\nfunction jqLiteData(element, key, value) {\n  if (jqLiteAcceptsData(element)) {\n\n    var isSimpleSetter = isDefined(value);\n    var isSimpleGetter = !isSimpleSetter && key && !isObject(key);\n    var massGetter = !key;\n    var expandoStore = jqLiteExpandoStore(element, !isSimpleGetter);\n    var data = expandoStore && expandoStore.data;\n\n    if (isSimpleSetter) { // data('key', value)\n      data[key] = value;\n    } else {\n      if (massGetter) {  // data()\n        return data;\n      } else {\n        if (isSimpleGetter) { // data('key')\n          // don't force creation of expandoStore if it doesn't exist yet\n          return data && data[key];\n        } else { // mass-setter: data({key1: val1, key2: val2})\n          extend(data, key);\n        }\n      }\n    }\n  }\n}\n\nfunction jqLiteHasClass(element, selector) {\n  if (!element.getAttribute) return false;\n  return ((\" \" + (element.getAttribute('class') || '') + \" \").replace(/[\\n\\t]/g, \" \").\n      indexOf(\" \" + selector + \" \") > -1);\n}\n\nfunction jqLiteRemoveClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    forEach(cssClasses.split(' '), function(cssClass) {\n      element.setAttribute('class', trim(\n          (\" \" + (element.getAttribute('class') || '') + \" \")\n          .replace(/[\\n\\t]/g, \" \")\n          .replace(\" \" + trim(cssClass) + \" \", \" \"))\n      );\n    });\n  }\n}\n\nfunction jqLiteAddClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, \" \");\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      if (existingClasses.indexOf(' ' + cssClass + ' ') === -1) {\n        existingClasses += cssClass + ' ';\n      }\n    });\n\n    element.setAttribute('class', trim(existingClasses));\n  }\n}\n\n\nfunction jqLiteAddNodes(root, elements) {\n  // THIS CODE IS VERY HOT. Don't make changes without benchmarking.\n\n  if (elements) {\n\n    // if a Node (the most common case)\n    if (elements.nodeType) {\n      root[root.length++] = elements;\n    } else {\n      var length = elements.length;\n\n      // if an Array or NodeList and not a Window\n      if (typeof length === 'number' && elements.window !== elements) {\n        if (length) {\n          for (var i = 0; i < length; i++) {\n            root[root.length++] = elements[i];\n          }\n        }\n      } else {\n        root[root.length++] = elements;\n      }\n    }\n  }\n}\n\n\nfunction jqLiteController(element, name) {\n  return jqLiteInheritedData(element, '$' + (name || 'ngController') + 'Controller');\n}\n\nfunction jqLiteInheritedData(element, name, value) {\n  // if element is the document object work with the html element instead\n  // this makes $(document).scope() possible\n  if (element.nodeType == NODE_TYPE_DOCUMENT) {\n    element = element.documentElement;\n  }\n  var names = isArray(name) ? name : [name];\n\n  while (element) {\n    for (var i = 0, ii = names.length; i < ii; i++) {\n      if (isDefined(value = jqLite.data(element, names[i]))) return value;\n    }\n\n    // If dealing with a document fragment node with a host element, and no parent, use the host\n    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM\n    // to lookup parent controllers.\n    element = element.parentNode || (element.nodeType === NODE_TYPE_DOCUMENT_FRAGMENT && element.host);\n  }\n}\n\nfunction jqLiteEmpty(element) {\n  jqLiteDealoc(element, true);\n  while (element.firstChild) {\n    element.removeChild(element.firstChild);\n  }\n}\n\nfunction jqLiteRemove(element, keepData) {\n  if (!keepData) jqLiteDealoc(element);\n  var parent = element.parentNode;\n  if (parent) parent.removeChild(element);\n}\n\n\nfunction jqLiteDocumentLoaded(action, win) {\n  win = win || window;\n  if (win.document.readyState === 'complete') {\n    // Force the action to be run async for consistent behaviour\n    // from the action's point of view\n    // i.e. it will definitely not be in a $apply\n    win.setTimeout(action);\n  } else {\n    // No need to unbind this handler as load is only ever called once\n    jqLite(win).on('load', action);\n  }\n}\n\n//////////////////////////////////////////\n// Functions which are declared directly.\n//////////////////////////////////////////\nvar JQLitePrototype = JQLite.prototype = {\n  ready: function(fn) {\n    var fired = false;\n\n    function trigger() {\n      if (fired) return;\n      fired = true;\n      fn();\n    }\n\n    // check if document is already loaded\n    if (document.readyState === 'complete') {\n      setTimeout(trigger);\n    } else {\n      this.on('DOMContentLoaded', trigger); // works for modern browsers and IE9\n      // we can not use jqLite since we are not done loading and jQuery could be loaded later.\n      // jshint -W064\n      JQLite(window).on('load', trigger); // fallback to window.onload for others\n      // jshint +W064\n    }\n  },\n  toString: function() {\n    var value = [];\n    forEach(this, function(e) { value.push('' + e);});\n    return '[' + value.join(', ') + ']';\n  },\n\n  eq: function(index) {\n      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);\n  },\n\n  length: 0,\n  push: push,\n  sort: [].sort,\n  splice: [].splice\n};\n\n//////////////////////////////////////////\n// Functions iterating getter/setters.\n// these functions return self on setter and\n// value on get.\n//////////////////////////////////////////\nvar BOOLEAN_ATTR = {};\nforEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {\n  BOOLEAN_ATTR[lowercase(value)] = value;\n});\nvar BOOLEAN_ELEMENTS = {};\nforEach('input,select,option,textarea,button,form,details'.split(','), function(value) {\n  BOOLEAN_ELEMENTS[value] = true;\n});\nvar ALIASED_ATTR = {\n  'ngMinlength': 'minlength',\n  'ngMaxlength': 'maxlength',\n  'ngMin': 'min',\n  'ngMax': 'max',\n  'ngPattern': 'pattern'\n};\n\nfunction getBooleanAttrName(element, name) {\n  // check dom last since we will most likely fail on name\n  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];\n\n  // booleanAttr is here twice to minimize DOM access\n  return booleanAttr && BOOLEAN_ELEMENTS[nodeName_(element)] && booleanAttr;\n}\n\nfunction getAliasedAttrName(name) {\n  return ALIASED_ATTR[name];\n}\n\nforEach({\n  data: jqLiteData,\n  removeData: jqLiteRemoveData,\n  hasData: jqLiteHasData\n}, function(fn, name) {\n  JQLite[name] = fn;\n});\n\nforEach({\n  data: jqLiteData,\n  inheritedData: jqLiteInheritedData,\n\n  scope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);\n  },\n\n  isolateScope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');\n  },\n\n  controller: jqLiteController,\n\n  injector: function(element) {\n    return jqLiteInheritedData(element, '$injector');\n  },\n\n  removeAttr: function(element, name) {\n    element.removeAttribute(name);\n  },\n\n  hasClass: jqLiteHasClass,\n\n  css: function(element, name, value) {\n    name = camelCase(name);\n\n    if (isDefined(value)) {\n      element.style[name] = value;\n    } else {\n      return element.style[name];\n    }\n  },\n\n  attr: function(element, name, value) {\n    var nodeType = element.nodeType;\n    if (nodeType === NODE_TYPE_TEXT || nodeType === NODE_TYPE_ATTRIBUTE || nodeType === NODE_TYPE_COMMENT) {\n      return;\n    }\n    var lowercasedName = lowercase(name);\n    if (BOOLEAN_ATTR[lowercasedName]) {\n      if (isDefined(value)) {\n        if (!!value) {\n          element[name] = true;\n          element.setAttribute(name, lowercasedName);\n        } else {\n          element[name] = false;\n          element.removeAttribute(lowercasedName);\n        }\n      } else {\n        return (element[name] ||\n                 (element.attributes.getNamedItem(name) || noop).specified)\n               ? lowercasedName\n               : undefined;\n      }\n    } else if (isDefined(value)) {\n      element.setAttribute(name, value);\n    } else if (element.getAttribute) {\n      // the extra argument \"2\" is to get the right thing for a.href in IE, see jQuery code\n      // some elements (e.g. Document) don't have get attribute, so return undefined\n      var ret = element.getAttribute(name, 2);\n      // normalize non-existing attributes to undefined (as jQuery)\n      return ret === null ? undefined : ret;\n    }\n  },\n\n  prop: function(element, name, value) {\n    if (isDefined(value)) {\n      element[name] = value;\n    } else {\n      return element[name];\n    }\n  },\n\n  text: (function() {\n    getText.$dv = '';\n    return getText;\n\n    function getText(element, value) {\n      if (isUndefined(value)) {\n        var nodeType = element.nodeType;\n        return (nodeType === NODE_TYPE_ELEMENT || nodeType === NODE_TYPE_TEXT) ? element.textContent : '';\n      }\n      element.textContent = value;\n    }\n  })(),\n\n  val: function(element, value) {\n    if (isUndefined(value)) {\n      if (element.multiple && nodeName_(element) === 'select') {\n        var result = [];\n        forEach(element.options, function(option) {\n          if (option.selected) {\n            result.push(option.value || option.text);\n          }\n        });\n        return result.length === 0 ? null : result;\n      }\n      return element.value;\n    }\n    element.value = value;\n  },\n\n  html: function(element, value) {\n    if (isUndefined(value)) {\n      return element.innerHTML;\n    }\n    jqLiteDealoc(element, true);\n    element.innerHTML = value;\n  },\n\n  empty: jqLiteEmpty\n}, function(fn, name) {\n  /**\n   * Properties: writes return selection, reads return first value\n   */\n  JQLite.prototype[name] = function(arg1, arg2) {\n    var i, key;\n    var nodeCount = this.length;\n\n    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it\n    // in a way that survives minification.\n    // jqLiteEmpty takes no arguments but is a setter.\n    if (fn !== jqLiteEmpty &&\n        (isUndefined((fn.length == 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2))) {\n      if (isObject(arg1)) {\n\n        // we are a write, but the object properties are the key/values\n        for (i = 0; i < nodeCount; i++) {\n          if (fn === jqLiteData) {\n            // data() takes the whole object in jQuery\n            fn(this[i], arg1);\n          } else {\n            for (key in arg1) {\n              fn(this[i], key, arg1[key]);\n            }\n          }\n        }\n        // return self for chaining\n        return this;\n      } else {\n        // we are a read, so read the first child.\n        // TODO: do we still need this?\n        var value = fn.$dv;\n        // Only if we have $dv do we iterate over all, otherwise it is just the first element.\n        var jj = (isUndefined(value)) ? Math.min(nodeCount, 1) : nodeCount;\n        for (var j = 0; j < jj; j++) {\n          var nodeValue = fn(this[j], arg1, arg2);\n          value = value ? value + nodeValue : nodeValue;\n        }\n        return value;\n      }\n    } else {\n      // we are a write, so apply to all children\n      for (i = 0; i < nodeCount; i++) {\n        fn(this[i], arg1, arg2);\n      }\n      // return self for chaining\n      return this;\n    }\n  };\n});\n\nfunction createEventHandler(element, events) {\n  var eventHandler = function(event, type) {\n    // jQuery specific api\n    event.isDefaultPrevented = function() {\n      return event.defaultPrevented;\n    };\n\n    var eventFns = events[type || event.type];\n    var eventFnsLength = eventFns ? eventFns.length : 0;\n\n    if (!eventFnsLength) return;\n\n    if (isUndefined(event.immediatePropagationStopped)) {\n      var originalStopImmediatePropagation = event.stopImmediatePropagation;\n      event.stopImmediatePropagation = function() {\n        event.immediatePropagationStopped = true;\n\n        if (event.stopPropagation) {\n          event.stopPropagation();\n        }\n\n        if (originalStopImmediatePropagation) {\n          originalStopImmediatePropagation.call(event);\n        }\n      };\n    }\n\n    event.isImmediatePropagationStopped = function() {\n      return event.immediatePropagationStopped === true;\n    };\n\n    // Some events have special handlers that wrap the real handler\n    var handlerWrapper = eventFns.specialHandlerWrapper || defaultHandlerWrapper;\n\n    // Copy event handlers in case event handlers array is modified during execution.\n    if ((eventFnsLength > 1)) {\n      eventFns = shallowCopy(eventFns);\n    }\n\n    for (var i = 0; i < eventFnsLength; i++) {\n      if (!event.isImmediatePropagationStopped()) {\n        handlerWrapper(element, event, eventFns[i]);\n      }\n    }\n  };\n\n  // TODO: this is a hack for angularMocks/clearDataCache that makes it possible to deregister all\n  //       events on `element`\n  eventHandler.elem = element;\n  return eventHandler;\n}\n\nfunction defaultHandlerWrapper(element, event, handler) {\n  handler.call(element, event);\n}\n\nfunction specialMouseHandlerWrapper(target, event, handler) {\n  // Refer to jQuery's implementation of mouseenter & mouseleave\n  // Read about mouseenter and mouseleave:\n  // http://www.quirksmode.org/js/events_mouse.html#link8\n  var related = event.relatedTarget;\n  // For mousenter/leave call the handler if related is outside the target.\n  // NB: No relatedTarget if the mouse left/entered the browser window\n  if (!related || (related !== target && !jqLiteContains.call(target, related))) {\n    handler.call(target, event);\n  }\n}\n\n//////////////////////////////////////////\n// Functions iterating traversal.\n// These functions chain results into a single\n// selector.\n//////////////////////////////////////////\nforEach({\n  removeData: jqLiteRemoveData,\n\n  on: function jqLiteOn(element, type, fn, unsupported) {\n    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');\n\n    // Do not add event handlers to non-elements because they will not be cleaned up.\n    if (!jqLiteAcceptsData(element)) {\n      return;\n    }\n\n    var expandoStore = jqLiteExpandoStore(element, true);\n    var events = expandoStore.events;\n    var handle = expandoStore.handle;\n\n    if (!handle) {\n      handle = expandoStore.handle = createEventHandler(element, events);\n    }\n\n    // http://jsperf.com/string-indexof-vs-split\n    var types = type.indexOf(' ') >= 0 ? type.split(' ') : [type];\n    var i = types.length;\n\n    var addHandler = function(type, specialHandlerWrapper, noEventListener) {\n      var eventFns = events[type];\n\n      if (!eventFns) {\n        eventFns = events[type] = [];\n        eventFns.specialHandlerWrapper = specialHandlerWrapper;\n        if (type !== '$destroy' && !noEventListener) {\n          addEventListenerFn(element, type, handle);\n        }\n      }\n\n      eventFns.push(fn);\n    };\n\n    while (i--) {\n      type = types[i];\n      if (MOUSE_EVENT_MAP[type]) {\n        addHandler(MOUSE_EVENT_MAP[type], specialMouseHandlerWrapper);\n        addHandler(type, undefined, true);\n      } else {\n        addHandler(type);\n      }\n    }\n  },\n\n  off: jqLiteOff,\n\n  one: function(element, type, fn) {\n    element = jqLite(element);\n\n    //add the listener twice so that when it is called\n    //you can remove the original function and still be\n    //able to call element.off(ev, fn) normally\n    element.on(type, function onFn() {\n      element.off(type, fn);\n      element.off(type, onFn);\n    });\n    element.on(type, fn);\n  },\n\n  replaceWith: function(element, replaceNode) {\n    var index, parent = element.parentNode;\n    jqLiteDealoc(element);\n    forEach(new JQLite(replaceNode), function(node) {\n      if (index) {\n        parent.insertBefore(node, index.nextSibling);\n      } else {\n        parent.replaceChild(node, element);\n      }\n      index = node;\n    });\n  },\n\n  children: function(element) {\n    var children = [];\n    forEach(element.childNodes, function(element) {\n      if (element.nodeType === NODE_TYPE_ELEMENT) {\n        children.push(element);\n      }\n    });\n    return children;\n  },\n\n  contents: function(element) {\n    return element.contentDocument || element.childNodes || [];\n  },\n\n  append: function(element, node) {\n    var nodeType = element.nodeType;\n    if (nodeType !== NODE_TYPE_ELEMENT && nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT) return;\n\n    node = new JQLite(node);\n\n    for (var i = 0, ii = node.length; i < ii; i++) {\n      var child = node[i];\n      element.appendChild(child);\n    }\n  },\n\n  prepend: function(element, node) {\n    if (element.nodeType === NODE_TYPE_ELEMENT) {\n      var index = element.firstChild;\n      forEach(new JQLite(node), function(child) {\n        element.insertBefore(child, index);\n      });\n    }\n  },\n\n  wrap: function(element, wrapNode) {\n    jqLiteWrapNode(element, jqLite(wrapNode).eq(0).clone()[0]);\n  },\n\n  remove: jqLiteRemove,\n\n  detach: function(element) {\n    jqLiteRemove(element, true);\n  },\n\n  after: function(element, newElement) {\n    var index = element, parent = element.parentNode;\n    newElement = new JQLite(newElement);\n\n    for (var i = 0, ii = newElement.length; i < ii; i++) {\n      var node = newElement[i];\n      parent.insertBefore(node, index.nextSibling);\n      index = node;\n    }\n  },\n\n  addClass: jqLiteAddClass,\n  removeClass: jqLiteRemoveClass,\n\n  toggleClass: function(element, selector, condition) {\n    if (selector) {\n      forEach(selector.split(' '), function(className) {\n        var classCondition = condition;\n        if (isUndefined(classCondition)) {\n          classCondition = !jqLiteHasClass(element, className);\n        }\n        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);\n      });\n    }\n  },\n\n  parent: function(element) {\n    var parent = element.parentNode;\n    return parent && parent.nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT ? parent : null;\n  },\n\n  next: function(element) {\n    return element.nextElementSibling;\n  },\n\n  find: function(element, selector) {\n    if (element.getElementsByTagName) {\n      return element.getElementsByTagName(selector);\n    } else {\n      return [];\n    }\n  },\n\n  clone: jqLiteClone,\n\n  triggerHandler: function(element, event, extraParameters) {\n\n    var dummyEvent, eventFnsCopy, handlerArgs;\n    var eventName = event.type || event;\n    var expandoStore = jqLiteExpandoStore(element);\n    var events = expandoStore && expandoStore.events;\n    var eventFns = events && events[eventName];\n\n    if (eventFns) {\n      // Create a dummy event to pass to the handlers\n      dummyEvent = {\n        preventDefault: function() { this.defaultPrevented = true; },\n        isDefaultPrevented: function() { return this.defaultPrevented === true; },\n        stopImmediatePropagation: function() { this.immediatePropagationStopped = true; },\n        isImmediatePropagationStopped: function() { return this.immediatePropagationStopped === true; },\n        stopPropagation: noop,\n        type: eventName,\n        target: element\n      };\n\n      // If a custom event was provided then extend our dummy event with it\n      if (event.type) {\n        dummyEvent = extend(dummyEvent, event);\n      }\n\n      // Copy event handlers in case event handlers array is modified during execution.\n      eventFnsCopy = shallowCopy(eventFns);\n      handlerArgs = extraParameters ? 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See\n *     {@link angular.module}. The `ng` module must be explicitly added.\n * @param {boolean=} [strictDi=false] Whether the injector should be in strict mode, which\n *     disallows argument name annotation inference.\n * @returns {injector} Injector object. See {@link auto.$injector $injector}.\n *\n * @example\n * Typical usage\n * ```js\n *   // create an injector\n *   var $injector = angular.injector(['ng']);\n *\n *   // use the injector to kick off your application\n *   // use the type inference to auto inject arguments, or use implicit injection\n *   $injector.invoke(function($rootScope, $compile, $document) {\n *     $compile($document)($rootScope);\n *     $rootScope.$digest();\n *   });\n * ```\n *\n * Sometimes you want to get access to the injector of a currently running Angular app\n * from outside Angular. Perhaps, you want to inject and compile some markup after the\n * application has been bootstrapped. You can do this using the extra `injector()` added\n * to JQuery/jqLite elements. See {@link angular.element}.\n *\n * *This is fairly rare but could be the case if a third party library is injecting the\n * markup.*\n *\n * In the following example a new block of HTML containing a `ng-controller`\n * directive is added to the end of the document body by JQuery. We then compile and link\n * it into the current AngularJS scope.\n *\n * ```js\n * var $div = $('<div ng-controller=\"MyCtrl\">{{content.label}}</div>');\n * $(document.body).append($div);\n *\n * angular.element(document).injector().invoke(function($compile) {\n *   var scope = angular.element($div).scope();\n *   $compile($div)(scope);\n * });\n * ```\n */\n\n\n/**\n * @ngdoc module\n * @name auto\n * @description\n *\n * Implicit module which gets automatically added to each {@link auto.$injector $injector}.\n */\n\nvar FN_ARGS = /^[^\\(]*\\(\\s*([^\\)]*)\\)/m;\nvar FN_ARG_SPLIT = /,/;\nvar FN_ARG = /^\\s*(_?)(\\S+?)\\1\\s*$/;\nvar STRIP_COMMENTS = /((\\/\\/.*$)|(\\/\\*[\\s\\S]*?\\*\\/))/mg;\nvar $injectorMinErr = minErr('$injector');\n\nfunction anonFn(fn) {\n  // For anonymous functions, showing at the very least the function signature can help in\n  // debugging.\n  var fnText = fn.toString().replace(STRIP_COMMENTS, ''),\n      args = fnText.match(FN_ARGS);\n  if (args) {\n    return 'function(' + (args[1] || '').replace(/[\\s\\r\\n]+/, ' ') + ')';\n  }\n  return 'fn';\n}\n\nfunction annotate(fn, strictDi, name) {\n  var $inject,\n      fnText,\n      argDecl,\n      last;\n\n  if (typeof fn === 'function') {\n    if (!($inject = fn.$inject)) {\n      $inject = [];\n      if (fn.length) {\n        if (strictDi) {\n          if (!isString(name) || !name) {\n            name = fn.name || anonFn(fn);\n          }\n          throw $injectorMinErr('strictdi',\n            '{0} is not using explicit annotation and cannot be invoked in strict mode', name);\n        }\n        fnText = fn.toString().replace(STRIP_COMMENTS, '');\n        argDecl = fnText.match(FN_ARGS);\n        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg) {\n          arg.replace(FN_ARG, function(all, underscore, name) {\n            $inject.push(name);\n          });\n        });\n      }\n      fn.$inject = $inject;\n    }\n  } else if (isArray(fn)) {\n    last = fn.length - 1;\n    assertArgFn(fn[last], 'fn');\n    $inject = fn.slice(0, last);\n  } else {\n    assertArgFn(fn, 'fn', true);\n  }\n  return $inject;\n}\n\n///////////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $injector\n *\n * @description\n *\n * `$injector` is used to retrieve object instances as defined by\n * {@link auto.$provide provider}, instantiate types, invoke methods,\n * and load modules.\n *\n * The following always holds true:\n *\n * ```js\n *   var $injector = angular.injector();\n *   expect($injector.get('$injector')).toBe($injector);\n *   expect($injector.invoke(function($injector) {\n *     return $injector;\n *   })).toBe($injector);\n * ```\n *\n * # Injection Function Annotation\n *\n * JavaScript does not have annotations, and annotations are needed for dependency injection. The\n * following are all valid ways of annotating function with injection arguments and are equivalent.\n *\n * ```js\n *   // inferred (only works if code not minified/obfuscated)\n *   $injector.invoke(function(serviceA){});\n *\n *   // annotated\n *   function explicit(serviceA) {};\n *   explicit.$inject = ['serviceA'];\n *   $injector.invoke(explicit);\n *\n *   // inline\n *   $injector.invoke(['serviceA', function(serviceA){}]);\n * ```\n *\n * ## Inference\n *\n * In JavaScript calling `toString()` on a function returns the function definition. The definition\n * can then be parsed and the function arguments can be extracted. This method of discovering\n * annotations is disallowed when the injector is in strict mode.\n * *NOTE:* This does not work with minification, and obfuscation tools since these tools change the\n * argument names.\n *\n * ## `$inject` Annotation\n * By adding an `$inject` property onto a function the injection parameters can be specified.\n *\n * ## Inline\n * As an array of injection names, where the last item in the array is the function to call.\n */\n\n/**\n * @ngdoc method\n * @name $injector#get\n *\n * @description\n * Return an instance of the service.\n *\n * @param {string} name The name of the instance to retrieve.\n * @param {string=} caller An optional string to provide the origin of the function call for error messages.\n * @return {*} The instance.\n */\n\n/**\n * @ngdoc method\n * @name $injector#invoke\n *\n * @description\n * Invoke the method and supply the method arguments from the `$injector`.\n *\n * @param {Function|Array.<string|Function>} fn The injectable function to invoke. Function parameters are\n *   injected according to the {@link guide/di $inject Annotation} rules.\n * @param {Object=} self The `this` for the invoked method.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n *                         object first, before the `$injector` is consulted.\n * @returns {*} the value returned by the invoked `fn` function.\n */\n\n/**\n * @ngdoc method\n * @name $injector#has\n *\n * @description\n * Allows the user to query if the particular service exists.\n *\n * @param {string} name Name of the service to query.\n * @returns {boolean} `true` if injector has given service.\n */\n\n/**\n * @ngdoc method\n * @name $injector#instantiate\n * @description\n * Create a new instance of JS type. The method takes a constructor function, invokes the new\n * operator, and supplies all of the arguments to the constructor function as specified by the\n * constructor annotation.\n *\n * @param {Function} Type Annotated constructor function.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n * object first, before the `$injector` is consulted.\n * @returns {Object} new instance of `Type`.\n */\n\n/**\n * @ngdoc method\n * @name $injector#annotate\n *\n * @description\n * Returns an array of service names which the function is requesting for injection. This API is\n * used by the injector to determine which services need to be injected into the function when the\n * function is invoked. There are three ways in which the function can be annotated with the needed\n * dependencies.\n *\n * # Argument names\n *\n * The simplest form is to extract the dependencies from the arguments of the function. This is done\n * by converting the function into a string using `toString()` method and extracting the argument\n * names.\n * ```js\n *   // Given\n *   function MyController($scope, $route) {\n *     // ...\n *   }\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * You can disallow this method by using strict injection mode.\n *\n * This method does not work with code minification / obfuscation. For this reason the following\n * annotation strategies are supported.\n *\n * # The `$inject` property\n *\n * If a function has an `$inject` property and its value is an array of strings, then the strings\n * represent names of services to be injected into the function.\n * ```js\n *   // Given\n *   var MyController = function(obfuscatedScope, obfuscatedRoute) {\n *     // ...\n *   }\n *   // Define function dependencies\n *   MyController['$inject'] = ['$scope', '$route'];\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * # The array notation\n *\n * It is often desirable to inline Injected functions and that's when setting the `$inject` property\n * is very inconvenient. In these situations using the array notation to specify the dependencies in\n * a way that survives minification is a better choice:\n *\n * ```js\n *   // We wish to write this (not minification / obfuscation safe)\n *   injector.invoke(function($compile, $rootScope) {\n *     // ...\n *   });\n *\n *   // We are forced to write break inlining\n *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {\n *     // ...\n *   };\n *   tmpFn.$inject = ['$compile', '$rootScope'];\n *   injector.invoke(tmpFn);\n *\n *   // To better support inline function the inline annotation is supported\n *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {\n *     // ...\n *   }]);\n *\n *   // Therefore\n *   expect(injector.annotate(\n *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])\n *    ).toEqual(['$compile', '$rootScope']);\n * ```\n *\n * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to\n * be retrieved as described above.\n *\n * @param {boolean=} [strictDi=false] Disallow argument name annotation inference.\n *\n * @returns {Array.<string>} The names of the services which the function requires.\n */\n\n\n\n\n/**\n * @ngdoc service\n * @name $provide\n *\n * @description\n *\n * The {@link auto.$provide $provide} service has a number of methods for registering components\n * with the {@link auto.$injector $injector}. Many of these functions are also exposed on\n * {@link angular.Module}.\n *\n * An Angular **service** is a singleton object created by a **service factory**.  These **service\n * factories** are functions which, in turn, are created by a **service provider**.\n * The **service providers** are constructor functions. When instantiated they must contain a\n * property called `$get`, which holds the **service factory** function.\n *\n * When you request a service, the {@link auto.$injector $injector} is responsible for finding the\n * correct **service provider**, instantiating it and then calling its `$get` **service factory**\n * function to get the instance of the **service**.\n *\n * Often services have no configuration options and there is no need to add methods to the service\n * provider.  The provider will be no more than a constructor function with a `$get` property. For\n * these cases the {@link auto.$provide $provide} service has additional helper methods to register\n * services without specifying a provider.\n *\n * * {@link auto.$provide#provider provider(provider)} - registers a **service provider** with the\n *     {@link auto.$injector $injector}\n * * {@link auto.$provide#constant constant(obj)} - registers a value/object that can be accessed by\n *     providers and services.\n * * {@link auto.$provide#value value(obj)} - registers a value/object that can only be accessed by\n *     services, not providers.\n * * {@link auto.$provide#factory factory(fn)} - registers a service **factory function**, `fn`,\n *     that will be wrapped in a **service provider** object, whose `$get` property will contain the\n *     given factory function.\n * * {@link auto.$provide#service service(class)} - registers a **constructor function**, `class`\n *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate\n *      a new object using the given constructor function.\n *\n * See the individual methods for more information and examples.\n */\n\n/**\n * @ngdoc method\n * @name $provide#provider\n * @description\n *\n * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions\n * are constructor functions, whose instances are responsible for \"providing\" a factory for a\n * service.\n *\n * Service provider names start with the name of the service they provide followed by `Provider`.\n * For example, the {@link ng.$log $log} service has a provider called\n * {@link ng.$logProvider $logProvider}.\n *\n * Service provider objects can have additional methods which allow configuration of the provider\n * and its service. Importantly, you can configure what kind of service is created by the `$get`\n * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a\n * method {@link ng.$logProvider#debugEnabled debugEnabled}\n * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the\n * console or not.\n *\n * @param {string} name The name of the instance. NOTE: the provider will be available under `name +\n                        'Provider'` key.\n * @param {(Object|function())} provider If the provider is:\n *\n *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using\n *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.\n *   - `Constructor`: a new instance of the provider will be created using\n *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.\n *\n * @returns {Object} registered provider instance\n\n * @example\n *\n * The following example shows how to create a simple event tracking service and register it using\n * {@link auto.$provide#provider $provide.provider()}.\n *\n * ```js\n *  // Define the eventTracker provider\n *  function EventTrackerProvider() {\n *    var trackingUrl = '/track';\n *\n *    // A provider method for configuring where the tracked events should been saved\n *    this.setTrackingUrl = function(url) {\n *      trackingUrl = url;\n *    };\n *\n *    // The service factory function\n *    this.$get = ['$http', function($http) {\n *      var trackedEvents = {};\n *      return {\n *        // Call this to track an event\n *        event: function(event) {\n *          var count = trackedEvents[event] || 0;\n *          count += 1;\n *          trackedEvents[event] = count;\n *          return count;\n *        },\n *        // Call this to save the tracked events to the trackingUrl\n *        save: function() {\n *          $http.post(trackingUrl, trackedEvents);\n *        }\n *      };\n *    }];\n *  }\n *\n *  describe('eventTracker', function() {\n *    var postSpy;\n *\n *    beforeEach(module(function($provide) {\n *      // Register the eventTracker provider\n *      $provide.provider('eventTracker', EventTrackerProvider);\n *    }));\n *\n *    beforeEach(module(function(eventTrackerProvider) {\n *      // Configure eventTracker provider\n *      eventTrackerProvider.setTrackingUrl('/custom-track');\n *    }));\n *\n *    it('tracks events', inject(function(eventTracker) {\n *      expect(eventTracker.event('login')).toEqual(1);\n *      expect(eventTracker.event('login')).toEqual(2);\n *    }));\n *\n *    it('saves to the tracking url', inject(function(eventTracker, $http) {\n *      postSpy = spyOn($http, 'post');\n *      eventTracker.event('login');\n *      eventTracker.save();\n *      expect(postSpy).toHaveBeenCalled();\n *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');\n *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');\n *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });\n *    }));\n *  });\n * ```\n */\n\n/**\n * @ngdoc method\n * @name $provide#factory\n * @description\n *\n * Register a **service factory**, which will be called to return the service instance.\n * This is short for registering a service where its provider consists of only a `$get` property,\n * which is the given service factory function.\n * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to\n * configure your service in a provider.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} $getFn The injectable $getFn for the instance creation.\n *                      Internally this is a short hand for `$provide.provider(name, {$get: $getFn})`.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service\n * ```js\n *   $provide.factory('ping', ['$http', function($http) {\n *     return function ping() {\n *       return $http.send('/ping');\n *     };\n *   }]);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#service\n * @description\n *\n * Register a **service constructor**, which will be invoked with `new` to create the service\n * instance.\n * This is short for registering a service where its provider's `$get` property is a factory\n * function that returns an instance instantiated by the injector from the service constructor\n * function.\n *\n * Internally it looks a bit like this:\n *\n * ```\n * {\n *   $get: function() {\n *     return $injector.instantiate(constructor);\n *   }\n * }\n * ```\n *\n *\n * You should use {@link auto.$provide#service $provide.service(class)} if you define your service\n * as a type/class.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} constructor An injectable class (constructor function)\n *     that will be instantiated.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service using\n * {@link auto.$provide#service $provide.service(class)}.\n * ```js\n *   var Ping = function($http) {\n *     this.$http = $http;\n *   };\n *\n *   Ping.$inject = ['$http'];\n *\n *   Ping.prototype.send = function() {\n *     return this.$http.get('/ping');\n *   };\n *   $provide.service('ping', Ping);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping.send();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#value\n * @description\n *\n * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a\n * number, an array, an object or a function. This is short for registering a service where its\n * provider's `$get` property is a factory function that takes no arguments and returns the **value\n * service**. That also means it is not possible to inject other services into a value service.\n *\n * Value services are similar to constant services, except that they cannot be injected into a\n * module configuration function (see {@link angular.Module#config}) but they can be overridden by\n * an Angular {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the instance.\n * @param {*} value The value.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here are some examples of creating value services.\n * ```js\n *   $provide.value('ADMIN_USER', 'admin');\n *\n *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });\n *\n *   $provide.value('halfOf', function(value) {\n *     return value / 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#constant\n * @description\n *\n * Register a **constant service** with the {@link auto.$injector $injector}, such as a string,\n * a number, an array, an object or a function. Like the {@link auto.$provide#value value}, it is not\n * possible to inject other services into a constant.\n *\n * But unlike {@link auto.$provide#value value}, a constant can be\n * injected into a module configuration function (see {@link angular.Module#config}) and it cannot\n * be overridden by an Angular {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the constant.\n * @param {*} value The constant value.\n * @returns {Object} registered instance\n *\n * @example\n * Here a some examples of creating constants:\n * ```js\n *   $provide.constant('SHARD_HEIGHT', 306);\n *\n *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);\n *\n *   $provide.constant('double', function(value) {\n *     return value * 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#decorator\n * @description\n *\n * Register a **service decorator** with the {@link auto.$injector $injector}. A service decorator\n * intercepts the creation of a service, allowing it to override or modify the behavior of the\n * service. The object returned by the decorator may be the original service, or a new service\n * object which replaces or wraps and delegates to the original service.\n *\n * @param {string} name The name of the service to decorate.\n * @param {Function|Array.<string|Function>} decorator This function will be invoked when the service needs to be\n *    instantiated and should return the decorated service instance. The function is called using\n *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.\n *    Local injection arguments:\n *\n *    * `$delegate` - The original service instance, which can be monkey patched, configured,\n *      decorated or delegated to.\n *\n * @example\n * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting\n * calls to {@link ng.$log#error $log.warn()}.\n * ```js\n *   $provide.decorator('$log', ['$delegate', function($delegate) {\n *     $delegate.warn = $delegate.error;\n *     return $delegate;\n *   }]);\n * ```\n */\n\n\nfunction createInjector(modulesToLoad, strictDi) {\n  strictDi = (strictDi === true);\n  var INSTANTIATING = {},\n      providerSuffix = 'Provider',\n      path = [],\n      loadedModules = new HashMap([], true),\n      providerCache = {\n        $provide: {\n            provider: supportObject(provider),\n            factory: supportObject(factory),\n            service: supportObject(service),\n            value: supportObject(value),\n            constant: supportObject(constant),\n            decorator: decorator\n          }\n      },\n      providerInjector = (providerCache.$injector =\n          createInternalInjector(providerCache, function(serviceName, caller) {\n            if (angular.isString(caller)) {\n              path.push(caller);\n            }\n            throw $injectorMinErr('unpr', \"Unknown provider: {0}\", path.join(' <- '));\n          })),\n      instanceCache = {},\n      instanceInjector = (instanceCache.$injector =\n          createInternalInjector(instanceCache, function(serviceName, caller) {\n            var provider = providerInjector.get(serviceName + providerSuffix, caller);\n            return instanceInjector.invoke(provider.$get, provider, undefined, serviceName);\n          }));\n\n\n  forEach(loadModules(modulesToLoad), function(fn) { if (fn) instanceInjector.invoke(fn); });\n\n  return instanceInjector;\n\n  ////////////////////////////////////\n  // $provider\n  ////////////////////////////////////\n\n  function supportObject(delegate) {\n    return function(key, value) {\n      if (isObject(key)) {\n        forEach(key, reverseParams(delegate));\n      } else {\n        return delegate(key, value);\n      }\n    };\n  }\n\n  function provider(name, provider_) {\n    assertNotHasOwnProperty(name, 'service');\n    if (isFunction(provider_) || isArray(provider_)) {\n      provider_ = providerInjector.instantiate(provider_);\n    }\n    if (!provider_.$get) {\n      throw $injectorMinErr('pget', \"Provider '{0}' must define $get factory method.\", name);\n    }\n    return providerCache[name + providerSuffix] = provider_;\n  }\n\n  function enforceReturnValue(name, factory) {\n    return function enforcedReturnValue() {\n      var result = instanceInjector.invoke(factory, this);\n      if (isUndefined(result)) {\n        throw $injectorMinErr('undef', \"Provider '{0}' must return a value from $get factory method.\", name);\n      }\n      return result;\n    };\n  }\n\n  function factory(name, factoryFn, enforce) {\n    return provider(name, {\n      $get: enforce !== false ? enforceReturnValue(name, factoryFn) : factoryFn\n    });\n  }\n\n  function service(name, constructor) {\n    return factory(name, ['$injector', function($injector) {\n      return $injector.instantiate(constructor);\n    }]);\n  }\n\n  function value(name, val) { return factory(name, valueFn(val), false); }\n\n  function constant(name, value) {\n    assertNotHasOwnProperty(name, 'constant');\n    providerCache[name] = value;\n    instanceCache[name] = value;\n  }\n\n  function decorator(serviceName, decorFn) {\n    var origProvider = providerInjector.get(serviceName + providerSuffix),\n        orig$get = origProvider.$get;\n\n    origProvider.$get = function() {\n      var origInstance = instanceInjector.invoke(orig$get, origProvider);\n      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});\n    };\n  }\n\n  ////////////////////////////////////\n  // Module Loading\n  ////////////////////////////////////\n  function loadModules(modulesToLoad) {\n    assertArg(isUndefined(modulesToLoad) || isArray(modulesToLoad), 'modulesToLoad', 'not an array');\n    var runBlocks = [], moduleFn;\n    forEach(modulesToLoad, function(module) {\n      if (loadedModules.get(module)) return;\n      loadedModules.put(module, true);\n\n      function runInvokeQueue(queue) {\n        var i, ii;\n        for (i = 0, ii = queue.length; i < ii; i++) {\n          var invokeArgs = queue[i],\n              provider = providerInjector.get(invokeArgs[0]);\n\n          provider[invokeArgs[1]].apply(provider, invokeArgs[2]);\n        }\n      }\n\n      try {\n        if (isString(module)) {\n          moduleFn = angularModule(module);\n          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);\n          runInvokeQueue(moduleFn._invokeQueue);\n          runInvokeQueue(moduleFn._configBlocks);\n        } else if (isFunction(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else if (isArray(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else {\n          assertArgFn(module, 'module');\n        }\n      } catch (e) {\n        if (isArray(module)) {\n          module = module[module.length - 1];\n        }\n        if (e.message && e.stack && e.stack.indexOf(e.message) == -1) {\n          // Safari & FF's stack traces don't contain error.message content\n          // unlike those of Chrome and IE\n          // So if stack doesn't contain message, we create a new string that contains both.\n          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.\n          /* jshint -W022 */\n          e = e.message + '\\n' + e.stack;\n        }\n        throw $injectorMinErr('modulerr', \"Failed to instantiate module {0} due to:\\n{1}\",\n                  module, e.stack || e.message || e);\n      }\n    });\n    return runBlocks;\n  }\n\n  ////////////////////////////////////\n  // internal Injector\n  ////////////////////////////////////\n\n  function createInternalInjector(cache, factory) {\n\n    function getService(serviceName, caller) {\n      if (cache.hasOwnProperty(serviceName)) {\n        if (cache[serviceName] === INSTANTIATING) {\n          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',\n                    serviceName + ' <- ' + path.join(' <- '));\n        }\n        return cache[serviceName];\n      } else {\n        try {\n          path.unshift(serviceName);\n          cache[serviceName] = INSTANTIATING;\n          return cache[serviceName] = factory(serviceName, caller);\n        } catch (err) {\n          if (cache[serviceName] === INSTANTIATING) {\n            delete cache[serviceName];\n          }\n          throw err;\n        } finally {\n          path.shift();\n        }\n      }\n    }\n\n    function invoke(fn, self, locals, serviceName) {\n      if (typeof locals === 'string') {\n        serviceName = locals;\n        locals = null;\n      }\n\n      var args = [],\n          $inject = createInjector.$$annotate(fn, strictDi, serviceName),\n          length, i,\n          key;\n\n      for (i = 0, length = $inject.length; i < length; i++) {\n        key = $inject[i];\n        if (typeof key !== 'string') {\n          throw $injectorMinErr('itkn',\n                  'Incorrect injection token! Expected service name as string, got {0}', key);\n        }\n        args.push(\n          locals && locals.hasOwnProperty(key)\n          ? locals[key]\n          : getService(key, serviceName)\n        );\n      }\n      if (isArray(fn)) {\n        fn = fn[length];\n      }\n\n      // http://jsperf.com/angularjs-invoke-apply-vs-switch\n      // #5388\n      return fn.apply(self, args);\n    }\n\n    function instantiate(Type, locals, serviceName) {\n      // Check if Type is annotated and use just the given function at n-1 as parameter\n      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);\n      // Object creation: http://jsperf.com/create-constructor/2\n      var instance = Object.create((isArray(Type) ? Type[Type.length - 1] : Type).prototype || null);\n      var returnedValue = invoke(Type, instance, locals, serviceName);\n\n      return isObject(returnedValue) || isFunction(returnedValue) ? returnedValue : instance;\n    }\n\n    return {\n      invoke: invoke,\n      instantiate: instantiate,\n      get: getService,\n      annotate: createInjector.$$annotate,\n      has: function(name) {\n        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);\n      }\n    };\n  }\n}\n\ncreateInjector.$$annotate = annotate;\n\n/**\n * @ngdoc provider\n * @name $anchorScrollProvider\n *\n * @description\n * Use `$anchorScrollProvider` to disable automatic scrolling whenever\n * {@link ng.$location#hash $location.hash()} changes.\n */\nfunction $AnchorScrollProvider() {\n\n  var autoScrollingEnabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $anchorScrollProvider#disableAutoScrolling\n   *\n   * @description\n   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to\n   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />\n   * Use this method to disable automatic scrolling.\n   *\n   * If automatic scrolling is disabled, one must explicitly call\n   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the\n   * current hash.\n   */\n  this.disableAutoScrolling = function() {\n    autoScrollingEnabled = false;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $anchorScroll\n   * @kind function\n   * @requires $window\n   * @requires $location\n   * @requires $rootScope\n   *\n   * @description\n   * When called, it scrolls to the element related to the specified `hash` or (if omitted) to the\n   * current value of {@link ng.$location#hash $location.hash()}, according to the rules specified\n   * in the\n   * [HTML5 spec](http://www.w3.org/html/wg/drafts/html/master/browsers.html#an-indicated-part-of-the-document).\n   *\n   * It also watches the {@link ng.$location#hash $location.hash()} and automatically scrolls to\n   * match any anchor whenever it changes. This can be disabled by calling\n   * {@link ng.$anchorScrollProvider#disableAutoScrolling $anchorScrollProvider.disableAutoScrolling()}.\n   *\n   * Additionally, you can use its {@link ng.$anchorScroll#yOffset yOffset} property to specify a\n   * vertical scroll-offset (either fixed or dynamic).\n   *\n   * @param {string=} hash The hash specifying the element to scroll to. If omitted, the value of\n   *                       {@link ng.$location#hash $location.hash()} will be used.\n   *\n   * @property {(number|function|jqLite)} yOffset\n   * If set, specifies a vertical scroll-offset. This is often useful when there are fixed\n   * positioned elements at the top of the page, such as navbars, headers etc.\n   *\n   * `yOffset` can be specified in various ways:\n   * - **number**: A fixed number of pixels to be used as offset.<br /><br />\n   * - **function**: A getter function called everytime `$anchorScroll()` is executed. Must return\n   *   a number representing the offset (in pixels).<br /><br />\n   * - **jqLite**: A jqLite/jQuery element to be used for specifying the offset. The distance from\n   *   the top of the page to the element's bottom will be used as offset.<br />\n   *   **Note**: The element will be taken into account only as long as its `position` is set to\n   *   `fixed`. This option is useful, when dealing with responsive navbars/headers that adjust\n   *   their height and/or positioning according to the viewport's size.\n   *\n   * <br />\n   * <div class=\"alert alert-warning\">\n   * In order for `yOffset` to work properly, scrolling should take place on the document's root and\n   * not some child element.\n   * </div>\n   *\n   * @example\n     <example module=\"anchorScrollExample\">\n       <file name=\"index.html\">\n         <div id=\"scrollArea\" ng-controller=\"ScrollController\">\n           <a ng-click=\"gotoBottom()\">Go to bottom</a>\n           <a id=\"bottom\"></a> You're at the bottom!\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollExample', [])\n           .controller('ScrollController', ['$scope', '$location', '$anchorScroll',\n             function ($scope, $location, $anchorScroll) {\n               $scope.gotoBottom = function() {\n                 // set the location.hash to the id of\n                 // the element you wish to scroll to.\n                 $location.hash('bottom');\n\n                 // call $anchorScroll()\n                 $anchorScroll();\n               };\n             }]);\n       </file>\n       <file name=\"style.css\">\n         #scrollArea {\n           height: 280px;\n           overflow: auto;\n         }\n\n         #bottom {\n           display: block;\n           margin-top: 2000px;\n         }\n       </file>\n     </example>\n   *\n   * <hr />\n   * The example below illustrates the use of a vertical scroll-offset (specified as a fixed value).\n   * See {@link ng.$anchorScroll#yOffset $anchorScroll.yOffset} for more details.\n   *\n   * @example\n     <example module=\"anchorScrollOffsetExample\">\n       <file name=\"index.html\">\n         <div class=\"fixed-header\" ng-controller=\"headerCtrl\">\n           <a href=\"\" ng-click=\"gotoAnchor(x)\" ng-repeat=\"x in [1,2,3,4,5]\">\n             Go to anchor {{x}}\n           </a>\n         </div>\n         <div id=\"anchor{{x}}\" class=\"anchor\" ng-repeat=\"x in [1,2,3,4,5]\">\n           Anchor {{x}} of 5\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollOffsetExample', [])\n           .run(['$anchorScroll', function($anchorScroll) {\n             $anchorScroll.yOffset = 50;   // always scroll by 50 extra pixels\n           }])\n           .controller('headerCtrl', ['$anchorScroll', '$location', '$scope',\n             function ($anchorScroll, $location, $scope) {\n               $scope.gotoAnchor = function(x) {\n                 var newHash = 'anchor' + x;\n                 if ($location.hash() !== newHash) {\n                   // set the $location.hash to `newHash` and\n                   // $anchorScroll will automatically scroll to it\n                   $location.hash('anchor' + x);\n                 } else {\n                   // call $anchorScroll() explicitly,\n                   // since $location.hash hasn't changed\n                   $anchorScroll();\n                 }\n               };\n             }\n           ]);\n       </file>\n       <file name=\"style.css\">\n         body {\n           padding-top: 50px;\n         }\n\n         .anchor {\n           border: 2px dashed DarkOrchid;\n           padding: 10px 10px 200px 10px;\n         }\n\n         .fixed-header {\n           background-color: rgba(0, 0, 0, 0.2);\n           height: 50px;\n           position: fixed;\n           top: 0; left: 0; right: 0;\n         }\n\n         .fixed-header > a {\n           display: inline-block;\n           margin: 5px 15px;\n         }\n       </file>\n     </example>\n   */\n  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {\n    var document = $window.document;\n\n    // Helper function to get first anchor from a NodeList\n    // (using `Array#some()` instead of `angular#forEach()` since it's more performant\n    //  and working in all supported browsers.)\n    function getFirstAnchor(list) {\n      var result = null;\n      Array.prototype.some.call(list, function(element) {\n        if (nodeName_(element) === 'a') {\n          result = element;\n          return true;\n        }\n      });\n      return result;\n    }\n\n    function getYOffset() {\n\n      var offset = scroll.yOffset;\n\n      if (isFunction(offset)) {\n        offset = offset();\n      } else if (isElement(offset)) {\n        var elem = offset[0];\n        var style = $window.getComputedStyle(elem);\n        if (style.position !== 'fixed') {\n          offset = 0;\n        } else {\n          offset = elem.getBoundingClientRect().bottom;\n        }\n      } else if (!isNumber(offset)) {\n        offset = 0;\n      }\n\n      return offset;\n    }\n\n    function scrollTo(elem) {\n      if (elem) {\n        elem.scrollIntoView();\n\n        var offset = getYOffset();\n\n        if (offset) {\n          // `offset` is the number of pixels we should scroll UP in order to align `elem` properly.\n          // This is true ONLY if the call to `elem.scrollIntoView()` initially aligns `elem` at the\n          // top of the viewport.\n          //\n          // IF the number of pixels from the top of `elem` to the end of the page's content is less\n          // than the height of the viewport, then `elem.scrollIntoView()` will align the `elem` some\n          // way down the page.\n          //\n          // This is often the case for elements near the bottom of the page.\n          //\n          // In such cases we do not need to scroll the whole `offset` up, just the difference between\n          // the top of the element and the offset, which is enough to align the top of `elem` at the\n          // desired position.\n          var elemTop = elem.getBoundingClientRect().top;\n          $window.scrollBy(0, elemTop - offset);\n        }\n      } else {\n        $window.scrollTo(0, 0);\n      }\n    }\n\n    function scroll(hash) {\n      hash = isString(hash) ? hash : $location.hash();\n      var elm;\n\n      // empty hash, scroll to the top of the page\n      if (!hash) scrollTo(null);\n\n      // element with given id\n      else if ((elm = document.getElementById(hash))) scrollTo(elm);\n\n      // first anchor with given name :-D\n      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) scrollTo(elm);\n\n      // no element and hash == 'top', scroll to the top of the page\n      else if (hash === 'top') scrollTo(null);\n    }\n\n    // does not scroll when user clicks on anchor link that is currently on\n    // (no url change, no $location.hash() change), browser native does scroll\n    if (autoScrollingEnabled) {\n      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},\n        function autoScrollWatchAction(newVal, oldVal) {\n          // skip the initial scroll if $location.hash is empty\n          if (newVal === oldVal && newVal === '') return;\n\n          jqLiteDocumentLoaded(function() {\n            $rootScope.$evalAsync(scroll);\n          });\n        });\n    }\n\n    return scroll;\n  }];\n}\n\nvar $animateMinErr = minErr('$animate');\nvar ELEMENT_NODE = 1;\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction extractElementNode(element) {\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction splitClasses(classes) {\n  if (isString(classes)) {\n    classes = classes.split(' ');\n  }\n\n  // Use createMap() to prevent class assumptions involving property names in\n  // Object.prototype\n  var obj = createMap();\n  forEach(classes, function(klass) {\n    // sometimes the split leaves empty string values\n    // incase extra spaces were applied to the options\n    if (klass.length) {\n      obj[klass] = true;\n    }\n  });\n  return obj;\n}\n\n// if any other type of options value besides an Object value is\n// passed into the $animate.method() animation then this helper code\n// will be run which will ignore it. While this patch is not the\n// greatest solution to this, a lot of existing plugins depend on\n// $animate to either call the callback (< 1.2) or return a promise\n// that can be changed. This helper function ensures that the options\n// are wiped clean incase a callback function is provided.\nfunction prepareAnimateOptions(options) {\n  return isObject(options)\n      ? options\n      : {};\n}\n\nvar $$CoreAnimateJsProvider = function() {\n  this.$get = function() {};\n};\n\n// this is prefixed with Core since it conflicts with\n// the animateQueueProvider defined in ngAnimate/animateQueue.js\nvar $$CoreAnimateQueueProvider = function() {\n  var postDigestQueue = new HashMap();\n  var postDigestElements = [];\n\n  this.$get = ['$$AnimateRunner', '$rootScope',\n       function($$AnimateRunner,   $rootScope) {\n    return {\n      enabled: noop,\n      on: noop,\n      off: noop,\n      pin: noop,\n\n      push: function(element, event, options, domOperation) {\n        domOperation        && domOperation();\n\n        options = options || {};\n        options.from        && element.css(options.from);\n        options.to          && element.css(options.to);\n\n        if (options.addClass || options.removeClass) {\n          addRemoveClassesPostDigest(element, options.addClass, options.removeClass);\n        }\n\n        var runner = new $$AnimateRunner(); // jshint ignore:line\n\n        // since there are no animations to run the runner needs to be\n        // notified that the animation call is complete.\n        runner.complete();\n        return runner;\n      }\n    };\n\n\n    function updateData(data, classes, value) {\n      var changed = false;\n      if (classes) {\n        classes = isString(classes) ? classes.split(' ') :\n                  isArray(classes) ? classes : [];\n        forEach(classes, function(className) {\n          if (className) {\n            changed = true;\n            data[className] = value;\n          }\n        });\n      }\n      return changed;\n    }\n\n    function handleCSSClassChanges() {\n      forEach(postDigestElements, function(element) {\n        var data = postDigestQueue.get(element);\n        if (data) {\n          var existing = splitClasses(element.attr('class'));\n          var toAdd = '';\n          var toRemove = '';\n          forEach(data, function(status, className) {\n            var hasClass = !!existing[className];\n            if (status !== hasClass) {\n              if (status) {\n                toAdd += (toAdd.length ? ' ' : '') + className;\n              } else {\n                toRemove += (toRemove.length ? ' ' : '') + className;\n              }\n            }\n          });\n\n          forEach(element, function(elm) {\n            toAdd    && jqLiteAddClass(elm, toAdd);\n            toRemove && jqLiteRemoveClass(elm, toRemove);\n          });\n          postDigestQueue.remove(element);\n        }\n      });\n      postDigestElements.length = 0;\n    }\n\n\n    function addRemoveClassesPostDigest(element, add, remove) {\n      var data = postDigestQueue.get(element) || {};\n\n      var classesAdded = updateData(data, add, true);\n      var classesRemoved = updateData(data, remove, false);\n\n      if (classesAdded || classesRemoved) {\n\n        postDigestQueue.put(element, data);\n        postDigestElements.push(element);\n\n        if (postDigestElements.length === 1) {\n          $rootScope.$$postDigest(handleCSSClassChanges);\n        }\n      }\n    }\n  }];\n};\n\n/**\n * @ngdoc provider\n * @name $animateProvider\n *\n * @description\n * Default implementation of $animate that doesn't perform any animations, instead just\n * synchronously performs DOM updates and resolves the returned runner promise.\n *\n * In order to enable animations the `ngAnimate` module has to be loaded.\n *\n * To see the functional implementation check out `src/ngAnimate/animate.js`.\n */\nvar $AnimateProvider = ['$provide', function($provide) {\n  var provider = this;\n\n  this.$$registeredAnimations = Object.create(null);\n\n   /**\n   * @ngdoc method\n   * @name $animateProvider#register\n   *\n   * @description\n   * Registers a new injectable animation factory function. The factory function produces the\n   * animation object which contains callback functions for each event that is expected to be\n   * animated.\n   *\n   *   * `eventFn`: `function(element, ... , doneFunction, options)`\n   *   The element to animate, the `doneFunction` and the options fed into the animation. Depending\n   *   on the type of animation additional arguments will be injected into the animation function. The\n   *   list below explains the function signatures for the different animation methods:\n   *\n   *   - setClass: function(element, addedClasses, removedClasses, doneFunction, options)\n   *   - addClass: function(element, addedClasses, doneFunction, options)\n   *   - removeClass: function(element, removedClasses, doneFunction, options)\n   *   - enter, leave, move: function(element, doneFunction, options)\n   *   - animate: function(element, fromStyles, toStyles, doneFunction, options)\n   *\n   *   Make sure to trigger the `doneFunction` once the animation is fully complete.\n   *\n   * ```js\n   *   return {\n   *     //enter, leave, move signature\n   *     eventFn : function(element, done, options) {\n   *       //code to run the animation\n   *       //once complete, then run done()\n   *       return function endFunction(wasCancelled) {\n   *         //code to cancel the animation\n   *       }\n   *     }\n   *   }\n   * ```\n   *\n   * @param {string} name The name of the animation (this is what the class-based CSS value will be compared to).\n   * @param {Function} factory The factory function that will be executed to return the animation\n   *                           object.\n   */\n  this.register = function(name, factory) {\n    if (name && name.charAt(0) !== '.') {\n      throw $animateMinErr('notcsel', \"Expecting class selector starting with '.' got '{0}'.\", name);\n    }\n\n    var key = name + '-animation';\n    provider.$$registeredAnimations[name.substr(1)] = key;\n    $provide.factory(key, factory);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#classNameFilter\n   *\n   * @description\n   * Sets and/or returns the CSS class regular expression that is checked when performing\n   * an animation. Upon bootstrap the classNameFilter value is not set at all and will\n   * therefore enable $animate to attempt to perform an animation on any element that is triggered.\n   * When setting the `classNameFilter` value, animations will only be performed on elements\n   * that successfully match the filter expression. This in turn can boost performance\n   * for low-powered devices as well as applications containing a lot of structural operations.\n   * @param {RegExp=} expression The className expression which will be checked against all animations\n   * @return {RegExp} The current CSS className expression value. If null then there is no expression value\n   */\n  this.classNameFilter = function(expression) {\n    if (arguments.length === 1) {\n      this.$$classNameFilter = (expression instanceof RegExp) ? expression : null;\n      if (this.$$classNameFilter) {\n        var reservedRegex = new RegExp(\"(\\\\s+|\\\\/)\" + NG_ANIMATE_CLASSNAME + \"(\\\\s+|\\\\/)\");\n        if (reservedRegex.test(this.$$classNameFilter.toString())) {\n          throw $animateMinErr('nongcls','$animateProvider.classNameFilter(regex) prohibits accepting a regex value which matches/contains the \"{0}\" CSS class.', NG_ANIMATE_CLASSNAME);\n\n        }\n      }\n    }\n    return this.$$classNameFilter;\n  };\n\n  this.$get = ['$$animateQueue', function($$animateQueue) {\n    function domInsert(element, parentElement, afterElement) {\n      // if for some reason the previous element was removed\n      // from the dom sometime before this code runs then let's\n      // just stick to using the parent element as the anchor\n      if (afterElement) {\n        var afterNode = extractElementNode(afterElement);\n        if (afterNode && !afterNode.parentNode && !afterNode.previousElementSibling) {\n          afterElement = null;\n        }\n      }\n      afterElement ? afterElement.after(element) : parentElement.prepend(element);\n    }\n\n    /**\n     * @ngdoc service\n     * @name $animate\n     * @description The $animate service exposes a series of DOM utility methods that provide support\n     * for animation hooks. The default behavior is the application of DOM operations, however,\n     * when an animation is detected (and animations are enabled), $animate will do the heavy lifting\n     * to ensure that animation runs with the triggered DOM operation.\n     *\n     * By default $animate doesn't trigger any animations. This is because the `ngAnimate` module isn't\n     * included and only when it is active then the animation hooks that `$animate` triggers will be\n     * functional. Once active then all structural `ng-` directives will trigger animations as they perform\n     * their DOM-related operations (enter, leave and move). Other directives such as `ngClass`,\n     * `ngShow`, `ngHide` and `ngMessages` also provide support for animations.\n     *\n     * It is recommended that the`$animate` service is always used when executing DOM-related procedures within directives.\n     *\n     * To learn more about enabling animation support, click here to visit the\n     * {@link ngAnimate ngAnimate module page}.\n     */\n    return {\n      // we don't call it directly since non-existant arguments may\n      // be interpreted as null within the sub enabled function\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#on\n       * @kind function\n       * @description Sets up an event listener to fire whenever the animation event (enter, leave, move, etc...)\n       *    has fired on the given element or among any of its children. Once the listener is fired, the provided callback\n       *    is fired with the following params:\n       *\n       * ```js\n       * $animate.on('enter', container,\n       *    function callback(element, phase) {\n       *      // cool we detected an enter animation within the container\n       *    }\n       * );\n       * ```\n       *\n       * @param {string} event the animation event that will be captured (e.g. enter, leave, move, addClass, removeClass, etc...)\n       * @param {DOMElement} container the container element that will capture each of the animation events that are fired on itself\n       *     as well as among its children\n       * @param {Function} callback the callback function that will be fired when the listener is triggered\n       *\n       * The arguments present in the callback function are:\n       * * `element` - The captured DOM element that the animation was fired on.\n       * * `phase` - The phase of the animation. The two possible phases are **start** (when the animation starts) and **close** (when it ends).\n       */\n      on: $$animateQueue.on,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#off\n       * @kind function\n       * @description Deregisters an event listener based on the event which has been associated with the provided element. This method\n       * can be used in three different ways depending on the arguments:\n       *\n       * ```js\n       * // remove all the animation event listeners listening for `enter`\n       * $animate.off('enter');\n       *\n       * // remove all the animation event listeners listening for `enter` on the given element and its children\n       * $animate.off('enter', container);\n       *\n       * // remove the event listener function provided by `listenerFn` that is set\n       * // to listen for `enter` on the given `element` as well as its children\n       * $animate.off('enter', container, callback);\n       * ```\n       *\n       * @param {string} event the animation event (e.g. enter, leave, move, addClass, removeClass, etc...)\n       * @param {DOMElement=} container the container element the event listener was placed on\n       * @param {Function=} callback the callback function that was registered as the listener\n       */\n      off: $$animateQueue.off,\n\n      /**\n       * @ngdoc method\n       * @name $animate#pin\n       * @kind function\n       * @description Associates the provided element with a host parent element to allow the element to be animated even if it exists\n       *    outside of the DOM structure of the Angular application. By doing so, any animation triggered via `$animate` can be issued on the\n       *    element despite being outside the realm of the application or within another application. Say for example if the application\n       *    was bootstrapped on an element that is somewhere inside of the `<body>` tag, but we wanted to allow for an element to be situated\n       *    as a direct child of `document.body`, then this can be achieved by pinning the element via `$animate.pin(element)`. Keep in mind\n       *    that calling `$animate.pin(element, parentElement)` will not actually insert into the DOM anywhere; it will just create the association.\n       *\n       *    Note that this feature is only active when the `ngAnimate` module is used.\n       *\n       * @param {DOMElement} element the external element that will be pinned\n       * @param {DOMElement} parentElement the host parent element that will be associated with the external element\n       */\n      pin: $$animateQueue.pin,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enabled\n       * @kind function\n       * @description Used to get and set whether animations are enabled or not on the entire application or on an element and its children. This\n       * function can be called in four ways:\n       *\n       * ```js\n       * // returns true or false\n       * $animate.enabled();\n       *\n       * // changes the enabled state for all animations\n       * $animate.enabled(false);\n       * $animate.enabled(true);\n       *\n       * // returns true or false if animations are enabled for an element\n       * $animate.enabled(element);\n       *\n       * // changes the enabled state for an element and its children\n       * $animate.enabled(element, true);\n       * $animate.enabled(element, false);\n       * ```\n       *\n       * @param {DOMElement=} element the element that will be considered for checking/setting the enabled state\n       * @param {boolean=} enabled whether or not the animations will be enabled for the element\n       *\n       * @return {boolean} whether or not animations are enabled\n       */\n      enabled: $$animateQueue.enabled,\n\n      /**\n       * @ngdoc method\n       * @name $animate#cancel\n       * @kind function\n       * @description Cancels the provided animation.\n       *\n       * @param {Promise} animationPromise The animation promise that is returned when an animation is started.\n       */\n      cancel: function(runner) {\n        runner.end && runner.end();\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enter\n       * @kind function\n       * @description Inserts the element into the DOM either after the `after` element (if provided) or\n       *   as the first child within the `parent` element and then triggers an animation.\n       *   A promise is returned that will be resolved during the next digest once the animation\n       *   has completed.\n       *\n       * @param {DOMElement} element the element which will be inserted into the DOM\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element\n       *\n       * @return {Promise} the animation callback promise\n       */\n      enter: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'enter', prepareAnimateOptions(options));\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#move\n       * @kind function\n       * @description Inserts (moves) the element into its new position in the DOM either after\n       *   the `after` element (if provided) or as the first child within the `parent` element\n       *   and then triggers an animation. A promise is returned that will be resolved\n       *   during the next digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be moved into the new DOM position\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element\n       *\n       * @return {Promise} the animation callback promise\n       */\n      move: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'move', prepareAnimateOptions(options));\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#leave\n       * @kind function\n       * @description Triggers an animation and then removes the element from the DOM.\n       * When the function is called a promise is returned that will be resolved during the next\n       * digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be removed from the DOM\n       * @param {object=} options an optional collection of options/styles that will be applied to the element\n       *\n       * @return {Promise} the animation callback promise\n       */\n      leave: function(element, options) {\n        return $$animateQueue.push(element, 'leave', prepareAnimateOptions(options), function() {\n          element.remove();\n        });\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#addClass\n       * @kind function\n       *\n       * @description Triggers an addClass animation surrounding the addition of the provided CSS class(es). Upon\n       *   execution, the addClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element already contains the CSS class or if the class is removed at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element\n       *\n       * @return {Promise} the animation callback promise\n       */\n      addClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addclass, className);\n        return $$animateQueue.push(element, 'addClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#removeClass\n       * @kind function\n       *\n       * @description Triggers a removeClass animation surrounding the removal of the provided CSS class(es). Upon\n       *   execution, the removeClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element does not contain the CSS class or if the class is added at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element\n       *\n       * @return {Promise} the animation callback promise\n       */\n      removeClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.removeClass = mergeClasses(options.removeClass, className);\n        return $$animateQueue.push(element, 'removeClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#setClass\n       * @kind function\n       *\n       * @description Performs both the addition and removal of a CSS classes on an element and (during the process)\n       *    triggers an animation surrounding the class addition/removal. Much like `$animate.addClass` and\n       *    `$animate.removeClass`, `setClass` will only evaluate the classes being added/removed once a digest has\n       *    passed. Note that class-based animations are treated differently compared to structural animations\n       *    (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *    depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} add the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {string} remove the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element\n       *\n       * @return {Promise} the animation callback promise\n       */\n      setClass: function(element, add, remove, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addClass, add);\n        options.removeClass = mergeClasses(options.removeClass, remove);\n        return $$animateQueue.push(element, 'setClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#animate\n       * @kind function\n       *\n       * @description Performs an inline animation on the element which applies the provided to and from CSS styles to the element.\n       * If any detected CSS transition, keyframe or JavaScript matches the provided className value, then the animation will take\n       * on the provided styles. For example, if a transition animation is set for the given className, then the provided `from` and\n       * `to` styles will be applied alongside the given transition. If the CSS style provided in `from` does not have a corresponding\n       * style in `to`, the style in `from` is applied immediately, and no animation is run.\n       * If a JavaScript animation is detected then the provided styles will be given in as function parameters into the `animate`\n       * method (or as part of the `options` parameter):\n       *\n       * ```js\n       * ngModule.animation('.my-inline-animation', function() {\n       *   return {\n       *     animate : function(element, from, to, done, options) {\n       *       //animation\n       *       done();\n       *     }\n       *   }\n       * });\n       * ```\n       *\n       * @param {DOMElement} element the element which the CSS styles will be applied to\n       * @param {object} from the from (starting) CSS styles that will be applied to the element and across the animation.\n       * @param {object} to the to (destination) CSS styles that will be applied to the element and across the animation.\n       * @param {string=} className an optional CSS class that will be applied to the element for the duration of the animation. If\n       *    this value is left as empty then a CSS class of `ng-inline-animate` will be applied to the element.\n       *    (Note that if no animation is detected then this value will not be appplied to the element.)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element\n       *\n       * @return {Promise} the animation callback promise\n       */\n      animate: function(element, from, to, className, options) {\n        options = prepareAnimateOptions(options);\n        options.from = options.from ? extend(options.from, from) : from;\n        options.to   = options.to   ? extend(options.to, to)     : to;\n\n        className = className || 'ng-inline-animate';\n        options.tempClasses = mergeClasses(options.tempClasses, className);\n        return $$animateQueue.push(element, 'animate', options);\n      }\n    };\n  }];\n}];\n\nvar $$AnimateAsyncRunFactoryProvider = function() {\n  this.$get = ['$$rAF', function($$rAF) {\n    var waitQueue = [];\n\n    function waitForTick(fn) {\n      waitQueue.push(fn);\n      if (waitQueue.length > 1) return;\n      $$rAF(function() {\n        for (var i = 0; i < waitQueue.length; i++) {\n          waitQueue[i]();\n        }\n        waitQueue = [];\n      });\n    }\n\n    return function() {\n      var passed = false;\n      waitForTick(function() {\n        passed = true;\n      });\n      return function(callback) {\n        passed ? callback() : waitForTick(callback);\n      };\n    };\n  }];\n};\n\nvar $$AnimateRunnerFactoryProvider = function() {\n  this.$get = ['$q', '$sniffer', '$$animateAsyncRun', '$document', '$timeout',\n       function($q,   $sniffer,   $$animateAsyncRun,   $document,   $timeout) {\n\n    var INITIAL_STATE = 0;\n    var DONE_PENDING_STATE = 1;\n    var DONE_COMPLETE_STATE = 2;\n\n    AnimateRunner.chain = function(chain, callback) {\n      var index = 0;\n\n      next();\n      function next() {\n        if (index === chain.length) {\n          callback(true);\n          return;\n        }\n\n        chain[index](function(response) {\n          if (response === false) {\n            callback(false);\n            return;\n          }\n          index++;\n          next();\n        });\n      }\n    };\n\n    AnimateRunner.all = function(runners, callback) {\n      var count = 0;\n      var status = true;\n      forEach(runners, function(runner) {\n        runner.done(onProgress);\n      });\n\n      function onProgress(response) {\n        status = status && response;\n        if (++count === runners.length) {\n          callback(status);\n        }\n      }\n    };\n\n    function AnimateRunner(host) {\n      this.setHost(host);\n\n      var rafTick = $$animateAsyncRun();\n      var timeoutTick = function(fn) {\n        $timeout(fn, 0, false);\n      };\n\n      this._doneCallbacks = [];\n      this._tick = function(fn) {\n        var doc = $document[0];\n\n        // the document may not be ready or attached\n        // to the module for some internal tests\n        if (doc && doc.hidden) {\n          timeoutTick(fn);\n        } else {\n          rafTick(fn);\n        }\n      };\n      this._state = 0;\n    }\n\n    AnimateRunner.prototype = {\n      setHost: function(host) {\n        this.host = host || {};\n      },\n\n      done: function(fn) {\n        if (this._state === DONE_COMPLETE_STATE) {\n          fn();\n        } else {\n          this._doneCallbacks.push(fn);\n        }\n      },\n\n      progress: noop,\n\n      getPromise: function() {\n        if (!this.promise) {\n          var self = this;\n          this.promise = $q(function(resolve, reject) {\n            self.done(function(status) {\n              status === false ? reject() : resolve();\n            });\n          });\n        }\n        return this.promise;\n      },\n\n      then: function(resolveHandler, rejectHandler) {\n        return this.getPromise().then(resolveHandler, rejectHandler);\n      },\n\n      'catch': function(handler) {\n        return this.getPromise()['catch'](handler);\n      },\n\n      'finally': function(handler) {\n        return this.getPromise()['finally'](handler);\n      },\n\n      pause: function() {\n        if (this.host.pause) {\n          this.host.pause();\n        }\n      },\n\n      resume: function() {\n        if (this.host.resume) {\n          this.host.resume();\n        }\n      },\n\n      end: function() {\n        if (this.host.end) {\n          this.host.end();\n        }\n        this._resolve(true);\n      },\n\n      cancel: function() {\n        if (this.host.cancel) {\n          this.host.cancel();\n        }\n        this._resolve(false);\n      },\n\n      complete: function(response) {\n        var self = this;\n        if (self._state === INITIAL_STATE) {\n          self._state = DONE_PENDING_STATE;\n          self._tick(function() {\n            self._resolve(response);\n          });\n        }\n      },\n\n      _resolve: function(response) {\n        if (this._state !== DONE_COMPLETE_STATE) {\n          forEach(this._doneCallbacks, function(fn) {\n            fn(response);\n          });\n          this._doneCallbacks.length = 0;\n          this._state = DONE_COMPLETE_STATE;\n        }\n      }\n    };\n\n    return AnimateRunner;\n  }];\n};\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n *\n * @description\n * This is the core version of `$animateCss`. By default, only when the `ngAnimate` is included,\n * then the `$animateCss` service will actually perform animations.\n *\n * Click here {@link ngAnimate.$animateCss to read the documentation for $animateCss}.\n */\nvar $CoreAnimateCssProvider = function() {\n  this.$get = ['$$rAF', '$q', '$$AnimateRunner', function($$rAF, $q, $$AnimateRunner) {\n\n    return function(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = copy(options);\n      }\n\n      // there is no point in applying the styles since\n      // there is no animation that goes on at all in\n      // this version of $animateCss.\n      if (options.cleanupStyles) {\n        options.from = options.to = null;\n      }\n\n      if (options.from) {\n        element.css(options.from);\n        options.from = null;\n      }\n\n      /* jshint newcap: false*/\n      var closed, runner = new $$AnimateRunner();\n      return {\n        start: run,\n        end: run\n      };\n\n      function run() {\n        $$rAF(function() {\n          applyAnimationContents();\n          if (!closed) {\n            runner.complete();\n          }\n          closed = true;\n        });\n        return runner;\n      }\n\n      function applyAnimationContents() {\n        if (options.addClass) {\n          element.addClass(options.addClass);\n          options.addClass = null;\n        }\n        if (options.removeClass) {\n          element.removeClass(options.removeClass);\n          options.removeClass = null;\n        }\n        if (options.to) {\n          element.css(options.to);\n          options.to = null;\n        }\n      }\n    };\n  }];\n};\n\n/* global stripHash: true */\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n * @requires $log\n * @description\n * This object has two goals:\n *\n * - hide all the global state in the browser caused by the window object\n * - abstract away all the browser specific features and inconsistencies\n *\n * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`\n * service, which can be used for convenient testing of the application without the interaction with\n * the real browser apis.\n */\n/**\n * @param {object} window The global window object.\n * @param {object} document jQuery wrapped document.\n * @param {object} $log window.console or an object with the same interface.\n * @param {object} $sniffer $sniffer service\n */\nfunction Browser(window, document, $log, $sniffer) {\n  var self = this,\n      rawDocument = document[0],\n      location = window.location,\n      history = window.history,\n      setTimeout = window.setTimeout,\n      clearTimeout = window.clearTimeout,\n      pendingDeferIds = {};\n\n  self.isMock = false;\n\n  var outstandingRequestCount = 0;\n  var outstandingRequestCallbacks = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = completeOutstandingRequest;\n  self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };\n\n  /**\n   * Executes the `fn` function(supports currying) and decrements the `outstandingRequestCallbacks`\n   * counter. If the counter reaches 0, all the `outstandingRequestCallbacks` are executed.\n   */\n  function completeOutstandingRequest(fn) {\n    try {\n      fn.apply(null, sliceArgs(arguments, 1));\n    } finally {\n      outstandingRequestCount--;\n      if (outstandingRequestCount === 0) {\n        while (outstandingRequestCallbacks.length) {\n          try {\n            outstandingRequestCallbacks.pop()();\n          } catch (e) {\n            $log.error(e);\n          }\n        }\n      }\n    }\n  }\n\n  function getHash(url) {\n    var index = url.indexOf('#');\n    return index === -1 ? '' : url.substr(index);\n  }\n\n  /**\n   * @private\n   * Note: this method is used only by scenario runner\n   * TODO(vojta): prefix this method with $$ ?\n   * @param {function()} callback Function that will be called when no outstanding request\n   */\n  self.notifyWhenNoOutstandingRequests = function(callback) {\n    if (outstandingRequestCount === 0) {\n      callback();\n    } else {\n      outstandingRequestCallbacks.push(callback);\n    }\n  };\n\n  //////////////////////////////////////////////////////////////\n  // URL API\n  //////////////////////////////////////////////////////////////\n\n  var cachedState, lastHistoryState,\n      lastBrowserUrl = location.href,\n      baseElement = document.find('base'),\n      pendingLocation = null;\n\n  cacheState();\n  lastHistoryState = cachedState;\n\n  /**\n   * @name $browser#url\n   *\n   * @description\n   * GETTER:\n   * Without any argument, this method just returns current value of location.href.\n   *\n   * SETTER:\n   * With at least one argument, this method sets url to new value.\n   * If html5 history api supported, pushState/replaceState is used, otherwise\n   * location.href/location.replace is used.\n   * Returns its own instance to allow chaining\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to change url.\n   *\n   * @param {string} url New url (when used as setter)\n   * @param {boolean=} replace Should new url replace current history record?\n   * @param {object=} state object to use with pushState/replaceState\n   */\n  self.url = function(url, replace, state) {\n    // In modern browsers `history.state` is `null` by default; treating it separately\n    // from `undefined` would cause `$browser.url('/foo')` to change `history.state`\n    // to undefined via `pushState`. Instead, let's change `undefined` to `null` here.\n    if (isUndefined(state)) {\n      state = null;\n    }\n\n    // Android Browser BFCache causes location, history reference to become stale.\n    if (location !== window.location) location = window.location;\n    if (history !== window.history) history = window.history;\n\n    // setter\n    if (url) {\n      var sameState = lastHistoryState === state;\n\n      // Don't change anything if previous and current URLs and states match. This also prevents\n      // IE<10 from getting into redirect loop when in LocationHashbangInHtml5Url mode.\n      // See https://github.com/angular/angular.js/commit/ffb2701\n      if (lastBrowserUrl === url && (!$sniffer.history || sameState)) {\n        return self;\n      }\n      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);\n      lastBrowserUrl = url;\n      lastHistoryState = state;\n      // Don't use history API if only the hash changed\n      // due to a bug in IE10/IE11 which leads\n      // to not firing a `hashchange` nor `popstate` event\n      // in some cases (see #9143).\n      if ($sniffer.history && (!sameBase || !sameState)) {\n        history[replace ? 'replaceState' : 'pushState'](state, '', url);\n        cacheState();\n        // Do the assignment again so that those two variables are referentially identical.\n        lastHistoryState = cachedState;\n      } else {\n        if (!sameBase || pendingLocation) {\n          pendingLocation = url;\n        }\n        if (replace) {\n          location.replace(url);\n        } else if (!sameBase) {\n          location.href = url;\n        } else {\n          location.hash = getHash(url);\n        }\n        if (location.href !== url) {\n          pendingLocation = url;\n        }\n      }\n      return self;\n    // getter\n    } else {\n      // - pendingLocation is needed as browsers don't allow to read out\n      //   the new location.href if a reload happened or if there is a bug like in iOS 9 (see\n      //   https://openradar.appspot.com/22186109).\n      // - the replacement is a workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=407172\n      return pendingLocation || location.href.replace(/%27/g,\"'\");\n    }\n  };\n\n  /**\n   * @name $browser#state\n   *\n   * @description\n   * This method is a getter.\n   *\n   * Return history.state or null if history.state is undefined.\n   *\n   * @returns {object} state\n   */\n  self.state = function() {\n    return cachedState;\n  };\n\n  var urlChangeListeners = [],\n      urlChangeInit = false;\n\n  function cacheStateAndFireUrlChange() {\n    pendingLocation = null;\n    cacheState();\n    fireUrlChange();\n  }\n\n  function getCurrentState() {\n    try {\n      return history.state;\n    } catch (e) {\n      // MSIE can reportedly throw when there is no state (UNCONFIRMED).\n    }\n  }\n\n  // This variable should be used *only* inside the cacheState function.\n  var lastCachedState = null;\n  function cacheState() {\n    // This should be the only place in $browser where `history.state` is read.\n    cachedState = getCurrentState();\n    cachedState = isUndefined(cachedState) ? null : cachedState;\n\n    // Prevent callbacks fo fire twice if both hashchange & popstate were fired.\n    if (equals(cachedState, lastCachedState)) {\n      cachedState = lastCachedState;\n    }\n    lastCachedState = cachedState;\n  }\n\n  function fireUrlChange() {\n    if (lastBrowserUrl === self.url() && lastHistoryState === cachedState) {\n      return;\n    }\n\n    lastBrowserUrl = self.url();\n    lastHistoryState = cachedState;\n    forEach(urlChangeListeners, function(listener) {\n      listener(self.url(), cachedState);\n    });\n  }\n\n  /**\n   * @name $browser#onUrlChange\n   *\n   * @description\n   * Register callback function that will be called, when url changes.\n   *\n   * It's only called when the url is changed from outside of angular:\n   * - user types different url into address bar\n   * - user clicks on history (forward/back) button\n   * - user clicks on a link\n   *\n   * It's not called when url is changed by $browser.url() method\n   *\n   * The listener gets called with new url as parameter.\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to monitor url changes in angular apps.\n   *\n   * @param {function(string)} listener Listener function to be called when url changes.\n   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.\n   */\n  self.onUrlChange = function(callback) {\n    // TODO(vojta): refactor to use node's syntax for events\n    if (!urlChangeInit) {\n      // We listen on both (hashchange/popstate) when available, as some browsers (e.g. Opera)\n      // don't fire popstate when user change the address bar and don't fire hashchange when url\n      // changed by push/replaceState\n\n      // html5 history api - popstate event\n      if ($sniffer.history) jqLite(window).on('popstate', cacheStateAndFireUrlChange);\n      // hashchange event\n      jqLite(window).on('hashchange', cacheStateAndFireUrlChange);\n\n      urlChangeInit = true;\n    }\n\n    urlChangeListeners.push(callback);\n    return callback;\n  };\n\n  /**\n   * @private\n   * Remove popstate and hashchange handler from window.\n   *\n   * NOTE: this api is intended for use only by $rootScope.\n   */\n  self.$$applicationDestroyed = function() {\n    jqLite(window).off('hashchange popstate', cacheStateAndFireUrlChange);\n  };\n\n  /**\n   * Checks whether the url has changed outside of Angular.\n   * Needs to be exported to be able to check for changes that have been done in sync,\n   * as hashchange/popstate events fire in async.\n   */\n  self.$$checkUrlChange = fireUrlChange;\n\n  //////////////////////////////////////////////////////////////\n  // Misc API\n  //////////////////////////////////////////////////////////////\n\n  /**\n   * @name $browser#baseHref\n   *\n   * @description\n   * Returns current <base href>\n   * (always relative - without domain)\n   *\n   * @returns {string} The current base href\n   */\n  self.baseHref = function() {\n    var href = baseElement.attr('href');\n    return href ? href.replace(/^(https?\\:)?\\/\\/[^\\/]*/, '') : '';\n  };\n\n  /**\n   * @name $browser#defer\n   * @param {function()} fn A function, who's execution should be deferred.\n   * @param {number=} [delay=0] of milliseconds to defer the function execution.\n   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.\n   *\n   * @description\n   * Executes a fn asynchronously via `setTimeout(fn, delay)`.\n   *\n   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using\n   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed\n   * via `$browser.defer.flush()`.\n   *\n   */\n  self.defer = function(fn, delay) {\n    var timeoutId;\n    outstandingRequestCount++;\n    timeoutId = setTimeout(function() {\n      delete pendingDeferIds[timeoutId];\n      completeOutstandingRequest(fn);\n    }, delay || 0);\n    pendingDeferIds[timeoutId] = true;\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.cancel\n   *\n   * @description\n   * Cancels a deferred task identified with `deferId`.\n   *\n   * @param {*} deferId Token returned by the `$browser.defer` function.\n   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n   *                    canceled.\n   */\n  self.defer.cancel = function(deferId) {\n    if (pendingDeferIds[deferId]) {\n      delete pendingDeferIds[deferId];\n      clearTimeout(deferId);\n      completeOutstandingRequest(noop);\n      return true;\n    }\n    return false;\n  };\n\n}\n\nfunction $BrowserProvider() {\n  this.$get = ['$window', '$log', '$sniffer', '$document',\n      function($window, $log, $sniffer, $document) {\n        return new Browser($window, $document, $log, $sniffer);\n      }];\n}\n\n/**\n * @ngdoc service\n * @name $cacheFactory\n *\n * @description\n * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to\n * them.\n *\n * ```js\n *\n *  var cache = $cacheFactory('cacheId');\n *  expect($cacheFactory.get('cacheId')).toBe(cache);\n *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();\n *\n *  cache.put(\"key\", \"value\");\n *  cache.put(\"another key\", \"another value\");\n *\n *  // We've specified no options on creation\n *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});\n *\n * ```\n *\n *\n * @param {string} cacheId Name or id of the newly created cache.\n * @param {object=} options Options object that specifies the cache behavior. Properties:\n *\n *   - `{number=}` `capacity` — turns the cache into LRU cache.\n *\n * @returns {object} Newly created cache object with the following set of methods:\n *\n * - `{object}` `info()` — Returns id, size, and options of cache.\n * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns\n *   it.\n * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.\n * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.\n * - `{void}` `removeAll()` — Removes all cached values.\n * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.\n *\n * @example\n   <example module=\"cacheExampleApp\">\n     <file name=\"index.html\">\n       <div ng-controller=\"CacheController\">\n         <input ng-model=\"newCacheKey\" placeholder=\"Key\">\n         <input ng-model=\"newCacheValue\" placeholder=\"Value\">\n         <button ng-click=\"put(newCacheKey, newCacheValue)\">Cache</button>\n\n         <p ng-if=\"keys.length\">Cached Values</p>\n         <div ng-repeat=\"key in keys\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"cache.get(key)\"></b>\n         </div>\n\n         <p>Cache Info</p>\n         <div ng-repeat=\"(key, value) in cache.info()\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"value\"></b>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('cacheExampleApp', []).\n         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {\n           $scope.keys = [];\n           $scope.cache = $cacheFactory('cacheId');\n           $scope.put = function(key, value) {\n             if (angular.isUndefined($scope.cache.get(key))) {\n               $scope.keys.push(key);\n             }\n             $scope.cache.put(key, angular.isUndefined(value) ? null : value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       p {\n         margin: 10px 0 3px;\n       }\n     </file>\n   </example>\n */\nfunction $CacheFactoryProvider() {\n\n  this.$get = function() {\n    var caches = {};\n\n    function cacheFactory(cacheId, options) {\n      if (cacheId in caches) {\n        throw minErr('$cacheFactory')('iid', \"CacheId '{0}' is already taken!\", cacheId);\n      }\n\n      var size = 0,\n          stats = extend({}, options, {id: cacheId}),\n          data = createMap(),\n          capacity = (options && options.capacity) || Number.MAX_VALUE,\n          lruHash = createMap(),\n          freshEnd = null,\n          staleEnd = null;\n\n      /**\n       * @ngdoc type\n       * @name $cacheFactory.Cache\n       *\n       * @description\n       * A cache object used to store and retrieve data, primarily used by\n       * {@link $http $http} and the {@link ng.directive:script script} directive to cache\n       * templates and other data.\n       *\n       * ```js\n       *  angular.module('superCache')\n       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {\n       *      return $cacheFactory('super-cache');\n       *    }]);\n       * ```\n       *\n       * Example test:\n       *\n       * ```js\n       *  it('should behave like a cache', inject(function(superCache) {\n       *    superCache.put('key', 'value');\n       *    superCache.put('another key', 'another value');\n       *\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 2\n       *    });\n       *\n       *    superCache.remove('another key');\n       *    expect(superCache.get('another key')).toBeUndefined();\n       *\n       *    superCache.removeAll();\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 0\n       *    });\n       *  }));\n       * ```\n       */\n      return caches[cacheId] = {\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#put\n         * @kind function\n         *\n         * @description\n         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be\n         * retrieved later, and incrementing the size of the cache if the key was not already\n         * present in the cache. If behaving like an LRU cache, it will also remove stale\n         * entries from the set.\n         *\n         * It will not insert undefined values into the cache.\n         *\n         * @param {string} key the key under which the cached data is stored.\n         * @param {*} value the value to store alongside the key. If it is undefined, the key\n         *    will not be stored.\n         * @returns {*} the value stored.\n         */\n        put: function(key, value) {\n          if (isUndefined(value)) return;\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});\n\n            refresh(lruEntry);\n          }\n\n          if (!(key in data)) size++;\n          data[key] = value;\n\n          if (size > capacity) {\n            this.remove(staleEnd.key);\n          }\n\n          return value;\n        },\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#get\n         * @kind function\n         *\n         * @description\n         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the data to be retrieved\n         * @returns {*} the value stored.\n         */\n        get: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            refresh(lruEntry);\n          }\n\n          return data[key];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#remove\n         * @kind function\n         *\n         * @description\n         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the entry to be removed\n         */\n        remove: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            if (lruEntry == freshEnd) freshEnd = lruEntry.p;\n            if (lruEntry == staleEnd) staleEnd = lruEntry.n;\n            link(lruEntry.n,lruEntry.p);\n\n            delete lruHash[key];\n          }\n\n          if (!(key in data)) return;\n\n          delete data[key];\n          size--;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#removeAll\n         * @kind function\n         *\n         * @description\n         * Clears the cache object of any entries.\n         */\n        removeAll: function() {\n          data = createMap();\n          size = 0;\n          lruHash = createMap();\n          freshEnd = staleEnd = null;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#destroy\n         * @kind function\n         *\n         * @description\n         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,\n         * removing it from the {@link $cacheFactory $cacheFactory} set.\n         */\n        destroy: function() {\n          data = null;\n          stats = null;\n          lruHash = null;\n          delete caches[cacheId];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#info\n         * @kind function\n         *\n         * @description\n         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.\n         *\n         * @returns {object} an object with the following properties:\n         *   <ul>\n         *     <li>**id**: the id of the cache instance</li>\n         *     <li>**size**: the number of entries kept in the cache instance</li>\n         *     <li>**...**: any additional properties from the options object when creating the\n         *       cache.</li>\n         *   </ul>\n         */\n        info: function() {\n          return extend({}, stats, {size: size});\n        }\n      };\n\n\n      /**\n       * makes the `entry` the freshEnd of the LRU linked list\n       */\n      function refresh(entry) {\n        if (entry != freshEnd) {\n          if (!staleEnd) {\n            staleEnd = entry;\n          } else if (staleEnd == entry) {\n            staleEnd = entry.n;\n          }\n\n          link(entry.n, entry.p);\n          link(entry, freshEnd);\n          freshEnd = entry;\n          freshEnd.n = null;\n        }\n      }\n\n\n      /**\n       * bidirectionally links two entries of the LRU linked list\n       */\n      function link(nextEntry, prevEntry) {\n        if (nextEntry != prevEntry) {\n          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify\n          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify\n        }\n      }\n    }\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#info\n   *\n   * @description\n   * Get information about all the caches that have been created\n   *\n   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`\n   */\n    cacheFactory.info = function() {\n      var info = {};\n      forEach(caches, function(cache, cacheId) {\n        info[cacheId] = cache.info();\n      });\n      return info;\n    };\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#get\n   *\n   * @description\n   * Get access to a cache object by the `cacheId` used when it was created.\n   *\n   * @param {string} cacheId Name or id of a cache to access.\n   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.\n   */\n    cacheFactory.get = function(cacheId) {\n      return caches[cacheId];\n    };\n\n\n    return cacheFactory;\n  };\n}\n\n/**\n * @ngdoc service\n * @name $templateCache\n *\n * @description\n * The first time a template is used, it is loaded in the template cache for quick retrieval. You\n * can load templates directly into the cache in a `script` tag, or by consuming the\n * `$templateCache` service directly.\n *\n * Adding via the `script` tag:\n *\n * ```html\n *   <script type=\"text/ng-template\" id=\"templateId.html\">\n *     <p>This is the content of the template</p>\n *   </script>\n * ```\n *\n * **Note:** the `script` tag containing the template does not need to be included in the `head` of\n * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (IE,\n * element with ng-app attribute), otherwise the template will be ignored.\n *\n * Adding via the `$templateCache` service:\n *\n * ```js\n * var myApp = angular.module('myApp', []);\n * myApp.run(function($templateCache) {\n *   $templateCache.put('templateId.html', 'This is the content of the template');\n * });\n * ```\n *\n * To retrieve the template later, simply use it in your HTML:\n * ```html\n * <div ng-include=\" 'templateId.html' \"></div>\n * ```\n *\n * or get it via Javascript:\n * ```js\n * $templateCache.get('templateId.html')\n * ```\n *\n * See {@link ng.$cacheFactory $cacheFactory}.\n *\n */\nfunction $TemplateCacheProvider() {\n  this.$get = ['$cacheFactory', function($cacheFactory) {\n    return $cacheFactory('templates');\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!\n *\n * DOM-related variables:\n *\n * - \"node\" - DOM Node\n * - \"element\" - DOM Element or Node\n * - \"$node\" or \"$element\" - jqLite-wrapped node or element\n *\n *\n * Compiler related stuff:\n *\n * - \"linkFn\" - linking fn of a single directive\n * - \"nodeLinkFn\" - function that aggregates all linking fns for a particular node\n * - \"childLinkFn\" -  function that aggregates all linking fns for child nodes of a particular node\n * - \"compositeLinkFn\" - function that aggregates all linking fns for a compilation root (nodeList)\n */\n\n\n/**\n * @ngdoc service\n * @name $compile\n * @kind function\n *\n * @description\n * Compiles an HTML string or DOM into a template and produces a template function, which\n * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.\n *\n * The compilation is a process of walking the DOM tree and matching DOM elements to\n * {@link ng.$compileProvider#directive directives}.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** This document is an in-depth reference of all directive options.\n * For a gentle introduction to directives with examples of common use cases,\n * see the {@link guide/directive directive guide}.\n * </div>\n *\n * ## Comprehensive Directive API\n *\n * There are many different options for a directive.\n *\n * The difference resides in the return value of the factory function.\n * You can either return a \"Directive Definition Object\" (see below) that defines the directive properties,\n * or just the `postLink` function (all other properties will have the default values).\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's recommended to use the \"directive definition object\" form.\n * </div>\n *\n * Here's an example directive declared with a Directive Definition Object:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       priority: 0,\n *       template: '<div></div>', // or // function(tElement, tAttrs) { ... },\n *       // or\n *       // templateUrl: 'directive.html', // or // function(tElement, tAttrs) { ... },\n *       transclude: false,\n *       restrict: 'A',\n *       templateNamespace: 'html',\n *       scope: false,\n *       controller: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },\n *       controllerAs: 'stringIdentifier',\n *       bindToController: false,\n *       require: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],\n *       compile: function compile(tElement, tAttrs, transclude) {\n *         return {\n *           pre: function preLink(scope, iElement, iAttrs, controller) { ... },\n *           post: function postLink(scope, iElement, iAttrs, controller) { ... }\n *         }\n *         // or\n *         // return function postLink( ... ) { ... }\n *       },\n *       // or\n *       // link: {\n *       //  pre: function preLink(scope, iElement, iAttrs, controller) { ... },\n *       //  post: function postLink(scope, iElement, iAttrs, controller) { ... }\n *       // }\n *       // or\n *       // link: function postLink( ... ) { ... }\n *     };\n *     return directiveDefinitionObject;\n *   });\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Any unspecified options will use the default value. You can see the default values below.\n * </div>\n *\n * Therefore the above can be simplified as:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       link: function postLink(scope, iElement, iAttrs) { ... }\n *     };\n *     return directiveDefinitionObject;\n *     // or\n *     // return function postLink(scope, iElement, iAttrs) { ... }\n *   });\n * ```\n *\n *\n *\n * ### Directive Definition Object\n *\n * The directive definition object provides instructions to the {@link ng.$compile\n * compiler}. The attributes are:\n *\n * #### `multiElement`\n * When this property is set to true, the HTML compiler will collect DOM nodes between\n * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them\n * together as the directive elements. It is recommended that this feature be used on directives\n * which are not strictly behavioural (such as {@link ngClick}), and which\n * do not manipulate or replace child nodes (such as {@link ngInclude}).\n *\n * #### `priority`\n * When there are multiple directives defined on a single DOM element, sometimes it\n * is necessary to specify the order in which the directives are applied. The `priority` is used\n * to sort the directives before their `compile` functions get called. Priority is defined as a\n * number. Directives with greater numerical `priority` are compiled first. Pre-link functions\n * are also run in priority order, but post-link functions are run in reverse order. The order\n * of directives with the same priority is undefined. The default priority is `0`.\n *\n * #### `terminal`\n * If set to true then the current `priority` will be the last set of directives\n * which will execute (any directives at the current priority will still execute\n * as the order of execution on same `priority` is undefined). Note that expressions\n * and other directives used in the directive's template will also be excluded from execution.\n *\n * #### `scope`\n * The scope property can be `true`, an object or a falsy value:\n *\n * * **falsy:** No scope will be created for the directive. The directive will use its parent's scope.\n *\n * * **`true`:** A new child scope that prototypically inherits from its parent will be created for\n * the directive's element. If multiple directives on the same element request a new scope,\n * only one new scope is created. The new scope rule does not apply for the root of the template\n * since the root of the template always gets a new scope.\n *\n * * **`{...}` (an object hash):** A new \"isolate\" scope is created for the directive's element. The\n * 'isolate' scope differs from normal scope in that it does not prototypically inherit from its parent\n * scope. This is useful when creating reusable components, which should not accidentally read or modify\n * data in the parent scope.\n *\n * The 'isolate' scope object hash defines a set of local scope properties derived from attributes on the\n * directive's element. These local properties are useful for aliasing values for templates. The keys in\n * the object hash map to the name of the property on the isolate scope; the values define how the property\n * is bound to the parent scope, via matching attributes on the directive's element:\n *\n * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is\n *   always a string since DOM attributes are strings. If no `attr` name is specified then the\n *   attribute name is assumed to be the same as the local name. Given `<my-component\n *   my-attr=\"hello {{name}}\">` and the isolate scope definition `scope: { localName:'@myAttr' }`,\n *   the directive's scope property `localName` will reflect the interpolated value of `hello\n *   {{name}}`. As the `name` attribute changes so will the `localName` property on the directive's\n *   scope. The `name` is read from the parent scope (not the directive's scope).\n *\n * * `=` or `=attr` - set up a bidirectional binding between a local scope property and an expression\n *   passed via the attribute `attr`. The expression is evaluated in the context of the parent scope.\n *   If no `attr` name is specified then the attribute name is assumed to be the same as the local\n *   name. Given `<my-component my-attr=\"parentModel\">` and the isolate scope definition `scope: {\n *   localModel: '=myAttr' }`, the property `localModel` on the directive's scope will reflect the\n *   value of `parentModel` on the parent scope. Changes to `parentModel` will be reflected in\n *   `localModel` and vice versa. Optional attributes should be marked as such with a question mark:\n *   `=?` or `=?attr`. If the binding expression is non-assignable, or if the attribute isn't\n *   optional and doesn't exist, an exception ({@link error/$compile/nonassign `$compile:nonassign`})\n *   will be thrown upon discovering changes to the local value, since it will be impossible to sync\n *   them back to the parent scope. By default, the {@link ng.$rootScope.Scope#$watch `$watch`}\n *   method is used for tracking changes, and the equality check is based on object identity.\n *   However, if an object literal or an array literal is passed as the binding expression, the\n *   equality check is done by value (using the {@link angular.equals} function). It's also possible\n *   to watch the evaluated value shallowly with {@link ng.$rootScope.Scope#$watchCollection\n *   `$watchCollection`}: use `=*` or `=*attr` (`=*?` or `=*?attr` if the attribute is optional).\n *\n * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope. If\n *   no `attr` name is specified then the attribute name is assumed to be the same as the local name.\n *   Given `<my-component my-attr=\"count = count + value\">` and the isolate scope definition `scope: {\n *   localFn:'&myAttr' }`, the isolate scope property `localFn` will point to a function wrapper for\n *   the `count = count + value` expression. Often it's desirable to pass data from the isolated scope\n *   via an expression to the parent scope. This can be done by passing a map of local variable names\n *   and values into the expression wrapper fn. For example, if the expression is `increment(amount)`\n *   then we can specify the amount value by calling the `localFn` as `localFn({amount: 22})`.\n *\n * In general it's possible to apply more than one directive to one element, but there might be limitations\n * depending on the type of scope required by the directives. The following points will help explain these limitations.\n * For simplicity only two directives are taken into account, but it is also applicable for several directives:\n *\n * * **no scope** + **no scope** => Two directives which don't require their own scope will use their parent's scope\n * * **child scope** + **no scope** =>  Both directives will share one single child scope\n * * **child scope** + **child scope** =>  Both directives will share one single child scope\n * * **isolated scope** + **no scope** =>  The isolated directive will use it's own created isolated scope. The other directive will use\n * its parent's scope\n * * **isolated scope** + **child scope** =>  **Won't work!** Only one scope can be related to one element. Therefore these directives cannot\n * be applied to the same element.\n * * **isolated scope** + **isolated scope**  =>  **Won't work!** Only one scope can be related to one element. Therefore these directives\n * cannot be applied to the same element.\n *\n *\n * #### `bindToController`\n * This property is used to bind scope properties directly to the controller. It can be either\n * `true` or an object hash with the same format as the `scope` property. Additionally, a controller\n * alias must be set, either by using `controllerAs: 'myAlias'` or by specifying the alias in the controller\n * definition: `controller: 'myCtrl as myAlias'`.\n *\n * When an isolate scope is used for a directive (see above), `bindToController: true` will\n * allow a component to have its properties bound to the controller, rather than to scope. When the controller\n * is instantiated, the initial values of the isolate scope bindings are already available.\n *\n * It is also possible to set `bindToController` to an object hash with the same format as the `scope` property.\n * This will set up the scope bindings to the controller directly. Note that `scope` can still be used\n * to define which kind of scope is created. By default, no scope is created. Use `scope: {}` to create an isolate\n * scope (useful for component directives).\n *\n * If both `bindToController` and `scope` are defined and have object hashes, `bindToController` overrides `scope`.\n *\n *\n * #### `controller`\n * Controller constructor function. The controller is instantiated before the\n * pre-linking phase and can be accessed by other directives (see\n * `require` attribute). This allows the directives to communicate with each other and augment\n * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:\n *\n * * `$scope` - Current scope associated with the element\n * * `$element` - Current element\n * * `$attrs` - Current attributes object for the element\n * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:\n *   `function([scope], cloneLinkingFn, futureParentElement)`.\n *    * `scope`: optional argument to override the scope.\n *    * `cloneLinkingFn`: optional argument to create clones of the original transcluded content.\n *    * `futureParentElement`:\n *        * defines the parent to which the `cloneLinkingFn` will add the cloned elements.\n *        * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.\n *        * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)\n *          and when the `cloneLinkinFn` is passed,\n *          as those elements need to created and cloned in a special way when they are defined outside their\n *          usual containers (e.g. like `<svg>`).\n *        * See also the `directive.templateNamespace` property.\n *\n *\n * #### `require`\n * Require another directive and inject its controller as the fourth argument to the linking function. The\n * `require` takes a string name (or array of strings) of the directive(s) to pass in. If an array is used, the\n * injected argument will be an array in corresponding order. If no such directive can be\n * found, or if the directive does not have a controller, then an error is raised (unless no link function\n * is specified, in which case error checking is skipped). The name can be prefixed with:\n *\n * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.\n * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.\n * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.\n * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.\n * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass\n *   `null` to the `link` fn if not found.\n * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass\n *   `null` to the `link` fn if not found.\n *\n *\n * #### `controllerAs`\n * Identifier name for a reference to the controller in the directive's scope.\n * This allows the controller to be referenced from the directive template. This is especially\n * useful when a directive is used as component, i.e. with an `isolate` scope. It's also possible\n * to use it in a directive without an `isolate` / `new` scope, but you need to be aware that the\n * `controllerAs` reference might overwrite a property that already exists on the parent scope.\n *\n *\n * #### `restrict`\n * String of subset of `EACM` which restricts the directive to a specific directive\n * declaration style. If omitted, the defaults (elements and attributes) are used.\n *\n * * `E` - Element name (default): `<my-directive></my-directive>`\n * * `A` - Attribute (default): `<div my-directive=\"exp\"></div>`\n * * `C` - Class: `<div class=\"my-directive: exp;\"></div>`\n * * `M` - Comment: `<!-- directive: my-directive exp -->`\n *\n *\n * #### `templateNamespace`\n * String representing the document type used by the markup in the template.\n * AngularJS needs this information as those elements need to be created and cloned\n * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.\n *\n * * `html` - All root nodes in the template are HTML. Root nodes may also be\n *   top-level elements such as `<svg>` or `<math>`.\n * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).\n * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).\n *\n * If no `templateNamespace` is specified, then the namespace is considered to be `html`.\n *\n * #### `template`\n * HTML markup that may:\n * * Replace the contents of the directive's element (default).\n * * Replace the directive's element itself (if `replace` is true - DEPRECATED).\n * * Wrap the contents of the directive's element (if `transclude` is true).\n *\n * Value may be:\n *\n * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.\n * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`\n *   function api below) and returns a string value.\n *\n *\n * #### `templateUrl`\n * This is similar to `template` but the template is loaded from the specified URL, asynchronously.\n *\n * Because template loading is asynchronous the compiler will suspend compilation of directives on that element\n * for later when the template has been resolved.  In the meantime it will continue to compile and link\n * sibling and parent elements as though this element had not contained any directives.\n *\n * The compiler does not suspend the entire compilation to wait for templates to be loaded because this\n * would result in the whole app \"stalling\" until all templates are loaded asynchronously - even in the\n * case when only one deeply nested directive has `templateUrl`.\n *\n * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}\n *\n * You can specify `templateUrl` as a string representing the URL or as a function which takes two\n * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns\n * a string value representing the url.  In either case, the template URL is passed through {@link\n * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.\n *\n *\n * #### `replace` ([*DEPRECATED*!], will be removed in next major release - i.e. v2.0)\n * specify what the template should replace. Defaults to `false`.\n *\n * * `true` - the template will replace the directive's element.\n * * `false` - the template will replace the contents of the directive's element.\n *\n * The replacement process migrates all of the attributes / classes from the old element to the new\n * one. See the {@link guide/directive#template-expanding-directive\n * Directives Guide} for an example.\n *\n * There are very few scenarios where element replacement is required for the application function,\n * the main one being reusable custom components that are used within SVG contexts\n * (because SVG doesn't work with custom elements in the DOM tree).\n *\n * #### `transclude`\n * Extract the contents of the element where the directive appears and make it available to the directive.\n * The contents are compiled and provided to the directive as a **transclusion function**. See the\n * {@link $compile#transclusion Transclusion} section below.\n *\n * There are two kinds of transclusion depending upon whether you want to transclude just the contents of the\n * directive's element or the entire element:\n *\n * * `true` - transclude the content (i.e. the child nodes) of the directive's element.\n * * `'element'` - transclude the whole of the directive's element including any directives on this\n *   element that defined at a lower priority than this directive. When used, the `template`\n *   property is ignored.\n *\n *\n * #### `compile`\n *\n * ```js\n *   function compile(tElement, tAttrs, transclude) { ... }\n * ```\n *\n * The compile function deals with transforming the template DOM. Since most directives do not do\n * template transformation, it is not used often. The compile function takes the following arguments:\n *\n *   * `tElement` - template element - The element where the directive has been declared. It is\n *     safe to do template transformation on the element and child elements only.\n *\n *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared\n *     between all directive compile functions.\n *\n *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`\n *\n * <div class=\"alert alert-warning\">\n * **Note:** The template instance and the link instance may be different objects if the template has\n * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that\n * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration\n * should be done in a linking function rather than in a compile function.\n * </div>\n\n * <div class=\"alert alert-warning\">\n * **Note:** The compile function cannot handle directives that recursively use themselves in their\n * own templates or compile functions. Compiling these directives results in an infinite loop and\n * stack overflow errors.\n *\n * This can be avoided by manually using $compile in the postLink function to imperatively compile\n * a directive's template instead of relying on automatic template compilation via `template` or\n * `templateUrl` declaration or manual compilation inside the compile function.\n * </div>\n *\n * <div class=\"alert alert-danger\">\n * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it\n *   e.g. does not know about the right outer scope. Please use the transclude function that is passed\n *   to the link function instead.\n * </div>\n\n * A compile function can have a return value which can be either a function or an object.\n *\n * * returning a (post-link) function - is equivalent to registering the linking function via the\n *   `link` property of the config object when the compile function is empty.\n *\n * * returning an object with function(s) registered via `pre` and `post` properties - allows you to\n *   control when a linking function should be called during the linking phase. See info about\n *   pre-linking and post-linking functions below.\n *\n *\n * #### `link`\n * This property is used only if the `compile` property is not defined.\n *\n * ```js\n *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }\n * ```\n *\n * The link function is responsible for registering DOM listeners as well as updating the DOM. It is\n * executed after the template has been cloned. This is where most of the directive logic will be\n * put.\n *\n *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the\n *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.\n *\n *   * `iElement` - instance element - The element where the directive is to be used. It is safe to\n *     manipulate the children of the element only in `postLink` function since the children have\n *     already been linked.\n *\n *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared\n *     between all directive linking functions.\n *\n *   * `controller` - the directive's required controller instance(s) - Instances are shared\n *     among all directives, which allows the directives to use the controllers as a communication\n *     channel. The exact value depends on the directive's `require` property:\n *       * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one\n *       * `string`: the controller instance\n *       * `array`: array of controller instances\n *\n *     If a required controller cannot be found, and it is optional, the instance is `null`,\n *     otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown.\n *\n *     Note that you can also require the directive's own controller - it will be made available like\n *     any other controller.\n *\n *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.\n *     This is the same as the `$transclude`\n *     parameter of directive controllers, see there for details.\n *     `function([scope], cloneLinkingFn, futureParentElement)`.\n *\n * #### Pre-linking function\n *\n * Executed before the child elements are linked. Not safe to do DOM transformation since the\n * compiler linking function will fail to locate the correct elements for linking.\n *\n * #### Post-linking function\n *\n * Executed after the child elements are linked.\n *\n * Note that child elements that contain `templateUrl` directives will not have been compiled\n * and linked since they are waiting for their template to load asynchronously and their own\n * compilation and linking has been suspended until that occurs.\n *\n * It is safe to do DOM transformation in the post-linking function on elements that are not waiting\n * for their async templates to be resolved.\n *\n *\n * ### Transclusion\n *\n * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and\n * copying them to another part of the DOM, while maintaining their connection to the original AngularJS\n * scope from where they were taken.\n *\n * Transclusion is used (often with {@link ngTransclude}) to insert the\n * original contents of a directive's element into a specified place in the template of the directive.\n * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded\n * content has access to the properties on the scope from which it was taken, even if the directive\n * has isolated scope.\n * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.\n *\n * This makes it possible for the widget to have private state for its template, while the transcluded\n * content has access to its originating scope.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** When testing an element transclude directive you must not place the directive at the root of the\n * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives\n * Testing Transclusion Directives}.\n * </div>\n *\n * #### Transclusion Functions\n *\n * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion\n * function** to the directive's `link` function and `controller`. This transclusion function is a special\n * **linking function** that will return the compiled contents linked to a new transclusion scope.\n *\n * <div class=\"alert alert-info\">\n * If you are just using {@link ngTransclude} then you don't need to worry about this function, since\n * ngTransclude will deal with it for us.\n * </div>\n *\n * If you want to manually control the insertion and removal of the transcluded content in your directive\n * then you must use this transclude function. When you call a transclude function it returns a a jqLite/JQuery\n * object that contains the compiled DOM, which is linked to the correct transclusion scope.\n *\n * When you call a transclusion function you can pass in a **clone attach function**. This function accepts\n * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded\n * content and the `scope` is the newly created transclusion scope, to which the clone is bound.\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a translude function\n * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.\n * </div>\n *\n * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone\n * attach function**:\n *\n * ```js\n * var transcludedContent, transclusionScope;\n *\n * $transclude(function(clone, scope) {\n *   element.append(clone);\n *   transcludedContent = clone;\n *   transclusionScope = scope;\n * });\n * ```\n *\n * Later, if you want to remove the transcluded content from your DOM then you should also destroy the\n * associated transclusion scope:\n *\n * ```js\n * transcludedContent.remove();\n * transclusionScope.$destroy();\n * ```\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: if you intend to add and remove transcluded content manually in your directive\n * (by calling the transclude function to get the DOM and calling `element.remove()` to remove it),\n * then you are also responsible for calling `$destroy` on the transclusion scope.\n * </div>\n *\n * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}\n * automatically destroy their transluded clones as necessary so you do not need to worry about this if\n * you are simply using {@link ngTransclude} to inject the transclusion into your directive.\n *\n *\n * #### Transclusion Scopes\n *\n * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion\n * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed\n * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it\n * was taken.\n *\n * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look\n * like this:\n *\n * ```html\n * <div ng-app>\n *   <div isolate>\n *     <div transclusion>\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * The `$parent` scope hierarchy will look like this:\n *\n   ```\n   - $rootScope\n     - isolate\n       - transclusion\n   ```\n *\n * but the scopes will inherit prototypically from different scopes to their `$parent`.\n *\n   ```\n   - $rootScope\n     - transclusion\n   - isolate\n   ```\n *\n *\n * ### Attributes\n *\n * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the\n * `link()` or `compile()` functions. It has a variety of uses.\n *\n * * *Accessing normalized attribute names:* Directives like 'ngBind' can be expressed in many ways:\n *   'ng:bind', `data-ng-bind`, or 'x-ng-bind'. The attributes object allows for normalized access\n *   to the attributes.\n *\n * * *Directive inter-communication:* All directives share the same instance of the attributes\n *   object which allows the directives to use the attributes object as inter directive\n *   communication.\n *\n * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object\n *   allowing other directives to read the interpolated value.\n *\n * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes\n *   that contain interpolation (e.g. `src=\"{{bar}}\"`). Not only is this very efficient but it's also\n *   the only way to easily get the actual value because during the linking phase the interpolation\n *   hasn't been evaluated yet and so the value is at this time set to `undefined`.\n *\n * ```js\n * function linkingFn(scope, elm, attrs, ctrl) {\n *   // get the attribute value\n *   console.log(attrs.ngModel);\n *\n *   // change the attribute\n *   attrs.$set('ngModel', 'new value');\n *\n *   // observe changes to interpolated attribute\n *   attrs.$observe('ngModel', function(value) {\n *     console.log('ngModel has changed value to ' + value);\n *   });\n * }\n * ```\n *\n * ## Example\n *\n * <div class=\"alert alert-warning\">\n * **Note**: Typically directives are registered with `module.directive`. The example below is\n * to illustrate how `$compile` works.\n * </div>\n *\n <example module=\"compileExample\">\n   <file name=\"index.html\">\n    <script>\n      angular.module('compileExample', [], function($compileProvider) {\n        // configure new 'compile' directive by passing a directive\n        // factory function. The factory function injects the '$compile'\n        $compileProvider.directive('compile', function($compile) {\n          // directive factory creates a link function\n          return function(scope, element, attrs) {\n            scope.$watch(\n              function(scope) {\n                 // watch the 'compile' expression for changes\n                return scope.$eval(attrs.compile);\n              },\n              function(value) {\n                // when the 'compile' expression changes\n                // assign it into the current DOM\n                element.html(value);\n\n                // compile the new DOM and link it to the current\n                // scope.\n                // NOTE: we only compile .childNodes so that\n                // we don't get into infinite loop compiling ourselves\n                $compile(element.contents())(scope);\n              }\n            );\n          };\n        });\n      })\n      .controller('GreeterController', ['$scope', function($scope) {\n        $scope.name = 'Angular';\n        $scope.html = 'Hello {{name}}';\n      }]);\n    </script>\n    <div ng-controller=\"GreeterController\">\n      <input ng-model=\"name\"> <br/>\n      <textarea ng-model=\"html\"></textarea> <br/>\n      <div compile=\"html\"></div>\n    </div>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n     it('should auto compile', function() {\n       var textarea = $('textarea');\n       var output = $('div[compile]');\n       // The initial state reads 'Hello Angular'.\n       expect(output.getText()).toBe('Hello Angular');\n       textarea.clear();\n       textarea.sendKeys('{{name}}!');\n       expect(output.getText()).toBe('Angular!');\n     });\n   </file>\n </example>\n\n *\n *\n * @param {string|DOMElement} element Element or HTML string to compile into a template function.\n * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED.\n *\n * <div class=\"alert alert-danger\">\n * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it\n *   e.g. will not use the right outer scope. Please pass the transclude function as a\n *   `parentBoundTranscludeFn` to the link function instead.\n * </div>\n *\n * @param {number} maxPriority only apply directives lower than given priority (Only effects the\n *                 root element(s), not their children)\n * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template\n * (a DOM element/tree) to a scope. Where:\n *\n *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.\n *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the\n *  `template` and call the `cloneAttachFn` function allowing the caller to attach the\n *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is\n *  called as: <br/> `cloneAttachFn(clonedElement, scope)` where:\n *\n *      * `clonedElement` - is a clone of the original `element` passed into the compiler.\n *      * `scope` - is the current scope with which the linking function is working with.\n *\n *  * `options` - An optional object hash with linking options. If `options` is provided, then the following\n *  keys may be used to control linking behavior:\n *\n *      * `parentBoundTranscludeFn` - the transclude function made available to\n *        directives; if given, it will be passed through to the link functions of\n *        directives found in `element` during compilation.\n *      * `transcludeControllers` - an object hash with keys that map controller names\n *        to a hash with the key `instance`, which maps to the controller instance;\n *        if given, it will make the controllers available to directives on the compileNode:\n *        ```\n *        {\n *          parent: {\n *            instance: parentControllerInstance\n *          }\n *        }\n *        ```\n *      * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add\n *        the cloned elements; only needed for transcludes that are allowed to contain non html\n *        elements (e.g. SVG elements). See also the directive.controller property.\n *\n * Calling the linking function returns the element of the template. It is either the original\n * element passed in, or the clone of the element if the `cloneAttachFn` is provided.\n *\n * After linking the view is not updated until after a call to $digest which typically is done by\n * Angular automatically.\n *\n * If you need access to the bound view, there are two ways to do it:\n *\n * - If you are not asking the linking function to clone the template, create the DOM element(s)\n *   before you send them to the compiler and keep this reference around.\n *   ```js\n *     var element = $compile('<p>{{total}}</p>')(scope);\n *   ```\n *\n * - if on the other hand, you need the element to be cloned, the view reference from the original\n *   example would not point to the clone, but rather to the original template that was cloned. In\n *   this case, you can access the clone via the cloneAttachFn:\n *   ```js\n *     var templateElement = angular.element('<p>{{total}}</p>'),\n *         scope = ....;\n *\n *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {\n *       //attach the clone to DOM document at the right place\n *     });\n *\n *     //now we have reference to the cloned DOM via `clonedElement`\n *   ```\n *\n *\n * For information on how the compiler works, see the\n * {@link guide/compiler Angular HTML Compiler} section of the Developer Guide.\n */\n\nvar $compileMinErr = minErr('$compile');\n\n/**\n * @ngdoc provider\n * @name $compileProvider\n *\n * @description\n */\n$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];\nfunction $CompileProvider($provide, $$sanitizeUriProvider) {\n  var hasDirectives = {},\n      Suffix = 'Directive',\n      COMMENT_DIRECTIVE_REGEXP = /^\\s*directive\\:\\s*([\\w\\-]+)\\s+(.*)$/,\n      CLASS_DIRECTIVE_REGEXP = /(([\\w\\-]+)(?:\\:([^;]+))?;?)/,\n      ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),\n      REQUIRE_PREFIX_REGEXP = /^(?:(\\^\\^?)?(\\?)?(\\^\\^?)?)?/;\n\n  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes\n  // The assumption is that future DOM event attribute names will begin with\n  // 'on' and be composed of only English letters.\n  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;\n  var bindingCache = createMap();\n\n  function parseIsolateBindings(scope, directiveName, isController) {\n    var LOCAL_REGEXP = /^\\s*([@&]|=(\\*?))(\\??)\\s*(\\w*)\\s*$/;\n\n    var bindings = createMap();\n\n    forEach(scope, function(definition, scopeName) {\n      if (definition in bindingCache) {\n        bindings[scopeName] = bindingCache[definition];\n        return;\n      }\n      var match = definition.match(LOCAL_REGEXP);\n\n      if (!match) {\n        throw $compileMinErr('iscp',\n            \"Invalid {3} for directive '{0}'.\" +\n            \" Definition: {... {1}: '{2}' ...}\",\n            directiveName, scopeName, definition,\n            (isController ? \"controller bindings definition\" :\n            \"isolate scope definition\"));\n      }\n\n      bindings[scopeName] = {\n        mode: match[1][0],\n        collection: match[2] === '*',\n        optional: match[3] === '?',\n        attrName: match[4] || scopeName\n      };\n      if (match[4]) {\n        bindingCache[definition] = bindings[scopeName];\n      }\n    });\n\n    return bindings;\n  }\n\n  function parseDirectiveBindings(directive, directiveName) {\n    var bindings = {\n      isolateScope: null,\n      bindToController: null\n    };\n    if (isObject(directive.scope)) {\n      if (directive.bindToController === true) {\n        bindings.bindToController = parseIsolateBindings(directive.scope,\n                                                         directiveName, true);\n        bindings.isolateScope = {};\n      } else {\n        bindings.isolateScope = parseIsolateBindings(directive.scope,\n                                                     directiveName, false);\n      }\n    }\n    if (isObject(directive.bindToController)) {\n      bindings.bindToController =\n          parseIsolateBindings(directive.bindToController, directiveName, true);\n    }\n    if (isObject(bindings.bindToController)) {\n      var controller = directive.controller;\n      var controllerAs = directive.controllerAs;\n      if (!controller) {\n        // There is no controller, there may or may not be a controllerAs property\n        throw $compileMinErr('noctrl',\n              \"Cannot bind to controller without directive '{0}'s controller.\",\n              directiveName);\n      } else if (!identifierForController(controller, controllerAs)) {\n        // There is a controller, but no identifier or controllerAs property\n        throw $compileMinErr('noident',\n              \"Cannot bind to controller without identifier for directive '{0}'.\",\n              directiveName);\n      }\n    }\n    return bindings;\n  }\n\n  function assertValidDirectiveName(name) {\n    var letter = name.charAt(0);\n    if (!letter || letter !== lowercase(letter)) {\n      throw $compileMinErr('baddir', \"Directive name '{0}' is invalid. The first character must be a lowercase letter\", name);\n    }\n    if (name !== name.trim()) {\n      throw $compileMinErr('baddir',\n            \"Directive name '{0}' is invalid. The name should not contain leading or trailing whitespaces\",\n            name);\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#directive\n   * @kind function\n   *\n   * @description\n   * Register a new directive with the compiler.\n   *\n   * @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which\n   *    will match as <code>ng-bind</code>), or an object map of directives where the keys are the\n   *    names and the values are the factories.\n   * @param {Function|Array} directiveFactory An injectable directive factory function. See\n   *    {@link guide/directive} for more info.\n   * @returns {ng.$compileProvider} Self for chaining.\n   */\n   this.directive = function registerDirective(name, directiveFactory) {\n    assertNotHasOwnProperty(name, 'directive');\n    if (isString(name)) {\n      assertValidDirectiveName(name);\n      assertArg(directiveFactory, 'directiveFactory');\n      if (!hasDirectives.hasOwnProperty(name)) {\n        hasDirectives[name] = [];\n        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',\n          function($injector, $exceptionHandler) {\n            var directives = [];\n            forEach(hasDirectives[name], function(directiveFactory, index) {\n              try {\n                var directive = $injector.invoke(directiveFactory);\n                if (isFunction(directive)) {\n                  directive = { compile: valueFn(directive) };\n                } else if (!directive.compile && directive.link) {\n                  directive.compile = valueFn(directive.link);\n                }\n                directive.priority = directive.priority || 0;\n                directive.index = index;\n                directive.name = directive.name || name;\n                directive.require = directive.require || (directive.controller && directive.name);\n                directive.restrict = directive.restrict || 'EA';\n                directive.$$moduleName = directiveFactory.$$moduleName;\n                directives.push(directive);\n              } catch (e) {\n                $exceptionHandler(e);\n              }\n            });\n            return directives;\n          }]);\n      }\n      hasDirectives[name].push(directiveFactory);\n    } else {\n      forEach(name, reverseParams(registerDirective));\n    }\n    return this;\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at preventing XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.aHrefSanitizationWhitelist();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#debugInfoEnabled\n   *\n   * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the\n   * current debugInfoEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable various debug runtime information in the compiler such as adding\n   * binding information and a reference to the current scope on to DOM elements.\n   * If enabled, the compiler will add the following to DOM elements that have been bound to the scope\n   * * `ng-binding` CSS class\n   * * `$binding` data property containing an array of the binding expressions\n   *\n   * You may want to disable this in production for a significant performance boost. See\n   * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.\n   *\n   * The default value is true.\n   */\n  var debugInfoEnabled = true;\n  this.debugInfoEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      debugInfoEnabled = enabled;\n      return this;\n    }\n    return debugInfoEnabled;\n  };\n\n  this.$get = [\n            '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',\n            '$controller', '$rootScope', '$sce', '$animate', '$$sanitizeUri',\n    function($injector,   $interpolate,   $exceptionHandler,   $templateRequest,   $parse,\n             $controller,   $rootScope,   $sce,   $animate,   $$sanitizeUri) {\n\n    var Attributes = function(element, attributesToCopy) {\n      if (attributesToCopy) {\n        var keys = Object.keys(attributesToCopy);\n        var i, l, key;\n\n        for (i = 0, l = keys.length; i < l; i++) {\n          key = keys[i];\n          this[key] = attributesToCopy[key];\n        }\n      } else {\n        this.$attr = {};\n      }\n\n      this.$$element = element;\n    };\n\n    Attributes.prototype = {\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$normalize\n       * @kind function\n       *\n       * @description\n       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or\n       * `data-`) to its normalized, camelCase form.\n       *\n       * Also there is special case for Moz prefix starting with upper case letter.\n       *\n       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n       *\n       * @param {string} name Name to normalize\n       */\n      $normalize: directiveNormalize,\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$addClass\n       * @kind function\n       *\n       * @description\n       * Adds the CSS class value specified by the classVal parameter to the element. If animations\n       * are enabled then an animation will be triggered for the class addition.\n       *\n       * @param {string} classVal The className value that will be added to the element\n       */\n      $addClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.addClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$removeClass\n       * @kind function\n       *\n       * @description\n       * Removes the CSS class value specified by the classVal parameter from the element. If\n       * animations are enabled then an animation will be triggered for the class removal.\n       *\n       * @param {string} classVal The className value that will be removed from the element\n       */\n      $removeClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.removeClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$updateClass\n       * @kind function\n       *\n       * @description\n       * Adds and removes the appropriate CSS class values to the element based on the difference\n       * between the new and old CSS class values (specified as newClasses and oldClasses).\n       *\n       * @param {string} newClasses The current CSS className value\n       * @param {string} oldClasses The former CSS className value\n       */\n      $updateClass: function(newClasses, oldClasses) {\n        var toAdd = tokenDifference(newClasses, oldClasses);\n        if (toAdd && toAdd.length) {\n          $animate.addClass(this.$$element, toAdd);\n        }\n\n        var toRemove = tokenDifference(oldClasses, newClasses);\n        if (toRemove && toRemove.length) {\n          $animate.removeClass(this.$$element, toRemove);\n        }\n      },\n\n      /**\n       * Set a normalized attribute on the element in a way such that all directives\n       * can share the attribute. This function properly handles boolean attributes.\n       * @param {string} key Normalized key. (ie ngAttribute)\n       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.\n       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.\n       *     Defaults to true.\n       * @param {string=} attrName Optional none normalized name. Defaults to key.\n       */\n      $set: function(key, value, writeAttr, attrName) {\n        // TODO: decide whether or not to throw an error if \"class\"\n        //is set through this function since it may cause $updateClass to\n        //become unstable.\n\n        var node = this.$$element[0],\n            booleanKey = getBooleanAttrName(node, key),\n            aliasedKey = getAliasedAttrName(key),\n            observer = key,\n            nodeName;\n\n        if (booleanKey) {\n          this.$$element.prop(key, value);\n          attrName = booleanKey;\n        } else if (aliasedKey) {\n          this[aliasedKey] = value;\n          observer = aliasedKey;\n        }\n\n        this[key] = value;\n\n        // translate normalized key to actual key\n        if (attrName) {\n          this.$attr[key] = attrName;\n        } else {\n          attrName = this.$attr[key];\n          if (!attrName) {\n            this.$attr[key] = attrName = snake_case(key, '-');\n          }\n        }\n\n        nodeName = nodeName_(this.$$element);\n\n        if ((nodeName === 'a' && key === 'href') ||\n            (nodeName === 'img' && key === 'src')) {\n          // sanitize a[href] and img[src] values\n          this[key] = value = $$sanitizeUri(value, key === 'src');\n        } else if (nodeName === 'img' && key === 'srcset' && isDefined(value)) {\n          // sanitize img[srcset] values\n          var result = \"\";\n\n          // first check if there are spaces because it's not the same pattern\n          var trimmedSrcset = trim(value);\n          //                (   999x   ,|   999w   ,|   ,|,   )\n          var srcPattern = /(\\s+\\d+x\\s*,|\\s+\\d+w\\s*,|\\s+,|,\\s+)/;\n          var pattern = /\\s/.test(trimmedSrcset) ? srcPattern : /(,)/;\n\n          // split srcset into tuple of uri and descriptor except for the last item\n          var rawUris = trimmedSrcset.split(pattern);\n\n          // for each tuples\n          var nbrUrisWith2parts = Math.floor(rawUris.length / 2);\n          for (var i = 0; i < nbrUrisWith2parts; i++) {\n            var innerIdx = i * 2;\n            // sanitize the uri\n            result += $$sanitizeUri(trim(rawUris[innerIdx]), true);\n            // add the descriptor\n            result += (\" \" + trim(rawUris[innerIdx + 1]));\n          }\n\n          // split the last item into uri and descriptor\n          var lastTuple = trim(rawUris[i * 2]).split(/\\s/);\n\n          // sanitize the last uri\n          result += $$sanitizeUri(trim(lastTuple[0]), true);\n\n          // and add the last descriptor if any\n          if (lastTuple.length === 2) {\n            result += (\" \" + trim(lastTuple[1]));\n          }\n          this[key] = value = result;\n        }\n\n        if (writeAttr !== false) {\n          if (value === null || isUndefined(value)) {\n            this.$$element.removeAttr(attrName);\n          } else {\n            this.$$element.attr(attrName, value);\n          }\n        }\n\n        // fire observers\n        var $$observers = this.$$observers;\n        $$observers && forEach($$observers[observer], function(fn) {\n          try {\n            fn(value);\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        });\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$observe\n       * @kind function\n       *\n       * @description\n       * Observes an interpolated attribute.\n       *\n       * The observer function will be invoked once during the next `$digest` following\n       * compilation. The observer is then invoked whenever the interpolated value\n       * changes.\n       *\n       * @param {string} key Normalized key. (ie ngAttribute) .\n       * @param {function(interpolatedValue)} fn Function that will be called whenever\n                the interpolated value of the attribute changes.\n       *        See the {@link guide/interpolation#how-text-and-attribute-bindings-work Interpolation\n       *        guide} for more info.\n       * @returns {function()} Returns a deregistration function for this observer.\n       */\n      $observe: function(key, fn) {\n        var attrs = this,\n            $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),\n            listeners = ($$observers[key] || ($$observers[key] = []));\n\n        listeners.push(fn);\n        $rootScope.$evalAsync(function() {\n          if (!listeners.$$inter && attrs.hasOwnProperty(key) && !isUndefined(attrs[key])) {\n            // no one registered attribute interpolation function, so lets call it manually\n            fn(attrs[key]);\n          }\n        });\n\n        return function() {\n          arrayRemove(listeners, fn);\n        };\n      }\n    };\n\n\n    function safeAddClass($element, className) {\n      try {\n        $element.addClass(className);\n      } catch (e) {\n        // ignore, since it means that we are trying to set class on\n        // SVG element, where class name is read-only.\n      }\n    }\n\n\n    var startSymbol = $interpolate.startSymbol(),\n        endSymbol = $interpolate.endSymbol(),\n        denormalizeTemplate = (startSymbol == '{{' && endSymbol  == '}}')\n            ? identity\n            : function denormalizeTemplate(template) {\n              return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n        },\n        NG_ATTR_BINDING = /^ngAttr[A-Z]/;\n    var MULTI_ELEMENT_DIR_RE = /^(.+)Start$/;\n\n    compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {\n      var bindings = $element.data('$binding') || [];\n\n      if (isArray(binding)) {\n        bindings = bindings.concat(binding);\n      } else {\n        bindings.push(binding);\n      }\n\n      $element.data('$binding', bindings);\n    } : noop;\n\n    compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {\n      safeAddClass($element, 'ng-binding');\n    } : noop;\n\n    compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {\n      var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';\n      $element.data(dataName, scope);\n    } : noop;\n\n    compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {\n      safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');\n    } : noop;\n\n    return compile;\n\n    //================================\n\n    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,\n                        previousCompileContext) {\n      if (!($compileNodes instanceof jqLite)) {\n        // jquery always rewraps, whereas we need to preserve the original selector so that we can\n        // modify it.\n        $compileNodes = jqLite($compileNodes);\n      }\n\n      var NOT_EMPTY = /\\S+/;\n\n      // We can not compile top level text elements since text nodes can be merged and we will\n      // not be able to attach scope data to them, so we will wrap them in <span>\n      for (var i = 0, len = $compileNodes.length; i < len; i++) {\n        var domNode = $compileNodes[i];\n\n        if (domNode.nodeType === NODE_TYPE_TEXT && domNode.nodeValue.match(NOT_EMPTY) /* non-empty */) {\n          jqLiteWrapNode(domNode, $compileNodes[i] = document.createElement('span'));\n        }\n      }\n\n      var compositeLinkFn =\n              compileNodes($compileNodes, transcludeFn, $compileNodes,\n                           maxPriority, ignoreDirective, previousCompileContext);\n      compile.$$addScopeClass($compileNodes);\n      var namespace = null;\n      return function publicLinkFn(scope, cloneConnectFn, options) {\n        assertArg(scope, 'scope');\n\n        if (previousCompileContext && previousCompileContext.needsNewScope) {\n          // A parent directive did a replace and a directive on this element asked\n          // for transclusion, which caused us to lose a layer of element on which\n          // we could hold the new transclusion scope, so we will create it manually\n          // here.\n          scope = scope.$parent.$new();\n        }\n\n        options = options || {};\n        var parentBoundTranscludeFn = options.parentBoundTranscludeFn,\n          transcludeControllers = options.transcludeControllers,\n          futureParentElement = options.futureParentElement;\n\n        // When `parentBoundTranscludeFn` is passed, it is a\n        // `controllersBoundTransclude` function (it was previously passed\n        // as `transclude` to directive.link) so we must unwrap it to get\n        // its `boundTranscludeFn`\n        if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) {\n          parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude;\n        }\n\n        if (!namespace) {\n          namespace = detectNamespaceForChildElements(futureParentElement);\n        }\n        var $linkNode;\n        if (namespace !== 'html') {\n          // When using a directive with replace:true and templateUrl the $compileNodes\n          // (or a child element inside of them)\n          // might change, so we need to recreate the namespace adapted compileNodes\n          // for call to the link function.\n          // Note: This will already clone the nodes...\n          $linkNode = jqLite(\n            wrapTemplate(namespace, jqLite('<div>').append($compileNodes).html())\n          );\n        } else if (cloneConnectFn) {\n          // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n          // and sometimes changes the structure of the DOM.\n          $linkNode = JQLitePrototype.clone.call($compileNodes);\n        } else {\n          $linkNode = $compileNodes;\n        }\n\n        if (transcludeControllers) {\n          for (var controllerName in transcludeControllers) {\n            $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);\n          }\n        }\n\n        compile.$$addScopeInfo($linkNode, scope);\n\n        if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n        return $linkNode;\n      };\n    }\n\n    function detectNamespaceForChildElements(parentElement) {\n      // TODO: Make this detect MathML as well...\n      var node = parentElement && parentElement[0];\n      if (!node) {\n        return 'html';\n      } else {\n        return nodeName_(node) !== 'foreignobject' && node.toString().match(/SVG/) ? 'svg' : 'html';\n      }\n    }\n\n    /**\n     * Compile function matches each node in nodeList against the directives. Once all directives\n     * for a particular node are collected their compile functions are executed. The compile\n     * functions return values - the linking functions - are combined into a composite linking\n     * function, which is the a linking function for the node.\n     *\n     * @param {NodeList} nodeList an array of nodes or NodeList to compile\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *        scope argument is auto-generated to the new child of the transcluded parent scope.\n     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n     *        the rootElement must be set the jqLite collection of the compile root. This is\n     *        needed so that the jqLite collection items can be replaced with widgets.\n     * @param {number=} maxPriority Max directive priority.\n     * @returns {Function} A composite linking function of all of the matched directives or null.\n     */\n    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n                            previousCompileContext) {\n      var linkFns = [],\n          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;\n\n      for (var i = 0; i < nodeList.length; i++) {\n        attrs = new Attributes();\n\n        // we must always refer to nodeList[i] since the nodes can be replaced underneath us.\n        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n                                        ignoreDirective);\n\n        nodeLinkFn = (directives.length)\n            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n                                      null, [], [], previousCompileContext)\n            : null;\n\n        if (nodeLinkFn && nodeLinkFn.scope) {\n          compile.$$addScopeClass(attrs.$$element);\n        }\n\n        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n                      !(childNodes = nodeList[i].childNodes) ||\n                      !childNodes.length)\n            ? null\n            : compileNodes(childNodes,\n                 nodeLinkFn ? (\n                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n                     && nodeLinkFn.transclude) : transcludeFn);\n\n        if (nodeLinkFn || childLinkFn) {\n          linkFns.push(i, nodeLinkFn, childLinkFn);\n          linkFnFound = true;\n          nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;\n        }\n\n        //use the previous context only for the first element in the virtual group\n        previousCompileContext = null;\n      }\n\n      // return a linking function if we have found anything, null otherwise\n      return linkFnFound ? compositeLinkFn : null;\n\n      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n        var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;\n        var stableNodeList;\n\n\n        if (nodeLinkFnFound) {\n          // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our\n          // offsets don't get screwed up\n          var nodeListLength = nodeList.length;\n          stableNodeList = new Array(nodeListLength);\n\n          // create a sparse array by only copying the elements which have a linkFn\n          for (i = 0; i < linkFns.length; i+=3) {\n            idx = linkFns[i];\n            stableNodeList[idx] = nodeList[idx];\n          }\n        } else {\n          stableNodeList = nodeList;\n        }\n\n        for (i = 0, ii = linkFns.length; i < ii;) {\n          node = stableNodeList[linkFns[i++]];\n          nodeLinkFn = linkFns[i++];\n          childLinkFn = linkFns[i++];\n\n          if (nodeLinkFn) {\n            if (nodeLinkFn.scope) {\n              childScope = scope.$new();\n              compile.$$addScopeInfo(jqLite(node), childScope);\n            } else {\n              childScope = scope;\n            }\n\n            if (nodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(\n                  scope, nodeLinkFn.transclude, parentBoundTranscludeFn);\n\n            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n              childBoundTranscludeFn = parentBoundTranscludeFn;\n\n            } else if (!parentBoundTranscludeFn && transcludeFn) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n            } else {\n              childBoundTranscludeFn = null;\n            }\n\n            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n          } else if (childLinkFn) {\n            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n          }\n        }\n      }\n    }\n\n    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) {\n\n      var boundTranscludeFn = function(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {\n\n        if (!transcludedScope) {\n          transcludedScope = scope.$new(false, containingScope);\n          transcludedScope.$$transcluded = true;\n        }\n\n        return transcludeFn(transcludedScope, cloneFn, {\n          parentBoundTranscludeFn: previousBoundTranscludeFn,\n          transcludeControllers: controllers,\n          futureParentElement: futureParentElement\n        });\n      };\n\n      return boundTranscludeFn;\n    }\n\n    /**\n     * Looks for directives on the given node and adds them to the directive collection which is\n     * sorted.\n     *\n     * @param node Node to search.\n     * @param directives An array to which the directives are added to. This array is sorted before\n     *        the function returns.\n     * @param attrs The shared attrs object which is used to populate the normalized attributes.\n     * @param {number=} maxPriority Max directive priority.\n     */\n    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      var nodeType = node.nodeType,\n          attrsMap = attrs.$attr,\n          match,\n          nodeName,\n          className;\n\n      switch (nodeType) {\n        case NODE_TYPE_ELEMENT: /* Element */\n\n          nodeName = nodeName_(node);\n\n          // use the node name: <directive>\n          addDirective(directives,\n              directiveNormalize(nodeName), 'E', maxPriority, ignoreDirective);\n\n          // iterate over the attributes\n          for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,\n                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n            var attrStartName = false;\n            var attrEndName = false;\n\n            attr = nAttrs[j];\n            name = attr.name;\n            value = trim(attr.value);\n\n            // support ngAttr attribute binding\n            ngAttrName = directiveNormalize(name);\n            if (isNgAttr = NG_ATTR_BINDING.test(ngAttrName)) {\n              name = name.replace(PREFIX_REGEXP, '')\n                .substr(8).replace(/_(.)/g, function(match, letter) {\n                  return letter.toUpperCase();\n                });\n            }\n\n            var multiElementMatch = ngAttrName.match(MULTI_ELEMENT_DIR_RE);\n            if (multiElementMatch && directiveIsMultiElement(multiElementMatch[1])) {\n              attrStartName = name;\n              attrEndName = name.substr(0, name.length - 5) + 'end';\n              name = name.substr(0, name.length - 6);\n            }\n\n            nName = directiveNormalize(name.toLowerCase());\n            attrsMap[nName] = name;\n            if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n                attrs[nName] = value;\n                if (getBooleanAttrName(node, nName)) {\n                  attrs[nName] = true; // presence means true\n                }\n            }\n            addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);\n            addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n                          attrEndName);\n          }\n\n          if (nodeName === 'input' && node.getAttribute('type') === 'hidden') {\n            // Hidden input elements can have strange behaviour when navigating back to the page\n            // This tells the browser not to try to cache and reinstate previous values\n            node.setAttribute('autocomplete', 'off');\n          }\n\n          // use class as directive\n          className = node.className;\n          if (isObject(className)) {\n              // Maybe SVGAnimatedString\n              className = className.animVal;\n          }\n          if (isString(className) && className !== '') {\n            while (match = CLASS_DIRECTIVE_REGEXP.exec(className)) {\n              nName = directiveNormalize(match[2]);\n              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[3]);\n              }\n              className = className.substr(match.index + match[0].length);\n            }\n          }\n          break;\n        case NODE_TYPE_TEXT: /* Text Node */\n          if (msie === 11) {\n            // Workaround for #11781\n            while (node.parentNode && node.nextSibling && node.nextSibling.nodeType === NODE_TYPE_TEXT) {\n              node.nodeValue = node.nodeValue + node.nextSibling.nodeValue;\n              node.parentNode.removeChild(node.nextSibling);\n            }\n          }\n          addTextInterpolateDirective(directives, node.nodeValue);\n          break;\n        case NODE_TYPE_COMMENT: /* Comment */\n          try {\n            match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n            if (match) {\n              nName = directiveNormalize(match[1]);\n              if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[2]);\n              }\n            }\n          } catch (e) {\n            // turns out that under some circumstances IE9 throws errors when one attempts to read\n            // comment's node value.\n            // Just ignore it and continue. (Can't seem to reproduce in test case.)\n          }\n          break;\n      }\n\n      directives.sort(byPriority);\n      return directives;\n    }\n\n    /**\n     * Given a node with an directive-start it collects all of the siblings until it finds\n     * directive-end.\n     * @param node\n     * @param attrStart\n     * @param attrEnd\n     * @returns {*}\n     */\n    function groupScan(node, attrStart, attrEnd) {\n      var nodes = [];\n      var depth = 0;\n      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n        do {\n          if (!node) {\n            throw $compileMinErr('uterdir',\n                      \"Unterminated attribute, found '{0}' but no matching '{1}' found.\",\n                      attrStart, attrEnd);\n          }\n          if (node.nodeType == NODE_TYPE_ELEMENT) {\n            if (node.hasAttribute(attrStart)) depth++;\n            if (node.hasAttribute(attrEnd)) depth--;\n          }\n          nodes.push(node);\n          node = node.nextSibling;\n        } while (depth > 0);\n      } else {\n        nodes.push(node);\n      }\n\n      return jqLite(nodes);\n    }\n\n    /**\n     * Wrapper for linking function which converts normal linking function into a grouped\n     * linking function.\n     * @param linkFn\n     * @param attrStart\n     * @param attrEnd\n     * @returns {Function}\n     */\n    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n      return function(scope, element, attrs, controllers, transcludeFn) {\n        element = groupScan(element[0], attrStart, attrEnd);\n        return linkFn(scope, element, attrs, controllers, transcludeFn);\n      };\n    }\n\n    /**\n     * Once the directives have been collected, their compile functions are executed. This method\n     * is responsible for inlining directive templates as well as terminating the application\n     * of the directives if the terminal directive has been reached.\n     *\n     * @param {Array} directives Array of collected directives to execute their compile function.\n     *        this needs to be pre-sorted by priority order.\n     * @param {Node} compileNode The raw DOM node to apply the compile functions to\n     * @param {Object} templateAttrs The shared attribute function\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *                                                  scope argument is auto-generated to the new\n     *                                                  child of the transcluded parent scope.\n     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n     *                              argument has the root jqLite array so that we can replace nodes\n     *                              on it.\n     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n     *                                           compiling the transclusion.\n     * @param {Array.<Function>} preLinkFns\n     * @param {Array.<Function>} postLinkFns\n     * @param {Object} previousCompileContext Context used for previous compilation of the current\n     *                                        node\n     * @returns {Function} linkFn\n     */\n    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n                                   previousCompileContext) {\n      previousCompileContext = previousCompileContext || {};\n\n      var terminalPriority = -Number.MAX_VALUE,\n          newScopeDirective = previousCompileContext.newScopeDirective,\n          controllerDirectives = previousCompileContext.controllerDirectives,\n          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n          templateDirective = previousCompileContext.templateDirective,\n          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n          hasTranscludeDirective = false,\n          hasTemplate = false,\n          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n          $compileNode = templateAttrs.$$element = jqLite(compileNode),\n          directive,\n          directiveName,\n          $template,\n          replaceDirective = originalReplaceDirective,\n          childTranscludeFn = transcludeFn,\n          linkFn,\n          directiveValue;\n\n      // executes all directives on the current element\n      for (var i = 0, ii = directives.length; i < ii; i++) {\n        directive = directives[i];\n        var attrStart = directive.$$start;\n        var attrEnd = directive.$$end;\n\n        // collect multiblock sections\n        if (attrStart) {\n          $compileNode = groupScan(compileNode, attrStart, attrEnd);\n        }\n        $template = undefined;\n\n        if (terminalPriority > directive.priority) {\n          break; // prevent further processing of directives\n        }\n\n        if (directiveValue = directive.scope) {\n\n          // skip the check for directives with async templates, we'll check the derived sync\n          // directive when the template arrives\n          if (!directive.templateUrl) {\n            if (isObject(directiveValue)) {\n              // This directive is trying to add an isolated scope.\n              // Check that there is no scope of any kind already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,\n                                directive, $compileNode);\n              newIsolateScopeDirective = directive;\n            } else {\n              // This directive is trying to add a child scope.\n              // Check that there is no isolated scope already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n                                $compileNode);\n            }\n          }\n\n          newScopeDirective = newScopeDirective || directive;\n        }\n\n        directiveName = directive.name;\n\n        if (!directive.templateUrl && directive.controller) {\n          directiveValue = directive.controller;\n          controllerDirectives = controllerDirectives || createMap();\n          assertNoDuplicate(\"'\" + directiveName + \"' controller\",\n              controllerDirectives[directiveName], directive, $compileNode);\n          controllerDirectives[directiveName] = directive;\n        }\n\n        if (directiveValue = directive.transclude) {\n          hasTranscludeDirective = true;\n\n          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n          // This option should only be used by directives that know how to safely handle element transclusion,\n          // where the transcluded nodes are added or replaced after linking.\n          if (!directive.$$tlb) {\n            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n            nonTlbTranscludeDirective = directive;\n          }\n\n          if (directiveValue == 'element') {\n            hasElementTranscludeDirective = true;\n            terminalPriority = directive.priority;\n            $template = $compileNode;\n            $compileNode = templateAttrs.$$element =\n                jqLite(document.createComment(' ' + directiveName + ': ' +\n                                              templateAttrs[directiveName] + ' '));\n            compileNode = $compileNode[0];\n            replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n            childTranscludeFn = compile($template, transcludeFn, terminalPriority,\n                                        replaceDirective && replaceDirective.name, {\n                                          // Don't pass in:\n                                          // - controllerDirectives - otherwise we'll create duplicates controllers\n                                          // - newIsolateScopeDirective or templateDirective - combining templates with\n                                          //   element transclusion doesn't make sense.\n                                          //\n                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n                                          // on the same element more than once.\n                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective\n                                        });\n          } else {\n            $template = jqLite(jqLiteClone(compileNode)).contents();\n            $compileNode.empty(); // clear contents\n            childTranscludeFn = compile($template, transcludeFn, undefined,\n                undefined, { needsNewScope: directive.$$isolateScope || directive.$$newScope});\n          }\n        }\n\n        if (directive.template) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          directiveValue = (isFunction(directive.template))\n              ? directive.template($compileNode, templateAttrs)\n              : directive.template;\n\n          directiveValue = denormalizeTemplate(directiveValue);\n\n          if (directive.replace) {\n            replaceDirective = directive;\n            if (jqLiteIsTextNode(directiveValue)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  \"Template for directive '{0}' must have exactly one root element. {1}\",\n                  directiveName, '');\n            }\n\n            replaceWith(jqCollection, $compileNode, compileNode);\n\n            var newTemplateAttrs = {$attr: {}};\n\n            // combine directives from the original node and from the template:\n            // - take the array of directives for this element\n            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n            // - collect directives from the template and sort them by priority\n            // - combine directives as: processed + template + unprocessed\n            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n            if (newIsolateScopeDirective || newScopeDirective) {\n              // The original directive caused the current element to be replaced but this element\n              // also needs to have a new scope, so we need to tell the template directives\n              // that they would need to get their scope from further up, if they require transclusion\n              markDirectiveScope(templateDirectives, newIsolateScopeDirective, newScopeDirective);\n            }\n            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n            ii = directives.length;\n          } else {\n            $compileNode.html(directiveValue);\n          }\n        }\n\n        if (directive.templateUrl) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          if (directive.replace) {\n            replaceDirective = directive;\n          }\n\n          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n                controllerDirectives: controllerDirectives,\n                newScopeDirective: (newScopeDirective !== directive) && newScopeDirective,\n                newIsolateScopeDirective: newIsolateScopeDirective,\n                templateDirective: templateDirective,\n                nonTlbTranscludeDirective: nonTlbTranscludeDirective\n              });\n          ii = directives.length;\n        } else if (directive.compile) {\n          try {\n            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n            if (isFunction(linkFn)) {\n              addLinkFns(null, linkFn, attrStart, attrEnd);\n            } else if (linkFn) {\n              addLinkFns(linkFn.pre, linkFn.post, attrStart, attrEnd);\n            }\n          } catch (e) {\n            $exceptionHandler(e, startingTag($compileNode));\n          }\n        }\n\n        if (directive.terminal) {\n          nodeLinkFn.terminal = true;\n          terminalPriority = Math.max(terminalPriority, directive.priority);\n        }\n\n      }\n\n      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n      nodeLinkFn.templateOnThisElement = hasTemplate;\n      nodeLinkFn.transclude = childTranscludeFn;\n\n      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n      // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n      return nodeLinkFn;\n\n      ////////////////////\n\n      function addLinkFns(pre, post, attrStart, attrEnd) {\n        if (pre) {\n          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n          pre.require = directive.require;\n          pre.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n          }\n          preLinkFns.push(pre);\n        }\n        if (post) {\n          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n          post.require = directive.require;\n          post.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            post = cloneAndAnnotateFn(post, {isolateScope: true});\n          }\n          postLinkFns.push(post);\n        }\n      }\n\n\n      function getControllers(directiveName, require, $element, elementControllers) {\n        var value;\n\n        if (isString(require)) {\n          var match = require.match(REQUIRE_PREFIX_REGEXP);\n          var name = require.substring(match[0].length);\n          var inheritType = match[1] || match[3];\n          var optional = match[2] === '?';\n\n          //If only parents then start at the parent element\n          if (inheritType === '^^') {\n            $element = $element.parent();\n          //Otherwise attempt getting the controller from elementControllers in case\n          //the element is transcluded (and has no data) and to avoid .data if possible\n          } else {\n            value = elementControllers && elementControllers[name];\n            value = value && value.instance;\n          }\n\n          if (!value) {\n            var dataName = '$' + name + 'Controller';\n            value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName);\n          }\n\n          if (!value && !optional) {\n            throw $compileMinErr('ctreq',\n                \"Controller '{0}', required by directive '{1}', can't be found!\",\n                name, directiveName);\n          }\n        } else if (isArray(require)) {\n          value = [];\n          for (var i = 0, ii = require.length; i < ii; i++) {\n            value[i] = getControllers(directiveName, require[i], $element, elementControllers);\n          }\n        }\n\n        return value || null;\n      }\n\n      function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope) {\n        var elementControllers = createMap();\n        for (var controllerKey in controllerDirectives) {\n          var directive = controllerDirectives[controllerKey];\n          var locals = {\n            $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n            $element: $element,\n            $attrs: attrs,\n            $transclude: transcludeFn\n          };\n\n          var controller = directive.controller;\n          if (controller == '@') {\n            controller = attrs[directive.name];\n          }\n\n          var controllerInstance = $controller(controller, locals, true, directive.controllerAs);\n\n          // For directives with element transclusion the element is a comment.\n          // In this case .data will not attach any data.\n          // Instead, we save the controllers for the element in a local hash and attach to .data\n          // later, once we have the actual element.\n          elementControllers[directive.name] = controllerInstance;\n          $element.data('$' + directive.name + 'Controller', controllerInstance.instance);\n        }\n        return elementControllers;\n      }\n\n      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n        var linkFn, isolateScope, controllerScope, elementControllers, transcludeFn, $element,\n            attrs, removeScopeBindingWatches, removeControllerBindingWatches;\n\n        if (compileNode === linkNode) {\n          attrs = templateAttrs;\n          $element = templateAttrs.$$element;\n        } else {\n          $element = jqLite(linkNode);\n          attrs = new Attributes($element, templateAttrs);\n        }\n\n        controllerScope = scope;\n        if (newIsolateScopeDirective) {\n          isolateScope = scope.$new(true);\n        } else if (newScopeDirective) {\n          controllerScope = scope.$parent;\n        }\n\n        if (boundTranscludeFn) {\n          // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`\n          // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`\n          transcludeFn = controllersBoundTransclude;\n          transcludeFn.$$boundTransclude = boundTranscludeFn;\n        }\n\n        if (controllerDirectives) {\n          elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope);\n        }\n\n        if (newIsolateScopeDirective) {\n          // Initialize isolate scope bindings for new isolate scope directive.\n          compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||\n              templateDirective === newIsolateScopeDirective.$$originalDirective)));\n          compile.$$addScopeClass($element, true);\n          isolateScope.$$isolateBindings =\n              newIsolateScopeDirective.$$isolateBindings;\n          removeScopeBindingWatches = initializeDirectiveBindings(scope, attrs, isolateScope,\n                                        isolateScope.$$isolateBindings,\n                                        newIsolateScopeDirective);\n          if (removeScopeBindingWatches) {\n            isolateScope.$on('$destroy', removeScopeBindingWatches);\n          }\n        }\n\n        // Initialize bindToController bindings\n        for (var name in elementControllers) {\n          var controllerDirective = controllerDirectives[name];\n          var controller = elementControllers[name];\n          var bindings = controllerDirective.$$bindings.bindToController;\n\n          if (controller.identifier && bindings) {\n            removeControllerBindingWatches =\n              initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n          }\n\n          var controllerResult = controller();\n          if (controllerResult !== controller.instance) {\n            // If the controller constructor has a return value, overwrite the instance\n            // from setupControllers\n            controller.instance = controllerResult;\n            $element.data('$' + controllerDirective.name + 'Controller', controllerResult);\n            removeControllerBindingWatches && removeControllerBindingWatches();\n            removeControllerBindingWatches =\n              initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n          }\n        }\n\n        // PRELINKING\n        for (i = 0, ii = preLinkFns.length; i < ii; i++) {\n          linkFn = preLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // RECURSION\n        // We only pass the isolate scope, if the isolate directive has a template,\n        // otherwise the child elements do not belong to the isolate directive.\n        var scopeToChild = scope;\n        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n          scopeToChild = isolateScope;\n        }\n        childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n\n        // POSTLINKING\n        for (i = postLinkFns.length - 1; i >= 0; i--) {\n          linkFn = postLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // This is the function that is injected as `$transclude`.\n        // Note: all arguments are optional!\n        function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement) {\n          var transcludeControllers;\n\n          // No scope passed in:\n          if (!isScope(scope)) {\n            futureParentElement = cloneAttachFn;\n            cloneAttachFn = scope;\n            scope = undefined;\n          }\n\n          if (hasElementTranscludeDirective) {\n            transcludeControllers = elementControllers;\n          }\n          if (!futureParentElement) {\n            futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;\n          }\n          return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n        }\n      }\n    }\n\n    // Depending upon the context in which a directive finds itself it might need to have a new isolated\n    // or child scope created. For instance:\n    // * if the directive has been pulled into a template because another directive with a higher priority\n    // asked for element transclusion\n    // * if the directive itself asks for transclusion but it is at the root of a template and the original\n    // element was replaced. See https://github.com/angular/angular.js/issues/12936\n    function markDirectiveScope(directives, isolateScope, newScope) {\n      for (var j = 0, jj = directives.length; j < jj; j++) {\n        directives[j] = inherit(directives[j], {$$isolateScope: isolateScope, $$newScope: newScope});\n      }\n    }\n\n    /**\n     * looks up the directive and decorates it with exception handling and proper parameters. We\n     * call this the boundDirective.\n     *\n     * @param {string} name name of the directive to look up.\n     * @param {string} location The directive must be found in specific format.\n     *   String containing any of theses characters:\n     *\n     *   * `E`: element name\n     *   * `A': attribute\n     *   * `C`: class\n     *   * `M`: comment\n     * @returns {boolean} true if directive was added.\n     */\n    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n                          endAttrName) {\n      if (name === ignoreDirective) return null;\n      var match = null;\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          try {\n            directive = directives[i];\n            if ((isUndefined(maxPriority) || maxPriority > directive.priority) &&\n                 directive.restrict.indexOf(location) != -1) {\n              if (startAttrName) {\n                directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n              }\n              if (!directive.$$bindings) {\n                var bindings = directive.$$bindings =\n                    parseDirectiveBindings(directive, directive.name);\n                if (isObject(bindings.isolateScope)) {\n                  directive.$$isolateBindings = bindings.isolateScope;\n                }\n              }\n              tDirectives.push(directive);\n              match = directive;\n            }\n          } catch (e) { $exceptionHandler(e); }\n        }\n      }\n      return match;\n    }\n\n\n    /**\n     * looks up the directive and returns true if it is a multi-element directive,\n     * and therefore requires DOM nodes between -start and -end markers to be grouped\n     * together.\n     *\n     * @param {string} name name of the directive to look up.\n     * @returns true if directive was registered as multi-element.\n     */\n    function directiveIsMultiElement(name) {\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if (directive.multiElement) {\n            return true;\n          }\n        }\n      }\n      return false;\n    }\n\n    /**\n     * When the element is replaced with HTML template then the new attributes\n     * on the template need to be merged with the existing attributes in the DOM.\n     * The desired effect is to have both of the attributes present.\n     *\n     * @param {object} dst destination attributes (original DOM)\n     * @param {object} src source attributes (from the directive template)\n     */\n    function mergeTemplateAttributes(dst, src) {\n      var srcAttr = src.$attr,\n          dstAttr = dst.$attr,\n          $element = dst.$$element;\n\n      // reapply the old attributes to the new element\n      forEach(dst, function(value, key) {\n        if (key.charAt(0) != '$') {\n          if (src[key] && src[key] !== value) {\n            value += (key === 'style' ? ';' : ' ') + src[key];\n          }\n          dst.$set(key, value, true, srcAttr[key]);\n        }\n      });\n\n      // copy the new attributes on the old attrs object\n      forEach(src, function(value, key) {\n        if (key == 'class') {\n          safeAddClass($element, value);\n          dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;\n        } else if (key == 'style') {\n          $element.attr('style', $element.attr('style') + ';' + value);\n          dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value;\n          // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n          // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n          // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n        } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {\n          dst[key] = value;\n          dstAttr[key] = srcAttr[key];\n        }\n      });\n    }\n\n\n    function compileTemplateUrl(directives, $compileNode, tAttrs,\n        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n      var linkQueue = [],\n          afterTemplateNodeLinkFn,\n          afterTemplateChildLinkFn,\n          beforeTemplateCompileNode = $compileNode[0],\n          origAsyncDirective = directives.shift(),\n          derivedSyncDirective = inherit(origAsyncDirective, {\n            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n          }),\n          templateUrl = (isFunction(origAsyncDirective.templateUrl))\n              ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n              : origAsyncDirective.templateUrl,\n          templateNamespace = origAsyncDirective.templateNamespace;\n\n      $compileNode.empty();\n\n      $templateRequest(templateUrl)\n        .then(function(content) {\n          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n          content = denormalizeTemplate(content);\n\n          if (origAsyncDirective.replace) {\n            if (jqLiteIsTextNode(content)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(templateNamespace, trim(content)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  \"Template for directive '{0}' must have exactly one root element. {1}\",\n                  origAsyncDirective.name, templateUrl);\n            }\n\n            tempTemplateAttrs = {$attr: {}};\n            replaceWith($rootElement, $compileNode, compileNode);\n            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n            if (isObject(origAsyncDirective.scope)) {\n              // the original directive that caused the template to be loaded async required\n              // an isolate scope\n              markDirectiveScope(templateDirectives, true);\n            }\n            directives = templateDirectives.concat(directives);\n            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n          } else {\n            compileNode = beforeTemplateCompileNode;\n            $compileNode.html(content);\n          }\n\n          directives.unshift(derivedSyncDirective);\n\n          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n              previousCompileContext);\n          forEach($rootElement, function(node, i) {\n            if (node == compileNode) {\n              $rootElement[i] = $compileNode[0];\n            }\n          });\n          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n          while (linkQueue.length) {\n            var scope = linkQueue.shift(),\n                beforeTemplateLinkNode = linkQueue.shift(),\n                linkRootElement = linkQueue.shift(),\n                boundTranscludeFn = linkQueue.shift(),\n                linkNode = $compileNode[0];\n\n            if (scope.$$destroyed) continue;\n\n            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n              var oldClasses = beforeTemplateLinkNode.className;\n\n              if (!(previousCompileContext.hasElementTranscludeDirective &&\n                  origAsyncDirective.replace)) {\n                // it was cloned therefore we have to clone as well.\n                linkNode = jqLiteClone(compileNode);\n              }\n              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n              // Copy in CSS classes from original node\n              safeAddClass(jqLite(linkNode), oldClasses);\n            }\n            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n            } else {\n              childBoundTranscludeFn = boundTranscludeFn;\n            }\n            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n              childBoundTranscludeFn);\n          }\n          linkQueue = null;\n        });\n\n      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n        var childBoundTranscludeFn = boundTranscludeFn;\n        if (scope.$$destroyed) return;\n        if (linkQueue) {\n          linkQueue.push(scope,\n                         node,\n                         rootElement,\n                         childBoundTranscludeFn);\n        } else {\n          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n          }\n          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n        }\n      };\n    }\n\n\n    /**\n     * Sorting function for bound directives.\n     */\n    function byPriority(a, b) {\n      var diff = b.priority - a.priority;\n      if (diff !== 0) return diff;\n      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n      return a.index - b.index;\n    }\n\n    function assertNoDuplicate(what, previousDirective, directive, element) {\n\n      function wrapModuleNameIfDefined(moduleName) {\n        return moduleName ?\n          (' (module: ' + moduleName + ')') :\n          '';\n      }\n\n      if (previousDirective) {\n        throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}',\n            previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName),\n            directive.name, wrapModuleNameIfDefined(directive.$$moduleName), what, startingTag(element));\n      }\n    }\n\n\n    function addTextInterpolateDirective(directives, text) {\n      var interpolateFn = $interpolate(text, true);\n      if (interpolateFn) {\n        directives.push({\n          priority: 0,\n          compile: function textInterpolateCompileFn(templateNode) {\n            var templateNodeParent = templateNode.parent(),\n                hasCompileParent = !!templateNodeParent.length;\n\n            // When transcluding a template that has bindings in the root\n            // we don't have a parent and thus need to add the class during linking fn.\n            if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);\n\n            return function textInterpolateLinkFn(scope, node) {\n              var parent = node.parent();\n              if (!hasCompileParent) compile.$$addBindingClass(parent);\n              compile.$$addBindingInfo(parent, interpolateFn.expressions);\n              scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n                node[0].nodeValue = value;\n              });\n            };\n          }\n        });\n      }\n    }\n\n\n    function wrapTemplate(type, template) {\n      type = lowercase(type || 'html');\n      switch (type) {\n      case 'svg':\n      case 'math':\n        var wrapper = document.createElement('div');\n        wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>';\n        return wrapper.childNodes[0].childNodes;\n      default:\n        return template;\n      }\n    }\n\n\n    function getTrustedContext(node, attrNormalizedName) {\n      if (attrNormalizedName == \"srcdoc\") {\n        return $sce.HTML;\n      }\n      var tag = nodeName_(node);\n      // maction[xlink:href] can source SVG.  It's not limited to <maction>.\n      if (attrNormalizedName == \"xlinkHref\" ||\n          (tag == \"form\" && attrNormalizedName == \"action\") ||\n          (tag != \"img\" && (attrNormalizedName == \"src\" ||\n                            attrNormalizedName == \"ngSrc\"))) {\n        return $sce.RESOURCE_URL;\n      }\n    }\n\n\n    function addAttrInterpolateDirective(node, directives, value, name, allOrNothing) {\n      var trustedContext = getTrustedContext(node, name);\n      allOrNothing = ALL_OR_NOTHING_ATTRS[name] || allOrNothing;\n\n      var interpolateFn = $interpolate(value, true, trustedContext, allOrNothing);\n\n      // no interpolation found -> ignore\n      if (!interpolateFn) return;\n\n\n      if (name === \"multiple\" && nodeName_(node) === \"select\") {\n        throw $compileMinErr(\"selmulti\",\n            \"Binding to the 'multiple' attribute is not supported. Element: {0}\",\n            startingTag(node));\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function() {\n            return {\n              pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n                var $$observers = (attr.$$observers || (attr.$$observers = createMap()));\n\n                if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n                  throw $compileMinErr('nodomevents',\n                      \"Interpolations for HTML DOM event attributes are disallowed.  Please use the \" +\n                          \"ng- versions (such as ng-click instead of onclick) instead.\");\n                }\n\n                // If the attribute has changed since last $interpolate()ed\n                var newValue = attr[name];\n                if (newValue !== value) {\n                  // we need to interpolate again since the attribute value has been updated\n                  // (e.g. by another directive's compile function)\n                  // ensure unset/empty values make interpolateFn falsy\n                  interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);\n                  value = newValue;\n                }\n\n                // if attribute was updated so that there is no interpolation going on we don't want to\n                // register any observers\n                if (!interpolateFn) return;\n\n                // initialize attr object so that it's ready in case we need the value for isolate\n                // scope initialization, otherwise the value would not be available from isolate\n                // directive's linking fn during linking phase\n                attr[name] = interpolateFn(scope);\n\n                ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n                (attr.$$observers && attr.$$observers[name].$$scope || scope).\n                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n                    //special case for class attribute addition + removal\n                    //so that class changes can tap into the animation\n                    //hooks provided by the $animate service. Be sure to\n                    //skip animations when the first digest occurs (when\n                    //both the new and the old values are the same) since\n                    //the CSS classes are the non-interpolated values\n                    if (name === 'class' && newValue != oldValue) {\n                      attr.$updateClass(newValue, oldValue);\n                    } else {\n                      attr.$set(name, newValue);\n                    }\n                  });\n              }\n            };\n          }\n      });\n    }\n\n\n    /**\n     * This is a special jqLite.replaceWith, which can replace items which\n     * have no parents, provided that the containing jqLite collection is provided.\n     *\n     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n     *                               in the root of the tree.\n     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n     *                                  the shell, but replace its DOM node reference.\n     * @param {Node} newNode The new DOM node.\n     */\n    function replaceWith($rootElement, elementsToRemove, newNode) {\n      var firstElementToRemove = elementsToRemove[0],\n          removeCount = elementsToRemove.length,\n          parent = firstElementToRemove.parentNode,\n          i, ii;\n\n      if ($rootElement) {\n        for (i = 0, ii = $rootElement.length; i < ii; i++) {\n          if ($rootElement[i] == firstElementToRemove) {\n            $rootElement[i++] = newNode;\n            for (var j = i, j2 = j + removeCount - 1,\n                     jj = $rootElement.length;\n                 j < jj; j++, j2++) {\n              if (j2 < jj) {\n                $rootElement[j] = $rootElement[j2];\n              } else {\n                delete $rootElement[j];\n              }\n            }\n            $rootElement.length -= removeCount - 1;\n\n            // If the replaced element is also the jQuery .context then replace it\n            // .context is a deprecated jQuery api, so we should set it only when jQuery set it\n            // http://api.jquery.com/context/\n            if ($rootElement.context === firstElementToRemove) {\n              $rootElement.context = newNode;\n            }\n            break;\n          }\n        }\n      }\n\n      if (parent) {\n        parent.replaceChild(newNode, firstElementToRemove);\n      }\n\n      // TODO(perf): what's this document fragment for? is it needed? can we at least reuse it?\n      var fragment = document.createDocumentFragment();\n      fragment.appendChild(firstElementToRemove);\n\n      if (jqLite.hasData(firstElementToRemove)) {\n        // Copy over user data (that includes Angular's $scope etc.). Don't copy private\n        // data here because there's no public interface in jQuery to do that and copying over\n        // event listeners (which is the main use of private data) wouldn't work anyway.\n        jqLite.data(newNode, jqLite.data(firstElementToRemove));\n\n        // Remove data of the replaced element. We cannot just call .remove()\n        // on the element it since that would deallocate scope that is needed\n        // for the new node. Instead, remove the data \"manually\".\n        if (!jQuery) {\n          delete jqLite.cache[firstElementToRemove[jqLite.expando]];\n        } else {\n          // jQuery 2.x doesn't expose the data storage. Use jQuery.cleanData to clean up after\n          // the replaced element. The cleanData version monkey-patched by Angular would cause\n          // the scope to be trashed and we do need the very same scope to work with the new\n          // element. However, we cannot just cache the non-patched version and use it here as\n          // that would break if another library patches the method after Angular does (one\n          // example is jQuery UI). Instead, set a flag indicating scope destroying should be\n          // skipped this one time.\n          skipDestroyOnNextJQueryCleanData = true;\n          jQuery.cleanData([firstElementToRemove]);\n        }\n      }\n\n      for (var k = 1, kk = elementsToRemove.length; k < kk; k++) {\n        var element = elementsToRemove[k];\n        jqLite(element).remove(); // must do this way to clean up expando\n        fragment.appendChild(element);\n        delete elementsToRemove[k];\n      }\n\n      elementsToRemove[0] = newNode;\n      elementsToRemove.length = 1;\n    }\n\n\n    function cloneAndAnnotateFn(fn, annotation) {\n      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n    }\n\n\n    function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {\n      try {\n        linkFn(scope, $element, attrs, controllers, transcludeFn);\n      } catch (e) {\n        $exceptionHandler(e, startingTag($element));\n      }\n    }\n\n\n    // Set up $watches for isolate scope and controller bindings. This process\n    // only occurs for isolate scopes and new scopes with controllerAs.\n    function initializeDirectiveBindings(scope, attrs, destination, bindings, directive) {\n      var removeWatchCollection = [];\n      forEach(bindings, function(definition, scopeName) {\n        var attrName = definition.attrName,\n        optional = definition.optional,\n        mode = definition.mode, // @, =, or &\n        lastValue,\n        parentGet, parentSet, compare;\n\n        switch (mode) {\n\n          case '@':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              destination[scopeName] = attrs[attrName] = void 0;\n            }\n            attrs.$observe(attrName, function(value) {\n              if (isString(value)) {\n                destination[scopeName] = value;\n              }\n            });\n            attrs.$$observers[attrName].$$scope = scope;\n            lastValue = attrs[attrName];\n            if (isString(lastValue)) {\n              // If the attribute has been provided then we trigger an interpolation to ensure\n              // the value is there for use in the link fn\n              destination[scopeName] = $interpolate(lastValue)(scope);\n            } else if (isBoolean(lastValue)) {\n              // If the attributes is one of the BOOLEAN_ATTR then Angular will have converted\n              // the value to boolean rather than a string, so we special case this situation\n              destination[scopeName] = lastValue;\n            }\n            break;\n\n          case '=':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              attrs[attrName] = void 0;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            if (parentGet.literal) {\n              compare = equals;\n            } else {\n              compare = function(a, b) { return a === b || (a !== a && b !== b); };\n            }\n            parentSet = parentGet.assign || function() {\n              // reset the change, or we will throw this exception on every $digest\n              lastValue = destination[scopeName] = parentGet(scope);\n              throw $compileMinErr('nonassign',\n                  \"Expression '{0}' in attribute '{1}' used with directive '{2}' is non-assignable!\",\n                  attrs[attrName], attrName, directive.name);\n            };\n            lastValue = destination[scopeName] = parentGet(scope);\n            var parentValueWatch = function parentValueWatch(parentValue) {\n              if (!compare(parentValue, destination[scopeName])) {\n                // we are out of sync and need to copy\n                if (!compare(parentValue, lastValue)) {\n                  // parent changed and it has precedence\n                  destination[scopeName] = parentValue;\n                } else {\n                  // if the parent can be assigned then do so\n                  parentSet(scope, parentValue = destination[scopeName]);\n                }\n              }\n              return lastValue = parentValue;\n            };\n            parentValueWatch.$stateful = true;\n            var removeWatch;\n            if (definition.collection) {\n              removeWatch = scope.$watchCollection(attrs[attrName], parentValueWatch);\n            } else {\n              removeWatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);\n            }\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '&':\n            // Don't assign Object.prototype method to scope\n            parentGet = attrs.hasOwnProperty(attrName) ? $parse(attrs[attrName]) : noop;\n\n            // Don't assign noop to destination if expression is not valid\n            if (parentGet === noop && optional) break;\n\n            destination[scopeName] = function(locals) {\n              return parentGet(scope, locals);\n            };\n            break;\n        }\n      });\n\n      return removeWatchCollection.length && function removeWatches() {\n        for (var i = 0, ii = removeWatchCollection.length; i < ii; ++i) {\n          removeWatchCollection[i]();\n        }\n      };\n    }\n  }];\n}\n\nvar PREFIX_REGEXP = /^((?:x|data)[\\:\\-_])/i;\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n  return camelCase(name.replace(PREFIX_REGEXP, ''));\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in Angular:\n *\n * ```\n *    <span ng:bind=\"a\" ng-bind=\"a\" data-ng-bind=\"a\" x-ng-bind=\"a\">\n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n *          property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n  /* angular.Scope */ scope,\n  /* NodeList */ nodeList,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction directiveLinkingFn(\n  /* nodesetLinkingFn */ nodesetLinkingFn,\n  /* angular.Scope */ scope,\n  /* Node */ node,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction tokenDifference(str1, str2) {\n  var values = '',\n      tokens1 = str1.split(/\\s+/),\n      tokens2 = str2.split(/\\s+/);\n\n  outer:\n  for (var i = 0; i < tokens1.length; i++) {\n    var token = tokens1[i];\n    for (var j = 0; j < tokens2.length; j++) {\n      if (token == tokens2[j]) continue outer;\n    }\n    values += (values.length > 0 ? ' ' : '') + token;\n  }\n  return values;\n}\n\nfunction removeComments(jqNodes) {\n  jqNodes = jqLite(jqNodes);\n  var i = jqNodes.length;\n\n  if (i <= 1) {\n    return jqNodes;\n  }\n\n  while (i--) {\n    var node = jqNodes[i];\n    if (node.nodeType === NODE_TYPE_COMMENT) {\n      splice.call(jqNodes, i, 1);\n    }\n  }\n  return jqNodes;\n}\n\nvar $controllerMinErr = minErr('$controller');\n\n\nvar CNTRL_REG = /^(\\S+)(\\s+as\\s+([\\w$]+))?$/;\nfunction identifierForController(controller, ident) {\n  if (ident && isString(ident)) return ident;\n  if (isString(controller)) {\n    var match = CNTRL_REG.exec(controller);\n    if (match) return match[3];\n  }\n}\n\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @description\n * The {@link ng.$controller $controller service} is used by Angular to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n  var controllers = {},\n      globals = false;\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#register\n   * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n   *    the names and the values are the constructors.\n   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n   *    annotations in the array notation).\n   */\n  this.register = function(name, constructor) {\n    assertNotHasOwnProperty(name, 'controller');\n    if (isObject(name)) {\n      extend(controllers, name);\n    } else {\n      controllers[name] = constructor;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#allowGlobals\n   * @description If called, allows `$controller` to find controller constructors on `window`\n   */\n  this.allowGlobals = function() {\n    globals = true;\n  };\n\n\n  this.$get = ['$injector', '$window', function($injector, $window) {\n\n    /**\n     * @ngdoc service\n     * @name $controller\n     * @requires $injector\n     *\n     * @param {Function|string} constructor If called with a function then it's considered to be the\n     *    controller constructor function. Otherwise it's considered to be a string which is used\n     *    to retrieve the controller constructor using the following steps:\n     *\n     *    * check if a controller with given name is registered via `$controllerProvider`\n     *    * check if evaluating the string on the current scope returns a constructor\n     *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n     *      `window` object (not recommended)\n     *\n     *    The string can use the `controller as property` syntax, where the controller instance is published\n     *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n     *    to work correctly.\n     *\n     * @param {Object} locals Injection locals for Controller.\n     * @return {Object} Instance of given controller.\n     *\n     * @description\n     * `$controller` service is responsible for instantiating controllers.\n     *\n     * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n     */\n    return function(expression, locals, later, ident) {\n      // PRIVATE API:\n      //   param `later` --- indicates that the controller's constructor is invoked at a later time.\n      //                     If true, $controller will allocate the object with the correct\n      //                     prototype chain, but will not invoke the controller until a returned\n      //                     callback is invoked.\n      //   param `ident` --- An optional label which overrides the label parsed from the controller\n      //                     expression, if any.\n      var instance, match, constructor, identifier;\n      later = later === true;\n      if (ident && isString(ident)) {\n        identifier = ident;\n      }\n\n      if (isString(expression)) {\n        match = expression.match(CNTRL_REG);\n        if (!match) {\n          throw $controllerMinErr('ctrlfmt',\n            \"Badly formed controller string '{0}'. \" +\n            \"Must match `__name__ as __id__` or `__name__`.\", expression);\n        }\n        constructor = match[1],\n        identifier = identifier || match[3];\n        expression = controllers.hasOwnProperty(constructor)\n            ? controllers[constructor]\n            : getter(locals.$scope, constructor, true) ||\n                (globals ? getter($window, constructor, true) : undefined);\n\n        assertArgFn(expression, constructor, true);\n      }\n\n      if (later) {\n        // Instantiate controller later:\n        // This machinery is used to create an instance of the object before calling the\n        // controller's constructor itself.\n        //\n        // This allows properties to be added to the controller before the constructor is\n        // invoked. Primarily, this is used for isolate scope bindings in $compile.\n        //\n        // This feature is not intended for use by applications, and is thus not documented\n        // publicly.\n        // Object creation: http://jsperf.com/create-constructor/2\n        var controllerPrototype = (isArray(expression) ?\n          expression[expression.length - 1] : expression).prototype;\n        instance = Object.create(controllerPrototype || null);\n\n        if (identifier) {\n          addIdentifier(locals, identifier, instance, constructor || expression.name);\n        }\n\n        var instantiate;\n        return instantiate = extend(function() {\n          var result = $injector.invoke(expression, instance, locals, constructor);\n          if (result !== instance && (isObject(result) || isFunction(result))) {\n            instance = result;\n            if (identifier) {\n              // If result changed, re-assign controllerAs value to scope.\n              addIdentifier(locals, identifier, instance, constructor || expression.name);\n            }\n          }\n          return instance;\n        }, {\n          instance: instance,\n          identifier: identifier\n        });\n      }\n\n      instance = $injector.instantiate(expression, locals, constructor);\n\n      if (identifier) {\n        addIdentifier(locals, identifier, instance, constructor || expression.name);\n      }\n\n      return instance;\n    };\n\n    function addIdentifier(locals, identifier, instance, name) {\n      if (!(locals && isObject(locals.$scope))) {\n        throw minErr('$controller')('noscp',\n          \"Cannot export controller '{0}' as '{1}'! No $scope object provided via `locals`.\",\n          name, identifier);\n      }\n\n      locals.$scope[identifier] = instance;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n   <example module=\"documentExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <p>$document title: <b ng-bind=\"title\"></b></p>\n         <p>window.document title: <b ng-bind=\"windowTitle\"></b></p>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('documentExample', [])\n         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {\n           $scope.title = $document[0].title;\n           $scope.windowTitle = angular.element(window.document)[0].title;\n         }]);\n     </file>\n   </example>\n */\nfunction $DocumentProvider() {\n  this.$get = ['$window', function(window) {\n    return jqLite(window.document);\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n * @requires ng.$log\n *\n * @description\n * Any uncaught exception in angular expressions is delegated to this service.\n * The default implementation simply delegates to `$log.error` which logs it into\n * the browser console.\n *\n * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by\n * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.\n *\n * ## Example:\n *\n * ```js\n *   angular.module('exceptionOverride', []).factory('$exceptionHandler', function() {\n *     return function(exception, cause) {\n *       exception.message += ' (caused by \"' + cause + '\")';\n *       throw exception;\n *     };\n *   });\n * ```\n *\n * This example will override the normal action of `$exceptionHandler`, to make angular\n * exceptions fail hard when they happen, instead of just logging to the console.\n *\n * <hr />\n * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`\n * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}\n * (unless executed during a digest).\n *\n * If you wish, you can manually delegate exceptions, e.g.\n * `try { ... } catch(e) { $exceptionHandler(e); }`\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause optional information about the context in which\n *       the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n  this.$get = ['$log', function($log) {\n    return function(exception, cause) {\n      $log.error.apply($log, arguments);\n    };\n  }];\n}\n\nvar $$ForceReflowProvider = function() {\n  this.$get = ['$document', function($document) {\n    return function(domNode) {\n      //the line below will force the browser to perform a repaint so\n      //that all the animated elements within the animation frame will\n      //be properly updated and drawn on screen. This is required to\n      //ensure that the preparation animation is properly flushed so that\n      //the active state picks up from there. DO NOT REMOVE THIS LINE.\n      //DO NOT OPTIMIZE THIS LINE. THE MINIFIER WILL REMOVE IT OTHERWISE WHICH\n      //WILL RESULT IN AN UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND\n      //WILL TAKE YEARS AWAY FROM YOUR LIFE.\n      if (domNode) {\n        if (!domNode.nodeType && domNode instanceof jqLite) {\n          domNode = domNode[0];\n        }\n      } else {\n        domNode = $document[0].body;\n      }\n      return domNode.offsetWidth + 1;\n    };\n  }];\n};\n\nvar APPLICATION_JSON = 'application/json';\nvar CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};\nvar JSON_START = /^\\[|^\\{(?!\\{)/;\nvar JSON_ENDS = {\n  '[': /]$/,\n  '{': /}$/\n};\nvar JSON_PROTECTION_PREFIX = /^\\)\\]\\}',?\\n/;\nvar $httpMinErr = minErr('$http');\nvar $httpMinErrLegacyFn = function(method) {\n  return function() {\n    throw $httpMinErr('legacy', 'The method `{0}` on the promise returned from `$http` has been disabled.', method);\n  };\n};\n\nfunction serializeValue(v) {\n  if (isObject(v)) {\n    return isDate(v) ? v.toISOString() : toJson(v);\n  }\n  return v;\n}\n\n\nfunction $HttpParamSerializerProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializer\n   * @description\n   *\n   * Default {@link $http `$http`} params serializer that converts objects to strings\n   * according to the following rules:\n   *\n   * * `{'foo': 'bar'}` results in `foo=bar`\n   * * `{'foo': Date.now()}` results in `foo=2015-04-01T09%3A50%3A49.262Z` (`toISOString()` and encoded representation of a Date object)\n   * * `{'foo': ['bar', 'baz']}` results in `foo=bar&foo=baz` (repeated key for each array element)\n   * * `{'foo': {'bar':'baz'}}` results in `foo=%7B%22bar%22%3A%22baz%22%7D\"` (stringified and encoded representation of an object)\n   *\n   * Note that serializer will sort the request parameters alphabetically.\n   * */\n\n  this.$get = function() {\n    return function ngParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      forEachSorted(params, function(value, key) {\n        if (value === null || isUndefined(value)) return;\n        if (isArray(value)) {\n          forEach(value, function(v, k) {\n            parts.push(encodeUriQuery(key)  + '=' + encodeUriQuery(serializeValue(v)));\n          });\n        } else {\n          parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(value)));\n        }\n      });\n\n      return parts.join('&');\n    };\n  };\n}\n\nfunction $HttpParamSerializerJQLikeProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializerJQLike\n   * @description\n   *\n   * Alternative {@link $http `$http`} params serializer that follows\n   * jQuery's [`param()`](http://api.jquery.com/jquery.param/) method logic.\n   * The serializer will also sort the params alphabetically.\n   *\n   * To use it for serializing `$http` request parameters, set it as the `paramSerializer` property:\n   *\n   * ```js\n   * $http({\n   *   url: myUrl,\n   *   method: 'GET',\n   *   params: myParams,\n   *   paramSerializer: '$httpParamSerializerJQLike'\n   * });\n   * ```\n   *\n   * It is also possible to set it as the default `paramSerializer` in the\n   * {@link $httpProvider#defaults `$httpProvider`}.\n   *\n   * Additionally, you can inject the serializer and use it explicitly, for example to serialize\n   * form data for submission:\n   *\n   * ```js\n   * .controller(function($http, $httpParamSerializerJQLike) {\n   *   //...\n   *\n   *   $http({\n   *     url: myUrl,\n   *     method: 'POST',\n   *     data: $httpParamSerializerJQLike(myData),\n   *     headers: {\n   *       'Content-Type': 'application/x-www-form-urlencoded'\n   *     }\n   *   });\n   *\n   * });\n   * ```\n   *\n   * */\n  this.$get = function() {\n    return function jQueryLikeParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      serialize(params, '', true);\n      return parts.join('&');\n\n      function serialize(toSerialize, prefix, topLevel) {\n        if (toSerialize === null || isUndefined(toSerialize)) return;\n        if (isArray(toSerialize)) {\n          forEach(toSerialize, function(value, index) {\n            serialize(value, prefix + '[' + (isObject(value) ? index : '') + ']');\n          });\n        } else if (isObject(toSerialize) && !isDate(toSerialize)) {\n          forEachSorted(toSerialize, function(value, key) {\n            serialize(value, prefix +\n                (topLevel ? '' : '[') +\n                key +\n                (topLevel ? '' : ']'));\n          });\n        } else {\n          parts.push(encodeUriQuery(prefix) + '=' + encodeUriQuery(serializeValue(toSerialize)));\n        }\n      }\n    };\n  };\n}\n\nfunction defaultHttpResponseTransform(data, headers) {\n  if (isString(data)) {\n    // Strip json vulnerability protection prefix and trim whitespace\n    var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();\n\n    if (tempData) {\n      var contentType = headers('Content-Type');\n      if ((contentType && (contentType.indexOf(APPLICATION_JSON) === 0)) || isJsonLike(tempData)) {\n        data = fromJson(tempData);\n      }\n    }\n  }\n\n  return data;\n}\n\nfunction isJsonLike(str) {\n    var jsonStart = str.match(JSON_START);\n    return jsonStart && JSON_ENDS[jsonStart[0]].test(str);\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n  var parsed = createMap(), i;\n\n  function fillInParsed(key, val) {\n    if (key) {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  }\n\n  if (isString(headers)) {\n    forEach(headers.split('\\n'), function(line) {\n      i = line.indexOf(':');\n      fillInParsed(lowercase(trim(line.substr(0, i))), trim(line.substr(i + 1)));\n    });\n  } else if (isObject(headers)) {\n    forEach(headers, function(headerVal, headerKey) {\n      fillInParsed(lowercase(headerKey), trim(headerVal));\n    });\n  }\n\n  return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n *   - if called with single an argument returns a single header value or null\n *   - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n  var headersObj;\n\n  return function(name) {\n    if (!headersObj) headersObj =  parseHeaders(headers);\n\n    if (name) {\n      var value = headersObj[lowercase(name)];\n      if (value === void 0) {\n        value = null;\n      }\n      return value;\n    }\n\n    return headersObj;\n  };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers HTTP headers getter fn.\n * @param {number} status HTTP status code of the response.\n * @param {(Function|Array.<Function>)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, status, fns) {\n  if (isFunction(fns)) {\n    return fns(data, headers, status);\n  }\n\n  forEach(fns, function(fn) {\n    data = fn(data, headers, status);\n  });\n\n  return data;\n}\n\n\nfunction isSuccess(status) {\n  return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n * */\nfunction $HttpProvider() {\n  /**\n   * @ngdoc property\n   * @name $httpProvider#defaults\n   * @description\n   *\n   * Object containing default values for all {@link ng.$http $http} requests.\n   *\n   * - **`defaults.cache`** - {boolean|Object} - A boolean value or object created with\n   * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of HTTP responses\n   * by default. See {@link $http#caching $http Caching} for more information.\n   *\n   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n   * Defaults value is `'XSRF-TOKEN'`.\n   *\n   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n   *\n   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n   * setting default headers.\n   *     - **`defaults.headers.common`**\n   *     - **`defaults.headers.post`**\n   *     - **`defaults.headers.put`**\n   *     - **`defaults.headers.patch`**\n   *\n   *\n   * - **`defaults.paramSerializer`** - `{string|function(Object<string,string>):string}` - A function\n   *  used to the prepare string representation of request parameters (specified as an object).\n   *  If specified as string, it is interpreted as a function registered with the {@link auto.$injector $injector}.\n   *  Defaults to {@link ng.$httpParamSerializer $httpParamSerializer}.\n   *\n   **/\n  var defaults = this.defaults = {\n    // transform incoming response data\n    transformResponse: [defaultHttpResponseTransform],\n\n    // transform outgoing request data\n    transformRequest: [function(d) {\n      return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;\n    }],\n\n    // default headers\n    headers: {\n      common: {\n        'Accept': 'application/json, text/plain, */*'\n      },\n      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n    },\n\n    xsrfCookieName: 'XSRF-TOKEN',\n    xsrfHeaderName: 'X-XSRF-TOKEN',\n\n    paramSerializer: '$httpParamSerializer'\n  };\n\n  var useApplyAsync = false;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useApplyAsync\n   * @description\n   *\n   * Configure $http service to combine processing of multiple http responses received at around\n   * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in\n   * significant performance improvement for bigger applications that make many HTTP requests\n   * concurrently (common during application bootstrap).\n   *\n   * Defaults to false. If no value is specified, returns the current configured value.\n   *\n   * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred\n   *    \"apply\" on the next tick, giving time for subsequent requests in a roughly ~10ms window\n   *    to load and share the same digest cycle.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   **/\n  this.useApplyAsync = function(value) {\n    if (isDefined(value)) {\n      useApplyAsync = !!value;\n      return this;\n    }\n    return useApplyAsync;\n  };\n\n  var useLegacyPromise = true;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useLegacyPromiseExtensions\n   * @description\n   *\n   * Configure `$http` service to return promises without the shorthand methods `success` and `error`.\n   * This should be used to make sure that applications work without these methods.\n   *\n   * Defaults to true. If no value is specified, returns the current configured value.\n   *\n   * @param {boolean=} value If true, `$http` will return a promise with the deprecated legacy `success` and `error` methods.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   **/\n  this.useLegacyPromiseExtensions = function(value) {\n    if (isDefined(value)) {\n      useLegacyPromise = !!value;\n      return this;\n    }\n    return useLegacyPromise;\n  };\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#interceptors\n   * @description\n   *\n   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n   * pre-processing of request or postprocessing of responses.\n   *\n   * These service factories are ordered by request, i.e. they are applied in the same order as the\n   * array, on request, but reverse order, on response.\n   *\n   * {@link ng.$http#interceptors Interceptors detailed info}\n   **/\n  var interceptorFactories = this.interceptors = [];\n\n  this.$get = ['$httpBackend', '$$cookieReader', '$cacheFactory', '$rootScope', '$q', '$injector',\n      function($httpBackend, $$cookieReader, $cacheFactory, $rootScope, $q, $injector) {\n\n    var defaultCache = $cacheFactory('$http');\n\n    /**\n     * Make sure that default param serializer is exposed as a function\n     */\n    defaults.paramSerializer = isString(defaults.paramSerializer) ?\n      $injector.get(defaults.paramSerializer) : defaults.paramSerializer;\n\n    /**\n     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n     * The reversal is needed so that we can build up the interception chain around the\n     * server request.\n     */\n    var reversedInterceptors = [];\n\n    forEach(interceptorFactories, function(interceptorFactory) {\n      reversedInterceptors.unshift(isString(interceptorFactory)\n          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n    });\n\n    /**\n     * @ngdoc service\n     * @kind function\n     * @name $http\n     * @requires ng.$httpBackend\n     * @requires $cacheFactory\n     * @requires $rootScope\n     * @requires $q\n     * @requires $injector\n     *\n     * @description\n     * The `$http` service is a core Angular service that facilitates communication with the remote\n     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n     *\n     * For unit testing applications that use `$http` service, see\n     * {@link ngMock.$httpBackend $httpBackend mock}.\n     *\n     * For a higher level of abstraction, please check out the {@link ngResource.$resource\n     * $resource} service.\n     *\n     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n     * it is important to familiarize yourself with these APIs and the guarantees they provide.\n     *\n     *\n     * ## General usage\n     * The `$http` service is a function which takes a single argument — a {@link $http#usage configuration object} —\n     * that is used to generate an HTTP request and returns  a {@link ng.$q promise}.\n     *\n     * ```js\n     *   // Simple GET request example:\n     *   $http({\n     *     method: 'GET',\n     *     url: '/someUrl'\n     *   }).then(function successCallback(response) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }, function errorCallback(response) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     * The response object has these properties:\n     *\n     *   - **data** – `{string|Object}` – The response body transformed with the transform\n     *     functions.\n     *   - **status** – `{number}` – HTTP status code of the response.\n     *   - **headers** – `{function([headerName])}` – Header getter function.\n     *   - **config** – `{Object}` – The configuration object that was used to generate the request.\n     *   - **statusText** – `{string}` – HTTP status text of the response.\n     *\n     * A response status code between 200 and 299 is considered a success status and\n     * will result in the success callback being called. Note that if the response is a redirect,\n     * XMLHttpRequest will transparently follow it, meaning that the error callback will not be\n     * called for such responses.\n     *\n     *\n     * ## Shortcut methods\n     *\n     * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n     * request data must be passed in for POST/PUT requests. An optional config can be passed as the\n     * last argument.\n     *\n     * ```js\n     *   $http.get('/someUrl', config).then(successCallback, errorCallback);\n     *   $http.post('/someUrl', data, config).then(successCallback, errorCallback);\n     * ```\n     *\n     * Complete list of shortcut methods:\n     *\n     * - {@link ng.$http#get $http.get}\n     * - {@link ng.$http#head $http.head}\n     * - {@link ng.$http#post $http.post}\n     * - {@link ng.$http#put $http.put}\n     * - {@link ng.$http#delete $http.delete}\n     * - {@link ng.$http#jsonp $http.jsonp}\n     * - {@link ng.$http#patch $http.patch}\n     *\n     *\n     * ## Writing Unit Tests that use $http\n     * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n     * request using trained responses.\n     *\n     * ```\n     * $httpBackend.expectGET(...);\n     * $http.get(...);\n     * $httpBackend.flush();\n     * ```\n     *\n     * ## Deprecation Notice\n     * <div class=\"alert alert-danger\">\n     *   The `$http` legacy promise methods `success` and `error` have been deprecated.\n     *   Use the standard `then` method instead.\n     *   If {@link $httpProvider#useLegacyPromiseExtensions `$httpProvider.useLegacyPromiseExtensions`} is set to\n     *   `false` then these methods will throw {@link $http:legacy `$http/legacy`} error.\n     * </div>\n     *\n     * ## Setting HTTP Headers\n     *\n     * The $http service will automatically add certain HTTP headers to all requests. These defaults\n     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n     * object, which currently contains this default configuration:\n     *\n     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n     *   - `Accept: application/json, text/plain, * / *`\n     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n     *   - `Content-Type: application/json`\n     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n     *   - `Content-Type: application/json`\n     *\n     * To add or overwrite these defaults, simply add or remove a property from these configuration\n     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n     * with the lowercased HTTP method name as the key, e.g.\n     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }`.\n     *\n     * The defaults can also be set at runtime via the `$http.defaults` object in the same\n     * fashion. For example:\n     *\n     * ```\n     * module.run(function($http) {\n     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w'\n     * });\n     * ```\n     *\n     * In addition, you can supply a `headers` property in the config object passed when\n     * calling `$http(config)`, which overrides the defaults without changing them globally.\n     *\n     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n     * Use the `headers` property, setting the desired header to `undefined`. For example:\n     *\n     * ```js\n     * var req = {\n     *  method: 'POST',\n     *  url: 'http://example.com',\n     *  headers: {\n     *    'Content-Type': undefined\n     *  },\n     *  data: { test: 'test' }\n     * }\n     *\n     * $http(req).then(function(){...}, function(){...});\n     * ```\n     *\n     * ## Transforming Requests and Responses\n     *\n     * Both requests and responses can be transformed using transformation functions: `transformRequest`\n     * and `transformResponse`. These properties can be a single function that returns\n     * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,\n     * which allows you to `push` or `unshift` a new transformation function into the transformation chain.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note:** Angular does not make a copy of the `data` parameter before it is passed into the `transformRequest` pipeline.\n     * That means changes to the properties of `data` are not local to the transform function (since Javascript passes objects by reference).\n     * For example, when calling `$http.get(url, $scope.myObject)`, modifications to the object's properties in a transformRequest\n     * function will be reflected on the scope and in any templates where the object is data-bound.\n     * To prevent this, transform functions should have no side-effects.\n     * If you need to modify properties, it is recommended to make a copy of the data, or create new object to return.\n     * </div>\n     *\n     * ### Default Transformations\n     *\n     * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and\n     * `defaults.transformResponse` properties. If a request does not provide its own transformations\n     * then these will be applied.\n     *\n     * You can augment or replace the default transformations by modifying these properties by adding to or\n     * replacing the array.\n     *\n     * Angular provides the following default transformations:\n     *\n     * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`):\n     *\n     * - If the `data` property of the request configuration object contains an object, serialize it\n     *   into JSON format.\n     *\n     * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`):\n     *\n     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).\n     *  - If JSON response is detected, deserialize it using a JSON parser.\n     *\n     *\n     * ### Overriding the Default Transformations Per Request\n     *\n     * If you wish override the request/response transformations only for a single request then provide\n     * `transformRequest` and/or `transformResponse` properties on the configuration object passed\n     * into `$http`.\n     *\n     * Note that if you provide these properties on the config object the default transformations will be\n     * overwritten. If you wish to augment the default transformations then you must include them in your\n     * local transformation array.\n     *\n     * The following code demonstrates adding a new response transformation to be run after the default response\n     * transformations have been run.\n     *\n     * ```js\n     * function appendTransform(defaults, transform) {\n     *\n     *   // We can't guarantee that the default transformation is an array\n     *   defaults = angular.isArray(defaults) ? defaults : [defaults];\n     *\n     *   // Append the new transformation to the defaults\n     *   return defaults.concat(transform);\n     * }\n     *\n     * $http({\n     *   url: '...',\n     *   method: 'GET',\n     *   transformResponse: appendTransform($http.defaults.transformResponse, function(value) {\n     *     return doTransform(value);\n     *   })\n     * });\n     * ```\n     *\n     *\n     * ## Caching\n     *\n     * {@link ng.$http `$http`} responses are not cached by default. To enable caching, you must\n     * set the config.cache value or the default cache value to TRUE or to a cache object (created\n     * with {@link ng.$cacheFactory `$cacheFactory`}). If defined, the value of config.cache takes\n     * precedence over the default cache value.\n     *\n     * In order to:\n     *   * cache all responses - set the default cache value to TRUE or to a cache object\n     *   * cache a specific response - set config.cache value to TRUE or to a cache object\n     *\n     * If caching is enabled, but neither the default cache nor config.cache are set to a cache object,\n     * then the default `$cacheFactory($http)` object is used.\n     *\n     * The default cache value can be set by updating the\n     * {@link ng.$http#defaults `$http.defaults.cache`} property or the\n     * {@link $httpProvider#defaults `$httpProvider.defaults.cache`} property.\n     *\n     * When caching is enabled, {@link ng.$http `$http`} stores the response from the server using\n     * the relevant cache object. The next time the same request is made, the response is returned\n     * from the cache without sending a request to the server.\n     *\n     * Take note that:\n     *\n     *   * Only GET and JSONP requests are cached.\n     *   * The cache key is the request URL including search parameters; headers are not considered.\n     *   * Cached responses are returned asynchronously, in the same way as responses from the server.\n     *   * If multiple identical requests are made using the same cache, which is not yet populated,\n     *     one request will be made to the server and remaining requests will return the same response.\n     *   * A cache-control header on the response does not affect if or how responses are cached.\n     *\n     *\n     * ## Interceptors\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication, or any kind of synchronous or\n     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n     * able to intercept requests before they are handed to the server and\n     * responses before they are handed over to the application code that\n     * initiated these requests. The interceptors leverage the {@link ng.$q\n     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n     *\n     * The interceptors are service factories that are registered with the `$httpProvider` by\n     * adding them to the `$httpProvider.interceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor.\n     *\n     * There are two kinds of interceptors (and two kinds of rejection interceptors):\n     *\n     *   * `request`: interceptors get called with a http {@link $http#usage config} object. The function is free to\n     *     modify the `config` object or create a new one. The function needs to return the `config`\n     *     object directly, or a promise containing the `config` or a new `config` object.\n     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *   * `response`: interceptors get called with http `response` object. The function is free to\n     *     modify the `response` object or create a new one. The function needs to return the `response`\n     *     object directly, or as a promise containing the `response` or a new `response` object.\n     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return {\n     *       // optional method\n     *       'request': function(config) {\n     *         // do something on success\n     *         return config;\n     *       },\n     *\n     *       // optional method\n     *      'requestError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       },\n     *\n     *\n     *\n     *       // optional method\n     *       'response': function(response) {\n     *         // do something on success\n     *         return response;\n     *       },\n     *\n     *       // optional method\n     *      'responseError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       }\n     *     };\n     *   });\n     *\n     *   $httpProvider.interceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // alternatively, register the interceptor via an anonymous factory\n     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n     *     return {\n     *      'request': function(config) {\n     *          // same as above\n     *       },\n     *\n     *       'response': function(response) {\n     *          // same as above\n     *       }\n     *     };\n     *   });\n     * ```\n     *\n     * ## Security Considerations\n     *\n     * When designing web applications, consider security threats from:\n     *\n     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n     *\n     * Both server and the client must cooperate in order to eliminate these threats. Angular comes\n     * pre-configured with strategies that address these issues, but for this to work backend server\n     * cooperation is required.\n     *\n     * ### JSON Vulnerability Protection\n     *\n     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * allows third party website to turn your JSON resource URL into\n     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n     * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n     * Angular will automatically strip the prefix before processing it as JSON.\n     *\n     * For example if your server needs to return:\n     * ```js\n     * ['one','two']\n     * ```\n     *\n     * which is vulnerable to attack, your server can return:\n     * ```js\n     * )]}',\n     * ['one','two']\n     * ```\n     *\n     * Angular will strip the prefix, before processing the JSON.\n     *\n     *\n     * ### Cross Site Request Forgery (XSRF) Protection\n     *\n     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is an attack technique by\n     * which the attacker can trick an authenticated user into unknowingly executing actions on your\n     * website. Angular provides a mechanism to counter XSRF. When performing XHR requests, the\n     * $http service reads a token from a cookie (by default, `XSRF-TOKEN`) and sets it as an HTTP\n     * header (`X-XSRF-TOKEN`). Since only JavaScript that runs on your domain could read the\n     * cookie, your server can be assured that the XHR came from JavaScript running on your domain.\n     * The header will not be set for cross-domain requests.\n     *\n     * To take advantage of this, your server needs to set a token in a JavaScript readable session\n     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n     * server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure\n     * that only JavaScript running on your domain could have sent the request. The token must be\n     * unique for each user and must be verifiable by the server (to prevent the JavaScript from\n     * making up its own tokens). We recommend that the token is a digest of your site's\n     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)\n     * for added security.\n     *\n     * The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName\n     * properties of either $httpProvider.defaults at config-time, $http.defaults at run-time,\n     * or the per-request config object.\n     *\n     * In order to prevent collisions in environments where multiple Angular apps share the\n     * same domain or subdomain, we recommend that each application uses unique cookie name.\n     *\n     * @param {object} config Object describing the request to be made and how it should be\n     *    processed. The object has following properties:\n     *\n     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n     *    - **url** – `{string}` – Absolute or relative URL of the resource that is being requested.\n     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be serialized\n     *      with the `paramSerializer` and appended as GET parameters.\n     *    - **data** – `{string|Object}` – Data to be sent as the request message data.\n     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing\n     *      HTTP headers to send to the server. If the return value of a function is null, the\n     *      header will not be sent. Functions accept a config object as an argument.\n     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n     *    - **transformRequest** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      request body and headers and returns its transformed (typically serialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **transformResponse** –\n     *      `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      response body, headers and status and returns its transformed (typically deserialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **paramSerializer** - `{string|function(Object<string,string>):string}` - A function used to\n     *      prepare the string representation of request parameters (specified as an object).\n     *      If specified as string, it is interpreted as function registered with the\n     *      {@link $injector $injector}, which means you can create your own serializer\n     *      by registering it as a {@link auto.$provide#service service}.\n     *      The default serializer is the {@link $httpParamSerializer $httpParamSerializer};\n     *      alternatively, you can use the {@link $httpParamSerializerJQLike $httpParamSerializerJQLike}\n     *    - **cache** – `{boolean|Object}` – A boolean value or object created with\n     *      {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response.\n     *      See {@link $http#caching $http Caching} for more information.\n     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n     *      that should abort the request when resolved.\n     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n     *      for more information.\n     *    - **responseType** - `{string}` - see\n     *      [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#xmlhttprequest-responsetype).\n     *\n     * @returns {HttpPromise} Returns a {@link ng.$q `Promise}` that will be resolved to a response object\n     *                        when the request succeeds or fails.\n     *\n     *\n     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending\n     *   requests. This is primarily meant to be used for debugging purposes.\n     *\n     *\n     * @example\n<example module=\"httpExample\">\n<file name=\"index.html\">\n  <div ng-controller=\"FetchController\">\n    <select ng-model=\"method\" aria-label=\"Request method\">\n      <option>GET</option>\n      <option>JSONP</option>\n    </select>\n    <input type=\"text\" ng-model=\"url\" size=\"80\" aria-label=\"URL\" />\n    <button id=\"fetchbtn\" ng-click=\"fetch()\">fetch</button><br>\n    <button id=\"samplegetbtn\" ng-click=\"updateModel('GET', 'http-hello.html')\">Sample GET</button>\n    <button id=\"samplejsonpbtn\"\n      ng-click=\"updateModel('JSONP',\n                    'https://angularjs.org/greet.php?callback=JSON_CALLBACK&name=Super%20Hero')\">\n      Sample JSONP\n    </button>\n    <button id=\"invalidjsonpbtn\"\n      ng-click=\"updateModel('JSONP', 'https://angularjs.org/doesntexist&callback=JSON_CALLBACK')\">\n        Invalid JSONP\n      </button>\n    <pre>http status code: {{status}}</pre>\n    <pre>http response data: {{data}}</pre>\n  </div>\n</file>\n<file name=\"script.js\">\n  angular.module('httpExample', [])\n    .controller('FetchController', ['$scope', '$http', '$templateCache',\n      function($scope, $http, $templateCache) {\n        $scope.method = 'GET';\n        $scope.url = 'http-hello.html';\n\n        $scope.fetch = function() {\n          $scope.code = null;\n          $scope.response = null;\n\n          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).\n            then(function(response) {\n              $scope.status = response.status;\n              $scope.data = response.data;\n            }, function(response) {\n              $scope.data = response.data || \"Request failed\";\n              $scope.status = response.status;\n          });\n        };\n\n        $scope.updateModel = function(method, url) {\n          $scope.method = method;\n          $scope.url = url;\n        };\n      }]);\n</file>\n<file name=\"http-hello.html\">\n  Hello, $http!\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  var status = element(by.binding('status'));\n  var data = element(by.binding('data'));\n  var fetchBtn = element(by.id('fetchbtn'));\n  var sampleGetBtn = element(by.id('samplegetbtn'));\n  var sampleJsonpBtn = element(by.id('samplejsonpbtn'));\n  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));\n\n  it('should make an xhr GET request', function() {\n    sampleGetBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('200');\n    expect(data.getText()).toMatch(/Hello, \\$http!/);\n  });\n\n// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185\n// it('should make a JSONP request to angularjs.org', function() {\n//   sampleJsonpBtn.click();\n//   fetchBtn.click();\n//   expect(status.getText()).toMatch('200');\n//   expect(data.getText()).toMatch(/Super Hero!/);\n// });\n\n  it('should make JSONP request to invalid URL and invoke the error handler',\n      function() {\n    invalidJsonpBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('0');\n    expect(data.getText()).toMatch('Request failed');\n  });\n</file>\n</example>\n     */\n    function $http(requestConfig) {\n\n      if (!angular.isObject(requestConfig)) {\n        throw minErr('$http')('badreq', 'Http request configuration must be an object.  Received: {0}', requestConfig);\n      }\n\n      if (!isString(requestConfig.url)) {\n        throw minErr('$http')('badreq', 'Http request configuration url must be a string.  Received: {0}', requestConfig.url);\n      }\n\n      var config = extend({\n        method: 'get',\n        transformRequest: defaults.transformRequest,\n        transformResponse: defaults.transformResponse,\n        paramSerializer: defaults.paramSerializer\n      }, requestConfig);\n\n      config.headers = mergeHeaders(requestConfig);\n      config.method = uppercase(config.method);\n      config.paramSerializer = isString(config.paramSerializer) ?\n        $injector.get(config.paramSerializer) : config.paramSerializer;\n\n      var serverRequest = function(config) {\n        var headers = config.headers;\n        var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest);\n\n        // strip content-type if data is undefined\n        if (isUndefined(reqData)) {\n          forEach(headers, function(value, header) {\n            if (lowercase(header) === 'content-type') {\n                delete headers[header];\n            }\n          });\n        }\n\n        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {\n          config.withCredentials = defaults.withCredentials;\n        }\n\n        // send request\n        return sendReq(config, reqData).then(transformResponse, transformResponse);\n      };\n\n      var chain = [serverRequest, undefined];\n      var promise = $q.when(config);\n\n      // apply interceptors\n      forEach(reversedInterceptors, function(interceptor) {\n        if (interceptor.request || interceptor.requestError) {\n          chain.unshift(interceptor.request, interceptor.requestError);\n        }\n        if (interceptor.response || interceptor.responseError) {\n          chain.push(interceptor.response, interceptor.responseError);\n        }\n      });\n\n      while (chain.length) {\n        var thenFn = chain.shift();\n        var rejectFn = chain.shift();\n\n        promise = promise.then(thenFn, rejectFn);\n      }\n\n      if (useLegacyPromise) {\n        promise.success = function(fn) {\n          assertArgFn(fn, 'fn');\n\n          promise.then(function(response) {\n            fn(response.data, response.status, response.headers, config);\n          });\n          return promise;\n        };\n\n        promise.error = function(fn) {\n          assertArgFn(fn, 'fn');\n\n          promise.then(null, function(response) {\n            fn(response.data, response.status, response.headers, config);\n          });\n          return promise;\n        };\n      } else {\n        promise.success = $httpMinErrLegacyFn('success');\n        promise.error = $httpMinErrLegacyFn('error');\n      }\n\n      return promise;\n\n      function transformResponse(response) {\n        // make a copy since the response must be cacheable\n        var resp = extend({}, response);\n        resp.data = transformData(response.data, response.headers, response.status,\n                                  config.transformResponse);\n        return (isSuccess(response.status))\n          ? resp\n          : $q.reject(resp);\n      }\n\n      function executeHeaderFns(headers, config) {\n        var headerContent, processedHeaders = {};\n\n        forEach(headers, function(headerFn, header) {\n          if (isFunction(headerFn)) {\n            headerContent = headerFn(config);\n            if (headerContent != null) {\n              processedHeaders[header] = headerContent;\n            }\n          } else {\n            processedHeaders[header] = headerFn;\n          }\n        });\n\n        return processedHeaders;\n      }\n\n      function mergeHeaders(config) {\n        var defHeaders = defaults.headers,\n            reqHeaders = extend({}, config.headers),\n            defHeaderName, lowercaseDefHeaderName, reqHeaderName;\n\n        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);\n\n        // using for-in instead of forEach to avoid unecessary iteration after header has been found\n        defaultHeadersIteration:\n        for (defHeaderName in defHeaders) {\n          lowercaseDefHeaderName = lowercase(defHeaderName);\n\n          for (reqHeaderName in reqHeaders) {\n            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {\n              continue defaultHeadersIteration;\n            }\n          }\n\n          reqHeaders[defHeaderName] = defHeaders[defHeaderName];\n        }\n\n        // execute if header value is a function for merged headers\n        return executeHeaderFns(reqHeaders, shallowCopy(config));\n      }\n    }\n\n    $http.pendingRequests = [];\n\n    /**\n     * @ngdoc method\n     * @name $http#get\n     *\n     * @description\n     * Shortcut method to perform `GET` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#delete\n     *\n     * @description\n     * Shortcut method to perform `DELETE` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#head\n     *\n     * @description\n     * Shortcut method to perform `HEAD` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#jsonp\n     *\n     * @description\n     * Shortcut method to perform `JSONP` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request.\n     *                     The name of the callback should be the string `JSON_CALLBACK`.\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n    createShortMethods('get', 'delete', 'head', 'jsonp');\n\n    /**\n     * @ngdoc method\n     * @name $http#post\n     *\n     * @description\n     * Shortcut method to perform `POST` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#put\n     *\n     * @description\n     * Shortcut method to perform `PUT` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n     /**\n      * @ngdoc method\n      * @name $http#patch\n      *\n      * @description\n      * Shortcut method to perform `PATCH` request.\n      *\n      * @param {string} url Relative or absolute URL specifying the destination of the request\n      * @param {*} data Request content\n      * @param {Object=} config Optional configuration object\n      * @returns {HttpPromise} Future object\n      */\n    createShortMethodsWithData('post', 'put', 'patch');\n\n        /**\n         * @ngdoc property\n         * @name $http#defaults\n         *\n         * @description\n         * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of\n         * default headers, withCredentials as well as request and response transformations.\n         *\n         * See \"Setting HTTP Headers\" and \"Transforming Requests and Responses\" sections above.\n         */\n    $http.defaults = defaults;\n\n\n    return $http;\n\n\n    function createShortMethods(names) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url\n          }));\n        };\n      });\n    }\n\n\n    function createShortMethodsWithData(name) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, data, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url,\n            data: data\n          }));\n        };\n      });\n    }\n\n\n    /**\n     * Makes the request.\n     *\n     * !!! ACCESSES CLOSURE VARS:\n     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests\n     */\n    function sendReq(config, reqData) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          cache,\n          cachedResp,\n          reqHeaders = config.headers,\n          url = buildUrl(config.url, config.paramSerializer(config.params));\n\n      $http.pendingRequests.push(config);\n      promise.then(removePendingReq, removePendingReq);\n\n\n      if ((config.cache || defaults.cache) && config.cache !== false &&\n          (config.method === 'GET' || config.method === 'JSONP')) {\n        cache = isObject(config.cache) ? config.cache\n              : isObject(defaults.cache) ? defaults.cache\n              : defaultCache;\n      }\n\n      if (cache) {\n        cachedResp = cache.get(url);\n        if (isDefined(cachedResp)) {\n          if (isPromiseLike(cachedResp)) {\n            // cached request has already been sent, but there is no response yet\n            cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult);\n          } else {\n            // serving from cache\n            if (isArray(cachedResp)) {\n              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3]);\n            } else {\n              resolvePromise(cachedResp, 200, {}, 'OK');\n            }\n          }\n        } else {\n          // put the promise for the non-transformed response into cache as a placeholder\n          cache.put(url, promise);\n        }\n      }\n\n\n      // if we won't have the response in cache, set the xsrf headers and\n      // send the request to the backend\n      if (isUndefined(cachedResp)) {\n        var xsrfValue = urlIsSameOrigin(config.url)\n            ? $$cookieReader()[config.xsrfCookieName || defaults.xsrfCookieName]\n            : undefined;\n        if (xsrfValue) {\n          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;\n        }\n\n        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,\n            config.withCredentials, config.responseType);\n      }\n\n      return promise;\n\n\n      /**\n       * Callback registered to $httpBackend():\n       *  - caches the response if desired\n       *  - resolves the raw $http promise\n       *  - calls $apply\n       */\n      function done(status, response, headersString, statusText) {\n        if (cache) {\n          if (isSuccess(status)) {\n            cache.put(url, [status, response, parseHeaders(headersString), statusText]);\n          } else {\n            // remove promise from the cache\n            cache.remove(url);\n          }\n        }\n\n        function resolveHttpPromise() {\n          resolvePromise(response, status, headersString, statusText);\n        }\n\n        if (useApplyAsync) {\n          $rootScope.$applyAsync(resolveHttpPromise);\n        } else {\n          resolveHttpPromise();\n          if (!$rootScope.$$phase) $rootScope.$apply();\n        }\n      }\n\n\n      /**\n       * Resolves the raw $http promise.\n       */\n      function resolvePromise(response, status, headers, statusText) {\n        //status: HTTP response status code, 0, -1 (aborted by timeout / promise)\n        status = status >= -1 ? status : 0;\n\n        (isSuccess(status) ? deferred.resolve : deferred.reject)({\n          data: response,\n          status: status,\n          headers: headersGetter(headers),\n          config: config,\n          statusText: statusText\n        });\n      }\n\n      function resolvePromiseWithResult(result) {\n        resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText);\n      }\n\n      function removePendingReq() {\n        var idx = $http.pendingRequests.indexOf(config);\n        if (idx !== -1) $http.pendingRequests.splice(idx, 1);\n      }\n    }\n\n\n    function buildUrl(url, serializedParams) {\n      if (serializedParams.length > 0) {\n        url += ((url.indexOf('?') == -1) ? '?' : '&') + serializedParams;\n      }\n      return url;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $xhrFactory\n *\n * @description\n * Factory function used to create XMLHttpRequest objects.\n *\n * Replace or decorate this service to create your own custom XMLHttpRequest objects.\n *\n * ```\n * angular.module('myApp', [])\n * .factory('$xhrFactory', function() {\n *   return function createXhr(method, url) {\n *     return new window.XMLHttpRequest({mozSystem: true});\n *   };\n * });\n * ```\n *\n * @param {string} method HTTP method of the request (GET, POST, PUT, ..)\n * @param {string} url URL of the request.\n */\nfunction $xhrFactoryProvider() {\n  this.$get = function() {\n    return function createXhr() {\n      return new window.XMLHttpRequest();\n    };\n  };\n}\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @requires $window\n * @requires $document\n * @requires $xhrFactory\n *\n * @description\n * HTTP backend used by the {@link ng.$http service} that delegates to\n * XMLHttpRequest object or JSONP and deals with browser incompatibilities.\n *\n * You should never need to use this service directly, instead use the higher-level abstractions:\n * {@link ng.$http $http} or {@link ngResource.$resource $resource}.\n *\n * During testing this implementation is swapped with {@link ngMock.$httpBackend mock\n * $httpBackend} which can be trained with responses.\n */\nfunction $HttpBackendProvider() {\n  this.$get = ['$browser', '$window', '$document', '$xhrFactory', function($browser, $window, $document, $xhrFactory) {\n    return createHttpBackend($browser, $xhrFactory, $browser.defer, $window.angular.callbacks, $document[0]);\n  }];\n}\n\nfunction createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {\n  // TODO(vojta): fix the signature\n  return function(method, url, post, callback, headers, timeout, withCredentials, responseType) {\n    $browser.$$incOutstandingRequestCount();\n    url = url || $browser.url();\n\n    if (lowercase(method) == 'jsonp') {\n      var callbackId = '_' + (callbacks.counter++).toString(36);\n      callbacks[callbackId] = function(data) {\n        callbacks[callbackId].data = data;\n        callbacks[callbackId].called = true;\n      };\n\n      var jsonpDone = jsonpReq(url.replace('JSON_CALLBACK', 'angular.callbacks.' + callbackId),\n          callbackId, function(status, text) {\n        completeRequest(callback, status, callbacks[callbackId].data, \"\", text);\n        callbacks[callbackId] = noop;\n      });\n    } else {\n\n      var xhr = createXhr(method, url);\n\n      xhr.open(method, url, true);\n      forEach(headers, function(value, key) {\n        if (isDefined(value)) {\n            xhr.setRequestHeader(key, value);\n        }\n      });\n\n      xhr.onload = function requestLoaded() {\n        var statusText = xhr.statusText || '';\n\n        // responseText is the old-school way of retrieving response (supported by IE9)\n        // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)\n        var response = ('response' in xhr) ? xhr.response : xhr.responseText;\n\n        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)\n        var status = xhr.status === 1223 ? 204 : xhr.status;\n\n        // fix status code when it is 0 (0 status is undocumented).\n        // Occurs when accessing file resources or on Android 4.1 stock browser\n        // while retrieving files from application cache.\n        if (status === 0) {\n          status = response ? 200 : urlResolve(url).protocol == 'file' ? 404 : 0;\n        }\n\n        completeRequest(callback,\n            status,\n            response,\n            xhr.getAllResponseHeaders(),\n            statusText);\n      };\n\n      var requestError = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '');\n      };\n\n      xhr.onerror = requestError;\n      xhr.onabort = requestError;\n\n      if (withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      if (responseType) {\n        try {\n          xhr.responseType = responseType;\n        } catch (e) {\n          // WebKit added support for the json responseType value on 09/03/2013\n          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are\n          // known to throw when setting the value \"json\" as the response type. Other older\n          // browsers implementing the responseType\n          //\n          // The json response type can be ignored if not supported, because JSON payloads are\n          // parsed on the client-side regardless.\n          if (responseType !== 'json') {\n            throw e;\n          }\n        }\n      }\n\n      xhr.send(isUndefined(post) ? null : post);\n    }\n\n    if (timeout > 0) {\n      var timeoutId = $browserDefer(timeoutRequest, timeout);\n    } else if (isPromiseLike(timeout)) {\n      timeout.then(timeoutRequest);\n    }\n\n\n    function timeoutRequest() {\n      jsonpDone && jsonpDone();\n      xhr && xhr.abort();\n    }\n\n    function completeRequest(callback, status, response, headersString, statusText) {\n      // cancel timeout and subsequent timeout promise resolution\n      if (isDefined(timeoutId)) {\n        $browserDefer.cancel(timeoutId);\n      }\n      jsonpDone = xhr = null;\n\n      callback(status, response, headersString, statusText);\n      $browser.$$completeOutstandingRequest(noop);\n    }\n  };\n\n  function jsonpReq(url, callbackId, done) {\n    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:\n    // - fetches local scripts via XHR and evals them\n    // - adds and immediately removes script elements from the document\n    var script = rawDocument.createElement('script'), callback = null;\n    script.type = \"text/javascript\";\n    script.src = url;\n    script.async = true;\n\n    callback = function(event) {\n      removeEventListenerFn(script, \"load\", callback);\n      removeEventListenerFn(script, \"error\", callback);\n      rawDocument.body.removeChild(script);\n      script = null;\n      var status = -1;\n      var text = \"unknown\";\n\n      if (event) {\n        if (event.type === \"load\" && !callbacks[callbackId].called) {\n          event = { type: \"error\" };\n        }\n        text = event.type;\n        status = event.type === \"error\" ? 404 : 200;\n      }\n\n      if (done) {\n        done(status, text);\n      }\n    };\n\n    addEventListenerFn(script, \"load\", callback);\n    addEventListenerFn(script, \"error\", callback);\n    rawDocument.body.appendChild(script);\n    return callback;\n  }\n}\n\nvar $interpolateMinErr = angular.$interpolateMinErr = minErr('$interpolate');\n$interpolateMinErr.throwNoconcat = function(text) {\n  throw $interpolateMinErr('noconcat',\n      \"Error while interpolating: {0}\\nStrict Contextual Escaping disallows \" +\n      \"interpolations that concatenate multiple expressions when a trusted value is \" +\n      \"required.  See http://docs.angularjs.org/api/ng.$sce\", text);\n};\n\n$interpolateMinErr.interr = function(text, err) {\n  return $interpolateMinErr('interr', \"Can't interpolate: {0}\\n{1}\", text, err.toString());\n};\n\n/**\n * @ngdoc provider\n * @name $interpolateProvider\n *\n * @description\n *\n * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.\n *\n * @example\n<example name=\"custom-interpolation-markup\" module=\"customInterpolationApp\">\n<file name=\"index.html\">\n<script>\n  var customInterpolationApp = angular.module('customInterpolationApp', []);\n\n  customInterpolationApp.config(function($interpolateProvider) {\n    $interpolateProvider.startSymbol('//');\n    $interpolateProvider.endSymbol('//');\n  });\n\n\n  customInterpolationApp.controller('DemoController', function() {\n      this.label = \"This binding is brought you by // interpolation symbols.\";\n  });\n</script>\n<div ng-controller=\"DemoController as demo\">\n    //demo.label//\n</div>\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  it('should interpolate binding with custom symbols', function() {\n    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');\n  });\n</file>\n</example>\n */\nfunction $InterpolateProvider() {\n  var startSymbol = '{{';\n  var endSymbol = '}}';\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#startSymbol\n   * @description\n   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.\n   *\n   * @param {string=} value new value to set the starting symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.startSymbol = function(value) {\n    if (value) {\n      startSymbol = value;\n      return this;\n    } else {\n      return startSymbol;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#endSymbol\n   * @description\n   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n   *\n   * @param {string=} value new value to set the ending symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.endSymbol = function(value) {\n    if (value) {\n      endSymbol = value;\n      return this;\n    } else {\n      return endSymbol;\n    }\n  };\n\n\n  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {\n    var startSymbolLength = startSymbol.length,\n        endSymbolLength = endSymbol.length,\n        escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'),\n        escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g');\n\n    function escape(ch) {\n      return '\\\\\\\\\\\\' + ch;\n    }\n\n    function unescapeText(text) {\n      return text.replace(escapedStartRegexp, startSymbol).\n        replace(escapedEndRegexp, endSymbol);\n    }\n\n    function stringify(value) {\n      if (value == null) { // null || undefined\n        return '';\n      }\n      switch (typeof value) {\n        case 'string':\n          break;\n        case 'number':\n          value = '' + value;\n          break;\n        default:\n          value = toJson(value);\n      }\n\n      return value;\n    }\n\n    /**\n     * @ngdoc service\n     * @name $interpolate\n     * @kind function\n     *\n     * @requires $parse\n     * @requires $sce\n     *\n     * @description\n     *\n     * Compiles a string with markup into an interpolation function. This service is used by the\n     * HTML {@link ng.$compile $compile} service for data binding. See\n     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the\n     * interpolation markup.\n     *\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var exp = $interpolate('Hello {{name | uppercase}}!');\n     *   expect(exp({name:'Angular'})).toEqual('Hello ANGULAR!');\n     * ```\n     *\n     * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is\n     * `true`, the interpolation function will return `undefined` unless all embedded expressions\n     * evaluate to a value other than `undefined`.\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var context = {greeting: 'Hello', name: undefined };\n     *\n     *   // default \"forgiving\" mode\n     *   var exp = $interpolate('{{greeting}} {{name}}!');\n     *   expect(exp(context)).toEqual('Hello !');\n     *\n     *   // \"allOrNothing\" mode\n     *   exp = $interpolate('{{greeting}} {{name}}!', false, null, true);\n     *   expect(exp(context)).toBeUndefined();\n     *   context.name = 'Angular';\n     *   expect(exp(context)).toEqual('Hello Angular!');\n     * ```\n     *\n     * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior.\n     *\n     * ####Escaped Interpolation\n     * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers\n     * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash).\n     * It will be rendered as a regular start/end marker, and will not be interpreted as an expression\n     * or binding.\n     *\n     * This enables web-servers to prevent script injection attacks and defacing attacks, to some\n     * degree, while also enabling code examples to work without relying on the\n     * {@link ng.directive:ngNonBindable ngNonBindable} directive.\n     *\n     * **For security purposes, it is strongly encouraged that web servers escape user-supplied data,\n     * replacing angle brackets (&lt;, &gt;) with &amp;lt; and &amp;gt; respectively, and replacing all\n     * interpolation start/end markers with their escaped counterparts.**\n     *\n     * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered\n     * output when the $interpolate service processes the text. So, for HTML elements interpolated\n     * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter\n     * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such,\n     * this is typically useful only when user-data is used in rendering a template from the server, or\n     * when otherwise untrusted data is used by a directive.\n     *\n     * <example>\n     *  <file name=\"index.html\">\n     *    <div ng-init=\"username='A user'\">\n     *      <p ng-init=\"apptitle='Escaping demo'\">{{apptitle}}: \\{\\{ username = \"defaced value\"; \\}\\}\n     *        </p>\n     *      <p><strong>{{username}}</strong> attempts to inject code which will deface the\n     *        application, but fails to accomplish their task, because the server has correctly\n     *        escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash)\n     *        characters.</p>\n     *      <p>Instead, the result of the attempted script injection is visible, and can be removed\n     *        from the database by an administrator.</p>\n     *    </div>\n     *  </file>\n     * </example>\n     *\n     * @knownIssue\n     * It is currently not possible for an interpolated expression to contain the interpolation end\n     * symbol. For example, `{{ '}}' }}` will be incorrectly interpreted as `{{ ' }}` + `' }}`, i.e.\n     * an interpolated expression consisting of a single-quote (`'`) and the `' }}` string.\n     *\n     * @param {string} text The text with markup to interpolate.\n     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have\n     *    embedded expression in order to return an interpolation function. Strings with no\n     *    embedded expression will return null for the interpolation function.\n     * @param {string=} trustedContext when provided, the returned function passes the interpolated\n     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,\n     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that\n     *    provides Strict Contextual Escaping for details.\n     * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined\n     *    unless all embedded expressions evaluate to a value other than `undefined`.\n     * @returns {function(context)} an interpolation function which is used to compute the\n     *    interpolated string. The function has these parameters:\n     *\n     * - `context`: evaluation context for all expressions embedded in the interpolated text\n     */\n    function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {\n      allOrNothing = !!allOrNothing;\n      var startIndex,\n          endIndex,\n          index = 0,\n          expressions = [],\n          parseFns = [],\n          textLength = text.length,\n          exp,\n          concat = [],\n          expressionPositions = [];\n\n      while (index < textLength) {\n        if (((startIndex = text.indexOf(startSymbol, index)) != -1) &&\n             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) != -1)) {\n          if (index !== startIndex) {\n            concat.push(unescapeText(text.substring(index, startIndex)));\n          }\n          exp = text.substring(startIndex + startSymbolLength, endIndex);\n          expressions.push(exp);\n          parseFns.push($parse(exp, parseStringifyInterceptor));\n          index = endIndex + endSymbolLength;\n          expressionPositions.push(concat.length);\n          concat.push('');\n        } else {\n          // we did not find an interpolation, so we have to add the remainder to the separators array\n          if (index !== textLength) {\n            concat.push(unescapeText(text.substring(index)));\n          }\n          break;\n        }\n      }\n\n      // Concatenating expressions makes it hard to reason about whether some combination of\n      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a\n      // single expression be used for iframe[src], object[src], etc., we ensure that the value\n      // that's used is assigned or constructed by some JS code somewhere that is more testable or\n      // make it obvious that you bound the value to some user controlled value.  This helps reduce\n      // the load when auditing for XSS issues.\n      if (trustedContext && concat.length > 1) {\n          $interpolateMinErr.throwNoconcat(text);\n      }\n\n      if (!mustHaveExpression || expressions.length) {\n        var compute = function(values) {\n          for (var i = 0, ii = expressions.length; i < ii; i++) {\n            if (allOrNothing && isUndefined(values[i])) return;\n            concat[expressionPositions[i]] = values[i];\n          }\n          return concat.join('');\n        };\n\n        var getValue = function(value) {\n          return trustedContext ?\n            $sce.getTrusted(trustedContext, value) :\n            $sce.valueOf(value);\n        };\n\n        return extend(function interpolationFn(context) {\n            var i = 0;\n            var ii = expressions.length;\n            var values = new Array(ii);\n\n            try {\n              for (; i < ii; i++) {\n                values[i] = parseFns[i](context);\n              }\n\n              return compute(values);\n            } catch (err) {\n              $exceptionHandler($interpolateMinErr.interr(text, err));\n            }\n\n          }, {\n          // all of these properties are undocumented for now\n          exp: text, //just for compatibility with regular watchers created via $watch\n          expressions: expressions,\n          $$watchDelegate: function(scope, listener) {\n            var lastValue;\n            return scope.$watchGroup(parseFns, function interpolateFnWatcher(values, oldValues) {\n              var currValue = compute(values);\n              if (isFunction(listener)) {\n                listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope);\n              }\n              lastValue = currValue;\n            });\n          }\n        });\n      }\n\n      function parseStringifyInterceptor(value) {\n        try {\n          value = getValue(value);\n          return allOrNothing && !isDefined(value) ? value : stringify(value);\n        } catch (err) {\n          $exceptionHandler($interpolateMinErr.interr(text, err));\n        }\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#startSymbol\n     * @description\n     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.\n     *\n     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} start symbol.\n     */\n    $interpolate.startSymbol = function() {\n      return startSymbol;\n    };\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#endSymbol\n     * @description\n     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n     *\n     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} end symbol.\n     */\n    $interpolate.endSymbol = function() {\n      return endSymbol;\n    };\n\n    return $interpolate;\n  }];\n}\n\nfunction $IntervalProvider() {\n  this.$get = ['$rootScope', '$window', '$q', '$$q',\n       function($rootScope,   $window,   $q,   $$q) {\n    var intervals = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $interval\n      *\n      * @description\n      * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay`\n      * milliseconds.\n      *\n      * The return value of registering an interval function is a promise. This promise will be\n      * notified upon each tick of the interval, and will be resolved after `count` iterations, or\n      * run indefinitely if `count` is not defined. The value of the notification will be the\n      * number of iterations that have run.\n      * To cancel an interval, call `$interval.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n      * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n      * time.\n      *\n      * <div class=\"alert alert-warning\">\n      * **Note**: Intervals created by this service must be explicitly destroyed when you are finished\n      * with them.  In particular they are not automatically destroyed when a controller's scope or a\n      * directive's element are destroyed.\n      * You should take this into consideration and make sure to always cancel the interval at the\n      * appropriate moment.  See the example below for more details on how and when to do this.\n      * </div>\n      *\n      * @param {function()} fn A function that should be called repeatedly.\n      * @param {number} delay Number of milliseconds between each function call.\n      * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n      *   indefinitely.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @param {...*=} Pass additional parameters to the executed function.\n      * @returns {promise} A promise which will be notified on each iteration.\n      *\n      * @example\n      * <example module=\"intervalExample\">\n      * <file name=\"index.html\">\n      *   <script>\n      *     angular.module('intervalExample', [])\n      *       .controller('ExampleController', ['$scope', '$interval',\n      *         function($scope, $interval) {\n      *           $scope.format = 'M/d/yy h:mm:ss a';\n      *           $scope.blood_1 = 100;\n      *           $scope.blood_2 = 120;\n      *\n      *           var stop;\n      *           $scope.fight = function() {\n      *             // Don't start a new fight if we are already fighting\n      *             if ( angular.isDefined(stop) ) return;\n      *\n      *             stop = $interval(function() {\n      *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {\n      *                 $scope.blood_1 = $scope.blood_1 - 3;\n      *                 $scope.blood_2 = $scope.blood_2 - 4;\n      *               } else {\n      *                 $scope.stopFight();\n      *               }\n      *             }, 100);\n      *           };\n      *\n      *           $scope.stopFight = function() {\n      *             if (angular.isDefined(stop)) {\n      *               $interval.cancel(stop);\n      *               stop = undefined;\n      *             }\n      *           };\n      *\n      *           $scope.resetFight = function() {\n      *             $scope.blood_1 = 100;\n      *             $scope.blood_2 = 120;\n      *           };\n      *\n      *           $scope.$on('$destroy', function() {\n      *             // Make sure that the interval is destroyed too\n      *             $scope.stopFight();\n      *           });\n      *         }])\n      *       // Register the 'myCurrentTime' directive factory method.\n      *       // We inject $interval and dateFilter service since the factory method is DI.\n      *       .directive('myCurrentTime', ['$interval', 'dateFilter',\n      *         function($interval, dateFilter) {\n      *           // return the directive link function. (compile function not needed)\n      *           return function(scope, element, attrs) {\n      *             var format,  // date format\n      *                 stopTime; // so that we can cancel the time updates\n      *\n      *             // used to update the UI\n      *             function updateTime() {\n      *               element.text(dateFilter(new Date(), format));\n      *             }\n      *\n      *             // watch the expression, and update the UI on change.\n      *             scope.$watch(attrs.myCurrentTime, function(value) {\n      *               format = value;\n      *               updateTime();\n      *             });\n      *\n      *             stopTime = $interval(updateTime, 1000);\n      *\n      *             // listen on DOM destroy (removal) event, and cancel the next UI update\n      *             // to prevent updating time after the DOM element was removed.\n      *             element.on('$destroy', function() {\n      *               $interval.cancel(stopTime);\n      *             });\n      *           }\n      *         }]);\n      *   </script>\n      *\n      *   <div>\n      *     <div ng-controller=\"ExampleController\">\n      *       <label>Date format: <input ng-model=\"format\"></label> <hr/>\n      *       Current time is: <span my-current-time=\"format\"></span>\n      *       <hr/>\n      *       Blood 1 : <font color='red'>{{blood_1}}</font>\n      *       Blood 2 : <font color='red'>{{blood_2}}</font>\n      *       <button type=\"button\" data-ng-click=\"fight()\">Fight</button>\n      *       <button type=\"button\" data-ng-click=\"stopFight()\">StopFight</button>\n      *       <button type=\"button\" data-ng-click=\"resetFight()\">resetFight</button>\n      *     </div>\n      *   </div>\n      *\n      * </file>\n      * </example>\n      */\n    function interval(fn, delay, count, invokeApply) {\n      var hasParams = arguments.length > 4,\n          args = hasParams ? sliceArgs(arguments, 4) : [],\n          setInterval = $window.setInterval,\n          clearInterval = $window.clearInterval,\n          iteration = 0,\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = isDefined(count) ? count : 0;\n\n      promise.then(null, null, (!hasParams) ? fn : function() {\n        fn.apply(null, args);\n      });\n\n      promise.$$intervalId = setInterval(function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          deferred.resolve(iteration);\n          clearInterval(promise.$$intervalId);\n          delete intervals[promise.$$intervalId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n\n      }, delay);\n\n      intervals[promise.$$intervalId] = deferred;\n\n      return promise;\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $interval#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`.\n      *\n      * @param {Promise=} promise returned by the `$interval` function.\n      * @returns {boolean} Returns `true` if the task was successfully canceled.\n      */\n    interval.cancel = function(promise) {\n      if (promise && promise.$$intervalId in intervals) {\n        intervals[promise.$$intervalId].reject('canceled');\n        $window.clearInterval(promise.$$intervalId);\n        delete intervals[promise.$$intervalId];\n        return true;\n      }\n      return false;\n    };\n\n    return interval;\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $locale\n *\n * @description\n * $locale service provides localization rules for various Angular components. As of right now the\n * only public api is:\n *\n * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)\n */\n\nvar PATH_MATCH = /^([^\\?#]*)(\\?([^#]*))?(#(.*))?$/,\n    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};\nvar $locationMinErr = minErr('$location');\n\n\n/**\n * Encode path using encodeUriSegment, ignoring forward slashes\n *\n * @param {string} path Path to encode\n * @returns {string}\n */\nfunction encodePath(path) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    segments[i] = encodeUriSegment(segments[i]);\n  }\n\n  return segments.join('/');\n}\n\nfunction parseAbsoluteUrl(absoluteUrl, locationObj) {\n  var parsedUrl = urlResolve(absoluteUrl);\n\n  locationObj.$$protocol = parsedUrl.protocol;\n  locationObj.$$host = parsedUrl.hostname;\n  locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;\n}\n\n\nfunction parseAppUrl(relativeUrl, locationObj) {\n  var prefixed = (relativeUrl.charAt(0) !== '/');\n  if (prefixed) {\n    relativeUrl = '/' + relativeUrl;\n  }\n  var match = urlResolve(relativeUrl);\n  locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ?\n      match.pathname.substring(1) : match.pathname);\n  locationObj.$$search = parseKeyValue(match.search);\n  locationObj.$$hash = decodeURIComponent(match.hash);\n\n  // make sure path starts with '/';\n  if (locationObj.$$path && locationObj.$$path.charAt(0) != '/') {\n    locationObj.$$path = '/' + locationObj.$$path;\n  }\n}\n\n\n/**\n *\n * @param {string} begin\n * @param {string} whole\n * @returns {string} returns text from whole after begin or undefined if it does not begin with\n *                   expected string.\n */\nfunction beginsWith(begin, whole) {\n  if (whole.indexOf(begin) === 0) {\n    return whole.substr(begin.length);\n  }\n}\n\n\nfunction stripHash(url) {\n  var index = url.indexOf('#');\n  return index == -1 ? url : url.substr(0, index);\n}\n\nfunction trimEmptyHash(url) {\n  return url.replace(/(#.+)|#$/, '$1');\n}\n\n\nfunction stripFile(url) {\n  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);\n}\n\n/* return the server only (scheme://host:port) */\nfunction serverBase(url) {\n  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));\n}\n\n\n/**\n * LocationHtml5Url represents an url\n * This object is exposed as $location service when HTML5 mode is enabled and supported\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} basePrefix url path prefix\n */\nfunction LocationHtml5Url(appBase, appBaseNoFile, basePrefix) {\n  this.$$html5 = true;\n  basePrefix = basePrefix || '';\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given html5 (regular) url string into properties\n   * @param {string} url HTML5 url\n   * @private\n   */\n  this.$$parse = function(url) {\n    var pathUrl = beginsWith(appBaseNoFile, url);\n    if (!isString(pathUrl)) {\n      throw $locationMinErr('ipthprfx', 'Invalid url \"{0}\", missing path prefix \"{1}\".', url,\n          appBaseNoFile);\n    }\n\n    parseAppUrl(pathUrl, this);\n\n    if (!this.$$path) {\n      this.$$path = '/';\n    }\n\n    this.$$compose();\n  };\n\n  /**\n   * Compose url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/'\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n    var appUrl, prevAppUrl;\n    var rewrittenUrl;\n\n    if (isDefined(appUrl = beginsWith(appBase, url))) {\n      prevAppUrl = appUrl;\n      if (isDefined(appUrl = beginsWith(basePrefix, appUrl))) {\n        rewrittenUrl = appBaseNoFile + (beginsWith('/', appUrl) || appUrl);\n      } else {\n        rewrittenUrl = appBase + prevAppUrl;\n      }\n    } else if (isDefined(appUrl = beginsWith(appBaseNoFile, url))) {\n      rewrittenUrl = appBaseNoFile + appUrl;\n    } else if (appBaseNoFile == url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents url\n * This object is exposed as $location service when developer doesn't opt into html5 mode.\n * It also serves as the base class for html5 mode fallback on legacy browsers.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) {\n\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given hashbang url into properties\n   * @param {string} url Hashbang url\n   * @private\n   */\n  this.$$parse = function(url) {\n    var withoutBaseUrl = beginsWith(appBase, url) || beginsWith(appBaseNoFile, url);\n    var withoutHashUrl;\n\n    if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') {\n\n      // The rest of the url starts with a hash so we have\n      // got either a hashbang path or a plain hash fragment\n      withoutHashUrl = beginsWith(hashPrefix, withoutBaseUrl);\n      if (isUndefined(withoutHashUrl)) {\n        // There was no hashbang prefix so we just have a hash fragment\n        withoutHashUrl = withoutBaseUrl;\n      }\n\n    } else {\n      // There was no hashbang path nor hash fragment:\n      // If we are in HTML5 mode we use what is left as the path;\n      // Otherwise we ignore what is left\n      if (this.$$html5) {\n        withoutHashUrl = withoutBaseUrl;\n      } else {\n        withoutHashUrl = '';\n        if (isUndefined(withoutBaseUrl)) {\n          appBase = url;\n          this.replace();\n        }\n      }\n    }\n\n    parseAppUrl(withoutHashUrl, this);\n\n    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);\n\n    this.$$compose();\n\n    /*\n     * In Windows, on an anchor node on documents loaded from\n     * the filesystem, the browser will return a pathname\n     * prefixed with the drive name ('/C:/path') when a\n     * pathname without a drive is set:\n     *  * a.setAttribute('href', '/foo')\n     *   * a.pathname === '/C:/foo' //true\n     *\n     * Inside of Angular, we're always using pathnames that\n     * do not include drive names for routing.\n     */\n    function removeWindowsDriveName(path, url, base) {\n      /*\n      Matches paths for file protocol on windows,\n      such as /C:/foo/bar, and captures only /foo/bar.\n      */\n      var windowsFilePathExp = /^\\/[A-Z]:(\\/.*)/;\n\n      var firstPathSegmentMatch;\n\n      //Get the relative path from the input URL.\n      if (url.indexOf(base) === 0) {\n        url = url.replace(base, '');\n      }\n\n      // The input URL intentionally contains a first path segment that ends with a colon.\n      if (windowsFilePathExp.exec(url)) {\n        return path;\n      }\n\n      firstPathSegmentMatch = windowsFilePathExp.exec(path);\n      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;\n    }\n  };\n\n  /**\n   * Compose hashbang url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (stripHash(appBase) == stripHash(url)) {\n      this.$$parse(url);\n      return true;\n    }\n    return false;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents url\n * This object is exposed as $location service when html5 history api is enabled but the browser\n * does not support it.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) {\n  this.$$html5 = true;\n  LocationHashbangUrl.apply(this, arguments);\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n\n    var rewrittenUrl;\n    var appUrl;\n\n    if (appBase == stripHash(url)) {\n      rewrittenUrl = url;\n    } else if ((appUrl = beginsWith(appBaseNoFile, url))) {\n      rewrittenUrl = appBase + hashPrefix + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#'\n    this.$$absUrl = appBase + hashPrefix + this.$$url;\n  };\n\n}\n\n\nvar locationPrototype = {\n\n  /**\n   * Are we in html5 mode?\n   * @private\n   */\n  $$html5: false,\n\n  /**\n   * Has any change been replacing?\n   * @private\n   */\n  $$replace: false,\n\n  /**\n   * @ngdoc method\n   * @name $location#absUrl\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return full url representation with all segments encoded according to rules specified in\n   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var absUrl = $location.absUrl();\n   * // => \"http://example.com/#/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @return {string} full url\n   */\n  absUrl: locationGetter('$$absUrl'),\n\n  /**\n   * @ngdoc method\n   * @name $location#url\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return url (e.g. `/path?a=b#hash`) when called without any parameter.\n   *\n   * Change path, search and hash, when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var url = $location.url();\n   * // => \"/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @param {string=} url New url without base prefix (e.g. `/path?a=b#hash`)\n   * @return {string} url\n   */\n  url: function(url) {\n    if (isUndefined(url)) {\n      return this.$$url;\n    }\n\n    var match = PATH_MATCH.exec(url);\n    if (match[1] || url === '') this.path(decodeURIComponent(match[1]));\n    if (match[2] || match[1] || url === '') this.search(match[3] || '');\n    this.hash(match[5] || '');\n\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#protocol\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return protocol of current url.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var protocol = $location.protocol();\n   * // => \"http\"\n   * ```\n   *\n   * @return {string} protocol of current url\n   */\n  protocol: locationGetter('$$protocol'),\n\n  /**\n   * @ngdoc method\n   * @name $location#host\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return host of current url.\n   *\n   * Note: compared to the non-angular version `location.host` which returns `hostname:port`, this returns the `hostname` portion only.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var host = $location.host();\n   * // => \"example.com\"\n   *\n   * // given url http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo\n   * host = $location.host();\n   * // => \"example.com\"\n   * host = location.host;\n   * // => \"example.com:8080\"\n   * ```\n   *\n   * @return {string} host of current url.\n   */\n  host: locationGetter('$$host'),\n\n  /**\n   * @ngdoc method\n   * @name $location#port\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return port of current url.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var port = $location.port();\n   * // => 80\n   * ```\n   *\n   * @return {Number} port\n   */\n  port: locationGetter('$$port'),\n\n  /**\n   * @ngdoc method\n   * @name $location#path\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return path of current url when called without any parameter.\n   *\n   * Change path when called with parameter and return `$location`.\n   *\n   * Note: Path should always begin with forward slash (/), this method will add the forward slash\n   * if it is missing.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var path = $location.path();\n   * // => \"/some/path\"\n   * ```\n   *\n   * @param {(string|number)=} path New path\n   * @return {(string|object)} path if called with no parameters, or `$location` if called with a parameter\n   */\n  path: locationGetterSetter('$$path', function(path) {\n    path = path !== null ? path.toString() : '';\n    return path.charAt(0) == '/' ? path : '/' + path;\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#search\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return search part (as object) of current url when called without any parameter.\n   *\n   * Change search part when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var searchObject = $location.search();\n   * // => {foo: 'bar', baz: 'xoxo'}\n   *\n   * // set foo to 'yipee'\n   * $location.search('foo', 'yipee');\n   * // $location.search() => {foo: 'yipee', baz: 'xoxo'}\n   * ```\n   *\n   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or\n   * hash object.\n   *\n   * When called with a single argument the method acts as a setter, setting the `search` component\n   * of `$location` to the specified value.\n   *\n   * If the argument is a hash object containing an array of values, these values will be encoded\n   * as duplicate search parameters in the url.\n   *\n   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`\n   * will override only a single search property.\n   *\n   * If `paramValue` is an array, it will override the property of the `search` component of\n   * `$location` specified via the first argument.\n   *\n   * If `paramValue` is `null`, the property specified via the first argument will be deleted.\n   *\n   * If `paramValue` is `true`, the property specified via the first argument will be added with no\n   * value nor trailing equal sign.\n   *\n   * @return {Object} If called with no arguments returns the parsed `search` object. If called with\n   * one or more arguments returns `$location` object itself.\n   */\n  search: function(search, paramValue) {\n    switch (arguments.length) {\n      case 0:\n        return this.$$search;\n      case 1:\n        if (isString(search) || isNumber(search)) {\n          search = search.toString();\n          this.$$search = parseKeyValue(search);\n        } else if (isObject(search)) {\n          search = copy(search, {});\n          // remove object undefined or null properties\n          forEach(search, function(value, key) {\n            if (value == null) delete search[key];\n          });\n\n          this.$$search = search;\n        } else {\n          throw $locationMinErr('isrcharg',\n              'The first argument of the `$location#search()` call must be a string or an object.');\n        }\n        break;\n      default:\n        if (isUndefined(paramValue) || paramValue === null) {\n          delete this.$$search[search];\n        } else {\n          this.$$search[search] = paramValue;\n        }\n    }\n\n    this.$$compose();\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#hash\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Returns the hash fragment when called without any parameters.\n   *\n   * Changes the hash fragment when called with a parameter and returns `$location`.\n   *\n   *\n   * ```js\n   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue\n   * var hash = $location.hash();\n   * // => \"hashValue\"\n   * ```\n   *\n   * @param {(string|number)=} hash New hash fragment\n   * @return {string} hash\n   */\n  hash: locationGetterSetter('$$hash', function(hash) {\n    return hash !== null ? hash.toString() : '';\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#replace\n   *\n   * @description\n   * If called, all changes to $location during the current `$digest` will replace the current history\n   * record, instead of adding a new one.\n   */\n  replace: function() {\n    this.$$replace = true;\n    return this;\n  }\n};\n\nforEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) {\n  Location.prototype = Object.create(locationPrototype);\n\n  /**\n   * @ngdoc method\n   * @name $location#state\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return the history state object when called without any parameter.\n   *\n   * Change the history state object when called with one parameter and return `$location`.\n   * The state object is later passed to `pushState` or `replaceState`.\n   *\n   * NOTE: This method is supported only in HTML5 mode and only in browsers supporting\n   * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support\n   * older browsers (like IE9 or Android < 4.0), don't use this method.\n   *\n   * @param {object=} state State object for pushState or replaceState\n   * @return {object} state\n   */\n  Location.prototype.state = function(state) {\n    if (!arguments.length) {\n      return this.$$state;\n    }\n\n    if (Location !== LocationHtml5Url || !this.$$html5) {\n      throw $locationMinErr('nostate', 'History API state support is available only ' +\n        'in HTML5 mode and only in browsers supporting HTML5 History API');\n    }\n    // The user might modify `stateObject` after invoking `$location.state(stateObject)`\n    // but we're changing the $$state reference to $browser.state() during the $digest\n    // so the modification window is narrow.\n    this.$$state = isUndefined(state) ? null : state;\n\n    return this;\n  };\n});\n\n\nfunction locationGetter(property) {\n  return function() {\n    return this[property];\n  };\n}\n\n\nfunction locationGetterSetter(property, preprocess) {\n  return function(value) {\n    if (isUndefined(value)) {\n      return this[property];\n    }\n\n    this[property] = preprocess(value);\n    this.$$compose();\n\n    return this;\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $location\n *\n * @requires $rootElement\n *\n * @description\n * The $location service parses the URL in the browser address bar (based on the\n * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL\n * available to your application. Changes to the URL in the address bar are reflected into\n * $location service and changes to $location are reflected into the browser address bar.\n *\n * **The $location service:**\n *\n * - Exposes the current URL in the browser address bar, so you can\n *   - Watch and observe the URL.\n *   - Change the URL.\n * - Synchronizes the URL with the browser when the user\n *   - Changes the address bar.\n *   - Clicks the back or forward button (or clicks a History link).\n *   - Clicks on a link.\n * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).\n *\n * For more information see {@link guide/$location Developer Guide: Using $location}\n */\n\n/**\n * @ngdoc provider\n * @name $locationProvider\n * @description\n * Use the `$locationProvider` to configure how the application deep linking paths are stored.\n */\nfunction $LocationProvider() {\n  var hashPrefix = '',\n      html5Mode = {\n        enabled: false,\n        requireBase: true,\n        rewriteLinks: true\n      };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#hashPrefix\n   * @description\n   * @param {string=} prefix Prefix for hash part (containing path and search)\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.hashPrefix = function(prefix) {\n    if (isDefined(prefix)) {\n      hashPrefix = prefix;\n      return this;\n    } else {\n      return hashPrefix;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#html5Mode\n   * @description\n   * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value.\n   *   If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported\n   *   properties:\n   *   - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to\n   *     change urls where supported. Will fall back to hash-prefixed paths in browsers that do not\n   *     support `pushState`.\n   *   - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies\n   *     whether or not a <base> tag is required to be present. If `enabled` and `requireBase` are\n   *     true, and a base tag is not present, an error will be thrown when `$location` is injected.\n   *     See the {@link guide/$location $location guide for more information}\n   *   - **rewriteLinks** - `{boolean}` - (default: `true`) When html5Mode is enabled,\n   *     enables/disables url rewriting for relative links.\n   *\n   * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter\n   */\n  this.html5Mode = function(mode) {\n    if (isBoolean(mode)) {\n      html5Mode.enabled = mode;\n      return this;\n    } else if (isObject(mode)) {\n\n      if (isBoolean(mode.enabled)) {\n        html5Mode.enabled = mode.enabled;\n      }\n\n      if (isBoolean(mode.requireBase)) {\n        html5Mode.requireBase = mode.requireBase;\n      }\n\n      if (isBoolean(mode.rewriteLinks)) {\n        html5Mode.rewriteLinks = mode.rewriteLinks;\n      }\n\n      return this;\n    } else {\n      return html5Mode;\n    }\n  };\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeStart\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted before a URL will change.\n   *\n   * This change can be prevented by calling\n   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more\n   * details about event object. Upon successful change\n   * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeSuccess\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted after a URL was changed.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window',\n      function($rootScope, $browser, $sniffer, $rootElement, $window) {\n    var $location,\n        LocationMode,\n        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''\n        initialUrl = $browser.url(),\n        appBase;\n\n    if (html5Mode.enabled) {\n      if (!baseHref && html5Mode.requireBase) {\n        throw $locationMinErr('nobase',\n          \"$location in HTML5 mode requires a <base> tag to be present!\");\n      }\n      appBase = serverBase(initialUrl) + (baseHref || '/');\n      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;\n    } else {\n      appBase = stripHash(initialUrl);\n      LocationMode = LocationHashbangUrl;\n    }\n    var appBaseNoFile = stripFile(appBase);\n\n    $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix);\n    $location.$$parseLinkUrl(initialUrl, initialUrl);\n\n    $location.$$state = $browser.state();\n\n    var IGNORE_URI_REGEXP = /^\\s*(javascript|mailto):/i;\n\n    function setBrowserUrlWithFallback(url, replace, state) {\n      var oldUrl = $location.url();\n      var oldState = $location.$$state;\n      try {\n        $browser.url(url, replace, state);\n\n        // Make sure $location.state() returns referentially identical (not just deeply equal)\n        // state object; this makes possible quick checking if the state changed in the digest\n        // loop. Checking deep equality would be too expensive.\n        $location.$$state = $browser.state();\n      } catch (e) {\n        // Restore old values if pushState fails\n        $location.url(oldUrl);\n        $location.$$state = oldState;\n\n        throw e;\n      }\n    }\n\n    $rootElement.on('click', function(event) {\n      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)\n      // currently we open nice url link and redirect then\n\n      if (!html5Mode.rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which == 2 || event.button == 2) return;\n\n      var elm = jqLite(event.target);\n\n      // traverse the DOM up to find first A tag\n      while (nodeName_(elm[0]) !== 'a') {\n        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)\n        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;\n      }\n\n      var absHref = elm.prop('href');\n      // get the actual href attribute - see\n      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx\n      var relHref = elm.attr('href') || elm.attr('xlink:href');\n\n      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {\n        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during\n        // an animation.\n        absHref = urlResolve(absHref.animVal).href;\n      }\n\n      // Ignore when url is started with javascript: or mailto:\n      if (IGNORE_URI_REGEXP.test(absHref)) return;\n\n      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {\n        if ($location.$$parseLinkUrl(absHref, relHref)) {\n          // We do a preventDefault for all urls that are part of the angular application,\n          // in html5mode and also without, so that we are able to abort navigation without\n          // getting double entries in the location history.\n          event.preventDefault();\n          // update location manually\n          if ($location.absUrl() != $browser.url()) {\n            $rootScope.$apply();\n            // hack to work around FF6 bug 684208 when scenario runner clicks on links\n            $window.angular['ff-684208-preventDefault'] = true;\n          }\n        }\n      }\n    });\n\n\n    // rewrite hashbang url <> html5 url\n    if (trimEmptyHash($location.absUrl()) != trimEmptyHash(initialUrl)) {\n      $browser.url($location.absUrl(), true);\n    }\n\n    var initializing = true;\n\n    // update $location when $browser url changes\n    $browser.onUrlChange(function(newUrl, newState) {\n\n      if (isUndefined(beginsWith(appBaseNoFile, newUrl))) {\n        // If we are navigating outside of the app then force a reload\n        $window.location.href = newUrl;\n        return;\n      }\n\n      $rootScope.$evalAsync(function() {\n        var oldUrl = $location.absUrl();\n        var oldState = $location.$$state;\n        var defaultPrevented;\n        newUrl = trimEmptyHash(newUrl);\n        $location.$$parse(newUrl);\n        $location.$$state = newState;\n\n        defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n            newState, oldState).defaultPrevented;\n\n        // if the location was changed by a `$locationChangeStart` handler then stop\n        // processing this location change\n        if ($location.absUrl() !== newUrl) return;\n\n        if (defaultPrevented) {\n          $location.$$parse(oldUrl);\n          $location.$$state = oldState;\n          setBrowserUrlWithFallback(oldUrl, false, oldState);\n        } else {\n          initializing = false;\n          afterLocationChange(oldUrl, oldState);\n        }\n      });\n      if (!$rootScope.$$phase) $rootScope.$digest();\n    });\n\n    // update browser\n    $rootScope.$watch(function $locationWatch() {\n      var oldUrl = trimEmptyHash($browser.url());\n      var newUrl = trimEmptyHash($location.absUrl());\n      var oldState = $browser.state();\n      var currentReplace = $location.$$replace;\n      var urlOrStateChanged = oldUrl !== newUrl ||\n        ($location.$$html5 && $sniffer.history && oldState !== $location.$$state);\n\n      if (initializing || urlOrStateChanged) {\n        initializing = false;\n\n        $rootScope.$evalAsync(function() {\n          var newUrl = $location.absUrl();\n          var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n              $location.$$state, oldState).defaultPrevented;\n\n          // if the location was changed by a `$locationChangeStart` handler then stop\n          // processing this location change\n          if ($location.absUrl() !== newUrl) return;\n\n          if (defaultPrevented) {\n            $location.$$parse(oldUrl);\n            $location.$$state = oldState;\n          } else {\n            if (urlOrStateChanged) {\n              setBrowserUrlWithFallback(newUrl, currentReplace,\n                                        oldState === $location.$$state ? null : $location.$$state);\n            }\n            afterLocationChange(oldUrl, oldState);\n          }\n        });\n      }\n\n      $location.$$replace = false;\n\n      // we don't need to return anything because $evalAsync will make the digest loop dirty when\n      // there is a change\n    });\n\n    return $location;\n\n    function afterLocationChange(oldUrl, oldState) {\n      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl,\n        $location.$$state, oldState);\n    }\n}];\n}\n\n/**\n * @ngdoc service\n * @name $log\n * @requires $window\n *\n * @description\n * Simple service for logging. Default implementation safely writes the message\n * into the browser's console (if present).\n *\n * The main purpose of this service is to simplify debugging and troubleshooting.\n *\n * The default is to log `debug` messages. You can use\n * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.\n *\n * @example\n   <example module=\"logExample\">\n     <file name=\"script.js\">\n       angular.module('logExample', [])\n         .controller('LogController', ['$scope', '$log', function($scope, $log) {\n           $scope.$log = $log;\n           $scope.message = 'Hello World!';\n         }]);\n     </file>\n     <file name=\"index.html\">\n       <div ng-controller=\"LogController\">\n         <p>Reload this page with open console, enter text and hit the log button...</p>\n         <label>Message:\n         <input type=\"text\" ng-model=\"message\" /></label>\n         <button ng-click=\"$log.log(message)\">log</button>\n         <button ng-click=\"$log.warn(message)\">warn</button>\n         <button ng-click=\"$log.info(message)\">info</button>\n         <button ng-click=\"$log.error(message)\">error</button>\n         <button ng-click=\"$log.debug(message)\">debug</button>\n       </div>\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc provider\n * @name $logProvider\n * @description\n * Use the `$logProvider` to configure how the application logs messages\n */\nfunction $LogProvider() {\n  var debug = true,\n      self = this;\n\n  /**\n   * @ngdoc method\n   * @name $logProvider#debugEnabled\n   * @description\n   * @param {boolean=} flag enable or disable debug level messages\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.debugEnabled = function(flag) {\n    if (isDefined(flag)) {\n      debug = flag;\n    return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = ['$window', function($window) {\n    return {\n      /**\n       * @ngdoc method\n       * @name $log#log\n       *\n       * @description\n       * Write a log message\n       */\n      log: consoleLog('log'),\n\n      /**\n       * @ngdoc method\n       * @name $log#info\n       *\n       * @description\n       * Write an information message\n       */\n      info: consoleLog('info'),\n\n      /**\n       * @ngdoc method\n       * @name $log#warn\n       *\n       * @description\n       * Write a warning message\n       */\n      warn: consoleLog('warn'),\n\n      /**\n       * @ngdoc method\n       * @name $log#error\n       *\n       * @description\n       * Write an error message\n       */\n      error: consoleLog('error'),\n\n      /**\n       * @ngdoc method\n       * @name $log#debug\n       *\n       * @description\n       * Write a debug message\n       */\n      debug: (function() {\n        var fn = consoleLog('debug');\n\n        return function() {\n          if (debug) {\n            fn.apply(self, arguments);\n          }\n        };\n      }())\n    };\n\n    function formatError(arg) {\n      if (arg instanceof Error) {\n        if (arg.stack) {\n          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)\n              ? 'Error: ' + arg.message + '\\n' + arg.stack\n              : arg.stack;\n        } else if (arg.sourceURL) {\n          arg = arg.message + '\\n' + arg.sourceURL + ':' + arg.line;\n        }\n      }\n      return arg;\n    }\n\n    function consoleLog(type) {\n      var console = $window.console || {},\n          logFn = console[type] || console.log || noop,\n          hasApply = false;\n\n      // Note: reading logFn.apply throws an error in IE11 in IE8 document mode.\n      // The reason behind this is that console.log has type \"object\" in IE8...\n      try {\n        hasApply = !!logFn.apply;\n      } catch (e) {}\n\n      if (hasApply) {\n        return function() {\n          var args = [];\n          forEach(arguments, function(arg) {\n            args.push(formatError(arg));\n          });\n          return logFn.apply(console, args);\n        };\n      }\n\n      // we are IE which either doesn't have window.console => this is noop and we do nothing,\n      // or we are IE where console.log doesn't have apply so we log at least first 2 args\n      return function(arg1, arg2) {\n        logFn(arg1, arg2 == null ? '' : arg2);\n      };\n    }\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $parseMinErr = minErr('$parse');\n\n// Sandboxing Angular Expressions\n// ------------------------------\n// Angular expressions are generally considered safe because these expressions only have direct\n// access to `$scope` and locals. However, one can obtain the ability to execute arbitrary JS code by\n// obtaining a reference to native JS functions such as the Function constructor.\n//\n// As an example, consider the following Angular expression:\n//\n//   {}.toString.constructor('alert(\"evil JS code\")')\n//\n// This sandboxing technique is not perfect and doesn't aim to be. The goal is to prevent exploits\n// against the expression language, but not to prevent exploits that were enabled by exposing\n// sensitive JavaScript or browser APIs on Scope. Exposing such objects on a Scope is never a good\n// practice and therefore we are not even trying to protect against interaction with an object\n// explicitly exposed in this way.\n//\n// In general, it is not possible to access a Window object from an angular expression unless a\n// window or some DOM object that has a reference to window is published onto a Scope.\n// Similarly we prevent invocations of function known to be dangerous, as well as assignments to\n// native objects.\n//\n// See https://docs.angularjs.org/guide/security\n\n\nfunction ensureSafeMemberName(name, fullExpression) {\n  if (name === \"__defineGetter__\" || name === \"__defineSetter__\"\n      || name === \"__lookupGetter__\" || name === \"__lookupSetter__\"\n      || name === \"__proto__\") {\n    throw $parseMinErr('isecfld',\n        'Attempting to access a disallowed field in Angular expressions! '\n        + 'Expression: {0}', fullExpression);\n  }\n  return name;\n}\n\nfunction getStringValue(name, fullExpression) {\n  // From the JavaScript docs:\n  // Property names must be strings. This means that non-string objects cannot be used\n  // as keys in an object. Any non-string object, including a number, is typecasted\n  // into a string via the toString method.\n  //\n  // So, to ensure that we are checking the same `name` that JavaScript would use,\n  // we cast it to a string, if possible.\n  // Doing `name + ''` can cause a repl error if the result to `toString` is not a string,\n  // this is, this will handle objects that misbehave.\n  name = name + '';\n  if (!isString(name)) {\n    throw $parseMinErr('iseccst',\n        'Cannot convert object to primitive value! '\n        + 'Expression: {0}', fullExpression);\n  }\n  return name;\n}\n\nfunction ensureSafeObject(obj, fullExpression) {\n  // nifty check if obj is Function that is fast and works across iframes and other contexts\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n          'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isWindow(obj)\n        obj.window === obj) {\n      throw $parseMinErr('isecwindow',\n          'Referencing the Window in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isElement(obj)\n        obj.children && (obj.nodeName || (obj.prop && obj.attr && obj.find))) {\n      throw $parseMinErr('isecdom',\n          'Referencing DOM nodes in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// block Object so that we can't get hold of dangerous Object.* methods\n        obj === Object) {\n      throw $parseMinErr('isecobj',\n          'Referencing Object in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    }\n  }\n  return obj;\n}\n\nvar CALL = Function.prototype.call;\nvar APPLY = Function.prototype.apply;\nvar BIND = Function.prototype.bind;\n\nfunction ensureSafeFunction(obj, fullExpression) {\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n        'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    } else if (obj === CALL || obj === APPLY || obj === BIND) {\n      throw $parseMinErr('isecff',\n        'Referencing call, apply or bind in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    }\n  }\n}\n\nfunction ensureSafeAssignContext(obj, fullExpression) {\n  if (obj) {\n    if (obj === (0).constructor || obj === (false).constructor || obj === ''.constructor ||\n        obj === {}.constructor || obj === [].constructor || obj === Function.constructor) {\n      throw $parseMinErr('isecaf',\n        'Assigning to a constructor is disallowed! Expression: {0}', fullExpression);\n    }\n  }\n}\n\nvar OPERATORS = createMap();\nforEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; });\nvar ESCAPE = {\"n\":\"\\n\", \"f\":\"\\f\", \"r\":\"\\r\", \"t\":\"\\t\", \"v\":\"\\v\", \"'\":\"'\", '\"':'\"'};\n\n\n/////////////////////////////////////////\n\n\n/**\n * @constructor\n */\nvar Lexer = function(options) {\n  this.options = options;\n};\n\nLexer.prototype = {\n  constructor: Lexer,\n\n  lex: function(text) {\n    this.text = text;\n    this.index = 0;\n    this.tokens = [];\n\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (ch === '\"' || ch === \"'\") {\n        this.readString(ch);\n      } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) {\n        this.readNumber();\n      } else if (this.isIdent(ch)) {\n        this.readIdent();\n      } else if (this.is(ch, '(){}[].,;:?')) {\n        this.tokens.push({index: this.index, text: ch});\n        this.index++;\n      } else if (this.isWhitespace(ch)) {\n        this.index++;\n      } else {\n        var ch2 = ch + this.peek();\n        var ch3 = ch2 + this.peek(2);\n        var op1 = OPERATORS[ch];\n        var op2 = OPERATORS[ch2];\n        var op3 = OPERATORS[ch3];\n        if (op1 || op2 || op3) {\n          var token = op3 ? ch3 : (op2 ? ch2 : ch);\n          this.tokens.push({index: this.index, text: token, operator: true});\n          this.index += token.length;\n        } else {\n          this.throwError('Unexpected next character ', this.index, this.index + 1);\n        }\n      }\n    }\n    return this.tokens;\n  },\n\n  is: function(ch, chars) {\n    return chars.indexOf(ch) !== -1;\n  },\n\n  peek: function(i) {\n    var num = i || 1;\n    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;\n  },\n\n  isNumber: function(ch) {\n    return ('0' <= ch && ch <= '9') && typeof ch === \"string\";\n  },\n\n  isWhitespace: function(ch) {\n    // IE treats non-breaking space as \\u00A0\n    return (ch === ' ' || ch === '\\r' || ch === '\\t' ||\n            ch === '\\n' || ch === '\\v' || ch === '\\u00A0');\n  },\n\n  isIdent: function(ch) {\n    return ('a' <= ch && ch <= 'z' ||\n            'A' <= ch && ch <= 'Z' ||\n            '_' === ch || ch === '$');\n  },\n\n  isExpOperator: function(ch) {\n    return (ch === '-' || ch === '+' || this.isNumber(ch));\n  },\n\n  throwError: function(error, start, end) {\n    end = end || this.index;\n    var colStr = (isDefined(start)\n            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'\n            : ' ' + end);\n    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',\n        error, colStr, this.text);\n  },\n\n  readNumber: function() {\n    var number = '';\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = lowercase(this.text.charAt(this.index));\n      if (ch == '.' || this.isNumber(ch)) {\n        number += ch;\n      } else {\n        var peekCh = this.peek();\n        if (ch == 'e' && this.isExpOperator(peekCh)) {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            peekCh && this.isNumber(peekCh) &&\n            number.charAt(number.length - 1) == 'e') {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            (!peekCh || !this.isNumber(peekCh)) &&\n            number.charAt(number.length - 1) == 'e') {\n          this.throwError('Invalid exponent');\n        } else {\n          break;\n        }\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: number,\n      constant: true,\n      value: Number(number)\n    });\n  },\n\n  readIdent: function() {\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (!(this.isIdent(ch) || this.isNumber(ch))) {\n        break;\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: this.text.slice(start, this.index),\n      identifier: true\n    });\n  },\n\n  readString: function(quote) {\n    var start = this.index;\n    this.index++;\n    var string = '';\n    var rawString = quote;\n    var escape = false;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      rawString += ch;\n      if (escape) {\n        if (ch === 'u') {\n          var hex = this.text.substring(this.index + 1, this.index + 5);\n          if (!hex.match(/[\\da-f]{4}/i)) {\n            this.throwError('Invalid unicode escape [\\\\u' + hex + ']');\n          }\n          this.index += 4;\n          string += String.fromCharCode(parseInt(hex, 16));\n        } else {\n          var rep = ESCAPE[ch];\n          string = string + (rep || ch);\n        }\n        escape = false;\n      } else if (ch === '\\\\') {\n        escape = true;\n      } else if (ch === quote) {\n        this.index++;\n        this.tokens.push({\n          index: start,\n          text: rawString,\n          constant: true,\n          value: string\n        });\n        return;\n      } else {\n        string += ch;\n      }\n      this.index++;\n    }\n    this.throwError('Unterminated quote', start);\n  }\n};\n\nvar AST = function(lexer, options) {\n  this.lexer = lexer;\n  this.options = options;\n};\n\nAST.Program = 'Program';\nAST.ExpressionStatement = 'ExpressionStatement';\nAST.AssignmentExpression = 'AssignmentExpression';\nAST.ConditionalExpression = 'ConditionalExpression';\nAST.LogicalExpression = 'LogicalExpression';\nAST.BinaryExpression = 'BinaryExpression';\nAST.UnaryExpression = 'UnaryExpression';\nAST.CallExpression = 'CallExpression';\nAST.MemberExpression = 'MemberExpression';\nAST.Identifier = 'Identifier';\nAST.Literal = 'Literal';\nAST.ArrayExpression = 'ArrayExpression';\nAST.Property = 'Property';\nAST.ObjectExpression = 'ObjectExpression';\nAST.ThisExpression = 'ThisExpression';\n\n// Internal use only\nAST.NGValueParameter = 'NGValueParameter';\n\nAST.prototype = {\n  ast: function(text) {\n    this.text = text;\n    this.tokens = this.lexer.lex(text);\n\n    var value = this.program();\n\n    if (this.tokens.length !== 0) {\n      this.throwError('is an unexpected token', this.tokens[0]);\n    }\n\n    return value;\n  },\n\n  program: function() {\n    var body = [];\n    while (true) {\n      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))\n        body.push(this.expressionStatement());\n      if (!this.expect(';')) {\n        return { type: AST.Program, body: body};\n      }\n    }\n  },\n\n  expressionStatement: function() {\n    return { type: AST.ExpressionStatement, expression: this.filterChain() };\n  },\n\n  filterChain: function() {\n    var left = this.expression();\n    var token;\n    while ((token = this.expect('|'))) {\n      left = this.filter(left);\n    }\n    return left;\n  },\n\n  expression: function() {\n    return this.assignment();\n  },\n\n  assignment: function() {\n    var result = this.ternary();\n    if (this.expect('=')) {\n      result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='};\n    }\n    return result;\n  },\n\n  ternary: function() {\n    var test = this.logicalOR();\n    var alternate;\n    var consequent;\n    if (this.expect('?')) {\n      alternate = this.expression();\n      if (this.consume(':')) {\n        consequent = this.expression();\n        return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent};\n      }\n    }\n    return test;\n  },\n\n  logicalOR: function() {\n    var left = this.logicalAND();\n    while (this.expect('||')) {\n      left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() };\n    }\n    return left;\n  },\n\n  logicalAND: function() {\n    var left = this.equality();\n    while (this.expect('&&')) {\n      left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()};\n    }\n    return left;\n  },\n\n  equality: function() {\n    var left = this.relational();\n    var token;\n    while ((token = this.expect('==','!=','===','!=='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() };\n    }\n    return left;\n  },\n\n  relational: function() {\n    var left = this.additive();\n    var token;\n    while ((token = this.expect('<', '>', '<=', '>='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() };\n    }\n    return left;\n  },\n\n  additive: function() {\n    var left = this.multiplicative();\n    var token;\n    while ((token = this.expect('+','-'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() };\n    }\n    return left;\n  },\n\n  multiplicative: function() {\n    var left = this.unary();\n    var token;\n    while ((token = this.expect('*','/','%'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() };\n    }\n    return left;\n  },\n\n  unary: function() {\n    var token;\n    if ((token = this.expect('+', '-', '!'))) {\n      return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() };\n    } else {\n      return this.primary();\n    }\n  },\n\n  primary: function() {\n    var primary;\n    if (this.expect('(')) {\n      primary = this.filterChain();\n      this.consume(')');\n    } else if (this.expect('[')) {\n      primary = this.arrayDeclaration();\n    } else if (this.expect('{')) {\n      primary = this.object();\n    } else if (this.constants.hasOwnProperty(this.peek().text)) {\n      primary = copy(this.constants[this.consume().text]);\n    } else if (this.peek().identifier) {\n      primary = this.identifier();\n    } else if (this.peek().constant) {\n      primary = this.constant();\n    } else {\n      this.throwError('not a primary expression', this.peek());\n    }\n\n    var next;\n    while ((next = this.expect('(', '[', '.'))) {\n      if (next.text === '(') {\n        primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() };\n        this.consume(')');\n      } else if (next.text === '[') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true };\n        this.consume(']');\n      } else if (next.text === '.') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false };\n      } else {\n        this.throwError('IMPOSSIBLE');\n      }\n    }\n    return primary;\n  },\n\n  filter: function(baseExpression) {\n    var args = [baseExpression];\n    var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true};\n\n    while (this.expect(':')) {\n      args.push(this.expression());\n    }\n\n    return result;\n  },\n\n  parseArguments: function() {\n    var args = [];\n    if (this.peekToken().text !== ')') {\n      do {\n        args.push(this.expression());\n      } while (this.expect(','));\n    }\n    return args;\n  },\n\n  identifier: function() {\n    var token = this.consume();\n    if (!token.identifier) {\n      this.throwError('is not a valid identifier', token);\n    }\n    return { type: AST.Identifier, name: token.text };\n  },\n\n  constant: function() {\n    // TODO check that it is a constant\n    return { type: AST.Literal, value: this.consume().value };\n  },\n\n  arrayDeclaration: function() {\n    var elements = [];\n    if (this.peekToken().text !== ']') {\n      do {\n        if (this.peek(']')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        elements.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(']');\n\n    return { type: AST.ArrayExpression, elements: elements };\n  },\n\n  object: function() {\n    var properties = [], property;\n    if (this.peekToken().text !== '}') {\n      do {\n        if (this.peek('}')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        property = {type: AST.Property, kind: 'init'};\n        if (this.peek().constant) {\n          property.key = this.constant();\n        } else if (this.peek().identifier) {\n          property.key = this.identifier();\n        } else {\n          this.throwError(\"invalid key\", this.peek());\n        }\n        this.consume(':');\n        property.value = this.expression();\n        properties.push(property);\n      } while (this.expect(','));\n    }\n    this.consume('}');\n\n    return {type: AST.ObjectExpression, properties: properties };\n  },\n\n  throwError: function(msg, token) {\n    throw $parseMinErr('syntax',\n        'Syntax Error: Token \\'{0}\\' {1} at column {2} of the expression [{3}] starting at [{4}].',\n          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));\n  },\n\n  consume: function(e1) {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n\n    var token = this.expect(e1);\n    if (!token) {\n      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());\n    }\n    return token;\n  },\n\n  peekToken: function() {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n    return this.tokens[0];\n  },\n\n  peek: function(e1, e2, e3, e4) {\n    return this.peekAhead(0, e1, e2, e3, e4);\n  },\n\n  peekAhead: function(i, e1, e2, e3, e4) {\n    if (this.tokens.length > i) {\n      var token = this.tokens[i];\n      var t = token.text;\n      if (t === e1 || t === e2 || t === e3 || t === e4 ||\n          (!e1 && !e2 && !e3 && !e4)) {\n        return token;\n      }\n    }\n    return false;\n  },\n\n  expect: function(e1, e2, e3, e4) {\n    var token = this.peek(e1, e2, e3, e4);\n    if (token) {\n      this.tokens.shift();\n      return token;\n    }\n    return false;\n  },\n\n\n  /* `undefined` is not a constant, it is an identifier,\n   * but using it as an identifier is not supported\n   */\n  constants: {\n    'true': { type: AST.Literal, value: true },\n    'false': { type: AST.Literal, value: false },\n    'null': { type: AST.Literal, value: null },\n    'undefined': {type: AST.Literal, value: undefined },\n    'this': {type: AST.ThisExpression }\n  }\n};\n\nfunction ifDefined(v, d) {\n  return typeof v !== 'undefined' ? v : d;\n}\n\nfunction plusFn(l, r) {\n  if (typeof l === 'undefined') return r;\n  if (typeof r === 'undefined') return l;\n  return l + r;\n}\n\nfunction isStateless($filter, filterName) {\n  var fn = $filter(filterName);\n  return !fn.$stateful;\n}\n\nfunction findConstantAndWatchExpressions(ast, $filter) {\n  var allConstants;\n  var argsToWatch;\n  switch (ast.type) {\n  case AST.Program:\n    allConstants = true;\n    forEach(ast.body, function(expr) {\n      findConstantAndWatchExpressions(expr.expression, $filter);\n      allConstants = allConstants && expr.expression.constant;\n    });\n    ast.constant = allConstants;\n    break;\n  case AST.Literal:\n    ast.constant = true;\n    ast.toWatch = [];\n    break;\n  case AST.UnaryExpression:\n    findConstantAndWatchExpressions(ast.argument, $filter);\n    ast.constant = ast.argument.constant;\n    ast.toWatch = ast.argument.toWatch;\n    break;\n  case AST.BinaryExpression:\n    findConstantAndWatchExpressions(ast.left, $filter);\n    findConstantAndWatchExpressions(ast.right, $filter);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch);\n    break;\n  case AST.LogicalExpression:\n    findConstantAndWatchExpressions(ast.left, $filter);\n    findConstantAndWatchExpressions(ast.right, $filter);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.ConditionalExpression:\n    findConstantAndWatchExpressions(ast.test, $filter);\n    findConstantAndWatchExpressions(ast.alternate, $filter);\n    findConstantAndWatchExpressions(ast.consequent, $filter);\n    ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.Identifier:\n    ast.constant = false;\n    ast.toWatch = [ast];\n    break;\n  case AST.MemberExpression:\n    findConstantAndWatchExpressions(ast.object, $filter);\n    if (ast.computed) {\n      findConstantAndWatchExpressions(ast.property, $filter);\n    }\n    ast.constant = ast.object.constant && (!ast.computed || ast.property.constant);\n    ast.toWatch = [ast];\n    break;\n  case AST.CallExpression:\n    allConstants = ast.filter ? isStateless($filter, ast.callee.name) : false;\n    argsToWatch = [];\n    forEach(ast.arguments, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter);\n      allConstants = allConstants && expr.constant;\n      if (!expr.constant) {\n        argsToWatch.push.apply(argsToWatch, expr.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = ast.filter && isStateless($filter, ast.callee.name) ? argsToWatch : [ast];\n    break;\n  case AST.AssignmentExpression:\n    findConstantAndWatchExpressions(ast.left, $filter);\n    findConstantAndWatchExpressions(ast.right, $filter);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = [ast];\n    break;\n  case AST.ArrayExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.elements, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter);\n      allConstants = allConstants && expr.constant;\n      if (!expr.constant) {\n        argsToWatch.push.apply(argsToWatch, expr.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ObjectExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.properties, function(property) {\n      findConstantAndWatchExpressions(property.value, $filter);\n      allConstants = allConstants && property.value.constant;\n      if (!property.value.constant) {\n        argsToWatch.push.apply(argsToWatch, property.value.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ThisExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  }\n}\n\nfunction getInputs(body) {\n  if (body.length != 1) return;\n  var lastExpression = body[0].expression;\n  var candidate = lastExpression.toWatch;\n  if (candidate.length !== 1) return candidate;\n  return candidate[0] !== lastExpression ? candidate : undefined;\n}\n\nfunction isAssignable(ast) {\n  return ast.type === AST.Identifier || ast.type === AST.MemberExpression;\n}\n\nfunction assignableAST(ast) {\n  if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) {\n    return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='};\n  }\n}\n\nfunction isLiteral(ast) {\n  return ast.body.length === 0 ||\n      ast.body.length === 1 && (\n      ast.body[0].expression.type === AST.Literal ||\n      ast.body[0].expression.type === AST.ArrayExpression ||\n      ast.body[0].expression.type === AST.ObjectExpression);\n}\n\nfunction isConstant(ast) {\n  return ast.constant;\n}\n\nfunction ASTCompiler(astBuilder, $filter) {\n  this.astBuilder = astBuilder;\n  this.$filter = $filter;\n}\n\nASTCompiler.prototype = {\n  compile: function(expression, expensiveChecks) {\n    var self = this;\n    var ast = this.astBuilder.ast(expression);\n    this.state = {\n      nextId: 0,\n      filters: {},\n      expensiveChecks: expensiveChecks,\n      fn: {vars: [], body: [], own: {}},\n      assign: {vars: [], body: [], own: {}},\n      inputs: []\n    };\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var extra = '';\n    var assignable;\n    this.stage = 'assign';\n    if ((assignable = assignableAST(ast))) {\n      this.state.computing = 'assign';\n      var result = this.nextId();\n      this.recurse(assignable, result);\n      this.return_(result);\n      extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l');\n    }\n    var toWatch = getInputs(ast.body);\n    self.stage = 'inputs';\n    forEach(toWatch, function(watch, key) {\n      var fnKey = 'fn' + key;\n      self.state[fnKey] = {vars: [], body: [], own: {}};\n      self.state.computing = fnKey;\n      var intoId = self.nextId();\n      self.recurse(watch, intoId);\n      self.return_(intoId);\n      self.state.inputs.push(fnKey);\n      watch.watchId = key;\n    });\n    this.state.computing = 'fn';\n    this.stage = 'main';\n    this.recurse(ast);\n    var fnString =\n      // The build and minification steps remove the string \"use strict\" from the code, but this is done using a regex.\n      // This is a workaround for this until we do a better job at only removing the prefix only when we should.\n      '\"' + this.USE + ' ' + this.STRICT + '\";\\n' +\n      this.filterPrefix() +\n      'var fn=' + this.generateFunction('fn', 's,l,a,i') +\n      extra +\n      this.watchFns() +\n      'return fn;';\n\n    /* jshint -W054 */\n    var fn = (new Function('$filter',\n        'ensureSafeMemberName',\n        'ensureSafeObject',\n        'ensureSafeFunction',\n        'getStringValue',\n        'ensureSafeAssignContext',\n        'ifDefined',\n        'plus',\n        'text',\n        fnString))(\n          this.$filter,\n          ensureSafeMemberName,\n          ensureSafeObject,\n          ensureSafeFunction,\n          getStringValue,\n          ensureSafeAssignContext,\n          ifDefined,\n          plusFn,\n          expression);\n    /* jshint +W054 */\n    this.state = this.stage = undefined;\n    fn.literal = isLiteral(ast);\n    fn.constant = isConstant(ast);\n    return fn;\n  },\n\n  USE: 'use',\n\n  STRICT: 'strict',\n\n  watchFns: function() {\n    var result = [];\n    var fns = this.state.inputs;\n    var self = this;\n    forEach(fns, function(name) {\n      result.push('var ' + name + '=' + self.generateFunction(name, 's'));\n    });\n    if (fns.length) {\n      result.push('fn.inputs=[' + fns.join(',') + '];');\n    }\n    return result.join('');\n  },\n\n  generateFunction: function(name, params) {\n    return 'function(' + params + '){' +\n        this.varsPrefix(name) +\n        this.body(name) +\n        '};';\n  },\n\n  filterPrefix: function() {\n    var parts = [];\n    var self = this;\n    forEach(this.state.filters, function(id, filter) {\n      parts.push(id + '=$filter(' + self.escape(filter) + ')');\n    });\n    if (parts.length) return 'var ' + parts.join(',') + ';';\n    return '';\n  },\n\n  varsPrefix: function(section) {\n    return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : '';\n  },\n\n  body: function(section) {\n    return this.state[section].body.join('');\n  },\n\n  recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var left, right, self = this, args, expression;\n    recursionFn = recursionFn || noop;\n    if (!skipWatchIdCheck && isDefined(ast.watchId)) {\n      intoId = intoId || this.nextId();\n      this.if_('i',\n        this.lazyAssign(intoId, this.computedMember('i', ast.watchId)),\n        this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true)\n      );\n      return;\n    }\n    switch (ast.type) {\n    case AST.Program:\n      forEach(ast.body, function(expression, pos) {\n        self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; });\n        if (pos !== ast.body.length - 1) {\n          self.current().body.push(right, ';');\n        } else {\n          self.return_(right);\n        }\n      });\n      break;\n    case AST.Literal:\n      expression = this.escape(ast.value);\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.UnaryExpression:\n      this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; });\n      expression = ast.operator + '(' + this.ifDefined(right, 0) + ')';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.BinaryExpression:\n      this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; });\n      this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; });\n      if (ast.operator === '+') {\n        expression = this.plus(left, right);\n      } else if (ast.operator === '-') {\n        expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0);\n      } else {\n        expression = '(' + left + ')' + ast.operator + '(' + right + ')';\n      }\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.LogicalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.left, intoId);\n      self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.ConditionalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.test, intoId);\n      self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.Identifier:\n      intoId = intoId || this.nextId();\n      if (nameId) {\n        nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s');\n        nameId.computed = false;\n        nameId.name = ast.name;\n      }\n      ensureSafeMemberName(ast.name);\n      self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)),\n        function() {\n          self.if_(self.stage === 'inputs' || 's', function() {\n            if (create && create !== 1) {\n              self.if_(\n                self.not(self.nonComputedMember('s', ast.name)),\n                self.lazyAssign(self.nonComputedMember('s', ast.name), '{}'));\n            }\n            self.assign(intoId, self.nonComputedMember('s', ast.name));\n          });\n        }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name))\n        );\n      if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.name)) {\n        self.addEnsureSafeObject(intoId);\n      }\n      recursionFn(intoId);\n      break;\n    case AST.MemberExpression:\n      left = nameId && (nameId.context = this.nextId()) || this.nextId();\n      intoId = intoId || this.nextId();\n      self.recurse(ast.object, left, undefined, function() {\n        self.if_(self.notNull(left), function() {\n          if (create && create !== 1) {\n            self.addEnsureSafeAssignContext(left);\n          }\n          if (ast.computed) {\n            right = self.nextId();\n            self.recurse(ast.property, right);\n            self.getStringValue(right);\n            self.addEnsureSafeMemberName(right);\n            if (create && create !== 1) {\n              self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}'));\n            }\n            expression = self.ensureSafeObject(self.computedMember(left, right));\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = true;\n              nameId.name = right;\n            }\n          } else {\n            ensureSafeMemberName(ast.property.name);\n            if (create && create !== 1) {\n              self.if_(self.not(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}'));\n            }\n            expression = self.nonComputedMember(left, ast.property.name);\n            if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.property.name)) {\n              expression = self.ensureSafeObject(expression);\n            }\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = false;\n              nameId.name = ast.property.name;\n            }\n          }\n        }, function() {\n          self.assign(intoId, 'undefined');\n        });\n        recursionFn(intoId);\n      }, !!create);\n      break;\n    case AST.CallExpression:\n      intoId = intoId || this.nextId();\n      if (ast.filter) {\n        right = self.filter(ast.callee.name);\n        args = [];\n        forEach(ast.arguments, function(expr) {\n          var argument = self.nextId();\n          self.recurse(expr, argument);\n          args.push(argument);\n        });\n        expression = right + '(' + args.join(',') + ')';\n        self.assign(intoId, expression);\n        recursionFn(intoId);\n      } else {\n        right = self.nextId();\n        left = {};\n        args = [];\n        self.recurse(ast.callee, right, left, function() {\n          self.if_(self.notNull(right), function() {\n            self.addEnsureSafeFunction(right);\n            forEach(ast.arguments, function(expr) {\n              self.recurse(expr, self.nextId(), undefined, function(argument) {\n                args.push(self.ensureSafeObject(argument));\n              });\n            });\n            if (left.name) {\n              if (!self.state.expensiveChecks) {\n                self.addEnsureSafeObject(left.context);\n              }\n              expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')';\n            } else {\n              expression = right + '(' + args.join(',') + ')';\n            }\n            expression = self.ensureSafeObject(expression);\n            self.assign(intoId, expression);\n          }, function() {\n            self.assign(intoId, 'undefined');\n          });\n          recursionFn(intoId);\n        });\n      }\n      break;\n    case AST.AssignmentExpression:\n      right = this.nextId();\n      left = {};\n      if (!isAssignable(ast.left)) {\n        throw $parseMinErr('lval', 'Trying to assign a value to a non l-value');\n      }\n      this.recurse(ast.left, undefined, left, function() {\n        self.if_(self.notNull(left.context), function() {\n          self.recurse(ast.right, right);\n          self.addEnsureSafeObject(self.member(left.context, left.name, left.computed));\n          self.addEnsureSafeAssignContext(left.context);\n          expression = self.member(left.context, left.name, left.computed) + ast.operator + right;\n          self.assign(intoId, expression);\n          recursionFn(intoId || expression);\n        });\n      }, 1);\n      break;\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        self.recurse(expr, self.nextId(), undefined, function(argument) {\n          args.push(argument);\n        });\n      });\n      expression = '[' + args.join(',') + ']';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.ObjectExpression:\n      args = [];\n      forEach(ast.properties, function(property) {\n        self.recurse(property.value, self.nextId(), undefined, function(expr) {\n          args.push(self.escape(\n              property.key.type === AST.Identifier ? property.key.name :\n                ('' + property.key.value)) +\n              ':' + expr);\n        });\n      });\n      expression = '{' + args.join(',') + '}';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.ThisExpression:\n      this.assign(intoId, 's');\n      recursionFn('s');\n      break;\n    case AST.NGValueParameter:\n      this.assign(intoId, 'v');\n      recursionFn('v');\n      break;\n    }\n  },\n\n  getHasOwnProperty: function(element, property) {\n    var key = element + '.' + property;\n    var own = this.current().own;\n    if (!own.hasOwnProperty(key)) {\n      own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')');\n    }\n    return own[key];\n  },\n\n  assign: function(id, value) {\n    if (!id) return;\n    this.current().body.push(id, '=', value, ';');\n    return id;\n  },\n\n  filter: function(filterName) {\n    if (!this.state.filters.hasOwnProperty(filterName)) {\n      this.state.filters[filterName] = this.nextId(true);\n    }\n    return this.state.filters[filterName];\n  },\n\n  ifDefined: function(id, defaultValue) {\n    return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')';\n  },\n\n  plus: function(left, right) {\n    return 'plus(' + left + ',' + right + ')';\n  },\n\n  return_: function(id) {\n    this.current().body.push('return ', id, ';');\n  },\n\n  if_: function(test, alternate, consequent) {\n    if (test === true) {\n      alternate();\n    } else {\n      var body = this.current().body;\n      body.push('if(', test, '){');\n      alternate();\n      body.push('}');\n      if (consequent) {\n        body.push('else{');\n        consequent();\n        body.push('}');\n      }\n    }\n  },\n\n  not: function(expression) {\n    return '!(' + expression + ')';\n  },\n\n  notNull: function(expression) {\n    return expression + '!=null';\n  },\n\n  nonComputedMember: function(left, right) {\n    return left + '.' + right;\n  },\n\n  computedMember: function(left, right) {\n    return left + '[' + right + ']';\n  },\n\n  member: function(left, right, computed) {\n    if (computed) return this.computedMember(left, right);\n    return this.nonComputedMember(left, right);\n  },\n\n  addEnsureSafeObject: function(item) {\n    this.current().body.push(this.ensureSafeObject(item), ';');\n  },\n\n  addEnsureSafeMemberName: function(item) {\n    this.current().body.push(this.ensureSafeMemberName(item), ';');\n  },\n\n  addEnsureSafeFunction: function(item) {\n    this.current().body.push(this.ensureSafeFunction(item), ';');\n  },\n\n  addEnsureSafeAssignContext: function(item) {\n    this.current().body.push(this.ensureSafeAssignContext(item), ';');\n  },\n\n  ensureSafeObject: function(item) {\n    return 'ensureSafeObject(' + item + ',text)';\n  },\n\n  ensureSafeMemberName: function(item) {\n    return 'ensureSafeMemberName(' + item + ',text)';\n  },\n\n  ensureSafeFunction: function(item) {\n    return 'ensureSafeFunction(' + item + ',text)';\n  },\n\n  getStringValue: function(item) {\n    this.assign(item, 'getStringValue(' + item + ',text)');\n  },\n\n  ensureSafeAssignContext: function(item) {\n    return 'ensureSafeAssignContext(' + item + ',text)';\n  },\n\n  lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var self = this;\n    return function() {\n      self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck);\n    };\n  },\n\n  lazyAssign: function(id, value) {\n    var self = this;\n    return function() {\n      self.assign(id, value);\n    };\n  },\n\n  stringEscapeRegex: /[^ a-zA-Z0-9]/g,\n\n  stringEscapeFn: function(c) {\n    return '\\\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);\n  },\n\n  escape: function(value) {\n    if (isString(value)) return \"'\" + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + \"'\";\n    if (isNumber(value)) return value.toString();\n    if (value === true) return 'true';\n    if (value === false) return 'false';\n    if (value === null) return 'null';\n    if (typeof value === 'undefined') return 'undefined';\n\n    throw $parseMinErr('esc', 'IMPOSSIBLE');\n  },\n\n  nextId: function(skip, init) {\n    var id = 'v' + (this.state.nextId++);\n    if (!skip) {\n      this.current().vars.push(id + (init ? '=' + init : ''));\n    }\n    return id;\n  },\n\n  current: function() {\n    return this.state[this.state.computing];\n  }\n};\n\n\nfunction ASTInterpreter(astBuilder, $filter) {\n  this.astBuilder = astBuilder;\n  this.$filter = $filter;\n}\n\nASTInterpreter.prototype = {\n  compile: function(expression, expensiveChecks) {\n    var self = this;\n    var ast = this.astBuilder.ast(expression);\n    this.expression = expression;\n    this.expensiveChecks = expensiveChecks;\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var assignable;\n    var assign;\n    if ((assignable = assignableAST(ast))) {\n      assign = this.recurse(assignable);\n    }\n    var toWatch = getInputs(ast.body);\n    var inputs;\n    if (toWatch) {\n      inputs = [];\n      forEach(toWatch, function(watch, key) {\n        var input = self.recurse(watch);\n        watch.input = input;\n        inputs.push(input);\n        watch.watchId = key;\n      });\n    }\n    var expressions = [];\n    forEach(ast.body, function(expression) {\n      expressions.push(self.recurse(expression.expression));\n    });\n    var fn = ast.body.length === 0 ? function() {} :\n             ast.body.length === 1 ? expressions[0] :\n             function(scope, locals) {\n               var lastValue;\n               forEach(expressions, function(exp) {\n                 lastValue = exp(scope, locals);\n               });\n               return lastValue;\n             };\n    if (assign) {\n      fn.assign = function(scope, value, locals) {\n        return assign(scope, locals, value);\n      };\n    }\n    if (inputs) {\n      fn.inputs = inputs;\n    }\n    fn.literal = isLiteral(ast);\n    fn.constant = isConstant(ast);\n    return fn;\n  },\n\n  recurse: function(ast, context, create) {\n    var left, right, self = this, args, expression;\n    if (ast.input) {\n      return this.inputs(ast.input, ast.watchId);\n    }\n    switch (ast.type) {\n    case AST.Literal:\n      return this.value(ast.value, context);\n    case AST.UnaryExpression:\n      right = this.recurse(ast.argument);\n      return this['unary' + ast.operator](right, context);\n    case AST.BinaryExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.LogicalExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.ConditionalExpression:\n      return this['ternary?:'](\n        this.recurse(ast.test),\n        this.recurse(ast.alternate),\n        this.recurse(ast.consequent),\n        context\n      );\n    case AST.Identifier:\n      ensureSafeMemberName(ast.name, self.expression);\n      return self.identifier(ast.name,\n                             self.expensiveChecks || isPossiblyDangerousMemberName(ast.name),\n                             context, create, self.expression);\n    case AST.MemberExpression:\n      left = this.recurse(ast.object, false, !!create);\n      if (!ast.computed) {\n        ensureSafeMemberName(ast.property.name, self.expression);\n        right = ast.property.name;\n      }\n      if (ast.computed) right = this.recurse(ast.property);\n      return ast.computed ?\n        this.computedMember(left, right, context, create, self.expression) :\n        this.nonComputedMember(left, right, self.expensiveChecks, context, create, self.expression);\n    case AST.CallExpression:\n      args = [];\n      forEach(ast.arguments, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      if (ast.filter) right = this.$filter(ast.callee.name);\n      if (!ast.filter) right = this.recurse(ast.callee, true);\n      return ast.filter ?\n        function(scope, locals, assign, inputs) {\n          var values = [];\n          for (var i = 0; i < args.length; ++i) {\n            values.push(args[i](scope, locals, assign, inputs));\n          }\n          var value = right.apply(undefined, values, inputs);\n          return context ? {context: undefined, name: undefined, value: value} : value;\n        } :\n        function(scope, locals, assign, inputs) {\n          var rhs = right(scope, locals, assign, inputs);\n          var value;\n          if (rhs.value != null) {\n            ensureSafeObject(rhs.context, self.expression);\n            ensureSafeFunction(rhs.value, self.expression);\n            var values = [];\n            for (var i = 0; i < args.length; ++i) {\n              values.push(ensureSafeObject(args[i](scope, locals, assign, inputs), self.expression));\n            }\n            value = ensureSafeObject(rhs.value.apply(rhs.context, values), self.expression);\n          }\n          return context ? {value: value} : value;\n        };\n    case AST.AssignmentExpression:\n      left = this.recurse(ast.left, true, 1);\n      right = this.recurse(ast.right);\n      return function(scope, locals, assign, inputs) {\n        var lhs = left(scope, locals, assign, inputs);\n        var rhs = right(scope, locals, assign, inputs);\n        ensureSafeObject(lhs.value, self.expression);\n        ensureSafeAssignContext(lhs.context);\n        lhs.context[lhs.name] = rhs;\n        return context ? {value: rhs} : rhs;\n      };\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = [];\n        for (var i = 0; i < args.length; ++i) {\n          value.push(args[i](scope, locals, assign, inputs));\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ObjectExpression:\n      args = [];\n      forEach(ast.properties, function(property) {\n        args.push({key: property.key.type === AST.Identifier ?\n                        property.key.name :\n                        ('' + property.key.value),\n                   value: self.recurse(property.value)\n        });\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = {};\n        for (var i = 0; i < args.length; ++i) {\n          value[args[i].key] = args[i].value(scope, locals, assign, inputs);\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ThisExpression:\n      return function(scope) {\n        return context ? {value: scope} : scope;\n      };\n    case AST.NGValueParameter:\n      return function(scope, locals, assign, inputs) {\n        return context ? {value: assign} : assign;\n      };\n    }\n  },\n\n  'unary+': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = +arg;\n      } else {\n        arg = 0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary-': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = -arg;\n      } else {\n        arg = 0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary!': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = !argument(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary+': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = plusFn(lhs, rhs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary-': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary*': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary/': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary%': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary===': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary&&': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary||': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'ternary?:': function(test, alternate, consequent, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  value: function(value, context) {\n    return function() { return context ? {context: undefined, name: undefined, value: value} : value; };\n  },\n  identifier: function(name, expensiveChecks, context, create, expression) {\n    return function(scope, locals, assign, inputs) {\n      var base = locals && (name in locals) ? locals : scope;\n      if (create && create !== 1 && base && !(base[name])) {\n        base[name] = {};\n      }\n      var value = base ? base[name] : undefined;\n      if (expensiveChecks) {\n        ensureSafeObject(value, expression);\n      }\n      if (context) {\n        return {context: base, name: name, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  computedMember: function(left, right, context, create, expression) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs;\n      var value;\n      if (lhs != null) {\n        rhs = right(scope, locals, assign, inputs);\n        rhs = getStringValue(rhs);\n        ensureSafeMemberName(rhs, expression);\n        if (create && create !== 1) {\n          ensureSafeAssignContext(lhs);\n          if (lhs && !(lhs[rhs])) {\n            lhs[rhs] = {};\n          }\n        }\n        value = lhs[rhs];\n        ensureSafeObject(value, expression);\n      }\n      if (context) {\n        return {context: lhs, name: rhs, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  nonComputedMember: function(left, right, expensiveChecks, context, create, expression) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      if (create && create !== 1) {\n        ensureSafeAssignContext(lhs);\n        if (lhs && !(lhs[right])) {\n          lhs[right] = {};\n        }\n      }\n      var value = lhs != null ? lhs[right] : undefined;\n      if (expensiveChecks || isPossiblyDangerousMemberName(right)) {\n        ensureSafeObject(value, expression);\n      }\n      if (context) {\n        return {context: lhs, name: right, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  inputs: function(input, watchId) {\n    return function(scope, value, locals, inputs) {\n      if (inputs) return inputs[watchId];\n      return input(scope, value, locals);\n    };\n  }\n};\n\n/**\n * @constructor\n */\nvar Parser = function(lexer, $filter, options) {\n  this.lexer = lexer;\n  this.$filter = $filter;\n  this.options = options;\n  this.ast = new AST(this.lexer);\n  this.astCompiler = options.csp ? new ASTInterpreter(this.ast, $filter) :\n                                   new ASTCompiler(this.ast, $filter);\n};\n\nParser.prototype = {\n  constructor: Parser,\n\n  parse: function(text) {\n    return this.astCompiler.compile(text, this.options.expensiveChecks);\n  }\n};\n\nfunction isPossiblyDangerousMemberName(name) {\n  return name == 'constructor';\n}\n\nvar objectValueOf = Object.prototype.valueOf;\n\nfunction getValueOf(value) {\n  return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value);\n}\n\n///////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $parse\n * @kind function\n *\n * @description\n *\n * Converts Angular {@link guide/expression expression} into a function.\n *\n * ```js\n *   var getter = $parse('user.name');\n *   var setter = getter.assign;\n *   var context = {user:{name:'angular'}};\n *   var locals = {user:{name:'local'}};\n *\n *   expect(getter(context)).toEqual('angular');\n *   setter(context, 'newValue');\n *   expect(context.user.name).toEqual('newValue');\n *   expect(getter(context, locals)).toEqual('local');\n * ```\n *\n *\n * @param {string} expression String expression to compile.\n * @returns {function(context, locals)} a function which represents the compiled expression:\n *\n *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n *      are evaluated against (typically a scope object).\n *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n *      `context`.\n *\n *    The returned function also has the following properties:\n *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript\n *        literal.\n *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript\n *        constant literals.\n *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be\n *        set to a function to change its value on the given context.\n *\n */\n\n\n/**\n * @ngdoc provider\n * @name $parseProvider\n *\n * @description\n * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}\n *  service.\n */\nfunction $ParseProvider() {\n  var cacheDefault = createMap();\n  var cacheExpensive = createMap();\n\n  this.$get = ['$filter', function($filter) {\n    var noUnsafeEval = csp().noUnsafeEval;\n    var $parseOptions = {\n          csp: noUnsafeEval,\n          expensiveChecks: false\n        },\n        $parseOptionsExpensive = {\n          csp: noUnsafeEval,\n          expensiveChecks: true\n        };\n    var runningChecksEnabled = false;\n\n    $parse.$$runningExpensiveChecks = function() {\n      return runningChecksEnabled;\n    };\n\n    return $parse;\n\n    function $parse(exp, interceptorFn, expensiveChecks) {\n      var parsedExpression, oneTime, cacheKey;\n\n      expensiveChecks = expensiveChecks || runningChecksEnabled;\n\n      switch (typeof exp) {\n        case 'string':\n          exp = exp.trim();\n          cacheKey = exp;\n\n          var cache = (expensiveChecks ? cacheExpensive : cacheDefault);\n          parsedExpression = cache[cacheKey];\n\n          if (!parsedExpression) {\n            if (exp.charAt(0) === ':' && exp.charAt(1) === ':') {\n              oneTime = true;\n              exp = exp.substring(2);\n            }\n            var parseOptions = expensiveChecks ? $parseOptionsExpensive : $parseOptions;\n            var lexer = new Lexer(parseOptions);\n            var parser = new Parser(lexer, $filter, parseOptions);\n            parsedExpression = parser.parse(exp);\n            if (parsedExpression.constant) {\n              parsedExpression.$$watchDelegate = constantWatchDelegate;\n            } else if (oneTime) {\n              parsedExpression.$$watchDelegate = parsedExpression.literal ?\n                  oneTimeLiteralWatchDelegate : oneTimeWatchDelegate;\n            } else if (parsedExpression.inputs) {\n              parsedExpression.$$watchDelegate = inputsWatchDelegate;\n            }\n            if (expensiveChecks) {\n              parsedExpression = expensiveChecksInterceptor(parsedExpression);\n            }\n            cache[cacheKey] = parsedExpression;\n          }\n          return addInterceptor(parsedExpression, interceptorFn);\n\n        case 'function':\n          return addInterceptor(exp, interceptorFn);\n\n        default:\n          return addInterceptor(noop, interceptorFn);\n      }\n    }\n\n    function expensiveChecksInterceptor(fn) {\n      if (!fn) return fn;\n      expensiveCheckFn.$$watchDelegate = fn.$$watchDelegate;\n      expensiveCheckFn.assign = expensiveChecksInterceptor(fn.assign);\n      expensiveCheckFn.constant = fn.constant;\n      expensiveCheckFn.literal = fn.literal;\n      for (var i = 0; fn.inputs && i < fn.inputs.length; ++i) {\n        fn.inputs[i] = expensiveChecksInterceptor(fn.inputs[i]);\n      }\n      expensiveCheckFn.inputs = fn.inputs;\n\n      return expensiveCheckFn;\n\n      function expensiveCheckFn(scope, locals, assign, inputs) {\n        var expensiveCheckOldValue = runningChecksEnabled;\n        runningChecksEnabled = true;\n        try {\n          return fn(scope, locals, assign, inputs);\n        } finally {\n          runningChecksEnabled = expensiveCheckOldValue;\n        }\n      }\n    }\n\n    function expressionInputDirtyCheck(newValue, oldValueOfValue) {\n\n      if (newValue == null || oldValueOfValue == null) { // null/undefined\n        return newValue === oldValueOfValue;\n      }\n\n      if (typeof newValue === 'object') {\n\n        // attempt to convert the value to a primitive type\n        // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can\n        //             be cheaply dirty-checked\n        newValue = getValueOf(newValue);\n\n        if (typeof newValue === 'object') {\n          // objects/arrays are not supported - deep-watching them would be too expensive\n          return false;\n        }\n\n        // fall-through to the primitive equality check\n      }\n\n      //Primitive or NaN\n      return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue);\n    }\n\n    function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var inputExpressions = parsedExpression.inputs;\n      var lastResult;\n\n      if (inputExpressions.length === 1) {\n        var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        inputExpressions = inputExpressions[0];\n        return scope.$watch(function expressionInputWatch(scope) {\n          var newInputValue = inputExpressions(scope);\n          if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf)) {\n            lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]);\n            oldInputValueOf = newInputValue && getValueOf(newInputValue);\n          }\n          return lastResult;\n        }, listener, objectEquality, prettyPrintExpression);\n      }\n\n      var oldInputValueOfValues = [];\n      var oldInputValues = [];\n      for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n        oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        oldInputValues[i] = null;\n      }\n\n      return scope.$watch(function expressionInputsWatch(scope) {\n        var changed = false;\n\n        for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n          var newInputValue = inputExpressions[i](scope);\n          if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i]))) {\n            oldInputValues[i] = newInputValue;\n            oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue);\n          }\n        }\n\n        if (changed) {\n          lastResult = parsedExpression(scope, undefined, undefined, oldInputValues);\n        }\n\n        return lastResult;\n      }, listener, objectEquality, prettyPrintExpression);\n    }\n\n    function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch, lastValue;\n      return unwatch = scope.$watch(function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }, function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener.apply(this, arguments);\n        }\n        if (isDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isDefined(lastValue)) {\n              unwatch();\n            }\n          });\n        }\n      }, objectEquality);\n    }\n\n    function oneTimeLiteralWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch, lastValue;\n      return unwatch = scope.$watch(function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }, function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener.call(this, value, old, scope);\n        }\n        if (isAllDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isAllDefined(lastValue)) unwatch();\n          });\n        }\n      }, objectEquality);\n\n      function isAllDefined(value) {\n        var allDefined = true;\n        forEach(value, function(val) {\n          if (!isDefined(val)) allDefined = false;\n        });\n        return allDefined;\n      }\n    }\n\n    function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch;\n      return unwatch = scope.$watch(function constantWatch(scope) {\n        return parsedExpression(scope);\n      }, function constantListener(value, old, scope) {\n        if (isFunction(listener)) {\n          listener.apply(this, arguments);\n        }\n        unwatch();\n      }, objectEquality);\n    }\n\n    function addInterceptor(parsedExpression, interceptorFn) {\n      if (!interceptorFn) return parsedExpression;\n      var watchDelegate = parsedExpression.$$watchDelegate;\n      var useInputs = false;\n\n      var regularWatch =\n          watchDelegate !== oneTimeLiteralWatchDelegate &&\n          watchDelegate !== oneTimeWatchDelegate;\n\n      var fn = regularWatch ? function regularInterceptedExpression(scope, locals, assign, inputs) {\n        var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs);\n        return interceptorFn(value, scope, locals);\n      } : function oneTimeInterceptedExpression(scope, locals, assign, inputs) {\n        var value = parsedExpression(scope, locals, assign, inputs);\n        var result = interceptorFn(value, scope, locals);\n        // we only return the interceptor's result if the\n        // initial value is defined (for bind-once)\n        return isDefined(value) ? result : value;\n      };\n\n      // Propagate $$watchDelegates other then inputsWatchDelegate\n      if (parsedExpression.$$watchDelegate &&\n          parsedExpression.$$watchDelegate !== inputsWatchDelegate) {\n        fn.$$watchDelegate = parsedExpression.$$watchDelegate;\n      } else if (!interceptorFn.$stateful) {\n        // If there is an interceptor, but no watchDelegate then treat the interceptor like\n        // we treat filters - it is assumed to be a pure function unless flagged with $stateful\n        fn.$$watchDelegate = inputsWatchDelegate;\n        useInputs = !parsedExpression.inputs;\n        fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression];\n      }\n\n      return fn;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $q\n * @requires $rootScope\n *\n * @description\n * A service that helps you run functions asynchronously, and use their return values (or exceptions)\n * when they are done processing.\n *\n * This is an implementation of promises/deferred objects inspired by\n * [Kris Kowal's Q](https://github.com/kriskowal/q).\n *\n * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred\n * implementations, and the other which resembles ES6 (ES2015) promises to some degree.\n *\n * # $q constructor\n *\n * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver`\n * function as the first argument. This is similar to the native Promise implementation from ES6,\n * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).\n *\n * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are\n * available yet.\n *\n * It can be used like so:\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     // perform some asynchronous operation, resolve or reject the promise when appropriate.\n *     return $q(function(resolve, reject) {\n *       setTimeout(function() {\n *         if (okToGreet(name)) {\n *           resolve('Hello, ' + name + '!');\n *         } else {\n *           reject('Greeting ' + name + ' is not allowed.');\n *         }\n *       }, 1000);\n *     });\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   });\n * ```\n *\n * Note: progress/notify callbacks are not currently supported via the ES6-style interface.\n *\n * Note: unlike ES6 behaviour, an exception thrown in the constructor function will NOT implicitly reject the promise.\n *\n * However, the more traditional CommonJS-style usage is still available, and documented below.\n *\n * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an\n * interface for interacting with an object that represents the result of an action that is\n * performed asynchronously, and may or may not be finished at any given point in time.\n *\n * From the perspective of dealing with error handling, deferred and promise APIs are to\n * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     var deferred = $q.defer();\n *\n *     setTimeout(function() {\n *       deferred.notify('About to greet ' + name + '.');\n *\n *       if (okToGreet(name)) {\n *         deferred.resolve('Hello, ' + name + '!');\n *       } else {\n *         deferred.reject('Greeting ' + name + ' is not allowed.');\n *       }\n *     }, 1000);\n *\n *     return deferred.promise;\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   }, function(update) {\n *     alert('Got notification: ' + update);\n *   });\n * ```\n *\n * At first it might not be obvious why this extra complexity is worth the trouble. The payoff\n * comes in the way of guarantees that promise and deferred APIs make, see\n * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.\n *\n * Additionally the promise api allows for composition that is very hard to do with the\n * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.\n * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the\n * section on serial or parallel joining of promises.\n *\n * # The Deferred API\n *\n * A new instance of deferred is constructed by calling `$q.defer()`.\n *\n * The purpose of the deferred object is to expose the associated Promise instance as well as APIs\n * that can be used for signaling the successful or unsuccessful completion, as well as the status\n * of the task.\n *\n * **Methods**\n *\n * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection\n *   constructed via `$q.reject`, the promise will be rejected instead.\n * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to\n *   resolving it with a rejection constructed via `$q.reject`.\n * - `notify(value)` - provides updates on the status of the promise's execution. This may be called\n *   multiple times before the promise is either resolved or rejected.\n *\n * **Properties**\n *\n * - promise – `{Promise}` – promise object associated with this deferred.\n *\n *\n * # The Promise API\n *\n * A new promise instance is created when a deferred instance is created and can be retrieved by\n * calling `deferred.promise`.\n *\n * The purpose of the promise object is to allow for interested parties to get access to the result\n * of the deferred task when it completes.\n *\n * **Methods**\n *\n * - `then(successCallback, errorCallback, notifyCallback)` – regardless of when the promise was or\n *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously\n *   as soon as the result is available. The callbacks are called with a single argument: the result\n *   or rejection reason. Additionally, the notify callback may be called zero or more times to\n *   provide a progress indication, before the promise is resolved or rejected.\n *\n *   This method *returns a new promise* which is resolved or rejected via the return value of the\n *   `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved\n *   with the value which is resolved in that promise using\n *   [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)).\n *   It also notifies via the return value of the `notifyCallback` method. The promise cannot be\n *   resolved or rejected from the notifyCallback method.\n *\n * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`\n *\n * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise,\n *   but to do so without modifying the final value. This is useful to release resources or do some\n *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full\n *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for\n *   more information.\n *\n * # Chaining promises\n *\n * Because calling the `then` method of a promise returns a new derived promise, it is easily\n * possible to create a chain of promises:\n *\n * ```js\n *   promiseB = promiseA.then(function(result) {\n *     return result + 1;\n *   });\n *\n *   // promiseB will be resolved immediately after promiseA is resolved and its value\n *   // will be the result of promiseA incremented by 1\n * ```\n *\n * It is possible to create chains of any length and since a promise can be resolved with another\n * promise (which will defer its resolution further), it is possible to pause/defer resolution of\n * the promises at any point in the chain. This makes it possible to implement powerful APIs like\n * $http's response interceptors.\n *\n *\n * # Differences between Kris Kowal's Q and $q\n *\n *  There are two main differences:\n *\n * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation\n *   mechanism in angular, which means faster propagation of resolution or rejection into your\n *   models and avoiding unnecessary browser repaints, which would result in flickering UI.\n * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains\n *   all the important functionality needed for common async tasks.\n *\n *  # Testing\n *\n *  ```js\n *    it('should simulate promise', inject(function($q, $rootScope) {\n *      var deferred = $q.defer();\n *      var promise = deferred.promise;\n *      var resolvedValue;\n *\n *      promise.then(function(value) { resolvedValue = value; });\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Simulate resolving of promise\n *      deferred.resolve(123);\n *      // Note that the 'then' function does not get called synchronously.\n *      // This is because we want the promise API to always be async, whether or not\n *      // it got called synchronously or asynchronously.\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Propagate promise resolution to 'then' functions using $apply().\n *      $rootScope.$apply();\n *      expect(resolvedValue).toEqual(123);\n *    }));\n *  ```\n *\n * @param {function(function, function)} resolver Function which is responsible for resolving or\n *   rejecting the newly created promise. The first parameter is a function which resolves the\n *   promise, the second parameter is a function which rejects the promise.\n *\n * @returns {Promise} The newly created promise.\n */\nfunction $QProvider() {\n\n  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $rootScope.$evalAsync(callback);\n    }, $exceptionHandler);\n  }];\n}\n\nfunction $$QProvider() {\n  this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $browser.defer(callback);\n    }, $exceptionHandler);\n  }];\n}\n\n/**\n * Constructs a promise manager.\n *\n * @param {function(function)} nextTick Function for executing functions in the next turn.\n * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for\n *     debugging purposes.\n * @returns {object} Promise manager.\n */\nfunction qFactory(nextTick, exceptionHandler) {\n  var $qMinErr = minErr('$q', TypeError);\n  function callOnce(self, resolveFn, rejectFn) {\n    var called = false;\n    function wrap(fn) {\n      return function(value) {\n        if (called) return;\n        called = true;\n        fn.call(self, value);\n      };\n    }\n\n    return [wrap(resolveFn), wrap(rejectFn)];\n  }\n\n  /**\n   * @ngdoc method\n   * @name ng.$q#defer\n   * @kind function\n   *\n   * @description\n   * Creates a `Deferred` object which represents a task which will finish in the future.\n   *\n   * @returns {Deferred} Returns a new instance of deferred.\n   */\n  var defer = function() {\n    return new Deferred();\n  };\n\n  function Promise() {\n    this.$$state = { status: 0 };\n  }\n\n  extend(Promise.prototype, {\n    then: function(onFulfilled, onRejected, progressBack) {\n      if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) {\n        return this;\n      }\n      var result = new Deferred();\n\n      this.$$state.pending = this.$$state.pending || [];\n      this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]);\n      if (this.$$state.status > 0) scheduleProcessQueue(this.$$state);\n\n      return result.promise;\n    },\n\n    \"catch\": function(callback) {\n      return this.then(null, callback);\n    },\n\n    \"finally\": function(callback, progressBack) {\n      return this.then(function(value) {\n        return handleCallback(value, true, callback);\n      }, function(error) {\n        return handleCallback(error, false, callback);\n      }, progressBack);\n    }\n  });\n\n  //Faster, more basic than angular.bind http://jsperf.com/angular-bind-vs-custom-vs-native\n  function simpleBind(context, fn) {\n    return function(value) {\n      fn.call(context, value);\n    };\n  }\n\n  function processQueue(state) {\n    var fn, deferred, pending;\n\n    pending = state.pending;\n    state.processScheduled = false;\n    state.pending = undefined;\n    for (var i = 0, ii = pending.length; i < ii; ++i) {\n      deferred = pending[i][0];\n      fn = pending[i][state.status];\n      try {\n        if (isFunction(fn)) {\n          deferred.resolve(fn(state.value));\n        } else if (state.status === 1) {\n          deferred.resolve(state.value);\n        } else {\n          deferred.reject(state.value);\n        }\n      } catch (e) {\n        deferred.reject(e);\n        exceptionHandler(e);\n      }\n    }\n  }\n\n  function scheduleProcessQueue(state) {\n    if (state.processScheduled || !state.pending) return;\n    state.processScheduled = true;\n    nextTick(function() { processQueue(state); });\n  }\n\n  function Deferred() {\n    this.promise = new Promise();\n    //Necessary to support unbound execution :/\n    this.resolve = simpleBind(this, this.resolve);\n    this.reject = simpleBind(this, this.reject);\n    this.notify = simpleBind(this, this.notify);\n  }\n\n  extend(Deferred.prototype, {\n    resolve: function(val) {\n      if (this.promise.$$state.status) return;\n      if (val === this.promise) {\n        this.$$reject($qMinErr(\n          'qcycle',\n          \"Expected promise to be resolved with value other than itself '{0}'\",\n          val));\n      } else {\n        this.$$resolve(val);\n      }\n\n    },\n\n    $$resolve: function(val) {\n      var then, fns;\n\n      fns = callOnce(this, this.$$resolve, this.$$reject);\n      try {\n        if ((isObject(val) || isFunction(val))) then = val && val.then;\n        if (isFunction(then)) {\n          this.promise.$$state.status = -1;\n          then.call(val, fns[0], fns[1], this.notify);\n        } else {\n          this.promise.$$state.value = val;\n          this.promise.$$state.status = 1;\n          scheduleProcessQueue(this.promise.$$state);\n        }\n      } catch (e) {\n        fns[1](e);\n        exceptionHandler(e);\n      }\n    },\n\n    reject: function(reason) {\n      if (this.promise.$$state.status) return;\n      this.$$reject(reason);\n    },\n\n    $$reject: function(reason) {\n      this.promise.$$state.value = reason;\n      this.promise.$$state.status = 2;\n      scheduleProcessQueue(this.promise.$$state);\n    },\n\n    notify: function(progress) {\n      var callbacks = this.promise.$$state.pending;\n\n      if ((this.promise.$$state.status <= 0) && callbacks && callbacks.length) {\n        nextTick(function() {\n          var callback, result;\n          for (var i = 0, ii = callbacks.length; i < ii; i++) {\n            result = callbacks[i][0];\n            callback = callbacks[i][3];\n            try {\n              result.notify(isFunction(callback) ? callback(progress) : progress);\n            } catch (e) {\n              exceptionHandler(e);\n            }\n          }\n        });\n      }\n    }\n  });\n\n  /**\n   * @ngdoc method\n   * @name $q#reject\n   * @kind function\n   *\n   * @description\n   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be\n   * used to forward rejection in a chain of promises. If you are dealing with the last promise in\n   * a promise chain, you don't need to worry about it.\n   *\n   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of\n   * `reject` as the `throw` keyword in JavaScript. This also means that if you \"catch\" an error via\n   * a promise error callback and you want to forward the error to the promise derived from the\n   * current promise, you have to \"rethrow\" the error by returning a rejection constructed via\n   * `reject`.\n   *\n   * ```js\n   *   promiseB = promiseA.then(function(result) {\n   *     // success: do something and resolve promiseB\n   *     //          with the old or a new result\n   *     return result;\n   *   }, function(reason) {\n   *     // error: handle the error if possible and\n   *     //        resolve promiseB with newPromiseOrValue,\n   *     //        otherwise forward the rejection to promiseB\n   *     if (canHandle(reason)) {\n   *      // handle the error and recover\n   *      return newPromiseOrValue;\n   *     }\n   *     return $q.reject(reason);\n   *   });\n   * ```\n   *\n   * @param {*} reason Constant, message, exception or an object representing the rejection reason.\n   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.\n   */\n  var reject = function(reason) {\n    var result = new Deferred();\n    result.reject(reason);\n    return result.promise;\n  };\n\n  var makePromise = function makePromise(value, resolved) {\n    var result = new Deferred();\n    if (resolved) {\n      result.resolve(value);\n    } else {\n      result.reject(value);\n    }\n    return result.promise;\n  };\n\n  var handleCallback = function handleCallback(value, isResolved, callback) {\n    var callbackOutput = null;\n    try {\n      if (isFunction(callback)) callbackOutput = callback();\n    } catch (e) {\n      return makePromise(e, false);\n    }\n    if (isPromiseLike(callbackOutput)) {\n      return callbackOutput.then(function() {\n        return makePromise(value, isResolved);\n      }, function(error) {\n        return makePromise(error, false);\n      });\n    } else {\n      return makePromise(value, isResolved);\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $q#when\n   * @kind function\n   *\n   * @description\n   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.\n   * This is useful when you are dealing with an object that might or might not be a promise, or if\n   * the promise comes from a source that can't be trusted.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n\n\n  var when = function(value, callback, errback, progressBack) {\n    var result = new Deferred();\n    result.resolve(value);\n    return result.promise.then(callback, errback, progressBack);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $q#resolve\n   * @kind function\n   *\n   * @description\n   * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n  var resolve = when;\n\n  /**\n   * @ngdoc method\n   * @name $q#all\n   * @kind function\n   *\n   * @description\n   * Combines multiple promises into a single promise that is resolved when all of the input\n   * promises are resolved.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,\n   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.\n   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected\n   *   with the same rejection value.\n   */\n\n  function all(promises) {\n    var deferred = new Deferred(),\n        counter = 0,\n        results = isArray(promises) ? [] : {};\n\n    forEach(promises, function(promise, key) {\n      counter++;\n      when(promise).then(function(value) {\n        if (results.hasOwnProperty(key)) return;\n        results[key] = value;\n        if (!(--counter)) deferred.resolve(results);\n      }, function(reason) {\n        if (results.hasOwnProperty(key)) return;\n        deferred.reject(reason);\n      });\n    });\n\n    if (counter === 0) {\n      deferred.resolve(results);\n    }\n\n    return deferred.promise;\n  }\n\n  var $Q = function Q(resolver) {\n    if (!isFunction(resolver)) {\n      throw $qMinErr('norslvr', \"Expected resolverFn, got '{0}'\", resolver);\n    }\n\n    if (!(this instanceof Q)) {\n      // More useful when $Q is the Promise itself.\n      return new Q(resolver);\n    }\n\n    var deferred = new Deferred();\n\n    function resolveFn(value) {\n      deferred.resolve(value);\n    }\n\n    function rejectFn(reason) {\n      deferred.reject(reason);\n    }\n\n    resolver(resolveFn, rejectFn);\n\n    return deferred.promise;\n  };\n\n  $Q.defer = defer;\n  $Q.reject = reject;\n  $Q.when = when;\n  $Q.resolve = resolve;\n  $Q.all = all;\n\n  return $Q;\n}\n\nfunction $$RAFProvider() { //rAF\n  this.$get = ['$window', '$timeout', function($window, $timeout) {\n    var requestAnimationFrame = $window.requestAnimationFrame ||\n                                $window.webkitRequestAnimationFrame;\n\n    var cancelAnimationFrame = $window.cancelAnimationFrame ||\n                               $window.webkitCancelAnimationFrame ||\n                               $window.webkitCancelRequestAnimationFrame;\n\n    var rafSupported = !!requestAnimationFrame;\n    var raf = rafSupported\n      ? function(fn) {\n          var id = requestAnimationFrame(fn);\n          return function() {\n            cancelAnimationFrame(id);\n          };\n        }\n      : function(fn) {\n          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666\n          return function() {\n            $timeout.cancel(timer);\n          };\n        };\n\n    raf.supported = rafSupported;\n\n    return raf;\n  }];\n}\n\n/**\n * DESIGN NOTES\n *\n * The design decisions behind the scope are heavily favored for speed and memory consumption.\n *\n * The typical use of scope is to watch the expressions, which most of the time return the same\n * value as last time so we optimize the operation.\n *\n * Closures construction is expensive in terms of speed as well as memory:\n *   - No closures, instead use prototypical inheritance for API\n *   - Internal state needs to be stored on scope directly, which means that private state is\n *     exposed as $$____ properties\n *\n * Loop operations are optimized by using while(count--) { ... }\n *   - This means that in order to keep the same order of execution as addition we have to add\n *     items to the array at the beginning (unshift) instead of at the end (push)\n *\n * Child scopes are created and removed often\n *   - Using an array would be slow since inserts in the middle are expensive; so we use linked lists\n *\n * There are fewer watches than observers. This is why you don't want the observer to be implemented\n * in the same way as watch. Watch requires return of the initialization function which is expensive\n * to construct.\n */\n\n\n/**\n * @ngdoc provider\n * @name $rootScopeProvider\n * @description\n *\n * Provider for the $rootScope service.\n */\n\n/**\n * @ngdoc method\n * @name $rootScopeProvider#digestTtl\n * @description\n *\n * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and\n * assuming that the model is unstable.\n *\n * The current default is 10 iterations.\n *\n * In complex applications it's possible that the dependencies between `$watch`s will result in\n * several digest iterations. However if an application needs more than the default 10 digest\n * iterations for its model to stabilize then you should investigate what is causing the model to\n * continuously change during the digest.\n *\n * Increasing the TTL could have performance implications, so you should not change it without\n * proper justification.\n *\n * @param {number} limit The number of digest iterations.\n */\n\n\n/**\n * @ngdoc service\n * @name $rootScope\n * @description\n *\n * Every application has a single root {@link ng.$rootScope.Scope scope}.\n * All other scopes are descendant scopes of the root scope. Scopes provide separation\n * between the model and the view, via a mechanism for watching the model for changes.\n * They also provide event emission/broadcast and subscription facility. See the\n * {@link guide/scope developer guide on scopes}.\n */\nfunction $RootScopeProvider() {\n  var TTL = 10;\n  var $rootScopeMinErr = minErr('$rootScope');\n  var lastDirtyWatch = null;\n  var applyAsyncId = null;\n\n  this.digestTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n    }\n    return TTL;\n  };\n\n  function createChildScopeClass(parent) {\n    function ChildScope() {\n      this.$$watchers = this.$$nextSibling =\n          this.$$childHead = this.$$childTail = null;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$id = nextUid();\n      this.$$ChildScope = null;\n    }\n    ChildScope.prototype = parent;\n    return ChildScope;\n  }\n\n  this.$get = ['$injector', '$exceptionHandler', '$parse', '$browser',\n      function($injector, $exceptionHandler, $parse, $browser) {\n\n    function destroyChildScope($event) {\n        $event.currentScope.$$destroyed = true;\n    }\n\n    function cleanUpScope($scope) {\n\n      if (msie === 9) {\n        // There is a memory leak in IE9 if all child scopes are not disconnected\n        // completely when a scope is destroyed. So this code will recurse up through\n        // all this scopes children\n        //\n        // See issue https://github.com/angular/angular.js/issues/10706\n        $scope.$$childHead && cleanUpScope($scope.$$childHead);\n        $scope.$$nextSibling && cleanUpScope($scope.$$nextSibling);\n      }\n\n      // The code below works around IE9 and V8's memory leaks\n      //\n      // See:\n      // - https://code.google.com/p/v8/issues/detail?id=2073#c26\n      // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909\n      // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451\n\n      $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead =\n          $scope.$$childTail = $scope.$root = $scope.$$watchers = null;\n    }\n\n    /**\n     * @ngdoc type\n     * @name $rootScope.Scope\n     *\n     * @description\n     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the\n     * {@link auto.$injector $injector}. Child scopes are created using the\n     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when\n     * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for\n     * an in-depth introduction and usage examples.\n     *\n     *\n     * # Inheritance\n     * A scope can inherit from a parent scope, as in this example:\n     * ```js\n         var parent = $rootScope;\n         var child = parent.$new();\n\n         parent.salutation = \"Hello\";\n         expect(child.salutation).toEqual('Hello');\n\n         child.salutation = \"Welcome\";\n         expect(child.salutation).toEqual('Welcome');\n         expect(parent.salutation).toEqual('Hello');\n     * ```\n     *\n     * When interacting with `Scope` in tests, additional helper methods are available on the\n     * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional\n     * details.\n     *\n     *\n     * @param {Object.<string, function()>=} providers Map of service factory which need to be\n     *                                       provided for the current scope. Defaults to {@link ng}.\n     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should\n     *                              append/override services provided by `providers`. This is handy\n     *                              when unit-testing and having the need to override a default\n     *                              service.\n     * @returns {Object} Newly created scope.\n     *\n     */\n    function Scope() {\n      this.$id = nextUid();\n      this.$$phase = this.$parent = this.$$watchers =\n                     this.$$nextSibling = this.$$prevSibling =\n                     this.$$childHead = this.$$childTail = null;\n      this.$root = this;\n      this.$$destroyed = false;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$$isolateBindings = null;\n    }\n\n    /**\n     * @ngdoc property\n     * @name $rootScope.Scope#$id\n     *\n     * @description\n     * Unique scope ID (monotonically increasing) useful for debugging.\n     */\n\n     /**\n      * @ngdoc property\n      * @name $rootScope.Scope#$parent\n      *\n      * @description\n      * Reference to the parent scope.\n      */\n\n      /**\n       * @ngdoc property\n       * @name $rootScope.Scope#$root\n       *\n       * @description\n       * Reference to the root scope.\n       */\n\n    Scope.prototype = {\n      constructor: Scope,\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$new\n       * @kind function\n       *\n       * @description\n       * Creates a new child {@link ng.$rootScope.Scope scope}.\n       *\n       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.\n       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.\n       *\n       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is\n       * desired for the scope and its child scopes to be permanently detached from the parent and\n       * thus stop participating in model change detection and listener notification by invoking.\n       *\n       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the\n       *         parent scope. The scope is isolated, as it can not see parent scope properties.\n       *         When creating widgets, it is useful for the widget to not accidentally read parent\n       *         state.\n       *\n       * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent`\n       *                              of the newly created scope. Defaults to `this` scope if not provided.\n       *                              This is used when creating a transclude scope to correctly place it\n       *                              in the scope hierarchy while maintaining the correct prototypical\n       *                              inheritance.\n       *\n       * @returns {Object} The newly created child scope.\n       *\n       */\n      $new: function(isolate, parent) {\n        var child;\n\n        parent = parent || this;\n\n        if (isolate) {\n          child = new Scope();\n          child.$root = this.$root;\n        } else {\n          // Only create a child scope class if somebody asks for one,\n          // but cache it to allow the VM to optimize lookups.\n          if (!this.$$ChildScope) {\n            this.$$ChildScope = createChildScopeClass(this);\n          }\n          child = new this.$$ChildScope();\n        }\n        child.$parent = parent;\n        child.$$prevSibling = parent.$$childTail;\n        if (parent.$$childHead) {\n          parent.$$childTail.$$nextSibling = child;\n          parent.$$childTail = child;\n        } else {\n          parent.$$childHead = parent.$$childTail = child;\n        }\n\n        // When the new scope is not isolated or we inherit from `this`, and\n        // the parent scope is destroyed, the property `$$destroyed` is inherited\n        // prototypically. In all other cases, this property needs to be set\n        // when the parent scope is destroyed.\n        // The listener needs to be added after the parent is set\n        if (isolate || parent != this) child.$on('$destroy', destroyChildScope);\n\n        return child;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watch\n       * @kind function\n       *\n       * @description\n       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.\n       *\n       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest\n       *   $digest()} and should return the value that will be watched. (`watchExpression` should not change\n       *   its value when executed multiple times with the same input because it may be executed multiple\n       *   times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be\n       *   [idempotent](http://en.wikipedia.org/wiki/Idempotence).\n       * - The `listener` is called only when the value from the current `watchExpression` and the\n       *   previous call to `watchExpression` are not equal (with the exception of the initial run,\n       *   see below). Inequality is determined according to reference inequality,\n       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)\n       *    via the `!==` Javascript operator, unless `objectEquality == true`\n       *   (see next point)\n       * - When `objectEquality == true`, inequality of the `watchExpression` is determined\n       *   according to the {@link angular.equals} function. To save the value of the object for\n       *   later comparison, the {@link angular.copy} function is used. This therefore means that\n       *   watching complex objects will have adverse memory and performance implications.\n       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.\n       *   This is achieved by rerunning the watchers until no changes are detected. The rerun\n       *   iteration limit is 10 to prevent an infinite loop deadlock.\n       *\n       *\n       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,\n       * you can register a `watchExpression` function with no `listener`. (Be prepared for\n       * multiple calls to your `watchExpression` because it will execute multiple times in a\n       * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.)\n       *\n       * After a watcher is registered with the scope, the `listener` fn is called asynchronously\n       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the\n       * watcher. In rare cases, this is undesirable because the listener is called when the result\n       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you\n       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the\n       * listener was called due to initialization.\n       *\n       *\n       *\n       * # Example\n       * ```js\n           // let's assume that scope was dependency injected as the $rootScope\n           var scope = $rootScope;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n\n\n\n           // Using a function as a watchExpression\n           var food;\n           scope.foodCounter = 0;\n           expect(scope.foodCounter).toEqual(0);\n           scope.$watch(\n             // This function returns the value being watched. It is called for each turn of the $digest loop\n             function() { return food; },\n             // This is the change listener, called when the value returned from the above function changes\n             function(newValue, oldValue) {\n               if ( newValue !== oldValue ) {\n                 // Only increment the counter if the value changed\n                 scope.foodCounter = scope.foodCounter + 1;\n               }\n             }\n           );\n           // No digest has been run so the counter will be zero\n           expect(scope.foodCounter).toEqual(0);\n\n           // Run the digest but since food has not changed count will still be zero\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(0);\n\n           // Update food and run digest.  Now the counter will increment\n           food = 'cheeseburger';\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(1);\n\n       * ```\n       *\n       *\n       *\n       * @param {(function()|string)} watchExpression Expression that is evaluated on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers\n       *    a call to the `listener`.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(scope)`: called with current `scope` as a parameter.\n       * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value\n       *    of `watchExpression` changes.\n       *\n       *    - `newVal` contains the current value of the `watchExpression`\n       *    - `oldVal` contains the previous value of the `watchExpression`\n       *    - `scope` refers to the current scope\n       * @param {boolean=} objectEquality Compare for object equality using {@link angular.equals} instead of\n       *     comparing for reference equality.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) {\n        var get = $parse(watchExp);\n\n        if (get.$$watchDelegate) {\n          return get.$$watchDelegate(this, listener, objectEquality, get, watchExp);\n        }\n        var scope = this,\n            array = scope.$$watchers,\n            watcher = {\n              fn: listener,\n              last: initWatchVal,\n              get: get,\n              exp: prettyPrintExpression || watchExp,\n              eq: !!objectEquality\n            };\n\n        lastDirtyWatch = null;\n\n        if (!isFunction(listener)) {\n          watcher.fn = noop;\n        }\n\n        if (!array) {\n          array = scope.$$watchers = [];\n        }\n        // we use unshift since we use a while loop in $digest for speed.\n        // the while loop reads in reverse order.\n        array.unshift(watcher);\n        incrementWatchersCount(this, 1);\n\n        return function deregisterWatch() {\n          if (arrayRemove(array, watcher) >= 0) {\n            incrementWatchersCount(scope, -1);\n          }\n          lastDirtyWatch = null;\n        };\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchGroup\n       * @kind function\n       *\n       * @description\n       * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`.\n       * If any one expression in the collection changes the `listener` is executed.\n       *\n       * - The items in the `watchExpressions` array are observed via standard $watch operation and are examined on every\n       *   call to $digest() to see if any items changes.\n       * - The `listener` is called whenever any expression in the `watchExpressions` array changes.\n       *\n       * @param {Array.<string|Function(scope)>} watchExpressions Array of expressions that will be individually\n       * watched using {@link ng.$rootScope.Scope#$watch $watch()}\n       *\n       * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any\n       *    expression in `watchExpressions` changes\n       *    The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    The `scope` refers to the current scope.\n       * @returns {function()} Returns a de-registration function for all listeners.\n       */\n      $watchGroup: function(watchExpressions, listener) {\n        var oldValues = new Array(watchExpressions.length);\n        var newValues = new Array(watchExpressions.length);\n        var deregisterFns = [];\n        var self = this;\n        var changeReactionScheduled = false;\n        var firstRun = true;\n\n        if (!watchExpressions.length) {\n          // No expressions means we call the listener ASAP\n          var shouldCall = true;\n          self.$evalAsync(function() {\n            if (shouldCall) listener(newValues, newValues, self);\n          });\n          return function deregisterWatchGroup() {\n            shouldCall = false;\n          };\n        }\n\n        if (watchExpressions.length === 1) {\n          // Special case size of one\n          return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) {\n            newValues[0] = value;\n            oldValues[0] = oldValue;\n            listener(newValues, (value === oldValue) ? newValues : oldValues, scope);\n          });\n        }\n\n        forEach(watchExpressions, function(expr, i) {\n          var unwatchFn = self.$watch(expr, function watchGroupSubAction(value, oldValue) {\n            newValues[i] = value;\n            oldValues[i] = oldValue;\n            if (!changeReactionScheduled) {\n              changeReactionScheduled = true;\n              self.$evalAsync(watchGroupAction);\n            }\n          });\n          deregisterFns.push(unwatchFn);\n        });\n\n        function watchGroupAction() {\n          changeReactionScheduled = false;\n\n          if (firstRun) {\n            firstRun = false;\n            listener(newValues, newValues, self);\n          } else {\n            listener(newValues, oldValues, self);\n          }\n        }\n\n        return function deregisterWatchGroup() {\n          while (deregisterFns.length) {\n            deregisterFns.shift()();\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchCollection\n       * @kind function\n       *\n       * @description\n       * Shallow watches the properties of an object and fires whenever any of the properties change\n       * (for arrays, this implies watching the array items; for object maps, this implies watching\n       * the properties). If a change is detected, the `listener` callback is fired.\n       *\n       * - The `obj` collection is observed via standard $watch operation and is examined on every\n       *   call to $digest() to see if any items have been added, removed, or moved.\n       * - The `listener` is called whenever anything within the `obj` has changed. Examples include\n       *   adding, removing, and moving items belonging to an object or array.\n       *\n       *\n       * # Example\n       * ```js\n          $scope.names = ['igor', 'matias', 'misko', 'james'];\n          $scope.dataCount = 4;\n\n          $scope.$watchCollection('names', function(newNames, oldNames) {\n            $scope.dataCount = newNames.length;\n          });\n\n          expect($scope.dataCount).toEqual(4);\n          $scope.$digest();\n\n          //still at 4 ... no changes\n          expect($scope.dataCount).toEqual(4);\n\n          $scope.names.pop();\n          $scope.$digest();\n\n          //now there's been a change\n          expect($scope.dataCount).toEqual(3);\n       * ```\n       *\n       *\n       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The\n       *    expression value should evaluate to an object or an array which is observed on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the\n       *    collection will trigger a call to the `listener`.\n       *\n       * @param {function(newCollection, oldCollection, scope)} listener a callback function called\n       *    when a change is detected.\n       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression\n       *    - The `oldCollection` object is a copy of the former collection data.\n       *      Due to performance considerations, the`oldCollection` value is computed only if the\n       *      `listener` function declares two or more arguments.\n       *    - The `scope` argument refers to the current scope.\n       *\n       * @returns {function()} Returns a de-registration function for this listener. When the\n       *    de-registration function is executed, the internal watch operation is terminated.\n       */\n      $watchCollection: function(obj, listener) {\n        $watchCollectionInterceptor.$stateful = true;\n\n        var self = this;\n        // the current value, updated on each dirty-check run\n        var newValue;\n        // a shallow copy of the newValue from the last dirty-check run,\n        // updated to match newValue during dirty-check run\n        var oldValue;\n        // a shallow copy of the newValue from when the last change happened\n        var veryOldValue;\n        // only track veryOldValue if the listener is asking for it\n        var trackVeryOldValue = (listener.length > 1);\n        var changeDetected = 0;\n        var changeDetector = $parse(obj, $watchCollectionInterceptor);\n        var internalArray = [];\n        var internalObject = {};\n        var initRun = true;\n        var oldLength = 0;\n\n        function $watchCollectionInterceptor(_value) {\n          newValue = _value;\n          var newLength, key, bothNaN, newItem, oldItem;\n\n          // If the new value is undefined, then return undefined as the watch may be a one-time watch\n          if (isUndefined(newValue)) return;\n\n          if (!isObject(newValue)) { // if primitive\n            if (oldValue !== newValue) {\n              oldValue = newValue;\n              changeDetected++;\n            }\n          } else if (isArrayLike(newValue)) {\n            if (oldValue !== internalArray) {\n              // we are transitioning from something which was not an array into array.\n              oldValue = internalArray;\n              oldLength = oldValue.length = 0;\n              changeDetected++;\n            }\n\n            newLength = newValue.length;\n\n            if (oldLength !== newLength) {\n              // if lengths do not match we need to trigger change notification\n              changeDetected++;\n              oldValue.length = oldLength = newLength;\n            }\n            // copy the items to oldValue and look for changes.\n            for (var i = 0; i < newLength; i++) {\n              oldItem = oldValue[i];\n              newItem = newValue[i];\n\n              bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n              if (!bothNaN && (oldItem !== newItem)) {\n                changeDetected++;\n                oldValue[i] = newItem;\n              }\n            }\n          } else {\n            if (oldValue !== internalObject) {\n              // we are transitioning from something which was not an object into object.\n              oldValue = internalObject = {};\n              oldLength = 0;\n              changeDetected++;\n            }\n            // copy the items to oldValue and look for changes.\n            newLength = 0;\n            for (key in newValue) {\n              if (hasOwnProperty.call(newValue, key)) {\n                newLength++;\n                newItem = newValue[key];\n                oldItem = oldValue[key];\n\n                if (key in oldValue) {\n                  bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n                  if (!bothNaN && (oldItem !== newItem)) {\n                    changeDetected++;\n                    oldValue[key] = newItem;\n                  }\n                } else {\n                  oldLength++;\n                  oldValue[key] = newItem;\n                  changeDetected++;\n                }\n              }\n            }\n            if (oldLength > newLength) {\n              // we used to have more keys, need to find them and destroy them.\n              changeDetected++;\n              for (key in oldValue) {\n                if (!hasOwnProperty.call(newValue, key)) {\n                  oldLength--;\n                  delete oldValue[key];\n                }\n              }\n            }\n          }\n          return changeDetected;\n        }\n\n        function $watchCollectionAction() {\n          if (initRun) {\n            initRun = false;\n            listener(newValue, newValue, self);\n          } else {\n            listener(newValue, veryOldValue, self);\n          }\n\n          // make a copy for the next time a collection is changed\n          if (trackVeryOldValue) {\n            if (!isObject(newValue)) {\n              //primitive\n              veryOldValue = newValue;\n            } else if (isArrayLike(newValue)) {\n              veryOldValue = new Array(newValue.length);\n              for (var i = 0; i < newValue.length; i++) {\n                veryOldValue[i] = newValue[i];\n              }\n            } else { // if object\n              veryOldValue = {};\n              for (var key in newValue) {\n                if (hasOwnProperty.call(newValue, key)) {\n                  veryOldValue[key] = newValue[key];\n                }\n              }\n            }\n          }\n        }\n\n        return this.$watch(changeDetector, $watchCollectionAction);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$digest\n       * @kind function\n       *\n       * @description\n       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and\n       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change\n       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}\n       * until no more listeners are firing. This means that it is possible to get into an infinite\n       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of\n       * iterations exceeds 10.\n       *\n       * Usually, you don't call `$digest()` directly in\n       * {@link ng.directive:ngController controllers} or in\n       * {@link ng.$compileProvider#directive directives}.\n       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within\n       * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`.\n       *\n       * If you want to be notified whenever `$digest()` is called,\n       * you can register a `watchExpression` function with\n       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.\n       *\n       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.\n       *\n       * # Example\n       * ```js\n           var scope = ...;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n       * ```\n       *\n       */\n      $digest: function() {\n        var watch, value, last, fn, get,\n            watchers,\n            length,\n            dirty, ttl = TTL,\n            next, current, target = this,\n            watchLog = [],\n            logIdx, logMsg, asyncTask;\n\n        beginPhase('$digest');\n        // Check for changes to browser url that happened in sync before the call to $digest\n        $browser.$$checkUrlChange();\n\n        if (this === $rootScope && applyAsyncId !== null) {\n          // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then\n          // cancel the scheduled $apply and flush the queue of expressions to be evaluated.\n          $browser.defer.cancel(applyAsyncId);\n          flushApplyAsync();\n        }\n\n        lastDirtyWatch = null;\n\n        do { // \"while dirty\" loop\n          dirty = false;\n          current = target;\n\n          while (asyncQueue.length) {\n            try {\n              asyncTask = asyncQueue.shift();\n              asyncTask.scope.$eval(asyncTask.expression, asyncTask.locals);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n            lastDirtyWatch = null;\n          }\n\n          traverseScopesLoop:\n          do { // \"traverse the scopes\" loop\n            if ((watchers = current.$$watchers)) {\n              // process our watches\n              length = watchers.length;\n              while (length--) {\n                try {\n                  watch = watchers[length];\n                  // Most common watches are on primitives, in which case we can short\n                  // circuit it with === operator, only when === fails do we use .equals\n                  if (watch) {\n                    get = watch.get;\n                    if ((value = get(current)) !== (last = watch.last) &&\n                        !(watch.eq\n                            ? equals(value, last)\n                            : (typeof value === 'number' && typeof last === 'number'\n                               && isNaN(value) && isNaN(last)))) {\n                      dirty = true;\n                      lastDirtyWatch = watch;\n                      watch.last = watch.eq ? copy(value, null) : value;\n                      fn = watch.fn;\n                      fn(value, ((last === initWatchVal) ? value : last), current);\n                      if (ttl < 5) {\n                        logIdx = 4 - ttl;\n                        if (!watchLog[logIdx]) watchLog[logIdx] = [];\n                        watchLog[logIdx].push({\n                          msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp,\n                          newVal: value,\n                          oldVal: last\n                        });\n                      }\n                    } else if (watch === lastDirtyWatch) {\n                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers\n                      // have already been tested.\n                      dirty = false;\n                      break traverseScopesLoop;\n                    }\n                  }\n                } catch (e) {\n                  $exceptionHandler(e);\n                }\n              }\n            }\n\n            // Insanity Warning: scope depth-first traversal\n            // yes, this code is a bit crazy, but it works and we have tests to prove it!\n            // this piece should be kept in sync with the traversal in $broadcast\n            if (!(next = ((current.$$watchersCount && current.$$childHead) ||\n                (current !== target && current.$$nextSibling)))) {\n              while (current !== target && !(next = current.$$nextSibling)) {\n                current = current.$parent;\n              }\n            }\n          } while ((current = next));\n\n          // `break traverseScopesLoop;` takes us to here\n\n          if ((dirty || asyncQueue.length) && !(ttl--)) {\n            clearPhase();\n            throw $rootScopeMinErr('infdig',\n                '{0} $digest() iterations reached. Aborting!\\n' +\n                'Watchers fired in the last 5 iterations: {1}',\n                TTL, watchLog);\n          }\n\n        } while (dirty || asyncQueue.length);\n\n        clearPhase();\n\n        while (postDigestQueue.length) {\n          try {\n            postDigestQueue.shift()();\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        }\n      },\n\n\n      /**\n       * @ngdoc event\n       * @name $rootScope.Scope#$destroy\n       * @eventType broadcast on scope being destroyed\n       *\n       * @description\n       * Broadcasted when a scope and its children are being destroyed.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$destroy\n       * @kind function\n       *\n       * @description\n       * Removes the current scope (and all of its children) from the parent scope. Removal implies\n       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer\n       * propagate to the current scope and its children. Removal also implies that the current\n       * scope is eligible for garbage collection.\n       *\n       * The `$destroy()` is usually used by directives such as\n       * {@link ng.directive:ngRepeat ngRepeat} for managing the\n       * unrolling of the loop.\n       *\n       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.\n       * Application code can register a `$destroy` event handler that will give it a chance to\n       * perform any necessary cleanup.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n      $destroy: function() {\n        // We can't destroy a scope that has been already destroyed.\n        if (this.$$destroyed) return;\n        var parent = this.$parent;\n\n        this.$broadcast('$destroy');\n        this.$$destroyed = true;\n\n        if (this === $rootScope) {\n          //Remove handlers attached to window when $rootScope is removed\n          $browser.$$applicationDestroyed();\n        }\n\n        incrementWatchersCount(this, -this.$$watchersCount);\n        for (var eventName in this.$$listenerCount) {\n          decrementListenerCount(this, this.$$listenerCount[eventName], eventName);\n        }\n\n        // sever all the references to parent scopes (after this cleanup, the current scope should\n        // not be retained by any of our references and should be eligible for garbage collection)\n        if (parent && parent.$$childHead == this) parent.$$childHead = this.$$nextSibling;\n        if (parent && parent.$$childTail == this) parent.$$childTail = this.$$prevSibling;\n        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;\n        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;\n\n        // Disable listeners, watchers and apply/digest methods\n        this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop;\n        this.$on = this.$watch = this.$watchGroup = function() { return noop; };\n        this.$$listeners = {};\n\n        // Disconnect the next sibling to prevent `cleanUpScope` destroying those too\n        this.$$nextSibling = null;\n        cleanUpScope(this);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$eval\n       * @kind function\n       *\n       * @description\n       * Executes the `expression` on the current scope and returns the result. Any exceptions in\n       * the expression are propagated (uncaught). This is useful when evaluating Angular\n       * expressions.\n       *\n       * # Example\n       * ```js\n           var scope = ng.$rootScope.Scope();\n           scope.a = 1;\n           scope.b = 2;\n\n           expect(scope.$eval('a+b')).toEqual(3);\n           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);\n       * ```\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       * @returns {*} The result of evaluating the expression.\n       */\n      $eval: function(expr, locals) {\n        return $parse(expr)(this, locals);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$evalAsync\n       * @kind function\n       *\n       * @description\n       * Executes the expression on the current scope at a later point in time.\n       *\n       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only\n       * that:\n       *\n       *   - it will execute after the function that scheduled the evaluation (preferably before DOM\n       *     rendering).\n       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after\n       *     `expression` execution.\n       *\n       * Any exceptions from the execution of the expression are forwarded to the\n       * {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle\n       * will be scheduled. However, it is encouraged to always call code that changes the model\n       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       */\n      $evalAsync: function(expr, locals) {\n        // if we are outside of an $digest loop and this is the first time we are scheduling async\n        // task also schedule async auto-flush\n        if (!$rootScope.$$phase && !asyncQueue.length) {\n          $browser.defer(function() {\n            if (asyncQueue.length) {\n              $rootScope.$digest();\n            }\n          });\n        }\n\n        asyncQueue.push({scope: this, expression: $parse(expr), locals: locals});\n      },\n\n      $$postDigest: function(fn) {\n        postDigestQueue.push(fn);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$apply\n       * @kind function\n       *\n       * @description\n       * `$apply()` is used to execute an expression in angular from outside of the angular\n       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).\n       * Because we are calling into the angular framework we need to perform proper scope life\n       * cycle of {@link ng.$exceptionHandler exception handling},\n       * {@link ng.$rootScope.Scope#$digest executing watches}.\n       *\n       * ## Life cycle\n       *\n       * # Pseudo-Code of `$apply()`\n       * ```js\n           function $apply(expr) {\n             try {\n               return $eval(expr);\n             } catch (e) {\n               $exceptionHandler(e);\n             } finally {\n               $root.$digest();\n             }\n           }\n       * ```\n       *\n       *\n       * Scope's `$apply()` method transitions through the following stages:\n       *\n       * 1. The {@link guide/expression expression} is executed using the\n       *    {@link ng.$rootScope.Scope#$eval $eval()} method.\n       * 2. Any exceptions from the execution of the expression are forwarded to the\n       *    {@link ng.$exceptionHandler $exceptionHandler} service.\n       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the\n       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.\n       *\n       *\n       * @param {(string|function())=} exp An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       *\n       * @returns {*} The result of evaluating the expression.\n       */\n      $apply: function(expr) {\n        try {\n          beginPhase('$apply');\n          try {\n            return this.$eval(expr);\n          } finally {\n            clearPhase();\n          }\n        } catch (e) {\n          $exceptionHandler(e);\n        } finally {\n          try {\n            $rootScope.$digest();\n          } catch (e) {\n            $exceptionHandler(e);\n            throw e;\n          }\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$applyAsync\n       * @kind function\n       *\n       * @description\n       * Schedule the invocation of $apply to occur at a later time. The actual time difference\n       * varies across browsers, but is typically around ~10 milliseconds.\n       *\n       * This can be used to queue up multiple expressions which need to be evaluated in the same\n       * digest.\n       *\n       * @param {(string|function())=} exp An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       */\n      $applyAsync: function(expr) {\n        var scope = this;\n        expr && applyAsyncQueue.push($applyAsyncExpression);\n        expr = $parse(expr);\n        scheduleApplyAsync();\n\n        function $applyAsyncExpression() {\n          scope.$eval(expr);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$on\n       * @kind function\n       *\n       * @description\n       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for\n       * discussion of event life cycle.\n       *\n       * The event listener function format is: `function(event, args...)`. The `event` object\n       * passed into the listener has the following attributes:\n       *\n       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or\n       *     `$broadcast`-ed.\n       *   - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the\n       *     event propagates through the scope hierarchy, this property is set to null.\n       *   - `name` - `{string}`: name of the event.\n       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel\n       *     further event propagation (available only for events that were `$emit`-ed).\n       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag\n       *     to true.\n       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.\n       *\n       * @param {string} name Event name to listen on.\n       * @param {function(event, ...args)} listener Function to call when the event is emitted.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $on: function(name, listener) {\n        var namedListeners = this.$$listeners[name];\n        if (!namedListeners) {\n          this.$$listeners[name] = namedListeners = [];\n        }\n        namedListeners.push(listener);\n\n        var current = this;\n        do {\n          if (!current.$$listenerCount[name]) {\n            current.$$listenerCount[name] = 0;\n          }\n          current.$$listenerCount[name]++;\n        } while ((current = current.$parent));\n\n        var self = this;\n        return function() {\n          var indexOfListener = namedListeners.indexOf(listener);\n          if (indexOfListener !== -1) {\n            namedListeners[indexOfListener] = null;\n            decrementListenerCount(self, 1, name);\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$emit\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` upwards through the scope hierarchy notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$emit` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event traverses upwards toward the root scope and calls all\n       * registered listeners along the way. The event will stop propagating if one of the listeners\n       * cancels it.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to emit.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).\n       */\n      $emit: function(name, args) {\n        var empty = [],\n            namedListeners,\n            scope = this,\n            stopPropagation = false,\n            event = {\n              name: name,\n              targetScope: scope,\n              stopPropagation: function() {stopPropagation = true;},\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            i, length;\n\n        do {\n          namedListeners = scope.$$listeners[name] || empty;\n          event.currentScope = scope;\n          for (i = 0, length = namedListeners.length; i < length; i++) {\n\n            // if listeners were deregistered, defragment the array\n            if (!namedListeners[i]) {\n              namedListeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n            try {\n              //allow all listeners attached to the current scope to run\n              namedListeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          //if any listener on the current scope stops propagation, prevent bubbling\n          if (stopPropagation) {\n            event.currentScope = null;\n            return event;\n          }\n          //traverse upwards\n          scope = scope.$parent;\n        } while (scope);\n\n        event.currentScope = null;\n\n        return event;\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$broadcast\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$broadcast` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current\n       * scope and calls all registered listeners along the way. The event cannot be canceled.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to broadcast.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}\n       */\n      $broadcast: function(name, args) {\n        var target = this,\n            current = target,\n            next = target,\n            event = {\n              name: name,\n              targetScope: target,\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            };\n\n        if (!target.$$listenerCount[name]) return event;\n\n        var listenerArgs = concat([event], arguments, 1),\n            listeners, i, length;\n\n        //down while you can, then up and next sibling or up and next sibling until back at root\n        while ((current = next)) {\n          event.currentScope = current;\n          listeners = current.$$listeners[name] || [];\n          for (i = 0, length = listeners.length; i < length; i++) {\n            // if listeners were deregistered, defragment the array\n            if (!listeners[i]) {\n              listeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n\n            try {\n              listeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n\n          // Insanity Warning: scope depth-first traversal\n          // yes, this code is a bit crazy, but it works and we have tests to prove it!\n          // this piece should be kept in sync with the traversal in $digest\n          // (though it differs due to having the extra check for $$listenerCount)\n          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||\n              (current !== target && current.$$nextSibling)))) {\n            while (current !== target && !(next = current.$$nextSibling)) {\n              current = current.$parent;\n            }\n          }\n        }\n\n        event.currentScope = null;\n        return event;\n      }\n    };\n\n    var $rootScope = new Scope();\n\n    //The internal queues. Expose them on the $rootScope for debugging/testing purposes.\n    var asyncQueue = $rootScope.$$asyncQueue = [];\n    var postDigestQueue = $rootScope.$$postDigestQueue = [];\n    var applyAsyncQueue = $rootScope.$$applyAsyncQueue = [];\n\n    return $rootScope;\n\n\n    function beginPhase(phase) {\n      if ($rootScope.$$phase) {\n        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);\n      }\n\n      $rootScope.$$phase = phase;\n    }\n\n    function clearPhase() {\n      $rootScope.$$phase = null;\n    }\n\n    function incrementWatchersCount(current, count) {\n      do {\n        current.$$watchersCount += count;\n      } while ((current = current.$parent));\n    }\n\n    function decrementListenerCount(current, count, name) {\n      do {\n        current.$$listenerCount[name] -= count;\n\n        if (current.$$listenerCount[name] === 0) {\n          delete current.$$listenerCount[name];\n        }\n      } while ((current = current.$parent));\n    }\n\n    /**\n     * function used as an initial value for watchers.\n     * because it's unique we can easily tell it apart from other values\n     */\n    function initWatchVal() {}\n\n    function flushApplyAsync() {\n      while (applyAsyncQueue.length) {\n        try {\n          applyAsyncQueue.shift()();\n        } catch (e) {\n          $exceptionHandler(e);\n        }\n      }\n      applyAsyncId = null;\n    }\n\n    function scheduleApplyAsync() {\n      if (applyAsyncId === null) {\n        applyAsyncId = $browser.defer(function() {\n          $rootScope.$apply(flushApplyAsync);\n        });\n      }\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $rootElement\n *\n * @description\n * The root element of Angular application. This is either the element where {@link\n * ng.directive:ngApp ngApp} was declared or the element passed into\n * {@link angular.bootstrap}. The element represents the root element of application. It is also the\n * location where the application's {@link auto.$injector $injector} service gets\n * published, and can be retrieved using `$rootElement.injector()`.\n */\n\n\n// the implementation is in angular.bootstrap\n\n/**\n * @description\n * Private service to sanitize uris for links and images. Used by $compile and $sanitize.\n */\nfunction $$SanitizeUriProvider() {\n  var aHrefSanitizationWhitelist = /^\\s*(https?|ftp|mailto|tel|file):/,\n    imgSrcSanitizationWhitelist = /^\\s*((https?|ftp|file|blob):|data:image\\/)/;\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      aHrefSanitizationWhitelist = regexp;\n      return this;\n    }\n    return aHrefSanitizationWhitelist;\n  };\n\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      imgSrcSanitizationWhitelist = regexp;\n      return this;\n    }\n    return imgSrcSanitizationWhitelist;\n  };\n\n  this.$get = function() {\n    return function sanitizeUri(uri, isImage) {\n      var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;\n      var normalizedVal;\n      normalizedVal = urlResolve(uri).href;\n      if (normalizedVal !== '' && !normalizedVal.match(regex)) {\n        return 'unsafe:' + normalizedVal;\n      }\n      return uri;\n    };\n  };\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $sceMinErr = minErr('$sce');\n\nvar SCE_CONTEXTS = {\n  HTML: 'html',\n  CSS: 'css',\n  URL: 'url',\n  // RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a\n  // url.  (e.g. ng-include, script src, templateUrl)\n  RESOURCE_URL: 'resourceUrl',\n  JS: 'js'\n};\n\n// Helper functions follow.\n\nfunction adjustMatcher(matcher) {\n  if (matcher === 'self') {\n    return matcher;\n  } else if (isString(matcher)) {\n    // Strings match exactly except for 2 wildcards - '*' and '**'.\n    // '*' matches any character except those from the set ':/.?&'.\n    // '**' matches any character (like .* in a RegExp).\n    // More than 2 *'s raises an error as it's ill defined.\n    if (matcher.indexOf('***') > -1) {\n      throw $sceMinErr('iwcard',\n          'Illegal sequence *** in string matcher.  String: {0}', matcher);\n    }\n    matcher = escapeForRegexp(matcher).\n                  replace('\\\\*\\\\*', '.*').\n                  replace('\\\\*', '[^:/.?&;]*');\n    return new RegExp('^' + matcher + '$');\n  } else if (isRegExp(matcher)) {\n    // The only other type of matcher allowed is a Regexp.\n    // Match entire URL / disallow partial matches.\n    // Flags are reset (i.e. no global, ignoreCase or multiline)\n    return new RegExp('^' + matcher.source + '$');\n  } else {\n    throw $sceMinErr('imatcher',\n        'Matchers may only be \"self\", string patterns or RegExp objects');\n  }\n}\n\n\nfunction adjustMatchers(matchers) {\n  var adjustedMatchers = [];\n  if (isDefined(matchers)) {\n    forEach(matchers, function(matcher) {\n      adjustedMatchers.push(adjustMatcher(matcher));\n    });\n  }\n  return adjustedMatchers;\n}\n\n\n/**\n * @ngdoc service\n * @name $sceDelegate\n * @kind function\n *\n * @description\n *\n * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict\n * Contextual Escaping (SCE)} services to AngularJS.\n *\n * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of\n * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is\n * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to\n * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things\n * work because `$sce` delegates to `$sceDelegate` for these operations.\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.\n *\n * The default instance of `$sceDelegate` should work out of the box with little pain.  While you\n * can override it completely to change the behavior of `$sce`, the common case would\n * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting\n * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as\n * templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist\n * $sceDelegateProvider.resourceUrlWhitelist} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n */\n\n/**\n * @ngdoc provider\n * @name $sceDelegateProvider\n * @description\n *\n * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate\n * $sceDelegate} service.  This allows one to get/set the whitelists and blacklists used to ensure\n * that the URLs used for sourcing Angular templates are safe.  Refer {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and\n * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n *\n * For the general details about this service in Angular, read the main page for {@link ng.$sce\n * Strict Contextual Escaping (SCE)}.\n *\n * **Example**:  Consider the following case. <a name=\"example\"></a>\n *\n * - your app is hosted at url `http://myapp.example.com/`\n * - but some of your templates are hosted on other domains you control such as\n *   `http://srv01.assets.example.com/`,  `http://srv02.assets.example.com/`, etc.\n * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.\n *\n * Here is what a secure configuration for this scenario might look like:\n *\n * ```\n *  angular.module('myApp', []).config(function($sceDelegateProvider) {\n *    $sceDelegateProvider.resourceUrlWhitelist([\n *      // Allow same origin resource loads.\n *      'self',\n *      // Allow loading from our assets domain.  Notice the difference between * and **.\n *      'http://srv*.assets.example.com/**'\n *    ]);\n *\n *    // The blacklist overrides the whitelist so the open redirect here is blocked.\n *    $sceDelegateProvider.resourceUrlBlacklist([\n *      'http://myapp.example.com/clickThru**'\n *    ]);\n *  });\n * ```\n */\n\nfunction $SceDelegateProvider() {\n  this.SCE_CONTEXTS = SCE_CONTEXTS;\n\n  // Resource URLs can also be trusted by policy.\n  var resourceUrlWhitelist = ['self'],\n      resourceUrlBlacklist = [];\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlWhitelist\n   * @kind function\n   *\n   * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value\n   *    provided.  This must be an array or null.  A snapshot of this array is used so further\n   *    changes to the array are ignored.\n   *\n   *    Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *    allowed in this array.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** an empty whitelist array will block all URLs!\n   *    </div>\n   *\n   * @return {Array} the currently set whitelist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is `['self']` allowing only\n   * same origin resource requests.\n   *\n   * @description\n   * Sets/Gets the whitelist of trusted resource URLs.\n   */\n  this.resourceUrlWhitelist = function(value) {\n    if (arguments.length) {\n      resourceUrlWhitelist = adjustMatchers(value);\n    }\n    return resourceUrlWhitelist;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlBlacklist\n   * @kind function\n   *\n   * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value\n   *    provided.  This must be an array or null.  A snapshot of this array is used so further\n   *    changes to the array are ignored.\n   *\n   *    Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *    allowed in this array.\n   *\n   *    The typical usage for the blacklist is to **block\n   *    [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as\n   *    these would otherwise be trusted but actually return content from the redirected domain.\n   *\n   *    Finally, **the blacklist overrides the whitelist** and has the final say.\n   *\n   * @return {Array} the currently set blacklist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there\n   * is no blacklist.)\n   *\n   * @description\n   * Sets/Gets the blacklist of trusted resource URLs.\n   */\n\n  this.resourceUrlBlacklist = function(value) {\n    if (arguments.length) {\n      resourceUrlBlacklist = adjustMatchers(value);\n    }\n    return resourceUrlBlacklist;\n  };\n\n  this.$get = ['$injector', function($injector) {\n\n    var htmlSanitizer = function htmlSanitizer(html) {\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    };\n\n    if ($injector.has('$sanitize')) {\n      htmlSanitizer = $injector.get('$sanitize');\n    }\n\n\n    function matchUrl(matcher, parsedUrl) {\n      if (matcher === 'self') {\n        return urlIsSameOrigin(parsedUrl);\n      } else {\n        // definitely a regex.  See adjustMatchers()\n        return !!matcher.exec(parsedUrl.href);\n      }\n    }\n\n    function isResourceUrlAllowedByPolicy(url) {\n      var parsedUrl = urlResolve(url.toString());\n      var i, n, allowed = false;\n      // Ensure that at least one item from the whitelist allows this url.\n      for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {\n        if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {\n          allowed = true;\n          break;\n        }\n      }\n      if (allowed) {\n        // Ensure that no item from the blacklist blocked this url.\n        for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {\n          if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {\n            allowed = false;\n            break;\n          }\n        }\n      }\n      return allowed;\n    }\n\n    function generateHolderType(Base) {\n      var holderType = function TrustedValueHolderType(trustedValue) {\n        this.$$unwrapTrustedValue = function() {\n          return trustedValue;\n        };\n      };\n      if (Base) {\n        holderType.prototype = new Base();\n      }\n      holderType.prototype.valueOf = function sceValueOf() {\n        return this.$$unwrapTrustedValue();\n      };\n      holderType.prototype.toString = function sceToString() {\n        return this.$$unwrapTrustedValue().toString();\n      };\n      return holderType;\n    }\n\n    var trustedValueHolderBase = generateHolderType(),\n        byType = {};\n\n    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#trustAs\n     *\n     * @description\n     * Returns an object that is trusted by angular for use in specified strict\n     * contextual escaping contexts (such as ng-bind-html, ng-include, any src\n     * attribute interpolation, any dom event binding attribute interpolation\n     * such as for onclick,  etc.) that uses the provided value.\n     * See {@link ng.$sce $sce} for enabling strict contextual escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resourceUrl, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n    function trustAs(type, trustedValue) {\n      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (!Constructor) {\n        throw $sceMinErr('icontext',\n            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',\n            type, trustedValue);\n      }\n      if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') {\n        return trustedValue;\n      }\n      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting\n      // mutable objects, we ensure here that the value passed in is actually a string.\n      if (typeof trustedValue !== 'string') {\n        throw $sceMinErr('itype',\n            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',\n            type);\n      }\n      return new Constructor(trustedValue);\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#valueOf\n     *\n     * @description\n     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.\n     *\n     * If the passed parameter is not a value that had been returned by {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is.\n     *\n     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}\n     *      call or anything else.\n     * @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns\n     *     `value` unchanged.\n     */\n    function valueOf(maybeTrusted) {\n      if (maybeTrusted instanceof trustedValueHolderBase) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      } else {\n        return maybeTrusted;\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#getTrusted\n     *\n     * @description\n     * Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and\n     * returns the originally supplied value if the queried context type is a supertype of the\n     * created type.  If this condition isn't satisfied, throws an exception.\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} call.\n     * @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if valid in this context.  Otherwise, throws an exception.\n     */\n    function getTrusted(type, maybeTrusted) {\n      if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') {\n        return maybeTrusted;\n      }\n      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (constructor && maybeTrusted instanceof constructor) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      }\n      // If we get here, then we may only take one of two actions.\n      // 1. sanitize the value for the requested type, or\n      // 2. throw an exception.\n      if (type === SCE_CONTEXTS.RESOURCE_URL) {\n        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {\n          return maybeTrusted;\n        } else {\n          throw $sceMinErr('insecurl',\n              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',\n              maybeTrusted.toString());\n        }\n      } else if (type === SCE_CONTEXTS.HTML) {\n        return htmlSanitizer(maybeTrusted);\n      }\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    }\n\n    return { trustAs: trustAs,\n             getTrusted: getTrusted,\n             valueOf: valueOf };\n  }];\n}\n\n\n/**\n * @ngdoc provider\n * @name $sceProvider\n * @description\n *\n * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.\n * -   enable/disable Strict Contextual Escaping (SCE) in a module\n * -   override the default implementation with a custom delegate\n *\n * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.\n */\n\n/* jshint maxlen: false*/\n\n/**\n * @ngdoc service\n * @name $sce\n * @kind function\n *\n * @description\n *\n * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.\n *\n * # Strict Contextual Escaping\n *\n * Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain\n * contexts to result in a value that is marked as safe to use for that context.  One example of\n * such a context is binding arbitrary html controlled by the user via `ng-bind-html`.  We refer\n * to these contexts as privileged or SCE contexts.\n *\n * As of version 1.2, Angular ships with SCE enabled by default.\n *\n * Note:  When enabled (the default), IE<11 in quirks mode is not supported.  In this mode, IE<11 allow\n * one to execute arbitrary javascript by the use of the expression() syntax.  Refer\n * <http://blogs.msdn.com/b/ie/archive/2008/10/16/ending-expressions.aspx> to learn more about them.\n * You can ensure your document is in standards mode and not quirks mode by adding `<!doctype html>`\n * to the top of your HTML document.\n *\n * SCE assists in writing code in way that (a) is secure by default and (b) makes auditing for\n * security vulnerabilities such as XSS, clickjacking, etc. a lot easier.\n *\n * Here's an example of a binding in a privileged context:\n *\n * ```\n * <input ng-model=\"userHtml\" aria-label=\"User input\">\n * <div ng-bind-html=\"userHtml\"></div>\n * ```\n *\n * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE\n * disabled, this application allows the user to render arbitrary HTML into the DIV.\n * In a more realistic example, one may be rendering user comments, blog articles, etc. via\n * bindings.  (HTML is just one example of a context where rendering user controlled input creates\n * security vulnerabilities.)\n *\n * For the case of HTML, you might use a library, either on the client side, or on the server side,\n * to sanitize unsafe HTML before binding to the value and rendering it in the document.\n *\n * How would you ensure that every place that used these types of bindings was bound to a value that\n * was sanitized by your library (or returned as safe for rendering by your server?)  How can you\n * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some\n * properties/fields and forgot to update the binding to the sanitized value?\n *\n * To be secure by default, you want to ensure that any such bindings are disallowed unless you can\n * determine that something explicitly says it's safe to use a value for binding in that\n * context.  You can then audit your code (a simple grep would do) to ensure that this is only done\n * for those values that you can easily tell are safe - because they were received from your server,\n * sanitized by your library, etc.  You can organize your codebase to help with this - perhaps\n * allowing only the files in a specific directory to do this.  Ensuring that the internal API\n * exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task.\n *\n * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}\n * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to\n * obtain values that will be accepted by SCE / privileged contexts.\n *\n *\n * ## How does it work?\n *\n * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted\n * $sce.getTrusted(context, value)} rather than to the value directly.  Directives use {@link\n * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the\n * {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals.\n *\n * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link\n * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly\n * simplified):\n *\n * ```\n * var ngBindHtmlDirective = ['$sce', function($sce) {\n *   return function(scope, element, attr) {\n *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {\n *       element.html(value || '');\n *     });\n *   };\n * }];\n * ```\n *\n * ## Impact on loading templates\n *\n * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as\n * `templateUrl`'s specified by {@link guide/directive directives}.\n *\n * By default, Angular only loads templates from the same domain and protocol as the application\n * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or\n * protocols, you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist\n * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.\n *\n * *Please note*:\n * The browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy apply in addition to this and may further restrict whether the template is successfully\n * loaded.  This means that without the right CORS policy, loading templates from a different domain\n * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some\n * browsers.\n *\n * ## This feels like too much overhead\n *\n * It's important to remember that SCE only applies to interpolation expressions.\n *\n * If your expressions are constant literals, they're automatically trusted and you don't need to\n * call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g.\n * `<div ng-bind-html=\"'<b>implicitly trusted</b>'\"></div>`) just works.\n *\n * Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them\n * through {@link ng.$sce#getTrusted $sce.getTrusted}.  SCE doesn't play a role here.\n *\n * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load\n * templates in `ng-include` from your application's domain without having to even know about SCE.\n * It blocks loading templates from other domains or loading templates over http from an https\n * served document.  You can change these by setting your own custom {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.\n *\n * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an\n * application that's secure and can be audited to verify that with much more ease than bolting\n * security onto an application later.\n *\n * <a name=\"contexts\"></a>\n * ## What trusted context types are supported?\n *\n * | Context             | Notes          |\n * |---------------------|----------------|\n * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. |\n * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |\n * | `$sce.URL`          | For URLs that are safe to follow as links.  Currently unused (`<a href=` and `<img src=` sanitize their urls and don't constitute an SCE context. |\n * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. |\n * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |\n *\n * ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name=\"resourceUrlPatternItem\"></a>\n *\n *  Each element in these arrays must be one of the following:\n *\n *  - **'self'**\n *    - The special **string**, `'self'`, can be used to match against all URLs of the **same\n *      domain** as the application document using the **same protocol**.\n *  - **String** (except the special value `'self'`)\n *    - The string is matched against the full *normalized / absolute URL* of the resource\n *      being tested (substring matches are not good enough.)\n *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters\n *      match themselves.\n *    - `*`: matches zero or more occurrences of any character other than one of the following 6\n *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'.  It's a useful wildcard for use\n *      in a whitelist.\n *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not\n *      appropriate for use in a scheme, domain, etc. as it would match too much.  (e.g.\n *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might\n *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.\n *      http://foo.example.com/templates/**).\n *  - **RegExp** (*see caveat below*)\n *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax\n *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to\n *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should\n *      have good test coverage).  For instance, the use of `.` in the regex is correct only in a\n *      small number of cases.  A `.` character in the regex used when matching the scheme or a\n *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It\n *      is highly recommended to use the string patterns and only fall back to regular expressions\n *      as a last resort.\n *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is\n *      matched against the **entire** *normalized / absolute URL* of the resource being tested\n *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags\n *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.\n *    - If you are generating your JavaScript from some other templating engine (not\n *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),\n *      remember to escape your regular expression (and be aware that you might need more than\n *      one level of escaping depending on your templating engine and the way you interpolated\n *      the value.)  Do make use of your platform's escaping mechanism as it might be good\n *      enough before coding your own.  E.g. Ruby has\n *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)\n *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).\n *      Javascript lacks a similar built in function for escaping.  Take a look at Google\n *      Closure library's [goog.string.regExpEscape(s)](\n *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.\n *\n * ## Show me an example using SCE.\n *\n * <example module=\"mySceApp\" deps=\"angular-sanitize.js\">\n * <file name=\"index.html\">\n *   <div ng-controller=\"AppController as myCtrl\">\n *     <i ng-bind-html=\"myCtrl.explicitlyTrustedHtml\" id=\"explicitlyTrustedHtml\"></i><br><br>\n *     <b>User comments</b><br>\n *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when\n *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an\n *     exploit.\n *     <div class=\"well\">\n *       <div ng-repeat=\"userComment in myCtrl.userComments\">\n *         <b>{{userComment.name}}</b>:\n *         <span ng-bind-html=\"userComment.htmlComment\" class=\"htmlComment\"></span>\n *         <br>\n *       </div>\n *     </div>\n *   </div>\n * </file>\n *\n * <file name=\"script.js\">\n *   angular.module('mySceApp', ['ngSanitize'])\n *     .controller('AppController', ['$http', '$templateCache', '$sce',\n *       function($http, $templateCache, $sce) {\n *         var self = this;\n *         $http.get(\"test_data.json\", {cache: $templateCache}).success(function(userComments) {\n *           self.userComments = userComments;\n *         });\n *         self.explicitlyTrustedHtml = $sce.trustAsHtml(\n *             '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *             'sanitization.&quot;\">Hover over this text.</span>');\n *       }]);\n * </file>\n *\n * <file name=\"test_data.json\">\n * [\n *   { \"name\": \"Alice\",\n *     \"htmlComment\":\n *         \"<span onmouseover='this.textContent=\\\"PWN3D!\\\"'>Is <i>anyone</i> reading this?</span>\"\n *   },\n *   { \"name\": \"Bob\",\n *     \"htmlComment\": \"<i>Yes!</i>  Am I the only other one?\"\n *   }\n * ]\n * </file>\n *\n * <file name=\"protractor.js\" type=\"protractor\">\n *   describe('SCE doc demo', function() {\n *     it('should sanitize untrusted values', function() {\n *       expect(element.all(by.css('.htmlComment')).first().getInnerHtml())\n *           .toBe('<span>Is <i>anyone</i> reading this?</span>');\n *     });\n *\n *     it('should NOT sanitize explicitly trusted values', function() {\n *       expect(element(by.id('explicitlyTrustedHtml')).getInnerHtml()).toBe(\n *           '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *           'sanitization.&quot;\">Hover over this text.</span>');\n *     });\n *   });\n * </file>\n * </example>\n *\n *\n *\n * ## Can I disable SCE completely?\n *\n * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits\n * for little coding overhead.  It will be much harder to take an SCE disabled application and\n * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE\n * for cases where you have a lot of existing code that was written before SCE was introduced and\n * you're migrating them a module at a time.\n *\n * That said, here's how you can completely disable SCE:\n *\n * ```\n * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {\n *   // Completely disable SCE.  For demonstration purposes only!\n *   // Do not use in new projects.\n *   $sceProvider.enabled(false);\n * });\n * ```\n *\n */\n/* jshint maxlen: 100 */\n\nfunction $SceProvider() {\n  var enabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $sceProvider#enabled\n   * @kind function\n   *\n   * @param {boolean=} value If provided, then enables/disables SCE.\n   * @return {boolean} true if SCE is enabled, false otherwise.\n   *\n   * @description\n   * Enables/disables SCE and returns the current value.\n   */\n  this.enabled = function(value) {\n    if (arguments.length) {\n      enabled = !!value;\n    }\n    return enabled;\n  };\n\n\n  /* Design notes on the default implementation for SCE.\n   *\n   * The API contract for the SCE delegate\n   * -------------------------------------\n   * The SCE delegate object must provide the following 3 methods:\n   *\n   * - trustAs(contextEnum, value)\n   *     This method is used to tell the SCE service that the provided value is OK to use in the\n   *     contexts specified by contextEnum.  It must return an object that will be accepted by\n   *     getTrusted() for a compatible contextEnum and return this value.\n   *\n   * - valueOf(value)\n   *     For values that were not produced by trustAs(), return them as is.  For values that were\n   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if\n   *     trustAs is wrapping the given values into some type, this operation unwraps it when given\n   *     such a value.\n   *\n   * - getTrusted(contextEnum, value)\n   *     This function should return the a value that is safe to use in the context specified by\n   *     contextEnum or throw and exception otherwise.\n   *\n   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be\n   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For\n   * instance, an implementation could maintain a registry of all trusted objects by context.  In\n   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would\n   * return the same object passed in if it was found in the registry under a compatible context or\n   * throw an exception otherwise.  An implementation might only wrap values some of the time based\n   * on some criteria.  getTrusted() might return a value and not throw an exception for special\n   * constants or objects even if not wrapped.  All such implementations fulfill this contract.\n   *\n   *\n   * A note on the inheritance model for SCE contexts\n   * ------------------------------------------------\n   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This\n   * is purely an implementation details.\n   *\n   * The contract is simply this:\n   *\n   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)\n   *     will also succeed.\n   *\n   * Inheritance happens to capture this in a natural way.  In some future, we\n   * may not use inheritance anymore.  That is OK because no code outside of\n   * sce.js and sceSpecs.js would need to be aware of this detail.\n   */\n\n  this.$get = ['$parse', '$sceDelegate', function(\n                $parse,   $sceDelegate) {\n    // Prereq: Ensure that we're not running in IE<11 quirks mode.  In that mode, IE < 11 allow\n    // the \"expression(javascript expression)\" syntax which is insecure.\n    if (enabled && msie < 8) {\n      throw $sceMinErr('iequirks',\n        'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' +\n        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +\n        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');\n    }\n\n    var sce = shallowCopy(SCE_CONTEXTS);\n\n    /**\n     * @ngdoc method\n     * @name $sce#isEnabled\n     * @kind function\n     *\n     * @return {Boolean} true if SCE is enabled, false otherwise.  If you want to set the value, you\n     * have to do it at module config time on {@link ng.$sceProvider $sceProvider}.\n     *\n     * @description\n     * Returns a boolean indicating if SCE is enabled.\n     */\n    sce.isEnabled = function() {\n      return enabled;\n    };\n    sce.trustAs = $sceDelegate.trustAs;\n    sce.getTrusted = $sceDelegate.getTrusted;\n    sce.valueOf = $sceDelegate.valueOf;\n\n    if (!enabled) {\n      sce.trustAs = sce.getTrusted = function(type, value) { return value; };\n      sce.valueOf = identity;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAs\n     *\n     * @description\n     * Converts Angular {@link guide/expression expression} into a function.  This is like {@link\n     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it\n     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,\n     * *result*)}\n     *\n     * @param {string} type The kind of SCE context in which this result will be used.\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n    sce.parseAs = function sceParseAs(type, expr) {\n      var parsed = $parse(expr);\n      if (parsed.literal && parsed.constant) {\n        return parsed;\n      } else {\n        return $parse(expr, function(value) {\n          return sce.getTrusted(type, value);\n        });\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAs\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.  As such,\n     * returns an object that is trusted by angular for use in specified strict contextual\n     * escaping contexts (such as ng-bind-html, ng-include, any src attribute\n     * interpolation, any dom event binding attribute interpolation such as for onclick,  etc.)\n     * that uses the provided value.  See * {@link ng.$sce $sce} for enabling strict contextual\n     * escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resourceUrl, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsHtml(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml\n     *     $sce.getTrustedHtml(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl\n     *     $sce.getTrustedUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl\n     *     $sce.getTrustedResourceUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the return\n     *     value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsJs(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs\n     *     $sce.getTrustedJs(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrusted\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,\n     * takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the\n     * originally supplied value if the queried context type is a supertype of the created type.\n     * If this condition isn't satisfied, throws an exception.\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`}\n     *                         call.\n     * @returns {*} The value the was originally provided to\n     *              {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context.\n     *              Otherwise, throws an exception.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedHtml(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedCss\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedCss(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedJs\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedJs(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.JS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsHtml(expression string)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsCss(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsJs(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    // Shorthand delegations.\n    var parse = sce.parseAs,\n        getTrusted = sce.getTrusted,\n        trustAs = sce.trustAs;\n\n    forEach(SCE_CONTEXTS, function(enumValue, name) {\n      var lName = lowercase(name);\n      sce[camelCase(\"parse_as_\" + lName)] = function(expr) {\n        return parse(enumValue, expr);\n      };\n      sce[camelCase(\"get_trusted_\" + lName)] = function(value) {\n        return getTrusted(enumValue, value);\n      };\n      sce[camelCase(\"trust_as_\" + lName)] = function(value) {\n        return trustAs(enumValue, value);\n      };\n    });\n\n    return sce;\n  }];\n}\n\n/**\n * !!! This is an undocumented \"private\" service !!!\n *\n * @name $sniffer\n * @requires $window\n * @requires $document\n *\n * @property {boolean} history Does the browser support html5 history api ?\n * @property {boolean} transitions Does the browser support CSS transition events ?\n * @property {boolean} animations Does the browser support CSS animation events ?\n *\n * @description\n * This is very simple implementation of testing browser's features.\n */\nfunction $SnifferProvider() {\n  this.$get = ['$window', '$document', function($window, $document) {\n    var eventSupport = {},\n        android =\n          toInt((/android (\\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),\n        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),\n        document = $document[0] || {},\n        vendorPrefix,\n        vendorRegex = /^(Moz|webkit|ms)(?=[A-Z])/,\n        bodyStyle = document.body && document.body.style,\n        transitions = false,\n        animations = false,\n        match;\n\n    if (bodyStyle) {\n      for (var prop in bodyStyle) {\n        if (match = vendorRegex.exec(prop)) {\n          vendorPrefix = match[0];\n          vendorPrefix = vendorPrefix.substr(0, 1).toUpperCase() + vendorPrefix.substr(1);\n          break;\n        }\n      }\n\n      if (!vendorPrefix) {\n        vendorPrefix = ('WebkitOpacity' in bodyStyle) && 'webkit';\n      }\n\n      transitions = !!(('transition' in bodyStyle) || (vendorPrefix + 'Transition' in bodyStyle));\n      animations  = !!(('animation' in bodyStyle) || (vendorPrefix + 'Animation' in bodyStyle));\n\n      if (android && (!transitions ||  !animations)) {\n        transitions = isString(bodyStyle.webkitTransition);\n        animations = isString(bodyStyle.webkitAnimation);\n      }\n    }\n\n\n    return {\n      // Android has history.pushState, but it does not update location correctly\n      // so let's not use the history API at all.\n      // http://code.google.com/p/android/issues/detail?id=17471\n      // https://github.com/angular/angular.js/issues/904\n\n      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has\n      // so let's not use the history API also\n      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined\n      // jshint -W018\n      history: !!($window.history && $window.history.pushState && !(android < 4) && !boxee),\n      // jshint +W018\n      hasEvent: function(event) {\n        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have\n        // it. In particular the event is not fired when backspace or delete key are pressed or\n        // when cut operation is performed.\n        // IE10+ implements 'input' event but it erroneously fires under various situations,\n        // e.g. when placeholder changes, or a form is focused.\n        if (event === 'input' && msie <= 11) return false;\n\n        if (isUndefined(eventSupport[event])) {\n          var divElm = document.createElement('div');\n          eventSupport[event] = 'on' + event in divElm;\n        }\n\n        return eventSupport[event];\n      },\n      csp: csp(),\n      vendorPrefix: vendorPrefix,\n      transitions: transitions,\n      animations: animations,\n      android: android\n    };\n  }];\n}\n\nvar $compileMinErr = minErr('$compile');\n\n/**\n * @ngdoc service\n * @name $templateRequest\n *\n * @description\n * The `$templateRequest` service runs security checks then downloads the provided template using\n * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request\n * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the\n * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the\n * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted\n * when `tpl` is of type string and `$templateCache` has the matching entry.\n *\n * @param {string|TrustedResourceUrl} tpl The HTTP request template URL\n * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty\n *\n * @return {Promise} a promise for the HTTP response data of the given URL.\n *\n * @property {number} totalPendingRequests total amount of pending template requests being downloaded.\n */\nfunction $TemplateRequestProvider() {\n  this.$get = ['$templateCache', '$http', '$q', '$sce', function($templateCache, $http, $q, $sce) {\n    function handleRequestFn(tpl, ignoreRequestError) {\n      handleRequestFn.totalPendingRequests++;\n\n      // We consider the template cache holds only trusted templates, so\n      // there's no need to go through whitelisting again for keys that already\n      // are included in there. This also makes Angular accept any script\n      // directive, no matter its name. However, we still need to unwrap trusted\n      // types.\n      if (!isString(tpl) || isUndefined($templateCache.get(tpl))) {\n        tpl = $sce.getTrustedResourceUrl(tpl);\n      }\n\n      var transformResponse = $http.defaults && $http.defaults.transformResponse;\n\n      if (isArray(transformResponse)) {\n        transformResponse = transformResponse.filter(function(transformer) {\n          return transformer !== defaultHttpResponseTransform;\n        });\n      } else if (transformResponse === defaultHttpResponseTransform) {\n        transformResponse = null;\n      }\n\n      var httpOptions = {\n        cache: $templateCache,\n        transformResponse: transformResponse\n      };\n\n      return $http.get(tpl, httpOptions)\n        ['finally'](function() {\n          handleRequestFn.totalPendingRequests--;\n        })\n        .then(function(response) {\n          $templateCache.put(tpl, response.data);\n          return response.data;\n        }, handleError);\n\n      function handleError(resp) {\n        if (!ignoreRequestError) {\n          throw $compileMinErr('tpload', 'Failed to load template: {0} (HTTP status: {1} {2})',\n            tpl, resp.status, resp.statusText);\n        }\n        return $q.reject(resp);\n      }\n    }\n\n    handleRequestFn.totalPendingRequests = 0;\n\n    return handleRequestFn;\n  }];\n}\n\nfunction $$TestabilityProvider() {\n  this.$get = ['$rootScope', '$browser', '$location',\n       function($rootScope,   $browser,   $location) {\n\n    /**\n     * @name $testability\n     *\n     * @description\n     * The private $$testability service provides a collection of methods for use when debugging\n     * or by automated test and debugging tools.\n     */\n    var testability = {};\n\n    /**\n     * @name $$testability#findBindings\n     *\n     * @description\n     * Returns an array of elements that are bound (via ng-bind or {{}})\n     * to expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The binding expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression. Filters and whitespace are ignored.\n     */\n    testability.findBindings = function(element, expression, opt_exactMatch) {\n      var bindings = element.getElementsByClassName('ng-binding');\n      var matches = [];\n      forEach(bindings, function(binding) {\n        var dataBinding = angular.element(binding).data('$binding');\n        if (dataBinding) {\n          forEach(dataBinding, function(bindingName) {\n            if (opt_exactMatch) {\n              var matcher = new RegExp('(^|\\\\s)' + escapeForRegexp(expression) + '(\\\\s|\\\\||$)');\n              if (matcher.test(bindingName)) {\n                matches.push(binding);\n              }\n            } else {\n              if (bindingName.indexOf(expression) != -1) {\n                matches.push(binding);\n              }\n            }\n          });\n        }\n      });\n      return matches;\n    };\n\n    /**\n     * @name $$testability#findModels\n     *\n     * @description\n     * Returns an array of elements that are two-way found via ng-model to\n     * expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The model expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression.\n     */\n    testability.findModels = function(element, expression, opt_exactMatch) {\n      var prefixes = ['ng-', 'data-ng-', 'ng\\\\:'];\n      for (var p = 0; p < prefixes.length; ++p) {\n        var attributeEquals = opt_exactMatch ? '=' : '*=';\n        var selector = '[' + prefixes[p] + 'model' + attributeEquals + '\"' + expression + '\"]';\n        var elements = element.querySelectorAll(selector);\n        if (elements.length) {\n          return elements;\n        }\n      }\n    };\n\n    /**\n     * @name $$testability#getLocation\n     *\n     * @description\n     * Shortcut for getting the location in a browser agnostic way. Returns\n     *     the path, search, and hash. (e.g. /path?a=b#hash)\n     */\n    testability.getLocation = function() {\n      return $location.url();\n    };\n\n    /**\n     * @name $$testability#setLocation\n     *\n     * @description\n     * Shortcut for navigating to a location without doing a full page reload.\n     *\n     * @param {string} url The location url (path, search and hash,\n     *     e.g. /path?a=b#hash) to go to.\n     */\n    testability.setLocation = function(url) {\n      if (url !== $location.url()) {\n        $location.url(url);\n        $rootScope.$digest();\n      }\n    };\n\n    /**\n     * @name $$testability#whenStable\n     *\n     * @description\n     * Calls the callback when $timeout and $http requests are completed.\n     *\n     * @param {function} callback\n     */\n    testability.whenStable = function(callback) {\n      $browser.notifyWhenNoOutstandingRequests(callback);\n    };\n\n    return testability;\n  }];\n}\n\nfunction $TimeoutProvider() {\n  this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler',\n       function($rootScope,   $browser,   $q,   $$q,   $exceptionHandler) {\n\n    var deferreds = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $timeout\n      *\n      * @description\n      * Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch\n      * block and delegates any exceptions to\n      * {@link ng.$exceptionHandler $exceptionHandler} service.\n      *\n      * The return value of calling `$timeout` is a promise, which will be resolved when\n      * the delay has passed and the timeout function, if provided, is executed.\n      *\n      * To cancel a timeout request, call `$timeout.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to\n      * synchronously flush the queue of deferred functions.\n      *\n      * If you only want a promise that will be resolved after some specified delay\n      * then you can call `$timeout` without the `fn` function.\n      *\n      * @param {function()=} fn A function, whose execution should be delayed.\n      * @param {number=} [delay=0] Delay in milliseconds.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @param {...*=} Pass additional parameters to the executed function.\n      * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise\n      *   will be resolved with the return value of the `fn` function.\n      *\n      */\n    function timeout(fn, delay, invokeApply) {\n      if (!isFunction(fn)) {\n        invokeApply = delay;\n        delay = fn;\n        fn = noop;\n      }\n\n      var args = sliceArgs(arguments, 3),\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise,\n          timeoutId;\n\n      timeoutId = $browser.defer(function() {\n        try {\n          deferred.resolve(fn.apply(null, args));\n        } catch (e) {\n          deferred.reject(e);\n          $exceptionHandler(e);\n        }\n        finally {\n          delete deferreds[promise.$$timeoutId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }, delay);\n\n      promise.$$timeoutId = timeoutId;\n      deferreds[timeoutId] = deferred;\n\n      return promise;\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $timeout#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`. As a result of this, the promise will be\n      * resolved with a rejection.\n      *\n      * @param {Promise=} promise Promise returned by the `$timeout` function.\n      * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n      *   canceled.\n      */\n    timeout.cancel = function(promise) {\n      if (promise && promise.$$timeoutId in deferreds) {\n        deferreds[promise.$$timeoutId].reject('canceled');\n        delete deferreds[promise.$$timeoutId];\n        return $browser.defer.cancel(promise.$$timeoutId);\n      }\n      return false;\n    };\n\n    return timeout;\n  }];\n}\n\n// NOTE:  The usage of window and document instead of $window and $document here is\n// deliberate.  This service depends on the specific behavior of anchor nodes created by the\n// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and\n// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it\n// doesn't know about mocked locations and resolves URLs to the real document - which is\n// exactly the behavior needed here.  There is little value is mocking these out for this\n// service.\nvar urlParsingNode = document.createElement(\"a\");\nvar originUrl = urlResolve(window.location.href);\n\n\n/**\n *\n * Implementation Notes for non-IE browsers\n * ----------------------------------------\n * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,\n * results both in the normalizing and parsing of the URL.  Normalizing means that a relative\n * URL will be resolved into an absolute URL in the context of the application document.\n * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related\n * properties are all populated to reflect the normalized URL.  This approach has wide\n * compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc.  See\n * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *\n * Implementation Notes for IE\n * ---------------------------\n * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other\n * browsers.  However, the parsed components will not be set if the URL assigned did not specify\n * them.  (e.g. if you assign a.href = \"foo\", then a.protocol, a.host, etc. will be empty.)  We\n * work around that by performing the parsing in a 2nd step by taking a previously normalized\n * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the\n * properties such as protocol, hostname, port, etc.\n *\n * References:\n *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement\n *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *   http://url.spec.whatwg.org/#urlutils\n *   https://github.com/angular/angular.js/pull/2902\n *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/\n *\n * @kind function\n * @param {string} url The URL to be parsed.\n * @description Normalizes and parses a URL.\n * @returns {object} Returns the normalized URL as a dictionary.\n *\n *   | member name   | Description    |\n *   |---------------|----------------|\n *   | href          | A normalized version of the provided URL if it was not an absolute URL |\n *   | protocol      | The protocol including the trailing colon                              |\n *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |\n *   | search        | The search params, minus the question mark                             |\n *   | hash          | The hash string, minus the hash symbol\n *   | hostname      | The hostname\n *   | port          | The port, without \":\"\n *   | pathname      | The pathname, beginning with \"/\"\n *\n */\nfunction urlResolve(url) {\n  var href = url;\n\n  if (msie) {\n    // Normalize before parse.  Refer Implementation Notes on why this is\n    // done in two steps on IE.\n    urlParsingNode.setAttribute(\"href\", href);\n    href = urlParsingNode.href;\n  }\n\n  urlParsingNode.setAttribute('href', href);\n\n  // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n  return {\n    href: urlParsingNode.href,\n    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n    host: urlParsingNode.host,\n    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n    hostname: urlParsingNode.hostname,\n    port: urlParsingNode.port,\n    pathname: (urlParsingNode.pathname.charAt(0) === '/')\n      ? urlParsingNode.pathname\n      : '/' + urlParsingNode.pathname\n  };\n}\n\n/**\n * Parse a request URL and determine whether this is a same-origin request as the application document.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the request is for the same origin as the application document.\n */\nfunction urlIsSameOrigin(requestUrl) {\n  var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl;\n  return (parsed.protocol === originUrl.protocol &&\n          parsed.host === originUrl.host);\n}\n\n/**\n * @ngdoc service\n * @name $window\n *\n * @description\n * A reference to the browser's `window` object. While `window`\n * is globally available in JavaScript, it causes testability problems, because\n * it is a global variable. In angular we always refer to it through the\n * `$window` service, so it may be overridden, removed or mocked for testing.\n *\n * Expressions, like the one defined for the `ngClick` directive in the example\n * below, are evaluated with respect to the current scope.  Therefore, there is\n * no risk of inadvertently coding in a dependency on a global value in such an\n * expression.\n *\n * @example\n   <example module=\"windowExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('windowExample', [])\n           .controller('ExampleController', ['$scope', '$window', function($scope, $window) {\n             $scope.greeting = 'Hello, World!';\n             $scope.doGreeting = function(greeting) {\n               $window.alert(greeting);\n             };\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"text\" ng-model=\"greeting\" aria-label=\"greeting\" />\n         <button ng-click=\"doGreeting(greeting)\">ALERT</button>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n      it('should display the greeting in the input box', function() {\n       element(by.model('greeting')).sendKeys('Hello, E2E Tests');\n       // If we click the button it will block the test runner\n       // element(':button').click();\n      });\n     </file>\n   </example>\n */\nfunction $WindowProvider() {\n  this.$get = valueFn(window);\n}\n\n/**\n * @name $$cookieReader\n * @requires $document\n *\n * @description\n * This is a private service for reading cookies used by $http and ngCookies\n *\n * @return {Object} a key/value map of the current cookies\n */\nfunction $$CookieReader($document) {\n  var rawDocument = $document[0] || {};\n  var lastCookies = {};\n  var lastCookieString = '';\n\n  function safeDecodeURIComponent(str) {\n    try {\n      return decodeURIComponent(str);\n    } catch (e) {\n      return str;\n    }\n  }\n\n  return function() {\n    var cookieArray, cookie, i, index, name;\n    var currentCookieString = rawDocument.cookie || '';\n\n    if (currentCookieString !== lastCookieString) {\n      lastCookieString = currentCookieString;\n      cookieArray = lastCookieString.split('; ');\n      lastCookies = {};\n\n      for (i = 0; i < cookieArray.length; i++) {\n        cookie = cookieArray[i];\n        index = cookie.indexOf('=');\n        if (index > 0) { //ignore nameless cookies\n          name = safeDecodeURIComponent(cookie.substring(0, index));\n          // the first value that is seen for a cookie is the most\n          // specific one.  values for the same cookie name that\n          // follow are for less specific paths.\n          if (isUndefined(lastCookies[name])) {\n            lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1));\n          }\n        }\n      }\n    }\n    return lastCookies;\n  };\n}\n\n$$CookieReader.$inject = ['$document'];\n\nfunction $$CookieReaderProvider() {\n  this.$get = $$CookieReader;\n}\n\n/* global currencyFilter: true,\n dateFilter: true,\n filterFilter: true,\n jsonFilter: true,\n limitToFilter: true,\n lowercaseFilter: true,\n numberFilter: true,\n orderByFilter: true,\n uppercaseFilter: true,\n */\n\n/**\n * @ngdoc provider\n * @name $filterProvider\n * @description\n *\n * Filters are just functions which transform input to an output. However filters need to be\n * Dependency Injected. To achieve this a filter definition consists of a factory function which is\n * annotated with dependencies and is responsible for creating a filter function.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n * (`myapp_subsection_filterx`).\n * </div>\n *\n * ```js\n *   // Filter registration\n *   function MyModule($provide, $filterProvider) {\n *     // create a service to demonstrate injection (not always needed)\n *     $provide.value('greet', function(name){\n *       return 'Hello ' + name + '!';\n *     });\n *\n *     // register a filter factory which uses the\n *     // greet service to demonstrate DI.\n *     $filterProvider.register('greet', function(greet){\n *       // return the filter function which uses the greet service\n *       // to generate salutation\n *       return function(text) {\n *         // filters need to be forgiving so check input validity\n *         return text && greet(text) || text;\n *       };\n *     });\n *   }\n * ```\n *\n * The filter function is registered with the `$injector` under the filter name suffix with\n * `Filter`.\n *\n * ```js\n *   it('should be the same instance', inject(\n *     function($filterProvider) {\n *       $filterProvider.register('reverse', function(){\n *         return ...;\n *       });\n *     },\n *     function($filter, reverseFilter) {\n *       expect($filter('reverse')).toBe(reverseFilter);\n *     });\n * ```\n *\n *\n * For more information about how angular filters work, and how to create your own filters, see\n * {@link guide/filter Filters} in the Angular Developer Guide.\n */\n\n/**\n * @ngdoc service\n * @name $filter\n * @kind function\n * @description\n * Filters are used for formatting data displayed to the user.\n *\n * The general syntax in templates is as follows:\n *\n *         {{ expression [| filter_name[:parameter_value] ... ] }}\n *\n * @param {String} name Name of the filter function to retrieve\n * @return {Function} the filter function\n * @example\n   <example name=\"$filter\" module=\"filterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainCtrl\">\n        <h3>{{ originalText }}</h3>\n        <h3>{{ filteredText }}</h3>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n      angular.module('filterExample', [])\n      .controller('MainCtrl', function($scope, $filter) {\n        $scope.originalText = 'hello';\n        $scope.filteredText = $filter('uppercase')($scope.originalText);\n      });\n     </file>\n   </example>\n  */\n$FilterProvider.$inject = ['$provide'];\nfunction $FilterProvider($provide) {\n  var suffix = 'Filter';\n\n  /**\n   * @ngdoc method\n   * @name $filterProvider#register\n   * @param {string|Object} name Name of the filter function, or an object map of filters where\n   *    the keys are the filter names and the values are the filter factories.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n   *    Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n   *    your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n   *    (`myapp_subsection_filterx`).\n   *    </div>\n    * @param {Function} factory If the first argument was a string, a factory function for the filter to be registered.\n   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map\n   *    of the registered filter instances.\n   */\n  function register(name, factory) {\n    if (isObject(name)) {\n      var filters = {};\n      forEach(name, function(filter, key) {\n        filters[key] = register(key, filter);\n      });\n      return filters;\n    } else {\n      return $provide.factory(name + suffix, factory);\n    }\n  }\n  this.register = register;\n\n  this.$get = ['$injector', function($injector) {\n    return function(name) {\n      return $injector.get(name + suffix);\n    };\n  }];\n\n  ////////////////////////////////////////\n\n  /* global\n    currencyFilter: false,\n    dateFilter: false,\n    filterFilter: false,\n    jsonFilter: false,\n    limitToFilter: false,\n    lowercaseFilter: false,\n    numberFilter: false,\n    orderByFilter: false,\n    uppercaseFilter: false,\n  */\n\n  register('currency', currencyFilter);\n  register('date', dateFilter);\n  register('filter', filterFilter);\n  register('json', jsonFilter);\n  register('limitTo', limitToFilter);\n  register('lowercase', lowercaseFilter);\n  register('number', numberFilter);\n  register('orderBy', orderByFilter);\n  register('uppercase', uppercaseFilter);\n}\n\n/**\n * @ngdoc filter\n * @name filter\n * @kind function\n *\n * @description\n * Selects a subset of items from `array` and returns it as a new array.\n *\n * @param {Array} array The source array.\n * @param {string|Object|function()} expression The predicate to be used for selecting items from\n *   `array`.\n *\n *   Can be one of:\n *\n *   - `string`: The string is used for matching against the contents of the `array`. All strings or\n *     objects with string properties in `array` that match this string will be returned. This also\n *     applies to nested object properties.\n *     The predicate can be negated by prefixing the string with `!`.\n *\n *   - `Object`: A pattern object can be used to filter specific properties on objects contained\n *     by `array`. For example `{name:\"M\", phone:\"1\"}` predicate will return an array of items\n *     which have property `name` containing \"M\" and property `phone` containing \"1\". A special\n *     property name `$` can be used (as in `{$:\"text\"}`) to accept a match against any\n *     property of the object or its nested object properties. That's equivalent to the simple\n *     substring match with a `string` as described above. The predicate can be negated by prefixing\n *     the string with `!`.\n *     For example `{name: \"!M\"}` predicate will return an array of items which have property `name`\n *     not containing \"M\".\n *\n *     Note that a named property will match properties on the same level only, while the special\n *     `$` property will match properties on the same level or deeper. E.g. an array item like\n *     `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but\n *     **will** be matched by `{$: 'John'}`.\n *\n *   - `function(value, index, array)`: A predicate function can be used to write arbitrary filters.\n *     The function is called for each element of the array, with the element, its index, and\n *     the entire array itself as arguments.\n *\n *     The final result is an array of those elements that the predicate returned true for.\n *\n * @param {function(actual, expected)|true|undefined} comparator Comparator which is used in\n *     determining if the expected value (from the filter expression) and actual value (from\n *     the object in the array) should be considered a match.\n *\n *   Can be one of:\n *\n *   - `function(actual, expected)`:\n *     The function will be given the object value and the predicate value to compare and\n *     should return true if both values should be considered equal.\n *\n *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`.\n *     This is essentially strict comparison of expected and actual.\n *\n *   - `false|undefined`: A short hand for a function which will look for a substring match in case\n *     insensitive way.\n *\n *     Primitive values are converted to strings. Objects are not compared against primitives,\n *     unless they have a custom `toString` method (e.g. `Date` objects).\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <div ng-init=\"friends = [{name:'John', phone:'555-1276'},\n                                {name:'Mary', phone:'800-BIG-MARY'},\n                                {name:'Mike', phone:'555-4321'},\n                                {name:'Adam', phone:'555-5678'},\n                                {name:'Julie', phone:'555-8765'},\n                                {name:'Juliette', phone:'555-5678'}]\"></div>\n\n       <label>Search: <input ng-model=\"searchText\"></label>\n       <table id=\"searchTextResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friend in friends | filter:searchText\">\n           <td>{{friend.name}}</td>\n           <td>{{friend.phone}}</td>\n         </tr>\n       </table>\n       <hr>\n       <label>Any: <input ng-model=\"search.$\"></label> <br>\n       <label>Name only <input ng-model=\"search.name\"></label><br>\n       <label>Phone only <input ng-model=\"search.phone\"></label><br>\n       <label>Equality <input type=\"checkbox\" ng-model=\"strict\"></label><br>\n       <table id=\"searchObjResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friendObj in friends | filter:search:strict\">\n           <td>{{friendObj.name}}</td>\n           <td>{{friendObj.phone}}</td>\n         </tr>\n       </table>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var expectFriendNames = function(expectedNames, key) {\n         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {\n           arr.forEach(function(wd, i) {\n             expect(wd.getText()).toMatch(expectedNames[i]);\n           });\n         });\n       };\n\n       it('should search across all fields when filtering with a string', function() {\n         var searchText = element(by.model('searchText'));\n         searchText.clear();\n         searchText.sendKeys('m');\n         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');\n\n         searchText.clear();\n         searchText.sendKeys('76');\n         expectFriendNames(['John', 'Julie'], 'friend');\n       });\n\n       it('should search in specific fields when filtering with a predicate object', function() {\n         var searchAny = element(by.model('search.$'));\n         searchAny.clear();\n         searchAny.sendKeys('i');\n         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');\n       });\n       it('should use a equal comparison when comparator is true', function() {\n         var searchName = element(by.model('search.name'));\n         var strict = element(by.model('strict'));\n         searchName.clear();\n         searchName.sendKeys('Julie');\n         strict.click();\n         expectFriendNames(['Julie'], 'friendObj');\n       });\n     </file>\n   </example>\n */\nfunction filterFilter() {\n  return function(array, expression, comparator) {\n    if (!isArrayLike(array)) {\n      if (array == null) {\n        return array;\n      } else {\n        throw minErr('filter')('notarray', 'Expected array but received: {0}', array);\n      }\n    }\n\n    var expressionType = getTypeForFilter(expression);\n    var predicateFn;\n    var matchAgainstAnyProp;\n\n    switch (expressionType) {\n      case 'function':\n        predicateFn = expression;\n        break;\n      case 'boolean':\n      case 'null':\n      case 'number':\n      case 'string':\n        matchAgainstAnyProp = true;\n        //jshint -W086\n      case 'object':\n        //jshint +W086\n        predicateFn = createPredicateFn(expression, comparator, matchAgainstAnyProp);\n        break;\n      default:\n        return array;\n    }\n\n    return Array.prototype.filter.call(array, predicateFn);\n  };\n}\n\n// Helper functions for `filterFilter`\nfunction createPredicateFn(expression, comparator, matchAgainstAnyProp) {\n  var shouldMatchPrimitives = isObject(expression) && ('$' in expression);\n  var predicateFn;\n\n  if (comparator === true) {\n    comparator = equals;\n  } else if (!isFunction(comparator)) {\n    comparator = function(actual, expected) {\n      if (isUndefined(actual)) {\n        // No substring matching against `undefined`\n        return false;\n      }\n      if ((actual === null) || (expected === null)) {\n        // No substring matching against `null`; only match against `null`\n        return actual === expected;\n      }\n      if (isObject(expected) || (isObject(actual) && !hasCustomToString(actual))) {\n        // Should not compare primitives against objects, unless they have custom `toString` method\n        return false;\n      }\n\n      actual = lowercase('' + actual);\n      expected = lowercase('' + expected);\n      return actual.indexOf(expected) !== -1;\n    };\n  }\n\n  predicateFn = function(item) {\n    if (shouldMatchPrimitives && !isObject(item)) {\n      return deepCompare(item, expression.$, comparator, false);\n    }\n    return deepCompare(item, expression, comparator, matchAgainstAnyProp);\n  };\n\n  return predicateFn;\n}\n\nfunction deepCompare(actual, expected, comparator, matchAgainstAnyProp, dontMatchWholeObject) {\n  var actualType = getTypeForFilter(actual);\n  var expectedType = getTypeForFilter(expected);\n\n  if ((expectedType === 'string') && (expected.charAt(0) === '!')) {\n    return !deepCompare(actual, expected.substring(1), comparator, matchAgainstAnyProp);\n  } else if (isArray(actual)) {\n    // In case `actual` is an array, consider it a match\n    // if ANY of it's items matches `expected`\n    return actual.some(function(item) {\n      return deepCompare(item, expected, comparator, matchAgainstAnyProp);\n    });\n  }\n\n  switch (actualType) {\n    case 'object':\n      var key;\n      if (matchAgainstAnyProp) {\n        for (key in actual) {\n          if ((key.charAt(0) !== '$') && deepCompare(actual[key], expected, comparator, true)) {\n            return true;\n          }\n        }\n        return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, false);\n      } else if (expectedType === 'object') {\n        for (key in expected) {\n          var expectedVal = expected[key];\n          if (isFunction(expectedVal) || isUndefined(expectedVal)) {\n            continue;\n          }\n\n          var matchAnyProperty = key === '$';\n          var actualVal = matchAnyProperty ? actual : actual[key];\n          if (!deepCompare(actualVal, expectedVal, comparator, matchAnyProperty, matchAnyProperty)) {\n            return false;\n          }\n        }\n        return true;\n      } else {\n        return comparator(actual, expected);\n      }\n      break;\n    case 'function':\n      return false;\n    default:\n      return comparator(actual, expected);\n  }\n}\n\n// Used for easily differentiating between `null` and actual `object`\nfunction getTypeForFilter(val) {\n  return (val === null) ? 'null' : typeof val;\n}\n\nvar MAX_DIGITS = 22;\nvar DECIMAL_SEP = '.';\nvar ZERO_CHAR = '0';\n\n/**\n * @ngdoc filter\n * @name currency\n * @kind function\n *\n * @description\n * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default\n * symbol for current locale is used.\n *\n * @param {number} amount Input to filter.\n * @param {string=} symbol Currency symbol or identifier to be displayed.\n * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale\n * @returns {string} Formatted number.\n *\n *\n * @example\n   <example module=\"currencyExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('currencyExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.amount = 1234.56;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"number\" ng-model=\"amount\" aria-label=\"amount\"> <br>\n         default currency symbol ($): <span id=\"currency-default\">{{amount | currency}}</span><br>\n         custom currency identifier (USD$): <span id=\"currency-custom\">{{amount | currency:\"USD$\"}}</span>\n         no fractions (0): <span id=\"currency-no-fractions\">{{amount | currency:\"USD$\":0}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should init with 1234.56', function() {\n         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');\n         expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235');\n       });\n       it('should update', function() {\n         if (browser.params.browser == 'safari') {\n           // Safari does not understand the minus key. See\n           // https://github.com/angular/protractor/issues/481\n           return;\n         }\n         element(by.model('amount')).clear();\n         element(by.model('amount')).sendKeys('-1234');\n         expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00');\n         expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234');\n       });\n     </file>\n   </example>\n */\ncurrencyFilter.$inject = ['$locale'];\nfunction currencyFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(amount, currencySymbol, fractionSize) {\n    if (isUndefined(currencySymbol)) {\n      currencySymbol = formats.CURRENCY_SYM;\n    }\n\n    if (isUndefined(fractionSize)) {\n      fractionSize = formats.PATTERNS[1].maxFrac;\n    }\n\n    // if null or undefined pass it through\n    return (amount == null)\n        ? amount\n        : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize).\n            replace(/\\u00A4/g, currencySymbol);\n  };\n}\n\n/**\n * @ngdoc filter\n * @name number\n * @kind function\n *\n * @description\n * Formats a number as text.\n *\n * If the input is null or undefined, it will just be returned.\n * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively.\n * If the input is not a number an empty string is returned.\n *\n *\n * @param {number|string} number Number to format.\n * @param {(number|string)=} fractionSize Number of decimal places to round the number to.\n * If this is not provided then the fraction size is computed from the current locale's number\n * formatting pattern. In the case of the default locale, it will be 3.\n * @returns {string} Number rounded to `fractionSize` appropriately formatted based on the current\n *                   locale (e.g., in the en_US locale it will have \".\" as the decimal separator and\n *                   include \",\" group separators after each third digit).\n *\n * @example\n   <example module=\"numberFilterExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('numberFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.val = 1234.56789;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter number: <input ng-model='val'></label><br>\n         Default formatting: <span id='number-default'>{{val | number}}</span><br>\n         No fractions: <span>{{val | number:0}}</span><br>\n         Negative number: <span>{{-val | number:4}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format numbers', function() {\n         expect(element(by.id('number-default')).getText()).toBe('1,234.568');\n         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');\n       });\n\n       it('should update', function() {\n         element(by.model('val')).clear();\n         element(by.model('val')).sendKeys('3374.333');\n         expect(element(by.id('number-default')).getText()).toBe('3,374.333');\n         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');\n      });\n     </file>\n   </example>\n */\nnumberFilter.$inject = ['$locale'];\nfunction numberFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(number, fractionSize) {\n\n    // if null or undefined pass it through\n    return (number == null)\n        ? number\n        : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,\n                       fractionSize);\n  };\n}\n\n/**\n * Parse a number (as a string) into three components that can be used\n * for formatting the number.\n *\n * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/)\n *\n * @param  {string} numStr The number to parse\n * @return {object} An object describing this number, containing the following keys:\n *  - d : an array of digits containing leading zeros as necessary\n *  - i : the number of the digits in `d` that are to the left of the decimal point\n *  - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d`\n *\n */\nfunction parse(numStr) {\n  var exponent = 0, digits, numberOfIntegerDigits;\n  var i, j, zeros;\n\n  // Decimal point?\n  if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) {\n    numStr = numStr.replace(DECIMAL_SEP, '');\n  }\n\n  // Exponential form?\n  if ((i = numStr.search(/e/i)) > 0) {\n    // Work out the exponent.\n    if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i;\n    numberOfIntegerDigits += +numStr.slice(i + 1);\n    numStr = numStr.substring(0, i);\n  } else if (numberOfIntegerDigits < 0) {\n    // There was no decimal point or exponent so it is an integer.\n    numberOfIntegerDigits = numStr.length;\n  }\n\n  // Count the number of leading zeros.\n  for (i = 0; numStr.charAt(i) == ZERO_CHAR; i++) {/* jshint noempty: false */}\n\n  if (i == (zeros = numStr.length)) {\n    // The digits are all zero.\n    digits = [0];\n    numberOfIntegerDigits = 1;\n  } else {\n    // Count the number of trailing zeros\n    zeros--;\n    while (numStr.charAt(zeros) == ZERO_CHAR) zeros--;\n\n    // Trailing zeros are insignificant so ignore them\n    numberOfIntegerDigits -= i;\n    digits = [];\n    // Convert string to array of digits without leading/trailing zeros.\n    for (j = 0; i <= zeros; i++, j++) {\n      digits[j] = +numStr.charAt(i);\n    }\n  }\n\n  // If the number overflows the maximum allowed digits then use an exponent.\n  if (numberOfIntegerDigits > MAX_DIGITS) {\n    digits = digits.splice(0, MAX_DIGITS - 1);\n    exponent = numberOfIntegerDigits - 1;\n    numberOfIntegerDigits = 1;\n  }\n\n  return { d: digits, e: exponent, i: numberOfIntegerDigits };\n}\n\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changed the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) {\n    var digits = parsedNumber.d;\n    var fractionLen = digits.length - parsedNumber.i;\n\n    // determine fractionSize if it is not specified; `+fractionSize` converts it to a number\n    fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize;\n\n    // The index of the digit to where rounding is to occur\n    var roundAt = fractionSize + parsedNumber.i;\n    var digit = digits[roundAt];\n\n    if (roundAt > 0) {\n      digits.splice(roundAt);\n    } else {\n      // We rounded to zero so reset the parsedNumber\n      parsedNumber.i = 1;\n      digits.length = roundAt = fractionSize + 1;\n      for (var i=0; i < roundAt; i++) digits[i] = 0;\n    }\n\n    if (digit >= 5) digits[roundAt - 1]++;\n\n    // Pad out with zeros to get the required fraction length\n    for (; fractionLen < fractionSize; fractionLen++) digits.push(0);\n\n\n    // Do any carrying, e.g. a digit was rounded up to 10\n    var carry = digits.reduceRight(function(carry, d, i, digits) {\n      d = d + carry;\n      digits[i] = d % 10;\n      return Math.floor(d / 10);\n    }, 0);\n    if (carry) {\n      digits.unshift(carry);\n      parsedNumber.i++;\n    }\n}\n\n/**\n * Format a number into a string\n * @param  {number} number       The number to format\n * @param  {{\n *           minFrac, // the minimum number of digits required in the fraction part of the number\n *           maxFrac, // the maximum number of digits required in the fraction part of the number\n *           gSize,   // number of digits in each group of separated digits\n *           lgSize,  // number of digits in the last group of digits before the decimal separator\n *           negPre,  // the string to go in front of a negative number (e.g. `-` or `(`))\n *           posPre,  // the string to go in front of a positive number\n *           negSuf,  // the string to go after a negative number (e.g. `)`)\n *           posSuf   // the string to go after a positive number\n *         }} pattern\n * @param  {string} groupSep     The string to separate groups of number (e.g. `,`)\n * @param  {string} decimalSep   The string to act as the decimal separator (e.g. `.`)\n * @param  {[type]} fractionSize The size of the fractional part of the number\n * @return {string}              The number formatted as a string\n */\nfunction formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {\n\n  if (!(isString(number) || isNumber(number)) || isNaN(number)) return '';\n\n  var isInfinity = !isFinite(number);\n  var isZero = false;\n  var numStr = Math.abs(number) + '',\n      formattedText = '',\n      parsedNumber;\n\n  if (isInfinity) {\n    formattedText = '\\u221e';\n  } else {\n    parsedNumber = parse(numStr);\n\n    roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac);\n\n    var digits = parsedNumber.d;\n    var integerLen = parsedNumber.i;\n    var exponent = parsedNumber.e;\n    var decimals = [];\n    isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true);\n\n    // pad zeros for small numbers\n    while (integerLen < 0) {\n      digits.unshift(0);\n      integerLen++;\n    }\n\n    // extract decimals digits\n    if (integerLen > 0) {\n      decimals = digits.splice(integerLen, digits.length);\n    } else {\n      decimals = digits;\n      digits = [0];\n    }\n\n    // format the integer digits with grouping separators\n    var groups = [];\n    if (digits.length >= pattern.lgSize) {\n      groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n    }\n    while (digits.length > pattern.gSize) {\n      groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n    }\n    if (digits.length) {\n      groups.unshift(digits.join(''));\n    }\n    formattedText = groups.join(groupSep);\n\n    // append the decimal digits\n    if (decimals.length) {\n      formattedText += decimalSep + decimals.join('');\n    }\n\n    if (exponent) {\n      formattedText += 'e+' + exponent;\n    }\n  }\n  if (number < 0 && !isZero) {\n    return pattern.negPre + formattedText + pattern.negSuf;\n  } else {\n    return pattern.posPre + formattedText + pattern.posSuf;\n  }\n}\n\nfunction padNumber(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while (num.length < digits) num = ZERO_CHAR + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\nfunction dateGetter(name, size, offset, trim) {\n  offset = offset || 0;\n  return function(date) {\n    var value = date['get' + name]();\n    if (offset > 0 || value > -offset) {\n      value += offset;\n    }\n    if (value === 0 && offset == -12) value = 12;\n    return padNumber(value, size, trim);\n  };\n}\n\nfunction dateStrGetter(name, shortForm) {\n  return function(date, formats) {\n    var value = date['get' + name]();\n    var get = uppercase(shortForm ? ('SHORT' + name) : name);\n\n    return formats[get][value];\n  };\n}\n\nfunction timeZoneGetter(date, formats, offset) {\n  var zone = -1 * offset;\n  var paddedZone = (zone >= 0) ? \"+\" : \"\";\n\n  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +\n                padNumber(Math.abs(zone % 60), 2);\n\n  return paddedZone;\n}\n\nfunction getFirstThursdayOfYear(year) {\n    // 0 = index of January\n    var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay();\n    // 4 = index of Thursday (+1 to account for 1st = 5)\n    // 11 = index of *next* Thursday (+1 account for 1st = 12)\n    return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst);\n}\n\nfunction getThursdayThisWeek(datetime) {\n    return new Date(datetime.getFullYear(), datetime.getMonth(),\n      // 4 = index of Thursday\n      datetime.getDate() + (4 - datetime.getDay()));\n}\n\nfunction weekGetter(size) {\n   return function(date) {\n      var firstThurs = getFirstThursdayOfYear(date.getFullYear()),\n         thisThurs = getThursdayThisWeek(date);\n\n      var diff = +thisThurs - +firstThurs,\n         result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n\n      return padNumber(result, size);\n   };\n}\n\nfunction ampmGetter(date, formats) {\n  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];\n}\n\nfunction eraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1];\n}\n\nfunction longEraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1];\n}\n\nvar DATE_FORMATS = {\n  yyyy: dateGetter('FullYear', 4),\n    yy: dateGetter('FullYear', 2, 0, true),\n     y: dateGetter('FullYear', 1),\n  MMMM: dateStrGetter('Month'),\n   MMM: dateStrGetter('Month', true),\n    MM: dateGetter('Month', 2, 1),\n     M: dateGetter('Month', 1, 1),\n    dd: dateGetter('Date', 2),\n     d: dateGetter('Date', 1),\n    HH: dateGetter('Hours', 2),\n     H: dateGetter('Hours', 1),\n    hh: dateGetter('Hours', 2, -12),\n     h: dateGetter('Hours', 1, -12),\n    mm: dateGetter('Minutes', 2),\n     m: dateGetter('Minutes', 1),\n    ss: dateGetter('Seconds', 2),\n     s: dateGetter('Seconds', 1),\n     // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions\n   sss: dateGetter('Milliseconds', 3),\n  EEEE: dateStrGetter('Day'),\n   EEE: dateStrGetter('Day', true),\n     a: ampmGetter,\n     Z: timeZoneGetter,\n    ww: weekGetter(2),\n     w: weekGetter(1),\n     G: eraGetter,\n     GG: eraGetter,\n     GGG: eraGetter,\n     GGGG: longEraGetter\n};\n\nvar DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z|G+|w+))(.*)/,\n    NUMBER_STRING = /^\\-?\\d+$/;\n\n/**\n * @ngdoc filter\n * @name date\n * @kind function\n *\n * @description\n *   Formats `date` to a string based on the requested `format`.\n *\n *   `format` string can be composed of the following elements:\n *\n *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)\n *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)\n *   * `'MMMM'`: Month in year (January-December)\n *   * `'MMM'`: Month in year (Jan-Dec)\n *   * `'MM'`: Month in year, padded (01-12)\n *   * `'M'`: Month in year (1-12)\n *   * `'dd'`: Day in month, padded (01-31)\n *   * `'d'`: Day in month (1-31)\n *   * `'EEEE'`: Day in Week,(Sunday-Saturday)\n *   * `'EEE'`: Day in Week, (Sun-Sat)\n *   * `'HH'`: Hour in day, padded (00-23)\n *   * `'H'`: Hour in day (0-23)\n *   * `'hh'`: Hour in AM/PM, padded (01-12)\n *   * `'h'`: Hour in AM/PM, (1-12)\n *   * `'mm'`: Minute in hour, padded (00-59)\n *   * `'m'`: Minute in hour (0-59)\n *   * `'ss'`: Second in minute, padded (00-59)\n *   * `'s'`: Second in minute (0-59)\n *   * `'sss'`: Millisecond in second, padded (000-999)\n *   * `'a'`: AM/PM marker\n *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)\n *   * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year\n *   * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year\n *   * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD')\n *   * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini')\n *\n *   `format` string can also be one of the following predefined\n *   {@link guide/i18n localizable formats}:\n *\n *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale\n *     (e.g. Sep 3, 2010 12:05:08 PM)\n *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)\n *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale\n *     (e.g. Friday, September 3, 2010)\n *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)\n *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)\n *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)\n *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)\n *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)\n *\n *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.\n *   `\"h 'in the morning'\"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence\n *   (e.g. `\"h 'o''clock'\"`).\n *\n * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or\n *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its\n *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is\n *    specified in the string input, the time is considered to be in the local timezone.\n * @param {string=} format Formatting rules (see Description). If not specified,\n *    `mediumDate` is used.\n * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the\n *    continental US time zone abbreviations, but for general use, use a time zone offset, for\n *    example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *    If not specified, the timezone of the browser will be used.\n * @returns {string} Formatted string or the input if input is not recognized as date/millis.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:\n           <span>{{1288323623006 | date:'medium'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:\n          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:\n          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:\"MM/dd/yyyy 'at' h:mma\"}}</span>:\n          <span>{{'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"}}</span><br>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format date', function() {\n         expect(element(by.binding(\"1288323623006 | date:'medium'\")).getText()).\n            toMatch(/Oct 2\\d, 2010 \\d{1,2}:\\d{2}:\\d{2} (AM|PM)/);\n         expect(element(by.binding(\"1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'\")).getText()).\n            toMatch(/2010\\-10\\-2\\d \\d{2}:\\d{2}:\\d{2} (\\-|\\+)?\\d{4}/);\n         expect(element(by.binding(\"'1288323623006' | date:'MM/dd/yyyy @ h:mma'\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 @ \\d{1,2}:\\d{2}(AM|PM)/);\n         expect(element(by.binding(\"'1288323623006' | date:\\\"MM/dd/yyyy 'at' h:mma\\\"\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 at \\d{1,2}:\\d{2}(AM|PM)/);\n       });\n     </file>\n   </example>\n */\ndateFilter.$inject = ['$locale'];\nfunction dateFilter($locale) {\n\n\n  var R_ISO8601_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n                     // 1        2       3         4          5          6          7          8  9     10      11\n  function jsonStringToDate(string) {\n    var match;\n    if (match = string.match(R_ISO8601_STR)) {\n      var date = new Date(0),\n          tzHour = 0,\n          tzMin  = 0,\n          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,\n          timeSetter = match[8] ? date.setUTCHours : date.setHours;\n\n      if (match[9]) {\n        tzHour = toInt(match[9] + match[10]);\n        tzMin = toInt(match[9] + match[11]);\n      }\n      dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n      var h = toInt(match[4] || 0) - tzHour;\n      var m = toInt(match[5] || 0) - tzMin;\n      var s = toInt(match[6] || 0);\n      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n      timeSetter.call(date, h, m, s, ms);\n      return date;\n    }\n    return string;\n  }\n\n\n  return function(date, format, timezone) {\n    var text = '',\n        parts = [],\n        fn, match;\n\n    format = format || 'mediumDate';\n    format = $locale.DATETIME_FORMATS[format] || format;\n    if (isString(date)) {\n      date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date);\n    }\n\n    if (isNumber(date)) {\n      date = new Date(date);\n    }\n\n    if (!isDate(date) || !isFinite(date.getTime())) {\n      return date;\n    }\n\n    while (format) {\n      match = DATE_FORMATS_SPLIT.exec(format);\n      if (match) {\n        parts = concat(parts, match, 1);\n        format = parts.pop();\n      } else {\n        parts.push(format);\n        format = null;\n      }\n    }\n\n    var dateTimezoneOffset = date.getTimezoneOffset();\n    if (timezone) {\n      dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n      date = convertTimezoneToLocal(date, timezone, true);\n    }\n    forEach(parts, function(value) {\n      fn = DATE_FORMATS[value];\n      text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset)\n                 : value === \"''\" ? \"'\" : value.replace(/(^'|'$)/g, '').replace(/''/g, \"'\");\n    });\n\n    return text;\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name json\n * @kind function\n *\n * @description\n *   Allows you to convert a JavaScript object into JSON string.\n *\n *   This filter is mostly useful for debugging. When using the double curly {{value}} notation\n *   the binding is automatically converted to JSON.\n *\n * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.\n * @param {number=} spacing The number of spaces to use per indentation, defaults to 2.\n * @returns {string} JSON string.\n *\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <pre id=\"default-spacing\">{{ {'name':'value'} | json }}</pre>\n       <pre id=\"custom-spacing\">{{ {'name':'value'} | json:4 }}</pre>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should jsonify filtered objects', function() {\n         expect(element(by.id('default-spacing')).getText()).toMatch(/\\{\\n  \"name\": ?\"value\"\\n}/);\n         expect(element(by.id('custom-spacing')).getText()).toMatch(/\\{\\n    \"name\": ?\"value\"\\n}/);\n       });\n     </file>\n   </example>\n *\n */\nfunction jsonFilter() {\n  return function(object, spacing) {\n    if (isUndefined(spacing)) {\n        spacing = 2;\n    }\n    return toJson(object, spacing);\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name lowercase\n * @kind function\n * @description\n * Converts string to lowercase.\n * @see angular.lowercase\n */\nvar lowercaseFilter = valueFn(lowercase);\n\n\n/**\n * @ngdoc filter\n * @name uppercase\n * @kind function\n * @description\n * Converts string to uppercase.\n * @see angular.uppercase\n */\nvar uppercaseFilter = valueFn(uppercase);\n\n/**\n * @ngdoc filter\n * @name limitTo\n * @kind function\n *\n * @description\n * Creates a new array or string containing only a specified number of elements. The elements\n * are taken from either the beginning or the end of the source array, string or number, as specified by\n * the value and sign (positive or negative) of `limit`. If a number is used as input, it is\n * converted to a string.\n *\n * @param {Array|string|number} input Source array, string or number to be limited.\n * @param {string|number} limit The length of the returned array or string. If the `limit` number\n *     is positive, `limit` number of items from the beginning of the source array/string are copied.\n *     If the number is negative, `limit` number  of items from the end of the source array/string\n *     are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined,\n *     the input will be returned unchanged.\n * @param {(string|number)=} begin Index at which to begin limitation. As a negative index, `begin`\n *     indicates an offset from the end of `input`. Defaults to `0`.\n * @returns {Array|string} A new sub-array or substring of length `limit` or less if input array\n *     had less than `limit` elements.\n *\n * @example\n   <example module=\"limitToExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('limitToExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.numbers = [1,2,3,4,5,6,7,8,9];\n             $scope.letters = \"abcdefghi\";\n             $scope.longNumber = 2345432342;\n             $scope.numLimit = 3;\n             $scope.letterLimit = 3;\n             $scope.longNumberLimit = 3;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>\n            Limit {{numbers}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"numLimit\">\n         </label>\n         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>\n         <label>\n            Limit {{letters}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"letterLimit\">\n         </label>\n         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>\n         <label>\n            Limit {{longNumber}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"longNumberLimit\">\n         </label>\n         <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var numLimitInput = element(by.model('numLimit'));\n       var letterLimitInput = element(by.model('letterLimit'));\n       var longNumberLimitInput = element(by.model('longNumberLimit'));\n       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));\n       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));\n       var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));\n\n       it('should limit the number array to first three items', function() {\n         expect(numLimitInput.getAttribute('value')).toBe('3');\n         expect(letterLimitInput.getAttribute('value')).toBe('3');\n         expect(longNumberLimitInput.getAttribute('value')).toBe('3');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abc');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 234');\n       });\n\n       // There is a bug in safari and protractor that doesn't like the minus key\n       // it('should update the output when -3 is entered', function() {\n       //   numLimitInput.clear();\n       //   numLimitInput.sendKeys('-3');\n       //   letterLimitInput.clear();\n       //   letterLimitInput.sendKeys('-3');\n       //   longNumberLimitInput.clear();\n       //   longNumberLimitInput.sendKeys('-3');\n       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');\n       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');\n       //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');\n       // });\n\n       it('should not exceed the maximum size of input array', function() {\n         numLimitInput.clear();\n         numLimitInput.sendKeys('100');\n         letterLimitInput.clear();\n         letterLimitInput.sendKeys('100');\n         longNumberLimitInput.clear();\n         longNumberLimitInput.sendKeys('100');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');\n       });\n     </file>\n   </example>\n*/\nfunction limitToFilter() {\n  return function(input, limit, begin) {\n    if (Math.abs(Number(limit)) === Infinity) {\n      limit = Number(limit);\n    } else {\n      limit = toInt(limit);\n    }\n    if (isNaN(limit)) return input;\n\n    if (isNumber(input)) input = input.toString();\n    if (!isArray(input) && !isString(input)) return input;\n\n    begin = (!begin || isNaN(begin)) ? 0 : toInt(begin);\n    begin = (begin < 0) ? Math.max(0, input.length + begin) : begin;\n\n    if (limit >= 0) {\n      return input.slice(begin, begin + limit);\n    } else {\n      if (begin === 0) {\n        return input.slice(limit, input.length);\n      } else {\n        return input.slice(Math.max(0, begin + limit), begin);\n      }\n    }\n  };\n}\n\n/**\n * @ngdoc filter\n * @name orderBy\n * @kind function\n *\n * @description\n * Orders a specified `array` by the `expression` predicate. It is ordered alphabetically\n * for strings and numerically for numbers. Note: if you notice numbers are not being sorted\n * as expected, make sure they are actually being saved as numbers and not strings.\n *\n * @param {Array} array The array to sort.\n * @param {function(*)|string|Array.<(function(*)|string)>=} expression A predicate to be\n *    used by the comparator to determine the order of elements.\n *\n *    Can be one of:\n *\n *    - `function`: Getter function. The result of this function will be sorted using the\n *      `<`, `===`, `>` operator.\n *    - `string`: An Angular expression. The result of this expression is used to compare elements\n *      (for example `name` to sort by a property called `name` or `name.substr(0, 3)` to sort by\n *      3 first characters of a property called `name`). The result of a constant expression\n *      is interpreted as a property name to be used in comparisons (for example `\"special name\"`\n *      to sort object by the value of their `special name` property). An expression can be\n *      optionally prefixed with `+` or `-` to control ascending or descending sort order\n *      (for example, `+name` or `-name`). If no property is provided, (e.g. `'+'`) then the array\n *      element itself is used to compare where sorting.\n *    - `Array`: An array of function or string predicates. The first predicate in the array\n *      is used for sorting, but when two items are equivalent, the next predicate is used.\n *\n *    If the predicate is missing or empty then it defaults to `'+'`.\n *\n * @param {boolean=} reverse Reverse the order of the array.\n * @returns {Array} Sorted copy of the source array.\n *\n *\n * @example\n * The example below demonstrates a simple ngRepeat, where the data is sorted\n * by age in descending order (predicate is set to `'-age'`).\n * `reverse` is not set, which means it defaults to `false`.\n   <example module=\"orderByExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <table class=\"friend\">\n           <tr>\n             <th>Name</th>\n             <th>Phone Number</th>\n             <th>Age</th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:'-age'\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends =\n               [{name:'John', phone:'555-1212', age:10},\n                {name:'Mary', phone:'555-9876', age:19},\n                {name:'Mike', phone:'555-4321', age:21},\n                {name:'Adam', phone:'555-5678', age:35},\n                {name:'Julie', phone:'555-8765', age:29}];\n         }]);\n     </file>\n   </example>\n *\n * The predicate and reverse parameters can be controlled dynamically through scope properties,\n * as shown in the next example.\n * @example\n   <example module=\"orderByExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sorting predicate = {{predicate}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"predicate=''\">Set to unsorted</button>\n         <table class=\"friend\">\n           <tr>\n            <th>\n                <button ng-click=\"order('name')\">Name</button>\n                <span class=\"sortorder\" ng-show=\"predicate === 'name'\" ng-class=\"{reverse:reverse}\"></span>\n            </th>\n            <th>\n                <button ng-click=\"order('phone')\">Phone Number</button>\n                <span class=\"sortorder\" ng-show=\"predicate === 'phone'\" ng-class=\"{reverse:reverse}\"></span>\n            </th>\n            <th>\n                <button ng-click=\"order('age')\">Age</button>\n                <span class=\"sortorder\" ng-show=\"predicate === 'age'\" ng-class=\"{reverse:reverse}\"></span>\n            </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:predicate:reverse\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends =\n               [{name:'John', phone:'555-1212', age:10},\n                {name:'Mary', phone:'555-9876', age:19},\n                {name:'Mike', phone:'555-4321', age:21},\n                {name:'Adam', phone:'555-5678', age:35},\n                {name:'Julie', phone:'555-8765', age:29}];\n           $scope.predicate = 'age';\n           $scope.reverse = true;\n           $scope.order = function(predicate) {\n             $scope.reverse = ($scope.predicate === predicate) ? !$scope.reverse : false;\n             $scope.predicate = predicate;\n           };\n         }]);\n      </file>\n     <file name=\"style.css\">\n       .sortorder:after {\n         content: '\\25b2';\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';\n       }\n     </file>\n   </example>\n *\n * It's also possible to call the orderBy filter manually, by injecting `$filter`, retrieving the\n * filter routine with `$filter('orderBy')`, and calling the returned filter routine with the\n * desired parameters.\n *\n * Example:\n *\n * @example\n  <example module=\"orderByExample\">\n    <file name=\"index.html\">\n    <div ng-controller=\"ExampleController\">\n      <pre>Sorting predicate = {{predicate}}; reverse = {{reverse}}</pre>\n      <table class=\"friend\">\n        <tr>\n          <th>\n              <button ng-click=\"order('name')\">Name</button>\n              <span class=\"sortorder\" ng-show=\"predicate === 'name'\" ng-class=\"{reverse:reverse}\"></span>\n          </th>\n          <th>\n              <button ng-click=\"order('phone')\">Phone Number</button>\n              <span class=\"sortorder\" ng-show=\"predicate === 'phone'\" ng-class=\"{reverse:reverse}\"></span>\n          </th>\n          <th>\n              <button ng-click=\"order('age')\">Age</button>\n              <span class=\"sortorder\" ng-show=\"predicate === 'age'\" ng-class=\"{reverse:reverse}\"></span>\n          </th>\n        </tr>\n        <tr ng-repeat=\"friend in friends\">\n          <td>{{friend.name}}</td>\n          <td>{{friend.phone}}</td>\n          <td>{{friend.age}}</td>\n        </tr>\n      </table>\n    </div>\n    </file>\n\n    <file name=\"script.js\">\n      angular.module('orderByExample', [])\n        .controller('ExampleController', ['$scope', '$filter', function($scope, $filter) {\n          var orderBy = $filter('orderBy');\n          $scope.friends = [\n            { name: 'John',    phone: '555-1212',    age: 10 },\n            { name: 'Mary',    phone: '555-9876',    age: 19 },\n            { name: 'Mike',    phone: '555-4321',    age: 21 },\n            { name: 'Adam',    phone: '555-5678',    age: 35 },\n            { name: 'Julie',   phone: '555-8765',    age: 29 }\n          ];\n          $scope.order = function(predicate) {\n            $scope.predicate = predicate;\n            $scope.reverse = ($scope.predicate === predicate) ? !$scope.reverse : false;\n            $scope.friends = orderBy($scope.friends, predicate, $scope.reverse);\n          };\n          $scope.order('age', true);\n        }]);\n    </file>\n\n    <file name=\"style.css\">\n       .sortorder:after {\n         content: '\\25b2';\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';\n       }\n    </file>\n</example>\n */\norderByFilter.$inject = ['$parse'];\nfunction orderByFilter($parse) {\n  return function(array, sortPredicate, reverseOrder) {\n\n    if (!(isArrayLike(array))) return array;\n\n    if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; }\n    if (sortPredicate.length === 0) { sortPredicate = ['+']; }\n\n    var predicates = processPredicates(sortPredicate, reverseOrder);\n    // Add a predicate at the end that evaluates to the element index. This makes the\n    // sort stable as it works as a tie-breaker when all the input predicates cannot\n    // distinguish between two elements.\n    predicates.push({ get: function() { return {}; }, descending: reverseOrder ? -1 : 1});\n\n    // The next three lines are a version of a Swartzian Transform idiom from Perl\n    // (sometimes called the Decorate-Sort-Undecorate idiom)\n    // See https://en.wikipedia.org/wiki/Schwartzian_transform\n    var compareValues = Array.prototype.map.call(array, getComparisonObject);\n    compareValues.sort(doComparison);\n    array = compareValues.map(function(item) { return item.value; });\n\n    return array;\n\n    function getComparisonObject(value, index) {\n      return {\n        value: value,\n        predicateValues: predicates.map(function(predicate) {\n          return getPredicateValue(predicate.get(value), index);\n        })\n      };\n    }\n\n    function doComparison(v1, v2) {\n      var result = 0;\n      for (var index=0, length = predicates.length; index < length; ++index) {\n        result = compare(v1.predicateValues[index], v2.predicateValues[index]) * predicates[index].descending;\n        if (result) break;\n      }\n      return result;\n    }\n  };\n\n  function processPredicates(sortPredicate, reverseOrder) {\n    reverseOrder = reverseOrder ? -1 : 1;\n    return sortPredicate.map(function(predicate) {\n      var descending = 1, get = identity;\n\n      if (isFunction(predicate)) {\n        get = predicate;\n      } else if (isString(predicate)) {\n        if ((predicate.charAt(0) == '+' || predicate.charAt(0) == '-')) {\n          descending = predicate.charAt(0) == '-' ? -1 : 1;\n          predicate = predicate.substring(1);\n        }\n        if (predicate !== '') {\n          get = $parse(predicate);\n          if (get.constant) {\n            var key = get();\n            get = function(value) { return value[key]; };\n          }\n        }\n      }\n      return { get: get, descending: descending * reverseOrder };\n    });\n  }\n\n  function isPrimitive(value) {\n    switch (typeof value) {\n      case 'number': /* falls through */\n      case 'boolean': /* falls through */\n      case 'string':\n        return true;\n      default:\n        return false;\n    }\n  }\n\n  function objectValue(value, index) {\n    // If `valueOf` is a valid function use that\n    if (typeof value.valueOf === 'function') {\n      value = value.valueOf();\n      if (isPrimitive(value)) return value;\n    }\n    // If `toString` is a valid function and not the one from `Object.prototype` use that\n    if (hasCustomToString(value)) {\n      value = value.toString();\n      if (isPrimitive(value)) return value;\n    }\n    // We have a basic object so we use the position of the object in the collection\n    return index;\n  }\n\n  function getPredicateValue(value, index) {\n    var type = typeof value;\n    if (value === null) {\n      type = 'string';\n      value = 'null';\n    } else if (type === 'string') {\n      value = value.toLowerCase();\n    } else if (type === 'object') {\n      value = objectValue(value, index);\n    }\n    return { value: value, type: type };\n  }\n\n  function compare(v1, v2) {\n    var result = 0;\n    if (v1.type === v2.type) {\n      if (v1.value !== v2.value) {\n        result = v1.value < v2.value ? -1 : 1;\n      }\n    } else {\n      result = v1.type < v2.type ? -1 : 1;\n    }\n    return result;\n  }\n}\n\nfunction ngDirective(directive) {\n  if (isFunction(directive)) {\n    directive = {\n      link: directive\n    };\n  }\n  directive.restrict = directive.restrict || 'AC';\n  return valueFn(directive);\n}\n\n/**\n * @ngdoc directive\n * @name a\n * @restrict E\n *\n * @description\n * Modifies the default behavior of the html A tag so that the default action is prevented when\n * the href attribute is empty.\n *\n * This change permits the easy creation of action links with the `ngClick` directive\n * without changing the location or causing page reloads, e.g.:\n * `<a href=\"\" ng-click=\"list.addItem()\">Add Item</a>`\n */\nvar htmlAnchorDirective = valueFn({\n  restrict: 'E',\n  compile: function(element, attr) {\n    if (!attr.href && !attr.xlinkHref) {\n      return function(scope, element) {\n        // If the linked element is not an anchor tag anymore, do nothing\n        if (element[0].nodeName.toLowerCase() !== 'a') return;\n\n        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?\n                   'xlink:href' : 'href';\n        element.on('click', function(event) {\n          // if we have no href url, then don't navigate anywhere.\n          if (!element.attr(href)) {\n            event.preventDefault();\n          }\n        });\n      };\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngHref\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in an href attribute will\n * make the link go to the wrong URL if the user clicks it before\n * Angular has a chance to replace the `{{hash}}` markup with its\n * value. Until Angular replaces the markup the link will be broken\n * and will most likely return a 404 error. The `ngHref` directive\n * solves this problem.\n *\n * The wrong way to write it:\n * ```html\n * <a href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <a ng-href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * @element A\n * @param {template} ngHref any string which can contain `{{}}` markup.\n *\n * @example\n * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes\n * in links and their different behaviors:\n    <example>\n      <file name=\"index.html\">\n        <input ng-model=\"value\" /><br />\n        <a id=\"link-1\" href ng-click=\"value = 1\">link 1</a> (link, don't reload)<br />\n        <a id=\"link-2\" href=\"\" ng-click=\"value = 2\">link 2</a> (link, don't reload)<br />\n        <a id=\"link-3\" ng-href=\"/{{'123'}}\">link 3</a> (link, reload!)<br />\n        <a id=\"link-4\" href=\"\" name=\"xx\" ng-click=\"value = 4\">anchor</a> (link, don't reload)<br />\n        <a id=\"link-5\" name=\"xxx\" ng-click=\"value = 5\">anchor</a> (no link)<br />\n        <a id=\"link-6\" ng-href=\"{{value}}\">link</a> (link, change location)\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should execute ng-click but not reload when href without value', function() {\n          element(by.id('link-1')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('1');\n          expect(element(by.id('link-1')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when href empty string', function() {\n          element(by.id('link-2')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('2');\n          expect(element(by.id('link-2')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click and change url when ng-href specified', function() {\n          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\\/123$/);\n\n          element(by.id('link-3')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/123$/);\n            });\n          }, 5000, 'page should navigate to /123');\n        });\n\n        it('should execute ng-click but not reload when href empty string and name specified', function() {\n          element(by.id('link-4')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('4');\n          expect(element(by.id('link-4')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when no href but name specified', function() {\n          element(by.id('link-5')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('5');\n          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);\n        });\n\n        it('should only change url when only ng-href', function() {\n          element(by.model('value')).clear();\n          element(by.model('value')).sendKeys('6');\n          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\\/6$/);\n\n          element(by.id('link-6')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/6$/);\n            });\n          }, 5000, 'page should navigate to /6');\n        });\n      </file>\n    </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngSrc\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `src` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrc` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrc any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngSrcset\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrcset` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrcset any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngDisabled\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * This directive sets the `disabled` attribute on the element if the\n * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `disabled`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        <label>Click me to toggle: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <button ng-model=\"button\" ng-disabled=\"checked\">Button</button>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle button', function() {\n          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,\n *     then the `disabled` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngChecked\n * @restrict A\n * @priority 100\n *\n * @description\n * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy.\n *\n * Note that this directive should not be used together with {@link ngModel `ngModel`},\n * as this can lead to unexpected behavior.\n *\n * A special directive is necessary because we cannot use interpolation inside the `checked`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        <label>Check me to check both: <input type=\"checkbox\" ng-model=\"master\"></label><br/>\n        <input id=\"checkSlave\" type=\"checkbox\" ng-checked=\"master\" aria-label=\"Slave input\">\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should check both checkBoxes', function() {\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy();\n          element(by.model('master')).click();\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,\n *     then the `checked` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngReadonly\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `readOnly` attribute on the element, if the expression inside `ngReadonly` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `readOnly`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        <label>Check me to make text readonly: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <input type=\"text\" ng-readonly=\"checked\" value=\"I'm Angular\" aria-label=\"Readonly field\" />\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle readonly attr', function() {\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,\n *     then special attribute \"readonly\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSelected\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `selected`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        <label>Check me to select: <input type=\"checkbox\" ng-model=\"selected\"></label><br/>\n        <select aria-label=\"ngSelected demo\">\n          <option>Hello!</option>\n          <option id=\"greet\" ng-selected=\"selected\">Greetings!</option>\n        </select>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should select Greetings!', function() {\n          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();\n          element(by.model('selected')).click();\n          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element OPTION\n * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,\n *     then special attribute \"selected\" will be set on the element\n */\n\n/**\n * @ngdoc directive\n * @name ngOpen\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `open`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n     <example>\n       <file name=\"index.html\">\n         <label>Check me check multiple: <input type=\"checkbox\" ng-model=\"open\"></label><br/>\n         <details id=\"details\" ng-open=\"open\">\n            <summary>Show/Hide me</summary>\n         </details>\n       </file>\n       <file name=\"protractor.js\" type=\"protractor\">\n         it('should toggle open', function() {\n           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();\n           element(by.model('open')).click();\n           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();\n         });\n       </file>\n     </example>\n *\n * @element DETAILS\n * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,\n *     then special attribute \"open\" will be set on the element\n */\n\nvar ngAttributeAliasDirectives = {};\n\n// boolean attrs are evaluated\nforEach(BOOLEAN_ATTR, function(propName, attrName) {\n  // binding to multiple is not supported\n  if (propName == \"multiple\") return;\n\n  function defaultLinkFn(scope, element, attr) {\n    scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {\n      attr.$set(attrName, !!value);\n    });\n  }\n\n  var normalized = directiveNormalize('ng-' + attrName);\n  var linkFn = defaultLinkFn;\n\n  if (propName === 'checked') {\n    linkFn = function(scope, element, attr) {\n      // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input\n      if (attr.ngModel !== attr[normalized]) {\n        defaultLinkFn(scope, element, attr);\n      }\n    };\n  }\n\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      restrict: 'A',\n      priority: 100,\n      link: linkFn\n    };\n  };\n});\n\n// aliased input attrs are evaluated\nforEach(ALIASED_ATTR, function(htmlAttr, ngAttr) {\n  ngAttributeAliasDirectives[ngAttr] = function() {\n    return {\n      priority: 100,\n      link: function(scope, element, attr) {\n        //special case ngPattern when a literal regular expression value\n        //is used as the expression (this way we don't have to watch anything).\n        if (ngAttr === \"ngPattern\" && attr.ngPattern.charAt(0) == \"/\") {\n          var match = attr.ngPattern.match(REGEX_STRING_REGEXP);\n          if (match) {\n            attr.$set(\"ngPattern\", new RegExp(match[1], match[2]));\n            return;\n          }\n        }\n\n        scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) {\n          attr.$set(ngAttr, value);\n        });\n      }\n    };\n  };\n});\n\n// ng-src, ng-srcset, ng-href are interpolated\nforEach(['src', 'srcset', 'href'], function(attrName) {\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      priority: 99, // it needs to run after the attributes are interpolated\n      link: function(scope, element, attr) {\n        var propName = attrName,\n            name = attrName;\n\n        if (attrName === 'href' &&\n            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {\n          name = 'xlinkHref';\n          attr.$attr[name] = 'xlink:href';\n          propName = null;\n        }\n\n        attr.$observe(normalized, function(value) {\n          if (!value) {\n            if (attrName === 'href') {\n              attr.$set(name, null);\n            }\n            return;\n          }\n\n          attr.$set(name, value);\n\n          // on IE, if \"ng:src\" directive declaration is used and \"src\" attribute doesn't exist\n          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need\n          // to set the property as well to achieve the desired effect.\n          // we use attr[attrName] value since $set can sanitize the url.\n          if (msie && propName) element.prop(propName, attr[name]);\n        });\n      }\n    };\n  };\n});\n\n/* global -nullFormCtrl, -SUBMITTED_CLASS, addSetValidityMethod: true\n */\nvar nullFormCtrl = {\n  $addControl: noop,\n  $$renameControl: nullFormRenameControl,\n  $removeControl: noop,\n  $setValidity: noop,\n  $setDirty: noop,\n  $setPristine: noop,\n  $setSubmitted: noop\n},\nSUBMITTED_CLASS = 'ng-submitted';\n\nfunction nullFormRenameControl(control, name) {\n  control.$name = name;\n}\n\n/**\n * @ngdoc type\n * @name form.FormController\n *\n * @property {boolean} $pristine True if user has not interacted with the form yet.\n * @property {boolean} $dirty True if user has already interacted with the form.\n * @property {boolean} $valid True if all of the containing forms and controls are valid.\n * @property {boolean} $invalid True if at least one containing control or form is invalid.\n * @property {boolean} $pending True if at least one containing control or form is pending.\n * @property {boolean} $submitted True if user has submitted the form even if its invalid.\n *\n * @property {Object} $error Is an object hash, containing references to controls or\n *  forms with failing validators, where:\n *\n *  - keys are validation tokens (error names),\n *  - values are arrays of controls or forms that have a failing validator for given error name.\n *\n *  Built-in validation tokens:\n *\n *  - `email`\n *  - `max`\n *  - `maxlength`\n *  - `min`\n *  - `minlength`\n *  - `number`\n *  - `pattern`\n *  - `required`\n *  - `url`\n *  - `date`\n *  - `datetimelocal`\n *  - `time`\n *  - `week`\n *  - `month`\n *\n * @description\n * `FormController` keeps track of all its controls and nested forms as well as the state of them,\n * such as being valid/invalid or dirty/pristine.\n *\n * Each {@link ng.directive:form form} directive creates an instance\n * of `FormController`.\n *\n */\n//asks for $scope to fool the BC controller module\nFormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate'];\nfunction FormController(element, attrs, $scope, $animate, $interpolate) {\n  var form = this,\n      controls = [];\n\n  // init state\n  form.$error = {};\n  form.$$success = {};\n  form.$pending = undefined;\n  form.$name = $interpolate(attrs.name || attrs.ngForm || '')($scope);\n  form.$dirty = false;\n  form.$pristine = true;\n  form.$valid = true;\n  form.$invalid = false;\n  form.$submitted = false;\n  form.$$parentForm = nullFormCtrl;\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$rollbackViewValue\n   *\n   * @description\n   * Rollback all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is typically needed by the reset button of\n   * a form that uses `ng-model-options` to pend updates.\n   */\n  form.$rollbackViewValue = function() {\n    forEach(controls, function(control) {\n      control.$rollbackViewValue();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$commitViewValue\n   *\n   * @description\n   * Commit all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  form.$commitViewValue = function() {\n    forEach(controls, function(control) {\n      control.$commitViewValue();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$addControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Register a control with the form. Input elements using ngModelController do this automatically\n   * when they are linked.\n   *\n   * Note that the current state of the control will not be reflected on the new parent form. This\n   * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine`\n   * state.\n   *\n   * However, if the method is used programmatically, for example by adding dynamically created controls,\n   * or controls that have been previously removed without destroying their corresponding DOM element,\n   * it's the developers responsiblity to make sure the current state propagates to the parent form.\n   *\n   * For example, if an input control is added that is already `$dirty` and has `$error` properties,\n   * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form.\n   */\n  form.$addControl = function(control) {\n    // Breaking change - before, inputs whose name was \"hasOwnProperty\" were quietly ignored\n    // and not added to the scope.  Now we throw an error.\n    assertNotHasOwnProperty(control.$name, 'input');\n    controls.push(control);\n\n    if (control.$name) {\n      form[control.$name] = control;\n    }\n\n    control.$$parentForm = form;\n  };\n\n  // Private API: rename a form control\n  form.$$renameControl = function(control, newName) {\n    var oldName = control.$name;\n\n    if (form[oldName] === control) {\n      delete form[oldName];\n    }\n    form[newName] = control;\n    control.$name = newName;\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$removeControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Deregister a control from the form.\n   *\n   * Input elements using ngModelController do this automatically when they are destroyed.\n   *\n   * Note that only the removed control's validation state (`$errors`etc.) will be removed from the\n   * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be\n   * different from case to case. For example, removing the only `$dirty` control from a form may or\n   * may not mean that the form is still `$dirty`.\n   */\n  form.$removeControl = function(control) {\n    if (control.$name && form[control.$name] === control) {\n      delete form[control.$name];\n    }\n    forEach(form.$pending, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n    forEach(form.$error, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n    forEach(form.$$success, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n\n    arrayRemove(controls, control);\n    control.$$parentForm = nullFormCtrl;\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setValidity\n   *\n   * @description\n   * Sets the validity of a form control.\n   *\n   * This method will also propagate to parent forms.\n   */\n  addSetValidityMethod({\n    ctrl: this,\n    $element: element,\n    set: function(object, property, controller) {\n      var list = object[property];\n      if (!list) {\n        object[property] = [controller];\n      } else {\n        var index = list.indexOf(controller);\n        if (index === -1) {\n          list.push(controller);\n        }\n      }\n    },\n    unset: function(object, property, controller) {\n      var list = object[property];\n      if (!list) {\n        return;\n      }\n      arrayRemove(list, controller);\n      if (list.length === 0) {\n        delete object[property];\n      }\n    },\n    $animate: $animate\n  });\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setDirty\n   *\n   * @description\n   * Sets the form to a dirty state.\n   *\n   * This method can be called to add the 'ng-dirty' class and set the form to a dirty\n   * state (ng-dirty class). This method will also propagate to parent forms.\n   */\n  form.$setDirty = function() {\n    $animate.removeClass(element, PRISTINE_CLASS);\n    $animate.addClass(element, DIRTY_CLASS);\n    form.$dirty = true;\n    form.$pristine = false;\n    form.$$parentForm.$setDirty();\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setPristine\n   *\n   * @description\n   * Sets the form to its pristine state.\n   *\n   * This method can be called to remove the 'ng-dirty' class and set the form to its pristine\n   * state (ng-pristine class). This method will also propagate to all the controls contained\n   * in this form.\n   *\n   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after\n   * saving or resetting it.\n   */\n  form.$setPristine = function() {\n    $animate.setClass(element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS);\n    form.$dirty = false;\n    form.$pristine = true;\n    form.$submitted = false;\n    forEach(controls, function(control) {\n      control.$setPristine();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setUntouched\n   *\n   * @description\n   * Sets the form to its untouched state.\n   *\n   * This method can be called to remove the 'ng-touched' class and set the form controls to their\n   * untouched state (ng-untouched class).\n   *\n   * Setting a form controls back to their untouched state is often useful when setting the form\n   * back to its pristine state.\n   */\n  form.$setUntouched = function() {\n    forEach(controls, function(control) {\n      control.$setUntouched();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setSubmitted\n   *\n   * @description\n   * Sets the form to its submitted state.\n   */\n  form.$setSubmitted = function() {\n    $animate.addClass(element, SUBMITTED_CLASS);\n    form.$submitted = true;\n    form.$$parentForm.$setSubmitted();\n  };\n}\n\n/**\n * @ngdoc directive\n * @name ngForm\n * @restrict EAC\n *\n * @description\n * Nestable alias of {@link ng.directive:form `form`} directive. HTML\n * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a\n * sub-group of controls needs to be determined.\n *\n * Note: the purpose of `ngForm` is to group controls,\n * but not to be a replacement for the `<form>` tag with all of its capabilities\n * (e.g. posting to the server, ...).\n *\n * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n *\n */\n\n /**\n * @ngdoc directive\n * @name form\n * @restrict E\n *\n * @description\n * Directive that instantiates\n * {@link form.FormController FormController}.\n *\n * If the `name` attribute is specified, the form controller is published onto the current scope under\n * this name.\n *\n * # Alias: {@link ng.directive:ngForm `ngForm`}\n *\n * In Angular, forms can be nested. This means that the outer form is valid when all of the child\n * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so\n * Angular provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to\n * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group\n * of controls needs to be determined.\n *\n * # CSS classes\n *  - `ng-valid` is set if the form is valid.\n *  - `ng-invalid` is set if the form is invalid.\n *  - `ng-pending` is set if the form is pending.\n *  - `ng-pristine` is set if the form is pristine.\n *  - `ng-dirty` is set if the form is dirty.\n *  - `ng-submitted` is set if the form was submitted.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n *\n * # Submitting a form and preventing the default action\n *\n * Since the role of forms in client-side Angular applications is different than in classical\n * roundtrip apps, it is desirable for the browser not to translate the form submission into a full\n * page reload that sends the data to the server. Instead some javascript logic should be triggered\n * to handle the form submission in an application-specific way.\n *\n * For this reason, Angular prevents the default action (form submission to the server) unless the\n * `<form>` element has an `action` attribute specified.\n *\n * You can use one of the following two ways to specify what javascript method should be called when\n * a form is submitted:\n *\n * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element\n * - {@link ng.directive:ngClick ngClick} directive on the first\n  *  button or input field of type submit (input[type=submit])\n *\n * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}\n * or {@link ng.directive:ngClick ngClick} directives.\n * This is because of the following form submission rules in the HTML specification:\n *\n * - If a form has only one input field then hitting enter in this field triggers form submit\n * (`ngSubmit`)\n * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter\n * doesn't trigger submit\n * - if a form has one or more input fields and one or more buttons or input[type=submit] then\n * hitting enter in any of the input fields will trigger the click handler on the *first* button or\n * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)\n *\n * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is\n * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * ## Animation Hooks\n *\n * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.\n * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any\n * other validations that are performed within the form. Animations in ngForm are similar to how\n * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well\n * as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style a form element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-form {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-form.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n    <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"formExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('formExample', [])\n           .controller('FormController', ['$scope', function($scope) {\n             $scope.userType = 'guest';\n           }]);\n       </script>\n       <style>\n        .my-form {\n          transition:all linear 0.5s;\n          background: transparent;\n        }\n        .my-form.ng-invalid {\n          background: red;\n        }\n       </style>\n       <form name=\"myForm\" ng-controller=\"FormController\" class=\"my-form\">\n         userType: <input name=\"input\" ng-model=\"userType\" required>\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">Required!</span><br>\n         <code>userType = {{userType}}</code><br>\n         <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br>\n         <code>myForm.input.$error = {{myForm.input.$error}}</code><br>\n         <code>myForm.$valid = {{myForm.$valid}}</code><br>\n         <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should initialize to model', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n\n          expect(userType.getText()).toContain('guest');\n          expect(valid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var userInput = element(by.model('userType'));\n\n          userInput.clear();\n          userInput.sendKeys('');\n\n          expect(userType.getText()).toEqual('userType =');\n          expect(valid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n *\n * @param {string=} name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n */\nvar formDirectiveFactory = function(isNgForm) {\n  return ['$timeout', '$parse', function($timeout, $parse) {\n    var formDirective = {\n      name: 'form',\n      restrict: isNgForm ? 'EAC' : 'E',\n      require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form\n      controller: FormController,\n      compile: function ngFormCompile(formElement, attr) {\n        // Setup initial state of the control\n        formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS);\n\n        var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false);\n\n        return {\n          pre: function ngFormPreLink(scope, formElement, attr, ctrls) {\n            var controller = ctrls[0];\n\n            // if `action` attr is not present on the form, prevent the default action (submission)\n            if (!('action' in attr)) {\n              // we can't use jq events because if a form is destroyed during submission the default\n              // action is not prevented. see #1238\n              //\n              // IE 9 is not affected because it doesn't fire a submit event and try to do a full\n              // page reload if the form was destroyed by submission of the form via a click handler\n              // on a button in the form. Looks like an IE9 specific bug.\n              var handleFormSubmission = function(event) {\n                scope.$apply(function() {\n                  controller.$commitViewValue();\n                  controller.$setSubmitted();\n                });\n\n                event.preventDefault();\n              };\n\n              addEventListenerFn(formElement[0], 'submit', handleFormSubmission);\n\n              // unregister the preventDefault listener so that we don't not leak memory but in a\n              // way that will achieve the prevention of the default action.\n              formElement.on('$destroy', function() {\n                $timeout(function() {\n                  removeEventListenerFn(formElement[0], 'submit', handleFormSubmission);\n                }, 0, false);\n              });\n            }\n\n            var parentFormCtrl = ctrls[1] || controller.$$parentForm;\n            parentFormCtrl.$addControl(controller);\n\n            var setter = nameAttr ? getSetter(controller.$name) : noop;\n\n            if (nameAttr) {\n              setter(scope, controller);\n              attr.$observe(nameAttr, function(newValue) {\n                if (controller.$name === newValue) return;\n                setter(scope, undefined);\n                controller.$$parentForm.$$renameControl(controller, newValue);\n                setter = getSetter(controller.$name);\n                setter(scope, controller);\n              });\n            }\n            formElement.on('$destroy', function() {\n              controller.$$parentForm.$removeControl(controller);\n              setter(scope, undefined);\n              extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards\n            });\n          }\n        };\n      }\n    };\n\n    return formDirective;\n\n    function getSetter(expression) {\n      if (expression === '') {\n        //create an assignable expression, so forms with an empty name can be renamed later\n        return $parse('this[\"\"]').assign;\n      }\n      return $parse(expression).assign || noop;\n    }\n  }];\n};\n\nvar formDirective = formDirectiveFactory();\nvar ngFormDirective = formDirectiveFactory(true);\n\n/* global VALID_CLASS: false,\n  INVALID_CLASS: false,\n  PRISTINE_CLASS: false,\n  DIRTY_CLASS: false,\n  UNTOUCHED_CLASS: false,\n  TOUCHED_CLASS: false,\n  ngModelMinErr: false,\n*/\n\n// Regex code is obtained from SO: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231\nvar ISO_DATE_REGEXP = /\\d{4}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\d\\.\\d+([+-][0-2]\\d:[0-5]\\d|Z)/;\n// See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987)\n// Note: We are being more lenient, because browsers are too.\n//   1. Scheme\n//   2. Slashes\n//   3. Username\n//   4. Password\n//   5. Hostname\n//   6. Port\n//   7. Path\n//   8. Query\n//   9. Fragment\n//                 1111111111111111 222   333333    44444        555555555555555555555555    666     77777777     8888888     999\nvar URL_REGEXP = /^[a-z][a-z\\d.+-]*:\\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\\s:/?#]+|\\[[a-f\\d:]+\\])(?::\\d+)?(?:\\/[^?#]*)?(?:\\?[^#]*)?(?:#.*)?$/i;\nvar EMAIL_REGEXP = /^[a-z0-9!#$%&'*+\\/=?^_`{|}~.-]+@[a-z0-9]([a-z0-9-]*[a-z0-9])?(\\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$/i;\nvar NUMBER_REGEXP = /^\\s*(\\-|\\+)?(\\d+|(\\d*(\\.\\d*)))([eE][+-]?\\d+)?\\s*$/;\nvar DATE_REGEXP = /^(\\d{4})-(\\d{2})-(\\d{2})$/;\nvar DATETIMELOCAL_REGEXP = /^(\\d{4})-(\\d\\d)-(\\d\\d)T(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\nvar WEEK_REGEXP = /^(\\d{4})-W(\\d\\d)$/;\nvar MONTH_REGEXP = /^(\\d{4})-(\\d\\d)$/;\nvar TIME_REGEXP = /^(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\n\nvar PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown';\nvar PARTIAL_VALIDATION_TYPES = createMap();\nforEach('date,datetime-local,month,time,week'.split(','), function(type) {\n  PARTIAL_VALIDATION_TYPES[type] = true;\n});\n\nvar inputType = {\n\n  /**\n   * @ngdoc input\n   * @name input[text]\n   *\n   * @description\n   * Standard HTML text input with angular data binding, inherited by most of the `input` elements.\n   *\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Adds `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n   *    This parameter is ignored for input[type=password] controls, which will never trim the\n   *    input.\n   *\n   * @example\n      <example name=\"text-input-directive\" module=\"textInputExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('textInputExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 text: 'guest',\n                 word: /^\\s*\\w*\\s*$/\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Single word:\n             <input type=\"text\" name=\"input\" ng-model=\"example.text\"\n                    ng-pattern=\"example.word\" required ng-trim=\"false\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.pattern\">\n               Single word only!</span>\n           </div>\n           <tt>text = {{example.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('example.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('guest');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if multi word', function() {\n            input.clear();\n            input.sendKeys('hello world');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'text': textInputType,\n\n    /**\n     * @ngdoc input\n     * @name input[date]\n     *\n     * @description\n     * Input with date validation and transformation. In browsers that do not yet support\n     * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601\n     * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many\n     * modern browsers do not yet support this input type, it is important to provide cues to users on the\n     * expected input format via a placeholder or label.\n     *\n     * The model must always be a Date object, otherwise Angular will throw an error.\n     * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n     *\n     * The timezone to be used to read/write the `Date` instance in the model can be defined using\n     * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n     *\n     * @param {string} ngModel Assignable angular expression to data-bind to.\n     * @param {string=} name Property name of the form under which the control is published.\n     * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n     *   valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `min=\"{{minDate | date:'yyyy-MM-dd'}}\"`). Note that `min` will also add native HTML5\n     *   constraint validation.\n     * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n     *   a valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `max=\"{{maxDate | date:'yyyy-MM-dd'}}\"`). Note that `max` will also add native HTML5\n     *   constraint validation.\n     * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO date string\n     *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n     * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO date string\n     *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n     * @param {string=} required Sets `required` validation error key if the value is not entered.\n     * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n     *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n     *    `required` when you want to data-bind to the `required` attribute.\n     * @param {string=} ngChange Angular expression to be executed when input changes due to user\n     *    interaction with the input element.\n     *\n     * @example\n     <example name=\"date-input-directive\" module=\"dateInputExample\">\n     <file name=\"index.html\">\n       <script>\n          angular.module('dateInputExample', [])\n            .controller('DateController', ['$scope', function($scope) {\n              $scope.example = {\n                value: new Date(2013, 9, 22)\n              };\n            }]);\n       </script>\n       <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n          <label for=\"exampleInput\">Pick a date in 2013:</label>\n          <input type=\"date\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n              placeholder=\"yyyy-MM-dd\" min=\"2013-01-01\" max=\"2013-12-31\" required />\n          <div role=\"alert\">\n            <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                Required!</span>\n            <span class=\"error\" ng-show=\"myForm.input.$error.date\">\n                Not a valid date!</span>\n           </div>\n           <tt>value = {{example.value | date: \"yyyy-MM-dd\"}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n       </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        var value = element(by.binding('example.value | date: \"yyyy-MM-dd\"'));\n        var valid = element(by.binding('myForm.input.$valid'));\n        var input = element(by.model('example.value'));\n\n        // currently protractor/webdriver does not support\n        // sending keys to all known HTML5 input controls\n        // for various browsers (see https://github.com/angular/protractor/issues/562).\n        function setInput(val) {\n          // set the value of the element and force validation.\n          var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n          \"ipt.value = '\" + val + \"';\" +\n          \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n          browser.executeScript(scr);\n        }\n\n        it('should initialize to model', function() {\n          expect(value.getText()).toContain('2013-10-22');\n          expect(valid.getText()).toContain('myForm.input.$valid = true');\n        });\n\n        it('should be invalid if empty', function() {\n          setInput('');\n          expect(value.getText()).toEqual('value =');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n\n        it('should be invalid if over max', function() {\n          setInput('2015-01-01');\n          expect(value.getText()).toContain('');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n     </file>\n     </example>\n     */\n  'date': createDateInputType('date', DATE_REGEXP,\n         createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']),\n         'yyyy-MM-dd'),\n\n   /**\n    * @ngdoc input\n    * @name input[datetime-local]\n    *\n    * @description\n    * Input with datetime validation and transformation. In browsers that do not yet support\n    * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.\n    *\n    * The model must always be a Date object, otherwise Angular will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable angular expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `min=\"{{minDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `min` will also add native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `max=\"{{maxDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `max` will also add native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation error key to the Date / ISO datetime string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation error key to the Date / ISO datetime string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange Angular expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"datetimelocal-input-directive\" module=\"dateExample\">\n    <file name=\"index.html\">\n      <script>\n        angular.module('dateExample', [])\n          .controller('DateController', ['$scope', function($scope) {\n            $scope.example = {\n              value: new Date(2010, 11, 28, 14, 57)\n            };\n          }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a date between in 2013:</label>\n        <input type=\"datetime-local\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"yyyy-MM-ddTHH:mm:ss\" min=\"2001-01-01T00:00:00\" max=\"2013-12-31T00:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.datetimelocal\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-MM-ddTHH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM-ddTHH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2010-12-28T14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01-01T23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP,\n      createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']),\n      'yyyy-MM-ddTHH:mm:ss.sss'),\n\n  /**\n   * @ngdoc input\n   * @name input[time]\n   *\n   * @description\n   * Input with time validation and transformation. In browsers that do not yet support\n   * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a\n   * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.\n   *\n   * The model must always be a Date object, otherwise Angular will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minTime | date:'HH:mm:ss'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxTime | date:'HH:mm:ss'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO time string the\n   *   `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO time string the\n   *   `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"time-input-directive\" module=\"timeExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('timeExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(1970, 0, 1, 14, 57, 0)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a time between 8am and 5pm:</label>\n        <input type=\"time\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"HH:mm:ss\" min=\"08:00:00\" max=\"17:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.time\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"HH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"HH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'time': createDateInputType('time', TIME_REGEXP,\n      createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']),\n     'HH:mm:ss.sss'),\n\n   /**\n    * @ngdoc input\n    * @name input[week]\n    *\n    * @description\n    * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support\n    * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * week format (yyyy-W##), for example: `2013-W02`.\n    *\n    * The model must always be a Date object, otherwise Angular will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable angular expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `min=\"{{minWeek | date:'yyyy-Www'}}\"`). Note that `min` will also add\n    *   native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `max=\"{{maxWeek | date:'yyyy-Www'}}\"`). Note that `max` will also add\n    *   native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange Angular expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"week-input-directive\" module=\"weekExample\">\n    <file name=\"index.html\">\n      <script>\n      angular.module('weekExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 0, 3)\n          };\n        }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label>Pick a date between in 2013:\n          <input id=\"exampleInput\" type=\"week\" name=\"input\" ng-model=\"example.value\"\n                 placeholder=\"YYYY-W##\" min=\"2012-W32\"\n                 max=\"2013-W52\" required />\n        </label>\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.week\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-Www\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-Www\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-W01');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-W01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'),\n\n  /**\n   * @ngdoc input\n   * @name input[month]\n   *\n   * @description\n   * Input with month validation and transformation. In browsers that do not yet support\n   * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * month format (yyyy-MM), for example: `2009-01`.\n   *\n   * The model must always be a Date object, otherwise Angular will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   * If the model is not set to the first of the month, the next view to model update will set it\n   * to the first of the month.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minMonth | date:'yyyy-MM'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxMonth | date:'yyyy-MM'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n   *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n   *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"month-input-directive\" module=\"monthExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('monthExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 9, 1)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n       <label for=\"exampleInput\">Pick a month in 2013:</label>\n       <input id=\"exampleInput\" type=\"month\" name=\"input\" ng-model=\"example.value\"\n          placeholder=\"yyyy-MM\" min=\"2013-01\" max=\"2013-12\" required />\n       <div role=\"alert\">\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n         <span class=\"error\" ng-show=\"myForm.input.$error.month\">\n            Not a valid month!</span>\n       </div>\n       <tt>value = {{example.value | date: \"yyyy-MM\"}}</tt><br/>\n       <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n       <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n       <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n       <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n      var input = element(by.model('example.value'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-10');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'month': createDateInputType('month', MONTH_REGEXP,\n     createDateParser(MONTH_REGEXP, ['yyyy', 'MM']),\n     'yyyy-MM'),\n\n  /**\n   * @ngdoc input\n   * @name input[number]\n   *\n   * @description\n   * Text input with number validation and transformation. Sets the `number` validation\n   * error if not a valid number.\n   *\n   * <div class=\"alert alert-warning\">\n   * The model must always be of type `number` otherwise Angular will throw an error.\n   * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt}\n   * error docs for more information and an example of how to convert your model if necessary.\n   * </div>\n   *\n   * ## Issues with HTML5 constraint validation\n   *\n   * In browsers that follow the\n   * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29),\n   * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}.\n   * If a non-number is entered in the input, the browser will report the value as an empty string,\n   * which means the view / model values in `ngModel` and subsequently the scope value\n   * will also be an empty string.\n   *\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"number-input-directive\" module=\"numberExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('numberExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 value: 12\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Number:\n             <input type=\"number\" name=\"input\" ng-model=\"example.value\"\n                    min=\"0\" max=\"99\" required>\n          </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.number\">\n               Not valid number!</span>\n           </div>\n           <tt>value = {{example.value}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var value = element(by.binding('example.value'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.value'));\n\n          it('should initialize to model', function() {\n            expect(value.getText()).toContain('12');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if over max', function() {\n            input.clear();\n            input.sendKeys('123');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'number': numberInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[url]\n   *\n   * @description\n   * Text input with URL validation. Sets the `url` validation error key if the content is not a\n   * valid URL.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[url]` uses a regex to validate urls that is derived from the regex\n   * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify\n   * the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"url-input-directive\" module=\"urlExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('urlExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.url = {\n                 text: 'http://google.com'\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>URL:\n             <input type=\"url\" name=\"input\" ng-model=\"url.text\" required>\n           <label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.url\">\n               Not valid url!</span>\n           </div>\n           <tt>text = {{url.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('url.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('url.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('http://google.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not url', function() {\n            input.clear();\n            input.sendKeys('box');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'url': urlInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[email]\n   *\n   * @description\n   * Text input with email validation. Sets the `email` validation error key if not a valid email\n   * address.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex\n   * used in Chromium. If you need stricter validation (e.g. requiring a top-level domain), you can\n   * use `ng-pattern` or modify the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n   *    a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"email-input-directive\" module=\"emailExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('emailExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.email = {\n                 text: 'me@example.com'\n               };\n             }]);\n         </script>\n           <form name=\"myForm\" ng-controller=\"ExampleController\">\n             <label>Email:\n               <input type=\"email\" name=\"input\" ng-model=\"email.text\" required>\n             </label>\n             <div role=\"alert\">\n               <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                 Required!</span>\n               <span class=\"error\" ng-show=\"myForm.input.$error.email\">\n                 Not valid email!</span>\n             </div>\n             <tt>text = {{email.text}}</tt><br/>\n             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>\n           </form>\n         </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('email.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('email.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('me@example.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not email', function() {\n            input.clear();\n            input.sendKeys('xxx');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'email': emailInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[radio]\n   *\n   * @description\n   * HTML radio button.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string} value The value to which the `ngModel` expression should be set when selected.\n   *    Note that `value` only supports `string` values, i.e. the scope model needs to be a string,\n   *    too. Use `ngValue` if you need complex models (`number`, `object`, ...).\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {string} ngValue Angular expression to which `ngModel` will be be set when the radio\n   *    is selected. Should be used instead of the `value` attribute if you need\n   *    a non-string `ngModel` (`boolean`, `array`, ...).\n   *\n   * @example\n      <example name=\"radio-input-directive\" module=\"radioExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('radioExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.color = {\n                 name: 'blue'\n               };\n               $scope.specialValue = {\n                 \"id\": \"12345\",\n                 \"value\": \"green\"\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"red\">\n             Red\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" ng-value=\"specialValue\">\n             Green\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"blue\">\n             Blue\n           </label><br/>\n           <tt>color = {{color.name | json}}</tt><br/>\n          </form>\n          Note that `ng-value=\"specialValue\"` sets radio item's value to be the value of `$scope.specialValue`.\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var color = element(by.binding('color.name'));\n\n            expect(color.getText()).toContain('blue');\n\n            element.all(by.model('color.name')).get(0).click();\n\n            expect(color.getText()).toContain('red');\n          });\n        </file>\n      </example>\n   */\n  'radio': radioInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[checkbox]\n   *\n   * @description\n   * HTML checkbox.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {expression=} ngTrueValue The value to which the expression should be set when selected.\n   * @param {expression=} ngFalseValue The value to which the expression should be set when not selected.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"checkbox-input-directive\" module=\"checkboxExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('checkboxExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.checkboxModel = {\n                value1 : true,\n                value2 : 'YES'\n              };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Value1:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value1\">\n           </label><br/>\n           <label>Value2:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value2\"\n                    ng-true-value=\"'YES'\" ng-false-value=\"'NO'\">\n            </label><br/>\n           <tt>value1 = {{checkboxModel.value1}}</tt><br/>\n           <tt>value2 = {{checkboxModel.value2}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var value1 = element(by.binding('checkboxModel.value1'));\n            var value2 = element(by.binding('checkboxModel.value2'));\n\n            expect(value1.getText()).toContain('true');\n            expect(value2.getText()).toContain('YES');\n\n            element(by.model('checkboxModel.value1')).click();\n            element(by.model('checkboxModel.value2')).click();\n\n            expect(value1.getText()).toContain('false');\n            expect(value2.getText()).toContain('NO');\n          });\n        </file>\n      </example>\n   */\n  'checkbox': checkboxInputType,\n\n  'hidden': noop,\n  'button': noop,\n  'submit': noop,\n  'reset': noop,\n  'file': noop\n};\n\nfunction stringBasedInputType(ctrl) {\n  ctrl.$formatters.push(function(value) {\n    return ctrl.$isEmpty(value) ? value : value.toString();\n  });\n}\n\nfunction textInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n}\n\nfunction baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  var type = lowercase(element[0].type);\n\n  // In composition mode, users are still inputing intermediate text buffer,\n  // hold the listener until composition is done.\n  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent\n  if (!$sniffer.android) {\n    var composing = false;\n\n    element.on('compositionstart', function(data) {\n      composing = true;\n    });\n\n    element.on('compositionend', function() {\n      composing = false;\n      listener();\n    });\n  }\n\n  var timeout;\n\n  var listener = function(ev) {\n    if (timeout) {\n      $browser.defer.cancel(timeout);\n      timeout = null;\n    }\n    if (composing) return;\n    var value = element.val(),\n        event = ev && ev.type;\n\n    // By default we will trim the value\n    // If the attribute ng-trim exists we will avoid trimming\n    // If input type is 'password', the value is never trimmed\n    if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) {\n      value = trim(value);\n    }\n\n    // If a control is suffering from bad input (due to native validators), browsers discard its\n    // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the\n    // control's value is the same empty value twice in a row.\n    if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) {\n      ctrl.$setViewValue(value, event);\n    }\n  };\n\n  // if the browser does support \"input\" event, we are fine - except on IE9 which doesn't fire the\n  // input event on backspace, delete or cut\n  if ($sniffer.hasEvent('input')) {\n    element.on('input', listener);\n  } else {\n    var deferListener = function(ev, input, origValue) {\n      if (!timeout) {\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (!input || input.value !== origValue) {\n            listener(ev);\n          }\n        });\n      }\n    };\n\n    element.on('keydown', function(event) {\n      var key = event.keyCode;\n\n      // ignore\n      //    command            modifiers                   arrows\n      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;\n\n      deferListener(event, this, this.value);\n    });\n\n    // if user modifies input value using context menu in IE, we need \"paste\" and \"cut\" events to catch it\n    if ($sniffer.hasEvent('paste')) {\n      element.on('paste cut', deferListener);\n    }\n  }\n\n  // if user paste into input using mouse on older browser\n  // or form autocomplete on newer browser, we need \"change\" event to catch it\n  element.on('change', listener);\n\n  // Some native input types (date-family) have the ability to change validity without\n  // firing any input/change events.\n  // For these event types, when native validators are present and the browser supports the type,\n  // check for validity changes on various DOM events.\n  if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) {\n    element.on(PARTIAL_VALIDATION_EVENTS, function(ev) {\n      if (!timeout) {\n        var validity = this[VALIDITY_STATE_PROPERTY];\n        var origBadInput = validity.badInput;\n        var origTypeMismatch = validity.typeMismatch;\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) {\n            listener(ev);\n          }\n        });\n      }\n    });\n  }\n\n  ctrl.$render = function() {\n    // Workaround for Firefox validation #12102.\n    var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue;\n    if (element.val() !== value) {\n      element.val(value);\n    }\n  };\n}\n\nfunction weekParser(isoWeek, existingDate) {\n  if (isDate(isoWeek)) {\n    return isoWeek;\n  }\n\n  if (isString(isoWeek)) {\n    WEEK_REGEXP.lastIndex = 0;\n    var parts = WEEK_REGEXP.exec(isoWeek);\n    if (parts) {\n      var year = +parts[1],\n          week = +parts[2],\n          hours = 0,\n          minutes = 0,\n          seconds = 0,\n          milliseconds = 0,\n          firstThurs = getFirstThursdayOfYear(year),\n          addDays = (week - 1) * 7;\n\n      if (existingDate) {\n        hours = existingDate.getHours();\n        minutes = existingDate.getMinutes();\n        seconds = existingDate.getSeconds();\n        milliseconds = existingDate.getMilliseconds();\n      }\n\n      return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds);\n    }\n  }\n\n  return NaN;\n}\n\nfunction createDateParser(regexp, mapping) {\n  return function(iso, date) {\n    var parts, map;\n\n    if (isDate(iso)) {\n      return iso;\n    }\n\n    if (isString(iso)) {\n      // When a date is JSON'ified to wraps itself inside of an extra\n      // set of double quotes. This makes the date parsing code unable\n      // to match the date string and parse it as a date.\n      if (iso.charAt(0) == '\"' && iso.charAt(iso.length - 1) == '\"') {\n        iso = iso.substring(1, iso.length - 1);\n      }\n      if (ISO_DATE_REGEXP.test(iso)) {\n        return new Date(iso);\n      }\n      regexp.lastIndex = 0;\n      parts = regexp.exec(iso);\n\n      if (parts) {\n        parts.shift();\n        if (date) {\n          map = {\n            yyyy: date.getFullYear(),\n            MM: date.getMonth() + 1,\n            dd: date.getDate(),\n            HH: date.getHours(),\n            mm: date.getMinutes(),\n            ss: date.getSeconds(),\n            sss: date.getMilliseconds() / 1000\n          };\n        } else {\n          map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 };\n        }\n\n        forEach(parts, function(part, index) {\n          if (index < mapping.length) {\n            map[mapping[index]] = +part;\n          }\n        });\n        return new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0);\n      }\n    }\n\n    return NaN;\n  };\n}\n\nfunction createDateInputType(type, regexp, parseDate, format) {\n  return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter) {\n    badInputChecker(scope, element, attr, ctrl);\n    baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n    var timezone = ctrl && ctrl.$options && ctrl.$options.timezone;\n    var previousDate;\n\n    ctrl.$$parserName = type;\n    ctrl.$parsers.push(function(value) {\n      if (ctrl.$isEmpty(value)) return null;\n      if (regexp.test(value)) {\n        // Note: We cannot read ctrl.$modelValue, as there might be a different\n        // parser/formatter in the processing chain so that the model\n        // contains some different data format!\n        var parsedDate = parseDate(value, previousDate);\n        if (timezone) {\n          parsedDate = convertTimezoneToLocal(parsedDate, timezone);\n        }\n        return parsedDate;\n      }\n      return undefined;\n    });\n\n    ctrl.$formatters.push(function(value) {\n      if (value && !isDate(value)) {\n        throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value);\n      }\n      if (isValidDate(value)) {\n        previousDate = value;\n        if (previousDate && timezone) {\n          previousDate = convertTimezoneToLocal(previousDate, timezone, true);\n        }\n        return $filter('date')(value, format, timezone);\n      } else {\n        previousDate = null;\n        return '';\n      }\n    });\n\n    if (isDefined(attr.min) || attr.ngMin) {\n      var minVal;\n      ctrl.$validators.min = function(value) {\n        return !isValidDate(value) || isUndefined(minVal) || parseDate(value) >= minVal;\n      };\n      attr.$observe('min', function(val) {\n        minVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    if (isDefined(attr.max) || attr.ngMax) {\n      var maxVal;\n      ctrl.$validators.max = function(value) {\n        return !isValidDate(value) || isUndefined(maxVal) || parseDate(value) <= maxVal;\n      };\n      attr.$observe('max', function(val) {\n        maxVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    function isValidDate(value) {\n      // Invalid Date: getTime() returns NaN\n      return value && !(value.getTime && value.getTime() !== value.getTime());\n    }\n\n    function parseObservedDateValue(val) {\n      return isDefined(val) && !isDate(val) ? parseDate(val) || undefined : val;\n    }\n  };\n}\n\nfunction badInputChecker(scope, element, attr, ctrl) {\n  var node = element[0];\n  var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity);\n  if (nativeValidation) {\n    ctrl.$parsers.push(function(value) {\n      var validity = element.prop(VALIDITY_STATE_PROPERTY) || {};\n      // Detect bug in FF35 for input[email] (https://bugzilla.mozilla.org/show_bug.cgi?id=1064430):\n      // - also sets validity.badInput (should only be validity.typeMismatch).\n      // - see http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#e-mail-state-(type=email)\n      // - can ignore this case as we can still read out the erroneous email...\n      return validity.badInput && !validity.typeMismatch ? undefined : value;\n    });\n  }\n}\n\nfunction numberInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  ctrl.$$parserName = 'number';\n  ctrl.$parsers.push(function(value) {\n    if (ctrl.$isEmpty(value))      return null;\n    if (NUMBER_REGEXP.test(value)) return parseFloat(value);\n    return undefined;\n  });\n\n  ctrl.$formatters.push(function(value) {\n    if (!ctrl.$isEmpty(value)) {\n      if (!isNumber(value)) {\n        throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value);\n      }\n      value = value.toString();\n    }\n    return value;\n  });\n\n  if (isDefined(attr.min) || attr.ngMin) {\n    var minVal;\n    ctrl.$validators.min = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(minVal) || value >= minVal;\n    };\n\n    attr.$observe('min', function(val) {\n      if (isDefined(val) && !isNumber(val)) {\n        val = parseFloat(val, 10);\n      }\n      minVal = isNumber(val) && !isNaN(val) ? val : undefined;\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n\n  if (isDefined(attr.max) || attr.ngMax) {\n    var maxVal;\n    ctrl.$validators.max = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(maxVal) || value <= maxVal;\n    };\n\n    attr.$observe('max', function(val) {\n      if (isDefined(val) && !isNumber(val)) {\n        val = parseFloat(val, 10);\n      }\n      maxVal = isNumber(val) && !isNaN(val) ? val : undefined;\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n}\n\nfunction urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'url';\n  ctrl.$validators.url = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || URL_REGEXP.test(value);\n  };\n}\n\nfunction emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'email';\n  ctrl.$validators.email = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value);\n  };\n}\n\nfunction radioInputType(scope, element, attr, ctrl) {\n  // make the name unique, if not defined\n  if (isUndefined(attr.name)) {\n    element.attr('name', nextUid());\n  }\n\n  var listener = function(ev) {\n    if (element[0].checked) {\n      ctrl.$setViewValue(attr.value, ev && ev.type);\n    }\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    var value = attr.value;\n    element[0].checked = (value == ctrl.$viewValue);\n  };\n\n  attr.$observe('value', ctrl.$render);\n}\n\nfunction parseConstantExpr($parse, context, name, expression, fallback) {\n  var parseFn;\n  if (isDefined(expression)) {\n    parseFn = $parse(expression);\n    if (!parseFn.constant) {\n      throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' +\n                                   '`{1}`.', name, expression);\n    }\n    return parseFn(context);\n  }\n  return fallback;\n}\n\nfunction checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true);\n  var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false);\n\n  var listener = function(ev) {\n    ctrl.$setViewValue(element[0].checked, ev && ev.type);\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    element[0].checked = ctrl.$viewValue;\n  };\n\n  // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false`\n  // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert\n  // it to a boolean.\n  ctrl.$isEmpty = function(value) {\n    return value === false;\n  };\n\n  ctrl.$formatters.push(function(value) {\n    return equals(value, trueValue);\n  });\n\n  ctrl.$parsers.push(function(value) {\n    return value ? trueValue : falseValue;\n  });\n}\n\n\n/**\n * @ngdoc directive\n * @name textarea\n * @restrict E\n *\n * @description\n * HTML textarea element control with angular data-binding. The data-binding and validation\n * properties of this element are exactly the same as those of the\n * {@link ng.directive:input input element}.\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n *    a RegExp found by evaluating the Angular expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n */\n\n\n/**\n * @ngdoc directive\n * @name input\n * @restrict E\n *\n * @description\n * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding,\n * input state control, and validation.\n * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Not every feature offered is available for all input types.\n * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`.\n * </div>\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {boolean=} ngRequired Sets `required` attribute if set to true\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel value does not match\n *    a RegExp found by evaluating the Angular expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n *    This parameter is ignored for input[type=password] controls, which will never trim the\n *    input.\n *\n * @example\n    <example name=\"input-directive\" module=\"inputExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('inputExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.user = {name: 'guest', last: 'visitor'};\n            }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <form name=\"myForm\">\n           <label>\n              User name:\n              <input type=\"text\" name=\"userName\" ng-model=\"user.name\" required>\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.userName.$error.required\">\n              Required!</span>\n           </div>\n           <label>\n              Last name:\n              <input type=\"text\" name=\"lastName\" ng-model=\"user.last\"\n              ng-minlength=\"3\" ng-maxlength=\"10\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.minlength\">\n               Too short!</span>\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.maxlength\">\n               Too long!</span>\n           </div>\n         </form>\n         <hr>\n         <tt>user = {{user}}</tt><br/>\n         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br/>\n         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br/>\n         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br/>\n         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br/>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br/>\n         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br/>\n       </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var user = element(by.exactBinding('user'));\n        var userNameValid = element(by.binding('myForm.userName.$valid'));\n        var lastNameValid = element(by.binding('myForm.lastName.$valid'));\n        var lastNameError = element(by.binding('myForm.lastName.$error'));\n        var formValid = element(by.binding('myForm.$valid'));\n        var userNameInput = element(by.model('user.name'));\n        var userLastInput = element(by.model('user.last'));\n\n        it('should initialize to model', function() {\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty when required', function() {\n          userNameInput.clear();\n          userNameInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('false');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be valid if empty when min length is set', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"\"}');\n          expect(lastNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if less than required min length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('xx');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('minlength');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be invalid if longer than max length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('some ridiculously long name');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('maxlength');\n          expect(formValid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n */\nvar inputDirective = ['$browser', '$sniffer', '$filter', '$parse',\n    function($browser, $sniffer, $filter, $parse) {\n  return {\n    restrict: 'E',\n    require: ['?ngModel'],\n    link: {\n      pre: function(scope, element, attr, ctrls) {\n        if (ctrls[0]) {\n          (inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrls[0], $sniffer,\n                                                              $browser, $filter, $parse);\n        }\n      }\n    }\n  };\n}];\n\n\n\nvar CONSTANT_VALUE_REGEXP = /^(true|false|\\d+)$/;\n/**\n * @ngdoc directive\n * @name ngValue\n *\n * @description\n * Binds the given expression to the value of `<option>` or {@link input[radio] `input[radio]`},\n * so that when the element is selected, the {@link ngModel `ngModel`} of that element is set to\n * the bound value.\n *\n * `ngValue` is useful when dynamically generating lists of radio buttons using\n * {@link ngRepeat `ngRepeat`}, as shown below.\n *\n * Likewise, `ngValue` can be used to generate `<option>` elements for\n * the {@link select `select`} element. In that case however, only strings are supported\n * for the `value `attribute, so the resulting `ngModel` will always be a string.\n * Support for `select` models with non-string values is available via `ngOptions`.\n *\n * @element input\n * @param {string=} ngValue angular expression, whose value will be bound to the `value` attribute\n *   of the `input` element\n *\n * @example\n    <example name=\"ngValue-directive\" module=\"valueExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('valueExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.names = ['pizza', 'unicorns', 'robots'];\n              $scope.my = { favorite: 'unicorns' };\n            }]);\n       </script>\n        <form ng-controller=\"ExampleController\">\n          <h2>Which is your favorite?</h2>\n            <label ng-repeat=\"name in names\" for=\"{{name}}\">\n              {{name}}\n              <input type=\"radio\"\n                     ng-model=\"my.favorite\"\n                     ng-value=\"name\"\n                     id=\"{{name}}\"\n                     name=\"favorite\">\n            </label>\n          <div>You chose {{my.favorite}}</div>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var favorite = element(by.binding('my.favorite'));\n\n        it('should initialize to model', function() {\n          expect(favorite.getText()).toContain('unicorns');\n        });\n        it('should bind the values to the inputs', function() {\n          element.all(by.model('my.favorite')).get(0).click();\n          expect(favorite.getText()).toContain('pizza');\n        });\n      </file>\n    </example>\n */\nvar ngValueDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    compile: function(tpl, tplAttr) {\n      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {\n        return function ngValueConstantLink(scope, elm, attr) {\n          attr.$set('value', scope.$eval(attr.ngValue));\n        };\n      } else {\n        return function ngValueLink(scope, elm, attr) {\n          scope.$watch(attr.ngValue, function valueWatchAction(value) {\n            attr.$set('value', value);\n          });\n        };\n      }\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngBind\n * @restrict AC\n *\n * @description\n * The `ngBind` attribute tells Angular to replace the text content of the specified HTML element\n * with the value of a given expression, and to update the text content when the value of that\n * expression changes.\n *\n * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like\n * `{{ expression }}` which is similar but less verbose.\n *\n * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily\n * displayed by the browser in its raw state before Angular compiles it. Since `ngBind` is an\n * element attribute, it makes the bindings invisible to the user while the page is loading.\n *\n * An alternative solution to this problem would be using the\n * {@link ng.directive:ngCloak ngCloak} directive.\n *\n *\n * @element ANY\n * @param {expression} ngBind {@link guide/expression Expression} to evaluate.\n *\n * @example\n * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.\n   <example module=\"bindExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.name = 'Whirled';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter name: <input type=\"text\" ng-model=\"name\"></label><br>\n         Hello <span ng-bind=\"name\"></span>!\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var nameInput = element(by.model('name'));\n\n         expect(element(by.binding('name')).getText()).toBe('Whirled');\n         nameInput.clear();\n         nameInput.sendKeys('world');\n         expect(element(by.binding('name')).getText()).toBe('world');\n       });\n     </file>\n   </example>\n */\nvar ngBindDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'AC',\n    compile: function ngBindCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBind);\n        element = element[0];\n        scope.$watch(attr.ngBind, function ngBindWatchAction(value) {\n          element.textContent = isUndefined(value) ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindTemplate\n *\n * @description\n * The `ngBindTemplate` directive specifies that the element\n * text content should be replaced with the interpolation of the template\n * in the `ngBindTemplate` attribute.\n * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`\n * expressions. This directive is needed since some HTML elements\n * (such as TITLE and OPTION) cannot contain SPAN elements.\n *\n * @element ANY\n * @param {string} ngBindTemplate template of form\n *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.\n *\n * @example\n * Try it here: enter text in text box and watch the greeting change.\n   <example module=\"bindExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.salutation = 'Hello';\n             $scope.name = 'World';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n        <label>Salutation: <input type=\"text\" ng-model=\"salutation\"></label><br>\n        <label>Name: <input type=\"text\" ng-model=\"name\"></label><br>\n        <pre ng-bind-template=\"{{salutation}} {{name}}!\"></pre>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var salutationElem = element(by.binding('salutation'));\n         var salutationInput = element(by.model('salutation'));\n         var nameInput = element(by.model('name'));\n\n         expect(salutationElem.getText()).toBe('Hello World!');\n\n         salutationInput.clear();\n         salutationInput.sendKeys('Greetings');\n         nameInput.clear();\n         nameInput.sendKeys('user');\n\n         expect(salutationElem.getText()).toBe('Greetings user!');\n       });\n     </file>\n   </example>\n */\nvar ngBindTemplateDirective = ['$interpolate', '$compile', function($interpolate, $compile) {\n  return {\n    compile: function ngBindTemplateCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindTemplateLink(scope, element, attr) {\n        var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));\n        $compile.$$addBindingInfo(element, interpolateFn.expressions);\n        element = element[0];\n        attr.$observe('ngBindTemplate', function(value) {\n          element.textContent = isUndefined(value) ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindHtml\n *\n * @description\n * Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default,\n * the resulting HTML content will be sanitized using the {@link ngSanitize.$sanitize $sanitize} service.\n * To utilize this functionality, ensure that `$sanitize` is available, for example, by including {@link\n * ngSanitize} in your module's dependencies (not in core Angular). In order to use {@link ngSanitize}\n * in your module's dependencies, you need to include \"angular-sanitize.js\" in your application.\n *\n * You may also bypass sanitization for values you know are safe. To do so, bind to\n * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example\n * under {@link ng.$sce#show-me-an-example-using-sce- Strict Contextual Escaping (SCE)}.\n *\n * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you\n * will have an exception (instead of an exploit.)\n *\n * @element ANY\n * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.\n *\n * @example\n\n   <example module=\"bindHtmlExample\" deps=\"angular-sanitize.js\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n        <p ng-bind-html=\"myHTML\"></p>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n       angular.module('bindHtmlExample', ['ngSanitize'])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.myHTML =\n              'I am an <code>HTML</code>string with ' +\n              '<a href=\"#\">links!</a> and other <em>stuff</em>';\n         }]);\n     </file>\n\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind-html', function() {\n         expect(element(by.binding('myHTML')).getText()).toBe(\n             'I am an HTMLstring with links! and other stuff');\n       });\n     </file>\n   </example>\n */\nvar ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {\n  return {\n    restrict: 'A',\n    compile: function ngBindHtmlCompile(tElement, tAttrs) {\n      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);\n      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function sceValueOf(val) {\n        // Unwrap the value to compare the actual inner safe value, not the wrapper object.\n        return $sce.valueOf(val);\n      });\n      $compile.$$addBindingClass(tElement);\n\n      return function ngBindHtmlLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBindHtml);\n\n        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {\n          // The watched value is the unwrapped value. To avoid re-escaping, use the direct getter.\n          var value = ngBindHtmlGetter(scope);\n          element.html($sce.getTrustedHtml(value) || '');\n        });\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngChange\n *\n * @description\n * Evaluate the given expression when the user changes the input.\n * The expression is evaluated immediately, unlike the JavaScript onchange event\n * which only triggers at the end of a change (usually, when the user leaves the\n * form element or presses the return key).\n *\n * The `ngChange` expression is only evaluated when a change in the input value causes\n * a new value to be committed to the model.\n *\n * It will not be evaluated:\n * * if the value returned from the `$parsers` transformation pipeline has not changed\n * * if the input has continued to be invalid since the model will stay `null`\n * * if the model is changed programmatically and not by a change to the input value\n *\n *\n * Note, this directive requires `ngModel` to be present.\n *\n * @element input\n * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change\n * in input value.\n *\n * @example\n * <example name=\"ngChange-directive\" module=\"changeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('changeExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.counter = 0;\n *           $scope.change = function() {\n *             $scope.counter++;\n *           };\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input type=\"checkbox\" ng-model=\"confirmed\" ng-change=\"change()\" id=\"ng-change-example1\" />\n *       <input type=\"checkbox\" ng-model=\"confirmed\" id=\"ng-change-example2\" />\n *       <label for=\"ng-change-example2\">Confirmed</label><br />\n *       <tt>debug = {{confirmed}}</tt><br/>\n *       <tt>counter = {{counter}}</tt><br/>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var counter = element(by.binding('counter'));\n *     var debug = element(by.binding('confirmed'));\n *\n *     it('should evaluate the expression if changing from view', function() {\n *       expect(counter.getText()).toContain('0');\n *\n *       element(by.id('ng-change-example1')).click();\n *\n *       expect(counter.getText()).toContain('1');\n *       expect(debug.getText()).toContain('true');\n *     });\n *\n *     it('should not evaluate the expression if changing from model', function() {\n *       element(by.id('ng-change-example2')).click();\n\n *       expect(counter.getText()).toContain('0');\n *       expect(debug.getText()).toContain('true');\n *     });\n *   </file>\n * </example>\n */\nvar ngChangeDirective = valueFn({\n  restrict: 'A',\n  require: 'ngModel',\n  link: function(scope, element, attr, ctrl) {\n    ctrl.$viewChangeListeners.push(function() {\n      scope.$eval(attr.ngChange);\n    });\n  }\n});\n\nfunction classDirective(name, selector) {\n  name = 'ngClass' + name;\n  return ['$animate', function($animate) {\n    return {\n      restrict: 'AC',\n      link: function(scope, element, attr) {\n        var oldVal;\n\n        scope.$watch(attr[name], ngClassWatchAction, true);\n\n        attr.$observe('class', function(value) {\n          ngClassWatchAction(scope.$eval(attr[name]));\n        });\n\n\n        if (name !== 'ngClass') {\n          scope.$watch('$index', function($index, old$index) {\n            // jshint bitwise: false\n            var mod = $index & 1;\n            if (mod !== (old$index & 1)) {\n              var classes = arrayClasses(scope.$eval(attr[name]));\n              mod === selector ?\n                addClasses(classes) :\n                removeClasses(classes);\n            }\n          });\n        }\n\n        function addClasses(classes) {\n          var newClasses = digestClassCounts(classes, 1);\n          attr.$addClass(newClasses);\n        }\n\n        function removeClasses(classes) {\n          var newClasses = digestClassCounts(classes, -1);\n          attr.$removeClass(newClasses);\n        }\n\n        function digestClassCounts(classes, count) {\n          // Use createMap() to prevent class assumptions involving property\n          // names in Object.prototype\n          var classCounts = element.data('$classCounts') || createMap();\n          var classesToUpdate = [];\n          forEach(classes, function(className) {\n            if (count > 0 || classCounts[className]) {\n              classCounts[className] = (classCounts[className] || 0) + count;\n              if (classCounts[className] === +(count > 0)) {\n                classesToUpdate.push(className);\n              }\n            }\n          });\n          element.data('$classCounts', classCounts);\n          return classesToUpdate.join(' ');\n        }\n\n        function updateClasses(oldClasses, newClasses) {\n          var toAdd = arrayDifference(newClasses, oldClasses);\n          var toRemove = arrayDifference(oldClasses, newClasses);\n          toAdd = digestClassCounts(toAdd, 1);\n          toRemove = digestClassCounts(toRemove, -1);\n          if (toAdd && toAdd.length) {\n            $animate.addClass(element, toAdd);\n          }\n          if (toRemove && toRemove.length) {\n            $animate.removeClass(element, toRemove);\n          }\n        }\n\n        function ngClassWatchAction(newVal) {\n          if (selector === true || scope.$index % 2 === selector) {\n            var newClasses = arrayClasses(newVal || []);\n            if (!oldVal) {\n              addClasses(newClasses);\n            } else if (!equals(newVal,oldVal)) {\n              var oldClasses = arrayClasses(oldVal);\n              updateClasses(oldClasses, newClasses);\n            }\n          }\n          if (isArray(newVal)) {\n            oldVal = newVal.map(function(v) { return shallowCopy(v); });\n          } else {\n            oldVal = shallowCopy(newVal);\n          }\n        }\n      }\n    };\n\n    function arrayDifference(tokens1, tokens2) {\n      var values = [];\n\n      outer:\n      for (var i = 0; i < tokens1.length; i++) {\n        var token = tokens1[i];\n        for (var j = 0; j < tokens2.length; j++) {\n          if (token == tokens2[j]) continue outer;\n        }\n        values.push(token);\n      }\n      return values;\n    }\n\n    function arrayClasses(classVal) {\n      var classes = [];\n      if (isArray(classVal)) {\n        forEach(classVal, function(v) {\n          classes = classes.concat(arrayClasses(v));\n        });\n        return classes;\n      } else if (isString(classVal)) {\n        return classVal.split(' ');\n      } else if (isObject(classVal)) {\n        forEach(classVal, function(v, k) {\n          if (v) {\n            classes = classes.concat(k.split(' '));\n          }\n        });\n        return classes;\n      }\n      return classVal;\n    }\n  }];\n}\n\n/**\n * @ngdoc directive\n * @name ngClass\n * @restrict AC\n *\n * @description\n * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding\n * an expression that represents all classes to be added.\n *\n * The directive operates in three different ways, depending on which of three types the expression\n * evaluates to:\n *\n * 1. If the expression evaluates to a string, the string should be one or more space-delimited class\n * names.\n *\n * 2. If the expression evaluates to an object, then for each key-value pair of the\n * object with a truthy value the corresponding key is used as a class name.\n *\n * 3. If the expression evaluates to an array, each element of the array should either be a string as in\n * type 1 or an object as in type 2. This means that you can mix strings and objects together in an array\n * to give you more control over what CSS classes appear. See the code below for an example of this.\n *\n *\n * The directive won't add duplicate classes if a particular class was already set.\n *\n * When the expression changes, the previously added classes are removed and only then are the\n * new classes added.\n *\n * @animations\n * **add** - happens just before the class is applied to the elements\n *\n * **remove** - happens just before the class is removed from the element\n *\n * @element ANY\n * @param {expression} ngClass {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class\n *   names, an array, or a map of class names to boolean values. In the case of a map, the\n *   names of the properties whose values are truthy will be added as css classes to the\n *   element.\n *\n * @example Example that demonstrates basic bindings via ngClass directive.\n   <example>\n     <file name=\"index.html\">\n       <p ng-class=\"{strike: deleted, bold: important, 'has-error': error}\">Map Syntax Example</p>\n       <label>\n          <input type=\"checkbox\" ng-model=\"deleted\">\n          deleted (apply \"strike\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"important\">\n          important (apply \"bold\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"error\">\n          error (apply \"has-error\" class)\n       </label>\n       <hr>\n       <p ng-class=\"style\">Using String Syntax</p>\n       <input type=\"text\" ng-model=\"style\"\n              placeholder=\"Type: bold strike red\" aria-label=\"Type: bold strike red\">\n       <hr>\n       <p ng-class=\"[style1, style2, style3]\">Using Array Syntax</p>\n       <input ng-model=\"style1\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style2\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 2\"><br>\n       <input ng-model=\"style3\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 3\"><br>\n       <hr>\n       <p ng-class=\"[style4, {orange: warning}]\">Using Array and Map Syntax</p>\n       <input ng-model=\"style4\" placeholder=\"Type: bold, strike\" aria-label=\"Type: bold, strike\"><br>\n       <label><input type=\"checkbox\" ng-model=\"warning\"> warning (apply \"orange\" class)</label>\n     </file>\n     <file name=\"style.css\">\n       .strike {\n           text-decoration: line-through;\n       }\n       .bold {\n           font-weight: bold;\n       }\n       .red {\n           color: red;\n       }\n       .has-error {\n           color: red;\n           background-color: yellow;\n       }\n       .orange {\n           color: orange;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var ps = element.all(by.css('p'));\n\n       it('should let you toggle the class', function() {\n\n         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);\n         expect(ps.first().getAttribute('class')).not.toMatch(/has-error/);\n\n         element(by.model('important')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/bold/);\n\n         element(by.model('error')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/has-error/);\n       });\n\n       it('should let you toggle string example', function() {\n         expect(ps.get(1).getAttribute('class')).toBe('');\n         element(by.model('style')).clear();\n         element(by.model('style')).sendKeys('red');\n         expect(ps.get(1).getAttribute('class')).toBe('red');\n       });\n\n       it('array example should have 3 classes', function() {\n         expect(ps.get(2).getAttribute('class')).toBe('');\n         element(by.model('style1')).sendKeys('bold');\n         element(by.model('style2')).sendKeys('strike');\n         element(by.model('style3')).sendKeys('red');\n         expect(ps.get(2).getAttribute('class')).toBe('bold strike red');\n       });\n\n       it('array with map example should have 2 classes', function() {\n         expect(ps.last().getAttribute('class')).toBe('');\n         element(by.model('style4')).sendKeys('bold');\n         element(by.model('warning')).click();\n         expect(ps.last().getAttribute('class')).toBe('bold orange');\n       });\n     </file>\n   </example>\n\n   ## Animations\n\n   The example below demonstrates how to perform animations using ngClass.\n\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n      <input id=\"setbtn\" type=\"button\" value=\"set\" ng-click=\"myVar='my-class'\">\n      <input id=\"clearbtn\" type=\"button\" value=\"clear\" ng-click=\"myVar=''\">\n      <br>\n      <span class=\"base-class\" ng-class=\"myVar\">Sample Text</span>\n     </file>\n     <file name=\"style.css\">\n       .base-class {\n         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n       }\n\n       .base-class.my-class {\n         color: red;\n         font-size:3em;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class', function() {\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n\n         element(by.id('setbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).\n           toMatch(/my-class/);\n\n         element(by.id('clearbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n       });\n     </file>\n   </example>\n\n\n   ## ngClass and pre-existing CSS3 Transitions/Animations\n   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.\n   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder\n   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure\n   to view the step by step details of {@link $animate#addClass $animate.addClass} and\n   {@link $animate#removeClass $animate.removeClass}.\n */\nvar ngClassDirective = classDirective('', true);\n\n/**\n * @ngdoc directive\n * @name ngClassOdd\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}}\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassOddDirective = classDirective('Odd', 0);\n\n/**\n * @ngdoc directive\n * @name ngClassEven\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The\n *   result of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}} &nbsp; &nbsp; &nbsp;\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassEvenDirective = classDirective('Even', 1);\n\n/**\n * @ngdoc directive\n * @name ngCloak\n * @restrict AC\n *\n * @description\n * The `ngCloak` directive is used to prevent the Angular html template from being briefly\n * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this\n * directive to avoid the undesirable flicker effect caused by the html template display.\n *\n * The directive can be applied to the `<body>` element, but the preferred usage is to apply\n * multiple `ngCloak` directives to small portions of the page to permit progressive rendering\n * of the browser view.\n *\n * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and\n * `angular.min.js`.\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```css\n * [ng\\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {\n *   display: none !important;\n * }\n * ```\n *\n * When this css rule is loaded by the browser, all html elements (including their children) that\n * are tagged with the `ngCloak` directive are hidden. When Angular encounters this directive\n * during the compilation of the template it deletes the `ngCloak` element attribute, making\n * the compiled element visible.\n *\n * For the best result, the `angular.js` script must be loaded in the head section of the html\n * document; alternatively, the css rule above must be included in the external stylesheet of the\n * application.\n *\n * @element ANY\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <div id=\"template1\" ng-cloak>{{ 'hello' }}</div>\n        <div id=\"template2\" class=\"ng-cloak\">{{ 'world' }}</div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should remove the template directive and css class', function() {\n         expect($('#template1').getAttribute('ng-cloak')).\n           toBeNull();\n         expect($('#template2').getAttribute('ng-cloak')).\n           toBeNull();\n       });\n     </file>\n   </example>\n *\n */\nvar ngCloakDirective = ngDirective({\n  compile: function(element, attr) {\n    attr.$set('ngCloak', undefined);\n    element.removeClass('ng-cloak');\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngController\n *\n * @description\n * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular\n * supports the principles behind the Model-View-Controller design pattern.\n *\n * MVC components in angular:\n *\n * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties\n *   are accessed through bindings.\n * * View — The template (HTML with data bindings) that is rendered into the View.\n * * Controller — The `ngController` directive specifies a Controller class; the class contains business\n *   logic behind the application to decorate the scope with functions and values\n *\n * Note that you can also attach controllers to the DOM by declaring it in a route definition\n * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller\n * again using `ng-controller` in the template itself.  This will cause the controller to be attached\n * and executed twice.\n *\n * @element ANY\n * @scope\n * @priority 500\n * @param {expression} ngController Name of a constructor function registered with the current\n * {@link ng.$controllerProvider $controllerProvider} or an {@link guide/expression expression}\n * that on the current scope evaluates to a constructor function.\n *\n * The controller instance can be published into a scope property by specifying\n * `ng-controller=\"as propertyName\"`.\n *\n * If the current `$controllerProvider` is configured to use globals (via\n * {@link ng.$controllerProvider#allowGlobals `$controllerProvider.allowGlobals()` }), this may\n * also be the name of a globally accessible constructor function (not recommended).\n *\n * @example\n * Here is a simple form for editing user contact information. Adding, removing, clearing, and\n * greeting are methods declared on the controller (see source tab). These methods can\n * easily be called from the angular markup. Any changes to the data are automatically reflected\n * in the View without the need for a manual update.\n *\n * Two different declaration styles are included below:\n *\n * * one binds methods and properties directly onto the controller using `this`:\n * `ng-controller=\"SettingsController1 as settings\"`\n * * one injects `$scope` into the controller:\n * `ng-controller=\"SettingsController2\"`\n *\n * The second option is more common in the Angular community, and is generally used in boilerplates\n * and in this guide. However, there are advantages to binding properties directly to the controller\n * and avoiding scope.\n *\n * * Using `controller as` makes it obvious which controller you are accessing in the template when\n * multiple controllers apply to an element.\n * * If you are writing your controllers as classes you have easier access to the properties and\n * methods, which will appear on the scope, from inside the controller code.\n * * Since there is always a `.` in the bindings, you don't have to worry about prototypal\n * inheritance masking primitives.\n *\n * This example demonstrates the `controller as` syntax.\n *\n * <example name=\"ngControllerAs\" module=\"controllerAsExample\">\n *   <file name=\"index.html\">\n *    <div id=\"ctrl-as-exmpl\" ng-controller=\"SettingsController1 as settings\">\n *      <label>Name: <input type=\"text\" ng-model=\"settings.name\"/></label>\n *      <button ng-click=\"settings.greet()\">greet</button><br/>\n *      Contact:\n *      <ul>\n *        <li ng-repeat=\"contact in settings.contacts\">\n *          <select ng-model=\"contact.type\" aria-label=\"Contact method\" id=\"select_{{$index}}\">\n *             <option>phone</option>\n *             <option>email</option>\n *          </select>\n *          <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *          <button ng-click=\"settings.clearContact(contact)\">clear</button>\n *          <button ng-click=\"settings.removeContact(contact)\" aria-label=\"Remove\">X</button>\n *        </li>\n *        <li><button ng-click=\"settings.addContact()\">add</button></li>\n *     </ul>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('controllerAsExample', [])\n *      .controller('SettingsController1', SettingsController1);\n *\n *    function SettingsController1() {\n *      this.name = \"John Smith\";\n *      this.contacts = [\n *        {type: 'phone', value: '408 555 1212'},\n *        {type: 'email', value: 'john.smith@example.org'} ];\n *    }\n *\n *    SettingsController1.prototype.greet = function() {\n *      alert(this.name);\n *    };\n *\n *    SettingsController1.prototype.addContact = function() {\n *      this.contacts.push({type: 'email', value: 'yourname@example.org'});\n *    };\n *\n *    SettingsController1.prototype.removeContact = function(contactToRemove) {\n *     var index = this.contacts.indexOf(contactToRemove);\n *      this.contacts.splice(index, 1);\n *    };\n *\n *    SettingsController1.prototype.clearContact = function(contact) {\n *      contact.type = 'phone';\n *      contact.value = '';\n *    };\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should check controller as', function() {\n *       var container = element(by.id('ctrl-as-exmpl'));\n *         expect(container.element(by.model('settings.name'))\n *           .getAttribute('value')).toBe('John Smith');\n *\n *       var firstRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(0));\n *       var secondRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(1));\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('408 555 1212');\n *\n *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('john.smith@example.org');\n *\n *       firstRepeat.element(by.buttonText('clear')).click();\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('');\n *\n *       container.element(by.buttonText('add')).click();\n *\n *       expect(container.element(by.repeater('contact in settings.contacts').row(2))\n *           .element(by.model('contact.value'))\n *           .getAttribute('value'))\n *           .toBe('yourname@example.org');\n *     });\n *   </file>\n * </example>\n *\n * This example demonstrates the \"attach to `$scope`\" style of controller.\n *\n * <example name=\"ngController\" module=\"controllerExample\">\n *  <file name=\"index.html\">\n *   <div id=\"ctrl-exmpl\" ng-controller=\"SettingsController2\">\n *     <label>Name: <input type=\"text\" ng-model=\"name\"/></label>\n *     <button ng-click=\"greet()\">greet</button><br/>\n *     Contact:\n *     <ul>\n *       <li ng-repeat=\"contact in contacts\">\n *         <select ng-model=\"contact.type\" id=\"select_{{$index}}\">\n *            <option>phone</option>\n *            <option>email</option>\n *         </select>\n *         <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *         <button ng-click=\"clearContact(contact)\">clear</button>\n *         <button ng-click=\"removeContact(contact)\">X</button>\n *       </li>\n *       <li>[ <button ng-click=\"addContact()\">add</button> ]</li>\n *    </ul>\n *   </div>\n *  </file>\n *  <file name=\"app.js\">\n *   angular.module('controllerExample', [])\n *     .controller('SettingsController2', ['$scope', SettingsController2]);\n *\n *   function SettingsController2($scope) {\n *     $scope.name = \"John Smith\";\n *     $scope.contacts = [\n *       {type:'phone', value:'408 555 1212'},\n *       {type:'email', value:'john.smith@example.org'} ];\n *\n *     $scope.greet = function() {\n *       alert($scope.name);\n *     };\n *\n *     $scope.addContact = function() {\n *       $scope.contacts.push({type:'email', value:'yourname@example.org'});\n *     };\n *\n *     $scope.removeContact = function(contactToRemove) {\n *       var index = $scope.contacts.indexOf(contactToRemove);\n *       $scope.contacts.splice(index, 1);\n *     };\n *\n *     $scope.clearContact = function(contact) {\n *       contact.type = 'phone';\n *       contact.value = '';\n *     };\n *   }\n *  </file>\n *  <file name=\"protractor.js\" type=\"protractor\">\n *    it('should check controller', function() {\n *      var container = element(by.id('ctrl-exmpl'));\n *\n *      expect(container.element(by.model('name'))\n *          .getAttribute('value')).toBe('John Smith');\n *\n *      var firstRepeat =\n *          container.element(by.repeater('contact in contacts').row(0));\n *      var secondRepeat =\n *          container.element(by.repeater('contact in contacts').row(1));\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('408 555 1212');\n *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('john.smith@example.org');\n *\n *      firstRepeat.element(by.buttonText('clear')).click();\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('');\n *\n *      container.element(by.buttonText('add')).click();\n *\n *      expect(container.element(by.repeater('contact in contacts').row(2))\n *          .element(by.model('contact.value'))\n *          .getAttribute('value'))\n *          .toBe('yourname@example.org');\n *    });\n *  </file>\n *</example>\n\n */\nvar ngControllerDirective = [function() {\n  return {\n    restrict: 'A',\n    scope: true,\n    controller: '@',\n    priority: 500\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngCsp\n *\n * @element html\n * @description\n *\n * Angular has some features that can break certain\n * [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) rules.\n *\n * If you intend to implement these rules then you must tell Angular not to use these features.\n *\n * This is necessary when developing things like Google Chrome Extensions or Universal Windows Apps.\n *\n *\n * The following rules affect Angular:\n *\n * * `unsafe-eval`: this rule forbids apps to use `eval` or `Function(string)` generated functions\n * (among other things). Angular makes use of this in the {@link $parse} service to provide a 30%\n * increase in the speed of evaluating Angular expressions.\n *\n * * `unsafe-inline`: this rule forbids apps from inject custom styles into the document. Angular\n * makes use of this to include some CSS rules (e.g. {@link ngCloak} and {@link ngHide}).\n * To make these directives work when a CSP rule is blocking inline styles, you must link to the\n * `angular-csp.css` in your HTML manually.\n *\n * If you do not provide `ngCsp` then Angular tries to autodetect if CSP is blocking unsafe-eval\n * and automatically deactivates this feature in the {@link $parse} service. This autodetection,\n * however, triggers a CSP error to be logged in the console:\n *\n * ```\n * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of\n * script in the following Content Security Policy directive: \"default-src 'self'\". Note that\n * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.\n * ```\n *\n * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`\n * directive on an element of the HTML document that appears before the `<script>` tag that loads\n * the `angular.js` file.\n *\n * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*\n *\n * You can specify which of the CSP related Angular features should be deactivated by providing\n * a value for the `ng-csp` attribute. The options are as follows:\n *\n * * no-inline-style: this stops Angular from injecting CSS styles into the DOM\n *\n * * no-unsafe-eval: this stops Angular from optimising $parse with unsafe eval of strings\n *\n * You can use these values in the following combinations:\n *\n *\n * * No declaration means that Angular will assume that you can do inline styles, but it will do\n * a runtime check for unsafe-eval. E.g. `<body>`. This is backwardly compatible with previous versions\n * of Angular.\n *\n * * A simple `ng-csp` (or `data-ng-csp`) attribute will tell Angular to deactivate both inline\n * styles and unsafe eval. E.g. `<body ng-csp>`. This is backwardly compatible with previous versions\n * of Angular.\n *\n * * Specifying only `no-unsafe-eval` tells Angular that we must not use eval, but that we can inject\n * inline styles. E.g. `<body ng-csp=\"no-unsafe-eval\">`.\n *\n * * Specifying only `no-inline-style` tells Angular that we must not inject styles, but that we can\n * run eval - no automcatic check for unsafe eval will occur. E.g. `<body ng-csp=\"no-inline-style\">`\n *\n * * Specifying both `no-unsafe-eval` and `no-inline-style` tells Angular that we must not inject\n * styles nor use eval, which is the same as an empty: ng-csp.\n * E.g.`<body ng-csp=\"no-inline-style;no-unsafe-eval\">`\n *\n * @example\n * This example shows how to apply the `ngCsp` directive to the `html` tag.\n   ```html\n     <!doctype html>\n     <html ng-app ng-csp>\n     ...\n     ...\n     </html>\n   ```\n  * @example\n      // Note: the suffix `.csp` in the example name triggers\n      // csp mode in our http server!\n      <example name=\"example.csp\" module=\"cspExample\" ng-csp=\"true\">\n        <file name=\"index.html\">\n          <div ng-controller=\"MainController as ctrl\">\n            <div>\n              <button ng-click=\"ctrl.inc()\" id=\"inc\">Increment</button>\n              <span id=\"counter\">\n                {{ctrl.counter}}\n              </span>\n            </div>\n\n            <div>\n              <button ng-click=\"ctrl.evil()\" id=\"evil\">Evil</button>\n              <span id=\"evilError\">\n                {{ctrl.evilError}}\n              </span>\n            </div>\n          </div>\n        </file>\n        <file name=\"script.js\">\n           angular.module('cspExample', [])\n             .controller('MainController', function() {\n                this.counter = 0;\n                this.inc = function() {\n                  this.counter++;\n                };\n                this.evil = function() {\n                  // jshint evil:true\n                  try {\n                    eval('1+2');\n                  } catch (e) {\n                    this.evilError = e.message;\n                  }\n                };\n              });\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var util, webdriver;\n\n          var incBtn = element(by.id('inc'));\n          var counter = element(by.id('counter'));\n          var evilBtn = element(by.id('evil'));\n          var evilError = element(by.id('evilError'));\n\n          function getAndClearSevereErrors() {\n            return browser.manage().logs().get('browser').then(function(browserLog) {\n              return browserLog.filter(function(logEntry) {\n                return logEntry.level.value > webdriver.logging.Level.WARNING.value;\n              });\n            });\n          }\n\n          function clearErrors() {\n            getAndClearSevereErrors();\n          }\n\n          function expectNoErrors() {\n            getAndClearSevereErrors().then(function(filteredLog) {\n              expect(filteredLog.length).toEqual(0);\n              if (filteredLog.length) {\n                console.log('browser console errors: ' + util.inspect(filteredLog));\n              }\n            });\n          }\n\n          function expectError(regex) {\n            getAndClearSevereErrors().then(function(filteredLog) {\n              var found = false;\n              filteredLog.forEach(function(log) {\n                if (log.message.match(regex)) {\n                  found = true;\n                }\n              });\n              if (!found) {\n                throw new Error('expected an error that matches ' + regex);\n              }\n            });\n          }\n\n          beforeEach(function() {\n            util = require('util');\n            webdriver = require('protractor/node_modules/selenium-webdriver');\n          });\n\n          // For now, we only test on Chrome,\n          // as Safari does not load the page with Protractor's injected scripts,\n          // and Firefox webdriver always disables content security policy (#6358)\n          if (browser.params.browser !== 'chrome') {\n            return;\n          }\n\n          it('should not report errors when the page is loaded', function() {\n            // clear errors so we are not dependent on previous tests\n            clearErrors();\n            // Need to reload the page as the page is already loaded when\n            // we come here\n            browser.driver.getCurrentUrl().then(function(url) {\n              browser.get(url);\n            });\n            expectNoErrors();\n          });\n\n          it('should evaluate expressions', function() {\n            expect(counter.getText()).toEqual('0');\n            incBtn.click();\n            expect(counter.getText()).toEqual('1');\n            expectNoErrors();\n          });\n\n          it('should throw and report an error when using \"eval\"', function() {\n            evilBtn.click();\n            expect(evilError.getText()).toMatch(/Content Security Policy/);\n            expectError(/Content Security Policy/);\n          });\n        </file>\n      </example>\n  */\n\n// ngCsp is not implemented as a proper directive any more, because we need it be processed while we\n// bootstrap the system (before $parse is instantiated), for this reason we just have\n// the csp() fn that looks for the `ng-csp` attribute anywhere in the current doc\n\n/**\n * @ngdoc directive\n * @name ngClick\n *\n * @description\n * The ngClick directive allows you to specify custom behavior when\n * an element is clicked.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon\n * click. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-click=\"count = count + 1\" ng-init=\"count=0\">\n        Increment\n      </button>\n      <span>\n        count: {{count}}\n      </span>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-click', function() {\n         expect(element(by.binding('count')).getText()).toMatch('0');\n         element(by.css('button')).click();\n         expect(element(by.binding('count')).getText()).toMatch('1');\n       });\n     </file>\n   </example>\n */\n/*\n * A collection of directives that allows creation of custom event handlers that are defined as\n * angular expressions and are compiled and executed within the current scope.\n */\nvar ngEventDirectives = {};\n\n// For events that might fire synchronously during DOM manipulation\n// we need to execute their event handlers asynchronously using $evalAsync,\n// so that they are not executed in an inconsistent state.\nvar forceAsyncEvents = {\n  'blur': true,\n  'focus': true\n};\nforEach(\n  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),\n  function(eventName) {\n    var directiveName = directiveNormalize('ng-' + eventName);\n    ngEventDirectives[directiveName] = ['$parse', '$rootScope', function($parse, $rootScope) {\n      return {\n        restrict: 'A',\n        compile: function($element, attr) {\n          // We expose the powerful $event object on the scope that provides access to the Window,\n          // etc. that isn't protected by the fast paths in $parse.  We explicitly request better\n          // checks at the cost of speed since event handler expressions are not executed as\n          // frequently as regular change detection.\n          var fn = $parse(attr[directiveName], /* interceptorFn */ null, /* expensiveChecks */ true);\n          return function ngEventHandler(scope, element) {\n            element.on(eventName, function(event) {\n              var callback = function() {\n                fn(scope, {$event:event});\n              };\n              if (forceAsyncEvents[eventName] && $rootScope.$$phase) {\n                scope.$evalAsync(callback);\n              } else {\n                scope.$apply(callback);\n              }\n            });\n          };\n        }\n      };\n    }];\n  }\n);\n\n/**\n * @ngdoc directive\n * @name ngDblclick\n *\n * @description\n * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon\n * a dblclick. (The Event object is available as `$event`)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-dblclick=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on double click)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousedown\n *\n * @description\n * The ngMousedown directive allows you to specify custom behavior on mousedown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon\n * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mousedown=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse down)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseup\n *\n * @description\n * Specify custom behavior on mouseup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon\n * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseup=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse up)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngMouseover\n *\n * @description\n * Specify custom behavior on mouseover event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon\n * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseover=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse is over)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseenter\n *\n * @description\n * Specify custom behavior on mouseenter event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon\n * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseenter=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse enters)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseleave\n *\n * @description\n * Specify custom behavior on mouseleave event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon\n * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mouseleave=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse leaves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousemove\n *\n * @description\n * Specify custom behavior on mousemove event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon\n * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <button ng-mousemove=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse moves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeydown\n *\n * @description\n * Specify custom behavior on keydown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon\n * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-keydown=\"count = count + 1\" ng-init=\"count=0\">\n      key down count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeyup\n *\n * @description\n * Specify custom behavior on keyup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon\n * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n       <p>Typing in the input box below updates the key count</p>\n       <input ng-keyup=\"count = count + 1\" ng-init=\"count=0\"> key up count: {{count}}\n\n       <p>Typing in the input box below updates the keycode</p>\n       <input ng-keyup=\"event=$event\">\n       <p>event keyCode: {{ event.keyCode }}</p>\n       <p>event altKey: {{ event.altKey }}</p>\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeypress\n *\n * @description\n * Specify custom behavior on keypress event.\n *\n * @element ANY\n * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon\n * keypress. ({@link guide/expression#-event- Event object is available as `$event`}\n * and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-keypress=\"count = count + 1\" ng-init=\"count=0\">\n      key press count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSubmit\n *\n * @description\n * Enables binding angular expressions to onsubmit events.\n *\n * Additionally it prevents the default action (which for form means sending the request to the\n * server and reloading the current page), but only if the form does not contain `action`,\n * `data-action`, or `x-action` attributes.\n *\n * <div class=\"alert alert-warning\">\n * **Warning:** Be careful not to cause \"double-submission\" by using both the `ngClick` and\n * `ngSubmit` handlers together. See the\n * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}\n * for a detailed discussion of when `ngSubmit` may be triggered.\n * </div>\n *\n * @element form\n * @priority 0\n * @param {expression} ngSubmit {@link guide/expression Expression} to eval.\n * ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example module=\"submitExample\">\n     <file name=\"index.html\">\n      <script>\n        angular.module('submitExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.list = [];\n            $scope.text = 'hello';\n            $scope.submit = function() {\n              if ($scope.text) {\n                $scope.list.push(this.text);\n                $scope.text = '';\n              }\n            };\n          }]);\n      </script>\n      <form ng-submit=\"submit()\" ng-controller=\"ExampleController\">\n        Enter text and hit enter:\n        <input type=\"text\" ng-model=\"text\" name=\"text\" />\n        <input type=\"submit\" id=\"submit\" value=\"Submit\" />\n        <pre>list={{list}}</pre>\n      </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-submit', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n         expect(element(by.model('text')).getAttribute('value')).toBe('');\n       });\n       it('should ignore empty strings', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n        });\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngFocus\n *\n * @description\n * Specify custom behavior on focus event.\n *\n * Note: As the `focus` event is executed synchronously when calling `input.focus()`\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon\n * focus. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngBlur\n *\n * @description\n * Specify custom behavior on blur event.\n *\n * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when\n * an element has lost focus.\n *\n * Note: As the `blur` event is executed synchronously also during DOM manipulations\n * (e.g. removing a focussed input),\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon\n * blur. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngCopy\n *\n * @description\n * Specify custom behavior on copy event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon\n * copy. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-copy=\"copied=true\" ng-init=\"copied=false; value='copy me'\" ng-model=\"value\">\n      copied: {{copied}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngCut\n *\n * @description\n * Specify custom behavior on cut event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon\n * cut. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-cut=\"cut=true\" ng-init=\"cut=false; value='cut me'\" ng-model=\"value\">\n      cut: {{cut}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngPaste\n *\n * @description\n * Specify custom behavior on paste event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon\n * paste. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n      <input ng-paste=\"paste=true\" ng-init=\"paste=false\" placeholder='paste here'>\n      pasted: {{paste}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngIf\n * @restrict A\n * @multiElement\n *\n * @description\n * The `ngIf` directive removes or recreates a portion of the DOM tree based on an\n * {expression}. If the expression assigned to `ngIf` evaluates to a false\n * value then the element is removed from the DOM, otherwise a clone of the\n * element is reinserted into the DOM.\n *\n * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the\n * element in the DOM rather than changing its visibility via the `display` css property.  A common\n * case when this difference is significant is when using css selectors that rely on an element's\n * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.\n *\n * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope\n * is created when the element is restored.  The scope created within `ngIf` inherits from\n * its parent scope using\n * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).\n * An important implication of this is if `ngModel` is used within `ngIf` to bind to\n * a javascript primitive defined in the parent scope. In this case any modifications made to the\n * variable within the child scope will override (hide) the value in the parent scope.\n *\n * Also, `ngIf` recreates elements using their compiled state. An example of this behavior\n * is if an element's class attribute is directly modified after it's compiled, using something like\n * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element\n * the added class will be lost because the original compiled state is used to regenerate the element.\n *\n * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`\n * and `leave` effects.\n *\n * @animations\n * enter - happens just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container\n * leave - happens just before the `ngIf` contents are removed from the DOM\n *\n * @element ANY\n * @scope\n * @priority 600\n * @param {expression} ngIf If the {@link guide/expression expression} is falsy then\n *     the element is removed from the DOM tree. If it is truthy a copy of the compiled\n *     element is added to the DOM tree.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <label>Click me: <input type=\"checkbox\" ng-model=\"checked\" ng-init=\"checked=true\" /></label><br/>\n      Show when checked:\n      <span ng-if=\"checked\" class=\"animate-if\">\n        This is removed when the checkbox is unchecked.\n      </span>\n    </file>\n    <file name=\"animations.css\">\n      .animate-if {\n        background:white;\n        border:1px solid black;\n        padding:10px;\n      }\n\n      .animate-if.ng-enter, .animate-if.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n      }\n\n      .animate-if.ng-enter,\n      .animate-if.ng-leave.ng-leave-active {\n        opacity:0;\n      }\n\n      .animate-if.ng-leave,\n      .animate-if.ng-enter.ng-enter-active {\n        opacity:1;\n      }\n    </file>\n  </example>\n */\nvar ngIfDirective = ['$animate', function($animate) {\n  return {\n    multiElement: true,\n    transclude: 'element',\n    priority: 600,\n    terminal: true,\n    restrict: 'A',\n    $$tlb: true,\n    link: function($scope, $element, $attr, ctrl, $transclude) {\n        var block, childScope, previousElements;\n        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {\n\n          if (value) {\n            if (!childScope) {\n              $transclude(function(clone, newScope) {\n                childScope = newScope;\n                clone[clone.length++] = document.createComment(' end ngIf: ' + $attr.ngIf + ' ');\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block = {\n                  clone: clone\n                };\n                $animate.enter(clone, $element.parent(), $element);\n              });\n            }\n          } else {\n            if (previousElements) {\n              previousElements.remove();\n              previousElements = null;\n            }\n            if (childScope) {\n              childScope.$destroy();\n              childScope = null;\n            }\n            if (block) {\n              previousElements = getBlockNodes(block.clone);\n              $animate.leave(previousElements).then(function() {\n                previousElements = null;\n              });\n              block = null;\n            }\n          }\n        });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngInclude\n * @restrict ECA\n *\n * @description\n * Fetches, compiles and includes an external HTML fragment.\n *\n * By default, the template URL is restricted to the same domain and protocol as the\n * application document. This is done by calling {@link $sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols\n * you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or\n * {@link $sce#trustAsResourceUrl wrap them} as trusted values. Refer to Angular's {@link\n * ng.$sce Strict Contextual Escaping}.\n *\n * In addition, the browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy may further restrict whether the template is successfully loaded.\n * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`\n * access on some browsers.\n *\n * @animations\n * enter - animation is used to bring new content into the browser.\n * leave - animation is used to animate existing content away.\n *\n * The enter and leave animation occur concurrently.\n *\n * @scope\n * @priority 400\n *\n * @param {string} ngInclude|src angular expression evaluating to URL. If the source is a string constant,\n *                 make sure you wrap it in **single** quotes, e.g. `src=\"'myPartialTemplate.html'\"`.\n * @param {string=} onload Expression to evaluate when a new partial is loaded.\n *                  <div class=\"alert alert-warning\">\n *                  **Note:** When using onload on SVG elements in IE11, the browser will try to call\n *                  a function with the name on the window element, which will usually throw a\n *                  \"function is undefined\" error. To fix this, you can instead use `data-onload` or a\n *                  different form that {@link guide/directive#normalization matches} `onload`.\n *                  </div>\n   *\n * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the content is loaded.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.\n *\n * @example\n  <example module=\"includeExample\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n     <div ng-controller=\"ExampleController\">\n       <select ng-model=\"template\" ng-options=\"t.name for t in templates\">\n        <option value=\"\">(blank)</option>\n       </select>\n       url of the template: <code>{{template.url}}</code>\n       <hr/>\n       <div class=\"slide-animate-container\">\n         <div class=\"slide-animate\" ng-include=\"template.url\"></div>\n       </div>\n     </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('includeExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.templates =\n            [ { name: 'template1.html', url: 'template1.html'},\n              { name: 'template2.html', url: 'template2.html'} ];\n          $scope.template = $scope.templates[0];\n        }]);\n     </file>\n    <file name=\"template1.html\">\n      Content of template1.html\n    </file>\n    <file name=\"template2.html\">\n      Content of template2.html\n    </file>\n    <file name=\"animations.css\">\n      .slide-animate-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .slide-animate {\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter, .slide-animate.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n        display:block;\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter {\n        top:-50px;\n      }\n      .slide-animate.ng-enter.ng-enter-active {\n        top:0;\n      }\n\n      .slide-animate.ng-leave {\n        top:0;\n      }\n      .slide-animate.ng-leave.ng-leave-active {\n        top:50px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var templateSelect = element(by.model('template'));\n      var includeElem = element(by.css('[ng-include]'));\n\n      it('should load template1.html', function() {\n        expect(includeElem.getText()).toMatch(/Content of template1.html/);\n      });\n\n      it('should load template2.html', function() {\n        if (browser.params.browser == 'firefox') {\n          // Firefox can't handle using selects\n          // See https://github.com/angular/protractor/issues/480\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(2).click();\n        expect(includeElem.getText()).toMatch(/Content of template2.html/);\n      });\n\n      it('should change to blank', function() {\n        if (browser.params.browser == 'firefox') {\n          // Firefox can't handle using selects\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(0).click();\n        expect(includeElem.isPresent()).toBe(false);\n      });\n    </file>\n  </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentRequested\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted every time the ngInclude content is requested.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentLoaded\n * @eventType emit on the current ngInclude scope\n * @description\n * Emitted every time the ngInclude content is reloaded.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentError\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted when a template HTTP request yields an erroneous response (status < 200 || status > 299)\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\nvar ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',\n                  function($templateRequest,   $anchorScroll,   $animate) {\n  return {\n    restrict: 'ECA',\n    priority: 400,\n    terminal: true,\n    transclude: 'element',\n    controller: angular.noop,\n    compile: function(element, attr) {\n      var srcExp = attr.ngInclude || attr.src,\n          onloadExp = attr.onload || '',\n          autoScrollExp = attr.autoscroll;\n\n      return function(scope, $element, $attr, ctrl, $transclude) {\n        var changeCounter = 0,\n            currentScope,\n            previousElement,\n            currentElement;\n\n        var cleanupLastIncludeContent = function() {\n          if (previousElement) {\n            previousElement.remove();\n            previousElement = null;\n          }\n          if (currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if (currentElement) {\n            $animate.leave(currentElement).then(function() {\n              previousElement = null;\n            });\n            previousElement = currentElement;\n            currentElement = null;\n          }\n        };\n\n        scope.$watch(srcExp, function ngIncludeWatchAction(src) {\n          var afterAnimation = function() {\n            if (isDefined(autoScrollExp) && (!autoScrollExp || scope.$eval(autoScrollExp))) {\n              $anchorScroll();\n            }\n          };\n          var thisChangeId = ++changeCounter;\n\n          if (src) {\n            //set the 2nd param to true to ignore the template request error so that the inner\n            //contents and scope can be cleaned up.\n            $templateRequest(src, true).then(function(response) {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId !== changeCounter) return;\n              var newScope = scope.$new();\n              ctrl.template = response;\n\n              // Note: This will also link all children of ng-include that were contained in the original\n              // html. If that content contains controllers, ... they could pollute/change the scope.\n              // However, using ng-include on an element with additional content does not make sense...\n              // Note: We can't remove them in the cloneAttchFn of $transclude as that\n              // function is called before linking the content, which would apply child\n              // directives to non existing elements.\n              var clone = $transclude(newScope, function(clone) {\n                cleanupLastIncludeContent();\n                $animate.enter(clone, null, $element).then(afterAnimation);\n              });\n\n              currentScope = newScope;\n              currentElement = clone;\n\n              currentScope.$emit('$includeContentLoaded', src);\n              scope.$eval(onloadExp);\n            }, function() {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId === changeCounter) {\n                cleanupLastIncludeContent();\n                scope.$emit('$includeContentError', src);\n              }\n            });\n            scope.$emit('$includeContentRequested', src);\n          } else {\n            cleanupLastIncludeContent();\n            ctrl.template = null;\n          }\n        });\n      };\n    }\n  };\n}];\n\n// This directive is called during the $transclude call of the first `ngInclude` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngInclude\n// is called.\nvar ngIncludeFillContentDirective = ['$compile',\n  function($compile) {\n    return {\n      restrict: 'ECA',\n      priority: -400,\n      require: 'ngInclude',\n      link: function(scope, $element, $attr, ctrl) {\n        if (/SVG/.test($element[0].toString())) {\n          // WebKit: https://bugs.webkit.org/show_bug.cgi?id=135698 --- SVG elements do not\n          // support innerHTML, so detect this here and try to generate the contents\n          // specially.\n          $element.empty();\n          $compile(jqLiteBuildFragment(ctrl.template, document).childNodes)(scope,\n              function namespaceAdaptedClone(clone) {\n            $element.append(clone);\n          }, {futureParentElement: $element});\n          return;\n        }\n\n        $element.html(ctrl.template);\n        $compile($element.contents())(scope);\n      }\n    };\n  }];\n\n/**\n * @ngdoc directive\n * @name ngInit\n * @restrict AC\n *\n * @description\n * The `ngInit` directive allows you to evaluate an expression in the\n * current scope.\n *\n * <div class=\"alert alert-danger\">\n * This directive can be abused to add unnecessary amounts of logic into your templates.\n * There are only a few appropriate uses of `ngInit`, such as for aliasing special properties of\n * {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below; and for injecting data via\n * server side scripting. Besides these few cases, you should use {@link guide/controller controllers}\n * rather than `ngInit` to initialize values on a scope.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note**: If you have assignment in `ngInit` along with a {@link ng.$filter `filter`}, make\n * sure you have parentheses to ensure correct operator precedence:\n * <pre class=\"prettyprint\">\n * `<div ng-init=\"test1 = ($index | toString)\"></div>`\n * </pre>\n * </div>\n *\n * @priority 450\n *\n * @element ANY\n * @param {expression} ngInit {@link guide/expression Expression} to eval.\n *\n * @example\n   <example module=\"initExample\">\n     <file name=\"index.html\">\n   <script>\n     angular.module('initExample', [])\n       .controller('ExampleController', ['$scope', function($scope) {\n         $scope.list = [['a', 'b'], ['c', 'd']];\n       }]);\n   </script>\n   <div ng-controller=\"ExampleController\">\n     <div ng-repeat=\"innerList in list\" ng-init=\"outerIndex = $index\">\n       <div ng-repeat=\"value in innerList\" ng-init=\"innerIndex = $index\">\n          <span class=\"example-init\">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>\n       </div>\n     </div>\n   </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should alias index positions', function() {\n         var elements = element.all(by.css('.example-init'));\n         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');\n         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');\n         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');\n         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');\n       });\n     </file>\n   </example>\n */\nvar ngInitDirective = ngDirective({\n  priority: 450,\n  compile: function() {\n    return {\n      pre: function(scope, element, attrs) {\n        scope.$eval(attrs.ngInit);\n      }\n    };\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngList\n *\n * @description\n * Text input that converts between a delimited string and an array of strings. The default\n * delimiter is a comma followed by a space - equivalent to `ng-list=\", \"`. You can specify a custom\n * delimiter as the value of the `ngList` attribute - for example, `ng-list=\" | \"`.\n *\n * The behaviour of the directive is affected by the use of the `ngTrim` attribute.\n * * If `ngTrim` is set to `\"false\"` then whitespace around both the separator and each\n *   list item is respected. This implies that the user of the directive is responsible for\n *   dealing with whitespace but also allows you to use whitespace as a delimiter, such as a\n *   tab or newline character.\n * * Otherwise whitespace around the delimiter is ignored when splitting (although it is respected\n *   when joining the list items back together) and whitespace around each list item is stripped\n *   before it is added to the model.\n *\n * ### Example with Validation\n *\n * <example name=\"ngList-directive\" module=\"listExample\">\n *   <file name=\"app.js\">\n *      angular.module('listExample', [])\n *        .controller('ExampleController', ['$scope', function($scope) {\n *          $scope.names = ['morpheus', 'neo', 'trinity'];\n *        }]);\n *   </file>\n *   <file name=\"index.html\">\n *    <form name=\"myForm\" ng-controller=\"ExampleController\">\n *      <label>List: <input name=\"namesInput\" ng-model=\"names\" ng-list required></label>\n *      <span role=\"alert\">\n *        <span class=\"error\" ng-show=\"myForm.namesInput.$error.required\">\n *        Required!</span>\n *      </span>\n *      <br>\n *      <tt>names = {{names}}</tt><br/>\n *      <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>\n *      <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>\n *      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n *      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n *     </form>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var listInput = element(by.model('names'));\n *     var names = element(by.exactBinding('names'));\n *     var valid = element(by.binding('myForm.namesInput.$valid'));\n *     var error = element(by.css('span.error'));\n *\n *     it('should initialize to model', function() {\n *       expect(names.getText()).toContain('[\"morpheus\",\"neo\",\"trinity\"]');\n *       expect(valid.getText()).toContain('true');\n *       expect(error.getCssValue('display')).toBe('none');\n *     });\n *\n *     it('should be invalid if empty', function() {\n *       listInput.clear();\n *       listInput.sendKeys('');\n *\n *       expect(names.getText()).toContain('');\n *       expect(valid.getText()).toContain('false');\n *       expect(error.getCssValue('display')).not.toBe('none');\n *     });\n *   </file>\n * </example>\n *\n * ### Example - splitting on newline\n * <example name=\"ngList-directive-newlines\">\n *   <file name=\"index.html\">\n *    <textarea ng-model=\"list\" ng-list=\"&#10;\" ng-trim=\"false\"></textarea>\n *    <pre>{{ list | json }}</pre>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it(\"should split the text by newlines\", function() {\n *       var listInput = element(by.model('list'));\n *       var output = element(by.binding('list | json'));\n *       listInput.sendKeys('abc\\ndef\\nghi');\n *       expect(output.getText()).toContain('[\\n  \"abc\",\\n  \"def\",\\n  \"ghi\"\\n]');\n *     });\n *   </file>\n * </example>\n *\n * @element input\n * @param {string=} ngList optional delimiter that should be used to split the value.\n */\nvar ngListDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    require: 'ngModel',\n    link: function(scope, element, attr, ctrl) {\n      // We want to control whitespace trimming so we use this convoluted approach\n      // to access the ngList attribute, which doesn't pre-trim the attribute\n      var ngList = element.attr(attr.$attr.ngList) || ', ';\n      var trimValues = attr.ngTrim !== 'false';\n      var separator = trimValues ? trim(ngList) : ngList;\n\n      var parse = function(viewValue) {\n        // If the viewValue is invalid (say required but empty) it will be `undefined`\n        if (isUndefined(viewValue)) return;\n\n        var list = [];\n\n        if (viewValue) {\n          forEach(viewValue.split(separator), function(value) {\n            if (value) list.push(trimValues ? trim(value) : value);\n          });\n        }\n\n        return list;\n      };\n\n      ctrl.$parsers.push(parse);\n      ctrl.$formatters.push(function(value) {\n        if (isArray(value)) {\n          return value.join(ngList);\n        }\n\n        return undefined;\n      });\n\n      // Override the standard $isEmpty because an empty array means the input is empty.\n      ctrl.$isEmpty = function(value) {\n        return !value || !value.length;\n      };\n    }\n  };\n};\n\n/* global VALID_CLASS: true,\n  INVALID_CLASS: true,\n  PRISTINE_CLASS: true,\n  DIRTY_CLASS: true,\n  UNTOUCHED_CLASS: true,\n  TOUCHED_CLASS: true,\n*/\n\nvar VALID_CLASS = 'ng-valid',\n    INVALID_CLASS = 'ng-invalid',\n    PRISTINE_CLASS = 'ng-pristine',\n    DIRTY_CLASS = 'ng-dirty',\n    UNTOUCHED_CLASS = 'ng-untouched',\n    TOUCHED_CLASS = 'ng-touched',\n    PENDING_CLASS = 'ng-pending';\n\nvar ngModelMinErr = minErr('ngModel');\n\n/**\n * @ngdoc type\n * @name ngModel.NgModelController\n *\n * @property {*} $viewValue The actual value from the control's view. For `input` elements, this is a\n * String. See {@link ngModel.NgModelController#$setViewValue} for information about when the $viewValue\n * is set.\n * @property {*} $modelValue The value in the model that the control is bound to.\n * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever\n       the control reads value from the DOM. The functions are called in array order, each passing\n       its return value through to the next. The last return value is forwarded to the\n       {@link ngModel.NgModelController#$validators `$validators`} collection.\n\nParsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue\n`$viewValue`}.\n\nReturning `undefined` from a parser means a parse error occurred. In that case,\nno {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel`\nwill be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`}\nis set to `true`. The parse error is stored in `ngModel.$error.parse`.\n\n *\n * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever\n       the model value changes. The functions are called in reverse array order, each passing the value through to the\n       next. The last return value is used as the actual DOM value.\n       Used to format / convert values for display in the control.\n * ```js\n * function formatter(value) {\n *   if (value) {\n *     return value.toUpperCase();\n *   }\n * }\n * ngModel.$formatters.push(formatter);\n * ```\n *\n * @property {Object.<string, function>} $validators A collection of validators that are applied\n *      whenever the model value changes. The key value within the object refers to the name of the\n *      validator while the function refers to the validation operation. The validation operation is\n *      provided with the model value as an argument and must return a true or false value depending\n *      on the response of that validation.\n *\n * ```js\n * ngModel.$validators.validCharacters = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *   return /[0-9]+/.test(value) &&\n *          /[a-z]+/.test(value) &&\n *          /[A-Z]+/.test(value) &&\n *          /\\W+/.test(value);\n * };\n * ```\n *\n * @property {Object.<string, function>} $asyncValidators A collection of validations that are expected to\n *      perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided\n *      is expected to return a promise when it is run during the model validation process. Once the promise\n *      is delivered then the validation status will be set to true when fulfilled and false when rejected.\n *      When the asynchronous validators are triggered, each of the validators will run in parallel and the model\n *      value will only be updated once all validators have been fulfilled. As long as an asynchronous validator\n *      is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators\n *      will only run once all synchronous validators have passed.\n *\n * Please note that if $http is used then it is important that the server returns a success HTTP response code\n * in order to fulfill the validation and a status level of `4xx` in order to reject the validation.\n *\n * ```js\n * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *\n *   // Lookup user by username\n *   return $http.get('/api/users/' + value).\n *      then(function resolved() {\n *        //username exists, this means validation fails\n *        return $q.reject('exists');\n *      }, function rejected() {\n *        //username does not exist, therefore this validation passes\n *        return true;\n *      });\n * };\n * ```\n *\n * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever the\n *     view value has changed. It is called with no arguments, and its return value is ignored.\n *     This can be used in place of additional $watches against the model value.\n *\n * @property {Object} $error An object hash with all failing validator ids as keys.\n * @property {Object} $pending An object hash with all pending validator ids as keys.\n *\n * @property {boolean} $untouched True if control has not lost focus yet.\n * @property {boolean} $touched True if control has lost focus.\n * @property {boolean} $pristine True if user has not interacted with the control yet.\n * @property {boolean} $dirty True if user has already interacted with the control.\n * @property {boolean} $valid True if there is no error.\n * @property {boolean} $invalid True if at least one error on the control.\n * @property {string} $name The name attribute of the control.\n *\n * @description\n *\n * `NgModelController` provides API for the {@link ngModel `ngModel`} directive.\n * The controller contains services for data-binding, validation, CSS updates, and value formatting\n * and parsing. It purposefully does not contain any logic which deals with DOM rendering or\n * listening to DOM events.\n * Such DOM related logic should be provided by other directives which make use of\n * `NgModelController` for data-binding to control elements.\n * Angular provides this DOM logic for most {@link input `input`} elements.\n * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example\n * custom control example} that uses `ngModelController` to bind to `contenteditable` elements.\n *\n * @example\n * ### Custom Control Example\n * This example shows how to use `NgModelController` with a custom control to achieve\n * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)\n * collaborate together to achieve the desired result.\n *\n * `contenteditable` is an HTML5 attribute, which tells the browser to let the element\n * contents be edited in place by the user.\n *\n * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}\n * module to automatically remove \"bad\" content like inline event listener (e.g. `<span onclick=\"...\">`).\n * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks\n * that content using the `$sce` service.\n *\n * <example name=\"NgModelController\" module=\"customControl\" deps=\"angular-sanitize.js\">\n    <file name=\"style.css\">\n      [contenteditable] {\n        border: 1px solid black;\n        background-color: white;\n        min-height: 20px;\n      }\n\n      .ng-invalid {\n        border: 1px solid red;\n      }\n\n    </file>\n    <file name=\"script.js\">\n      angular.module('customControl', ['ngSanitize']).\n        directive('contenteditable', ['$sce', function($sce) {\n          return {\n            restrict: 'A', // only activate on element attribute\n            require: '?ngModel', // get a hold of NgModelController\n            link: function(scope, element, attrs, ngModel) {\n              if (!ngModel) return; // do nothing if no ng-model\n\n              // Specify how UI should be updated\n              ngModel.$render = function() {\n                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));\n              };\n\n              // Listen for change events to enable binding\n              element.on('blur keyup change', function() {\n                scope.$evalAsync(read);\n              });\n              read(); // initialize\n\n              // Write data to the model\n              function read() {\n                var html = element.html();\n                // When we clear the content editable the browser leaves a <br> behind\n                // If strip-br attribute is provided then we strip this out\n                if ( attrs.stripBr && html == '<br>' ) {\n                  html = '';\n                }\n                ngModel.$setViewValue(html);\n              }\n            }\n          };\n        }]);\n    </file>\n    <file name=\"index.html\">\n      <form name=\"myForm\">\n       <div contenteditable\n            name=\"myWidget\" ng-model=\"userContent\"\n            strip-br=\"true\"\n            required>Change me!</div>\n        <span ng-show=\"myForm.myWidget.$error.required\">Required!</span>\n       <hr>\n       <textarea ng-model=\"userContent\" aria-label=\"Dynamic textarea\"></textarea>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n    it('should data-bind and become invalid', function() {\n      if (browser.params.browser == 'safari' || browser.params.browser == 'firefox') {\n        // SafariDriver can't handle contenteditable\n        // and Firefox driver can't clear contenteditables very well\n        return;\n      }\n      var contentEditable = element(by.css('[contenteditable]'));\n      var content = 'Change me!';\n\n      expect(contentEditable.getText()).toEqual(content);\n\n      contentEditable.clear();\n      contentEditable.sendKeys(protractor.Key.BACK_SPACE);\n      expect(contentEditable.getText()).toEqual('');\n      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);\n    });\n    </file>\n * </example>\n *\n *\n */\nvar NgModelController = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$rootScope', '$q', '$interpolate',\n    function($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $rootScope, $q, $interpolate) {\n  this.$viewValue = Number.NaN;\n  this.$modelValue = Number.NaN;\n  this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity.\n  this.$validators = {};\n  this.$asyncValidators = {};\n  this.$parsers = [];\n  this.$formatters = [];\n  this.$viewChangeListeners = [];\n  this.$untouched = true;\n  this.$touched = false;\n  this.$pristine = true;\n  this.$dirty = false;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$error = {}; // keep invalid keys here\n  this.$$success = {}; // keep valid keys here\n  this.$pending = undefined; // keep pending keys here\n  this.$name = $interpolate($attr.name || '', false)($scope);\n  this.$$parentForm = nullFormCtrl;\n\n  var parsedNgModel = $parse($attr.ngModel),\n      parsedNgModelAssign = parsedNgModel.assign,\n      ngModelGet = parsedNgModel,\n      ngModelSet = parsedNgModelAssign,\n      pendingDebounce = null,\n      parserValid,\n      ctrl = this;\n\n  this.$$setOptions = function(options) {\n    ctrl.$options = options;\n    if (options && options.getterSetter) {\n      var invokeModelGetter = $parse($attr.ngModel + '()'),\n          invokeModelSetter = $parse($attr.ngModel + '($$$p)');\n\n      ngModelGet = function($scope) {\n        var modelValue = parsedNgModel($scope);\n        if (isFunction(modelValue)) {\n          modelValue = invokeModelGetter($scope);\n        }\n        return modelValue;\n      };\n      ngModelSet = function($scope, newValue) {\n        if (isFunction(parsedNgModel($scope))) {\n          invokeModelSetter($scope, {$$$p: ctrl.$modelValue});\n        } else {\n          parsedNgModelAssign($scope, ctrl.$modelValue);\n        }\n      };\n    } else if (!parsedNgModel.assign) {\n      throw ngModelMinErr('nonassign', \"Expression '{0}' is non-assignable. Element: {1}\",\n          $attr.ngModel, startingTag($element));\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$render\n   *\n   * @description\n   * Called when the view needs to be updated. It is expected that the user of the ng-model\n   * directive will implement this method.\n   *\n   * The `$render()` method is invoked in the following situations:\n   *\n   * * `$rollbackViewValue()` is called.  If we are rolling back the view value to the last\n   *   committed value then `$render()` is called to update the input control.\n   * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and\n   *   the `$viewValue` are different from last time.\n   *\n   * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of\n   * `$modelValue` and `$viewValue` are actually different from their previous value. If `$modelValue`\n   * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be\n   * invoked if you only change a property on the objects.\n   */\n  this.$render = noop;\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$isEmpty\n   *\n   * @description\n   * This is called when we need to determine if the value of an input is empty.\n   *\n   * For instance, the required directive does this to work out if the input has data or not.\n   *\n   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.\n   *\n   * You can override this for input directives whose concept of being empty is different from the\n   * default. The `checkboxInputType` directive does this because in its case a value of `false`\n   * implies empty.\n   *\n   * @param {*} value The value of the input to check for emptiness.\n   * @returns {boolean} True if `value` is \"empty\".\n   */\n  this.$isEmpty = function(value) {\n    return isUndefined(value) || value === '' || value === null || value !== value;\n  };\n\n  var currentValidationRunId = 0;\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setValidity\n   *\n   * @description\n   * Change the validity state, and notify the form.\n   *\n   * This method can be called within $parsers/$formatters or a custom validation implementation.\n   * However, in most cases it should be sufficient to use the `ngModel.$validators` and\n   * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically.\n   *\n   * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned\n   *        to either `$error[validationErrorKey]` or `$pending[validationErrorKey]`\n   *        (for unfulfilled `$asyncValidators`), so that it is available for data-binding.\n   *        The `validationErrorKey` should be in camelCase and will get converted into dash-case\n   *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`\n   *        class and can be bound to as  `{{someForm.someControl.$error.myError}}` .\n   * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined),\n   *                          or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n   *                          Skipped is used by Angular when validators do not run because of parse errors and\n   *                          when `$asyncValidators` do not run because any of the `$validators` failed.\n   */\n  addSetValidityMethod({\n    ctrl: this,\n    $element: $element,\n    set: function(object, property) {\n      object[property] = true;\n    },\n    unset: function(object, property) {\n      delete object[property];\n    },\n    $animate: $animate\n  });\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setPristine\n   *\n   * @description\n   * Sets the control to its pristine state.\n   *\n   * This method can be called to remove the `ng-dirty` class and set the control to its pristine\n   * state (`ng-pristine` class). A model is considered to be pristine when the control\n   * has not been changed from when first compiled.\n   */\n  this.$setPristine = function() {\n    ctrl.$dirty = false;\n    ctrl.$pristine = true;\n    $animate.removeClass($element, DIRTY_CLASS);\n    $animate.addClass($element, PRISTINE_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setDirty\n   *\n   * @description\n   * Sets the control to its dirty state.\n   *\n   * This method can be called to remove the `ng-pristine` class and set the control to its dirty\n   * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed\n   * from when first compiled.\n   */\n  this.$setDirty = function() {\n    ctrl.$dirty = true;\n    ctrl.$pristine = false;\n    $animate.removeClass($element, PRISTINE_CLASS);\n    $animate.addClass($element, DIRTY_CLASS);\n    ctrl.$$parentForm.$setDirty();\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setUntouched\n   *\n   * @description\n   * Sets the control to its untouched state.\n   *\n   * This method can be called to remove the `ng-touched` class and set the control to its\n   * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched\n   * by default, however this function can be used to restore that state if the model has\n   * already been touched by the user.\n   */\n  this.$setUntouched = function() {\n    ctrl.$touched = false;\n    ctrl.$untouched = true;\n    $animate.setClass($element, UNTOUCHED_CLASS, TOUCHED_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setTouched\n   *\n   * @description\n   * Sets the control to its touched state.\n   *\n   * This method can be called to remove the `ng-untouched` class and set the control to its\n   * touched state (`ng-touched` class). A model is considered to be touched when the user has\n   * first focused the control element and then shifted focus away from the control (blur event).\n   */\n  this.$setTouched = function() {\n    ctrl.$touched = true;\n    ctrl.$untouched = false;\n    $animate.setClass($element, TOUCHED_CLASS, UNTOUCHED_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$rollbackViewValue\n   *\n   * @description\n   * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`,\n   * which may be caused by a pending debounced event or because the input is waiting for a some\n   * future event.\n   *\n   * If you have an input that uses `ng-model-options` to set up debounced updates or updates that\n   * depend on special events such as blur, you can have a situation where there is a period when\n   * the `$viewValue` is out of sync with the ngModel's `$modelValue`.\n   *\n   * In this case, you can use `$rollbackViewValue()` to manually cancel the debounced / future update\n   * and reset the input to the last committed view value.\n   *\n   * It is also possible that you run into difficulties if you try to update the ngModel's `$modelValue`\n   * programmatically before these debounced/future events have resolved/occurred, because Angular's\n   * dirty checking mechanism is not able to tell whether the model has actually changed or not.\n   *\n   * The `$rollbackViewValue()` method should be called before programmatically changing the model of an\n   * input which may have such events pending. This is important in order to make sure that the\n   * input field will be updated with the new model value and any pending operations are cancelled.\n   *\n   * <example name=\"ng-model-cancel-update\" module=\"cancel-update-example\">\n   *   <file name=\"app.js\">\n   *     angular.module('cancel-update-example', [])\n   *\n   *     .controller('CancelUpdateController', ['$scope', function($scope) {\n   *       $scope.model = {};\n   *\n   *       $scope.setEmpty = function(e, value, rollback) {\n   *         if (e.keyCode == 27) {\n   *           e.preventDefault();\n   *           if (rollback) {\n   *             $scope.myForm[value].$rollbackViewValue();\n   *           }\n   *           $scope.model[value] = '';\n   *         }\n   *       };\n   *     }]);\n   *   </file>\n   *   <file name=\"index.html\">\n   *     <div ng-controller=\"CancelUpdateController\">\n   *        <p>Both of these inputs are only updated if they are blurred. Hitting escape should\n   *        empty them. Follow these steps and observe the difference:</p>\n   *       <ol>\n   *         <li>Type something in the input. You will see that the model is not yet updated</li>\n   *         <li>Press the Escape key.\n   *           <ol>\n   *             <li> In the first example, nothing happens, because the model is already '', and no\n   *             update is detected. If you blur the input, the model will be set to the current view.\n   *             </li>\n   *             <li> In the second example, the pending update is cancelled, and the input is set back\n   *             to the last committed view value (''). Blurring the input does nothing.\n   *             </li>\n   *           </ol>\n   *         </li>\n   *       </ol>\n   *\n   *       <form name=\"myForm\" ng-model-options=\"{ updateOn: 'blur' }\">\n   *         <div>\n   *        <p id=\"inputDescription1\">Without $rollbackViewValue():</p>\n   *         <input name=\"value1\" aria-describedby=\"inputDescription1\" ng-model=\"model.value1\"\n   *                ng-keydown=\"setEmpty($event, 'value1')\">\n   *         value1: \"{{ model.value1 }}\"\n   *         </div>\n   *\n   *         <div>\n   *        <p id=\"inputDescription2\">With $rollbackViewValue():</p>\n   *         <input name=\"value2\" aria-describedby=\"inputDescription2\" ng-model=\"model.value2\"\n   *                ng-keydown=\"setEmpty($event, 'value2', true)\">\n   *         value2: \"{{ model.value2 }}\"\n   *         </div>\n   *       </form>\n   *     </div>\n   *   </file>\n       <file name=\"style.css\">\n          div {\n            display: table-cell;\n          }\n          div:nth-child(1) {\n            padding-right: 30px;\n          }\n\n        </file>\n   * </example>\n   */\n  this.$rollbackViewValue = function() {\n    $timeout.cancel(pendingDebounce);\n    ctrl.$viewValue = ctrl.$$lastCommittedViewValue;\n    ctrl.$render();\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$validate\n   *\n   * @description\n   * Runs each of the registered validators (first synchronous validators and then\n   * asynchronous validators).\n   * If the validity changes to invalid, the model will be set to `undefined`,\n   * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`.\n   * If the validity changes to valid, it will set the model to the last available valid\n   * `$modelValue`, i.e. either the last parsed value or the last value set from the scope.\n   */\n  this.$validate = function() {\n    // ignore $validate before model is initialized\n    if (isNumber(ctrl.$modelValue) && isNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    var viewValue = ctrl.$$lastCommittedViewValue;\n    // Note: we use the $$rawModelValue as $modelValue might have been\n    // set to undefined during a view -> model update that found validation\n    // errors. We can't parse the view here, since that could change\n    // the model although neither viewValue nor the model on the scope changed\n    var modelValue = ctrl.$$rawModelValue;\n\n    var prevValid = ctrl.$valid;\n    var prevModelValue = ctrl.$modelValue;\n\n    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;\n\n    ctrl.$$runValidators(modelValue, viewValue, function(allValid) {\n      // If there was no change in validity, don't update the model\n      // This prevents changing an invalid modelValue to undefined\n      if (!allowInvalid && prevValid !== allValid) {\n        // Note: Don't check ctrl.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        ctrl.$modelValue = allValid ? modelValue : undefined;\n\n        if (ctrl.$modelValue !== prevModelValue) {\n          ctrl.$$writeModelToScope();\n        }\n      }\n    });\n\n  };\n\n  this.$$runValidators = function(modelValue, viewValue, doneCallback) {\n    currentValidationRunId++;\n    var localValidationRunId = currentValidationRunId;\n\n    // check parser error\n    if (!processParseErrors()) {\n      validationDone(false);\n      return;\n    }\n    if (!processSyncValidators()) {\n      validationDone(false);\n      return;\n    }\n    processAsyncValidators();\n\n    function processParseErrors() {\n      var errorKey = ctrl.$$parserName || 'parse';\n      if (isUndefined(parserValid)) {\n        setValidity(errorKey, null);\n      } else {\n        if (!parserValid) {\n          forEach(ctrl.$validators, function(v, name) {\n            setValidity(name, null);\n          });\n          forEach(ctrl.$asyncValidators, function(v, name) {\n            setValidity(name, null);\n          });\n        }\n        // Set the parse error last, to prevent unsetting it, should a $validators key == parserName\n        setValidity(errorKey, parserValid);\n        return parserValid;\n      }\n      return true;\n    }\n\n    function processSyncValidators() {\n      var syncValidatorsValid = true;\n      forEach(ctrl.$validators, function(validator, name) {\n        var result = validator(modelValue, viewValue);\n        syncValidatorsValid = syncValidatorsValid && result;\n        setValidity(name, result);\n      });\n      if (!syncValidatorsValid) {\n        forEach(ctrl.$asyncValidators, function(v, name) {\n          setValidity(name, null);\n        });\n        return false;\n      }\n      return true;\n    }\n\n    function processAsyncValidators() {\n      var validatorPromises = [];\n      var allValid = true;\n      forEach(ctrl.$asyncValidators, function(validator, name) {\n        var promise = validator(modelValue, viewValue);\n        if (!isPromiseLike(promise)) {\n          throw ngModelMinErr('nopromise',\n            \"Expected asynchronous validator to return a promise but got '{0}' instead.\", promise);\n        }\n        setValidity(name, undefined);\n        validatorPromises.push(promise.then(function() {\n          setValidity(name, true);\n        }, function(error) {\n          allValid = false;\n          setValidity(name, false);\n        }));\n      });\n      if (!validatorPromises.length) {\n        validationDone(true);\n      } else {\n        $q.all(validatorPromises).then(function() {\n          validationDone(allValid);\n        }, noop);\n      }\n    }\n\n    function setValidity(name, isValid) {\n      if (localValidationRunId === currentValidationRunId) {\n        ctrl.$setValidity(name, isValid);\n      }\n    }\n\n    function validationDone(allValid) {\n      if (localValidationRunId === currentValidationRunId) {\n\n        doneCallback(allValid);\n      }\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$commitViewValue\n   *\n   * @description\n   * Commit a pending update to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. this method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  this.$commitViewValue = function() {\n    var viewValue = ctrl.$viewValue;\n\n    $timeout.cancel(pendingDebounce);\n\n    // If the view value has not changed then we should just exit, except in the case where there is\n    // a native validator on the element. In this case the validation state may have changed even though\n    // the viewValue has stayed empty.\n    if (ctrl.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !ctrl.$$hasNativeValidators)) {\n      return;\n    }\n    ctrl.$$lastCommittedViewValue = viewValue;\n\n    // change to dirty\n    if (ctrl.$pristine) {\n      this.$setDirty();\n    }\n    this.$$parseAndValidate();\n  };\n\n  this.$$parseAndValidate = function() {\n    var viewValue = ctrl.$$lastCommittedViewValue;\n    var modelValue = viewValue;\n    parserValid = isUndefined(modelValue) ? undefined : true;\n\n    if (parserValid) {\n      for (var i = 0; i < ctrl.$parsers.length; i++) {\n        modelValue = ctrl.$parsers[i](modelValue);\n        if (isUndefined(modelValue)) {\n          parserValid = false;\n          break;\n        }\n      }\n    }\n    if (isNumber(ctrl.$modelValue) && isNaN(ctrl.$modelValue)) {\n      // ctrl.$modelValue has not been touched yet...\n      ctrl.$modelValue = ngModelGet($scope);\n    }\n    var prevModelValue = ctrl.$modelValue;\n    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;\n    ctrl.$$rawModelValue = modelValue;\n\n    if (allowInvalid) {\n      ctrl.$modelValue = modelValue;\n      writeToModelIfNeeded();\n    }\n\n    // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date.\n    // This can happen if e.g. $setViewValue is called from inside a parser\n    ctrl.$$runValidators(modelValue, ctrl.$$lastCommittedViewValue, function(allValid) {\n      if (!allowInvalid) {\n        // Note: Don't check ctrl.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        ctrl.$modelValue = allValid ? modelValue : undefined;\n        writeToModelIfNeeded();\n      }\n    });\n\n    function writeToModelIfNeeded() {\n      if (ctrl.$modelValue !== prevModelValue) {\n        ctrl.$$writeModelToScope();\n      }\n    }\n  };\n\n  this.$$writeModelToScope = function() {\n    ngModelSet($scope, ctrl.$modelValue);\n    forEach(ctrl.$viewChangeListeners, function(listener) {\n      try {\n        listener();\n      } catch (e) {\n        $exceptionHandler(e);\n      }\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setViewValue\n   *\n   * @description\n   * Update the view value.\n   *\n   * This method should be called when a control wants to change the view value; typically,\n   * this is done from within a DOM event handler. For example, the {@link ng.directive:input input}\n   * directive calls it when the value of the input changes and {@link ng.directive:select select}\n   * calls it when an option is selected.\n   *\n   * When `$setViewValue` is called, the new `value` will be staged for committing through the `$parsers`\n   * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged\n   * value sent directly for processing, finally to be applied to `$modelValue` and then the\n   * **expression** specified in the `ng-model` attribute. Lastly, all the registered change listeners,\n   * in the `$viewChangeListeners` list, are called.\n   *\n   * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn`\n   * and the `default` trigger is not listed, all those actions will remain pending until one of the\n   * `updateOn` events is triggered on the DOM element.\n   * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions}\n   * directive is used with a custom debounce for this particular event.\n   * Note that a `$digest` is only triggered once the `updateOn` events are fired, or if `debounce`\n   * is specified, once the timer runs out.\n   *\n   * When used with standard inputs, the view value will always be a string (which is in some cases\n   * parsed into another type, such as a `Date` object for `input[date]`.)\n   * However, custom controls might also pass objects to this method. In this case, we should make\n   * a copy of the object before passing it to `$setViewValue`. This is because `ngModel` does not\n   * perform a deep watch of objects, it only looks for a change of identity. If you only change\n   * the property of the object then ngModel will not realise that the object has changed and\n   * will not invoke the `$parsers` and `$validators` pipelines. For this reason, you should\n   * not change properties of the copy once it has been passed to `$setViewValue`.\n   * Otherwise you may cause the model value on the scope to change incorrectly.\n   *\n   * <div class=\"alert alert-info\">\n   * In any case, the value passed to the method should always reflect the current value\n   * of the control. For example, if you are calling `$setViewValue` for an input element,\n   * you should pass the input DOM value. Otherwise, the control and the scope model become\n   * out of sync. It's also important to note that `$setViewValue` does not call `$render` or change\n   * the control's DOM value in any way. If we want to change the control's DOM value\n   * programmatically, we should update the `ngModel` scope expression. Its new value will be\n   * picked up by the model controller, which will run it through the `$formatters`, `$render` it\n   * to update the DOM, and finally call `$validate` on it.\n   * </div>\n   *\n   * @param {*} value value from the view.\n   * @param {string} trigger Event that triggered the update.\n   */\n  this.$setViewValue = function(value, trigger) {\n    ctrl.$viewValue = value;\n    if (!ctrl.$options || ctrl.$options.updateOnDefault) {\n      ctrl.$$debounceViewValueCommit(trigger);\n    }\n  };\n\n  this.$$debounceViewValueCommit = function(trigger) {\n    var debounceDelay = 0,\n        options = ctrl.$options,\n        debounce;\n\n    if (options && isDefined(options.debounce)) {\n      debounce = options.debounce;\n      if (isNumber(debounce)) {\n        debounceDelay = debounce;\n      } else if (isNumber(debounce[trigger])) {\n        debounceDelay = debounce[trigger];\n      } else if (isNumber(debounce['default'])) {\n        debounceDelay = debounce['default'];\n      }\n    }\n\n    $timeout.cancel(pendingDebounce);\n    if (debounceDelay) {\n      pendingDebounce = $timeout(function() {\n        ctrl.$commitViewValue();\n      }, debounceDelay);\n    } else if ($rootScope.$$phase) {\n      ctrl.$commitViewValue();\n    } else {\n      $scope.$apply(function() {\n        ctrl.$commitViewValue();\n      });\n    }\n  };\n\n  // model -> value\n  // Note: we cannot use a normal scope.$watch as we want to detect the following:\n  // 1. scope value is 'a'\n  // 2. user enters 'b'\n  // 3. ng-change kicks in and reverts scope value to 'a'\n  //    -> scope value did not change since the last digest as\n  //       ng-change executes in apply phase\n  // 4. view should be changed back to 'a'\n  $scope.$watch(function ngModelWatch() {\n    var modelValue = ngModelGet($scope);\n\n    // if scope model value and ngModel value are out of sync\n    // TODO(perf): why not move this to the action fn?\n    if (modelValue !== ctrl.$modelValue &&\n       // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator\n       (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue)\n    ) {\n      ctrl.$modelValue = ctrl.$$rawModelValue = modelValue;\n      parserValid = undefined;\n\n      var formatters = ctrl.$formatters,\n          idx = formatters.length;\n\n      var viewValue = modelValue;\n      while (idx--) {\n        viewValue = formatters[idx](viewValue);\n      }\n      if (ctrl.$viewValue !== viewValue) {\n        ctrl.$viewValue = ctrl.$$lastCommittedViewValue = viewValue;\n        ctrl.$render();\n\n        ctrl.$$runValidators(modelValue, viewValue, noop);\n      }\n    }\n\n    return modelValue;\n  });\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngModel\n *\n * @element input\n * @priority 1\n *\n * @description\n * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a\n * property on the scope using {@link ngModel.NgModelController NgModelController},\n * which is created and exposed by this directive.\n *\n * `ngModel` is responsible for:\n *\n * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`\n *   require.\n * - Providing validation behavior (i.e. required, number, email, url).\n * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors).\n * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`, `ng-untouched`) including animations.\n * - Registering the control with its parent {@link ng.directive:form form}.\n *\n * Note: `ngModel` will try to bind to the property given by evaluating the expression on the\n * current scope. If the property doesn't already exist on this scope, it will be created\n * implicitly and added to the scope.\n *\n * For best practices on using `ngModel`, see:\n *\n *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)\n *\n * For basic examples, how to use `ngModel`, see:\n *\n *  - {@link ng.directive:input input}\n *    - {@link input[text] text}\n *    - {@link input[checkbox] checkbox}\n *    - {@link input[radio] radio}\n *    - {@link input[number] number}\n *    - {@link input[email] email}\n *    - {@link input[url] url}\n *    - {@link input[date] date}\n *    - {@link input[datetime-local] datetime-local}\n *    - {@link input[time] time}\n *    - {@link input[month] month}\n *    - {@link input[week] week}\n *  - {@link ng.directive:select select}\n *  - {@link ng.directive:textarea textarea}\n *\n * # Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding inputs to models that are objects (e.g. `Date`) or collections (e.g. arrays). If only properties of the\n * object or collection change, `ngModel` will not be notified and so the input will not be  re-rendered.\n *\n * The model must be assigned an entirely new object or collection before a re-rendering will occur.\n *\n * Some directives have options that will cause them to use a custom `$watchCollection` on the model expression\n * - for example, `ngOptions` will do so when a `track by` clause is included in the comprehension expression or\n * if the select is given the `multiple` attribute.\n *\n * The `$watchCollection()` method only does a shallow comparison, meaning that changing properties deeper than the\n * first level of the object (or only changing the properties of an item in the collection if it's an array) will still\n * not trigger a re-rendering of the model.\n *\n * # CSS classes\n * The following CSS classes are added and removed on the associated input/select/textarea element\n * depending on the validity of the model.\n *\n *  - `ng-valid`: the model is valid\n *  - `ng-invalid`: the model is invalid\n *  - `ng-valid-[key]`: for each valid key added by `$setValidity`\n *  - `ng-invalid-[key]`: for each invalid key added by `$setValidity`\n *  - `ng-pristine`: the control hasn't been interacted with yet\n *  - `ng-dirty`: the control has been interacted with\n *  - `ng-touched`: the control has been blurred\n *  - `ng-untouched`: the control hasn't been blurred\n *  - `ng-pending`: any `$asyncValidators` are unfulfilled\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n * ## Animation Hooks\n *\n * Animations within models are triggered when any of the associated CSS classes are added and removed\n * on the input element which is attached to the model. These classes are: `.ng-pristine`, `.ng-dirty`,\n * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.\n * The animations that are triggered within ngModel are similar to how they work in ngClass and\n * animations can be hooked into using CSS transitions, keyframes as well as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style an input element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-input {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-input.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n * <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"inputExample\">\n     <file name=\"index.html\">\n       <script>\n        angular.module('inputExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.val = '1';\n          }]);\n       </script>\n       <style>\n         .my-input {\n           transition:all linear 0.5s;\n           background: transparent;\n         }\n         .my-input.ng-invalid {\n           color:white;\n           background: red;\n         }\n       </style>\n       <p id=\"inputDescription\">\n        Update input to see transitions when valid/invalid.\n        Integer is a valid value.\n       </p>\n       <form name=\"testForm\" ng-controller=\"ExampleController\">\n         <input ng-model=\"val\" ng-pattern=\"/^\\d+$/\" name=\"anim\" class=\"my-input\"\n                aria-describedby=\"inputDescription\" />\n       </form>\n     </file>\n * </example>\n *\n * ## Binding to a getter/setter\n *\n * Sometimes it's helpful to bind `ngModel` to a getter/setter function.  A getter/setter is a\n * function that returns a representation of the model when called with zero arguments, and sets\n * the internal state of a model when called with an argument. It's sometimes useful to use this\n * for models that have an internal representation that's different from what the model exposes\n * to the view.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's best to keep getters fast because Angular is likely to call them more\n * frequently than other parts of your code.\n * </div>\n *\n * You use this behavior by adding `ng-model-options=\"{ getterSetter: true }\"` to an element that\n * has `ng-model` attached to it. You can also add `ng-model-options=\"{ getterSetter: true }\"` to\n * a `<form>`, which will enable this behavior for all `<input>`s within it. See\n * {@link ng.directive:ngModelOptions `ngModelOptions`} for more.\n *\n * The following example shows how to use `ngModel` with a getter/setter:\n *\n * @example\n * <example name=\"ngModel-getter-setter\" module=\"getterSetterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <form name=\"userForm\">\n           <label>Name:\n             <input type=\"text\" name=\"userName\"\n                    ng-model=\"user.name\"\n                    ng-model-options=\"{ getterSetter: true }\" />\n           </label>\n         </form>\n         <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n       </div>\n     </file>\n     <file name=\"app.js\">\n       angular.module('getterSetterExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var _name = 'Brian';\n           $scope.user = {\n             name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n             }\n           };\n         }]);\n     </file>\n * </example>\n */\nvar ngModelDirective = ['$rootScope', function($rootScope) {\n  return {\n    restrict: 'A',\n    require: ['ngModel', '^?form', '^?ngModelOptions'],\n    controller: NgModelController,\n    // Prelink needs to run before any input directive\n    // so that we can set the NgModelOptions in NgModelController\n    // before anyone else uses it.\n    priority: 1,\n    compile: function ngModelCompile(element) {\n      // Setup initial state of the control\n      element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS);\n\n      return {\n        pre: function ngModelPreLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0],\n              formCtrl = ctrls[1] || modelCtrl.$$parentForm;\n\n          modelCtrl.$$setOptions(ctrls[2] && ctrls[2].$options);\n\n          // notify others, especially parent forms\n          formCtrl.$addControl(modelCtrl);\n\n          attr.$observe('name', function(newValue) {\n            if (modelCtrl.$name !== newValue) {\n              modelCtrl.$$parentForm.$$renameControl(modelCtrl, newValue);\n            }\n          });\n\n          scope.$on('$destroy', function() {\n            modelCtrl.$$parentForm.$removeControl(modelCtrl);\n          });\n        },\n        post: function ngModelPostLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0];\n          if (modelCtrl.$options && modelCtrl.$options.updateOn) {\n            element.on(modelCtrl.$options.updateOn, function(ev) {\n              modelCtrl.$$debounceViewValueCommit(ev && ev.type);\n            });\n          }\n\n          element.on('blur', function(ev) {\n            if (modelCtrl.$touched) return;\n\n            if ($rootScope.$$phase) {\n              scope.$evalAsync(modelCtrl.$setTouched);\n            } else {\n              scope.$apply(modelCtrl.$setTouched);\n            }\n          });\n        }\n      };\n    }\n  };\n}];\n\nvar DEFAULT_REGEXP = /(\\s+|^)default(\\s+|$)/;\n\n/**\n * @ngdoc directive\n * @name ngModelOptions\n *\n * @description\n * Allows tuning how model updates are done. Using `ngModelOptions` you can specify a custom list of\n * events that will trigger a model update and/or a debouncing delay so that the actual update only\n * takes place when a timer expires; this timer will be reset after another change takes place.\n *\n * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might\n * be different from the value in the actual model. This means that if you update the model you\n * should also invoke {@link ngModel.NgModelController `$rollbackViewValue`} on the relevant input field in\n * order to make sure it is synchronized with the model and that any debounced action is canceled.\n *\n * The easiest way to reference the control's {@link ngModel.NgModelController `$rollbackViewValue`}\n * method is by making sure the input is placed inside a form that has a `name` attribute. This is\n * important because `form` controllers are published to the related scope under the name in their\n * `name` attribute.\n *\n * Any pending changes will take place immediately when an enclosing form is submitted via the\n * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * `ngModelOptions` has an effect on the element it's declared on and its descendants.\n *\n * @param {Object} ngModelOptions options to apply to the current model. Valid keys are:\n *   - `updateOn`: string specifying which event should the input be bound to. You can set several\n *     events using an space delimited list. There is a special event called `default` that\n *     matches the default events belonging of the control.\n *   - `debounce`: integer value which contains the debounce model update value in milliseconds. A\n *     value of 0 triggers an immediate update. If an object is supplied instead, you can specify a\n *     custom value for each event. For example:\n *     `ng-model-options=\"{ updateOn: 'default blur', debounce: { 'default': 500, 'blur': 0 } }\"`\n *   - `allowInvalid`: boolean value which indicates that the model can be set with values that did\n *     not validate correctly instead of the default behavior of setting the model to undefined.\n *   - `getterSetter`: boolean value which determines whether or not to treat functions bound to\n       `ngModel` as getters/setters.\n *   - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for\n *     `<input type=\"date\">`, `<input type=\"time\">`, ... . It understands UTC/GMT and the\n *     continental US time zone abbreviations, but for general use, use a time zone offset, for\n *     example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *     If not specified, the timezone of the browser will be used.\n *\n * @example\n\n  The following example shows how to override immediate updates. Changes on the inputs within the\n  form will update the model only when the control loses focus (blur event). If `escape` key is\n  pressed while the input field is focused, the value is reset to the value in the current model.\n\n  <example name=\"ngModelOptions-directive-blur\" module=\"optionsExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          <label>Name:\n            <input type=\"text\" name=\"userName\"\n                   ng-model=\"user.name\"\n                   ng-model-options=\"{ updateOn: 'blur' }\"\n                   ng-keyup=\"cancel($event)\" />\n          </label><br />\n          <label>Other data:\n            <input type=\"text\" ng-model=\"user.data\" />\n          </label><br />\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n        <pre>user.data = <span ng-bind=\"user.data\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.user = { name: 'John', data: '' };\n\n          $scope.cancel = function(e) {\n            if (e.keyCode == 27) {\n              $scope.userForm.userName.$rollbackViewValue();\n            }\n          };\n        }]);\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var model = element(by.binding('user.name'));\n      var input = element(by.model('user.name'));\n      var other = element(by.model('user.data'));\n\n      it('should allow custom events', function() {\n        input.sendKeys(' Doe');\n        input.click();\n        expect(model.getText()).toEqual('John');\n        other.click();\n        expect(model.getText()).toEqual('John Doe');\n      });\n\n      it('should $rollbackViewValue when model changes', function() {\n        input.sendKeys(' Doe');\n        expect(input.getAttribute('value')).toEqual('John Doe');\n        input.sendKeys(protractor.Key.ESCAPE);\n        expect(input.getAttribute('value')).toEqual('John');\n        other.click();\n        expect(model.getText()).toEqual('John');\n      });\n    </file>\n  </example>\n\n  This one shows how to debounce model changes. Model will be updated only 1 sec after last change.\n  If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty.\n\n  <example name=\"ngModelOptions-directive-debounce\" module=\"optionsExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          <label>Name:\n            <input type=\"text\" name=\"userName\"\n                   ng-model=\"user.name\"\n                   ng-model-options=\"{ debounce: 1000 }\" />\n          </label>\n          <button ng-click=\"userForm.userName.$rollbackViewValue(); user.name=''\">Clear</button>\n          <br />\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.user = { name: 'Igor' };\n        }]);\n    </file>\n  </example>\n\n  This one shows how to bind to getter/setters:\n\n  <example name=\"ngModelOptions-directive-getter-setter\" module=\"getterSetterExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          <label>Name:\n            <input type=\"text\" name=\"userName\"\n                   ng-model=\"user.name\"\n                   ng-model-options=\"{ getterSetter: true }\" />\n          </label>\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('getterSetterExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          var _name = 'Brian';\n          $scope.user = {\n            name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n            }\n          };\n        }]);\n    </file>\n  </example>\n */\nvar ngModelOptionsDirective = function() {\n  return {\n    restrict: 'A',\n    controller: ['$scope', '$attrs', function($scope, $attrs) {\n      var that = this;\n      this.$options = copy($scope.$eval($attrs.ngModelOptions));\n      // Allow adding/overriding bound events\n      if (isDefined(this.$options.updateOn)) {\n        this.$options.updateOnDefault = false;\n        // extract \"default\" pseudo-event from list of events that can trigger a model update\n        this.$options.updateOn = trim(this.$options.updateOn.replace(DEFAULT_REGEXP, function() {\n          that.$options.updateOnDefault = true;\n          return ' ';\n        }));\n      } else {\n        this.$options.updateOnDefault = true;\n      }\n    }]\n  };\n};\n\n\n\n// helper methods\nfunction addSetValidityMethod(context) {\n  var ctrl = context.ctrl,\n      $element = context.$element,\n      classCache = {},\n      set = context.set,\n      unset = context.unset,\n      $animate = context.$animate;\n\n  classCache[INVALID_CLASS] = !(classCache[VALID_CLASS] = $element.hasClass(VALID_CLASS));\n\n  ctrl.$setValidity = setValidity;\n\n  function setValidity(validationErrorKey, state, controller) {\n    if (isUndefined(state)) {\n      createAndSet('$pending', validationErrorKey, controller);\n    } else {\n      unsetAndCleanup('$pending', validationErrorKey, controller);\n    }\n    if (!isBoolean(state)) {\n      unset(ctrl.$error, validationErrorKey, controller);\n      unset(ctrl.$$success, validationErrorKey, controller);\n    } else {\n      if (state) {\n        unset(ctrl.$error, validationErrorKey, controller);\n        set(ctrl.$$success, validationErrorKey, controller);\n      } else {\n        set(ctrl.$error, validationErrorKey, controller);\n        unset(ctrl.$$success, validationErrorKey, controller);\n      }\n    }\n    if (ctrl.$pending) {\n      cachedToggleClass(PENDING_CLASS, true);\n      ctrl.$valid = ctrl.$invalid = undefined;\n      toggleValidationCss('', null);\n    } else {\n      cachedToggleClass(PENDING_CLASS, false);\n      ctrl.$valid = isObjectEmpty(ctrl.$error);\n      ctrl.$invalid = !ctrl.$valid;\n      toggleValidationCss('', ctrl.$valid);\n    }\n\n    // re-read the state as the set/unset methods could have\n    // combined state in ctrl.$error[validationError] (used for forms),\n    // where setting/unsetting only increments/decrements the value,\n    // and does not replace it.\n    var combinedState;\n    if (ctrl.$pending && ctrl.$pending[validationErrorKey]) {\n      combinedState = undefined;\n    } else if (ctrl.$error[validationErrorKey]) {\n      combinedState = false;\n    } else if (ctrl.$$success[validationErrorKey]) {\n      combinedState = true;\n    } else {\n      combinedState = null;\n    }\n\n    toggleValidationCss(validationErrorKey, combinedState);\n    ctrl.$$parentForm.$setValidity(validationErrorKey, combinedState, ctrl);\n  }\n\n  function createAndSet(name, value, controller) {\n    if (!ctrl[name]) {\n      ctrl[name] = {};\n    }\n    set(ctrl[name], value, controller);\n  }\n\n  function unsetAndCleanup(name, value, controller) {\n    if (ctrl[name]) {\n      unset(ctrl[name], value, controller);\n    }\n    if (isObjectEmpty(ctrl[name])) {\n      ctrl[name] = undefined;\n    }\n  }\n\n  function cachedToggleClass(className, switchValue) {\n    if (switchValue && !classCache[className]) {\n      $animate.addClass($element, className);\n      classCache[className] = true;\n    } else if (!switchValue && classCache[className]) {\n      $animate.removeClass($element, className);\n      classCache[className] = false;\n    }\n  }\n\n  function toggleValidationCss(validationErrorKey, isValid) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n\n    cachedToggleClass(VALID_CLASS + validationErrorKey, isValid === true);\n    cachedToggleClass(INVALID_CLASS + validationErrorKey, isValid === false);\n  }\n}\n\nfunction isObjectEmpty(obj) {\n  if (obj) {\n    for (var prop in obj) {\n      if (obj.hasOwnProperty(prop)) {\n        return false;\n      }\n    }\n  }\n  return true;\n}\n\n/**\n * @ngdoc directive\n * @name ngNonBindable\n * @restrict AC\n * @priority 1000\n *\n * @description\n * The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current\n * DOM element. This is useful if the element contains what appears to be Angular directives and\n * bindings but which should be ignored by Angular. This could be the case if you have a site that\n * displays snippets of code, for instance.\n *\n * @element ANY\n *\n * @example\n * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,\n * but the one wrapped in `ngNonBindable` is left alone.\n *\n * @example\n    <example>\n      <file name=\"index.html\">\n        <div>Normal: {{1 + 2}}</div>\n        <div ng-non-bindable>Ignored: {{1 + 2}}</div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-non-bindable', function() {\n         expect(element(by.binding('1 + 2')).getText()).toContain('3');\n         expect(element.all(by.css('div')).last().getText()).toMatch(/1 \\+ 2/);\n       });\n      </file>\n    </example>\n */\nvar ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });\n\n/* global jqLiteRemove */\n\nvar ngOptionsMinErr = minErr('ngOptions');\n\n/**\n * @ngdoc directive\n * @name ngOptions\n * @restrict A\n *\n * @description\n *\n * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`\n * elements for the `<select>` element using the array or object obtained by evaluating the\n * `ngOptions` comprehension expression.\n *\n * In many cases, `ngRepeat` can be used on `<option>` elements instead of `ngOptions` to achieve a\n * similar result. However, `ngOptions` provides some benefits such as reducing memory and\n * increasing speed by not creating a new scope for each repeated instance, as well as providing\n * more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression. `ngOptions` should be used when the `<select>` model needs to be bound\n *  to a non-string value. This is because an option element can only be bound to string values at\n * present.\n *\n * When an item in the `<select>` menu is selected, the array element or object property\n * represented by the selected option will be bound to the model identified by the `ngModel`\n * directive.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding the select to a model that is an object or a collection.\n *\n * One issue occurs if you want to preselect an option. For example, if you set\n * the model to an object that is equal to an object in your collection, `ngOptions` won't be able to set the selection,\n * because the objects are not identical. So by default, you should always reference the item in your collection\n * for preselections, e.g.: `$scope.selected = $scope.collection[3]`.\n *\n * Another solution is to use a `track by` clause, because then `ngOptions` will track the identity\n * of the item not by reference, but by the result of the `track by` expression. For example, if your\n * collection items have an id property, you would `track by item.id`.\n *\n * A different issue with objects or collections is that ngModel won't detect if an object property or\n * a collection item changes. For that reason, `ngOptions` additionally watches the model using\n * `$watchCollection`, when the expression contains a `track by` clause or the the select has the `multiple` attribute.\n * This allows ngOptions to trigger a re-rendering of the options even if the actual object/collection\n * has not changed identity, but only a property on the object or an item in the collection changes.\n *\n * Note that `$watchCollection` does a shallow comparison of the properties of the object (or the items in the collection\n * if the model is an array). This means that changing a property deeper than the first level inside the\n * object/collection will not trigger a re-rendering.\n *\n * ## `select` **`as`**\n *\n * Using `select` **`as`** will bind the result of the `select` expression to the model, but\n * the value of the `<select>` and `<option>` html elements will be either the index (for array data sources)\n * or property name (for object data sources) of the value within the collection. If a **`track by`** expression\n * is used, the result of that expression will be set as the value of the `option` and `select` elements.\n *\n *\n * ### `select` **`as`** and **`track by`**\n *\n * <div class=\"alert alert-warning\">\n * Be careful when using `select` **`as`** and **`track by`** in the same expression.\n * </div>\n *\n * Given this array of items on the $scope:\n *\n * ```js\n * $scope.items = [{\n *   id: 1,\n *   label: 'aLabel',\n *   subItem: { name: 'aSubItem' }\n * }, {\n *   id: 2,\n *   label: 'bLabel',\n *   subItem: { name: 'bSubItem' }\n * }];\n * ```\n *\n * This will work:\n *\n * ```html\n * <select ng-options=\"item as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0];\n * ```\n *\n * but this will not work:\n *\n * ```html\n * <select ng-options=\"item.subItem as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0].subItem;\n * ```\n *\n * In both examples, the **`track by`** expression is applied successfully to each `item` in the\n * `items` array. Because the selected option has been set programmatically in the controller, the\n * **`track by`** expression is also applied to the `ngModel` value. In the first example, the\n * `ngModel` value is `items[0]` and the **`track by`** expression evaluates to `items[0].id` with\n * no issue. In the second example, the `ngModel` value is `items[0].subItem` and the **`track by`**\n * expression evaluates to `items[0].subItem.id` (which is undefined). As a result, the model value\n * is not matched against any `<option>` and the `<select>` appears as having no selected value.\n *\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required The control is considered valid only if value is entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {comprehension_expression=} ngOptions in one of the following forms:\n *\n *   * for array data sources:\n *     * `label` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`for`** `value` **`in`** `array` | orderBy:`orderexpr` **`track by`** `trackexpr`\n *        (for including a filter with `track by`)\n *   * for object data sources:\n *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `label` **`disable when`** `disable` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`group by`** `group`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`disable when`** `disable`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *\n * Where:\n *\n *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.\n *   * `value`: local variable which will refer to each item in the `array` or each property value\n *      of `object` during iteration.\n *   * `key`: local variable which will refer to a property name in `object` during iteration.\n *   * `label`: The result of this expression will be the label for `<option>` element. The\n *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).\n *   * `select`: The result of this expression will be bound to the model of the parent `<select>`\n *      element. If not specified, `select` expression will default to `value`.\n *   * `group`: The result of this expression will be used to group options using the `<optgroup>`\n *      DOM element.\n *   * `disable`: The result of this expression will be used to disable the rendered `<option>`\n *      element. Return `true` to disable.\n *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be\n *      used to identify the objects in the array. The `trackexpr` will most likely refer to the\n *     `value` variable (e.g. `value.propertyName`). With this the selection is preserved\n *      even when the options are recreated (e.g. reloaded from the server).\n *\n * @example\n    <example module=\"selectExample\">\n      <file name=\"index.html\">\n        <script>\n        angular.module('selectExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.colors = [\n              {name:'black', shade:'dark'},\n              {name:'white', shade:'light', notAnOption: true},\n              {name:'red', shade:'dark'},\n              {name:'blue', shade:'dark', notAnOption: true},\n              {name:'yellow', shade:'light', notAnOption: false}\n            ];\n            $scope.myColor = $scope.colors[2]; // red\n          }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <ul>\n            <li ng-repeat=\"color in colors\">\n              <label>Name: <input ng-model=\"color.name\"></label>\n              <label><input type=\"checkbox\" ng-model=\"color.notAnOption\"> Disabled?</label>\n              <button ng-click=\"colors.splice($index, 1)\" aria-label=\"Remove\">X</button>\n            </li>\n            <li>\n              <button ng-click=\"colors.push({})\">add</button>\n            </li>\n          </ul>\n          <hr/>\n          <label>Color (null not allowed):\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\"></select>\n          </label><br/>\n          <label>Color (null allowed):\n          <span  class=\"nullable\">\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\">\n              <option value=\"\">-- choose color --</option>\n            </select>\n          </span></label><br/>\n\n          <label>Color grouped by shade:\n            <select ng-model=\"myColor\" ng-options=\"color.name group by color.shade for color in colors\">\n            </select>\n          </label><br/>\n\n          <label>Color grouped by shade, with some disabled:\n            <select ng-model=\"myColor\"\n                  ng-options=\"color.name group by color.shade disable when color.notAnOption for color in colors\">\n            </select>\n          </label><br/>\n\n\n\n          Select <button ng-click=\"myColor = { name:'not in list', shade: 'other' }\">bogus</button>.\n          <br/>\n          <hr/>\n          Currently selected: {{ {selected_color:myColor} }}\n          <div style=\"border:solid 1px black; height:20px\"\n               ng-style=\"{'background-color':myColor.name}\">\n          </div>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n         it('should check ng-options', function() {\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');\n           element.all(by.model('myColor')).first().click();\n           element.all(by.css('select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');\n           element(by.css('.nullable select[ng-model=\"myColor\"]')).click();\n           element.all(by.css('.nullable select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');\n         });\n      </file>\n    </example>\n */\n\n// jshint maxlen: false\n//                     //00001111111111000000000002222222222000000000000000000000333333333300000000000000000000000004444444444400000000000005555555555555550000000006666666666666660000000777777777777777000000000000000888888888800000000000000000009999999999\nvar NG_OPTIONS_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+group\\s+by\\s+([\\s\\S]+?))?(?:\\s+disable\\s+when\\s+([\\s\\S]+?))?\\s+for\\s+(?:([\\$\\w][\\$\\w]*)|(?:\\(\\s*([\\$\\w][\\$\\w]*)\\s*,\\s*([\\$\\w][\\$\\w]*)\\s*\\)))\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?$/;\n                        // 1: value expression (valueFn)\n                        // 2: label expression (displayFn)\n                        // 3: group by expression (groupByFn)\n                        // 4: disable when expression (disableWhenFn)\n                        // 5: array item variable name\n                        // 6: object item key variable name\n                        // 7: object item value variable name\n                        // 8: collection expression\n                        // 9: track by expression\n// jshint maxlen: 100\n\n\nvar ngOptionsDirective = ['$compile', '$parse', function($compile, $parse) {\n\n  function parseOptionsExpression(optionsExp, selectElement, scope) {\n\n    var match = optionsExp.match(NG_OPTIONS_REGEXP);\n    if (!(match)) {\n      throw ngOptionsMinErr('iexp',\n        \"Expected expression in form of \" +\n        \"'_select_ (as _label_)? for (_key_,)?_value_ in _collection_'\" +\n        \" but got '{0}'. Element: {1}\",\n        optionsExp, startingTag(selectElement));\n    }\n\n    // Extract the parts from the ngOptions expression\n\n    // The variable name for the value of the item in the collection\n    var valueName = match[5] || match[7];\n    // The variable name for the key of the item in the collection\n    var keyName = match[6];\n\n    // An expression that generates the viewValue for an option if there is a label expression\n    var selectAs = / as /.test(match[0]) && match[1];\n    // An expression that is used to track the id of each object in the options collection\n    var trackBy = match[9];\n    // An expression that generates the viewValue for an option if there is no label expression\n    var valueFn = $parse(match[2] ? match[1] : valueName);\n    var selectAsFn = selectAs && $parse(selectAs);\n    var viewValueFn = selectAsFn || valueFn;\n    var trackByFn = trackBy && $parse(trackBy);\n\n    // Get the value by which we are going to track the option\n    // if we have a trackFn then use that (passing scope and locals)\n    // otherwise just hash the given viewValue\n    var getTrackByValueFn = trackBy ?\n                              function(value, locals) { return trackByFn(scope, locals); } :\n                              function getHashOfValue(value) { return hashKey(value); };\n    var getTrackByValue = function(value, key) {\n      return getTrackByValueFn(value, getLocals(value, key));\n    };\n\n    var displayFn = $parse(match[2] || match[1]);\n    var groupByFn = $parse(match[3] || '');\n    var disableWhenFn = $parse(match[4] || '');\n    var valuesFn = $parse(match[8]);\n\n    var locals = {};\n    var getLocals = keyName ? function(value, key) {\n      locals[keyName] = key;\n      locals[valueName] = value;\n      return locals;\n    } : function(value) {\n      locals[valueName] = value;\n      return locals;\n    };\n\n\n    function Option(selectValue, viewValue, label, group, disabled) {\n      this.selectValue = selectValue;\n      this.viewValue = viewValue;\n      this.label = label;\n      this.group = group;\n      this.disabled = disabled;\n    }\n\n    function getOptionValuesKeys(optionValues) {\n      var optionValuesKeys;\n\n      if (!keyName && isArrayLike(optionValues)) {\n        optionValuesKeys = optionValues;\n      } else {\n        // if object, extract keys, in enumeration order, unsorted\n        optionValuesKeys = [];\n        for (var itemKey in optionValues) {\n          if (optionValues.hasOwnProperty(itemKey) && itemKey.charAt(0) !== '$') {\n            optionValuesKeys.push(itemKey);\n          }\n        }\n      }\n      return optionValuesKeys;\n    }\n\n    return {\n      trackBy: trackBy,\n      getTrackByValue: getTrackByValue,\n      getWatchables: $parse(valuesFn, function(optionValues) {\n        // Create a collection of things that we would like to watch (watchedArray)\n        // so that they can all be watched using a single $watchCollection\n        // that only runs the handler once if anything changes\n        var watchedArray = [];\n        optionValues = optionValues || [];\n\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n\n          var locals = getLocals(optionValues[key], key);\n          var selectValue = getTrackByValueFn(optionValues[key], locals);\n          watchedArray.push(selectValue);\n\n          // Only need to watch the displayFn if there is a specific label expression\n          if (match[2] || match[1]) {\n            var label = displayFn(scope, locals);\n            watchedArray.push(label);\n          }\n\n          // Only need to watch the disableWhenFn if there is a specific disable expression\n          if (match[4]) {\n            var disableWhen = disableWhenFn(scope, locals);\n            watchedArray.push(disableWhen);\n          }\n        }\n        return watchedArray;\n      }),\n\n      getOptions: function() {\n\n        var optionItems = [];\n        var selectValueMap = {};\n\n        // The option values were already computed in the `getWatchables` fn,\n        // which must have been called to trigger `getOptions`\n        var optionValues = valuesFn(scope) || [];\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n          var locals = getLocals(value, key);\n          var viewValue = viewValueFn(scope, locals);\n          var selectValue = getTrackByValueFn(viewValue, locals);\n          var label = displayFn(scope, locals);\n          var group = groupByFn(scope, locals);\n          var disabled = disableWhenFn(scope, locals);\n          var optionItem = new Option(selectValue, viewValue, label, group, disabled);\n\n          optionItems.push(optionItem);\n          selectValueMap[selectValue] = optionItem;\n        }\n\n        return {\n          items: optionItems,\n          selectValueMap: selectValueMap,\n          getOptionFromViewValue: function(value) {\n            return selectValueMap[getTrackByValue(value)];\n          },\n          getViewValueFromOption: function(option) {\n            // If the viewValue could be an object that may be mutated by the application,\n            // we need to make a copy and not return the reference to the value on the option.\n            return trackBy ? angular.copy(option.viewValue) : option.viewValue;\n          }\n        };\n      }\n    };\n  }\n\n\n  // we can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  var optionTemplate = document.createElement('option'),\n      optGroupTemplate = document.createElement('optgroup');\n\n\n    function ngOptionsPostLink(scope, selectElement, attr, ctrls) {\n\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n      var multiple = attr.multiple;\n\n      // The emptyOption allows the application developer to provide their own custom \"empty\"\n      // option when the viewValue does not match any of the option values.\n      var emptyOption;\n      for (var i = 0, children = selectElement.children(), ii = children.length; i < ii; i++) {\n        if (children[i].value === '') {\n          emptyOption = children.eq(i);\n          break;\n        }\n      }\n\n      var providedEmptyOption = !!emptyOption;\n\n      var unknownOption = jqLite(optionTemplate.cloneNode(false));\n      unknownOption.val('?');\n\n      var options;\n      var ngOptions = parseOptionsExpression(attr.ngOptions, selectElement, scope);\n\n\n      var renderEmptyOption = function() {\n        if (!providedEmptyOption) {\n          selectElement.prepend(emptyOption);\n        }\n        selectElement.val('');\n        emptyOption.prop('selected', true); // needed for IE\n        emptyOption.attr('selected', true);\n      };\n\n      var removeEmptyOption = function() {\n        if (!providedEmptyOption) {\n          emptyOption.remove();\n        }\n      };\n\n\n      var renderUnknownOption = function() {\n        selectElement.prepend(unknownOption);\n        selectElement.val('?');\n        unknownOption.prop('selected', true); // needed for IE\n        unknownOption.attr('selected', true);\n      };\n\n      var removeUnknownOption = function() {\n        unknownOption.remove();\n      };\n\n      // Update the controller methods for multiple selectable options\n      if (!multiple) {\n\n        selectCtrl.writeValue = function writeNgOptionsValue(value) {\n          var option = options.getOptionFromViewValue(value);\n\n          if (option && !option.disabled) {\n            // Don't update the option when it is already selected.\n            // For example, the browser will select the first option by default. In that case,\n            // most properties are set automatically - except the `selected` attribute, which we\n            // set always\n\n            if (selectElement[0].value !== option.selectValue) {\n              removeUnknownOption();\n              removeEmptyOption();\n\n              selectElement[0].value = option.selectValue;\n              option.element.selected = true;\n            }\n\n            option.element.setAttribute('selected', 'selected');\n          } else {\n            if (value === null || providedEmptyOption) {\n              removeUnknownOption();\n              renderEmptyOption();\n            } else {\n              removeEmptyOption();\n              renderUnknownOption();\n            }\n          }\n        };\n\n        selectCtrl.readValue = function readNgOptionsValue() {\n\n          var selectedOption = options.selectValueMap[selectElement.val()];\n\n          if (selectedOption && !selectedOption.disabled) {\n            removeEmptyOption();\n            removeUnknownOption();\n            return options.getViewValueFromOption(selectedOption);\n          }\n          return null;\n        };\n\n        // If we are using `track by` then we must watch the tracked value on the model\n        // since ngModel only watches for object identity change\n        if (ngOptions.trackBy) {\n          scope.$watch(\n            function() { return ngOptions.getTrackByValue(ngModelCtrl.$viewValue); },\n            function() { ngModelCtrl.$render(); }\n          );\n        }\n\n      } else {\n\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n\n\n        selectCtrl.writeValue = function writeNgOptionsMultiple(value) {\n          options.items.forEach(function(option) {\n            option.element.selected = false;\n          });\n\n          if (value) {\n            value.forEach(function(item) {\n              var option = options.getOptionFromViewValue(item);\n              if (option && !option.disabled) option.element.selected = true;\n            });\n          }\n        };\n\n\n        selectCtrl.readValue = function readNgOptionsMultiple() {\n          var selectedValues = selectElement.val() || [],\n              selections = [];\n\n          forEach(selectedValues, function(value) {\n            var option = options.selectValueMap[value];\n            if (option && !option.disabled) selections.push(options.getViewValueFromOption(option));\n          });\n\n          return selections;\n        };\n\n        // If we are using `track by` then we must watch these tracked values on the model\n        // since ngModel only watches for object identity change\n        if (ngOptions.trackBy) {\n\n          scope.$watchCollection(function() {\n            if (isArray(ngModelCtrl.$viewValue)) {\n              return ngModelCtrl.$viewValue.map(function(value) {\n                return ngOptions.getTrackByValue(value);\n              });\n            }\n          }, function() {\n            ngModelCtrl.$render();\n          });\n\n        }\n      }\n\n\n      if (providedEmptyOption) {\n\n        // we need to remove it before calling selectElement.empty() because otherwise IE will\n        // remove the label from the element. wtf?\n        emptyOption.remove();\n\n        // compile the element since there might be bindings in it\n        $compile(emptyOption)(scope);\n\n        // remove the class, which is added automatically because we recompile the element and it\n        // becomes the compilation root\n        emptyOption.removeClass('ng-scope');\n      } else {\n        emptyOption = jqLite(optionTemplate.cloneNode(false));\n      }\n\n      // We need to do this here to ensure that the options object is defined\n      // when we first hit it in writeNgOptionsValue\n      updateOptions();\n\n      // We will re-render the option elements if the option values or labels change\n      scope.$watchCollection(ngOptions.getWatchables, updateOptions);\n\n      // ------------------------------------------------------------------ //\n\n\n      function updateOptionElement(option, element) {\n        option.element = element;\n        element.disabled = option.disabled;\n        // NOTE: The label must be set before the value, otherwise IE10/11/EDGE create unresponsive\n        // selects in certain circumstances when multiple selects are next to each other and display\n        // the option list in listbox style, i.e. the select is [multiple], or specifies a [size].\n        // See https://github.com/angular/angular.js/issues/11314 for more info.\n        // This is unfortunately untestable with unit / e2e tests\n        if (option.label !== element.label) {\n          element.label = option.label;\n          element.textContent = option.label;\n        }\n        if (option.value !== element.value) element.value = option.selectValue;\n      }\n\n      function addOrReuseElement(parent, current, type, templateElement) {\n        var element;\n        // Check whether we can reuse the next element\n        if (current && lowercase(current.nodeName) === type) {\n          // The next element is the right type so reuse it\n          element = current;\n        } else {\n          // The next element is not the right type so create a new one\n          element = templateElement.cloneNode(false);\n          if (!current) {\n            // There are no more elements so just append it to the select\n            parent.appendChild(element);\n          } else {\n            // The next element is not a group so insert the new one\n            parent.insertBefore(element, current);\n          }\n        }\n        return element;\n      }\n\n\n      function removeExcessElements(current) {\n        var next;\n        while (current) {\n          next = current.nextSibling;\n          jqLiteRemove(current);\n          current = next;\n        }\n      }\n\n\n      function skipEmptyAndUnknownOptions(current) {\n        var emptyOption_ = emptyOption && emptyOption[0];\n        var unknownOption_ = unknownOption && unknownOption[0];\n\n        // We cannot rely on the extracted empty option being the same as the compiled empty option,\n        // because the compiled empty option might have been replaced by a comment because\n        // it had an \"element\" transclusion directive on it (such as ngIf)\n        if (emptyOption_ || unknownOption_) {\n          while (current &&\n                (current === emptyOption_ ||\n                current === unknownOption_ ||\n                current.nodeType === NODE_TYPE_COMMENT ||\n                (nodeName_(current) === 'option' && current.value === ''))) {\n            current = current.nextSibling;\n          }\n        }\n        return current;\n      }\n\n\n      function updateOptions() {\n\n        var previousValue = options && selectCtrl.readValue();\n\n        options = ngOptions.getOptions();\n\n        var groupMap = {};\n        var currentElement = selectElement[0].firstChild;\n\n        // Ensure that the empty option is always there if it was explicitly provided\n        if (providedEmptyOption) {\n          selectElement.prepend(emptyOption);\n        }\n\n        currentElement = skipEmptyAndUnknownOptions(currentElement);\n\n        options.items.forEach(function updateOption(option) {\n          var group;\n          var groupElement;\n          var optionElement;\n\n          if (option.group) {\n\n            // This option is to live in a group\n            // See if we have already created this group\n            group = groupMap[option.group];\n\n            if (!group) {\n\n              // We have not already created this group\n              groupElement = addOrReuseElement(selectElement[0],\n                                               currentElement,\n                                               'optgroup',\n                                               optGroupTemplate);\n              // Move to the next element\n              currentElement = groupElement.nextSibling;\n\n              // Update the label on the group element\n              groupElement.label = option.group;\n\n              // Store it for use later\n              group = groupMap[option.group] = {\n                groupElement: groupElement,\n                currentOptionElement: groupElement.firstChild\n              };\n\n            }\n\n            // So now we have a group for this option we add the option to the group\n            optionElement = addOrReuseElement(group.groupElement,\n                                              group.currentOptionElement,\n                                              'option',\n                                              optionTemplate);\n            updateOptionElement(option, optionElement);\n            // Move to the next element\n            group.currentOptionElement = optionElement.nextSibling;\n\n          } else {\n\n            // This option is not in a group\n            optionElement = addOrReuseElement(selectElement[0],\n                                              currentElement,\n                                              'option',\n                                              optionTemplate);\n            updateOptionElement(option, optionElement);\n            // Move to the next element\n            currentElement = optionElement.nextSibling;\n          }\n        });\n\n\n        // Now remove all excess options and group\n        Object.keys(groupMap).forEach(function(key) {\n          removeExcessElements(groupMap[key].currentOptionElement);\n        });\n        removeExcessElements(currentElement);\n\n        ngModelCtrl.$render();\n\n        // Check to see if the value has changed due to the update to the options\n        if (!ngModelCtrl.$isEmpty(previousValue)) {\n          var nextValue = selectCtrl.readValue();\n          var isNotPrimitive = ngOptions.trackBy || multiple;\n          if (isNotPrimitive ? !equals(previousValue, nextValue) : previousValue !== nextValue) {\n            ngModelCtrl.$setViewValue(nextValue);\n            ngModelCtrl.$render();\n          }\n        }\n\n      }\n  }\n\n  return {\n    restrict: 'A',\n    terminal: true,\n    require: ['select', '?ngModel'],\n    link: {\n      pre: function ngOptionsPreLink(scope, selectElement, attr, ctrls) {\n        // Deactivate the SelectController.register method to prevent\n        // option directives from accidentally registering themselves\n        // (and unwanted $destroy handlers etc.)\n        ctrls[0].registerOption = noop;\n      },\n      post: ngOptionsPostLink\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngPluralize\n * @restrict EA\n *\n * @description\n * `ngPluralize` is a directive that displays messages according to en-US localization rules.\n * These rules are bundled with angular.js, but can be overridden\n * (see {@link guide/i18n Angular i18n} dev guide). You configure ngPluralize directive\n * by specifying the mappings between\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * and the strings to be displayed.\n *\n * # Plural categories and explicit number rules\n * There are two\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * in Angular's default en-US locale: \"one\" and \"other\".\n *\n * While a plural category may match many numbers (for example, in en-US locale, \"other\" can match\n * any number that is not 1), an explicit number rule can only match one number. For example, the\n * explicit number rule for \"3\" matches the number 3. There are examples of plural categories\n * and explicit number rules throughout the rest of this documentation.\n *\n * # Configuring ngPluralize\n * You configure ngPluralize by providing 2 attributes: `count` and `when`.\n * You can also provide an optional attribute, `offset`.\n *\n * The value of the `count` attribute can be either a string or an {@link guide/expression\n * Angular expression}; these are evaluated on the current scope for its bound value.\n *\n * The `when` attribute specifies the mappings between plural categories and the actual\n * string to be displayed. The value of the attribute should be a JSON object.\n *\n * The following example shows how to configure ngPluralize:\n *\n * ```html\n * <ng-pluralize count=\"personCount\"\n                 when=\"{'0': 'Nobody is viewing.',\n *                      'one': '1 person is viewing.',\n *                      'other': '{} people are viewing.'}\">\n * </ng-pluralize>\n *```\n *\n * In the example, `\"0: Nobody is viewing.\"` is an explicit number rule. If you did not\n * specify this rule, 0 would be matched to the \"other\" category and \"0 people are viewing\"\n * would be shown instead of \"Nobody is viewing\". You can specify an explicit number rule for\n * other numbers, for example 12, so that instead of showing \"12 people are viewing\", you can\n * show \"a dozen people are viewing\".\n *\n * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted\n * into pluralized strings. In the previous example, Angular will replace `{}` with\n * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder\n * for <span ng-non-bindable>{{numberExpression}}</span>.\n *\n * If no rule is defined for a category, then an empty string is displayed and a warning is generated.\n * Note that some locales define more categories than `one` and `other`. For example, fr-fr defines `few` and `many`.\n *\n * # Configuring ngPluralize with offset\n * The `offset` attribute allows further customization of pluralized text, which can result in\n * a better user experience. For example, instead of the message \"4 people are viewing this document\",\n * you might display \"John, Kate and 2 others are viewing this document\".\n * The offset attribute allows you to offset a number by any desired value.\n * Let's take a look at an example:\n *\n * ```html\n * <ng-pluralize count=\"personCount\" offset=2\n *               when=\"{'0': 'Nobody is viewing.',\n *                      '1': '{{person1}} is viewing.',\n *                      '2': '{{person1}} and {{person2}} are viewing.',\n *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',\n *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n * </ng-pluralize>\n * ```\n *\n * Notice that we are still using two plural categories(one, other), but we added\n * three explicit number rules 0, 1 and 2.\n * When one person, perhaps John, views the document, \"John is viewing\" will be shown.\n * When three people view the document, no explicit number rule is found, so\n * an offset of 2 is taken off 3, and Angular uses 1 to decide the plural category.\n * In this case, plural category 'one' is matched and \"John, Mary and one other person are viewing\"\n * is shown.\n *\n * Note that when you specify offsets, you must provide explicit number rules for\n * numbers from 0 up to and including the offset. If you use an offset of 3, for example,\n * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for\n * plural categories \"one\" and \"other\".\n *\n * @param {string|expression} count The variable to be bound to.\n * @param {string} when The mapping between plural category to its corresponding strings.\n * @param {number=} offset Offset to deduct from the total number.\n *\n * @example\n    <example module=\"pluralizeExample\">\n      <file name=\"index.html\">\n        <script>\n          angular.module('pluralizeExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.person1 = 'Igor';\n              $scope.person2 = 'Misko';\n              $scope.personCount = 1;\n            }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <label>Person 1:<input type=\"text\" ng-model=\"person1\" value=\"Igor\" /></label><br/>\n          <label>Person 2:<input type=\"text\" ng-model=\"person2\" value=\"Misko\" /></label><br/>\n          <label>Number of People:<input type=\"text\" ng-model=\"personCount\" value=\"1\" /></label><br/>\n\n          <!--- Example with simple pluralization rules for en locale --->\n          Without Offset:\n          <ng-pluralize count=\"personCount\"\n                        when=\"{'0': 'Nobody is viewing.',\n                               'one': '1 person is viewing.',\n                               'other': '{} people are viewing.'}\">\n          </ng-pluralize><br>\n\n          <!--- Example with offset --->\n          With Offset(2):\n          <ng-pluralize count=\"personCount\" offset=2\n                        when=\"{'0': 'Nobody is viewing.',\n                               '1': '{{person1}} is viewing.',\n                               '2': '{{person1}} and {{person2}} are viewing.',\n                               'one': '{{person1}}, {{person2}} and one other person are viewing.',\n                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n          </ng-pluralize>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should show correct pluralized string', function() {\n          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var countInput = element(by.model('personCount'));\n\n          expect(withoutOffset.getText()).toEqual('1 person is viewing.');\n          expect(withOffset.getText()).toEqual('Igor is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('0');\n\n          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');\n          expect(withOffset.getText()).toEqual('Nobody is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('2');\n\n          expect(withoutOffset.getText()).toEqual('2 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('3');\n\n          expect(withoutOffset.getText()).toEqual('3 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('4');\n\n          expect(withoutOffset.getText()).toEqual('4 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');\n        });\n        it('should show data-bound names', function() {\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var personCount = element(by.model('personCount'));\n          var person1 = element(by.model('person1'));\n          var person2 = element(by.model('person2'));\n          personCount.clear();\n          personCount.sendKeys('4');\n          person1.clear();\n          person1.sendKeys('Di');\n          person2.clear();\n          person2.sendKeys('Vojta');\n          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');\n        });\n      </file>\n    </example>\n */\nvar ngPluralizeDirective = ['$locale', '$interpolate', '$log', function($locale, $interpolate, $log) {\n  var BRACE = /{}/g,\n      IS_WHEN = /^when(Minus)?(.+)$/;\n\n  return {\n    link: function(scope, element, attr) {\n      var numberExp = attr.count,\n          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs\n          offset = attr.offset || 0,\n          whens = scope.$eval(whenExp) || {},\n          whensExpFns = {},\n          startSymbol = $interpolate.startSymbol(),\n          endSymbol = $interpolate.endSymbol(),\n          braceReplacement = startSymbol + numberExp + '-' + offset + endSymbol,\n          watchRemover = angular.noop,\n          lastCount;\n\n      forEach(attr, function(expression, attributeName) {\n        var tmpMatch = IS_WHEN.exec(attributeName);\n        if (tmpMatch) {\n          var whenKey = (tmpMatch[1] ? '-' : '') + lowercase(tmpMatch[2]);\n          whens[whenKey] = element.attr(attr.$attr[attributeName]);\n        }\n      });\n      forEach(whens, function(expression, key) {\n        whensExpFns[key] = $interpolate(expression.replace(BRACE, braceReplacement));\n\n      });\n\n      scope.$watch(numberExp, function ngPluralizeWatchAction(newVal) {\n        var count = parseFloat(newVal);\n        var countIsNaN = isNaN(count);\n\n        if (!countIsNaN && !(count in whens)) {\n          // If an explicit number rule such as 1, 2, 3... is defined, just use it.\n          // Otherwise, check it against pluralization rules in $locale service.\n          count = $locale.pluralCat(count - offset);\n        }\n\n        // If both `count` and `lastCount` are NaN, we don't need to re-register a watch.\n        // In JS `NaN !== NaN`, so we have to exlicitly check.\n        if ((count !== lastCount) && !(countIsNaN && isNumber(lastCount) && isNaN(lastCount))) {\n          watchRemover();\n          var whenExpFn = whensExpFns[count];\n          if (isUndefined(whenExpFn)) {\n            if (newVal != null) {\n              $log.debug(\"ngPluralize: no rule defined for '\" + count + \"' in \" + whenExp);\n            }\n            watchRemover = noop;\n            updateElementText();\n          } else {\n            watchRemover = scope.$watch(whenExpFn, updateElementText);\n          }\n          lastCount = count;\n        }\n      });\n\n      function updateElementText(newText) {\n        element.text(newText || '');\n      }\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRepeat\n * @multiElement\n *\n * @description\n * The `ngRepeat` directive instantiates a template once per item from a collection. Each template\n * instance gets its own scope, where the given loop variable is set to the current collection item,\n * and `$index` is set to the item index or key.\n *\n * Special properties are exposed on the local scope of each template instance, including:\n *\n * | Variable  | Type            | Details                                                                     |\n * |-----------|-----------------|-----------------------------------------------------------------------------|\n * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |\n * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |\n * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |\n * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |\n * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |\n * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |\n *\n * <div class=\"alert alert-info\">\n *   Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.\n *   This may be useful when, for instance, nesting ngRepeats.\n * </div>\n *\n *\n * # Iterating over object properties\n *\n * It is possible to get `ngRepeat` to iterate over the properties of an object using the following\n * syntax:\n *\n * ```js\n * <div ng-repeat=\"(key, value) in myObj\"> ... </div>\n * ```\n *\n * You need to be aware that the JavaScript specification does not define the order of keys\n * returned for an object. (To mitigate this in Angular 1.3 the `ngRepeat` directive\n * used to sort the keys alphabetically.)\n *\n * Version 1.4 removed the alphabetic sorting. We now rely on the order returned by the browser\n * when running `for key in myObj`. It seems that browsers generally follow the strategy of providing\n * keys in the order in which they were defined, although there are exceptions when keys are deleted\n * and reinstated. See the [MDN page on `delete` for more info](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete#Cross-browser_notes).\n *\n * If this is not desired, the recommended workaround is to convert your object into an array\n * that is sorted into the order that you prefer before providing it to `ngRepeat`.  You could\n * do this with a filter such as [toArrayFilter](http://ngmodules.org/modules/angular-toArrayFilter)\n * or implement a `$watch` on the object yourself.\n *\n *\n * # Tracking and Duplicates\n *\n * `ngRepeat` uses {@link $rootScope.Scope#$watchCollection $watchCollection} to detect changes in\n * the collection. When a change happens, ngRepeat then makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * To minimize creation of DOM elements, `ngRepeat` uses a function\n * to \"keep track\" of all items in the collection and their corresponding DOM elements.\n * For example, if an item is added to the collection, ngRepeat will know that all other items\n * already have DOM elements, and will not re-render them.\n *\n * The default tracking function (which tracks items by their identity) does not allow\n * duplicate items in arrays. This is because when there are duplicates, it is not possible\n * to maintain a one-to-one mapping between collection items and DOM elements.\n *\n * If you do need to repeat duplicate items, you can substitute the default tracking behavior\n * with your own using the `track by` expression.\n *\n * For example, you may track items by the index of each item in the collection, using the\n * special scope property `$index`:\n * ```html\n *    <div ng-repeat=\"n in [42, 42, 43, 43] track by $index\">\n *      {{n}}\n *    </div>\n * ```\n *\n * You may also use arbitrary expressions in `track by`, including references to custom functions\n * on the scope:\n * ```html\n *    <div ng-repeat=\"n in [42, 42, 43, 43] track by myTrackingFunction(n)\">\n *      {{n}}\n *    </div>\n * ```\n *\n * <div class=\"alert alert-success\">\n * If you are working with objects that have an identifier property, you should track\n * by the identifier instead of the whole object. Should you reload your data later, `ngRepeat`\n * will not have to rebuild the DOM elements for items it has already rendered, even if the\n * JavaScript objects in the collection have been substituted for new ones. For large collections,\n * this signifincantly improves rendering performance. If you don't have a unique identifier,\n * `track by $index` can also provide a performance boost.\n * </div>\n * ```html\n *    <div ng-repeat=\"model in collection track by model.id\">\n *      {{model.name}}\n *    </div>\n * ```\n *\n * When no `track by` expression is provided, it is equivalent to tracking by the built-in\n * `$id` function, which tracks items by their identity:\n * ```html\n *    <div ng-repeat=\"obj in collection track by $id(obj)\">\n *      {{obj.prop}}\n *    </div>\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** `track by` must always be the last expression:\n * </div>\n * ```\n * <div ng-repeat=\"model in collection | orderBy: 'id' as filtered_result track by model.id\">\n *     {{model.name}}\n * </div>\n * ```\n *\n * # Special repeat start and end points\n * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending\n * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.\n * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)\n * up to and including the ending HTML tag where **ng-repeat-end** is placed.\n *\n * The example below makes use of this feature:\n * ```html\n *   <header ng-repeat-start=\"item in items\">\n *     Header {{ item }}\n *   </header>\n *   <div class=\"body\">\n *     Body {{ item }}\n *   </div>\n *   <footer ng-repeat-end>\n *     Footer {{ item }}\n *   </footer>\n * ```\n *\n * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:\n * ```html\n *   <header>\n *     Header A\n *   </header>\n *   <div class=\"body\">\n *     Body A\n *   </div>\n *   <footer>\n *     Footer A\n *   </footer>\n *   <header>\n *     Header B\n *   </header>\n *   <div class=\"body\">\n *     Body B\n *   </div>\n *   <footer>\n *     Footer B\n *   </footer>\n * ```\n *\n * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such\n * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).\n *\n * @animations\n * **.enter** - when a new item is added to the list or when an item is revealed after a filter\n *\n * **.leave** - when an item is removed from the list or when an item is filtered out\n *\n * **.move** - when an adjacent item is filtered out causing a reorder or when the item contents are reordered\n *\n * @element ANY\n * @scope\n * @priority 1000\n * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These\n *   formats are currently supported:\n *\n *   * `variable in expression` – where variable is the user defined loop variable and `expression`\n *     is a scope expression giving the collection to enumerate.\n *\n *     For example: `album in artist.albums`.\n *\n *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,\n *     and `expression` is the scope expression giving the collection to enumerate.\n *\n *     For example: `(name, age) in {'adam':10, 'amalie':12}`.\n *\n *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking expression\n *     which can be used to associate the objects in the collection with the DOM elements. If no tracking expression\n *     is specified, ng-repeat associates elements by identity. It is an error to have\n *     more than one tracking expression value resolve to the same key. (This would mean that two distinct objects are\n *     mapped to the same DOM element, which is not possible.)\n *\n *     Note that the tracking expression must come last, after any filters, and the alias expression.\n *\n *     For example: `item in items` is equivalent to `item in items track by $id(item)`. This implies that the DOM elements\n *     will be associated by item identity in the array.\n *\n *     For example: `item in items track by $id(item)`. A built in `$id()` function can be used to assign a unique\n *     `$$hashKey` property to each item in the array. This property is then used as a key to associated DOM elements\n *     with the corresponding item in the array by identity. Moving the same object in array would move the DOM\n *     element in the same way in the DOM.\n *\n *     For example: `item in items track by item.id` is a typical pattern when the items come from the database. In this\n *     case the object identity does not matter. Two objects are considered equivalent as long as their `id`\n *     property is same.\n *\n *     For example: `item in items | filter:searchText track by item.id` is a pattern that might be used to apply a filter\n *     to items in conjunction with a tracking expression.\n *\n *   * `variable in expression as alias_expression` – You can also provide an optional alias expression which will then store the\n *     intermediate results of the repeater after the filters have been applied. Typically this is used to render a special message\n *     when a filter is active on the repeater, but the filtered result set is empty.\n *\n *     For example: `item in items | filter:x as results` will store the fragment of the repeated items as `results`, but only after\n *     the items have been processed through the filter.\n *\n *     Please note that `as [variable name] is not an operator but rather a part of ngRepeat micro-syntax so it can be used only at the end\n *     (and not as operator, inside an expression).\n *\n *     For example: `item in items | filter : x | orderBy : order | limitTo : limit as results` .\n *\n * @example\n * This example initializes the scope to a list of names and\n * then uses `ngRepeat` to display every person:\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-init=\"friends = [\n        {name:'John', age:25, gender:'boy'},\n        {name:'Jessie', age:30, gender:'girl'},\n        {name:'Johanna', age:28, gender:'girl'},\n        {name:'Joy', age:15, gender:'girl'},\n        {name:'Mary', age:28, gender:'girl'},\n        {name:'Peter', age:95, gender:'boy'},\n        {name:'Sebastian', age:50, gender:'boy'},\n        {name:'Erika', age:27, gender:'girl'},\n        {name:'Patrick', age:40, gender:'boy'},\n        {name:'Samantha', age:60, gender:'girl'}\n      ]\">\n        I have {{friends.length}} friends. They are:\n        <input type=\"search\" ng-model=\"q\" placeholder=\"filter friends...\" aria-label=\"filter friends\" />\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends | filter:q as results\">\n            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.\n          </li>\n          <li class=\"animate-repeat\" ng-if=\"results.length == 0\">\n            <strong>No results found...</strong>\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:40px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:40px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var friends = element.all(by.repeater('friend in friends'));\n\n      it('should render initial data set', function() {\n        expect(friends.count()).toBe(10);\n        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');\n        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');\n        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');\n        expect(element(by.binding('friends.length')).getText())\n            .toMatch(\"I have 10 friends. They are:\");\n      });\n\n       it('should update repeater when filter predicate changes', function() {\n         expect(friends.count()).toBe(10);\n\n         element(by.model('q')).sendKeys('ma');\n\n         expect(friends.count()).toBe(2);\n         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');\n         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');\n       });\n      </file>\n    </example>\n */\nvar ngRepeatDirective = ['$parse', '$animate', function($parse, $animate) {\n  var NG_REMOVED = '$$NG_REMOVED';\n  var ngRepeatMinErr = minErr('ngRepeat');\n\n  var updateScope = function(scope, index, valueIdentifier, value, keyIdentifier, key, arrayLength) {\n    // TODO(perf): generate setters to shave off ~40ms or 1-1.5%\n    scope[valueIdentifier] = value;\n    if (keyIdentifier) scope[keyIdentifier] = key;\n    scope.$index = index;\n    scope.$first = (index === 0);\n    scope.$last = (index === (arrayLength - 1));\n    scope.$middle = !(scope.$first || scope.$last);\n    // jshint bitwise: false\n    scope.$odd = !(scope.$even = (index&1) === 0);\n    // jshint bitwise: true\n  };\n\n  var getBlockStart = function(block) {\n    return block.clone[0];\n  };\n\n  var getBlockEnd = function(block) {\n    return block.clone[block.clone.length - 1];\n  };\n\n\n  return {\n    restrict: 'A',\n    multiElement: true,\n    transclude: 'element',\n    priority: 1000,\n    terminal: true,\n    $$tlb: true,\n    compile: function ngRepeatCompile($element, $attr) {\n      var expression = $attr.ngRepeat;\n      var ngRepeatEndComment = document.createComment(' end ngRepeat: ' + expression + ' ');\n\n      var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+track\\s+by\\s+([\\s\\S]+?))?\\s*$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iexp', \"Expected expression in form of '_item_ in _collection_[ track by _id_]' but got '{0}'.\",\n            expression);\n      }\n\n      var lhs = match[1];\n      var rhs = match[2];\n      var aliasAs = match[3];\n      var trackByExp = match[4];\n\n      match = lhs.match(/^(?:(\\s*[\\$\\w]+)|\\(\\s*([\\$\\w]+)\\s*,\\s*([\\$\\w]+)\\s*\\))$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iidexp', \"'_item_' in '_item_ in _collection_' should be an identifier or '(_key_, _value_)' expression, but got '{0}'.\",\n            lhs);\n      }\n      var valueIdentifier = match[3] || match[1];\n      var keyIdentifier = match[2];\n\n      if (aliasAs && (!/^[$a-zA-Z_][$a-zA-Z0-9_]*$/.test(aliasAs) ||\n          /^(null|undefined|this|\\$index|\\$first|\\$middle|\\$last|\\$even|\\$odd|\\$parent|\\$root|\\$id)$/.test(aliasAs))) {\n        throw ngRepeatMinErr('badident', \"alias '{0}' is invalid --- must be a valid JS identifier which is not a reserved name.\",\n          aliasAs);\n      }\n\n      var trackByExpGetter, trackByIdExpFn, trackByIdArrayFn, trackByIdObjFn;\n      var hashFnLocals = {$id: hashKey};\n\n      if (trackByExp) {\n        trackByExpGetter = $parse(trackByExp);\n      } else {\n        trackByIdArrayFn = function(key, value) {\n          return hashKey(value);\n        };\n        trackByIdObjFn = function(key) {\n          return key;\n        };\n      }\n\n      return function ngRepeatLink($scope, $element, $attr, ctrl, $transclude) {\n\n        if (trackByExpGetter) {\n          trackByIdExpFn = function(key, value, index) {\n            // assign key, value, and $index to the locals so that they can be used in hash functions\n            if (keyIdentifier) hashFnLocals[keyIdentifier] = key;\n            hashFnLocals[valueIdentifier] = value;\n            hashFnLocals.$index = index;\n            return trackByExpGetter($scope, hashFnLocals);\n          };\n        }\n\n        // Store a list of elements from previous run. This is a hash where key is the item from the\n        // iterator, and the value is objects with following properties.\n        //   - scope: bound scope\n        //   - element: previous element.\n        //   - index: position\n        //\n        // We are using no-proto object so that we don't need to guard against inherited props via\n        // hasOwnProperty.\n        var lastBlockMap = createMap();\n\n        //watch props\n        $scope.$watchCollection(rhs, function ngRepeatAction(collection) {\n          var index, length,\n              previousNode = $element[0],     // node that cloned nodes should be inserted after\n                                              // initialized to the comment node anchor\n              nextNode,\n              // Same as lastBlockMap but it has the current state. It will become the\n              // lastBlockMap on the next iteration.\n              nextBlockMap = createMap(),\n              collectionLength,\n              key, value, // key/value of iteration\n              trackById,\n              trackByIdFn,\n              collectionKeys,\n              block,       // last object information {scope, element, id}\n              nextBlockOrder,\n              elementsToRemove;\n\n          if (aliasAs) {\n            $scope[aliasAs] = collection;\n          }\n\n          if (isArrayLike(collection)) {\n            collectionKeys = collection;\n            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;\n          } else {\n            trackByIdFn = trackByIdExpFn || trackByIdObjFn;\n            // if object, extract keys, in enumeration order, unsorted\n            collectionKeys = [];\n            for (var itemKey in collection) {\n              if (hasOwnProperty.call(collection, itemKey) && itemKey.charAt(0) !== '$') {\n                collectionKeys.push(itemKey);\n              }\n            }\n          }\n\n          collectionLength = collectionKeys.length;\n          nextBlockOrder = new Array(collectionLength);\n\n          // locate existing items\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            trackById = trackByIdFn(key, value, index);\n            if (lastBlockMap[trackById]) {\n              // found previously seen block\n              block = lastBlockMap[trackById];\n              delete lastBlockMap[trackById];\n              nextBlockMap[trackById] = block;\n              nextBlockOrder[index] = block;\n            } else if (nextBlockMap[trackById]) {\n              // if collision detected. restore lastBlockMap and throw an error\n              forEach(nextBlockOrder, function(block) {\n                if (block && block.scope) lastBlockMap[block.id] = block;\n              });\n              throw ngRepeatMinErr('dupes',\n                  \"Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}\",\n                  expression, trackById, value);\n            } else {\n              // new never before seen block\n              nextBlockOrder[index] = {id: trackById, scope: undefined, clone: undefined};\n              nextBlockMap[trackById] = true;\n            }\n          }\n\n          // remove leftover items\n          for (var blockKey in lastBlockMap) {\n            block = lastBlockMap[blockKey];\n            elementsToRemove = getBlockNodes(block.clone);\n            $animate.leave(elementsToRemove);\n            if (elementsToRemove[0].parentNode) {\n              // if the element was not removed yet because of pending animation, mark it as deleted\n              // so that we can ignore it later\n              for (index = 0, length = elementsToRemove.length; index < length; index++) {\n                elementsToRemove[index][NG_REMOVED] = true;\n              }\n            }\n            block.scope.$destroy();\n          }\n\n          // we are not using forEach for perf reasons (trying to avoid #call)\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            block = nextBlockOrder[index];\n\n            if (block.scope) {\n              // if we have already seen this object, then we need to reuse the\n              // associated scope/element\n\n              nextNode = previousNode;\n\n              // skip nodes that are already pending removal via leave animation\n              do {\n                nextNode = nextNode.nextSibling;\n              } while (nextNode && nextNode[NG_REMOVED]);\n\n              if (getBlockStart(block) != nextNode) {\n                // existing item which got moved\n                $animate.move(getBlockNodes(block.clone), null, previousNode);\n              }\n              previousNode = getBlockEnd(block);\n              updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n            } else {\n              // new item which we don't know about\n              $transclude(function ngRepeatTransclude(clone, scope) {\n                block.scope = scope;\n                // http://jsperf.com/clone-vs-createcomment\n                var endNode = ngRepeatEndComment.cloneNode(false);\n                clone[clone.length++] = endNode;\n\n                $animate.enter(clone, null, previousNode);\n                previousNode = endNode;\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block.clone = clone;\n                nextBlockMap[block.id] = block;\n                updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n              });\n            }\n          }\n          lastBlockMap = nextBlockMap;\n        });\n      };\n    }\n  };\n}];\n\nvar NG_HIDE_CLASS = 'ng-hide';\nvar NG_HIDE_IN_PROGRESS_CLASS = 'ng-hide-animate';\n/**\n * @ngdoc directive\n * @name ngShow\n * @multiElement\n *\n * @description\n * The `ngShow` directive shows or hides the given HTML element based on the expression\n * provided to the `ngShow` attribute. The element is shown or hidden by removing or adding\n * the `.ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined\n * in AngularJS and sets the display style to none (using an !important flag).\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is visible) -->\n * <div ng-show=\"myValue\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is hidden) -->\n * <div ng-show=\"myValue\" class=\"ng-hide\"></div>\n * ```\n *\n * When the `ngShow` expression evaluates to a falsy value then the `.ng-hide` CSS class is added to the class\n * attribute on the element causing it to become hidden. When truthy, the `.ng-hide` CSS class is removed\n * from the element causing the element not to appear hidden.\n *\n * ## Why is !important used?\n *\n * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector\n * can be easily overridden by heavier selectors. For example, something as simple\n * as changing the display style on a HTML list item would make hidden elements appear visible.\n * This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector\n * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the\n * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none!important`. If you wish to change\n * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`\n * class CSS. Note that the selector that needs to be used is actually `.ng-hide:not(.ng-hide-animate)` to cope\n * with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; this is just another form of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the display style.\n *\n * ## A note about animations with `ngShow`\n *\n * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression\n * is true and false. This system works like the animation system present with ngClass except that\n * you must also include the !important flag to override the display property\n * so that you can perform an animation when the element is hidden during the time of the animation.\n *\n * ```css\n * //\n * //a working example can be found at the bottom of this page\n * //\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   /&#42; this is required as of 1.3x to properly\n *      apply all styling in a show/hide animation &#42;/\n *   transition: 0s linear all;\n * }\n *\n * .my-element.ng-hide-add-active,\n * .my-element.ng-hide-remove-active {\n *   /&#42; the transition is defined in the active class &#42;/\n *   transition: 1s linear all;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3.0-beta.11, there is no need to change the display\n * property to block during animation states--ngAnimate will handle the style toggling automatically for you.\n *\n * @animations\n * addClass: `.ng-hide` - happens after the `ngShow` expression evaluates to a truthy value and the just before contents are set to visible\n * removeClass: `.ng-hide` - happens after the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden\n *\n * @element ANY\n * @param {expression} ngShow If the {@link guide/expression expression} is truthy\n *     then the element is shown or hidden respectively.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br/>\n      <div>\n        Show:\n        <div class=\"check-element animate-show\" ng-show=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-up\"></span> I show up when your checkbox is checked.\n        </div>\n      </div>\n      <div>\n        Hide:\n        <div class=\"check-element animate-show\" ng-hide=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-down\"></span> I hide when your checkbox is checked.\n        </div>\n      </div>\n    </file>\n    <file name=\"glyphicons.css\">\n      @import url(../../components/bootstrap-3.1.1/css/bootstrap.css);\n    </file>\n    <file name=\"animations.css\">\n      .animate-show {\n        line-height: 20px;\n        opacity: 1;\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n\n      .animate-show.ng-hide-add, .animate-show.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .animate-show.ng-hide {\n        line-height: 0;\n        opacity: 0;\n        padding: 0 10px;\n      }\n\n      .check-element {\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));\n      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));\n\n      it('should check ng-show / ng-hide', function() {\n        expect(thumbsUp.isDisplayed()).toBeFalsy();\n        expect(thumbsDown.isDisplayed()).toBeTruthy();\n\n        element(by.model('checked')).click();\n\n        expect(thumbsUp.isDisplayed()).toBeTruthy();\n        expect(thumbsDown.isDisplayed()).toBeFalsy();\n      });\n    </file>\n  </example>\n */\nvar ngShowDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngShow, function ngShowWatchAction(value) {\n        // we're adding a temporary, animation-specific class for ng-hide since this way\n        // we can control when the element is actually displayed on screen without having\n        // to have a global/greedy CSS selector that breaks when other animations are run.\n        // Read: https://github.com/angular/angular.js/issues/9103#issuecomment-58335845\n        $animate[value ? 'removeClass' : 'addClass'](element, NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngHide\n * @multiElement\n *\n * @description\n * The `ngHide` directive shows or hides the given HTML element based on the expression\n * provided to the `ngHide` attribute. The element is shown or hidden by removing or adding\n * the `ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined\n * in AngularJS and sets the display style to none (using an !important flag).\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is hidden) -->\n * <div ng-hide=\"myValue\" class=\"ng-hide\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is visible) -->\n * <div ng-hide=\"myValue\"></div>\n * ```\n *\n * When the `ngHide` expression evaluates to a truthy value then the `.ng-hide` CSS class is added to the class\n * attribute on the element causing it to become hidden. When falsy, the `.ng-hide` CSS class is removed\n * from the element causing the element not to appear hidden.\n *\n * ## Why is !important used?\n *\n * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector\n * can be easily overridden by heavier selectors. For example, something as simple\n * as changing the display style on a HTML list item would make hidden elements appear visible.\n * This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector\n * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the\n * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none!important`. If you wish to change\n * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`\n * class in CSS:\n *\n * ```css\n * .ng-hide {\n *   /&#42; this is just another form of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the display style.\n *\n * ## A note about animations with `ngHide`\n *\n * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression\n * is true and false. This system works like the animation system present with ngClass, except that the `.ng-hide`\n * CSS class is added and removed for you instead of your own CSS class.\n *\n * ```css\n * //\n * //a working example can be found at the bottom of this page\n * //\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: 0.5s linear all;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3.0-beta.11, there is no need to change the display\n * property to block during animation states--ngAnimate will handle the style toggling automatically for you.\n *\n * @animations\n * removeClass: `.ng-hide` - happens after the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden\n * addClass: `.ng-hide` - happens after the `ngHide` expression evaluates to a non truthy value and just before the contents are set to visible\n *\n * @element ANY\n * @param {expression} ngHide If the {@link guide/expression expression} is truthy then\n *     the element is shown or hidden respectively.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      Click me: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br/>\n      <div>\n        Show:\n        <div class=\"check-element animate-hide\" ng-show=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-up\"></span> I show up when your checkbox is checked.\n        </div>\n      </div>\n      <div>\n        Hide:\n        <div class=\"check-element animate-hide\" ng-hide=\"checked\">\n          <span class=\"glyphicon glyphicon-thumbs-down\"></span> I hide when your checkbox is checked.\n        </div>\n      </div>\n    </file>\n    <file name=\"glyphicons.css\">\n      @import url(../../components/bootstrap-3.1.1/css/bootstrap.css);\n    </file>\n    <file name=\"animations.css\">\n      .animate-hide {\n        transition: all linear 0.5s;\n        line-height: 20px;\n        opacity: 1;\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n\n      .animate-hide.ng-hide {\n        line-height: 0;\n        opacity: 0;\n        padding: 0 10px;\n      }\n\n      .check-element {\n        padding: 10px;\n        border: 1px solid black;\n        background: white;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));\n      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));\n\n      it('should check ng-show / ng-hide', function() {\n        expect(thumbsUp.isDisplayed()).toBeFalsy();\n        expect(thumbsDown.isDisplayed()).toBeTruthy();\n\n        element(by.model('checked')).click();\n\n        expect(thumbsUp.isDisplayed()).toBeTruthy();\n        expect(thumbsDown.isDisplayed()).toBeFalsy();\n      });\n    </file>\n  </example>\n */\nvar ngHideDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngHide, function ngHideWatchAction(value) {\n        // The comment inside of the ngShowDirective explains why we add and\n        // remove a temporary class for the show/hide animation\n        $animate[value ? 'addClass' : 'removeClass'](element,NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngStyle\n * @restrict AC\n *\n * @description\n * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.\n *\n * @element ANY\n * @param {expression} ngStyle\n *\n * {@link guide/expression Expression} which evals to an\n * object whose keys are CSS style names and values are corresponding values for those CSS\n * keys.\n *\n * Since some CSS style names are not valid keys for an object, they must be quoted.\n * See the 'background-color' style in the example below.\n *\n * @example\n   <example>\n     <file name=\"index.html\">\n        <input type=\"button\" value=\"set color\" ng-click=\"myStyle={color:'red'}\">\n        <input type=\"button\" value=\"set background\" ng-click=\"myStyle={'background-color':'blue'}\">\n        <input type=\"button\" value=\"clear\" ng-click=\"myStyle={}\">\n        <br/>\n        <span ng-style=\"myStyle\">Sample Text</span>\n        <pre>myStyle={{myStyle}}</pre>\n     </file>\n     <file name=\"style.css\">\n       span {\n         color: black;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var colorSpan = element(by.css('span'));\n\n       it('should check ng-style', function() {\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n         element(by.css('input[value=\\'set color\\']')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');\n         element(by.css('input[value=clear]')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n       });\n     </file>\n   </example>\n */\nvar ngStyleDirective = ngDirective(function(scope, element, attr) {\n  scope.$watch(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {\n    if (oldStyles && (newStyles !== oldStyles)) {\n      forEach(oldStyles, function(val, style) { element.css(style, '');});\n    }\n    if (newStyles) element.css(newStyles);\n  }, true);\n});\n\n/**\n * @ngdoc directive\n * @name ngSwitch\n * @restrict EA\n *\n * @description\n * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.\n * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location\n * as specified in the template.\n *\n * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it\n * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element\n * matches the value obtained from the evaluated expression. In other words, you define a container element\n * (where you place the directive), place an expression on the **`on=\"...\"` attribute**\n * (or the **`ng-switch=\"...\"` attribute**), define any inner elements inside of the directive and place\n * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on\n * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default\n * attribute is displayed.\n *\n * <div class=\"alert alert-info\">\n * Be aware that the attribute values to match against cannot be expressions. They are interpreted\n * as literal string values to match against.\n * For example, **`ng-switch-when=\"someVal\"`** will match against the string `\"someVal\"` not against the\n * value of the expression `$scope.someVal`.\n * </div>\n\n * @animations\n * enter - happens after the ngSwitch contents change and the matched child element is placed inside the container\n * leave - happens just after the ngSwitch contents change and just before the former contents are removed from the DOM\n *\n * @usage\n *\n * ```\n * <ANY ng-switch=\"expression\">\n *   <ANY ng-switch-when=\"matchValue1\">...</ANY>\n *   <ANY ng-switch-when=\"matchValue2\">...</ANY>\n *   <ANY ng-switch-default>...</ANY>\n * </ANY>\n * ```\n *\n *\n * @scope\n * @priority 1200\n * @param {*} ngSwitch|on expression to match against <code>ng-switch-when</code>.\n * On child elements add:\n *\n * * `ngSwitchWhen`: the case statement to match against. If match then this\n *   case will be displayed. If the same match appears multiple times, all the\n *   elements will be displayed.\n * * `ngSwitchDefault`: the default case when no other case match. If there\n *   are multiple default cases, all of them will be displayed when no other\n *   case match.\n *\n *\n * @example\n  <example module=\"switchExample\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <select ng-model=\"selection\" ng-options=\"item for item in items\">\n        </select>\n        <code>selection={{selection}}</code>\n        <hr/>\n        <div class=\"animate-switch-container\"\n          ng-switch on=\"selection\">\n            <div class=\"animate-switch\" ng-switch-when=\"settings\">Settings Div</div>\n            <div class=\"animate-switch\" ng-switch-when=\"home\">Home Span</div>\n            <div class=\"animate-switch\" ng-switch-default>default</div>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('switchExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.items = ['settings', 'home', 'other'];\n          $scope.selection = $scope.items[0];\n        }]);\n    </file>\n    <file name=\"animations.css\">\n      .animate-switch-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .animate-switch {\n        padding:10px;\n      }\n\n      .animate-switch.ng-animate {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n      }\n\n      .animate-switch.ng-leave.ng-leave-active,\n      .animate-switch.ng-enter {\n        top:-50px;\n      }\n      .animate-switch.ng-leave,\n      .animate-switch.ng-enter.ng-enter-active {\n        top:0;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var switchElem = element(by.css('[ng-switch]'));\n      var select = element(by.model('selection'));\n\n      it('should start in settings', function() {\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should change to home', function() {\n        select.all(by.css('option')).get(1).click();\n        expect(switchElem.getText()).toMatch(/Home Span/);\n      });\n      it('should select default', function() {\n        select.all(by.css('option')).get(2).click();\n        expect(switchElem.getText()).toMatch(/default/);\n      });\n    </file>\n  </example>\n */\nvar ngSwitchDirective = ['$animate', function($animate) {\n  return {\n    require: 'ngSwitch',\n\n    // asks for $scope to fool the BC controller module\n    controller: ['$scope', function ngSwitchController() {\n     this.cases = {};\n    }],\n    link: function(scope, element, attr, ngSwitchController) {\n      var watchExpr = attr.ngSwitch || attr.on,\n          selectedTranscludes = [],\n          selectedElements = [],\n          previousLeaveAnimations = [],\n          selectedScopes = [];\n\n      var spliceFactory = function(array, index) {\n          return function() { array.splice(index, 1); };\n      };\n\n      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {\n        var i, ii;\n        for (i = 0, ii = previousLeaveAnimations.length; i < ii; ++i) {\n          $animate.cancel(previousLeaveAnimations[i]);\n        }\n        previousLeaveAnimations.length = 0;\n\n        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {\n          var selected = getBlockNodes(selectedElements[i].clone);\n          selectedScopes[i].$destroy();\n          var promise = previousLeaveAnimations[i] = $animate.leave(selected);\n          promise.then(spliceFactory(previousLeaveAnimations, i));\n        }\n\n        selectedElements.length = 0;\n        selectedScopes.length = 0;\n\n        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {\n          forEach(selectedTranscludes, function(selectedTransclude) {\n            selectedTransclude.transclude(function(caseElement, selectedScope) {\n              selectedScopes.push(selectedScope);\n              var anchor = selectedTransclude.element;\n              caseElement[caseElement.length++] = document.createComment(' end ngSwitchWhen: ');\n              var block = { clone: caseElement };\n\n              selectedElements.push(block);\n              $animate.enter(caseElement, anchor.parent(), anchor);\n            });\n          });\n        }\n      });\n    }\n  };\n}];\n\nvar ngSwitchWhenDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attrs, ctrl, $transclude) {\n    ctrl.cases['!' + attrs.ngSwitchWhen] = (ctrl.cases['!' + attrs.ngSwitchWhen] || []);\n    ctrl.cases['!' + attrs.ngSwitchWhen].push({ transclude: $transclude, element: element });\n  }\n});\n\nvar ngSwitchDefaultDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attr, ctrl, $transclude) {\n    ctrl.cases['?'] = (ctrl.cases['?'] || []);\n    ctrl.cases['?'].push({ transclude: $transclude, element: element });\n   }\n});\n\n/**\n * @ngdoc directive\n * @name ngTransclude\n * @restrict EAC\n *\n * @description\n * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.\n *\n * Any existing content of the element that this directive is placed on will be removed before the transcluded content is inserted.\n *\n * @element ANY\n *\n * @example\n   <example module=\"transcludeExample\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('transcludeExample', [])\n          .directive('pane', function(){\n             return {\n               restrict: 'E',\n               transclude: true,\n               scope: { title:'@' },\n               template: '<div style=\"border: 1px solid black;\">' +\n                           '<div style=\"background-color: gray\">{{title}}</div>' +\n                           '<ng-transclude></ng-transclude>' +\n                         '</div>'\n             };\n         })\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.title = 'Lorem Ipsum';\n           $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n         }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input ng-model=\"title\" aria-label=\"title\"> <br/>\n         <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n         <pane title=\"{{title}}\">{{text}}</pane>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        it('should have transcluded', function() {\n          var titleElement = element(by.model('title'));\n          titleElement.clear();\n          titleElement.sendKeys('TITLE');\n          var textElement = element(by.model('text'));\n          textElement.clear();\n          textElement.sendKeys('TEXT');\n          expect(element(by.binding('title')).getText()).toEqual('TITLE');\n          expect(element(by.binding('text')).getText()).toEqual('TEXT');\n        });\n     </file>\n   </example>\n *\n */\nvar ngTranscludeDirective = ngDirective({\n  restrict: 'EAC',\n  link: function($scope, $element, $attrs, controller, $transclude) {\n    if (!$transclude) {\n      throw minErr('ngTransclude')('orphan',\n       'Illegal use of ngTransclude directive in the template! ' +\n       'No parent directive that requires a transclusion found. ' +\n       'Element: {0}',\n       startingTag($element));\n    }\n\n    $transclude(function(clone) {\n      $element.empty();\n      $element.append(clone);\n    });\n  }\n});\n\n/**\n * @ngdoc directive\n * @name script\n * @restrict E\n *\n * @description\n * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the\n * template can be used by {@link ng.directive:ngInclude `ngInclude`},\n * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the\n * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be\n * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.\n *\n * @param {string} type Must be set to `'text/ng-template'`.\n * @param {string} id Cache name of the template.\n *\n * @example\n  <example>\n    <file name=\"index.html\">\n      <script type=\"text/ng-template\" id=\"/tpl.html\">\n        Content of the template.\n      </script>\n\n      <a ng-click=\"currentTpl='/tpl.html'\" id=\"tpl-link\">Load inlined template</a>\n      <div id=\"tpl-content\" ng-include src=\"currentTpl\"></div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should load template defined inside script tag', function() {\n        element(by.css('#tpl-link')).click();\n        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);\n      });\n    </file>\n  </example>\n */\nvar scriptDirective = ['$templateCache', function($templateCache) {\n  return {\n    restrict: 'E',\n    terminal: true,\n    compile: function(element, attr) {\n      if (attr.type == 'text/ng-template') {\n        var templateUrl = attr.id,\n            text = element[0].text;\n\n        $templateCache.put(templateUrl, text);\n      }\n    }\n  };\n}];\n\nvar noopNgModelController = { $setViewValue: noop, $render: noop };\n\nfunction chromeHack(optionElement) {\n  // Workaround for https://code.google.com/p/chromium/issues/detail?id=381459\n  // Adding an <option selected=\"selected\"> element to a <select required=\"required\"> should\n  // automatically select the new element\n  if (optionElement[0].hasAttribute('selected')) {\n    optionElement[0].selected = true;\n  }\n}\n\n/**\n * @ngdoc type\n * @name  select.SelectController\n * @description\n * The controller for the `<select>` directive. This provides support for reading\n * and writing the selected value(s) of the control and also coordinates dynamically\n * added `<option>` elements, perhaps by an `ngRepeat` directive.\n */\nvar SelectController =\n        ['$element', '$scope', '$attrs', function($element, $scope, $attrs) {\n\n  var self = this,\n      optionsMap = new HashMap();\n\n  // If the ngModel doesn't get provided then provide a dummy noop version to prevent errors\n  self.ngModelCtrl = noopNgModelController;\n\n  // The \"unknown\" option is one that is prepended to the list if the viewValue\n  // does not match any of the options. When it is rendered the value of the unknown\n  // option is '? XXX ?' where XXX is the hashKey of the value that is not known.\n  //\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  self.unknownOption = jqLite(document.createElement('option'));\n  self.renderUnknownOption = function(val) {\n    var unknownVal = '? ' + hashKey(val) + ' ?';\n    self.unknownOption.val(unknownVal);\n    $element.prepend(self.unknownOption);\n    $element.val(unknownVal);\n  };\n\n  $scope.$on('$destroy', function() {\n    // disable unknown option so that we don't do work when the whole select is being destroyed\n    self.renderUnknownOption = noop;\n  });\n\n  self.removeUnknownOption = function() {\n    if (self.unknownOption.parent()) self.unknownOption.remove();\n  };\n\n\n  // Read the value of the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.readValue = function readSingleValue() {\n    self.removeUnknownOption();\n    return $element.val();\n  };\n\n\n  // Write the value to the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.writeValue = function writeSingleValue(value) {\n    if (self.hasOption(value)) {\n      self.removeUnknownOption();\n      $element.val(value);\n      if (value === '') self.emptyOption.prop('selected', true); // to make IE9 happy\n    } else {\n      if (value == null && self.emptyOption) {\n        self.removeUnknownOption();\n        $element.val('');\n      } else {\n        self.renderUnknownOption(value);\n      }\n    }\n  };\n\n\n  // Tell the select control that an option, with the given value, has been added\n  self.addOption = function(value, element) {\n    // Skip comment nodes, as they only pollute the `optionsMap`\n    if (element[0].nodeType === NODE_TYPE_COMMENT) return;\n\n    assertNotHasOwnProperty(value, '\"option value\"');\n    if (value === '') {\n      self.emptyOption = element;\n    }\n    var count = optionsMap.get(value) || 0;\n    optionsMap.put(value, count + 1);\n    self.ngModelCtrl.$render();\n    chromeHack(element);\n  };\n\n  // Tell the select control that an option, with the given value, has been removed\n  self.removeOption = function(value) {\n    var count = optionsMap.get(value);\n    if (count) {\n      if (count === 1) {\n        optionsMap.remove(value);\n        if (value === '') {\n          self.emptyOption = undefined;\n        }\n      } else {\n        optionsMap.put(value, count - 1);\n      }\n    }\n  };\n\n  // Check whether the select control has an option matching the given value\n  self.hasOption = function(value) {\n    return !!optionsMap.get(value);\n  };\n\n\n  self.registerOption = function(optionScope, optionElement, optionAttrs, interpolateValueFn, interpolateTextFn) {\n\n    if (interpolateValueFn) {\n      // The value attribute is interpolated\n      var oldVal;\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n        if (isDefined(oldVal)) {\n          self.removeOption(oldVal);\n        }\n        oldVal = newVal;\n        self.addOption(newVal, optionElement);\n      });\n    } else if (interpolateTextFn) {\n      // The text content is interpolated\n      optionScope.$watch(interpolateTextFn, function interpolateWatchAction(newVal, oldVal) {\n        optionAttrs.$set('value', newVal);\n        if (oldVal !== newVal) {\n          self.removeOption(oldVal);\n        }\n        self.addOption(newVal, optionElement);\n      });\n    } else {\n      // The value attribute is static\n      self.addOption(optionAttrs.value, optionElement);\n    }\n\n    optionElement.on('$destroy', function() {\n      self.removeOption(optionAttrs.value);\n      self.ngModelCtrl.$render();\n    });\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name select\n * @restrict E\n *\n * @description\n * HTML `SELECT` element with angular data-binding.\n *\n * The `select` directive is used together with {@link ngModel `ngModel`} to provide data-binding\n * between the scope and the `<select>` control (including setting default values).\n * It also handles dynamic `<option>` elements, which can be added using the {@link ngRepeat `ngRepeat}` or\n * {@link ngOptions `ngOptions`} directives.\n *\n * When an item in the `<select>` menu is selected, the value of the selected option will be bound\n * to the model identified by the `ngModel` directive. With static or repeated options, this is\n * the content of the `value` attribute or the textContent of the `<option>`, if the value attribute is missing.\n * If you want dynamic value attributes, you can use interpolation inside the value attribute.\n *\n * <div class=\"alert alert-warning\">\n * Note that the value of a `select` directive used without `ngOptions` is always a string.\n * When the model needs to be bound to a non-string value, you must either explictly convert it\n * using a directive (see example below) or use `ngOptions` to specify the set of options.\n * This is because an option element can only be bound to string values at present.\n * </div>\n *\n * If the viewValue of `ngModel` does not match any of the options, then the control\n * will automatically add an \"unknown\" option, which it then removes when the mismatch is resolved.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * <div class=\"alert alert-info\">\n * In many cases, `ngRepeat` can be used on `<option>` elements instead of {@link ng.directive:ngOptions\n * ngOptions} to achieve a similar result. However, `ngOptions` provides some benefits, such as\n * more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression, and additionally in reducing memory and increasing speed by not creating\n * a new scope for each repeated instance.\n * </div>\n *\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} multiple Allows multiple options to be selected. The selected values will be\n *     bound to the model as an array.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds required attribute and required validation constraint to\n * the element when the ngRequired expression evaluates to true. Use ngRequired instead of required\n * when you want to data-bind to the required attribute.\n * @param {string=} ngChange Angular expression to be executed when selected option(s) changes due to user\n *    interaction with the select element.\n * @param {string=} ngOptions sets the options that the select is populated with and defines what is\n * set on the model on selection. See {@link ngOptions `ngOptions`}.\n *\n * @example\n * ### Simple `select` elements with static options\n *\n * <example name=\"static-select\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"singleSelect\"> Single select: </label><br>\n *     <select name=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *\n *     <label for=\"singleSelect\"> Single select with \"not selected\" option and dynamic option values: </label><br>\n *     <select name=\"singleSelect\" id=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"\">---Please select---</option> <!-- not selected / blank option -->\n *       <option value=\"{{data.option1}}\">Option 1</option> <!-- interpolation -->\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *     <tt>singleSelect = {{data.singleSelect}}</tt>\n *\n *     <hr>\n *     <label for=\"multipleSelect\"> Multiple select: </label><br>\n *     <select name=\"multipleSelect\" id=\"multipleSelect\" ng-model=\"data.multipleSelect\" multiple>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *       <option value=\"option-3\">Option 3</option>\n *     </select><br>\n *     <tt>multipleSelect = {{data.multipleSelect}}</tt><br/>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       singleSelect: null,\n *       multipleSelect: [],\n *       option1: 'option-1',\n *      };\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.data.singleSelect = 'nonsense';\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * ### Using `ngRepeat` to generate `select` options\n * <example name=\"ngrepeat-select\" module=\"ngrepeatSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"repeatSelect\"> Repeat select: </label>\n *     <select name=\"repeatSelect\" id=\"repeatSelect\" ng-model=\"data.repeatSelect\">\n *       <option ng-repeat=\"option in data.availableOptions\" value=\"{{option.id}}\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <tt>repeatSelect = {{data.repeatSelect}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngrepeatSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       repeatSelect: null,\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ],\n *      };\n *   }]);\n * </file>\n *</example>\n *\n *\n * ### Using `select` with `ngOptions` and setting a default value\n * See the {@link ngOptions ngOptions documentation} for more `ngOptions` usage examples.\n *\n * <example name=\"select-with-default-values\" module=\"defaultValueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"mySelect\">Make a choice:</label>\n *     <select name=\"mySelect\" id=\"mySelect\"\n *       ng-options=\"option.name for option in data.availableOptions track by option.id\"\n *       ng-model=\"data.selectedOption\"></select>\n *   </form>\n *   <hr>\n *   <tt>option = {{data.selectedOption}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('defaultValueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ],\n *       selectedOption: {id: '3', name: 'Option C'} //This sets the default value of the select in the ui\n *       };\n *   }]);\n * </file>\n *</example>\n *\n *\n * ### Binding `select` to a non-string value via `ngModel` parsing / formatting\n *\n * <example name=\"select-with-non-string-options\" module=\"nonStringSelect\">\n *   <file name=\"index.html\">\n *     <select ng-model=\"model.id\" convert-to-number>\n *       <option value=\"0\">Zero</option>\n *       <option value=\"1\">One</option>\n *       <option value=\"2\">Two</option>\n *     </select>\n *     {{ model }}\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('nonStringSelect', [])\n *       .run(function($rootScope) {\n *         $rootScope.model = { id: 2 };\n *       })\n *       .directive('convertToNumber', function() {\n *         return {\n *           require: 'ngModel',\n *           link: function(scope, element, attrs, ngModel) {\n *             ngModel.$parsers.push(function(val) {\n *               return parseInt(val, 10);\n *             });\n *             ngModel.$formatters.push(function(val) {\n *               return '' + val;\n *             });\n *           }\n *         };\n *       });\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should initialize to model', function() {\n *       var select = element(by.css('select'));\n *       expect(element(by.model('model.id')).$('option:checked').getText()).toEqual('Two');\n *     });\n *   </file>\n * </example>\n *\n */\nvar selectDirective = function() {\n\n  return {\n    restrict: 'E',\n    require: ['select', '?ngModel'],\n    controller: SelectController,\n    priority: 1,\n    link: {\n      pre: selectPreLink,\n      post: selectPostLink\n    }\n  };\n\n  function selectPreLink(scope, element, attr, ctrls) {\n\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n\n      selectCtrl.ngModelCtrl = ngModelCtrl;\n\n      // When the selected item(s) changes we delegate getting the value of the select control\n      // to the `readValue` method, which can be changed if the select can have multiple\n      // selected values or if the options are being generated by `ngOptions`\n      element.on('change', function() {\n        scope.$apply(function() {\n          ngModelCtrl.$setViewValue(selectCtrl.readValue());\n        });\n      });\n\n      // If the select allows multiple values then we need to modify how we read and write\n      // values from and to the control; also what it means for the value to be empty and\n      // we have to add an extra watch since ngModel doesn't work well with arrays - it\n      // doesn't trigger rendering if only an item in the array changes.\n      if (attr.multiple) {\n\n        // Read value now needs to check each option to see if it is selected\n        selectCtrl.readValue = function readMultipleValue() {\n          var array = [];\n          forEach(element.find('option'), function(option) {\n            if (option.selected) {\n              array.push(option.value);\n            }\n          });\n          return array;\n        };\n\n        // Write value now needs to set the selected property of each matching option\n        selectCtrl.writeValue = function writeMultipleValue(value) {\n          var items = new HashMap(value);\n          forEach(element.find('option'), function(option) {\n            option.selected = isDefined(items.get(option.value));\n          });\n        };\n\n        // we have to do it on each watch since ngModel watches reference, but\n        // we need to work of an array, so we need to see if anything was inserted/removed\n        var lastView, lastViewRef = NaN;\n        scope.$watch(function selectMultipleWatch() {\n          if (lastViewRef === ngModelCtrl.$viewValue && !equals(lastView, ngModelCtrl.$viewValue)) {\n            lastView = shallowCopy(ngModelCtrl.$viewValue);\n            ngModelCtrl.$render();\n          }\n          lastViewRef = ngModelCtrl.$viewValue;\n        });\n\n        // If we are a multiple select then value is now a collection\n        // so the meaning of $isEmpty changes\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n\n      }\n    }\n\n    function selectPostLink(scope, element, attrs, ctrls) {\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n\n      // We delegate rendering to the `writeValue` method, which can be changed\n      // if the select can have multiple selected values or if the options are being\n      // generated by `ngOptions`.\n      // This must be done in the postLink fn to prevent $render to be called before\n      // all nodes have been linked correctly.\n      ngModelCtrl.$render = function() {\n        selectCtrl.writeValue(ngModelCtrl.$viewValue);\n      };\n    }\n};\n\n\n// The option directive is purely designed to communicate the existence (or lack of)\n// of dynamically created (and destroyed) option elements to their containing select\n// directive via its controller.\nvar optionDirective = ['$interpolate', function($interpolate) {\n  return {\n    restrict: 'E',\n    priority: 100,\n    compile: function(element, attr) {\n      if (isDefined(attr.value)) {\n        // If the value attribute is defined, check if it contains an interpolation\n        var interpolateValueFn = $interpolate(attr.value, true);\n      } else {\n        // If the value attribute is not defined then we fall back to the\n        // text content of the option element, which may be interpolated\n        var interpolateTextFn = $interpolate(element.text(), true);\n        if (!interpolateTextFn) {\n          attr.$set('value', element.text());\n        }\n      }\n\n      return function(scope, element, attr) {\n        // This is an optimization over using ^^ since we don't want to have to search\n        // all the way to the root of the DOM for every single option element\n        var selectCtrlName = '$selectController',\n            parent = element.parent(),\n            selectCtrl = parent.data(selectCtrlName) ||\n              parent.parent().data(selectCtrlName); // in case we are in optgroup\n\n        if (selectCtrl) {\n          selectCtrl.registerOption(scope, element, attr, interpolateValueFn, interpolateTextFn);\n        }\n      };\n    }\n  };\n}];\n\nvar styleDirective = valueFn({\n  restrict: 'E',\n  terminal: false\n});\n\n/**\n * @ngdoc directive\n * @name ngRequired\n * @restrict A\n *\n * @description\n *\n * ngRequired adds the required {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for {@link input `input`} and {@link select `select`} controls, but can also be\n * applied to custom controls.\n *\n * The directive sets the `required` attribute on the element if the Angular expression inside\n * `ngRequired` evaluates to true. A special directive for setting `required` is necessary because we\n * cannot use interpolation inside `required`. See the {@link guide/interpolation interpolation guide}\n * for more info.\n *\n * The validator will set the `required` error key to true if the `required` attribute is set and\n * calling {@link ngModel.NgModelController#$isEmpty `NgModelController.$isEmpty`} with the\n * {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`} returns `true`. For example, the\n * `$isEmpty()` implementation for `input[text]` checks the length of the `$viewValue`. When developing\n * custom controls, `$isEmpty()` can be overwritten to account for a $viewValue that is not string-based.\n *\n * @example\n * <example name=\"ngRequiredDirective\" module=\"ngRequiredExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngRequiredExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.required = true;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"required\">Toggle required: </label>\n *         <input type=\"checkbox\" ng-model=\"required\" id=\"required\" />\n *         <br>\n *         <label for=\"input\">This input must be filled if `required` is true: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-required=\"required\" /><br>\n *         <hr>\n *         required error set? = <code>{{form.input.$error.required}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var required = element(by.binding('form.input.$error.required'));\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should set the required error', function() {\n         expect(required.getText()).toContain('true');\n\n         input.sendKeys('123');\n         expect(required.getText()).not.toContain('true');\n         expect(model.getText()).toContain('123');\n       });\n *   </file>\n * </example>\n */\nvar requiredDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n      attr.required = true; // force truthy in case we are on non input element\n\n      ctrl.$validators.required = function(modelValue, viewValue) {\n        return !attr.required || !ctrl.$isEmpty(viewValue);\n      };\n\n      attr.$observe('required', function() {\n        ctrl.$validate();\n      });\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngPattern\n *\n * @description\n *\n * ngPattern adds the pattern {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `pattern` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * does not match a RegExp which is obtained by evaluating the Angular expression given in the\n * `ngPattern` attribute value:\n * * If the expression evaluates to a RegExp object, then this is used directly.\n * * If the expression evaluates to a string, then it will be converted to a RegExp after wrapping it\n * in `^` and `$` characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n *\n * <div class=\"alert alert-info\">\n * **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n * start at the index of the last search's match, thus not taking the whole input value into\n * account.\n * </div>\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `pattern` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngPattern` does not set the `pattern` attribute and therefore HTML5 constraint validation is\n *     not available.\n *   </li>\n *   <li>\n *     The `ngPattern` attribute must be an expression, while the `pattern` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngPatternDirective\" module=\"ngPatternExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngPatternExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.regex = '\\\\d+';\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"regex\">Set a pattern (regex string): </label>\n *         <input type=\"text\" ng-model=\"regex\" id=\"regex\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current pattern: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-pattern=\"regex\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default pattern', function() {\n         input.sendKeys('aaa');\n         expect(model.getText()).not.toContain('aaa');\n\n         input.clear().then(function() {\n           input.sendKeys('123');\n           expect(model.getText()).toContain('123');\n         });\n       });\n *   </file>\n * </example>\n */\nvar patternDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var regexp, patternExp = attr.ngPattern || attr.pattern;\n      attr.$observe('pattern', function(regex) {\n        if (isString(regex) && regex.length > 0) {\n          regex = new RegExp('^' + regex + '$');\n        }\n\n        if (regex && !regex.test) {\n          throw minErr('ngPattern')('noregexp',\n            'Expected {0} to be a RegExp but was {1}. Element: {2}', patternExp,\n            regex, startingTag(elm));\n        }\n\n        regexp = regex || undefined;\n        ctrl.$validate();\n      });\n\n      ctrl.$validators.pattern = function(modelValue, viewValue) {\n        // HTML5 pattern constraint validates the input value, so we validate the viewValue\n        return ctrl.$isEmpty(viewValue) || isUndefined(regexp) || regexp.test(viewValue);\n      };\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngMaxlength\n *\n * @description\n *\n * ngMaxlength adds the maxlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `maxlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is longer than the integer obtained by evaluating the Angular expression given in the\n * `ngMaxlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `maxlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMaxlength` does not set the `maxlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMaxlength` attribute must be an expression, while the `maxlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMaxlengthDirective\" module=\"ngMaxlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMaxlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.maxlength = 5;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"maxlength\">Set a maxlength: </label>\n *         <input type=\"number\" ng-model=\"maxlength\" id=\"maxlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current maxlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-maxlength=\"maxlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default maxlength', function() {\n         input.sendKeys('abcdef');\n         expect(model.getText()).not.toContain('abcdef');\n\n         input.clear().then(function() {\n           input.sendKeys('abcde');\n           expect(model.getText()).toContain('abcde');\n         });\n       });\n *   </file>\n * </example>\n */\nvar maxlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var maxlength = -1;\n      attr.$observe('maxlength', function(value) {\n        var intVal = toInt(value);\n        maxlength = isNaN(intVal) ? -1 : intVal;\n        ctrl.$validate();\n      });\n      ctrl.$validators.maxlength = function(modelValue, viewValue) {\n        return (maxlength < 0) || ctrl.$isEmpty(viewValue) || (viewValue.length <= maxlength);\n      };\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngMinlength\n *\n * @description\n *\n * ngMinlength adds the minlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `minlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is shorter than the integer obtained by evaluating the Angular expression given in the\n * `ngMinlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `minlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMinlength` does not set the `minlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMinlength` value must be an expression, while the `minlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMinlengthDirective\" module=\"ngMinlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMinlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.minlength = 3;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"minlength\">Set a minlength: </label>\n *         <input type=\"number\" ng-model=\"minlength\" id=\"minlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current minlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-minlength=\"minlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default minlength', function() {\n         input.sendKeys('ab');\n         expect(model.getText()).not.toContain('ab');\n\n         input.sendKeys('abc');\n         expect(model.getText()).toContain('abc');\n       });\n *   </file>\n * </example>\n */\nvar minlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var minlength = 0;\n      attr.$observe('minlength', function(value) {\n        minlength = toInt(value) || 0;\n        ctrl.$validate();\n      });\n      ctrl.$validators.minlength = function(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || viewValue.length >= minlength;\n      };\n    }\n  };\n};\n\nif (window.angular.bootstrap) {\n  //AngularJS is already loaded, so we can return here...\n  if (window.console) {\n    console.log('WARNING: Tried to load angular more than once.');\n  }\n  return;\n}\n\n//try to bind to jquery now so that one can write jqLite(document).ready()\n//but we will rebind on bootstrap again.\nbindJQuery();\n\npublishExternalAPI(angular);\n\nangular.module(\"ngLocale\", [], [\"$provide\", function($provide) {\nvar PLURAL_CATEGORY = {ZERO: \"zero\", ONE: \"one\", TWO: \"two\", FEW: \"few\", MANY: \"many\", OTHER: \"other\"};\nfunction getDecimals(n) {\n  n = n + '';\n  var i = n.indexOf('.');\n  return (i == -1) ? 0 : n.length - i - 1;\n}\n\nfunction getVF(n, opt_precision) {\n  var v = opt_precision;\n\n  if (undefined === v) {\n    v = Math.min(getDecimals(n), 3);\n  }\n\n  var base = Math.pow(10, v);\n  var f = ((n * base) | 0) % base;\n  return {v: v, f: f};\n}\n\n$provide.value(\"$locale\", {\n  \"DATETIME_FORMATS\": {\n    \"AMPMS\": [\n      \"AM\",\n      \"PM\"\n    ],\n    \"DAY\": [\n      \"Sunday\",\n      \"Monday\",\n      \"Tuesday\",\n      \"Wednesday\",\n      \"Thursday\",\n      \"Friday\",\n      \"Saturday\"\n    ],\n    \"ERANAMES\": [\n      \"Before Christ\",\n      \"Anno Domini\"\n    ],\n    \"ERAS\": [\n      \"BC\",\n      \"AD\"\n    ],\n    \"FIRSTDAYOFWEEK\": 6,\n    \"MONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"SHORTDAY\": [\n      \"Sun\",\n      \"Mon\",\n      \"Tue\",\n      \"Wed\",\n      \"Thu\",\n      \"Fri\",\n      \"Sat\"\n    ],\n    \"SHORTMONTH\": [\n      \"Jan\",\n      \"Feb\",\n      \"Mar\",\n      \"Apr\",\n      \"May\",\n      \"Jun\",\n      \"Jul\",\n      \"Aug\",\n      \"Sep\",\n      \"Oct\",\n      \"Nov\",\n      \"Dec\"\n    ],\n    \"STANDALONEMONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"WEEKENDRANGE\": [\n      5,\n      6\n    ],\n    \"fullDate\": \"EEEE, MMMM d, y\",\n    \"longDate\": \"MMMM d, y\",\n    \"medium\": \"MMM d, y h:mm:ss a\",\n    \"mediumDate\": \"MMM d, y\",\n    \"mediumTime\": \"h:mm:ss a\",\n    \"short\": \"M/d/yy h:mm a\",\n    \"shortDate\": \"M/d/yy\",\n    \"shortTime\": \"h:mm a\"\n  },\n  \"NUMBER_FORMATS\": {\n    \"CURRENCY_SYM\": \"$\",\n    \"DECIMAL_SEP\": \".\",\n    \"GROUP_SEP\": \",\",\n    \"PATTERNS\": [\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 3,\n        \"minFrac\": 0,\n        \"minInt\": 1,\n        \"negPre\": \"-\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\",\n        \"posSuf\": \"\"\n      },\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 2,\n        \"minFrac\": 2,\n        \"minInt\": 1,\n        \"negPre\": \"-\\u00a4\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\\u00a4\",\n        \"posSuf\": \"\"\n      }\n    ]\n  },\n  \"id\": \"en-us\",\n  \"localeID\": \"en_US\",\n  \"pluralCat\": function(n, opt_precision) {  var i = n | 0;  var vf = getVF(n, opt_precision);  if (i == 1 && vf.v == 0) {    return PLURAL_CATEGORY.ONE;  }  return PLURAL_CATEGORY.OTHER;}\n});\n}]);\n\n  jqLite(document).ready(function() {\n    angularInit(document, bootstrap);\n  });\n\n})(window, document);\n\n!window.angular.$$csp().noInlineStyle && window.angular.element(document.head).prepend('<style type=\"text/css\">@charset \"UTF-8\";[ng\\\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');"
  },
  {
    "path": "test/angular/1.5/angular-animate.js",
    "content": "/**\n * @license AngularJS v1.5.11\n * (c) 2010-2017 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\nvar ELEMENT_NODE = 1;\nvar COMMENT_NODE = 8;\n\nvar ADD_CLASS_SUFFIX = '-add';\nvar REMOVE_CLASS_SUFFIX = '-remove';\nvar EVENT_CLASS_PREFIX = 'ng-';\nvar ACTIVE_CLASS_SUFFIX = '-active';\nvar PREPARE_CLASS_SUFFIX = '-prepare';\n\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\nvar NG_ANIMATE_CHILDREN_DATA = '$$ngAnimateChildren';\n\n// Detect proper transitionend/animationend event names.\nvar CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;\n\n// If unprefixed events are not supported but webkit-prefixed are, use the latter.\n// Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.\n// Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`\n// but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.\n// Register both events in case `window.onanimationend` is not supported because of that,\n// do the same for `transitionend` as Safari is likely to exhibit similar behavior.\n// Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit\n// therefore there is no reason to test anymore for other vendor prefixes:\n// http://caniuse.com/#search=transition\nif ((window.ontransitionend === undefined) && (window.onwebkittransitionend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  TRANSITION_PROP = 'WebkitTransition';\n  TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';\n} else {\n  TRANSITION_PROP = 'transition';\n  TRANSITIONEND_EVENT = 'transitionend';\n}\n\nif ((window.onanimationend === undefined) && (window.onwebkitanimationend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  ANIMATION_PROP = 'WebkitAnimation';\n  ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';\n} else {\n  ANIMATION_PROP = 'animation';\n  ANIMATIONEND_EVENT = 'animationend';\n}\n\nvar DURATION_KEY = 'Duration';\nvar PROPERTY_KEY = 'Property';\nvar DELAY_KEY = 'Delay';\nvar TIMING_KEY = 'TimingFunction';\nvar ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';\nvar ANIMATION_PLAYSTATE_KEY = 'PlayState';\nvar SAFE_FAST_FORWARD_DURATION_VALUE = 9999;\n\nvar ANIMATION_DELAY_PROP = ANIMATION_PROP + DELAY_KEY;\nvar ANIMATION_DURATION_PROP = ANIMATION_PROP + DURATION_KEY;\nvar TRANSITION_DELAY_PROP = TRANSITION_PROP + DELAY_KEY;\nvar TRANSITION_DURATION_PROP = TRANSITION_PROP + DURATION_KEY;\n\nvar ngMinErr = angular.$$minErr('ng');\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction packageStyles(options) {\n  var styles = {};\n  if (options && (options.to || options.from)) {\n    styles.to = options.to;\n    styles.from = options.from;\n  }\n  return styles;\n}\n\nfunction pendClasses(classes, fix, isPrefix) {\n  var className = '';\n  classes = isArray(classes)\n      ? classes\n      : classes && isString(classes) && classes.length\n          ? classes.split(/\\s+/)\n          : [];\n  forEach(classes, function(klass, i) {\n    if (klass && klass.length > 0) {\n      className += (i > 0) ? ' ' : '';\n      className += isPrefix ? fix + klass\n                            : klass + fix;\n    }\n  });\n  return className;\n}\n\nfunction removeFromArray(arr, val) {\n  var index = arr.indexOf(val);\n  if (val >= 0) {\n    arr.splice(index, 1);\n  }\n}\n\nfunction stripCommentsFromElement(element) {\n  if (element instanceof jqLite) {\n    switch (element.length) {\n      case 0:\n        return element;\n\n      case 1:\n        // there is no point of stripping anything if the element\n        // is the only element within the jqLite wrapper.\n        // (it's important that we retain the element instance.)\n        if (element[0].nodeType === ELEMENT_NODE) {\n          return element;\n        }\n        break;\n\n      default:\n        return jqLite(extractElementNode(element));\n    }\n  }\n\n  if (element.nodeType === ELEMENT_NODE) {\n    return jqLite(element);\n  }\n}\n\nfunction extractElementNode(element) {\n  if (!element[0]) return element;\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction $$addClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.addClass(elm, className);\n  });\n}\n\nfunction $$removeClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.removeClass(elm, className);\n  });\n}\n\nfunction applyAnimationClassesFactory($$jqLite) {\n  return function(element, options) {\n    if (options.addClass) {\n      $$addClass($$jqLite, element, options.addClass);\n      options.addClass = null;\n    }\n    if (options.removeClass) {\n      $$removeClass($$jqLite, element, options.removeClass);\n      options.removeClass = null;\n    }\n  };\n}\n\nfunction prepareAnimationOptions(options) {\n  options = options || {};\n  if (!options.$$prepared) {\n    var domOperation = options.domOperation || noop;\n    options.domOperation = function() {\n      options.$$domOperationFired = true;\n      domOperation();\n      domOperation = noop;\n    };\n    options.$$prepared = true;\n  }\n  return options;\n}\n\nfunction applyAnimationStyles(element, options) {\n  applyAnimationFromStyles(element, options);\n  applyAnimationToStyles(element, options);\n}\n\nfunction applyAnimationFromStyles(element, options) {\n  if (options.from) {\n    element.css(options.from);\n    options.from = null;\n  }\n}\n\nfunction applyAnimationToStyles(element, options) {\n  if (options.to) {\n    element.css(options.to);\n    options.to = null;\n  }\n}\n\nfunction mergeAnimationDetails(element, oldAnimation, newAnimation) {\n  var target = oldAnimation.options || {};\n  var newOptions = newAnimation.options || {};\n\n  var toAdd = (target.addClass || '') + ' ' + (newOptions.addClass || '');\n  var toRemove = (target.removeClass || '') + ' ' + (newOptions.removeClass || '');\n  var classes = resolveElementClasses(element.attr('class'), toAdd, toRemove);\n\n  if (newOptions.preparationClasses) {\n    target.preparationClasses = concatWithSpace(newOptions.preparationClasses, target.preparationClasses);\n    delete newOptions.preparationClasses;\n  }\n\n  // noop is basically when there is no callback; otherwise something has been set\n  var realDomOperation = target.domOperation !== noop ? target.domOperation : null;\n\n  extend(target, newOptions);\n\n  // TODO(matsko or sreeramu): proper fix is to maintain all animation callback in array and call at last,but now only leave has the callback so no issue with this.\n  if (realDomOperation) {\n    target.domOperation = realDomOperation;\n  }\n\n  if (classes.addClass) {\n    target.addClass = classes.addClass;\n  } else {\n    target.addClass = null;\n  }\n\n  if (classes.removeClass) {\n    target.removeClass = classes.removeClass;\n  } else {\n    target.removeClass = null;\n  }\n\n  oldAnimation.addClass = target.addClass;\n  oldAnimation.removeClass = target.removeClass;\n\n  return target;\n}\n\nfunction resolveElementClasses(existing, toAdd, toRemove) {\n  var ADD_CLASS = 1;\n  var REMOVE_CLASS = -1;\n\n  var flags = {};\n  existing = splitClassesToLookup(existing);\n\n  toAdd = splitClassesToLookup(toAdd);\n  forEach(toAdd, function(value, key) {\n    flags[key] = ADD_CLASS;\n  });\n\n  toRemove = splitClassesToLookup(toRemove);\n  forEach(toRemove, function(value, key) {\n    flags[key] = flags[key] === ADD_CLASS ? null : REMOVE_CLASS;\n  });\n\n  var classes = {\n    addClass: '',\n    removeClass: ''\n  };\n\n  forEach(flags, function(val, klass) {\n    var prop, allow;\n    if (val === ADD_CLASS) {\n      prop = 'addClass';\n      allow = !existing[klass] || existing[klass + REMOVE_CLASS_SUFFIX];\n    } else if (val === REMOVE_CLASS) {\n      prop = 'removeClass';\n      allow = existing[klass] || existing[klass + ADD_CLASS_SUFFIX];\n    }\n    if (allow) {\n      if (classes[prop].length) {\n        classes[prop] += ' ';\n      }\n      classes[prop] += klass;\n    }\n  });\n\n  function splitClassesToLookup(classes) {\n    if (isString(classes)) {\n      classes = classes.split(' ');\n    }\n\n    var obj = {};\n    forEach(classes, function(klass) {\n      // sometimes the split leaves empty string values\n      // incase extra spaces were applied to the options\n      if (klass.length) {\n        obj[klass] = true;\n      }\n    });\n    return obj;\n  }\n\n  return classes;\n}\n\nfunction getDomNode(element) {\n  return (element instanceof jqLite) ? element[0] : element;\n}\n\nfunction applyGeneratedPreparationClasses(element, event, options) {\n  var classes = '';\n  if (event) {\n    classes = pendClasses(event, EVENT_CLASS_PREFIX, true);\n  }\n  if (options.addClass) {\n    classes = concatWithSpace(classes, pendClasses(options.addClass, ADD_CLASS_SUFFIX));\n  }\n  if (options.removeClass) {\n    classes = concatWithSpace(classes, pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX));\n  }\n  if (classes.length) {\n    options.preparationClasses = classes;\n    element.addClass(classes);\n  }\n}\n\nfunction clearGeneratedClasses(element, options) {\n  if (options.preparationClasses) {\n    element.removeClass(options.preparationClasses);\n    options.preparationClasses = null;\n  }\n  if (options.activeClasses) {\n    element.removeClass(options.activeClasses);\n    options.activeClasses = null;\n  }\n}\n\nfunction blockTransitions(node, duration) {\n  // we use a negative delay value since it performs blocking\n  // yet it doesn't kill any existing transitions running on the\n  // same element which makes this safe for class-based animations\n  var value = duration ? '-' + duration + 's' : '';\n  applyInlineStyle(node, [TRANSITION_DELAY_PROP, value]);\n  return [TRANSITION_DELAY_PROP, value];\n}\n\nfunction blockKeyframeAnimations(node, applyBlock) {\n  var value = applyBlock ? 'paused' : '';\n  var key = ANIMATION_PROP + ANIMATION_PLAYSTATE_KEY;\n  applyInlineStyle(node, [key, value]);\n  return [key, value];\n}\n\nfunction applyInlineStyle(node, styleTuple) {\n  var prop = styleTuple[0];\n  var value = styleTuple[1];\n  node.style[prop] = value;\n}\n\nfunction concatWithSpace(a,b) {\n  if (!a) return b;\n  if (!b) return a;\n  return a + ' ' + b;\n}\n\nvar $$rAFSchedulerFactory = ['$$rAF', function($$rAF) {\n  var queue, cancelFn;\n\n  function scheduler(tasks) {\n    // we make a copy since RAFScheduler mutates the state\n    // of the passed in array variable and this would be difficult\n    // to track down on the outside code\n    queue = queue.concat(tasks);\n    nextTick();\n  }\n\n  queue = scheduler.queue = [];\n\n  /* waitUntilQuiet does two things:\n   * 1. It will run the FINAL `fn` value only when an uncanceled RAF has passed through\n   * 2. It will delay the next wave of tasks from running until the quiet `fn` has run.\n   *\n   * The motivation here is that animation code can request more time from the scheduler\n   * before the next wave runs. This allows for certain DOM properties such as classes to\n   * be resolved in time for the next animation to run.\n   */\n  scheduler.waitUntilQuiet = function(fn) {\n    if (cancelFn) cancelFn();\n\n    cancelFn = $$rAF(function() {\n      cancelFn = null;\n      fn();\n      nextTick();\n    });\n  };\n\n  return scheduler;\n\n  function nextTick() {\n    if (!queue.length) return;\n\n    var items = queue.shift();\n    for (var i = 0; i < items.length; i++) {\n      items[i]();\n    }\n\n    if (!cancelFn) {\n      $$rAF(function() {\n        if (!cancelFn) nextTick();\n      });\n    }\n  }\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateChildren\n * @restrict AE\n * @element ANY\n *\n * @description\n *\n * ngAnimateChildren allows you to specify that children of this element should animate even if any\n * of the children's parents are currently animating. By default, when an element has an active `enter`, `leave`, or `move`\n * (structural) animation, child elements that also have an active structural animation are not animated.\n *\n * Note that even if `ngAnimateChildren` is set, no child animations will run when the parent element is removed from the DOM (`leave` animation).\n *\n *\n * @param {string} ngAnimateChildren If the value is empty, `true` or `on`,\n *     then child animations are allowed. If the value is `false`, child animations are not allowed.\n *\n * @example\n * <example module=\"ngAnimateChildren\" name=\"ngAnimateChildren\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainController as main\">\n         <label>Show container? <input type=\"checkbox\" ng-model=\"main.enterElement\" /></label>\n         <label>Animate children? <input type=\"checkbox\" ng-model=\"main.animateChildren\" /></label>\n         <hr>\n         <div ng-animate-children=\"{{main.animateChildren}}\">\n           <div ng-if=\"main.enterElement\" class=\"container\">\n             List of items:\n             <div ng-repeat=\"item in [0, 1, 2, 3]\" class=\"item\">Item {{item}}</div>\n           </div>\n         </div>\n       </div>\n     </file>\n     <file name=\"animations.css\">\n\n      .container.ng-enter,\n      .container.ng-leave {\n        transition: all ease 1.5s;\n      }\n\n      .container.ng-enter,\n      .container.ng-leave-active {\n        opacity: 0;\n      }\n\n      .container.ng-leave,\n      .container.ng-enter-active {\n        opacity: 1;\n      }\n\n      .item {\n        background: firebrick;\n        color: #FFF;\n        margin-bottom: 10px;\n      }\n\n      .item.ng-enter,\n      .item.ng-leave {\n        transition: transform 1.5s ease;\n      }\n\n      .item.ng-enter {\n        transform: translateX(50px);\n      }\n\n      .item.ng-enter-active {\n        transform: translateX(0);\n      }\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngAnimateChildren', ['ngAnimate'])\n        .controller('MainController', function MainController() {\n          this.animateChildren = false;\n          this.enterElement = false;\n        });\n    </file>\n  </example>\n */\nvar $$AnimateChildrenDirective = ['$interpolate', function($interpolate) {\n  return {\n    link: function(scope, element, attrs) {\n      var val = attrs.ngAnimateChildren;\n      if (isString(val) && val.length === 0) { //empty attribute\n        element.data(NG_ANIMATE_CHILDREN_DATA, true);\n      } else {\n        // Interpolate and set the value, so that it is available to\n        // animations that run right after compilation\n        setData($interpolate(val)(scope));\n        attrs.$observe('ngAnimateChildren', setData);\n      }\n\n      function setData(value) {\n        value = value === 'on' || value === 'true';\n        element.data(NG_ANIMATE_CHILDREN_DATA, value);\n      }\n    }\n  };\n}];\n\n/* exported $AnimateCssProvider */\n\nvar ANIMATE_TIMER_KEY = '$$animateCss';\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n *\n * @description\n * The `$animateCss` service is a useful utility to trigger customized CSS-based transitions/keyframes\n * from a JavaScript-based animation or directly from a directive. The purpose of `$animateCss` is NOT\n * to side-step how `$animate` and ngAnimate work, but the goal is to allow pre-existing animations or\n * directives to create more complex animations that can be purely driven using CSS code.\n *\n * Note that only browsers that support CSS transitions and/or keyframe animations are capable of\n * rendering animations triggered via `$animateCss` (bad news for IE9 and lower).\n *\n * ## Usage\n * Once again, `$animateCss` is designed to be used inside of a registered JavaScript animation that\n * is powered by ngAnimate. It is possible to use `$animateCss` directly inside of a directive, however,\n * any automatic control over cancelling animations and/or preventing animations from being run on\n * child elements will not be handled by Angular. For this to work as expected, please use `$animate` to\n * trigger the animation and then setup a JavaScript animation that injects `$animateCss` to trigger\n * the CSS animation.\n *\n * The example below shows how we can create a folding animation on an element using `ng-if`:\n *\n * ```html\n * <!-- notice the `fold-animation` CSS class -->\n * <div ng-if=\"onOff\" class=\"fold-animation\">\n *   This element will go BOOM\n * </div>\n * <button ng-click=\"onOff=true\">Fold In</button>\n * ```\n *\n * Now we create the **JavaScript animation** that will trigger the CSS transition:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * ## More Advanced Uses\n *\n * `$animateCss` is the underlying code that ngAnimate uses to power **CSS-based animations** behind the scenes. Therefore CSS hooks\n * like `.ng-EVENT`, `.ng-EVENT-active`, `.ng-EVENT-stagger` are all features that can be triggered using `$animateCss` via JavaScript code.\n *\n * This also means that just about any combination of adding classes, removing classes, setting styles, dynamically setting a keyframe animation,\n * applying a hardcoded duration or delay value, changing the animation easing or applying a stagger animation are all options that work with\n * `$animateCss`. The service itself is smart enough to figure out the combination of options and examine the element styling properties in order\n * to provide a working animation that will run in CSS.\n *\n * The example below showcases a more advanced version of the `.fold-animation` from the example above:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         addClass: 'red large-text pulse-twice',\n *         easing: 'ease-out',\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Since we're adding/removing CSS classes then the CSS transition will also pick those up:\n *\n * ```css\n * /&#42; since a hardcoded duration value of 1 was provided in the JavaScript animation code,\n * the CSS classes below will be transitioned despite them being defined as regular CSS classes &#42;/\n * .red { background:red; }\n * .large-text { font-size:20px; }\n *\n * /&#42; we can also use a keyframe animation and $animateCss will make it work alongside the transition &#42;/\n * .pulse-twice {\n *   animation: 0.5s pulse linear 2;\n *   -webkit-animation: 0.5s pulse linear 2;\n * }\n *\n * @keyframes pulse {\n *   from { transform: scale(0.5); }\n *   to { transform: scale(1.5); }\n * }\n *\n * @-webkit-keyframes pulse {\n *   from { -webkit-transform: scale(0.5); }\n *   to { -webkit-transform: scale(1.5); }\n * }\n * ```\n *\n * Given this complex combination of CSS classes, styles and options, `$animateCss` will figure everything out and make the animation happen.\n *\n * ## How the Options are handled\n *\n * `$animateCss` is very versatile and intelligent when it comes to figuring out what configurations to apply to the element to ensure the animation\n * works with the options provided. Say for example we were adding a class that contained a keyframe value and we wanted to also animate some inline\n * styles using the `from` and `to` properties.\n *\n * ```js\n * var animator = $animateCss(element, {\n *   from: { background:'red' },\n *   to: { background:'blue' }\n * });\n * animator.start();\n * ```\n *\n * ```css\n * .rotating-animation {\n *   animation:0.5s rotate linear;\n *   -webkit-animation:0.5s rotate linear;\n * }\n *\n * @keyframes rotate {\n *   from { transform: rotate(0deg); }\n *   to { transform: rotate(360deg); }\n * }\n *\n * @-webkit-keyframes rotate {\n *   from { -webkit-transform: rotate(0deg); }\n *   to { -webkit-transform: rotate(360deg); }\n * }\n * ```\n *\n * The missing pieces here are that we do not have a transition set (within the CSS code nor within the `$animateCss` options) and the duration of the animation is\n * going to be detected from what the keyframe styles on the CSS class are. In this event, `$animateCss` will automatically create an inline transition\n * style matching the duration detected from the keyframe style (which is present in the CSS class that is being added) and then prepare both the transition\n * and keyframe animations to run in parallel on the element. Then when the animation is underway the provided `from` and `to` CSS styles will be applied\n * and spread across the transition and keyframe animation.\n *\n * ## What is returned\n *\n * `$animateCss` works in two stages: a preparation phase and an animation phase. Therefore when `$animateCss` is first called it will NOT actually\n * start the animation. All that is going on here is that the element is being prepared for the animation (which means that the generated CSS classes are\n * added and removed on the element). Once `$animateCss` is called it will return an object with the following properties:\n *\n * ```js\n * var animator = $animateCss(element, { ... });\n * ```\n *\n * Now what do the contents of our `animator` variable look like:\n *\n * ```js\n * {\n *   // starts the animation\n *   start: Function,\n *\n *   // ends (aborts) the animation\n *   end: Function\n * }\n * ```\n *\n * To actually start the animation we need to run `animation.start()` which will then return a promise that we can hook into to detect when the animation ends.\n * If we choose not to run the animation then we MUST run `animation.end()` to perform a cleanup on the element (since some CSS classes and styles may have been\n * applied to the element during the preparation phase). Note that all other properties such as duration, delay, transitions and keyframes are just properties\n * and that changing them will not reconfigure the parameters of the animation.\n *\n * ### runner.done() vs runner.then()\n * It is documented that `animation.start()` will return a promise object and this is true, however, there is also an additional method available on the\n * runner called `.done(callbackFn)`. The done method works the same as `.finally(callbackFn)`, however, it does **not trigger a digest to occur**.\n * Therefore, for performance reasons, it's always best to use `runner.done(callback)` instead of `runner.then()`, `runner.catch()` or `runner.finally()`\n * unless you really need a digest to kick off afterwards.\n *\n * Keep in mind that, to make this easier, ngAnimate has tweaked the JS animations API to recognize when a runner instance is returned from $animateCss\n * (so there is no need to call `runner.done(doneFn)` inside of your JavaScript animation code).\n * Check the {@link ngAnimate.$animateCss#usage animation code above} to see how this works.\n *\n * @param {DOMElement} element the element that will be animated\n * @param {object} options the animation-related options that will be applied during the animation\n *\n * * `event` - The DOM event (e.g. enter, leave, move). When used, a generated CSS class of `ng-EVENT` and `ng-EVENT-active` will be applied\n * to the element during the animation. Multiple events can be provided when spaces are used as a separator. (Note that this will not perform any DOM operation.)\n * * `structural` - Indicates that the `ng-` prefix will be added to the event class. Setting to `false` or omitting will turn `ng-EVENT` and\n * `ng-EVENT-active` in `EVENT` and `EVENT-active`. Unused if `event` is omitted.\n * * `easing` - The CSS easing value that will be applied to the transition or keyframe animation (or both).\n * * `transitionStyle` - The raw CSS transition style that will be used (e.g. `1s linear all`).\n * * `keyframeStyle` - The raw CSS keyframe animation style that will be used (e.g. `1s my_animation linear`).\n * * `from` - The starting CSS styles (a key/value object) that will be applied at the start of the animation.\n * * `to` - The ending CSS styles (a key/value object) that will be applied across the animation via a CSS transition.\n * * `addClass` - A space separated list of CSS classes that will be added to the element and spread across the animation.\n * * `removeClass` - A space separated list of CSS classes that will be removed from the element and spread across the animation.\n * * `duration` - A number value representing the total duration of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `0`\n * is provided then the animation will be skipped entirely.\n * * `delay` - A number value representing the total delay of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `true` is\n * used then whatever delay value is detected from the CSS classes will be mirrored on the elements styles (e.g. by setting delay true then the style value\n * of the element will be `transition-delay: DETECTED_VALUE`). Using `true` is useful when you want the CSS classes and inline styles to all share the same\n * CSS delay value.\n * * `stagger` - A numeric time value representing the delay between successively animated elements\n * ({@link ngAnimate#css-staggering-animations Click here to learn how CSS-based staggering works in ngAnimate.})\n * * `staggerIndex` - The numeric index representing the stagger item (e.g. a value of 5 is equal to the sixth item in the stagger; therefore when a\n *   `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)\n * * `applyClassesEarly` - Whether or not the classes being added or removed will be used when detecting the animation. This is set by `$animate` when enter/leave/move animations are fired to ensure that the CSS classes are resolved in time. (Note that this will prevent any transitions from occurring on the classes being added and removed.)\n * * `cleanupStyles` - Whether or not the provided `from` and `to` styles will be removed once\n *    the animation is closed. This is useful for when the styles are used purely for the sake of\n *    the animation and do not have a lasting visual effect on the element (e.g. a collapse and open animation).\n *    By default this value is set to `false`.\n *\n * @return {object} an object with start and end methods and details about the animation.\n *\n * * `start` - The method to start the animation. This will return a `Promise` when called.\n * * `end` - This method will cancel the animation and remove all applied CSS classes and styles.\n */\nvar ONE_SECOND = 1000;\n\nvar ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\nvar CLOSING_TIME_BUFFER = 1.5;\n\nvar DETECT_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  transitionProperty:      TRANSITION_PROP + PROPERTY_KEY,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP,\n  animationIterationCount: ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY\n};\n\nvar DETECT_STAGGER_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP\n};\n\nfunction getCssKeyframeDurationStyle(duration) {\n  return [ANIMATION_DURATION_PROP, duration + 's'];\n}\n\nfunction getCssDelayStyle(delay, isKeyframeAnimation) {\n  var prop = isKeyframeAnimation ? ANIMATION_DELAY_PROP : TRANSITION_DELAY_PROP;\n  return [prop, delay + 's'];\n}\n\nfunction computeCssStyles($window, element, properties) {\n  var styles = Object.create(null);\n  var detectedStyles = $window.getComputedStyle(element) || {};\n  forEach(properties, function(formalStyleName, actualStyleName) {\n    var val = detectedStyles[formalStyleName];\n    if (val) {\n      var c = val.charAt(0);\n\n      // only numerical-based values have a negative sign or digit as the first value\n      if (c === '-' || c === '+' || c >= 0) {\n        val = parseMaxTime(val);\n      }\n\n      // by setting this to null in the event that the delay is not set or is set directly as 0\n      // then we can still allow for negative values to be used later on and not mistake this\n      // value for being greater than any other negative value.\n      if (val === 0) {\n        val = null;\n      }\n      styles[actualStyleName] = val;\n    }\n  });\n\n  return styles;\n}\n\nfunction parseMaxTime(str) {\n  var maxValue = 0;\n  var values = str.split(/\\s*,\\s*/);\n  forEach(values, function(value) {\n    // it's always safe to consider only second values and omit `ms` values since\n    // getComputedStyle will always handle the conversion for us\n    if (value.charAt(value.length - 1) === 's') {\n      value = value.substring(0, value.length - 1);\n    }\n    value = parseFloat(value) || 0;\n    maxValue = maxValue ? Math.max(value, maxValue) : value;\n  });\n  return maxValue;\n}\n\nfunction truthyTimingValue(val) {\n  return val === 0 || val != null;\n}\n\nfunction getCssTransitionDurationStyle(duration, applyOnlyDuration) {\n  var style = TRANSITION_PROP;\n  var value = duration + 's';\n  if (applyOnlyDuration) {\n    style += DURATION_KEY;\n  } else {\n    value += ' linear all';\n  }\n  return [style, value];\n}\n\nfunction createLocalCacheLookup() {\n  var cache = Object.create(null);\n  return {\n    flush: function() {\n      cache = Object.create(null);\n    },\n\n    count: function(key) {\n      var entry = cache[key];\n      return entry ? entry.total : 0;\n    },\n\n    get: function(key) {\n      var entry = cache[key];\n      return entry && entry.value;\n    },\n\n    put: function(key, value) {\n      if (!cache[key]) {\n        cache[key] = { total: 1, value: value };\n      } else {\n        cache[key].total++;\n      }\n    }\n  };\n}\n\n// we do not reassign an already present style value since\n// if we detect the style property value again we may be\n// detecting styles that were added via the `from` styles.\n// We make use of `isDefined` here since an empty string\n// or null value (which is what getPropertyValue will return\n// for a non-existing style) will still be marked as a valid\n// value for the style (a falsy value implies that the style\n// is to be removed at the end of the animation). If we had a simple\n// \"OR\" statement then it would not be enough to catch that.\nfunction registerRestorableStyles(backup, node, properties) {\n  forEach(properties, function(prop) {\n    backup[prop] = isDefined(backup[prop])\n        ? backup[prop]\n        : node.style.getPropertyValue(prop);\n  });\n}\n\nvar $AnimateCssProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var gcsLookup = createLocalCacheLookup();\n  var gcsStaggerLookup = createLocalCacheLookup();\n\n  this.$get = ['$window', '$$jqLite', '$$AnimateRunner', '$timeout',\n               '$$forceReflow', '$sniffer', '$$rAFScheduler', '$$animateQueue',\n       function($window,   $$jqLite,   $$AnimateRunner,   $timeout,\n                $$forceReflow,   $sniffer,   $$rAFScheduler, $$animateQueue) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    var parentCounter = 0;\n    function gcsHashFn(node, extraClasses) {\n      var KEY = '$$ngAnimateParentKey';\n      var parentNode = node.parentNode;\n      var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);\n      return parentID + '-' + node.getAttribute('class') + '-' + extraClasses;\n    }\n\n    function computeCachedCssStyles(node, className, cacheKey, properties) {\n      var timings = gcsLookup.get(cacheKey);\n\n      if (!timings) {\n        timings = computeCssStyles($window, node, properties);\n        if (timings.animationIterationCount === 'infinite') {\n          timings.animationIterationCount = 1;\n        }\n      }\n\n      // we keep putting this in multiple times even though the value and the cacheKey are the same\n      // because we're keeping an internal tally of how many duplicate animations are detected.\n      gcsLookup.put(cacheKey, timings);\n      return timings;\n    }\n\n    function computeCachedCssStaggerStyles(node, className, cacheKey, properties) {\n      var stagger;\n\n      // if we have one or more existing matches of matching elements\n      // containing the same parent + CSS styles (which is how cacheKey works)\n      // then staggering is possible\n      if (gcsLookup.count(cacheKey) > 0) {\n        stagger = gcsStaggerLookup.get(cacheKey);\n\n        if (!stagger) {\n          var staggerClassName = pendClasses(className, '-stagger');\n\n          $$jqLite.addClass(node, staggerClassName);\n\n          stagger = computeCssStyles($window, node, properties);\n\n          // force the conversion of a null value to zero incase not set\n          stagger.animationDuration = Math.max(stagger.animationDuration, 0);\n          stagger.transitionDuration = Math.max(stagger.transitionDuration, 0);\n\n          $$jqLite.removeClass(node, staggerClassName);\n\n          gcsStaggerLookup.put(cacheKey, stagger);\n        }\n      }\n\n      return stagger || {};\n    }\n\n    var rafWaitQueue = [];\n    function waitUntilQuiet(callback) {\n      rafWaitQueue.push(callback);\n      $$rAFScheduler.waitUntilQuiet(function() {\n        gcsLookup.flush();\n        gcsStaggerLookup.flush();\n\n        // DO NOT REMOVE THIS LINE OR REFACTOR OUT THE `pageWidth` variable.\n        // PLEASE EXAMINE THE `$$forceReflow` service to understand why.\n        var pageWidth = $$forceReflow();\n\n        // we use a for loop to ensure that if the queue is changed\n        // during this looping then it will consider new requests\n        for (var i = 0; i < rafWaitQueue.length; i++) {\n          rafWaitQueue[i](pageWidth);\n        }\n        rafWaitQueue.length = 0;\n      });\n    }\n\n    function computeTimings(node, className, cacheKey) {\n      var timings = computeCachedCssStyles(node, className, cacheKey, DETECT_CSS_PROPERTIES);\n      var aD = timings.animationDelay;\n      var tD = timings.transitionDelay;\n      timings.maxDelay = aD && tD\n          ? Math.max(aD, tD)\n          : (aD || tD);\n      timings.maxDuration = Math.max(\n          timings.animationDuration * timings.animationIterationCount,\n          timings.transitionDuration);\n\n      return timings;\n    }\n\n    return function init(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = prepareAnimationOptions(copy(options));\n      }\n\n      var restoreStyles = {};\n      var node = getDomNode(element);\n      if (!node\n          || !node.parentNode\n          || !$$animateQueue.enabled()) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var temporaryStyles = [];\n      var classes = element.attr('class');\n      var styles = packageStyles(options);\n      var animationClosed;\n      var animationPaused;\n      var animationCompleted;\n      var runner;\n      var runnerHost;\n      var maxDelay;\n      var maxDelayTime;\n      var maxDuration;\n      var maxDurationTime;\n      var startTime;\n      var events = [];\n\n      if (options.duration === 0 || (!$sniffer.animations && !$sniffer.transitions)) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var method = options.event && isArray(options.event)\n            ? options.event.join(' ')\n            : options.event;\n\n      var isStructural = method && options.structural;\n      var structuralClassName = '';\n      var addRemoveClassName = '';\n\n      if (isStructural) {\n        structuralClassName = pendClasses(method, EVENT_CLASS_PREFIX, true);\n      } else if (method) {\n        structuralClassName = method;\n      }\n\n      if (options.addClass) {\n        addRemoveClassName += pendClasses(options.addClass, ADD_CLASS_SUFFIX);\n      }\n\n      if (options.removeClass) {\n        if (addRemoveClassName.length) {\n          addRemoveClassName += ' ';\n        }\n        addRemoveClassName += pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX);\n      }\n\n      // there may be a situation where a structural animation is combined together\n      // with CSS classes that need to resolve before the animation is computed.\n      // However this means that there is no explicit CSS code to block the animation\n      // from happening (by setting 0s none in the class name). If this is the case\n      // we need to apply the classes before the first rAF so we know to continue if\n      // there actually is a detected transition or keyframe animation\n      if (options.applyClassesEarly && addRemoveClassName.length) {\n        applyAnimationClasses(element, options);\n      }\n\n      var preparationClasses = [structuralClassName, addRemoveClassName].join(' ').trim();\n      var fullClassName = classes + ' ' + preparationClasses;\n      var activeClasses = pendClasses(preparationClasses, ACTIVE_CLASS_SUFFIX);\n      var hasToStyles = styles.to && Object.keys(styles.to).length > 0;\n      var containsKeyframeAnimation = (options.keyframeStyle || '').length > 0;\n\n      // there is no way we can trigger an animation if no styles and\n      // no classes are being applied which would then trigger a transition,\n      // unless there a is raw keyframe value that is applied to the element.\n      if (!containsKeyframeAnimation\n           && !hasToStyles\n           && !preparationClasses) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var cacheKey, stagger;\n      if (options.stagger > 0) {\n        var staggerVal = parseFloat(options.stagger);\n        stagger = {\n          transitionDelay: staggerVal,\n          animationDelay: staggerVal,\n          transitionDuration: 0,\n          animationDuration: 0\n        };\n      } else {\n        cacheKey = gcsHashFn(node, fullClassName);\n        stagger = computeCachedCssStaggerStyles(node, preparationClasses, cacheKey, DETECT_STAGGER_CSS_PROPERTIES);\n      }\n\n      if (!options.$$skipPreparationClasses) {\n        $$jqLite.addClass(element, preparationClasses);\n      }\n\n      var applyOnlyDuration;\n\n      if (options.transitionStyle) {\n        var transitionStyle = [TRANSITION_PROP, options.transitionStyle];\n        applyInlineStyle(node, transitionStyle);\n        temporaryStyles.push(transitionStyle);\n      }\n\n      if (options.duration >= 0) {\n        applyOnlyDuration = node.style[TRANSITION_PROP].length > 0;\n        var durationStyle = getCssTransitionDurationStyle(options.duration, applyOnlyDuration);\n\n        // we set the duration so that it will be picked up by getComputedStyle later\n        applyInlineStyle(node, durationStyle);\n        temporaryStyles.push(durationStyle);\n      }\n\n      if (options.keyframeStyle) {\n        var keyframeStyle = [ANIMATION_PROP, options.keyframeStyle];\n        applyInlineStyle(node, keyframeStyle);\n        temporaryStyles.push(keyframeStyle);\n      }\n\n      var itemIndex = stagger\n          ? options.staggerIndex >= 0\n              ? options.staggerIndex\n              : gcsLookup.count(cacheKey)\n          : 0;\n\n      var isFirst = itemIndex === 0;\n\n      // this is a pre-emptive way of forcing the setup classes to be added and applied INSTANTLY\n      // without causing any combination of transitions to kick in. By adding a negative delay value\n      // it forces the setup class' transition to end immediately. We later then remove the negative\n      // transition delay to allow for the transition to naturally do it's thing. The beauty here is\n      // that if there is no transition defined then nothing will happen and this will also allow\n      // other transitions to be stacked on top of each other without any chopping them out.\n      if (isFirst && !options.skipBlocking) {\n        blockTransitions(node, SAFE_FAST_FORWARD_DURATION_VALUE);\n      }\n\n      var timings = computeTimings(node, fullClassName, cacheKey);\n      var relativeDelay = timings.maxDelay;\n      maxDelay = Math.max(relativeDelay, 0);\n      maxDuration = timings.maxDuration;\n\n      var flags = {};\n      flags.hasTransitions          = timings.transitionDuration > 0;\n      flags.hasAnimations           = timings.animationDuration > 0;\n      flags.hasTransitionAll        = flags.hasTransitions && timings.transitionProperty === 'all';\n      flags.applyTransitionDuration = hasToStyles && (\n                                        (flags.hasTransitions && !flags.hasTransitionAll)\n                                         || (flags.hasAnimations && !flags.hasTransitions));\n      flags.applyAnimationDuration  = options.duration && flags.hasAnimations;\n      flags.applyTransitionDelay    = truthyTimingValue(options.delay) && (flags.applyTransitionDuration || flags.hasTransitions);\n      flags.applyAnimationDelay     = truthyTimingValue(options.delay) && flags.hasAnimations;\n      flags.recalculateTimingStyles = addRemoveClassName.length > 0;\n\n      if (flags.applyTransitionDuration || flags.applyAnimationDuration) {\n        maxDuration = options.duration ? parseFloat(options.duration) : maxDuration;\n\n        if (flags.applyTransitionDuration) {\n          flags.hasTransitions = true;\n          timings.transitionDuration = maxDuration;\n          applyOnlyDuration = node.style[TRANSITION_PROP + PROPERTY_KEY].length > 0;\n          temporaryStyles.push(getCssTransitionDurationStyle(maxDuration, applyOnlyDuration));\n        }\n\n        if (flags.applyAnimationDuration) {\n          flags.hasAnimations = true;\n          timings.animationDuration = maxDuration;\n          temporaryStyles.push(getCssKeyframeDurationStyle(maxDuration));\n        }\n      }\n\n      if (maxDuration === 0 && !flags.recalculateTimingStyles) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      if (options.delay != null) {\n        var delayStyle;\n        if (typeof options.delay !== 'boolean') {\n          delayStyle = parseFloat(options.delay);\n          // number in options.delay means we have to recalculate the delay for the closing timeout\n          maxDelay = Math.max(delayStyle, 0);\n        }\n\n        if (flags.applyTransitionDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle));\n        }\n\n        if (flags.applyAnimationDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle, true));\n        }\n      }\n\n      // we need to recalculate the delay value since we used a pre-emptive negative\n      // delay value and the delay value is required for the final event checking. This\n      // property will ensure that this will happen after the RAF phase has passed.\n      if (options.duration == null && timings.transitionDuration > 0) {\n        flags.recalculateTimingStyles = flags.recalculateTimingStyles || isFirst;\n      }\n\n      maxDelayTime = maxDelay * ONE_SECOND;\n      maxDurationTime = maxDuration * ONE_SECOND;\n      if (!options.skipBlocking) {\n        flags.blockTransition = timings.transitionDuration > 0;\n        flags.blockKeyframeAnimation = timings.animationDuration > 0 &&\n                                       stagger.animationDelay > 0 &&\n                                       stagger.animationDuration === 0;\n      }\n\n      if (options.from) {\n        if (options.cleanupStyles) {\n          registerRestorableStyles(restoreStyles, node, Object.keys(options.from));\n        }\n        applyAnimationFromStyles(element, options);\n      }\n\n      if (flags.blockTransition || flags.blockKeyframeAnimation) {\n        applyBlocking(maxDuration);\n      } else if (!options.skipBlocking) {\n        blockTransitions(node, false);\n      }\n\n      // TODO(matsko): for 1.5 change this code to have an animator object for better debugging\n      return {\n        $$willAnimate: true,\n        end: endFn,\n        start: function() {\n          if (animationClosed) return;\n\n          runnerHost = {\n            end: endFn,\n            cancel: cancelFn,\n            resume: null, //this will be set during the start() phase\n            pause: null\n          };\n\n          runner = new $$AnimateRunner(runnerHost);\n\n          waitUntilQuiet(start);\n\n          // we don't have access to pause/resume the animation\n          // since it hasn't run yet. AnimateRunner will therefore\n          // set noop functions for resume and pause and they will\n          // later be overridden once the animation is triggered\n          return runner;\n        }\n      };\n\n      function endFn() {\n        close();\n      }\n\n      function cancelFn() {\n        close(true);\n      }\n\n      function close(rejected) {\n        // if the promise has been called already then we shouldn't close\n        // the animation again\n        if (animationClosed || (animationCompleted && animationPaused)) return;\n        animationClosed = true;\n        animationPaused = false;\n\n        if (!options.$$skipPreparationClasses) {\n          $$jqLite.removeClass(element, preparationClasses);\n        }\n        $$jqLite.removeClass(element, activeClasses);\n\n        blockKeyframeAnimations(node, false);\n        blockTransitions(node, false);\n\n        forEach(temporaryStyles, function(entry) {\n          // There is only one way to remove inline style properties entirely from elements.\n          // By using `removeProperty` this works, but we need to convert camel-cased CSS\n          // styles down to hyphenated values.\n          node.style[entry[0]] = '';\n        });\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n\n        if (Object.keys(restoreStyles).length) {\n          forEach(restoreStyles, function(value, prop) {\n            if (value) {\n              node.style.setProperty(prop, value);\n            } else {\n              node.style.removeProperty(prop);\n            }\n          });\n        }\n\n        // the reason why we have this option is to allow a synchronous closing callback\n        // that is fired as SOON as the animation ends (when the CSS is removed) or if\n        // the animation never takes off at all. A good example is a leave animation since\n        // the element must be removed just after the animation is over or else the element\n        // will appear on screen for one animation frame causing an overbearing flicker.\n        if (options.onDone) {\n          options.onDone();\n        }\n\n        if (events && events.length) {\n          // Remove the transitionend / animationend listener(s)\n          element.off(events.join(' '), onAnimationProgress);\n        }\n\n        //Cancel the fallback closing timeout and remove the timer data\n        var animationTimerData = element.data(ANIMATE_TIMER_KEY);\n        if (animationTimerData) {\n          $timeout.cancel(animationTimerData[0].timer);\n          element.removeData(ANIMATE_TIMER_KEY);\n        }\n\n        // if the preparation function fails then the promise is not setup\n        if (runner) {\n          runner.complete(!rejected);\n        }\n      }\n\n      function applyBlocking(duration) {\n        if (flags.blockTransition) {\n          blockTransitions(node, duration);\n        }\n\n        if (flags.blockKeyframeAnimation) {\n          blockKeyframeAnimations(node, !!duration);\n        }\n      }\n\n      function closeAndReturnNoopAnimator() {\n        runner = new $$AnimateRunner({\n          end: endFn,\n          cancel: cancelFn\n        });\n\n        // should flush the cache animation\n        waitUntilQuiet(noop);\n        close();\n\n        return {\n          $$willAnimate: false,\n          start: function() {\n            return runner;\n          },\n          end: endFn\n        };\n      }\n\n      function onAnimationProgress(event) {\n        event.stopPropagation();\n        var ev = event.originalEvent || event;\n\n        // we now always use `Date.now()` due to the recent changes with\n        // event.timeStamp in Firefox, Webkit and Chrome (see #13494 for more info)\n        var timeStamp = ev.$manualTimeStamp || Date.now();\n\n        /* Firefox (or possibly just Gecko) likes to not round values up\n         * when a ms measurement is used for the animation */\n        var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));\n\n        /* $manualTimeStamp is a mocked timeStamp value which is set\n         * within browserTrigger(). This is only here so that tests can\n         * mock animations properly. Real events fallback to event.timeStamp,\n         * or, if they don't, then a timeStamp is automatically created for them.\n         * We're checking to see if the timeStamp surpasses the expected delay,\n         * but we're using elapsedTime instead of the timeStamp on the 2nd\n         * pre-condition since animationPauseds sometimes close off early */\n        if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n          // we set this flag to ensure that if the transition is paused then, when resumed,\n          // the animation will automatically close itself since transitions cannot be paused.\n          animationCompleted = true;\n          close();\n        }\n      }\n\n      function start() {\n        if (animationClosed) return;\n        if (!node.parentNode) {\n          close();\n          return;\n        }\n\n        // even though we only pause keyframe animations here the pause flag\n        // will still happen when transitions are used. Only the transition will\n        // not be paused since that is not possible. If the animation ends when\n        // paused then it will not complete until unpaused or cancelled.\n        var playPause = function(playAnimation) {\n          if (!animationCompleted) {\n            animationPaused = !playAnimation;\n            if (timings.animationDuration) {\n              var value = blockKeyframeAnimations(node, animationPaused);\n              if (animationPaused) {\n                temporaryStyles.push(value);\n              } else {\n                removeFromArray(temporaryStyles, value);\n              }\n            }\n          } else if (animationPaused && playAnimation) {\n            animationPaused = false;\n            close();\n          }\n        };\n\n        // checking the stagger duration prevents an accidentally cascade of the CSS delay style\n        // being inherited from the parent. If the transition duration is zero then we can safely\n        // rely that the delay value is an intentional stagger delay style.\n        var maxStagger = itemIndex > 0\n                         && ((timings.transitionDuration && stagger.transitionDuration === 0) ||\n                            (timings.animationDuration && stagger.animationDuration === 0))\n                         && Math.max(stagger.animationDelay, stagger.transitionDelay);\n        if (maxStagger) {\n          $timeout(triggerAnimationStart,\n                   Math.floor(maxStagger * itemIndex * ONE_SECOND),\n                   false);\n        } else {\n          triggerAnimationStart();\n        }\n\n        // this will decorate the existing promise runner with pause/resume methods\n        runnerHost.resume = function() {\n          playPause(true);\n        };\n\n        runnerHost.pause = function() {\n          playPause(false);\n        };\n\n        function triggerAnimationStart() {\n          // just incase a stagger animation kicks in when the animation\n          // itself was cancelled entirely\n          if (animationClosed) return;\n\n          applyBlocking(false);\n\n          forEach(temporaryStyles, function(entry) {\n            var key = entry[0];\n            var value = entry[1];\n            node.style[key] = value;\n          });\n\n          applyAnimationClasses(element, options);\n          $$jqLite.addClass(element, activeClasses);\n\n          if (flags.recalculateTimingStyles) {\n            fullClassName = node.className + ' ' + preparationClasses;\n            cacheKey = gcsHashFn(node, fullClassName);\n\n            timings = computeTimings(node, fullClassName, cacheKey);\n            relativeDelay = timings.maxDelay;\n            maxDelay = Math.max(relativeDelay, 0);\n            maxDuration = timings.maxDuration;\n\n            if (maxDuration === 0) {\n              close();\n              return;\n            }\n\n            flags.hasTransitions = timings.transitionDuration > 0;\n            flags.hasAnimations = timings.animationDuration > 0;\n          }\n\n          if (flags.applyAnimationDelay) {\n            relativeDelay = typeof options.delay !== 'boolean' && truthyTimingValue(options.delay)\n                  ? parseFloat(options.delay)\n                  : relativeDelay;\n\n            maxDelay = Math.max(relativeDelay, 0);\n            timings.animationDelay = relativeDelay;\n            delayStyle = getCssDelayStyle(relativeDelay, true);\n            temporaryStyles.push(delayStyle);\n            node.style[delayStyle[0]] = delayStyle[1];\n          }\n\n          maxDelayTime = maxDelay * ONE_SECOND;\n          maxDurationTime = maxDuration * ONE_SECOND;\n\n          if (options.easing) {\n            var easeProp, easeVal = options.easing;\n            if (flags.hasTransitions) {\n              easeProp = TRANSITION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n            if (flags.hasAnimations) {\n              easeProp = ANIMATION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n          }\n\n          if (timings.transitionDuration) {\n            events.push(TRANSITIONEND_EVENT);\n          }\n\n          if (timings.animationDuration) {\n            events.push(ANIMATIONEND_EVENT);\n          }\n\n          startTime = Date.now();\n          var timerTime = maxDelayTime + CLOSING_TIME_BUFFER * maxDurationTime;\n          var endTime = startTime + timerTime;\n\n          var animationsData = element.data(ANIMATE_TIMER_KEY) || [];\n          var setupFallbackTimer = true;\n          if (animationsData.length) {\n            var currentTimerData = animationsData[0];\n            setupFallbackTimer = endTime > currentTimerData.expectedEndTime;\n            if (setupFallbackTimer) {\n              $timeout.cancel(currentTimerData.timer);\n            } else {\n              animationsData.push(close);\n            }\n          }\n\n          if (setupFallbackTimer) {\n            var timer = $timeout(onAnimationExpired, timerTime, false);\n            animationsData[0] = {\n              timer: timer,\n              expectedEndTime: endTime\n            };\n            animationsData.push(close);\n            element.data(ANIMATE_TIMER_KEY, animationsData);\n          }\n\n          if (events.length) {\n            element.on(events.join(' '), onAnimationProgress);\n          }\n\n          if (options.to) {\n            if (options.cleanupStyles) {\n              registerRestorableStyles(restoreStyles, node, Object.keys(options.to));\n            }\n            applyAnimationToStyles(element, options);\n          }\n        }\n\n        function onAnimationExpired() {\n          var animationsData = element.data(ANIMATE_TIMER_KEY);\n\n          // this will be false in the event that the element was\n          // removed from the DOM (via a leave animation or something\n          // similar)\n          if (animationsData) {\n            for (var i = 1; i < animationsData.length; i++) {\n              animationsData[i]();\n            }\n            element.removeData(ANIMATE_TIMER_KEY);\n          }\n        }\n      }\n    };\n  }];\n}];\n\nvar $$AnimateCssDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateCssDriver');\n\n  var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';\n  var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';\n\n  var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';\n  var NG_IN_ANCHOR_CLASS_NAME = 'ng-anchor-in';\n\n  function isDocumentFragment(node) {\n    return node.parentNode && node.parentNode.nodeType === 11;\n  }\n\n  this.$get = ['$animateCss', '$rootScope', '$$AnimateRunner', '$rootElement', '$sniffer', '$$jqLite', '$document',\n       function($animateCss,   $rootScope,   $$AnimateRunner,   $rootElement,   $sniffer,   $$jqLite,   $document) {\n\n    // only browsers that support these properties can render animations\n    if (!$sniffer.animations && !$sniffer.transitions) return noop;\n\n    var bodyNode = $document[0].body;\n    var rootNode = getDomNode($rootElement);\n\n    var rootBodyElement = jqLite(\n      // this is to avoid using something that exists outside of the body\n      // we also special case the doc fragment case because our unit test code\n      // appends the $rootElement to the body after the app has been bootstrapped\n      isDocumentFragment(rootNode) || bodyNode.contains(rootNode) ? rootNode : bodyNode\n    );\n\n    return function initDriverFn(animationDetails) {\n      return animationDetails.from && animationDetails.to\n          ? prepareFromToAnchorAnimation(animationDetails.from,\n                                         animationDetails.to,\n                                         animationDetails.classes,\n                                         animationDetails.anchors)\n          : prepareRegularAnimation(animationDetails);\n    };\n\n    function filterCssClasses(classes) {\n      //remove all the `ng-` stuff\n      return classes.replace(/\\bng-\\S+\\b/g, '');\n    }\n\n    function getUniqueValues(a, b) {\n      if (isString(a)) a = a.split(' ');\n      if (isString(b)) b = b.split(' ');\n      return a.filter(function(val) {\n        return b.indexOf(val) === -1;\n      }).join(' ');\n    }\n\n    function prepareAnchoredAnimation(classes, outAnchor, inAnchor) {\n      var clone = jqLite(getDomNode(outAnchor).cloneNode(true));\n      var startingClasses = filterCssClasses(getClassVal(clone));\n\n      outAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      inAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n\n      clone.addClass(NG_ANIMATE_ANCHOR_CLASS_NAME);\n\n      rootBodyElement.append(clone);\n\n      var animatorIn, animatorOut = prepareOutAnimation();\n\n      // the user may not end up using the `out` animation and\n      // only making use of the `in` animation or vice-versa.\n      // In either case we should allow this and not assume the\n      // animation is over unless both animations are not used.\n      if (!animatorOut) {\n        animatorIn = prepareInAnimation();\n        if (!animatorIn) {\n          return end();\n        }\n      }\n\n      var startingAnimator = animatorOut || animatorIn;\n\n      return {\n        start: function() {\n          var runner;\n\n          var currentAnimation = startingAnimator.start();\n          currentAnimation.done(function() {\n            currentAnimation = null;\n            if (!animatorIn) {\n              animatorIn = prepareInAnimation();\n              if (animatorIn) {\n                currentAnimation = animatorIn.start();\n                currentAnimation.done(function() {\n                  currentAnimation = null;\n                  end();\n                  runner.complete();\n                });\n                return currentAnimation;\n              }\n            }\n            // in the event that there is no `in` animation\n            end();\n            runner.complete();\n          });\n\n          runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn\n          });\n\n          return runner;\n\n          function endFn() {\n            if (currentAnimation) {\n              currentAnimation.end();\n            }\n          }\n        }\n      };\n\n      function calculateAnchorStyles(anchor) {\n        var styles = {};\n\n        var coords = getDomNode(anchor).getBoundingClientRect();\n\n        // we iterate directly since safari messes up and doesn't return\n        // all the keys for the coords object when iterated\n        forEach(['width','height','top','left'], function(key) {\n          var value = coords[key];\n          switch (key) {\n            case 'top':\n              value += bodyNode.scrollTop;\n              break;\n            case 'left':\n              value += bodyNode.scrollLeft;\n              break;\n          }\n          styles[key] = Math.floor(value) + 'px';\n        });\n        return styles;\n      }\n\n      function prepareOutAnimation() {\n        var animator = $animateCss(clone, {\n          addClass: NG_OUT_ANCHOR_CLASS_NAME,\n          delay: true,\n          from: calculateAnchorStyles(outAnchor)\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function getClassVal(element) {\n        return element.attr('class') || '';\n      }\n\n      function prepareInAnimation() {\n        var endingClasses = filterCssClasses(getClassVal(inAnchor));\n        var toAdd = getUniqueValues(endingClasses, startingClasses);\n        var toRemove = getUniqueValues(startingClasses, endingClasses);\n\n        var animator = $animateCss(clone, {\n          to: calculateAnchorStyles(inAnchor),\n          addClass: NG_IN_ANCHOR_CLASS_NAME + ' ' + toAdd,\n          removeClass: NG_OUT_ANCHOR_CLASS_NAME + ' ' + toRemove,\n          delay: true\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function end() {\n        clone.remove();\n        outAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n        inAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      }\n    }\n\n    function prepareFromToAnchorAnimation(from, to, classes, anchors) {\n      var fromAnimation = prepareRegularAnimation(from, noop);\n      var toAnimation = prepareRegularAnimation(to, noop);\n\n      var anchorAnimations = [];\n      forEach(anchors, function(anchor) {\n        var outElement = anchor['out'];\n        var inElement = anchor['in'];\n        var animator = prepareAnchoredAnimation(classes, outElement, inElement);\n        if (animator) {\n          anchorAnimations.push(animator);\n        }\n      });\n\n      // no point in doing anything when there are no elements to animate\n      if (!fromAnimation && !toAnimation && anchorAnimations.length === 0) return;\n\n      return {\n        start: function() {\n          var animationRunners = [];\n\n          if (fromAnimation) {\n            animationRunners.push(fromAnimation.start());\n          }\n\n          if (toAnimation) {\n            animationRunners.push(toAnimation.start());\n          }\n\n          forEach(anchorAnimations, function(animation) {\n            animationRunners.push(animation.start());\n          });\n\n          var runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn // CSS-driven animations cannot be cancelled, only ended\n          });\n\n          $$AnimateRunner.all(animationRunners, function(status) {\n            runner.complete(status);\n          });\n\n          return runner;\n\n          function endFn() {\n            forEach(animationRunners, function(runner) {\n              runner.end();\n            });\n          }\n        }\n      };\n    }\n\n    function prepareRegularAnimation(animationDetails) {\n      var element = animationDetails.element;\n      var options = animationDetails.options || {};\n\n      if (animationDetails.structural) {\n        options.event = animationDetails.event;\n        options.structural = true;\n        options.applyClassesEarly = true;\n\n        // we special case the leave animation since we want to ensure that\n        // the element is removed as soon as the animation is over. Otherwise\n        // a flicker might appear or the element may not be removed at all\n        if (animationDetails.event === 'leave') {\n          options.onDone = options.domOperation;\n        }\n      }\n\n      // We assign the preparationClasses as the actual animation event since\n      // the internals of $animateCss will just suffix the event token values\n      // with `-active` to trigger the animation.\n      if (options.preparationClasses) {\n        options.event = concatWithSpace(options.event, options.preparationClasses);\n      }\n\n      var animator = $animateCss(element, options);\n\n      // the driver lookup code inside of $$animation attempts to spawn a\n      // driver one by one until a driver returns a.$$willAnimate animator object.\n      // $animateCss will always return an object, however, it will pass in\n      // a flag as a hint as to whether an animation was detected or not\n      return animator.$$willAnimate ? animator : null;\n    }\n  }];\n}];\n\n// TODO(matsko): use caching here to speed things up for detection\n// TODO(matsko): add documentation\n//  by the time...\n\nvar $$AnimateJsProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  this.$get = ['$injector', '$$AnimateRunner', '$$jqLite',\n       function($injector,   $$AnimateRunner,   $$jqLite) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n         // $animateJs(element, 'enter');\n    return function(element, event, classes, options) {\n      var animationClosed = false;\n\n      // the `classes` argument is optional and if it is not used\n      // then the classes will be resolved from the element's className\n      // property as well as options.addClass/options.removeClass.\n      if (arguments.length === 3 && isObject(classes)) {\n        options = classes;\n        classes = null;\n      }\n\n      options = prepareAnimationOptions(options);\n      if (!classes) {\n        classes = element.attr('class') || '';\n        if (options.addClass) {\n          classes += ' ' + options.addClass;\n        }\n        if (options.removeClass) {\n          classes += ' ' + options.removeClass;\n        }\n      }\n\n      var classesToAdd = options.addClass;\n      var classesToRemove = options.removeClass;\n\n      // the lookupAnimations function returns a series of animation objects that are\n      // matched up with one or more of the CSS classes. These animation objects are\n      // defined via the module.animation factory function. If nothing is detected then\n      // we don't return anything which then makes $animation query the next driver.\n      var animations = lookupAnimations(classes);\n      var before, after;\n      if (animations.length) {\n        var afterFn, beforeFn;\n        if (event === 'leave') {\n          beforeFn = 'leave';\n          afterFn = 'afterLeave'; // TODO(matsko): get rid of this\n        } else {\n          beforeFn = 'before' + event.charAt(0).toUpperCase() + event.substr(1);\n          afterFn = event;\n        }\n\n        if (event !== 'enter' && event !== 'move') {\n          before = packageAnimations(element, event, options, animations, beforeFn);\n        }\n        after  = packageAnimations(element, event, options, animations, afterFn);\n      }\n\n      // no matching animations\n      if (!before && !after) return;\n\n      function applyOptions() {\n        options.domOperation();\n        applyAnimationClasses(element, options);\n      }\n\n      function close() {\n        animationClosed = true;\n        applyOptions();\n        applyAnimationStyles(element, options);\n      }\n\n      var runner;\n\n      return {\n        $$willAnimate: true,\n        end: function() {\n          if (runner) {\n            runner.end();\n          } else {\n            close();\n            runner = new $$AnimateRunner();\n            runner.complete(true);\n          }\n          return runner;\n        },\n        start: function() {\n          if (runner) {\n            return runner;\n          }\n\n          runner = new $$AnimateRunner();\n          var closeActiveAnimations;\n          var chain = [];\n\n          if (before) {\n            chain.push(function(fn) {\n              closeActiveAnimations = before(fn);\n            });\n          }\n\n          if (chain.length) {\n            chain.push(function(fn) {\n              applyOptions();\n              fn(true);\n            });\n          } else {\n            applyOptions();\n          }\n\n          if (after) {\n            chain.push(function(fn) {\n              closeActiveAnimations = after(fn);\n            });\n          }\n\n          runner.setHost({\n            end: function() {\n              endAnimations();\n            },\n            cancel: function() {\n              endAnimations(true);\n            }\n          });\n\n          $$AnimateRunner.chain(chain, onComplete);\n          return runner;\n\n          function onComplete(success) {\n            close(success);\n            runner.complete(success);\n          }\n\n          function endAnimations(cancelled) {\n            if (!animationClosed) {\n              (closeActiveAnimations || noop)(cancelled);\n              onComplete(cancelled);\n            }\n          }\n        }\n      };\n\n      function executeAnimationFn(fn, element, event, options, onDone) {\n        var args;\n        switch (event) {\n          case 'animate':\n            args = [element, options.from, options.to, onDone];\n            break;\n\n          case 'setClass':\n            args = [element, classesToAdd, classesToRemove, onDone];\n            break;\n\n          case 'addClass':\n            args = [element, classesToAdd, onDone];\n            break;\n\n          case 'removeClass':\n            args = [element, classesToRemove, onDone];\n            break;\n\n          default:\n            args = [element, onDone];\n            break;\n        }\n\n        args.push(options);\n\n        var value = fn.apply(fn, args);\n        if (value) {\n          if (isFunction(value.start)) {\n            value = value.start();\n          }\n\n          if (value instanceof $$AnimateRunner) {\n            value.done(onDone);\n          } else if (isFunction(value)) {\n            // optional onEnd / onCancel callback\n            return value;\n          }\n        }\n\n        return noop;\n      }\n\n      function groupEventedAnimations(element, event, options, animations, fnName) {\n        var operations = [];\n        forEach(animations, function(ani) {\n          var animation = ani[fnName];\n          if (!animation) return;\n\n          // note that all of these animations will run in parallel\n          operations.push(function() {\n            var runner;\n            var endProgressCb;\n\n            var resolved = false;\n            var onAnimationComplete = function(rejected) {\n              if (!resolved) {\n                resolved = true;\n                (endProgressCb || noop)(rejected);\n                runner.complete(!rejected);\n              }\n            };\n\n            runner = new $$AnimateRunner({\n              end: function() {\n                onAnimationComplete();\n              },\n              cancel: function() {\n                onAnimationComplete(true);\n              }\n            });\n\n            endProgressCb = executeAnimationFn(animation, element, event, options, function(result) {\n              var cancelled = result === false;\n              onAnimationComplete(cancelled);\n            });\n\n            return runner;\n          });\n        });\n\n        return operations;\n      }\n\n      function packageAnimations(element, event, options, animations, fnName) {\n        var operations = groupEventedAnimations(element, event, options, animations, fnName);\n        if (operations.length === 0) {\n          var a, b;\n          if (fnName === 'beforeSetClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'beforeRemoveClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'beforeAddClass');\n          } else if (fnName === 'setClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'removeClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'addClass');\n          }\n\n          if (a) {\n            operations = operations.concat(a);\n          }\n          if (b) {\n            operations = operations.concat(b);\n          }\n        }\n\n        if (operations.length === 0) return;\n\n        // TODO(matsko): add documentation\n        return function startAnimation(callback) {\n          var runners = [];\n          if (operations.length) {\n            forEach(operations, function(animateFn) {\n              runners.push(animateFn());\n            });\n          }\n\n          if (runners.length) {\n            $$AnimateRunner.all(runners, callback);\n          }  else {\n            callback();\n          }\n\n          return function endFn(reject) {\n            forEach(runners, function(runner) {\n              if (reject) {\n                runner.cancel();\n              } else {\n                runner.end();\n              }\n            });\n          };\n        };\n      }\n    };\n\n    function lookupAnimations(classes) {\n      classes = isArray(classes) ? classes : classes.split(' ');\n      var matches = [], flagMap = {};\n      for (var i = 0; i < classes.length; i++) {\n        var klass = classes[i],\n            animationFactory = $animateProvider.$$registeredAnimations[klass];\n        if (animationFactory && !flagMap[klass]) {\n          matches.push($injector.get(animationFactory));\n          flagMap[klass] = true;\n        }\n      }\n      return matches;\n    }\n  }];\n}];\n\nvar $$AnimateJsDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateJsDriver');\n  this.$get = ['$$animateJs', '$$AnimateRunner', function($$animateJs, $$AnimateRunner) {\n    return function initDriverFn(animationDetails) {\n      if (animationDetails.from && animationDetails.to) {\n        var fromAnimation = prepareAnimation(animationDetails.from);\n        var toAnimation = prepareAnimation(animationDetails.to);\n        if (!fromAnimation && !toAnimation) return;\n\n        return {\n          start: function() {\n            var animationRunners = [];\n\n            if (fromAnimation) {\n              animationRunners.push(fromAnimation.start());\n            }\n\n            if (toAnimation) {\n              animationRunners.push(toAnimation.start());\n            }\n\n            $$AnimateRunner.all(animationRunners, done);\n\n            var runner = new $$AnimateRunner({\n              end: endFnFactory(),\n              cancel: endFnFactory()\n            });\n\n            return runner;\n\n            function endFnFactory() {\n              return function() {\n                forEach(animationRunners, function(runner) {\n                  // at this point we cannot cancel animations for groups just yet. 1.5+\n                  runner.end();\n                });\n              };\n            }\n\n            function done(status) {\n              runner.complete(status);\n            }\n          }\n        };\n      } else {\n        return prepareAnimation(animationDetails);\n      }\n    };\n\n    function prepareAnimation(animationDetails) {\n      // TODO(matsko): make sure to check for grouped animations and delegate down to normal animations\n      var element = animationDetails.element;\n      var event = animationDetails.event;\n      var options = animationDetails.options;\n      var classes = animationDetails.classes;\n      return $$animateJs(element, event, classes, options);\n    }\n  }];\n}];\n\nvar NG_ANIMATE_ATTR_NAME = 'data-ng-animate';\nvar NG_ANIMATE_PIN_DATA = '$ngAnimatePin';\nvar $$AnimateQueueProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var PRE_DIGEST_STATE = 1;\n  var RUNNING_STATE = 2;\n  var ONE_SPACE = ' ';\n\n  var rules = this.rules = {\n    skip: [],\n    cancel: [],\n    join: []\n  };\n\n  function makeTruthyCssClassMap(classString) {\n    if (!classString) {\n      return null;\n    }\n\n    var keys = classString.split(ONE_SPACE);\n    var map = Object.create(null);\n\n    forEach(keys, function(key) {\n      map[key] = true;\n    });\n    return map;\n  }\n\n  function hasMatchingClasses(newClassString, currentClassString) {\n    if (newClassString && currentClassString) {\n      var currentClassMap = makeTruthyCssClassMap(currentClassString);\n      return newClassString.split(ONE_SPACE).some(function(className) {\n        return currentClassMap[className];\n      });\n    }\n  }\n\n  function isAllowed(ruleType, element, currentAnimation, previousAnimation) {\n    return rules[ruleType].some(function(fn) {\n      return fn(element, currentAnimation, previousAnimation);\n    });\n  }\n\n  function hasAnimationClasses(animation, and) {\n    var a = (animation.addClass || '').length > 0;\n    var b = (animation.removeClass || '').length > 0;\n    return and ? a && b : a || b;\n  }\n\n  rules.join.push(function(element, newAnimation, currentAnimation) {\n    // if the new animation is class-based then we can just tack that on\n    return !newAnimation.structural && hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(element, newAnimation, currentAnimation) {\n    // there is no need to animate anything if no classes are being added and\n    // there is no structural animation that will be triggered\n    return !newAnimation.structural && !hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(element, newAnimation, currentAnimation) {\n    // why should we trigger a new structural animation if the element will\n    // be removed from the DOM anyway?\n    return currentAnimation.event === 'leave' && newAnimation.structural;\n  });\n\n  rules.skip.push(function(element, newAnimation, currentAnimation) {\n    // if there is an ongoing current animation then don't even bother running the class-based animation\n    return currentAnimation.structural && currentAnimation.state === RUNNING_STATE && !newAnimation.structural;\n  });\n\n  rules.cancel.push(function(element, newAnimation, currentAnimation) {\n    // there can never be two structural animations running at the same time\n    return currentAnimation.structural && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(element, newAnimation, currentAnimation) {\n    // if the previous animation is already running, but the new animation will\n    // be triggered, but the new animation is structural\n    return currentAnimation.state === RUNNING_STATE && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(element, newAnimation, currentAnimation) {\n    // cancel the animation if classes added / removed in both animation cancel each other out,\n    // but only if the current animation isn't structural\n\n    if (currentAnimation.structural) return false;\n\n    var nA = newAnimation.addClass;\n    var nR = newAnimation.removeClass;\n    var cA = currentAnimation.addClass;\n    var cR = currentAnimation.removeClass;\n\n    // early detection to save the global CPU shortage :)\n    if ((isUndefined(nA) && isUndefined(nR)) || (isUndefined(cA) && isUndefined(cR))) {\n      return false;\n    }\n\n    return hasMatchingClasses(nA, cR) || hasMatchingClasses(nR, cA);\n  });\n\n  this.$get = ['$$rAF', '$rootScope', '$rootElement', '$document', '$$HashMap',\n               '$$animation', '$$AnimateRunner', '$templateRequest', '$$jqLite', '$$forceReflow',\n       function($$rAF,   $rootScope,   $rootElement,   $document,   $$HashMap,\n                $$animation,   $$AnimateRunner,   $templateRequest,   $$jqLite,   $$forceReflow) {\n\n    var activeAnimationsLookup = new $$HashMap();\n    var disabledElementsLookup = new $$HashMap();\n    var animationsEnabled = null;\n\n    function postDigestTaskFactory() {\n      var postDigestCalled = false;\n      return function(fn) {\n        // we only issue a call to postDigest before\n        // it has first passed. This prevents any callbacks\n        // from not firing once the animation has completed\n        // since it will be out of the digest cycle.\n        if (postDigestCalled) {\n          fn();\n        } else {\n          $rootScope.$$postDigest(function() {\n            postDigestCalled = true;\n            fn();\n          });\n        }\n      };\n    }\n\n    // Wait until all directive and route-related templates are downloaded and\n    // compiled. The $templateRequest.totalPendingRequests variable keeps track of\n    // all of the remote templates being currently downloaded. If there are no\n    // templates currently downloading then the watcher will still fire anyway.\n    var deregisterWatch = $rootScope.$watch(\n      function() { return $templateRequest.totalPendingRequests === 0; },\n      function(isEmpty) {\n        if (!isEmpty) return;\n        deregisterWatch();\n\n        // Now that all templates have been downloaded, $animate will wait until\n        // the post digest queue is empty before enabling animations. By having two\n        // calls to $postDigest calls we can ensure that the flag is enabled at the\n        // very end of the post digest queue. Since all of the animations in $animate\n        // use $postDigest, it's important that the code below executes at the end.\n        // This basically means that the page is fully downloaded and compiled before\n        // any animations are triggered.\n        $rootScope.$$postDigest(function() {\n          $rootScope.$$postDigest(function() {\n            // we check for null directly in the event that the application already called\n            // .enabled() with whatever arguments that it provided it with\n            if (animationsEnabled === null) {\n              animationsEnabled = true;\n            }\n          });\n        });\n      }\n    );\n\n    var callbackRegistry = Object.create(null);\n\n    // remember that the classNameFilter is set during the provider/config\n    // stage therefore we can optimize here and setup a helper function\n    var classNameFilter = $animateProvider.classNameFilter();\n    var isAnimatableClassName = !classNameFilter\n              ? function() { return true; }\n              : function(className) {\n                return classNameFilter.test(className);\n              };\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function normalizeAnimationDetails(element, animation) {\n      return mergeAnimationDetails(element, animation, {});\n    }\n\n    // IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\n    var contains = window.Node.prototype.contains || /** @this */ function(arg) {\n      // eslint-disable-next-line no-bitwise\n      return this === arg || !!(this.compareDocumentPosition(arg) & 16);\n    };\n\n    function findCallbacks(parent, element, event) {\n      var targetNode = getDomNode(element);\n      var targetParentNode = getDomNode(parent);\n\n      var matches = [];\n      var entries = callbackRegistry[event];\n      if (entries) {\n        forEach(entries, function(entry) {\n          if (contains.call(entry.node, targetNode)) {\n            matches.push(entry.callback);\n          } else if (event === 'leave' && contains.call(entry.node, targetParentNode)) {\n            matches.push(entry.callback);\n          }\n        });\n      }\n\n      return matches;\n    }\n\n    function filterFromRegistry(list, matchContainer, matchCallback) {\n      var containerNode = extractElementNode(matchContainer);\n      return list.filter(function(entry) {\n        var isMatch = entry.node === containerNode &&\n                        (!matchCallback || entry.callback === matchCallback);\n        return !isMatch;\n      });\n    }\n\n    function cleanupEventListeners(phase, element) {\n      if (phase === 'close' && !element[0].parentNode) {\n        // If the element is not attached to a parentNode, it has been removed by\n        // the domOperation, and we can safely remove the event callbacks\n        $animate.off(element);\n      }\n    }\n\n    var $animate = {\n      on: function(event, container, callback) {\n        var node = extractElementNode(container);\n        callbackRegistry[event] = callbackRegistry[event] || [];\n        callbackRegistry[event].push({\n          node: node,\n          callback: callback\n        });\n\n        // Remove the callback when the element is removed from the DOM\n        jqLite(container).on('$destroy', function() {\n          var animationDetails = activeAnimationsLookup.get(node);\n\n          if (!animationDetails) {\n            // If there's an animation ongoing, the callback calling code will remove\n            // the event listeners. If we'd remove here, the callbacks would be removed\n            // before the animation ends\n            $animate.off(event, container, callback);\n          }\n        });\n      },\n\n      off: function(event, container, callback) {\n        if (arguments.length === 1 && !isString(arguments[0])) {\n          container = arguments[0];\n          for (var eventType in callbackRegistry) {\n            callbackRegistry[eventType] = filterFromRegistry(callbackRegistry[eventType], container);\n          }\n\n          return;\n        }\n\n        var entries = callbackRegistry[event];\n        if (!entries) return;\n\n        callbackRegistry[event] = arguments.length === 1\n            ? null\n            : filterFromRegistry(entries, container, callback);\n      },\n\n      pin: function(element, parentElement) {\n        assertArg(isElement(element), 'element', 'not an element');\n        assertArg(isElement(parentElement), 'parentElement', 'not an element');\n        element.data(NG_ANIMATE_PIN_DATA, parentElement);\n      },\n\n      push: function(element, event, options, domOperation) {\n        options = options || {};\n        options.domOperation = domOperation;\n        return queueAnimation(element, event, options);\n      },\n\n      // this method has four signatures:\n      //  () - global getter\n      //  (bool) - global setter\n      //  (element) - element getter\n      //  (element, bool) - element setter<F37>\n      enabled: function(element, bool) {\n        var argCount = arguments.length;\n\n        if (argCount === 0) {\n          // () - Global getter\n          bool = !!animationsEnabled;\n        } else {\n          var hasElement = isElement(element);\n\n          if (!hasElement) {\n            // (bool) - Global setter\n            bool = animationsEnabled = !!element;\n          } else {\n            var node = getDomNode(element);\n\n            if (argCount === 1) {\n              // (element) - Element getter\n              bool = !disabledElementsLookup.get(node);\n            } else {\n              // (element, bool) - Element setter\n              disabledElementsLookup.put(node, !bool);\n            }\n          }\n        }\n\n        return bool;\n      }\n    };\n\n    return $animate;\n\n    function queueAnimation(element, event, initialOptions) {\n      // we always make a copy of the options since\n      // there should never be any side effects on\n      // the input data when running `$animateCss`.\n      var options = copy(initialOptions);\n\n      var node, parent;\n      element = stripCommentsFromElement(element);\n      if (element) {\n        node = getDomNode(element);\n        parent = element.parent();\n      }\n\n      options = prepareAnimationOptions(options);\n\n      // we create a fake runner with a working promise.\n      // These methods will become available after the digest has passed\n      var runner = new $$AnimateRunner();\n\n      // this is used to trigger callbacks in postDigest mode\n      var runInNextPostDigestOrNow = postDigestTaskFactory();\n\n      if (isArray(options.addClass)) {\n        options.addClass = options.addClass.join(' ');\n      }\n\n      if (options.addClass && !isString(options.addClass)) {\n        options.addClass = null;\n      }\n\n      if (isArray(options.removeClass)) {\n        options.removeClass = options.removeClass.join(' ');\n      }\n\n      if (options.removeClass && !isString(options.removeClass)) {\n        options.removeClass = null;\n      }\n\n      if (options.from && !isObject(options.from)) {\n        options.from = null;\n      }\n\n      if (options.to && !isObject(options.to)) {\n        options.to = null;\n      }\n\n      // there are situations where a directive issues an animation for\n      // a jqLite wrapper that contains only comment nodes... If this\n      // happens then there is no way we can perform an animation\n      if (!node) {\n        close();\n        return runner;\n      }\n\n      var className = [node.className, options.addClass, options.removeClass].join(' ');\n      if (!isAnimatableClassName(className)) {\n        close();\n        return runner;\n      }\n\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      var documentHidden = $document[0].hidden;\n\n      // this is a hard disable of all animations for the application or on\n      // the element itself, therefore  there is no need to continue further\n      // past this point if not enabled\n      // Animations are also disabled if the document is currently hidden (page is not visible\n      // to the user), because browsers slow down or do not flush calls to requestAnimationFrame\n      var skipAnimations = !animationsEnabled || documentHidden || disabledElementsLookup.get(node);\n      var existingAnimation = (!skipAnimations && activeAnimationsLookup.get(node)) || {};\n      var hasExistingAnimation = !!existingAnimation.state;\n\n      // there is no point in traversing the same collection of parent ancestors if a followup\n      // animation will be run on the same element that already did all that checking work\n      if (!skipAnimations && (!hasExistingAnimation || existingAnimation.state !== PRE_DIGEST_STATE)) {\n        skipAnimations = !areAnimationsAllowed(element, parent, event);\n      }\n\n      if (skipAnimations) {\n        // Callbacks should fire even if the document is hidden (regression fix for issue #14120)\n        if (documentHidden) notifyProgress(runner, event, 'start');\n        close();\n        if (documentHidden) notifyProgress(runner, event, 'close');\n        return runner;\n      }\n\n      if (isStructural) {\n        closeChildAnimations(element);\n      }\n\n      var newAnimation = {\n        structural: isStructural,\n        element: element,\n        event: event,\n        addClass: options.addClass,\n        removeClass: options.removeClass,\n        close: close,\n        options: options,\n        runner: runner\n      };\n\n      if (hasExistingAnimation) {\n        var skipAnimationFlag = isAllowed('skip', element, newAnimation, existingAnimation);\n        if (skipAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            close();\n            return runner;\n          } else {\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n            return existingAnimation.runner;\n          }\n        }\n        var cancelAnimationFlag = isAllowed('cancel', element, newAnimation, existingAnimation);\n        if (cancelAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            // this will end the animation right away and it is safe\n            // to do so since the animation is already running and the\n            // runner callback code will run in async\n            existingAnimation.runner.end();\n          } else if (existingAnimation.structural) {\n            // this means that the animation is queued into a digest, but\n            // hasn't started yet. Therefore it is safe to run the close\n            // method which will call the runner methods in async.\n            existingAnimation.close();\n          } else {\n            // this will merge the new animation options into existing animation options\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n            return existingAnimation.runner;\n          }\n        } else {\n          // a joined animation means that this animation will take over the existing one\n          // so an example would involve a leave animation taking over an enter. Then when\n          // the postDigest kicks in the enter will be ignored.\n          var joinAnimationFlag = isAllowed('join', element, newAnimation, existingAnimation);\n          if (joinAnimationFlag) {\n            if (existingAnimation.state === RUNNING_STATE) {\n              normalizeAnimationDetails(element, newAnimation);\n            } else {\n              applyGeneratedPreparationClasses(element, isStructural ? event : null, options);\n\n              event = newAnimation.event = existingAnimation.event;\n              options = mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n              //we return the same runner since only the option values of this animation will\n              //be fed into the `existingAnimation`.\n              return existingAnimation.runner;\n            }\n          }\n        }\n      } else {\n        // normalization in this case means that it removes redundant CSS classes that\n        // already exist (addClass) or do not exist (removeClass) on the element\n        normalizeAnimationDetails(element, newAnimation);\n      }\n\n      // when the options are merged and cleaned up we may end up not having to do\n      // an animation at all, therefore we should check this before issuing a post\n      // digest callback. Structural animations will always run no matter what.\n      var isValidAnimation = newAnimation.structural;\n      if (!isValidAnimation) {\n        // animate (from/to) can be quickly checked first, otherwise we check if any classes are present\n        isValidAnimation = (newAnimation.event === 'animate' && Object.keys(newAnimation.options.to || {}).length > 0)\n                            || hasAnimationClasses(newAnimation);\n      }\n\n      if (!isValidAnimation) {\n        close();\n        clearElementAnimationState(element);\n        return runner;\n      }\n\n      // the counter keeps track of cancelled animations\n      var counter = (existingAnimation.counter || 0) + 1;\n      newAnimation.counter = counter;\n\n      markElementAnimationState(element, PRE_DIGEST_STATE, newAnimation);\n\n      $rootScope.$$postDigest(function() {\n        var animationDetails = activeAnimationsLookup.get(node);\n        var animationCancelled = !animationDetails;\n        animationDetails = animationDetails || {};\n\n        // if addClass/removeClass is called before something like enter then the\n        // registered parent element may not be present. The code below will ensure\n        // that a final value for parent element is obtained\n        var parentElement = element.parent() || [];\n\n        // animate/structural/class-based animations all have requirements. Otherwise there\n        // is no point in performing an animation. The parent node must also be set.\n        var isValidAnimation = parentElement.length > 0\n                                && (animationDetails.event === 'animate'\n                                    || animationDetails.structural\n                                    || hasAnimationClasses(animationDetails));\n\n        // this means that the previous animation was cancelled\n        // even if the follow-up animation is the same event\n        if (animationCancelled || animationDetails.counter !== counter || !isValidAnimation) {\n          // if another animation did not take over then we need\n          // to make sure that the domOperation and options are\n          // handled accordingly\n          if (animationCancelled) {\n            applyAnimationClasses(element, options);\n            applyAnimationStyles(element, options);\n          }\n\n          // if the event changed from something like enter to leave then we do\n          // it, otherwise if it's the same then the end result will be the same too\n          if (animationCancelled || (isStructural && animationDetails.event !== event)) {\n            options.domOperation();\n            runner.end();\n          }\n\n          // in the event that the element animation was not cancelled or a follow-up animation\n          // isn't allowed to animate from here then we need to clear the state of the element\n          // so that any future animations won't read the expired animation data.\n          if (!isValidAnimation) {\n            clearElementAnimationState(element);\n          }\n\n          return;\n        }\n\n        // this combined multiple class to addClass / removeClass into a setClass event\n        // so long as a structural event did not take over the animation\n        event = !animationDetails.structural && hasAnimationClasses(animationDetails, true)\n            ? 'setClass'\n            : animationDetails.event;\n\n        markElementAnimationState(element, RUNNING_STATE);\n        var realRunner = $$animation(element, event, animationDetails.options);\n\n        // this will update the runner's flow-control events based on\n        // the `realRunner` object.\n        runner.setHost(realRunner);\n        notifyProgress(runner, event, 'start', {});\n\n        realRunner.done(function(status) {\n          close(!status);\n          var animationDetails = activeAnimationsLookup.get(node);\n          if (animationDetails && animationDetails.counter === counter) {\n            clearElementAnimationState(getDomNode(element));\n          }\n          notifyProgress(runner, event, 'close', {});\n        });\n      });\n\n      return runner;\n\n      function notifyProgress(runner, event, phase, data) {\n        runInNextPostDigestOrNow(function() {\n          var callbacks = findCallbacks(parent, element, event);\n          if (callbacks.length) {\n            // do not optimize this call here to RAF because\n            // we don't know how heavy the callback code here will\n            // be and if this code is buffered then this can\n            // lead to a performance regression.\n            $$rAF(function() {\n              forEach(callbacks, function(callback) {\n                callback(element, phase, data);\n              });\n              cleanupEventListeners(phase, element);\n            });\n          } else {\n            cleanupEventListeners(phase, element);\n          }\n        });\n        runner.progress(event, phase, data);\n      }\n\n      function close(reject) {\n        clearGeneratedClasses(element, options);\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n        runner.complete(!reject);\n      }\n    }\n\n    function closeChildAnimations(element) {\n      var node = getDomNode(element);\n      var children = node.querySelectorAll('[' + NG_ANIMATE_ATTR_NAME + ']');\n      forEach(children, function(child) {\n        var state = parseInt(child.getAttribute(NG_ANIMATE_ATTR_NAME), 10);\n        var animationDetails = activeAnimationsLookup.get(child);\n        if (animationDetails) {\n          switch (state) {\n            case RUNNING_STATE:\n              animationDetails.runner.end();\n              /* falls through */\n            case PRE_DIGEST_STATE:\n              activeAnimationsLookup.remove(child);\n              break;\n          }\n        }\n      });\n    }\n\n    function clearElementAnimationState(element) {\n      var node = getDomNode(element);\n      node.removeAttribute(NG_ANIMATE_ATTR_NAME);\n      activeAnimationsLookup.remove(node);\n    }\n\n    function isMatchingElement(nodeOrElmA, nodeOrElmB) {\n      return getDomNode(nodeOrElmA) === getDomNode(nodeOrElmB);\n    }\n\n    /**\n     * This fn returns false if any of the following is true:\n     * a) animations on any parent element are disabled, and animations on the element aren't explicitly allowed\n     * b) a parent element has an ongoing structural animation, and animateChildren is false\n     * c) the element is not a child of the body\n     * d) the element is not a child of the $rootElement\n     */\n    function areAnimationsAllowed(element, parentElement, event) {\n      var bodyElement = jqLite($document[0].body);\n      var bodyElementDetected = isMatchingElement(element, bodyElement) || element[0].nodeName === 'HTML';\n      var rootElementDetected = isMatchingElement(element, $rootElement);\n      var parentAnimationDetected = false;\n      var animateChildren;\n      var elementDisabled = disabledElementsLookup.get(getDomNode(element));\n\n      var parentHost = jqLite.data(element[0], NG_ANIMATE_PIN_DATA);\n      if (parentHost) {\n        parentElement = parentHost;\n      }\n\n      parentElement = getDomNode(parentElement);\n\n      while (parentElement) {\n        if (!rootElementDetected) {\n          // angular doesn't want to attempt to animate elements outside of the application\n          // therefore we need to ensure that the rootElement is an ancestor of the current element\n          rootElementDetected = isMatchingElement(parentElement, $rootElement);\n        }\n\n        if (parentElement.nodeType !== ELEMENT_NODE) {\n          // no point in inspecting the #document element\n          break;\n        }\n\n        var details = activeAnimationsLookup.get(parentElement) || {};\n        // either an enter, leave or move animation will commence\n        // therefore we can't allow any animations to take place\n        // but if a parent animation is class-based then that's ok\n        if (!parentAnimationDetected) {\n          var parentElementDisabled = disabledElementsLookup.get(parentElement);\n\n          if (parentElementDisabled === true && elementDisabled !== false) {\n            // disable animations if the user hasn't explicitly enabled animations on the\n            // current element\n            elementDisabled = true;\n            // element is disabled via parent element, no need to check anything else\n            break;\n          } else if (parentElementDisabled === false) {\n            elementDisabled = false;\n          }\n          parentAnimationDetected = details.structural;\n        }\n\n        if (isUndefined(animateChildren) || animateChildren === true) {\n          var value = jqLite.data(parentElement, NG_ANIMATE_CHILDREN_DATA);\n          if (isDefined(value)) {\n            animateChildren = value;\n          }\n        }\n\n        // there is no need to continue traversing at this point\n        if (parentAnimationDetected && animateChildren === false) break;\n\n        if (!bodyElementDetected) {\n          // we also need to ensure that the element is or will be a part of the body element\n          // otherwise it is pointless to even issue an animation to be rendered\n          bodyElementDetected = isMatchingElement(parentElement, bodyElement);\n        }\n\n        if (bodyElementDetected && rootElementDetected) {\n          // If both body and root have been found, any other checks are pointless,\n          // as no animation data should live outside the application\n          break;\n        }\n\n        if (!rootElementDetected) {\n          // If no rootElement is detected, check if the parentElement is pinned to another element\n          parentHost = jqLite.data(parentElement, NG_ANIMATE_PIN_DATA);\n          if (parentHost) {\n            // The pin target element becomes the next parent element\n            parentElement = getDomNode(parentHost);\n            continue;\n          }\n        }\n\n        parentElement = parentElement.parentNode;\n      }\n\n      var allowAnimation = (!parentAnimationDetected || animateChildren) && elementDisabled !== true;\n      return allowAnimation && rootElementDetected && bodyElementDetected;\n    }\n\n    function markElementAnimationState(element, state, details) {\n      details = details || {};\n      details.state = state;\n\n      var node = getDomNode(element);\n      node.setAttribute(NG_ANIMATE_ATTR_NAME, state);\n\n      var oldValue = activeAnimationsLookup.get(node);\n      var newValue = oldValue\n          ? extend(oldValue, details)\n          : details;\n      activeAnimationsLookup.put(node, newValue);\n    }\n  }];\n}];\n\n/* exported $$AnimationProvider */\n\nvar $$AnimationProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var NG_ANIMATE_REF_ATTR = 'ng-animate-ref';\n\n  var drivers = this.drivers = [];\n\n  var RUNNER_STORAGE_KEY = '$$animationRunner';\n\n  function setRunner(element, runner) {\n    element.data(RUNNER_STORAGE_KEY, runner);\n  }\n\n  function removeRunner(element) {\n    element.removeData(RUNNER_STORAGE_KEY);\n  }\n\n  function getRunner(element) {\n    return element.data(RUNNER_STORAGE_KEY);\n  }\n\n  this.$get = ['$$jqLite', '$rootScope', '$injector', '$$AnimateRunner', '$$HashMap', '$$rAFScheduler',\n       function($$jqLite,   $rootScope,   $injector,   $$AnimateRunner,   $$HashMap,   $$rAFScheduler) {\n\n    var animationQueue = [];\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function sortAnimations(animations) {\n      var tree = { children: [] };\n      var i, lookup = new $$HashMap();\n\n      // this is done first beforehand so that the hashmap\n      // is filled with a list of the elements that will be animated\n      for (i = 0; i < animations.length; i++) {\n        var animation = animations[i];\n        lookup.put(animation.domNode, animations[i] = {\n          domNode: animation.domNode,\n          fn: animation.fn,\n          children: []\n        });\n      }\n\n      for (i = 0; i < animations.length; i++) {\n        processNode(animations[i]);\n      }\n\n      return flatten(tree);\n\n      function processNode(entry) {\n        if (entry.processed) return entry;\n        entry.processed = true;\n\n        var elementNode = entry.domNode;\n        var parentNode = elementNode.parentNode;\n        lookup.put(elementNode, entry);\n\n        var parentEntry;\n        while (parentNode) {\n          parentEntry = lookup.get(parentNode);\n          if (parentEntry) {\n            if (!parentEntry.processed) {\n              parentEntry = processNode(parentEntry);\n            }\n            break;\n          }\n          parentNode = parentNode.parentNode;\n        }\n\n        (parentEntry || tree).children.push(entry);\n        return entry;\n      }\n\n      function flatten(tree) {\n        var result = [];\n        var queue = [];\n        var i;\n\n        for (i = 0; i < tree.children.length; i++) {\n          queue.push(tree.children[i]);\n        }\n\n        var remainingLevelEntries = queue.length;\n        var nextLevelEntries = 0;\n        var row = [];\n\n        for (i = 0; i < queue.length; i++) {\n          var entry = queue[i];\n          if (remainingLevelEntries <= 0) {\n            remainingLevelEntries = nextLevelEntries;\n            nextLevelEntries = 0;\n            result.push(row);\n            row = [];\n          }\n          row.push(entry.fn);\n          entry.children.forEach(function(childEntry) {\n            nextLevelEntries++;\n            queue.push(childEntry);\n          });\n          remainingLevelEntries--;\n        }\n\n        if (row.length) {\n          result.push(row);\n        }\n\n        return result;\n      }\n    }\n\n    // TODO(matsko): document the signature in a better way\n    return function(element, event, options) {\n      options = prepareAnimationOptions(options);\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      // there is no animation at the current moment, however\n      // these runner methods will get later updated with the\n      // methods leading into the driver's end/cancel methods\n      // for now they just stop the animation from starting\n      var runner = new $$AnimateRunner({\n        end: function() { close(); },\n        cancel: function() { close(true); }\n      });\n\n      if (!drivers.length) {\n        close();\n        return runner;\n      }\n\n      setRunner(element, runner);\n\n      var classes = mergeClasses(element.attr('class'), mergeClasses(options.addClass, options.removeClass));\n      var tempClasses = options.tempClasses;\n      if (tempClasses) {\n        classes += ' ' + tempClasses;\n        options.tempClasses = null;\n      }\n\n      var prepareClassName;\n      if (isStructural) {\n        prepareClassName = 'ng-' + event + PREPARE_CLASS_SUFFIX;\n        $$jqLite.addClass(element, prepareClassName);\n      }\n\n      animationQueue.push({\n        // this data is used by the postDigest code and passed into\n        // the driver step function\n        element: element,\n        classes: classes,\n        event: event,\n        structural: isStructural,\n        options: options,\n        beforeStart: beforeStart,\n        close: close\n      });\n\n      element.on('$destroy', handleDestroyedElement);\n\n      // we only want there to be one function called within the post digest\n      // block. This way we can group animations for all the animations that\n      // were apart of the same postDigest flush call.\n      if (animationQueue.length > 1) return runner;\n\n      $rootScope.$$postDigest(function() {\n        var animations = [];\n        forEach(animationQueue, function(entry) {\n          // the element was destroyed early on which removed the runner\n          // form its storage. This means we can't animate this element\n          // at all and it already has been closed due to destruction.\n          if (getRunner(entry.element)) {\n            animations.push(entry);\n          } else {\n            entry.close();\n          }\n        });\n\n        // now any future animations will be in another postDigest\n        animationQueue.length = 0;\n\n        var groupedAnimations = groupAnimations(animations);\n        var toBeSortedAnimations = [];\n\n        forEach(groupedAnimations, function(animationEntry) {\n          toBeSortedAnimations.push({\n            domNode: getDomNode(animationEntry.from ? animationEntry.from.element : animationEntry.element),\n            fn: function triggerAnimationStart() {\n              // it's important that we apply the `ng-animate` CSS class and the\n              // temporary classes before we do any driver invoking since these\n              // CSS classes may be required for proper CSS detection.\n              animationEntry.beforeStart();\n\n              var startAnimationFn, closeFn = animationEntry.close;\n\n              // in the event that the element was removed before the digest runs or\n              // during the RAF sequencing then we should not trigger the animation.\n              var targetElement = animationEntry.anchors\n                  ? (animationEntry.from.element || animationEntry.to.element)\n                  : animationEntry.element;\n\n              if (getRunner(targetElement)) {\n                var operation = invokeFirstDriver(animationEntry);\n                if (operation) {\n                  startAnimationFn = operation.start;\n                }\n              }\n\n              if (!startAnimationFn) {\n                closeFn();\n              } else {\n                var animationRunner = startAnimationFn();\n                animationRunner.done(function(status) {\n                  closeFn(!status);\n                });\n                updateAnimationRunners(animationEntry, animationRunner);\n              }\n            }\n          });\n        });\n\n        // we need to sort each of the animations in order of parent to child\n        // relationships. This ensures that the child classes are applied at the\n        // right time.\n        $$rAFScheduler(sortAnimations(toBeSortedAnimations));\n      });\n\n      return runner;\n\n      // TODO(matsko): change to reference nodes\n      function getAnchorNodes(node) {\n        var SELECTOR = '[' + NG_ANIMATE_REF_ATTR + ']';\n        var items = node.hasAttribute(NG_ANIMATE_REF_ATTR)\n              ? [node]\n              : node.querySelectorAll(SELECTOR);\n        var anchors = [];\n        forEach(items, function(node) {\n          var attr = node.getAttribute(NG_ANIMATE_REF_ATTR);\n          if (attr && attr.length) {\n            anchors.push(node);\n          }\n        });\n        return anchors;\n      }\n\n      function groupAnimations(animations) {\n        var preparedAnimations = [];\n        var refLookup = {};\n        forEach(animations, function(animation, index) {\n          var element = animation.element;\n          var node = getDomNode(element);\n          var event = animation.event;\n          var enterOrMove = ['enter', 'move'].indexOf(event) >= 0;\n          var anchorNodes = animation.structural ? getAnchorNodes(node) : [];\n\n          if (anchorNodes.length) {\n            var direction = enterOrMove ? 'to' : 'from';\n\n            forEach(anchorNodes, function(anchor) {\n              var key = anchor.getAttribute(NG_ANIMATE_REF_ATTR);\n              refLookup[key] = refLookup[key] || {};\n              refLookup[key][direction] = {\n                animationID: index,\n                element: jqLite(anchor)\n              };\n            });\n          } else {\n            preparedAnimations.push(animation);\n          }\n        });\n\n        var usedIndicesLookup = {};\n        var anchorGroups = {};\n        forEach(refLookup, function(operations, key) {\n          var from = operations.from;\n          var to = operations.to;\n\n          if (!from || !to) {\n            // only one of these is set therefore we can't have an\n            // anchor animation since all three pieces are required\n            var index = from ? from.animationID : to.animationID;\n            var indexKey = index.toString();\n            if (!usedIndicesLookup[indexKey]) {\n              usedIndicesLookup[indexKey] = true;\n              preparedAnimations.push(animations[index]);\n            }\n            return;\n          }\n\n          var fromAnimation = animations[from.animationID];\n          var toAnimation = animations[to.animationID];\n          var lookupKey = from.animationID.toString();\n          if (!anchorGroups[lookupKey]) {\n            var group = anchorGroups[lookupKey] = {\n              structural: true,\n              beforeStart: function() {\n                fromAnimation.beforeStart();\n                toAnimation.beforeStart();\n              },\n              close: function() {\n                fromAnimation.close();\n                toAnimation.close();\n              },\n              classes: cssClassesIntersection(fromAnimation.classes, toAnimation.classes),\n              from: fromAnimation,\n              to: toAnimation,\n              anchors: [] // TODO(matsko): change to reference nodes\n            };\n\n            // the anchor animations require that the from and to elements both have at least\n            // one shared CSS class which effectively marries the two elements together to use\n            // the same animation driver and to properly sequence the anchor animation.\n            if (group.classes.length) {\n              preparedAnimations.push(group);\n            } else {\n              preparedAnimations.push(fromAnimation);\n              preparedAnimations.push(toAnimation);\n            }\n          }\n\n          anchorGroups[lookupKey].anchors.push({\n            'out': from.element, 'in': to.element\n          });\n        });\n\n        return preparedAnimations;\n      }\n\n      function cssClassesIntersection(a,b) {\n        a = a.split(' ');\n        b = b.split(' ');\n        var matches = [];\n\n        for (var i = 0; i < a.length; i++) {\n          var aa = a[i];\n          if (aa.substring(0,3) === 'ng-') continue;\n\n          for (var j = 0; j < b.length; j++) {\n            if (aa === b[j]) {\n              matches.push(aa);\n              break;\n            }\n          }\n        }\n\n        return matches.join(' ');\n      }\n\n      function invokeFirstDriver(animationDetails) {\n        // we loop in reverse order since the more general drivers (like CSS and JS)\n        // may attempt more elements, but custom drivers are more particular\n        for (var i = drivers.length - 1; i >= 0; i--) {\n          var driverName = drivers[i];\n          var factory = $injector.get(driverName);\n          var driver = factory(animationDetails);\n          if (driver) {\n            return driver;\n          }\n        }\n      }\n\n      function beforeStart() {\n        element.addClass(NG_ANIMATE_CLASSNAME);\n        if (tempClasses) {\n          $$jqLite.addClass(element, tempClasses);\n        }\n        if (prepareClassName) {\n          $$jqLite.removeClass(element, prepareClassName);\n          prepareClassName = null;\n        }\n      }\n\n      function updateAnimationRunners(animation, newRunner) {\n        if (animation.from && animation.to) {\n          update(animation.from.element);\n          update(animation.to.element);\n        } else {\n          update(animation.element);\n        }\n\n        function update(element) {\n          var runner = getRunner(element);\n          if (runner) runner.setHost(newRunner);\n        }\n      }\n\n      function handleDestroyedElement() {\n        var runner = getRunner(element);\n        if (runner && (event !== 'leave' || !options.$$domOperationFired)) {\n          runner.end();\n        }\n      }\n\n      function close(rejected) {\n        element.off('$destroy', handleDestroyedElement);\n        removeRunner(element);\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n\n        if (tempClasses) {\n          $$jqLite.removeClass(element, tempClasses);\n        }\n\n        element.removeClass(NG_ANIMATE_CLASSNAME);\n        runner.complete(!rejected);\n      }\n    };\n  }];\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateSwap\n * @restrict A\n * @scope\n *\n * @description\n *\n * ngAnimateSwap is a animation-oriented directive that allows for the container to\n * be removed and entered in whenever the associated expression changes. A\n * common usecase for this directive is a rotating banner or slider component which\n * contains one image being present at a time. When the active image changes\n * then the old image will perform a `leave` animation and the new element\n * will be inserted via an `enter` animation.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|--------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the new element is inserted to the DOM  |\n * | {@link ng.$animate#leave leave}  | when the old element is removed from the DOM |\n *\n * @example\n * <example name=\"ngAnimateSwap-directive\" module=\"ngAnimateSwapExample\"\n *          deps=\"angular-animate.js\"\n *          animations=\"true\" fixBase=\"true\">\n *   <file name=\"index.html\">\n *     <div class=\"container\" ng-controller=\"AppCtrl\">\n *       <div ng-animate-swap=\"number\" class=\"cell swap-animation\" ng-class=\"colorClass(number)\">\n *         {{ number }}\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"script.js\">\n *     angular.module('ngAnimateSwapExample', ['ngAnimate'])\n *       .controller('AppCtrl', ['$scope', '$interval', function($scope, $interval) {\n *         $scope.number = 0;\n *         $interval(function() {\n *           $scope.number++;\n *         }, 1000);\n *\n *         var colors = ['red','blue','green','yellow','orange'];\n *         $scope.colorClass = function(number) {\n *           return colors[number % colors.length];\n *         };\n *       }]);\n *   </file>\n *  <file name=\"animations.css\">\n *  .container {\n *    height:250px;\n *    width:250px;\n *    position:relative;\n *    overflow:hidden;\n *    border:2px solid black;\n *  }\n *  .container .cell {\n *    font-size:150px;\n *    text-align:center;\n *    line-height:250px;\n *    position:absolute;\n *    top:0;\n *    left:0;\n *    right:0;\n *    border-bottom:2px solid black;\n *  }\n *  .swap-animation.ng-enter, .swap-animation.ng-leave {\n *    transition:0.5s linear all;\n *  }\n *  .swap-animation.ng-enter {\n *    top:-250px;\n *  }\n *  .swap-animation.ng-enter-active {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave-active {\n *    top:250px;\n *  }\n *  .red { background:red; }\n *  .green { background:green; }\n *  .blue { background:blue; }\n *  .yellow { background:yellow; }\n *  .orange { background:orange; }\n *  </file>\n * </example>\n */\nvar ngAnimateSwapDirective = ['$animate', '$rootScope', function($animate, $rootScope) {\n  return {\n    restrict: 'A',\n    transclude: 'element',\n    terminal: true,\n    priority: 600, // we use 600 here to ensure that the directive is caught before others\n    link: function(scope, $element, attrs, ctrl, $transclude) {\n      var previousElement, previousScope;\n      scope.$watchCollection(attrs.ngAnimateSwap || attrs['for'], function(value) {\n        if (previousElement) {\n          $animate.leave(previousElement);\n        }\n        if (previousScope) {\n          previousScope.$destroy();\n          previousScope = null;\n        }\n        if (value || value === 0) {\n          previousScope = scope.$new();\n          $transclude(previousScope, function(element) {\n            previousElement = element;\n            $animate.enter(element, null, $element);\n          });\n        }\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc module\n * @name ngAnimate\n * @description\n *\n * The `ngAnimate` module provides support for CSS-based animations (keyframes and transitions) as well as JavaScript-based animations via\n * callback hooks. Animations are not enabled by default, however, by including `ngAnimate` the animation hooks are enabled for an Angular app.\n *\n * <div doc-module-components=\"ngAnimate\"></div>\n *\n * # Usage\n * Simply put, there are two ways to make use of animations when ngAnimate is used: by using **CSS** and **JavaScript**. The former works purely based\n * using CSS (by using matching CSS selectors/styles) and the latter triggers animations that are registered via `module.animation()`. For\n * both CSS and JS animations the sole requirement is to have a matching `CSS class` that exists both in the registered animation and within\n * the HTML element that the animation will be triggered on.\n *\n * ## Directive Support\n * The following directives are \"animation aware\":\n *\n * | Directive                                                                                                | Supported Animations                                                     |\n * |----------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------|\n * | {@link ng.directive:ngRepeat#animations ngRepeat}                                                        | enter, leave and move                                                    |\n * | {@link ngRoute.directive:ngView#animations ngView}                                                       | enter and leave                                                          |\n * | {@link ng.directive:ngInclude#animations ngInclude}                                                      | enter and leave                                                          |\n * | {@link ng.directive:ngSwitch#animations ngSwitch}                                                        | enter and leave                                                          |\n * | {@link ng.directive:ngIf#animations ngIf}                                                                | enter and leave                                                          |\n * | {@link ng.directive:ngClass#animations ngClass}                                                          | add and remove (the CSS class(es) present)                               |\n * | {@link ng.directive:ngShow#animations ngShow} & {@link ng.directive:ngHide#animations ngHide}            | add and remove (the ng-hide class value)                                 |\n * | {@link ng.directive:form#animation-hooks form} & {@link ng.directive:ngModel#animation-hooks ngModel}    | add and remove (dirty, pristine, valid, invalid & all other validations) |\n * | {@link module:ngMessages#animations ngMessages}                                                          | add and remove (ng-active & ng-inactive)                                 |\n * | {@link module:ngMessages#animations ngMessage}                                                           | enter and leave                                                          |\n *\n * (More information can be found by visiting each the documentation associated with each directive.)\n *\n * ## CSS-based Animations\n *\n * CSS-based animations with ngAnimate are unique since they require no JavaScript code at all. By using a CSS class that we reference between our HTML\n * and CSS code we can create an animation that will be picked up by Angular when an underlying directive performs an operation.\n *\n * The example below shows how an `enter` animation can be made possible on an element using `ng-if`:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"fade\">\n *    Fade me in out\n * </div>\n * <button ng-click=\"bool=true\">Fade In!</button>\n * <button ng-click=\"bool=false\">Fade Out!</button>\n * ```\n *\n * Notice the CSS class **fade**? We can now create the CSS transition code that references this class:\n *\n * ```css\n * /&#42; The starting CSS styles for the enter animation &#42;/\n * .fade.ng-enter {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n *\n * /&#42; The finishing CSS styles for the enter animation &#42;/\n * .fade.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * ```\n *\n * The key thing to remember here is that, depending on the animation event (which each of the directives above trigger depending on what's going on) two\n * generated CSS classes will be applied to the element; in the example above we have `.ng-enter` and `.ng-enter-active`. For CSS transitions, the transition\n * code **must** be defined within the starting CSS class (in this case `.ng-enter`). The destination class is what the transition will animate towards.\n *\n * If for example we wanted to create animations for `leave` and `move` (ngRepeat triggers move) then we can do so using the same CSS naming conventions:\n *\n * ```css\n * /&#42; now the element will fade out before it is removed from the DOM &#42;/\n * .fade.ng-leave {\n *   transition:0.5s linear all;\n *   opacity:1;\n * }\n * .fade.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * We can also make use of **CSS Keyframes** by referencing the keyframe animation within the starting CSS class:\n *\n * ```css\n * /&#42; there is no need to define anything inside of the destination\n * CSS class since the keyframe will take charge of the animation &#42;/\n * .fade.ng-leave {\n *   animation: my_fade_animation 0.5s linear;\n *   -webkit-animation: my_fade_animation 0.5s linear;\n * }\n *\n * @keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n *\n * @-webkit-keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n * ```\n *\n * Feel free also mix transitions and keyframes together as well as any other CSS classes on the same element.\n *\n * ### CSS Class-based Animations\n *\n * Class-based animations (animations that are triggered via `ngClass`, `ngShow`, `ngHide` and some other directives) have a slightly different\n * naming convention. Class-based animations are basic enough that a standard transition or keyframe can be referenced on the class being added\n * and removed.\n *\n * For example if we wanted to do a CSS animation for `ngHide` then we place an animation on the `.ng-hide` CSS class:\n *\n * ```html\n * <div ng-show=\"bool\" class=\"fade\">\n *   Show and hide me\n * </div>\n * <button ng-click=\"bool=!bool\">Toggle</button>\n *\n * <style>\n * .fade.ng-hide {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n * </style>\n * ```\n *\n * All that is going on here with ngShow/ngHide behind the scenes is the `.ng-hide` class is added/removed (when the hidden state is valid). Since\n * ngShow and ngHide are animation aware then we can match up a transition and ngAnimate handles the rest.\n *\n * In addition the addition and removal of the CSS class, ngAnimate also provides two helper methods that we can use to further decorate the animation\n * with CSS styles.\n *\n * ```html\n * <div ng-class=\"{on:onOff}\" class=\"highlight\">\n *   Highlight this box\n * </div>\n * <button ng-click=\"onOff=!onOff\">Toggle</button>\n *\n * <style>\n * .highlight {\n *   transition:0.5s linear all;\n * }\n * .highlight.on-add {\n *   background:white;\n * }\n * .highlight.on {\n *   background:yellow;\n * }\n * .highlight.on-remove {\n *   background:black;\n * }\n * </style>\n * ```\n *\n * We can also make use of CSS keyframes by placing them within the CSS classes.\n *\n *\n * ### CSS Staggering Animations\n * A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a\n * curtain-like effect. The ngAnimate module (versions >=1.2) supports staggering animations and the stagger effect can be\n * performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for\n * the animation. The style property expected within the stagger class can either be a **transition-delay** or an\n * **animation-delay** property (or both if your animation contains both transitions and keyframe animations).\n *\n * ```css\n * .my-animation.ng-enter {\n *   /&#42; standard transition code &#42;/\n *   transition: 1s linear all;\n *   opacity:0;\n * }\n * .my-animation.ng-enter-stagger {\n *   /&#42; this will have a 100ms delay between each successive leave animation &#42;/\n *   transition-delay: 0.1s;\n *\n *   /&#42; As of 1.4.4, this must always be set: it signals ngAnimate\n *     to not accidentally inherit a delay property from another CSS class &#42;/\n *   transition-duration: 0s;\n * }\n * .my-animation.ng-enter.ng-enter-active {\n *   /&#42; standard transition styles &#42;/\n *   opacity:1;\n * }\n * ```\n *\n * Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations\n * on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this\n * are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation\n * will also be reset if one or more animation frames have passed since the multiple calls to `$animate` were fired.\n *\n * The following code will issue the **ng-leave-stagger** event on the element provided:\n *\n * ```js\n * var kids = parent.children();\n *\n * $animate.leave(kids[0]); //stagger index=0\n * $animate.leave(kids[1]); //stagger index=1\n * $animate.leave(kids[2]); //stagger index=2\n * $animate.leave(kids[3]); //stagger index=3\n * $animate.leave(kids[4]); //stagger index=4\n *\n * window.requestAnimationFrame(function() {\n *   //stagger has reset itself\n *   $animate.leave(kids[5]); //stagger index=0\n *   $animate.leave(kids[6]); //stagger index=1\n *\n *   $scope.$digest();\n * });\n * ```\n *\n * Stagger animations are currently only supported within CSS-defined animations.\n *\n * ### The `ng-animate` CSS class\n *\n * When ngAnimate is animating an element it will apply the `ng-animate` CSS class to the element for the duration of the animation.\n * This is a temporary CSS class and it will be removed once the animation is over (for both JavaScript and CSS-based animations).\n *\n * Therefore, animations can be applied to an element using this temporary class directly via CSS.\n *\n * ```css\n * .zipper.ng-animate {\n *   transition:0.5s linear all;\n * }\n * .zipper.ng-enter {\n *   opacity:0;\n * }\n * .zipper.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * .zipper.ng-leave {\n *   opacity:1;\n * }\n * .zipper.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * (Note that the `ng-animate` CSS class is reserved and it cannot be applied on an element directly since ngAnimate will always remove\n * the CSS class once an animation has completed.)\n *\n *\n * ### The `ng-[event]-prepare` class\n *\n * This is a special class that can be used to prevent unwanted flickering / flash of content before\n * the actual animation starts. The class is added as soon as an animation is initialized, but removed\n * before the actual animation starts (after waiting for a $digest).\n * It is also only added for *structural* animations (`enter`, `move`, and `leave`).\n *\n * In practice, flickering can appear when nesting elements with structural animations such as `ngIf`\n * into elements that have class-based animations such as `ngClass`.\n *\n * ```html\n * <div ng-class=\"{red: myProp}\">\n *   <div ng-class=\"{blue: myProp}\">\n *     <div class=\"message\" ng-if=\"myProp\"></div>\n *   </div>\n * </div>\n * ```\n *\n * It is possible that during the `enter` animation, the `.message` div will be briefly visible before it starts animating.\n * In that case, you can add styles to the CSS that make sure the element stays hidden before the animation starts:\n *\n * ```css\n * .message.ng-enter-prepare {\n *   opacity: 0;\n * }\n *\n * ```\n *\n * ## JavaScript-based Animations\n *\n * ngAnimate also allows for animations to be consumed by JavaScript code. The approach is similar to CSS-based animations (where there is a shared\n * CSS class that is referenced in our HTML code) but in addition we need to register the JavaScript animation on the module. By making use of the\n * `module.animation()` module function we can register the animation.\n *\n * Let's see an example of a enter/leave animation using `ngRepeat`:\n *\n * ```html\n * <div ng-repeat=\"item in items\" class=\"slide\">\n *   {{ item }}\n * </div>\n * ```\n *\n * See the **slide** CSS class? Let's use that class to define an animation that we'll structure in our module code by using `module.animation`:\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     // make note that other events (like addClass/removeClass)\n *     // have different function input parameters\n *     enter: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *\n *       // remember to call doneFn so that angular\n *       // knows that the animation has concluded\n *     },\n *\n *     move: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *     },\n *\n *     leave: function(element, doneFn) {\n *       jQuery(element).fadeOut(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing about JS-based animations is that we can inject other services and make use of advanced animation libraries such as\n * greensock.js and velocity.js.\n *\n * If our animation code class-based (meaning that something like `ngClass`, `ngHide` and `ngShow` triggers it) then we can still define\n * our animations inside of the same registered animation, however, the function input arguments are a bit different:\n *\n * ```html\n * <div ng-class=\"color\" class=\"colorful\">\n *   this box is moody\n * </div>\n * <button ng-click=\"color='red'\">Change to red</button>\n * <button ng-click=\"color='blue'\">Change to blue</button>\n * <button ng-click=\"color='green'\">Change to green</button>\n * ```\n *\n * ```js\n * myModule.animation('.colorful', [function() {\n *   return {\n *     addClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     removeClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     setClass: function(element, addedClass, removedClass, doneFn) {\n *       // do some cool animation and call the doneFn\n *     }\n *   }\n * }]);\n * ```\n *\n * ## CSS + JS Animations Together\n *\n * AngularJS 1.4 and higher has taken steps to make the amalgamation of CSS and JS animations more flexible. However, unlike earlier versions of Angular,\n * defining CSS and JS animations to work off of the same CSS class will not work anymore. Therefore the example below will only result in **JS animations taking\n * charge of the animation**:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"slide\">\n *   Slide in and out\n * </div>\n * ```\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     enter: function(element, doneFn) {\n *       jQuery(element).slideIn(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * ```css\n * .slide.ng-enter {\n *   transition:0.5s linear all;\n *   transform:translateY(-100px);\n * }\n * .slide.ng-enter.ng-enter-active {\n *   transform:translateY(0);\n * }\n * ```\n *\n * Does this mean that CSS and JS animations cannot be used together? Do JS-based animations always have higher priority? We can make up for the\n * lack of CSS animations by using the `$animateCss` service to trigger our own tweaked-out, CSS-based animations directly from\n * our own JS-based animation code:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n*        // this will trigger `.slide.ng-enter` and `.slide.ng-enter-active`.\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing here is that we can save bandwidth by sticking to our CSS-based animation code and we don't need to rely on a 3rd-party animation framework.\n *\n * The `$animateCss` service is very powerful since we can feed in all kinds of extra properties that will be evaluated and fed into a CSS transition or\n * keyframe animation. For example if we wanted to animate the height of an element while adding and removing classes then we can do so by providing that\n * data into `$animateCss` directly:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true,\n *         addClass: 'maroon-setting',\n *         from: { height:0 },\n *         to: { height: 200 }\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Now we can fill in the rest via our transition CSS code:\n *\n * ```css\n * /&#42; the transition tells ngAnimate to make the animation happen &#42;/\n * .slide.ng-enter { transition:0.5s linear all; }\n *\n * /&#42; this extra CSS class will be absorbed into the transition\n * since the $animateCss code is adding the class &#42;/\n * .maroon-setting { background:red; }\n * ```\n *\n * And `$animateCss` will figure out the rest. Just make sure to have the `done()` callback fire the `doneFn` function to signal when the animation is over.\n *\n * To learn more about what's possible be sure to visit the {@link ngAnimate.$animateCss $animateCss service}.\n *\n * ## Animation Anchoring (via `ng-animate-ref`)\n *\n * ngAnimate in AngularJS 1.4 comes packed with the ability to cross-animate elements between\n * structural areas of an application (like views) by pairing up elements using an attribute\n * called `ng-animate-ref`.\n *\n * Let's say for example we have two views that are managed by `ng-view` and we want to show\n * that there is a relationship between two components situated in within these views. By using the\n * `ng-animate-ref` attribute we can identify that the two components are paired together and we\n * can then attach an animation, which is triggered when the view changes.\n *\n * Say for example we have the following template code:\n *\n * ```html\n * <!-- index.html -->\n * <div ng-view class=\"view-animation\">\n * </div>\n *\n * <!-- home.html -->\n * <a href=\"#/banner-page\">\n *   <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * </a>\n *\n * <!-- banner-page.html -->\n * <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * ```\n *\n * Now, when the view changes (once the link is clicked), ngAnimate will examine the\n * HTML contents to see if there is a match reference between any components in the view\n * that is leaving and the view that is entering. It will scan both the view which is being\n * removed (leave) and inserted (enter) to see if there are any paired DOM elements that\n * contain a matching ref value.\n *\n * The two images match since they share the same ref value. ngAnimate will now create a\n * transport element (which is a clone of the first image element) and it will then attempt\n * to animate to the position of the second image element in the next view. For the animation to\n * work a special CSS class called `ng-anchor` will be added to the transported element.\n *\n * We can now attach a transition onto the `.banner.ng-anchor` CSS class and then\n * ngAnimate will handle the entire transition for us as well as the addition and removal of\n * any changes of CSS classes between the elements:\n *\n * ```css\n * .banner.ng-anchor {\n *   /&#42; this animation will last for 1 second since there are\n *          two phases to the animation (an `in` and an `out` phase) &#42;/\n *   transition:0.5s linear all;\n * }\n * ```\n *\n * We also **must** include animations for the views that are being entered and removed\n * (otherwise anchoring wouldn't be possible since the new view would be inserted right away).\n *\n * ```css\n * .view-animation.ng-enter, .view-animation.ng-leave {\n *   transition:0.5s linear all;\n *   position:fixed;\n *   left:0;\n *   top:0;\n *   width:100%;\n * }\n * .view-animation.ng-enter {\n *   transform:translateX(100%);\n * }\n * .view-animation.ng-leave,\n * .view-animation.ng-enter.ng-enter-active {\n *   transform:translateX(0%);\n * }\n * .view-animation.ng-leave.ng-leave-active {\n *   transform:translateX(-100%);\n * }\n * ```\n *\n * Now we can jump back to the anchor animation. When the animation happens, there are two stages that occur:\n * an `out` and an `in` stage. The `out` stage happens first and that is when the element is animated away\n * from its origin. Once that animation is over then the `in` stage occurs which animates the\n * element to its destination. The reason why there are two animations is to give enough time\n * for the enter animation on the new element to be ready.\n *\n * The example above sets up a transition for both the in and out phases, but we can also target the out or\n * in phases directly via `ng-anchor-out` and `ng-anchor-in`.\n *\n * ```css\n * .banner.ng-anchor-out {\n *   transition: 0.5s linear all;\n *\n *   /&#42; the scale will be applied during the out animation,\n *          but will be animated away when the in animation runs &#42;/\n *   transform: scale(1.2);\n * }\n *\n * .banner.ng-anchor-in {\n *   transition: 1s linear all;\n * }\n * ```\n *\n *\n *\n *\n * ### Anchoring Demo\n *\n  <example module=\"anchoringExample\"\n           name=\"anchoringExample\"\n           id=\"anchoringExample\"\n           deps=\"angular-animate.js;angular-route.js\"\n           animations=\"true\">\n    <file name=\"index.html\">\n      <a href=\"#/\">Home</a>\n      <hr />\n      <div class=\"view-container\">\n        <div ng-view class=\"view\"></div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('anchoringExample', ['ngAnimate', 'ngRoute'])\n        .config(['$routeProvider', function($routeProvider) {\n          $routeProvider.when('/', {\n            templateUrl: 'home.html',\n            controller: 'HomeController as home'\n          });\n          $routeProvider.when('/profile/:id', {\n            templateUrl: 'profile.html',\n            controller: 'ProfileController as profile'\n          });\n        }])\n        .run(['$rootScope', function($rootScope) {\n          $rootScope.records = [\n            { id: 1, title: 'Miss Beulah Roob' },\n            { id: 2, title: 'Trent Morissette' },\n            { id: 3, title: 'Miss Ava Pouros' },\n            { id: 4, title: 'Rod Pouros' },\n            { id: 5, title: 'Abdul Rice' },\n            { id: 6, title: 'Laurie Rutherford Sr.' },\n            { id: 7, title: 'Nakia McLaughlin' },\n            { id: 8, title: 'Jordon Blanda DVM' },\n            { id: 9, title: 'Rhoda Hand' },\n            { id: 10, title: 'Alexandrea Sauer' }\n          ];\n        }])\n        .controller('HomeController', [function() {\n          //empty\n        }])\n        .controller('ProfileController', ['$rootScope', '$routeParams',\n            function ProfileController($rootScope, $routeParams) {\n          var index = parseInt($routeParams.id, 10);\n          var record = $rootScope.records[index - 1];\n\n          this.title = record.title;\n          this.id = record.id;\n        }]);\n    </file>\n    <file name=\"home.html\">\n      <h2>Welcome to the home page</h1>\n      <p>Please click on an element</p>\n      <a class=\"record\"\n         ng-href=\"#/profile/{{ record.id }}\"\n         ng-animate-ref=\"{{ record.id }}\"\n         ng-repeat=\"record in records\">\n        {{ record.title }}\n      </a>\n    </file>\n    <file name=\"profile.html\">\n      <div class=\"profile record\" ng-animate-ref=\"{{ profile.id }}\">\n        {{ profile.title }}\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .record {\n        display:block;\n        font-size:20px;\n      }\n      .profile {\n        background:black;\n        color:white;\n        font-size:100px;\n      }\n      .view-container {\n        position:relative;\n      }\n      .view-container > .view.ng-animate {\n        position:absolute;\n        top:0;\n        left:0;\n        width:100%;\n        min-height:500px;\n      }\n      .view.ng-enter, .view.ng-leave,\n      .record.ng-anchor {\n        transition:0.5s linear all;\n      }\n      .view.ng-enter {\n        transform:translateX(100%);\n      }\n      .view.ng-enter.ng-enter-active, .view.ng-leave {\n        transform:translateX(0%);\n      }\n      .view.ng-leave.ng-leave-active {\n        transform:translateX(-100%);\n      }\n      .record.ng-anchor-out {\n        background:red;\n      }\n    </file>\n  </example>\n *\n * ### How is the element transported?\n *\n * When an anchor animation occurs, ngAnimate will clone the starting element and position it exactly where the starting\n * element is located on screen via absolute positioning. The cloned element will be placed inside of the root element\n * of the application (where ng-app was defined) and all of the CSS classes of the starting element will be applied. The\n * element will then animate into the `out` and `in` animations and will eventually reach the coordinates and match\n * the dimensions of the destination element. During the entire animation a CSS class of `.ng-animate-shim` will be applied\n * to both the starting and destination elements in order to hide them from being visible (the CSS styling for the class\n * is: `visibility:hidden`). Once the anchor reaches its destination then it will be removed and the destination element\n * will become visible since the shim class will be removed.\n *\n * ### How is the morphing handled?\n *\n * CSS Anchoring relies on transitions and keyframes and the internal code is intelligent enough to figure out\n * what CSS classes differ between the starting element and the destination element. These different CSS classes\n * will be added/removed on the anchor element and a transition will be applied (the transition that is provided\n * in the anchor class). Long story short, ngAnimate will figure out what classes to add and remove which will\n * make the transition of the element as smooth and automatic as possible. Be sure to use simple CSS classes that\n * do not rely on DOM nesting structure so that the anchor element appears the same as the starting element (since\n * the cloned element is placed inside of root element which is likely close to the body element).\n *\n * Note that if the root element is on the `<html>` element then the cloned node will be placed inside of body.\n *\n *\n * ## Using $animate in your directive code\n *\n * So far we've explored how to feed in animations into an Angular application, but how do we trigger animations within our own directives in our application?\n * By injecting the `$animate` service into our directive code, we can trigger structural and class-based hooks which can then be consumed by animations. Let's\n * imagine we have a greeting box that shows and hides itself when the data changes\n *\n * ```html\n * <greeting-box active=\"onOrOff\">Hi there</greeting-box>\n * ```\n *\n * ```js\n * ngModule.directive('greetingBox', ['$animate', function($animate) {\n *   return function(scope, element, attrs) {\n *     attrs.$observe('active', function(value) {\n *       value ? $animate.addClass(element, 'on') : $animate.removeClass(element, 'on');\n *     });\n *   });\n * }]);\n * ```\n *\n * Now the `on` CSS class is added and removed on the greeting box component. Now if we add a CSS class on top of the greeting box element\n * in our HTML code then we can trigger a CSS or JS animation to happen.\n *\n * ```css\n * /&#42; normally we would create a CSS class to reference on the element &#42;/\n * greeting-box.on { transition:0.5s linear all; background:green; color:white; }\n * ```\n *\n * The `$animate` service contains a variety of other methods like `enter`, `leave`, `animate` and `setClass`. To learn more about what's\n * possible be sure to visit the {@link ng.$animate $animate service API page}.\n *\n *\n * ## Callbacks and Promises\n *\n * When `$animate` is called it returns a promise that can be used to capture when the animation has ended. Therefore if we were to trigger\n * an animation (within our directive code) then we can continue performing directive and scope related activities after the animation has\n * ended by chaining onto the returned promise that animation method returns.\n *\n * ```js\n * // somewhere within the depths of the directive\n * $animate.enter(element, parent).then(function() {\n *   //the animation has completed\n * });\n * ```\n *\n * (Note that earlier versions of Angular prior to v1.4 required the promise code to be wrapped using `$scope.$apply(...)`. This is not the case\n * anymore.)\n *\n * In addition to the animation promise, we can also make use of animation-related callbacks within our directives and controller code by registering\n * an event listener using the `$animate` service. Let's say for example that an animation was triggered on our view\n * routing controller to hook into that:\n *\n * ```js\n * ngModule.controller('HomePageController', ['$animate', function($animate) {\n *   $animate.on('enter', ngViewElement, function(element) {\n *     // the animation for this route has completed\n *   }]);\n * }])\n * ```\n *\n * (Note that you will need to trigger a digest within the callback to get angular to notice any scope-related changes.)\n */\n\nvar copy;\nvar extend;\nvar forEach;\nvar isArray;\nvar isDefined;\nvar isElement;\nvar isFunction;\nvar isObject;\nvar isString;\nvar isUndefined;\nvar jqLite;\nvar noop;\n\n/**\n * @ngdoc service\n * @name $animate\n * @kind object\n *\n * @description\n * The ngAnimate `$animate` service documentation is the same for the core `$animate` service.\n *\n * Click here {@link ng.$animate to learn more about animations with `$animate`}.\n */\nangular.module('ngAnimate', [], function initAngularHelpers() {\n  // Access helpers from angular core.\n  // Do it inside a `config` block to ensure `window.angular` is available.\n  noop        = angular.noop;\n  copy        = angular.copy;\n  extend      = angular.extend;\n  jqLite      = angular.element;\n  forEach     = angular.forEach;\n  isArray     = angular.isArray;\n  isString    = angular.isString;\n  isObject    = angular.isObject;\n  isUndefined = angular.isUndefined;\n  isDefined   = angular.isDefined;\n  isFunction  = angular.isFunction;\n  isElement   = angular.isElement;\n})\n  .directive('ngAnimateSwap', ngAnimateSwapDirective)\n\n  .directive('ngAnimateChildren', $$AnimateChildrenDirective)\n  .factory('$$rAFScheduler', $$rAFSchedulerFactory)\n\n  .provider('$$animateQueue', $$AnimateQueueProvider)\n  .provider('$$animation', $$AnimationProvider)\n\n  .provider('$animateCss', $AnimateCssProvider)\n  .provider('$$animateCssDriver', $$AnimateCssDriverProvider)\n\n  .provider('$$animateJs', $$AnimateJsProvider)\n  .provider('$$animateJsDriver', $$AnimateJsDriverProvider);\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.5/angular-mocks.js",
    "content": "/**\n * @license AngularJS v1.5.11\n * (c) 2010-2017 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {\n\n'use strict';\n\n/**\n * @ngdoc object\n * @name angular.mock\n * @description\n *\n * Namespace from 'angular-mocks.js' which contains testing related code.\n *\n */\nangular.mock = {};\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n *\n * @description\n * This service is a mock implementation of {@link ng.$browser}. It provides fake\n * implementation for commonly used browser apis that are hard to test, e.g. setTimeout, xhr,\n * cookies, etc.\n *\n * The api of this service is the same as that of the real {@link ng.$browser $browser}, except\n * that there are several helper methods available which can be used in tests.\n */\nangular.mock.$BrowserProvider = function() {\n  this.$get = function() {\n    return new angular.mock.$Browser();\n  };\n};\n\nangular.mock.$Browser = function() {\n  var self = this;\n\n  this.isMock = true;\n  self.$$url = 'http://server/';\n  self.$$lastUrl = self.$$url; // used by url polling fn\n  self.pollFns = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = angular.noop;\n  self.$$incOutstandingRequestCount = angular.noop;\n\n\n  // register url polling fn\n\n  self.onUrlChange = function(listener) {\n    self.pollFns.push(\n      function() {\n        if (self.$$lastUrl !== self.$$url || self.$$state !== self.$$lastState) {\n          self.$$lastUrl = self.$$url;\n          self.$$lastState = self.$$state;\n          listener(self.$$url, self.$$state);\n        }\n      }\n    );\n\n    return listener;\n  };\n\n  self.$$applicationDestroyed = angular.noop;\n  self.$$checkUrlChange = angular.noop;\n\n  self.deferredFns = [];\n  self.deferredNextId = 0;\n\n  self.defer = function(fn, delay) {\n    delay = delay || 0;\n    self.deferredFns.push({time:(self.defer.now + delay), fn:fn, id: self.deferredNextId});\n    self.deferredFns.sort(function(a, b) { return a.time - b.time;});\n    return self.deferredNextId++;\n  };\n\n\n  /**\n   * @name $browser#defer.now\n   *\n   * @description\n   * Current milliseconds mock time.\n   */\n  self.defer.now = 0;\n\n\n  self.defer.cancel = function(deferId) {\n    var fnIndex;\n\n    angular.forEach(self.deferredFns, function(fn, index) {\n      if (fn.id === deferId) fnIndex = index;\n    });\n\n    if (angular.isDefined(fnIndex)) {\n      self.deferredFns.splice(fnIndex, 1);\n      return true;\n    }\n\n    return false;\n  };\n\n\n  /**\n   * @name $browser#defer.flush\n   *\n   * @description\n   * Flushes all pending requests and executes the defer callbacks.\n   *\n   * @param {number=} number of milliseconds to flush. See {@link #defer.now}\n   */\n  self.defer.flush = function(delay) {\n    var nextTime;\n\n    if (angular.isDefined(delay)) {\n      // A delay was passed so compute the next time\n      nextTime = self.defer.now + delay;\n    } else {\n      if (self.deferredFns.length) {\n        // No delay was passed so set the next time so that it clears the deferred queue\n        nextTime = self.deferredFns[self.deferredFns.length - 1].time;\n      } else {\n        // No delay passed, but there are no deferred tasks so flush - indicates an error!\n        throw new Error('No deferred tasks to be flushed');\n      }\n    }\n\n    while (self.deferredFns.length && self.deferredFns[0].time <= nextTime) {\n      // Increment the time and call the next deferred function\n      self.defer.now = self.deferredFns[0].time;\n      self.deferredFns.shift().fn();\n    }\n\n    // Ensure that the current time is correct\n    self.defer.now = nextTime;\n  };\n\n  self.$$baseHref = '/';\n  self.baseHref = function() {\n    return this.$$baseHref;\n  };\n};\nangular.mock.$Browser.prototype = {\n\n  /**\n   * @name $browser#poll\n   *\n   * @description\n   * run all fns in pollFns\n   */\n  poll: function poll() {\n    angular.forEach(this.pollFns, function(pollFn) {\n      pollFn();\n    });\n  },\n\n  url: function(url, replace, state) {\n    if (angular.isUndefined(state)) {\n      state = null;\n    }\n    if (url) {\n      this.$$url = url;\n      // Native pushState serializes & copies the object; simulate it.\n      this.$$state = angular.copy(state);\n      return this;\n    }\n\n    return this.$$url;\n  },\n\n  state: function() {\n    return this.$$state;\n  },\n\n  notifyWhenNoOutstandingRequests: function(fn) {\n    fn();\n  }\n};\n\n\n/**\n * @ngdoc provider\n * @name $exceptionHandlerProvider\n *\n * @description\n * Configures the mock implementation of {@link ng.$exceptionHandler} to rethrow or to log errors\n * passed to the `$exceptionHandler`.\n */\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n *\n * @description\n * Mock implementation of {@link ng.$exceptionHandler} that rethrows or logs errors passed\n * to it. See {@link ngMock.$exceptionHandlerProvider $exceptionHandlerProvider} for configuration\n * information.\n *\n *\n * ```js\n *   describe('$exceptionHandlerProvider', function() {\n *\n *     it('should capture log messages and exceptions', function() {\n *\n *       module(function($exceptionHandlerProvider) {\n *         $exceptionHandlerProvider.mode('log');\n *       });\n *\n *       inject(function($log, $exceptionHandler, $timeout) {\n *         $timeout(function() { $log.log(1); });\n *         $timeout(function() { $log.log(2); throw 'banana peel'; });\n *         $timeout(function() { $log.log(3); });\n *         expect($exceptionHandler.errors).toEqual([]);\n *         expect($log.assertEmpty());\n *         $timeout.flush();\n *         expect($exceptionHandler.errors).toEqual(['banana peel']);\n *         expect($log.log.logs).toEqual([[1], [2], [3]]);\n *       });\n *     });\n *   });\n * ```\n */\n\nangular.mock.$ExceptionHandlerProvider = function() {\n  var handler;\n\n  /**\n   * @ngdoc method\n   * @name $exceptionHandlerProvider#mode\n   *\n   * @description\n   * Sets the logging mode.\n   *\n   * @param {string} mode Mode of operation, defaults to `rethrow`.\n   *\n   *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log`\n   *     mode stores an array of errors in `$exceptionHandler.errors`, to allow later assertion of\n   *     them. See {@link ngMock.$log#assertEmpty assertEmpty()} and\n   *     {@link ngMock.$log#reset reset()}.\n   *   - `rethrow`: If any errors are passed to the handler in tests, it typically means that there\n   *     is a bug in the application or test, so this mock will make these tests fail. For any\n   *     implementations that expect exceptions to be thrown, the `rethrow` mode will also maintain\n   *     a log of thrown errors in `$exceptionHandler.errors`.\n   */\n  this.mode = function(mode) {\n\n    switch (mode) {\n      case 'log':\n      case 'rethrow':\n        var errors = [];\n        handler = function(e) {\n          if (arguments.length === 1) {\n            errors.push(e);\n          } else {\n            errors.push([].slice.call(arguments, 0));\n          }\n          if (mode === 'rethrow') {\n            throw e;\n          }\n        };\n        handler.errors = errors;\n        break;\n      default:\n        throw new Error('Unknown mode \\'' + mode + '\\', only \\'log\\'/\\'rethrow\\' modes are allowed!');\n    }\n  };\n\n  this.$get = function() {\n    return handler;\n  };\n\n  this.mode('rethrow');\n};\n\n\n/**\n * @ngdoc service\n * @name $log\n *\n * @description\n * Mock implementation of {@link ng.$log} that gathers all logged messages in arrays\n * (one array per logging level). These arrays are exposed as `logs` property of each of the\n * level-specific log function, e.g. for level `error` the array is exposed as `$log.error.logs`.\n *\n */\nangular.mock.$LogProvider = function() {\n  var debug = true;\n\n  function concat(array1, array2, index) {\n    return array1.concat(Array.prototype.slice.call(array2, index));\n  }\n\n  this.debugEnabled = function(flag) {\n    if (angular.isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = function() {\n    var $log = {\n      log: function() { $log.log.logs.push(concat([], arguments, 0)); },\n      warn: function() { $log.warn.logs.push(concat([], arguments, 0)); },\n      info: function() { $log.info.logs.push(concat([], arguments, 0)); },\n      error: function() { $log.error.logs.push(concat([], arguments, 0)); },\n      debug: function() {\n        if (debug) {\n          $log.debug.logs.push(concat([], arguments, 0));\n        }\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#reset\n     *\n     * @description\n     * Reset all of the logging arrays to empty.\n     */\n    $log.reset = function() {\n      /**\n       * @ngdoc property\n       * @name $log#log.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#log `log()`}.\n       *\n       * @example\n       * ```js\n       * $log.log('Some Log');\n       * var first = $log.log.logs.unshift();\n       * ```\n       */\n      $log.log.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#info.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#info `info()`}.\n       *\n       * @example\n       * ```js\n       * $log.info('Some Info');\n       * var first = $log.info.logs.unshift();\n       * ```\n       */\n      $log.info.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#warn.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#warn `warn()`}.\n       *\n       * @example\n       * ```js\n       * $log.warn('Some Warning');\n       * var first = $log.warn.logs.unshift();\n       * ```\n       */\n      $log.warn.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#error.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#error `error()`}.\n       *\n       * @example\n       * ```js\n       * $log.error('Some Error');\n       * var first = $log.error.logs.unshift();\n       * ```\n       */\n      $log.error.logs = [];\n        /**\n       * @ngdoc property\n       * @name $log#debug.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#debug `debug()`}.\n       *\n       * @example\n       * ```js\n       * $log.debug('Some Error');\n       * var first = $log.debug.logs.unshift();\n       * ```\n       */\n      $log.debug.logs = [];\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#assertEmpty\n     *\n     * @description\n     * Assert that all of the logging methods have no logged messages. If any messages are present,\n     * an exception is thrown.\n     */\n    $log.assertEmpty = function() {\n      var errors = [];\n      angular.forEach(['error', 'warn', 'info', 'log', 'debug'], function(logLevel) {\n        angular.forEach($log[logLevel].logs, function(log) {\n          angular.forEach(log, function(logItem) {\n            errors.push('MOCK $log (' + logLevel + '): ' + String(logItem) + '\\n' +\n                        (logItem.stack || ''));\n          });\n        });\n      });\n      if (errors.length) {\n        errors.unshift('Expected $log to be empty! Either a message was logged unexpectedly, or ' +\n          'an expected log message was not checked and removed:');\n        errors.push('');\n        throw new Error(errors.join('\\n---------\\n'));\n      }\n    };\n\n    $log.reset();\n    return $log;\n  };\n};\n\n\n/**\n * @ngdoc service\n * @name $interval\n *\n * @description\n * Mock implementation of the $interval service.\n *\n * Use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n * time.\n *\n * @param {function()} fn A function that should be called repeatedly.\n * @param {number} delay Number of milliseconds between each function call.\n * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n *   indefinitely.\n * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n * @param {...*=} Pass additional parameters to the executed function.\n * @returns {promise} A promise which will be notified on each iteration.\n */\nangular.mock.$IntervalProvider = function() {\n  this.$get = ['$browser', '$rootScope', '$q', '$$q',\n       function($browser,   $rootScope,   $q,   $$q) {\n    var repeatFns = [],\n        nextRepeatId = 0,\n        now = 0;\n\n    var $interval = function(fn, delay, count, invokeApply) {\n      var hasParams = arguments.length > 4,\n          args = hasParams ? Array.prototype.slice.call(arguments, 4) : [],\n          iteration = 0,\n          skipApply = (angular.isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = (angular.isDefined(count)) ? count : 0;\n      promise.then(null, null, (!hasParams) ? fn : function() {\n        fn.apply(null, args);\n      });\n\n      promise.$$intervalId = nextRepeatId;\n\n      function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          var fnIndex;\n          deferred.resolve(iteration);\n\n          angular.forEach(repeatFns, function(fn, index) {\n            if (fn.id === promise.$$intervalId) fnIndex = index;\n          });\n\n          if (angular.isDefined(fnIndex)) {\n            repeatFns.splice(fnIndex, 1);\n          }\n        }\n\n        if (skipApply) {\n          $browser.defer.flush();\n        } else {\n          $rootScope.$apply();\n        }\n      }\n\n      repeatFns.push({\n        nextTime:(now + delay),\n        delay: delay,\n        fn: tick,\n        id: nextRepeatId,\n        deferred: deferred\n      });\n      repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n\n      nextRepeatId++;\n      return promise;\n    };\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {promise} promise A promise from calling the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully cancelled.\n     */\n    $interval.cancel = function(promise) {\n      if (!promise) return false;\n      var fnIndex;\n\n      angular.forEach(repeatFns, function(fn, index) {\n        if (fn.id === promise.$$intervalId) fnIndex = index;\n      });\n\n      if (angular.isDefined(fnIndex)) {\n        repeatFns[fnIndex].deferred.reject('canceled');\n        repeatFns.splice(fnIndex, 1);\n        return true;\n      }\n\n      return false;\n    };\n\n    /**\n     * @ngdoc method\n     * @name $interval#flush\n     * @description\n     *\n     * Runs interval tasks scheduled to be run in the next `millis` milliseconds.\n     *\n     * @param {number=} millis maximum timeout amount to flush up until.\n     *\n     * @return {number} The amount of time moved forward.\n     */\n    $interval.flush = function(millis) {\n      now += millis;\n      while (repeatFns.length && repeatFns[0].nextTime <= now) {\n        var task = repeatFns[0];\n        task.fn();\n        task.nextTime += task.delay;\n        repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n      }\n      return millis;\n    };\n\n    return $interval;\n  }];\n};\n\n\nfunction jsonStringToDate(string) {\n  // The R_ISO8061_STR regex is never going to fit into the 100 char limit!\n  // eslit-disable-next-line max-len\n  var R_ISO8061_STR = /^(-?\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d{3}))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d)))?$/;\n\n  var match;\n  if ((match = string.match(R_ISO8061_STR))) {\n    var date = new Date(0),\n        tzHour = 0,\n        tzMin  = 0;\n    if (match[9]) {\n      tzHour = toInt(match[9] + match[10]);\n      tzMin = toInt(match[9] + match[11]);\n    }\n    date.setUTCFullYear(toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n    date.setUTCHours(toInt(match[4] || 0) - tzHour,\n                     toInt(match[5] || 0) - tzMin,\n                     toInt(match[6] || 0),\n                     toInt(match[7] || 0));\n    return date;\n  }\n  return string;\n}\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nfunction padNumberInMock(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while (num.length < digits) num = '0' + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\n/**\n * @ngdoc type\n * @name angular.mock.TzDate\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.\n *\n * Mock of the Date type which has its timezone specified via constructor arg.\n *\n * The main purpose is to create Date-like instances with timezone fixed to the specified timezone\n * offset, so that we can test code that depends on local timezone settings without dependency on\n * the time zone settings of the machine where the code is running.\n *\n * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)\n * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*\n *\n * @example\n * !!!! WARNING !!!!!\n * This is not a complete Date object so only methods that were implemented can be called safely.\n * To make matters worse, TzDate instances inherit stuff from Date via a prototype.\n *\n * We do our best to intercept calls to \"unimplemented\" methods, but since the list of methods is\n * incomplete we might be missing some non-standard methods. This can result in errors like:\n * \"Date.prototype.foo called on incompatible Object\".\n *\n * ```js\n * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');\n * newYearInBratislava.getTimezoneOffset() => -60;\n * newYearInBratislava.getFullYear() => 2010;\n * newYearInBratislava.getMonth() => 0;\n * newYearInBratislava.getDate() => 1;\n * newYearInBratislava.getHours() => 0;\n * newYearInBratislava.getMinutes() => 0;\n * newYearInBratislava.getSeconds() => 0;\n * ```\n *\n */\nangular.mock.TzDate = function(offset, timestamp) {\n  var self = new Date(0);\n  if (angular.isString(timestamp)) {\n    var tsStr = timestamp;\n\n    self.origDate = jsonStringToDate(timestamp);\n\n    timestamp = self.origDate.getTime();\n    if (isNaN(timestamp)) {\n      // eslint-disable-next-line no-throw-literal\n      throw {\n        name: 'Illegal Argument',\n        message: 'Arg \\'' + tsStr + '\\' passed into TzDate constructor is not a valid date string'\n      };\n    }\n  } else {\n    self.origDate = new Date(timestamp);\n  }\n\n  var localOffset = new Date(timestamp).getTimezoneOffset();\n  self.offsetDiff = localOffset * 60 * 1000 - offset * 1000 * 60 * 60;\n  self.date = new Date(timestamp + self.offsetDiff);\n\n  self.getTime = function() {\n    return self.date.getTime() - self.offsetDiff;\n  };\n\n  self.toLocaleDateString = function() {\n    return self.date.toLocaleDateString();\n  };\n\n  self.getFullYear = function() {\n    return self.date.getFullYear();\n  };\n\n  self.getMonth = function() {\n    return self.date.getMonth();\n  };\n\n  self.getDate = function() {\n    return self.date.getDate();\n  };\n\n  self.getHours = function() {\n    return self.date.getHours();\n  };\n\n  self.getMinutes = function() {\n    return self.date.getMinutes();\n  };\n\n  self.getSeconds = function() {\n    return self.date.getSeconds();\n  };\n\n  self.getMilliseconds = function() {\n    return self.date.getMilliseconds();\n  };\n\n  self.getTimezoneOffset = function() {\n    return offset * 60;\n  };\n\n  self.getUTCFullYear = function() {\n    return self.origDate.getUTCFullYear();\n  };\n\n  self.getUTCMonth = function() {\n    return self.origDate.getUTCMonth();\n  };\n\n  self.getUTCDate = function() {\n    return self.origDate.getUTCDate();\n  };\n\n  self.getUTCHours = function() {\n    return self.origDate.getUTCHours();\n  };\n\n  self.getUTCMinutes = function() {\n    return self.origDate.getUTCMinutes();\n  };\n\n  self.getUTCSeconds = function() {\n    return self.origDate.getUTCSeconds();\n  };\n\n  self.getUTCMilliseconds = function() {\n    return self.origDate.getUTCMilliseconds();\n  };\n\n  self.getDay = function() {\n    return self.date.getDay();\n  };\n\n  // provide this method only on browsers that already have it\n  if (self.toISOString) {\n    self.toISOString = function() {\n      return padNumberInMock(self.origDate.getUTCFullYear(), 4) + '-' +\n            padNumberInMock(self.origDate.getUTCMonth() + 1, 2) + '-' +\n            padNumberInMock(self.origDate.getUTCDate(), 2) + 'T' +\n            padNumberInMock(self.origDate.getUTCHours(), 2) + ':' +\n            padNumberInMock(self.origDate.getUTCMinutes(), 2) + ':' +\n            padNumberInMock(self.origDate.getUTCSeconds(), 2) + '.' +\n            padNumberInMock(self.origDate.getUTCMilliseconds(), 3) + 'Z';\n    };\n  }\n\n  //hide all methods not implemented in this mock that the Date prototype exposes\n  var unimplementedMethods = ['getUTCDay',\n      'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',\n      'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',\n      'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',\n      'setYear', 'toDateString', 'toGMTString', 'toJSON', 'toLocaleFormat', 'toLocaleString',\n      'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];\n\n  angular.forEach(unimplementedMethods, function(methodName) {\n    self[methodName] = function() {\n      throw new Error('Method \\'' + methodName + '\\' is not implemented in the TzDate mock');\n    };\n  });\n\n  return self;\n};\n\n//make \"tzDateInstance instanceof Date\" return true\nangular.mock.TzDate.prototype = Date.prototype;\n\n\n/**\n * @ngdoc service\n * @name $animate\n *\n * @description\n * Mock implementation of the {@link ng.$animate `$animate`} service. Exposes two additional methods\n * for testing animations.\n *\n * You need to require the `ngAnimateMock` module in your test suite for instance `beforeEach(module('ngAnimateMock'))`\n */\nangular.mock.animate = angular.module('ngAnimateMock', ['ng'])\n\n  .config(['$provide', function($provide) {\n\n    $provide.factory('$$forceReflow', function() {\n      function reflowFn() {\n        reflowFn.totalReflows++;\n      }\n      reflowFn.totalReflows = 0;\n      return reflowFn;\n    });\n\n    $provide.factory('$$animateAsyncRun', function() {\n      var queue = [];\n      var queueFn = function() {\n        return function(fn) {\n          queue.push(fn);\n        };\n      };\n      queueFn.flush = function() {\n        if (queue.length === 0) return false;\n\n        for (var i = 0; i < queue.length; i++) {\n          queue[i]();\n        }\n        queue = [];\n\n        return true;\n      };\n      return queueFn;\n    });\n\n    $provide.decorator('$$animateJs', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateJsConstructor = function() {\n        var animator = $delegate.apply($delegate, arguments);\n        // If no javascript animation is found, animator is undefined\n        if (animator) {\n          runners.push(animator);\n        }\n        return animator;\n      };\n\n      animateJsConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateJsConstructor;\n    }]);\n\n    $provide.decorator('$animateCss', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateCssConstructor = function(element, options) {\n        var animator = $delegate(element, options);\n        runners.push(animator);\n        return animator;\n      };\n\n      animateCssConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateCssConstructor;\n    }]);\n\n    $provide.decorator('$animate', ['$delegate', '$timeout', '$browser', '$$rAF', '$animateCss', '$$animateJs',\n                                    '$$forceReflow', '$$animateAsyncRun', '$rootScope',\n                            function($delegate,   $timeout,   $browser,   $$rAF,   $animateCss,   $$animateJs,\n                                     $$forceReflow,   $$animateAsyncRun,  $rootScope) {\n      var animate = {\n        queue: [],\n        cancel: $delegate.cancel,\n        on: $delegate.on,\n        off: $delegate.off,\n        pin: $delegate.pin,\n        get reflows() {\n          return $$forceReflow.totalReflows;\n        },\n        enabled: $delegate.enabled,\n        /**\n         * @ngdoc method\n         * @name $animate#closeAndFlush\n         * @description\n         *\n         * This method will close all pending animations (both {@link ngAnimate#javascript-based-animations Javascript}\n         * and {@link ngAnimate.$animateCss CSS}) and it will also flush any remaining animation frames and/or callbacks.\n         */\n        closeAndFlush: function() {\n          // we allow the flush command to swallow the errors\n          // because depending on whether CSS or JS animations are\n          // used, there may not be a RAF flush. The primary flush\n          // at the end of this function must throw an exception\n          // because it will track if there were pending animations\n          this.flush(true);\n          $animateCss.$closeAndFlush();\n          $$animateJs.$closeAndFlush();\n          this.flush();\n        },\n        /**\n         * @ngdoc method\n         * @name $animate#flush\n         * @description\n         *\n         * This method is used to flush the pending callbacks and animation frames to either start\n         * an animation or conclude an animation. Note that this will not actually close an\n         * actively running animation (see {@link ngMock.$animate#closeAndFlush `closeAndFlush()`} for that).\n         */\n        flush: function(hideErrors) {\n          $rootScope.$digest();\n\n          var doNextRun, somethingFlushed = false;\n          do {\n            doNextRun = false;\n\n            if ($$rAF.queue.length) {\n              $$rAF.flush();\n              doNextRun = somethingFlushed = true;\n            }\n\n            if ($$animateAsyncRun.flush()) {\n              doNextRun = somethingFlushed = true;\n            }\n          } while (doNextRun);\n\n          if (!somethingFlushed && !hideErrors) {\n            throw new Error('No pending animations ready to be closed or flushed');\n          }\n\n          $rootScope.$digest();\n        }\n      };\n\n      angular.forEach(\n        ['animate','enter','leave','move','addClass','removeClass','setClass'], function(method) {\n        animate[method] = function() {\n          animate.queue.push({\n            event: method,\n            element: arguments[0],\n            options: arguments[arguments.length - 1],\n            args: arguments\n          });\n          return $delegate[method].apply($delegate, arguments);\n        };\n      });\n\n      return animate;\n    }]);\n\n  }]);\n\n\n/**\n * @ngdoc function\n * @name angular.mock.dump\n * @description\n *\n * *NOTE*: This is not an injectable instance, just a globally available function.\n *\n * Method for serializing common angular objects (scope, elements, etc..) into strings.\n * It is useful for logging objects to the console when debugging.\n *\n * @param {*} object - any object to turn into string.\n * @return {string} a serialized string of the argument\n */\nangular.mock.dump = function(object) {\n  return serialize(object);\n\n  function serialize(object) {\n    var out;\n\n    if (angular.isElement(object)) {\n      object = angular.element(object);\n      out = angular.element('<div></div>');\n      angular.forEach(object, function(element) {\n        out.append(angular.element(element).clone());\n      });\n      out = out.html();\n    } else if (angular.isArray(object)) {\n      out = [];\n      angular.forEach(object, function(o) {\n        out.push(serialize(o));\n      });\n      out = '[ ' + out.join(', ') + ' ]';\n    } else if (angular.isObject(object)) {\n      if (angular.isFunction(object.$eval) && angular.isFunction(object.$apply)) {\n        out = serializeScope(object);\n      } else if (object instanceof Error) {\n        out = object.stack || ('' + object.name + ': ' + object.message);\n      } else {\n        // TODO(i): this prevents methods being logged,\n        // we should have a better way to serialize objects\n        out = angular.toJson(object, true);\n      }\n    } else {\n      out = String(object);\n    }\n\n    return out;\n  }\n\n  function serializeScope(scope, offset) {\n    offset = offset ||  '  ';\n    var log = [offset + 'Scope(' + scope.$id + '): {'];\n    for (var key in scope) {\n      if (Object.prototype.hasOwnProperty.call(scope, key) && !key.match(/^(\\$|this)/)) {\n        log.push('  ' + key + ': ' + angular.toJson(scope[key]));\n      }\n    }\n    var child = scope.$$childHead;\n    while (child) {\n      log.push(serializeScope(child, offset + '  '));\n      child = child.$$nextSibling;\n    }\n    log.push('}');\n    return log.join('\\n' + offset);\n  }\n};\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @description\n * Fake HTTP backend implementation suitable for unit testing applications that use the\n * {@link ng.$http $http service}.\n *\n * <div class=\"alert alert-info\">\n * **Note**: For fake HTTP backend implementation suitable for end-to-end testing or backend-less\n * development please see {@link ngMockE2E.$httpBackend e2e $httpBackend mock}.\n * </div>\n *\n * During unit testing, we want our unit tests to run quickly and have no external dependencies so\n * we don’t want to send [XHR](https://developer.mozilla.org/en/xmlhttprequest) or\n * [JSONP](http://en.wikipedia.org/wiki/JSONP) requests to a real server. All we really need is\n * to verify whether a certain request has been sent or not, or alternatively just let the\n * application make requests, respond with pre-trained responses and assert that the end result is\n * what we expect it to be.\n *\n * This mock implementation can be used to respond with static or dynamic responses via the\n * `expect` and `when` apis and their shortcuts (`expectGET`, `whenPOST`, etc).\n *\n * When an Angular application needs some data from a server, it calls the $http service, which\n * sends the request to a real server using $httpBackend service. With dependency injection, it is\n * easy to inject $httpBackend mock (which has the same API as $httpBackend) and use it to verify\n * the requests and respond with some testing data without sending a request to a real server.\n *\n * There are two ways to specify what test data should be returned as http responses by the mock\n * backend when the code under test makes http requests:\n *\n * - `$httpBackend.expect` - specifies a request expectation\n * - `$httpBackend.when` - specifies a backend definition\n *\n *\n * ## Request Expectations vs Backend Definitions\n *\n * Request expectations provide a way to make assertions about requests made by the application and\n * to define responses for those requests. The test will fail if the expected requests are not made\n * or they are made in the wrong order.\n *\n * Backend definitions allow you to define a fake backend for your application which doesn't assert\n * if a particular request was made or not, it just returns a trained response if a request is made.\n * The test will pass whether or not the request gets made during testing.\n *\n *\n * <table class=\"table\">\n *   <tr><th width=\"220px\"></th><th>Request expectations</th><th>Backend definitions</th></tr>\n *   <tr>\n *     <th>Syntax</th>\n *     <td>.expect(...).respond(...)</td>\n *     <td>.when(...).respond(...)</td>\n *   </tr>\n *   <tr>\n *     <th>Typical usage</th>\n *     <td>strict unit tests</td>\n *     <td>loose (black-box) unit testing</td>\n *   </tr>\n *   <tr>\n *     <th>Fulfills multiple requests</th>\n *     <td>NO</td>\n *     <td>YES</td>\n *   </tr>\n *   <tr>\n *     <th>Order of requests matters</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Request required</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Response required</th>\n *     <td>optional (see below)</td>\n *     <td>YES</td>\n *   </tr>\n * </table>\n *\n * In cases where both backend definitions and request expectations are specified during unit\n * testing, the request expectations are evaluated first.\n *\n * If a request expectation has no response specified, the algorithm will search your backend\n * definitions for an appropriate response.\n *\n * If a request didn't match any expectation or if the expectation doesn't have the response\n * defined, the backend definitions are evaluated in sequential order to see if any of them match\n * the request. The response from the first matched definition is returned.\n *\n *\n * ## Flushing HTTP requests\n *\n * The $httpBackend used in production always responds to requests asynchronously. If we preserved\n * this behavior in unit testing, we'd have to create async unit tests, which are hard to write,\n * to follow and to maintain. But neither can the testing mock respond synchronously; that would\n * change the execution of the code under test. For this reason, the mock $httpBackend has a\n * `flush()` method, which allows the test to explicitly flush pending requests. This preserves\n * the async api of the backend, while allowing the test to execute synchronously.\n *\n *\n * ## Unit testing with mock $httpBackend\n * The following code shows how to setup and use the mock backend when unit testing a controller.\n * First we create the controller under test:\n *\n  ```js\n  // The module code\n  angular\n    .module('MyApp', [])\n    .controller('MyController', MyController);\n\n  // The controller code\n  function MyController($scope, $http) {\n    var authToken;\n\n    $http.get('/auth.py').then(function(response) {\n      authToken = response.headers('A-Token');\n      $scope.user = response.data;\n    });\n\n    $scope.saveMessage = function(message) {\n      var headers = { 'Authorization': authToken };\n      $scope.status = 'Saving...';\n\n      $http.post('/add-msg.py', message, { headers: headers } ).then(function(response) {\n        $scope.status = '';\n      })['catch'](function() {\n        $scope.status = 'Failed...';\n      });\n    };\n  }\n  ```\n *\n * Now we setup the mock backend and create the test specs:\n *\n  ```js\n    // testing controller\n    describe('MyController', function() {\n       var $httpBackend, $rootScope, createController, authRequestHandler;\n\n       // Set up the module\n       beforeEach(module('MyApp'));\n\n       beforeEach(inject(function($injector) {\n         // Set up the mock http service responses\n         $httpBackend = $injector.get('$httpBackend');\n         // backend definition common for all tests\n         authRequestHandler = $httpBackend.when('GET', '/auth.py')\n                                .respond({userId: 'userX'}, {'A-Token': 'xxx'});\n\n         // Get hold of a scope (i.e. the root scope)\n         $rootScope = $injector.get('$rootScope');\n         // The $controller service is used to create instances of controllers\n         var $controller = $injector.get('$controller');\n\n         createController = function() {\n           return $controller('MyController', {'$scope' : $rootScope });\n         };\n       }));\n\n\n       afterEach(function() {\n         $httpBackend.verifyNoOutstandingExpectation();\n         $httpBackend.verifyNoOutstandingRequest();\n       });\n\n\n       it('should fetch authentication token', function() {\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n       });\n\n\n       it('should fail authentication', function() {\n\n         // Notice how you can change the response even after it was set\n         authRequestHandler.respond(401, '');\n\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('Failed...');\n       });\n\n\n       it('should send msg to server', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         // now you don’t care about the authentication, but\n         // the controller will still send the request and\n         // $httpBackend will respond without you having to\n         // specify the expectation and response for this request\n\n         $httpBackend.expectPOST('/add-msg.py', 'message content').respond(201, '');\n         $rootScope.saveMessage('message content');\n         expect($rootScope.status).toBe('Saving...');\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('');\n       });\n\n\n       it('should send auth header', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         $httpBackend.expectPOST('/add-msg.py', undefined, function(headers) {\n           // check if the header was sent, if it wasn't the expectation won't\n           // match the request and the test will fail\n           return headers['Authorization'] === 'xxx';\n         }).respond(201, '');\n\n         $rootScope.saveMessage('whatever');\n         $httpBackend.flush();\n       });\n    });\n  ```\n *\n * ## Dynamic responses\n *\n * You define a response to a request by chaining a call to `respond()` onto a definition or expectation.\n * If you provide a **callback** as the first parameter to `respond(callback)` then you can dynamically generate\n * a response based on the properties of the request.\n *\n * The `callback` function should be of the form `function(method, url, data, headers, params)`.\n *\n * ### Query parameters\n *\n * By default, query parameters on request URLs are parsed into the `params` object. So a request URL\n * of `/list?q=searchstr&orderby=-name` would set `params` to be `{q: 'searchstr', orderby: '-name'}`.\n *\n * ### Regex parameter matching\n *\n * If an expectation or definition uses a **regex** to match the URL, you can provide an array of **keys** via a\n * `params` argument. The index of each **key** in the array will match the index of a **group** in the\n * **regex**.\n *\n * The `params` object in the **callback** will now have properties with these keys, which hold the value of the\n * corresponding **group** in the **regex**.\n *\n * This also applies to the `when` and `expect` shortcut methods.\n *\n *\n * ```js\n *   $httpBackend.expect('GET', /\\/user\\/(.+)/, undefined, undefined, ['id'])\n *     .respond(function(method, url, data, headers, params) {\n *       // for requested url of '/user/1234' params is {id: '1234'}\n *     });\n *\n *   $httpBackend.whenPATCH(/\\/user\\/(.+)\\/article\\/(.+)/, undefined, undefined, ['user', 'article'])\n *     .respond(function(method, url, data, headers, params) {\n *       // for url of '/user/1234/article/567' params is {user: '1234', article: '567'}\n *     });\n * ```\n *\n * ## Matching route requests\n *\n * For extra convenience, `whenRoute` and `expectRoute` shortcuts are available. These methods offer colon\n * delimited matching of the url path, ignoring the query string. This allows declarations\n * similar to how application routes are configured with `$routeProvider`. Because these methods convert\n * the definition url to regex, declaration order is important. Combined with query parameter parsing,\n * the following is possible:\n *\n  ```js\n    $httpBackend.whenRoute('GET', '/users/:id')\n      .respond(function(method, url, data, headers, params) {\n        return [200, MockUserList[Number(params.id)]];\n      });\n\n    $httpBackend.whenRoute('GET', '/users')\n      .respond(function(method, url, data, headers, params) {\n        var userList = angular.copy(MockUserList),\n          defaultSort = 'lastName',\n          count, pages, isPrevious, isNext;\n\n        // paged api response '/v1/users?page=2'\n        params.page = Number(params.page) || 1;\n\n        // query for last names '/v1/users?q=Archer'\n        if (params.q) {\n          userList = $filter('filter')({lastName: params.q});\n        }\n\n        pages = Math.ceil(userList.length / pagingLength);\n        isPrevious = params.page > 1;\n        isNext = params.page < pages;\n\n        return [200, {\n          count:    userList.length,\n          previous: isPrevious,\n          next:     isNext,\n          // sort field -> '/v1/users?sortBy=firstName'\n          results:  $filter('orderBy')(userList, params.sortBy || defaultSort)\n                      .splice((params.page - 1) * pagingLength, pagingLength)\n        }];\n      });\n  ```\n */\nangular.mock.$HttpBackendProvider = function() {\n  this.$get = ['$rootScope', '$timeout', createHttpBackendMock];\n};\n\n/**\n * General factory function for $httpBackend mock.\n * Returns instance for unit testing (when no arguments specified):\n *   - passing through is disabled\n *   - auto flushing is disabled\n *\n * Returns instance for e2e testing (when `$delegate` and `$browser` specified):\n *   - passing through (delegating request to real backend) is enabled\n *   - auto flushing is enabled\n *\n * @param {Object=} $delegate Real $httpBackend instance (allow passing through if specified)\n * @param {Object=} $browser Auto-flushing enabled if specified\n * @return {Object} Instance of $httpBackend mock\n */\nfunction createHttpBackendMock($rootScope, $timeout, $delegate, $browser) {\n  var definitions = [],\n      expectations = [],\n      responses = [],\n      responsesPush = angular.bind(responses, responses.push),\n      copy = angular.copy;\n\n  function createResponse(status, data, headers, statusText) {\n    if (angular.isFunction(status)) return status;\n\n    return function() {\n      return angular.isNumber(status)\n          ? [status, data, headers, statusText]\n          : [200, status, data, headers];\n    };\n  }\n\n  // TODO(vojta): change params to: method, url, data, headers, callback\n  function $httpBackend(method, url, data, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {\n\n    var xhr = new MockXhr(),\n        expectation = expectations[0],\n        wasExpected = false;\n\n    xhr.$$events = eventHandlers;\n    xhr.upload.$$events = uploadEventHandlers;\n\n    function prettyPrint(data) {\n      return (angular.isString(data) || angular.isFunction(data) || data instanceof RegExp)\n          ? data\n          : angular.toJson(data);\n    }\n\n    function wrapResponse(wrapped) {\n      if (!$browser && timeout) {\n        if (timeout.then) {\n          timeout.then(handleTimeout);\n        } else {\n          $timeout(handleTimeout, timeout);\n        }\n      }\n\n      return handleResponse;\n\n      function handleResponse() {\n        var response = wrapped.response(method, url, data, headers, wrapped.params(url));\n        xhr.$$respHeaders = response[2];\n        callback(copy(response[0]), copy(response[1]), xhr.getAllResponseHeaders(),\n                 copy(response[3] || ''));\n      }\n\n      function handleTimeout() {\n        for (var i = 0, ii = responses.length; i < ii; i++) {\n          if (responses[i] === handleResponse) {\n            responses.splice(i, 1);\n            callback(-1, undefined, '');\n            break;\n          }\n        }\n      }\n    }\n\n    if (expectation && expectation.match(method, url)) {\n      if (!expectation.matchData(data)) {\n        throw new Error('Expected ' + expectation + ' with different data\\n' +\n            'EXPECTED: ' + prettyPrint(expectation.data) + '\\nGOT:      ' + data);\n      }\n\n      if (!expectation.matchHeaders(headers)) {\n        throw new Error('Expected ' + expectation + ' with different headers\\n' +\n                        'EXPECTED: ' + prettyPrint(expectation.headers) + '\\nGOT:      ' +\n                        prettyPrint(headers));\n      }\n\n      expectations.shift();\n\n      if (expectation.response) {\n        responses.push(wrapResponse(expectation));\n        return;\n      }\n      wasExpected = true;\n    }\n\n    var i = -1, definition;\n    while ((definition = definitions[++i])) {\n      if (definition.match(method, url, data, headers || {})) {\n        if (definition.response) {\n          // if $browser specified, we do auto flush all requests\n          ($browser ? $browser.defer : responsesPush)(wrapResponse(definition));\n        } else if (definition.passThrough) {\n          $delegate(method, url, data, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers);\n        } else throw new Error('No response defined !');\n        return;\n      }\n    }\n    throw wasExpected ?\n        new Error('No response defined !') :\n        new Error('Unexpected request: ' + method + ' ' + url + '\\n' +\n                  (expectation ? 'Expected ' + expectation : 'No more request expected'));\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#when\n   * @description\n   * Creates a new backend definition.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   *\n   *  - respond –\n   *      ```js\n   *      {function([status,] data[, headers, statusText])\n   *      | function(function(method, url, data, headers, params)}\n   *      ```\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (Array|Object|string),\n   *    response headers (Object), and the text for the status (string). The respond method returns\n   *    the `requestHandler` object for possible overrides.\n   */\n  $httpBackend.when = function(method, url, data, headers, keys) {\n    var definition = new MockHttpExpectation(method, url, data, headers, keys),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            definition.passThrough = undefined;\n            definition.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    if ($browser) {\n      chain.passThrough = function() {\n        definition.response = undefined;\n        definition.passThrough = true;\n        return chain;\n      };\n    }\n\n    definitions.push(definition);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenGET\n   * @description\n   * Creates a new backend definition for GET requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenHEAD\n   * @description\n   * Creates a new backend definition for HEAD requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenDELETE\n   * @description\n   * Creates a new backend definition for DELETE requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPOST\n   * @description\n   * Creates a new backend definition for POST requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPUT\n   * @description\n   * Creates a new backend definition for PUT requests.  For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenJSONP\n   * @description\n   * Creates a new backend definition for JSONP requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n  createShortMethods('when');\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenRoute\n   * @description\n   * Creates a new backend definition that compares only with the requested route.\n   *\n   * @param {string} method HTTP method.\n   * @param {string} url HTTP url string that supports colon param matching.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #when for more info.\n   */\n  $httpBackend.whenRoute = function(method, url) {\n    var pathObj = parseRoute(url);\n    return $httpBackend.when(method, pathObj.regexp, undefined, undefined, pathObj.keys);\n  };\n\n  function parseRoute(url) {\n    var ret = {\n      regexp: url\n    },\n    keys = ret.keys = [];\n\n    if (!url || !angular.isString(url)) return ret;\n\n    url = url\n      .replace(/([().])/g, '\\\\$1')\n      .replace(/(\\/)?:(\\w+)([?*])?/g, function(_, slash, key, option) {\n        var optional = option === '?' ? option : null;\n        var star = option === '*' ? option : null;\n        keys.push({ name: key, optional: !!optional });\n        slash = slash || '';\n        return ''\n          + (optional ? '' : slash)\n          + '(?:'\n          + (optional ? slash : '')\n          + (star && '(.+?)' || '([^/]+)')\n          + (optional || '')\n          + ')'\n          + (optional || '');\n      })\n      .replace(/([/$*])/g, '\\\\$1');\n\n    ret.regexp = new RegExp('^' + url, 'i');\n    return ret;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expect\n   * @description\n   * Creates a new request expectation.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *  request is handled. You can save this object for later use and invoke `respond` again in\n   *  order to change how a matched request is handled.\n   *\n   *  - respond –\n   *    ```\n   *    { function([status,] data[, headers, statusText])\n   *    | function(function(method, url, data, headers, params)}\n   *    ```\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (Array|Object|string),\n   *    response headers (Object), and the text for the status (string). The respond method returns\n   *    the `requestHandler` object for possible overrides.\n   */\n  $httpBackend.expect = function(method, url, data, headers, keys) {\n    var expectation = new MockHttpExpectation(method, url, data, headers, keys),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            expectation.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    expectations.push(expectation);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectGET\n   * @description\n   * Creates a new request expectation for GET requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #expect for more info.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectHEAD\n   * @description\n   * Creates a new request expectation for HEAD requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectDELETE\n   * @description\n   * Creates a new request expectation for DELETE requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPOST\n   * @description\n   * Creates a new request expectation for POST requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPUT\n   * @description\n   * Creates a new request expectation for PUT requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPATCH\n   * @description\n   * Creates a new request expectation for PATCH requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectJSONP\n   * @description\n   * Creates a new request expectation for JSONP requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)} url HTTP url or function that receives an url\n   *   and returns true if the url matches the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n  createShortMethods('expect');\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectRoute\n   * @description\n   * Creates a new request expectation that compares only with the requested route.\n   *\n   * @param {string} method HTTP method.\n   * @param {string} url HTTP url string that supports colon param matching.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #expect for more info.\n   */\n  $httpBackend.expectRoute = function(method, url) {\n    var pathObj = parseRoute(url);\n    return $httpBackend.expect(method, pathObj.regexp, undefined, undefined, pathObj.keys);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#flush\n   * @description\n   * Flushes pending requests using the trained responses. Requests are flushed in the order they\n   * were made, but it is also possible to skip one or more requests (for example to have them\n   * flushed later). This is useful for simulating scenarios where responses arrive from the server\n   * in any order.\n   *\n   * If there are no pending requests to flush when the method is called, an exception is thrown (as\n   * this is typically a sign of programming error).\n   *\n   * @param {number=} count - Number of responses to flush. If undefined/null, all pending requests\n   *     (starting after `skip`) will be flushed.\n   * @param {number=} [skip=0] - Number of pending requests to skip. For example, a value of `5`\n   *     would skip the first 5 pending requests and start flushing from the 6th onwards.\n   */\n  $httpBackend.flush = function(count, skip, digest) {\n    if (digest !== false) $rootScope.$digest();\n\n    skip = skip || 0;\n    if (skip >= responses.length) throw new Error('No pending request to flush !');\n\n    if (angular.isDefined(count) && count !== null) {\n      while (count--) {\n        var part = responses.splice(skip, 1);\n        if (!part.length) throw new Error('No more pending request to flush !');\n        part[0]();\n      }\n    } else {\n      while (responses.length > skip) {\n        responses.splice(skip, 1)[0]();\n      }\n    }\n    $httpBackend.verifyNoOutstandingExpectation(digest);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingExpectation\n   * @description\n   * Verifies that all of the requests defined via the `expect` api were made. If any of the\n   * requests were not made, verifyNoOutstandingExpectation throws an exception.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingExpectation);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingExpectation = function(digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (expectations.length) {\n      throw new Error('Unsatisfied requests: ' + expectations.join(', '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingRequest\n   * @description\n   * Verifies that there are no outstanding requests that need to be flushed.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingRequest);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingRequest = function() {\n    if (responses.length) {\n      throw new Error('Unflushed requests: ' + responses.length);\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#resetExpectations\n   * @description\n   * Resets all request expectations, but preserves all backend definitions. Typically, you would\n   * call resetExpectations during a multiple-phase test when you want to reuse the same instance of\n   * $httpBackend mock.\n   */\n  $httpBackend.resetExpectations = function() {\n    expectations.length = 0;\n    responses.length = 0;\n  };\n\n  return $httpBackend;\n\n\n  function createShortMethods(prefix) {\n    angular.forEach(['GET', 'DELETE', 'JSONP', 'HEAD'], function(method) {\n     $httpBackend[prefix + method] = function(url, headers, keys) {\n       return $httpBackend[prefix](method, url, undefined, headers, keys);\n     };\n    });\n\n    angular.forEach(['PUT', 'POST', 'PATCH'], function(method) {\n      $httpBackend[prefix + method] = function(url, data, headers, keys) {\n        return $httpBackend[prefix](method, url, data, headers, keys);\n      };\n    });\n  }\n}\n\nfunction MockHttpExpectation(method, url, data, headers, keys) {\n\n  function getUrlParams(u) {\n    var params = u.slice(u.indexOf('?') + 1).split('&');\n    return params.sort();\n  }\n\n  function compareUrl(u) {\n    return (url.slice(0, url.indexOf('?')) === u.slice(0, u.indexOf('?')) &&\n      getUrlParams(url).join() === getUrlParams(u).join());\n  }\n\n  this.data = data;\n  this.headers = headers;\n\n  this.match = function(m, u, d, h) {\n    if (method !== m) return false;\n    if (!this.matchUrl(u)) return false;\n    if (angular.isDefined(d) && !this.matchData(d)) return false;\n    if (angular.isDefined(h) && !this.matchHeaders(h)) return false;\n    return true;\n  };\n\n  this.matchUrl = function(u) {\n    if (!url) return true;\n    if (angular.isFunction(url.test)) return url.test(u);\n    if (angular.isFunction(url)) return url(u);\n    return (url === u || compareUrl(u));\n  };\n\n  this.matchHeaders = function(h) {\n    if (angular.isUndefined(headers)) return true;\n    if (angular.isFunction(headers)) return headers(h);\n    return angular.equals(headers, h);\n  };\n\n  this.matchData = function(d) {\n    if (angular.isUndefined(data)) return true;\n    if (data && angular.isFunction(data.test)) return data.test(d);\n    if (data && angular.isFunction(data)) return data(d);\n    if (data && !angular.isString(data)) {\n      return angular.equals(angular.fromJson(angular.toJson(data)), angular.fromJson(d));\n    }\n    // eslint-disable-next-line eqeqeq\n    return data == d;\n  };\n\n  this.toString = function() {\n    return method + ' ' + url;\n  };\n\n  this.params = function(u) {\n    return angular.extend(parseQuery(), pathParams());\n\n    function pathParams() {\n      var keyObj = {};\n      if (!url || !angular.isFunction(url.test) || !keys || keys.length === 0) return keyObj;\n\n      var m = url.exec(u);\n      if (!m) return keyObj;\n      for (var i = 1, len = m.length; i < len; ++i) {\n        var key = keys[i - 1];\n        var val = m[i];\n        if (key && val) {\n          keyObj[key.name || key] = val;\n        }\n      }\n\n      return keyObj;\n    }\n\n    function parseQuery() {\n      var obj = {}, key_value, key,\n          queryStr = u.indexOf('?') > -1\n          ? u.substring(u.indexOf('?') + 1)\n          : '';\n\n      angular.forEach(queryStr.split('&'), function(keyValue) {\n        if (keyValue) {\n          key_value = keyValue.replace(/\\+/g,'%20').split('=');\n          key = tryDecodeURIComponent(key_value[0]);\n          if (angular.isDefined(key)) {\n            var val = angular.isDefined(key_value[1]) ? tryDecodeURIComponent(key_value[1]) : true;\n            if (!hasOwnProperty.call(obj, key)) {\n              obj[key] = val;\n            } else if (angular.isArray(obj[key])) {\n              obj[key].push(val);\n            } else {\n              obj[key] = [obj[key],val];\n            }\n          }\n        }\n      });\n      return obj;\n    }\n    function tryDecodeURIComponent(value) {\n      try {\n        return decodeURIComponent(value);\n      } catch (e) {\n        // Ignore any invalid uri component\n      }\n    }\n  };\n}\n\nfunction createMockXhr() {\n  return new MockXhr();\n}\n\nfunction MockXhr() {\n\n  // hack for testing $http, $httpBackend\n  MockXhr.$$lastInstance = this;\n\n  this.open = function(method, url, async) {\n    this.$$method = method;\n    this.$$url = url;\n    this.$$async = async;\n    this.$$reqHeaders = {};\n    this.$$respHeaders = {};\n  };\n\n  this.send = function(data) {\n    this.$$data = data;\n  };\n\n  this.setRequestHeader = function(key, value) {\n    this.$$reqHeaders[key] = value;\n  };\n\n  this.getResponseHeader = function(name) {\n    // the lookup must be case insensitive,\n    // that's why we try two quick lookups first and full scan last\n    var header = this.$$respHeaders[name];\n    if (header) return header;\n\n    name = angular.lowercase(name);\n    header = this.$$respHeaders[name];\n    if (header) return header;\n\n    header = undefined;\n    angular.forEach(this.$$respHeaders, function(headerVal, headerName) {\n      if (!header && angular.lowercase(headerName) === name) header = headerVal;\n    });\n    return header;\n  };\n\n  this.getAllResponseHeaders = function() {\n    var lines = [];\n\n    angular.forEach(this.$$respHeaders, function(value, key) {\n      lines.push(key + ': ' + value);\n    });\n    return lines.join('\\n');\n  };\n\n  this.abort = angular.noop;\n\n  // This section simulates the events on a real XHR object (and the upload object)\n  // When we are testing $httpBackend (inside the angular project) we make partial use of this\n  // but store the events directly ourselves on `$$events`, instead of going through the `addEventListener`\n  this.$$events = {};\n  this.addEventListener = function(name, listener) {\n    if (angular.isUndefined(this.$$events[name])) this.$$events[name] = [];\n    this.$$events[name].push(listener);\n  };\n\n  this.upload = {\n    $$events: {},\n    addEventListener: this.addEventListener\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $timeout\n * @description\n *\n * This service is just a simple decorator for {@link ng.$timeout $timeout} service\n * that adds a \"flush\" and \"verifyNoPendingTasks\" methods.\n */\n\nangular.mock.$TimeoutDecorator = ['$delegate', '$browser', function($delegate, $browser) {\n\n  /**\n   * @ngdoc method\n   * @name $timeout#flush\n   * @description\n   *\n   * Flushes the queue of pending tasks.\n   *\n   * @param {number=} delay maximum timeout amount to flush up until\n   */\n  $delegate.flush = function(delay) {\n    $browser.defer.flush(delay);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $timeout#verifyNoPendingTasks\n   * @description\n   *\n   * Verifies that there are no pending tasks that need to be flushed.\n   */\n  $delegate.verifyNoPendingTasks = function() {\n    if ($browser.deferredFns.length) {\n      throw new Error('Deferred tasks to flush (' + $browser.deferredFns.length + '): ' +\n          formatPendingTasksAsString($browser.deferredFns));\n    }\n  };\n\n  function formatPendingTasksAsString(tasks) {\n    var result = [];\n    angular.forEach(tasks, function(task) {\n      result.push('{id: ' + task.id + ', time: ' + task.time + '}');\n    });\n\n    return result.join(', ');\n  }\n\n  return $delegate;\n}];\n\nangular.mock.$RAFDecorator = ['$delegate', function($delegate) {\n  var rafFn = function(fn) {\n    var index = rafFn.queue.length;\n    rafFn.queue.push(fn);\n    return function() {\n      rafFn.queue.splice(index, 1);\n    };\n  };\n\n  rafFn.queue = [];\n  rafFn.supported = $delegate.supported;\n\n  rafFn.flush = function() {\n    if (rafFn.queue.length === 0) {\n      throw new Error('No rAF callbacks present');\n    }\n\n    var length = rafFn.queue.length;\n    for (var i = 0; i < length; i++) {\n      rafFn.queue[i]();\n    }\n\n    rafFn.queue = rafFn.queue.slice(i);\n  };\n\n  return rafFn;\n}];\n\n/**\n *\n */\nvar originalRootElement;\nangular.mock.$RootElementProvider = function() {\n  this.$get = ['$injector', function($injector) {\n    originalRootElement = angular.element('<div ng-app></div>').data('$injector', $injector);\n    return originalRootElement;\n  }];\n};\n\n/**\n * @ngdoc service\n * @name $controller\n * @description\n * A decorator for {@link ng.$controller} with additional `bindings` parameter, useful when testing\n * controllers of directives that use {@link $compile#-bindtocontroller- `bindToController`}.\n *\n * Depending on the value of\n * {@link ng.$compileProvider#preAssignBindingsEnabled `preAssignBindingsEnabled()`}, the properties\n * will be bound before or after invoking the constructor.\n *\n *\n * ## Example\n *\n * ```js\n *\n * // Directive definition ...\n *\n * myMod.directive('myDirective', {\n *   controller: 'MyDirectiveController',\n *   bindToController: {\n *     name: '@'\n *   }\n * });\n *\n *\n * // Controller definition ...\n *\n * myMod.controller('MyDirectiveController', ['$log', function($log) {\n *   this.log = function() {\n *     $log.info(this.name);\n *   };\n * }]);\n *\n *\n * // In a test ...\n *\n * describe('myDirectiveController', function() {\n *   describe('log()', function() {\n *     it('should write the bound name to the log', inject(function($controller, $log) {\n *       var ctrl = $controller('MyDirectiveController', { /* no locals &#42;/ }, { name: 'Clark Kent' });\n *       ctrl.log();\n *\n *       expect(ctrl.name).toEqual('Clark Kent');\n *       expect($log.info.logs).toEqual(['Clark Kent']);\n *     }));\n *   });\n * });\n *\n * ```\n *\n * @param {Function|string} constructor If called with a function then it's considered to be the\n *    controller constructor function. Otherwise it's considered to be a string which is used\n *    to retrieve the controller constructor using the following steps:\n *\n *    * check if a controller with given name is registered via `$controllerProvider`\n *    * check if evaluating the string on the current scope returns a constructor\n *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n *      `window` object (not recommended)\n *\n *    The string can use the `controller as property` syntax, where the controller instance is published\n *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n *    to work correctly.\n *\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller instance. This is used to simulate\n *                           the `bindToController` feature and simplify certain kinds of tests.\n * @return {Object} Instance of given controller.\n */\nfunction createControllerDecorator(compileProvider) {\n  angular.mock.$ControllerDecorator = ['$delegate', function($delegate) {\n    return function(expression, locals, later, ident) {\n      if (later && typeof later === 'object') {\n        var preAssignBindingsEnabled = compileProvider.preAssignBindingsEnabled();\n\n        var instantiate = $delegate(expression, locals, true, ident);\n        if (preAssignBindingsEnabled) {\n          angular.extend(instantiate.instance, later);\n        }\n\n        var instance = instantiate();\n        if (!preAssignBindingsEnabled || instance !== instantiate.instance) {\n          angular.extend(instance, later);\n        }\n\n        return instance;\n      }\n      return $delegate(expression, locals, later, ident);\n    };\n  }];\n\n  return angular.mock.$ControllerDecorator;\n}\n\n/**\n * @ngdoc service\n * @name $componentController\n * @description\n * A service that can be used to create instances of component controllers. Useful for unit-testing.\n *\n * Be aware that the controller will be instantiated and attached to the scope as specified in\n * the component definition object. If you do not provide a `$scope` object in the `locals` param\n * then the helper will create a new isolated scope as a child of `$rootScope`.\n *\n * If you are using `$element` or `$attrs` in the controller, make sure to provide them as `locals`.\n * The `$element` must be a jqLite-wrapped DOM element, and `$attrs` should be an object that\n * has all properties / functions that you are using in the controller. If this is getting too complex,\n * you should compile the component instead and access the component's controller via the\n * {@link angular.element#methods `controller`} function.\n *\n * See also the section on {@link guide/component#unit-testing-component-controllers unit-testing component controllers}\n * in the guide.\n *\n * @param {string} componentName the name of the component whose controller we want to instantiate\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller before invoking the constructor. This is used\n *                           to simulate the `bindToController` feature and simplify certain kinds of tests.\n * @param {string=} ident Override the property name to use when attaching the controller to the scope.\n * @return {Object} Instance of requested controller.\n */\nangular.mock.$ComponentControllerProvider = ['$compileProvider',\n    function ComponentControllerProvider($compileProvider) {\n  this.$get = ['$controller','$injector', '$rootScope', function($controller, $injector, $rootScope) {\n    return function $componentController(componentName, locals, bindings, ident) {\n      // get all directives associated to the component name\n      var directives = $injector.get(componentName + 'Directive');\n      // look for those directives that are components\n      var candidateDirectives = directives.filter(function(directiveInfo) {\n        // components have controller, controllerAs and restrict:'E'\n        return directiveInfo.controller && directiveInfo.controllerAs && directiveInfo.restrict === 'E';\n      });\n      // check if valid directives found\n      if (candidateDirectives.length === 0) {\n        throw new Error('No component found');\n      }\n      if (candidateDirectives.length > 1) {\n        throw new Error('Too many components found');\n      }\n      // get the info of the component\n      var directiveInfo = candidateDirectives[0];\n      // create a scope if needed\n      locals = locals || {};\n      locals.$scope = locals.$scope || $rootScope.$new(true);\n      return $controller(directiveInfo.controller, locals, bindings, ident || directiveInfo.controllerAs);\n    };\n  }];\n}];\n\n\n/**\n * @ngdoc module\n * @name ngMock\n * @packageName angular-mocks\n * @description\n *\n * # ngMock\n *\n * The `ngMock` module provides support to inject and mock Angular services into unit tests.\n * In addition, ngMock also extends various core ng services such that they can be\n * inspected and controlled in a synchronous manner within test code.\n *\n *\n * <div doc-module-components=\"ngMock\"></div>\n *\n * @installation\n *\n *  First, download the file:\n *  * [Google CDN](https://developers.google.com/speed/libraries/devguide#angularjs) e.g.\n *    `\"//ajax.googleapis.com/ajax/libs/angularjs/X.Y.Z/angular-mocks.js\"`\n *  * [NPM](https://www.npmjs.com/) e.g. `npm install angular-mocks@X.Y.Z`\n *  * [Yarn](https://yarnpkg.com) e.g. `yarn add angular-mocks@X.Y.Z`\n *  * [Bower](http://bower.io) e.g. `bower install angular-mocks#X.Y.Z`\n *  * [code.angularjs.org](https://code.angularjs.org/) (discouraged for production use)  e.g.\n *    `\"//code.angularjs.org/X.Y.Z/angular-mocks.js\"`\n *\n * where X.Y.Z is the AngularJS version you are running.\n *\n * Then, configure your test runner to load `angular-mocks.js` after `angular.js`.\n * This example uses <a href=\"http://karma-runner.github.io/\">Karma</a>:\n *\n * ```\n * config.set({\n *   files: [\n *     'build/angular.js', // and other module files you need\n *     'build/angular-mocks.js',\n *     '<path/to/application/files>',\n *     '<path/to/spec/files>'\n *   ]\n * });\n * ```\n *\n * Including the `angular-mocks.js` file automatically adds the `ngMock` module, so your tests\n *  are ready to go!\n */\nangular.module('ngMock', ['ng']).provider({\n  $browser: angular.mock.$BrowserProvider,\n  $exceptionHandler: angular.mock.$ExceptionHandlerProvider,\n  $log: angular.mock.$LogProvider,\n  $interval: angular.mock.$IntervalProvider,\n  $httpBackend: angular.mock.$HttpBackendProvider,\n  $rootElement: angular.mock.$RootElementProvider,\n  $componentController: angular.mock.$ComponentControllerProvider\n}).config(['$provide', '$compileProvider', function($provide, $compileProvider) {\n  $provide.decorator('$timeout', angular.mock.$TimeoutDecorator);\n  $provide.decorator('$$rAF', angular.mock.$RAFDecorator);\n  $provide.decorator('$rootScope', angular.mock.$RootScopeDecorator);\n  $provide.decorator('$controller', createControllerDecorator($compileProvider));\n}]);\n\n/**\n * @ngdoc module\n * @name ngMockE2E\n * @module ngMockE2E\n * @packageName angular-mocks\n * @description\n *\n * The `ngMockE2E` is an angular module which contains mocks suitable for end-to-end testing.\n * Currently there is only one mock present in this module -\n * the {@link ngMockE2E.$httpBackend e2e $httpBackend} mock.\n */\nangular.module('ngMockE2E', ['ng']).config(['$provide', function($provide) {\n  $provide.value('$httpBackend', angular.injector(['ng']).get('$httpBackend'));\n  $provide.decorator('$httpBackend', angular.mock.e2e.$httpBackendDecorator);\n}]);\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @module ngMockE2E\n * @description\n * Fake HTTP backend implementation suitable for end-to-end testing or backend-less development of\n * applications that use the {@link ng.$http $http service}.\n *\n * <div class=\"alert alert-info\">\n * **Note**: For fake http backend implementation suitable for unit testing please see\n * {@link ngMock.$httpBackend unit-testing $httpBackend mock}.\n * </div>\n *\n * This implementation can be used to respond with static or dynamic responses via the `when` api\n * and its shortcuts (`whenGET`, `whenPOST`, etc) and optionally pass through requests to the\n * real $httpBackend for specific requests (e.g. to interact with certain remote apis or to fetch\n * templates from a webserver).\n *\n * As opposed to unit-testing, in an end-to-end testing scenario or in scenario when an application\n * is being developed with the real backend api replaced with a mock, it is often desirable for\n * certain category of requests to bypass the mock and issue a real http request (e.g. to fetch\n * templates or static files from the webserver). To configure the backend with this behavior\n * use the `passThrough` request handler of `when` instead of `respond`.\n *\n * Additionally, we don't want to manually have to flush mocked out requests like we do during unit\n * testing. For this reason the e2e $httpBackend flushes mocked out requests\n * automatically, closely simulating the behavior of the XMLHttpRequest object.\n *\n * To setup the application to run with this http backend, you have to create a module that depends\n * on the `ngMockE2E` and your application modules and defines the fake backend:\n *\n * ```js\n *   var myAppDev = angular.module('myAppDev', ['myApp', 'ngMockE2E']);\n *   myAppDev.run(function($httpBackend) {\n *     var phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *     $httpBackend.whenGET(/^\\/templates\\//).passThrough(); // Requests for templare are handled by the real server\n *     //...\n *   });\n * ```\n *\n * Afterwards, bootstrap your app with this new module.\n *\n * ## Example\n * <example name=\"httpbackend-e2e-testing\" module=\"myAppE2E\" deps=\"angular-mocks.js\">\n * <file name=\"app.js\">\n *   var myApp = angular.module('myApp', []);\n *\n *   myApp.controller('MainCtrl', function MainCtrl($http) {\n *     var ctrl = this;\n *\n *     ctrl.phones = [];\n *     ctrl.newPhone = {\n *       name: ''\n *     };\n *\n *     ctrl.getPhones = function() {\n *       $http.get('/phones').then(function(response) {\n *         ctrl.phones = response.data;\n *       });\n *     };\n *\n *     ctrl.addPhone = function(phone) {\n *       $http.post('/phones', phone).then(function() {\n *         ctrl.newPhone = {name: ''};\n *         return ctrl.getPhones();\n *       });\n *     };\n *\n *     ctrl.getPhones();\n *   });\n * </file>\n * <file name=\"e2e.js\">\n *   var myAppDev = angular.module('myAppE2E', ['myApp', 'ngMockE2E']);\n *\n *   myAppDev.run(function($httpBackend) {\n *     var phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *   });\n * </file>\n * <file name=\"index.html\">\n *   <div ng-controller=\"MainCtrl as $ctrl\">\n *   <form name=\"newPhoneForm\" ng-submit=\"$ctrl.addPhone($ctrl.newPhone)\">\n *     <input type=\"text\" ng-model=\"$ctrl.newPhone.name\">\n *     <input type=\"submit\" value=\"Add Phone\">\n *   </form>\n *   <h1>Phones</h1>\n *   <ul>\n *     <li ng-repeat=\"phone in $ctrl.phones\">{{phone.name}}</li>\n *   </ul>\n *   </div>\n * </file>\n * </example>\n *\n *\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#when\n * @module ngMockE2E\n * @description\n * Creates a new backend definition.\n *\n * @param {string} method HTTP method.\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n *   object and returns true if the headers match the current definition.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n *\n *  - respond –\n *    ```\n *    { function([status,] data[, headers, statusText])\n *    | function(function(method, url, data, headers, params)}\n *    ```\n *    – The respond method takes a set of static data to be returned or a function that can return\n *    an array containing response status (number), response data (Array|Object|string), response\n *    headers (Object), and the text for the status (string).\n *  - passThrough – `{function()}` – Any request matching a backend definition with\n *    `passThrough` handler will be passed through to the real backend (an XHR request will be made\n *    to the server.)\n *  - Both methods return the `requestHandler` object for possible overrides.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenGET\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for GET requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenHEAD\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for HEAD requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenDELETE\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for DELETE requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPOST\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for POST requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPUT\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PUT requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPATCH\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PATCH requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenJSONP\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for JSONP requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n/**\n * @ngdoc method\n * @name $httpBackend#whenRoute\n * @module ngMockE2E\n * @description\n * Creates a new backend definition that compares only with the requested route.\n *\n * @param {string} method HTTP method.\n * @param {string} url HTTP url string that supports colon param matching.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\nangular.mock.e2e = {};\nangular.mock.e2e.$httpBackendDecorator =\n  ['$rootScope', '$timeout', '$delegate', '$browser', createHttpBackendMock];\n\n\n/**\n * @ngdoc type\n * @name $rootScope.Scope\n * @module ngMock\n * @description\n * {@link ng.$rootScope.Scope Scope} type decorated with helper methods useful for testing. These\n * methods are automatically available on any {@link ng.$rootScope.Scope Scope} instance when\n * `ngMock` module is loaded.\n *\n * In addition to all the regular `Scope` methods, the following helper methods are available:\n */\nangular.mock.$RootScopeDecorator = ['$delegate', function($delegate) {\n\n  var $rootScopePrototype = Object.getPrototypeOf($delegate);\n\n  $rootScopePrototype.$countChildScopes = countChildScopes;\n  $rootScopePrototype.$countWatchers = countWatchers;\n\n  return $delegate;\n\n  // ------------------------------------------------------------------------------------------ //\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countChildScopes\n   * @module ngMock\n   * @this $rootScope.Scope\n   * @description\n   * Counts all the direct and indirect child scopes of the current scope.\n   *\n   * The current scope is excluded from the count. The count includes all isolate child scopes.\n   *\n   * @returns {number} Total number of child scopes.\n   */\n  function countChildScopes() {\n    var count = 0; // exclude the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += 1;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countWatchers\n   * @this $rootScope.Scope\n   * @module ngMock\n   * @description\n   * Counts all the watchers of direct and indirect child scopes of the current scope.\n   *\n   * The watchers of the current scope are included in the count and so are all the watchers of\n   * isolate child scopes.\n   *\n   * @returns {number} Total number of watchers.\n   */\n  function countWatchers() {\n    var count = this.$$watchers ? this.$$watchers.length : 0; // include the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += currentScope.$$watchers ? currentScope.$$watchers.length : 0;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n}];\n\n\n(function(jasmineOrMocha) {\n\n  if (!jasmineOrMocha) {\n    return;\n  }\n\n  var currentSpec = null,\n      injectorState = new InjectorState(),\n      annotatedFunctions = [],\n      wasInjectorCreated = function() {\n        return !!currentSpec;\n      };\n\n  angular.mock.$$annotate = angular.injector.$$annotate;\n  angular.injector.$$annotate = function(fn) {\n    if (typeof fn === 'function' && !fn.$inject) {\n      annotatedFunctions.push(fn);\n    }\n    return angular.mock.$$annotate.apply(this, arguments);\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function registers a module configuration code. It collects the configuration information\n   * which will be used when the injector is created by {@link angular.mock.inject inject}.\n   *\n   * See {@link angular.mock.inject inject} for usage example\n   *\n   * @param {...(string|Function|Object)} fns any number of modules which are represented as string\n   *        aliases or as anonymous module initialization functions. The modules are used to\n   *        configure the injector. The 'ng' and 'ngMock' modules are automatically loaded. If an\n   *        object literal is passed each key-value pair will be registered on the module via\n   *        {@link auto.$provide $provide}.value, the key being the string name (or token) to associate\n   *        with the value on the injector.\n   */\n  var module = window.module = angular.mock.module = function() {\n    var moduleFns = Array.prototype.slice.call(arguments, 0);\n    return wasInjectorCreated() ? workFn() : workFn;\n    /////////////////////\n    function workFn() {\n      if (currentSpec.$injector) {\n        throw new Error('Injector already created, can not register a module!');\n      } else {\n        var fn, modules = currentSpec.$modules || (currentSpec.$modules = []);\n        angular.forEach(moduleFns, function(module) {\n          if (angular.isObject(module) && !angular.isArray(module)) {\n            fn = ['$provide', function($provide) {\n              angular.forEach(module, function(value, key) {\n                $provide.value(key, value);\n              });\n            }];\n          } else {\n            fn = module;\n          }\n          if (currentSpec.$providerInjector) {\n            currentSpec.$providerInjector.invoke(fn);\n          } else {\n            modules.push(fn);\n          }\n        });\n      }\n    }\n  };\n\n  module.$$beforeAllHook = (window.before || window.beforeAll);\n  module.$$afterAllHook = (window.after || window.afterAll);\n\n  // purely for testing ngMock itself\n  module.$$currentSpec = function(to) {\n    if (arguments.length === 0) return to;\n    currentSpec = to;\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module.sharedInjector\n   * @description\n   *\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function ensures a single injector will be used for all tests in a given describe context.\n   * This contrasts with the default behaviour where a new injector is created per test case.\n   *\n   * Use sharedInjector when you want to take advantage of Jasmine's `beforeAll()`, or mocha's\n   * `before()` methods. Call `module.sharedInjector()` before you setup any other hooks that\n   * will create (i.e call `module()`) or use (i.e call `inject()`) the injector.\n   *\n   * You cannot call `sharedInjector()` from within a context already using `sharedInjector()`.\n   *\n   * ## Example\n   *\n   * Typically beforeAll is used to make many assertions about a single operation. This can\n   * cut down test run-time as the test setup doesn't need to be re-run, and enabling focussed\n   * tests each with a single assertion.\n   *\n   * ```js\n   * describe(\"Deep Thought\", function() {\n   *\n   *   module.sharedInjector();\n   *\n   *   beforeAll(module(\"UltimateQuestion\"));\n   *\n   *   beforeAll(inject(function(DeepThought) {\n   *     expect(DeepThought.answer).toBeUndefined();\n   *     DeepThought.generateAnswer();\n   *   }));\n   *\n   *   it(\"has calculated the answer correctly\", inject(function(DeepThought) {\n   *     // Because of sharedInjector, we have access to the instance of the DeepThought service\n   *     // that was provided to the beforeAll() hook. Therefore we can test the generated answer\n   *     expect(DeepThought.answer).toBe(42);\n   *   }));\n   *\n   *   it(\"has calculated the answer within the expected time\", inject(function(DeepThought) {\n   *     expect(DeepThought.runTimeMillennia).toBeLessThan(8000);\n   *   }));\n   *\n   *   it(\"has double checked the answer\", inject(function(DeepThought) {\n   *     expect(DeepThought.absolutelySureItIsTheRightAnswer).toBe(true);\n   *   }));\n   *\n   * });\n   *\n   * ```\n   */\n  module.sharedInjector = function() {\n    if (!(module.$$beforeAllHook && module.$$afterAllHook)) {\n      throw Error('sharedInjector() cannot be used unless your test runner defines beforeAll/afterAll');\n    }\n\n    var initialized = false;\n\n    module.$$beforeAllHook(/** @this */ function() {\n      if (injectorState.shared) {\n        injectorState.sharedError = Error('sharedInjector() cannot be called inside a context that has already called sharedInjector()');\n        throw injectorState.sharedError;\n      }\n      initialized = true;\n      currentSpec = this;\n      injectorState.shared = true;\n    });\n\n    module.$$afterAllHook(function() {\n      if (initialized) {\n        injectorState = new InjectorState();\n        module.$$cleanup();\n      } else {\n        injectorState.sharedError = null;\n      }\n    });\n  };\n\n  module.$$beforeEach = function() {\n    if (injectorState.shared && currentSpec && currentSpec !== this) {\n      var state = currentSpec;\n      currentSpec = this;\n      angular.forEach(['$injector','$modules','$providerInjector', '$injectorStrict'], function(k) {\n        currentSpec[k] = state[k];\n        state[k] = null;\n      });\n    } else {\n      currentSpec = this;\n      originalRootElement = null;\n      annotatedFunctions = [];\n    }\n  };\n\n  module.$$afterEach = function() {\n    if (injectorState.cleanupAfterEach()) {\n      module.$$cleanup();\n    }\n  };\n\n  module.$$cleanup = function() {\n    var injector = currentSpec.$injector;\n\n    annotatedFunctions.forEach(function(fn) {\n      delete fn.$inject;\n    });\n\n    angular.forEach(currentSpec.$modules, function(module) {\n      if (module && module.$$hashKey) {\n        module.$$hashKey = undefined;\n      }\n    });\n\n    currentSpec.$injector = null;\n    currentSpec.$modules = null;\n    currentSpec.$providerInjector = null;\n    currentSpec = null;\n\n    if (injector) {\n      // Ensure `$rootElement` is instantiated, before checking `originalRootElement`\n      var $rootElement = injector.get('$rootElement');\n      var rootNode = $rootElement && $rootElement[0];\n      var cleanUpNodes = !originalRootElement ? [] : [originalRootElement[0]];\n      if (rootNode && (!originalRootElement || rootNode !== originalRootElement[0])) {\n        cleanUpNodes.push(rootNode);\n      }\n      angular.element.cleanData(cleanUpNodes);\n\n      // Ensure `$destroy()` is available, before calling it\n      // (a mocked `$rootScope` might not implement it (or not even be an object at all))\n      var $rootScope = injector.get('$rootScope');\n      if ($rootScope && $rootScope.$destroy) $rootScope.$destroy();\n    }\n\n    // clean up jquery's fragment cache\n    angular.forEach(angular.element.fragments, function(val, key) {\n      delete angular.element.fragments[key];\n    });\n\n    MockXhr.$$lastInstance = null;\n\n    angular.forEach(angular.callbacks, function(val, key) {\n      delete angular.callbacks[key];\n    });\n    angular.callbacks.$$counter = 0;\n  };\n\n  (window.beforeEach || window.setup)(module.$$beforeEach);\n  (window.afterEach || window.teardown)(module.$$afterEach);\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.inject\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * The inject function wraps a function into an injectable function. The inject() creates new\n   * instance of {@link auto.$injector $injector} per test, which is then used for\n   * resolving references.\n   *\n   *\n   * ## Resolving References (Underscore Wrapping)\n   * Often, we would like to inject a reference once, in a `beforeEach()` block and reuse this\n   * in multiple `it()` clauses. To be able to do this we must assign the reference to a variable\n   * that is declared in the scope of the `describe()` block. Since we would, most likely, want\n   * the variable to have the same name of the reference we have a problem, since the parameter\n   * to the `inject()` function would hide the outer variable.\n   *\n   * To help with this, the injected parameters can, optionally, be enclosed with underscores.\n   * These are ignored by the injector when the reference name is resolved.\n   *\n   * For example, the parameter `_myService_` would be resolved as the reference `myService`.\n   * Since it is available in the function body as `_myService_`, we can then assign it to a variable\n   * defined in an outer scope.\n   *\n   * ```\n   * // Defined out reference variable outside\n   * var myService;\n   *\n   * // Wrap the parameter in underscores\n   * beforeEach( inject( function(_myService_){\n   *   myService = _myService_;\n   * }));\n   *\n   * // Use myService in a series of tests.\n   * it('makes use of myService', function() {\n   *   myService.doStuff();\n   * });\n   *\n   * ```\n   *\n   * See also {@link angular.mock.module angular.mock.module}\n   *\n   * ## Example\n   * Example of what a typical jasmine tests looks like with the inject method.\n   * ```js\n   *\n   *   angular.module('myApplicationModule', [])\n   *       .value('mode', 'app')\n   *       .value('version', 'v1.0.1');\n   *\n   *\n   *   describe('MyApp', function() {\n   *\n   *     // You need to load modules that you want to test,\n   *     // it loads only the \"ng\" module by default.\n   *     beforeEach(module('myApplicationModule'));\n   *\n   *\n   *     // inject() is used to inject arguments of all given functions\n   *     it('should provide a version', inject(function(mode, version) {\n   *       expect(version).toEqual('v1.0.1');\n   *       expect(mode).toEqual('app');\n   *     }));\n   *\n   *\n   *     // The inject and module method can also be used inside of the it or beforeEach\n   *     it('should override a version and test the new version is injected', function() {\n   *       // module() takes functions or strings (module aliases)\n   *       module(function($provide) {\n   *         $provide.value('version', 'overridden'); // override version here\n   *       });\n   *\n   *       inject(function(version) {\n   *         expect(version).toEqual('overridden');\n   *       });\n   *     });\n   *   });\n   *\n   * ```\n   *\n   * @param {...Function} fns any number of functions which will be injected using the injector.\n   */\n\n\n\n  var ErrorAddingDeclarationLocationStack = function ErrorAddingDeclarationLocationStack(e, errorForStack) {\n    this.message = e.message;\n    this.name = e.name;\n    if (e.line) this.line = e.line;\n    if (e.sourceId) this.sourceId = e.sourceId;\n    if (e.stack && errorForStack)\n      this.stack = e.stack + '\\n' + errorForStack.stack;\n    if (e.stackArray) this.stackArray = e.stackArray;\n  };\n  ErrorAddingDeclarationLocationStack.prototype = Error.prototype;\n\n  window.inject = angular.mock.inject = function() {\n    var blockFns = Array.prototype.slice.call(arguments, 0);\n    var errorForStack = new Error('Declaration Location');\n    // IE10+ and PhanthomJS do not set stack trace information, until the error is thrown\n    if (!errorForStack.stack) {\n      try {\n        throw errorForStack;\n      } catch (e) { /* empty */ }\n    }\n    return wasInjectorCreated() ? WorkFn.call(currentSpec) : WorkFn;\n    /////////////////////\n    function WorkFn() {\n      var modules = currentSpec.$modules || [];\n      var strictDi = !!currentSpec.$injectorStrict;\n      modules.unshift(['$injector', function($injector) {\n        currentSpec.$providerInjector = $injector;\n      }]);\n      modules.unshift('ngMock');\n      modules.unshift('ng');\n      var injector = currentSpec.$injector;\n      if (!injector) {\n        if (strictDi) {\n          // If strictDi is enabled, annotate the providerInjector blocks\n          angular.forEach(modules, function(moduleFn) {\n            if (typeof moduleFn === 'function') {\n              angular.injector.$$annotate(moduleFn);\n            }\n          });\n        }\n        injector = currentSpec.$injector = angular.injector(modules, strictDi);\n        currentSpec.$injectorStrict = strictDi;\n      }\n      for (var i = 0, ii = blockFns.length; i < ii; i++) {\n        if (currentSpec.$injectorStrict) {\n          // If the injector is strict / strictDi, and the spec wants to inject using automatic\n          // annotation, then annotate the function here.\n          injector.annotate(blockFns[i]);\n        }\n        try {\n          injector.invoke(blockFns[i] || angular.noop, this);\n        } catch (e) {\n          if (e.stack && errorForStack) {\n            throw new ErrorAddingDeclarationLocationStack(e, errorForStack);\n          }\n          throw e;\n        } finally {\n          errorForStack = null;\n        }\n      }\n    }\n  };\n\n\n  angular.mock.inject.strictDi = function(value) {\n    value = arguments.length ? !!value : true;\n    return wasInjectorCreated() ? workFn() : workFn;\n\n    function workFn() {\n      if (value !== currentSpec.$injectorStrict) {\n        if (currentSpec.$injector) {\n          throw new Error('Injector already created, can not modify strict annotations');\n        } else {\n          currentSpec.$injectorStrict = value;\n        }\n      }\n    }\n  };\n\n  function InjectorState() {\n    this.shared = false;\n    this.sharedError = null;\n\n    this.cleanupAfterEach = function() {\n      return !this.shared || this.sharedError;\n    };\n  }\n})(window.jasmine || window.mocha);\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.5/angular.js",
    "content": "/**\n * @license AngularJS v1.5.11\n * (c) 2010-2017 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window) {'use strict';\n\n/**\n * @description\n *\n * This object provides a utility for producing rich Error messages within\n * Angular. It can be called as follows:\n *\n * var exampleMinErr = minErr('example');\n * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);\n *\n * The above creates an instance of minErr in the example namespace. The\n * resulting error will have a namespaced error code of example.one.  The\n * resulting error will replace {0} with the value of foo, and {1} with the\n * value of bar. The object is not restricted in the number of arguments it can\n * take.\n *\n * If fewer arguments are specified than necessary for interpolation, the extra\n * interpolation markers will be preserved in the final string.\n *\n * Since data will be parsed statically during a build step, some restrictions\n * are applied with respect to how minErr instances are created and called.\n * Instances should have names of the form namespaceMinErr for a minErr created\n * using minErr('namespace') . Error codes, namespaces and template strings\n * should all be static strings, not variables or general expressions.\n *\n * @param {string} module The namespace to use for the new minErr instance.\n * @param {function} ErrorConstructor Custom error constructor to be instantiated when returning\n *   error from returned function, for cases when a particular type of error is useful.\n * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance\n */\n\nfunction minErr(module, ErrorConstructor) {\n  ErrorConstructor = ErrorConstructor || Error;\n  return function() {\n    var SKIP_INDEXES = 2;\n\n    var templateArgs = arguments,\n      code = templateArgs[0],\n      message = '[' + (module ? module + ':' : '') + code + '] ',\n      template = templateArgs[1],\n      paramPrefix, i;\n\n    message += template.replace(/\\{\\d+\\}/g, function(match) {\n      var index = +match.slice(1, -1),\n        shiftedIndex = index + SKIP_INDEXES;\n\n      if (shiftedIndex < templateArgs.length) {\n        return toDebugString(templateArgs[shiftedIndex]);\n      }\n\n      return match;\n    });\n\n    message += '\\nhttp://errors.angularjs.org/1.5.11/' +\n      (module ? module + '/' : '') + code;\n\n    for (i = SKIP_INDEXES, paramPrefix = '?'; i < templateArgs.length; i++, paramPrefix = '&') {\n      message += paramPrefix + 'p' + (i - SKIP_INDEXES) + '=' +\n        encodeURIComponent(toDebugString(templateArgs[i]));\n    }\n\n    return new ErrorConstructor(message);\n  };\n}\n\n/* We need to tell ESLint what variables are being exported */\n/* exported\n  angular,\n  msie,\n  jqLite,\n  jQuery,\n  slice,\n  splice,\n  push,\n  toString,\n  ngMinErr,\n  angularModule,\n  uid,\n  REGEX_STRING_REGEXP,\n  VALIDITY_STATE_PROPERTY,\n\n  lowercase,\n  uppercase,\n  manualLowercase,\n  manualUppercase,\n  nodeName_,\n  isArrayLike,\n  forEach,\n  forEachSorted,\n  reverseParams,\n  nextUid,\n  setHashKey,\n  extend,\n  toInt,\n  inherit,\n  merge,\n  noop,\n  identity,\n  valueFn,\n  isUndefined,\n  isDefined,\n  isObject,\n  isBlankObject,\n  isString,\n  isNumber,\n  isNumberNaN,\n  isDate,\n  isArray,\n  isFunction,\n  isRegExp,\n  isWindow,\n  isScope,\n  isFile,\n  isFormData,\n  isBlob,\n  isBoolean,\n  isPromiseLike,\n  trim,\n  escapeForRegexp,\n  isElement,\n  makeMap,\n  includes,\n  arrayRemove,\n  copy,\n  equals,\n  csp,\n  jq,\n  concat,\n  sliceArgs,\n  bind,\n  toJsonReplacer,\n  toJson,\n  fromJson,\n  convertTimezoneToLocal,\n  timezoneToOffset,\n  startingTag,\n  tryDecodeURIComponent,\n  parseKeyValue,\n  toKeyValue,\n  encodeUriSegment,\n  encodeUriQuery,\n  angularInit,\n  bootstrap,\n  getTestability,\n  snake_case,\n  bindJQuery,\n  assertArg,\n  assertArgFn,\n  assertNotHasOwnProperty,\n  getter,\n  getBlockNodes,\n  hasOwnProperty,\n  createMap,\n\n  NODE_TYPE_ELEMENT,\n  NODE_TYPE_ATTRIBUTE,\n  NODE_TYPE_TEXT,\n  NODE_TYPE_COMMENT,\n  NODE_TYPE_DOCUMENT,\n  NODE_TYPE_DOCUMENT_FRAGMENT\n*/\n\n////////////////////////////////////\n\n/**\n * @ngdoc module\n * @name ng\n * @module ng\n * @installation\n * @description\n *\n * # ng (core module)\n * The ng module is loaded by default when an AngularJS application is started. The module itself\n * contains the essential components for an AngularJS application to function. The table below\n * lists a high level breakdown of each of the services/factories, filters, directives and testing\n * components available within this core module.\n *\n * <div doc-module-components=\"ng\"></div>\n */\n\nvar REGEX_STRING_REGEXP = /^\\/(.+)\\/([a-z]*)$/;\n\n// The name of a form control's ValidityState property.\n// This is used so that it's possible for internal tests to create mock ValidityStates.\nvar VALIDITY_STATE_PROPERTY = 'validity';\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nvar lowercase = function(string) {return isString(string) ? string.toLowerCase() : string;};\nvar uppercase = function(string) {return isString(string) ? string.toUpperCase() : string;};\n\n\nvar manualLowercase = function(s) {\n  /* eslint-disable no-bitwise */\n  return isString(s)\n      ? s.replace(/[A-Z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) | 32);})\n      : s;\n  /* eslint-enable */\n};\nvar manualUppercase = function(s) {\n  /* eslint-disable no-bitwise */\n  return isString(s)\n      ? s.replace(/[a-z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) & ~32);})\n      : s;\n  /* eslint-enable */\n};\n\n\n// String#toLowerCase and String#toUpperCase don't produce correct results in browsers with Turkish\n// locale, for this reason we need to detect this case and redefine lowercase/uppercase methods\n// with correct but slower alternatives. See https://github.com/angular/angular.js/issues/11387\nif ('i' !== 'I'.toLowerCase()) {\n  lowercase = manualLowercase;\n  uppercase = manualUppercase;\n}\n\n\nvar\n    msie,             // holds major version number for IE, or NaN if UA is not IE.\n    jqLite,           // delay binding since jQuery could be loaded after us.\n    jQuery,           // delay binding\n    slice             = [].slice,\n    splice            = [].splice,\n    push              = [].push,\n    toString          = Object.prototype.toString,\n    getPrototypeOf    = Object.getPrototypeOf,\n    ngMinErr          = minErr('ng'),\n\n    /** @name angular */\n    angular           = window.angular || (window.angular = {}),\n    angularModule,\n    uid               = 0;\n\n/**\n * documentMode is an IE-only property\n * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx\n */\nmsie = window.document.documentMode;\n\n\n/**\n * @private\n * @param {*} obj\n * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,\n *                   String ...)\n */\nfunction isArrayLike(obj) {\n\n  // `null`, `undefined` and `window` are not array-like\n  if (obj == null || isWindow(obj)) return false;\n\n  // arrays, strings and jQuery/jqLite objects are array like\n  // * jqLite is either the jQuery or jqLite constructor function\n  // * we have to check the existence of jqLite first as this method is called\n  //   via the forEach method when constructing the jqLite object in the first place\n  if (isArray(obj) || isString(obj) || (jqLite && obj instanceof jqLite)) return true;\n\n  // Support: iOS 8.2 (not reproducible in simulator)\n  // \"length\" in obj used to prevent JIT error (gh-11508)\n  var length = 'length' in Object(obj) && obj.length;\n\n  // NodeList objects (with `item` method) and\n  // other objects with suitable length characteristics are array-like\n  return isNumber(length) &&\n    (length >= 0 && ((length - 1) in obj || obj instanceof Array) || typeof obj.item === 'function');\n\n}\n\n/**\n * @ngdoc function\n * @name angular.forEach\n * @module ng\n * @kind function\n *\n * @description\n * Invokes the `iterator` function once for each item in `obj` collection, which can be either an\n * object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value`\n * is the value of an object property or an array element, `key` is the object property key or\n * array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.\n *\n * It is worth noting that `.forEach` does not iterate over inherited properties because it filters\n * using the `hasOwnProperty` method.\n *\n * Unlike ES262's\n * [Array.prototype.forEach](http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.18),\n * providing 'undefined' or 'null' values for `obj` will not throw a TypeError, but rather just\n * return the value provided.\n *\n   ```js\n     var values = {name: 'misko', gender: 'male'};\n     var log = [];\n     angular.forEach(values, function(value, key) {\n       this.push(key + ': ' + value);\n     }, log);\n     expect(log).toEqual(['name: misko', 'gender: male']);\n   ```\n *\n * @param {Object|Array} obj Object to iterate over.\n * @param {Function} iterator Iterator function.\n * @param {Object=} context Object to become context (`this`) for the iterator function.\n * @returns {Object|Array} Reference to `obj`.\n */\n\nfunction forEach(obj, iterator, context) {\n  var key, length;\n  if (obj) {\n    if (isFunction(obj)) {\n      for (key in obj) {\n        // Need to check if hasOwnProperty exists,\n        // as on IE8 the result of querySelectorAll is an object without a hasOwnProperty function\n        if (key !== 'prototype' && key !== 'length' && key !== 'name' && (!obj.hasOwnProperty || obj.hasOwnProperty(key))) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (isArray(obj) || isArrayLike(obj)) {\n      var isPrimitive = typeof obj !== 'object';\n      for (key = 0, length = obj.length; key < length; key++) {\n        if (isPrimitive || key in obj) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (obj.forEach && obj.forEach !== forEach) {\n        obj.forEach(iterator, context, obj);\n    } else if (isBlankObject(obj)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in obj) {\n        iterator.call(context, obj[key], key, obj);\n      }\n    } else if (typeof obj.hasOwnProperty === 'function') {\n      // Slow path for objects inheriting Object.prototype, hasOwnProperty check needed\n      for (key in obj) {\n        if (obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else {\n      // Slow path for objects which do not have a method `hasOwnProperty`\n      for (key in obj) {\n        if (hasOwnProperty.call(obj, key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    }\n  }\n  return obj;\n}\n\nfunction forEachSorted(obj, iterator, context) {\n  var keys = Object.keys(obj).sort();\n  for (var i = 0; i < keys.length; i++) {\n    iterator.call(context, obj[keys[i]], keys[i]);\n  }\n  return keys;\n}\n\n\n/**\n * when using forEach the params are value, key, but it is often useful to have key, value.\n * @param {function(string, *)} iteratorFn\n * @returns {function(*, string)}\n */\nfunction reverseParams(iteratorFn) {\n  return function(value, key) {iteratorFn(key, value);};\n}\n\n/**\n * A consistent way of creating unique IDs in angular.\n *\n * Using simple numbers allows us to generate 28.6 million unique ids per second for 10 years before\n * we hit number precision issues in JavaScript.\n *\n * Math.pow(2,53) / 60 / 60 / 24 / 365 / 10 = 28.6M\n *\n * @returns {number} an unique alpha-numeric string\n */\nfunction nextUid() {\n  return ++uid;\n}\n\n\n/**\n * Set or clear the hashkey for an object.\n * @param obj object\n * @param h the hashkey (!truthy to delete the hashkey)\n */\nfunction setHashKey(obj, h) {\n  if (h) {\n    obj.$$hashKey = h;\n  } else {\n    delete obj.$$hashKey;\n  }\n}\n\n\nfunction baseExtend(dst, objs, deep) {\n  var h = dst.$$hashKey;\n\n  for (var i = 0, ii = objs.length; i < ii; ++i) {\n    var obj = objs[i];\n    if (!isObject(obj) && !isFunction(obj)) continue;\n    var keys = Object.keys(obj);\n    for (var j = 0, jj = keys.length; j < jj; j++) {\n      var key = keys[j];\n      var src = obj[key];\n\n      if (deep && isObject(src)) {\n        if (isDate(src)) {\n          dst[key] = new Date(src.valueOf());\n        } else if (isRegExp(src)) {\n          dst[key] = new RegExp(src);\n        } else if (src.nodeName) {\n          dst[key] = src.cloneNode(true);\n        } else if (isElement(src)) {\n          dst[key] = src.clone();\n        } else {\n          if (!isObject(dst[key])) dst[key] = isArray(src) ? [] : {};\n          baseExtend(dst[key], [src], true);\n        }\n      } else {\n        dst[key] = src;\n      }\n    }\n  }\n\n  setHashKey(dst, h);\n  return dst;\n}\n\n/**\n * @ngdoc function\n * @name angular.extend\n * @module ng\n * @kind function\n *\n * @description\n * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n * to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n * by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.\n *\n * **Note:** Keep in mind that `angular.extend` does not support recursive merge (deep copy). Use\n * {@link angular.merge} for this.\n *\n * @param {Object} dst Destination object.\n * @param {...Object} src Source object(s).\n * @returns {Object} Reference to `dst`.\n */\nfunction extend(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), false);\n}\n\n\n/**\n* @ngdoc function\n* @name angular.merge\n* @module ng\n* @kind function\n*\n* @description\n* Deeply extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n* to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n* by passing an empty object as the target: `var object = angular.merge({}, object1, object2)`.\n*\n* Unlike {@link angular.extend extend()}, `merge()` recursively descends into object properties of source\n* objects, performing a deep copy.\n*\n* @param {Object} dst Destination object.\n* @param {...Object} src Source object(s).\n* @returns {Object} Reference to `dst`.\n*/\nfunction merge(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), true);\n}\n\n\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nvar isNumberNaN = Number.isNaN || function isNumberNaN(num) {\n  // eslint-disable-next-line no-self-compare\n  return num !== num;\n};\n\n\nfunction inherit(parent, extra) {\n  return extend(Object.create(parent), extra);\n}\n\n/**\n * @ngdoc function\n * @name angular.noop\n * @module ng\n * @kind function\n *\n * @description\n * A function that performs no operations. This function can be useful when writing code in the\n * functional style.\n   ```js\n     function foo(callback) {\n       var result = calculateResult();\n       (callback || angular.noop)(result);\n     }\n   ```\n */\nfunction noop() {}\nnoop.$inject = [];\n\n\n/**\n * @ngdoc function\n * @name angular.identity\n * @module ng\n * @kind function\n *\n * @description\n * A function that returns its first argument. This function is useful when writing code in the\n * functional style.\n *\n   ```js\n   function transformer(transformationFn, value) {\n     return (transformationFn || angular.identity)(value);\n   };\n\n   // E.g.\n   function getResult(fn, input) {\n     return (fn || angular.identity)(input);\n   };\n\n   getResult(function(n) { return n * 2; }, 21);   // returns 42\n   getResult(null, 21);                            // returns 21\n   getResult(undefined, 21);                       // returns 21\n   ```\n *\n * @param {*} value to be returned.\n * @returns {*} the value passed in.\n */\nfunction identity($) {return $;}\nidentity.$inject = [];\n\n\nfunction valueFn(value) {return function valueRef() {return value;};}\n\nfunction hasCustomToString(obj) {\n  return isFunction(obj.toString) && obj.toString !== toString;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isUndefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is undefined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is undefined.\n */\nfunction isUndefined(value) {return typeof value === 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is defined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is defined.\n */\nfunction isDefined(value) {return typeof value !== 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isObject\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not\n * considered to be objects. Note that JavaScript arrays are objects.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Object` but not `null`.\n */\nfunction isObject(value) {\n  // http://jsperf.com/isobject4\n  return value !== null && typeof value === 'object';\n}\n\n\n/**\n * Determine if a value is an object with a null prototype\n *\n * @returns {boolean} True if `value` is an `Object` with a null prototype\n */\nfunction isBlankObject(value) {\n  return value !== null && typeof value === 'object' && !getPrototypeOf(value);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isString\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `String`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `String`.\n */\nfunction isString(value) {return typeof value === 'string';}\n\n\n/**\n * @ngdoc function\n * @name angular.isNumber\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Number`.\n *\n * This includes the \"special\" numbers `NaN`, `+Infinity` and `-Infinity`.\n *\n * If you wish to exclude these then you can use the native\n * [`isFinite'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)\n * method.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Number`.\n */\nfunction isNumber(value) {return typeof value === 'number';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDate\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a value is a date.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Date`.\n */\nfunction isDate(value) {\n  return toString.call(value) === '[object Date]';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isArray\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Array`. Alias of Array.isArray.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Array`.\n */\nvar isArray = Array.isArray;\n\n/**\n * @ngdoc function\n * @name angular.isFunction\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Function`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Function`.\n */\nfunction isFunction(value) {return typeof value === 'function';}\n\n\n/**\n * Determines if a value is a regular expression object.\n *\n * @private\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `RegExp`.\n */\nfunction isRegExp(value) {\n  return toString.call(value) === '[object RegExp]';\n}\n\n\n/**\n * Checks if `obj` is a window object.\n *\n * @private\n * @param {*} obj Object to check\n * @returns {boolean} True if `obj` is a window obj.\n */\nfunction isWindow(obj) {\n  return obj && obj.window === obj;\n}\n\n\nfunction isScope(obj) {\n  return obj && obj.$evalAsync && obj.$watch;\n}\n\n\nfunction isFile(obj) {\n  return toString.call(obj) === '[object File]';\n}\n\n\nfunction isFormData(obj) {\n  return toString.call(obj) === '[object FormData]';\n}\n\n\nfunction isBlob(obj) {\n  return toString.call(obj) === '[object Blob]';\n}\n\n\nfunction isBoolean(value) {\n  return typeof value === 'boolean';\n}\n\n\nfunction isPromiseLike(obj) {\n  return obj && isFunction(obj.then);\n}\n\n\nvar TYPED_ARRAY_REGEXP = /^\\[object (?:Uint8|Uint8Clamped|Uint16|Uint32|Int8|Int16|Int32|Float32|Float64)Array]$/;\nfunction isTypedArray(value) {\n  return value && isNumber(value.length) && TYPED_ARRAY_REGEXP.test(toString.call(value));\n}\n\nfunction isArrayBuffer(obj) {\n  return toString.call(obj) === '[object ArrayBuffer]';\n}\n\n\nvar trim = function(value) {\n  return isString(value) ? value.trim() : value;\n};\n\n// Copied from:\n// http://docs.closure-library.googlecode.com/git/local_closure_goog_string_string.js.source.html#line1021\n// Prereq: s is a string.\nvar escapeForRegexp = function(s) {\n  return s\n    .replace(/([-()[\\]{}+?*.$^|,:#<!\\\\])/g, '\\\\$1')\n    // eslint-disable-next-line no-control-regex\n    .replace(/\\x08/g, '\\\\x08');\n};\n\n\n/**\n * @ngdoc function\n * @name angular.isElement\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a DOM element (or wrapped jQuery element).\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).\n */\nfunction isElement(node) {\n  return !!(node &&\n    (node.nodeName  // We are a direct element.\n    || (node.prop && node.attr && node.find)));  // We have an on and find method part of jQuery API.\n}\n\n/**\n * @param str 'key1,key2,...'\n * @returns {object} in the form of {key1:true, key2:true, ...}\n */\nfunction makeMap(str) {\n  var obj = {}, items = str.split(','), i;\n  for (i = 0; i < items.length; i++) {\n    obj[items[i]] = true;\n  }\n  return obj;\n}\n\n\nfunction nodeName_(element) {\n  return lowercase(element.nodeName || (element[0] && element[0].nodeName));\n}\n\nfunction includes(array, obj) {\n  return Array.prototype.indexOf.call(array, obj) !== -1;\n}\n\nfunction arrayRemove(array, value) {\n  var index = array.indexOf(value);\n  if (index >= 0) {\n    array.splice(index, 1);\n  }\n  return index;\n}\n\n/**\n * @ngdoc function\n * @name angular.copy\n * @module ng\n * @kind function\n *\n * @description\n * Creates a deep copy of `source`, which should be an object or an array.\n *\n * * If no destination is supplied, a copy of the object or array is created.\n * * If a destination is provided, all of its elements (for arrays) or properties (for objects)\n *   are deleted and then all elements/properties from the source are copied to it.\n * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.\n * * If `source` is identical to `destination` an exception will be thrown.\n *\n * <br />\n * <div class=\"alert alert-warning\">\n *   Only enumerable properties are taken into account. Non-enumerable properties (both on `source`\n *   and on `destination`) will be ignored.\n * </div>\n *\n * @param {*} source The source that will be used to make a copy.\n *                   Can be any type, including primitives, `null`, and `undefined`.\n * @param {(Object|Array)=} destination Destination into which the source is copied. If\n *     provided, must be of the same type as `source`.\n * @returns {*} The copy or updated `destination`, if `destination` was specified.\n *\n * @example\n  <example module=\"copyExample\" name=\"angular-copy\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate class=\"simple-form\">\n          <label>Name: <input type=\"text\" ng-model=\"user.name\" /></label><br />\n          <label>Age:  <input type=\"number\" ng-model=\"user.age\" /></label><br />\n          Gender: <label><input type=\"radio\" ng-model=\"user.gender\" value=\"male\" />male</label>\n                  <label><input type=\"radio\" ng-model=\"user.gender\" value=\"female\" />female</label><br />\n          <button ng-click=\"reset()\">RESET</button>\n          <button ng-click=\"update(user)\">SAVE</button>\n        </form>\n        <pre>form = {{user | json}}</pre>\n        <pre>master = {{master | json}}</pre>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      // Module: copyExample\n      angular.\n        module('copyExample', []).\n        controller('ExampleController', ['$scope', function($scope) {\n          $scope.master = {};\n\n          $scope.reset = function() {\n            // Example with 1 argument\n            $scope.user = angular.copy($scope.master);\n          };\n\n          $scope.update = function(user) {\n            // Example with 2 arguments\n            angular.copy(user, $scope.master);\n          };\n\n          $scope.reset();\n        }]);\n    </file>\n  </example>\n */\nfunction copy(source, destination) {\n  var stackSource = [];\n  var stackDest = [];\n\n  if (destination) {\n    if (isTypedArray(destination) || isArrayBuffer(destination)) {\n      throw ngMinErr('cpta', 'Can\\'t copy! TypedArray destination cannot be mutated.');\n    }\n    if (source === destination) {\n      throw ngMinErr('cpi', 'Can\\'t copy! Source and destination are identical.');\n    }\n\n    // Empty the destination object\n    if (isArray(destination)) {\n      destination.length = 0;\n    } else {\n      forEach(destination, function(value, key) {\n        if (key !== '$$hashKey') {\n          delete destination[key];\n        }\n      });\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n    return copyRecurse(source, destination);\n  }\n\n  return copyElement(source);\n\n  function copyRecurse(source, destination) {\n    var h = destination.$$hashKey;\n    var key;\n    if (isArray(source)) {\n      for (var i = 0, ii = source.length; i < ii; i++) {\n        destination.push(copyElement(source[i]));\n      }\n    } else if (isBlankObject(source)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in source) {\n        destination[key] = copyElement(source[key]);\n      }\n    } else if (source && typeof source.hasOwnProperty === 'function') {\n      // Slow path, which must rely on hasOwnProperty\n      for (key in source) {\n        if (source.hasOwnProperty(key)) {\n          destination[key] = copyElement(source[key]);\n        }\n      }\n    } else {\n      // Slowest path --- hasOwnProperty can't be called as a method\n      for (key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          destination[key] = copyElement(source[key]);\n        }\n      }\n    }\n    setHashKey(destination, h);\n    return destination;\n  }\n\n  function copyElement(source) {\n    // Simple values\n    if (!isObject(source)) {\n      return source;\n    }\n\n    // Already copied values\n    var index = stackSource.indexOf(source);\n    if (index !== -1) {\n      return stackDest[index];\n    }\n\n    if (isWindow(source) || isScope(source)) {\n      throw ngMinErr('cpws',\n        'Can\\'t copy! Making copies of Window or Scope instances is not supported.');\n    }\n\n    var needsRecurse = false;\n    var destination = copyType(source);\n\n    if (destination === undefined) {\n      destination = isArray(source) ? [] : Object.create(getPrototypeOf(source));\n      needsRecurse = true;\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n\n    return needsRecurse\n      ? copyRecurse(source, destination)\n      : destination;\n  }\n\n  function copyType(source) {\n    switch (toString.call(source)) {\n      case '[object Int8Array]':\n      case '[object Int16Array]':\n      case '[object Int32Array]':\n      case '[object Float32Array]':\n      case '[object Float64Array]':\n      case '[object Uint8Array]':\n      case '[object Uint8ClampedArray]':\n      case '[object Uint16Array]':\n      case '[object Uint32Array]':\n        return new source.constructor(copyElement(source.buffer), source.byteOffset, source.length);\n\n      case '[object ArrayBuffer]':\n        // Support: IE10\n        if (!source.slice) {\n          // If we're in this case we know the environment supports ArrayBuffer\n          /* eslint-disable no-undef */\n          var copied = new ArrayBuffer(source.byteLength);\n          new Uint8Array(copied).set(new Uint8Array(source));\n          /* eslint-enable */\n          return copied;\n        }\n        return source.slice(0);\n\n      case '[object Boolean]':\n      case '[object Number]':\n      case '[object String]':\n      case '[object Date]':\n        return new source.constructor(source.valueOf());\n\n      case '[object RegExp]':\n        var re = new RegExp(source.source, source.toString().match(/[^/]*$/)[0]);\n        re.lastIndex = source.lastIndex;\n        return re;\n\n      case '[object Blob]':\n        return new source.constructor([source], {type: source.type});\n    }\n\n    if (isFunction(source.cloneNode)) {\n      return source.cloneNode(true);\n    }\n  }\n}\n\n\n/**\n * @ngdoc function\n * @name angular.equals\n * @module ng\n * @kind function\n *\n * @description\n * Determines if two objects or two values are equivalent. Supports value types, regular\n * expressions, arrays and objects.\n *\n * Two objects or values are considered equivalent if at least one of the following is true:\n *\n * * Both objects or values pass `===` comparison.\n * * Both objects or values are of the same type and all of their properties are equal by\n *   comparing them with `angular.equals`.\n * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)\n * * Both values represent the same regular expression (In JavaScript,\n *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual\n *   representation matches).\n *\n * During a property comparison, properties of `function` type and properties with names\n * that begin with `$` are ignored.\n *\n * Scope and DOMWindow objects are being compared only by identify (`===`).\n *\n * @param {*} o1 Object or value to compare.\n * @param {*} o2 Object or value to compare.\n * @returns {boolean} True if arguments are equal.\n *\n * @example\n   <example module=\"equalsExample\" name=\"equalsExample\">\n     <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate>\n          <h3>User 1</h3>\n          Name: <input type=\"text\" ng-model=\"user1.name\">\n          Age: <input type=\"number\" ng-model=\"user1.age\">\n\n          <h3>User 2</h3>\n          Name: <input type=\"text\" ng-model=\"user2.name\">\n          Age: <input type=\"number\" ng-model=\"user2.age\">\n\n          <div>\n            <br/>\n            <input type=\"button\" value=\"Compare\" ng-click=\"compare()\">\n          </div>\n          User 1: <pre>{{user1 | json}}</pre>\n          User 2: <pre>{{user2 | json}}</pre>\n          Equal: <pre>{{result}}</pre>\n        </form>\n      </div>\n    </file>\n    <file name=\"script.js\">\n        angular.module('equalsExample', []).controller('ExampleController', ['$scope', function($scope) {\n          $scope.user1 = {};\n          $scope.user2 = {};\n          $scope.compare = function() {\n            $scope.result = angular.equals($scope.user1, $scope.user2);\n          };\n        }]);\n    </file>\n  </example>\n */\nfunction equals(o1, o2) {\n  if (o1 === o2) return true;\n  if (o1 === null || o2 === null) return false;\n  // eslint-disable-next-line no-self-compare\n  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN\n  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;\n  if (t1 === t2 && t1 === 'object') {\n    if (isArray(o1)) {\n      if (!isArray(o2)) return false;\n      if ((length = o1.length) === o2.length) {\n        for (key = 0; key < length; key++) {\n          if (!equals(o1[key], o2[key])) return false;\n        }\n        return true;\n      }\n    } else if (isDate(o1)) {\n      if (!isDate(o2)) return false;\n      return equals(o1.getTime(), o2.getTime());\n    } else if (isRegExp(o1)) {\n      if (!isRegExp(o2)) return false;\n      return o1.toString() === o2.toString();\n    } else {\n      if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) ||\n        isArray(o2) || isDate(o2) || isRegExp(o2)) return false;\n      keySet = createMap();\n      for (key in o1) {\n        if (key.charAt(0) === '$' || isFunction(o1[key])) continue;\n        if (!equals(o1[key], o2[key])) return false;\n        keySet[key] = true;\n      }\n      for (key in o2) {\n        if (!(key in keySet) &&\n            key.charAt(0) !== '$' &&\n            isDefined(o2[key]) &&\n            !isFunction(o2[key])) return false;\n      }\n      return true;\n    }\n  }\n  return false;\n}\n\nvar csp = function() {\n  if (!isDefined(csp.rules)) {\n\n\n    var ngCspElement = (window.document.querySelector('[ng-csp]') ||\n                    window.document.querySelector('[data-ng-csp]'));\n\n    if (ngCspElement) {\n      var ngCspAttribute = ngCspElement.getAttribute('ng-csp') ||\n                    ngCspElement.getAttribute('data-ng-csp');\n      csp.rules = {\n        noUnsafeEval: !ngCspAttribute || (ngCspAttribute.indexOf('no-unsafe-eval') !== -1),\n        noInlineStyle: !ngCspAttribute || (ngCspAttribute.indexOf('no-inline-style') !== -1)\n      };\n    } else {\n      csp.rules = {\n        noUnsafeEval: noUnsafeEval(),\n        noInlineStyle: false\n      };\n    }\n  }\n\n  return csp.rules;\n\n  function noUnsafeEval() {\n    try {\n      // eslint-disable-next-line no-new, no-new-func\n      new Function('');\n      return false;\n    } catch (e) {\n      return true;\n    }\n  }\n};\n\n/**\n * @ngdoc directive\n * @module ng\n * @name ngJq\n *\n * @element ANY\n * @param {string=} ngJq the name of the library available under `window`\n * to be used for angular.element\n * @description\n * Use this directive to force the angular.element library.  This should be\n * used to force either jqLite by leaving ng-jq blank or setting the name of\n * the jquery variable under window (eg. jQuery).\n *\n * Since angular looks for this directive when it is loaded (doesn't wait for the\n * DOMContentLoaded event), it must be placed on an element that comes before the script\n * which loads angular. Also, only the first instance of `ng-jq` will be used and all\n * others ignored.\n *\n * @example\n * This example shows how to force jqLite using the `ngJq` directive to the `html` tag.\n ```html\n <!doctype html>\n <html ng-app ng-jq>\n ...\n ...\n </html>\n ```\n * @example\n * This example shows how to use a jQuery based library of a different name.\n * The library name must be available at the top most 'window'.\n ```html\n <!doctype html>\n <html ng-app ng-jq=\"jQueryLib\">\n ...\n ...\n </html>\n ```\n */\nvar jq = function() {\n  if (isDefined(jq.name_)) return jq.name_;\n  var el;\n  var i, ii = ngAttrPrefixes.length, prefix, name;\n  for (i = 0; i < ii; ++i) {\n    prefix = ngAttrPrefixes[i];\n    el = window.document.querySelector('[' + prefix.replace(':', '\\\\:') + 'jq]');\n    if (el) {\n      name = el.getAttribute(prefix + 'jq');\n      break;\n    }\n  }\n\n  return (jq.name_ = name);\n};\n\nfunction concat(array1, array2, index) {\n  return array1.concat(slice.call(array2, index));\n}\n\nfunction sliceArgs(args, startIndex) {\n  return slice.call(args, startIndex || 0);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.bind\n * @module ng\n * @kind function\n *\n * @description\n * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for\n * `fn`). You can supply optional `args` that are prebound to the function. This feature is also\n * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as\n * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).\n *\n * @param {Object} self Context which `fn` should be evaluated in.\n * @param {function()} fn Function to be bound.\n * @param {...*} args Optional arguments to be prebound to the `fn` function call.\n * @returns {function()} Function that wraps the `fn` with all the specified bindings.\n */\nfunction bind(self, fn) {\n  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];\n  if (isFunction(fn) && !(fn instanceof RegExp)) {\n    return curryArgs.length\n      ? function() {\n          return arguments.length\n            ? fn.apply(self, concat(curryArgs, arguments, 0))\n            : fn.apply(self, curryArgs);\n        }\n      : function() {\n          return arguments.length\n            ? fn.apply(self, arguments)\n            : fn.call(self);\n        };\n  } else {\n    // In IE, native methods are not functions so they cannot be bound (note: they don't need to be).\n    return fn;\n  }\n}\n\n\nfunction toJsonReplacer(key, value) {\n  var val = value;\n\n  if (typeof key === 'string' && key.charAt(0) === '$' && key.charAt(1) === '$') {\n    val = undefined;\n  } else if (isWindow(value)) {\n    val = '$WINDOW';\n  } else if (value &&  window.document === value) {\n    val = '$DOCUMENT';\n  } else if (isScope(value)) {\n    val = '$SCOPE';\n  }\n\n  return val;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.toJson\n * @module ng\n * @kind function\n *\n * @description\n * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be\n * stripped since angular uses this notation internally.\n *\n * @param {Object|Array|Date|string|number|boolean} obj Input to be serialized into JSON.\n * @param {boolean|number} [pretty=2] If set to true, the JSON output will contain newlines and whitespace.\n *    If set to an integer, the JSON output will contain that many spaces per indentation.\n * @returns {string|undefined} JSON-ified string representing `obj`.\n * @knownIssue\n *\n * The Safari browser throws a `RangeError` instead of returning `null` when it tries to stringify a `Date`\n * object with an invalid date value. The only reliable way to prevent this is to monkeypatch the\n * `Date.prototype.toJSON` method as follows:\n *\n * ```\n * var _DatetoJSON = Date.prototype.toJSON;\n * Date.prototype.toJSON = function() {\n *   try {\n *     return _DatetoJSON.call(this);\n *   } catch(e) {\n *     if (e instanceof RangeError) {\n *       return null;\n *     }\n *     throw e;\n *   }\n * };\n * ```\n *\n * See https://github.com/angular/angular.js/pull/14221 for more information.\n */\nfunction toJson(obj, pretty) {\n  if (isUndefined(obj)) return undefined;\n  if (!isNumber(pretty)) {\n    pretty = pretty ? 2 : null;\n  }\n  return JSON.stringify(obj, toJsonReplacer, pretty);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.fromJson\n * @module ng\n * @kind function\n *\n * @description\n * Deserializes a JSON string.\n *\n * @param {string} json JSON string to deserialize.\n * @returns {Object|Array|string|number} Deserialized JSON string.\n */\nfunction fromJson(json) {\n  return isString(json)\n      ? JSON.parse(json)\n      : json;\n}\n\n\nvar ALL_COLONS = /:/g;\nfunction timezoneToOffset(timezone, fallback) {\n  // IE/Edge do not \"understand\" colon (`:`) in timezone\n  timezone = timezone.replace(ALL_COLONS, '');\n  var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n  return isNumberNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\n\n\nfunction addDateMinutes(date, minutes) {\n  date = new Date(date.getTime());\n  date.setMinutes(date.getMinutes() + minutes);\n  return date;\n}\n\n\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n  reverse = reverse ? -1 : 1;\n  var dateTimezoneOffset = date.getTimezoneOffset();\n  var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n  return addDateMinutes(date, reverse * (timezoneOffset - dateTimezoneOffset));\n}\n\n\n/**\n * @returns {string} Returns the string representation of the element.\n */\nfunction startingTag(element) {\n  element = jqLite(element).clone();\n  try {\n    // turns out IE does not let you set .html() on elements which\n    // are not allowed to have children. So we just ignore it.\n    element.empty();\n  } catch (e) { /* empty */ }\n  var elemHtml = jqLite('<div>').append(element).html();\n  try {\n    return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :\n        elemHtml.\n          match(/^(<[^>]+>)/)[1].\n          replace(/^<([\\w-]+)/, function(match, nodeName) {return '<' + lowercase(nodeName);});\n  } catch (e) {\n    return lowercase(elemHtml);\n  }\n\n}\n\n\n/////////////////////////////////////////////////\n\n/**\n * Tries to decode the URI component without throwing an exception.\n *\n * @private\n * @param str value potential URI component to check.\n * @returns {boolean} True if `value` can be decoded\n * with the decodeURIComponent function.\n */\nfunction tryDecodeURIComponent(value) {\n  try {\n    return decodeURIComponent(value);\n  } catch (e) {\n    // Ignore any invalid uri component.\n  }\n}\n\n\n/**\n * Parses an escaped url query string into key-value pairs.\n * @returns {Object.<string,boolean|Array>}\n */\nfunction parseKeyValue(/**string*/keyValue) {\n  var obj = {};\n  forEach((keyValue || '').split('&'), function(keyValue) {\n    var splitPoint, key, val;\n    if (keyValue) {\n      key = keyValue = keyValue.replace(/\\+/g,'%20');\n      splitPoint = keyValue.indexOf('=');\n      if (splitPoint !== -1) {\n        key = keyValue.substring(0, splitPoint);\n        val = keyValue.substring(splitPoint + 1);\n      }\n      key = tryDecodeURIComponent(key);\n      if (isDefined(key)) {\n        val = isDefined(val) ? tryDecodeURIComponent(val) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if (isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key],val];\n        }\n      }\n    }\n  });\n  return obj;\n}\n\nfunction toKeyValue(obj) {\n  var parts = [];\n  forEach(obj, function(value, key) {\n    if (isArray(value)) {\n      forEach(value, function(arrayValue) {\n        parts.push(encodeUriQuery(key, true) +\n                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));\n      });\n    } else {\n    parts.push(encodeUriQuery(key, true) +\n               (value === true ? '' : '=' + encodeUriQuery(value, true)));\n    }\n  });\n  return parts.length ? parts.join('&') : '';\n}\n\n\n/**\n * We need our custom method because encodeURIComponent is too aggressive and doesn't follow\n * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path\n * segments:\n *    segment       = *pchar\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriSegment(val) {\n  return encodeUriQuery(val, true).\n             replace(/%26/gi, '&').\n             replace(/%3D/gi, '=').\n             replace(/%2B/gi, '+');\n}\n\n\n/**\n * This method is intended for encoding *key* or *value* parts of query component. We need a custom\n * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be\n * encoded per http://tools.ietf.org/html/rfc3986:\n *    query       = *( pchar / \"/\" / \"?\" )\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriQuery(val, pctEncodeSpaces) {\n  return encodeURIComponent(val).\n             replace(/%40/gi, '@').\n             replace(/%3A/gi, ':').\n             replace(/%24/g, '$').\n             replace(/%2C/gi, ',').\n             replace(/%3B/gi, ';').\n             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));\n}\n\nvar ngAttrPrefixes = ['ng-', 'data-ng-', 'ng:', 'x-ng-'];\n\nfunction getNgAttribute(element, ngAttr) {\n  var attr, i, ii = ngAttrPrefixes.length;\n  for (i = 0; i < ii; ++i) {\n    attr = ngAttrPrefixes[i] + ngAttr;\n    if (isString(attr = element.getAttribute(attr))) {\n      return attr;\n    }\n  }\n  return null;\n}\n\nfunction allowAutoBootstrap(document) {\n  var script = document.currentScript;\n  var src = script && script.getAttribute('src');\n\n  if (!src) {\n    return true;\n  }\n\n  var link = document.createElement('a');\n  link.href = src;\n\n  if (document.location.origin === link.origin) {\n    // Same-origin resources are always allowed, even for non-whitelisted schemes.\n    return true;\n  }\n  // Disabled bootstrapping unless angular.js was loaded from a known scheme used on the web.\n  // This is to prevent angular.js bundled with browser extensions from being used to bypass the\n  // content security policy in web pages and other browser extensions.\n  switch (link.protocol) {\n    case 'http:':\n    case 'https:':\n    case 'ftp:':\n    case 'blob:':\n    case 'file:':\n    case 'data:':\n      return true;\n    default:\n      return false;\n  }\n}\n\n// Cached as it has to run during loading so that document.currentScript is available.\nvar isAutoBootstrapAllowed = allowAutoBootstrap(window.document);\n\n/**\n * @ngdoc directive\n * @name ngApp\n * @module ng\n *\n * @element ANY\n * @param {angular.Module} ngApp an optional application\n *   {@link angular.module module} name to load.\n * @param {boolean=} ngStrictDi if this attribute is present on the app element, the injector will be\n *   created in \"strict-di\" mode. This means that the application will fail to invoke functions which\n *   do not use explicit function annotation (and are thus unsuitable for minification), as described\n *   in {@link guide/di the Dependency Injection guide}, and useful debugging info will assist in\n *   tracking down the root of these bugs.\n *\n * @description\n *\n * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive\n * designates the **root element** of the application and is typically placed near the root element\n * of the page - e.g. on the `<body>` or `<html>` tags.\n *\n * There are a few things to keep in mind when using `ngApp`:\n * - only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`\n *   found in the document will be used to define the root element to auto-bootstrap as an\n *   application. To run multiple applications in an HTML document you must manually bootstrap them using\n *   {@link angular.bootstrap} instead.\n * - AngularJS applications cannot be nested within each other.\n * - Do not use a directive that uses {@link ng.$compile#transclusion transclusion} on the same element as `ngApp`.\n *   This includes directives such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and\n *   {@link ngRoute.ngView `ngView`}.\n *   Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n *   causing animations to stop working and making the injector inaccessible from outside the app.\n *\n * You can specify an **AngularJS module** to be used as the root module for the application.  This\n * module will be loaded into the {@link auto.$injector} when the application is bootstrapped. It\n * should contain the application code needed or have dependencies on other modules that will\n * contain the code. See {@link angular.module} for more information.\n *\n * In the example below if the `ngApp` directive were not placed on the `html` element then the\n * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`\n * would not be resolved to `3`.\n *\n * `ngApp` is the easiest, and most common way to bootstrap an application.\n *\n <example module=\"ngAppDemo\" name=\"ng-app\">\n   <file name=\"index.html\">\n   <div ng-controller=\"ngAppDemoController\">\n     I can add: {{a}} + {{b}} =  {{ a+b }}\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {\n     $scope.a = 1;\n     $scope.b = 2;\n   });\n   </file>\n </example>\n *\n * Using `ngStrictDi`, you would see something like this:\n *\n <example ng-app-included=\"true\" name=\"strict-di\">\n   <file name=\"index.html\">\n   <div ng-app=\"ngAppStrictDemo\" ng-strict-di>\n       <div ng-controller=\"GoodController1\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style (see\n              script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"GoodController2\">\n           Name: <input ng-model=\"name\"><br />\n           Hello, {{name}}!\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style\n              (see script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"BadController\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>The controller could not be instantiated, due to relying\n              on automatic function annotations (which are disabled in\n              strict mode). As such, the content of this section is not\n              interpolated, and there should be an error in your web console.\n           </p>\n       </div>\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppStrictDemo', [])\n     // BadController will fail to instantiate, due to relying on automatic function annotation,\n     // rather than an explicit annotation\n     .controller('BadController', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     })\n     // Unlike BadController, GoodController1 and GoodController2 will not fail to be instantiated,\n     // due to using explicit annotations using the array style and $inject property, respectively.\n     .controller('GoodController1', ['$scope', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     }])\n     .controller('GoodController2', GoodController2);\n     function GoodController2($scope) {\n       $scope.name = 'World';\n     }\n     GoodController2.$inject = ['$scope'];\n   </file>\n   <file name=\"style.css\">\n   div[ng-controller] {\n       margin-bottom: 1em;\n       -webkit-border-radius: 4px;\n       border-radius: 4px;\n       border: 1px solid;\n       padding: .5em;\n   }\n   div[ng-controller^=Good] {\n       border-color: #d6e9c6;\n       background-color: #dff0d8;\n       color: #3c763d;\n   }\n   div[ng-controller^=Bad] {\n       border-color: #ebccd1;\n       background-color: #f2dede;\n       color: #a94442;\n       margin-bottom: 0;\n   }\n   </file>\n </example>\n */\nfunction angularInit(element, bootstrap) {\n  var appElement,\n      module,\n      config = {};\n\n  // The element `element` has priority over any other element.\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n\n    if (!appElement && element.hasAttribute && element.hasAttribute(name)) {\n      appElement = element;\n      module = element.getAttribute(name);\n    }\n  });\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n    var candidate;\n\n    if (!appElement && (candidate = element.querySelector('[' + name.replace(':', '\\\\:') + ']'))) {\n      appElement = candidate;\n      module = candidate.getAttribute(name);\n    }\n  });\n  if (appElement) {\n    if (!isAutoBootstrapAllowed) {\n      window.console.error('Angular: disabling automatic bootstrap. <script> protocol indicates ' +\n          'an extension, document.location.href does not match.');\n      return;\n    }\n    config.strictDi = getNgAttribute(appElement, 'strict-di') !== null;\n    bootstrap(appElement, module ? [module] : [], config);\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.bootstrap\n * @module ng\n * @description\n * Use this function to manually start up angular application.\n *\n * For more information, see the {@link guide/bootstrap Bootstrap guide}.\n *\n * Angular will detect if it has been loaded into the browser more than once and only allow the\n * first loaded script to be bootstrapped and will report a warning to the browser console for\n * each of the subsequent scripts. This prevents strange results in applications, where otherwise\n * multiple instances of Angular try to work on the DOM.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Protractor based end-to-end tests cannot use this function to bootstrap manually.\n * They must use {@link ng.directive:ngApp ngApp}.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Do not bootstrap the app on an element with a directive that uses {@link ng.$compile#transclusion transclusion},\n * such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and {@link ngRoute.ngView `ngView`}.\n * Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n * causing animations to stop working and making the injector inaccessible from outside the app.\n * </div>\n *\n * ```html\n * <!doctype html>\n * <html>\n * <body>\n * <div ng-controller=\"WelcomeController\">\n *   {{greeting}}\n * </div>\n *\n * <script src=\"angular.js\"></script>\n * <script>\n *   var app = angular.module('demo', [])\n *   .controller('WelcomeController', function($scope) {\n *       $scope.greeting = 'Welcome!';\n *   });\n *   angular.bootstrap(document, ['demo']);\n * </script>\n * </body>\n * </html>\n * ```\n *\n * @param {DOMElement} element DOM element which is the root of angular application.\n * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n * @param {Object=} config an object for defining configuration options for the application. The\n *     following keys are supported:\n *\n * * `strictDi` - disable automatic function annotation for the application. This is meant to\n *   assist in finding bugs which break minified code. Defaults to `false`.\n *\n * @returns {auto.$injector} Returns the newly created injector for this app.\n */\nfunction bootstrap(element, modules, config) {\n  if (!isObject(config)) config = {};\n  var defaultConfig = {\n    strictDi: false\n  };\n  config = extend(defaultConfig, config);\n  var doBootstrap = function() {\n    element = jqLite(element);\n\n    if (element.injector()) {\n      var tag = (element[0] === window.document) ? 'document' : startingTag(element);\n      // Encode angle brackets to prevent input from being sanitized to empty string #8683.\n      throw ngMinErr(\n          'btstrpd',\n          'App already bootstrapped with this element \\'{0}\\'',\n          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));\n    }\n\n    modules = modules || [];\n    modules.unshift(['$provide', function($provide) {\n      $provide.value('$rootElement', element);\n    }]);\n\n    if (config.debugInfoEnabled) {\n      // Pushing so that this overrides `debugInfoEnabled` setting defined in user's `modules`.\n      modules.push(['$compileProvider', function($compileProvider) {\n        $compileProvider.debugInfoEnabled(true);\n      }]);\n    }\n\n    modules.unshift('ng');\n    var injector = createInjector(modules, config.strictDi);\n    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector',\n       function bootstrapApply(scope, element, compile, injector) {\n        scope.$apply(function() {\n          element.data('$injector', injector);\n          compile(element)(scope);\n        });\n      }]\n    );\n    return injector;\n  };\n\n  var NG_ENABLE_DEBUG_INFO = /^NG_ENABLE_DEBUG_INFO!/;\n  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;\n\n  if (window && NG_ENABLE_DEBUG_INFO.test(window.name)) {\n    config.debugInfoEnabled = true;\n    window.name = window.name.replace(NG_ENABLE_DEBUG_INFO, '');\n  }\n\n  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {\n    return doBootstrap();\n  }\n\n  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');\n  angular.resumeBootstrap = function(extraModules) {\n    forEach(extraModules, function(module) {\n      modules.push(module);\n    });\n    return doBootstrap();\n  };\n\n  if (isFunction(angular.resumeDeferredBootstrap)) {\n    angular.resumeDeferredBootstrap();\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.reloadWithDebugInfo\n * @module ng\n * @description\n * Use this function to reload the current application with debug information turned on.\n * This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.\n *\n * See {@link ng.$compileProvider#debugInfoEnabled} for more.\n */\nfunction reloadWithDebugInfo() {\n  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;\n  window.location.reload();\n}\n\n/**\n * @name angular.getTestability\n * @module ng\n * @description\n * Get the testability service for the instance of Angular on the given\n * element.\n * @param {DOMElement} element DOM element which is the root of angular application.\n */\nfunction getTestability(rootElement) {\n  var injector = angular.element(rootElement).injector();\n  if (!injector) {\n    throw ngMinErr('test',\n      'no injector found for element argument to getTestability');\n  }\n  return injector.get('$$testability');\n}\n\nvar SNAKE_CASE_REGEXP = /[A-Z]/g;\nfunction snake_case(name, separator) {\n  separator = separator || '_';\n  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n    return (pos ? separator : '') + letter.toLowerCase();\n  });\n}\n\nvar bindJQueryFired = false;\nfunction bindJQuery() {\n  var originalCleanData;\n\n  if (bindJQueryFired) {\n    return;\n  }\n\n  // bind to jQuery if present;\n  var jqName = jq();\n  jQuery = isUndefined(jqName) ? window.jQuery :   // use jQuery (if present)\n           !jqName             ? undefined     :   // use jqLite\n                                 window[jqName];   // use jQuery specified by `ngJq`\n\n  // Use jQuery if it exists with proper functionality, otherwise default to us.\n  // Angular 1.2+ requires jQuery 1.7+ for on()/off() support.\n  // Angular 1.3+ technically requires at least jQuery 2.1+ but it may work with older\n  // versions. It will not work for sure with jQuery <1.7, though.\n  if (jQuery && jQuery.fn.on) {\n    jqLite = jQuery;\n    extend(jQuery.fn, {\n      scope: JQLitePrototype.scope,\n      isolateScope: JQLitePrototype.isolateScope,\n      controller: JQLitePrototype.controller,\n      injector: JQLitePrototype.injector,\n      inheritedData: JQLitePrototype.inheritedData\n    });\n\n    // All nodes removed from the DOM via various jQuery APIs like .remove()\n    // are passed through jQuery.cleanData. Monkey-patch this method to fire\n    // the $destroy event on all removed nodes.\n    originalCleanData = jQuery.cleanData;\n    jQuery.cleanData = function(elems) {\n      var events;\n      for (var i = 0, elem; (elem = elems[i]) != null; i++) {\n        events = jQuery._data(elem, 'events');\n        if (events && events.$destroy) {\n          jQuery(elem).triggerHandler('$destroy');\n        }\n      }\n      originalCleanData(elems);\n    };\n  } else {\n    jqLite = JQLite;\n  }\n\n  angular.element = jqLite;\n\n  // Prevent double-proxying.\n  bindJQueryFired = true;\n}\n\n/**\n * throw error if the argument is falsy.\n */\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction assertArgFn(arg, name, acceptArrayAnnotation) {\n  if (acceptArrayAnnotation && isArray(arg)) {\n      arg = arg[arg.length - 1];\n  }\n\n  assertArg(isFunction(arg), name, 'not a function, got ' +\n      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));\n  return arg;\n}\n\n/**\n * throw error if the name given is hasOwnProperty\n * @param  {String} name    the name to test\n * @param  {String} context the context in which the name is used, such as module or directive\n */\nfunction assertNotHasOwnProperty(name, context) {\n  if (name === 'hasOwnProperty') {\n    throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n  }\n}\n\n/**\n * Return the value accessible from the object by path. Any undefined traversals are ignored\n * @param {Object} obj starting object\n * @param {String} path path to traverse\n * @param {boolean} [bindFnToScope=true]\n * @returns {Object} value as accessible by path\n */\n//TODO(misko): this function needs to be removed\nfunction getter(obj, path, bindFnToScope) {\n  if (!path) return obj;\n  var keys = path.split('.');\n  var key;\n  var lastInstance = obj;\n  var len = keys.length;\n\n  for (var i = 0; i < len; i++) {\n    key = keys[i];\n    if (obj) {\n      obj = (lastInstance = obj)[key];\n    }\n  }\n  if (!bindFnToScope && isFunction(obj)) {\n    return bind(lastInstance, obj);\n  }\n  return obj;\n}\n\n/**\n * Return the DOM siblings between the first and last node in the given array.\n * @param {Array} array like object\n * @returns {Array} the inputted object or a jqLite collection containing the nodes\n */\nfunction getBlockNodes(nodes) {\n  // TODO(perf): update `nodes` instead of creating a new object?\n  var node = nodes[0];\n  var endNode = nodes[nodes.length - 1];\n  var blockNodes;\n\n  for (var i = 1; node !== endNode && (node = node.nextSibling); i++) {\n    if (blockNodes || nodes[i] !== node) {\n      if (!blockNodes) {\n        blockNodes = jqLite(slice.call(nodes, 0, i));\n      }\n      blockNodes.push(node);\n    }\n  }\n\n  return blockNodes || nodes;\n}\n\n\n/**\n * Creates a new object without a prototype. This object is useful for lookup without having to\n * guard against prototypically inherited properties via hasOwnProperty.\n *\n * Related micro-benchmarks:\n * - http://jsperf.com/object-create2\n * - http://jsperf.com/proto-map-lookup/2\n * - http://jsperf.com/for-in-vs-object-keys2\n *\n * @returns {Object}\n */\nfunction createMap() {\n  return Object.create(null);\n}\n\nvar NODE_TYPE_ELEMENT = 1;\nvar NODE_TYPE_ATTRIBUTE = 2;\nvar NODE_TYPE_TEXT = 3;\nvar NODE_TYPE_COMMENT = 8;\nvar NODE_TYPE_DOCUMENT = 9;\nvar NODE_TYPE_DOCUMENT_FRAGMENT = 11;\n\n/**\n * @ngdoc type\n * @name angular.Module\n * @module ng\n * @description\n *\n * Interface for configuring angular {@link angular.module modules}.\n */\n\nfunction setupModuleLoader(window) {\n\n  var $injectorMinErr = minErr('$injector');\n  var ngMinErr = minErr('ng');\n\n  function ensure(obj, name, factory) {\n    return obj[name] || (obj[name] = factory());\n  }\n\n  var angular = ensure(window, 'angular', Object);\n\n  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap\n  angular.$$minErr = angular.$$minErr || minErr;\n\n  return ensure(angular, 'module', function() {\n    /** @type {Object.<string, angular.Module>} */\n    var modules = {};\n\n    /**\n     * @ngdoc function\n     * @name angular.module\n     * @module ng\n     * @description\n     *\n     * The `angular.module` is a global place for creating, registering and retrieving Angular\n     * modules.\n     * All modules (angular core or 3rd party) that should be available to an application must be\n     * registered using this mechanism.\n     *\n     * Passing one argument retrieves an existing {@link angular.Module},\n     * whereas passing more than one argument creates a new {@link angular.Module}\n     *\n     *\n     * # Module\n     *\n     * A module is a collection of services, directives, controllers, filters, and configuration information.\n     * `angular.module` is used to configure the {@link auto.$injector $injector}.\n     *\n     * ```js\n     * // Create a new module\n     * var myModule = angular.module('myModule', []);\n     *\n     * // register a new service\n     * myModule.value('appName', 'MyCoolApp');\n     *\n     * // configure existing services inside initialization blocks.\n     * myModule.config(['$locationProvider', function($locationProvider) {\n     *   // Configure existing providers\n     *   $locationProvider.hashPrefix('!');\n     * }]);\n     * ```\n     *\n     * Then you can create an injector and load your modules like this:\n     *\n     * ```js\n     * var injector = angular.injector(['ng', 'myModule'])\n     * ```\n     *\n     * However it's more likely that you'll just use\n     * {@link ng.directive:ngApp ngApp} or\n     * {@link angular.bootstrap} to simplify this process for you.\n     *\n     * @param {!string} name The name of the module to create or retrieve.\n     * @param {!Array.<string>=} requires If specified then new module is being created. If\n     *        unspecified then the module is being retrieved for further configuration.\n     * @param {Function=} configFn Optional configuration function for the module. Same as\n     *        {@link angular.Module#config Module#config()}.\n     * @returns {angular.Module} new module with the {@link angular.Module} api.\n     */\n    return function module(name, requires, configFn) {\n      var assertNotHasOwnProperty = function(name, context) {\n        if (name === 'hasOwnProperty') {\n          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n        }\n      };\n\n      assertNotHasOwnProperty(name, 'module');\n      if (requires && modules.hasOwnProperty(name)) {\n        modules[name] = null;\n      }\n      return ensure(modules, name, function() {\n        if (!requires) {\n          throw $injectorMinErr('nomod', 'Module \\'{0}\\' is not available! You either misspelled ' +\n             'the module name or forgot to load it. If registering a module ensure that you ' +\n             'specify the dependencies as the second argument.', name);\n        }\n\n        /** @type {!Array.<Array.<*>>} */\n        var invokeQueue = [];\n\n        /** @type {!Array.<Function>} */\n        var configBlocks = [];\n\n        /** @type {!Array.<Function>} */\n        var runBlocks = [];\n\n        var config = invokeLater('$injector', 'invoke', 'push', configBlocks);\n\n        /** @type {angular.Module} */\n        var moduleInstance = {\n          // Private state\n          _invokeQueue: invokeQueue,\n          _configBlocks: configBlocks,\n          _runBlocks: runBlocks,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#requires\n           * @module ng\n           *\n           * @description\n           * Holds the list of modules which the injector will load before the current module is\n           * loaded.\n           */\n          requires: requires,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#name\n           * @module ng\n           *\n           * @description\n           * Name of the module.\n           */\n          name: name,\n\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#provider\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerType Construction function for creating new instance of the\n           *                                service.\n           * @description\n           * See {@link auto.$provide#provider $provide.provider()}.\n           */\n          provider: invokeLaterAndSetModuleName('$provide', 'provider'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#factory\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerFunction Function for creating new instance of the service.\n           * @description\n           * See {@link auto.$provide#factory $provide.factory()}.\n           */\n          factory: invokeLaterAndSetModuleName('$provide', 'factory'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#service\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} constructor A constructor function that will be instantiated.\n           * @description\n           * See {@link auto.$provide#service $provide.service()}.\n           */\n          service: invokeLaterAndSetModuleName('$provide', 'service'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#value\n           * @module ng\n           * @param {string} name service name\n           * @param {*} object Service instance object.\n           * @description\n           * See {@link auto.$provide#value $provide.value()}.\n           */\n          value: invokeLater('$provide', 'value'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#constant\n           * @module ng\n           * @param {string} name constant name\n           * @param {*} object Constant value.\n           * @description\n           * Because the constants are fixed, they get applied before other provide methods.\n           * See {@link auto.$provide#constant $provide.constant()}.\n           */\n          constant: invokeLater('$provide', 'constant', 'unshift'),\n\n           /**\n           * @ngdoc method\n           * @name angular.Module#decorator\n           * @module ng\n           * @param {string} name The name of the service to decorate.\n           * @param {Function} decorFn This function will be invoked when the service needs to be\n           *                           instantiated and should return the decorated service instance.\n           * @description\n           * See {@link auto.$provide#decorator $provide.decorator()}.\n           */\n          decorator: invokeLaterAndSetModuleName('$provide', 'decorator'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#animation\n           * @module ng\n           * @param {string} name animation name\n           * @param {Function} animationFactory Factory function for creating new instance of an\n           *                                    animation.\n           * @description\n           *\n           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.\n           *\n           *\n           * Defines an animation hook that can be later used with\n           * {@link $animate $animate} service and directives that use this service.\n           *\n           * ```js\n           * module.animation('.animation-name', function($inject1, $inject2) {\n           *   return {\n           *     eventName : function(element, done) {\n           *       //code to run the animation\n           *       //once complete, then run done()\n           *       return function cancellationFunction(element) {\n           *         //code to cancel the animation\n           *       }\n           *     }\n           *   }\n           * })\n           * ```\n           *\n           * See {@link ng.$animateProvider#register $animateProvider.register()} and\n           * {@link ngAnimate ngAnimate module} for more information.\n           */\n          animation: invokeLaterAndSetModuleName('$animateProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#filter\n           * @module ng\n           * @param {string} name Filter name - this must be a valid angular expression identifier\n           * @param {Function} filterFactory Factory function for creating new instance of filter.\n           * @description\n           * See {@link ng.$filterProvider#register $filterProvider.register()}.\n           *\n           * <div class=\"alert alert-warning\">\n           * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n           * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n           * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n           * (`myapp_subsection_filterx`).\n           * </div>\n           */\n          filter: invokeLaterAndSetModuleName('$filterProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#controller\n           * @module ng\n           * @param {string|Object} name Controller name, or an object map of controllers where the\n           *    keys are the names and the values are the constructors.\n           * @param {Function} constructor Controller constructor function.\n           * @description\n           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.\n           */\n          controller: invokeLaterAndSetModuleName('$controllerProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#directive\n           * @module ng\n           * @param {string|Object} name Directive name, or an object map of directives where the\n           *    keys are the names and the values are the factories.\n           * @param {Function} directiveFactory Factory function for creating new instance of\n           * directives.\n           * @description\n           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.\n           */\n          directive: invokeLaterAndSetModuleName('$compileProvider', 'directive'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#component\n           * @module ng\n           * @param {string} name Name of the component in camel-case (i.e. myComp which will match as my-comp)\n           * @param {Object} options Component definition object (a simplified\n           *    {@link ng.$compile#directive-definition-object directive definition object})\n           *\n           * @description\n           * See {@link ng.$compileProvider#component $compileProvider.component()}.\n           */\n          component: invokeLaterAndSetModuleName('$compileProvider', 'component'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#config\n           * @module ng\n           * @param {Function} configFn Execute this function on module load. Useful for service\n           *    configuration.\n           * @description\n           * Use this method to register work which needs to be performed on module loading.\n           * For more about how to configure services, see\n           * {@link providers#provider-recipe Provider Recipe}.\n           */\n          config: config,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#run\n           * @module ng\n           * @param {Function} initializationFn Execute this function after injector creation.\n           *    Useful for application initialization.\n           * @description\n           * Use this method to register work which should be performed when the injector is done\n           * loading all modules.\n           */\n          run: function(block) {\n            runBlocks.push(block);\n            return this;\n          }\n        };\n\n        if (configFn) {\n          config(configFn);\n        }\n\n        return moduleInstance;\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @param {String=} insertMethod\n         * @returns {angular.Module}\n         */\n        function invokeLater(provider, method, insertMethod, queue) {\n          if (!queue) queue = invokeQueue;\n          return function() {\n            queue[insertMethod || 'push']([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @returns {angular.Module}\n         */\n        function invokeLaterAndSetModuleName(provider, method) {\n          return function(recipeName, factoryFunction) {\n            if (factoryFunction && isFunction(factoryFunction)) factoryFunction.$$moduleName = name;\n            invokeQueue.push([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n      });\n    };\n  });\n\n}\n\n/* global shallowCopy: true */\n\n/**\n * Creates a shallow copy of an object, an array or a primitive.\n *\n * Assumes that there are no proto properties for objects.\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for (var i = 0, ii = src.length; i < ii; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n/* global toDebugString: true */\n\nfunction serializeObject(obj) {\n  var seen = [];\n\n  return JSON.stringify(obj, function(key, val) {\n    val = toJsonReplacer(key, val);\n    if (isObject(val)) {\n\n      if (seen.indexOf(val) >= 0) return '...';\n\n      seen.push(val);\n    }\n    return val;\n  });\n}\n\nfunction toDebugString(obj) {\n  if (typeof obj === 'function') {\n    return obj.toString().replace(/ \\{[\\s\\S]*$/, '');\n  } else if (isUndefined(obj)) {\n    return 'undefined';\n  } else if (typeof obj !== 'string') {\n    return serializeObject(obj);\n  }\n  return obj;\n}\n\n/* global angularModule: true,\n  version: true,\n\n  $CompileProvider,\n\n  htmlAnchorDirective,\n  inputDirective,\n  inputDirective,\n  formDirective,\n  scriptDirective,\n  selectDirective,\n  optionDirective,\n  ngBindDirective,\n  ngBindHtmlDirective,\n  ngBindTemplateDirective,\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective,\n  ngCloakDirective,\n  ngControllerDirective,\n  ngFormDirective,\n  ngHideDirective,\n  ngIfDirective,\n  ngIncludeDirective,\n  ngIncludeFillContentDirective,\n  ngInitDirective,\n  ngNonBindableDirective,\n  ngPluralizeDirective,\n  ngRepeatDirective,\n  ngShowDirective,\n  ngStyleDirective,\n  ngSwitchDirective,\n  ngSwitchWhenDirective,\n  ngSwitchDefaultDirective,\n  ngOptionsDirective,\n  ngTranscludeDirective,\n  ngModelDirective,\n  ngListDirective,\n  ngChangeDirective,\n  patternDirective,\n  patternDirective,\n  requiredDirective,\n  requiredDirective,\n  minlengthDirective,\n  minlengthDirective,\n  maxlengthDirective,\n  maxlengthDirective,\n  ngValueDirective,\n  ngModelOptionsDirective,\n  ngAttributeAliasDirectives,\n  ngEventDirectives,\n\n  $AnchorScrollProvider,\n  $AnimateProvider,\n  $CoreAnimateCssProvider,\n  $$CoreAnimateJsProvider,\n  $$CoreAnimateQueueProvider,\n  $$AnimateRunnerFactoryProvider,\n  $$AnimateAsyncRunFactoryProvider,\n  $BrowserProvider,\n  $CacheFactoryProvider,\n  $ControllerProvider,\n  $DateProvider,\n  $DocumentProvider,\n  $ExceptionHandlerProvider,\n  $FilterProvider,\n  $$ForceReflowProvider,\n  $InterpolateProvider,\n  $IntervalProvider,\n  $$HashMapProvider,\n  $HttpProvider,\n  $HttpParamSerializerProvider,\n  $HttpParamSerializerJQLikeProvider,\n  $HttpBackendProvider,\n  $xhrFactoryProvider,\n  $jsonpCallbacksProvider,\n  $LocationProvider,\n  $LogProvider,\n  $ParseProvider,\n  $RootScopeProvider,\n  $QProvider,\n  $$QProvider,\n  $$SanitizeUriProvider,\n  $SceProvider,\n  $SceDelegateProvider,\n  $SnifferProvider,\n  $TemplateCacheProvider,\n  $TemplateRequestProvider,\n  $$TestabilityProvider,\n  $TimeoutProvider,\n  $$RAFProvider,\n  $WindowProvider,\n  $$jqLiteProvider,\n  $$CookieReaderProvider\n*/\n\n\n/**\n * @ngdoc object\n * @name angular.version\n * @module ng\n * @description\n * An object that contains information about the current AngularJS version.\n *\n * This object has the following properties:\n *\n * - `full` – `{string}` – Full version string, such as \"0.9.18\".\n * - `major` – `{number}` – Major version number, such as \"0\".\n * - `minor` – `{number}` – Minor version number, such as \"9\".\n * - `dot` – `{number}` – Dot version number, such as \"18\".\n * - `codeName` – `{string}` – Code name of the release, such as \"jiggling-armfat\".\n */\nvar version = {\n  // These placeholder strings will be replaced by grunt's `build` task.\n  // They need to be double- or single-quoted.\n  full: '1.5.11',\n  major: 1,\n  minor: 5,\n  dot: 11,\n  codeName: 'princely-quest'\n};\n\n\nfunction publishExternalAPI(angular) {\n  extend(angular, {\n    'bootstrap': bootstrap,\n    'copy': copy,\n    'extend': extend,\n    'merge': merge,\n    'equals': equals,\n    'element': jqLite,\n    'forEach': forEach,\n    'injector': createInjector,\n    'noop': noop,\n    'bind': bind,\n    'toJson': toJson,\n    'fromJson': fromJson,\n    'identity': identity,\n    'isUndefined': isUndefined,\n    'isDefined': isDefined,\n    'isString': isString,\n    'isFunction': isFunction,\n    'isObject': isObject,\n    'isNumber': isNumber,\n    'isElement': isElement,\n    'isArray': isArray,\n    'version': version,\n    'isDate': isDate,\n    'lowercase': lowercase,\n    'uppercase': uppercase,\n    'callbacks': {$$counter: 0},\n    'getTestability': getTestability,\n    '$$minErr': minErr,\n    '$$csp': csp,\n    'reloadWithDebugInfo': reloadWithDebugInfo\n  });\n\n  angularModule = setupModuleLoader(window);\n\n  angularModule('ng', ['ngLocale'], ['$provide',\n    function ngModule($provide) {\n      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.\n      $provide.provider({\n        $$sanitizeUri: $$SanitizeUriProvider\n      });\n      $provide.provider('$compile', $CompileProvider).\n        directive({\n            a: htmlAnchorDirective,\n            input: inputDirective,\n            textarea: inputDirective,\n            form: formDirective,\n            script: scriptDirective,\n            select: selectDirective,\n            option: optionDirective,\n            ngBind: ngBindDirective,\n            ngBindHtml: ngBindHtmlDirective,\n            ngBindTemplate: ngBindTemplateDirective,\n            ngClass: ngClassDirective,\n            ngClassEven: ngClassEvenDirective,\n            ngClassOdd: ngClassOddDirective,\n            ngCloak: ngCloakDirective,\n            ngController: ngControllerDirective,\n            ngForm: ngFormDirective,\n            ngHide: ngHideDirective,\n            ngIf: ngIfDirective,\n            ngInclude: ngIncludeDirective,\n            ngInit: ngInitDirective,\n            ngNonBindable: ngNonBindableDirective,\n            ngPluralize: ngPluralizeDirective,\n            ngRepeat: ngRepeatDirective,\n            ngShow: ngShowDirective,\n            ngStyle: ngStyleDirective,\n            ngSwitch: ngSwitchDirective,\n            ngSwitchWhen: ngSwitchWhenDirective,\n            ngSwitchDefault: ngSwitchDefaultDirective,\n            ngOptions: ngOptionsDirective,\n            ngTransclude: ngTranscludeDirective,\n            ngModel: ngModelDirective,\n            ngList: ngListDirective,\n            ngChange: ngChangeDirective,\n            pattern: patternDirective,\n            ngPattern: patternDirective,\n            required: requiredDirective,\n            ngRequired: requiredDirective,\n            minlength: minlengthDirective,\n            ngMinlength: minlengthDirective,\n            maxlength: maxlengthDirective,\n            ngMaxlength: maxlengthDirective,\n            ngValue: ngValueDirective,\n            ngModelOptions: ngModelOptionsDirective\n        }).\n        directive({\n          ngInclude: ngIncludeFillContentDirective\n        }).\n        directive(ngAttributeAliasDirectives).\n        directive(ngEventDirectives);\n      $provide.provider({\n        $anchorScroll: $AnchorScrollProvider,\n        $animate: $AnimateProvider,\n        $animateCss: $CoreAnimateCssProvider,\n        $$animateJs: $$CoreAnimateJsProvider,\n        $$animateQueue: $$CoreAnimateQueueProvider,\n        $$AnimateRunner: $$AnimateRunnerFactoryProvider,\n        $$animateAsyncRun: $$AnimateAsyncRunFactoryProvider,\n        $browser: $BrowserProvider,\n        $cacheFactory: $CacheFactoryProvider,\n        $controller: $ControllerProvider,\n        $document: $DocumentProvider,\n        $exceptionHandler: $ExceptionHandlerProvider,\n        $filter: $FilterProvider,\n        $$forceReflow: $$ForceReflowProvider,\n        $interpolate: $InterpolateProvider,\n        $interval: $IntervalProvider,\n        $http: $HttpProvider,\n        $httpParamSerializer: $HttpParamSerializerProvider,\n        $httpParamSerializerJQLike: $HttpParamSerializerJQLikeProvider,\n        $httpBackend: $HttpBackendProvider,\n        $xhrFactory: $xhrFactoryProvider,\n        $jsonpCallbacks: $jsonpCallbacksProvider,\n        $location: $LocationProvider,\n        $log: $LogProvider,\n        $parse: $ParseProvider,\n        $rootScope: $RootScopeProvider,\n        $q: $QProvider,\n        $$q: $$QProvider,\n        $sce: $SceProvider,\n        $sceDelegate: $SceDelegateProvider,\n        $sniffer: $SnifferProvider,\n        $templateCache: $TemplateCacheProvider,\n        $templateRequest: $TemplateRequestProvider,\n        $$testability: $$TestabilityProvider,\n        $timeout: $TimeoutProvider,\n        $window: $WindowProvider,\n        $$rAF: $$RAFProvider,\n        $$jqLite: $$jqLiteProvider,\n        $$HashMap: $$HashMapProvider,\n        $$cookieReader: $$CookieReaderProvider\n      });\n    }\n  ]);\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* global JQLitePrototype: true,\n  addEventListenerFn: true,\n  removeEventListenerFn: true,\n  BOOLEAN_ATTR: true,\n  ALIASED_ATTR: true\n*/\n\n//////////////////////////////////\n//JQLite\n//////////////////////////////////\n\n/**\n * @ngdoc function\n * @name angular.element\n * @module ng\n * @kind function\n *\n * @description\n * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.\n *\n * If jQuery is available, `angular.element` is an alias for the\n * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`\n * delegates to Angular's built-in subset of jQuery, called \"jQuery lite\" or **jqLite**.\n *\n * jqLite is a tiny, API-compatible subset of jQuery that allows\n * Angular to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most\n * commonly needed functionality with the goal of having a very small footprint.\n *\n * To use `jQuery`, simply ensure it is loaded before the `angular.js` file. You can also use the\n * {@link ngJq `ngJq`} directive to specify that jqlite should be used over jQuery, or to use a\n * specific version of jQuery if multiple versions exist on the page.\n *\n * <div class=\"alert alert-info\">**Note:** All element references in Angular are always wrapped with jQuery or\n * jqLite (such as the element argument in a directive's compile / link function). They are never raw DOM references.</div>\n *\n * <div class=\"alert alert-warning\">**Note:** Keep in mind that this function will not find elements\n * by tag name / CSS selector. For lookups by tag name, try instead `angular.element(document).find(...)`\n * or `$document.find()`, or use the standard DOM APIs, e.g. `document.querySelectorAll()`.</div>\n *\n * ## Angular's jqLite\n * jqLite provides only the following jQuery methods:\n *\n * - [`addClass()`](http://api.jquery.com/addClass/) - Does not support a function as first argument\n * - [`after()`](http://api.jquery.com/after/)\n * - [`append()`](http://api.jquery.com/append/)\n * - [`attr()`](http://api.jquery.com/attr/) - Does not support functions as parameters\n * - [`bind()`](http://api.jquery.com/bind/) - Does not support namespaces, selectors or eventData\n * - [`children()`](http://api.jquery.com/children/) - Does not support selectors\n * - [`clone()`](http://api.jquery.com/clone/)\n * - [`contents()`](http://api.jquery.com/contents/)\n * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`.\n *   As a setter, does not convert numbers to strings or append 'px', and also does not have automatic property prefixing.\n * - [`data()`](http://api.jquery.com/data/)\n * - [`detach()`](http://api.jquery.com/detach/)\n * - [`empty()`](http://api.jquery.com/empty/)\n * - [`eq()`](http://api.jquery.com/eq/)\n * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name\n * - [`hasClass()`](http://api.jquery.com/hasClass/)\n * - [`html()`](http://api.jquery.com/html/)\n * - [`next()`](http://api.jquery.com/next/) - Does not support selectors\n * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData\n * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces, selectors or event object as parameter\n * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors\n * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors\n * - [`prepend()`](http://api.jquery.com/prepend/)\n * - [`prop()`](http://api.jquery.com/prop/)\n * - [`ready()`](http://api.jquery.com/ready/)\n * - [`remove()`](http://api.jquery.com/remove/)\n * - [`removeAttr()`](http://api.jquery.com/removeAttr/) - Does not support multiple attributes\n * - [`removeClass()`](http://api.jquery.com/removeClass/) - Does not support a function as first argument\n * - [`removeData()`](http://api.jquery.com/removeData/)\n * - [`replaceWith()`](http://api.jquery.com/replaceWith/)\n * - [`text()`](http://api.jquery.com/text/)\n * - [`toggleClass()`](http://api.jquery.com/toggleClass/) - Does not support a function as first argument\n * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers\n * - [`unbind()`](http://api.jquery.com/unbind/) - Does not support namespaces or event object as parameter\n * - [`val()`](http://api.jquery.com/val/)\n * - [`wrap()`](http://api.jquery.com/wrap/)\n *\n * ## jQuery/jqLite Extras\n * Angular also provides the following additional methods and events to both jQuery and jqLite:\n *\n * ### Events\n * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event\n *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM\n *    element before it is removed.\n *\n * ### Methods\n * - `controller(name)` - retrieves the controller of the current element or its parent. By default\n *   retrieves controller associated with the `ngController` directive. If `name` is provided as\n *   camelCase directive name, then the controller for this directive will be retrieved (e.g.\n *   `'ngModel'`).\n * - `injector()` - retrieves the injector of the current element or its parent.\n * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current\n *   element or its parent. Requires {@link guide/production#disabling-debug-data Debug Data} to\n *   be enabled.\n * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the\n *   current element. This getter should be used only on elements that contain a directive which starts a new isolate\n *   scope. Calling `scope()` on this element always returns the original non-isolate scope.\n *   Requires {@link guide/production#disabling-debug-data Debug Data} to be enabled.\n * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top\n *   parent element is reached.\n *\n * @knownIssue You cannot spy on `angular.element` if you are using Jasmine version 1.x. See\n * https://github.com/angular/angular.js/issues/14251 for more information.\n *\n * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.\n * @returns {Object} jQuery object.\n */\n\nJQLite.expando = 'ng339';\n\nvar jqCache = JQLite.cache = {},\n    jqId = 1,\n    addEventListenerFn = function(element, type, fn) {\n      element.addEventListener(type, fn, false);\n    },\n    removeEventListenerFn = function(element, type, fn) {\n      element.removeEventListener(type, fn, false);\n    };\n\n/*\n * !!! This is an undocumented \"private\" function !!!\n */\nJQLite._data = function(node) {\n  //jQuery always returns an object on cache miss\n  return this.cache[node[this.expando]] || {};\n};\n\nfunction jqNextId() { return ++jqId; }\n\n\nvar SPECIAL_CHARS_REGEXP = /([:\\-_]+(.))/g;\nvar MOZ_HACK_REGEXP = /^moz([A-Z])/;\nvar MOUSE_EVENT_MAP = { mouseleave: 'mouseout', mouseenter: 'mouseover' };\nvar jqLiteMinErr = minErr('jqLite');\n\n/**\n * Converts snake_case to camelCase.\n * Also there is special case for Moz prefix starting with upper case letter.\n * @param name Name to normalize\n */\nfunction camelCase(name) {\n  return name.\n    replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    }).\n    replace(MOZ_HACK_REGEXP, 'Moz$1');\n}\n\nvar SINGLE_TAG_REGEXP = /^<([\\w-]+)\\s*\\/?>(?:<\\/\\1>|)$/;\nvar HTML_REGEXP = /<|&#?\\w+;/;\nvar TAG_NAME_REGEXP = /<([\\w:-]+)/;\nvar XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:-]+)[^>]*)\\/>/gi;\n\nvar wrapMap = {\n  'option': [1, '<select multiple=\"multiple\">', '</select>'],\n\n  'thead': [1, '<table>', '</table>'],\n  'col': [2, '<table><colgroup>', '</colgroup></table>'],\n  'tr': [2, '<table><tbody>', '</tbody></table>'],\n  'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],\n  '_default': [0, '', '']\n};\n\nwrapMap.optgroup = wrapMap.option;\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\n\nfunction jqLiteIsTextNode(html) {\n  return !HTML_REGEXP.test(html);\n}\n\nfunction jqLiteAcceptsData(node) {\n  // The window object can accept data but has no nodeType\n  // Otherwise we are only interested in elements (1) and documents (9)\n  var nodeType = node.nodeType;\n  return nodeType === NODE_TYPE_ELEMENT || !nodeType || nodeType === NODE_TYPE_DOCUMENT;\n}\n\nfunction jqLiteHasData(node) {\n  for (var key in jqCache[node.ng339]) {\n    return true;\n  }\n  return false;\n}\n\nfunction jqLiteCleanData(nodes) {\n  for (var i = 0, ii = nodes.length; i < ii; i++) {\n    jqLiteRemoveData(nodes[i]);\n  }\n}\n\nfunction jqLiteBuildFragment(html, context) {\n  var tmp, tag, wrap,\n      fragment = context.createDocumentFragment(),\n      nodes = [], i;\n\n  if (jqLiteIsTextNode(html)) {\n    // Convert non-html into a text node\n    nodes.push(context.createTextNode(html));\n  } else {\n    // Convert html into DOM nodes\n    tmp = fragment.appendChild(context.createElement('div'));\n    tag = (TAG_NAME_REGEXP.exec(html) || ['', ''])[1].toLowerCase();\n    wrap = wrapMap[tag] || wrapMap._default;\n    tmp.innerHTML = wrap[1] + html.replace(XHTML_TAG_REGEXP, '<$1></$2>') + wrap[2];\n\n    // Descend through wrappers to the right content\n    i = wrap[0];\n    while (i--) {\n      tmp = tmp.lastChild;\n    }\n\n    nodes = concat(nodes, tmp.childNodes);\n\n    tmp = fragment.firstChild;\n    tmp.textContent = '';\n  }\n\n  // Remove wrapper from fragment\n  fragment.textContent = '';\n  fragment.innerHTML = ''; // Clear inner HTML\n  forEach(nodes, function(node) {\n    fragment.appendChild(node);\n  });\n\n  return fragment;\n}\n\nfunction jqLiteParseHTML(html, context) {\n  context = context || window.document;\n  var parsed;\n\n  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {\n    return [context.createElement(parsed[1])];\n  }\n\n  if ((parsed = jqLiteBuildFragment(html, context))) {\n    return parsed.childNodes;\n  }\n\n  return [];\n}\n\nfunction jqLiteWrapNode(node, wrapper) {\n  var parent = node.parentNode;\n\n  if (parent) {\n    parent.replaceChild(wrapper, node);\n  }\n\n  wrapper.appendChild(node);\n}\n\n\n// IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\nvar jqLiteContains = window.Node.prototype.contains || /** @this */ function(arg) {\n  // eslint-disable-next-line no-bitwise\n  return !!(this.compareDocumentPosition(arg) & 16);\n};\n\n/////////////////////////////////////////////\nfunction JQLite(element) {\n  if (element instanceof JQLite) {\n    return element;\n  }\n\n  var argIsString;\n\n  if (isString(element)) {\n    element = trim(element);\n    argIsString = true;\n  }\n  if (!(this instanceof JQLite)) {\n    if (argIsString && element.charAt(0) !== '<') {\n      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');\n    }\n    return new JQLite(element);\n  }\n\n  if (argIsString) {\n    jqLiteAddNodes(this, jqLiteParseHTML(element));\n  } else {\n    jqLiteAddNodes(this, element);\n  }\n}\n\nfunction jqLiteClone(element) {\n  return element.cloneNode(true);\n}\n\nfunction jqLiteDealoc(element, onlyDescendants) {\n  if (!onlyDescendants) jqLiteRemoveData(element);\n\n  if (element.querySelectorAll) {\n    var descendants = element.querySelectorAll('*');\n    for (var i = 0, l = descendants.length; i < l; i++) {\n      jqLiteRemoveData(descendants[i]);\n    }\n  }\n}\n\nfunction jqLiteOff(element, type, fn, unsupported) {\n  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');\n\n  var expandoStore = jqLiteExpandoStore(element);\n  var events = expandoStore && expandoStore.events;\n  var handle = expandoStore && expandoStore.handle;\n\n  if (!handle) return; //no listeners registered\n\n  if (!type) {\n    for (type in events) {\n      if (type !== '$destroy') {\n        removeEventListenerFn(element, type, handle);\n      }\n      delete events[type];\n    }\n  } else {\n\n    var removeHandler = function(type) {\n      var listenerFns = events[type];\n      if (isDefined(fn)) {\n        arrayRemove(listenerFns || [], fn);\n      }\n      if (!(isDefined(fn) && listenerFns && listenerFns.length > 0)) {\n        removeEventListenerFn(element, type, handle);\n        delete events[type];\n      }\n    };\n\n    forEach(type.split(' '), function(type) {\n      removeHandler(type);\n      if (MOUSE_EVENT_MAP[type]) {\n        removeHandler(MOUSE_EVENT_MAP[type]);\n      }\n    });\n  }\n}\n\nfunction jqLiteRemoveData(element, name) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  if (expandoStore) {\n    if (name) {\n      delete expandoStore.data[name];\n      return;\n    }\n\n    if (expandoStore.handle) {\n      if (expandoStore.events.$destroy) {\n        expandoStore.handle({}, '$destroy');\n      }\n      jqLiteOff(element);\n    }\n    delete jqCache[expandoId];\n    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it\n  }\n}\n\n\nfunction jqLiteExpandoStore(element, createIfNecessary) {\n  var expandoId = element.ng339,\n      expandoStore = expandoId && jqCache[expandoId];\n\n  if (createIfNecessary && !expandoStore) {\n    element.ng339 = expandoId = jqNextId();\n    expandoStore = jqCache[expandoId] = {events: {}, data: {}, handle: undefined};\n  }\n\n  return expandoStore;\n}\n\n\nfunction jqLiteData(element, key, value) {\n  if (jqLiteAcceptsData(element)) {\n\n    var isSimpleSetter = isDefined(value);\n    var isSimpleGetter = !isSimpleSetter && key && !isObject(key);\n    var massGetter = !key;\n    var expandoStore = jqLiteExpandoStore(element, !isSimpleGetter);\n    var data = expandoStore && expandoStore.data;\n\n    if (isSimpleSetter) { // data('key', value)\n      data[key] = value;\n    } else {\n      if (massGetter) {  // data()\n        return data;\n      } else {\n        if (isSimpleGetter) { // data('key')\n          // don't force creation of expandoStore if it doesn't exist yet\n          return data && data[key];\n        } else { // mass-setter: data({key1: val1, key2: val2})\n          extend(data, key);\n        }\n      }\n    }\n  }\n}\n\nfunction jqLiteHasClass(element, selector) {\n  if (!element.getAttribute) return false;\n  return ((' ' + (element.getAttribute('class') || '') + ' ').replace(/[\\n\\t]/g, ' ').\n      indexOf(' ' + selector + ' ') > -1);\n}\n\nfunction jqLiteRemoveClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    forEach(cssClasses.split(' '), function(cssClass) {\n      element.setAttribute('class', trim(\n          (' ' + (element.getAttribute('class') || '') + ' ')\n          .replace(/[\\n\\t]/g, ' ')\n          .replace(' ' + trim(cssClass) + ' ', ' '))\n      );\n    });\n  }\n}\n\nfunction jqLiteAddClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, ' ');\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      if (existingClasses.indexOf(' ' + cssClass + ' ') === -1) {\n        existingClasses += cssClass + ' ';\n      }\n    });\n\n    element.setAttribute('class', trim(existingClasses));\n  }\n}\n\n\nfunction jqLiteAddNodes(root, elements) {\n  // THIS CODE IS VERY HOT. Don't make changes without benchmarking.\n\n  if (elements) {\n\n    // if a Node (the most common case)\n    if (elements.nodeType) {\n      root[root.length++] = elements;\n    } else {\n      var length = elements.length;\n\n      // if an Array or NodeList and not a Window\n      if (typeof length === 'number' && elements.window !== elements) {\n        if (length) {\n          for (var i = 0; i < length; i++) {\n            root[root.length++] = elements[i];\n          }\n        }\n      } else {\n        root[root.length++] = elements;\n      }\n    }\n  }\n}\n\n\nfunction jqLiteController(element, name) {\n  return jqLiteInheritedData(element, '$' + (name || 'ngController') + 'Controller');\n}\n\nfunction jqLiteInheritedData(element, name, value) {\n  // if element is the document object work with the html element instead\n  // this makes $(document).scope() possible\n  if (element.nodeType === NODE_TYPE_DOCUMENT) {\n    element = element.documentElement;\n  }\n  var names = isArray(name) ? name : [name];\n\n  while (element) {\n    for (var i = 0, ii = names.length; i < ii; i++) {\n      if (isDefined(value = jqLite.data(element, names[i]))) return value;\n    }\n\n    // If dealing with a document fragment node with a host element, and no parent, use the host\n    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM\n    // to lookup parent controllers.\n    element = element.parentNode || (element.nodeType === NODE_TYPE_DOCUMENT_FRAGMENT && element.host);\n  }\n}\n\nfunction jqLiteEmpty(element) {\n  jqLiteDealoc(element, true);\n  while (element.firstChild) {\n    element.removeChild(element.firstChild);\n  }\n}\n\nfunction jqLiteRemove(element, keepData) {\n  if (!keepData) jqLiteDealoc(element);\n  var parent = element.parentNode;\n  if (parent) parent.removeChild(element);\n}\n\n\nfunction jqLiteDocumentLoaded(action, win) {\n  win = win || window;\n  if (win.document.readyState === 'complete') {\n    // Force the action to be run async for consistent behavior\n    // from the action's point of view\n    // i.e. it will definitely not be in a $apply\n    win.setTimeout(action);\n  } else {\n    // No need to unbind this handler as load is only ever called once\n    jqLite(win).on('load', action);\n  }\n}\n\n//////////////////////////////////////////\n// Functions which are declared directly.\n//////////////////////////////////////////\nvar JQLitePrototype = JQLite.prototype = {\n  ready: function(fn) {\n    var fired = false;\n\n    function trigger() {\n      if (fired) return;\n      fired = true;\n      fn();\n    }\n\n    // check if document is already loaded\n    if (window.document.readyState === 'complete') {\n      window.setTimeout(trigger);\n    } else {\n      this.on('DOMContentLoaded', trigger); // works for modern browsers and IE9\n      // we can not use jqLite since we are not done loading and jQuery could be loaded later.\n      // eslint-disable-next-line new-cap\n      JQLite(window).on('load', trigger); // fallback to window.onload for others\n    }\n  },\n  toString: function() {\n    var value = [];\n    forEach(this, function(e) { value.push('' + e);});\n    return '[' + value.join(', ') + ']';\n  },\n\n  eq: function(index) {\n      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);\n  },\n\n  length: 0,\n  push: push,\n  sort: [].sort,\n  splice: [].splice\n};\n\n//////////////////////////////////////////\n// Functions iterating getter/setters.\n// these functions return self on setter and\n// value on get.\n//////////////////////////////////////////\nvar BOOLEAN_ATTR = {};\nforEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {\n  BOOLEAN_ATTR[lowercase(value)] = value;\n});\nvar BOOLEAN_ELEMENTS = {};\nforEach('input,select,option,textarea,button,form,details'.split(','), function(value) {\n  BOOLEAN_ELEMENTS[value] = true;\n});\nvar ALIASED_ATTR = {\n  'ngMinlength': 'minlength',\n  'ngMaxlength': 'maxlength',\n  'ngMin': 'min',\n  'ngMax': 'max',\n  'ngPattern': 'pattern'\n};\n\nfunction getBooleanAttrName(element, name) {\n  // check dom last since we will most likely fail on name\n  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];\n\n  // booleanAttr is here twice to minimize DOM access\n  return booleanAttr && BOOLEAN_ELEMENTS[nodeName_(element)] && booleanAttr;\n}\n\nfunction getAliasedAttrName(name) {\n  return ALIASED_ATTR[name];\n}\n\nforEach({\n  data: jqLiteData,\n  removeData: jqLiteRemoveData,\n  hasData: jqLiteHasData,\n  cleanData: jqLiteCleanData\n}, function(fn, name) {\n  JQLite[name] = fn;\n});\n\nforEach({\n  data: jqLiteData,\n  inheritedData: jqLiteInheritedData,\n\n  scope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);\n  },\n\n  isolateScope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');\n  },\n\n  controller: jqLiteController,\n\n  injector: function(element) {\n    return jqLiteInheritedData(element, '$injector');\n  },\n\n  removeAttr: function(element, name) {\n    element.removeAttribute(name);\n  },\n\n  hasClass: jqLiteHasClass,\n\n  css: function(element, name, value) {\n    name = camelCase(name);\n\n    if (isDefined(value)) {\n      element.style[name] = value;\n    } else {\n      return element.style[name];\n    }\n  },\n\n  attr: function(element, name, value) {\n    var nodeType = element.nodeType;\n    if (nodeType === NODE_TYPE_TEXT || nodeType === NODE_TYPE_ATTRIBUTE || nodeType === NODE_TYPE_COMMENT) {\n      return;\n    }\n    var lowercasedName = lowercase(name);\n    if (BOOLEAN_ATTR[lowercasedName]) {\n      if (isDefined(value)) {\n        if (value) {\n          element[name] = true;\n          element.setAttribute(name, lowercasedName);\n        } else {\n          element[name] = false;\n          element.removeAttribute(lowercasedName);\n        }\n      } else {\n        return (element[name] ||\n                 (element.attributes.getNamedItem(name) || noop).specified)\n               ? lowercasedName\n               : undefined;\n      }\n    } else if (isDefined(value)) {\n      element.setAttribute(name, value);\n    } else if (element.getAttribute) {\n      // the extra argument \"2\" is to get the right thing for a.href in IE, see jQuery code\n      // some elements (e.g. Document) don't have get attribute, so return undefined\n      var ret = element.getAttribute(name, 2);\n      // normalize non-existing attributes to undefined (as jQuery)\n      return ret === null ? undefined : ret;\n    }\n  },\n\n  prop: function(element, name, value) {\n    if (isDefined(value)) {\n      element[name] = value;\n    } else {\n      return element[name];\n    }\n  },\n\n  text: (function() {\n    getText.$dv = '';\n    return getText;\n\n    function getText(element, value) {\n      if (isUndefined(value)) {\n        var nodeType = element.nodeType;\n        return (nodeType === NODE_TYPE_ELEMENT || nodeType === NODE_TYPE_TEXT) ? element.textContent : '';\n      }\n      element.textContent = value;\n    }\n  })(),\n\n  val: function(element, value) {\n    if (isUndefined(value)) {\n      if (element.multiple && nodeName_(element) === 'select') {\n        var result = [];\n        forEach(element.options, function(option) {\n          if (option.selected) {\n            result.push(option.value || option.text);\n          }\n        });\n        return result.length === 0 ? null : result;\n      }\n      return element.value;\n    }\n    element.value = value;\n  },\n\n  html: function(element, value) {\n    if (isUndefined(value)) {\n      return element.innerHTML;\n    }\n    jqLiteDealoc(element, true);\n    element.innerHTML = value;\n  },\n\n  empty: jqLiteEmpty\n}, function(fn, name) {\n  /**\n   * Properties: writes return selection, reads return first value\n   */\n  JQLite.prototype[name] = function(arg1, arg2) {\n    var i, key;\n    var nodeCount = this.length;\n\n    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it\n    // in a way that survives minification.\n    // jqLiteEmpty takes no arguments but is a setter.\n    if (fn !== jqLiteEmpty &&\n        (isUndefined((fn.length === 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2))) {\n      if (isObject(arg1)) {\n\n        // we are a write, but the object properties are the key/values\n        for (i = 0; i < nodeCount; i++) {\n          if (fn === jqLiteData) {\n            // data() takes the whole object in jQuery\n            fn(this[i], arg1);\n          } else {\n            for (key in arg1) {\n              fn(this[i], key, arg1[key]);\n            }\n          }\n        }\n        // return self for chaining\n        return this;\n      } else {\n        // we are a read, so read the first child.\n        // TODO: do we still need this?\n        var value = fn.$dv;\n        // Only if we have $dv do we iterate over all, otherwise it is just the first element.\n        var jj = (isUndefined(value)) ? Math.min(nodeCount, 1) : nodeCount;\n        for (var j = 0; j < jj; j++) {\n          var nodeValue = fn(this[j], arg1, arg2);\n          value = value ? value + nodeValue : nodeValue;\n        }\n        return value;\n      }\n    } else {\n      // we are a write, so apply to all children\n      for (i = 0; i < nodeCount; i++) {\n        fn(this[i], arg1, arg2);\n      }\n      // return self for chaining\n      return this;\n    }\n  };\n});\n\nfunction createEventHandler(element, events) {\n  var eventHandler = function(event, type) {\n    // jQuery specific api\n    event.isDefaultPrevented = function() {\n      return event.defaultPrevented;\n    };\n\n    var eventFns = events[type || event.type];\n    var eventFnsLength = eventFns ? eventFns.length : 0;\n\n    if (!eventFnsLength) return;\n\n    if (isUndefined(event.immediatePropagationStopped)) {\n      var originalStopImmediatePropagation = event.stopImmediatePropagation;\n      event.stopImmediatePropagation = function() {\n        event.immediatePropagationStopped = true;\n\n        if (event.stopPropagation) {\n          event.stopPropagation();\n        }\n\n        if (originalStopImmediatePropagation) {\n          originalStopImmediatePropagation.call(event);\n        }\n      };\n    }\n\n    event.isImmediatePropagationStopped = function() {\n      return event.immediatePropagationStopped === true;\n    };\n\n    // Some events have special handlers that wrap the real handler\n    var handlerWrapper = eventFns.specialHandlerWrapper || defaultHandlerWrapper;\n\n    // Copy event handlers in case event handlers array is modified during execution.\n    if ((eventFnsLength > 1)) {\n      eventFns = shallowCopy(eventFns);\n    }\n\n    for (var i = 0; i < eventFnsLength; i++) {\n      if (!event.isImmediatePropagationStopped()) {\n        handlerWrapper(element, event, eventFns[i]);\n      }\n    }\n  };\n\n  // TODO: this is a hack for angularMocks/clearDataCache that makes it possible to deregister all\n  //       events on `element`\n  eventHandler.elem = element;\n  return eventHandler;\n}\n\nfunction defaultHandlerWrapper(element, event, handler) {\n  handler.call(element, event);\n}\n\nfunction specialMouseHandlerWrapper(target, event, handler) {\n  // Refer to jQuery's implementation of mouseenter & mouseleave\n  // Read about mouseenter and mouseleave:\n  // http://www.quirksmode.org/js/events_mouse.html#link8\n  var related = event.relatedTarget;\n  // For mousenter/leave call the handler if related is outside the target.\n  // NB: No relatedTarget if the mouse left/entered the browser window\n  if (!related || (related !== target && !jqLiteContains.call(target, related))) {\n    handler.call(target, event);\n  }\n}\n\n//////////////////////////////////////////\n// Functions iterating traversal.\n// These functions chain results into a single\n// selector.\n//////////////////////////////////////////\nforEach({\n  removeData: jqLiteRemoveData,\n\n  on: function jqLiteOn(element, type, fn, unsupported) {\n    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');\n\n    // Do not add event handlers to non-elements because they will not be cleaned up.\n    if (!jqLiteAcceptsData(element)) {\n      return;\n    }\n\n    var expandoStore = jqLiteExpandoStore(element, true);\n    var events = expandoStore.events;\n    var handle = expandoStore.handle;\n\n    if (!handle) {\n      handle = expandoStore.handle = createEventHandler(element, events);\n    }\n\n    // http://jsperf.com/string-indexof-vs-split\n    var types = type.indexOf(' ') >= 0 ? type.split(' ') : [type];\n    var i = types.length;\n\n    var addHandler = function(type, specialHandlerWrapper, noEventListener) {\n      var eventFns = events[type];\n\n      if (!eventFns) {\n        eventFns = events[type] = [];\n        eventFns.specialHandlerWrapper = specialHandlerWrapper;\n        if (type !== '$destroy' && !noEventListener) {\n          addEventListenerFn(element, type, handle);\n        }\n      }\n\n      eventFns.push(fn);\n    };\n\n    while (i--) {\n      type = types[i];\n      if (MOUSE_EVENT_MAP[type]) {\n        addHandler(MOUSE_EVENT_MAP[type], specialMouseHandlerWrapper);\n        addHandler(type, undefined, true);\n      } else {\n        addHandler(type);\n      }\n    }\n  },\n\n  off: jqLiteOff,\n\n  one: function(element, type, fn) {\n    element = jqLite(element);\n\n    //add the listener twice so that when it is called\n    //you can remove the original function and still be\n    //able to call element.off(ev, fn) normally\n    element.on(type, function onFn() {\n      element.off(type, fn);\n      element.off(type, onFn);\n    });\n    element.on(type, fn);\n  },\n\n  replaceWith: function(element, replaceNode) {\n    var index, parent = element.parentNode;\n    jqLiteDealoc(element);\n    forEach(new JQLite(replaceNode), function(node) {\n      if (index) {\n        parent.insertBefore(node, index.nextSibling);\n      } else {\n        parent.replaceChild(node, element);\n      }\n      index = node;\n    });\n  },\n\n  children: function(element) {\n    var children = [];\n    forEach(element.childNodes, function(element) {\n      if (element.nodeType === NODE_TYPE_ELEMENT) {\n        children.push(element);\n      }\n    });\n    return children;\n  },\n\n  contents: function(element) {\n    return element.contentDocument || element.childNodes || [];\n  },\n\n  append: function(element, node) {\n    var nodeType = element.nodeType;\n    if (nodeType !== NODE_TYPE_ELEMENT && nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT) return;\n\n    node = new JQLite(node);\n\n    for (var i = 0, ii = node.length; i < ii; i++) {\n      var child = node[i];\n      element.appendChild(child);\n    }\n  },\n\n  prepend: function(element, node) {\n    if (element.nodeType === NODE_TYPE_ELEMENT) {\n      var index = element.firstChild;\n      forEach(new JQLite(node), function(child) {\n        element.insertBefore(child, index);\n      });\n    }\n  },\n\n  wrap: function(element, wrapNode) {\n    jqLiteWrapNode(element, jqLite(wrapNode).eq(0).clone()[0]);\n  },\n\n  remove: jqLiteRemove,\n\n  detach: function(element) {\n    jqLiteRemove(element, true);\n  },\n\n  after: function(element, newElement) {\n    var index = element, parent = element.parentNode;\n\n    if (parent) {\n      newElement = new JQLite(newElement);\n\n      for (var i = 0, ii = newElement.length; i < ii; i++) {\n        var node = newElement[i];\n        parent.insertBefore(node, index.nextSibling);\n        index = node;\n      }\n    }\n  },\n\n  addClass: jqLiteAddClass,\n  removeClass: jqLiteRemoveClass,\n\n  toggleClass: function(element, selector, condition) {\n    if (selector) {\n      forEach(selector.split(' '), function(className) {\n        var classCondition = condition;\n        if (isUndefined(classCondition)) {\n          classCondition = !jqLiteHasClass(element, className);\n        }\n        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);\n      });\n    }\n  },\n\n  parent: function(element) {\n    var parent = element.parentNode;\n    return parent && parent.nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT ? parent : null;\n  },\n\n  next: function(element) {\n    return element.nextElementSibling;\n  },\n\n  find: function(element, selector) {\n    if (element.getElementsByTagName) {\n      return element.getElementsByTagName(selector);\n    } else {\n      return [];\n    }\n  },\n\n  clone: jqLiteClone,\n\n  triggerHandler: function(element, event, extraParameters) {\n\n    var dummyEvent, eventFnsCopy, handlerArgs;\n    var eventName = event.type || event;\n    var expandoStore = jqLiteExpandoStore(element);\n    var events = expandoStore && expandoStore.events;\n    var eventFns = events && events[eventName];\n\n    if (eventFns) {\n      // Create a dummy event to pass to the handlers\n      dummyEvent = {\n        preventDefault: function() { this.defaultPrevented = true; },\n        isDefaultPrevented: function() { return this.defaultPrevented === true; },\n        stopImmediatePropagation: function() { this.immediatePropagationStopped = true; },\n        isImmediatePropagationStopped: function() { return this.immediatePropagationStopped === true; },\n        stopPropagation: noop,\n        type: eventName,\n        target: element\n      };\n\n      // If a custom event was provided then extend our dummy event with it\n      if (event.type) {\n        dummyEvent = extend(dummyEvent, event);\n      }\n\n      // Copy event handlers in case event handlers array is modified during execution.\n      eventFnsCopy = shallowCopy(eventFns);\n      handlerArgs = extraParameters ? [dummyEvent].concat(extraParameters) : [dummyEvent];\n\n      forEach(eventFnsCopy, function(fn) {\n        if (!dummyEvent.isImmediatePropagationStopped()) {\n          fn.apply(element, handlerArgs);\n        }\n      });\n    }\n  }\n}, function(fn, name) {\n  /**\n   * chaining functions\n   */\n  JQLite.prototype[name] = function(arg1, arg2, arg3) {\n    var value;\n\n    for (var i = 0, ii = this.length; i < ii; i++) {\n      if (isUndefined(value)) {\n        value = fn(this[i], arg1, arg2, arg3);\n        if (isDefined(value)) {\n          // any function which returns a value needs to be wrapped\n          value = jqLite(value);\n        }\n      } else {\n        jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));\n      }\n    }\n    return isDefined(value) ? value : this;\n  };\n});\n\n// bind legacy bind/unbind to on/off\nJQLite.prototype.bind = JQLite.prototype.on;\nJQLite.prototype.unbind = JQLite.prototype.off;\n\n\n// Provider for private $$jqLite service\n/** @this */\nfunction $$jqLiteProvider() {\n  this.$get = function $$jqLite() {\n    return extend(JQLite, {\n      hasClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteHasClass(node, classes);\n      },\n      addClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteAddClass(node, classes);\n      },\n      removeClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteRemoveClass(node, classes);\n      }\n    });\n  };\n}\n\n/**\n * Computes a hash of an 'obj'.\n * Hash of a:\n *  string is string\n *  number is number as string\n *  object is either result of calling $$hashKey function on the object or uniquely generated id,\n *         that is also assigned to the $$hashKey property of the object.\n *\n * @param obj\n * @returns {string} hash string such that the same input will have the same hash string.\n *         The resulting string key is in 'type:hashKey' format.\n */\nfunction hashKey(obj, nextUidFn) {\n  var key = obj && obj.$$hashKey;\n\n  if (key) {\n    if (typeof key === 'function') {\n      key = obj.$$hashKey();\n    }\n    return key;\n  }\n\n  var objType = typeof obj;\n  if (objType === 'function' || (objType === 'object' && obj !== null)) {\n    key = obj.$$hashKey = objType + ':' + (nextUidFn || nextUid)();\n  } else {\n    key = objType + ':' + obj;\n  }\n\n  return key;\n}\n\n/**\n * HashMap which can use objects as keys\n */\nfunction HashMap(array, isolatedUid) {\n  if (isolatedUid) {\n    var uid = 0;\n    this.nextUid = function() {\n      return ++uid;\n    };\n  }\n  forEach(array, this.put, this);\n}\nHashMap.prototype = {\n  /**\n   * Store key value pair\n   * @param key key to store can be any type\n   * @param value value to store can be any type\n   */\n  put: function(key, value) {\n    this[hashKey(key, this.nextUid)] = value;\n  },\n\n  /**\n   * @param key\n   * @returns {Object} the value for the key\n   */\n  get: function(key) {\n    return this[hashKey(key, this.nextUid)];\n  },\n\n  /**\n   * Remove the key/value pair\n   * @param key\n   */\n  remove: function(key) {\n    var value = this[key = hashKey(key, this.nextUid)];\n    delete this[key];\n    return value;\n  }\n};\n\nvar $$HashMapProvider = [/** @this */function() {\n  this.$get = [function() {\n    return HashMap;\n  }];\n}];\n\n/**\n * @ngdoc function\n * @module ng\n * @name angular.injector\n * @kind function\n *\n * @description\n * Creates an injector object that can be used for retrieving services as well as for\n * dependency injection (see {@link guide/di dependency injection}).\n *\n * @param {Array.<string|Function>} modules A list of module functions or their aliases. See\n *     {@link angular.module}. The `ng` module must be explicitly added.\n * @param {boolean=} [strictDi=false] Whether the injector should be in strict mode, which\n *     disallows argument name annotation inference.\n * @returns {injector} Injector object. See {@link auto.$injector $injector}.\n *\n * @example\n * Typical usage\n * ```js\n *   // create an injector\n *   var $injector = angular.injector(['ng']);\n *\n *   // use the injector to kick off your application\n *   // use the type inference to auto inject arguments, or use implicit injection\n *   $injector.invoke(function($rootScope, $compile, $document) {\n *     $compile($document)($rootScope);\n *     $rootScope.$digest();\n *   });\n * ```\n *\n * Sometimes you want to get access to the injector of a currently running Angular app\n * from outside Angular. Perhaps, you want to inject and compile some markup after the\n * application has been bootstrapped. You can do this using the extra `injector()` added\n * to JQuery/jqLite elements. See {@link angular.element}.\n *\n * *This is fairly rare but could be the case if a third party library is injecting the\n * markup.*\n *\n * In the following example a new block of HTML containing a `ng-controller`\n * directive is added to the end of the document body by JQuery. We then compile and link\n * it into the current AngularJS scope.\n *\n * ```js\n * var $div = $('<div ng-controller=\"MyCtrl\">{{content.label}}</div>');\n * $(document.body).append($div);\n *\n * angular.element(document).injector().invoke(function($compile) {\n *   var scope = angular.element($div).scope();\n *   $compile($div)(scope);\n * });\n * ```\n */\n\n\n/**\n * @ngdoc module\n * @name auto\n * @installation\n * @description\n *\n * Implicit module which gets automatically added to each {@link auto.$injector $injector}.\n */\n\nvar ARROW_ARG = /^([^(]+?)=>/;\nvar FN_ARGS = /^[^(]*\\(\\s*([^)]*)\\)/m;\nvar FN_ARG_SPLIT = /,/;\nvar FN_ARG = /^\\s*(_?)(\\S+?)\\1\\s*$/;\nvar STRIP_COMMENTS = /((\\/\\/.*$)|(\\/\\*[\\s\\S]*?\\*\\/))/mg;\nvar $injectorMinErr = minErr('$injector');\n\nfunction stringifyFn(fn) {\n  // Support: Chrome 50-51 only\n  // Creating a new string by adding `' '` at the end, to hack around some bug in Chrome v50/51\n  // (See https://github.com/angular/angular.js/issues/14487.)\n  // TODO (gkalpak): Remove workaround when Chrome v52 is released\n  return Function.prototype.toString.call(fn) + ' ';\n}\n\nfunction extractArgs(fn) {\n  var fnText = stringifyFn(fn).replace(STRIP_COMMENTS, ''),\n      args = fnText.match(ARROW_ARG) || fnText.match(FN_ARGS);\n  return args;\n}\n\nfunction anonFn(fn) {\n  // For anonymous functions, showing at the very least the function signature can help in\n  // debugging.\n  var args = extractArgs(fn);\n  if (args) {\n    return 'function(' + (args[1] || '').replace(/[\\s\\r\\n]+/, ' ') + ')';\n  }\n  return 'fn';\n}\n\nfunction annotate(fn, strictDi, name) {\n  var $inject,\n      argDecl,\n      last;\n\n  if (typeof fn === 'function') {\n    if (!($inject = fn.$inject)) {\n      $inject = [];\n      if (fn.length) {\n        if (strictDi) {\n          if (!isString(name) || !name) {\n            name = fn.name || anonFn(fn);\n          }\n          throw $injectorMinErr('strictdi',\n            '{0} is not using explicit annotation and cannot be invoked in strict mode', name);\n        }\n        argDecl = extractArgs(fn);\n        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg) {\n          arg.replace(FN_ARG, function(all, underscore, name) {\n            $inject.push(name);\n          });\n        });\n      }\n      fn.$inject = $inject;\n    }\n  } else if (isArray(fn)) {\n    last = fn.length - 1;\n    assertArgFn(fn[last], 'fn');\n    $inject = fn.slice(0, last);\n  } else {\n    assertArgFn(fn, 'fn', true);\n  }\n  return $inject;\n}\n\n///////////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $injector\n *\n * @description\n *\n * `$injector` is used to retrieve object instances as defined by\n * {@link auto.$provide provider}, instantiate types, invoke methods,\n * and load modules.\n *\n * The following always holds true:\n *\n * ```js\n *   var $injector = angular.injector();\n *   expect($injector.get('$injector')).toBe($injector);\n *   expect($injector.invoke(function($injector) {\n *     return $injector;\n *   })).toBe($injector);\n * ```\n *\n * # Injection Function Annotation\n *\n * JavaScript does not have annotations, and annotations are needed for dependency injection. The\n * following are all valid ways of annotating function with injection arguments and are equivalent.\n *\n * ```js\n *   // inferred (only works if code not minified/obfuscated)\n *   $injector.invoke(function(serviceA){});\n *\n *   // annotated\n *   function explicit(serviceA) {};\n *   explicit.$inject = ['serviceA'];\n *   $injector.invoke(explicit);\n *\n *   // inline\n *   $injector.invoke(['serviceA', function(serviceA){}]);\n * ```\n *\n * ## Inference\n *\n * In JavaScript calling `toString()` on a function returns the function definition. The definition\n * can then be parsed and the function arguments can be extracted. This method of discovering\n * annotations is disallowed when the injector is in strict mode.\n * *NOTE:* This does not work with minification, and obfuscation tools since these tools change the\n * argument names.\n *\n * ## `$inject` Annotation\n * By adding an `$inject` property onto a function the injection parameters can be specified.\n *\n * ## Inline\n * As an array of injection names, where the last item in the array is the function to call.\n */\n\n/**\n * @ngdoc method\n * @name $injector#get\n *\n * @description\n * Return an instance of the service.\n *\n * @param {string} name The name of the instance to retrieve.\n * @param {string=} caller An optional string to provide the origin of the function call for error messages.\n * @return {*} The instance.\n */\n\n/**\n * @ngdoc method\n * @name $injector#invoke\n *\n * @description\n * Invoke the method and supply the method arguments from the `$injector`.\n *\n * @param {Function|Array.<string|Function>} fn The injectable function to invoke. Function parameters are\n *   injected according to the {@link guide/di $inject Annotation} rules.\n * @param {Object=} self The `this` for the invoked method.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n *                         object first, before the `$injector` is consulted.\n * @returns {*} the value returned by the invoked `fn` function.\n */\n\n/**\n * @ngdoc method\n * @name $injector#has\n *\n * @description\n * Allows the user to query if the particular service exists.\n *\n * @param {string} name Name of the service to query.\n * @returns {boolean} `true` if injector has given service.\n */\n\n/**\n * @ngdoc method\n * @name $injector#instantiate\n * @description\n * Create a new instance of JS type. The method takes a constructor function, invokes the new\n * operator, and supplies all of the arguments to the constructor function as specified by the\n * constructor annotation.\n *\n * @param {Function} Type Annotated constructor function.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n * object first, before the `$injector` is consulted.\n * @returns {Object} new instance of `Type`.\n */\n\n/**\n * @ngdoc method\n * @name $injector#annotate\n *\n * @description\n * Returns an array of service names which the function is requesting for injection. This API is\n * used by the injector to determine which services need to be injected into the function when the\n * function is invoked. There are three ways in which the function can be annotated with the needed\n * dependencies.\n *\n * # Argument names\n *\n * The simplest form is to extract the dependencies from the arguments of the function. This is done\n * by converting the function into a string using `toString()` method and extracting the argument\n * names.\n * ```js\n *   // Given\n *   function MyController($scope, $route) {\n *     // ...\n *   }\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * You can disallow this method by using strict injection mode.\n *\n * This method does not work with code minification / obfuscation. For this reason the following\n * annotation strategies are supported.\n *\n * # The `$inject` property\n *\n * If a function has an `$inject` property and its value is an array of strings, then the strings\n * represent names of services to be injected into the function.\n * ```js\n *   // Given\n *   var MyController = function(obfuscatedScope, obfuscatedRoute) {\n *     // ...\n *   }\n *   // Define function dependencies\n *   MyController['$inject'] = ['$scope', '$route'];\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * # The array notation\n *\n * It is often desirable to inline Injected functions and that's when setting the `$inject` property\n * is very inconvenient. In these situations using the array notation to specify the dependencies in\n * a way that survives minification is a better choice:\n *\n * ```js\n *   // We wish to write this (not minification / obfuscation safe)\n *   injector.invoke(function($compile, $rootScope) {\n *     // ...\n *   });\n *\n *   // We are forced to write break inlining\n *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {\n *     // ...\n *   };\n *   tmpFn.$inject = ['$compile', '$rootScope'];\n *   injector.invoke(tmpFn);\n *\n *   // To better support inline function the inline annotation is supported\n *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {\n *     // ...\n *   }]);\n *\n *   // Therefore\n *   expect(injector.annotate(\n *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])\n *    ).toEqual(['$compile', '$rootScope']);\n * ```\n *\n * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to\n * be retrieved as described above.\n *\n * @param {boolean=} [strictDi=false] Disallow argument name annotation inference.\n *\n * @returns {Array.<string>} The names of the services which the function requires.\n */\n\n\n\n/**\n * @ngdoc service\n * @name $provide\n *\n * @description\n *\n * The {@link auto.$provide $provide} service has a number of methods for registering components\n * with the {@link auto.$injector $injector}. Many of these functions are also exposed on\n * {@link angular.Module}.\n *\n * An Angular **service** is a singleton object created by a **service factory**.  These **service\n * factories** are functions which, in turn, are created by a **service provider**.\n * The **service providers** are constructor functions. When instantiated they must contain a\n * property called `$get`, which holds the **service factory** function.\n *\n * When you request a service, the {@link auto.$injector $injector} is responsible for finding the\n * correct **service provider**, instantiating it and then calling its `$get` **service factory**\n * function to get the instance of the **service**.\n *\n * Often services have no configuration options and there is no need to add methods to the service\n * provider.  The provider will be no more than a constructor function with a `$get` property. For\n * these cases the {@link auto.$provide $provide} service has additional helper methods to register\n * services without specifying a provider.\n *\n * * {@link auto.$provide#provider provider(name, provider)} - registers a **service provider** with the\n *     {@link auto.$injector $injector}\n * * {@link auto.$provide#constant constant(name, obj)} - registers a value/object that can be accessed by\n *     providers and services.\n * * {@link auto.$provide#value value(name, obj)} - registers a value/object that can only be accessed by\n *     services, not providers.\n * * {@link auto.$provide#factory factory(name, fn)} - registers a service **factory function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will contain the\n *     given factory function.\n * * {@link auto.$provide#service service(name, Fn)} - registers a **constructor function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate\n *      a new object using the given constructor function.\n * * {@link auto.$provide#decorator decorator(name, decorFn)} - registers a **decorator function** that\n *      will be able to modify or replace the implementation of another service.\n *\n * See the individual methods for more information and examples.\n */\n\n/**\n * @ngdoc method\n * @name $provide#provider\n * @description\n *\n * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions\n * are constructor functions, whose instances are responsible for \"providing\" a factory for a\n * service.\n *\n * Service provider names start with the name of the service they provide followed by `Provider`.\n * For example, the {@link ng.$log $log} service has a provider called\n * {@link ng.$logProvider $logProvider}.\n *\n * Service provider objects can have additional methods which allow configuration of the provider\n * and its service. Importantly, you can configure what kind of service is created by the `$get`\n * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a\n * method {@link ng.$logProvider#debugEnabled debugEnabled}\n * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the\n * console or not.\n *\n * @param {string} name The name of the instance. NOTE: the provider will be available under `name +\n                        'Provider'` key.\n * @param {(Object|function())} provider If the provider is:\n *\n *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using\n *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.\n *   - `Constructor`: a new instance of the provider will be created using\n *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.\n *\n * @returns {Object} registered provider instance\n\n * @example\n *\n * The following example shows how to create a simple event tracking service and register it using\n * {@link auto.$provide#provider $provide.provider()}.\n *\n * ```js\n *  // Define the eventTracker provider\n *  function EventTrackerProvider() {\n *    var trackingUrl = '/track';\n *\n *    // A provider method for configuring where the tracked events should been saved\n *    this.setTrackingUrl = function(url) {\n *      trackingUrl = url;\n *    };\n *\n *    // The service factory function\n *    this.$get = ['$http', function($http) {\n *      var trackedEvents = {};\n *      return {\n *        // Call this to track an event\n *        event: function(event) {\n *          var count = trackedEvents[event] || 0;\n *          count += 1;\n *          trackedEvents[event] = count;\n *          return count;\n *        },\n *        // Call this to save the tracked events to the trackingUrl\n *        save: function() {\n *          $http.post(trackingUrl, trackedEvents);\n *        }\n *      };\n *    }];\n *  }\n *\n *  describe('eventTracker', function() {\n *    var postSpy;\n *\n *    beforeEach(module(function($provide) {\n *      // Register the eventTracker provider\n *      $provide.provider('eventTracker', EventTrackerProvider);\n *    }));\n *\n *    beforeEach(module(function(eventTrackerProvider) {\n *      // Configure eventTracker provider\n *      eventTrackerProvider.setTrackingUrl('/custom-track');\n *    }));\n *\n *    it('tracks events', inject(function(eventTracker) {\n *      expect(eventTracker.event('login')).toEqual(1);\n *      expect(eventTracker.event('login')).toEqual(2);\n *    }));\n *\n *    it('saves to the tracking url', inject(function(eventTracker, $http) {\n *      postSpy = spyOn($http, 'post');\n *      eventTracker.event('login');\n *      eventTracker.save();\n *      expect(postSpy).toHaveBeenCalled();\n *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');\n *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');\n *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });\n *    }));\n *  });\n * ```\n */\n\n/**\n * @ngdoc method\n * @name $provide#factory\n * @description\n *\n * Register a **service factory**, which will be called to return the service instance.\n * This is short for registering a service where its provider consists of only a `$get` property,\n * which is the given service factory function.\n * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to\n * configure your service in a provider.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} $getFn The injectable $getFn for the instance creation.\n *                      Internally this is a short hand for `$provide.provider(name, {$get: $getFn})`.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service\n * ```js\n *   $provide.factory('ping', ['$http', function($http) {\n *     return function ping() {\n *       return $http.send('/ping');\n *     };\n *   }]);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#service\n * @description\n *\n * Register a **service constructor**, which will be invoked with `new` to create the service\n * instance.\n * This is short for registering a service where its provider's `$get` property is a factory\n * function that returns an instance instantiated by the injector from the service constructor\n * function.\n *\n * Internally it looks a bit like this:\n *\n * ```\n * {\n *   $get: function() {\n *     return $injector.instantiate(constructor);\n *   }\n * }\n * ```\n *\n *\n * You should use {@link auto.$provide#service $provide.service(class)} if you define your service\n * as a type/class.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} constructor An injectable class (constructor function)\n *     that will be instantiated.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service using\n * {@link auto.$provide#service $provide.service(class)}.\n * ```js\n *   var Ping = function($http) {\n *     this.$http = $http;\n *   };\n *\n *   Ping.$inject = ['$http'];\n *\n *   Ping.prototype.send = function() {\n *     return this.$http.get('/ping');\n *   };\n *   $provide.service('ping', Ping);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping.send();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#value\n * @description\n *\n * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a\n * number, an array, an object or a function. This is short for registering a service where its\n * provider's `$get` property is a factory function that takes no arguments and returns the **value\n * service**. That also means it is not possible to inject other services into a value service.\n *\n * Value services are similar to constant services, except that they cannot be injected into a\n * module configuration function (see {@link angular.Module#config}) but they can be overridden by\n * an Angular {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the instance.\n * @param {*} value The value.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here are some examples of creating value services.\n * ```js\n *   $provide.value('ADMIN_USER', 'admin');\n *\n *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });\n *\n *   $provide.value('halfOf', function(value) {\n *     return value / 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#constant\n * @description\n *\n * Register a **constant service** with the {@link auto.$injector $injector}, such as a string,\n * a number, an array, an object or a function. Like the {@link auto.$provide#value value}, it is not\n * possible to inject other services into a constant.\n *\n * But unlike {@link auto.$provide#value value}, a constant can be\n * injected into a module configuration function (see {@link angular.Module#config}) and it cannot\n * be overridden by an Angular {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the constant.\n * @param {*} value The constant value.\n * @returns {Object} registered instance\n *\n * @example\n * Here a some examples of creating constants:\n * ```js\n *   $provide.constant('SHARD_HEIGHT', 306);\n *\n *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);\n *\n *   $provide.constant('double', function(value) {\n *     return value * 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#decorator\n * @description\n *\n * Register a **decorator function** with the {@link auto.$injector $injector}. A decorator function\n * intercepts the creation of a service, allowing it to override or modify the behavior of the\n * service. The return value of the decorator function may be the original service, or a new service\n * that replaces (or wraps and delegates to) the original service.\n *\n * You can find out more about using decorators in the {@link guide/decorators} guide.\n *\n * @param {string} name The name of the service to decorate.\n * @param {Function|Array.<string|Function>} decorator This function will be invoked when the service needs to be\n *    provided and should return the decorated service instance. The function is called using\n *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.\n *    Local injection arguments:\n *\n *    * `$delegate` - The original service instance, which can be replaced, monkey patched, configured,\n *      decorated or delegated to.\n *\n * @example\n * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting\n * calls to {@link ng.$log#error $log.warn()}.\n * ```js\n *   $provide.decorator('$log', ['$delegate', function($delegate) {\n *     $delegate.warn = $delegate.error;\n *     return $delegate;\n *   }]);\n * ```\n */\n\n\nfunction createInjector(modulesToLoad, strictDi) {\n  strictDi = (strictDi === true);\n  var INSTANTIATING = {},\n      providerSuffix = 'Provider',\n      path = [],\n      loadedModules = new HashMap([], true),\n      providerCache = {\n        $provide: {\n            provider: supportObject(provider),\n            factory: supportObject(factory),\n            service: supportObject(service),\n            value: supportObject(value),\n            constant: supportObject(constant),\n            decorator: decorator\n          }\n      },\n      providerInjector = (providerCache.$injector =\n          createInternalInjector(providerCache, function(serviceName, caller) {\n            if (angular.isString(caller)) {\n              path.push(caller);\n            }\n            throw $injectorMinErr('unpr', 'Unknown provider: {0}', path.join(' <- '));\n          })),\n      instanceCache = {},\n      protoInstanceInjector =\n          createInternalInjector(instanceCache, function(serviceName, caller) {\n            var provider = providerInjector.get(serviceName + providerSuffix, caller);\n            return instanceInjector.invoke(\n                provider.$get, provider, undefined, serviceName);\n          }),\n      instanceInjector = protoInstanceInjector;\n\n  providerCache['$injector' + providerSuffix] = { $get: valueFn(protoInstanceInjector) };\n  var runBlocks = loadModules(modulesToLoad);\n  instanceInjector = protoInstanceInjector.get('$injector');\n  instanceInjector.strictDi = strictDi;\n  forEach(runBlocks, function(fn) { if (fn) instanceInjector.invoke(fn); });\n\n  return instanceInjector;\n\n  ////////////////////////////////////\n  // $provider\n  ////////////////////////////////////\n\n  function supportObject(delegate) {\n    return function(key, value) {\n      if (isObject(key)) {\n        forEach(key, reverseParams(delegate));\n      } else {\n        return delegate(key, value);\n      }\n    };\n  }\n\n  function provider(name, provider_) {\n    assertNotHasOwnProperty(name, 'service');\n    if (isFunction(provider_) || isArray(provider_)) {\n      provider_ = providerInjector.instantiate(provider_);\n    }\n    if (!provider_.$get) {\n      throw $injectorMinErr('pget', 'Provider \\'{0}\\' must define $get factory method.', name);\n    }\n    return (providerCache[name + providerSuffix] = provider_);\n  }\n\n  function enforceReturnValue(name, factory) {\n    return /** @this */ function enforcedReturnValue() {\n      var result = instanceInjector.invoke(factory, this);\n      if (isUndefined(result)) {\n        throw $injectorMinErr('undef', 'Provider \\'{0}\\' must return a value from $get factory method.', name);\n      }\n      return result;\n    };\n  }\n\n  function factory(name, factoryFn, enforce) {\n    return provider(name, {\n      $get: enforce !== false ? enforceReturnValue(name, factoryFn) : factoryFn\n    });\n  }\n\n  function service(name, constructor) {\n    return factory(name, ['$injector', function($injector) {\n      return $injector.instantiate(constructor);\n    }]);\n  }\n\n  function value(name, val) { return factory(name, valueFn(val), false); }\n\n  function constant(name, value) {\n    assertNotHasOwnProperty(name, 'constant');\n    providerCache[name] = value;\n    instanceCache[name] = value;\n  }\n\n  function decorator(serviceName, decorFn) {\n    var origProvider = providerInjector.get(serviceName + providerSuffix),\n        orig$get = origProvider.$get;\n\n    origProvider.$get = function() {\n      var origInstance = instanceInjector.invoke(orig$get, origProvider);\n      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});\n    };\n  }\n\n  ////////////////////////////////////\n  // Module Loading\n  ////////////////////////////////////\n  function loadModules(modulesToLoad) {\n    assertArg(isUndefined(modulesToLoad) || isArray(modulesToLoad), 'modulesToLoad', 'not an array');\n    var runBlocks = [], moduleFn;\n    forEach(modulesToLoad, function(module) {\n      if (loadedModules.get(module)) return;\n      loadedModules.put(module, true);\n\n      function runInvokeQueue(queue) {\n        var i, ii;\n        for (i = 0, ii = queue.length; i < ii; i++) {\n          var invokeArgs = queue[i],\n              provider = providerInjector.get(invokeArgs[0]);\n\n          provider[invokeArgs[1]].apply(provider, invokeArgs[2]);\n        }\n      }\n\n      try {\n        if (isString(module)) {\n          moduleFn = angularModule(module);\n          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);\n          runInvokeQueue(moduleFn._invokeQueue);\n          runInvokeQueue(moduleFn._configBlocks);\n        } else if (isFunction(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else if (isArray(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else {\n          assertArgFn(module, 'module');\n        }\n      } catch (e) {\n        if (isArray(module)) {\n          module = module[module.length - 1];\n        }\n        if (e.message && e.stack && e.stack.indexOf(e.message) === -1) {\n          // Safari & FF's stack traces don't contain error.message content\n          // unlike those of Chrome and IE\n          // So if stack doesn't contain message, we create a new string that contains both.\n          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.\n          // eslint-disable-next-line no-ex-assign\n          e = e.message + '\\n' + e.stack;\n        }\n        throw $injectorMinErr('modulerr', 'Failed to instantiate module {0} due to:\\n{1}',\n                  module, e.stack || e.message || e);\n      }\n    });\n    return runBlocks;\n  }\n\n  ////////////////////////////////////\n  // internal Injector\n  ////////////////////////////////////\n\n  function createInternalInjector(cache, factory) {\n\n    function getService(serviceName, caller) {\n      if (cache.hasOwnProperty(serviceName)) {\n        if (cache[serviceName] === INSTANTIATING) {\n          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',\n                    serviceName + ' <- ' + path.join(' <- '));\n        }\n        return cache[serviceName];\n      } else {\n        try {\n          path.unshift(serviceName);\n          cache[serviceName] = INSTANTIATING;\n          cache[serviceName] = factory(serviceName, caller);\n          return cache[serviceName];\n        } catch (err) {\n          if (cache[serviceName] === INSTANTIATING) {\n            delete cache[serviceName];\n          }\n          throw err;\n        } finally {\n          path.shift();\n        }\n      }\n    }\n\n\n    function injectionArgs(fn, locals, serviceName) {\n      var args = [],\n          $inject = createInjector.$$annotate(fn, strictDi, serviceName);\n\n      for (var i = 0, length = $inject.length; i < length; i++) {\n        var key = $inject[i];\n        if (typeof key !== 'string') {\n          throw $injectorMinErr('itkn',\n                  'Incorrect injection token! Expected service name as string, got {0}', key);\n        }\n        args.push(locals && locals.hasOwnProperty(key) ? locals[key] :\n                                                         getService(key, serviceName));\n      }\n      return args;\n    }\n\n    function isClass(func) {\n      // IE 9-11 do not support classes and IE9 leaks with the code below.\n      if (msie <= 11) {\n        return false;\n      }\n      // Support: Edge 12-13 only\n      // See: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/6156135/\n      return typeof func === 'function'\n        && /^(?:class\\b|constructor\\()/.test(stringifyFn(func));\n    }\n\n    function invoke(fn, self, locals, serviceName) {\n      if (typeof locals === 'string') {\n        serviceName = locals;\n        locals = null;\n      }\n\n      var args = injectionArgs(fn, locals, serviceName);\n      if (isArray(fn)) {\n        fn = fn[fn.length - 1];\n      }\n\n      if (!isClass(fn)) {\n        // http://jsperf.com/angularjs-invoke-apply-vs-switch\n        // #5388\n        return fn.apply(self, args);\n      } else {\n        args.unshift(null);\n        return new (Function.prototype.bind.apply(fn, args))();\n      }\n    }\n\n\n    function instantiate(Type, locals, serviceName) {\n      // Check if Type is annotated and use just the given function at n-1 as parameter\n      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);\n      var ctor = (isArray(Type) ? Type[Type.length - 1] : Type);\n      var args = injectionArgs(Type, locals, serviceName);\n      // Empty object at position 0 is ignored for invocation with `new`, but required.\n      args.unshift(null);\n      return new (Function.prototype.bind.apply(ctor, args))();\n    }\n\n\n    return {\n      invoke: invoke,\n      instantiate: instantiate,\n      get: getService,\n      annotate: createInjector.$$annotate,\n      has: function(name) {\n        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);\n      }\n    };\n  }\n}\n\ncreateInjector.$$annotate = annotate;\n\n/**\n * @ngdoc provider\n * @name $anchorScrollProvider\n * @this\n *\n * @description\n * Use `$anchorScrollProvider` to disable automatic scrolling whenever\n * {@link ng.$location#hash $location.hash()} changes.\n */\nfunction $AnchorScrollProvider() {\n\n  var autoScrollingEnabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $anchorScrollProvider#disableAutoScrolling\n   *\n   * @description\n   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to\n   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />\n   * Use this method to disable automatic scrolling.\n   *\n   * If automatic scrolling is disabled, one must explicitly call\n   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the\n   * current hash.\n   */\n  this.disableAutoScrolling = function() {\n    autoScrollingEnabled = false;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $anchorScroll\n   * @kind function\n   * @requires $window\n   * @requires $location\n   * @requires $rootScope\n   *\n   * @description\n   * When called, it scrolls to the element related to the specified `hash` or (if omitted) to the\n   * current value of {@link ng.$location#hash $location.hash()}, according to the rules specified\n   * in the\n   * [HTML5 spec](http://www.w3.org/html/wg/drafts/html/master/browsers.html#an-indicated-part-of-the-document).\n   *\n   * It also watches the {@link ng.$location#hash $location.hash()} and automatically scrolls to\n   * match any anchor whenever it changes. This can be disabled by calling\n   * {@link ng.$anchorScrollProvider#disableAutoScrolling $anchorScrollProvider.disableAutoScrolling()}.\n   *\n   * Additionally, you can use its {@link ng.$anchorScroll#yOffset yOffset} property to specify a\n   * vertical scroll-offset (either fixed or dynamic).\n   *\n   * @param {string=} hash The hash specifying the element to scroll to. If omitted, the value of\n   *                       {@link ng.$location#hash $location.hash()} will be used.\n   *\n   * @property {(number|function|jqLite)} yOffset\n   * If set, specifies a vertical scroll-offset. This is often useful when there are fixed\n   * positioned elements at the top of the page, such as navbars, headers etc.\n   *\n   * `yOffset` can be specified in various ways:\n   * - **number**: A fixed number of pixels to be used as offset.<br /><br />\n   * - **function**: A getter function called everytime `$anchorScroll()` is executed. Must return\n   *   a number representing the offset (in pixels).<br /><br />\n   * - **jqLite**: A jqLite/jQuery element to be used for specifying the offset. The distance from\n   *   the top of the page to the element's bottom will be used as offset.<br />\n   *   **Note**: The element will be taken into account only as long as its `position` is set to\n   *   `fixed`. This option is useful, when dealing with responsive navbars/headers that adjust\n   *   their height and/or positioning according to the viewport's size.\n   *\n   * <br />\n   * <div class=\"alert alert-warning\">\n   * In order for `yOffset` to work properly, scrolling should take place on the document's root and\n   * not some child element.\n   * </div>\n   *\n   * @example\n     <example module=\"anchorScrollExample\" name=\"anchor-scroll\">\n       <file name=\"index.html\">\n         <div id=\"scrollArea\" ng-controller=\"ScrollController\">\n           <a ng-click=\"gotoBottom()\">Go to bottom</a>\n           <a id=\"bottom\"></a> You're at the bottom!\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollExample', [])\n           .controller('ScrollController', ['$scope', '$location', '$anchorScroll',\n             function($scope, $location, $anchorScroll) {\n               $scope.gotoBottom = function() {\n                 // set the location.hash to the id of\n                 // the element you wish to scroll to.\n                 $location.hash('bottom');\n\n                 // call $anchorScroll()\n                 $anchorScroll();\n               };\n             }]);\n       </file>\n       <file name=\"style.css\">\n         #scrollArea {\n           height: 280px;\n           overflow: auto;\n         }\n\n         #bottom {\n           display: block;\n           margin-top: 2000px;\n         }\n       </file>\n     </example>\n   *\n   * <hr />\n   * The example below illustrates the use of a vertical scroll-offset (specified as a fixed value).\n   * See {@link ng.$anchorScroll#yOffset $anchorScroll.yOffset} for more details.\n   *\n   * @example\n     <example module=\"anchorScrollOffsetExample\" name=\"anchor-scroll-offset\">\n       <file name=\"index.html\">\n         <div class=\"fixed-header\" ng-controller=\"headerCtrl\">\n           <a href=\"\" ng-click=\"gotoAnchor(x)\" ng-repeat=\"x in [1,2,3,4,5]\">\n             Go to anchor {{x}}\n           </a>\n         </div>\n         <div id=\"anchor{{x}}\" class=\"anchor\" ng-repeat=\"x in [1,2,3,4,5]\">\n           Anchor {{x}} of 5\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollOffsetExample', [])\n           .run(['$anchorScroll', function($anchorScroll) {\n             $anchorScroll.yOffset = 50;   // always scroll by 50 extra pixels\n           }])\n           .controller('headerCtrl', ['$anchorScroll', '$location', '$scope',\n             function($anchorScroll, $location, $scope) {\n               $scope.gotoAnchor = function(x) {\n                 var newHash = 'anchor' + x;\n                 if ($location.hash() !== newHash) {\n                   // set the $location.hash to `newHash` and\n                   // $anchorScroll will automatically scroll to it\n                   $location.hash('anchor' + x);\n                 } else {\n                   // call $anchorScroll() explicitly,\n                   // since $location.hash hasn't changed\n                   $anchorScroll();\n                 }\n               };\n             }\n           ]);\n       </file>\n       <file name=\"style.css\">\n         body {\n           padding-top: 50px;\n         }\n\n         .anchor {\n           border: 2px dashed DarkOrchid;\n           padding: 10px 10px 200px 10px;\n         }\n\n         .fixed-header {\n           background-color: rgba(0, 0, 0, 0.2);\n           height: 50px;\n           position: fixed;\n           top: 0; left: 0; right: 0;\n         }\n\n         .fixed-header > a {\n           display: inline-block;\n           margin: 5px 15px;\n         }\n       </file>\n     </example>\n   */\n  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {\n    var document = $window.document;\n\n    // Helper function to get first anchor from a NodeList\n    // (using `Array#some()` instead of `angular#forEach()` since it's more performant\n    //  and working in all supported browsers.)\n    function getFirstAnchor(list) {\n      var result = null;\n      Array.prototype.some.call(list, function(element) {\n        if (nodeName_(element) === 'a') {\n          result = element;\n          return true;\n        }\n      });\n      return result;\n    }\n\n    function getYOffset() {\n\n      var offset = scroll.yOffset;\n\n      if (isFunction(offset)) {\n        offset = offset();\n      } else if (isElement(offset)) {\n        var elem = offset[0];\n        var style = $window.getComputedStyle(elem);\n        if (style.position !== 'fixed') {\n          offset = 0;\n        } else {\n          offset = elem.getBoundingClientRect().bottom;\n        }\n      } else if (!isNumber(offset)) {\n        offset = 0;\n      }\n\n      return offset;\n    }\n\n    function scrollTo(elem) {\n      if (elem) {\n        elem.scrollIntoView();\n\n        var offset = getYOffset();\n\n        if (offset) {\n          // `offset` is the number of pixels we should scroll UP in order to align `elem` properly.\n          // This is true ONLY if the call to `elem.scrollIntoView()` initially aligns `elem` at the\n          // top of the viewport.\n          //\n          // IF the number of pixels from the top of `elem` to the end of the page's content is less\n          // than the height of the viewport, then `elem.scrollIntoView()` will align the `elem` some\n          // way down the page.\n          //\n          // This is often the case for elements near the bottom of the page.\n          //\n          // In such cases we do not need to scroll the whole `offset` up, just the difference between\n          // the top of the element and the offset, which is enough to align the top of `elem` at the\n          // desired position.\n          var elemTop = elem.getBoundingClientRect().top;\n          $window.scrollBy(0, elemTop - offset);\n        }\n      } else {\n        $window.scrollTo(0, 0);\n      }\n    }\n\n    function scroll(hash) {\n      // Allow numeric hashes\n      hash = isString(hash) ? hash : isNumber(hash) ? hash.toString() : $location.hash();\n      var elm;\n\n      // empty hash, scroll to the top of the page\n      if (!hash) scrollTo(null);\n\n      // element with given id\n      else if ((elm = document.getElementById(hash))) scrollTo(elm);\n\n      // first anchor with given name :-D\n      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) scrollTo(elm);\n\n      // no element and hash === 'top', scroll to the top of the page\n      else if (hash === 'top') scrollTo(null);\n    }\n\n    // does not scroll when user clicks on anchor link that is currently on\n    // (no url change, no $location.hash() change), browser native does scroll\n    if (autoScrollingEnabled) {\n      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},\n        function autoScrollWatchAction(newVal, oldVal) {\n          // skip the initial scroll if $location.hash is empty\n          if (newVal === oldVal && newVal === '') return;\n\n          jqLiteDocumentLoaded(function() {\n            $rootScope.$evalAsync(scroll);\n          });\n        });\n    }\n\n    return scroll;\n  }];\n}\n\nvar $animateMinErr = minErr('$animate');\nvar ELEMENT_NODE = 1;\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction extractElementNode(element) {\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction splitClasses(classes) {\n  if (isString(classes)) {\n    classes = classes.split(' ');\n  }\n\n  // Use createMap() to prevent class assumptions involving property names in\n  // Object.prototype\n  var obj = createMap();\n  forEach(classes, function(klass) {\n    // sometimes the split leaves empty string values\n    // incase extra spaces were applied to the options\n    if (klass.length) {\n      obj[klass] = true;\n    }\n  });\n  return obj;\n}\n\n// if any other type of options value besides an Object value is\n// passed into the $animate.method() animation then this helper code\n// will be run which will ignore it. While this patch is not the\n// greatest solution to this, a lot of existing plugins depend on\n// $animate to either call the callback (< 1.2) or return a promise\n// that can be changed. This helper function ensures that the options\n// are wiped clean incase a callback function is provided.\nfunction prepareAnimateOptions(options) {\n  return isObject(options)\n      ? options\n      : {};\n}\n\nvar $$CoreAnimateJsProvider = /** @this */ function() {\n  this.$get = noop;\n};\n\n// this is prefixed with Core since it conflicts with\n// the animateQueueProvider defined in ngAnimate/animateQueue.js\nvar $$CoreAnimateQueueProvider = /** @this */ function() {\n  var postDigestQueue = new HashMap();\n  var postDigestElements = [];\n\n  this.$get = ['$$AnimateRunner', '$rootScope',\n       function($$AnimateRunner,   $rootScope) {\n    return {\n      enabled: noop,\n      on: noop,\n      off: noop,\n      pin: noop,\n\n      push: function(element, event, options, domOperation) {\n        if (domOperation) {\n          domOperation();\n        }\n\n        options = options || {};\n        if (options.from) {\n          element.css(options.from);\n        }\n        if (options.to) {\n          element.css(options.to);\n        }\n\n        if (options.addClass || options.removeClass) {\n          addRemoveClassesPostDigest(element, options.addClass, options.removeClass);\n        }\n\n        var runner = new $$AnimateRunner();\n\n        // since there are no animations to run the runner needs to be\n        // notified that the animation call is complete.\n        runner.complete();\n        return runner;\n      }\n    };\n\n\n    function updateData(data, classes, value) {\n      var changed = false;\n      if (classes) {\n        classes = isString(classes) ? classes.split(' ') :\n                  isArray(classes) ? classes : [];\n        forEach(classes, function(className) {\n          if (className) {\n            changed = true;\n            data[className] = value;\n          }\n        });\n      }\n      return changed;\n    }\n\n    function handleCSSClassChanges() {\n      forEach(postDigestElements, function(element) {\n        var data = postDigestQueue.get(element);\n        if (data) {\n          var existing = splitClasses(element.attr('class'));\n          var toAdd = '';\n          var toRemove = '';\n          forEach(data, function(status, className) {\n            var hasClass = !!existing[className];\n            if (status !== hasClass) {\n              if (status) {\n                toAdd += (toAdd.length ? ' ' : '') + className;\n              } else {\n                toRemove += (toRemove.length ? ' ' : '') + className;\n              }\n            }\n          });\n\n          forEach(element, function(elm) {\n            if (toAdd) {\n              jqLiteAddClass(elm, toAdd);\n            }\n            if (toRemove) {\n              jqLiteRemoveClass(elm, toRemove);\n            }\n          });\n          postDigestQueue.remove(element);\n        }\n      });\n      postDigestElements.length = 0;\n    }\n\n\n    function addRemoveClassesPostDigest(element, add, remove) {\n      var data = postDigestQueue.get(element) || {};\n\n      var classesAdded = updateData(data, add, true);\n      var classesRemoved = updateData(data, remove, false);\n\n      if (classesAdded || classesRemoved) {\n\n        postDigestQueue.put(element, data);\n        postDigestElements.push(element);\n\n        if (postDigestElements.length === 1) {\n          $rootScope.$$postDigest(handleCSSClassChanges);\n        }\n      }\n    }\n  }];\n};\n\n/**\n * @ngdoc provider\n * @name $animateProvider\n *\n * @description\n * Default implementation of $animate that doesn't perform any animations, instead just\n * synchronously performs DOM updates and resolves the returned runner promise.\n *\n * In order to enable animations the `ngAnimate` module has to be loaded.\n *\n * To see the functional implementation check out `src/ngAnimate/animate.js`.\n */\nvar $AnimateProvider = ['$provide', /** @this */ function($provide) {\n  var provider = this;\n\n  this.$$registeredAnimations = Object.create(null);\n\n   /**\n   * @ngdoc method\n   * @name $animateProvider#register\n   *\n   * @description\n   * Registers a new injectable animation factory function. The factory function produces the\n   * animation object which contains callback functions for each event that is expected to be\n   * animated.\n   *\n   *   * `eventFn`: `function(element, ... , doneFunction, options)`\n   *   The element to animate, the `doneFunction` and the options fed into the animation. Depending\n   *   on the type of animation additional arguments will be injected into the animation function. The\n   *   list below explains the function signatures for the different animation methods:\n   *\n   *   - setClass: function(element, addedClasses, removedClasses, doneFunction, options)\n   *   - addClass: function(element, addedClasses, doneFunction, options)\n   *   - removeClass: function(element, removedClasses, doneFunction, options)\n   *   - enter, leave, move: function(element, doneFunction, options)\n   *   - animate: function(element, fromStyles, toStyles, doneFunction, options)\n   *\n   *   Make sure to trigger the `doneFunction` once the animation is fully complete.\n   *\n   * ```js\n   *   return {\n   *     //enter, leave, move signature\n   *     eventFn : function(element, done, options) {\n   *       //code to run the animation\n   *       //once complete, then run done()\n   *       return function endFunction(wasCancelled) {\n   *         //code to cancel the animation\n   *       }\n   *     }\n   *   }\n   * ```\n   *\n   * @param {string} name The name of the animation (this is what the class-based CSS value will be compared to).\n   * @param {Function} factory The factory function that will be executed to return the animation\n   *                           object.\n   */\n  this.register = function(name, factory) {\n    if (name && name.charAt(0) !== '.') {\n      throw $animateMinErr('notcsel', 'Expecting class selector starting with \\'.\\' got \\'{0}\\'.', name);\n    }\n\n    var key = name + '-animation';\n    provider.$$registeredAnimations[name.substr(1)] = key;\n    $provide.factory(key, factory);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#classNameFilter\n   *\n   * @description\n   * Sets and/or returns the CSS class regular expression that is checked when performing\n   * an animation. Upon bootstrap the classNameFilter value is not set at all and will\n   * therefore enable $animate to attempt to perform an animation on any element that is triggered.\n   * When setting the `classNameFilter` value, animations will only be performed on elements\n   * that successfully match the filter expression. This in turn can boost performance\n   * for low-powered devices as well as applications containing a lot of structural operations.\n   * @param {RegExp=} expression The className expression which will be checked against all animations\n   * @return {RegExp} The current CSS className expression value. If null then there is no expression value\n   */\n  this.classNameFilter = function(expression) {\n    if (arguments.length === 1) {\n      this.$$classNameFilter = (expression instanceof RegExp) ? expression : null;\n      if (this.$$classNameFilter) {\n        var reservedRegex = new RegExp('(\\\\s+|\\\\/)' + NG_ANIMATE_CLASSNAME + '(\\\\s+|\\\\/)');\n        if (reservedRegex.test(this.$$classNameFilter.toString())) {\n          throw $animateMinErr('nongcls','$animateProvider.classNameFilter(regex) prohibits accepting a regex value which matches/contains the \"{0}\" CSS class.', NG_ANIMATE_CLASSNAME);\n\n        }\n      }\n    }\n    return this.$$classNameFilter;\n  };\n\n  this.$get = ['$$animateQueue', function($$animateQueue) {\n    function domInsert(element, parentElement, afterElement) {\n      // if for some reason the previous element was removed\n      // from the dom sometime before this code runs then let's\n      // just stick to using the parent element as the anchor\n      if (afterElement) {\n        var afterNode = extractElementNode(afterElement);\n        if (afterNode && !afterNode.parentNode && !afterNode.previousElementSibling) {\n          afterElement = null;\n        }\n      }\n      if (afterElement) {\n        afterElement.after(element);\n      } else {\n        parentElement.prepend(element);\n      }\n    }\n\n    /**\n     * @ngdoc service\n     * @name $animate\n     * @description The $animate service exposes a series of DOM utility methods that provide support\n     * for animation hooks. The default behavior is the application of DOM operations, however,\n     * when an animation is detected (and animations are enabled), $animate will do the heavy lifting\n     * to ensure that animation runs with the triggered DOM operation.\n     *\n     * By default $animate doesn't trigger any animations. This is because the `ngAnimate` module isn't\n     * included and only when it is active then the animation hooks that `$animate` triggers will be\n     * functional. Once active then all structural `ng-` directives will trigger animations as they perform\n     * their DOM-related operations (enter, leave and move). Other directives such as `ngClass`,\n     * `ngShow`, `ngHide` and `ngMessages` also provide support for animations.\n     *\n     * It is recommended that the`$animate` service is always used when executing DOM-related procedures within directives.\n     *\n     * To learn more about enabling animation support, click here to visit the\n     * {@link ngAnimate ngAnimate module page}.\n     */\n    return {\n      // we don't call it directly since non-existant arguments may\n      // be interpreted as null within the sub enabled function\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#on\n       * @kind function\n       * @description Sets up an event listener to fire whenever the animation event (enter, leave, move, etc...)\n       *    has fired on the given element or among any of its children. Once the listener is fired, the provided callback\n       *    is fired with the following params:\n       *\n       * ```js\n       * $animate.on('enter', container,\n       *    function callback(element, phase) {\n       *      // cool we detected an enter animation within the container\n       *    }\n       * );\n       * ```\n       *\n       * @param {string} event the animation event that will be captured (e.g. enter, leave, move, addClass, removeClass, etc...)\n       * @param {DOMElement} container the container element that will capture each of the animation events that are fired on itself\n       *     as well as among its children\n       * @param {Function} callback the callback function that will be fired when the listener is triggered\n       *\n       * The arguments present in the callback function are:\n       * * `element` - The captured DOM element that the animation was fired on.\n       * * `phase` - The phase of the animation. The two possible phases are **start** (when the animation starts) and **close** (when it ends).\n       */\n      on: $$animateQueue.on,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#off\n       * @kind function\n       * @description Deregisters an event listener based on the event which has been associated with the provided element. This method\n       * can be used in three different ways depending on the arguments:\n       *\n       * ```js\n       * // remove all the animation event listeners listening for `enter`\n       * $animate.off('enter');\n       *\n       * // remove listeners for all animation events from the container element\n       * $animate.off(container);\n       *\n       * // remove all the animation event listeners listening for `enter` on the given element and its children\n       * $animate.off('enter', container);\n       *\n       * // remove the event listener function provided by `callback` that is set\n       * // to listen for `enter` on the given `container` as well as its children\n       * $animate.off('enter', container, callback);\n       * ```\n       *\n       * @param {string|DOMElement} event|container the animation event (e.g. enter, leave, move,\n       * addClass, removeClass, etc...), or the container element. If it is the element, all other\n       * arguments are ignored.\n       * @param {DOMElement=} container the container element the event listener was placed on\n       * @param {Function=} callback the callback function that was registered as the listener\n       */\n      off: $$animateQueue.off,\n\n      /**\n       * @ngdoc method\n       * @name $animate#pin\n       * @kind function\n       * @description Associates the provided element with a host parent element to allow the element to be animated even if it exists\n       *    outside of the DOM structure of the Angular application. By doing so, any animation triggered via `$animate` can be issued on the\n       *    element despite being outside the realm of the application or within another application. Say for example if the application\n       *    was bootstrapped on an element that is somewhere inside of the `<body>` tag, but we wanted to allow for an element to be situated\n       *    as a direct child of `document.body`, then this can be achieved by pinning the element via `$animate.pin(element)`. Keep in mind\n       *    that calling `$animate.pin(element, parentElement)` will not actually insert into the DOM anywhere; it will just create the association.\n       *\n       *    Note that this feature is only active when the `ngAnimate` module is used.\n       *\n       * @param {DOMElement} element the external element that will be pinned\n       * @param {DOMElement} parentElement the host parent element that will be associated with the external element\n       */\n      pin: $$animateQueue.pin,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enabled\n       * @kind function\n       * @description Used to get and set whether animations are enabled or not on the entire application or on an element and its children. This\n       * function can be called in four ways:\n       *\n       * ```js\n       * // returns true or false\n       * $animate.enabled();\n       *\n       * // changes the enabled state for all animations\n       * $animate.enabled(false);\n       * $animate.enabled(true);\n       *\n       * // returns true or false if animations are enabled for an element\n       * $animate.enabled(element);\n       *\n       * // changes the enabled state for an element and its children\n       * $animate.enabled(element, true);\n       * $animate.enabled(element, false);\n       * ```\n       *\n       * @param {DOMElement=} element the element that will be considered for checking/setting the enabled state\n       * @param {boolean=} enabled whether or not the animations will be enabled for the element\n       *\n       * @return {boolean} whether or not animations are enabled\n       */\n      enabled: $$animateQueue.enabled,\n\n      /**\n       * @ngdoc method\n       * @name $animate#cancel\n       * @kind function\n       * @description Cancels the provided animation.\n       *\n       * @param {Promise} animationPromise The animation promise that is returned when an animation is started.\n       */\n      cancel: function(runner) {\n        if (runner.end) {\n          runner.end();\n        }\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enter\n       * @kind function\n       * @description Inserts the element into the DOM either after the `after` element (if provided) or\n       *   as the first child within the `parent` element and then triggers an animation.\n       *   A promise is returned that will be resolved during the next digest once the animation\n       *   has completed.\n       *\n       * @param {DOMElement} element the element which will be inserted into the DOM\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      enter: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'enter', prepareAnimateOptions(options));\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#move\n       * @kind function\n       * @description Inserts (moves) the element into its new position in the DOM either after\n       *   the `after` element (if provided) or as the first child within the `parent` element\n       *   and then triggers an animation. A promise is returned that will be resolved\n       *   during the next digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be moved into the new DOM position\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      move: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'move', prepareAnimateOptions(options));\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#leave\n       * @kind function\n       * @description Triggers an animation and then removes the element from the DOM.\n       * When the function is called a promise is returned that will be resolved during the next\n       * digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be removed from the DOM\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      leave: function(element, options) {\n        return $$animateQueue.push(element, 'leave', prepareAnimateOptions(options), function() {\n          element.remove();\n        });\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#addClass\n       * @kind function\n       *\n       * @description Triggers an addClass animation surrounding the addition of the provided CSS class(es). Upon\n       *   execution, the addClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element already contains the CSS class or if the class is removed at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      addClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addclass, className);\n        return $$animateQueue.push(element, 'addClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#removeClass\n       * @kind function\n       *\n       * @description Triggers a removeClass animation surrounding the removal of the provided CSS class(es). Upon\n       *   execution, the removeClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element does not contain the CSS class or if the class is added at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      removeClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.removeClass = mergeClasses(options.removeClass, className);\n        return $$animateQueue.push(element, 'removeClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#setClass\n       * @kind function\n       *\n       * @description Performs both the addition and removal of a CSS classes on an element and (during the process)\n       *    triggers an animation surrounding the class addition/removal. Much like `$animate.addClass` and\n       *    `$animate.removeClass`, `setClass` will only evaluate the classes being added/removed once a digest has\n       *    passed. Note that class-based animations are treated differently compared to structural animations\n       *    (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *    depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} add the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {string} remove the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      setClass: function(element, add, remove, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addClass, add);\n        options.removeClass = mergeClasses(options.removeClass, remove);\n        return $$animateQueue.push(element, 'setClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#animate\n       * @kind function\n       *\n       * @description Performs an inline animation on the element which applies the provided to and from CSS styles to the element.\n       * If any detected CSS transition, keyframe or JavaScript matches the provided className value, then the animation will take\n       * on the provided styles. For example, if a transition animation is set for the given className, then the provided `from` and\n       * `to` styles will be applied alongside the given transition. If the CSS style provided in `from` does not have a corresponding\n       * style in `to`, the style in `from` is applied immediately, and no animation is run.\n       * If a JavaScript animation is detected then the provided styles will be given in as function parameters into the `animate`\n       * method (or as part of the `options` parameter):\n       *\n       * ```js\n       * ngModule.animation('.my-inline-animation', function() {\n       *   return {\n       *     animate : function(element, from, to, done, options) {\n       *       //animation\n       *       done();\n       *     }\n       *   }\n       * });\n       * ```\n       *\n       * @param {DOMElement} element the element which the CSS styles will be applied to\n       * @param {object} from the from (starting) CSS styles that will be applied to the element and across the animation.\n       * @param {object} to the to (destination) CSS styles that will be applied to the element and across the animation.\n       * @param {string=} className an optional CSS class that will be applied to the element for the duration of the animation. If\n       *    this value is left as empty then a CSS class of `ng-inline-animate` will be applied to the element.\n       *    (Note that if no animation is detected then this value will not be applied to the element.)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      animate: function(element, from, to, className, options) {\n        options = prepareAnimateOptions(options);\n        options.from = options.from ? extend(options.from, from) : from;\n        options.to   = options.to   ? extend(options.to, to)     : to;\n\n        className = className || 'ng-inline-animate';\n        options.tempClasses = mergeClasses(options.tempClasses, className);\n        return $$animateQueue.push(element, 'animate', options);\n      }\n    };\n  }];\n}];\n\nvar $$AnimateAsyncRunFactoryProvider = /** @this */ function() {\n  this.$get = ['$$rAF', function($$rAF) {\n    var waitQueue = [];\n\n    function waitForTick(fn) {\n      waitQueue.push(fn);\n      if (waitQueue.length > 1) return;\n      $$rAF(function() {\n        for (var i = 0; i < waitQueue.length; i++) {\n          waitQueue[i]();\n        }\n        waitQueue = [];\n      });\n    }\n\n    return function() {\n      var passed = false;\n      waitForTick(function() {\n        passed = true;\n      });\n      return function(callback) {\n        if (passed) {\n          callback();\n        } else {\n          waitForTick(callback);\n        }\n      };\n    };\n  }];\n};\n\nvar $$AnimateRunnerFactoryProvider = /** @this */ function() {\n  this.$get = ['$q', '$sniffer', '$$animateAsyncRun', '$document', '$timeout',\n       function($q,   $sniffer,   $$animateAsyncRun,   $document,   $timeout) {\n\n    var INITIAL_STATE = 0;\n    var DONE_PENDING_STATE = 1;\n    var DONE_COMPLETE_STATE = 2;\n\n    AnimateRunner.chain = function(chain, callback) {\n      var index = 0;\n\n      next();\n      function next() {\n        if (index === chain.length) {\n          callback(true);\n          return;\n        }\n\n        chain[index](function(response) {\n          if (response === false) {\n            callback(false);\n            return;\n          }\n          index++;\n          next();\n        });\n      }\n    };\n\n    AnimateRunner.all = function(runners, callback) {\n      var count = 0;\n      var status = true;\n      forEach(runners, function(runner) {\n        runner.done(onProgress);\n      });\n\n      function onProgress(response) {\n        status = status && response;\n        if (++count === runners.length) {\n          callback(status);\n        }\n      }\n    };\n\n    function AnimateRunner(host) {\n      this.setHost(host);\n\n      var rafTick = $$animateAsyncRun();\n      var timeoutTick = function(fn) {\n        $timeout(fn, 0, false);\n      };\n\n      this._doneCallbacks = [];\n      this._tick = function(fn) {\n        var doc = $document[0];\n\n        // the document may not be ready or attached\n        // to the module for some internal tests\n        if (doc && doc.hidden) {\n          timeoutTick(fn);\n        } else {\n          rafTick(fn);\n        }\n      };\n      this._state = 0;\n    }\n\n    AnimateRunner.prototype = {\n      setHost: function(host) {\n        this.host = host || {};\n      },\n\n      done: function(fn) {\n        if (this._state === DONE_COMPLETE_STATE) {\n          fn();\n        } else {\n          this._doneCallbacks.push(fn);\n        }\n      },\n\n      progress: noop,\n\n      getPromise: function() {\n        if (!this.promise) {\n          var self = this;\n          this.promise = $q(function(resolve, reject) {\n            self.done(function(status) {\n              if (status === false) {\n                reject();\n              } else {\n                resolve();\n              }\n            });\n          });\n        }\n        return this.promise;\n      },\n\n      then: function(resolveHandler, rejectHandler) {\n        return this.getPromise().then(resolveHandler, rejectHandler);\n      },\n\n      'catch': function(handler) {\n        return this.getPromise()['catch'](handler);\n      },\n\n      'finally': function(handler) {\n        return this.getPromise()['finally'](handler);\n      },\n\n      pause: function() {\n        if (this.host.pause) {\n          this.host.pause();\n        }\n      },\n\n      resume: function() {\n        if (this.host.resume) {\n          this.host.resume();\n        }\n      },\n\n      end: function() {\n        if (this.host.end) {\n          this.host.end();\n        }\n        this._resolve(true);\n      },\n\n      cancel: function() {\n        if (this.host.cancel) {\n          this.host.cancel();\n        }\n        this._resolve(false);\n      },\n\n      complete: function(response) {\n        var self = this;\n        if (self._state === INITIAL_STATE) {\n          self._state = DONE_PENDING_STATE;\n          self._tick(function() {\n            self._resolve(response);\n          });\n        }\n      },\n\n      _resolve: function(response) {\n        if (this._state !== DONE_COMPLETE_STATE) {\n          forEach(this._doneCallbacks, function(fn) {\n            fn(response);\n          });\n          this._doneCallbacks.length = 0;\n          this._state = DONE_COMPLETE_STATE;\n        }\n      }\n    };\n\n    return AnimateRunner;\n  }];\n};\n\n/* exported $CoreAnimateCssProvider */\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n * @this\n *\n * @description\n * This is the core version of `$animateCss`. By default, only when the `ngAnimate` is included,\n * then the `$animateCss` service will actually perform animations.\n *\n * Click here {@link ngAnimate.$animateCss to read the documentation for $animateCss}.\n */\nvar $CoreAnimateCssProvider = function() {\n  this.$get = ['$$rAF', '$q', '$$AnimateRunner', function($$rAF, $q, $$AnimateRunner) {\n\n    return function(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = copy(options);\n      }\n\n      // there is no point in applying the styles since\n      // there is no animation that goes on at all in\n      // this version of $animateCss.\n      if (options.cleanupStyles) {\n        options.from = options.to = null;\n      }\n\n      if (options.from) {\n        element.css(options.from);\n        options.from = null;\n      }\n\n      var closed, runner = new $$AnimateRunner();\n      return {\n        start: run,\n        end: run\n      };\n\n      function run() {\n        $$rAF(function() {\n          applyAnimationContents();\n          if (!closed) {\n            runner.complete();\n          }\n          closed = true;\n        });\n        return runner;\n      }\n\n      function applyAnimationContents() {\n        if (options.addClass) {\n          element.addClass(options.addClass);\n          options.addClass = null;\n        }\n        if (options.removeClass) {\n          element.removeClass(options.removeClass);\n          options.removeClass = null;\n        }\n        if (options.to) {\n          element.css(options.to);\n          options.to = null;\n        }\n      }\n    };\n  }];\n};\n\n/* global stripHash: true */\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n * @requires $log\n * @description\n * This object has two goals:\n *\n * - hide all the global state in the browser caused by the window object\n * - abstract away all the browser specific features and inconsistencies\n *\n * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`\n * service, which can be used for convenient testing of the application without the interaction with\n * the real browser apis.\n */\n/**\n * @param {object} window The global window object.\n * @param {object} document jQuery wrapped document.\n * @param {object} $log window.console or an object with the same interface.\n * @param {object} $sniffer $sniffer service\n */\nfunction Browser(window, document, $log, $sniffer) {\n  var self = this,\n      location = window.location,\n      history = window.history,\n      setTimeout = window.setTimeout,\n      clearTimeout = window.clearTimeout,\n      pendingDeferIds = {};\n\n  self.isMock = false;\n\n  var outstandingRequestCount = 0;\n  var outstandingRequestCallbacks = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = completeOutstandingRequest;\n  self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };\n\n  /**\n   * Executes the `fn` function(supports currying) and decrements the `outstandingRequestCallbacks`\n   * counter. If the counter reaches 0, all the `outstandingRequestCallbacks` are executed.\n   */\n  function completeOutstandingRequest(fn) {\n    try {\n      fn.apply(null, sliceArgs(arguments, 1));\n    } finally {\n      outstandingRequestCount--;\n      if (outstandingRequestCount === 0) {\n        while (outstandingRequestCallbacks.length) {\n          try {\n            outstandingRequestCallbacks.pop()();\n          } catch (e) {\n            $log.error(e);\n          }\n        }\n      }\n    }\n  }\n\n  function getHash(url) {\n    var index = url.indexOf('#');\n    return index === -1 ? '' : url.substr(index);\n  }\n\n  /**\n   * @private\n   * Note: this method is used only by scenario runner\n   * TODO(vojta): prefix this method with $$ ?\n   * @param {function()} callback Function that will be called when no outstanding request\n   */\n  self.notifyWhenNoOutstandingRequests = function(callback) {\n    if (outstandingRequestCount === 0) {\n      callback();\n    } else {\n      outstandingRequestCallbacks.push(callback);\n    }\n  };\n\n  //////////////////////////////////////////////////////////////\n  // URL API\n  //////////////////////////////////////////////////////////////\n\n  var cachedState, lastHistoryState,\n      lastBrowserUrl = location.href,\n      baseElement = document.find('base'),\n      pendingLocation = null,\n      getCurrentState = !$sniffer.history ? noop : function getCurrentState() {\n        try {\n          return history.state;\n        } catch (e) {\n          // MSIE can reportedly throw when there is no state (UNCONFIRMED).\n        }\n      };\n\n  cacheState();\n  lastHistoryState = cachedState;\n\n  /**\n   * @name $browser#url\n   *\n   * @description\n   * GETTER:\n   * Without any argument, this method just returns current value of location.href.\n   *\n   * SETTER:\n   * With at least one argument, this method sets url to new value.\n   * If html5 history api supported, pushState/replaceState is used, otherwise\n   * location.href/location.replace is used.\n   * Returns its own instance to allow chaining\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to change url.\n   *\n   * @param {string} url New url (when used as setter)\n   * @param {boolean=} replace Should new url replace current history record?\n   * @param {object=} state object to use with pushState/replaceState\n   */\n  self.url = function(url, replace, state) {\n    // In modern browsers `history.state` is `null` by default; treating it separately\n    // from `undefined` would cause `$browser.url('/foo')` to change `history.state`\n    // to undefined via `pushState`. Instead, let's change `undefined` to `null` here.\n    if (isUndefined(state)) {\n      state = null;\n    }\n\n    // Android Browser BFCache causes location, history reference to become stale.\n    if (location !== window.location) location = window.location;\n    if (history !== window.history) history = window.history;\n\n    // setter\n    if (url) {\n      var sameState = lastHistoryState === state;\n\n      // Don't change anything if previous and current URLs and states match. This also prevents\n      // IE<10 from getting into redirect loop when in LocationHashbangInHtml5Url mode.\n      // See https://github.com/angular/angular.js/commit/ffb2701\n      if (lastBrowserUrl === url && (!$sniffer.history || sameState)) {\n        return self;\n      }\n      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);\n      lastBrowserUrl = url;\n      lastHistoryState = state;\n      // Don't use history API if only the hash changed\n      // due to a bug in IE10/IE11 which leads\n      // to not firing a `hashchange` nor `popstate` event\n      // in some cases (see #9143).\n      if ($sniffer.history && (!sameBase || !sameState)) {\n        history[replace ? 'replaceState' : 'pushState'](state, '', url);\n        cacheState();\n        // Do the assignment again so that those two variables are referentially identical.\n        lastHistoryState = cachedState;\n      } else {\n        if (!sameBase) {\n          pendingLocation = url;\n        }\n        if (replace) {\n          location.replace(url);\n        } else if (!sameBase) {\n          location.href = url;\n        } else {\n          location.hash = getHash(url);\n        }\n        if (location.href !== url) {\n          pendingLocation = url;\n        }\n      }\n      if (pendingLocation) {\n        pendingLocation = url;\n      }\n      return self;\n    // getter\n    } else {\n      // - pendingLocation is needed as browsers don't allow to read out\n      //   the new location.href if a reload happened or if there is a bug like in iOS 9 (see\n      //   https://openradar.appspot.com/22186109).\n      // - the replacement is a workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=407172\n      return pendingLocation || location.href.replace(/%27/g,'\\'');\n    }\n  };\n\n  /**\n   * @name $browser#state\n   *\n   * @description\n   * This method is a getter.\n   *\n   * Return history.state or null if history.state is undefined.\n   *\n   * @returns {object} state\n   */\n  self.state = function() {\n    return cachedState;\n  };\n\n  var urlChangeListeners = [],\n      urlChangeInit = false;\n\n  function cacheStateAndFireUrlChange() {\n    pendingLocation = null;\n    cacheState();\n    fireUrlChange();\n  }\n\n  // This variable should be used *only* inside the cacheState function.\n  var lastCachedState = null;\n  function cacheState() {\n    // This should be the only place in $browser where `history.state` is read.\n    cachedState = getCurrentState();\n    cachedState = isUndefined(cachedState) ? null : cachedState;\n\n    // Prevent callbacks fo fire twice if both hashchange & popstate were fired.\n    if (equals(cachedState, lastCachedState)) {\n      cachedState = lastCachedState;\n    }\n    lastCachedState = cachedState;\n  }\n\n  function fireUrlChange() {\n    if (lastBrowserUrl === self.url() && lastHistoryState === cachedState) {\n      return;\n    }\n\n    lastBrowserUrl = self.url();\n    lastHistoryState = cachedState;\n    forEach(urlChangeListeners, function(listener) {\n      listener(self.url(), cachedState);\n    });\n  }\n\n  /**\n   * @name $browser#onUrlChange\n   *\n   * @description\n   * Register callback function that will be called, when url changes.\n   *\n   * It's only called when the url is changed from outside of angular:\n   * - user types different url into address bar\n   * - user clicks on history (forward/back) button\n   * - user clicks on a link\n   *\n   * It's not called when url is changed by $browser.url() method\n   *\n   * The listener gets called with new url as parameter.\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to monitor url changes in angular apps.\n   *\n   * @param {function(string)} listener Listener function to be called when url changes.\n   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.\n   */\n  self.onUrlChange = function(callback) {\n    // TODO(vojta): refactor to use node's syntax for events\n    if (!urlChangeInit) {\n      // We listen on both (hashchange/popstate) when available, as some browsers (e.g. Opera)\n      // don't fire popstate when user change the address bar and don't fire hashchange when url\n      // changed by push/replaceState\n\n      // html5 history api - popstate event\n      if ($sniffer.history) jqLite(window).on('popstate', cacheStateAndFireUrlChange);\n      // hashchange event\n      jqLite(window).on('hashchange', cacheStateAndFireUrlChange);\n\n      urlChangeInit = true;\n    }\n\n    urlChangeListeners.push(callback);\n    return callback;\n  };\n\n  /**\n   * @private\n   * Remove popstate and hashchange handler from window.\n   *\n   * NOTE: this api is intended for use only by $rootScope.\n   */\n  self.$$applicationDestroyed = function() {\n    jqLite(window).off('hashchange popstate', cacheStateAndFireUrlChange);\n  };\n\n  /**\n   * Checks whether the url has changed outside of Angular.\n   * Needs to be exported to be able to check for changes that have been done in sync,\n   * as hashchange/popstate events fire in async.\n   */\n  self.$$checkUrlChange = fireUrlChange;\n\n  //////////////////////////////////////////////////////////////\n  // Misc API\n  //////////////////////////////////////////////////////////////\n\n  /**\n   * @name $browser#baseHref\n   *\n   * @description\n   * Returns current <base href>\n   * (always relative - without domain)\n   *\n   * @returns {string} The current base href\n   */\n  self.baseHref = function() {\n    var href = baseElement.attr('href');\n    return href ? href.replace(/^(https?:)?\\/\\/[^/]*/, '') : '';\n  };\n\n  /**\n   * @name $browser#defer\n   * @param {function()} fn A function, who's execution should be deferred.\n   * @param {number=} [delay=0] of milliseconds to defer the function execution.\n   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.\n   *\n   * @description\n   * Executes a fn asynchronously via `setTimeout(fn, delay)`.\n   *\n   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using\n   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed\n   * via `$browser.defer.flush()`.\n   *\n   */\n  self.defer = function(fn, delay) {\n    var timeoutId;\n    outstandingRequestCount++;\n    timeoutId = setTimeout(function() {\n      delete pendingDeferIds[timeoutId];\n      completeOutstandingRequest(fn);\n    }, delay || 0);\n    pendingDeferIds[timeoutId] = true;\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.cancel\n   *\n   * @description\n   * Cancels a deferred task identified with `deferId`.\n   *\n   * @param {*} deferId Token returned by the `$browser.defer` function.\n   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n   *                    canceled.\n   */\n  self.defer.cancel = function(deferId) {\n    if (pendingDeferIds[deferId]) {\n      delete pendingDeferIds[deferId];\n      clearTimeout(deferId);\n      completeOutstandingRequest(noop);\n      return true;\n    }\n    return false;\n  };\n\n}\n\n/** @this */\nfunction $BrowserProvider() {\n  this.$get = ['$window', '$log', '$sniffer', '$document',\n      function($window, $log, $sniffer, $document) {\n        return new Browser($window, $document, $log, $sniffer);\n      }];\n}\n\n/**\n * @ngdoc service\n * @name $cacheFactory\n * @this\n *\n * @description\n * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to\n * them.\n *\n * ```js\n *\n *  var cache = $cacheFactory('cacheId');\n *  expect($cacheFactory.get('cacheId')).toBe(cache);\n *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();\n *\n *  cache.put(\"key\", \"value\");\n *  cache.put(\"another key\", \"another value\");\n *\n *  // We've specified no options on creation\n *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});\n *\n * ```\n *\n *\n * @param {string} cacheId Name or id of the newly created cache.\n * @param {object=} options Options object that specifies the cache behavior. Properties:\n *\n *   - `{number=}` `capacity` — turns the cache into LRU cache.\n *\n * @returns {object} Newly created cache object with the following set of methods:\n *\n * - `{object}` `info()` — Returns id, size, and options of cache.\n * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns\n *   it.\n * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.\n * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.\n * - `{void}` `removeAll()` — Removes all cached values.\n * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.\n *\n * @example\n   <example module=\"cacheExampleApp\" name=\"cache-factory\">\n     <file name=\"index.html\">\n       <div ng-controller=\"CacheController\">\n         <input ng-model=\"newCacheKey\" placeholder=\"Key\">\n         <input ng-model=\"newCacheValue\" placeholder=\"Value\">\n         <button ng-click=\"put(newCacheKey, newCacheValue)\">Cache</button>\n\n         <p ng-if=\"keys.length\">Cached Values</p>\n         <div ng-repeat=\"key in keys\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"cache.get(key)\"></b>\n         </div>\n\n         <p>Cache Info</p>\n         <div ng-repeat=\"(key, value) in cache.info()\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"value\"></b>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('cacheExampleApp', []).\n         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {\n           $scope.keys = [];\n           $scope.cache = $cacheFactory('cacheId');\n           $scope.put = function(key, value) {\n             if (angular.isUndefined($scope.cache.get(key))) {\n               $scope.keys.push(key);\n             }\n             $scope.cache.put(key, angular.isUndefined(value) ? null : value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       p {\n         margin: 10px 0 3px;\n       }\n     </file>\n   </example>\n */\nfunction $CacheFactoryProvider() {\n\n  this.$get = function() {\n    var caches = {};\n\n    function cacheFactory(cacheId, options) {\n      if (cacheId in caches) {\n        throw minErr('$cacheFactory')('iid', 'CacheId \\'{0}\\' is already taken!', cacheId);\n      }\n\n      var size = 0,\n          stats = extend({}, options, {id: cacheId}),\n          data = createMap(),\n          capacity = (options && options.capacity) || Number.MAX_VALUE,\n          lruHash = createMap(),\n          freshEnd = null,\n          staleEnd = null;\n\n      /**\n       * @ngdoc type\n       * @name $cacheFactory.Cache\n       *\n       * @description\n       * A cache object used to store and retrieve data, primarily used by\n       * {@link $http $http} and the {@link ng.directive:script script} directive to cache\n       * templates and other data.\n       *\n       * ```js\n       *  angular.module('superCache')\n       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {\n       *      return $cacheFactory('super-cache');\n       *    }]);\n       * ```\n       *\n       * Example test:\n       *\n       * ```js\n       *  it('should behave like a cache', inject(function(superCache) {\n       *    superCache.put('key', 'value');\n       *    superCache.put('another key', 'another value');\n       *\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 2\n       *    });\n       *\n       *    superCache.remove('another key');\n       *    expect(superCache.get('another key')).toBeUndefined();\n       *\n       *    superCache.removeAll();\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 0\n       *    });\n       *  }));\n       * ```\n       */\n      return (caches[cacheId] = {\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#put\n         * @kind function\n         *\n         * @description\n         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be\n         * retrieved later, and incrementing the size of the cache if the key was not already\n         * present in the cache. If behaving like an LRU cache, it will also remove stale\n         * entries from the set.\n         *\n         * It will not insert undefined values into the cache.\n         *\n         * @param {string} key the key under which the cached data is stored.\n         * @param {*} value the value to store alongside the key. If it is undefined, the key\n         *    will not be stored.\n         * @returns {*} the value stored.\n         */\n        put: function(key, value) {\n          if (isUndefined(value)) return;\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});\n\n            refresh(lruEntry);\n          }\n\n          if (!(key in data)) size++;\n          data[key] = value;\n\n          if (size > capacity) {\n            this.remove(staleEnd.key);\n          }\n\n          return value;\n        },\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#get\n         * @kind function\n         *\n         * @description\n         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the data to be retrieved\n         * @returns {*} the value stored.\n         */\n        get: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            refresh(lruEntry);\n          }\n\n          return data[key];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#remove\n         * @kind function\n         *\n         * @description\n         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the entry to be removed\n         */\n        remove: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            if (lruEntry === freshEnd) freshEnd = lruEntry.p;\n            if (lruEntry === staleEnd) staleEnd = lruEntry.n;\n            link(lruEntry.n,lruEntry.p);\n\n            delete lruHash[key];\n          }\n\n          if (!(key in data)) return;\n\n          delete data[key];\n          size--;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#removeAll\n         * @kind function\n         *\n         * @description\n         * Clears the cache object of any entries.\n         */\n        removeAll: function() {\n          data = createMap();\n          size = 0;\n          lruHash = createMap();\n          freshEnd = staleEnd = null;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#destroy\n         * @kind function\n         *\n         * @description\n         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,\n         * removing it from the {@link $cacheFactory $cacheFactory} set.\n         */\n        destroy: function() {\n          data = null;\n          stats = null;\n          lruHash = null;\n          delete caches[cacheId];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#info\n         * @kind function\n         *\n         * @description\n         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.\n         *\n         * @returns {object} an object with the following properties:\n         *   <ul>\n         *     <li>**id**: the id of the cache instance</li>\n         *     <li>**size**: the number of entries kept in the cache instance</li>\n         *     <li>**...**: any additional properties from the options object when creating the\n         *       cache.</li>\n         *   </ul>\n         */\n        info: function() {\n          return extend({}, stats, {size: size});\n        }\n      });\n\n\n      /**\n       * makes the `entry` the freshEnd of the LRU linked list\n       */\n      function refresh(entry) {\n        if (entry !== freshEnd) {\n          if (!staleEnd) {\n            staleEnd = entry;\n          } else if (staleEnd === entry) {\n            staleEnd = entry.n;\n          }\n\n          link(entry.n, entry.p);\n          link(entry, freshEnd);\n          freshEnd = entry;\n          freshEnd.n = null;\n        }\n      }\n\n\n      /**\n       * bidirectionally links two entries of the LRU linked list\n       */\n      function link(nextEntry, prevEntry) {\n        if (nextEntry !== prevEntry) {\n          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify\n          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify\n        }\n      }\n    }\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#info\n   *\n   * @description\n   * Get information about all the caches that have been created\n   *\n   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`\n   */\n    cacheFactory.info = function() {\n      var info = {};\n      forEach(caches, function(cache, cacheId) {\n        info[cacheId] = cache.info();\n      });\n      return info;\n    };\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#get\n   *\n   * @description\n   * Get access to a cache object by the `cacheId` used when it was created.\n   *\n   * @param {string} cacheId Name or id of a cache to access.\n   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.\n   */\n    cacheFactory.get = function(cacheId) {\n      return caches[cacheId];\n    };\n\n\n    return cacheFactory;\n  };\n}\n\n/**\n * @ngdoc service\n * @name $templateCache\n * @this\n *\n * @description\n * The first time a template is used, it is loaded in the template cache for quick retrieval. You\n * can load templates directly into the cache in a `script` tag, or by consuming the\n * `$templateCache` service directly.\n *\n * Adding via the `script` tag:\n *\n * ```html\n *   <script type=\"text/ng-template\" id=\"templateId.html\">\n *     <p>This is the content of the template</p>\n *   </script>\n * ```\n *\n * **Note:** the `script` tag containing the template does not need to be included in the `head` of\n * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (IE,\n * element with ng-app attribute), otherwise the template will be ignored.\n *\n * Adding via the `$templateCache` service:\n *\n * ```js\n * var myApp = angular.module('myApp', []);\n * myApp.run(function($templateCache) {\n *   $templateCache.put('templateId.html', 'This is the content of the template');\n * });\n * ```\n *\n * To retrieve the template later, simply use it in your component:\n * ```js\n * myApp.component('myComponent', {\n *    templateUrl: 'templateId.html'\n * });\n * ```\n *\n * or get it via the `$templateCache` service:\n * ```js\n * $templateCache.get('templateId.html')\n * ```\n *\n * See {@link ng.$cacheFactory $cacheFactory}.\n *\n */\nfunction $TemplateCacheProvider() {\n  this.$get = ['$cacheFactory', function($cacheFactory) {\n    return $cacheFactory('templates');\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables like document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!\n *\n * DOM-related variables:\n *\n * - \"node\" - DOM Node\n * - \"element\" - DOM Element or Node\n * - \"$node\" or \"$element\" - jqLite-wrapped node or element\n *\n *\n * Compiler related stuff:\n *\n * - \"linkFn\" - linking fn of a single directive\n * - \"nodeLinkFn\" - function that aggregates all linking fns for a particular node\n * - \"childLinkFn\" -  function that aggregates all linking fns for child nodes of a particular node\n * - \"compositeLinkFn\" - function that aggregates all linking fns for a compilation root (nodeList)\n */\n\n\n/**\n * @ngdoc service\n * @name $compile\n * @kind function\n *\n * @description\n * Compiles an HTML string or DOM into a template and produces a template function, which\n * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.\n *\n * The compilation is a process of walking the DOM tree and matching DOM elements to\n * {@link ng.$compileProvider#directive directives}.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** This document is an in-depth reference of all directive options.\n * For a gentle introduction to directives with examples of common use cases,\n * see the {@link guide/directive directive guide}.\n * </div>\n *\n * ## Comprehensive Directive API\n *\n * There are many different options for a directive.\n *\n * The difference resides in the return value of the factory function.\n * You can either return a {@link $compile#directive-definition-object Directive Definition Object (see below)}\n * that defines the directive properties, or just the `postLink` function (all other properties will have\n * the default values).\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's recommended to use the \"directive definition object\" form.\n * </div>\n *\n * Here's an example directive declared with a Directive Definition Object:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       {@link $compile#-priority- priority}: 0,\n *       {@link $compile#-template- template}: '<div></div>', // or // function(tElement, tAttrs) { ... },\n *       // or\n *       // {@link $compile#-templateurl- templateUrl}: 'directive.html', // or // function(tElement, tAttrs) { ... },\n *       {@link $compile#-transclude- transclude}: false,\n *       {@link $compile#-restrict- restrict}: 'A',\n *       {@link $compile#-templatenamespace- templateNamespace}: 'html',\n *       {@link $compile#-scope- scope}: false,\n *       {@link $compile#-controller- controller}: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },\n *       {@link $compile#-controlleras- controllerAs}: 'stringIdentifier',\n *       {@link $compile#-bindtocontroller- bindToController}: false,\n *       {@link $compile#-require- require}: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],\n *       {@link $compile#-multielement- multiElement}: false,\n *       {@link $compile#-compile- compile}: function compile(tElement, tAttrs, transclude) {\n *         return {\n *            {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *            {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *         }\n *         // or\n *         // return function postLink( ... ) { ... }\n *       },\n *       // or\n *       // {@link $compile#-link- link}: {\n *       //  {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *       //  {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *       // }\n *       // or\n *       // {@link $compile#-link- link}: function postLink( ... ) { ... }\n *     };\n *     return directiveDefinitionObject;\n *   });\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Any unspecified options will use the default value. You can see the default values below.\n * </div>\n *\n * Therefore the above can be simplified as:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       link: function postLink(scope, iElement, iAttrs) { ... }\n *     };\n *     return directiveDefinitionObject;\n *     // or\n *     // return function postLink(scope, iElement, iAttrs) { ... }\n *   });\n * ```\n *\n * ### Life-cycle hooks\n * Directive controllers can provide the following methods that are called by Angular at points in the life-cycle of the\n * directive:\n * * `$onInit()` - Called on each controller after all the controllers on an element have been constructed and\n *   had their bindings initialized (and before the pre &amp; post linking functions for the directives on\n *   this element). This is a good place to put initialization code for your controller.\n * * `$onChanges(changesObj)` - Called whenever one-way (`<`) or interpolation (`@`) bindings are updated. The\n *   `changesObj` is a hash whose keys are the names of the bound properties that have changed, and the values are an\n *   object of the form `{ currentValue, previousValue, isFirstChange() }`. Use this hook to trigger updates within a\n *   component such as cloning the bound value to prevent accidental mutation of the outer value.\n * * `$doCheck()` - Called on each turn of the digest cycle. Provides an opportunity to detect and act on\n *   changes. Any actions that you wish to take in response to the changes that you detect must be\n *   invoked from this hook; implementing this has no effect on when `$onChanges` is called. For example, this hook\n *   could be useful if you wish to perform a deep equality check, or to check a Date object, changes to which would not\n *   be detected by Angular's change detector and thus not trigger `$onChanges`. This hook is invoked with no arguments;\n *   if detecting changes, you must store the previous value(s) for comparison to the current values.\n * * `$onDestroy()` - Called on a controller when its containing scope is destroyed. Use this hook for releasing\n *   external resources, watches and event handlers. Note that components have their `$onDestroy()` hooks called in\n *   the same order as the `$scope.$broadcast` events are triggered, which is top down. This means that parent\n *   components will have their `$onDestroy()` hook called before child components.\n * * `$postLink()` - Called after this controller's element and its children have been linked. Similar to the post-link\n *   function this hook can be used to set up DOM event handlers and do direct DOM manipulation.\n *   Note that child elements that contain `templateUrl` directives will not have been compiled and linked since\n *   they are waiting for their template to load asynchronously and their own compilation and linking has been\n *   suspended until that occurs.\n *\n * #### Comparison with Angular 2 life-cycle hooks\n * Angular 2 also uses life-cycle hooks for its components. While the Angular 1 life-cycle hooks are similar there are\n * some differences that you should be aware of, especially when it comes to moving your code from Angular 1 to Angular 2:\n *\n * * Angular 1 hooks are prefixed with `$`, such as `$onInit`. Angular 2 hooks are prefixed with `ng`, such as `ngOnInit`.\n * * Angular 1 hooks can be defined on the controller prototype or added to the controller inside its constructor.\n *   In Angular 2 you can only define hooks on the prototype of the Component class.\n * * Due to the differences in change-detection, you may get many more calls to `$doCheck` in Angular 1 than you would to\n *   `ngDoCheck` in Angular 2\n * * Changes to the model inside `$doCheck` will trigger new turns of the digest loop, which will cause the changes to be\n *   propagated throughout the application.\n *   Angular 2 does not allow the `ngDoCheck` hook to trigger a change outside of the component. It will either throw an\n *   error or do nothing depending upon the state of `enableProdMode()`.\n *\n * #### Life-cycle hook examples\n *\n * This example shows how you can check for mutations to a Date object even though the identity of the object\n * has not changed.\n *\n * <example name=\"doCheckDateExample\" module=\"do-check-module\">\n *   <file name=\"app.js\">\n *     angular.module('do-check-module', [])\n *       .component('app', {\n *         template:\n *           'Month: <input ng-model=\"$ctrl.month\" ng-change=\"$ctrl.updateDate()\">' +\n *           'Date: {{ $ctrl.date }}' +\n *           '<test date=\"$ctrl.date\"></test>',\n *         controller: function() {\n *           this.date = new Date();\n *           this.month = this.date.getMonth();\n *           this.updateDate = function() {\n *             this.date.setMonth(this.month);\n *           };\n *         }\n *       })\n *       .component('test', {\n *         bindings: { date: '<' },\n *         template:\n *           '<pre>{{ $ctrl.log | json }}</pre>',\n *         controller: function() {\n *           var previousValue;\n *           this.log = [];\n *           this.$doCheck = function() {\n *             var currentValue = this.date && this.date.valueOf();\n *             if (previousValue !== currentValue) {\n *               this.log.push('doCheck: date mutated: ' + this.date);\n *               previousValue = currentValue;\n *             }\n *           };\n *         }\n *       });\n *   </file>\n *   <file name=\"index.html\">\n *     <app></app>\n *   </file>\n * </example>\n *\n * This example show how you might use `$doCheck` to trigger changes in your component's inputs even if the\n * actual identity of the component doesn't change. (Be aware that cloning and deep equality checks on large\n * arrays or objects can have a negative impact on your application performance)\n *\n * <example name=\"doCheckArrayExample\" module=\"do-check-module\">\n *   <file name=\"index.html\">\n *     <div ng-init=\"items = []\">\n *       <button ng-click=\"items.push(items.length)\">Add Item</button>\n *       <button ng-click=\"items = []\">Reset Items</button>\n *       <pre>{{ items }}</pre>\n *       <test items=\"items\"></test>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *      angular.module('do-check-module', [])\n *        .component('test', {\n *          bindings: { items: '<' },\n *          template:\n *            '<pre>{{ $ctrl.log | json }}</pre>',\n *          controller: function() {\n *            this.log = [];\n *\n *            this.$doCheck = function() {\n *              if (this.items_ref !== this.items) {\n *                this.log.push('doCheck: items changed');\n *                this.items_ref = this.items;\n *              }\n *              if (!angular.equals(this.items_clone, this.items)) {\n *                this.log.push('doCheck: items mutated');\n *                this.items_clone = angular.copy(this.items);\n *              }\n *            };\n *          }\n *        });\n *   </file>\n * </example>\n *\n *\n * ### Directive Definition Object\n *\n * The directive definition object provides instructions to the {@link ng.$compile\n * compiler}. The attributes are:\n *\n * #### `multiElement`\n * When this property is set to true (default is `false`), the HTML compiler will collect DOM nodes between\n * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them\n * together as the directive elements. It is recommended that this feature be used on directives\n * which are not strictly behavioral (such as {@link ngClick}), and which\n * do not manipulate or replace child nodes (such as {@link ngInclude}).\n *\n * #### `priority`\n * When there are multiple directives defined on a single DOM element, sometimes it\n * is necessary to specify the order in which the directives are applied. The `priority` is used\n * to sort the directives before their `compile` functions get called. Priority is defined as a\n * number. Directives with greater numerical `priority` are compiled first. Pre-link functions\n * are also run in priority order, but post-link functions are run in reverse order. The order\n * of directives with the same priority is undefined. The default priority is `0`.\n *\n * #### `terminal`\n * If set to true then the current `priority` will be the last set of directives\n * which will execute (any directives at the current priority will still execute\n * as the order of execution on same `priority` is undefined). Note that expressions\n * and other directives used in the directive's template will also be excluded from execution.\n *\n * #### `scope`\n * The scope property can be `false`, `true`, or an object:\n *\n * * **`false` (default):** No scope will be created for the directive. The directive will use its\n * parent's scope.\n *\n * * **`true`:** A new child scope that prototypically inherits from its parent will be created for\n * the directive's element. If multiple directives on the same element request a new scope,\n * only one new scope is created.\n *\n * * **`{...}` (an object hash):** A new \"isolate\" scope is created for the directive's element. The\n * 'isolate' scope differs from normal scope in that it does not prototypically inherit from its parent\n * scope. This is useful when creating reusable components, which should not accidentally read or modify\n * data in the parent scope.\n *\n * The 'isolate' scope object hash defines a set of local scope properties derived from attributes on the\n * directive's element. These local properties are useful for aliasing values for templates. The keys in\n * the object hash map to the name of the property on the isolate scope; the values define how the property\n * is bound to the parent scope, via matching attributes on the directive's element:\n *\n * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is\n *   always a string since DOM attributes are strings. If no `attr` name is specified then the\n *   attribute name is assumed to be the same as the local name. Given `<my-component\n *   my-attr=\"hello {{name}}\">` and the isolate scope definition `scope: { localName:'@myAttr' }`,\n *   the directive's scope property `localName` will reflect the interpolated value of `hello\n *   {{name}}`. As the `name` attribute changes so will the `localName` property on the directive's\n *   scope. The `name` is read from the parent scope (not the directive's scope).\n *\n * * `=` or `=attr` - set up a bidirectional binding between a local scope property and an expression\n *   passed via the attribute `attr`. The expression is evaluated in the context of the parent scope.\n *   If no `attr` name is specified then the attribute name is assumed to be the same as the local\n *   name. Given `<my-component my-attr=\"parentModel\">` and the isolate scope definition `scope: {\n *   localModel: '=myAttr' }`, the property `localModel` on the directive's scope will reflect the\n *   value of `parentModel` on the parent scope. Changes to `parentModel` will be reflected in\n *   `localModel` and vice versa. Optional attributes should be marked as such with a question mark:\n *   `=?` or `=?attr`. If the binding expression is non-assignable, or if the attribute isn't\n *   optional and doesn't exist, an exception ({@link error/$compile/nonassign `$compile:nonassign`})\n *   will be thrown upon discovering changes to the local value, since it will be impossible to sync\n *   them back to the parent scope. By default, the {@link ng.$rootScope.Scope#$watch `$watch`}\n *   method is used for tracking changes, and the equality check is based on object identity.\n *   However, if an object literal or an array literal is passed as the binding expression, the\n *   equality check is done by value (using the {@link angular.equals} function). It's also possible\n *   to watch the evaluated value shallowly with {@link ng.$rootScope.Scope#$watchCollection\n *   `$watchCollection`}: use `=*` or `=*attr` (`=*?` or `=*?attr` if the attribute is optional).\n *\n  * * `<` or `<attr` - set up a one-way (one-directional) binding between a local scope property and an\n *   expression passed via the attribute `attr`. The expression is evaluated in the context of the\n *   parent scope. If no `attr` name is specified then the attribute name is assumed to be the same as the\n *   local name. You can also make the binding optional by adding `?`: `<?` or `<?attr`.\n *\n *   For example, given `<my-component my-attr=\"parentModel\">` and directive definition of\n *   `scope: { localModel:'<myAttr' }`, then the isolated scope property `localModel` will reflect the\n *   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected\n *   in `localModel`, but changes in `localModel` will not reflect in `parentModel`. There are however\n *   two caveats:\n *     1. one-way binding does not copy the value from the parent to the isolate scope, it simply\n *     sets the same value. That means if your bound value is an object, changes to its properties\n *     in the isolated scope will be reflected in the parent scope (because both reference the same object).\n *     2. one-way binding watches changes to the **identity** of the parent value. That means the\n *     {@link ng.$rootScope.Scope#$watch `$watch`} on the parent value only fires if the reference\n *     to the value has changed. In most cases, this should not be of concern, but can be important\n *     to know if you one-way bind to an object, and then replace that object in the isolated scope.\n *     If you now change a property of the object in your parent scope, the change will not be\n *     propagated to the isolated scope, because the identity of the object on the parent scope\n *     has not changed. Instead you must assign a new object.\n *\n *   One-way binding is useful if you do not plan to propagate changes to your isolated scope bindings\n *   back to the parent. However, it does not make this completely impossible.\n *\n * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope. If\n *   no `attr` name is specified then the attribute name is assumed to be the same as the local name.\n *   Given `<my-component my-attr=\"count = count + value\">` and the isolate scope definition `scope: {\n *   localFn:'&myAttr' }`, the isolate scope property `localFn` will point to a function wrapper for\n *   the `count = count + value` expression. Often it's desirable to pass data from the isolated scope\n *   via an expression to the parent scope. This can be done by passing a map of local variable names\n *   and values into the expression wrapper fn. For example, if the expression is `increment(amount)`\n *   then we can specify the amount value by calling the `localFn` as `localFn({amount: 22})`.\n *\n * In general it's possible to apply more than one directive to one element, but there might be limitations\n * depending on the type of scope required by the directives. The following points will help explain these limitations.\n * For simplicity only two directives are taken into account, but it is also applicable for several directives:\n *\n * * **no scope** + **no scope** => Two directives which don't require their own scope will use their parent's scope\n * * **child scope** + **no scope** =>  Both directives will share one single child scope\n * * **child scope** + **child scope** =>  Both directives will share one single child scope\n * * **isolated scope** + **no scope** =>  The isolated directive will use it's own created isolated scope. The other directive will use\n * its parent's scope\n * * **isolated scope** + **child scope** =>  **Won't work!** Only one scope can be related to one element. Therefore these directives cannot\n * be applied to the same element.\n * * **isolated scope** + **isolated scope**  =>  **Won't work!** Only one scope can be related to one element. Therefore these directives\n * cannot be applied to the same element.\n *\n *\n * #### `bindToController`\n * This property is used to bind scope properties directly to the controller. It can be either\n * `true` or an object hash with the same format as the `scope` property.\n *\n * When an isolate scope is used for a directive (see above), `bindToController: true` will\n * allow a component to have its properties bound to the controller, rather than to scope.\n *\n * After the controller is instantiated, the initial values of the isolate scope bindings will be bound to the controller\n * properties. You can access these bindings once they have been initialized by providing a controller method called\n * `$onInit`, which is called after all the controllers on an element have been constructed and had their bindings\n * initialized.\n *\n * <div class=\"alert alert-warning\">\n * **Deprecation warning:** although bindings for non-ES6 class controllers are currently\n * bound to `this` before the controller constructor is called, this use is now deprecated. Please place initialization\n * code that relies upon bindings inside a `$onInit` method on the controller, instead.\n * </div>\n *\n * It is also possible to set `bindToController` to an object hash with the same format as the `scope` property.\n * This will set up the scope bindings to the controller directly. Note that `scope` can still be used\n * to define which kind of scope is created. By default, no scope is created. Use `scope: {}` to create an isolate\n * scope (useful for component directives).\n *\n * If both `bindToController` and `scope` are defined and have object hashes, `bindToController` overrides `scope`.\n *\n *\n * #### `controller`\n * Controller constructor function. The controller is instantiated before the\n * pre-linking phase and can be accessed by other directives (see\n * `require` attribute). This allows the directives to communicate with each other and augment\n * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:\n *\n * * `$scope` - Current scope associated with the element\n * * `$element` - Current element\n * * `$attrs` - Current attributes object for the element\n * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:\n *   `function([scope], cloneLinkingFn, futureParentElement, slotName)`:\n *    * `scope`: (optional) override the scope.\n *    * `cloneLinkingFn`: (optional) argument to create clones of the original transcluded content.\n *    * `futureParentElement` (optional):\n *        * defines the parent to which the `cloneLinkingFn` will add the cloned elements.\n *        * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.\n *        * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)\n *          and when the `cloneLinkingFn` is passed,\n *          as those elements need to created and cloned in a special way when they are defined outside their\n *          usual containers (e.g. like `<svg>`).\n *        * See also the `directive.templateNamespace` property.\n *    * `slotName`: (optional) the name of the slot to transclude. If falsy (e.g. `null`, `undefined` or `''`)\n *      then the default transclusion is provided.\n *    The `$transclude` function also has a method on it, `$transclude.isSlotFilled(slotName)`, which returns\n *    `true` if the specified slot contains content (i.e. one or more DOM nodes).\n *\n * #### `require`\n * Require another directive and inject its controller as the fourth argument to the linking function. The\n * `require` property can be a string, an array or an object:\n * * a **string** containing the name of the directive to pass to the linking function\n * * an **array** containing the names of directives to pass to the linking function. The argument passed to the\n * linking function will be an array of controllers in the same order as the names in the `require` property\n * * an **object** whose property values are the names of the directives to pass to the linking function. The argument\n * passed to the linking function will also be an object with matching keys, whose values will hold the corresponding\n * controllers.\n *\n * If the `require` property is an object and `bindToController` is truthy, then the required controllers are\n * bound to the controller using the keys of the `require` property. This binding occurs after all the controllers\n * have been constructed but before `$onInit` is called.\n * If the name of the required controller is the same as the local name (the key), the name can be\n * omitted. For example, `{parentDir: '^^'}` is equivalent to `{parentDir: '^^parentDir'}`.\n * See the {@link $compileProvider#component} helper for an example of how this can be used.\n * If no such required directive(s) can be found, or if the directive does not have a controller, then an error is\n * raised (unless no link function is specified and the required controllers are not being bound to the directive\n * controller, in which case error checking is skipped). The name can be prefixed with:\n *\n * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.\n * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.\n * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.\n * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.\n * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass\n *   `null` to the `link` fn if not found.\n * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass\n *   `null` to the `link` fn if not found.\n *\n *\n * #### `controllerAs`\n * Identifier name for a reference to the controller in the directive's scope.\n * This allows the controller to be referenced from the directive template. This is especially\n * useful when a directive is used as component, i.e. with an `isolate` scope. It's also possible\n * to use it in a directive without an `isolate` / `new` scope, but you need to be aware that the\n * `controllerAs` reference might overwrite a property that already exists on the parent scope.\n *\n *\n * #### `restrict`\n * String of subset of `EACM` which restricts the directive to a specific directive\n * declaration style. If omitted, the defaults (elements and attributes) are used.\n *\n * * `E` - Element name (default): `<my-directive></my-directive>`\n * * `A` - Attribute (default): `<div my-directive=\"exp\"></div>`\n * * `C` - Class: `<div class=\"my-directive: exp;\"></div>`\n * * `M` - Comment: `<!-- directive: my-directive exp -->`\n *\n *\n * #### `templateNamespace`\n * String representing the document type used by the markup in the template.\n * AngularJS needs this information as those elements need to be created and cloned\n * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.\n *\n * * `html` - All root nodes in the template are HTML. Root nodes may also be\n *   top-level elements such as `<svg>` or `<math>`.\n * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).\n * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).\n *\n * If no `templateNamespace` is specified, then the namespace is considered to be `html`.\n *\n * #### `template`\n * HTML markup that may:\n * * Replace the contents of the directive's element (default).\n * * Replace the directive's element itself (if `replace` is true - DEPRECATED).\n * * Wrap the contents of the directive's element (if `transclude` is true).\n *\n * Value may be:\n *\n * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.\n * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`\n *   function api below) and returns a string value.\n *\n *\n * #### `templateUrl`\n * This is similar to `template` but the template is loaded from the specified URL, asynchronously.\n *\n * Because template loading is asynchronous the compiler will suspend compilation of directives on that element\n * for later when the template has been resolved.  In the meantime it will continue to compile and link\n * sibling and parent elements as though this element had not contained any directives.\n *\n * The compiler does not suspend the entire compilation to wait for templates to be loaded because this\n * would result in the whole app \"stalling\" until all templates are loaded asynchronously - even in the\n * case when only one deeply nested directive has `templateUrl`.\n *\n * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}\n *\n * You can specify `templateUrl` as a string representing the URL or as a function which takes two\n * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns\n * a string value representing the url.  In either case, the template URL is passed through {@link\n * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.\n *\n *\n * #### `replace` ([*DEPRECATED*!], will be removed in next major release - i.e. v2.0)\n * specify what the template should replace. Defaults to `false`.\n *\n * * `true` - the template will replace the directive's element.\n * * `false` - the template will replace the contents of the directive's element.\n *\n * The replacement process migrates all of the attributes / classes from the old element to the new\n * one. See the {@link guide/directive#template-expanding-directive\n * Directives Guide} for an example.\n *\n * There are very few scenarios where element replacement is required for the application function,\n * the main one being reusable custom components that are used within SVG contexts\n * (because SVG doesn't work with custom elements in the DOM tree).\n *\n * #### `transclude`\n * Extract the contents of the element where the directive appears and make it available to the directive.\n * The contents are compiled and provided to the directive as a **transclusion function**. See the\n * {@link $compile#transclusion Transclusion} section below.\n *\n *\n * #### `compile`\n *\n * ```js\n *   function compile(tElement, tAttrs, transclude) { ... }\n * ```\n *\n * The compile function deals with transforming the template DOM. Since most directives do not do\n * template transformation, it is not used often. The compile function takes the following arguments:\n *\n *   * `tElement` - template element - The element where the directive has been declared. It is\n *     safe to do template transformation on the element and child elements only.\n *\n *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared\n *     between all directive compile functions.\n *\n *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`\n *\n * <div class=\"alert alert-warning\">\n * **Note:** The template instance and the link instance may be different objects if the template has\n * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that\n * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration\n * should be done in a linking function rather than in a compile function.\n * </div>\n\n * <div class=\"alert alert-warning\">\n * **Note:** The compile function cannot handle directives that recursively use themselves in their\n * own templates or compile functions. Compiling these directives results in an infinite loop and\n * stack overflow errors.\n *\n * This can be avoided by manually using $compile in the postLink function to imperatively compile\n * a directive's template instead of relying on automatic template compilation via `template` or\n * `templateUrl` declaration or manual compilation inside the compile function.\n * </div>\n *\n * <div class=\"alert alert-danger\">\n * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it\n *   e.g. does not know about the right outer scope. Please use the transclude function that is passed\n *   to the link function instead.\n * </div>\n\n * A compile function can have a return value which can be either a function or an object.\n *\n * * returning a (post-link) function - is equivalent to registering the linking function via the\n *   `link` property of the config object when the compile function is empty.\n *\n * * returning an object with function(s) registered via `pre` and `post` properties - allows you to\n *   control when a linking function should be called during the linking phase. See info about\n *   pre-linking and post-linking functions below.\n *\n *\n * #### `link`\n * This property is used only if the `compile` property is not defined.\n *\n * ```js\n *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }\n * ```\n *\n * The link function is responsible for registering DOM listeners as well as updating the DOM. It is\n * executed after the template has been cloned. This is where most of the directive logic will be\n * put.\n *\n *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the\n *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.\n *\n *   * `iElement` - instance element - The element where the directive is to be used. It is safe to\n *     manipulate the children of the element only in `postLink` function since the children have\n *     already been linked.\n *\n *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared\n *     between all directive linking functions.\n *\n *   * `controller` - the directive's required controller instance(s) - Instances are shared\n *     among all directives, which allows the directives to use the controllers as a communication\n *     channel. The exact value depends on the directive's `require` property:\n *       * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one\n *       * `string`: the controller instance\n *       * `array`: array of controller instances\n *\n *     If a required controller cannot be found, and it is optional, the instance is `null`,\n *     otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown.\n *\n *     Note that you can also require the directive's own controller - it will be made available like\n *     any other controller.\n *\n *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.\n *     This is the same as the `$transclude` parameter of directive controllers,\n *     see {@link ng.$compile#-controller- the controller section for details}.\n *     `function([scope], cloneLinkingFn, futureParentElement)`.\n *\n * #### Pre-linking function\n *\n * Executed before the child elements are linked. Not safe to do DOM transformation since the\n * compiler linking function will fail to locate the correct elements for linking.\n *\n * #### Post-linking function\n *\n * Executed after the child elements are linked.\n *\n * Note that child elements that contain `templateUrl` directives will not have been compiled\n * and linked since they are waiting for their template to load asynchronously and their own\n * compilation and linking has been suspended until that occurs.\n *\n * It is safe to do DOM transformation in the post-linking function on elements that are not waiting\n * for their async templates to be resolved.\n *\n *\n * ### Transclusion\n *\n * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and\n * copying them to another part of the DOM, while maintaining their connection to the original AngularJS\n * scope from where they were taken.\n *\n * Transclusion is used (often with {@link ngTransclude}) to insert the\n * original contents of a directive's element into a specified place in the template of the directive.\n * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded\n * content has access to the properties on the scope from which it was taken, even if the directive\n * has isolated scope.\n * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.\n *\n * This makes it possible for the widget to have private state for its template, while the transcluded\n * content has access to its originating scope.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** When testing an element transclude directive you must not place the directive at the root of the\n * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives\n * Testing Transclusion Directives}.\n * </div>\n *\n * There are three kinds of transclusion depending upon whether you want to transclude just the contents of the\n * directive's element, the entire element or multiple parts of the element contents:\n *\n * * `true` - transclude the content (i.e. the child nodes) of the directive's element.\n * * `'element'` - transclude the whole of the directive's element including any directives on this\n *   element that defined at a lower priority than this directive. When used, the `template`\n *   property is ignored.\n * * **`{...}` (an object hash):** - map elements of the content onto transclusion \"slots\" in the template.\n *\n * **Mult-slot transclusion** is declared by providing an object for the `transclude` property.\n *\n * This object is a map where the keys are the name of the slot to fill and the value is an element selector\n * used to match the HTML to the slot. The element selector should be in normalized form (e.g. `myElement`)\n * and will match the standard element variants (e.g. `my-element`, `my:element`, `data-my-element`, etc).\n *\n * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n *\n * If the element selector is prefixed with a `?` then that slot is optional.\n *\n * For example, the transclude object `{ slotA: '?myCustomElement' }` maps `<my-custom-element>` elements to\n * the `slotA` slot, which can be accessed via the `$transclude` function or via the {@link ngTransclude} directive.\n *\n * Slots that are not marked as optional (`?`) will trigger a compile time error if there are no matching elements\n * in the transclude content. If you wish to know if an optional slot was filled with content, then you can call\n * `$transclude.isSlotFilled(slotName)` on the transclude function passed to the directive's link function and\n * injectable into the directive's controller.\n *\n *\n * #### Transclusion Functions\n *\n * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion\n * function** to the directive's `link` function and `controller`. This transclusion function is a special\n * **linking function** that will return the compiled contents linked to a new transclusion scope.\n *\n * <div class=\"alert alert-info\">\n * If you are just using {@link ngTransclude} then you don't need to worry about this function, since\n * ngTransclude will deal with it for us.\n * </div>\n *\n * If you want to manually control the insertion and removal of the transcluded content in your directive\n * then you must use this transclude function. When you call a transclude function it returns a a jqLite/JQuery\n * object that contains the compiled DOM, which is linked to the correct transclusion scope.\n *\n * When you call a transclusion function you can pass in a **clone attach function**. This function accepts\n * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded\n * content and the `scope` is the newly created transclusion scope, which the clone will be linked to.\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a transclude function\n * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.\n * </div>\n *\n * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone\n * attach function**:\n *\n * ```js\n * var transcludedContent, transclusionScope;\n *\n * $transclude(function(clone, scope) {\n *   element.append(clone);\n *   transcludedContent = clone;\n *   transclusionScope = scope;\n * });\n * ```\n *\n * Later, if you want to remove the transcluded content from your DOM then you should also destroy the\n * associated transclusion scope:\n *\n * ```js\n * transcludedContent.remove();\n * transclusionScope.$destroy();\n * ```\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: if you intend to add and remove transcluded content manually in your directive\n * (by calling the transclude function to get the DOM and calling `element.remove()` to remove it),\n * then you are also responsible for calling `$destroy` on the transclusion scope.\n * </div>\n *\n * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}\n * automatically destroy their transcluded clones as necessary so you do not need to worry about this if\n * you are simply using {@link ngTransclude} to inject the transclusion into your directive.\n *\n *\n * #### Transclusion Scopes\n *\n * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion\n * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed\n * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it\n * was taken.\n *\n * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look\n * like this:\n *\n * ```html\n * <div ng-app>\n *   <div isolate>\n *     <div transclusion>\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * The `$parent` scope hierarchy will look like this:\n *\n   ```\n   - $rootScope\n     - isolate\n       - transclusion\n   ```\n *\n * but the scopes will inherit prototypically from different scopes to their `$parent`.\n *\n   ```\n   - $rootScope\n     - transclusion\n   - isolate\n   ```\n *\n *\n * ### Attributes\n *\n * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the\n * `link()` or `compile()` functions. It has a variety of uses.\n *\n * * *Accessing normalized attribute names:* Directives like 'ngBind' can be expressed in many ways:\n *   'ng:bind', `data-ng-bind`, or 'x-ng-bind'. The attributes object allows for normalized access\n *   to the attributes.\n *\n * * *Directive inter-communication:* All directives share the same instance of the attributes\n *   object which allows the directives to use the attributes object as inter directive\n *   communication.\n *\n * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object\n *   allowing other directives to read the interpolated value.\n *\n * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes\n *   that contain interpolation (e.g. `src=\"{{bar}}\"`). Not only is this very efficient but it's also\n *   the only way to easily get the actual value because during the linking phase the interpolation\n *   hasn't been evaluated yet and so the value is at this time set to `undefined`.\n *\n * ```js\n * function linkingFn(scope, elm, attrs, ctrl) {\n *   // get the attribute value\n *   console.log(attrs.ngModel);\n *\n *   // change the attribute\n *   attrs.$set('ngModel', 'new value');\n *\n *   // observe changes to interpolated attribute\n *   attrs.$observe('ngModel', function(value) {\n *     console.log('ngModel has changed value to ' + value);\n *   });\n * }\n * ```\n *\n * ## Example\n *\n * <div class=\"alert alert-warning\">\n * **Note**: Typically directives are registered with `module.directive`. The example below is\n * to illustrate how `$compile` works.\n * </div>\n *\n <example module=\"compileExample\" name=\"compile\">\n   <file name=\"index.html\">\n    <script>\n      angular.module('compileExample', [], function($compileProvider) {\n        // configure new 'compile' directive by passing a directive\n        // factory function. The factory function injects the '$compile'\n        $compileProvider.directive('compile', function($compile) {\n          // directive factory creates a link function\n          return function(scope, element, attrs) {\n            scope.$watch(\n              function(scope) {\n                 // watch the 'compile' expression for changes\n                return scope.$eval(attrs.compile);\n              },\n              function(value) {\n                // when the 'compile' expression changes\n                // assign it into the current DOM\n                element.html(value);\n\n                // compile the new DOM and link it to the current\n                // scope.\n                // NOTE: we only compile .childNodes so that\n                // we don't get into infinite loop compiling ourselves\n                $compile(element.contents())(scope);\n              }\n            );\n          };\n        });\n      })\n      .controller('GreeterController', ['$scope', function($scope) {\n        $scope.name = 'Angular';\n        $scope.html = 'Hello {{name}}';\n      }]);\n    </script>\n    <div ng-controller=\"GreeterController\">\n      <input ng-model=\"name\"> <br/>\n      <textarea ng-model=\"html\"></textarea> <br/>\n      <div compile=\"html\"></div>\n    </div>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n     it('should auto compile', function() {\n       var textarea = $('textarea');\n       var output = $('div[compile]');\n       // The initial state reads 'Hello Angular'.\n       expect(output.getText()).toBe('Hello Angular');\n       textarea.clear();\n       textarea.sendKeys('{{name}}!');\n       expect(output.getText()).toBe('Angular!');\n     });\n   </file>\n </example>\n\n *\n *\n * @param {string|DOMElement} element Element or HTML string to compile into a template function.\n * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED.\n *\n * <div class=\"alert alert-danger\">\n * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it\n *   e.g. will not use the right outer scope. Please pass the transclude function as a\n *   `parentBoundTranscludeFn` to the link function instead.\n * </div>\n *\n * @param {number} maxPriority only apply directives lower than given priority (Only effects the\n *                 root element(s), not their children)\n * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template\n * (a DOM element/tree) to a scope. Where:\n *\n *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.\n *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the\n *  `template` and call the `cloneAttachFn` function allowing the caller to attach the\n *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is\n *  called as: <br/> `cloneAttachFn(clonedElement, scope)` where:\n *\n *      * `clonedElement` - is a clone of the original `element` passed into the compiler.\n *      * `scope` - is the current scope with which the linking function is working with.\n *\n *  * `options` - An optional object hash with linking options. If `options` is provided, then the following\n *  keys may be used to control linking behavior:\n *\n *      * `parentBoundTranscludeFn` - the transclude function made available to\n *        directives; if given, it will be passed through to the link functions of\n *        directives found in `element` during compilation.\n *      * `transcludeControllers` - an object hash with keys that map controller names\n *        to a hash with the key `instance`, which maps to the controller instance;\n *        if given, it will make the controllers available to directives on the compileNode:\n *        ```\n *        {\n *          parent: {\n *            instance: parentControllerInstance\n *          }\n *        }\n *        ```\n *      * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add\n *        the cloned elements; only needed for transcludes that are allowed to contain non html\n *        elements (e.g. SVG elements). See also the directive.controller property.\n *\n * Calling the linking function returns the element of the template. It is either the original\n * element passed in, or the clone of the element if the `cloneAttachFn` is provided.\n *\n * After linking the view is not updated until after a call to $digest which typically is done by\n * Angular automatically.\n *\n * If you need access to the bound view, there are two ways to do it:\n *\n * - If you are not asking the linking function to clone the template, create the DOM element(s)\n *   before you send them to the compiler and keep this reference around.\n *   ```js\n *     var element = $compile('<p>{{total}}</p>')(scope);\n *   ```\n *\n * - if on the other hand, you need the element to be cloned, the view reference from the original\n *   example would not point to the clone, but rather to the original template that was cloned. In\n *   this case, you can access the clone via the cloneAttachFn:\n *   ```js\n *     var templateElement = angular.element('<p>{{total}}</p>'),\n *         scope = ....;\n *\n *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {\n *       //attach the clone to DOM document at the right place\n *     });\n *\n *     //now we have reference to the cloned DOM via `clonedElement`\n *   ```\n *\n *\n * For information on how the compiler works, see the\n * {@link guide/compiler Angular HTML Compiler} section of the Developer Guide.\n *\n * @knownIssue\n *\n * ### Double Compilation\n *\n   Double compilation occurs when an already compiled part of the DOM gets\n   compiled again. This is an undesired effect and can lead to misbehaving directives, performance issues,\n   and memory leaks. Refer to the Compiler Guide {@link guide/compiler#double-compilation-and-how-to-avoid-it\n   section on double compilation} for an in-depth explanation and ways to avoid it.\n *\n */\n\nvar $compileMinErr = minErr('$compile');\n\nfunction UNINITIALIZED_VALUE() {}\nvar _UNINITIALIZED_VALUE = new UNINITIALIZED_VALUE();\n\n/**\n * @ngdoc provider\n * @name $compileProvider\n *\n * @description\n */\n$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];\n/** @this */\nfunction $CompileProvider($provide, $$sanitizeUriProvider) {\n  var hasDirectives = {},\n      Suffix = 'Directive',\n      COMMENT_DIRECTIVE_REGEXP = /^\\s*directive:\\s*([\\w-]+)\\s+(.*)$/,\n      CLASS_DIRECTIVE_REGEXP = /(([\\w-]+)(?::([^;]+))?;?)/,\n      ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),\n      REQUIRE_PREFIX_REGEXP = /^(?:(\\^\\^?)?(\\?)?(\\^\\^?)?)?/;\n\n  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes\n  // The assumption is that future DOM event attribute names will begin with\n  // 'on' and be composed of only English letters.\n  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;\n  var bindingCache = createMap();\n\n  function parseIsolateBindings(scope, directiveName, isController) {\n    var LOCAL_REGEXP = /^\\s*([@&<]|=(\\*?))(\\??)\\s*([\\w$]*)\\s*$/;\n\n    var bindings = createMap();\n\n    forEach(scope, function(definition, scopeName) {\n      if (definition in bindingCache) {\n        bindings[scopeName] = bindingCache[definition];\n        return;\n      }\n      var match = definition.match(LOCAL_REGEXP);\n\n      if (!match) {\n        throw $compileMinErr('iscp',\n            'Invalid {3} for directive \\'{0}\\'.' +\n            ' Definition: {... {1}: \\'{2}\\' ...}',\n            directiveName, scopeName, definition,\n            (isController ? 'controller bindings definition' :\n            'isolate scope definition'));\n      }\n\n      bindings[scopeName] = {\n        mode: match[1][0],\n        collection: match[2] === '*',\n        optional: match[3] === '?',\n        attrName: match[4] || scopeName\n      };\n      if (match[4]) {\n        bindingCache[definition] = bindings[scopeName];\n      }\n    });\n\n    return bindings;\n  }\n\n  function parseDirectiveBindings(directive, directiveName) {\n    var bindings = {\n      isolateScope: null,\n      bindToController: null\n    };\n    if (isObject(directive.scope)) {\n      if (directive.bindToController === true) {\n        bindings.bindToController = parseIsolateBindings(directive.scope,\n                                                         directiveName, true);\n        bindings.isolateScope = {};\n      } else {\n        bindings.isolateScope = parseIsolateBindings(directive.scope,\n                                                     directiveName, false);\n      }\n    }\n    if (isObject(directive.bindToController)) {\n      bindings.bindToController =\n          parseIsolateBindings(directive.bindToController, directiveName, true);\n    }\n    if (bindings.bindToController && !directive.controller) {\n      // There is no controller\n      throw $compileMinErr('noctrl',\n            'Cannot bind to controller without directive \\'{0}\\'s controller.',\n            directiveName);\n    }\n    return bindings;\n  }\n\n  function assertValidDirectiveName(name) {\n    var letter = name.charAt(0);\n    if (!letter || letter !== lowercase(letter)) {\n      throw $compileMinErr('baddir', 'Directive/Component name \\'{0}\\' is invalid. The first character must be a lowercase letter', name);\n    }\n    if (name !== name.trim()) {\n      throw $compileMinErr('baddir',\n            'Directive/Component name \\'{0}\\' is invalid. The name should not contain leading or trailing whitespaces',\n            name);\n    }\n  }\n\n  function getDirectiveRequire(directive) {\n    var require = directive.require || (directive.controller && directive.name);\n\n    if (!isArray(require) && isObject(require)) {\n      forEach(require, function(value, key) {\n        var match = value.match(REQUIRE_PREFIX_REGEXP);\n        var name = value.substring(match[0].length);\n        if (!name) require[key] = match[0] + key;\n      });\n    }\n\n    return require;\n  }\n\n  function getDirectiveRestrict(restrict, name) {\n    if (restrict && !(isString(restrict) && /[EACM]/.test(restrict))) {\n      throw $compileMinErr('badrestrict',\n          'Restrict property \\'{0}\\' of directive \\'{1}\\' is invalid',\n          restrict,\n          name);\n    }\n\n    return restrict || 'EA';\n  }\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#directive\n   * @kind function\n   *\n   * @description\n   * Register a new directive with the compiler.\n   *\n   * @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which\n   *    will match as <code>ng-bind</code>), or an object map of directives where the keys are the\n   *    names and the values are the factories.\n   * @param {Function|Array} directiveFactory An injectable directive factory function. See the\n   *    {@link guide/directive directive guide} and the {@link $compile compile API} for more info.\n   * @returns {ng.$compileProvider} Self for chaining.\n   */\n  this.directive = function registerDirective(name, directiveFactory) {\n    assertArg(name, 'name');\n    assertNotHasOwnProperty(name, 'directive');\n    if (isString(name)) {\n      assertValidDirectiveName(name);\n      assertArg(directiveFactory, 'directiveFactory');\n      if (!hasDirectives.hasOwnProperty(name)) {\n        hasDirectives[name] = [];\n        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',\n          function($injector, $exceptionHandler) {\n            var directives = [];\n            forEach(hasDirectives[name], function(directiveFactory, index) {\n              try {\n                var directive = $injector.invoke(directiveFactory);\n                if (isFunction(directive)) {\n                  directive = { compile: valueFn(directive) };\n                } else if (!directive.compile && directive.link) {\n                  directive.compile = valueFn(directive.link);\n                }\n                directive.priority = directive.priority || 0;\n                directive.index = index;\n                directive.name = directive.name || name;\n                directive.require = getDirectiveRequire(directive);\n                directive.restrict = getDirectiveRestrict(directive.restrict, name);\n                directive.$$moduleName = directiveFactory.$$moduleName;\n                directives.push(directive);\n              } catch (e) {\n                $exceptionHandler(e);\n              }\n            });\n            return directives;\n          }]);\n      }\n      hasDirectives[name].push(directiveFactory);\n    } else {\n      forEach(name, reverseParams(registerDirective));\n    }\n    return this;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#component\n   * @module ng\n   * @param {string} name Name of the component in camelCase (i.e. `myComp` which will match `<my-comp>`)\n   * @param {Object} options Component definition object (a simplified\n   *    {@link ng.$compile#directive-definition-object directive definition object}),\n   *    with the following properties (all optional):\n   *\n   *    - `controller` – `{(string|function()=}` – controller constructor function that should be\n   *      associated with newly created scope or the name of a {@link ng.$compile#-controller-\n   *      registered controller} if passed as a string. An empty `noop` function by default.\n   *    - `controllerAs` – `{string=}` – identifier name for to reference the controller in the component's scope.\n   *      If present, the controller will be published to scope under the `controllerAs` name.\n   *      If not present, this will default to be `$ctrl`.\n   *    - `template` – `{string=|function()=}` – html template as a string or a function that\n   *      returns an html template as a string which should be used as the contents of this component.\n   *      Empty string by default.\n   *\n   *      If `template` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `templateUrl` – `{string=|function()=}` – path or function that returns a path to an html\n   *      template that should be used  as the contents of this component.\n   *\n   *      If `templateUrl` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `bindings` – `{object=}` – defines bindings between DOM attributes and component properties.\n   *      Component properties are always bound to the component controller and not to the scope.\n   *      See {@link ng.$compile#-bindtocontroller- `bindToController`}.\n   *    - `transclude` – `{boolean=}` – whether {@link $compile#transclusion content transclusion} is enabled.\n   *      Disabled by default.\n   *    - `require` - `{Object<string, string>=}` - requires the controllers of other directives and binds them to\n   *      this component's controller. The object keys specify the property names under which the required\n   *      controllers (object values) will be bound. See {@link ng.$compile#-require- `require`}.\n   *    - `$...` – additional properties to attach to the directive factory function and the controller\n   *      constructor function. (This is used by the component router to annotate)\n   *\n   * @returns {ng.$compileProvider} the compile provider itself, for chaining of function calls.\n   * @description\n   * Register a **component definition** with the compiler. This is a shorthand for registering a special\n   * type of directive, which represents a self-contained UI component in your application. Such components\n   * are always isolated (i.e. `scope: {}`) and are always restricted to elements (i.e. `restrict: 'E'`).\n   *\n   * Component definitions are very simple and do not require as much configuration as defining general\n   * directives. Component definitions usually consist only of a template and a controller backing it.\n   *\n   * In order to make the definition easier, components enforce best practices like use of `controllerAs`,\n   * `bindToController`. They always have **isolate scope** and are restricted to elements.\n   *\n   * Here are a few examples of how you would usually define components:\n   *\n   * ```js\n   *   var myMod = angular.module(...);\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     controller: function() {\n   *       this.name = 'shahar';\n   *     }\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     templateUrl: 'views/my-comp.html',\n   *     controller: 'MyCtrl',\n   *     controllerAs: 'ctrl',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   * ```\n   * For more examples, and an in-depth guide, see the {@link guide/component component guide}.\n   *\n   * <br />\n   * See also {@link ng.$compileProvider#directive $compileProvider.directive()}.\n   */\n  this.component = function registerComponent(name, options) {\n    var controller = options.controller || function() {};\n\n    function factory($injector) {\n      function makeInjectable(fn) {\n        if (isFunction(fn) || isArray(fn)) {\n          return /** @this */ function(tElement, tAttrs) {\n            return $injector.invoke(fn, this, {$element: tElement, $attrs: tAttrs});\n          };\n        } else {\n          return fn;\n        }\n      }\n\n      var template = (!options.template && !options.templateUrl ? '' : options.template);\n      var ddo = {\n        controller: controller,\n        controllerAs: identifierForController(options.controller) || options.controllerAs || '$ctrl',\n        template: makeInjectable(template),\n        templateUrl: makeInjectable(options.templateUrl),\n        transclude: options.transclude,\n        scope: {},\n        bindToController: options.bindings || {},\n        restrict: 'E',\n        require: options.require\n      };\n\n      // Copy annotations (starting with $) over to the DDO\n      forEach(options, function(val, key) {\n        if (key.charAt(0) === '$') ddo[key] = val;\n      });\n\n      return ddo;\n    }\n\n    // TODO(pete) remove the following `forEach` before we release 1.6.0\n    // The component-router@0.2.0 looks for the annotations on the controller constructor\n    // Nothing in Angular looks for annotations on the factory function but we can't remove\n    // it from 1.5.x yet.\n\n    // Copy any annotation properties (starting with $) over to the factory and controller constructor functions\n    // These could be used by libraries such as the new component router\n    forEach(options, function(val, key) {\n      if (key.charAt(0) === '$') {\n        factory[key] = val;\n        // Don't try to copy over annotations to named controller\n        if (isFunction(controller)) controller[key] = val;\n      }\n    });\n\n    factory.$inject = ['$injector'];\n\n    return this.directive(name, factory);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at preventing XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.aHrefSanitizationWhitelist();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#debugInfoEnabled\n   *\n   * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the\n   * current debugInfoEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable various debug runtime information in the compiler such as adding\n   * binding information and a reference to the current scope on to DOM elements.\n   * If enabled, the compiler will add the following to DOM elements that have been bound to the scope\n   * * `ng-binding` CSS class\n   * * `$binding` data property containing an array of the binding expressions\n   *\n   * You may want to disable this in production for a significant performance boost. See\n   * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.\n   *\n   * The default value is true.\n   */\n  var debugInfoEnabled = true;\n  this.debugInfoEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      debugInfoEnabled = enabled;\n      return this;\n    }\n    return debugInfoEnabled;\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#preAssignBindingsEnabled\n   *\n   * @param {boolean=} enabled update the preAssignBindingsEnabled state if provided, otherwise just return the\n   * current preAssignBindingsEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable whether directive controllers are assigned bindings before\n   * calling the controller's constructor.\n   * If enabled (true), the compiler assigns the value of each of the bindings to the\n   * properties of the controller object before the constructor of this object is called.\n   *\n   * If disabled (false), the compiler calls the constructor first before assigning bindings.\n   *\n   * The default value is true in Angular 1.5.x but will switch to false in Angular 1.6.x.\n   */\n  var preAssignBindingsEnabled = true;\n  this.preAssignBindingsEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      preAssignBindingsEnabled = enabled;\n      return this;\n    }\n    return preAssignBindingsEnabled;\n  };\n\n\n  var TTL = 10;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#onChangesTtl\n   * @description\n   *\n   * Sets the number of times `$onChanges` hooks can trigger new changes before giving up and\n   * assuming that the model is unstable.\n   *\n   * The current default is 10 iterations.\n   *\n   * In complex applications it's possible that dependencies between `$onChanges` hooks and bindings will result\n   * in several iterations of calls to these hooks. However if an application needs more than the default 10\n   * iterations to stabilize then you should investigate what is causing the model to continuously change during\n   * the `$onChanges` hook execution.\n   *\n   * Increasing the TTL could have performance implications, so you should not change it without proper justification.\n   *\n   * @param {number} limit The number of `$onChanges` hook iterations.\n   * @returns {number|object} the current limit (or `this` if called as a setter for chaining)\n   */\n  this.onChangesTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n      return this;\n    }\n    return TTL;\n  };\n\n  var commentDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#commentDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on comments should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on comments for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check comments when looking for directives.\n   * This should however only be used if you are sure that no comment directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on comments\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.commentDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      commentDirectivesEnabledConfig = value;\n      return this;\n    }\n    return commentDirectivesEnabledConfig;\n  };\n\n\n  var cssClassDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#cssClassDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on element classes should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on element classes for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check element classes when looking for directives.\n   * This should however only be used if you are sure that no class directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on element classes\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.cssClassDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      cssClassDirectivesEnabledConfig = value;\n      return this;\n    }\n    return cssClassDirectivesEnabledConfig;\n  };\n\n  this.$get = [\n            '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',\n            '$controller', '$rootScope', '$sce', '$animate', '$$sanitizeUri',\n    function($injector,   $interpolate,   $exceptionHandler,   $templateRequest,   $parse,\n             $controller,   $rootScope,   $sce,   $animate,   $$sanitizeUri) {\n\n    var SIMPLE_ATTR_NAME = /^\\w/;\n    var specialAttrHolder = window.document.createElement('div');\n\n\n    var commentDirectivesEnabled = commentDirectivesEnabledConfig;\n    var cssClassDirectivesEnabled = cssClassDirectivesEnabledConfig;\n\n\n    var onChangesTtl = TTL;\n    // The onChanges hooks should all be run together in a single digest\n    // When changes occur, the call to trigger their hooks will be added to this queue\n    var onChangesQueue;\n\n    // This function is called in a $$postDigest to trigger all the onChanges hooks in a single digest\n    function flushOnChangesQueue() {\n      try {\n        if (!(--onChangesTtl)) {\n          // We have hit the TTL limit so reset everything\n          onChangesQueue = undefined;\n          throw $compileMinErr('infchng', '{0} $onChanges() iterations reached. Aborting!\\n', TTL);\n        }\n        // We must run this hook in an apply since the $$postDigest runs outside apply\n        $rootScope.$apply(function() {\n          var errors = [];\n          for (var i = 0, ii = onChangesQueue.length; i < ii; ++i) {\n            try {\n              onChangesQueue[i]();\n            } catch (e) {\n              errors.push(e);\n            }\n          }\n          // Reset the queue to trigger a new schedule next time there is a change\n          onChangesQueue = undefined;\n          if (errors.length) {\n            throw errors;\n          }\n        });\n      } finally {\n        onChangesTtl++;\n      }\n    }\n\n\n    function Attributes(element, attributesToCopy) {\n      if (attributesToCopy) {\n        var keys = Object.keys(attributesToCopy);\n        var i, l, key;\n\n        for (i = 0, l = keys.length; i < l; i++) {\n          key = keys[i];\n          this[key] = attributesToCopy[key];\n        }\n      } else {\n        this.$attr = {};\n      }\n\n      this.$$element = element;\n    }\n\n    Attributes.prototype = {\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$normalize\n       * @kind function\n       *\n       * @description\n       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or\n       * `data-`) to its normalized, camelCase form.\n       *\n       * Also there is special case for Moz prefix starting with upper case letter.\n       *\n       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n       *\n       * @param {string} name Name to normalize\n       */\n      $normalize: directiveNormalize,\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$addClass\n       * @kind function\n       *\n       * @description\n       * Adds the CSS class value specified by the classVal parameter to the element. If animations\n       * are enabled then an animation will be triggered for the class addition.\n       *\n       * @param {string} classVal The className value that will be added to the element\n       */\n      $addClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.addClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$removeClass\n       * @kind function\n       *\n       * @description\n       * Removes the CSS class value specified by the classVal parameter from the element. If\n       * animations are enabled then an animation will be triggered for the class removal.\n       *\n       * @param {string} classVal The className value that will be removed from the element\n       */\n      $removeClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.removeClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$updateClass\n       * @kind function\n       *\n       * @description\n       * Adds and removes the appropriate CSS class values to the element based on the difference\n       * between the new and old CSS class values (specified as newClasses and oldClasses).\n       *\n       * @param {string} newClasses The current CSS className value\n       * @param {string} oldClasses The former CSS className value\n       */\n      $updateClass: function(newClasses, oldClasses) {\n        var toAdd = tokenDifference(newClasses, oldClasses);\n        if (toAdd && toAdd.length) {\n          $animate.addClass(this.$$element, toAdd);\n        }\n\n        var toRemove = tokenDifference(oldClasses, newClasses);\n        if (toRemove && toRemove.length) {\n          $animate.removeClass(this.$$element, toRemove);\n        }\n      },\n\n      /**\n       * Set a normalized attribute on the element in a way such that all directives\n       * can share the attribute. This function properly handles boolean attributes.\n       * @param {string} key Normalized key. (ie ngAttribute)\n       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.\n       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.\n       *     Defaults to true.\n       * @param {string=} attrName Optional none normalized name. Defaults to key.\n       */\n      $set: function(key, value, writeAttr, attrName) {\n        // TODO: decide whether or not to throw an error if \"class\"\n        //is set through this function since it may cause $updateClass to\n        //become unstable.\n\n        var node = this.$$element[0],\n            booleanKey = getBooleanAttrName(node, key),\n            aliasedKey = getAliasedAttrName(key),\n            observer = key,\n            nodeName;\n\n        if (booleanKey) {\n          this.$$element.prop(key, value);\n          attrName = booleanKey;\n        } else if (aliasedKey) {\n          this[aliasedKey] = value;\n          observer = aliasedKey;\n        }\n\n        this[key] = value;\n\n        // translate normalized key to actual key\n        if (attrName) {\n          this.$attr[key] = attrName;\n        } else {\n          attrName = this.$attr[key];\n          if (!attrName) {\n            this.$attr[key] = attrName = snake_case(key, '-');\n          }\n        }\n\n        nodeName = nodeName_(this.$$element);\n\n        if ((nodeName === 'a' && (key === 'href' || key === 'xlinkHref')) ||\n            (nodeName === 'img' && key === 'src')) {\n          // sanitize a[href] and img[src] values\n          this[key] = value = $$sanitizeUri(value, key === 'src');\n        } else if (nodeName === 'img' && key === 'srcset' && isDefined(value)) {\n          // sanitize img[srcset] values\n          var result = '';\n\n          // first check if there are spaces because it's not the same pattern\n          var trimmedSrcset = trim(value);\n          //                (   999x   ,|   999w   ,|   ,|,   )\n          var srcPattern = /(\\s+\\d+x\\s*,|\\s+\\d+w\\s*,|\\s+,|,\\s+)/;\n          var pattern = /\\s/.test(trimmedSrcset) ? srcPattern : /(,)/;\n\n          // split srcset into tuple of uri and descriptor except for the last item\n          var rawUris = trimmedSrcset.split(pattern);\n\n          // for each tuples\n          var nbrUrisWith2parts = Math.floor(rawUris.length / 2);\n          for (var i = 0; i < nbrUrisWith2parts; i++) {\n            var innerIdx = i * 2;\n            // sanitize the uri\n            result += $$sanitizeUri(trim(rawUris[innerIdx]), true);\n            // add the descriptor\n            result += (' ' + trim(rawUris[innerIdx + 1]));\n          }\n\n          // split the last item into uri and descriptor\n          var lastTuple = trim(rawUris[i * 2]).split(/\\s/);\n\n          // sanitize the last uri\n          result += $$sanitizeUri(trim(lastTuple[0]), true);\n\n          // and add the last descriptor if any\n          if (lastTuple.length === 2) {\n            result += (' ' + trim(lastTuple[1]));\n          }\n          this[key] = value = result;\n        }\n\n        if (writeAttr !== false) {\n          if (value === null || isUndefined(value)) {\n            this.$$element.removeAttr(attrName);\n          } else {\n            if (SIMPLE_ATTR_NAME.test(attrName)) {\n              this.$$element.attr(attrName, value);\n            } else {\n              setSpecialAttr(this.$$element[0], attrName, value);\n            }\n          }\n        }\n\n        // fire observers\n        var $$observers = this.$$observers;\n        if ($$observers) {\n          forEach($$observers[observer], function(fn) {\n            try {\n              fn(value);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          });\n        }\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$observe\n       * @kind function\n       *\n       * @description\n       * Observes an interpolated attribute.\n       *\n       * The observer function will be invoked once during the next `$digest` following\n       * compilation. The observer is then invoked whenever the interpolated value\n       * changes.\n       *\n       * @param {string} key Normalized key. (ie ngAttribute) .\n       * @param {function(interpolatedValue)} fn Function that will be called whenever\n                the interpolated value of the attribute changes.\n       *        See the {@link guide/interpolation#how-text-and-attribute-bindings-work Interpolation\n       *        guide} for more info.\n       * @returns {function()} Returns a deregistration function for this observer.\n       */\n      $observe: function(key, fn) {\n        var attrs = this,\n            $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),\n            listeners = ($$observers[key] || ($$observers[key] = []));\n\n        listeners.push(fn);\n        $rootScope.$evalAsync(function() {\n          if (!listeners.$$inter && attrs.hasOwnProperty(key) && !isUndefined(attrs[key])) {\n            // no one registered attribute interpolation function, so lets call it manually\n            fn(attrs[key]);\n          }\n        });\n\n        return function() {\n          arrayRemove(listeners, fn);\n        };\n      }\n    };\n\n    function setSpecialAttr(element, attrName, value) {\n      // Attributes names that do not start with letters (such as `(click)`) cannot be set using `setAttribute`\n      // so we have to jump through some hoops to get such an attribute\n      // https://github.com/angular/angular.js/pull/13318\n      specialAttrHolder.innerHTML = '<span ' + attrName + '>';\n      var attributes = specialAttrHolder.firstChild.attributes;\n      var attribute = attributes[0];\n      // We have to remove the attribute from its container element before we can add it to the destination element\n      attributes.removeNamedItem(attribute.name);\n      attribute.value = value;\n      element.attributes.setNamedItem(attribute);\n    }\n\n    function safeAddClass($element, className) {\n      try {\n        $element.addClass(className);\n      } catch (e) {\n        // ignore, since it means that we are trying to set class on\n        // SVG element, where class name is read-only.\n      }\n    }\n\n\n    var startSymbol = $interpolate.startSymbol(),\n        endSymbol = $interpolate.endSymbol(),\n        denormalizeTemplate = (startSymbol === '{{' && endSymbol  === '}}')\n            ? identity\n            : function denormalizeTemplate(template) {\n              return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n        },\n        NG_ATTR_BINDING = /^ngAttr[A-Z]/;\n    var MULTI_ELEMENT_DIR_RE = /^(.+)Start$/;\n\n    compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {\n      var bindings = $element.data('$binding') || [];\n\n      if (isArray(binding)) {\n        bindings = bindings.concat(binding);\n      } else {\n        bindings.push(binding);\n      }\n\n      $element.data('$binding', bindings);\n    } : noop;\n\n    compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {\n      safeAddClass($element, 'ng-binding');\n    } : noop;\n\n    compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {\n      var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';\n      $element.data(dataName, scope);\n    } : noop;\n\n    compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {\n      safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');\n    } : noop;\n\n    compile.$$createComment = function(directiveName, comment) {\n      var content = '';\n      if (debugInfoEnabled) {\n        content = ' ' + (directiveName || '') + ': ';\n        if (comment) content += comment + ' ';\n      }\n      return window.document.createComment(content);\n    };\n\n    return compile;\n\n    //================================\n\n    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,\n                        previousCompileContext) {\n      if (!($compileNodes instanceof jqLite)) {\n        // jquery always rewraps, whereas we need to preserve the original selector so that we can\n        // modify it.\n        $compileNodes = jqLite($compileNodes);\n      }\n\n      var NOT_EMPTY = /\\S+/;\n\n      // We can not compile top level text elements since text nodes can be merged and we will\n      // not be able to attach scope data to them, so we will wrap them in <span>\n      for (var i = 0, len = $compileNodes.length; i < len; i++) {\n        var domNode = $compileNodes[i];\n\n        if (domNode.nodeType === NODE_TYPE_TEXT && domNode.nodeValue.match(NOT_EMPTY) /* non-empty */) {\n          jqLiteWrapNode(domNode, $compileNodes[i] = window.document.createElement('span'));\n        }\n      }\n\n      var compositeLinkFn =\n              compileNodes($compileNodes, transcludeFn, $compileNodes,\n                           maxPriority, ignoreDirective, previousCompileContext);\n      compile.$$addScopeClass($compileNodes);\n      var namespace = null;\n      return function publicLinkFn(scope, cloneConnectFn, options) {\n        assertArg(scope, 'scope');\n\n        if (previousCompileContext && previousCompileContext.needsNewScope) {\n          // A parent directive did a replace and a directive on this element asked\n          // for transclusion, which caused us to lose a layer of element on which\n          // we could hold the new transclusion scope, so we will create it manually\n          // here.\n          scope = scope.$parent.$new();\n        }\n\n        options = options || {};\n        var parentBoundTranscludeFn = options.parentBoundTranscludeFn,\n          transcludeControllers = options.transcludeControllers,\n          futureParentElement = options.futureParentElement;\n\n        // When `parentBoundTranscludeFn` is passed, it is a\n        // `controllersBoundTransclude` function (it was previously passed\n        // as `transclude` to directive.link) so we must unwrap it to get\n        // its `boundTranscludeFn`\n        if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) {\n          parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude;\n        }\n\n        if (!namespace) {\n          namespace = detectNamespaceForChildElements(futureParentElement);\n        }\n        var $linkNode;\n        if (namespace !== 'html') {\n          // When using a directive with replace:true and templateUrl the $compileNodes\n          // (or a child element inside of them)\n          // might change, so we need to recreate the namespace adapted compileNodes\n          // for call to the link function.\n          // Note: This will already clone the nodes...\n          $linkNode = jqLite(\n            wrapTemplate(namespace, jqLite('<div>').append($compileNodes).html())\n          );\n        } else if (cloneConnectFn) {\n          // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n          // and sometimes changes the structure of the DOM.\n          $linkNode = JQLitePrototype.clone.call($compileNodes);\n        } else {\n          $linkNode = $compileNodes;\n        }\n\n        if (transcludeControllers) {\n          for (var controllerName in transcludeControllers) {\n            $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);\n          }\n        }\n\n        compile.$$addScopeInfo($linkNode, scope);\n\n        if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n        return $linkNode;\n      };\n    }\n\n    function detectNamespaceForChildElements(parentElement) {\n      // TODO: Make this detect MathML as well...\n      var node = parentElement && parentElement[0];\n      if (!node) {\n        return 'html';\n      } else {\n        return nodeName_(node) !== 'foreignobject' && toString.call(node).match(/SVG/) ? 'svg' : 'html';\n      }\n    }\n\n    /**\n     * Compile function matches each node in nodeList against the directives. Once all directives\n     * for a particular node are collected their compile functions are executed. The compile\n     * functions return values - the linking functions - are combined into a composite linking\n     * function, which is the a linking function for the node.\n     *\n     * @param {NodeList} nodeList an array of nodes or NodeList to compile\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *        scope argument is auto-generated to the new child of the transcluded parent scope.\n     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n     *        the rootElement must be set the jqLite collection of the compile root. This is\n     *        needed so that the jqLite collection items can be replaced with widgets.\n     * @param {number=} maxPriority Max directive priority.\n     * @returns {Function} A composite linking function of all of the matched directives or null.\n     */\n    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n                            previousCompileContext) {\n      var linkFns = [],\n          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;\n\n      for (var i = 0; i < nodeList.length; i++) {\n        attrs = new Attributes();\n\n        // we must always refer to nodeList[i] since the nodes can be replaced underneath us.\n        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n                                        ignoreDirective);\n\n        nodeLinkFn = (directives.length)\n            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n                                      null, [], [], previousCompileContext)\n            : null;\n\n        if (nodeLinkFn && nodeLinkFn.scope) {\n          compile.$$addScopeClass(attrs.$$element);\n        }\n\n        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n                      !(childNodes = nodeList[i].childNodes) ||\n                      !childNodes.length)\n            ? null\n            : compileNodes(childNodes,\n                 nodeLinkFn ? (\n                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n                     && nodeLinkFn.transclude) : transcludeFn);\n\n        if (nodeLinkFn || childLinkFn) {\n          linkFns.push(i, nodeLinkFn, childLinkFn);\n          linkFnFound = true;\n          nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;\n        }\n\n        //use the previous context only for the first element in the virtual group\n        previousCompileContext = null;\n      }\n\n      // return a linking function if we have found anything, null otherwise\n      return linkFnFound ? compositeLinkFn : null;\n\n      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n        var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;\n        var stableNodeList;\n\n\n        if (nodeLinkFnFound) {\n          // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our\n          // offsets don't get screwed up\n          var nodeListLength = nodeList.length;\n          stableNodeList = new Array(nodeListLength);\n\n          // create a sparse array by only copying the elements which have a linkFn\n          for (i = 0; i < linkFns.length; i += 3) {\n            idx = linkFns[i];\n            stableNodeList[idx] = nodeList[idx];\n          }\n        } else {\n          stableNodeList = nodeList;\n        }\n\n        for (i = 0, ii = linkFns.length; i < ii;) {\n          node = stableNodeList[linkFns[i++]];\n          nodeLinkFn = linkFns[i++];\n          childLinkFn = linkFns[i++];\n\n          if (nodeLinkFn) {\n            if (nodeLinkFn.scope) {\n              childScope = scope.$new();\n              compile.$$addScopeInfo(jqLite(node), childScope);\n            } else {\n              childScope = scope;\n            }\n\n            if (nodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(\n                  scope, nodeLinkFn.transclude, parentBoundTranscludeFn);\n\n            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n              childBoundTranscludeFn = parentBoundTranscludeFn;\n\n            } else if (!parentBoundTranscludeFn && transcludeFn) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n            } else {\n              childBoundTranscludeFn = null;\n            }\n\n            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n          } else if (childLinkFn) {\n            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n          }\n        }\n      }\n    }\n\n    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) {\n      function boundTranscludeFn(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {\n\n        if (!transcludedScope) {\n          transcludedScope = scope.$new(false, containingScope);\n          transcludedScope.$$transcluded = true;\n        }\n\n        return transcludeFn(transcludedScope, cloneFn, {\n          parentBoundTranscludeFn: previousBoundTranscludeFn,\n          transcludeControllers: controllers,\n          futureParentElement: futureParentElement\n        });\n      }\n\n      // We need  to attach the transclusion slots onto the `boundTranscludeFn`\n      // so that they are available inside the `controllersBoundTransclude` function\n      var boundSlots = boundTranscludeFn.$$slots = createMap();\n      for (var slotName in transcludeFn.$$slots) {\n        if (transcludeFn.$$slots[slotName]) {\n          boundSlots[slotName] = createBoundTranscludeFn(scope, transcludeFn.$$slots[slotName], previousBoundTranscludeFn);\n        } else {\n          boundSlots[slotName] = null;\n        }\n      }\n\n      return boundTranscludeFn;\n    }\n\n    /**\n     * Looks for directives on the given node and adds them to the directive collection which is\n     * sorted.\n     *\n     * @param node Node to search.\n     * @param directives An array to which the directives are added to. This array is sorted before\n     *        the function returns.\n     * @param attrs The shared attrs object which is used to populate the normalized attributes.\n     * @param {number=} maxPriority Max directive priority.\n     */\n    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      var nodeType = node.nodeType,\n          attrsMap = attrs.$attr,\n          match,\n          nodeName,\n          className;\n\n      switch (nodeType) {\n        case NODE_TYPE_ELEMENT: /* Element */\n\n          nodeName = nodeName_(node);\n\n          // use the node name: <directive>\n          addDirective(directives,\n              directiveNormalize(nodeName), 'E', maxPriority, ignoreDirective);\n\n          // iterate over the attributes\n          for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,\n                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n            var attrStartName = false;\n            var attrEndName = false;\n\n            attr = nAttrs[j];\n            name = attr.name;\n            value = trim(attr.value);\n\n            // support ngAttr attribute binding\n            ngAttrName = directiveNormalize(name);\n            isNgAttr = NG_ATTR_BINDING.test(ngAttrName);\n            if (isNgAttr) {\n              name = name.replace(PREFIX_REGEXP, '')\n                .substr(8).replace(/_(.)/g, function(match, letter) {\n                  return letter.toUpperCase();\n                });\n            }\n\n            var multiElementMatch = ngAttrName.match(MULTI_ELEMENT_DIR_RE);\n            if (multiElementMatch && directiveIsMultiElement(multiElementMatch[1])) {\n              attrStartName = name;\n              attrEndName = name.substr(0, name.length - 5) + 'end';\n              name = name.substr(0, name.length - 6);\n            }\n\n            nName = directiveNormalize(name.toLowerCase());\n            attrsMap[nName] = name;\n            if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n                attrs[nName] = value;\n                if (getBooleanAttrName(node, nName)) {\n                  attrs[nName] = true; // presence means true\n                }\n            }\n            addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);\n            addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n                          attrEndName);\n          }\n\n          if (nodeName === 'input' && node.getAttribute('type') === 'hidden') {\n            // Hidden input elements can have strange behaviour when navigating back to the page\n            // This tells the browser not to try to cache and reinstate previous values\n            node.setAttribute('autocomplete', 'off');\n          }\n\n          // use class as directive\n          if (!cssClassDirectivesEnabled) break;\n          className = node.className;\n          if (isObject(className)) {\n              // Maybe SVGAnimatedString\n              className = className.animVal;\n          }\n          if (isString(className) && className !== '') {\n            while ((match = CLASS_DIRECTIVE_REGEXP.exec(className))) {\n              nName = directiveNormalize(match[2]);\n              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[3]);\n              }\n              className = className.substr(match.index + match[0].length);\n            }\n          }\n          break;\n        case NODE_TYPE_TEXT: /* Text Node */\n          if (msie === 11) {\n            // Workaround for #11781\n            while (node.parentNode && node.nextSibling && node.nextSibling.nodeType === NODE_TYPE_TEXT) {\n              node.nodeValue = node.nodeValue + node.nextSibling.nodeValue;\n              node.parentNode.removeChild(node.nextSibling);\n            }\n          }\n          addTextInterpolateDirective(directives, node.nodeValue);\n          break;\n        case NODE_TYPE_COMMENT: /* Comment */\n          if (!commentDirectivesEnabled) break;\n          collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective);\n          break;\n      }\n\n      directives.sort(byPriority);\n      return directives;\n    }\n\n    function collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      // function created because of performance, try/catch disables\n      // the optimization of the whole function #14848\n      try {\n        var match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n        if (match) {\n          var nName = directiveNormalize(match[1]);\n          if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n            attrs[nName] = trim(match[2]);\n          }\n        }\n      } catch (e) {\n        // turns out that under some circumstances IE9 throws errors when one attempts to read\n        // comment's node value.\n        // Just ignore it and continue. (Can't seem to reproduce in test case.)\n      }\n    }\n\n    /**\n     * Given a node with a directive-start it collects all of the siblings until it finds\n     * directive-end.\n     * @param node\n     * @param attrStart\n     * @param attrEnd\n     * @returns {*}\n     */\n    function groupScan(node, attrStart, attrEnd) {\n      var nodes = [];\n      var depth = 0;\n      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n        do {\n          if (!node) {\n            throw $compileMinErr('uterdir',\n                      'Unterminated attribute, found \\'{0}\\' but no matching \\'{1}\\' found.',\n                      attrStart, attrEnd);\n          }\n          if (node.nodeType === NODE_TYPE_ELEMENT) {\n            if (node.hasAttribute(attrStart)) depth++;\n            if (node.hasAttribute(attrEnd)) depth--;\n          }\n          nodes.push(node);\n          node = node.nextSibling;\n        } while (depth > 0);\n      } else {\n        nodes.push(node);\n      }\n\n      return jqLite(nodes);\n    }\n\n    /**\n     * Wrapper for linking function which converts normal linking function into a grouped\n     * linking function.\n     * @param linkFn\n     * @param attrStart\n     * @param attrEnd\n     * @returns {Function}\n     */\n    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n      return function groupedElementsLink(scope, element, attrs, controllers, transcludeFn) {\n        element = groupScan(element[0], attrStart, attrEnd);\n        return linkFn(scope, element, attrs, controllers, transcludeFn);\n      };\n    }\n\n    /**\n     * A function generator that is used to support both eager and lazy compilation\n     * linking function.\n     * @param eager\n     * @param $compileNodes\n     * @param transcludeFn\n     * @param maxPriority\n     * @param ignoreDirective\n     * @param previousCompileContext\n     * @returns {Function}\n     */\n    function compilationGenerator(eager, $compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) {\n      var compiled;\n\n      if (eager) {\n        return compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n      }\n      return /** @this */ function lazyCompilation() {\n        if (!compiled) {\n          compiled = compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n\n          // Null out all of these references in order to make them eligible for garbage collection\n          // since this is a potentially long lived closure\n          $compileNodes = transcludeFn = previousCompileContext = null;\n        }\n        return compiled.apply(this, arguments);\n      };\n    }\n\n    /**\n     * Once the directives have been collected, their compile functions are executed. This method\n     * is responsible for inlining directive templates as well as terminating the application\n     * of the directives if the terminal directive has been reached.\n     *\n     * @param {Array} directives Array of collected directives to execute their compile function.\n     *        this needs to be pre-sorted by priority order.\n     * @param {Node} compileNode The raw DOM node to apply the compile functions to\n     * @param {Object} templateAttrs The shared attribute function\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *                                                  scope argument is auto-generated to the new\n     *                                                  child of the transcluded parent scope.\n     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n     *                              argument has the root jqLite array so that we can replace nodes\n     *                              on it.\n     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n     *                                           compiling the transclusion.\n     * @param {Array.<Function>} preLinkFns\n     * @param {Array.<Function>} postLinkFns\n     * @param {Object} previousCompileContext Context used for previous compilation of the current\n     *                                        node\n     * @returns {Function} linkFn\n     */\n    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n                                   previousCompileContext) {\n      previousCompileContext = previousCompileContext || {};\n\n      var terminalPriority = -Number.MAX_VALUE,\n          newScopeDirective = previousCompileContext.newScopeDirective,\n          controllerDirectives = previousCompileContext.controllerDirectives,\n          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n          templateDirective = previousCompileContext.templateDirective,\n          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n          hasTranscludeDirective = false,\n          hasTemplate = false,\n          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n          $compileNode = templateAttrs.$$element = jqLite(compileNode),\n          directive,\n          directiveName,\n          $template,\n          replaceDirective = originalReplaceDirective,\n          childTranscludeFn = transcludeFn,\n          linkFn,\n          didScanForMultipleTransclusion = false,\n          mightHaveMultipleTransclusionError = false,\n          directiveValue;\n\n      // executes all directives on the current element\n      for (var i = 0, ii = directives.length; i < ii; i++) {\n        directive = directives[i];\n        var attrStart = directive.$$start;\n        var attrEnd = directive.$$end;\n\n        // collect multiblock sections\n        if (attrStart) {\n          $compileNode = groupScan(compileNode, attrStart, attrEnd);\n        }\n        $template = undefined;\n\n        if (terminalPriority > directive.priority) {\n          break; // prevent further processing of directives\n        }\n\n        directiveValue = directive.scope;\n\n        if (directiveValue) {\n\n          // skip the check for directives with async templates, we'll check the derived sync\n          // directive when the template arrives\n          if (!directive.templateUrl) {\n            if (isObject(directiveValue)) {\n              // This directive is trying to add an isolated scope.\n              // Check that there is no scope of any kind already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,\n                                directive, $compileNode);\n              newIsolateScopeDirective = directive;\n            } else {\n              // This directive is trying to add a child scope.\n              // Check that there is no isolated scope already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n                                $compileNode);\n            }\n          }\n\n          newScopeDirective = newScopeDirective || directive;\n        }\n\n        directiveName = directive.name;\n\n        // If we encounter a condition that can result in transclusion on the directive,\n        // then scan ahead in the remaining directives for others that may cause a multiple\n        // transclusion error to be thrown during the compilation process.  If a matching directive\n        // is found, then we know that when we encounter a transcluded directive, we need to eagerly\n        // compile the `transclude` function rather than doing it lazily in order to throw\n        // exceptions at the correct time\n        if (!didScanForMultipleTransclusion && ((directive.replace && (directive.templateUrl || directive.template))\n            || (directive.transclude && !directive.$$tlb))) {\n                var candidateDirective;\n\n                for (var scanningIndex = i + 1; (candidateDirective = directives[scanningIndex++]);) {\n                    if ((candidateDirective.transclude && !candidateDirective.$$tlb)\n                        || (candidateDirective.replace && (candidateDirective.templateUrl || candidateDirective.template))) {\n                        mightHaveMultipleTransclusionError = true;\n                        break;\n                    }\n                }\n\n                didScanForMultipleTransclusion = true;\n        }\n\n        if (!directive.templateUrl && directive.controller) {\n          controllerDirectives = controllerDirectives || createMap();\n          assertNoDuplicate('\\'' + directiveName + '\\' controller',\n              controllerDirectives[directiveName], directive, $compileNode);\n          controllerDirectives[directiveName] = directive;\n        }\n\n        directiveValue = directive.transclude;\n\n        if (directiveValue) {\n          hasTranscludeDirective = true;\n\n          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n          // This option should only be used by directives that know how to safely handle element transclusion,\n          // where the transcluded nodes are added or replaced after linking.\n          if (!directive.$$tlb) {\n            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n            nonTlbTranscludeDirective = directive;\n          }\n\n          if (directiveValue === 'element') {\n            hasElementTranscludeDirective = true;\n            terminalPriority = directive.priority;\n            $template = $compileNode;\n            $compileNode = templateAttrs.$$element =\n                jqLite(compile.$$createComment(directiveName, templateAttrs[directiveName]));\n            compileNode = $compileNode[0];\n            replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n            // Support: Chrome < 50\n            // https://github.com/angular/angular.js/issues/14041\n\n            // In the versions of V8 prior to Chrome 50, the document fragment that is created\n            // in the `replaceWith` function is improperly garbage collected despite still\n            // being referenced by the `parentNode` property of all of the child nodes.  By adding\n            // a reference to the fragment via a different property, we can avoid that incorrect\n            // behavior.\n            // TODO: remove this line after Chrome 50 has been released\n            $template[0].$$parentNode = $template[0].parentNode;\n\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, terminalPriority,\n                                        replaceDirective && replaceDirective.name, {\n                                          // Don't pass in:\n                                          // - controllerDirectives - otherwise we'll create duplicates controllers\n                                          // - newIsolateScopeDirective or templateDirective - combining templates with\n                                          //   element transclusion doesn't make sense.\n                                          //\n                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n                                          // on the same element more than once.\n                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective\n                                        });\n          } else {\n\n            var slots = createMap();\n\n            $template = jqLite(jqLiteClone(compileNode)).contents();\n\n            if (isObject(directiveValue)) {\n\n              // We have transclusion slots,\n              // collect them up, compile them and store their transclusion functions\n              $template = [];\n\n              var slotMap = createMap();\n              var filledSlots = createMap();\n\n              // Parse the element selectors\n              forEach(directiveValue, function(elementSelector, slotName) {\n                // If an element selector starts with a ? then it is optional\n                var optional = (elementSelector.charAt(0) === '?');\n                elementSelector = optional ? elementSelector.substring(1) : elementSelector;\n\n                slotMap[elementSelector] = slotName;\n\n                // We explicitly assign `null` since this implies that a slot was defined but not filled.\n                // Later when calling boundTransclusion functions with a slot name we only error if the\n                // slot is `undefined`\n                slots[slotName] = null;\n\n                // filledSlots contains `true` for all slots that are either optional or have been\n                // filled. This is used to check that we have not missed any required slots\n                filledSlots[slotName] = optional;\n              });\n\n              // Add the matching elements into their slot\n              forEach($compileNode.contents(), function(node) {\n                var slotName = slotMap[directiveNormalize(nodeName_(node))];\n                if (slotName) {\n                  filledSlots[slotName] = true;\n                  slots[slotName] = slots[slotName] || [];\n                  slots[slotName].push(node);\n                } else {\n                  $template.push(node);\n                }\n              });\n\n              // Check for required slots that were not filled\n              forEach(filledSlots, function(filled, slotName) {\n                if (!filled) {\n                  throw $compileMinErr('reqslot', 'Required transclusion slot `{0}` was not filled.', slotName);\n                }\n              });\n\n              for (var slotName in slots) {\n                if (slots[slotName]) {\n                  // Only define a transclusion function if the slot was filled\n                  slots[slotName] = compilationGenerator(mightHaveMultipleTransclusionError, slots[slotName], transcludeFn);\n                }\n              }\n            }\n\n            $compileNode.empty(); // clear contents\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, undefined,\n                undefined, { needsNewScope: directive.$$isolateScope || directive.$$newScope});\n            childTranscludeFn.$$slots = slots;\n          }\n        }\n\n        if (directive.template) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          directiveValue = (isFunction(directive.template))\n              ? directive.template($compileNode, templateAttrs)\n              : directive.template;\n\n          directiveValue = denormalizeTemplate(directiveValue);\n\n          if (directive.replace) {\n            replaceDirective = directive;\n            if (jqLiteIsTextNode(directiveValue)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  directiveName, '');\n            }\n\n            replaceWith(jqCollection, $compileNode, compileNode);\n\n            var newTemplateAttrs = {$attr: {}};\n\n            // combine directives from the original node and from the template:\n            // - take the array of directives for this element\n            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n            // - collect directives from the template and sort them by priority\n            // - combine directives as: processed + template + unprocessed\n            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n            if (newIsolateScopeDirective || newScopeDirective) {\n              // The original directive caused the current element to be replaced but this element\n              // also needs to have a new scope, so we need to tell the template directives\n              // that they would need to get their scope from further up, if they require transclusion\n              markDirectiveScope(templateDirectives, newIsolateScopeDirective, newScopeDirective);\n            }\n            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n            ii = directives.length;\n          } else {\n            $compileNode.html(directiveValue);\n          }\n        }\n\n        if (directive.templateUrl) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          if (directive.replace) {\n            replaceDirective = directive;\n          }\n\n          // eslint-disable-next-line no-func-assign\n          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n                controllerDirectives: controllerDirectives,\n                newScopeDirective: (newScopeDirective !== directive) && newScopeDirective,\n                newIsolateScopeDirective: newIsolateScopeDirective,\n                templateDirective: templateDirective,\n                nonTlbTranscludeDirective: nonTlbTranscludeDirective\n              });\n          ii = directives.length;\n        } else if (directive.compile) {\n          try {\n            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n            var context = directive.$$originalDirective || directive;\n            if (isFunction(linkFn)) {\n              addLinkFns(null, bind(context, linkFn), attrStart, attrEnd);\n            } else if (linkFn) {\n              addLinkFns(bind(context, linkFn.pre), bind(context, linkFn.post), attrStart, attrEnd);\n            }\n          } catch (e) {\n            $exceptionHandler(e, startingTag($compileNode));\n          }\n        }\n\n        if (directive.terminal) {\n          nodeLinkFn.terminal = true;\n          terminalPriority = Math.max(terminalPriority, directive.priority);\n        }\n\n      }\n\n      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n      nodeLinkFn.templateOnThisElement = hasTemplate;\n      nodeLinkFn.transclude = childTranscludeFn;\n\n      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n      // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n      return nodeLinkFn;\n\n      ////////////////////\n\n      function addLinkFns(pre, post, attrStart, attrEnd) {\n        if (pre) {\n          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n          pre.require = directive.require;\n          pre.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n          }\n          preLinkFns.push(pre);\n        }\n        if (post) {\n          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n          post.require = directive.require;\n          post.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            post = cloneAndAnnotateFn(post, {isolateScope: true});\n          }\n          postLinkFns.push(post);\n        }\n      }\n\n      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n        var i, ii, linkFn, isolateScope, controllerScope, elementControllers, transcludeFn, $element,\n            attrs, scopeBindingInfo;\n\n        if (compileNode === linkNode) {\n          attrs = templateAttrs;\n          $element = templateAttrs.$$element;\n        } else {\n          $element = jqLite(linkNode);\n          attrs = new Attributes($element, templateAttrs);\n        }\n\n        controllerScope = scope;\n        if (newIsolateScopeDirective) {\n          isolateScope = scope.$new(true);\n        } else if (newScopeDirective) {\n          controllerScope = scope.$parent;\n        }\n\n        if (boundTranscludeFn) {\n          // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`\n          // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`\n          transcludeFn = controllersBoundTransclude;\n          transcludeFn.$$boundTransclude = boundTranscludeFn;\n          // expose the slots on the `$transclude` function\n          transcludeFn.isSlotFilled = function(slotName) {\n            return !!boundTranscludeFn.$$slots[slotName];\n          };\n        }\n\n        if (controllerDirectives) {\n          elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective);\n        }\n\n        if (newIsolateScopeDirective) {\n          // Initialize isolate scope bindings for new isolate scope directive.\n          compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||\n              templateDirective === newIsolateScopeDirective.$$originalDirective)));\n          compile.$$addScopeClass($element, true);\n          isolateScope.$$isolateBindings =\n              newIsolateScopeDirective.$$isolateBindings;\n          scopeBindingInfo = initializeDirectiveBindings(scope, attrs, isolateScope,\n                                        isolateScope.$$isolateBindings,\n                                        newIsolateScopeDirective);\n          if (scopeBindingInfo.removeWatches) {\n            isolateScope.$on('$destroy', scopeBindingInfo.removeWatches);\n          }\n        }\n\n        // Initialize bindToController bindings\n        for (var name in elementControllers) {\n          var controllerDirective = controllerDirectives[name];\n          var controller = elementControllers[name];\n          var bindings = controllerDirective.$$bindings.bindToController;\n\n          if (preAssignBindingsEnabled) {\n            if (bindings) {\n              controller.bindingInfo =\n                initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n            } else {\n              controller.bindingInfo = {};\n            }\n\n            var controllerResult = controller();\n            if (controllerResult !== controller.instance) {\n              // If the controller constructor has a return value, overwrite the instance\n              // from setupControllers\n              controller.instance = controllerResult;\n              $element.data('$' + controllerDirective.name + 'Controller', controllerResult);\n              if (controller.bindingInfo.removeWatches) {\n                controller.bindingInfo.removeWatches();\n              }\n              controller.bindingInfo =\n                initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n            }\n          } else {\n            controller.instance = controller();\n            $element.data('$' + controllerDirective.name + 'Controller', controller.instance);\n            controller.bindingInfo =\n              initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n          }\n        }\n\n        // Bind the required controllers to the controller, if `require` is an object and `bindToController` is truthy\n        forEach(controllerDirectives, function(controllerDirective, name) {\n          var require = controllerDirective.require;\n          if (controllerDirective.bindToController && !isArray(require) && isObject(require)) {\n            extend(elementControllers[name].instance, getControllers(name, require, $element, elementControllers));\n          }\n        });\n\n        // Handle the init and destroy lifecycle hooks on all controllers that have them\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$onChanges)) {\n            try {\n              controllerInstance.$onChanges(controller.bindingInfo.initialChanges);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$onInit)) {\n            try {\n              controllerInstance.$onInit();\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$doCheck)) {\n            controllerScope.$watch(function() { controllerInstance.$doCheck(); });\n            controllerInstance.$doCheck();\n          }\n          if (isFunction(controllerInstance.$onDestroy)) {\n            controllerScope.$on('$destroy', function callOnDestroyHook() {\n              controllerInstance.$onDestroy();\n            });\n          }\n        });\n\n        // PRELINKING\n        for (i = 0, ii = preLinkFns.length; i < ii; i++) {\n          linkFn = preLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // RECURSION\n        // We only pass the isolate scope, if the isolate directive has a template,\n        // otherwise the child elements do not belong to the isolate directive.\n        var scopeToChild = scope;\n        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n          scopeToChild = isolateScope;\n        }\n        if (childLinkFn) {\n          childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n        }\n\n        // POSTLINKING\n        for (i = postLinkFns.length - 1; i >= 0; i--) {\n          linkFn = postLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // Trigger $postLink lifecycle hooks\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$postLink)) {\n            controllerInstance.$postLink();\n          }\n        });\n\n        // This is the function that is injected as `$transclude`.\n        // Note: all arguments are optional!\n        function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement, slotName) {\n          var transcludeControllers;\n          // No scope passed in:\n          if (!isScope(scope)) {\n            slotName = futureParentElement;\n            futureParentElement = cloneAttachFn;\n            cloneAttachFn = scope;\n            scope = undefined;\n          }\n\n          if (hasElementTranscludeDirective) {\n            transcludeControllers = elementControllers;\n          }\n          if (!futureParentElement) {\n            futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;\n          }\n          if (slotName) {\n            // slotTranscludeFn can be one of three things:\n            //  * a transclude function - a filled slot\n            //  * `null` - an optional slot that was not filled\n            //  * `undefined` - a slot that was not declared (i.e. invalid)\n            var slotTranscludeFn = boundTranscludeFn.$$slots[slotName];\n            if (slotTranscludeFn) {\n              return slotTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n            } else if (isUndefined(slotTranscludeFn)) {\n              throw $compileMinErr('noslot',\n               'No parent directive that requires a transclusion with slot name \"{0}\". ' +\n               'Element: {1}',\n               slotName, startingTag($element));\n            }\n          } else {\n            return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n          }\n        }\n      }\n    }\n\n    function getControllers(directiveName, require, $element, elementControllers) {\n      var value;\n\n      if (isString(require)) {\n        var match = require.match(REQUIRE_PREFIX_REGEXP);\n        var name = require.substring(match[0].length);\n        var inheritType = match[1] || match[3];\n        var optional = match[2] === '?';\n\n        //If only parents then start at the parent element\n        if (inheritType === '^^') {\n          $element = $element.parent();\n        //Otherwise attempt getting the controller from elementControllers in case\n        //the element is transcluded (and has no data) and to avoid .data if possible\n        } else {\n          value = elementControllers && elementControllers[name];\n          value = value && value.instance;\n        }\n\n        if (!value) {\n          var dataName = '$' + name + 'Controller';\n          value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName);\n        }\n\n        if (!value && !optional) {\n          throw $compileMinErr('ctreq',\n              'Controller \\'{0}\\', required by directive \\'{1}\\', can\\'t be found!',\n              name, directiveName);\n        }\n      } else if (isArray(require)) {\n        value = [];\n        for (var i = 0, ii = require.length; i < ii; i++) {\n          value[i] = getControllers(directiveName, require[i], $element, elementControllers);\n        }\n      } else if (isObject(require)) {\n        value = {};\n        forEach(require, function(controller, property) {\n          value[property] = getControllers(directiveName, controller, $element, elementControllers);\n        });\n      }\n\n      return value || null;\n    }\n\n    function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective) {\n      var elementControllers = createMap();\n      for (var controllerKey in controllerDirectives) {\n        var directive = controllerDirectives[controllerKey];\n        var locals = {\n          $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n          $element: $element,\n          $attrs: attrs,\n          $transclude: transcludeFn\n        };\n\n        var controller = directive.controller;\n        if (controller === '@') {\n          controller = attrs[directive.name];\n        }\n\n        var controllerInstance = $controller(controller, locals, true, directive.controllerAs);\n\n        // For directives with element transclusion the element is a comment.\n        // In this case .data will not attach any data.\n        // Instead, we save the controllers for the element in a local hash and attach to .data\n        // later, once we have the actual element.\n        elementControllers[directive.name] = controllerInstance;\n        $element.data('$' + directive.name + 'Controller', controllerInstance.instance);\n      }\n      return elementControllers;\n    }\n\n    // Depending upon the context in which a directive finds itself it might need to have a new isolated\n    // or child scope created. For instance:\n    // * if the directive has been pulled into a template because another directive with a higher priority\n    // asked for element transclusion\n    // * if the directive itself asks for transclusion but it is at the root of a template and the original\n    // element was replaced. See https://github.com/angular/angular.js/issues/12936\n    function markDirectiveScope(directives, isolateScope, newScope) {\n      for (var j = 0, jj = directives.length; j < jj; j++) {\n        directives[j] = inherit(directives[j], {$$isolateScope: isolateScope, $$newScope: newScope});\n      }\n    }\n\n    /**\n     * looks up the directive and decorates it with exception handling and proper parameters. We\n     * call this the boundDirective.\n     *\n     * @param {string} name name of the directive to look up.\n     * @param {string} location The directive must be found in specific format.\n     *   String containing any of theses characters:\n     *\n     *   * `E`: element name\n     *   * `A': attribute\n     *   * `C`: class\n     *   * `M`: comment\n     * @returns {boolean} true if directive was added.\n     */\n    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n                          endAttrName) {\n      if (name === ignoreDirective) return null;\n      var match = null;\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if ((isUndefined(maxPriority) || maxPriority > directive.priority) &&\n               directive.restrict.indexOf(location) !== -1) {\n            if (startAttrName) {\n              directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n            }\n            if (!directive.$$bindings) {\n              var bindings = directive.$$bindings =\n                  parseDirectiveBindings(directive, directive.name);\n              if (isObject(bindings.isolateScope)) {\n                directive.$$isolateBindings = bindings.isolateScope;\n              }\n            }\n            tDirectives.push(directive);\n            match = directive;\n          }\n        }\n      }\n      return match;\n    }\n\n\n    /**\n     * looks up the directive and returns true if it is a multi-element directive,\n     * and therefore requires DOM nodes between -start and -end markers to be grouped\n     * together.\n     *\n     * @param {string} name name of the directive to look up.\n     * @returns true if directive was registered as multi-element.\n     */\n    function directiveIsMultiElement(name) {\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if (directive.multiElement) {\n            return true;\n          }\n        }\n      }\n      return false;\n    }\n\n    /**\n     * When the element is replaced with HTML template then the new attributes\n     * on the template need to be merged with the existing attributes in the DOM.\n     * The desired effect is to have both of the attributes present.\n     *\n     * @param {object} dst destination attributes (original DOM)\n     * @param {object} src source attributes (from the directive template)\n     */\n    function mergeTemplateAttributes(dst, src) {\n      var srcAttr = src.$attr,\n          dstAttr = dst.$attr;\n\n      // reapply the old attributes to the new element\n      forEach(dst, function(value, key) {\n        if (key.charAt(0) !== '$') {\n          if (src[key] && src[key] !== value) {\n            value += (key === 'style' ? ';' : ' ') + src[key];\n          }\n          dst.$set(key, value, true, srcAttr[key]);\n        }\n      });\n\n      // copy the new attributes on the old attrs object\n      forEach(src, function(value, key) {\n        // Check if we already set this attribute in the loop above.\n        // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n        // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n        // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n        if (!dst.hasOwnProperty(key) && key.charAt(0) !== '$') {\n          dst[key] = value;\n\n          if (key !== 'class' && key !== 'style') {\n            dstAttr[key] = srcAttr[key];\n          }\n        }\n      });\n    }\n\n\n    function compileTemplateUrl(directives, $compileNode, tAttrs,\n        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n      var linkQueue = [],\n          afterTemplateNodeLinkFn,\n          afterTemplateChildLinkFn,\n          beforeTemplateCompileNode = $compileNode[0],\n          origAsyncDirective = directives.shift(),\n          derivedSyncDirective = inherit(origAsyncDirective, {\n            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n          }),\n          templateUrl = (isFunction(origAsyncDirective.templateUrl))\n              ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n              : origAsyncDirective.templateUrl,\n          templateNamespace = origAsyncDirective.templateNamespace;\n\n      $compileNode.empty();\n\n      $templateRequest(templateUrl)\n        .then(function(content) {\n          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n          content = denormalizeTemplate(content);\n\n          if (origAsyncDirective.replace) {\n            if (jqLiteIsTextNode(content)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(templateNamespace, trim(content)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  origAsyncDirective.name, templateUrl);\n            }\n\n            tempTemplateAttrs = {$attr: {}};\n            replaceWith($rootElement, $compileNode, compileNode);\n            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n            if (isObject(origAsyncDirective.scope)) {\n              // the original directive that caused the template to be loaded async required\n              // an isolate scope\n              markDirectiveScope(templateDirectives, true);\n            }\n            directives = templateDirectives.concat(directives);\n            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n          } else {\n            compileNode = beforeTemplateCompileNode;\n            $compileNode.html(content);\n          }\n\n          directives.unshift(derivedSyncDirective);\n\n          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n              previousCompileContext);\n          forEach($rootElement, function(node, i) {\n            if (node === compileNode) {\n              $rootElement[i] = $compileNode[0];\n            }\n          });\n          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n          while (linkQueue.length) {\n            var scope = linkQueue.shift(),\n                beforeTemplateLinkNode = linkQueue.shift(),\n                linkRootElement = linkQueue.shift(),\n                boundTranscludeFn = linkQueue.shift(),\n                linkNode = $compileNode[0];\n\n            if (scope.$$destroyed) continue;\n\n            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n              var oldClasses = beforeTemplateLinkNode.className;\n\n              if (!(previousCompileContext.hasElementTranscludeDirective &&\n                  origAsyncDirective.replace)) {\n                // it was cloned therefore we have to clone as well.\n                linkNode = jqLiteClone(compileNode);\n              }\n              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n              // Copy in CSS classes from original node\n              safeAddClass(jqLite(linkNode), oldClasses);\n            }\n            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n            } else {\n              childBoundTranscludeFn = boundTranscludeFn;\n            }\n            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n              childBoundTranscludeFn);\n          }\n          linkQueue = null;\n        });\n\n      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n        var childBoundTranscludeFn = boundTranscludeFn;\n        if (scope.$$destroyed) return;\n        if (linkQueue) {\n          linkQueue.push(scope,\n                         node,\n                         rootElement,\n                         childBoundTranscludeFn);\n        } else {\n          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n          }\n          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n        }\n      };\n    }\n\n\n    /**\n     * Sorting function for bound directives.\n     */\n    function byPriority(a, b) {\n      var diff = b.priority - a.priority;\n      if (diff !== 0) return diff;\n      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n      return a.index - b.index;\n    }\n\n    function assertNoDuplicate(what, previousDirective, directive, element) {\n\n      function wrapModuleNameIfDefined(moduleName) {\n        return moduleName ?\n          (' (module: ' + moduleName + ')') :\n          '';\n      }\n\n      if (previousDirective) {\n        throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}',\n            previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName),\n            directive.name, wrapModuleNameIfDefined(directive.$$moduleName), what, startingTag(element));\n      }\n    }\n\n\n    function addTextInterpolateDirective(directives, text) {\n      var interpolateFn = $interpolate(text, true);\n      if (interpolateFn) {\n        directives.push({\n          priority: 0,\n          compile: function textInterpolateCompileFn(templateNode) {\n            var templateNodeParent = templateNode.parent(),\n                hasCompileParent = !!templateNodeParent.length;\n\n            // When transcluding a template that has bindings in the root\n            // we don't have a parent and thus need to add the class during linking fn.\n            if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);\n\n            return function textInterpolateLinkFn(scope, node) {\n              var parent = node.parent();\n              if (!hasCompileParent) compile.$$addBindingClass(parent);\n              compile.$$addBindingInfo(parent, interpolateFn.expressions);\n              scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n                node[0].nodeValue = value;\n              });\n            };\n          }\n        });\n      }\n    }\n\n\n    function wrapTemplate(type, template) {\n      type = lowercase(type || 'html');\n      switch (type) {\n      case 'svg':\n      case 'math':\n        var wrapper = window.document.createElement('div');\n        wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>';\n        return wrapper.childNodes[0].childNodes;\n      default:\n        return template;\n      }\n    }\n\n\n    function getTrustedContext(node, attrNormalizedName) {\n      if (attrNormalizedName === 'srcdoc') {\n        return $sce.HTML;\n      }\n      var tag = nodeName_(node);\n      // All tags with src attributes require a RESOURCE_URL value, except for\n      // img and various html5 media tags.\n      if (attrNormalizedName === 'src' || attrNormalizedName === 'ngSrc') {\n        if (['img', 'video', 'audio', 'source', 'track'].indexOf(tag) === -1) {\n          return $sce.RESOURCE_URL;\n        }\n      // maction[xlink:href] can source SVG.  It's not limited to <maction>.\n      } else if (attrNormalizedName === 'xlinkHref' ||\n          (tag === 'form' && attrNormalizedName === 'action')\n      ) {\n        return $sce.RESOURCE_URL;\n      }\n    }\n\n\n    function addAttrInterpolateDirective(node, directives, value, name, isNgAttr) {\n      var trustedContext = getTrustedContext(node, name);\n      var mustHaveExpression = !isNgAttr;\n      var allOrNothing = ALL_OR_NOTHING_ATTRS[name] || isNgAttr;\n\n      var interpolateFn = $interpolate(value, mustHaveExpression, trustedContext, allOrNothing);\n\n      // no interpolation found -> ignore\n      if (!interpolateFn) return;\n\n      if (name === 'multiple' && nodeName_(node) === 'select') {\n        throw $compileMinErr('selmulti',\n            'Binding to the \\'multiple\\' attribute is not supported. Element: {0}',\n            startingTag(node));\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function() {\n            return {\n              pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n                var $$observers = (attr.$$observers || (attr.$$observers = createMap()));\n\n                if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n                  throw $compileMinErr('nodomevents',\n                      'Interpolations for HTML DOM event attributes are disallowed.  Please use the ' +\n                          'ng- versions (such as ng-click instead of onclick) instead.');\n                }\n\n                // If the attribute has changed since last $interpolate()ed\n                var newValue = attr[name];\n                if (newValue !== value) {\n                  // we need to interpolate again since the attribute value has been updated\n                  // (e.g. by another directive's compile function)\n                  // ensure unset/empty values make interpolateFn falsy\n                  interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);\n                  value = newValue;\n                }\n\n                // if attribute was updated so that there is no interpolation going on we don't want to\n                // register any observers\n                if (!interpolateFn) return;\n\n                // initialize attr object so that it's ready in case we need the value for isolate\n                // scope initialization, otherwise the value would not be available from isolate\n                // directive's linking fn during linking phase\n                attr[name] = interpolateFn(scope);\n\n                ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n                (attr.$$observers && attr.$$observers[name].$$scope || scope).\n                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n                    //special case for class attribute addition + removal\n                    //so that class changes can tap into the animation\n                    //hooks provided by the $animate service. Be sure to\n                    //skip animations when the first digest occurs (when\n                    //both the new and the old values are the same) since\n                    //the CSS classes are the non-interpolated values\n                    if (name === 'class' && newValue !== oldValue) {\n                      attr.$updateClass(newValue, oldValue);\n                    } else {\n                      attr.$set(name, newValue);\n                    }\n                  });\n              }\n            };\n          }\n      });\n    }\n\n\n    /**\n     * This is a special jqLite.replaceWith, which can replace items which\n     * have no parents, provided that the containing jqLite collection is provided.\n     *\n     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n     *                               in the root of the tree.\n     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n     *                                  the shell, but replace its DOM node reference.\n     * @param {Node} newNode The new DOM node.\n     */\n    function replaceWith($rootElement, elementsToRemove, newNode) {\n      var firstElementToRemove = elementsToRemove[0],\n          removeCount = elementsToRemove.length,\n          parent = firstElementToRemove.parentNode,\n          i, ii;\n\n      if ($rootElement) {\n        for (i = 0, ii = $rootElement.length; i < ii; i++) {\n          if ($rootElement[i] === firstElementToRemove) {\n            $rootElement[i++] = newNode;\n            for (var j = i, j2 = j + removeCount - 1,\n                     jj = $rootElement.length;\n                 j < jj; j++, j2++) {\n              if (j2 < jj) {\n                $rootElement[j] = $rootElement[j2];\n              } else {\n                delete $rootElement[j];\n              }\n            }\n            $rootElement.length -= removeCount - 1;\n\n            // If the replaced element is also the jQuery .context then replace it\n            // .context is a deprecated jQuery api, so we should set it only when jQuery set it\n            // http://api.jquery.com/context/\n            if ($rootElement.context === firstElementToRemove) {\n              $rootElement.context = newNode;\n            }\n            break;\n          }\n        }\n      }\n\n      if (parent) {\n        parent.replaceChild(newNode, firstElementToRemove);\n      }\n\n      // Append all the `elementsToRemove` to a fragment. This will...\n      // - remove them from the DOM\n      // - allow them to still be traversed with .nextSibling\n      // - allow a single fragment.qSA to fetch all elements being removed\n      var fragment = window.document.createDocumentFragment();\n      for (i = 0; i < removeCount; i++) {\n        fragment.appendChild(elementsToRemove[i]);\n      }\n\n      if (jqLite.hasData(firstElementToRemove)) {\n        // Copy over user data (that includes Angular's $scope etc.). Don't copy private\n        // data here because there's no public interface in jQuery to do that and copying over\n        // event listeners (which is the main use of private data) wouldn't work anyway.\n        jqLite.data(newNode, jqLite.data(firstElementToRemove));\n\n        // Remove $destroy event listeners from `firstElementToRemove`\n        jqLite(firstElementToRemove).off('$destroy');\n      }\n\n      // Cleanup any data/listeners on the elements and children.\n      // This includes invoking the $destroy event on any elements with listeners.\n      jqLite.cleanData(fragment.querySelectorAll('*'));\n\n      // Update the jqLite collection to only contain the `newNode`\n      for (i = 1; i < removeCount; i++) {\n        delete elementsToRemove[i];\n      }\n      elementsToRemove[0] = newNode;\n      elementsToRemove.length = 1;\n    }\n\n\n    function cloneAndAnnotateFn(fn, annotation) {\n      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n    }\n\n\n    function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {\n      try {\n        linkFn(scope, $element, attrs, controllers, transcludeFn);\n      } catch (e) {\n        $exceptionHandler(e, startingTag($element));\n      }\n    }\n\n\n    // Set up $watches for isolate scope and controller bindings.\n    function initializeDirectiveBindings(scope, attrs, destination, bindings, directive) {\n      var removeWatchCollection = [];\n      var initialChanges = {};\n      var changes;\n      forEach(bindings, function initializeBinding(definition, scopeName) {\n        var attrName = definition.attrName,\n        optional = definition.optional,\n        mode = definition.mode, // @, =, <, or &\n        lastValue,\n        parentGet, parentSet, compare, removeWatch;\n\n        switch (mode) {\n\n          case '@':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              destination[scopeName] = attrs[attrName] = undefined;\n            }\n            removeWatch = attrs.$observe(attrName, function(value) {\n              if (isString(value) || isBoolean(value)) {\n                var oldValue = destination[scopeName];\n                recordChanges(scopeName, value, oldValue);\n                destination[scopeName] = value;\n              }\n            });\n            attrs.$$observers[attrName].$$scope = scope;\n            lastValue = attrs[attrName];\n            if (isString(lastValue)) {\n              // If the attribute has been provided then we trigger an interpolation to ensure\n              // the value is there for use in the link fn\n              destination[scopeName] = $interpolate(lastValue)(scope);\n            } else if (isBoolean(lastValue)) {\n              // If the attributes is one of the BOOLEAN_ATTR then Angular will have converted\n              // the value to boolean rather than a string, so we special case this situation\n              destination[scopeName] = lastValue;\n            }\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '=':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            if (parentGet.literal) {\n              compare = equals;\n            } else {\n              // eslint-disable-next-line no-self-compare\n              compare = function simpleCompare(a, b) { return a === b || (a !== a && b !== b); };\n            }\n            parentSet = parentGet.assign || function() {\n              // reset the change, or we will throw this exception on every $digest\n              lastValue = destination[scopeName] = parentGet(scope);\n              throw $compileMinErr('nonassign',\n                  'Expression \\'{0}\\' in attribute \\'{1}\\' used with directive \\'{2}\\' is non-assignable!',\n                  attrs[attrName], attrName, directive.name);\n            };\n            lastValue = destination[scopeName] = parentGet(scope);\n            var parentValueWatch = function parentValueWatch(parentValue) {\n              if (!compare(parentValue, destination[scopeName])) {\n                // we are out of sync and need to copy\n                if (!compare(parentValue, lastValue)) {\n                  // parent changed and it has precedence\n                  destination[scopeName] = parentValue;\n                } else {\n                  // if the parent can be assigned then do so\n                  parentSet(scope, parentValue = destination[scopeName]);\n                }\n              }\n              lastValue = parentValue;\n              return lastValue;\n            };\n            parentValueWatch.$stateful = true;\n            if (definition.collection) {\n              removeWatch = scope.$watchCollection(attrs[attrName], parentValueWatch);\n            } else {\n              removeWatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);\n            }\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '<':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            var deepWatch = parentGet.literal;\n\n            var initialValue = destination[scopeName] = parentGet(scope);\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n\n            removeWatch = scope.$watch(parentGet, function parentValueWatchAction(newValue, oldValue) {\n              if (oldValue === newValue) {\n                if (oldValue === initialValue || (deepWatch && equals(oldValue, initialValue))) {\n                  return;\n                }\n                oldValue = initialValue;\n              }\n              recordChanges(scopeName, newValue, oldValue);\n              destination[scopeName] = newValue;\n            }, deepWatch);\n\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '&':\n            // Don't assign Object.prototype method to scope\n            parentGet = attrs.hasOwnProperty(attrName) ? $parse(attrs[attrName]) : noop;\n\n            // Don't assign noop to destination if expression is not valid\n            if (parentGet === noop && optional) break;\n\n            destination[scopeName] = function(locals) {\n              return parentGet(scope, locals);\n            };\n            break;\n        }\n      });\n\n      function recordChanges(key, currentValue, previousValue) {\n        if (isFunction(destination.$onChanges) && currentValue !== previousValue &&\n            // eslint-disable-next-line no-self-compare\n            (currentValue === currentValue || previousValue === previousValue)) {\n          // If we have not already scheduled the top level onChangesQueue handler then do so now\n          if (!onChangesQueue) {\n            scope.$$postDigest(flushOnChangesQueue);\n            onChangesQueue = [];\n          }\n          // If we have not already queued a trigger of onChanges for this controller then do so now\n          if (!changes) {\n            changes = {};\n            onChangesQueue.push(triggerOnChangesHook);\n          }\n          // If the has been a change on this property already then we need to reuse the previous value\n          if (changes[key]) {\n            previousValue = changes[key].previousValue;\n          }\n          // Store this change\n          changes[key] = new SimpleChange(previousValue, currentValue);\n        }\n      }\n\n      function triggerOnChangesHook() {\n        destination.$onChanges(changes);\n        // Now clear the changes so that we schedule onChanges when more changes arrive\n        changes = undefined;\n      }\n\n      return {\n        initialChanges: initialChanges,\n        removeWatches: removeWatchCollection.length && function removeWatches() {\n          for (var i = 0, ii = removeWatchCollection.length; i < ii; ++i) {\n            removeWatchCollection[i]();\n          }\n        }\n      };\n    }\n  }];\n}\n\nfunction SimpleChange(previous, current) {\n  this.previousValue = previous;\n  this.currentValue = current;\n}\nSimpleChange.prototype.isFirstChange = function() { return this.previousValue === _UNINITIALIZED_VALUE; };\n\n\nvar PREFIX_REGEXP = /^((?:x|data)[:\\-_])/i;\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n  return camelCase(name.replace(PREFIX_REGEXP, ''));\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in Angular:\n *\n * ```\n *    <span ng:bind=\"a\" ng-bind=\"a\" data-ng-bind=\"a\" x-ng-bind=\"a\">\n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n *          property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n  /* angular.Scope */ scope,\n  /* NodeList */ nodeList,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction directiveLinkingFn(\n  /* nodesetLinkingFn */ nodesetLinkingFn,\n  /* angular.Scope */ scope,\n  /* Node */ node,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction tokenDifference(str1, str2) {\n  var values = '',\n      tokens1 = str1.split(/\\s+/),\n      tokens2 = str2.split(/\\s+/);\n\n  outer:\n  for (var i = 0; i < tokens1.length; i++) {\n    var token = tokens1[i];\n    for (var j = 0; j < tokens2.length; j++) {\n      if (token === tokens2[j]) continue outer;\n    }\n    values += (values.length > 0 ? ' ' : '') + token;\n  }\n  return values;\n}\n\nfunction removeComments(jqNodes) {\n  jqNodes = jqLite(jqNodes);\n  var i = jqNodes.length;\n\n  if (i <= 1) {\n    return jqNodes;\n  }\n\n  while (i--) {\n    var node = jqNodes[i];\n    if (node.nodeType === NODE_TYPE_COMMENT ||\n       (node.nodeType === NODE_TYPE_TEXT && node.nodeValue.trim() === '')) {\n         splice.call(jqNodes, i, 1);\n    }\n  }\n  return jqNodes;\n}\n\nvar $controllerMinErr = minErr('$controller');\n\n\nvar CNTRL_REG = /^(\\S+)(\\s+as\\s+([\\w$]+))?$/;\nfunction identifierForController(controller, ident) {\n  if (ident && isString(ident)) return ident;\n  if (isString(controller)) {\n    var match = CNTRL_REG.exec(controller);\n    if (match) return match[3];\n  }\n}\n\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @this\n *\n * @description\n * The {@link ng.$controller $controller service} is used by Angular to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n  var controllers = {},\n      globals = false;\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#has\n   * @param {string} name Controller name to check.\n   */\n  this.has = function(name) {\n    return controllers.hasOwnProperty(name);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#register\n   * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n   *    the names and the values are the constructors.\n   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n   *    annotations in the array notation).\n   */\n  this.register = function(name, constructor) {\n    assertNotHasOwnProperty(name, 'controller');\n    if (isObject(name)) {\n      extend(controllers, name);\n    } else {\n      controllers[name] = constructor;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#allowGlobals\n   *\n   * @deprecated\n   * sinceVersion=\"v1.3.0\"\n   * removeVersion=\"v1.7.0\"\n   * This method of finding controllers has been deprecated.\n   *\n   * @description If called, allows `$controller` to find controller constructors on `window`   *\n   */\n  this.allowGlobals = function() {\n    globals = true;\n  };\n\n\n  this.$get = ['$injector', '$window', function($injector, $window) {\n\n    /**\n     * @ngdoc service\n     * @name $controller\n     * @requires $injector\n     *\n     * @param {Function|string} constructor If called with a function then it's considered to be the\n     *    controller constructor function. Otherwise it's considered to be a string which is used\n     *    to retrieve the controller constructor using the following steps:\n     *\n     *    * check if a controller with given name is registered via `$controllerProvider`\n     *    * check if evaluating the string on the current scope returns a constructor\n     *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n     *      `window` object (not recommended)\n     *\n     *    The string can use the `controller as property` syntax, where the controller instance is published\n     *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n     *    to work correctly.\n     *\n     * @param {Object} locals Injection locals for Controller.\n     * @return {Object} Instance of given controller.\n     *\n     * @description\n     * `$controller` service is responsible for instantiating controllers.\n     *\n     * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n     */\n    return function $controller(expression, locals, later, ident) {\n      // PRIVATE API:\n      //   param `later` --- indicates that the controller's constructor is invoked at a later time.\n      //                     If true, $controller will allocate the object with the correct\n      //                     prototype chain, but will not invoke the controller until a returned\n      //                     callback is invoked.\n      //   param `ident` --- An optional label which overrides the label parsed from the controller\n      //                     expression, if any.\n      var instance, match, constructor, identifier;\n      later = later === true;\n      if (ident && isString(ident)) {\n        identifier = ident;\n      }\n\n      if (isString(expression)) {\n        match = expression.match(CNTRL_REG);\n        if (!match) {\n          throw $controllerMinErr('ctrlfmt',\n            'Badly formed controller string \\'{0}\\'. ' +\n            'Must match `__name__ as __id__` or `__name__`.', expression);\n        }\n        constructor = match[1];\n        identifier = identifier || match[3];\n        expression = controllers.hasOwnProperty(constructor)\n            ? controllers[constructor]\n            : getter(locals.$scope, constructor, true) ||\n                (globals ? getter($window, constructor, true) : undefined);\n\n        if (!expression) {\n          throw $controllerMinErr('ctrlreg',\n            'The controller with the name \\'{0}\\' is not registered.', constructor);\n        }\n\n        assertArgFn(expression, constructor, true);\n      }\n\n      if (later) {\n        // Instantiate controller later:\n        // This machinery is used to create an instance of the object before calling the\n        // controller's constructor itself.\n        //\n        // This allows properties to be added to the controller before the constructor is\n        // invoked. Primarily, this is used for isolate scope bindings in $compile.\n        //\n        // This feature is not intended for use by applications, and is thus not documented\n        // publicly.\n        // Object creation: http://jsperf.com/create-constructor/2\n        var controllerPrototype = (isArray(expression) ?\n          expression[expression.length - 1] : expression).prototype;\n        instance = Object.create(controllerPrototype || null);\n\n        if (identifier) {\n          addIdentifier(locals, identifier, instance, constructor || expression.name);\n        }\n\n        return extend(function $controllerInit() {\n          var result = $injector.invoke(expression, instance, locals, constructor);\n          if (result !== instance && (isObject(result) || isFunction(result))) {\n            instance = result;\n            if (identifier) {\n              // If result changed, re-assign controllerAs value to scope.\n              addIdentifier(locals, identifier, instance, constructor || expression.name);\n            }\n          }\n          return instance;\n        }, {\n          instance: instance,\n          identifier: identifier\n        });\n      }\n\n      instance = $injector.instantiate(expression, locals, constructor);\n\n      if (identifier) {\n        addIdentifier(locals, identifier, instance, constructor || expression.name);\n      }\n\n      return instance;\n    };\n\n    function addIdentifier(locals, identifier, instance, name) {\n      if (!(locals && isObject(locals.$scope))) {\n        throw minErr('$controller')('noscp',\n          'Cannot export controller \\'{0}\\' as \\'{1}\\'! No $scope object provided via `locals`.',\n          name, identifier);\n      }\n\n      locals.$scope[identifier] = instance;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n * @this\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n   <example module=\"documentExample\" name=\"document\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <p>$document title: <b ng-bind=\"title\"></b></p>\n         <p>window.document title: <b ng-bind=\"windowTitle\"></b></p>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('documentExample', [])\n         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {\n           $scope.title = $document[0].title;\n           $scope.windowTitle = angular.element(window.document)[0].title;\n         }]);\n     </file>\n   </example>\n */\nfunction $DocumentProvider() {\n  this.$get = ['$window', function(window) {\n    return jqLite(window.document);\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n * @requires ng.$log\n * @this\n *\n * @description\n * Any uncaught exception in angular expressions is delegated to this service.\n * The default implementation simply delegates to `$log.error` which logs it into\n * the browser console.\n *\n * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by\n * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.\n *\n * ## Example:\n *\n * The example below will overwrite the default `$exceptionHandler` in order to (a) log uncaught\n * errors to the backend for later inspection by the developers and (b) to use `$log.warn()` instead\n * of `$log.error()`.\n *\n * ```js\n *   angular.\n *     module('exceptionOverwrite', []).\n *     factory('$exceptionHandler', ['$log', 'logErrorsToBackend', function($log, logErrorsToBackend) {\n *       return function myExceptionHandler(exception, cause) {\n *         logErrorsToBackend(exception, cause);\n *         $log.warn(exception, cause);\n *       };\n *     }]);\n * ```\n *\n * <hr />\n * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`\n * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}\n * (unless executed during a digest).\n *\n * If you wish, you can manually delegate exceptions, e.g.\n * `try { ... } catch(e) { $exceptionHandler(e); }`\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause Optional information about the context in which\n *       the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n  this.$get = ['$log', function($log) {\n    return function(exception, cause) {\n      $log.error.apply($log, arguments);\n    };\n  }];\n}\n\nvar $$ForceReflowProvider = /** @this */ function() {\n  this.$get = ['$document', function($document) {\n    return function(domNode) {\n      //the line below will force the browser to perform a repaint so\n      //that all the animated elements within the animation frame will\n      //be properly updated and drawn on screen. This is required to\n      //ensure that the preparation animation is properly flushed so that\n      //the active state picks up from there. DO NOT REMOVE THIS LINE.\n      //DO NOT OPTIMIZE THIS LINE. THE MINIFIER WILL REMOVE IT OTHERWISE WHICH\n      //WILL RESULT IN AN UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND\n      //WILL TAKE YEARS AWAY FROM YOUR LIFE.\n      if (domNode) {\n        if (!domNode.nodeType && domNode instanceof jqLite) {\n          domNode = domNode[0];\n        }\n      } else {\n        domNode = $document[0].body;\n      }\n      return domNode.offsetWidth + 1;\n    };\n  }];\n};\n\nvar APPLICATION_JSON = 'application/json';\nvar CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};\nvar JSON_START = /^\\[|^\\{(?!\\{)/;\nvar JSON_ENDS = {\n  '[': /]$/,\n  '{': /}$/\n};\nvar JSON_PROTECTION_PREFIX = /^\\)]\\}',?\\n/;\nvar $httpMinErr = minErr('$http');\nvar $httpMinErrLegacyFn = function(method) {\n  return function() {\n    throw $httpMinErr('legacy', 'The method `{0}` on the promise returned from `$http` has been disabled.', method);\n  };\n};\n\nfunction serializeValue(v) {\n  if (isObject(v)) {\n    return isDate(v) ? v.toISOString() : toJson(v);\n  }\n  return v;\n}\n\n\n/** @this */\nfunction $HttpParamSerializerProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializer\n   * @description\n   *\n   * Default {@link $http `$http`} params serializer that converts objects to strings\n   * according to the following rules:\n   *\n   * * `{'foo': 'bar'}` results in `foo=bar`\n   * * `{'foo': Date.now()}` results in `foo=2015-04-01T09%3A50%3A49.262Z` (`toISOString()` and encoded representation of a Date object)\n   * * `{'foo': ['bar', 'baz']}` results in `foo=bar&foo=baz` (repeated key for each array element)\n   * * `{'foo': {'bar':'baz'}}` results in `foo=%7B%22bar%22%3A%22baz%22%7D` (stringified and encoded representation of an object)\n   *\n   * Note that serializer will sort the request parameters alphabetically.\n   * */\n\n  this.$get = function() {\n    return function ngParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      forEachSorted(params, function(value, key) {\n        if (value === null || isUndefined(value)) return;\n        if (isArray(value)) {\n          forEach(value, function(v) {\n            parts.push(encodeUriQuery(key)  + '=' + encodeUriQuery(serializeValue(v)));\n          });\n        } else {\n          parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(value)));\n        }\n      });\n\n      return parts.join('&');\n    };\n  };\n}\n\n/** @this */\nfunction $HttpParamSerializerJQLikeProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializerJQLike\n   *\n   * @description\n   *\n   * Alternative {@link $http `$http`} params serializer that follows\n   * jQuery's [`param()`](http://api.jquery.com/jquery.param/) method logic.\n   * The serializer will also sort the params alphabetically.\n   *\n   * To use it for serializing `$http` request parameters, set it as the `paramSerializer` property:\n   *\n   * ```js\n   * $http({\n   *   url: myUrl,\n   *   method: 'GET',\n   *   params: myParams,\n   *   paramSerializer: '$httpParamSerializerJQLike'\n   * });\n   * ```\n   *\n   * It is also possible to set it as the default `paramSerializer` in the\n   * {@link $httpProvider#defaults `$httpProvider`}.\n   *\n   * Additionally, you can inject the serializer and use it explicitly, for example to serialize\n   * form data for submission:\n   *\n   * ```js\n   * .controller(function($http, $httpParamSerializerJQLike) {\n   *   //...\n   *\n   *   $http({\n   *     url: myUrl,\n   *     method: 'POST',\n   *     data: $httpParamSerializerJQLike(myData),\n   *     headers: {\n   *       'Content-Type': 'application/x-www-form-urlencoded'\n   *     }\n   *   });\n   *\n   * });\n   * ```\n   *\n   * */\n  this.$get = function() {\n    return function jQueryLikeParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      serialize(params, '', true);\n      return parts.join('&');\n\n      function serialize(toSerialize, prefix, topLevel) {\n        if (toSerialize === null || isUndefined(toSerialize)) return;\n        if (isArray(toSerialize)) {\n          forEach(toSerialize, function(value, index) {\n            serialize(value, prefix + '[' + (isObject(value) ? index : '') + ']');\n          });\n        } else if (isObject(toSerialize) && !isDate(toSerialize)) {\n          forEachSorted(toSerialize, function(value, key) {\n            serialize(value, prefix +\n                (topLevel ? '' : '[') +\n                key +\n                (topLevel ? '' : ']'));\n          });\n        } else {\n          parts.push(encodeUriQuery(prefix) + '=' + encodeUriQuery(serializeValue(toSerialize)));\n        }\n      }\n    };\n  };\n}\n\nfunction defaultHttpResponseTransform(data, headers) {\n  if (isString(data)) {\n    // Strip json vulnerability protection prefix and trim whitespace\n    var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();\n\n    if (tempData) {\n      var contentType = headers('Content-Type');\n      if ((contentType && (contentType.indexOf(APPLICATION_JSON) === 0)) || isJsonLike(tempData)) {\n        data = fromJson(tempData);\n      }\n    }\n  }\n\n  return data;\n}\n\nfunction isJsonLike(str) {\n    var jsonStart = str.match(JSON_START);\n    return jsonStart && JSON_ENDS[jsonStart[0]].test(str);\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n  var parsed = createMap(), i;\n\n  function fillInParsed(key, val) {\n    if (key) {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  }\n\n  if (isString(headers)) {\n    forEach(headers.split('\\n'), function(line) {\n      i = line.indexOf(':');\n      fillInParsed(lowercase(trim(line.substr(0, i))), trim(line.substr(i + 1)));\n    });\n  } else if (isObject(headers)) {\n    forEach(headers, function(headerVal, headerKey) {\n      fillInParsed(lowercase(headerKey), trim(headerVal));\n    });\n  }\n\n  return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n *   - if called with an argument returns a single header value or null\n *   - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n  var headersObj;\n\n  return function(name) {\n    if (!headersObj) headersObj =  parseHeaders(headers);\n\n    if (name) {\n      var value = headersObj[lowercase(name)];\n      if (value === undefined) {\n        value = null;\n      }\n      return value;\n    }\n\n    return headersObj;\n  };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers HTTP headers getter fn.\n * @param {number} status HTTP status code of the response.\n * @param {(Function|Array.<Function>)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, status, fns) {\n  if (isFunction(fns)) {\n    return fns(data, headers, status);\n  }\n\n  forEach(fns, function(fn) {\n    data = fn(data, headers, status);\n  });\n\n  return data;\n}\n\n\nfunction isSuccess(status) {\n  return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @this\n *\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n * */\nfunction $HttpProvider() {\n  /**\n   * @ngdoc property\n   * @name $httpProvider#defaults\n   * @description\n   *\n   * Object containing default values for all {@link ng.$http $http} requests.\n   *\n   * - **`defaults.cache`** - {boolean|Object} - A boolean value or object created with\n   * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of HTTP responses\n   * by default. See {@link $http#caching $http Caching} for more information.\n   *\n   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n   * Defaults value is `'XSRF-TOKEN'`.\n   *\n   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n   *\n   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n   * setting default headers.\n   *     - **`defaults.headers.common`**\n   *     - **`defaults.headers.post`**\n   *     - **`defaults.headers.put`**\n   *     - **`defaults.headers.patch`**\n   *\n   *\n   * - **`defaults.paramSerializer`** - `{string|function(Object<string,string>):string}` - A function\n   *  used to the prepare string representation of request parameters (specified as an object).\n   *  If specified as string, it is interpreted as a function registered with the {@link auto.$injector $injector}.\n   *  Defaults to {@link ng.$httpParamSerializer $httpParamSerializer}.\n   *\n   **/\n  var defaults = this.defaults = {\n    // transform incoming response data\n    transformResponse: [defaultHttpResponseTransform],\n\n    // transform outgoing request data\n    transformRequest: [function(d) {\n      return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;\n    }],\n\n    // default headers\n    headers: {\n      common: {\n        'Accept': 'application/json, text/plain, */*'\n      },\n      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n    },\n\n    xsrfCookieName: 'XSRF-TOKEN',\n    xsrfHeaderName: 'X-XSRF-TOKEN',\n\n    paramSerializer: '$httpParamSerializer'\n  };\n\n  var useApplyAsync = false;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useApplyAsync\n   * @description\n   *\n   * Configure $http service to combine processing of multiple http responses received at around\n   * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in\n   * significant performance improvement for bigger applications that make many HTTP requests\n   * concurrently (common during application bootstrap).\n   *\n   * Defaults to false. If no value is specified, returns the current configured value.\n   *\n   * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred\n   *    \"apply\" on the next tick, giving time for subsequent requests in a roughly ~10ms window\n   *    to load and share the same digest cycle.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   **/\n  this.useApplyAsync = function(value) {\n    if (isDefined(value)) {\n      useApplyAsync = !!value;\n      return this;\n    }\n    return useApplyAsync;\n  };\n\n  var useLegacyPromise = true;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useLegacyPromiseExtensions\n   * @description\n   *\n   * @deprecated\n   * sinceVersion=\"v1.4.4\"\n   * removeVersion=\"v1.6.0\"\n   * This method will be removed in v1.6.0 along with the legacy promise methods.\n   *\n   * Configure `$http` service to return promises without the shorthand methods `success` and `error`.\n   * This should be used to make sure that applications work without these methods.\n   *\n   * Defaults to true. If no value is specified, returns the current configured value.\n   *\n   * @param {boolean=} value If true, `$http` will return a promise with the deprecated legacy `success` and `error` methods.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   **/\n  this.useLegacyPromiseExtensions = function(value) {\n    if (isDefined(value)) {\n      useLegacyPromise = !!value;\n      return this;\n    }\n    return useLegacyPromise;\n  };\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#interceptors\n   * @description\n   *\n   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n   * pre-processing of request or postprocessing of responses.\n   *\n   * These service factories are ordered by request, i.e. they are applied in the same order as the\n   * array, on request, but reverse order, on response.\n   *\n   * {@link ng.$http#interceptors Interceptors detailed info}\n   **/\n  var interceptorFactories = this.interceptors = [];\n\n  this.$get = ['$httpBackend', '$$cookieReader', '$cacheFactory', '$rootScope', '$q', '$injector',\n      function($httpBackend, $$cookieReader, $cacheFactory, $rootScope, $q, $injector) {\n\n    var defaultCache = $cacheFactory('$http');\n\n    /**\n     * Make sure that default param serializer is exposed as a function\n     */\n    defaults.paramSerializer = isString(defaults.paramSerializer) ?\n      $injector.get(defaults.paramSerializer) : defaults.paramSerializer;\n\n    /**\n     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n     * The reversal is needed so that we can build up the interception chain around the\n     * server request.\n     */\n    var reversedInterceptors = [];\n\n    forEach(interceptorFactories, function(interceptorFactory) {\n      reversedInterceptors.unshift(isString(interceptorFactory)\n          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n    });\n\n    /**\n     * @ngdoc service\n     * @kind function\n     * @name $http\n     * @requires ng.$httpBackend\n     * @requires $cacheFactory\n     * @requires $rootScope\n     * @requires $q\n     * @requires $injector\n     *\n     * @description\n     * The `$http` service is a core Angular service that facilitates communication with the remote\n     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n     *\n     * For unit testing applications that use `$http` service, see\n     * {@link ngMock.$httpBackend $httpBackend mock}.\n     *\n     * For a higher level of abstraction, please check out the {@link ngResource.$resource\n     * $resource} service.\n     *\n     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n     * it is important to familiarize yourself with these APIs and the guarantees they provide.\n     *\n     *\n     * ## General usage\n     * The `$http` service is a function which takes a single argument — a {@link $http#usage configuration object} —\n     * that is used to generate an HTTP request and returns  a {@link ng.$q promise}.\n     *\n     * ```js\n     *   // Simple GET request example:\n     *   $http({\n     *     method: 'GET',\n     *     url: '/someUrl'\n     *   }).then(function successCallback(response) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }, function errorCallback(response) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     * The response object has these properties:\n     *\n     *   - **data** – `{string|Object}` – The response body transformed with the transform\n     *     functions.\n     *   - **status** – `{number}` – HTTP status code of the response.\n     *   - **headers** – `{function([headerName])}` – Header getter function.\n     *   - **config** – `{Object}` – The configuration object that was used to generate the request.\n     *   - **statusText** – `{string}` – HTTP status text of the response.\n     *\n     * A response status code between 200 and 299 is considered a success status and will result in\n     * the success callback being called. Any response status code outside of that range is\n     * considered an error status and will result in the error callback being called.\n     * Also, status codes less than -1 are normalized to zero. -1 usually means the request was\n     * aborted, e.g. using a `config.timeout`.\n     * Note that if the response is a redirect, XMLHttpRequest will transparently follow it, meaning\n     * that the outcome (success or error) will be determined by the final response status code.\n     *\n     *\n     * ## Shortcut methods\n     *\n     * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n     * request data must be passed in for POST/PUT requests. An optional config can be passed as the\n     * last argument.\n     *\n     * ```js\n     *   $http.get('/someUrl', config).then(successCallback, errorCallback);\n     *   $http.post('/someUrl', data, config).then(successCallback, errorCallback);\n     * ```\n     *\n     * Complete list of shortcut methods:\n     *\n     * - {@link ng.$http#get $http.get}\n     * - {@link ng.$http#head $http.head}\n     * - {@link ng.$http#post $http.post}\n     * - {@link ng.$http#put $http.put}\n     * - {@link ng.$http#delete $http.delete}\n     * - {@link ng.$http#jsonp $http.jsonp}\n     * - {@link ng.$http#patch $http.patch}\n     *\n     *\n     * ## Writing Unit Tests that use $http\n     * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n     * request using trained responses.\n     *\n     * ```\n     * $httpBackend.expectGET(...);\n     * $http.get(...);\n     * $httpBackend.flush();\n     * ```\n     *\n     * ## Deprecation Notice\n     * <div class=\"alert alert-danger\">\n     *   The `$http` legacy promise methods `success` and `error` have been deprecated and will be\n     *   removed in v1.6.0.\n     *   Use the standard `then` method instead.\n     *   If {@link $httpProvider#useLegacyPromiseExtensions `$httpProvider.useLegacyPromiseExtensions`} is set to\n     *   `false` then these methods will throw {@link $http:legacy `$http/legacy`} error.\n     * </div>\n     *\n     * ## Setting HTTP Headers\n     *\n     * The $http service will automatically add certain HTTP headers to all requests. These defaults\n     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n     * object, which currently contains this default configuration:\n     *\n     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n     *   - <code>Accept: application/json, text/plain, \\*&#65279;/&#65279;\\*</code>\n     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n     *   - `Content-Type: application/json`\n     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n     *   - `Content-Type: application/json`\n     *\n     * To add or overwrite these defaults, simply add or remove a property from these configuration\n     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n     * with the lowercased HTTP method name as the key, e.g.\n     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }`.\n     *\n     * The defaults can also be set at runtime via the `$http.defaults` object in the same\n     * fashion. For example:\n     *\n     * ```\n     * module.run(function($http) {\n     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w';\n     * });\n     * ```\n     *\n     * In addition, you can supply a `headers` property in the config object passed when\n     * calling `$http(config)`, which overrides the defaults without changing them globally.\n     *\n     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n     * Use the `headers` property, setting the desired header to `undefined`. For example:\n     *\n     * ```js\n     * var req = {\n     *  method: 'POST',\n     *  url: 'http://example.com',\n     *  headers: {\n     *    'Content-Type': undefined\n     *  },\n     *  data: { test: 'test' }\n     * }\n     *\n     * $http(req).then(function(){...}, function(){...});\n     * ```\n     *\n     * ## Transforming Requests and Responses\n     *\n     * Both requests and responses can be transformed using transformation functions: `transformRequest`\n     * and `transformResponse`. These properties can be a single function that returns\n     * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,\n     * which allows you to `push` or `unshift` a new transformation function into the transformation chain.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note:** Angular does not make a copy of the `data` parameter before it is passed into the `transformRequest` pipeline.\n     * That means changes to the properties of `data` are not local to the transform function (since Javascript passes objects by reference).\n     * For example, when calling `$http.get(url, $scope.myObject)`, modifications to the object's properties in a transformRequest\n     * function will be reflected on the scope and in any templates where the object is data-bound.\n     * To prevent this, transform functions should have no side-effects.\n     * If you need to modify properties, it is recommended to make a copy of the data, or create new object to return.\n     * </div>\n     *\n     * ### Default Transformations\n     *\n     * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and\n     * `defaults.transformResponse` properties. If a request does not provide its own transformations\n     * then these will be applied.\n     *\n     * You can augment or replace the default transformations by modifying these properties by adding to or\n     * replacing the array.\n     *\n     * Angular provides the following default transformations:\n     *\n     * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`):\n     *\n     * - If the `data` property of the request configuration object contains an object, serialize it\n     *   into JSON format.\n     *\n     * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`):\n     *\n     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).\n     *  - If JSON response is detected, deserialize it using a JSON parser.\n     *\n     *\n     * ### Overriding the Default Transformations Per Request\n     *\n     * If you wish to override the request/response transformations only for a single request then provide\n     * `transformRequest` and/or `transformResponse` properties on the configuration object passed\n     * into `$http`.\n     *\n     * Note that if you provide these properties on the config object the default transformations will be\n     * overwritten. If you wish to augment the default transformations then you must include them in your\n     * local transformation array.\n     *\n     * The following code demonstrates adding a new response transformation to be run after the default response\n     * transformations have been run.\n     *\n     * ```js\n     * function appendTransform(defaults, transform) {\n     *\n     *   // We can't guarantee that the default transformation is an array\n     *   defaults = angular.isArray(defaults) ? defaults : [defaults];\n     *\n     *   // Append the new transformation to the defaults\n     *   return defaults.concat(transform);\n     * }\n     *\n     * $http({\n     *   url: '...',\n     *   method: 'GET',\n     *   transformResponse: appendTransform($http.defaults.transformResponse, function(value) {\n     *     return doTransform(value);\n     *   })\n     * });\n     * ```\n     *\n     *\n     * ## Caching\n     *\n     * {@link ng.$http `$http`} responses are not cached by default. To enable caching, you must\n     * set the config.cache value or the default cache value to TRUE or to a cache object (created\n     * with {@link ng.$cacheFactory `$cacheFactory`}). If defined, the value of config.cache takes\n     * precedence over the default cache value.\n     *\n     * In order to:\n     *   * cache all responses - set the default cache value to TRUE or to a cache object\n     *   * cache a specific response - set config.cache value to TRUE or to a cache object\n     *\n     * If caching is enabled, but neither the default cache nor config.cache are set to a cache object,\n     * then the default `$cacheFactory(\"$http\")` object is used.\n     *\n     * The default cache value can be set by updating the\n     * {@link ng.$http#defaults `$http.defaults.cache`} property or the\n     * {@link $httpProvider#defaults `$httpProvider.defaults.cache`} property.\n     *\n     * When caching is enabled, {@link ng.$http `$http`} stores the response from the server using\n     * the relevant cache object. The next time the same request is made, the response is returned\n     * from the cache without sending a request to the server.\n     *\n     * Take note that:\n     *\n     *   * Only GET and JSONP requests are cached.\n     *   * The cache key is the request URL including search parameters; headers are not considered.\n     *   * Cached responses are returned asynchronously, in the same way as responses from the server.\n     *   * If multiple identical requests are made using the same cache, which is not yet populated,\n     *     one request will be made to the server and remaining requests will return the same response.\n     *   * A cache-control header on the response does not affect if or how responses are cached.\n     *\n     *\n     * ## Interceptors\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication, or any kind of synchronous or\n     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n     * able to intercept requests before they are handed to the server and\n     * responses before they are handed over to the application code that\n     * initiated these requests. The interceptors leverage the {@link ng.$q\n     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n     *\n     * The interceptors are service factories that are registered with the `$httpProvider` by\n     * adding them to the `$httpProvider.interceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor.\n     *\n     * There are two kinds of interceptors (and two kinds of rejection interceptors):\n     *\n     *   * `request`: interceptors get called with a http {@link $http#usage config} object. The function is free to\n     *     modify the `config` object or create a new one. The function needs to return the `config`\n     *     object directly, or a promise containing the `config` or a new `config` object.\n     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *   * `response`: interceptors get called with http `response` object. The function is free to\n     *     modify the `response` object or create a new one. The function needs to return the `response`\n     *     object directly, or as a promise containing the `response` or a new `response` object.\n     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return {\n     *       // optional method\n     *       'request': function(config) {\n     *         // do something on success\n     *         return config;\n     *       },\n     *\n     *       // optional method\n     *      'requestError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       },\n     *\n     *\n     *\n     *       // optional method\n     *       'response': function(response) {\n     *         // do something on success\n     *         return response;\n     *       },\n     *\n     *       // optional method\n     *      'responseError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       }\n     *     };\n     *   });\n     *\n     *   $httpProvider.interceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // alternatively, register the interceptor via an anonymous factory\n     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n     *     return {\n     *      'request': function(config) {\n     *          // same as above\n     *       },\n     *\n     *       'response': function(response) {\n     *          // same as above\n     *       }\n     *     };\n     *   });\n     * ```\n     *\n     * ## Security Considerations\n     *\n     * When designing web applications, consider security threats from:\n     *\n     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n     *\n     * Both server and the client must cooperate in order to eliminate these threats. Angular comes\n     * pre-configured with strategies that address these issues, but for this to work backend server\n     * cooperation is required.\n     *\n     * ### JSON Vulnerability Protection\n     *\n     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * allows third party website to turn your JSON resource URL into\n     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n     * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n     * Angular will automatically strip the prefix before processing it as JSON.\n     *\n     * For example if your server needs to return:\n     * ```js\n     * ['one','two']\n     * ```\n     *\n     * which is vulnerable to attack, your server can return:\n     * ```js\n     * )]}',\n     * ['one','two']\n     * ```\n     *\n     * Angular will strip the prefix, before processing the JSON.\n     *\n     *\n     * ### Cross Site Request Forgery (XSRF) Protection\n     *\n     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is an attack technique by\n     * which the attacker can trick an authenticated user into unknowingly executing actions on your\n     * website. Angular provides a mechanism to counter XSRF. When performing XHR requests, the\n     * $http service reads a token from a cookie (by default, `XSRF-TOKEN`) and sets it as an HTTP\n     * header (`X-XSRF-TOKEN`). Since only JavaScript that runs on your domain could read the\n     * cookie, your server can be assured that the XHR came from JavaScript running on your domain.\n     * The header will not be set for cross-domain requests.\n     *\n     * To take advantage of this, your server needs to set a token in a JavaScript readable session\n     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n     * server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure\n     * that only JavaScript running on your domain could have sent the request. The token must be\n     * unique for each user and must be verifiable by the server (to prevent the JavaScript from\n     * making up its own tokens). We recommend that the token is a digest of your site's\n     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)\n     * for added security.\n     *\n     * The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName\n     * properties of either $httpProvider.defaults at config-time, $http.defaults at run-time,\n     * or the per-request config object.\n     *\n     * In order to prevent collisions in environments where multiple Angular apps share the\n     * same domain or subdomain, we recommend that each application uses unique cookie name.\n     *\n     * @param {object} config Object describing the request to be made and how it should be\n     *    processed. The object has following properties:\n     *\n     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n     *    - **url** – `{string}` – Absolute or relative URL of the resource that is being requested.\n     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be serialized\n     *      with the `paramSerializer` and appended as GET parameters.\n     *    - **data** – `{string|Object}` – Data to be sent as the request message data.\n     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing\n     *      HTTP headers to send to the server. If the return value of a function is null, the\n     *      header will not be sent. Functions accept a config object as an argument.\n     *    - **eventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest object.\n     *      To bind events to the XMLHttpRequest upload object, use `uploadEventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **uploadEventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest upload\n     *      object. To bind events to the XMLHttpRequest object, use `eventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n     *    - **transformRequest** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      request body and headers and returns its transformed (typically serialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **transformResponse** –\n     *      `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      response body, headers and status and returns its transformed (typically deserialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **paramSerializer** - `{string|function(Object<string,string>):string}` - A function used to\n     *      prepare the string representation of request parameters (specified as an object).\n     *      If specified as string, it is interpreted as function registered with the\n     *      {@link $injector $injector}, which means you can create your own serializer\n     *      by registering it as a {@link auto.$provide#service service}.\n     *      The default serializer is the {@link $httpParamSerializer $httpParamSerializer};\n     *      alternatively, you can use the {@link $httpParamSerializerJQLike $httpParamSerializerJQLike}\n     *    - **cache** – `{boolean|Object}` – A boolean value or object created with\n     *      {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response.\n     *      See {@link $http#caching $http Caching} for more information.\n     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n     *      that should abort the request when resolved.\n     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n     *      for more information.\n     *    - **responseType** - `{string}` - see\n     *      [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#xmlhttprequest-responsetype).\n     *\n     * @returns {HttpPromise} Returns a {@link ng.$q `Promise}` that will be resolved to a response object\n     *                        when the request succeeds or fails.\n     *\n     *\n     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending\n     *   requests. This is primarily meant to be used for debugging purposes.\n     *\n     *\n     * @example\n<example module=\"httpExample\" name=\"http-service\">\n<file name=\"index.html\">\n  <div ng-controller=\"FetchController\">\n    <select ng-model=\"method\" aria-label=\"Request method\">\n      <option>GET</option>\n      <option>JSONP</option>\n    </select>\n    <input type=\"text\" ng-model=\"url\" size=\"80\" aria-label=\"URL\" />\n    <button id=\"fetchbtn\" ng-click=\"fetch()\">fetch</button><br>\n    <button id=\"samplegetbtn\" ng-click=\"updateModel('GET', 'http-hello.html')\">Sample GET</button>\n    <button id=\"samplejsonpbtn\"\n      ng-click=\"updateModel('JSONP',\n                    'https://angularjs.org/greet.php?callback=JSON_CALLBACK&name=Super%20Hero')\">\n      Sample JSONP\n    </button>\n    <button id=\"invalidjsonpbtn\"\n      ng-click=\"updateModel('JSONP', 'https://angularjs.org/doesntexist&callback=JSON_CALLBACK')\">\n        Invalid JSONP\n      </button>\n    <pre>http status code: {{status}}</pre>\n    <pre>http response data: {{data}}</pre>\n  </div>\n</file>\n<file name=\"script.js\">\n  angular.module('httpExample', [])\n    .controller('FetchController', ['$scope', '$http', '$templateCache',\n      function($scope, $http, $templateCache) {\n        $scope.method = 'GET';\n        $scope.url = 'http-hello.html';\n\n        $scope.fetch = function() {\n          $scope.code = null;\n          $scope.response = null;\n\n          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).\n            then(function(response) {\n              $scope.status = response.status;\n              $scope.data = response.data;\n            }, function(response) {\n              $scope.data = response.data || 'Request failed';\n              $scope.status = response.status;\n          });\n        };\n\n        $scope.updateModel = function(method, url) {\n          $scope.method = method;\n          $scope.url = url;\n        };\n      }]);\n</file>\n<file name=\"http-hello.html\">\n  Hello, $http!\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  var status = element(by.binding('status'));\n  var data = element(by.binding('data'));\n  var fetchBtn = element(by.id('fetchbtn'));\n  var sampleGetBtn = element(by.id('samplegetbtn'));\n  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));\n\n  it('should make an xhr GET request', function() {\n    sampleGetBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('200');\n    expect(data.getText()).toMatch(/Hello, \\$http!/);\n  });\n\n// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185\n// it('should make a JSONP request to angularjs.org', function() {\n//   var sampleJsonpBtn = element(by.id('samplejsonpbtn'));\n//   sampleJsonpBtn.click();\n//   fetchBtn.click();\n//   expect(status.getText()).toMatch('200');\n//   expect(data.getText()).toMatch(/Super Hero!/);\n// });\n\n  it('should make JSONP request to invalid URL and invoke the error handler',\n      function() {\n    invalidJsonpBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('0');\n    expect(data.getText()).toMatch('Request failed');\n  });\n</file>\n</example>\n     */\n    function $http(requestConfig) {\n\n      if (!isObject(requestConfig)) {\n        throw minErr('$http')('badreq', 'Http request configuration must be an object.  Received: {0}', requestConfig);\n      }\n\n      if (!isString(requestConfig.url)) {\n        throw minErr('$http')('badreq', 'Http request configuration url must be a string.  Received: {0}', requestConfig.url);\n      }\n\n      var config = extend({\n        method: 'get',\n        transformRequest: defaults.transformRequest,\n        transformResponse: defaults.transformResponse,\n        paramSerializer: defaults.paramSerializer\n      }, requestConfig);\n\n      config.headers = mergeHeaders(requestConfig);\n      config.method = uppercase(config.method);\n      config.paramSerializer = isString(config.paramSerializer) ?\n          $injector.get(config.paramSerializer) : config.paramSerializer;\n\n      var requestInterceptors = [];\n      var responseInterceptors = [];\n      var promise = $q.when(config);\n\n      // apply interceptors\n      forEach(reversedInterceptors, function(interceptor) {\n        if (interceptor.request || interceptor.requestError) {\n          requestInterceptors.unshift(interceptor.request, interceptor.requestError);\n        }\n        if (interceptor.response || interceptor.responseError) {\n          responseInterceptors.push(interceptor.response, interceptor.responseError);\n        }\n      });\n\n      promise = chainInterceptors(promise, requestInterceptors);\n      promise = promise.then(serverRequest);\n      promise = chainInterceptors(promise, responseInterceptors);\n\n      if (useLegacyPromise) {\n        promise.success = function(fn) {\n          assertArgFn(fn, 'fn');\n\n          promise.then(function(response) {\n            fn(response.data, response.status, response.headers, config);\n          });\n          return promise;\n        };\n\n        promise.error = function(fn) {\n          assertArgFn(fn, 'fn');\n\n          promise.then(null, function(response) {\n            fn(response.data, response.status, response.headers, config);\n          });\n          return promise;\n        };\n      } else {\n        promise.success = $httpMinErrLegacyFn('success');\n        promise.error = $httpMinErrLegacyFn('error');\n      }\n\n      return promise;\n\n\n      function chainInterceptors(promise, interceptors) {\n        for (var i = 0, ii = interceptors.length; i < ii;) {\n          var thenFn = interceptors[i++];\n          var rejectFn = interceptors[i++];\n\n          promise = promise.then(thenFn, rejectFn);\n        }\n\n        interceptors.length = 0;\n\n        return promise;\n      }\n\n      function executeHeaderFns(headers, config) {\n        var headerContent, processedHeaders = {};\n\n        forEach(headers, function(headerFn, header) {\n          if (isFunction(headerFn)) {\n            headerContent = headerFn(config);\n            if (headerContent != null) {\n              processedHeaders[header] = headerContent;\n            }\n          } else {\n            processedHeaders[header] = headerFn;\n          }\n        });\n\n        return processedHeaders;\n      }\n\n      function mergeHeaders(config) {\n        var defHeaders = defaults.headers,\n            reqHeaders = extend({}, config.headers),\n            defHeaderName, lowercaseDefHeaderName, reqHeaderName;\n\n        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);\n\n        // using for-in instead of forEach to avoid unnecessary iteration after header has been found\n        defaultHeadersIteration:\n        for (defHeaderName in defHeaders) {\n          lowercaseDefHeaderName = lowercase(defHeaderName);\n\n          for (reqHeaderName in reqHeaders) {\n            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {\n              continue defaultHeadersIteration;\n            }\n          }\n\n          reqHeaders[defHeaderName] = defHeaders[defHeaderName];\n        }\n\n        // execute if header value is a function for merged headers\n        return executeHeaderFns(reqHeaders, shallowCopy(config));\n      }\n\n      function serverRequest(config) {\n        var headers = config.headers;\n        var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest);\n\n        // strip content-type if data is undefined\n        if (isUndefined(reqData)) {\n          forEach(headers, function(value, header) {\n            if (lowercase(header) === 'content-type') {\n              delete headers[header];\n            }\n          });\n        }\n\n        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {\n          config.withCredentials = defaults.withCredentials;\n        }\n\n        // send request\n        return sendReq(config, reqData).then(transformResponse, transformResponse);\n      }\n\n      function transformResponse(response) {\n        // make a copy since the response must be cacheable\n        var resp = extend({}, response);\n        resp.data = transformData(response.data, response.headers, response.status,\n                                  config.transformResponse);\n        return (isSuccess(response.status))\n          ? resp\n          : $q.reject(resp);\n      }\n    }\n\n    $http.pendingRequests = [];\n\n    /**\n     * @ngdoc method\n     * @name $http#get\n     *\n     * @description\n     * Shortcut method to perform `GET` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#delete\n     *\n     * @description\n     * Shortcut method to perform `DELETE` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#head\n     *\n     * @description\n     * Shortcut method to perform `HEAD` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#jsonp\n     *\n     * @description\n     * Shortcut method to perform `JSONP` request.\n     * If you would like to customize where and how the callbacks are stored then try overriding\n     * or decorating the {@link $jsonpCallbacks} service.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request.\n     *                     The name of the callback should be the string `JSON_CALLBACK`.\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n    createShortMethods('get', 'delete', 'head', 'jsonp');\n\n    /**\n     * @ngdoc method\n     * @name $http#post\n     *\n     * @description\n     * Shortcut method to perform `POST` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#put\n     *\n     * @description\n     * Shortcut method to perform `PUT` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object\n     * @returns {HttpPromise} Future object\n     */\n\n     /**\n      * @ngdoc method\n      * @name $http#patch\n      *\n      * @description\n      * Shortcut method to perform `PATCH` request.\n      *\n      * @param {string} url Relative or absolute URL specifying the destination of the request\n      * @param {*} data Request content\n      * @param {Object=} config Optional configuration object\n      * @returns {HttpPromise} Future object\n      */\n    createShortMethodsWithData('post', 'put', 'patch');\n\n        /**\n         * @ngdoc property\n         * @name $http#defaults\n         *\n         * @description\n         * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of\n         * default headers, withCredentials as well as request and response transformations.\n         *\n         * See \"Setting HTTP Headers\" and \"Transforming Requests and Responses\" sections above.\n         */\n    $http.defaults = defaults;\n\n\n    return $http;\n\n\n    function createShortMethods(names) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url\n          }));\n        };\n      });\n    }\n\n\n    function createShortMethodsWithData(name) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, data, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url,\n            data: data\n          }));\n        };\n      });\n    }\n\n\n    /**\n     * Makes the request.\n     *\n     * !!! ACCESSES CLOSURE VARS:\n     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests\n     */\n    function sendReq(config, reqData) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          cache,\n          cachedResp,\n          reqHeaders = config.headers,\n          url = buildUrl(config.url, config.paramSerializer(config.params));\n\n      $http.pendingRequests.push(config);\n      promise.then(removePendingReq, removePendingReq);\n\n\n      if ((config.cache || defaults.cache) && config.cache !== false &&\n          (config.method === 'GET' || config.method === 'JSONP')) {\n        cache = isObject(config.cache) ? config.cache\n              : isObject(defaults.cache) ? defaults.cache\n              : defaultCache;\n      }\n\n      if (cache) {\n        cachedResp = cache.get(url);\n        if (isDefined(cachedResp)) {\n          if (isPromiseLike(cachedResp)) {\n            // cached request has already been sent, but there is no response yet\n            cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult);\n          } else {\n            // serving from cache\n            if (isArray(cachedResp)) {\n              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3]);\n            } else {\n              resolvePromise(cachedResp, 200, {}, 'OK');\n            }\n          }\n        } else {\n          // put the promise for the non-transformed response into cache as a placeholder\n          cache.put(url, promise);\n        }\n      }\n\n\n      // if we won't have the response in cache, set the xsrf headers and\n      // send the request to the backend\n      if (isUndefined(cachedResp)) {\n        var xsrfValue = urlIsSameOrigin(config.url)\n            ? $$cookieReader()[config.xsrfCookieName || defaults.xsrfCookieName]\n            : undefined;\n        if (xsrfValue) {\n          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;\n        }\n\n        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,\n            config.withCredentials, config.responseType,\n            createApplyHandlers(config.eventHandlers),\n            createApplyHandlers(config.uploadEventHandlers));\n      }\n\n      return promise;\n\n      function createApplyHandlers(eventHandlers) {\n        if (eventHandlers) {\n          var applyHandlers = {};\n          forEach(eventHandlers, function(eventHandler, key) {\n            applyHandlers[key] = function(event) {\n              if (useApplyAsync) {\n                $rootScope.$applyAsync(callEventHandler);\n              } else if ($rootScope.$$phase) {\n                callEventHandler();\n              } else {\n                $rootScope.$apply(callEventHandler);\n              }\n\n              function callEventHandler() {\n                eventHandler(event);\n              }\n            };\n          });\n          return applyHandlers;\n        }\n      }\n\n\n      /**\n       * Callback registered to $httpBackend():\n       *  - caches the response if desired\n       *  - resolves the raw $http promise\n       *  - calls $apply\n       */\n      function done(status, response, headersString, statusText) {\n        if (cache) {\n          if (isSuccess(status)) {\n            cache.put(url, [status, response, parseHeaders(headersString), statusText]);\n          } else {\n            // remove promise from the cache\n            cache.remove(url);\n          }\n        }\n\n        function resolveHttpPromise() {\n          resolvePromise(response, status, headersString, statusText);\n        }\n\n        if (useApplyAsync) {\n          $rootScope.$applyAsync(resolveHttpPromise);\n        } else {\n          resolveHttpPromise();\n          if (!$rootScope.$$phase) $rootScope.$apply();\n        }\n      }\n\n\n      /**\n       * Resolves the raw $http promise.\n       */\n      function resolvePromise(response, status, headers, statusText) {\n        //status: HTTP response status code, 0, -1 (aborted by timeout / promise)\n        status = status >= -1 ? status : 0;\n\n        (isSuccess(status) ? deferred.resolve : deferred.reject)({\n          data: response,\n          status: status,\n          headers: headersGetter(headers),\n          config: config,\n          statusText: statusText\n        });\n      }\n\n      function resolvePromiseWithResult(result) {\n        resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText);\n      }\n\n      function removePendingReq() {\n        var idx = $http.pendingRequests.indexOf(config);\n        if (idx !== -1) $http.pendingRequests.splice(idx, 1);\n      }\n    }\n\n\n    function buildUrl(url, serializedParams) {\n      if (serializedParams.length > 0) {\n        url += ((url.indexOf('?') === -1) ? '?' : '&') + serializedParams;\n      }\n      return url;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $xhrFactory\n * @this\n *\n * @description\n * Factory function used to create XMLHttpRequest objects.\n *\n * Replace or decorate this service to create your own custom XMLHttpRequest objects.\n *\n * ```\n * angular.module('myApp', [])\n * .factory('$xhrFactory', function() {\n *   return function createXhr(method, url) {\n *     return new window.XMLHttpRequest({mozSystem: true});\n *   };\n * });\n * ```\n *\n * @param {string} method HTTP method of the request (GET, POST, PUT, ..)\n * @param {string} url URL of the request.\n */\nfunction $xhrFactoryProvider() {\n  this.$get = function() {\n    return function createXhr() {\n      return new window.XMLHttpRequest();\n    };\n  };\n}\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @requires $jsonpCallbacks\n * @requires $document\n * @requires $xhrFactory\n * @this\n *\n * @description\n * HTTP backend used by the {@link ng.$http service} that delegates to\n * XMLHttpRequest object or JSONP and deals with browser incompatibilities.\n *\n * You should never need to use this service directly, instead use the higher-level abstractions:\n * {@link ng.$http $http} or {@link ngResource.$resource $resource}.\n *\n * During testing this implementation is swapped with {@link ngMock.$httpBackend mock\n * $httpBackend} which can be trained with responses.\n */\nfunction $HttpBackendProvider() {\n  this.$get = ['$browser', '$jsonpCallbacks', '$document', '$xhrFactory', function($browser, $jsonpCallbacks, $document, $xhrFactory) {\n    return createHttpBackend($browser, $xhrFactory, $browser.defer, $jsonpCallbacks, $document[0]);\n  }];\n}\n\nfunction createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {\n  // TODO(vojta): fix the signature\n  return function(method, url, post, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {\n    $browser.$$incOutstandingRequestCount();\n    url = url || $browser.url();\n\n    if (lowercase(method) === 'jsonp') {\n      var callbackPath = callbacks.createCallback(url);\n      var jsonpDone = jsonpReq(url, callbackPath, function(status, text) {\n        // jsonpReq only ever sets status to 200 (OK), 404 (ERROR) or -1 (WAITING)\n        var response = (status === 200) && callbacks.getResponse(callbackPath);\n        completeRequest(callback, status, response, '', text);\n        callbacks.removeCallback(callbackPath);\n      });\n    } else {\n\n      var xhr = createXhr(method, url);\n\n      xhr.open(method, url, true);\n      forEach(headers, function(value, key) {\n        if (isDefined(value)) {\n            xhr.setRequestHeader(key, value);\n        }\n      });\n\n      xhr.onload = function requestLoaded() {\n        var statusText = xhr.statusText || '';\n\n        // responseText is the old-school way of retrieving response (supported by IE9)\n        // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)\n        var response = ('response' in xhr) ? xhr.response : xhr.responseText;\n\n        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)\n        var status = xhr.status === 1223 ? 204 : xhr.status;\n\n        // fix status code when it is 0 (0 status is undocumented).\n        // Occurs when accessing file resources or on Android 4.1 stock browser\n        // while retrieving files from application cache.\n        if (status === 0) {\n          status = response ? 200 : urlResolve(url).protocol === 'file' ? 404 : 0;\n        }\n\n        completeRequest(callback,\n            status,\n            response,\n            xhr.getAllResponseHeaders(),\n            statusText);\n      };\n\n      var requestError = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '');\n      };\n\n      xhr.onerror = requestError;\n      xhr.onabort = requestError;\n      xhr.ontimeout = requestError;\n\n      forEach(eventHandlers, function(value, key) {\n          xhr.addEventListener(key, value);\n      });\n\n      forEach(uploadEventHandlers, function(value, key) {\n        xhr.upload.addEventListener(key, value);\n      });\n\n      if (withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      if (responseType) {\n        try {\n          xhr.responseType = responseType;\n        } catch (e) {\n          // WebKit added support for the json responseType value on 09/03/2013\n          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are\n          // known to throw when setting the value \"json\" as the response type. Other older\n          // browsers implementing the responseType\n          //\n          // The json response type can be ignored if not supported, because JSON payloads are\n          // parsed on the client-side regardless.\n          if (responseType !== 'json') {\n            throw e;\n          }\n        }\n      }\n\n      xhr.send(isUndefined(post) ? null : post);\n    }\n\n    if (timeout > 0) {\n      var timeoutId = $browserDefer(timeoutRequest, timeout);\n    } else if (isPromiseLike(timeout)) {\n      timeout.then(timeoutRequest);\n    }\n\n\n    function timeoutRequest() {\n      if (jsonpDone) {\n        jsonpDone();\n      }\n      if (xhr) {\n        xhr.abort();\n      }\n    }\n\n    function completeRequest(callback, status, response, headersString, statusText) {\n      // cancel timeout and subsequent timeout promise resolution\n      if (isDefined(timeoutId)) {\n        $browserDefer.cancel(timeoutId);\n      }\n      jsonpDone = xhr = null;\n\n      callback(status, response, headersString, statusText);\n      $browser.$$completeOutstandingRequest(noop);\n    }\n  };\n\n  function jsonpReq(url, callbackPath, done) {\n    url = url.replace('JSON_CALLBACK', callbackPath);\n    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:\n    // - fetches local scripts via XHR and evals them\n    // - adds and immediately removes script elements from the document\n    var script = rawDocument.createElement('script'), callback = null;\n    script.type = 'text/javascript';\n    script.src = url;\n    script.async = true;\n\n    callback = function(event) {\n      removeEventListenerFn(script, 'load', callback);\n      removeEventListenerFn(script, 'error', callback);\n      rawDocument.body.removeChild(script);\n      script = null;\n      var status = -1;\n      var text = 'unknown';\n\n      if (event) {\n        if (event.type === 'load' && !callbacks.wasCalled(callbackPath)) {\n          event = { type: 'error' };\n        }\n        text = event.type;\n        status = event.type === 'error' ? 404 : 200;\n      }\n\n      if (done) {\n        done(status, text);\n      }\n    };\n\n    addEventListenerFn(script, 'load', callback);\n    addEventListenerFn(script, 'error', callback);\n    rawDocument.body.appendChild(script);\n    return callback;\n  }\n}\n\nvar $interpolateMinErr = angular.$interpolateMinErr = minErr('$interpolate');\n$interpolateMinErr.throwNoconcat = function(text) {\n  throw $interpolateMinErr('noconcat',\n      'Error while interpolating: {0}\\nStrict Contextual Escaping disallows ' +\n      'interpolations that concatenate multiple expressions when a trusted value is ' +\n      'required.  See http://docs.angularjs.org/api/ng.$sce', text);\n};\n\n$interpolateMinErr.interr = function(text, err) {\n  return $interpolateMinErr('interr', 'Can\\'t interpolate: {0}\\n{1}', text, err.toString());\n};\n\n/**\n * @ngdoc provider\n * @name $interpolateProvider\n * @this\n *\n * @description\n *\n * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.\n *\n * <div class=\"alert alert-danger\">\n * This feature is sometimes used to mix different markup languages, e.g. to wrap an Angular\n * template within a Python Jinja template (or any other template language). Mixing templating\n * languages is **very dangerous**. The embedding template language will not safely escape Angular\n * expressions, so any user-controlled values in the template will cause Cross Site Scripting (XSS)\n * security bugs!\n * </div>\n *\n * @example\n<example name=\"custom-interpolation-markup\" module=\"customInterpolationApp\">\n<file name=\"index.html\">\n<script>\n  var customInterpolationApp = angular.module('customInterpolationApp', []);\n\n  customInterpolationApp.config(function($interpolateProvider) {\n    $interpolateProvider.startSymbol('//');\n    $interpolateProvider.endSymbol('//');\n  });\n\n\n  customInterpolationApp.controller('DemoController', function() {\n      this.label = \"This binding is brought you by // interpolation symbols.\";\n  });\n</script>\n<div ng-controller=\"DemoController as demo\">\n    //demo.label//\n</div>\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  it('should interpolate binding with custom symbols', function() {\n    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');\n  });\n</file>\n</example>\n */\nfunction $InterpolateProvider() {\n  var startSymbol = '{{';\n  var endSymbol = '}}';\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#startSymbol\n   * @description\n   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.\n   *\n   * @param {string=} value new value to set the starting symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.startSymbol = function(value) {\n    if (value) {\n      startSymbol = value;\n      return this;\n    } else {\n      return startSymbol;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#endSymbol\n   * @description\n   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n   *\n   * @param {string=} value new value to set the ending symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.endSymbol = function(value) {\n    if (value) {\n      endSymbol = value;\n      return this;\n    } else {\n      return endSymbol;\n    }\n  };\n\n\n  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {\n    var startSymbolLength = startSymbol.length,\n        endSymbolLength = endSymbol.length,\n        escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'),\n        escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g');\n\n    function escape(ch) {\n      return '\\\\\\\\\\\\' + ch;\n    }\n\n    function unescapeText(text) {\n      return text.replace(escapedStartRegexp, startSymbol).\n        replace(escapedEndRegexp, endSymbol);\n    }\n\n    function stringify(value) {\n      if (value == null) { // null || undefined\n        return '';\n      }\n      switch (typeof value) {\n        case 'string':\n          break;\n        case 'number':\n          value = '' + value;\n          break;\n        default:\n          value = toJson(value);\n      }\n\n      return value;\n    }\n\n    // TODO: this is the same as the constantWatchDelegate in parse.js\n    function constantWatchDelegate(scope, listener, objectEquality, constantInterp) {\n      var unwatch = scope.$watch(function constantInterpolateWatch(scope) {\n        unwatch();\n        return constantInterp(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    /**\n     * @ngdoc service\n     * @name $interpolate\n     * @kind function\n     *\n     * @requires $parse\n     * @requires $sce\n     *\n     * @description\n     *\n     * Compiles a string with markup into an interpolation function. This service is used by the\n     * HTML {@link ng.$compile $compile} service for data binding. See\n     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the\n     * interpolation markup.\n     *\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var exp = $interpolate('Hello {{name | uppercase}}!');\n     *   expect(exp({name:'Angular'})).toEqual('Hello ANGULAR!');\n     * ```\n     *\n     * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is\n     * `true`, the interpolation function will return `undefined` unless all embedded expressions\n     * evaluate to a value other than `undefined`.\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var context = {greeting: 'Hello', name: undefined };\n     *\n     *   // default \"forgiving\" mode\n     *   var exp = $interpolate('{{greeting}} {{name}}!');\n     *   expect(exp(context)).toEqual('Hello !');\n     *\n     *   // \"allOrNothing\" mode\n     *   exp = $interpolate('{{greeting}} {{name}}!', false, null, true);\n     *   expect(exp(context)).toBeUndefined();\n     *   context.name = 'Angular';\n     *   expect(exp(context)).toEqual('Hello Angular!');\n     * ```\n     *\n     * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior.\n     *\n     * #### Escaped Interpolation\n     * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers\n     * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash).\n     * It will be rendered as a regular start/end marker, and will not be interpreted as an expression\n     * or binding.\n     *\n     * This enables web-servers to prevent script injection attacks and defacing attacks, to some\n     * degree, while also enabling code examples to work without relying on the\n     * {@link ng.directive:ngNonBindable ngNonBindable} directive.\n     *\n     * **For security purposes, it is strongly encouraged that web servers escape user-supplied data,\n     * replacing angle brackets (&lt;, &gt;) with &amp;lt; and &amp;gt; respectively, and replacing all\n     * interpolation start/end markers with their escaped counterparts.**\n     *\n     * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered\n     * output when the $interpolate service processes the text. So, for HTML elements interpolated\n     * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter\n     * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such,\n     * this is typically useful only when user-data is used in rendering a template from the server, or\n     * when otherwise untrusted data is used by a directive.\n     *\n     * <example name=\"interpolation\">\n     *  <file name=\"index.html\">\n     *    <div ng-init=\"username='A user'\">\n     *      <p ng-init=\"apptitle='Escaping demo'\">{{apptitle}}: \\{\\{ username = \"defaced value\"; \\}\\}\n     *        </p>\n     *      <p><strong>{{username}}</strong> attempts to inject code which will deface the\n     *        application, but fails to accomplish their task, because the server has correctly\n     *        escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash)\n     *        characters.</p>\n     *      <p>Instead, the result of the attempted script injection is visible, and can be removed\n     *        from the database by an administrator.</p>\n     *    </div>\n     *  </file>\n     * </example>\n     *\n     * @knownIssue\n     * It is currently not possible for an interpolated expression to contain the interpolation end\n     * symbol. For example, `{{ '}}' }}` will be incorrectly interpreted as `{{ ' }}` + `' }}`, i.e.\n     * an interpolated expression consisting of a single-quote (`'`) and the `' }}` string.\n     *\n     * @knownIssue\n     * All directives and components must use the standard `{{` `}}` interpolation symbols\n     * in their templates. If you change the application interpolation symbols the {@link $compile}\n     * service will attempt to denormalize the standard symbols to the custom symbols.\n     * The denormalization process is not clever enough to know not to replace instances of the standard\n     * symbols where they would not normally be treated as interpolation symbols. For example in the following\n     * code snippet the closing braces of the literal object will get incorrectly denormalized:\n     *\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"}}\">\n     * ```\n     *\n     * The workaround is to ensure that such instances are separated by whitespace:\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"} }\">\n     * ```\n     *\n     * See https://github.com/angular/angular.js/pull/14610#issuecomment-219401099 for more information.\n     *\n     * @param {string} text The text with markup to interpolate.\n     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have\n     *    embedded expression in order to return an interpolation function. Strings with no\n     *    embedded expression will return null for the interpolation function.\n     * @param {string=} trustedContext when provided, the returned function passes the interpolated\n     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,\n     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that\n     *    provides Strict Contextual Escaping for details.\n     * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined\n     *    unless all embedded expressions evaluate to a value other than `undefined`.\n     * @returns {function(context)} an interpolation function which is used to compute the\n     *    interpolated string. The function has these parameters:\n     *\n     * - `context`: evaluation context for all expressions embedded in the interpolated text\n     */\n    function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {\n      // Provide a quick exit and simplified result function for text with no interpolation\n      if (!text.length || text.indexOf(startSymbol) === -1) {\n        var constantInterp;\n        if (!mustHaveExpression) {\n          var unescapedText = unescapeText(text);\n          constantInterp = valueFn(unescapedText);\n          constantInterp.exp = text;\n          constantInterp.expressions = [];\n          constantInterp.$$watchDelegate = constantWatchDelegate;\n        }\n        return constantInterp;\n      }\n\n      allOrNothing = !!allOrNothing;\n      var startIndex,\n          endIndex,\n          index = 0,\n          expressions = [],\n          parseFns = [],\n          textLength = text.length,\n          exp,\n          concat = [],\n          expressionPositions = [];\n\n      while (index < textLength) {\n        if (((startIndex = text.indexOf(startSymbol, index)) !== -1) &&\n             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) !== -1)) {\n          if (index !== startIndex) {\n            concat.push(unescapeText(text.substring(index, startIndex)));\n          }\n          exp = text.substring(startIndex + startSymbolLength, endIndex);\n          expressions.push(exp);\n          parseFns.push($parse(exp, parseStringifyInterceptor));\n          index = endIndex + endSymbolLength;\n          expressionPositions.push(concat.length);\n          concat.push('');\n        } else {\n          // we did not find an interpolation, so we have to add the remainder to the separators array\n          if (index !== textLength) {\n            concat.push(unescapeText(text.substring(index)));\n          }\n          break;\n        }\n      }\n\n      // Concatenating expressions makes it hard to reason about whether some combination of\n      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a\n      // single expression be used for iframe[src], object[src], etc., we ensure that the value\n      // that's used is assigned or constructed by some JS code somewhere that is more testable or\n      // make it obvious that you bound the value to some user controlled value.  This helps reduce\n      // the load when auditing for XSS issues.\n      if (trustedContext && concat.length > 1) {\n          $interpolateMinErr.throwNoconcat(text);\n      }\n\n      if (!mustHaveExpression || expressions.length) {\n        var compute = function(values) {\n          for (var i = 0, ii = expressions.length; i < ii; i++) {\n            if (allOrNothing && isUndefined(values[i])) return;\n            concat[expressionPositions[i]] = values[i];\n          }\n          return concat.join('');\n        };\n\n        var getValue = function(value) {\n          return trustedContext ?\n            $sce.getTrusted(trustedContext, value) :\n            $sce.valueOf(value);\n        };\n\n        return extend(function interpolationFn(context) {\n            var i = 0;\n            var ii = expressions.length;\n            var values = new Array(ii);\n\n            try {\n              for (; i < ii; i++) {\n                values[i] = parseFns[i](context);\n              }\n\n              return compute(values);\n            } catch (err) {\n              $exceptionHandler($interpolateMinErr.interr(text, err));\n            }\n\n          }, {\n          // all of these properties are undocumented for now\n          exp: text, //just for compatibility with regular watchers created via $watch\n          expressions: expressions,\n          $$watchDelegate: function(scope, listener) {\n            var lastValue;\n            return scope.$watchGroup(parseFns, /** @this */ function interpolateFnWatcher(values, oldValues) {\n              var currValue = compute(values);\n              if (isFunction(listener)) {\n                listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope);\n              }\n              lastValue = currValue;\n            });\n          }\n        });\n      }\n\n      function parseStringifyInterceptor(value) {\n        try {\n          value = getValue(value);\n          return allOrNothing && !isDefined(value) ? value : stringify(value);\n        } catch (err) {\n          $exceptionHandler($interpolateMinErr.interr(text, err));\n        }\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#startSymbol\n     * @description\n     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.\n     *\n     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} start symbol.\n     */\n    $interpolate.startSymbol = function() {\n      return startSymbol;\n    };\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#endSymbol\n     * @description\n     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n     *\n     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} end symbol.\n     */\n    $interpolate.endSymbol = function() {\n      return endSymbol;\n    };\n\n    return $interpolate;\n  }];\n}\n\n/** @this */\nfunction $IntervalProvider() {\n  this.$get = ['$rootScope', '$window', '$q', '$$q', '$browser',\n       function($rootScope,   $window,   $q,   $$q,   $browser) {\n    var intervals = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $interval\n      *\n      * @description\n      * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay`\n      * milliseconds.\n      *\n      * The return value of registering an interval function is a promise. This promise will be\n      * notified upon each tick of the interval, and will be resolved after `count` iterations, or\n      * run indefinitely if `count` is not defined. The value of the notification will be the\n      * number of iterations that have run.\n      * To cancel an interval, call `$interval.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n      * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n      * time.\n      *\n      * <div class=\"alert alert-warning\">\n      * **Note**: Intervals created by this service must be explicitly destroyed when you are finished\n      * with them.  In particular they are not automatically destroyed when a controller's scope or a\n      * directive's element are destroyed.\n      * You should take this into consideration and make sure to always cancel the interval at the\n      * appropriate moment.  See the example below for more details on how and when to do this.\n      * </div>\n      *\n      * @param {function()} fn A function that should be called repeatedly. If no additional arguments\n      *   are passed (see below), the function is called with the current iteration count.\n      * @param {number} delay Number of milliseconds between each function call.\n      * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n      *   indefinitely.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @param {...*=} Pass additional parameters to the executed function.\n      * @returns {promise} A promise which will be notified on each iteration.\n      *\n      * @example\n      * <example module=\"intervalExample\" name=\"interval-service\">\n      * <file name=\"index.html\">\n      *   <script>\n      *     angular.module('intervalExample', [])\n      *       .controller('ExampleController', ['$scope', '$interval',\n      *         function($scope, $interval) {\n      *           $scope.format = 'M/d/yy h:mm:ss a';\n      *           $scope.blood_1 = 100;\n      *           $scope.blood_2 = 120;\n      *\n      *           var stop;\n      *           $scope.fight = function() {\n      *             // Don't start a new fight if we are already fighting\n      *             if ( angular.isDefined(stop) ) return;\n      *\n      *             stop = $interval(function() {\n      *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {\n      *                 $scope.blood_1 = $scope.blood_1 - 3;\n      *                 $scope.blood_2 = $scope.blood_2 - 4;\n      *               } else {\n      *                 $scope.stopFight();\n      *               }\n      *             }, 100);\n      *           };\n      *\n      *           $scope.stopFight = function() {\n      *             if (angular.isDefined(stop)) {\n      *               $interval.cancel(stop);\n      *               stop = undefined;\n      *             }\n      *           };\n      *\n      *           $scope.resetFight = function() {\n      *             $scope.blood_1 = 100;\n      *             $scope.blood_2 = 120;\n      *           };\n      *\n      *           $scope.$on('$destroy', function() {\n      *             // Make sure that the interval is destroyed too\n      *             $scope.stopFight();\n      *           });\n      *         }])\n      *       // Register the 'myCurrentTime' directive factory method.\n      *       // We inject $interval and dateFilter service since the factory method is DI.\n      *       .directive('myCurrentTime', ['$interval', 'dateFilter',\n      *         function($interval, dateFilter) {\n      *           // return the directive link function. (compile function not needed)\n      *           return function(scope, element, attrs) {\n      *             var format,  // date format\n      *                 stopTime; // so that we can cancel the time updates\n      *\n      *             // used to update the UI\n      *             function updateTime() {\n      *               element.text(dateFilter(new Date(), format));\n      *             }\n      *\n      *             // watch the expression, and update the UI on change.\n      *             scope.$watch(attrs.myCurrentTime, function(value) {\n      *               format = value;\n      *               updateTime();\n      *             });\n      *\n      *             stopTime = $interval(updateTime, 1000);\n      *\n      *             // listen on DOM destroy (removal) event, and cancel the next UI update\n      *             // to prevent updating time after the DOM element was removed.\n      *             element.on('$destroy', function() {\n      *               $interval.cancel(stopTime);\n      *             });\n      *           }\n      *         }]);\n      *   </script>\n      *\n      *   <div>\n      *     <div ng-controller=\"ExampleController\">\n      *       <label>Date format: <input ng-model=\"format\"></label> <hr/>\n      *       Current time is: <span my-current-time=\"format\"></span>\n      *       <hr/>\n      *       Blood 1 : <font color='red'>{{blood_1}}</font>\n      *       Blood 2 : <font color='red'>{{blood_2}}</font>\n      *       <button type=\"button\" data-ng-click=\"fight()\">Fight</button>\n      *       <button type=\"button\" data-ng-click=\"stopFight()\">StopFight</button>\n      *       <button type=\"button\" data-ng-click=\"resetFight()\">resetFight</button>\n      *     </div>\n      *   </div>\n      *\n      * </file>\n      * </example>\n      */\n    function interval(fn, delay, count, invokeApply) {\n      var hasParams = arguments.length > 4,\n          args = hasParams ? sliceArgs(arguments, 4) : [],\n          setInterval = $window.setInterval,\n          clearInterval = $window.clearInterval,\n          iteration = 0,\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = isDefined(count) ? count : 0;\n\n      promise.$$intervalId = setInterval(function tick() {\n        if (skipApply) {\n          $browser.defer(callback);\n        } else {\n          $rootScope.$evalAsync(callback);\n        }\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          deferred.resolve(iteration);\n          clearInterval(promise.$$intervalId);\n          delete intervals[promise.$$intervalId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n\n      }, delay);\n\n      intervals[promise.$$intervalId] = deferred;\n\n      return promise;\n\n      function callback() {\n        if (!hasParams) {\n          fn(iteration);\n        } else {\n          fn.apply(null, args);\n        }\n      }\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $interval#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`.\n      *\n      * @param {Promise=} promise returned by the `$interval` function.\n      * @returns {boolean} Returns `true` if the task was successfully canceled.\n      */\n    interval.cancel = function(promise) {\n      if (promise && promise.$$intervalId in intervals) {\n        intervals[promise.$$intervalId].reject('canceled');\n        $window.clearInterval(promise.$$intervalId);\n        delete intervals[promise.$$intervalId];\n        return true;\n      }\n      return false;\n    };\n\n    return interval;\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $jsonpCallbacks\n * @requires $window\n * @description\n * This service handles the lifecycle of callbacks to handle JSONP requests.\n * Override this service if you wish to customise where the callbacks are stored and\n * how they vary compared to the requested url.\n */\nvar $jsonpCallbacksProvider = /** @this */ function() {\n  this.$get = ['$window', function($window) {\n    var callbacks = $window.angular.callbacks;\n    var callbackMap = {};\n\n    function createCallback(callbackId) {\n      var callback = function(data) {\n        callback.data = data;\n        callback.called = true;\n      };\n      callback.id = callbackId;\n      return callback;\n    }\n\n    return {\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#createCallback\n       * @param {string} url the url of the JSONP request\n       * @returns {string} the callback path to send to the server as part of the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to create a callback and get hold of the path to the callback\n       * to pass to the server, which will be used to call the callback with its payload in the JSONP response.\n       */\n      createCallback: function(url) {\n        var callbackId = '_' + (callbacks.$$counter++).toString(36);\n        var callbackPath = 'angular.callbacks.' + callbackId;\n        var callback = createCallback(callbackId);\n        callbackMap[callbackPath] = callbacks[callbackId] = callback;\n        return callbackPath;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#wasCalled\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {boolean} whether the callback has been called, as a result of the JSONP response\n       * @description\n       * {@link $httpBackend} calls this method to find out whether the JSONP response actually called the\n       * callback that was passed in the request.\n       */\n      wasCalled: function(callbackPath) {\n        return callbackMap[callbackPath].called;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#getResponse\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {*} the data received from the response via the registered callback\n       * @description\n       * {@link $httpBackend} calls this method to get hold of the data that was provided to the callback\n       * in the JSONP response.\n       */\n      getResponse: function(callbackPath) {\n        return callbackMap[callbackPath].data;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#removeCallback\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to remove the callback after the JSONP request has\n       * completed or timed-out.\n       */\n      removeCallback: function(callbackPath) {\n        var callback = callbackMap[callbackPath];\n        delete callbacks[callback.id];\n        delete callbackMap[callbackPath];\n      }\n    };\n  }];\n};\n\n/**\n * @ngdoc service\n * @name $locale\n *\n * @description\n * $locale service provides localization rules for various Angular components. As of right now the\n * only public api is:\n *\n * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)\n */\n\nvar PATH_MATCH = /^([^?#]*)(\\?([^#]*))?(#(.*))?$/,\n    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};\nvar $locationMinErr = minErr('$location');\n\n\n/**\n * Encode path using encodeUriSegment, ignoring forward slashes\n *\n * @param {string} path Path to encode\n * @returns {string}\n */\nfunction encodePath(path) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    segments[i] = encodeUriSegment(segments[i]);\n  }\n\n  return segments.join('/');\n}\n\nfunction parseAbsoluteUrl(absoluteUrl, locationObj) {\n  var parsedUrl = urlResolve(absoluteUrl);\n\n  locationObj.$$protocol = parsedUrl.protocol;\n  locationObj.$$host = parsedUrl.hostname;\n  locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;\n}\n\nvar DOUBLE_SLASH_REGEX = /^\\s*[\\\\/]{2,}/;\nfunction parseAppUrl(url, locationObj) {\n\n  if (DOUBLE_SLASH_REGEX.test(url)) {\n    throw $locationMinErr('badpath', 'Invalid url \"{0}\".', url);\n  }\n\n  var prefixed = (url.charAt(0) !== '/');\n  if (prefixed) {\n    url = '/' + url;\n  }\n  var match = urlResolve(url);\n  locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ?\n      match.pathname.substring(1) : match.pathname);\n  locationObj.$$search = parseKeyValue(match.search);\n  locationObj.$$hash = decodeURIComponent(match.hash);\n\n  // make sure path starts with '/';\n  if (locationObj.$$path && locationObj.$$path.charAt(0) !== '/') {\n    locationObj.$$path = '/' + locationObj.$$path;\n  }\n}\n\nfunction startsWith(str, search) {\n  return str.slice(0, search.length) === search;\n}\n\n/**\n *\n * @param {string} base\n * @param {string} url\n * @returns {string} returns text from `url` after `base` or `undefined` if it does not begin with\n *                   the expected string.\n */\nfunction stripBaseUrl(base, url) {\n  if (startsWith(url, base)) {\n    return url.substr(base.length);\n  }\n}\n\n\nfunction stripHash(url) {\n  var index = url.indexOf('#');\n  return index === -1 ? url : url.substr(0, index);\n}\n\nfunction trimEmptyHash(url) {\n  return url.replace(/(#.+)|#$/, '$1');\n}\n\n\nfunction stripFile(url) {\n  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);\n}\n\n/* return the server only (scheme://host:port) */\nfunction serverBase(url) {\n  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));\n}\n\n\n/**\n * LocationHtml5Url represents a URL\n * This object is exposed as $location service when HTML5 mode is enabled and supported\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} basePrefix URL path prefix\n */\nfunction LocationHtml5Url(appBase, appBaseNoFile, basePrefix) {\n  this.$$html5 = true;\n  basePrefix = basePrefix || '';\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given HTML5 (regular) URL string into properties\n   * @param {string} url HTML5 URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var pathUrl = stripBaseUrl(appBaseNoFile, url);\n    if (!isString(pathUrl)) {\n      throw $locationMinErr('ipthprfx', 'Invalid url \"{0}\", missing path prefix \"{1}\".', url,\n          appBaseNoFile);\n    }\n\n    parseAppUrl(pathUrl, this);\n\n    if (!this.$$path) {\n      this.$$path = '/';\n    }\n\n    this.$$compose();\n  };\n\n  /**\n   * Compose url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/'\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n    var appUrl, prevAppUrl;\n    var rewrittenUrl;\n\n\n    if (isDefined(appUrl = stripBaseUrl(appBase, url))) {\n      prevAppUrl = appUrl;\n      if (basePrefix && isDefined(appUrl = stripBaseUrl(basePrefix, appUrl))) {\n        rewrittenUrl = appBaseNoFile + (stripBaseUrl('/', appUrl) || appUrl);\n      } else {\n        rewrittenUrl = appBase + prevAppUrl;\n      }\n    } else if (isDefined(appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBaseNoFile + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when developer doesn't opt into html5 mode.\n * It also serves as the base class for html5 mode fallback on legacy browsers.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) {\n\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given hashbang URL into properties\n   * @param {string} url Hashbang URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var withoutBaseUrl = stripBaseUrl(appBase, url) || stripBaseUrl(appBaseNoFile, url);\n    var withoutHashUrl;\n\n    if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') {\n\n      // The rest of the URL starts with a hash so we have\n      // got either a hashbang path or a plain hash fragment\n      withoutHashUrl = stripBaseUrl(hashPrefix, withoutBaseUrl);\n      if (isUndefined(withoutHashUrl)) {\n        // There was no hashbang prefix so we just have a hash fragment\n        withoutHashUrl = withoutBaseUrl;\n      }\n\n    } else {\n      // There was no hashbang path nor hash fragment:\n      // If we are in HTML5 mode we use what is left as the path;\n      // Otherwise we ignore what is left\n      if (this.$$html5) {\n        withoutHashUrl = withoutBaseUrl;\n      } else {\n        withoutHashUrl = '';\n        if (isUndefined(withoutBaseUrl)) {\n          appBase = url;\n          this.replace();\n        }\n      }\n    }\n\n    parseAppUrl(withoutHashUrl, this);\n\n    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);\n\n    this.$$compose();\n\n    /*\n     * In Windows, on an anchor node on documents loaded from\n     * the filesystem, the browser will return a pathname\n     * prefixed with the drive name ('/C:/path') when a\n     * pathname without a drive is set:\n     *  * a.setAttribute('href', '/foo')\n     *   * a.pathname === '/C:/foo' //true\n     *\n     * Inside of Angular, we're always using pathnames that\n     * do not include drive names for routing.\n     */\n    function removeWindowsDriveName(path, url, base) {\n      /*\n      Matches paths for file protocol on windows,\n      such as /C:/foo/bar, and captures only /foo/bar.\n      */\n      var windowsFilePathExp = /^\\/[A-Z]:(\\/.*)/;\n\n      var firstPathSegmentMatch;\n\n      //Get the relative path from the input URL.\n      if (startsWith(url, base)) {\n        url = url.replace(base, '');\n      }\n\n      // The input URL intentionally contains a first path segment that ends with a colon.\n      if (windowsFilePathExp.exec(url)) {\n        return path;\n      }\n\n      firstPathSegmentMatch = windowsFilePathExp.exec(path);\n      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;\n    }\n  };\n\n  /**\n   * Compose hashbang URL and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (stripHash(appBase) === stripHash(url)) {\n      this.$$parse(url);\n      return true;\n    }\n    return false;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when html5 history api is enabled but the browser\n * does not support it.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) {\n  this.$$html5 = true;\n  LocationHashbangUrl.apply(this, arguments);\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n\n    var rewrittenUrl;\n    var appUrl;\n\n    if (appBase === stripHash(url)) {\n      rewrittenUrl = url;\n    } else if ((appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBase + hashPrefix + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#'\n    this.$$absUrl = appBase + hashPrefix + this.$$url;\n  };\n\n}\n\n\nvar locationPrototype = {\n\n  /**\n   * Ensure absolute URL is initialized.\n   * @private\n   */\n  $$absUrl:'',\n\n  /**\n   * Are we in html5 mode?\n   * @private\n   */\n  $$html5: false,\n\n  /**\n   * Has any change been replacing?\n   * @private\n   */\n  $$replace: false,\n\n  /**\n   * @ngdoc method\n   * @name $location#absUrl\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return full URL representation with all segments encoded according to rules specified in\n   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var absUrl = $location.absUrl();\n   * // => \"http://example.com/#/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @return {string} full URL\n   */\n  absUrl: locationGetter('$$absUrl'),\n\n  /**\n   * @ngdoc method\n   * @name $location#url\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return URL (e.g. `/path?a=b#hash`) when called without any parameter.\n   *\n   * Change path, search and hash, when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var url = $location.url();\n   * // => \"/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @param {string=} url New URL without base prefix (e.g. `/path?a=b#hash`)\n   * @return {string} url\n   */\n  url: function(url) {\n    if (isUndefined(url)) {\n      return this.$$url;\n    }\n\n    var match = PATH_MATCH.exec(url);\n    if (match[1] || url === '') this.path(decodeURIComponent(match[1]));\n    if (match[2] || match[1] || url === '') this.search(match[3] || '');\n    this.hash(match[5] || '');\n\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#protocol\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return protocol of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var protocol = $location.protocol();\n   * // => \"http\"\n   * ```\n   *\n   * @return {string} protocol of current URL\n   */\n  protocol: locationGetter('$$protocol'),\n\n  /**\n   * @ngdoc method\n   * @name $location#host\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return host of current URL.\n   *\n   * Note: compared to the non-angular version `location.host` which returns `hostname:port`, this returns the `hostname` portion only.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var host = $location.host();\n   * // => \"example.com\"\n   *\n   * // given URL http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo\n   * host = $location.host();\n   * // => \"example.com\"\n   * host = location.host;\n   * // => \"example.com:8080\"\n   * ```\n   *\n   * @return {string} host of current URL.\n   */\n  host: locationGetter('$$host'),\n\n  /**\n   * @ngdoc method\n   * @name $location#port\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return port of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var port = $location.port();\n   * // => 80\n   * ```\n   *\n   * @return {Number} port\n   */\n  port: locationGetter('$$port'),\n\n  /**\n   * @ngdoc method\n   * @name $location#path\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return path of current URL when called without any parameter.\n   *\n   * Change path when called with parameter and return `$location`.\n   *\n   * Note: Path should always begin with forward slash (/), this method will add the forward slash\n   * if it is missing.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var path = $location.path();\n   * // => \"/some/path\"\n   * ```\n   *\n   * @param {(string|number)=} path New path\n   * @return {(string|object)} path if called with no parameters, or `$location` if called with a parameter\n   */\n  path: locationGetterSetter('$$path', function(path) {\n    path = path !== null ? path.toString() : '';\n    return path.charAt(0) === '/' ? path : '/' + path;\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#search\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return search part (as object) of current URL when called without any parameter.\n   *\n   * Change search part when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var searchObject = $location.search();\n   * // => {foo: 'bar', baz: 'xoxo'}\n   *\n   * // set foo to 'yipee'\n   * $location.search('foo', 'yipee');\n   * // $location.search() => {foo: 'yipee', baz: 'xoxo'}\n   * ```\n   *\n   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or\n   * hash object.\n   *\n   * When called with a single argument the method acts as a setter, setting the `search` component\n   * of `$location` to the specified value.\n   *\n   * If the argument is a hash object containing an array of values, these values will be encoded\n   * as duplicate search parameters in the URL.\n   *\n   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`\n   * will override only a single search property.\n   *\n   * If `paramValue` is an array, it will override the property of the `search` component of\n   * `$location` specified via the first argument.\n   *\n   * If `paramValue` is `null`, the property specified via the first argument will be deleted.\n   *\n   * If `paramValue` is `true`, the property specified via the first argument will be added with no\n   * value nor trailing equal sign.\n   *\n   * @return {Object} If called with no arguments returns the parsed `search` object. If called with\n   * one or more arguments returns `$location` object itself.\n   */\n  search: function(search, paramValue) {\n    switch (arguments.length) {\n      case 0:\n        return this.$$search;\n      case 1:\n        if (isString(search) || isNumber(search)) {\n          search = search.toString();\n          this.$$search = parseKeyValue(search);\n        } else if (isObject(search)) {\n          search = copy(search, {});\n          // remove object undefined or null properties\n          forEach(search, function(value, key) {\n            if (value == null) delete search[key];\n          });\n\n          this.$$search = search;\n        } else {\n          throw $locationMinErr('isrcharg',\n              'The first argument of the `$location#search()` call must be a string or an object.');\n        }\n        break;\n      default:\n        if (isUndefined(paramValue) || paramValue === null) {\n          delete this.$$search[search];\n        } else {\n          this.$$search[search] = paramValue;\n        }\n    }\n\n    this.$$compose();\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#hash\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Returns the hash fragment when called without any parameters.\n   *\n   * Changes the hash fragment when called with a parameter and returns `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue\n   * var hash = $location.hash();\n   * // => \"hashValue\"\n   * ```\n   *\n   * @param {(string|number)=} hash New hash fragment\n   * @return {string} hash\n   */\n  hash: locationGetterSetter('$$hash', function(hash) {\n    return hash !== null ? hash.toString() : '';\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#replace\n   *\n   * @description\n   * If called, all changes to $location during the current `$digest` will replace the current history\n   * record, instead of adding a new one.\n   */\n  replace: function() {\n    this.$$replace = true;\n    return this;\n  }\n};\n\nforEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) {\n  Location.prototype = Object.create(locationPrototype);\n\n  /**\n   * @ngdoc method\n   * @name $location#state\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return the history state object when called without any parameter.\n   *\n   * Change the history state object when called with one parameter and return `$location`.\n   * The state object is later passed to `pushState` or `replaceState`.\n   *\n   * NOTE: This method is supported only in HTML5 mode and only in browsers supporting\n   * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support\n   * older browsers (like IE9 or Android < 4.0), don't use this method.\n   *\n   * @param {object=} state State object for pushState or replaceState\n   * @return {object} state\n   */\n  Location.prototype.state = function(state) {\n    if (!arguments.length) {\n      return this.$$state;\n    }\n\n    if (Location !== LocationHtml5Url || !this.$$html5) {\n      throw $locationMinErr('nostate', 'History API state support is available only ' +\n        'in HTML5 mode and only in browsers supporting HTML5 History API');\n    }\n    // The user might modify `stateObject` after invoking `$location.state(stateObject)`\n    // but we're changing the $$state reference to $browser.state() during the $digest\n    // so the modification window is narrow.\n    this.$$state = isUndefined(state) ? null : state;\n\n    return this;\n  };\n});\n\n\nfunction locationGetter(property) {\n  return /** @this */ function() {\n    return this[property];\n  };\n}\n\n\nfunction locationGetterSetter(property, preprocess) {\n  return /** @this */ function(value) {\n    if (isUndefined(value)) {\n      return this[property];\n    }\n\n    this[property] = preprocess(value);\n    this.$$compose();\n\n    return this;\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $location\n *\n * @requires $rootElement\n *\n * @description\n * The $location service parses the URL in the browser address bar (based on the\n * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL\n * available to your application. Changes to the URL in the address bar are reflected into\n * $location service and changes to $location are reflected into the browser address bar.\n *\n * **The $location service:**\n *\n * - Exposes the current URL in the browser address bar, so you can\n *   - Watch and observe the URL.\n *   - Change the URL.\n * - Synchronizes the URL with the browser when the user\n *   - Changes the address bar.\n *   - Clicks the back or forward button (or clicks a History link).\n *   - Clicks on a link.\n * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).\n *\n * For more information see {@link guide/$location Developer Guide: Using $location}\n */\n\n/**\n * @ngdoc provider\n * @name $locationProvider\n * @this\n *\n * @description\n * Use the `$locationProvider` to configure how the application deep linking paths are stored.\n */\nfunction $LocationProvider() {\n  var hashPrefix = '',\n      html5Mode = {\n        enabled: false,\n        requireBase: true,\n        rewriteLinks: true\n      };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#hashPrefix\n   * @description\n   * The default value for the prefix is `''`.\n   * @param {string=} prefix Prefix for hash part (containing path and search)\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.hashPrefix = function(prefix) {\n    if (isDefined(prefix)) {\n      hashPrefix = prefix;\n      return this;\n    } else {\n      return hashPrefix;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#html5Mode\n   * @description\n   * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value.\n   *   If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported\n   *   properties:\n   *   - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to\n   *     change urls where supported. Will fall back to hash-prefixed paths in browsers that do not\n   *     support `pushState`.\n   *   - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies\n   *     whether or not a <base> tag is required to be present. If `enabled` and `requireBase` are\n   *     true, and a base tag is not present, an error will be thrown when `$location` is injected.\n   *     See the {@link guide/$location $location guide for more information}\n   *   - **rewriteLinks** - `{boolean|string}` - (default: `true`) When html5Mode is enabled,\n   *     enables/disables URL rewriting for relative links. If set to a string, URL rewriting will\n   *     only happen on links with an attribute that matches the given string. For example, if set\n   *     to `'internal-link'`, then the URL will only be rewritten for `<a internal-link>` links.\n   *     Note that [attribute name normalization](guide/directive#normalization) does not apply\n   *     here, so `'internalLink'` will **not** match `'internal-link'`.\n   *\n   * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter\n   */\n  this.html5Mode = function(mode) {\n    if (isBoolean(mode)) {\n      html5Mode.enabled = mode;\n      return this;\n    } else if (isObject(mode)) {\n\n      if (isBoolean(mode.enabled)) {\n        html5Mode.enabled = mode.enabled;\n      }\n\n      if (isBoolean(mode.requireBase)) {\n        html5Mode.requireBase = mode.requireBase;\n      }\n\n      if (isBoolean(mode.rewriteLinks) || isString(mode.rewriteLinks)) {\n        html5Mode.rewriteLinks = mode.rewriteLinks;\n      }\n\n      return this;\n    } else {\n      return html5Mode;\n    }\n  };\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeStart\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted before a URL will change.\n   *\n   * This change can be prevented by calling\n   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more\n   * details about event object. Upon successful change\n   * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeSuccess\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted after a URL was changed.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window',\n      function($rootScope, $browser, $sniffer, $rootElement, $window) {\n    var $location,\n        LocationMode,\n        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''\n        initialUrl = $browser.url(),\n        appBase;\n\n    if (html5Mode.enabled) {\n      if (!baseHref && html5Mode.requireBase) {\n        throw $locationMinErr('nobase',\n          '$location in HTML5 mode requires a <base> tag to be present!');\n      }\n      appBase = serverBase(initialUrl) + (baseHref || '/');\n      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;\n    } else {\n      appBase = stripHash(initialUrl);\n      LocationMode = LocationHashbangUrl;\n    }\n    var appBaseNoFile = stripFile(appBase);\n\n    $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix);\n    $location.$$parseLinkUrl(initialUrl, initialUrl);\n\n    $location.$$state = $browser.state();\n\n    var IGNORE_URI_REGEXP = /^\\s*(javascript|mailto):/i;\n\n    function setBrowserUrlWithFallback(url, replace, state) {\n      var oldUrl = $location.url();\n      var oldState = $location.$$state;\n      try {\n        $browser.url(url, replace, state);\n\n        // Make sure $location.state() returns referentially identical (not just deeply equal)\n        // state object; this makes possible quick checking if the state changed in the digest\n        // loop. Checking deep equality would be too expensive.\n        $location.$$state = $browser.state();\n      } catch (e) {\n        // Restore old values if pushState fails\n        $location.url(oldUrl);\n        $location.$$state = oldState;\n\n        throw e;\n      }\n    }\n\n    $rootElement.on('click', function(event) {\n      var rewriteLinks = html5Mode.rewriteLinks;\n      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)\n      // currently we open nice url link and redirect then\n\n      if (!rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which === 2 || event.button === 2) return;\n\n      var elm = jqLite(event.target);\n\n      // traverse the DOM up to find first A tag\n      while (nodeName_(elm[0]) !== 'a') {\n        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)\n        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;\n      }\n\n      if (isString(rewriteLinks) && isUndefined(elm.attr(rewriteLinks))) return;\n\n      var absHref = elm.prop('href');\n      // get the actual href attribute - see\n      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx\n      var relHref = elm.attr('href') || elm.attr('xlink:href');\n\n      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {\n        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during\n        // an animation.\n        absHref = urlResolve(absHref.animVal).href;\n      }\n\n      // Ignore when url is started with javascript: or mailto:\n      if (IGNORE_URI_REGEXP.test(absHref)) return;\n\n      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {\n        if ($location.$$parseLinkUrl(absHref, relHref)) {\n          // We do a preventDefault for all urls that are part of the angular application,\n          // in html5mode and also without, so that we are able to abort navigation without\n          // getting double entries in the location history.\n          event.preventDefault();\n          // update location manually\n          if ($location.absUrl() !== $browser.url()) {\n            $rootScope.$apply();\n            // hack to work around FF6 bug 684208 when scenario runner clicks on links\n            $window.angular['ff-684208-preventDefault'] = true;\n          }\n        }\n      }\n    });\n\n\n    // rewrite hashbang url <> html5 url\n    if (trimEmptyHash($location.absUrl()) !== trimEmptyHash(initialUrl)) {\n      $browser.url($location.absUrl(), true);\n    }\n\n    var initializing = true;\n\n    // update $location when $browser url changes\n    $browser.onUrlChange(function(newUrl, newState) {\n\n      if (isUndefined(stripBaseUrl(appBaseNoFile, newUrl))) {\n        // If we are navigating outside of the app then force a reload\n        $window.location.href = newUrl;\n        return;\n      }\n\n      $rootScope.$evalAsync(function() {\n        var oldUrl = $location.absUrl();\n        var oldState = $location.$$state;\n        var defaultPrevented;\n        newUrl = trimEmptyHash(newUrl);\n        $location.$$parse(newUrl);\n        $location.$$state = newState;\n\n        defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n            newState, oldState).defaultPrevented;\n\n        // if the location was changed by a `$locationChangeStart` handler then stop\n        // processing this location change\n        if ($location.absUrl() !== newUrl) return;\n\n        if (defaultPrevented) {\n          $location.$$parse(oldUrl);\n          $location.$$state = oldState;\n          setBrowserUrlWithFallback(oldUrl, false, oldState);\n        } else {\n          initializing = false;\n          afterLocationChange(oldUrl, oldState);\n        }\n      });\n      if (!$rootScope.$$phase) $rootScope.$digest();\n    });\n\n    // update browser\n    $rootScope.$watch(function $locationWatch() {\n      var oldUrl = trimEmptyHash($browser.url());\n      var newUrl = trimEmptyHash($location.absUrl());\n      var oldState = $browser.state();\n      var currentReplace = $location.$$replace;\n      var urlOrStateChanged = oldUrl !== newUrl ||\n        ($location.$$html5 && $sniffer.history && oldState !== $location.$$state);\n\n      if (initializing || urlOrStateChanged) {\n        initializing = false;\n\n        $rootScope.$evalAsync(function() {\n          var newUrl = $location.absUrl();\n          var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n              $location.$$state, oldState).defaultPrevented;\n\n          // if the location was changed by a `$locationChangeStart` handler then stop\n          // processing this location change\n          if ($location.absUrl() !== newUrl) return;\n\n          if (defaultPrevented) {\n            $location.$$parse(oldUrl);\n            $location.$$state = oldState;\n          } else {\n            if (urlOrStateChanged) {\n              setBrowserUrlWithFallback(newUrl, currentReplace,\n                                        oldState === $location.$$state ? null : $location.$$state);\n            }\n            afterLocationChange(oldUrl, oldState);\n          }\n        });\n      }\n\n      $location.$$replace = false;\n\n      // we don't need to return anything because $evalAsync will make the digest loop dirty when\n      // there is a change\n    });\n\n    return $location;\n\n    function afterLocationChange(oldUrl, oldState) {\n      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl,\n        $location.$$state, oldState);\n    }\n}];\n}\n\n/**\n * @ngdoc service\n * @name $log\n * @requires $window\n *\n * @description\n * Simple service for logging. Default implementation safely writes the message\n * into the browser's console (if present).\n *\n * The main purpose of this service is to simplify debugging and troubleshooting.\n *\n * The default is to log `debug` messages. You can use\n * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.\n *\n * @example\n   <example module=\"logExample\" name=\"log-service\">\n     <file name=\"script.js\">\n       angular.module('logExample', [])\n         .controller('LogController', ['$scope', '$log', function($scope, $log) {\n           $scope.$log = $log;\n           $scope.message = 'Hello World!';\n         }]);\n     </file>\n     <file name=\"index.html\">\n       <div ng-controller=\"LogController\">\n         <p>Reload this page with open console, enter text and hit the log button...</p>\n         <label>Message:\n         <input type=\"text\" ng-model=\"message\" /></label>\n         <button ng-click=\"$log.log(message)\">log</button>\n         <button ng-click=\"$log.warn(message)\">warn</button>\n         <button ng-click=\"$log.info(message)\">info</button>\n         <button ng-click=\"$log.error(message)\">error</button>\n         <button ng-click=\"$log.debug(message)\">debug</button>\n       </div>\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc provider\n * @name $logProvider\n * @this\n *\n * @description\n * Use the `$logProvider` to configure how the application logs messages\n */\nfunction $LogProvider() {\n  var debug = true,\n      self = this;\n\n  /**\n   * @ngdoc method\n   * @name $logProvider#debugEnabled\n   * @description\n   * @param {boolean=} flag enable or disable debug level messages\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.debugEnabled = function(flag) {\n    if (isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = ['$window', function($window) {\n    return {\n      /**\n       * @ngdoc method\n       * @name $log#log\n       *\n       * @description\n       * Write a log message\n       */\n      log: consoleLog('log'),\n\n      /**\n       * @ngdoc method\n       * @name $log#info\n       *\n       * @description\n       * Write an information message\n       */\n      info: consoleLog('info'),\n\n      /**\n       * @ngdoc method\n       * @name $log#warn\n       *\n       * @description\n       * Write a warning message\n       */\n      warn: consoleLog('warn'),\n\n      /**\n       * @ngdoc method\n       * @name $log#error\n       *\n       * @description\n       * Write an error message\n       */\n      error: consoleLog('error'),\n\n      /**\n       * @ngdoc method\n       * @name $log#debug\n       *\n       * @description\n       * Write a debug message\n       */\n      debug: (function() {\n        var fn = consoleLog('debug');\n\n        return function() {\n          if (debug) {\n            fn.apply(self, arguments);\n          }\n        };\n      })()\n    };\n\n    function formatError(arg) {\n      if (arg instanceof Error) {\n        if (arg.stack) {\n          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)\n              ? 'Error: ' + arg.message + '\\n' + arg.stack\n              : arg.stack;\n        } else if (arg.sourceURL) {\n          arg = arg.message + '\\n' + arg.sourceURL + ':' + arg.line;\n        }\n      }\n      return arg;\n    }\n\n    function consoleLog(type) {\n      var console = $window.console || {},\n          logFn = console[type] || console.log || noop,\n          hasApply = false;\n\n      // Note: reading logFn.apply throws an error in IE11 in IE8 document mode.\n      // The reason behind this is that console.log has type \"object\" in IE8...\n      try {\n        hasApply = !!logFn.apply;\n      } catch (e) { /* empty */ }\n\n      if (hasApply) {\n        return function() {\n          var args = [];\n          forEach(arguments, function(arg) {\n            args.push(formatError(arg));\n          });\n          return logFn.apply(console, args);\n        };\n      }\n\n      // we are IE which either doesn't have window.console => this is noop and we do nothing,\n      // or we are IE where console.log doesn't have apply so we log at least first 2 args\n      return function(arg1, arg2) {\n        logFn(arg1, arg2 == null ? '' : arg2);\n      };\n    }\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $parseMinErr = minErr('$parse');\n\nvar ARRAY_CTOR = [].constructor;\nvar BOOLEAN_CTOR = (false).constructor;\nvar FUNCTION_CTOR = Function.constructor;\nvar NUMBER_CTOR = (0).constructor;\nvar OBJECT_CTOR = {}.constructor;\nvar STRING_CTOR = ''.constructor;\nvar ARRAY_CTOR_PROTO = ARRAY_CTOR.prototype;\nvar BOOLEAN_CTOR_PROTO = BOOLEAN_CTOR.prototype;\nvar FUNCTION_CTOR_PROTO = FUNCTION_CTOR.prototype;\nvar NUMBER_CTOR_PROTO = NUMBER_CTOR.prototype;\nvar OBJECT_CTOR_PROTO = OBJECT_CTOR.prototype;\nvar STRING_CTOR_PROTO = STRING_CTOR.prototype;\n\nvar CALL = FUNCTION_CTOR_PROTO.call;\nvar APPLY = FUNCTION_CTOR_PROTO.apply;\nvar BIND = FUNCTION_CTOR_PROTO.bind;\n\nvar objectValueOf = OBJECT_CTOR_PROTO.valueOf;\n\n// Sandboxing Angular Expressions\n// ------------------------------\n// Angular expressions are generally considered safe because these expressions only have direct\n// access to `$scope` and locals. However, one can obtain the ability to execute arbitrary JS code by\n// obtaining a reference to native JS functions such as the Function constructor.\n//\n// As an example, consider the following Angular expression:\n//\n//   {}.toString.constructor('alert(\"evil JS code\")')\n//\n// This sandboxing technique is not perfect and doesn't aim to be. The goal is to prevent exploits\n// against the expression language, but not to prevent exploits that were enabled by exposing\n// sensitive JavaScript or browser APIs on Scope. Exposing such objects on a Scope is never a good\n// practice and therefore we are not even trying to protect against interaction with an object\n// explicitly exposed in this way.\n//\n// In general, it is not possible to access a Window object from an angular expression unless a\n// window or some DOM object that has a reference to window is published onto a Scope.\n// Similarly we prevent invocations of function known to be dangerous, as well as assignments to\n// native objects.\n//\n// See https://docs.angularjs.org/guide/security\n\n\nfunction ensureSafeMemberName(name, fullExpression) {\n  if (name === '__defineGetter__' || name === '__defineSetter__'\n      || name === '__lookupGetter__' || name === '__lookupSetter__'\n      || name === '__proto__') {\n    throw $parseMinErr('isecfld',\n        'Attempting to access a disallowed field in Angular expressions! '\n        + 'Expression: {0}', fullExpression);\n  }\n  return name;\n}\n\nfunction getStringValue(name) {\n  // Property names must be strings. This means that non-string objects cannot be used\n  // as keys in an object. Any non-string object, including a number, is typecasted\n  // into a string via the toString method.\n  // -- MDN, https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Property_accessors#Property_names\n  //\n  // So, to ensure that we are checking the same `name` that JavaScript would use, we cast it\n  // to a string. It's not always possible. If `name` is an object and its `toString` method is\n  // 'broken' (doesn't return a string, isn't a function, etc.), an error will be thrown:\n  //\n  // TypeError: Cannot convert object to primitive value\n  //\n  // For performance reasons, we don't catch this error here and allow it to propagate up the call\n  // stack. Note that you'll get the same error in JavaScript if you try to access a property using\n  // such a 'broken' object as a key.\n  return name + '';\n}\n\nfunction ensureSafeObject(obj, fullExpression) {\n  // nifty check if obj is Function that is fast and works across iframes and other contexts\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n          'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isWindow(obj)\n        obj.window === obj) {\n      throw $parseMinErr('isecwindow',\n          'Referencing the Window in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// isElement(obj)\n        obj.children && (obj.nodeName || (obj.prop && obj.attr && obj.find))) {\n      throw $parseMinErr('isecdom',\n          'Referencing DOM nodes in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    } else if (// block Object so that we can't get hold of dangerous Object.* methods\n        obj === Object) {\n      throw $parseMinErr('isecobj',\n          'Referencing Object in Angular expressions is disallowed! Expression: {0}',\n          fullExpression);\n    }\n  }\n  return obj;\n}\n\nfunction ensureSafeFunction(obj, fullExpression) {\n  if (obj) {\n    if (obj.constructor === obj) {\n      throw $parseMinErr('isecfn',\n        'Referencing Function in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    } else if (obj === CALL || obj === APPLY || obj === BIND) {\n      throw $parseMinErr('isecff',\n        'Referencing call, apply or bind in Angular expressions is disallowed! Expression: {0}',\n        fullExpression);\n    }\n  }\n}\n\nfunction ensureSafeAssignContext(obj, fullExpression) {\n  if (obj) {\n    if (obj === ARRAY_CTOR ||\n        obj === BOOLEAN_CTOR ||\n        obj === FUNCTION_CTOR ||\n        obj === NUMBER_CTOR ||\n        obj === OBJECT_CTOR ||\n        obj === STRING_CTOR ||\n        obj === ARRAY_CTOR_PROTO ||\n        obj === BOOLEAN_CTOR_PROTO ||\n        obj === FUNCTION_CTOR_PROTO ||\n        obj === NUMBER_CTOR_PROTO ||\n        obj === OBJECT_CTOR_PROTO ||\n        obj === STRING_CTOR_PROTO) {\n      throw $parseMinErr('isecaf',\n        'Assigning to a constructor or its prototype is disallowed! Expression: {0}',\n        fullExpression);\n    }\n  }\n}\n\nvar OPERATORS = createMap();\nforEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; });\nvar ESCAPE = {'n':'\\n', 'f':'\\f', 'r':'\\r', 't':'\\t', 'v':'\\v', '\\'':'\\'', '\"':'\"'};\n\n\n/////////////////////////////////////////\n\n\n/**\n * @constructor\n */\nvar Lexer = function Lexer(options) {\n  this.options = options;\n};\n\nLexer.prototype = {\n  constructor: Lexer,\n\n  lex: function(text) {\n    this.text = text;\n    this.index = 0;\n    this.tokens = [];\n\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (ch === '\"' || ch === '\\'') {\n        this.readString(ch);\n      } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) {\n        this.readNumber();\n      } else if (this.isIdentifierStart(this.peekMultichar())) {\n        this.readIdent();\n      } else if (this.is(ch, '(){}[].,;:?')) {\n        this.tokens.push({index: this.index, text: ch});\n        this.index++;\n      } else if (this.isWhitespace(ch)) {\n        this.index++;\n      } else {\n        var ch2 = ch + this.peek();\n        var ch3 = ch2 + this.peek(2);\n        var op1 = OPERATORS[ch];\n        var op2 = OPERATORS[ch2];\n        var op3 = OPERATORS[ch3];\n        if (op1 || op2 || op3) {\n          var token = op3 ? ch3 : (op2 ? ch2 : ch);\n          this.tokens.push({index: this.index, text: token, operator: true});\n          this.index += token.length;\n        } else {\n          this.throwError('Unexpected next character ', this.index, this.index + 1);\n        }\n      }\n    }\n    return this.tokens;\n  },\n\n  is: function(ch, chars) {\n    return chars.indexOf(ch) !== -1;\n  },\n\n  peek: function(i) {\n    var num = i || 1;\n    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;\n  },\n\n  isNumber: function(ch) {\n    return ('0' <= ch && ch <= '9') && typeof ch === 'string';\n  },\n\n  isWhitespace: function(ch) {\n    // IE treats non-breaking space as \\u00A0\n    return (ch === ' ' || ch === '\\r' || ch === '\\t' ||\n            ch === '\\n' || ch === '\\v' || ch === '\\u00A0');\n  },\n\n  isIdentifierStart: function(ch) {\n    return this.options.isIdentifierStart ?\n        this.options.isIdentifierStart(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierStart(ch);\n  },\n\n  isValidIdentifierStart: function(ch) {\n    return ('a' <= ch && ch <= 'z' ||\n            'A' <= ch && ch <= 'Z' ||\n            '_' === ch || ch === '$');\n  },\n\n  isIdentifierContinue: function(ch) {\n    return this.options.isIdentifierContinue ?\n        this.options.isIdentifierContinue(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierContinue(ch);\n  },\n\n  isValidIdentifierContinue: function(ch, cp) {\n    return this.isValidIdentifierStart(ch, cp) || this.isNumber(ch);\n  },\n\n  codePointAt: function(ch) {\n    if (ch.length === 1) return ch.charCodeAt(0);\n    // eslint-disable-next-line no-bitwise\n    return (ch.charCodeAt(0) << 10) + ch.charCodeAt(1) - 0x35FDC00;\n  },\n\n  peekMultichar: function() {\n    var ch = this.text.charAt(this.index);\n    var peek = this.peek();\n    if (!peek) {\n      return ch;\n    }\n    var cp1 = ch.charCodeAt(0);\n    var cp2 = peek.charCodeAt(0);\n    if (cp1 >= 0xD800 && cp1 <= 0xDBFF && cp2 >= 0xDC00 && cp2 <= 0xDFFF) {\n      return ch + peek;\n    }\n    return ch;\n  },\n\n  isExpOperator: function(ch) {\n    return (ch === '-' || ch === '+' || this.isNumber(ch));\n  },\n\n  throwError: function(error, start, end) {\n    end = end || this.index;\n    var colStr = (isDefined(start)\n            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'\n            : ' ' + end);\n    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',\n        error, colStr, this.text);\n  },\n\n  readNumber: function() {\n    var number = '';\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = lowercase(this.text.charAt(this.index));\n      if (ch === '.' || this.isNumber(ch)) {\n        number += ch;\n      } else {\n        var peekCh = this.peek();\n        if (ch === 'e' && this.isExpOperator(peekCh)) {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            peekCh && this.isNumber(peekCh) &&\n            number.charAt(number.length - 1) === 'e') {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            (!peekCh || !this.isNumber(peekCh)) &&\n            number.charAt(number.length - 1) === 'e') {\n          this.throwError('Invalid exponent');\n        } else {\n          break;\n        }\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: number,\n      constant: true,\n      value: Number(number)\n    });\n  },\n\n  readIdent: function() {\n    var start = this.index;\n    this.index += this.peekMultichar().length;\n    while (this.index < this.text.length) {\n      var ch = this.peekMultichar();\n      if (!this.isIdentifierContinue(ch)) {\n        break;\n      }\n      this.index += ch.length;\n    }\n    this.tokens.push({\n      index: start,\n      text: this.text.slice(start, this.index),\n      identifier: true\n    });\n  },\n\n  readString: function(quote) {\n    var start = this.index;\n    this.index++;\n    var string = '';\n    var rawString = quote;\n    var escape = false;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      rawString += ch;\n      if (escape) {\n        if (ch === 'u') {\n          var hex = this.text.substring(this.index + 1, this.index + 5);\n          if (!hex.match(/[\\da-f]{4}/i)) {\n            this.throwError('Invalid unicode escape [\\\\u' + hex + ']');\n          }\n          this.index += 4;\n          string += String.fromCharCode(parseInt(hex, 16));\n        } else {\n          var rep = ESCAPE[ch];\n          string = string + (rep || ch);\n        }\n        escape = false;\n      } else if (ch === '\\\\') {\n        escape = true;\n      } else if (ch === quote) {\n        this.index++;\n        this.tokens.push({\n          index: start,\n          text: rawString,\n          constant: true,\n          value: string\n        });\n        return;\n      } else {\n        string += ch;\n      }\n      this.index++;\n    }\n    this.throwError('Unterminated quote', start);\n  }\n};\n\nvar AST = function AST(lexer, options) {\n  this.lexer = lexer;\n  this.options = options;\n};\n\nAST.Program = 'Program';\nAST.ExpressionStatement = 'ExpressionStatement';\nAST.AssignmentExpression = 'AssignmentExpression';\nAST.ConditionalExpression = 'ConditionalExpression';\nAST.LogicalExpression = 'LogicalExpression';\nAST.BinaryExpression = 'BinaryExpression';\nAST.UnaryExpression = 'UnaryExpression';\nAST.CallExpression = 'CallExpression';\nAST.MemberExpression = 'MemberExpression';\nAST.Identifier = 'Identifier';\nAST.Literal = 'Literal';\nAST.ArrayExpression = 'ArrayExpression';\nAST.Property = 'Property';\nAST.ObjectExpression = 'ObjectExpression';\nAST.ThisExpression = 'ThisExpression';\nAST.LocalsExpression = 'LocalsExpression';\n\n// Internal use only\nAST.NGValueParameter = 'NGValueParameter';\n\nAST.prototype = {\n  ast: function(text) {\n    this.text = text;\n    this.tokens = this.lexer.lex(text);\n\n    var value = this.program();\n\n    if (this.tokens.length !== 0) {\n      this.throwError('is an unexpected token', this.tokens[0]);\n    }\n\n    return value;\n  },\n\n  program: function() {\n    var body = [];\n    while (true) {\n      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))\n        body.push(this.expressionStatement());\n      if (!this.expect(';')) {\n        return { type: AST.Program, body: body};\n      }\n    }\n  },\n\n  expressionStatement: function() {\n    return { type: AST.ExpressionStatement, expression: this.filterChain() };\n  },\n\n  filterChain: function() {\n    var left = this.expression();\n    while (this.expect('|')) {\n      left = this.filter(left);\n    }\n    return left;\n  },\n\n  expression: function() {\n    return this.assignment();\n  },\n\n  assignment: function() {\n    var result = this.ternary();\n    if (this.expect('=')) {\n      if (!isAssignable(result)) {\n        throw $parseMinErr('lval', 'Trying to assign a value to a non l-value');\n      }\n\n      result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='};\n    }\n    return result;\n  },\n\n  ternary: function() {\n    var test = this.logicalOR();\n    var alternate;\n    var consequent;\n    if (this.expect('?')) {\n      alternate = this.expression();\n      if (this.consume(':')) {\n        consequent = this.expression();\n        return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent};\n      }\n    }\n    return test;\n  },\n\n  logicalOR: function() {\n    var left = this.logicalAND();\n    while (this.expect('||')) {\n      left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() };\n    }\n    return left;\n  },\n\n  logicalAND: function() {\n    var left = this.equality();\n    while (this.expect('&&')) {\n      left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()};\n    }\n    return left;\n  },\n\n  equality: function() {\n    var left = this.relational();\n    var token;\n    while ((token = this.expect('==','!=','===','!=='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() };\n    }\n    return left;\n  },\n\n  relational: function() {\n    var left = this.additive();\n    var token;\n    while ((token = this.expect('<', '>', '<=', '>='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() };\n    }\n    return left;\n  },\n\n  additive: function() {\n    var left = this.multiplicative();\n    var token;\n    while ((token = this.expect('+','-'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() };\n    }\n    return left;\n  },\n\n  multiplicative: function() {\n    var left = this.unary();\n    var token;\n    while ((token = this.expect('*','/','%'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() };\n    }\n    return left;\n  },\n\n  unary: function() {\n    var token;\n    if ((token = this.expect('+', '-', '!'))) {\n      return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() };\n    } else {\n      return this.primary();\n    }\n  },\n\n  primary: function() {\n    var primary;\n    if (this.expect('(')) {\n      primary = this.filterChain();\n      this.consume(')');\n    } else if (this.expect('[')) {\n      primary = this.arrayDeclaration();\n    } else if (this.expect('{')) {\n      primary = this.object();\n    } else if (this.selfReferential.hasOwnProperty(this.peek().text)) {\n      primary = copy(this.selfReferential[this.consume().text]);\n    } else if (this.options.literals.hasOwnProperty(this.peek().text)) {\n      primary = { type: AST.Literal, value: this.options.literals[this.consume().text]};\n    } else if (this.peek().identifier) {\n      primary = this.identifier();\n    } else if (this.peek().constant) {\n      primary = this.constant();\n    } else {\n      this.throwError('not a primary expression', this.peek());\n    }\n\n    var next;\n    while ((next = this.expect('(', '[', '.'))) {\n      if (next.text === '(') {\n        primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() };\n        this.consume(')');\n      } else if (next.text === '[') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true };\n        this.consume(']');\n      } else if (next.text === '.') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false };\n      } else {\n        this.throwError('IMPOSSIBLE');\n      }\n    }\n    return primary;\n  },\n\n  filter: function(baseExpression) {\n    var args = [baseExpression];\n    var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true};\n\n    while (this.expect(':')) {\n      args.push(this.expression());\n    }\n\n    return result;\n  },\n\n  parseArguments: function() {\n    var args = [];\n    if (this.peekToken().text !== ')') {\n      do {\n        args.push(this.filterChain());\n      } while (this.expect(','));\n    }\n    return args;\n  },\n\n  identifier: function() {\n    var token = this.consume();\n    if (!token.identifier) {\n      this.throwError('is not a valid identifier', token);\n    }\n    return { type: AST.Identifier, name: token.text };\n  },\n\n  constant: function() {\n    // TODO check that it is a constant\n    return { type: AST.Literal, value: this.consume().value };\n  },\n\n  arrayDeclaration: function() {\n    var elements = [];\n    if (this.peekToken().text !== ']') {\n      do {\n        if (this.peek(']')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        elements.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(']');\n\n    return { type: AST.ArrayExpression, elements: elements };\n  },\n\n  object: function() {\n    var properties = [], property;\n    if (this.peekToken().text !== '}') {\n      do {\n        if (this.peek('}')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        property = {type: AST.Property, kind: 'init'};\n        if (this.peek().constant) {\n          property.key = this.constant();\n          property.computed = false;\n          this.consume(':');\n          property.value = this.expression();\n        } else if (this.peek().identifier) {\n          property.key = this.identifier();\n          property.computed = false;\n          if (this.peek(':')) {\n            this.consume(':');\n            property.value = this.expression();\n          } else {\n            property.value = property.key;\n          }\n        } else if (this.peek('[')) {\n          this.consume('[');\n          property.key = this.expression();\n          this.consume(']');\n          property.computed = true;\n          this.consume(':');\n          property.value = this.expression();\n        } else {\n          this.throwError('invalid key', this.peek());\n        }\n        properties.push(property);\n      } while (this.expect(','));\n    }\n    this.consume('}');\n\n    return {type: AST.ObjectExpression, properties: properties };\n  },\n\n  throwError: function(msg, token) {\n    throw $parseMinErr('syntax',\n        'Syntax Error: Token \\'{0}\\' {1} at column {2} of the expression [{3}] starting at [{4}].',\n          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));\n  },\n\n  consume: function(e1) {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n\n    var token = this.expect(e1);\n    if (!token) {\n      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());\n    }\n    return token;\n  },\n\n  peekToken: function() {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n    return this.tokens[0];\n  },\n\n  peek: function(e1, e2, e3, e4) {\n    return this.peekAhead(0, e1, e2, e3, e4);\n  },\n\n  peekAhead: function(i, e1, e2, e3, e4) {\n    if (this.tokens.length > i) {\n      var token = this.tokens[i];\n      var t = token.text;\n      if (t === e1 || t === e2 || t === e3 || t === e4 ||\n          (!e1 && !e2 && !e3 && !e4)) {\n        return token;\n      }\n    }\n    return false;\n  },\n\n  expect: function(e1, e2, e3, e4) {\n    var token = this.peek(e1, e2, e3, e4);\n    if (token) {\n      this.tokens.shift();\n      return token;\n    }\n    return false;\n  },\n\n  selfReferential: {\n    'this': {type: AST.ThisExpression },\n    '$locals': {type: AST.LocalsExpression }\n  }\n};\n\nfunction ifDefined(v, d) {\n  return typeof v !== 'undefined' ? v : d;\n}\n\nfunction plusFn(l, r) {\n  if (typeof l === 'undefined') return r;\n  if (typeof r === 'undefined') return l;\n  return l + r;\n}\n\nfunction isStateless($filter, filterName) {\n  var fn = $filter(filterName);\n  return !fn.$stateful;\n}\n\nfunction findConstantAndWatchExpressions(ast, $filter) {\n  var allConstants;\n  var argsToWatch;\n  var isStatelessFilter;\n  switch (ast.type) {\n  case AST.Program:\n    allConstants = true;\n    forEach(ast.body, function(expr) {\n      findConstantAndWatchExpressions(expr.expression, $filter);\n      allConstants = allConstants && expr.expression.constant;\n    });\n    ast.constant = allConstants;\n    break;\n  case AST.Literal:\n    ast.constant = true;\n    ast.toWatch = [];\n    break;\n  case AST.UnaryExpression:\n    findConstantAndWatchExpressions(ast.argument, $filter);\n    ast.constant = ast.argument.constant;\n    ast.toWatch = ast.argument.toWatch;\n    break;\n  case AST.BinaryExpression:\n    findConstantAndWatchExpressions(ast.left, $filter);\n    findConstantAndWatchExpressions(ast.right, $filter);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch);\n    break;\n  case AST.LogicalExpression:\n    findConstantAndWatchExpressions(ast.left, $filter);\n    findConstantAndWatchExpressions(ast.right, $filter);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.ConditionalExpression:\n    findConstantAndWatchExpressions(ast.test, $filter);\n    findConstantAndWatchExpressions(ast.alternate, $filter);\n    findConstantAndWatchExpressions(ast.consequent, $filter);\n    ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.Identifier:\n    ast.constant = false;\n    ast.toWatch = [ast];\n    break;\n  case AST.MemberExpression:\n    findConstantAndWatchExpressions(ast.object, $filter);\n    if (ast.computed) {\n      findConstantAndWatchExpressions(ast.property, $filter);\n    }\n    ast.constant = ast.object.constant && (!ast.computed || ast.property.constant);\n    ast.toWatch = [ast];\n    break;\n  case AST.CallExpression:\n    isStatelessFilter = ast.filter ? isStateless($filter, ast.callee.name) : false;\n    allConstants = isStatelessFilter;\n    argsToWatch = [];\n    forEach(ast.arguments, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter);\n      allConstants = allConstants && expr.constant;\n      if (!expr.constant) {\n        argsToWatch.push.apply(argsToWatch, expr.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = isStatelessFilter ? argsToWatch : [ast];\n    break;\n  case AST.AssignmentExpression:\n    findConstantAndWatchExpressions(ast.left, $filter);\n    findConstantAndWatchExpressions(ast.right, $filter);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = [ast];\n    break;\n  case AST.ArrayExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.elements, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter);\n      allConstants = allConstants && expr.constant;\n      if (!expr.constant) {\n        argsToWatch.push.apply(argsToWatch, expr.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ObjectExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.properties, function(property) {\n      findConstantAndWatchExpressions(property.value, $filter);\n      allConstants = allConstants && property.value.constant && !property.computed;\n      if (!property.value.constant) {\n        argsToWatch.push.apply(argsToWatch, property.value.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ThisExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  case AST.LocalsExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  }\n}\n\nfunction getInputs(body) {\n  if (body.length !== 1) return;\n  var lastExpression = body[0].expression;\n  var candidate = lastExpression.toWatch;\n  if (candidate.length !== 1) return candidate;\n  return candidate[0] !== lastExpression ? candidate : undefined;\n}\n\nfunction isAssignable(ast) {\n  return ast.type === AST.Identifier || ast.type === AST.MemberExpression;\n}\n\nfunction assignableAST(ast) {\n  if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) {\n    return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='};\n  }\n}\n\nfunction isLiteral(ast) {\n  return ast.body.length === 0 ||\n      ast.body.length === 1 && (\n      ast.body[0].expression.type === AST.Literal ||\n      ast.body[0].expression.type === AST.ArrayExpression ||\n      ast.body[0].expression.type === AST.ObjectExpression);\n}\n\nfunction isConstant(ast) {\n  return ast.constant;\n}\n\nfunction ASTCompiler(astBuilder, $filter) {\n  this.astBuilder = astBuilder;\n  this.$filter = $filter;\n}\n\nASTCompiler.prototype = {\n  compile: function(expression, expensiveChecks) {\n    var self = this;\n    var ast = this.astBuilder.ast(expression);\n    this.state = {\n      nextId: 0,\n      filters: {},\n      expensiveChecks: expensiveChecks,\n      fn: {vars: [], body: [], own: {}},\n      assign: {vars: [], body: [], own: {}},\n      inputs: []\n    };\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var extra = '';\n    var assignable;\n    this.stage = 'assign';\n    if ((assignable = assignableAST(ast))) {\n      this.state.computing = 'assign';\n      var result = this.nextId();\n      this.recurse(assignable, result);\n      this.return_(result);\n      extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l');\n    }\n    var toWatch = getInputs(ast.body);\n    self.stage = 'inputs';\n    forEach(toWatch, function(watch, key) {\n      var fnKey = 'fn' + key;\n      self.state[fnKey] = {vars: [], body: [], own: {}};\n      self.state.computing = fnKey;\n      var intoId = self.nextId();\n      self.recurse(watch, intoId);\n      self.return_(intoId);\n      self.state.inputs.push(fnKey);\n      watch.watchId = key;\n    });\n    this.state.computing = 'fn';\n    this.stage = 'main';\n    this.recurse(ast);\n    var fnString =\n      // The build and minification steps remove the string \"use strict\" from the code, but this is done using a regex.\n      // This is a workaround for this until we do a better job at only removing the prefix only when we should.\n      '\"' + this.USE + ' ' + this.STRICT + '\";\\n' +\n      this.filterPrefix() +\n      'var fn=' + this.generateFunction('fn', 's,l,a,i') +\n      extra +\n      this.watchFns() +\n      'return fn;';\n\n    // eslint-disable-next-line no-new-func\n    var fn = (new Function('$filter',\n        'ensureSafeMemberName',\n        'ensureSafeObject',\n        'ensureSafeFunction',\n        'getStringValue',\n        'ensureSafeAssignContext',\n        'ifDefined',\n        'plus',\n        'text',\n        fnString))(\n          this.$filter,\n          ensureSafeMemberName,\n          ensureSafeObject,\n          ensureSafeFunction,\n          getStringValue,\n          ensureSafeAssignContext,\n          ifDefined,\n          plusFn,\n          expression);\n    this.state = this.stage = undefined;\n    fn.literal = isLiteral(ast);\n    fn.constant = isConstant(ast);\n    return fn;\n  },\n\n  USE: 'use',\n\n  STRICT: 'strict',\n\n  watchFns: function() {\n    var result = [];\n    var fns = this.state.inputs;\n    var self = this;\n    forEach(fns, function(name) {\n      result.push('var ' + name + '=' + self.generateFunction(name, 's'));\n    });\n    if (fns.length) {\n      result.push('fn.inputs=[' + fns.join(',') + '];');\n    }\n    return result.join('');\n  },\n\n  generateFunction: function(name, params) {\n    return 'function(' + params + '){' +\n        this.varsPrefix(name) +\n        this.body(name) +\n        '};';\n  },\n\n  filterPrefix: function() {\n    var parts = [];\n    var self = this;\n    forEach(this.state.filters, function(id, filter) {\n      parts.push(id + '=$filter(' + self.escape(filter) + ')');\n    });\n    if (parts.length) return 'var ' + parts.join(',') + ';';\n    return '';\n  },\n\n  varsPrefix: function(section) {\n    return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : '';\n  },\n\n  body: function(section) {\n    return this.state[section].body.join('');\n  },\n\n  recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var left, right, self = this, args, expression, computed;\n    recursionFn = recursionFn || noop;\n    if (!skipWatchIdCheck && isDefined(ast.watchId)) {\n      intoId = intoId || this.nextId();\n      this.if_('i',\n        this.lazyAssign(intoId, this.computedMember('i', ast.watchId)),\n        this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true)\n      );\n      return;\n    }\n    switch (ast.type) {\n    case AST.Program:\n      forEach(ast.body, function(expression, pos) {\n        self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; });\n        if (pos !== ast.body.length - 1) {\n          self.current().body.push(right, ';');\n        } else {\n          self.return_(right);\n        }\n      });\n      break;\n    case AST.Literal:\n      expression = this.escape(ast.value);\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.UnaryExpression:\n      this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; });\n      expression = ast.operator + '(' + this.ifDefined(right, 0) + ')';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.BinaryExpression:\n      this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; });\n      this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; });\n      if (ast.operator === '+') {\n        expression = this.plus(left, right);\n      } else if (ast.operator === '-') {\n        expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0);\n      } else {\n        expression = '(' + left + ')' + ast.operator + '(' + right + ')';\n      }\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.LogicalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.left, intoId);\n      self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.ConditionalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.test, intoId);\n      self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.Identifier:\n      intoId = intoId || this.nextId();\n      if (nameId) {\n        nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s');\n        nameId.computed = false;\n        nameId.name = ast.name;\n      }\n      ensureSafeMemberName(ast.name);\n      self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)),\n        function() {\n          self.if_(self.stage === 'inputs' || 's', function() {\n            if (create && create !== 1) {\n              self.if_(\n                self.not(self.nonComputedMember('s', ast.name)),\n                self.lazyAssign(self.nonComputedMember('s', ast.name), '{}'));\n            }\n            self.assign(intoId, self.nonComputedMember('s', ast.name));\n          });\n        }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name))\n        );\n      if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.name)) {\n        self.addEnsureSafeObject(intoId);\n      }\n      recursionFn(intoId);\n      break;\n    case AST.MemberExpression:\n      left = nameId && (nameId.context = this.nextId()) || this.nextId();\n      intoId = intoId || this.nextId();\n      self.recurse(ast.object, left, undefined, function() {\n        self.if_(self.notNull(left), function() {\n          if (create && create !== 1) {\n            self.addEnsureSafeAssignContext(left);\n          }\n          if (ast.computed) {\n            right = self.nextId();\n            self.recurse(ast.property, right);\n            self.getStringValue(right);\n            self.addEnsureSafeMemberName(right);\n            if (create && create !== 1) {\n              self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}'));\n            }\n            expression = self.ensureSafeObject(self.computedMember(left, right));\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = true;\n              nameId.name = right;\n            }\n          } else {\n            ensureSafeMemberName(ast.property.name);\n            if (create && create !== 1) {\n              self.if_(self.not(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}'));\n            }\n            expression = self.nonComputedMember(left, ast.property.name);\n            if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.property.name)) {\n              expression = self.ensureSafeObject(expression);\n            }\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = false;\n              nameId.name = ast.property.name;\n            }\n          }\n        }, function() {\n          self.assign(intoId, 'undefined');\n        });\n        recursionFn(intoId);\n      }, !!create);\n      break;\n    case AST.CallExpression:\n      intoId = intoId || this.nextId();\n      if (ast.filter) {\n        right = self.filter(ast.callee.name);\n        args = [];\n        forEach(ast.arguments, function(expr) {\n          var argument = self.nextId();\n          self.recurse(expr, argument);\n          args.push(argument);\n        });\n        expression = right + '(' + args.join(',') + ')';\n        self.assign(intoId, expression);\n        recursionFn(intoId);\n      } else {\n        right = self.nextId();\n        left = {};\n        args = [];\n        self.recurse(ast.callee, right, left, function() {\n          self.if_(self.notNull(right), function() {\n            self.addEnsureSafeFunction(right);\n            forEach(ast.arguments, function(expr) {\n              self.recurse(expr, self.nextId(), undefined, function(argument) {\n                args.push(self.ensureSafeObject(argument));\n              });\n            });\n            if (left.name) {\n              if (!self.state.expensiveChecks) {\n                self.addEnsureSafeObject(left.context);\n              }\n              expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')';\n            } else {\n              expression = right + '(' + args.join(',') + ')';\n            }\n            expression = self.ensureSafeObject(expression);\n            self.assign(intoId, expression);\n          }, function() {\n            self.assign(intoId, 'undefined');\n          });\n          recursionFn(intoId);\n        });\n      }\n      break;\n    case AST.AssignmentExpression:\n      right = this.nextId();\n      left = {};\n      this.recurse(ast.left, undefined, left, function() {\n        self.if_(self.notNull(left.context), function() {\n          self.recurse(ast.right, right);\n          self.addEnsureSafeObject(self.member(left.context, left.name, left.computed));\n          self.addEnsureSafeAssignContext(left.context);\n          expression = self.member(left.context, left.name, left.computed) + ast.operator + right;\n          self.assign(intoId, expression);\n          recursionFn(intoId || expression);\n        });\n      }, 1);\n      break;\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        self.recurse(expr, self.nextId(), undefined, function(argument) {\n          args.push(argument);\n        });\n      });\n      expression = '[' + args.join(',') + ']';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.ObjectExpression:\n      args = [];\n      computed = false;\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          computed = true;\n        }\n      });\n      if (computed) {\n        intoId = intoId || this.nextId();\n        this.assign(intoId, '{}');\n        forEach(ast.properties, function(property) {\n          if (property.computed) {\n            left = self.nextId();\n            self.recurse(property.key, left);\n          } else {\n            left = property.key.type === AST.Identifier ?\n                       property.key.name :\n                       ('' + property.key.value);\n          }\n          right = self.nextId();\n          self.recurse(property.value, right);\n          self.assign(self.member(intoId, left, property.computed), right);\n        });\n      } else {\n        forEach(ast.properties, function(property) {\n          self.recurse(property.value, ast.constant ? undefined : self.nextId(), undefined, function(expr) {\n            args.push(self.escape(\n                property.key.type === AST.Identifier ? property.key.name :\n                  ('' + property.key.value)) +\n                ':' + expr);\n          });\n        });\n        expression = '{' + args.join(',') + '}';\n        this.assign(intoId, expression);\n      }\n      recursionFn(intoId || expression);\n      break;\n    case AST.ThisExpression:\n      this.assign(intoId, 's');\n      recursionFn('s');\n      break;\n    case AST.LocalsExpression:\n      this.assign(intoId, 'l');\n      recursionFn('l');\n      break;\n    case AST.NGValueParameter:\n      this.assign(intoId, 'v');\n      recursionFn('v');\n      break;\n    }\n  },\n\n  getHasOwnProperty: function(element, property) {\n    var key = element + '.' + property;\n    var own = this.current().own;\n    if (!own.hasOwnProperty(key)) {\n      own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')');\n    }\n    return own[key];\n  },\n\n  assign: function(id, value) {\n    if (!id) return;\n    this.current().body.push(id, '=', value, ';');\n    return id;\n  },\n\n  filter: function(filterName) {\n    if (!this.state.filters.hasOwnProperty(filterName)) {\n      this.state.filters[filterName] = this.nextId(true);\n    }\n    return this.state.filters[filterName];\n  },\n\n  ifDefined: function(id, defaultValue) {\n    return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')';\n  },\n\n  plus: function(left, right) {\n    return 'plus(' + left + ',' + right + ')';\n  },\n\n  return_: function(id) {\n    this.current().body.push('return ', id, ';');\n  },\n\n  if_: function(test, alternate, consequent) {\n    if (test === true) {\n      alternate();\n    } else {\n      var body = this.current().body;\n      body.push('if(', test, '){');\n      alternate();\n      body.push('}');\n      if (consequent) {\n        body.push('else{');\n        consequent();\n        body.push('}');\n      }\n    }\n  },\n\n  not: function(expression) {\n    return '!(' + expression + ')';\n  },\n\n  notNull: function(expression) {\n    return expression + '!=null';\n  },\n\n  nonComputedMember: function(left, right) {\n    var SAFE_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]*$/;\n    var UNSAFE_CHARACTERS = /[^$_a-zA-Z0-9]/g;\n    if (SAFE_IDENTIFIER.test(right)) {\n      return left + '.' + right;\n    } else {\n      return left  + '[\"' + right.replace(UNSAFE_CHARACTERS, this.stringEscapeFn) + '\"]';\n    }\n  },\n\n  computedMember: function(left, right) {\n    return left + '[' + right + ']';\n  },\n\n  member: function(left, right, computed) {\n    if (computed) return this.computedMember(left, right);\n    return this.nonComputedMember(left, right);\n  },\n\n  addEnsureSafeObject: function(item) {\n    this.current().body.push(this.ensureSafeObject(item), ';');\n  },\n\n  addEnsureSafeMemberName: function(item) {\n    this.current().body.push(this.ensureSafeMemberName(item), ';');\n  },\n\n  addEnsureSafeFunction: function(item) {\n    this.current().body.push(this.ensureSafeFunction(item), ';');\n  },\n\n  addEnsureSafeAssignContext: function(item) {\n    this.current().body.push(this.ensureSafeAssignContext(item), ';');\n  },\n\n  ensureSafeObject: function(item) {\n    return 'ensureSafeObject(' + item + ',text)';\n  },\n\n  ensureSafeMemberName: function(item) {\n    return 'ensureSafeMemberName(' + item + ',text)';\n  },\n\n  ensureSafeFunction: function(item) {\n    return 'ensureSafeFunction(' + item + ',text)';\n  },\n\n  getStringValue: function(item) {\n    this.assign(item, 'getStringValue(' + item + ')');\n  },\n\n  ensureSafeAssignContext: function(item) {\n    return 'ensureSafeAssignContext(' + item + ',text)';\n  },\n\n  lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var self = this;\n    return function() {\n      self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck);\n    };\n  },\n\n  lazyAssign: function(id, value) {\n    var self = this;\n    return function() {\n      self.assign(id, value);\n    };\n  },\n\n  stringEscapeRegex: /[^ a-zA-Z0-9]/g,\n\n  stringEscapeFn: function(c) {\n    return '\\\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);\n  },\n\n  escape: function(value) {\n    if (isString(value)) return '\\'' + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + '\\'';\n    if (isNumber(value)) return value.toString();\n    if (value === true) return 'true';\n    if (value === false) return 'false';\n    if (value === null) return 'null';\n    if (typeof value === 'undefined') return 'undefined';\n\n    throw $parseMinErr('esc', 'IMPOSSIBLE');\n  },\n\n  nextId: function(skip, init) {\n    var id = 'v' + (this.state.nextId++);\n    if (!skip) {\n      this.current().vars.push(id + (init ? '=' + init : ''));\n    }\n    return id;\n  },\n\n  current: function() {\n    return this.state[this.state.computing];\n  }\n};\n\n\nfunction ASTInterpreter(astBuilder, $filter) {\n  this.astBuilder = astBuilder;\n  this.$filter = $filter;\n}\n\nASTInterpreter.prototype = {\n  compile: function(expression, expensiveChecks) {\n    var self = this;\n    var ast = this.astBuilder.ast(expression);\n    this.expression = expression;\n    this.expensiveChecks = expensiveChecks;\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var assignable;\n    var assign;\n    if ((assignable = assignableAST(ast))) {\n      assign = this.recurse(assignable);\n    }\n    var toWatch = getInputs(ast.body);\n    var inputs;\n    if (toWatch) {\n      inputs = [];\n      forEach(toWatch, function(watch, key) {\n        var input = self.recurse(watch);\n        watch.input = input;\n        inputs.push(input);\n        watch.watchId = key;\n      });\n    }\n    var expressions = [];\n    forEach(ast.body, function(expression) {\n      expressions.push(self.recurse(expression.expression));\n    });\n    var fn = ast.body.length === 0 ? noop :\n             ast.body.length === 1 ? expressions[0] :\n             function(scope, locals) {\n               var lastValue;\n               forEach(expressions, function(exp) {\n                 lastValue = exp(scope, locals);\n               });\n               return lastValue;\n             };\n    if (assign) {\n      fn.assign = function(scope, value, locals) {\n        return assign(scope, locals, value);\n      };\n    }\n    if (inputs) {\n      fn.inputs = inputs;\n    }\n    fn.literal = isLiteral(ast);\n    fn.constant = isConstant(ast);\n    return fn;\n  },\n\n  recurse: function(ast, context, create) {\n    var left, right, self = this, args;\n    if (ast.input) {\n      return this.inputs(ast.input, ast.watchId);\n    }\n    switch (ast.type) {\n    case AST.Literal:\n      return this.value(ast.value, context);\n    case AST.UnaryExpression:\n      right = this.recurse(ast.argument);\n      return this['unary' + ast.operator](right, context);\n    case AST.BinaryExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.LogicalExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.ConditionalExpression:\n      return this['ternary?:'](\n        this.recurse(ast.test),\n        this.recurse(ast.alternate),\n        this.recurse(ast.consequent),\n        context\n      );\n    case AST.Identifier:\n      ensureSafeMemberName(ast.name, self.expression);\n      return self.identifier(ast.name,\n                             self.expensiveChecks || isPossiblyDangerousMemberName(ast.name),\n                             context, create, self.expression);\n    case AST.MemberExpression:\n      left = this.recurse(ast.object, false, !!create);\n      if (!ast.computed) {\n        ensureSafeMemberName(ast.property.name, self.expression);\n        right = ast.property.name;\n      }\n      if (ast.computed) right = this.recurse(ast.property);\n      return ast.computed ?\n        this.computedMember(left, right, context, create, self.expression) :\n        this.nonComputedMember(left, right, self.expensiveChecks, context, create, self.expression);\n    case AST.CallExpression:\n      args = [];\n      forEach(ast.arguments, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      if (ast.filter) right = this.$filter(ast.callee.name);\n      if (!ast.filter) right = this.recurse(ast.callee, true);\n      return ast.filter ?\n        function(scope, locals, assign, inputs) {\n          var values = [];\n          for (var i = 0; i < args.length; ++i) {\n            values.push(args[i](scope, locals, assign, inputs));\n          }\n          var value = right.apply(undefined, values, inputs);\n          return context ? {context: undefined, name: undefined, value: value} : value;\n        } :\n        function(scope, locals, assign, inputs) {\n          var rhs = right(scope, locals, assign, inputs);\n          var value;\n          if (rhs.value != null) {\n            ensureSafeObject(rhs.context, self.expression);\n            ensureSafeFunction(rhs.value, self.expression);\n            var values = [];\n            for (var i = 0; i < args.length; ++i) {\n              values.push(ensureSafeObject(args[i](scope, locals, assign, inputs), self.expression));\n            }\n            value = ensureSafeObject(rhs.value.apply(rhs.context, values), self.expression);\n          }\n          return context ? {value: value} : value;\n        };\n    case AST.AssignmentExpression:\n      left = this.recurse(ast.left, true, 1);\n      right = this.recurse(ast.right);\n      return function(scope, locals, assign, inputs) {\n        var lhs = left(scope, locals, assign, inputs);\n        var rhs = right(scope, locals, assign, inputs);\n        ensureSafeObject(lhs.value, self.expression);\n        ensureSafeAssignContext(lhs.context);\n        lhs.context[lhs.name] = rhs;\n        return context ? {value: rhs} : rhs;\n      };\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = [];\n        for (var i = 0; i < args.length; ++i) {\n          value.push(args[i](scope, locals, assign, inputs));\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ObjectExpression:\n      args = [];\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          args.push({key: self.recurse(property.key),\n                     computed: true,\n                     value: self.recurse(property.value)\n          });\n        } else {\n          args.push({key: property.key.type === AST.Identifier ?\n                          property.key.name :\n                          ('' + property.key.value),\n                     computed: false,\n                     value: self.recurse(property.value)\n          });\n        }\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = {};\n        for (var i = 0; i < args.length; ++i) {\n          if (args[i].computed) {\n            value[args[i].key(scope, locals, assign, inputs)] = args[i].value(scope, locals, assign, inputs);\n          } else {\n            value[args[i].key] = args[i].value(scope, locals, assign, inputs);\n          }\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ThisExpression:\n      return function(scope) {\n        return context ? {value: scope} : scope;\n      };\n    case AST.LocalsExpression:\n      return function(scope, locals) {\n        return context ? {value: locals} : locals;\n      };\n    case AST.NGValueParameter:\n      return function(scope, locals, assign) {\n        return context ? {value: assign} : assign;\n      };\n    }\n  },\n\n  'unary+': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = +arg;\n      } else {\n        arg = 0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary-': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = -arg;\n      } else {\n        arg = 0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary!': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = !argument(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary+': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = plusFn(lhs, rhs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary-': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary*': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary/': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary%': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary===': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary&&': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary||': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'ternary?:': function(test, alternate, consequent, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  value: function(value, context) {\n    return function() { return context ? {context: undefined, name: undefined, value: value} : value; };\n  },\n  identifier: function(name, expensiveChecks, context, create, expression) {\n    return function(scope, locals, assign, inputs) {\n      var base = locals && (name in locals) ? locals : scope;\n      if (create && create !== 1 && base && !(base[name])) {\n        base[name] = {};\n      }\n      var value = base ? base[name] : undefined;\n      if (expensiveChecks) {\n        ensureSafeObject(value, expression);\n      }\n      if (context) {\n        return {context: base, name: name, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  computedMember: function(left, right, context, create, expression) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs;\n      var value;\n      if (lhs != null) {\n        rhs = right(scope, locals, assign, inputs);\n        rhs = getStringValue(rhs);\n        ensureSafeMemberName(rhs, expression);\n        if (create && create !== 1) {\n          ensureSafeAssignContext(lhs);\n          if (lhs && !(lhs[rhs])) {\n            lhs[rhs] = {};\n          }\n        }\n        value = lhs[rhs];\n        ensureSafeObject(value, expression);\n      }\n      if (context) {\n        return {context: lhs, name: rhs, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  nonComputedMember: function(left, right, expensiveChecks, context, create, expression) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      if (create && create !== 1) {\n        ensureSafeAssignContext(lhs);\n        if (lhs && !(lhs[right])) {\n          lhs[right] = {};\n        }\n      }\n      var value = lhs != null ? lhs[right] : undefined;\n      if (expensiveChecks || isPossiblyDangerousMemberName(right)) {\n        ensureSafeObject(value, expression);\n      }\n      if (context) {\n        return {context: lhs, name: right, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  inputs: function(input, watchId) {\n    return function(scope, value, locals, inputs) {\n      if (inputs) return inputs[watchId];\n      return input(scope, value, locals);\n    };\n  }\n};\n\n/**\n * @constructor\n */\nvar Parser = function Parser(lexer, $filter, options) {\n  this.lexer = lexer;\n  this.$filter = $filter;\n  this.options = options;\n  this.ast = new AST(lexer, options);\n  this.astCompiler = options.csp ? new ASTInterpreter(this.ast, $filter) :\n                                   new ASTCompiler(this.ast, $filter);\n};\n\nParser.prototype = {\n  constructor: Parser,\n\n  parse: function(text) {\n    return this.astCompiler.compile(text, this.options.expensiveChecks);\n  }\n};\n\nfunction isPossiblyDangerousMemberName(name) {\n  return name === 'constructor';\n}\n\nfunction getValueOf(value) {\n  return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value);\n}\n\n///////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $parse\n * @kind function\n *\n * @description\n *\n * Converts Angular {@link guide/expression expression} into a function.\n *\n * ```js\n *   var getter = $parse('user.name');\n *   var setter = getter.assign;\n *   var context = {user:{name:'angular'}};\n *   var locals = {user:{name:'local'}};\n *\n *   expect(getter(context)).toEqual('angular');\n *   setter(context, 'newValue');\n *   expect(context.user.name).toEqual('newValue');\n *   expect(getter(context, locals)).toEqual('local');\n * ```\n *\n *\n * @param {string} expression String expression to compile.\n * @returns {function(context, locals)} a function which represents the compiled expression:\n *\n *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n *      are evaluated against (typically a scope object).\n *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n *      `context`.\n *\n *    The returned function also has the following properties:\n *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript\n *        literal.\n *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript\n *        constant literals.\n *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be\n *        set to a function to change its value on the given context.\n *\n */\n\n\n/**\n * @ngdoc provider\n * @name $parseProvider\n * @this\n *\n * @description\n * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}\n *  service.\n */\nfunction $ParseProvider() {\n  var cacheDefault = createMap();\n  var cacheExpensive = createMap();\n  var literals = {\n    'true': true,\n    'false': false,\n    'null': null,\n    'undefined': undefined\n  };\n  var identStart, identContinue;\n\n  /**\n   * @ngdoc method\n   * @name $parseProvider#addLiteral\n   * @description\n   *\n   * Configure $parse service to add literal values that will be present as literal at expressions.\n   *\n   * @param {string} literalName Token for the literal value. The literal name value must be a valid literal name.\n   * @param {*} literalValue Value for this literal. All literal values must be primitives or `undefined`.\n   *\n   **/\n  this.addLiteral = function(literalName, literalValue) {\n    literals[literalName] = literalValue;\n  };\n\n /**\n  * @ngdoc method\n  * @name $parseProvider#setIdentifierFns\n  *\n  * @description\n  *\n  * Allows defining the set of characters that are allowed in Angular expressions. The function\n  * `identifierStart` will get called to know if a given character is a valid character to be the\n  * first character for an identifier. The function `identifierContinue` will get called to know if\n  * a given character is a valid character to be a follow-up identifier character. The functions\n  * `identifierStart` and `identifierContinue` will receive as arguments the single character to be\n  * identifier and the character code point. These arguments will be `string` and `numeric`. Keep in\n  * mind that the `string` parameter can be two characters long depending on the character\n  * representation. It is expected for the function to return `true` or `false`, whether that\n  * character is allowed or not.\n  *\n  * Since this function will be called extensively, keep the implementation of these functions fast,\n  * as the performance of these functions have a direct impact on the expressions parsing speed.\n  *\n  * @param {function=} identifierStart The function that will decide whether the given character is\n  *   a valid identifier start character.\n  * @param {function=} identifierContinue The function that will decide whether the given character is\n  *   a valid identifier continue character.\n  */\n  this.setIdentifierFns = function(identifierStart, identifierContinue) {\n    identStart = identifierStart;\n    identContinue = identifierContinue;\n    return this;\n  };\n\n  this.$get = ['$filter', function($filter) {\n    var noUnsafeEval = csp().noUnsafeEval;\n    var $parseOptions = {\n          csp: noUnsafeEval,\n          expensiveChecks: false,\n          literals: copy(literals),\n          isIdentifierStart: isFunction(identStart) && identStart,\n          isIdentifierContinue: isFunction(identContinue) && identContinue\n        },\n        $parseOptionsExpensive = {\n          csp: noUnsafeEval,\n          expensiveChecks: true,\n          literals: copy(literals),\n          isIdentifierStart: isFunction(identStart) && identStart,\n          isIdentifierContinue: isFunction(identContinue) && identContinue\n        };\n    var runningChecksEnabled = false;\n\n    $parse.$$runningExpensiveChecks = function() {\n      return runningChecksEnabled;\n    };\n\n    return $parse;\n\n    function $parse(exp, interceptorFn, expensiveChecks) {\n      var parsedExpression, oneTime, cacheKey;\n\n      expensiveChecks = expensiveChecks || runningChecksEnabled;\n\n      switch (typeof exp) {\n        case 'string':\n          exp = exp.trim();\n          cacheKey = exp;\n\n          var cache = (expensiveChecks ? cacheExpensive : cacheDefault);\n          parsedExpression = cache[cacheKey];\n\n          if (!parsedExpression) {\n            if (exp.charAt(0) === ':' && exp.charAt(1) === ':') {\n              oneTime = true;\n              exp = exp.substring(2);\n            }\n            var parseOptions = expensiveChecks ? $parseOptionsExpensive : $parseOptions;\n            var lexer = new Lexer(parseOptions);\n            var parser = new Parser(lexer, $filter, parseOptions);\n            parsedExpression = parser.parse(exp);\n            if (parsedExpression.constant) {\n              parsedExpression.$$watchDelegate = constantWatchDelegate;\n            } else if (oneTime) {\n              parsedExpression.$$watchDelegate = parsedExpression.literal ?\n                  oneTimeLiteralWatchDelegate : oneTimeWatchDelegate;\n            } else if (parsedExpression.inputs) {\n              parsedExpression.$$watchDelegate = inputsWatchDelegate;\n            }\n            if (expensiveChecks) {\n              parsedExpression = expensiveChecksInterceptor(parsedExpression);\n            }\n            cache[cacheKey] = parsedExpression;\n          }\n          return addInterceptor(parsedExpression, interceptorFn);\n\n        case 'function':\n          return addInterceptor(exp, interceptorFn);\n\n        default:\n          return addInterceptor(noop, interceptorFn);\n      }\n    }\n\n    function expensiveChecksInterceptor(fn) {\n      if (!fn) return fn;\n      expensiveCheckFn.$$watchDelegate = fn.$$watchDelegate;\n      expensiveCheckFn.assign = expensiveChecksInterceptor(fn.assign);\n      expensiveCheckFn.constant = fn.constant;\n      expensiveCheckFn.literal = fn.literal;\n      for (var i = 0; fn.inputs && i < fn.inputs.length; ++i) {\n        fn.inputs[i] = expensiveChecksInterceptor(fn.inputs[i]);\n      }\n      expensiveCheckFn.inputs = fn.inputs;\n\n      return expensiveCheckFn;\n\n      function expensiveCheckFn(scope, locals, assign, inputs) {\n        var expensiveCheckOldValue = runningChecksEnabled;\n        runningChecksEnabled = true;\n        try {\n          return fn(scope, locals, assign, inputs);\n        } finally {\n          runningChecksEnabled = expensiveCheckOldValue;\n        }\n      }\n    }\n\n    function expressionInputDirtyCheck(newValue, oldValueOfValue) {\n\n      if (newValue == null || oldValueOfValue == null) { // null/undefined\n        return newValue === oldValueOfValue;\n      }\n\n      if (typeof newValue === 'object') {\n\n        // attempt to convert the value to a primitive type\n        // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can\n        //             be cheaply dirty-checked\n        newValue = getValueOf(newValue);\n\n        if (typeof newValue === 'object') {\n          // objects/arrays are not supported - deep-watching them would be too expensive\n          return false;\n        }\n\n        // fall-through to the primitive equality check\n      }\n\n      //Primitive or NaN\n      // eslint-disable-next-line no-self-compare\n      return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue);\n    }\n\n    function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var inputExpressions = parsedExpression.inputs;\n      var lastResult;\n\n      if (inputExpressions.length === 1) {\n        var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        inputExpressions = inputExpressions[0];\n        return scope.$watch(function expressionInputWatch(scope) {\n          var newInputValue = inputExpressions(scope);\n          if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf)) {\n            lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]);\n            oldInputValueOf = newInputValue && getValueOf(newInputValue);\n          }\n          return lastResult;\n        }, listener, objectEquality, prettyPrintExpression);\n      }\n\n      var oldInputValueOfValues = [];\n      var oldInputValues = [];\n      for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n        oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        oldInputValues[i] = null;\n      }\n\n      return scope.$watch(function expressionInputsWatch(scope) {\n        var changed = false;\n\n        for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n          var newInputValue = inputExpressions[i](scope);\n          if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i]))) {\n            oldInputValues[i] = newInputValue;\n            oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue);\n          }\n        }\n\n        if (changed) {\n          lastResult = parsedExpression(scope, undefined, undefined, oldInputValues);\n        }\n\n        return lastResult;\n      }, listener, objectEquality, prettyPrintExpression);\n    }\n\n    function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch, lastValue;\n      unwatch = scope.$watch(function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }, /** @this */ function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener.apply(this, arguments);\n        }\n        if (isDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isDefined(lastValue)) {\n              unwatch();\n            }\n          });\n        }\n      }, objectEquality);\n      return unwatch;\n    }\n\n    function oneTimeLiteralWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch, lastValue;\n      unwatch = scope.$watch(function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }, /** @this */ function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener.call(this, value, old, scope);\n        }\n        if (isAllDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isAllDefined(lastValue)) unwatch();\n          });\n        }\n      }, objectEquality);\n\n      return unwatch;\n\n      function isAllDefined(value) {\n        var allDefined = true;\n        forEach(value, function(val) {\n          if (!isDefined(val)) allDefined = false;\n        });\n        return allDefined;\n      }\n    }\n\n    function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch = scope.$watch(function constantWatch(scope) {\n        unwatch();\n        return parsedExpression(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    function addInterceptor(parsedExpression, interceptorFn) {\n      if (!interceptorFn) return parsedExpression;\n      var watchDelegate = parsedExpression.$$watchDelegate;\n      var useInputs = false;\n\n      var regularWatch =\n          watchDelegate !== oneTimeLiteralWatchDelegate &&\n          watchDelegate !== oneTimeWatchDelegate;\n\n      var fn = regularWatch ? function regularInterceptedExpression(scope, locals, assign, inputs) {\n        var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs);\n        return interceptorFn(value, scope, locals);\n      } : function oneTimeInterceptedExpression(scope, locals, assign, inputs) {\n        var value = parsedExpression(scope, locals, assign, inputs);\n        var result = interceptorFn(value, scope, locals);\n        // we only return the interceptor's result if the\n        // initial value is defined (for bind-once)\n        return isDefined(value) ? result : value;\n      };\n\n      // Propagate $$watchDelegates other then inputsWatchDelegate\n      if (parsedExpression.$$watchDelegate &&\n          parsedExpression.$$watchDelegate !== inputsWatchDelegate) {\n        fn.$$watchDelegate = parsedExpression.$$watchDelegate;\n      } else if (!interceptorFn.$stateful) {\n        // If there is an interceptor, but no watchDelegate then treat the interceptor like\n        // we treat filters - it is assumed to be a pure function unless flagged with $stateful\n        fn.$$watchDelegate = inputsWatchDelegate;\n        useInputs = !parsedExpression.inputs;\n        fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression];\n      }\n\n      return fn;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $q\n * @requires $rootScope\n * @this\n *\n * @description\n * A service that helps you run functions asynchronously, and use their return values (or exceptions)\n * when they are done processing.\n *\n * This is an implementation of promises/deferred objects inspired by\n * [Kris Kowal's Q](https://github.com/kriskowal/q).\n *\n * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred\n * implementations, and the other which resembles ES6 (ES2015) promises to some degree.\n *\n * # $q constructor\n *\n * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver`\n * function as the first argument. This is similar to the native Promise implementation from ES6,\n * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).\n *\n * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are\n * available yet.\n *\n * It can be used like so:\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     // perform some asynchronous operation, resolve or reject the promise when appropriate.\n *     return $q(function(resolve, reject) {\n *       setTimeout(function() {\n *         if (okToGreet(name)) {\n *           resolve('Hello, ' + name + '!');\n *         } else {\n *           reject('Greeting ' + name + ' is not allowed.');\n *         }\n *       }, 1000);\n *     });\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   });\n * ```\n *\n * Note: progress/notify callbacks are not currently supported via the ES6-style interface.\n *\n * Note: unlike ES6 behavior, an exception thrown in the constructor function will NOT implicitly reject the promise.\n *\n * However, the more traditional CommonJS-style usage is still available, and documented below.\n *\n * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an\n * interface for interacting with an object that represents the result of an action that is\n * performed asynchronously, and may or may not be finished at any given point in time.\n *\n * From the perspective of dealing with error handling, deferred and promise APIs are to\n * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     var deferred = $q.defer();\n *\n *     setTimeout(function() {\n *       deferred.notify('About to greet ' + name + '.');\n *\n *       if (okToGreet(name)) {\n *         deferred.resolve('Hello, ' + name + '!');\n *       } else {\n *         deferred.reject('Greeting ' + name + ' is not allowed.');\n *       }\n *     }, 1000);\n *\n *     return deferred.promise;\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   }, function(update) {\n *     alert('Got notification: ' + update);\n *   });\n * ```\n *\n * At first it might not be obvious why this extra complexity is worth the trouble. The payoff\n * comes in the way of guarantees that promise and deferred APIs make, see\n * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.\n *\n * Additionally the promise api allows for composition that is very hard to do with the\n * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.\n * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the\n * section on serial or parallel joining of promises.\n *\n * # The Deferred API\n *\n * A new instance of deferred is constructed by calling `$q.defer()`.\n *\n * The purpose of the deferred object is to expose the associated Promise instance as well as APIs\n * that can be used for signaling the successful or unsuccessful completion, as well as the status\n * of the task.\n *\n * **Methods**\n *\n * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection\n *   constructed via `$q.reject`, the promise will be rejected instead.\n * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to\n *   resolving it with a rejection constructed via `$q.reject`.\n * - `notify(value)` - provides updates on the status of the promise's execution. This may be called\n *   multiple times before the promise is either resolved or rejected.\n *\n * **Properties**\n *\n * - promise – `{Promise}` – promise object associated with this deferred.\n *\n *\n * # The Promise API\n *\n * A new promise instance is created when a deferred instance is created and can be retrieved by\n * calling `deferred.promise`.\n *\n * The purpose of the promise object is to allow for interested parties to get access to the result\n * of the deferred task when it completes.\n *\n * **Methods**\n *\n * - `then(successCallback, [errorCallback], [notifyCallback])` – regardless of when the promise was or\n *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously\n *   as soon as the result is available. The callbacks are called with a single argument: the result\n *   or rejection reason. Additionally, the notify callback may be called zero or more times to\n *   provide a progress indication, before the promise is resolved or rejected.\n *\n *   This method *returns a new promise* which is resolved or rejected via the return value of the\n *   `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved\n *   with the value which is resolved in that promise using\n *   [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)).\n *   It also notifies via the return value of the `notifyCallback` method. The promise cannot be\n *   resolved or rejected from the notifyCallback method. The errorCallback and notifyCallback\n *   arguments are optional.\n *\n * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`\n *\n * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise,\n *   but to do so without modifying the final value. This is useful to release resources or do some\n *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full\n *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for\n *   more information.\n *\n * # Chaining promises\n *\n * Because calling the `then` method of a promise returns a new derived promise, it is easily\n * possible to create a chain of promises:\n *\n * ```js\n *   promiseB = promiseA.then(function(result) {\n *     return result + 1;\n *   });\n *\n *   // promiseB will be resolved immediately after promiseA is resolved and its value\n *   // will be the result of promiseA incremented by 1\n * ```\n *\n * It is possible to create chains of any length and since a promise can be resolved with another\n * promise (which will defer its resolution further), it is possible to pause/defer resolution of\n * the promises at any point in the chain. This makes it possible to implement powerful APIs like\n * $http's response interceptors.\n *\n *\n * # Differences between Kris Kowal's Q and $q\n *\n *  There are two main differences:\n *\n * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation\n *   mechanism in angular, which means faster propagation of resolution or rejection into your\n *   models and avoiding unnecessary browser repaints, which would result in flickering UI.\n * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains\n *   all the important functionality needed for common async tasks.\n *\n * # Testing\n *\n *  ```js\n *    it('should simulate promise', inject(function($q, $rootScope) {\n *      var deferred = $q.defer();\n *      var promise = deferred.promise;\n *      var resolvedValue;\n *\n *      promise.then(function(value) { resolvedValue = value; });\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Simulate resolving of promise\n *      deferred.resolve(123);\n *      // Note that the 'then' function does not get called synchronously.\n *      // This is because we want the promise API to always be async, whether or not\n *      // it got called synchronously or asynchronously.\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Propagate promise resolution to 'then' functions using $apply().\n *      $rootScope.$apply();\n *      expect(resolvedValue).toEqual(123);\n *    }));\n *  ```\n *\n * @param {function(function, function)} resolver Function which is responsible for resolving or\n *   rejecting the newly created promise. The first parameter is a function which resolves the\n *   promise, the second parameter is a function which rejects the promise.\n *\n * @returns {Promise} The newly created promise.\n */\nfunction $QProvider() {\n\n  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $rootScope.$evalAsync(callback);\n    }, $exceptionHandler);\n  }];\n}\n\n/** @this */\nfunction $$QProvider() {\n  this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $browser.defer(callback);\n    }, $exceptionHandler);\n  }];\n}\n\n/**\n * Constructs a promise manager.\n *\n * @param {function(function)} nextTick Function for executing functions in the next turn.\n * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for\n *     debugging purposes.\n * @returns {object} Promise manager.\n */\nfunction qFactory(nextTick, exceptionHandler) {\n  var $qMinErr = minErr('$q', TypeError);\n\n  /**\n   * @ngdoc method\n   * @name ng.$q#defer\n   * @kind function\n   *\n   * @description\n   * Creates a `Deferred` object which represents a task which will finish in the future.\n   *\n   * @returns {Deferred} Returns a new instance of deferred.\n   */\n  function defer() {\n    var d = new Deferred();\n    //Necessary to support unbound execution :/\n    d.resolve = simpleBind(d, d.resolve);\n    d.reject = simpleBind(d, d.reject);\n    d.notify = simpleBind(d, d.notify);\n    return d;\n  }\n\n  function Promise() {\n    this.$$state = { status: 0 };\n  }\n\n  extend(Promise.prototype, {\n    then: function(onFulfilled, onRejected, progressBack) {\n      if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) {\n        return this;\n      }\n      var result = new Deferred();\n\n      this.$$state.pending = this.$$state.pending || [];\n      this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]);\n      if (this.$$state.status > 0) scheduleProcessQueue(this.$$state);\n\n      return result.promise;\n    },\n\n    'catch': function(callback) {\n      return this.then(null, callback);\n    },\n\n    'finally': function(callback, progressBack) {\n      return this.then(function(value) {\n        return handleCallback(value, resolve, callback);\n      }, function(error) {\n        return handleCallback(error, reject, callback);\n      }, progressBack);\n    }\n  });\n\n  //Faster, more basic than angular.bind http://jsperf.com/angular-bind-vs-custom-vs-native\n  function simpleBind(context, fn) {\n    return function(value) {\n      fn.call(context, value);\n    };\n  }\n\n  function processQueue(state) {\n    var fn, deferred, pending;\n\n    pending = state.pending;\n    state.processScheduled = false;\n    state.pending = undefined;\n    for (var i = 0, ii = pending.length; i < ii; ++i) {\n      deferred = pending[i][0];\n      fn = pending[i][state.status];\n      try {\n        if (isFunction(fn)) {\n          deferred.resolve(fn(state.value));\n        } else if (state.status === 1) {\n          deferred.resolve(state.value);\n        } else {\n          deferred.reject(state.value);\n        }\n      } catch (e) {\n        deferred.reject(e);\n        exceptionHandler(e);\n      }\n    }\n  }\n\n  function scheduleProcessQueue(state) {\n    if (state.processScheduled || !state.pending) return;\n    state.processScheduled = true;\n    nextTick(function() { processQueue(state); });\n  }\n\n  function Deferred() {\n    this.promise = new Promise();\n  }\n\n  extend(Deferred.prototype, {\n    resolve: function(val) {\n      if (this.promise.$$state.status) return;\n      if (val === this.promise) {\n        this.$$reject($qMinErr(\n          'qcycle',\n          'Expected promise to be resolved with value other than itself \\'{0}\\'',\n          val));\n      } else {\n        this.$$resolve(val);\n      }\n\n    },\n\n    $$resolve: function(val) {\n      var then;\n      var that = this;\n      var done = false;\n      try {\n        if ((isObject(val) || isFunction(val))) then = val && val.then;\n        if (isFunction(then)) {\n          this.promise.$$state.status = -1;\n          then.call(val, resolvePromise, rejectPromise, simpleBind(this, this.notify));\n        } else {\n          this.promise.$$state.value = val;\n          this.promise.$$state.status = 1;\n          scheduleProcessQueue(this.promise.$$state);\n        }\n      } catch (e) {\n        rejectPromise(e);\n        exceptionHandler(e);\n      }\n\n      function resolvePromise(val) {\n        if (done) return;\n        done = true;\n        that.$$resolve(val);\n      }\n      function rejectPromise(val) {\n        if (done) return;\n        done = true;\n        that.$$reject(val);\n      }\n    },\n\n    reject: function(reason) {\n      if (this.promise.$$state.status) return;\n      this.$$reject(reason);\n    },\n\n    $$reject: function(reason) {\n      this.promise.$$state.value = reason;\n      this.promise.$$state.status = 2;\n      scheduleProcessQueue(this.promise.$$state);\n    },\n\n    notify: function(progress) {\n      var callbacks = this.promise.$$state.pending;\n\n      if ((this.promise.$$state.status <= 0) && callbacks && callbacks.length) {\n        nextTick(function() {\n          var callback, result;\n          for (var i = 0, ii = callbacks.length; i < ii; i++) {\n            result = callbacks[i][0];\n            callback = callbacks[i][3];\n            try {\n              result.notify(isFunction(callback) ? callback(progress) : progress);\n            } catch (e) {\n              exceptionHandler(e);\n            }\n          }\n        });\n      }\n    }\n  });\n\n  /**\n   * @ngdoc method\n   * @name $q#reject\n   * @kind function\n   *\n   * @description\n   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be\n   * used to forward rejection in a chain of promises. If you are dealing with the last promise in\n   * a promise chain, you don't need to worry about it.\n   *\n   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of\n   * `reject` as the `throw` keyword in JavaScript. This also means that if you \"catch\" an error via\n   * a promise error callback and you want to forward the error to the promise derived from the\n   * current promise, you have to \"rethrow\" the error by returning a rejection constructed via\n   * `reject`.\n   *\n   * ```js\n   *   promiseB = promiseA.then(function(result) {\n   *     // success: do something and resolve promiseB\n   *     //          with the old or a new result\n   *     return result;\n   *   }, function(reason) {\n   *     // error: handle the error if possible and\n   *     //        resolve promiseB with newPromiseOrValue,\n   *     //        otherwise forward the rejection to promiseB\n   *     if (canHandle(reason)) {\n   *      // handle the error and recover\n   *      return newPromiseOrValue;\n   *     }\n   *     return $q.reject(reason);\n   *   });\n   * ```\n   *\n   * @param {*} reason Constant, message, exception or an object representing the rejection reason.\n   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.\n   */\n  function reject(reason) {\n    var result = new Deferred();\n    result.reject(reason);\n    return result.promise;\n  }\n\n  function handleCallback(value, resolver, callback) {\n    var callbackOutput = null;\n    try {\n      if (isFunction(callback)) callbackOutput = callback();\n    } catch (e) {\n      return reject(e);\n    }\n    if (isPromiseLike(callbackOutput)) {\n      return callbackOutput.then(function() {\n        return resolver(value);\n      }, reject);\n    } else {\n      return resolver(value);\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#when\n   * @kind function\n   *\n   * @description\n   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.\n   * This is useful when you are dealing with an object that might or might not be a promise, or if\n   * the promise comes from a source that can't be trusted.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n\n\n  function when(value, callback, errback, progressBack) {\n    var result = new Deferred();\n    result.resolve(value);\n    return result.promise.then(callback, errback, progressBack);\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#resolve\n   * @kind function\n   *\n   * @description\n   * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n  var resolve = when;\n\n  /**\n   * @ngdoc method\n   * @name $q#all\n   * @kind function\n   *\n   * @description\n   * Combines multiple promises into a single promise that is resolved when all of the input\n   * promises are resolved.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,\n   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.\n   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected\n   *   with the same rejection value.\n   */\n\n  function all(promises) {\n    var deferred = new Deferred(),\n        counter = 0,\n        results = isArray(promises) ? [] : {};\n\n    forEach(promises, function(promise, key) {\n      counter++;\n      when(promise).then(function(value) {\n        results[key] = value;\n        if (!(--counter)) deferred.resolve(results);\n      }, function(reason) {\n        deferred.reject(reason);\n      });\n    });\n\n    if (counter === 0) {\n      deferred.resolve(results);\n    }\n\n    return deferred.promise;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#race\n   * @kind function\n   *\n   * @description\n   * Returns a promise that resolves or rejects as soon as one of those promises\n   * resolves or rejects, with the value or reason from that promise.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} a promise that resolves or rejects as soon as one of the `promises`\n   * resolves or rejects, with the value or reason from that promise.\n   */\n\n  function race(promises) {\n    var deferred = defer();\n\n    forEach(promises, function(promise) {\n      when(promise).then(deferred.resolve, deferred.reject);\n    });\n\n    return deferred.promise;\n  }\n\n  function $Q(resolver) {\n    if (!isFunction(resolver)) {\n      throw $qMinErr('norslvr', 'Expected resolverFn, got \\'{0}\\'', resolver);\n    }\n\n    var deferred = new Deferred();\n\n    function resolveFn(value) {\n      deferred.resolve(value);\n    }\n\n    function rejectFn(reason) {\n      deferred.reject(reason);\n    }\n\n    resolver(resolveFn, rejectFn);\n\n    return deferred.promise;\n  }\n\n  // Let's make the instanceof operator work for promises, so that\n  // `new $q(fn) instanceof $q` would evaluate to true.\n  $Q.prototype = Promise.prototype;\n\n  $Q.defer = defer;\n  $Q.reject = reject;\n  $Q.when = when;\n  $Q.resolve = resolve;\n  $Q.all = all;\n  $Q.race = race;\n\n  return $Q;\n}\n\n/** @this */\nfunction $$RAFProvider() { //rAF\n  this.$get = ['$window', '$timeout', function($window, $timeout) {\n    var requestAnimationFrame = $window.requestAnimationFrame ||\n                                $window.webkitRequestAnimationFrame;\n\n    var cancelAnimationFrame = $window.cancelAnimationFrame ||\n                               $window.webkitCancelAnimationFrame ||\n                               $window.webkitCancelRequestAnimationFrame;\n\n    var rafSupported = !!requestAnimationFrame;\n    var raf = rafSupported\n      ? function(fn) {\n          var id = requestAnimationFrame(fn);\n          return function() {\n            cancelAnimationFrame(id);\n          };\n        }\n      : function(fn) {\n          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666\n          return function() {\n            $timeout.cancel(timer);\n          };\n        };\n\n    raf.supported = rafSupported;\n\n    return raf;\n  }];\n}\n\n/**\n * DESIGN NOTES\n *\n * The design decisions behind the scope are heavily favored for speed and memory consumption.\n *\n * The typical use of scope is to watch the expressions, which most of the time return the same\n * value as last time so we optimize the operation.\n *\n * Closures construction is expensive in terms of speed as well as memory:\n *   - No closures, instead use prototypical inheritance for API\n *   - Internal state needs to be stored on scope directly, which means that private state is\n *     exposed as $$____ properties\n *\n * Loop operations are optimized by using while(count--) { ... }\n *   - This means that in order to keep the same order of execution as addition we have to add\n *     items to the array at the beginning (unshift) instead of at the end (push)\n *\n * Child scopes are created and removed often\n *   - Using an array would be slow since inserts in the middle are expensive; so we use linked lists\n *\n * There are fewer watches than observers. This is why you don't want the observer to be implemented\n * in the same way as watch. Watch requires return of the initialization function which is expensive\n * to construct.\n */\n\n\n/**\n * @ngdoc provider\n * @name $rootScopeProvider\n * @description\n *\n * Provider for the $rootScope service.\n */\n\n/**\n * @ngdoc method\n * @name $rootScopeProvider#digestTtl\n * @description\n *\n * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and\n * assuming that the model is unstable.\n *\n * The current default is 10 iterations.\n *\n * In complex applications it's possible that the dependencies between `$watch`s will result in\n * several digest iterations. However if an application needs more than the default 10 digest\n * iterations for its model to stabilize then you should investigate what is causing the model to\n * continuously change during the digest.\n *\n * Increasing the TTL could have performance implications, so you should not change it without\n * proper justification.\n *\n * @param {number} limit The number of digest iterations.\n */\n\n\n/**\n * @ngdoc service\n * @name $rootScope\n * @this\n *\n * @description\n *\n * Every application has a single root {@link ng.$rootScope.Scope scope}.\n * All other scopes are descendant scopes of the root scope. Scopes provide separation\n * between the model and the view, via a mechanism for watching the model for changes.\n * They also provide event emission/broadcast and subscription facility. See the\n * {@link guide/scope developer guide on scopes}.\n */\nfunction $RootScopeProvider() {\n  var TTL = 10;\n  var $rootScopeMinErr = minErr('$rootScope');\n  var lastDirtyWatch = null;\n  var applyAsyncId = null;\n\n  this.digestTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n    }\n    return TTL;\n  };\n\n  function createChildScopeClass(parent) {\n    function ChildScope() {\n      this.$$watchers = this.$$nextSibling =\n          this.$$childHead = this.$$childTail = null;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$id = nextUid();\n      this.$$ChildScope = null;\n    }\n    ChildScope.prototype = parent;\n    return ChildScope;\n  }\n\n  this.$get = ['$exceptionHandler', '$parse', '$browser',\n      function($exceptionHandler, $parse, $browser) {\n\n    function destroyChildScope($event) {\n        $event.currentScope.$$destroyed = true;\n    }\n\n    function cleanUpScope($scope) {\n\n      if (msie === 9) {\n        // There is a memory leak in IE9 if all child scopes are not disconnected\n        // completely when a scope is destroyed. So this code will recurse up through\n        // all this scopes children\n        //\n        // See issue https://github.com/angular/angular.js/issues/10706\n        if ($scope.$$childHead) {\n          cleanUpScope($scope.$$childHead);\n        }\n        if ($scope.$$nextSibling) {\n          cleanUpScope($scope.$$nextSibling);\n        }\n      }\n\n      // The code below works around IE9 and V8's memory leaks\n      //\n      // See:\n      // - https://code.google.com/p/v8/issues/detail?id=2073#c26\n      // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909\n      // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451\n\n      $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead =\n          $scope.$$childTail = $scope.$root = $scope.$$watchers = null;\n    }\n\n    /**\n     * @ngdoc type\n     * @name $rootScope.Scope\n     *\n     * @description\n     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the\n     * {@link auto.$injector $injector}. Child scopes are created using the\n     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when\n     * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for\n     * an in-depth introduction and usage examples.\n     *\n     *\n     * # Inheritance\n     * A scope can inherit from a parent scope, as in this example:\n     * ```js\n         var parent = $rootScope;\n         var child = parent.$new();\n\n         parent.salutation = \"Hello\";\n         expect(child.salutation).toEqual('Hello');\n\n         child.salutation = \"Welcome\";\n         expect(child.salutation).toEqual('Welcome');\n         expect(parent.salutation).toEqual('Hello');\n     * ```\n     *\n     * When interacting with `Scope` in tests, additional helper methods are available on the\n     * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional\n     * details.\n     *\n     *\n     * @param {Object.<string, function()>=} providers Map of service factory which need to be\n     *                                       provided for the current scope. Defaults to {@link ng}.\n     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should\n     *                              append/override services provided by `providers`. This is handy\n     *                              when unit-testing and having the need to override a default\n     *                              service.\n     * @returns {Object} Newly created scope.\n     *\n     */\n    function Scope() {\n      this.$id = nextUid();\n      this.$$phase = this.$parent = this.$$watchers =\n                     this.$$nextSibling = this.$$prevSibling =\n                     this.$$childHead = this.$$childTail = null;\n      this.$root = this;\n      this.$$destroyed = false;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$$isolateBindings = null;\n    }\n\n    /**\n     * @ngdoc property\n     * @name $rootScope.Scope#$id\n     *\n     * @description\n     * Unique scope ID (monotonically increasing) useful for debugging.\n     */\n\n     /**\n      * @ngdoc property\n      * @name $rootScope.Scope#$parent\n      *\n      * @description\n      * Reference to the parent scope.\n      */\n\n      /**\n       * @ngdoc property\n       * @name $rootScope.Scope#$root\n       *\n       * @description\n       * Reference to the root scope.\n       */\n\n    Scope.prototype = {\n      constructor: Scope,\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$new\n       * @kind function\n       *\n       * @description\n       * Creates a new child {@link ng.$rootScope.Scope scope}.\n       *\n       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.\n       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.\n       *\n       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is\n       * desired for the scope and its child scopes to be permanently detached from the parent and\n       * thus stop participating in model change detection and listener notification by invoking.\n       *\n       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the\n       *         parent scope. The scope is isolated, as it can not see parent scope properties.\n       *         When creating widgets, it is useful for the widget to not accidentally read parent\n       *         state.\n       *\n       * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent`\n       *                              of the newly created scope. Defaults to `this` scope if not provided.\n       *                              This is used when creating a transclude scope to correctly place it\n       *                              in the scope hierarchy while maintaining the correct prototypical\n       *                              inheritance.\n       *\n       * @returns {Object} The newly created child scope.\n       *\n       */\n      $new: function(isolate, parent) {\n        var child;\n\n        parent = parent || this;\n\n        if (isolate) {\n          child = new Scope();\n          child.$root = this.$root;\n        } else {\n          // Only create a child scope class if somebody asks for one,\n          // but cache it to allow the VM to optimize lookups.\n          if (!this.$$ChildScope) {\n            this.$$ChildScope = createChildScopeClass(this);\n          }\n          child = new this.$$ChildScope();\n        }\n        child.$parent = parent;\n        child.$$prevSibling = parent.$$childTail;\n        if (parent.$$childHead) {\n          parent.$$childTail.$$nextSibling = child;\n          parent.$$childTail = child;\n        } else {\n          parent.$$childHead = parent.$$childTail = child;\n        }\n\n        // When the new scope is not isolated or we inherit from `this`, and\n        // the parent scope is destroyed, the property `$$destroyed` is inherited\n        // prototypically. In all other cases, this property needs to be set\n        // when the parent scope is destroyed.\n        // The listener needs to be added after the parent is set\n        if (isolate || parent !== this) child.$on('$destroy', destroyChildScope);\n\n        return child;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watch\n       * @kind function\n       *\n       * @description\n       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.\n       *\n       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest\n       *   $digest()} and should return the value that will be watched. (`watchExpression` should not change\n       *   its value when executed multiple times with the same input because it may be executed multiple\n       *   times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be\n       *   [idempotent](http://en.wikipedia.org/wiki/Idempotence).)\n       * - The `listener` is called only when the value from the current `watchExpression` and the\n       *   previous call to `watchExpression` are not equal (with the exception of the initial run,\n       *   see below). Inequality is determined according to reference inequality,\n       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)\n       *    via the `!==` Javascript operator, unless `objectEquality == true`\n       *   (see next point)\n       * - When `objectEquality == true`, inequality of the `watchExpression` is determined\n       *   according to the {@link angular.equals} function. To save the value of the object for\n       *   later comparison, the {@link angular.copy} function is used. This therefore means that\n       *   watching complex objects will have adverse memory and performance implications.\n       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.\n       *   This is achieved by rerunning the watchers until no changes are detected. The rerun\n       *   iteration limit is 10 to prevent an infinite loop deadlock.\n       *\n       *\n       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,\n       * you can register a `watchExpression` function with no `listener`. (Be prepared for\n       * multiple calls to your `watchExpression` because it will execute multiple times in a\n       * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.)\n       *\n       * After a watcher is registered with the scope, the `listener` fn is called asynchronously\n       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the\n       * watcher. In rare cases, this is undesirable because the listener is called when the result\n       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you\n       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the\n       * listener was called due to initialization.\n       *\n       *\n       *\n       * # Example\n       * ```js\n           // let's assume that scope was dependency injected as the $rootScope\n           var scope = $rootScope;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n\n\n\n           // Using a function as a watchExpression\n           var food;\n           scope.foodCounter = 0;\n           expect(scope.foodCounter).toEqual(0);\n           scope.$watch(\n             // This function returns the value being watched. It is called for each turn of the $digest loop\n             function() { return food; },\n             // This is the change listener, called when the value returned from the above function changes\n             function(newValue, oldValue) {\n               if ( newValue !== oldValue ) {\n                 // Only increment the counter if the value changed\n                 scope.foodCounter = scope.foodCounter + 1;\n               }\n             }\n           );\n           // No digest has been run so the counter will be zero\n           expect(scope.foodCounter).toEqual(0);\n\n           // Run the digest but since food has not changed count will still be zero\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(0);\n\n           // Update food and run digest.  Now the counter will increment\n           food = 'cheeseburger';\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(1);\n\n       * ```\n       *\n       *\n       *\n       * @param {(function()|string)} watchExpression Expression that is evaluated on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers\n       *    a call to the `listener`.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(scope)`: called with current `scope` as a parameter.\n       * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value\n       *    of `watchExpression` changes.\n       *\n       *    - `newVal` contains the current value of the `watchExpression`\n       *    - `oldVal` contains the previous value of the `watchExpression`\n       *    - `scope` refers to the current scope\n       * @param {boolean=} [objectEquality=false] Compare for object equality using {@link angular.equals} instead of\n       *     comparing for reference equality.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) {\n        var get = $parse(watchExp);\n\n        if (get.$$watchDelegate) {\n          return get.$$watchDelegate(this, listener, objectEquality, get, watchExp);\n        }\n        var scope = this,\n            array = scope.$$watchers,\n            watcher = {\n              fn: listener,\n              last: initWatchVal,\n              get: get,\n              exp: prettyPrintExpression || watchExp,\n              eq: !!objectEquality\n            };\n\n        lastDirtyWatch = null;\n\n        if (!isFunction(listener)) {\n          watcher.fn = noop;\n        }\n\n        if (!array) {\n          array = scope.$$watchers = [];\n          array.$$digestWatchIndex = -1;\n        }\n        // we use unshift since we use a while loop in $digest for speed.\n        // the while loop reads in reverse order.\n        array.unshift(watcher);\n        array.$$digestWatchIndex++;\n        incrementWatchersCount(this, 1);\n\n        return function deregisterWatch() {\n          var index = arrayRemove(array, watcher);\n          if (index >= 0) {\n            incrementWatchersCount(scope, -1);\n            if (index < array.$$digestWatchIndex) {\n              array.$$digestWatchIndex--;\n            }\n          }\n          lastDirtyWatch = null;\n        };\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchGroup\n       * @kind function\n       *\n       * @description\n       * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`.\n       * If any one expression in the collection changes the `listener` is executed.\n       *\n       * - The items in the `watchExpressions` array are observed via the standard `$watch` operation. Their return\n       *   values are examined for changes on every call to `$digest`.\n       * - The `listener` is called whenever any expression in the `watchExpressions` array changes.\n       *\n       * @param {Array.<string|Function(scope)>} watchExpressions Array of expressions that will be individually\n       * watched using {@link ng.$rootScope.Scope#$watch $watch()}\n       *\n       * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any\n       *    expression in `watchExpressions` changes\n       *    The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    The `scope` refers to the current scope.\n       * @returns {function()} Returns a de-registration function for all listeners.\n       */\n      $watchGroup: function(watchExpressions, listener) {\n        var oldValues = new Array(watchExpressions.length);\n        var newValues = new Array(watchExpressions.length);\n        var deregisterFns = [];\n        var self = this;\n        var changeReactionScheduled = false;\n        var firstRun = true;\n\n        if (!watchExpressions.length) {\n          // No expressions means we call the listener ASAP\n          var shouldCall = true;\n          self.$evalAsync(function() {\n            if (shouldCall) listener(newValues, newValues, self);\n          });\n          return function deregisterWatchGroup() {\n            shouldCall = false;\n          };\n        }\n\n        if (watchExpressions.length === 1) {\n          // Special case size of one\n          return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) {\n            newValues[0] = value;\n            oldValues[0] = oldValue;\n            listener(newValues, (value === oldValue) ? newValues : oldValues, scope);\n          });\n        }\n\n        forEach(watchExpressions, function(expr, i) {\n          var unwatchFn = self.$watch(expr, function watchGroupSubAction(value, oldValue) {\n            newValues[i] = value;\n            oldValues[i] = oldValue;\n            if (!changeReactionScheduled) {\n              changeReactionScheduled = true;\n              self.$evalAsync(watchGroupAction);\n            }\n          });\n          deregisterFns.push(unwatchFn);\n        });\n\n        function watchGroupAction() {\n          changeReactionScheduled = false;\n\n          if (firstRun) {\n            firstRun = false;\n            listener(newValues, newValues, self);\n          } else {\n            listener(newValues, oldValues, self);\n          }\n        }\n\n        return function deregisterWatchGroup() {\n          while (deregisterFns.length) {\n            deregisterFns.shift()();\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchCollection\n       * @kind function\n       *\n       * @description\n       * Shallow watches the properties of an object and fires whenever any of the properties change\n       * (for arrays, this implies watching the array items; for object maps, this implies watching\n       * the properties). If a change is detected, the `listener` callback is fired.\n       *\n       * - The `obj` collection is observed via standard $watch operation and is examined on every\n       *   call to $digest() to see if any items have been added, removed, or moved.\n       * - The `listener` is called whenever anything within the `obj` has changed. Examples include\n       *   adding, removing, and moving items belonging to an object or array.\n       *\n       *\n       * # Example\n       * ```js\n          $scope.names = ['igor', 'matias', 'misko', 'james'];\n          $scope.dataCount = 4;\n\n          $scope.$watchCollection('names', function(newNames, oldNames) {\n            $scope.dataCount = newNames.length;\n          });\n\n          expect($scope.dataCount).toEqual(4);\n          $scope.$digest();\n\n          //still at 4 ... no changes\n          expect($scope.dataCount).toEqual(4);\n\n          $scope.names.pop();\n          $scope.$digest();\n\n          //now there's been a change\n          expect($scope.dataCount).toEqual(3);\n       * ```\n       *\n       *\n       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The\n       *    expression value should evaluate to an object or an array which is observed on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the\n       *    collection will trigger a call to the `listener`.\n       *\n       * @param {function(newCollection, oldCollection, scope)} listener a callback function called\n       *    when a change is detected.\n       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression\n       *    - The `oldCollection` object is a copy of the former collection data.\n       *      Due to performance considerations, the`oldCollection` value is computed only if the\n       *      `listener` function declares two or more arguments.\n       *    - The `scope` argument refers to the current scope.\n       *\n       * @returns {function()} Returns a de-registration function for this listener. When the\n       *    de-registration function is executed, the internal watch operation is terminated.\n       */\n      $watchCollection: function(obj, listener) {\n        $watchCollectionInterceptor.$stateful = true;\n\n        var self = this;\n        // the current value, updated on each dirty-check run\n        var newValue;\n        // a shallow copy of the newValue from the last dirty-check run,\n        // updated to match newValue during dirty-check run\n        var oldValue;\n        // a shallow copy of the newValue from when the last change happened\n        var veryOldValue;\n        // only track veryOldValue if the listener is asking for it\n        var trackVeryOldValue = (listener.length > 1);\n        var changeDetected = 0;\n        var changeDetector = $parse(obj, $watchCollectionInterceptor);\n        var internalArray = [];\n        var internalObject = {};\n        var initRun = true;\n        var oldLength = 0;\n\n        function $watchCollectionInterceptor(_value) {\n          newValue = _value;\n          var newLength, key, bothNaN, newItem, oldItem;\n\n          // If the new value is undefined, then return undefined as the watch may be a one-time watch\n          if (isUndefined(newValue)) return;\n\n          if (!isObject(newValue)) { // if primitive\n            if (oldValue !== newValue) {\n              oldValue = newValue;\n              changeDetected++;\n            }\n          } else if (isArrayLike(newValue)) {\n            if (oldValue !== internalArray) {\n              // we are transitioning from something which was not an array into array.\n              oldValue = internalArray;\n              oldLength = oldValue.length = 0;\n              changeDetected++;\n            }\n\n            newLength = newValue.length;\n\n            if (oldLength !== newLength) {\n              // if lengths do not match we need to trigger change notification\n              changeDetected++;\n              oldValue.length = oldLength = newLength;\n            }\n            // copy the items to oldValue and look for changes.\n            for (var i = 0; i < newLength; i++) {\n              oldItem = oldValue[i];\n              newItem = newValue[i];\n\n              // eslint-disable-next-line no-self-compare\n              bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n              if (!bothNaN && (oldItem !== newItem)) {\n                changeDetected++;\n                oldValue[i] = newItem;\n              }\n            }\n          } else {\n            if (oldValue !== internalObject) {\n              // we are transitioning from something which was not an object into object.\n              oldValue = internalObject = {};\n              oldLength = 0;\n              changeDetected++;\n            }\n            // copy the items to oldValue and look for changes.\n            newLength = 0;\n            for (key in newValue) {\n              if (hasOwnProperty.call(newValue, key)) {\n                newLength++;\n                newItem = newValue[key];\n                oldItem = oldValue[key];\n\n                if (key in oldValue) {\n                  // eslint-disable-next-line no-self-compare\n                  bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n                  if (!bothNaN && (oldItem !== newItem)) {\n                    changeDetected++;\n                    oldValue[key] = newItem;\n                  }\n                } else {\n                  oldLength++;\n                  oldValue[key] = newItem;\n                  changeDetected++;\n                }\n              }\n            }\n            if (oldLength > newLength) {\n              // we used to have more keys, need to find them and destroy them.\n              changeDetected++;\n              for (key in oldValue) {\n                if (!hasOwnProperty.call(newValue, key)) {\n                  oldLength--;\n                  delete oldValue[key];\n                }\n              }\n            }\n          }\n          return changeDetected;\n        }\n\n        function $watchCollectionAction() {\n          if (initRun) {\n            initRun = false;\n            listener(newValue, newValue, self);\n          } else {\n            listener(newValue, veryOldValue, self);\n          }\n\n          // make a copy for the next time a collection is changed\n          if (trackVeryOldValue) {\n            if (!isObject(newValue)) {\n              //primitive\n              veryOldValue = newValue;\n            } else if (isArrayLike(newValue)) {\n              veryOldValue = new Array(newValue.length);\n              for (var i = 0; i < newValue.length; i++) {\n                veryOldValue[i] = newValue[i];\n              }\n            } else { // if object\n              veryOldValue = {};\n              for (var key in newValue) {\n                if (hasOwnProperty.call(newValue, key)) {\n                  veryOldValue[key] = newValue[key];\n                }\n              }\n            }\n          }\n        }\n\n        return this.$watch(changeDetector, $watchCollectionAction);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$digest\n       * @kind function\n       *\n       * @description\n       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and\n       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change\n       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}\n       * until no more listeners are firing. This means that it is possible to get into an infinite\n       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of\n       * iterations exceeds 10.\n       *\n       * Usually, you don't call `$digest()` directly in\n       * {@link ng.directive:ngController controllers} or in\n       * {@link ng.$compileProvider#directive directives}.\n       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within\n       * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`.\n       *\n       * If you want to be notified whenever `$digest()` is called,\n       * you can register a `watchExpression` function with\n       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.\n       *\n       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.\n       *\n       * # Example\n       * ```js\n           var scope = ...;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n       * ```\n       *\n       */\n      $digest: function() {\n        var watch, value, last, fn, get,\n            watchers,\n            dirty, ttl = TTL,\n            next, current, target = this,\n            watchLog = [],\n            logIdx, asyncTask;\n\n        beginPhase('$digest');\n        // Check for changes to browser url that happened in sync before the call to $digest\n        $browser.$$checkUrlChange();\n\n        if (this === $rootScope && applyAsyncId !== null) {\n          // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then\n          // cancel the scheduled $apply and flush the queue of expressions to be evaluated.\n          $browser.defer.cancel(applyAsyncId);\n          flushApplyAsync();\n        }\n\n        lastDirtyWatch = null;\n\n        do { // \"while dirty\" loop\n          dirty = false;\n          current = target;\n\n          // It's safe for asyncQueuePosition to be a local variable here because this loop can't\n          // be reentered recursively. Calling $digest from a function passed to $applyAsync would\n          // lead to a '$digest already in progress' error.\n          for (var asyncQueuePosition = 0; asyncQueuePosition < asyncQueue.length; asyncQueuePosition++) {\n            try {\n              asyncTask = asyncQueue[asyncQueuePosition];\n              asyncTask.scope.$eval(asyncTask.expression, asyncTask.locals);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n            lastDirtyWatch = null;\n          }\n          asyncQueue.length = 0;\n\n          traverseScopesLoop:\n          do { // \"traverse the scopes\" loop\n            if ((watchers = current.$$watchers)) {\n              // process our watches\n              watchers.$$digestWatchIndex = watchers.length;\n              while (watchers.$$digestWatchIndex--) {\n                try {\n                  watch = watchers[watchers.$$digestWatchIndex];\n                  // Most common watches are on primitives, in which case we can short\n                  // circuit it with === operator, only when === fails do we use .equals\n                  if (watch) {\n                    get = watch.get;\n                    if ((value = get(current)) !== (last = watch.last) &&\n                        !(watch.eq\n                            ? equals(value, last)\n                            : (isNumberNaN(value) && isNumberNaN(last)))) {\n                      dirty = true;\n                      lastDirtyWatch = watch;\n                      watch.last = watch.eq ? copy(value, null) : value;\n                      fn = watch.fn;\n                      fn(value, ((last === initWatchVal) ? value : last), current);\n                      if (ttl < 5) {\n                        logIdx = 4 - ttl;\n                        if (!watchLog[logIdx]) watchLog[logIdx] = [];\n                        watchLog[logIdx].push({\n                          msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp,\n                          newVal: value,\n                          oldVal: last\n                        });\n                      }\n                    } else if (watch === lastDirtyWatch) {\n                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers\n                      // have already been tested.\n                      dirty = false;\n                      break traverseScopesLoop;\n                    }\n                  }\n                } catch (e) {\n                  $exceptionHandler(e);\n                }\n              }\n            }\n\n            // Insanity Warning: scope depth-first traversal\n            // yes, this code is a bit crazy, but it works and we have tests to prove it!\n            // this piece should be kept in sync with the traversal in $broadcast\n            if (!(next = ((current.$$watchersCount && current.$$childHead) ||\n                (current !== target && current.$$nextSibling)))) {\n              while (current !== target && !(next = current.$$nextSibling)) {\n                current = current.$parent;\n              }\n            }\n          } while ((current = next));\n\n          // `break traverseScopesLoop;` takes us to here\n\n          if ((dirty || asyncQueue.length) && !(ttl--)) {\n            clearPhase();\n            throw $rootScopeMinErr('infdig',\n                '{0} $digest() iterations reached. Aborting!\\n' +\n                'Watchers fired in the last 5 iterations: {1}',\n                TTL, watchLog);\n          }\n\n        } while (dirty || asyncQueue.length);\n\n        clearPhase();\n\n        // postDigestQueuePosition isn't local here because this loop can be reentered recursively.\n        while (postDigestQueuePosition < postDigestQueue.length) {\n          try {\n            postDigestQueue[postDigestQueuePosition++]();\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        }\n        postDigestQueue.length = postDigestQueuePosition = 0;\n      },\n\n\n      /**\n       * @ngdoc event\n       * @name $rootScope.Scope#$destroy\n       * @eventType broadcast on scope being destroyed\n       *\n       * @description\n       * Broadcasted when a scope and its children are being destroyed.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$destroy\n       * @kind function\n       *\n       * @description\n       * Removes the current scope (and all of its children) from the parent scope. Removal implies\n       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer\n       * propagate to the current scope and its children. Removal also implies that the current\n       * scope is eligible for garbage collection.\n       *\n       * The `$destroy()` is usually used by directives such as\n       * {@link ng.directive:ngRepeat ngRepeat} for managing the\n       * unrolling of the loop.\n       *\n       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.\n       * Application code can register a `$destroy` event handler that will give it a chance to\n       * perform any necessary cleanup.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n      $destroy: function() {\n        // We can't destroy a scope that has been already destroyed.\n        if (this.$$destroyed) return;\n        var parent = this.$parent;\n\n        this.$broadcast('$destroy');\n        this.$$destroyed = true;\n\n        if (this === $rootScope) {\n          //Remove handlers attached to window when $rootScope is removed\n          $browser.$$applicationDestroyed();\n        }\n\n        incrementWatchersCount(this, -this.$$watchersCount);\n        for (var eventName in this.$$listenerCount) {\n          decrementListenerCount(this, this.$$listenerCount[eventName], eventName);\n        }\n\n        // sever all the references to parent scopes (after this cleanup, the current scope should\n        // not be retained by any of our references and should be eligible for garbage collection)\n        if (parent && parent.$$childHead === this) parent.$$childHead = this.$$nextSibling;\n        if (parent && parent.$$childTail === this) parent.$$childTail = this.$$prevSibling;\n        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;\n        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;\n\n        // Disable listeners, watchers and apply/digest methods\n        this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop;\n        this.$on = this.$watch = this.$watchGroup = function() { return noop; };\n        this.$$listeners = {};\n\n        // Disconnect the next sibling to prevent `cleanUpScope` destroying those too\n        this.$$nextSibling = null;\n        cleanUpScope(this);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$eval\n       * @kind function\n       *\n       * @description\n       * Executes the `expression` on the current scope and returns the result. Any exceptions in\n       * the expression are propagated (uncaught). This is useful when evaluating Angular\n       * expressions.\n       *\n       * # Example\n       * ```js\n           var scope = ng.$rootScope.Scope();\n           scope.a = 1;\n           scope.b = 2;\n\n           expect(scope.$eval('a+b')).toEqual(3);\n           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);\n       * ```\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       * @returns {*} The result of evaluating the expression.\n       */\n      $eval: function(expr, locals) {\n        return $parse(expr)(this, locals);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$evalAsync\n       * @kind function\n       *\n       * @description\n       * Executes the expression on the current scope at a later point in time.\n       *\n       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only\n       * that:\n       *\n       *   - it will execute after the function that scheduled the evaluation (preferably before DOM\n       *     rendering).\n       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after\n       *     `expression` execution.\n       *\n       * Any exceptions from the execution of the expression are forwarded to the\n       * {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle\n       * will be scheduled. However, it is encouraged to always call code that changes the model\n       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.\n       *\n       * @param {(string|function())=} expression An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       */\n      $evalAsync: function(expr, locals) {\n        // if we are outside of an $digest loop and this is the first time we are scheduling async\n        // task also schedule async auto-flush\n        if (!$rootScope.$$phase && !asyncQueue.length) {\n          $browser.defer(function() {\n            if (asyncQueue.length) {\n              $rootScope.$digest();\n            }\n          });\n        }\n\n        asyncQueue.push({scope: this, expression: $parse(expr), locals: locals});\n      },\n\n      $$postDigest: function(fn) {\n        postDigestQueue.push(fn);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$apply\n       * @kind function\n       *\n       * @description\n       * `$apply()` is used to execute an expression in angular from outside of the angular\n       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).\n       * Because we are calling into the angular framework we need to perform proper scope life\n       * cycle of {@link ng.$exceptionHandler exception handling},\n       * {@link ng.$rootScope.Scope#$digest executing watches}.\n       *\n       * ## Life cycle\n       *\n       * # Pseudo-Code of `$apply()`\n       * ```js\n           function $apply(expr) {\n             try {\n               return $eval(expr);\n             } catch (e) {\n               $exceptionHandler(e);\n             } finally {\n               $root.$digest();\n             }\n           }\n       * ```\n       *\n       *\n       * Scope's `$apply()` method transitions through the following stages:\n       *\n       * 1. The {@link guide/expression expression} is executed using the\n       *    {@link ng.$rootScope.Scope#$eval $eval()} method.\n       * 2. Any exceptions from the execution of the expression are forwarded to the\n       *    {@link ng.$exceptionHandler $exceptionHandler} service.\n       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the\n       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.\n       *\n       *\n       * @param {(string|function())=} exp An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       *\n       * @returns {*} The result of evaluating the expression.\n       */\n      $apply: function(expr) {\n        try {\n          beginPhase('$apply');\n          try {\n            return this.$eval(expr);\n          } finally {\n            clearPhase();\n          }\n        } catch (e) {\n          $exceptionHandler(e);\n        } finally {\n          try {\n            $rootScope.$digest();\n          } catch (e) {\n            $exceptionHandler(e);\n            // eslint-disable-next-line no-unsafe-finally\n            throw e;\n          }\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$applyAsync\n       * @kind function\n       *\n       * @description\n       * Schedule the invocation of $apply to occur at a later time. The actual time difference\n       * varies across browsers, but is typically around ~10 milliseconds.\n       *\n       * This can be used to queue up multiple expressions which need to be evaluated in the same\n       * digest.\n       *\n       * @param {(string|function())=} exp An angular expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       */\n      $applyAsync: function(expr) {\n        var scope = this;\n        if (expr) {\n          applyAsyncQueue.push($applyAsyncExpression);\n        }\n        expr = $parse(expr);\n        scheduleApplyAsync();\n\n        function $applyAsyncExpression() {\n          scope.$eval(expr);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$on\n       * @kind function\n       *\n       * @description\n       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for\n       * discussion of event life cycle.\n       *\n       * The event listener function format is: `function(event, args...)`. The `event` object\n       * passed into the listener has the following attributes:\n       *\n       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or\n       *     `$broadcast`-ed.\n       *   - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the\n       *     event propagates through the scope hierarchy, this property is set to null.\n       *   - `name` - `{string}`: name of the event.\n       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel\n       *     further event propagation (available only for events that were `$emit`-ed).\n       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag\n       *     to true.\n       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.\n       *\n       * @param {string} name Event name to listen on.\n       * @param {function(event, ...args)} listener Function to call when the event is emitted.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $on: function(name, listener) {\n        var namedListeners = this.$$listeners[name];\n        if (!namedListeners) {\n          this.$$listeners[name] = namedListeners = [];\n        }\n        namedListeners.push(listener);\n\n        var current = this;\n        do {\n          if (!current.$$listenerCount[name]) {\n            current.$$listenerCount[name] = 0;\n          }\n          current.$$listenerCount[name]++;\n        } while ((current = current.$parent));\n\n        var self = this;\n        return function() {\n          var indexOfListener = namedListeners.indexOf(listener);\n          if (indexOfListener !== -1) {\n            namedListeners[indexOfListener] = null;\n            decrementListenerCount(self, 1, name);\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$emit\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` upwards through the scope hierarchy notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$emit` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event traverses upwards toward the root scope and calls all\n       * registered listeners along the way. The event will stop propagating if one of the listeners\n       * cancels it.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to emit.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).\n       */\n      $emit: function(name, args) {\n        var empty = [],\n            namedListeners,\n            scope = this,\n            stopPropagation = false,\n            event = {\n              name: name,\n              targetScope: scope,\n              stopPropagation: function() {stopPropagation = true;},\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            i, length;\n\n        do {\n          namedListeners = scope.$$listeners[name] || empty;\n          event.currentScope = scope;\n          for (i = 0, length = namedListeners.length; i < length; i++) {\n\n            // if listeners were deregistered, defragment the array\n            if (!namedListeners[i]) {\n              namedListeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n            try {\n              //allow all listeners attached to the current scope to run\n              namedListeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          //if any listener on the current scope stops propagation, prevent bubbling\n          if (stopPropagation) {\n            event.currentScope = null;\n            return event;\n          }\n          //traverse upwards\n          scope = scope.$parent;\n        } while (scope);\n\n        event.currentScope = null;\n\n        return event;\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$broadcast\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$broadcast` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current\n       * scope and calls all registered listeners along the way. The event cannot be canceled.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to broadcast.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}\n       */\n      $broadcast: function(name, args) {\n        var target = this,\n            current = target,\n            next = target,\n            event = {\n              name: name,\n              targetScope: target,\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            };\n\n        if (!target.$$listenerCount[name]) return event;\n\n        var listenerArgs = concat([event], arguments, 1),\n            listeners, i, length;\n\n        //down while you can, then up and next sibling or up and next sibling until back at root\n        while ((current = next)) {\n          event.currentScope = current;\n          listeners = current.$$listeners[name] || [];\n          for (i = 0, length = listeners.length; i < length; i++) {\n            // if listeners were deregistered, defragment the array\n            if (!listeners[i]) {\n              listeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n\n            try {\n              listeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n\n          // Insanity Warning: scope depth-first traversal\n          // yes, this code is a bit crazy, but it works and we have tests to prove it!\n          // this piece should be kept in sync with the traversal in $digest\n          // (though it differs due to having the extra check for $$listenerCount)\n          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||\n              (current !== target && current.$$nextSibling)))) {\n            while (current !== target && !(next = current.$$nextSibling)) {\n              current = current.$parent;\n            }\n          }\n        }\n\n        event.currentScope = null;\n        return event;\n      }\n    };\n\n    var $rootScope = new Scope();\n\n    //The internal queues. Expose them on the $rootScope for debugging/testing purposes.\n    var asyncQueue = $rootScope.$$asyncQueue = [];\n    var postDigestQueue = $rootScope.$$postDigestQueue = [];\n    var applyAsyncQueue = $rootScope.$$applyAsyncQueue = [];\n\n    var postDigestQueuePosition = 0;\n\n    return $rootScope;\n\n\n    function beginPhase(phase) {\n      if ($rootScope.$$phase) {\n        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);\n      }\n\n      $rootScope.$$phase = phase;\n    }\n\n    function clearPhase() {\n      $rootScope.$$phase = null;\n    }\n\n    function incrementWatchersCount(current, count) {\n      do {\n        current.$$watchersCount += count;\n      } while ((current = current.$parent));\n    }\n\n    function decrementListenerCount(current, count, name) {\n      do {\n        current.$$listenerCount[name] -= count;\n\n        if (current.$$listenerCount[name] === 0) {\n          delete current.$$listenerCount[name];\n        }\n      } while ((current = current.$parent));\n    }\n\n    /**\n     * function used as an initial value for watchers.\n     * because it's unique we can easily tell it apart from other values\n     */\n    function initWatchVal() {}\n\n    function flushApplyAsync() {\n      while (applyAsyncQueue.length) {\n        try {\n          applyAsyncQueue.shift()();\n        } catch (e) {\n          $exceptionHandler(e);\n        }\n      }\n      applyAsyncId = null;\n    }\n\n    function scheduleApplyAsync() {\n      if (applyAsyncId === null) {\n        applyAsyncId = $browser.defer(function() {\n          $rootScope.$apply(flushApplyAsync);\n        });\n      }\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $rootElement\n *\n * @description\n * The root element of Angular application. This is either the element where {@link\n * ng.directive:ngApp ngApp} was declared or the element passed into\n * {@link angular.bootstrap}. The element represents the root element of application. It is also the\n * location where the application's {@link auto.$injector $injector} service gets\n * published, and can be retrieved using `$rootElement.injector()`.\n */\n\n\n// the implementation is in angular.bootstrap\n\n/**\n * @this\n * @description\n * Private service to sanitize uris for links and images. Used by $compile and $sanitize.\n */\nfunction $$SanitizeUriProvider() {\n  var aHrefSanitizationWhitelist = /^\\s*(https?|ftp|mailto|tel|file):/,\n    imgSrcSanitizationWhitelist = /^\\s*((https?|ftp|file|blob):|data:image\\/)/;\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      aHrefSanitizationWhitelist = regexp;\n      return this;\n    }\n    return aHrefSanitizationWhitelist;\n  };\n\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      imgSrcSanitizationWhitelist = regexp;\n      return this;\n    }\n    return imgSrcSanitizationWhitelist;\n  };\n\n  this.$get = function() {\n    return function sanitizeUri(uri, isImage) {\n      var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;\n      var normalizedVal;\n      normalizedVal = urlResolve(uri).href;\n      if (normalizedVal !== '' && !normalizedVal.match(regex)) {\n        return 'unsafe:' + normalizedVal;\n      }\n      return uri;\n    };\n  };\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* exported $SceProvider, $SceDelegateProvider */\n\nvar $sceMinErr = minErr('$sce');\n\nvar SCE_CONTEXTS = {\n  HTML: 'html',\n  CSS: 'css',\n  URL: 'url',\n  // RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a\n  // url.  (e.g. ng-include, script src, templateUrl)\n  RESOURCE_URL: 'resourceUrl',\n  JS: 'js'\n};\n\n// Helper functions follow.\n\nfunction adjustMatcher(matcher) {\n  if (matcher === 'self') {\n    return matcher;\n  } else if (isString(matcher)) {\n    // Strings match exactly except for 2 wildcards - '*' and '**'.\n    // '*' matches any character except those from the set ':/.?&'.\n    // '**' matches any character (like .* in a RegExp).\n    // More than 2 *'s raises an error as it's ill defined.\n    if (matcher.indexOf('***') > -1) {\n      throw $sceMinErr('iwcard',\n          'Illegal sequence *** in string matcher.  String: {0}', matcher);\n    }\n    matcher = escapeForRegexp(matcher).\n                  replace(/\\\\\\*\\\\\\*/g, '.*').\n                  replace(/\\\\\\*/g, '[^:/.?&;]*');\n    return new RegExp('^' + matcher + '$');\n  } else if (isRegExp(matcher)) {\n    // The only other type of matcher allowed is a Regexp.\n    // Match entire URL / disallow partial matches.\n    // Flags are reset (i.e. no global, ignoreCase or multiline)\n    return new RegExp('^' + matcher.source + '$');\n  } else {\n    throw $sceMinErr('imatcher',\n        'Matchers may only be \"self\", string patterns or RegExp objects');\n  }\n}\n\n\nfunction adjustMatchers(matchers) {\n  var adjustedMatchers = [];\n  if (isDefined(matchers)) {\n    forEach(matchers, function(matcher) {\n      adjustedMatchers.push(adjustMatcher(matcher));\n    });\n  }\n  return adjustedMatchers;\n}\n\n\n/**\n * @ngdoc service\n * @name $sceDelegate\n * @kind function\n *\n * @description\n *\n * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict\n * Contextual Escaping (SCE)} services to AngularJS.\n *\n * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of\n * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is\n * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to\n * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things\n * work because `$sce` delegates to `$sceDelegate` for these operations.\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.\n *\n * The default instance of `$sceDelegate` should work out of the box with little pain.  While you\n * can override it completely to change the behavior of `$sce`, the common case would\n * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting\n * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as\n * templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist\n * $sceDelegateProvider.resourceUrlWhitelist} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n */\n\n/**\n * @ngdoc provider\n * @name $sceDelegateProvider\n * @this\n *\n * @description\n *\n * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate\n * $sceDelegate} service.  This allows one to get/set the whitelists and blacklists used to ensure\n * that the URLs used for sourcing Angular templates are safe.  Refer {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and\n * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n *\n * For the general details about this service in Angular, read the main page for {@link ng.$sce\n * Strict Contextual Escaping (SCE)}.\n *\n * **Example**:  Consider the following case. <a name=\"example\"></a>\n *\n * - your app is hosted at url `http://myapp.example.com/`\n * - but some of your templates are hosted on other domains you control such as\n *   `http://srv01.assets.example.com/`, `http://srv02.assets.example.com/`, etc.\n * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.\n *\n * Here is what a secure configuration for this scenario might look like:\n *\n * ```\n *  angular.module('myApp', []).config(function($sceDelegateProvider) {\n *    $sceDelegateProvider.resourceUrlWhitelist([\n *      // Allow same origin resource loads.\n *      'self',\n *      // Allow loading from our assets domain.  Notice the difference between * and **.\n *      'http://srv*.assets.example.com/**'\n *    ]);\n *\n *    // The blacklist overrides the whitelist so the open redirect here is blocked.\n *    $sceDelegateProvider.resourceUrlBlacklist([\n *      'http://myapp.example.com/clickThru**'\n *    ]);\n *  });\n * ```\n */\n\nfunction $SceDelegateProvider() {\n  this.SCE_CONTEXTS = SCE_CONTEXTS;\n\n  // Resource URLs can also be trusted by policy.\n  var resourceUrlWhitelist = ['self'],\n      resourceUrlBlacklist = [];\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlWhitelist\n   * @kind function\n   *\n   * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value\n   *    provided.  This must be an array or null.  A snapshot of this array is used so further\n   *    changes to the array are ignored.\n   *\n   *    Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *    allowed in this array.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** an empty whitelist array will block all URLs!\n   *    </div>\n   *\n   * @return {Array} the currently set whitelist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is `['self']` allowing only\n   * same origin resource requests.\n   *\n   * @description\n   * Sets/Gets the whitelist of trusted resource URLs.\n   */\n  this.resourceUrlWhitelist = function(value) {\n    if (arguments.length) {\n      resourceUrlWhitelist = adjustMatchers(value);\n    }\n    return resourceUrlWhitelist;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlBlacklist\n   * @kind function\n   *\n   * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value\n   *    provided.  This must be an array or null.  A snapshot of this array is used so further\n   *    changes to the array are ignored.\n   *\n   *    Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *    allowed in this array.\n   *\n   *    The typical usage for the blacklist is to **block\n   *    [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as\n   *    these would otherwise be trusted but actually return content from the redirected domain.\n   *\n   *    Finally, **the blacklist overrides the whitelist** and has the final say.\n   *\n   * @return {Array} the currently set blacklist array.\n   *\n   * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there\n   * is no blacklist.)\n   *\n   * @description\n   * Sets/Gets the blacklist of trusted resource URLs.\n   */\n\n  this.resourceUrlBlacklist = function(value) {\n    if (arguments.length) {\n      resourceUrlBlacklist = adjustMatchers(value);\n    }\n    return resourceUrlBlacklist;\n  };\n\n  this.$get = ['$injector', function($injector) {\n\n    var htmlSanitizer = function htmlSanitizer(html) {\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    };\n\n    if ($injector.has('$sanitize')) {\n      htmlSanitizer = $injector.get('$sanitize');\n    }\n\n\n    function matchUrl(matcher, parsedUrl) {\n      if (matcher === 'self') {\n        return urlIsSameOrigin(parsedUrl);\n      } else {\n        // definitely a regex.  See adjustMatchers()\n        return !!matcher.exec(parsedUrl.href);\n      }\n    }\n\n    function isResourceUrlAllowedByPolicy(url) {\n      var parsedUrl = urlResolve(url.toString());\n      var i, n, allowed = false;\n      // Ensure that at least one item from the whitelist allows this url.\n      for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {\n        if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {\n          allowed = true;\n          break;\n        }\n      }\n      if (allowed) {\n        // Ensure that no item from the blacklist blocked this url.\n        for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {\n          if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {\n            allowed = false;\n            break;\n          }\n        }\n      }\n      return allowed;\n    }\n\n    function generateHolderType(Base) {\n      var holderType = function TrustedValueHolderType(trustedValue) {\n        this.$$unwrapTrustedValue = function() {\n          return trustedValue;\n        };\n      };\n      if (Base) {\n        holderType.prototype = new Base();\n      }\n      holderType.prototype.valueOf = function sceValueOf() {\n        return this.$$unwrapTrustedValue();\n      };\n      holderType.prototype.toString = function sceToString() {\n        return this.$$unwrapTrustedValue().toString();\n      };\n      return holderType;\n    }\n\n    var trustedValueHolderBase = generateHolderType(),\n        byType = {};\n\n    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#trustAs\n     *\n     * @description\n     * Returns an object that is trusted by angular for use in specified strict\n     * contextual escaping contexts (such as ng-bind-html, ng-include, any src\n     * attribute interpolation, any dom event binding attribute interpolation\n     * such as for onclick,  etc.) that uses the provided value.\n     * See {@link ng.$sce $sce} for enabling strict contextual escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resourceUrl, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n    function trustAs(type, trustedValue) {\n      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (!Constructor) {\n        throw $sceMinErr('icontext',\n            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',\n            type, trustedValue);\n      }\n      if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') {\n        return trustedValue;\n      }\n      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting\n      // mutable objects, we ensure here that the value passed in is actually a string.\n      if (typeof trustedValue !== 'string') {\n        throw $sceMinErr('itype',\n            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',\n            type);\n      }\n      return new Constructor(trustedValue);\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#valueOf\n     *\n     * @description\n     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.\n     *\n     * If the passed parameter is not a value that had been returned by {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is.\n     *\n     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}\n     *      call or anything else.\n     * @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns\n     *     `value` unchanged.\n     */\n    function valueOf(maybeTrusted) {\n      if (maybeTrusted instanceof trustedValueHolderBase) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      } else {\n        return maybeTrusted;\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#getTrusted\n     *\n     * @description\n     * Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and\n     * returns the originally supplied value if the queried context type is a supertype of the\n     * created type.  If this condition isn't satisfied, throws an exception.\n     *\n     * <div class=\"alert alert-danger\">\n     * Disabling auto-escaping is extremely dangerous, it usually creates a Cross Site Scripting\n     * (XSS) vulnerability in your application.\n     * </div>\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} call.\n     * @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if valid in this context.  Otherwise, throws an exception.\n     */\n    function getTrusted(type, maybeTrusted) {\n      if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') {\n        return maybeTrusted;\n      }\n      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (constructor && maybeTrusted instanceof constructor) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      }\n      // If we get here, then we may only take one of two actions.\n      // 1. sanitize the value for the requested type, or\n      // 2. throw an exception.\n      if (type === SCE_CONTEXTS.RESOURCE_URL) {\n        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {\n          return maybeTrusted;\n        } else {\n          throw $sceMinErr('insecurl',\n              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',\n              maybeTrusted.toString());\n        }\n      } else if (type === SCE_CONTEXTS.HTML) {\n        return htmlSanitizer(maybeTrusted);\n      }\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    }\n\n    return { trustAs: trustAs,\n             getTrusted: getTrusted,\n             valueOf: valueOf };\n  }];\n}\n\n\n/**\n * @ngdoc provider\n * @name $sceProvider\n * @this\n *\n * @description\n *\n * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.\n * -   enable/disable Strict Contextual Escaping (SCE) in a module\n * -   override the default implementation with a custom delegate\n *\n * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.\n */\n\n/**\n * @ngdoc service\n * @name $sce\n * @kind function\n *\n * @description\n *\n * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.\n *\n * # Strict Contextual Escaping\n *\n * Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain\n * contexts to result in a value that is marked as safe to use for that context.  One example of\n * such a context is binding arbitrary html controlled by the user via `ng-bind-html`.  We refer\n * to these contexts as privileged or SCE contexts.\n *\n * As of version 1.2, Angular ships with SCE enabled by default.\n *\n * Note:  When enabled (the default), IE<11 in quirks mode is not supported.  In this mode, IE<11 allow\n * one to execute arbitrary javascript by the use of the expression() syntax.  Refer\n * <http://blogs.msdn.com/b/ie/archive/2008/10/16/ending-expressions.aspx> to learn more about them.\n * You can ensure your document is in standards mode and not quirks mode by adding `<!doctype html>`\n * to the top of your HTML document.\n *\n * SCE assists in writing code in a way that (a) is secure by default and (b) makes auditing for\n * security vulnerabilities such as XSS, clickjacking, etc. a lot easier.\n *\n * Here's an example of a binding in a privileged context:\n *\n * ```\n * <input ng-model=\"userHtml\" aria-label=\"User input\">\n * <div ng-bind-html=\"userHtml\"></div>\n * ```\n *\n * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE\n * disabled, this application allows the user to render arbitrary HTML into the DIV.\n * In a more realistic example, one may be rendering user comments, blog articles, etc. via\n * bindings.  (HTML is just one example of a context where rendering user controlled input creates\n * security vulnerabilities.)\n *\n * For the case of HTML, you might use a library, either on the client side, or on the server side,\n * to sanitize unsafe HTML before binding to the value and rendering it in the document.\n *\n * How would you ensure that every place that used these types of bindings was bound to a value that\n * was sanitized by your library (or returned as safe for rendering by your server?)  How can you\n * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some\n * properties/fields and forgot to update the binding to the sanitized value?\n *\n * To be secure by default, you want to ensure that any such bindings are disallowed unless you can\n * determine that something explicitly says it's safe to use a value for binding in that\n * context.  You can then audit your code (a simple grep would do) to ensure that this is only done\n * for those values that you can easily tell are safe - because they were received from your server,\n * sanitized by your library, etc.  You can organize your codebase to help with this - perhaps\n * allowing only the files in a specific directory to do this.  Ensuring that the internal API\n * exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task.\n *\n * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}\n * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to\n * obtain values that will be accepted by SCE / privileged contexts.\n *\n *\n * ## How does it work?\n *\n * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted\n * $sce.getTrusted(context, value)} rather than to the value directly.  Directives use {@link\n * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the\n * {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals.\n *\n * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link\n * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly\n * simplified):\n *\n * ```\n * var ngBindHtmlDirective = ['$sce', function($sce) {\n *   return function(scope, element, attr) {\n *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {\n *       element.html(value || '');\n *     });\n *   };\n * }];\n * ```\n *\n * ## Impact on loading templates\n *\n * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as\n * `templateUrl`'s specified by {@link guide/directive directives}.\n *\n * By default, Angular only loads templates from the same domain and protocol as the application\n * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or\n * protocols, you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist\n * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.\n *\n * *Please note*:\n * The browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy apply in addition to this and may further restrict whether the template is successfully\n * loaded.  This means that without the right CORS policy, loading templates from a different domain\n * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some\n * browsers.\n *\n * ## This feels like too much overhead\n *\n * It's important to remember that SCE only applies to interpolation expressions.\n *\n * If your expressions are constant literals, they're automatically trusted and you don't need to\n * call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g.\n * `<div ng-bind-html=\"'<b>implicitly trusted</b>'\"></div>`) just works.\n *\n * Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them\n * through {@link ng.$sce#getTrusted $sce.getTrusted}.  SCE doesn't play a role here.\n *\n * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load\n * templates in `ng-include` from your application's domain without having to even know about SCE.\n * It blocks loading templates from other domains or loading templates over http from an https\n * served document.  You can change these by setting your own custom {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.\n *\n * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an\n * application that's secure and can be audited to verify that with much more ease than bolting\n * security onto an application later.\n *\n * <a name=\"contexts\"></a>\n * ## What trusted context types are supported?\n *\n * | Context             | Notes          |\n * |---------------------|----------------|\n * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. |\n * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |\n * | `$sce.URL`          | For URLs that are safe to follow as links.  Currently unused (`<a href=` and `<img src=` sanitize their urls and don't constitute an SCE context. |\n * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG`, `VIDEO`, `AUDIO`, `SOURCE`, and `TRACK` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. |\n * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |\n *\n * ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name=\"resourceUrlPatternItem\"></a>\n *\n *  Each element in these arrays must be one of the following:\n *\n *  - **'self'**\n *    - The special **string**, `'self'`, can be used to match against all URLs of the **same\n *      domain** as the application document using the **same protocol**.\n *  - **String** (except the special value `'self'`)\n *    - The string is matched against the full *normalized / absolute URL* of the resource\n *      being tested (substring matches are not good enough.)\n *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters\n *      match themselves.\n *    - `*`: matches zero or more occurrences of any character other than one of the following 6\n *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'.  It's a useful wildcard for use\n *      in a whitelist.\n *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not\n *      appropriate for use in a scheme, domain, etc. as it would match too much.  (e.g.\n *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might\n *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.\n *      http://foo.example.com/templates/**).\n *  - **RegExp** (*see caveat below*)\n *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax\n *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to\n *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should\n *      have good test coverage).  For instance, the use of `.` in the regex is correct only in a\n *      small number of cases.  A `.` character in the regex used when matching the scheme or a\n *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It\n *      is highly recommended to use the string patterns and only fall back to regular expressions\n *      as a last resort.\n *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is\n *      matched against the **entire** *normalized / absolute URL* of the resource being tested\n *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags\n *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.\n *    - If you are generating your JavaScript from some other templating engine (not\n *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),\n *      remember to escape your regular expression (and be aware that you might need more than\n *      one level of escaping depending on your templating engine and the way you interpolated\n *      the value.)  Do make use of your platform's escaping mechanism as it might be good\n *      enough before coding your own.  E.g. Ruby has\n *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)\n *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).\n *      Javascript lacks a similar built in function for escaping.  Take a look at Google\n *      Closure library's [goog.string.regExpEscape(s)](\n *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.\n *\n * ## Show me an example using SCE.\n *\n * <example module=\"mySceApp\" deps=\"angular-sanitize.js\" name=\"sce-service\">\n * <file name=\"index.html\">\n *   <div ng-controller=\"AppController as myCtrl\">\n *     <i ng-bind-html=\"myCtrl.explicitlyTrustedHtml\" id=\"explicitlyTrustedHtml\"></i><br><br>\n *     <b>User comments</b><br>\n *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when\n *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an\n *     exploit.\n *     <div class=\"well\">\n *       <div ng-repeat=\"userComment in myCtrl.userComments\">\n *         <b>{{userComment.name}}</b>:\n *         <span ng-bind-html=\"userComment.htmlComment\" class=\"htmlComment\"></span>\n *         <br>\n *       </div>\n *     </div>\n *   </div>\n * </file>\n *\n * <file name=\"script.js\">\n *   angular.module('mySceApp', ['ngSanitize'])\n *     .controller('AppController', ['$http', '$templateCache', '$sce',\n *       function AppController($http, $templateCache, $sce) {\n *         var self = this;\n *         $http.get('test_data.json', {cache: $templateCache}).success(function(userComments) {\n *           self.userComments = userComments;\n *         });\n *         self.explicitlyTrustedHtml = $sce.trustAsHtml(\n *             '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *             'sanitization.&quot;\">Hover over this text.</span>');\n *       }]);\n * </file>\n *\n * <file name=\"test_data.json\">\n * [\n *   { \"name\": \"Alice\",\n *     \"htmlComment\":\n *         \"<span onmouseover='this.textContent=\\\"PWN3D!\\\"'>Is <i>anyone</i> reading this?</span>\"\n *   },\n *   { \"name\": \"Bob\",\n *     \"htmlComment\": \"<i>Yes!</i>  Am I the only other one?\"\n *   }\n * ]\n * </file>\n *\n * <file name=\"protractor.js\" type=\"protractor\">\n *   describe('SCE doc demo', function() {\n *     it('should sanitize untrusted values', function() {\n *       expect(element.all(by.css('.htmlComment')).first().getAttribute('innerHTML'))\n *           .toBe('<span>Is <i>anyone</i> reading this?</span>');\n *     });\n *\n *     it('should NOT sanitize explicitly trusted values', function() {\n *       expect(element(by.id('explicitlyTrustedHtml')).getAttribute('innerHTML')).toBe(\n *           '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *           'sanitization.&quot;\">Hover over this text.</span>');\n *     });\n *   });\n * </file>\n * </example>\n *\n *\n *\n * ## Can I disable SCE completely?\n *\n * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits\n * for little coding overhead.  It will be much harder to take an SCE disabled application and\n * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE\n * for cases where you have a lot of existing code that was written before SCE was introduced and\n * you're migrating them a module at a time.\n *\n * That said, here's how you can completely disable SCE:\n *\n * ```\n * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {\n *   // Completely disable SCE.  For demonstration purposes only!\n *   // Do not use in new projects.\n *   $sceProvider.enabled(false);\n * });\n * ```\n *\n */\n\nfunction $SceProvider() {\n  var enabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $sceProvider#enabled\n   * @kind function\n   *\n   * @param {boolean=} value If provided, then enables/disables SCE.\n   * @return {boolean} true if SCE is enabled, false otherwise.\n   *\n   * @description\n   * Enables/disables SCE and returns the current value.\n   */\n  this.enabled = function(value) {\n    if (arguments.length) {\n      enabled = !!value;\n    }\n    return enabled;\n  };\n\n\n  /* Design notes on the default implementation for SCE.\n   *\n   * The API contract for the SCE delegate\n   * -------------------------------------\n   * The SCE delegate object must provide the following 3 methods:\n   *\n   * - trustAs(contextEnum, value)\n   *     This method is used to tell the SCE service that the provided value is OK to use in the\n   *     contexts specified by contextEnum.  It must return an object that will be accepted by\n   *     getTrusted() for a compatible contextEnum and return this value.\n   *\n   * - valueOf(value)\n   *     For values that were not produced by trustAs(), return them as is.  For values that were\n   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if\n   *     trustAs is wrapping the given values into some type, this operation unwraps it when given\n   *     such a value.\n   *\n   * - getTrusted(contextEnum, value)\n   *     This function should return the a value that is safe to use in the context specified by\n   *     contextEnum or throw and exception otherwise.\n   *\n   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be\n   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For\n   * instance, an implementation could maintain a registry of all trusted objects by context.  In\n   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would\n   * return the same object passed in if it was found in the registry under a compatible context or\n   * throw an exception otherwise.  An implementation might only wrap values some of the time based\n   * on some criteria.  getTrusted() might return a value and not throw an exception for special\n   * constants or objects even if not wrapped.  All such implementations fulfill this contract.\n   *\n   *\n   * A note on the inheritance model for SCE contexts\n   * ------------------------------------------------\n   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This\n   * is purely an implementation details.\n   *\n   * The contract is simply this:\n   *\n   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)\n   *     will also succeed.\n   *\n   * Inheritance happens to capture this in a natural way.  In some future, we\n   * may not use inheritance anymore.  That is OK because no code outside of\n   * sce.js and sceSpecs.js would need to be aware of this detail.\n   */\n\n  this.$get = ['$parse', '$sceDelegate', function(\n                $parse,   $sceDelegate) {\n    // Prereq: Ensure that we're not running in IE<11 quirks mode.  In that mode, IE < 11 allow\n    // the \"expression(javascript expression)\" syntax which is insecure.\n    if (enabled && msie < 8) {\n      throw $sceMinErr('iequirks',\n        'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' +\n        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +\n        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');\n    }\n\n    var sce = shallowCopy(SCE_CONTEXTS);\n\n    /**\n     * @ngdoc method\n     * @name $sce#isEnabled\n     * @kind function\n     *\n     * @return {Boolean} true if SCE is enabled, false otherwise.  If you want to set the value, you\n     * have to do it at module config time on {@link ng.$sceProvider $sceProvider}.\n     *\n     * @description\n     * Returns a boolean indicating if SCE is enabled.\n     */\n    sce.isEnabled = function() {\n      return enabled;\n    };\n    sce.trustAs = $sceDelegate.trustAs;\n    sce.getTrusted = $sceDelegate.getTrusted;\n    sce.valueOf = $sceDelegate.valueOf;\n\n    if (!enabled) {\n      sce.trustAs = sce.getTrusted = function(type, value) { return value; };\n      sce.valueOf = identity;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAs\n     *\n     * @description\n     * Converts Angular {@link guide/expression expression} into a function.  This is like {@link\n     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it\n     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,\n     * *result*)}\n     *\n     * @param {string} type The kind of SCE context in which this result will be used.\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n    sce.parseAs = function sceParseAs(type, expr) {\n      var parsed = $parse(expr);\n      if (parsed.literal && parsed.constant) {\n        return parsed;\n      } else {\n        return $parse(expr, function(value) {\n          return sce.getTrusted(type, value);\n        });\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAs\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.  As such,\n     * returns an object that is trusted by angular for use in specified strict contextual\n     * escaping contexts (such as ng-bind-html, ng-include, any src attribute\n     * interpolation, any dom event binding attribute interpolation such as for onclick,  etc.)\n     * that uses the provided value.  See * {@link ng.$sce $sce} for enabling strict contextual\n     * escaping.\n     *\n     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,\n     *   resourceUrl, html, js and css.\n     * @param {*} value The value that that should be considered trusted/safe.\n     * @returns {*} A value that can be used to stand in for the provided `value` in places\n     * where Angular expects a $sce.trustAs() return value.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsHtml(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml\n     *     $sce.getTrustedHtml(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl\n     *     $sce.getTrustedUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl\n     *     $sce.getTrustedResourceUrl(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the return\n     *     value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsJs(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}\n     *\n     * @param {*} value The value to trustAs.\n     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs\n     *     $sce.getTrustedJs(value)} to obtain the original value.  (privileged directives\n     *     only accept expressions that are either literal constants or are the\n     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrusted\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,\n     * takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the\n     * originally supplied value if the queried context type is a supertype of the created type.\n     * If this condition isn't satisfied, throws an exception.\n     *\n     * @param {string} type The kind of context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`}\n     *                         call.\n     * @returns {*} The value the was originally provided to\n     *              {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context.\n     *              Otherwise, throws an exception.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedHtml(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedCss\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedCss(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedJs\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedJs(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @returns {*} The return value of `$sce.getTrusted($sce.JS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsHtml(expression string)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsCss(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsJs(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @returns {function(context, locals)} a function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n     *      are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n     *      `context`.\n     */\n\n    // Shorthand delegations.\n    var parse = sce.parseAs,\n        getTrusted = sce.getTrusted,\n        trustAs = sce.trustAs;\n\n    forEach(SCE_CONTEXTS, function(enumValue, name) {\n      var lName = lowercase(name);\n      sce[camelCase('parse_as_' + lName)] = function(expr) {\n        return parse(enumValue, expr);\n      };\n      sce[camelCase('get_trusted_' + lName)] = function(value) {\n        return getTrusted(enumValue, value);\n      };\n      sce[camelCase('trust_as_' + lName)] = function(value) {\n        return trustAs(enumValue, value);\n      };\n    });\n\n    return sce;\n  }];\n}\n\n/* exported $SnifferProvider */\n\n/**\n * !!! This is an undocumented \"private\" service !!!\n *\n * @name $sniffer\n * @requires $window\n * @requires $document\n * @this\n *\n * @property {boolean} history Does the browser support html5 history api ?\n * @property {boolean} transitions Does the browser support CSS transition events ?\n * @property {boolean} animations Does the browser support CSS animation events ?\n *\n * @description\n * This is very simple implementation of testing browser's features.\n */\nfunction $SnifferProvider() {\n  this.$get = ['$window', '$document', function($window, $document) {\n    var eventSupport = {},\n        // Chrome Packaged Apps are not allowed to access `history.pushState`.\n        // If not sandboxed, they can be detected by the presence of `chrome.app.runtime`\n        // (see https://developer.chrome.com/apps/api_index). If sandboxed, they can be detected by\n        // the presence of an extension runtime ID and the absence of other Chrome runtime APIs\n        // (see https://developer.chrome.com/apps/manifest/sandbox).\n        isChromePackagedApp =\n            $window.chrome &&\n            ($window.chrome.app && $window.chrome.app.runtime ||\n                !$window.chrome.app && $window.chrome.runtime && $window.chrome.runtime.id),\n        hasHistoryPushState = !isChromePackagedApp && $window.history && $window.history.pushState,\n        android =\n          toInt((/android (\\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),\n        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),\n        document = $document[0] || {},\n        vendorPrefix,\n        vendorRegex = /^(Moz|webkit|ms)(?=[A-Z])/,\n        bodyStyle = document.body && document.body.style,\n        transitions = false,\n        animations = false,\n        match;\n\n    if (bodyStyle) {\n      for (var prop in bodyStyle) {\n        if ((match = vendorRegex.exec(prop))) {\n          vendorPrefix = match[0];\n          vendorPrefix = vendorPrefix[0].toUpperCase() + vendorPrefix.substr(1);\n          break;\n        }\n      }\n\n      if (!vendorPrefix) {\n        vendorPrefix = ('WebkitOpacity' in bodyStyle) && 'webkit';\n      }\n\n      transitions = !!(('transition' in bodyStyle) || (vendorPrefix + 'Transition' in bodyStyle));\n      animations  = !!(('animation' in bodyStyle) || (vendorPrefix + 'Animation' in bodyStyle));\n\n      if (android && (!transitions ||  !animations)) {\n        transitions = isString(bodyStyle.webkitTransition);\n        animations = isString(bodyStyle.webkitAnimation);\n      }\n    }\n\n\n    return {\n      // Android has history.pushState, but it does not update location correctly\n      // so let's not use the history API at all.\n      // http://code.google.com/p/android/issues/detail?id=17471\n      // https://github.com/angular/angular.js/issues/904\n\n      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has\n      // so let's not use the history API also\n      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined\n      history: !!(hasHistoryPushState && !(android < 4) && !boxee),\n      hasEvent: function(event) {\n        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have\n        // it. In particular the event is not fired when backspace or delete key are pressed or\n        // when cut operation is performed.\n        // IE10+ implements 'input' event but it erroneously fires under various situations,\n        // e.g. when placeholder changes, or a form is focused.\n        if (event === 'input' && msie <= 11) return false;\n\n        if (isUndefined(eventSupport[event])) {\n          var divElm = document.createElement('div');\n          eventSupport[event] = 'on' + event in divElm;\n        }\n\n        return eventSupport[event];\n      },\n      csp: csp(),\n      vendorPrefix: vendorPrefix,\n      transitions: transitions,\n      animations: animations,\n      android: android\n    };\n  }];\n}\n\nvar $templateRequestMinErr = minErr('$compile');\n\n/**\n * @ngdoc provider\n * @name $templateRequestProvider\n * @this\n *\n * @description\n * Used to configure the options passed to the {@link $http} service when making a template request.\n *\n * For example, it can be used for specifying the \"Accept\" header that is sent to the server, when\n * requesting a template.\n */\nfunction $TemplateRequestProvider() {\n\n  var httpOptions;\n\n  /**\n   * @ngdoc method\n   * @name $templateRequestProvider#httpOptions\n   * @description\n   * The options to be passed to the {@link $http} service when making the request.\n   * You can use this to override options such as the \"Accept\" header for template requests.\n   *\n   * The {@link $templateRequest} will set the `cache` and the `transformResponse` properties of the\n   * options if not overridden here.\n   *\n   * @param {string=} value new value for the {@link $http} options.\n   * @returns {string|self} Returns the {@link $http} options when used as getter and self if used as setter.\n   */\n  this.httpOptions = function(val) {\n    if (val) {\n      httpOptions = val;\n      return this;\n    }\n    return httpOptions;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $templateRequest\n   *\n   * @description\n   * The `$templateRequest` service runs security checks then downloads the provided template using\n   * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request\n   * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the\n   * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the\n   * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted\n   * when `tpl` is of type string and `$templateCache` has the matching entry.\n   *\n   * If you want to pass custom options to the `$http` service, such as setting the Accept header you\n   * can configure this via {@link $templateRequestProvider#httpOptions}.\n   *\n   * @param {string|TrustedResourceUrl} tpl The HTTP request template URL\n   * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty\n   *\n   * @return {Promise} a promise for the HTTP response data of the given URL.\n   *\n   * @property {number} totalPendingRequests total amount of pending template requests being downloaded.\n   */\n  this.$get = ['$templateCache', '$http', '$q', '$sce', function($templateCache, $http, $q, $sce) {\n\n    function handleRequestFn(tpl, ignoreRequestError) {\n      handleRequestFn.totalPendingRequests++;\n\n      // We consider the template cache holds only trusted templates, so\n      // there's no need to go through whitelisting again for keys that already\n      // are included in there. This also makes Angular accept any script\n      // directive, no matter its name. However, we still need to unwrap trusted\n      // types.\n      if (!isString(tpl) || isUndefined($templateCache.get(tpl))) {\n        tpl = $sce.getTrustedResourceUrl(tpl);\n      }\n\n      var transformResponse = $http.defaults && $http.defaults.transformResponse;\n\n      if (isArray(transformResponse)) {\n        transformResponse = transformResponse.filter(function(transformer) {\n          return transformer !== defaultHttpResponseTransform;\n        });\n      } else if (transformResponse === defaultHttpResponseTransform) {\n        transformResponse = null;\n      }\n\n      return $http.get(tpl, extend({\n          cache: $templateCache,\n          transformResponse: transformResponse\n        }, httpOptions)\n        )['finally'](function() {\n          handleRequestFn.totalPendingRequests--;\n        })\n        .then(function(response) {\n          $templateCache.put(tpl, response.data);\n          return response.data;\n        }, handleError);\n\n      function handleError(resp) {\n        if (!ignoreRequestError) {\n          throw $templateRequestMinErr('tpload', 'Failed to load template: {0} (HTTP status: {1} {2})',\n            tpl, resp.status, resp.statusText);\n        }\n        return $q.reject(resp);\n      }\n    }\n\n    handleRequestFn.totalPendingRequests = 0;\n\n    return handleRequestFn;\n  }];\n}\n\n/** @this */\nfunction $$TestabilityProvider() {\n  this.$get = ['$rootScope', '$browser', '$location',\n       function($rootScope,   $browser,   $location) {\n\n    /**\n     * @name $testability\n     *\n     * @description\n     * The private $$testability service provides a collection of methods for use when debugging\n     * or by automated test and debugging tools.\n     */\n    var testability = {};\n\n    /**\n     * @name $$testability#findBindings\n     *\n     * @description\n     * Returns an array of elements that are bound (via ng-bind or {{}})\n     * to expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The binding expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression. Filters and whitespace are ignored.\n     */\n    testability.findBindings = function(element, expression, opt_exactMatch) {\n      var bindings = element.getElementsByClassName('ng-binding');\n      var matches = [];\n      forEach(bindings, function(binding) {\n        var dataBinding = angular.element(binding).data('$binding');\n        if (dataBinding) {\n          forEach(dataBinding, function(bindingName) {\n            if (opt_exactMatch) {\n              var matcher = new RegExp('(^|\\\\s)' + escapeForRegexp(expression) + '(\\\\s|\\\\||$)');\n              if (matcher.test(bindingName)) {\n                matches.push(binding);\n              }\n            } else {\n              if (bindingName.indexOf(expression) !== -1) {\n                matches.push(binding);\n              }\n            }\n          });\n        }\n      });\n      return matches;\n    };\n\n    /**\n     * @name $$testability#findModels\n     *\n     * @description\n     * Returns an array of elements that are two-way found via ng-model to\n     * expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The model expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression.\n     */\n    testability.findModels = function(element, expression, opt_exactMatch) {\n      var prefixes = ['ng-', 'data-ng-', 'ng\\\\:'];\n      for (var p = 0; p < prefixes.length; ++p) {\n        var attributeEquals = opt_exactMatch ? '=' : '*=';\n        var selector = '[' + prefixes[p] + 'model' + attributeEquals + '\"' + expression + '\"]';\n        var elements = element.querySelectorAll(selector);\n        if (elements.length) {\n          return elements;\n        }\n      }\n    };\n\n    /**\n     * @name $$testability#getLocation\n     *\n     * @description\n     * Shortcut for getting the location in a browser agnostic way. Returns\n     *     the path, search, and hash. (e.g. /path?a=b#hash)\n     */\n    testability.getLocation = function() {\n      return $location.url();\n    };\n\n    /**\n     * @name $$testability#setLocation\n     *\n     * @description\n     * Shortcut for navigating to a location without doing a full page reload.\n     *\n     * @param {string} url The location url (path, search and hash,\n     *     e.g. /path?a=b#hash) to go to.\n     */\n    testability.setLocation = function(url) {\n      if (url !== $location.url()) {\n        $location.url(url);\n        $rootScope.$digest();\n      }\n    };\n\n    /**\n     * @name $$testability#whenStable\n     *\n     * @description\n     * Calls the callback when $timeout and $http requests are completed.\n     *\n     * @param {function} callback\n     */\n    testability.whenStable = function(callback) {\n      $browser.notifyWhenNoOutstandingRequests(callback);\n    };\n\n    return testability;\n  }];\n}\n\n/** @this */\nfunction $TimeoutProvider() {\n  this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler',\n       function($rootScope,   $browser,   $q,   $$q,   $exceptionHandler) {\n\n    var deferreds = {};\n\n\n     /**\n      * @ngdoc service\n      * @name $timeout\n      *\n      * @description\n      * Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch\n      * block and delegates any exceptions to\n      * {@link ng.$exceptionHandler $exceptionHandler} service.\n      *\n      * The return value of calling `$timeout` is a promise, which will be resolved when\n      * the delay has passed and the timeout function, if provided, is executed.\n      *\n      * To cancel a timeout request, call `$timeout.cancel(promise)`.\n      *\n      * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to\n      * synchronously flush the queue of deferred functions.\n      *\n      * If you only want a promise that will be resolved after some specified delay\n      * then you can call `$timeout` without the `fn` function.\n      *\n      * @param {function()=} fn A function, whose execution should be delayed.\n      * @param {number=} [delay=0] Delay in milliseconds.\n      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n      * @param {...*=} Pass additional parameters to the executed function.\n      * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise\n      *   will be resolved with the return value of the `fn` function.\n      *\n      */\n    function timeout(fn, delay, invokeApply) {\n      if (!isFunction(fn)) {\n        invokeApply = delay;\n        delay = fn;\n        fn = noop;\n      }\n\n      var args = sliceArgs(arguments, 3),\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise,\n          timeoutId;\n\n      timeoutId = $browser.defer(function() {\n        try {\n          deferred.resolve(fn.apply(null, args));\n        } catch (e) {\n          deferred.reject(e);\n          $exceptionHandler(e);\n        } finally {\n          delete deferreds[promise.$$timeoutId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }, delay);\n\n      promise.$$timeoutId = timeoutId;\n      deferreds[timeoutId] = deferred;\n\n      return promise;\n    }\n\n\n     /**\n      * @ngdoc method\n      * @name $timeout#cancel\n      *\n      * @description\n      * Cancels a task associated with the `promise`. As a result of this, the promise will be\n      * resolved with a rejection.\n      *\n      * @param {Promise=} promise Promise returned by the `$timeout` function.\n      * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n      *   canceled.\n      */\n    timeout.cancel = function(promise) {\n      if (promise && promise.$$timeoutId in deferreds) {\n        deferreds[promise.$$timeoutId].reject('canceled');\n        delete deferreds[promise.$$timeoutId];\n        return $browser.defer.cancel(promise.$$timeoutId);\n      }\n      return false;\n    };\n\n    return timeout;\n  }];\n}\n\n// NOTE:  The usage of window and document instead of $window and $document here is\n// deliberate.  This service depends on the specific behavior of anchor nodes created by the\n// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and\n// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it\n// doesn't know about mocked locations and resolves URLs to the real document - which is\n// exactly the behavior needed here.  There is little value is mocking these out for this\n// service.\nvar urlParsingNode = window.document.createElement('a');\nvar originUrl = urlResolve(window.location.href);\n\n\n/**\n *\n * Implementation Notes for non-IE browsers\n * ----------------------------------------\n * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,\n * results both in the normalizing and parsing of the URL.  Normalizing means that a relative\n * URL will be resolved into an absolute URL in the context of the application document.\n * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related\n * properties are all populated to reflect the normalized URL.  This approach has wide\n * compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc.  See\n * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *\n * Implementation Notes for IE\n * ---------------------------\n * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other\n * browsers.  However, the parsed components will not be set if the URL assigned did not specify\n * them.  (e.g. if you assign a.href = \"foo\", then a.protocol, a.host, etc. will be empty.)  We\n * work around that by performing the parsing in a 2nd step by taking a previously normalized\n * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the\n * properties such as protocol, hostname, port, etc.\n *\n * References:\n *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement\n *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *   http://url.spec.whatwg.org/#urlutils\n *   https://github.com/angular/angular.js/pull/2902\n *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/\n *\n * @kind function\n * @param {string} url The URL to be parsed.\n * @description Normalizes and parses a URL.\n * @returns {object} Returns the normalized URL as a dictionary.\n *\n *   | member name   | Description    |\n *   |---------------|----------------|\n *   | href          | A normalized version of the provided URL if it was not an absolute URL |\n *   | protocol      | The protocol including the trailing colon                              |\n *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |\n *   | search        | The search params, minus the question mark                             |\n *   | hash          | The hash string, minus the hash symbol\n *   | hostname      | The hostname\n *   | port          | The port, without \":\"\n *   | pathname      | The pathname, beginning with \"/\"\n *\n */\nfunction urlResolve(url) {\n  var href = url;\n\n  if (msie) {\n    // Normalize before parse.  Refer Implementation Notes on why this is\n    // done in two steps on IE.\n    urlParsingNode.setAttribute('href', href);\n    href = urlParsingNode.href;\n  }\n\n  urlParsingNode.setAttribute('href', href);\n\n  // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n  return {\n    href: urlParsingNode.href,\n    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n    host: urlParsingNode.host,\n    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n    hostname: urlParsingNode.hostname,\n    port: urlParsingNode.port,\n    pathname: (urlParsingNode.pathname.charAt(0) === '/')\n      ? urlParsingNode.pathname\n      : '/' + urlParsingNode.pathname\n  };\n}\n\n/**\n * Parse a request URL and determine whether this is a same-origin request as the application document.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the request is for the same origin as the application document.\n */\nfunction urlIsSameOrigin(requestUrl) {\n  var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl;\n  return (parsed.protocol === originUrl.protocol &&\n          parsed.host === originUrl.host);\n}\n\n/**\n * @ngdoc service\n * @name $window\n * @this\n *\n * @description\n * A reference to the browser's `window` object. While `window`\n * is globally available in JavaScript, it causes testability problems, because\n * it is a global variable. In angular we always refer to it through the\n * `$window` service, so it may be overridden, removed or mocked for testing.\n *\n * Expressions, like the one defined for the `ngClick` directive in the example\n * below, are evaluated with respect to the current scope.  Therefore, there is\n * no risk of inadvertently coding in a dependency on a global value in such an\n * expression.\n *\n * @example\n   <example module=\"windowExample\" name=\"window-service\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('windowExample', [])\n           .controller('ExampleController', ['$scope', '$window', function($scope, $window) {\n             $scope.greeting = 'Hello, World!';\n             $scope.doGreeting = function(greeting) {\n               $window.alert(greeting);\n             };\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"text\" ng-model=\"greeting\" aria-label=\"greeting\" />\n         <button ng-click=\"doGreeting(greeting)\">ALERT</button>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n      it('should display the greeting in the input box', function() {\n       element(by.model('greeting')).sendKeys('Hello, E2E Tests');\n       // If we click the button it will block the test runner\n       // element(':button').click();\n      });\n     </file>\n   </example>\n */\nfunction $WindowProvider() {\n  this.$get = valueFn(window);\n}\n\n/**\n * @name $$cookieReader\n * @requires $document\n *\n * @description\n * This is a private service for reading cookies used by $http and ngCookies\n *\n * @return {Object} a key/value map of the current cookies\n */\nfunction $$CookieReader($document) {\n  var rawDocument = $document[0] || {};\n  var lastCookies = {};\n  var lastCookieString = '';\n\n  function safeGetCookie(rawDocument) {\n    try {\n      return rawDocument.cookie || '';\n    } catch (e) {\n      return '';\n    }\n  }\n\n  function safeDecodeURIComponent(str) {\n    try {\n      return decodeURIComponent(str);\n    } catch (e) {\n      return str;\n    }\n  }\n\n  return function() {\n    var cookieArray, cookie, i, index, name;\n    var currentCookieString = safeGetCookie(rawDocument);\n\n    if (currentCookieString !== lastCookieString) {\n      lastCookieString = currentCookieString;\n      cookieArray = lastCookieString.split('; ');\n      lastCookies = {};\n\n      for (i = 0; i < cookieArray.length; i++) {\n        cookie = cookieArray[i];\n        index = cookie.indexOf('=');\n        if (index > 0) { //ignore nameless cookies\n          name = safeDecodeURIComponent(cookie.substring(0, index));\n          // the first value that is seen for a cookie is the most\n          // specific one.  values for the same cookie name that\n          // follow are for less specific paths.\n          if (isUndefined(lastCookies[name])) {\n            lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1));\n          }\n        }\n      }\n    }\n    return lastCookies;\n  };\n}\n\n$$CookieReader.$inject = ['$document'];\n\n/** @this */\nfunction $$CookieReaderProvider() {\n  this.$get = $$CookieReader;\n}\n\n/* global currencyFilter: true,\n dateFilter: true,\n filterFilter: true,\n jsonFilter: true,\n limitToFilter: true,\n lowercaseFilter: true,\n numberFilter: true,\n orderByFilter: true,\n uppercaseFilter: true,\n */\n\n/**\n * @ngdoc provider\n * @name $filterProvider\n * @description\n *\n * Filters are just functions which transform input to an output. However filters need to be\n * Dependency Injected. To achieve this a filter definition consists of a factory function which is\n * annotated with dependencies and is responsible for creating a filter function.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n * (`myapp_subsection_filterx`).\n * </div>\n *\n * ```js\n *   // Filter registration\n *   function MyModule($provide, $filterProvider) {\n *     // create a service to demonstrate injection (not always needed)\n *     $provide.value('greet', function(name){\n *       return 'Hello ' + name + '!';\n *     });\n *\n *     // register a filter factory which uses the\n *     // greet service to demonstrate DI.\n *     $filterProvider.register('greet', function(greet){\n *       // return the filter function which uses the greet service\n *       // to generate salutation\n *       return function(text) {\n *         // filters need to be forgiving so check input validity\n *         return text && greet(text) || text;\n *       };\n *     });\n *   }\n * ```\n *\n * The filter function is registered with the `$injector` under the filter name suffix with\n * `Filter`.\n *\n * ```js\n *   it('should be the same instance', inject(\n *     function($filterProvider) {\n *       $filterProvider.register('reverse', function(){\n *         return ...;\n *       });\n *     },\n *     function($filter, reverseFilter) {\n *       expect($filter('reverse')).toBe(reverseFilter);\n *     });\n * ```\n *\n *\n * For more information about how angular filters work, and how to create your own filters, see\n * {@link guide/filter Filters} in the Angular Developer Guide.\n */\n\n/**\n * @ngdoc service\n * @name $filter\n * @kind function\n * @description\n * Filters are used for formatting data displayed to the user.\n *\n * They can be used in view templates, controllers or services.Angular comes\n * with a collection of [built-in filters](api/ng/filter), but it is easy to\n * define your own as well.\n *\n * The general syntax in templates is as follows:\n *\n * ```html\n * {{ expression [| filter_name[:parameter_value] ... ] }}\n * ```\n *\n * @param {String} name Name of the filter function to retrieve\n * @return {Function} the filter function\n * @example\n   <example name=\"$filter\" module=\"filterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainCtrl\">\n        <h3>{{ originalText }}</h3>\n        <h3>{{ filteredText }}</h3>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n      angular.module('filterExample', [])\n      .controller('MainCtrl', function($scope, $filter) {\n        $scope.originalText = 'hello';\n        $scope.filteredText = $filter('uppercase')($scope.originalText);\n      });\n     </file>\n   </example>\n  */\n$FilterProvider.$inject = ['$provide'];\n/** @this */\nfunction $FilterProvider($provide) {\n  var suffix = 'Filter';\n\n  /**\n   * @ngdoc method\n   * @name $filterProvider#register\n   * @param {string|Object} name Name of the filter function, or an object map of filters where\n   *    the keys are the filter names and the values are the filter factories.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.\n   *    Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n   *    your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n   *    (`myapp_subsection_filterx`).\n   *    </div>\n    * @param {Function} factory If the first argument was a string, a factory function for the filter to be registered.\n   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map\n   *    of the registered filter instances.\n   */\n  function register(name, factory) {\n    if (isObject(name)) {\n      var filters = {};\n      forEach(name, function(filter, key) {\n        filters[key] = register(key, filter);\n      });\n      return filters;\n    } else {\n      return $provide.factory(name + suffix, factory);\n    }\n  }\n  this.register = register;\n\n  this.$get = ['$injector', function($injector) {\n    return function(name) {\n      return $injector.get(name + suffix);\n    };\n  }];\n\n  ////////////////////////////////////////\n\n  /* global\n    currencyFilter: false,\n    dateFilter: false,\n    filterFilter: false,\n    jsonFilter: false,\n    limitToFilter: false,\n    lowercaseFilter: false,\n    numberFilter: false,\n    orderByFilter: false,\n    uppercaseFilter: false\n  */\n\n  register('currency', currencyFilter);\n  register('date', dateFilter);\n  register('filter', filterFilter);\n  register('json', jsonFilter);\n  register('limitTo', limitToFilter);\n  register('lowercase', lowercaseFilter);\n  register('number', numberFilter);\n  register('orderBy', orderByFilter);\n  register('uppercase', uppercaseFilter);\n}\n\n/**\n * @ngdoc filter\n * @name filter\n * @kind function\n *\n * @description\n * Selects a subset of items from `array` and returns it as a new array.\n *\n * @param {Array} array The source array.\n * @param {string|Object|function()} expression The predicate to be used for selecting items from\n *   `array`.\n *\n *   Can be one of:\n *\n *   - `string`: The string is used for matching against the contents of the `array`. All strings or\n *     objects with string properties in `array` that match this string will be returned. This also\n *     applies to nested object properties.\n *     The predicate can be negated by prefixing the string with `!`.\n *\n *   - `Object`: A pattern object can be used to filter specific properties on objects contained\n *     by `array`. For example `{name:\"M\", phone:\"1\"}` predicate will return an array of items\n *     which have property `name` containing \"M\" and property `phone` containing \"1\". A special\n *     property name (`$` by default) can be used (e.g. as in `{$: \"text\"}`) to accept a match\n *     against any property of the object or its nested object properties. That's equivalent to the\n *     simple substring match with a `string` as described above. The special property name can be\n *     overwritten, using the `anyPropertyKey` parameter.\n *     The predicate can be negated by prefixing the string with `!`.\n *     For example `{name: \"!M\"}` predicate will return an array of items which have property `name`\n *     not containing \"M\".\n *\n *     Note that a named property will match properties on the same level only, while the special\n *     `$` property will match properties on the same level or deeper. E.g. an array item like\n *     `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but\n *     **will** be matched by `{$: 'John'}`.\n *\n *   - `function(value, index, array)`: A predicate function can be used to write arbitrary filters.\n *     The function is called for each element of the array, with the element, its index, and\n *     the entire array itself as arguments.\n *\n *     The final result is an array of those elements that the predicate returned true for.\n *\n * @param {function(actual, expected)|true|false} [comparator] Comparator which is used in\n *     determining if the expected value (from the filter expression) and actual value (from\n *     the object in the array) should be considered a match.\n *\n *   Can be one of:\n *\n *   - `function(actual, expected)`:\n *     The function will be given the object value and the predicate value to compare and\n *     should return true if both values should be considered equal.\n *\n *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`.\n *     This is essentially strict comparison of expected and actual.\n *\n *   - `false`: A short hand for a function which will look for a substring match in a case\n *     insensitive way. Primitive values are converted to strings. Objects are not compared against\n *     primitives, unless they have a custom `toString` method (e.g. `Date` objects).\n *\n *\n *   Defaults to `false`.\n *\n * @param {string} [anyPropertyKey] The special property name that matches against any property.\n *     By default `$`.\n *\n * @example\n   <example name=\"filter-filter\">\n     <file name=\"index.html\">\n       <div ng-init=\"friends = [{name:'John', phone:'555-1276'},\n                                {name:'Mary', phone:'800-BIG-MARY'},\n                                {name:'Mike', phone:'555-4321'},\n                                {name:'Adam', phone:'555-5678'},\n                                {name:'Julie', phone:'555-8765'},\n                                {name:'Juliette', phone:'555-5678'}]\"></div>\n\n       <label>Search: <input ng-model=\"searchText\"></label>\n       <table id=\"searchTextResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friend in friends | filter:searchText\">\n           <td>{{friend.name}}</td>\n           <td>{{friend.phone}}</td>\n         </tr>\n       </table>\n       <hr>\n       <label>Any: <input ng-model=\"search.$\"></label> <br>\n       <label>Name only <input ng-model=\"search.name\"></label><br>\n       <label>Phone only <input ng-model=\"search.phone\"></label><br>\n       <label>Equality <input type=\"checkbox\" ng-model=\"strict\"></label><br>\n       <table id=\"searchObjResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friendObj in friends | filter:search:strict\">\n           <td>{{friendObj.name}}</td>\n           <td>{{friendObj.phone}}</td>\n         </tr>\n       </table>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var expectFriendNames = function(expectedNames, key) {\n         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {\n           arr.forEach(function(wd, i) {\n             expect(wd.getText()).toMatch(expectedNames[i]);\n           });\n         });\n       };\n\n       it('should search across all fields when filtering with a string', function() {\n         var searchText = element(by.model('searchText'));\n         searchText.clear();\n         searchText.sendKeys('m');\n         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');\n\n         searchText.clear();\n         searchText.sendKeys('76');\n         expectFriendNames(['John', 'Julie'], 'friend');\n       });\n\n       it('should search in specific fields when filtering with a predicate object', function() {\n         var searchAny = element(by.model('search.$'));\n         searchAny.clear();\n         searchAny.sendKeys('i');\n         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');\n       });\n       it('should use a equal comparison when comparator is true', function() {\n         var searchName = element(by.model('search.name'));\n         var strict = element(by.model('strict'));\n         searchName.clear();\n         searchName.sendKeys('Julie');\n         strict.click();\n         expectFriendNames(['Julie'], 'friendObj');\n       });\n     </file>\n   </example>\n */\n\nfunction filterFilter() {\n  return function(array, expression, comparator, anyPropertyKey) {\n    if (!isArrayLike(array)) {\n      if (array == null) {\n        return array;\n      } else {\n        throw minErr('filter')('notarray', 'Expected array but received: {0}', array);\n      }\n    }\n\n    anyPropertyKey = anyPropertyKey || '$';\n    var expressionType = getTypeForFilter(expression);\n    var predicateFn;\n    var matchAgainstAnyProp;\n\n    switch (expressionType) {\n      case 'function':\n        predicateFn = expression;\n        break;\n      case 'boolean':\n      case 'null':\n      case 'number':\n      case 'string':\n        matchAgainstAnyProp = true;\n        // falls through\n      case 'object':\n        predicateFn = createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n        break;\n      default:\n        return array;\n    }\n\n    return Array.prototype.filter.call(array, predicateFn);\n  };\n}\n\n// Helper functions for `filterFilter`\nfunction createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp) {\n  var shouldMatchPrimitives = isObject(expression) && (anyPropertyKey in expression);\n  var predicateFn;\n\n  if (comparator === true) {\n    comparator = equals;\n  } else if (!isFunction(comparator)) {\n    comparator = function(actual, expected) {\n      if (isUndefined(actual)) {\n        // No substring matching against `undefined`\n        return false;\n      }\n      if ((actual === null) || (expected === null)) {\n        // No substring matching against `null`; only match against `null`\n        return actual === expected;\n      }\n      if (isObject(expected) || (isObject(actual) && !hasCustomToString(actual))) {\n        // Should not compare primitives against objects, unless they have custom `toString` method\n        return false;\n      }\n\n      actual = lowercase('' + actual);\n      expected = lowercase('' + expected);\n      return actual.indexOf(expected) !== -1;\n    };\n  }\n\n  predicateFn = function(item) {\n    if (shouldMatchPrimitives && !isObject(item)) {\n      return deepCompare(item, expression[anyPropertyKey], comparator, anyPropertyKey, false);\n    }\n    return deepCompare(item, expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n  };\n\n  return predicateFn;\n}\n\nfunction deepCompare(actual, expected, comparator, anyPropertyKey, matchAgainstAnyProp, dontMatchWholeObject) {\n  var actualType = getTypeForFilter(actual);\n  var expectedType = getTypeForFilter(expected);\n\n  if ((expectedType === 'string') && (expected.charAt(0) === '!')) {\n    return !deepCompare(actual, expected.substring(1), comparator, anyPropertyKey, matchAgainstAnyProp);\n  } else if (isArray(actual)) {\n    // In case `actual` is an array, consider it a match\n    // if ANY of it's items matches `expected`\n    return actual.some(function(item) {\n      return deepCompare(item, expected, comparator, anyPropertyKey, matchAgainstAnyProp);\n    });\n  }\n\n  switch (actualType) {\n    case 'object':\n      var key;\n      if (matchAgainstAnyProp) {\n        for (key in actual) {\n          if ((key.charAt(0) !== '$') && deepCompare(actual[key], expected, comparator, anyPropertyKey, true)) {\n            return true;\n          }\n        }\n        return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, anyPropertyKey, false);\n      } else if (expectedType === 'object') {\n        for (key in expected) {\n          var expectedVal = expected[key];\n          if (isFunction(expectedVal) || isUndefined(expectedVal)) {\n            continue;\n          }\n\n          var matchAnyProperty = key === anyPropertyKey;\n          var actualVal = matchAnyProperty ? actual : actual[key];\n          if (!deepCompare(actualVal, expectedVal, comparator, anyPropertyKey, matchAnyProperty, matchAnyProperty)) {\n            return false;\n          }\n        }\n        return true;\n      } else {\n        return comparator(actual, expected);\n      }\n    case 'function':\n      return false;\n    default:\n      return comparator(actual, expected);\n  }\n}\n\n// Used for easily differentiating between `null` and actual `object`\nfunction getTypeForFilter(val) {\n  return (val === null) ? 'null' : typeof val;\n}\n\nvar MAX_DIGITS = 22;\nvar DECIMAL_SEP = '.';\nvar ZERO_CHAR = '0';\n\n/**\n * @ngdoc filter\n * @name currency\n * @kind function\n *\n * @description\n * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default\n * symbol for current locale is used.\n *\n * @param {number} amount Input to filter.\n * @param {string=} symbol Currency symbol or identifier to be displayed.\n * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale\n * @returns {string} Formatted number.\n *\n *\n * @example\n   <example module=\"currencyExample\" name=\"currency-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('currencyExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.amount = 1234.56;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"number\" ng-model=\"amount\" aria-label=\"amount\"> <br>\n         default currency symbol ($): <span id=\"currency-default\">{{amount | currency}}</span><br>\n         custom currency identifier (USD$): <span id=\"currency-custom\">{{amount | currency:\"USD$\"}}</span>\n         no fractions (0): <span id=\"currency-no-fractions\">{{amount | currency:\"USD$\":0}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should init with 1234.56', function() {\n         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');\n         expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235');\n       });\n       it('should update', function() {\n         if (browser.params.browser === 'safari') {\n           // Safari does not understand the minus key. See\n           // https://github.com/angular/protractor/issues/481\n           return;\n         }\n         element(by.model('amount')).clear();\n         element(by.model('amount')).sendKeys('-1234');\n         expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00');\n         expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234');\n       });\n     </file>\n   </example>\n */\ncurrencyFilter.$inject = ['$locale'];\nfunction currencyFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(amount, currencySymbol, fractionSize) {\n    if (isUndefined(currencySymbol)) {\n      currencySymbol = formats.CURRENCY_SYM;\n    }\n\n    if (isUndefined(fractionSize)) {\n      fractionSize = formats.PATTERNS[1].maxFrac;\n    }\n\n    // if null or undefined pass it through\n    return (amount == null)\n        ? amount\n        : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize).\n            replace(/\\u00A4/g, currencySymbol);\n  };\n}\n\n/**\n * @ngdoc filter\n * @name number\n * @kind function\n *\n * @description\n * Formats a number as text.\n *\n * If the input is null or undefined, it will just be returned.\n * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively.\n * If the input is not a number an empty string is returned.\n *\n *\n * @param {number|string} number Number to format.\n * @param {(number|string)=} fractionSize Number of decimal places to round the number to.\n * If this is not provided then the fraction size is computed from the current locale's number\n * formatting pattern. In the case of the default locale, it will be 3.\n * @returns {string} Number rounded to `fractionSize` appropriately formatted based on the current\n *                   locale (e.g., in the en_US locale it will have \".\" as the decimal separator and\n *                   include \",\" group separators after each third digit).\n *\n * @example\n   <example module=\"numberFilterExample\" name=\"number-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('numberFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.val = 1234.56789;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter number: <input ng-model='val'></label><br>\n         Default formatting: <span id='number-default'>{{val | number}}</span><br>\n         No fractions: <span>{{val | number:0}}</span><br>\n         Negative number: <span>{{-val | number:4}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format numbers', function() {\n         expect(element(by.id('number-default')).getText()).toBe('1,234.568');\n         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');\n       });\n\n       it('should update', function() {\n         element(by.model('val')).clear();\n         element(by.model('val')).sendKeys('3374.333');\n         expect(element(by.id('number-default')).getText()).toBe('3,374.333');\n         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');\n      });\n     </file>\n   </example>\n */\nnumberFilter.$inject = ['$locale'];\nfunction numberFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(number, fractionSize) {\n\n    // if null or undefined pass it through\n    return (number == null)\n        ? number\n        : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,\n                       fractionSize);\n  };\n}\n\n/**\n * Parse a number (as a string) into three components that can be used\n * for formatting the number.\n *\n * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/)\n *\n * @param  {string} numStr The number to parse\n * @return {object} An object describing this number, containing the following keys:\n *  - d : an array of digits containing leading zeros as necessary\n *  - i : the number of the digits in `d` that are to the left of the decimal point\n *  - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d`\n *\n */\nfunction parse(numStr) {\n  var exponent = 0, digits, numberOfIntegerDigits;\n  var i, j, zeros;\n\n  // Decimal point?\n  if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) {\n    numStr = numStr.replace(DECIMAL_SEP, '');\n  }\n\n  // Exponential form?\n  if ((i = numStr.search(/e/i)) > 0) {\n    // Work out the exponent.\n    if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i;\n    numberOfIntegerDigits += +numStr.slice(i + 1);\n    numStr = numStr.substring(0, i);\n  } else if (numberOfIntegerDigits < 0) {\n    // There was no decimal point or exponent so it is an integer.\n    numberOfIntegerDigits = numStr.length;\n  }\n\n  // Count the number of leading zeros.\n  for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */ }\n\n  if (i === (zeros = numStr.length)) {\n    // The digits are all zero.\n    digits = [0];\n    numberOfIntegerDigits = 1;\n  } else {\n    // Count the number of trailing zeros\n    zeros--;\n    while (numStr.charAt(zeros) === ZERO_CHAR) zeros--;\n\n    // Trailing zeros are insignificant so ignore them\n    numberOfIntegerDigits -= i;\n    digits = [];\n    // Convert string to array of digits without leading/trailing zeros.\n    for (j = 0; i <= zeros; i++, j++) {\n      digits[j] = +numStr.charAt(i);\n    }\n  }\n\n  // If the number overflows the maximum allowed digits then use an exponent.\n  if (numberOfIntegerDigits > MAX_DIGITS) {\n    digits = digits.splice(0, MAX_DIGITS - 1);\n    exponent = numberOfIntegerDigits - 1;\n    numberOfIntegerDigits = 1;\n  }\n\n  return { d: digits, e: exponent, i: numberOfIntegerDigits };\n}\n\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changed the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) {\n    var digits = parsedNumber.d;\n    var fractionLen = digits.length - parsedNumber.i;\n\n    // determine fractionSize if it is not specified; `+fractionSize` converts it to a number\n    fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize;\n\n    // The index of the digit to where rounding is to occur\n    var roundAt = fractionSize + parsedNumber.i;\n    var digit = digits[roundAt];\n\n    if (roundAt > 0) {\n      // Drop fractional digits beyond `roundAt`\n      digits.splice(Math.max(parsedNumber.i, roundAt));\n\n      // Set non-fractional digits beyond `roundAt` to 0\n      for (var j = roundAt; j < digits.length; j++) {\n        digits[j] = 0;\n      }\n    } else {\n      // We rounded to zero so reset the parsedNumber\n      fractionLen = Math.max(0, fractionLen);\n      parsedNumber.i = 1;\n      digits.length = Math.max(1, roundAt = fractionSize + 1);\n      digits[0] = 0;\n      for (var i = 1; i < roundAt; i++) digits[i] = 0;\n    }\n\n    if (digit >= 5) {\n      if (roundAt - 1 < 0) {\n        for (var k = 0; k > roundAt; k--) {\n          digits.unshift(0);\n          parsedNumber.i++;\n        }\n        digits.unshift(1);\n        parsedNumber.i++;\n      } else {\n        digits[roundAt - 1]++;\n      }\n    }\n\n    // Pad out with zeros to get the required fraction length\n    for (; fractionLen < Math.max(0, fractionSize); fractionLen++) digits.push(0);\n\n\n    // Do any carrying, e.g. a digit was rounded up to 10\n    var carry = digits.reduceRight(function(carry, d, i, digits) {\n      d = d + carry;\n      digits[i] = d % 10;\n      return Math.floor(d / 10);\n    }, 0);\n    if (carry) {\n      digits.unshift(carry);\n      parsedNumber.i++;\n    }\n}\n\n/**\n * Format a number into a string\n * @param  {number} number       The number to format\n * @param  {{\n *           minFrac, // the minimum number of digits required in the fraction part of the number\n *           maxFrac, // the maximum number of digits required in the fraction part of the number\n *           gSize,   // number of digits in each group of separated digits\n *           lgSize,  // number of digits in the last group of digits before the decimal separator\n *           negPre,  // the string to go in front of a negative number (e.g. `-` or `(`))\n *           posPre,  // the string to go in front of a positive number\n *           negSuf,  // the string to go after a negative number (e.g. `)`)\n *           posSuf   // the string to go after a positive number\n *         }} pattern\n * @param  {string} groupSep     The string to separate groups of number (e.g. `,`)\n * @param  {string} decimalSep   The string to act as the decimal separator (e.g. `.`)\n * @param  {[type]} fractionSize The size of the fractional part of the number\n * @return {string}              The number formatted as a string\n */\nfunction formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {\n\n  if (!(isString(number) || isNumber(number)) || isNaN(number)) return '';\n\n  var isInfinity = !isFinite(number);\n  var isZero = false;\n  var numStr = Math.abs(number) + '',\n      formattedText = '',\n      parsedNumber;\n\n  if (isInfinity) {\n    formattedText = '\\u221e';\n  } else {\n    parsedNumber = parse(numStr);\n\n    roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac);\n\n    var digits = parsedNumber.d;\n    var integerLen = parsedNumber.i;\n    var exponent = parsedNumber.e;\n    var decimals = [];\n    isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true);\n\n    // pad zeros for small numbers\n    while (integerLen < 0) {\n      digits.unshift(0);\n      integerLen++;\n    }\n\n    // extract decimals digits\n    if (integerLen > 0) {\n      decimals = digits.splice(integerLen, digits.length);\n    } else {\n      decimals = digits;\n      digits = [0];\n    }\n\n    // format the integer digits with grouping separators\n    var groups = [];\n    if (digits.length >= pattern.lgSize) {\n      groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n    }\n    while (digits.length > pattern.gSize) {\n      groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n    }\n    if (digits.length) {\n      groups.unshift(digits.join(''));\n    }\n    formattedText = groups.join(groupSep);\n\n    // append the decimal digits\n    if (decimals.length) {\n      formattedText += decimalSep + decimals.join('');\n    }\n\n    if (exponent) {\n      formattedText += 'e+' + exponent;\n    }\n  }\n  if (number < 0 && !isZero) {\n    return pattern.negPre + formattedText + pattern.negSuf;\n  } else {\n    return pattern.posPre + formattedText + pattern.posSuf;\n  }\n}\n\nfunction padNumber(num, digits, trim, negWrap) {\n  var neg = '';\n  if (num < 0 || (negWrap && num <= 0)) {\n    if (negWrap) {\n      num = -num + 1;\n    } else {\n      num = -num;\n      neg = '-';\n    }\n  }\n  num = '' + num;\n  while (num.length < digits) num = ZERO_CHAR + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\nfunction dateGetter(name, size, offset, trim, negWrap) {\n  offset = offset || 0;\n  return function(date) {\n    var value = date['get' + name]();\n    if (offset > 0 || value > -offset) {\n      value += offset;\n    }\n    if (value === 0 && offset === -12) value = 12;\n    return padNumber(value, size, trim, negWrap);\n  };\n}\n\nfunction dateStrGetter(name, shortForm, standAlone) {\n  return function(date, formats) {\n    var value = date['get' + name]();\n    var propPrefix = (standAlone ? 'STANDALONE' : '') + (shortForm ? 'SHORT' : '');\n    var get = uppercase(propPrefix + name);\n\n    return formats[get][value];\n  };\n}\n\nfunction timeZoneGetter(date, formats, offset) {\n  var zone = -1 * offset;\n  var paddedZone = (zone >= 0) ? '+' : '';\n\n  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +\n                padNumber(Math.abs(zone % 60), 2);\n\n  return paddedZone;\n}\n\nfunction getFirstThursdayOfYear(year) {\n    // 0 = index of January\n    var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay();\n    // 4 = index of Thursday (+1 to account for 1st = 5)\n    // 11 = index of *next* Thursday (+1 account for 1st = 12)\n    return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst);\n}\n\nfunction getThursdayThisWeek(datetime) {\n    return new Date(datetime.getFullYear(), datetime.getMonth(),\n      // 4 = index of Thursday\n      datetime.getDate() + (4 - datetime.getDay()));\n}\n\nfunction weekGetter(size) {\n   return function(date) {\n      var firstThurs = getFirstThursdayOfYear(date.getFullYear()),\n         thisThurs = getThursdayThisWeek(date);\n\n      var diff = +thisThurs - +firstThurs,\n         result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n\n      return padNumber(result, size);\n   };\n}\n\nfunction ampmGetter(date, formats) {\n  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];\n}\n\nfunction eraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1];\n}\n\nfunction longEraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1];\n}\n\nvar DATE_FORMATS = {\n  yyyy: dateGetter('FullYear', 4, 0, false, true),\n    yy: dateGetter('FullYear', 2, 0, true, true),\n     y: dateGetter('FullYear', 1, 0, false, true),\n  MMMM: dateStrGetter('Month'),\n   MMM: dateStrGetter('Month', true),\n    MM: dateGetter('Month', 2, 1),\n     M: dateGetter('Month', 1, 1),\n  LLLL: dateStrGetter('Month', false, true),\n    dd: dateGetter('Date', 2),\n     d: dateGetter('Date', 1),\n    HH: dateGetter('Hours', 2),\n     H: dateGetter('Hours', 1),\n    hh: dateGetter('Hours', 2, -12),\n     h: dateGetter('Hours', 1, -12),\n    mm: dateGetter('Minutes', 2),\n     m: dateGetter('Minutes', 1),\n    ss: dateGetter('Seconds', 2),\n     s: dateGetter('Seconds', 1),\n     // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions\n   sss: dateGetter('Milliseconds', 3),\n  EEEE: dateStrGetter('Day'),\n   EEE: dateStrGetter('Day', true),\n     a: ampmGetter,\n     Z: timeZoneGetter,\n    ww: weekGetter(2),\n     w: weekGetter(1),\n     G: eraGetter,\n     GG: eraGetter,\n     GGG: eraGetter,\n     GGGG: longEraGetter\n};\n\nvar DATE_FORMATS_SPLIT = /((?:[^yMLdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|m+|s+|a|Z|G+|w+))(.*)/,\n    NUMBER_STRING = /^-?\\d+$/;\n\n/**\n * @ngdoc filter\n * @name date\n * @kind function\n *\n * @description\n *   Formats `date` to a string based on the requested `format`.\n *\n *   `format` string can be composed of the following elements:\n *\n *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)\n *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)\n *   * `'MMMM'`: Month in year (January-December)\n *   * `'MMM'`: Month in year (Jan-Dec)\n *   * `'MM'`: Month in year, padded (01-12)\n *   * `'M'`: Month in year (1-12)\n *   * `'LLLL'`: Stand-alone month in year (January-December)\n *   * `'dd'`: Day in month, padded (01-31)\n *   * `'d'`: Day in month (1-31)\n *   * `'EEEE'`: Day in Week,(Sunday-Saturday)\n *   * `'EEE'`: Day in Week, (Sun-Sat)\n *   * `'HH'`: Hour in day, padded (00-23)\n *   * `'H'`: Hour in day (0-23)\n *   * `'hh'`: Hour in AM/PM, padded (01-12)\n *   * `'h'`: Hour in AM/PM, (1-12)\n *   * `'mm'`: Minute in hour, padded (00-59)\n *   * `'m'`: Minute in hour (0-59)\n *   * `'ss'`: Second in minute, padded (00-59)\n *   * `'s'`: Second in minute (0-59)\n *   * `'sss'`: Millisecond in second, padded (000-999)\n *   * `'a'`: AM/PM marker\n *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)\n *   * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year\n *   * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year\n *   * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD')\n *   * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini')\n *\n *   `format` string can also be one of the following predefined\n *   {@link guide/i18n localizable formats}:\n *\n *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale\n *     (e.g. Sep 3, 2010 12:05:08 PM)\n *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)\n *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale\n *     (e.g. Friday, September 3, 2010)\n *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)\n *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)\n *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)\n *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)\n *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)\n *\n *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.\n *   `\"h 'in the morning'\"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence\n *   (e.g. `\"h 'o''clock'\"`).\n *\n * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or\n *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its\n *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is\n *    specified in the string input, the time is considered to be in the local timezone.\n * @param {string=} format Formatting rules (see Description). If not specified,\n *    `mediumDate` is used.\n * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the\n *    continental US time zone abbreviations, but for general use, use a time zone offset, for\n *    example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *    If not specified, the timezone of the browser will be used.\n * @returns {string} Formatted string or the input if input is not recognized as date/millis.\n *\n * @example\n   <example name=\"filter-date\">\n     <file name=\"index.html\">\n       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:\n           <span>{{1288323623006 | date:'medium'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:\n          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:\n          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:\"MM/dd/yyyy 'at' h:mma\"}}</span>:\n          <span>{{'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"}}</span><br>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format date', function() {\n         expect(element(by.binding(\"1288323623006 | date:'medium'\")).getText()).\n            toMatch(/Oct 2\\d, 2010 \\d{1,2}:\\d{2}:\\d{2} (AM|PM)/);\n         expect(element(by.binding(\"1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'\")).getText()).\n            toMatch(/2010-10-2\\d \\d{2}:\\d{2}:\\d{2} (-|\\+)?\\d{4}/);\n         expect(element(by.binding(\"'1288323623006' | date:'MM/dd/yyyy @ h:mma'\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 @ \\d{1,2}:\\d{2}(AM|PM)/);\n         expect(element(by.binding(\"'1288323623006' | date:\\\"MM/dd/yyyy 'at' h:mma\\\"\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 at \\d{1,2}:\\d{2}(AM|PM)/);\n       });\n     </file>\n   </example>\n */\ndateFilter.$inject = ['$locale'];\nfunction dateFilter($locale) {\n\n\n  var R_ISO8601_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n                     // 1        2       3         4          5          6          7          8  9     10      11\n  function jsonStringToDate(string) {\n    var match;\n    if ((match = string.match(R_ISO8601_STR))) {\n      var date = new Date(0),\n          tzHour = 0,\n          tzMin  = 0,\n          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,\n          timeSetter = match[8] ? date.setUTCHours : date.setHours;\n\n      if (match[9]) {\n        tzHour = toInt(match[9] + match[10]);\n        tzMin = toInt(match[9] + match[11]);\n      }\n      dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n      var h = toInt(match[4] || 0) - tzHour;\n      var m = toInt(match[5] || 0) - tzMin;\n      var s = toInt(match[6] || 0);\n      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n      timeSetter.call(date, h, m, s, ms);\n      return date;\n    }\n    return string;\n  }\n\n\n  return function(date, format, timezone) {\n    var text = '',\n        parts = [],\n        fn, match;\n\n    format = format || 'mediumDate';\n    format = $locale.DATETIME_FORMATS[format] || format;\n    if (isString(date)) {\n      date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date);\n    }\n\n    if (isNumber(date)) {\n      date = new Date(date);\n    }\n\n    if (!isDate(date) || !isFinite(date.getTime())) {\n      return date;\n    }\n\n    while (format) {\n      match = DATE_FORMATS_SPLIT.exec(format);\n      if (match) {\n        parts = concat(parts, match, 1);\n        format = parts.pop();\n      } else {\n        parts.push(format);\n        format = null;\n      }\n    }\n\n    var dateTimezoneOffset = date.getTimezoneOffset();\n    if (timezone) {\n      dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n      date = convertTimezoneToLocal(date, timezone, true);\n    }\n    forEach(parts, function(value) {\n      fn = DATE_FORMATS[value];\n      text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset)\n                 : value === '\\'\\'' ? '\\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n    });\n\n    return text;\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name json\n * @kind function\n *\n * @description\n *   Allows you to convert a JavaScript object into JSON string.\n *\n *   This filter is mostly useful for debugging. When using the double curly {{value}} notation\n *   the binding is automatically converted to JSON.\n *\n * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.\n * @param {number=} spacing The number of spaces to use per indentation, defaults to 2.\n * @returns {string} JSON string.\n *\n *\n * @example\n   <example name=\"filter-json\">\n     <file name=\"index.html\">\n       <pre id=\"default-spacing\">{{ {'name':'value'} | json }}</pre>\n       <pre id=\"custom-spacing\">{{ {'name':'value'} | json:4 }}</pre>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should jsonify filtered objects', function() {\n         expect(element(by.id('default-spacing')).getText()).toMatch(/\\{\\n {2}\"name\": ?\"value\"\\n}/);\n         expect(element(by.id('custom-spacing')).getText()).toMatch(/\\{\\n {4}\"name\": ?\"value\"\\n}/);\n       });\n     </file>\n   </example>\n *\n */\nfunction jsonFilter() {\n  return function(object, spacing) {\n    if (isUndefined(spacing)) {\n        spacing = 2;\n    }\n    return toJson(object, spacing);\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name lowercase\n * @kind function\n * @description\n * Converts string to lowercase.\n * @see angular.lowercase\n */\nvar lowercaseFilter = valueFn(lowercase);\n\n\n/**\n * @ngdoc filter\n * @name uppercase\n * @kind function\n * @description\n * Converts string to uppercase.\n * @see angular.uppercase\n */\nvar uppercaseFilter = valueFn(uppercase);\n\n/**\n * @ngdoc filter\n * @name limitTo\n * @kind function\n *\n * @description\n * Creates a new array or string containing only a specified number of elements. The elements are\n * taken from either the beginning or the end of the source array, string or number, as specified by\n * the value and sign (positive or negative) of `limit`. Other array-like objects are also supported\n * (e.g. array subclasses, NodeLists, jqLite/jQuery collections etc). If a number is used as input,\n * it is converted to a string.\n *\n * @param {Array|ArrayLike|string|number} input - Array/array-like, string or number to be limited.\n * @param {string|number} limit - The length of the returned array or string. If the `limit` number\n *     is positive, `limit` number of items from the beginning of the source array/string are copied.\n *     If the number is negative, `limit` number  of items from the end of the source array/string\n *     are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined,\n *     the input will be returned unchanged.\n * @param {(string|number)=} begin - Index at which to begin limitation. As a negative index,\n *     `begin` indicates an offset from the end of `input`. Defaults to `0`.\n * @returns {Array|string} A new sub-array or substring of length `limit` or less if the input had\n *     less than `limit` elements.\n *\n * @example\n   <example module=\"limitToExample\" name=\"limit-to-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('limitToExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.numbers = [1,2,3,4,5,6,7,8,9];\n             $scope.letters = \"abcdefghi\";\n             $scope.longNumber = 2345432342;\n             $scope.numLimit = 3;\n             $scope.letterLimit = 3;\n             $scope.longNumberLimit = 3;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>\n            Limit {{numbers}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"numLimit\">\n         </label>\n         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>\n         <label>\n            Limit {{letters}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"letterLimit\">\n         </label>\n         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>\n         <label>\n            Limit {{longNumber}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"longNumberLimit\">\n         </label>\n         <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var numLimitInput = element(by.model('numLimit'));\n       var letterLimitInput = element(by.model('letterLimit'));\n       var longNumberLimitInput = element(by.model('longNumberLimit'));\n       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));\n       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));\n       var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));\n\n       it('should limit the number array to first three items', function() {\n         expect(numLimitInput.getAttribute('value')).toBe('3');\n         expect(letterLimitInput.getAttribute('value')).toBe('3');\n         expect(longNumberLimitInput.getAttribute('value')).toBe('3');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abc');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 234');\n       });\n\n       // There is a bug in safari and protractor that doesn't like the minus key\n       // it('should update the output when -3 is entered', function() {\n       //   numLimitInput.clear();\n       //   numLimitInput.sendKeys('-3');\n       //   letterLimitInput.clear();\n       //   letterLimitInput.sendKeys('-3');\n       //   longNumberLimitInput.clear();\n       //   longNumberLimitInput.sendKeys('-3');\n       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');\n       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');\n       //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');\n       // });\n\n       it('should not exceed the maximum size of input array', function() {\n         numLimitInput.clear();\n         numLimitInput.sendKeys('100');\n         letterLimitInput.clear();\n         letterLimitInput.sendKeys('100');\n         longNumberLimitInput.clear();\n         longNumberLimitInput.sendKeys('100');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');\n       });\n     </file>\n   </example>\n*/\nfunction limitToFilter() {\n  return function(input, limit, begin) {\n    if (Math.abs(Number(limit)) === Infinity) {\n      limit = Number(limit);\n    } else {\n      limit = toInt(limit);\n    }\n    if (isNumberNaN(limit)) return input;\n\n    if (isNumber(input)) input = input.toString();\n    if (!isArrayLike(input)) return input;\n\n    begin = (!begin || isNaN(begin)) ? 0 : toInt(begin);\n    begin = (begin < 0) ? Math.max(0, input.length + begin) : begin;\n\n    if (limit >= 0) {\n      return sliceFn(input, begin, begin + limit);\n    } else {\n      if (begin === 0) {\n        return sliceFn(input, limit, input.length);\n      } else {\n        return sliceFn(input, Math.max(0, begin + limit), begin);\n      }\n    }\n  };\n}\n\nfunction sliceFn(input, begin, end) {\n  if (isString(input)) return input.slice(begin, end);\n\n  return slice.call(input, begin, end);\n}\n\n/**\n * @ngdoc filter\n * @name orderBy\n * @kind function\n *\n * @description\n * Returns an array containing the items from the specified `collection`, ordered by a `comparator`\n * function based on the values computed using the `expression` predicate.\n *\n * For example, `[{id: 'foo'}, {id: 'bar'}] | orderBy:'id'` would result in\n * `[{id: 'bar'}, {id: 'foo'}]`.\n *\n * The `collection` can be an Array or array-like object (e.g. NodeList, jQuery object, TypedArray,\n * String, etc).\n *\n * The `expression` can be a single predicate, or a list of predicates each serving as a tie-breaker\n * for the preceding one. The `expression` is evaluated against each item and the output is used\n * for comparing with other items.\n *\n * You can change the sorting order by setting `reverse` to `true`. By default, items are sorted in\n * ascending order.\n *\n * The comparison is done using the `comparator` function. If none is specified, a default, built-in\n * comparator is used (see below for details - in a nutshell, it compares numbers numerically and\n * strings alphabetically).\n *\n * ### Under the hood\n *\n * Ordering the specified `collection` happens in two phases:\n *\n * 1. All items are passed through the predicate (or predicates), and the returned values are saved\n *    along with their type (`string`, `number` etc). For example, an item `{label: 'foo'}`, passed\n *    through a predicate that extracts the value of the `label` property, would be transformed to:\n *    ```\n *    {\n *      value: 'foo',\n *      type: 'string',\n *      index: ...\n *    }\n *    ```\n * 2. The comparator function is used to sort the items, based on the derived values, types and\n *    indices.\n *\n * If you use a custom comparator, it will be called with pairs of objects of the form\n * `{value: ..., type: '...', index: ...}` and is expected to return `0` if the objects are equal\n * (as far as the comparator is concerned), `-1` if the 1st one should be ranked higher than the\n * second, or `1` otherwise.\n *\n * In order to ensure that the sorting will be deterministic across platforms, if none of the\n * specified predicates can distinguish between two items, `orderBy` will automatically introduce a\n * dummy predicate that returns the item's index as `value`.\n * (If you are using a custom comparator, make sure it can handle this predicate as well.)\n *\n * Finally, in an attempt to simplify things, if a predicate returns an object as the extracted\n * value for an item, `orderBy` will try to convert that object to a primitive value, before passing\n * it to the comparator. The following rules govern the conversion:\n *\n * 1. If the object has a `valueOf()` method that returns a primitive, its return value will be\n *    used instead.<br />\n *    (If the object has a `valueOf()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 2. If the object has a custom `toString()` method (i.e. not the one inherited from `Object`) that\n *    returns a primitive, its return value will be used instead.<br />\n *    (If the object has a `toString()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 3. No conversion; the object itself is used.\n *\n * ### The default comparator\n *\n * The default, built-in comparator should be sufficient for most usecases. In short, it compares\n * numbers numerically, strings alphabetically (and case-insensitively), for objects falls back to\n * using their index in the original collection, and sorts values of different types by type.\n *\n * More specifically, it follows these steps to determine the relative order of items:\n *\n * 1. If the compared values are of different types, compare the types themselves alphabetically.\n * 2. If both values are of type `string`, compare them alphabetically in a case- and\n *    locale-insensitive way.\n * 3. If both values are objects, compare their indices instead.\n * 4. Otherwise, return:\n *    -  `0`, if the values are equal (by strict equality comparison, i.e. using `===`).\n *    - `-1`, if the 1st value is \"less than\" the 2nd value (compared using the `<` operator).\n *    -  `1`, otherwise.\n *\n * **Note:** If you notice numbers not being sorted as expected, make sure they are actually being\n *           saved as numbers and not strings.\n * **Note:** For the purpose of sorting, `null` values are treated as the string `'null'` (i.e.\n *           `type: 'string'`, `value: 'null'`). This may cause unexpected sort order relative to\n *           other values.\n *\n * @param {Array|ArrayLike} collection - The collection (array or array-like object) to sort.\n * @param {(Function|string|Array.<Function|string>)=} expression - A predicate (or list of\n *    predicates) to be used by the comparator to determine the order of elements.\n *\n *    Can be one of:\n *\n *    - `Function`: A getter function. This function will be called with each item as argument and\n *      the return value will be used for sorting.\n *    - `string`: An Angular expression. This expression will be evaluated against each item and the\n *      result will be used for sorting. For example, use `'label'` to sort by a property called\n *      `label` or `'label.substring(0, 3)'` to sort by the first 3 characters of the `label`\n *      property.<br />\n *      (The result of a constant expression is interpreted as a property name to be used for\n *      comparison. For example, use `'\"special name\"'` (note the extra pair of quotes) to sort by a\n *      property called `special name`.)<br />\n *      An expression can be optionally prefixed with `+` or `-` to control the sorting direction,\n *      ascending or descending. For example, `'+label'` or `'-label'`. If no property is provided,\n *      (e.g. `'+'` or `'-'`), the collection element itself is used in comparisons.\n *    - `Array`: An array of function and/or string predicates. If a predicate cannot determine the\n *      relative order of two items, the next predicate is used as a tie-breaker.\n *\n * **Note:** If the predicate is missing or empty then it defaults to `'+'`.\n *\n * @param {boolean=} reverse - If `true`, reverse the sorting order.\n * @param {(Function)=} comparator - The comparator function used to determine the relative order of\n *    value pairs. If omitted, the built-in comparator will be used.\n *\n * @returns {Array} - The sorted array.\n *\n *\n * @example\n * ### Ordering a table with `ngRepeat`\n *\n * The example below demonstrates a simple {@link ngRepeat ngRepeat}, where the data is sorted by\n * age in descending order (expression is set to `'-age'`). The `comparator` is not set, which means\n * it defaults to the built-in comparator.\n *\n   <example name=\"orderBy-static\" module=\"orderByExample1\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <table class=\"friends\">\n           <tr>\n             <th>Name</th>\n             <th>Phone Number</th>\n             <th>Age</th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:'-age'\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample1', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var names = element.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by age in reverse order', function() {\n         expect(names.get(0).getText()).toBe('Adam');\n         expect(names.get(1).getText()).toBe('Julie');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('John');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Changing parameters dynamically\n *\n * All parameters can be changed dynamically. The next example shows how you can make the columns of\n * a table sortable, by binding the `expression` and `reverse` parameters to scope properties.\n *\n   <example name=\"orderBy-dynamic\" module=\"orderByExample2\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"propertyName = null; reverse = false\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:propertyName:reverse\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample2', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = friends;\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = ($scope.propertyName === propertyName) ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using `orderBy` inside a controller\n *\n * It is also possible to call the `orderBy` filter manually, by injecting `orderByFilter`, and\n * calling it with the desired parameters. (Alternatively, you could inject the `$filter` factory\n * and retrieve the `orderBy` filter with `$filter('orderBy')`.)\n *\n   <example name=\"orderBy-call-manually\" module=\"orderByExample3\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"sortBy(null)\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample3', [])\n         .controller('ExampleController', ['$scope', 'orderByFilter', function($scope, orderBy) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = (propertyName !== null && $scope.propertyName === propertyName)\n                 ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n             $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using a custom comparator\n *\n * If you have very specific requirements about the way items are sorted, you can pass your own\n * comparator function. For example, you might need to compare some strings in a locale-sensitive\n * way. (When specifying a custom comparator, you also need to pass a value for the `reverse`\n * argument - passing `false` retains the default sorting order, i.e. ascending.)\n *\n   <example name=\"orderBy-custom-comparator\" module=\"orderByExample4\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <div class=\"friends-container custom-comparator\">\n           <h3>Locale-sensitive Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter':false:localeSensitiveComparator\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n         <div class=\"friends-container default-comparator\">\n           <h3>Default Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter'\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample4', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   favoriteLetter: 'Ä'},\n             {name: 'Mary',   favoriteLetter: 'Ü'},\n             {name: 'Mike',   favoriteLetter: 'Ö'},\n             {name: 'Adam',   favoriteLetter: 'H'},\n             {name: 'Julie',  favoriteLetter: 'Z'}\n           ];\n\n           $scope.localeSensitiveComparator = function(v1, v2) {\n             // If we don't get strings, just compare by index\n             if (v1.type !== 'string' || v2.type !== 'string') {\n               return (v1.index < v2.index) ? -1 : 1;\n             }\n\n             // Compare strings alphabetically, taking locale into account\n             return v1.value.localeCompare(v2.value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends-container {\n         display: inline-block;\n         margin: 0 30px;\n       }\n\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var container = element(by.css('.custom-comparator'));\n       var names = container.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by favorite letter (in correct alphabetical order)', function() {\n         expect(names.get(0).getText()).toBe('John');\n         expect(names.get(1).getText()).toBe('Adam');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n *\n */\norderByFilter.$inject = ['$parse'];\nfunction orderByFilter($parse) {\n  return function(array, sortPredicate, reverseOrder, compareFn) {\n\n    if (array == null) return array;\n    if (!isArrayLike(array)) {\n      throw minErr('orderBy')('notarray', 'Expected array but received: {0}', array);\n    }\n\n    if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; }\n    if (sortPredicate.length === 0) { sortPredicate = ['+']; }\n\n    var predicates = processPredicates(sortPredicate);\n\n    var descending = reverseOrder ? -1 : 1;\n\n    // Define the `compare()` function. Use a default comparator if none is specified.\n    var compare = isFunction(compareFn) ? compareFn : defaultCompare;\n\n    // The next three lines are a version of a Swartzian Transform idiom from Perl\n    // (sometimes called the Decorate-Sort-Undecorate idiom)\n    // See https://en.wikipedia.org/wiki/Schwartzian_transform\n    var compareValues = Array.prototype.map.call(array, getComparisonObject);\n    compareValues.sort(doComparison);\n    array = compareValues.map(function(item) { return item.value; });\n\n    return array;\n\n    function getComparisonObject(value, index) {\n      // NOTE: We are adding an extra `tieBreaker` value based on the element's index.\n      // This will be used to keep the sort stable when none of the input predicates can\n      // distinguish between two elements.\n      return {\n        value: value,\n        tieBreaker: {value: index, type: 'number', index: index},\n        predicateValues: predicates.map(function(predicate) {\n          return getPredicateValue(predicate.get(value), index);\n        })\n      };\n    }\n\n    function doComparison(v1, v2) {\n      for (var i = 0, ii = predicates.length; i < ii; i++) {\n        var result = compare(v1.predicateValues[i], v2.predicateValues[i]);\n        if (result) {\n          return result * predicates[i].descending * descending;\n        }\n      }\n\n      return compare(v1.tieBreaker, v2.tieBreaker) * descending;\n    }\n  };\n\n  function processPredicates(sortPredicates) {\n    return sortPredicates.map(function(predicate) {\n      var descending = 1, get = identity;\n\n      if (isFunction(predicate)) {\n        get = predicate;\n      } else if (isString(predicate)) {\n        if ((predicate.charAt(0) === '+' || predicate.charAt(0) === '-')) {\n          descending = predicate.charAt(0) === '-' ? -1 : 1;\n          predicate = predicate.substring(1);\n        }\n        if (predicate !== '') {\n          get = $parse(predicate);\n          if (get.constant) {\n            var key = get();\n            get = function(value) { return value[key]; };\n          }\n        }\n      }\n      return {get: get, descending: descending};\n    });\n  }\n\n  function isPrimitive(value) {\n    switch (typeof value) {\n      case 'number': /* falls through */\n      case 'boolean': /* falls through */\n      case 'string':\n        return true;\n      default:\n        return false;\n    }\n  }\n\n  function objectValue(value) {\n    // If `valueOf` is a valid function use that\n    if (isFunction(value.valueOf)) {\n      value = value.valueOf();\n      if (isPrimitive(value)) return value;\n    }\n    // If `toString` is a valid function and not the one from `Object.prototype` use that\n    if (hasCustomToString(value)) {\n      value = value.toString();\n      if (isPrimitive(value)) return value;\n    }\n\n    return value;\n  }\n\n  function getPredicateValue(value, index) {\n    var type = typeof value;\n    if (value === null) {\n      type = 'string';\n      value = 'null';\n    } else if (type === 'object') {\n      value = objectValue(value);\n    }\n    return {value: value, type: type, index: index};\n  }\n\n  function defaultCompare(v1, v2) {\n    var result = 0;\n    var type1 = v1.type;\n    var type2 = v2.type;\n\n    if (type1 === type2) {\n      var value1 = v1.value;\n      var value2 = v2.value;\n\n      if (type1 === 'string') {\n        // Compare strings case-insensitively\n        value1 = value1.toLowerCase();\n        value2 = value2.toLowerCase();\n      } else if (type1 === 'object') {\n        // For basic objects, use the position of the object\n        // in the collection instead of the value\n        if (isObject(value1)) value1 = v1.index;\n        if (isObject(value2)) value2 = v2.index;\n      }\n\n      if (value1 !== value2) {\n        result = value1 < value2 ? -1 : 1;\n      }\n    } else {\n      result = type1 < type2 ? -1 : 1;\n    }\n\n    return result;\n  }\n}\n\nfunction ngDirective(directive) {\n  if (isFunction(directive)) {\n    directive = {\n      link: directive\n    };\n  }\n  directive.restrict = directive.restrict || 'AC';\n  return valueFn(directive);\n}\n\n/**\n * @ngdoc directive\n * @name a\n * @restrict E\n *\n * @description\n * Modifies the default behavior of the html a tag so that the default action is prevented when\n * the href attribute is empty.\n *\n * For dynamically creating `href` attributes for a tags, see the {@link ng.ngHref `ngHref`} directive.\n */\nvar htmlAnchorDirective = valueFn({\n  restrict: 'E',\n  compile: function(element, attr) {\n    if (!attr.href && !attr.xlinkHref) {\n      return function(scope, element) {\n        // If the linked element is not an anchor tag anymore, do nothing\n        if (element[0].nodeName.toLowerCase() !== 'a') return;\n\n        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?\n                   'xlink:href' : 'href';\n        element.on('click', function(event) {\n          // if we have no href url, then don't navigate anywhere.\n          if (!element.attr(href)) {\n            event.preventDefault();\n          }\n        });\n      };\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngHref\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in an href attribute will\n * make the link go to the wrong URL if the user clicks it before\n * Angular has a chance to replace the `{{hash}}` markup with its\n * value. Until Angular replaces the markup the link will be broken\n * and will most likely return a 404 error. The `ngHref` directive\n * solves this problem.\n *\n * The wrong way to write it:\n * ```html\n * <a href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <a ng-href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * @element A\n * @param {template} ngHref any string which can contain `{{}}` markup.\n *\n * @example\n * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes\n * in links and their different behaviors:\n    <example name=\"ng-href\">\n      <file name=\"index.html\">\n        <input ng-model=\"value\" /><br />\n        <a id=\"link-1\" href ng-click=\"value = 1\">link 1</a> (link, don't reload)<br />\n        <a id=\"link-2\" href=\"\" ng-click=\"value = 2\">link 2</a> (link, don't reload)<br />\n        <a id=\"link-3\" ng-href=\"/{{'123'}}\">link 3</a> (link, reload!)<br />\n        <a id=\"link-4\" href=\"\" name=\"xx\" ng-click=\"value = 4\">anchor</a> (link, don't reload)<br />\n        <a id=\"link-5\" name=\"xxx\" ng-click=\"value = 5\">anchor</a> (no link)<br />\n        <a id=\"link-6\" ng-href=\"{{value}}\">link</a> (link, change location)\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should execute ng-click but not reload when href without value', function() {\n          element(by.id('link-1')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('1');\n          expect(element(by.id('link-1')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when href empty string', function() {\n          element(by.id('link-2')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('2');\n          expect(element(by.id('link-2')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click and change url when ng-href specified', function() {\n          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\\/123$/);\n\n          element(by.id('link-3')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/123$/);\n            });\n          }, 5000, 'page should navigate to /123');\n        });\n\n        it('should execute ng-click but not reload when href empty string and name specified', function() {\n          element(by.id('link-4')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('4');\n          expect(element(by.id('link-4')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when no href but name specified', function() {\n          element(by.id('link-5')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('5');\n          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);\n        });\n\n        it('should only change url when only ng-href', function() {\n          element(by.model('value')).clear();\n          element(by.model('value')).sendKeys('6');\n          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\\/6$/);\n\n          element(by.id('link-6')).click();\n\n          // At this point, we navigate away from an Angular page, so we need\n          // to use browser.driver to get the base webdriver.\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/6$/);\n            });\n          }, 5000, 'page should navigate to /6');\n        });\n      </file>\n    </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngSrc\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `src` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrc` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrc any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngSrcset\n * @restrict A\n * @priority 99\n *\n * @description\n * Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until Angular replaces the expression inside\n * `{{hash}}`. The `ngSrcset` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrcset any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngDisabled\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * This directive sets the `disabled` attribute on the element if the\n * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `disabled`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-disabled\">\n      <file name=\"index.html\">\n        <label>Click me to toggle: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <button ng-model=\"button\" ng-disabled=\"checked\">Button</button>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle button', function() {\n          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,\n *     then the `disabled` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngChecked\n * @restrict A\n * @priority 100\n *\n * @description\n * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy.\n *\n * Note that this directive should not be used together with {@link ngModel `ngModel`},\n * as this can lead to unexpected behavior.\n *\n * A special directive is necessary because we cannot use interpolation inside the `checked`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-checked\">\n      <file name=\"index.html\">\n        <label>Check me to check both: <input type=\"checkbox\" ng-model=\"master\"></label><br/>\n        <input id=\"checkSlave\" type=\"checkbox\" ng-checked=\"master\" aria-label=\"Slave input\">\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should check both checkBoxes', function() {\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy();\n          element(by.model('master')).click();\n          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,\n *     then the `checked` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngReadonly\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `readonly` attribute on the element, if the expression inside `ngReadonly` is truthy.\n * Note that `readonly` applies only to `input` elements with specific types. [See the input docs on\n * MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-readonly) for more information.\n *\n * A special directive is necessary because we cannot use interpolation inside the `readonly`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-readonly\">\n      <file name=\"index.html\">\n        <label>Check me to make text readonly: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <input type=\"text\" ng-readonly=\"checked\" value=\"I'm Angular\" aria-label=\"Readonly field\" />\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle readonly attr', function() {\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,\n *     then special attribute \"readonly\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSelected\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `selected`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * <div class=\"alert alert-warning\">\n *   **Note:** `ngSelected` does not interact with the `select` and `ngModel` directives, it only\n *   sets the `selected` attribute on the element. If you are using `ngModel` on the select, you\n *   should not use `ngSelected` on the options, as `ngModel` will set the select value and\n *   selected options.\n * </div>\n *\n * @example\n    <example name=\"ng-selected\">\n      <file name=\"index.html\">\n        <label>Check me to select: <input type=\"checkbox\" ng-model=\"selected\"></label><br/>\n        <select aria-label=\"ngSelected demo\">\n          <option>Hello!</option>\n          <option id=\"greet\" ng-selected=\"selected\">Greetings!</option>\n        </select>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should select Greetings!', function() {\n          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();\n          element(by.model('selected')).click();\n          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element OPTION\n * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,\n *     then special attribute \"selected\" will be set on the element\n */\n\n/**\n * @ngdoc directive\n * @name ngOpen\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `open`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * ## A note about browser compatibility\n *\n * Edge, Firefox, and Internet Explorer do not support the `details` element, it is\n * recommended to use {@link ng.ngShow} and {@link ng.ngHide} instead.\n *\n * @example\n     <example name=\"ng-open\">\n       <file name=\"index.html\">\n         <label>Check me check multiple: <input type=\"checkbox\" ng-model=\"open\"></label><br/>\n         <details id=\"details\" ng-open=\"open\">\n            <summary>Show/Hide me</summary>\n         </details>\n       </file>\n       <file name=\"protractor.js\" type=\"protractor\">\n         it('should toggle open', function() {\n           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();\n           element(by.model('open')).click();\n           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();\n         });\n       </file>\n     </example>\n *\n * @element DETAILS\n * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,\n *     then special attribute \"open\" will be set on the element\n */\n\nvar ngAttributeAliasDirectives = {};\n\n// boolean attrs are evaluated\nforEach(BOOLEAN_ATTR, function(propName, attrName) {\n  // binding to multiple is not supported\n  if (propName === 'multiple') return;\n\n  function defaultLinkFn(scope, element, attr) {\n    scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {\n      attr.$set(attrName, !!value);\n    });\n  }\n\n  var normalized = directiveNormalize('ng-' + attrName);\n  var linkFn = defaultLinkFn;\n\n  if (propName === 'checked') {\n    linkFn = function(scope, element, attr) {\n      // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input\n      if (attr.ngModel !== attr[normalized]) {\n        defaultLinkFn(scope, element, attr);\n      }\n    };\n  }\n\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      restrict: 'A',\n      priority: 100,\n      link: linkFn\n    };\n  };\n});\n\n// aliased input attrs are evaluated\nforEach(ALIASED_ATTR, function(htmlAttr, ngAttr) {\n  ngAttributeAliasDirectives[ngAttr] = function() {\n    return {\n      priority: 100,\n      link: function(scope, element, attr) {\n        //special case ngPattern when a literal regular expression value\n        //is used as the expression (this way we don't have to watch anything).\n        if (ngAttr === 'ngPattern' && attr.ngPattern.charAt(0) === '/') {\n          var match = attr.ngPattern.match(REGEX_STRING_REGEXP);\n          if (match) {\n            attr.$set('ngPattern', new RegExp(match[1], match[2]));\n            return;\n          }\n        }\n\n        scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) {\n          attr.$set(ngAttr, value);\n        });\n      }\n    };\n  };\n});\n\n// ng-src, ng-srcset, ng-href are interpolated\nforEach(['src', 'srcset', 'href'], function(attrName) {\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      priority: 99, // it needs to run after the attributes are interpolated\n      link: function(scope, element, attr) {\n        var propName = attrName,\n            name = attrName;\n\n        if (attrName === 'href' &&\n            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {\n          name = 'xlinkHref';\n          attr.$attr[name] = 'xlink:href';\n          propName = null;\n        }\n\n        attr.$observe(normalized, function(value) {\n          if (!value) {\n            if (attrName === 'href') {\n              attr.$set(name, null);\n            }\n            return;\n          }\n\n          attr.$set(name, value);\n\n          // on IE, if \"ng:src\" directive declaration is used and \"src\" attribute doesn't exist\n          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need\n          // to set the property as well to achieve the desired effect.\n          // we use attr[attrName] value since $set can sanitize the url.\n          if (msie && propName) element.prop(propName, attr[name]);\n        });\n      }\n    };\n  };\n});\n\n/* global -nullFormCtrl, -SUBMITTED_CLASS, addSetValidityMethod: true\n */\nvar nullFormCtrl = {\n  $addControl: noop,\n  $$renameControl: nullFormRenameControl,\n  $removeControl: noop,\n  $setValidity: noop,\n  $setDirty: noop,\n  $setPristine: noop,\n  $setSubmitted: noop\n},\nSUBMITTED_CLASS = 'ng-submitted';\n\nfunction nullFormRenameControl(control, name) {\n  control.$name = name;\n}\n\n/**\n * @ngdoc type\n * @name form.FormController\n *\n * @property {boolean} $pristine True if user has not interacted with the form yet.\n * @property {boolean} $dirty True if user has already interacted with the form.\n * @property {boolean} $valid True if all of the containing forms and controls are valid.\n * @property {boolean} $invalid True if at least one containing control or form is invalid.\n * @property {boolean} $pending True if at least one containing control or form is pending.\n * @property {boolean} $submitted True if user has submitted the form even if its invalid.\n *\n * @property {Object} $error Is an object hash, containing references to controls or\n *  forms with failing validators, where:\n *\n *  - keys are validation tokens (error names),\n *  - values are arrays of controls or forms that have a failing validator for given error name.\n *\n *  Built-in validation tokens:\n *\n *  - `email`\n *  - `max`\n *  - `maxlength`\n *  - `min`\n *  - `minlength`\n *  - `number`\n *  - `pattern`\n *  - `required`\n *  - `url`\n *  - `date`\n *  - `datetimelocal`\n *  - `time`\n *  - `week`\n *  - `month`\n *\n * @description\n * `FormController` keeps track of all its controls and nested forms as well as the state of them,\n * such as being valid/invalid or dirty/pristine.\n *\n * Each {@link ng.directive:form form} directive creates an instance\n * of `FormController`.\n *\n */\n//asks for $scope to fool the BC controller module\nFormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate'];\nfunction FormController(element, attrs, $scope, $animate, $interpolate) {\n  var form = this,\n      controls = [];\n\n  // init state\n  form.$error = {};\n  form.$$success = {};\n  form.$pending = undefined;\n  form.$name = $interpolate(attrs.name || attrs.ngForm || '')($scope);\n  form.$dirty = false;\n  form.$pristine = true;\n  form.$valid = true;\n  form.$invalid = false;\n  form.$submitted = false;\n  form.$$parentForm = nullFormCtrl;\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$rollbackViewValue\n   *\n   * @description\n   * Rollback all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is typically needed by the reset button of\n   * a form that uses `ng-model-options` to pend updates.\n   */\n  form.$rollbackViewValue = function() {\n    forEach(controls, function(control) {\n      control.$rollbackViewValue();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$commitViewValue\n   *\n   * @description\n   * Commit all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  form.$commitViewValue = function() {\n    forEach(controls, function(control) {\n      control.$commitViewValue();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$addControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Register a control with the form. Input elements using ngModelController do this automatically\n   * when they are linked.\n   *\n   * Note that the current state of the control will not be reflected on the new parent form. This\n   * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine`\n   * state.\n   *\n   * However, if the method is used programmatically, for example by adding dynamically created controls,\n   * or controls that have been previously removed without destroying their corresponding DOM element,\n   * it's the developers responsibility to make sure the current state propagates to the parent form.\n   *\n   * For example, if an input control is added that is already `$dirty` and has `$error` properties,\n   * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form.\n   */\n  form.$addControl = function(control) {\n    // Breaking change - before, inputs whose name was \"hasOwnProperty\" were quietly ignored\n    // and not added to the scope.  Now we throw an error.\n    assertNotHasOwnProperty(control.$name, 'input');\n    controls.push(control);\n\n    if (control.$name) {\n      form[control.$name] = control;\n    }\n\n    control.$$parentForm = form;\n  };\n\n  // Private API: rename a form control\n  form.$$renameControl = function(control, newName) {\n    var oldName = control.$name;\n\n    if (form[oldName] === control) {\n      delete form[oldName];\n    }\n    form[newName] = control;\n    control.$name = newName;\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$removeControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Deregister a control from the form.\n   *\n   * Input elements using ngModelController do this automatically when they are destroyed.\n   *\n   * Note that only the removed control's validation state (`$errors`etc.) will be removed from the\n   * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be\n   * different from case to case. For example, removing the only `$dirty` control from a form may or\n   * may not mean that the form is still `$dirty`.\n   */\n  form.$removeControl = function(control) {\n    if (control.$name && form[control.$name] === control) {\n      delete form[control.$name];\n    }\n    forEach(form.$pending, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n    forEach(form.$error, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n    forEach(form.$$success, function(value, name) {\n      form.$setValidity(name, null, control);\n    });\n\n    arrayRemove(controls, control);\n    control.$$parentForm = nullFormCtrl;\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setValidity\n   *\n   * @description\n   * Sets the validity of a form control.\n   *\n   * This method will also propagate to parent forms.\n   */\n  addSetValidityMethod({\n    ctrl: this,\n    $element: element,\n    set: function(object, property, controller) {\n      var list = object[property];\n      if (!list) {\n        object[property] = [controller];\n      } else {\n        var index = list.indexOf(controller);\n        if (index === -1) {\n          list.push(controller);\n        }\n      }\n    },\n    unset: function(object, property, controller) {\n      var list = object[property];\n      if (!list) {\n        return;\n      }\n      arrayRemove(list, controller);\n      if (list.length === 0) {\n        delete object[property];\n      }\n    },\n    $animate: $animate\n  });\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setDirty\n   *\n   * @description\n   * Sets the form to a dirty state.\n   *\n   * This method can be called to add the 'ng-dirty' class and set the form to a dirty\n   * state (ng-dirty class). This method will also propagate to parent forms.\n   */\n  form.$setDirty = function() {\n    $animate.removeClass(element, PRISTINE_CLASS);\n    $animate.addClass(element, DIRTY_CLASS);\n    form.$dirty = true;\n    form.$pristine = false;\n    form.$$parentForm.$setDirty();\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setPristine\n   *\n   * @description\n   * Sets the form to its pristine state.\n   *\n   * This method sets the form's `$pristine` state to true, the `$dirty` state to false, removes\n   * the `ng-dirty` class and adds the `ng-pristine` class. Additionally, it sets the `$submitted`\n   * state to false.\n   *\n   * This method will also propagate to all the controls contained in this form.\n   *\n   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after\n   * saving or resetting it.\n   */\n  form.$setPristine = function() {\n    $animate.setClass(element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS);\n    form.$dirty = false;\n    form.$pristine = true;\n    form.$submitted = false;\n    forEach(controls, function(control) {\n      control.$setPristine();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setUntouched\n   *\n   * @description\n   * Sets the form to its untouched state.\n   *\n   * This method can be called to remove the 'ng-touched' class and set the form controls to their\n   * untouched state (ng-untouched class).\n   *\n   * Setting a form controls back to their untouched state is often useful when setting the form\n   * back to its pristine state.\n   */\n  form.$setUntouched = function() {\n    forEach(controls, function(control) {\n      control.$setUntouched();\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setSubmitted\n   *\n   * @description\n   * Sets the form to its submitted state.\n   */\n  form.$setSubmitted = function() {\n    $animate.addClass(element, SUBMITTED_CLASS);\n    form.$submitted = true;\n    form.$$parentForm.$setSubmitted();\n  };\n}\n\n/**\n * @ngdoc directive\n * @name ngForm\n * @restrict EAC\n *\n * @description\n * Nestable alias of {@link ng.directive:form `form`} directive. HTML\n * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a\n * sub-group of controls needs to be determined.\n *\n * Note: the purpose of `ngForm` is to group controls,\n * but not to be a replacement for the `<form>` tag with all of its capabilities\n * (e.g. posting to the server, ...).\n *\n * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n *\n */\n\n /**\n * @ngdoc directive\n * @name form\n * @restrict E\n *\n * @description\n * Directive that instantiates\n * {@link form.FormController FormController}.\n *\n * If the `name` attribute is specified, the form controller is published onto the current scope under\n * this name.\n *\n * # Alias: {@link ng.directive:ngForm `ngForm`}\n *\n * In Angular, forms can be nested. This means that the outer form is valid when all of the child\n * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so\n * Angular provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to\n * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group\n * of controls needs to be determined.\n *\n * # CSS classes\n *  - `ng-valid` is set if the form is valid.\n *  - `ng-invalid` is set if the form is invalid.\n *  - `ng-pending` is set if the form is pending.\n *  - `ng-pristine` is set if the form is pristine.\n *  - `ng-dirty` is set if the form is dirty.\n *  - `ng-submitted` is set if the form was submitted.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n *\n * # Submitting a form and preventing the default action\n *\n * Since the role of forms in client-side Angular applications is different than in classical\n * roundtrip apps, it is desirable for the browser not to translate the form submission into a full\n * page reload that sends the data to the server. Instead some javascript logic should be triggered\n * to handle the form submission in an application-specific way.\n *\n * For this reason, Angular prevents the default action (form submission to the server) unless the\n * `<form>` element has an `action` attribute specified.\n *\n * You can use one of the following two ways to specify what javascript method should be called when\n * a form is submitted:\n *\n * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element\n * - {@link ng.directive:ngClick ngClick} directive on the first\n  *  button or input field of type submit (input[type=submit])\n *\n * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}\n * or {@link ng.directive:ngClick ngClick} directives.\n * This is because of the following form submission rules in the HTML specification:\n *\n * - If a form has only one input field then hitting enter in this field triggers form submit\n * (`ngSubmit`)\n * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter\n * doesn't trigger submit\n * - if a form has one or more input fields and one or more buttons or input[type=submit] then\n * hitting enter in any of the input fields will trigger the click handler on the *first* button or\n * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)\n *\n * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is\n * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * ## Animation Hooks\n *\n * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.\n * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any\n * other validations that are performed within the form. Animations in ngForm are similar to how\n * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well\n * as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style a form element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-form {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-form.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n    <example name=\"ng-form\" deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"formExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('formExample', [])\n           .controller('FormController', ['$scope', function($scope) {\n             $scope.userType = 'guest';\n           }]);\n       </script>\n       <style>\n        .my-form {\n          transition:all linear 0.5s;\n          background: transparent;\n        }\n        .my-form.ng-invalid {\n          background: red;\n        }\n       </style>\n       <form name=\"myForm\" ng-controller=\"FormController\" class=\"my-form\">\n         userType: <input name=\"input\" ng-model=\"userType\" required>\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">Required!</span><br>\n         <code>userType = {{userType}}</code><br>\n         <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br>\n         <code>myForm.input.$error = {{myForm.input.$error}}</code><br>\n         <code>myForm.$valid = {{myForm.$valid}}</code><br>\n         <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should initialize to model', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n\n          expect(userType.getText()).toContain('guest');\n          expect(valid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var userInput = element(by.model('userType'));\n\n          userInput.clear();\n          userInput.sendKeys('');\n\n          expect(userType.getText()).toEqual('userType =');\n          expect(valid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n *\n * @param {string=} name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n */\nvar formDirectiveFactory = function(isNgForm) {\n  return ['$timeout', '$parse', function($timeout, $parse) {\n    var formDirective = {\n      name: 'form',\n      restrict: isNgForm ? 'EAC' : 'E',\n      require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form\n      controller: FormController,\n      compile: function ngFormCompile(formElement, attr) {\n        // Setup initial state of the control\n        formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS);\n\n        var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false);\n\n        return {\n          pre: function ngFormPreLink(scope, formElement, attr, ctrls) {\n            var controller = ctrls[0];\n\n            // if `action` attr is not present on the form, prevent the default action (submission)\n            if (!('action' in attr)) {\n              // we can't use jq events because if a form is destroyed during submission the default\n              // action is not prevented. see #1238\n              //\n              // IE 9 is not affected because it doesn't fire a submit event and try to do a full\n              // page reload if the form was destroyed by submission of the form via a click handler\n              // on a button in the form. Looks like an IE9 specific bug.\n              var handleFormSubmission = function(event) {\n                scope.$apply(function() {\n                  controller.$commitViewValue();\n                  controller.$setSubmitted();\n                });\n\n                event.preventDefault();\n              };\n\n              addEventListenerFn(formElement[0], 'submit', handleFormSubmission);\n\n              // unregister the preventDefault listener so that we don't not leak memory but in a\n              // way that will achieve the prevention of the default action.\n              formElement.on('$destroy', function() {\n                $timeout(function() {\n                  removeEventListenerFn(formElement[0], 'submit', handleFormSubmission);\n                }, 0, false);\n              });\n            }\n\n            var parentFormCtrl = ctrls[1] || controller.$$parentForm;\n            parentFormCtrl.$addControl(controller);\n\n            var setter = nameAttr ? getSetter(controller.$name) : noop;\n\n            if (nameAttr) {\n              setter(scope, controller);\n              attr.$observe(nameAttr, function(newValue) {\n                if (controller.$name === newValue) return;\n                setter(scope, undefined);\n                controller.$$parentForm.$$renameControl(controller, newValue);\n                setter = getSetter(controller.$name);\n                setter(scope, controller);\n              });\n            }\n            formElement.on('$destroy', function() {\n              controller.$$parentForm.$removeControl(controller);\n              setter(scope, undefined);\n              extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards\n            });\n          }\n        };\n      }\n    };\n\n    return formDirective;\n\n    function getSetter(expression) {\n      if (expression === '') {\n        //create an assignable expression, so forms with an empty name can be renamed later\n        return $parse('this[\"\"]').assign;\n      }\n      return $parse(expression).assign || noop;\n    }\n  }];\n};\n\nvar formDirective = formDirectiveFactory();\nvar ngFormDirective = formDirectiveFactory(true);\n\n/* global\n  VALID_CLASS: false,\n  INVALID_CLASS: false,\n  PRISTINE_CLASS: false,\n  DIRTY_CLASS: false,\n  ngModelMinErr: false\n*/\n\n// Regex code was initially obtained from SO prior to modification: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231\nvar ISO_DATE_REGEXP = /^\\d{4,}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\d\\.\\d+(?:[+-][0-2]\\d:[0-5]\\d|Z)$/;\n// See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987)\n// Note: We are being more lenient, because browsers are too.\n//   1. Scheme\n//   2. Slashes\n//   3. Username\n//   4. Password\n//   5. Hostname\n//   6. Port\n//   7. Path\n//   8. Query\n//   9. Fragment\n//                 1111111111111111 222   333333    44444        55555555555555555555555     666     77777777     8888888     999\nvar URL_REGEXP = /^[a-z][a-z\\d.+-]*:\\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\\s:/?#]+|\\[[a-f\\d:]+])(?::\\d+)?(?:\\/[^?#]*)?(?:\\?[^#]*)?(?:#.*)?$/i;\n// eslint-disable-next-line max-len\nvar EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+(\\.[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+)*@[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?(\\.[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?)*$/;\nvar NUMBER_REGEXP = /^\\s*(-|\\+)?(\\d+|(\\d*(\\.\\d*)))([eE][+-]?\\d+)?\\s*$/;\nvar DATE_REGEXP = /^(\\d{4,})-(\\d{2})-(\\d{2})$/;\nvar DATETIMELOCAL_REGEXP = /^(\\d{4,})-(\\d\\d)-(\\d\\d)T(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\nvar WEEK_REGEXP = /^(\\d{4,})-W(\\d\\d)$/;\nvar MONTH_REGEXP = /^(\\d{4,})-(\\d\\d)$/;\nvar TIME_REGEXP = /^(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\n\nvar PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown';\nvar PARTIAL_VALIDATION_TYPES = createMap();\nforEach('date,datetime-local,month,time,week'.split(','), function(type) {\n  PARTIAL_VALIDATION_TYPES[type] = true;\n});\n\nvar inputType = {\n\n  /**\n   * @ngdoc input\n   * @name input[text]\n   *\n   * @description\n   * Standard HTML text input with angular data binding, inherited by most of the `input` elements.\n   *\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Adds `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n   *    This parameter is ignored for input[type=password] controls, which will never trim the\n   *    input.\n   *\n   * @example\n      <example name=\"text-input-directive\" module=\"textInputExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('textInputExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 text: 'guest',\n                 word: /^\\s*\\w*\\s*$/\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Single word:\n             <input type=\"text\" name=\"input\" ng-model=\"example.text\"\n                    ng-pattern=\"example.word\" required ng-trim=\"false\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.pattern\">\n               Single word only!</span>\n           </div>\n           <code>text = {{example.text}}</code><br/>\n           <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br/>\n           <code>myForm.input.$error = {{myForm.input.$error}}</code><br/>\n           <code>myForm.$valid = {{myForm.$valid}}</code><br/>\n           <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('example.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('guest');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if multi word', function() {\n            input.clear();\n            input.sendKeys('hello world');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'text': textInputType,\n\n    /**\n     * @ngdoc input\n     * @name input[date]\n     *\n     * @description\n     * Input with date validation and transformation. In browsers that do not yet support\n     * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601\n     * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many\n     * modern browsers do not yet support this input type, it is important to provide cues to users on the\n     * expected input format via a placeholder or label.\n     *\n     * The model must always be a Date object, otherwise Angular will throw an error.\n     * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n     *\n     * The timezone to be used to read/write the `Date` instance in the model can be defined using\n     * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n     *\n     * @param {string} ngModel Assignable angular expression to data-bind to.\n     * @param {string=} name Property name of the form under which the control is published.\n     * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n     *   valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `min=\"{{minDate | date:'yyyy-MM-dd'}}\"`). Note that `min` will also add native HTML5\n     *   constraint validation.\n     * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n     *   a valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `max=\"{{maxDate | date:'yyyy-MM-dd'}}\"`). Note that `max` will also add native HTML5\n     *   constraint validation.\n     * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO date string\n     *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n     * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO date string\n     *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n     * @param {string=} required Sets `required` validation error key if the value is not entered.\n     * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n     *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n     *    `required` when you want to data-bind to the `required` attribute.\n     * @param {string=} ngChange Angular expression to be executed when input changes due to user\n     *    interaction with the input element.\n     *\n     * @example\n     <example name=\"date-input-directive\" module=\"dateInputExample\">\n     <file name=\"index.html\">\n       <script>\n          angular.module('dateInputExample', [])\n            .controller('DateController', ['$scope', function($scope) {\n              $scope.example = {\n                value: new Date(2013, 9, 22)\n              };\n            }]);\n       </script>\n       <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n          <label for=\"exampleInput\">Pick a date in 2013:</label>\n          <input type=\"date\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n              placeholder=\"yyyy-MM-dd\" min=\"2013-01-01\" max=\"2013-12-31\" required />\n          <div role=\"alert\">\n            <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                Required!</span>\n            <span class=\"error\" ng-show=\"myForm.input.$error.date\">\n                Not a valid date!</span>\n           </div>\n           <tt>value = {{example.value | date: \"yyyy-MM-dd\"}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n       </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        var value = element(by.binding('example.value | date: \"yyyy-MM-dd\"'));\n        var valid = element(by.binding('myForm.input.$valid'));\n\n        // currently protractor/webdriver does not support\n        // sending keys to all known HTML5 input controls\n        // for various browsers (see https://github.com/angular/protractor/issues/562).\n        function setInput(val) {\n          // set the value of the element and force validation.\n          var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n          \"ipt.value = '\" + val + \"';\" +\n          \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n          browser.executeScript(scr);\n        }\n\n        it('should initialize to model', function() {\n          expect(value.getText()).toContain('2013-10-22');\n          expect(valid.getText()).toContain('myForm.input.$valid = true');\n        });\n\n        it('should be invalid if empty', function() {\n          setInput('');\n          expect(value.getText()).toEqual('value =');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n\n        it('should be invalid if over max', function() {\n          setInput('2015-01-01');\n          expect(value.getText()).toContain('');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n     </file>\n     </example>\n     */\n  'date': createDateInputType('date', DATE_REGEXP,\n         createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']),\n         'yyyy-MM-dd'),\n\n   /**\n    * @ngdoc input\n    * @name input[datetime-local]\n    *\n    * @description\n    * Input with datetime validation and transformation. In browsers that do not yet support\n    * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.\n    *\n    * The model must always be a Date object, otherwise Angular will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable angular expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `min=\"{{minDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `min` will also add native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `max=\"{{maxDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `max` will also add native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation error key to the Date / ISO datetime string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation error key to the Date / ISO datetime string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange Angular expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"datetimelocal-input-directive\" module=\"dateExample\">\n    <file name=\"index.html\">\n      <script>\n        angular.module('dateExample', [])\n          .controller('DateController', ['$scope', function($scope) {\n            $scope.example = {\n              value: new Date(2010, 11, 28, 14, 57)\n            };\n          }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a date between in 2013:</label>\n        <input type=\"datetime-local\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"yyyy-MM-ddTHH:mm:ss\" min=\"2001-01-01T00:00:00\" max=\"2013-12-31T00:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.datetimelocal\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-MM-ddTHH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM-ddTHH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2010-12-28T14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01-01T23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP,\n      createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']),\n      'yyyy-MM-ddTHH:mm:ss.sss'),\n\n  /**\n   * @ngdoc input\n   * @name input[time]\n   *\n   * @description\n   * Input with time validation and transformation. In browsers that do not yet support\n   * the HTML5 time input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a\n   * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.\n   *\n   * The model must always be a Date object, otherwise Angular will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minTime | date:'HH:mm:ss'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxTime | date:'HH:mm:ss'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO time string the\n   *   `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO time string the\n   *   `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"time-input-directive\" module=\"timeExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('timeExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(1970, 0, 1, 14, 57, 0)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a time between 8am and 5pm:</label>\n        <input type=\"time\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"HH:mm:ss\" min=\"08:00:00\" max=\"17:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.time\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"HH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"HH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'time': createDateInputType('time', TIME_REGEXP,\n      createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']),\n     'HH:mm:ss.sss'),\n\n   /**\n    * @ngdoc input\n    * @name input[week]\n    *\n    * @description\n    * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support\n    * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * week format (yyyy-W##), for example: `2013-W02`.\n    *\n    * The model must always be a Date object, otherwise Angular will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable angular expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `min=\"{{minWeek | date:'yyyy-Www'}}\"`). Note that `min` will also add\n    *   native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `max=\"{{maxWeek | date:'yyyy-Www'}}\"`). Note that `max` will also add\n    *   native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange Angular expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"week-input-directive\" module=\"weekExample\">\n    <file name=\"index.html\">\n      <script>\n      angular.module('weekExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 0, 3)\n          };\n        }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label>Pick a date between in 2013:\n          <input id=\"exampleInput\" type=\"week\" name=\"input\" ng-model=\"example.value\"\n                 placeholder=\"YYYY-W##\" min=\"2012-W32\"\n                 max=\"2013-W52\" required />\n        </label>\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.week\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-Www\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-Www\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-W01');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-W01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'),\n\n  /**\n   * @ngdoc input\n   * @name input[month]\n   *\n   * @description\n   * Input with month validation and transformation. In browsers that do not yet support\n   * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * month format (yyyy-MM), for example: `2009-01`.\n   *\n   * The model must always be a Date object, otherwise Angular will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   * If the model is not set to the first of the month, the next view to model update will set it\n   * to the first of the month.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minMonth | date:'yyyy-MM'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxMonth | date:'yyyy-MM'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n   *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n   *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"month-input-directive\" module=\"monthExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('monthExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 9, 1)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n       <label for=\"exampleInput\">Pick a month in 2013:</label>\n       <input id=\"exampleInput\" type=\"month\" name=\"input\" ng-model=\"example.value\"\n          placeholder=\"yyyy-MM\" min=\"2013-01\" max=\"2013-12\" required />\n       <div role=\"alert\">\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n         <span class=\"error\" ng-show=\"myForm.input.$error.month\">\n            Not a valid month!</span>\n       </div>\n       <tt>value = {{example.value | date: \"yyyy-MM\"}}</tt><br/>\n       <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n       <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n       <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n       <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-10');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'month': createDateInputType('month', MONTH_REGEXP,\n     createDateParser(MONTH_REGEXP, ['yyyy', 'MM']),\n     'yyyy-MM'),\n\n  /**\n   * @ngdoc input\n   * @name input[number]\n   *\n   * @description\n   * Text input with number validation and transformation. Sets the `number` validation\n   * error if not a valid number.\n   *\n   * <div class=\"alert alert-warning\">\n   * The model must always be of type `number` otherwise Angular will throw an error.\n   * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt}\n   * error docs for more information and an example of how to convert your model if necessary.\n   * </div>\n   *\n   * ## Issues with HTML5 constraint validation\n   *\n   * In browsers that follow the\n   * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29),\n   * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}.\n   * If a non-number is entered in the input, the browser will report the value as an empty string,\n   * which means the view / model values in `ngModel` and subsequently the scope value\n   * will also be an empty string.\n   *\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"number-input-directive\" module=\"numberExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('numberExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 value: 12\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Number:\n             <input type=\"number\" name=\"input\" ng-model=\"example.value\"\n                    min=\"0\" max=\"99\" required>\n          </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.number\">\n               Not valid number!</span>\n           </div>\n           <tt>value = {{example.value}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var value = element(by.binding('example.value'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.value'));\n\n          it('should initialize to model', function() {\n            expect(value.getText()).toContain('12');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if over max', function() {\n            input.clear();\n            input.sendKeys('123');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'number': numberInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[url]\n   *\n   * @description\n   * Text input with URL validation. Sets the `url` validation error key if the content is not a\n   * valid URL.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[url]` uses a regex to validate urls that is derived from the regex\n   * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify\n   * the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"url-input-directive\" module=\"urlExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('urlExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.url = {\n                 text: 'http://google.com'\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>URL:\n             <input type=\"url\" name=\"input\" ng-model=\"url.text\" required>\n           <label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.url\">\n               Not valid url!</span>\n           </div>\n           <tt>text = {{url.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('url.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('url.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('http://google.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not url', function() {\n            input.clear();\n            input.sendKeys('box');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'url': urlInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[email]\n   *\n   * @description\n   * Text input with email validation. Sets the `email` validation error key if not a valid email\n   * address.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex\n   * used in Chromium. If you need stricter validation (e.g. requiring a top-level domain), you can\n   * use `ng-pattern` or modify the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"email-input-directive\" module=\"emailExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('emailExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.email = {\n                 text: 'me@example.com'\n               };\n             }]);\n         </script>\n           <form name=\"myForm\" ng-controller=\"ExampleController\">\n             <label>Email:\n               <input type=\"email\" name=\"input\" ng-model=\"email.text\" required>\n             </label>\n             <div role=\"alert\">\n               <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                 Required!</span>\n               <span class=\"error\" ng-show=\"myForm.input.$error.email\">\n                 Not valid email!</span>\n             </div>\n             <tt>text = {{email.text}}</tt><br/>\n             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>\n           </form>\n         </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('email.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('email.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('me@example.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not email', function() {\n            input.clear();\n            input.sendKeys('xxx');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'email': emailInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[radio]\n   *\n   * @description\n   * HTML radio button.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string} value The value to which the `ngModel` expression should be set when selected.\n   *    Note that `value` only supports `string` values, i.e. the scope model needs to be a string,\n   *    too. Use `ngValue` if you need complex models (`number`, `object`, ...).\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {string} ngValue Angular expression to which `ngModel` will be be set when the radio\n   *    is selected. Should be used instead of the `value` attribute if you need\n   *    a non-string `ngModel` (`boolean`, `array`, ...).\n   *\n   * @example\n      <example name=\"radio-input-directive\" module=\"radioExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('radioExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.color = {\n                 name: 'blue'\n               };\n               $scope.specialValue = {\n                 \"id\": \"12345\",\n                 \"value\": \"green\"\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"red\">\n             Red\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" ng-value=\"specialValue\">\n             Green\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"blue\">\n             Blue\n           </label><br/>\n           <tt>color = {{color.name | json}}</tt><br/>\n          </form>\n          Note that `ng-value=\"specialValue\"` sets radio item's value to be the value of `$scope.specialValue`.\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var inputs = element.all(by.model('color.name'));\n            var color = element(by.binding('color.name'));\n\n            expect(color.getText()).toContain('blue');\n\n            inputs.get(0).click();\n            expect(color.getText()).toContain('red');\n\n            inputs.get(1).click();\n            expect(color.getText()).toContain('green');\n          });\n        </file>\n      </example>\n   */\n  'radio': radioInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[range]\n   *\n   * @description\n   * Native range input with validation and transformation.\n   *\n   * <div class=\"alert alert-warning\">\n   *   <p>\n   *     In v1.5.9+, in order to avoid interfering with already existing, custom directives for\n   *     `input[range]`, you need to let Angular know that you want to enable its built-in support.\n   *     You can do this by adding the `ng-input-range` attribute to the input element. E.g.:\n   *     `<input type=\"range\" ng-input-range ... />`\n   *   </p><br />\n   *   <p>\n   *     Input elements without the `ng-input-range` attibute will continue to be treated the same\n   *     as in previous versions (e.g. their model value will be a string not a number and Angular\n   *     will not take `min`/`max`/`step` attributes and properties into account).\n   *   </p><br />\n   *   <p>\n   *     **Note:** From v1.6.x onwards, the support for `input[range]` will be always enabled and\n   *     the `ng-input-range` attribute will have no effect.\n   *   </p><br />\n   *   <p>\n   *     This documentation page refers to elements which have the built-in support enabled; i.e.\n   *     elements _with_ the `ng-input-range` attribute.\n   *   </p>\n   * </div>\n   *\n   * The model for the range input must always be a `Number`.\n   *\n   * IE9 and other browsers that do not support the `range` type fall back\n   * to a text input without any default values for `min`, `max` and `step`. Model binding,\n   * validation and number parsing are nevertheless supported.\n   *\n   * Browsers that support range (latest Chrome, Safari, Firefox, Edge) treat `input[range]`\n   * in a way that never allows the input to hold an invalid value. That means:\n   * - any non-numerical value is set to `(max + min) / 2`.\n   * - any numerical value that is less than the current min val, or greater than the current max val\n   * is set to the min / max val respectively.\n   * - additionally, the current `step` is respected, so the nearest value that satisfies a step\n   * is used.\n   *\n   * See the [HTML Spec on input[type=range]](https://www.w3.org/TR/html5/forms.html#range-state-(type=range))\n   * for more info.\n   *\n   * This has the following consequences for Angular:\n   *\n   * Since the element value should always reflect the current model value, a range input\n   * will set the bound ngModel expression to the value that the browser has set for the\n   * input element. For example, in the following input `<input type=\"range\" ng-input-range ng-model=\"model.value\">`,\n   * if the application sets `model.value = null`, the browser will set the input to `'50'`.\n   * Angular will then set the model to `50`, to prevent input and model value being out of sync.\n   *\n   * That means the model for range will immediately be set to `50` after `ngModel` has been\n   * initialized. It also means a range input can never have the required error.\n   *\n   * This does not only affect changes to the model value, but also to the values of the `min`,\n   * `max`, and `step` attributes. When these change in a way that will cause the browser to modify\n   * the input value, Angular will also update the model value.\n   *\n   * Automatic value adjustment also means that a range input element can never have the `required`,\n   * `min`, or `max` errors.\n   *\n   * However, `step` is currently only fully implemented by Firefox. Other browsers have problems\n   * when the step value changes dynamically - they do not adjust the element value correctly, but\n   * instead may set the `stepMismatch` error. If that's the case, the Angular will set the `step`\n   * error on the input, and set the model to `undefined`.\n   *\n   * Note that `input[range]` is not compatible with `ngMax`, `ngMin`, and `ngStep`, because they do\n   * not set the `min` and `max` attributes, which means that the browser won't automatically adjust\n   * the input value based on their values, and will always assume min = 0, max = 100, and step = 1.\n   *\n   * @param           ngInputRange The presense of this attribute enables the built-in support for\n   *                  `input[range]`.\n   * @param {string}  ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation to ensure that the value entered is greater\n   *                  than `min`. Can be interpolated.\n   * @param {string=} max Sets the `max` validation to ensure that the value entered is less than `max`.\n   *                  Can be interpolated.\n   * @param {string=} step Sets the `step` validation to ensure that the value entered matches the `step`\n   *                  Can be interpolated.\n   * @param {string=} ngChange Angular expression to be executed when the ngModel value changes due\n   *                  to user interaction with the input element.\n   * @param {expression=} ngChecked If the expression is truthy, then the `checked` attribute will be set on the\n   *                      element. **Note** : `ngChecked` should not be used alongside `ngModel`.\n   *                      Checkout {@link ng.directive:ngChecked ngChecked} for usage.\n   *\n   * @example\n      <example name=\"range-input-directive\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n\n            Model as range: <input type=\"range\" ng-input-range name=\"range\" ng-model=\"value\" min=\"{{min}}\"  max=\"{{max}}\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   * ## Range Input with ngMin & ngMax attributes\n\n   * @example\n      <example name=\"range-input-directive-ng\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n            Model as range: <input type=\"range\" ng-input-range name=\"range\" ng-model=\"value\" ng-min=\"min\" ng-max=\"max\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   */\n  'range': rangeInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[checkbox]\n   *\n   * @description\n   * HTML checkbox.\n   *\n   * @param {string} ngModel Assignable angular expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {expression=} ngTrueValue The value to which the expression should be set when selected.\n   * @param {expression=} ngFalseValue The value to which the expression should be set when not selected.\n   * @param {string=} ngChange Angular expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"checkbox-input-directive\" module=\"checkboxExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('checkboxExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.checkboxModel = {\n                value1 : true,\n                value2 : 'YES'\n              };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Value1:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value1\">\n           </label><br/>\n           <label>Value2:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value2\"\n                    ng-true-value=\"'YES'\" ng-false-value=\"'NO'\">\n            </label><br/>\n           <tt>value1 = {{checkboxModel.value1}}</tt><br/>\n           <tt>value2 = {{checkboxModel.value2}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var value1 = element(by.binding('checkboxModel.value1'));\n            var value2 = element(by.binding('checkboxModel.value2'));\n\n            expect(value1.getText()).toContain('true');\n            expect(value2.getText()).toContain('YES');\n\n            element(by.model('checkboxModel.value1')).click();\n            element(by.model('checkboxModel.value2')).click();\n\n            expect(value1.getText()).toContain('false');\n            expect(value2.getText()).toContain('NO');\n          });\n        </file>\n      </example>\n   */\n  'checkbox': checkboxInputType,\n\n  'hidden': noop,\n  'button': noop,\n  'submit': noop,\n  'reset': noop,\n  'file': noop\n};\n\nfunction stringBasedInputType(ctrl) {\n  ctrl.$formatters.push(function(value) {\n    return ctrl.$isEmpty(value) ? value : value.toString();\n  });\n}\n\nfunction textInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n}\n\nfunction baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  var type = lowercase(element[0].type);\n\n  // In composition mode, users are still inputting intermediate text buffer,\n  // hold the listener until composition is done.\n  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent\n  if (!$sniffer.android) {\n    var composing = false;\n\n    element.on('compositionstart', function() {\n      composing = true;\n    });\n\n    element.on('compositionend', function() {\n      composing = false;\n      listener();\n    });\n  }\n\n  var timeout;\n\n  var listener = function(ev) {\n    if (timeout) {\n      $browser.defer.cancel(timeout);\n      timeout = null;\n    }\n    if (composing) return;\n    var value = element.val(),\n        event = ev && ev.type;\n\n    // By default we will trim the value\n    // If the attribute ng-trim exists we will avoid trimming\n    // If input type is 'password', the value is never trimmed\n    if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) {\n      value = trim(value);\n    }\n\n    // If a control is suffering from bad input (due to native validators), browsers discard its\n    // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the\n    // control's value is the same empty value twice in a row.\n    if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) {\n      ctrl.$setViewValue(value, event);\n    }\n  };\n\n  // if the browser does support \"input\" event, we are fine - except on IE9 which doesn't fire the\n  // input event on backspace, delete or cut\n  if ($sniffer.hasEvent('input')) {\n    element.on('input', listener);\n  } else {\n    var deferListener = function(ev, input, origValue) {\n      if (!timeout) {\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (!input || input.value !== origValue) {\n            listener(ev);\n          }\n        });\n      }\n    };\n\n    element.on('keydown', /** @this */ function(event) {\n      var key = event.keyCode;\n\n      // ignore\n      //    command            modifiers                   arrows\n      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;\n\n      deferListener(event, this, this.value);\n    });\n\n    // if user modifies input value using context menu in IE, we need \"paste\" and \"cut\" events to catch it\n    if ($sniffer.hasEvent('paste')) {\n      element.on('paste cut', deferListener);\n    }\n  }\n\n  // if user paste into input using mouse on older browser\n  // or form autocomplete on newer browser, we need \"change\" event to catch it\n  element.on('change', listener);\n\n  // Some native input types (date-family) have the ability to change validity without\n  // firing any input/change events.\n  // For these event types, when native validators are present and the browser supports the type,\n  // check for validity changes on various DOM events.\n  if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) {\n    element.on(PARTIAL_VALIDATION_EVENTS, /** @this */ function(ev) {\n      if (!timeout) {\n        var validity = this[VALIDITY_STATE_PROPERTY];\n        var origBadInput = validity.badInput;\n        var origTypeMismatch = validity.typeMismatch;\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) {\n            listener(ev);\n          }\n        });\n      }\n    });\n  }\n\n  ctrl.$render = function() {\n    // Workaround for Firefox validation #12102.\n    var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue;\n    if (element.val() !== value) {\n      element.val(value);\n    }\n  };\n}\n\nfunction weekParser(isoWeek, existingDate) {\n  if (isDate(isoWeek)) {\n    return isoWeek;\n  }\n\n  if (isString(isoWeek)) {\n    WEEK_REGEXP.lastIndex = 0;\n    var parts = WEEK_REGEXP.exec(isoWeek);\n    if (parts) {\n      var year = +parts[1],\n          week = +parts[2],\n          hours = 0,\n          minutes = 0,\n          seconds = 0,\n          milliseconds = 0,\n          firstThurs = getFirstThursdayOfYear(year),\n          addDays = (week - 1) * 7;\n\n      if (existingDate) {\n        hours = existingDate.getHours();\n        minutes = existingDate.getMinutes();\n        seconds = existingDate.getSeconds();\n        milliseconds = existingDate.getMilliseconds();\n      }\n\n      return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds);\n    }\n  }\n\n  return NaN;\n}\n\nfunction createDateParser(regexp, mapping) {\n  return function(iso, date) {\n    var parts, map;\n\n    if (isDate(iso)) {\n      return iso;\n    }\n\n    if (isString(iso)) {\n      // When a date is JSON'ified to wraps itself inside of an extra\n      // set of double quotes. This makes the date parsing code unable\n      // to match the date string and parse it as a date.\n      if (iso.charAt(0) === '\"' && iso.charAt(iso.length - 1) === '\"') {\n        iso = iso.substring(1, iso.length - 1);\n      }\n      if (ISO_DATE_REGEXP.test(iso)) {\n        return new Date(iso);\n      }\n      regexp.lastIndex = 0;\n      parts = regexp.exec(iso);\n\n      if (parts) {\n        parts.shift();\n        if (date) {\n          map = {\n            yyyy: date.getFullYear(),\n            MM: date.getMonth() + 1,\n            dd: date.getDate(),\n            HH: date.getHours(),\n            mm: date.getMinutes(),\n            ss: date.getSeconds(),\n            sss: date.getMilliseconds() / 1000\n          };\n        } else {\n          map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 };\n        }\n\n        forEach(parts, function(part, index) {\n          if (index < mapping.length) {\n            map[mapping[index]] = +part;\n          }\n        });\n        return new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0);\n      }\n    }\n\n    return NaN;\n  };\n}\n\nfunction createDateInputType(type, regexp, parseDate, format) {\n  return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter) {\n    badInputChecker(scope, element, attr, ctrl);\n    baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n    var timezone = ctrl && ctrl.$options && ctrl.$options.timezone;\n    var previousDate;\n\n    ctrl.$$parserName = type;\n    ctrl.$parsers.push(function(value) {\n      if (ctrl.$isEmpty(value)) return null;\n      if (regexp.test(value)) {\n        // Note: We cannot read ctrl.$modelValue, as there might be a different\n        // parser/formatter in the processing chain so that the model\n        // contains some different data format!\n        var parsedDate = parseDate(value, previousDate);\n        if (timezone) {\n          parsedDate = convertTimezoneToLocal(parsedDate, timezone);\n        }\n        return parsedDate;\n      }\n      return undefined;\n    });\n\n    ctrl.$formatters.push(function(value) {\n      if (value && !isDate(value)) {\n        throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value);\n      }\n      if (isValidDate(value)) {\n        previousDate = value;\n        if (previousDate && timezone) {\n          previousDate = convertTimezoneToLocal(previousDate, timezone, true);\n        }\n        return $filter('date')(value, format, timezone);\n      } else {\n        previousDate = null;\n        return '';\n      }\n    });\n\n    if (isDefined(attr.min) || attr.ngMin) {\n      var minVal;\n      ctrl.$validators.min = function(value) {\n        return !isValidDate(value) || isUndefined(minVal) || parseDate(value) >= minVal;\n      };\n      attr.$observe('min', function(val) {\n        minVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    if (isDefined(attr.max) || attr.ngMax) {\n      var maxVal;\n      ctrl.$validators.max = function(value) {\n        return !isValidDate(value) || isUndefined(maxVal) || parseDate(value) <= maxVal;\n      };\n      attr.$observe('max', function(val) {\n        maxVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    function isValidDate(value) {\n      // Invalid Date: getTime() returns NaN\n      return value && !(value.getTime && value.getTime() !== value.getTime());\n    }\n\n    function parseObservedDateValue(val) {\n      return isDefined(val) && !isDate(val) ? parseDate(val) || undefined : val;\n    }\n  };\n}\n\nfunction badInputChecker(scope, element, attr, ctrl) {\n  var node = element[0];\n  var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity);\n  if (nativeValidation) {\n    ctrl.$parsers.push(function(value) {\n      var validity = element.prop(VALIDITY_STATE_PROPERTY) || {};\n      return validity.badInput || validity.typeMismatch ? undefined : value;\n    });\n  }\n}\n\nfunction numberFormatterParser(ctrl) {\n  ctrl.$$parserName = 'number';\n  ctrl.$parsers.push(function(value) {\n    if (ctrl.$isEmpty(value))      return null;\n    if (NUMBER_REGEXP.test(value)) return parseFloat(value);\n    return undefined;\n  });\n\n  ctrl.$formatters.push(function(value) {\n    if (!ctrl.$isEmpty(value)) {\n      if (!isNumber(value)) {\n        throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value);\n      }\n      value = value.toString();\n    }\n    return value;\n  });\n}\n\nfunction parseNumberAttrVal(val) {\n  if (isDefined(val) && !isNumber(val)) {\n    val = parseFloat(val);\n  }\n  return !isNumberNaN(val) ? val : undefined;\n}\n\nfunction isNumberInteger(num) {\n  // See http://stackoverflow.com/questions/14636536/how-to-check-if-a-variable-is-an-integer-in-javascript#14794066\n  // (minus the assumption that `num` is a number)\n\n  // eslint-disable-next-line no-bitwise\n  return (num | 0) === num;\n}\n\nfunction countDecimals(num) {\n  var numString = num.toString();\n  var decimalSymbolIndex = numString.indexOf('.');\n\n  if (decimalSymbolIndex === -1) {\n    if (-1 < num && num < 1) {\n      // It may be in the exponential notation format (`1e-X`)\n      var match = /e-(\\d+)$/.exec(numString);\n\n      if (match) {\n        return Number(match[1]);\n      }\n    }\n\n    return 0;\n  }\n\n  return numString.length - decimalSymbolIndex - 1;\n}\n\nfunction isValidForStep(viewValue, stepBase, step) {\n  // At this point `stepBase` and `step` are expected to be non-NaN values\n  // and `viewValue` is expected to be a valid stringified number.\n  var value = Number(viewValue);\n\n  // Due to limitations in Floating Point Arithmetic (e.g. `0.3 - 0.2 !== 0.1` or\n  // `0.5 % 0.1 !== 0`), we need to convert all numbers to integers.\n  if (!isNumberInteger(value) || !isNumberInteger(stepBase) || !isNumberInteger(step)) {\n    var decimalCount = Math.max(countDecimals(value), countDecimals(stepBase), countDecimals(step));\n    var multiplier = Math.pow(10, decimalCount);\n\n    value = value * multiplier;\n    stepBase = stepBase * multiplier;\n    step = step * multiplier;\n  }\n\n  return (value - stepBase) % step === 0;\n}\n\nfunction numberInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  numberFormatterParser(ctrl);\n\n  var minVal;\n  var maxVal;\n\n  if (isDefined(attr.min) || attr.ngMin) {\n    ctrl.$validators.min = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(minVal) || value >= minVal;\n    };\n\n    attr.$observe('min', function(val) {\n      minVal = parseNumberAttrVal(val);\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n\n  if (isDefined(attr.max) || attr.ngMax) {\n    ctrl.$validators.max = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(maxVal) || value <= maxVal;\n    };\n\n    attr.$observe('max', function(val) {\n      maxVal = parseNumberAttrVal(val);\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n}\n\nfunction rangeInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl);\n  numberFormatterParser(ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var supportsRange = ctrl.$$hasNativeValidators && element[0].type === 'range',\n      minVal = supportsRange ? 0 : undefined,\n      maxVal = supportsRange ? 100 : undefined,\n      stepVal = supportsRange ? 1 : undefined,\n      validity = element[0].validity,\n      hasMinAttr = isDefined(attr.min),\n      hasMaxAttr = isDefined(attr.max),\n      hasStepAttr = isDefined(attr.step);\n\n  var originalRender = ctrl.$render;\n\n  ctrl.$render = supportsRange && isDefined(validity.rangeUnderflow) && isDefined(validity.rangeOverflow) ?\n    //Browsers that implement range will set these values automatically, but reading the adjusted values after\n    //$render would cause the min / max validators to be applied with the wrong value\n    function rangeRender() {\n      originalRender();\n      ctrl.$setViewValue(element.val());\n    } :\n    originalRender;\n\n  if (hasMinAttr) {\n    ctrl.$validators.min = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMinValidator() { return true; } :\n      // non-support browsers validate the min val\n      function minValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(minVal) || viewValue >= minVal;\n      };\n\n    setInitialValueAndObserver('min', minChange);\n  }\n\n  if (hasMaxAttr) {\n    ctrl.$validators.max = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMaxValidator() { return true; } :\n      // non-support browsers validate the max val\n      function maxValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(maxVal) || viewValue <= maxVal;\n      };\n\n    setInitialValueAndObserver('max', maxChange);\n  }\n\n  if (hasStepAttr) {\n    ctrl.$validators.step = supportsRange ?\n      function nativeStepValidator() {\n        // Currently, only FF implements the spec on step change correctly (i.e. adjusting the\n        // input element value to a valid value). It's possible that other browsers set the stepMismatch\n        // validity error instead, so we can at least report an error in that case.\n        return !validity.stepMismatch;\n      } :\n      // ngStep doesn't set the setp attr, so the browser doesn't adjust the input value as setting step would\n      function stepValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(stepVal) ||\n               isValidForStep(viewValue, minVal || 0, stepVal);\n      };\n\n    setInitialValueAndObserver('step', stepChange);\n  }\n\n  function setInitialValueAndObserver(htmlAttrName, changeFn) {\n    // interpolated attributes set the attribute value only after a digest, but we need the\n    // attribute value when the input is first rendered, so that the browser can adjust the\n    // input value based on the min/max value\n    element.attr(htmlAttrName, attr[htmlAttrName]);\n    attr.$observe(htmlAttrName, changeFn);\n  }\n\n  function minChange(val) {\n    minVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the minVal is greater than the element value\n      if (minVal > elVal) {\n        elVal = minVal;\n        element.val(elVal);\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function maxChange(val) {\n    maxVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the maxVal is less than the element value\n      if (maxVal < elVal) {\n        element.val(maxVal);\n        // IE11 and Chrome don't set the value to the minVal when max < min\n        elVal = maxVal < minVal ? minVal : maxVal;\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function stepChange(val) {\n    stepVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    // Some browsers don't adjust the input value correctly, but set the stepMismatch error\n    if (supportsRange && ctrl.$viewValue !== element.val()) {\n      ctrl.$setViewValue(element.val());\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n}\n\nfunction urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'url';\n  ctrl.$validators.url = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || URL_REGEXP.test(value);\n  };\n}\n\nfunction emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'email';\n  ctrl.$validators.email = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value);\n  };\n}\n\nfunction radioInputType(scope, element, attr, ctrl) {\n  // make the name unique, if not defined\n  if (isUndefined(attr.name)) {\n    element.attr('name', nextUid());\n  }\n\n  var listener = function(ev) {\n    if (element[0].checked) {\n      ctrl.$setViewValue(attr.value, ev && ev.type);\n    }\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    var value = attr.value;\n    // We generally use strict comparison. This is behavior we cannot change without a BC.\n    // eslint-disable-next-line eqeqeq\n    element[0].checked = (value == ctrl.$viewValue);\n  };\n\n  attr.$observe('value', ctrl.$render);\n}\n\nfunction parseConstantExpr($parse, context, name, expression, fallback) {\n  var parseFn;\n  if (isDefined(expression)) {\n    parseFn = $parse(expression);\n    if (!parseFn.constant) {\n      throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' +\n                                   '`{1}`.', name, expression);\n    }\n    return parseFn(context);\n  }\n  return fallback;\n}\n\nfunction checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true);\n  var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false);\n\n  var listener = function(ev) {\n    ctrl.$setViewValue(element[0].checked, ev && ev.type);\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    element[0].checked = ctrl.$viewValue;\n  };\n\n  // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false`\n  // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert\n  // it to a boolean.\n  ctrl.$isEmpty = function(value) {\n    return value === false;\n  };\n\n  ctrl.$formatters.push(function(value) {\n    return equals(value, trueValue);\n  });\n\n  ctrl.$parsers.push(function(value) {\n    return value ? trueValue : falseValue;\n  });\n}\n\n\n/**\n * @ngdoc directive\n * @name textarea\n * @restrict E\n *\n * @description\n * HTML textarea element control with angular data-binding. The data-binding and validation\n * properties of this element are exactly the same as those of the\n * {@link ng.directive:input input element}.\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n *\n * @knownIssue\n *\n * When specifying the `placeholder` attribute of `<textarea>`, Internet Explorer will temporarily\n * insert the placeholder value as the textarea's content. If the placeholder value contains\n * interpolation (`{{ ... }}`), an error will be logged in the console when Angular tries to update\n * the value of the by-then-removed text node. This doesn't affect the functionality of the\n * textarea, but can be undesirable.\n *\n * You can work around this Internet Explorer issue by using `ng-attr-placeholder` instead of\n * `placeholder` on textareas, whenever you need interpolation in the placeholder value. You can\n * find more details on `ngAttr` in the\n * [Interpolation](guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes) section of the\n * Developer Guide.\n */\n\n\n/**\n * @ngdoc directive\n * @name input\n * @restrict E\n *\n * @description\n * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding,\n * input state control, and validation.\n * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Not every feature offered is available for all input types.\n * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`.\n * </div>\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {boolean=} ngRequired Sets `required` attribute if set to true\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    value does not match a RegExp found by evaluating the Angular expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange Angular expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.\n *    This parameter is ignored for input[type=password] controls, which will never trim the\n *    input.\n *\n * @example\n    <example name=\"input-directive\" module=\"inputExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('inputExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.user = {name: 'guest', last: 'visitor'};\n            }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <form name=\"myForm\">\n           <label>\n              User name:\n              <input type=\"text\" name=\"userName\" ng-model=\"user.name\" required>\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.userName.$error.required\">\n              Required!</span>\n           </div>\n           <label>\n              Last name:\n              <input type=\"text\" name=\"lastName\" ng-model=\"user.last\"\n              ng-minlength=\"3\" ng-maxlength=\"10\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.minlength\">\n               Too short!</span>\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.maxlength\">\n               Too long!</span>\n           </div>\n         </form>\n         <hr>\n         <tt>user = {{user}}</tt><br/>\n         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br/>\n         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br/>\n         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br/>\n         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br/>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br/>\n         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br/>\n       </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var user = element(by.exactBinding('user'));\n        var userNameValid = element(by.binding('myForm.userName.$valid'));\n        var lastNameValid = element(by.binding('myForm.lastName.$valid'));\n        var lastNameError = element(by.binding('myForm.lastName.$error'));\n        var formValid = element(by.binding('myForm.$valid'));\n        var userNameInput = element(by.model('user.name'));\n        var userLastInput = element(by.model('user.last'));\n\n        it('should initialize to model', function() {\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty when required', function() {\n          userNameInput.clear();\n          userNameInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('false');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be valid if empty when min length is set', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"\"}');\n          expect(lastNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if less than required min length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('xx');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('minlength');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be invalid if longer than max length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('some ridiculously long name');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('maxlength');\n          expect(formValid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n */\nvar inputDirective = ['$browser', '$sniffer', '$filter', '$parse',\n    function($browser, $sniffer, $filter, $parse) {\n  return {\n    restrict: 'E',\n    require: ['?ngModel'],\n    link: {\n      pre: function(scope, element, attr, ctrls) {\n        if (ctrls[0]) {\n          var type = lowercase(attr.type);\n          if ((type === 'range') && !attr.hasOwnProperty('ngInputRange')) {\n            type = 'text';\n          }\n          (inputType[type] || inputType.text)(scope, element, attr, ctrls[0], $sniffer,\n                                                              $browser, $filter, $parse);\n        }\n      }\n    }\n  };\n}];\n\n\n\nvar CONSTANT_VALUE_REGEXP = /^(true|false|\\d+)$/;\n/**\n * @ngdoc directive\n * @name ngValue\n *\n * @description\n * Binds the given expression to the value of `<option>` or {@link input[radio] `input[radio]`},\n * so that when the element is selected, the {@link ngModel `ngModel`} of that element is set to\n * the bound value.\n *\n * `ngValue` is useful when dynamically generating lists of radio buttons using\n * {@link ngRepeat `ngRepeat`}, as shown below.\n *\n * Likewise, `ngValue` can be used to generate `<option>` elements for\n * the {@link select `select`} element. In that case however, only strings are supported\n * for the `value `attribute, so the resulting `ngModel` will always be a string.\n * Support for `select` models with non-string values is available via `ngOptions`.\n *\n * @element input\n * @param {string=} ngValue angular expression, whose value will be bound to the `value` attribute\n *   of the `input` element\n *\n * @example\n    <example name=\"ngValue-directive\" module=\"valueExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('valueExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.names = ['pizza', 'unicorns', 'robots'];\n              $scope.my = { favorite: 'unicorns' };\n            }]);\n       </script>\n        <form ng-controller=\"ExampleController\">\n          <h2>Which is your favorite?</h2>\n            <label ng-repeat=\"name in names\" for=\"{{name}}\">\n              {{name}}\n              <input type=\"radio\"\n                     ng-model=\"my.favorite\"\n                     ng-value=\"name\"\n                     id=\"{{name}}\"\n                     name=\"favorite\">\n            </label>\n          <div>You chose {{my.favorite}}</div>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var favorite = element(by.binding('my.favorite'));\n\n        it('should initialize to model', function() {\n          expect(favorite.getText()).toContain('unicorns');\n        });\n        it('should bind the values to the inputs', function() {\n          element.all(by.model('my.favorite')).get(0).click();\n          expect(favorite.getText()).toContain('pizza');\n        });\n      </file>\n    </example>\n */\nvar ngValueDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    compile: function(tpl, tplAttr) {\n      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {\n        return function ngValueConstantLink(scope, elm, attr) {\n          attr.$set('value', scope.$eval(attr.ngValue));\n        };\n      } else {\n        return function ngValueLink(scope, elm, attr) {\n          scope.$watch(attr.ngValue, function valueWatchAction(value) {\n            attr.$set('value', value);\n          });\n        };\n      }\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngBind\n * @restrict AC\n *\n * @description\n * The `ngBind` attribute tells Angular to replace the text content of the specified HTML element\n * with the value of a given expression, and to update the text content when the value of that\n * expression changes.\n *\n * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like\n * `{{ expression }}` which is similar but less verbose.\n *\n * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily\n * displayed by the browser in its raw state before Angular compiles it. Since `ngBind` is an\n * element attribute, it makes the bindings invisible to the user while the page is loading.\n *\n * An alternative solution to this problem would be using the\n * {@link ng.directive:ngCloak ngCloak} directive.\n *\n *\n * @element ANY\n * @param {expression} ngBind {@link guide/expression Expression} to evaluate.\n *\n * @example\n * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.\n   <example module=\"bindExample\" name=\"ng-bind\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.name = 'Whirled';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter name: <input type=\"text\" ng-model=\"name\"></label><br>\n         Hello <span ng-bind=\"name\"></span>!\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var nameInput = element(by.model('name'));\n\n         expect(element(by.binding('name')).getText()).toBe('Whirled');\n         nameInput.clear();\n         nameInput.sendKeys('world');\n         expect(element(by.binding('name')).getText()).toBe('world');\n       });\n     </file>\n   </example>\n */\nvar ngBindDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'AC',\n    compile: function ngBindCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBind);\n        element = element[0];\n        scope.$watch(attr.ngBind, function ngBindWatchAction(value) {\n          element.textContent = isUndefined(value) ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindTemplate\n *\n * @description\n * The `ngBindTemplate` directive specifies that the element\n * text content should be replaced with the interpolation of the template\n * in the `ngBindTemplate` attribute.\n * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`\n * expressions. This directive is needed since some HTML elements\n * (such as TITLE and OPTION) cannot contain SPAN elements.\n *\n * @element ANY\n * @param {string} ngBindTemplate template of form\n *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.\n *\n * @example\n * Try it here: enter text in text box and watch the greeting change.\n   <example module=\"bindExample\" name=\"ng-bind-template\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.salutation = 'Hello';\n             $scope.name = 'World';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n        <label>Salutation: <input type=\"text\" ng-model=\"salutation\"></label><br>\n        <label>Name: <input type=\"text\" ng-model=\"name\"></label><br>\n        <pre ng-bind-template=\"{{salutation}} {{name}}!\"></pre>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var salutationElem = element(by.binding('salutation'));\n         var salutationInput = element(by.model('salutation'));\n         var nameInput = element(by.model('name'));\n\n         expect(salutationElem.getText()).toBe('Hello World!');\n\n         salutationInput.clear();\n         salutationInput.sendKeys('Greetings');\n         nameInput.clear();\n         nameInput.sendKeys('user');\n\n         expect(salutationElem.getText()).toBe('Greetings user!');\n       });\n     </file>\n   </example>\n */\nvar ngBindTemplateDirective = ['$interpolate', '$compile', function($interpolate, $compile) {\n  return {\n    compile: function ngBindTemplateCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindTemplateLink(scope, element, attr) {\n        var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));\n        $compile.$$addBindingInfo(element, interpolateFn.expressions);\n        element = element[0];\n        attr.$observe('ngBindTemplate', function(value) {\n          element.textContent = isUndefined(value) ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindHtml\n *\n * @description\n * Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default,\n * the resulting HTML content will be sanitized using the {@link ngSanitize.$sanitize $sanitize} service.\n * To utilize this functionality, ensure that `$sanitize` is available, for example, by including {@link\n * ngSanitize} in your module's dependencies (not in core Angular). In order to use {@link ngSanitize}\n * in your module's dependencies, you need to include \"angular-sanitize.js\" in your application.\n *\n * You may also bypass sanitization for values you know are safe. To do so, bind to\n * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example\n * under {@link ng.$sce#show-me-an-example-using-sce- Strict Contextual Escaping (SCE)}.\n *\n * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you\n * will have an exception (instead of an exploit.)\n *\n * @element ANY\n * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.\n *\n * @example\n\n   <example module=\"bindHtmlExample\" deps=\"angular-sanitize.js\" name=\"ng-bind-html\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n        <p ng-bind-html=\"myHTML\"></p>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n       angular.module('bindHtmlExample', ['ngSanitize'])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.myHTML =\n              'I am an <code>HTML</code>string with ' +\n              '<a href=\"#\">links!</a> and other <em>stuff</em>';\n         }]);\n     </file>\n\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind-html', function() {\n         expect(element(by.binding('myHTML')).getText()).toBe(\n             'I am an HTMLstring with links! and other stuff');\n       });\n     </file>\n   </example>\n */\nvar ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {\n  return {\n    restrict: 'A',\n    compile: function ngBindHtmlCompile(tElement, tAttrs) {\n      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);\n      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function sceValueOf(val) {\n        // Unwrap the value to compare the actual inner safe value, not the wrapper object.\n        return $sce.valueOf(val);\n      });\n      $compile.$$addBindingClass(tElement);\n\n      return function ngBindHtmlLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBindHtml);\n\n        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {\n          // The watched value is the unwrapped value. To avoid re-escaping, use the direct getter.\n          var value = ngBindHtmlGetter(scope);\n          element.html($sce.getTrustedHtml(value) || '');\n        });\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngChange\n *\n * @description\n * Evaluate the given expression when the user changes the input.\n * The expression is evaluated immediately, unlike the JavaScript onchange event\n * which only triggers at the end of a change (usually, when the user leaves the\n * form element or presses the return key).\n *\n * The `ngChange` expression is only evaluated when a change in the input value causes\n * a new value to be committed to the model.\n *\n * It will not be evaluated:\n * * if the value returned from the `$parsers` transformation pipeline has not changed\n * * if the input has continued to be invalid since the model will stay `null`\n * * if the model is changed programmatically and not by a change to the input value\n *\n *\n * Note, this directive requires `ngModel` to be present.\n *\n * @element input\n * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change\n * in input value.\n *\n * @example\n * <example name=\"ngChange-directive\" module=\"changeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('changeExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.counter = 0;\n *           $scope.change = function() {\n *             $scope.counter++;\n *           };\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input type=\"checkbox\" ng-model=\"confirmed\" ng-change=\"change()\" id=\"ng-change-example1\" />\n *       <input type=\"checkbox\" ng-model=\"confirmed\" id=\"ng-change-example2\" />\n *       <label for=\"ng-change-example2\">Confirmed</label><br />\n *       <tt>debug = {{confirmed}}</tt><br/>\n *       <tt>counter = {{counter}}</tt><br/>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var counter = element(by.binding('counter'));\n *     var debug = element(by.binding('confirmed'));\n *\n *     it('should evaluate the expression if changing from view', function() {\n *       expect(counter.getText()).toContain('0');\n *\n *       element(by.id('ng-change-example1')).click();\n *\n *       expect(counter.getText()).toContain('1');\n *       expect(debug.getText()).toContain('true');\n *     });\n *\n *     it('should not evaluate the expression if changing from model', function() {\n *       element(by.id('ng-change-example2')).click();\n\n *       expect(counter.getText()).toContain('0');\n *       expect(debug.getText()).toContain('true');\n *     });\n *   </file>\n * </example>\n */\nvar ngChangeDirective = valueFn({\n  restrict: 'A',\n  require: 'ngModel',\n  link: function(scope, element, attr, ctrl) {\n    ctrl.$viewChangeListeners.push(function() {\n      scope.$eval(attr.ngChange);\n    });\n  }\n});\n\n/* exported\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective\n*/\n\nfunction classDirective(name, selector) {\n  name = 'ngClass' + name;\n  return ['$animate', function($animate) {\n    return {\n      restrict: 'AC',\n      link: function(scope, element, attr) {\n        var oldVal;\n\n        attr.$observe('class', function(value) {\n          ngClassWatchAction(scope.$eval(attr[name]));\n        });\n\n\n        if (name !== 'ngClass') {\n          scope.$watch('$index', function($index, old$index) {\n            /* eslint-disable no-bitwise */\n            var mod = $index & 1;\n            if (mod !== (old$index & 1)) {\n              var classes = arrayClasses(oldVal);\n              if (mod === selector) {\n                addClasses(classes);\n              } else {\n                removeClasses(classes);\n              }\n            }\n            /* eslint-enable */\n          });\n        }\n\n        scope.$watch(attr[name], ngClassWatchAction, true);\n\n        function addClasses(classes) {\n          var newClasses = digestClassCounts(classes, 1);\n          attr.$addClass(newClasses);\n        }\n\n        function removeClasses(classes) {\n          var newClasses = digestClassCounts(classes, -1);\n          attr.$removeClass(newClasses);\n        }\n\n        function digestClassCounts(classes, count) {\n          // Use createMap() to prevent class assumptions involving property\n          // names in Object.prototype\n          var classCounts = element.data('$classCounts') || createMap();\n          var classesToUpdate = [];\n          forEach(classes, function(className) {\n            if (count > 0 || classCounts[className]) {\n              classCounts[className] = (classCounts[className] || 0) + count;\n              if (classCounts[className] === +(count > 0)) {\n                classesToUpdate.push(className);\n              }\n            }\n          });\n          element.data('$classCounts', classCounts);\n          return classesToUpdate.join(' ');\n        }\n\n        function updateClasses(oldClasses, newClasses) {\n          var toAdd = arrayDifference(newClasses, oldClasses);\n          var toRemove = arrayDifference(oldClasses, newClasses);\n          toAdd = digestClassCounts(toAdd, 1);\n          toRemove = digestClassCounts(toRemove, -1);\n          if (toAdd && toAdd.length) {\n            $animate.addClass(element, toAdd);\n          }\n          if (toRemove && toRemove.length) {\n            $animate.removeClass(element, toRemove);\n          }\n        }\n\n        function ngClassWatchAction(newVal) {\n          // eslint-disable-next-line no-bitwise\n          if (selector === true || (scope.$index & 1) === selector) {\n            var newClasses = arrayClasses(newVal || []);\n            if (!oldVal) {\n              addClasses(newClasses);\n            } else if (!equals(newVal,oldVal)) {\n              var oldClasses = arrayClasses(oldVal);\n              updateClasses(oldClasses, newClasses);\n            }\n          }\n          if (isArray(newVal)) {\n            oldVal = newVal.map(function(v) { return shallowCopy(v); });\n          } else {\n            oldVal = shallowCopy(newVal);\n          }\n        }\n      }\n    };\n\n    function arrayDifference(tokens1, tokens2) {\n      var values = [];\n\n      outer:\n      for (var i = 0; i < tokens1.length; i++) {\n        var token = tokens1[i];\n        for (var j = 0; j < tokens2.length; j++) {\n          if (token === tokens2[j]) continue outer;\n        }\n        values.push(token);\n      }\n      return values;\n    }\n\n    function arrayClasses(classVal) {\n      var classes = [];\n      if (isArray(classVal)) {\n        forEach(classVal, function(v) {\n          classes = classes.concat(arrayClasses(v));\n        });\n        return classes;\n      } else if (isString(classVal)) {\n        return classVal.split(' ');\n      } else if (isObject(classVal)) {\n        forEach(classVal, function(v, k) {\n          if (v) {\n            classes = classes.concat(k.split(' '));\n          }\n        });\n        return classes;\n      }\n      return classVal;\n    }\n  }];\n}\n\n/**\n * @ngdoc directive\n * @name ngClass\n * @restrict AC\n *\n * @description\n * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding\n * an expression that represents all classes to be added.\n *\n * The directive operates in three different ways, depending on which of three types the expression\n * evaluates to:\n *\n * 1. If the expression evaluates to a string, the string should be one or more space-delimited class\n * names.\n *\n * 2. If the expression evaluates to an object, then for each key-value pair of the\n * object with a truthy value the corresponding key is used as a class name.\n *\n * 3. If the expression evaluates to an array, each element of the array should either be a string as in\n * type 1 or an object as in type 2. This means that you can mix strings and objects together in an array\n * to give you more control over what CSS classes appear. See the code below for an example of this.\n *\n *\n * The directive won't add duplicate classes if a particular class was already set.\n *\n * When the expression changes, the previously added classes are removed and only then are the\n * new classes added.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `class`\n * attribute, when using the `ngClass` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * @element ANY\n * @param {expression} ngClass {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class\n *   names, an array, or a map of class names to boolean values. In the case of a map, the\n *   names of the properties whose values are truthy will be added as css classes to the\n *   element.\n *\n * @example Example that demonstrates basic bindings via ngClass directive.\n   <example name=\"ng-class\">\n     <file name=\"index.html\">\n       <p ng-class=\"{strike: deleted, bold: important, 'has-error': error}\">Map Syntax Example</p>\n       <label>\n          <input type=\"checkbox\" ng-model=\"deleted\">\n          deleted (apply \"strike\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"important\">\n          important (apply \"bold\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"error\">\n          error (apply \"has-error\" class)\n       </label>\n       <hr>\n       <p ng-class=\"style\">Using String Syntax</p>\n       <input type=\"text\" ng-model=\"style\"\n              placeholder=\"Type: bold strike red\" aria-label=\"Type: bold strike red\">\n       <hr>\n       <p ng-class=\"[style1, style2, style3]\">Using Array Syntax</p>\n       <input ng-model=\"style1\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style2\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 2\"><br>\n       <input ng-model=\"style3\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 3\"><br>\n       <hr>\n       <p ng-class=\"[style4, {orange: warning}]\">Using Array and Map Syntax</p>\n       <input ng-model=\"style4\" placeholder=\"Type: bold, strike\" aria-label=\"Type: bold, strike\"><br>\n       <label><input type=\"checkbox\" ng-model=\"warning\"> warning (apply \"orange\" class)</label>\n     </file>\n     <file name=\"style.css\">\n       .strike {\n           text-decoration: line-through;\n       }\n       .bold {\n           font-weight: bold;\n       }\n       .red {\n           color: red;\n       }\n       .has-error {\n           color: red;\n           background-color: yellow;\n       }\n       .orange {\n           color: orange;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var ps = element.all(by.css('p'));\n\n       it('should let you toggle the class', function() {\n\n         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);\n         expect(ps.first().getAttribute('class')).not.toMatch(/has-error/);\n\n         element(by.model('important')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/bold/);\n\n         element(by.model('error')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/has-error/);\n       });\n\n       it('should let you toggle string example', function() {\n         expect(ps.get(1).getAttribute('class')).toBe('');\n         element(by.model('style')).clear();\n         element(by.model('style')).sendKeys('red');\n         expect(ps.get(1).getAttribute('class')).toBe('red');\n       });\n\n       it('array example should have 3 classes', function() {\n         expect(ps.get(2).getAttribute('class')).toBe('');\n         element(by.model('style1')).sendKeys('bold');\n         element(by.model('style2')).sendKeys('strike');\n         element(by.model('style3')).sendKeys('red');\n         expect(ps.get(2).getAttribute('class')).toBe('bold strike red');\n       });\n\n       it('array with map example should have 2 classes', function() {\n         expect(ps.last().getAttribute('class')).toBe('');\n         element(by.model('style4')).sendKeys('bold');\n         element(by.model('warning')).click();\n         expect(ps.last().getAttribute('class')).toBe('bold orange');\n       });\n     </file>\n   </example>\n\n   ## Animations\n\n   The example below demonstrates how to perform animations using ngClass.\n\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class\">\n     <file name=\"index.html\">\n      <input id=\"setbtn\" type=\"button\" value=\"set\" ng-click=\"myVar='my-class'\">\n      <input id=\"clearbtn\" type=\"button\" value=\"clear\" ng-click=\"myVar=''\">\n      <br>\n      <span class=\"base-class\" ng-class=\"myVar\">Sample Text</span>\n     </file>\n     <file name=\"style.css\">\n       .base-class {\n         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n       }\n\n       .base-class.my-class {\n         color: red;\n         font-size:3em;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class', function() {\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n\n         element(by.id('setbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).\n           toMatch(/my-class/);\n\n         element(by.id('clearbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n       });\n     </file>\n   </example>\n\n\n   ## ngClass and pre-existing CSS3 Transitions/Animations\n   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.\n   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder\n   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure\n   to view the step by step details of {@link $animate#addClass $animate.addClass} and\n   {@link $animate#removeClass $animate.removeClass}.\n */\nvar ngClassDirective = classDirective('', true);\n\n/**\n * @ngdoc directive\n * @name ngClassOdd\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-odd\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}}\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassOddDirective = classDirective('Odd', 0);\n\n/**\n * @ngdoc directive\n * @name ngClassEven\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @element ANY\n * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The\n *   result of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-even\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}} &nbsp; &nbsp; &nbsp;\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassEvenDirective = classDirective('Even', 1);\n\n/**\n * @ngdoc directive\n * @name ngCloak\n * @restrict AC\n *\n * @description\n * The `ngCloak` directive is used to prevent the Angular html template from being briefly\n * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this\n * directive to avoid the undesirable flicker effect caused by the html template display.\n *\n * The directive can be applied to the `<body>` element, but the preferred usage is to apply\n * multiple `ngCloak` directives to small portions of the page to permit progressive rendering\n * of the browser view.\n *\n * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and\n * `angular.min.js`.\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```css\n * [ng\\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {\n *   display: none !important;\n * }\n * ```\n *\n * When this css rule is loaded by the browser, all html elements (including their children) that\n * are tagged with the `ngCloak` directive are hidden. When Angular encounters this directive\n * during the compilation of the template it deletes the `ngCloak` element attribute, making\n * the compiled element visible.\n *\n * For the best result, the `angular.js` script must be loaded in the head section of the html\n * document; alternatively, the css rule above must be included in the external stylesheet of the\n * application.\n *\n * @element ANY\n *\n * @example\n   <example name=\"ng-cloak\">\n     <file name=\"index.html\">\n        <div id=\"template1\" ng-cloak>{{ 'hello' }}</div>\n        <div id=\"template2\" class=\"ng-cloak\">{{ 'world' }}</div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should remove the template directive and css class', function() {\n         expect($('#template1').getAttribute('ng-cloak')).\n           toBeNull();\n         expect($('#template2').getAttribute('ng-cloak')).\n           toBeNull();\n       });\n     </file>\n   </example>\n *\n */\nvar ngCloakDirective = ngDirective({\n  compile: function(element, attr) {\n    attr.$set('ngCloak', undefined);\n    element.removeClass('ng-cloak');\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngController\n *\n * @description\n * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular\n * supports the principles behind the Model-View-Controller design pattern.\n *\n * MVC components in angular:\n *\n * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties\n *   are accessed through bindings.\n * * View — The template (HTML with data bindings) that is rendered into the View.\n * * Controller — The `ngController` directive specifies a Controller class; the class contains business\n *   logic behind the application to decorate the scope with functions and values\n *\n * Note that you can also attach controllers to the DOM by declaring it in a route definition\n * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller\n * again using `ng-controller` in the template itself.  This will cause the controller to be attached\n * and executed twice.\n *\n * @element ANY\n * @scope\n * @priority 500\n * @param {expression} ngController Name of a constructor function registered with the current\n * {@link ng.$controllerProvider $controllerProvider} or an {@link guide/expression expression}\n * that on the current scope evaluates to a constructor function.\n *\n * The controller instance can be published into a scope property by specifying\n * `ng-controller=\"as propertyName\"`.\n *\n * If the current `$controllerProvider` is configured to use globals (via\n * {@link ng.$controllerProvider#allowGlobals `$controllerProvider.allowGlobals()` }), this may\n * also be the name of a globally accessible constructor function (not recommended).\n *\n * @example\n * Here is a simple form for editing user contact information. Adding, removing, clearing, and\n * greeting are methods declared on the controller (see source tab). These methods can\n * easily be called from the angular markup. Any changes to the data are automatically reflected\n * in the View without the need for a manual update.\n *\n * Two different declaration styles are included below:\n *\n * * one binds methods and properties directly onto the controller using `this`:\n * `ng-controller=\"SettingsController1 as settings\"`\n * * one injects `$scope` into the controller:\n * `ng-controller=\"SettingsController2\"`\n *\n * The second option is more common in the Angular community, and is generally used in boilerplates\n * and in this guide. However, there are advantages to binding properties directly to the controller\n * and avoiding scope.\n *\n * * Using `controller as` makes it obvious which controller you are accessing in the template when\n * multiple controllers apply to an element.\n * * If you are writing your controllers as classes you have easier access to the properties and\n * methods, which will appear on the scope, from inside the controller code.\n * * Since there is always a `.` in the bindings, you don't have to worry about prototypal\n * inheritance masking primitives.\n *\n * This example demonstrates the `controller as` syntax.\n *\n * <example name=\"ngControllerAs\" module=\"controllerAsExample\">\n *   <file name=\"index.html\">\n *    <div id=\"ctrl-as-exmpl\" ng-controller=\"SettingsController1 as settings\">\n *      <label>Name: <input type=\"text\" ng-model=\"settings.name\"/></label>\n *      <button ng-click=\"settings.greet()\">greet</button><br/>\n *      Contact:\n *      <ul>\n *        <li ng-repeat=\"contact in settings.contacts\">\n *          <select ng-model=\"contact.type\" aria-label=\"Contact method\" id=\"select_{{$index}}\">\n *             <option>phone</option>\n *             <option>email</option>\n *          </select>\n *          <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *          <button ng-click=\"settings.clearContact(contact)\">clear</button>\n *          <button ng-click=\"settings.removeContact(contact)\" aria-label=\"Remove\">X</button>\n *        </li>\n *        <li><button ng-click=\"settings.addContact()\">add</button></li>\n *     </ul>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('controllerAsExample', [])\n *      .controller('SettingsController1', SettingsController1);\n *\n *    function SettingsController1() {\n *      this.name = 'John Smith';\n *      this.contacts = [\n *        {type: 'phone', value: '408 555 1212'},\n *        {type: 'email', value: 'john.smith@example.org'}\n *      ];\n *    }\n *\n *    SettingsController1.prototype.greet = function() {\n *      alert(this.name);\n *    };\n *\n *    SettingsController1.prototype.addContact = function() {\n *      this.contacts.push({type: 'email', value: 'yourname@example.org'});\n *    };\n *\n *    SettingsController1.prototype.removeContact = function(contactToRemove) {\n *     var index = this.contacts.indexOf(contactToRemove);\n *      this.contacts.splice(index, 1);\n *    };\n *\n *    SettingsController1.prototype.clearContact = function(contact) {\n *      contact.type = 'phone';\n *      contact.value = '';\n *    };\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should check controller as', function() {\n *       var container = element(by.id('ctrl-as-exmpl'));\n *         expect(container.element(by.model('settings.name'))\n *           .getAttribute('value')).toBe('John Smith');\n *\n *       var firstRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(0));\n *       var secondRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(1));\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('408 555 1212');\n *\n *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('john.smith@example.org');\n *\n *       firstRepeat.element(by.buttonText('clear')).click();\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('');\n *\n *       container.element(by.buttonText('add')).click();\n *\n *       expect(container.element(by.repeater('contact in settings.contacts').row(2))\n *           .element(by.model('contact.value'))\n *           .getAttribute('value'))\n *           .toBe('yourname@example.org');\n *     });\n *   </file>\n * </example>\n *\n * This example demonstrates the \"attach to `$scope`\" style of controller.\n *\n * <example name=\"ngController\" module=\"controllerExample\">\n *  <file name=\"index.html\">\n *   <div id=\"ctrl-exmpl\" ng-controller=\"SettingsController2\">\n *     <label>Name: <input type=\"text\" ng-model=\"name\"/></label>\n *     <button ng-click=\"greet()\">greet</button><br/>\n *     Contact:\n *     <ul>\n *       <li ng-repeat=\"contact in contacts\">\n *         <select ng-model=\"contact.type\" id=\"select_{{$index}}\">\n *            <option>phone</option>\n *            <option>email</option>\n *         </select>\n *         <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *         <button ng-click=\"clearContact(contact)\">clear</button>\n *         <button ng-click=\"removeContact(contact)\">X</button>\n *       </li>\n *       <li>[ <button ng-click=\"addContact()\">add</button> ]</li>\n *    </ul>\n *   </div>\n *  </file>\n *  <file name=\"app.js\">\n *   angular.module('controllerExample', [])\n *     .controller('SettingsController2', ['$scope', SettingsController2]);\n *\n *   function SettingsController2($scope) {\n *     $scope.name = 'John Smith';\n *     $scope.contacts = [\n *       {type:'phone', value:'408 555 1212'},\n *       {type:'email', value:'john.smith@example.org'}\n *     ];\n *\n *     $scope.greet = function() {\n *       alert($scope.name);\n *     };\n *\n *     $scope.addContact = function() {\n *       $scope.contacts.push({type:'email', value:'yourname@example.org'});\n *     };\n *\n *     $scope.removeContact = function(contactToRemove) {\n *       var index = $scope.contacts.indexOf(contactToRemove);\n *       $scope.contacts.splice(index, 1);\n *     };\n *\n *     $scope.clearContact = function(contact) {\n *       contact.type = 'phone';\n *       contact.value = '';\n *     };\n *   }\n *  </file>\n *  <file name=\"protractor.js\" type=\"protractor\">\n *    it('should check controller', function() {\n *      var container = element(by.id('ctrl-exmpl'));\n *\n *      expect(container.element(by.model('name'))\n *          .getAttribute('value')).toBe('John Smith');\n *\n *      var firstRepeat =\n *          container.element(by.repeater('contact in contacts').row(0));\n *      var secondRepeat =\n *          container.element(by.repeater('contact in contacts').row(1));\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('408 555 1212');\n *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('john.smith@example.org');\n *\n *      firstRepeat.element(by.buttonText('clear')).click();\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('');\n *\n *      container.element(by.buttonText('add')).click();\n *\n *      expect(container.element(by.repeater('contact in contacts').row(2))\n *          .element(by.model('contact.value'))\n *          .getAttribute('value'))\n *          .toBe('yourname@example.org');\n *    });\n *  </file>\n *</example>\n\n */\nvar ngControllerDirective = [function() {\n  return {\n    restrict: 'A',\n    scope: true,\n    controller: '@',\n    priority: 500\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngCsp\n *\n * @restrict A\n * @element ANY\n * @description\n *\n * Angular has some features that can conflict with certain restrictions that are applied when using\n * [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) rules.\n *\n * If you intend to implement CSP with these rules then you must tell Angular not to use these\n * features.\n *\n * This is necessary when developing things like Google Chrome Extensions or Universal Windows Apps.\n *\n *\n * The following default rules in CSP affect Angular:\n *\n * * The use of `eval()`, `Function(string)` and similar functions to dynamically create and execute\n * code from strings is forbidden. Angular makes use of this in the {@link $parse} service to\n * provide a 30% increase in the speed of evaluating Angular expressions. (This CSP rule can be\n * disabled with the CSP keyword `unsafe-eval`, but it is generally not recommended as it would\n * weaken the protections offered by CSP.)\n *\n * * The use of inline resources, such as inline `<script>` and `<style>` elements, are forbidden.\n * This prevents apps from injecting custom styles directly into the document. Angular makes use of\n * this to include some CSS rules (e.g. {@link ngCloak} and {@link ngHide}). To make these\n * directives work when a CSP rule is blocking inline styles, you must link to the `angular-csp.css`\n * in your HTML manually. (This CSP rule can be disabled with the CSP keyword `unsafe-inline`, but\n * it is generally not recommended as it would weaken the protections offered by CSP.)\n *\n * If you do not provide `ngCsp` then Angular tries to autodetect if CSP is blocking dynamic code\n * creation from strings (e.g., `unsafe-eval` not specified in CSP header) and automatically\n * deactivates this feature in the {@link $parse} service. This autodetection, however, triggers a\n * CSP error to be logged in the console:\n *\n * ```\n * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of\n * script in the following Content Security Policy directive: \"default-src 'self'\". Note that\n * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.\n * ```\n *\n * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`\n * directive on an element of the HTML document that appears before the `<script>` tag that loads\n * the `angular.js` file.\n *\n * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*\n *\n * You can specify which of the CSP related Angular features should be deactivated by providing\n * a value for the `ng-csp` attribute. The options are as follows:\n *\n * * no-inline-style: this stops Angular from injecting CSS styles into the DOM\n *\n * * no-unsafe-eval: this stops Angular from optimizing $parse with unsafe eval of strings\n *\n * You can use these values in the following combinations:\n *\n *\n * * No declaration means that Angular will assume that you can do inline styles, but it will do\n * a runtime check for unsafe-eval. E.g. `<body>`. This is backwardly compatible with previous\n * versions of Angular.\n *\n * * A simple `ng-csp` (or `data-ng-csp`) attribute will tell Angular to deactivate both inline\n * styles and unsafe eval. E.g. `<body ng-csp>`. This is backwardly compatible with previous\n * versions of Angular.\n *\n * * Specifying only `no-unsafe-eval` tells Angular that we must not use eval, but that we can\n * inject inline styles. E.g. `<body ng-csp=\"no-unsafe-eval\">`.\n *\n * * Specifying only `no-inline-style` tells Angular that we must not inject styles, but that we can\n * run eval - no automatic check for unsafe eval will occur. E.g. `<body ng-csp=\"no-inline-style\">`\n *\n * * Specifying both `no-unsafe-eval` and `no-inline-style` tells Angular that we must not inject\n * styles nor use eval, which is the same as an empty: ng-csp.\n * E.g.`<body ng-csp=\"no-inline-style;no-unsafe-eval\">`\n *\n * @example\n * This example shows how to apply the `ngCsp` directive to the `html` tag.\n   ```html\n     <!doctype html>\n     <html ng-app ng-csp>\n     ...\n     ...\n     </html>\n   ```\n  * @example\n      <!-- Note: the `.csp` suffix in the example name triggers CSP mode in our http server! -->\n      <example name=\"example.csp\" module=\"cspExample\" ng-csp=\"true\">\n        <file name=\"index.html\">\n          <div ng-controller=\"MainController as ctrl\">\n            <div>\n              <button ng-click=\"ctrl.inc()\" id=\"inc\">Increment</button>\n              <span id=\"counter\">\n                {{ctrl.counter}}\n              </span>\n            </div>\n\n            <div>\n              <button ng-click=\"ctrl.evil()\" id=\"evil\">Evil</button>\n              <span id=\"evilError\">\n                {{ctrl.evilError}}\n              </span>\n            </div>\n          </div>\n        </file>\n        <file name=\"script.js\">\n           angular.module('cspExample', [])\n             .controller('MainController', function MainController() {\n                this.counter = 0;\n                this.inc = function() {\n                  this.counter++;\n                };\n                this.evil = function() {\n                  try {\n                    eval('1+2'); // eslint-disable-line no-eval\n                  } catch (e) {\n                    this.evilError = e.message;\n                  }\n                };\n              });\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var util, webdriver;\n\n          var incBtn = element(by.id('inc'));\n          var counter = element(by.id('counter'));\n          var evilBtn = element(by.id('evil'));\n          var evilError = element(by.id('evilError'));\n\n          function getAndClearSevereErrors() {\n            return browser.manage().logs().get('browser').then(function(browserLog) {\n              return browserLog.filter(function(logEntry) {\n                return logEntry.level.value > webdriver.logging.Level.WARNING.value;\n              });\n            });\n          }\n\n          function clearErrors() {\n            getAndClearSevereErrors();\n          }\n\n          function expectNoErrors() {\n            getAndClearSevereErrors().then(function(filteredLog) {\n              expect(filteredLog.length).toEqual(0);\n              if (filteredLog.length) {\n                console.log('browser console errors: ' + util.inspect(filteredLog));\n              }\n            });\n          }\n\n          function expectError(regex) {\n            getAndClearSevereErrors().then(function(filteredLog) {\n              var found = false;\n              filteredLog.forEach(function(log) {\n                if (log.message.match(regex)) {\n                  found = true;\n                }\n              });\n              if (!found) {\n                throw new Error('expected an error that matches ' + regex);\n              }\n            });\n          }\n\n          beforeEach(function() {\n            util = require('util');\n            webdriver = require('selenium-webdriver');\n          });\n\n          // For now, we only test on Chrome,\n          // as Safari does not load the page with Protractor's injected scripts,\n          // and Firefox webdriver always disables content security policy (#6358)\n          if (browser.params.browser !== 'chrome') {\n            return;\n          }\n\n          it('should not report errors when the page is loaded', function() {\n            // clear errors so we are not dependent on previous tests\n            clearErrors();\n            // Need to reload the page as the page is already loaded when\n            // we come here\n            browser.driver.getCurrentUrl().then(function(url) {\n              browser.get(url);\n            });\n            expectNoErrors();\n          });\n\n          it('should evaluate expressions', function() {\n            expect(counter.getText()).toEqual('0');\n            incBtn.click();\n            expect(counter.getText()).toEqual('1');\n            expectNoErrors();\n          });\n\n          it('should throw and report an error when using \"eval\"', function() {\n            evilBtn.click();\n            expect(evilError.getText()).toMatch(/Content Security Policy/);\n            expectError(/Content Security Policy/);\n          });\n        </file>\n      </example>\n  */\n\n// `ngCsp` is not implemented as a proper directive any more, because we need it be processed while\n// we bootstrap the app (before `$parse` is instantiated). For this reason, we just have the `csp()`\n// fn that looks for the `ng-csp` attribute anywhere in the current doc.\n\n/**\n * @ngdoc directive\n * @name ngClick\n *\n * @description\n * The ngClick directive allows you to specify custom behavior when\n * an element is clicked.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon\n * click. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-click\">\n     <file name=\"index.html\">\n      <button ng-click=\"count = count + 1\" ng-init=\"count=0\">\n        Increment\n      </button>\n      <span>\n        count: {{count}}\n      </span>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-click', function() {\n         expect(element(by.binding('count')).getText()).toMatch('0');\n         element(by.css('button')).click();\n         expect(element(by.binding('count')).getText()).toMatch('1');\n       });\n     </file>\n   </example>\n */\n/*\n * A collection of directives that allows creation of custom event handlers that are defined as\n * angular expressions and are compiled and executed within the current scope.\n */\nvar ngEventDirectives = {};\n\n// For events that might fire synchronously during DOM manipulation\n// we need to execute their event handlers asynchronously using $evalAsync,\n// so that they are not executed in an inconsistent state.\nvar forceAsyncEvents = {\n  'blur': true,\n  'focus': true\n};\nforEach(\n  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),\n  function(eventName) {\n    var directiveName = directiveNormalize('ng-' + eventName);\n    ngEventDirectives[directiveName] = ['$parse', '$rootScope', function($parse, $rootScope) {\n      return {\n        restrict: 'A',\n        compile: function($element, attr) {\n          // We expose the powerful $event object on the scope that provides access to the Window,\n          // etc. that isn't protected by the fast paths in $parse.  We explicitly request better\n          // checks at the cost of speed since event handler expressions are not executed as\n          // frequently as regular change detection.\n          var fn = $parse(attr[directiveName], /* interceptorFn */ null, /* expensiveChecks */ true);\n          return function ngEventHandler(scope, element) {\n            element.on(eventName, function(event) {\n              var callback = function() {\n                fn(scope, {$event:event});\n              };\n              if (forceAsyncEvents[eventName] && $rootScope.$$phase) {\n                scope.$evalAsync(callback);\n              } else {\n                scope.$apply(callback);\n              }\n            });\n          };\n        }\n      };\n    }];\n  }\n);\n\n/**\n * @ngdoc directive\n * @name ngDblclick\n *\n * @description\n * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon\n * a dblclick. (The Event object is available as `$event`)\n *\n * @example\n   <example name=\"ng-dblclick\">\n     <file name=\"index.html\">\n      <button ng-dblclick=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on double click)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousedown\n *\n * @description\n * The ngMousedown directive allows you to specify custom behavior on mousedown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon\n * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousedown\">\n     <file name=\"index.html\">\n      <button ng-mousedown=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse down)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseup\n *\n * @description\n * Specify custom behavior on mouseup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon\n * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseup\">\n     <file name=\"index.html\">\n      <button ng-mouseup=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse up)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngMouseover\n *\n * @description\n * Specify custom behavior on mouseover event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon\n * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseover\">\n     <file name=\"index.html\">\n      <button ng-mouseover=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse is over)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseenter\n *\n * @description\n * Specify custom behavior on mouseenter event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon\n * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseenter\">\n     <file name=\"index.html\">\n      <button ng-mouseenter=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse enters)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseleave\n *\n * @description\n * Specify custom behavior on mouseleave event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon\n * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseleave\">\n     <file name=\"index.html\">\n      <button ng-mouseleave=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse leaves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousemove\n *\n * @description\n * Specify custom behavior on mousemove event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon\n * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousemove\">\n     <file name=\"index.html\">\n      <button ng-mousemove=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse moves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeydown\n *\n * @description\n * Specify custom behavior on keydown event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon\n * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keydown\">\n     <file name=\"index.html\">\n      <input ng-keydown=\"count = count + 1\" ng-init=\"count=0\">\n      key down count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeyup\n *\n * @description\n * Specify custom behavior on keyup event.\n *\n * @element ANY\n * @priority 0\n * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon\n * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keyup\">\n     <file name=\"index.html\">\n       <p>Typing in the input box below updates the key count</p>\n       <input ng-keyup=\"count = count + 1\" ng-init=\"count=0\"> key up count: {{count}}\n\n       <p>Typing in the input box below updates the keycode</p>\n       <input ng-keyup=\"event=$event\">\n       <p>event keyCode: {{ event.keyCode }}</p>\n       <p>event altKey: {{ event.altKey }}</p>\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeypress\n *\n * @description\n * Specify custom behavior on keypress event.\n *\n * @element ANY\n * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon\n * keypress. ({@link guide/expression#-event- Event object is available as `$event`}\n * and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keypress\">\n     <file name=\"index.html\">\n      <input ng-keypress=\"count = count + 1\" ng-init=\"count=0\">\n      key press count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSubmit\n *\n * @description\n * Enables binding angular expressions to onsubmit events.\n *\n * Additionally it prevents the default action (which for form means sending the request to the\n * server and reloading the current page), but only if the form does not contain `action`,\n * `data-action`, or `x-action` attributes.\n *\n * <div class=\"alert alert-warning\">\n * **Warning:** Be careful not to cause \"double-submission\" by using both the `ngClick` and\n * `ngSubmit` handlers together. See the\n * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}\n * for a detailed discussion of when `ngSubmit` may be triggered.\n * </div>\n *\n * @element form\n * @priority 0\n * @param {expression} ngSubmit {@link guide/expression Expression} to eval.\n * ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example module=\"submitExample\" name=\"ng-submit\">\n     <file name=\"index.html\">\n      <script>\n        angular.module('submitExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.list = [];\n            $scope.text = 'hello';\n            $scope.submit = function() {\n              if ($scope.text) {\n                $scope.list.push(this.text);\n                $scope.text = '';\n              }\n            };\n          }]);\n      </script>\n      <form ng-submit=\"submit()\" ng-controller=\"ExampleController\">\n        Enter text and hit enter:\n        <input type=\"text\" ng-model=\"text\" name=\"text\" />\n        <input type=\"submit\" id=\"submit\" value=\"Submit\" />\n        <pre>list={{list}}</pre>\n      </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-submit', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n         expect(element(by.model('text')).getAttribute('value')).toBe('');\n       });\n       it('should ignore empty strings', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n        });\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngFocus\n *\n * @description\n * Specify custom behavior on focus event.\n *\n * Note: As the `focus` event is executed synchronously when calling `input.focus()`\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon\n * focus. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngBlur\n *\n * @description\n * Specify custom behavior on blur event.\n *\n * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when\n * an element has lost focus.\n *\n * Note: As the `blur` event is executed synchronously also during DOM manipulations\n * (e.g. removing a focussed input),\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon\n * blur. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngCopy\n *\n * @description\n * Specify custom behavior on copy event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon\n * copy. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-copy\">\n     <file name=\"index.html\">\n      <input ng-copy=\"copied=true\" ng-init=\"copied=false; value='copy me'\" ng-model=\"value\">\n      copied: {{copied}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngCut\n *\n * @description\n * Specify custom behavior on cut event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon\n * cut. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-cut\">\n     <file name=\"index.html\">\n      <input ng-cut=\"cut=true\" ng-init=\"cut=false; value='cut me'\" ng-model=\"value\">\n      cut: {{cut}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngPaste\n *\n * @description\n * Specify custom behavior on paste event.\n *\n * @element window, input, select, textarea, a\n * @priority 0\n * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon\n * paste. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-paste\">\n     <file name=\"index.html\">\n      <input ng-paste=\"paste=true\" ng-init=\"paste=false\" placeholder='paste here'>\n      pasted: {{paste}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngIf\n * @restrict A\n * @multiElement\n *\n * @description\n * The `ngIf` directive removes or recreates a portion of the DOM tree based on an\n * {expression}. If the expression assigned to `ngIf` evaluates to a false\n * value then the element is removed from the DOM, otherwise a clone of the\n * element is reinserted into the DOM.\n *\n * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the\n * element in the DOM rather than changing its visibility via the `display` css property.  A common\n * case when this difference is significant is when using css selectors that rely on an element's\n * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.\n *\n * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope\n * is created when the element is restored.  The scope created within `ngIf` inherits from\n * its parent scope using\n * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).\n * An important implication of this is if `ngModel` is used within `ngIf` to bind to\n * a javascript primitive defined in the parent scope. In this case any modifications made to the\n * variable within the child scope will override (hide) the value in the parent scope.\n *\n * Also, `ngIf` recreates elements using their compiled state. An example of this behavior\n * is if an element's class attribute is directly modified after it's compiled, using something like\n * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element\n * the added class will be lost because the original compiled state is used to regenerate the element.\n *\n * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`\n * and `leave` effects.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container |\n * | {@link ng.$animate#leave leave}  | just before the `ngIf` contents are removed from the DOM |\n *\n * @element ANY\n * @scope\n * @priority 600\n * @param {expression} ngIf If the {@link guide/expression expression} is falsy then\n *     the element is removed from the DOM tree. If it is truthy a copy of the compiled\n *     element is added to the DOM tree.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-if\">\n    <file name=\"index.html\">\n      <label>Click me: <input type=\"checkbox\" ng-model=\"checked\" ng-init=\"checked=true\" /></label><br/>\n      Show when checked:\n      <span ng-if=\"checked\" class=\"animate-if\">\n        This is removed when the checkbox is unchecked.\n      </span>\n    </file>\n    <file name=\"animations.css\">\n      .animate-if {\n        background:white;\n        border:1px solid black;\n        padding:10px;\n      }\n\n      .animate-if.ng-enter, .animate-if.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n      }\n\n      .animate-if.ng-enter,\n      .animate-if.ng-leave.ng-leave-active {\n        opacity:0;\n      }\n\n      .animate-if.ng-leave,\n      .animate-if.ng-enter.ng-enter-active {\n        opacity:1;\n      }\n    </file>\n  </example>\n */\nvar ngIfDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    multiElement: true,\n    transclude: 'element',\n    priority: 600,\n    terminal: true,\n    restrict: 'A',\n    $$tlb: true,\n    link: function($scope, $element, $attr, ctrl, $transclude) {\n        var block, childScope, previousElements;\n        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {\n\n          if (value) {\n            if (!childScope) {\n              $transclude(function(clone, newScope) {\n                childScope = newScope;\n                clone[clone.length++] = $compile.$$createComment('end ngIf', $attr.ngIf);\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block = {\n                  clone: clone\n                };\n                $animate.enter(clone, $element.parent(), $element);\n              });\n            }\n          } else {\n            if (previousElements) {\n              previousElements.remove();\n              previousElements = null;\n            }\n            if (childScope) {\n              childScope.$destroy();\n              childScope = null;\n            }\n            if (block) {\n              previousElements = getBlockNodes(block.clone);\n              $animate.leave(previousElements).done(function(response) {\n                if (response !== false) previousElements = null;\n              });\n              block = null;\n            }\n          }\n        });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngInclude\n * @restrict ECA\n *\n * @description\n * Fetches, compiles and includes an external HTML fragment.\n *\n * By default, the template URL is restricted to the same domain and protocol as the\n * application document. This is done by calling {@link $sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols\n * you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or\n * {@link $sce#trustAsResourceUrl wrap them} as trusted values. Refer to Angular's {@link\n * ng.$sce Strict Contextual Escaping}.\n *\n * In addition, the browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy may further restrict whether the template is successfully loaded.\n * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`\n * access on some browsers.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the expression changes, on the new include |\n * | {@link ng.$animate#leave leave}  | when the expression changes, on the old include |\n *\n * The enter and leave animation occur concurrently.\n *\n * @scope\n * @priority 400\n *\n * @param {string} ngInclude|src angular expression evaluating to URL. If the source is a string constant,\n *                 make sure you wrap it in **single** quotes, e.g. `src=\"'myPartialTemplate.html'\"`.\n * @param {string=} onload Expression to evaluate when a new partial is loaded.\n *                  <div class=\"alert alert-warning\">\n *                  **Note:** When using onload on SVG elements in IE11, the browser will try to call\n *                  a function with the name on the window element, which will usually throw a\n *                  \"function is undefined\" error. To fix this, you can instead use `data-onload` or a\n *                  different form that {@link guide/directive#normalization matches} `onload`.\n *                  </div>\n   *\n * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the content is loaded.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.\n *\n * @example\n  <example module=\"includeExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-include\">\n    <file name=\"index.html\">\n     <div ng-controller=\"ExampleController\">\n       <select ng-model=\"template\" ng-options=\"t.name for t in templates\">\n        <option value=\"\">(blank)</option>\n       </select>\n       url of the template: <code>{{template.url}}</code>\n       <hr/>\n       <div class=\"slide-animate-container\">\n         <div class=\"slide-animate\" ng-include=\"template.url\"></div>\n       </div>\n     </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('includeExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.templates =\n            [{ name: 'template1.html', url: 'template1.html'},\n             { name: 'template2.html', url: 'template2.html'}];\n          $scope.template = $scope.templates[0];\n        }]);\n     </file>\n    <file name=\"template1.html\">\n      Content of template1.html\n    </file>\n    <file name=\"template2.html\">\n      Content of template2.html\n    </file>\n    <file name=\"animations.css\">\n      .slide-animate-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .slide-animate {\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter, .slide-animate.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n        display:block;\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter {\n        top:-50px;\n      }\n      .slide-animate.ng-enter.ng-enter-active {\n        top:0;\n      }\n\n      .slide-animate.ng-leave {\n        top:0;\n      }\n      .slide-animate.ng-leave.ng-leave-active {\n        top:50px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var templateSelect = element(by.model('template'));\n      var includeElem = element(by.css('[ng-include]'));\n\n      it('should load template1.html', function() {\n        expect(includeElem.getText()).toMatch(/Content of template1.html/);\n      });\n\n      it('should load template2.html', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          // See https://github.com/angular/protractor/issues/480\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(2).click();\n        expect(includeElem.getText()).toMatch(/Content of template2.html/);\n      });\n\n      it('should change to blank', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(0).click();\n        expect(includeElem.isPresent()).toBe(false);\n      });\n    </file>\n  </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentRequested\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted every time the ngInclude content is requested.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentLoaded\n * @eventType emit on the current ngInclude scope\n * @description\n * Emitted every time the ngInclude content is reloaded.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentError\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted when a template HTTP request yields an erroneous response (status < 200 || status > 299)\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\nvar ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',\n                  function($templateRequest,   $anchorScroll,   $animate) {\n  return {\n    restrict: 'ECA',\n    priority: 400,\n    terminal: true,\n    transclude: 'element',\n    controller: angular.noop,\n    compile: function(element, attr) {\n      var srcExp = attr.ngInclude || attr.src,\n          onloadExp = attr.onload || '',\n          autoScrollExp = attr.autoscroll;\n\n      return function(scope, $element, $attr, ctrl, $transclude) {\n        var changeCounter = 0,\n            currentScope,\n            previousElement,\n            currentElement;\n\n        var cleanupLastIncludeContent = function() {\n          if (previousElement) {\n            previousElement.remove();\n            previousElement = null;\n          }\n          if (currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if (currentElement) {\n            $animate.leave(currentElement).done(function(response) {\n              if (response !== false) previousElement = null;\n            });\n            previousElement = currentElement;\n            currentElement = null;\n          }\n        };\n\n        scope.$watch(srcExp, function ngIncludeWatchAction(src) {\n          var afterAnimation = function(response) {\n            if (response !== false && isDefined(autoScrollExp) &&\n              (!autoScrollExp || scope.$eval(autoScrollExp))) {\n                $anchorScroll();\n            }\n          };\n          var thisChangeId = ++changeCounter;\n\n          if (src) {\n            //set the 2nd param to true to ignore the template request error so that the inner\n            //contents and scope can be cleaned up.\n            $templateRequest(src, true).then(function(response) {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId !== changeCounter) return;\n              var newScope = scope.$new();\n              ctrl.template = response;\n\n              // Note: This will also link all children of ng-include that were contained in the original\n              // html. If that content contains controllers, ... they could pollute/change the scope.\n              // However, using ng-include on an element with additional content does not make sense...\n              // Note: We can't remove them in the cloneAttchFn of $transclude as that\n              // function is called before linking the content, which would apply child\n              // directives to non existing elements.\n              var clone = $transclude(newScope, function(clone) {\n                cleanupLastIncludeContent();\n                $animate.enter(clone, null, $element).done(afterAnimation);\n              });\n\n              currentScope = newScope;\n              currentElement = clone;\n\n              currentScope.$emit('$includeContentLoaded', src);\n              scope.$eval(onloadExp);\n            }, function() {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId === changeCounter) {\n                cleanupLastIncludeContent();\n                scope.$emit('$includeContentError', src);\n              }\n            });\n            scope.$emit('$includeContentRequested', src);\n          } else {\n            cleanupLastIncludeContent();\n            ctrl.template = null;\n          }\n        });\n      };\n    }\n  };\n}];\n\n// This directive is called during the $transclude call of the first `ngInclude` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngInclude\n// is called.\nvar ngIncludeFillContentDirective = ['$compile',\n  function($compile) {\n    return {\n      restrict: 'ECA',\n      priority: -400,\n      require: 'ngInclude',\n      link: function(scope, $element, $attr, ctrl) {\n        if (toString.call($element[0]).match(/SVG/)) {\n          // WebKit: https://bugs.webkit.org/show_bug.cgi?id=135698 --- SVG elements do not\n          // support innerHTML, so detect this here and try to generate the contents\n          // specially.\n          $element.empty();\n          $compile(jqLiteBuildFragment(ctrl.template, window.document).childNodes)(scope,\n              function namespaceAdaptedClone(clone) {\n            $element.append(clone);\n          }, {futureParentElement: $element});\n          return;\n        }\n\n        $element.html(ctrl.template);\n        $compile($element.contents())(scope);\n      }\n    };\n  }];\n\n/**\n * @ngdoc directive\n * @name ngInit\n * @restrict AC\n *\n * @description\n * The `ngInit` directive allows you to evaluate an expression in the\n * current scope.\n *\n * <div class=\"alert alert-danger\">\n * This directive can be abused to add unnecessary amounts of logic into your templates.\n * There are only a few appropriate uses of `ngInit`, such as for aliasing special properties of\n * {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below; and for injecting data via\n * server side scripting. Besides these few cases, you should use {@link guide/controller controllers}\n * rather than `ngInit` to initialize values on a scope.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note**: If you have assignment in `ngInit` along with a {@link ng.$filter `filter`}, make\n * sure you have parentheses to ensure correct operator precedence:\n * <pre class=\"prettyprint\">\n * `<div ng-init=\"test1 = ($index | toString)\"></div>`\n * </pre>\n * </div>\n *\n * @priority 450\n *\n * @element ANY\n * @param {expression} ngInit {@link guide/expression Expression} to eval.\n *\n * @example\n   <example module=\"initExample\" name=\"ng-init\">\n     <file name=\"index.html\">\n   <script>\n     angular.module('initExample', [])\n       .controller('ExampleController', ['$scope', function($scope) {\n         $scope.list = [['a', 'b'], ['c', 'd']];\n       }]);\n   </script>\n   <div ng-controller=\"ExampleController\">\n     <div ng-repeat=\"innerList in list\" ng-init=\"outerIndex = $index\">\n       <div ng-repeat=\"value in innerList\" ng-init=\"innerIndex = $index\">\n          <span class=\"example-init\">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>\n       </div>\n     </div>\n   </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should alias index positions', function() {\n         var elements = element.all(by.css('.example-init'));\n         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');\n         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');\n         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');\n         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');\n       });\n     </file>\n   </example>\n */\nvar ngInitDirective = ngDirective({\n  priority: 450,\n  compile: function() {\n    return {\n      pre: function(scope, element, attrs) {\n        scope.$eval(attrs.ngInit);\n      }\n    };\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngList\n *\n * @description\n * Text input that converts between a delimited string and an array of strings. The default\n * delimiter is a comma followed by a space - equivalent to `ng-list=\", \"`. You can specify a custom\n * delimiter as the value of the `ngList` attribute - for example, `ng-list=\" | \"`.\n *\n * The behaviour of the directive is affected by the use of the `ngTrim` attribute.\n * * If `ngTrim` is set to `\"false\"` then whitespace around both the separator and each\n *   list item is respected. This implies that the user of the directive is responsible for\n *   dealing with whitespace but also allows you to use whitespace as a delimiter, such as a\n *   tab or newline character.\n * * Otherwise whitespace around the delimiter is ignored when splitting (although it is respected\n *   when joining the list items back together) and whitespace around each list item is stripped\n *   before it is added to the model.\n *\n * ### Example with Validation\n *\n * <example name=\"ngList-directive\" module=\"listExample\">\n *   <file name=\"app.js\">\n *      angular.module('listExample', [])\n *        .controller('ExampleController', ['$scope', function($scope) {\n *          $scope.names = ['morpheus', 'neo', 'trinity'];\n *        }]);\n *   </file>\n *   <file name=\"index.html\">\n *    <form name=\"myForm\" ng-controller=\"ExampleController\">\n *      <label>List: <input name=\"namesInput\" ng-model=\"names\" ng-list required></label>\n *      <span role=\"alert\">\n *        <span class=\"error\" ng-show=\"myForm.namesInput.$error.required\">\n *        Required!</span>\n *      </span>\n *      <br>\n *      <tt>names = {{names}}</tt><br/>\n *      <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>\n *      <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>\n *      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n *      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n *     </form>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var listInput = element(by.model('names'));\n *     var names = element(by.exactBinding('names'));\n *     var valid = element(by.binding('myForm.namesInput.$valid'));\n *     var error = element(by.css('span.error'));\n *\n *     it('should initialize to model', function() {\n *       expect(names.getText()).toContain('[\"morpheus\",\"neo\",\"trinity\"]');\n *       expect(valid.getText()).toContain('true');\n *       expect(error.getCssValue('display')).toBe('none');\n *     });\n *\n *     it('should be invalid if empty', function() {\n *       listInput.clear();\n *       listInput.sendKeys('');\n *\n *       expect(names.getText()).toContain('');\n *       expect(valid.getText()).toContain('false');\n *       expect(error.getCssValue('display')).not.toBe('none');\n *     });\n *   </file>\n * </example>\n *\n * ### Example - splitting on newline\n * <example name=\"ngList-directive-newlines\">\n *   <file name=\"index.html\">\n *    <textarea ng-model=\"list\" ng-list=\"&#10;\" ng-trim=\"false\"></textarea>\n *    <pre>{{ list | json }}</pre>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it(\"should split the text by newlines\", function() {\n *       var listInput = element(by.model('list'));\n *       var output = element(by.binding('list | json'));\n *       listInput.sendKeys('abc\\ndef\\nghi');\n *       expect(output.getText()).toContain('[\\n  \"abc\",\\n  \"def\",\\n  \"ghi\"\\n]');\n *     });\n *   </file>\n * </example>\n *\n * @element input\n * @param {string=} ngList optional delimiter that should be used to split the value.\n */\nvar ngListDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    require: 'ngModel',\n    link: function(scope, element, attr, ctrl) {\n      // We want to control whitespace trimming so we use this convoluted approach\n      // to access the ngList attribute, which doesn't pre-trim the attribute\n      var ngList = element.attr(attr.$attr.ngList) || ', ';\n      var trimValues = attr.ngTrim !== 'false';\n      var separator = trimValues ? trim(ngList) : ngList;\n\n      var parse = function(viewValue) {\n        // If the viewValue is invalid (say required but empty) it will be `undefined`\n        if (isUndefined(viewValue)) return;\n\n        var list = [];\n\n        if (viewValue) {\n          forEach(viewValue.split(separator), function(value) {\n            if (value) list.push(trimValues ? trim(value) : value);\n          });\n        }\n\n        return list;\n      };\n\n      ctrl.$parsers.push(parse);\n      ctrl.$formatters.push(function(value) {\n        if (isArray(value)) {\n          return value.join(ngList);\n        }\n\n        return undefined;\n      });\n\n      // Override the standard $isEmpty because an empty array means the input is empty.\n      ctrl.$isEmpty = function(value) {\n        return !value || !value.length;\n      };\n    }\n  };\n};\n\n/* global VALID_CLASS: true,\n  INVALID_CLASS: true,\n  PRISTINE_CLASS: true,\n  DIRTY_CLASS: true,\n  UNTOUCHED_CLASS: true,\n  TOUCHED_CLASS: true\n*/\n\nvar VALID_CLASS = 'ng-valid',\n    INVALID_CLASS = 'ng-invalid',\n    PRISTINE_CLASS = 'ng-pristine',\n    DIRTY_CLASS = 'ng-dirty',\n    UNTOUCHED_CLASS = 'ng-untouched',\n    TOUCHED_CLASS = 'ng-touched',\n    PENDING_CLASS = 'ng-pending',\n    EMPTY_CLASS = 'ng-empty',\n    NOT_EMPTY_CLASS = 'ng-not-empty';\n\nvar ngModelMinErr = minErr('ngModel');\n\n/**\n * @ngdoc type\n * @name ngModel.NgModelController\n *\n * @property {*} $viewValue The actual value from the control's view. For `input` elements, this is a\n * String. See {@link ngModel.NgModelController#$setViewValue} for information about when the $viewValue\n * is set.\n * @property {*} $modelValue The value in the model that the control is bound to.\n * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever\n       the control reads value from the DOM. The functions are called in array order, each passing\n       its return value through to the next. The last return value is forwarded to the\n       {@link ngModel.NgModelController#$validators `$validators`} collection.\n\nParsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue\n`$viewValue`}.\n\nReturning `undefined` from a parser means a parse error occurred. In that case,\nno {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel`\nwill be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`}\nis set to `true`. The parse error is stored in `ngModel.$error.parse`.\n\n *\n * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever\n       the model value changes. The functions are called in reverse array order, each passing the value through to the\n       next. The last return value is used as the actual DOM value.\n       Used to format / convert values for display in the control.\n * ```js\n * function formatter(value) {\n *   if (value) {\n *     return value.toUpperCase();\n *   }\n * }\n * ngModel.$formatters.push(formatter);\n * ```\n *\n * @property {Object.<string, function>} $validators A collection of validators that are applied\n *      whenever the model value changes. The key value within the object refers to the name of the\n *      validator while the function refers to the validation operation. The validation operation is\n *      provided with the model value as an argument and must return a true or false value depending\n *      on the response of that validation.\n *\n * ```js\n * ngModel.$validators.validCharacters = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *   return /[0-9]+/.test(value) &&\n *          /[a-z]+/.test(value) &&\n *          /[A-Z]+/.test(value) &&\n *          /\\W+/.test(value);\n * };\n * ```\n *\n * @property {Object.<string, function>} $asyncValidators A collection of validations that are expected to\n *      perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided\n *      is expected to return a promise when it is run during the model validation process. Once the promise\n *      is delivered then the validation status will be set to true when fulfilled and false when rejected.\n *      When the asynchronous validators are triggered, each of the validators will run in parallel and the model\n *      value will only be updated once all validators have been fulfilled. As long as an asynchronous validator\n *      is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators\n *      will only run once all synchronous validators have passed.\n *\n * Please note that if $http is used then it is important that the server returns a success HTTP response code\n * in order to fulfill the validation and a status level of `4xx` in order to reject the validation.\n *\n * ```js\n * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *\n *   // Lookup user by username\n *   return $http.get('/api/users/' + value).\n *      then(function resolved() {\n *        //username exists, this means validation fails\n *        return $q.reject('exists');\n *      }, function rejected() {\n *        //username does not exist, therefore this validation passes\n *        return true;\n *      });\n * };\n * ```\n *\n * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever the\n *     view value has changed. It is called with no arguments, and its return value is ignored.\n *     This can be used in place of additional $watches against the model value.\n *\n * @property {Object} $error An object hash with all failing validator ids as keys.\n * @property {Object} $pending An object hash with all pending validator ids as keys.\n *\n * @property {boolean} $untouched True if control has not lost focus yet.\n * @property {boolean} $touched True if control has lost focus.\n * @property {boolean} $pristine True if user has not interacted with the control yet.\n * @property {boolean} $dirty True if user has already interacted with the control.\n * @property {boolean} $valid True if there is no error.\n * @property {boolean} $invalid True if at least one error on the control.\n * @property {string} $name The name attribute of the control.\n *\n * @description\n *\n * `NgModelController` provides API for the {@link ngModel `ngModel`} directive.\n * The controller contains services for data-binding, validation, CSS updates, and value formatting\n * and parsing. It purposefully does not contain any logic which deals with DOM rendering or\n * listening to DOM events.\n * Such DOM related logic should be provided by other directives which make use of\n * `NgModelController` for data-binding to control elements.\n * Angular provides this DOM logic for most {@link input `input`} elements.\n * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example\n * custom control example} that uses `ngModelController` to bind to `contenteditable` elements.\n *\n * @example\n * ### Custom Control Example\n * This example shows how to use `NgModelController` with a custom control to achieve\n * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)\n * collaborate together to achieve the desired result.\n *\n * `contenteditable` is an HTML5 attribute, which tells the browser to let the element\n * contents be edited in place by the user.\n *\n * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}\n * module to automatically remove \"bad\" content like inline event listener (e.g. `<span onclick=\"...\">`).\n * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks\n * that content using the `$sce` service.\n *\n * <example name=\"NgModelController\" module=\"customControl\" deps=\"angular-sanitize.js\">\n    <file name=\"style.css\">\n      [contenteditable] {\n        border: 1px solid black;\n        background-color: white;\n        min-height: 20px;\n      }\n\n      .ng-invalid {\n        border: 1px solid red;\n      }\n\n    </file>\n    <file name=\"script.js\">\n      angular.module('customControl', ['ngSanitize']).\n        directive('contenteditable', ['$sce', function($sce) {\n          return {\n            restrict: 'A', // only activate on element attribute\n            require: '?ngModel', // get a hold of NgModelController\n            link: function(scope, element, attrs, ngModel) {\n              if (!ngModel) return; // do nothing if no ng-model\n\n              // Specify how UI should be updated\n              ngModel.$render = function() {\n                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));\n              };\n\n              // Listen for change events to enable binding\n              element.on('blur keyup change', function() {\n                scope.$evalAsync(read);\n              });\n              read(); // initialize\n\n              // Write data to the model\n              function read() {\n                var html = element.html();\n                // When we clear the content editable the browser leaves a <br> behind\n                // If strip-br attribute is provided then we strip this out\n                if (attrs.stripBr && html === '<br>') {\n                  html = '';\n                }\n                ngModel.$setViewValue(html);\n              }\n            }\n          };\n        }]);\n    </file>\n    <file name=\"index.html\">\n      <form name=\"myForm\">\n       <div contenteditable\n            name=\"myWidget\" ng-model=\"userContent\"\n            strip-br=\"true\"\n            required>Change me!</div>\n        <span ng-show=\"myForm.myWidget.$error.required\">Required!</span>\n       <hr>\n       <textarea ng-model=\"userContent\" aria-label=\"Dynamic textarea\"></textarea>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n    it('should data-bind and become invalid', function() {\n      if (browser.params.browser === 'safari' || browser.params.browser === 'firefox') {\n        // SafariDriver can't handle contenteditable\n        // and Firefox driver can't clear contenteditables very well\n        return;\n      }\n      var contentEditable = element(by.css('[contenteditable]'));\n      var content = 'Change me!';\n\n      expect(contentEditable.getText()).toEqual(content);\n\n      contentEditable.clear();\n      contentEditable.sendKeys(protractor.Key.BACK_SPACE);\n      expect(contentEditable.getText()).toEqual('');\n      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);\n    });\n    </file>\n * </example>\n *\n *\n */\nvar NgModelController = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$rootScope', '$q', '$interpolate',\n    /** @this */ function($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $rootScope, $q, $interpolate) {\n  this.$viewValue = Number.NaN;\n  this.$modelValue = Number.NaN;\n  this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity.\n  this.$validators = {};\n  this.$asyncValidators = {};\n  this.$parsers = [];\n  this.$formatters = [];\n  this.$viewChangeListeners = [];\n  this.$untouched = true;\n  this.$touched = false;\n  this.$pristine = true;\n  this.$dirty = false;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$error = {}; // keep invalid keys here\n  this.$$success = {}; // keep valid keys here\n  this.$pending = undefined; // keep pending keys here\n  this.$name = $interpolate($attr.name || '', false)($scope);\n  this.$$parentForm = nullFormCtrl;\n\n  var parsedNgModel = $parse($attr.ngModel),\n      parsedNgModelAssign = parsedNgModel.assign,\n      ngModelGet = parsedNgModel,\n      ngModelSet = parsedNgModelAssign,\n      pendingDebounce = null,\n      parserValid,\n      ctrl = this;\n\n  this.$$setOptions = function(options) {\n    ctrl.$options = options;\n    if (options && options.getterSetter) {\n      var invokeModelGetter = $parse($attr.ngModel + '()'),\n          invokeModelSetter = $parse($attr.ngModel + '($$$p)');\n\n      ngModelGet = function($scope) {\n        var modelValue = parsedNgModel($scope);\n        if (isFunction(modelValue)) {\n          modelValue = invokeModelGetter($scope);\n        }\n        return modelValue;\n      };\n      ngModelSet = function($scope, newValue) {\n        if (isFunction(parsedNgModel($scope))) {\n          invokeModelSetter($scope, {$$$p: newValue});\n        } else {\n          parsedNgModelAssign($scope, newValue);\n        }\n      };\n    } else if (!parsedNgModel.assign) {\n      throw ngModelMinErr('nonassign', 'Expression \\'{0}\\' is non-assignable. Element: {1}',\n          $attr.ngModel, startingTag($element));\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$render\n   *\n   * @description\n   * Called when the view needs to be updated. It is expected that the user of the ng-model\n   * directive will implement this method.\n   *\n   * The `$render()` method is invoked in the following situations:\n   *\n   * * `$rollbackViewValue()` is called.  If we are rolling back the view value to the last\n   *   committed value then `$render()` is called to update the input control.\n   * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and\n   *   the `$viewValue` are different from last time.\n   *\n   * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of\n   * `$modelValue` and `$viewValue` are actually different from their previous values. If `$modelValue`\n   * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be\n   * invoked if you only change a property on the objects.\n   */\n  this.$render = noop;\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$isEmpty\n   *\n   * @description\n   * This is called when we need to determine if the value of an input is empty.\n   *\n   * For instance, the required directive does this to work out if the input has data or not.\n   *\n   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.\n   *\n   * You can override this for input directives whose concept of being empty is different from the\n   * default. The `checkboxInputType` directive does this because in its case a value of `false`\n   * implies empty.\n   *\n   * @param {*} value The value of the input to check for emptiness.\n   * @returns {boolean} True if `value` is \"empty\".\n   */\n  this.$isEmpty = function(value) {\n    // eslint-disable-next-line no-self-compare\n    return isUndefined(value) || value === '' || value === null || value !== value;\n  };\n\n  this.$$updateEmptyClasses = function(value) {\n    if (ctrl.$isEmpty(value)) {\n      $animate.removeClass($element, NOT_EMPTY_CLASS);\n      $animate.addClass($element, EMPTY_CLASS);\n    } else {\n      $animate.removeClass($element, EMPTY_CLASS);\n      $animate.addClass($element, NOT_EMPTY_CLASS);\n    }\n  };\n\n\n  var currentValidationRunId = 0;\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setValidity\n   *\n   * @description\n   * Change the validity state, and notify the form.\n   *\n   * This method can be called within $parsers/$formatters or a custom validation implementation.\n   * However, in most cases it should be sufficient to use the `ngModel.$validators` and\n   * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically.\n   *\n   * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned\n   *        to either `$error[validationErrorKey]` or `$pending[validationErrorKey]`\n   *        (for unfulfilled `$asyncValidators`), so that it is available for data-binding.\n   *        The `validationErrorKey` should be in camelCase and will get converted into dash-case\n   *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`\n   *        class and can be bound to as  `{{someForm.someControl.$error.myError}}` .\n   * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined),\n   *                          or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n   *                          Skipped is used by Angular when validators do not run because of parse errors and\n   *                          when `$asyncValidators` do not run because any of the `$validators` failed.\n   */\n  addSetValidityMethod({\n    ctrl: this,\n    $element: $element,\n    set: function(object, property) {\n      object[property] = true;\n    },\n    unset: function(object, property) {\n      delete object[property];\n    },\n    $animate: $animate\n  });\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setPristine\n   *\n   * @description\n   * Sets the control to its pristine state.\n   *\n   * This method can be called to remove the `ng-dirty` class and set the control to its pristine\n   * state (`ng-pristine` class). A model is considered to be pristine when the control\n   * has not been changed from when first compiled.\n   */\n  this.$setPristine = function() {\n    ctrl.$dirty = false;\n    ctrl.$pristine = true;\n    $animate.removeClass($element, DIRTY_CLASS);\n    $animate.addClass($element, PRISTINE_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setDirty\n   *\n   * @description\n   * Sets the control to its dirty state.\n   *\n   * This method can be called to remove the `ng-pristine` class and set the control to its dirty\n   * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed\n   * from when first compiled.\n   */\n  this.$setDirty = function() {\n    ctrl.$dirty = true;\n    ctrl.$pristine = false;\n    $animate.removeClass($element, PRISTINE_CLASS);\n    $animate.addClass($element, DIRTY_CLASS);\n    ctrl.$$parentForm.$setDirty();\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setUntouched\n   *\n   * @description\n   * Sets the control to its untouched state.\n   *\n   * This method can be called to remove the `ng-touched` class and set the control to its\n   * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched\n   * by default, however this function can be used to restore that state if the model has\n   * already been touched by the user.\n   */\n  this.$setUntouched = function() {\n    ctrl.$touched = false;\n    ctrl.$untouched = true;\n    $animate.setClass($element, UNTOUCHED_CLASS, TOUCHED_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setTouched\n   *\n   * @description\n   * Sets the control to its touched state.\n   *\n   * This method can be called to remove the `ng-untouched` class and set the control to its\n   * touched state (`ng-touched` class). A model is considered to be touched when the user has\n   * first focused the control element and then shifted focus away from the control (blur event).\n   */\n  this.$setTouched = function() {\n    ctrl.$touched = true;\n    ctrl.$untouched = false;\n    $animate.setClass($element, TOUCHED_CLASS, UNTOUCHED_CLASS);\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$rollbackViewValue\n   *\n   * @description\n   * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`,\n   * which may be caused by a pending debounced event or because the input is waiting for some\n   * future event.\n   *\n   * If you have an input that uses `ng-model-options` to set up debounced updates or updates that\n   * depend on special events such as `blur`, there can be a period when the `$viewValue` is out of\n   * sync with the ngModel's `$modelValue`.\n   *\n   * In this case, you can use `$rollbackViewValue()` to manually cancel the debounced / future update\n   * and reset the input to the last committed view value.\n   *\n   * It is also possible that you run into difficulties if you try to update the ngModel's `$modelValue`\n   * programmatically before these debounced/future events have resolved/occurred, because Angular's\n   * dirty checking mechanism is not able to tell whether the model has actually changed or not.\n   *\n   * The `$rollbackViewValue()` method should be called before programmatically changing the model of an\n   * input which may have such events pending. This is important in order to make sure that the\n   * input field will be updated with the new model value and any pending operations are cancelled.\n   *\n   * <example name=\"ng-model-cancel-update\" module=\"cancel-update-example\">\n   *   <file name=\"app.js\">\n   *     angular.module('cancel-update-example', [])\n   *\n   *     .controller('CancelUpdateController', ['$scope', function($scope) {\n   *       $scope.model = {value1: '', value2: ''};\n   *\n   *       $scope.setEmpty = function(e, value, rollback) {\n   *         if (e.keyCode === 27) {\n   *           e.preventDefault();\n   *           if (rollback) {\n   *             $scope.myForm[value].$rollbackViewValue();\n   *           }\n   *           $scope.model[value] = '';\n   *         }\n   *       };\n   *     }]);\n   *   </file>\n   *   <file name=\"index.html\">\n   *     <div ng-controller=\"CancelUpdateController\">\n   *       <p>Both of these inputs are only updated if they are blurred. Hitting escape should\n   *       empty them. Follow these steps and observe the difference:</p>\n   *       <ol>\n   *         <li>Type something in the input. You will see that the model is not yet updated</li>\n   *         <li>Press the Escape key.\n   *           <ol>\n   *             <li> In the first example, nothing happens, because the model is already '', and no\n   *             update is detected. If you blur the input, the model will be set to the current view.\n   *             </li>\n   *             <li> In the second example, the pending update is cancelled, and the input is set back\n   *             to the last committed view value (''). Blurring the input does nothing.\n   *             </li>\n   *           </ol>\n   *         </li>\n   *       </ol>\n   *\n   *       <form name=\"myForm\" ng-model-options=\"{ updateOn: 'blur' }\">\n   *         <div>\n   *           <p id=\"inputDescription1\">Without $rollbackViewValue():</p>\n   *           <input name=\"value1\" aria-describedby=\"inputDescription1\" ng-model=\"model.value1\"\n   *                  ng-keydown=\"setEmpty($event, 'value1')\">\n   *           value1: \"{{ model.value1 }}\"\n   *         </div>\n   *\n   *         <div>\n   *           <p id=\"inputDescription2\">With $rollbackViewValue():</p>\n   *           <input name=\"value2\" aria-describedby=\"inputDescription2\" ng-model=\"model.value2\"\n   *                  ng-keydown=\"setEmpty($event, 'value2', true)\">\n   *           value2: \"{{ model.value2 }}\"\n   *         </div>\n   *       </form>\n   *     </div>\n   *   </file>\n       <file name=\"style.css\">\n          div {\n            display: table-cell;\n          }\n          div:nth-child(1) {\n            padding-right: 30px;\n          }\n\n        </file>\n   * </example>\n   */\n  this.$rollbackViewValue = function() {\n    $timeout.cancel(pendingDebounce);\n    ctrl.$viewValue = ctrl.$$lastCommittedViewValue;\n    ctrl.$render();\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$validate\n   *\n   * @description\n   * Runs each of the registered validators (first synchronous validators and then\n   * asynchronous validators).\n   * If the validity changes to invalid, the model will be set to `undefined`,\n   * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`.\n   * If the validity changes to valid, it will set the model to the last available valid\n   * `$modelValue`, i.e. either the last parsed value or the last value set from the scope.\n   */\n  this.$validate = function() {\n    // ignore $validate before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    var viewValue = ctrl.$$lastCommittedViewValue;\n    // Note: we use the $$rawModelValue as $modelValue might have been\n    // set to undefined during a view -> model update that found validation\n    // errors. We can't parse the view here, since that could change\n    // the model although neither viewValue nor the model on the scope changed\n    var modelValue = ctrl.$$rawModelValue;\n\n    var prevValid = ctrl.$valid;\n    var prevModelValue = ctrl.$modelValue;\n\n    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;\n\n    ctrl.$$runValidators(modelValue, viewValue, function(allValid) {\n      // If there was no change in validity, don't update the model\n      // This prevents changing an invalid modelValue to undefined\n      if (!allowInvalid && prevValid !== allValid) {\n        // Note: Don't check ctrl.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        ctrl.$modelValue = allValid ? modelValue : undefined;\n\n        if (ctrl.$modelValue !== prevModelValue) {\n          ctrl.$$writeModelToScope();\n        }\n      }\n    });\n\n  };\n\n  this.$$runValidators = function(modelValue, viewValue, doneCallback) {\n    currentValidationRunId++;\n    var localValidationRunId = currentValidationRunId;\n\n    // check parser error\n    if (!processParseErrors()) {\n      validationDone(false);\n      return;\n    }\n    if (!processSyncValidators()) {\n      validationDone(false);\n      return;\n    }\n    processAsyncValidators();\n\n    function processParseErrors() {\n      var errorKey = ctrl.$$parserName || 'parse';\n      if (isUndefined(parserValid)) {\n        setValidity(errorKey, null);\n      } else {\n        if (!parserValid) {\n          forEach(ctrl.$validators, function(v, name) {\n            setValidity(name, null);\n          });\n          forEach(ctrl.$asyncValidators, function(v, name) {\n            setValidity(name, null);\n          });\n        }\n        // Set the parse error last, to prevent unsetting it, should a $validators key == parserName\n        setValidity(errorKey, parserValid);\n        return parserValid;\n      }\n      return true;\n    }\n\n    function processSyncValidators() {\n      var syncValidatorsValid = true;\n      forEach(ctrl.$validators, function(validator, name) {\n        var result = validator(modelValue, viewValue);\n        syncValidatorsValid = syncValidatorsValid && result;\n        setValidity(name, result);\n      });\n      if (!syncValidatorsValid) {\n        forEach(ctrl.$asyncValidators, function(v, name) {\n          setValidity(name, null);\n        });\n        return false;\n      }\n      return true;\n    }\n\n    function processAsyncValidators() {\n      var validatorPromises = [];\n      var allValid = true;\n      forEach(ctrl.$asyncValidators, function(validator, name) {\n        var promise = validator(modelValue, viewValue);\n        if (!isPromiseLike(promise)) {\n          throw ngModelMinErr('nopromise',\n            'Expected asynchronous validator to return a promise but got \\'{0}\\' instead.', promise);\n        }\n        setValidity(name, undefined);\n        validatorPromises.push(promise.then(function() {\n          setValidity(name, true);\n        }, function() {\n          allValid = false;\n          setValidity(name, false);\n        }));\n      });\n      if (!validatorPromises.length) {\n        validationDone(true);\n      } else {\n        $q.all(validatorPromises).then(function() {\n          validationDone(allValid);\n        }, noop);\n      }\n    }\n\n    function setValidity(name, isValid) {\n      if (localValidationRunId === currentValidationRunId) {\n        ctrl.$setValidity(name, isValid);\n      }\n    }\n\n    function validationDone(allValid) {\n      if (localValidationRunId === currentValidationRunId) {\n\n        doneCallback(allValid);\n      }\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$commitViewValue\n   *\n   * @description\n   * Commit a pending update to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. this method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  this.$commitViewValue = function() {\n    var viewValue = ctrl.$viewValue;\n\n    $timeout.cancel(pendingDebounce);\n\n    // If the view value has not changed then we should just exit, except in the case where there is\n    // a native validator on the element. In this case the validation state may have changed even though\n    // the viewValue has stayed empty.\n    if (ctrl.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !ctrl.$$hasNativeValidators)) {\n      return;\n    }\n    ctrl.$$updateEmptyClasses(viewValue);\n    ctrl.$$lastCommittedViewValue = viewValue;\n\n    // change to dirty\n    if (ctrl.$pristine) {\n      this.$setDirty();\n    }\n    this.$$parseAndValidate();\n  };\n\n  this.$$parseAndValidate = function() {\n    var viewValue = ctrl.$$lastCommittedViewValue;\n    var modelValue = viewValue;\n    parserValid = isUndefined(modelValue) ? undefined : true;\n\n    if (parserValid) {\n      for (var i = 0; i < ctrl.$parsers.length; i++) {\n        modelValue = ctrl.$parsers[i](modelValue);\n        if (isUndefined(modelValue)) {\n          parserValid = false;\n          break;\n        }\n      }\n    }\n    if (isNumberNaN(ctrl.$modelValue)) {\n      // ctrl.$modelValue has not been touched yet...\n      ctrl.$modelValue = ngModelGet($scope);\n    }\n    var prevModelValue = ctrl.$modelValue;\n    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;\n    ctrl.$$rawModelValue = modelValue;\n\n    if (allowInvalid) {\n      ctrl.$modelValue = modelValue;\n      writeToModelIfNeeded();\n    }\n\n    // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date.\n    // This can happen if e.g. $setViewValue is called from inside a parser\n    ctrl.$$runValidators(modelValue, ctrl.$$lastCommittedViewValue, function(allValid) {\n      if (!allowInvalid) {\n        // Note: Don't check ctrl.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        ctrl.$modelValue = allValid ? modelValue : undefined;\n        writeToModelIfNeeded();\n      }\n    });\n\n    function writeToModelIfNeeded() {\n      if (ctrl.$modelValue !== prevModelValue) {\n        ctrl.$$writeModelToScope();\n      }\n    }\n  };\n\n  this.$$writeModelToScope = function() {\n    ngModelSet($scope, ctrl.$modelValue);\n    forEach(ctrl.$viewChangeListeners, function(listener) {\n      try {\n        listener();\n      } catch (e) {\n        $exceptionHandler(e);\n      }\n    });\n  };\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setViewValue\n   *\n   * @description\n   * Update the view value.\n   *\n   * This method should be called when a control wants to change the view value; typically,\n   * this is done from within a DOM event handler. For example, the {@link ng.directive:input input}\n   * directive calls it when the value of the input changes and {@link ng.directive:select select}\n   * calls it when an option is selected.\n   *\n   * When `$setViewValue` is called, the new `value` will be staged for committing through the `$parsers`\n   * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged\n   * value sent directly for processing, finally to be applied to `$modelValue` and then the\n   * **expression** specified in the `ng-model` attribute. Lastly, all the registered change listeners,\n   * in the `$viewChangeListeners` list, are called.\n   *\n   * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn`\n   * and the `default` trigger is not listed, all those actions will remain pending until one of the\n   * `updateOn` events is triggered on the DOM element.\n   * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions}\n   * directive is used with a custom debounce for this particular event.\n   * Note that a `$digest` is only triggered once the `updateOn` events are fired, or if `debounce`\n   * is specified, once the timer runs out.\n   *\n   * When used with standard inputs, the view value will always be a string (which is in some cases\n   * parsed into another type, such as a `Date` object for `input[date]`.)\n   * However, custom controls might also pass objects to this method. In this case, we should make\n   * a copy of the object before passing it to `$setViewValue`. This is because `ngModel` does not\n   * perform a deep watch of objects, it only looks for a change of identity. If you only change\n   * the property of the object then ngModel will not realize that the object has changed and\n   * will not invoke the `$parsers` and `$validators` pipelines. For this reason, you should\n   * not change properties of the copy once it has been passed to `$setViewValue`.\n   * Otherwise you may cause the model value on the scope to change incorrectly.\n   *\n   * <div class=\"alert alert-info\">\n   * In any case, the value passed to the method should always reflect the current value\n   * of the control. For example, if you are calling `$setViewValue` for an input element,\n   * you should pass the input DOM value. Otherwise, the control and the scope model become\n   * out of sync. It's also important to note that `$setViewValue` does not call `$render` or change\n   * the control's DOM value in any way. If we want to change the control's DOM value\n   * programmatically, we should update the `ngModel` scope expression. Its new value will be\n   * picked up by the model controller, which will run it through the `$formatters`, `$render` it\n   * to update the DOM, and finally call `$validate` on it.\n   * </div>\n   *\n   * @param {*} value value from the view.\n   * @param {string} trigger Event that triggered the update.\n   */\n  this.$setViewValue = function(value, trigger) {\n    ctrl.$viewValue = value;\n    if (!ctrl.$options || ctrl.$options.updateOnDefault) {\n      ctrl.$$debounceViewValueCommit(trigger);\n    }\n  };\n\n  this.$$debounceViewValueCommit = function(trigger) {\n    var debounceDelay = 0,\n        options = ctrl.$options,\n        debounce;\n\n    if (options && isDefined(options.debounce)) {\n      debounce = options.debounce;\n      if (isNumber(debounce)) {\n        debounceDelay = debounce;\n      } else if (isNumber(debounce[trigger])) {\n        debounceDelay = debounce[trigger];\n      } else if (isNumber(debounce['default'])) {\n        debounceDelay = debounce['default'];\n      }\n    }\n\n    $timeout.cancel(pendingDebounce);\n    if (debounceDelay) {\n      pendingDebounce = $timeout(function() {\n        ctrl.$commitViewValue();\n      }, debounceDelay);\n    } else if ($rootScope.$$phase) {\n      ctrl.$commitViewValue();\n    } else {\n      $scope.$apply(function() {\n        ctrl.$commitViewValue();\n      });\n    }\n  };\n\n  // model -> value\n  // Note: we cannot use a normal scope.$watch as we want to detect the following:\n  // 1. scope value is 'a'\n  // 2. user enters 'b'\n  // 3. ng-change kicks in and reverts scope value to 'a'\n  //    -> scope value did not change since the last digest as\n  //       ng-change executes in apply phase\n  // 4. view should be changed back to 'a'\n  $scope.$watch(function ngModelWatch() {\n    var modelValue = ngModelGet($scope);\n\n    // if scope model value and ngModel value are out of sync\n    // TODO(perf): why not move this to the action fn?\n    if (modelValue !== ctrl.$modelValue &&\n       // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator\n        // eslint-disable-next-line no-self-compare\n       (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue)\n    ) {\n      ctrl.$modelValue = ctrl.$$rawModelValue = modelValue;\n      parserValid = undefined;\n\n      var formatters = ctrl.$formatters,\n          idx = formatters.length;\n\n      var viewValue = modelValue;\n      while (idx--) {\n        viewValue = formatters[idx](viewValue);\n      }\n      if (ctrl.$viewValue !== viewValue) {\n        ctrl.$$updateEmptyClasses(viewValue);\n        ctrl.$viewValue = ctrl.$$lastCommittedViewValue = viewValue;\n        ctrl.$render();\n\n        // It is possible that model and view value have been updated during render\n        ctrl.$$runValidators(ctrl.$modelValue, ctrl.$viewValue, noop);\n      }\n    }\n\n    return modelValue;\n  });\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngModel\n *\n * @element input\n * @priority 1\n *\n * @description\n * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a\n * property on the scope using {@link ngModel.NgModelController NgModelController},\n * which is created and exposed by this directive.\n *\n * `ngModel` is responsible for:\n *\n * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`\n *   require.\n * - Providing validation behavior (i.e. required, number, email, url).\n * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors).\n * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`,\n *   `ng-untouched`, `ng-empty`, `ng-not-empty`) including animations.\n * - Registering the control with its parent {@link ng.directive:form form}.\n *\n * Note: `ngModel` will try to bind to the property given by evaluating the expression on the\n * current scope. If the property doesn't already exist on this scope, it will be created\n * implicitly and added to the scope.\n *\n * For best practices on using `ngModel`, see:\n *\n *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)\n *\n * For basic examples, how to use `ngModel`, see:\n *\n *  - {@link ng.directive:input input}\n *    - {@link input[text] text}\n *    - {@link input[checkbox] checkbox}\n *    - {@link input[radio] radio}\n *    - {@link input[number] number}\n *    - {@link input[email] email}\n *    - {@link input[url] url}\n *    - {@link input[date] date}\n *    - {@link input[datetime-local] datetime-local}\n *    - {@link input[time] time}\n *    - {@link input[month] month}\n *    - {@link input[week] week}\n *  - {@link ng.directive:select select}\n *  - {@link ng.directive:textarea textarea}\n *\n * # Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding inputs to models that are objects (e.g. `Date`) or collections (e.g. arrays). If only properties of the\n * object or collection change, `ngModel` will not be notified and so the input will not be  re-rendered.\n *\n * The model must be assigned an entirely new object or collection before a re-rendering will occur.\n *\n * Some directives have options that will cause them to use a custom `$watchCollection` on the model expression\n * - for example, `ngOptions` will do so when a `track by` clause is included in the comprehension expression or\n * if the select is given the `multiple` attribute.\n *\n * The `$watchCollection()` method only does a shallow comparison, meaning that changing properties deeper than the\n * first level of the object (or only changing the properties of an item in the collection if it's an array) will still\n * not trigger a re-rendering of the model.\n *\n * # CSS classes\n * The following CSS classes are added and removed on the associated input/select/textarea element\n * depending on the validity of the model.\n *\n *  - `ng-valid`: the model is valid\n *  - `ng-invalid`: the model is invalid\n *  - `ng-valid-[key]`: for each valid key added by `$setValidity`\n *  - `ng-invalid-[key]`: for each invalid key added by `$setValidity`\n *  - `ng-pristine`: the control hasn't been interacted with yet\n *  - `ng-dirty`: the control has been interacted with\n *  - `ng-touched`: the control has been blurred\n *  - `ng-untouched`: the control hasn't been blurred\n *  - `ng-pending`: any `$asyncValidators` are unfulfilled\n *  - `ng-empty`: the view does not contain a value or the value is deemed \"empty\", as defined\n *     by the {@link ngModel.NgModelController#$isEmpty} method\n *  - `ng-not-empty`: the view contains a non-empty value\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n * ## Animation Hooks\n *\n * Animations within models are triggered when any of the associated CSS classes are added and removed\n * on the input element which is attached to the model. These classes include: `.ng-pristine`, `.ng-dirty`,\n * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.\n * The animations that are triggered within ngModel are similar to how they work in ngClass and\n * animations can be hooked into using CSS transitions, keyframes as well as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style an input element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-input {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-input.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n * <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"inputExample\" name=\"ng-model\">\n     <file name=\"index.html\">\n       <script>\n        angular.module('inputExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.val = '1';\n          }]);\n       </script>\n       <style>\n         .my-input {\n           transition:all linear 0.5s;\n           background: transparent;\n         }\n         .my-input.ng-invalid {\n           color:white;\n           background: red;\n         }\n       </style>\n       <p id=\"inputDescription\">\n        Update input to see transitions when valid/invalid.\n        Integer is a valid value.\n       </p>\n       <form name=\"testForm\" ng-controller=\"ExampleController\">\n         <input ng-model=\"val\" ng-pattern=\"/^\\d+$/\" name=\"anim\" class=\"my-input\"\n                aria-describedby=\"inputDescription\" />\n       </form>\n     </file>\n * </example>\n *\n * ## Binding to a getter/setter\n *\n * Sometimes it's helpful to bind `ngModel` to a getter/setter function.  A getter/setter is a\n * function that returns a representation of the model when called with zero arguments, and sets\n * the internal state of a model when called with an argument. It's sometimes useful to use this\n * for models that have an internal representation that's different from what the model exposes\n * to the view.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's best to keep getters fast because Angular is likely to call them more\n * frequently than other parts of your code.\n * </div>\n *\n * You use this behavior by adding `ng-model-options=\"{ getterSetter: true }\"` to an element that\n * has `ng-model` attached to it. You can also add `ng-model-options=\"{ getterSetter: true }\"` to\n * a `<form>`, which will enable this behavior for all `<input>`s within it. See\n * {@link ng.directive:ngModelOptions `ngModelOptions`} for more.\n *\n * The following example shows how to use `ngModel` with a getter/setter:\n *\n * @example\n * <example name=\"ngModel-getter-setter\" module=\"getterSetterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <form name=\"userForm\">\n           <label>Name:\n             <input type=\"text\" name=\"userName\"\n                    ng-model=\"user.name\"\n                    ng-model-options=\"{ getterSetter: true }\" />\n           </label>\n         </form>\n         <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n       </div>\n     </file>\n     <file name=\"app.js\">\n       angular.module('getterSetterExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var _name = 'Brian';\n           $scope.user = {\n             name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n             }\n           };\n         }]);\n     </file>\n * </example>\n */\nvar ngModelDirective = ['$rootScope', function($rootScope) {\n  return {\n    restrict: 'A',\n    require: ['ngModel', '^?form', '^?ngModelOptions'],\n    controller: NgModelController,\n    // Prelink needs to run before any input directive\n    // so that we can set the NgModelOptions in NgModelController\n    // before anyone else uses it.\n    priority: 1,\n    compile: function ngModelCompile(element) {\n      // Setup initial state of the control\n      element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS);\n\n      return {\n        pre: function ngModelPreLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0],\n              formCtrl = ctrls[1] || modelCtrl.$$parentForm;\n\n          modelCtrl.$$setOptions(ctrls[2] && ctrls[2].$options);\n\n          // notify others, especially parent forms\n          formCtrl.$addControl(modelCtrl);\n\n          attr.$observe('name', function(newValue) {\n            if (modelCtrl.$name !== newValue) {\n              modelCtrl.$$parentForm.$$renameControl(modelCtrl, newValue);\n            }\n          });\n\n          scope.$on('$destroy', function() {\n            modelCtrl.$$parentForm.$removeControl(modelCtrl);\n          });\n        },\n        post: function ngModelPostLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0];\n          if (modelCtrl.$options && modelCtrl.$options.updateOn) {\n            element.on(modelCtrl.$options.updateOn, function(ev) {\n              modelCtrl.$$debounceViewValueCommit(ev && ev.type);\n            });\n          }\n\n          element.on('blur', function() {\n            if (modelCtrl.$touched) return;\n\n            if ($rootScope.$$phase) {\n              scope.$evalAsync(modelCtrl.$setTouched);\n            } else {\n              scope.$apply(modelCtrl.$setTouched);\n            }\n          });\n        }\n      };\n    }\n  };\n}];\n\n\n\nvar DEFAULT_REGEXP = /(\\s+|^)default(\\s+|$)/;\n\n/**\n * @ngdoc directive\n * @name ngModelOptions\n *\n * @description\n * Allows tuning how model updates are done. Using `ngModelOptions` you can specify a custom list of\n * events that will trigger a model update and/or a debouncing delay so that the actual update only\n * takes place when a timer expires; this timer will be reset after another change takes place.\n *\n * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might\n * be different from the value in the actual model. This means that if you update the model you\n * should also invoke {@link ngModel.NgModelController `$rollbackViewValue`} on the relevant input field in\n * order to make sure it is synchronized with the model and that any debounced action is canceled.\n *\n * The easiest way to reference the control's {@link ngModel.NgModelController `$rollbackViewValue`}\n * method is by making sure the input is placed inside a form that has a `name` attribute. This is\n * important because `form` controllers are published to the related scope under the name in their\n * `name` attribute.\n *\n * Any pending changes will take place immediately when an enclosing form is submitted via the\n * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * `ngModelOptions` has an effect on the element it's declared on and its descendants.\n *\n * @param {Object} ngModelOptions options to apply to the current model. Valid keys are:\n *   - `updateOn`: string specifying which event should the input be bound to. You can set several\n *     events using an space delimited list. There is a special event called `default` that\n *     matches the default events belonging of the control.\n *   - `debounce`: integer value which contains the debounce model update value in milliseconds. A\n *     value of 0 triggers an immediate update. If an object is supplied instead, you can specify a\n *     custom value for each event. For example:\n *     `ng-model-options=\"{ updateOn: 'default blur', debounce: { 'default': 500, 'blur': 0 } }\"`\n *   - `allowInvalid`: boolean value which indicates that the model can be set with values that did\n *     not validate correctly instead of the default behavior of setting the model to undefined.\n *   - `getterSetter`: boolean value which determines whether or not to treat functions bound to\n       `ngModel` as getters/setters.\n *   - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for\n *     `<input type=\"date\">`, `<input type=\"time\">`, ... . It understands UTC/GMT and the\n *     continental US time zone abbreviations, but for general use, use a time zone offset, for\n *     example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *     If not specified, the timezone of the browser will be used.\n *\n * @example\n\n  The following example shows how to override immediate updates. Changes on the inputs within the\n  form will update the model only when the control loses focus (blur event). If `escape` key is\n  pressed while the input field is focused, the value is reset to the value in the current model.\n\n  <example name=\"ngModelOptions-directive-blur\" module=\"optionsExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          <label>Name:\n            <input type=\"text\" name=\"userName\"\n                   ng-model=\"user.name\"\n                   ng-model-options=\"{ updateOn: 'blur' }\"\n                   ng-keyup=\"cancel($event)\" />\n          </label><br />\n          <label>Other data:\n            <input type=\"text\" ng-model=\"user.data\" />\n          </label><br />\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n        <pre>user.data = <span ng-bind=\"user.data\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.user = { name: 'John', data: '' };\n\n          $scope.cancel = function(e) {\n            if (e.keyCode === 27) {\n              $scope.userForm.userName.$rollbackViewValue();\n            }\n          };\n        }]);\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var model = element(by.binding('user.name'));\n      var input = element(by.model('user.name'));\n      var other = element(by.model('user.data'));\n\n      it('should allow custom events', function() {\n        input.sendKeys(' Doe');\n        input.click();\n        expect(model.getText()).toEqual('John');\n        other.click();\n        expect(model.getText()).toEqual('John Doe');\n      });\n\n      it('should $rollbackViewValue when model changes', function() {\n        input.sendKeys(' Doe');\n        expect(input.getAttribute('value')).toEqual('John Doe');\n        input.sendKeys(protractor.Key.ESCAPE);\n        expect(input.getAttribute('value')).toEqual('John');\n        other.click();\n        expect(model.getText()).toEqual('John');\n      });\n    </file>\n  </example>\n\n  This one shows how to debounce model changes. Model will be updated only 1 sec after last change.\n  If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty.\n\n  <example name=\"ngModelOptions-directive-debounce\" module=\"optionsExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          <label>Name:\n            <input type=\"text\" name=\"userName\"\n                   ng-model=\"user.name\"\n                   ng-model-options=\"{ debounce: 1000 }\" />\n          </label>\n          <button ng-click=\"userForm.userName.$rollbackViewValue(); user.name=''\">Clear</button>\n          <br />\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.user = { name: 'Igor' };\n        }]);\n    </file>\n  </example>\n\n  This one shows how to bind to getter/setters:\n\n  <example name=\"ngModelOptions-directive-getter-setter\" module=\"getterSetterExample\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form name=\"userForm\">\n          <label>Name:\n            <input type=\"text\" name=\"userName\"\n                   ng-model=\"user.name\"\n                   ng-model-options=\"{ getterSetter: true }\" />\n          </label>\n        </form>\n        <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n      </div>\n    </file>\n    <file name=\"app.js\">\n      angular.module('getterSetterExample', [])\n        .controller('ExampleController', ['$scope', function($scope) {\n          var _name = 'Brian';\n          $scope.user = {\n            name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n            }\n          };\n        }]);\n    </file>\n  </example>\n */\nvar ngModelOptionsDirective = function() {\n  return {\n    restrict: 'A',\n    controller: ['$scope', '$attrs', function NgModelOptionsController($scope, $attrs) {\n      var that = this;\n      this.$options = copy($scope.$eval($attrs.ngModelOptions));\n      // Allow adding/overriding bound events\n      if (isDefined(this.$options.updateOn)) {\n        this.$options.updateOnDefault = false;\n        // extract \"default\" pseudo-event from list of events that can trigger a model update\n        this.$options.updateOn = trim(this.$options.updateOn.replace(DEFAULT_REGEXP, function() {\n          that.$options.updateOnDefault = true;\n          return ' ';\n        }));\n      } else {\n        this.$options.updateOnDefault = true;\n      }\n    }]\n  };\n};\n\n\n\n// helper methods\nfunction addSetValidityMethod(context) {\n  var ctrl = context.ctrl,\n      $element = context.$element,\n      classCache = {},\n      set = context.set,\n      unset = context.unset,\n      $animate = context.$animate;\n\n  classCache[INVALID_CLASS] = !(classCache[VALID_CLASS] = $element.hasClass(VALID_CLASS));\n\n  ctrl.$setValidity = setValidity;\n\n  function setValidity(validationErrorKey, state, controller) {\n    if (isUndefined(state)) {\n      createAndSet('$pending', validationErrorKey, controller);\n    } else {\n      unsetAndCleanup('$pending', validationErrorKey, controller);\n    }\n    if (!isBoolean(state)) {\n      unset(ctrl.$error, validationErrorKey, controller);\n      unset(ctrl.$$success, validationErrorKey, controller);\n    } else {\n      if (state) {\n        unset(ctrl.$error, validationErrorKey, controller);\n        set(ctrl.$$success, validationErrorKey, controller);\n      } else {\n        set(ctrl.$error, validationErrorKey, controller);\n        unset(ctrl.$$success, validationErrorKey, controller);\n      }\n    }\n    if (ctrl.$pending) {\n      cachedToggleClass(PENDING_CLASS, true);\n      ctrl.$valid = ctrl.$invalid = undefined;\n      toggleValidationCss('', null);\n    } else {\n      cachedToggleClass(PENDING_CLASS, false);\n      ctrl.$valid = isObjectEmpty(ctrl.$error);\n      ctrl.$invalid = !ctrl.$valid;\n      toggleValidationCss('', ctrl.$valid);\n    }\n\n    // re-read the state as the set/unset methods could have\n    // combined state in ctrl.$error[validationError] (used for forms),\n    // where setting/unsetting only increments/decrements the value,\n    // and does not replace it.\n    var combinedState;\n    if (ctrl.$pending && ctrl.$pending[validationErrorKey]) {\n      combinedState = undefined;\n    } else if (ctrl.$error[validationErrorKey]) {\n      combinedState = false;\n    } else if (ctrl.$$success[validationErrorKey]) {\n      combinedState = true;\n    } else {\n      combinedState = null;\n    }\n\n    toggleValidationCss(validationErrorKey, combinedState);\n    ctrl.$$parentForm.$setValidity(validationErrorKey, combinedState, ctrl);\n  }\n\n  function createAndSet(name, value, controller) {\n    if (!ctrl[name]) {\n      ctrl[name] = {};\n    }\n    set(ctrl[name], value, controller);\n  }\n\n  function unsetAndCleanup(name, value, controller) {\n    if (ctrl[name]) {\n      unset(ctrl[name], value, controller);\n    }\n    if (isObjectEmpty(ctrl[name])) {\n      ctrl[name] = undefined;\n    }\n  }\n\n  function cachedToggleClass(className, switchValue) {\n    if (switchValue && !classCache[className]) {\n      $animate.addClass($element, className);\n      classCache[className] = true;\n    } else if (!switchValue && classCache[className]) {\n      $animate.removeClass($element, className);\n      classCache[className] = false;\n    }\n  }\n\n  function toggleValidationCss(validationErrorKey, isValid) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n\n    cachedToggleClass(VALID_CLASS + validationErrorKey, isValid === true);\n    cachedToggleClass(INVALID_CLASS + validationErrorKey, isValid === false);\n  }\n}\n\nfunction isObjectEmpty(obj) {\n  if (obj) {\n    for (var prop in obj) {\n      if (obj.hasOwnProperty(prop)) {\n        return false;\n      }\n    }\n  }\n  return true;\n}\n\n/**\n * @ngdoc directive\n * @name ngNonBindable\n * @restrict AC\n * @priority 1000\n *\n * @description\n * The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current\n * DOM element. This is useful if the element contains what appears to be Angular directives and\n * bindings but which should be ignored by Angular. This could be the case if you have a site that\n * displays snippets of code, for instance.\n *\n * @element ANY\n *\n * @example\n * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,\n * but the one wrapped in `ngNonBindable` is left alone.\n *\n * @example\n    <example name=\"ng-non-bindable\">\n      <file name=\"index.html\">\n        <div>Normal: {{1 + 2}}</div>\n        <div ng-non-bindable>Ignored: {{1 + 2}}</div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-non-bindable', function() {\n         expect(element(by.binding('1 + 2')).getText()).toContain('3');\n         expect(element.all(by.css('div')).last().getText()).toMatch(/1 \\+ 2/);\n       });\n      </file>\n    </example>\n */\nvar ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });\n\n/* exported ngOptionsDirective */\n\n/* global jqLiteRemove */\n\nvar ngOptionsMinErr = minErr('ngOptions');\n\n/**\n * @ngdoc directive\n * @name ngOptions\n * @restrict A\n *\n * @description\n *\n * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`\n * elements for the `<select>` element using the array or object obtained by evaluating the\n * `ngOptions` comprehension expression.\n *\n * In many cases, {@link ng.directive:ngRepeat ngRepeat} can be used on `<option>` elements\n * instead of `ngOptions` to achieve a similar result.\n * However, `ngOptions` provides some benefits such as reducing memory and\n * increasing speed by not creating a new scope for each repeated instance, as well as providing\n * more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression. `ngOptions` should be used when the `<select>` model needs to be bound\n *  to a non-string value. This is because an option element can only be bound to string values at\n * present.\n *\n * When an item in the `<select>` menu is selected, the array element or object property\n * represented by the selected option will be bound to the model identified by the `ngModel`\n * directive.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding the select to a model that is an object or a collection.\n *\n * One issue occurs if you want to preselect an option. For example, if you set\n * the model to an object that is equal to an object in your collection, `ngOptions` won't be able to set the selection,\n * because the objects are not identical. So by default, you should always reference the item in your collection\n * for preselections, e.g.: `$scope.selected = $scope.collection[3]`.\n *\n * Another solution is to use a `track by` clause, because then `ngOptions` will track the identity\n * of the item not by reference, but by the result of the `track by` expression. For example, if your\n * collection items have an id property, you would `track by item.id`.\n *\n * A different issue with objects or collections is that ngModel won't detect if an object property or\n * a collection item changes. For that reason, `ngOptions` additionally watches the model using\n * `$watchCollection`, when the expression contains a `track by` clause or the the select has the `multiple` attribute.\n * This allows ngOptions to trigger a re-rendering of the options even if the actual object/collection\n * has not changed identity, but only a property on the object or an item in the collection changes.\n *\n * Note that `$watchCollection` does a shallow comparison of the properties of the object (or the items in the collection\n * if the model is an array). This means that changing a property deeper than the first level inside the\n * object/collection will not trigger a re-rendering.\n *\n * ## `select` **`as`**\n *\n * Using `select` **`as`** will bind the result of the `select` expression to the model, but\n * the value of the `<select>` and `<option>` html elements will be either the index (for array data sources)\n * or property name (for object data sources) of the value within the collection. If a **`track by`** expression\n * is used, the result of that expression will be set as the value of the `option` and `select` elements.\n *\n *\n * ### `select` **`as`** and **`track by`**\n *\n * <div class=\"alert alert-warning\">\n * Be careful when using `select` **`as`** and **`track by`** in the same expression.\n * </div>\n *\n * Given this array of items on the $scope:\n *\n * ```js\n * $scope.items = [{\n *   id: 1,\n *   label: 'aLabel',\n *   subItem: { name: 'aSubItem' }\n * }, {\n *   id: 2,\n *   label: 'bLabel',\n *   subItem: { name: 'bSubItem' }\n * }];\n * ```\n *\n * This will work:\n *\n * ```html\n * <select ng-options=\"item as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0];\n * ```\n *\n * but this will not work:\n *\n * ```html\n * <select ng-options=\"item.subItem as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0].subItem;\n * ```\n *\n * In both examples, the **`track by`** expression is applied successfully to each `item` in the\n * `items` array. Because the selected option has been set programmatically in the controller, the\n * **`track by`** expression is also applied to the `ngModel` value. In the first example, the\n * `ngModel` value is `items[0]` and the **`track by`** expression evaluates to `items[0].id` with\n * no issue. In the second example, the `ngModel` value is `items[0].subItem` and the **`track by`**\n * expression evaluates to `items[0].subItem.id` (which is undefined). As a result, the model value\n * is not matched against any `<option>` and the `<select>` appears as having no selected value.\n *\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required The control is considered valid only if value is entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {comprehension_expression=} ngOptions in one of the following forms:\n *\n *   * for array data sources:\n *     * `label` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`for`** `value` **`in`** `array` | orderBy:`orderexpr` **`track by`** `trackexpr`\n *        (for including a filter with `track by`)\n *   * for object data sources:\n *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `label` **`disable when`** `disable` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`group by`** `group`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`disable when`** `disable`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *\n * Where:\n *\n *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.\n *   * `value`: local variable which will refer to each item in the `array` or each property value\n *      of `object` during iteration.\n *   * `key`: local variable which will refer to a property name in `object` during iteration.\n *   * `label`: The result of this expression will be the label for `<option>` element. The\n *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).\n *   * `select`: The result of this expression will be bound to the model of the parent `<select>`\n *      element. If not specified, `select` expression will default to `value`.\n *   * `group`: The result of this expression will be used to group options using the `<optgroup>`\n *      DOM element.\n *   * `disable`: The result of this expression will be used to disable the rendered `<option>`\n *      element. Return `true` to disable.\n *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be\n *      used to identify the objects in the array. The `trackexpr` will most likely refer to the\n *     `value` variable (e.g. `value.propertyName`). With this the selection is preserved\n *      even when the options are recreated (e.g. reloaded from the server).\n *\n * @example\n    <example module=\"selectExample\" name=\"select\">\n      <file name=\"index.html\">\n        <script>\n        angular.module('selectExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.colors = [\n              {name:'black', shade:'dark'},\n              {name:'white', shade:'light', notAnOption: true},\n              {name:'red', shade:'dark'},\n              {name:'blue', shade:'dark', notAnOption: true},\n              {name:'yellow', shade:'light', notAnOption: false}\n            ];\n            $scope.myColor = $scope.colors[2]; // red\n          }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <ul>\n            <li ng-repeat=\"color in colors\">\n              <label>Name: <input ng-model=\"color.name\"></label>\n              <label><input type=\"checkbox\" ng-model=\"color.notAnOption\"> Disabled?</label>\n              <button ng-click=\"colors.splice($index, 1)\" aria-label=\"Remove\">X</button>\n            </li>\n            <li>\n              <button ng-click=\"colors.push({})\">add</button>\n            </li>\n          </ul>\n          <hr/>\n          <label>Color (null not allowed):\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\"></select>\n          </label><br/>\n          <label>Color (null allowed):\n          <span  class=\"nullable\">\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\">\n              <option value=\"\">-- choose color --</option>\n            </select>\n          </span></label><br/>\n\n          <label>Color grouped by shade:\n            <select ng-model=\"myColor\" ng-options=\"color.name group by color.shade for color in colors\">\n            </select>\n          </label><br/>\n\n          <label>Color grouped by shade, with some disabled:\n            <select ng-model=\"myColor\"\n                  ng-options=\"color.name group by color.shade disable when color.notAnOption for color in colors\">\n            </select>\n          </label><br/>\n\n\n\n          Select <button ng-click=\"myColor = { name:'not in list', shade: 'other' }\">bogus</button>.\n          <br/>\n          <hr/>\n          Currently selected: {{ {selected_color:myColor} }}\n          <div style=\"border:solid 1px black; height:20px\"\n               ng-style=\"{'background-color':myColor.name}\">\n          </div>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n         it('should check ng-options', function() {\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');\n           element.all(by.model('myColor')).first().click();\n           element.all(by.css('select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');\n           element(by.css('.nullable select[ng-model=\"myColor\"]')).click();\n           element.all(by.css('.nullable select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');\n         });\n      </file>\n    </example>\n */\n\n/* eslint-disable max-len */\n//                     //00001111111111000000000002222222222000000000000000000000333333333300000000000000000000000004444444444400000000000005555555555555000000000666666666666600000007777777777777000000000000000888888888800000000000000000009999999999\nvar NG_OPTIONS_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+group\\s+by\\s+([\\s\\S]+?))?(?:\\s+disable\\s+when\\s+([\\s\\S]+?))?\\s+for\\s+(?:([$\\w][$\\w]*)|(?:\\(\\s*([$\\w][$\\w]*)\\s*,\\s*([$\\w][$\\w]*)\\s*\\)))\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?$/;\n                        // 1: value expression (valueFn)\n                        // 2: label expression (displayFn)\n                        // 3: group by expression (groupByFn)\n                        // 4: disable when expression (disableWhenFn)\n                        // 5: array item variable name\n                        // 6: object item key variable name\n                        // 7: object item value variable name\n                        // 8: collection expression\n                        // 9: track by expression\n/* eslint-enable */\n\n\nvar ngOptionsDirective = ['$compile', '$document', '$parse', function($compile, $document, $parse) {\n\n  function parseOptionsExpression(optionsExp, selectElement, scope) {\n\n    var match = optionsExp.match(NG_OPTIONS_REGEXP);\n    if (!(match)) {\n      throw ngOptionsMinErr('iexp',\n        'Expected expression in form of ' +\n        '\\'_select_ (as _label_)? for (_key_,)?_value_ in _collection_\\'' +\n        ' but got \\'{0}\\'. Element: {1}',\n        optionsExp, startingTag(selectElement));\n    }\n\n    // Extract the parts from the ngOptions expression\n\n    // The variable name for the value of the item in the collection\n    var valueName = match[5] || match[7];\n    // The variable name for the key of the item in the collection\n    var keyName = match[6];\n\n    // An expression that generates the viewValue for an option if there is a label expression\n    var selectAs = / as /.test(match[0]) && match[1];\n    // An expression that is used to track the id of each object in the options collection\n    var trackBy = match[9];\n    // An expression that generates the viewValue for an option if there is no label expression\n    var valueFn = $parse(match[2] ? match[1] : valueName);\n    var selectAsFn = selectAs && $parse(selectAs);\n    var viewValueFn = selectAsFn || valueFn;\n    var trackByFn = trackBy && $parse(trackBy);\n\n    // Get the value by which we are going to track the option\n    // if we have a trackFn then use that (passing scope and locals)\n    // otherwise just hash the given viewValue\n    var getTrackByValueFn = trackBy ?\n                              function(value, locals) { return trackByFn(scope, locals); } :\n                              function getHashOfValue(value) { return hashKey(value); };\n    var getTrackByValue = function(value, key) {\n      return getTrackByValueFn(value, getLocals(value, key));\n    };\n\n    var displayFn = $parse(match[2] || match[1]);\n    var groupByFn = $parse(match[3] || '');\n    var disableWhenFn = $parse(match[4] || '');\n    var valuesFn = $parse(match[8]);\n\n    var locals = {};\n    var getLocals = keyName ? function(value, key) {\n      locals[keyName] = key;\n      locals[valueName] = value;\n      return locals;\n    } : function(value) {\n      locals[valueName] = value;\n      return locals;\n    };\n\n\n    function Option(selectValue, viewValue, label, group, disabled) {\n      this.selectValue = selectValue;\n      this.viewValue = viewValue;\n      this.label = label;\n      this.group = group;\n      this.disabled = disabled;\n    }\n\n    function getOptionValuesKeys(optionValues) {\n      var optionValuesKeys;\n\n      if (!keyName && isArrayLike(optionValues)) {\n        optionValuesKeys = optionValues;\n      } else {\n        // if object, extract keys, in enumeration order, unsorted\n        optionValuesKeys = [];\n        for (var itemKey in optionValues) {\n          if (optionValues.hasOwnProperty(itemKey) && itemKey.charAt(0) !== '$') {\n            optionValuesKeys.push(itemKey);\n          }\n        }\n      }\n      return optionValuesKeys;\n    }\n\n    return {\n      trackBy: trackBy,\n      getTrackByValue: getTrackByValue,\n      getWatchables: $parse(valuesFn, function(optionValues) {\n        // Create a collection of things that we would like to watch (watchedArray)\n        // so that they can all be watched using a single $watchCollection\n        // that only runs the handler once if anything changes\n        var watchedArray = [];\n        optionValues = optionValues || [];\n\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n\n          var locals = getLocals(value, key);\n          var selectValue = getTrackByValueFn(value, locals);\n          watchedArray.push(selectValue);\n\n          // Only need to watch the displayFn if there is a specific label expression\n          if (match[2] || match[1]) {\n            var label = displayFn(scope, locals);\n            watchedArray.push(label);\n          }\n\n          // Only need to watch the disableWhenFn if there is a specific disable expression\n          if (match[4]) {\n            var disableWhen = disableWhenFn(scope, locals);\n            watchedArray.push(disableWhen);\n          }\n        }\n        return watchedArray;\n      }),\n\n      getOptions: function() {\n\n        var optionItems = [];\n        var selectValueMap = {};\n\n        // The option values were already computed in the `getWatchables` fn,\n        // which must have been called to trigger `getOptions`\n        var optionValues = valuesFn(scope) || [];\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n          var locals = getLocals(value, key);\n          var viewValue = viewValueFn(scope, locals);\n          var selectValue = getTrackByValueFn(viewValue, locals);\n          var label = displayFn(scope, locals);\n          var group = groupByFn(scope, locals);\n          var disabled = disableWhenFn(scope, locals);\n          var optionItem = new Option(selectValue, viewValue, label, group, disabled);\n\n          optionItems.push(optionItem);\n          selectValueMap[selectValue] = optionItem;\n        }\n\n        return {\n          items: optionItems,\n          selectValueMap: selectValueMap,\n          getOptionFromViewValue: function(value) {\n            return selectValueMap[getTrackByValue(value)];\n          },\n          getViewValueFromOption: function(option) {\n            // If the viewValue could be an object that may be mutated by the application,\n            // we need to make a copy and not return the reference to the value on the option.\n            return trackBy ? copy(option.viewValue) : option.viewValue;\n          }\n        };\n      }\n    };\n  }\n\n\n  // we can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  var optionTemplate = window.document.createElement('option'),\n      optGroupTemplate = window.document.createElement('optgroup');\n\n    function ngOptionsPostLink(scope, selectElement, attr, ctrls) {\n\n      var selectCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1];\n      var multiple = attr.multiple;\n\n      // The emptyOption allows the application developer to provide their own custom \"empty\"\n      // option when the viewValue does not match any of the option values.\n      var emptyOption;\n      for (var i = 0, children = selectElement.children(), ii = children.length; i < ii; i++) {\n        if (children[i].value === '') {\n          emptyOption = children.eq(i);\n          break;\n        }\n      }\n\n      var providedEmptyOption = !!emptyOption;\n      var emptyOptionRendered = false;\n\n      var unknownOption = jqLite(optionTemplate.cloneNode(false));\n      unknownOption.val('?');\n\n      var options;\n      var ngOptions = parseOptionsExpression(attr.ngOptions, selectElement, scope);\n      // This stores the newly created options before they are appended to the select.\n      // Since the contents are removed from the fragment when it is appended,\n      // we only need to create it once.\n      var listFragment = $document[0].createDocumentFragment();\n\n      var renderEmptyOption = function() {\n        if (!providedEmptyOption) {\n          selectElement.prepend(emptyOption);\n        }\n        selectElement.val('');\n        if (emptyOptionRendered) {\n          emptyOption.prop('selected', true); // needed for IE\n          emptyOption.attr('selected', true);\n        }\n      };\n\n      var removeEmptyOption = function() {\n        if (!providedEmptyOption) {\n          emptyOption.remove();\n        } else if (emptyOptionRendered) {\n          emptyOption.removeAttr('selected');\n        }\n      };\n\n      var renderUnknownOption = function() {\n        selectElement.prepend(unknownOption);\n        selectElement.val('?');\n        unknownOption.prop('selected', true); // needed for IE\n        unknownOption.attr('selected', true);\n      };\n\n      var removeUnknownOption = function() {\n        unknownOption.remove();\n      };\n\n      // Update the controller methods for multiple selectable options\n      if (!multiple) {\n\n        selectCtrl.writeValue = function writeNgOptionsValue(value) {\n          var selectedOption = options.selectValueMap[selectElement.val()];\n          var option = options.getOptionFromViewValue(value);\n\n          // Make sure to remove the selected attribute from the previously selected option\n          // Otherwise, screen readers might get confused\n          if (selectedOption) selectedOption.element.removeAttribute('selected');\n\n          if (option) {\n            // Don't update the option when it is already selected.\n            // For example, the browser will select the first option by default. In that case,\n            // most properties are set automatically - except the `selected` attribute, which we\n            // set always\n\n            if (selectElement[0].value !== option.selectValue) {\n              removeUnknownOption();\n              removeEmptyOption();\n\n              selectElement[0].value = option.selectValue;\n              option.element.selected = true;\n            }\n\n            option.element.setAttribute('selected', 'selected');\n          } else {\n            if (value === null || providedEmptyOption) {\n              removeUnknownOption();\n              renderEmptyOption();\n            } else {\n              removeEmptyOption();\n              renderUnknownOption();\n            }\n          }\n        };\n\n        selectCtrl.readValue = function readNgOptionsValue() {\n\n          var selectedOption = options.selectValueMap[selectElement.val()];\n\n          if (selectedOption && !selectedOption.disabled) {\n            removeEmptyOption();\n            removeUnknownOption();\n            return options.getViewValueFromOption(selectedOption);\n          }\n          return null;\n        };\n\n        // If we are using `track by` then we must watch the tracked value on the model\n        // since ngModel only watches for object identity change\n        // FIXME: When a user selects an option, this watch will fire needlessly\n        if (ngOptions.trackBy) {\n          scope.$watch(\n            function() { return ngOptions.getTrackByValue(ngModelCtrl.$viewValue); },\n            function() { ngModelCtrl.$render(); }\n          );\n        }\n\n      } else {\n\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n\n\n        selectCtrl.writeValue = function writeNgOptionsMultiple(value) {\n          options.items.forEach(function(option) {\n            option.element.selected = false;\n          });\n\n          if (value) {\n            value.forEach(function(item) {\n              var option = options.getOptionFromViewValue(item);\n              if (option) option.element.selected = true;\n            });\n          }\n        };\n\n\n        selectCtrl.readValue = function readNgOptionsMultiple() {\n          var selectedValues = selectElement.val() || [],\n              selections = [];\n\n          forEach(selectedValues, function(value) {\n            var option = options.selectValueMap[value];\n            if (option && !option.disabled) selections.push(options.getViewValueFromOption(option));\n          });\n\n          return selections;\n        };\n\n        // If we are using `track by` then we must watch these tracked values on the model\n        // since ngModel only watches for object identity change\n        if (ngOptions.trackBy) {\n\n          scope.$watchCollection(function() {\n            if (isArray(ngModelCtrl.$viewValue)) {\n              return ngModelCtrl.$viewValue.map(function(value) {\n                return ngOptions.getTrackByValue(value);\n              });\n            }\n          }, function() {\n            ngModelCtrl.$render();\n          });\n\n        }\n      }\n\n\n      if (providedEmptyOption) {\n\n        // we need to remove it before calling selectElement.empty() because otherwise IE will\n        // remove the label from the element. wtf?\n        emptyOption.remove();\n\n        // compile the element since there might be bindings in it\n        $compile(emptyOption)(scope);\n\n        if (emptyOption[0].nodeType === NODE_TYPE_COMMENT) {\n          // This means the empty option has currently no actual DOM node, probably because\n          // it has been modified by a transclusion directive.\n\n          emptyOptionRendered = false;\n\n          // Redefine the registerOption function, which will catch\n          // options that are added by ngIf etc. (rendering of the node is async because of\n          // lazy transclusion)\n          selectCtrl.registerOption = function(optionScope, optionEl) {\n            if (optionEl.val() === '') {\n              emptyOptionRendered = true;\n              emptyOption = optionEl;\n              emptyOption.removeClass('ng-scope');\n              // This ensures the new empty option is selected if previously no option was selected\n              ngModelCtrl.$render();\n\n              optionEl.on('$destroy', function() {\n                emptyOption = undefined;\n                emptyOptionRendered = false;\n              });\n            }\n          };\n\n        } else {\n          emptyOption.removeClass('ng-scope');\n          emptyOptionRendered = true;\n        }\n\n      } else {\n        emptyOption = jqLite(optionTemplate.cloneNode(false));\n      }\n\n      selectElement.empty();\n\n      // We need to do this here to ensure that the options object is defined\n      // when we first hit it in writeNgOptionsValue\n      updateOptions();\n\n      // We will re-render the option elements if the option values or labels change\n      scope.$watchCollection(ngOptions.getWatchables, updateOptions);\n\n      // ------------------------------------------------------------------ //\n\n      function addOptionElement(option, parent) {\n        var optionElement = optionTemplate.cloneNode(false);\n        parent.appendChild(optionElement);\n        updateOptionElement(option, optionElement);\n      }\n\n\n      function updateOptionElement(option, element) {\n        option.element = element;\n        element.disabled = option.disabled;\n        // NOTE: The label must be set before the value, otherwise IE10/11/EDGE create unresponsive\n        // selects in certain circumstances when multiple selects are next to each other and display\n        // the option list in listbox style, i.e. the select is [multiple], or specifies a [size].\n        // See https://github.com/angular/angular.js/issues/11314 for more info.\n        // This is unfortunately untestable with unit / e2e tests\n        if (option.label !== element.label) {\n          element.label = option.label;\n          element.textContent = option.label;\n        }\n        element.value = option.selectValue;\n      }\n\n      function updateOptions() {\n        var previousValue = options && selectCtrl.readValue();\n\n        // We must remove all current options, but cannot simply set innerHTML = null\n        // since the providedEmptyOption might have an ngIf on it that inserts comments which we\n        // must preserve.\n        // Instead, iterate over the current option elements and remove them or their optgroup\n        // parents\n        if (options) {\n\n          for (var i = options.items.length - 1; i >= 0; i--) {\n            var option = options.items[i];\n            if (isDefined(option.group)) {\n              jqLiteRemove(option.element.parentNode);\n            } else {\n              jqLiteRemove(option.element);\n            }\n          }\n        }\n\n        options = ngOptions.getOptions();\n\n        var groupElementMap = {};\n\n        // Ensure that the empty option is always there if it was explicitly provided\n        if (providedEmptyOption) {\n          selectElement.prepend(emptyOption);\n        }\n\n        options.items.forEach(function addOption(option) {\n          var groupElement;\n\n          if (isDefined(option.group)) {\n\n            // This option is to live in a group\n            // See if we have already created this group\n            groupElement = groupElementMap[option.group];\n\n            if (!groupElement) {\n\n              groupElement = optGroupTemplate.cloneNode(false);\n              listFragment.appendChild(groupElement);\n\n              // Update the label on the group element\n              // \"null\" is special cased because of Safari\n              groupElement.label = option.group === null ? 'null' : option.group;\n\n              // Store it for use later\n              groupElementMap[option.group] = groupElement;\n            }\n\n            addOptionElement(option, groupElement);\n\n          } else {\n\n            // This option is not in a group\n            addOptionElement(option, listFragment);\n          }\n        });\n\n        selectElement[0].appendChild(listFragment);\n\n        ngModelCtrl.$render();\n\n        // Check to see if the value has changed due to the update to the options\n        if (!ngModelCtrl.$isEmpty(previousValue)) {\n          var nextValue = selectCtrl.readValue();\n          var isNotPrimitive = ngOptions.trackBy || multiple;\n          if (isNotPrimitive ? !equals(previousValue, nextValue) : previousValue !== nextValue) {\n            ngModelCtrl.$setViewValue(nextValue);\n            ngModelCtrl.$render();\n          }\n        }\n\n      }\n  }\n\n  return {\n    restrict: 'A',\n    terminal: true,\n    require: ['select', 'ngModel'],\n    link: {\n      pre: function ngOptionsPreLink(scope, selectElement, attr, ctrls) {\n        // Deactivate the SelectController.register method to prevent\n        // option directives from accidentally registering themselves\n        // (and unwanted $destroy handlers etc.)\n        ctrls[0].registerOption = noop;\n      },\n      post: ngOptionsPostLink\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngPluralize\n * @restrict EA\n *\n * @description\n * `ngPluralize` is a directive that displays messages according to en-US localization rules.\n * These rules are bundled with angular.js, but can be overridden\n * (see {@link guide/i18n Angular i18n} dev guide). You configure ngPluralize directive\n * by specifying the mappings between\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * and the strings to be displayed.\n *\n * # Plural categories and explicit number rules\n * There are two\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * in Angular's default en-US locale: \"one\" and \"other\".\n *\n * While a plural category may match many numbers (for example, in en-US locale, \"other\" can match\n * any number that is not 1), an explicit number rule can only match one number. For example, the\n * explicit number rule for \"3\" matches the number 3. There are examples of plural categories\n * and explicit number rules throughout the rest of this documentation.\n *\n * # Configuring ngPluralize\n * You configure ngPluralize by providing 2 attributes: `count` and `when`.\n * You can also provide an optional attribute, `offset`.\n *\n * The value of the `count` attribute can be either a string or an {@link guide/expression\n * Angular expression}; these are evaluated on the current scope for its bound value.\n *\n * The `when` attribute specifies the mappings between plural categories and the actual\n * string to be displayed. The value of the attribute should be a JSON object.\n *\n * The following example shows how to configure ngPluralize:\n *\n * ```html\n * <ng-pluralize count=\"personCount\"\n                 when=\"{'0': 'Nobody is viewing.',\n *                      'one': '1 person is viewing.',\n *                      'other': '{} people are viewing.'}\">\n * </ng-pluralize>\n *```\n *\n * In the example, `\"0: Nobody is viewing.\"` is an explicit number rule. If you did not\n * specify this rule, 0 would be matched to the \"other\" category and \"0 people are viewing\"\n * would be shown instead of \"Nobody is viewing\". You can specify an explicit number rule for\n * other numbers, for example 12, so that instead of showing \"12 people are viewing\", you can\n * show \"a dozen people are viewing\".\n *\n * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted\n * into pluralized strings. In the previous example, Angular will replace `{}` with\n * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder\n * for <span ng-non-bindable>{{numberExpression}}</span>.\n *\n * If no rule is defined for a category, then an empty string is displayed and a warning is generated.\n * Note that some locales define more categories than `one` and `other`. For example, fr-fr defines `few` and `many`.\n *\n * # Configuring ngPluralize with offset\n * The `offset` attribute allows further customization of pluralized text, which can result in\n * a better user experience. For example, instead of the message \"4 people are viewing this document\",\n * you might display \"John, Kate and 2 others are viewing this document\".\n * The offset attribute allows you to offset a number by any desired value.\n * Let's take a look at an example:\n *\n * ```html\n * <ng-pluralize count=\"personCount\" offset=2\n *               when=\"{'0': 'Nobody is viewing.',\n *                      '1': '{{person1}} is viewing.',\n *                      '2': '{{person1}} and {{person2}} are viewing.',\n *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',\n *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n * </ng-pluralize>\n * ```\n *\n * Notice that we are still using two plural categories(one, other), but we added\n * three explicit number rules 0, 1 and 2.\n * When one person, perhaps John, views the document, \"John is viewing\" will be shown.\n * When three people view the document, no explicit number rule is found, so\n * an offset of 2 is taken off 3, and Angular uses 1 to decide the plural category.\n * In this case, plural category 'one' is matched and \"John, Mary and one other person are viewing\"\n * is shown.\n *\n * Note that when you specify offsets, you must provide explicit number rules for\n * numbers from 0 up to and including the offset. If you use an offset of 3, for example,\n * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for\n * plural categories \"one\" and \"other\".\n *\n * @param {string|expression} count The variable to be bound to.\n * @param {string} when The mapping between plural category to its corresponding strings.\n * @param {number=} offset Offset to deduct from the total number.\n *\n * @example\n    <example module=\"pluralizeExample\" name=\"ng-pluralize\">\n      <file name=\"index.html\">\n        <script>\n          angular.module('pluralizeExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.person1 = 'Igor';\n              $scope.person2 = 'Misko';\n              $scope.personCount = 1;\n            }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <label>Person 1:<input type=\"text\" ng-model=\"person1\" value=\"Igor\" /></label><br/>\n          <label>Person 2:<input type=\"text\" ng-model=\"person2\" value=\"Misko\" /></label><br/>\n          <label>Number of People:<input type=\"text\" ng-model=\"personCount\" value=\"1\" /></label><br/>\n\n          <!--- Example with simple pluralization rules for en locale --->\n          Without Offset:\n          <ng-pluralize count=\"personCount\"\n                        when=\"{'0': 'Nobody is viewing.',\n                               'one': '1 person is viewing.',\n                               'other': '{} people are viewing.'}\">\n          </ng-pluralize><br>\n\n          <!--- Example with offset --->\n          With Offset(2):\n          <ng-pluralize count=\"personCount\" offset=2\n                        when=\"{'0': 'Nobody is viewing.',\n                               '1': '{{person1}} is viewing.',\n                               '2': '{{person1}} and {{person2}} are viewing.',\n                               'one': '{{person1}}, {{person2}} and one other person are viewing.',\n                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n          </ng-pluralize>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should show correct pluralized string', function() {\n          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var countInput = element(by.model('personCount'));\n\n          expect(withoutOffset.getText()).toEqual('1 person is viewing.');\n          expect(withOffset.getText()).toEqual('Igor is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('0');\n\n          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');\n          expect(withOffset.getText()).toEqual('Nobody is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('2');\n\n          expect(withoutOffset.getText()).toEqual('2 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('3');\n\n          expect(withoutOffset.getText()).toEqual('3 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('4');\n\n          expect(withoutOffset.getText()).toEqual('4 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');\n        });\n        it('should show data-bound names', function() {\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var personCount = element(by.model('personCount'));\n          var person1 = element(by.model('person1'));\n          var person2 = element(by.model('person2'));\n          personCount.clear();\n          personCount.sendKeys('4');\n          person1.clear();\n          person1.sendKeys('Di');\n          person2.clear();\n          person2.sendKeys('Vojta');\n          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');\n        });\n      </file>\n    </example>\n */\nvar ngPluralizeDirective = ['$locale', '$interpolate', '$log', function($locale, $interpolate, $log) {\n  var BRACE = /{}/g,\n      IS_WHEN = /^when(Minus)?(.+)$/;\n\n  return {\n    link: function(scope, element, attr) {\n      var numberExp = attr.count,\n          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs\n          offset = attr.offset || 0,\n          whens = scope.$eval(whenExp) || {},\n          whensExpFns = {},\n          startSymbol = $interpolate.startSymbol(),\n          endSymbol = $interpolate.endSymbol(),\n          braceReplacement = startSymbol + numberExp + '-' + offset + endSymbol,\n          watchRemover = angular.noop,\n          lastCount;\n\n      forEach(attr, function(expression, attributeName) {\n        var tmpMatch = IS_WHEN.exec(attributeName);\n        if (tmpMatch) {\n          var whenKey = (tmpMatch[1] ? '-' : '') + lowercase(tmpMatch[2]);\n          whens[whenKey] = element.attr(attr.$attr[attributeName]);\n        }\n      });\n      forEach(whens, function(expression, key) {\n        whensExpFns[key] = $interpolate(expression.replace(BRACE, braceReplacement));\n\n      });\n\n      scope.$watch(numberExp, function ngPluralizeWatchAction(newVal) {\n        var count = parseFloat(newVal);\n        var countIsNaN = isNumberNaN(count);\n\n        if (!countIsNaN && !(count in whens)) {\n          // If an explicit number rule such as 1, 2, 3... is defined, just use it.\n          // Otherwise, check it against pluralization rules in $locale service.\n          count = $locale.pluralCat(count - offset);\n        }\n\n        // If both `count` and `lastCount` are NaN, we don't need to re-register a watch.\n        // In JS `NaN !== NaN`, so we have to explicitly check.\n        if ((count !== lastCount) && !(countIsNaN && isNumberNaN(lastCount))) {\n          watchRemover();\n          var whenExpFn = whensExpFns[count];\n          if (isUndefined(whenExpFn)) {\n            if (newVal != null) {\n              $log.debug('ngPluralize: no rule defined for \\'' + count + '\\' in ' + whenExp);\n            }\n            watchRemover = noop;\n            updateElementText();\n          } else {\n            watchRemover = scope.$watch(whenExpFn, updateElementText);\n          }\n          lastCount = count;\n        }\n      });\n\n      function updateElementText(newText) {\n        element.text(newText || '');\n      }\n    }\n  };\n}];\n\n/* exported ngRepeatDirective */\n\n/**\n * @ngdoc directive\n * @name ngRepeat\n * @multiElement\n *\n * @description\n * The `ngRepeat` directive instantiates a template once per item from a collection. Each template\n * instance gets its own scope, where the given loop variable is set to the current collection item,\n * and `$index` is set to the item index or key.\n *\n * Special properties are exposed on the local scope of each template instance, including:\n *\n * | Variable  | Type            | Details                                                                     |\n * |-----------|-----------------|-----------------------------------------------------------------------------|\n * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |\n * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |\n * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |\n * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |\n * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |\n * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |\n *\n * <div class=\"alert alert-info\">\n *   Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.\n *   This may be useful when, for instance, nesting ngRepeats.\n * </div>\n *\n *\n * # Iterating over object properties\n *\n * It is possible to get `ngRepeat` to iterate over the properties of an object using the following\n * syntax:\n *\n * ```js\n * <div ng-repeat=\"(key, value) in myObj\"> ... </div>\n * ```\n *\n * However, there are a few limitations compared to array iteration:\n *\n * - The JavaScript specification does not define the order of keys\n *   returned for an object, so Angular relies on the order returned by the browser\n *   when running `for key in myObj`. Browsers generally follow the strategy of providing\n *   keys in the order in which they were defined, although there are exceptions when keys are deleted\n *   and reinstated. See the\n *   [MDN page on `delete` for more info](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete#Cross-browser_notes).\n *\n * - `ngRepeat` will silently *ignore* object keys starting with `$`, because\n *   it's a prefix used by Angular for public (`$`) and private (`$$`) properties.\n *\n * - The built-in filters {@link ng.orderBy orderBy} and {@link ng.filter filter} do not work with\n *   objects, and will throw an error if used with one.\n *\n * If you are hitting any of these limitations, the recommended workaround is to convert your object into an array\n * that is sorted into the order that you prefer before providing it to `ngRepeat`. You could\n * do this with a filter such as [toArrayFilter](http://ngmodules.org/modules/angular-toArrayFilter)\n * or implement a `$watch` on the object yourself.\n *\n *\n * # Tracking and Duplicates\n *\n * `ngRepeat` uses {@link $rootScope.Scope#$watchCollection $watchCollection} to detect changes in\n * the collection. When a change happens, `ngRepeat` then makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * To minimize creation of DOM elements, `ngRepeat` uses a function\n * to \"keep track\" of all items in the collection and their corresponding DOM elements.\n * For example, if an item is added to the collection, `ngRepeat` will know that all other items\n * already have DOM elements, and will not re-render them.\n *\n * The default tracking function (which tracks items by their identity) does not allow\n * duplicate items in arrays. This is because when there are duplicates, it is not possible\n * to maintain a one-to-one mapping between collection items and DOM elements.\n *\n * If you do need to repeat duplicate items, you can substitute the default tracking behavior\n * with your own using the `track by` expression.\n *\n * For example, you may track items by the index of each item in the collection, using the\n * special scope property `$index`:\n * ```html\n *    <div ng-repeat=\"n in [42, 42, 43, 43] track by $index\">\n *      {{n}}\n *    </div>\n * ```\n *\n * You may also use arbitrary expressions in `track by`, including references to custom functions\n * on the scope:\n * ```html\n *    <div ng-repeat=\"n in [42, 42, 43, 43] track by myTrackingFunction(n)\">\n *      {{n}}\n *    </div>\n * ```\n *\n * <div class=\"alert alert-success\">\n * If you are working with objects that have a unique identifier property, you should track\n * by this identifier instead of the object instance. Should you reload your data later, `ngRepeat`\n * will not have to rebuild the DOM elements for items it has already rendered, even if the\n * JavaScript objects in the collection have been substituted for new ones. For large collections,\n * this significantly improves rendering performance. If you don't have a unique identifier,\n * `track by $index` can also provide a performance boost.\n * </div>\n *\n * ```html\n *    <div ng-repeat=\"model in collection track by model.id\">\n *      {{model.name}}\n *    </div>\n * ```\n *\n * <br />\n * <div class=\"alert alert-warning\">\n * Avoid using `track by $index` when the repeated template contains\n * {@link guide/expression#one-time-binding one-time bindings}. In such cases, the `nth` DOM\n * element will always be matched with the `nth` item of the array, so the bindings on that element\n * will not be updated even when the corresponding item changes, essentially causing the view to get\n * out-of-sync with the underlying data.\n * </div>\n *\n * When no `track by` expression is provided, it is equivalent to tracking by the built-in\n * `$id` function, which tracks items by their identity:\n * ```html\n *    <div ng-repeat=\"obj in collection track by $id(obj)\">\n *      {{obj.prop}}\n *    </div>\n * ```\n *\n * <br />\n * <div class=\"alert alert-warning\">\n * **Note:** `track by` must always be the last expression:\n * </div>\n * ```\n *    <div ng-repeat=\"model in collection | orderBy: 'id' as filtered_result track by model.id\">\n *      {{model.name}}\n *    </div>\n * ```\n *\n *\n * # Special repeat start and end points\n * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending\n * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.\n * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)\n * up to and including the ending HTML tag where **ng-repeat-end** is placed.\n *\n * The example below makes use of this feature:\n * ```html\n *   <header ng-repeat-start=\"item in items\">\n *     Header {{ item }}\n *   </header>\n *   <div class=\"body\">\n *     Body {{ item }}\n *   </div>\n *   <footer ng-repeat-end>\n *     Footer {{ item }}\n *   </footer>\n * ```\n *\n * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:\n * ```html\n *   <header>\n *     Header A\n *   </header>\n *   <div class=\"body\">\n *     Body A\n *   </div>\n *   <footer>\n *     Footer A\n *   </footer>\n *   <header>\n *     Header B\n *   </header>\n *   <div class=\"body\">\n *     Body B\n *   </div>\n *   <footer>\n *     Footer B\n *   </footer>\n * ```\n *\n * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such\n * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter} | when a new item is added to the list or when an item is revealed after a filter |\n * | {@link ng.$animate#leave leave} | when an item is removed from the list or when an item is filtered out |\n * | {@link ng.$animate#move move } | when an adjacent item is filtered out causing a reorder or when the item contents are reordered |\n *\n * See the example below for defining CSS animations with ngRepeat.\n *\n * @element ANY\n * @scope\n * @priority 1000\n * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These\n *   formats are currently supported:\n *\n *   * `variable in expression` – where variable is the user defined loop variable and `expression`\n *     is a scope expression giving the collection to enumerate.\n *\n *     For example: `album in artist.albums`.\n *\n *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,\n *     and `expression` is the scope expression giving the collection to enumerate.\n *\n *     For example: `(name, age) in {'adam':10, 'amalie':12}`.\n *\n *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking expression\n *     which can be used to associate the objects in the collection with the DOM elements. If no tracking expression\n *     is specified, ng-repeat associates elements by identity. It is an error to have\n *     more than one tracking expression value resolve to the same key. (This would mean that two distinct objects are\n *     mapped to the same DOM element, which is not possible.)\n *\n *     Note that the tracking expression must come last, after any filters, and the alias expression.\n *\n *     For example: `item in items` is equivalent to `item in items track by $id(item)`. This implies that the DOM elements\n *     will be associated by item identity in the array.\n *\n *     For example: `item in items track by $id(item)`. A built in `$id()` function can be used to assign a unique\n *     `$$hashKey` property to each item in the array. This property is then used as a key to associated DOM elements\n *     with the corresponding item in the array by identity. Moving the same object in array would move the DOM\n *     element in the same way in the DOM.\n *\n *     For example: `item in items track by item.id` is a typical pattern when the items come from the database. In this\n *     case the object identity does not matter. Two objects are considered equivalent as long as their `id`\n *     property is same.\n *\n *     For example: `item in items | filter:searchText track by item.id` is a pattern that might be used to apply a filter\n *     to items in conjunction with a tracking expression.\n *\n *   * `variable in expression as alias_expression` – You can also provide an optional alias expression which will then store the\n *     intermediate results of the repeater after the filters have been applied. Typically this is used to render a special message\n *     when a filter is active on the repeater, but the filtered result set is empty.\n *\n *     For example: `item in items | filter:x as results` will store the fragment of the repeated items as `results`, but only after\n *     the items have been processed through the filter.\n *\n *     Please note that `as [variable name] is not an operator but rather a part of ngRepeat micro-syntax so it can be used only at the end\n *     (and not as operator, inside an expression).\n *\n *     For example: `item in items | filter : x | orderBy : order | limitTo : limit as results` .\n *\n * @example\n * This example uses `ngRepeat` to display a list of people. A filter is used to restrict the displayed\n * results by name or by age. New (entering) and removed (leaving) items are animated.\n  <example module=\"ngRepeat\" name=\"ngRepeat\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-repeat\">\n    <file name=\"index.html\">\n      <div ng-controller=\"repeatController\">\n        I have {{friends.length}} friends. They are:\n        <input type=\"search\" ng-model=\"q\" placeholder=\"filter friends...\" aria-label=\"filter friends\" />\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends | filter:q as results\">\n            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.\n          </li>\n          <li class=\"animate-repeat\" ng-if=\"results.length === 0\">\n            <strong>No results found...</strong>\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {\n        $scope.friends = [\n          {name:'John', age:25, gender:'boy'},\n          {name:'Jessie', age:30, gender:'girl'},\n          {name:'Johanna', age:28, gender:'girl'},\n          {name:'Joy', age:15, gender:'girl'},\n          {name:'Mary', age:28, gender:'girl'},\n          {name:'Peter', age:95, gender:'boy'},\n          {name:'Sebastian', age:50, gender:'boy'},\n          {name:'Erika', age:27, gender:'girl'},\n          {name:'Patrick', age:40, gender:'boy'},\n          {name:'Samantha', age:60, gender:'girl'}\n        ];\n      });\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:30px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:30px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var friends = element.all(by.repeater('friend in friends'));\n\n      it('should render initial data set', function() {\n        expect(friends.count()).toBe(10);\n        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');\n        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');\n        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');\n        expect(element(by.binding('friends.length')).getText())\n            .toMatch(\"I have 10 friends. They are:\");\n      });\n\n       it('should update repeater when filter predicate changes', function() {\n         expect(friends.count()).toBe(10);\n\n         element(by.model('q')).sendKeys('ma');\n\n         expect(friends.count()).toBe(2);\n         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');\n         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');\n       });\n      </file>\n    </example>\n */\nvar ngRepeatDirective = ['$parse', '$animate', '$compile', function($parse, $animate, $compile) {\n  var NG_REMOVED = '$$NG_REMOVED';\n  var ngRepeatMinErr = minErr('ngRepeat');\n\n  var updateScope = function(scope, index, valueIdentifier, value, keyIdentifier, key, arrayLength) {\n    // TODO(perf): generate setters to shave off ~40ms or 1-1.5%\n    scope[valueIdentifier] = value;\n    if (keyIdentifier) scope[keyIdentifier] = key;\n    scope.$index = index;\n    scope.$first = (index === 0);\n    scope.$last = (index === (arrayLength - 1));\n    scope.$middle = !(scope.$first || scope.$last);\n    // eslint-disable-next-line no-bitwise\n    scope.$odd = !(scope.$even = (index & 1) === 0);\n  };\n\n  var getBlockStart = function(block) {\n    return block.clone[0];\n  };\n\n  var getBlockEnd = function(block) {\n    return block.clone[block.clone.length - 1];\n  };\n\n\n  return {\n    restrict: 'A',\n    multiElement: true,\n    transclude: 'element',\n    priority: 1000,\n    terminal: true,\n    $$tlb: true,\n    compile: function ngRepeatCompile($element, $attr) {\n      var expression = $attr.ngRepeat;\n      var ngRepeatEndComment = $compile.$$createComment('end ngRepeat', expression);\n\n      var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+track\\s+by\\s+([\\s\\S]+?))?\\s*$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iexp', 'Expected expression in form of \\'_item_ in _collection_[ track by _id_]\\' but got \\'{0}\\'.',\n            expression);\n      }\n\n      var lhs = match[1];\n      var rhs = match[2];\n      var aliasAs = match[3];\n      var trackByExp = match[4];\n\n      match = lhs.match(/^(?:(\\s*[$\\w]+)|\\(\\s*([$\\w]+)\\s*,\\s*([$\\w]+)\\s*\\))$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iidexp', '\\'_item_\\' in \\'_item_ in _collection_\\' should be an identifier or \\'(_key_, _value_)\\' expression, but got \\'{0}\\'.',\n            lhs);\n      }\n      var valueIdentifier = match[3] || match[1];\n      var keyIdentifier = match[2];\n\n      if (aliasAs && (!/^[$a-zA-Z_][$a-zA-Z0-9_]*$/.test(aliasAs) ||\n          /^(null|undefined|this|\\$index|\\$first|\\$middle|\\$last|\\$even|\\$odd|\\$parent|\\$root|\\$id)$/.test(aliasAs))) {\n        throw ngRepeatMinErr('badident', 'alias \\'{0}\\' is invalid --- must be a valid JS identifier which is not a reserved name.',\n          aliasAs);\n      }\n\n      var trackByExpGetter, trackByIdExpFn, trackByIdArrayFn, trackByIdObjFn;\n      var hashFnLocals = {$id: hashKey};\n\n      if (trackByExp) {\n        trackByExpGetter = $parse(trackByExp);\n      } else {\n        trackByIdArrayFn = function(key, value) {\n          return hashKey(value);\n        };\n        trackByIdObjFn = function(key) {\n          return key;\n        };\n      }\n\n      return function ngRepeatLink($scope, $element, $attr, ctrl, $transclude) {\n\n        if (trackByExpGetter) {\n          trackByIdExpFn = function(key, value, index) {\n            // assign key, value, and $index to the locals so that they can be used in hash functions\n            if (keyIdentifier) hashFnLocals[keyIdentifier] = key;\n            hashFnLocals[valueIdentifier] = value;\n            hashFnLocals.$index = index;\n            return trackByExpGetter($scope, hashFnLocals);\n          };\n        }\n\n        // Store a list of elements from previous run. This is a hash where key is the item from the\n        // iterator, and the value is objects with following properties.\n        //   - scope: bound scope\n        //   - element: previous element.\n        //   - index: position\n        //\n        // We are using no-proto object so that we don't need to guard against inherited props via\n        // hasOwnProperty.\n        var lastBlockMap = createMap();\n\n        //watch props\n        $scope.$watchCollection(rhs, function ngRepeatAction(collection) {\n          var index, length,\n              previousNode = $element[0],     // node that cloned nodes should be inserted after\n                                              // initialized to the comment node anchor\n              nextNode,\n              // Same as lastBlockMap but it has the current state. It will become the\n              // lastBlockMap on the next iteration.\n              nextBlockMap = createMap(),\n              collectionLength,\n              key, value, // key/value of iteration\n              trackById,\n              trackByIdFn,\n              collectionKeys,\n              block,       // last object information {scope, element, id}\n              nextBlockOrder,\n              elementsToRemove;\n\n          if (aliasAs) {\n            $scope[aliasAs] = collection;\n          }\n\n          if (isArrayLike(collection)) {\n            collectionKeys = collection;\n            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;\n          } else {\n            trackByIdFn = trackByIdExpFn || trackByIdObjFn;\n            // if object, extract keys, in enumeration order, unsorted\n            collectionKeys = [];\n            for (var itemKey in collection) {\n              if (hasOwnProperty.call(collection, itemKey) && itemKey.charAt(0) !== '$') {\n                collectionKeys.push(itemKey);\n              }\n            }\n          }\n\n          collectionLength = collectionKeys.length;\n          nextBlockOrder = new Array(collectionLength);\n\n          // locate existing items\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            trackById = trackByIdFn(key, value, index);\n            if (lastBlockMap[trackById]) {\n              // found previously seen block\n              block = lastBlockMap[trackById];\n              delete lastBlockMap[trackById];\n              nextBlockMap[trackById] = block;\n              nextBlockOrder[index] = block;\n            } else if (nextBlockMap[trackById]) {\n              // if collision detected. restore lastBlockMap and throw an error\n              forEach(nextBlockOrder, function(block) {\n                if (block && block.scope) lastBlockMap[block.id] = block;\n              });\n              throw ngRepeatMinErr('dupes',\n                  'Duplicates in a repeater are not allowed. Use \\'track by\\' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}',\n                  expression, trackById, value);\n            } else {\n              // new never before seen block\n              nextBlockOrder[index] = {id: trackById, scope: undefined, clone: undefined};\n              nextBlockMap[trackById] = true;\n            }\n          }\n\n          // remove leftover items\n          for (var blockKey in lastBlockMap) {\n            block = lastBlockMap[blockKey];\n            elementsToRemove = getBlockNodes(block.clone);\n            $animate.leave(elementsToRemove);\n            if (elementsToRemove[0].parentNode) {\n              // if the element was not removed yet because of pending animation, mark it as deleted\n              // so that we can ignore it later\n              for (index = 0, length = elementsToRemove.length; index < length; index++) {\n                elementsToRemove[index][NG_REMOVED] = true;\n              }\n            }\n            block.scope.$destroy();\n          }\n\n          // we are not using forEach for perf reasons (trying to avoid #call)\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            block = nextBlockOrder[index];\n\n            if (block.scope) {\n              // if we have already seen this object, then we need to reuse the\n              // associated scope/element\n\n              nextNode = previousNode;\n\n              // skip nodes that are already pending removal via leave animation\n              do {\n                nextNode = nextNode.nextSibling;\n              } while (nextNode && nextNode[NG_REMOVED]);\n\n              if (getBlockStart(block) !== nextNode) {\n                // existing item which got moved\n                $animate.move(getBlockNodes(block.clone), null, previousNode);\n              }\n              previousNode = getBlockEnd(block);\n              updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n            } else {\n              // new item which we don't know about\n              $transclude(function ngRepeatTransclude(clone, scope) {\n                block.scope = scope;\n                // http://jsperf.com/clone-vs-createcomment\n                var endNode = ngRepeatEndComment.cloneNode(false);\n                clone[clone.length++] = endNode;\n\n                $animate.enter(clone, null, previousNode);\n                previousNode = endNode;\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block.clone = clone;\n                nextBlockMap[block.id] = block;\n                updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n              });\n            }\n          }\n          lastBlockMap = nextBlockMap;\n        });\n      };\n    }\n  };\n}];\n\nvar NG_HIDE_CLASS = 'ng-hide';\nvar NG_HIDE_IN_PROGRESS_CLASS = 'ng-hide-animate';\n/**\n * @ngdoc directive\n * @name ngShow\n * @multiElement\n *\n * @description\n * The `ngShow` directive shows or hides the given HTML element based on the expression provided to\n * the `ngShow` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is visible) -->\n * <div ng-show=\"myValue\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is hidden) -->\n * <div ng-show=\"myValue\" class=\"ng-hide\"></div>\n * ```\n *\n * When the `ngShow` expression evaluates to a falsy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When truthy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override anything in CSS and the animations will work around the\n * display style.\n *\n * ## A note about animations with `ngShow`\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                        |\n * |-----------------------------------------------------|---------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden. |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngShow` expression evaluates to a truthy value and just before contents are set to visible.        |\n *\n * @element ANY\n * @param {expression} ngShow If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is shown/hidden respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-simple\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element animate-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-complex\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element funky-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n */\nvar ngShowDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngShow, function ngShowWatchAction(value) {\n        // we're adding a temporary, animation-specific class for ng-hide since this way\n        // we can control when the element is actually displayed on screen without having\n        // to have a global/greedy CSS selector that breaks when other animations are run.\n        // Read: https://github.com/angular/angular.js/issues/9103#issuecomment-58335845\n        $animate[value ? 'removeClass' : 'addClass'](element, NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngHide\n * @multiElement\n *\n * @description\n * The `ngHide` directive shows or hides the given HTML element based on the expression provided to\n * the `ngHide` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is hidden) -->\n * <div ng-hide=\"myValue\" class=\"ng-hide\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is visible) -->\n * <div ng-hide=\"myValue\"></div>\n * ```\n *\n * When the `ngHide` expression evaluates to a truthy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When falsy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the\n * display style.\n *\n * ## A note about animations with `ngHide`\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                     |\n * |-----------------------------------------------------|------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden.  |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngHide` expression evaluates to a non truthy value and just before contents are set to visible. |\n *\n *\n * @element ANY\n * @param {expression} ngHide If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is hidden/shown respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-simple\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element animate-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-complex\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element funky-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n */\nvar ngHideDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngHide, function ngHideWatchAction(value) {\n        // The comment inside of the ngShowDirective explains why we add and\n        // remove a temporary class for the show/hide animation\n        $animate[value ? 'addClass' : 'removeClass'](element,NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngStyle\n * @restrict AC\n *\n * @description\n * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `style`\n * attribute, when using the `ngStyle` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @element ANY\n * @param {expression} ngStyle\n *\n * {@link guide/expression Expression} which evals to an\n * object whose keys are CSS style names and values are corresponding values for those CSS\n * keys.\n *\n * Since some CSS style names are not valid keys for an object, they must be quoted.\n * See the 'background-color' style in the example below.\n *\n * @example\n   <example name=\"ng-style\">\n     <file name=\"index.html\">\n        <input type=\"button\" value=\"set color\" ng-click=\"myStyle={color:'red'}\">\n        <input type=\"button\" value=\"set background\" ng-click=\"myStyle={'background-color':'blue'}\">\n        <input type=\"button\" value=\"clear\" ng-click=\"myStyle={}\">\n        <br/>\n        <span ng-style=\"myStyle\">Sample Text</span>\n        <pre>myStyle={{myStyle}}</pre>\n     </file>\n     <file name=\"style.css\">\n       span {\n         color: black;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var colorSpan = element(by.css('span'));\n\n       it('should check ng-style', function() {\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n         element(by.css('input[value=\\'set color\\']')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');\n         element(by.css('input[value=clear]')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n       });\n     </file>\n   </example>\n */\nvar ngStyleDirective = ngDirective(function(scope, element, attr) {\n  scope.$watch(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {\n    if (oldStyles && (newStyles !== oldStyles)) {\n      forEach(oldStyles, function(val, style) { element.css(style, '');});\n    }\n    if (newStyles) element.css(newStyles);\n  }, true);\n});\n\n/**\n * @ngdoc directive\n * @name ngSwitch\n * @restrict EA\n *\n * @description\n * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.\n * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location\n * as specified in the template.\n *\n * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it\n * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element\n * matches the value obtained from the evaluated expression. In other words, you define a container element\n * (where you place the directive), place an expression on the **`on=\"...\"` attribute**\n * (or the **`ng-switch=\"...\"` attribute**), define any inner elements inside of the directive and place\n * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on\n * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default\n * attribute is displayed.\n *\n * <div class=\"alert alert-info\">\n * Be aware that the attribute values to match against cannot be expressions. They are interpreted\n * as literal string values to match against.\n * For example, **`ng-switch-when=\"someVal\"`** will match against the string `\"someVal\"` not against the\n * value of the expression `$scope.someVal`.\n * </div>\n\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | after the ngSwitch contents change and the matched child element is placed inside the container |\n * | {@link ng.$animate#leave leave}  | after the ngSwitch contents change and just before the former contents are removed from the DOM |\n *\n * @usage\n *\n * ```\n * <ANY ng-switch=\"expression\">\n *   <ANY ng-switch-when=\"matchValue1\">...</ANY>\n *   <ANY ng-switch-when=\"matchValue2\">...</ANY>\n *   <ANY ng-switch-default>...</ANY>\n * </ANY>\n * ```\n *\n *\n * @scope\n * @priority 1200\n * @param {*} ngSwitch|on expression to match against <code>ng-switch-when</code>.\n * On child elements add:\n *\n * * `ngSwitchWhen`: the case statement to match against. If match then this\n *   case will be displayed. If the same match appears multiple times, all the\n *   elements will be displayed. It is possible to associate multiple values to\n *   the same `ngSwitchWhen` by defining the optional attribute\n *   `ngSwitchWhenSeparator`. The separator will be used to split the value of\n *   the `ngSwitchWhen` attribute into multiple tokens, and the element will show\n *   if any of the `ngSwitch` evaluates to any of these tokens.\n * * `ngSwitchDefault`: the default case when no other case match. If there\n *   are multiple default cases, all of them will be displayed when no other\n *   case match.\n *\n *\n * @example\n  <example module=\"switchExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-switch\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <select ng-model=\"selection\" ng-options=\"item for item in items\">\n        </select>\n        <code>selection={{selection}}</code>\n        <hr/>\n        <div class=\"animate-switch-container\"\n          ng-switch on=\"selection\">\n            <div class=\"animate-switch\" ng-switch-when=\"settings|options\" ng-switch-when-separator=\"|\">Settings Div</div>\n            <div class=\"animate-switch\" ng-switch-when=\"home\">Home Span</div>\n            <div class=\"animate-switch\" ng-switch-default>default</div>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('switchExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.items = ['settings', 'home', 'options', 'other'];\n          $scope.selection = $scope.items[0];\n        }]);\n    </file>\n    <file name=\"animations.css\">\n      .animate-switch-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .animate-switch {\n        padding:10px;\n      }\n\n      .animate-switch.ng-animate {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n      }\n\n      .animate-switch.ng-leave.ng-leave-active,\n      .animate-switch.ng-enter {\n        top:-50px;\n      }\n      .animate-switch.ng-leave,\n      .animate-switch.ng-enter.ng-enter-active {\n        top:0;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var switchElem = element(by.css('[ng-switch]'));\n      var select = element(by.model('selection'));\n\n      it('should start in settings', function() {\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should change to home', function() {\n        select.all(by.css('option')).get(1).click();\n        expect(switchElem.getText()).toMatch(/Home Span/);\n      });\n      it('should change to settings via \"options\"', function() {\n        select.all(by.css('option')).get(2).click();\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should select default', function() {\n        select.all(by.css('option')).get(3).click();\n        expect(switchElem.getText()).toMatch(/default/);\n      });\n    </file>\n  </example>\n */\nvar ngSwitchDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    require: 'ngSwitch',\n\n    // asks for $scope to fool the BC controller module\n    controller: ['$scope', function NgSwitchController() {\n     this.cases = {};\n    }],\n    link: function(scope, element, attr, ngSwitchController) {\n      var watchExpr = attr.ngSwitch || attr.on,\n          selectedTranscludes = [],\n          selectedElements = [],\n          previousLeaveAnimations = [],\n          selectedScopes = [];\n\n      var spliceFactory = function(array, index) {\n          return function(response) {\n            if (response !== false) array.splice(index, 1);\n          };\n      };\n\n      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {\n        var i, ii;\n\n        // Start with the last, in case the array is modified during the loop\n        while (previousLeaveAnimations.length) {\n          $animate.cancel(previousLeaveAnimations.pop());\n        }\n\n        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {\n          var selected = getBlockNodes(selectedElements[i].clone);\n          selectedScopes[i].$destroy();\n          var runner = previousLeaveAnimations[i] = $animate.leave(selected);\n          runner.done(spliceFactory(previousLeaveAnimations, i));\n        }\n\n        selectedElements.length = 0;\n        selectedScopes.length = 0;\n\n        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {\n          forEach(selectedTranscludes, function(selectedTransclude) {\n            selectedTransclude.transclude(function(caseElement, selectedScope) {\n              selectedScopes.push(selectedScope);\n              var anchor = selectedTransclude.element;\n              caseElement[caseElement.length++] = $compile.$$createComment('end ngSwitchWhen');\n              var block = { clone: caseElement };\n\n              selectedElements.push(block);\n              $animate.enter(caseElement, anchor.parent(), anchor);\n            });\n          });\n        }\n      });\n    }\n  };\n}];\n\nvar ngSwitchWhenDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attrs, ctrl, $transclude) {\n\n    var cases = attrs.ngSwitchWhen.split(attrs.ngSwitchWhenSeparator).sort().filter(\n      // Filter duplicate cases\n      function(element, index, array) { return array[index - 1] !== element; }\n    );\n\n    forEach(cases, function(whenCase) {\n      ctrl.cases['!' + whenCase] = (ctrl.cases['!' + whenCase] || []);\n      ctrl.cases['!' + whenCase].push({ transclude: $transclude, element: element });\n    });\n  }\n});\n\nvar ngSwitchDefaultDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attr, ctrl, $transclude) {\n    ctrl.cases['?'] = (ctrl.cases['?'] || []);\n    ctrl.cases['?'].push({ transclude: $transclude, element: element });\n   }\n});\n\n/**\n * @ngdoc directive\n * @name ngTransclude\n * @restrict EAC\n *\n * @description\n * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.\n *\n * You can specify that you want to insert a named transclusion slot, instead of the default slot, by providing the slot name\n * as the value of the `ng-transclude` or `ng-transclude-slot` attribute.\n *\n * If the transcluded content is not empty (i.e. contains one or more DOM nodes, including whitespace text nodes), any existing\n * content of this element will be removed before the transcluded content is inserted.\n * If the transcluded content is empty, the existing content is left intact. This lets you provide fallback content in the case\n * that no transcluded content is provided.\n *\n * @element ANY\n *\n * @param {string} ngTransclude|ngTranscludeSlot the name of the slot to insert at this point. If this is not provided, is empty\n *                                               or its value is the same as the name of the attribute then the default slot is used.\n *\n * @example\n * ### Basic transclusion\n * This example demonstrates basic transclusion of content into a component directive.\n * <example name=\"simpleTranscludeExample\" module=\"transcludeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('transcludeExample', [])\n *        .directive('pane', function(){\n *           return {\n *             restrict: 'E',\n *             transclude: true,\n *             scope: { title:'@' },\n *             template: '<div style=\"border: 1px solid black;\">' +\n *                         '<div style=\"background-color: gray\">{{title}}</div>' +\n *                         '<ng-transclude></ng-transclude>' +\n *                       '</div>'\n *           };\n *       })\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.title = 'Lorem Ipsum';\n *         $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *       }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *       <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *       <pane title=\"{{title}}\">{{text}}</pane>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.binding('title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *      });\n *   </file>\n * </example>\n *\n * @example\n * ### Transclude fallback content\n * This example shows how to use `NgTransclude` with fallback content, that\n * is displayed if no transcluded content is provided.\n *\n * <example module=\"transcludeFallbackContentExample\" name=\"ng-transclude\">\n * <file name=\"index.html\">\n * <script>\n * angular.module('transcludeFallbackContentExample', [])\n * .directive('myButton', function(){\n *             return {\n *               restrict: 'E',\n *               transclude: true,\n *               scope: true,\n *               template: '<button style=\"cursor: pointer;\">' +\n *                           '<ng-transclude>' +\n *                             '<b style=\"color: red;\">Button1</b>' +\n *                           '</ng-transclude>' +\n *                         '</button>'\n *             };\n *         });\n * </script>\n * <!-- fallback button content -->\n * <my-button id=\"fallback\"></my-button>\n * <!-- modified button content -->\n * <my-button id=\"modified\">\n *   <i style=\"color: green;\">Button2</i>\n * </my-button>\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n * it('should have different transclude element content', function() {\n *          expect(element(by.id('fallback')).getText()).toBe('Button1');\n *          expect(element(by.id('modified')).getText()).toBe('Button2');\n *        });\n * </file>\n * </example>\n *\n * @example\n * ### Multi-slot transclusion\n * This example demonstrates using multi-slot transclusion in a component directive.\n * <example name=\"multiSlotTranscludeExample\" module=\"multiSlotTranscludeExample\">\n *   <file name=\"index.html\">\n *    <style>\n *      .title, .footer {\n *        background-color: gray\n *      }\n *    </style>\n *    <div ng-controller=\"ExampleController\">\n *      <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *      <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *      <pane>\n *        <pane-title><a ng-href=\"{{link}}\">{{title}}</a></pane-title>\n *        <pane-body><p>{{text}}</p></pane-body>\n *      </pane>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('multiSlotTranscludeExample', [])\n *     .directive('pane', function() {\n *        return {\n *          restrict: 'E',\n *          transclude: {\n *            'title': '?paneTitle',\n *            'body': 'paneBody',\n *            'footer': '?paneFooter'\n *          },\n *          template: '<div style=\"border: 1px solid black;\">' +\n *                      '<div class=\"title\" ng-transclude=\"title\">Fallback Title</div>' +\n *                      '<div ng-transclude=\"body\"></div>' +\n *                      '<div class=\"footer\" ng-transclude=\"footer\">Fallback Footer</div>' +\n *                    '</div>'\n *        };\n *    })\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.title = 'Lorem Ipsum';\n *      $scope.link = 'https://google.com';\n *      $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *    }]);\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded the title and the body', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.css('.title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *        expect(element(by.css('.footer')).getText()).toEqual('Fallback Footer');\n *      });\n *   </file>\n * </example>\n */\nvar ngTranscludeMinErr = minErr('ngTransclude');\nvar ngTranscludeDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'EAC',\n    terminal: true,\n    compile: function ngTranscludeCompile(tElement) {\n\n      // Remove and cache any original content to act as a fallback\n      var fallbackLinkFn = $compile(tElement.contents());\n      tElement.empty();\n\n      return function ngTranscludePostLink($scope, $element, $attrs, controller, $transclude) {\n\n        if (!$transclude) {\n          throw ngTranscludeMinErr('orphan',\n          'Illegal use of ngTransclude directive in the template! ' +\n          'No parent directive that requires a transclusion found. ' +\n          'Element: {0}',\n          startingTag($element));\n        }\n\n\n        // If the attribute is of the form: `ng-transclude=\"ng-transclude\"` then treat it like the default\n        if ($attrs.ngTransclude === $attrs.$attr.ngTransclude) {\n          $attrs.ngTransclude = '';\n        }\n        var slotName = $attrs.ngTransclude || $attrs.ngTranscludeSlot;\n\n        // If the slot is required and no transclusion content is provided then this call will throw an error\n        $transclude(ngTranscludeCloneAttachFn, null, slotName);\n\n        // If the slot is optional and no transclusion content is provided then use the fallback content\n        if (slotName && !$transclude.isSlotFilled(slotName)) {\n          useFallbackContent();\n        }\n\n        function ngTranscludeCloneAttachFn(clone, transcludedScope) {\n          if (clone.length) {\n            $element.append(clone);\n          } else {\n            useFallbackContent();\n            // There is nothing linked against the transcluded scope since no content was available,\n            // so it should be safe to clean up the generated scope.\n            transcludedScope.$destroy();\n          }\n        }\n\n        function useFallbackContent() {\n          // Since this is the fallback content rather than the transcluded content,\n          // we link against the scope of this directive rather than the transcluded scope\n          fallbackLinkFn($scope, function(clone) {\n            $element.append(clone);\n          });\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name script\n * @restrict E\n *\n * @description\n * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the\n * template can be used by {@link ng.directive:ngInclude `ngInclude`},\n * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the\n * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be\n * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.\n *\n * @param {string} type Must be set to `'text/ng-template'`.\n * @param {string} id Cache name of the template.\n *\n * @example\n  <example  name=\"script-tag\">\n    <file name=\"index.html\">\n      <script type=\"text/ng-template\" id=\"/tpl.html\">\n        Content of the template.\n      </script>\n\n      <a ng-click=\"currentTpl='/tpl.html'\" id=\"tpl-link\">Load inlined template</a>\n      <div id=\"tpl-content\" ng-include src=\"currentTpl\"></div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should load template defined inside script tag', function() {\n        element(by.css('#tpl-link')).click();\n        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);\n      });\n    </file>\n  </example>\n */\nvar scriptDirective = ['$templateCache', function($templateCache) {\n  return {\n    restrict: 'E',\n    terminal: true,\n    compile: function(element, attr) {\n      if (attr.type === 'text/ng-template') {\n        var templateUrl = attr.id,\n            text = element[0].text;\n\n        $templateCache.put(templateUrl, text);\n      }\n    }\n  };\n}];\n\n/* exported selectDirective, optionDirective */\n\nvar noopNgModelController = { $setViewValue: noop, $render: noop };\n\nfunction chromeHack(optionElement) {\n  // Workaround for https://code.google.com/p/chromium/issues/detail?id=381459\n  // Adding an <option selected=\"selected\"> element to a <select required=\"required\"> should\n  // automatically select the new element\n  if (optionElement[0].hasAttribute('selected')) {\n    optionElement[0].selected = true;\n  }\n}\n\n/**\n * @ngdoc type\n * @name  select.SelectController\n * @description\n * The controller for the `<select>` directive. This provides support for reading\n * and writing the selected value(s) of the control and also coordinates dynamically\n * added `<option>` elements, perhaps by an `ngRepeat` directive.\n */\nvar SelectController =\n        ['$element', '$scope', /** @this */ function($element, $scope) {\n\n  var self = this,\n      optionsMap = new HashMap();\n\n  // If the ngModel doesn't get provided then provide a dummy noop version to prevent errors\n  self.ngModelCtrl = noopNgModelController;\n\n  // The \"unknown\" option is one that is prepended to the list if the viewValue\n  // does not match any of the options. When it is rendered the value of the unknown\n  // option is '? XXX ?' where XXX is the hashKey of the value that is not known.\n  //\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  self.unknownOption = jqLite(window.document.createElement('option'));\n  self.renderUnknownOption = function(val) {\n    var unknownVal = '? ' + hashKey(val) + ' ?';\n    self.unknownOption.val(unknownVal);\n    $element.prepend(self.unknownOption);\n    $element.val(unknownVal);\n  };\n\n  $scope.$on('$destroy', function() {\n    // disable unknown option so that we don't do work when the whole select is being destroyed\n    self.renderUnknownOption = noop;\n  });\n\n  self.removeUnknownOption = function() {\n    if (self.unknownOption.parent()) self.unknownOption.remove();\n  };\n\n\n  // Read the value of the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.readValue = function readSingleValue() {\n    self.removeUnknownOption();\n    return $element.val();\n  };\n\n\n  // Write the value to the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.writeValue = function writeSingleValue(value) {\n    if (self.hasOption(value)) {\n      self.removeUnknownOption();\n      $element.val(value);\n      if (value === '') self.emptyOption.prop('selected', true); // to make IE9 happy\n    } else {\n      if (value == null && self.emptyOption) {\n        self.removeUnknownOption();\n        $element.val('');\n      } else {\n        self.renderUnknownOption(value);\n      }\n    }\n  };\n\n\n  // Tell the select control that an option, with the given value, has been added\n  self.addOption = function(value, element) {\n    // Skip comment nodes, as they only pollute the `optionsMap`\n    if (element[0].nodeType === NODE_TYPE_COMMENT) return;\n\n    assertNotHasOwnProperty(value, '\"option value\"');\n    if (value === '') {\n      self.emptyOption = element;\n    }\n    var count = optionsMap.get(value) || 0;\n    optionsMap.put(value, count + 1);\n    self.ngModelCtrl.$render();\n    chromeHack(element);\n  };\n\n  // Tell the select control that an option, with the given value, has been removed\n  self.removeOption = function(value) {\n    var count = optionsMap.get(value);\n    if (count) {\n      if (count === 1) {\n        optionsMap.remove(value);\n        if (value === '') {\n          self.emptyOption = undefined;\n        }\n      } else {\n        optionsMap.put(value, count - 1);\n      }\n    }\n  };\n\n  // Check whether the select control has an option matching the given value\n  self.hasOption = function(value) {\n    return !!optionsMap.get(value);\n  };\n\n\n  self.registerOption = function(optionScope, optionElement, optionAttrs, hasDynamicValueAttr, interpolateTextFn) {\n\n    if (hasDynamicValueAttr) {\n      // either \"value\" is interpolated directly, or set by ngValue\n      var oldVal;\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n        if (isDefined(oldVal)) {\n          self.removeOption(oldVal);\n        }\n        oldVal = newVal;\n        self.addOption(newVal, optionElement);\n      });\n    } else if (interpolateTextFn) {\n      // The text content is interpolated\n      optionScope.$watch(interpolateTextFn, function interpolateWatchAction(newVal, oldVal) {\n        optionAttrs.$set('value', newVal);\n        if (oldVal !== newVal) {\n          self.removeOption(oldVal);\n        }\n        self.addOption(newVal, optionElement);\n      });\n    } else {\n      // The value attribute is static\n      self.addOption(optionAttrs.value, optionElement);\n    }\n\n    optionElement.on('$destroy', function() {\n      self.removeOption(optionAttrs.value);\n      self.ngModelCtrl.$render();\n    });\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name select\n * @restrict E\n *\n * @description\n * HTML `SELECT` element with angular data-binding.\n *\n * The `select` directive is used together with {@link ngModel `ngModel`} to provide data-binding\n * between the scope and the `<select>` control (including setting default values).\n * It also handles dynamic `<option>` elements, which can be added using the {@link ngRepeat `ngRepeat}` or\n * {@link ngOptions `ngOptions`} directives.\n *\n * When an item in the `<select>` menu is selected, the value of the selected option will be bound\n * to the model identified by the `ngModel` directive. With static or repeated options, this is\n * the content of the `value` attribute or the textContent of the `<option>`, if the value attribute is missing.\n * For dynamic options, use interpolation inside the `value` attribute or the `textContent`. Using\n * {@link ngValue ngValue} is also possible (as it sets the `value` attribute), and will take\n * precedence over `value` and `textContent`.\n *\n * <div class=\"alert alert-warning\">\n * Note that the value of a `select` directive used without `ngOptions` is always a string.\n * When the model needs to be bound to a non-string value, you must either explicitly convert it\n * using a directive (see example below) or use `ngOptions` to specify the set of options.\n * This is because an option element can only be bound to string values at present.\n * </div>\n *\n * If the viewValue of `ngModel` does not match any of the options, then the control\n * will automatically add an \"unknown\" option, which it then removes when the mismatch is resolved.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * <div class=\"alert alert-info\">\n * In many cases, `ngRepeat` can be used on `<option>` elements instead of {@link ng.directive:ngOptions\n * ngOptions} to achieve a similar result. However, `ngOptions` provides some benefits, such as\n * more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression, and additionally in reducing memory and increasing speed by not creating\n * a new scope for each repeated instance.\n * </div>\n *\n *\n * @param {string} ngModel Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} multiple Allows multiple options to be selected. The selected values will be\n *     bound to the model as an array.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds required attribute and required validation constraint to\n * the element when the ngRequired expression evaluates to true. Use ngRequired instead of required\n * when you want to data-bind to the required attribute.\n * @param {string=} ngChange Angular expression to be executed when selected option(s) changes due to user\n *    interaction with the select element.\n * @param {string=} ngOptions sets the options that the select is populated with and defines what is\n * set on the model on selection. See {@link ngOptions `ngOptions`}.\n *\n * @example\n * ### Simple `select` elements with static options\n *\n * <example name=\"static-select\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"singleSelect\"> Single select: </label><br>\n *     <select name=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *\n *     <label for=\"singleSelect\"> Single select with \"not selected\" option and dynamic option values: </label><br>\n *     <select name=\"singleSelect\" id=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"\">---Please select---</option> <!-- not selected / blank option -->\n *       <option value=\"{{data.option1}}\">Option 1</option> <!-- interpolation -->\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *     <tt>singleSelect = {{data.singleSelect}}</tt>\n *\n *     <hr>\n *     <label for=\"multipleSelect\"> Multiple select: </label><br>\n *     <select name=\"multipleSelect\" id=\"multipleSelect\" ng-model=\"data.multipleSelect\" multiple>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *       <option value=\"option-3\">Option 3</option>\n *     </select><br>\n *     <tt>multipleSelect = {{data.multipleSelect}}</tt><br/>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       singleSelect: null,\n *       multipleSelect: [],\n *       option1: 'option-1'\n *      };\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.data.singleSelect = 'nonsense';\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * ### Using `ngRepeat` to generate `select` options\n * <example name=\"ngrepeat-select\" module=\"ngrepeatSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"repeatSelect\"> Repeat select: </label>\n *     <select name=\"repeatSelect\" id=\"repeatSelect\" ng-model=\"data.repeatSelect\">\n *       <option ng-repeat=\"option in data.availableOptions\" value=\"{{option.id}}\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <tt>repeatSelect = {{data.repeatSelect}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngrepeatSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       repeatSelect: null,\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ]\n *      };\n *   }]);\n * </file>\n *</example>\n *\n *\n * ### Using `select` with `ngOptions` and setting a default value\n * See the {@link ngOptions ngOptions documentation} for more `ngOptions` usage examples.\n *\n * <example name=\"select-with-default-values\" module=\"defaultValueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"mySelect\">Make a choice:</label>\n *     <select name=\"mySelect\" id=\"mySelect\"\n *       ng-options=\"option.name for option in data.availableOptions track by option.id\"\n *       ng-model=\"data.selectedOption\"></select>\n *   </form>\n *   <hr>\n *   <tt>option = {{data.selectedOption}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('defaultValueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ],\n *       selectedOption: {id: '3', name: 'Option C'} //This sets the default value of the select in the ui\n *       };\n *   }]);\n * </file>\n *</example>\n *\n *\n * ### Binding `select` to a non-string value via `ngModel` parsing / formatting\n *\n * <example name=\"select-with-non-string-options\" module=\"nonStringSelect\">\n *   <file name=\"index.html\">\n *     <select ng-model=\"model.id\" convert-to-number>\n *       <option value=\"0\">Zero</option>\n *       <option value=\"1\">One</option>\n *       <option value=\"2\">Two</option>\n *     </select>\n *     {{ model }}\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('nonStringSelect', [])\n *       .run(function($rootScope) {\n *         $rootScope.model = { id: 2 };\n *       })\n *       .directive('convertToNumber', function() {\n *         return {\n *           require: 'ngModel',\n *           link: function(scope, element, attrs, ngModel) {\n *             ngModel.$parsers.push(function(val) {\n *               return parseInt(val, 10);\n *             });\n *             ngModel.$formatters.push(function(val) {\n *               return '' + val;\n *             });\n *           }\n *         };\n *       });\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should initialize to model', function() {\n *       expect(element(by.model('model.id')).$('option:checked').getText()).toEqual('Two');\n *     });\n *   </file>\n * </example>\n *\n */\nvar selectDirective = function() {\n\n  return {\n    restrict: 'E',\n    require: ['select', '?ngModel'],\n    controller: SelectController,\n    priority: 1,\n    link: {\n      pre: selectPreLink,\n      post: selectPostLink\n    }\n  };\n\n  function selectPreLink(scope, element, attr, ctrls) {\n\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n\n      selectCtrl.ngModelCtrl = ngModelCtrl;\n\n      // When the selected item(s) changes we delegate getting the value of the select control\n      // to the `readValue` method, which can be changed if the select can have multiple\n      // selected values or if the options are being generated by `ngOptions`\n      element.on('change', function() {\n        scope.$apply(function() {\n          ngModelCtrl.$setViewValue(selectCtrl.readValue());\n        });\n      });\n\n      // If the select allows multiple values then we need to modify how we read and write\n      // values from and to the control; also what it means for the value to be empty and\n      // we have to add an extra watch since ngModel doesn't work well with arrays - it\n      // doesn't trigger rendering if only an item in the array changes.\n      if (attr.multiple) {\n\n        // Read value now needs to check each option to see if it is selected\n        selectCtrl.readValue = function readMultipleValue() {\n          var array = [];\n          forEach(element.find('option'), function(option) {\n            if (option.selected) {\n              array.push(option.value);\n            }\n          });\n          return array;\n        };\n\n        // Write value now needs to set the selected property of each matching option\n        selectCtrl.writeValue = function writeMultipleValue(value) {\n          var items = new HashMap(value);\n          forEach(element.find('option'), function(option) {\n            option.selected = isDefined(items.get(option.value));\n          });\n        };\n\n        // we have to do it on each watch since ngModel watches reference, but\n        // we need to work of an array, so we need to see if anything was inserted/removed\n        var lastView, lastViewRef = NaN;\n        scope.$watch(function selectMultipleWatch() {\n          if (lastViewRef === ngModelCtrl.$viewValue && !equals(lastView, ngModelCtrl.$viewValue)) {\n            lastView = shallowCopy(ngModelCtrl.$viewValue);\n            ngModelCtrl.$render();\n          }\n          lastViewRef = ngModelCtrl.$viewValue;\n        });\n\n        // If we are a multiple select then value is now a collection\n        // so the meaning of $isEmpty changes\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n\n      }\n    }\n\n    function selectPostLink(scope, element, attrs, ctrls) {\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n\n      // We delegate rendering to the `writeValue` method, which can be changed\n      // if the select can have multiple selected values or if the options are being\n      // generated by `ngOptions`.\n      // This must be done in the postLink fn to prevent $render to be called before\n      // all nodes have been linked correctly.\n      ngModelCtrl.$render = function() {\n        selectCtrl.writeValue(ngModelCtrl.$viewValue);\n      };\n    }\n};\n\n\n// The option directive is purely designed to communicate the existence (or lack of)\n// of dynamically created (and destroyed) option elements to their containing select\n// directive via its controller.\nvar optionDirective = ['$interpolate', function($interpolate) {\n  return {\n    restrict: 'E',\n    priority: 100,\n    compile: function(element, attr) {\n      var hasDynamicValueAttr, interpolateTextFn;\n\n      if (isDefined(attr.ngValue)) {\n        // If ngValue is defined, then the value attr will be set to the result of the expression,\n        // and the selectCtrl must set up an observer\n        hasDynamicValueAttr = true;\n      } else if (isDefined(attr.value)) {\n        // If the value attr contains an interpolation, the selectCtrl must set up an observer\n        hasDynamicValueAttr = $interpolate(attr.value, true);\n      } else {\n        // If the value attribute is not defined then we fall back to the\n        // text content of the option element, which may be interpolated\n        interpolateTextFn = $interpolate(element.text(), true);\n        if (!interpolateTextFn) {\n          attr.$set('value', element.text());\n        }\n      }\n\n      return function(scope, element, attr) {\n        // This is an optimization over using ^^ since we don't want to have to search\n        // all the way to the root of the DOM for every single option element\n        var selectCtrlName = '$selectController',\n            parent = element.parent(),\n            selectCtrl = parent.data(selectCtrlName) ||\n              parent.parent().data(selectCtrlName); // in case we are in optgroup\n\n        if (selectCtrl) {\n          selectCtrl.registerOption(scope, element, attr, hasDynamicValueAttr, interpolateTextFn);\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRequired\n * @restrict A\n *\n * @description\n *\n * ngRequired adds the required {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for {@link input `input`} and {@link select `select`} controls, but can also be\n * applied to custom controls.\n *\n * The directive sets the `required` attribute on the element if the Angular expression inside\n * `ngRequired` evaluates to true. A special directive for setting `required` is necessary because we\n * cannot use interpolation inside `required`. See the {@link guide/interpolation interpolation guide}\n * for more info.\n *\n * The validator will set the `required` error key to true if the `required` attribute is set and\n * calling {@link ngModel.NgModelController#$isEmpty `NgModelController.$isEmpty`} with the\n * {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`} returns `true`. For example, the\n * `$isEmpty()` implementation for `input[text]` checks the length of the `$viewValue`. When developing\n * custom controls, `$isEmpty()` can be overwritten to account for a $viewValue that is not string-based.\n *\n * @example\n * <example name=\"ngRequiredDirective\" module=\"ngRequiredExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngRequiredExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.required = true;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"required\">Toggle required: </label>\n *         <input type=\"checkbox\" ng-model=\"required\" id=\"required\" />\n *         <br>\n *         <label for=\"input\">This input must be filled if `required` is true: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-required=\"required\" /><br>\n *         <hr>\n *         required error set? = <code>{{form.input.$error.required}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var required = element(by.binding('form.input.$error.required'));\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should set the required error', function() {\n         expect(required.getText()).toContain('true');\n\n         input.sendKeys('123');\n         expect(required.getText()).not.toContain('true');\n         expect(model.getText()).toContain('123');\n       });\n *   </file>\n * </example>\n */\nvar requiredDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n      attr.required = true; // force truthy in case we are on non input element\n\n      ctrl.$validators.required = function(modelValue, viewValue) {\n        return !attr.required || !ctrl.$isEmpty(viewValue);\n      };\n\n      attr.$observe('required', function() {\n        ctrl.$validate();\n      });\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngPattern\n *\n * @description\n *\n * ngPattern adds the pattern {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `pattern` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * does not match a RegExp which is obtained by evaluating the Angular expression given in the\n * `ngPattern` attribute value:\n * * If the expression evaluates to a RegExp object, then this is used directly.\n * * If the expression evaluates to a string, then it will be converted to a RegExp after wrapping it\n * in `^` and `$` characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n *\n * <div class=\"alert alert-info\">\n * **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n * start at the index of the last search's match, thus not taking the whole input value into\n * account.\n * </div>\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `pattern` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngPattern` does not set the `pattern` attribute and therefore HTML5 constraint validation is\n *     not available.\n *   </li>\n *   <li>\n *     The `ngPattern` attribute must be an expression, while the `pattern` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngPatternDirective\" module=\"ngPatternExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngPatternExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.regex = '\\\\d+';\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"regex\">Set a pattern (regex string): </label>\n *         <input type=\"text\" ng-model=\"regex\" id=\"regex\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current pattern: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-pattern=\"regex\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default pattern', function() {\n         input.sendKeys('aaa');\n         expect(model.getText()).not.toContain('aaa');\n\n         input.clear().then(function() {\n           input.sendKeys('123');\n           expect(model.getText()).toContain('123');\n         });\n       });\n *   </file>\n * </example>\n */\nvar patternDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var regexp, patternExp = attr.ngPattern || attr.pattern;\n      attr.$observe('pattern', function(regex) {\n        if (isString(regex) && regex.length > 0) {\n          regex = new RegExp('^' + regex + '$');\n        }\n\n        if (regex && !regex.test) {\n          throw minErr('ngPattern')('noregexp',\n            'Expected {0} to be a RegExp but was {1}. Element: {2}', patternExp,\n            regex, startingTag(elm));\n        }\n\n        regexp = regex || undefined;\n        ctrl.$validate();\n      });\n\n      ctrl.$validators.pattern = function(modelValue, viewValue) {\n        // HTML5 pattern constraint validates the input value, so we validate the viewValue\n        return ctrl.$isEmpty(viewValue) || isUndefined(regexp) || regexp.test(viewValue);\n      };\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngMaxlength\n *\n * @description\n *\n * ngMaxlength adds the maxlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `maxlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is longer than the integer obtained by evaluating the Angular expression given in the\n * `ngMaxlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `maxlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMaxlength` does not set the `maxlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMaxlength` attribute must be an expression, while the `maxlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMaxlengthDirective\" module=\"ngMaxlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMaxlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.maxlength = 5;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"maxlength\">Set a maxlength: </label>\n *         <input type=\"number\" ng-model=\"maxlength\" id=\"maxlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current maxlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-maxlength=\"maxlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default maxlength', function() {\n         input.sendKeys('abcdef');\n         expect(model.getText()).not.toContain('abcdef');\n\n         input.clear().then(function() {\n           input.sendKeys('abcde');\n           expect(model.getText()).toContain('abcde');\n         });\n       });\n *   </file>\n * </example>\n */\nvar maxlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var maxlength = -1;\n      attr.$observe('maxlength', function(value) {\n        var intVal = toInt(value);\n        maxlength = isNumberNaN(intVal) ? -1 : intVal;\n        ctrl.$validate();\n      });\n      ctrl.$validators.maxlength = function(modelValue, viewValue) {\n        return (maxlength < 0) || ctrl.$isEmpty(viewValue) || (viewValue.length <= maxlength);\n      };\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngMinlength\n *\n * @description\n *\n * ngMinlength adds the minlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `minlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is shorter than the integer obtained by evaluating the Angular expression given in the\n * `ngMinlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `minlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMinlength` does not set the `minlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMinlength` value must be an expression, while the `minlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMinlengthDirective\" module=\"ngMinlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMinlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.minlength = 3;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"minlength\">Set a minlength: </label>\n *         <input type=\"number\" ng-model=\"minlength\" id=\"minlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current minlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-minlength=\"minlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default minlength', function() {\n         input.sendKeys('ab');\n         expect(model.getText()).not.toContain('ab');\n\n         input.sendKeys('abc');\n         expect(model.getText()).toContain('abc');\n       });\n *   </file>\n * </example>\n */\nvar minlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var minlength = 0;\n      attr.$observe('minlength', function(value) {\n        minlength = toInt(value) || 0;\n        ctrl.$validate();\n      });\n      ctrl.$validators.minlength = function(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || viewValue.length >= minlength;\n      };\n    }\n  };\n};\n\nif (window.angular.bootstrap) {\n  //AngularJS is already loaded, so we can return here...\n  if (window.console) {\n    console.log('WARNING: Tried to load angular more than once.');\n  }\n  return;\n}\n\n//try to bind to jquery now so that one can write jqLite(document).ready()\n//but we will rebind on bootstrap again.\nbindJQuery();\n\npublishExternalAPI(angular);\n\nangular.module(\"ngLocale\", [], [\"$provide\", function($provide) {\nvar PLURAL_CATEGORY = {ZERO: \"zero\", ONE: \"one\", TWO: \"two\", FEW: \"few\", MANY: \"many\", OTHER: \"other\"};\nfunction getDecimals(n) {\n  n = n + '';\n  var i = n.indexOf('.');\n  return (i == -1) ? 0 : n.length - i - 1;\n}\n\nfunction getVF(n, opt_precision) {\n  var v = opt_precision;\n\n  if (undefined === v) {\n    v = Math.min(getDecimals(n), 3);\n  }\n\n  var base = Math.pow(10, v);\n  var f = ((n * base) | 0) % base;\n  return {v: v, f: f};\n}\n\n$provide.value(\"$locale\", {\n  \"DATETIME_FORMATS\": {\n    \"AMPMS\": [\n      \"AM\",\n      \"PM\"\n    ],\n    \"DAY\": [\n      \"Sunday\",\n      \"Monday\",\n      \"Tuesday\",\n      \"Wednesday\",\n      \"Thursday\",\n      \"Friday\",\n      \"Saturday\"\n    ],\n    \"ERANAMES\": [\n      \"Before Christ\",\n      \"Anno Domini\"\n    ],\n    \"ERAS\": [\n      \"BC\",\n      \"AD\"\n    ],\n    \"FIRSTDAYOFWEEK\": 6,\n    \"MONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"SHORTDAY\": [\n      \"Sun\",\n      \"Mon\",\n      \"Tue\",\n      \"Wed\",\n      \"Thu\",\n      \"Fri\",\n      \"Sat\"\n    ],\n    \"SHORTMONTH\": [\n      \"Jan\",\n      \"Feb\",\n      \"Mar\",\n      \"Apr\",\n      \"May\",\n      \"Jun\",\n      \"Jul\",\n      \"Aug\",\n      \"Sep\",\n      \"Oct\",\n      \"Nov\",\n      \"Dec\"\n    ],\n    \"STANDALONEMONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"WEEKENDRANGE\": [\n      5,\n      6\n    ],\n    \"fullDate\": \"EEEE, MMMM d, y\",\n    \"longDate\": \"MMMM d, y\",\n    \"medium\": \"MMM d, y h:mm:ss a\",\n    \"mediumDate\": \"MMM d, y\",\n    \"mediumTime\": \"h:mm:ss a\",\n    \"short\": \"M/d/yy h:mm a\",\n    \"shortDate\": \"M/d/yy\",\n    \"shortTime\": \"h:mm a\"\n  },\n  \"NUMBER_FORMATS\": {\n    \"CURRENCY_SYM\": \"$\",\n    \"DECIMAL_SEP\": \".\",\n    \"GROUP_SEP\": \",\",\n    \"PATTERNS\": [\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 3,\n        \"minFrac\": 0,\n        \"minInt\": 1,\n        \"negPre\": \"-\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\",\n        \"posSuf\": \"\"\n      },\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 2,\n        \"minFrac\": 2,\n        \"minInt\": 1,\n        \"negPre\": \"-\\u00a4\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\\u00a4\",\n        \"posSuf\": \"\"\n      }\n    ]\n  },\n  \"id\": \"en-us\",\n  \"localeID\": \"en_US\",\n  \"pluralCat\": function(n, opt_precision) {  var i = n | 0;  var vf = getVF(n, opt_precision);  if (i == 1 && vf.v == 0) {    return PLURAL_CATEGORY.ONE;  }  return PLURAL_CATEGORY.OTHER;}\n});\n}]);\n\n  jqLite(window.document).ready(function() {\n    angularInit(window.document, bootstrap);\n  });\n\n})(window);\n\n!window.angular.$$csp().noInlineStyle && window.angular.element(document.head).prepend('<style type=\"text/css\">@charset \"UTF-8\";[ng\\\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');"
  },
  {
    "path": "test/angular/1.6/angular-animate.js",
    "content": "/**\n * @license AngularJS v1.6.10\n * (c) 2010-2018 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\nvar ELEMENT_NODE = 1;\nvar COMMENT_NODE = 8;\n\nvar ADD_CLASS_SUFFIX = '-add';\nvar REMOVE_CLASS_SUFFIX = '-remove';\nvar EVENT_CLASS_PREFIX = 'ng-';\nvar ACTIVE_CLASS_SUFFIX = '-active';\nvar PREPARE_CLASS_SUFFIX = '-prepare';\n\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\nvar NG_ANIMATE_CHILDREN_DATA = '$$ngAnimateChildren';\n\n// Detect proper transitionend/animationend event names.\nvar CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;\n\n// If unprefixed events are not supported but webkit-prefixed are, use the latter.\n// Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.\n// Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`\n// but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.\n// Register both events in case `window.onanimationend` is not supported because of that,\n// do the same for `transitionend` as Safari is likely to exhibit similar behavior.\n// Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit\n// therefore there is no reason to test anymore for other vendor prefixes:\n// http://caniuse.com/#search=transition\nif ((window.ontransitionend === undefined) && (window.onwebkittransitionend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  TRANSITION_PROP = 'WebkitTransition';\n  TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';\n} else {\n  TRANSITION_PROP = 'transition';\n  TRANSITIONEND_EVENT = 'transitionend';\n}\n\nif ((window.onanimationend === undefined) && (window.onwebkitanimationend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  ANIMATION_PROP = 'WebkitAnimation';\n  ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';\n} else {\n  ANIMATION_PROP = 'animation';\n  ANIMATIONEND_EVENT = 'animationend';\n}\n\nvar DURATION_KEY = 'Duration';\nvar PROPERTY_KEY = 'Property';\nvar DELAY_KEY = 'Delay';\nvar TIMING_KEY = 'TimingFunction';\nvar ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';\nvar ANIMATION_PLAYSTATE_KEY = 'PlayState';\nvar SAFE_FAST_FORWARD_DURATION_VALUE = 9999;\n\nvar ANIMATION_DELAY_PROP = ANIMATION_PROP + DELAY_KEY;\nvar ANIMATION_DURATION_PROP = ANIMATION_PROP + DURATION_KEY;\nvar TRANSITION_DELAY_PROP = TRANSITION_PROP + DELAY_KEY;\nvar TRANSITION_DURATION_PROP = TRANSITION_PROP + DURATION_KEY;\n\nvar ngMinErr = angular.$$minErr('ng');\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction packageStyles(options) {\n  var styles = {};\n  if (options && (options.to || options.from)) {\n    styles.to = options.to;\n    styles.from = options.from;\n  }\n  return styles;\n}\n\nfunction pendClasses(classes, fix, isPrefix) {\n  var className = '';\n  classes = isArray(classes)\n      ? classes\n      : classes && isString(classes) && classes.length\n          ? classes.split(/\\s+/)\n          : [];\n  forEach(classes, function(klass, i) {\n    if (klass && klass.length > 0) {\n      className += (i > 0) ? ' ' : '';\n      className += isPrefix ? fix + klass\n                            : klass + fix;\n    }\n  });\n  return className;\n}\n\nfunction removeFromArray(arr, val) {\n  var index = arr.indexOf(val);\n  if (val >= 0) {\n    arr.splice(index, 1);\n  }\n}\n\nfunction stripCommentsFromElement(element) {\n  if (element instanceof jqLite) {\n    switch (element.length) {\n      case 0:\n        return element;\n\n      case 1:\n        // there is no point of stripping anything if the element\n        // is the only element within the jqLite wrapper.\n        // (it's important that we retain the element instance.)\n        if (element[0].nodeType === ELEMENT_NODE) {\n          return element;\n        }\n        break;\n\n      default:\n        return jqLite(extractElementNode(element));\n    }\n  }\n\n  if (element.nodeType === ELEMENT_NODE) {\n    return jqLite(element);\n  }\n}\n\nfunction extractElementNode(element) {\n  if (!element[0]) return element;\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction $$addClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.addClass(elm, className);\n  });\n}\n\nfunction $$removeClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.removeClass(elm, className);\n  });\n}\n\nfunction applyAnimationClassesFactory($$jqLite) {\n  return function(element, options) {\n    if (options.addClass) {\n      $$addClass($$jqLite, element, options.addClass);\n      options.addClass = null;\n    }\n    if (options.removeClass) {\n      $$removeClass($$jqLite, element, options.removeClass);\n      options.removeClass = null;\n    }\n  };\n}\n\nfunction prepareAnimationOptions(options) {\n  options = options || {};\n  if (!options.$$prepared) {\n    var domOperation = options.domOperation || noop;\n    options.domOperation = function() {\n      options.$$domOperationFired = true;\n      domOperation();\n      domOperation = noop;\n    };\n    options.$$prepared = true;\n  }\n  return options;\n}\n\nfunction applyAnimationStyles(element, options) {\n  applyAnimationFromStyles(element, options);\n  applyAnimationToStyles(element, options);\n}\n\nfunction applyAnimationFromStyles(element, options) {\n  if (options.from) {\n    element.css(options.from);\n    options.from = null;\n  }\n}\n\nfunction applyAnimationToStyles(element, options) {\n  if (options.to) {\n    element.css(options.to);\n    options.to = null;\n  }\n}\n\nfunction mergeAnimationDetails(element, oldAnimation, newAnimation) {\n  var target = oldAnimation.options || {};\n  var newOptions = newAnimation.options || {};\n\n  var toAdd = (target.addClass || '') + ' ' + (newOptions.addClass || '');\n  var toRemove = (target.removeClass || '') + ' ' + (newOptions.removeClass || '');\n  var classes = resolveElementClasses(element.attr('class'), toAdd, toRemove);\n\n  if (newOptions.preparationClasses) {\n    target.preparationClasses = concatWithSpace(newOptions.preparationClasses, target.preparationClasses);\n    delete newOptions.preparationClasses;\n  }\n\n  // noop is basically when there is no callback; otherwise something has been set\n  var realDomOperation = target.domOperation !== noop ? target.domOperation : null;\n\n  extend(target, newOptions);\n\n  // TODO(matsko or sreeramu): proper fix is to maintain all animation callback in array and call at last,but now only leave has the callback so no issue with this.\n  if (realDomOperation) {\n    target.domOperation = realDomOperation;\n  }\n\n  if (classes.addClass) {\n    target.addClass = classes.addClass;\n  } else {\n    target.addClass = null;\n  }\n\n  if (classes.removeClass) {\n    target.removeClass = classes.removeClass;\n  } else {\n    target.removeClass = null;\n  }\n\n  oldAnimation.addClass = target.addClass;\n  oldAnimation.removeClass = target.removeClass;\n\n  return target;\n}\n\nfunction resolveElementClasses(existing, toAdd, toRemove) {\n  var ADD_CLASS = 1;\n  var REMOVE_CLASS = -1;\n\n  var flags = {};\n  existing = splitClassesToLookup(existing);\n\n  toAdd = splitClassesToLookup(toAdd);\n  forEach(toAdd, function(value, key) {\n    flags[key] = ADD_CLASS;\n  });\n\n  toRemove = splitClassesToLookup(toRemove);\n  forEach(toRemove, function(value, key) {\n    flags[key] = flags[key] === ADD_CLASS ? null : REMOVE_CLASS;\n  });\n\n  var classes = {\n    addClass: '',\n    removeClass: ''\n  };\n\n  forEach(flags, function(val, klass) {\n    var prop, allow;\n    if (val === ADD_CLASS) {\n      prop = 'addClass';\n      allow = !existing[klass] || existing[klass + REMOVE_CLASS_SUFFIX];\n    } else if (val === REMOVE_CLASS) {\n      prop = 'removeClass';\n      allow = existing[klass] || existing[klass + ADD_CLASS_SUFFIX];\n    }\n    if (allow) {\n      if (classes[prop].length) {\n        classes[prop] += ' ';\n      }\n      classes[prop] += klass;\n    }\n  });\n\n  function splitClassesToLookup(classes) {\n    if (isString(classes)) {\n      classes = classes.split(' ');\n    }\n\n    var obj = {};\n    forEach(classes, function(klass) {\n      // sometimes the split leaves empty string values\n      // incase extra spaces were applied to the options\n      if (klass.length) {\n        obj[klass] = true;\n      }\n    });\n    return obj;\n  }\n\n  return classes;\n}\n\nfunction getDomNode(element) {\n  return (element instanceof jqLite) ? element[0] : element;\n}\n\nfunction applyGeneratedPreparationClasses(element, event, options) {\n  var classes = '';\n  if (event) {\n    classes = pendClasses(event, EVENT_CLASS_PREFIX, true);\n  }\n  if (options.addClass) {\n    classes = concatWithSpace(classes, pendClasses(options.addClass, ADD_CLASS_SUFFIX));\n  }\n  if (options.removeClass) {\n    classes = concatWithSpace(classes, pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX));\n  }\n  if (classes.length) {\n    options.preparationClasses = classes;\n    element.addClass(classes);\n  }\n}\n\nfunction clearGeneratedClasses(element, options) {\n  if (options.preparationClasses) {\n    element.removeClass(options.preparationClasses);\n    options.preparationClasses = null;\n  }\n  if (options.activeClasses) {\n    element.removeClass(options.activeClasses);\n    options.activeClasses = null;\n  }\n}\n\nfunction blockTransitions(node, duration) {\n  // we use a negative delay value since it performs blocking\n  // yet it doesn't kill any existing transitions running on the\n  // same element which makes this safe for class-based animations\n  var value = duration ? '-' + duration + 's' : '';\n  applyInlineStyle(node, [TRANSITION_DELAY_PROP, value]);\n  return [TRANSITION_DELAY_PROP, value];\n}\n\nfunction blockKeyframeAnimations(node, applyBlock) {\n  var value = applyBlock ? 'paused' : '';\n  var key = ANIMATION_PROP + ANIMATION_PLAYSTATE_KEY;\n  applyInlineStyle(node, [key, value]);\n  return [key, value];\n}\n\nfunction applyInlineStyle(node, styleTuple) {\n  var prop = styleTuple[0];\n  var value = styleTuple[1];\n  node.style[prop] = value;\n}\n\nfunction concatWithSpace(a,b) {\n  if (!a) return b;\n  if (!b) return a;\n  return a + ' ' + b;\n}\n\nvar $$rAFSchedulerFactory = ['$$rAF', function($$rAF) {\n  var queue, cancelFn;\n\n  function scheduler(tasks) {\n    // we make a copy since RAFScheduler mutates the state\n    // of the passed in array variable and this would be difficult\n    // to track down on the outside code\n    queue = queue.concat(tasks);\n    nextTick();\n  }\n\n  queue = scheduler.queue = [];\n\n  /* waitUntilQuiet does two things:\n   * 1. It will run the FINAL `fn` value only when an uncanceled RAF has passed through\n   * 2. It will delay the next wave of tasks from running until the quiet `fn` has run.\n   *\n   * The motivation here is that animation code can request more time from the scheduler\n   * before the next wave runs. This allows for certain DOM properties such as classes to\n   * be resolved in time for the next animation to run.\n   */\n  scheduler.waitUntilQuiet = function(fn) {\n    if (cancelFn) cancelFn();\n\n    cancelFn = $$rAF(function() {\n      cancelFn = null;\n      fn();\n      nextTick();\n    });\n  };\n\n  return scheduler;\n\n  function nextTick() {\n    if (!queue.length) return;\n\n    var items = queue.shift();\n    for (var i = 0; i < items.length; i++) {\n      items[i]();\n    }\n\n    if (!cancelFn) {\n      $$rAF(function() {\n        if (!cancelFn) nextTick();\n      });\n    }\n  }\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateChildren\n * @restrict AE\n * @element ANY\n *\n * @description\n *\n * ngAnimateChildren allows you to specify that children of this element should animate even if any\n * of the children's parents are currently animating. By default, when an element has an active `enter`, `leave`, or `move`\n * (structural) animation, child elements that also have an active structural animation are not animated.\n *\n * Note that even if `ngAnimateChildren` is set, no child animations will run when the parent element is removed from the DOM (`leave` animation).\n *\n *\n * @param {string} ngAnimateChildren If the value is empty, `true` or `on`,\n *     then child animations are allowed. If the value is `false`, child animations are not allowed.\n *\n * @example\n * <example module=\"ngAnimateChildren\" name=\"ngAnimateChildren\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainController as main\">\n         <label>Show container? <input type=\"checkbox\" ng-model=\"main.enterElement\" /></label>\n         <label>Animate children? <input type=\"checkbox\" ng-model=\"main.animateChildren\" /></label>\n         <hr>\n         <div ng-animate-children=\"{{main.animateChildren}}\">\n           <div ng-if=\"main.enterElement\" class=\"container\">\n             List of items:\n             <div ng-repeat=\"item in [0, 1, 2, 3]\" class=\"item\">Item {{item}}</div>\n           </div>\n         </div>\n       </div>\n     </file>\n     <file name=\"animations.css\">\n\n      .container.ng-enter,\n      .container.ng-leave {\n        transition: all ease 1.5s;\n      }\n\n      .container.ng-enter,\n      .container.ng-leave-active {\n        opacity: 0;\n      }\n\n      .container.ng-leave,\n      .container.ng-enter-active {\n        opacity: 1;\n      }\n\n      .item {\n        background: firebrick;\n        color: #FFF;\n        margin-bottom: 10px;\n      }\n\n      .item.ng-enter,\n      .item.ng-leave {\n        transition: transform 1.5s ease;\n      }\n\n      .item.ng-enter {\n        transform: translateX(50px);\n      }\n\n      .item.ng-enter-active {\n        transform: translateX(0);\n      }\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngAnimateChildren', ['ngAnimate'])\n        .controller('MainController', function MainController() {\n          this.animateChildren = false;\n          this.enterElement = false;\n        });\n    </file>\n  </example>\n */\nvar $$AnimateChildrenDirective = ['$interpolate', function($interpolate) {\n  return {\n    link: function(scope, element, attrs) {\n      var val = attrs.ngAnimateChildren;\n      if (isString(val) && val.length === 0) { //empty attribute\n        element.data(NG_ANIMATE_CHILDREN_DATA, true);\n      } else {\n        // Interpolate and set the value, so that it is available to\n        // animations that run right after compilation\n        setData($interpolate(val)(scope));\n        attrs.$observe('ngAnimateChildren', setData);\n      }\n\n      function setData(value) {\n        value = value === 'on' || value === 'true';\n        element.data(NG_ANIMATE_CHILDREN_DATA, value);\n      }\n    }\n  };\n}];\n\n/* exported $AnimateCssProvider */\n\nvar ANIMATE_TIMER_KEY = '$$animateCss';\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n *\n * @description\n * The `$animateCss` service is a useful utility to trigger customized CSS-based transitions/keyframes\n * from a JavaScript-based animation or directly from a directive. The purpose of `$animateCss` is NOT\n * to side-step how `$animate` and ngAnimate work, but the goal is to allow pre-existing animations or\n * directives to create more complex animations that can be purely driven using CSS code.\n *\n * Note that only browsers that support CSS transitions and/or keyframe animations are capable of\n * rendering animations triggered via `$animateCss` (bad news for IE9 and lower).\n *\n * ## General Use\n * Once again, `$animateCss` is designed to be used inside of a registered JavaScript animation that\n * is powered by ngAnimate. It is possible to use `$animateCss` directly inside of a directive, however,\n * any automatic control over cancelling animations and/or preventing animations from being run on\n * child elements will not be handled by AngularJS. For this to work as expected, please use `$animate` to\n * trigger the animation and then setup a JavaScript animation that injects `$animateCss` to trigger\n * the CSS animation.\n *\n * The example below shows how we can create a folding animation on an element using `ng-if`:\n *\n * ```html\n * <!-- notice the `fold-animation` CSS class -->\n * <div ng-if=\"onOff\" class=\"fold-animation\">\n *   This element will go BOOM\n * </div>\n * <button ng-click=\"onOff=true\">Fold In</button>\n * ```\n *\n * Now we create the **JavaScript animation** that will trigger the CSS transition:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * ## More Advanced Uses\n *\n * `$animateCss` is the underlying code that ngAnimate uses to power **CSS-based animations** behind the scenes. Therefore CSS hooks\n * like `.ng-EVENT`, `.ng-EVENT-active`, `.ng-EVENT-stagger` are all features that can be triggered using `$animateCss` via JavaScript code.\n *\n * This also means that just about any combination of adding classes, removing classes, setting styles, dynamically setting a keyframe animation,\n * applying a hardcoded duration or delay value, changing the animation easing or applying a stagger animation are all options that work with\n * `$animateCss`. The service itself is smart enough to figure out the combination of options and examine the element styling properties in order\n * to provide a working animation that will run in CSS.\n *\n * The example below showcases a more advanced version of the `.fold-animation` from the example above:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         addClass: 'red large-text pulse-twice',\n *         easing: 'ease-out',\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Since we're adding/removing CSS classes then the CSS transition will also pick those up:\n *\n * ```css\n * /&#42; since a hardcoded duration value of 1 was provided in the JavaScript animation code,\n * the CSS classes below will be transitioned despite them being defined as regular CSS classes &#42;/\n * .red { background:red; }\n * .large-text { font-size:20px; }\n *\n * /&#42; we can also use a keyframe animation and $animateCss will make it work alongside the transition &#42;/\n * .pulse-twice {\n *   animation: 0.5s pulse linear 2;\n *   -webkit-animation: 0.5s pulse linear 2;\n * }\n *\n * @keyframes pulse {\n *   from { transform: scale(0.5); }\n *   to { transform: scale(1.5); }\n * }\n *\n * @-webkit-keyframes pulse {\n *   from { -webkit-transform: scale(0.5); }\n *   to { -webkit-transform: scale(1.5); }\n * }\n * ```\n *\n * Given this complex combination of CSS classes, styles and options, `$animateCss` will figure everything out and make the animation happen.\n *\n * ## How the Options are handled\n *\n * `$animateCss` is very versatile and intelligent when it comes to figuring out what configurations to apply to the element to ensure the animation\n * works with the options provided. Say for example we were adding a class that contained a keyframe value and we wanted to also animate some inline\n * styles using the `from` and `to` properties.\n *\n * ```js\n * var animator = $animateCss(element, {\n *   from: { background:'red' },\n *   to: { background:'blue' }\n * });\n * animator.start();\n * ```\n *\n * ```css\n * .rotating-animation {\n *   animation:0.5s rotate linear;\n *   -webkit-animation:0.5s rotate linear;\n * }\n *\n * @keyframes rotate {\n *   from { transform: rotate(0deg); }\n *   to { transform: rotate(360deg); }\n * }\n *\n * @-webkit-keyframes rotate {\n *   from { -webkit-transform: rotate(0deg); }\n *   to { -webkit-transform: rotate(360deg); }\n * }\n * ```\n *\n * The missing pieces here are that we do not have a transition set (within the CSS code nor within the `$animateCss` options) and the duration of the animation is\n * going to be detected from what the keyframe styles on the CSS class are. In this event, `$animateCss` will automatically create an inline transition\n * style matching the duration detected from the keyframe style (which is present in the CSS class that is being added) and then prepare both the transition\n * and keyframe animations to run in parallel on the element. Then when the animation is underway the provided `from` and `to` CSS styles will be applied\n * and spread across the transition and keyframe animation.\n *\n * ## What is returned\n *\n * `$animateCss` works in two stages: a preparation phase and an animation phase. Therefore when `$animateCss` is first called it will NOT actually\n * start the animation. All that is going on here is that the element is being prepared for the animation (which means that the generated CSS classes are\n * added and removed on the element). Once `$animateCss` is called it will return an object with the following properties:\n *\n * ```js\n * var animator = $animateCss(element, { ... });\n * ```\n *\n * Now what do the contents of our `animator` variable look like:\n *\n * ```js\n * {\n *   // starts the animation\n *   start: Function,\n *\n *   // ends (aborts) the animation\n *   end: Function\n * }\n * ```\n *\n * To actually start the animation we need to run `animation.start()` which will then return a promise that we can hook into to detect when the animation ends.\n * If we choose not to run the animation then we MUST run `animation.end()` to perform a cleanup on the element (since some CSS classes and styles may have been\n * applied to the element during the preparation phase). Note that all other properties such as duration, delay, transitions and keyframes are just properties\n * and that changing them will not reconfigure the parameters of the animation.\n *\n * ### runner.done() vs runner.then()\n * It is documented that `animation.start()` will return a promise object and this is true, however, there is also an additional method available on the\n * runner called `.done(callbackFn)`. The done method works the same as `.finally(callbackFn)`, however, it does **not trigger a digest to occur**.\n * Therefore, for performance reasons, it's always best to use `runner.done(callback)` instead of `runner.then()`, `runner.catch()` or `runner.finally()`\n * unless you really need a digest to kick off afterwards.\n *\n * Keep in mind that, to make this easier, ngAnimate has tweaked the JS animations API to recognize when a runner instance is returned from $animateCss\n * (so there is no need to call `runner.done(doneFn)` inside of your JavaScript animation code).\n * Check the {@link ngAnimate.$animateCss#usage animation code above} to see how this works.\n *\n * @param {DOMElement} element the element that will be animated\n * @param {object} options the animation-related options that will be applied during the animation\n *\n * * `event` - The DOM event (e.g. enter, leave, move). When used, a generated CSS class of `ng-EVENT` and `ng-EVENT-active` will be applied\n * to the element during the animation. Multiple events can be provided when spaces are used as a separator. (Note that this will not perform any DOM operation.)\n * * `structural` - Indicates that the `ng-` prefix will be added to the event class. Setting to `false` or omitting will turn `ng-EVENT` and\n * `ng-EVENT-active` in `EVENT` and `EVENT-active`. Unused if `event` is omitted.\n * * `easing` - The CSS easing value that will be applied to the transition or keyframe animation (or both).\n * * `transitionStyle` - The raw CSS transition style that will be used (e.g. `1s linear all`).\n * * `keyframeStyle` - The raw CSS keyframe animation style that will be used (e.g. `1s my_animation linear`).\n * * `from` - The starting CSS styles (a key/value object) that will be applied at the start of the animation.\n * * `to` - The ending CSS styles (a key/value object) that will be applied across the animation via a CSS transition.\n * * `addClass` - A space separated list of CSS classes that will be added to the element and spread across the animation.\n * * `removeClass` - A space separated list of CSS classes that will be removed from the element and spread across the animation.\n * * `duration` - A number value representing the total duration of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `0`\n * is provided then the animation will be skipped entirely.\n * * `delay` - A number value representing the total delay of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `true` is\n * used then whatever delay value is detected from the CSS classes will be mirrored on the elements styles (e.g. by setting delay true then the style value\n * of the element will be `transition-delay: DETECTED_VALUE`). Using `true` is useful when you want the CSS classes and inline styles to all share the same\n * CSS delay value.\n * * `stagger` - A numeric time value representing the delay between successively animated elements\n * ({@link ngAnimate#css-staggering-animations Click here to learn how CSS-based staggering works in ngAnimate.})\n * * `staggerIndex` - The numeric index representing the stagger item (e.g. a value of 5 is equal to the sixth item in the stagger; therefore when a\n *   `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)\n * * `applyClassesEarly` - Whether or not the classes being added or removed will be used when detecting the animation. This is set by `$animate` when enter/leave/move animations are fired to ensure that the CSS classes are resolved in time. (Note that this will prevent any transitions from occurring on the classes being added and removed.)\n * * `cleanupStyles` - Whether or not the provided `from` and `to` styles will be removed once\n *    the animation is closed. This is useful for when the styles are used purely for the sake of\n *    the animation and do not have a lasting visual effect on the element (e.g. a collapse and open animation).\n *    By default this value is set to `false`.\n *\n * @return {object} an object with start and end methods and details about the animation.\n *\n * * `start` - The method to start the animation. This will return a `Promise` when called.\n * * `end` - This method will cancel the animation and remove all applied CSS classes and styles.\n */\nvar ONE_SECOND = 1000;\n\nvar ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\nvar CLOSING_TIME_BUFFER = 1.5;\n\nvar DETECT_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  transitionProperty:      TRANSITION_PROP + PROPERTY_KEY,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP,\n  animationIterationCount: ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY\n};\n\nvar DETECT_STAGGER_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP\n};\n\nfunction getCssKeyframeDurationStyle(duration) {\n  return [ANIMATION_DURATION_PROP, duration + 's'];\n}\n\nfunction getCssDelayStyle(delay, isKeyframeAnimation) {\n  var prop = isKeyframeAnimation ? ANIMATION_DELAY_PROP : TRANSITION_DELAY_PROP;\n  return [prop, delay + 's'];\n}\n\nfunction computeCssStyles($window, element, properties) {\n  var styles = Object.create(null);\n  var detectedStyles = $window.getComputedStyle(element) || {};\n  forEach(properties, function(formalStyleName, actualStyleName) {\n    var val = detectedStyles[formalStyleName];\n    if (val) {\n      var c = val.charAt(0);\n\n      // only numerical-based values have a negative sign or digit as the first value\n      if (c === '-' || c === '+' || c >= 0) {\n        val = parseMaxTime(val);\n      }\n\n      // by setting this to null in the event that the delay is not set or is set directly as 0\n      // then we can still allow for negative values to be used later on and not mistake this\n      // value for being greater than any other negative value.\n      if (val === 0) {\n        val = null;\n      }\n      styles[actualStyleName] = val;\n    }\n  });\n\n  return styles;\n}\n\nfunction parseMaxTime(str) {\n  var maxValue = 0;\n  var values = str.split(/\\s*,\\s*/);\n  forEach(values, function(value) {\n    // it's always safe to consider only second values and omit `ms` values since\n    // getComputedStyle will always handle the conversion for us\n    if (value.charAt(value.length - 1) === 's') {\n      value = value.substring(0, value.length - 1);\n    }\n    value = parseFloat(value) || 0;\n    maxValue = maxValue ? Math.max(value, maxValue) : value;\n  });\n  return maxValue;\n}\n\nfunction truthyTimingValue(val) {\n  return val === 0 || val != null;\n}\n\nfunction getCssTransitionDurationStyle(duration, applyOnlyDuration) {\n  var style = TRANSITION_PROP;\n  var value = duration + 's';\n  if (applyOnlyDuration) {\n    style += DURATION_KEY;\n  } else {\n    value += ' linear all';\n  }\n  return [style, value];\n}\n\nfunction createLocalCacheLookup() {\n  var cache = Object.create(null);\n  return {\n    flush: function() {\n      cache = Object.create(null);\n    },\n\n    count: function(key) {\n      var entry = cache[key];\n      return entry ? entry.total : 0;\n    },\n\n    get: function(key) {\n      var entry = cache[key];\n      return entry && entry.value;\n    },\n\n    put: function(key, value) {\n      if (!cache[key]) {\n        cache[key] = { total: 1, value: value };\n      } else {\n        cache[key].total++;\n      }\n    }\n  };\n}\n\n// we do not reassign an already present style value since\n// if we detect the style property value again we may be\n// detecting styles that were added via the `from` styles.\n// We make use of `isDefined` here since an empty string\n// or null value (which is what getPropertyValue will return\n// for a non-existing style) will still be marked as a valid\n// value for the style (a falsy value implies that the style\n// is to be removed at the end of the animation). If we had a simple\n// \"OR\" statement then it would not be enough to catch that.\nfunction registerRestorableStyles(backup, node, properties) {\n  forEach(properties, function(prop) {\n    backup[prop] = isDefined(backup[prop])\n        ? backup[prop]\n        : node.style.getPropertyValue(prop);\n  });\n}\n\nvar $AnimateCssProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var gcsLookup = createLocalCacheLookup();\n  var gcsStaggerLookup = createLocalCacheLookup();\n\n  this.$get = ['$window', '$$jqLite', '$$AnimateRunner', '$timeout',\n               '$$forceReflow', '$sniffer', '$$rAFScheduler', '$$animateQueue',\n       function($window,   $$jqLite,   $$AnimateRunner,   $timeout,\n                $$forceReflow,   $sniffer,   $$rAFScheduler, $$animateQueue) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    var parentCounter = 0;\n    function gcsHashFn(node, extraClasses) {\n      var KEY = '$$ngAnimateParentKey';\n      var parentNode = node.parentNode;\n      var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);\n      return parentID + '-' + node.getAttribute('class') + '-' + extraClasses;\n    }\n\n    function computeCachedCssStyles(node, className, cacheKey, properties) {\n      var timings = gcsLookup.get(cacheKey);\n\n      if (!timings) {\n        timings = computeCssStyles($window, node, properties);\n        if (timings.animationIterationCount === 'infinite') {\n          timings.animationIterationCount = 1;\n        }\n      }\n\n      // we keep putting this in multiple times even though the value and the cacheKey are the same\n      // because we're keeping an internal tally of how many duplicate animations are detected.\n      gcsLookup.put(cacheKey, timings);\n      return timings;\n    }\n\n    function computeCachedCssStaggerStyles(node, className, cacheKey, properties) {\n      var stagger;\n\n      // if we have one or more existing matches of matching elements\n      // containing the same parent + CSS styles (which is how cacheKey works)\n      // then staggering is possible\n      if (gcsLookup.count(cacheKey) > 0) {\n        stagger = gcsStaggerLookup.get(cacheKey);\n\n        if (!stagger) {\n          var staggerClassName = pendClasses(className, '-stagger');\n\n          $$jqLite.addClass(node, staggerClassName);\n\n          stagger = computeCssStyles($window, node, properties);\n\n          // force the conversion of a null value to zero incase not set\n          stagger.animationDuration = Math.max(stagger.animationDuration, 0);\n          stagger.transitionDuration = Math.max(stagger.transitionDuration, 0);\n\n          $$jqLite.removeClass(node, staggerClassName);\n\n          gcsStaggerLookup.put(cacheKey, stagger);\n        }\n      }\n\n      return stagger || {};\n    }\n\n    var rafWaitQueue = [];\n    function waitUntilQuiet(callback) {\n      rafWaitQueue.push(callback);\n      $$rAFScheduler.waitUntilQuiet(function() {\n        gcsLookup.flush();\n        gcsStaggerLookup.flush();\n\n        // DO NOT REMOVE THIS LINE OR REFACTOR OUT THE `pageWidth` variable.\n        // PLEASE EXAMINE THE `$$forceReflow` service to understand why.\n        var pageWidth = $$forceReflow();\n\n        // we use a for loop to ensure that if the queue is changed\n        // during this looping then it will consider new requests\n        for (var i = 0; i < rafWaitQueue.length; i++) {\n          rafWaitQueue[i](pageWidth);\n        }\n        rafWaitQueue.length = 0;\n      });\n    }\n\n    function computeTimings(node, className, cacheKey) {\n      var timings = computeCachedCssStyles(node, className, cacheKey, DETECT_CSS_PROPERTIES);\n      var aD = timings.animationDelay;\n      var tD = timings.transitionDelay;\n      timings.maxDelay = aD && tD\n          ? Math.max(aD, tD)\n          : (aD || tD);\n      timings.maxDuration = Math.max(\n          timings.animationDuration * timings.animationIterationCount,\n          timings.transitionDuration);\n\n      return timings;\n    }\n\n    return function init(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = prepareAnimationOptions(copy(options));\n      }\n\n      var restoreStyles = {};\n      var node = getDomNode(element);\n      if (!node\n          || !node.parentNode\n          || !$$animateQueue.enabled()) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var temporaryStyles = [];\n      var classes = element.attr('class');\n      var styles = packageStyles(options);\n      var animationClosed;\n      var animationPaused;\n      var animationCompleted;\n      var runner;\n      var runnerHost;\n      var maxDelay;\n      var maxDelayTime;\n      var maxDuration;\n      var maxDurationTime;\n      var startTime;\n      var events = [];\n\n      if (options.duration === 0 || (!$sniffer.animations && !$sniffer.transitions)) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var method = options.event && isArray(options.event)\n            ? options.event.join(' ')\n            : options.event;\n\n      var isStructural = method && options.structural;\n      var structuralClassName = '';\n      var addRemoveClassName = '';\n\n      if (isStructural) {\n        structuralClassName = pendClasses(method, EVENT_CLASS_PREFIX, true);\n      } else if (method) {\n        structuralClassName = method;\n      }\n\n      if (options.addClass) {\n        addRemoveClassName += pendClasses(options.addClass, ADD_CLASS_SUFFIX);\n      }\n\n      if (options.removeClass) {\n        if (addRemoveClassName.length) {\n          addRemoveClassName += ' ';\n        }\n        addRemoveClassName += pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX);\n      }\n\n      // there may be a situation where a structural animation is combined together\n      // with CSS classes that need to resolve before the animation is computed.\n      // However this means that there is no explicit CSS code to block the animation\n      // from happening (by setting 0s none in the class name). If this is the case\n      // we need to apply the classes before the first rAF so we know to continue if\n      // there actually is a detected transition or keyframe animation\n      if (options.applyClassesEarly && addRemoveClassName.length) {\n        applyAnimationClasses(element, options);\n      }\n\n      var preparationClasses = [structuralClassName, addRemoveClassName].join(' ').trim();\n      var fullClassName = classes + ' ' + preparationClasses;\n      var activeClasses = pendClasses(preparationClasses, ACTIVE_CLASS_SUFFIX);\n      var hasToStyles = styles.to && Object.keys(styles.to).length > 0;\n      var containsKeyframeAnimation = (options.keyframeStyle || '').length > 0;\n\n      // there is no way we can trigger an animation if no styles and\n      // no classes are being applied which would then trigger a transition,\n      // unless there a is raw keyframe value that is applied to the element.\n      if (!containsKeyframeAnimation\n           && !hasToStyles\n           && !preparationClasses) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var cacheKey, stagger;\n      if (options.stagger > 0) {\n        var staggerVal = parseFloat(options.stagger);\n        stagger = {\n          transitionDelay: staggerVal,\n          animationDelay: staggerVal,\n          transitionDuration: 0,\n          animationDuration: 0\n        };\n      } else {\n        cacheKey = gcsHashFn(node, fullClassName);\n        stagger = computeCachedCssStaggerStyles(node, preparationClasses, cacheKey, DETECT_STAGGER_CSS_PROPERTIES);\n      }\n\n      if (!options.$$skipPreparationClasses) {\n        $$jqLite.addClass(element, preparationClasses);\n      }\n\n      var applyOnlyDuration;\n\n      if (options.transitionStyle) {\n        var transitionStyle = [TRANSITION_PROP, options.transitionStyle];\n        applyInlineStyle(node, transitionStyle);\n        temporaryStyles.push(transitionStyle);\n      }\n\n      if (options.duration >= 0) {\n        applyOnlyDuration = node.style[TRANSITION_PROP].length > 0;\n        var durationStyle = getCssTransitionDurationStyle(options.duration, applyOnlyDuration);\n\n        // we set the duration so that it will be picked up by getComputedStyle later\n        applyInlineStyle(node, durationStyle);\n        temporaryStyles.push(durationStyle);\n      }\n\n      if (options.keyframeStyle) {\n        var keyframeStyle = [ANIMATION_PROP, options.keyframeStyle];\n        applyInlineStyle(node, keyframeStyle);\n        temporaryStyles.push(keyframeStyle);\n      }\n\n      var itemIndex = stagger\n          ? options.staggerIndex >= 0\n              ? options.staggerIndex\n              : gcsLookup.count(cacheKey)\n          : 0;\n\n      var isFirst = itemIndex === 0;\n\n      // this is a pre-emptive way of forcing the setup classes to be added and applied INSTANTLY\n      // without causing any combination of transitions to kick in. By adding a negative delay value\n      // it forces the setup class' transition to end immediately. We later then remove the negative\n      // transition delay to allow for the transition to naturally do it's thing. The beauty here is\n      // that if there is no transition defined then nothing will happen and this will also allow\n      // other transitions to be stacked on top of each other without any chopping them out.\n      if (isFirst && !options.skipBlocking) {\n        blockTransitions(node, SAFE_FAST_FORWARD_DURATION_VALUE);\n      }\n\n      var timings = computeTimings(node, fullClassName, cacheKey);\n      var relativeDelay = timings.maxDelay;\n      maxDelay = Math.max(relativeDelay, 0);\n      maxDuration = timings.maxDuration;\n\n      var flags = {};\n      flags.hasTransitions          = timings.transitionDuration > 0;\n      flags.hasAnimations           = timings.animationDuration > 0;\n      flags.hasTransitionAll        = flags.hasTransitions && timings.transitionProperty === 'all';\n      flags.applyTransitionDuration = hasToStyles && (\n                                        (flags.hasTransitions && !flags.hasTransitionAll)\n                                         || (flags.hasAnimations && !flags.hasTransitions));\n      flags.applyAnimationDuration  = options.duration && flags.hasAnimations;\n      flags.applyTransitionDelay    = truthyTimingValue(options.delay) && (flags.applyTransitionDuration || flags.hasTransitions);\n      flags.applyAnimationDelay     = truthyTimingValue(options.delay) && flags.hasAnimations;\n      flags.recalculateTimingStyles = addRemoveClassName.length > 0;\n\n      if (flags.applyTransitionDuration || flags.applyAnimationDuration) {\n        maxDuration = options.duration ? parseFloat(options.duration) : maxDuration;\n\n        if (flags.applyTransitionDuration) {\n          flags.hasTransitions = true;\n          timings.transitionDuration = maxDuration;\n          applyOnlyDuration = node.style[TRANSITION_PROP + PROPERTY_KEY].length > 0;\n          temporaryStyles.push(getCssTransitionDurationStyle(maxDuration, applyOnlyDuration));\n        }\n\n        if (flags.applyAnimationDuration) {\n          flags.hasAnimations = true;\n          timings.animationDuration = maxDuration;\n          temporaryStyles.push(getCssKeyframeDurationStyle(maxDuration));\n        }\n      }\n\n      if (maxDuration === 0 && !flags.recalculateTimingStyles) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      if (options.delay != null) {\n        var delayStyle;\n        if (typeof options.delay !== 'boolean') {\n          delayStyle = parseFloat(options.delay);\n          // number in options.delay means we have to recalculate the delay for the closing timeout\n          maxDelay = Math.max(delayStyle, 0);\n        }\n\n        if (flags.applyTransitionDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle));\n        }\n\n        if (flags.applyAnimationDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle, true));\n        }\n      }\n\n      // we need to recalculate the delay value since we used a pre-emptive negative\n      // delay value and the delay value is required for the final event checking. This\n      // property will ensure that this will happen after the RAF phase has passed.\n      if (options.duration == null && timings.transitionDuration > 0) {\n        flags.recalculateTimingStyles = flags.recalculateTimingStyles || isFirst;\n      }\n\n      maxDelayTime = maxDelay * ONE_SECOND;\n      maxDurationTime = maxDuration * ONE_SECOND;\n      if (!options.skipBlocking) {\n        flags.blockTransition = timings.transitionDuration > 0;\n        flags.blockKeyframeAnimation = timings.animationDuration > 0 &&\n                                       stagger.animationDelay > 0 &&\n                                       stagger.animationDuration === 0;\n      }\n\n      if (options.from) {\n        if (options.cleanupStyles) {\n          registerRestorableStyles(restoreStyles, node, Object.keys(options.from));\n        }\n        applyAnimationFromStyles(element, options);\n      }\n\n      if (flags.blockTransition || flags.blockKeyframeAnimation) {\n        applyBlocking(maxDuration);\n      } else if (!options.skipBlocking) {\n        blockTransitions(node, false);\n      }\n\n      // TODO(matsko): for 1.5 change this code to have an animator object for better debugging\n      return {\n        $$willAnimate: true,\n        end: endFn,\n        start: function() {\n          if (animationClosed) return;\n\n          runnerHost = {\n            end: endFn,\n            cancel: cancelFn,\n            resume: null, //this will be set during the start() phase\n            pause: null\n          };\n\n          runner = new $$AnimateRunner(runnerHost);\n\n          waitUntilQuiet(start);\n\n          // we don't have access to pause/resume the animation\n          // since it hasn't run yet. AnimateRunner will therefore\n          // set noop functions for resume and pause and they will\n          // later be overridden once the animation is triggered\n          return runner;\n        }\n      };\n\n      function endFn() {\n        close();\n      }\n\n      function cancelFn() {\n        close(true);\n      }\n\n      function close(rejected) {\n        // if the promise has been called already then we shouldn't close\n        // the animation again\n        if (animationClosed || (animationCompleted && animationPaused)) return;\n        animationClosed = true;\n        animationPaused = false;\n\n        if (!options.$$skipPreparationClasses) {\n          $$jqLite.removeClass(element, preparationClasses);\n        }\n        $$jqLite.removeClass(element, activeClasses);\n\n        blockKeyframeAnimations(node, false);\n        blockTransitions(node, false);\n\n        forEach(temporaryStyles, function(entry) {\n          // There is only one way to remove inline style properties entirely from elements.\n          // By using `removeProperty` this works, but we need to convert camel-cased CSS\n          // styles down to hyphenated values.\n          node.style[entry[0]] = '';\n        });\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n\n        if (Object.keys(restoreStyles).length) {\n          forEach(restoreStyles, function(value, prop) {\n            if (value) {\n              node.style.setProperty(prop, value);\n            } else {\n              node.style.removeProperty(prop);\n            }\n          });\n        }\n\n        // the reason why we have this option is to allow a synchronous closing callback\n        // that is fired as SOON as the animation ends (when the CSS is removed) or if\n        // the animation never takes off at all. A good example is a leave animation since\n        // the element must be removed just after the animation is over or else the element\n        // will appear on screen for one animation frame causing an overbearing flicker.\n        if (options.onDone) {\n          options.onDone();\n        }\n\n        if (events && events.length) {\n          // Remove the transitionend / animationend listener(s)\n          element.off(events.join(' '), onAnimationProgress);\n        }\n\n        //Cancel the fallback closing timeout and remove the timer data\n        var animationTimerData = element.data(ANIMATE_TIMER_KEY);\n        if (animationTimerData) {\n          $timeout.cancel(animationTimerData[0].timer);\n          element.removeData(ANIMATE_TIMER_KEY);\n        }\n\n        // if the preparation function fails then the promise is not setup\n        if (runner) {\n          runner.complete(!rejected);\n        }\n      }\n\n      function applyBlocking(duration) {\n        if (flags.blockTransition) {\n          blockTransitions(node, duration);\n        }\n\n        if (flags.blockKeyframeAnimation) {\n          blockKeyframeAnimations(node, !!duration);\n        }\n      }\n\n      function closeAndReturnNoopAnimator() {\n        runner = new $$AnimateRunner({\n          end: endFn,\n          cancel: cancelFn\n        });\n\n        // should flush the cache animation\n        waitUntilQuiet(noop);\n        close();\n\n        return {\n          $$willAnimate: false,\n          start: function() {\n            return runner;\n          },\n          end: endFn\n        };\n      }\n\n      function onAnimationProgress(event) {\n        event.stopPropagation();\n        var ev = event.originalEvent || event;\n\n        if (ev.target !== node) {\n          // Since TransitionEvent / AnimationEvent bubble up,\n          // we have to ignore events by finished child animations\n          return;\n        }\n\n        // we now always use `Date.now()` due to the recent changes with\n        // event.timeStamp in Firefox, Webkit and Chrome (see #13494 for more info)\n        var timeStamp = ev.$manualTimeStamp || Date.now();\n\n        /* Firefox (or possibly just Gecko) likes to not round values up\n         * when a ms measurement is used for the animation */\n        var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));\n\n        /* $manualTimeStamp is a mocked timeStamp value which is set\n         * within browserTrigger(). This is only here so that tests can\n         * mock animations properly. Real events fallback to event.timeStamp,\n         * or, if they don't, then a timeStamp is automatically created for them.\n         * We're checking to see if the timeStamp surpasses the expected delay,\n         * but we're using elapsedTime instead of the timeStamp on the 2nd\n         * pre-condition since animationPauseds sometimes close off early */\n        if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n          // we set this flag to ensure that if the transition is paused then, when resumed,\n          // the animation will automatically close itself since transitions cannot be paused.\n          animationCompleted = true;\n          close();\n        }\n      }\n\n      function start() {\n        if (animationClosed) return;\n        if (!node.parentNode) {\n          close();\n          return;\n        }\n\n        // even though we only pause keyframe animations here the pause flag\n        // will still happen when transitions are used. Only the transition will\n        // not be paused since that is not possible. If the animation ends when\n        // paused then it will not complete until unpaused or cancelled.\n        var playPause = function(playAnimation) {\n          if (!animationCompleted) {\n            animationPaused = !playAnimation;\n            if (timings.animationDuration) {\n              var value = blockKeyframeAnimations(node, animationPaused);\n              if (animationPaused) {\n                temporaryStyles.push(value);\n              } else {\n                removeFromArray(temporaryStyles, value);\n              }\n            }\n          } else if (animationPaused && playAnimation) {\n            animationPaused = false;\n            close();\n          }\n        };\n\n        // checking the stagger duration prevents an accidentally cascade of the CSS delay style\n        // being inherited from the parent. If the transition duration is zero then we can safely\n        // rely that the delay value is an intentional stagger delay style.\n        var maxStagger = itemIndex > 0\n                         && ((timings.transitionDuration && stagger.transitionDuration === 0) ||\n                            (timings.animationDuration && stagger.animationDuration === 0))\n                         && Math.max(stagger.animationDelay, stagger.transitionDelay);\n        if (maxStagger) {\n          $timeout(triggerAnimationStart,\n                   Math.floor(maxStagger * itemIndex * ONE_SECOND),\n                   false);\n        } else {\n          triggerAnimationStart();\n        }\n\n        // this will decorate the existing promise runner with pause/resume methods\n        runnerHost.resume = function() {\n          playPause(true);\n        };\n\n        runnerHost.pause = function() {\n          playPause(false);\n        };\n\n        function triggerAnimationStart() {\n          // just incase a stagger animation kicks in when the animation\n          // itself was cancelled entirely\n          if (animationClosed) return;\n\n          applyBlocking(false);\n\n          forEach(temporaryStyles, function(entry) {\n            var key = entry[0];\n            var value = entry[1];\n            node.style[key] = value;\n          });\n\n          applyAnimationClasses(element, options);\n          $$jqLite.addClass(element, activeClasses);\n\n          if (flags.recalculateTimingStyles) {\n            fullClassName = node.getAttribute('class') + ' ' + preparationClasses;\n            cacheKey = gcsHashFn(node, fullClassName);\n\n            timings = computeTimings(node, fullClassName, cacheKey);\n            relativeDelay = timings.maxDelay;\n            maxDelay = Math.max(relativeDelay, 0);\n            maxDuration = timings.maxDuration;\n\n            if (maxDuration === 0) {\n              close();\n              return;\n            }\n\n            flags.hasTransitions = timings.transitionDuration > 0;\n            flags.hasAnimations = timings.animationDuration > 0;\n          }\n\n          if (flags.applyAnimationDelay) {\n            relativeDelay = typeof options.delay !== 'boolean' && truthyTimingValue(options.delay)\n                  ? parseFloat(options.delay)\n                  : relativeDelay;\n\n            maxDelay = Math.max(relativeDelay, 0);\n            timings.animationDelay = relativeDelay;\n            delayStyle = getCssDelayStyle(relativeDelay, true);\n            temporaryStyles.push(delayStyle);\n            node.style[delayStyle[0]] = delayStyle[1];\n          }\n\n          maxDelayTime = maxDelay * ONE_SECOND;\n          maxDurationTime = maxDuration * ONE_SECOND;\n\n          if (options.easing) {\n            var easeProp, easeVal = options.easing;\n            if (flags.hasTransitions) {\n              easeProp = TRANSITION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n            if (flags.hasAnimations) {\n              easeProp = ANIMATION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n          }\n\n          if (timings.transitionDuration) {\n            events.push(TRANSITIONEND_EVENT);\n          }\n\n          if (timings.animationDuration) {\n            events.push(ANIMATIONEND_EVENT);\n          }\n\n          startTime = Date.now();\n          var timerTime = maxDelayTime + CLOSING_TIME_BUFFER * maxDurationTime;\n          var endTime = startTime + timerTime;\n\n          var animationsData = element.data(ANIMATE_TIMER_KEY) || [];\n          var setupFallbackTimer = true;\n          if (animationsData.length) {\n            var currentTimerData = animationsData[0];\n            setupFallbackTimer = endTime > currentTimerData.expectedEndTime;\n            if (setupFallbackTimer) {\n              $timeout.cancel(currentTimerData.timer);\n            } else {\n              animationsData.push(close);\n            }\n          }\n\n          if (setupFallbackTimer) {\n            var timer = $timeout(onAnimationExpired, timerTime, false);\n            animationsData[0] = {\n              timer: timer,\n              expectedEndTime: endTime\n            };\n            animationsData.push(close);\n            element.data(ANIMATE_TIMER_KEY, animationsData);\n          }\n\n          if (events.length) {\n            element.on(events.join(' '), onAnimationProgress);\n          }\n\n          if (options.to) {\n            if (options.cleanupStyles) {\n              registerRestorableStyles(restoreStyles, node, Object.keys(options.to));\n            }\n            applyAnimationToStyles(element, options);\n          }\n        }\n\n        function onAnimationExpired() {\n          var animationsData = element.data(ANIMATE_TIMER_KEY);\n\n          // this will be false in the event that the element was\n          // removed from the DOM (via a leave animation or something\n          // similar)\n          if (animationsData) {\n            for (var i = 1; i < animationsData.length; i++) {\n              animationsData[i]();\n            }\n            element.removeData(ANIMATE_TIMER_KEY);\n          }\n        }\n      }\n    };\n  }];\n}];\n\nvar $$AnimateCssDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateCssDriver');\n\n  var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';\n  var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';\n\n  var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';\n  var NG_IN_ANCHOR_CLASS_NAME = 'ng-anchor-in';\n\n  function isDocumentFragment(node) {\n    return node.parentNode && node.parentNode.nodeType === 11;\n  }\n\n  this.$get = ['$animateCss', '$rootScope', '$$AnimateRunner', '$rootElement', '$sniffer', '$$jqLite', '$document',\n       function($animateCss,   $rootScope,   $$AnimateRunner,   $rootElement,   $sniffer,   $$jqLite,   $document) {\n\n    // only browsers that support these properties can render animations\n    if (!$sniffer.animations && !$sniffer.transitions) return noop;\n\n    var bodyNode = $document[0].body;\n    var rootNode = getDomNode($rootElement);\n\n    var rootBodyElement = jqLite(\n      // this is to avoid using something that exists outside of the body\n      // we also special case the doc fragment case because our unit test code\n      // appends the $rootElement to the body after the app has been bootstrapped\n      isDocumentFragment(rootNode) || bodyNode.contains(rootNode) ? rootNode : bodyNode\n    );\n\n    return function initDriverFn(animationDetails) {\n      return animationDetails.from && animationDetails.to\n          ? prepareFromToAnchorAnimation(animationDetails.from,\n                                         animationDetails.to,\n                                         animationDetails.classes,\n                                         animationDetails.anchors)\n          : prepareRegularAnimation(animationDetails);\n    };\n\n    function filterCssClasses(classes) {\n      //remove all the `ng-` stuff\n      return classes.replace(/\\bng-\\S+\\b/g, '');\n    }\n\n    function getUniqueValues(a, b) {\n      if (isString(a)) a = a.split(' ');\n      if (isString(b)) b = b.split(' ');\n      return a.filter(function(val) {\n        return b.indexOf(val) === -1;\n      }).join(' ');\n    }\n\n    function prepareAnchoredAnimation(classes, outAnchor, inAnchor) {\n      var clone = jqLite(getDomNode(outAnchor).cloneNode(true));\n      var startingClasses = filterCssClasses(getClassVal(clone));\n\n      outAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      inAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n\n      clone.addClass(NG_ANIMATE_ANCHOR_CLASS_NAME);\n\n      rootBodyElement.append(clone);\n\n      var animatorIn, animatorOut = prepareOutAnimation();\n\n      // the user may not end up using the `out` animation and\n      // only making use of the `in` animation or vice-versa.\n      // In either case we should allow this and not assume the\n      // animation is over unless both animations are not used.\n      if (!animatorOut) {\n        animatorIn = prepareInAnimation();\n        if (!animatorIn) {\n          return end();\n        }\n      }\n\n      var startingAnimator = animatorOut || animatorIn;\n\n      return {\n        start: function() {\n          var runner;\n\n          var currentAnimation = startingAnimator.start();\n          currentAnimation.done(function() {\n            currentAnimation = null;\n            if (!animatorIn) {\n              animatorIn = prepareInAnimation();\n              if (animatorIn) {\n                currentAnimation = animatorIn.start();\n                currentAnimation.done(function() {\n                  currentAnimation = null;\n                  end();\n                  runner.complete();\n                });\n                return currentAnimation;\n              }\n            }\n            // in the event that there is no `in` animation\n            end();\n            runner.complete();\n          });\n\n          runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn\n          });\n\n          return runner;\n\n          function endFn() {\n            if (currentAnimation) {\n              currentAnimation.end();\n            }\n          }\n        }\n      };\n\n      function calculateAnchorStyles(anchor) {\n        var styles = {};\n\n        var coords = getDomNode(anchor).getBoundingClientRect();\n\n        // we iterate directly since safari messes up and doesn't return\n        // all the keys for the coords object when iterated\n        forEach(['width','height','top','left'], function(key) {\n          var value = coords[key];\n          switch (key) {\n            case 'top':\n              value += bodyNode.scrollTop;\n              break;\n            case 'left':\n              value += bodyNode.scrollLeft;\n              break;\n          }\n          styles[key] = Math.floor(value) + 'px';\n        });\n        return styles;\n      }\n\n      function prepareOutAnimation() {\n        var animator = $animateCss(clone, {\n          addClass: NG_OUT_ANCHOR_CLASS_NAME,\n          delay: true,\n          from: calculateAnchorStyles(outAnchor)\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function getClassVal(element) {\n        return element.attr('class') || '';\n      }\n\n      function prepareInAnimation() {\n        var endingClasses = filterCssClasses(getClassVal(inAnchor));\n        var toAdd = getUniqueValues(endingClasses, startingClasses);\n        var toRemove = getUniqueValues(startingClasses, endingClasses);\n\n        var animator = $animateCss(clone, {\n          to: calculateAnchorStyles(inAnchor),\n          addClass: NG_IN_ANCHOR_CLASS_NAME + ' ' + toAdd,\n          removeClass: NG_OUT_ANCHOR_CLASS_NAME + ' ' + toRemove,\n          delay: true\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function end() {\n        clone.remove();\n        outAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n        inAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      }\n    }\n\n    function prepareFromToAnchorAnimation(from, to, classes, anchors) {\n      var fromAnimation = prepareRegularAnimation(from, noop);\n      var toAnimation = prepareRegularAnimation(to, noop);\n\n      var anchorAnimations = [];\n      forEach(anchors, function(anchor) {\n        var outElement = anchor['out'];\n        var inElement = anchor['in'];\n        var animator = prepareAnchoredAnimation(classes, outElement, inElement);\n        if (animator) {\n          anchorAnimations.push(animator);\n        }\n      });\n\n      // no point in doing anything when there are no elements to animate\n      if (!fromAnimation && !toAnimation && anchorAnimations.length === 0) return;\n\n      return {\n        start: function() {\n          var animationRunners = [];\n\n          if (fromAnimation) {\n            animationRunners.push(fromAnimation.start());\n          }\n\n          if (toAnimation) {\n            animationRunners.push(toAnimation.start());\n          }\n\n          forEach(anchorAnimations, function(animation) {\n            animationRunners.push(animation.start());\n          });\n\n          var runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn // CSS-driven animations cannot be cancelled, only ended\n          });\n\n          $$AnimateRunner.all(animationRunners, function(status) {\n            runner.complete(status);\n          });\n\n          return runner;\n\n          function endFn() {\n            forEach(animationRunners, function(runner) {\n              runner.end();\n            });\n          }\n        }\n      };\n    }\n\n    function prepareRegularAnimation(animationDetails) {\n      var element = animationDetails.element;\n      var options = animationDetails.options || {};\n\n      if (animationDetails.structural) {\n        options.event = animationDetails.event;\n        options.structural = true;\n        options.applyClassesEarly = true;\n\n        // we special case the leave animation since we want to ensure that\n        // the element is removed as soon as the animation is over. Otherwise\n        // a flicker might appear or the element may not be removed at all\n        if (animationDetails.event === 'leave') {\n          options.onDone = options.domOperation;\n        }\n      }\n\n      // We assign the preparationClasses as the actual animation event since\n      // the internals of $animateCss will just suffix the event token values\n      // with `-active` to trigger the animation.\n      if (options.preparationClasses) {\n        options.event = concatWithSpace(options.event, options.preparationClasses);\n      }\n\n      var animator = $animateCss(element, options);\n\n      // the driver lookup code inside of $$animation attempts to spawn a\n      // driver one by one until a driver returns a.$$willAnimate animator object.\n      // $animateCss will always return an object, however, it will pass in\n      // a flag as a hint as to whether an animation was detected or not\n      return animator.$$willAnimate ? animator : null;\n    }\n  }];\n}];\n\n// TODO(matsko): use caching here to speed things up for detection\n// TODO(matsko): add documentation\n//  by the time...\n\nvar $$AnimateJsProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  this.$get = ['$injector', '$$AnimateRunner', '$$jqLite',\n       function($injector,   $$AnimateRunner,   $$jqLite) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n         // $animateJs(element, 'enter');\n    return function(element, event, classes, options) {\n      var animationClosed = false;\n\n      // the `classes` argument is optional and if it is not used\n      // then the classes will be resolved from the element's className\n      // property as well as options.addClass/options.removeClass.\n      if (arguments.length === 3 && isObject(classes)) {\n        options = classes;\n        classes = null;\n      }\n\n      options = prepareAnimationOptions(options);\n      if (!classes) {\n        classes = element.attr('class') || '';\n        if (options.addClass) {\n          classes += ' ' + options.addClass;\n        }\n        if (options.removeClass) {\n          classes += ' ' + options.removeClass;\n        }\n      }\n\n      var classesToAdd = options.addClass;\n      var classesToRemove = options.removeClass;\n\n      // the lookupAnimations function returns a series of animation objects that are\n      // matched up with one or more of the CSS classes. These animation objects are\n      // defined via the module.animation factory function. If nothing is detected then\n      // we don't return anything which then makes $animation query the next driver.\n      var animations = lookupAnimations(classes);\n      var before, after;\n      if (animations.length) {\n        var afterFn, beforeFn;\n        if (event === 'leave') {\n          beforeFn = 'leave';\n          afterFn = 'afterLeave'; // TODO(matsko): get rid of this\n        } else {\n          beforeFn = 'before' + event.charAt(0).toUpperCase() + event.substr(1);\n          afterFn = event;\n        }\n\n        if (event !== 'enter' && event !== 'move') {\n          before = packageAnimations(element, event, options, animations, beforeFn);\n        }\n        after  = packageAnimations(element, event, options, animations, afterFn);\n      }\n\n      // no matching animations\n      if (!before && !after) return;\n\n      function applyOptions() {\n        options.domOperation();\n        applyAnimationClasses(element, options);\n      }\n\n      function close() {\n        animationClosed = true;\n        applyOptions();\n        applyAnimationStyles(element, options);\n      }\n\n      var runner;\n\n      return {\n        $$willAnimate: true,\n        end: function() {\n          if (runner) {\n            runner.end();\n          } else {\n            close();\n            runner = new $$AnimateRunner();\n            runner.complete(true);\n          }\n          return runner;\n        },\n        start: function() {\n          if (runner) {\n            return runner;\n          }\n\n          runner = new $$AnimateRunner();\n          var closeActiveAnimations;\n          var chain = [];\n\n          if (before) {\n            chain.push(function(fn) {\n              closeActiveAnimations = before(fn);\n            });\n          }\n\n          if (chain.length) {\n            chain.push(function(fn) {\n              applyOptions();\n              fn(true);\n            });\n          } else {\n            applyOptions();\n          }\n\n          if (after) {\n            chain.push(function(fn) {\n              closeActiveAnimations = after(fn);\n            });\n          }\n\n          runner.setHost({\n            end: function() {\n              endAnimations();\n            },\n            cancel: function() {\n              endAnimations(true);\n            }\n          });\n\n          $$AnimateRunner.chain(chain, onComplete);\n          return runner;\n\n          function onComplete(success) {\n            close(success);\n            runner.complete(success);\n          }\n\n          function endAnimations(cancelled) {\n            if (!animationClosed) {\n              (closeActiveAnimations || noop)(cancelled);\n              onComplete(cancelled);\n            }\n          }\n        }\n      };\n\n      function executeAnimationFn(fn, element, event, options, onDone) {\n        var args;\n        switch (event) {\n          case 'animate':\n            args = [element, options.from, options.to, onDone];\n            break;\n\n          case 'setClass':\n            args = [element, classesToAdd, classesToRemove, onDone];\n            break;\n\n          case 'addClass':\n            args = [element, classesToAdd, onDone];\n            break;\n\n          case 'removeClass':\n            args = [element, classesToRemove, onDone];\n            break;\n\n          default:\n            args = [element, onDone];\n            break;\n        }\n\n        args.push(options);\n\n        var value = fn.apply(fn, args);\n        if (value) {\n          if (isFunction(value.start)) {\n            value = value.start();\n          }\n\n          if (value instanceof $$AnimateRunner) {\n            value.done(onDone);\n          } else if (isFunction(value)) {\n            // optional onEnd / onCancel callback\n            return value;\n          }\n        }\n\n        return noop;\n      }\n\n      function groupEventedAnimations(element, event, options, animations, fnName) {\n        var operations = [];\n        forEach(animations, function(ani) {\n          var animation = ani[fnName];\n          if (!animation) return;\n\n          // note that all of these animations will run in parallel\n          operations.push(function() {\n            var runner;\n            var endProgressCb;\n\n            var resolved = false;\n            var onAnimationComplete = function(rejected) {\n              if (!resolved) {\n                resolved = true;\n                (endProgressCb || noop)(rejected);\n                runner.complete(!rejected);\n              }\n            };\n\n            runner = new $$AnimateRunner({\n              end: function() {\n                onAnimationComplete();\n              },\n              cancel: function() {\n                onAnimationComplete(true);\n              }\n            });\n\n            endProgressCb = executeAnimationFn(animation, element, event, options, function(result) {\n              var cancelled = result === false;\n              onAnimationComplete(cancelled);\n            });\n\n            return runner;\n          });\n        });\n\n        return operations;\n      }\n\n      function packageAnimations(element, event, options, animations, fnName) {\n        var operations = groupEventedAnimations(element, event, options, animations, fnName);\n        if (operations.length === 0) {\n          var a, b;\n          if (fnName === 'beforeSetClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'beforeRemoveClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'beforeAddClass');\n          } else if (fnName === 'setClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'removeClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'addClass');\n          }\n\n          if (a) {\n            operations = operations.concat(a);\n          }\n          if (b) {\n            operations = operations.concat(b);\n          }\n        }\n\n        if (operations.length === 0) return;\n\n        // TODO(matsko): add documentation\n        return function startAnimation(callback) {\n          var runners = [];\n          if (operations.length) {\n            forEach(operations, function(animateFn) {\n              runners.push(animateFn());\n            });\n          }\n\n          if (runners.length) {\n            $$AnimateRunner.all(runners, callback);\n          }  else {\n            callback();\n          }\n\n          return function endFn(reject) {\n            forEach(runners, function(runner) {\n              if (reject) {\n                runner.cancel();\n              } else {\n                runner.end();\n              }\n            });\n          };\n        };\n      }\n    };\n\n    function lookupAnimations(classes) {\n      classes = isArray(classes) ? classes : classes.split(' ');\n      var matches = [], flagMap = {};\n      for (var i = 0; i < classes.length; i++) {\n        var klass = classes[i],\n            animationFactory = $animateProvider.$$registeredAnimations[klass];\n        if (animationFactory && !flagMap[klass]) {\n          matches.push($injector.get(animationFactory));\n          flagMap[klass] = true;\n        }\n      }\n      return matches;\n    }\n  }];\n}];\n\nvar $$AnimateJsDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateJsDriver');\n  this.$get = ['$$animateJs', '$$AnimateRunner', function($$animateJs, $$AnimateRunner) {\n    return function initDriverFn(animationDetails) {\n      if (animationDetails.from && animationDetails.to) {\n        var fromAnimation = prepareAnimation(animationDetails.from);\n        var toAnimation = prepareAnimation(animationDetails.to);\n        if (!fromAnimation && !toAnimation) return;\n\n        return {\n          start: function() {\n            var animationRunners = [];\n\n            if (fromAnimation) {\n              animationRunners.push(fromAnimation.start());\n            }\n\n            if (toAnimation) {\n              animationRunners.push(toAnimation.start());\n            }\n\n            $$AnimateRunner.all(animationRunners, done);\n\n            var runner = new $$AnimateRunner({\n              end: endFnFactory(),\n              cancel: endFnFactory()\n            });\n\n            return runner;\n\n            function endFnFactory() {\n              return function() {\n                forEach(animationRunners, function(runner) {\n                  // at this point we cannot cancel animations for groups just yet. 1.5+\n                  runner.end();\n                });\n              };\n            }\n\n            function done(status) {\n              runner.complete(status);\n            }\n          }\n        };\n      } else {\n        return prepareAnimation(animationDetails);\n      }\n    };\n\n    function prepareAnimation(animationDetails) {\n      // TODO(matsko): make sure to check for grouped animations and delegate down to normal animations\n      var element = animationDetails.element;\n      var event = animationDetails.event;\n      var options = animationDetails.options;\n      var classes = animationDetails.classes;\n      return $$animateJs(element, event, classes, options);\n    }\n  }];\n}];\n\nvar NG_ANIMATE_ATTR_NAME = 'data-ng-animate';\nvar NG_ANIMATE_PIN_DATA = '$ngAnimatePin';\nvar $$AnimateQueueProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var PRE_DIGEST_STATE = 1;\n  var RUNNING_STATE = 2;\n  var ONE_SPACE = ' ';\n\n  var rules = this.rules = {\n    skip: [],\n    cancel: [],\n    join: []\n  };\n\n  function makeTruthyCssClassMap(classString) {\n    if (!classString) {\n      return null;\n    }\n\n    var keys = classString.split(ONE_SPACE);\n    var map = Object.create(null);\n\n    forEach(keys, function(key) {\n      map[key] = true;\n    });\n    return map;\n  }\n\n  function hasMatchingClasses(newClassString, currentClassString) {\n    if (newClassString && currentClassString) {\n      var currentClassMap = makeTruthyCssClassMap(currentClassString);\n      return newClassString.split(ONE_SPACE).some(function(className) {\n        return currentClassMap[className];\n      });\n    }\n  }\n\n  function isAllowed(ruleType, currentAnimation, previousAnimation) {\n    return rules[ruleType].some(function(fn) {\n      return fn(currentAnimation, previousAnimation);\n    });\n  }\n\n  function hasAnimationClasses(animation, and) {\n    var a = (animation.addClass || '').length > 0;\n    var b = (animation.removeClass || '').length > 0;\n    return and ? a && b : a || b;\n  }\n\n  rules.join.push(function(newAnimation, currentAnimation) {\n    // if the new animation is class-based then we can just tack that on\n    return !newAnimation.structural && hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // there is no need to animate anything if no classes are being added and\n    // there is no structural animation that will be triggered\n    return !newAnimation.structural && !hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // why should we trigger a new structural animation if the element will\n    // be removed from the DOM anyway?\n    return currentAnimation.event === 'leave' && newAnimation.structural;\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // if there is an ongoing current animation then don't even bother running the class-based animation\n    return currentAnimation.structural && currentAnimation.state === RUNNING_STATE && !newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // there can never be two structural animations running at the same time\n    return currentAnimation.structural && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // if the previous animation is already running, but the new animation will\n    // be triggered, but the new animation is structural\n    return currentAnimation.state === RUNNING_STATE && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // cancel the animation if classes added / removed in both animation cancel each other out,\n    // but only if the current animation isn't structural\n\n    if (currentAnimation.structural) return false;\n\n    var nA = newAnimation.addClass;\n    var nR = newAnimation.removeClass;\n    var cA = currentAnimation.addClass;\n    var cR = currentAnimation.removeClass;\n\n    // early detection to save the global CPU shortage :)\n    if ((isUndefined(nA) && isUndefined(nR)) || (isUndefined(cA) && isUndefined(cR))) {\n      return false;\n    }\n\n    return hasMatchingClasses(nA, cR) || hasMatchingClasses(nR, cA);\n  });\n\n  this.$get = ['$$rAF', '$rootScope', '$rootElement', '$document', '$$Map',\n               '$$animation', '$$AnimateRunner', '$templateRequest', '$$jqLite', '$$forceReflow',\n               '$$isDocumentHidden',\n       function($$rAF,   $rootScope,   $rootElement,   $document,   $$Map,\n                $$animation,   $$AnimateRunner,   $templateRequest,   $$jqLite,   $$forceReflow,\n                $$isDocumentHidden) {\n\n    var activeAnimationsLookup = new $$Map();\n    var disabledElementsLookup = new $$Map();\n    var animationsEnabled = null;\n\n    function postDigestTaskFactory() {\n      var postDigestCalled = false;\n      return function(fn) {\n        // we only issue a call to postDigest before\n        // it has first passed. This prevents any callbacks\n        // from not firing once the animation has completed\n        // since it will be out of the digest cycle.\n        if (postDigestCalled) {\n          fn();\n        } else {\n          $rootScope.$$postDigest(function() {\n            postDigestCalled = true;\n            fn();\n          });\n        }\n      };\n    }\n\n    // Wait until all directive and route-related templates are downloaded and\n    // compiled. The $templateRequest.totalPendingRequests variable keeps track of\n    // all of the remote templates being currently downloaded. If there are no\n    // templates currently downloading then the watcher will still fire anyway.\n    var deregisterWatch = $rootScope.$watch(\n      function() { return $templateRequest.totalPendingRequests === 0; },\n      function(isEmpty) {\n        if (!isEmpty) return;\n        deregisterWatch();\n\n        // Now that all templates have been downloaded, $animate will wait until\n        // the post digest queue is empty before enabling animations. By having two\n        // calls to $postDigest calls we can ensure that the flag is enabled at the\n        // very end of the post digest queue. Since all of the animations in $animate\n        // use $postDigest, it's important that the code below executes at the end.\n        // This basically means that the page is fully downloaded and compiled before\n        // any animations are triggered.\n        $rootScope.$$postDigest(function() {\n          $rootScope.$$postDigest(function() {\n            // we check for null directly in the event that the application already called\n            // .enabled() with whatever arguments that it provided it with\n            if (animationsEnabled === null) {\n              animationsEnabled = true;\n            }\n          });\n        });\n      }\n    );\n\n    var callbackRegistry = Object.create(null);\n\n    // remember that the `customFilter`/`classNameFilter` are set during the\n    // provider/config stage therefore we can optimize here and setup helper functions\n    var customFilter = $animateProvider.customFilter();\n    var classNameFilter = $animateProvider.classNameFilter();\n    var returnTrue = function() { return true; };\n\n    var isAnimatableByFilter = customFilter || returnTrue;\n    var isAnimatableClassName = !classNameFilter ? returnTrue : function(node, options) {\n      var className = [node.getAttribute('class'), options.addClass, options.removeClass].join(' ');\n      return classNameFilter.test(className);\n    };\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function normalizeAnimationDetails(element, animation) {\n      return mergeAnimationDetails(element, animation, {});\n    }\n\n    // IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\n    var contains = window.Node.prototype.contains || /** @this */ function(arg) {\n      // eslint-disable-next-line no-bitwise\n      return this === arg || !!(this.compareDocumentPosition(arg) & 16);\n    };\n\n    function findCallbacks(targetParentNode, targetNode, event) {\n      var matches = [];\n      var entries = callbackRegistry[event];\n      if (entries) {\n        forEach(entries, function(entry) {\n          if (contains.call(entry.node, targetNode)) {\n            matches.push(entry.callback);\n          } else if (event === 'leave' && contains.call(entry.node, targetParentNode)) {\n            matches.push(entry.callback);\n          }\n        });\n      }\n\n      return matches;\n    }\n\n    function filterFromRegistry(list, matchContainer, matchCallback) {\n      var containerNode = extractElementNode(matchContainer);\n      return list.filter(function(entry) {\n        var isMatch = entry.node === containerNode &&\n                        (!matchCallback || entry.callback === matchCallback);\n        return !isMatch;\n      });\n    }\n\n    function cleanupEventListeners(phase, node) {\n      if (phase === 'close' && !node.parentNode) {\n        // If the element is not attached to a parentNode, it has been removed by\n        // the domOperation, and we can safely remove the event callbacks\n        $animate.off(node);\n      }\n    }\n\n    var $animate = {\n      on: function(event, container, callback) {\n        var node = extractElementNode(container);\n        callbackRegistry[event] = callbackRegistry[event] || [];\n        callbackRegistry[event].push({\n          node: node,\n          callback: callback\n        });\n\n        // Remove the callback when the element is removed from the DOM\n        jqLite(container).on('$destroy', function() {\n          var animationDetails = activeAnimationsLookup.get(node);\n\n          if (!animationDetails) {\n            // If there's an animation ongoing, the callback calling code will remove\n            // the event listeners. If we'd remove here, the callbacks would be removed\n            // before the animation ends\n            $animate.off(event, container, callback);\n          }\n        });\n      },\n\n      off: function(event, container, callback) {\n        if (arguments.length === 1 && !isString(arguments[0])) {\n          container = arguments[0];\n          for (var eventType in callbackRegistry) {\n            callbackRegistry[eventType] = filterFromRegistry(callbackRegistry[eventType], container);\n          }\n\n          return;\n        }\n\n        var entries = callbackRegistry[event];\n        if (!entries) return;\n\n        callbackRegistry[event] = arguments.length === 1\n            ? null\n            : filterFromRegistry(entries, container, callback);\n      },\n\n      pin: function(element, parentElement) {\n        assertArg(isElement(element), 'element', 'not an element');\n        assertArg(isElement(parentElement), 'parentElement', 'not an element');\n        element.data(NG_ANIMATE_PIN_DATA, parentElement);\n      },\n\n      push: function(element, event, options, domOperation) {\n        options = options || {};\n        options.domOperation = domOperation;\n        return queueAnimation(element, event, options);\n      },\n\n      // this method has four signatures:\n      //  () - global getter\n      //  (bool) - global setter\n      //  (element) - element getter\n      //  (element, bool) - element setter<F37>\n      enabled: function(element, bool) {\n        var argCount = arguments.length;\n\n        if (argCount === 0) {\n          // () - Global getter\n          bool = !!animationsEnabled;\n        } else {\n          var hasElement = isElement(element);\n\n          if (!hasElement) {\n            // (bool) - Global setter\n            bool = animationsEnabled = !!element;\n          } else {\n            var node = getDomNode(element);\n\n            if (argCount === 1) {\n              // (element) - Element getter\n              bool = !disabledElementsLookup.get(node);\n            } else {\n              // (element, bool) - Element setter\n              disabledElementsLookup.set(node, !bool);\n            }\n          }\n        }\n\n        return bool;\n      }\n    };\n\n    return $animate;\n\n    function queueAnimation(originalElement, event, initialOptions) {\n      // we always make a copy of the options since\n      // there should never be any side effects on\n      // the input data when running `$animateCss`.\n      var options = copy(initialOptions);\n\n      var element = stripCommentsFromElement(originalElement);\n      var node = getDomNode(element);\n      var parentNode = node && node.parentNode;\n\n      options = prepareAnimationOptions(options);\n\n      // we create a fake runner with a working promise.\n      // These methods will become available after the digest has passed\n      var runner = new $$AnimateRunner();\n\n      // this is used to trigger callbacks in postDigest mode\n      var runInNextPostDigestOrNow = postDigestTaskFactory();\n\n      if (isArray(options.addClass)) {\n        options.addClass = options.addClass.join(' ');\n      }\n\n      if (options.addClass && !isString(options.addClass)) {\n        options.addClass = null;\n      }\n\n      if (isArray(options.removeClass)) {\n        options.removeClass = options.removeClass.join(' ');\n      }\n\n      if (options.removeClass && !isString(options.removeClass)) {\n        options.removeClass = null;\n      }\n\n      if (options.from && !isObject(options.from)) {\n        options.from = null;\n      }\n\n      if (options.to && !isObject(options.to)) {\n        options.to = null;\n      }\n\n      // If animations are hard-disabled for the whole application there is no need to continue.\n      // There are also situations where a directive issues an animation for a jqLite wrapper that\n      // contains only comment nodes. In this case, there is no way we can perform an animation.\n      if (!animationsEnabled ||\n          !node ||\n          !isAnimatableByFilter(node, event, initialOptions) ||\n          !isAnimatableClassName(node, options)) {\n        close();\n        return runner;\n      }\n\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      var documentHidden = $$isDocumentHidden();\n\n      // This is a hard disable of all animations the element itself, therefore  there is no need to\n      // continue further past this point if not enabled\n      // Animations are also disabled if the document is currently hidden (page is not visible\n      // to the user), because browsers slow down or do not flush calls to requestAnimationFrame\n      var skipAnimations = documentHidden || disabledElementsLookup.get(node);\n      var existingAnimation = (!skipAnimations && activeAnimationsLookup.get(node)) || {};\n      var hasExistingAnimation = !!existingAnimation.state;\n\n      // there is no point in traversing the same collection of parent ancestors if a followup\n      // animation will be run on the same element that already did all that checking work\n      if (!skipAnimations && (!hasExistingAnimation || existingAnimation.state !== PRE_DIGEST_STATE)) {\n        skipAnimations = !areAnimationsAllowed(node, parentNode, event);\n      }\n\n      if (skipAnimations) {\n        // Callbacks should fire even if the document is hidden (regression fix for issue #14120)\n        if (documentHidden) notifyProgress(runner, event, 'start');\n        close();\n        if (documentHidden) notifyProgress(runner, event, 'close');\n        return runner;\n      }\n\n      if (isStructural) {\n        closeChildAnimations(node);\n      }\n\n      var newAnimation = {\n        structural: isStructural,\n        element: element,\n        event: event,\n        addClass: options.addClass,\n        removeClass: options.removeClass,\n        close: close,\n        options: options,\n        runner: runner\n      };\n\n      if (hasExistingAnimation) {\n        var skipAnimationFlag = isAllowed('skip', newAnimation, existingAnimation);\n        if (skipAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            close();\n            return runner;\n          } else {\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n            return existingAnimation.runner;\n          }\n        }\n        var cancelAnimationFlag = isAllowed('cancel', newAnimation, existingAnimation);\n        if (cancelAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            // this will end the animation right away and it is safe\n            // to do so since the animation is already running and the\n            // runner callback code will run in async\n            existingAnimation.runner.end();\n          } else if (existingAnimation.structural) {\n            // this means that the animation is queued into a digest, but\n            // hasn't started yet. Therefore it is safe to run the close\n            // method which will call the runner methods in async.\n            existingAnimation.close();\n          } else {\n            // this will merge the new animation options into existing animation options\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n            return existingAnimation.runner;\n          }\n        } else {\n          // a joined animation means that this animation will take over the existing one\n          // so an example would involve a leave animation taking over an enter. Then when\n          // the postDigest kicks in the enter will be ignored.\n          var joinAnimationFlag = isAllowed('join', newAnimation, existingAnimation);\n          if (joinAnimationFlag) {\n            if (existingAnimation.state === RUNNING_STATE) {\n              normalizeAnimationDetails(element, newAnimation);\n            } else {\n              applyGeneratedPreparationClasses(element, isStructural ? event : null, options);\n\n              event = newAnimation.event = existingAnimation.event;\n              options = mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n              //we return the same runner since only the option values of this animation will\n              //be fed into the `existingAnimation`.\n              return existingAnimation.runner;\n            }\n          }\n        }\n      } else {\n        // normalization in this case means that it removes redundant CSS classes that\n        // already exist (addClass) or do not exist (removeClass) on the element\n        normalizeAnimationDetails(element, newAnimation);\n      }\n\n      // when the options are merged and cleaned up we may end up not having to do\n      // an animation at all, therefore we should check this before issuing a post\n      // digest callback. Structural animations will always run no matter what.\n      var isValidAnimation = newAnimation.structural;\n      if (!isValidAnimation) {\n        // animate (from/to) can be quickly checked first, otherwise we check if any classes are present\n        isValidAnimation = (newAnimation.event === 'animate' && Object.keys(newAnimation.options.to || {}).length > 0)\n                            || hasAnimationClasses(newAnimation);\n      }\n\n      if (!isValidAnimation) {\n        close();\n        clearElementAnimationState(node);\n        return runner;\n      }\n\n      // the counter keeps track of cancelled animations\n      var counter = (existingAnimation.counter || 0) + 1;\n      newAnimation.counter = counter;\n\n      markElementAnimationState(node, PRE_DIGEST_STATE, newAnimation);\n\n      $rootScope.$$postDigest(function() {\n        // It is possible that the DOM nodes inside `originalElement` have been replaced. This can\n        // happen if the animated element is a transcluded clone and also has a `templateUrl`\n        // directive on it. Therefore, we must recreate `element` in order to interact with the\n        // actual DOM nodes.\n        // Note: We still need to use the old `node` for certain things, such as looking up in\n        //       HashMaps where it was used as the key.\n\n        element = stripCommentsFromElement(originalElement);\n\n        var animationDetails = activeAnimationsLookup.get(node);\n        var animationCancelled = !animationDetails;\n        animationDetails = animationDetails || {};\n\n        // if addClass/removeClass is called before something like enter then the\n        // registered parent element may not be present. The code below will ensure\n        // that a final value for parent element is obtained\n        var parentElement = element.parent() || [];\n\n        // animate/structural/class-based animations all have requirements. Otherwise there\n        // is no point in performing an animation. The parent node must also be set.\n        var isValidAnimation = parentElement.length > 0\n                                && (animationDetails.event === 'animate'\n                                    || animationDetails.structural\n                                    || hasAnimationClasses(animationDetails));\n\n        // this means that the previous animation was cancelled\n        // even if the follow-up animation is the same event\n        if (animationCancelled || animationDetails.counter !== counter || !isValidAnimation) {\n          // if another animation did not take over then we need\n          // to make sure that the domOperation and options are\n          // handled accordingly\n          if (animationCancelled) {\n            applyAnimationClasses(element, options);\n            applyAnimationStyles(element, options);\n          }\n\n          // if the event changed from something like enter to leave then we do\n          // it, otherwise if it's the same then the end result will be the same too\n          if (animationCancelled || (isStructural && animationDetails.event !== event)) {\n            options.domOperation();\n            runner.end();\n          }\n\n          // in the event that the element animation was not cancelled or a follow-up animation\n          // isn't allowed to animate from here then we need to clear the state of the element\n          // so that any future animations won't read the expired animation data.\n          if (!isValidAnimation) {\n            clearElementAnimationState(node);\n          }\n\n          return;\n        }\n\n        // this combined multiple class to addClass / removeClass into a setClass event\n        // so long as a structural event did not take over the animation\n        event = !animationDetails.structural && hasAnimationClasses(animationDetails, true)\n            ? 'setClass'\n            : animationDetails.event;\n\n        markElementAnimationState(node, RUNNING_STATE);\n        var realRunner = $$animation(element, event, animationDetails.options);\n\n        // this will update the runner's flow-control events based on\n        // the `realRunner` object.\n        runner.setHost(realRunner);\n        notifyProgress(runner, event, 'start', {});\n\n        realRunner.done(function(status) {\n          close(!status);\n          var animationDetails = activeAnimationsLookup.get(node);\n          if (animationDetails && animationDetails.counter === counter) {\n            clearElementAnimationState(node);\n          }\n          notifyProgress(runner, event, 'close', {});\n        });\n      });\n\n      return runner;\n\n      function notifyProgress(runner, event, phase, data) {\n        runInNextPostDigestOrNow(function() {\n          var callbacks = findCallbacks(parentNode, node, event);\n          if (callbacks.length) {\n            // do not optimize this call here to RAF because\n            // we don't know how heavy the callback code here will\n            // be and if this code is buffered then this can\n            // lead to a performance regression.\n            $$rAF(function() {\n              forEach(callbacks, function(callback) {\n                callback(element, phase, data);\n              });\n              cleanupEventListeners(phase, node);\n            });\n          } else {\n            cleanupEventListeners(phase, node);\n          }\n        });\n        runner.progress(event, phase, data);\n      }\n\n      function close(reject) {\n        clearGeneratedClasses(element, options);\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n        runner.complete(!reject);\n      }\n    }\n\n    function closeChildAnimations(node) {\n      var children = node.querySelectorAll('[' + NG_ANIMATE_ATTR_NAME + ']');\n      forEach(children, function(child) {\n        var state = parseInt(child.getAttribute(NG_ANIMATE_ATTR_NAME), 10);\n        var animationDetails = activeAnimationsLookup.get(child);\n        if (animationDetails) {\n          switch (state) {\n            case RUNNING_STATE:\n              animationDetails.runner.end();\n              /* falls through */\n            case PRE_DIGEST_STATE:\n              activeAnimationsLookup.delete(child);\n              break;\n          }\n        }\n      });\n    }\n\n    function clearElementAnimationState(node) {\n      node.removeAttribute(NG_ANIMATE_ATTR_NAME);\n      activeAnimationsLookup.delete(node);\n    }\n\n    /**\n     * This fn returns false if any of the following is true:\n     * a) animations on any parent element are disabled, and animations on the element aren't explicitly allowed\n     * b) a parent element has an ongoing structural animation, and animateChildren is false\n     * c) the element is not a child of the body\n     * d) the element is not a child of the $rootElement\n     */\n    function areAnimationsAllowed(node, parentNode, event) {\n      var bodyNode = $document[0].body;\n      var rootNode = getDomNode($rootElement);\n\n      var bodyNodeDetected = (node === bodyNode) || node.nodeName === 'HTML';\n      var rootNodeDetected = (node === rootNode);\n      var parentAnimationDetected = false;\n      var elementDisabled = disabledElementsLookup.get(node);\n      var animateChildren;\n\n      var parentHost = jqLite.data(node, NG_ANIMATE_PIN_DATA);\n      if (parentHost) {\n        parentNode = getDomNode(parentHost);\n      }\n\n      while (parentNode) {\n        if (!rootNodeDetected) {\n          // AngularJS doesn't want to attempt to animate elements outside of the application\n          // therefore we need to ensure that the rootElement is an ancestor of the current element\n          rootNodeDetected = (parentNode === rootNode);\n        }\n\n        if (parentNode.nodeType !== ELEMENT_NODE) {\n          // no point in inspecting the #document element\n          break;\n        }\n\n        var details = activeAnimationsLookup.get(parentNode) || {};\n        // either an enter, leave or move animation will commence\n        // therefore we can't allow any animations to take place\n        // but if a parent animation is class-based then that's ok\n        if (!parentAnimationDetected) {\n          var parentNodeDisabled = disabledElementsLookup.get(parentNode);\n\n          if (parentNodeDisabled === true && elementDisabled !== false) {\n            // disable animations if the user hasn't explicitly enabled animations on the\n            // current element\n            elementDisabled = true;\n            // element is disabled via parent element, no need to check anything else\n            break;\n          } else if (parentNodeDisabled === false) {\n            elementDisabled = false;\n          }\n          parentAnimationDetected = details.structural;\n        }\n\n        if (isUndefined(animateChildren) || animateChildren === true) {\n          var value = jqLite.data(parentNode, NG_ANIMATE_CHILDREN_DATA);\n          if (isDefined(value)) {\n            animateChildren = value;\n          }\n        }\n\n        // there is no need to continue traversing at this point\n        if (parentAnimationDetected && animateChildren === false) break;\n\n        if (!bodyNodeDetected) {\n          // we also need to ensure that the element is or will be a part of the body element\n          // otherwise it is pointless to even issue an animation to be rendered\n          bodyNodeDetected = (parentNode === bodyNode);\n        }\n\n        if (bodyNodeDetected && rootNodeDetected) {\n          // If both body and root have been found, any other checks are pointless,\n          // as no animation data should live outside the application\n          break;\n        }\n\n        if (!rootNodeDetected) {\n          // If `rootNode` is not detected, check if `parentNode` is pinned to another element\n          parentHost = jqLite.data(parentNode, NG_ANIMATE_PIN_DATA);\n          if (parentHost) {\n            // The pin target element becomes the next parent element\n            parentNode = getDomNode(parentHost);\n            continue;\n          }\n        }\n\n        parentNode = parentNode.parentNode;\n      }\n\n      var allowAnimation = (!parentAnimationDetected || animateChildren) && elementDisabled !== true;\n      return allowAnimation && rootNodeDetected && bodyNodeDetected;\n    }\n\n    function markElementAnimationState(node, state, details) {\n      details = details || {};\n      details.state = state;\n\n      node.setAttribute(NG_ANIMATE_ATTR_NAME, state);\n\n      var oldValue = activeAnimationsLookup.get(node);\n      var newValue = oldValue\n          ? extend(oldValue, details)\n          : details;\n      activeAnimationsLookup.set(node, newValue);\n    }\n  }];\n}];\n\n/* exported $$AnimationProvider */\n\nvar $$AnimationProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var NG_ANIMATE_REF_ATTR = 'ng-animate-ref';\n\n  var drivers = this.drivers = [];\n\n  var RUNNER_STORAGE_KEY = '$$animationRunner';\n\n  function setRunner(element, runner) {\n    element.data(RUNNER_STORAGE_KEY, runner);\n  }\n\n  function removeRunner(element) {\n    element.removeData(RUNNER_STORAGE_KEY);\n  }\n\n  function getRunner(element) {\n    return element.data(RUNNER_STORAGE_KEY);\n  }\n\n  this.$get = ['$$jqLite', '$rootScope', '$injector', '$$AnimateRunner', '$$Map', '$$rAFScheduler',\n       function($$jqLite,   $rootScope,   $injector,   $$AnimateRunner,   $$Map,   $$rAFScheduler) {\n\n    var animationQueue = [];\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function sortAnimations(animations) {\n      var tree = { children: [] };\n      var i, lookup = new $$Map();\n\n      // this is done first beforehand so that the map\n      // is filled with a list of the elements that will be animated\n      for (i = 0; i < animations.length; i++) {\n        var animation = animations[i];\n        lookup.set(animation.domNode, animations[i] = {\n          domNode: animation.domNode,\n          fn: animation.fn,\n          children: []\n        });\n      }\n\n      for (i = 0; i < animations.length; i++) {\n        processNode(animations[i]);\n      }\n\n      return flatten(tree);\n\n      function processNode(entry) {\n        if (entry.processed) return entry;\n        entry.processed = true;\n\n        var elementNode = entry.domNode;\n        var parentNode = elementNode.parentNode;\n        lookup.set(elementNode, entry);\n\n        var parentEntry;\n        while (parentNode) {\n          parentEntry = lookup.get(parentNode);\n          if (parentEntry) {\n            if (!parentEntry.processed) {\n              parentEntry = processNode(parentEntry);\n            }\n            break;\n          }\n          parentNode = parentNode.parentNode;\n        }\n\n        (parentEntry || tree).children.push(entry);\n        return entry;\n      }\n\n      function flatten(tree) {\n        var result = [];\n        var queue = [];\n        var i;\n\n        for (i = 0; i < tree.children.length; i++) {\n          queue.push(tree.children[i]);\n        }\n\n        var remainingLevelEntries = queue.length;\n        var nextLevelEntries = 0;\n        var row = [];\n\n        for (i = 0; i < queue.length; i++) {\n          var entry = queue[i];\n          if (remainingLevelEntries <= 0) {\n            remainingLevelEntries = nextLevelEntries;\n            nextLevelEntries = 0;\n            result.push(row);\n            row = [];\n          }\n          row.push(entry.fn);\n          entry.children.forEach(function(childEntry) {\n            nextLevelEntries++;\n            queue.push(childEntry);\n          });\n          remainingLevelEntries--;\n        }\n\n        if (row.length) {\n          result.push(row);\n        }\n\n        return result;\n      }\n    }\n\n    // TODO(matsko): document the signature in a better way\n    return function(element, event, options) {\n      options = prepareAnimationOptions(options);\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      // there is no animation at the current moment, however\n      // these runner methods will get later updated with the\n      // methods leading into the driver's end/cancel methods\n      // for now they just stop the animation from starting\n      var runner = new $$AnimateRunner({\n        end: function() { close(); },\n        cancel: function() { close(true); }\n      });\n\n      if (!drivers.length) {\n        close();\n        return runner;\n      }\n\n      setRunner(element, runner);\n\n      var classes = mergeClasses(element.attr('class'), mergeClasses(options.addClass, options.removeClass));\n      var tempClasses = options.tempClasses;\n      if (tempClasses) {\n        classes += ' ' + tempClasses;\n        options.tempClasses = null;\n      }\n\n      var prepareClassName;\n      if (isStructural) {\n        prepareClassName = 'ng-' + event + PREPARE_CLASS_SUFFIX;\n        $$jqLite.addClass(element, prepareClassName);\n      }\n\n      animationQueue.push({\n        // this data is used by the postDigest code and passed into\n        // the driver step function\n        element: element,\n        classes: classes,\n        event: event,\n        structural: isStructural,\n        options: options,\n        beforeStart: beforeStart,\n        close: close\n      });\n\n      element.on('$destroy', handleDestroyedElement);\n\n      // we only want there to be one function called within the post digest\n      // block. This way we can group animations for all the animations that\n      // were apart of the same postDigest flush call.\n      if (animationQueue.length > 1) return runner;\n\n      $rootScope.$$postDigest(function() {\n        var animations = [];\n        forEach(animationQueue, function(entry) {\n          // the element was destroyed early on which removed the runner\n          // form its storage. This means we can't animate this element\n          // at all and it already has been closed due to destruction.\n          if (getRunner(entry.element)) {\n            animations.push(entry);\n          } else {\n            entry.close();\n          }\n        });\n\n        // now any future animations will be in another postDigest\n        animationQueue.length = 0;\n\n        var groupedAnimations = groupAnimations(animations);\n        var toBeSortedAnimations = [];\n\n        forEach(groupedAnimations, function(animationEntry) {\n          toBeSortedAnimations.push({\n            domNode: getDomNode(animationEntry.from ? animationEntry.from.element : animationEntry.element),\n            fn: function triggerAnimationStart() {\n              // it's important that we apply the `ng-animate` CSS class and the\n              // temporary classes before we do any driver invoking since these\n              // CSS classes may be required for proper CSS detection.\n              animationEntry.beforeStart();\n\n              var startAnimationFn, closeFn = animationEntry.close;\n\n              // in the event that the element was removed before the digest runs or\n              // during the RAF sequencing then we should not trigger the animation.\n              var targetElement = animationEntry.anchors\n                  ? (animationEntry.from.element || animationEntry.to.element)\n                  : animationEntry.element;\n\n              if (getRunner(targetElement)) {\n                var operation = invokeFirstDriver(animationEntry);\n                if (operation) {\n                  startAnimationFn = operation.start;\n                }\n              }\n\n              if (!startAnimationFn) {\n                closeFn();\n              } else {\n                var animationRunner = startAnimationFn();\n                animationRunner.done(function(status) {\n                  closeFn(!status);\n                });\n                updateAnimationRunners(animationEntry, animationRunner);\n              }\n            }\n          });\n        });\n\n        // we need to sort each of the animations in order of parent to child\n        // relationships. This ensures that the child classes are applied at the\n        // right time.\n        $$rAFScheduler(sortAnimations(toBeSortedAnimations));\n      });\n\n      return runner;\n\n      // TODO(matsko): change to reference nodes\n      function getAnchorNodes(node) {\n        var SELECTOR = '[' + NG_ANIMATE_REF_ATTR + ']';\n        var items = node.hasAttribute(NG_ANIMATE_REF_ATTR)\n              ? [node]\n              : node.querySelectorAll(SELECTOR);\n        var anchors = [];\n        forEach(items, function(node) {\n          var attr = node.getAttribute(NG_ANIMATE_REF_ATTR);\n          if (attr && attr.length) {\n            anchors.push(node);\n          }\n        });\n        return anchors;\n      }\n\n      function groupAnimations(animations) {\n        var preparedAnimations = [];\n        var refLookup = {};\n        forEach(animations, function(animation, index) {\n          var element = animation.element;\n          var node = getDomNode(element);\n          var event = animation.event;\n          var enterOrMove = ['enter', 'move'].indexOf(event) >= 0;\n          var anchorNodes = animation.structural ? getAnchorNodes(node) : [];\n\n          if (anchorNodes.length) {\n            var direction = enterOrMove ? 'to' : 'from';\n\n            forEach(anchorNodes, function(anchor) {\n              var key = anchor.getAttribute(NG_ANIMATE_REF_ATTR);\n              refLookup[key] = refLookup[key] || {};\n              refLookup[key][direction] = {\n                animationID: index,\n                element: jqLite(anchor)\n              };\n            });\n          } else {\n            preparedAnimations.push(animation);\n          }\n        });\n\n        var usedIndicesLookup = {};\n        var anchorGroups = {};\n        forEach(refLookup, function(operations, key) {\n          var from = operations.from;\n          var to = operations.to;\n\n          if (!from || !to) {\n            // only one of these is set therefore we can't have an\n            // anchor animation since all three pieces are required\n            var index = from ? from.animationID : to.animationID;\n            var indexKey = index.toString();\n            if (!usedIndicesLookup[indexKey]) {\n              usedIndicesLookup[indexKey] = true;\n              preparedAnimations.push(animations[index]);\n            }\n            return;\n          }\n\n          var fromAnimation = animations[from.animationID];\n          var toAnimation = animations[to.animationID];\n          var lookupKey = from.animationID.toString();\n          if (!anchorGroups[lookupKey]) {\n            var group = anchorGroups[lookupKey] = {\n              structural: true,\n              beforeStart: function() {\n                fromAnimation.beforeStart();\n                toAnimation.beforeStart();\n              },\n              close: function() {\n                fromAnimation.close();\n                toAnimation.close();\n              },\n              classes: cssClassesIntersection(fromAnimation.classes, toAnimation.classes),\n              from: fromAnimation,\n              to: toAnimation,\n              anchors: [] // TODO(matsko): change to reference nodes\n            };\n\n            // the anchor animations require that the from and to elements both have at least\n            // one shared CSS class which effectively marries the two elements together to use\n            // the same animation driver and to properly sequence the anchor animation.\n            if (group.classes.length) {\n              preparedAnimations.push(group);\n            } else {\n              preparedAnimations.push(fromAnimation);\n              preparedAnimations.push(toAnimation);\n            }\n          }\n\n          anchorGroups[lookupKey].anchors.push({\n            'out': from.element, 'in': to.element\n          });\n        });\n\n        return preparedAnimations;\n      }\n\n      function cssClassesIntersection(a,b) {\n        a = a.split(' ');\n        b = b.split(' ');\n        var matches = [];\n\n        for (var i = 0; i < a.length; i++) {\n          var aa = a[i];\n          if (aa.substring(0,3) === 'ng-') continue;\n\n          for (var j = 0; j < b.length; j++) {\n            if (aa === b[j]) {\n              matches.push(aa);\n              break;\n            }\n          }\n        }\n\n        return matches.join(' ');\n      }\n\n      function invokeFirstDriver(animationDetails) {\n        // we loop in reverse order since the more general drivers (like CSS and JS)\n        // may attempt more elements, but custom drivers are more particular\n        for (var i = drivers.length - 1; i >= 0; i--) {\n          var driverName = drivers[i];\n          var factory = $injector.get(driverName);\n          var driver = factory(animationDetails);\n          if (driver) {\n            return driver;\n          }\n        }\n      }\n\n      function beforeStart() {\n        element.addClass(NG_ANIMATE_CLASSNAME);\n        if (tempClasses) {\n          $$jqLite.addClass(element, tempClasses);\n        }\n        if (prepareClassName) {\n          $$jqLite.removeClass(element, prepareClassName);\n          prepareClassName = null;\n        }\n      }\n\n      function updateAnimationRunners(animation, newRunner) {\n        if (animation.from && animation.to) {\n          update(animation.from.element);\n          update(animation.to.element);\n        } else {\n          update(animation.element);\n        }\n\n        function update(element) {\n          var runner = getRunner(element);\n          if (runner) runner.setHost(newRunner);\n        }\n      }\n\n      function handleDestroyedElement() {\n        var runner = getRunner(element);\n        if (runner && (event !== 'leave' || !options.$$domOperationFired)) {\n          runner.end();\n        }\n      }\n\n      function close(rejected) {\n        element.off('$destroy', handleDestroyedElement);\n        removeRunner(element);\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n\n        if (tempClasses) {\n          $$jqLite.removeClass(element, tempClasses);\n        }\n\n        element.removeClass(NG_ANIMATE_CLASSNAME);\n        runner.complete(!rejected);\n      }\n    };\n  }];\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateSwap\n * @restrict A\n * @scope\n *\n * @description\n *\n * ngAnimateSwap is a animation-oriented directive that allows for the container to\n * be removed and entered in whenever the associated expression changes. A\n * common usecase for this directive is a rotating banner or slider component which\n * contains one image being present at a time. When the active image changes\n * then the old image will perform a `leave` animation and the new element\n * will be inserted via an `enter` animation.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|--------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the new element is inserted to the DOM  |\n * | {@link ng.$animate#leave leave}  | when the old element is removed from the DOM |\n *\n * @example\n * <example name=\"ngAnimateSwap-directive\" module=\"ngAnimateSwapExample\"\n *          deps=\"angular-animate.js\"\n *          animations=\"true\" fixBase=\"true\">\n *   <file name=\"index.html\">\n *     <div class=\"container\" ng-controller=\"AppCtrl\">\n *       <div ng-animate-swap=\"number\" class=\"cell swap-animation\" ng-class=\"colorClass(number)\">\n *         {{ number }}\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"script.js\">\n *     angular.module('ngAnimateSwapExample', ['ngAnimate'])\n *       .controller('AppCtrl', ['$scope', '$interval', function($scope, $interval) {\n *         $scope.number = 0;\n *         $interval(function() {\n *           $scope.number++;\n *         }, 1000);\n *\n *         var colors = ['red','blue','green','yellow','orange'];\n *         $scope.colorClass = function(number) {\n *           return colors[number % colors.length];\n *         };\n *       }]);\n *   </file>\n *  <file name=\"animations.css\">\n *  .container {\n *    height:250px;\n *    width:250px;\n *    position:relative;\n *    overflow:hidden;\n *    border:2px solid black;\n *  }\n *  .container .cell {\n *    font-size:150px;\n *    text-align:center;\n *    line-height:250px;\n *    position:absolute;\n *    top:0;\n *    left:0;\n *    right:0;\n *    border-bottom:2px solid black;\n *  }\n *  .swap-animation.ng-enter, .swap-animation.ng-leave {\n *    transition:0.5s linear all;\n *  }\n *  .swap-animation.ng-enter {\n *    top:-250px;\n *  }\n *  .swap-animation.ng-enter-active {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave-active {\n *    top:250px;\n *  }\n *  .red { background:red; }\n *  .green { background:green; }\n *  .blue { background:blue; }\n *  .yellow { background:yellow; }\n *  .orange { background:orange; }\n *  </file>\n * </example>\n */\nvar ngAnimateSwapDirective = ['$animate', '$rootScope', function($animate, $rootScope) {\n  return {\n    restrict: 'A',\n    transclude: 'element',\n    terminal: true,\n    priority: 600, // we use 600 here to ensure that the directive is caught before others\n    link: function(scope, $element, attrs, ctrl, $transclude) {\n      var previousElement, previousScope;\n      scope.$watchCollection(attrs.ngAnimateSwap || attrs['for'], function(value) {\n        if (previousElement) {\n          $animate.leave(previousElement);\n        }\n        if (previousScope) {\n          previousScope.$destroy();\n          previousScope = null;\n        }\n        if (value || value === 0) {\n          previousScope = scope.$new();\n          $transclude(previousScope, function(element) {\n            previousElement = element;\n            $animate.enter(element, null, $element);\n          });\n        }\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc module\n * @name ngAnimate\n * @description\n *\n * The `ngAnimate` module provides support for CSS-based animations (keyframes and transitions) as well as JavaScript-based animations via\n * callback hooks. Animations are not enabled by default, however, by including `ngAnimate` the animation hooks are enabled for an AngularJS app.\n *\n * ## Usage\n * Simply put, there are two ways to make use of animations when ngAnimate is used: by using **CSS** and **JavaScript**. The former works purely based\n * using CSS (by using matching CSS selectors/styles) and the latter triggers animations that are registered via `module.animation()`. For\n * both CSS and JS animations the sole requirement is to have a matching `CSS class` that exists both in the registered animation and within\n * the HTML element that the animation will be triggered on.\n *\n * ## Directive Support\n * The following directives are \"animation aware\":\n *\n * | Directive                                                                                                | Supported Animations                                                     |\n * |----------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------|\n * | {@link ng.directive:ngRepeat#animations ngRepeat}                                                        | enter, leave and move                                                    |\n * | {@link ngRoute.directive:ngView#animations ngView}                                                       | enter and leave                                                          |\n * | {@link ng.directive:ngInclude#animations ngInclude}                                                      | enter and leave                                                          |\n * | {@link ng.directive:ngSwitch#animations ngSwitch}                                                        | enter and leave                                                          |\n * | {@link ng.directive:ngIf#animations ngIf}                                                                | enter and leave                                                          |\n * | {@link ng.directive:ngClass#animations ngClass}                                                          | add and remove (the CSS class(es) present)                               |\n * | {@link ng.directive:ngShow#animations ngShow} & {@link ng.directive:ngHide#animations ngHide}            | add and remove (the ng-hide class value)                                 |\n * | {@link ng.directive:form#animations form} & {@link ng.directive:ngModel#animations ngModel}    | add and remove (dirty, pristine, valid, invalid & all other validations) |\n * | {@link module:ngMessages#animations ngMessages}                                                          | add and remove (ng-active & ng-inactive)                                 |\n * | {@link module:ngMessages#animations ngMessage}                                                           | enter and leave                                                          |\n *\n * (More information can be found by visiting each the documentation associated with each directive.)\n *\n * ## CSS-based Animations\n *\n * CSS-based animations with ngAnimate are unique since they require no JavaScript code at all. By using a CSS class that we reference between our HTML\n * and CSS code we can create an animation that will be picked up by AngularJS when an underlying directive performs an operation.\n *\n * The example below shows how an `enter` animation can be made possible on an element using `ng-if`:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"fade\">\n *    Fade me in out\n * </div>\n * <button ng-click=\"bool=true\">Fade In!</button>\n * <button ng-click=\"bool=false\">Fade Out!</button>\n * ```\n *\n * Notice the CSS class **fade**? We can now create the CSS transition code that references this class:\n *\n * ```css\n * /&#42; The starting CSS styles for the enter animation &#42;/\n * .fade.ng-enter {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n *\n * /&#42; The finishing CSS styles for the enter animation &#42;/\n * .fade.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * ```\n *\n * The key thing to remember here is that, depending on the animation event (which each of the directives above trigger depending on what's going on) two\n * generated CSS classes will be applied to the element; in the example above we have `.ng-enter` and `.ng-enter-active`. For CSS transitions, the transition\n * code **must** be defined within the starting CSS class (in this case `.ng-enter`). The destination class is what the transition will animate towards.\n *\n * If for example we wanted to create animations for `leave` and `move` (ngRepeat triggers move) then we can do so using the same CSS naming conventions:\n *\n * ```css\n * /&#42; now the element will fade out before it is removed from the DOM &#42;/\n * .fade.ng-leave {\n *   transition:0.5s linear all;\n *   opacity:1;\n * }\n * .fade.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * We can also make use of **CSS Keyframes** by referencing the keyframe animation within the starting CSS class:\n *\n * ```css\n * /&#42; there is no need to define anything inside of the destination\n * CSS class since the keyframe will take charge of the animation &#42;/\n * .fade.ng-leave {\n *   animation: my_fade_animation 0.5s linear;\n *   -webkit-animation: my_fade_animation 0.5s linear;\n * }\n *\n * @keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n *\n * @-webkit-keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n * ```\n *\n * Feel free also mix transitions and keyframes together as well as any other CSS classes on the same element.\n *\n * ### CSS Class-based Animations\n *\n * Class-based animations (animations that are triggered via `ngClass`, `ngShow`, `ngHide` and some other directives) have a slightly different\n * naming convention. Class-based animations are basic enough that a standard transition or keyframe can be referenced on the class being added\n * and removed.\n *\n * For example if we wanted to do a CSS animation for `ngHide` then we place an animation on the `.ng-hide` CSS class:\n *\n * ```html\n * <div ng-show=\"bool\" class=\"fade\">\n *   Show and hide me\n * </div>\n * <button ng-click=\"bool=!bool\">Toggle</button>\n *\n * <style>\n * .fade.ng-hide {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n * </style>\n * ```\n *\n * All that is going on here with ngShow/ngHide behind the scenes is the `.ng-hide` class is added/removed (when the hidden state is valid). Since\n * ngShow and ngHide are animation aware then we can match up a transition and ngAnimate handles the rest.\n *\n * In addition the addition and removal of the CSS class, ngAnimate also provides two helper methods that we can use to further decorate the animation\n * with CSS styles.\n *\n * ```html\n * <div ng-class=\"{on:onOff}\" class=\"highlight\">\n *   Highlight this box\n * </div>\n * <button ng-click=\"onOff=!onOff\">Toggle</button>\n *\n * <style>\n * .highlight {\n *   transition:0.5s linear all;\n * }\n * .highlight.on-add {\n *   background:white;\n * }\n * .highlight.on {\n *   background:yellow;\n * }\n * .highlight.on-remove {\n *   background:black;\n * }\n * </style>\n * ```\n *\n * We can also make use of CSS keyframes by placing them within the CSS classes.\n *\n *\n * ### CSS Staggering Animations\n * A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a\n * curtain-like effect. The ngAnimate module (versions >=1.2) supports staggering animations and the stagger effect can be\n * performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for\n * the animation. The style property expected within the stagger class can either be a **transition-delay** or an\n * **animation-delay** property (or both if your animation contains both transitions and keyframe animations).\n *\n * ```css\n * .my-animation.ng-enter {\n *   /&#42; standard transition code &#42;/\n *   transition: 1s linear all;\n *   opacity:0;\n * }\n * .my-animation.ng-enter-stagger {\n *   /&#42; this will have a 100ms delay between each successive leave animation &#42;/\n *   transition-delay: 0.1s;\n *\n *   /&#42; As of 1.4.4, this must always be set: it signals ngAnimate\n *     to not accidentally inherit a delay property from another CSS class &#42;/\n *   transition-duration: 0s;\n *\n *   /&#42; if you are using animations instead of transitions you should configure as follows:\n *     animation-delay: 0.1s;\n *     animation-duration: 0s; &#42;/\n * }\n * .my-animation.ng-enter.ng-enter-active {\n *   /&#42; standard transition styles &#42;/\n *   opacity:1;\n * }\n * ```\n *\n * Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations\n * on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this\n * are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation\n * will also be reset if one or more animation frames have passed since the multiple calls to `$animate` were fired.\n *\n * The following code will issue the **ng-leave-stagger** event on the element provided:\n *\n * ```js\n * var kids = parent.children();\n *\n * $animate.leave(kids[0]); //stagger index=0\n * $animate.leave(kids[1]); //stagger index=1\n * $animate.leave(kids[2]); //stagger index=2\n * $animate.leave(kids[3]); //stagger index=3\n * $animate.leave(kids[4]); //stagger index=4\n *\n * window.requestAnimationFrame(function() {\n *   //stagger has reset itself\n *   $animate.leave(kids[5]); //stagger index=0\n *   $animate.leave(kids[6]); //stagger index=1\n *\n *   $scope.$digest();\n * });\n * ```\n *\n * Stagger animations are currently only supported within CSS-defined animations.\n *\n * ### The `ng-animate` CSS class\n *\n * When ngAnimate is animating an element it will apply the `ng-animate` CSS class to the element for the duration of the animation.\n * This is a temporary CSS class and it will be removed once the animation is over (for both JavaScript and CSS-based animations).\n *\n * Therefore, animations can be applied to an element using this temporary class directly via CSS.\n *\n * ```css\n * .zipper.ng-animate {\n *   transition:0.5s linear all;\n * }\n * .zipper.ng-enter {\n *   opacity:0;\n * }\n * .zipper.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * .zipper.ng-leave {\n *   opacity:1;\n * }\n * .zipper.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * (Note that the `ng-animate` CSS class is reserved and it cannot be applied on an element directly since ngAnimate will always remove\n * the CSS class once an animation has completed.)\n *\n *\n * ### The `ng-[event]-prepare` class\n *\n * This is a special class that can be used to prevent unwanted flickering / flash of content before\n * the actual animation starts. The class is added as soon as an animation is initialized, but removed\n * before the actual animation starts (after waiting for a $digest).\n * It is also only added for *structural* animations (`enter`, `move`, and `leave`).\n *\n * In practice, flickering can appear when nesting elements with structural animations such as `ngIf`\n * into elements that have class-based animations such as `ngClass`.\n *\n * ```html\n * <div ng-class=\"{red: myProp}\">\n *   <div ng-class=\"{blue: myProp}\">\n *     <div class=\"message\" ng-if=\"myProp\"></div>\n *   </div>\n * </div>\n * ```\n *\n * It is possible that during the `enter` animation, the `.message` div will be briefly visible before it starts animating.\n * In that case, you can add styles to the CSS that make sure the element stays hidden before the animation starts:\n *\n * ```css\n * .message.ng-enter-prepare {\n *   opacity: 0;\n * }\n *\n * ```\n *\n * ## JavaScript-based Animations\n *\n * ngAnimate also allows for animations to be consumed by JavaScript code. The approach is similar to CSS-based animations (where there is a shared\n * CSS class that is referenced in our HTML code) but in addition we need to register the JavaScript animation on the module. By making use of the\n * `module.animation()` module function we can register the animation.\n *\n * Let's see an example of a enter/leave animation using `ngRepeat`:\n *\n * ```html\n * <div ng-repeat=\"item in items\" class=\"slide\">\n *   {{ item }}\n * </div>\n * ```\n *\n * See the **slide** CSS class? Let's use that class to define an animation that we'll structure in our module code by using `module.animation`:\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     // make note that other events (like addClass/removeClass)\n *     // have different function input parameters\n *     enter: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *\n *       // remember to call doneFn so that AngularJS\n *       // knows that the animation has concluded\n *     },\n *\n *     move: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *     },\n *\n *     leave: function(element, doneFn) {\n *       jQuery(element).fadeOut(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing about JS-based animations is that we can inject other services and make use of advanced animation libraries such as\n * greensock.js and velocity.js.\n *\n * If our animation code class-based (meaning that something like `ngClass`, `ngHide` and `ngShow` triggers it) then we can still define\n * our animations inside of the same registered animation, however, the function input arguments are a bit different:\n *\n * ```html\n * <div ng-class=\"color\" class=\"colorful\">\n *   this box is moody\n * </div>\n * <button ng-click=\"color='red'\">Change to red</button>\n * <button ng-click=\"color='blue'\">Change to blue</button>\n * <button ng-click=\"color='green'\">Change to green</button>\n * ```\n *\n * ```js\n * myModule.animation('.colorful', [function() {\n *   return {\n *     addClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     removeClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     setClass: function(element, addedClass, removedClass, doneFn) {\n *       // do some cool animation and call the doneFn\n *     }\n *   }\n * }]);\n * ```\n *\n * ## CSS + JS Animations Together\n *\n * AngularJS 1.4 and higher has taken steps to make the amalgamation of CSS and JS animations more flexible. However, unlike earlier versions of AngularJS,\n * defining CSS and JS animations to work off of the same CSS class will not work anymore. Therefore the example below will only result in **JS animations taking\n * charge of the animation**:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"slide\">\n *   Slide in and out\n * </div>\n * ```\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     enter: function(element, doneFn) {\n *       jQuery(element).slideIn(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * ```css\n * .slide.ng-enter {\n *   transition:0.5s linear all;\n *   transform:translateY(-100px);\n * }\n * .slide.ng-enter.ng-enter-active {\n *   transform:translateY(0);\n * }\n * ```\n *\n * Does this mean that CSS and JS animations cannot be used together? Do JS-based animations always have higher priority? We can make up for the\n * lack of CSS animations by using the `$animateCss` service to trigger our own tweaked-out, CSS-based animations directly from\n * our own JS-based animation code:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n*        // this will trigger `.slide.ng-enter` and `.slide.ng-enter-active`.\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing here is that we can save bandwidth by sticking to our CSS-based animation code and we don't need to rely on a 3rd-party animation framework.\n *\n * The `$animateCss` service is very powerful since we can feed in all kinds of extra properties that will be evaluated and fed into a CSS transition or\n * keyframe animation. For example if we wanted to animate the height of an element while adding and removing classes then we can do so by providing that\n * data into `$animateCss` directly:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true,\n *         addClass: 'maroon-setting',\n *         from: { height:0 },\n *         to: { height: 200 }\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Now we can fill in the rest via our transition CSS code:\n *\n * ```css\n * /&#42; the transition tells ngAnimate to make the animation happen &#42;/\n * .slide.ng-enter { transition:0.5s linear all; }\n *\n * /&#42; this extra CSS class will be absorbed into the transition\n * since the $animateCss code is adding the class &#42;/\n * .maroon-setting { background:red; }\n * ```\n *\n * And `$animateCss` will figure out the rest. Just make sure to have the `done()` callback fire the `doneFn` function to signal when the animation is over.\n *\n * To learn more about what's possible be sure to visit the {@link ngAnimate.$animateCss $animateCss service}.\n *\n * ## Animation Anchoring (via `ng-animate-ref`)\n *\n * ngAnimate in AngularJS 1.4 comes packed with the ability to cross-animate elements between\n * structural areas of an application (like views) by pairing up elements using an attribute\n * called `ng-animate-ref`.\n *\n * Let's say for example we have two views that are managed by `ng-view` and we want to show\n * that there is a relationship between two components situated in within these views. By using the\n * `ng-animate-ref` attribute we can identify that the two components are paired together and we\n * can then attach an animation, which is triggered when the view changes.\n *\n * Say for example we have the following template code:\n *\n * ```html\n * <!-- index.html -->\n * <div ng-view class=\"view-animation\">\n * </div>\n *\n * <!-- home.html -->\n * <a href=\"#/banner-page\">\n *   <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * </a>\n *\n * <!-- banner-page.html -->\n * <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * ```\n *\n * Now, when the view changes (once the link is clicked), ngAnimate will examine the\n * HTML contents to see if there is a match reference between any components in the view\n * that is leaving and the view that is entering. It will scan both the view which is being\n * removed (leave) and inserted (enter) to see if there are any paired DOM elements that\n * contain a matching ref value.\n *\n * The two images match since they share the same ref value. ngAnimate will now create a\n * transport element (which is a clone of the first image element) and it will then attempt\n * to animate to the position of the second image element in the next view. For the animation to\n * work a special CSS class called `ng-anchor` will be added to the transported element.\n *\n * We can now attach a transition onto the `.banner.ng-anchor` CSS class and then\n * ngAnimate will handle the entire transition for us as well as the addition and removal of\n * any changes of CSS classes between the elements:\n *\n * ```css\n * .banner.ng-anchor {\n *   /&#42; this animation will last for 1 second since there are\n *          two phases to the animation (an `in` and an `out` phase) &#42;/\n *   transition:0.5s linear all;\n * }\n * ```\n *\n * We also **must** include animations for the views that are being entered and removed\n * (otherwise anchoring wouldn't be possible since the new view would be inserted right away).\n *\n * ```css\n * .view-animation.ng-enter, .view-animation.ng-leave {\n *   transition:0.5s linear all;\n *   position:fixed;\n *   left:0;\n *   top:0;\n *   width:100%;\n * }\n * .view-animation.ng-enter {\n *   transform:translateX(100%);\n * }\n * .view-animation.ng-leave,\n * .view-animation.ng-enter.ng-enter-active {\n *   transform:translateX(0%);\n * }\n * .view-animation.ng-leave.ng-leave-active {\n *   transform:translateX(-100%);\n * }\n * ```\n *\n * Now we can jump back to the anchor animation. When the animation happens, there are two stages that occur:\n * an `out` and an `in` stage. The `out` stage happens first and that is when the element is animated away\n * from its origin. Once that animation is over then the `in` stage occurs which animates the\n * element to its destination. The reason why there are two animations is to give enough time\n * for the enter animation on the new element to be ready.\n *\n * The example above sets up a transition for both the in and out phases, but we can also target the out or\n * in phases directly via `ng-anchor-out` and `ng-anchor-in`.\n *\n * ```css\n * .banner.ng-anchor-out {\n *   transition: 0.5s linear all;\n *\n *   /&#42; the scale will be applied during the out animation,\n *          but will be animated away when the in animation runs &#42;/\n *   transform: scale(1.2);\n * }\n *\n * .banner.ng-anchor-in {\n *   transition: 1s linear all;\n * }\n * ```\n *\n *\n *\n *\n * ### Anchoring Demo\n *\n  <example module=\"anchoringExample\"\n           name=\"anchoringExample\"\n           id=\"anchoringExample\"\n           deps=\"angular-animate.js;angular-route.js\"\n           animations=\"true\">\n    <file name=\"index.html\">\n      <a href=\"#!/\">Home</a>\n      <hr />\n      <div class=\"view-container\">\n        <div ng-view class=\"view\"></div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('anchoringExample', ['ngAnimate', 'ngRoute'])\n        .config(['$routeProvider', function($routeProvider) {\n          $routeProvider.when('/', {\n            templateUrl: 'home.html',\n            controller: 'HomeController as home'\n          });\n          $routeProvider.when('/profile/:id', {\n            templateUrl: 'profile.html',\n            controller: 'ProfileController as profile'\n          });\n        }])\n        .run(['$rootScope', function($rootScope) {\n          $rootScope.records = [\n            { id: 1, title: 'Miss Beulah Roob' },\n            { id: 2, title: 'Trent Morissette' },\n            { id: 3, title: 'Miss Ava Pouros' },\n            { id: 4, title: 'Rod Pouros' },\n            { id: 5, title: 'Abdul Rice' },\n            { id: 6, title: 'Laurie Rutherford Sr.' },\n            { id: 7, title: 'Nakia McLaughlin' },\n            { id: 8, title: 'Jordon Blanda DVM' },\n            { id: 9, title: 'Rhoda Hand' },\n            { id: 10, title: 'Alexandrea Sauer' }\n          ];\n        }])\n        .controller('HomeController', [function() {\n          //empty\n        }])\n        .controller('ProfileController', ['$rootScope', '$routeParams',\n            function ProfileController($rootScope, $routeParams) {\n          var index = parseInt($routeParams.id, 10);\n          var record = $rootScope.records[index - 1];\n\n          this.title = record.title;\n          this.id = record.id;\n        }]);\n    </file>\n    <file name=\"home.html\">\n      <h2>Welcome to the home page</h1>\n      <p>Please click on an element</p>\n      <a class=\"record\"\n         ng-href=\"#!/profile/{{ record.id }}\"\n         ng-animate-ref=\"{{ record.id }}\"\n         ng-repeat=\"record in records\">\n        {{ record.title }}\n      </a>\n    </file>\n    <file name=\"profile.html\">\n      <div class=\"profile record\" ng-animate-ref=\"{{ profile.id }}\">\n        {{ profile.title }}\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .record {\n        display:block;\n        font-size:20px;\n      }\n      .profile {\n        background:black;\n        color:white;\n        font-size:100px;\n      }\n      .view-container {\n        position:relative;\n      }\n      .view-container > .view.ng-animate {\n        position:absolute;\n        top:0;\n        left:0;\n        width:100%;\n        min-height:500px;\n      }\n      .view.ng-enter, .view.ng-leave,\n      .record.ng-anchor {\n        transition:0.5s linear all;\n      }\n      .view.ng-enter {\n        transform:translateX(100%);\n      }\n      .view.ng-enter.ng-enter-active, .view.ng-leave {\n        transform:translateX(0%);\n      }\n      .view.ng-leave.ng-leave-active {\n        transform:translateX(-100%);\n      }\n      .record.ng-anchor-out {\n        background:red;\n      }\n    </file>\n  </example>\n *\n * ### How is the element transported?\n *\n * When an anchor animation occurs, ngAnimate will clone the starting element and position it exactly where the starting\n * element is located on screen via absolute positioning. The cloned element will be placed inside of the root element\n * of the application (where ng-app was defined) and all of the CSS classes of the starting element will be applied. The\n * element will then animate into the `out` and `in` animations and will eventually reach the coordinates and match\n * the dimensions of the destination element. During the entire animation a CSS class of `.ng-animate-shim` will be applied\n * to both the starting and destination elements in order to hide them from being visible (the CSS styling for the class\n * is: `visibility:hidden`). Once the anchor reaches its destination then it will be removed and the destination element\n * will become visible since the shim class will be removed.\n *\n * ### How is the morphing handled?\n *\n * CSS Anchoring relies on transitions and keyframes and the internal code is intelligent enough to figure out\n * what CSS classes differ between the starting element and the destination element. These different CSS classes\n * will be added/removed on the anchor element and a transition will be applied (the transition that is provided\n * in the anchor class). Long story short, ngAnimate will figure out what classes to add and remove which will\n * make the transition of the element as smooth and automatic as possible. Be sure to use simple CSS classes that\n * do not rely on DOM nesting structure so that the anchor element appears the same as the starting element (since\n * the cloned element is placed inside of root element which is likely close to the body element).\n *\n * Note that if the root element is on the `<html>` element then the cloned node will be placed inside of body.\n *\n *\n * ## Using $animate in your directive code\n *\n * So far we've explored how to feed in animations into an AngularJS application, but how do we trigger animations within our own directives in our application?\n * By injecting the `$animate` service into our directive code, we can trigger structural and class-based hooks which can then be consumed by animations. Let's\n * imagine we have a greeting box that shows and hides itself when the data changes\n *\n * ```html\n * <greeting-box active=\"onOrOff\">Hi there</greeting-box>\n * ```\n *\n * ```js\n * ngModule.directive('greetingBox', ['$animate', function($animate) {\n *   return function(scope, element, attrs) {\n *     attrs.$observe('active', function(value) {\n *       value ? $animate.addClass(element, 'on') : $animate.removeClass(element, 'on');\n *     });\n *   });\n * }]);\n * ```\n *\n * Now the `on` CSS class is added and removed on the greeting box component. Now if we add a CSS class on top of the greeting box element\n * in our HTML code then we can trigger a CSS or JS animation to happen.\n *\n * ```css\n * /&#42; normally we would create a CSS class to reference on the element &#42;/\n * greeting-box.on { transition:0.5s linear all; background:green; color:white; }\n * ```\n *\n * The `$animate` service contains a variety of other methods like `enter`, `leave`, `animate` and `setClass`. To learn more about what's\n * possible be sure to visit the {@link ng.$animate $animate service API page}.\n *\n *\n * ## Callbacks and Promises\n *\n * When `$animate` is called it returns a promise that can be used to capture when the animation has ended. Therefore if we were to trigger\n * an animation (within our directive code) then we can continue performing directive and scope related activities after the animation has\n * ended by chaining onto the returned promise that animation method returns.\n *\n * ```js\n * // somewhere within the depths of the directive\n * $animate.enter(element, parent).then(function() {\n *   //the animation has completed\n * });\n * ```\n *\n * (Note that earlier versions of AngularJS prior to v1.4 required the promise code to be wrapped using `$scope.$apply(...)`. This is not the case\n * anymore.)\n *\n * In addition to the animation promise, we can also make use of animation-related callbacks within our directives and controller code by registering\n * an event listener using the `$animate` service. Let's say for example that an animation was triggered on our view\n * routing controller to hook into that:\n *\n * ```js\n * ngModule.controller('HomePageController', ['$animate', function($animate) {\n *   $animate.on('enter', ngViewElement, function(element) {\n *     // the animation for this route has completed\n *   }]);\n * }])\n * ```\n *\n * (Note that you will need to trigger a digest within the callback to get AngularJS to notice any scope-related changes.)\n */\n\nvar copy;\nvar extend;\nvar forEach;\nvar isArray;\nvar isDefined;\nvar isElement;\nvar isFunction;\nvar isObject;\nvar isString;\nvar isUndefined;\nvar jqLite;\nvar noop;\n\n/**\n * @ngdoc service\n * @name $animate\n * @kind object\n *\n * @description\n * The ngAnimate `$animate` service documentation is the same for the core `$animate` service.\n *\n * Click here {@link ng.$animate to learn more about animations with `$animate`}.\n */\nangular.module('ngAnimate', [], function initAngularHelpers() {\n  // Access helpers from AngularJS core.\n  // Do it inside a `config` block to ensure `window.angular` is available.\n  noop        = angular.noop;\n  copy        = angular.copy;\n  extend      = angular.extend;\n  jqLite      = angular.element;\n  forEach     = angular.forEach;\n  isArray     = angular.isArray;\n  isString    = angular.isString;\n  isObject    = angular.isObject;\n  isUndefined = angular.isUndefined;\n  isDefined   = angular.isDefined;\n  isFunction  = angular.isFunction;\n  isElement   = angular.isElement;\n})\n  .info({ angularVersion: '1.6.10' })\n  .directive('ngAnimateSwap', ngAnimateSwapDirective)\n\n  .directive('ngAnimateChildren', $$AnimateChildrenDirective)\n  .factory('$$rAFScheduler', $$rAFSchedulerFactory)\n\n  .provider('$$animateQueue', $$AnimateQueueProvider)\n  .provider('$$animation', $$AnimationProvider)\n\n  .provider('$animateCss', $AnimateCssProvider)\n  .provider('$$animateCssDriver', $$AnimateCssDriverProvider)\n\n  .provider('$$animateJs', $$AnimateJsProvider)\n  .provider('$$animateJsDriver', $$AnimateJsDriverProvider);\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.6/angular-mocks.js",
    "content": "/**\n * @license AngularJS v1.6.10\n * (c) 2010-2018 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {\n\n'use strict';\n\n/**\n * @ngdoc object\n * @name angular.mock\n * @description\n *\n * Namespace from 'angular-mocks.js' which contains testing related code.\n *\n */\nangular.mock = {};\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n *\n * @description\n * This service is a mock implementation of {@link ng.$browser}. It provides fake\n * implementation for commonly used browser apis that are hard to test, e.g. setTimeout, xhr,\n * cookies, etc.\n *\n * The api of this service is the same as that of the real {@link ng.$browser $browser}, except\n * that there are several helper methods available which can be used in tests.\n */\nangular.mock.$BrowserProvider = function() {\n  this.$get = function() {\n    return new angular.mock.$Browser();\n  };\n};\n\nangular.mock.$Browser = function() {\n  var self = this;\n\n  this.isMock = true;\n  self.$$url = 'http://server/';\n  self.$$lastUrl = self.$$url; // used by url polling fn\n  self.pollFns = [];\n\n  // Testability API\n\n  var outstandingRequestCount = 0;\n  var outstandingRequestCallbacks = [];\n  self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };\n  self.$$completeOutstandingRequest = function(fn) {\n    try {\n      fn();\n    } finally {\n      outstandingRequestCount--;\n      if (!outstandingRequestCount) {\n        while (outstandingRequestCallbacks.length) {\n          outstandingRequestCallbacks.pop()();\n        }\n      }\n    }\n  };\n  self.notifyWhenNoOutstandingRequests = function(callback) {\n    if (outstandingRequestCount) {\n      outstandingRequestCallbacks.push(callback);\n    } else {\n      callback();\n    }\n  };\n\n  // register url polling fn\n\n  self.onUrlChange = function(listener) {\n    self.pollFns.push(\n      function() {\n        if (self.$$lastUrl !== self.$$url || self.$$state !== self.$$lastState) {\n          self.$$lastUrl = self.$$url;\n          self.$$lastState = self.$$state;\n          listener(self.$$url, self.$$state);\n        }\n      }\n    );\n\n    return listener;\n  };\n\n  self.$$applicationDestroyed = angular.noop;\n  self.$$checkUrlChange = angular.noop;\n\n  self.deferredFns = [];\n  self.deferredNextId = 0;\n\n  self.defer = function(fn, delay) {\n    // Note that we do not use `$$incOutstandingRequestCount` or `$$completeOutstandingRequest`\n    // in this mock implementation.\n    delay = delay || 0;\n    self.deferredFns.push({time:(self.defer.now + delay), fn:fn, id: self.deferredNextId});\n    self.deferredFns.sort(function(a, b) { return a.time - b.time;});\n    return self.deferredNextId++;\n  };\n\n\n  /**\n   * @name $browser#defer.now\n   *\n   * @description\n   * Current milliseconds mock time.\n   */\n  self.defer.now = 0;\n\n\n  self.defer.cancel = function(deferId) {\n    var fnIndex;\n\n    angular.forEach(self.deferredFns, function(fn, index) {\n      if (fn.id === deferId) fnIndex = index;\n    });\n\n    if (angular.isDefined(fnIndex)) {\n      self.deferredFns.splice(fnIndex, 1);\n      return true;\n    }\n\n    return false;\n  };\n\n\n  /**\n   * @name $browser#defer.flush\n   *\n   * @description\n   * Flushes all pending requests and executes the defer callbacks.\n   *\n   * @param {number=} number of milliseconds to flush. See {@link #defer.now}\n   */\n  self.defer.flush = function(delay) {\n    var nextTime;\n\n    if (angular.isDefined(delay)) {\n      // A delay was passed so compute the next time\n      nextTime = self.defer.now + delay;\n    } else {\n      if (self.deferredFns.length) {\n        // No delay was passed so set the next time so that it clears the deferred queue\n        nextTime = self.deferredFns[self.deferredFns.length - 1].time;\n      } else {\n        // No delay passed, but there are no deferred tasks so flush - indicates an error!\n        throw new Error('No deferred tasks to be flushed');\n      }\n    }\n\n    while (self.deferredFns.length && self.deferredFns[0].time <= nextTime) {\n      // Increment the time and call the next deferred function\n      self.defer.now = self.deferredFns[0].time;\n      self.deferredFns.shift().fn();\n    }\n\n    // Ensure that the current time is correct\n    self.defer.now = nextTime;\n  };\n\n  self.$$baseHref = '/';\n  self.baseHref = function() {\n    return this.$$baseHref;\n  };\n};\nangular.mock.$Browser.prototype = {\n\n  /**\n   * @name $browser#poll\n   *\n   * @description\n   * run all fns in pollFns\n   */\n  poll: function poll() {\n    angular.forEach(this.pollFns, function(pollFn) {\n      pollFn();\n    });\n  },\n\n  url: function(url, replace, state) {\n    if (angular.isUndefined(state)) {\n      state = null;\n    }\n    if (url) {\n      this.$$url = url;\n      // Native pushState serializes & copies the object; simulate it.\n      this.$$state = angular.copy(state);\n      return this;\n    }\n\n    return this.$$url;\n  },\n\n  state: function() {\n    return this.$$state;\n  }\n};\n\n\n/**\n * @ngdoc provider\n * @name $exceptionHandlerProvider\n *\n * @description\n * Configures the mock implementation of {@link ng.$exceptionHandler} to rethrow or to log errors\n * passed to the `$exceptionHandler`.\n */\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n *\n * @description\n * Mock implementation of {@link ng.$exceptionHandler} that rethrows or logs errors passed\n * to it. See {@link ngMock.$exceptionHandlerProvider $exceptionHandlerProvider} for configuration\n * information.\n *\n *\n * ```js\n *   describe('$exceptionHandlerProvider', function() {\n *\n *     it('should capture log messages and exceptions', function() {\n *\n *       module(function($exceptionHandlerProvider) {\n *         $exceptionHandlerProvider.mode('log');\n *       });\n *\n *       inject(function($log, $exceptionHandler, $timeout) {\n *         $timeout(function() { $log.log(1); });\n *         $timeout(function() { $log.log(2); throw 'banana peel'; });\n *         $timeout(function() { $log.log(3); });\n *         expect($exceptionHandler.errors).toEqual([]);\n *         expect($log.assertEmpty());\n *         $timeout.flush();\n *         expect($exceptionHandler.errors).toEqual(['banana peel']);\n *         expect($log.log.logs).toEqual([[1], [2], [3]]);\n *       });\n *     });\n *   });\n * ```\n */\n\nangular.mock.$ExceptionHandlerProvider = function() {\n  var handler;\n\n  /**\n   * @ngdoc method\n   * @name $exceptionHandlerProvider#mode\n   *\n   * @description\n   * Sets the logging mode.\n   *\n   * @param {string} mode Mode of operation, defaults to `rethrow`.\n   *\n   *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log`\n   *     mode stores an array of errors in `$exceptionHandler.errors`, to allow later assertion of\n   *     them. See {@link ngMock.$log#assertEmpty assertEmpty()} and\n   *     {@link ngMock.$log#reset reset()}.\n   *   - `rethrow`: If any errors are passed to the handler in tests, it typically means that there\n   *     is a bug in the application or test, so this mock will make these tests fail. For any\n   *     implementations that expect exceptions to be thrown, the `rethrow` mode will also maintain\n   *     a log of thrown errors in `$exceptionHandler.errors`.\n   */\n  this.mode = function(mode) {\n\n    switch (mode) {\n      case 'log':\n      case 'rethrow':\n        var errors = [];\n        handler = function(e) {\n          if (arguments.length === 1) {\n            errors.push(e);\n          } else {\n            errors.push([].slice.call(arguments, 0));\n          }\n          if (mode === 'rethrow') {\n            throw e;\n          }\n        };\n        handler.errors = errors;\n        break;\n      default:\n        throw new Error('Unknown mode \\'' + mode + '\\', only \\'log\\'/\\'rethrow\\' modes are allowed!');\n    }\n  };\n\n  this.$get = function() {\n    return handler;\n  };\n\n  this.mode('rethrow');\n};\n\n\n/**\n * @ngdoc service\n * @name $log\n *\n * @description\n * Mock implementation of {@link ng.$log} that gathers all logged messages in arrays\n * (one array per logging level). These arrays are exposed as `logs` property of each of the\n * level-specific log function, e.g. for level `error` the array is exposed as `$log.error.logs`.\n *\n */\nangular.mock.$LogProvider = function() {\n  var debug = true;\n\n  function concat(array1, array2, index) {\n    return array1.concat(Array.prototype.slice.call(array2, index));\n  }\n\n  this.debugEnabled = function(flag) {\n    if (angular.isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = function() {\n    var $log = {\n      log: function() { $log.log.logs.push(concat([], arguments, 0)); },\n      warn: function() { $log.warn.logs.push(concat([], arguments, 0)); },\n      info: function() { $log.info.logs.push(concat([], arguments, 0)); },\n      error: function() { $log.error.logs.push(concat([], arguments, 0)); },\n      debug: function() {\n        if (debug) {\n          $log.debug.logs.push(concat([], arguments, 0));\n        }\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#reset\n     *\n     * @description\n     * Reset all of the logging arrays to empty.\n     */\n    $log.reset = function() {\n      /**\n       * @ngdoc property\n       * @name $log#log.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#log `log()`}.\n       *\n       * @example\n       * ```js\n       * $log.log('Some Log');\n       * var first = $log.log.logs.unshift();\n       * ```\n       */\n      $log.log.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#info.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#info `info()`}.\n       *\n       * @example\n       * ```js\n       * $log.info('Some Info');\n       * var first = $log.info.logs.unshift();\n       * ```\n       */\n      $log.info.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#warn.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#warn `warn()`}.\n       *\n       * @example\n       * ```js\n       * $log.warn('Some Warning');\n       * var first = $log.warn.logs.unshift();\n       * ```\n       */\n      $log.warn.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#error.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#error `error()`}.\n       *\n       * @example\n       * ```js\n       * $log.error('Some Error');\n       * var first = $log.error.logs.unshift();\n       * ```\n       */\n      $log.error.logs = [];\n        /**\n       * @ngdoc property\n       * @name $log#debug.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#debug `debug()`}.\n       *\n       * @example\n       * ```js\n       * $log.debug('Some Error');\n       * var first = $log.debug.logs.unshift();\n       * ```\n       */\n      $log.debug.logs = [];\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#assertEmpty\n     *\n     * @description\n     * Assert that all of the logging methods have no logged messages. If any messages are present,\n     * an exception is thrown.\n     */\n    $log.assertEmpty = function() {\n      var errors = [];\n      angular.forEach(['error', 'warn', 'info', 'log', 'debug'], function(logLevel) {\n        angular.forEach($log[logLevel].logs, function(log) {\n          angular.forEach(log, function(logItem) {\n            errors.push('MOCK $log (' + logLevel + '): ' + String(logItem) + '\\n' +\n                        (logItem.stack || ''));\n          });\n        });\n      });\n      if (errors.length) {\n        errors.unshift('Expected $log to be empty! Either a message was logged unexpectedly, or ' +\n          'an expected log message was not checked and removed:');\n        errors.push('');\n        throw new Error(errors.join('\\n---------\\n'));\n      }\n    };\n\n    $log.reset();\n    return $log;\n  };\n};\n\n\n/**\n * @ngdoc service\n * @name $interval\n *\n * @description\n * Mock implementation of the $interval service.\n *\n * Use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n * time.\n *\n * @param {function()} fn A function that should be called repeatedly.\n * @param {number} delay Number of milliseconds between each function call.\n * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n *   indefinitely.\n * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n * @param {...*=} Pass additional parameters to the executed function.\n * @returns {promise} A promise which will be notified on each iteration.\n */\nangular.mock.$IntervalProvider = function() {\n  this.$get = ['$browser', '$rootScope', '$q', '$$q',\n       function($browser,   $rootScope,   $q,   $$q) {\n    var repeatFns = [],\n        nextRepeatId = 0,\n        now = 0;\n\n    var $interval = function(fn, delay, count, invokeApply) {\n      var hasParams = arguments.length > 4,\n          args = hasParams ? Array.prototype.slice.call(arguments, 4) : [],\n          iteration = 0,\n          skipApply = (angular.isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = (angular.isDefined(count)) ? count : 0;\n      promise.then(null, function() {}, (!hasParams) ? fn : function() {\n        fn.apply(null, args);\n      });\n\n      promise.$$intervalId = nextRepeatId;\n\n      function tick() {\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          var fnIndex;\n          deferred.resolve(iteration);\n\n          angular.forEach(repeatFns, function(fn, index) {\n            if (fn.id === promise.$$intervalId) fnIndex = index;\n          });\n\n          if (angular.isDefined(fnIndex)) {\n            repeatFns.splice(fnIndex, 1);\n          }\n        }\n\n        if (skipApply) {\n          $browser.defer.flush();\n        } else {\n          $rootScope.$apply();\n        }\n      }\n\n      repeatFns.push({\n        nextTime: (now + (delay || 0)),\n        delay: delay || 1,\n        fn: tick,\n        id: nextRepeatId,\n        deferred: deferred\n      });\n      repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n\n      nextRepeatId++;\n      return promise;\n    };\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {promise} promise A promise from calling the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully cancelled.\n     */\n    $interval.cancel = function(promise) {\n      if (!promise) return false;\n      var fnIndex;\n\n      angular.forEach(repeatFns, function(fn, index) {\n        if (fn.id === promise.$$intervalId) fnIndex = index;\n      });\n\n      if (angular.isDefined(fnIndex)) {\n        repeatFns[fnIndex].deferred.promise.then(undefined, function() {});\n        repeatFns[fnIndex].deferred.reject('canceled');\n        repeatFns.splice(fnIndex, 1);\n        return true;\n      }\n\n      return false;\n    };\n\n    /**\n     * @ngdoc method\n     * @name $interval#flush\n     * @description\n     *\n     * Runs interval tasks scheduled to be run in the next `millis` milliseconds.\n     *\n     * @param {number=} millis maximum timeout amount to flush up until.\n     *\n     * @return {number} The amount of time moved forward.\n     */\n    $interval.flush = function(millis) {\n      var before = now;\n      now += millis;\n      while (repeatFns.length && repeatFns[0].nextTime <= now) {\n        var task = repeatFns[0];\n        task.fn();\n        if (task.nextTime === before) {\n          // this can only happen the first time\n          // a zero-delay interval gets triggered\n          task.nextTime++;\n        }\n        task.nextTime += task.delay;\n        repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n      }\n      return millis;\n    };\n\n    return $interval;\n  }];\n};\n\n\nfunction jsonStringToDate(string) {\n  // The R_ISO8061_STR regex is never going to fit into the 100 char limit!\n  // eslit-disable-next-line max-len\n  var R_ISO8061_STR = /^(-?\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d{3}))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d)))?$/;\n\n  var match;\n  if ((match = string.match(R_ISO8061_STR))) {\n    var date = new Date(0),\n        tzHour = 0,\n        tzMin  = 0;\n    if (match[9]) {\n      tzHour = toInt(match[9] + match[10]);\n      tzMin = toInt(match[9] + match[11]);\n    }\n    date.setUTCFullYear(toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n    date.setUTCHours(toInt(match[4] || 0) - tzHour,\n                     toInt(match[5] || 0) - tzMin,\n                     toInt(match[6] || 0),\n                     toInt(match[7] || 0));\n    return date;\n  }\n  return string;\n}\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nfunction padNumberInMock(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while (num.length < digits) num = '0' + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\n/**\n * @ngdoc type\n * @name angular.mock.TzDate\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.\n *\n * Mock of the Date type which has its timezone specified via constructor arg.\n *\n * The main purpose is to create Date-like instances with timezone fixed to the specified timezone\n * offset, so that we can test code that depends on local timezone settings without dependency on\n * the time zone settings of the machine where the code is running.\n *\n * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)\n * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*\n *\n * @example\n * !!!! WARNING !!!!!\n * This is not a complete Date object so only methods that were implemented can be called safely.\n * To make matters worse, TzDate instances inherit stuff from Date via a prototype.\n *\n * We do our best to intercept calls to \"unimplemented\" methods, but since the list of methods is\n * incomplete we might be missing some non-standard methods. This can result in errors like:\n * \"Date.prototype.foo called on incompatible Object\".\n *\n * ```js\n * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');\n * newYearInBratislava.getTimezoneOffset() => -60;\n * newYearInBratislava.getFullYear() => 2010;\n * newYearInBratislava.getMonth() => 0;\n * newYearInBratislava.getDate() => 1;\n * newYearInBratislava.getHours() => 0;\n * newYearInBratislava.getMinutes() => 0;\n * newYearInBratislava.getSeconds() => 0;\n * ```\n *\n */\nangular.mock.TzDate = function(offset, timestamp) {\n  var self = new Date(0);\n  if (angular.isString(timestamp)) {\n    var tsStr = timestamp;\n\n    self.origDate = jsonStringToDate(timestamp);\n\n    timestamp = self.origDate.getTime();\n    if (isNaN(timestamp)) {\n      // eslint-disable-next-line no-throw-literal\n      throw {\n        name: 'Illegal Argument',\n        message: 'Arg \\'' + tsStr + '\\' passed into TzDate constructor is not a valid date string'\n      };\n    }\n  } else {\n    self.origDate = new Date(timestamp);\n  }\n\n  var localOffset = new Date(timestamp).getTimezoneOffset();\n  self.offsetDiff = localOffset * 60 * 1000 - offset * 1000 * 60 * 60;\n  self.date = new Date(timestamp + self.offsetDiff);\n\n  self.getTime = function() {\n    return self.date.getTime() - self.offsetDiff;\n  };\n\n  self.toLocaleDateString = function() {\n    return self.date.toLocaleDateString();\n  };\n\n  self.getFullYear = function() {\n    return self.date.getFullYear();\n  };\n\n  self.getMonth = function() {\n    return self.date.getMonth();\n  };\n\n  self.getDate = function() {\n    return self.date.getDate();\n  };\n\n  self.getHours = function() {\n    return self.date.getHours();\n  };\n\n  self.getMinutes = function() {\n    return self.date.getMinutes();\n  };\n\n  self.getSeconds = function() {\n    return self.date.getSeconds();\n  };\n\n  self.getMilliseconds = function() {\n    return self.date.getMilliseconds();\n  };\n\n  self.getTimezoneOffset = function() {\n    return offset * 60;\n  };\n\n  self.getUTCFullYear = function() {\n    return self.origDate.getUTCFullYear();\n  };\n\n  self.getUTCMonth = function() {\n    return self.origDate.getUTCMonth();\n  };\n\n  self.getUTCDate = function() {\n    return self.origDate.getUTCDate();\n  };\n\n  self.getUTCHours = function() {\n    return self.origDate.getUTCHours();\n  };\n\n  self.getUTCMinutes = function() {\n    return self.origDate.getUTCMinutes();\n  };\n\n  self.getUTCSeconds = function() {\n    return self.origDate.getUTCSeconds();\n  };\n\n  self.getUTCMilliseconds = function() {\n    return self.origDate.getUTCMilliseconds();\n  };\n\n  self.getDay = function() {\n    return self.date.getDay();\n  };\n\n  // provide this method only on browsers that already have it\n  if (self.toISOString) {\n    self.toISOString = function() {\n      return padNumberInMock(self.origDate.getUTCFullYear(), 4) + '-' +\n            padNumberInMock(self.origDate.getUTCMonth() + 1, 2) + '-' +\n            padNumberInMock(self.origDate.getUTCDate(), 2) + 'T' +\n            padNumberInMock(self.origDate.getUTCHours(), 2) + ':' +\n            padNumberInMock(self.origDate.getUTCMinutes(), 2) + ':' +\n            padNumberInMock(self.origDate.getUTCSeconds(), 2) + '.' +\n            padNumberInMock(self.origDate.getUTCMilliseconds(), 3) + 'Z';\n    };\n  }\n\n  //hide all methods not implemented in this mock that the Date prototype exposes\n  var unimplementedMethods = ['getUTCDay',\n      'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',\n      'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',\n      'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',\n      'setYear', 'toDateString', 'toGMTString', 'toJSON', 'toLocaleFormat', 'toLocaleString',\n      'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];\n\n  angular.forEach(unimplementedMethods, function(methodName) {\n    self[methodName] = function() {\n      throw new Error('Method \\'' + methodName + '\\' is not implemented in the TzDate mock');\n    };\n  });\n\n  return self;\n};\n\n//make \"tzDateInstance instanceof Date\" return true\nangular.mock.TzDate.prototype = Date.prototype;\n\n\n/**\n * @ngdoc service\n * @name $animate\n *\n * @description\n * Mock implementation of the {@link ng.$animate `$animate`} service. Exposes two additional methods\n * for testing animations.\n *\n * You need to require the `ngAnimateMock` module in your test suite for instance `beforeEach(module('ngAnimateMock'))`\n */\nangular.mock.animate = angular.module('ngAnimateMock', ['ng'])\n  .info({ angularVersion: '1.6.10' })\n\n  .config(['$provide', function($provide) {\n\n    $provide.factory('$$forceReflow', function() {\n      function reflowFn() {\n        reflowFn.totalReflows++;\n      }\n      reflowFn.totalReflows = 0;\n      return reflowFn;\n    });\n\n    $provide.factory('$$animateAsyncRun', function() {\n      var queue = [];\n      var queueFn = function() {\n        return function(fn) {\n          queue.push(fn);\n        };\n      };\n      queueFn.flush = function() {\n        if (queue.length === 0) return false;\n\n        for (var i = 0; i < queue.length; i++) {\n          queue[i]();\n        }\n        queue = [];\n\n        return true;\n      };\n      return queueFn;\n    });\n\n    $provide.decorator('$$animateJs', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateJsConstructor = function() {\n        var animator = $delegate.apply($delegate, arguments);\n        // If no javascript animation is found, animator is undefined\n        if (animator) {\n          runners.push(animator);\n        }\n        return animator;\n      };\n\n      animateJsConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateJsConstructor;\n    }]);\n\n    $provide.decorator('$animateCss', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateCssConstructor = function(element, options) {\n        var animator = $delegate(element, options);\n        runners.push(animator);\n        return animator;\n      };\n\n      animateCssConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateCssConstructor;\n    }]);\n\n    $provide.decorator('$animate', ['$delegate', '$timeout', '$browser', '$$rAF', '$animateCss', '$$animateJs',\n                                    '$$forceReflow', '$$animateAsyncRun', '$rootScope',\n                            function($delegate,   $timeout,   $browser,   $$rAF,   $animateCss,   $$animateJs,\n                                     $$forceReflow,   $$animateAsyncRun,  $rootScope) {\n      var animate = {\n        queue: [],\n        cancel: $delegate.cancel,\n        on: $delegate.on,\n        off: $delegate.off,\n        pin: $delegate.pin,\n        get reflows() {\n          return $$forceReflow.totalReflows;\n        },\n        enabled: $delegate.enabled,\n        /**\n         * @ngdoc method\n         * @name $animate#closeAndFlush\n         * @description\n         *\n         * This method will close all pending animations (both {@link ngAnimate#javascript-based-animations Javascript}\n         * and {@link ngAnimate.$animateCss CSS}) and it will also flush any remaining animation frames and/or callbacks.\n         */\n        closeAndFlush: function() {\n          // we allow the flush command to swallow the errors\n          // because depending on whether CSS or JS animations are\n          // used, there may not be a RAF flush. The primary flush\n          // at the end of this function must throw an exception\n          // because it will track if there were pending animations\n          this.flush(true);\n          $animateCss.$closeAndFlush();\n          $$animateJs.$closeAndFlush();\n          this.flush();\n        },\n        /**\n         * @ngdoc method\n         * @name $animate#flush\n         * @description\n         *\n         * This method is used to flush the pending callbacks and animation frames to either start\n         * an animation or conclude an animation. Note that this will not actually close an\n         * actively running animation (see {@link ngMock.$animate#closeAndFlush `closeAndFlush()`} for that).\n         */\n        flush: function(hideErrors) {\n          $rootScope.$digest();\n\n          var doNextRun, somethingFlushed = false;\n          do {\n            doNextRun = false;\n\n            if ($$rAF.queue.length) {\n              $$rAF.flush();\n              doNextRun = somethingFlushed = true;\n            }\n\n            if ($$animateAsyncRun.flush()) {\n              doNextRun = somethingFlushed = true;\n            }\n          } while (doNextRun);\n\n          if (!somethingFlushed && !hideErrors) {\n            throw new Error('No pending animations ready to be closed or flushed');\n          }\n\n          $rootScope.$digest();\n        }\n      };\n\n      angular.forEach(\n        ['animate','enter','leave','move','addClass','removeClass','setClass'], function(method) {\n        animate[method] = function() {\n          animate.queue.push({\n            event: method,\n            element: arguments[0],\n            options: arguments[arguments.length - 1],\n            args: arguments\n          });\n          return $delegate[method].apply($delegate, arguments);\n        };\n      });\n\n      return animate;\n    }]);\n\n  }]);\n\n\n/**\n * @ngdoc function\n * @name angular.mock.dump\n * @description\n *\n * *NOTE*: This is not an injectable instance, just a globally available function.\n *\n * Method for serializing common AngularJS objects (scope, elements, etc..) into strings.\n * It is useful for logging objects to the console when debugging.\n *\n * @param {*} object - any object to turn into string.\n * @return {string} a serialized string of the argument\n */\nangular.mock.dump = function(object) {\n  return serialize(object);\n\n  function serialize(object) {\n    var out;\n\n    if (angular.isElement(object)) {\n      object = angular.element(object);\n      out = angular.element('<div></div>');\n      angular.forEach(object, function(element) {\n        out.append(angular.element(element).clone());\n      });\n      out = out.html();\n    } else if (angular.isArray(object)) {\n      out = [];\n      angular.forEach(object, function(o) {\n        out.push(serialize(o));\n      });\n      out = '[ ' + out.join(', ') + ' ]';\n    } else if (angular.isObject(object)) {\n      if (angular.isFunction(object.$eval) && angular.isFunction(object.$apply)) {\n        out = serializeScope(object);\n      } else if (object instanceof Error) {\n        out = object.stack || ('' + object.name + ': ' + object.message);\n      } else {\n        // TODO(i): this prevents methods being logged,\n        // we should have a better way to serialize objects\n        out = angular.toJson(object, true);\n      }\n    } else {\n      out = String(object);\n    }\n\n    return out;\n  }\n\n  function serializeScope(scope, offset) {\n    offset = offset ||  '  ';\n    var log = [offset + 'Scope(' + scope.$id + '): {'];\n    for (var key in scope) {\n      if (Object.prototype.hasOwnProperty.call(scope, key) && !key.match(/^(\\$|this)/)) {\n        log.push('  ' + key + ': ' + angular.toJson(scope[key]));\n      }\n    }\n    var child = scope.$$childHead;\n    while (child) {\n      log.push(serializeScope(child, offset + '  '));\n      child = child.$$nextSibling;\n    }\n    log.push('}');\n    return log.join('\\n' + offset);\n  }\n};\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @description\n * Fake HTTP backend implementation suitable for unit testing applications that use the\n * {@link ng.$http $http service}.\n *\n * <div class=\"alert alert-info\">\n * **Note**: For fake HTTP backend implementation suitable for end-to-end testing or backend-less\n * development please see {@link ngMockE2E.$httpBackend e2e $httpBackend mock}.\n * </div>\n *\n * During unit testing, we want our unit tests to run quickly and have no external dependencies so\n * we don’t want to send [XHR](https://developer.mozilla.org/en/xmlhttprequest) or\n * [JSONP](http://en.wikipedia.org/wiki/JSONP) requests to a real server. All we really need is\n * to verify whether a certain request has been sent or not, or alternatively just let the\n * application make requests, respond with pre-trained responses and assert that the end result is\n * what we expect it to be.\n *\n * This mock implementation can be used to respond with static or dynamic responses via the\n * `expect` and `when` apis and their shortcuts (`expectGET`, `whenPOST`, etc).\n *\n * When an AngularJS application needs some data from a server, it calls the $http service, which\n * sends the request to a real server using $httpBackend service. With dependency injection, it is\n * easy to inject $httpBackend mock (which has the same API as $httpBackend) and use it to verify\n * the requests and respond with some testing data without sending a request to a real server.\n *\n * There are two ways to specify what test data should be returned as http responses by the mock\n * backend when the code under test makes http requests:\n *\n * - `$httpBackend.expect` - specifies a request expectation\n * - `$httpBackend.when` - specifies a backend definition\n *\n *\n * ## Request Expectations vs Backend Definitions\n *\n * Request expectations provide a way to make assertions about requests made by the application and\n * to define responses for those requests. The test will fail if the expected requests are not made\n * or they are made in the wrong order.\n *\n * Backend definitions allow you to define a fake backend for your application which doesn't assert\n * if a particular request was made or not, it just returns a trained response if a request is made.\n * The test will pass whether or not the request gets made during testing.\n *\n *\n * <table class=\"table\">\n *   <tr><th width=\"220px\"></th><th>Request expectations</th><th>Backend definitions</th></tr>\n *   <tr>\n *     <th>Syntax</th>\n *     <td>.expect(...).respond(...)</td>\n *     <td>.when(...).respond(...)</td>\n *   </tr>\n *   <tr>\n *     <th>Typical usage</th>\n *     <td>strict unit tests</td>\n *     <td>loose (black-box) unit testing</td>\n *   </tr>\n *   <tr>\n *     <th>Fulfills multiple requests</th>\n *     <td>NO</td>\n *     <td>YES</td>\n *   </tr>\n *   <tr>\n *     <th>Order of requests matters</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Request required</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Response required</th>\n *     <td>optional (see below)</td>\n *     <td>YES</td>\n *   </tr>\n * </table>\n *\n * In cases where both backend definitions and request expectations are specified during unit\n * testing, the request expectations are evaluated first.\n *\n * If a request expectation has no response specified, the algorithm will search your backend\n * definitions for an appropriate response.\n *\n * If a request didn't match any expectation or if the expectation doesn't have the response\n * defined, the backend definitions are evaluated in sequential order to see if any of them match\n * the request. The response from the first matched definition is returned.\n *\n *\n * ## Flushing HTTP requests\n *\n * The $httpBackend used in production always responds to requests asynchronously. If we preserved\n * this behavior in unit testing, we'd have to create async unit tests, which are hard to write,\n * to follow and to maintain. But neither can the testing mock respond synchronously; that would\n * change the execution of the code under test. For this reason, the mock $httpBackend has a\n * `flush()` method, which allows the test to explicitly flush pending requests. This preserves\n * the async api of the backend, while allowing the test to execute synchronously.\n *\n *\n * ## Unit testing with mock $httpBackend\n * The following code shows how to setup and use the mock backend when unit testing a controller.\n * First we create the controller under test:\n *\n  ```js\n  // The module code\n  angular\n    .module('MyApp', [])\n    .controller('MyController', MyController);\n\n  // The controller code\n  function MyController($scope, $http) {\n    var authToken;\n\n    $http.get('/auth.py').then(function(response) {\n      authToken = response.headers('A-Token');\n      $scope.user = response.data;\n    }).catch(function() {\n      $scope.status = 'Failed...';\n    });\n\n    $scope.saveMessage = function(message) {\n      var headers = { 'Authorization': authToken };\n      $scope.status = 'Saving...';\n\n      $http.post('/add-msg.py', message, { headers: headers } ).then(function(response) {\n        $scope.status = '';\n      }).catch(function() {\n        $scope.status = 'Failed...';\n      });\n    };\n  }\n  ```\n *\n * Now we setup the mock backend and create the test specs:\n *\n  ```js\n    // testing controller\n    describe('MyController', function() {\n       var $httpBackend, $rootScope, createController, authRequestHandler;\n\n       // Set up the module\n       beforeEach(module('MyApp'));\n\n       beforeEach(inject(function($injector) {\n         // Set up the mock http service responses\n         $httpBackend = $injector.get('$httpBackend');\n         // backend definition common for all tests\n         authRequestHandler = $httpBackend.when('GET', '/auth.py')\n                                .respond({userId: 'userX'}, {'A-Token': 'xxx'});\n\n         // Get hold of a scope (i.e. the root scope)\n         $rootScope = $injector.get('$rootScope');\n         // The $controller service is used to create instances of controllers\n         var $controller = $injector.get('$controller');\n\n         createController = function() {\n           return $controller('MyController', {'$scope' : $rootScope });\n         };\n       }));\n\n\n       afterEach(function() {\n         $httpBackend.verifyNoOutstandingExpectation();\n         $httpBackend.verifyNoOutstandingRequest();\n       });\n\n\n       it('should fetch authentication token', function() {\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n       });\n\n\n       it('should fail authentication', function() {\n\n         // Notice how you can change the response even after it was set\n         authRequestHandler.respond(401, '');\n\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('Failed...');\n       });\n\n\n       it('should send msg to server', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         // now you don’t care about the authentication, but\n         // the controller will still send the request and\n         // $httpBackend will respond without you having to\n         // specify the expectation and response for this request\n\n         $httpBackend.expectPOST('/add-msg.py', 'message content').respond(201, '');\n         $rootScope.saveMessage('message content');\n         expect($rootScope.status).toBe('Saving...');\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('');\n       });\n\n\n       it('should send auth header', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         $httpBackend.expectPOST('/add-msg.py', undefined, function(headers) {\n           // check if the header was sent, if it wasn't the expectation won't\n           // match the request and the test will fail\n           return headers['Authorization'] === 'xxx';\n         }).respond(201, '');\n\n         $rootScope.saveMessage('whatever');\n         $httpBackend.flush();\n       });\n    });\n  ```\n *\n * ## Dynamic responses\n *\n * You define a response to a request by chaining a call to `respond()` onto a definition or expectation.\n * If you provide a **callback** as the first parameter to `respond(callback)` then you can dynamically generate\n * a response based on the properties of the request.\n *\n * The `callback` function should be of the form `function(method, url, data, headers, params)`.\n *\n * ### Query parameters\n *\n * By default, query parameters on request URLs are parsed into the `params` object. So a request URL\n * of `/list?q=searchstr&orderby=-name` would set `params` to be `{q: 'searchstr', orderby: '-name'}`.\n *\n * ### Regex parameter matching\n *\n * If an expectation or definition uses a **regex** to match the URL, you can provide an array of **keys** via a\n * `params` argument. The index of each **key** in the array will match the index of a **group** in the\n * **regex**.\n *\n * The `params` object in the **callback** will now have properties with these keys, which hold the value of the\n * corresponding **group** in the **regex**.\n *\n * This also applies to the `when` and `expect` shortcut methods.\n *\n *\n * ```js\n *   $httpBackend.expect('GET', /\\/user\\/(.+)/, undefined, undefined, ['id'])\n *     .respond(function(method, url, data, headers, params) {\n *       // for requested url of '/user/1234' params is {id: '1234'}\n *     });\n *\n *   $httpBackend.whenPATCH(/\\/user\\/(.+)\\/article\\/(.+)/, undefined, undefined, ['user', 'article'])\n *     .respond(function(method, url, data, headers, params) {\n *       // for url of '/user/1234/article/567' params is {user: '1234', article: '567'}\n *     });\n * ```\n *\n * ## Matching route requests\n *\n * For extra convenience, `whenRoute` and `expectRoute` shortcuts are available. These methods offer colon\n * delimited matching of the url path, ignoring the query string. This allows declarations\n * similar to how application routes are configured with `$routeProvider`. Because these methods convert\n * the definition url to regex, declaration order is important. Combined with query parameter parsing,\n * the following is possible:\n *\n  ```js\n    $httpBackend.whenRoute('GET', '/users/:id')\n      .respond(function(method, url, data, headers, params) {\n        return [200, MockUserList[Number(params.id)]];\n      });\n\n    $httpBackend.whenRoute('GET', '/users')\n      .respond(function(method, url, data, headers, params) {\n        var userList = angular.copy(MockUserList),\n          defaultSort = 'lastName',\n          count, pages, isPrevious, isNext;\n\n        // paged api response '/v1/users?page=2'\n        params.page = Number(params.page) || 1;\n\n        // query for last names '/v1/users?q=Archer'\n        if (params.q) {\n          userList = $filter('filter')({lastName: params.q});\n        }\n\n        pages = Math.ceil(userList.length / pagingLength);\n        isPrevious = params.page > 1;\n        isNext = params.page < pages;\n\n        return [200, {\n          count:    userList.length,\n          previous: isPrevious,\n          next:     isNext,\n          // sort field -> '/v1/users?sortBy=firstName'\n          results:  $filter('orderBy')(userList, params.sortBy || defaultSort)\n                      .splice((params.page - 1) * pagingLength, pagingLength)\n        }];\n      });\n  ```\n */\nangular.mock.$httpBackendDecorator =\n  ['$rootScope', '$timeout', '$delegate', createHttpBackendMock];\n\n/**\n * General factory function for $httpBackend mock.\n * Returns instance for unit testing (when no arguments specified):\n *   - passing through is disabled\n *   - auto flushing is disabled\n *\n * Returns instance for e2e testing (when `$delegate` and `$browser` specified):\n *   - passing through (delegating request to real backend) is enabled\n *   - auto flushing is enabled\n *\n * @param {Object=} $delegate Real $httpBackend instance (allow passing through if specified)\n * @param {Object=} $browser Auto-flushing enabled if specified\n * @return {Object} Instance of $httpBackend mock\n */\nfunction createHttpBackendMock($rootScope, $timeout, $delegate, $browser) {\n  var definitions = [],\n      expectations = [],\n      responses = [],\n      responsesPush = angular.bind(responses, responses.push),\n      copy = angular.copy,\n      // We cache the original backend so that if both ngMock and ngMockE2E override the\n      // service the ngMockE2E version can pass through to the real backend\n      originalHttpBackend = $delegate.$$originalHttpBackend || $delegate;\n\n  function createResponse(status, data, headers, statusText) {\n    if (angular.isFunction(status)) return status;\n\n    return function() {\n      return angular.isNumber(status)\n          ? [status, data, headers, statusText, 'complete']\n          : [200, status, data, headers, 'complete'];\n    };\n  }\n\n  // TODO(vojta): change params to: method, url, data, headers, callback\n  function $httpBackend(method, url, data, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {\n\n    var xhr = new MockXhr(),\n        expectation = expectations[0],\n        wasExpected = false;\n\n    xhr.$$events = eventHandlers;\n    xhr.upload.$$events = uploadEventHandlers;\n\n    function prettyPrint(data) {\n      return (angular.isString(data) || angular.isFunction(data) || data instanceof RegExp)\n          ? data\n          : angular.toJson(data);\n    }\n\n    function wrapResponse(wrapped) {\n      if (!$browser && timeout) {\n        if (timeout.then) {\n          timeout.then(function() {\n            handlePrematureEnd(angular.isDefined(timeout.$$timeoutId) ? 'timeout' : 'abort');\n          });\n        } else {\n          $timeout(function() {\n            handlePrematureEnd('timeout');\n          }, timeout);\n        }\n      }\n\n      handleResponse.description = method + ' ' + url;\n      return handleResponse;\n\n      function handleResponse() {\n        var response = wrapped.response(method, url, data, headers, wrapped.params(url));\n        xhr.$$respHeaders = response[2];\n        callback(copy(response[0]), copy(response[1]), xhr.getAllResponseHeaders(),\n                 copy(response[3] || ''), copy(response[4]));\n      }\n\n      function handlePrematureEnd(reason) {\n        for (var i = 0, ii = responses.length; i < ii; i++) {\n          if (responses[i] === handleResponse) {\n            responses.splice(i, 1);\n            callback(-1, undefined, '', undefined, reason);\n            break;\n          }\n        }\n      }\n    }\n\n    if (expectation && expectation.match(method, url)) {\n      if (!expectation.matchData(data)) {\n        throw new Error('Expected ' + expectation + ' with different data\\n' +\n            'EXPECTED: ' + prettyPrint(expectation.data) + '\\nGOT:      ' + data);\n      }\n\n      if (!expectation.matchHeaders(headers)) {\n        throw new Error('Expected ' + expectation + ' with different headers\\n' +\n                        'EXPECTED: ' + prettyPrint(expectation.headers) + '\\nGOT:      ' +\n                        prettyPrint(headers));\n      }\n\n      expectations.shift();\n\n      if (expectation.response) {\n        responses.push(wrapResponse(expectation));\n        return;\n      }\n      wasExpected = true;\n    }\n\n    var i = -1, definition;\n    while ((definition = definitions[++i])) {\n      if (definition.match(method, url, data, headers || {})) {\n        if (definition.response) {\n          // if $browser specified, we do auto flush all requests\n          ($browser ? $browser.defer : responsesPush)(wrapResponse(definition));\n        } else if (definition.passThrough) {\n          originalHttpBackend(method, url, data, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers);\n        } else throw new Error('No response defined !');\n        return;\n      }\n    }\n    var error = wasExpected ?\n        new Error('No response defined !') :\n        new Error('Unexpected request: ' + method + ' ' + url + '\\n' +\n                  (expectation ? 'Expected ' + expectation : 'No more request expected'));\n\n    // In addition to be being converted to a rejection, this error also needs to be passed to\n    // the $exceptionHandler and be rethrown (so that the test fails).\n    error.$$passToExceptionHandler = true;\n\n    throw error;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#when\n   * @description\n   * Creates a new backend definition.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   *\n   *  - respond –\n   *      ```js\n   *      {function([status,] data[, headers, statusText])\n   *      | function(function(method, url, data, headers, params)}\n   *      ```\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (Array|Object|string),\n   *    response headers (Object), and the text for the status (string). The respond method returns\n   *    the `requestHandler` object for possible overrides.\n   */\n  $httpBackend.when = function(method, url, data, headers, keys) {\n\n    assertArgDefined(arguments, 1, 'url');\n\n    var definition = new MockHttpExpectation(method, url, data, headers, keys),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            definition.passThrough = undefined;\n            definition.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    if ($browser) {\n      chain.passThrough = function() {\n        definition.response = undefined;\n        definition.passThrough = true;\n        return chain;\n      };\n    }\n\n    definitions.push(definition);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenGET\n   * @description\n   * Creates a new backend definition for GET requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenHEAD\n   * @description\n   * Creates a new backend definition for HEAD requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenDELETE\n   * @description\n   * Creates a new backend definition for DELETE requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPOST\n   * @description\n   * Creates a new backend definition for POST requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPUT\n   * @description\n   * Creates a new backend definition for PUT requests.  For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenJSONP\n   * @description\n   * Creates a new backend definition for JSONP requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n  createShortMethods('when');\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenRoute\n   * @description\n   * Creates a new backend definition that compares only with the requested route.\n   *\n   * @param {string} method HTTP method.\n   * @param {string} url HTTP url string that supports colon param matching.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #when for more info.\n   */\n  $httpBackend.whenRoute = function(method, url) {\n    var pathObj = parseRoute(url);\n    return $httpBackend.when(method, pathObj.regexp, undefined, undefined, pathObj.keys);\n  };\n\n  function parseRoute(url) {\n    var ret = {\n      regexp: url\n    },\n    keys = ret.keys = [];\n\n    if (!url || !angular.isString(url)) return ret;\n\n    url = url\n      .replace(/([().])/g, '\\\\$1')\n      .replace(/(\\/)?:(\\w+)([?*])?/g, function(_, slash, key, option) {\n        var optional = option === '?' ? option : null;\n        var star = option === '*' ? option : null;\n        keys.push({ name: key, optional: !!optional });\n        slash = slash || '';\n        return ''\n          + (optional ? '' : slash)\n          + '(?:'\n          + (optional ? slash : '')\n          + (star && '(.+?)' || '([^/]+)')\n          + (optional || '')\n          + ')'\n          + (optional || '');\n      })\n      .replace(/([/$*])/g, '\\\\$1');\n\n    ret.regexp = new RegExp('^' + url, 'i');\n    return ret;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expect\n   * @description\n   * Creates a new request expectation.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *  request is handled. You can save this object for later use and invoke `respond` again in\n   *  order to change how a matched request is handled.\n   *\n   *  - respond –\n   *    ```\n   *    { function([status,] data[, headers, statusText])\n   *    | function(function(method, url, data, headers, params)}\n   *    ```\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (Array|Object|string),\n   *    response headers (Object), and the text for the status (string). The respond method returns\n   *    the `requestHandler` object for possible overrides.\n   */\n  $httpBackend.expect = function(method, url, data, headers, keys) {\n\n    assertArgDefined(arguments, 1, 'url');\n\n    var expectation = new MockHttpExpectation(method, url, data, headers, keys),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            expectation.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    expectations.push(expectation);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectGET\n   * @description\n   * Creates a new request expectation for GET requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #expect for more info.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectHEAD\n   * @description\n   * Creates a new request expectation for HEAD requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectDELETE\n   * @description\n   * Creates a new request expectation for DELETE requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPOST\n   * @description\n   * Creates a new request expectation for POST requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPUT\n   * @description\n   * Creates a new request expectation for PUT requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPATCH\n   * @description\n   * Creates a new request expectation for PATCH requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {Object=} headers HTTP headers.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectJSONP\n   * @description\n   * Creates a new request expectation for JSONP requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives an url\n   *   and returns true if the url matches the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n  createShortMethods('expect');\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectRoute\n   * @description\n   * Creates a new request expectation that compares only with the requested route.\n   *\n   * @param {string} method HTTP method.\n   * @param {string} url HTTP url string that supports colon param matching.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #expect for more info.\n   */\n  $httpBackend.expectRoute = function(method, url) {\n    var pathObj = parseRoute(url);\n    return $httpBackend.expect(method, pathObj.regexp, undefined, undefined, pathObj.keys);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#flush\n   * @description\n   * Flushes pending requests using the trained responses. Requests are flushed in the order they\n   * were made, but it is also possible to skip one or more requests (for example to have them\n   * flushed later). This is useful for simulating scenarios where responses arrive from the server\n   * in any order.\n   *\n   * If there are no pending requests to flush when the method is called, an exception is thrown (as\n   * this is typically a sign of programming error).\n   *\n   * @param {number=} count - Number of responses to flush. If undefined/null, all pending requests\n   *     (starting after `skip`) will be flushed.\n   * @param {number=} [skip=0] - Number of pending requests to skip. For example, a value of `5`\n   *     would skip the first 5 pending requests and start flushing from the 6th onwards.\n   */\n  $httpBackend.flush = function(count, skip, digest) {\n    if (digest !== false) $rootScope.$digest();\n\n    skip = skip || 0;\n    if (skip >= responses.length) throw new Error('No pending request to flush !');\n\n    if (angular.isDefined(count) && count !== null) {\n      while (count--) {\n        var part = responses.splice(skip, 1);\n        if (!part.length) throw new Error('No more pending request to flush !');\n        part[0]();\n      }\n    } else {\n      while (responses.length > skip) {\n        responses.splice(skip, 1)[0]();\n      }\n    }\n    $httpBackend.verifyNoOutstandingExpectation(digest);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingExpectation\n   * @description\n   * Verifies that all of the requests defined via the `expect` api were made. If any of the\n   * requests were not made, verifyNoOutstandingExpectation throws an exception.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingExpectation);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingExpectation = function(digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (expectations.length) {\n      throw new Error('Unsatisfied requests: ' + expectations.join(', '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingRequest\n   * @description\n   * Verifies that there are no outstanding requests that need to be flushed.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingRequest);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingRequest = function(digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (responses.length) {\n      var unflushedDescriptions = responses.map(function(res) { return res.description; });\n      throw new Error('Unflushed requests: ' + responses.length + '\\n  ' +\n                      unflushedDescriptions.join('\\n  '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#resetExpectations\n   * @description\n   * Resets all request expectations, but preserves all backend definitions. Typically, you would\n   * call resetExpectations during a multiple-phase test when you want to reuse the same instance of\n   * $httpBackend mock.\n   */\n  $httpBackend.resetExpectations = function() {\n    expectations.length = 0;\n    responses.length = 0;\n  };\n\n  $httpBackend.$$originalHttpBackend = originalHttpBackend;\n\n  return $httpBackend;\n\n\n  function createShortMethods(prefix) {\n    angular.forEach(['GET', 'DELETE', 'JSONP', 'HEAD'], function(method) {\n     $httpBackend[prefix + method] = function(url, headers, keys) {\n        assertArgDefined(arguments, 0, 'url');\n\n        // Change url to `null` if `undefined` to stop it throwing an exception further down\n        if (angular.isUndefined(url)) url = null;\n\n       return $httpBackend[prefix](method, url, undefined, headers, keys);\n     };\n    });\n\n    angular.forEach(['PUT', 'POST', 'PATCH'], function(method) {\n      $httpBackend[prefix + method] = function(url, data, headers, keys) {\n        assertArgDefined(arguments, 0, 'url');\n\n        // Change url to `null` if `undefined` to stop it throwing an exception further down\n        if (angular.isUndefined(url)) url = null;\n\n        return $httpBackend[prefix](method, url, data, headers, keys);\n      };\n    });\n  }\n}\n\nfunction assertArgDefined(args, index, name) {\n  if (args.length > index && angular.isUndefined(args[index])) {\n    throw new Error('Undefined argument `' + name + '`; the argument is provided but not defined');\n  }\n}\n\n\nfunction MockHttpExpectation(method, url, data, headers, keys) {\n\n  function getUrlParams(u) {\n    var params = u.slice(u.indexOf('?') + 1).split('&');\n    return params.sort();\n  }\n\n  function compareUrl(u) {\n    return (url.slice(0, url.indexOf('?')) === u.slice(0, u.indexOf('?')) &&\n      getUrlParams(url).join() === getUrlParams(u).join());\n  }\n\n  this.data = data;\n  this.headers = headers;\n\n  this.match = function(m, u, d, h) {\n    if (method !== m) return false;\n    if (!this.matchUrl(u)) return false;\n    if (angular.isDefined(d) && !this.matchData(d)) return false;\n    if (angular.isDefined(h) && !this.matchHeaders(h)) return false;\n    return true;\n  };\n\n  this.matchUrl = function(u) {\n    if (!url) return true;\n    if (angular.isFunction(url.test)) return url.test(u);\n    if (angular.isFunction(url)) return url(u);\n    return (url === u || compareUrl(u));\n  };\n\n  this.matchHeaders = function(h) {\n    if (angular.isUndefined(headers)) return true;\n    if (angular.isFunction(headers)) return headers(h);\n    return angular.equals(headers, h);\n  };\n\n  this.matchData = function(d) {\n    if (angular.isUndefined(data)) return true;\n    if (data && angular.isFunction(data.test)) return data.test(d);\n    if (data && angular.isFunction(data)) return data(d);\n    if (data && !angular.isString(data)) {\n      return angular.equals(angular.fromJson(angular.toJson(data)), angular.fromJson(d));\n    }\n    // eslint-disable-next-line eqeqeq\n    return data == d;\n  };\n\n  this.toString = function() {\n    return method + ' ' + url;\n  };\n\n  this.params = function(u) {\n    return angular.extend(parseQuery(), pathParams());\n\n    function pathParams() {\n      var keyObj = {};\n      if (!url || !angular.isFunction(url.test) || !keys || keys.length === 0) return keyObj;\n\n      var m = url.exec(u);\n      if (!m) return keyObj;\n      for (var i = 1, len = m.length; i < len; ++i) {\n        var key = keys[i - 1];\n        var val = m[i];\n        if (key && val) {\n          keyObj[key.name || key] = val;\n        }\n      }\n\n      return keyObj;\n    }\n\n    function parseQuery() {\n      var obj = {}, key_value, key,\n          queryStr = u.indexOf('?') > -1\n          ? u.substring(u.indexOf('?') + 1)\n          : '';\n\n      angular.forEach(queryStr.split('&'), function(keyValue) {\n        if (keyValue) {\n          key_value = keyValue.replace(/\\+/g,'%20').split('=');\n          key = tryDecodeURIComponent(key_value[0]);\n          if (angular.isDefined(key)) {\n            var val = angular.isDefined(key_value[1]) ? tryDecodeURIComponent(key_value[1]) : true;\n            if (!hasOwnProperty.call(obj, key)) {\n              obj[key] = val;\n            } else if (angular.isArray(obj[key])) {\n              obj[key].push(val);\n            } else {\n              obj[key] = [obj[key],val];\n            }\n          }\n        }\n      });\n      return obj;\n    }\n    function tryDecodeURIComponent(value) {\n      try {\n        return decodeURIComponent(value);\n      } catch (e) {\n        // Ignore any invalid uri component\n      }\n    }\n  };\n}\n\nfunction createMockXhr() {\n  return new MockXhr();\n}\n\nfunction MockXhr() {\n\n  // hack for testing $http, $httpBackend\n  MockXhr.$$lastInstance = this;\n\n  this.open = function(method, url, async) {\n    this.$$method = method;\n    this.$$url = url;\n    this.$$async = async;\n    this.$$reqHeaders = {};\n    this.$$respHeaders = {};\n  };\n\n  this.send = function(data) {\n    this.$$data = data;\n  };\n\n  this.setRequestHeader = function(key, value) {\n    this.$$reqHeaders[key] = value;\n  };\n\n  this.getResponseHeader = function(name) {\n    // the lookup must be case insensitive,\n    // that's why we try two quick lookups first and full scan last\n    var header = this.$$respHeaders[name];\n    if (header) return header;\n\n    name = angular.lowercase(name);\n    header = this.$$respHeaders[name];\n    if (header) return header;\n\n    header = undefined;\n    angular.forEach(this.$$respHeaders, function(headerVal, headerName) {\n      if (!header && angular.lowercase(headerName) === name) header = headerVal;\n    });\n    return header;\n  };\n\n  this.getAllResponseHeaders = function() {\n    var lines = [];\n\n    angular.forEach(this.$$respHeaders, function(value, key) {\n      lines.push(key + ': ' + value);\n    });\n    return lines.join('\\n');\n  };\n\n  this.abort = function() {\n    if (isFunction(this.onabort)) {\n      this.onabort();\n    }\n  };\n\n  // This section simulates the events on a real XHR object (and the upload object)\n  // When we are testing $httpBackend (inside the AngularJS project) we make partial use of this\n  // but store the events directly ourselves on `$$events`, instead of going through the `addEventListener`\n  this.$$events = {};\n  this.addEventListener = function(name, listener) {\n    if (angular.isUndefined(this.$$events[name])) this.$$events[name] = [];\n    this.$$events[name].push(listener);\n  };\n\n  this.upload = {\n    $$events: {},\n    addEventListener: this.addEventListener\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $timeout\n * @description\n *\n * This service is just a simple decorator for {@link ng.$timeout $timeout} service\n * that adds a \"flush\" and \"verifyNoPendingTasks\" methods.\n */\n\nangular.mock.$TimeoutDecorator = ['$delegate', '$browser', function($delegate, $browser) {\n\n  /**\n   * @ngdoc method\n   * @name $timeout#flush\n   * @description\n   *\n   * Flushes the queue of pending tasks.\n   *\n   * @param {number=} delay maximum timeout amount to flush up until\n   */\n  $delegate.flush = function(delay) {\n    $browser.defer.flush(delay);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $timeout#verifyNoPendingTasks\n   * @description\n   *\n   * Verifies that there are no pending tasks that need to be flushed.\n   */\n  $delegate.verifyNoPendingTasks = function() {\n    if ($browser.deferredFns.length) {\n      throw new Error('Deferred tasks to flush (' + $browser.deferredFns.length + '): ' +\n          formatPendingTasksAsString($browser.deferredFns));\n    }\n  };\n\n  function formatPendingTasksAsString(tasks) {\n    var result = [];\n    angular.forEach(tasks, function(task) {\n      result.push('{id: ' + task.id + ', time: ' + task.time + '}');\n    });\n\n    return result.join(', ');\n  }\n\n  return $delegate;\n}];\n\nangular.mock.$RAFDecorator = ['$delegate', function($delegate) {\n  var rafFn = function(fn) {\n    var index = rafFn.queue.length;\n    rafFn.queue.push(fn);\n    return function() {\n      rafFn.queue.splice(index, 1);\n    };\n  };\n\n  rafFn.queue = [];\n  rafFn.supported = $delegate.supported;\n\n  rafFn.flush = function() {\n    if (rafFn.queue.length === 0) {\n      throw new Error('No rAF callbacks present');\n    }\n\n    var length = rafFn.queue.length;\n    for (var i = 0; i < length; i++) {\n      rafFn.queue[i]();\n    }\n\n    rafFn.queue = rafFn.queue.slice(i);\n  };\n\n  return rafFn;\n}];\n\n/**\n *\n */\nvar originalRootElement;\nangular.mock.$RootElementProvider = function() {\n  this.$get = ['$injector', function($injector) {\n    originalRootElement = angular.element('<div ng-app></div>').data('$injector', $injector);\n    return originalRootElement;\n  }];\n};\n\n/**\n * @ngdoc service\n * @name $controller\n * @description\n * A decorator for {@link ng.$controller} with additional `bindings` parameter, useful when testing\n * controllers of directives that use {@link $compile#-bindtocontroller- `bindToController`}.\n *\n * Depending on the value of\n * {@link ng.$compileProvider#preAssignBindingsEnabled `preAssignBindingsEnabled()`}, the properties\n * will be bound before or after invoking the constructor.\n *\n *\n * ## Example\n *\n * ```js\n *\n * // Directive definition ...\n *\n * myMod.directive('myDirective', {\n *   controller: 'MyDirectiveController',\n *   bindToController: {\n *     name: '@'\n *   }\n * });\n *\n *\n * // Controller definition ...\n *\n * myMod.controller('MyDirectiveController', ['$log', function($log) {\n *   this.log = function() {\n *     $log.info(this.name);\n *   };\n * }]);\n *\n *\n * // In a test ...\n *\n * describe('myDirectiveController', function() {\n *   describe('log()', function() {\n *     it('should write the bound name to the log', inject(function($controller, $log) {\n *       var ctrl = $controller('MyDirectiveController', { /* no locals &#42;/ }, { name: 'Clark Kent' });\n *       ctrl.log();\n *\n *       expect(ctrl.name).toEqual('Clark Kent');\n *       expect($log.info.logs).toEqual(['Clark Kent']);\n *     }));\n *   });\n * });\n *\n * ```\n *\n * @param {Function|string} constructor If called with a function then it's considered to be the\n *    controller constructor function. Otherwise it's considered to be a string which is used\n *    to retrieve the controller constructor using the following steps:\n *\n *    * check if a controller with given name is registered via `$controllerProvider`\n *    * check if evaluating the string on the current scope returns a constructor\n *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n *      `window` object (deprecated, not recommended)\n *\n *    The string can use the `controller as property` syntax, where the controller instance is published\n *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n *    to work correctly.\n *\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller instance. This is used to simulate\n *                           the `bindToController` feature and simplify certain kinds of tests.\n * @return {Object} Instance of given controller.\n */\nfunction createControllerDecorator(compileProvider) {\n  angular.mock.$ControllerDecorator = ['$delegate', function($delegate) {\n    return function(expression, locals, later, ident) {\n      if (later && typeof later === 'object') {\n        var preAssignBindingsEnabled = compileProvider.preAssignBindingsEnabled();\n\n        var instantiate = $delegate(expression, locals, true, ident);\n        if (preAssignBindingsEnabled) {\n          angular.extend(instantiate.instance, later);\n        }\n\n        var instance = instantiate();\n        if (!preAssignBindingsEnabled || instance !== instantiate.instance) {\n          angular.extend(instance, later);\n        }\n\n        return instance;\n      }\n      return $delegate(expression, locals, later, ident);\n    };\n  }];\n\n  return angular.mock.$ControllerDecorator;\n}\n\n/**\n * @ngdoc service\n * @name $componentController\n * @description\n * A service that can be used to create instances of component controllers. Useful for unit-testing.\n *\n * Be aware that the controller will be instantiated and attached to the scope as specified in\n * the component definition object. If you do not provide a `$scope` object in the `locals` param\n * then the helper will create a new isolated scope as a child of `$rootScope`.\n *\n * If you are using `$element` or `$attrs` in the controller, make sure to provide them as `locals`.\n * The `$element` must be a jqLite-wrapped DOM element, and `$attrs` should be an object that\n * has all properties / functions that you are using in the controller. If this is getting too complex,\n * you should compile the component instead and access the component's controller via the\n * {@link angular.element#methods `controller`} function.\n *\n * See also the section on {@link guide/component#unit-testing-component-controllers unit-testing component controllers}\n * in the guide.\n *\n * @param {string} componentName the name of the component whose controller we want to instantiate\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller before invoking the constructor. This is used\n *                           to simulate the `bindToController` feature and simplify certain kinds of tests.\n * @param {string=} ident Override the property name to use when attaching the controller to the scope.\n * @return {Object} Instance of requested controller.\n */\nangular.mock.$ComponentControllerProvider = ['$compileProvider',\n    function ComponentControllerProvider($compileProvider) {\n  this.$get = ['$controller','$injector', '$rootScope', function($controller, $injector, $rootScope) {\n    return function $componentController(componentName, locals, bindings, ident) {\n      // get all directives associated to the component name\n      var directives = $injector.get(componentName + 'Directive');\n      // look for those directives that are components\n      var candidateDirectives = directives.filter(function(directiveInfo) {\n        // components have controller, controllerAs and restrict:'E'\n        return directiveInfo.controller && directiveInfo.controllerAs && directiveInfo.restrict === 'E';\n      });\n      // check if valid directives found\n      if (candidateDirectives.length === 0) {\n        throw new Error('No component found');\n      }\n      if (candidateDirectives.length > 1) {\n        throw new Error('Too many components found');\n      }\n      // get the info of the component\n      var directiveInfo = candidateDirectives[0];\n      // create a scope if needed\n      locals = locals || {};\n      locals.$scope = locals.$scope || $rootScope.$new(true);\n      return $controller(directiveInfo.controller, locals, bindings, ident || directiveInfo.controllerAs);\n    };\n  }];\n}];\n\n\n/**\n * @ngdoc module\n * @name ngMock\n * @packageName angular-mocks\n * @description\n *\n * The `ngMock` module provides support to inject and mock AngularJS services into unit tests.\n * In addition, ngMock also extends various core AngularJS services such that they can be\n * inspected and controlled in a synchronous manner within test code.\n *\n * @installation\n *\n *  First, download the file:\n *  * [Google CDN](https://developers.google.com/speed/libraries/devguide#angularjs) e.g.\n *    `\"//ajax.googleapis.com/ajax/libs/angularjs/X.Y.Z/angular-mocks.js\"`\n *  * [NPM](https://www.npmjs.com/) e.g. `npm install angular-mocks@X.Y.Z`\n *  * [Yarn](https://yarnpkg.com) e.g. `yarn add angular-mocks@X.Y.Z`\n *  * [Bower](http://bower.io) e.g. `bower install angular-mocks#X.Y.Z`\n *  * [code.angularjs.org](https://code.angularjs.org/) (discouraged for production use)  e.g.\n *    `\"//code.angularjs.org/X.Y.Z/angular-mocks.js\"`\n *\n * where X.Y.Z is the AngularJS version you are running.\n *\n * Then, configure your test runner to load `angular-mocks.js` after `angular.js`.\n * This example uses <a href=\"http://karma-runner.github.io/\">Karma</a>:\n *\n * ```\n * config.set({\n *   files: [\n *     'build/angular.js', // and other module files you need\n *     'build/angular-mocks.js',\n *     '<path/to/application/files>',\n *     '<path/to/spec/files>'\n *   ]\n * });\n * ```\n *\n * Including the `angular-mocks.js` file automatically adds the `ngMock` module, so your tests\n *  are ready to go!\n */\nangular.module('ngMock', ['ng']).provider({\n  $browser: angular.mock.$BrowserProvider,\n  $exceptionHandler: angular.mock.$ExceptionHandlerProvider,\n  $log: angular.mock.$LogProvider,\n  $interval: angular.mock.$IntervalProvider,\n  $rootElement: angular.mock.$RootElementProvider,\n  $componentController: angular.mock.$ComponentControllerProvider\n}).config(['$provide', '$compileProvider', function($provide, $compileProvider) {\n  $provide.decorator('$timeout', angular.mock.$TimeoutDecorator);\n  $provide.decorator('$$rAF', angular.mock.$RAFDecorator);\n  $provide.decorator('$rootScope', angular.mock.$RootScopeDecorator);\n  $provide.decorator('$controller', createControllerDecorator($compileProvider));\n  $provide.decorator('$httpBackend', angular.mock.$httpBackendDecorator);\n}]).info({ angularVersion: '1.6.10' });\n\n/**\n * @ngdoc module\n * @name ngMockE2E\n * @module ngMockE2E\n * @packageName angular-mocks\n * @description\n *\n * The `ngMockE2E` is an AngularJS module which contains mocks suitable for end-to-end testing.\n * Currently there is only one mock present in this module -\n * the {@link ngMockE2E.$httpBackend e2e $httpBackend} mock.\n */\nangular.module('ngMockE2E', ['ng']).config(['$provide', function($provide) {\n  $provide.decorator('$httpBackend', angular.mock.e2e.$httpBackendDecorator);\n}]).info({ angularVersion: '1.6.10' });\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @module ngMockE2E\n * @description\n * Fake HTTP backend implementation suitable for end-to-end testing or backend-less development of\n * applications that use the {@link ng.$http $http service}.\n *\n * <div class=\"alert alert-info\">\n * **Note**: For fake http backend implementation suitable for unit testing please see\n * {@link ngMock.$httpBackend unit-testing $httpBackend mock}.\n * </div>\n *\n * This implementation can be used to respond with static or dynamic responses via the `when` api\n * and its shortcuts (`whenGET`, `whenPOST`, etc) and optionally pass through requests to the\n * real $httpBackend for specific requests (e.g. to interact with certain remote apis or to fetch\n * templates from a webserver).\n *\n * As opposed to unit-testing, in an end-to-end testing scenario or in scenario when an application\n * is being developed with the real backend api replaced with a mock, it is often desirable for\n * certain category of requests to bypass the mock and issue a real http request (e.g. to fetch\n * templates or static files from the webserver). To configure the backend with this behavior\n * use the `passThrough` request handler of `when` instead of `respond`.\n *\n * Additionally, we don't want to manually have to flush mocked out requests like we do during unit\n * testing. For this reason the e2e $httpBackend flushes mocked out requests\n * automatically, closely simulating the behavior of the XMLHttpRequest object.\n *\n * To setup the application to run with this http backend, you have to create a module that depends\n * on the `ngMockE2E` and your application modules and defines the fake backend:\n *\n * ```js\n *   var myAppDev = angular.module('myAppDev', ['myApp', 'ngMockE2E']);\n *   myAppDev.run(function($httpBackend) {\n *     var phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *     $httpBackend.whenGET(/^\\/templates\\//).passThrough(); // Requests for templates are handled by the real server\n *     //...\n *   });\n * ```\n *\n * Afterwards, bootstrap your app with this new module.\n *\n * @example\n * <example name=\"httpbackend-e2e-testing\" module=\"myAppE2E\" deps=\"angular-mocks.js\">\n * <file name=\"app.js\">\n *   var myApp = angular.module('myApp', []);\n *\n *   myApp.controller('MainCtrl', function MainCtrl($http) {\n *     var ctrl = this;\n *\n *     ctrl.phones = [];\n *     ctrl.newPhone = {\n *       name: ''\n *     };\n *\n *     ctrl.getPhones = function() {\n *       $http.get('/phones').then(function(response) {\n *         ctrl.phones = response.data;\n *       });\n *     };\n *\n *     ctrl.addPhone = function(phone) {\n *       $http.post('/phones', phone).then(function() {\n *         ctrl.newPhone = {name: ''};\n *         return ctrl.getPhones();\n *       });\n *     };\n *\n *     ctrl.getPhones();\n *   });\n * </file>\n * <file name=\"e2e.js\">\n *   var myAppDev = angular.module('myAppE2E', ['myApp', 'ngMockE2E']);\n *\n *   myAppDev.run(function($httpBackend) {\n *     var phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *   });\n * </file>\n * <file name=\"index.html\">\n *   <div ng-controller=\"MainCtrl as $ctrl\">\n *   <form name=\"newPhoneForm\" ng-submit=\"$ctrl.addPhone($ctrl.newPhone)\">\n *     <input type=\"text\" ng-model=\"$ctrl.newPhone.name\">\n *     <input type=\"submit\" value=\"Add Phone\">\n *   </form>\n *   <h1>Phones</h1>\n *   <ul>\n *     <li ng-repeat=\"phone in $ctrl.phones\">{{phone.name}}</li>\n *   </ul>\n *   </div>\n * </file>\n * </example>\n *\n *\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#when\n * @module ngMockE2E\n * @description\n * Creates a new backend definition.\n *\n * @param {string} method HTTP method.\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n *   object and returns true if the headers match the current definition.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n *\n *  - respond –\n *    ```\n *    { function([status,] data[, headers, statusText])\n *    | function(function(method, url, data, headers, params)}\n *    ```\n *    – The respond method takes a set of static data to be returned or a function that can return\n *    an array containing response status (number), response data (Array|Object|string), response\n *    headers (Object), and the text for the status (string).\n *  - passThrough – `{function()}` – Any request matching a backend definition with\n *    `passThrough` handler will be passed through to the real backend (an XHR request will be made\n *    to the server.)\n *  - Both methods return the `requestHandler` object for possible overrides.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenGET\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for GET requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenHEAD\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for HEAD requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenDELETE\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for DELETE requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPOST\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for POST requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPUT\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PUT requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPATCH\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PATCH requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenJSONP\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for JSONP requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n/**\n * @ngdoc method\n * @name $httpBackend#whenRoute\n * @module ngMockE2E\n * @description\n * Creates a new backend definition that compares only with the requested route.\n *\n * @param {string} method HTTP method.\n * @param {string} url HTTP url string that supports colon param matching.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\nangular.mock.e2e = {};\nangular.mock.e2e.$httpBackendDecorator =\n  ['$rootScope', '$timeout', '$delegate', '$browser', createHttpBackendMock];\n\n\n/**\n * @ngdoc type\n * @name $rootScope.Scope\n * @module ngMock\n * @description\n * {@link ng.$rootScope.Scope Scope} type decorated with helper methods useful for testing. These\n * methods are automatically available on any {@link ng.$rootScope.Scope Scope} instance when\n * `ngMock` module is loaded.\n *\n * In addition to all the regular `Scope` methods, the following helper methods are available:\n */\nangular.mock.$RootScopeDecorator = ['$delegate', function($delegate) {\n\n  var $rootScopePrototype = Object.getPrototypeOf($delegate);\n\n  $rootScopePrototype.$countChildScopes = countChildScopes;\n  $rootScopePrototype.$countWatchers = countWatchers;\n\n  return $delegate;\n\n  // ------------------------------------------------------------------------------------------ //\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countChildScopes\n   * @module ngMock\n   * @this $rootScope.Scope\n   * @description\n   * Counts all the direct and indirect child scopes of the current scope.\n   *\n   * The current scope is excluded from the count. The count includes all isolate child scopes.\n   *\n   * @returns {number} Total number of child scopes.\n   */\n  function countChildScopes() {\n    var count = 0; // exclude the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += 1;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countWatchers\n   * @this $rootScope.Scope\n   * @module ngMock\n   * @description\n   * Counts all the watchers of direct and indirect child scopes of the current scope.\n   *\n   * The watchers of the current scope are included in the count and so are all the watchers of\n   * isolate child scopes.\n   *\n   * @returns {number} Total number of watchers.\n   */\n  function countWatchers() {\n    var count = this.$$watchers ? this.$$watchers.length : 0; // include the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += currentScope.$$watchers ? currentScope.$$watchers.length : 0;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n}];\n\n\n(function(jasmineOrMocha) {\n\n  if (!jasmineOrMocha) {\n    return;\n  }\n\n  var currentSpec = null,\n      injectorState = new InjectorState(),\n      annotatedFunctions = [],\n      wasInjectorCreated = function() {\n        return !!currentSpec;\n      };\n\n  angular.mock.$$annotate = angular.injector.$$annotate;\n  angular.injector.$$annotate = function(fn) {\n    if (typeof fn === 'function' && !fn.$inject) {\n      annotatedFunctions.push(fn);\n    }\n    return angular.mock.$$annotate.apply(this, arguments);\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function registers a module configuration code. It collects the configuration information\n   * which will be used when the injector is created by {@link angular.mock.inject inject}.\n   *\n   * See {@link angular.mock.inject inject} for usage example\n   *\n   * @param {...(string|Function|Object)} fns any number of modules which are represented as string\n   *        aliases or as anonymous module initialization functions. The modules are used to\n   *        configure the injector. The 'ng' and 'ngMock' modules are automatically loaded. If an\n   *        object literal is passed each key-value pair will be registered on the module via\n   *        {@link auto.$provide $provide}.value, the key being the string name (or token) to associate\n   *        with the value on the injector.\n   */\n  var module = window.module = angular.mock.module = function() {\n    var moduleFns = Array.prototype.slice.call(arguments, 0);\n    return wasInjectorCreated() ? workFn() : workFn;\n    /////////////////////\n    function workFn() {\n      if (currentSpec.$injector) {\n        throw new Error('Injector already created, can not register a module!');\n      } else {\n        var fn, modules = currentSpec.$modules || (currentSpec.$modules = []);\n        angular.forEach(moduleFns, function(module) {\n          if (angular.isObject(module) && !angular.isArray(module)) {\n            fn = ['$provide', function($provide) {\n              angular.forEach(module, function(value, key) {\n                $provide.value(key, value);\n              });\n            }];\n          } else {\n            fn = module;\n          }\n          if (currentSpec.$providerInjector) {\n            currentSpec.$providerInjector.invoke(fn);\n          } else {\n            modules.push(fn);\n          }\n        });\n      }\n    }\n  };\n\n  module.$$beforeAllHook = (window.before || window.beforeAll);\n  module.$$afterAllHook = (window.after || window.afterAll);\n\n  // purely for testing ngMock itself\n  module.$$currentSpec = function(to) {\n    if (arguments.length === 0) return to;\n    currentSpec = to;\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module.sharedInjector\n   * @description\n   *\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function ensures a single injector will be used for all tests in a given describe context.\n   * This contrasts with the default behaviour where a new injector is created per test case.\n   *\n   * Use sharedInjector when you want to take advantage of Jasmine's `beforeAll()`, or mocha's\n   * `before()` methods. Call `module.sharedInjector()` before you setup any other hooks that\n   * will create (i.e call `module()`) or use (i.e call `inject()`) the injector.\n   *\n   * You cannot call `sharedInjector()` from within a context already using `sharedInjector()`.\n   *\n   * ## Example\n   *\n   * Typically beforeAll is used to make many assertions about a single operation. This can\n   * cut down test run-time as the test setup doesn't need to be re-run, and enabling focussed\n   * tests each with a single assertion.\n   *\n   * ```js\n   * describe(\"Deep Thought\", function() {\n   *\n   *   module.sharedInjector();\n   *\n   *   beforeAll(module(\"UltimateQuestion\"));\n   *\n   *   beforeAll(inject(function(DeepThought) {\n   *     expect(DeepThought.answer).toBeUndefined();\n   *     DeepThought.generateAnswer();\n   *   }));\n   *\n   *   it(\"has calculated the answer correctly\", inject(function(DeepThought) {\n   *     // Because of sharedInjector, we have access to the instance of the DeepThought service\n   *     // that was provided to the beforeAll() hook. Therefore we can test the generated answer\n   *     expect(DeepThought.answer).toBe(42);\n   *   }));\n   *\n   *   it(\"has calculated the answer within the expected time\", inject(function(DeepThought) {\n   *     expect(DeepThought.runTimeMillennia).toBeLessThan(8000);\n   *   }));\n   *\n   *   it(\"has double checked the answer\", inject(function(DeepThought) {\n   *     expect(DeepThought.absolutelySureItIsTheRightAnswer).toBe(true);\n   *   }));\n   *\n   * });\n   *\n   * ```\n   */\n  module.sharedInjector = function() {\n    if (!(module.$$beforeAllHook && module.$$afterAllHook)) {\n      throw Error('sharedInjector() cannot be used unless your test runner defines beforeAll/afterAll');\n    }\n\n    var initialized = false;\n\n    module.$$beforeAllHook(/** @this */ function() {\n      if (injectorState.shared) {\n        injectorState.sharedError = Error('sharedInjector() cannot be called inside a context that has already called sharedInjector()');\n        throw injectorState.sharedError;\n      }\n      initialized = true;\n      currentSpec = this;\n      injectorState.shared = true;\n    });\n\n    module.$$afterAllHook(function() {\n      if (initialized) {\n        injectorState = new InjectorState();\n        module.$$cleanup();\n      } else {\n        injectorState.sharedError = null;\n      }\n    });\n  };\n\n  module.$$beforeEach = function() {\n    if (injectorState.shared && currentSpec && currentSpec !== this) {\n      var state = currentSpec;\n      currentSpec = this;\n      angular.forEach(['$injector','$modules','$providerInjector', '$injectorStrict'], function(k) {\n        currentSpec[k] = state[k];\n        state[k] = null;\n      });\n    } else {\n      currentSpec = this;\n      originalRootElement = null;\n      annotatedFunctions = [];\n    }\n  };\n\n  module.$$afterEach = function() {\n    if (injectorState.cleanupAfterEach()) {\n      module.$$cleanup();\n    }\n  };\n\n  module.$$cleanup = function() {\n    var injector = currentSpec.$injector;\n\n    annotatedFunctions.forEach(function(fn) {\n      delete fn.$inject;\n    });\n\n    currentSpec.$injector = null;\n    currentSpec.$modules = null;\n    currentSpec.$providerInjector = null;\n    currentSpec = null;\n\n    if (injector) {\n      // Ensure `$rootElement` is instantiated, before checking `originalRootElement`\n      var $rootElement = injector.get('$rootElement');\n      var rootNode = $rootElement && $rootElement[0];\n      var cleanUpNodes = !originalRootElement ? [] : [originalRootElement[0]];\n      if (rootNode && (!originalRootElement || rootNode !== originalRootElement[0])) {\n        cleanUpNodes.push(rootNode);\n      }\n      angular.element.cleanData(cleanUpNodes);\n\n      // Ensure `$destroy()` is available, before calling it\n      // (a mocked `$rootScope` might not implement it (or not even be an object at all))\n      var $rootScope = injector.get('$rootScope');\n      if ($rootScope && $rootScope.$destroy) $rootScope.$destroy();\n    }\n\n    // clean up jquery's fragment cache\n    angular.forEach(angular.element.fragments, function(val, key) {\n      delete angular.element.fragments[key];\n    });\n\n    MockXhr.$$lastInstance = null;\n\n    angular.forEach(angular.callbacks, function(val, key) {\n      delete angular.callbacks[key];\n    });\n    angular.callbacks.$$counter = 0;\n  };\n\n  (window.beforeEach || window.setup)(module.$$beforeEach);\n  (window.afterEach || window.teardown)(module.$$afterEach);\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.inject\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * The inject function wraps a function into an injectable function. The inject() creates new\n   * instance of {@link auto.$injector $injector} per test, which is then used for\n   * resolving references.\n   *\n   *\n   * ## Resolving References (Underscore Wrapping)\n   * Often, we would like to inject a reference once, in a `beforeEach()` block and reuse this\n   * in multiple `it()` clauses. To be able to do this we must assign the reference to a variable\n   * that is declared in the scope of the `describe()` block. Since we would, most likely, want\n   * the variable to have the same name of the reference we have a problem, since the parameter\n   * to the `inject()` function would hide the outer variable.\n   *\n   * To help with this, the injected parameters can, optionally, be enclosed with underscores.\n   * These are ignored by the injector when the reference name is resolved.\n   *\n   * For example, the parameter `_myService_` would be resolved as the reference `myService`.\n   * Since it is available in the function body as `_myService_`, we can then assign it to a variable\n   * defined in an outer scope.\n   *\n   * ```\n   * // Defined out reference variable outside\n   * var myService;\n   *\n   * // Wrap the parameter in underscores\n   * beforeEach( inject( function(_myService_){\n   *   myService = _myService_;\n   * }));\n   *\n   * // Use myService in a series of tests.\n   * it('makes use of myService', function() {\n   *   myService.doStuff();\n   * });\n   *\n   * ```\n   *\n   * See also {@link angular.mock.module angular.mock.module}\n   *\n   * ## Example\n   * Example of what a typical jasmine tests looks like with the inject method.\n   * ```js\n   *\n   *   angular.module('myApplicationModule', [])\n   *       .value('mode', 'app')\n   *       .value('version', 'v1.0.1');\n   *\n   *\n   *   describe('MyApp', function() {\n   *\n   *     // You need to load modules that you want to test,\n   *     // it loads only the \"ng\" module by default.\n   *     beforeEach(module('myApplicationModule'));\n   *\n   *\n   *     // inject() is used to inject arguments of all given functions\n   *     it('should provide a version', inject(function(mode, version) {\n   *       expect(version).toEqual('v1.0.1');\n   *       expect(mode).toEqual('app');\n   *     }));\n   *\n   *\n   *     // The inject and module method can also be used inside of the it or beforeEach\n   *     it('should override a version and test the new version is injected', function() {\n   *       // module() takes functions or strings (module aliases)\n   *       module(function($provide) {\n   *         $provide.value('version', 'overridden'); // override version here\n   *       });\n   *\n   *       inject(function(version) {\n   *         expect(version).toEqual('overridden');\n   *       });\n   *     });\n   *   });\n   *\n   * ```\n   *\n   * @param {...Function} fns any number of functions which will be injected using the injector.\n   */\n\n\n\n  var ErrorAddingDeclarationLocationStack = function ErrorAddingDeclarationLocationStack(e, errorForStack) {\n    this.message = e.message;\n    this.name = e.name;\n    if (e.line) this.line = e.line;\n    if (e.sourceId) this.sourceId = e.sourceId;\n    if (e.stack && errorForStack)\n      this.stack = e.stack + '\\n' + errorForStack.stack;\n    if (e.stackArray) this.stackArray = e.stackArray;\n  };\n  ErrorAddingDeclarationLocationStack.prototype = Error.prototype;\n\n  window.inject = angular.mock.inject = function() {\n    var blockFns = Array.prototype.slice.call(arguments, 0);\n    var errorForStack = new Error('Declaration Location');\n    // IE10+ and PhanthomJS do not set stack trace information, until the error is thrown\n    if (!errorForStack.stack) {\n      try {\n        throw errorForStack;\n      } catch (e) { /* empty */ }\n    }\n    return wasInjectorCreated() ? WorkFn.call(currentSpec) : WorkFn;\n    /////////////////////\n    function WorkFn() {\n      var modules = currentSpec.$modules || [];\n      var strictDi = !!currentSpec.$injectorStrict;\n      modules.unshift(['$injector', function($injector) {\n        currentSpec.$providerInjector = $injector;\n      }]);\n      modules.unshift('ngMock');\n      modules.unshift('ng');\n      var injector = currentSpec.$injector;\n      if (!injector) {\n        if (strictDi) {\n          // If strictDi is enabled, annotate the providerInjector blocks\n          angular.forEach(modules, function(moduleFn) {\n            if (typeof moduleFn === 'function') {\n              angular.injector.$$annotate(moduleFn);\n            }\n          });\n        }\n        injector = currentSpec.$injector = angular.injector(modules, strictDi);\n        currentSpec.$injectorStrict = strictDi;\n      }\n      for (var i = 0, ii = blockFns.length; i < ii; i++) {\n        if (currentSpec.$injectorStrict) {\n          // If the injector is strict / strictDi, and the spec wants to inject using automatic\n          // annotation, then annotate the function here.\n          injector.annotate(blockFns[i]);\n        }\n        try {\n          injector.invoke(blockFns[i] || angular.noop, this);\n        } catch (e) {\n          if (e.stack && errorForStack) {\n            throw new ErrorAddingDeclarationLocationStack(e, errorForStack);\n          }\n          throw e;\n        } finally {\n          errorForStack = null;\n        }\n      }\n    }\n  };\n\n\n  angular.mock.inject.strictDi = function(value) {\n    value = arguments.length ? !!value : true;\n    return wasInjectorCreated() ? workFn() : workFn;\n\n    function workFn() {\n      if (value !== currentSpec.$injectorStrict) {\n        if (currentSpec.$injector) {\n          throw new Error('Injector already created, can not modify strict annotations');\n        } else {\n          currentSpec.$injectorStrict = value;\n        }\n      }\n    }\n  };\n\n  function InjectorState() {\n    this.shared = false;\n    this.sharedError = null;\n\n    this.cleanupAfterEach = function() {\n      return !this.shared || this.sharedError;\n    };\n  }\n})(window.jasmine || window.mocha);\n\n'use strict';\n\n(function() {\n  /**\n   * @ngdoc function\n   * @name browserTrigger\n   * @description\n   *\n   * This is a global (window) function that is only available when the {@link ngMock} module is\n   * included.\n   *\n   * It can be used to trigger a native browser event on an element, which is useful for unit testing.\n   *\n   *\n   * @param {Object} element Either a wrapped jQuery/jqLite node or a DOMElement\n   * @param {string=} eventType Optional event type. If none is specified, the function tries\n   *                            to determine the right event type for the element, e.g. `change` for\n   *                            `input[text]`.\n   * @param {Object=} eventData An optional object which contains additional event data that is used\n   *                            when creating the event:\n   *\n   *  - `bubbles`: [Event.bubbles](https://developer.mozilla.org/docs/Web/API/Event/bubbles).\n   *    Not applicable to all events.\n   *\n   *  - `cancelable`: [Event.cancelable](https://developer.mozilla.org/docs/Web/API/Event/cancelable).\n   *    Not applicable to all events.\n   *\n   *  - `charcode`: [charCode](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/charcode)\n   *    for keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `elapsedTime`: the elapsedTime for\n   *    [TransitionEvent](https://developer.mozilla.org/docs/Web/API/TransitionEvent)\n   *    and [AnimationEvent](https://developer.mozilla.org/docs/Web/API/AnimationEvent).\n   *\n   *  - `keycode`: [keyCode](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/keycode)\n   *    for keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `keys`: an array of possible modifier keys (ctrl, alt, shift, meta) for\n   *    [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent) and\n   *    keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `relatedTarget`: the\n   *    [relatedTarget](https://developer.mozilla.org/docs/Web/API/MouseEvent/relatedTarget)\n   *    for [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent).\n   *\n   *  - `which`: [which](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/which)\n   *    for keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `x`: x-coordinates for [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent)\n   *    and [TouchEvent](https://developer.mozilla.org/docs/Web/API/TouchEvent).\n   *\n   *  - `y`: y-coordinates for [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent)\n   *    and [TouchEvent](https://developer.mozilla.org/docs/Web/API/TouchEvent).\n   *\n   */\n  window.browserTrigger = function browserTrigger(element, eventType, eventData) {\n    if (element && !element.nodeName) element = element[0];\n    if (!element) return;\n\n    eventData = eventData || {};\n    var relatedTarget = eventData.relatedTarget || element;\n    var keys = eventData.keys;\n    var x = eventData.x;\n    var y = eventData.y;\n\n    var inputType = (element.type) ? element.type.toLowerCase() : null,\n        nodeName = element.nodeName.toLowerCase();\n    if (!eventType) {\n      eventType = {\n        'text':            'change',\n        'textarea':        'change',\n        'hidden':          'change',\n        'password':        'change',\n        'button':          'click',\n        'submit':          'click',\n        'reset':           'click',\n        'image':           'click',\n        'checkbox':        'click',\n        'radio':           'click',\n        'select-one':      'change',\n        'select-multiple': 'change',\n        '_default_':       'click'\n      }[inputType || '_default_'];\n    }\n\n    if (nodeName === 'option') {\n      element.parentNode.value = element.value;\n      element = element.parentNode;\n      eventType = 'change';\n    }\n\n    keys = keys || [];\n    function pressed(key) {\n      return keys.indexOf(key) !== -1;\n    }\n\n    var evnt;\n    if (/transitionend/.test(eventType)) {\n      if (window.WebKitTransitionEvent) {\n        evnt = new window.WebKitTransitionEvent(eventType, eventData);\n        evnt.initEvent(eventType, eventData.bubbles, true);\n      } else {\n        try {\n          evnt = new window.TransitionEvent(eventType, eventData);\n        } catch (e) {\n          evnt = window.document.createEvent('TransitionEvent');\n          evnt.initTransitionEvent(eventType, eventData.bubbles, null, null, eventData.elapsedTime || 0);\n        }\n      }\n    } else if (/animationend/.test(eventType)) {\n      if (window.WebKitAnimationEvent) {\n        evnt = new window.WebKitAnimationEvent(eventType, eventData);\n        evnt.initEvent(eventType, eventData.bubbles, true);\n      } else {\n        try {\n          evnt = new window.AnimationEvent(eventType, eventData);\n        } catch (e) {\n          evnt = window.document.createEvent('AnimationEvent');\n          evnt.initAnimationEvent(eventType, eventData.bubbles, null, null, eventData.elapsedTime || 0);\n        }\n      }\n    } else if (/touch/.test(eventType) && supportsTouchEvents()) {\n      evnt = createTouchEvent(element, eventType, x, y);\n    } else if (/key/.test(eventType)) {\n      evnt = window.document.createEvent('Events');\n      evnt.initEvent(eventType, eventData.bubbles, eventData.cancelable);\n      evnt.view = window;\n      evnt.ctrlKey = pressed('ctrl');\n      evnt.altKey = pressed('alt');\n      evnt.shiftKey = pressed('shift');\n      evnt.metaKey = pressed('meta');\n      evnt.keyCode = eventData.keyCode;\n      evnt.charCode = eventData.charCode;\n      evnt.which = eventData.which;\n    } else if (/composition/.test(eventType)) {\n      try {\n        evnt = new window.CompositionEvent(eventType, {\n          data: eventData.data\n        });\n      } catch (e) {\n        // Support: IE9+\n        evnt = window.document.createEvent('CompositionEvent', {});\n        evnt.initCompositionEvent(\n          eventType,\n          eventData.bubbles,\n          eventData.cancelable,\n          window,\n          eventData.data,\n          null\n        );\n      }\n\n    } else {\n      evnt = window.document.createEvent('MouseEvents');\n      x = x || 0;\n      y = y || 0;\n      evnt.initMouseEvent(eventType, true, true, window, 0, x, y, x, y, pressed('ctrl'),\n          pressed('alt'), pressed('shift'), pressed('meta'), 0, relatedTarget);\n    }\n\n    /* we're unable to change the timeStamp value directly so this\n     * is only here to allow for testing where the timeStamp value is\n     * read */\n    evnt.$manualTimeStamp = eventData.timeStamp;\n\n    if (!evnt) return;\n\n    var originalPreventDefault = evnt.preventDefault,\n        appWindow = element.ownerDocument.defaultView,\n        fakeProcessDefault = true,\n        finalProcessDefault,\n        angular = appWindow.angular || {};\n\n    // igor: temporary fix for https://bugzilla.mozilla.org/show_bug.cgi?id=684208\n    angular['ff-684208-preventDefault'] = false;\n    evnt.preventDefault = function() {\n      fakeProcessDefault = false;\n      return originalPreventDefault.apply(evnt, arguments);\n    };\n\n    if (!eventData.bubbles || supportsEventBubblingInDetachedTree() || isAttachedToDocument(element)) {\n      element.dispatchEvent(evnt);\n    } else {\n      triggerForPath(element, evnt);\n    }\n\n    finalProcessDefault = !(angular['ff-684208-preventDefault'] || !fakeProcessDefault);\n\n    delete angular['ff-684208-preventDefault'];\n\n    return finalProcessDefault;\n  };\n\n  function supportsTouchEvents() {\n    if ('_cached' in supportsTouchEvents) {\n      return supportsTouchEvents._cached;\n    }\n    if (!window.document.createTouch || !window.document.createTouchList) {\n      supportsTouchEvents._cached = false;\n      return false;\n    }\n    try {\n      window.document.createEvent('TouchEvent');\n    } catch (e) {\n      supportsTouchEvents._cached = false;\n      return false;\n    }\n    supportsTouchEvents._cached = true;\n    return true;\n  }\n\n  function createTouchEvent(element, eventType, x, y) {\n    var evnt = new window.Event(eventType);\n    x = x || 0;\n    y = y || 0;\n\n    var touch = window.document.createTouch(window, element, Date.now(), x, y, x, y);\n    var touches = window.document.createTouchList(touch);\n\n    evnt.touches = touches;\n\n    return evnt;\n  }\n\n  function supportsEventBubblingInDetachedTree() {\n    if ('_cached' in supportsEventBubblingInDetachedTree) {\n      return supportsEventBubblingInDetachedTree._cached;\n    }\n    supportsEventBubblingInDetachedTree._cached = false;\n    var doc = window.document;\n    if (doc) {\n      var parent = doc.createElement('div'),\n          child = parent.cloneNode();\n      parent.appendChild(child);\n      parent.addEventListener('e', function() {\n        supportsEventBubblingInDetachedTree._cached = true;\n      });\n      var evnt = window.document.createEvent('Events');\n      evnt.initEvent('e', true, true);\n      child.dispatchEvent(evnt);\n    }\n    return supportsEventBubblingInDetachedTree._cached;\n  }\n\n  function triggerForPath(element, evnt) {\n    var stop = false;\n\n    var _stopPropagation = evnt.stopPropagation;\n    evnt.stopPropagation = function() {\n      stop = true;\n      _stopPropagation.apply(evnt, arguments);\n    };\n    patchEventTargetForBubbling(evnt, element);\n    do {\n      element.dispatchEvent(evnt);\n      // eslint-disable-next-line no-unmodified-loop-condition\n    } while (!stop && (element = element.parentNode));\n  }\n\n  function patchEventTargetForBubbling(event, target) {\n    event._target = target;\n    Object.defineProperty(event, 'target', {get: function() { return this._target;}});\n  }\n\n  function isAttachedToDocument(element) {\n    while ((element = element.parentNode)) {\n        if (element === window) {\n            return true;\n        }\n    }\n    return false;\n  }\n})();\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.6/angular.js",
    "content": "/**\n * @license AngularJS v1.6.10\n * (c) 2010-2018 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window) {'use strict';\n\n/* exported\n  minErrConfig,\n  errorHandlingConfig,\n  isValidObjectMaxDepth\n*/\n\nvar minErrConfig = {\n  objectMaxDepth: 5\n};\n\n/**\n * @ngdoc function\n * @name angular.errorHandlingConfig\n * @module ng\n * @kind function\n *\n * @description\n * Configure several aspects of error handling in AngularJS if used as a setter or return the\n * current configuration if used as a getter. The following options are supported:\n *\n * - **objectMaxDepth**: The maximum depth to which objects are traversed when stringified for error messages.\n *\n * Omitted or undefined options will leave the corresponding configuration values unchanged.\n *\n * @param {Object=} config - The configuration object. May only contain the options that need to be\n *     updated. Supported keys:\n *\n * * `objectMaxDepth`  **{Number}** - The max depth for stringifying objects. Setting to a\n *   non-positive or non-numeric value, removes the max depth limit.\n *   Default: 5\n */\nfunction errorHandlingConfig(config) {\n  if (isObject(config)) {\n    if (isDefined(config.objectMaxDepth)) {\n      minErrConfig.objectMaxDepth = isValidObjectMaxDepth(config.objectMaxDepth) ? config.objectMaxDepth : NaN;\n    }\n  } else {\n    return minErrConfig;\n  }\n}\n\n/**\n * @private\n * @param {Number} maxDepth\n * @return {boolean}\n */\nfunction isValidObjectMaxDepth(maxDepth) {\n  return isNumber(maxDepth) && maxDepth > 0;\n}\n\n/**\n * @description\n *\n * This object provides a utility for producing rich Error messages within\n * AngularJS. It can be called as follows:\n *\n * var exampleMinErr = minErr('example');\n * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);\n *\n * The above creates an instance of minErr in the example namespace. The\n * resulting error will have a namespaced error code of example.one.  The\n * resulting error will replace {0} with the value of foo, and {1} with the\n * value of bar. The object is not restricted in the number of arguments it can\n * take.\n *\n * If fewer arguments are specified than necessary for interpolation, the extra\n * interpolation markers will be preserved in the final string.\n *\n * Since data will be parsed statically during a build step, some restrictions\n * are applied with respect to how minErr instances are created and called.\n * Instances should have names of the form namespaceMinErr for a minErr created\n * using minErr('namespace') . Error codes, namespaces and template strings\n * should all be static strings, not variables or general expressions.\n *\n * @param {string} module The namespace to use for the new minErr instance.\n * @param {function} ErrorConstructor Custom error constructor to be instantiated when returning\n *   error from returned function, for cases when a particular type of error is useful.\n * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance\n */\n\nfunction minErr(module, ErrorConstructor) {\n  ErrorConstructor = ErrorConstructor || Error;\n\n  var url = 'https://errors.angularjs.org/1.6.10/';\n  var regex = url.replace('.', '\\\\.') + '[\\\\s\\\\S]*';\n  var errRegExp = new RegExp(regex, 'g');\n\n  return function() {\n    var code = arguments[0],\n      template = arguments[1],\n      message = '[' + (module ? module + ':' : '') + code + '] ',\n      templateArgs = sliceArgs(arguments, 2).map(function(arg) {\n        return toDebugString(arg, minErrConfig.objectMaxDepth);\n      }),\n      paramPrefix, i;\n\n    // A minErr message has two parts: the message itself and the url that contains the\n    // encoded message.\n    // The message's parameters can contain other error messages which also include error urls.\n    // To prevent the messages from getting too long, we strip the error urls from the parameters.\n\n    message += template.replace(/\\{\\d+\\}/g, function(match) {\n      var index = +match.slice(1, -1);\n\n      if (index < templateArgs.length) {\n        return templateArgs[index].replace(errRegExp, '');\n      }\n\n      return match;\n    });\n\n    message += '\\n' + url + (module ? module + '/' : '') + code;\n\n    for (i = 0, paramPrefix = '?'; i < templateArgs.length; i++, paramPrefix = '&') {\n      message += paramPrefix + 'p' + i + '=' + encodeURIComponent(templateArgs[i]);\n    }\n\n    return new ErrorConstructor(message);\n  };\n}\n\n/* We need to tell ESLint what variables are being exported */\n/* exported\n  angular,\n  msie,\n  jqLite,\n  jQuery,\n  slice,\n  splice,\n  push,\n  toString,\n  minErrConfig,\n  errorHandlingConfig,\n  isValidObjectMaxDepth,\n  ngMinErr,\n  angularModule,\n  uid,\n  REGEX_STRING_REGEXP,\n  VALIDITY_STATE_PROPERTY,\n\n  lowercase,\n  uppercase,\n  manualLowercase,\n  manualUppercase,\n  nodeName_,\n  isArrayLike,\n  forEach,\n  forEachSorted,\n  reverseParams,\n  nextUid,\n  setHashKey,\n  extend,\n  toInt,\n  inherit,\n  merge,\n  noop,\n  identity,\n  valueFn,\n  isUndefined,\n  isDefined,\n  isObject,\n  isBlankObject,\n  isString,\n  isNumber,\n  isNumberNaN,\n  isDate,\n  isError,\n  isArray,\n  isFunction,\n  isRegExp,\n  isWindow,\n  isScope,\n  isFile,\n  isFormData,\n  isBlob,\n  isBoolean,\n  isPromiseLike,\n  trim,\n  escapeForRegexp,\n  isElement,\n  makeMap,\n  includes,\n  arrayRemove,\n  copy,\n  simpleCompare,\n  equals,\n  csp,\n  jq,\n  concat,\n  sliceArgs,\n  bind,\n  toJsonReplacer,\n  toJson,\n  fromJson,\n  convertTimezoneToLocal,\n  timezoneToOffset,\n  addDateMinutes,\n  startingTag,\n  tryDecodeURIComponent,\n  parseKeyValue,\n  toKeyValue,\n  encodeUriSegment,\n  encodeUriQuery,\n  angularInit,\n  bootstrap,\n  getTestability,\n  snake_case,\n  bindJQuery,\n  assertArg,\n  assertArgFn,\n  assertNotHasOwnProperty,\n  getter,\n  getBlockNodes,\n  hasOwnProperty,\n  createMap,\n  stringify,\n\n  NODE_TYPE_ELEMENT,\n  NODE_TYPE_ATTRIBUTE,\n  NODE_TYPE_TEXT,\n  NODE_TYPE_COMMENT,\n  NODE_TYPE_DOCUMENT,\n  NODE_TYPE_DOCUMENT_FRAGMENT\n*/\n\n////////////////////////////////////\n\n/**\n * @ngdoc module\n * @name ng\n * @module ng\n * @installation\n * @description\n *\n * The ng module is loaded by default when an AngularJS application is started. The module itself\n * contains the essential components for an AngularJS application to function. The table below\n * lists a high level breakdown of each of the services/factories, filters, directives and testing\n * components available within this core module.\n *\n */\n\nvar REGEX_STRING_REGEXP = /^\\/(.+)\\/([a-z]*)$/;\n\n// The name of a form control's ValidityState property.\n// This is used so that it's possible for internal tests to create mock ValidityStates.\nvar VALIDITY_STATE_PROPERTY = 'validity';\n\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\n/**\n * @ngdoc function\n * @name angular.lowercase\n * @module ng\n * @kind function\n *\n * @deprecated\n * sinceVersion=\"1.5.0\"\n * removeVersion=\"1.7.0\"\n * Use [String.prototype.toLowerCase](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toLowerCase) instead.\n *\n * @description Converts the specified string to lowercase.\n * @param {string} string String to be converted to lowercase.\n * @returns {string} Lowercased string.\n */\nvar lowercase = function(string) {return isString(string) ? string.toLowerCase() : string;};\n\n/**\n * @ngdoc function\n * @name angular.uppercase\n * @module ng\n * @kind function\n *\n * @deprecated\n * sinceVersion=\"1.5.0\"\n * removeVersion=\"1.7.0\"\n * Use [String.prototype.toUpperCase](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase) instead.\n *\n * @description Converts the specified string to uppercase.\n * @param {string} string String to be converted to uppercase.\n * @returns {string} Uppercased string.\n */\nvar uppercase = function(string) {return isString(string) ? string.toUpperCase() : string;};\n\n\nvar manualLowercase = function(s) {\n  /* eslint-disable no-bitwise */\n  return isString(s)\n      ? s.replace(/[A-Z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) | 32);})\n      : s;\n  /* eslint-enable */\n};\nvar manualUppercase = function(s) {\n  /* eslint-disable no-bitwise */\n  return isString(s)\n      ? s.replace(/[a-z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) & ~32);})\n      : s;\n  /* eslint-enable */\n};\n\n\n// String#toLowerCase and String#toUpperCase don't produce correct results in browsers with Turkish\n// locale, for this reason we need to detect this case and redefine lowercase/uppercase methods\n// with correct but slower alternatives. See https://github.com/angular/angular.js/issues/11387\nif ('i' !== 'I'.toLowerCase()) {\n  lowercase = manualLowercase;\n  uppercase = manualUppercase;\n}\n\n\nvar\n    msie,             // holds major version number for IE, or NaN if UA is not IE.\n    jqLite,           // delay binding since jQuery could be loaded after us.\n    jQuery,           // delay binding\n    slice             = [].slice,\n    splice            = [].splice,\n    push              = [].push,\n    toString          = Object.prototype.toString,\n    getPrototypeOf    = Object.getPrototypeOf,\n    ngMinErr          = minErr('ng'),\n\n    /** @name angular */\n    angular           = window.angular || (window.angular = {}),\n    angularModule,\n    uid               = 0;\n\n// Support: IE 9-11 only\n/**\n * documentMode is an IE-only property\n * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx\n */\nmsie = window.document.documentMode;\n\n\n/**\n * @private\n * @param {*} obj\n * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,\n *                   String ...)\n */\nfunction isArrayLike(obj) {\n\n  // `null`, `undefined` and `window` are not array-like\n  if (obj == null || isWindow(obj)) return false;\n\n  // arrays, strings and jQuery/jqLite objects are array like\n  // * jqLite is either the jQuery or jqLite constructor function\n  // * we have to check the existence of jqLite first as this method is called\n  //   via the forEach method when constructing the jqLite object in the first place\n  if (isArray(obj) || isString(obj) || (jqLite && obj instanceof jqLite)) return true;\n\n  // Support: iOS 8.2 (not reproducible in simulator)\n  // \"length\" in obj used to prevent JIT error (gh-11508)\n  var length = 'length' in Object(obj) && obj.length;\n\n  // NodeList objects (with `item` method) and\n  // other objects with suitable length characteristics are array-like\n  return isNumber(length) &&\n    (length >= 0 && ((length - 1) in obj || obj instanceof Array) || typeof obj.item === 'function');\n\n}\n\n/**\n * @ngdoc function\n * @name angular.forEach\n * @module ng\n * @kind function\n *\n * @description\n * Invokes the `iterator` function once for each item in `obj` collection, which can be either an\n * object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value`\n * is the value of an object property or an array element, `key` is the object property key or\n * array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.\n *\n * It is worth noting that `.forEach` does not iterate over inherited properties because it filters\n * using the `hasOwnProperty` method.\n *\n * Unlike ES262's\n * [Array.prototype.forEach](http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.18),\n * providing 'undefined' or 'null' values for `obj` will not throw a TypeError, but rather just\n * return the value provided.\n *\n   ```js\n     var values = {name: 'misko', gender: 'male'};\n     var log = [];\n     angular.forEach(values, function(value, key) {\n       this.push(key + ': ' + value);\n     }, log);\n     expect(log).toEqual(['name: misko', 'gender: male']);\n   ```\n *\n * @param {Object|Array} obj Object to iterate over.\n * @param {Function} iterator Iterator function.\n * @param {Object=} context Object to become context (`this`) for the iterator function.\n * @returns {Object|Array} Reference to `obj`.\n */\n\nfunction forEach(obj, iterator, context) {\n  var key, length;\n  if (obj) {\n    if (isFunction(obj)) {\n      for (key in obj) {\n        if (key !== 'prototype' && key !== 'length' && key !== 'name' && obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (isArray(obj) || isArrayLike(obj)) {\n      var isPrimitive = typeof obj !== 'object';\n      for (key = 0, length = obj.length; key < length; key++) {\n        if (isPrimitive || key in obj) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (obj.forEach && obj.forEach !== forEach) {\n        obj.forEach(iterator, context, obj);\n    } else if (isBlankObject(obj)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in obj) {\n        iterator.call(context, obj[key], key, obj);\n      }\n    } else if (typeof obj.hasOwnProperty === 'function') {\n      // Slow path for objects inheriting Object.prototype, hasOwnProperty check needed\n      for (key in obj) {\n        if (obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else {\n      // Slow path for objects which do not have a method `hasOwnProperty`\n      for (key in obj) {\n        if (hasOwnProperty.call(obj, key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    }\n  }\n  return obj;\n}\n\nfunction forEachSorted(obj, iterator, context) {\n  var keys = Object.keys(obj).sort();\n  for (var i = 0; i < keys.length; i++) {\n    iterator.call(context, obj[keys[i]], keys[i]);\n  }\n  return keys;\n}\n\n\n/**\n * when using forEach the params are value, key, but it is often useful to have key, value.\n * @param {function(string, *)} iteratorFn\n * @returns {function(*, string)}\n */\nfunction reverseParams(iteratorFn) {\n  return function(value, key) {iteratorFn(key, value);};\n}\n\n/**\n * A consistent way of creating unique IDs in angular.\n *\n * Using simple numbers allows us to generate 28.6 million unique ids per second for 10 years before\n * we hit number precision issues in JavaScript.\n *\n * Math.pow(2,53) / 60 / 60 / 24 / 365 / 10 = 28.6M\n *\n * @returns {number} an unique alpha-numeric string\n */\nfunction nextUid() {\n  return ++uid;\n}\n\n\n/**\n * Set or clear the hashkey for an object.\n * @param obj object\n * @param h the hashkey (!truthy to delete the hashkey)\n */\nfunction setHashKey(obj, h) {\n  if (h) {\n    obj.$$hashKey = h;\n  } else {\n    delete obj.$$hashKey;\n  }\n}\n\n\nfunction baseExtend(dst, objs, deep) {\n  var h = dst.$$hashKey;\n\n  for (var i = 0, ii = objs.length; i < ii; ++i) {\n    var obj = objs[i];\n    if (!isObject(obj) && !isFunction(obj)) continue;\n    var keys = Object.keys(obj);\n    for (var j = 0, jj = keys.length; j < jj; j++) {\n      var key = keys[j];\n      var src = obj[key];\n\n      if (deep && isObject(src)) {\n        if (isDate(src)) {\n          dst[key] = new Date(src.valueOf());\n        } else if (isRegExp(src)) {\n          dst[key] = new RegExp(src);\n        } else if (src.nodeName) {\n          dst[key] = src.cloneNode(true);\n        } else if (isElement(src)) {\n          dst[key] = src.clone();\n        } else {\n          if (!isObject(dst[key])) dst[key] = isArray(src) ? [] : {};\n          baseExtend(dst[key], [src], true);\n        }\n      } else {\n        dst[key] = src;\n      }\n    }\n  }\n\n  setHashKey(dst, h);\n  return dst;\n}\n\n/**\n * @ngdoc function\n * @name angular.extend\n * @module ng\n * @kind function\n *\n * @description\n * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n * to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n * by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.\n *\n * **Note:** Keep in mind that `angular.extend` does not support recursive merge (deep copy). Use\n * {@link angular.merge} for this.\n *\n * @param {Object} dst Destination object.\n * @param {...Object} src Source object(s).\n * @returns {Object} Reference to `dst`.\n */\nfunction extend(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), false);\n}\n\n\n/**\n* @ngdoc function\n* @name angular.merge\n* @module ng\n* @kind function\n*\n* @description\n* Deeply extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n* to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n* by passing an empty object as the target: `var object = angular.merge({}, object1, object2)`.\n*\n* Unlike {@link angular.extend extend()}, `merge()` recursively descends into object properties of source\n* objects, performing a deep copy.\n*\n* @deprecated\n* sinceVersion=\"1.6.5\"\n* This function is deprecated, but will not be removed in the 1.x lifecycle.\n* There are edge cases (see {@link angular.merge#known-issues known issues}) that are not\n* supported by this function. We suggest\n* using [lodash's merge()](https://lodash.com/docs/4.17.4#merge) instead.\n*\n* @knownIssue\n* This is a list of (known) object types that are not handled correctly by this function:\n* - [`Blob`](https://developer.mozilla.org/docs/Web/API/Blob)\n* - [`MediaStream`](https://developer.mozilla.org/docs/Web/API/MediaStream)\n* - [`CanvasGradient`](https://developer.mozilla.org/docs/Web/API/CanvasGradient)\n* - AngularJS {@link $rootScope.Scope scopes};\n*\n* @param {Object} dst Destination object.\n* @param {...Object} src Source object(s).\n* @returns {Object} Reference to `dst`.\n*/\nfunction merge(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), true);\n}\n\n\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nvar isNumberNaN = Number.isNaN || function isNumberNaN(num) {\n  // eslint-disable-next-line no-self-compare\n  return num !== num;\n};\n\n\nfunction inherit(parent, extra) {\n  return extend(Object.create(parent), extra);\n}\n\n/**\n * @ngdoc function\n * @name angular.noop\n * @module ng\n * @kind function\n *\n * @description\n * A function that performs no operations. This function can be useful when writing code in the\n * functional style.\n   ```js\n     function foo(callback) {\n       var result = calculateResult();\n       (callback || angular.noop)(result);\n     }\n   ```\n */\nfunction noop() {}\nnoop.$inject = [];\n\n\n/**\n * @ngdoc function\n * @name angular.identity\n * @module ng\n * @kind function\n *\n * @description\n * A function that returns its first argument. This function is useful when writing code in the\n * functional style.\n *\n   ```js\n   function transformer(transformationFn, value) {\n     return (transformationFn || angular.identity)(value);\n   };\n\n   // E.g.\n   function getResult(fn, input) {\n     return (fn || angular.identity)(input);\n   };\n\n   getResult(function(n) { return n * 2; }, 21);   // returns 42\n   getResult(null, 21);                            // returns 21\n   getResult(undefined, 21);                       // returns 21\n   ```\n *\n * @param {*} value to be returned.\n * @returns {*} the value passed in.\n */\nfunction identity($) {return $;}\nidentity.$inject = [];\n\n\nfunction valueFn(value) {return function valueRef() {return value;};}\n\nfunction hasCustomToString(obj) {\n  return isFunction(obj.toString) && obj.toString !== toString;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isUndefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is undefined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is undefined.\n */\nfunction isUndefined(value) {return typeof value === 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is defined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is defined.\n */\nfunction isDefined(value) {return typeof value !== 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isObject\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not\n * considered to be objects. Note that JavaScript arrays are objects.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Object` but not `null`.\n */\nfunction isObject(value) {\n  // http://jsperf.com/isobject4\n  return value !== null && typeof value === 'object';\n}\n\n\n/**\n * Determine if a value is an object with a null prototype\n *\n * @returns {boolean} True if `value` is an `Object` with a null prototype\n */\nfunction isBlankObject(value) {\n  return value !== null && typeof value === 'object' && !getPrototypeOf(value);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isString\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `String`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `String`.\n */\nfunction isString(value) {return typeof value === 'string';}\n\n\n/**\n * @ngdoc function\n * @name angular.isNumber\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Number`.\n *\n * This includes the \"special\" numbers `NaN`, `+Infinity` and `-Infinity`.\n *\n * If you wish to exclude these then you can use the native\n * [`isFinite'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)\n * method.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Number`.\n */\nfunction isNumber(value) {return typeof value === 'number';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDate\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a value is a date.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Date`.\n */\nfunction isDate(value) {\n  return toString.call(value) === '[object Date]';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isArray\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Array`. Alias of Array.isArray.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Array`.\n */\nvar isArray = Array.isArray;\n\n/**\n * @description\n * Determines if a reference is an `Error`.\n * Loosely based on https://www.npmjs.com/package/iserror\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Error`.\n */\nfunction isError(value) {\n  var tag = toString.call(value);\n  switch (tag) {\n    case '[object Error]': return true;\n    case '[object Exception]': return true;\n    case '[object DOMException]': return true;\n    default: return value instanceof Error;\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.isFunction\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Function`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Function`.\n */\nfunction isFunction(value) {return typeof value === 'function';}\n\n\n/**\n * Determines if a value is a regular expression object.\n *\n * @private\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `RegExp`.\n */\nfunction isRegExp(value) {\n  return toString.call(value) === '[object RegExp]';\n}\n\n\n/**\n * Checks if `obj` is a window object.\n *\n * @private\n * @param {*} obj Object to check\n * @returns {boolean} True if `obj` is a window obj.\n */\nfunction isWindow(obj) {\n  return obj && obj.window === obj;\n}\n\n\nfunction isScope(obj) {\n  return obj && obj.$evalAsync && obj.$watch;\n}\n\n\nfunction isFile(obj) {\n  return toString.call(obj) === '[object File]';\n}\n\n\nfunction isFormData(obj) {\n  return toString.call(obj) === '[object FormData]';\n}\n\n\nfunction isBlob(obj) {\n  return toString.call(obj) === '[object Blob]';\n}\n\n\nfunction isBoolean(value) {\n  return typeof value === 'boolean';\n}\n\n\nfunction isPromiseLike(obj) {\n  return obj && isFunction(obj.then);\n}\n\n\nvar TYPED_ARRAY_REGEXP = /^\\[object (?:Uint8|Uint8Clamped|Uint16|Uint32|Int8|Int16|Int32|Float32|Float64)Array]$/;\nfunction isTypedArray(value) {\n  return value && isNumber(value.length) && TYPED_ARRAY_REGEXP.test(toString.call(value));\n}\n\nfunction isArrayBuffer(obj) {\n  return toString.call(obj) === '[object ArrayBuffer]';\n}\n\n\nvar trim = function(value) {\n  return isString(value) ? value.trim() : value;\n};\n\n// Copied from:\n// http://docs.closure-library.googlecode.com/git/local_closure_goog_string_string.js.source.html#line1021\n// Prereq: s is a string.\nvar escapeForRegexp = function(s) {\n  return s\n    .replace(/([-()[\\]{}+?*.$^|,:#<!\\\\])/g, '\\\\$1')\n    // eslint-disable-next-line no-control-regex\n    .replace(/\\x08/g, '\\\\x08');\n};\n\n\n/**\n * @ngdoc function\n * @name angular.isElement\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a DOM element (or wrapped jQuery element).\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).\n */\nfunction isElement(node) {\n  return !!(node &&\n    (node.nodeName  // We are a direct element.\n    || (node.prop && node.attr && node.find)));  // We have an on and find method part of jQuery API.\n}\n\n/**\n * @param str 'key1,key2,...'\n * @returns {object} in the form of {key1:true, key2:true, ...}\n */\nfunction makeMap(str) {\n  var obj = {}, items = str.split(','), i;\n  for (i = 0; i < items.length; i++) {\n    obj[items[i]] = true;\n  }\n  return obj;\n}\n\n\nfunction nodeName_(element) {\n  return lowercase(element.nodeName || (element[0] && element[0].nodeName));\n}\n\nfunction includes(array, obj) {\n  return Array.prototype.indexOf.call(array, obj) !== -1;\n}\n\nfunction arrayRemove(array, value) {\n  var index = array.indexOf(value);\n  if (index >= 0) {\n    array.splice(index, 1);\n  }\n  return index;\n}\n\n/**\n * @ngdoc function\n * @name angular.copy\n * @module ng\n * @kind function\n *\n * @description\n * Creates a deep copy of `source`, which should be an object or an array.\n *\n * * If no destination is supplied, a copy of the object or array is created.\n * * If a destination is provided, all of its elements (for arrays) or properties (for objects)\n *   are deleted and then all elements/properties from the source are copied to it.\n * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.\n * * If `source` is identical to `destination` an exception will be thrown.\n *\n * <br />\n * <div class=\"alert alert-warning\">\n *   Only enumerable properties are taken into account. Non-enumerable properties (both on `source`\n *   and on `destination`) will be ignored.\n * </div>\n *\n * @param {*} source The source that will be used to make a copy.\n *                   Can be any type, including primitives, `null`, and `undefined`.\n * @param {(Object|Array)=} destination Destination into which the source is copied. If\n *     provided, must be of the same type as `source`.\n * @returns {*} The copy or updated `destination`, if `destination` was specified.\n *\n * @example\n  <example module=\"copyExample\" name=\"angular-copy\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate class=\"simple-form\">\n          <label>Name: <input type=\"text\" ng-model=\"user.name\" /></label><br />\n          <label>Age:  <input type=\"number\" ng-model=\"user.age\" /></label><br />\n          Gender: <label><input type=\"radio\" ng-model=\"user.gender\" value=\"male\" />male</label>\n                  <label><input type=\"radio\" ng-model=\"user.gender\" value=\"female\" />female</label><br />\n          <button ng-click=\"reset()\">RESET</button>\n          <button ng-click=\"update(user)\">SAVE</button>\n        </form>\n        <pre>form = {{user | json}}</pre>\n        <pre>leader = {{leader | json}}</pre>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      // Module: copyExample\n      angular.\n        module('copyExample', []).\n        controller('ExampleController', ['$scope', function($scope) {\n          $scope.leader = {};\n\n          $scope.reset = function() {\n            // Example with 1 argument\n            $scope.user = angular.copy($scope.leader);\n          };\n\n          $scope.update = function(user) {\n            // Example with 2 arguments\n            angular.copy(user, $scope.leader);\n          };\n\n          $scope.reset();\n        }]);\n    </file>\n  </example>\n */\nfunction copy(source, destination, maxDepth) {\n  var stackSource = [];\n  var stackDest = [];\n  maxDepth = isValidObjectMaxDepth(maxDepth) ? maxDepth : NaN;\n\n  if (destination) {\n    if (isTypedArray(destination) || isArrayBuffer(destination)) {\n      throw ngMinErr('cpta', 'Can\\'t copy! TypedArray destination cannot be mutated.');\n    }\n    if (source === destination) {\n      throw ngMinErr('cpi', 'Can\\'t copy! Source and destination are identical.');\n    }\n\n    // Empty the destination object\n    if (isArray(destination)) {\n      destination.length = 0;\n    } else {\n      forEach(destination, function(value, key) {\n        if (key !== '$$hashKey') {\n          delete destination[key];\n        }\n      });\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n    return copyRecurse(source, destination, maxDepth);\n  }\n\n  return copyElement(source, maxDepth);\n\n  function copyRecurse(source, destination, maxDepth) {\n    maxDepth--;\n    if (maxDepth < 0) {\n      return '...';\n    }\n    var h = destination.$$hashKey;\n    var key;\n    if (isArray(source)) {\n      for (var i = 0, ii = source.length; i < ii; i++) {\n        destination.push(copyElement(source[i], maxDepth));\n      }\n    } else if (isBlankObject(source)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in source) {\n        destination[key] = copyElement(source[key], maxDepth);\n      }\n    } else if (source && typeof source.hasOwnProperty === 'function') {\n      // Slow path, which must rely on hasOwnProperty\n      for (key in source) {\n        if (source.hasOwnProperty(key)) {\n          destination[key] = copyElement(source[key], maxDepth);\n        }\n      }\n    } else {\n      // Slowest path --- hasOwnProperty can't be called as a method\n      for (key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          destination[key] = copyElement(source[key], maxDepth);\n        }\n      }\n    }\n    setHashKey(destination, h);\n    return destination;\n  }\n\n  function copyElement(source, maxDepth) {\n    // Simple values\n    if (!isObject(source)) {\n      return source;\n    }\n\n    // Already copied values\n    var index = stackSource.indexOf(source);\n    if (index !== -1) {\n      return stackDest[index];\n    }\n\n    if (isWindow(source) || isScope(source)) {\n      throw ngMinErr('cpws',\n        'Can\\'t copy! Making copies of Window or Scope instances is not supported.');\n    }\n\n    var needsRecurse = false;\n    var destination = copyType(source);\n\n    if (destination === undefined) {\n      destination = isArray(source) ? [] : Object.create(getPrototypeOf(source));\n      needsRecurse = true;\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n\n    return needsRecurse\n      ? copyRecurse(source, destination, maxDepth)\n      : destination;\n  }\n\n  function copyType(source) {\n    switch (toString.call(source)) {\n      case '[object Int8Array]':\n      case '[object Int16Array]':\n      case '[object Int32Array]':\n      case '[object Float32Array]':\n      case '[object Float64Array]':\n      case '[object Uint8Array]':\n      case '[object Uint8ClampedArray]':\n      case '[object Uint16Array]':\n      case '[object Uint32Array]':\n        return new source.constructor(copyElement(source.buffer), source.byteOffset, source.length);\n\n      case '[object ArrayBuffer]':\n        // Support: IE10\n        if (!source.slice) {\n          // If we're in this case we know the environment supports ArrayBuffer\n          /* eslint-disable no-undef */\n          var copied = new ArrayBuffer(source.byteLength);\n          new Uint8Array(copied).set(new Uint8Array(source));\n          /* eslint-enable */\n          return copied;\n        }\n        return source.slice(0);\n\n      case '[object Boolean]':\n      case '[object Number]':\n      case '[object String]':\n      case '[object Date]':\n        return new source.constructor(source.valueOf());\n\n      case '[object RegExp]':\n        var re = new RegExp(source.source, source.toString().match(/[^/]*$/)[0]);\n        re.lastIndex = source.lastIndex;\n        return re;\n\n      case '[object Blob]':\n        return new source.constructor([source], {type: source.type});\n    }\n\n    if (isFunction(source.cloneNode)) {\n      return source.cloneNode(true);\n    }\n  }\n}\n\n\n// eslint-disable-next-line no-self-compare\nfunction simpleCompare(a, b) { return a === b || (a !== a && b !== b); }\n\n\n/**\n * @ngdoc function\n * @name angular.equals\n * @module ng\n * @kind function\n *\n * @description\n * Determines if two objects or two values are equivalent. Supports value types, regular\n * expressions, arrays and objects.\n *\n * Two objects or values are considered equivalent if at least one of the following is true:\n *\n * * Both objects or values pass `===` comparison.\n * * Both objects or values are of the same type and all of their properties are equal by\n *   comparing them with `angular.equals`.\n * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)\n * * Both values represent the same regular expression (In JavaScript,\n *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual\n *   representation matches).\n *\n * During a property comparison, properties of `function` type and properties with names\n * that begin with `$` are ignored.\n *\n * Scope and DOMWindow objects are being compared only by identify (`===`).\n *\n * @param {*} o1 Object or value to compare.\n * @param {*} o2 Object or value to compare.\n * @returns {boolean} True if arguments are equal.\n *\n * @example\n   <example module=\"equalsExample\" name=\"equalsExample\">\n     <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate>\n          <h3>User 1</h3>\n          Name: <input type=\"text\" ng-model=\"user1.name\">\n          Age: <input type=\"number\" ng-model=\"user1.age\">\n\n          <h3>User 2</h3>\n          Name: <input type=\"text\" ng-model=\"user2.name\">\n          Age: <input type=\"number\" ng-model=\"user2.age\">\n\n          <div>\n            <br/>\n            <input type=\"button\" value=\"Compare\" ng-click=\"compare()\">\n          </div>\n          User 1: <pre>{{user1 | json}}</pre>\n          User 2: <pre>{{user2 | json}}</pre>\n          Equal: <pre>{{result}}</pre>\n        </form>\n      </div>\n    </file>\n    <file name=\"script.js\">\n        angular.module('equalsExample', []).controller('ExampleController', ['$scope', function($scope) {\n          $scope.user1 = {};\n          $scope.user2 = {};\n          $scope.compare = function() {\n            $scope.result = angular.equals($scope.user1, $scope.user2);\n          };\n        }]);\n    </file>\n  </example>\n */\nfunction equals(o1, o2) {\n  if (o1 === o2) return true;\n  if (o1 === null || o2 === null) return false;\n  // eslint-disable-next-line no-self-compare\n  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN\n  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;\n  if (t1 === t2 && t1 === 'object') {\n    if (isArray(o1)) {\n      if (!isArray(o2)) return false;\n      if ((length = o1.length) === o2.length) {\n        for (key = 0; key < length; key++) {\n          if (!equals(o1[key], o2[key])) return false;\n        }\n        return true;\n      }\n    } else if (isDate(o1)) {\n      if (!isDate(o2)) return false;\n      return simpleCompare(o1.getTime(), o2.getTime());\n    } else if (isRegExp(o1)) {\n      if (!isRegExp(o2)) return false;\n      return o1.toString() === o2.toString();\n    } else {\n      if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) ||\n        isArray(o2) || isDate(o2) || isRegExp(o2)) return false;\n      keySet = createMap();\n      for (key in o1) {\n        if (key.charAt(0) === '$' || isFunction(o1[key])) continue;\n        if (!equals(o1[key], o2[key])) return false;\n        keySet[key] = true;\n      }\n      for (key in o2) {\n        if (!(key in keySet) &&\n            key.charAt(0) !== '$' &&\n            isDefined(o2[key]) &&\n            !isFunction(o2[key])) return false;\n      }\n      return true;\n    }\n  }\n  return false;\n}\n\nvar csp = function() {\n  if (!isDefined(csp.rules)) {\n\n\n    var ngCspElement = (window.document.querySelector('[ng-csp]') ||\n                    window.document.querySelector('[data-ng-csp]'));\n\n    if (ngCspElement) {\n      var ngCspAttribute = ngCspElement.getAttribute('ng-csp') ||\n                    ngCspElement.getAttribute('data-ng-csp');\n      csp.rules = {\n        noUnsafeEval: !ngCspAttribute || (ngCspAttribute.indexOf('no-unsafe-eval') !== -1),\n        noInlineStyle: !ngCspAttribute || (ngCspAttribute.indexOf('no-inline-style') !== -1)\n      };\n    } else {\n      csp.rules = {\n        noUnsafeEval: noUnsafeEval(),\n        noInlineStyle: false\n      };\n    }\n  }\n\n  return csp.rules;\n\n  function noUnsafeEval() {\n    try {\n      // eslint-disable-next-line no-new, no-new-func\n      new Function('');\n      return false;\n    } catch (e) {\n      return true;\n    }\n  }\n};\n\n/**\n * @ngdoc directive\n * @module ng\n * @name ngJq\n *\n * @element ANY\n * @param {string=} ngJq the name of the library available under `window`\n * to be used for angular.element\n * @description\n * Use this directive to force the angular.element library.  This should be\n * used to force either jqLite by leaving ng-jq blank or setting the name of\n * the jquery variable under window (eg. jQuery).\n *\n * Since AngularJS looks for this directive when it is loaded (doesn't wait for the\n * DOMContentLoaded event), it must be placed on an element that comes before the script\n * which loads angular. Also, only the first instance of `ng-jq` will be used and all\n * others ignored.\n *\n * @example\n * This example shows how to force jqLite using the `ngJq` directive to the `html` tag.\n ```html\n <!doctype html>\n <html ng-app ng-jq>\n ...\n ...\n </html>\n ```\n * @example\n * This example shows how to use a jQuery based library of a different name.\n * The library name must be available at the top most 'window'.\n ```html\n <!doctype html>\n <html ng-app ng-jq=\"jQueryLib\">\n ...\n ...\n </html>\n ```\n */\nvar jq = function() {\n  if (isDefined(jq.name_)) return jq.name_;\n  var el;\n  var i, ii = ngAttrPrefixes.length, prefix, name;\n  for (i = 0; i < ii; ++i) {\n    prefix = ngAttrPrefixes[i];\n    el = window.document.querySelector('[' + prefix.replace(':', '\\\\:') + 'jq]');\n    if (el) {\n      name = el.getAttribute(prefix + 'jq');\n      break;\n    }\n  }\n\n  return (jq.name_ = name);\n};\n\nfunction concat(array1, array2, index) {\n  return array1.concat(slice.call(array2, index));\n}\n\nfunction sliceArgs(args, startIndex) {\n  return slice.call(args, startIndex || 0);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.bind\n * @module ng\n * @kind function\n *\n * @description\n * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for\n * `fn`). You can supply optional `args` that are prebound to the function. This feature is also\n * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as\n * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).\n *\n * @param {Object} self Context which `fn` should be evaluated in.\n * @param {function()} fn Function to be bound.\n * @param {...*} args Optional arguments to be prebound to the `fn` function call.\n * @returns {function()} Function that wraps the `fn` with all the specified bindings.\n */\nfunction bind(self, fn) {\n  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];\n  if (isFunction(fn) && !(fn instanceof RegExp)) {\n    return curryArgs.length\n      ? function() {\n          return arguments.length\n            ? fn.apply(self, concat(curryArgs, arguments, 0))\n            : fn.apply(self, curryArgs);\n        }\n      : function() {\n          return arguments.length\n            ? fn.apply(self, arguments)\n            : fn.call(self);\n        };\n  } else {\n    // In IE, native methods are not functions so they cannot be bound (note: they don't need to be).\n    return fn;\n  }\n}\n\n\nfunction toJsonReplacer(key, value) {\n  var val = value;\n\n  if (typeof key === 'string' && key.charAt(0) === '$' && key.charAt(1) === '$') {\n    val = undefined;\n  } else if (isWindow(value)) {\n    val = '$WINDOW';\n  } else if (value &&  window.document === value) {\n    val = '$DOCUMENT';\n  } else if (isScope(value)) {\n    val = '$SCOPE';\n  }\n\n  return val;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.toJson\n * @module ng\n * @kind function\n *\n * @description\n * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be\n * stripped since AngularJS uses this notation internally.\n *\n * @param {Object|Array|Date|string|number|boolean} obj Input to be serialized into JSON.\n * @param {boolean|number} [pretty=2] If set to true, the JSON output will contain newlines and whitespace.\n *    If set to an integer, the JSON output will contain that many spaces per indentation.\n * @returns {string|undefined} JSON-ified string representing `obj`.\n * @knownIssue\n *\n * The Safari browser throws a `RangeError` instead of returning `null` when it tries to stringify a `Date`\n * object with an invalid date value. The only reliable way to prevent this is to monkeypatch the\n * `Date.prototype.toJSON` method as follows:\n *\n * ```\n * var _DatetoJSON = Date.prototype.toJSON;\n * Date.prototype.toJSON = function() {\n *   try {\n *     return _DatetoJSON.call(this);\n *   } catch(e) {\n *     if (e instanceof RangeError) {\n *       return null;\n *     }\n *     throw e;\n *   }\n * };\n * ```\n *\n * See https://github.com/angular/angular.js/pull/14221 for more information.\n */\nfunction toJson(obj, pretty) {\n  if (isUndefined(obj)) return undefined;\n  if (!isNumber(pretty)) {\n    pretty = pretty ? 2 : null;\n  }\n  return JSON.stringify(obj, toJsonReplacer, pretty);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.fromJson\n * @module ng\n * @kind function\n *\n * @description\n * Deserializes a JSON string.\n *\n * @param {string} json JSON string to deserialize.\n * @returns {Object|Array|string|number} Deserialized JSON string.\n */\nfunction fromJson(json) {\n  return isString(json)\n      ? JSON.parse(json)\n      : json;\n}\n\n\nvar ALL_COLONS = /:/g;\nfunction timezoneToOffset(timezone, fallback) {\n  // Support: IE 9-11 only, Edge 13-15+\n  // IE/Edge do not \"understand\" colon (`:`) in timezone\n  timezone = timezone.replace(ALL_COLONS, '');\n  var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n  return isNumberNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\n\n\nfunction addDateMinutes(date, minutes) {\n  date = new Date(date.getTime());\n  date.setMinutes(date.getMinutes() + minutes);\n  return date;\n}\n\n\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n  reverse = reverse ? -1 : 1;\n  var dateTimezoneOffset = date.getTimezoneOffset();\n  var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n  return addDateMinutes(date, reverse * (timezoneOffset - dateTimezoneOffset));\n}\n\n\n/**\n * @returns {string} Returns the string representation of the element.\n */\nfunction startingTag(element) {\n  element = jqLite(element).clone().empty();\n  var elemHtml = jqLite('<div></div>').append(element).html();\n  try {\n    return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :\n        elemHtml.\n          match(/^(<[^>]+>)/)[1].\n          replace(/^<([\\w-]+)/, function(match, nodeName) {return '<' + lowercase(nodeName);});\n  } catch (e) {\n    return lowercase(elemHtml);\n  }\n\n}\n\n\n/////////////////////////////////////////////////\n\n/**\n * Tries to decode the URI component without throwing an exception.\n *\n * @private\n * @param str value potential URI component to check.\n * @returns {boolean} True if `value` can be decoded\n * with the decodeURIComponent function.\n */\nfunction tryDecodeURIComponent(value) {\n  try {\n    return decodeURIComponent(value);\n  } catch (e) {\n    // Ignore any invalid uri component.\n  }\n}\n\n\n/**\n * Parses an escaped url query string into key-value pairs.\n * @returns {Object.<string,boolean|Array>}\n */\nfunction parseKeyValue(/**string*/keyValue) {\n  var obj = {};\n  forEach((keyValue || '').split('&'), function(keyValue) {\n    var splitPoint, key, val;\n    if (keyValue) {\n      key = keyValue = keyValue.replace(/\\+/g,'%20');\n      splitPoint = keyValue.indexOf('=');\n      if (splitPoint !== -1) {\n        key = keyValue.substring(0, splitPoint);\n        val = keyValue.substring(splitPoint + 1);\n      }\n      key = tryDecodeURIComponent(key);\n      if (isDefined(key)) {\n        val = isDefined(val) ? tryDecodeURIComponent(val) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if (isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key],val];\n        }\n      }\n    }\n  });\n  return obj;\n}\n\nfunction toKeyValue(obj) {\n  var parts = [];\n  forEach(obj, function(value, key) {\n    if (isArray(value)) {\n      forEach(value, function(arrayValue) {\n        parts.push(encodeUriQuery(key, true) +\n                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));\n      });\n    } else {\n    parts.push(encodeUriQuery(key, true) +\n               (value === true ? '' : '=' + encodeUriQuery(value, true)));\n    }\n  });\n  return parts.length ? parts.join('&') : '';\n}\n\n\n/**\n * We need our custom method because encodeURIComponent is too aggressive and doesn't follow\n * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path\n * segments:\n *    segment       = *pchar\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriSegment(val) {\n  return encodeUriQuery(val, true).\n             replace(/%26/gi, '&').\n             replace(/%3D/gi, '=').\n             replace(/%2B/gi, '+');\n}\n\n\n/**\n * This method is intended for encoding *key* or *value* parts of query component. We need a custom\n * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be\n * encoded per http://tools.ietf.org/html/rfc3986:\n *    query         = *( pchar / \"/\" / \"?\" )\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriQuery(val, pctEncodeSpaces) {\n  return encodeURIComponent(val).\n             replace(/%40/gi, '@').\n             replace(/%3A/gi, ':').\n             replace(/%24/g, '$').\n             replace(/%2C/gi, ',').\n             replace(/%3B/gi, ';').\n             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));\n}\n\nvar ngAttrPrefixes = ['ng-', 'data-ng-', 'ng:', 'x-ng-'];\n\nfunction getNgAttribute(element, ngAttr) {\n  var attr, i, ii = ngAttrPrefixes.length;\n  for (i = 0; i < ii; ++i) {\n    attr = ngAttrPrefixes[i] + ngAttr;\n    if (isString(attr = element.getAttribute(attr))) {\n      return attr;\n    }\n  }\n  return null;\n}\n\nfunction allowAutoBootstrap(document) {\n  var script = document.currentScript;\n\n  if (!script) {\n    // Support: IE 9-11 only\n    // IE does not have `document.currentScript`\n    return true;\n  }\n\n  // If the `currentScript` property has been clobbered just return false, since this indicates a probable attack\n  if (!(script instanceof window.HTMLScriptElement || script instanceof window.SVGScriptElement)) {\n    return false;\n  }\n\n  var attributes = script.attributes;\n  var srcs = [attributes.getNamedItem('src'), attributes.getNamedItem('href'), attributes.getNamedItem('xlink:href')];\n\n  return srcs.every(function(src) {\n    if (!src) {\n      return true;\n    }\n    if (!src.value) {\n      return false;\n    }\n\n    var link = document.createElement('a');\n    link.href = src.value;\n\n    if (document.location.origin === link.origin) {\n      // Same-origin resources are always allowed, even for non-whitelisted schemes.\n      return true;\n    }\n    // Disabled bootstrapping unless angular.js was loaded from a known scheme used on the web.\n    // This is to prevent angular.js bundled with browser extensions from being used to bypass the\n    // content security policy in web pages and other browser extensions.\n    switch (link.protocol) {\n      case 'http:':\n      case 'https:':\n      case 'ftp:':\n      case 'blob:':\n      case 'file:':\n      case 'data:':\n        return true;\n      default:\n        return false;\n    }\n  });\n}\n\n// Cached as it has to run during loading so that document.currentScript is available.\nvar isAutoBootstrapAllowed = allowAutoBootstrap(window.document);\n\n/**\n * @ngdoc directive\n * @name ngApp\n * @module ng\n *\n * @element ANY\n * @param {angular.Module} ngApp an optional application\n *   {@link angular.module module} name to load.\n * @param {boolean=} ngStrictDi if this attribute is present on the app element, the injector will be\n *   created in \"strict-di\" mode. This means that the application will fail to invoke functions which\n *   do not use explicit function annotation (and are thus unsuitable for minification), as described\n *   in {@link guide/di the Dependency Injection guide}, and useful debugging info will assist in\n *   tracking down the root of these bugs.\n *\n * @description\n *\n * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive\n * designates the **root element** of the application and is typically placed near the root element\n * of the page - e.g. on the `<body>` or `<html>` tags.\n *\n * There are a few things to keep in mind when using `ngApp`:\n * - only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`\n *   found in the document will be used to define the root element to auto-bootstrap as an\n *   application. To run multiple applications in an HTML document you must manually bootstrap them using\n *   {@link angular.bootstrap} instead.\n * - AngularJS applications cannot be nested within each other.\n * - Do not use a directive that uses {@link ng.$compile#transclusion transclusion} on the same element as `ngApp`.\n *   This includes directives such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and\n *   {@link ngRoute.ngView `ngView`}.\n *   Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n *   causing animations to stop working and making the injector inaccessible from outside the app.\n *\n * You can specify an **AngularJS module** to be used as the root module for the application.  This\n * module will be loaded into the {@link auto.$injector} when the application is bootstrapped. It\n * should contain the application code needed or have dependencies on other modules that will\n * contain the code. See {@link angular.module} for more information.\n *\n * In the example below if the `ngApp` directive were not placed on the `html` element then the\n * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`\n * would not be resolved to `3`.\n *\n * @example\n *\n * ### Simple Usage\n *\n * `ngApp` is the easiest, and most common way to bootstrap an application.\n *\n <example module=\"ngAppDemo\" name=\"ng-app\">\n   <file name=\"index.html\">\n   <div ng-controller=\"ngAppDemoController\">\n     I can add: {{a}} + {{b}} =  {{ a+b }}\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {\n     $scope.a = 1;\n     $scope.b = 2;\n   });\n   </file>\n </example>\n *\n * @example\n *\n * ### With `ngStrictDi`\n *\n * Using `ngStrictDi`, you would see something like this:\n *\n <example ng-app-included=\"true\" name=\"strict-di\">\n   <file name=\"index.html\">\n   <div ng-app=\"ngAppStrictDemo\" ng-strict-di>\n       <div ng-controller=\"GoodController1\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style (see\n              script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"GoodController2\">\n           Name: <input ng-model=\"name\"><br />\n           Hello, {{name}}!\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style\n              (see script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"BadController\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>The controller could not be instantiated, due to relying\n              on automatic function annotations (which are disabled in\n              strict mode). As such, the content of this section is not\n              interpolated, and there should be an error in your web console.\n           </p>\n       </div>\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppStrictDemo', [])\n     // BadController will fail to instantiate, due to relying on automatic function annotation,\n     // rather than an explicit annotation\n     .controller('BadController', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     })\n     // Unlike BadController, GoodController1 and GoodController2 will not fail to be instantiated,\n     // due to using explicit annotations using the array style and $inject property, respectively.\n     .controller('GoodController1', ['$scope', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     }])\n     .controller('GoodController2', GoodController2);\n     function GoodController2($scope) {\n       $scope.name = 'World';\n     }\n     GoodController2.$inject = ['$scope'];\n   </file>\n   <file name=\"style.css\">\n   div[ng-controller] {\n       margin-bottom: 1em;\n       -webkit-border-radius: 4px;\n       border-radius: 4px;\n       border: 1px solid;\n       padding: .5em;\n   }\n   div[ng-controller^=Good] {\n       border-color: #d6e9c6;\n       background-color: #dff0d8;\n       color: #3c763d;\n   }\n   div[ng-controller^=Bad] {\n       border-color: #ebccd1;\n       background-color: #f2dede;\n       color: #a94442;\n       margin-bottom: 0;\n   }\n   </file>\n </example>\n */\nfunction angularInit(element, bootstrap) {\n  var appElement,\n      module,\n      config = {};\n\n  // The element `element` has priority over any other element.\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n\n    if (!appElement && element.hasAttribute && element.hasAttribute(name)) {\n      appElement = element;\n      module = element.getAttribute(name);\n    }\n  });\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n    var candidate;\n\n    if (!appElement && (candidate = element.querySelector('[' + name.replace(':', '\\\\:') + ']'))) {\n      appElement = candidate;\n      module = candidate.getAttribute(name);\n    }\n  });\n  if (appElement) {\n    if (!isAutoBootstrapAllowed) {\n      window.console.error('AngularJS: disabling automatic bootstrap. <script> protocol indicates ' +\n          'an extension, document.location.href does not match.');\n      return;\n    }\n    config.strictDi = getNgAttribute(appElement, 'strict-di') !== null;\n    bootstrap(appElement, module ? [module] : [], config);\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.bootstrap\n * @module ng\n * @description\n * Use this function to manually start up AngularJS application.\n *\n * For more information, see the {@link guide/bootstrap Bootstrap guide}.\n *\n * AngularJS will detect if it has been loaded into the browser more than once and only allow the\n * first loaded script to be bootstrapped and will report a warning to the browser console for\n * each of the subsequent scripts. This prevents strange results in applications, where otherwise\n * multiple instances of AngularJS try to work on the DOM.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Protractor based end-to-end tests cannot use this function to bootstrap manually.\n * They must use {@link ng.directive:ngApp ngApp}.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Do not bootstrap the app on an element with a directive that uses {@link ng.$compile#transclusion transclusion},\n * such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and {@link ngRoute.ngView `ngView`}.\n * Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n * causing animations to stop working and making the injector inaccessible from outside the app.\n * </div>\n *\n * ```html\n * <!doctype html>\n * <html>\n * <body>\n * <div ng-controller=\"WelcomeController\">\n *   {{greeting}}\n * </div>\n *\n * <script src=\"angular.js\"></script>\n * <script>\n *   var app = angular.module('demo', [])\n *   .controller('WelcomeController', function($scope) {\n *       $scope.greeting = 'Welcome!';\n *   });\n *   angular.bootstrap(document, ['demo']);\n * </script>\n * </body>\n * </html>\n * ```\n *\n * @param {DOMElement} element DOM element which is the root of AngularJS application.\n * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n * @param {Object=} config an object for defining configuration options for the application. The\n *     following keys are supported:\n *\n * * `strictDi` - disable automatic function annotation for the application. This is meant to\n *   assist in finding bugs which break minified code. Defaults to `false`.\n *\n * @returns {auto.$injector} Returns the newly created injector for this app.\n */\nfunction bootstrap(element, modules, config) {\n  if (!isObject(config)) config = {};\n  var defaultConfig = {\n    strictDi: false\n  };\n  config = extend(defaultConfig, config);\n  var doBootstrap = function() {\n    element = jqLite(element);\n\n    if (element.injector()) {\n      var tag = (element[0] === window.document) ? 'document' : startingTag(element);\n      // Encode angle brackets to prevent input from being sanitized to empty string #8683.\n      throw ngMinErr(\n          'btstrpd',\n          'App already bootstrapped with this element \\'{0}\\'',\n          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));\n    }\n\n    modules = modules || [];\n    modules.unshift(['$provide', function($provide) {\n      $provide.value('$rootElement', element);\n    }]);\n\n    if (config.debugInfoEnabled) {\n      // Pushing so that this overrides `debugInfoEnabled` setting defined in user's `modules`.\n      modules.push(['$compileProvider', function($compileProvider) {\n        $compileProvider.debugInfoEnabled(true);\n      }]);\n    }\n\n    modules.unshift('ng');\n    var injector = createInjector(modules, config.strictDi);\n    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector',\n       function bootstrapApply(scope, element, compile, injector) {\n        scope.$apply(function() {\n          element.data('$injector', injector);\n          compile(element)(scope);\n        });\n      }]\n    );\n    return injector;\n  };\n\n  var NG_ENABLE_DEBUG_INFO = /^NG_ENABLE_DEBUG_INFO!/;\n  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;\n\n  if (window && NG_ENABLE_DEBUG_INFO.test(window.name)) {\n    config.debugInfoEnabled = true;\n    window.name = window.name.replace(NG_ENABLE_DEBUG_INFO, '');\n  }\n\n  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {\n    return doBootstrap();\n  }\n\n  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');\n  angular.resumeBootstrap = function(extraModules) {\n    forEach(extraModules, function(module) {\n      modules.push(module);\n    });\n    return doBootstrap();\n  };\n\n  if (isFunction(angular.resumeDeferredBootstrap)) {\n    angular.resumeDeferredBootstrap();\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.reloadWithDebugInfo\n * @module ng\n * @description\n * Use this function to reload the current application with debug information turned on.\n * This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.\n *\n * See {@link ng.$compileProvider#debugInfoEnabled} for more.\n */\nfunction reloadWithDebugInfo() {\n  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;\n  window.location.reload();\n}\n\n/**\n * @name angular.getTestability\n * @module ng\n * @description\n * Get the testability service for the instance of AngularJS on the given\n * element.\n * @param {DOMElement} element DOM element which is the root of AngularJS application.\n */\nfunction getTestability(rootElement) {\n  var injector = angular.element(rootElement).injector();\n  if (!injector) {\n    throw ngMinErr('test',\n      'no injector found for element argument to getTestability');\n  }\n  return injector.get('$$testability');\n}\n\nvar SNAKE_CASE_REGEXP = /[A-Z]/g;\nfunction snake_case(name, separator) {\n  separator = separator || '_';\n  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n    return (pos ? separator : '') + letter.toLowerCase();\n  });\n}\n\nvar bindJQueryFired = false;\nfunction bindJQuery() {\n  var originalCleanData;\n\n  if (bindJQueryFired) {\n    return;\n  }\n\n  // bind to jQuery if present;\n  var jqName = jq();\n  jQuery = isUndefined(jqName) ? window.jQuery :   // use jQuery (if present)\n           !jqName             ? undefined     :   // use jqLite\n                                 window[jqName];   // use jQuery specified by `ngJq`\n\n  // Use jQuery if it exists with proper functionality, otherwise default to us.\n  // AngularJS 1.2+ requires jQuery 1.7+ for on()/off() support.\n  // AngularJS 1.3+ technically requires at least jQuery 2.1+ but it may work with older\n  // versions. It will not work for sure with jQuery <1.7, though.\n  if (jQuery && jQuery.fn.on) {\n    jqLite = jQuery;\n    extend(jQuery.fn, {\n      scope: JQLitePrototype.scope,\n      isolateScope: JQLitePrototype.isolateScope,\n      controller: /** @type {?} */ (JQLitePrototype).controller,\n      injector: JQLitePrototype.injector,\n      inheritedData: JQLitePrototype.inheritedData\n    });\n\n    // All nodes removed from the DOM via various jQuery APIs like .remove()\n    // are passed through jQuery.cleanData. Monkey-patch this method to fire\n    // the $destroy event on all removed nodes.\n    originalCleanData = jQuery.cleanData;\n    jQuery.cleanData = function(elems) {\n      var events;\n      for (var i = 0, elem; (elem = elems[i]) != null; i++) {\n        events = jQuery._data(elem, 'events');\n        if (events && events.$destroy) {\n          jQuery(elem).triggerHandler('$destroy');\n        }\n      }\n      originalCleanData(elems);\n    };\n  } else {\n    jqLite = JQLite;\n  }\n\n  angular.element = jqLite;\n\n  // Prevent double-proxying.\n  bindJQueryFired = true;\n}\n\n/**\n * throw error if the argument is falsy.\n */\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction assertArgFn(arg, name, acceptArrayAnnotation) {\n  if (acceptArrayAnnotation && isArray(arg)) {\n      arg = arg[arg.length - 1];\n  }\n\n  assertArg(isFunction(arg), name, 'not a function, got ' +\n      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));\n  return arg;\n}\n\n/**\n * throw error if the name given is hasOwnProperty\n * @param  {String} name    the name to test\n * @param  {String} context the context in which the name is used, such as module or directive\n */\nfunction assertNotHasOwnProperty(name, context) {\n  if (name === 'hasOwnProperty') {\n    throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n  }\n}\n\n/**\n * Return the value accessible from the object by path. Any undefined traversals are ignored\n * @param {Object} obj starting object\n * @param {String} path path to traverse\n * @param {boolean} [bindFnToScope=true]\n * @returns {Object} value as accessible by path\n */\n//TODO(misko): this function needs to be removed\nfunction getter(obj, path, bindFnToScope) {\n  if (!path) return obj;\n  var keys = path.split('.');\n  var key;\n  var lastInstance = obj;\n  var len = keys.length;\n\n  for (var i = 0; i < len; i++) {\n    key = keys[i];\n    if (obj) {\n      obj = (lastInstance = obj)[key];\n    }\n  }\n  if (!bindFnToScope && isFunction(obj)) {\n    return bind(lastInstance, obj);\n  }\n  return obj;\n}\n\n/**\n * Return the DOM siblings between the first and last node in the given array.\n * @param {Array} array like object\n * @returns {Array} the inputted object or a jqLite collection containing the nodes\n */\nfunction getBlockNodes(nodes) {\n  // TODO(perf): update `nodes` instead of creating a new object?\n  var node = nodes[0];\n  var endNode = nodes[nodes.length - 1];\n  var blockNodes;\n\n  for (var i = 1; node !== endNode && (node = node.nextSibling); i++) {\n    if (blockNodes || nodes[i] !== node) {\n      if (!blockNodes) {\n        blockNodes = jqLite(slice.call(nodes, 0, i));\n      }\n      blockNodes.push(node);\n    }\n  }\n\n  return blockNodes || nodes;\n}\n\n\n/**\n * Creates a new object without a prototype. This object is useful for lookup without having to\n * guard against prototypically inherited properties via hasOwnProperty.\n *\n * Related micro-benchmarks:\n * - http://jsperf.com/object-create2\n * - http://jsperf.com/proto-map-lookup/2\n * - http://jsperf.com/for-in-vs-object-keys2\n *\n * @returns {Object}\n */\nfunction createMap() {\n  return Object.create(null);\n}\n\nfunction stringify(value) {\n  if (value == null) { // null || undefined\n    return '';\n  }\n  switch (typeof value) {\n    case 'string':\n      break;\n    case 'number':\n      value = '' + value;\n      break;\n    default:\n      if (hasCustomToString(value) && !isArray(value) && !isDate(value)) {\n        value = value.toString();\n      } else {\n        value = toJson(value);\n      }\n  }\n\n  return value;\n}\n\nvar NODE_TYPE_ELEMENT = 1;\nvar NODE_TYPE_ATTRIBUTE = 2;\nvar NODE_TYPE_TEXT = 3;\nvar NODE_TYPE_COMMENT = 8;\nvar NODE_TYPE_DOCUMENT = 9;\nvar NODE_TYPE_DOCUMENT_FRAGMENT = 11;\n\n/**\n * @ngdoc type\n * @name angular.Module\n * @module ng\n * @description\n *\n * Interface for configuring AngularJS {@link angular.module modules}.\n */\n\nfunction setupModuleLoader(window) {\n\n  var $injectorMinErr = minErr('$injector');\n  var ngMinErr = minErr('ng');\n\n  function ensure(obj, name, factory) {\n    return obj[name] || (obj[name] = factory());\n  }\n\n  var angular = ensure(window, 'angular', Object);\n\n  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap\n  angular.$$minErr = angular.$$minErr || minErr;\n\n  return ensure(angular, 'module', function() {\n    /** @type {Object.<string, angular.Module>} */\n    var modules = {};\n\n    /**\n     * @ngdoc function\n     * @name angular.module\n     * @module ng\n     * @description\n     *\n     * The `angular.module` is a global place for creating, registering and retrieving AngularJS\n     * modules.\n     * All modules (AngularJS core or 3rd party) that should be available to an application must be\n     * registered using this mechanism.\n     *\n     * Passing one argument retrieves an existing {@link angular.Module},\n     * whereas passing more than one argument creates a new {@link angular.Module}\n     *\n     *\n     * # Module\n     *\n     * A module is a collection of services, directives, controllers, filters, and configuration information.\n     * `angular.module` is used to configure the {@link auto.$injector $injector}.\n     *\n     * ```js\n     * // Create a new module\n     * var myModule = angular.module('myModule', []);\n     *\n     * // register a new service\n     * myModule.value('appName', 'MyCoolApp');\n     *\n     * // configure existing services inside initialization blocks.\n     * myModule.config(['$locationProvider', function($locationProvider) {\n     *   // Configure existing providers\n     *   $locationProvider.hashPrefix('!');\n     * }]);\n     * ```\n     *\n     * Then you can create an injector and load your modules like this:\n     *\n     * ```js\n     * var injector = angular.injector(['ng', 'myModule'])\n     * ```\n     *\n     * However it's more likely that you'll just use\n     * {@link ng.directive:ngApp ngApp} or\n     * {@link angular.bootstrap} to simplify this process for you.\n     *\n     * @param {!string} name The name of the module to create or retrieve.\n     * @param {!Array.<string>=} requires If specified then new module is being created. If\n     *        unspecified then the module is being retrieved for further configuration.\n     * @param {Function=} configFn Optional configuration function for the module. Same as\n     *        {@link angular.Module#config Module#config()}.\n     * @returns {angular.Module} new module with the {@link angular.Module} api.\n     */\n    return function module(name, requires, configFn) {\n\n      var info = {};\n\n      var assertNotHasOwnProperty = function(name, context) {\n        if (name === 'hasOwnProperty') {\n          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n        }\n      };\n\n      assertNotHasOwnProperty(name, 'module');\n      if (requires && modules.hasOwnProperty(name)) {\n        modules[name] = null;\n      }\n      return ensure(modules, name, function() {\n        if (!requires) {\n          throw $injectorMinErr('nomod', 'Module \\'{0}\\' is not available! You either misspelled ' +\n             'the module name or forgot to load it. If registering a module ensure that you ' +\n             'specify the dependencies as the second argument.', name);\n        }\n\n        /** @type {!Array.<Array.<*>>} */\n        var invokeQueue = [];\n\n        /** @type {!Array.<Function>} */\n        var configBlocks = [];\n\n        /** @type {!Array.<Function>} */\n        var runBlocks = [];\n\n        var config = invokeLater('$injector', 'invoke', 'push', configBlocks);\n\n        /** @type {angular.Module} */\n        var moduleInstance = {\n          // Private state\n          _invokeQueue: invokeQueue,\n          _configBlocks: configBlocks,\n          _runBlocks: runBlocks,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#info\n           * @module ng\n           *\n           * @param {Object=} info Information about the module\n           * @returns {Object|Module} The current info object for this module if called as a getter,\n           *                          or `this` if called as a setter.\n           *\n           * @description\n           * Read and write custom information about this module.\n           * For example you could put the version of the module in here.\n           *\n           * ```js\n           * angular.module('myModule', []).info({ version: '1.0.0' });\n           * ```\n           *\n           * The version could then be read back out by accessing the module elsewhere:\n           *\n           * ```\n           * var version = angular.module('myModule').info().version;\n           * ```\n           *\n           * You can also retrieve this information during runtime via the\n           * {@link $injector#modules `$injector.modules`} property:\n           *\n           * ```js\n           * var version = $injector.modules['myModule'].info().version;\n           * ```\n           */\n          info: function(value) {\n            if (isDefined(value)) {\n              if (!isObject(value)) throw ngMinErr('aobj', 'Argument \\'{0}\\' must be an object', 'value');\n              info = value;\n              return this;\n            }\n            return info;\n          },\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#requires\n           * @module ng\n           *\n           * @description\n           * Holds the list of modules which the injector will load before the current module is\n           * loaded.\n           */\n          requires: requires,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#name\n           * @module ng\n           *\n           * @description\n           * Name of the module.\n           */\n          name: name,\n\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#provider\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerType Construction function for creating new instance of the\n           *                                service.\n           * @description\n           * See {@link auto.$provide#provider $provide.provider()}.\n           */\n          provider: invokeLaterAndSetModuleName('$provide', 'provider'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#factory\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerFunction Function for creating new instance of the service.\n           * @description\n           * See {@link auto.$provide#factory $provide.factory()}.\n           */\n          factory: invokeLaterAndSetModuleName('$provide', 'factory'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#service\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} constructor A constructor function that will be instantiated.\n           * @description\n           * See {@link auto.$provide#service $provide.service()}.\n           */\n          service: invokeLaterAndSetModuleName('$provide', 'service'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#value\n           * @module ng\n           * @param {string} name service name\n           * @param {*} object Service instance object.\n           * @description\n           * See {@link auto.$provide#value $provide.value()}.\n           */\n          value: invokeLater('$provide', 'value'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#constant\n           * @module ng\n           * @param {string} name constant name\n           * @param {*} object Constant value.\n           * @description\n           * Because the constants are fixed, they get applied before other provide methods.\n           * See {@link auto.$provide#constant $provide.constant()}.\n           */\n          constant: invokeLater('$provide', 'constant', 'unshift'),\n\n           /**\n           * @ngdoc method\n           * @name angular.Module#decorator\n           * @module ng\n           * @param {string} name The name of the service to decorate.\n           * @param {Function} decorFn This function will be invoked when the service needs to be\n           *                           instantiated and should return the decorated service instance.\n           * @description\n           * See {@link auto.$provide#decorator $provide.decorator()}.\n           */\n          decorator: invokeLaterAndSetModuleName('$provide', 'decorator', configBlocks),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#animation\n           * @module ng\n           * @param {string} name animation name\n           * @param {Function} animationFactory Factory function for creating new instance of an\n           *                                    animation.\n           * @description\n           *\n           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.\n           *\n           *\n           * Defines an animation hook that can be later used with\n           * {@link $animate $animate} service and directives that use this service.\n           *\n           * ```js\n           * module.animation('.animation-name', function($inject1, $inject2) {\n           *   return {\n           *     eventName : function(element, done) {\n           *       //code to run the animation\n           *       //once complete, then run done()\n           *       return function cancellationFunction(element) {\n           *         //code to cancel the animation\n           *       }\n           *     }\n           *   }\n           * })\n           * ```\n           *\n           * See {@link ng.$animateProvider#register $animateProvider.register()} and\n           * {@link ngAnimate ngAnimate module} for more information.\n           */\n          animation: invokeLaterAndSetModuleName('$animateProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#filter\n           * @module ng\n           * @param {string} name Filter name - this must be a valid AngularJS expression identifier\n           * @param {Function} filterFactory Factory function for creating new instance of filter.\n           * @description\n           * See {@link ng.$filterProvider#register $filterProvider.register()}.\n           *\n           * <div class=\"alert alert-warning\">\n           * **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n           * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n           * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n           * (`myapp_subsection_filterx`).\n           * </div>\n           */\n          filter: invokeLaterAndSetModuleName('$filterProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#controller\n           * @module ng\n           * @param {string|Object} name Controller name, or an object map of controllers where the\n           *    keys are the names and the values are the constructors.\n           * @param {Function} constructor Controller constructor function.\n           * @description\n           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.\n           */\n          controller: invokeLaterAndSetModuleName('$controllerProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#directive\n           * @module ng\n           * @param {string|Object} name Directive name, or an object map of directives where the\n           *    keys are the names and the values are the factories.\n           * @param {Function} directiveFactory Factory function for creating new instance of\n           * directives.\n           * @description\n           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.\n           */\n          directive: invokeLaterAndSetModuleName('$compileProvider', 'directive'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#component\n           * @module ng\n           * @param {string} name Name of the component in camel-case (i.e. myComp which will match as my-comp)\n           * @param {Object} options Component definition object (a simplified\n           *    {@link ng.$compile#directive-definition-object directive definition object})\n           *\n           * @description\n           * See {@link ng.$compileProvider#component $compileProvider.component()}.\n           */\n          component: invokeLaterAndSetModuleName('$compileProvider', 'component'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#config\n           * @module ng\n           * @param {Function} configFn Execute this function on module load. Useful for service\n           *    configuration.\n           * @description\n           * Use this method to configure services by injecting their\n           * {@link angular.Module#provider `providers`}, e.g. for adding routes to the\n           * {@link ngRoute.$routeProvider $routeProvider}.\n           *\n           * Note that you can only inject {@link angular.Module#provider `providers`} and\n           * {@link angular.Module#constant `constants`} into this function.\n           *\n           * For more about how to configure services, see\n           * {@link providers#provider-recipe Provider Recipe}.\n           */\n          config: config,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#run\n           * @module ng\n           * @param {Function} initializationFn Execute this function after injector creation.\n           *    Useful for application initialization.\n           * @description\n           * Use this method to register work which should be performed when the injector is done\n           * loading all modules.\n           */\n          run: function(block) {\n            runBlocks.push(block);\n            return this;\n          }\n        };\n\n        if (configFn) {\n          config(configFn);\n        }\n\n        return moduleInstance;\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @param {String=} insertMethod\n         * @returns {angular.Module}\n         */\n        function invokeLater(provider, method, insertMethod, queue) {\n          if (!queue) queue = invokeQueue;\n          return function() {\n            queue[insertMethod || 'push']([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @returns {angular.Module}\n         */\n        function invokeLaterAndSetModuleName(provider, method, queue) {\n          if (!queue) queue = invokeQueue;\n          return function(recipeName, factoryFunction) {\n            if (factoryFunction && isFunction(factoryFunction)) factoryFunction.$$moduleName = name;\n            queue.push([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n      });\n    };\n  });\n\n}\n\n/* global shallowCopy: true */\n\n/**\n * Creates a shallow copy of an object, an array or a primitive.\n *\n * Assumes that there are no proto properties for objects.\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for (var i = 0, ii = src.length; i < ii; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n/* exported toDebugString */\n\nfunction serializeObject(obj, maxDepth) {\n  var seen = [];\n\n  // There is no direct way to stringify object until reaching a specific depth\n  // and a very deep object can cause a performance issue, so we copy the object\n  // based on this specific depth and then stringify it.\n  if (isValidObjectMaxDepth(maxDepth)) {\n    // This file is also included in `angular-loader`, so `copy()` might not always be available in\n    // the closure. Therefore, it is lazily retrieved as `angular.copy()` when needed.\n    obj = angular.copy(obj, null, maxDepth);\n  }\n  return JSON.stringify(obj, function(key, val) {\n    val = toJsonReplacer(key, val);\n    if (isObject(val)) {\n\n      if (seen.indexOf(val) >= 0) return '...';\n\n      seen.push(val);\n    }\n    return val;\n  });\n}\n\nfunction toDebugString(obj, maxDepth) {\n  if (typeof obj === 'function') {\n    return obj.toString().replace(/ \\{[\\s\\S]*$/, '');\n  } else if (isUndefined(obj)) {\n    return 'undefined';\n  } else if (typeof obj !== 'string') {\n    return serializeObject(obj, maxDepth);\n  }\n  return obj;\n}\n\n/* global angularModule: true,\n  version: true,\n\n  $CompileProvider,\n\n  htmlAnchorDirective,\n  inputDirective,\n  inputDirective,\n  formDirective,\n  scriptDirective,\n  selectDirective,\n  optionDirective,\n  ngBindDirective,\n  ngBindHtmlDirective,\n  ngBindTemplateDirective,\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective,\n  ngCloakDirective,\n  ngControllerDirective,\n  ngFormDirective,\n  ngHideDirective,\n  ngIfDirective,\n  ngIncludeDirective,\n  ngIncludeFillContentDirective,\n  ngInitDirective,\n  ngNonBindableDirective,\n  ngPluralizeDirective,\n  ngRepeatDirective,\n  ngShowDirective,\n  ngStyleDirective,\n  ngSwitchDirective,\n  ngSwitchWhenDirective,\n  ngSwitchDefaultDirective,\n  ngOptionsDirective,\n  ngTranscludeDirective,\n  ngModelDirective,\n  ngListDirective,\n  ngChangeDirective,\n  patternDirective,\n  patternDirective,\n  requiredDirective,\n  requiredDirective,\n  minlengthDirective,\n  minlengthDirective,\n  maxlengthDirective,\n  maxlengthDirective,\n  ngValueDirective,\n  ngModelOptionsDirective,\n  ngAttributeAliasDirectives,\n  ngEventDirectives,\n\n  $AnchorScrollProvider,\n  $AnimateProvider,\n  $CoreAnimateCssProvider,\n  $$CoreAnimateJsProvider,\n  $$CoreAnimateQueueProvider,\n  $$AnimateRunnerFactoryProvider,\n  $$AnimateAsyncRunFactoryProvider,\n  $BrowserProvider,\n  $CacheFactoryProvider,\n  $ControllerProvider,\n  $DateProvider,\n  $DocumentProvider,\n  $$IsDocumentHiddenProvider,\n  $ExceptionHandlerProvider,\n  $FilterProvider,\n  $$ForceReflowProvider,\n  $InterpolateProvider,\n  $IntervalProvider,\n  $HttpProvider,\n  $HttpParamSerializerProvider,\n  $HttpParamSerializerJQLikeProvider,\n  $HttpBackendProvider,\n  $xhrFactoryProvider,\n  $jsonpCallbacksProvider,\n  $LocationProvider,\n  $LogProvider,\n  $$MapProvider,\n  $ParseProvider,\n  $RootScopeProvider,\n  $QProvider,\n  $$QProvider,\n  $$SanitizeUriProvider,\n  $SceProvider,\n  $SceDelegateProvider,\n  $SnifferProvider,\n  $TemplateCacheProvider,\n  $TemplateRequestProvider,\n  $$TestabilityProvider,\n  $TimeoutProvider,\n  $$RAFProvider,\n  $WindowProvider,\n  $$jqLiteProvider,\n  $$CookieReaderProvider\n*/\n\n\n/**\n * @ngdoc object\n * @name angular.version\n * @module ng\n * @description\n * An object that contains information about the current AngularJS version.\n *\n * This object has the following properties:\n *\n * - `full` – `{string}` – Full version string, such as \"0.9.18\".\n * - `major` – `{number}` – Major version number, such as \"0\".\n * - `minor` – `{number}` – Minor version number, such as \"9\".\n * - `dot` – `{number}` – Dot version number, such as \"18\".\n * - `codeName` – `{string}` – Code name of the release, such as \"jiggling-armfat\".\n */\nvar version = {\n  // These placeholder strings will be replaced by grunt's `build` task.\n  // They need to be double- or single-quoted.\n  full: '1.6.10',\n  major: 1,\n  minor: 6,\n  dot: 10,\n  codeName: 'crystalline-persuasion'\n};\n\n\nfunction publishExternalAPI(angular) {\n  extend(angular, {\n    'errorHandlingConfig': errorHandlingConfig,\n    'bootstrap': bootstrap,\n    'copy': copy,\n    'extend': extend,\n    'merge': merge,\n    'equals': equals,\n    'element': jqLite,\n    'forEach': forEach,\n    'injector': createInjector,\n    'noop': noop,\n    'bind': bind,\n    'toJson': toJson,\n    'fromJson': fromJson,\n    'identity': identity,\n    'isUndefined': isUndefined,\n    'isDefined': isDefined,\n    'isString': isString,\n    'isFunction': isFunction,\n    'isObject': isObject,\n    'isNumber': isNumber,\n    'isElement': isElement,\n    'isArray': isArray,\n    'version': version,\n    'isDate': isDate,\n    'lowercase': lowercase,\n    'uppercase': uppercase,\n    'callbacks': {$$counter: 0},\n    'getTestability': getTestability,\n    'reloadWithDebugInfo': reloadWithDebugInfo,\n    '$$minErr': minErr,\n    '$$csp': csp,\n    '$$encodeUriSegment': encodeUriSegment,\n    '$$encodeUriQuery': encodeUriQuery,\n    '$$stringify': stringify\n  });\n\n  angularModule = setupModuleLoader(window);\n\n  angularModule('ng', ['ngLocale'], ['$provide',\n    function ngModule($provide) {\n      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.\n      $provide.provider({\n        $$sanitizeUri: $$SanitizeUriProvider\n      });\n      $provide.provider('$compile', $CompileProvider).\n        directive({\n            a: htmlAnchorDirective,\n            input: inputDirective,\n            textarea: inputDirective,\n            form: formDirective,\n            script: scriptDirective,\n            select: selectDirective,\n            option: optionDirective,\n            ngBind: ngBindDirective,\n            ngBindHtml: ngBindHtmlDirective,\n            ngBindTemplate: ngBindTemplateDirective,\n            ngClass: ngClassDirective,\n            ngClassEven: ngClassEvenDirective,\n            ngClassOdd: ngClassOddDirective,\n            ngCloak: ngCloakDirective,\n            ngController: ngControllerDirective,\n            ngForm: ngFormDirective,\n            ngHide: ngHideDirective,\n            ngIf: ngIfDirective,\n            ngInclude: ngIncludeDirective,\n            ngInit: ngInitDirective,\n            ngNonBindable: ngNonBindableDirective,\n            ngPluralize: ngPluralizeDirective,\n            ngRepeat: ngRepeatDirective,\n            ngShow: ngShowDirective,\n            ngStyle: ngStyleDirective,\n            ngSwitch: ngSwitchDirective,\n            ngSwitchWhen: ngSwitchWhenDirective,\n            ngSwitchDefault: ngSwitchDefaultDirective,\n            ngOptions: ngOptionsDirective,\n            ngTransclude: ngTranscludeDirective,\n            ngModel: ngModelDirective,\n            ngList: ngListDirective,\n            ngChange: ngChangeDirective,\n            pattern: patternDirective,\n            ngPattern: patternDirective,\n            required: requiredDirective,\n            ngRequired: requiredDirective,\n            minlength: minlengthDirective,\n            ngMinlength: minlengthDirective,\n            maxlength: maxlengthDirective,\n            ngMaxlength: maxlengthDirective,\n            ngValue: ngValueDirective,\n            ngModelOptions: ngModelOptionsDirective\n        }).\n        directive({\n          ngInclude: ngIncludeFillContentDirective\n        }).\n        directive(ngAttributeAliasDirectives).\n        directive(ngEventDirectives);\n      $provide.provider({\n        $anchorScroll: $AnchorScrollProvider,\n        $animate: $AnimateProvider,\n        $animateCss: $CoreAnimateCssProvider,\n        $$animateJs: $$CoreAnimateJsProvider,\n        $$animateQueue: $$CoreAnimateQueueProvider,\n        $$AnimateRunner: $$AnimateRunnerFactoryProvider,\n        $$animateAsyncRun: $$AnimateAsyncRunFactoryProvider,\n        $browser: $BrowserProvider,\n        $cacheFactory: $CacheFactoryProvider,\n        $controller: $ControllerProvider,\n        $document: $DocumentProvider,\n        $$isDocumentHidden: $$IsDocumentHiddenProvider,\n        $exceptionHandler: $ExceptionHandlerProvider,\n        $filter: $FilterProvider,\n        $$forceReflow: $$ForceReflowProvider,\n        $interpolate: $InterpolateProvider,\n        $interval: $IntervalProvider,\n        $http: $HttpProvider,\n        $httpParamSerializer: $HttpParamSerializerProvider,\n        $httpParamSerializerJQLike: $HttpParamSerializerJQLikeProvider,\n        $httpBackend: $HttpBackendProvider,\n        $xhrFactory: $xhrFactoryProvider,\n        $jsonpCallbacks: $jsonpCallbacksProvider,\n        $location: $LocationProvider,\n        $log: $LogProvider,\n        $parse: $ParseProvider,\n        $rootScope: $RootScopeProvider,\n        $q: $QProvider,\n        $$q: $$QProvider,\n        $sce: $SceProvider,\n        $sceDelegate: $SceDelegateProvider,\n        $sniffer: $SnifferProvider,\n        $templateCache: $TemplateCacheProvider,\n        $templateRequest: $TemplateRequestProvider,\n        $$testability: $$TestabilityProvider,\n        $timeout: $TimeoutProvider,\n        $window: $WindowProvider,\n        $$rAF: $$RAFProvider,\n        $$jqLite: $$jqLiteProvider,\n        $$Map: $$MapProvider,\n        $$cookieReader: $$CookieReaderProvider\n      });\n    }\n  ])\n  .info({ angularVersion: '1.6.10' });\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* global\n  JQLitePrototype: true,\n  BOOLEAN_ATTR: true,\n  ALIASED_ATTR: true\n*/\n\n//////////////////////////////////\n//JQLite\n//////////////////////////////////\n\n/**\n * @ngdoc function\n * @name angular.element\n * @module ng\n * @kind function\n *\n * @description\n * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.\n *\n * If jQuery is available, `angular.element` is an alias for the\n * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`\n * delegates to AngularJS's built-in subset of jQuery, called \"jQuery lite\" or **jqLite**.\n *\n * jqLite is a tiny, API-compatible subset of jQuery that allows\n * AngularJS to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most\n * commonly needed functionality with the goal of having a very small footprint.\n *\n * To use `jQuery`, simply ensure it is loaded before the `angular.js` file. You can also use the\n * {@link ngJq `ngJq`} directive to specify that jqlite should be used over jQuery, or to use a\n * specific version of jQuery if multiple versions exist on the page.\n *\n * <div class=\"alert alert-info\">**Note:** All element references in AngularJS are always wrapped with jQuery or\n * jqLite (such as the element argument in a directive's compile / link function). They are never raw DOM references.</div>\n *\n * <div class=\"alert alert-warning\">**Note:** Keep in mind that this function will not find elements\n * by tag name / CSS selector. For lookups by tag name, try instead `angular.element(document).find(...)`\n * or `$document.find()`, or use the standard DOM APIs, e.g. `document.querySelectorAll()`.</div>\n *\n * ## AngularJS's jqLite\n * jqLite provides only the following jQuery methods:\n *\n * - [`addClass()`](http://api.jquery.com/addClass/) - Does not support a function as first argument\n * - [`after()`](http://api.jquery.com/after/)\n * - [`append()`](http://api.jquery.com/append/) - Contrary to jQuery, this doesn't clone elements\n *   so will not work correctly when invoked on a jqLite object containing more than one DOM node\n * - [`attr()`](http://api.jquery.com/attr/) - Does not support functions as parameters\n * - [`bind()`](http://api.jquery.com/bind/) (_deprecated_, use [`on()`](http://api.jquery.com/on/)) - Does not support namespaces, selectors or eventData\n * - [`children()`](http://api.jquery.com/children/) - Does not support selectors\n * - [`clone()`](http://api.jquery.com/clone/)\n * - [`contents()`](http://api.jquery.com/contents/)\n * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`.\n *   As a setter, does not convert numbers to strings or append 'px', and also does not have automatic property prefixing.\n * - [`data()`](http://api.jquery.com/data/)\n * - [`detach()`](http://api.jquery.com/detach/)\n * - [`empty()`](http://api.jquery.com/empty/)\n * - [`eq()`](http://api.jquery.com/eq/)\n * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name\n * - [`hasClass()`](http://api.jquery.com/hasClass/)\n * - [`html()`](http://api.jquery.com/html/)\n * - [`next()`](http://api.jquery.com/next/) - Does not support selectors\n * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData\n * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces, selectors or event object as parameter\n * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors\n * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors\n * - [`prepend()`](http://api.jquery.com/prepend/)\n * - [`prop()`](http://api.jquery.com/prop/)\n * - [`ready()`](http://api.jquery.com/ready/) (_deprecated_, use `angular.element(callback)` instead of `angular.element(document).ready(callback)`)\n * - [`remove()`](http://api.jquery.com/remove/)\n * - [`removeAttr()`](http://api.jquery.com/removeAttr/) - Does not support multiple attributes\n * - [`removeClass()`](http://api.jquery.com/removeClass/) - Does not support a function as first argument\n * - [`removeData()`](http://api.jquery.com/removeData/)\n * - [`replaceWith()`](http://api.jquery.com/replaceWith/)\n * - [`text()`](http://api.jquery.com/text/)\n * - [`toggleClass()`](http://api.jquery.com/toggleClass/) - Does not support a function as first argument\n * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers\n * - [`unbind()`](http://api.jquery.com/unbind/) (_deprecated_, use [`off()`](http://api.jquery.com/off/)) - Does not support namespaces or event object as parameter\n * - [`val()`](http://api.jquery.com/val/)\n * - [`wrap()`](http://api.jquery.com/wrap/)\n *\n * ## jQuery/jqLite Extras\n * AngularJS also provides the following additional methods and events to both jQuery and jqLite:\n *\n * ### Events\n * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event\n *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM\n *    element before it is removed.\n *\n * ### Methods\n * - `controller(name)` - retrieves the controller of the current element or its parent. By default\n *   retrieves controller associated with the `ngController` directive. If `name` is provided as\n *   camelCase directive name, then the controller for this directive will be retrieved (e.g.\n *   `'ngModel'`).\n * - `injector()` - retrieves the injector of the current element or its parent.\n * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current\n *   element or its parent. Requires {@link guide/production#disabling-debug-data Debug Data} to\n *   be enabled.\n * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the\n *   current element. This getter should be used only on elements that contain a directive which starts a new isolate\n *   scope. Calling `scope()` on this element always returns the original non-isolate scope.\n *   Requires {@link guide/production#disabling-debug-data Debug Data} to be enabled.\n * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top\n *   parent element is reached.\n *\n * @knownIssue You cannot spy on `angular.element` if you are using Jasmine version 1.x. See\n * https://github.com/angular/angular.js/issues/14251 for more information.\n *\n * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.\n * @returns {Object} jQuery object.\n */\n\nJQLite.expando = 'ng339';\n\nvar jqCache = JQLite.cache = {},\n    jqId = 1;\n\n/*\n * !!! This is an undocumented \"private\" function !!!\n */\nJQLite._data = function(node) {\n  //jQuery always returns an object on cache miss\n  return this.cache[node[this.expando]] || {};\n};\n\nfunction jqNextId() { return ++jqId; }\n\n\nvar DASH_LOWERCASE_REGEXP = /-([a-z])/g;\nvar MS_HACK_REGEXP = /^-ms-/;\nvar MOUSE_EVENT_MAP = { mouseleave: 'mouseout', mouseenter: 'mouseover' };\nvar jqLiteMinErr = minErr('jqLite');\n\n/**\n * Converts kebab-case to camelCase.\n * There is also a special case for the ms prefix starting with a lowercase letter.\n * @param name Name to normalize\n */\nfunction cssKebabToCamel(name) {\n    return kebabToCamel(name.replace(MS_HACK_REGEXP, 'ms-'));\n}\n\nfunction fnCamelCaseReplace(all, letter) {\n  return letter.toUpperCase();\n}\n\n/**\n * Converts kebab-case to camelCase.\n * @param name Name to normalize\n */\nfunction kebabToCamel(name) {\n  return name\n    .replace(DASH_LOWERCASE_REGEXP, fnCamelCaseReplace);\n}\n\nvar SINGLE_TAG_REGEXP = /^<([\\w-]+)\\s*\\/?>(?:<\\/\\1>|)$/;\nvar HTML_REGEXP = /<|&#?\\w+;/;\nvar TAG_NAME_REGEXP = /<([\\w:-]+)/;\nvar XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:-]+)[^>]*)\\/>/gi;\n\nvar wrapMap = {\n  'option': [1, '<select multiple=\"multiple\">', '</select>'],\n\n  'thead': [1, '<table>', '</table>'],\n  'col': [2, '<table><colgroup>', '</colgroup></table>'],\n  'tr': [2, '<table><tbody>', '</tbody></table>'],\n  'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],\n  '_default': [0, '', '']\n};\n\nwrapMap.optgroup = wrapMap.option;\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\n\nfunction jqLiteIsTextNode(html) {\n  return !HTML_REGEXP.test(html);\n}\n\nfunction jqLiteAcceptsData(node) {\n  // The window object can accept data but has no nodeType\n  // Otherwise we are only interested in elements (1) and documents (9)\n  var nodeType = node.nodeType;\n  return nodeType === NODE_TYPE_ELEMENT || !nodeType || nodeType === NODE_TYPE_DOCUMENT;\n}\n\nfunction jqLiteHasData(node) {\n  for (var key in jqCache[node.ng339]) {\n    return true;\n  }\n  return false;\n}\n\nfunction jqLiteBuildFragment(html, context) {\n  var tmp, tag, wrap,\n      fragment = context.createDocumentFragment(),\n      nodes = [], i;\n\n  if (jqLiteIsTextNode(html)) {\n    // Convert non-html into a text node\n    nodes.push(context.createTextNode(html));\n  } else {\n    // Convert html into DOM nodes\n    tmp = fragment.appendChild(context.createElement('div'));\n    tag = (TAG_NAME_REGEXP.exec(html) || ['', ''])[1].toLowerCase();\n    wrap = wrapMap[tag] || wrapMap._default;\n    tmp.innerHTML = wrap[1] + html.replace(XHTML_TAG_REGEXP, '<$1></$2>') + wrap[2];\n\n    // Descend through wrappers to the right content\n    i = wrap[0];\n    while (i--) {\n      tmp = tmp.lastChild;\n    }\n\n    nodes = concat(nodes, tmp.childNodes);\n\n    tmp = fragment.firstChild;\n    tmp.textContent = '';\n  }\n\n  // Remove wrapper from fragment\n  fragment.textContent = '';\n  fragment.innerHTML = ''; // Clear inner HTML\n  forEach(nodes, function(node) {\n    fragment.appendChild(node);\n  });\n\n  return fragment;\n}\n\nfunction jqLiteParseHTML(html, context) {\n  context = context || window.document;\n  var parsed;\n\n  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {\n    return [context.createElement(parsed[1])];\n  }\n\n  if ((parsed = jqLiteBuildFragment(html, context))) {\n    return parsed.childNodes;\n  }\n\n  return [];\n}\n\nfunction jqLiteWrapNode(node, wrapper) {\n  var parent = node.parentNode;\n\n  if (parent) {\n    parent.replaceChild(wrapper, node);\n  }\n\n  wrapper.appendChild(node);\n}\n\n\n// IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\nvar jqLiteContains = window.Node.prototype.contains || /** @this */ function(arg) {\n  // eslint-disable-next-line no-bitwise\n  return !!(this.compareDocumentPosition(arg) & 16);\n};\n\n/////////////////////////////////////////////\nfunction JQLite(element) {\n  if (element instanceof JQLite) {\n    return element;\n  }\n\n  var argIsString;\n\n  if (isString(element)) {\n    element = trim(element);\n    argIsString = true;\n  }\n  if (!(this instanceof JQLite)) {\n    if (argIsString && element.charAt(0) !== '<') {\n      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');\n    }\n    return new JQLite(element);\n  }\n\n  if (argIsString) {\n    jqLiteAddNodes(this, jqLiteParseHTML(element));\n  } else if (isFunction(element)) {\n    jqLiteReady(element);\n  } else {\n    jqLiteAddNodes(this, element);\n  }\n}\n\nfunction jqLiteClone(element) {\n  return element.cloneNode(true);\n}\n\nfunction jqLiteDealoc(element, onlyDescendants) {\n  if (!onlyDescendants && jqLiteAcceptsData(element)) jqLite.cleanData([element]);\n\n  if (element.querySelectorAll) {\n    jqLite.cleanData(element.querySelectorAll('*'));\n  }\n}\n\nfunction jqLiteOff(element, type, fn, unsupported) {\n  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');\n\n  var expandoStore = jqLiteExpandoStore(element);\n  var events = expandoStore && expandoStore.events;\n  var handle = expandoStore && expandoStore.handle;\n\n  if (!handle) return; //no listeners registered\n\n  if (!type) {\n    for (type in events) {\n      if (type !== '$destroy') {\n        element.removeEventListener(type, handle);\n      }\n      delete events[type];\n    }\n  } else {\n\n    var removeHandler = function(type) {\n      var listenerFns = events[type];\n      if (isDefined(fn)) {\n        arrayRemove(listenerFns || [], fn);\n      }\n      if (!(isDefined(fn) && listenerFns && listenerFns.length > 0)) {\n        element.removeEventListener(type, handle);\n        delete events[type];\n      }\n    };\n\n    forEach(type.split(' '), function(type) {\n      removeHandler(type);\n      if (MOUSE_EVENT_MAP[type]) {\n        removeHandler(MOUSE_EVENT_MAP[type]);\n      }\n    });\n  }\n}\n\nfunction jqLiteRemoveData(element, name) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  if (expandoStore) {\n    if (name) {\n      delete expandoStore.data[name];\n      return;\n    }\n\n    if (expandoStore.handle) {\n      if (expandoStore.events.$destroy) {\n        expandoStore.handle({}, '$destroy');\n      }\n      jqLiteOff(element);\n    }\n    delete jqCache[expandoId];\n    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it\n  }\n}\n\n\nfunction jqLiteExpandoStore(element, createIfNecessary) {\n  var expandoId = element.ng339,\n      expandoStore = expandoId && jqCache[expandoId];\n\n  if (createIfNecessary && !expandoStore) {\n    element.ng339 = expandoId = jqNextId();\n    expandoStore = jqCache[expandoId] = {events: {}, data: {}, handle: undefined};\n  }\n\n  return expandoStore;\n}\n\n\nfunction jqLiteData(element, key, value) {\n  if (jqLiteAcceptsData(element)) {\n    var prop;\n\n    var isSimpleSetter = isDefined(value);\n    var isSimpleGetter = !isSimpleSetter && key && !isObject(key);\n    var massGetter = !key;\n    var expandoStore = jqLiteExpandoStore(element, !isSimpleGetter);\n    var data = expandoStore && expandoStore.data;\n\n    if (isSimpleSetter) { // data('key', value)\n      data[kebabToCamel(key)] = value;\n    } else {\n      if (massGetter) {  // data()\n        return data;\n      } else {\n        if (isSimpleGetter) { // data('key')\n          // don't force creation of expandoStore if it doesn't exist yet\n          return data && data[kebabToCamel(key)];\n        } else { // mass-setter: data({key1: val1, key2: val2})\n          for (prop in key) {\n            data[kebabToCamel(prop)] = key[prop];\n          }\n        }\n      }\n    }\n  }\n}\n\nfunction jqLiteHasClass(element, selector) {\n  if (!element.getAttribute) return false;\n  return ((' ' + (element.getAttribute('class') || '') + ' ').replace(/[\\n\\t]/g, ' ').\n      indexOf(' ' + selector + ' ') > -1);\n}\n\nfunction jqLiteRemoveClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, ' ');\n    var newClasses = existingClasses;\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      newClasses = newClasses.replace(' ' + cssClass + ' ', ' ');\n    });\n\n    if (newClasses !== existingClasses) {\n      element.setAttribute('class', trim(newClasses));\n    }\n  }\n}\n\nfunction jqLiteAddClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, ' ');\n    var newClasses = existingClasses;\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      if (newClasses.indexOf(' ' + cssClass + ' ') === -1) {\n        newClasses += cssClass + ' ';\n      }\n    });\n\n    if (newClasses !== existingClasses) {\n      element.setAttribute('class', trim(newClasses));\n    }\n  }\n}\n\n\nfunction jqLiteAddNodes(root, elements) {\n  // THIS CODE IS VERY HOT. Don't make changes without benchmarking.\n\n  if (elements) {\n\n    // if a Node (the most common case)\n    if (elements.nodeType) {\n      root[root.length++] = elements;\n    } else {\n      var length = elements.length;\n\n      // if an Array or NodeList and not a Window\n      if (typeof length === 'number' && elements.window !== elements) {\n        if (length) {\n          for (var i = 0; i < length; i++) {\n            root[root.length++] = elements[i];\n          }\n        }\n      } else {\n        root[root.length++] = elements;\n      }\n    }\n  }\n}\n\n\nfunction jqLiteController(element, name) {\n  return jqLiteInheritedData(element, '$' + (name || 'ngController') + 'Controller');\n}\n\nfunction jqLiteInheritedData(element, name, value) {\n  // if element is the document object work with the html element instead\n  // this makes $(document).scope() possible\n  if (element.nodeType === NODE_TYPE_DOCUMENT) {\n    element = element.documentElement;\n  }\n  var names = isArray(name) ? name : [name];\n\n  while (element) {\n    for (var i = 0, ii = names.length; i < ii; i++) {\n      if (isDefined(value = jqLite.data(element, names[i]))) return value;\n    }\n\n    // If dealing with a document fragment node with a host element, and no parent, use the host\n    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM\n    // to lookup parent controllers.\n    element = element.parentNode || (element.nodeType === NODE_TYPE_DOCUMENT_FRAGMENT && element.host);\n  }\n}\n\nfunction jqLiteEmpty(element) {\n  jqLiteDealoc(element, true);\n  while (element.firstChild) {\n    element.removeChild(element.firstChild);\n  }\n}\n\nfunction jqLiteRemove(element, keepData) {\n  if (!keepData) jqLiteDealoc(element);\n  var parent = element.parentNode;\n  if (parent) parent.removeChild(element);\n}\n\n\nfunction jqLiteDocumentLoaded(action, win) {\n  win = win || window;\n  if (win.document.readyState === 'complete') {\n    // Force the action to be run async for consistent behavior\n    // from the action's point of view\n    // i.e. it will definitely not be in a $apply\n    win.setTimeout(action);\n  } else {\n    // No need to unbind this handler as load is only ever called once\n    jqLite(win).on('load', action);\n  }\n}\n\nfunction jqLiteReady(fn) {\n  function trigger() {\n    window.document.removeEventListener('DOMContentLoaded', trigger);\n    window.removeEventListener('load', trigger);\n    fn();\n  }\n\n  // check if document is already loaded\n  if (window.document.readyState === 'complete') {\n    window.setTimeout(fn);\n  } else {\n    // We can not use jqLite since we are not done loading and jQuery could be loaded later.\n\n    // Works for modern browsers and IE9\n    window.document.addEventListener('DOMContentLoaded', trigger);\n\n    // Fallback to window.onload for others\n    window.addEventListener('load', trigger);\n  }\n}\n\n//////////////////////////////////////////\n// Functions which are declared directly.\n//////////////////////////////////////////\nvar JQLitePrototype = JQLite.prototype = {\n  ready: jqLiteReady,\n  toString: function() {\n    var value = [];\n    forEach(this, function(e) { value.push('' + e);});\n    return '[' + value.join(', ') + ']';\n  },\n\n  eq: function(index) {\n      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);\n  },\n\n  length: 0,\n  push: push,\n  sort: [].sort,\n  splice: [].splice\n};\n\n//////////////////////////////////////////\n// Functions iterating getter/setters.\n// these functions return self on setter and\n// value on get.\n//////////////////////////////////////////\nvar BOOLEAN_ATTR = {};\nforEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {\n  BOOLEAN_ATTR[lowercase(value)] = value;\n});\nvar BOOLEAN_ELEMENTS = {};\nforEach('input,select,option,textarea,button,form,details'.split(','), function(value) {\n  BOOLEAN_ELEMENTS[value] = true;\n});\nvar ALIASED_ATTR = {\n  'ngMinlength': 'minlength',\n  'ngMaxlength': 'maxlength',\n  'ngMin': 'min',\n  'ngMax': 'max',\n  'ngPattern': 'pattern',\n  'ngStep': 'step'\n};\n\nfunction getBooleanAttrName(element, name) {\n  // check dom last since we will most likely fail on name\n  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];\n\n  // booleanAttr is here twice to minimize DOM access\n  return booleanAttr && BOOLEAN_ELEMENTS[nodeName_(element)] && booleanAttr;\n}\n\nfunction getAliasedAttrName(name) {\n  return ALIASED_ATTR[name];\n}\n\nforEach({\n  data: jqLiteData,\n  removeData: jqLiteRemoveData,\n  hasData: jqLiteHasData,\n  cleanData: function jqLiteCleanData(nodes) {\n    for (var i = 0, ii = nodes.length; i < ii; i++) {\n      jqLiteRemoveData(nodes[i]);\n    }\n  }\n}, function(fn, name) {\n  JQLite[name] = fn;\n});\n\nforEach({\n  data: jqLiteData,\n  inheritedData: jqLiteInheritedData,\n\n  scope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);\n  },\n\n  isolateScope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');\n  },\n\n  controller: jqLiteController,\n\n  injector: function(element) {\n    return jqLiteInheritedData(element, '$injector');\n  },\n\n  removeAttr: function(element, name) {\n    element.removeAttribute(name);\n  },\n\n  hasClass: jqLiteHasClass,\n\n  css: function(element, name, value) {\n    name = cssKebabToCamel(name);\n\n    if (isDefined(value)) {\n      element.style[name] = value;\n    } else {\n      return element.style[name];\n    }\n  },\n\n  attr: function(element, name, value) {\n    var ret;\n    var nodeType = element.nodeType;\n    if (nodeType === NODE_TYPE_TEXT || nodeType === NODE_TYPE_ATTRIBUTE || nodeType === NODE_TYPE_COMMENT ||\n      !element.getAttribute) {\n      return;\n    }\n\n    var lowercasedName = lowercase(name);\n    var isBooleanAttr = BOOLEAN_ATTR[lowercasedName];\n\n    if (isDefined(value)) {\n      // setter\n\n      if (value === null || (value === false && isBooleanAttr)) {\n        element.removeAttribute(name);\n      } else {\n        element.setAttribute(name, isBooleanAttr ? lowercasedName : value);\n      }\n    } else {\n      // getter\n\n      ret = element.getAttribute(name);\n\n      if (isBooleanAttr && ret !== null) {\n        ret = lowercasedName;\n      }\n      // Normalize non-existing attributes to undefined (as jQuery).\n      return ret === null ? undefined : ret;\n    }\n  },\n\n  prop: function(element, name, value) {\n    if (isDefined(value)) {\n      element[name] = value;\n    } else {\n      return element[name];\n    }\n  },\n\n  text: (function() {\n    getText.$dv = '';\n    return getText;\n\n    function getText(element, value) {\n      if (isUndefined(value)) {\n        var nodeType = element.nodeType;\n        return (nodeType === NODE_TYPE_ELEMENT || nodeType === NODE_TYPE_TEXT) ? element.textContent : '';\n      }\n      element.textContent = value;\n    }\n  })(),\n\n  val: function(element, value) {\n    if (isUndefined(value)) {\n      if (element.multiple && nodeName_(element) === 'select') {\n        var result = [];\n        forEach(element.options, function(option) {\n          if (option.selected) {\n            result.push(option.value || option.text);\n          }\n        });\n        return result;\n      }\n      return element.value;\n    }\n    element.value = value;\n  },\n\n  html: function(element, value) {\n    if (isUndefined(value)) {\n      return element.innerHTML;\n    }\n    jqLiteDealoc(element, true);\n    element.innerHTML = value;\n  },\n\n  empty: jqLiteEmpty\n}, function(fn, name) {\n  /**\n   * Properties: writes return selection, reads return first value\n   */\n  JQLite.prototype[name] = function(arg1, arg2) {\n    var i, key;\n    var nodeCount = this.length;\n\n    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it\n    // in a way that survives minification.\n    // jqLiteEmpty takes no arguments but is a setter.\n    if (fn !== jqLiteEmpty &&\n        (isUndefined((fn.length === 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2))) {\n      if (isObject(arg1)) {\n\n        // we are a write, but the object properties are the key/values\n        for (i = 0; i < nodeCount; i++) {\n          if (fn === jqLiteData) {\n            // data() takes the whole object in jQuery\n            fn(this[i], arg1);\n          } else {\n            for (key in arg1) {\n              fn(this[i], key, arg1[key]);\n            }\n          }\n        }\n        // return self for chaining\n        return this;\n      } else {\n        // we are a read, so read the first child.\n        // TODO: do we still need this?\n        var value = fn.$dv;\n        // Only if we have $dv do we iterate over all, otherwise it is just the first element.\n        var jj = (isUndefined(value)) ? Math.min(nodeCount, 1) : nodeCount;\n        for (var j = 0; j < jj; j++) {\n          var nodeValue = fn(this[j], arg1, arg2);\n          value = value ? value + nodeValue : nodeValue;\n        }\n        return value;\n      }\n    } else {\n      // we are a write, so apply to all children\n      for (i = 0; i < nodeCount; i++) {\n        fn(this[i], arg1, arg2);\n      }\n      // return self for chaining\n      return this;\n    }\n  };\n});\n\nfunction createEventHandler(element, events) {\n  var eventHandler = function(event, type) {\n    // jQuery specific api\n    event.isDefaultPrevented = function() {\n      return event.defaultPrevented;\n    };\n\n    var eventFns = events[type || event.type];\n    var eventFnsLength = eventFns ? eventFns.length : 0;\n\n    if (!eventFnsLength) return;\n\n    if (isUndefined(event.immediatePropagationStopped)) {\n      var originalStopImmediatePropagation = event.stopImmediatePropagation;\n      event.stopImmediatePropagation = function() {\n        event.immediatePropagationStopped = true;\n\n        if (event.stopPropagation) {\n          event.stopPropagation();\n        }\n\n        if (originalStopImmediatePropagation) {\n          originalStopImmediatePropagation.call(event);\n        }\n      };\n    }\n\n    event.isImmediatePropagationStopped = function() {\n      return event.immediatePropagationStopped === true;\n    };\n\n    // Some events have special handlers that wrap the real handler\n    var handlerWrapper = eventFns.specialHandlerWrapper || defaultHandlerWrapper;\n\n    // Copy event handlers in case event handlers array is modified during execution.\n    if ((eventFnsLength > 1)) {\n      eventFns = shallowCopy(eventFns);\n    }\n\n    for (var i = 0; i < eventFnsLength; i++) {\n      if (!event.isImmediatePropagationStopped()) {\n        handlerWrapper(element, event, eventFns[i]);\n      }\n    }\n  };\n\n  // TODO: this is a hack for angularMocks/clearDataCache that makes it possible to deregister all\n  //       events on `element`\n  eventHandler.elem = element;\n  return eventHandler;\n}\n\nfunction defaultHandlerWrapper(element, event, handler) {\n  handler.call(element, event);\n}\n\nfunction specialMouseHandlerWrapper(target, event, handler) {\n  // Refer to jQuery's implementation of mouseenter & mouseleave\n  // Read about mouseenter and mouseleave:\n  // http://www.quirksmode.org/js/events_mouse.html#link8\n  var related = event.relatedTarget;\n  // For mousenter/leave call the handler if related is outside the target.\n  // NB: No relatedTarget if the mouse left/entered the browser window\n  if (!related || (related !== target && !jqLiteContains.call(target, related))) {\n    handler.call(target, event);\n  }\n}\n\n//////////////////////////////////////////\n// Functions iterating traversal.\n// These functions chain results into a single\n// selector.\n//////////////////////////////////////////\nforEach({\n  removeData: jqLiteRemoveData,\n\n  on: function jqLiteOn(element, type, fn, unsupported) {\n    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');\n\n    // Do not add event handlers to non-elements because they will not be cleaned up.\n    if (!jqLiteAcceptsData(element)) {\n      return;\n    }\n\n    var expandoStore = jqLiteExpandoStore(element, true);\n    var events = expandoStore.events;\n    var handle = expandoStore.handle;\n\n    if (!handle) {\n      handle = expandoStore.handle = createEventHandler(element, events);\n    }\n\n    // http://jsperf.com/string-indexof-vs-split\n    var types = type.indexOf(' ') >= 0 ? type.split(' ') : [type];\n    var i = types.length;\n\n    var addHandler = function(type, specialHandlerWrapper, noEventListener) {\n      var eventFns = events[type];\n\n      if (!eventFns) {\n        eventFns = events[type] = [];\n        eventFns.specialHandlerWrapper = specialHandlerWrapper;\n        if (type !== '$destroy' && !noEventListener) {\n          element.addEventListener(type, handle);\n        }\n      }\n\n      eventFns.push(fn);\n    };\n\n    while (i--) {\n      type = types[i];\n      if (MOUSE_EVENT_MAP[type]) {\n        addHandler(MOUSE_EVENT_MAP[type], specialMouseHandlerWrapper);\n        addHandler(type, undefined, true);\n      } else {\n        addHandler(type);\n      }\n    }\n  },\n\n  off: jqLiteOff,\n\n  one: function(element, type, fn) {\n    element = jqLite(element);\n\n    //add the listener twice so that when it is called\n    //you can remove the original function and still be\n    //able to call element.off(ev, fn) normally\n    element.on(type, function onFn() {\n      element.off(type, fn);\n      element.off(type, onFn);\n    });\n    element.on(type, fn);\n  },\n\n  replaceWith: function(element, replaceNode) {\n    var index, parent = element.parentNode;\n    jqLiteDealoc(element);\n    forEach(new JQLite(replaceNode), function(node) {\n      if (index) {\n        parent.insertBefore(node, index.nextSibling);\n      } else {\n        parent.replaceChild(node, element);\n      }\n      index = node;\n    });\n  },\n\n  children: function(element) {\n    var children = [];\n    forEach(element.childNodes, function(element) {\n      if (element.nodeType === NODE_TYPE_ELEMENT) {\n        children.push(element);\n      }\n    });\n    return children;\n  },\n\n  contents: function(element) {\n    return element.contentDocument || element.childNodes || [];\n  },\n\n  append: function(element, node) {\n    var nodeType = element.nodeType;\n    if (nodeType !== NODE_TYPE_ELEMENT && nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT) return;\n\n    node = new JQLite(node);\n\n    for (var i = 0, ii = node.length; i < ii; i++) {\n      var child = node[i];\n      element.appendChild(child);\n    }\n  },\n\n  prepend: function(element, node) {\n    if (element.nodeType === NODE_TYPE_ELEMENT) {\n      var index = element.firstChild;\n      forEach(new JQLite(node), function(child) {\n        element.insertBefore(child, index);\n      });\n    }\n  },\n\n  wrap: function(element, wrapNode) {\n    jqLiteWrapNode(element, jqLite(wrapNode).eq(0).clone()[0]);\n  },\n\n  remove: jqLiteRemove,\n\n  detach: function(element) {\n    jqLiteRemove(element, true);\n  },\n\n  after: function(element, newElement) {\n    var index = element, parent = element.parentNode;\n\n    if (parent) {\n      newElement = new JQLite(newElement);\n\n      for (var i = 0, ii = newElement.length; i < ii; i++) {\n        var node = newElement[i];\n        parent.insertBefore(node, index.nextSibling);\n        index = node;\n      }\n    }\n  },\n\n  addClass: jqLiteAddClass,\n  removeClass: jqLiteRemoveClass,\n\n  toggleClass: function(element, selector, condition) {\n    if (selector) {\n      forEach(selector.split(' '), function(className) {\n        var classCondition = condition;\n        if (isUndefined(classCondition)) {\n          classCondition = !jqLiteHasClass(element, className);\n        }\n        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);\n      });\n    }\n  },\n\n  parent: function(element) {\n    var parent = element.parentNode;\n    return parent && parent.nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT ? parent : null;\n  },\n\n  next: function(element) {\n    return element.nextElementSibling;\n  },\n\n  find: function(element, selector) {\n    if (element.getElementsByTagName) {\n      return element.getElementsByTagName(selector);\n    } else {\n      return [];\n    }\n  },\n\n  clone: jqLiteClone,\n\n  triggerHandler: function(element, event, extraParameters) {\n\n    var dummyEvent, eventFnsCopy, handlerArgs;\n    var eventName = event.type || event;\n    var expandoStore = jqLiteExpandoStore(element);\n    var events = expandoStore && expandoStore.events;\n    var eventFns = events && events[eventName];\n\n    if (eventFns) {\n      // Create a dummy event to pass to the handlers\n      dummyEvent = {\n        preventDefault: function() { this.defaultPrevented = true; },\n        isDefaultPrevented: function() { return this.defaultPrevented === true; },\n        stopImmediatePropagation: function() { this.immediatePropagationStopped = true; },\n        isImmediatePropagationStopped: function() { return this.immediatePropagationStopped === true; },\n        stopPropagation: noop,\n        type: eventName,\n        target: element\n      };\n\n      // If a custom event was provided then extend our dummy event with it\n      if (event.type) {\n        dummyEvent = extend(dummyEvent, event);\n      }\n\n      // Copy event handlers in case event handlers array is modified during execution.\n      eventFnsCopy = shallowCopy(eventFns);\n      handlerArgs = extraParameters ? [dummyEvent].concat(extraParameters) : [dummyEvent];\n\n      forEach(eventFnsCopy, function(fn) {\n        if (!dummyEvent.isImmediatePropagationStopped()) {\n          fn.apply(element, handlerArgs);\n        }\n      });\n    }\n  }\n}, function(fn, name) {\n  /**\n   * chaining functions\n   */\n  JQLite.prototype[name] = function(arg1, arg2, arg3) {\n    var value;\n\n    for (var i = 0, ii = this.length; i < ii; i++) {\n      if (isUndefined(value)) {\n        value = fn(this[i], arg1, arg2, arg3);\n        if (isDefined(value)) {\n          // any function which returns a value needs to be wrapped\n          value = jqLite(value);\n        }\n      } else {\n        jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));\n      }\n    }\n    return isDefined(value) ? value : this;\n  };\n});\n\n// bind legacy bind/unbind to on/off\nJQLite.prototype.bind = JQLite.prototype.on;\nJQLite.prototype.unbind = JQLite.prototype.off;\n\n\n// Provider for private $$jqLite service\n/** @this */\nfunction $$jqLiteProvider() {\n  this.$get = function $$jqLite() {\n    return extend(JQLite, {\n      hasClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteHasClass(node, classes);\n      },\n      addClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteAddClass(node, classes);\n      },\n      removeClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteRemoveClass(node, classes);\n      }\n    });\n  };\n}\n\n/**\n * Computes a hash of an 'obj'.\n * Hash of a:\n *  string is string\n *  number is number as string\n *  object is either result of calling $$hashKey function on the object or uniquely generated id,\n *         that is also assigned to the $$hashKey property of the object.\n *\n * @param obj\n * @returns {string} hash string such that the same input will have the same hash string.\n *         The resulting string key is in 'type:hashKey' format.\n */\nfunction hashKey(obj, nextUidFn) {\n  var key = obj && obj.$$hashKey;\n\n  if (key) {\n    if (typeof key === 'function') {\n      key = obj.$$hashKey();\n    }\n    return key;\n  }\n\n  var objType = typeof obj;\n  if (objType === 'function' || (objType === 'object' && obj !== null)) {\n    key = obj.$$hashKey = objType + ':' + (nextUidFn || nextUid)();\n  } else {\n    key = objType + ':' + obj;\n  }\n\n  return key;\n}\n\n// A minimal ES2015 Map implementation.\n// Should be bug/feature equivalent to the native implementations of supported browsers\n// (for the features required in Angular).\n// See https://kangax.github.io/compat-table/es6/#test-Map\nvar nanKey = Object.create(null);\nfunction NgMapShim() {\n  this._keys = [];\n  this._values = [];\n  this._lastKey = NaN;\n  this._lastIndex = -1;\n}\nNgMapShim.prototype = {\n  _idx: function(key) {\n    if (key === this._lastKey) {\n      return this._lastIndex;\n    }\n    this._lastKey = key;\n    this._lastIndex = this._keys.indexOf(key);\n    return this._lastIndex;\n  },\n  _transformKey: function(key) {\n    return isNumberNaN(key) ? nanKey : key;\n  },\n  get: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx !== -1) {\n      return this._values[idx];\n    }\n  },\n  set: function(key, value) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx === -1) {\n      idx = this._lastIndex = this._keys.length;\n    }\n    this._keys[idx] = key;\n    this._values[idx] = value;\n\n    // Support: IE11\n    // Do not `return this` to simulate the partial IE11 implementation\n  },\n  delete: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx === -1) {\n      return false;\n    }\n    this._keys.splice(idx, 1);\n    this._values.splice(idx, 1);\n    this._lastKey = NaN;\n    this._lastIndex = -1;\n    return true;\n  }\n};\n\n// For now, always use `NgMapShim`, even if `window.Map` is available. Some native implementations\n// are still buggy (often in subtle ways) and can cause hard-to-debug failures. When native `Map`\n// implementations get more stable, we can reconsider switching to `window.Map` (when available).\nvar NgMap = NgMapShim;\n\nvar $$MapProvider = [/** @this */function() {\n  this.$get = [function() {\n    return NgMap;\n  }];\n}];\n\n/**\n * @ngdoc function\n * @module ng\n * @name angular.injector\n * @kind function\n *\n * @description\n * Creates an injector object that can be used for retrieving services as well as for\n * dependency injection (see {@link guide/di dependency injection}).\n *\n * @param {Array.<string|Function>} modules A list of module functions or their aliases. See\n *     {@link angular.module}. The `ng` module must be explicitly added.\n * @param {boolean=} [strictDi=false] Whether the injector should be in strict mode, which\n *     disallows argument name annotation inference.\n * @returns {injector} Injector object. See {@link auto.$injector $injector}.\n *\n * @example\n * Typical usage\n * ```js\n *   // create an injector\n *   var $injector = angular.injector(['ng']);\n *\n *   // use the injector to kick off your application\n *   // use the type inference to auto inject arguments, or use implicit injection\n *   $injector.invoke(function($rootScope, $compile, $document) {\n *     $compile($document)($rootScope);\n *     $rootScope.$digest();\n *   });\n * ```\n *\n * Sometimes you want to get access to the injector of a currently running AngularJS app\n * from outside AngularJS. Perhaps, you want to inject and compile some markup after the\n * application has been bootstrapped. You can do this using the extra `injector()` added\n * to JQuery/jqLite elements. See {@link angular.element}.\n *\n * *This is fairly rare but could be the case if a third party library is injecting the\n * markup.*\n *\n * In the following example a new block of HTML containing a `ng-controller`\n * directive is added to the end of the document body by JQuery. We then compile and link\n * it into the current AngularJS scope.\n *\n * ```js\n * var $div = $('<div ng-controller=\"MyCtrl\">{{content.label}}</div>');\n * $(document.body).append($div);\n *\n * angular.element(document).injector().invoke(function($compile) {\n *   var scope = angular.element($div).scope();\n *   $compile($div)(scope);\n * });\n * ```\n */\n\n\n/**\n * @ngdoc module\n * @name auto\n * @installation\n * @description\n *\n * Implicit module which gets automatically added to each {@link auto.$injector $injector}.\n */\n\nvar ARROW_ARG = /^([^(]+?)=>/;\nvar FN_ARGS = /^[^(]*\\(\\s*([^)]*)\\)/m;\nvar FN_ARG_SPLIT = /,/;\nvar FN_ARG = /^\\s*(_?)(\\S+?)\\1\\s*$/;\nvar STRIP_COMMENTS = /((\\/\\/.*$)|(\\/\\*[\\s\\S]*?\\*\\/))/mg;\nvar $injectorMinErr = minErr('$injector');\n\nfunction stringifyFn(fn) {\n  return Function.prototype.toString.call(fn);\n}\n\nfunction extractArgs(fn) {\n  var fnText = stringifyFn(fn).replace(STRIP_COMMENTS, ''),\n      args = fnText.match(ARROW_ARG) || fnText.match(FN_ARGS);\n  return args;\n}\n\nfunction anonFn(fn) {\n  // For anonymous functions, showing at the very least the function signature can help in\n  // debugging.\n  var args = extractArgs(fn);\n  if (args) {\n    return 'function(' + (args[1] || '').replace(/[\\s\\r\\n]+/, ' ') + ')';\n  }\n  return 'fn';\n}\n\nfunction annotate(fn, strictDi, name) {\n  var $inject,\n      argDecl,\n      last;\n\n  if (typeof fn === 'function') {\n    if (!($inject = fn.$inject)) {\n      $inject = [];\n      if (fn.length) {\n        if (strictDi) {\n          if (!isString(name) || !name) {\n            name = fn.name || anonFn(fn);\n          }\n          throw $injectorMinErr('strictdi',\n            '{0} is not using explicit annotation and cannot be invoked in strict mode', name);\n        }\n        argDecl = extractArgs(fn);\n        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg) {\n          arg.replace(FN_ARG, function(all, underscore, name) {\n            $inject.push(name);\n          });\n        });\n      }\n      fn.$inject = $inject;\n    }\n  } else if (isArray(fn)) {\n    last = fn.length - 1;\n    assertArgFn(fn[last], 'fn');\n    $inject = fn.slice(0, last);\n  } else {\n    assertArgFn(fn, 'fn', true);\n  }\n  return $inject;\n}\n\n///////////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $injector\n *\n * @description\n *\n * `$injector` is used to retrieve object instances as defined by\n * {@link auto.$provide provider}, instantiate types, invoke methods,\n * and load modules.\n *\n * The following always holds true:\n *\n * ```js\n *   var $injector = angular.injector();\n *   expect($injector.get('$injector')).toBe($injector);\n *   expect($injector.invoke(function($injector) {\n *     return $injector;\n *   })).toBe($injector);\n * ```\n *\n * ## Injection Function Annotation\n *\n * JavaScript does not have annotations, and annotations are needed for dependency injection. The\n * following are all valid ways of annotating function with injection arguments and are equivalent.\n *\n * ```js\n *   // inferred (only works if code not minified/obfuscated)\n *   $injector.invoke(function(serviceA){});\n *\n *   // annotated\n *   function explicit(serviceA) {};\n *   explicit.$inject = ['serviceA'];\n *   $injector.invoke(explicit);\n *\n *   // inline\n *   $injector.invoke(['serviceA', function(serviceA){}]);\n * ```\n *\n * ### Inference\n *\n * In JavaScript calling `toString()` on a function returns the function definition. The definition\n * can then be parsed and the function arguments can be extracted. This method of discovering\n * annotations is disallowed when the injector is in strict mode.\n * *NOTE:* This does not work with minification, and obfuscation tools since these tools change the\n * argument names.\n *\n * ### `$inject` Annotation\n * By adding an `$inject` property onto a function the injection parameters can be specified.\n *\n * ### Inline\n * As an array of injection names, where the last item in the array is the function to call.\n */\n\n/**\n * @ngdoc property\n * @name $injector#modules\n * @type {Object}\n * @description\n * A hash containing all the modules that have been loaded into the\n * $injector.\n *\n * You can use this property to find out information about a module via the\n * {@link angular.Module#info `myModule.info(...)`} method.\n *\n * For example:\n *\n * ```\n * var info = $injector.modules['ngAnimate'].info();\n * ```\n *\n * **Do not use this property to attempt to modify the modules after the application\n * has been bootstrapped.**\n */\n\n\n/**\n * @ngdoc method\n * @name $injector#get\n *\n * @description\n * Return an instance of the service.\n *\n * @param {string} name The name of the instance to retrieve.\n * @param {string=} caller An optional string to provide the origin of the function call for error messages.\n * @return {*} The instance.\n */\n\n/**\n * @ngdoc method\n * @name $injector#invoke\n *\n * @description\n * Invoke the method and supply the method arguments from the `$injector`.\n *\n * @param {Function|Array.<string|Function>} fn The injectable function to invoke. Function parameters are\n *   injected according to the {@link guide/di $inject Annotation} rules.\n * @param {Object=} self The `this` for the invoked method.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n *                         object first, before the `$injector` is consulted.\n * @returns {*} the value returned by the invoked `fn` function.\n */\n\n/**\n * @ngdoc method\n * @name $injector#has\n *\n * @description\n * Allows the user to query if the particular service exists.\n *\n * @param {string} name Name of the service to query.\n * @returns {boolean} `true` if injector has given service.\n */\n\n/**\n * @ngdoc method\n * @name $injector#instantiate\n * @description\n * Create a new instance of JS type. The method takes a constructor function, invokes the new\n * operator, and supplies all of the arguments to the constructor function as specified by the\n * constructor annotation.\n *\n * @param {Function} Type Annotated constructor function.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n * object first, before the `$injector` is consulted.\n * @returns {Object} new instance of `Type`.\n */\n\n/**\n * @ngdoc method\n * @name $injector#annotate\n *\n * @description\n * Returns an array of service names which the function is requesting for injection. This API is\n * used by the injector to determine which services need to be injected into the function when the\n * function is invoked. There are three ways in which the function can be annotated with the needed\n * dependencies.\n *\n * #### Argument names\n *\n * The simplest form is to extract the dependencies from the arguments of the function. This is done\n * by converting the function into a string using `toString()` method and extracting the argument\n * names.\n * ```js\n *   // Given\n *   function MyController($scope, $route) {\n *     // ...\n *   }\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * You can disallow this method by using strict injection mode.\n *\n * This method does not work with code minification / obfuscation. For this reason the following\n * annotation strategies are supported.\n *\n * #### The `$inject` property\n *\n * If a function has an `$inject` property and its value is an array of strings, then the strings\n * represent names of services to be injected into the function.\n * ```js\n *   // Given\n *   var MyController = function(obfuscatedScope, obfuscatedRoute) {\n *     // ...\n *   }\n *   // Define function dependencies\n *   MyController['$inject'] = ['$scope', '$route'];\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * #### The array notation\n *\n * It is often desirable to inline Injected functions and that's when setting the `$inject` property\n * is very inconvenient. In these situations using the array notation to specify the dependencies in\n * a way that survives minification is a better choice:\n *\n * ```js\n *   // We wish to write this (not minification / obfuscation safe)\n *   injector.invoke(function($compile, $rootScope) {\n *     // ...\n *   });\n *\n *   // We are forced to write break inlining\n *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {\n *     // ...\n *   };\n *   tmpFn.$inject = ['$compile', '$rootScope'];\n *   injector.invoke(tmpFn);\n *\n *   // To better support inline function the inline annotation is supported\n *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {\n *     // ...\n *   }]);\n *\n *   // Therefore\n *   expect(injector.annotate(\n *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])\n *    ).toEqual(['$compile', '$rootScope']);\n * ```\n *\n * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to\n * be retrieved as described above.\n *\n * @param {boolean=} [strictDi=false] Disallow argument name annotation inference.\n *\n * @returns {Array.<string>} The names of the services which the function requires.\n */\n/**\n * @ngdoc method\n * @name $injector#loadNewModules\n *\n * @description\n *\n * **This is a dangerous API, which you use at your own risk!**\n *\n * Add the specified modules to the current injector.\n *\n * This method will add each of the injectables to the injector and execute all of the config and run\n * blocks for each module passed to the method.\n *\n * If a module has already been loaded into the injector then it will not be loaded again.\n *\n * * The application developer is responsible for loading the code containing the modules; and for\n * ensuring that lazy scripts are not downloaded and executed more often that desired.\n * * Previously compiled HTML will not be affected by newly loaded directives, filters and components.\n * * Modules cannot be unloaded.\n *\n * You can use {@link $injector#modules `$injector.modules`} to check whether a module has been loaded\n * into the injector, which may indicate whether the script has been executed already.\n *\n * @example\n * Here is an example of loading a bundle of modules, with a utility method called `getScript`:\n *\n * ```javascript\n * app.factory('loadModule', function($injector) {\n *   return function loadModule(moduleName, bundleUrl) {\n *     return getScript(bundleUrl).then(function() { $injector.loadNewModules([moduleName]); });\n *   };\n * })\n * ```\n *\n * @param {Array<String|Function|Array>=} mods an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n */\n\n\n/**\n * @ngdoc service\n * @name $provide\n *\n * @description\n *\n * The {@link auto.$provide $provide} service has a number of methods for registering components\n * with the {@link auto.$injector $injector}. Many of these functions are also exposed on\n * {@link angular.Module}.\n *\n * An AngularJS **service** is a singleton object created by a **service factory**.  These **service\n * factories** are functions which, in turn, are created by a **service provider**.\n * The **service providers** are constructor functions. When instantiated they must contain a\n * property called `$get`, which holds the **service factory** function.\n *\n * When you request a service, the {@link auto.$injector $injector} is responsible for finding the\n * correct **service provider**, instantiating it and then calling its `$get` **service factory**\n * function to get the instance of the **service**.\n *\n * Often services have no configuration options and there is no need to add methods to the service\n * provider.  The provider will be no more than a constructor function with a `$get` property. For\n * these cases the {@link auto.$provide $provide} service has additional helper methods to register\n * services without specifying a provider.\n *\n * * {@link auto.$provide#provider provider(name, provider)} - registers a **service provider** with the\n *     {@link auto.$injector $injector}\n * * {@link auto.$provide#constant constant(name, obj)} - registers a value/object that can be accessed by\n *     providers and services.\n * * {@link auto.$provide#value value(name, obj)} - registers a value/object that can only be accessed by\n *     services, not providers.\n * * {@link auto.$provide#factory factory(name, fn)} - registers a service **factory function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will contain the\n *     given factory function.\n * * {@link auto.$provide#service service(name, Fn)} - registers a **constructor function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate\n *      a new object using the given constructor function.\n * * {@link auto.$provide#decorator decorator(name, decorFn)} - registers a **decorator function** that\n *      will be able to modify or replace the implementation of another service.\n *\n * See the individual methods for more information and examples.\n */\n\n/**\n * @ngdoc method\n * @name $provide#provider\n * @description\n *\n * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions\n * are constructor functions, whose instances are responsible for \"providing\" a factory for a\n * service.\n *\n * Service provider names start with the name of the service they provide followed by `Provider`.\n * For example, the {@link ng.$log $log} service has a provider called\n * {@link ng.$logProvider $logProvider}.\n *\n * Service provider objects can have additional methods which allow configuration of the provider\n * and its service. Importantly, you can configure what kind of service is created by the `$get`\n * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a\n * method {@link ng.$logProvider#debugEnabled debugEnabled}\n * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the\n * console or not.\n *\n * It is possible to inject other providers into the provider function,\n * but the injected provider must have been defined before the one that requires it.\n *\n * @param {string} name The name of the instance. NOTE: the provider will be available under `name +\n                        'Provider'` key.\n * @param {(Object|function())} provider If the provider is:\n *\n *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using\n *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.\n *   - `Constructor`: a new instance of the provider will be created using\n *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.\n *\n * @returns {Object} registered provider instance\n\n * @example\n *\n * The following example shows how to create a simple event tracking service and register it using\n * {@link auto.$provide#provider $provide.provider()}.\n *\n * ```js\n *  // Define the eventTracker provider\n *  function EventTrackerProvider() {\n *    var trackingUrl = '/track';\n *\n *    // A provider method for configuring where the tracked events should been saved\n *    this.setTrackingUrl = function(url) {\n *      trackingUrl = url;\n *    };\n *\n *    // The service factory function\n *    this.$get = ['$http', function($http) {\n *      var trackedEvents = {};\n *      return {\n *        // Call this to track an event\n *        event: function(event) {\n *          var count = trackedEvents[event] || 0;\n *          count += 1;\n *          trackedEvents[event] = count;\n *          return count;\n *        },\n *        // Call this to save the tracked events to the trackingUrl\n *        save: function() {\n *          $http.post(trackingUrl, trackedEvents);\n *        }\n *      };\n *    }];\n *  }\n *\n *  describe('eventTracker', function() {\n *    var postSpy;\n *\n *    beforeEach(module(function($provide) {\n *      // Register the eventTracker provider\n *      $provide.provider('eventTracker', EventTrackerProvider);\n *    }));\n *\n *    beforeEach(module(function(eventTrackerProvider) {\n *      // Configure eventTracker provider\n *      eventTrackerProvider.setTrackingUrl('/custom-track');\n *    }));\n *\n *    it('tracks events', inject(function(eventTracker) {\n *      expect(eventTracker.event('login')).toEqual(1);\n *      expect(eventTracker.event('login')).toEqual(2);\n *    }));\n *\n *    it('saves to the tracking url', inject(function(eventTracker, $http) {\n *      postSpy = spyOn($http, 'post');\n *      eventTracker.event('login');\n *      eventTracker.save();\n *      expect(postSpy).toHaveBeenCalled();\n *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');\n *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');\n *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });\n *    }));\n *  });\n * ```\n */\n\n/**\n * @ngdoc method\n * @name $provide#factory\n * @description\n *\n * Register a **service factory**, which will be called to return the service instance.\n * This is short for registering a service where its provider consists of only a `$get` property,\n * which is the given service factory function.\n * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to\n * configure your service in a provider.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} $getFn The injectable $getFn for the instance creation.\n *                      Internally this is a short hand for `$provide.provider(name, {$get: $getFn})`.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service\n * ```js\n *   $provide.factory('ping', ['$http', function($http) {\n *     return function ping() {\n *       return $http.send('/ping');\n *     };\n *   }]);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#service\n * @description\n *\n * Register a **service constructor**, which will be invoked with `new` to create the service\n * instance.\n * This is short for registering a service where its provider's `$get` property is a factory\n * function that returns an instance instantiated by the injector from the service constructor\n * function.\n *\n * Internally it looks a bit like this:\n *\n * ```\n * {\n *   $get: function() {\n *     return $injector.instantiate(constructor);\n *   }\n * }\n * ```\n *\n *\n * You should use {@link auto.$provide#service $provide.service(class)} if you define your service\n * as a type/class.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} constructor An injectable class (constructor function)\n *     that will be instantiated.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service using\n * {@link auto.$provide#service $provide.service(class)}.\n * ```js\n *   var Ping = function($http) {\n *     this.$http = $http;\n *   };\n *\n *   Ping.$inject = ['$http'];\n *\n *   Ping.prototype.send = function() {\n *     return this.$http.get('/ping');\n *   };\n *   $provide.service('ping', Ping);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping.send();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#value\n * @description\n *\n * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a\n * number, an array, an object or a function. This is short for registering a service where its\n * provider's `$get` property is a factory function that takes no arguments and returns the **value\n * service**. That also means it is not possible to inject other services into a value service.\n *\n * Value services are similar to constant services, except that they cannot be injected into a\n * module configuration function (see {@link angular.Module#config}) but they can be overridden by\n * an AngularJS {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the instance.\n * @param {*} value The value.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here are some examples of creating value services.\n * ```js\n *   $provide.value('ADMIN_USER', 'admin');\n *\n *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });\n *\n *   $provide.value('halfOf', function(value) {\n *     return value / 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#constant\n * @description\n *\n * Register a **constant service** with the {@link auto.$injector $injector}, such as a string,\n * a number, an array, an object or a function. Like the {@link auto.$provide#value value}, it is not\n * possible to inject other services into a constant.\n *\n * But unlike {@link auto.$provide#value value}, a constant can be\n * injected into a module configuration function (see {@link angular.Module#config}) and it cannot\n * be overridden by an AngularJS {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the constant.\n * @param {*} value The constant value.\n * @returns {Object} registered instance\n *\n * @example\n * Here a some examples of creating constants:\n * ```js\n *   $provide.constant('SHARD_HEIGHT', 306);\n *\n *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);\n *\n *   $provide.constant('double', function(value) {\n *     return value * 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#decorator\n * @description\n *\n * Register a **decorator function** with the {@link auto.$injector $injector}. A decorator function\n * intercepts the creation of a service, allowing it to override or modify the behavior of the\n * service. The return value of the decorator function may be the original service, or a new service\n * that replaces (or wraps and delegates to) the original service.\n *\n * You can find out more about using decorators in the {@link guide/decorators} guide.\n *\n * @param {string} name The name of the service to decorate.\n * @param {Function|Array.<string|Function>} decorator This function will be invoked when the service needs to be\n *    provided and should return the decorated service instance. The function is called using\n *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.\n *    Local injection arguments:\n *\n *    * `$delegate` - The original service instance, which can be replaced, monkey patched, configured,\n *      decorated or delegated to.\n *\n * @example\n * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting\n * calls to {@link ng.$log#error $log.warn()}.\n * ```js\n *   $provide.decorator('$log', ['$delegate', function($delegate) {\n *     $delegate.warn = $delegate.error;\n *     return $delegate;\n *   }]);\n * ```\n */\n\n\nfunction createInjector(modulesToLoad, strictDi) {\n  strictDi = (strictDi === true);\n  var INSTANTIATING = {},\n      providerSuffix = 'Provider',\n      path = [],\n      loadedModules = new NgMap(),\n      providerCache = {\n        $provide: {\n            provider: supportObject(provider),\n            factory: supportObject(factory),\n            service: supportObject(service),\n            value: supportObject(value),\n            constant: supportObject(constant),\n            decorator: decorator\n          }\n      },\n      providerInjector = (providerCache.$injector =\n          createInternalInjector(providerCache, function(serviceName, caller) {\n            if (angular.isString(caller)) {\n              path.push(caller);\n            }\n            throw $injectorMinErr('unpr', 'Unknown provider: {0}', path.join(' <- '));\n          })),\n      instanceCache = {},\n      protoInstanceInjector =\n          createInternalInjector(instanceCache, function(serviceName, caller) {\n            var provider = providerInjector.get(serviceName + providerSuffix, caller);\n            return instanceInjector.invoke(\n                provider.$get, provider, undefined, serviceName);\n          }),\n      instanceInjector = protoInstanceInjector;\n\n  providerCache['$injector' + providerSuffix] = { $get: valueFn(protoInstanceInjector) };\n  instanceInjector.modules = providerInjector.modules = createMap();\n  var runBlocks = loadModules(modulesToLoad);\n  instanceInjector = protoInstanceInjector.get('$injector');\n  instanceInjector.strictDi = strictDi;\n  forEach(runBlocks, function(fn) { if (fn) instanceInjector.invoke(fn); });\n\n  instanceInjector.loadNewModules = function(mods) {\n    forEach(loadModules(mods), function(fn) { if (fn) instanceInjector.invoke(fn); });\n  };\n\n\n  return instanceInjector;\n\n  ////////////////////////////////////\n  // $provider\n  ////////////////////////////////////\n\n  function supportObject(delegate) {\n    return function(key, value) {\n      if (isObject(key)) {\n        forEach(key, reverseParams(delegate));\n      } else {\n        return delegate(key, value);\n      }\n    };\n  }\n\n  function provider(name, provider_) {\n    assertNotHasOwnProperty(name, 'service');\n    if (isFunction(provider_) || isArray(provider_)) {\n      provider_ = providerInjector.instantiate(provider_);\n    }\n    if (!provider_.$get) {\n      throw $injectorMinErr('pget', 'Provider \\'{0}\\' must define $get factory method.', name);\n    }\n    return (providerCache[name + providerSuffix] = provider_);\n  }\n\n  function enforceReturnValue(name, factory) {\n    return /** @this */ function enforcedReturnValue() {\n      var result = instanceInjector.invoke(factory, this);\n      if (isUndefined(result)) {\n        throw $injectorMinErr('undef', 'Provider \\'{0}\\' must return a value from $get factory method.', name);\n      }\n      return result;\n    };\n  }\n\n  function factory(name, factoryFn, enforce) {\n    return provider(name, {\n      $get: enforce !== false ? enforceReturnValue(name, factoryFn) : factoryFn\n    });\n  }\n\n  function service(name, constructor) {\n    return factory(name, ['$injector', function($injector) {\n      return $injector.instantiate(constructor);\n    }]);\n  }\n\n  function value(name, val) { return factory(name, valueFn(val), false); }\n\n  function constant(name, value) {\n    assertNotHasOwnProperty(name, 'constant');\n    providerCache[name] = value;\n    instanceCache[name] = value;\n  }\n\n  function decorator(serviceName, decorFn) {\n    var origProvider = providerInjector.get(serviceName + providerSuffix),\n        orig$get = origProvider.$get;\n\n    origProvider.$get = function() {\n      var origInstance = instanceInjector.invoke(orig$get, origProvider);\n      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});\n    };\n  }\n\n  ////////////////////////////////////\n  // Module Loading\n  ////////////////////////////////////\n  function loadModules(modulesToLoad) {\n    assertArg(isUndefined(modulesToLoad) || isArray(modulesToLoad), 'modulesToLoad', 'not an array');\n    var runBlocks = [], moduleFn;\n    forEach(modulesToLoad, function(module) {\n      if (loadedModules.get(module)) return;\n      loadedModules.set(module, true);\n\n      function runInvokeQueue(queue) {\n        var i, ii;\n        for (i = 0, ii = queue.length; i < ii; i++) {\n          var invokeArgs = queue[i],\n              provider = providerInjector.get(invokeArgs[0]);\n\n          provider[invokeArgs[1]].apply(provider, invokeArgs[2]);\n        }\n      }\n\n      try {\n        if (isString(module)) {\n          moduleFn = angularModule(module);\n          instanceInjector.modules[module] = moduleFn;\n          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);\n          runInvokeQueue(moduleFn._invokeQueue);\n          runInvokeQueue(moduleFn._configBlocks);\n        } else if (isFunction(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else if (isArray(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else {\n          assertArgFn(module, 'module');\n        }\n      } catch (e) {\n        if (isArray(module)) {\n          module = module[module.length - 1];\n        }\n        if (e.message && e.stack && e.stack.indexOf(e.message) === -1) {\n          // Safari & FF's stack traces don't contain error.message content\n          // unlike those of Chrome and IE\n          // So if stack doesn't contain message, we create a new string that contains both.\n          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.\n          // eslint-disable-next-line no-ex-assign\n          e = e.message + '\\n' + e.stack;\n        }\n        throw $injectorMinErr('modulerr', 'Failed to instantiate module {0} due to:\\n{1}',\n                  module, e.stack || e.message || e);\n      }\n    });\n    return runBlocks;\n  }\n\n  ////////////////////////////////////\n  // internal Injector\n  ////////////////////////////////////\n\n  function createInternalInjector(cache, factory) {\n\n    function getService(serviceName, caller) {\n      if (cache.hasOwnProperty(serviceName)) {\n        if (cache[serviceName] === INSTANTIATING) {\n          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',\n                    serviceName + ' <- ' + path.join(' <- '));\n        }\n        return cache[serviceName];\n      } else {\n        try {\n          path.unshift(serviceName);\n          cache[serviceName] = INSTANTIATING;\n          cache[serviceName] = factory(serviceName, caller);\n          return cache[serviceName];\n        } catch (err) {\n          if (cache[serviceName] === INSTANTIATING) {\n            delete cache[serviceName];\n          }\n          throw err;\n        } finally {\n          path.shift();\n        }\n      }\n    }\n\n\n    function injectionArgs(fn, locals, serviceName) {\n      var args = [],\n          $inject = createInjector.$$annotate(fn, strictDi, serviceName);\n\n      for (var i = 0, length = $inject.length; i < length; i++) {\n        var key = $inject[i];\n        if (typeof key !== 'string') {\n          throw $injectorMinErr('itkn',\n                  'Incorrect injection token! Expected service name as string, got {0}', key);\n        }\n        args.push(locals && locals.hasOwnProperty(key) ? locals[key] :\n                                                         getService(key, serviceName));\n      }\n      return args;\n    }\n\n    function isClass(func) {\n      // Support: IE 9-11 only\n      // IE 9-11 do not support classes and IE9 leaks with the code below.\n      if (msie || typeof func !== 'function') {\n        return false;\n      }\n      var result = func.$$ngIsClass;\n      if (!isBoolean(result)) {\n        // Support: Edge 12-13 only\n        // See: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/6156135/\n        result = func.$$ngIsClass = /^(?:class\\b|constructor\\()/.test(stringifyFn(func));\n      }\n      return result;\n    }\n\n    function invoke(fn, self, locals, serviceName) {\n      if (typeof locals === 'string') {\n        serviceName = locals;\n        locals = null;\n      }\n\n      var args = injectionArgs(fn, locals, serviceName);\n      if (isArray(fn)) {\n        fn = fn[fn.length - 1];\n      }\n\n      if (!isClass(fn)) {\n        // http://jsperf.com/angularjs-invoke-apply-vs-switch\n        // #5388\n        return fn.apply(self, args);\n      } else {\n        args.unshift(null);\n        return new (Function.prototype.bind.apply(fn, args))();\n      }\n    }\n\n\n    function instantiate(Type, locals, serviceName) {\n      // Check if Type is annotated and use just the given function at n-1 as parameter\n      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);\n      var ctor = (isArray(Type) ? Type[Type.length - 1] : Type);\n      var args = injectionArgs(Type, locals, serviceName);\n      // Empty object at position 0 is ignored for invocation with `new`, but required.\n      args.unshift(null);\n      return new (Function.prototype.bind.apply(ctor, args))();\n    }\n\n\n    return {\n      invoke: invoke,\n      instantiate: instantiate,\n      get: getService,\n      annotate: createInjector.$$annotate,\n      has: function(name) {\n        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);\n      }\n    };\n  }\n}\n\ncreateInjector.$$annotate = annotate;\n\n/**\n * @ngdoc provider\n * @name $anchorScrollProvider\n * @this\n *\n * @description\n * Use `$anchorScrollProvider` to disable automatic scrolling whenever\n * {@link ng.$location#hash $location.hash()} changes.\n */\nfunction $AnchorScrollProvider() {\n\n  var autoScrollingEnabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $anchorScrollProvider#disableAutoScrolling\n   *\n   * @description\n   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to\n   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />\n   * Use this method to disable automatic scrolling.\n   *\n   * If automatic scrolling is disabled, one must explicitly call\n   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the\n   * current hash.\n   */\n  this.disableAutoScrolling = function() {\n    autoScrollingEnabled = false;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $anchorScroll\n   * @kind function\n   * @requires $window\n   * @requires $location\n   * @requires $rootScope\n   *\n   * @description\n   * When called, it scrolls to the element related to the specified `hash` or (if omitted) to the\n   * current value of {@link ng.$location#hash $location.hash()}, according to the rules specified\n   * in the\n   * [HTML5 spec](http://www.w3.org/html/wg/drafts/html/master/browsers.html#an-indicated-part-of-the-document).\n   *\n   * It also watches the {@link ng.$location#hash $location.hash()} and automatically scrolls to\n   * match any anchor whenever it changes. This can be disabled by calling\n   * {@link ng.$anchorScrollProvider#disableAutoScrolling $anchorScrollProvider.disableAutoScrolling()}.\n   *\n   * Additionally, you can use its {@link ng.$anchorScroll#yOffset yOffset} property to specify a\n   * vertical scroll-offset (either fixed or dynamic).\n   *\n   * @param {string=} hash The hash specifying the element to scroll to. If omitted, the value of\n   *                       {@link ng.$location#hash $location.hash()} will be used.\n   *\n   * @property {(number|function|jqLite)} yOffset\n   * If set, specifies a vertical scroll-offset. This is often useful when there are fixed\n   * positioned elements at the top of the page, such as navbars, headers etc.\n   *\n   * `yOffset` can be specified in various ways:\n   * - **number**: A fixed number of pixels to be used as offset.<br /><br />\n   * - **function**: A getter function called everytime `$anchorScroll()` is executed. Must return\n   *   a number representing the offset (in pixels).<br /><br />\n   * - **jqLite**: A jqLite/jQuery element to be used for specifying the offset. The distance from\n   *   the top of the page to the element's bottom will be used as offset.<br />\n   *   **Note**: The element will be taken into account only as long as its `position` is set to\n   *   `fixed`. This option is useful, when dealing with responsive navbars/headers that adjust\n   *   their height and/or positioning according to the viewport's size.\n   *\n   * <br />\n   * <div class=\"alert alert-warning\">\n   * In order for `yOffset` to work properly, scrolling should take place on the document's root and\n   * not some child element.\n   * </div>\n   *\n   * @example\n     <example module=\"anchorScrollExample\" name=\"anchor-scroll\">\n       <file name=\"index.html\">\n         <div id=\"scrollArea\" ng-controller=\"ScrollController\">\n           <a ng-click=\"gotoBottom()\">Go to bottom</a>\n           <a id=\"bottom\"></a> You're at the bottom!\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollExample', [])\n           .controller('ScrollController', ['$scope', '$location', '$anchorScroll',\n             function($scope, $location, $anchorScroll) {\n               $scope.gotoBottom = function() {\n                 // set the location.hash to the id of\n                 // the element you wish to scroll to.\n                 $location.hash('bottom');\n\n                 // call $anchorScroll()\n                 $anchorScroll();\n               };\n             }]);\n       </file>\n       <file name=\"style.css\">\n         #scrollArea {\n           height: 280px;\n           overflow: auto;\n         }\n\n         #bottom {\n           display: block;\n           margin-top: 2000px;\n         }\n       </file>\n     </example>\n   *\n   * <hr />\n   * The example below illustrates the use of a vertical scroll-offset (specified as a fixed value).\n   * See {@link ng.$anchorScroll#yOffset $anchorScroll.yOffset} for more details.\n   *\n   * @example\n     <example module=\"anchorScrollOffsetExample\" name=\"anchor-scroll-offset\">\n       <file name=\"index.html\">\n         <div class=\"fixed-header\" ng-controller=\"headerCtrl\">\n           <a href=\"\" ng-click=\"gotoAnchor(x)\" ng-repeat=\"x in [1,2,3,4,5]\">\n             Go to anchor {{x}}\n           </a>\n         </div>\n         <div id=\"anchor{{x}}\" class=\"anchor\" ng-repeat=\"x in [1,2,3,4,5]\">\n           Anchor {{x}} of 5\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollOffsetExample', [])\n           .run(['$anchorScroll', function($anchorScroll) {\n             $anchorScroll.yOffset = 50;   // always scroll by 50 extra pixels\n           }])\n           .controller('headerCtrl', ['$anchorScroll', '$location', '$scope',\n             function($anchorScroll, $location, $scope) {\n               $scope.gotoAnchor = function(x) {\n                 var newHash = 'anchor' + x;\n                 if ($location.hash() !== newHash) {\n                   // set the $location.hash to `newHash` and\n                   // $anchorScroll will automatically scroll to it\n                   $location.hash('anchor' + x);\n                 } else {\n                   // call $anchorScroll() explicitly,\n                   // since $location.hash hasn't changed\n                   $anchorScroll();\n                 }\n               };\n             }\n           ]);\n       </file>\n       <file name=\"style.css\">\n         body {\n           padding-top: 50px;\n         }\n\n         .anchor {\n           border: 2px dashed DarkOrchid;\n           padding: 10px 10px 200px 10px;\n         }\n\n         .fixed-header {\n           background-color: rgba(0, 0, 0, 0.2);\n           height: 50px;\n           position: fixed;\n           top: 0; left: 0; right: 0;\n         }\n\n         .fixed-header > a {\n           display: inline-block;\n           margin: 5px 15px;\n         }\n       </file>\n     </example>\n   */\n  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {\n    var document = $window.document;\n\n    // Helper function to get first anchor from a NodeList\n    // (using `Array#some()` instead of `angular#forEach()` since it's more performant\n    //  and working in all supported browsers.)\n    function getFirstAnchor(list) {\n      var result = null;\n      Array.prototype.some.call(list, function(element) {\n        if (nodeName_(element) === 'a') {\n          result = element;\n          return true;\n        }\n      });\n      return result;\n    }\n\n    function getYOffset() {\n\n      var offset = scroll.yOffset;\n\n      if (isFunction(offset)) {\n        offset = offset();\n      } else if (isElement(offset)) {\n        var elem = offset[0];\n        var style = $window.getComputedStyle(elem);\n        if (style.position !== 'fixed') {\n          offset = 0;\n        } else {\n          offset = elem.getBoundingClientRect().bottom;\n        }\n      } else if (!isNumber(offset)) {\n        offset = 0;\n      }\n\n      return offset;\n    }\n\n    function scrollTo(elem) {\n      if (elem) {\n        elem.scrollIntoView();\n\n        var offset = getYOffset();\n\n        if (offset) {\n          // `offset` is the number of pixels we should scroll UP in order to align `elem` properly.\n          // This is true ONLY if the call to `elem.scrollIntoView()` initially aligns `elem` at the\n          // top of the viewport.\n          //\n          // IF the number of pixels from the top of `elem` to the end of the page's content is less\n          // than the height of the viewport, then `elem.scrollIntoView()` will align the `elem` some\n          // way down the page.\n          //\n          // This is often the case for elements near the bottom of the page.\n          //\n          // In such cases we do not need to scroll the whole `offset` up, just the difference between\n          // the top of the element and the offset, which is enough to align the top of `elem` at the\n          // desired position.\n          var elemTop = elem.getBoundingClientRect().top;\n          $window.scrollBy(0, elemTop - offset);\n        }\n      } else {\n        $window.scrollTo(0, 0);\n      }\n    }\n\n    function scroll(hash) {\n      // Allow numeric hashes\n      hash = isString(hash) ? hash : isNumber(hash) ? hash.toString() : $location.hash();\n      var elm;\n\n      // empty hash, scroll to the top of the page\n      if (!hash) scrollTo(null);\n\n      // element with given id\n      else if ((elm = document.getElementById(hash))) scrollTo(elm);\n\n      // first anchor with given name :-D\n      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) scrollTo(elm);\n\n      // no element and hash === 'top', scroll to the top of the page\n      else if (hash === 'top') scrollTo(null);\n    }\n\n    // does not scroll when user clicks on anchor link that is currently on\n    // (no url change, no $location.hash() change), browser native does scroll\n    if (autoScrollingEnabled) {\n      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},\n        function autoScrollWatchAction(newVal, oldVal) {\n          // skip the initial scroll if $location.hash is empty\n          if (newVal === oldVal && newVal === '') return;\n\n          jqLiteDocumentLoaded(function() {\n            $rootScope.$evalAsync(scroll);\n          });\n        });\n    }\n\n    return scroll;\n  }];\n}\n\nvar $animateMinErr = minErr('$animate');\nvar ELEMENT_NODE = 1;\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction extractElementNode(element) {\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction splitClasses(classes) {\n  if (isString(classes)) {\n    classes = classes.split(' ');\n  }\n\n  // Use createMap() to prevent class assumptions involving property names in\n  // Object.prototype\n  var obj = createMap();\n  forEach(classes, function(klass) {\n    // sometimes the split leaves empty string values\n    // incase extra spaces were applied to the options\n    if (klass.length) {\n      obj[klass] = true;\n    }\n  });\n  return obj;\n}\n\n// if any other type of options value besides an Object value is\n// passed into the $animate.method() animation then this helper code\n// will be run which will ignore it. While this patch is not the\n// greatest solution to this, a lot of existing plugins depend on\n// $animate to either call the callback (< 1.2) or return a promise\n// that can be changed. This helper function ensures that the options\n// are wiped clean incase a callback function is provided.\nfunction prepareAnimateOptions(options) {\n  return isObject(options)\n      ? options\n      : {};\n}\n\nvar $$CoreAnimateJsProvider = /** @this */ function() {\n  this.$get = noop;\n};\n\n// this is prefixed with Core since it conflicts with\n// the animateQueueProvider defined in ngAnimate/animateQueue.js\nvar $$CoreAnimateQueueProvider = /** @this */ function() {\n  var postDigestQueue = new NgMap();\n  var postDigestElements = [];\n\n  this.$get = ['$$AnimateRunner', '$rootScope',\n       function($$AnimateRunner,   $rootScope) {\n    return {\n      enabled: noop,\n      on: noop,\n      off: noop,\n      pin: noop,\n\n      push: function(element, event, options, domOperation) {\n        if (domOperation) {\n          domOperation();\n        }\n\n        options = options || {};\n        if (options.from) {\n          element.css(options.from);\n        }\n        if (options.to) {\n          element.css(options.to);\n        }\n\n        if (options.addClass || options.removeClass) {\n          addRemoveClassesPostDigest(element, options.addClass, options.removeClass);\n        }\n\n        var runner = new $$AnimateRunner();\n\n        // since there are no animations to run the runner needs to be\n        // notified that the animation call is complete.\n        runner.complete();\n        return runner;\n      }\n    };\n\n\n    function updateData(data, classes, value) {\n      var changed = false;\n      if (classes) {\n        classes = isString(classes) ? classes.split(' ') :\n                  isArray(classes) ? classes : [];\n        forEach(classes, function(className) {\n          if (className) {\n            changed = true;\n            data[className] = value;\n          }\n        });\n      }\n      return changed;\n    }\n\n    function handleCSSClassChanges() {\n      forEach(postDigestElements, function(element) {\n        var data = postDigestQueue.get(element);\n        if (data) {\n          var existing = splitClasses(element.attr('class'));\n          var toAdd = '';\n          var toRemove = '';\n          forEach(data, function(status, className) {\n            var hasClass = !!existing[className];\n            if (status !== hasClass) {\n              if (status) {\n                toAdd += (toAdd.length ? ' ' : '') + className;\n              } else {\n                toRemove += (toRemove.length ? ' ' : '') + className;\n              }\n            }\n          });\n\n          forEach(element, function(elm) {\n            if (toAdd) {\n              jqLiteAddClass(elm, toAdd);\n            }\n            if (toRemove) {\n              jqLiteRemoveClass(elm, toRemove);\n            }\n          });\n          postDigestQueue.delete(element);\n        }\n      });\n      postDigestElements.length = 0;\n    }\n\n\n    function addRemoveClassesPostDigest(element, add, remove) {\n      var data = postDigestQueue.get(element) || {};\n\n      var classesAdded = updateData(data, add, true);\n      var classesRemoved = updateData(data, remove, false);\n\n      if (classesAdded || classesRemoved) {\n\n        postDigestQueue.set(element, data);\n        postDigestElements.push(element);\n\n        if (postDigestElements.length === 1) {\n          $rootScope.$$postDigest(handleCSSClassChanges);\n        }\n      }\n    }\n  }];\n};\n\n/**\n * @ngdoc provider\n * @name $animateProvider\n *\n * @description\n * Default implementation of $animate that doesn't perform any animations, instead just\n * synchronously performs DOM updates and resolves the returned runner promise.\n *\n * In order to enable animations the `ngAnimate` module has to be loaded.\n *\n * To see the functional implementation check out `src/ngAnimate/animate.js`.\n */\nvar $AnimateProvider = ['$provide', /** @this */ function($provide) {\n  var provider = this;\n  var classNameFilter = null;\n  var customFilter = null;\n\n  this.$$registeredAnimations = Object.create(null);\n\n   /**\n   * @ngdoc method\n   * @name $animateProvider#register\n   *\n   * @description\n   * Registers a new injectable animation factory function. The factory function produces the\n   * animation object which contains callback functions for each event that is expected to be\n   * animated.\n   *\n   *   * `eventFn`: `function(element, ... , doneFunction, options)`\n   *   The element to animate, the `doneFunction` and the options fed into the animation. Depending\n   *   on the type of animation additional arguments will be injected into the animation function. The\n   *   list below explains the function signatures for the different animation methods:\n   *\n   *   - setClass: function(element, addedClasses, removedClasses, doneFunction, options)\n   *   - addClass: function(element, addedClasses, doneFunction, options)\n   *   - removeClass: function(element, removedClasses, doneFunction, options)\n   *   - enter, leave, move: function(element, doneFunction, options)\n   *   - animate: function(element, fromStyles, toStyles, doneFunction, options)\n   *\n   *   Make sure to trigger the `doneFunction` once the animation is fully complete.\n   *\n   * ```js\n   *   return {\n   *     //enter, leave, move signature\n   *     eventFn : function(element, done, options) {\n   *       //code to run the animation\n   *       //once complete, then run done()\n   *       return function endFunction(wasCancelled) {\n   *         //code to cancel the animation\n   *       }\n   *     }\n   *   }\n   * ```\n   *\n   * @param {string} name The name of the animation (this is what the class-based CSS value will be compared to).\n   * @param {Function} factory The factory function that will be executed to return the animation\n   *                           object.\n   */\n  this.register = function(name, factory) {\n    if (name && name.charAt(0) !== '.') {\n      throw $animateMinErr('notcsel', 'Expecting class selector starting with \\'.\\' got \\'{0}\\'.', name);\n    }\n\n    var key = name + '-animation';\n    provider.$$registeredAnimations[name.substr(1)] = key;\n    $provide.factory(key, factory);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#customFilter\n   *\n   * @description\n   * Sets and/or returns the custom filter function that is used to \"filter\" animations, i.e.\n   * determine if an animation is allowed or not. When no filter is specified (the default), no\n   * animation will be blocked. Setting the `customFilter` value will only allow animations for\n   * which the filter function's return value is truthy.\n   *\n   * This allows to easily create arbitrarily complex rules for filtering animations, such as\n   * allowing specific events only, or enabling animations on specific subtrees of the DOM, etc.\n   * Filtering animations can also boost performance for low-powered devices, as well as\n   * applications containing a lot of structural operations.\n   *\n   * <div class=\"alert alert-success\">\n   *   **Best Practice:**\n   *   Keep the filtering function as lean as possible, because it will be called for each DOM\n   *   action (e.g. insertion, removal, class change) performed by \"animation-aware\" directives.\n   *   See {@link guide/animations#which-directives-support-animations- here} for a list of built-in\n   *   directives that support animations.\n   *   Performing computationally expensive or time-consuming operations on each call of the\n   *   filtering function can make your animations sluggish.\n   * </div>\n   *\n   * **Note:** If present, `customFilter` will be checked before\n   * {@link $animateProvider#classNameFilter classNameFilter}.\n   *\n   * @param {Function=} filterFn - The filter function which will be used to filter all animations.\n   *   If a falsy value is returned, no animation will be performed. The function will be called\n   *   with the following arguments:\n   *   - **node** `{DOMElement}` - The DOM element to be animated.\n   *   - **event** `{String}` - The name of the animation event (e.g. `enter`, `leave`, `addClass`\n   *     etc).\n   *   - **options** `{Object}` - A collection of options/styles used for the animation.\n   * @return {Function} The current filter function or `null` if there is none set.\n   */\n  this.customFilter = function(filterFn) {\n    if (arguments.length === 1) {\n      customFilter = isFunction(filterFn) ? filterFn : null;\n    }\n\n    return customFilter;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#classNameFilter\n   *\n   * @description\n   * Sets and/or returns the CSS class regular expression that is checked when performing\n   * an animation. Upon bootstrap the classNameFilter value is not set at all and will\n   * therefore enable $animate to attempt to perform an animation on any element that is triggered.\n   * When setting the `classNameFilter` value, animations will only be performed on elements\n   * that successfully match the filter expression. This in turn can boost performance\n   * for low-powered devices as well as applications containing a lot of structural operations.\n   *\n   * **Note:** If present, `classNameFilter` will be checked after\n   * {@link $animateProvider#customFilter customFilter}. If `customFilter` is present and returns\n   * false, `classNameFilter` will not be checked.\n   *\n   * @param {RegExp=} expression The className expression which will be checked against all animations\n   * @return {RegExp} The current CSS className expression value. If null then there is no expression value\n   */\n  this.classNameFilter = function(expression) {\n    if (arguments.length === 1) {\n      classNameFilter = (expression instanceof RegExp) ? expression : null;\n      if (classNameFilter) {\n        var reservedRegex = new RegExp('[(\\\\s|\\\\/)]' + NG_ANIMATE_CLASSNAME + '[(\\\\s|\\\\/)]');\n        if (reservedRegex.test(classNameFilter.toString())) {\n          classNameFilter = null;\n          throw $animateMinErr('nongcls', '$animateProvider.classNameFilter(regex) prohibits accepting a regex value which matches/contains the \"{0}\" CSS class.', NG_ANIMATE_CLASSNAME);\n        }\n      }\n    }\n    return classNameFilter;\n  };\n\n  this.$get = ['$$animateQueue', function($$animateQueue) {\n    function domInsert(element, parentElement, afterElement) {\n      // if for some reason the previous element was removed\n      // from the dom sometime before this code runs then let's\n      // just stick to using the parent element as the anchor\n      if (afterElement) {\n        var afterNode = extractElementNode(afterElement);\n        if (afterNode && !afterNode.parentNode && !afterNode.previousElementSibling) {\n          afterElement = null;\n        }\n      }\n      if (afterElement) {\n        afterElement.after(element);\n      } else {\n        parentElement.prepend(element);\n      }\n    }\n\n    /**\n     * @ngdoc service\n     * @name $animate\n     * @description The $animate service exposes a series of DOM utility methods that provide support\n     * for animation hooks. The default behavior is the application of DOM operations, however,\n     * when an animation is detected (and animations are enabled), $animate will do the heavy lifting\n     * to ensure that animation runs with the triggered DOM operation.\n     *\n     * By default $animate doesn't trigger any animations. This is because the `ngAnimate` module isn't\n     * included and only when it is active then the animation hooks that `$animate` triggers will be\n     * functional. Once active then all structural `ng-` directives will trigger animations as they perform\n     * their DOM-related operations (enter, leave and move). Other directives such as `ngClass`,\n     * `ngShow`, `ngHide` and `ngMessages` also provide support for animations.\n     *\n     * It is recommended that the`$animate` service is always used when executing DOM-related procedures within directives.\n     *\n     * To learn more about enabling animation support, click here to visit the\n     * {@link ngAnimate ngAnimate module page}.\n     */\n    return {\n      // we don't call it directly since non-existant arguments may\n      // be interpreted as null within the sub enabled function\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#on\n       * @kind function\n       * @description Sets up an event listener to fire whenever the animation event (enter, leave, move, etc...)\n       *    has fired on the given element or among any of its children. Once the listener is fired, the provided callback\n       *    is fired with the following params:\n       *\n       * ```js\n       * $animate.on('enter', container,\n       *    function callback(element, phase) {\n       *      // cool we detected an enter animation within the container\n       *    }\n       * );\n       * ```\n       *\n       * @param {string} event the animation event that will be captured (e.g. enter, leave, move, addClass, removeClass, etc...)\n       * @param {DOMElement} container the container element that will capture each of the animation events that are fired on itself\n       *     as well as among its children\n       * @param {Function} callback the callback function that will be fired when the listener is triggered\n       *\n       * The arguments present in the callback function are:\n       * * `element` - The captured DOM element that the animation was fired on.\n       * * `phase` - The phase of the animation. The two possible phases are **start** (when the animation starts) and **close** (when it ends).\n       */\n      on: $$animateQueue.on,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#off\n       * @kind function\n       * @description Deregisters an event listener based on the event which has been associated with the provided element. This method\n       * can be used in three different ways depending on the arguments:\n       *\n       * ```js\n       * // remove all the animation event listeners listening for `enter`\n       * $animate.off('enter');\n       *\n       * // remove listeners for all animation events from the container element\n       * $animate.off(container);\n       *\n       * // remove all the animation event listeners listening for `enter` on the given element and its children\n       * $animate.off('enter', container);\n       *\n       * // remove the event listener function provided by `callback` that is set\n       * // to listen for `enter` on the given `container` as well as its children\n       * $animate.off('enter', container, callback);\n       * ```\n       *\n       * @param {string|DOMElement} event|container the animation event (e.g. enter, leave, move,\n       * addClass, removeClass, etc...), or the container element. If it is the element, all other\n       * arguments are ignored.\n       * @param {DOMElement=} container the container element the event listener was placed on\n       * @param {Function=} callback the callback function that was registered as the listener\n       */\n      off: $$animateQueue.off,\n\n      /**\n       * @ngdoc method\n       * @name $animate#pin\n       * @kind function\n       * @description Associates the provided element with a host parent element to allow the element to be animated even if it exists\n       *    outside of the DOM structure of the AngularJS application. By doing so, any animation triggered via `$animate` can be issued on the\n       *    element despite being outside the realm of the application or within another application. Say for example if the application\n       *    was bootstrapped on an element that is somewhere inside of the `<body>` tag, but we wanted to allow for an element to be situated\n       *    as a direct child of `document.body`, then this can be achieved by pinning the element via `$animate.pin(element)`. Keep in mind\n       *    that calling `$animate.pin(element, parentElement)` will not actually insert into the DOM anywhere; it will just create the association.\n       *\n       *    Note that this feature is only active when the `ngAnimate` module is used.\n       *\n       * @param {DOMElement} element the external element that will be pinned\n       * @param {DOMElement} parentElement the host parent element that will be associated with the external element\n       */\n      pin: $$animateQueue.pin,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enabled\n       * @kind function\n       * @description Used to get and set whether animations are enabled or not on the entire application or on an element and its children. This\n       * function can be called in four ways:\n       *\n       * ```js\n       * // returns true or false\n       * $animate.enabled();\n       *\n       * // changes the enabled state for all animations\n       * $animate.enabled(false);\n       * $animate.enabled(true);\n       *\n       * // returns true or false if animations are enabled for an element\n       * $animate.enabled(element);\n       *\n       * // changes the enabled state for an element and its children\n       * $animate.enabled(element, true);\n       * $animate.enabled(element, false);\n       * ```\n       *\n       * @param {DOMElement=} element the element that will be considered for checking/setting the enabled state\n       * @param {boolean=} enabled whether or not the animations will be enabled for the element\n       *\n       * @return {boolean} whether or not animations are enabled\n       */\n      enabled: $$animateQueue.enabled,\n\n      /**\n       * @ngdoc method\n       * @name $animate#cancel\n       * @kind function\n       * @description Cancels the provided animation.\n       *\n       * @param {Promise} animationPromise The animation promise that is returned when an animation is started.\n       */\n      cancel: function(runner) {\n        if (runner.end) {\n          runner.end();\n        }\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enter\n       * @kind function\n       * @description Inserts the element into the DOM either after the `after` element (if provided) or\n       *   as the first child within the `parent` element and then triggers an animation.\n       *   A promise is returned that will be resolved during the next digest once the animation\n       *   has completed.\n       *\n       * @param {DOMElement} element the element which will be inserted into the DOM\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      enter: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'enter', prepareAnimateOptions(options));\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#move\n       * @kind function\n       * @description Inserts (moves) the element into its new position in the DOM either after\n       *   the `after` element (if provided) or as the first child within the `parent` element\n       *   and then triggers an animation. A promise is returned that will be resolved\n       *   during the next digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be moved into the new DOM position\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      move: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'move', prepareAnimateOptions(options));\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#leave\n       * @kind function\n       * @description Triggers an animation and then removes the element from the DOM.\n       * When the function is called a promise is returned that will be resolved during the next\n       * digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be removed from the DOM\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      leave: function(element, options) {\n        return $$animateQueue.push(element, 'leave', prepareAnimateOptions(options), function() {\n          element.remove();\n        });\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#addClass\n       * @kind function\n       *\n       * @description Triggers an addClass animation surrounding the addition of the provided CSS class(es). Upon\n       *   execution, the addClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element already contains the CSS class or if the class is removed at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      addClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addclass, className);\n        return $$animateQueue.push(element, 'addClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#removeClass\n       * @kind function\n       *\n       * @description Triggers a removeClass animation surrounding the removal of the provided CSS class(es). Upon\n       *   execution, the removeClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element does not contain the CSS class or if the class is added at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      removeClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.removeClass = mergeClasses(options.removeClass, className);\n        return $$animateQueue.push(element, 'removeClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#setClass\n       * @kind function\n       *\n       * @description Performs both the addition and removal of a CSS classes on an element and (during the process)\n       *    triggers an animation surrounding the class addition/removal. Much like `$animate.addClass` and\n       *    `$animate.removeClass`, `setClass` will only evaluate the classes being added/removed once a digest has\n       *    passed. Note that class-based animations are treated differently compared to structural animations\n       *    (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *    depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} add the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {string} remove the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      setClass: function(element, add, remove, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addClass, add);\n        options.removeClass = mergeClasses(options.removeClass, remove);\n        return $$animateQueue.push(element, 'setClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#animate\n       * @kind function\n       *\n       * @description Performs an inline animation on the element which applies the provided to and from CSS styles to the element.\n       * If any detected CSS transition, keyframe or JavaScript matches the provided className value, then the animation will take\n       * on the provided styles. For example, if a transition animation is set for the given className, then the provided `from` and\n       * `to` styles will be applied alongside the given transition. If the CSS style provided in `from` does not have a corresponding\n       * style in `to`, the style in `from` is applied immediately, and no animation is run.\n       * If a JavaScript animation is detected then the provided styles will be given in as function parameters into the `animate`\n       * method (or as part of the `options` parameter):\n       *\n       * ```js\n       * ngModule.animation('.my-inline-animation', function() {\n       *   return {\n       *     animate : function(element, from, to, done, options) {\n       *       //animation\n       *       done();\n       *     }\n       *   }\n       * });\n       * ```\n       *\n       * @param {DOMElement} element the element which the CSS styles will be applied to\n       * @param {object} from the from (starting) CSS styles that will be applied to the element and across the animation.\n       * @param {object} to the to (destination) CSS styles that will be applied to the element and across the animation.\n       * @param {string=} className an optional CSS class that will be applied to the element for the duration of the animation. If\n       *    this value is left as empty then a CSS class of `ng-inline-animate` will be applied to the element.\n       *    (Note that if no animation is detected then this value will not be applied to the element.)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Promise} the animation callback promise\n       */\n      animate: function(element, from, to, className, options) {\n        options = prepareAnimateOptions(options);\n        options.from = options.from ? extend(options.from, from) : from;\n        options.to   = options.to   ? extend(options.to, to)     : to;\n\n        className = className || 'ng-inline-animate';\n        options.tempClasses = mergeClasses(options.tempClasses, className);\n        return $$animateQueue.push(element, 'animate', options);\n      }\n    };\n  }];\n}];\n\nvar $$AnimateAsyncRunFactoryProvider = /** @this */ function() {\n  this.$get = ['$$rAF', function($$rAF) {\n    var waitQueue = [];\n\n    function waitForTick(fn) {\n      waitQueue.push(fn);\n      if (waitQueue.length > 1) return;\n      $$rAF(function() {\n        for (var i = 0; i < waitQueue.length; i++) {\n          waitQueue[i]();\n        }\n        waitQueue = [];\n      });\n    }\n\n    return function() {\n      var passed = false;\n      waitForTick(function() {\n        passed = true;\n      });\n      return function(callback) {\n        if (passed) {\n          callback();\n        } else {\n          waitForTick(callback);\n        }\n      };\n    };\n  }];\n};\n\nvar $$AnimateRunnerFactoryProvider = /** @this */ function() {\n  this.$get = ['$q', '$sniffer', '$$animateAsyncRun', '$$isDocumentHidden', '$timeout',\n       function($q,   $sniffer,   $$animateAsyncRun,   $$isDocumentHidden,   $timeout) {\n\n    var INITIAL_STATE = 0;\n    var DONE_PENDING_STATE = 1;\n    var DONE_COMPLETE_STATE = 2;\n\n    AnimateRunner.chain = function(chain, callback) {\n      var index = 0;\n\n      next();\n      function next() {\n        if (index === chain.length) {\n          callback(true);\n          return;\n        }\n\n        chain[index](function(response) {\n          if (response === false) {\n            callback(false);\n            return;\n          }\n          index++;\n          next();\n        });\n      }\n    };\n\n    AnimateRunner.all = function(runners, callback) {\n      var count = 0;\n      var status = true;\n      forEach(runners, function(runner) {\n        runner.done(onProgress);\n      });\n\n      function onProgress(response) {\n        status = status && response;\n        if (++count === runners.length) {\n          callback(status);\n        }\n      }\n    };\n\n    function AnimateRunner(host) {\n      this.setHost(host);\n\n      var rafTick = $$animateAsyncRun();\n      var timeoutTick = function(fn) {\n        $timeout(fn, 0, false);\n      };\n\n      this._doneCallbacks = [];\n      this._tick = function(fn) {\n        if ($$isDocumentHidden()) {\n          timeoutTick(fn);\n        } else {\n          rafTick(fn);\n        }\n      };\n      this._state = 0;\n    }\n\n    AnimateRunner.prototype = {\n      setHost: function(host) {\n        this.host = host || {};\n      },\n\n      done: function(fn) {\n        if (this._state === DONE_COMPLETE_STATE) {\n          fn();\n        } else {\n          this._doneCallbacks.push(fn);\n        }\n      },\n\n      progress: noop,\n\n      getPromise: function() {\n        if (!this.promise) {\n          var self = this;\n          this.promise = $q(function(resolve, reject) {\n            self.done(function(status) {\n              if (status === false) {\n                reject();\n              } else {\n                resolve();\n              }\n            });\n          });\n        }\n        return this.promise;\n      },\n\n      then: function(resolveHandler, rejectHandler) {\n        return this.getPromise().then(resolveHandler, rejectHandler);\n      },\n\n      'catch': function(handler) {\n        return this.getPromise()['catch'](handler);\n      },\n\n      'finally': function(handler) {\n        return this.getPromise()['finally'](handler);\n      },\n\n      pause: function() {\n        if (this.host.pause) {\n          this.host.pause();\n        }\n      },\n\n      resume: function() {\n        if (this.host.resume) {\n          this.host.resume();\n        }\n      },\n\n      end: function() {\n        if (this.host.end) {\n          this.host.end();\n        }\n        this._resolve(true);\n      },\n\n      cancel: function() {\n        if (this.host.cancel) {\n          this.host.cancel();\n        }\n        this._resolve(false);\n      },\n\n      complete: function(response) {\n        var self = this;\n        if (self._state === INITIAL_STATE) {\n          self._state = DONE_PENDING_STATE;\n          self._tick(function() {\n            self._resolve(response);\n          });\n        }\n      },\n\n      _resolve: function(response) {\n        if (this._state !== DONE_COMPLETE_STATE) {\n          forEach(this._doneCallbacks, function(fn) {\n            fn(response);\n          });\n          this._doneCallbacks.length = 0;\n          this._state = DONE_COMPLETE_STATE;\n        }\n      }\n    };\n\n    return AnimateRunner;\n  }];\n};\n\n/* exported $CoreAnimateCssProvider */\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n * @this\n *\n * @description\n * This is the core version of `$animateCss`. By default, only when the `ngAnimate` is included,\n * then the `$animateCss` service will actually perform animations.\n *\n * Click here {@link ngAnimate.$animateCss to read the documentation for $animateCss}.\n */\nvar $CoreAnimateCssProvider = function() {\n  this.$get = ['$$rAF', '$q', '$$AnimateRunner', function($$rAF, $q, $$AnimateRunner) {\n\n    return function(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = copy(options);\n      }\n\n      // there is no point in applying the styles since\n      // there is no animation that goes on at all in\n      // this version of $animateCss.\n      if (options.cleanupStyles) {\n        options.from = options.to = null;\n      }\n\n      if (options.from) {\n        element.css(options.from);\n        options.from = null;\n      }\n\n      var closed, runner = new $$AnimateRunner();\n      return {\n        start: run,\n        end: run\n      };\n\n      function run() {\n        $$rAF(function() {\n          applyAnimationContents();\n          if (!closed) {\n            runner.complete();\n          }\n          closed = true;\n        });\n        return runner;\n      }\n\n      function applyAnimationContents() {\n        if (options.addClass) {\n          element.addClass(options.addClass);\n          options.addClass = null;\n        }\n        if (options.removeClass) {\n          element.removeClass(options.removeClass);\n          options.removeClass = null;\n        }\n        if (options.to) {\n          element.css(options.to);\n          options.to = null;\n        }\n      }\n    };\n  }];\n};\n\n/* global stripHash: true */\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n * @requires $log\n * @description\n * This object has two goals:\n *\n * - hide all the global state in the browser caused by the window object\n * - abstract away all the browser specific features and inconsistencies\n *\n * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`\n * service, which can be used for convenient testing of the application without the interaction with\n * the real browser apis.\n */\n/**\n * @param {object} window The global window object.\n * @param {object} document jQuery wrapped document.\n * @param {object} $log window.console or an object with the same interface.\n * @param {object} $sniffer $sniffer service\n */\nfunction Browser(window, document, $log, $sniffer) {\n  var self = this,\n      location = window.location,\n      history = window.history,\n      setTimeout = window.setTimeout,\n      clearTimeout = window.clearTimeout,\n      pendingDeferIds = {};\n\n  self.isMock = false;\n\n  var outstandingRequestCount = 0;\n  var outstandingRequestCallbacks = [];\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = completeOutstandingRequest;\n  self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };\n\n  /**\n   * Executes the `fn` function(supports currying) and decrements the `outstandingRequestCallbacks`\n   * counter. If the counter reaches 0, all the `outstandingRequestCallbacks` are executed.\n   */\n  function completeOutstandingRequest(fn) {\n    try {\n      fn.apply(null, sliceArgs(arguments, 1));\n    } finally {\n      outstandingRequestCount--;\n      if (outstandingRequestCount === 0) {\n        while (outstandingRequestCallbacks.length) {\n          try {\n            outstandingRequestCallbacks.pop()();\n          } catch (e) {\n            $log.error(e);\n          }\n        }\n      }\n    }\n  }\n\n  function getHash(url) {\n    var index = url.indexOf('#');\n    return index === -1 ? '' : url.substr(index);\n  }\n\n  /**\n   * @private\n   * TODO(vojta): prefix this method with $$ ?\n   * @param {function()} callback Function that will be called when no outstanding request\n   */\n  self.notifyWhenNoOutstandingRequests = function(callback) {\n    if (outstandingRequestCount === 0) {\n      callback();\n    } else {\n      outstandingRequestCallbacks.push(callback);\n    }\n  };\n\n  //////////////////////////////////////////////////////////////\n  // URL API\n  //////////////////////////////////////////////////////////////\n\n  var cachedState, lastHistoryState,\n      lastBrowserUrl = location.href,\n      baseElement = document.find('base'),\n      pendingLocation = null,\n      getCurrentState = !$sniffer.history ? noop : function getCurrentState() {\n        try {\n          return history.state;\n        } catch (e) {\n          // MSIE can reportedly throw when there is no state (UNCONFIRMED).\n        }\n      };\n\n  cacheState();\n\n  /**\n   * @name $browser#url\n   *\n   * @description\n   * GETTER:\n   * Without any argument, this method just returns current value of location.href.\n   *\n   * SETTER:\n   * With at least one argument, this method sets url to new value.\n   * If html5 history api supported, pushState/replaceState is used, otherwise\n   * location.href/location.replace is used.\n   * Returns its own instance to allow chaining\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to change url.\n   *\n   * @param {string} url New url (when used as setter)\n   * @param {boolean=} replace Should new url replace current history record?\n   * @param {object=} state object to use with pushState/replaceState\n   */\n  self.url = function(url, replace, state) {\n    // In modern browsers `history.state` is `null` by default; treating it separately\n    // from `undefined` would cause `$browser.url('/foo')` to change `history.state`\n    // to undefined via `pushState`. Instead, let's change `undefined` to `null` here.\n    if (isUndefined(state)) {\n      state = null;\n    }\n\n    // Android Browser BFCache causes location, history reference to become stale.\n    if (location !== window.location) location = window.location;\n    if (history !== window.history) history = window.history;\n\n    // setter\n    if (url) {\n      var sameState = lastHistoryState === state;\n\n      // Don't change anything if previous and current URLs and states match. This also prevents\n      // IE<10 from getting into redirect loop when in LocationHashbangInHtml5Url mode.\n      // See https://github.com/angular/angular.js/commit/ffb2701\n      if (lastBrowserUrl === url && (!$sniffer.history || sameState)) {\n        return self;\n      }\n      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);\n      lastBrowserUrl = url;\n      lastHistoryState = state;\n      // Don't use history API if only the hash changed\n      // due to a bug in IE10/IE11 which leads\n      // to not firing a `hashchange` nor `popstate` event\n      // in some cases (see #9143).\n      if ($sniffer.history && (!sameBase || !sameState)) {\n        history[replace ? 'replaceState' : 'pushState'](state, '', url);\n        cacheState();\n      } else {\n        if (!sameBase) {\n          pendingLocation = url;\n        }\n        if (replace) {\n          location.replace(url);\n        } else if (!sameBase) {\n          location.href = url;\n        } else {\n          location.hash = getHash(url);\n        }\n        if (location.href !== url) {\n          pendingLocation = url;\n        }\n      }\n      if (pendingLocation) {\n        pendingLocation = url;\n      }\n      return self;\n    // getter\n    } else {\n      // - pendingLocation is needed as browsers don't allow to read out\n      //   the new location.href if a reload happened or if there is a bug like in iOS 9 (see\n      //   https://openradar.appspot.com/22186109).\n      // - the replacement is a workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=407172\n      return pendingLocation || location.href.replace(/%27/g,'\\'');\n    }\n  };\n\n  /**\n   * @name $browser#state\n   *\n   * @description\n   * This method is a getter.\n   *\n   * Return history.state or null if history.state is undefined.\n   *\n   * @returns {object} state\n   */\n  self.state = function() {\n    return cachedState;\n  };\n\n  var urlChangeListeners = [],\n      urlChangeInit = false;\n\n  function cacheStateAndFireUrlChange() {\n    pendingLocation = null;\n    fireStateOrUrlChange();\n  }\n\n  // This variable should be used *only* inside the cacheState function.\n  var lastCachedState = null;\n  function cacheState() {\n    // This should be the only place in $browser where `history.state` is read.\n    cachedState = getCurrentState();\n    cachedState = isUndefined(cachedState) ? null : cachedState;\n\n    // Prevent callbacks fo fire twice if both hashchange & popstate were fired.\n    if (equals(cachedState, lastCachedState)) {\n      cachedState = lastCachedState;\n    }\n\n    lastCachedState = cachedState;\n    lastHistoryState = cachedState;\n  }\n\n  function fireStateOrUrlChange() {\n    var prevLastHistoryState = lastHistoryState;\n    cacheState();\n\n    if (lastBrowserUrl === self.url() && prevLastHistoryState === cachedState) {\n      return;\n    }\n\n    lastBrowserUrl = self.url();\n    lastHistoryState = cachedState;\n    forEach(urlChangeListeners, function(listener) {\n      listener(self.url(), cachedState);\n    });\n  }\n\n  /**\n   * @name $browser#onUrlChange\n   *\n   * @description\n   * Register callback function that will be called, when url changes.\n   *\n   * It's only called when the url is changed from outside of AngularJS:\n   * - user types different url into address bar\n   * - user clicks on history (forward/back) button\n   * - user clicks on a link\n   *\n   * It's not called when url is changed by $browser.url() method\n   *\n   * The listener gets called with new url as parameter.\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to monitor url changes in AngularJS apps.\n   *\n   * @param {function(string)} listener Listener function to be called when url changes.\n   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.\n   */\n  self.onUrlChange = function(callback) {\n    // TODO(vojta): refactor to use node's syntax for events\n    if (!urlChangeInit) {\n      // We listen on both (hashchange/popstate) when available, as some browsers don't\n      // fire popstate when user changes the address bar and don't fire hashchange when url\n      // changed by push/replaceState\n\n      // html5 history api - popstate event\n      if ($sniffer.history) jqLite(window).on('popstate', cacheStateAndFireUrlChange);\n      // hashchange event\n      jqLite(window).on('hashchange', cacheStateAndFireUrlChange);\n\n      urlChangeInit = true;\n    }\n\n    urlChangeListeners.push(callback);\n    return callback;\n  };\n\n  /**\n   * @private\n   * Remove popstate and hashchange handler from window.\n   *\n   * NOTE: this api is intended for use only by $rootScope.\n   */\n  self.$$applicationDestroyed = function() {\n    jqLite(window).off('hashchange popstate', cacheStateAndFireUrlChange);\n  };\n\n  /**\n   * Checks whether the url has changed outside of AngularJS.\n   * Needs to be exported to be able to check for changes that have been done in sync,\n   * as hashchange/popstate events fire in async.\n   */\n  self.$$checkUrlChange = fireStateOrUrlChange;\n\n  //////////////////////////////////////////////////////////////\n  // Misc API\n  //////////////////////////////////////////////////////////////\n\n  /**\n   * @name $browser#baseHref\n   *\n   * @description\n   * Returns current <base href>\n   * (always relative - without domain)\n   *\n   * @returns {string} The current base href\n   */\n  self.baseHref = function() {\n    var href = baseElement.attr('href');\n    return href ? href.replace(/^(https?:)?\\/\\/[^/]*/, '') : '';\n  };\n\n  /**\n   * @name $browser#defer\n   * @param {function()} fn A function, who's execution should be deferred.\n   * @param {number=} [delay=0] of milliseconds to defer the function execution.\n   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.\n   *\n   * @description\n   * Executes a fn asynchronously via `setTimeout(fn, delay)`.\n   *\n   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using\n   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed\n   * via `$browser.defer.flush()`.\n   *\n   */\n  self.defer = function(fn, delay) {\n    var timeoutId;\n    outstandingRequestCount++;\n    timeoutId = setTimeout(function() {\n      delete pendingDeferIds[timeoutId];\n      completeOutstandingRequest(fn);\n    }, delay || 0);\n    pendingDeferIds[timeoutId] = true;\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.cancel\n   *\n   * @description\n   * Cancels a deferred task identified with `deferId`.\n   *\n   * @param {*} deferId Token returned by the `$browser.defer` function.\n   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n   *                    canceled.\n   */\n  self.defer.cancel = function(deferId) {\n    if (pendingDeferIds[deferId]) {\n      delete pendingDeferIds[deferId];\n      clearTimeout(deferId);\n      completeOutstandingRequest(noop);\n      return true;\n    }\n    return false;\n  };\n\n}\n\n/** @this */\nfunction $BrowserProvider() {\n  this.$get = ['$window', '$log', '$sniffer', '$document',\n      function($window, $log, $sniffer, $document) {\n        return new Browser($window, $document, $log, $sniffer);\n      }];\n}\n\n/**\n * @ngdoc service\n * @name $cacheFactory\n * @this\n *\n * @description\n * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to\n * them.\n *\n * ```js\n *\n *  var cache = $cacheFactory('cacheId');\n *  expect($cacheFactory.get('cacheId')).toBe(cache);\n *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();\n *\n *  cache.put(\"key\", \"value\");\n *  cache.put(\"another key\", \"another value\");\n *\n *  // We've specified no options on creation\n *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});\n *\n * ```\n *\n *\n * @param {string} cacheId Name or id of the newly created cache.\n * @param {object=} options Options object that specifies the cache behavior. Properties:\n *\n *   - `{number=}` `capacity` — turns the cache into LRU cache.\n *\n * @returns {object} Newly created cache object with the following set of methods:\n *\n * - `{object}` `info()` — Returns id, size, and options of cache.\n * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns\n *   it.\n * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.\n * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.\n * - `{void}` `removeAll()` — Removes all cached values.\n * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.\n *\n * @example\n   <example module=\"cacheExampleApp\" name=\"cache-factory\">\n     <file name=\"index.html\">\n       <div ng-controller=\"CacheController\">\n         <input ng-model=\"newCacheKey\" placeholder=\"Key\">\n         <input ng-model=\"newCacheValue\" placeholder=\"Value\">\n         <button ng-click=\"put(newCacheKey, newCacheValue)\">Cache</button>\n\n         <p ng-if=\"keys.length\">Cached Values</p>\n         <div ng-repeat=\"key in keys\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"cache.get(key)\"></b>\n         </div>\n\n         <p>Cache Info</p>\n         <div ng-repeat=\"(key, value) in cache.info()\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"value\"></b>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('cacheExampleApp', []).\n         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {\n           $scope.keys = [];\n           $scope.cache = $cacheFactory('cacheId');\n           $scope.put = function(key, value) {\n             if (angular.isUndefined($scope.cache.get(key))) {\n               $scope.keys.push(key);\n             }\n             $scope.cache.put(key, angular.isUndefined(value) ? null : value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       p {\n         margin: 10px 0 3px;\n       }\n     </file>\n   </example>\n */\nfunction $CacheFactoryProvider() {\n\n  this.$get = function() {\n    var caches = {};\n\n    function cacheFactory(cacheId, options) {\n      if (cacheId in caches) {\n        throw minErr('$cacheFactory')('iid', 'CacheId \\'{0}\\' is already taken!', cacheId);\n      }\n\n      var size = 0,\n          stats = extend({}, options, {id: cacheId}),\n          data = createMap(),\n          capacity = (options && options.capacity) || Number.MAX_VALUE,\n          lruHash = createMap(),\n          freshEnd = null,\n          staleEnd = null;\n\n      /**\n       * @ngdoc type\n       * @name $cacheFactory.Cache\n       *\n       * @description\n       * A cache object used to store and retrieve data, primarily used by\n       * {@link $templateRequest $templateRequest} and the {@link ng.directive:script script}\n       * directive to cache templates and other data.\n       *\n       * ```js\n       *  angular.module('superCache')\n       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {\n       *      return $cacheFactory('super-cache');\n       *    }]);\n       * ```\n       *\n       * Example test:\n       *\n       * ```js\n       *  it('should behave like a cache', inject(function(superCache) {\n       *    superCache.put('key', 'value');\n       *    superCache.put('another key', 'another value');\n       *\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 2\n       *    });\n       *\n       *    superCache.remove('another key');\n       *    expect(superCache.get('another key')).toBeUndefined();\n       *\n       *    superCache.removeAll();\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 0\n       *    });\n       *  }));\n       * ```\n       */\n      return (caches[cacheId] = {\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#put\n         * @kind function\n         *\n         * @description\n         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be\n         * retrieved later, and incrementing the size of the cache if the key was not already\n         * present in the cache. If behaving like an LRU cache, it will also remove stale\n         * entries from the set.\n         *\n         * It will not insert undefined values into the cache.\n         *\n         * @param {string} key the key under which the cached data is stored.\n         * @param {*} value the value to store alongside the key. If it is undefined, the key\n         *    will not be stored.\n         * @returns {*} the value stored.\n         */\n        put: function(key, value) {\n          if (isUndefined(value)) return;\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});\n\n            refresh(lruEntry);\n          }\n\n          if (!(key in data)) size++;\n          data[key] = value;\n\n          if (size > capacity) {\n            this.remove(staleEnd.key);\n          }\n\n          return value;\n        },\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#get\n         * @kind function\n         *\n         * @description\n         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the data to be retrieved\n         * @returns {*} the value stored.\n         */\n        get: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            refresh(lruEntry);\n          }\n\n          return data[key];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#remove\n         * @kind function\n         *\n         * @description\n         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the entry to be removed\n         */\n        remove: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            if (lruEntry === freshEnd) freshEnd = lruEntry.p;\n            if (lruEntry === staleEnd) staleEnd = lruEntry.n;\n            link(lruEntry.n,lruEntry.p);\n\n            delete lruHash[key];\n          }\n\n          if (!(key in data)) return;\n\n          delete data[key];\n          size--;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#removeAll\n         * @kind function\n         *\n         * @description\n         * Clears the cache object of any entries.\n         */\n        removeAll: function() {\n          data = createMap();\n          size = 0;\n          lruHash = createMap();\n          freshEnd = staleEnd = null;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#destroy\n         * @kind function\n         *\n         * @description\n         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,\n         * removing it from the {@link $cacheFactory $cacheFactory} set.\n         */\n        destroy: function() {\n          data = null;\n          stats = null;\n          lruHash = null;\n          delete caches[cacheId];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#info\n         * @kind function\n         *\n         * @description\n         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.\n         *\n         * @returns {object} an object with the following properties:\n         *   <ul>\n         *     <li>**id**: the id of the cache instance</li>\n         *     <li>**size**: the number of entries kept in the cache instance</li>\n         *     <li>**...**: any additional properties from the options object when creating the\n         *       cache.</li>\n         *   </ul>\n         */\n        info: function() {\n          return extend({}, stats, {size: size});\n        }\n      });\n\n\n      /**\n       * makes the `entry` the freshEnd of the LRU linked list\n       */\n      function refresh(entry) {\n        if (entry !== freshEnd) {\n          if (!staleEnd) {\n            staleEnd = entry;\n          } else if (staleEnd === entry) {\n            staleEnd = entry.n;\n          }\n\n          link(entry.n, entry.p);\n          link(entry, freshEnd);\n          freshEnd = entry;\n          freshEnd.n = null;\n        }\n      }\n\n\n      /**\n       * bidirectionally links two entries of the LRU linked list\n       */\n      function link(nextEntry, prevEntry) {\n        if (nextEntry !== prevEntry) {\n          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify\n          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify\n        }\n      }\n    }\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#info\n   *\n   * @description\n   * Get information about all the caches that have been created\n   *\n   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`\n   */\n    cacheFactory.info = function() {\n      var info = {};\n      forEach(caches, function(cache, cacheId) {\n        info[cacheId] = cache.info();\n      });\n      return info;\n    };\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#get\n   *\n   * @description\n   * Get access to a cache object by the `cacheId` used when it was created.\n   *\n   * @param {string} cacheId Name or id of a cache to access.\n   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.\n   */\n    cacheFactory.get = function(cacheId) {\n      return caches[cacheId];\n    };\n\n\n    return cacheFactory;\n  };\n}\n\n/**\n * @ngdoc service\n * @name $templateCache\n * @this\n *\n * @description\n * `$templateCache` is a {@link $cacheFactory.Cache Cache object} created by the\n * {@link ng.$cacheFactory $cacheFactory}.\n *\n * The first time a template is used, it is loaded in the template cache for quick retrieval. You\n * can load templates directly into the cache in a `script` tag, by using {@link $templateRequest},\n * or by consuming the `$templateCache` service directly.\n *\n * Adding via the `script` tag:\n *\n * ```html\n *   <script type=\"text/ng-template\" id=\"templateId.html\">\n *     <p>This is the content of the template</p>\n *   </script>\n * ```\n *\n * **Note:** the `script` tag containing the template does not need to be included in the `head` of\n * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (e.g.\n * element with {@link ngApp} attribute), otherwise the template will be ignored.\n *\n * Adding via the `$templateCache` service:\n *\n * ```js\n * var myApp = angular.module('myApp', []);\n * myApp.run(function($templateCache) {\n *   $templateCache.put('templateId.html', 'This is the content of the template');\n * });\n * ```\n *\n * To retrieve the template later, simply use it in your component:\n * ```js\n * myApp.component('myComponent', {\n *    templateUrl: 'templateId.html'\n * });\n * ```\n *\n * or get it via the `$templateCache` service:\n * ```js\n * $templateCache.get('templateId.html')\n * ```\n *\n */\nfunction $TemplateCacheProvider() {\n  this.$get = ['$cacheFactory', function($cacheFactory) {\n    return $cacheFactory('templates');\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables like document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!\n *\n * DOM-related variables:\n *\n * - \"node\" - DOM Node\n * - \"element\" - DOM Element or Node\n * - \"$node\" or \"$element\" - jqLite-wrapped node or element\n *\n *\n * Compiler related stuff:\n *\n * - \"linkFn\" - linking fn of a single directive\n * - \"nodeLinkFn\" - function that aggregates all linking fns for a particular node\n * - \"childLinkFn\" -  function that aggregates all linking fns for child nodes of a particular node\n * - \"compositeLinkFn\" - function that aggregates all linking fns for a compilation root (nodeList)\n */\n\n\n/**\n * @ngdoc service\n * @name $compile\n * @kind function\n *\n * @description\n * Compiles an HTML string or DOM into a template and produces a template function, which\n * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.\n *\n * The compilation is a process of walking the DOM tree and matching DOM elements to\n * {@link ng.$compileProvider#directive directives}.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** This document is an in-depth reference of all directive options.\n * For a gentle introduction to directives with examples of common use cases,\n * see the {@link guide/directive directive guide}.\n * </div>\n *\n * ## Comprehensive Directive API\n *\n * There are many different options for a directive.\n *\n * The difference resides in the return value of the factory function.\n * You can either return a {@link $compile#directive-definition-object Directive Definition Object (see below)}\n * that defines the directive properties, or just the `postLink` function (all other properties will have\n * the default values).\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's recommended to use the \"directive definition object\" form.\n * </div>\n *\n * Here's an example directive declared with a Directive Definition Object:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       {@link $compile#-priority- priority}: 0,\n *       {@link $compile#-template- template}: '<div></div>', // or // function(tElement, tAttrs) { ... },\n *       // or\n *       // {@link $compile#-templateurl- templateUrl}: 'directive.html', // or // function(tElement, tAttrs) { ... },\n *       {@link $compile#-transclude- transclude}: false,\n *       {@link $compile#-restrict- restrict}: 'A',\n *       {@link $compile#-templatenamespace- templateNamespace}: 'html',\n *       {@link $compile#-scope- scope}: false,\n *       {@link $compile#-controller- controller}: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },\n *       {@link $compile#-controlleras- controllerAs}: 'stringIdentifier',\n *       {@link $compile#-bindtocontroller- bindToController}: false,\n *       {@link $compile#-require- require}: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],\n *       {@link $compile#-multielement- multiElement}: false,\n *       {@link $compile#-compile- compile}: function compile(tElement, tAttrs, transclude) {\n *         return {\n *            {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *            {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *         }\n *         // or\n *         // return function postLink( ... ) { ... }\n *       },\n *       // or\n *       // {@link $compile#-link- link}: {\n *       //  {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *       //  {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *       // }\n *       // or\n *       // {@link $compile#-link- link}: function postLink( ... ) { ... }\n *     };\n *     return directiveDefinitionObject;\n *   });\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Any unspecified options will use the default value. You can see the default values below.\n * </div>\n *\n * Therefore the above can be simplified as:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       link: function postLink(scope, iElement, iAttrs) { ... }\n *     };\n *     return directiveDefinitionObject;\n *     // or\n *     // return function postLink(scope, iElement, iAttrs) { ... }\n *   });\n * ```\n *\n * ### Life-cycle hooks\n * Directive controllers can provide the following methods that are called by AngularJS at points in the life-cycle of the\n * directive:\n * * `$onInit()` - Called on each controller after all the controllers on an element have been constructed and\n *   had their bindings initialized (and before the pre &amp; post linking functions for the directives on\n *   this element). This is a good place to put initialization code for your controller.\n * * `$onChanges(changesObj)` - Called whenever one-way (`<`) or interpolation (`@`) bindings are updated. The\n *   `changesObj` is a hash whose keys are the names of the bound properties that have changed, and the values are an\n *   object of the form `{ currentValue, previousValue, isFirstChange() }`. Use this hook to trigger updates within a\n *   component such as cloning the bound value to prevent accidental mutation of the outer value. Note that this will\n *   also be called when your bindings are initialized.\n * * `$doCheck()` - Called on each turn of the digest cycle. Provides an opportunity to detect and act on\n *   changes. Any actions that you wish to take in response to the changes that you detect must be\n *   invoked from this hook; implementing this has no effect on when `$onChanges` is called. For example, this hook\n *   could be useful if you wish to perform a deep equality check, or to check a Date object, changes to which would not\n *   be detected by AngularJS's change detector and thus not trigger `$onChanges`. This hook is invoked with no arguments;\n *   if detecting changes, you must store the previous value(s) for comparison to the current values.\n * * `$onDestroy()` - Called on a controller when its containing scope is destroyed. Use this hook for releasing\n *   external resources, watches and event handlers. Note that components have their `$onDestroy()` hooks called in\n *   the same order as the `$scope.$broadcast` events are triggered, which is top down. This means that parent\n *   components will have their `$onDestroy()` hook called before child components.\n * * `$postLink()` - Called after this controller's element and its children have been linked. Similar to the post-link\n *   function this hook can be used to set up DOM event handlers and do direct DOM manipulation.\n *   Note that child elements that contain `templateUrl` directives will not have been compiled and linked since\n *   they are waiting for their template to load asynchronously and their own compilation and linking has been\n *   suspended until that occurs.\n *\n * #### Comparison with life-cycle hooks in the new Angular\n * The new Angular also uses life-cycle hooks for its components. While the AngularJS life-cycle hooks are similar there are\n * some differences that you should be aware of, especially when it comes to moving your code from AngularJS to Angular:\n *\n * * AngularJS hooks are prefixed with `$`, such as `$onInit`. Angular hooks are prefixed with `ng`, such as `ngOnInit`.\n * * AngularJS hooks can be defined on the controller prototype or added to the controller inside its constructor.\n *   In Angular you can only define hooks on the prototype of the Component class.\n * * Due to the differences in change-detection, you may get many more calls to `$doCheck` in AngularJS than you would to\n *   `ngDoCheck` in Angular.\n * * Changes to the model inside `$doCheck` will trigger new turns of the digest loop, which will cause the changes to be\n *   propagated throughout the application.\n *   Angular does not allow the `ngDoCheck` hook to trigger a change outside of the component. It will either throw an\n *   error or do nothing depending upon the state of `enableProdMode()`.\n *\n * #### Life-cycle hook examples\n *\n * This example shows how you can check for mutations to a Date object even though the identity of the object\n * has not changed.\n *\n * <example name=\"doCheckDateExample\" module=\"do-check-module\">\n *   <file name=\"app.js\">\n *     angular.module('do-check-module', [])\n *       .component('app', {\n *         template:\n *           'Month: <input ng-model=\"$ctrl.month\" ng-change=\"$ctrl.updateDate()\">' +\n *           'Date: {{ $ctrl.date }}' +\n *           '<test date=\"$ctrl.date\"></test>',\n *         controller: function() {\n *           this.date = new Date();\n *           this.month = this.date.getMonth();\n *           this.updateDate = function() {\n *             this.date.setMonth(this.month);\n *           };\n *         }\n *       })\n *       .component('test', {\n *         bindings: { date: '<' },\n *         template:\n *           '<pre>{{ $ctrl.log | json }}</pre>',\n *         controller: function() {\n *           var previousValue;\n *           this.log = [];\n *           this.$doCheck = function() {\n *             var currentValue = this.date && this.date.valueOf();\n *             if (previousValue !== currentValue) {\n *               this.log.push('doCheck: date mutated: ' + this.date);\n *               previousValue = currentValue;\n *             }\n *           };\n *         }\n *       });\n *   </file>\n *   <file name=\"index.html\">\n *     <app></app>\n *   </file>\n * </example>\n *\n * This example show how you might use `$doCheck` to trigger changes in your component's inputs even if the\n * actual identity of the component doesn't change. (Be aware that cloning and deep equality checks on large\n * arrays or objects can have a negative impact on your application performance)\n *\n * <example name=\"doCheckArrayExample\" module=\"do-check-module\">\n *   <file name=\"index.html\">\n *     <div ng-init=\"items = []\">\n *       <button ng-click=\"items.push(items.length)\">Add Item</button>\n *       <button ng-click=\"items = []\">Reset Items</button>\n *       <pre>{{ items }}</pre>\n *       <test items=\"items\"></test>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *      angular.module('do-check-module', [])\n *        .component('test', {\n *          bindings: { items: '<' },\n *          template:\n *            '<pre>{{ $ctrl.log | json }}</pre>',\n *          controller: function() {\n *            this.log = [];\n *\n *            this.$doCheck = function() {\n *              if (this.items_ref !== this.items) {\n *                this.log.push('doCheck: items changed');\n *                this.items_ref = this.items;\n *              }\n *              if (!angular.equals(this.items_clone, this.items)) {\n *                this.log.push('doCheck: items mutated');\n *                this.items_clone = angular.copy(this.items);\n *              }\n *            };\n *          }\n *        });\n *   </file>\n * </example>\n *\n *\n * ### Directive Definition Object\n *\n * The directive definition object provides instructions to the {@link ng.$compile\n * compiler}. The attributes are:\n *\n * #### `multiElement`\n * When this property is set to true (default is `false`), the HTML compiler will collect DOM nodes between\n * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them\n * together as the directive elements. It is recommended that this feature be used on directives\n * which are not strictly behavioral (such as {@link ngClick}), and which\n * do not manipulate or replace child nodes (such as {@link ngInclude}).\n *\n * #### `priority`\n * When there are multiple directives defined on a single DOM element, sometimes it\n * is necessary to specify the order in which the directives are applied. The `priority` is used\n * to sort the directives before their `compile` functions get called. Priority is defined as a\n * number. Directives with greater numerical `priority` are compiled first. Pre-link functions\n * are also run in priority order, but post-link functions are run in reverse order. The order\n * of directives with the same priority is undefined. The default priority is `0`.\n *\n * #### `terminal`\n * If set to true then the current `priority` will be the last set of directives\n * which will execute (any directives at the current priority will still execute\n * as the order of execution on same `priority` is undefined). Note that expressions\n * and other directives used in the directive's template will also be excluded from execution.\n *\n * #### `scope`\n * The scope property can be `false`, `true`, or an object:\n *\n * * **`false` (default):** No scope will be created for the directive. The directive will use its\n * parent's scope.\n *\n * * **`true`:** A new child scope that prototypically inherits from its parent will be created for\n * the directive's element. If multiple directives on the same element request a new scope,\n * only one new scope is created.\n *\n * * **`{...}` (an object hash):** A new \"isolate\" scope is created for the directive's template.\n * The 'isolate' scope differs from normal scope in that it does not prototypically\n * inherit from its parent scope. This is useful when creating reusable components, which should not\n * accidentally read or modify data in the parent scope. Note that an isolate scope\n * directive without a `template` or `templateUrl` will not apply the isolate scope\n * to its children elements.\n *\n * The 'isolate' scope object hash defines a set of local scope properties derived from attributes on the\n * directive's element. These local properties are useful for aliasing values for templates. The keys in\n * the object hash map to the name of the property on the isolate scope; the values define how the property\n * is bound to the parent scope, via matching attributes on the directive's element:\n *\n * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is\n *   always a string since DOM attributes are strings. If no `attr` name is specified then the\n *   attribute name is assumed to be the same as the local name. Given `<my-component\n *   my-attr=\"hello {{name}}\">` and the isolate scope definition `scope: { localName:'@myAttr' }`,\n *   the directive's scope property `localName` will reflect the interpolated value of `hello\n *   {{name}}`. As the `name` attribute changes so will the `localName` property on the directive's\n *   scope. The `name` is read from the parent scope (not the directive's scope).\n *\n * * `=` or `=attr` - set up a bidirectional binding between a local scope property and an expression\n *   passed via the attribute `attr`. The expression is evaluated in the context of the parent scope.\n *   If no `attr` name is specified then the attribute name is assumed to be the same as the local\n *   name. Given `<my-component my-attr=\"parentModel\">` and the isolate scope definition `scope: {\n *   localModel: '=myAttr' }`, the property `localModel` on the directive's scope will reflect the\n *   value of `parentModel` on the parent scope. Changes to `parentModel` will be reflected in\n *   `localModel` and vice versa. Optional attributes should be marked as such with a question mark:\n *   `=?` or `=?attr`. If the binding expression is non-assignable, or if the attribute isn't\n *   optional and doesn't exist, an exception ({@link error/$compile/nonassign `$compile:nonassign`})\n *   will be thrown upon discovering changes to the local value, since it will be impossible to sync\n *   them back to the parent scope. By default, the {@link ng.$rootScope.Scope#$watch `$watch`}\n *   method is used for tracking changes, and the equality check is based on object identity.\n *   However, if an object literal or an array literal is passed as the binding expression, the\n *   equality check is done by value (using the {@link angular.equals} function). It's also possible\n *   to watch the evaluated value shallowly with {@link ng.$rootScope.Scope#$watchCollection\n *   `$watchCollection`}: use `=*` or `=*attr` (`=*?` or `=*?attr` if the attribute is optional).\n *\n  * * `<` or `<attr` - set up a one-way (one-directional) binding between a local scope property and an\n *   expression passed via the attribute `attr`. The expression is evaluated in the context of the\n *   parent scope. If no `attr` name is specified then the attribute name is assumed to be the same as the\n *   local name. You can also make the binding optional by adding `?`: `<?` or `<?attr`.\n *\n *   For example, given `<my-component my-attr=\"parentModel\">` and directive definition of\n *   `scope: { localModel:'<myAttr' }`, then the isolated scope property `localModel` will reflect the\n *   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected\n *   in `localModel`, but changes in `localModel` will not reflect in `parentModel`. There are however\n *   two caveats:\n *     1. one-way binding does not copy the value from the parent to the isolate scope, it simply\n *     sets the same value. That means if your bound value is an object, changes to its properties\n *     in the isolated scope will be reflected in the parent scope (because both reference the same object).\n *     2. one-way binding watches changes to the **identity** of the parent value. That means the\n *     {@link ng.$rootScope.Scope#$watch `$watch`} on the parent value only fires if the reference\n *     to the value has changed. In most cases, this should not be of concern, but can be important\n *     to know if you one-way bind to an object, and then replace that object in the isolated scope.\n *     If you now change a property of the object in your parent scope, the change will not be\n *     propagated to the isolated scope, because the identity of the object on the parent scope\n *     has not changed. Instead you must assign a new object.\n *\n *   One-way binding is useful if you do not plan to propagate changes to your isolated scope bindings\n *   back to the parent. However, it does not make this completely impossible.\n *\n * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope. If\n *   no `attr` name is specified then the attribute name is assumed to be the same as the local name.\n *   Given `<my-component my-attr=\"count = count + value\">` and the isolate scope definition `scope: {\n *   localFn:'&myAttr' }`, the isolate scope property `localFn` will point to a function wrapper for\n *   the `count = count + value` expression. Often it's desirable to pass data from the isolated scope\n *   via an expression to the parent scope. This can be done by passing a map of local variable names\n *   and values into the expression wrapper fn. For example, if the expression is `increment(amount)`\n *   then we can specify the amount value by calling the `localFn` as `localFn({amount: 22})`.\n *\n * In general it's possible to apply more than one directive to one element, but there might be limitations\n * depending on the type of scope required by the directives. The following points will help explain these limitations.\n * For simplicity only two directives are taken into account, but it is also applicable for several directives:\n *\n * * **no scope** + **no scope** => Two directives which don't require their own scope will use their parent's scope\n * * **child scope** + **no scope** =>  Both directives will share one single child scope\n * * **child scope** + **child scope** =>  Both directives will share one single child scope\n * * **isolated scope** + **no scope** =>  The isolated directive will use it's own created isolated scope. The other directive will use\n * its parent's scope\n * * **isolated scope** + **child scope** =>  **Won't work!** Only one scope can be related to one element. Therefore these directives cannot\n * be applied to the same element.\n * * **isolated scope** + **isolated scope**  =>  **Won't work!** Only one scope can be related to one element. Therefore these directives\n * cannot be applied to the same element.\n *\n *\n * #### `bindToController`\n * This property is used to bind scope properties directly to the controller. It can be either\n * `true` or an object hash with the same format as the `scope` property.\n *\n * When an isolate scope is used for a directive (see above), `bindToController: true` will\n * allow a component to have its properties bound to the controller, rather than to scope.\n *\n * After the controller is instantiated, the initial values of the isolate scope bindings will be bound to the controller\n * properties. You can access these bindings once they have been initialized by providing a controller method called\n * `$onInit`, which is called after all the controllers on an element have been constructed and had their bindings\n * initialized.\n *\n * <div class=\"alert alert-warning\">\n * **Deprecation warning:** if `$compileProcvider.preAssignBindingsEnabled(true)` was called, bindings for non-ES6 class\n * controllers are bound to `this` before the controller constructor is called but this use is now deprecated. Please\n * place initialization code that relies upon bindings inside a `$onInit` method on the controller, instead.\n * </div>\n *\n * It is also possible to set `bindToController` to an object hash with the same format as the `scope` property.\n * This will set up the scope bindings to the controller directly. Note that `scope` can still be used\n * to define which kind of scope is created. By default, no scope is created. Use `scope: {}` to create an isolate\n * scope (useful for component directives).\n *\n * If both `bindToController` and `scope` are defined and have object hashes, `bindToController` overrides `scope`.\n *\n *\n * #### `controller`\n * Controller constructor function. The controller is instantiated before the\n * pre-linking phase and can be accessed by other directives (see\n * `require` attribute). This allows the directives to communicate with each other and augment\n * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:\n *\n * * `$scope` - Current scope associated with the element\n * * `$element` - Current element\n * * `$attrs` - Current attributes object for the element\n * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:\n *   `function([scope], cloneLinkingFn, futureParentElement, slotName)`:\n *    * `scope`: (optional) override the scope.\n *    * `cloneLinkingFn`: (optional) argument to create clones of the original transcluded content.\n *    * `futureParentElement` (optional):\n *        * defines the parent to which the `cloneLinkingFn` will add the cloned elements.\n *        * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.\n *        * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)\n *          and when the `cloneLinkingFn` is passed,\n *          as those elements need to created and cloned in a special way when they are defined outside their\n *          usual containers (e.g. like `<svg>`).\n *        * See also the `directive.templateNamespace` property.\n *    * `slotName`: (optional) the name of the slot to transclude. If falsy (e.g. `null`, `undefined` or `''`)\n *      then the default transclusion is provided.\n *    The `$transclude` function also has a method on it, `$transclude.isSlotFilled(slotName)`, which returns\n *    `true` if the specified slot contains content (i.e. one or more DOM nodes).\n *\n * #### `require`\n * Require another directive and inject its controller as the fourth argument to the linking function. The\n * `require` property can be a string, an array or an object:\n * * a **string** containing the name of the directive to pass to the linking function\n * * an **array** containing the names of directives to pass to the linking function. The argument passed to the\n * linking function will be an array of controllers in the same order as the names in the `require` property\n * * an **object** whose property values are the names of the directives to pass to the linking function. The argument\n * passed to the linking function will also be an object with matching keys, whose values will hold the corresponding\n * controllers.\n *\n * If the `require` property is an object and `bindToController` is truthy, then the required controllers are\n * bound to the controller using the keys of the `require` property. This binding occurs after all the controllers\n * have been constructed but before `$onInit` is called.\n * If the name of the required controller is the same as the local name (the key), the name can be\n * omitted. For example, `{parentDir: '^^'}` is equivalent to `{parentDir: '^^parentDir'}`.\n * See the {@link $compileProvider#component} helper for an example of how this can be used.\n * If no such required directive(s) can be found, or if the directive does not have a controller, then an error is\n * raised (unless no link function is specified and the required controllers are not being bound to the directive\n * controller, in which case error checking is skipped). The name can be prefixed with:\n *\n * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.\n * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.\n * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.\n * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.\n * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass\n *   `null` to the `link` fn if not found.\n * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass\n *   `null` to the `link` fn if not found.\n *\n *\n * #### `controllerAs`\n * Identifier name for a reference to the controller in the directive's scope.\n * This allows the controller to be referenced from the directive template. This is especially\n * useful when a directive is used as component, i.e. with an `isolate` scope. It's also possible\n * to use it in a directive without an `isolate` / `new` scope, but you need to be aware that the\n * `controllerAs` reference might overwrite a property that already exists on the parent scope.\n *\n *\n * #### `restrict`\n * String of subset of `EACM` which restricts the directive to a specific directive\n * declaration style. If omitted, the defaults (elements and attributes) are used.\n *\n * * `E` - Element name (default): `<my-directive></my-directive>`\n * * `A` - Attribute (default): `<div my-directive=\"exp\"></div>`\n * * `C` - Class: `<div class=\"my-directive: exp;\"></div>`\n * * `M` - Comment: `<!-- directive: my-directive exp -->`\n *\n *\n * #### `templateNamespace`\n * String representing the document type used by the markup in the template.\n * AngularJS needs this information as those elements need to be created and cloned\n * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.\n *\n * * `html` - All root nodes in the template are HTML. Root nodes may also be\n *   top-level elements such as `<svg>` or `<math>`.\n * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).\n * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).\n *\n * If no `templateNamespace` is specified, then the namespace is considered to be `html`.\n *\n * #### `template`\n * HTML markup that may:\n * * Replace the contents of the directive's element (default).\n * * Replace the directive's element itself (if `replace` is true - DEPRECATED).\n * * Wrap the contents of the directive's element (if `transclude` is true).\n *\n * Value may be:\n *\n * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.\n * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`\n *   function api below) and returns a string value.\n *\n *\n * #### `templateUrl`\n * This is similar to `template` but the template is loaded from the specified URL, asynchronously.\n *\n * Because template loading is asynchronous the compiler will suspend compilation of directives on that element\n * for later when the template has been resolved.  In the meantime it will continue to compile and link\n * sibling and parent elements as though this element had not contained any directives.\n *\n * The compiler does not suspend the entire compilation to wait for templates to be loaded because this\n * would result in the whole app \"stalling\" until all templates are loaded asynchronously - even in the\n * case when only one deeply nested directive has `templateUrl`.\n *\n * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}\n *\n * You can specify `templateUrl` as a string representing the URL or as a function which takes two\n * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns\n * a string value representing the url.  In either case, the template URL is passed through {@link\n * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.\n *\n *\n * #### `replace`\n * <div class=\"alert alert-danger\">\n * **Note:** `replace` is deprecated in AngularJS and has been removed in the new Angular (v2+).\n * </div>\n *\n * Specifies what the template should replace. Defaults to `false`.\n *\n * * `true` - the template will replace the directive's element.\n * * `false` - the template will replace the contents of the directive's element.\n *\n * The replacement process migrates all of the attributes / classes from the old element to the new\n * one. See the {@link guide/directive#template-expanding-directive\n * Directives Guide} for an example.\n *\n * There are very few scenarios where element replacement is required for the application function,\n * the main one being reusable custom components that are used within SVG contexts\n * (because SVG doesn't work with custom elements in the DOM tree).\n *\n * #### `transclude`\n * Extract the contents of the element where the directive appears and make it available to the directive.\n * The contents are compiled and provided to the directive as a **transclusion function**. See the\n * {@link $compile#transclusion Transclusion} section below.\n *\n *\n * #### `compile`\n *\n * ```js\n *   function compile(tElement, tAttrs, transclude) { ... }\n * ```\n *\n * The compile function deals with transforming the template DOM. Since most directives do not do\n * template transformation, it is not used often. The compile function takes the following arguments:\n *\n *   * `tElement` - template element - The element where the directive has been declared. It is\n *     safe to do template transformation on the element and child elements only.\n *\n *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared\n *     between all directive compile functions.\n *\n *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`\n *\n * <div class=\"alert alert-warning\">\n * **Note:** The template instance and the link instance may be different objects if the template has\n * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that\n * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration\n * should be done in a linking function rather than in a compile function.\n * </div>\n\n * <div class=\"alert alert-warning\">\n * **Note:** The compile function cannot handle directives that recursively use themselves in their\n * own templates or compile functions. Compiling these directives results in an infinite loop and\n * stack overflow errors.\n *\n * This can be avoided by manually using $compile in the postLink function to imperatively compile\n * a directive's template instead of relying on automatic template compilation via `template` or\n * `templateUrl` declaration or manual compilation inside the compile function.\n * </div>\n *\n * <div class=\"alert alert-danger\">\n * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it\n *   e.g. does not know about the right outer scope. Please use the transclude function that is passed\n *   to the link function instead.\n * </div>\n\n * A compile function can have a return value which can be either a function or an object.\n *\n * * returning a (post-link) function - is equivalent to registering the linking function via the\n *   `link` property of the config object when the compile function is empty.\n *\n * * returning an object with function(s) registered via `pre` and `post` properties - allows you to\n *   control when a linking function should be called during the linking phase. See info about\n *   pre-linking and post-linking functions below.\n *\n *\n * #### `link`\n * This property is used only if the `compile` property is not defined.\n *\n * ```js\n *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }\n * ```\n *\n * The link function is responsible for registering DOM listeners as well as updating the DOM. It is\n * executed after the template has been cloned. This is where most of the directive logic will be\n * put.\n *\n *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the\n *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.\n *\n *   * `iElement` - instance element - The element where the directive is to be used. It is safe to\n *     manipulate the children of the element only in `postLink` function since the children have\n *     already been linked.\n *\n *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared\n *     between all directive linking functions.\n *\n *   * `controller` - the directive's required controller instance(s) - Instances are shared\n *     among all directives, which allows the directives to use the controllers as a communication\n *     channel. The exact value depends on the directive's `require` property:\n *       * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one\n *       * `string`: the controller instance\n *       * `array`: array of controller instances\n *\n *     If a required controller cannot be found, and it is optional, the instance is `null`,\n *     otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown.\n *\n *     Note that you can also require the directive's own controller - it will be made available like\n *     any other controller.\n *\n *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.\n *     This is the same as the `$transclude` parameter of directive controllers,\n *     see {@link ng.$compile#-controller- the controller section for details}.\n *     `function([scope], cloneLinkingFn, futureParentElement)`.\n *\n * #### Pre-linking function\n *\n * Executed before the child elements are linked. Not safe to do DOM transformation since the\n * compiler linking function will fail to locate the correct elements for linking.\n *\n * #### Post-linking function\n *\n * Executed after the child elements are linked.\n *\n * Note that child elements that contain `templateUrl` directives will not have been compiled\n * and linked since they are waiting for their template to load asynchronously and their own\n * compilation and linking has been suspended until that occurs.\n *\n * It is safe to do DOM transformation in the post-linking function on elements that are not waiting\n * for their async templates to be resolved.\n *\n *\n * ### Transclusion\n *\n * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and\n * copying them to another part of the DOM, while maintaining their connection to the original AngularJS\n * scope from where they were taken.\n *\n * Transclusion is used (often with {@link ngTransclude}) to insert the\n * original contents of a directive's element into a specified place in the template of the directive.\n * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded\n * content has access to the properties on the scope from which it was taken, even if the directive\n * has isolated scope.\n * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.\n *\n * This makes it possible for the widget to have private state for its template, while the transcluded\n * content has access to its originating scope.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** When testing an element transclude directive you must not place the directive at the root of the\n * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives\n * Testing Transclusion Directives}.\n * </div>\n *\n * There are three kinds of transclusion depending upon whether you want to transclude just the contents of the\n * directive's element, the entire element or multiple parts of the element contents:\n *\n * * `true` - transclude the content (i.e. the child nodes) of the directive's element.\n * * `'element'` - transclude the whole of the directive's element including any directives on this\n *   element that defined at a lower priority than this directive. When used, the `template`\n *   property is ignored.\n * * **`{...}` (an object hash):** - map elements of the content onto transclusion \"slots\" in the template.\n *\n * **Mult-slot transclusion** is declared by providing an object for the `transclude` property.\n *\n * This object is a map where the keys are the name of the slot to fill and the value is an element selector\n * used to match the HTML to the slot. The element selector should be in normalized form (e.g. `myElement`)\n * and will match the standard element variants (e.g. `my-element`, `my:element`, `data-my-element`, etc).\n *\n * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n *\n * If the element selector is prefixed with a `?` then that slot is optional.\n *\n * For example, the transclude object `{ slotA: '?myCustomElement' }` maps `<my-custom-element>` elements to\n * the `slotA` slot, which can be accessed via the `$transclude` function or via the {@link ngTransclude} directive.\n *\n * Slots that are not marked as optional (`?`) will trigger a compile time error if there are no matching elements\n * in the transclude content. If you wish to know if an optional slot was filled with content, then you can call\n * `$transclude.isSlotFilled(slotName)` on the transclude function passed to the directive's link function and\n * injectable into the directive's controller.\n *\n *\n * #### Transclusion Functions\n *\n * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion\n * function** to the directive's `link` function and `controller`. This transclusion function is a special\n * **linking function** that will return the compiled contents linked to a new transclusion scope.\n *\n * <div class=\"alert alert-info\">\n * If you are just using {@link ngTransclude} then you don't need to worry about this function, since\n * ngTransclude will deal with it for us.\n * </div>\n *\n * If you want to manually control the insertion and removal of the transcluded content in your directive\n * then you must use this transclude function. When you call a transclude function it returns a a jqLite/JQuery\n * object that contains the compiled DOM, which is linked to the correct transclusion scope.\n *\n * When you call a transclusion function you can pass in a **clone attach function**. This function accepts\n * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded\n * content and the `scope` is the newly created transclusion scope, which the clone will be linked to.\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a transclude function\n * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.\n * </div>\n *\n * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone\n * attach function**:\n *\n * ```js\n * var transcludedContent, transclusionScope;\n *\n * $transclude(function(clone, scope) {\n *   element.append(clone);\n *   transcludedContent = clone;\n *   transclusionScope = scope;\n * });\n * ```\n *\n * Later, if you want to remove the transcluded content from your DOM then you should also destroy the\n * associated transclusion scope:\n *\n * ```js\n * transcludedContent.remove();\n * transclusionScope.$destroy();\n * ```\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: if you intend to add and remove transcluded content manually in your directive\n * (by calling the transclude function to get the DOM and calling `element.remove()` to remove it),\n * then you are also responsible for calling `$destroy` on the transclusion scope.\n * </div>\n *\n * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}\n * automatically destroy their transcluded clones as necessary so you do not need to worry about this if\n * you are simply using {@link ngTransclude} to inject the transclusion into your directive.\n *\n *\n * #### Transclusion Scopes\n *\n * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion\n * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed\n * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it\n * was taken.\n *\n * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look\n * like this:\n *\n * ```html\n * <div ng-app>\n *   <div isolate>\n *     <div transclusion>\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * The `$parent` scope hierarchy will look like this:\n *\n   ```\n   - $rootScope\n     - isolate\n       - transclusion\n   ```\n *\n * but the scopes will inherit prototypically from different scopes to their `$parent`.\n *\n   ```\n   - $rootScope\n     - transclusion\n   - isolate\n   ```\n *\n *\n * ### Attributes\n *\n * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the\n * `link()` or `compile()` functions. It has a variety of uses.\n *\n * * *Accessing normalized attribute names:* Directives like 'ngBind' can be expressed in many ways:\n *   'ng:bind', `data-ng-bind`, or 'x-ng-bind'. The attributes object allows for normalized access\n *   to the attributes.\n *\n * * *Directive inter-communication:* All directives share the same instance of the attributes\n *   object which allows the directives to use the attributes object as inter directive\n *   communication.\n *\n * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object\n *   allowing other directives to read the interpolated value.\n *\n * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes\n *   that contain interpolation (e.g. `src=\"{{bar}}\"`). Not only is this very efficient but it's also\n *   the only way to easily get the actual value because during the linking phase the interpolation\n *   hasn't been evaluated yet and so the value is at this time set to `undefined`.\n *\n * ```js\n * function linkingFn(scope, elm, attrs, ctrl) {\n *   // get the attribute value\n *   console.log(attrs.ngModel);\n *\n *   // change the attribute\n *   attrs.$set('ngModel', 'new value');\n *\n *   // observe changes to interpolated attribute\n *   attrs.$observe('ngModel', function(value) {\n *     console.log('ngModel has changed value to ' + value);\n *   });\n * }\n * ```\n *\n * ## Example\n *\n * <div class=\"alert alert-warning\">\n * **Note**: Typically directives are registered with `module.directive`. The example below is\n * to illustrate how `$compile` works.\n * </div>\n *\n <example module=\"compileExample\" name=\"compile\">\n   <file name=\"index.html\">\n    <script>\n      angular.module('compileExample', [], function($compileProvider) {\n        // configure new 'compile' directive by passing a directive\n        // factory function. The factory function injects the '$compile'\n        $compileProvider.directive('compile', function($compile) {\n          // directive factory creates a link function\n          return function(scope, element, attrs) {\n            scope.$watch(\n              function(scope) {\n                 // watch the 'compile' expression for changes\n                return scope.$eval(attrs.compile);\n              },\n              function(value) {\n                // when the 'compile' expression changes\n                // assign it into the current DOM\n                element.html(value);\n\n                // compile the new DOM and link it to the current\n                // scope.\n                // NOTE: we only compile .childNodes so that\n                // we don't get into infinite loop compiling ourselves\n                $compile(element.contents())(scope);\n              }\n            );\n          };\n        });\n      })\n      .controller('GreeterController', ['$scope', function($scope) {\n        $scope.name = 'AngularJS';\n        $scope.html = 'Hello {{name}}';\n      }]);\n    </script>\n    <div ng-controller=\"GreeterController\">\n      <input ng-model=\"name\"> <br/>\n      <textarea ng-model=\"html\"></textarea> <br/>\n      <div compile=\"html\"></div>\n    </div>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n     it('should auto compile', function() {\n       var textarea = $('textarea');\n       var output = $('div[compile]');\n       // The initial state reads 'Hello AngularJS'.\n       expect(output.getText()).toBe('Hello AngularJS');\n       textarea.clear();\n       textarea.sendKeys('{{name}}!');\n       expect(output.getText()).toBe('AngularJS!');\n     });\n   </file>\n </example>\n\n *\n *\n * @param {string|DOMElement} element Element or HTML string to compile into a template function.\n * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED.\n *\n * <div class=\"alert alert-danger\">\n * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it\n *   e.g. will not use the right outer scope. Please pass the transclude function as a\n *   `parentBoundTranscludeFn` to the link function instead.\n * </div>\n *\n * @param {number} maxPriority only apply directives lower than given priority (Only effects the\n *                 root element(s), not their children)\n * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template\n * (a DOM element/tree) to a scope. Where:\n *\n *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.\n *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the\n *  `template` and call the `cloneAttachFn` function allowing the caller to attach the\n *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is\n *  called as: <br/> `cloneAttachFn(clonedElement, scope)` where:\n *\n *      * `clonedElement` - is a clone of the original `element` passed into the compiler.\n *      * `scope` - is the current scope with which the linking function is working with.\n *\n *  * `options` - An optional object hash with linking options. If `options` is provided, then the following\n *  keys may be used to control linking behavior:\n *\n *      * `parentBoundTranscludeFn` - the transclude function made available to\n *        directives; if given, it will be passed through to the link functions of\n *        directives found in `element` during compilation.\n *      * `transcludeControllers` - an object hash with keys that map controller names\n *        to a hash with the key `instance`, which maps to the controller instance;\n *        if given, it will make the controllers available to directives on the compileNode:\n *        ```\n *        {\n *          parent: {\n *            instance: parentControllerInstance\n *          }\n *        }\n *        ```\n *      * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add\n *        the cloned elements; only needed for transcludes that are allowed to contain non html\n *        elements (e.g. SVG elements). See also the directive.controller property.\n *\n * Calling the linking function returns the element of the template. It is either the original\n * element passed in, or the clone of the element if the `cloneAttachFn` is provided.\n *\n * After linking the view is not updated until after a call to $digest which typically is done by\n * AngularJS automatically.\n *\n * If you need access to the bound view, there are two ways to do it:\n *\n * - If you are not asking the linking function to clone the template, create the DOM element(s)\n *   before you send them to the compiler and keep this reference around.\n *   ```js\n *     var element = $compile('<p>{{total}}</p>')(scope);\n *   ```\n *\n * - if on the other hand, you need the element to be cloned, the view reference from the original\n *   example would not point to the clone, but rather to the original template that was cloned. In\n *   this case, you can access the clone via the cloneAttachFn:\n *   ```js\n *     var templateElement = angular.element('<p>{{total}}</p>'),\n *         scope = ....;\n *\n *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {\n *       //attach the clone to DOM document at the right place\n *     });\n *\n *     //now we have reference to the cloned DOM via `clonedElement`\n *   ```\n *\n *\n * For information on how the compiler works, see the\n * {@link guide/compiler AngularJS HTML Compiler} section of the Developer Guide.\n *\n * @knownIssue\n *\n * ### Double Compilation\n *\n   Double compilation occurs when an already compiled part of the DOM gets\n   compiled again. This is an undesired effect and can lead to misbehaving directives, performance issues,\n   and memory leaks. Refer to the Compiler Guide {@link guide/compiler#double-compilation-and-how-to-avoid-it\n   section on double compilation} for an in-depth explanation and ways to avoid it.\n\n * @knownIssue\n\n   ### Issues with `replace: true`\n *\n * <div class=\"alert alert-danger\">\n *   **Note**: {@link $compile#-replace- `replace: true`} is deprecated and not recommended to use,\n *   mainly due to the issues listed here. It has been completely removed in the new Angular.\n * </div>\n *\n * #### Attribute values are not merged\n *\n * When a `replace` directive encounters the same attribute on the original and the replace node,\n * it will simply deduplicate the attribute and join the values with a space or with a `;` in case of\n * the `style` attribute.\n * ```html\n * Original Node: <span class=\"original\" style=\"color: red;\"></span>\n * Replace Template: <span class=\"replaced\" style=\"background: blue;\"></span>\n * Result: <span class=\"original replaced\" style=\"color: red; background: blue;\"></span>\n * ```\n *\n * That means attributes that contain AngularJS expressions will not be merged correctly, e.g.\n * {@link ngShow} or {@link ngClass} will cause a {@link $parse} error:\n *\n * ```html\n * Original Node: <span ng-class=\"{'something': something}\" ng-show=\"!condition\"></span>\n * Replace Template: <span ng-class=\"{'else': else}\" ng-show=\"otherCondition\"></span>\n * Result: <span ng-class=\"{'something': something} {'else': else}\" ng-show=\"!condition otherCondition\"></span>\n * ```\n *\n * See issue [#5695](https://github.com/angular/angular.js/issues/5695).\n *\n * #### Directives are not deduplicated before compilation\n *\n * When the original node and the replace template declare the same directive(s), they will be\n * {@link guide/compiler#double-compilation-and-how-to-avoid-it compiled twice} because the compiler\n * does not deduplicate them. In many cases, this is not noticable, but e.g. {@link ngModel} will\n * attach `$formatters` and `$parsers` twice.\n *\n * See issue [#2573](https://github.com/angular/angular.js/issues/2573).\n *\n * #### `transclude: element` in the replace template root can have\n * unexpected effects\n *\n * When the replace template has a directive at the root node that uses\n * {@link $compile#-transclude- `transclude: element`}, e.g.\n * {@link ngIf} or {@link ngRepeat}, the DOM structure or scope inheritance can be incorrect.\n * See the following issues:\n *\n * - Incorrect scope on replaced element:\n * [#9837](https://github.com/angular/angular.js/issues/9837)\n * - Different DOM between `template` and `templateUrl`:\n * [#10612](https://github.com/angular/angular.js/issues/14326)\n *\n */\n\nvar $compileMinErr = minErr('$compile');\n\nfunction UNINITIALIZED_VALUE() {}\nvar _UNINITIALIZED_VALUE = new UNINITIALIZED_VALUE();\n\n/**\n * @ngdoc provider\n * @name $compileProvider\n *\n * @description\n */\n$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];\n/** @this */\nfunction $CompileProvider($provide, $$sanitizeUriProvider) {\n  var hasDirectives = {},\n      Suffix = 'Directive',\n      COMMENT_DIRECTIVE_REGEXP = /^\\s*directive:\\s*([\\w-]+)\\s+(.*)$/,\n      CLASS_DIRECTIVE_REGEXP = /(([\\w-]+)(?::([^;]+))?;?)/,\n      ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),\n      REQUIRE_PREFIX_REGEXP = /^(?:(\\^\\^?)?(\\?)?(\\^\\^?)?)?/;\n\n  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes\n  // The assumption is that future DOM event attribute names will begin with\n  // 'on' and be composed of only English letters.\n  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;\n  var bindingCache = createMap();\n\n  function parseIsolateBindings(scope, directiveName, isController) {\n    var LOCAL_REGEXP = /^([@&<]|=(\\*?))(\\??)\\s*([\\w$]*)$/;\n\n    var bindings = createMap();\n\n    forEach(scope, function(definition, scopeName) {\n      definition = definition.trim();\n\n      if (definition in bindingCache) {\n        bindings[scopeName] = bindingCache[definition];\n        return;\n      }\n      var match = definition.match(LOCAL_REGEXP);\n\n      if (!match) {\n        throw $compileMinErr('iscp',\n            'Invalid {3} for directive \\'{0}\\'.' +\n            ' Definition: {... {1}: \\'{2}\\' ...}',\n            directiveName, scopeName, definition,\n            (isController ? 'controller bindings definition' :\n            'isolate scope definition'));\n      }\n\n      bindings[scopeName] = {\n        mode: match[1][0],\n        collection: match[2] === '*',\n        optional: match[3] === '?',\n        attrName: match[4] || scopeName\n      };\n      if (match[4]) {\n        bindingCache[definition] = bindings[scopeName];\n      }\n    });\n\n    return bindings;\n  }\n\n  function parseDirectiveBindings(directive, directiveName) {\n    var bindings = {\n      isolateScope: null,\n      bindToController: null\n    };\n    if (isObject(directive.scope)) {\n      if (directive.bindToController === true) {\n        bindings.bindToController = parseIsolateBindings(directive.scope,\n                                                         directiveName, true);\n        bindings.isolateScope = {};\n      } else {\n        bindings.isolateScope = parseIsolateBindings(directive.scope,\n                                                     directiveName, false);\n      }\n    }\n    if (isObject(directive.bindToController)) {\n      bindings.bindToController =\n          parseIsolateBindings(directive.bindToController, directiveName, true);\n    }\n    if (bindings.bindToController && !directive.controller) {\n      // There is no controller\n      throw $compileMinErr('noctrl',\n            'Cannot bind to controller without directive \\'{0}\\'s controller.',\n            directiveName);\n    }\n    return bindings;\n  }\n\n  function assertValidDirectiveName(name) {\n    var letter = name.charAt(0);\n    if (!letter || letter !== lowercase(letter)) {\n      throw $compileMinErr('baddir', 'Directive/Component name \\'{0}\\' is invalid. The first character must be a lowercase letter', name);\n    }\n    if (name !== name.trim()) {\n      throw $compileMinErr('baddir',\n            'Directive/Component name \\'{0}\\' is invalid. The name should not contain leading or trailing whitespaces',\n            name);\n    }\n  }\n\n  function getDirectiveRequire(directive) {\n    var require = directive.require || (directive.controller && directive.name);\n\n    if (!isArray(require) && isObject(require)) {\n      forEach(require, function(value, key) {\n        var match = value.match(REQUIRE_PREFIX_REGEXP);\n        var name = value.substring(match[0].length);\n        if (!name) require[key] = match[0] + key;\n      });\n    }\n\n    return require;\n  }\n\n  function getDirectiveRestrict(restrict, name) {\n    if (restrict && !(isString(restrict) && /[EACM]/.test(restrict))) {\n      throw $compileMinErr('badrestrict',\n          'Restrict property \\'{0}\\' of directive \\'{1}\\' is invalid',\n          restrict,\n          name);\n    }\n\n    return restrict || 'EA';\n  }\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#directive\n   * @kind function\n   *\n   * @description\n   * Register a new directive with the compiler.\n   *\n   * @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which\n   *    will match as <code>ng-bind</code>), or an object map of directives where the keys are the\n   *    names and the values are the factories.\n   * @param {Function|Array} directiveFactory An injectable directive factory function. See the\n   *    {@link guide/directive directive guide} and the {@link $compile compile API} for more info.\n   * @returns {ng.$compileProvider} Self for chaining.\n   */\n  this.directive = function registerDirective(name, directiveFactory) {\n    assertArg(name, 'name');\n    assertNotHasOwnProperty(name, 'directive');\n    if (isString(name)) {\n      assertValidDirectiveName(name);\n      assertArg(directiveFactory, 'directiveFactory');\n      if (!hasDirectives.hasOwnProperty(name)) {\n        hasDirectives[name] = [];\n        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',\n          function($injector, $exceptionHandler) {\n            var directives = [];\n            forEach(hasDirectives[name], function(directiveFactory, index) {\n              try {\n                var directive = $injector.invoke(directiveFactory);\n                if (isFunction(directive)) {\n                  directive = { compile: valueFn(directive) };\n                } else if (!directive.compile && directive.link) {\n                  directive.compile = valueFn(directive.link);\n                }\n                directive.priority = directive.priority || 0;\n                directive.index = index;\n                directive.name = directive.name || name;\n                directive.require = getDirectiveRequire(directive);\n                directive.restrict = getDirectiveRestrict(directive.restrict, name);\n                directive.$$moduleName = directiveFactory.$$moduleName;\n                directives.push(directive);\n              } catch (e) {\n                $exceptionHandler(e);\n              }\n            });\n            return directives;\n          }]);\n      }\n      hasDirectives[name].push(directiveFactory);\n    } else {\n      forEach(name, reverseParams(registerDirective));\n    }\n    return this;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#component\n   * @module ng\n   * @param {string|Object} name Name of the component in camelCase (i.e. `myComp` which will match `<my-comp>`),\n   *    or an object map of components where the keys are the names and the values are the component definition objects.\n   * @param {Object} options Component definition object (a simplified\n   *    {@link ng.$compile#directive-definition-object directive definition object}),\n   *    with the following properties (all optional):\n   *\n   *    - `controller` – `{(string|function()=}` – controller constructor function that should be\n   *      associated with newly created scope or the name of a {@link ng.$compile#-controller-\n   *      registered controller} if passed as a string. An empty `noop` function by default.\n   *    - `controllerAs` – `{string=}` – identifier name for to reference the controller in the component's scope.\n   *      If present, the controller will be published to scope under the `controllerAs` name.\n   *      If not present, this will default to be `$ctrl`.\n   *    - `template` – `{string=|function()=}` – html template as a string or a function that\n   *      returns an html template as a string which should be used as the contents of this component.\n   *      Empty string by default.\n   *\n   *      If `template` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `templateUrl` – `{string=|function()=}` – path or function that returns a path to an html\n   *      template that should be used  as the contents of this component.\n   *\n   *      If `templateUrl` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `bindings` – `{object=}` – defines bindings between DOM attributes and component properties.\n   *      Component properties are always bound to the component controller and not to the scope.\n   *      See {@link ng.$compile#-bindtocontroller- `bindToController`}.\n   *    - `transclude` – `{boolean=}` – whether {@link $compile#transclusion content transclusion} is enabled.\n   *      Disabled by default.\n   *    - `require` - `{Object<string, string>=}` - requires the controllers of other directives and binds them to\n   *      this component's controller. The object keys specify the property names under which the required\n   *      controllers (object values) will be bound. See {@link ng.$compile#-require- `require`}.\n   *    - `$...` – additional properties to attach to the directive factory function and the controller\n   *      constructor function. (This is used by the component router to annotate)\n   *\n   * @returns {ng.$compileProvider} the compile provider itself, for chaining of function calls.\n   * @description\n   * Register a **component definition** with the compiler. This is a shorthand for registering a special\n   * type of directive, which represents a self-contained UI component in your application. Such components\n   * are always isolated (i.e. `scope: {}`) and are always restricted to elements (i.e. `restrict: 'E'`).\n   *\n   * Component definitions are very simple and do not require as much configuration as defining general\n   * directives. Component definitions usually consist only of a template and a controller backing it.\n   *\n   * In order to make the definition easier, components enforce best practices like use of `controllerAs`,\n   * `bindToController`. They always have **isolate scope** and are restricted to elements.\n   *\n   * Here are a few examples of how you would usually define components:\n   *\n   * ```js\n   *   var myMod = angular.module(...);\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     controller: function() {\n   *       this.name = 'shahar';\n   *     }\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     templateUrl: 'views/my-comp.html',\n   *     controller: 'MyCtrl',\n   *     controllerAs: 'ctrl',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   * ```\n   * For more examples, and an in-depth guide, see the {@link guide/component component guide}.\n   *\n   * <br />\n   * See also {@link ng.$compileProvider#directive $compileProvider.directive()}.\n   */\n  this.component = function registerComponent(name, options) {\n    if (!isString(name)) {\n      forEach(name, reverseParams(bind(this, registerComponent)));\n      return this;\n    }\n\n    var controller = options.controller || function() {};\n\n    function factory($injector) {\n      function makeInjectable(fn) {\n        if (isFunction(fn) || isArray(fn)) {\n          return /** @this */ function(tElement, tAttrs) {\n            return $injector.invoke(fn, this, {$element: tElement, $attrs: tAttrs});\n          };\n        } else {\n          return fn;\n        }\n      }\n\n      var template = (!options.template && !options.templateUrl ? '' : options.template);\n      var ddo = {\n        controller: controller,\n        controllerAs: identifierForController(options.controller) || options.controllerAs || '$ctrl',\n        template: makeInjectable(template),\n        templateUrl: makeInjectable(options.templateUrl),\n        transclude: options.transclude,\n        scope: {},\n        bindToController: options.bindings || {},\n        restrict: 'E',\n        require: options.require\n      };\n\n      // Copy annotations (starting with $) over to the DDO\n      forEach(options, function(val, key) {\n        if (key.charAt(0) === '$') ddo[key] = val;\n      });\n\n      return ddo;\n    }\n\n    // TODO(pete) remove the following `forEach` before we release 1.6.0\n    // The component-router@0.2.0 looks for the annotations on the controller constructor\n    // Nothing in AngularJS looks for annotations on the factory function but we can't remove\n    // it from 1.5.x yet.\n\n    // Copy any annotation properties (starting with $) over to the factory and controller constructor functions\n    // These could be used by libraries such as the new component router\n    forEach(options, function(val, key) {\n      if (key.charAt(0) === '$') {\n        factory[key] = val;\n        // Don't try to copy over annotations to named controller\n        if (isFunction(controller)) controller[key] = val;\n      }\n    });\n\n    factory.$inject = ['$injector'];\n\n    return this.directive(name, factory);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at preventing XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.aHrefSanitizationWhitelist();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#debugInfoEnabled\n   *\n   * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the\n   * current debugInfoEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable various debug runtime information in the compiler such as adding\n   * binding information and a reference to the current scope on to DOM elements.\n   * If enabled, the compiler will add the following to DOM elements that have been bound to the scope\n   * * `ng-binding` CSS class\n   * * `ng-scope` and `ng-isolated-scope` CSS classes\n   * * `$binding` data property containing an array of the binding expressions\n   * * Data properties used by the {@link angular.element#methods `scope()`/`isolateScope()` methods} to return\n   *   the element's scope.\n   * * Placeholder comments will contain information about what directive and binding caused the placeholder.\n   *   E.g. `<!-- ngIf: shouldShow() -->`.\n   *\n   * You may want to disable this in production for a significant performance boost. See\n   * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.\n   *\n   * The default value is true.\n   */\n  var debugInfoEnabled = true;\n  this.debugInfoEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      debugInfoEnabled = enabled;\n      return this;\n    }\n    return debugInfoEnabled;\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#preAssignBindingsEnabled\n   *\n   * @param {boolean=} enabled update the preAssignBindingsEnabled state if provided, otherwise just return the\n   * current preAssignBindingsEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable whether directive controllers are assigned bindings before\n   * calling the controller's constructor.\n   * If enabled (true), the compiler assigns the value of each of the bindings to the\n   * properties of the controller object before the constructor of this object is called.\n   *\n   * If disabled (false), the compiler calls the constructor first before assigning bindings.\n   *\n   * The default value is false.\n   *\n   * @deprecated\n   * sinceVersion=\"1.6.0\"\n   * removeVersion=\"1.7.0\"\n   *\n   * This method and the option to assign the bindings before calling the controller's constructor\n   * will be removed in v1.7.0.\n   */\n  var preAssignBindingsEnabled = false;\n  this.preAssignBindingsEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      preAssignBindingsEnabled = enabled;\n      return this;\n    }\n    return preAssignBindingsEnabled;\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#strictComponentBindingsEnabled\n   *\n   * @param {boolean=} enabled update the strictComponentBindingsEnabled state if provided, otherwise just return the\n   * current strictComponentBindingsEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable strict component bindings check. If enabled, the compiler will enforce that\n   * for all bindings of a component that are not set as optional with `?`, an attribute needs to be provided\n   * on the component's HTML tag.\n   *\n   * The default value is false.\n   */\n  var strictComponentBindingsEnabled = false;\n  this.strictComponentBindingsEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      strictComponentBindingsEnabled = enabled;\n      return this;\n    }\n    return strictComponentBindingsEnabled;\n  };\n\n  var TTL = 10;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#onChangesTtl\n   * @description\n   *\n   * Sets the number of times `$onChanges` hooks can trigger new changes before giving up and\n   * assuming that the model is unstable.\n   *\n   * The current default is 10 iterations.\n   *\n   * In complex applications it's possible that dependencies between `$onChanges` hooks and bindings will result\n   * in several iterations of calls to these hooks. However if an application needs more than the default 10\n   * iterations to stabilize then you should investigate what is causing the model to continuously change during\n   * the `$onChanges` hook execution.\n   *\n   * Increasing the TTL could have performance implications, so you should not change it without proper justification.\n   *\n   * @param {number} limit The number of `$onChanges` hook iterations.\n   * @returns {number|object} the current limit (or `this` if called as a setter for chaining)\n   */\n  this.onChangesTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n      return this;\n    }\n    return TTL;\n  };\n\n  var commentDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#commentDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on comments should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on comments for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check comments when looking for directives.\n   * This should however only be used if you are sure that no comment directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on comments\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.commentDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      commentDirectivesEnabledConfig = value;\n      return this;\n    }\n    return commentDirectivesEnabledConfig;\n  };\n\n\n  var cssClassDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#cssClassDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on element classes should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on element classes for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check element classes when looking for directives.\n   * This should however only be used if you are sure that no class directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on element classes\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.cssClassDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      cssClassDirectivesEnabledConfig = value;\n      return this;\n    }\n    return cssClassDirectivesEnabledConfig;\n  };\n\n  this.$get = [\n            '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',\n            '$controller', '$rootScope', '$sce', '$animate', '$$sanitizeUri',\n    function($injector,   $interpolate,   $exceptionHandler,   $templateRequest,   $parse,\n             $controller,   $rootScope,   $sce,   $animate,   $$sanitizeUri) {\n\n    var SIMPLE_ATTR_NAME = /^\\w/;\n    var specialAttrHolder = window.document.createElement('div');\n\n\n    var commentDirectivesEnabled = commentDirectivesEnabledConfig;\n    var cssClassDirectivesEnabled = cssClassDirectivesEnabledConfig;\n\n\n    var onChangesTtl = TTL;\n    // The onChanges hooks should all be run together in a single digest\n    // When changes occur, the call to trigger their hooks will be added to this queue\n    var onChangesQueue;\n\n    // This function is called in a $$postDigest to trigger all the onChanges hooks in a single digest\n    function flushOnChangesQueue() {\n      try {\n        if (!(--onChangesTtl)) {\n          // We have hit the TTL limit so reset everything\n          onChangesQueue = undefined;\n          throw $compileMinErr('infchng', '{0} $onChanges() iterations reached. Aborting!\\n', TTL);\n        }\n        // We must run this hook in an apply since the $$postDigest runs outside apply\n        $rootScope.$apply(function() {\n          for (var i = 0, ii = onChangesQueue.length; i < ii; ++i) {\n            try {\n              onChangesQueue[i]();\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          // Reset the queue to trigger a new schedule next time there is a change\n          onChangesQueue = undefined;\n        });\n      } finally {\n        onChangesTtl++;\n      }\n    }\n\n\n    function Attributes(element, attributesToCopy) {\n      if (attributesToCopy) {\n        var keys = Object.keys(attributesToCopy);\n        var i, l, key;\n\n        for (i = 0, l = keys.length; i < l; i++) {\n          key = keys[i];\n          this[key] = attributesToCopy[key];\n        }\n      } else {\n        this.$attr = {};\n      }\n\n      this.$$element = element;\n    }\n\n    Attributes.prototype = {\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$normalize\n       * @kind function\n       *\n       * @description\n       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or\n       * `data-`) to its normalized, camelCase form.\n       *\n       * Also there is special case for Moz prefix starting with upper case letter.\n       *\n       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n       *\n       * @param {string} name Name to normalize\n       */\n      $normalize: directiveNormalize,\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$addClass\n       * @kind function\n       *\n       * @description\n       * Adds the CSS class value specified by the classVal parameter to the element. If animations\n       * are enabled then an animation will be triggered for the class addition.\n       *\n       * @param {string} classVal The className value that will be added to the element\n       */\n      $addClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.addClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$removeClass\n       * @kind function\n       *\n       * @description\n       * Removes the CSS class value specified by the classVal parameter from the element. If\n       * animations are enabled then an animation will be triggered for the class removal.\n       *\n       * @param {string} classVal The className value that will be removed from the element\n       */\n      $removeClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.removeClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$updateClass\n       * @kind function\n       *\n       * @description\n       * Adds and removes the appropriate CSS class values to the element based on the difference\n       * between the new and old CSS class values (specified as newClasses and oldClasses).\n       *\n       * @param {string} newClasses The current CSS className value\n       * @param {string} oldClasses The former CSS className value\n       */\n      $updateClass: function(newClasses, oldClasses) {\n        var toAdd = tokenDifference(newClasses, oldClasses);\n        if (toAdd && toAdd.length) {\n          $animate.addClass(this.$$element, toAdd);\n        }\n\n        var toRemove = tokenDifference(oldClasses, newClasses);\n        if (toRemove && toRemove.length) {\n          $animate.removeClass(this.$$element, toRemove);\n        }\n      },\n\n      /**\n       * Set a normalized attribute on the element in a way such that all directives\n       * can share the attribute. This function properly handles boolean attributes.\n       * @param {string} key Normalized key. (ie ngAttribute)\n       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.\n       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.\n       *     Defaults to true.\n       * @param {string=} attrName Optional none normalized name. Defaults to key.\n       */\n      $set: function(key, value, writeAttr, attrName) {\n        // TODO: decide whether or not to throw an error if \"class\"\n        //is set through this function since it may cause $updateClass to\n        //become unstable.\n\n        var node = this.$$element[0],\n            booleanKey = getBooleanAttrName(node, key),\n            aliasedKey = getAliasedAttrName(key),\n            observer = key,\n            nodeName;\n\n        if (booleanKey) {\n          this.$$element.prop(key, value);\n          attrName = booleanKey;\n        } else if (aliasedKey) {\n          this[aliasedKey] = value;\n          observer = aliasedKey;\n        }\n\n        this[key] = value;\n\n        // translate normalized key to actual key\n        if (attrName) {\n          this.$attr[key] = attrName;\n        } else {\n          attrName = this.$attr[key];\n          if (!attrName) {\n            this.$attr[key] = attrName = snake_case(key, '-');\n          }\n        }\n\n        nodeName = nodeName_(this.$$element);\n\n        if ((nodeName === 'a' && (key === 'href' || key === 'xlinkHref')) ||\n            (nodeName === 'img' && key === 'src')) {\n          // sanitize a[href] and img[src] values\n          this[key] = value = (value == null) ? value : $$sanitizeUri(value, key === 'src');\n        } else if (nodeName === 'img' && key === 'srcset' && isDefined(value)) {\n          // sanitize img[srcset] values\n          var result = '';\n\n          // first check if there are spaces because it's not the same pattern\n          var trimmedSrcset = trim(value);\n          //                (   999x   ,|   999w   ,|   ,|,   )\n          var srcPattern = /(\\s+\\d+x\\s*,|\\s+\\d+w\\s*,|\\s+,|,\\s+)/;\n          var pattern = /\\s/.test(trimmedSrcset) ? srcPattern : /(,)/;\n\n          // split srcset into tuple of uri and descriptor except for the last item\n          var rawUris = trimmedSrcset.split(pattern);\n\n          // for each tuples\n          var nbrUrisWith2parts = Math.floor(rawUris.length / 2);\n          for (var i = 0; i < nbrUrisWith2parts; i++) {\n            var innerIdx = i * 2;\n            // sanitize the uri\n            result += $$sanitizeUri(trim(rawUris[innerIdx]), true);\n            // add the descriptor\n            result += (' ' + trim(rawUris[innerIdx + 1]));\n          }\n\n          // split the last item into uri and descriptor\n          var lastTuple = trim(rawUris[i * 2]).split(/\\s/);\n\n          // sanitize the last uri\n          result += $$sanitizeUri(trim(lastTuple[0]), true);\n\n          // and add the last descriptor if any\n          if (lastTuple.length === 2) {\n            result += (' ' + trim(lastTuple[1]));\n          }\n          this[key] = value = result;\n        }\n\n        if (writeAttr !== false) {\n          if (value == null) {\n            this.$$element.removeAttr(attrName);\n          } else {\n            if (SIMPLE_ATTR_NAME.test(attrName)) {\n              this.$$element.attr(attrName, value);\n            } else {\n              setSpecialAttr(this.$$element[0], attrName, value);\n            }\n          }\n        }\n\n        // fire observers\n        var $$observers = this.$$observers;\n        if ($$observers) {\n          forEach($$observers[observer], function(fn) {\n            try {\n              fn(value);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          });\n        }\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$observe\n       * @kind function\n       *\n       * @description\n       * Observes an interpolated attribute.\n       *\n       * The observer function will be invoked once during the next `$digest` following\n       * compilation. The observer is then invoked whenever the interpolated value\n       * changes.\n       *\n       * @param {string} key Normalized key. (ie ngAttribute) .\n       * @param {function(interpolatedValue)} fn Function that will be called whenever\n                the interpolated value of the attribute changes.\n       *        See the {@link guide/interpolation#how-text-and-attribute-bindings-work Interpolation\n       *        guide} for more info.\n       * @returns {function()} Returns a deregistration function for this observer.\n       */\n      $observe: function(key, fn) {\n        var attrs = this,\n            $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),\n            listeners = ($$observers[key] || ($$observers[key] = []));\n\n        listeners.push(fn);\n        $rootScope.$evalAsync(function() {\n          if (!listeners.$$inter && attrs.hasOwnProperty(key) && !isUndefined(attrs[key])) {\n            // no one registered attribute interpolation function, so lets call it manually\n            fn(attrs[key]);\n          }\n        });\n\n        return function() {\n          arrayRemove(listeners, fn);\n        };\n      }\n    };\n\n    function setSpecialAttr(element, attrName, value) {\n      // Attributes names that do not start with letters (such as `(click)`) cannot be set using `setAttribute`\n      // so we have to jump through some hoops to get such an attribute\n      // https://github.com/angular/angular.js/pull/13318\n      specialAttrHolder.innerHTML = '<span ' + attrName + '>';\n      var attributes = specialAttrHolder.firstChild.attributes;\n      var attribute = attributes[0];\n      // We have to remove the attribute from its container element before we can add it to the destination element\n      attributes.removeNamedItem(attribute.name);\n      attribute.value = value;\n      element.attributes.setNamedItem(attribute);\n    }\n\n    function safeAddClass($element, className) {\n      try {\n        $element.addClass(className);\n      } catch (e) {\n        // ignore, since it means that we are trying to set class on\n        // SVG element, where class name is read-only.\n      }\n    }\n\n\n    var startSymbol = $interpolate.startSymbol(),\n        endSymbol = $interpolate.endSymbol(),\n        denormalizeTemplate = (startSymbol === '{{' && endSymbol  === '}}')\n            ? identity\n            : function denormalizeTemplate(template) {\n              return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n        },\n        NG_ATTR_BINDING = /^ngAttr[A-Z]/;\n    var MULTI_ELEMENT_DIR_RE = /^(.+)Start$/;\n\n    compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {\n      var bindings = $element.data('$binding') || [];\n\n      if (isArray(binding)) {\n        bindings = bindings.concat(binding);\n      } else {\n        bindings.push(binding);\n      }\n\n      $element.data('$binding', bindings);\n    } : noop;\n\n    compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {\n      safeAddClass($element, 'ng-binding');\n    } : noop;\n\n    compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {\n      var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';\n      $element.data(dataName, scope);\n    } : noop;\n\n    compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {\n      safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');\n    } : noop;\n\n    compile.$$createComment = function(directiveName, comment) {\n      var content = '';\n      if (debugInfoEnabled) {\n        content = ' ' + (directiveName || '') + ': ';\n        if (comment) content += comment + ' ';\n      }\n      return window.document.createComment(content);\n    };\n\n    return compile;\n\n    //================================\n\n    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,\n                        previousCompileContext) {\n      if (!($compileNodes instanceof jqLite)) {\n        // jquery always rewraps, whereas we need to preserve the original selector so that we can\n        // modify it.\n        $compileNodes = jqLite($compileNodes);\n      }\n      var compositeLinkFn =\n              compileNodes($compileNodes, transcludeFn, $compileNodes,\n                           maxPriority, ignoreDirective, previousCompileContext);\n      compile.$$addScopeClass($compileNodes);\n      var namespace = null;\n      return function publicLinkFn(scope, cloneConnectFn, options) {\n        if (!$compileNodes) {\n          throw $compileMinErr('multilink', 'This element has already been linked.');\n        }\n        assertArg(scope, 'scope');\n\n        if (previousCompileContext && previousCompileContext.needsNewScope) {\n          // A parent directive did a replace and a directive on this element asked\n          // for transclusion, which caused us to lose a layer of element on which\n          // we could hold the new transclusion scope, so we will create it manually\n          // here.\n          scope = scope.$parent.$new();\n        }\n\n        options = options || {};\n        var parentBoundTranscludeFn = options.parentBoundTranscludeFn,\n          transcludeControllers = options.transcludeControllers,\n          futureParentElement = options.futureParentElement;\n\n        // When `parentBoundTranscludeFn` is passed, it is a\n        // `controllersBoundTransclude` function (it was previously passed\n        // as `transclude` to directive.link) so we must unwrap it to get\n        // its `boundTranscludeFn`\n        if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) {\n          parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude;\n        }\n\n        if (!namespace) {\n          namespace = detectNamespaceForChildElements(futureParentElement);\n        }\n        var $linkNode;\n        if (namespace !== 'html') {\n          // When using a directive with replace:true and templateUrl the $compileNodes\n          // (or a child element inside of them)\n          // might change, so we need to recreate the namespace adapted compileNodes\n          // for call to the link function.\n          // Note: This will already clone the nodes...\n          $linkNode = jqLite(\n            wrapTemplate(namespace, jqLite('<div></div>').append($compileNodes).html())\n          );\n        } else if (cloneConnectFn) {\n          // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n          // and sometimes changes the structure of the DOM.\n          $linkNode = JQLitePrototype.clone.call($compileNodes);\n        } else {\n          $linkNode = $compileNodes;\n        }\n\n        if (transcludeControllers) {\n          for (var controllerName in transcludeControllers) {\n            $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);\n          }\n        }\n\n        compile.$$addScopeInfo($linkNode, scope);\n\n        if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n\n        if (!cloneConnectFn) {\n          $compileNodes = compositeLinkFn = null;\n        }\n        return $linkNode;\n      };\n    }\n\n    function detectNamespaceForChildElements(parentElement) {\n      // TODO: Make this detect MathML as well...\n      var node = parentElement && parentElement[0];\n      if (!node) {\n        return 'html';\n      } else {\n        return nodeName_(node) !== 'foreignobject' && toString.call(node).match(/SVG/) ? 'svg' : 'html';\n      }\n    }\n\n    /**\n     * Compile function matches each node in nodeList against the directives. Once all directives\n     * for a particular node are collected their compile functions are executed. The compile\n     * functions return values - the linking functions - are combined into a composite linking\n     * function, which is the a linking function for the node.\n     *\n     * @param {NodeList} nodeList an array of nodes or NodeList to compile\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *        scope argument is auto-generated to the new child of the transcluded parent scope.\n     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n     *        the rootElement must be set the jqLite collection of the compile root. This is\n     *        needed so that the jqLite collection items can be replaced with widgets.\n     * @param {number=} maxPriority Max directive priority.\n     * @returns {Function} A composite linking function of all of the matched directives or null.\n     */\n    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n                            previousCompileContext) {\n      var linkFns = [],\n          // `nodeList` can be either an element's `.childNodes` (live NodeList)\n          // or a jqLite/jQuery collection or an array\n          notLiveList = isArray(nodeList) || (nodeList instanceof jqLite),\n          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;\n\n\n      for (var i = 0; i < nodeList.length; i++) {\n        attrs = new Attributes();\n\n        // Support: IE 11 only\n        // Workaround for #11781 and #14924\n        if (msie === 11) {\n          mergeConsecutiveTextNodes(nodeList, i, notLiveList);\n        }\n\n        // We must always refer to `nodeList[i]` hereafter,\n        // since the nodes can be replaced underneath us.\n        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n                                        ignoreDirective);\n\n        nodeLinkFn = (directives.length)\n            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n                                      null, [], [], previousCompileContext)\n            : null;\n\n        if (nodeLinkFn && nodeLinkFn.scope) {\n          compile.$$addScopeClass(attrs.$$element);\n        }\n\n        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n                      !(childNodes = nodeList[i].childNodes) ||\n                      !childNodes.length)\n            ? null\n            : compileNodes(childNodes,\n                 nodeLinkFn ? (\n                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n                     && nodeLinkFn.transclude) : transcludeFn);\n\n        if (nodeLinkFn || childLinkFn) {\n          linkFns.push(i, nodeLinkFn, childLinkFn);\n          linkFnFound = true;\n          nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;\n        }\n\n        //use the previous context only for the first element in the virtual group\n        previousCompileContext = null;\n      }\n\n      // return a linking function if we have found anything, null otherwise\n      return linkFnFound ? compositeLinkFn : null;\n\n      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n        var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;\n        var stableNodeList;\n\n\n        if (nodeLinkFnFound) {\n          // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our\n          // offsets don't get screwed up\n          var nodeListLength = nodeList.length;\n          stableNodeList = new Array(nodeListLength);\n\n          // create a sparse array by only copying the elements which have a linkFn\n          for (i = 0; i < linkFns.length; i += 3) {\n            idx = linkFns[i];\n            stableNodeList[idx] = nodeList[idx];\n          }\n        } else {\n          stableNodeList = nodeList;\n        }\n\n        for (i = 0, ii = linkFns.length; i < ii;) {\n          node = stableNodeList[linkFns[i++]];\n          nodeLinkFn = linkFns[i++];\n          childLinkFn = linkFns[i++];\n\n          if (nodeLinkFn) {\n            if (nodeLinkFn.scope) {\n              childScope = scope.$new();\n              compile.$$addScopeInfo(jqLite(node), childScope);\n            } else {\n              childScope = scope;\n            }\n\n            if (nodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(\n                  scope, nodeLinkFn.transclude, parentBoundTranscludeFn);\n\n            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n              childBoundTranscludeFn = parentBoundTranscludeFn;\n\n            } else if (!parentBoundTranscludeFn && transcludeFn) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n            } else {\n              childBoundTranscludeFn = null;\n            }\n\n            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n          } else if (childLinkFn) {\n            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n          }\n        }\n      }\n    }\n\n    function mergeConsecutiveTextNodes(nodeList, idx, notLiveList) {\n      var node = nodeList[idx];\n      var parent = node.parentNode;\n      var sibling;\n\n      if (node.nodeType !== NODE_TYPE_TEXT) {\n        return;\n      }\n\n      while (true) {\n        sibling = parent ? node.nextSibling : nodeList[idx + 1];\n        if (!sibling || sibling.nodeType !== NODE_TYPE_TEXT) {\n          break;\n        }\n\n        node.nodeValue = node.nodeValue + sibling.nodeValue;\n\n        if (sibling.parentNode) {\n          sibling.parentNode.removeChild(sibling);\n        }\n        if (notLiveList && sibling === nodeList[idx + 1]) {\n          nodeList.splice(idx + 1, 1);\n        }\n      }\n    }\n\n    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) {\n      function boundTranscludeFn(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {\n\n        if (!transcludedScope) {\n          transcludedScope = scope.$new(false, containingScope);\n          transcludedScope.$$transcluded = true;\n        }\n\n        return transcludeFn(transcludedScope, cloneFn, {\n          parentBoundTranscludeFn: previousBoundTranscludeFn,\n          transcludeControllers: controllers,\n          futureParentElement: futureParentElement\n        });\n      }\n\n      // We need  to attach the transclusion slots onto the `boundTranscludeFn`\n      // so that they are available inside the `controllersBoundTransclude` function\n      var boundSlots = boundTranscludeFn.$$slots = createMap();\n      for (var slotName in transcludeFn.$$slots) {\n        if (transcludeFn.$$slots[slotName]) {\n          boundSlots[slotName] = createBoundTranscludeFn(scope, transcludeFn.$$slots[slotName], previousBoundTranscludeFn);\n        } else {\n          boundSlots[slotName] = null;\n        }\n      }\n\n      return boundTranscludeFn;\n    }\n\n    /**\n     * Looks for directives on the given node and adds them to the directive collection which is\n     * sorted.\n     *\n     * @param node Node to search.\n     * @param directives An array to which the directives are added to. This array is sorted before\n     *        the function returns.\n     * @param attrs The shared attrs object which is used to populate the normalized attributes.\n     * @param {number=} maxPriority Max directive priority.\n     */\n    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      var nodeType = node.nodeType,\n          attrsMap = attrs.$attr,\n          match,\n          nodeName,\n          className;\n\n      switch (nodeType) {\n        case NODE_TYPE_ELEMENT: /* Element */\n\n          nodeName = nodeName_(node);\n\n          // use the node name: <directive>\n          addDirective(directives,\n              directiveNormalize(nodeName), 'E', maxPriority, ignoreDirective);\n\n          // iterate over the attributes\n          for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,\n                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n            var attrStartName = false;\n            var attrEndName = false;\n\n            attr = nAttrs[j];\n            name = attr.name;\n            value = attr.value;\n\n            // support ngAttr attribute binding\n            ngAttrName = directiveNormalize(name);\n            isNgAttr = NG_ATTR_BINDING.test(ngAttrName);\n            if (isNgAttr) {\n              name = name.replace(PREFIX_REGEXP, '')\n                .substr(8).replace(/_(.)/g, function(match, letter) {\n                  return letter.toUpperCase();\n                });\n            }\n\n            var multiElementMatch = ngAttrName.match(MULTI_ELEMENT_DIR_RE);\n            if (multiElementMatch && directiveIsMultiElement(multiElementMatch[1])) {\n              attrStartName = name;\n              attrEndName = name.substr(0, name.length - 5) + 'end';\n              name = name.substr(0, name.length - 6);\n            }\n\n            nName = directiveNormalize(name.toLowerCase());\n            attrsMap[nName] = name;\n            if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n                attrs[nName] = value;\n                if (getBooleanAttrName(node, nName)) {\n                  attrs[nName] = true; // presence means true\n                }\n            }\n            addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);\n            addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n                          attrEndName);\n          }\n\n          if (nodeName === 'input' && node.getAttribute('type') === 'hidden') {\n            // Hidden input elements can have strange behaviour when navigating back to the page\n            // This tells the browser not to try to cache and reinstate previous values\n            node.setAttribute('autocomplete', 'off');\n          }\n\n          // use class as directive\n          if (!cssClassDirectivesEnabled) break;\n          className = node.className;\n          if (isObject(className)) {\n              // Maybe SVGAnimatedString\n              className = className.animVal;\n          }\n          if (isString(className) && className !== '') {\n            while ((match = CLASS_DIRECTIVE_REGEXP.exec(className))) {\n              nName = directiveNormalize(match[2]);\n              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[3]);\n              }\n              className = className.substr(match.index + match[0].length);\n            }\n          }\n          break;\n        case NODE_TYPE_TEXT: /* Text Node */\n          addTextInterpolateDirective(directives, node.nodeValue);\n          break;\n        case NODE_TYPE_COMMENT: /* Comment */\n          if (!commentDirectivesEnabled) break;\n          collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective);\n          break;\n      }\n\n      directives.sort(byPriority);\n      return directives;\n    }\n\n    function collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      // function created because of performance, try/catch disables\n      // the optimization of the whole function #14848\n      try {\n        var match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n        if (match) {\n          var nName = directiveNormalize(match[1]);\n          if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n            attrs[nName] = trim(match[2]);\n          }\n        }\n      } catch (e) {\n        // turns out that under some circumstances IE9 throws errors when one attempts to read\n        // comment's node value.\n        // Just ignore it and continue. (Can't seem to reproduce in test case.)\n      }\n    }\n\n    /**\n     * Given a node with a directive-start it collects all of the siblings until it finds\n     * directive-end.\n     * @param node\n     * @param attrStart\n     * @param attrEnd\n     * @returns {*}\n     */\n    function groupScan(node, attrStart, attrEnd) {\n      var nodes = [];\n      var depth = 0;\n      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n        do {\n          if (!node) {\n            throw $compileMinErr('uterdir',\n                      'Unterminated attribute, found \\'{0}\\' but no matching \\'{1}\\' found.',\n                      attrStart, attrEnd);\n          }\n          if (node.nodeType === NODE_TYPE_ELEMENT) {\n            if (node.hasAttribute(attrStart)) depth++;\n            if (node.hasAttribute(attrEnd)) depth--;\n          }\n          nodes.push(node);\n          node = node.nextSibling;\n        } while (depth > 0);\n      } else {\n        nodes.push(node);\n      }\n\n      return jqLite(nodes);\n    }\n\n    /**\n     * Wrapper for linking function which converts normal linking function into a grouped\n     * linking function.\n     * @param linkFn\n     * @param attrStart\n     * @param attrEnd\n     * @returns {Function}\n     */\n    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n      return function groupedElementsLink(scope, element, attrs, controllers, transcludeFn) {\n        element = groupScan(element[0], attrStart, attrEnd);\n        return linkFn(scope, element, attrs, controllers, transcludeFn);\n      };\n    }\n\n    /**\n     * A function generator that is used to support both eager and lazy compilation\n     * linking function.\n     * @param eager\n     * @param $compileNodes\n     * @param transcludeFn\n     * @param maxPriority\n     * @param ignoreDirective\n     * @param previousCompileContext\n     * @returns {Function}\n     */\n    function compilationGenerator(eager, $compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) {\n      var compiled;\n\n      if (eager) {\n        return compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n      }\n      return /** @this */ function lazyCompilation() {\n        if (!compiled) {\n          compiled = compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n\n          // Null out all of these references in order to make them eligible for garbage collection\n          // since this is a potentially long lived closure\n          $compileNodes = transcludeFn = previousCompileContext = null;\n        }\n        return compiled.apply(this, arguments);\n      };\n    }\n\n    /**\n     * Once the directives have been collected, their compile functions are executed. This method\n     * is responsible for inlining directive templates as well as terminating the application\n     * of the directives if the terminal directive has been reached.\n     *\n     * @param {Array} directives Array of collected directives to execute their compile function.\n     *        this needs to be pre-sorted by priority order.\n     * @param {Node} compileNode The raw DOM node to apply the compile functions to\n     * @param {Object} templateAttrs The shared attribute function\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *                                                  scope argument is auto-generated to the new\n     *                                                  child of the transcluded parent scope.\n     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n     *                              argument has the root jqLite array so that we can replace nodes\n     *                              on it.\n     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n     *                                           compiling the transclusion.\n     * @param {Array.<Function>} preLinkFns\n     * @param {Array.<Function>} postLinkFns\n     * @param {Object} previousCompileContext Context used for previous compilation of the current\n     *                                        node\n     * @returns {Function} linkFn\n     */\n    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n                                   previousCompileContext) {\n      previousCompileContext = previousCompileContext || {};\n\n      var terminalPriority = -Number.MAX_VALUE,\n          newScopeDirective = previousCompileContext.newScopeDirective,\n          controllerDirectives = previousCompileContext.controllerDirectives,\n          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n          templateDirective = previousCompileContext.templateDirective,\n          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n          hasTranscludeDirective = false,\n          hasTemplate = false,\n          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n          $compileNode = templateAttrs.$$element = jqLite(compileNode),\n          directive,\n          directiveName,\n          $template,\n          replaceDirective = originalReplaceDirective,\n          childTranscludeFn = transcludeFn,\n          linkFn,\n          didScanForMultipleTransclusion = false,\n          mightHaveMultipleTransclusionError = false,\n          directiveValue;\n\n      // executes all directives on the current element\n      for (var i = 0, ii = directives.length; i < ii; i++) {\n        directive = directives[i];\n        var attrStart = directive.$$start;\n        var attrEnd = directive.$$end;\n\n        // collect multiblock sections\n        if (attrStart) {\n          $compileNode = groupScan(compileNode, attrStart, attrEnd);\n        }\n        $template = undefined;\n\n        if (terminalPriority > directive.priority) {\n          break; // prevent further processing of directives\n        }\n\n        directiveValue = directive.scope;\n\n        if (directiveValue) {\n\n          // skip the check for directives with async templates, we'll check the derived sync\n          // directive when the template arrives\n          if (!directive.templateUrl) {\n            if (isObject(directiveValue)) {\n              // This directive is trying to add an isolated scope.\n              // Check that there is no scope of any kind already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,\n                                directive, $compileNode);\n              newIsolateScopeDirective = directive;\n            } else {\n              // This directive is trying to add a child scope.\n              // Check that there is no isolated scope already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n                                $compileNode);\n            }\n          }\n\n          newScopeDirective = newScopeDirective || directive;\n        }\n\n        directiveName = directive.name;\n\n        // If we encounter a condition that can result in transclusion on the directive,\n        // then scan ahead in the remaining directives for others that may cause a multiple\n        // transclusion error to be thrown during the compilation process.  If a matching directive\n        // is found, then we know that when we encounter a transcluded directive, we need to eagerly\n        // compile the `transclude` function rather than doing it lazily in order to throw\n        // exceptions at the correct time\n        if (!didScanForMultipleTransclusion && ((directive.replace && (directive.templateUrl || directive.template))\n            || (directive.transclude && !directive.$$tlb))) {\n                var candidateDirective;\n\n                for (var scanningIndex = i + 1; (candidateDirective = directives[scanningIndex++]);) {\n                    if ((candidateDirective.transclude && !candidateDirective.$$tlb)\n                        || (candidateDirective.replace && (candidateDirective.templateUrl || candidateDirective.template))) {\n                        mightHaveMultipleTransclusionError = true;\n                        break;\n                    }\n                }\n\n                didScanForMultipleTransclusion = true;\n        }\n\n        if (!directive.templateUrl && directive.controller) {\n          controllerDirectives = controllerDirectives || createMap();\n          assertNoDuplicate('\\'' + directiveName + '\\' controller',\n              controllerDirectives[directiveName], directive, $compileNode);\n          controllerDirectives[directiveName] = directive;\n        }\n\n        directiveValue = directive.transclude;\n\n        if (directiveValue) {\n          hasTranscludeDirective = true;\n\n          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n          // This option should only be used by directives that know how to safely handle element transclusion,\n          // where the transcluded nodes are added or replaced after linking.\n          if (!directive.$$tlb) {\n            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n            nonTlbTranscludeDirective = directive;\n          }\n\n          if (directiveValue === 'element') {\n            hasElementTranscludeDirective = true;\n            terminalPriority = directive.priority;\n            $template = $compileNode;\n            $compileNode = templateAttrs.$$element =\n                jqLite(compile.$$createComment(directiveName, templateAttrs[directiveName]));\n            compileNode = $compileNode[0];\n            replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n            // Support: Chrome < 50\n            // https://github.com/angular/angular.js/issues/14041\n\n            // In the versions of V8 prior to Chrome 50, the document fragment that is created\n            // in the `replaceWith` function is improperly garbage collected despite still\n            // being referenced by the `parentNode` property of all of the child nodes.  By adding\n            // a reference to the fragment via a different property, we can avoid that incorrect\n            // behavior.\n            // TODO: remove this line after Chrome 50 has been released\n            $template[0].$$parentNode = $template[0].parentNode;\n\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, terminalPriority,\n                                        replaceDirective && replaceDirective.name, {\n                                          // Don't pass in:\n                                          // - controllerDirectives - otherwise we'll create duplicates controllers\n                                          // - newIsolateScopeDirective or templateDirective - combining templates with\n                                          //   element transclusion doesn't make sense.\n                                          //\n                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n                                          // on the same element more than once.\n                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective\n                                        });\n          } else {\n\n            var slots = createMap();\n\n            if (!isObject(directiveValue)) {\n              $template = jqLite(jqLiteClone(compileNode)).contents();\n            } else {\n\n              // We have transclusion slots,\n              // collect them up, compile them and store their transclusion functions\n              $template = [];\n\n              var slotMap = createMap();\n              var filledSlots = createMap();\n\n              // Parse the element selectors\n              forEach(directiveValue, function(elementSelector, slotName) {\n                // If an element selector starts with a ? then it is optional\n                var optional = (elementSelector.charAt(0) === '?');\n                elementSelector = optional ? elementSelector.substring(1) : elementSelector;\n\n                slotMap[elementSelector] = slotName;\n\n                // We explicitly assign `null` since this implies that a slot was defined but not filled.\n                // Later when calling boundTransclusion functions with a slot name we only error if the\n                // slot is `undefined`\n                slots[slotName] = null;\n\n                // filledSlots contains `true` for all slots that are either optional or have been\n                // filled. This is used to check that we have not missed any required slots\n                filledSlots[slotName] = optional;\n              });\n\n              // Add the matching elements into their slot\n              forEach($compileNode.contents(), function(node) {\n                var slotName = slotMap[directiveNormalize(nodeName_(node))];\n                if (slotName) {\n                  filledSlots[slotName] = true;\n                  slots[slotName] = slots[slotName] || [];\n                  slots[slotName].push(node);\n                } else {\n                  $template.push(node);\n                }\n              });\n\n              // Check for required slots that were not filled\n              forEach(filledSlots, function(filled, slotName) {\n                if (!filled) {\n                  throw $compileMinErr('reqslot', 'Required transclusion slot `{0}` was not filled.', slotName);\n                }\n              });\n\n              for (var slotName in slots) {\n                if (slots[slotName]) {\n                  // Only define a transclusion function if the slot was filled\n                  slots[slotName] = compilationGenerator(mightHaveMultipleTransclusionError, slots[slotName], transcludeFn);\n                }\n              }\n            }\n\n            $compileNode.empty(); // clear contents\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, undefined,\n                undefined, { needsNewScope: directive.$$isolateScope || directive.$$newScope});\n            childTranscludeFn.$$slots = slots;\n          }\n        }\n\n        if (directive.template) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          directiveValue = (isFunction(directive.template))\n              ? directive.template($compileNode, templateAttrs)\n              : directive.template;\n\n          directiveValue = denormalizeTemplate(directiveValue);\n\n          if (directive.replace) {\n            replaceDirective = directive;\n            if (jqLiteIsTextNode(directiveValue)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  directiveName, '');\n            }\n\n            replaceWith(jqCollection, $compileNode, compileNode);\n\n            var newTemplateAttrs = {$attr: {}};\n\n            // combine directives from the original node and from the template:\n            // - take the array of directives for this element\n            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n            // - collect directives from the template and sort them by priority\n            // - combine directives as: processed + template + unprocessed\n            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n            if (newIsolateScopeDirective || newScopeDirective) {\n              // The original directive caused the current element to be replaced but this element\n              // also needs to have a new scope, so we need to tell the template directives\n              // that they would need to get their scope from further up, if they require transclusion\n              markDirectiveScope(templateDirectives, newIsolateScopeDirective, newScopeDirective);\n            }\n            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n            ii = directives.length;\n          } else {\n            $compileNode.html(directiveValue);\n          }\n        }\n\n        if (directive.templateUrl) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          if (directive.replace) {\n            replaceDirective = directive;\n          }\n\n          // eslint-disable-next-line no-func-assign\n          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n                controllerDirectives: controllerDirectives,\n                newScopeDirective: (newScopeDirective !== directive) && newScopeDirective,\n                newIsolateScopeDirective: newIsolateScopeDirective,\n                templateDirective: templateDirective,\n                nonTlbTranscludeDirective: nonTlbTranscludeDirective\n              });\n          ii = directives.length;\n        } else if (directive.compile) {\n          try {\n            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n            var context = directive.$$originalDirective || directive;\n            if (isFunction(linkFn)) {\n              addLinkFns(null, bind(context, linkFn), attrStart, attrEnd);\n            } else if (linkFn) {\n              addLinkFns(bind(context, linkFn.pre), bind(context, linkFn.post), attrStart, attrEnd);\n            }\n          } catch (e) {\n            $exceptionHandler(e, startingTag($compileNode));\n          }\n        }\n\n        if (directive.terminal) {\n          nodeLinkFn.terminal = true;\n          terminalPriority = Math.max(terminalPriority, directive.priority);\n        }\n\n      }\n\n      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n      nodeLinkFn.templateOnThisElement = hasTemplate;\n      nodeLinkFn.transclude = childTranscludeFn;\n\n      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n      // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n      return nodeLinkFn;\n\n      ////////////////////\n\n      function addLinkFns(pre, post, attrStart, attrEnd) {\n        if (pre) {\n          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n          pre.require = directive.require;\n          pre.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n          }\n          preLinkFns.push(pre);\n        }\n        if (post) {\n          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n          post.require = directive.require;\n          post.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            post = cloneAndAnnotateFn(post, {isolateScope: true});\n          }\n          postLinkFns.push(post);\n        }\n      }\n\n      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n        var i, ii, linkFn, isolateScope, controllerScope, elementControllers, transcludeFn, $element,\n            attrs, scopeBindingInfo;\n\n        if (compileNode === linkNode) {\n          attrs = templateAttrs;\n          $element = templateAttrs.$$element;\n        } else {\n          $element = jqLite(linkNode);\n          attrs = new Attributes($element, templateAttrs);\n        }\n\n        controllerScope = scope;\n        if (newIsolateScopeDirective) {\n          isolateScope = scope.$new(true);\n        } else if (newScopeDirective) {\n          controllerScope = scope.$parent;\n        }\n\n        if (boundTranscludeFn) {\n          // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`\n          // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`\n          transcludeFn = controllersBoundTransclude;\n          transcludeFn.$$boundTransclude = boundTranscludeFn;\n          // expose the slots on the `$transclude` function\n          transcludeFn.isSlotFilled = function(slotName) {\n            return !!boundTranscludeFn.$$slots[slotName];\n          };\n        }\n\n        if (controllerDirectives) {\n          elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective);\n        }\n\n        if (newIsolateScopeDirective) {\n          // Initialize isolate scope bindings for new isolate scope directive.\n          compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||\n              templateDirective === newIsolateScopeDirective.$$originalDirective)));\n          compile.$$addScopeClass($element, true);\n          isolateScope.$$isolateBindings =\n              newIsolateScopeDirective.$$isolateBindings;\n          scopeBindingInfo = initializeDirectiveBindings(scope, attrs, isolateScope,\n                                        isolateScope.$$isolateBindings,\n                                        newIsolateScopeDirective);\n          if (scopeBindingInfo.removeWatches) {\n            isolateScope.$on('$destroy', scopeBindingInfo.removeWatches);\n          }\n        }\n\n        // Initialize bindToController bindings\n        for (var name in elementControllers) {\n          var controllerDirective = controllerDirectives[name];\n          var controller = elementControllers[name];\n          var bindings = controllerDirective.$$bindings.bindToController;\n\n          if (preAssignBindingsEnabled) {\n            if (bindings) {\n              controller.bindingInfo =\n                initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n            } else {\n              controller.bindingInfo = {};\n            }\n\n            var controllerResult = controller();\n            if (controllerResult !== controller.instance) {\n              // If the controller constructor has a return value, overwrite the instance\n              // from setupControllers\n              controller.instance = controllerResult;\n              $element.data('$' + controllerDirective.name + 'Controller', controllerResult);\n              if (controller.bindingInfo.removeWatches) {\n                controller.bindingInfo.removeWatches();\n              }\n              controller.bindingInfo =\n                initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n            }\n          } else {\n            controller.instance = controller();\n            $element.data('$' + controllerDirective.name + 'Controller', controller.instance);\n            controller.bindingInfo =\n              initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n          }\n        }\n\n        // Bind the required controllers to the controller, if `require` is an object and `bindToController` is truthy\n        forEach(controllerDirectives, function(controllerDirective, name) {\n          var require = controllerDirective.require;\n          if (controllerDirective.bindToController && !isArray(require) && isObject(require)) {\n            extend(elementControllers[name].instance, getControllers(name, require, $element, elementControllers));\n          }\n        });\n\n        // Handle the init and destroy lifecycle hooks on all controllers that have them\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$onChanges)) {\n            try {\n              controllerInstance.$onChanges(controller.bindingInfo.initialChanges);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$onInit)) {\n            try {\n              controllerInstance.$onInit();\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$doCheck)) {\n            controllerScope.$watch(function() { controllerInstance.$doCheck(); });\n            controllerInstance.$doCheck();\n          }\n          if (isFunction(controllerInstance.$onDestroy)) {\n            controllerScope.$on('$destroy', function callOnDestroyHook() {\n              controllerInstance.$onDestroy();\n            });\n          }\n        });\n\n        // PRELINKING\n        for (i = 0, ii = preLinkFns.length; i < ii; i++) {\n          linkFn = preLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // RECURSION\n        // We only pass the isolate scope, if the isolate directive has a template,\n        // otherwise the child elements do not belong to the isolate directive.\n        var scopeToChild = scope;\n        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n          scopeToChild = isolateScope;\n        }\n        if (childLinkFn) {\n          childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n        }\n\n        // POSTLINKING\n        for (i = postLinkFns.length - 1; i >= 0; i--) {\n          linkFn = postLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // Trigger $postLink lifecycle hooks\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$postLink)) {\n            controllerInstance.$postLink();\n          }\n        });\n\n        // This is the function that is injected as `$transclude`.\n        // Note: all arguments are optional!\n        function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement, slotName) {\n          var transcludeControllers;\n          // No scope passed in:\n          if (!isScope(scope)) {\n            slotName = futureParentElement;\n            futureParentElement = cloneAttachFn;\n            cloneAttachFn = scope;\n            scope = undefined;\n          }\n\n          if (hasElementTranscludeDirective) {\n            transcludeControllers = elementControllers;\n          }\n          if (!futureParentElement) {\n            futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;\n          }\n          if (slotName) {\n            // slotTranscludeFn can be one of three things:\n            //  * a transclude function - a filled slot\n            //  * `null` - an optional slot that was not filled\n            //  * `undefined` - a slot that was not declared (i.e. invalid)\n            var slotTranscludeFn = boundTranscludeFn.$$slots[slotName];\n            if (slotTranscludeFn) {\n              return slotTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n            } else if (isUndefined(slotTranscludeFn)) {\n              throw $compileMinErr('noslot',\n               'No parent directive that requires a transclusion with slot name \"{0}\". ' +\n               'Element: {1}',\n               slotName, startingTag($element));\n            }\n          } else {\n            return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n          }\n        }\n      }\n    }\n\n    function getControllers(directiveName, require, $element, elementControllers) {\n      var value;\n\n      if (isString(require)) {\n        var match = require.match(REQUIRE_PREFIX_REGEXP);\n        var name = require.substring(match[0].length);\n        var inheritType = match[1] || match[3];\n        var optional = match[2] === '?';\n\n        //If only parents then start at the parent element\n        if (inheritType === '^^') {\n          $element = $element.parent();\n        //Otherwise attempt getting the controller from elementControllers in case\n        //the element is transcluded (and has no data) and to avoid .data if possible\n        } else {\n          value = elementControllers && elementControllers[name];\n          value = value && value.instance;\n        }\n\n        if (!value) {\n          var dataName = '$' + name + 'Controller';\n          value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName);\n        }\n\n        if (!value && !optional) {\n          throw $compileMinErr('ctreq',\n              'Controller \\'{0}\\', required by directive \\'{1}\\', can\\'t be found!',\n              name, directiveName);\n        }\n      } else if (isArray(require)) {\n        value = [];\n        for (var i = 0, ii = require.length; i < ii; i++) {\n          value[i] = getControllers(directiveName, require[i], $element, elementControllers);\n        }\n      } else if (isObject(require)) {\n        value = {};\n        forEach(require, function(controller, property) {\n          value[property] = getControllers(directiveName, controller, $element, elementControllers);\n        });\n      }\n\n      return value || null;\n    }\n\n    function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective) {\n      var elementControllers = createMap();\n      for (var controllerKey in controllerDirectives) {\n        var directive = controllerDirectives[controllerKey];\n        var locals = {\n          $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n          $element: $element,\n          $attrs: attrs,\n          $transclude: transcludeFn\n        };\n\n        var controller = directive.controller;\n        if (controller === '@') {\n          controller = attrs[directive.name];\n        }\n\n        var controllerInstance = $controller(controller, locals, true, directive.controllerAs);\n\n        // For directives with element transclusion the element is a comment.\n        // In this case .data will not attach any data.\n        // Instead, we save the controllers for the element in a local hash and attach to .data\n        // later, once we have the actual element.\n        elementControllers[directive.name] = controllerInstance;\n        $element.data('$' + directive.name + 'Controller', controllerInstance.instance);\n      }\n      return elementControllers;\n    }\n\n    // Depending upon the context in which a directive finds itself it might need to have a new isolated\n    // or child scope created. For instance:\n    // * if the directive has been pulled into a template because another directive with a higher priority\n    // asked for element transclusion\n    // * if the directive itself asks for transclusion but it is at the root of a template and the original\n    // element was replaced. See https://github.com/angular/angular.js/issues/12936\n    function markDirectiveScope(directives, isolateScope, newScope) {\n      for (var j = 0, jj = directives.length; j < jj; j++) {\n        directives[j] = inherit(directives[j], {$$isolateScope: isolateScope, $$newScope: newScope});\n      }\n    }\n\n    /**\n     * looks up the directive and decorates it with exception handling and proper parameters. We\n     * call this the boundDirective.\n     *\n     * @param {string} name name of the directive to look up.\n     * @param {string} location The directive must be found in specific format.\n     *   String containing any of theses characters:\n     *\n     *   * `E`: element name\n     *   * `A': attribute\n     *   * `C`: class\n     *   * `M`: comment\n     * @returns {boolean} true if directive was added.\n     */\n    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n                          endAttrName) {\n      if (name === ignoreDirective) return null;\n      var match = null;\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if ((isUndefined(maxPriority) || maxPriority > directive.priority) &&\n               directive.restrict.indexOf(location) !== -1) {\n            if (startAttrName) {\n              directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n            }\n            if (!directive.$$bindings) {\n              var bindings = directive.$$bindings =\n                  parseDirectiveBindings(directive, directive.name);\n              if (isObject(bindings.isolateScope)) {\n                directive.$$isolateBindings = bindings.isolateScope;\n              }\n            }\n            tDirectives.push(directive);\n            match = directive;\n          }\n        }\n      }\n      return match;\n    }\n\n\n    /**\n     * looks up the directive and returns true if it is a multi-element directive,\n     * and therefore requires DOM nodes between -start and -end markers to be grouped\n     * together.\n     *\n     * @param {string} name name of the directive to look up.\n     * @returns true if directive was registered as multi-element.\n     */\n    function directiveIsMultiElement(name) {\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if (directive.multiElement) {\n            return true;\n          }\n        }\n      }\n      return false;\n    }\n\n    /**\n     * When the element is replaced with HTML template then the new attributes\n     * on the template need to be merged with the existing attributes in the DOM.\n     * The desired effect is to have both of the attributes present.\n     *\n     * @param {object} dst destination attributes (original DOM)\n     * @param {object} src source attributes (from the directive template)\n     */\n    function mergeTemplateAttributes(dst, src) {\n      var srcAttr = src.$attr,\n          dstAttr = dst.$attr;\n\n      // reapply the old attributes to the new element\n      forEach(dst, function(value, key) {\n        if (key.charAt(0) !== '$') {\n          if (src[key] && src[key] !== value) {\n            if (value.length) {\n              value += (key === 'style' ? ';' : ' ') + src[key];\n            } else {\n              value = src[key];\n            }\n          }\n          dst.$set(key, value, true, srcAttr[key]);\n        }\n      });\n\n      // copy the new attributes on the old attrs object\n      forEach(src, function(value, key) {\n        // Check if we already set this attribute in the loop above.\n        // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n        // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n        // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n        if (!dst.hasOwnProperty(key) && key.charAt(0) !== '$') {\n          dst[key] = value;\n\n          if (key !== 'class' && key !== 'style') {\n            dstAttr[key] = srcAttr[key];\n          }\n        }\n      });\n    }\n\n\n    function compileTemplateUrl(directives, $compileNode, tAttrs,\n        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n      var linkQueue = [],\n          afterTemplateNodeLinkFn,\n          afterTemplateChildLinkFn,\n          beforeTemplateCompileNode = $compileNode[0],\n          origAsyncDirective = directives.shift(),\n          derivedSyncDirective = inherit(origAsyncDirective, {\n            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n          }),\n          templateUrl = (isFunction(origAsyncDirective.templateUrl))\n              ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n              : origAsyncDirective.templateUrl,\n          templateNamespace = origAsyncDirective.templateNamespace;\n\n      $compileNode.empty();\n\n      $templateRequest(templateUrl)\n        .then(function(content) {\n          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n          content = denormalizeTemplate(content);\n\n          if (origAsyncDirective.replace) {\n            if (jqLiteIsTextNode(content)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(templateNamespace, trim(content)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  origAsyncDirective.name, templateUrl);\n            }\n\n            tempTemplateAttrs = {$attr: {}};\n            replaceWith($rootElement, $compileNode, compileNode);\n            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n            if (isObject(origAsyncDirective.scope)) {\n              // the original directive that caused the template to be loaded async required\n              // an isolate scope\n              markDirectiveScope(templateDirectives, true);\n            }\n            directives = templateDirectives.concat(directives);\n            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n          } else {\n            compileNode = beforeTemplateCompileNode;\n            $compileNode.html(content);\n          }\n\n          directives.unshift(derivedSyncDirective);\n\n          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n              previousCompileContext);\n          forEach($rootElement, function(node, i) {\n            if (node === compileNode) {\n              $rootElement[i] = $compileNode[0];\n            }\n          });\n          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n          while (linkQueue.length) {\n            var scope = linkQueue.shift(),\n                beforeTemplateLinkNode = linkQueue.shift(),\n                linkRootElement = linkQueue.shift(),\n                boundTranscludeFn = linkQueue.shift(),\n                linkNode = $compileNode[0];\n\n            if (scope.$$destroyed) continue;\n\n            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n              var oldClasses = beforeTemplateLinkNode.className;\n\n              if (!(previousCompileContext.hasElementTranscludeDirective &&\n                  origAsyncDirective.replace)) {\n                // it was cloned therefore we have to clone as well.\n                linkNode = jqLiteClone(compileNode);\n              }\n              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n              // Copy in CSS classes from original node\n              safeAddClass(jqLite(linkNode), oldClasses);\n            }\n            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n            } else {\n              childBoundTranscludeFn = boundTranscludeFn;\n            }\n            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n              childBoundTranscludeFn);\n          }\n          linkQueue = null;\n        }).catch(function(error) {\n          if (isError(error)) {\n            $exceptionHandler(error);\n          }\n        });\n\n      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n        var childBoundTranscludeFn = boundTranscludeFn;\n        if (scope.$$destroyed) return;\n        if (linkQueue) {\n          linkQueue.push(scope,\n                         node,\n                         rootElement,\n                         childBoundTranscludeFn);\n        } else {\n          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n          }\n          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n        }\n      };\n    }\n\n\n    /**\n     * Sorting function for bound directives.\n     */\n    function byPriority(a, b) {\n      var diff = b.priority - a.priority;\n      if (diff !== 0) return diff;\n      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n      return a.index - b.index;\n    }\n\n    function assertNoDuplicate(what, previousDirective, directive, element) {\n\n      function wrapModuleNameIfDefined(moduleName) {\n        return moduleName ?\n          (' (module: ' + moduleName + ')') :\n          '';\n      }\n\n      if (previousDirective) {\n        throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}',\n            previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName),\n            directive.name, wrapModuleNameIfDefined(directive.$$moduleName), what, startingTag(element));\n      }\n    }\n\n\n    function addTextInterpolateDirective(directives, text) {\n      var interpolateFn = $interpolate(text, true);\n      if (interpolateFn) {\n        directives.push({\n          priority: 0,\n          compile: function textInterpolateCompileFn(templateNode) {\n            var templateNodeParent = templateNode.parent(),\n                hasCompileParent = !!templateNodeParent.length;\n\n            // When transcluding a template that has bindings in the root\n            // we don't have a parent and thus need to add the class during linking fn.\n            if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);\n\n            return function textInterpolateLinkFn(scope, node) {\n              var parent = node.parent();\n              if (!hasCompileParent) compile.$$addBindingClass(parent);\n              compile.$$addBindingInfo(parent, interpolateFn.expressions);\n              scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n                node[0].nodeValue = value;\n              });\n            };\n          }\n        });\n      }\n    }\n\n\n    function wrapTemplate(type, template) {\n      type = lowercase(type || 'html');\n      switch (type) {\n      case 'svg':\n      case 'math':\n        var wrapper = window.document.createElement('div');\n        wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>';\n        return wrapper.childNodes[0].childNodes;\n      default:\n        return template;\n      }\n    }\n\n\n    function getTrustedContext(node, attrNormalizedName) {\n      if (attrNormalizedName === 'srcdoc') {\n        return $sce.HTML;\n      }\n      var tag = nodeName_(node);\n      // All tags with src attributes require a RESOURCE_URL value, except for\n      // img and various html5 media tags.\n      if (attrNormalizedName === 'src' || attrNormalizedName === 'ngSrc') {\n        if (['img', 'video', 'audio', 'source', 'track'].indexOf(tag) === -1) {\n          return $sce.RESOURCE_URL;\n        }\n      // maction[xlink:href] can source SVG.  It's not limited to <maction>.\n      } else if (attrNormalizedName === 'xlinkHref' ||\n          (tag === 'form' && attrNormalizedName === 'action') ||\n          // links can be stylesheets or imports, which can run script in the current origin\n          (tag === 'link' && attrNormalizedName === 'href')\n      ) {\n        return $sce.RESOURCE_URL;\n      }\n    }\n\n\n    function addAttrInterpolateDirective(node, directives, value, name, isNgAttr) {\n      var trustedContext = getTrustedContext(node, name);\n      var mustHaveExpression = !isNgAttr;\n      var allOrNothing = ALL_OR_NOTHING_ATTRS[name] || isNgAttr;\n\n      var interpolateFn = $interpolate(value, mustHaveExpression, trustedContext, allOrNothing);\n\n      // no interpolation found -> ignore\n      if (!interpolateFn) return;\n\n      if (name === 'multiple' && nodeName_(node) === 'select') {\n        throw $compileMinErr('selmulti',\n            'Binding to the \\'multiple\\' attribute is not supported. Element: {0}',\n            startingTag(node));\n      }\n\n      if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n        throw $compileMinErr('nodomevents',\n            'Interpolations for HTML DOM event attributes are disallowed.  Please use the ' +\n                'ng- versions (such as ng-click instead of onclick) instead.');\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function() {\n            return {\n              pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n                var $$observers = (attr.$$observers || (attr.$$observers = createMap()));\n\n                // If the attribute has changed since last $interpolate()ed\n                var newValue = attr[name];\n                if (newValue !== value) {\n                  // we need to interpolate again since the attribute value has been updated\n                  // (e.g. by another directive's compile function)\n                  // ensure unset/empty values make interpolateFn falsy\n                  interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);\n                  value = newValue;\n                }\n\n                // if attribute was updated so that there is no interpolation going on we don't want to\n                // register any observers\n                if (!interpolateFn) return;\n\n                // initialize attr object so that it's ready in case we need the value for isolate\n                // scope initialization, otherwise the value would not be available from isolate\n                // directive's linking fn during linking phase\n                attr[name] = interpolateFn(scope);\n\n                ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n                (attr.$$observers && attr.$$observers[name].$$scope || scope).\n                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n                    //special case for class attribute addition + removal\n                    //so that class changes can tap into the animation\n                    //hooks provided by the $animate service. Be sure to\n                    //skip animations when the first digest occurs (when\n                    //both the new and the old values are the same) since\n                    //the CSS classes are the non-interpolated values\n                    if (name === 'class' && newValue !== oldValue) {\n                      attr.$updateClass(newValue, oldValue);\n                    } else {\n                      attr.$set(name, newValue);\n                    }\n                  });\n              }\n            };\n          }\n      });\n    }\n\n\n    /**\n     * This is a special jqLite.replaceWith, which can replace items which\n     * have no parents, provided that the containing jqLite collection is provided.\n     *\n     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n     *                               in the root of the tree.\n     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n     *                                  the shell, but replace its DOM node reference.\n     * @param {Node} newNode The new DOM node.\n     */\n    function replaceWith($rootElement, elementsToRemove, newNode) {\n      var firstElementToRemove = elementsToRemove[0],\n          removeCount = elementsToRemove.length,\n          parent = firstElementToRemove.parentNode,\n          i, ii;\n\n      if ($rootElement) {\n        for (i = 0, ii = $rootElement.length; i < ii; i++) {\n          if ($rootElement[i] === firstElementToRemove) {\n            $rootElement[i++] = newNode;\n            for (var j = i, j2 = j + removeCount - 1,\n                     jj = $rootElement.length;\n                 j < jj; j++, j2++) {\n              if (j2 < jj) {\n                $rootElement[j] = $rootElement[j2];\n              } else {\n                delete $rootElement[j];\n              }\n            }\n            $rootElement.length -= removeCount - 1;\n\n            // If the replaced element is also the jQuery .context then replace it\n            // .context is a deprecated jQuery api, so we should set it only when jQuery set it\n            // http://api.jquery.com/context/\n            if ($rootElement.context === firstElementToRemove) {\n              $rootElement.context = newNode;\n            }\n            break;\n          }\n        }\n      }\n\n      if (parent) {\n        parent.replaceChild(newNode, firstElementToRemove);\n      }\n\n      // Append all the `elementsToRemove` to a fragment. This will...\n      // - remove them from the DOM\n      // - allow them to still be traversed with .nextSibling\n      // - allow a single fragment.qSA to fetch all elements being removed\n      var fragment = window.document.createDocumentFragment();\n      for (i = 0; i < removeCount; i++) {\n        fragment.appendChild(elementsToRemove[i]);\n      }\n\n      if (jqLite.hasData(firstElementToRemove)) {\n        // Copy over user data (that includes AngularJS's $scope etc.). Don't copy private\n        // data here because there's no public interface in jQuery to do that and copying over\n        // event listeners (which is the main use of private data) wouldn't work anyway.\n        jqLite.data(newNode, jqLite.data(firstElementToRemove));\n\n        // Remove $destroy event listeners from `firstElementToRemove`\n        jqLite(firstElementToRemove).off('$destroy');\n      }\n\n      // Cleanup any data/listeners on the elements and children.\n      // This includes invoking the $destroy event on any elements with listeners.\n      jqLite.cleanData(fragment.querySelectorAll('*'));\n\n      // Update the jqLite collection to only contain the `newNode`\n      for (i = 1; i < removeCount; i++) {\n        delete elementsToRemove[i];\n      }\n      elementsToRemove[0] = newNode;\n      elementsToRemove.length = 1;\n    }\n\n\n    function cloneAndAnnotateFn(fn, annotation) {\n      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n    }\n\n\n    function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {\n      try {\n        linkFn(scope, $element, attrs, controllers, transcludeFn);\n      } catch (e) {\n        $exceptionHandler(e, startingTag($element));\n      }\n    }\n\n    function strictBindingsCheck(attrName, directiveName) {\n      if (strictComponentBindingsEnabled) {\n        throw $compileMinErr('missingattr',\n          'Attribute \\'{0}\\' of \\'{1}\\' is non-optional and must be set!',\n          attrName, directiveName);\n      }\n    }\n\n    // Set up $watches for isolate scope and controller bindings.\n    function initializeDirectiveBindings(scope, attrs, destination, bindings, directive) {\n      var removeWatchCollection = [];\n      var initialChanges = {};\n      var changes;\n\n      forEach(bindings, function initializeBinding(definition, scopeName) {\n        var attrName = definition.attrName,\n        optional = definition.optional,\n        mode = definition.mode, // @, =, <, or &\n        lastValue,\n        parentGet, parentSet, compare, removeWatch;\n\n        switch (mode) {\n\n          case '@':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              strictBindingsCheck(attrName, directive.name);\n              destination[scopeName] = attrs[attrName] = undefined;\n\n            }\n            removeWatch = attrs.$observe(attrName, function(value) {\n              if (isString(value) || isBoolean(value)) {\n                var oldValue = destination[scopeName];\n                recordChanges(scopeName, value, oldValue);\n                destination[scopeName] = value;\n              }\n            });\n            attrs.$$observers[attrName].$$scope = scope;\n            lastValue = attrs[attrName];\n            if (isString(lastValue)) {\n              // If the attribute has been provided then we trigger an interpolation to ensure\n              // the value is there for use in the link fn\n              destination[scopeName] = $interpolate(lastValue)(scope);\n            } else if (isBoolean(lastValue)) {\n              // If the attributes is one of the BOOLEAN_ATTR then AngularJS will have converted\n              // the value to boolean rather than a string, so we special case this situation\n              destination[scopeName] = lastValue;\n            }\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '=':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              strictBindingsCheck(attrName, directive.name);\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            if (parentGet.literal) {\n              compare = equals;\n            } else {\n              compare = simpleCompare;\n            }\n            parentSet = parentGet.assign || function() {\n              // reset the change, or we will throw this exception on every $digest\n              lastValue = destination[scopeName] = parentGet(scope);\n              throw $compileMinErr('nonassign',\n                  'Expression \\'{0}\\' in attribute \\'{1}\\' used with directive \\'{2}\\' is non-assignable!',\n                  attrs[attrName], attrName, directive.name);\n            };\n            lastValue = destination[scopeName] = parentGet(scope);\n            var parentValueWatch = function parentValueWatch(parentValue) {\n              if (!compare(parentValue, destination[scopeName])) {\n                // we are out of sync and need to copy\n                if (!compare(parentValue, lastValue)) {\n                  // parent changed and it has precedence\n                  destination[scopeName] = parentValue;\n                } else {\n                  // if the parent can be assigned then do so\n                  parentSet(scope, parentValue = destination[scopeName]);\n                }\n              }\n              lastValue = parentValue;\n              return lastValue;\n            };\n            parentValueWatch.$stateful = true;\n            if (definition.collection) {\n              removeWatch = scope.$watchCollection(attrs[attrName], parentValueWatch);\n            } else {\n              removeWatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);\n            }\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '<':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              strictBindingsCheck(attrName, directive.name);\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            var deepWatch = parentGet.literal;\n\n            var initialValue = destination[scopeName] = parentGet(scope);\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n\n            removeWatch = scope.$watch(parentGet, function parentValueWatchAction(newValue, oldValue) {\n              if (oldValue === newValue) {\n                if (oldValue === initialValue || (deepWatch && equals(oldValue, initialValue))) {\n                  return;\n                }\n                oldValue = initialValue;\n              }\n              recordChanges(scopeName, newValue, oldValue);\n              destination[scopeName] = newValue;\n            }, deepWatch);\n\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '&':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              strictBindingsCheck(attrName, directive.name);\n            }\n            // Don't assign Object.prototype method to scope\n            parentGet = attrs.hasOwnProperty(attrName) ? $parse(attrs[attrName]) : noop;\n\n            // Don't assign noop to destination if expression is not valid\n            if (parentGet === noop && optional) break;\n\n            destination[scopeName] = function(locals) {\n              return parentGet(scope, locals);\n            };\n            break;\n        }\n      });\n\n      function recordChanges(key, currentValue, previousValue) {\n        if (isFunction(destination.$onChanges) && !simpleCompare(currentValue, previousValue)) {\n          // If we have not already scheduled the top level onChangesQueue handler then do so now\n          if (!onChangesQueue) {\n            scope.$$postDigest(flushOnChangesQueue);\n            onChangesQueue = [];\n          }\n          // If we have not already queued a trigger of onChanges for this controller then do so now\n          if (!changes) {\n            changes = {};\n            onChangesQueue.push(triggerOnChangesHook);\n          }\n          // If the has been a change on this property already then we need to reuse the previous value\n          if (changes[key]) {\n            previousValue = changes[key].previousValue;\n          }\n          // Store this change\n          changes[key] = new SimpleChange(previousValue, currentValue);\n        }\n      }\n\n      function triggerOnChangesHook() {\n        destination.$onChanges(changes);\n        // Now clear the changes so that we schedule onChanges when more changes arrive\n        changes = undefined;\n      }\n\n      return {\n        initialChanges: initialChanges,\n        removeWatches: removeWatchCollection.length && function removeWatches() {\n          for (var i = 0, ii = removeWatchCollection.length; i < ii; ++i) {\n            removeWatchCollection[i]();\n          }\n        }\n      };\n    }\n  }];\n}\n\nfunction SimpleChange(previous, current) {\n  this.previousValue = previous;\n  this.currentValue = current;\n}\nSimpleChange.prototype.isFirstChange = function() { return this.previousValue === _UNINITIALIZED_VALUE; };\n\n\nvar PREFIX_REGEXP = /^((?:x|data)[:\\-_])/i;\nvar SPECIAL_CHARS_REGEXP = /[:\\-_]+(.)/g;\n\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n  return name\n    .replace(PREFIX_REGEXP, '')\n    .replace(SPECIAL_CHARS_REGEXP, function(_, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    });\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in AngularJS:\n *\n * ```\n *    <span ng:bind=\"a\" ng-bind=\"a\" data-ng-bind=\"a\" x-ng-bind=\"a\">\n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n *          property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n  /* angular.Scope */ scope,\n  /* NodeList */ nodeList,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction directiveLinkingFn(\n  /* nodesetLinkingFn */ nodesetLinkingFn,\n  /* angular.Scope */ scope,\n  /* Node */ node,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction tokenDifference(str1, str2) {\n  var values = '',\n      tokens1 = str1.split(/\\s+/),\n      tokens2 = str2.split(/\\s+/);\n\n  outer:\n  for (var i = 0; i < tokens1.length; i++) {\n    var token = tokens1[i];\n    for (var j = 0; j < tokens2.length; j++) {\n      if (token === tokens2[j]) continue outer;\n    }\n    values += (values.length > 0 ? ' ' : '') + token;\n  }\n  return values;\n}\n\nfunction removeComments(jqNodes) {\n  jqNodes = jqLite(jqNodes);\n  var i = jqNodes.length;\n\n  if (i <= 1) {\n    return jqNodes;\n  }\n\n  while (i--) {\n    var node = jqNodes[i];\n    if (node.nodeType === NODE_TYPE_COMMENT ||\n       (node.nodeType === NODE_TYPE_TEXT && node.nodeValue.trim() === '')) {\n         splice.call(jqNodes, i, 1);\n    }\n  }\n  return jqNodes;\n}\n\nvar $controllerMinErr = minErr('$controller');\n\n\nvar CNTRL_REG = /^(\\S+)(\\s+as\\s+([\\w$]+))?$/;\nfunction identifierForController(controller, ident) {\n  if (ident && isString(ident)) return ident;\n  if (isString(controller)) {\n    var match = CNTRL_REG.exec(controller);\n    if (match) return match[3];\n  }\n}\n\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @this\n *\n * @description\n * The {@link ng.$controller $controller service} is used by AngularJS to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n  var controllers = {},\n      globals = false;\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#has\n   * @param {string} name Controller name to check.\n   */\n  this.has = function(name) {\n    return controllers.hasOwnProperty(name);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#register\n   * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n   *    the names and the values are the constructors.\n   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n   *    annotations in the array notation).\n   */\n  this.register = function(name, constructor) {\n    assertNotHasOwnProperty(name, 'controller');\n    if (isObject(name)) {\n      extend(controllers, name);\n    } else {\n      controllers[name] = constructor;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#allowGlobals\n   * @description If called, allows `$controller` to find controller constructors on `window`\n   *\n   * @deprecated\n   * sinceVersion=\"v1.3.0\"\n   * removeVersion=\"v1.7.0\"\n   * This method of finding controllers has been deprecated.\n   */\n  this.allowGlobals = function() {\n    globals = true;\n  };\n\n\n  this.$get = ['$injector', '$window', function($injector, $window) {\n\n    /**\n     * @ngdoc service\n     * @name $controller\n     * @requires $injector\n     *\n     * @param {Function|string} constructor If called with a function then it's considered to be the\n     *    controller constructor function. Otherwise it's considered to be a string which is used\n     *    to retrieve the controller constructor using the following steps:\n     *\n     *    * check if a controller with given name is registered via `$controllerProvider`\n     *    * check if evaluating the string on the current scope returns a constructor\n     *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n     *      `window` object (deprecated, not recommended)\n     *\n     *    The string can use the `controller as property` syntax, where the controller instance is published\n     *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n     *    to work correctly.\n     *\n     * @param {Object} locals Injection locals for Controller.\n     * @return {Object} Instance of given controller.\n     *\n     * @description\n     * `$controller` service is responsible for instantiating controllers.\n     *\n     * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n     */\n    return function $controller(expression, locals, later, ident) {\n      // PRIVATE API:\n      //   param `later` --- indicates that the controller's constructor is invoked at a later time.\n      //                     If true, $controller will allocate the object with the correct\n      //                     prototype chain, but will not invoke the controller until a returned\n      //                     callback is invoked.\n      //   param `ident` --- An optional label which overrides the label parsed from the controller\n      //                     expression, if any.\n      var instance, match, constructor, identifier;\n      later = later === true;\n      if (ident && isString(ident)) {\n        identifier = ident;\n      }\n\n      if (isString(expression)) {\n        match = expression.match(CNTRL_REG);\n        if (!match) {\n          throw $controllerMinErr('ctrlfmt',\n            'Badly formed controller string \\'{0}\\'. ' +\n            'Must match `__name__ as __id__` or `__name__`.', expression);\n        }\n        constructor = match[1];\n        identifier = identifier || match[3];\n        expression = controllers.hasOwnProperty(constructor)\n            ? controllers[constructor]\n            : getter(locals.$scope, constructor, true) ||\n                (globals ? getter($window, constructor, true) : undefined);\n\n        if (!expression) {\n          throw $controllerMinErr('ctrlreg',\n            'The controller with the name \\'{0}\\' is not registered.', constructor);\n        }\n\n        assertArgFn(expression, constructor, true);\n      }\n\n      if (later) {\n        // Instantiate controller later:\n        // This machinery is used to create an instance of the object before calling the\n        // controller's constructor itself.\n        //\n        // This allows properties to be added to the controller before the constructor is\n        // invoked. Primarily, this is used for isolate scope bindings in $compile.\n        //\n        // This feature is not intended for use by applications, and is thus not documented\n        // publicly.\n        // Object creation: http://jsperf.com/create-constructor/2\n        var controllerPrototype = (isArray(expression) ?\n          expression[expression.length - 1] : expression).prototype;\n        instance = Object.create(controllerPrototype || null);\n\n        if (identifier) {\n          addIdentifier(locals, identifier, instance, constructor || expression.name);\n        }\n\n        return extend(function $controllerInit() {\n          var result = $injector.invoke(expression, instance, locals, constructor);\n          if (result !== instance && (isObject(result) || isFunction(result))) {\n            instance = result;\n            if (identifier) {\n              // If result changed, re-assign controllerAs value to scope.\n              addIdentifier(locals, identifier, instance, constructor || expression.name);\n            }\n          }\n          return instance;\n        }, {\n          instance: instance,\n          identifier: identifier\n        });\n      }\n\n      instance = $injector.instantiate(expression, locals, constructor);\n\n      if (identifier) {\n        addIdentifier(locals, identifier, instance, constructor || expression.name);\n      }\n\n      return instance;\n    };\n\n    function addIdentifier(locals, identifier, instance, name) {\n      if (!(locals && isObject(locals.$scope))) {\n        throw minErr('$controller')('noscp',\n          'Cannot export controller \\'{0}\\' as \\'{1}\\'! No $scope object provided via `locals`.',\n          name, identifier);\n      }\n\n      locals.$scope[identifier] = instance;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n * @this\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n   <example module=\"documentExample\" name=\"document\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <p>$document title: <b ng-bind=\"title\"></b></p>\n         <p>window.document title: <b ng-bind=\"windowTitle\"></b></p>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('documentExample', [])\n         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {\n           $scope.title = $document[0].title;\n           $scope.windowTitle = angular.element(window.document)[0].title;\n         }]);\n     </file>\n   </example>\n */\nfunction $DocumentProvider() {\n  this.$get = ['$window', function(window) {\n    return jqLite(window.document);\n  }];\n}\n\n\n/**\n * @private\n * @this\n * Listens for document visibility change and makes the current status accessible.\n */\nfunction $$IsDocumentHiddenProvider() {\n  this.$get = ['$document', '$rootScope', function($document, $rootScope) {\n    var doc = $document[0];\n    var hidden = doc && doc.hidden;\n\n    $document.on('visibilitychange', changeListener);\n\n    $rootScope.$on('$destroy', function() {\n      $document.off('visibilitychange', changeListener);\n    });\n\n    function changeListener() {\n      hidden = doc.hidden;\n    }\n\n    return function() {\n      return hidden;\n    };\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n * @requires ng.$log\n * @this\n *\n * @description\n * Any uncaught exception in AngularJS expressions is delegated to this service.\n * The default implementation simply delegates to `$log.error` which logs it into\n * the browser console.\n *\n * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by\n * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.\n *\n * ## Example:\n *\n * The example below will overwrite the default `$exceptionHandler` in order to (a) log uncaught\n * errors to the backend for later inspection by the developers and (b) to use `$log.warn()` instead\n * of `$log.error()`.\n *\n * ```js\n *   angular.\n *     module('exceptionOverwrite', []).\n *     factory('$exceptionHandler', ['$log', 'logErrorsToBackend', function($log, logErrorsToBackend) {\n *       return function myExceptionHandler(exception, cause) {\n *         logErrorsToBackend(exception, cause);\n *         $log.warn(exception, cause);\n *       };\n *     }]);\n * ```\n *\n * <hr />\n * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`\n * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}\n * (unless executed during a digest).\n *\n * If you wish, you can manually delegate exceptions, e.g.\n * `try { ... } catch(e) { $exceptionHandler(e); }`\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause Optional information about the context in which\n *       the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n  this.$get = ['$log', function($log) {\n    return function(exception, cause) {\n      $log.error.apply($log, arguments);\n    };\n  }];\n}\n\nvar $$ForceReflowProvider = /** @this */ function() {\n  this.$get = ['$document', function($document) {\n    return function(domNode) {\n      //the line below will force the browser to perform a repaint so\n      //that all the animated elements within the animation frame will\n      //be properly updated and drawn on screen. This is required to\n      //ensure that the preparation animation is properly flushed so that\n      //the active state picks up from there. DO NOT REMOVE THIS LINE.\n      //DO NOT OPTIMIZE THIS LINE. THE MINIFIER WILL REMOVE IT OTHERWISE WHICH\n      //WILL RESULT IN AN UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND\n      //WILL TAKE YEARS AWAY FROM YOUR LIFE.\n      if (domNode) {\n        if (!domNode.nodeType && domNode instanceof jqLite) {\n          domNode = domNode[0];\n        }\n      } else {\n        domNode = $document[0].body;\n      }\n      return domNode.offsetWidth + 1;\n    };\n  }];\n};\n\nvar APPLICATION_JSON = 'application/json';\nvar CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};\nvar JSON_START = /^\\[|^\\{(?!\\{)/;\nvar JSON_ENDS = {\n  '[': /]$/,\n  '{': /}$/\n};\nvar JSON_PROTECTION_PREFIX = /^\\)]\\}',?\\n/;\nvar $httpMinErr = minErr('$http');\n\nfunction serializeValue(v) {\n  if (isObject(v)) {\n    return isDate(v) ? v.toISOString() : toJson(v);\n  }\n  return v;\n}\n\n\n/** @this */\nfunction $HttpParamSerializerProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializer\n   * @description\n   *\n   * Default {@link $http `$http`} params serializer that converts objects to strings\n   * according to the following rules:\n   *\n   * * `{'foo': 'bar'}` results in `foo=bar`\n   * * `{'foo': Date.now()}` results in `foo=2015-04-01T09%3A50%3A49.262Z` (`toISOString()` and encoded representation of a Date object)\n   * * `{'foo': ['bar', 'baz']}` results in `foo=bar&foo=baz` (repeated key for each array element)\n   * * `{'foo': {'bar':'baz'}}` results in `foo=%7B%22bar%22%3A%22baz%22%7D` (stringified and encoded representation of an object)\n   *\n   * Note that serializer will sort the request parameters alphabetically.\n   */\n\n  this.$get = function() {\n    return function ngParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      forEachSorted(params, function(value, key) {\n        if (value === null || isUndefined(value) || isFunction(value)) return;\n        if (isArray(value)) {\n          forEach(value, function(v) {\n            parts.push(encodeUriQuery(key)  + '=' + encodeUriQuery(serializeValue(v)));\n          });\n        } else {\n          parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(value)));\n        }\n      });\n\n      return parts.join('&');\n    };\n  };\n}\n\n/** @this */\nfunction $HttpParamSerializerJQLikeProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializerJQLike\n   *\n   * @description\n   *\n   * Alternative {@link $http `$http`} params serializer that follows\n   * jQuery's [`param()`](http://api.jquery.com/jquery.param/) method logic.\n   * The serializer will also sort the params alphabetically.\n   *\n   * To use it for serializing `$http` request parameters, set it as the `paramSerializer` property:\n   *\n   * ```js\n   * $http({\n   *   url: myUrl,\n   *   method: 'GET',\n   *   params: myParams,\n   *   paramSerializer: '$httpParamSerializerJQLike'\n   * });\n   * ```\n   *\n   * It is also possible to set it as the default `paramSerializer` in the\n   * {@link $httpProvider#defaults `$httpProvider`}.\n   *\n   * Additionally, you can inject the serializer and use it explicitly, for example to serialize\n   * form data for submission:\n   *\n   * ```js\n   * .controller(function($http, $httpParamSerializerJQLike) {\n   *   //...\n   *\n   *   $http({\n   *     url: myUrl,\n   *     method: 'POST',\n   *     data: $httpParamSerializerJQLike(myData),\n   *     headers: {\n   *       'Content-Type': 'application/x-www-form-urlencoded'\n   *     }\n   *   });\n   *\n   * });\n   * ```\n   *\n   */\n  this.$get = function() {\n    return function jQueryLikeParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      serialize(params, '', true);\n      return parts.join('&');\n\n      function serialize(toSerialize, prefix, topLevel) {\n        if (toSerialize === null || isUndefined(toSerialize)) return;\n        if (isArray(toSerialize)) {\n          forEach(toSerialize, function(value, index) {\n            serialize(value, prefix + '[' + (isObject(value) ? index : '') + ']');\n          });\n        } else if (isObject(toSerialize) && !isDate(toSerialize)) {\n          forEachSorted(toSerialize, function(value, key) {\n            serialize(value, prefix +\n                (topLevel ? '' : '[') +\n                key +\n                (topLevel ? '' : ']'));\n          });\n        } else {\n          parts.push(encodeUriQuery(prefix) + '=' + encodeUriQuery(serializeValue(toSerialize)));\n        }\n      }\n    };\n  };\n}\n\nfunction defaultHttpResponseTransform(data, headers) {\n  if (isString(data)) {\n    // Strip json vulnerability protection prefix and trim whitespace\n    var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();\n\n    if (tempData) {\n      var contentType = headers('Content-Type');\n      var hasJsonContentType = contentType && (contentType.indexOf(APPLICATION_JSON) === 0);\n\n      if (hasJsonContentType || isJsonLike(tempData)) {\n        try {\n          data = fromJson(tempData);\n        } catch (e) {\n          if (!hasJsonContentType) {\n            return data;\n          }\n          throw $httpMinErr('baddata', 'Data must be a valid JSON object. Received: \"{0}\". ' +\n          'Parse error: \"{1}\"', data, e);\n        }\n      }\n    }\n  }\n\n  return data;\n}\n\nfunction isJsonLike(str) {\n    var jsonStart = str.match(JSON_START);\n    return jsonStart && JSON_ENDS[jsonStart[0]].test(str);\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n  var parsed = createMap(), i;\n\n  function fillInParsed(key, val) {\n    if (key) {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  }\n\n  if (isString(headers)) {\n    forEach(headers.split('\\n'), function(line) {\n      i = line.indexOf(':');\n      fillInParsed(lowercase(trim(line.substr(0, i))), trim(line.substr(i + 1)));\n    });\n  } else if (isObject(headers)) {\n    forEach(headers, function(headerVal, headerKey) {\n      fillInParsed(lowercase(headerKey), trim(headerVal));\n    });\n  }\n\n  return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n *   - if called with an argument returns a single header value or null\n *   - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n  var headersObj;\n\n  return function(name) {\n    if (!headersObj) headersObj =  parseHeaders(headers);\n\n    if (name) {\n      var value = headersObj[lowercase(name)];\n      if (value === undefined) {\n        value = null;\n      }\n      return value;\n    }\n\n    return headersObj;\n  };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers HTTP headers getter fn.\n * @param {number} status HTTP status code of the response.\n * @param {(Function|Array.<Function>)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, status, fns) {\n  if (isFunction(fns)) {\n    return fns(data, headers, status);\n  }\n\n  forEach(fns, function(fn) {\n    data = fn(data, headers, status);\n  });\n\n  return data;\n}\n\n\nfunction isSuccess(status) {\n  return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @this\n *\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n */\nfunction $HttpProvider() {\n  /**\n   * @ngdoc property\n   * @name $httpProvider#defaults\n   * @description\n   *\n   * Object containing default values for all {@link ng.$http $http} requests.\n   *\n   * - **`defaults.cache`** - {boolean|Object} - A boolean value or object created with\n   * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of HTTP responses\n   * by default. See {@link $http#caching $http Caching} for more information.\n   *\n   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n   * setting default headers.\n   *     - **`defaults.headers.common`**\n   *     - **`defaults.headers.post`**\n   *     - **`defaults.headers.put`**\n   *     - **`defaults.headers.patch`**\n   *\n   * - **`defaults.jsonpCallbackParam`** - `{string}` - the name of the query parameter that passes the name of the\n   * callback in a JSONP request. The value of this parameter will be replaced with the expression generated by the\n   * {@link $jsonpCallbacks} service. Defaults to `'callback'`.\n   *\n   * - **`defaults.paramSerializer`** - `{string|function(Object<string,string>):string}` - A function\n   *  used to the prepare string representation of request parameters (specified as an object).\n   *  If specified as string, it is interpreted as a function registered with the {@link auto.$injector $injector}.\n   *  Defaults to {@link ng.$httpParamSerializer $httpParamSerializer}.\n   *\n   * - **`defaults.transformRequest`** -\n   * `{Array<function(data, headersGetter)>|function(data, headersGetter)}` -\n   * An array of functions (or a single function) which are applied to the request data.\n   * By default, this is an array with one request transformation function:\n   *\n   *   - If the `data` property of the request configuration object contains an object, serialize it\n   *     into JSON format.\n   *\n   * - **`defaults.transformResponse`** -\n   * `{Array<function(data, headersGetter, status)>|function(data, headersGetter, status)}` -\n   * An array of functions (or a single function) which are applied to the response data. By default,\n   * this is an array which applies one response transformation function that does two things:\n   *\n   *  - If XSRF prefix is detected, strip it\n   *    (see {@link ng.$http#security-considerations Security Considerations in the $http docs}).\n   *  - If the `Content-Type` is `application/json` or the response looks like JSON,\n   *    deserialize it using a JSON parser.\n   *\n   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n   * Defaults value is `'XSRF-TOKEN'`.\n   *\n   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n   *\n   */\n  var defaults = this.defaults = {\n    // transform incoming response data\n    transformResponse: [defaultHttpResponseTransform],\n\n    // transform outgoing request data\n    transformRequest: [function(d) {\n      return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;\n    }],\n\n    // default headers\n    headers: {\n      common: {\n        'Accept': 'application/json, text/plain, */*'\n      },\n      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n    },\n\n    xsrfCookieName: 'XSRF-TOKEN',\n    xsrfHeaderName: 'X-XSRF-TOKEN',\n\n    paramSerializer: '$httpParamSerializer',\n\n    jsonpCallbackParam: 'callback'\n  };\n\n  var useApplyAsync = false;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useApplyAsync\n   * @description\n   *\n   * Configure $http service to combine processing of multiple http responses received at around\n   * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in\n   * significant performance improvement for bigger applications that make many HTTP requests\n   * concurrently (common during application bootstrap).\n   *\n   * Defaults to false. If no value is specified, returns the current configured value.\n   *\n   * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred\n   *    \"apply\" on the next tick, giving time for subsequent requests in a roughly ~10ms window\n   *    to load and share the same digest cycle.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   */\n  this.useApplyAsync = function(value) {\n    if (isDefined(value)) {\n      useApplyAsync = !!value;\n      return this;\n    }\n    return useApplyAsync;\n  };\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#interceptors\n   * @description\n   *\n   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n   * pre-processing of request or postprocessing of responses.\n   *\n   * These service factories are ordered by request, i.e. they are applied in the same order as the\n   * array, on request, but reverse order, on response.\n   *\n   * {@link ng.$http#interceptors Interceptors detailed info}\n   */\n  var interceptorFactories = this.interceptors = [];\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#xsrfWhitelistedOrigins\n   * @description\n   *\n   * Array containing URLs whose origins are trusted to receive the XSRF token. See the\n   * {@link ng.$http#security-considerations Security Considerations} sections for more details on\n   * XSRF.\n   *\n   * **Note:** An \"origin\" consists of the [URI scheme](https://en.wikipedia.org/wiki/URI_scheme),\n   * the [hostname](https://en.wikipedia.org/wiki/Hostname) and the\n   * [port number](https://en.wikipedia.org/wiki/Port_(computer_networking). For `http:` and\n   * `https:`, the port number can be omitted if using th default ports (80 and 443 respectively).\n   * Examples: `http://example.com`, `https://api.example.com:9876`\n   *\n   * <div class=\"alert alert-warning\">\n   *   It is not possible to whitelist specific URLs/paths. The `path`, `query` and `fragment` parts\n   *   of a URL will be ignored. For example, `https://foo.com/path/bar?query=baz#fragment` will be\n   *   treated as `https://foo.com`, meaning that **all** requests to URLs starting with\n   *   `https://foo.com/` will include the XSRF token.\n   * </div>\n   *\n   * @example\n   *\n   * ```js\n   * // App served from `https://example.com/`.\n   * angular.\n   *   module('xsrfWhitelistedOriginsExample', []).\n   *   config(['$httpProvider', function($httpProvider) {\n   *     $httpProvider.xsrfWhitelistedOrigins.push('https://api.example.com');\n   *   }]).\n   *   run(['$http', function($http) {\n   *     // The XSRF token will be sent.\n   *     $http.get('https://api.example.com/preferences').then(...);\n   *\n   *     // The XSRF token will NOT be sent.\n   *     $http.get('https://stats.example.com/activity').then(...);\n   *   }]);\n   * ```\n   */\n  var xsrfWhitelistedOrigins = this.xsrfWhitelistedOrigins = [];\n\n  this.$get = ['$browser', '$httpBackend', '$$cookieReader', '$cacheFactory', '$rootScope', '$q', '$injector', '$sce',\n      function($browser, $httpBackend, $$cookieReader, $cacheFactory, $rootScope, $q, $injector, $sce) {\n\n    var defaultCache = $cacheFactory('$http');\n\n    /**\n     * Make sure that default param serializer is exposed as a function\n     */\n    defaults.paramSerializer = isString(defaults.paramSerializer) ?\n      $injector.get(defaults.paramSerializer) : defaults.paramSerializer;\n\n    /**\n     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n     * The reversal is needed so that we can build up the interception chain around the\n     * server request.\n     */\n    var reversedInterceptors = [];\n\n    forEach(interceptorFactories, function(interceptorFactory) {\n      reversedInterceptors.unshift(isString(interceptorFactory)\n          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n    });\n\n    /**\n     * A function to check request URLs against a list of allowed origins.\n     */\n    var urlIsAllowedOrigin = urlIsAllowedOriginFactory(xsrfWhitelistedOrigins);\n\n    /**\n     * @ngdoc service\n     * @kind function\n     * @name $http\n     * @requires ng.$httpBackend\n     * @requires $cacheFactory\n     * @requires $rootScope\n     * @requires $q\n     * @requires $injector\n     *\n     * @description\n     * The `$http` service is a core AngularJS service that facilitates communication with the remote\n     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n     *\n     * For unit testing applications that use `$http` service, see\n     * {@link ngMock.$httpBackend $httpBackend mock}.\n     *\n     * For a higher level of abstraction, please check out the {@link ngResource.$resource\n     * $resource} service.\n     *\n     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n     * it is important to familiarize yourself with these APIs and the guarantees they provide.\n     *\n     *\n     * ## General usage\n     * The `$http` service is a function which takes a single argument — a {@link $http#usage configuration object} —\n     * that is used to generate an HTTP request and returns  a {@link ng.$q promise} that is\n     * resolved (request success) or rejected (request failure) with a\n     * {@link ng.$http#$http-returns response} object.\n     *\n     * ```js\n     *   // Simple GET request example:\n     *   $http({\n     *     method: 'GET',\n     *     url: '/someUrl'\n     *   }).then(function successCallback(response) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }, function errorCallback(response) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     *\n     * ## Shortcut methods\n     *\n     * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n     * request data must be passed in for POST/PUT requests. An optional config can be passed as the\n     * last argument.\n     *\n     * ```js\n     *   $http.get('/someUrl', config).then(successCallback, errorCallback);\n     *   $http.post('/someUrl', data, config).then(successCallback, errorCallback);\n     * ```\n     *\n     * Complete list of shortcut methods:\n     *\n     * - {@link ng.$http#get $http.get}\n     * - {@link ng.$http#head $http.head}\n     * - {@link ng.$http#post $http.post}\n     * - {@link ng.$http#put $http.put}\n     * - {@link ng.$http#delete $http.delete}\n     * - {@link ng.$http#jsonp $http.jsonp}\n     * - {@link ng.$http#patch $http.patch}\n     *\n     *\n     * ## Writing Unit Tests that use $http\n     * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n     * request using trained responses.\n     *\n     * ```\n     * $httpBackend.expectGET(...);\n     * $http.get(...);\n     * $httpBackend.flush();\n     * ```\n     *\n     * ## Setting HTTP Headers\n     *\n     * The $http service will automatically add certain HTTP headers to all requests. These defaults\n     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n     * object, which currently contains this default configuration:\n     *\n     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n     *   - <code>Accept: application/json, text/plain, \\*&#65279;/&#65279;\\*</code>\n     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n     *   - `Content-Type: application/json`\n     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n     *   - `Content-Type: application/json`\n     *\n     * To add or overwrite these defaults, simply add or remove a property from these configuration\n     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n     * with the lowercased HTTP method name as the key, e.g.\n     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }`.\n     *\n     * The defaults can also be set at runtime via the `$http.defaults` object in the same\n     * fashion. For example:\n     *\n     * ```\n     * module.run(function($http) {\n     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w';\n     * });\n     * ```\n     *\n     * In addition, you can supply a `headers` property in the config object passed when\n     * calling `$http(config)`, which overrides the defaults without changing them globally.\n     *\n     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n     * Use the `headers` property, setting the desired header to `undefined`. For example:\n     *\n     * ```js\n     * var req = {\n     *  method: 'POST',\n     *  url: 'http://example.com',\n     *  headers: {\n     *    'Content-Type': undefined\n     *  },\n     *  data: { test: 'test' }\n     * }\n     *\n     * $http(req).then(function(){...}, function(){...});\n     * ```\n     *\n     * ## Transforming Requests and Responses\n     *\n     * Both requests and responses can be transformed using transformation functions: `transformRequest`\n     * and `transformResponse`. These properties can be a single function that returns\n     * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,\n     * which allows you to `push` or `unshift` a new transformation function into the transformation chain.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note:** AngularJS does not make a copy of the `data` parameter before it is passed into the `transformRequest` pipeline.\n     * That means changes to the properties of `data` are not local to the transform function (since Javascript passes objects by reference).\n     * For example, when calling `$http.get(url, $scope.myObject)`, modifications to the object's properties in a transformRequest\n     * function will be reflected on the scope and in any templates where the object is data-bound.\n     * To prevent this, transform functions should have no side-effects.\n     * If you need to modify properties, it is recommended to make a copy of the data, or create new object to return.\n     * </div>\n     *\n     * ### Default Transformations\n     *\n     * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and\n     * `defaults.transformResponse` properties. If a request does not provide its own transformations\n     * then these will be applied.\n     *\n     * You can augment or replace the default transformations by modifying these properties by adding to or\n     * replacing the array.\n     *\n     * AngularJS provides the following default transformations:\n     *\n     * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`) is\n     * an array with one function that does the following:\n     *\n     * - If the `data` property of the request configuration object contains an object, serialize it\n     *   into JSON format.\n     *\n     * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`) is\n     * an array with one function that does the following:\n     *\n     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).\n     *  - If the `Content-Type` is `application/json` or the response looks like JSON,\n   *      deserialize it using a JSON parser.\n     *\n     *\n     * ### Overriding the Default Transformations Per Request\n     *\n     * If you wish to override the request/response transformations only for a single request then provide\n     * `transformRequest` and/or `transformResponse` properties on the configuration object passed\n     * into `$http`.\n     *\n     * Note that if you provide these properties on the config object the default transformations will be\n     * overwritten. If you wish to augment the default transformations then you must include them in your\n     * local transformation array.\n     *\n     * The following code demonstrates adding a new response transformation to be run after the default response\n     * transformations have been run.\n     *\n     * ```js\n     * function appendTransform(defaults, transform) {\n     *\n     *   // We can't guarantee that the default transformation is an array\n     *   defaults = angular.isArray(defaults) ? defaults : [defaults];\n     *\n     *   // Append the new transformation to the defaults\n     *   return defaults.concat(transform);\n     * }\n     *\n     * $http({\n     *   url: '...',\n     *   method: 'GET',\n     *   transformResponse: appendTransform($http.defaults.transformResponse, function(value) {\n     *     return doTransform(value);\n     *   })\n     * });\n     * ```\n     *\n     *\n     * ## Caching\n     *\n     * {@link ng.$http `$http`} responses are not cached by default. To enable caching, you must\n     * set the config.cache value or the default cache value to TRUE or to a cache object (created\n     * with {@link ng.$cacheFactory `$cacheFactory`}). If defined, the value of config.cache takes\n     * precedence over the default cache value.\n     *\n     * In order to:\n     *   * cache all responses - set the default cache value to TRUE or to a cache object\n     *   * cache a specific response - set config.cache value to TRUE or to a cache object\n     *\n     * If caching is enabled, but neither the default cache nor config.cache are set to a cache object,\n     * then the default `$cacheFactory(\"$http\")` object is used.\n     *\n     * The default cache value can be set by updating the\n     * {@link ng.$http#defaults `$http.defaults.cache`} property or the\n     * {@link $httpProvider#defaults `$httpProvider.defaults.cache`} property.\n     *\n     * When caching is enabled, {@link ng.$http `$http`} stores the response from the server using\n     * the relevant cache object. The next time the same request is made, the response is returned\n     * from the cache without sending a request to the server.\n     *\n     * Take note that:\n     *\n     *   * Only GET and JSONP requests are cached.\n     *   * The cache key is the request URL including search parameters; headers are not considered.\n     *   * Cached responses are returned asynchronously, in the same way as responses from the server.\n     *   * If multiple identical requests are made using the same cache, which is not yet populated,\n     *     one request will be made to the server and remaining requests will return the same response.\n     *   * A cache-control header on the response does not affect if or how responses are cached.\n     *\n     *\n     * ## Interceptors\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication, or any kind of synchronous or\n     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n     * able to intercept requests before they are handed to the server and\n     * responses before they are handed over to the application code that\n     * initiated these requests. The interceptors leverage the {@link ng.$q\n     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n     *\n     * The interceptors are service factories that are registered with the `$httpProvider` by\n     * adding them to the `$httpProvider.interceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor.\n     *\n     * There are two kinds of interceptors (and two kinds of rejection interceptors):\n     *\n     *   * `request`: interceptors get called with a http {@link $http#usage config} object. The function is free to\n     *     modify the `config` object or create a new one. The function needs to return the `config`\n     *     object directly, or a promise containing the `config` or a new `config` object.\n     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *   * `response`: interceptors get called with http `response` object. The function is free to\n     *     modify the `response` object or create a new one. The function needs to return the `response`\n     *     object directly, or as a promise containing the `response` or a new `response` object.\n     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return {\n     *       // optional method\n     *       'request': function(config) {\n     *         // do something on success\n     *         return config;\n     *       },\n     *\n     *       // optional method\n     *      'requestError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       },\n     *\n     *\n     *\n     *       // optional method\n     *       'response': function(response) {\n     *         // do something on success\n     *         return response;\n     *       },\n     *\n     *       // optional method\n     *      'responseError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       }\n     *     };\n     *   });\n     *\n     *   $httpProvider.interceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // alternatively, register the interceptor via an anonymous factory\n     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n     *     return {\n     *      'request': function(config) {\n     *          // same as above\n     *       },\n     *\n     *       'response': function(response) {\n     *          // same as above\n     *       }\n     *     };\n     *   });\n     * ```\n     *\n     * ## Security Considerations\n     *\n     * When designing web applications, consider security threats from:\n     *\n     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n     *\n     * Both server and the client must cooperate in order to eliminate these threats. AngularJS comes\n     * pre-configured with strategies that address these issues, but for this to work backend server\n     * cooperation is required.\n     *\n     * ### JSON Vulnerability Protection\n     *\n     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * allows third party website to turn your JSON resource URL into\n     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n     * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n     * AngularJS will automatically strip the prefix before processing it as JSON.\n     *\n     * For example if your server needs to return:\n     * ```js\n     * ['one','two']\n     * ```\n     *\n     * which is vulnerable to attack, your server can return:\n     * ```js\n     * )]}',\n     * ['one','two']\n     * ```\n     *\n     * AngularJS will strip the prefix, before processing the JSON.\n     *\n     *\n     * ### Cross Site Request Forgery (XSRF) Protection\n     *\n     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is an attack technique by\n     * which the attacker can trick an authenticated user into unknowingly executing actions on your\n     * website. AngularJS provides a mechanism to counter XSRF. When performing XHR requests, the\n     * $http service reads a token from a cookie (by default, `XSRF-TOKEN`) and sets it as an HTTP\n     * header (by default `X-XSRF-TOKEN`). Since only JavaScript that runs on your domain could read\n     * the cookie, your server can be assured that the XHR came from JavaScript running on your\n     * domain.\n     *\n     * To take advantage of this, your server needs to set a token in a JavaScript readable session\n     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n     * server can verify that the cookie matches the `X-XSRF-TOKEN` HTTP header, and therefore be\n     * sure that only JavaScript running on your domain could have sent the request. The token must\n     * be unique for each user and must be verifiable by the server (to prevent the JavaScript from\n     * making up its own tokens). We recommend that the token is a digest of your site's\n     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)\n     * for added security.\n     *\n     * The header will &mdash; by default &mdash; **not** be set for cross-domain requests. This\n     * prevents unauthorized servers (e.g. malicious or compromised 3rd-party APIs) from gaining\n     * access to your users' XSRF tokens and exposing them to Cross Site Request Forgery. If you\n     * want to, you can whitelist additional origins to also receive the XSRF token, by adding them\n     * to {@link ng.$httpProvider#xsrfWhitelistedOrigins xsrfWhitelistedOrigins}. This might be\n     * useful, for example, if your application, served from `example.com`, needs to access your API\n     * at `api.example.com`.\n     * See {@link ng.$httpProvider#xsrfWhitelistedOrigins $httpProvider.xsrfWhitelistedOrigins} for\n     * more details.\n     *\n     * <div class=\"alert alert-danger\">\n     *   **Warning**<br />\n     *   Only whitelist origins that you have control over and make sure you understand the\n     *   implications of doing so.\n     * </div>\n     *\n     * The name of the cookie and the header can be specified using the `xsrfCookieName` and\n     * `xsrfHeaderName` properties of either `$httpProvider.defaults` at config-time,\n     * `$http.defaults` at run-time, or the per-request config object.\n     *\n     * In order to prevent collisions in environments where multiple AngularJS apps share the\n     * same domain or subdomain, we recommend that each application uses a unique cookie name.\n     *\n     *\n     * @param {object} config Object describing the request to be made and how it should be\n     *    processed. The object has following properties:\n     *\n     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n     *    - **url** – `{string|TrustedObject}` – Absolute or relative URL of the resource that is being requested;\n     *      or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be serialized\n     *      with the `paramSerializer` and appended as GET parameters.\n     *    - **data** – `{string|Object}` – Data to be sent as the request message data.\n     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing\n     *      HTTP headers to send to the server. If the return value of a function is null, the\n     *      header will not be sent. Functions accept a config object as an argument.\n     *    - **eventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest object.\n     *      To bind events to the XMLHttpRequest upload object, use `uploadEventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **uploadEventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest upload\n     *      object. To bind events to the XMLHttpRequest object, use `eventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n     *    - **transformRequest** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      request body and headers and returns its transformed (typically serialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **transformResponse** –\n     *      `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      response body, headers and status and returns its transformed (typically deserialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **paramSerializer** - `{string|function(Object<string,string>):string}` - A function used to\n     *      prepare the string representation of request parameters (specified as an object).\n     *      If specified as string, it is interpreted as function registered with the\n     *      {@link $injector $injector}, which means you can create your own serializer\n     *      by registering it as a {@link auto.$provide#service service}.\n     *      The default serializer is the {@link $httpParamSerializer $httpParamSerializer};\n     *      alternatively, you can use the {@link $httpParamSerializerJQLike $httpParamSerializerJQLike}\n     *    - **cache** – `{boolean|Object}` – A boolean value or object created with\n     *      {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response.\n     *      See {@link $http#caching $http Caching} for more information.\n     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n     *      that should abort the request when resolved.\n     *\n     *      A numerical timeout or a promise returned from {@link ng.$timeout $timeout}, will set\n     *      the `xhrStatus` in the {@link $http#$http-returns response} to \"timeout\", and any other\n     *      resolved promise will set it to \"abort\", following standard XMLHttpRequest behavior.\n     *\n     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n     *      for more information.\n     *    - **responseType** - `{string}` - see\n     *      [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#xmlhttprequest-responsetype).\n     *\n     * @returns {HttpPromise} A {@link ng.$q `Promise}` that will be resolved (request success)\n     *   or rejected (request failure) with a response object.\n     *\n     *   The response object has these properties:\n     *\n     *   - **data** – `{string|Object}` – The response body transformed with\n     *     the transform functions.\n     *   - **status** – `{number}` – HTTP status code of the response.\n     *   - **headers** – `{function([headerName])}` – Header getter function.\n     *   - **config** – `{Object}` – The configuration object that was used\n     *     to generate the request.\n     *   - **statusText** – `{string}` – HTTP status text of the response.\n     *   - **xhrStatus** – `{string}` – Status of the XMLHttpRequest\n     *     (`complete`, `error`, `timeout` or `abort`).\n     *\n     *\n     *   A response status code between 200 and 299 is considered a success status\n     *   and will result in the success callback being called. Any response status\n     *   code outside of that range is considered an error status and will result\n     *   in the error callback being called.\n     *   Also, status codes less than -1 are normalized to zero. -1 usually means\n     *   the request was aborted, e.g. using a `config.timeout`. More information\n     *   about the status might be available in the `xhrStatus` property.\n     *\n     *   Note that if the response is a redirect, XMLHttpRequest will transparently\n     *   follow it, meaning that the outcome (success or error) will be determined\n     *   by the final response status code.\n     *\n     *\n     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending\n     *   requests. This is primarily meant to be used for debugging purposes.\n     *\n     *\n     * @example\n<example module=\"httpExample\" name=\"http-service\">\n<file name=\"index.html\">\n  <div ng-controller=\"FetchController\">\n    <select ng-model=\"method\" aria-label=\"Request method\">\n      <option>GET</option>\n      <option>JSONP</option>\n    </select>\n    <input type=\"text\" ng-model=\"url\" size=\"80\" aria-label=\"URL\" />\n    <button id=\"fetchbtn\" ng-click=\"fetch()\">fetch</button><br>\n    <button id=\"samplegetbtn\" ng-click=\"updateModel('GET', 'http-hello.html')\">Sample GET</button>\n    <button id=\"samplejsonpbtn\"\n      ng-click=\"updateModel('JSONP',\n                    'https://angularjs.org/greet.php?name=Super%20Hero')\">\n      Sample JSONP\n    </button>\n    <button id=\"invalidjsonpbtn\"\n      ng-click=\"updateModel('JSONP', 'https://angularjs.org/doesntexist')\">\n        Invalid JSONP\n      </button>\n    <pre>http status code: {{status}}</pre>\n    <pre>http response data: {{data}}</pre>\n  </div>\n</file>\n<file name=\"script.js\">\n  angular.module('httpExample', [])\n    .config(['$sceDelegateProvider', function($sceDelegateProvider) {\n      // We must whitelist the JSONP endpoint that we are using to show that we trust it\n      $sceDelegateProvider.resourceUrlWhitelist([\n        'self',\n        'https://angularjs.org/**'\n      ]);\n    }])\n    .controller('FetchController', ['$scope', '$http', '$templateCache',\n      function($scope, $http, $templateCache) {\n        $scope.method = 'GET';\n        $scope.url = 'http-hello.html';\n\n        $scope.fetch = function() {\n          $scope.code = null;\n          $scope.response = null;\n\n          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).\n            then(function(response) {\n              $scope.status = response.status;\n              $scope.data = response.data;\n            }, function(response) {\n              $scope.data = response.data || 'Request failed';\n              $scope.status = response.status;\n          });\n        };\n\n        $scope.updateModel = function(method, url) {\n          $scope.method = method;\n          $scope.url = url;\n        };\n      }]);\n</file>\n<file name=\"http-hello.html\">\n  Hello, $http!\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  var status = element(by.binding('status'));\n  var data = element(by.binding('data'));\n  var fetchBtn = element(by.id('fetchbtn'));\n  var sampleGetBtn = element(by.id('samplegetbtn'));\n  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));\n\n  it('should make an xhr GET request', function() {\n    sampleGetBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('200');\n    expect(data.getText()).toMatch(/Hello, \\$http!/);\n  });\n\n// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185\n// it('should make a JSONP request to angularjs.org', function() {\n//   var sampleJsonpBtn = element(by.id('samplejsonpbtn'));\n//   sampleJsonpBtn.click();\n//   fetchBtn.click();\n//   expect(status.getText()).toMatch('200');\n//   expect(data.getText()).toMatch(/Super Hero!/);\n// });\n\n  it('should make JSONP request to invalid URL and invoke the error handler',\n      function() {\n    invalidJsonpBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('0');\n    expect(data.getText()).toMatch('Request failed');\n  });\n</file>\n</example>\n     */\n    function $http(requestConfig) {\n\n      if (!isObject(requestConfig)) {\n        throw minErr('$http')('badreq', 'Http request configuration must be an object.  Received: {0}', requestConfig);\n      }\n\n      if (!isString($sce.valueOf(requestConfig.url))) {\n        throw minErr('$http')('badreq', 'Http request configuration url must be a string or a $sce trusted object.  Received: {0}', requestConfig.url);\n      }\n\n      var config = extend({\n        method: 'get',\n        transformRequest: defaults.transformRequest,\n        transformResponse: defaults.transformResponse,\n        paramSerializer: defaults.paramSerializer,\n        jsonpCallbackParam: defaults.jsonpCallbackParam\n      }, requestConfig);\n\n      config.headers = mergeHeaders(requestConfig);\n      config.method = uppercase(config.method);\n      config.paramSerializer = isString(config.paramSerializer) ?\n          $injector.get(config.paramSerializer) : config.paramSerializer;\n\n      $browser.$$incOutstandingRequestCount();\n\n      var requestInterceptors = [];\n      var responseInterceptors = [];\n      var promise = $q.resolve(config);\n\n      // apply interceptors\n      forEach(reversedInterceptors, function(interceptor) {\n        if (interceptor.request || interceptor.requestError) {\n          requestInterceptors.unshift(interceptor.request, interceptor.requestError);\n        }\n        if (interceptor.response || interceptor.responseError) {\n          responseInterceptors.push(interceptor.response, interceptor.responseError);\n        }\n      });\n\n      promise = chainInterceptors(promise, requestInterceptors);\n      promise = promise.then(serverRequest);\n      promise = chainInterceptors(promise, responseInterceptors);\n      promise = promise.finally(completeOutstandingRequest);\n\n      return promise;\n\n\n      function chainInterceptors(promise, interceptors) {\n        for (var i = 0, ii = interceptors.length; i < ii;) {\n          var thenFn = interceptors[i++];\n          var rejectFn = interceptors[i++];\n\n          promise = promise.then(thenFn, rejectFn);\n        }\n\n        interceptors.length = 0;\n\n        return promise;\n      }\n\n      function completeOutstandingRequest() {\n        $browser.$$completeOutstandingRequest(noop);\n      }\n\n      function executeHeaderFns(headers, config) {\n        var headerContent, processedHeaders = {};\n\n        forEach(headers, function(headerFn, header) {\n          if (isFunction(headerFn)) {\n            headerContent = headerFn(config);\n            if (headerContent != null) {\n              processedHeaders[header] = headerContent;\n            }\n          } else {\n            processedHeaders[header] = headerFn;\n          }\n        });\n\n        return processedHeaders;\n      }\n\n      function mergeHeaders(config) {\n        var defHeaders = defaults.headers,\n            reqHeaders = extend({}, config.headers),\n            defHeaderName, lowercaseDefHeaderName, reqHeaderName;\n\n        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);\n\n        // using for-in instead of forEach to avoid unnecessary iteration after header has been found\n        defaultHeadersIteration:\n        for (defHeaderName in defHeaders) {\n          lowercaseDefHeaderName = lowercase(defHeaderName);\n\n          for (reqHeaderName in reqHeaders) {\n            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {\n              continue defaultHeadersIteration;\n            }\n          }\n\n          reqHeaders[defHeaderName] = defHeaders[defHeaderName];\n        }\n\n        // execute if header value is a function for merged headers\n        return executeHeaderFns(reqHeaders, shallowCopy(config));\n      }\n\n      function serverRequest(config) {\n        var headers = config.headers;\n        var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest);\n\n        // strip content-type if data is undefined\n        if (isUndefined(reqData)) {\n          forEach(headers, function(value, header) {\n            if (lowercase(header) === 'content-type') {\n              delete headers[header];\n            }\n          });\n        }\n\n        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {\n          config.withCredentials = defaults.withCredentials;\n        }\n\n        // send request\n        return sendReq(config, reqData).then(transformResponse, transformResponse);\n      }\n\n      function transformResponse(response) {\n        // make a copy since the response must be cacheable\n        var resp = extend({}, response);\n        resp.data = transformData(response.data, response.headers, response.status,\n                                  config.transformResponse);\n        return (isSuccess(response.status))\n          ? resp\n          : $q.reject(resp);\n      }\n    }\n\n    $http.pendingRequests = [];\n\n    /**\n     * @ngdoc method\n     * @name $http#get\n     *\n     * @description\n     * Shortcut method to perform `GET` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#delete\n     *\n     * @description\n     * Shortcut method to perform `DELETE` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#head\n     *\n     * @description\n     * Shortcut method to perform `HEAD` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#jsonp\n     *\n     * @description\n     * Shortcut method to perform `JSONP` request.\n     *\n     * Note that, since JSONP requests are sensitive because the response is given full access to the browser,\n     * the url must be declared, via {@link $sce} as a trusted resource URL.\n     * You can trust a URL by adding it to the whitelist via\n     * {@link $sceDelegateProvider#resourceUrlWhitelist  `$sceDelegateProvider.resourceUrlWhitelist`} or\n     * by explicitly trusting the URL via {@link $sce#trustAsResourceUrl `$sce.trustAsResourceUrl(url)`}.\n     *\n     * You should avoid generating the URL for the JSONP request from user provided data.\n     * Provide additional query parameters via `params` property of the `config` parameter, rather than\n     * modifying the URL itself.\n     *\n     * JSONP requests must specify a callback to be used in the response from the server. This callback\n     * is passed as a query parameter in the request. You must specify the name of this parameter by\n     * setting the `jsonpCallbackParam` property on the request config object.\n     *\n     * ```\n     * $http.jsonp('some/trusted/url', {jsonpCallbackParam: 'callback'})\n     * ```\n     *\n     * You can also specify a default callback parameter name in `$http.defaults.jsonpCallbackParam`.\n     * Initially this is set to `'callback'`.\n     *\n     * <div class=\"alert alert-danger\">\n     * You can no longer use the `JSON_CALLBACK` string as a placeholder for specifying where the callback\n     * parameter value should go.\n     * </div>\n     *\n     * If you would like to customise where and how the callbacks are stored then try overriding\n     * or decorating the {@link $jsonpCallbacks} service.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n    createShortMethods('get', 'delete', 'head', 'jsonp');\n\n    /**\n     * @ngdoc method\n     * @name $http#post\n     *\n     * @description\n     * Shortcut method to perform `POST` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#put\n     *\n     * @description\n     * Shortcut method to perform `PUT` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n     /**\n      * @ngdoc method\n      * @name $http#patch\n      *\n      * @description\n      * Shortcut method to perform `PATCH` request.\n      *\n      * @param {string} url Relative or absolute URL specifying the destination of the request\n      * @param {*} data Request content\n      * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n      * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n      * See {@link ng.$http#$http-returns `$http()` return value}.\n      */\n    createShortMethodsWithData('post', 'put', 'patch');\n\n        /**\n         * @ngdoc property\n         * @name $http#defaults\n         *\n         * @description\n         * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of\n         * default headers, withCredentials as well as request and response transformations.\n         *\n         * See \"Setting HTTP Headers\" and \"Transforming Requests and Responses\" sections above.\n         */\n    $http.defaults = defaults;\n\n\n    return $http;\n\n\n    function createShortMethods(names) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url\n          }));\n        };\n      });\n    }\n\n\n    function createShortMethodsWithData(name) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, data, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url,\n            data: data\n          }));\n        };\n      });\n    }\n\n\n    /**\n     * Makes the request.\n     *\n     * !!! ACCESSES CLOSURE VARS:\n     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests\n     */\n    function sendReq(config, reqData) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          cache,\n          cachedResp,\n          reqHeaders = config.headers,\n          isJsonp = lowercase(config.method) === 'jsonp',\n          url = config.url;\n\n      if (isJsonp) {\n        // JSONP is a pretty sensitive operation where we're allowing a script to have full access to\n        // our DOM and JS space.  So we require that the URL satisfies SCE.RESOURCE_URL.\n        url = $sce.getTrustedResourceUrl(url);\n      } else if (!isString(url)) {\n        // If it is not a string then the URL must be a $sce trusted object\n        url = $sce.valueOf(url);\n      }\n\n      url = buildUrl(url, config.paramSerializer(config.params));\n\n      if (isJsonp) {\n        // Check the url and add the JSONP callback placeholder\n        url = sanitizeJsonpCallbackParam(url, config.jsonpCallbackParam);\n      }\n\n      $http.pendingRequests.push(config);\n      promise.then(removePendingReq, removePendingReq);\n\n      if ((config.cache || defaults.cache) && config.cache !== false &&\n          (config.method === 'GET' || config.method === 'JSONP')) {\n        cache = isObject(config.cache) ? config.cache\n            : isObject(/** @type {?} */ (defaults).cache)\n              ? /** @type {?} */ (defaults).cache\n              : defaultCache;\n      }\n\n      if (cache) {\n        cachedResp = cache.get(url);\n        if (isDefined(cachedResp)) {\n          if (isPromiseLike(cachedResp)) {\n            // cached request has already been sent, but there is no response yet\n            cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult);\n          } else {\n            // serving from cache\n            if (isArray(cachedResp)) {\n              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3], cachedResp[4]);\n            } else {\n              resolvePromise(cachedResp, 200, {}, 'OK', 'complete');\n            }\n          }\n        } else {\n          // put the promise for the non-transformed response into cache as a placeholder\n          cache.put(url, promise);\n        }\n      }\n\n\n      // if we won't have the response in cache, set the xsrf headers and\n      // send the request to the backend\n      if (isUndefined(cachedResp)) {\n        var xsrfValue = urlIsAllowedOrigin(config.url)\n            ? $$cookieReader()[config.xsrfCookieName || defaults.xsrfCookieName]\n            : undefined;\n        if (xsrfValue) {\n          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;\n        }\n\n        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,\n            config.withCredentials, config.responseType,\n            createApplyHandlers(config.eventHandlers),\n            createApplyHandlers(config.uploadEventHandlers));\n      }\n\n      return promise;\n\n      function createApplyHandlers(eventHandlers) {\n        if (eventHandlers) {\n          var applyHandlers = {};\n          forEach(eventHandlers, function(eventHandler, key) {\n            applyHandlers[key] = function(event) {\n              if (useApplyAsync) {\n                $rootScope.$applyAsync(callEventHandler);\n              } else if ($rootScope.$$phase) {\n                callEventHandler();\n              } else {\n                $rootScope.$apply(callEventHandler);\n              }\n\n              function callEventHandler() {\n                eventHandler(event);\n              }\n            };\n          });\n          return applyHandlers;\n        }\n      }\n\n\n      /**\n       * Callback registered to $httpBackend():\n       *  - caches the response if desired\n       *  - resolves the raw $http promise\n       *  - calls $apply\n       */\n      function done(status, response, headersString, statusText, xhrStatus) {\n        if (cache) {\n          if (isSuccess(status)) {\n            cache.put(url, [status, response, parseHeaders(headersString), statusText, xhrStatus]);\n          } else {\n            // remove promise from the cache\n            cache.remove(url);\n          }\n        }\n\n        function resolveHttpPromise() {\n          resolvePromise(response, status, headersString, statusText, xhrStatus);\n        }\n\n        if (useApplyAsync) {\n          $rootScope.$applyAsync(resolveHttpPromise);\n        } else {\n          resolveHttpPromise();\n          if (!$rootScope.$$phase) $rootScope.$apply();\n        }\n      }\n\n\n      /**\n       * Resolves the raw $http promise.\n       */\n      function resolvePromise(response, status, headers, statusText, xhrStatus) {\n        //status: HTTP response status code, 0, -1 (aborted by timeout / promise)\n        status = status >= -1 ? status : 0;\n\n        (isSuccess(status) ? deferred.resolve : deferred.reject)({\n          data: response,\n          status: status,\n          headers: headersGetter(headers),\n          config: config,\n          statusText: statusText,\n          xhrStatus: xhrStatus\n        });\n      }\n\n      function resolvePromiseWithResult(result) {\n        resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText, result.xhrStatus);\n      }\n\n      function removePendingReq() {\n        var idx = $http.pendingRequests.indexOf(config);\n        if (idx !== -1) $http.pendingRequests.splice(idx, 1);\n      }\n    }\n\n\n    function buildUrl(url, serializedParams) {\n      if (serializedParams.length > 0) {\n        url += ((url.indexOf('?') === -1) ? '?' : '&') + serializedParams;\n      }\n      return url;\n    }\n\n    function sanitizeJsonpCallbackParam(url, cbKey) {\n      var parts = url.split('?');\n      if (parts.length > 2) {\n        // Throw if the url contains more than one `?` query indicator\n        throw $httpMinErr('badjsonp', 'Illegal use more than one \"?\", in url, \"{1}\"', url);\n      }\n      var params = parseKeyValue(parts[1]);\n      forEach(params, function(value, key) {\n        if (value === 'JSON_CALLBACK') {\n          // Throw if the url already contains a reference to JSON_CALLBACK\n          throw $httpMinErr('badjsonp', 'Illegal use of JSON_CALLBACK in url, \"{0}\"', url);\n        }\n        if (key === cbKey) {\n          // Throw if the callback param was already provided\n          throw $httpMinErr('badjsonp', 'Illegal use of callback param, \"{0}\", in url, \"{1}\"', cbKey, url);\n        }\n      });\n\n      // Add in the JSON_CALLBACK callback param value\n      url += ((url.indexOf('?') === -1) ? '?' : '&') + cbKey + '=JSON_CALLBACK';\n\n      return url;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $xhrFactory\n * @this\n *\n * @description\n * Factory function used to create XMLHttpRequest objects.\n *\n * Replace or decorate this service to create your own custom XMLHttpRequest objects.\n *\n * ```\n * angular.module('myApp', [])\n * .factory('$xhrFactory', function() {\n *   return function createXhr(method, url) {\n *     return new window.XMLHttpRequest({mozSystem: true});\n *   };\n * });\n * ```\n *\n * @param {string} method HTTP method of the request (GET, POST, PUT, ..)\n * @param {string} url URL of the request.\n */\nfunction $xhrFactoryProvider() {\n  this.$get = function() {\n    return function createXhr() {\n      return new window.XMLHttpRequest();\n    };\n  };\n}\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @requires $jsonpCallbacks\n * @requires $document\n * @requires $xhrFactory\n * @this\n *\n * @description\n * HTTP backend used by the {@link ng.$http service} that delegates to\n * XMLHttpRequest object or JSONP and deals with browser incompatibilities.\n *\n * You should never need to use this service directly, instead use the higher-level abstractions:\n * {@link ng.$http $http} or {@link ngResource.$resource $resource}.\n *\n * During testing this implementation is swapped with {@link ngMock.$httpBackend mock\n * $httpBackend} which can be trained with responses.\n */\nfunction $HttpBackendProvider() {\n  this.$get = ['$browser', '$jsonpCallbacks', '$document', '$xhrFactory', function($browser, $jsonpCallbacks, $document, $xhrFactory) {\n    return createHttpBackend($browser, $xhrFactory, $browser.defer, $jsonpCallbacks, $document[0]);\n  }];\n}\n\nfunction createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {\n  // TODO(vojta): fix the signature\n  return function(method, url, post, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {\n    url = url || $browser.url();\n\n    if (lowercase(method) === 'jsonp') {\n      var callbackPath = callbacks.createCallback(url);\n      var jsonpDone = jsonpReq(url, callbackPath, function(status, text) {\n        // jsonpReq only ever sets status to 200 (OK), 404 (ERROR) or -1 (WAITING)\n        var response = (status === 200) && callbacks.getResponse(callbackPath);\n        completeRequest(callback, status, response, '', text, 'complete');\n        callbacks.removeCallback(callbackPath);\n      });\n    } else {\n\n      var xhr = createXhr(method, url);\n      var abortedByTimeout = false;\n\n      xhr.open(method, url, true);\n      forEach(headers, function(value, key) {\n        if (isDefined(value)) {\n            xhr.setRequestHeader(key, value);\n        }\n      });\n\n      xhr.onload = function requestLoaded() {\n        var statusText = xhr.statusText || '';\n\n        // responseText is the old-school way of retrieving response (supported by IE9)\n        // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)\n        var response = ('response' in xhr) ? xhr.response : xhr.responseText;\n\n        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)\n        var status = xhr.status === 1223 ? 204 : xhr.status;\n\n        // fix status code when it is 0 (0 status is undocumented).\n        // Occurs when accessing file resources or on Android 4.1 stock browser\n        // while retrieving files from application cache.\n        if (status === 0) {\n          status = response ? 200 : urlResolve(url).protocol === 'file' ? 404 : 0;\n        }\n\n        completeRequest(callback,\n            status,\n            response,\n            xhr.getAllResponseHeaders(),\n            statusText,\n            'complete');\n      };\n\n      var requestError = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '', 'error');\n      };\n\n      var requestAborted = function() {\n        completeRequest(callback, -1, null, null, '', abortedByTimeout ? 'timeout' : 'abort');\n      };\n\n      var requestTimeout = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '', 'timeout');\n      };\n\n      xhr.onerror = requestError;\n      xhr.ontimeout = requestTimeout;\n      xhr.onabort = requestAborted;\n\n      forEach(eventHandlers, function(value, key) {\n        xhr.addEventListener(key, value);\n      });\n\n      forEach(uploadEventHandlers, function(value, key) {\n        xhr.upload.addEventListener(key, value);\n      });\n\n      if (withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      if (responseType) {\n        try {\n          xhr.responseType = responseType;\n        } catch (e) {\n          // WebKit added support for the json responseType value on 09/03/2013\n          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are\n          // known to throw when setting the value \"json\" as the response type. Other older\n          // browsers implementing the responseType\n          //\n          // The json response type can be ignored if not supported, because JSON payloads are\n          // parsed on the client-side regardless.\n          if (responseType !== 'json') {\n            throw e;\n          }\n        }\n      }\n\n      xhr.send(isUndefined(post) ? null : post);\n    }\n\n    // Since we are using xhr.abort() when a request times out, we have to set a flag that\n    // indicates to requestAborted if the request timed out or was aborted.\n    //\n    // http.timeout = numerical timeout   timeout\n    // http.timeout = $timeout            timeout\n    // http.timeout = promise             abort\n    // xhr.abort()                        abort (The xhr object is normally inaccessible, but\n    //                                    can be exposed with the xhrFactory)\n    if (timeout > 0) {\n      var timeoutId = $browserDefer(function() {\n        timeoutRequest('timeout');\n      }, timeout);\n    } else if (isPromiseLike(timeout)) {\n      timeout.then(function() {\n        timeoutRequest(isDefined(timeout.$$timeoutId) ? 'timeout' : 'abort');\n      });\n    }\n\n    function timeoutRequest(reason) {\n      abortedByTimeout = reason === 'timeout';\n      if (jsonpDone) {\n        jsonpDone();\n      }\n      if (xhr) {\n        xhr.abort();\n      }\n    }\n\n    function completeRequest(callback, status, response, headersString, statusText, xhrStatus) {\n      // cancel timeout and subsequent timeout promise resolution\n      if (isDefined(timeoutId)) {\n        $browserDefer.cancel(timeoutId);\n      }\n      jsonpDone = xhr = null;\n\n      callback(status, response, headersString, statusText, xhrStatus);\n    }\n  };\n\n  function jsonpReq(url, callbackPath, done) {\n    url = url.replace('JSON_CALLBACK', callbackPath);\n    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:\n    // - fetches local scripts via XHR and evals them\n    // - adds and immediately removes script elements from the document\n    var script = rawDocument.createElement('script'), callback = null;\n    script.type = 'text/javascript';\n    script.src = url;\n    script.async = true;\n\n    callback = function(event) {\n      script.removeEventListener('load', callback);\n      script.removeEventListener('error', callback);\n      rawDocument.body.removeChild(script);\n      script = null;\n      var status = -1;\n      var text = 'unknown';\n\n      if (event) {\n        if (event.type === 'load' && !callbacks.wasCalled(callbackPath)) {\n          event = { type: 'error' };\n        }\n        text = event.type;\n        status = event.type === 'error' ? 404 : 200;\n      }\n\n      if (done) {\n        done(status, text);\n      }\n    };\n\n    script.addEventListener('load', callback);\n    script.addEventListener('error', callback);\n    rawDocument.body.appendChild(script);\n    return callback;\n  }\n}\n\nvar $interpolateMinErr = angular.$interpolateMinErr = minErr('$interpolate');\n$interpolateMinErr.throwNoconcat = function(text) {\n  throw $interpolateMinErr('noconcat',\n      'Error while interpolating: {0}\\nStrict Contextual Escaping disallows ' +\n      'interpolations that concatenate multiple expressions when a trusted value is ' +\n      'required.  See http://docs.angularjs.org/api/ng.$sce', text);\n};\n\n$interpolateMinErr.interr = function(text, err) {\n  return $interpolateMinErr('interr', 'Can\\'t interpolate: {0}\\n{1}', text, err.toString());\n};\n\n/**\n * @ngdoc provider\n * @name $interpolateProvider\n * @this\n *\n * @description\n *\n * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.\n *\n * <div class=\"alert alert-danger\">\n * This feature is sometimes used to mix different markup languages, e.g. to wrap an AngularJS\n * template within a Python Jinja template (or any other template language). Mixing templating\n * languages is **very dangerous**. The embedding template language will not safely escape AngularJS\n * expressions, so any user-controlled values in the template will cause Cross Site Scripting (XSS)\n * security bugs!\n * </div>\n *\n * @example\n<example name=\"custom-interpolation-markup\" module=\"customInterpolationApp\">\n<file name=\"index.html\">\n<script>\n  var customInterpolationApp = angular.module('customInterpolationApp', []);\n\n  customInterpolationApp.config(function($interpolateProvider) {\n    $interpolateProvider.startSymbol('//');\n    $interpolateProvider.endSymbol('//');\n  });\n\n\n  customInterpolationApp.controller('DemoController', function() {\n      this.label = \"This binding is brought you by // interpolation symbols.\";\n  });\n</script>\n<div ng-controller=\"DemoController as demo\">\n    //demo.label//\n</div>\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  it('should interpolate binding with custom symbols', function() {\n    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');\n  });\n</file>\n</example>\n */\nfunction $InterpolateProvider() {\n  var startSymbol = '{{';\n  var endSymbol = '}}';\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#startSymbol\n   * @description\n   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.\n   *\n   * @param {string=} value new value to set the starting symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.startSymbol = function(value) {\n    if (value) {\n      startSymbol = value;\n      return this;\n    } else {\n      return startSymbol;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#endSymbol\n   * @description\n   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n   *\n   * @param {string=} value new value to set the ending symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.endSymbol = function(value) {\n    if (value) {\n      endSymbol = value;\n      return this;\n    } else {\n      return endSymbol;\n    }\n  };\n\n\n  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {\n    var startSymbolLength = startSymbol.length,\n        endSymbolLength = endSymbol.length,\n        escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'),\n        escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g');\n\n    function escape(ch) {\n      return '\\\\\\\\\\\\' + ch;\n    }\n\n    function unescapeText(text) {\n      return text.replace(escapedStartRegexp, startSymbol).\n        replace(escapedEndRegexp, endSymbol);\n    }\n\n    // TODO: this is the same as the constantWatchDelegate in parse.js\n    function constantWatchDelegate(scope, listener, objectEquality, constantInterp) {\n      var unwatch = scope.$watch(function constantInterpolateWatch(scope) {\n        unwatch();\n        return constantInterp(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    /**\n     * @ngdoc service\n     * @name $interpolate\n     * @kind function\n     *\n     * @requires $parse\n     * @requires $sce\n     *\n     * @description\n     *\n     * Compiles a string with markup into an interpolation function. This service is used by the\n     * HTML {@link ng.$compile $compile} service for data binding. See\n     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the\n     * interpolation markup.\n     *\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var exp = $interpolate('Hello {{name | uppercase}}!');\n     *   expect(exp({name:'AngularJS'})).toEqual('Hello ANGULAR!');\n     * ```\n     *\n     * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is\n     * `true`, the interpolation function will return `undefined` unless all embedded expressions\n     * evaluate to a value other than `undefined`.\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var context = {greeting: 'Hello', name: undefined };\n     *\n     *   // default \"forgiving\" mode\n     *   var exp = $interpolate('{{greeting}} {{name}}!');\n     *   expect(exp(context)).toEqual('Hello !');\n     *\n     *   // \"allOrNothing\" mode\n     *   exp = $interpolate('{{greeting}} {{name}}!', false, null, true);\n     *   expect(exp(context)).toBeUndefined();\n     *   context.name = 'AngularJS';\n     *   expect(exp(context)).toEqual('Hello AngularJS!');\n     * ```\n     *\n     * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior.\n     *\n     * #### Escaped Interpolation\n     * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers\n     * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash).\n     * It will be rendered as a regular start/end marker, and will not be interpreted as an expression\n     * or binding.\n     *\n     * This enables web-servers to prevent script injection attacks and defacing attacks, to some\n     * degree, while also enabling code examples to work without relying on the\n     * {@link ng.directive:ngNonBindable ngNonBindable} directive.\n     *\n     * **For security purposes, it is strongly encouraged that web servers escape user-supplied data,\n     * replacing angle brackets (&lt;, &gt;) with &amp;lt; and &amp;gt; respectively, and replacing all\n     * interpolation start/end markers with their escaped counterparts.**\n     *\n     * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered\n     * output when the $interpolate service processes the text. So, for HTML elements interpolated\n     * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter\n     * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such,\n     * this is typically useful only when user-data is used in rendering a template from the server, or\n     * when otherwise untrusted data is used by a directive.\n     *\n     * <example name=\"interpolation\">\n     *  <file name=\"index.html\">\n     *    <div ng-init=\"username='A user'\">\n     *      <p ng-init=\"apptitle='Escaping demo'\">{{apptitle}}: \\{\\{ username = \"defaced value\"; \\}\\}\n     *        </p>\n     *      <p><strong>{{username}}</strong> attempts to inject code which will deface the\n     *        application, but fails to accomplish their task, because the server has correctly\n     *        escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash)\n     *        characters.</p>\n     *      <p>Instead, the result of the attempted script injection is visible, and can be removed\n     *        from the database by an administrator.</p>\n     *    </div>\n     *  </file>\n     * </example>\n     *\n     * @knownIssue\n     * It is currently not possible for an interpolated expression to contain the interpolation end\n     * symbol. For example, `{{ '}}' }}` will be incorrectly interpreted as `{{ ' }}` + `' }}`, i.e.\n     * an interpolated expression consisting of a single-quote (`'`) and the `' }}` string.\n     *\n     * @knownIssue\n     * All directives and components must use the standard `{{` `}}` interpolation symbols\n     * in their templates. If you change the application interpolation symbols the {@link $compile}\n     * service will attempt to denormalize the standard symbols to the custom symbols.\n     * The denormalization process is not clever enough to know not to replace instances of the standard\n     * symbols where they would not normally be treated as interpolation symbols. For example in the following\n     * code snippet the closing braces of the literal object will get incorrectly denormalized:\n     *\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"}}\">\n     * ```\n     *\n     * The workaround is to ensure that such instances are separated by whitespace:\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"} }\">\n     * ```\n     *\n     * See https://github.com/angular/angular.js/pull/14610#issuecomment-219401099 for more information.\n     *\n     * @param {string} text The text with markup to interpolate.\n     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have\n     *    embedded expression in order to return an interpolation function. Strings with no\n     *    embedded expression will return null for the interpolation function.\n     * @param {string=} trustedContext when provided, the returned function passes the interpolated\n     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,\n     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that\n     *    provides Strict Contextual Escaping for details.\n     * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined\n     *    unless all embedded expressions evaluate to a value other than `undefined`.\n     * @returns {function(context)} an interpolation function which is used to compute the\n     *    interpolated string. The function has these parameters:\n     *\n     * - `context`: evaluation context for all expressions embedded in the interpolated text\n     */\n    function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {\n      // Provide a quick exit and simplified result function for text with no interpolation\n      if (!text.length || text.indexOf(startSymbol) === -1) {\n        var constantInterp;\n        if (!mustHaveExpression) {\n          var unescapedText = unescapeText(text);\n          constantInterp = valueFn(unescapedText);\n          constantInterp.exp = text;\n          constantInterp.expressions = [];\n          constantInterp.$$watchDelegate = constantWatchDelegate;\n        }\n        return constantInterp;\n      }\n\n      allOrNothing = !!allOrNothing;\n      var startIndex,\n          endIndex,\n          index = 0,\n          expressions = [],\n          parseFns = [],\n          textLength = text.length,\n          exp,\n          concat = [],\n          expressionPositions = [];\n\n      while (index < textLength) {\n        if (((startIndex = text.indexOf(startSymbol, index)) !== -1) &&\n             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) !== -1)) {\n          if (index !== startIndex) {\n            concat.push(unescapeText(text.substring(index, startIndex)));\n          }\n          exp = text.substring(startIndex + startSymbolLength, endIndex);\n          expressions.push(exp);\n          parseFns.push($parse(exp, parseStringifyInterceptor));\n          index = endIndex + endSymbolLength;\n          expressionPositions.push(concat.length);\n          concat.push('');\n        } else {\n          // we did not find an interpolation, so we have to add the remainder to the separators array\n          if (index !== textLength) {\n            concat.push(unescapeText(text.substring(index)));\n          }\n          break;\n        }\n      }\n\n      // Concatenating expressions makes it hard to reason about whether some combination of\n      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a\n      // single expression be used for iframe[src], object[src], etc., we ensure that the value\n      // that's used is assigned or constructed by some JS code somewhere that is more testable or\n      // make it obvious that you bound the value to some user controlled value.  This helps reduce\n      // the load when auditing for XSS issues.\n      if (trustedContext && concat.length > 1) {\n          $interpolateMinErr.throwNoconcat(text);\n      }\n\n      if (!mustHaveExpression || expressions.length) {\n        var compute = function(values) {\n          for (var i = 0, ii = expressions.length; i < ii; i++) {\n            if (allOrNothing && isUndefined(values[i])) return;\n            concat[expressionPositions[i]] = values[i];\n          }\n          return concat.join('');\n        };\n\n        var getValue = function(value) {\n          return trustedContext ?\n            $sce.getTrusted(trustedContext, value) :\n            $sce.valueOf(value);\n        };\n\n        return extend(function interpolationFn(context) {\n            var i = 0;\n            var ii = expressions.length;\n            var values = new Array(ii);\n\n            try {\n              for (; i < ii; i++) {\n                values[i] = parseFns[i](context);\n              }\n\n              return compute(values);\n            } catch (err) {\n              $exceptionHandler($interpolateMinErr.interr(text, err));\n            }\n\n          }, {\n          // all of these properties are undocumented for now\n          exp: text, //just for compatibility with regular watchers created via $watch\n          expressions: expressions,\n          $$watchDelegate: function(scope, listener) {\n            var lastValue;\n            return scope.$watchGroup(parseFns, /** @this */ function interpolateFnWatcher(values, oldValues) {\n              var currValue = compute(values);\n              listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope);\n              lastValue = currValue;\n            });\n          }\n        });\n      }\n\n      function parseStringifyInterceptor(value) {\n        try {\n          value = getValue(value);\n          return allOrNothing && !isDefined(value) ? value : stringify(value);\n        } catch (err) {\n          $exceptionHandler($interpolateMinErr.interr(text, err));\n        }\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#startSymbol\n     * @description\n     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.\n     *\n     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} start symbol.\n     */\n    $interpolate.startSymbol = function() {\n      return startSymbol;\n    };\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#endSymbol\n     * @description\n     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n     *\n     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} end symbol.\n     */\n    $interpolate.endSymbol = function() {\n      return endSymbol;\n    };\n\n    return $interpolate;\n  }];\n}\n\n/** @this */\nfunction $IntervalProvider() {\n  this.$get = ['$rootScope', '$window', '$q', '$$q', '$browser',\n       function($rootScope,   $window,   $q,   $$q,   $browser) {\n    var intervals = {};\n\n\n    /**\n     * @ngdoc service\n     * @name $interval\n     *\n     * @description\n     * AngularJS's wrapper for `window.setInterval`. The `fn` function is executed every `delay`\n     * milliseconds.\n     *\n     * The return value of registering an interval function is a promise. This promise will be\n     * notified upon each tick of the interval, and will be resolved after `count` iterations, or\n     * run indefinitely if `count` is not defined. The value of the notification will be the\n     * number of iterations that have run.\n     * To cancel an interval, call `$interval.cancel(promise)`.\n     *\n     * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n     * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n     * time.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note**: Intervals created by this service must be explicitly destroyed when you are finished\n     * with them.  In particular they are not automatically destroyed when a controller's scope or a\n     * directive's element are destroyed.\n     * You should take this into consideration and make sure to always cancel the interval at the\n     * appropriate moment.  See the example below for more details on how and when to do this.\n     * </div>\n     *\n     * @param {function()} fn A function that should be called repeatedly. If no additional arguments\n     *   are passed (see below), the function is called with the current iteration count.\n     * @param {number} delay Number of milliseconds between each function call.\n     * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n     *   indefinitely.\n     * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n     *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n     * @param {...*=} Pass additional parameters to the executed function.\n     * @returns {promise} A promise which will be notified on each iteration. It will resolve once all iterations of the interval complete.\n     *\n     * @example\n     * <example module=\"intervalExample\" name=\"interval-service\">\n     * <file name=\"index.html\">\n     *   <script>\n     *     angular.module('intervalExample', [])\n     *       .controller('ExampleController', ['$scope', '$interval',\n     *         function($scope, $interval) {\n     *           $scope.format = 'M/d/yy h:mm:ss a';\n     *           $scope.blood_1 = 100;\n     *           $scope.blood_2 = 120;\n     *\n     *           var stop;\n     *           $scope.fight = function() {\n     *             // Don't start a new fight if we are already fighting\n     *             if ( angular.isDefined(stop) ) return;\n     *\n     *             stop = $interval(function() {\n     *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {\n     *                 $scope.blood_1 = $scope.blood_1 - 3;\n     *                 $scope.blood_2 = $scope.blood_2 - 4;\n     *               } else {\n     *                 $scope.stopFight();\n     *               }\n     *             }, 100);\n     *           };\n     *\n     *           $scope.stopFight = function() {\n     *             if (angular.isDefined(stop)) {\n     *               $interval.cancel(stop);\n     *               stop = undefined;\n     *             }\n     *           };\n     *\n     *           $scope.resetFight = function() {\n     *             $scope.blood_1 = 100;\n     *             $scope.blood_2 = 120;\n     *           };\n     *\n     *           $scope.$on('$destroy', function() {\n     *             // Make sure that the interval is destroyed too\n     *             $scope.stopFight();\n     *           });\n     *         }])\n     *       // Register the 'myCurrentTime' directive factory method.\n     *       // We inject $interval and dateFilter service since the factory method is DI.\n     *       .directive('myCurrentTime', ['$interval', 'dateFilter',\n     *         function($interval, dateFilter) {\n     *           // return the directive link function. (compile function not needed)\n     *           return function(scope, element, attrs) {\n     *             var format,  // date format\n     *                 stopTime; // so that we can cancel the time updates\n     *\n     *             // used to update the UI\n     *             function updateTime() {\n     *               element.text(dateFilter(new Date(), format));\n     *             }\n     *\n     *             // watch the expression, and update the UI on change.\n     *             scope.$watch(attrs.myCurrentTime, function(value) {\n     *               format = value;\n     *               updateTime();\n     *             });\n     *\n     *             stopTime = $interval(updateTime, 1000);\n     *\n     *             // listen on DOM destroy (removal) event, and cancel the next UI update\n     *             // to prevent updating time after the DOM element was removed.\n     *             element.on('$destroy', function() {\n     *               $interval.cancel(stopTime);\n     *             });\n     *           }\n     *         }]);\n     *   </script>\n     *\n     *   <div>\n     *     <div ng-controller=\"ExampleController\">\n     *       <label>Date format: <input ng-model=\"format\"></label> <hr/>\n     *       Current time is: <span my-current-time=\"format\"></span>\n     *       <hr/>\n     *       Blood 1 : <font color='red'>{{blood_1}}</font>\n     *       Blood 2 : <font color='red'>{{blood_2}}</font>\n     *       <button type=\"button\" data-ng-click=\"fight()\">Fight</button>\n     *       <button type=\"button\" data-ng-click=\"stopFight()\">StopFight</button>\n     *       <button type=\"button\" data-ng-click=\"resetFight()\">resetFight</button>\n     *     </div>\n     *   </div>\n     *\n     * </file>\n     * </example>\n     */\n    function interval(fn, delay, count, invokeApply) {\n      var hasParams = arguments.length > 4,\n          args = hasParams ? sliceArgs(arguments, 4) : [],\n          setInterval = $window.setInterval,\n          clearInterval = $window.clearInterval,\n          iteration = 0,\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise;\n\n      count = isDefined(count) ? count : 0;\n\n      promise.$$intervalId = setInterval(function tick() {\n        if (skipApply) {\n          $browser.defer(callback);\n        } else {\n          $rootScope.$evalAsync(callback);\n        }\n        deferred.notify(iteration++);\n\n        if (count > 0 && iteration >= count) {\n          deferred.resolve(iteration);\n          clearInterval(promise.$$intervalId);\n          delete intervals[promise.$$intervalId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n\n      }, delay);\n\n      intervals[promise.$$intervalId] = deferred;\n\n      return promise;\n\n      function callback() {\n        if (!hasParams) {\n          fn(iteration);\n        } else {\n          fn.apply(null, args);\n        }\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {Promise=} promise returned by the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully canceled.\n     */\n    interval.cancel = function(promise) {\n      if (promise && promise.$$intervalId in intervals) {\n        // Interval cancels should not report as unhandled promise.\n        markQExceptionHandled(intervals[promise.$$intervalId].promise);\n        intervals[promise.$$intervalId].reject('canceled');\n        $window.clearInterval(promise.$$intervalId);\n        delete intervals[promise.$$intervalId];\n        return true;\n      }\n      return false;\n    };\n\n    return interval;\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $jsonpCallbacks\n * @requires $window\n * @description\n * This service handles the lifecycle of callbacks to handle JSONP requests.\n * Override this service if you wish to customise where the callbacks are stored and\n * how they vary compared to the requested url.\n */\nvar $jsonpCallbacksProvider = /** @this */ function() {\n  this.$get = function() {\n    var callbacks = angular.callbacks;\n    var callbackMap = {};\n\n    function createCallback(callbackId) {\n      var callback = function(data) {\n        callback.data = data;\n        callback.called = true;\n      };\n      callback.id = callbackId;\n      return callback;\n    }\n\n    return {\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#createCallback\n       * @param {string} url the url of the JSONP request\n       * @returns {string} the callback path to send to the server as part of the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to create a callback and get hold of the path to the callback\n       * to pass to the server, which will be used to call the callback with its payload in the JSONP response.\n       */\n      createCallback: function(url) {\n        var callbackId = '_' + (callbacks.$$counter++).toString(36);\n        var callbackPath = 'angular.callbacks.' + callbackId;\n        var callback = createCallback(callbackId);\n        callbackMap[callbackPath] = callbacks[callbackId] = callback;\n        return callbackPath;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#wasCalled\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {boolean} whether the callback has been called, as a result of the JSONP response\n       * @description\n       * {@link $httpBackend} calls this method to find out whether the JSONP response actually called the\n       * callback that was passed in the request.\n       */\n      wasCalled: function(callbackPath) {\n        return callbackMap[callbackPath].called;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#getResponse\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {*} the data received from the response via the registered callback\n       * @description\n       * {@link $httpBackend} calls this method to get hold of the data that was provided to the callback\n       * in the JSONP response.\n       */\n      getResponse: function(callbackPath) {\n        return callbackMap[callbackPath].data;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#removeCallback\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to remove the callback after the JSONP request has\n       * completed or timed-out.\n       */\n      removeCallback: function(callbackPath) {\n        var callback = callbackMap[callbackPath];\n        delete callbacks[callback.id];\n        delete callbackMap[callbackPath];\n      }\n    };\n  };\n};\n\n/**\n * @ngdoc service\n * @name $locale\n *\n * @description\n * $locale service provides localization rules for various AngularJS components. As of right now the\n * only public api is:\n *\n * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)\n */\n\nvar PATH_MATCH = /^([^?#]*)(\\?([^#]*))?(#(.*))?$/,\n    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};\nvar $locationMinErr = minErr('$location');\n\n\n/**\n * Encode path using encodeUriSegment, ignoring forward slashes\n *\n * @param {string} path Path to encode\n * @returns {string}\n */\nfunction encodePath(path) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    // decode forward slashes to prevent them from being double encoded\n    segments[i] = encodeUriSegment(segments[i].replace(/%2F/g, '/'));\n  }\n\n  return segments.join('/');\n}\n\nfunction decodePath(path, html5Mode) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    segments[i] = decodeURIComponent(segments[i]);\n    if (html5Mode) {\n      // encode forward slashes to prevent them from being mistaken for path separators\n      segments[i] = segments[i].replace(/\\//g, '%2F');\n    }\n  }\n\n  return segments.join('/');\n}\n\nfunction parseAbsoluteUrl(absoluteUrl, locationObj) {\n  var parsedUrl = urlResolve(absoluteUrl);\n\n  locationObj.$$protocol = parsedUrl.protocol;\n  locationObj.$$host = parsedUrl.hostname;\n  locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;\n}\n\nvar DOUBLE_SLASH_REGEX = /^\\s*[\\\\/]{2,}/;\nfunction parseAppUrl(url, locationObj, html5Mode) {\n\n  if (DOUBLE_SLASH_REGEX.test(url)) {\n    throw $locationMinErr('badpath', 'Invalid url \"{0}\".', url);\n  }\n\n  var prefixed = (url.charAt(0) !== '/');\n  if (prefixed) {\n    url = '/' + url;\n  }\n  var match = urlResolve(url);\n  var path = prefixed && match.pathname.charAt(0) === '/' ? match.pathname.substring(1) : match.pathname;\n  locationObj.$$path = decodePath(path, html5Mode);\n  locationObj.$$search = parseKeyValue(match.search);\n  locationObj.$$hash = decodeURIComponent(match.hash);\n\n  // make sure path starts with '/';\n  if (locationObj.$$path && locationObj.$$path.charAt(0) !== '/') {\n    locationObj.$$path = '/' + locationObj.$$path;\n  }\n}\n\nfunction startsWith(str, search) {\n  return str.slice(0, search.length) === search;\n}\n\n/**\n *\n * @param {string} base\n * @param {string} url\n * @returns {string} returns text from `url` after `base` or `undefined` if it does not begin with\n *                   the expected string.\n */\nfunction stripBaseUrl(base, url) {\n  if (startsWith(url, base)) {\n    return url.substr(base.length);\n  }\n}\n\n\nfunction stripHash(url) {\n  var index = url.indexOf('#');\n  return index === -1 ? url : url.substr(0, index);\n}\n\nfunction trimEmptyHash(url) {\n  return url.replace(/(#.+)|#$/, '$1');\n}\n\n\nfunction stripFile(url) {\n  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);\n}\n\n/* return the server only (scheme://host:port) */\nfunction serverBase(url) {\n  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));\n}\n\n\n/**\n * LocationHtml5Url represents a URL\n * This object is exposed as $location service when HTML5 mode is enabled and supported\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} basePrefix URL path prefix\n */\nfunction LocationHtml5Url(appBase, appBaseNoFile, basePrefix) {\n  this.$$html5 = true;\n  basePrefix = basePrefix || '';\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given HTML5 (regular) URL string into properties\n   * @param {string} url HTML5 URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var pathUrl = stripBaseUrl(appBaseNoFile, url);\n    if (!isString(pathUrl)) {\n      throw $locationMinErr('ipthprfx', 'Invalid url \"{0}\", missing path prefix \"{1}\".', url,\n          appBaseNoFile);\n    }\n\n    parseAppUrl(pathUrl, this, true);\n\n    if (!this.$$path) {\n      this.$$path = '/';\n    }\n\n    this.$$compose();\n  };\n\n  /**\n   * Compose url and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/'\n\n    this.$$urlUpdatedByLocation = true;\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n    var appUrl, prevAppUrl;\n    var rewrittenUrl;\n\n\n    if (isDefined(appUrl = stripBaseUrl(appBase, url))) {\n      prevAppUrl = appUrl;\n      if (basePrefix && isDefined(appUrl = stripBaseUrl(basePrefix, appUrl))) {\n        rewrittenUrl = appBaseNoFile + (stripBaseUrl('/', appUrl) || appUrl);\n      } else {\n        rewrittenUrl = appBase + prevAppUrl;\n      }\n    } else if (isDefined(appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBaseNoFile + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when developer doesn't opt into html5 mode.\n * It also serves as the base class for html5 mode fallback on legacy browsers.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) {\n\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given hashbang URL into properties\n   * @param {string} url Hashbang URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var withoutBaseUrl = stripBaseUrl(appBase, url) || stripBaseUrl(appBaseNoFile, url);\n    var withoutHashUrl;\n\n    if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') {\n\n      // The rest of the URL starts with a hash so we have\n      // got either a hashbang path or a plain hash fragment\n      withoutHashUrl = stripBaseUrl(hashPrefix, withoutBaseUrl);\n      if (isUndefined(withoutHashUrl)) {\n        // There was no hashbang prefix so we just have a hash fragment\n        withoutHashUrl = withoutBaseUrl;\n      }\n\n    } else {\n      // There was no hashbang path nor hash fragment:\n      // If we are in HTML5 mode we use what is left as the path;\n      // Otherwise we ignore what is left\n      if (this.$$html5) {\n        withoutHashUrl = withoutBaseUrl;\n      } else {\n        withoutHashUrl = '';\n        if (isUndefined(withoutBaseUrl)) {\n          appBase = url;\n          /** @type {?} */ (this).replace();\n        }\n      }\n    }\n\n    parseAppUrl(withoutHashUrl, this, false);\n\n    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);\n\n    this.$$compose();\n\n    /*\n     * In Windows, on an anchor node on documents loaded from\n     * the filesystem, the browser will return a pathname\n     * prefixed with the drive name ('/C:/path') when a\n     * pathname without a drive is set:\n     *  * a.setAttribute('href', '/foo')\n     *   * a.pathname === '/C:/foo' //true\n     *\n     * Inside of AngularJS, we're always using pathnames that\n     * do not include drive names for routing.\n     */\n    function removeWindowsDriveName(path, url, base) {\n      /*\n      Matches paths for file protocol on windows,\n      such as /C:/foo/bar, and captures only /foo/bar.\n      */\n      var windowsFilePathExp = /^\\/[A-Z]:(\\/.*)/;\n\n      var firstPathSegmentMatch;\n\n      //Get the relative path from the input URL.\n      if (startsWith(url, base)) {\n        url = url.replace(base, '');\n      }\n\n      // The input URL intentionally contains a first path segment that ends with a colon.\n      if (windowsFilePathExp.exec(url)) {\n        return path;\n      }\n\n      firstPathSegmentMatch = windowsFilePathExp.exec(path);\n      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;\n    }\n  };\n\n  /**\n   * Compose hashbang URL and update `absUrl` property\n   * @private\n   */\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');\n\n    this.$$urlUpdatedByLocation = true;\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (stripHash(appBase) === stripHash(url)) {\n      this.$$parse(url);\n      return true;\n    }\n    return false;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when html5 history api is enabled but the browser\n * does not support it.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) {\n  this.$$html5 = true;\n  LocationHashbangUrl.apply(this, arguments);\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n\n    var rewrittenUrl;\n    var appUrl;\n\n    if (appBase === stripHash(url)) {\n      rewrittenUrl = url;\n    } else if ((appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBase + hashPrefix + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n\n  this.$$compose = function() {\n    var search = toKeyValue(this.$$search),\n        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';\n\n    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;\n    // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#'\n    this.$$absUrl = appBase + hashPrefix + this.$$url;\n\n    this.$$urlUpdatedByLocation = true;\n  };\n\n}\n\n\nvar locationPrototype = {\n\n  /**\n   * Ensure absolute URL is initialized.\n   * @private\n   */\n  $$absUrl:'',\n\n  /**\n   * Are we in html5 mode?\n   * @private\n   */\n  $$html5: false,\n\n  /**\n   * Has any change been replacing?\n   * @private\n   */\n  $$replace: false,\n\n  /**\n   * @ngdoc method\n   * @name $location#absUrl\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return full URL representation with all segments encoded according to rules specified in\n   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var absUrl = $location.absUrl();\n   * // => \"http://example.com/#/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @return {string} full URL\n   */\n  absUrl: locationGetter('$$absUrl'),\n\n  /**\n   * @ngdoc method\n   * @name $location#url\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return URL (e.g. `/path?a=b#hash`) when called without any parameter.\n   *\n   * Change path, search and hash, when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var url = $location.url();\n   * // => \"/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @param {string=} url New URL without base prefix (e.g. `/path?a=b#hash`)\n   * @return {string} url\n   */\n  url: function(url) {\n    if (isUndefined(url)) {\n      return this.$$url;\n    }\n\n    var match = PATH_MATCH.exec(url);\n    if (match[1] || url === '') this.path(decodeURIComponent(match[1]));\n    if (match[2] || match[1] || url === '') this.search(match[3] || '');\n    this.hash(match[5] || '');\n\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#protocol\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return protocol of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var protocol = $location.protocol();\n   * // => \"http\"\n   * ```\n   *\n   * @return {string} protocol of current URL\n   */\n  protocol: locationGetter('$$protocol'),\n\n  /**\n   * @ngdoc method\n   * @name $location#host\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return host of current URL.\n   *\n   * Note: compared to the non-AngularJS version `location.host` which returns `hostname:port`, this returns the `hostname` portion only.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var host = $location.host();\n   * // => \"example.com\"\n   *\n   * // given URL http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo\n   * host = $location.host();\n   * // => \"example.com\"\n   * host = location.host;\n   * // => \"example.com:8080\"\n   * ```\n   *\n   * @return {string} host of current URL.\n   */\n  host: locationGetter('$$host'),\n\n  /**\n   * @ngdoc method\n   * @name $location#port\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return port of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var port = $location.port();\n   * // => 80\n   * ```\n   *\n   * @return {Number} port\n   */\n  port: locationGetter('$$port'),\n\n  /**\n   * @ngdoc method\n   * @name $location#path\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return path of current URL when called without any parameter.\n   *\n   * Change path when called with parameter and return `$location`.\n   *\n   * Note: Path should always begin with forward slash (/), this method will add the forward slash\n   * if it is missing.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var path = $location.path();\n   * // => \"/some/path\"\n   * ```\n   *\n   * @param {(string|number)=} path New path\n   * @return {(string|object)} path if called with no parameters, or `$location` if called with a parameter\n   */\n  path: locationGetterSetter('$$path', function(path) {\n    path = path !== null ? path.toString() : '';\n    return path.charAt(0) === '/' ? path : '/' + path;\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#search\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return search part (as object) of current URL when called without any parameter.\n   *\n   * Change search part when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var searchObject = $location.search();\n   * // => {foo: 'bar', baz: 'xoxo'}\n   *\n   * // set foo to 'yipee'\n   * $location.search('foo', 'yipee');\n   * // $location.search() => {foo: 'yipee', baz: 'xoxo'}\n   * ```\n   *\n   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or\n   * hash object.\n   *\n   * When called with a single argument the method acts as a setter, setting the `search` component\n   * of `$location` to the specified value.\n   *\n   * If the argument is a hash object containing an array of values, these values will be encoded\n   * as duplicate search parameters in the URL.\n   *\n   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`\n   * will override only a single search property.\n   *\n   * If `paramValue` is an array, it will override the property of the `search` component of\n   * `$location` specified via the first argument.\n   *\n   * If `paramValue` is `null`, the property specified via the first argument will be deleted.\n   *\n   * If `paramValue` is `true`, the property specified via the first argument will be added with no\n   * value nor trailing equal sign.\n   *\n   * @return {Object} If called with no arguments returns the parsed `search` object. If called with\n   * one or more arguments returns `$location` object itself.\n   */\n  search: function(search, paramValue) {\n    switch (arguments.length) {\n      case 0:\n        return this.$$search;\n      case 1:\n        if (isString(search) || isNumber(search)) {\n          search = search.toString();\n          this.$$search = parseKeyValue(search);\n        } else if (isObject(search)) {\n          search = copy(search, {});\n          // remove object undefined or null properties\n          forEach(search, function(value, key) {\n            if (value == null) delete search[key];\n          });\n\n          this.$$search = search;\n        } else {\n          throw $locationMinErr('isrcharg',\n              'The first argument of the `$location#search()` call must be a string or an object.');\n        }\n        break;\n      default:\n        if (isUndefined(paramValue) || paramValue === null) {\n          delete this.$$search[search];\n        } else {\n          this.$$search[search] = paramValue;\n        }\n    }\n\n    this.$$compose();\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#hash\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Returns the hash fragment when called without any parameters.\n   *\n   * Changes the hash fragment when called with a parameter and returns `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue\n   * var hash = $location.hash();\n   * // => \"hashValue\"\n   * ```\n   *\n   * @param {(string|number)=} hash New hash fragment\n   * @return {string} hash\n   */\n  hash: locationGetterSetter('$$hash', function(hash) {\n    return hash !== null ? hash.toString() : '';\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#replace\n   *\n   * @description\n   * If called, all changes to $location during the current `$digest` will replace the current history\n   * record, instead of adding a new one.\n   */\n  replace: function() {\n    this.$$replace = true;\n    return this;\n  }\n};\n\nforEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) {\n  Location.prototype = Object.create(locationPrototype);\n\n  /**\n   * @ngdoc method\n   * @name $location#state\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return the history state object when called without any parameter.\n   *\n   * Change the history state object when called with one parameter and return `$location`.\n   * The state object is later passed to `pushState` or `replaceState`.\n   *\n   * NOTE: This method is supported only in HTML5 mode and only in browsers supporting\n   * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support\n   * older browsers (like IE9 or Android < 4.0), don't use this method.\n   *\n   * @param {object=} state State object for pushState or replaceState\n   * @return {object} state\n   */\n  Location.prototype.state = function(state) {\n    if (!arguments.length) {\n      return this.$$state;\n    }\n\n    if (Location !== LocationHtml5Url || !this.$$html5) {\n      throw $locationMinErr('nostate', 'History API state support is available only ' +\n        'in HTML5 mode and only in browsers supporting HTML5 History API');\n    }\n    // The user might modify `stateObject` after invoking `$location.state(stateObject)`\n    // but we're changing the $$state reference to $browser.state() during the $digest\n    // so the modification window is narrow.\n    this.$$state = isUndefined(state) ? null : state;\n    this.$$urlUpdatedByLocation = true;\n\n    return this;\n  };\n});\n\n\nfunction locationGetter(property) {\n  return /** @this */ function() {\n    return this[property];\n  };\n}\n\n\nfunction locationGetterSetter(property, preprocess) {\n  return /** @this */ function(value) {\n    if (isUndefined(value)) {\n      return this[property];\n    }\n\n    this[property] = preprocess(value);\n    this.$$compose();\n\n    return this;\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $location\n *\n * @requires $rootElement\n *\n * @description\n * The $location service parses the URL in the browser address bar (based on the\n * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL\n * available to your application. Changes to the URL in the address bar are reflected into\n * $location service and changes to $location are reflected into the browser address bar.\n *\n * **The $location service:**\n *\n * - Exposes the current URL in the browser address bar, so you can\n *   - Watch and observe the URL.\n *   - Change the URL.\n * - Synchronizes the URL with the browser when the user\n *   - Changes the address bar.\n *   - Clicks the back or forward button (or clicks a History link).\n *   - Clicks on a link.\n * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).\n *\n * For more information see {@link guide/$location Developer Guide: Using $location}\n */\n\n/**\n * @ngdoc provider\n * @name $locationProvider\n * @this\n *\n * @description\n * Use the `$locationProvider` to configure how the application deep linking paths are stored.\n */\nfunction $LocationProvider() {\n  var hashPrefix = '!',\n      html5Mode = {\n        enabled: false,\n        requireBase: true,\n        rewriteLinks: true\n      };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#hashPrefix\n   * @description\n   * The default value for the prefix is `'!'`.\n   * @param {string=} prefix Prefix for hash part (containing path and search)\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.hashPrefix = function(prefix) {\n    if (isDefined(prefix)) {\n      hashPrefix = prefix;\n      return this;\n    } else {\n      return hashPrefix;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#html5Mode\n   * @description\n   * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value.\n   *   If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported\n   *   properties:\n   *   - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to\n   *     change urls where supported. Will fall back to hash-prefixed paths in browsers that do not\n   *     support `pushState`.\n   *   - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies\n   *     whether or not a <base> tag is required to be present. If `enabled` and `requireBase` are\n   *     true, and a base tag is not present, an error will be thrown when `$location` is injected.\n   *     See the {@link guide/$location $location guide for more information}\n   *   - **rewriteLinks** - `{boolean|string}` - (default: `true`) When html5Mode is enabled,\n   *     enables/disables URL rewriting for relative links. If set to a string, URL rewriting will\n   *     only happen on links with an attribute that matches the given string. For example, if set\n   *     to `'internal-link'`, then the URL will only be rewritten for `<a internal-link>` links.\n   *     Note that [attribute name normalization](guide/directive#normalization) does not apply\n   *     here, so `'internalLink'` will **not** match `'internal-link'`.\n   *\n   * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter\n   */\n  this.html5Mode = function(mode) {\n    if (isBoolean(mode)) {\n      html5Mode.enabled = mode;\n      return this;\n    } else if (isObject(mode)) {\n\n      if (isBoolean(mode.enabled)) {\n        html5Mode.enabled = mode.enabled;\n      }\n\n      if (isBoolean(mode.requireBase)) {\n        html5Mode.requireBase = mode.requireBase;\n      }\n\n      if (isBoolean(mode.rewriteLinks) || isString(mode.rewriteLinks)) {\n        html5Mode.rewriteLinks = mode.rewriteLinks;\n      }\n\n      return this;\n    } else {\n      return html5Mode;\n    }\n  };\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeStart\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted before a URL will change.\n   *\n   * This change can be prevented by calling\n   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more\n   * details about event object. Upon successful change\n   * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeSuccess\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted after a URL was changed.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window',\n      function($rootScope, $browser, $sniffer, $rootElement, $window) {\n    var $location,\n        LocationMode,\n        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''\n        initialUrl = $browser.url(),\n        appBase;\n\n    if (html5Mode.enabled) {\n      if (!baseHref && html5Mode.requireBase) {\n        throw $locationMinErr('nobase',\n          '$location in HTML5 mode requires a <base> tag to be present!');\n      }\n      appBase = serverBase(initialUrl) + (baseHref || '/');\n      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;\n    } else {\n      appBase = stripHash(initialUrl);\n      LocationMode = LocationHashbangUrl;\n    }\n    var appBaseNoFile = stripFile(appBase);\n\n    $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix);\n    $location.$$parseLinkUrl(initialUrl, initialUrl);\n\n    $location.$$state = $browser.state();\n\n    var IGNORE_URI_REGEXP = /^\\s*(javascript|mailto):/i;\n\n    function setBrowserUrlWithFallback(url, replace, state) {\n      var oldUrl = $location.url();\n      var oldState = $location.$$state;\n      try {\n        $browser.url(url, replace, state);\n\n        // Make sure $location.state() returns referentially identical (not just deeply equal)\n        // state object; this makes possible quick checking if the state changed in the digest\n        // loop. Checking deep equality would be too expensive.\n        $location.$$state = $browser.state();\n      } catch (e) {\n        // Restore old values if pushState fails\n        $location.url(oldUrl);\n        $location.$$state = oldState;\n\n        throw e;\n      }\n    }\n\n    $rootElement.on('click', function(event) {\n      var rewriteLinks = html5Mode.rewriteLinks;\n      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)\n      // currently we open nice url link and redirect then\n\n      if (!rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which === 2 || event.button === 2) return;\n\n      var elm = jqLite(event.target);\n\n      // traverse the DOM up to find first A tag\n      while (nodeName_(elm[0]) !== 'a') {\n        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)\n        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;\n      }\n\n      if (isString(rewriteLinks) && isUndefined(elm.attr(rewriteLinks))) return;\n\n      var absHref = elm.prop('href');\n      // get the actual href attribute - see\n      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx\n      var relHref = elm.attr('href') || elm.attr('xlink:href');\n\n      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {\n        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during\n        // an animation.\n        absHref = urlResolve(absHref.animVal).href;\n      }\n\n      // Ignore when url is started with javascript: or mailto:\n      if (IGNORE_URI_REGEXP.test(absHref)) return;\n\n      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {\n        if ($location.$$parseLinkUrl(absHref, relHref)) {\n          // We do a preventDefault for all urls that are part of the AngularJS application,\n          // in html5mode and also without, so that we are able to abort navigation without\n          // getting double entries in the location history.\n          event.preventDefault();\n          // update location manually\n          if ($location.absUrl() !== $browser.url()) {\n            $rootScope.$apply();\n            // hack to work around FF6 bug 684208 when scenario runner clicks on links\n            $window.angular['ff-684208-preventDefault'] = true;\n          }\n        }\n      }\n    });\n\n\n    // rewrite hashbang url <> html5 url\n    if (trimEmptyHash($location.absUrl()) !== trimEmptyHash(initialUrl)) {\n      $browser.url($location.absUrl(), true);\n    }\n\n    var initializing = true;\n\n    // update $location when $browser url changes\n    $browser.onUrlChange(function(newUrl, newState) {\n\n      if (!startsWith(newUrl, appBaseNoFile)) {\n        // If we are navigating outside of the app then force a reload\n        $window.location.href = newUrl;\n        return;\n      }\n\n      $rootScope.$evalAsync(function() {\n        var oldUrl = $location.absUrl();\n        var oldState = $location.$$state;\n        var defaultPrevented;\n        newUrl = trimEmptyHash(newUrl);\n        $location.$$parse(newUrl);\n        $location.$$state = newState;\n\n        defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n            newState, oldState).defaultPrevented;\n\n        // if the location was changed by a `$locationChangeStart` handler then stop\n        // processing this location change\n        if ($location.absUrl() !== newUrl) return;\n\n        if (defaultPrevented) {\n          $location.$$parse(oldUrl);\n          $location.$$state = oldState;\n          setBrowserUrlWithFallback(oldUrl, false, oldState);\n        } else {\n          initializing = false;\n          afterLocationChange(oldUrl, oldState);\n        }\n      });\n      if (!$rootScope.$$phase) $rootScope.$digest();\n    });\n\n    // update browser\n    $rootScope.$watch(function $locationWatch() {\n      if (initializing || $location.$$urlUpdatedByLocation) {\n        $location.$$urlUpdatedByLocation = false;\n\n        var oldUrl = trimEmptyHash($browser.url());\n        var newUrl = trimEmptyHash($location.absUrl());\n        var oldState = $browser.state();\n        var currentReplace = $location.$$replace;\n        var urlOrStateChanged = oldUrl !== newUrl ||\n          ($location.$$html5 && $sniffer.history && oldState !== $location.$$state);\n\n        if (initializing || urlOrStateChanged) {\n          initializing = false;\n\n          $rootScope.$evalAsync(function() {\n            var newUrl = $location.absUrl();\n            var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n                $location.$$state, oldState).defaultPrevented;\n\n            // if the location was changed by a `$locationChangeStart` handler then stop\n            // processing this location change\n            if ($location.absUrl() !== newUrl) return;\n\n            if (defaultPrevented) {\n              $location.$$parse(oldUrl);\n              $location.$$state = oldState;\n            } else {\n              if (urlOrStateChanged) {\n                setBrowserUrlWithFallback(newUrl, currentReplace,\n                                          oldState === $location.$$state ? null : $location.$$state);\n              }\n              afterLocationChange(oldUrl, oldState);\n            }\n          });\n        }\n      }\n\n      $location.$$replace = false;\n\n      // we don't need to return anything because $evalAsync will make the digest loop dirty when\n      // there is a change\n    });\n\n    return $location;\n\n    function afterLocationChange(oldUrl, oldState) {\n      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl,\n        $location.$$state, oldState);\n    }\n}];\n}\n\n/**\n * @ngdoc service\n * @name $log\n * @requires $window\n *\n * @description\n * Simple service for logging. Default implementation safely writes the message\n * into the browser's console (if present).\n *\n * The main purpose of this service is to simplify debugging and troubleshooting.\n *\n * To reveal the location of the calls to `$log` in the JavaScript console,\n * you can \"blackbox\" the AngularJS source in your browser:\n *\n * [Mozilla description of blackboxing](https://developer.mozilla.org/en-US/docs/Tools/Debugger/How_to/Black_box_a_source).\n * [Chrome description of blackboxing](https://developer.chrome.com/devtools/docs/blackboxing).\n *\n * Note: Not all browsers support blackboxing.\n *\n * The default is to log `debug` messages. You can use\n * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.\n *\n * @example\n   <example module=\"logExample\" name=\"log-service\">\n     <file name=\"script.js\">\n       angular.module('logExample', [])\n         .controller('LogController', ['$scope', '$log', function($scope, $log) {\n           $scope.$log = $log;\n           $scope.message = 'Hello World!';\n         }]);\n     </file>\n     <file name=\"index.html\">\n       <div ng-controller=\"LogController\">\n         <p>Reload this page with open console, enter text and hit the log button...</p>\n         <label>Message:\n         <input type=\"text\" ng-model=\"message\" /></label>\n         <button ng-click=\"$log.log(message)\">log</button>\n         <button ng-click=\"$log.warn(message)\">warn</button>\n         <button ng-click=\"$log.info(message)\">info</button>\n         <button ng-click=\"$log.error(message)\">error</button>\n         <button ng-click=\"$log.debug(message)\">debug</button>\n       </div>\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc provider\n * @name $logProvider\n * @this\n *\n * @description\n * Use the `$logProvider` to configure how the application logs messages\n */\nfunction $LogProvider() {\n  var debug = true,\n      self = this;\n\n  /**\n   * @ngdoc method\n   * @name $logProvider#debugEnabled\n   * @description\n   * @param {boolean=} flag enable or disable debug level messages\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.debugEnabled = function(flag) {\n    if (isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = ['$window', function($window) {\n    // Support: IE 9-11, Edge 12-14+\n    // IE/Edge display errors in such a way that it requires the user to click in 4 places\n    // to see the stack trace. There is no way to feature-detect it so there's a chance\n    // of the user agent sniffing to go wrong but since it's only about logging, this shouldn't\n    // break apps. Other browsers display errors in a sensible way and some of them map stack\n    // traces along source maps if available so it makes sense to let browsers display it\n    // as they want.\n    var formatStackTrace = msie || /\\bEdge\\//.test($window.navigator && $window.navigator.userAgent);\n\n    return {\n      /**\n       * @ngdoc method\n       * @name $log#log\n       *\n       * @description\n       * Write a log message\n       */\n      log: consoleLog('log'),\n\n      /**\n       * @ngdoc method\n       * @name $log#info\n       *\n       * @description\n       * Write an information message\n       */\n      info: consoleLog('info'),\n\n      /**\n       * @ngdoc method\n       * @name $log#warn\n       *\n       * @description\n       * Write a warning message\n       */\n      warn: consoleLog('warn'),\n\n      /**\n       * @ngdoc method\n       * @name $log#error\n       *\n       * @description\n       * Write an error message\n       */\n      error: consoleLog('error'),\n\n      /**\n       * @ngdoc method\n       * @name $log#debug\n       *\n       * @description\n       * Write a debug message\n       */\n      debug: (function() {\n        var fn = consoleLog('debug');\n\n        return function() {\n          if (debug) {\n            fn.apply(self, arguments);\n          }\n        };\n      })()\n    };\n\n    function formatError(arg) {\n      if (isError(arg)) {\n        if (arg.stack && formatStackTrace) {\n          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)\n              ? 'Error: ' + arg.message + '\\n' + arg.stack\n              : arg.stack;\n        } else if (arg.sourceURL) {\n          arg = arg.message + '\\n' + arg.sourceURL + ':' + arg.line;\n        }\n      }\n      return arg;\n    }\n\n    function consoleLog(type) {\n      var console = $window.console || {},\n          logFn = console[type] || console.log || noop;\n\n      return function() {\n        var args = [];\n        forEach(arguments, function(arg) {\n          args.push(formatError(arg));\n        });\n        // Support: IE 9 only\n        // console methods don't inherit from Function.prototype in IE 9 so we can't\n        // call `logFn.apply(console, args)` directly.\n        return Function.prototype.apply.call(logFn, console, args);\n      };\n    }\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $parseMinErr = minErr('$parse');\n\nvar objectValueOf = {}.constructor.prototype.valueOf;\n\n// Sandboxing AngularJS Expressions\n// ------------------------------\n// AngularJS expressions are no longer sandboxed. So it is now even easier to access arbitrary JS code by\n// various means such as obtaining a reference to native JS functions like the Function constructor.\n//\n// As an example, consider the following AngularJS expression:\n//\n//   {}.toString.constructor('alert(\"evil JS code\")')\n//\n// It is important to realize that if you create an expression from a string that contains user provided\n// content then it is possible that your application contains a security vulnerability to an XSS style attack.\n//\n// See https://docs.angularjs.org/guide/security\n\n\nfunction getStringValue(name) {\n  // Property names must be strings. This means that non-string objects cannot be used\n  // as keys in an object. Any non-string object, including a number, is typecasted\n  // into a string via the toString method.\n  // -- MDN, https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Property_accessors#Property_names\n  //\n  // So, to ensure that we are checking the same `name` that JavaScript would use, we cast it\n  // to a string. It's not always possible. If `name` is an object and its `toString` method is\n  // 'broken' (doesn't return a string, isn't a function, etc.), an error will be thrown:\n  //\n  // TypeError: Cannot convert object to primitive value\n  //\n  // For performance reasons, we don't catch this error here and allow it to propagate up the call\n  // stack. Note that you'll get the same error in JavaScript if you try to access a property using\n  // such a 'broken' object as a key.\n  return name + '';\n}\n\n\nvar OPERATORS = createMap();\nforEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; });\nvar ESCAPE = {'n':'\\n', 'f':'\\f', 'r':'\\r', 't':'\\t', 'v':'\\v', '\\'':'\\'', '\"':'\"'};\n\n\n/////////////////////////////////////////\n\n\n/**\n * @constructor\n */\nvar Lexer = function Lexer(options) {\n  this.options = options;\n};\n\nLexer.prototype = {\n  constructor: Lexer,\n\n  lex: function(text) {\n    this.text = text;\n    this.index = 0;\n    this.tokens = [];\n\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (ch === '\"' || ch === '\\'') {\n        this.readString(ch);\n      } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) {\n        this.readNumber();\n      } else if (this.isIdentifierStart(this.peekMultichar())) {\n        this.readIdent();\n      } else if (this.is(ch, '(){}[].,;:?')) {\n        this.tokens.push({index: this.index, text: ch});\n        this.index++;\n      } else if (this.isWhitespace(ch)) {\n        this.index++;\n      } else {\n        var ch2 = ch + this.peek();\n        var ch3 = ch2 + this.peek(2);\n        var op1 = OPERATORS[ch];\n        var op2 = OPERATORS[ch2];\n        var op3 = OPERATORS[ch3];\n        if (op1 || op2 || op3) {\n          var token = op3 ? ch3 : (op2 ? ch2 : ch);\n          this.tokens.push({index: this.index, text: token, operator: true});\n          this.index += token.length;\n        } else {\n          this.throwError('Unexpected next character ', this.index, this.index + 1);\n        }\n      }\n    }\n    return this.tokens;\n  },\n\n  is: function(ch, chars) {\n    return chars.indexOf(ch) !== -1;\n  },\n\n  peek: function(i) {\n    var num = i || 1;\n    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;\n  },\n\n  isNumber: function(ch) {\n    return ('0' <= ch && ch <= '9') && typeof ch === 'string';\n  },\n\n  isWhitespace: function(ch) {\n    // IE treats non-breaking space as \\u00A0\n    return (ch === ' ' || ch === '\\r' || ch === '\\t' ||\n            ch === '\\n' || ch === '\\v' || ch === '\\u00A0');\n  },\n\n  isIdentifierStart: function(ch) {\n    return this.options.isIdentifierStart ?\n        this.options.isIdentifierStart(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierStart(ch);\n  },\n\n  isValidIdentifierStart: function(ch) {\n    return ('a' <= ch && ch <= 'z' ||\n            'A' <= ch && ch <= 'Z' ||\n            '_' === ch || ch === '$');\n  },\n\n  isIdentifierContinue: function(ch) {\n    return this.options.isIdentifierContinue ?\n        this.options.isIdentifierContinue(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierContinue(ch);\n  },\n\n  isValidIdentifierContinue: function(ch, cp) {\n    return this.isValidIdentifierStart(ch, cp) || this.isNumber(ch);\n  },\n\n  codePointAt: function(ch) {\n    if (ch.length === 1) return ch.charCodeAt(0);\n    // eslint-disable-next-line no-bitwise\n    return (ch.charCodeAt(0) << 10) + ch.charCodeAt(1) - 0x35FDC00;\n  },\n\n  peekMultichar: function() {\n    var ch = this.text.charAt(this.index);\n    var peek = this.peek();\n    if (!peek) {\n      return ch;\n    }\n    var cp1 = ch.charCodeAt(0);\n    var cp2 = peek.charCodeAt(0);\n    if (cp1 >= 0xD800 && cp1 <= 0xDBFF && cp2 >= 0xDC00 && cp2 <= 0xDFFF) {\n      return ch + peek;\n    }\n    return ch;\n  },\n\n  isExpOperator: function(ch) {\n    return (ch === '-' || ch === '+' || this.isNumber(ch));\n  },\n\n  throwError: function(error, start, end) {\n    end = end || this.index;\n    var colStr = (isDefined(start)\n            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'\n            : ' ' + end);\n    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',\n        error, colStr, this.text);\n  },\n\n  readNumber: function() {\n    var number = '';\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = lowercase(this.text.charAt(this.index));\n      if (ch === '.' || this.isNumber(ch)) {\n        number += ch;\n      } else {\n        var peekCh = this.peek();\n        if (ch === 'e' && this.isExpOperator(peekCh)) {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            peekCh && this.isNumber(peekCh) &&\n            number.charAt(number.length - 1) === 'e') {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            (!peekCh || !this.isNumber(peekCh)) &&\n            number.charAt(number.length - 1) === 'e') {\n          this.throwError('Invalid exponent');\n        } else {\n          break;\n        }\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: number,\n      constant: true,\n      value: Number(number)\n    });\n  },\n\n  readIdent: function() {\n    var start = this.index;\n    this.index += this.peekMultichar().length;\n    while (this.index < this.text.length) {\n      var ch = this.peekMultichar();\n      if (!this.isIdentifierContinue(ch)) {\n        break;\n      }\n      this.index += ch.length;\n    }\n    this.tokens.push({\n      index: start,\n      text: this.text.slice(start, this.index),\n      identifier: true\n    });\n  },\n\n  readString: function(quote) {\n    var start = this.index;\n    this.index++;\n    var string = '';\n    var rawString = quote;\n    var escape = false;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      rawString += ch;\n      if (escape) {\n        if (ch === 'u') {\n          var hex = this.text.substring(this.index + 1, this.index + 5);\n          if (!hex.match(/[\\da-f]{4}/i)) {\n            this.throwError('Invalid unicode escape [\\\\u' + hex + ']');\n          }\n          this.index += 4;\n          string += String.fromCharCode(parseInt(hex, 16));\n        } else {\n          var rep = ESCAPE[ch];\n          string = string + (rep || ch);\n        }\n        escape = false;\n      } else if (ch === '\\\\') {\n        escape = true;\n      } else if (ch === quote) {\n        this.index++;\n        this.tokens.push({\n          index: start,\n          text: rawString,\n          constant: true,\n          value: string\n        });\n        return;\n      } else {\n        string += ch;\n      }\n      this.index++;\n    }\n    this.throwError('Unterminated quote', start);\n  }\n};\n\nvar AST = function AST(lexer, options) {\n  this.lexer = lexer;\n  this.options = options;\n};\n\nAST.Program = 'Program';\nAST.ExpressionStatement = 'ExpressionStatement';\nAST.AssignmentExpression = 'AssignmentExpression';\nAST.ConditionalExpression = 'ConditionalExpression';\nAST.LogicalExpression = 'LogicalExpression';\nAST.BinaryExpression = 'BinaryExpression';\nAST.UnaryExpression = 'UnaryExpression';\nAST.CallExpression = 'CallExpression';\nAST.MemberExpression = 'MemberExpression';\nAST.Identifier = 'Identifier';\nAST.Literal = 'Literal';\nAST.ArrayExpression = 'ArrayExpression';\nAST.Property = 'Property';\nAST.ObjectExpression = 'ObjectExpression';\nAST.ThisExpression = 'ThisExpression';\nAST.LocalsExpression = 'LocalsExpression';\n\n// Internal use only\nAST.NGValueParameter = 'NGValueParameter';\n\nAST.prototype = {\n  ast: function(text) {\n    this.text = text;\n    this.tokens = this.lexer.lex(text);\n\n    var value = this.program();\n\n    if (this.tokens.length !== 0) {\n      this.throwError('is an unexpected token', this.tokens[0]);\n    }\n\n    return value;\n  },\n\n  program: function() {\n    var body = [];\n    while (true) {\n      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))\n        body.push(this.expressionStatement());\n      if (!this.expect(';')) {\n        return { type: AST.Program, body: body};\n      }\n    }\n  },\n\n  expressionStatement: function() {\n    return { type: AST.ExpressionStatement, expression: this.filterChain() };\n  },\n\n  filterChain: function() {\n    var left = this.expression();\n    while (this.expect('|')) {\n      left = this.filter(left);\n    }\n    return left;\n  },\n\n  expression: function() {\n    return this.assignment();\n  },\n\n  assignment: function() {\n    var result = this.ternary();\n    if (this.expect('=')) {\n      if (!isAssignable(result)) {\n        throw $parseMinErr('lval', 'Trying to assign a value to a non l-value');\n      }\n\n      result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='};\n    }\n    return result;\n  },\n\n  ternary: function() {\n    var test = this.logicalOR();\n    var alternate;\n    var consequent;\n    if (this.expect('?')) {\n      alternate = this.expression();\n      if (this.consume(':')) {\n        consequent = this.expression();\n        return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent};\n      }\n    }\n    return test;\n  },\n\n  logicalOR: function() {\n    var left = this.logicalAND();\n    while (this.expect('||')) {\n      left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() };\n    }\n    return left;\n  },\n\n  logicalAND: function() {\n    var left = this.equality();\n    while (this.expect('&&')) {\n      left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()};\n    }\n    return left;\n  },\n\n  equality: function() {\n    var left = this.relational();\n    var token;\n    while ((token = this.expect('==','!=','===','!=='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() };\n    }\n    return left;\n  },\n\n  relational: function() {\n    var left = this.additive();\n    var token;\n    while ((token = this.expect('<', '>', '<=', '>='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() };\n    }\n    return left;\n  },\n\n  additive: function() {\n    var left = this.multiplicative();\n    var token;\n    while ((token = this.expect('+','-'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() };\n    }\n    return left;\n  },\n\n  multiplicative: function() {\n    var left = this.unary();\n    var token;\n    while ((token = this.expect('*','/','%'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() };\n    }\n    return left;\n  },\n\n  unary: function() {\n    var token;\n    if ((token = this.expect('+', '-', '!'))) {\n      return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() };\n    } else {\n      return this.primary();\n    }\n  },\n\n  primary: function() {\n    var primary;\n    if (this.expect('(')) {\n      primary = this.filterChain();\n      this.consume(')');\n    } else if (this.expect('[')) {\n      primary = this.arrayDeclaration();\n    } else if (this.expect('{')) {\n      primary = this.object();\n    } else if (this.selfReferential.hasOwnProperty(this.peek().text)) {\n      primary = copy(this.selfReferential[this.consume().text]);\n    } else if (this.options.literals.hasOwnProperty(this.peek().text)) {\n      primary = { type: AST.Literal, value: this.options.literals[this.consume().text]};\n    } else if (this.peek().identifier) {\n      primary = this.identifier();\n    } else if (this.peek().constant) {\n      primary = this.constant();\n    } else {\n      this.throwError('not a primary expression', this.peek());\n    }\n\n    var next;\n    while ((next = this.expect('(', '[', '.'))) {\n      if (next.text === '(') {\n        primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() };\n        this.consume(')');\n      } else if (next.text === '[') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true };\n        this.consume(']');\n      } else if (next.text === '.') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false };\n      } else {\n        this.throwError('IMPOSSIBLE');\n      }\n    }\n    return primary;\n  },\n\n  filter: function(baseExpression) {\n    var args = [baseExpression];\n    var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true};\n\n    while (this.expect(':')) {\n      args.push(this.expression());\n    }\n\n    return result;\n  },\n\n  parseArguments: function() {\n    var args = [];\n    if (this.peekToken().text !== ')') {\n      do {\n        args.push(this.filterChain());\n      } while (this.expect(','));\n    }\n    return args;\n  },\n\n  identifier: function() {\n    var token = this.consume();\n    if (!token.identifier) {\n      this.throwError('is not a valid identifier', token);\n    }\n    return { type: AST.Identifier, name: token.text };\n  },\n\n  constant: function() {\n    // TODO check that it is a constant\n    return { type: AST.Literal, value: this.consume().value };\n  },\n\n  arrayDeclaration: function() {\n    var elements = [];\n    if (this.peekToken().text !== ']') {\n      do {\n        if (this.peek(']')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        elements.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(']');\n\n    return { type: AST.ArrayExpression, elements: elements };\n  },\n\n  object: function() {\n    var properties = [], property;\n    if (this.peekToken().text !== '}') {\n      do {\n        if (this.peek('}')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        property = {type: AST.Property, kind: 'init'};\n        if (this.peek().constant) {\n          property.key = this.constant();\n          property.computed = false;\n          this.consume(':');\n          property.value = this.expression();\n        } else if (this.peek().identifier) {\n          property.key = this.identifier();\n          property.computed = false;\n          if (this.peek(':')) {\n            this.consume(':');\n            property.value = this.expression();\n          } else {\n            property.value = property.key;\n          }\n        } else if (this.peek('[')) {\n          this.consume('[');\n          property.key = this.expression();\n          this.consume(']');\n          property.computed = true;\n          this.consume(':');\n          property.value = this.expression();\n        } else {\n          this.throwError('invalid key', this.peek());\n        }\n        properties.push(property);\n      } while (this.expect(','));\n    }\n    this.consume('}');\n\n    return {type: AST.ObjectExpression, properties: properties };\n  },\n\n  throwError: function(msg, token) {\n    throw $parseMinErr('syntax',\n        'Syntax Error: Token \\'{0}\\' {1} at column {2} of the expression [{3}] starting at [{4}].',\n          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));\n  },\n\n  consume: function(e1) {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n\n    var token = this.expect(e1);\n    if (!token) {\n      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());\n    }\n    return token;\n  },\n\n  peekToken: function() {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n    return this.tokens[0];\n  },\n\n  peek: function(e1, e2, e3, e4) {\n    return this.peekAhead(0, e1, e2, e3, e4);\n  },\n\n  peekAhead: function(i, e1, e2, e3, e4) {\n    if (this.tokens.length > i) {\n      var token = this.tokens[i];\n      var t = token.text;\n      if (t === e1 || t === e2 || t === e3 || t === e4 ||\n          (!e1 && !e2 && !e3 && !e4)) {\n        return token;\n      }\n    }\n    return false;\n  },\n\n  expect: function(e1, e2, e3, e4) {\n    var token = this.peek(e1, e2, e3, e4);\n    if (token) {\n      this.tokens.shift();\n      return token;\n    }\n    return false;\n  },\n\n  selfReferential: {\n    'this': {type: AST.ThisExpression },\n    '$locals': {type: AST.LocalsExpression }\n  }\n};\n\nfunction ifDefined(v, d) {\n  return typeof v !== 'undefined' ? v : d;\n}\n\nfunction plusFn(l, r) {\n  if (typeof l === 'undefined') return r;\n  if (typeof r === 'undefined') return l;\n  return l + r;\n}\n\nfunction isStateless($filter, filterName) {\n  var fn = $filter(filterName);\n  return !fn.$stateful;\n}\n\nvar PURITY_ABSOLUTE = 1;\nvar PURITY_RELATIVE = 2;\n\n// Detect nodes which could depend on non-shallow state of objects\nfunction isPure(node, parentIsPure) {\n  switch (node.type) {\n    // Computed members might invoke a stateful toString()\n    case AST.MemberExpression:\n      if (node.computed) {\n        return false;\n      }\n      break;\n\n    // Unary always convert to primative\n    case AST.UnaryExpression:\n      return PURITY_ABSOLUTE;\n\n    // The binary + operator can invoke a stateful toString().\n    case AST.BinaryExpression:\n      return node.operator !== '+' ? PURITY_ABSOLUTE : false;\n\n    // Functions / filters probably read state from within objects\n    case AST.CallExpression:\n      return false;\n  }\n\n  return (undefined === parentIsPure) ? PURITY_RELATIVE : parentIsPure;\n}\n\nfunction findConstantAndWatchExpressions(ast, $filter, parentIsPure) {\n  var allConstants;\n  var argsToWatch;\n  var isStatelessFilter;\n\n  var astIsPure = ast.isPure = isPure(ast, parentIsPure);\n\n  switch (ast.type) {\n  case AST.Program:\n    allConstants = true;\n    forEach(ast.body, function(expr) {\n      findConstantAndWatchExpressions(expr.expression, $filter, astIsPure);\n      allConstants = allConstants && expr.expression.constant;\n    });\n    ast.constant = allConstants;\n    break;\n  case AST.Literal:\n    ast.constant = true;\n    ast.toWatch = [];\n    break;\n  case AST.UnaryExpression:\n    findConstantAndWatchExpressions(ast.argument, $filter, astIsPure);\n    ast.constant = ast.argument.constant;\n    ast.toWatch = ast.argument.toWatch;\n    break;\n  case AST.BinaryExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch);\n    break;\n  case AST.LogicalExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.ConditionalExpression:\n    findConstantAndWatchExpressions(ast.test, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.alternate, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.consequent, $filter, astIsPure);\n    ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.Identifier:\n    ast.constant = false;\n    ast.toWatch = [ast];\n    break;\n  case AST.MemberExpression:\n    findConstantAndWatchExpressions(ast.object, $filter, astIsPure);\n    if (ast.computed) {\n      findConstantAndWatchExpressions(ast.property, $filter, astIsPure);\n    }\n    ast.constant = ast.object.constant && (!ast.computed || ast.property.constant);\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.CallExpression:\n    isStatelessFilter = ast.filter ? isStateless($filter, ast.callee.name) : false;\n    allConstants = isStatelessFilter;\n    argsToWatch = [];\n    forEach(ast.arguments, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter, astIsPure);\n      allConstants = allConstants && expr.constant;\n      argsToWatch.push.apply(argsToWatch, expr.toWatch);\n    });\n    ast.constant = allConstants;\n    ast.toWatch = isStatelessFilter ? argsToWatch : [ast];\n    break;\n  case AST.AssignmentExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = [ast];\n    break;\n  case AST.ArrayExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.elements, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter, astIsPure);\n      allConstants = allConstants && expr.constant;\n      argsToWatch.push.apply(argsToWatch, expr.toWatch);\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ObjectExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.properties, function(property) {\n      findConstantAndWatchExpressions(property.value, $filter, astIsPure);\n      allConstants = allConstants && property.value.constant;\n      argsToWatch.push.apply(argsToWatch, property.value.toWatch);\n      if (property.computed) {\n        //`{[key]: value}` implicitly does `key.toString()` which may be non-pure\n        findConstantAndWatchExpressions(property.key, $filter, /*parentIsPure=*/false);\n        allConstants = allConstants && property.key.constant;\n        argsToWatch.push.apply(argsToWatch, property.key.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ThisExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  case AST.LocalsExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  }\n}\n\nfunction getInputs(body) {\n  if (body.length !== 1) return;\n  var lastExpression = body[0].expression;\n  var candidate = lastExpression.toWatch;\n  if (candidate.length !== 1) return candidate;\n  return candidate[0] !== lastExpression ? candidate : undefined;\n}\n\nfunction isAssignable(ast) {\n  return ast.type === AST.Identifier || ast.type === AST.MemberExpression;\n}\n\nfunction assignableAST(ast) {\n  if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) {\n    return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='};\n  }\n}\n\nfunction isLiteral(ast) {\n  return ast.body.length === 0 ||\n      ast.body.length === 1 && (\n      ast.body[0].expression.type === AST.Literal ||\n      ast.body[0].expression.type === AST.ArrayExpression ||\n      ast.body[0].expression.type === AST.ObjectExpression);\n}\n\nfunction isConstant(ast) {\n  return ast.constant;\n}\n\nfunction ASTCompiler($filter) {\n  this.$filter = $filter;\n}\n\nASTCompiler.prototype = {\n  compile: function(ast) {\n    var self = this;\n    this.state = {\n      nextId: 0,\n      filters: {},\n      fn: {vars: [], body: [], own: {}},\n      assign: {vars: [], body: [], own: {}},\n      inputs: []\n    };\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var extra = '';\n    var assignable;\n    this.stage = 'assign';\n    if ((assignable = assignableAST(ast))) {\n      this.state.computing = 'assign';\n      var result = this.nextId();\n      this.recurse(assignable, result);\n      this.return_(result);\n      extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l');\n    }\n    var toWatch = getInputs(ast.body);\n    self.stage = 'inputs';\n    forEach(toWatch, function(watch, key) {\n      var fnKey = 'fn' + key;\n      self.state[fnKey] = {vars: [], body: [], own: {}};\n      self.state.computing = fnKey;\n      var intoId = self.nextId();\n      self.recurse(watch, intoId);\n      self.return_(intoId);\n      self.state.inputs.push({name: fnKey, isPure: watch.isPure});\n      watch.watchId = key;\n    });\n    this.state.computing = 'fn';\n    this.stage = 'main';\n    this.recurse(ast);\n    var fnString =\n      // The build and minification steps remove the string \"use strict\" from the code, but this is done using a regex.\n      // This is a workaround for this until we do a better job at only removing the prefix only when we should.\n      '\"' + this.USE + ' ' + this.STRICT + '\";\\n' +\n      this.filterPrefix() +\n      'var fn=' + this.generateFunction('fn', 's,l,a,i') +\n      extra +\n      this.watchFns() +\n      'return fn;';\n\n    // eslint-disable-next-line no-new-func\n    var fn = (new Function('$filter',\n        'getStringValue',\n        'ifDefined',\n        'plus',\n        fnString))(\n          this.$filter,\n          getStringValue,\n          ifDefined,\n          plusFn);\n    this.state = this.stage = undefined;\n    return fn;\n  },\n\n  USE: 'use',\n\n  STRICT: 'strict',\n\n  watchFns: function() {\n    var result = [];\n    var inputs = this.state.inputs;\n    var self = this;\n    forEach(inputs, function(input) {\n      result.push('var ' + input.name + '=' + self.generateFunction(input.name, 's'));\n      if (input.isPure) {\n        result.push(input.name, '.isPure=' + JSON.stringify(input.isPure) + ';');\n      }\n    });\n    if (inputs.length) {\n      result.push('fn.inputs=[' + inputs.map(function(i) { return i.name; }).join(',') + '];');\n    }\n    return result.join('');\n  },\n\n  generateFunction: function(name, params) {\n    return 'function(' + params + '){' +\n        this.varsPrefix(name) +\n        this.body(name) +\n        '};';\n  },\n\n  filterPrefix: function() {\n    var parts = [];\n    var self = this;\n    forEach(this.state.filters, function(id, filter) {\n      parts.push(id + '=$filter(' + self.escape(filter) + ')');\n    });\n    if (parts.length) return 'var ' + parts.join(',') + ';';\n    return '';\n  },\n\n  varsPrefix: function(section) {\n    return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : '';\n  },\n\n  body: function(section) {\n    return this.state[section].body.join('');\n  },\n\n  recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var left, right, self = this, args, expression, computed;\n    recursionFn = recursionFn || noop;\n    if (!skipWatchIdCheck && isDefined(ast.watchId)) {\n      intoId = intoId || this.nextId();\n      this.if_('i',\n        this.lazyAssign(intoId, this.computedMember('i', ast.watchId)),\n        this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true)\n      );\n      return;\n    }\n    switch (ast.type) {\n    case AST.Program:\n      forEach(ast.body, function(expression, pos) {\n        self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; });\n        if (pos !== ast.body.length - 1) {\n          self.current().body.push(right, ';');\n        } else {\n          self.return_(right);\n        }\n      });\n      break;\n    case AST.Literal:\n      expression = this.escape(ast.value);\n      this.assign(intoId, expression);\n      recursionFn(intoId || expression);\n      break;\n    case AST.UnaryExpression:\n      this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; });\n      expression = ast.operator + '(' + this.ifDefined(right, 0) + ')';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.BinaryExpression:\n      this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; });\n      this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; });\n      if (ast.operator === '+') {\n        expression = this.plus(left, right);\n      } else if (ast.operator === '-') {\n        expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0);\n      } else {\n        expression = '(' + left + ')' + ast.operator + '(' + right + ')';\n      }\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.LogicalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.left, intoId);\n      self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.ConditionalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.test, intoId);\n      self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.Identifier:\n      intoId = intoId || this.nextId();\n      if (nameId) {\n        nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s');\n        nameId.computed = false;\n        nameId.name = ast.name;\n      }\n      self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)),\n        function() {\n          self.if_(self.stage === 'inputs' || 's', function() {\n            if (create && create !== 1) {\n              self.if_(\n                self.isNull(self.nonComputedMember('s', ast.name)),\n                self.lazyAssign(self.nonComputedMember('s', ast.name), '{}'));\n            }\n            self.assign(intoId, self.nonComputedMember('s', ast.name));\n          });\n        }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name))\n        );\n      recursionFn(intoId);\n      break;\n    case AST.MemberExpression:\n      left = nameId && (nameId.context = this.nextId()) || this.nextId();\n      intoId = intoId || this.nextId();\n      self.recurse(ast.object, left, undefined, function() {\n        self.if_(self.notNull(left), function() {\n          if (ast.computed) {\n            right = self.nextId();\n            self.recurse(ast.property, right);\n            self.getStringValue(right);\n            if (create && create !== 1) {\n              self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}'));\n            }\n            expression = self.computedMember(left, right);\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = true;\n              nameId.name = right;\n            }\n          } else {\n            if (create && create !== 1) {\n              self.if_(self.isNull(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}'));\n            }\n            expression = self.nonComputedMember(left, ast.property.name);\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = false;\n              nameId.name = ast.property.name;\n            }\n          }\n        }, function() {\n          self.assign(intoId, 'undefined');\n        });\n        recursionFn(intoId);\n      }, !!create);\n      break;\n    case AST.CallExpression:\n      intoId = intoId || this.nextId();\n      if (ast.filter) {\n        right = self.filter(ast.callee.name);\n        args = [];\n        forEach(ast.arguments, function(expr) {\n          var argument = self.nextId();\n          self.recurse(expr, argument);\n          args.push(argument);\n        });\n        expression = right + '(' + args.join(',') + ')';\n        self.assign(intoId, expression);\n        recursionFn(intoId);\n      } else {\n        right = self.nextId();\n        left = {};\n        args = [];\n        self.recurse(ast.callee, right, left, function() {\n          self.if_(self.notNull(right), function() {\n            forEach(ast.arguments, function(expr) {\n              self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) {\n                args.push(argument);\n              });\n            });\n            if (left.name) {\n              expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')';\n            } else {\n              expression = right + '(' + args.join(',') + ')';\n            }\n            self.assign(intoId, expression);\n          }, function() {\n            self.assign(intoId, 'undefined');\n          });\n          recursionFn(intoId);\n        });\n      }\n      break;\n    case AST.AssignmentExpression:\n      right = this.nextId();\n      left = {};\n      this.recurse(ast.left, undefined, left, function() {\n        self.if_(self.notNull(left.context), function() {\n          self.recurse(ast.right, right);\n          expression = self.member(left.context, left.name, left.computed) + ast.operator + right;\n          self.assign(intoId, expression);\n          recursionFn(intoId || expression);\n        });\n      }, 1);\n      break;\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) {\n          args.push(argument);\n        });\n      });\n      expression = '[' + args.join(',') + ']';\n      this.assign(intoId, expression);\n      recursionFn(intoId || expression);\n      break;\n    case AST.ObjectExpression:\n      args = [];\n      computed = false;\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          computed = true;\n        }\n      });\n      if (computed) {\n        intoId = intoId || this.nextId();\n        this.assign(intoId, '{}');\n        forEach(ast.properties, function(property) {\n          if (property.computed) {\n            left = self.nextId();\n            self.recurse(property.key, left);\n          } else {\n            left = property.key.type === AST.Identifier ?\n                       property.key.name :\n                       ('' + property.key.value);\n          }\n          right = self.nextId();\n          self.recurse(property.value, right);\n          self.assign(self.member(intoId, left, property.computed), right);\n        });\n      } else {\n        forEach(ast.properties, function(property) {\n          self.recurse(property.value, ast.constant ? undefined : self.nextId(), undefined, function(expr) {\n            args.push(self.escape(\n                property.key.type === AST.Identifier ? property.key.name :\n                  ('' + property.key.value)) +\n                ':' + expr);\n          });\n        });\n        expression = '{' + args.join(',') + '}';\n        this.assign(intoId, expression);\n      }\n      recursionFn(intoId || expression);\n      break;\n    case AST.ThisExpression:\n      this.assign(intoId, 's');\n      recursionFn(intoId || 's');\n      break;\n    case AST.LocalsExpression:\n      this.assign(intoId, 'l');\n      recursionFn(intoId || 'l');\n      break;\n    case AST.NGValueParameter:\n      this.assign(intoId, 'v');\n      recursionFn(intoId || 'v');\n      break;\n    }\n  },\n\n  getHasOwnProperty: function(element, property) {\n    var key = element + '.' + property;\n    var own = this.current().own;\n    if (!own.hasOwnProperty(key)) {\n      own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')');\n    }\n    return own[key];\n  },\n\n  assign: function(id, value) {\n    if (!id) return;\n    this.current().body.push(id, '=', value, ';');\n    return id;\n  },\n\n  filter: function(filterName) {\n    if (!this.state.filters.hasOwnProperty(filterName)) {\n      this.state.filters[filterName] = this.nextId(true);\n    }\n    return this.state.filters[filterName];\n  },\n\n  ifDefined: function(id, defaultValue) {\n    return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')';\n  },\n\n  plus: function(left, right) {\n    return 'plus(' + left + ',' + right + ')';\n  },\n\n  return_: function(id) {\n    this.current().body.push('return ', id, ';');\n  },\n\n  if_: function(test, alternate, consequent) {\n    if (test === true) {\n      alternate();\n    } else {\n      var body = this.current().body;\n      body.push('if(', test, '){');\n      alternate();\n      body.push('}');\n      if (consequent) {\n        body.push('else{');\n        consequent();\n        body.push('}');\n      }\n    }\n  },\n\n  not: function(expression) {\n    return '!(' + expression + ')';\n  },\n\n  isNull: function(expression) {\n    return expression + '==null';\n  },\n\n  notNull: function(expression) {\n    return expression + '!=null';\n  },\n\n  nonComputedMember: function(left, right) {\n    var SAFE_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]*$/;\n    var UNSAFE_CHARACTERS = /[^$_a-zA-Z0-9]/g;\n    if (SAFE_IDENTIFIER.test(right)) {\n      return left + '.' + right;\n    } else {\n      return left  + '[\"' + right.replace(UNSAFE_CHARACTERS, this.stringEscapeFn) + '\"]';\n    }\n  },\n\n  computedMember: function(left, right) {\n    return left + '[' + right + ']';\n  },\n\n  member: function(left, right, computed) {\n    if (computed) return this.computedMember(left, right);\n    return this.nonComputedMember(left, right);\n  },\n\n  getStringValue: function(item) {\n    this.assign(item, 'getStringValue(' + item + ')');\n  },\n\n  lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var self = this;\n    return function() {\n      self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck);\n    };\n  },\n\n  lazyAssign: function(id, value) {\n    var self = this;\n    return function() {\n      self.assign(id, value);\n    };\n  },\n\n  stringEscapeRegex: /[^ a-zA-Z0-9]/g,\n\n  stringEscapeFn: function(c) {\n    return '\\\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);\n  },\n\n  escape: function(value) {\n    if (isString(value)) return '\\'' + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + '\\'';\n    if (isNumber(value)) return value.toString();\n    if (value === true) return 'true';\n    if (value === false) return 'false';\n    if (value === null) return 'null';\n    if (typeof value === 'undefined') return 'undefined';\n\n    throw $parseMinErr('esc', 'IMPOSSIBLE');\n  },\n\n  nextId: function(skip, init) {\n    var id = 'v' + (this.state.nextId++);\n    if (!skip) {\n      this.current().vars.push(id + (init ? '=' + init : ''));\n    }\n    return id;\n  },\n\n  current: function() {\n    return this.state[this.state.computing];\n  }\n};\n\n\nfunction ASTInterpreter($filter) {\n  this.$filter = $filter;\n}\n\nASTInterpreter.prototype = {\n  compile: function(ast) {\n    var self = this;\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var assignable;\n    var assign;\n    if ((assignable = assignableAST(ast))) {\n      assign = this.recurse(assignable);\n    }\n    var toWatch = getInputs(ast.body);\n    var inputs;\n    if (toWatch) {\n      inputs = [];\n      forEach(toWatch, function(watch, key) {\n        var input = self.recurse(watch);\n        input.isPure = watch.isPure;\n        watch.input = input;\n        inputs.push(input);\n        watch.watchId = key;\n      });\n    }\n    var expressions = [];\n    forEach(ast.body, function(expression) {\n      expressions.push(self.recurse(expression.expression));\n    });\n    var fn = ast.body.length === 0 ? noop :\n             ast.body.length === 1 ? expressions[0] :\n             function(scope, locals) {\n               var lastValue;\n               forEach(expressions, function(exp) {\n                 lastValue = exp(scope, locals);\n               });\n               return lastValue;\n             };\n    if (assign) {\n      fn.assign = function(scope, value, locals) {\n        return assign(scope, locals, value);\n      };\n    }\n    if (inputs) {\n      fn.inputs = inputs;\n    }\n    return fn;\n  },\n\n  recurse: function(ast, context, create) {\n    var left, right, self = this, args;\n    if (ast.input) {\n      return this.inputs(ast.input, ast.watchId);\n    }\n    switch (ast.type) {\n    case AST.Literal:\n      return this.value(ast.value, context);\n    case AST.UnaryExpression:\n      right = this.recurse(ast.argument);\n      return this['unary' + ast.operator](right, context);\n    case AST.BinaryExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.LogicalExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.ConditionalExpression:\n      return this['ternary?:'](\n        this.recurse(ast.test),\n        this.recurse(ast.alternate),\n        this.recurse(ast.consequent),\n        context\n      );\n    case AST.Identifier:\n      return self.identifier(ast.name, context, create);\n    case AST.MemberExpression:\n      left = this.recurse(ast.object, false, !!create);\n      if (!ast.computed) {\n        right = ast.property.name;\n      }\n      if (ast.computed) right = this.recurse(ast.property);\n      return ast.computed ?\n        this.computedMember(left, right, context, create) :\n        this.nonComputedMember(left, right, context, create);\n    case AST.CallExpression:\n      args = [];\n      forEach(ast.arguments, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      if (ast.filter) right = this.$filter(ast.callee.name);\n      if (!ast.filter) right = this.recurse(ast.callee, true);\n      return ast.filter ?\n        function(scope, locals, assign, inputs) {\n          var values = [];\n          for (var i = 0; i < args.length; ++i) {\n            values.push(args[i](scope, locals, assign, inputs));\n          }\n          var value = right.apply(undefined, values, inputs);\n          return context ? {context: undefined, name: undefined, value: value} : value;\n        } :\n        function(scope, locals, assign, inputs) {\n          var rhs = right(scope, locals, assign, inputs);\n          var value;\n          if (rhs.value != null) {\n            var values = [];\n            for (var i = 0; i < args.length; ++i) {\n              values.push(args[i](scope, locals, assign, inputs));\n            }\n            value = rhs.value.apply(rhs.context, values);\n          }\n          return context ? {value: value} : value;\n        };\n    case AST.AssignmentExpression:\n      left = this.recurse(ast.left, true, 1);\n      right = this.recurse(ast.right);\n      return function(scope, locals, assign, inputs) {\n        var lhs = left(scope, locals, assign, inputs);\n        var rhs = right(scope, locals, assign, inputs);\n        lhs.context[lhs.name] = rhs;\n        return context ? {value: rhs} : rhs;\n      };\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = [];\n        for (var i = 0; i < args.length; ++i) {\n          value.push(args[i](scope, locals, assign, inputs));\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ObjectExpression:\n      args = [];\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          args.push({key: self.recurse(property.key),\n                     computed: true,\n                     value: self.recurse(property.value)\n          });\n        } else {\n          args.push({key: property.key.type === AST.Identifier ?\n                          property.key.name :\n                          ('' + property.key.value),\n                     computed: false,\n                     value: self.recurse(property.value)\n          });\n        }\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = {};\n        for (var i = 0; i < args.length; ++i) {\n          if (args[i].computed) {\n            value[args[i].key(scope, locals, assign, inputs)] = args[i].value(scope, locals, assign, inputs);\n          } else {\n            value[args[i].key] = args[i].value(scope, locals, assign, inputs);\n          }\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ThisExpression:\n      return function(scope) {\n        return context ? {value: scope} : scope;\n      };\n    case AST.LocalsExpression:\n      return function(scope, locals) {\n        return context ? {value: locals} : locals;\n      };\n    case AST.NGValueParameter:\n      return function(scope, locals, assign) {\n        return context ? {value: assign} : assign;\n      };\n    }\n  },\n\n  'unary+': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = +arg;\n      } else {\n        arg = 0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary-': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = -arg;\n      } else {\n        arg = -0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary!': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = !argument(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary+': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = plusFn(lhs, rhs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary-': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary*': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary/': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary%': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary===': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary&&': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary||': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'ternary?:': function(test, alternate, consequent, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  value: function(value, context) {\n    return function() { return context ? {context: undefined, name: undefined, value: value} : value; };\n  },\n  identifier: function(name, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var base = locals && (name in locals) ? locals : scope;\n      if (create && create !== 1 && base && base[name] == null) {\n        base[name] = {};\n      }\n      var value = base ? base[name] : undefined;\n      if (context) {\n        return {context: base, name: name, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  computedMember: function(left, right, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs;\n      var value;\n      if (lhs != null) {\n        rhs = right(scope, locals, assign, inputs);\n        rhs = getStringValue(rhs);\n        if (create && create !== 1) {\n          if (lhs && !(lhs[rhs])) {\n            lhs[rhs] = {};\n          }\n        }\n        value = lhs[rhs];\n      }\n      if (context) {\n        return {context: lhs, name: rhs, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  nonComputedMember: function(left, right, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      if (create && create !== 1) {\n        if (lhs && lhs[right] == null) {\n          lhs[right] = {};\n        }\n      }\n      var value = lhs != null ? lhs[right] : undefined;\n      if (context) {\n        return {context: lhs, name: right, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  inputs: function(input, watchId) {\n    return function(scope, value, locals, inputs) {\n      if (inputs) return inputs[watchId];\n      return input(scope, value, locals);\n    };\n  }\n};\n\n/**\n * @constructor\n */\nfunction Parser(lexer, $filter, options) {\n  this.ast = new AST(lexer, options);\n  this.astCompiler = options.csp ? new ASTInterpreter($filter) :\n                                   new ASTCompiler($filter);\n}\n\nParser.prototype = {\n  constructor: Parser,\n\n  parse: function(text) {\n    var ast = this.getAst(text);\n    var fn = this.astCompiler.compile(ast.ast);\n    fn.literal = isLiteral(ast.ast);\n    fn.constant = isConstant(ast.ast);\n    fn.oneTime = ast.oneTime;\n    return fn;\n  },\n\n  getAst: function(exp) {\n    var oneTime = false;\n    exp = exp.trim();\n\n    if (exp.charAt(0) === ':' && exp.charAt(1) === ':') {\n      oneTime = true;\n      exp = exp.substring(2);\n    }\n    return {\n      ast: this.ast.ast(exp),\n      oneTime: oneTime\n    };\n  }\n};\n\nfunction getValueOf(value) {\n  return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value);\n}\n\n///////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $parse\n * @kind function\n *\n * @description\n *\n * Converts AngularJS {@link guide/expression expression} into a function.\n *\n * ```js\n *   var getter = $parse('user.name');\n *   var setter = getter.assign;\n *   var context = {user:{name:'AngularJS'}};\n *   var locals = {user:{name:'local'}};\n *\n *   expect(getter(context)).toEqual('AngularJS');\n *   setter(context, 'newValue');\n *   expect(context.user.name).toEqual('newValue');\n *   expect(getter(context, locals)).toEqual('local');\n * ```\n *\n *\n * @param {string} expression String expression to compile.\n * @returns {function(context, locals)} a function which represents the compiled expression:\n *\n *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n *      are evaluated against (typically a scope object).\n *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n *      `context`.\n *\n *    The returned function also has the following properties:\n *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript\n *        literal.\n *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript\n *        constant literals.\n *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be\n *        set to a function to change its value on the given context.\n *\n */\n\n\n/**\n * @ngdoc provider\n * @name $parseProvider\n * @this\n *\n * @description\n * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}\n *  service.\n */\nfunction $ParseProvider() {\n  var cache = createMap();\n  var literals = {\n    'true': true,\n    'false': false,\n    'null': null,\n    'undefined': undefined\n  };\n  var identStart, identContinue;\n\n  /**\n   * @ngdoc method\n   * @name $parseProvider#addLiteral\n   * @description\n   *\n   * Configure $parse service to add literal values that will be present as literal at expressions.\n   *\n   * @param {string} literalName Token for the literal value. The literal name value must be a valid literal name.\n   * @param {*} literalValue Value for this literal. All literal values must be primitives or `undefined`.\n   *\n   **/\n  this.addLiteral = function(literalName, literalValue) {\n    literals[literalName] = literalValue;\n  };\n\n /**\n  * @ngdoc method\n  * @name $parseProvider#setIdentifierFns\n  *\n  * @description\n  *\n  * Allows defining the set of characters that are allowed in AngularJS expressions. The function\n  * `identifierStart` will get called to know if a given character is a valid character to be the\n  * first character for an identifier. The function `identifierContinue` will get called to know if\n  * a given character is a valid character to be a follow-up identifier character. The functions\n  * `identifierStart` and `identifierContinue` will receive as arguments the single character to be\n  * identifier and the character code point. These arguments will be `string` and `numeric`. Keep in\n  * mind that the `string` parameter can be two characters long depending on the character\n  * representation. It is expected for the function to return `true` or `false`, whether that\n  * character is allowed or not.\n  *\n  * Since this function will be called extensively, keep the implementation of these functions fast,\n  * as the performance of these functions have a direct impact on the expressions parsing speed.\n  *\n  * @param {function=} identifierStart The function that will decide whether the given character is\n  *   a valid identifier start character.\n  * @param {function=} identifierContinue The function that will decide whether the given character is\n  *   a valid identifier continue character.\n  */\n  this.setIdentifierFns = function(identifierStart, identifierContinue) {\n    identStart = identifierStart;\n    identContinue = identifierContinue;\n    return this;\n  };\n\n  this.$get = ['$filter', function($filter) {\n    var noUnsafeEval = csp().noUnsafeEval;\n    var $parseOptions = {\n          csp: noUnsafeEval,\n          literals: copy(literals),\n          isIdentifierStart: isFunction(identStart) && identStart,\n          isIdentifierContinue: isFunction(identContinue) && identContinue\n        };\n    $parse.$$getAst = $$getAst;\n    return $parse;\n\n    function $parse(exp, interceptorFn) {\n      var parsedExpression, cacheKey;\n\n      switch (typeof exp) {\n        case 'string':\n          exp = exp.trim();\n          cacheKey = exp;\n\n          parsedExpression = cache[cacheKey];\n\n          if (!parsedExpression) {\n            var lexer = new Lexer($parseOptions);\n            var parser = new Parser(lexer, $filter, $parseOptions);\n            parsedExpression = parser.parse(exp);\n            if (parsedExpression.constant) {\n              parsedExpression.$$watchDelegate = constantWatchDelegate;\n            } else if (parsedExpression.oneTime) {\n              parsedExpression.$$watchDelegate = parsedExpression.literal ?\n                  oneTimeLiteralWatchDelegate : oneTimeWatchDelegate;\n            } else if (parsedExpression.inputs) {\n              parsedExpression.$$watchDelegate = inputsWatchDelegate;\n            }\n            cache[cacheKey] = parsedExpression;\n          }\n          return addInterceptor(parsedExpression, interceptorFn);\n\n        case 'function':\n          return addInterceptor(exp, interceptorFn);\n\n        default:\n          return addInterceptor(noop, interceptorFn);\n      }\n    }\n\n    function $$getAst(exp) {\n      var lexer = new Lexer($parseOptions);\n      var parser = new Parser(lexer, $filter, $parseOptions);\n      return parser.getAst(exp).ast;\n    }\n\n    function expressionInputDirtyCheck(newValue, oldValueOfValue, compareObjectIdentity) {\n\n      if (newValue == null || oldValueOfValue == null) { // null/undefined\n        return newValue === oldValueOfValue;\n      }\n\n      if (typeof newValue === 'object') {\n\n        // attempt to convert the value to a primitive type\n        // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can\n        //             be cheaply dirty-checked\n        newValue = getValueOf(newValue);\n\n        if (typeof newValue === 'object' && !compareObjectIdentity) {\n          // objects/arrays are not supported - deep-watching them would be too expensive\n          return false;\n        }\n\n        // fall-through to the primitive equality check\n      }\n\n      //Primitive or NaN\n      // eslint-disable-next-line no-self-compare\n      return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue);\n    }\n\n    function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var inputExpressions = parsedExpression.inputs;\n      var lastResult;\n\n      if (inputExpressions.length === 1) {\n        var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        inputExpressions = inputExpressions[0];\n        return scope.$watch(function expressionInputWatch(scope) {\n          var newInputValue = inputExpressions(scope);\n          if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf, inputExpressions.isPure)) {\n            lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]);\n            oldInputValueOf = newInputValue && getValueOf(newInputValue);\n          }\n          return lastResult;\n        }, listener, objectEquality, prettyPrintExpression);\n      }\n\n      var oldInputValueOfValues = [];\n      var oldInputValues = [];\n      for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n        oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        oldInputValues[i] = null;\n      }\n\n      return scope.$watch(function expressionInputsWatch(scope) {\n        var changed = false;\n\n        for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n          var newInputValue = inputExpressions[i](scope);\n          if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i], inputExpressions[i].isPure))) {\n            oldInputValues[i] = newInputValue;\n            oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue);\n          }\n        }\n\n        if (changed) {\n          lastResult = parsedExpression(scope, undefined, undefined, oldInputValues);\n        }\n\n        return lastResult;\n      }, listener, objectEquality, prettyPrintExpression);\n    }\n\n    function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var unwatch, lastValue;\n      if (parsedExpression.inputs) {\n        unwatch = inputsWatchDelegate(scope, oneTimeListener, objectEquality, parsedExpression, prettyPrintExpression);\n      } else {\n        unwatch = scope.$watch(oneTimeWatch, oneTimeListener, objectEquality);\n      }\n      return unwatch;\n\n      function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }\n      function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener(value, old, scope);\n        }\n        if (isDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isDefined(lastValue)) {\n              unwatch();\n            }\n          });\n        }\n      }\n    }\n\n    function oneTimeLiteralWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch, lastValue;\n      unwatch = scope.$watch(function oneTimeWatch(scope) {\n        return parsedExpression(scope);\n      }, function oneTimeListener(value, old, scope) {\n        lastValue = value;\n        if (isFunction(listener)) {\n          listener(value, old, scope);\n        }\n        if (isAllDefined(value)) {\n          scope.$$postDigest(function() {\n            if (isAllDefined(lastValue)) unwatch();\n          });\n        }\n      }, objectEquality);\n\n      return unwatch;\n\n      function isAllDefined(value) {\n        var allDefined = true;\n        forEach(value, function(val) {\n          if (!isDefined(val)) allDefined = false;\n        });\n        return allDefined;\n      }\n    }\n\n    function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch = scope.$watch(function constantWatch(scope) {\n        unwatch();\n        return parsedExpression(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    function addInterceptor(parsedExpression, interceptorFn) {\n      if (!interceptorFn) return parsedExpression;\n      var watchDelegate = parsedExpression.$$watchDelegate;\n      var useInputs = false;\n\n      var regularWatch =\n          watchDelegate !== oneTimeLiteralWatchDelegate &&\n          watchDelegate !== oneTimeWatchDelegate;\n\n      var fn = regularWatch ? function regularInterceptedExpression(scope, locals, assign, inputs) {\n        var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs);\n        return interceptorFn(value, scope, locals);\n      } : function oneTimeInterceptedExpression(scope, locals, assign, inputs) {\n        var value = parsedExpression(scope, locals, assign, inputs);\n        var result = interceptorFn(value, scope, locals);\n        // we only return the interceptor's result if the\n        // initial value is defined (for bind-once)\n        return isDefined(value) ? result : value;\n      };\n\n      // Propagate $$watchDelegates other then inputsWatchDelegate\n      useInputs = !parsedExpression.inputs;\n      if (watchDelegate && watchDelegate !== inputsWatchDelegate) {\n        fn.$$watchDelegate = watchDelegate;\n        fn.inputs = parsedExpression.inputs;\n      } else if (!interceptorFn.$stateful) {\n        // Treat interceptor like filters - assume non-stateful by default and use the inputsWatchDelegate\n        fn.$$watchDelegate = inputsWatchDelegate;\n        fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression];\n      }\n\n      if (fn.inputs) {\n        fn.inputs = fn.inputs.map(function(e) {\n              // Remove the isPure flag of inputs when it is not absolute because they are now wrapped in a\n              // potentially non-pure interceptor function.\n              if (e.isPure === PURITY_RELATIVE) {\n                return function depurifier(s) { return e(s); };\n              }\n              return e;\n            });\n      }\n\n      return fn;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $q\n * @requires $rootScope\n *\n * @description\n * A service that helps you run functions asynchronously, and use their return values (or exceptions)\n * when they are done processing.\n *\n * This is a [Promises/A+](https://promisesaplus.com/)-compliant implementation of promises/deferred\n * objects inspired by [Kris Kowal's Q](https://github.com/kriskowal/q).\n *\n * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred\n * implementations, and the other which resembles ES6 (ES2015) promises to some degree.\n *\n * ## $q constructor\n *\n * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver`\n * function as the first argument. This is similar to the native Promise implementation from ES6,\n * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).\n *\n * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are\n * available yet.\n *\n * It can be used like so:\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     // perform some asynchronous operation, resolve or reject the promise when appropriate.\n *     return $q(function(resolve, reject) {\n *       setTimeout(function() {\n *         if (okToGreet(name)) {\n *           resolve('Hello, ' + name + '!');\n *         } else {\n *           reject('Greeting ' + name + ' is not allowed.');\n *         }\n *       }, 1000);\n *     });\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   });\n * ```\n *\n * Note: progress/notify callbacks are not currently supported via the ES6-style interface.\n *\n * Note: unlike ES6 behavior, an exception thrown in the constructor function will NOT implicitly reject the promise.\n *\n * However, the more traditional CommonJS-style usage is still available, and documented below.\n *\n * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an\n * interface for interacting with an object that represents the result of an action that is\n * performed asynchronously, and may or may not be finished at any given point in time.\n *\n * From the perspective of dealing with error handling, deferred and promise APIs are to\n * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     var deferred = $q.defer();\n *\n *     setTimeout(function() {\n *       deferred.notify('About to greet ' + name + '.');\n *\n *       if (okToGreet(name)) {\n *         deferred.resolve('Hello, ' + name + '!');\n *       } else {\n *         deferred.reject('Greeting ' + name + ' is not allowed.');\n *       }\n *     }, 1000);\n *\n *     return deferred.promise;\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   }, function(update) {\n *     alert('Got notification: ' + update);\n *   });\n * ```\n *\n * At first it might not be obvious why this extra complexity is worth the trouble. The payoff\n * comes in the way of guarantees that promise and deferred APIs make, see\n * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.\n *\n * Additionally the promise api allows for composition that is very hard to do with the\n * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.\n * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the\n * section on serial or parallel joining of promises.\n *\n * ## The Deferred API\n *\n * A new instance of deferred is constructed by calling `$q.defer()`.\n *\n * The purpose of the deferred object is to expose the associated Promise instance as well as APIs\n * that can be used for signaling the successful or unsuccessful completion, as well as the status\n * of the task.\n *\n * **Methods**\n *\n * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection\n *   constructed via `$q.reject`, the promise will be rejected instead.\n * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to\n *   resolving it with a rejection constructed via `$q.reject`.\n * - `notify(value)` - provides updates on the status of the promise's execution. This may be called\n *   multiple times before the promise is either resolved or rejected.\n *\n * **Properties**\n *\n * - promise – `{Promise}` – promise object associated with this deferred.\n *\n *\n * ## The Promise API\n *\n * A new promise instance is created when a deferred instance is created and can be retrieved by\n * calling `deferred.promise`.\n *\n * The purpose of the promise object is to allow for interested parties to get access to the result\n * of the deferred task when it completes.\n *\n * **Methods**\n *\n * - `then(successCallback, [errorCallback], [notifyCallback])` – regardless of when the promise was or\n *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously\n *   as soon as the result is available. The callbacks are called with a single argument: the result\n *   or rejection reason. Additionally, the notify callback may be called zero or more times to\n *   provide a progress indication, before the promise is resolved or rejected.\n *\n *   This method *returns a new promise* which is resolved or rejected via the return value of the\n *   `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved\n *   with the value which is resolved in that promise using\n *   [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)).\n *   It also notifies via the return value of the `notifyCallback` method. The promise cannot be\n *   resolved or rejected from the notifyCallback method. The errorCallback and notifyCallback\n *   arguments are optional.\n *\n * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`\n *\n * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise,\n *   but to do so without modifying the final value. This is useful to release resources or do some\n *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full\n *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for\n *   more information.\n *\n * ## Chaining promises\n *\n * Because calling the `then` method of a promise returns a new derived promise, it is easily\n * possible to create a chain of promises:\n *\n * ```js\n *   promiseB = promiseA.then(function(result) {\n *     return result + 1;\n *   });\n *\n *   // promiseB will be resolved immediately after promiseA is resolved and its value\n *   // will be the result of promiseA incremented by 1\n * ```\n *\n * It is possible to create chains of any length and since a promise can be resolved with another\n * promise (which will defer its resolution further), it is possible to pause/defer resolution of\n * the promises at any point in the chain. This makes it possible to implement powerful APIs like\n * $http's response interceptors.\n *\n *\n * ## Differences between Kris Kowal's Q and $q\n *\n *  There are two main differences:\n *\n * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation\n *   mechanism in AngularJS, which means faster propagation of resolution or rejection into your\n *   models and avoiding unnecessary browser repaints, which would result in flickering UI.\n * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains\n *   all the important functionality needed for common async tasks.\n *\n * ## Testing\n *\n *  ```js\n *    it('should simulate promise', inject(function($q, $rootScope) {\n *      var deferred = $q.defer();\n *      var promise = deferred.promise;\n *      var resolvedValue;\n *\n *      promise.then(function(value) { resolvedValue = value; });\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Simulate resolving of promise\n *      deferred.resolve(123);\n *      // Note that the 'then' function does not get called synchronously.\n *      // This is because we want the promise API to always be async, whether or not\n *      // it got called synchronously or asynchronously.\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Propagate promise resolution to 'then' functions using $apply().\n *      $rootScope.$apply();\n *      expect(resolvedValue).toEqual(123);\n *    }));\n *  ```\n *\n * @param {function(function, function)} resolver Function which is responsible for resolving or\n *   rejecting the newly created promise. The first parameter is a function which resolves the\n *   promise, the second parameter is a function which rejects the promise.\n *\n * @returns {Promise} The newly created promise.\n */\n/**\n * @ngdoc provider\n * @name $qProvider\n * @this\n *\n * @description\n */\nfunction $QProvider() {\n  var errorOnUnhandledRejections = true;\n  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $rootScope.$evalAsync(callback);\n    }, $exceptionHandler, errorOnUnhandledRejections);\n  }];\n\n  /**\n   * @ngdoc method\n   * @name $qProvider#errorOnUnhandledRejections\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides whether to generate an error when a rejected promise is not handled.\n   * This feature is enabled by default.\n   *\n   * @param {boolean=} value Whether to generate an error when a rejected promise is not handled.\n   * @returns {boolean|ng.$qProvider} Current value when called without a new value or self for\n   *    chaining otherwise.\n   */\n  this.errorOnUnhandledRejections = function(value) {\n    if (isDefined(value)) {\n      errorOnUnhandledRejections = value;\n      return this;\n    } else {\n      return errorOnUnhandledRejections;\n    }\n  };\n}\n\n/** @this */\nfunction $$QProvider() {\n  var errorOnUnhandledRejections = true;\n  this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $browser.defer(callback);\n    }, $exceptionHandler, errorOnUnhandledRejections);\n  }];\n\n  this.errorOnUnhandledRejections = function(value) {\n    if (isDefined(value)) {\n      errorOnUnhandledRejections = value;\n      return this;\n    } else {\n      return errorOnUnhandledRejections;\n    }\n  };\n}\n\n/**\n * Constructs a promise manager.\n *\n * @param {function(function)} nextTick Function for executing functions in the next turn.\n * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for\n *     debugging purposes.\n * @param {boolean=} errorOnUnhandledRejections Whether an error should be generated on unhandled\n *     promises rejections.\n * @returns {object} Promise manager.\n */\nfunction qFactory(nextTick, exceptionHandler, errorOnUnhandledRejections) {\n  var $qMinErr = minErr('$q', TypeError);\n  var queueSize = 0;\n  var checkQueue = [];\n\n  /**\n   * @ngdoc method\n   * @name ng.$q#defer\n   * @kind function\n   *\n   * @description\n   * Creates a `Deferred` object which represents a task which will finish in the future.\n   *\n   * @returns {Deferred} Returns a new instance of deferred.\n   */\n  function defer() {\n    return new Deferred();\n  }\n\n  function Deferred() {\n    var promise = this.promise = new Promise();\n    //Non prototype methods necessary to support unbound execution :/\n    this.resolve = function(val) { resolvePromise(promise, val); };\n    this.reject = function(reason) { rejectPromise(promise, reason); };\n    this.notify = function(progress) { notifyPromise(promise, progress); };\n  }\n\n\n  function Promise() {\n    this.$$state = { status: 0 };\n  }\n\n  extend(Promise.prototype, {\n    then: function(onFulfilled, onRejected, progressBack) {\n      if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) {\n        return this;\n      }\n      var result = new Promise();\n\n      this.$$state.pending = this.$$state.pending || [];\n      this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]);\n      if (this.$$state.status > 0) scheduleProcessQueue(this.$$state);\n\n      return result;\n    },\n\n    'catch': function(callback) {\n      return this.then(null, callback);\n    },\n\n    'finally': function(callback, progressBack) {\n      return this.then(function(value) {\n        return handleCallback(value, resolve, callback);\n      }, function(error) {\n        return handleCallback(error, reject, callback);\n      }, progressBack);\n    }\n  });\n\n  function processQueue(state) {\n    var fn, promise, pending;\n\n    pending = state.pending;\n    state.processScheduled = false;\n    state.pending = undefined;\n    try {\n      for (var i = 0, ii = pending.length; i < ii; ++i) {\n        markQStateExceptionHandled(state);\n        promise = pending[i][0];\n        fn = pending[i][state.status];\n        try {\n          if (isFunction(fn)) {\n            resolvePromise(promise, fn(state.value));\n          } else if (state.status === 1) {\n            resolvePromise(promise, state.value);\n          } else {\n            rejectPromise(promise, state.value);\n          }\n        } catch (e) {\n          rejectPromise(promise, e);\n          // This error is explicitly marked for being passed to the $exceptionHandler\n          if (e && e.$$passToExceptionHandler === true) {\n            exceptionHandler(e);\n          }\n        }\n      }\n    } finally {\n      --queueSize;\n      if (errorOnUnhandledRejections && queueSize === 0) {\n        nextTick(processChecks);\n      }\n    }\n  }\n\n  function processChecks() {\n    // eslint-disable-next-line no-unmodified-loop-condition\n    while (!queueSize && checkQueue.length) {\n      var toCheck = checkQueue.shift();\n      if (!isStateExceptionHandled(toCheck)) {\n        markQStateExceptionHandled(toCheck);\n        var errorMessage = 'Possibly unhandled rejection: ' + toDebugString(toCheck.value);\n        if (isError(toCheck.value)) {\n          exceptionHandler(toCheck.value, errorMessage);\n        } else {\n          exceptionHandler(errorMessage);\n        }\n      }\n    }\n  }\n\n  function scheduleProcessQueue(state) {\n    if (errorOnUnhandledRejections && !state.pending && state.status === 2 && !isStateExceptionHandled(state)) {\n      if (queueSize === 0 && checkQueue.length === 0) {\n        nextTick(processChecks);\n      }\n      checkQueue.push(state);\n    }\n    if (state.processScheduled || !state.pending) return;\n    state.processScheduled = true;\n    ++queueSize;\n    nextTick(function() { processQueue(state); });\n  }\n\n  function resolvePromise(promise, val) {\n    if (promise.$$state.status) return;\n    if (val === promise) {\n      $$reject(promise, $qMinErr(\n        'qcycle',\n        'Expected promise to be resolved with value other than itself \\'{0}\\'',\n        val));\n    } else {\n      $$resolve(promise, val);\n    }\n\n  }\n\n  function $$resolve(promise, val) {\n    var then;\n    var done = false;\n    try {\n      if (isObject(val) || isFunction(val)) then = val.then;\n      if (isFunction(then)) {\n        promise.$$state.status = -1;\n        then.call(val, doResolve, doReject, doNotify);\n      } else {\n        promise.$$state.value = val;\n        promise.$$state.status = 1;\n        scheduleProcessQueue(promise.$$state);\n      }\n    } catch (e) {\n      doReject(e);\n    }\n\n    function doResolve(val) {\n      if (done) return;\n      done = true;\n      $$resolve(promise, val);\n    }\n    function doReject(val) {\n      if (done) return;\n      done = true;\n      $$reject(promise, val);\n    }\n    function doNotify(progress) {\n      notifyPromise(promise, progress);\n    }\n  }\n\n  function rejectPromise(promise, reason) {\n    if (promise.$$state.status) return;\n    $$reject(promise, reason);\n  }\n\n  function $$reject(promise, reason) {\n    promise.$$state.value = reason;\n    promise.$$state.status = 2;\n    scheduleProcessQueue(promise.$$state);\n  }\n\n  function notifyPromise(promise, progress) {\n    var callbacks = promise.$$state.pending;\n\n    if ((promise.$$state.status <= 0) && callbacks && callbacks.length) {\n      nextTick(function() {\n        var callback, result;\n        for (var i = 0, ii = callbacks.length; i < ii; i++) {\n          result = callbacks[i][0];\n          callback = callbacks[i][3];\n          try {\n            notifyPromise(result, isFunction(callback) ? callback(progress) : progress);\n          } catch (e) {\n            exceptionHandler(e);\n          }\n        }\n      });\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#reject\n   * @kind function\n   *\n   * @description\n   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be\n   * used to forward rejection in a chain of promises. If you are dealing with the last promise in\n   * a promise chain, you don't need to worry about it.\n   *\n   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of\n   * `reject` as the `throw` keyword in JavaScript. This also means that if you \"catch\" an error via\n   * a promise error callback and you want to forward the error to the promise derived from the\n   * current promise, you have to \"rethrow\" the error by returning a rejection constructed via\n   * `reject`.\n   *\n   * ```js\n   *   promiseB = promiseA.then(function(result) {\n   *     // success: do something and resolve promiseB\n   *     //          with the old or a new result\n   *     return result;\n   *   }, function(reason) {\n   *     // error: handle the error if possible and\n   *     //        resolve promiseB with newPromiseOrValue,\n   *     //        otherwise forward the rejection to promiseB\n   *     if (canHandle(reason)) {\n   *      // handle the error and recover\n   *      return newPromiseOrValue;\n   *     }\n   *     return $q.reject(reason);\n   *   });\n   * ```\n   *\n   * @param {*} reason Constant, message, exception or an object representing the rejection reason.\n   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.\n   */\n  function reject(reason) {\n    var result = new Promise();\n    rejectPromise(result, reason);\n    return result;\n  }\n\n  function handleCallback(value, resolver, callback) {\n    var callbackOutput = null;\n    try {\n      if (isFunction(callback)) callbackOutput = callback();\n    } catch (e) {\n      return reject(e);\n    }\n    if (isPromiseLike(callbackOutput)) {\n      return callbackOutput.then(function() {\n        return resolver(value);\n      }, reject);\n    } else {\n      return resolver(value);\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#when\n   * @kind function\n   *\n   * @description\n   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.\n   * This is useful when you are dealing with an object that might or might not be a promise, or if\n   * the promise comes from a source that can't be trusted.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n\n\n  function when(value, callback, errback, progressBack) {\n    var result = new Promise();\n    resolvePromise(result, value);\n    return result.then(callback, errback, progressBack);\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#resolve\n   * @kind function\n   *\n   * @description\n   * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n  var resolve = when;\n\n  /**\n   * @ngdoc method\n   * @name $q#all\n   * @kind function\n   *\n   * @description\n   * Combines multiple promises into a single promise that is resolved when all of the input\n   * promises are resolved.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,\n   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.\n   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected\n   *   with the same rejection value.\n   */\n\n  function all(promises) {\n    var result = new Promise(),\n        counter = 0,\n        results = isArray(promises) ? [] : {};\n\n    forEach(promises, function(promise, key) {\n      counter++;\n      when(promise).then(function(value) {\n        results[key] = value;\n        if (!(--counter)) resolvePromise(result, results);\n      }, function(reason) {\n        rejectPromise(result, reason);\n      });\n    });\n\n    if (counter === 0) {\n      resolvePromise(result, results);\n    }\n\n    return result;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#race\n   * @kind function\n   *\n   * @description\n   * Returns a promise that resolves or rejects as soon as one of those promises\n   * resolves or rejects, with the value or reason from that promise.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} a promise that resolves or rejects as soon as one of the `promises`\n   * resolves or rejects, with the value or reason from that promise.\n   */\n\n  function race(promises) {\n    var deferred = defer();\n\n    forEach(promises, function(promise) {\n      when(promise).then(deferred.resolve, deferred.reject);\n    });\n\n    return deferred.promise;\n  }\n\n  function $Q(resolver) {\n    if (!isFunction(resolver)) {\n      throw $qMinErr('norslvr', 'Expected resolverFn, got \\'{0}\\'', resolver);\n    }\n\n    var promise = new Promise();\n\n    function resolveFn(value) {\n      resolvePromise(promise, value);\n    }\n\n    function rejectFn(reason) {\n      rejectPromise(promise, reason);\n    }\n\n    resolver(resolveFn, rejectFn);\n\n    return promise;\n  }\n\n  // Let's make the instanceof operator work for promises, so that\n  // `new $q(fn) instanceof $q` would evaluate to true.\n  $Q.prototype = Promise.prototype;\n\n  $Q.defer = defer;\n  $Q.reject = reject;\n  $Q.when = when;\n  $Q.resolve = resolve;\n  $Q.all = all;\n  $Q.race = race;\n\n  return $Q;\n}\n\nfunction isStateExceptionHandled(state) {\n  return !!state.pur;\n}\nfunction markQStateExceptionHandled(state) {\n  state.pur = true;\n}\nfunction markQExceptionHandled(q) {\n  markQStateExceptionHandled(q.$$state);\n}\n\n/** @this */\nfunction $$RAFProvider() { //rAF\n  this.$get = ['$window', '$timeout', function($window, $timeout) {\n    var requestAnimationFrame = $window.requestAnimationFrame ||\n                                $window.webkitRequestAnimationFrame;\n\n    var cancelAnimationFrame = $window.cancelAnimationFrame ||\n                               $window.webkitCancelAnimationFrame ||\n                               $window.webkitCancelRequestAnimationFrame;\n\n    var rafSupported = !!requestAnimationFrame;\n    var raf = rafSupported\n      ? function(fn) {\n          var id = requestAnimationFrame(fn);\n          return function() {\n            cancelAnimationFrame(id);\n          };\n        }\n      : function(fn) {\n          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666\n          return function() {\n            $timeout.cancel(timer);\n          };\n        };\n\n    raf.supported = rafSupported;\n\n    return raf;\n  }];\n}\n\n/**\n * DESIGN NOTES\n *\n * The design decisions behind the scope are heavily favored for speed and memory consumption.\n *\n * The typical use of scope is to watch the expressions, which most of the time return the same\n * value as last time so we optimize the operation.\n *\n * Closures construction is expensive in terms of speed as well as memory:\n *   - No closures, instead use prototypical inheritance for API\n *   - Internal state needs to be stored on scope directly, which means that private state is\n *     exposed as $$____ properties\n *\n * Loop operations are optimized by using while(count--) { ... }\n *   - This means that in order to keep the same order of execution as addition we have to add\n *     items to the array at the beginning (unshift) instead of at the end (push)\n *\n * Child scopes are created and removed often\n *   - Using an array would be slow since inserts in the middle are expensive; so we use linked lists\n *\n * There are fewer watches than observers. This is why you don't want the observer to be implemented\n * in the same way as watch. Watch requires return of the initialization function which is expensive\n * to construct.\n */\n\n\n/**\n * @ngdoc provider\n * @name $rootScopeProvider\n * @description\n *\n * Provider for the $rootScope service.\n */\n\n/**\n * @ngdoc method\n * @name $rootScopeProvider#digestTtl\n * @description\n *\n * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and\n * assuming that the model is unstable.\n *\n * The current default is 10 iterations.\n *\n * In complex applications it's possible that the dependencies between `$watch`s will result in\n * several digest iterations. However if an application needs more than the default 10 digest\n * iterations for its model to stabilize then you should investigate what is causing the model to\n * continuously change during the digest.\n *\n * Increasing the TTL could have performance implications, so you should not change it without\n * proper justification.\n *\n * @param {number} limit The number of digest iterations.\n */\n\n\n/**\n * @ngdoc service\n * @name $rootScope\n * @this\n *\n * @description\n *\n * Every application has a single root {@link ng.$rootScope.Scope scope}.\n * All other scopes are descendant scopes of the root scope. Scopes provide separation\n * between the model and the view, via a mechanism for watching the model for changes.\n * They also provide event emission/broadcast and subscription facility. See the\n * {@link guide/scope developer guide on scopes}.\n */\nfunction $RootScopeProvider() {\n  var TTL = 10;\n  var $rootScopeMinErr = minErr('$rootScope');\n  var lastDirtyWatch = null;\n  var applyAsyncId = null;\n\n  this.digestTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n    }\n    return TTL;\n  };\n\n  function createChildScopeClass(parent) {\n    function ChildScope() {\n      this.$$watchers = this.$$nextSibling =\n          this.$$childHead = this.$$childTail = null;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$id = nextUid();\n      this.$$ChildScope = null;\n      this.$$suspended = false;\n    }\n    ChildScope.prototype = parent;\n    return ChildScope;\n  }\n\n  this.$get = ['$exceptionHandler', '$parse', '$browser',\n      function($exceptionHandler, $parse, $browser) {\n\n    function destroyChildScope($event) {\n        $event.currentScope.$$destroyed = true;\n    }\n\n    function cleanUpScope($scope) {\n\n      // Support: IE 9 only\n      if (msie === 9) {\n        // There is a memory leak in IE9 if all child scopes are not disconnected\n        // completely when a scope is destroyed. So this code will recurse up through\n        // all this scopes children\n        //\n        // See issue https://github.com/angular/angular.js/issues/10706\n        if ($scope.$$childHead) {\n          cleanUpScope($scope.$$childHead);\n        }\n        if ($scope.$$nextSibling) {\n          cleanUpScope($scope.$$nextSibling);\n        }\n      }\n\n      // The code below works around IE9 and V8's memory leaks\n      //\n      // See:\n      // - https://code.google.com/p/v8/issues/detail?id=2073#c26\n      // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909\n      // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451\n\n      $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead =\n          $scope.$$childTail = $scope.$root = $scope.$$watchers = null;\n    }\n\n    /**\n     * @ngdoc type\n     * @name $rootScope.Scope\n     *\n     * @description\n     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the\n     * {@link auto.$injector $injector}. Child scopes are created using the\n     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when\n     * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for\n     * an in-depth introduction and usage examples.\n     *\n     *\n     * ## Inheritance\n     * A scope can inherit from a parent scope, as in this example:\n     * ```js\n         var parent = $rootScope;\n         var child = parent.$new();\n\n         parent.salutation = \"Hello\";\n         expect(child.salutation).toEqual('Hello');\n\n         child.salutation = \"Welcome\";\n         expect(child.salutation).toEqual('Welcome');\n         expect(parent.salutation).toEqual('Hello');\n     * ```\n     *\n     * When interacting with `Scope` in tests, additional helper methods are available on the\n     * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional\n     * details.\n     *\n     *\n     * @param {Object.<string, function()>=} providers Map of service factory which need to be\n     *                                       provided for the current scope. Defaults to {@link ng}.\n     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should\n     *                              append/override services provided by `providers`. This is handy\n     *                              when unit-testing and having the need to override a default\n     *                              service.\n     * @returns {Object} Newly created scope.\n     *\n     */\n    function Scope() {\n      this.$id = nextUid();\n      this.$$phase = this.$parent = this.$$watchers =\n                     this.$$nextSibling = this.$$prevSibling =\n                     this.$$childHead = this.$$childTail = null;\n      this.$root = this;\n      this.$$destroyed = false;\n      this.$$suspended = false;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$$isolateBindings = null;\n    }\n\n    /**\n     * @ngdoc property\n     * @name $rootScope.Scope#$id\n     *\n     * @description\n     * Unique scope ID (monotonically increasing) useful for debugging.\n     */\n\n     /**\n      * @ngdoc property\n      * @name $rootScope.Scope#$parent\n      *\n      * @description\n      * Reference to the parent scope.\n      */\n\n      /**\n       * @ngdoc property\n       * @name $rootScope.Scope#$root\n       *\n       * @description\n       * Reference to the root scope.\n       */\n\n    Scope.prototype = {\n      constructor: Scope,\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$new\n       * @kind function\n       *\n       * @description\n       * Creates a new child {@link ng.$rootScope.Scope scope}.\n       *\n       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.\n       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.\n       *\n       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is\n       * desired for the scope and its child scopes to be permanently detached from the parent and\n       * thus stop participating in model change detection and listener notification by invoking.\n       *\n       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the\n       *         parent scope. The scope is isolated, as it can not see parent scope properties.\n       *         When creating widgets, it is useful for the widget to not accidentally read parent\n       *         state.\n       *\n       * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent`\n       *                              of the newly created scope. Defaults to `this` scope if not provided.\n       *                              This is used when creating a transclude scope to correctly place it\n       *                              in the scope hierarchy while maintaining the correct prototypical\n       *                              inheritance.\n       *\n       * @returns {Object} The newly created child scope.\n       *\n       */\n      $new: function(isolate, parent) {\n        var child;\n\n        parent = parent || this;\n\n        if (isolate) {\n          child = new Scope();\n          child.$root = this.$root;\n        } else {\n          // Only create a child scope class if somebody asks for one,\n          // but cache it to allow the VM to optimize lookups.\n          if (!this.$$ChildScope) {\n            this.$$ChildScope = createChildScopeClass(this);\n          }\n          child = new this.$$ChildScope();\n        }\n        child.$parent = parent;\n        child.$$prevSibling = parent.$$childTail;\n        if (parent.$$childHead) {\n          parent.$$childTail.$$nextSibling = child;\n          parent.$$childTail = child;\n        } else {\n          parent.$$childHead = parent.$$childTail = child;\n        }\n\n        // When the new scope is not isolated or we inherit from `this`, and\n        // the parent scope is destroyed, the property `$$destroyed` is inherited\n        // prototypically. In all other cases, this property needs to be set\n        // when the parent scope is destroyed.\n        // The listener needs to be added after the parent is set\n        if (isolate || parent !== this) child.$on('$destroy', destroyChildScope);\n\n        return child;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watch\n       * @kind function\n       *\n       * @description\n       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.\n       *\n       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest\n       *   $digest()} and should return the value that will be watched. (`watchExpression` should not change\n       *   its value when executed multiple times with the same input because it may be executed multiple\n       *   times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be\n       *   [idempotent](http://en.wikipedia.org/wiki/Idempotence).)\n       * - The `listener` is called only when the value from the current `watchExpression` and the\n       *   previous call to `watchExpression` are not equal (with the exception of the initial run,\n       *   see below). Inequality is determined according to reference inequality,\n       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)\n       *    via the `!==` Javascript operator, unless `objectEquality == true`\n       *   (see next point)\n       * - When `objectEquality == true`, inequality of the `watchExpression` is determined\n       *   according to the {@link angular.equals} function. To save the value of the object for\n       *   later comparison, the {@link angular.copy} function is used. This therefore means that\n       *   watching complex objects will have adverse memory and performance implications.\n       * - This should not be used to watch for changes in objects that are\n       *   or contain [File](https://developer.mozilla.org/docs/Web/API/File) objects due to limitations with {@link angular.copy `angular.copy`}.\n       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.\n       *   This is achieved by rerunning the watchers until no changes are detected. The rerun\n       *   iteration limit is 10 to prevent an infinite loop deadlock.\n       *\n       *\n       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,\n       * you can register a `watchExpression` function with no `listener`. (Be prepared for\n       * multiple calls to your `watchExpression` because it will execute multiple times in a\n       * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.)\n       *\n       * After a watcher is registered with the scope, the `listener` fn is called asynchronously\n       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the\n       * watcher. In rare cases, this is undesirable because the listener is called when the result\n       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you\n       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the\n       * listener was called due to initialization.\n       *\n       *\n       *\n       * @example\n       * ```js\n           // let's assume that scope was dependency injected as the $rootScope\n           var scope = $rootScope;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n\n\n\n           // Using a function as a watchExpression\n           var food;\n           scope.foodCounter = 0;\n           expect(scope.foodCounter).toEqual(0);\n           scope.$watch(\n             // This function returns the value being watched. It is called for each turn of the $digest loop\n             function() { return food; },\n             // This is the change listener, called when the value returned from the above function changes\n             function(newValue, oldValue) {\n               if ( newValue !== oldValue ) {\n                 // Only increment the counter if the value changed\n                 scope.foodCounter = scope.foodCounter + 1;\n               }\n             }\n           );\n           // No digest has been run so the counter will be zero\n           expect(scope.foodCounter).toEqual(0);\n\n           // Run the digest but since food has not changed count will still be zero\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(0);\n\n           // Update food and run digest.  Now the counter will increment\n           food = 'cheeseburger';\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(1);\n\n       * ```\n       *\n       *\n       *\n       * @param {(function()|string)} watchExpression Expression that is evaluated on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers\n       *    a call to the `listener`.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(scope)`: called with current `scope` as a parameter.\n       * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value\n       *    of `watchExpression` changes.\n       *\n       *    - `newVal` contains the current value of the `watchExpression`\n       *    - `oldVal` contains the previous value of the `watchExpression`\n       *    - `scope` refers to the current scope\n       * @param {boolean=} [objectEquality=false] Compare for object equality using {@link angular.equals} instead of\n       *     comparing for reference equality.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) {\n        var get = $parse(watchExp);\n        var fn = isFunction(listener) ? listener : noop;\n\n        if (get.$$watchDelegate) {\n          return get.$$watchDelegate(this, fn, objectEquality, get, watchExp);\n        }\n        var scope = this,\n            array = scope.$$watchers,\n            watcher = {\n              fn: fn,\n              last: initWatchVal,\n              get: get,\n              exp: prettyPrintExpression || watchExp,\n              eq: !!objectEquality\n            };\n\n        lastDirtyWatch = null;\n\n        if (!array) {\n          array = scope.$$watchers = [];\n          array.$$digestWatchIndex = -1;\n        }\n        // we use unshift since we use a while loop in $digest for speed.\n        // the while loop reads in reverse order.\n        array.unshift(watcher);\n        array.$$digestWatchIndex++;\n        incrementWatchersCount(this, 1);\n\n        return function deregisterWatch() {\n          var index = arrayRemove(array, watcher);\n          if (index >= 0) {\n            incrementWatchersCount(scope, -1);\n            if (index < array.$$digestWatchIndex) {\n              array.$$digestWatchIndex--;\n            }\n          }\n          lastDirtyWatch = null;\n        };\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchGroup\n       * @kind function\n       *\n       * @description\n       * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`.\n       * If any one expression in the collection changes the `listener` is executed.\n       *\n       * - The items in the `watchExpressions` array are observed via the standard `$watch` operation. Their return\n       *   values are examined for changes on every call to `$digest`.\n       * - The `listener` is called whenever any expression in the `watchExpressions` array changes.\n       *\n       * `$watchGroup` is more performant than watching each expression individually, and should be\n       * used when the listener does not need to know which expression has changed.\n       * If the listener needs to know which expression has changed,\n       * {@link ng.$rootScope.Scope#$watch $watch()} or\n       * {@link ng.$rootScope.Scope#$watchCollection $watchCollection()} should be used.\n       *\n       * @param {Array.<string|Function(scope)>} watchExpressions Array of expressions that will be individually\n       * watched using {@link ng.$rootScope.Scope#$watch $watch()}\n       *\n       * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any\n       *    expression in `watchExpressions` changes\n       *    The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`.\n       *\n       *    Note that `newValues` and `oldValues` reflect the differences in each **individual**\n       *    expression, and not the difference of the values between each call of the listener.\n       *    That means the difference between `newValues` and `oldValues` cannot be used to determine\n       *    which expression has changed / remained stable:\n       *\n       *    ```js\n       *\n       *    $scope.$watchGroup(['v1', 'v2'], function(newValues, oldValues) {\n       *      console.log(newValues, oldValues);\n       *    });\n       *\n       *    // newValues, oldValues initially\n       *    // [undefined, undefined], [undefined, undefined]\n       *\n       *    $scope.v1 = 'a';\n       *    $scope.v2 = 'a';\n       *\n       *    // ['a', 'a'], [undefined, undefined]\n       *\n       *    $scope.v2 = 'b'\n       *\n       *    // v1 hasn't changed since it became `'a'`, therefore its oldValue is still `undefined`\n       *    // ['a', 'b'], [undefined, 'a']\n       *\n       *    ```\n       *\n       *    The `scope` refers to the current scope.\n       * @returns {function()} Returns a de-registration function for all listeners.\n       */\n      $watchGroup: function(watchExpressions, listener) {\n        var oldValues = new Array(watchExpressions.length);\n        var newValues = new Array(watchExpressions.length);\n        var deregisterFns = [];\n        var self = this;\n        var changeReactionScheduled = false;\n        var firstRun = true;\n\n        if (!watchExpressions.length) {\n          // No expressions means we call the listener ASAP\n          var shouldCall = true;\n          self.$evalAsync(function() {\n            if (shouldCall) listener(newValues, newValues, self);\n          });\n          return function deregisterWatchGroup() {\n            shouldCall = false;\n          };\n        }\n\n        if (watchExpressions.length === 1) {\n          // Special case size of one\n          return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) {\n            newValues[0] = value;\n            oldValues[0] = oldValue;\n            listener(newValues, (value === oldValue) ? newValues : oldValues, scope);\n          });\n        }\n\n        forEach(watchExpressions, function(expr, i) {\n          var unwatchFn = self.$watch(expr, function watchGroupSubAction(value, oldValue) {\n            newValues[i] = value;\n            oldValues[i] = oldValue;\n            if (!changeReactionScheduled) {\n              changeReactionScheduled = true;\n              self.$evalAsync(watchGroupAction);\n            }\n          });\n          deregisterFns.push(unwatchFn);\n        });\n\n        function watchGroupAction() {\n          changeReactionScheduled = false;\n\n          if (firstRun) {\n            firstRun = false;\n            listener(newValues, newValues, self);\n          } else {\n            listener(newValues, oldValues, self);\n          }\n        }\n\n        return function deregisterWatchGroup() {\n          while (deregisterFns.length) {\n            deregisterFns.shift()();\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchCollection\n       * @kind function\n       *\n       * @description\n       * Shallow watches the properties of an object and fires whenever any of the properties change\n       * (for arrays, this implies watching the array items; for object maps, this implies watching\n       * the properties). If a change is detected, the `listener` callback is fired.\n       *\n       * - The `obj` collection is observed via standard $watch operation and is examined on every\n       *   call to $digest() to see if any items have been added, removed, or moved.\n       * - The `listener` is called whenever anything within the `obj` has changed. Examples include\n       *   adding, removing, and moving items belonging to an object or array.\n       *\n       *\n       * @example\n       * ```js\n          $scope.names = ['igor', 'matias', 'misko', 'james'];\n          $scope.dataCount = 4;\n\n          $scope.$watchCollection('names', function(newNames, oldNames) {\n            $scope.dataCount = newNames.length;\n          });\n\n          expect($scope.dataCount).toEqual(4);\n          $scope.$digest();\n\n          //still at 4 ... no changes\n          expect($scope.dataCount).toEqual(4);\n\n          $scope.names.pop();\n          $scope.$digest();\n\n          //now there's been a change\n          expect($scope.dataCount).toEqual(3);\n       * ```\n       *\n       *\n       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The\n       *    expression value should evaluate to an object or an array which is observed on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the\n       *    collection will trigger a call to the `listener`.\n       *\n       * @param {function(newCollection, oldCollection, scope)} listener a callback function called\n       *    when a change is detected.\n       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression\n       *    - The `oldCollection` object is a copy of the former collection data.\n       *      Due to performance considerations, the`oldCollection` value is computed only if the\n       *      `listener` function declares two or more arguments.\n       *    - The `scope` argument refers to the current scope.\n       *\n       * @returns {function()} Returns a de-registration function for this listener. When the\n       *    de-registration function is executed, the internal watch operation is terminated.\n       */\n      $watchCollection: function(obj, listener) {\n        $watchCollectionInterceptor.$stateful = true;\n\n        var self = this;\n        // the current value, updated on each dirty-check run\n        var newValue;\n        // a shallow copy of the newValue from the last dirty-check run,\n        // updated to match newValue during dirty-check run\n        var oldValue;\n        // a shallow copy of the newValue from when the last change happened\n        var veryOldValue;\n        // only track veryOldValue if the listener is asking for it\n        var trackVeryOldValue = (listener.length > 1);\n        var changeDetected = 0;\n        var changeDetector = $parse(obj, $watchCollectionInterceptor);\n        var internalArray = [];\n        var internalObject = {};\n        var initRun = true;\n        var oldLength = 0;\n\n        function $watchCollectionInterceptor(_value) {\n          newValue = _value;\n          var newLength, key, bothNaN, newItem, oldItem;\n\n          // If the new value is undefined, then return undefined as the watch may be a one-time watch\n          if (isUndefined(newValue)) return;\n\n          if (!isObject(newValue)) { // if primitive\n            if (oldValue !== newValue) {\n              oldValue = newValue;\n              changeDetected++;\n            }\n          } else if (isArrayLike(newValue)) {\n            if (oldValue !== internalArray) {\n              // we are transitioning from something which was not an array into array.\n              oldValue = internalArray;\n              oldLength = oldValue.length = 0;\n              changeDetected++;\n            }\n\n            newLength = newValue.length;\n\n            if (oldLength !== newLength) {\n              // if lengths do not match we need to trigger change notification\n              changeDetected++;\n              oldValue.length = oldLength = newLength;\n            }\n            // copy the items to oldValue and look for changes.\n            for (var i = 0; i < newLength; i++) {\n              oldItem = oldValue[i];\n              newItem = newValue[i];\n\n              // eslint-disable-next-line no-self-compare\n              bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n              if (!bothNaN && (oldItem !== newItem)) {\n                changeDetected++;\n                oldValue[i] = newItem;\n              }\n            }\n          } else {\n            if (oldValue !== internalObject) {\n              // we are transitioning from something which was not an object into object.\n              oldValue = internalObject = {};\n              oldLength = 0;\n              changeDetected++;\n            }\n            // copy the items to oldValue and look for changes.\n            newLength = 0;\n            for (key in newValue) {\n              if (hasOwnProperty.call(newValue, key)) {\n                newLength++;\n                newItem = newValue[key];\n                oldItem = oldValue[key];\n\n                if (key in oldValue) {\n                  // eslint-disable-next-line no-self-compare\n                  bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n                  if (!bothNaN && (oldItem !== newItem)) {\n                    changeDetected++;\n                    oldValue[key] = newItem;\n                  }\n                } else {\n                  oldLength++;\n                  oldValue[key] = newItem;\n                  changeDetected++;\n                }\n              }\n            }\n            if (oldLength > newLength) {\n              // we used to have more keys, need to find them and destroy them.\n              changeDetected++;\n              for (key in oldValue) {\n                if (!hasOwnProperty.call(newValue, key)) {\n                  oldLength--;\n                  delete oldValue[key];\n                }\n              }\n            }\n          }\n          return changeDetected;\n        }\n\n        function $watchCollectionAction() {\n          if (initRun) {\n            initRun = false;\n            listener(newValue, newValue, self);\n          } else {\n            listener(newValue, veryOldValue, self);\n          }\n\n          // make a copy for the next time a collection is changed\n          if (trackVeryOldValue) {\n            if (!isObject(newValue)) {\n              //primitive\n              veryOldValue = newValue;\n            } else if (isArrayLike(newValue)) {\n              veryOldValue = new Array(newValue.length);\n              for (var i = 0; i < newValue.length; i++) {\n                veryOldValue[i] = newValue[i];\n              }\n            } else { // if object\n              veryOldValue = {};\n              for (var key in newValue) {\n                if (hasOwnProperty.call(newValue, key)) {\n                  veryOldValue[key] = newValue[key];\n                }\n              }\n            }\n          }\n        }\n\n        return this.$watch(changeDetector, $watchCollectionAction);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$digest\n       * @kind function\n       *\n       * @description\n       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and\n       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change\n       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}\n       * until no more listeners are firing. This means that it is possible to get into an infinite\n       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of\n       * iterations exceeds 10.\n       *\n       * Usually, you don't call `$digest()` directly in\n       * {@link ng.directive:ngController controllers} or in\n       * {@link ng.$compileProvider#directive directives}.\n       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within\n       * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`.\n       *\n       * If you want to be notified whenever `$digest()` is called,\n       * you can register a `watchExpression` function with\n       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.\n       *\n       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.\n       *\n       * @example\n       * ```js\n           var scope = ...;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n       * ```\n       *\n       */\n      $digest: function() {\n        var watch, value, last, fn, get,\n            watchers,\n            dirty, ttl = TTL,\n            next, current, target = this,\n            watchLog = [],\n            logIdx, asyncTask;\n\n        beginPhase('$digest');\n        // Check for changes to browser url that happened in sync before the call to $digest\n        $browser.$$checkUrlChange();\n\n        if (this === $rootScope && applyAsyncId !== null) {\n          // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then\n          // cancel the scheduled $apply and flush the queue of expressions to be evaluated.\n          $browser.defer.cancel(applyAsyncId);\n          flushApplyAsync();\n        }\n\n        lastDirtyWatch = null;\n\n        do { // \"while dirty\" loop\n          dirty = false;\n          current = target;\n\n          // It's safe for asyncQueuePosition to be a local variable here because this loop can't\n          // be reentered recursively. Calling $digest from a function passed to $evalAsync would\n          // lead to a '$digest already in progress' error.\n          for (var asyncQueuePosition = 0; asyncQueuePosition < asyncQueue.length; asyncQueuePosition++) {\n            try {\n              asyncTask = asyncQueue[asyncQueuePosition];\n              fn = asyncTask.fn;\n              fn(asyncTask.scope, asyncTask.locals);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n            lastDirtyWatch = null;\n          }\n          asyncQueue.length = 0;\n\n          traverseScopesLoop:\n          do { // \"traverse the scopes\" loop\n            if ((watchers = !current.$$suspended && current.$$watchers)) {\n              // process our watches\n              watchers.$$digestWatchIndex = watchers.length;\n              while (watchers.$$digestWatchIndex--) {\n                try {\n                  watch = watchers[watchers.$$digestWatchIndex];\n                  // Most common watches are on primitives, in which case we can short\n                  // circuit it with === operator, only when === fails do we use .equals\n                  if (watch) {\n                    get = watch.get;\n                    if ((value = get(current)) !== (last = watch.last) &&\n                        !(watch.eq\n                            ? equals(value, last)\n                            : (isNumberNaN(value) && isNumberNaN(last)))) {\n                      dirty = true;\n                      lastDirtyWatch = watch;\n                      watch.last = watch.eq ? copy(value, null) : value;\n                      fn = watch.fn;\n                      fn(value, ((last === initWatchVal) ? value : last), current);\n                      if (ttl < 5) {\n                        logIdx = 4 - ttl;\n                        if (!watchLog[logIdx]) watchLog[logIdx] = [];\n                        watchLog[logIdx].push({\n                          msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp,\n                          newVal: value,\n                          oldVal: last\n                        });\n                      }\n                    } else if (watch === lastDirtyWatch) {\n                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers\n                      // have already been tested.\n                      dirty = false;\n                      break traverseScopesLoop;\n                    }\n                  }\n                } catch (e) {\n                  $exceptionHandler(e);\n                }\n              }\n            }\n\n            // Insanity Warning: scope depth-first traversal\n            // yes, this code is a bit crazy, but it works and we have tests to prove it!\n            // this piece should be kept in sync with the traversal in $broadcast\n            // (though it differs due to having the extra check for $$suspended and does not\n            // check $$listenerCount)\n            if (!(next = ((!current.$$suspended && current.$$watchersCount && current.$$childHead) ||\n                (current !== target && current.$$nextSibling)))) {\n              while (current !== target && !(next = current.$$nextSibling)) {\n                current = current.$parent;\n              }\n            }\n          } while ((current = next));\n\n          // `break traverseScopesLoop;` takes us to here\n\n          if ((dirty || asyncQueue.length) && !(ttl--)) {\n            clearPhase();\n            throw $rootScopeMinErr('infdig',\n                '{0} $digest() iterations reached. Aborting!\\n' +\n                'Watchers fired in the last 5 iterations: {1}',\n                TTL, watchLog);\n          }\n\n        } while (dirty || asyncQueue.length);\n\n        clearPhase();\n\n        // postDigestQueuePosition isn't local here because this loop can be reentered recursively.\n        while (postDigestQueuePosition < postDigestQueue.length) {\n          try {\n            postDigestQueue[postDigestQueuePosition++]();\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        }\n        postDigestQueue.length = postDigestQueuePosition = 0;\n\n        // Check for changes to browser url that happened during the $digest\n        // (for which no event is fired; e.g. via `history.pushState()`)\n        $browser.$$checkUrlChange();\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$suspend\n       * @kind function\n       *\n       * @description\n       * Suspend watchers of this scope subtree so that they will not be invoked during digest.\n       *\n       * This can be used to optimize your application when you know that running those watchers\n       * is redundant.\n       *\n       * **Warning**\n       *\n       * Suspending scopes from the digest cycle can have unwanted and difficult to debug results.\n       * Only use this approach if you are confident that you know what you are doing and have\n       * ample tests to ensure that bindings get updated as you expect.\n       *\n       * Some of the things to consider are:\n       *\n       * * Any external event on a directive/component will not trigger a digest while the hosting\n       *   scope is suspended - even if the event handler calls `$apply()` or `$rootScope.$digest()`.\n       * * Transcluded content exists on a scope that inherits from outside a directive but exists\n       *   as a child of the directive's containing scope. If the containing scope is suspended the\n       *   transcluded scope will also be suspended, even if the scope from which the transcluded\n       *   scope inherits is not suspended.\n       * * Multiple directives trying to manage the suspended status of a scope can confuse each other:\n       *    * A call to `$suspend()` on an already suspended scope is a no-op.\n       *    * A call to `$resume()` on a non-suspended scope is a no-op.\n       *    * If two directives suspend a scope, then one of them resumes the scope, the scope will no\n       *      longer be suspended. This could result in the other directive believing a scope to be\n       *      suspended when it is not.\n       * * If a parent scope is suspended then all its descendants will be also excluded from future\n       *   digests whether or not they have been suspended themselves. Note that this also applies to\n       *   isolate child scopes.\n       * * Calling `$digest()` directly on a descendant of a suspended scope will still run the watchers\n       *   for that scope and its descendants. When digesting we only check whether the current scope is\n       *   locally suspended, rather than checking whether it has a suspended ancestor.\n       * * Calling `$resume()` on a scope that has a suspended ancestor will not cause the scope to be\n       *   included in future digests until all its ancestors have been resumed.\n       * * Resolved promises, e.g. from explicit `$q` deferreds and `$http` calls, trigger `$apply()`\n       *   against the `$rootScope` and so will still trigger a global digest even if the promise was\n       *   initiated by a component that lives on a suspended scope.\n       */\n      $suspend: function() {\n        this.$$suspended = true;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$isSuspended\n       * @kind function\n       *\n       * @description\n       * Call this method to determine if this scope has been explicitly suspended. It will not\n       * tell you whether an ancestor has been suspended.\n       * To determine if this scope will be excluded from a digest triggered at the $rootScope,\n       * for example, you must check all its ancestors:\n       *\n       * ```\n       * function isExcludedFromDigest(scope) {\n       *   while(scope) {\n       *     if (scope.$isSuspended()) return true;\n       *     scope = scope.$parent;\n       *   }\n       *   return false;\n       * ```\n       *\n       * Be aware that a scope may not be included in digests if it has a suspended ancestor,\n       * even if `$isSuspended()` returns false.\n       *\n       * @returns true if the current scope has been suspended.\n       */\n      $isSuspended: function() {\n        return this.$$suspended;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$resume\n       * @kind function\n       *\n       * @description\n       * Resume watchers of this scope subtree in case it was suspended.\n       *\n       * See {@link $rootScope.Scope#$suspend} for information about the dangers of using this approach.\n       */\n      $resume: function() {\n        this.$$suspended = false;\n      },\n\n      /**\n       * @ngdoc event\n       * @name $rootScope.Scope#$destroy\n       * @eventType broadcast on scope being destroyed\n       *\n       * @description\n       * Broadcasted when a scope and its children are being destroyed.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$destroy\n       * @kind function\n       *\n       * @description\n       * Removes the current scope (and all of its children) from the parent scope. Removal implies\n       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer\n       * propagate to the current scope and its children. Removal also implies that the current\n       * scope is eligible for garbage collection.\n       *\n       * The `$destroy()` is usually used by directives such as\n       * {@link ng.directive:ngRepeat ngRepeat} for managing the\n       * unrolling of the loop.\n       *\n       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.\n       * Application code can register a `$destroy` event handler that will give it a chance to\n       * perform any necessary cleanup.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n      $destroy: function() {\n        // We can't destroy a scope that has been already destroyed.\n        if (this.$$destroyed) return;\n        var parent = this.$parent;\n\n        this.$broadcast('$destroy');\n        this.$$destroyed = true;\n\n        if (this === $rootScope) {\n          //Remove handlers attached to window when $rootScope is removed\n          $browser.$$applicationDestroyed();\n        }\n\n        incrementWatchersCount(this, -this.$$watchersCount);\n        for (var eventName in this.$$listenerCount) {\n          decrementListenerCount(this, this.$$listenerCount[eventName], eventName);\n        }\n\n        // sever all the references to parent scopes (after this cleanup, the current scope should\n        // not be retained by any of our references and should be eligible for garbage collection)\n        if (parent && parent.$$childHead === this) parent.$$childHead = this.$$nextSibling;\n        if (parent && parent.$$childTail === this) parent.$$childTail = this.$$prevSibling;\n        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;\n        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;\n\n        // Disable listeners, watchers and apply/digest methods\n        this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop;\n        this.$on = this.$watch = this.$watchGroup = function() { return noop; };\n        this.$$listeners = {};\n\n        // Disconnect the next sibling to prevent `cleanUpScope` destroying those too\n        this.$$nextSibling = null;\n        cleanUpScope(this);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$eval\n       * @kind function\n       *\n       * @description\n       * Executes the `expression` on the current scope and returns the result. Any exceptions in\n       * the expression are propagated (uncaught). This is useful when evaluating AngularJS\n       * expressions.\n       *\n       * @example\n       * ```js\n           var scope = ng.$rootScope.Scope();\n           scope.a = 1;\n           scope.b = 2;\n\n           expect(scope.$eval('a+b')).toEqual(3);\n           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);\n       * ```\n       *\n       * @param {(string|function())=} expression An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       * @returns {*} The result of evaluating the expression.\n       */\n      $eval: function(expr, locals) {\n        return $parse(expr)(this, locals);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$evalAsync\n       * @kind function\n       *\n       * @description\n       * Executes the expression on the current scope at a later point in time.\n       *\n       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only\n       * that:\n       *\n       *   - it will execute after the function that scheduled the evaluation (preferably before DOM\n       *     rendering).\n       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after\n       *     `expression` execution.\n       *\n       * Any exceptions from the execution of the expression are forwarded to the\n       * {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle\n       * will be scheduled. However, it is encouraged to always call code that changes the model\n       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.\n       *\n       * @param {(string|function())=} expression An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       */\n      $evalAsync: function(expr, locals) {\n        // if we are outside of an $digest loop and this is the first time we are scheduling async\n        // task also schedule async auto-flush\n        if (!$rootScope.$$phase && !asyncQueue.length) {\n          $browser.defer(function() {\n            if (asyncQueue.length) {\n              $rootScope.$digest();\n            }\n          });\n        }\n\n        asyncQueue.push({scope: this, fn: $parse(expr), locals: locals});\n      },\n\n      $$postDigest: function(fn) {\n        postDigestQueue.push(fn);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$apply\n       * @kind function\n       *\n       * @description\n       * `$apply()` is used to execute an expression in AngularJS from outside of the AngularJS\n       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).\n       * Because we are calling into the AngularJS framework we need to perform proper scope life\n       * cycle of {@link ng.$exceptionHandler exception handling},\n       * {@link ng.$rootScope.Scope#$digest executing watches}.\n       *\n       * **Life cycle: Pseudo-Code of `$apply()`**\n       *\n       * ```js\n           function $apply(expr) {\n             try {\n               return $eval(expr);\n             } catch (e) {\n               $exceptionHandler(e);\n             } finally {\n               $root.$digest();\n             }\n           }\n       * ```\n       *\n       *\n       * Scope's `$apply()` method transitions through the following stages:\n       *\n       * 1. The {@link guide/expression expression} is executed using the\n       *    {@link ng.$rootScope.Scope#$eval $eval()} method.\n       * 2. Any exceptions from the execution of the expression are forwarded to the\n       *    {@link ng.$exceptionHandler $exceptionHandler} service.\n       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the\n       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.\n       *\n       *\n       * @param {(string|function())=} exp An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       *\n       * @returns {*} The result of evaluating the expression.\n       */\n      $apply: function(expr) {\n        try {\n          beginPhase('$apply');\n          try {\n            return this.$eval(expr);\n          } finally {\n            clearPhase();\n          }\n        } catch (e) {\n          $exceptionHandler(e);\n        } finally {\n          try {\n            $rootScope.$digest();\n          } catch (e) {\n            $exceptionHandler(e);\n            // eslint-disable-next-line no-unsafe-finally\n            throw e;\n          }\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$applyAsync\n       * @kind function\n       *\n       * @description\n       * Schedule the invocation of $apply to occur at a later time. The actual time difference\n       * varies across browsers, but is typically around ~10 milliseconds.\n       *\n       * This can be used to queue up multiple expressions which need to be evaluated in the same\n       * digest.\n       *\n       * @param {(string|function())=} exp An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       */\n      $applyAsync: function(expr) {\n        var scope = this;\n        if (expr) {\n          applyAsyncQueue.push($applyAsyncExpression);\n        }\n        expr = $parse(expr);\n        scheduleApplyAsync();\n\n        function $applyAsyncExpression() {\n          scope.$eval(expr);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$on\n       * @kind function\n       *\n       * @description\n       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for\n       * discussion of event life cycle.\n       *\n       * The event listener function format is: `function(event, args...)`. The `event` object\n       * passed into the listener has the following attributes:\n       *\n       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or\n       *     `$broadcast`-ed.\n       *   - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the\n       *     event propagates through the scope hierarchy, this property is set to null.\n       *   - `name` - `{string}`: name of the event.\n       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel\n       *     further event propagation (available only for events that were `$emit`-ed).\n       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag\n       *     to true.\n       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.\n       *\n       * @param {string} name Event name to listen on.\n       * @param {function(event, ...args)} listener Function to call when the event is emitted.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $on: function(name, listener) {\n        var namedListeners = this.$$listeners[name];\n        if (!namedListeners) {\n          this.$$listeners[name] = namedListeners = [];\n        }\n        namedListeners.push(listener);\n\n        var current = this;\n        do {\n          if (!current.$$listenerCount[name]) {\n            current.$$listenerCount[name] = 0;\n          }\n          current.$$listenerCount[name]++;\n        } while ((current = current.$parent));\n\n        var self = this;\n        return function() {\n          var indexOfListener = namedListeners.indexOf(listener);\n          if (indexOfListener !== -1) {\n            // Use delete in the hope of the browser deallocating the memory for the array entry,\n            // while not shifting the array indexes of other listeners.\n            // See issue https://github.com/angular/angular.js/issues/16135\n            delete namedListeners[indexOfListener];\n            decrementListenerCount(self, 1, name);\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$emit\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` upwards through the scope hierarchy notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$emit` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event traverses upwards toward the root scope and calls all\n       * registered listeners along the way. The event will stop propagating if one of the listeners\n       * cancels it.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to emit.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).\n       */\n      $emit: function(name, args) {\n        var empty = [],\n            namedListeners,\n            scope = this,\n            stopPropagation = false,\n            event = {\n              name: name,\n              targetScope: scope,\n              stopPropagation: function() {stopPropagation = true;},\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            i, length;\n\n        do {\n          namedListeners = scope.$$listeners[name] || empty;\n          event.currentScope = scope;\n          for (i = 0, length = namedListeners.length; i < length; i++) {\n\n            // if listeners were deregistered, defragment the array\n            if (!namedListeners[i]) {\n              namedListeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n            try {\n              //allow all listeners attached to the current scope to run\n              namedListeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          //if any listener on the current scope stops propagation, prevent bubbling\n          if (stopPropagation) {\n            break;\n          }\n          //traverse upwards\n          scope = scope.$parent;\n        } while (scope);\n\n        event.currentScope = null;\n\n        return event;\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$broadcast\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$broadcast` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current\n       * scope and calls all registered listeners along the way. The event cannot be canceled.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to broadcast.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}\n       */\n      $broadcast: function(name, args) {\n        var target = this,\n            current = target,\n            next = target,\n            event = {\n              name: name,\n              targetScope: target,\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            };\n\n        if (!target.$$listenerCount[name]) return event;\n\n        var listenerArgs = concat([event], arguments, 1),\n            listeners, i, length;\n\n        //down while you can, then up and next sibling or up and next sibling until back at root\n        while ((current = next)) {\n          event.currentScope = current;\n          listeners = current.$$listeners[name] || [];\n          for (i = 0, length = listeners.length; i < length; i++) {\n            // if listeners were deregistered, defragment the array\n            if (!listeners[i]) {\n              listeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n\n            try {\n              listeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n\n          // Insanity Warning: scope depth-first traversal\n          // yes, this code is a bit crazy, but it works and we have tests to prove it!\n          // this piece should be kept in sync with the traversal in $digest\n          // (though it differs due to having the extra check for $$listenerCount and\n          // does not check $$suspended)\n          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||\n              (current !== target && current.$$nextSibling)))) {\n            while (current !== target && !(next = current.$$nextSibling)) {\n              current = current.$parent;\n            }\n          }\n        }\n\n        event.currentScope = null;\n        return event;\n      }\n    };\n\n    var $rootScope = new Scope();\n\n    //The internal queues. Expose them on the $rootScope for debugging/testing purposes.\n    var asyncQueue = $rootScope.$$asyncQueue = [];\n    var postDigestQueue = $rootScope.$$postDigestQueue = [];\n    var applyAsyncQueue = $rootScope.$$applyAsyncQueue = [];\n\n    var postDigestQueuePosition = 0;\n\n    return $rootScope;\n\n\n    function beginPhase(phase) {\n      if ($rootScope.$$phase) {\n        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);\n      }\n\n      $rootScope.$$phase = phase;\n    }\n\n    function clearPhase() {\n      $rootScope.$$phase = null;\n    }\n\n    function incrementWatchersCount(current, count) {\n      do {\n        current.$$watchersCount += count;\n      } while ((current = current.$parent));\n    }\n\n    function decrementListenerCount(current, count, name) {\n      do {\n        current.$$listenerCount[name] -= count;\n\n        if (current.$$listenerCount[name] === 0) {\n          delete current.$$listenerCount[name];\n        }\n      } while ((current = current.$parent));\n    }\n\n    /**\n     * function used as an initial value for watchers.\n     * because it's unique we can easily tell it apart from other values\n     */\n    function initWatchVal() {}\n\n    function flushApplyAsync() {\n      while (applyAsyncQueue.length) {\n        try {\n          applyAsyncQueue.shift()();\n        } catch (e) {\n          $exceptionHandler(e);\n        }\n      }\n      applyAsyncId = null;\n    }\n\n    function scheduleApplyAsync() {\n      if (applyAsyncId === null) {\n        applyAsyncId = $browser.defer(function() {\n          $rootScope.$apply(flushApplyAsync);\n        });\n      }\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $rootElement\n *\n * @description\n * The root element of AngularJS application. This is either the element where {@link\n * ng.directive:ngApp ngApp} was declared or the element passed into\n * {@link angular.bootstrap}. The element represents the root element of application. It is also the\n * location where the application's {@link auto.$injector $injector} service gets\n * published, and can be retrieved using `$rootElement.injector()`.\n */\n\n\n// the implementation is in angular.bootstrap\n\n/**\n * @this\n * @description\n * Private service to sanitize uris for links and images. Used by $compile and $sanitize.\n */\nfunction $$SanitizeUriProvider() {\n  var aHrefSanitizationWhitelist = /^\\s*(https?|s?ftp|mailto|tel|file):/,\n    imgSrcSanitizationWhitelist = /^\\s*((https?|ftp|file|blob):|data:image\\/)/;\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      aHrefSanitizationWhitelist = regexp;\n      return this;\n    }\n    return aHrefSanitizationWhitelist;\n  };\n\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      imgSrcSanitizationWhitelist = regexp;\n      return this;\n    }\n    return imgSrcSanitizationWhitelist;\n  };\n\n  this.$get = function() {\n    return function sanitizeUri(uri, isImage) {\n      var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;\n      var normalizedVal;\n      normalizedVal = urlResolve(uri && uri.trim()).href;\n      if (normalizedVal !== '' && !normalizedVal.match(regex)) {\n        return 'unsafe:' + normalizedVal;\n      }\n      return uri;\n    };\n  };\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* exported $SceProvider, $SceDelegateProvider */\n\nvar $sceMinErr = minErr('$sce');\n\nvar SCE_CONTEXTS = {\n  // HTML is used when there's HTML rendered (e.g. ng-bind-html, iframe srcdoc binding).\n  HTML: 'html',\n\n  // Style statements or stylesheets. Currently unused in AngularJS.\n  CSS: 'css',\n\n  // An URL used in a context where it does not refer to a resource that loads code. Currently\n  // unused in AngularJS.\n  URL: 'url',\n\n  // RESOURCE_URL is a subtype of URL used where the referred-to resource could be interpreted as\n  // code. (e.g. ng-include, script src binding, templateUrl)\n  RESOURCE_URL: 'resourceUrl',\n\n  // Script. Currently unused in AngularJS.\n  JS: 'js'\n};\n\n// Helper functions follow.\n\nvar UNDERSCORE_LOWERCASE_REGEXP = /_([a-z])/g;\n\nfunction snakeToCamel(name) {\n  return name\n    .replace(UNDERSCORE_LOWERCASE_REGEXP, fnCamelCaseReplace);\n}\n\nfunction adjustMatcher(matcher) {\n  if (matcher === 'self') {\n    return matcher;\n  } else if (isString(matcher)) {\n    // Strings match exactly except for 2 wildcards - '*' and '**'.\n    // '*' matches any character except those from the set ':/.?&'.\n    // '**' matches any character (like .* in a RegExp).\n    // More than 2 *'s raises an error as it's ill defined.\n    if (matcher.indexOf('***') > -1) {\n      throw $sceMinErr('iwcard',\n          'Illegal sequence *** in string matcher.  String: {0}', matcher);\n    }\n    matcher = escapeForRegexp(matcher).\n                  replace(/\\\\\\*\\\\\\*/g, '.*').\n                  replace(/\\\\\\*/g, '[^:/.?&;]*');\n    return new RegExp('^' + matcher + '$');\n  } else if (isRegExp(matcher)) {\n    // The only other type of matcher allowed is a Regexp.\n    // Match entire URL / disallow partial matches.\n    // Flags are reset (i.e. no global, ignoreCase or multiline)\n    return new RegExp('^' + matcher.source + '$');\n  } else {\n    throw $sceMinErr('imatcher',\n        'Matchers may only be \"self\", string patterns or RegExp objects');\n  }\n}\n\n\nfunction adjustMatchers(matchers) {\n  var adjustedMatchers = [];\n  if (isDefined(matchers)) {\n    forEach(matchers, function(matcher) {\n      adjustedMatchers.push(adjustMatcher(matcher));\n    });\n  }\n  return adjustedMatchers;\n}\n\n\n/**\n * @ngdoc service\n * @name $sceDelegate\n * @kind function\n *\n * @description\n *\n * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict\n * Contextual Escaping (SCE)} services to AngularJS.\n *\n * For an overview of this service and the functionnality it provides in AngularJS, see the main\n * page for {@link ng.$sce SCE}. The current page is targeted for developers who need to alter how\n * SCE works in their application, which shouldn't be needed in most cases.\n *\n * <div class=\"alert alert-danger\">\n * AngularJS strongly relies on contextual escaping for the security of bindings: disabling or\n * modifying this might cause cross site scripting (XSS) vulnerabilities. For libraries owners,\n * changes to this service will also influence users, so be extra careful and document your changes.\n * </div>\n *\n * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of\n * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is\n * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to\n * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things\n * work because `$sce` delegates to `$sceDelegate` for these operations.\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.\n *\n * The default instance of `$sceDelegate` should work out of the box with little pain.  While you\n * can override it completely to change the behavior of `$sce`, the common case would\n * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting\n * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as\n * templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist\n * $sceDelegateProvider.resourceUrlWhitelist} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n */\n\n/**\n * @ngdoc provider\n * @name $sceDelegateProvider\n * @this\n *\n * @description\n *\n * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate\n * $sceDelegate service}, used as a delegate for {@link ng.$sce Strict Contextual Escaping (SCE)}.\n *\n * The `$sceDelegateProvider` allows one to get/set the whitelists and blacklists used to ensure\n * that the URLs used for sourcing AngularJS templates and other script-running URLs are safe (all\n * places that use the `$sce.RESOURCE_URL` context). See\n * {@link ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist}\n * and\n * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist},\n *\n * For the general details about this service in AngularJS, read the main page for {@link ng.$sce\n * Strict Contextual Escaping (SCE)}.\n *\n * **Example**:  Consider the following case. <a name=\"example\"></a>\n *\n * - your app is hosted at url `http://myapp.example.com/`\n * - but some of your templates are hosted on other domains you control such as\n *   `http://srv01.assets.example.com/`, `http://srv02.assets.example.com/`, etc.\n * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.\n *\n * Here is what a secure configuration for this scenario might look like:\n *\n * ```\n *  angular.module('myApp', []).config(function($sceDelegateProvider) {\n *    $sceDelegateProvider.resourceUrlWhitelist([\n *      // Allow same origin resource loads.\n *      'self',\n *      // Allow loading from our assets domain.  Notice the difference between * and **.\n *      'http://srv*.assets.example.com/**'\n *    ]);\n *\n *    // The blacklist overrides the whitelist so the open redirect here is blocked.\n *    $sceDelegateProvider.resourceUrlBlacklist([\n *      'http://myapp.example.com/clickThru**'\n *    ]);\n *  });\n * ```\n * Note that an empty whitelist will block every resource URL from being loaded, and will require\n * you to manually mark each one as trusted with `$sce.trustAsResourceUrl`. However, templates\n * requested by {@link ng.$templateRequest $templateRequest} that are present in\n * {@link ng.$templateCache $templateCache} will not go through this check. If you have a mechanism\n * to populate your templates in that cache at config time, then it is a good idea to remove 'self'\n * from that whitelist. This helps to mitigate the security impact of certain types of issues, like\n * for instance attacker-controlled `ng-includes`.\n */\n\nfunction $SceDelegateProvider() {\n  this.SCE_CONTEXTS = SCE_CONTEXTS;\n\n  // Resource URLs can also be trusted by policy.\n  var resourceUrlWhitelist = ['self'],\n      resourceUrlBlacklist = [];\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlWhitelist\n   * @kind function\n   *\n   * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.\n   *\n   * @return {Array} The currently set whitelist array.\n   *\n   * @description\n   * Sets/Gets the whitelist of trusted resource URLs.\n   *\n   * The **default value** when no whitelist has been explicitly set is `['self']` allowing only\n   * same origin resource requests.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** the default whitelist of 'self' is not recommended if your app shares its origin\n   * with other apps! It is a good idea to limit it to only your application's directory.\n   * </div>\n   */\n  this.resourceUrlWhitelist = function(value) {\n    if (arguments.length) {\n      resourceUrlWhitelist = adjustMatchers(value);\n    }\n    return resourceUrlWhitelist;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlBlacklist\n   * @kind function\n   *\n   * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.</p><p>\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.</p><p>\n   *     The typical usage for the blacklist is to **block\n   *     [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as\n   *     these would otherwise be trusted but actually return content from the redirected domain.\n   *     </p><p>\n   *     Finally, **the blacklist overrides the whitelist** and has the final say.\n   *\n   * @return {Array} The currently set blacklist array.\n   *\n   * @description\n   * Sets/Gets the blacklist of trusted resource URLs.\n   *\n   * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there\n   * is no blacklist.)\n   */\n\n  this.resourceUrlBlacklist = function(value) {\n    if (arguments.length) {\n      resourceUrlBlacklist = adjustMatchers(value);\n    }\n    return resourceUrlBlacklist;\n  };\n\n  this.$get = ['$injector', function($injector) {\n\n    var htmlSanitizer = function htmlSanitizer(html) {\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    };\n\n    if ($injector.has('$sanitize')) {\n      htmlSanitizer = $injector.get('$sanitize');\n    }\n\n\n    function matchUrl(matcher, parsedUrl) {\n      if (matcher === 'self') {\n        return urlIsSameOrigin(parsedUrl);\n      } else {\n        // definitely a regex.  See adjustMatchers()\n        return !!matcher.exec(parsedUrl.href);\n      }\n    }\n\n    function isResourceUrlAllowedByPolicy(url) {\n      var parsedUrl = urlResolve(url.toString());\n      var i, n, allowed = false;\n      // Ensure that at least one item from the whitelist allows this url.\n      for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {\n        if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {\n          allowed = true;\n          break;\n        }\n      }\n      if (allowed) {\n        // Ensure that no item from the blacklist blocked this url.\n        for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {\n          if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {\n            allowed = false;\n            break;\n          }\n        }\n      }\n      return allowed;\n    }\n\n    function generateHolderType(Base) {\n      var holderType = function TrustedValueHolderType(trustedValue) {\n        this.$$unwrapTrustedValue = function() {\n          return trustedValue;\n        };\n      };\n      if (Base) {\n        holderType.prototype = new Base();\n      }\n      holderType.prototype.valueOf = function sceValueOf() {\n        return this.$$unwrapTrustedValue();\n      };\n      holderType.prototype.toString = function sceToString() {\n        return this.$$unwrapTrustedValue().toString();\n      };\n      return holderType;\n    }\n\n    var trustedValueHolderBase = generateHolderType(),\n        byType = {};\n\n    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#trustAs\n     *\n     * @description\n     * Returns a trusted representation of the parameter for the specified context. This trusted\n     * object will later on be used as-is, without any security check, by bindings or directives\n     * that require this security context.\n     * For instance, marking a string as trusted for the `$sce.HTML` context will entirely bypass\n     * the potential `$sanitize` call in corresponding `$sce.HTML` bindings or directives, such as\n     * `ng-bind-html`. Note that in most cases you won't need to call this function: if you have the\n     * sanitizer loaded, passing the value itself will render all the HTML that does not pose a\n     * security risk.\n     *\n     * See {@link ng.$sceDelegate#getTrusted getTrusted} for the function that will consume those\n     * trusted values, and {@link ng.$sce $sce} for general documentation about strict contextual\n     * escaping.\n     *\n     * @param {string} type The context in which this value is safe for use, e.g. `$sce.URL`,\n     *     `$sce.RESOURCE_URL`, `$sce.HTML`, `$sce.JS` or `$sce.CSS`.\n     *\n     * @param {*} value The value that should be considered trusted.\n     * @return {*} A trusted representation of value, that can be used in the given context.\n     */\n    function trustAs(type, trustedValue) {\n      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (!Constructor) {\n        throw $sceMinErr('icontext',\n            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',\n            type, trustedValue);\n      }\n      if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') {\n        return trustedValue;\n      }\n      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting\n      // mutable objects, we ensure here that the value passed in is actually a string.\n      if (typeof trustedValue !== 'string') {\n        throw $sceMinErr('itype',\n            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',\n            type);\n      }\n      return new Constructor(trustedValue);\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#valueOf\n     *\n     * @description\n     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.\n     *\n     * If the passed parameter is not a value that had been returned by {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, it must be returned as-is.\n     *\n     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}\n     *     call or anything else.\n     * @return {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns\n     *     `value` unchanged.\n     */\n    function valueOf(maybeTrusted) {\n      if (maybeTrusted instanceof trustedValueHolderBase) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      } else {\n        return maybeTrusted;\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#getTrusted\n     *\n     * @description\n     * Takes any input, and either returns a value that's safe to use in the specified context, or\n     * throws an exception.\n     *\n     * In practice, there are several cases. When given a string, this function runs checks\n     * and sanitization to make it safe without prior assumptions. When given the result of a {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call, it returns the originally supplied\n     * value if that value's context is valid for this call's context. Finally, this function can\n     * also throw when there is no way to turn `maybeTrusted` in a safe value (e.g., no sanitization\n     * is available or possible.)\n     *\n     * @param {string} type The context in which this value is to be used (such as `$sce.HTML`).\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} call, or anything else (which will not be considered trusted.)\n     * @return {*} A version of the value that's safe to use in the given context, or throws an\n     *     exception if this is impossible.\n     */\n    function getTrusted(type, maybeTrusted) {\n      if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') {\n        return maybeTrusted;\n      }\n      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      // If maybeTrusted is a trusted class instance or subclass instance, then unwrap and return\n      // as-is.\n      if (constructor && maybeTrusted instanceof constructor) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      }\n      // Otherwise, if we get here, then we may either make it safe, or throw an exception. This\n      // depends on the context: some are sanitizatible (HTML), some use whitelists (RESOURCE_URL),\n      // some are impossible to do (JS). This step isn't implemented for CSS and URL, as AngularJS\n      // has no corresponding sinks.\n      if (type === SCE_CONTEXTS.RESOURCE_URL) {\n        // RESOURCE_URL uses a whitelist.\n        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {\n          return maybeTrusted;\n        } else {\n          throw $sceMinErr('insecurl',\n              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',\n              maybeTrusted.toString());\n        }\n      } else if (type === SCE_CONTEXTS.HTML) {\n        // htmlSanitizer throws its own error when no sanitizer is available.\n        return htmlSanitizer(maybeTrusted);\n      }\n      // Default error when the $sce service has no way to make the input safe.\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    }\n\n    return { trustAs: trustAs,\n             getTrusted: getTrusted,\n             valueOf: valueOf };\n  }];\n}\n\n\n/**\n * @ngdoc provider\n * @name $sceProvider\n * @this\n *\n * @description\n *\n * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.\n * -   enable/disable Strict Contextual Escaping (SCE) in a module\n * -   override the default implementation with a custom delegate\n *\n * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.\n */\n\n/**\n * @ngdoc service\n * @name $sce\n * @kind function\n *\n * @description\n *\n * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.\n *\n * ## Strict Contextual Escaping\n *\n * Strict Contextual Escaping (SCE) is a mode in which AngularJS constrains bindings to only render\n * trusted values. Its goal is to assist in writing code in a way that (a) is secure by default, and\n * (b) makes auditing for security vulnerabilities such as XSS, clickjacking, etc. a lot easier.\n *\n * ### Overview\n *\n * To systematically block XSS security bugs, AngularJS treats all values as untrusted by default in\n * HTML or sensitive URL bindings. When binding untrusted values, AngularJS will automatically\n * run security checks on them (sanitizations, whitelists, depending on context), or throw when it\n * cannot guarantee the security of the result. That behavior depends strongly on contexts: HTML\n * can be sanitized, but template URLs cannot, for instance.\n *\n * To illustrate this, consider the `ng-bind-html` directive. It renders its value directly as HTML:\n * we call that the *context*. When given an untrusted input, AngularJS will attempt to sanitize it\n * before rendering if a sanitizer is available, and throw otherwise. To bypass sanitization and\n * render the input as-is, you will need to mark it as trusted for that context before attempting\n * to bind it.\n *\n * As of version 1.2, AngularJS ships with SCE enabled by default.\n *\n * ### In practice\n *\n * Here's an example of a binding in a privileged context:\n *\n * ```\n * <input ng-model=\"userHtml\" aria-label=\"User input\">\n * <div ng-bind-html=\"userHtml\"></div>\n * ```\n *\n * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE\n * disabled, this application allows the user to render arbitrary HTML into the DIV, which would\n * be an XSS security bug. In a more realistic example, one may be rendering user comments, blog\n * articles, etc. via bindings. (HTML is just one example of a context where rendering user\n * controlled input creates security vulnerabilities.)\n *\n * For the case of HTML, you might use a library, either on the client side, or on the server side,\n * to sanitize unsafe HTML before binding to the value and rendering it in the document.\n *\n * How would you ensure that every place that used these types of bindings was bound to a value that\n * was sanitized by your library (or returned as safe for rendering by your server?)  How can you\n * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some\n * properties/fields and forgot to update the binding to the sanitized value?\n *\n * To be secure by default, AngularJS makes sure bindings go through that sanitization, or\n * any similar validation process, unless there's a good reason to trust the given value in this\n * context.  That trust is formalized with a function call. This means that as a developer, you\n * can assume all untrusted bindings are safe. Then, to audit your code for binding security issues,\n * you just need to ensure the values you mark as trusted indeed are safe - because they were\n * received from your server, sanitized by your library, etc. You can organize your codebase to\n * help with this - perhaps allowing only the files in a specific directory to do this.\n * Ensuring that the internal API exposed by that code doesn't markup arbitrary values as safe then\n * becomes a more manageable task.\n *\n * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}\n * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to\n * build the trusted versions of your values.\n *\n * ### How does it work?\n *\n * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted\n * $sce.getTrusted(context, value)} rather than to the value directly.  Think of this function as\n * a way to enforce the required security context in your data sink. Directives use {@link\n * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs\n * the {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals. Also,\n * when binding without directives, AngularJS will understand the context of your bindings\n * automatically.\n *\n * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link\n * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly\n * simplified):\n *\n * ```\n * var ngBindHtmlDirective = ['$sce', function($sce) {\n *   return function(scope, element, attr) {\n *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {\n *       element.html(value || '');\n *     });\n *   };\n * }];\n * ```\n *\n * ### Impact on loading templates\n *\n * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as\n * `templateUrl`'s specified by {@link guide/directive directives}.\n *\n * By default, AngularJS only loads templates from the same domain and protocol as the application\n * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or\n * protocols, you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist\n * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.\n *\n * *Please note*:\n * The browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy apply in addition to this and may further restrict whether the template is successfully\n * loaded.  This means that without the right CORS policy, loading templates from a different domain\n * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some\n * browsers.\n *\n * ### This feels like too much overhead\n *\n * It's important to remember that SCE only applies to interpolation expressions.\n *\n * If your expressions are constant literals, they're automatically trusted and you don't need to\n * call `$sce.trustAs` on them (e.g.\n * `<div ng-bind-html=\"'<b>implicitly trusted</b>'\"></div>`) just works. The `$sceDelegate` will\n * also use the `$sanitize` service if it is available when binding untrusted values to\n * `$sce.HTML` context. AngularJS provides an implementation in `angular-sanitize.js`, and if you\n * wish to use it, you will also need to depend on the {@link ngSanitize `ngSanitize`} module in\n * your application.\n *\n * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load\n * templates in `ng-include` from your application's domain without having to even know about SCE.\n * It blocks loading templates from other domains or loading templates over http from an https\n * served document.  You can change these by setting your own custom {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.\n *\n * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an\n * application that's secure and can be audited to verify that with much more ease than bolting\n * security onto an application later.\n *\n * <a name=\"contexts\"></a>\n * ### What trusted context types are supported?\n *\n * | Context             | Notes          |\n * |---------------------|----------------|\n * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered, and the {@link ngSanitize.$sanitize $sanitize} service is available (implemented by the {@link ngSanitize ngSanitize} module) this will sanitize the value instead of throwing an error. |\n * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently, no bindings require this context. Feel free to use it in your own directives. |\n * | `$sce.URL`          | For URLs that are safe to follow as links.  Currently unused (`<a href=`, `<img src=`, and some others sanitize their urls and don't constitute an SCE context.) |\n * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG`, `VIDEO`, `AUDIO`, `SOURCE`, and `TRACK` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does (it's not just the URL that matters, but also what is at the end of it), and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. |\n * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently, no bindings require this context.  Feel free to use it in your own directives. |\n *\n *\n * Be aware that `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them\n * through {@link ng.$sce#getTrusted $sce.getTrusted}. There's no CSS-, URL-, or JS-context bindings\n * in AngularJS currently, so their corresponding `$sce.trustAs` functions aren't useful yet. This\n * might evolve.\n *\n * ### Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name=\"resourceUrlPatternItem\"></a>\n *\n *  Each element in these arrays must be one of the following:\n *\n *  - **'self'**\n *    - The special **string**, `'self'`, can be used to match against all URLs of the **same\n *      domain** as the application document using the **same protocol**.\n *  - **String** (except the special value `'self'`)\n *    - The string is matched against the full *normalized / absolute URL* of the resource\n *      being tested (substring matches are not good enough.)\n *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters\n *      match themselves.\n *    - `*`: matches zero or more occurrences of any character other than one of the following 6\n *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'.  It's a useful wildcard for use\n *      in a whitelist.\n *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not\n *      appropriate for use in a scheme, domain, etc. as it would match too much.  (e.g.\n *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might\n *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.\n *      http://foo.example.com/templates/**).\n *  - **RegExp** (*see caveat below*)\n *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax\n *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to\n *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should\n *      have good test coverage).  For instance, the use of `.` in the regex is correct only in a\n *      small number of cases.  A `.` character in the regex used when matching the scheme or a\n *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It\n *      is highly recommended to use the string patterns and only fall back to regular expressions\n *      as a last resort.\n *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is\n *      matched against the **entire** *normalized / absolute URL* of the resource being tested\n *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags\n *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.\n *    - If you are generating your JavaScript from some other templating engine (not\n *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),\n *      remember to escape your regular expression (and be aware that you might need more than\n *      one level of escaping depending on your templating engine and the way you interpolated\n *      the value.)  Do make use of your platform's escaping mechanism as it might be good\n *      enough before coding your own.  E.g. Ruby has\n *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)\n *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).\n *      Javascript lacks a similar built in function for escaping.  Take a look at Google\n *      Closure library's [goog.string.regExpEscape(s)](\n *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.\n *\n * ### Show me an example using SCE.\n *\n * <example module=\"mySceApp\" deps=\"angular-sanitize.js\" name=\"sce-service\">\n * <file name=\"index.html\">\n *   <div ng-controller=\"AppController as myCtrl\">\n *     <i ng-bind-html=\"myCtrl.explicitlyTrustedHtml\" id=\"explicitlyTrustedHtml\"></i><br><br>\n *     <b>User comments</b><br>\n *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when\n *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an\n *     exploit.\n *     <div class=\"well\">\n *       <div ng-repeat=\"userComment in myCtrl.userComments\">\n *         <b>{{userComment.name}}</b>:\n *         <span ng-bind-html=\"userComment.htmlComment\" class=\"htmlComment\"></span>\n *         <br>\n *       </div>\n *     </div>\n *   </div>\n * </file>\n *\n * <file name=\"script.js\">\n *   angular.module('mySceApp', ['ngSanitize'])\n *     .controller('AppController', ['$http', '$templateCache', '$sce',\n *       function AppController($http, $templateCache, $sce) {\n *         var self = this;\n *         $http.get('test_data.json', {cache: $templateCache}).then(function(response) {\n *           self.userComments = response.data;\n *         });\n *         self.explicitlyTrustedHtml = $sce.trustAsHtml(\n *             '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *             'sanitization.&quot;\">Hover over this text.</span>');\n *       }]);\n * </file>\n *\n * <file name=\"test_data.json\">\n * [\n *   { \"name\": \"Alice\",\n *     \"htmlComment\":\n *         \"<span onmouseover='this.textContent=\\\"PWN3D!\\\"'>Is <i>anyone</i> reading this?</span>\"\n *   },\n *   { \"name\": \"Bob\",\n *     \"htmlComment\": \"<i>Yes!</i>  Am I the only other one?\"\n *   }\n * ]\n * </file>\n *\n * <file name=\"protractor.js\" type=\"protractor\">\n *   describe('SCE doc demo', function() {\n *     it('should sanitize untrusted values', function() {\n *       expect(element.all(by.css('.htmlComment')).first().getAttribute('innerHTML'))\n *           .toBe('<span>Is <i>anyone</i> reading this?</span>');\n *     });\n *\n *     it('should NOT sanitize explicitly trusted values', function() {\n *       expect(element(by.id('explicitlyTrustedHtml')).getAttribute('innerHTML')).toBe(\n *           '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *           'sanitization.&quot;\">Hover over this text.</span>');\n *     });\n *   });\n * </file>\n * </example>\n *\n *\n *\n * ## Can I disable SCE completely?\n *\n * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits\n * for little coding overhead.  It will be much harder to take an SCE disabled application and\n * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE\n * for cases where you have a lot of existing code that was written before SCE was introduced and\n * you're migrating them a module at a time. Also do note that this is an app-wide setting, so if\n * you are writing a library, you will cause security bugs applications using it.\n *\n * That said, here's how you can completely disable SCE:\n *\n * ```\n * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {\n *   // Completely disable SCE.  For demonstration purposes only!\n *   // Do not use in new projects or libraries.\n *   $sceProvider.enabled(false);\n * });\n * ```\n *\n */\n\nfunction $SceProvider() {\n  var enabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $sceProvider#enabled\n   * @kind function\n   *\n   * @param {boolean=} value If provided, then enables/disables SCE application-wide.\n   * @return {boolean} True if SCE is enabled, false otherwise.\n   *\n   * @description\n   * Enables/disables SCE and returns the current value.\n   */\n  this.enabled = function(value) {\n    if (arguments.length) {\n      enabled = !!value;\n    }\n    return enabled;\n  };\n\n\n  /* Design notes on the default implementation for SCE.\n   *\n   * The API contract for the SCE delegate\n   * -------------------------------------\n   * The SCE delegate object must provide the following 3 methods:\n   *\n   * - trustAs(contextEnum, value)\n   *     This method is used to tell the SCE service that the provided value is OK to use in the\n   *     contexts specified by contextEnum.  It must return an object that will be accepted by\n   *     getTrusted() for a compatible contextEnum and return this value.\n   *\n   * - valueOf(value)\n   *     For values that were not produced by trustAs(), return them as is.  For values that were\n   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if\n   *     trustAs is wrapping the given values into some type, this operation unwraps it when given\n   *     such a value.\n   *\n   * - getTrusted(contextEnum, value)\n   *     This function should return the a value that is safe to use in the context specified by\n   *     contextEnum or throw and exception otherwise.\n   *\n   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be\n   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For\n   * instance, an implementation could maintain a registry of all trusted objects by context.  In\n   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would\n   * return the same object passed in if it was found in the registry under a compatible context or\n   * throw an exception otherwise.  An implementation might only wrap values some of the time based\n   * on some criteria.  getTrusted() might return a value and not throw an exception for special\n   * constants or objects even if not wrapped.  All such implementations fulfill this contract.\n   *\n   *\n   * A note on the inheritance model for SCE contexts\n   * ------------------------------------------------\n   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This\n   * is purely an implementation details.\n   *\n   * The contract is simply this:\n   *\n   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)\n   *     will also succeed.\n   *\n   * Inheritance happens to capture this in a natural way. In some future, we may not use\n   * inheritance anymore. That is OK because no code outside of sce.js and sceSpecs.js would need to\n   * be aware of this detail.\n   */\n\n  this.$get = ['$parse', '$sceDelegate', function(\n                $parse,   $sceDelegate) {\n    // Support: IE 9-11 only\n    // Prereq: Ensure that we're not running in IE<11 quirks mode.  In that mode, IE < 11 allow\n    // the \"expression(javascript expression)\" syntax which is insecure.\n    if (enabled && msie < 8) {\n      throw $sceMinErr('iequirks',\n        'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' +\n        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +\n        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');\n    }\n\n    var sce = shallowCopy(SCE_CONTEXTS);\n\n    /**\n     * @ngdoc method\n     * @name $sce#isEnabled\n     * @kind function\n     *\n     * @return {Boolean} True if SCE is enabled, false otherwise.  If you want to set the value, you\n     *     have to do it at module config time on {@link ng.$sceProvider $sceProvider}.\n     *\n     * @description\n     * Returns a boolean indicating if SCE is enabled.\n     */\n    sce.isEnabled = function() {\n      return enabled;\n    };\n    sce.trustAs = $sceDelegate.trustAs;\n    sce.getTrusted = $sceDelegate.getTrusted;\n    sce.valueOf = $sceDelegate.valueOf;\n\n    if (!enabled) {\n      sce.trustAs = sce.getTrusted = function(type, value) { return value; };\n      sce.valueOf = identity;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAs\n     *\n     * @description\n     * Converts AngularJS {@link guide/expression expression} into a function.  This is like {@link\n     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it\n     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,\n     * *result*)}\n     *\n     * @param {string} type The SCE context in which this result will be used.\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n    sce.parseAs = function sceParseAs(type, expr) {\n      var parsed = $parse(expr);\n      if (parsed.literal && parsed.constant) {\n        return parsed;\n      } else {\n        return $parse(expr, function(value) {\n          return sce.getTrusted(type, value);\n        });\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAs\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}. As such, returns a\n     * wrapped object that represents your value, and the trust you have in its safety for the given\n     * context. AngularJS can then use that value as-is in bindings of the specified secure context.\n     * This is used in bindings for `ng-bind-html`, `ng-include`, and most `src` attribute\n     * interpolations. See {@link ng.$sce $sce} for strict contextual escaping.\n     *\n     * @param {string} type The context in which this value is safe for use, e.g. `$sce.URL`,\n     *     `$sce.RESOURCE_URL`, `$sce.HTML`, `$sce.JS` or `$sce.CSS`.\n     *\n     * @param {*} value The value that that should be considered trusted.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in the context you specified.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsHtml(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.HTML` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.HTML` context (like `ng-bind-html`).\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsCss(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.CSS, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.CSS` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant\n     *     of your `value` in `$sce.CSS` context. This context is currently unused, so there are\n     *     almost no reasons to use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.URL` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.URL` context. That context is currently unused, so there are almost no reasons\n     *     to use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.RESOURCE_URL` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.RESOURCE_URL` context (template URLs in `ng-include`, most `src` attribute\n     *     bindings, ...)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsJs(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.JS` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.JS` context. That context is currently unused, so there are almost no reasons to\n     *     use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrusted\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,\n     * takes any input, and either returns a value that's safe to use in the specified context,\n     * or throws an exception. This function is aware of trusted values created by the `trustAs`\n     * function and its shorthands, and when contexts are appropriate, returns the unwrapped value\n     * as-is. Finally, this function can also throw when there is no way to turn `maybeTrusted` in a\n     * safe value (e.g., no sanitization is available or possible.)\n     *\n     * @param {string} type The context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs\n     *     `$sce.trustAs`} call, or anything else (which will not be considered trusted.)\n     * @return {*} A version of the value that's safe to use in the given context, or throws an\n     *     exception if this is impossible.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedHtml(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.HTML, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedCss\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedCss(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.CSS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedJs\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedJs(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.JS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsHtml(expression string)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsCss(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsJs(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    // Shorthand delegations.\n    var parse = sce.parseAs,\n        getTrusted = sce.getTrusted,\n        trustAs = sce.trustAs;\n\n    forEach(SCE_CONTEXTS, function(enumValue, name) {\n      var lName = lowercase(name);\n      sce[snakeToCamel('parse_as_' + lName)] = function(expr) {\n        return parse(enumValue, expr);\n      };\n      sce[snakeToCamel('get_trusted_' + lName)] = function(value) {\n        return getTrusted(enumValue, value);\n      };\n      sce[snakeToCamel('trust_as_' + lName)] = function(value) {\n        return trustAs(enumValue, value);\n      };\n    });\n\n    return sce;\n  }];\n}\n\n/* exported $SnifferProvider */\n\n/**\n * !!! This is an undocumented \"private\" service !!!\n *\n * @name $sniffer\n * @requires $window\n * @requires $document\n * @this\n *\n * @property {boolean} history Does the browser support html5 history api ?\n * @property {boolean} transitions Does the browser support CSS transition events ?\n * @property {boolean} animations Does the browser support CSS animation events ?\n *\n * @description\n * This is very simple implementation of testing browser's features.\n */\nfunction $SnifferProvider() {\n  this.$get = ['$window', '$document', function($window, $document) {\n    var eventSupport = {},\n        // Chrome Packaged Apps are not allowed to access `history.pushState`.\n        // If not sandboxed, they can be detected by the presence of `chrome.app.runtime`\n        // (see https://developer.chrome.com/apps/api_index). If sandboxed, they can be detected by\n        // the presence of an extension runtime ID and the absence of other Chrome runtime APIs\n        // (see https://developer.chrome.com/apps/manifest/sandbox).\n        // (NW.js apps have access to Chrome APIs, but do support `history`.)\n        isNw = $window.nw && $window.nw.process,\n        isChromePackagedApp =\n            !isNw &&\n            $window.chrome &&\n            ($window.chrome.app && $window.chrome.app.runtime ||\n                !$window.chrome.app && $window.chrome.runtime && $window.chrome.runtime.id),\n        hasHistoryPushState = !isChromePackagedApp && $window.history && $window.history.pushState,\n        android =\n          toInt((/android (\\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),\n        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),\n        document = $document[0] || {},\n        bodyStyle = document.body && document.body.style,\n        transitions = false,\n        animations = false;\n\n    if (bodyStyle) {\n      // Support: Android <5, Blackberry Browser 10, default Chrome in Android 4.4.x\n      // Mentioned browsers need a -webkit- prefix for transitions & animations.\n      transitions = !!('transition' in bodyStyle || 'webkitTransition' in bodyStyle);\n      animations = !!('animation' in bodyStyle || 'webkitAnimation' in bodyStyle);\n    }\n\n\n    return {\n      // Android has history.pushState, but it does not update location correctly\n      // so let's not use the history API at all.\n      // http://code.google.com/p/android/issues/detail?id=17471\n      // https://github.com/angular/angular.js/issues/904\n\n      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has\n      // so let's not use the history API also\n      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined\n      history: !!(hasHistoryPushState && !(android < 4) && !boxee),\n      hasEvent: function(event) {\n        // Support: IE 9-11 only\n        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have\n        // it. In particular the event is not fired when backspace or delete key are pressed or\n        // when cut operation is performed.\n        // IE10+ implements 'input' event but it erroneously fires under various situations,\n        // e.g. when placeholder changes, or a form is focused.\n        if (event === 'input' && msie) return false;\n\n        if (isUndefined(eventSupport[event])) {\n          var divElm = document.createElement('div');\n          eventSupport[event] = 'on' + event in divElm;\n        }\n\n        return eventSupport[event];\n      },\n      csp: csp(),\n      transitions: transitions,\n      animations: animations,\n      android: android\n    };\n  }];\n}\n\nvar $templateRequestMinErr = minErr('$compile');\n\n/**\n * @ngdoc provider\n * @name $templateRequestProvider\n * @this\n *\n * @description\n * Used to configure the options passed to the {@link $http} service when making a template request.\n *\n * For example, it can be used for specifying the \"Accept\" header that is sent to the server, when\n * requesting a template.\n */\nfunction $TemplateRequestProvider() {\n\n  var httpOptions;\n\n  /**\n   * @ngdoc method\n   * @name $templateRequestProvider#httpOptions\n   * @description\n   * The options to be passed to the {@link $http} service when making the request.\n   * You can use this to override options such as the \"Accept\" header for template requests.\n   *\n   * The {@link $templateRequest} will set the `cache` and the `transformResponse` properties of the\n   * options if not overridden here.\n   *\n   * @param {string=} value new value for the {@link $http} options.\n   * @returns {string|self} Returns the {@link $http} options when used as getter and self if used as setter.\n   */\n  this.httpOptions = function(val) {\n    if (val) {\n      httpOptions = val;\n      return this;\n    }\n    return httpOptions;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $templateRequest\n   *\n   * @description\n   * The `$templateRequest` service runs security checks then downloads the provided template using\n   * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request\n   * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the\n   * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the\n   * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted\n   * when `tpl` is of type string and `$templateCache` has the matching entry.\n   *\n   * If you want to pass custom options to the `$http` service, such as setting the Accept header you\n   * can configure this via {@link $templateRequestProvider#httpOptions}.\n   *\n   * `$templateRequest` is used internally by {@link $compile}, {@link ngRoute.$route}, and directives such\n   * as {@link ngInclude} to download and cache templates.\n   *\n   * 3rd party modules should use `$templateRequest` if their services or directives are loading\n   * templates.\n   *\n   * @param {string|TrustedResourceUrl} tpl The HTTP request template URL\n   * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty\n   *\n   * @return {Promise} a promise for the HTTP response data of the given URL.\n   *\n   * @property {number} totalPendingRequests total amount of pending template requests being downloaded.\n   */\n  this.$get = ['$exceptionHandler', '$templateCache', '$http', '$q', '$sce',\n    function($exceptionHandler, $templateCache, $http, $q, $sce) {\n\n      function handleRequestFn(tpl, ignoreRequestError) {\n        handleRequestFn.totalPendingRequests++;\n\n        // We consider the template cache holds only trusted templates, so\n        // there's no need to go through whitelisting again for keys that already\n        // are included in there. This also makes AngularJS accept any script\n        // directive, no matter its name. However, we still need to unwrap trusted\n        // types.\n        if (!isString(tpl) || isUndefined($templateCache.get(tpl))) {\n          tpl = $sce.getTrustedResourceUrl(tpl);\n        }\n\n        var transformResponse = $http.defaults && $http.defaults.transformResponse;\n\n        if (isArray(transformResponse)) {\n          transformResponse = transformResponse.filter(function(transformer) {\n            return transformer !== defaultHttpResponseTransform;\n          });\n        } else if (transformResponse === defaultHttpResponseTransform) {\n          transformResponse = null;\n        }\n\n        return $http.get(tpl, extend({\n            cache: $templateCache,\n            transformResponse: transformResponse\n          }, httpOptions))\n          .finally(function() {\n            handleRequestFn.totalPendingRequests--;\n          })\n          .then(function(response) {\n            $templateCache.put(tpl, response.data);\n            return response.data;\n          }, handleError);\n\n        function handleError(resp) {\n          if (!ignoreRequestError) {\n            resp = $templateRequestMinErr('tpload',\n                'Failed to load template: {0} (HTTP status: {1} {2})',\n                tpl, resp.status, resp.statusText);\n\n            $exceptionHandler(resp);\n          }\n\n          return $q.reject(resp);\n        }\n      }\n\n      handleRequestFn.totalPendingRequests = 0;\n\n      return handleRequestFn;\n    }\n  ];\n}\n\n/** @this */\nfunction $$TestabilityProvider() {\n  this.$get = ['$rootScope', '$browser', '$location',\n       function($rootScope,   $browser,   $location) {\n\n    /**\n     * @name $testability\n     *\n     * @description\n     * The private $$testability service provides a collection of methods for use when debugging\n     * or by automated test and debugging tools.\n     */\n    var testability = {};\n\n    /**\n     * @name $$testability#findBindings\n     *\n     * @description\n     * Returns an array of elements that are bound (via ng-bind or {{}})\n     * to expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The binding expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression. Filters and whitespace are ignored.\n     */\n    testability.findBindings = function(element, expression, opt_exactMatch) {\n      var bindings = element.getElementsByClassName('ng-binding');\n      var matches = [];\n      forEach(bindings, function(binding) {\n        var dataBinding = angular.element(binding).data('$binding');\n        if (dataBinding) {\n          forEach(dataBinding, function(bindingName) {\n            if (opt_exactMatch) {\n              var matcher = new RegExp('(^|\\\\s)' + escapeForRegexp(expression) + '(\\\\s|\\\\||$)');\n              if (matcher.test(bindingName)) {\n                matches.push(binding);\n              }\n            } else {\n              if (bindingName.indexOf(expression) !== -1) {\n                matches.push(binding);\n              }\n            }\n          });\n        }\n      });\n      return matches;\n    };\n\n    /**\n     * @name $$testability#findModels\n     *\n     * @description\n     * Returns an array of elements that are two-way found via ng-model to\n     * expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The model expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression.\n     */\n    testability.findModels = function(element, expression, opt_exactMatch) {\n      var prefixes = ['ng-', 'data-ng-', 'ng\\\\:'];\n      for (var p = 0; p < prefixes.length; ++p) {\n        var attributeEquals = opt_exactMatch ? '=' : '*=';\n        var selector = '[' + prefixes[p] + 'model' + attributeEquals + '\"' + expression + '\"]';\n        var elements = element.querySelectorAll(selector);\n        if (elements.length) {\n          return elements;\n        }\n      }\n    };\n\n    /**\n     * @name $$testability#getLocation\n     *\n     * @description\n     * Shortcut for getting the location in a browser agnostic way. Returns\n     *     the path, search, and hash. (e.g. /path?a=b#hash)\n     */\n    testability.getLocation = function() {\n      return $location.url();\n    };\n\n    /**\n     * @name $$testability#setLocation\n     *\n     * @description\n     * Shortcut for navigating to a location without doing a full page reload.\n     *\n     * @param {string} url The location url (path, search and hash,\n     *     e.g. /path?a=b#hash) to go to.\n     */\n    testability.setLocation = function(url) {\n      if (url !== $location.url()) {\n        $location.url(url);\n        $rootScope.$digest();\n      }\n    };\n\n    /**\n     * @name $$testability#whenStable\n     *\n     * @description\n     * Calls the callback when $timeout and $http requests are completed.\n     *\n     * @param {function} callback\n     */\n    testability.whenStable = function(callback) {\n      $browser.notifyWhenNoOutstandingRequests(callback);\n    };\n\n    return testability;\n  }];\n}\n\n/** @this */\nfunction $TimeoutProvider() {\n  this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler',\n       function($rootScope,   $browser,   $q,   $$q,   $exceptionHandler) {\n\n    var deferreds = {};\n\n\n    /**\n     * @ngdoc service\n     * @name $timeout\n     *\n     * @description\n     * AngularJS's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch\n     * block and delegates any exceptions to\n     * {@link ng.$exceptionHandler $exceptionHandler} service.\n     *\n     * The return value of calling `$timeout` is a promise, which will be resolved when\n     * the delay has passed and the timeout function, if provided, is executed.\n     *\n     * To cancel a timeout request, call `$timeout.cancel(promise)`.\n     *\n     * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to\n     * synchronously flush the queue of deferred functions.\n     *\n     * If you only want a promise that will be resolved after some specified delay\n     * then you can call `$timeout` without the `fn` function.\n     *\n     * @param {function()=} fn A function, whose execution should be delayed.\n     * @param {number=} [delay=0] Delay in milliseconds.\n     * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n     *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n     * @param {...*=} Pass additional parameters to the executed function.\n     * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise\n     *   will be resolved with the return value of the `fn` function.\n     *\n     */\n    function timeout(fn, delay, invokeApply) {\n      if (!isFunction(fn)) {\n        invokeApply = delay;\n        delay = fn;\n        fn = noop;\n      }\n\n      var args = sliceArgs(arguments, 3),\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise,\n          timeoutId;\n\n      timeoutId = $browser.defer(function() {\n        try {\n          deferred.resolve(fn.apply(null, args));\n        } catch (e) {\n          deferred.reject(e);\n          $exceptionHandler(e);\n        } finally {\n          delete deferreds[promise.$$timeoutId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }, delay);\n\n      promise.$$timeoutId = timeoutId;\n      deferreds[timeoutId] = deferred;\n\n      return promise;\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $timeout#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`. As a result of this, the promise will be\n     * resolved with a rejection.\n     *\n     * @param {Promise=} promise Promise returned by the `$timeout` function.\n     * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n     *   canceled.\n     */\n    timeout.cancel = function(promise) {\n      if (promise && promise.$$timeoutId in deferreds) {\n        // Timeout cancels should not report an unhandled promise.\n        markQExceptionHandled(deferreds[promise.$$timeoutId].promise);\n        deferreds[promise.$$timeoutId].reject('canceled');\n        delete deferreds[promise.$$timeoutId];\n        return $browser.defer.cancel(promise.$$timeoutId);\n      }\n      return false;\n    };\n\n    return timeout;\n  }];\n}\n\n// NOTE:  The usage of window and document instead of $window and $document here is\n// deliberate.  This service depends on the specific behavior of anchor nodes created by the\n// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and\n// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it\n// doesn't know about mocked locations and resolves URLs to the real document - which is\n// exactly the behavior needed here.  There is little value is mocking these out for this\n// service.\nvar urlParsingNode = window.document.createElement('a');\nvar originUrl = urlResolve(window.location.href);\n\n\n/**\n *\n * Implementation Notes for non-IE browsers\n * ----------------------------------------\n * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,\n * results both in the normalizing and parsing of the URL.  Normalizing means that a relative\n * URL will be resolved into an absolute URL in the context of the application document.\n * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related\n * properties are all populated to reflect the normalized URL.  This approach has wide\n * compatibility - Safari 1+, Mozilla 1+ etc.  See\n * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *\n * Implementation Notes for IE\n * ---------------------------\n * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other\n * browsers.  However, the parsed components will not be set if the URL assigned did not specify\n * them.  (e.g. if you assign a.href = \"foo\", then a.protocol, a.host, etc. will be empty.)  We\n * work around that by performing the parsing in a 2nd step by taking a previously normalized\n * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the\n * properties such as protocol, hostname, port, etc.\n *\n * References:\n *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement\n *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *   http://url.spec.whatwg.org/#urlutils\n *   https://github.com/angular/angular.js/pull/2902\n *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/\n *\n * @kind function\n * @param {string|object} url The URL to be parsed. If `url` is not a string, it will be returned\n *     unchanged.\n * @description Normalizes and parses a URL.\n * @returns {object} Returns the normalized URL as a dictionary.\n *\n *   | member name   | Description    |\n *   |---------------|----------------|\n *   | href          | A normalized version of the provided URL if it was not an absolute URL |\n *   | protocol      | The protocol including the trailing colon                              |\n *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |\n *   | search        | The search params, minus the question mark                             |\n *   | hash          | The hash string, minus the hash symbol\n *   | hostname      | The hostname\n *   | port          | The port, without \":\"\n *   | pathname      | The pathname, beginning with \"/\"\n *\n */\nfunction urlResolve(url) {\n  if (!isString(url)) return url;\n\n  var href = url;\n\n  // Support: IE 9-11 only\n  if (msie) {\n    // Normalize before parse.  Refer Implementation Notes on why this is\n    // done in two steps on IE.\n    urlParsingNode.setAttribute('href', href);\n    href = urlParsingNode.href;\n  }\n\n  urlParsingNode.setAttribute('href', href);\n\n  // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n  return {\n    href: urlParsingNode.href,\n    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n    host: urlParsingNode.host,\n    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n    hostname: urlParsingNode.hostname,\n    port: urlParsingNode.port,\n    pathname: (urlParsingNode.pathname.charAt(0) === '/')\n      ? urlParsingNode.pathname\n      : '/' + urlParsingNode.pathname\n  };\n}\n\n/**\n * Parse a request URL and determine whether this is a same-origin request as the application\n * document.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the request is for the same origin as the application document.\n */\nfunction urlIsSameOrigin(requestUrl) {\n  return urlsAreSameOrigin(requestUrl, originUrl);\n}\n\n/**\n * Create a function that can check a URL's origin against a list of allowed/whitelisted origins.\n * The current location's origin is implicitly trusted.\n *\n * @param {string[]} whitelistedOriginUrls - A list of URLs (strings), whose origins are trusted.\n *\n * @returns {Function} - A function that receives a URL (string or parsed URL object) and returns\n *     whether it is of an allowed origin.\n */\nfunction urlIsAllowedOriginFactory(whitelistedOriginUrls) {\n  var parsedAllowedOriginUrls = [originUrl].concat(whitelistedOriginUrls.map(urlResolve));\n\n  /**\n   * Check whether the specified URL (string or parsed URL object) has an origin that is allowed\n   * based on a list of whitelisted-origin URLs. The current location's origin is implicitly\n   * trusted.\n   *\n   * @param {string|Object} requestUrl - The URL to be checked (provided as a string that will be\n   *     resolved or a parsed URL object).\n   *\n   * @returns {boolean} - Whether the specified URL is of an allowed origin.\n   */\n  return function urlIsAllowedOrigin(requestUrl) {\n    var parsedUrl = urlResolve(requestUrl);\n    return parsedAllowedOriginUrls.some(urlsAreSameOrigin.bind(null, parsedUrl));\n  };\n}\n\n/**\n * Determine if two URLs share the same origin.\n *\n * @param {string|Object} url1 - First URL to compare as a string or a normalized URL in the form of\n *     a dictionary object returned by `urlResolve()`.\n * @param {string|object} url2 - Second URL to compare as a string or a normalized URL in the form\n *     of a dictionary object returned by `urlResolve()`.\n *\n * @returns {boolean} - True if both URLs have the same origin, and false otherwise.\n */\nfunction urlsAreSameOrigin(url1, url2) {\n  url1 = urlResolve(url1);\n  url2 = urlResolve(url2);\n\n  return (url1.protocol === url2.protocol &&\n          url1.host === url2.host);\n}\n\n/**\n * @ngdoc service\n * @name $window\n * @this\n *\n * @description\n * A reference to the browser's `window` object. While `window`\n * is globally available in JavaScript, it causes testability problems, because\n * it is a global variable. In AngularJS we always refer to it through the\n * `$window` service, so it may be overridden, removed or mocked for testing.\n *\n * Expressions, like the one defined for the `ngClick` directive in the example\n * below, are evaluated with respect to the current scope.  Therefore, there is\n * no risk of inadvertently coding in a dependency on a global value in such an\n * expression.\n *\n * @example\n   <example module=\"windowExample\" name=\"window-service\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('windowExample', [])\n           .controller('ExampleController', ['$scope', '$window', function($scope, $window) {\n             $scope.greeting = 'Hello, World!';\n             $scope.doGreeting = function(greeting) {\n               $window.alert(greeting);\n             };\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"text\" ng-model=\"greeting\" aria-label=\"greeting\" />\n         <button ng-click=\"doGreeting(greeting)\">ALERT</button>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n      it('should display the greeting in the input box', function() {\n       element(by.model('greeting')).sendKeys('Hello, E2E Tests');\n       // If we click the button it will block the test runner\n       // element(':button').click();\n      });\n     </file>\n   </example>\n */\nfunction $WindowProvider() {\n  this.$get = valueFn(window);\n}\n\n/**\n * @name $$cookieReader\n * @requires $document\n *\n * @description\n * This is a private service for reading cookies used by $http and ngCookies\n *\n * @return {Object} a key/value map of the current cookies\n */\nfunction $$CookieReader($document) {\n  var rawDocument = $document[0] || {};\n  var lastCookies = {};\n  var lastCookieString = '';\n\n  function safeGetCookie(rawDocument) {\n    try {\n      return rawDocument.cookie || '';\n    } catch (e) {\n      return '';\n    }\n  }\n\n  function safeDecodeURIComponent(str) {\n    try {\n      return decodeURIComponent(str);\n    } catch (e) {\n      return str;\n    }\n  }\n\n  return function() {\n    var cookieArray, cookie, i, index, name;\n    var currentCookieString = safeGetCookie(rawDocument);\n\n    if (currentCookieString !== lastCookieString) {\n      lastCookieString = currentCookieString;\n      cookieArray = lastCookieString.split('; ');\n      lastCookies = {};\n\n      for (i = 0; i < cookieArray.length; i++) {\n        cookie = cookieArray[i];\n        index = cookie.indexOf('=');\n        if (index > 0) { //ignore nameless cookies\n          name = safeDecodeURIComponent(cookie.substring(0, index));\n          // the first value that is seen for a cookie is the most\n          // specific one.  values for the same cookie name that\n          // follow are for less specific paths.\n          if (isUndefined(lastCookies[name])) {\n            lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1));\n          }\n        }\n      }\n    }\n    return lastCookies;\n  };\n}\n\n$$CookieReader.$inject = ['$document'];\n\n/** @this */\nfunction $$CookieReaderProvider() {\n  this.$get = $$CookieReader;\n}\n\n/* global currencyFilter: true,\n dateFilter: true,\n filterFilter: true,\n jsonFilter: true,\n limitToFilter: true,\n lowercaseFilter: true,\n numberFilter: true,\n orderByFilter: true,\n uppercaseFilter: true,\n */\n\n/**\n * @ngdoc provider\n * @name $filterProvider\n * @description\n *\n * Filters are just functions which transform input to an output. However filters need to be\n * Dependency Injected. To achieve this a filter definition consists of a factory function which is\n * annotated with dependencies and is responsible for creating a filter function.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n * (`myapp_subsection_filterx`).\n * </div>\n *\n * ```js\n *   // Filter registration\n *   function MyModule($provide, $filterProvider) {\n *     // create a service to demonstrate injection (not always needed)\n *     $provide.value('greet', function(name){\n *       return 'Hello ' + name + '!';\n *     });\n *\n *     // register a filter factory which uses the\n *     // greet service to demonstrate DI.\n *     $filterProvider.register('greet', function(greet){\n *       // return the filter function which uses the greet service\n *       // to generate salutation\n *       return function(text) {\n *         // filters need to be forgiving so check input validity\n *         return text && greet(text) || text;\n *       };\n *     });\n *   }\n * ```\n *\n * The filter function is registered with the `$injector` under the filter name suffix with\n * `Filter`.\n *\n * ```js\n *   it('should be the same instance', inject(\n *     function($filterProvider) {\n *       $filterProvider.register('reverse', function(){\n *         return ...;\n *       });\n *     },\n *     function($filter, reverseFilter) {\n *       expect($filter('reverse')).toBe(reverseFilter);\n *     });\n * ```\n *\n *\n * For more information about how AngularJS filters work, and how to create your own filters, see\n * {@link guide/filter Filters} in the AngularJS Developer Guide.\n */\n\n/**\n * @ngdoc service\n * @name $filter\n * @kind function\n * @description\n * Filters are used for formatting data displayed to the user.\n *\n * They can be used in view templates, controllers or services. AngularJS comes\n * with a collection of [built-in filters](api/ng/filter), but it is easy to\n * define your own as well.\n *\n * The general syntax in templates is as follows:\n *\n * ```html\n * {{ expression [| filter_name[:parameter_value] ... ] }}\n * ```\n *\n * @param {String} name Name of the filter function to retrieve\n * @return {Function} the filter function\n * @example\n   <example name=\"$filter\" module=\"filterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainCtrl\">\n        <h3>{{ originalText }}</h3>\n        <h3>{{ filteredText }}</h3>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n      angular.module('filterExample', [])\n      .controller('MainCtrl', function($scope, $filter) {\n        $scope.originalText = 'hello';\n        $scope.filteredText = $filter('uppercase')($scope.originalText);\n      });\n     </file>\n   </example>\n  */\n$FilterProvider.$inject = ['$provide'];\n/** @this */\nfunction $FilterProvider($provide) {\n  var suffix = 'Filter';\n\n  /**\n   * @ngdoc method\n   * @name $filterProvider#register\n   * @param {string|Object} name Name of the filter function, or an object map of filters where\n   *    the keys are the filter names and the values are the filter factories.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n   *    Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n   *    your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n   *    (`myapp_subsection_filterx`).\n   *    </div>\n    * @param {Function} factory If the first argument was a string, a factory function for the filter to be registered.\n   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map\n   *    of the registered filter instances.\n   */\n  function register(name, factory) {\n    if (isObject(name)) {\n      var filters = {};\n      forEach(name, function(filter, key) {\n        filters[key] = register(key, filter);\n      });\n      return filters;\n    } else {\n      return $provide.factory(name + suffix, factory);\n    }\n  }\n  this.register = register;\n\n  this.$get = ['$injector', function($injector) {\n    return function(name) {\n      return $injector.get(name + suffix);\n    };\n  }];\n\n  ////////////////////////////////////////\n\n  /* global\n    currencyFilter: false,\n    dateFilter: false,\n    filterFilter: false,\n    jsonFilter: false,\n    limitToFilter: false,\n    lowercaseFilter: false,\n    numberFilter: false,\n    orderByFilter: false,\n    uppercaseFilter: false\n  */\n\n  register('currency', currencyFilter);\n  register('date', dateFilter);\n  register('filter', filterFilter);\n  register('json', jsonFilter);\n  register('limitTo', limitToFilter);\n  register('lowercase', lowercaseFilter);\n  register('number', numberFilter);\n  register('orderBy', orderByFilter);\n  register('uppercase', uppercaseFilter);\n}\n\n/**\n * @ngdoc filter\n * @name filter\n * @kind function\n *\n * @description\n * Selects a subset of items from `array` and returns it as a new array.\n *\n * @param {Array} array The source array.\n * <div class=\"alert alert-info\">\n *   **Note**: If the array contains objects that reference themselves, filtering is not possible.\n * </div>\n * @param {string|Object|function()} expression The predicate to be used for selecting items from\n *   `array`.\n *\n *   Can be one of:\n *\n *   - `string`: The string is used for matching against the contents of the `array`. All strings or\n *     objects with string properties in `array` that match this string will be returned. This also\n *     applies to nested object properties.\n *     The predicate can be negated by prefixing the string with `!`.\n *\n *   - `Object`: A pattern object can be used to filter specific properties on objects contained\n *     by `array`. For example `{name:\"M\", phone:\"1\"}` predicate will return an array of items\n *     which have property `name` containing \"M\" and property `phone` containing \"1\". A special\n *     property name (`$` by default) can be used (e.g. as in `{$: \"text\"}`) to accept a match\n *     against any property of the object or its nested object properties. That's equivalent to the\n *     simple substring match with a `string` as described above. The special property name can be\n *     overwritten, using the `anyPropertyKey` parameter.\n *     The predicate can be negated by prefixing the string with `!`.\n *     For example `{name: \"!M\"}` predicate will return an array of items which have property `name`\n *     not containing \"M\".\n *\n *     Note that a named property will match properties on the same level only, while the special\n *     `$` property will match properties on the same level or deeper. E.g. an array item like\n *     `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but\n *     **will** be matched by `{$: 'John'}`.\n *\n *   - `function(value, index, array)`: A predicate function can be used to write arbitrary filters.\n *     The function is called for each element of the array, with the element, its index, and\n *     the entire array itself as arguments.\n *\n *     The final result is an array of those elements that the predicate returned true for.\n *\n * @param {function(actual, expected)|true|false} [comparator] Comparator which is used in\n *     determining if values retrieved using `expression` (when it is not a function) should be\n *     considered a match based on the expected value (from the filter expression) and actual\n *     value (from the object in the array).\n *\n *   Can be one of:\n *\n *   - `function(actual, expected)`:\n *     The function will be given the object value and the predicate value to compare and\n *     should return true if both values should be considered equal.\n *\n *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`.\n *     This is essentially strict comparison of expected and actual.\n *\n *   - `false`: A short hand for a function which will look for a substring match in a case\n *     insensitive way. Primitive values are converted to strings. Objects are not compared against\n *     primitives, unless they have a custom `toString` method (e.g. `Date` objects).\n *\n *\n *   Defaults to `false`.\n *\n * @param {string} [anyPropertyKey] The special property name that matches against any property.\n *     By default `$`.\n *\n * @example\n   <example name=\"filter-filter\">\n     <file name=\"index.html\">\n       <div ng-init=\"friends = [{name:'John', phone:'555-1276'},\n                                {name:'Mary', phone:'800-BIG-MARY'},\n                                {name:'Mike', phone:'555-4321'},\n                                {name:'Adam', phone:'555-5678'},\n                                {name:'Julie', phone:'555-8765'},\n                                {name:'Juliette', phone:'555-5678'}]\"></div>\n\n       <label>Search: <input ng-model=\"searchText\"></label>\n       <table id=\"searchTextResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friend in friends | filter:searchText\">\n           <td>{{friend.name}}</td>\n           <td>{{friend.phone}}</td>\n         </tr>\n       </table>\n       <hr>\n       <label>Any: <input ng-model=\"search.$\"></label> <br>\n       <label>Name only <input ng-model=\"search.name\"></label><br>\n       <label>Phone only <input ng-model=\"search.phone\"></label><br>\n       <label>Equality <input type=\"checkbox\" ng-model=\"strict\"></label><br>\n       <table id=\"searchObjResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friendObj in friends | filter:search:strict\">\n           <td>{{friendObj.name}}</td>\n           <td>{{friendObj.phone}}</td>\n         </tr>\n       </table>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var expectFriendNames = function(expectedNames, key) {\n         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {\n           arr.forEach(function(wd, i) {\n             expect(wd.getText()).toMatch(expectedNames[i]);\n           });\n         });\n       };\n\n       it('should search across all fields when filtering with a string', function() {\n         var searchText = element(by.model('searchText'));\n         searchText.clear();\n         searchText.sendKeys('m');\n         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');\n\n         searchText.clear();\n         searchText.sendKeys('76');\n         expectFriendNames(['John', 'Julie'], 'friend');\n       });\n\n       it('should search in specific fields when filtering with a predicate object', function() {\n         var searchAny = element(by.model('search.$'));\n         searchAny.clear();\n         searchAny.sendKeys('i');\n         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');\n       });\n       it('should use a equal comparison when comparator is true', function() {\n         var searchName = element(by.model('search.name'));\n         var strict = element(by.model('strict'));\n         searchName.clear();\n         searchName.sendKeys('Julie');\n         strict.click();\n         expectFriendNames(['Julie'], 'friendObj');\n       });\n     </file>\n   </example>\n */\n\nfunction filterFilter() {\n  return function(array, expression, comparator, anyPropertyKey) {\n    if (!isArrayLike(array)) {\n      if (array == null) {\n        return array;\n      } else {\n        throw minErr('filter')('notarray', 'Expected array but received: {0}', array);\n      }\n    }\n\n    anyPropertyKey = anyPropertyKey || '$';\n    var expressionType = getTypeForFilter(expression);\n    var predicateFn;\n    var matchAgainstAnyProp;\n\n    switch (expressionType) {\n      case 'function':\n        predicateFn = expression;\n        break;\n      case 'boolean':\n      case 'null':\n      case 'number':\n      case 'string':\n        matchAgainstAnyProp = true;\n        // falls through\n      case 'object':\n        predicateFn = createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n        break;\n      default:\n        return array;\n    }\n\n    return Array.prototype.filter.call(array, predicateFn);\n  };\n}\n\n// Helper functions for `filterFilter`\nfunction createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp) {\n  var shouldMatchPrimitives = isObject(expression) && (anyPropertyKey in expression);\n  var predicateFn;\n\n  if (comparator === true) {\n    comparator = equals;\n  } else if (!isFunction(comparator)) {\n    comparator = function(actual, expected) {\n      if (isUndefined(actual)) {\n        // No substring matching against `undefined`\n        return false;\n      }\n      if ((actual === null) || (expected === null)) {\n        // No substring matching against `null`; only match against `null`\n        return actual === expected;\n      }\n      if (isObject(expected) || (isObject(actual) && !hasCustomToString(actual))) {\n        // Should not compare primitives against objects, unless they have custom `toString` method\n        return false;\n      }\n\n      actual = lowercase('' + actual);\n      expected = lowercase('' + expected);\n      return actual.indexOf(expected) !== -1;\n    };\n  }\n\n  predicateFn = function(item) {\n    if (shouldMatchPrimitives && !isObject(item)) {\n      return deepCompare(item, expression[anyPropertyKey], comparator, anyPropertyKey, false);\n    }\n    return deepCompare(item, expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n  };\n\n  return predicateFn;\n}\n\nfunction deepCompare(actual, expected, comparator, anyPropertyKey, matchAgainstAnyProp, dontMatchWholeObject) {\n  var actualType = getTypeForFilter(actual);\n  var expectedType = getTypeForFilter(expected);\n\n  if ((expectedType === 'string') && (expected.charAt(0) === '!')) {\n    return !deepCompare(actual, expected.substring(1), comparator, anyPropertyKey, matchAgainstAnyProp);\n  } else if (isArray(actual)) {\n    // In case `actual` is an array, consider it a match\n    // if ANY of it's items matches `expected`\n    return actual.some(function(item) {\n      return deepCompare(item, expected, comparator, anyPropertyKey, matchAgainstAnyProp);\n    });\n  }\n\n  switch (actualType) {\n    case 'object':\n      var key;\n      if (matchAgainstAnyProp) {\n        for (key in actual) {\n          // Under certain, rare, circumstances, key may not be a string and `charAt` will be undefined\n          // See: https://github.com/angular/angular.js/issues/15644\n          if (key.charAt && (key.charAt(0) !== '$') &&\n              deepCompare(actual[key], expected, comparator, anyPropertyKey, true)) {\n            return true;\n          }\n        }\n        return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, anyPropertyKey, false);\n      } else if (expectedType === 'object') {\n        for (key in expected) {\n          var expectedVal = expected[key];\n          if (isFunction(expectedVal) || isUndefined(expectedVal)) {\n            continue;\n          }\n\n          var matchAnyProperty = key === anyPropertyKey;\n          var actualVal = matchAnyProperty ? actual : actual[key];\n          if (!deepCompare(actualVal, expectedVal, comparator, anyPropertyKey, matchAnyProperty, matchAnyProperty)) {\n            return false;\n          }\n        }\n        return true;\n      } else {\n        return comparator(actual, expected);\n      }\n    case 'function':\n      return false;\n    default:\n      return comparator(actual, expected);\n  }\n}\n\n// Used for easily differentiating between `null` and actual `object`\nfunction getTypeForFilter(val) {\n  return (val === null) ? 'null' : typeof val;\n}\n\nvar MAX_DIGITS = 22;\nvar DECIMAL_SEP = '.';\nvar ZERO_CHAR = '0';\n\n/**\n * @ngdoc filter\n * @name currency\n * @kind function\n *\n * @description\n * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default\n * symbol for current locale is used.\n *\n * @param {number} amount Input to filter.\n * @param {string=} symbol Currency symbol or identifier to be displayed.\n * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale\n * @returns {string} Formatted number.\n *\n *\n * @example\n   <example module=\"currencyExample\" name=\"currency-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('currencyExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.amount = 1234.56;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"number\" ng-model=\"amount\" aria-label=\"amount\"> <br>\n         default currency symbol ($): <span id=\"currency-default\">{{amount | currency}}</span><br>\n         custom currency identifier (USD$): <span id=\"currency-custom\">{{amount | currency:\"USD$\"}}</span><br>\n         no fractions (0): <span id=\"currency-no-fractions\">{{amount | currency:\"USD$\":0}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should init with 1234.56', function() {\n         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');\n         expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235');\n       });\n       it('should update', function() {\n         if (browser.params.browser === 'safari') {\n           // Safari does not understand the minus key. See\n           // https://github.com/angular/protractor/issues/481\n           return;\n         }\n         element(by.model('amount')).clear();\n         element(by.model('amount')).sendKeys('-1234');\n         expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00');\n         expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234');\n       });\n     </file>\n   </example>\n */\ncurrencyFilter.$inject = ['$locale'];\nfunction currencyFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(amount, currencySymbol, fractionSize) {\n    if (isUndefined(currencySymbol)) {\n      currencySymbol = formats.CURRENCY_SYM;\n    }\n\n    if (isUndefined(fractionSize)) {\n      fractionSize = formats.PATTERNS[1].maxFrac;\n    }\n\n    // If the currency symbol is empty, trim whitespace around the symbol\n    var currencySymbolRe = !currencySymbol ? /\\s*\\u00A4\\s*/g : /\\u00A4/g;\n\n    // if null or undefined pass it through\n    return (amount == null)\n        ? amount\n        : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize).\n            replace(currencySymbolRe, currencySymbol);\n  };\n}\n\n/**\n * @ngdoc filter\n * @name number\n * @kind function\n *\n * @description\n * Formats a number as text.\n *\n * If the input is null or undefined, it will just be returned.\n * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively.\n * If the input is not a number an empty string is returned.\n *\n *\n * @param {number|string} number Number to format.\n * @param {(number|string)=} fractionSize Number of decimal places to round the number to.\n * If this is not provided then the fraction size is computed from the current locale's number\n * formatting pattern. In the case of the default locale, it will be 3.\n * @returns {string} Number rounded to `fractionSize` appropriately formatted based on the current\n *                   locale (e.g., in the en_US locale it will have \".\" as the decimal separator and\n *                   include \",\" group separators after each third digit).\n *\n * @example\n   <example module=\"numberFilterExample\" name=\"number-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('numberFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.val = 1234.56789;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter number: <input ng-model='val'></label><br>\n         Default formatting: <span id='number-default'>{{val | number}}</span><br>\n         No fractions: <span>{{val | number:0}}</span><br>\n         Negative number: <span>{{-val | number:4}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format numbers', function() {\n         expect(element(by.id('number-default')).getText()).toBe('1,234.568');\n         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');\n       });\n\n       it('should update', function() {\n         element(by.model('val')).clear();\n         element(by.model('val')).sendKeys('3374.333');\n         expect(element(by.id('number-default')).getText()).toBe('3,374.333');\n         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');\n      });\n     </file>\n   </example>\n */\nnumberFilter.$inject = ['$locale'];\nfunction numberFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(number, fractionSize) {\n\n    // if null or undefined pass it through\n    return (number == null)\n        ? number\n        : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,\n                       fractionSize);\n  };\n}\n\n/**\n * Parse a number (as a string) into three components that can be used\n * for formatting the number.\n *\n * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/)\n *\n * @param  {string} numStr The number to parse\n * @return {object} An object describing this number, containing the following keys:\n *  - d : an array of digits containing leading zeros as necessary\n *  - i : the number of the digits in `d` that are to the left of the decimal point\n *  - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d`\n *\n */\nfunction parse(numStr) {\n  var exponent = 0, digits, numberOfIntegerDigits;\n  var i, j, zeros;\n\n  // Decimal point?\n  if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) {\n    numStr = numStr.replace(DECIMAL_SEP, '');\n  }\n\n  // Exponential form?\n  if ((i = numStr.search(/e/i)) > 0) {\n    // Work out the exponent.\n    if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i;\n    numberOfIntegerDigits += +numStr.slice(i + 1);\n    numStr = numStr.substring(0, i);\n  } else if (numberOfIntegerDigits < 0) {\n    // There was no decimal point or exponent so it is an integer.\n    numberOfIntegerDigits = numStr.length;\n  }\n\n  // Count the number of leading zeros.\n  for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */ }\n\n  if (i === (zeros = numStr.length)) {\n    // The digits are all zero.\n    digits = [0];\n    numberOfIntegerDigits = 1;\n  } else {\n    // Count the number of trailing zeros\n    zeros--;\n    while (numStr.charAt(zeros) === ZERO_CHAR) zeros--;\n\n    // Trailing zeros are insignificant so ignore them\n    numberOfIntegerDigits -= i;\n    digits = [];\n    // Convert string to array of digits without leading/trailing zeros.\n    for (j = 0; i <= zeros; i++, j++) {\n      digits[j] = +numStr.charAt(i);\n    }\n  }\n\n  // If the number overflows the maximum allowed digits then use an exponent.\n  if (numberOfIntegerDigits > MAX_DIGITS) {\n    digits = digits.splice(0, MAX_DIGITS - 1);\n    exponent = numberOfIntegerDigits - 1;\n    numberOfIntegerDigits = 1;\n  }\n\n  return { d: digits, e: exponent, i: numberOfIntegerDigits };\n}\n\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changed the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) {\n    var digits = parsedNumber.d;\n    var fractionLen = digits.length - parsedNumber.i;\n\n    // determine fractionSize if it is not specified; `+fractionSize` converts it to a number\n    fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize;\n\n    // The index of the digit to where rounding is to occur\n    var roundAt = fractionSize + parsedNumber.i;\n    var digit = digits[roundAt];\n\n    if (roundAt > 0) {\n      // Drop fractional digits beyond `roundAt`\n      digits.splice(Math.max(parsedNumber.i, roundAt));\n\n      // Set non-fractional digits beyond `roundAt` to 0\n      for (var j = roundAt; j < digits.length; j++) {\n        digits[j] = 0;\n      }\n    } else {\n      // We rounded to zero so reset the parsedNumber\n      fractionLen = Math.max(0, fractionLen);\n      parsedNumber.i = 1;\n      digits.length = Math.max(1, roundAt = fractionSize + 1);\n      digits[0] = 0;\n      for (var i = 1; i < roundAt; i++) digits[i] = 0;\n    }\n\n    if (digit >= 5) {\n      if (roundAt - 1 < 0) {\n        for (var k = 0; k > roundAt; k--) {\n          digits.unshift(0);\n          parsedNumber.i++;\n        }\n        digits.unshift(1);\n        parsedNumber.i++;\n      } else {\n        digits[roundAt - 1]++;\n      }\n    }\n\n    // Pad out with zeros to get the required fraction length\n    for (; fractionLen < Math.max(0, fractionSize); fractionLen++) digits.push(0);\n\n\n    // Do any carrying, e.g. a digit was rounded up to 10\n    var carry = digits.reduceRight(function(carry, d, i, digits) {\n      d = d + carry;\n      digits[i] = d % 10;\n      return Math.floor(d / 10);\n    }, 0);\n    if (carry) {\n      digits.unshift(carry);\n      parsedNumber.i++;\n    }\n}\n\n/**\n * Format a number into a string\n * @param  {number} number       The number to format\n * @param  {{\n *           minFrac, // the minimum number of digits required in the fraction part of the number\n *           maxFrac, // the maximum number of digits required in the fraction part of the number\n *           gSize,   // number of digits in each group of separated digits\n *           lgSize,  // number of digits in the last group of digits before the decimal separator\n *           negPre,  // the string to go in front of a negative number (e.g. `-` or `(`))\n *           posPre,  // the string to go in front of a positive number\n *           negSuf,  // the string to go after a negative number (e.g. `)`)\n *           posSuf   // the string to go after a positive number\n *         }} pattern\n * @param  {string} groupSep     The string to separate groups of number (e.g. `,`)\n * @param  {string} decimalSep   The string to act as the decimal separator (e.g. `.`)\n * @param  {[type]} fractionSize The size of the fractional part of the number\n * @return {string}              The number formatted as a string\n */\nfunction formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {\n\n  if (!(isString(number) || isNumber(number)) || isNaN(number)) return '';\n\n  var isInfinity = !isFinite(number);\n  var isZero = false;\n  var numStr = Math.abs(number) + '',\n      formattedText = '',\n      parsedNumber;\n\n  if (isInfinity) {\n    formattedText = '\\u221e';\n  } else {\n    parsedNumber = parse(numStr);\n\n    roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac);\n\n    var digits = parsedNumber.d;\n    var integerLen = parsedNumber.i;\n    var exponent = parsedNumber.e;\n    var decimals = [];\n    isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true);\n\n    // pad zeros for small numbers\n    while (integerLen < 0) {\n      digits.unshift(0);\n      integerLen++;\n    }\n\n    // extract decimals digits\n    if (integerLen > 0) {\n      decimals = digits.splice(integerLen, digits.length);\n    } else {\n      decimals = digits;\n      digits = [0];\n    }\n\n    // format the integer digits with grouping separators\n    var groups = [];\n    if (digits.length >= pattern.lgSize) {\n      groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n    }\n    while (digits.length > pattern.gSize) {\n      groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n    }\n    if (digits.length) {\n      groups.unshift(digits.join(''));\n    }\n    formattedText = groups.join(groupSep);\n\n    // append the decimal digits\n    if (decimals.length) {\n      formattedText += decimalSep + decimals.join('');\n    }\n\n    if (exponent) {\n      formattedText += 'e+' + exponent;\n    }\n  }\n  if (number < 0 && !isZero) {\n    return pattern.negPre + formattedText + pattern.negSuf;\n  } else {\n    return pattern.posPre + formattedText + pattern.posSuf;\n  }\n}\n\nfunction padNumber(num, digits, trim, negWrap) {\n  var neg = '';\n  if (num < 0 || (negWrap && num <= 0)) {\n    if (negWrap) {\n      num = -num + 1;\n    } else {\n      num = -num;\n      neg = '-';\n    }\n  }\n  num = '' + num;\n  while (num.length < digits) num = ZERO_CHAR + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\nfunction dateGetter(name, size, offset, trim, negWrap) {\n  offset = offset || 0;\n  return function(date) {\n    var value = date['get' + name]();\n    if (offset > 0 || value > -offset) {\n      value += offset;\n    }\n    if (value === 0 && offset === -12) value = 12;\n    return padNumber(value, size, trim, negWrap);\n  };\n}\n\nfunction dateStrGetter(name, shortForm, standAlone) {\n  return function(date, formats) {\n    var value = date['get' + name]();\n    var propPrefix = (standAlone ? 'STANDALONE' : '') + (shortForm ? 'SHORT' : '');\n    var get = uppercase(propPrefix + name);\n\n    return formats[get][value];\n  };\n}\n\nfunction timeZoneGetter(date, formats, offset) {\n  var zone = -1 * offset;\n  var paddedZone = (zone >= 0) ? '+' : '';\n\n  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +\n                padNumber(Math.abs(zone % 60), 2);\n\n  return paddedZone;\n}\n\nfunction getFirstThursdayOfYear(year) {\n    // 0 = index of January\n    var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay();\n    // 4 = index of Thursday (+1 to account for 1st = 5)\n    // 11 = index of *next* Thursday (+1 account for 1st = 12)\n    return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst);\n}\n\nfunction getThursdayThisWeek(datetime) {\n    return new Date(datetime.getFullYear(), datetime.getMonth(),\n      // 4 = index of Thursday\n      datetime.getDate() + (4 - datetime.getDay()));\n}\n\nfunction weekGetter(size) {\n   return function(date) {\n      var firstThurs = getFirstThursdayOfYear(date.getFullYear()),\n         thisThurs = getThursdayThisWeek(date);\n\n      var diff = +thisThurs - +firstThurs,\n         result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n\n      return padNumber(result, size);\n   };\n}\n\nfunction ampmGetter(date, formats) {\n  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];\n}\n\nfunction eraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1];\n}\n\nfunction longEraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1];\n}\n\nvar DATE_FORMATS = {\n  yyyy: dateGetter('FullYear', 4, 0, false, true),\n    yy: dateGetter('FullYear', 2, 0, true, true),\n     y: dateGetter('FullYear', 1, 0, false, true),\n  MMMM: dateStrGetter('Month'),\n   MMM: dateStrGetter('Month', true),\n    MM: dateGetter('Month', 2, 1),\n     M: dateGetter('Month', 1, 1),\n  LLLL: dateStrGetter('Month', false, true),\n    dd: dateGetter('Date', 2),\n     d: dateGetter('Date', 1),\n    HH: dateGetter('Hours', 2),\n     H: dateGetter('Hours', 1),\n    hh: dateGetter('Hours', 2, -12),\n     h: dateGetter('Hours', 1, -12),\n    mm: dateGetter('Minutes', 2),\n     m: dateGetter('Minutes', 1),\n    ss: dateGetter('Seconds', 2),\n     s: dateGetter('Seconds', 1),\n     // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions\n   sss: dateGetter('Milliseconds', 3),\n  EEEE: dateStrGetter('Day'),\n   EEE: dateStrGetter('Day', true),\n     a: ampmGetter,\n     Z: timeZoneGetter,\n    ww: weekGetter(2),\n     w: weekGetter(1),\n     G: eraGetter,\n     GG: eraGetter,\n     GGG: eraGetter,\n     GGGG: longEraGetter\n};\n\nvar DATE_FORMATS_SPLIT = /((?:[^yMLdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|m+|s+|a|Z|G+|w+))([\\s\\S]*)/,\n    NUMBER_STRING = /^-?\\d+$/;\n\n/**\n * @ngdoc filter\n * @name date\n * @kind function\n *\n * @description\n *   Formats `date` to a string based on the requested `format`.\n *\n *   `format` string can be composed of the following elements:\n *\n *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)\n *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)\n *   * `'MMMM'`: Month in year (January-December)\n *   * `'MMM'`: Month in year (Jan-Dec)\n *   * `'MM'`: Month in year, padded (01-12)\n *   * `'M'`: Month in year (1-12)\n *   * `'LLLL'`: Stand-alone month in year (January-December)\n *   * `'dd'`: Day in month, padded (01-31)\n *   * `'d'`: Day in month (1-31)\n *   * `'EEEE'`: Day in Week,(Sunday-Saturday)\n *   * `'EEE'`: Day in Week, (Sun-Sat)\n *   * `'HH'`: Hour in day, padded (00-23)\n *   * `'H'`: Hour in day (0-23)\n *   * `'hh'`: Hour in AM/PM, padded (01-12)\n *   * `'h'`: Hour in AM/PM, (1-12)\n *   * `'mm'`: Minute in hour, padded (00-59)\n *   * `'m'`: Minute in hour (0-59)\n *   * `'ss'`: Second in minute, padded (00-59)\n *   * `'s'`: Second in minute (0-59)\n *   * `'sss'`: Millisecond in second, padded (000-999)\n *   * `'a'`: AM/PM marker\n *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)\n *   * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year\n *   * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year\n *   * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD')\n *   * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini')\n *\n *   `format` string can also be one of the following predefined\n *   {@link guide/i18n localizable formats}:\n *\n *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale\n *     (e.g. Sep 3, 2010 12:05:08 PM)\n *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)\n *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale\n *     (e.g. Friday, September 3, 2010)\n *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)\n *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)\n *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)\n *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)\n *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)\n *\n *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.\n *   `\"h 'in the morning'\"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence\n *   (e.g. `\"h 'o''clock'\"`).\n *\n *   Any other characters in the `format` string will be output as-is.\n *\n * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or\n *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its\n *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is\n *    specified in the string input, the time is considered to be in the local timezone.\n * @param {string=} format Formatting rules (see Description). If not specified,\n *    `mediumDate` is used.\n * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the\n *    continental US time zone abbreviations, but for general use, use a time zone offset, for\n *    example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *    If not specified, the timezone of the browser will be used.\n * @returns {string} Formatted string or the input if input is not recognized as date/millis.\n *\n * @example\n   <example name=\"filter-date\">\n     <file name=\"index.html\">\n       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:\n           <span>{{1288323623006 | date:'medium'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:\n          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:\n          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:\"MM/dd/yyyy 'at' h:mma\"}}</span>:\n          <span>{{'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"}}</span><br>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format date', function() {\n         expect(element(by.binding(\"1288323623006 | date:'medium'\")).getText()).\n            toMatch(/Oct 2\\d, 2010 \\d{1,2}:\\d{2}:\\d{2} (AM|PM)/);\n         expect(element(by.binding(\"1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'\")).getText()).\n            toMatch(/2010-10-2\\d \\d{2}:\\d{2}:\\d{2} (-|\\+)?\\d{4}/);\n         expect(element(by.binding(\"'1288323623006' | date:'MM/dd/yyyy @ h:mma'\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 @ \\d{1,2}:\\d{2}(AM|PM)/);\n         expect(element(by.binding(\"'1288323623006' | date:\\\"MM/dd/yyyy 'at' h:mma\\\"\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 at \\d{1,2}:\\d{2}(AM|PM)/);\n       });\n     </file>\n   </example>\n */\ndateFilter.$inject = ['$locale'];\nfunction dateFilter($locale) {\n\n\n  var R_ISO8601_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n                     // 1        2       3         4          5          6          7          8  9     10      11\n  function jsonStringToDate(string) {\n    var match;\n    if ((match = string.match(R_ISO8601_STR))) {\n      var date = new Date(0),\n          tzHour = 0,\n          tzMin  = 0,\n          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,\n          timeSetter = match[8] ? date.setUTCHours : date.setHours;\n\n      if (match[9]) {\n        tzHour = toInt(match[9] + match[10]);\n        tzMin = toInt(match[9] + match[11]);\n      }\n      dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n      var h = toInt(match[4] || 0) - tzHour;\n      var m = toInt(match[5] || 0) - tzMin;\n      var s = toInt(match[6] || 0);\n      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n      timeSetter.call(date, h, m, s, ms);\n      return date;\n    }\n    return string;\n  }\n\n\n  return function(date, format, timezone) {\n    var text = '',\n        parts = [],\n        fn, match;\n\n    format = format || 'mediumDate';\n    format = $locale.DATETIME_FORMATS[format] || format;\n    if (isString(date)) {\n      date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date);\n    }\n\n    if (isNumber(date)) {\n      date = new Date(date);\n    }\n\n    if (!isDate(date) || !isFinite(date.getTime())) {\n      return date;\n    }\n\n    while (format) {\n      match = DATE_FORMATS_SPLIT.exec(format);\n      if (match) {\n        parts = concat(parts, match, 1);\n        format = parts.pop();\n      } else {\n        parts.push(format);\n        format = null;\n      }\n    }\n\n    var dateTimezoneOffset = date.getTimezoneOffset();\n    if (timezone) {\n      dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n      date = convertTimezoneToLocal(date, timezone, true);\n    }\n    forEach(parts, function(value) {\n      fn = DATE_FORMATS[value];\n      text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset)\n                 : value === '\\'\\'' ? '\\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n    });\n\n    return text;\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name json\n * @kind function\n *\n * @description\n *   Allows you to convert a JavaScript object into JSON string.\n *\n *   This filter is mostly useful for debugging. When using the double curly {{value}} notation\n *   the binding is automatically converted to JSON.\n *\n * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.\n * @param {number=} spacing The number of spaces to use per indentation, defaults to 2.\n * @returns {string} JSON string.\n *\n *\n * @example\n   <example name=\"filter-json\">\n     <file name=\"index.html\">\n       <pre id=\"default-spacing\">{{ {'name':'value'} | json }}</pre>\n       <pre id=\"custom-spacing\">{{ {'name':'value'} | json:4 }}</pre>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should jsonify filtered objects', function() {\n         expect(element(by.id('default-spacing')).getText()).toMatch(/\\{\\n {2}\"name\": ?\"value\"\\n}/);\n         expect(element(by.id('custom-spacing')).getText()).toMatch(/\\{\\n {4}\"name\": ?\"value\"\\n}/);\n       });\n     </file>\n   </example>\n *\n */\nfunction jsonFilter() {\n  return function(object, spacing) {\n    if (isUndefined(spacing)) {\n        spacing = 2;\n    }\n    return toJson(object, spacing);\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name lowercase\n * @kind function\n * @description\n * Converts string to lowercase.\n *\n * See the {@link ng.uppercase uppercase filter documentation} for a functionally identical example.\n *\n * @see angular.lowercase\n */\nvar lowercaseFilter = valueFn(lowercase);\n\n\n/**\n * @ngdoc filter\n * @name uppercase\n * @kind function\n * @description\n * Converts string to uppercase.\n * @example\n   <example module=\"uppercaseFilterExample\" name=\"filter-uppercase\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('uppercaseFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.title = 'This is a title';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <!-- This title should be formatted normally -->\n         <h1>{{title}}</h1>\n         <!-- This title should be capitalized -->\n         <h1>{{title | uppercase}}</h1>\n       </div>\n     </file>\n   </example>\n */\nvar uppercaseFilter = valueFn(uppercase);\n\n/**\n * @ngdoc filter\n * @name limitTo\n * @kind function\n *\n * @description\n * Creates a new array or string containing only a specified number of elements. The elements are\n * taken from either the beginning or the end of the source array, string or number, as specified by\n * the value and sign (positive or negative) of `limit`. Other array-like objects are also supported\n * (e.g. array subclasses, NodeLists, jqLite/jQuery collections etc). If a number is used as input,\n * it is converted to a string.\n *\n * @param {Array|ArrayLike|string|number} input - Array/array-like, string or number to be limited.\n * @param {string|number} limit - The length of the returned array or string. If the `limit` number\n *     is positive, `limit` number of items from the beginning of the source array/string are copied.\n *     If the number is negative, `limit` number  of items from the end of the source array/string\n *     are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined,\n *     the input will be returned unchanged.\n * @param {(string|number)=} begin - Index at which to begin limitation. As a negative index,\n *     `begin` indicates an offset from the end of `input`. Defaults to `0`.\n * @returns {Array|string} A new sub-array or substring of length `limit` or less if the input had\n *     less than `limit` elements.\n *\n * @example\n   <example module=\"limitToExample\" name=\"limit-to-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('limitToExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.numbers = [1,2,3,4,5,6,7,8,9];\n             $scope.letters = \"abcdefghi\";\n             $scope.longNumber = 2345432342;\n             $scope.numLimit = 3;\n             $scope.letterLimit = 3;\n             $scope.longNumberLimit = 3;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>\n            Limit {{numbers}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"numLimit\">\n         </label>\n         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>\n         <label>\n            Limit {{letters}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"letterLimit\">\n         </label>\n         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>\n         <label>\n            Limit {{longNumber}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"longNumberLimit\">\n         </label>\n         <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var numLimitInput = element(by.model('numLimit'));\n       var letterLimitInput = element(by.model('letterLimit'));\n       var longNumberLimitInput = element(by.model('longNumberLimit'));\n       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));\n       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));\n       var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));\n\n       it('should limit the number array to first three items', function() {\n         expect(numLimitInput.getAttribute('value')).toBe('3');\n         expect(letterLimitInput.getAttribute('value')).toBe('3');\n         expect(longNumberLimitInput.getAttribute('value')).toBe('3');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abc');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 234');\n       });\n\n       // There is a bug in safari and protractor that doesn't like the minus key\n       // it('should update the output when -3 is entered', function() {\n       //   numLimitInput.clear();\n       //   numLimitInput.sendKeys('-3');\n       //   letterLimitInput.clear();\n       //   letterLimitInput.sendKeys('-3');\n       //   longNumberLimitInput.clear();\n       //   longNumberLimitInput.sendKeys('-3');\n       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');\n       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');\n       //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');\n       // });\n\n       it('should not exceed the maximum size of input array', function() {\n         numLimitInput.clear();\n         numLimitInput.sendKeys('100');\n         letterLimitInput.clear();\n         letterLimitInput.sendKeys('100');\n         longNumberLimitInput.clear();\n         longNumberLimitInput.sendKeys('100');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');\n       });\n     </file>\n   </example>\n*/\nfunction limitToFilter() {\n  return function(input, limit, begin) {\n    if (Math.abs(Number(limit)) === Infinity) {\n      limit = Number(limit);\n    } else {\n      limit = toInt(limit);\n    }\n    if (isNumberNaN(limit)) return input;\n\n    if (isNumber(input)) input = input.toString();\n    if (!isArrayLike(input)) return input;\n\n    begin = (!begin || isNaN(begin)) ? 0 : toInt(begin);\n    begin = (begin < 0) ? Math.max(0, input.length + begin) : begin;\n\n    if (limit >= 0) {\n      return sliceFn(input, begin, begin + limit);\n    } else {\n      if (begin === 0) {\n        return sliceFn(input, limit, input.length);\n      } else {\n        return sliceFn(input, Math.max(0, begin + limit), begin);\n      }\n    }\n  };\n}\n\nfunction sliceFn(input, begin, end) {\n  if (isString(input)) return input.slice(begin, end);\n\n  return slice.call(input, begin, end);\n}\n\n/**\n * @ngdoc filter\n * @name orderBy\n * @kind function\n *\n * @description\n * Returns an array containing the items from the specified `collection`, ordered by a `comparator`\n * function based on the values computed using the `expression` predicate.\n *\n * For example, `[{id: 'foo'}, {id: 'bar'}] | orderBy:'id'` would result in\n * `[{id: 'bar'}, {id: 'foo'}]`.\n *\n * The `collection` can be an Array or array-like object (e.g. NodeList, jQuery object, TypedArray,\n * String, etc).\n *\n * The `expression` can be a single predicate, or a list of predicates each serving as a tie-breaker\n * for the preceding one. The `expression` is evaluated against each item and the output is used\n * for comparing with other items.\n *\n * You can change the sorting order by setting `reverse` to `true`. By default, items are sorted in\n * ascending order.\n *\n * The comparison is done using the `comparator` function. If none is specified, a default, built-in\n * comparator is used (see below for details - in a nutshell, it compares numbers numerically and\n * strings alphabetically).\n *\n * ### Under the hood\n *\n * Ordering the specified `collection` happens in two phases:\n *\n * 1. All items are passed through the predicate (or predicates), and the returned values are saved\n *    along with their type (`string`, `number` etc). For example, an item `{label: 'foo'}`, passed\n *    through a predicate that extracts the value of the `label` property, would be transformed to:\n *    ```\n *    {\n *      value: 'foo',\n *      type: 'string',\n *      index: ...\n *    }\n *    ```\n * 2. The comparator function is used to sort the items, based on the derived values, types and\n *    indices.\n *\n * If you use a custom comparator, it will be called with pairs of objects of the form\n * `{value: ..., type: '...', index: ...}` and is expected to return `0` if the objects are equal\n * (as far as the comparator is concerned), `-1` if the 1st one should be ranked higher than the\n * second, or `1` otherwise.\n *\n * In order to ensure that the sorting will be deterministic across platforms, if none of the\n * specified predicates can distinguish between two items, `orderBy` will automatically introduce a\n * dummy predicate that returns the item's index as `value`.\n * (If you are using a custom comparator, make sure it can handle this predicate as well.)\n *\n * If a custom comparator still can't distinguish between two items, then they will be sorted based\n * on their index using the built-in comparator.\n *\n * Finally, in an attempt to simplify things, if a predicate returns an object as the extracted\n * value for an item, `orderBy` will try to convert that object to a primitive value, before passing\n * it to the comparator. The following rules govern the conversion:\n *\n * 1. If the object has a `valueOf()` method that returns a primitive, its return value will be\n *    used instead.<br />\n *    (If the object has a `valueOf()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 2. If the object has a custom `toString()` method (i.e. not the one inherited from `Object`) that\n *    returns a primitive, its return value will be used instead.<br />\n *    (If the object has a `toString()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 3. No conversion; the object itself is used.\n *\n * ### The default comparator\n *\n * The default, built-in comparator should be sufficient for most usecases. In short, it compares\n * numbers numerically, strings alphabetically (and case-insensitively), for objects falls back to\n * using their index in the original collection, and sorts values of different types by type.\n *\n * More specifically, it follows these steps to determine the relative order of items:\n *\n * 1. If the compared values are of different types, compare the types themselves alphabetically.\n * 2. If both values are of type `string`, compare them alphabetically in a case- and\n *    locale-insensitive way.\n * 3. If both values are objects, compare their indices instead.\n * 4. Otherwise, return:\n *    -  `0`, if the values are equal (by strict equality comparison, i.e. using `===`).\n *    - `-1`, if the 1st value is \"less than\" the 2nd value (compared using the `<` operator).\n *    -  `1`, otherwise.\n *\n * **Note:** If you notice numbers not being sorted as expected, make sure they are actually being\n *           saved as numbers and not strings.\n * **Note:** For the purpose of sorting, `null` values are treated as the string `'null'` (i.e.\n *           `type: 'string'`, `value: 'null'`). This may cause unexpected sort order relative to\n *           other values.\n *\n * @param {Array|ArrayLike} collection - The collection (array or array-like object) to sort.\n * @param {(Function|string|Array.<Function|string>)=} expression - A predicate (or list of\n *    predicates) to be used by the comparator to determine the order of elements.\n *\n *    Can be one of:\n *\n *    - `Function`: A getter function. This function will be called with each item as argument and\n *      the return value will be used for sorting.\n *    - `string`: An AngularJS expression. This expression will be evaluated against each item and the\n *      result will be used for sorting. For example, use `'label'` to sort by a property called\n *      `label` or `'label.substring(0, 3)'` to sort by the first 3 characters of the `label`\n *      property.<br />\n *      (The result of a constant expression is interpreted as a property name to be used for\n *      comparison. For example, use `'\"special name\"'` (note the extra pair of quotes) to sort by a\n *      property called `special name`.)<br />\n *      An expression can be optionally prefixed with `+` or `-` to control the sorting direction,\n *      ascending or descending. For example, `'+label'` or `'-label'`. If no property is provided,\n *      (e.g. `'+'` or `'-'`), the collection element itself is used in comparisons.\n *    - `Array`: An array of function and/or string predicates. If a predicate cannot determine the\n *      relative order of two items, the next predicate is used as a tie-breaker.\n *\n * **Note:** If the predicate is missing or empty then it defaults to `'+'`.\n *\n * @param {boolean=} reverse - If `true`, reverse the sorting order.\n * @param {(Function)=} comparator - The comparator function used to determine the relative order of\n *    value pairs. If omitted, the built-in comparator will be used.\n *\n * @returns {Array} - The sorted array.\n *\n *\n * @example\n * ### Ordering a table with `ngRepeat`\n *\n * The example below demonstrates a simple {@link ngRepeat ngRepeat}, where the data is sorted by\n * age in descending order (expression is set to `'-age'`). The `comparator` is not set, which means\n * it defaults to the built-in comparator.\n *\n   <example name=\"orderBy-static\" module=\"orderByExample1\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <table class=\"friends\">\n           <tr>\n             <th>Name</th>\n             <th>Phone Number</th>\n             <th>Age</th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:'-age'\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample1', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var names = element.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by age in reverse order', function() {\n         expect(names.get(0).getText()).toBe('Adam');\n         expect(names.get(1).getText()).toBe('Julie');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('John');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Changing parameters dynamically\n *\n * All parameters can be changed dynamically. The next example shows how you can make the columns of\n * a table sortable, by binding the `expression` and `reverse` parameters to scope properties.\n *\n   <example name=\"orderBy-dynamic\" module=\"orderByExample2\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"propertyName = null; reverse = false\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:propertyName:reverse\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample2', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = friends;\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = ($scope.propertyName === propertyName) ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using `orderBy` inside a controller\n *\n * It is also possible to call the `orderBy` filter manually, by injecting `orderByFilter`, and\n * calling it with the desired parameters. (Alternatively, you could inject the `$filter` factory\n * and retrieve the `orderBy` filter with `$filter('orderBy')`.)\n *\n   <example name=\"orderBy-call-manually\" module=\"orderByExample3\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"sortBy(null)\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample3', [])\n         .controller('ExampleController', ['$scope', 'orderByFilter', function($scope, orderBy) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = (propertyName !== null && $scope.propertyName === propertyName)\n                 ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n             $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using a custom comparator\n *\n * If you have very specific requirements about the way items are sorted, you can pass your own\n * comparator function. For example, you might need to compare some strings in a locale-sensitive\n * way. (When specifying a custom comparator, you also need to pass a value for the `reverse`\n * argument - passing `false` retains the default sorting order, i.e. ascending.)\n *\n   <example name=\"orderBy-custom-comparator\" module=\"orderByExample4\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <div class=\"friends-container custom-comparator\">\n           <h3>Locale-sensitive Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter':false:localeSensitiveComparator\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n         <div class=\"friends-container default-comparator\">\n           <h3>Default Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter'\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample4', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   favoriteLetter: 'Ä'},\n             {name: 'Mary',   favoriteLetter: 'Ü'},\n             {name: 'Mike',   favoriteLetter: 'Ö'},\n             {name: 'Adam',   favoriteLetter: 'H'},\n             {name: 'Julie',  favoriteLetter: 'Z'}\n           ];\n\n           $scope.localeSensitiveComparator = function(v1, v2) {\n             // If we don't get strings, just compare by index\n             if (v1.type !== 'string' || v2.type !== 'string') {\n               return (v1.index < v2.index) ? -1 : 1;\n             }\n\n             // Compare strings alphabetically, taking locale into account\n             return v1.value.localeCompare(v2.value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends-container {\n         display: inline-block;\n         margin: 0 30px;\n       }\n\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var container = element(by.css('.custom-comparator'));\n       var names = container.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by favorite letter (in correct alphabetical order)', function() {\n         expect(names.get(0).getText()).toBe('John');\n         expect(names.get(1).getText()).toBe('Adam');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n *\n */\norderByFilter.$inject = ['$parse'];\nfunction orderByFilter($parse) {\n  return function(array, sortPredicate, reverseOrder, compareFn) {\n\n    if (array == null) return array;\n    if (!isArrayLike(array)) {\n      throw minErr('orderBy')('notarray', 'Expected array but received: {0}', array);\n    }\n\n    if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; }\n    if (sortPredicate.length === 0) { sortPredicate = ['+']; }\n\n    var predicates = processPredicates(sortPredicate);\n\n    var descending = reverseOrder ? -1 : 1;\n\n    // Define the `compare()` function. Use a default comparator if none is specified.\n    var compare = isFunction(compareFn) ? compareFn : defaultCompare;\n\n    // The next three lines are a version of a Swartzian Transform idiom from Perl\n    // (sometimes called the Decorate-Sort-Undecorate idiom)\n    // See https://en.wikipedia.org/wiki/Schwartzian_transform\n    var compareValues = Array.prototype.map.call(array, getComparisonObject);\n    compareValues.sort(doComparison);\n    array = compareValues.map(function(item) { return item.value; });\n\n    return array;\n\n    function getComparisonObject(value, index) {\n      // NOTE: We are adding an extra `tieBreaker` value based on the element's index.\n      // This will be used to keep the sort stable when none of the input predicates can\n      // distinguish between two elements.\n      return {\n        value: value,\n        tieBreaker: {value: index, type: 'number', index: index},\n        predicateValues: predicates.map(function(predicate) {\n          return getPredicateValue(predicate.get(value), index);\n        })\n      };\n    }\n\n    function doComparison(v1, v2) {\n      for (var i = 0, ii = predicates.length; i < ii; i++) {\n        var result = compare(v1.predicateValues[i], v2.predicateValues[i]);\n        if (result) {\n          return result * predicates[i].descending * descending;\n        }\n      }\n\n      return (compare(v1.tieBreaker, v2.tieBreaker) || defaultCompare(v1.tieBreaker, v2.tieBreaker)) * descending;\n    }\n  };\n\n  function processPredicates(sortPredicates) {\n    return sortPredicates.map(function(predicate) {\n      var descending = 1, get = identity;\n\n      if (isFunction(predicate)) {\n        get = predicate;\n      } else if (isString(predicate)) {\n        if ((predicate.charAt(0) === '+' || predicate.charAt(0) === '-')) {\n          descending = predicate.charAt(0) === '-' ? -1 : 1;\n          predicate = predicate.substring(1);\n        }\n        if (predicate !== '') {\n          get = $parse(predicate);\n          if (get.constant) {\n            var key = get();\n            get = function(value) { return value[key]; };\n          }\n        }\n      }\n      return {get: get, descending: descending};\n    });\n  }\n\n  function isPrimitive(value) {\n    switch (typeof value) {\n      case 'number': /* falls through */\n      case 'boolean': /* falls through */\n      case 'string':\n        return true;\n      default:\n        return false;\n    }\n  }\n\n  function objectValue(value) {\n    // If `valueOf` is a valid function use that\n    if (isFunction(value.valueOf)) {\n      value = value.valueOf();\n      if (isPrimitive(value)) return value;\n    }\n    // If `toString` is a valid function and not the one from `Object.prototype` use that\n    if (hasCustomToString(value)) {\n      value = value.toString();\n      if (isPrimitive(value)) return value;\n    }\n\n    return value;\n  }\n\n  function getPredicateValue(value, index) {\n    var type = typeof value;\n    if (value === null) {\n      type = 'string';\n      value = 'null';\n    } else if (type === 'object') {\n      value = objectValue(value);\n    }\n    return {value: value, type: type, index: index};\n  }\n\n  function defaultCompare(v1, v2) {\n    var result = 0;\n    var type1 = v1.type;\n    var type2 = v2.type;\n\n    if (type1 === type2) {\n      var value1 = v1.value;\n      var value2 = v2.value;\n\n      if (type1 === 'string') {\n        // Compare strings case-insensitively\n        value1 = value1.toLowerCase();\n        value2 = value2.toLowerCase();\n      } else if (type1 === 'object') {\n        // For basic objects, use the position of the object\n        // in the collection instead of the value\n        if (isObject(value1)) value1 = v1.index;\n        if (isObject(value2)) value2 = v2.index;\n      }\n\n      if (value1 !== value2) {\n        result = value1 < value2 ? -1 : 1;\n      }\n    } else {\n      result = type1 < type2 ? -1 : 1;\n    }\n\n    return result;\n  }\n}\n\nfunction ngDirective(directive) {\n  if (isFunction(directive)) {\n    directive = {\n      link: directive\n    };\n  }\n  directive.restrict = directive.restrict || 'AC';\n  return valueFn(directive);\n}\n\n/**\n * @ngdoc directive\n * @name a\n * @restrict E\n *\n * @description\n * Modifies the default behavior of the html a tag so that the default action is prevented when\n * the href attribute is empty.\n *\n * For dynamically creating `href` attributes for a tags, see the {@link ng.ngHref `ngHref`} directive.\n */\nvar htmlAnchorDirective = valueFn({\n  restrict: 'E',\n  compile: function(element, attr) {\n    if (!attr.href && !attr.xlinkHref) {\n      return function(scope, element) {\n        // If the linked element is not an anchor tag anymore, do nothing\n        if (element[0].nodeName.toLowerCase() !== 'a') return;\n\n        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?\n                   'xlink:href' : 'href';\n        element.on('click', function(event) {\n          // if we have no href url, then don't navigate anywhere.\n          if (!element.attr(href)) {\n            event.preventDefault();\n          }\n        });\n      };\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngHref\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in an href attribute will\n * make the link go to the wrong URL if the user clicks it before\n * AngularJS has a chance to replace the `{{hash}}` markup with its\n * value. Until AngularJS replaces the markup the link will be broken\n * and will most likely return a 404 error. The `ngHref` directive\n * solves this problem.\n *\n * The wrong way to write it:\n * ```html\n * <a href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <a ng-href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * @element A\n * @param {template} ngHref any string which can contain `{{}}` markup.\n *\n * @example\n * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes\n * in links and their different behaviors:\n    <example name=\"ng-href\">\n      <file name=\"index.html\">\n        <input ng-model=\"value\" /><br />\n        <a id=\"link-1\" href ng-click=\"value = 1\">link 1</a> (link, don't reload)<br />\n        <a id=\"link-2\" href=\"\" ng-click=\"value = 2\">link 2</a> (link, don't reload)<br />\n        <a id=\"link-3\" ng-href=\"/{{'123'}}\">link 3</a> (link, reload!)<br />\n        <a id=\"link-4\" href=\"\" name=\"xx\" ng-click=\"value = 4\">anchor</a> (link, don't reload)<br />\n        <a id=\"link-5\" name=\"xxx\" ng-click=\"value = 5\">anchor</a> (no link)<br />\n        <a id=\"link-6\" ng-href=\"{{value}}\">link</a> (link, change location)\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should execute ng-click but not reload when href without value', function() {\n          element(by.id('link-1')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('1');\n          expect(element(by.id('link-1')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when href empty string', function() {\n          element(by.id('link-2')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('2');\n          expect(element(by.id('link-2')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click and change url when ng-href specified', function() {\n          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\\/123$/);\n\n          element(by.id('link-3')).click();\n\n          // At this point, we navigate away from an AngularJS page, so we need\n          // to use browser.driver to get the base webdriver.\n\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/123$/);\n            });\n          }, 5000, 'page should navigate to /123');\n        });\n\n        it('should execute ng-click but not reload when href empty string and name specified', function() {\n          element(by.id('link-4')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('4');\n          expect(element(by.id('link-4')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when no href but name specified', function() {\n          element(by.id('link-5')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('5');\n          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);\n        });\n\n        it('should only change url when only ng-href', function() {\n          element(by.model('value')).clear();\n          element(by.model('value')).sendKeys('6');\n          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\\/6$/);\n\n          element(by.id('link-6')).click();\n\n          // At this point, we navigate away from an AngularJS page, so we need\n          // to use browser.driver to get the base webdriver.\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/6$/);\n            });\n          }, 5000, 'page should navigate to /6');\n        });\n      </file>\n    </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngSrc\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in a `src` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until AngularJS replaces the expression inside\n * `{{hash}}`. The `ngSrc` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrc any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngSrcset\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in a `srcset` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until AngularJS replaces the expression inside\n * `{{hash}}`. The `ngSrcset` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrcset any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngDisabled\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * This directive sets the `disabled` attribute on the element (typically a form control,\n * e.g. `input`, `button`, `select` etc.) if the\n * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `disabled`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-disabled\">\n      <file name=\"index.html\">\n        <label>Click me to toggle: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <button ng-model=\"button\" ng-disabled=\"checked\">Button</button>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle button', function() {\n          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,\n *     then the `disabled` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngChecked\n * @restrict A\n * @priority 100\n *\n * @description\n * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy.\n *\n * Note that this directive should not be used together with {@link ngModel `ngModel`},\n * as this can lead to unexpected behavior.\n *\n * A special directive is necessary because we cannot use interpolation inside the `checked`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-checked\">\n      <file name=\"index.html\">\n        <label>Check me to check both: <input type=\"checkbox\" ng-model=\"leader\"></label><br/>\n        <input id=\"checkFollower\" type=\"checkbox\" ng-checked=\"leader\" aria-label=\"Follower input\">\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should check both checkBoxes', function() {\n          expect(element(by.id('checkFollower')).getAttribute('checked')).toBeFalsy();\n          element(by.model('leader')).click();\n          expect(element(by.id('checkFollower')).getAttribute('checked')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,\n *     then the `checked` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngReadonly\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `readonly` attribute on the element, if the expression inside `ngReadonly` is truthy.\n * Note that `readonly` applies only to `input` elements with specific types. [See the input docs on\n * MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-readonly) for more information.\n *\n * A special directive is necessary because we cannot use interpolation inside the `readonly`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-readonly\">\n      <file name=\"index.html\">\n        <label>Check me to make text readonly: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <input type=\"text\" ng-readonly=\"checked\" value=\"I'm AngularJS\" aria-label=\"Readonly field\" />\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle readonly attr', function() {\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,\n *     then special attribute \"readonly\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSelected\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `selected`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * <div class=\"alert alert-warning\">\n *   **Note:** `ngSelected` does not interact with the `select` and `ngModel` directives, it only\n *   sets the `selected` attribute on the element. If you are using `ngModel` on the select, you\n *   should not use `ngSelected` on the options, as `ngModel` will set the select value and\n *   selected options.\n * </div>\n *\n * @example\n    <example name=\"ng-selected\">\n      <file name=\"index.html\">\n        <label>Check me to select: <input type=\"checkbox\" ng-model=\"selected\"></label><br/>\n        <select aria-label=\"ngSelected demo\">\n          <option>Hello!</option>\n          <option id=\"greet\" ng-selected=\"selected\">Greetings!</option>\n        </select>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should select Greetings!', function() {\n          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();\n          element(by.model('selected')).click();\n          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element OPTION\n * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,\n *     then special attribute \"selected\" will be set on the element\n */\n\n/**\n * @ngdoc directive\n * @name ngOpen\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `open`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * ## A note about browser compatibility\n *\n * Internet Explorer and Edge do not support the `details` element, it is\n * recommended to use {@link ng.ngShow} and {@link ng.ngHide} instead.\n *\n * @example\n     <example name=\"ng-open\">\n       <file name=\"index.html\">\n         <label>Toggle details: <input type=\"checkbox\" ng-model=\"open\"></label><br/>\n         <details id=\"details\" ng-open=\"open\">\n            <summary>List</summary>\n            <ul>\n              <li>Apple</li>\n              <li>Orange</li>\n              <li>Durian</li>\n            </ul>\n         </details>\n       </file>\n       <file name=\"protractor.js\" type=\"protractor\">\n         it('should toggle open', function() {\n           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();\n           element(by.model('open')).click();\n           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();\n         });\n       </file>\n     </example>\n *\n * @element DETAILS\n * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,\n *     then special attribute \"open\" will be set on the element\n */\n\nvar ngAttributeAliasDirectives = {};\n\n// boolean attrs are evaluated\nforEach(BOOLEAN_ATTR, function(propName, attrName) {\n  // binding to multiple is not supported\n  if (propName === 'multiple') return;\n\n  function defaultLinkFn(scope, element, attr) {\n    scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {\n      attr.$set(attrName, !!value);\n    });\n  }\n\n  var normalized = directiveNormalize('ng-' + attrName);\n  var linkFn = defaultLinkFn;\n\n  if (propName === 'checked') {\n    linkFn = function(scope, element, attr) {\n      // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input\n      if (attr.ngModel !== attr[normalized]) {\n        defaultLinkFn(scope, element, attr);\n      }\n    };\n  }\n\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      restrict: 'A',\n      priority: 100,\n      link: linkFn\n    };\n  };\n});\n\n// aliased input attrs are evaluated\nforEach(ALIASED_ATTR, function(htmlAttr, ngAttr) {\n  ngAttributeAliasDirectives[ngAttr] = function() {\n    return {\n      priority: 100,\n      link: function(scope, element, attr) {\n        //special case ngPattern when a literal regular expression value\n        //is used as the expression (this way we don't have to watch anything).\n        if (ngAttr === 'ngPattern' && attr.ngPattern.charAt(0) === '/') {\n          var match = attr.ngPattern.match(REGEX_STRING_REGEXP);\n          if (match) {\n            attr.$set('ngPattern', new RegExp(match[1], match[2]));\n            return;\n          }\n        }\n\n        scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) {\n          attr.$set(ngAttr, value);\n        });\n      }\n    };\n  };\n});\n\n// ng-src, ng-srcset, ng-href are interpolated\nforEach(['src', 'srcset', 'href'], function(attrName) {\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      priority: 99, // it needs to run after the attributes are interpolated\n      link: function(scope, element, attr) {\n        var propName = attrName,\n            name = attrName;\n\n        if (attrName === 'href' &&\n            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {\n          name = 'xlinkHref';\n          attr.$attr[name] = 'xlink:href';\n          propName = null;\n        }\n\n        attr.$observe(normalized, function(value) {\n          if (!value) {\n            if (attrName === 'href') {\n              attr.$set(name, null);\n            }\n            return;\n          }\n\n          attr.$set(name, value);\n\n          // Support: IE 9-11 only\n          // On IE, if \"ng:src\" directive declaration is used and \"src\" attribute doesn't exist\n          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need\n          // to set the property as well to achieve the desired effect.\n          // We use attr[attrName] value since $set can sanitize the url.\n          if (msie && propName) element.prop(propName, attr[name]);\n        });\n      }\n    };\n  };\n});\n\n/* global -nullFormCtrl, -PENDING_CLASS, -SUBMITTED_CLASS\n */\nvar nullFormCtrl = {\n  $addControl: noop,\n  $$renameControl: nullFormRenameControl,\n  $removeControl: noop,\n  $setValidity: noop,\n  $setDirty: noop,\n  $setPristine: noop,\n  $setSubmitted: noop\n},\nPENDING_CLASS = 'ng-pending',\nSUBMITTED_CLASS = 'ng-submitted';\n\nfunction nullFormRenameControl(control, name) {\n  control.$name = name;\n}\n\n/**\n * @ngdoc type\n * @name form.FormController\n *\n * @property {boolean} $pristine True if user has not interacted with the form yet.\n * @property {boolean} $dirty True if user has already interacted with the form.\n * @property {boolean} $valid True if all of the containing forms and controls are valid.\n * @property {boolean} $invalid True if at least one containing control or form is invalid.\n * @property {boolean} $submitted True if user has submitted the form even if its invalid.\n *\n * @property {Object} $pending An object hash, containing references to controls or forms with\n *  pending validators, where:\n *\n *  - keys are validations tokens (error names).\n *  - values are arrays of controls or forms that have a pending validator for the given error name.\n *\n * See {@link form.FormController#$error $error} for a list of built-in validation tokens.\n *\n * @property {Object} $error An object hash, containing references to controls or forms with failing\n *  validators, where:\n *\n *  - keys are validation tokens (error names),\n *  - values are arrays of controls or forms that have a failing validator for the given error name.\n *\n *  Built-in validation tokens:\n *  - `email`\n *  - `max`\n *  - `maxlength`\n *  - `min`\n *  - `minlength`\n *  - `number`\n *  - `pattern`\n *  - `required`\n *  - `url`\n *  - `date`\n *  - `datetimelocal`\n *  - `time`\n *  - `week`\n *  - `month`\n *\n * @description\n * `FormController` keeps track of all its controls and nested forms as well as the state of them,\n * such as being valid/invalid or dirty/pristine.\n *\n * Each {@link ng.directive:form form} directive creates an instance\n * of `FormController`.\n *\n */\n//asks for $scope to fool the BC controller module\nFormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate'];\nfunction FormController($element, $attrs, $scope, $animate, $interpolate) {\n  this.$$controls = [];\n\n  // init state\n  this.$error = {};\n  this.$$success = {};\n  this.$pending = undefined;\n  this.$name = $interpolate($attrs.name || $attrs.ngForm || '')($scope);\n  this.$dirty = false;\n  this.$pristine = true;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$submitted = false;\n  this.$$parentForm = nullFormCtrl;\n\n  this.$$element = $element;\n  this.$$animate = $animate;\n\n  setupValidity(this);\n}\n\nFormController.prototype = {\n  /**\n   * @ngdoc method\n   * @name form.FormController#$rollbackViewValue\n   *\n   * @description\n   * Rollback all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is typically needed by the reset button of\n   * a form that uses `ng-model-options` to pend updates.\n   */\n  $rollbackViewValue: function() {\n    forEach(this.$$controls, function(control) {\n      control.$rollbackViewValue();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$commitViewValue\n   *\n   * @description\n   * Commit all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  $commitViewValue: function() {\n    forEach(this.$$controls, function(control) {\n      control.$commitViewValue();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$addControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Register a control with the form. Input elements using ngModelController do this automatically\n   * when they are linked.\n   *\n   * Note that the current state of the control will not be reflected on the new parent form. This\n   * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine`\n   * state.\n   *\n   * However, if the method is used programmatically, for example by adding dynamically created controls,\n   * or controls that have been previously removed without destroying their corresponding DOM element,\n   * it's the developers responsibility to make sure the current state propagates to the parent form.\n   *\n   * For example, if an input control is added that is already `$dirty` and has `$error` properties,\n   * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form.\n   */\n  $addControl: function(control) {\n    // Breaking change - before, inputs whose name was \"hasOwnProperty\" were quietly ignored\n    // and not added to the scope.  Now we throw an error.\n    assertNotHasOwnProperty(control.$name, 'input');\n    this.$$controls.push(control);\n\n    if (control.$name) {\n      this[control.$name] = control;\n    }\n\n    control.$$parentForm = this;\n  },\n\n  // Private API: rename a form control\n  $$renameControl: function(control, newName) {\n    var oldName = control.$name;\n\n    if (this[oldName] === control) {\n      delete this[oldName];\n    }\n    this[newName] = control;\n    control.$name = newName;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$removeControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Deregister a control from the form.\n   *\n   * Input elements using ngModelController do this automatically when they are destroyed.\n   *\n   * Note that only the removed control's validation state (`$errors`etc.) will be removed from the\n   * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be\n   * different from case to case. For example, removing the only `$dirty` control from a form may or\n   * may not mean that the form is still `$dirty`.\n   */\n  $removeControl: function(control) {\n    if (control.$name && this[control.$name] === control) {\n      delete this[control.$name];\n    }\n    forEach(this.$pending, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n    forEach(this.$error, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n    forEach(this.$$success, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n\n    arrayRemove(this.$$controls, control);\n    control.$$parentForm = nullFormCtrl;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setDirty\n   *\n   * @description\n   * Sets the form to a dirty state.\n   *\n   * This method can be called to add the 'ng-dirty' class and set the form to a dirty\n   * state (ng-dirty class). This method will also propagate to parent forms.\n   */\n  $setDirty: function() {\n    this.$$animate.removeClass(this.$$element, PRISTINE_CLASS);\n    this.$$animate.addClass(this.$$element, DIRTY_CLASS);\n    this.$dirty = true;\n    this.$pristine = false;\n    this.$$parentForm.$setDirty();\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setPristine\n   *\n   * @description\n   * Sets the form to its pristine state.\n   *\n   * This method sets the form's `$pristine` state to true, the `$dirty` state to false, removes\n   * the `ng-dirty` class and adds the `ng-pristine` class. Additionally, it sets the `$submitted`\n   * state to false.\n   *\n   * This method will also propagate to all the controls contained in this form.\n   *\n   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after\n   * saving or resetting it.\n   */\n  $setPristine: function() {\n    this.$$animate.setClass(this.$$element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS);\n    this.$dirty = false;\n    this.$pristine = true;\n    this.$submitted = false;\n    forEach(this.$$controls, function(control) {\n      control.$setPristine();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setUntouched\n   *\n   * @description\n   * Sets the form to its untouched state.\n   *\n   * This method can be called to remove the 'ng-touched' class and set the form controls to their\n   * untouched state (ng-untouched class).\n   *\n   * Setting a form controls back to their untouched state is often useful when setting the form\n   * back to its pristine state.\n   */\n  $setUntouched: function() {\n    forEach(this.$$controls, function(control) {\n      control.$setUntouched();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setSubmitted\n   *\n   * @description\n   * Sets the form to its submitted state.\n   */\n  $setSubmitted: function() {\n    this.$$animate.addClass(this.$$element, SUBMITTED_CLASS);\n    this.$submitted = true;\n    this.$$parentForm.$setSubmitted();\n  }\n};\n\n/**\n * @ngdoc method\n * @name form.FormController#$setValidity\n *\n * @description\n * Change the validity state of the form, and notify the parent form (if any).\n *\n * Application developers will rarely need to call this method directly. It is used internally, by\n * {@link ngModel.NgModelController#$setValidity NgModelController.$setValidity()}, to propagate a\n * control's validity state to the parent `FormController`.\n *\n * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be\n *        assigned to either `$error[validationErrorKey]` or `$pending[validationErrorKey]` (for\n *        unfulfilled `$asyncValidators`), so that it is available for data-binding. The\n *        `validationErrorKey` should be in camelCase and will get converted into dash-case for\n *        class name. Example: `myError` will result in `ng-valid-my-error` and\n *        `ng-invalid-my-error` classes and can be bound to as `{{ someForm.$error.myError }}`.\n * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending\n *        (undefined),  or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n *        Skipped is used by AngularJS when validators do not run because of parse errors and when\n *        `$asyncValidators` do not run because any of the `$validators` failed.\n * @param {NgModelController | FormController} controller - The controller whose validity state is\n *        triggering the change.\n */\naddSetValidityMethod({\n  clazz: FormController,\n  set: function(object, property, controller) {\n    var list = object[property];\n    if (!list) {\n      object[property] = [controller];\n    } else {\n      var index = list.indexOf(controller);\n      if (index === -1) {\n        list.push(controller);\n      }\n    }\n  },\n  unset: function(object, property, controller) {\n    var list = object[property];\n    if (!list) {\n      return;\n    }\n    arrayRemove(list, controller);\n    if (list.length === 0) {\n      delete object[property];\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngForm\n * @restrict EAC\n *\n * @description\n * Nestable alias of {@link ng.directive:form `form`} directive. HTML\n * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a\n * sub-group of controls needs to be determined.\n *\n * Note: the purpose of `ngForm` is to group controls,\n * but not to be a replacement for the `<form>` tag with all of its capabilities\n * (e.g. posting to the server, ...).\n *\n * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n *\n */\n\n /**\n * @ngdoc directive\n * @name form\n * @restrict E\n *\n * @description\n * Directive that instantiates\n * {@link form.FormController FormController}.\n *\n * If the `name` attribute is specified, the form controller is published onto the current scope under\n * this name.\n *\n * ## Alias: {@link ng.directive:ngForm `ngForm`}\n *\n * In AngularJS, forms can be nested. This means that the outer form is valid when all of the child\n * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so\n * AngularJS provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to\n * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group\n * of controls needs to be determined.\n *\n * ## CSS classes\n *  - `ng-valid` is set if the form is valid.\n *  - `ng-invalid` is set if the form is invalid.\n *  - `ng-pending` is set if the form is pending.\n *  - `ng-pristine` is set if the form is pristine.\n *  - `ng-dirty` is set if the form is dirty.\n *  - `ng-submitted` is set if the form was submitted.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n *\n * ## Submitting a form and preventing the default action\n *\n * Since the role of forms in client-side AngularJS applications is different than in classical\n * roundtrip apps, it is desirable for the browser not to translate the form submission into a full\n * page reload that sends the data to the server. Instead some javascript logic should be triggered\n * to handle the form submission in an application-specific way.\n *\n * For this reason, AngularJS prevents the default action (form submission to the server) unless the\n * `<form>` element has an `action` attribute specified.\n *\n * You can use one of the following two ways to specify what javascript method should be called when\n * a form is submitted:\n *\n * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element\n * - {@link ng.directive:ngClick ngClick} directive on the first\n  *  button or input field of type submit (input[type=submit])\n *\n * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}\n * or {@link ng.directive:ngClick ngClick} directives.\n * This is because of the following form submission rules in the HTML specification:\n *\n * - If a form has only one input field then hitting enter in this field triggers form submit\n * (`ngSubmit`)\n * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter\n * doesn't trigger submit\n * - if a form has one or more input fields and one or more buttons or input[type=submit] then\n * hitting enter in any of the input fields will trigger the click handler on the *first* button or\n * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)\n *\n * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is\n * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * @animations\n * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.\n * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any\n * other validations that are performed within the form. Animations in ngForm are similar to how\n * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well\n * as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style a form element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-form {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-form.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n    <example name=\"ng-form\" deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"formExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('formExample', [])\n           .controller('FormController', ['$scope', function($scope) {\n             $scope.userType = 'guest';\n           }]);\n       </script>\n       <style>\n        .my-form {\n          transition:all linear 0.5s;\n          background: transparent;\n        }\n        .my-form.ng-invalid {\n          background: red;\n        }\n       </style>\n       <form name=\"myForm\" ng-controller=\"FormController\" class=\"my-form\">\n         userType: <input name=\"input\" ng-model=\"userType\" required>\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">Required!</span><br>\n         <code>userType = {{userType}}</code><br>\n         <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br>\n         <code>myForm.input.$error = {{myForm.input.$error}}</code><br>\n         <code>myForm.$valid = {{myForm.$valid}}</code><br>\n         <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should initialize to model', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n\n          expect(userType.getText()).toContain('guest');\n          expect(valid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var userInput = element(by.model('userType'));\n\n          userInput.clear();\n          userInput.sendKeys('');\n\n          expect(userType.getText()).toEqual('userType =');\n          expect(valid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n *\n * @param {string=} name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n */\nvar formDirectiveFactory = function(isNgForm) {\n  return ['$timeout', '$parse', function($timeout, $parse) {\n    var formDirective = {\n      name: 'form',\n      restrict: isNgForm ? 'EAC' : 'E',\n      require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form\n      controller: FormController,\n      compile: function ngFormCompile(formElement, attr) {\n        // Setup initial state of the control\n        formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS);\n\n        var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false);\n\n        return {\n          pre: function ngFormPreLink(scope, formElement, attr, ctrls) {\n            var controller = ctrls[0];\n\n            // if `action` attr is not present on the form, prevent the default action (submission)\n            if (!('action' in attr)) {\n              // we can't use jq events because if a form is destroyed during submission the default\n              // action is not prevented. see #1238\n              //\n              // IE 9 is not affected because it doesn't fire a submit event and try to do a full\n              // page reload if the form was destroyed by submission of the form via a click handler\n              // on a button in the form. Looks like an IE9 specific bug.\n              var handleFormSubmission = function(event) {\n                scope.$apply(function() {\n                  controller.$commitViewValue();\n                  controller.$setSubmitted();\n                });\n\n                event.preventDefault();\n              };\n\n              formElement[0].addEventListener('submit', handleFormSubmission);\n\n              // unregister the preventDefault listener so that we don't not leak memory but in a\n              // way that will achieve the prevention of the default action.\n              formElement.on('$destroy', function() {\n                $timeout(function() {\n                  formElement[0].removeEventListener('submit', handleFormSubmission);\n                }, 0, false);\n              });\n            }\n\n            var parentFormCtrl = ctrls[1] || controller.$$parentForm;\n            parentFormCtrl.$addControl(controller);\n\n            var setter = nameAttr ? getSetter(controller.$name) : noop;\n\n            if (nameAttr) {\n              setter(scope, controller);\n              attr.$observe(nameAttr, function(newValue) {\n                if (controller.$name === newValue) return;\n                setter(scope, undefined);\n                controller.$$parentForm.$$renameControl(controller, newValue);\n                setter = getSetter(controller.$name);\n                setter(scope, controller);\n              });\n            }\n            formElement.on('$destroy', function() {\n              controller.$$parentForm.$removeControl(controller);\n              setter(scope, undefined);\n              extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards\n            });\n          }\n        };\n      }\n    };\n\n    return formDirective;\n\n    function getSetter(expression) {\n      if (expression === '') {\n        //create an assignable expression, so forms with an empty name can be renamed later\n        return $parse('this[\"\"]').assign;\n      }\n      return $parse(expression).assign || noop;\n    }\n  }];\n};\n\nvar formDirective = formDirectiveFactory();\nvar ngFormDirective = formDirectiveFactory(true);\n\n\n\n// helper methods\nfunction setupValidity(instance) {\n  instance.$$classCache = {};\n  instance.$$classCache[INVALID_CLASS] = !(instance.$$classCache[VALID_CLASS] = instance.$$element.hasClass(VALID_CLASS));\n}\nfunction addSetValidityMethod(context) {\n  var clazz = context.clazz,\n      set = context.set,\n      unset = context.unset;\n\n  clazz.prototype.$setValidity = function(validationErrorKey, state, controller) {\n    if (isUndefined(state)) {\n      createAndSet(this, '$pending', validationErrorKey, controller);\n    } else {\n      unsetAndCleanup(this, '$pending', validationErrorKey, controller);\n    }\n    if (!isBoolean(state)) {\n      unset(this.$error, validationErrorKey, controller);\n      unset(this.$$success, validationErrorKey, controller);\n    } else {\n      if (state) {\n        unset(this.$error, validationErrorKey, controller);\n        set(this.$$success, validationErrorKey, controller);\n      } else {\n        set(this.$error, validationErrorKey, controller);\n        unset(this.$$success, validationErrorKey, controller);\n      }\n    }\n    if (this.$pending) {\n      cachedToggleClass(this, PENDING_CLASS, true);\n      this.$valid = this.$invalid = undefined;\n      toggleValidationCss(this, '', null);\n    } else {\n      cachedToggleClass(this, PENDING_CLASS, false);\n      this.$valid = isObjectEmpty(this.$error);\n      this.$invalid = !this.$valid;\n      toggleValidationCss(this, '', this.$valid);\n    }\n\n    // re-read the state as the set/unset methods could have\n    // combined state in this.$error[validationError] (used for forms),\n    // where setting/unsetting only increments/decrements the value,\n    // and does not replace it.\n    var combinedState;\n    if (this.$pending && this.$pending[validationErrorKey]) {\n      combinedState = undefined;\n    } else if (this.$error[validationErrorKey]) {\n      combinedState = false;\n    } else if (this.$$success[validationErrorKey]) {\n      combinedState = true;\n    } else {\n      combinedState = null;\n    }\n\n    toggleValidationCss(this, validationErrorKey, combinedState);\n    this.$$parentForm.$setValidity(validationErrorKey, combinedState, this);\n  };\n\n  function createAndSet(ctrl, name, value, controller) {\n    if (!ctrl[name]) {\n      ctrl[name] = {};\n    }\n    set(ctrl[name], value, controller);\n  }\n\n  function unsetAndCleanup(ctrl, name, value, controller) {\n    if (ctrl[name]) {\n      unset(ctrl[name], value, controller);\n    }\n    if (isObjectEmpty(ctrl[name])) {\n      ctrl[name] = undefined;\n    }\n  }\n\n  function cachedToggleClass(ctrl, className, switchValue) {\n    if (switchValue && !ctrl.$$classCache[className]) {\n      ctrl.$$animate.addClass(ctrl.$$element, className);\n      ctrl.$$classCache[className] = true;\n    } else if (!switchValue && ctrl.$$classCache[className]) {\n      ctrl.$$animate.removeClass(ctrl.$$element, className);\n      ctrl.$$classCache[className] = false;\n    }\n  }\n\n  function toggleValidationCss(ctrl, validationErrorKey, isValid) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n\n    cachedToggleClass(ctrl, VALID_CLASS + validationErrorKey, isValid === true);\n    cachedToggleClass(ctrl, INVALID_CLASS + validationErrorKey, isValid === false);\n  }\n}\n\nfunction isObjectEmpty(obj) {\n  if (obj) {\n    for (var prop in obj) {\n      if (obj.hasOwnProperty(prop)) {\n        return false;\n      }\n    }\n  }\n  return true;\n}\n\n/* global\n  VALID_CLASS: false,\n  INVALID_CLASS: false,\n  PRISTINE_CLASS: false,\n  DIRTY_CLASS: false,\n  ngModelMinErr: false\n*/\n\n// Regex code was initially obtained from SO prior to modification: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231\nvar ISO_DATE_REGEXP = /^\\d{4,}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\d\\.\\d+(?:[+-][0-2]\\d:[0-5]\\d|Z)$/;\n// See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987)\n// Note: We are being more lenient, because browsers are too.\n//   1. Scheme\n//   2. Slashes\n//   3. Username\n//   4. Password\n//   5. Hostname\n//   6. Port\n//   7. Path\n//   8. Query\n//   9. Fragment\n//                 1111111111111111 222   333333    44444        55555555555555555555555     666     77777777     8888888     999\nvar URL_REGEXP = /^[a-z][a-z\\d.+-]*:\\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\\s:/?#]+|\\[[a-f\\d:]+])(?::\\d+)?(?:\\/[^?#]*)?(?:\\?[^#]*)?(?:#.*)?$/i;\n// eslint-disable-next-line max-len\nvar EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+(\\.[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+)*@[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?(\\.[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?)*$/;\nvar NUMBER_REGEXP = /^\\s*(-|\\+)?(\\d+|(\\d*(\\.\\d*)))([eE][+-]?\\d+)?\\s*$/;\nvar DATE_REGEXP = /^(\\d{4,})-(\\d{2})-(\\d{2})$/;\nvar DATETIMELOCAL_REGEXP = /^(\\d{4,})-(\\d\\d)-(\\d\\d)T(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\nvar WEEK_REGEXP = /^(\\d{4,})-W(\\d\\d)$/;\nvar MONTH_REGEXP = /^(\\d{4,})-(\\d\\d)$/;\nvar TIME_REGEXP = /^(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\n\nvar PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown';\nvar PARTIAL_VALIDATION_TYPES = createMap();\nforEach('date,datetime-local,month,time,week'.split(','), function(type) {\n  PARTIAL_VALIDATION_TYPES[type] = true;\n});\n\nvar inputType = {\n\n  /**\n   * @ngdoc input\n   * @name input[text]\n   *\n   * @description\n   * Standard HTML text input with AngularJS data binding, inherited by most of the `input` elements.\n   *\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Adds `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n   *    This parameter is ignored for input[type=password] controls, which will never trim the\n   *    input.\n   *\n   * @example\n      <example name=\"text-input-directive\" module=\"textInputExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('textInputExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 text: 'guest',\n                 word: /^\\s*\\w*\\s*$/\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Single word:\n             <input type=\"text\" name=\"input\" ng-model=\"example.text\"\n                    ng-pattern=\"example.word\" required ng-trim=\"false\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.pattern\">\n               Single word only!</span>\n           </div>\n           <code>text = {{example.text}}</code><br/>\n           <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br/>\n           <code>myForm.input.$error = {{myForm.input.$error}}</code><br/>\n           <code>myForm.$valid = {{myForm.$valid}}</code><br/>\n           <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('example.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('guest');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if multi word', function() {\n            input.clear();\n            input.sendKeys('hello world');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'text': textInputType,\n\n    /**\n     * @ngdoc input\n     * @name input[date]\n     *\n     * @description\n     * Input with date validation and transformation. In browsers that do not yet support\n     * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601\n     * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many\n     * modern browsers do not yet support this input type, it is important to provide cues to users on the\n     * expected input format via a placeholder or label.\n     *\n     * The model must always be a Date object, otherwise AngularJS will throw an error.\n     * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n     *\n     * The timezone to be used to read/write the `Date` instance in the model can be defined using\n     * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n     *\n     * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n     * @param {string=} name Property name of the form under which the control is published.\n     * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n     *   valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `min=\"{{minDate | date:'yyyy-MM-dd'}}\"`). Note that `min` will also add native HTML5\n     *   constraint validation.\n     * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n     *   a valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `max=\"{{maxDate | date:'yyyy-MM-dd'}}\"`). Note that `max` will also add native HTML5\n     *   constraint validation.\n     * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO date string\n     *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n     * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO date string\n     *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n     * @param {string=} required Sets `required` validation error key if the value is not entered.\n     * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n     *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n     *    `required` when you want to data-bind to the `required` attribute.\n     * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n     *    interaction with the input element.\n     *\n     * @example\n     <example name=\"date-input-directive\" module=\"dateInputExample\">\n     <file name=\"index.html\">\n       <script>\n          angular.module('dateInputExample', [])\n            .controller('DateController', ['$scope', function($scope) {\n              $scope.example = {\n                value: new Date(2013, 9, 22)\n              };\n            }]);\n       </script>\n       <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n          <label for=\"exampleInput\">Pick a date in 2013:</label>\n          <input type=\"date\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n              placeholder=\"yyyy-MM-dd\" min=\"2013-01-01\" max=\"2013-12-31\" required />\n          <div role=\"alert\">\n            <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                Required!</span>\n            <span class=\"error\" ng-show=\"myForm.input.$error.date\">\n                Not a valid date!</span>\n           </div>\n           <tt>value = {{example.value | date: \"yyyy-MM-dd\"}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n       </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        var value = element(by.binding('example.value | date: \"yyyy-MM-dd\"'));\n        var valid = element(by.binding('myForm.input.$valid'));\n\n        // currently protractor/webdriver does not support\n        // sending keys to all known HTML5 input controls\n        // for various browsers (see https://github.com/angular/protractor/issues/562).\n        function setInput(val) {\n          // set the value of the element and force validation.\n          var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n          \"ipt.value = '\" + val + \"';\" +\n          \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n          browser.executeScript(scr);\n        }\n\n        it('should initialize to model', function() {\n          expect(value.getText()).toContain('2013-10-22');\n          expect(valid.getText()).toContain('myForm.input.$valid = true');\n        });\n\n        it('should be invalid if empty', function() {\n          setInput('');\n          expect(value.getText()).toEqual('value =');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n\n        it('should be invalid if over max', function() {\n          setInput('2015-01-01');\n          expect(value.getText()).toContain('');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n     </file>\n     </example>\n     */\n  'date': createDateInputType('date', DATE_REGEXP,\n         createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']),\n         'yyyy-MM-dd'),\n\n   /**\n    * @ngdoc input\n    * @name input[datetime-local]\n    *\n    * @description\n    * Input with datetime validation and transformation. In browsers that do not yet support\n    * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.\n    *\n    * The model must always be a Date object, otherwise AngularJS will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `min=\"{{minDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `min` will also add native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `max=\"{{maxDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `max` will also add native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation error key to the Date / ISO datetime string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation error key to the Date / ISO datetime string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"datetimelocal-input-directive\" module=\"dateExample\">\n    <file name=\"index.html\">\n      <script>\n        angular.module('dateExample', [])\n          .controller('DateController', ['$scope', function($scope) {\n            $scope.example = {\n              value: new Date(2010, 11, 28, 14, 57)\n            };\n          }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a date between in 2013:</label>\n        <input type=\"datetime-local\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"yyyy-MM-ddTHH:mm:ss\" min=\"2001-01-01T00:00:00\" max=\"2013-12-31T00:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.datetimelocal\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-MM-ddTHH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM-ddTHH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2010-12-28T14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01-01T23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP,\n      createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']),\n      'yyyy-MM-ddTHH:mm:ss.sss'),\n\n  /**\n   * @ngdoc input\n   * @name input[time]\n   *\n   * @description\n   * Input with time validation and transformation. In browsers that do not yet support\n   * the HTML5 time input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a\n   * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.\n   *\n   * The model must always be a Date object, otherwise AngularJS will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minTime | date:'HH:mm:ss'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxTime | date:'HH:mm:ss'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO time string the\n   *   `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO time string the\n   *   `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"time-input-directive\" module=\"timeExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('timeExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(1970, 0, 1, 14, 57, 0)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a time between 8am and 5pm:</label>\n        <input type=\"time\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"HH:mm:ss\" min=\"08:00:00\" max=\"17:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.time\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"HH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"HH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'time': createDateInputType('time', TIME_REGEXP,\n      createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']),\n     'HH:mm:ss.sss'),\n\n   /**\n    * @ngdoc input\n    * @name input[week]\n    *\n    * @description\n    * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support\n    * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * week format (yyyy-W##), for example: `2013-W02`.\n    *\n    * The model must always be a Date object, otherwise AngularJS will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `min=\"{{minWeek | date:'yyyy-Www'}}\"`). Note that `min` will also add\n    *   native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `max=\"{{maxWeek | date:'yyyy-Www'}}\"`). Note that `max` will also add\n    *   native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"week-input-directive\" module=\"weekExample\">\n    <file name=\"index.html\">\n      <script>\n      angular.module('weekExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 0, 3)\n          };\n        }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label>Pick a date between in 2013:\n          <input id=\"exampleInput\" type=\"week\" name=\"input\" ng-model=\"example.value\"\n                 placeholder=\"YYYY-W##\" min=\"2012-W32\"\n                 max=\"2013-W52\" required />\n        </label>\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.week\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-Www\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-Www\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-W01');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-W01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'),\n\n  /**\n   * @ngdoc input\n   * @name input[month]\n   *\n   * @description\n   * Input with month validation and transformation. In browsers that do not yet support\n   * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * month format (yyyy-MM), for example: `2009-01`.\n   *\n   * The model must always be a Date object, otherwise AngularJS will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   * If the model is not set to the first of the month, the next view to model update will set it\n   * to the first of the month.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minMonth | date:'yyyy-MM'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxMonth | date:'yyyy-MM'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n   *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n   *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"month-input-directive\" module=\"monthExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('monthExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 9, 1)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n       <label for=\"exampleInput\">Pick a month in 2013:</label>\n       <input id=\"exampleInput\" type=\"month\" name=\"input\" ng-model=\"example.value\"\n          placeholder=\"yyyy-MM\" min=\"2013-01\" max=\"2013-12\" required />\n       <div role=\"alert\">\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n         <span class=\"error\" ng-show=\"myForm.input.$error.month\">\n            Not a valid month!</span>\n       </div>\n       <tt>value = {{example.value | date: \"yyyy-MM\"}}</tt><br/>\n       <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n       <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n       <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n       <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-10');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'month': createDateInputType('month', MONTH_REGEXP,\n     createDateParser(MONTH_REGEXP, ['yyyy', 'MM']),\n     'yyyy-MM'),\n\n  /**\n   * @ngdoc input\n   * @name input[number]\n   *\n   * @description\n   * Text input with number validation and transformation. Sets the `number` validation\n   * error if not a valid number.\n   *\n   * <div class=\"alert alert-warning\">\n   * The model must always be of type `number` otherwise AngularJS will throw an error.\n   * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt}\n   * error docs for more information and an example of how to convert your model if necessary.\n   * </div>\n   *\n   * ## Issues with HTML5 constraint validation\n   *\n   * In browsers that follow the\n   * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29),\n   * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}.\n   * If a non-number is entered in the input, the browser will report the value as an empty string,\n   * which means the view / model values in `ngModel` and subsequently the scope value\n   * will also be an empty string.\n   *\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *    Can be interpolated.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *    Can be interpolated.\n   * @param {string=} ngMin Like `min`, sets the `min` validation error key if the value entered is less than `ngMin`,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} ngMax Like `max`, sets the `max` validation error key if the value entered is greater than `ngMax`,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} step Sets the `step` validation error key if the value entered does not fit the `step` constraint.\n   *    Can be interpolated.\n   * @param {string=} ngStep Like `step`, sets the `step` validation error key if the value entered does not fit the `ngStep` constraint,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"number-input-directive\" module=\"numberExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('numberExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 value: 12\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Number:\n             <input type=\"number\" name=\"input\" ng-model=\"example.value\"\n                    min=\"0\" max=\"99\" required>\n          </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.number\">\n               Not valid number!</span>\n           </div>\n           <tt>value = {{example.value}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var value = element(by.binding('example.value'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.value'));\n\n          it('should initialize to model', function() {\n            expect(value.getText()).toContain('12');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if over max', function() {\n            input.clear();\n            input.sendKeys('123');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'number': numberInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[url]\n   *\n   * @description\n   * Text input with URL validation. Sets the `url` validation error key if the content is not a\n   * valid URL.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[url]` uses a regex to validate urls that is derived from the regex\n   * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify\n   * the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"url-input-directive\" module=\"urlExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('urlExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.url = {\n                 text: 'http://google.com'\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>URL:\n             <input type=\"url\" name=\"input\" ng-model=\"url.text\" required>\n           <label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.url\">\n               Not valid url!</span>\n           </div>\n           <tt>text = {{url.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('url.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('url.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('http://google.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not url', function() {\n            input.clear();\n            input.sendKeys('box');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'url': urlInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[email]\n   *\n   * @description\n   * Text input with email validation. Sets the `email` validation error key if not a valid email\n   * address.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex\n   * used in Chromium. If you need stricter validation (e.g. requiring a top-level domain), you can\n   * use `ng-pattern` or modify the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"email-input-directive\" module=\"emailExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('emailExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.email = {\n                 text: 'me@example.com'\n               };\n             }]);\n         </script>\n           <form name=\"myForm\" ng-controller=\"ExampleController\">\n             <label>Email:\n               <input type=\"email\" name=\"input\" ng-model=\"email.text\" required>\n             </label>\n             <div role=\"alert\">\n               <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                 Required!</span>\n               <span class=\"error\" ng-show=\"myForm.input.$error.email\">\n                 Not valid email!</span>\n             </div>\n             <tt>text = {{email.text}}</tt><br/>\n             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>\n           </form>\n         </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('email.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('email.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('me@example.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not email', function() {\n            input.clear();\n            input.sendKeys('xxx');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'email': emailInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[radio]\n   *\n   * @description\n   * HTML radio button.\n   *\n   * **Note:**<br>\n   * All inputs controlled by {@link ngModel ngModel} (including those of type `radio`) will use the\n   * value of their `name` attribute to determine the property under which their\n   * {@link ngModel.NgModelController NgModelController} will be published on the parent\n   * {@link form.FormController FormController}. Thus, if you use the same `name` for multiple\n   * inputs of a form (e.g. a group of radio inputs), only _one_ `NgModelController` will be\n   * published on the parent `FormController` under that name. The rest of the controllers will\n   * continue to work as expected, but you won't be able to access them as properties on the parent\n   * `FormController`.\n   *\n   * <div class=\"alert alert-info\">\n   *   <p>\n   *     In plain HTML forms, the `name` attribute is used to identify groups of radio inputs, so\n   *     that the browser can manage their state (checked/unchecked) based on the state of other\n   *     inputs in the same group.\n   *   </p>\n   *   <p>\n   *     In AngularJS forms, this is not necessary. The input's state will be updated based on the\n   *     value of the underlying model data.\n   *   </p>\n   * </div>\n   *\n   * <div class=\"alert alert-success\">\n   *   If you omit the `name` attribute on a radio input, `ngModel` will automatically assign it a\n   *   unique name.\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string} value The value to which the `ngModel` expression should be set when selected.\n   *    Note that `value` only supports `string` values, i.e. the scope model needs to be a string,\n   *    too. Use `ngValue` if you need complex models (`number`, `object`, ...).\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {string} ngValue AngularJS expression to which `ngModel` will be be set when the radio\n   *    is selected. Should be used instead of the `value` attribute if you need\n   *    a non-string `ngModel` (`boolean`, `array`, ...).\n   *\n   * @example\n      <example name=\"radio-input-directive\" module=\"radioExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('radioExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.color = {\n                 name: 'blue'\n               };\n               $scope.specialValue = {\n                 \"id\": \"12345\",\n                 \"value\": \"green\"\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"red\">\n             Red\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" ng-value=\"specialValue\">\n             Green\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"blue\">\n             Blue\n           </label><br/>\n           <tt>color = {{color.name | json}}</tt><br/>\n          </form>\n          Note that `ng-value=\"specialValue\"` sets radio item's value to be the value of `$scope.specialValue`.\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var inputs = element.all(by.model('color.name'));\n            var color = element(by.binding('color.name'));\n\n            expect(color.getText()).toContain('blue');\n\n            inputs.get(0).click();\n            expect(color.getText()).toContain('red');\n\n            inputs.get(1).click();\n            expect(color.getText()).toContain('green');\n          });\n        </file>\n      </example>\n   */\n  'radio': radioInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[range]\n   *\n   * @description\n   * Native range input with validation and transformation.\n   *\n   * The model for the range input must always be a `Number`.\n   *\n   * IE9 and other browsers that do not support the `range` type fall back\n   * to a text input without any default values for `min`, `max` and `step`. Model binding,\n   * validation and number parsing are nevertheless supported.\n   *\n   * Browsers that support range (latest Chrome, Safari, Firefox, Edge) treat `input[range]`\n   * in a way that never allows the input to hold an invalid value. That means:\n   * - any non-numerical value is set to `(max + min) / 2`.\n   * - any numerical value that is less than the current min val, or greater than the current max val\n   * is set to the min / max val respectively.\n   * - additionally, the current `step` is respected, so the nearest value that satisfies a step\n   * is used.\n   *\n   * See the [HTML Spec on input[type=range]](https://www.w3.org/TR/html5/forms.html#range-state-(type=range))\n   * for more info.\n   *\n   * This has the following consequences for AngularJS:\n   *\n   * Since the element value should always reflect the current model value, a range input\n   * will set the bound ngModel expression to the value that the browser has set for the\n   * input element. For example, in the following input `<input type=\"range\" ng-model=\"model.value\">`,\n   * if the application sets `model.value = null`, the browser will set the input to `'50'`.\n   * AngularJS will then set the model to `50`, to prevent input and model value being out of sync.\n   *\n   * That means the model for range will immediately be set to `50` after `ngModel` has been\n   * initialized. It also means a range input can never have the required error.\n   *\n   * This does not only affect changes to the model value, but also to the values of the `min`,\n   * `max`, and `step` attributes. When these change in a way that will cause the browser to modify\n   * the input value, AngularJS will also update the model value.\n   *\n   * Automatic value adjustment also means that a range input element can never have the `required`,\n   * `min`, or `max` errors.\n   *\n   * However, `step` is currently only fully implemented by Firefox. Other browsers have problems\n   * when the step value changes dynamically - they do not adjust the element value correctly, but\n   * instead may set the `stepMismatch` error. If that's the case, the AngularJS will set the `step`\n   * error on the input, and set the model to `undefined`.\n   *\n   * Note that `input[range]` is not compatible with`ngMax`, `ngMin`, and `ngStep`, because they do\n   * not set the `min` and `max` attributes, which means that the browser won't automatically adjust\n   * the input value based on their values, and will always assume min = 0, max = 100, and step = 1.\n   *\n   * @param {string}  ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation to ensure that the value entered is greater\n   *                  than `min`. Can be interpolated.\n   * @param {string=} max Sets the `max` validation to ensure that the value entered is less than `max`.\n   *                  Can be interpolated.\n   * @param {string=} step Sets the `step` validation to ensure that the value entered matches the `step`\n   *                  Can be interpolated.\n   * @param {string=} ngChange AngularJS expression to be executed when the ngModel value changes due\n   *                  to user interaction with the input element.\n   * @param {expression=} ngChecked If the expression is truthy, then the `checked` attribute will be set on the\n   *                      element. **Note** : `ngChecked` should not be used alongside `ngModel`.\n   *                      Checkout {@link ng.directive:ngChecked ngChecked} for usage.\n   *\n   * @example\n      <example name=\"range-input-directive\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n\n            Model as range: <input type=\"range\" name=\"range\" ng-model=\"value\" min=\"{{min}}\"  max=\"{{max}}\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   * ## Range Input with ngMin & ngMax attributes\n\n   * @example\n      <example name=\"range-input-directive-ng\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n            Model as range: <input type=\"range\" name=\"range\" ng-model=\"value\" ng-min=\"min\" ng-max=\"max\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   */\n  'range': rangeInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[checkbox]\n   *\n   * @description\n   * HTML checkbox.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {expression=} ngTrueValue The value to which the expression should be set when selected.\n   * @param {expression=} ngFalseValue The value to which the expression should be set when not selected.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"checkbox-input-directive\" module=\"checkboxExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('checkboxExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.checkboxModel = {\n                value1 : true,\n                value2 : 'YES'\n              };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Value1:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value1\">\n           </label><br/>\n           <label>Value2:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value2\"\n                    ng-true-value=\"'YES'\" ng-false-value=\"'NO'\">\n            </label><br/>\n           <tt>value1 = {{checkboxModel.value1}}</tt><br/>\n           <tt>value2 = {{checkboxModel.value2}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var value1 = element(by.binding('checkboxModel.value1'));\n            var value2 = element(by.binding('checkboxModel.value2'));\n\n            expect(value1.getText()).toContain('true');\n            expect(value2.getText()).toContain('YES');\n\n            element(by.model('checkboxModel.value1')).click();\n            element(by.model('checkboxModel.value2')).click();\n\n            expect(value1.getText()).toContain('false');\n            expect(value2.getText()).toContain('NO');\n          });\n        </file>\n      </example>\n   */\n  'checkbox': checkboxInputType,\n\n  'hidden': noop,\n  'button': noop,\n  'submit': noop,\n  'reset': noop,\n  'file': noop\n};\n\nfunction stringBasedInputType(ctrl) {\n  ctrl.$formatters.push(function(value) {\n    return ctrl.$isEmpty(value) ? value : value.toString();\n  });\n}\n\nfunction textInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n}\n\nfunction baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  var type = lowercase(element[0].type);\n\n  // In composition mode, users are still inputting intermediate text buffer,\n  // hold the listener until composition is done.\n  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent\n  if (!$sniffer.android) {\n    var composing = false;\n\n    element.on('compositionstart', function() {\n      composing = true;\n    });\n\n    // Support: IE9+\n    element.on('compositionupdate', function(ev) {\n      // End composition when ev.data is empty string on 'compositionupdate' event.\n      // When the input de-focusses (e.g. by clicking away), IE triggers 'compositionupdate'\n      // instead of 'compositionend'.\n      if (isUndefined(ev.data) || ev.data === '') {\n        composing = false;\n      }\n    });\n\n    element.on('compositionend', function() {\n      composing = false;\n      listener();\n    });\n  }\n\n  var timeout;\n\n  var listener = function(ev) {\n    if (timeout) {\n      $browser.defer.cancel(timeout);\n      timeout = null;\n    }\n    if (composing) return;\n    var value = element.val(),\n        event = ev && ev.type;\n\n    // By default we will trim the value\n    // If the attribute ng-trim exists we will avoid trimming\n    // If input type is 'password', the value is never trimmed\n    if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) {\n      value = trim(value);\n    }\n\n    // If a control is suffering from bad input (due to native validators), browsers discard its\n    // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the\n    // control's value is the same empty value twice in a row.\n    if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) {\n      ctrl.$setViewValue(value, event);\n    }\n  };\n\n  // if the browser does support \"input\" event, we are fine - except on IE9 which doesn't fire the\n  // input event on backspace, delete or cut\n  if ($sniffer.hasEvent('input')) {\n    element.on('input', listener);\n  } else {\n    var deferListener = function(ev, input, origValue) {\n      if (!timeout) {\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (!input || input.value !== origValue) {\n            listener(ev);\n          }\n        });\n      }\n    };\n\n    element.on('keydown', /** @this */ function(event) {\n      var key = event.keyCode;\n\n      // ignore\n      //    command            modifiers                   arrows\n      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;\n\n      deferListener(event, this, this.value);\n    });\n\n    // if user modifies input value using context menu in IE, we need \"paste\", \"cut\" and \"drop\" events to catch it\n    if ($sniffer.hasEvent('paste')) {\n      element.on('paste cut drop', deferListener);\n    }\n  }\n\n  // if user paste into input using mouse on older browser\n  // or form autocomplete on newer browser, we need \"change\" event to catch it\n  element.on('change', listener);\n\n  // Some native input types (date-family) have the ability to change validity without\n  // firing any input/change events.\n  // For these event types, when native validators are present and the browser supports the type,\n  // check for validity changes on various DOM events.\n  if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) {\n    element.on(PARTIAL_VALIDATION_EVENTS, /** @this */ function(ev) {\n      if (!timeout) {\n        var validity = this[VALIDITY_STATE_PROPERTY];\n        var origBadInput = validity.badInput;\n        var origTypeMismatch = validity.typeMismatch;\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) {\n            listener(ev);\n          }\n        });\n      }\n    });\n  }\n\n  ctrl.$render = function() {\n    // Workaround for Firefox validation #12102.\n    var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue;\n    if (element.val() !== value) {\n      element.val(value);\n    }\n  };\n}\n\nfunction weekParser(isoWeek, existingDate) {\n  if (isDate(isoWeek)) {\n    return isoWeek;\n  }\n\n  if (isString(isoWeek)) {\n    WEEK_REGEXP.lastIndex = 0;\n    var parts = WEEK_REGEXP.exec(isoWeek);\n    if (parts) {\n      var year = +parts[1],\n          week = +parts[2],\n          hours = 0,\n          minutes = 0,\n          seconds = 0,\n          milliseconds = 0,\n          firstThurs = getFirstThursdayOfYear(year),\n          addDays = (week - 1) * 7;\n\n      if (existingDate) {\n        hours = existingDate.getHours();\n        minutes = existingDate.getMinutes();\n        seconds = existingDate.getSeconds();\n        milliseconds = existingDate.getMilliseconds();\n      }\n\n      return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds);\n    }\n  }\n\n  return NaN;\n}\n\nfunction createDateParser(regexp, mapping) {\n  return function(iso, date) {\n    var parts, map;\n\n    if (isDate(iso)) {\n      return iso;\n    }\n\n    if (isString(iso)) {\n      // When a date is JSON'ified to wraps itself inside of an extra\n      // set of double quotes. This makes the date parsing code unable\n      // to match the date string and parse it as a date.\n      if (iso.charAt(0) === '\"' && iso.charAt(iso.length - 1) === '\"') {\n        iso = iso.substring(1, iso.length - 1);\n      }\n      if (ISO_DATE_REGEXP.test(iso)) {\n        return new Date(iso);\n      }\n      regexp.lastIndex = 0;\n      parts = regexp.exec(iso);\n\n      if (parts) {\n        parts.shift();\n        if (date) {\n          map = {\n            yyyy: date.getFullYear(),\n            MM: date.getMonth() + 1,\n            dd: date.getDate(),\n            HH: date.getHours(),\n            mm: date.getMinutes(),\n            ss: date.getSeconds(),\n            sss: date.getMilliseconds() / 1000\n          };\n        } else {\n          map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 };\n        }\n\n        forEach(parts, function(part, index) {\n          if (index < mapping.length) {\n            map[mapping[index]] = +part;\n          }\n        });\n        return new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0);\n      }\n    }\n\n    return NaN;\n  };\n}\n\nfunction createDateInputType(type, regexp, parseDate, format) {\n  return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter) {\n    badInputChecker(scope, element, attr, ctrl);\n    baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n    var previousDate;\n    var previousTimezone;\n\n    ctrl.$$parserName = type;\n    ctrl.$parsers.push(function(value) {\n      if (ctrl.$isEmpty(value)) return null;\n\n      if (regexp.test(value)) {\n        // Note: We cannot read ctrl.$modelValue, as there might be a different\n        // parser/formatter in the processing chain so that the model\n        // contains some different data format!\n        return parseDateAndConvertTimeZoneToLocal(value, previousDate);\n      }\n      return undefined;\n    });\n\n    ctrl.$formatters.push(function(value) {\n      if (value && !isDate(value)) {\n        throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value);\n      }\n      if (isValidDate(value)) {\n        previousDate = value;\n        var timezone = ctrl.$options.getOption('timezone');\n        if (timezone) {\n          previousTimezone = timezone;\n          previousDate = convertTimezoneToLocal(previousDate, timezone, true);\n        }\n        return $filter('date')(value, format, timezone);\n      } else {\n        previousDate = null;\n        previousTimezone = null;\n        return '';\n      }\n    });\n\n    if (isDefined(attr.min) || attr.ngMin) {\n      var minVal;\n      ctrl.$validators.min = function(value) {\n        return !isValidDate(value) || isUndefined(minVal) || parseDate(value) >= minVal;\n      };\n      attr.$observe('min', function(val) {\n        minVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    if (isDefined(attr.max) || attr.ngMax) {\n      var maxVal;\n      ctrl.$validators.max = function(value) {\n        return !isValidDate(value) || isUndefined(maxVal) || parseDate(value) <= maxVal;\n      };\n      attr.$observe('max', function(val) {\n        maxVal = parseObservedDateValue(val);\n        ctrl.$validate();\n      });\n    }\n\n    function isValidDate(value) {\n      // Invalid Date: getTime() returns NaN\n      return value && !(value.getTime && value.getTime() !== value.getTime());\n    }\n\n    function parseObservedDateValue(val) {\n      return isDefined(val) && !isDate(val) ? parseDateAndConvertTimeZoneToLocal(val) || undefined : val;\n    }\n\n    function parseDateAndConvertTimeZoneToLocal(value, previousDate) {\n      var timezone = ctrl.$options.getOption('timezone');\n\n      if (previousTimezone && previousTimezone !== timezone) {\n        // If the timezone has changed, adjust the previousDate to the default timezone\n        // so that the new date is converted with the correct timezone offset\n        previousDate = addDateMinutes(previousDate, timezoneToOffset(previousTimezone));\n      }\n\n      var parsedDate = parseDate(value, previousDate);\n\n      if (!isNaN(parsedDate) && timezone) {\n        parsedDate = convertTimezoneToLocal(parsedDate, timezone);\n      }\n      return parsedDate;\n    }\n  };\n}\n\nfunction badInputChecker(scope, element, attr, ctrl) {\n  var node = element[0];\n  var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity);\n  if (nativeValidation) {\n    ctrl.$parsers.push(function(value) {\n      var validity = element.prop(VALIDITY_STATE_PROPERTY) || {};\n      return validity.badInput || validity.typeMismatch ? undefined : value;\n    });\n  }\n}\n\nfunction numberFormatterParser(ctrl) {\n  ctrl.$$parserName = 'number';\n  ctrl.$parsers.push(function(value) {\n    if (ctrl.$isEmpty(value))      return null;\n    if (NUMBER_REGEXP.test(value)) return parseFloat(value);\n    return undefined;\n  });\n\n  ctrl.$formatters.push(function(value) {\n    if (!ctrl.$isEmpty(value)) {\n      if (!isNumber(value)) {\n        throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value);\n      }\n      value = value.toString();\n    }\n    return value;\n  });\n}\n\nfunction parseNumberAttrVal(val) {\n  if (isDefined(val) && !isNumber(val)) {\n    val = parseFloat(val);\n  }\n  return !isNumberNaN(val) ? val : undefined;\n}\n\nfunction isNumberInteger(num) {\n  // See http://stackoverflow.com/questions/14636536/how-to-check-if-a-variable-is-an-integer-in-javascript#14794066\n  // (minus the assumption that `num` is a number)\n\n  // eslint-disable-next-line no-bitwise\n  return (num | 0) === num;\n}\n\nfunction countDecimals(num) {\n  var numString = num.toString();\n  var decimalSymbolIndex = numString.indexOf('.');\n\n  if (decimalSymbolIndex === -1) {\n    if (-1 < num && num < 1) {\n      // It may be in the exponential notation format (`1e-X`)\n      var match = /e-(\\d+)$/.exec(numString);\n\n      if (match) {\n        return Number(match[1]);\n      }\n    }\n\n    return 0;\n  }\n\n  return numString.length - decimalSymbolIndex - 1;\n}\n\nfunction isValidForStep(viewValue, stepBase, step) {\n  // At this point `stepBase` and `step` are expected to be non-NaN values\n  // and `viewValue` is expected to be a valid stringified number.\n  var value = Number(viewValue);\n\n  var isNonIntegerValue = !isNumberInteger(value);\n  var isNonIntegerStepBase = !isNumberInteger(stepBase);\n  var isNonIntegerStep = !isNumberInteger(step);\n\n  // Due to limitations in Floating Point Arithmetic (e.g. `0.3 - 0.2 !== 0.1` or\n  // `0.5 % 0.1 !== 0`), we need to convert all numbers to integers.\n  if (isNonIntegerValue || isNonIntegerStepBase || isNonIntegerStep) {\n    var valueDecimals = isNonIntegerValue ? countDecimals(value) : 0;\n    var stepBaseDecimals = isNonIntegerStepBase ? countDecimals(stepBase) : 0;\n    var stepDecimals = isNonIntegerStep ? countDecimals(step) : 0;\n\n    var decimalCount = Math.max(valueDecimals, stepBaseDecimals, stepDecimals);\n    var multiplier = Math.pow(10, decimalCount);\n\n    value = value * multiplier;\n    stepBase = stepBase * multiplier;\n    step = step * multiplier;\n\n    if (isNonIntegerValue) value = Math.round(value);\n    if (isNonIntegerStepBase) stepBase = Math.round(stepBase);\n    if (isNonIntegerStep) step = Math.round(step);\n  }\n\n  return (value - stepBase) % step === 0;\n}\n\nfunction numberInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl);\n  numberFormatterParser(ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var minVal;\n  var maxVal;\n\n  if (isDefined(attr.min) || attr.ngMin) {\n    ctrl.$validators.min = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(minVal) || value >= minVal;\n    };\n\n    attr.$observe('min', function(val) {\n      minVal = parseNumberAttrVal(val);\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n\n  if (isDefined(attr.max) || attr.ngMax) {\n    ctrl.$validators.max = function(value) {\n      return ctrl.$isEmpty(value) || isUndefined(maxVal) || value <= maxVal;\n    };\n\n    attr.$observe('max', function(val) {\n      maxVal = parseNumberAttrVal(val);\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n\n  if (isDefined(attr.step) || attr.ngStep) {\n    var stepVal;\n    ctrl.$validators.step = function(modelValue, viewValue) {\n      return ctrl.$isEmpty(viewValue) || isUndefined(stepVal) ||\n             isValidForStep(viewValue, minVal || 0, stepVal);\n    };\n\n    attr.$observe('step', function(val) {\n      stepVal = parseNumberAttrVal(val);\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    });\n  }\n}\n\nfunction rangeInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl);\n  numberFormatterParser(ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var supportsRange = ctrl.$$hasNativeValidators && element[0].type === 'range',\n      minVal = supportsRange ? 0 : undefined,\n      maxVal = supportsRange ? 100 : undefined,\n      stepVal = supportsRange ? 1 : undefined,\n      validity = element[0].validity,\n      hasMinAttr = isDefined(attr.min),\n      hasMaxAttr = isDefined(attr.max),\n      hasStepAttr = isDefined(attr.step);\n\n  var originalRender = ctrl.$render;\n\n  ctrl.$render = supportsRange && isDefined(validity.rangeUnderflow) && isDefined(validity.rangeOverflow) ?\n    //Browsers that implement range will set these values automatically, but reading the adjusted values after\n    //$render would cause the min / max validators to be applied with the wrong value\n    function rangeRender() {\n      originalRender();\n      ctrl.$setViewValue(element.val());\n    } :\n    originalRender;\n\n  if (hasMinAttr) {\n    ctrl.$validators.min = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMinValidator() { return true; } :\n      // non-support browsers validate the min val\n      function minValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(minVal) || viewValue >= minVal;\n      };\n\n    setInitialValueAndObserver('min', minChange);\n  }\n\n  if (hasMaxAttr) {\n    ctrl.$validators.max = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMaxValidator() { return true; } :\n      // non-support browsers validate the max val\n      function maxValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(maxVal) || viewValue <= maxVal;\n      };\n\n    setInitialValueAndObserver('max', maxChange);\n  }\n\n  if (hasStepAttr) {\n    ctrl.$validators.step = supportsRange ?\n      function nativeStepValidator() {\n        // Currently, only FF implements the spec on step change correctly (i.e. adjusting the\n        // input element value to a valid value). It's possible that other browsers set the stepMismatch\n        // validity error instead, so we can at least report an error in that case.\n        return !validity.stepMismatch;\n      } :\n      // ngStep doesn't set the setp attr, so the browser doesn't adjust the input value as setting step would\n      function stepValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(stepVal) ||\n               isValidForStep(viewValue, minVal || 0, stepVal);\n      };\n\n    setInitialValueAndObserver('step', stepChange);\n  }\n\n  function setInitialValueAndObserver(htmlAttrName, changeFn) {\n    // interpolated attributes set the attribute value only after a digest, but we need the\n    // attribute value when the input is first rendered, so that the browser can adjust the\n    // input value based on the min/max value\n    element.attr(htmlAttrName, attr[htmlAttrName]);\n    attr.$observe(htmlAttrName, changeFn);\n  }\n\n  function minChange(val) {\n    minVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the minVal is greater than the element value\n      if (minVal > elVal) {\n        elVal = minVal;\n        element.val(elVal);\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function maxChange(val) {\n    maxVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the maxVal is less than the element value\n      if (maxVal < elVal) {\n        element.val(maxVal);\n        // IE11 and Chrome don't set the value to the minVal when max < min\n        elVal = maxVal < minVal ? minVal : maxVal;\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function stepChange(val) {\n    stepVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    // Some browsers don't adjust the input value correctly, but set the stepMismatch error\n    if (supportsRange && ctrl.$viewValue !== element.val()) {\n      ctrl.$setViewValue(element.val());\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n}\n\nfunction urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'url';\n  ctrl.$validators.url = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || URL_REGEXP.test(value);\n  };\n}\n\nfunction emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$$parserName = 'email';\n  ctrl.$validators.email = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value);\n  };\n}\n\nfunction radioInputType(scope, element, attr, ctrl) {\n  var doTrim = !attr.ngTrim || trim(attr.ngTrim) !== 'false';\n  // make the name unique, if not defined\n  if (isUndefined(attr.name)) {\n    element.attr('name', nextUid());\n  }\n\n  var listener = function(ev) {\n    var value;\n    if (element[0].checked) {\n      value = attr.value;\n      if (doTrim) {\n        value = trim(value);\n      }\n      ctrl.$setViewValue(value, ev && ev.type);\n    }\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    var value = attr.value;\n    if (doTrim) {\n      value = trim(value);\n    }\n    element[0].checked = (value === ctrl.$viewValue);\n  };\n\n  attr.$observe('value', ctrl.$render);\n}\n\nfunction parseConstantExpr($parse, context, name, expression, fallback) {\n  var parseFn;\n  if (isDefined(expression)) {\n    parseFn = $parse(expression);\n    if (!parseFn.constant) {\n      throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' +\n                                   '`{1}`.', name, expression);\n    }\n    return parseFn(context);\n  }\n  return fallback;\n}\n\nfunction checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true);\n  var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false);\n\n  var listener = function(ev) {\n    ctrl.$setViewValue(element[0].checked, ev && ev.type);\n  };\n\n  element.on('click', listener);\n\n  ctrl.$render = function() {\n    element[0].checked = ctrl.$viewValue;\n  };\n\n  // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false`\n  // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert\n  // it to a boolean.\n  ctrl.$isEmpty = function(value) {\n    return value === false;\n  };\n\n  ctrl.$formatters.push(function(value) {\n    return equals(value, trueValue);\n  });\n\n  ctrl.$parsers.push(function(value) {\n    return value ? trueValue : falseValue;\n  });\n}\n\n\n/**\n * @ngdoc directive\n * @name textarea\n * @restrict E\n *\n * @description\n * HTML textarea element control with AngularJS data-binding. The data-binding and validation\n * properties of this element are exactly the same as those of the\n * {@link ng.directive:input input element}.\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n *\n * @knownIssue\n *\n * When specifying the `placeholder` attribute of `<textarea>`, Internet Explorer will temporarily\n * insert the placeholder value as the textarea's content. If the placeholder value contains\n * interpolation (`{{ ... }}`), an error will be logged in the console when AngularJS tries to update\n * the value of the by-then-removed text node. This doesn't affect the functionality of the\n * textarea, but can be undesirable.\n *\n * You can work around this Internet Explorer issue by using `ng-attr-placeholder` instead of\n * `placeholder` on textareas, whenever you need interpolation in the placeholder value. You can\n * find more details on `ngAttr` in the\n * [Interpolation](guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes) section of the\n * Developer Guide.\n */\n\n\n/**\n * @ngdoc directive\n * @name input\n * @restrict E\n *\n * @description\n * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding,\n * input state control, and validation.\n * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Not every feature offered is available for all input types.\n * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`.\n * </div>\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {boolean=} ngRequired Sets `required` attribute if set to true\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    value does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n *    This parameter is ignored for input[type=password] controls, which will never trim the\n *    input.\n *\n * @example\n    <example name=\"input-directive\" module=\"inputExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('inputExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.user = {name: 'guest', last: 'visitor'};\n            }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <form name=\"myForm\">\n           <label>\n              User name:\n              <input type=\"text\" name=\"userName\" ng-model=\"user.name\" required>\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.userName.$error.required\">\n              Required!</span>\n           </div>\n           <label>\n              Last name:\n              <input type=\"text\" name=\"lastName\" ng-model=\"user.last\"\n              ng-minlength=\"3\" ng-maxlength=\"10\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.minlength\">\n               Too short!</span>\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.maxlength\">\n               Too long!</span>\n           </div>\n         </form>\n         <hr>\n         <tt>user = {{user}}</tt><br/>\n         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br/>\n         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br/>\n         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br/>\n         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br/>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br/>\n         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br/>\n       </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var user = element(by.exactBinding('user'));\n        var userNameValid = element(by.binding('myForm.userName.$valid'));\n        var lastNameValid = element(by.binding('myForm.lastName.$valid'));\n        var lastNameError = element(by.binding('myForm.lastName.$error'));\n        var formValid = element(by.binding('myForm.$valid'));\n        var userNameInput = element(by.model('user.name'));\n        var userLastInput = element(by.model('user.last'));\n\n        it('should initialize to model', function() {\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty when required', function() {\n          userNameInput.clear();\n          userNameInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('false');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be valid if empty when min length is set', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"\"}');\n          expect(lastNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if less than required min length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('xx');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('minlength');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be invalid if longer than max length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('some ridiculously long name');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('maxlength');\n          expect(formValid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n */\nvar inputDirective = ['$browser', '$sniffer', '$filter', '$parse',\n    function($browser, $sniffer, $filter, $parse) {\n  return {\n    restrict: 'E',\n    require: ['?ngModel'],\n    link: {\n      pre: function(scope, element, attr, ctrls) {\n        if (ctrls[0]) {\n          (inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrls[0], $sniffer,\n                                                              $browser, $filter, $parse);\n        }\n      }\n    }\n  };\n}];\n\n\n\nvar CONSTANT_VALUE_REGEXP = /^(true|false|\\d+)$/;\n/**\n * @ngdoc directive\n * @name ngValue\n * @restrict A\n * @priority 100\n *\n * @description\n * Binds the given expression to the value of the element.\n *\n * It is mainly used on {@link input[radio] `input[radio]`} and option elements,\n * so that when the element is selected, the {@link ngModel `ngModel`} of that element (or its\n * {@link select `select`} parent element) is set to the bound value. It is especially useful\n * for dynamically generated lists using {@link ngRepeat `ngRepeat`}, as shown below.\n *\n * It can also be used to achieve one-way binding of a given expression to an input element\n * such as an `input[text]` or a `textarea`, when that element does not use ngModel.\n *\n * @element ANY\n * @param {string=} ngValue AngularJS expression, whose value will be bound to the `value` attribute\n * and `value` property of the element.\n *\n * @example\n    <example name=\"ngValue-directive\" module=\"valueExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('valueExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.names = ['pizza', 'unicorns', 'robots'];\n              $scope.my = { favorite: 'unicorns' };\n            }]);\n       </script>\n        <form ng-controller=\"ExampleController\">\n          <h2>Which is your favorite?</h2>\n            <label ng-repeat=\"name in names\" for=\"{{name}}\">\n              {{name}}\n              <input type=\"radio\"\n                     ng-model=\"my.favorite\"\n                     ng-value=\"name\"\n                     id=\"{{name}}\"\n                     name=\"favorite\">\n            </label>\n          <div>You chose {{my.favorite}}</div>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var favorite = element(by.binding('my.favorite'));\n\n        it('should initialize to model', function() {\n          expect(favorite.getText()).toContain('unicorns');\n        });\n        it('should bind the values to the inputs', function() {\n          element.all(by.model('my.favorite')).get(0).click();\n          expect(favorite.getText()).toContain('pizza');\n        });\n      </file>\n    </example>\n */\nvar ngValueDirective = function() {\n  /**\n   *  inputs use the value attribute as their default value if the value property is not set.\n   *  Once the value property has been set (by adding input), it will not react to changes to\n   *  the value attribute anymore. Setting both attribute and property fixes this behavior, and\n   *  makes it possible to use ngValue as a sort of one-way bind.\n   */\n  function updateElementValue(element, attr, value) {\n    // Support: IE9 only\n    // In IE9 values are converted to string (e.g. `input.value = null` results in `input.value === 'null'`).\n    var propValue = isDefined(value) ? value : (msie === 9) ? '' : null;\n    element.prop('value', propValue);\n    attr.$set('value', value);\n  }\n\n  return {\n    restrict: 'A',\n    priority: 100,\n    compile: function(tpl, tplAttr) {\n      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {\n        return function ngValueConstantLink(scope, elm, attr) {\n          var value = scope.$eval(attr.ngValue);\n          updateElementValue(elm, attr, value);\n        };\n      } else {\n        return function ngValueLink(scope, elm, attr) {\n          scope.$watch(attr.ngValue, function valueWatchAction(value) {\n            updateElementValue(elm, attr, value);\n          });\n        };\n      }\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngBind\n * @restrict AC\n *\n * @description\n * The `ngBind` attribute tells AngularJS to replace the text content of the specified HTML element\n * with the value of a given expression, and to update the text content when the value of that\n * expression changes.\n *\n * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like\n * `{{ expression }}` which is similar but less verbose.\n *\n * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily\n * displayed by the browser in its raw state before AngularJS compiles it. Since `ngBind` is an\n * element attribute, it makes the bindings invisible to the user while the page is loading.\n *\n * An alternative solution to this problem would be using the\n * {@link ng.directive:ngCloak ngCloak} directive.\n *\n *\n * @element ANY\n * @param {expression} ngBind {@link guide/expression Expression} to evaluate.\n *\n * @example\n * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.\n   <example module=\"bindExample\" name=\"ng-bind\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.name = 'Whirled';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter name: <input type=\"text\" ng-model=\"name\"></label><br>\n         Hello <span ng-bind=\"name\"></span>!\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var nameInput = element(by.model('name'));\n\n         expect(element(by.binding('name')).getText()).toBe('Whirled');\n         nameInput.clear();\n         nameInput.sendKeys('world');\n         expect(element(by.binding('name')).getText()).toBe('world');\n       });\n     </file>\n   </example>\n */\nvar ngBindDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'AC',\n    compile: function ngBindCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBind);\n        element = element[0];\n        scope.$watch(attr.ngBind, function ngBindWatchAction(value) {\n          element.textContent = stringify(value);\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindTemplate\n *\n * @description\n * The `ngBindTemplate` directive specifies that the element\n * text content should be replaced with the interpolation of the template\n * in the `ngBindTemplate` attribute.\n * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`\n * expressions. This directive is needed since some HTML elements\n * (such as TITLE and OPTION) cannot contain SPAN elements.\n *\n * @element ANY\n * @param {string} ngBindTemplate template of form\n *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.\n *\n * @example\n * Try it here: enter text in text box and watch the greeting change.\n   <example module=\"bindExample\" name=\"ng-bind-template\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.salutation = 'Hello';\n             $scope.name = 'World';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n        <label>Salutation: <input type=\"text\" ng-model=\"salutation\"></label><br>\n        <label>Name: <input type=\"text\" ng-model=\"name\"></label><br>\n        <pre ng-bind-template=\"{{salutation}} {{name}}!\"></pre>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var salutationElem = element(by.binding('salutation'));\n         var salutationInput = element(by.model('salutation'));\n         var nameInput = element(by.model('name'));\n\n         expect(salutationElem.getText()).toBe('Hello World!');\n\n         salutationInput.clear();\n         salutationInput.sendKeys('Greetings');\n         nameInput.clear();\n         nameInput.sendKeys('user');\n\n         expect(salutationElem.getText()).toBe('Greetings user!');\n       });\n     </file>\n   </example>\n */\nvar ngBindTemplateDirective = ['$interpolate', '$compile', function($interpolate, $compile) {\n  return {\n    compile: function ngBindTemplateCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindTemplateLink(scope, element, attr) {\n        var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));\n        $compile.$$addBindingInfo(element, interpolateFn.expressions);\n        element = element[0];\n        attr.$observe('ngBindTemplate', function(value) {\n          element.textContent = isUndefined(value) ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindHtml\n *\n * @description\n * Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default,\n * the resulting HTML content will be sanitized using the {@link ngSanitize.$sanitize $sanitize} service.\n * To utilize this functionality, ensure that `$sanitize` is available, for example, by including {@link\n * ngSanitize} in your module's dependencies (not in core AngularJS). In order to use {@link ngSanitize}\n * in your module's dependencies, you need to include \"angular-sanitize.js\" in your application.\n *\n * You may also bypass sanitization for values you know are safe. To do so, bind to\n * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example\n * under {@link ng.$sce#show-me-an-example-using-sce- Strict Contextual Escaping (SCE)}.\n *\n * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you\n * will have an exception (instead of an exploit.)\n *\n * @element ANY\n * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.\n *\n * @example\n\n   <example module=\"bindHtmlExample\" deps=\"angular-sanitize.js\" name=\"ng-bind-html\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n        <p ng-bind-html=\"myHTML\"></p>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n       angular.module('bindHtmlExample', ['ngSanitize'])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.myHTML =\n              'I am an <code>HTML</code>string with ' +\n              '<a href=\"#\">links!</a> and other <em>stuff</em>';\n         }]);\n     </file>\n\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind-html', function() {\n         expect(element(by.binding('myHTML')).getText()).toBe(\n             'I am an HTMLstring with links! and other stuff');\n       });\n     </file>\n   </example>\n */\nvar ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {\n  return {\n    restrict: 'A',\n    compile: function ngBindHtmlCompile(tElement, tAttrs) {\n      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);\n      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function sceValueOf(val) {\n        // Unwrap the value to compare the actual inner safe value, not the wrapper object.\n        return $sce.valueOf(val);\n      });\n      $compile.$$addBindingClass(tElement);\n\n      return function ngBindHtmlLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBindHtml);\n\n        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {\n          // The watched value is the unwrapped value. To avoid re-escaping, use the direct getter.\n          var value = ngBindHtmlGetter(scope);\n          element.html($sce.getTrustedHtml(value) || '');\n        });\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngChange\n * @restrict A\n *\n * @description\n * Evaluate the given expression when the user changes the input.\n * The expression is evaluated immediately, unlike the JavaScript onchange event\n * which only triggers at the end of a change (usually, when the user leaves the\n * form element or presses the return key).\n *\n * The `ngChange` expression is only evaluated when a change in the input value causes\n * a new value to be committed to the model.\n *\n * It will not be evaluated:\n * * if the value returned from the `$parsers` transformation pipeline has not changed\n * * if the input has continued to be invalid since the model will stay `null`\n * * if the model is changed programmatically and not by a change to the input value\n *\n *\n * Note, this directive requires `ngModel` to be present.\n *\n * @element ANY\n * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change\n * in input value.\n *\n * @example\n * <example name=\"ngChange-directive\" module=\"changeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('changeExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.counter = 0;\n *           $scope.change = function() {\n *             $scope.counter++;\n *           };\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input type=\"checkbox\" ng-model=\"confirmed\" ng-change=\"change()\" id=\"ng-change-example1\" />\n *       <input type=\"checkbox\" ng-model=\"confirmed\" id=\"ng-change-example2\" />\n *       <label for=\"ng-change-example2\">Confirmed</label><br />\n *       <tt>debug = {{confirmed}}</tt><br/>\n *       <tt>counter = {{counter}}</tt><br/>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var counter = element(by.binding('counter'));\n *     var debug = element(by.binding('confirmed'));\n *\n *     it('should evaluate the expression if changing from view', function() {\n *       expect(counter.getText()).toContain('0');\n *\n *       element(by.id('ng-change-example1')).click();\n *\n *       expect(counter.getText()).toContain('1');\n *       expect(debug.getText()).toContain('true');\n *     });\n *\n *     it('should not evaluate the expression if changing from model', function() {\n *       element(by.id('ng-change-example2')).click();\n\n *       expect(counter.getText()).toContain('0');\n *       expect(debug.getText()).toContain('true');\n *     });\n *   </file>\n * </example>\n */\nvar ngChangeDirective = valueFn({\n  restrict: 'A',\n  require: 'ngModel',\n  link: function(scope, element, attr, ctrl) {\n    ctrl.$viewChangeListeners.push(function() {\n      scope.$eval(attr.ngChange);\n    });\n  }\n});\n\n/* exported\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective\n*/\n\nfunction classDirective(name, selector) {\n  name = 'ngClass' + name;\n  var indexWatchExpression;\n\n  return ['$parse', function($parse) {\n    return {\n      restrict: 'AC',\n      link: function(scope, element, attr) {\n        var expression = attr[name].trim();\n        var isOneTime = (expression.charAt(0) === ':') && (expression.charAt(1) === ':');\n\n        var watchInterceptor = isOneTime ? toFlatValue : toClassString;\n        var watchExpression = $parse(expression, watchInterceptor);\n        var watchAction = isOneTime ? ngClassOneTimeWatchAction : ngClassWatchAction;\n\n        var classCounts = element.data('$classCounts');\n        var oldModulo = true;\n        var oldClassString;\n\n        if (!classCounts) {\n          // Use createMap() to prevent class assumptions involving property\n          // names in Object.prototype\n          classCounts = createMap();\n          element.data('$classCounts', classCounts);\n        }\n\n        if (name !== 'ngClass') {\n          if (!indexWatchExpression) {\n            indexWatchExpression = $parse('$index', function moduloTwo($index) {\n              // eslint-disable-next-line no-bitwise\n              return $index & 1;\n            });\n          }\n\n          scope.$watch(indexWatchExpression, ngClassIndexWatchAction);\n        }\n\n        scope.$watch(watchExpression, watchAction, isOneTime);\n\n        function addClasses(classString) {\n          classString = digestClassCounts(split(classString), 1);\n          attr.$addClass(classString);\n        }\n\n        function removeClasses(classString) {\n          classString = digestClassCounts(split(classString), -1);\n          attr.$removeClass(classString);\n        }\n\n        function updateClasses(oldClassString, newClassString) {\n          var oldClassArray = split(oldClassString);\n          var newClassArray = split(newClassString);\n\n          var toRemoveArray = arrayDifference(oldClassArray, newClassArray);\n          var toAddArray = arrayDifference(newClassArray, oldClassArray);\n\n          var toRemoveString = digestClassCounts(toRemoveArray, -1);\n          var toAddString = digestClassCounts(toAddArray, 1);\n\n          attr.$addClass(toAddString);\n          attr.$removeClass(toRemoveString);\n        }\n\n        function digestClassCounts(classArray, count) {\n          var classesToUpdate = [];\n\n          forEach(classArray, function(className) {\n            if (count > 0 || classCounts[className]) {\n              classCounts[className] = (classCounts[className] || 0) + count;\n              if (classCounts[className] === +(count > 0)) {\n                classesToUpdate.push(className);\n              }\n            }\n          });\n\n          return classesToUpdate.join(' ');\n        }\n\n        function ngClassIndexWatchAction(newModulo) {\n          // This watch-action should run before the `ngClass[OneTime]WatchAction()`, thus it\n          // adds/removes `oldClassString`. If the `ngClass` expression has changed as well, the\n          // `ngClass[OneTime]WatchAction()` will update the classes.\n          if (newModulo === selector) {\n            addClasses(oldClassString);\n          } else {\n            removeClasses(oldClassString);\n          }\n\n          oldModulo = newModulo;\n        }\n\n        function ngClassOneTimeWatchAction(newClassValue) {\n          var newClassString = toClassString(newClassValue);\n\n          if (newClassString !== oldClassString) {\n            ngClassWatchAction(newClassString);\n          }\n        }\n\n        function ngClassWatchAction(newClassString) {\n          if (oldModulo === selector) {\n            updateClasses(oldClassString, newClassString);\n          }\n\n          oldClassString = newClassString;\n        }\n      }\n    };\n  }];\n\n  // Helpers\n  function arrayDifference(tokens1, tokens2) {\n    if (!tokens1 || !tokens1.length) return [];\n    if (!tokens2 || !tokens2.length) return tokens1;\n\n    var values = [];\n\n    outer:\n    for (var i = 0; i < tokens1.length; i++) {\n      var token = tokens1[i];\n      for (var j = 0; j < tokens2.length; j++) {\n        if (token === tokens2[j]) continue outer;\n      }\n      values.push(token);\n    }\n\n    return values;\n  }\n\n  function split(classString) {\n    return classString && classString.split(' ');\n  }\n\n  function toClassString(classValue) {\n    var classString = classValue;\n\n    if (isArray(classValue)) {\n      classString = classValue.map(toClassString).join(' ');\n    } else if (isObject(classValue)) {\n      classString = Object.keys(classValue).\n        filter(function(key) { return classValue[key]; }).\n        join(' ');\n    }\n\n    return classString;\n  }\n\n  function toFlatValue(classValue) {\n    var flatValue = classValue;\n\n    if (isArray(classValue)) {\n      flatValue = classValue.map(toFlatValue);\n    } else if (isObject(classValue)) {\n      var hasUndefined = false;\n\n      flatValue = Object.keys(classValue).filter(function(key) {\n        var value = classValue[key];\n\n        if (!hasUndefined && isUndefined(value)) {\n          hasUndefined = true;\n        }\n\n        return value;\n      });\n\n      if (hasUndefined) {\n        // Prevent the `oneTimeLiteralWatchInterceptor` from unregistering\n        // the watcher, by including at least one `undefined` value.\n        flatValue.push(undefined);\n      }\n    }\n\n    return flatValue;\n  }\n}\n\n/**\n * @ngdoc directive\n * @name ngClass\n * @restrict AC\n * @element ANY\n *\n * @description\n * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding\n * an expression that represents all classes to be added.\n *\n * The directive operates in three different ways, depending on which of three types the expression\n * evaluates to:\n *\n * 1. If the expression evaluates to a string, the string should be one or more space-delimited class\n * names.\n *\n * 2. If the expression evaluates to an object, then for each key-value pair of the\n * object with a truthy value the corresponding key is used as a class name.\n *\n * 3. If the expression evaluates to an array, each element of the array should either be a string as in\n * type 1 or an object as in type 2. This means that you can mix strings and objects together in an array\n * to give you more control over what CSS classes appear. See the code below for an example of this.\n *\n *\n * The directive won't add duplicate classes if a particular class was already set.\n *\n * When the expression changes, the previously added classes are removed and only then are the\n * new classes added.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `class`\n * attribute, when using the `ngClass` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * ### ngClass and pre-existing CSS3 Transitions/Animations\n   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.\n   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder\n   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure\n   to view the step by step details of {@link $animate#addClass $animate.addClass} and\n   {@link $animate#removeClass $animate.removeClass}.\n *\n * @param {expression} ngClass {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class\n *   names, an array, or a map of class names to boolean values. In the case of a map, the\n *   names of the properties whose values are truthy will be added as css classes to the\n *   element.\n *\n * @example\n * ### Basic\n   <example name=\"ng-class\">\n     <file name=\"index.html\">\n       <p ng-class=\"{strike: deleted, bold: important, 'has-error': error}\">Map Syntax Example</p>\n       <label>\n          <input type=\"checkbox\" ng-model=\"deleted\">\n          deleted (apply \"strike\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"important\">\n          important (apply \"bold\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"error\">\n          error (apply \"has-error\" class)\n       </label>\n       <hr>\n       <p ng-class=\"style\">Using String Syntax</p>\n       <input type=\"text\" ng-model=\"style\"\n              placeholder=\"Type: bold strike red\" aria-label=\"Type: bold strike red\">\n       <hr>\n       <p ng-class=\"[style1, style2, style3]\">Using Array Syntax</p>\n       <input ng-model=\"style1\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style2\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 2\"><br>\n       <input ng-model=\"style3\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 3\"><br>\n       <hr>\n       <p ng-class=\"[style4, {orange: warning}]\">Using Array and Map Syntax</p>\n       <input ng-model=\"style4\" placeholder=\"Type: bold, strike\" aria-label=\"Type: bold, strike\"><br>\n       <label><input type=\"checkbox\" ng-model=\"warning\"> warning (apply \"orange\" class)</label>\n     </file>\n     <file name=\"style.css\">\n       .strike {\n           text-decoration: line-through;\n       }\n       .bold {\n           font-weight: bold;\n       }\n       .red {\n           color: red;\n       }\n       .has-error {\n           color: red;\n           background-color: yellow;\n       }\n       .orange {\n           color: orange;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var ps = element.all(by.css('p'));\n\n       it('should let you toggle the class', function() {\n\n         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);\n         expect(ps.first().getAttribute('class')).not.toMatch(/has-error/);\n\n         element(by.model('important')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/bold/);\n\n         element(by.model('error')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/has-error/);\n       });\n\n       it('should let you toggle string example', function() {\n         expect(ps.get(1).getAttribute('class')).toBe('');\n         element(by.model('style')).clear();\n         element(by.model('style')).sendKeys('red');\n         expect(ps.get(1).getAttribute('class')).toBe('red');\n       });\n\n       it('array example should have 3 classes', function() {\n         expect(ps.get(2).getAttribute('class')).toBe('');\n         element(by.model('style1')).sendKeys('bold');\n         element(by.model('style2')).sendKeys('strike');\n         element(by.model('style3')).sendKeys('red');\n         expect(ps.get(2).getAttribute('class')).toBe('bold strike red');\n       });\n\n       it('array with map example should have 2 classes', function() {\n         expect(ps.last().getAttribute('class')).toBe('');\n         element(by.model('style4')).sendKeys('bold');\n         element(by.model('warning')).click();\n         expect(ps.last().getAttribute('class')).toBe('bold orange');\n       });\n     </file>\n   </example>\n\n   @example\n   ### Animations\n\n   The example below demonstrates how to perform animations using ngClass.\n\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class\">\n     <file name=\"index.html\">\n      <input id=\"setbtn\" type=\"button\" value=\"set\" ng-click=\"myVar='my-class'\">\n      <input id=\"clearbtn\" type=\"button\" value=\"clear\" ng-click=\"myVar=''\">\n      <br>\n      <span class=\"base-class\" ng-class=\"myVar\">Sample Text</span>\n     </file>\n     <file name=\"style.css\">\n       .base-class {\n         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n       }\n\n       .base-class.my-class {\n         color: red;\n         font-size:3em;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class', function() {\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n\n         element(by.id('setbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).\n           toMatch(/my-class/);\n\n         element(by.id('clearbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n       });\n     </file>\n   </example>\n */\nvar ngClassDirective = classDirective('', true);\n\n/**\n * @ngdoc directive\n * @name ngClassOdd\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * @element ANY\n * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-odd\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}}\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n *\n * <hr />\n * @example\n * An example on how to implement animations using `ngClassOdd`:\n *\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class-odd-animate\">\n     <file name=\"index.html\">\n       <div ng-init=\"items=['Item 3', 'Item 2', 'Item 1', 'Item 0']\">\n         <button ng-click=\"items.unshift('Item ' + items.length)\">Add item</button>\n         <hr />\n         <table>\n           <tr ng-repeat=\"item in items\" ng-class-odd=\"'odd'\">\n             <td>{{ item }}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         background: rgba(255, 255, 0, 0.25);\n       }\n\n       .odd-add, .odd-remove {\n         transition: 1.5s;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should add new entries to the beginning of the list', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.count()).toBe(4);\n         expect(rows.get(0).getText()).toBe('Item 3');\n         expect(rows.get(1).getText()).toBe('Item 2');\n\n         button.click();\n\n         expect(rows.count()).toBe(5);\n         expect(rows.get(0).getText()).toBe('Item 4');\n         expect(rows.get(1).getText()).toBe('Item 3');\n       });\n\n       it('should add odd class to odd entries', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.get(0).getAttribute('class')).toMatch(/odd/);\n         expect(rows.get(1).getAttribute('class')).not.toMatch(/odd/);\n\n         button.click();\n\n         expect(rows.get(0).getAttribute('class')).toMatch(/odd/);\n         expect(rows.get(1).getAttribute('class')).not.toMatch(/odd/);\n       });\n     </file>\n   </example>\n */\nvar ngClassOddDirective = classDirective('Odd', 0);\n\n/**\n * @ngdoc directive\n * @name ngClassEven\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * @element ANY\n * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The\n *   result of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-even\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}} &nbsp; &nbsp; &nbsp;\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n *\n * <hr />\n * @example\n * An example on how to implement animations using `ngClassEven`:\n *\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class-even-animate\">\n     <file name=\"index.html\">\n       <div ng-init=\"items=['Item 3', 'Item 2', 'Item 1', 'Item 0']\">\n         <button ng-click=\"items.unshift('Item ' + items.length)\">Add item</button>\n         <hr />\n         <table>\n           <tr ng-repeat=\"item in items\" ng-class-even=\"'even'\">\n             <td>{{ item }}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"style.css\">\n       .even {\n         background: rgba(255, 255, 0, 0.25);\n       }\n\n       .even-add, .even-remove {\n         transition: 1.5s;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should add new entries to the beginning of the list', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.count()).toBe(4);\n         expect(rows.get(0).getText()).toBe('Item 3');\n         expect(rows.get(1).getText()).toBe('Item 2');\n\n         button.click();\n\n         expect(rows.count()).toBe(5);\n         expect(rows.get(0).getText()).toBe('Item 4');\n         expect(rows.get(1).getText()).toBe('Item 3');\n       });\n\n       it('should add even class to even entries', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.get(0).getAttribute('class')).not.toMatch(/even/);\n         expect(rows.get(1).getAttribute('class')).toMatch(/even/);\n\n         button.click();\n\n         expect(rows.get(0).getAttribute('class')).not.toMatch(/even/);\n         expect(rows.get(1).getAttribute('class')).toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassEvenDirective = classDirective('Even', 1);\n\n/**\n * @ngdoc directive\n * @name ngCloak\n * @restrict AC\n *\n * @description\n * The `ngCloak` directive is used to prevent the AngularJS html template from being briefly\n * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this\n * directive to avoid the undesirable flicker effect caused by the html template display.\n *\n * The directive can be applied to the `<body>` element, but the preferred usage is to apply\n * multiple `ngCloak` directives to small portions of the page to permit progressive rendering\n * of the browser view.\n *\n * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and\n * `angular.min.js`.\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```css\n * [ng\\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {\n *   display: none !important;\n * }\n * ```\n *\n * When this css rule is loaded by the browser, all html elements (including their children) that\n * are tagged with the `ngCloak` directive are hidden. When AngularJS encounters this directive\n * during the compilation of the template it deletes the `ngCloak` element attribute, making\n * the compiled element visible.\n *\n * For the best result, the `angular.js` script must be loaded in the head section of the html\n * document; alternatively, the css rule above must be included in the external stylesheet of the\n * application.\n *\n * @element ANY\n *\n * @example\n   <example name=\"ng-cloak\">\n     <file name=\"index.html\">\n        <div id=\"template1\" ng-cloak>{{ 'hello' }}</div>\n        <div id=\"template2\" class=\"ng-cloak\">{{ 'world' }}</div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should remove the template directive and css class', function() {\n         expect($('#template1').getAttribute('ng-cloak')).\n           toBeNull();\n         expect($('#template2').getAttribute('ng-cloak')).\n           toBeNull();\n       });\n     </file>\n   </example>\n *\n */\nvar ngCloakDirective = ngDirective({\n  compile: function(element, attr) {\n    attr.$set('ngCloak', undefined);\n    element.removeClass('ng-cloak');\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngController\n *\n * @description\n * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular\n * supports the principles behind the Model-View-Controller design pattern.\n *\n * MVC components in angular:\n *\n * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties\n *   are accessed through bindings.\n * * View — The template (HTML with data bindings) that is rendered into the View.\n * * Controller — The `ngController` directive specifies a Controller class; the class contains business\n *   logic behind the application to decorate the scope with functions and values\n *\n * Note that you can also attach controllers to the DOM by declaring it in a route definition\n * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller\n * again using `ng-controller` in the template itself.  This will cause the controller to be attached\n * and executed twice.\n *\n * @element ANY\n * @scope\n * @priority 500\n * @param {expression} ngController Name of a constructor function registered with the current\n * {@link ng.$controllerProvider $controllerProvider} or an {@link guide/expression expression}\n * that on the current scope evaluates to a constructor function.\n *\n * The controller instance can be published into a scope property by specifying\n * `ng-controller=\"as propertyName\"`.\n *\n * If the current `$controllerProvider` is configured to use globals (via\n * {@link ng.$controllerProvider#allowGlobals `$controllerProvider.allowGlobals()` }), this may\n * also be the name of a globally accessible constructor function (deprecated, not recommended).\n *\n * @example\n * Here is a simple form for editing user contact information. Adding, removing, clearing, and\n * greeting are methods declared on the controller (see source tab). These methods can\n * easily be called from the AngularJS markup. Any changes to the data are automatically reflected\n * in the View without the need for a manual update.\n *\n * Two different declaration styles are included below:\n *\n * * one binds methods and properties directly onto the controller using `this`:\n * `ng-controller=\"SettingsController1 as settings\"`\n * * one injects `$scope` into the controller:\n * `ng-controller=\"SettingsController2\"`\n *\n * The second option is more common in the AngularJS community, and is generally used in boilerplates\n * and in this guide. However, there are advantages to binding properties directly to the controller\n * and avoiding scope.\n *\n * * Using `controller as` makes it obvious which controller you are accessing in the template when\n * multiple controllers apply to an element.\n * * If you are writing your controllers as classes you have easier access to the properties and\n * methods, which will appear on the scope, from inside the controller code.\n * * Since there is always a `.` in the bindings, you don't have to worry about prototypal\n * inheritance masking primitives.\n *\n * This example demonstrates the `controller as` syntax.\n *\n * <example name=\"ngControllerAs\" module=\"controllerAsExample\">\n *   <file name=\"index.html\">\n *    <div id=\"ctrl-as-exmpl\" ng-controller=\"SettingsController1 as settings\">\n *      <label>Name: <input type=\"text\" ng-model=\"settings.name\"/></label>\n *      <button ng-click=\"settings.greet()\">greet</button><br/>\n *      Contact:\n *      <ul>\n *        <li ng-repeat=\"contact in settings.contacts\">\n *          <select ng-model=\"contact.type\" aria-label=\"Contact method\" id=\"select_{{$index}}\">\n *             <option>phone</option>\n *             <option>email</option>\n *          </select>\n *          <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *          <button ng-click=\"settings.clearContact(contact)\">clear</button>\n *          <button ng-click=\"settings.removeContact(contact)\" aria-label=\"Remove\">X</button>\n *        </li>\n *        <li><button ng-click=\"settings.addContact()\">add</button></li>\n *     </ul>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('controllerAsExample', [])\n *      .controller('SettingsController1', SettingsController1);\n *\n *    function SettingsController1() {\n *      this.name = 'John Smith';\n *      this.contacts = [\n *        {type: 'phone', value: '408 555 1212'},\n *        {type: 'email', value: 'john.smith@example.org'}\n *      ];\n *    }\n *\n *    SettingsController1.prototype.greet = function() {\n *      alert(this.name);\n *    };\n *\n *    SettingsController1.prototype.addContact = function() {\n *      this.contacts.push({type: 'email', value: 'yourname@example.org'});\n *    };\n *\n *    SettingsController1.prototype.removeContact = function(contactToRemove) {\n *     var index = this.contacts.indexOf(contactToRemove);\n *      this.contacts.splice(index, 1);\n *    };\n *\n *    SettingsController1.prototype.clearContact = function(contact) {\n *      contact.type = 'phone';\n *      contact.value = '';\n *    };\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should check controller as', function() {\n *       var container = element(by.id('ctrl-as-exmpl'));\n *         expect(container.element(by.model('settings.name'))\n *           .getAttribute('value')).toBe('John Smith');\n *\n *       var firstRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(0));\n *       var secondRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(1));\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('408 555 1212');\n *\n *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('john.smith@example.org');\n *\n *       firstRepeat.element(by.buttonText('clear')).click();\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('');\n *\n *       container.element(by.buttonText('add')).click();\n *\n *       expect(container.element(by.repeater('contact in settings.contacts').row(2))\n *           .element(by.model('contact.value'))\n *           .getAttribute('value'))\n *           .toBe('yourname@example.org');\n *     });\n *   </file>\n * </example>\n *\n * This example demonstrates the \"attach to `$scope`\" style of controller.\n *\n * <example name=\"ngController\" module=\"controllerExample\">\n *  <file name=\"index.html\">\n *   <div id=\"ctrl-exmpl\" ng-controller=\"SettingsController2\">\n *     <label>Name: <input type=\"text\" ng-model=\"name\"/></label>\n *     <button ng-click=\"greet()\">greet</button><br/>\n *     Contact:\n *     <ul>\n *       <li ng-repeat=\"contact in contacts\">\n *         <select ng-model=\"contact.type\" id=\"select_{{$index}}\">\n *            <option>phone</option>\n *            <option>email</option>\n *         </select>\n *         <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *         <button ng-click=\"clearContact(contact)\">clear</button>\n *         <button ng-click=\"removeContact(contact)\">X</button>\n *       </li>\n *       <li>[ <button ng-click=\"addContact()\">add</button> ]</li>\n *    </ul>\n *   </div>\n *  </file>\n *  <file name=\"app.js\">\n *   angular.module('controllerExample', [])\n *     .controller('SettingsController2', ['$scope', SettingsController2]);\n *\n *   function SettingsController2($scope) {\n *     $scope.name = 'John Smith';\n *     $scope.contacts = [\n *       {type:'phone', value:'408 555 1212'},\n *       {type:'email', value:'john.smith@example.org'}\n *     ];\n *\n *     $scope.greet = function() {\n *       alert($scope.name);\n *     };\n *\n *     $scope.addContact = function() {\n *       $scope.contacts.push({type:'email', value:'yourname@example.org'});\n *     };\n *\n *     $scope.removeContact = function(contactToRemove) {\n *       var index = $scope.contacts.indexOf(contactToRemove);\n *       $scope.contacts.splice(index, 1);\n *     };\n *\n *     $scope.clearContact = function(contact) {\n *       contact.type = 'phone';\n *       contact.value = '';\n *     };\n *   }\n *  </file>\n *  <file name=\"protractor.js\" type=\"protractor\">\n *    it('should check controller', function() {\n *      var container = element(by.id('ctrl-exmpl'));\n *\n *      expect(container.element(by.model('name'))\n *          .getAttribute('value')).toBe('John Smith');\n *\n *      var firstRepeat =\n *          container.element(by.repeater('contact in contacts').row(0));\n *      var secondRepeat =\n *          container.element(by.repeater('contact in contacts').row(1));\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('408 555 1212');\n *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('john.smith@example.org');\n *\n *      firstRepeat.element(by.buttonText('clear')).click();\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('');\n *\n *      container.element(by.buttonText('add')).click();\n *\n *      expect(container.element(by.repeater('contact in contacts').row(2))\n *          .element(by.model('contact.value'))\n *          .getAttribute('value'))\n *          .toBe('yourname@example.org');\n *    });\n *  </file>\n *</example>\n\n */\nvar ngControllerDirective = [function() {\n  return {\n    restrict: 'A',\n    scope: true,\n    controller: '@',\n    priority: 500\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngCsp\n *\n * @restrict A\n * @element ANY\n * @description\n *\n * AngularJS has some features that can conflict with certain restrictions that are applied when using\n * [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) rules.\n *\n * If you intend to implement CSP with these rules then you must tell AngularJS not to use these\n * features.\n *\n * This is necessary when developing things like Google Chrome Extensions or Universal Windows Apps.\n *\n *\n * The following default rules in CSP affect AngularJS:\n *\n * * The use of `eval()`, `Function(string)` and similar functions to dynamically create and execute\n * code from strings is forbidden. AngularJS makes use of this in the {@link $parse} service to\n * provide a 30% increase in the speed of evaluating AngularJS expressions. (This CSP rule can be\n * disabled with the CSP keyword `unsafe-eval`, but it is generally not recommended as it would\n * weaken the protections offered by CSP.)\n *\n * * The use of inline resources, such as inline `<script>` and `<style>` elements, are forbidden.\n * This prevents apps from injecting custom styles directly into the document. AngularJS makes use of\n * this to include some CSS rules (e.g. {@link ngCloak} and {@link ngHide}). To make these\n * directives work when a CSP rule is blocking inline styles, you must link to the `angular-csp.css`\n * in your HTML manually. (This CSP rule can be disabled with the CSP keyword `unsafe-inline`, but\n * it is generally not recommended as it would weaken the protections offered by CSP.)\n *\n * If you do not provide `ngCsp` then AngularJS tries to autodetect if CSP is blocking dynamic code\n * creation from strings (e.g., `unsafe-eval` not specified in CSP header) and automatically\n * deactivates this feature in the {@link $parse} service. This autodetection, however, triggers a\n * CSP error to be logged in the console:\n *\n * ```\n * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of\n * script in the following Content Security Policy directive: \"default-src 'self'\". Note that\n * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.\n * ```\n *\n * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`\n * directive on an element of the HTML document that appears before the `<script>` tag that loads\n * the `angular.js` file.\n *\n * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*\n *\n * You can specify which of the CSP related AngularJS features should be deactivated by providing\n * a value for the `ng-csp` attribute. The options are as follows:\n *\n * * no-inline-style: this stops AngularJS from injecting CSS styles into the DOM\n *\n * * no-unsafe-eval: this stops AngularJS from optimizing $parse with unsafe eval of strings\n *\n * You can use these values in the following combinations:\n *\n *\n * * No declaration means that AngularJS will assume that you can do inline styles, but it will do\n * a runtime check for unsafe-eval. E.g. `<body>`. This is backwardly compatible with previous\n * versions of AngularJS.\n *\n * * A simple `ng-csp` (or `data-ng-csp`) attribute will tell AngularJS to deactivate both inline\n * styles and unsafe eval. E.g. `<body ng-csp>`. This is backwardly compatible with previous\n * versions of AngularJS.\n *\n * * Specifying only `no-unsafe-eval` tells AngularJS that we must not use eval, but that we can\n * inject inline styles. E.g. `<body ng-csp=\"no-unsafe-eval\">`.\n *\n * * Specifying only `no-inline-style` tells AngularJS that we must not inject styles, but that we can\n * run eval - no automatic check for unsafe eval will occur. E.g. `<body ng-csp=\"no-inline-style\">`\n *\n * * Specifying both `no-unsafe-eval` and `no-inline-style` tells AngularJS that we must not inject\n * styles nor use eval, which is the same as an empty: ng-csp.\n * E.g.`<body ng-csp=\"no-inline-style;no-unsafe-eval\">`\n *\n * @example\n *\n * This example shows how to apply the `ngCsp` directive to the `html` tag.\n   ```html\n     <!doctype html>\n     <html ng-app ng-csp>\n     ...\n     ...\n     </html>\n   ```\n\n  <!-- Note: the `.csp` suffix in the example name triggers CSP mode in our http server! -->\n  <example name=\"example.csp\" module=\"cspExample\" ng-csp=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"MainController as ctrl\">\n        <div>\n          <button ng-click=\"ctrl.inc()\" id=\"inc\">Increment</button>\n          <span id=\"counter\">\n            {{ctrl.counter}}\n          </span>\n        </div>\n\n        <div>\n          <button ng-click=\"ctrl.evil()\" id=\"evil\">Evil</button>\n          <span id=\"evilError\">\n            {{ctrl.evilError}}\n          </span>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n       angular.module('cspExample', [])\n         .controller('MainController', function MainController() {\n            this.counter = 0;\n            this.inc = function() {\n              this.counter++;\n            };\n            this.evil = function() {\n              try {\n                eval('1+2'); // eslint-disable-line no-eval\n              } catch (e) {\n                this.evilError = e.message;\n              }\n            };\n          });\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var util, webdriver;\n\n      var incBtn = element(by.id('inc'));\n      var counter = element(by.id('counter'));\n      var evilBtn = element(by.id('evil'));\n      var evilError = element(by.id('evilError'));\n\n      function getAndClearSevereErrors() {\n        return browser.manage().logs().get('browser').then(function(browserLog) {\n          return browserLog.filter(function(logEntry) {\n            return logEntry.level.value > webdriver.logging.Level.WARNING.value;\n          });\n        });\n      }\n\n      function clearErrors() {\n        getAndClearSevereErrors();\n      }\n\n      function expectNoErrors() {\n        getAndClearSevereErrors().then(function(filteredLog) {\n          expect(filteredLog.length).toEqual(0);\n          if (filteredLog.length) {\n            console.log('browser console errors: ' + util.inspect(filteredLog));\n          }\n        });\n      }\n\n      function expectError(regex) {\n        getAndClearSevereErrors().then(function(filteredLog) {\n          var found = false;\n          filteredLog.forEach(function(log) {\n            if (log.message.match(regex)) {\n              found = true;\n            }\n          });\n          if (!found) {\n            throw new Error('expected an error that matches ' + regex);\n          }\n        });\n      }\n\n      beforeEach(function() {\n        util = require('util');\n        webdriver = require('selenium-webdriver');\n      });\n\n      // For now, we only test on Chrome,\n      // as Safari does not load the page with Protractor's injected scripts,\n      // and Firefox webdriver always disables content security policy (#6358)\n      if (browser.params.browser !== 'chrome') {\n        return;\n      }\n\n      it('should not report errors when the page is loaded', function() {\n        // clear errors so we are not dependent on previous tests\n        clearErrors();\n        // Need to reload the page as the page is already loaded when\n        // we come here\n        browser.driver.getCurrentUrl().then(function(url) {\n          browser.get(url);\n        });\n        expectNoErrors();\n      });\n\n      it('should evaluate expressions', function() {\n        expect(counter.getText()).toEqual('0');\n        incBtn.click();\n        expect(counter.getText()).toEqual('1');\n        expectNoErrors();\n      });\n\n      it('should throw and report an error when using \"eval\"', function() {\n        evilBtn.click();\n        expect(evilError.getText()).toMatch(/Content Security Policy/);\n        expectError(/Content Security Policy/);\n      });\n    </file>\n  </example>\n  */\n\n// `ngCsp` is not implemented as a proper directive any more, because we need it be processed while\n// we bootstrap the app (before `$parse` is instantiated). For this reason, we just have the `csp()`\n// fn that looks for the `ng-csp` attribute anywhere in the current doc.\n\n/**\n * @ngdoc directive\n * @name ngClick\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The ngClick directive allows you to specify custom behavior when\n * an element is clicked.\n *\n * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon\n * click. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-click\">\n     <file name=\"index.html\">\n      <button ng-click=\"count = count + 1\" ng-init=\"count=0\">\n        Increment\n      </button>\n      <span>\n        count: {{count}}\n      </span>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-click', function() {\n         expect(element(by.binding('count')).getText()).toMatch('0');\n         element(by.css('button')).click();\n         expect(element(by.binding('count')).getText()).toMatch('1');\n       });\n     </file>\n   </example>\n */\n/*\n * A collection of directives that allows creation of custom event handlers that are defined as\n * AngularJS expressions and are compiled and executed within the current scope.\n */\nvar ngEventDirectives = {};\n\n// For events that might fire synchronously during DOM manipulation\n// we need to execute their event handlers asynchronously using $evalAsync,\n// so that they are not executed in an inconsistent state.\nvar forceAsyncEvents = {\n  'blur': true,\n  'focus': true\n};\nforEach(\n  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),\n  function(eventName) {\n    var directiveName = directiveNormalize('ng-' + eventName);\n    ngEventDirectives[directiveName] = ['$parse', '$rootScope', function($parse, $rootScope) {\n      return {\n        restrict: 'A',\n        compile: function($element, attr) {\n          // NOTE:\n          // We expose the powerful `$event` object on the scope that provides access to the Window,\n          // etc. This is OK, because expressions are not sandboxed any more (and the expression\n          // sandbox was never meant to be a security feature anyway).\n          var fn = $parse(attr[directiveName]);\n          return function ngEventHandler(scope, element) {\n            element.on(eventName, function(event) {\n              var callback = function() {\n                fn(scope, {$event: event});\n              };\n              if (forceAsyncEvents[eventName] && $rootScope.$$phase) {\n                scope.$evalAsync(callback);\n              } else {\n                scope.$apply(callback);\n              }\n            });\n          };\n        }\n      };\n    }];\n  }\n);\n\n/**\n * @ngdoc directive\n * @name ngDblclick\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.\n *\n * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon\n * a dblclick. (The Event object is available as `$event`)\n *\n * @example\n   <example name=\"ng-dblclick\">\n     <file name=\"index.html\">\n      <button ng-dblclick=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on double click)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousedown\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The ngMousedown directive allows you to specify custom behavior on mousedown event.\n *\n * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon\n * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousedown\">\n     <file name=\"index.html\">\n      <button ng-mousedown=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse down)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseup\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseup event.\n *\n * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon\n * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseup\">\n     <file name=\"index.html\">\n      <button ng-mouseup=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse up)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngMouseover\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseover event.\n *\n * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon\n * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseover\">\n     <file name=\"index.html\">\n      <button ng-mouseover=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse is over)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseenter\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseenter event.\n *\n * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon\n * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseenter\">\n     <file name=\"index.html\">\n      <button ng-mouseenter=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse enters)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseleave\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseleave event.\n *\n * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon\n * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseleave\">\n     <file name=\"index.html\">\n      <button ng-mouseleave=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse leaves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousemove\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mousemove event.\n *\n * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon\n * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousemove\">\n     <file name=\"index.html\">\n      <button ng-mousemove=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse moves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeydown\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on keydown event.\n *\n * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon\n * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keydown\">\n     <file name=\"index.html\">\n      <input ng-keydown=\"count = count + 1\" ng-init=\"count=0\">\n      key down count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeyup\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on keyup event.\n *\n * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon\n * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keyup\">\n     <file name=\"index.html\">\n       <p>Typing in the input box below updates the key count</p>\n       <input ng-keyup=\"count = count + 1\" ng-init=\"count=0\"> key up count: {{count}}\n\n       <p>Typing in the input box below updates the keycode</p>\n       <input ng-keyup=\"event=$event\">\n       <p>event keyCode: {{ event.keyCode }}</p>\n       <p>event altKey: {{ event.altKey }}</p>\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeypress\n * @restrict A\n * @element ANY\n *\n * @description\n * Specify custom behavior on keypress event.\n *\n * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon\n * keypress. ({@link guide/expression#-event- Event object is available as `$event`}\n * and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keypress\">\n     <file name=\"index.html\">\n      <input ng-keypress=\"count = count + 1\" ng-init=\"count=0\">\n      key press count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSubmit\n * @restrict A\n * @element form\n * @priority 0\n *\n * @description\n * Enables binding AngularJS expressions to onsubmit events.\n *\n * Additionally it prevents the default action (which for form means sending the request to the\n * server and reloading the current page), but only if the form does not contain `action`,\n * `data-action`, or `x-action` attributes.\n *\n * <div class=\"alert alert-warning\">\n * **Warning:** Be careful not to cause \"double-submission\" by using both the `ngClick` and\n * `ngSubmit` handlers together. See the\n * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}\n * for a detailed discussion of when `ngSubmit` may be triggered.\n * </div>\n *\n * @param {expression} ngSubmit {@link guide/expression Expression} to eval.\n * ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example module=\"submitExample\" name=\"ng-submit\">\n     <file name=\"index.html\">\n      <script>\n        angular.module('submitExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.list = [];\n            $scope.text = 'hello';\n            $scope.submit = function() {\n              if ($scope.text) {\n                $scope.list.push(this.text);\n                $scope.text = '';\n              }\n            };\n          }]);\n      </script>\n      <form ng-submit=\"submit()\" ng-controller=\"ExampleController\">\n        Enter text and hit enter:\n        <input type=\"text\" ng-model=\"text\" name=\"text\" />\n        <input type=\"submit\" id=\"submit\" value=\"Submit\" />\n        <pre>list={{list}}</pre>\n      </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-submit', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n         expect(element(by.model('text')).getAttribute('value')).toBe('');\n       });\n       it('should ignore empty strings', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n        });\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngFocus\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on focus event.\n *\n * Note: As the `focus` event is executed synchronously when calling `input.focus()`\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon\n * focus. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngBlur\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on blur event.\n *\n * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when\n * an element has lost focus.\n *\n * Note: As the `blur` event is executed synchronously also during DOM manipulations\n * (e.g. removing a focussed input),\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon\n * blur. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngCopy\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on copy event.\n *\n * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon\n * copy. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-copy\">\n     <file name=\"index.html\">\n      <input ng-copy=\"copied=true\" ng-init=\"copied=false; value='copy me'\" ng-model=\"value\">\n      copied: {{copied}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngCut\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on cut event.\n *\n * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon\n * cut. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-cut\">\n     <file name=\"index.html\">\n      <input ng-cut=\"cut=true\" ng-init=\"cut=false; value='cut me'\" ng-model=\"value\">\n      cut: {{cut}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngPaste\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on paste event.\n *\n * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon\n * paste. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-paste\">\n     <file name=\"index.html\">\n      <input ng-paste=\"paste=true\" ng-init=\"paste=false\" placeholder='paste here'>\n      pasted: {{paste}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngIf\n * @restrict A\n * @multiElement\n *\n * @description\n * The `ngIf` directive removes or recreates a portion of the DOM tree based on an\n * {expression}. If the expression assigned to `ngIf` evaluates to a false\n * value then the element is removed from the DOM, otherwise a clone of the\n * element is reinserted into the DOM.\n *\n * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the\n * element in the DOM rather than changing its visibility via the `display` css property.  A common\n * case when this difference is significant is when using css selectors that rely on an element's\n * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.\n *\n * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope\n * is created when the element is restored.  The scope created within `ngIf` inherits from\n * its parent scope using\n * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).\n * An important implication of this is if `ngModel` is used within `ngIf` to bind to\n * a javascript primitive defined in the parent scope. In this case any modifications made to the\n * variable within the child scope will override (hide) the value in the parent scope.\n *\n * Also, `ngIf` recreates elements using their compiled state. An example of this behavior\n * is if an element's class attribute is directly modified after it's compiled, using something like\n * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element\n * the added class will be lost because the original compiled state is used to regenerate the element.\n *\n * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`\n * and `leave` effects.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container |\n * | {@link ng.$animate#leave leave}  | just before the `ngIf` contents are removed from the DOM |\n *\n * @element ANY\n * @scope\n * @priority 600\n * @param {expression} ngIf If the {@link guide/expression expression} is falsy then\n *     the element is removed from the DOM tree. If it is truthy a copy of the compiled\n *     element is added to the DOM tree.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-if\">\n    <file name=\"index.html\">\n      <label>Click me: <input type=\"checkbox\" ng-model=\"checked\" ng-init=\"checked=true\" /></label><br/>\n      Show when checked:\n      <span ng-if=\"checked\" class=\"animate-if\">\n        This is removed when the checkbox is unchecked.\n      </span>\n    </file>\n    <file name=\"animations.css\">\n      .animate-if {\n        background:white;\n        border:1px solid black;\n        padding:10px;\n      }\n\n      .animate-if.ng-enter, .animate-if.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n      }\n\n      .animate-if.ng-enter,\n      .animate-if.ng-leave.ng-leave-active {\n        opacity:0;\n      }\n\n      .animate-if.ng-leave,\n      .animate-if.ng-enter.ng-enter-active {\n        opacity:1;\n      }\n    </file>\n  </example>\n */\nvar ngIfDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    multiElement: true,\n    transclude: 'element',\n    priority: 600,\n    terminal: true,\n    restrict: 'A',\n    $$tlb: true,\n    link: function($scope, $element, $attr, ctrl, $transclude) {\n        var block, childScope, previousElements;\n        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {\n\n          if (value) {\n            if (!childScope) {\n              $transclude(function(clone, newScope) {\n                childScope = newScope;\n                clone[clone.length++] = $compile.$$createComment('end ngIf', $attr.ngIf);\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block = {\n                  clone: clone\n                };\n                $animate.enter(clone, $element.parent(), $element);\n              });\n            }\n          } else {\n            if (previousElements) {\n              previousElements.remove();\n              previousElements = null;\n            }\n            if (childScope) {\n              childScope.$destroy();\n              childScope = null;\n            }\n            if (block) {\n              previousElements = getBlockNodes(block.clone);\n              $animate.leave(previousElements).done(function(response) {\n                if (response !== false) previousElements = null;\n              });\n              block = null;\n            }\n          }\n        });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngInclude\n * @restrict ECA\n * @scope\n * @priority -400\n *\n * @description\n * Fetches, compiles and includes an external HTML fragment.\n *\n * By default, the template URL is restricted to the same domain and protocol as the\n * application document. This is done by calling {@link $sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols\n * you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or\n * {@link $sce#trustAsResourceUrl wrap them} as trusted values. Refer to AngularJS's {@link\n * ng.$sce Strict Contextual Escaping}.\n *\n * In addition, the browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy may further restrict whether the template is successfully loaded.\n * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`\n * access on some browsers.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the expression changes, on the new include |\n * | {@link ng.$animate#leave leave}  | when the expression changes, on the old include |\n *\n * The enter and leave animation occur concurrently.\n *\n * @param {string} ngInclude|src AngularJS expression evaluating to URL. If the source is a string constant,\n *                 make sure you wrap it in **single** quotes, e.g. `src=\"'myPartialTemplate.html'\"`.\n * @param {string=} onload Expression to evaluate when a new partial is loaded.\n *                  <div class=\"alert alert-warning\">\n *                  **Note:** When using onload on SVG elements in IE11, the browser will try to call\n *                  a function with the name on the window element, which will usually throw a\n *                  \"function is undefined\" error. To fix this, you can instead use `data-onload` or a\n *                  different form that {@link guide/directive#normalization matches} `onload`.\n *                  </div>\n   *\n * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the content is loaded.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.\n *\n * @example\n  <example module=\"includeExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-include\">\n    <file name=\"index.html\">\n     <div ng-controller=\"ExampleController\">\n       <select ng-model=\"template\" ng-options=\"t.name for t in templates\">\n        <option value=\"\">(blank)</option>\n       </select>\n       url of the template: <code>{{template.url}}</code>\n       <hr/>\n       <div class=\"slide-animate-container\">\n         <div class=\"slide-animate\" ng-include=\"template.url\"></div>\n       </div>\n     </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('includeExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.templates =\n            [{ name: 'template1.html', url: 'template1.html'},\n             { name: 'template2.html', url: 'template2.html'}];\n          $scope.template = $scope.templates[0];\n        }]);\n     </file>\n    <file name=\"template1.html\">\n      Content of template1.html\n    </file>\n    <file name=\"template2.html\">\n      Content of template2.html\n    </file>\n    <file name=\"animations.css\">\n      .slide-animate-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .slide-animate {\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter, .slide-animate.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n        display:block;\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter {\n        top:-50px;\n      }\n      .slide-animate.ng-enter.ng-enter-active {\n        top:0;\n      }\n\n      .slide-animate.ng-leave {\n        top:0;\n      }\n      .slide-animate.ng-leave.ng-leave-active {\n        top:50px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var templateSelect = element(by.model('template'));\n      var includeElem = element(by.css('[ng-include]'));\n\n      it('should load template1.html', function() {\n        expect(includeElem.getText()).toMatch(/Content of template1.html/);\n      });\n\n      it('should load template2.html', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          // See https://github.com/angular/protractor/issues/480\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(2).click();\n        expect(includeElem.getText()).toMatch(/Content of template2.html/);\n      });\n\n      it('should change to blank', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(0).click();\n        expect(includeElem.isPresent()).toBe(false);\n      });\n    </file>\n  </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentRequested\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted every time the ngInclude content is requested.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentLoaded\n * @eventType emit on the current ngInclude scope\n * @description\n * Emitted every time the ngInclude content is reloaded.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentError\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted when a template HTTP request yields an erroneous response (status < 200 || status > 299)\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\nvar ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',\n                  function($templateRequest,   $anchorScroll,   $animate) {\n  return {\n    restrict: 'ECA',\n    priority: 400,\n    terminal: true,\n    transclude: 'element',\n    controller: angular.noop,\n    compile: function(element, attr) {\n      var srcExp = attr.ngInclude || attr.src,\n          onloadExp = attr.onload || '',\n          autoScrollExp = attr.autoscroll;\n\n      return function(scope, $element, $attr, ctrl, $transclude) {\n        var changeCounter = 0,\n            currentScope,\n            previousElement,\n            currentElement;\n\n        var cleanupLastIncludeContent = function() {\n          if (previousElement) {\n            previousElement.remove();\n            previousElement = null;\n          }\n          if (currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if (currentElement) {\n            $animate.leave(currentElement).done(function(response) {\n              if (response !== false) previousElement = null;\n            });\n            previousElement = currentElement;\n            currentElement = null;\n          }\n        };\n\n        scope.$watch(srcExp, function ngIncludeWatchAction(src) {\n          var afterAnimation = function(response) {\n            if (response !== false && isDefined(autoScrollExp) &&\n              (!autoScrollExp || scope.$eval(autoScrollExp))) {\n                $anchorScroll();\n            }\n          };\n          var thisChangeId = ++changeCounter;\n\n          if (src) {\n            //set the 2nd param to true to ignore the template request error so that the inner\n            //contents and scope can be cleaned up.\n            $templateRequest(src, true).then(function(response) {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId !== changeCounter) return;\n              var newScope = scope.$new();\n              ctrl.template = response;\n\n              // Note: This will also link all children of ng-include that were contained in the original\n              // html. If that content contains controllers, ... they could pollute/change the scope.\n              // However, using ng-include on an element with additional content does not make sense...\n              // Note: We can't remove them in the cloneAttchFn of $transclude as that\n              // function is called before linking the content, which would apply child\n              // directives to non existing elements.\n              var clone = $transclude(newScope, function(clone) {\n                cleanupLastIncludeContent();\n                $animate.enter(clone, null, $element).done(afterAnimation);\n              });\n\n              currentScope = newScope;\n              currentElement = clone;\n\n              currentScope.$emit('$includeContentLoaded', src);\n              scope.$eval(onloadExp);\n            }, function() {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId === changeCounter) {\n                cleanupLastIncludeContent();\n                scope.$emit('$includeContentError', src);\n              }\n            });\n            scope.$emit('$includeContentRequested', src);\n          } else {\n            cleanupLastIncludeContent();\n            ctrl.template = null;\n          }\n        });\n      };\n    }\n  };\n}];\n\n// This directive is called during the $transclude call of the first `ngInclude` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngInclude\n// is called.\nvar ngIncludeFillContentDirective = ['$compile',\n  function($compile) {\n    return {\n      restrict: 'ECA',\n      priority: -400,\n      require: 'ngInclude',\n      link: function(scope, $element, $attr, ctrl) {\n        if (toString.call($element[0]).match(/SVG/)) {\n          // WebKit: https://bugs.webkit.org/show_bug.cgi?id=135698 --- SVG elements do not\n          // support innerHTML, so detect this here and try to generate the contents\n          // specially.\n          $element.empty();\n          $compile(jqLiteBuildFragment(ctrl.template, window.document).childNodes)(scope,\n              function namespaceAdaptedClone(clone) {\n            $element.append(clone);\n          }, {futureParentElement: $element});\n          return;\n        }\n\n        $element.html(ctrl.template);\n        $compile($element.contents())(scope);\n      }\n    };\n  }];\n\n/**\n * @ngdoc directive\n * @name ngInit\n * @restrict AC\n * @priority 450\n * @element ANY\n *\n * @param {expression} ngInit {@link guide/expression Expression} to eval.\n *\n * @description\n * The `ngInit` directive allows you to evaluate an expression in the\n * current scope.\n *\n * <div class=\"alert alert-danger\">\n * This directive can be abused to add unnecessary amounts of logic into your templates.\n * There are only a few appropriate uses of `ngInit`:\n * <ul>\n *   <li>aliasing special properties of {@link ng.directive:ngRepeat `ngRepeat`},\n *     as seen in the demo below.</li>\n *   <li>initializing data during development, or for examples, as seen throughout these docs.</li>\n *   <li>injecting data via server side scripting.</li>\n * </ul>\n *\n * Besides these few cases, you should use {@link guide/component Components} or\n * {@link guide/controller Controllers} rather than `ngInit` to initialize values on a scope.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note**: If you have assignment in `ngInit` along with a {@link ng.$filter `filter`}, make\n * sure you have parentheses to ensure correct operator precedence:\n * <pre class=\"prettyprint\">\n * `<div ng-init=\"test1 = ($index | toString)\"></div>`\n * </pre>\n * </div>\n *\n * @example\n   <example module=\"initExample\" name=\"ng-init\">\n     <file name=\"index.html\">\n   <script>\n     angular.module('initExample', [])\n       .controller('ExampleController', ['$scope', function($scope) {\n         $scope.list = [['a', 'b'], ['c', 'd']];\n       }]);\n   </script>\n   <div ng-controller=\"ExampleController\">\n     <div ng-repeat=\"innerList in list\" ng-init=\"outerIndex = $index\">\n       <div ng-repeat=\"value in innerList\" ng-init=\"innerIndex = $index\">\n          <span class=\"example-init\">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>\n       </div>\n     </div>\n   </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should alias index positions', function() {\n         var elements = element.all(by.css('.example-init'));\n         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');\n         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');\n         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');\n         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');\n       });\n     </file>\n   </example>\n */\nvar ngInitDirective = ngDirective({\n  priority: 450,\n  compile: function() {\n    return {\n      pre: function(scope, element, attrs) {\n        scope.$eval(attrs.ngInit);\n      }\n    };\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngList\n * @restrict A\n * @priority 100\n *\n * @param {string=} ngList optional delimiter that should be used to split the value.\n *\n * @description\n * Text input that converts between a delimited string and an array of strings. The default\n * delimiter is a comma followed by a space - equivalent to `ng-list=\", \"`. You can specify a custom\n * delimiter as the value of the `ngList` attribute - for example, `ng-list=\" | \"`.\n *\n * The behaviour of the directive is affected by the use of the `ngTrim` attribute.\n * * If `ngTrim` is set to `\"false\"` then whitespace around both the separator and each\n *   list item is respected. This implies that the user of the directive is responsible for\n *   dealing with whitespace but also allows you to use whitespace as a delimiter, such as a\n *   tab or newline character.\n * * Otherwise whitespace around the delimiter is ignored when splitting (although it is respected\n *   when joining the list items back together) and whitespace around each list item is stripped\n *   before it is added to the model.\n *\n * @example\n * ### Validation\n *\n * <example name=\"ngList-directive\" module=\"listExample\">\n *   <file name=\"app.js\">\n *      angular.module('listExample', [])\n *        .controller('ExampleController', ['$scope', function($scope) {\n *          $scope.names = ['morpheus', 'neo', 'trinity'];\n *        }]);\n *   </file>\n *   <file name=\"index.html\">\n *    <form name=\"myForm\" ng-controller=\"ExampleController\">\n *      <label>List: <input name=\"namesInput\" ng-model=\"names\" ng-list required></label>\n *      <span role=\"alert\">\n *        <span class=\"error\" ng-show=\"myForm.namesInput.$error.required\">\n *        Required!</span>\n *      </span>\n *      <br>\n *      <tt>names = {{names}}</tt><br/>\n *      <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>\n *      <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>\n *      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n *      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n *     </form>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var listInput = element(by.model('names'));\n *     var names = element(by.exactBinding('names'));\n *     var valid = element(by.binding('myForm.namesInput.$valid'));\n *     var error = element(by.css('span.error'));\n *\n *     it('should initialize to model', function() {\n *       expect(names.getText()).toContain('[\"morpheus\",\"neo\",\"trinity\"]');\n *       expect(valid.getText()).toContain('true');\n *       expect(error.getCssValue('display')).toBe('none');\n *     });\n *\n *     it('should be invalid if empty', function() {\n *       listInput.clear();\n *       listInput.sendKeys('');\n *\n *       expect(names.getText()).toContain('');\n *       expect(valid.getText()).toContain('false');\n *       expect(error.getCssValue('display')).not.toBe('none');\n *     });\n *   </file>\n * </example>\n *\n * @example\n * ### Splitting on newline\n *\n * <example name=\"ngList-directive-newlines\">\n *   <file name=\"index.html\">\n *    <textarea ng-model=\"list\" ng-list=\"&#10;\" ng-trim=\"false\"></textarea>\n *    <pre>{{ list | json }}</pre>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it(\"should split the text by newlines\", function() {\n *       var listInput = element(by.model('list'));\n *       var output = element(by.binding('list | json'));\n *       listInput.sendKeys('abc\\ndef\\nghi');\n *       expect(output.getText()).toContain('[\\n  \"abc\",\\n  \"def\",\\n  \"ghi\"\\n]');\n *     });\n *   </file>\n * </example>\n *\n */\nvar ngListDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    require: 'ngModel',\n    link: function(scope, element, attr, ctrl) {\n      var ngList = attr.ngList || ', ';\n      var trimValues = attr.ngTrim !== 'false';\n      var separator = trimValues ? trim(ngList) : ngList;\n\n      var parse = function(viewValue) {\n        // If the viewValue is invalid (say required but empty) it will be `undefined`\n        if (isUndefined(viewValue)) return;\n\n        var list = [];\n\n        if (viewValue) {\n          forEach(viewValue.split(separator), function(value) {\n            if (value) list.push(trimValues ? trim(value) : value);\n          });\n        }\n\n        return list;\n      };\n\n      ctrl.$parsers.push(parse);\n      ctrl.$formatters.push(function(value) {\n        if (isArray(value)) {\n          return value.join(ngList);\n        }\n\n        return undefined;\n      });\n\n      // Override the standard $isEmpty because an empty array means the input is empty.\n      ctrl.$isEmpty = function(value) {\n        return !value || !value.length;\n      };\n    }\n  };\n};\n\n/* global VALID_CLASS: true,\n  INVALID_CLASS: true,\n  PRISTINE_CLASS: true,\n  DIRTY_CLASS: true,\n  UNTOUCHED_CLASS: true,\n  TOUCHED_CLASS: true,\n  PENDING_CLASS: true,\n  addSetValidityMethod: true,\n  setupValidity: true,\n  defaultModelOptions: false\n*/\n\n\nvar VALID_CLASS = 'ng-valid',\n    INVALID_CLASS = 'ng-invalid',\n    PRISTINE_CLASS = 'ng-pristine',\n    DIRTY_CLASS = 'ng-dirty',\n    UNTOUCHED_CLASS = 'ng-untouched',\n    TOUCHED_CLASS = 'ng-touched',\n    EMPTY_CLASS = 'ng-empty',\n    NOT_EMPTY_CLASS = 'ng-not-empty';\n\nvar ngModelMinErr = minErr('ngModel');\n\n/**\n * @ngdoc type\n * @name ngModel.NgModelController\n * @property {*} $viewValue The actual value from the control's view. For `input` elements, this is a\n * String. See {@link ngModel.NgModelController#$setViewValue} for information about when the $viewValue\n * is set.\n *\n * @property {*} $modelValue The value in the model that the control is bound to.\n *\n * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever\n *  the control updates the ngModelController with a new {@link ngModel.NgModelController#$viewValue\n    `$viewValue`} from the DOM, usually via user input.\n    See {@link ngModel.NgModelController#$setViewValue `$setViewValue()`} for a detailed lifecycle explanation.\n    Note that the `$parsers` are not called when the bound ngModel expression changes programmatically.\n\n  The functions are called in array order, each passing\n    its return value through to the next. The last return value is forwarded to the\n    {@link ngModel.NgModelController#$validators `$validators`} collection.\n\n  Parsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue\n    `$viewValue`}.\n\n  Returning `undefined` from a parser means a parse error occurred. In that case,\n    no {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel`\n    will be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`}\n    is set to `true`. The parse error is stored in `ngModel.$error.parse`.\n\n  This simple example shows a parser that would convert text input value to lowercase:\n * ```js\n * function parse(value) {\n *   if (value) {\n *     return value.toLowerCase();\n *   }\n * }\n * ngModelController.$parsers.push(parse);\n * ```\n\n *\n * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever\n    the bound ngModel expression changes programmatically. The `$formatters` are not called when the\n    value of the control is changed by user interaction.\n\n  Formatters are used to format / convert the {@link ngModel.NgModelController#$modelValue\n    `$modelValue`} for display in the control.\n\n  The functions are called in reverse array order, each passing the value through to the\n    next. The last return value is used as the actual DOM value.\n\n  This simple example shows a formatter that would convert the model value to uppercase:\n\n * ```js\n * function format(value) {\n *   if (value) {\n *     return value.toUpperCase();\n *   }\n * }\n * ngModel.$formatters.push(format);\n * ```\n *\n * @property {Object.<string, function>} $validators A collection of validators that are applied\n *      whenever the model value changes. The key value within the object refers to the name of the\n *      validator while the function refers to the validation operation. The validation operation is\n *      provided with the model value as an argument and must return a true or false value depending\n *      on the response of that validation.\n *\n * ```js\n * ngModel.$validators.validCharacters = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *   return /[0-9]+/.test(value) &&\n *          /[a-z]+/.test(value) &&\n *          /[A-Z]+/.test(value) &&\n *          /\\W+/.test(value);\n * };\n * ```\n *\n * @property {Object.<string, function>} $asyncValidators A collection of validations that are expected to\n *      perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided\n *      is expected to return a promise when it is run during the model validation process. Once the promise\n *      is delivered then the validation status will be set to true when fulfilled and false when rejected.\n *      When the asynchronous validators are triggered, each of the validators will run in parallel and the model\n *      value will only be updated once all validators have been fulfilled. As long as an asynchronous validator\n *      is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators\n *      will only run once all synchronous validators have passed.\n *\n * Please note that if $http is used then it is important that the server returns a success HTTP response code\n * in order to fulfill the validation and a status level of `4xx` in order to reject the validation.\n *\n * ```js\n * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *\n *   // Lookup user by username\n *   return $http.get('/api/users/' + value).\n *      then(function resolved() {\n *        //username exists, this means validation fails\n *        return $q.reject('exists');\n *      }, function rejected() {\n *        //username does not exist, therefore this validation passes\n *        return true;\n *      });\n * };\n * ```\n *\n * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever\n *     a change to {@link ngModel.NgModelController#$viewValue `$viewValue`} has caused a change\n *     to {@link ngModel.NgModelController#$modelValue `$modelValue`}.\n *     It is called with no arguments, and its return value is ignored.\n *     This can be used in place of additional $watches against the model value.\n *\n * @property {Object} $error An object hash with all failing validator ids as keys.\n * @property {Object} $pending An object hash with all pending validator ids as keys.\n *\n * @property {boolean} $untouched True if control has not lost focus yet.\n * @property {boolean} $touched True if control has lost focus.\n * @property {boolean} $pristine True if user has not interacted with the control yet.\n * @property {boolean} $dirty True if user has already interacted with the control.\n * @property {boolean} $valid True if there is no error.\n * @property {boolean} $invalid True if at least one error on the control.\n * @property {string} $name The name attribute of the control.\n *\n * @description\n *\n * `NgModelController` provides API for the {@link ngModel `ngModel`} directive.\n * The controller contains services for data-binding, validation, CSS updates, and value formatting\n * and parsing. It purposefully does not contain any logic which deals with DOM rendering or\n * listening to DOM events.\n * Such DOM related logic should be provided by other directives which make use of\n * `NgModelController` for data-binding to control elements.\n * AngularJS provides this DOM logic for most {@link input `input`} elements.\n * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example\n * custom control example} that uses `ngModelController` to bind to `contenteditable` elements.\n *\n * @example\n * ### Custom Control Example\n * This example shows how to use `NgModelController` with a custom control to achieve\n * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)\n * collaborate together to achieve the desired result.\n *\n * `contenteditable` is an HTML5 attribute, which tells the browser to let the element\n * contents be edited in place by the user.\n *\n * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}\n * module to automatically remove \"bad\" content like inline event listener (e.g. `<span onclick=\"...\">`).\n * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks\n * that content using the `$sce` service.\n *\n * <example name=\"NgModelController\" module=\"customControl\" deps=\"angular-sanitize.js\">\n    <file name=\"style.css\">\n      [contenteditable] {\n        border: 1px solid black;\n        background-color: white;\n        min-height: 20px;\n      }\n\n      .ng-invalid {\n        border: 1px solid red;\n      }\n\n    </file>\n    <file name=\"script.js\">\n      angular.module('customControl', ['ngSanitize']).\n        directive('contenteditable', ['$sce', function($sce) {\n          return {\n            restrict: 'A', // only activate on element attribute\n            require: '?ngModel', // get a hold of NgModelController\n            link: function(scope, element, attrs, ngModel) {\n              if (!ngModel) return; // do nothing if no ng-model\n\n              // Specify how UI should be updated\n              ngModel.$render = function() {\n                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));\n              };\n\n              // Listen for change events to enable binding\n              element.on('blur keyup change', function() {\n                scope.$evalAsync(read);\n              });\n              read(); // initialize\n\n              // Write data to the model\n              function read() {\n                var html = element.html();\n                // When we clear the content editable the browser leaves a <br> behind\n                // If strip-br attribute is provided then we strip this out\n                if (attrs.stripBr && html === '<br>') {\n                  html = '';\n                }\n                ngModel.$setViewValue(html);\n              }\n            }\n          };\n        }]);\n    </file>\n    <file name=\"index.html\">\n      <form name=\"myForm\">\n       <div contenteditable\n            name=\"myWidget\" ng-model=\"userContent\"\n            strip-br=\"true\"\n            required>Change me!</div>\n        <span ng-show=\"myForm.myWidget.$error.required\">Required!</span>\n       <hr>\n       <textarea ng-model=\"userContent\" aria-label=\"Dynamic textarea\"></textarea>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n    it('should data-bind and become invalid', function() {\n      if (browser.params.browser === 'safari' || browser.params.browser === 'firefox') {\n        // SafariDriver can't handle contenteditable\n        // and Firefox driver can't clear contenteditables very well\n        return;\n      }\n      var contentEditable = element(by.css('[contenteditable]'));\n      var content = 'Change me!';\n\n      expect(contentEditable.getText()).toEqual(content);\n\n      contentEditable.clear();\n      contentEditable.sendKeys(protractor.Key.BACK_SPACE);\n      expect(contentEditable.getText()).toEqual('');\n      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);\n    });\n    </file>\n * </example>\n *\n *\n */\nNgModelController.$inject = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$q', '$interpolate'];\nfunction NgModelController($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $q, $interpolate) {\n  this.$viewValue = Number.NaN;\n  this.$modelValue = Number.NaN;\n  this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity.\n  this.$validators = {};\n  this.$asyncValidators = {};\n  this.$parsers = [];\n  this.$formatters = [];\n  this.$viewChangeListeners = [];\n  this.$untouched = true;\n  this.$touched = false;\n  this.$pristine = true;\n  this.$dirty = false;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$error = {}; // keep invalid keys here\n  this.$$success = {}; // keep valid keys here\n  this.$pending = undefined; // keep pending keys here\n  this.$name = $interpolate($attr.name || '', false)($scope);\n  this.$$parentForm = nullFormCtrl;\n  this.$options = defaultModelOptions;\n  this.$$updateEvents = '';\n  // Attach the correct context to the event handler function for updateOn\n  this.$$updateEventHandler = this.$$updateEventHandler.bind(this);\n\n  this.$$parsedNgModel = $parse($attr.ngModel);\n  this.$$parsedNgModelAssign = this.$$parsedNgModel.assign;\n  this.$$ngModelGet = this.$$parsedNgModel;\n  this.$$ngModelSet = this.$$parsedNgModelAssign;\n  this.$$pendingDebounce = null;\n  this.$$parserValid = undefined;\n\n  this.$$currentValidationRunId = 0;\n\n  // https://github.com/angular/angular.js/issues/15833\n  // Prevent `$$scope` from being iterated over by `copy` when NgModelController is deep watched\n  Object.defineProperty(this, '$$scope', {value: $scope});\n  this.$$attr = $attr;\n  this.$$element = $element;\n  this.$$animate = $animate;\n  this.$$timeout = $timeout;\n  this.$$parse = $parse;\n  this.$$q = $q;\n  this.$$exceptionHandler = $exceptionHandler;\n\n  setupValidity(this);\n  setupModelWatcher(this);\n}\n\nNgModelController.prototype = {\n  $$initGetterSetters: function() {\n    if (this.$options.getOption('getterSetter')) {\n      var invokeModelGetter = this.$$parse(this.$$attr.ngModel + '()'),\n          invokeModelSetter = this.$$parse(this.$$attr.ngModel + '($$$p)');\n\n      this.$$ngModelGet = function($scope) {\n        var modelValue = this.$$parsedNgModel($scope);\n        if (isFunction(modelValue)) {\n          modelValue = invokeModelGetter($scope);\n        }\n        return modelValue;\n      };\n      this.$$ngModelSet = function($scope, newValue) {\n        if (isFunction(this.$$parsedNgModel($scope))) {\n          invokeModelSetter($scope, {$$$p: newValue});\n        } else {\n          this.$$parsedNgModelAssign($scope, newValue);\n        }\n      };\n    } else if (!this.$$parsedNgModel.assign) {\n      throw ngModelMinErr('nonassign', 'Expression \\'{0}\\' is non-assignable. Element: {1}',\n          this.$$attr.ngModel, startingTag(this.$$element));\n    }\n  },\n\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$render\n   *\n   * @description\n   * Called when the view needs to be updated. It is expected that the user of the ng-model\n   * directive will implement this method.\n   *\n   * The `$render()` method is invoked in the following situations:\n   *\n   * * `$rollbackViewValue()` is called.  If we are rolling back the view value to the last\n   *   committed value then `$render()` is called to update the input control.\n   * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and\n   *   the `$viewValue` are different from last time.\n   *\n   * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of\n   * `$modelValue` and `$viewValue` are actually different from their previous values. If `$modelValue`\n   * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be\n   * invoked if you only change a property on the objects.\n   */\n  $render: noop,\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$isEmpty\n   *\n   * @description\n   * This is called when we need to determine if the value of an input is empty.\n   *\n   * For instance, the required directive does this to work out if the input has data or not.\n   *\n   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.\n   *\n   * You can override this for input directives whose concept of being empty is different from the\n   * default. The `checkboxInputType` directive does this because in its case a value of `false`\n   * implies empty.\n   *\n   * @param {*} value The value of the input to check for emptiness.\n   * @returns {boolean} True if `value` is \"empty\".\n   */\n  $isEmpty: function(value) {\n    // eslint-disable-next-line no-self-compare\n    return isUndefined(value) || value === '' || value === null || value !== value;\n  },\n\n  $$updateEmptyClasses: function(value) {\n    if (this.$isEmpty(value)) {\n      this.$$animate.removeClass(this.$$element, NOT_EMPTY_CLASS);\n      this.$$animate.addClass(this.$$element, EMPTY_CLASS);\n    } else {\n      this.$$animate.removeClass(this.$$element, EMPTY_CLASS);\n      this.$$animate.addClass(this.$$element, NOT_EMPTY_CLASS);\n    }\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setPristine\n   *\n   * @description\n   * Sets the control to its pristine state.\n   *\n   * This method can be called to remove the `ng-dirty` class and set the control to its pristine\n   * state (`ng-pristine` class). A model is considered to be pristine when the control\n   * has not been changed from when first compiled.\n   */\n  $setPristine: function() {\n    this.$dirty = false;\n    this.$pristine = true;\n    this.$$animate.removeClass(this.$$element, DIRTY_CLASS);\n    this.$$animate.addClass(this.$$element, PRISTINE_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setDirty\n   *\n   * @description\n   * Sets the control to its dirty state.\n   *\n   * This method can be called to remove the `ng-pristine` class and set the control to its dirty\n   * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed\n   * from when first compiled.\n   */\n  $setDirty: function() {\n    this.$dirty = true;\n    this.$pristine = false;\n    this.$$animate.removeClass(this.$$element, PRISTINE_CLASS);\n    this.$$animate.addClass(this.$$element, DIRTY_CLASS);\n    this.$$parentForm.$setDirty();\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setUntouched\n   *\n   * @description\n   * Sets the control to its untouched state.\n   *\n   * This method can be called to remove the `ng-touched` class and set the control to its\n   * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched\n   * by default, however this function can be used to restore that state if the model has\n   * already been touched by the user.\n   */\n  $setUntouched: function() {\n    this.$touched = false;\n    this.$untouched = true;\n    this.$$animate.setClass(this.$$element, UNTOUCHED_CLASS, TOUCHED_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setTouched\n   *\n   * @description\n   * Sets the control to its touched state.\n   *\n   * This method can be called to remove the `ng-untouched` class and set the control to its\n   * touched state (`ng-touched` class). A model is considered to be touched when the user has\n   * first focused the control element and then shifted focus away from the control (blur event).\n   */\n  $setTouched: function() {\n    this.$touched = true;\n    this.$untouched = false;\n    this.$$animate.setClass(this.$$element, TOUCHED_CLASS, UNTOUCHED_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$rollbackViewValue\n   *\n   * @description\n   * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`,\n   * which may be caused by a pending debounced event or because the input is waiting for some\n   * future event.\n   *\n   * If you have an input that uses `ng-model-options` to set up debounced updates or updates that\n   * depend on special events such as `blur`, there can be a period when the `$viewValue` is out of\n   * sync with the ngModel's `$modelValue`.\n   *\n   * In this case, you can use `$rollbackViewValue()` to manually cancel the debounced / future update\n   * and reset the input to the last committed view value.\n   *\n   * It is also possible that you run into difficulties if you try to update the ngModel's `$modelValue`\n   * programmatically before these debounced/future events have resolved/occurred, because AngularJS's\n   * dirty checking mechanism is not able to tell whether the model has actually changed or not.\n   *\n   * The `$rollbackViewValue()` method should be called before programmatically changing the model of an\n   * input which may have such events pending. This is important in order to make sure that the\n   * input field will be updated with the new model value and any pending operations are cancelled.\n   *\n   * @example\n   * <example name=\"ng-model-cancel-update\" module=\"cancel-update-example\">\n   *   <file name=\"app.js\">\n   *     angular.module('cancel-update-example', [])\n   *\n   *     .controller('CancelUpdateController', ['$scope', function($scope) {\n   *       $scope.model = {value1: '', value2: ''};\n   *\n   *       $scope.setEmpty = function(e, value, rollback) {\n   *         if (e.keyCode === 27) {\n   *           e.preventDefault();\n   *           if (rollback) {\n   *             $scope.myForm[value].$rollbackViewValue();\n   *           }\n   *           $scope.model[value] = '';\n   *         }\n   *       };\n   *     }]);\n   *   </file>\n   *   <file name=\"index.html\">\n   *     <div ng-controller=\"CancelUpdateController\">\n   *       <p>Both of these inputs are only updated if they are blurred. Hitting escape should\n   *       empty them. Follow these steps and observe the difference:</p>\n   *       <ol>\n   *         <li>Type something in the input. You will see that the model is not yet updated</li>\n   *         <li>Press the Escape key.\n   *           <ol>\n   *             <li> In the first example, nothing happens, because the model is already '', and no\n   *             update is detected. If you blur the input, the model will be set to the current view.\n   *             </li>\n   *             <li> In the second example, the pending update is cancelled, and the input is set back\n   *             to the last committed view value (''). Blurring the input does nothing.\n   *             </li>\n   *           </ol>\n   *         </li>\n   *       </ol>\n   *\n   *       <form name=\"myForm\" ng-model-options=\"{ updateOn: 'blur' }\">\n   *         <div>\n   *           <p id=\"inputDescription1\">Without $rollbackViewValue():</p>\n   *           <input name=\"value1\" aria-describedby=\"inputDescription1\" ng-model=\"model.value1\"\n   *                  ng-keydown=\"setEmpty($event, 'value1')\">\n   *           value1: \"{{ model.value1 }}\"\n   *         </div>\n   *\n   *         <div>\n   *           <p id=\"inputDescription2\">With $rollbackViewValue():</p>\n   *           <input name=\"value2\" aria-describedby=\"inputDescription2\" ng-model=\"model.value2\"\n   *                  ng-keydown=\"setEmpty($event, 'value2', true)\">\n   *           value2: \"{{ model.value2 }}\"\n   *         </div>\n   *       </form>\n   *     </div>\n   *   </file>\n       <file name=\"style.css\">\n          div {\n            display: table-cell;\n          }\n          div:nth-child(1) {\n            padding-right: 30px;\n          }\n\n        </file>\n   * </example>\n   */\n  $rollbackViewValue: function() {\n    this.$$timeout.cancel(this.$$pendingDebounce);\n    this.$viewValue = this.$$lastCommittedViewValue;\n    this.$render();\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$validate\n   *\n   * @description\n   * Runs each of the registered validators (first synchronous validators and then\n   * asynchronous validators).\n   * If the validity changes to invalid, the model will be set to `undefined`,\n   * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`.\n   * If the validity changes to valid, it will set the model to the last available valid\n   * `$modelValue`, i.e. either the last parsed value or the last value set from the scope.\n   */\n  $validate: function() {\n    // ignore $validate before model is initialized\n    if (isNumberNaN(this.$modelValue)) {\n      return;\n    }\n\n    var viewValue = this.$$lastCommittedViewValue;\n    // Note: we use the $$rawModelValue as $modelValue might have been\n    // set to undefined during a view -> model update that found validation\n    // errors. We can't parse the view here, since that could change\n    // the model although neither viewValue nor the model on the scope changed\n    var modelValue = this.$$rawModelValue;\n\n    var prevValid = this.$valid;\n    var prevModelValue = this.$modelValue;\n\n    var allowInvalid = this.$options.getOption('allowInvalid');\n\n    var that = this;\n    this.$$runValidators(modelValue, viewValue, function(allValid) {\n      // If there was no change in validity, don't update the model\n      // This prevents changing an invalid modelValue to undefined\n      if (!allowInvalid && prevValid !== allValid) {\n        // Note: Don't check this.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        that.$modelValue = allValid ? modelValue : undefined;\n\n        if (that.$modelValue !== prevModelValue) {\n          that.$$writeModelToScope();\n        }\n      }\n    });\n  },\n\n  $$runValidators: function(modelValue, viewValue, doneCallback) {\n    this.$$currentValidationRunId++;\n    var localValidationRunId = this.$$currentValidationRunId;\n    var that = this;\n\n    // check parser error\n    if (!processParseErrors()) {\n      validationDone(false);\n      return;\n    }\n    if (!processSyncValidators()) {\n      validationDone(false);\n      return;\n    }\n    processAsyncValidators();\n\n    function processParseErrors() {\n      var errorKey = that.$$parserName || 'parse';\n      if (isUndefined(that.$$parserValid)) {\n        setValidity(errorKey, null);\n      } else {\n        if (!that.$$parserValid) {\n          forEach(that.$validators, function(v, name) {\n            setValidity(name, null);\n          });\n          forEach(that.$asyncValidators, function(v, name) {\n            setValidity(name, null);\n          });\n        }\n        // Set the parse error last, to prevent unsetting it, should a $validators key == parserName\n        setValidity(errorKey, that.$$parserValid);\n        return that.$$parserValid;\n      }\n      return true;\n    }\n\n    function processSyncValidators() {\n      var syncValidatorsValid = true;\n      forEach(that.$validators, function(validator, name) {\n        var result = Boolean(validator(modelValue, viewValue));\n        syncValidatorsValid = syncValidatorsValid && result;\n        setValidity(name, result);\n      });\n      if (!syncValidatorsValid) {\n        forEach(that.$asyncValidators, function(v, name) {\n          setValidity(name, null);\n        });\n        return false;\n      }\n      return true;\n    }\n\n    function processAsyncValidators() {\n      var validatorPromises = [];\n      var allValid = true;\n      forEach(that.$asyncValidators, function(validator, name) {\n        var promise = validator(modelValue, viewValue);\n        if (!isPromiseLike(promise)) {\n          throw ngModelMinErr('nopromise',\n            'Expected asynchronous validator to return a promise but got \\'{0}\\' instead.', promise);\n        }\n        setValidity(name, undefined);\n        validatorPromises.push(promise.then(function() {\n          setValidity(name, true);\n        }, function() {\n          allValid = false;\n          setValidity(name, false);\n        }));\n      });\n      if (!validatorPromises.length) {\n        validationDone(true);\n      } else {\n        that.$$q.all(validatorPromises).then(function() {\n          validationDone(allValid);\n        }, noop);\n      }\n    }\n\n    function setValidity(name, isValid) {\n      if (localValidationRunId === that.$$currentValidationRunId) {\n        that.$setValidity(name, isValid);\n      }\n    }\n\n    function validationDone(allValid) {\n      if (localValidationRunId === that.$$currentValidationRunId) {\n\n        doneCallback(allValid);\n      }\n    }\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$commitViewValue\n   *\n   * @description\n   * Commit a pending update to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. this method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  $commitViewValue: function() {\n    var viewValue = this.$viewValue;\n\n    this.$$timeout.cancel(this.$$pendingDebounce);\n\n    // If the view value has not changed then we should just exit, except in the case where there is\n    // a native validator on the element. In this case the validation state may have changed even though\n    // the viewValue has stayed empty.\n    if (this.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !this.$$hasNativeValidators)) {\n      return;\n    }\n    this.$$updateEmptyClasses(viewValue);\n    this.$$lastCommittedViewValue = viewValue;\n\n    // change to dirty\n    if (this.$pristine) {\n      this.$setDirty();\n    }\n    this.$$parseAndValidate();\n  },\n\n  $$parseAndValidate: function() {\n    var viewValue = this.$$lastCommittedViewValue;\n    var modelValue = viewValue;\n    var that = this;\n\n    this.$$parserValid = isUndefined(modelValue) ? undefined : true;\n\n    if (this.$$parserValid) {\n      for (var i = 0; i < this.$parsers.length; i++) {\n        modelValue = this.$parsers[i](modelValue);\n        if (isUndefined(modelValue)) {\n          this.$$parserValid = false;\n          break;\n        }\n      }\n    }\n    if (isNumberNaN(this.$modelValue)) {\n      // this.$modelValue has not been touched yet...\n      this.$modelValue = this.$$ngModelGet(this.$$scope);\n    }\n    var prevModelValue = this.$modelValue;\n    var allowInvalid = this.$options.getOption('allowInvalid');\n    this.$$rawModelValue = modelValue;\n\n    if (allowInvalid) {\n      this.$modelValue = modelValue;\n      writeToModelIfNeeded();\n    }\n\n    // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date.\n    // This can happen if e.g. $setViewValue is called from inside a parser\n    this.$$runValidators(modelValue, this.$$lastCommittedViewValue, function(allValid) {\n      if (!allowInvalid) {\n        // Note: Don't check this.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        that.$modelValue = allValid ? modelValue : undefined;\n        writeToModelIfNeeded();\n      }\n    });\n\n    function writeToModelIfNeeded() {\n      if (that.$modelValue !== prevModelValue) {\n        that.$$writeModelToScope();\n      }\n    }\n  },\n\n  $$writeModelToScope: function() {\n    this.$$ngModelSet(this.$$scope, this.$modelValue);\n    forEach(this.$viewChangeListeners, function(listener) {\n      try {\n        listener();\n      } catch (e) {\n        // eslint-disable-next-line no-invalid-this\n        this.$$exceptionHandler(e);\n      }\n    }, this);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setViewValue\n   *\n   * @description\n   * Update the view value.\n   *\n   * This method should be called when a control wants to change the view value; typically,\n   * this is done from within a DOM event handler. For example, the {@link ng.directive:input input}\n   * directive calls it when the value of the input changes and {@link ng.directive:select select}\n   * calls it when an option is selected.\n   *\n   * When `$setViewValue` is called, the new `value` will be staged for committing through the `$parsers`\n   * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged\n   * value is sent directly for processing through the `$parsers` pipeline. After this, the `$validators` and\n   * `$asyncValidators` are called and the value is applied to `$modelValue`.\n   * Finally, the value is set to the **expression** specified in the `ng-model` attribute and\n   * all the registered change listeners, in the `$viewChangeListeners` list are called.\n   *\n   * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn`\n   * and the `default` trigger is not listed, all those actions will remain pending until one of the\n   * `updateOn` events is triggered on the DOM element.\n   * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions}\n   * directive is used with a custom debounce for this particular event.\n   * Note that a `$digest` is only triggered once the `updateOn` events are fired, or if `debounce`\n   * is specified, once the timer runs out.\n   *\n   * When used with standard inputs, the view value will always be a string (which is in some cases\n   * parsed into another type, such as a `Date` object for `input[date]`.)\n   * However, custom controls might also pass objects to this method. In this case, we should make\n   * a copy of the object before passing it to `$setViewValue`. This is because `ngModel` does not\n   * perform a deep watch of objects, it only looks for a change of identity. If you only change\n   * the property of the object then ngModel will not realize that the object has changed and\n   * will not invoke the `$parsers` and `$validators` pipelines. For this reason, you should\n   * not change properties of the copy once it has been passed to `$setViewValue`.\n   * Otherwise you may cause the model value on the scope to change incorrectly.\n   *\n   * <div class=\"alert alert-info\">\n   * In any case, the value passed to the method should always reflect the current value\n   * of the control. For example, if you are calling `$setViewValue` for an input element,\n   * you should pass the input DOM value. Otherwise, the control and the scope model become\n   * out of sync. It's also important to note that `$setViewValue` does not call `$render` or change\n   * the control's DOM value in any way. If we want to change the control's DOM value\n   * programmatically, we should update the `ngModel` scope expression. Its new value will be\n   * picked up by the model controller, which will run it through the `$formatters`, `$render` it\n   * to update the DOM, and finally call `$validate` on it.\n   * </div>\n   *\n   * @param {*} value value from the view.\n   * @param {string} trigger Event that triggered the update.\n   */\n  $setViewValue: function(value, trigger) {\n    this.$viewValue = value;\n    if (this.$options.getOption('updateOnDefault')) {\n      this.$$debounceViewValueCommit(trigger);\n    }\n  },\n\n  $$debounceViewValueCommit: function(trigger) {\n    var debounceDelay = this.$options.getOption('debounce');\n\n    if (isNumber(debounceDelay[trigger])) {\n      debounceDelay = debounceDelay[trigger];\n    } else if (isNumber(debounceDelay['default'])) {\n      debounceDelay = debounceDelay['default'];\n    }\n\n    this.$$timeout.cancel(this.$$pendingDebounce);\n    var that = this;\n    if (debounceDelay > 0) { // this fails if debounceDelay is an object\n      this.$$pendingDebounce = this.$$timeout(function() {\n        that.$commitViewValue();\n      }, debounceDelay);\n    } else if (this.$$scope.$root.$$phase) {\n      this.$commitViewValue();\n    } else {\n      this.$$scope.$apply(function() {\n        that.$commitViewValue();\n      });\n    }\n  },\n\n  /**\n   * @ngdoc method\n   *\n   * @name ngModel.NgModelController#$overrideModelOptions\n   *\n   * @description\n   *\n   * Override the current model options settings programmatically.\n   *\n   * The previous `ModelOptions` value will not be modified. Instead, a\n   * new `ModelOptions` object will inherit from the previous one overriding\n   * or inheriting settings that are defined in the given parameter.\n   *\n   * See {@link ngModelOptions} for information about what options can be specified\n   * and how model option inheritance works.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** this function only affects the options set on the `ngModelController`,\n   * and not the options on the {@link ngModelOptions} directive from which they might have been\n   * obtained initially.\n   * </div>\n   *\n   * <div class=\"alert alert-danger\">\n   * **Note:** it is not possible to override the `getterSetter` option.\n   * </div>\n   *\n   * @param {Object} options a hash of settings to override the previous options\n   *\n   */\n  $overrideModelOptions: function(options) {\n    this.$options = this.$options.createChild(options);\n    this.$$setUpdateOnEvents();\n  },\n\n  /**\n   * @ngdoc method\n   *\n   * @name  ngModel.NgModelController#$processModelValue\n\n   * @description\n   *\n   * Runs the model -> view pipeline on the current\n   * {@link ngModel.NgModelController#$modelValue $modelValue}.\n   *\n   * The following actions are performed by this method:\n   *\n   * - the `$modelValue` is run through the {@link ngModel.NgModelController#$formatters $formatters}\n   * and the result is set to the {@link ngModel.NgModelController#$viewValue $viewValue}\n   * - the `ng-empty` or `ng-not-empty` class is set on the element\n   * - if the `$viewValue` has changed:\n   *   - {@link ngModel.NgModelController#$render $render} is called on the control\n   *   - the {@link ngModel.NgModelController#$validators $validators} are run and\n   *   the validation status is set.\n   *\n   * This method is called by ngModel internally when the bound scope value changes.\n   * Application developers usually do not have to call this function themselves.\n   *\n   * This function can be used when the `$viewValue` or the rendered DOM value are not correctly\n   * formatted and the `$modelValue` must be run through the `$formatters` again.\n   *\n   * @example\n   * Consider a text input with an autocomplete list (for fruit), where the items are\n   * objects with a name and an id.\n   * A user enters `ap` and then selects `Apricot` from the list.\n   * Based on this, the autocomplete widget will call `$setViewValue({name: 'Apricot', id: 443})`,\n   * but the rendered value will still be `ap`.\n   * The widget can then call `ctrl.$processModelValue()` to run the model -> view\n   * pipeline again, which formats the object to the string `Apricot`,\n   * then updates the `$viewValue`, and finally renders it in the DOM.\n   *\n   * <example module=\"inputExample\" name=\"ng-model-process\">\n     <file name=\"index.html\">\n      <div ng-controller=\"inputController\" style=\"display: flex;\">\n        <div style=\"margin-right: 30px;\">\n          Search Fruit:\n          <basic-autocomplete items=\"items\" on-select=\"selectedFruit = item\"></basic-autocomplete>\n        </div>\n        <div>\n          Model:<br>\n          <pre>{{selectedFruit | json}}</pre>\n        </div>\n      </div>\n     </file>\n     <file name=\"app.js\">\n      angular.module('inputExample', [])\n        .controller('inputController', function($scope) {\n          $scope.items = [\n            {name: 'Apricot', id: 443},\n            {name: 'Clementine', id: 972},\n            {name: 'Durian', id: 169},\n            {name: 'Jackfruit', id: 982},\n            {name: 'Strawberry', id: 863}\n          ];\n        })\n        .component('basicAutocomplete', {\n          bindings: {\n            items: '<',\n            onSelect: '&'\n          },\n          templateUrl: 'autocomplete.html',\n          controller: function($element, $scope) {\n            var that = this;\n            var ngModel;\n\n            that.$postLink = function() {\n              ngModel = $element.find('input').controller('ngModel');\n\n              ngModel.$formatters.push(function(value) {\n                return (value && value.name) || value;\n              });\n\n              ngModel.$parsers.push(function(value) {\n                var match = value;\n                for (var i = 0; i < that.items.length; i++) {\n                  if (that.items[i].name === value) {\n                    match = that.items[i];\n                    break;\n                  }\n                }\n\n                return match;\n              });\n            };\n\n            that.selectItem = function(item) {\n              ngModel.$setViewValue(item);\n              ngModel.$processModelValue();\n              that.onSelect({item: item});\n            };\n          }\n        });\n     </file>\n     <file name=\"autocomplete.html\">\n       <div>\n         <input type=\"search\" ng-model=\"$ctrl.searchTerm\" />\n         <ul>\n           <li ng-repeat=\"item in $ctrl.items | filter:$ctrl.searchTerm\">\n             <button ng-click=\"$ctrl.selectItem(item)\">{{ item.name }}</button>\n           </li>\n         </ul>\n       </div>\n     </file>\n   * </example>\n   *\n   */\n  $processModelValue: function() {\n    var viewValue = this.$$format();\n\n    if (this.$viewValue !== viewValue) {\n      this.$$updateEmptyClasses(viewValue);\n      this.$viewValue = this.$$lastCommittedViewValue = viewValue;\n      this.$render();\n      // It is possible that model and view value have been updated during render\n      this.$$runValidators(this.$modelValue, this.$viewValue, noop);\n    }\n  },\n\n  /**\n   * This method is called internally to run the $formatters on the $modelValue\n   */\n  $$format: function() {\n    var formatters = this.$formatters,\n        idx = formatters.length;\n\n    var viewValue = this.$modelValue;\n    while (idx--) {\n      viewValue = formatters[idx](viewValue);\n    }\n\n    return viewValue;\n  },\n\n  /**\n   * This method is called internally when the bound scope value changes.\n   */\n  $$setModelValue: function(modelValue) {\n    this.$modelValue = this.$$rawModelValue = modelValue;\n    this.$$parserValid = undefined;\n    this.$processModelValue();\n  },\n\n  $$setUpdateOnEvents: function() {\n    if (this.$$updateEvents) {\n      this.$$element.off(this.$$updateEvents, this.$$updateEventHandler);\n    }\n\n    this.$$updateEvents = this.$options.getOption('updateOn');\n    if (this.$$updateEvents) {\n      this.$$element.on(this.$$updateEvents, this.$$updateEventHandler);\n    }\n  },\n\n  $$updateEventHandler: function(ev) {\n    this.$$debounceViewValueCommit(ev && ev.type);\n  }\n};\n\nfunction setupModelWatcher(ctrl) {\n  // model -> value\n  // Note: we cannot use a normal scope.$watch as we want to detect the following:\n  // 1. scope value is 'a'\n  // 2. user enters 'b'\n  // 3. ng-change kicks in and reverts scope value to 'a'\n  //    -> scope value did not change since the last digest as\n  //       ng-change executes in apply phase\n  // 4. view should be changed back to 'a'\n  ctrl.$$scope.$watch(function ngModelWatch(scope) {\n    var modelValue = ctrl.$$ngModelGet(scope);\n\n    // if scope model value and ngModel value are out of sync\n    // This cannot be moved to the action function, because it would not catch the\n    // case where the model is changed in the ngChange function or the model setter\n    if (modelValue !== ctrl.$modelValue &&\n      // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator\n      // eslint-disable-next-line no-self-compare\n      (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue)\n    ) {\n      ctrl.$$setModelValue(modelValue);\n    }\n\n    return modelValue;\n  });\n}\n\n/**\n * @ngdoc method\n * @name ngModel.NgModelController#$setValidity\n *\n * @description\n * Change the validity state, and notify the form.\n *\n * This method can be called within $parsers/$formatters or a custom validation implementation.\n * However, in most cases it should be sufficient to use the `ngModel.$validators` and\n * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically.\n *\n * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned\n *        to either `$error[validationErrorKey]` or `$pending[validationErrorKey]`\n *        (for unfulfilled `$asyncValidators`), so that it is available for data-binding.\n *        The `validationErrorKey` should be in camelCase and will get converted into dash-case\n *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`\n *        classes and can be bound to as `{{ someForm.someControl.$error.myError }}`.\n * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined),\n *                          or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n *                          Skipped is used by AngularJS when validators do not run because of parse errors and\n *                          when `$asyncValidators` do not run because any of the `$validators` failed.\n */\naddSetValidityMethod({\n  clazz: NgModelController,\n  set: function(object, property) {\n    object[property] = true;\n  },\n  unset: function(object, property) {\n    delete object[property];\n  }\n});\n\n\n/**\n * @ngdoc directive\n * @name ngModel\n * @restrict A\n * @priority 1\n * @param {expression} ngModel assignable {@link guide/expression Expression} to bind to.\n *\n * @description\n * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a\n * property on the scope using {@link ngModel.NgModelController NgModelController},\n * which is created and exposed by this directive.\n *\n * `ngModel` is responsible for:\n *\n * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`\n *   require.\n * - Providing validation behavior (i.e. required, number, email, url).\n * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors).\n * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`,\n *   `ng-untouched`, `ng-empty`, `ng-not-empty`) including animations.\n * - Registering the control with its parent {@link ng.directive:form form}.\n *\n * Note: `ngModel` will try to bind to the property given by evaluating the expression on the\n * current scope. If the property doesn't already exist on this scope, it will be created\n * implicitly and added to the scope.\n *\n * For best practices on using `ngModel`, see:\n *\n *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)\n *\n * For basic examples, how to use `ngModel`, see:\n *\n *  - {@link ng.directive:input input}\n *    - {@link input[text] text}\n *    - {@link input[checkbox] checkbox}\n *    - {@link input[radio] radio}\n *    - {@link input[number] number}\n *    - {@link input[email] email}\n *    - {@link input[url] url}\n *    - {@link input[date] date}\n *    - {@link input[datetime-local] datetime-local}\n *    - {@link input[time] time}\n *    - {@link input[month] month}\n *    - {@link input[week] week}\n *  - {@link ng.directive:select select}\n *  - {@link ng.directive:textarea textarea}\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding inputs to models that are objects (e.g. `Date`) or collections (e.g. arrays). If only properties of the\n * object or collection change, `ngModel` will not be notified and so the input will not be  re-rendered.\n *\n * The model must be assigned an entirely new object or collection before a re-rendering will occur.\n *\n * Some directives have options that will cause them to use a custom `$watchCollection` on the model expression\n * - for example, `ngOptions` will do so when a `track by` clause is included in the comprehension expression or\n * if the select is given the `multiple` attribute.\n *\n * The `$watchCollection()` method only does a shallow comparison, meaning that changing properties deeper than the\n * first level of the object (or only changing the properties of an item in the collection if it's an array) will still\n * not trigger a re-rendering of the model.\n *\n * ## CSS classes\n * The following CSS classes are added and removed on the associated input/select/textarea element\n * depending on the validity of the model.\n *\n *  - `ng-valid`: the model is valid\n *  - `ng-invalid`: the model is invalid\n *  - `ng-valid-[key]`: for each valid key added by `$setValidity`\n *  - `ng-invalid-[key]`: for each invalid key added by `$setValidity`\n *  - `ng-pristine`: the control hasn't been interacted with yet\n *  - `ng-dirty`: the control has been interacted with\n *  - `ng-touched`: the control has been blurred\n *  - `ng-untouched`: the control hasn't been blurred\n *  - `ng-pending`: any `$asyncValidators` are unfulfilled\n *  - `ng-empty`: the view does not contain a value or the value is deemed \"empty\", as defined\n *     by the {@link ngModel.NgModelController#$isEmpty} method\n *  - `ng-not-empty`: the view contains a non-empty value\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n * @animations\n * Animations within models are triggered when any of the associated CSS classes are added and removed\n * on the input element which is attached to the model. These classes include: `.ng-pristine`, `.ng-dirty`,\n * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.\n * The animations that are triggered within ngModel are similar to how they work in ngClass and\n * animations can be hooked into using CSS transitions, keyframes as well as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style an input element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-input {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-input.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n * ### Basic Usage\n * <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"inputExample\" name=\"ng-model\">\n     <file name=\"index.html\">\n       <script>\n        angular.module('inputExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.val = '1';\n          }]);\n       </script>\n       <style>\n         .my-input {\n           transition:all linear 0.5s;\n           background: transparent;\n         }\n         .my-input.ng-invalid {\n           color:white;\n           background: red;\n         }\n       </style>\n       <p id=\"inputDescription\">\n        Update input to see transitions when valid/invalid.\n        Integer is a valid value.\n       </p>\n       <form name=\"testForm\" ng-controller=\"ExampleController\">\n         <input ng-model=\"val\" ng-pattern=\"/^\\d+$/\" name=\"anim\" class=\"my-input\"\n                aria-describedby=\"inputDescription\" />\n       </form>\n     </file>\n * </example>\n *\n * @example\n * ### Binding to a getter/setter\n *\n * Sometimes it's helpful to bind `ngModel` to a getter/setter function.  A getter/setter is a\n * function that returns a representation of the model when called with zero arguments, and sets\n * the internal state of a model when called with an argument. It's sometimes useful to use this\n * for models that have an internal representation that's different from what the model exposes\n * to the view.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's best to keep getters fast because AngularJS is likely to call them more\n * frequently than other parts of your code.\n * </div>\n *\n * You use this behavior by adding `ng-model-options=\"{ getterSetter: true }\"` to an element that\n * has `ng-model` attached to it. You can also add `ng-model-options=\"{ getterSetter: true }\"` to\n * a `<form>`, which will enable this behavior for all `<input>`s within it. See\n * {@link ng.directive:ngModelOptions `ngModelOptions`} for more.\n *\n * The following example shows how to use `ngModel` with a getter/setter:\n *\n * @example\n * <example name=\"ngModel-getter-setter\" module=\"getterSetterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <form name=\"userForm\">\n           <label>Name:\n             <input type=\"text\" name=\"userName\"\n                    ng-model=\"user.name\"\n                    ng-model-options=\"{ getterSetter: true }\" />\n           </label>\n         </form>\n         <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n       </div>\n     </file>\n     <file name=\"app.js\">\n       angular.module('getterSetterExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var _name = 'Brian';\n           $scope.user = {\n             name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n             }\n           };\n         }]);\n     </file>\n * </example>\n */\nvar ngModelDirective = ['$rootScope', function($rootScope) {\n  return {\n    restrict: 'A',\n    require: ['ngModel', '^?form', '^?ngModelOptions'],\n    controller: NgModelController,\n    // Prelink needs to run before any input directive\n    // so that we can set the NgModelOptions in NgModelController\n    // before anyone else uses it.\n    priority: 1,\n    compile: function ngModelCompile(element) {\n      // Setup initial state of the control\n      element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS);\n\n      return {\n        pre: function ngModelPreLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0],\n              formCtrl = ctrls[1] || modelCtrl.$$parentForm,\n              optionsCtrl = ctrls[2];\n\n          if (optionsCtrl) {\n            modelCtrl.$options = optionsCtrl.$options;\n          }\n\n          modelCtrl.$$initGetterSetters();\n\n          // notify others, especially parent forms\n          formCtrl.$addControl(modelCtrl);\n\n          attr.$observe('name', function(newValue) {\n            if (modelCtrl.$name !== newValue) {\n              modelCtrl.$$parentForm.$$renameControl(modelCtrl, newValue);\n            }\n          });\n\n          scope.$on('$destroy', function() {\n            modelCtrl.$$parentForm.$removeControl(modelCtrl);\n          });\n        },\n        post: function ngModelPostLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0];\n          modelCtrl.$$setUpdateOnEvents();\n\n          function setTouched() {\n            modelCtrl.$setTouched();\n          }\n\n          element.on('blur', function() {\n            if (modelCtrl.$touched) return;\n\n            if ($rootScope.$$phase) {\n              scope.$evalAsync(setTouched);\n            } else {\n              scope.$apply(setTouched);\n            }\n          });\n        }\n      };\n    }\n  };\n}];\n\n/* exported defaultModelOptions */\nvar defaultModelOptions;\nvar DEFAULT_REGEXP = /(\\s+|^)default(\\s+|$)/;\n\n/**\n * @ngdoc type\n * @name ModelOptions\n * @description\n * A container for the options set by the {@link ngModelOptions} directive\n */\nfunction ModelOptions(options) {\n  this.$$options = options;\n}\n\nModelOptions.prototype = {\n\n  /**\n   * @ngdoc method\n   * @name ModelOptions#getOption\n   * @param {string} name the name of the option to retrieve\n   * @returns {*} the value of the option\n   * @description\n   * Returns the value of the given option\n   */\n  getOption: function(name) {\n    return this.$$options[name];\n  },\n\n  /**\n   * @ngdoc method\n   * @name ModelOptions#createChild\n   * @param {Object} options a hash of options for the new child that will override the parent's options\n   * @return {ModelOptions} a new `ModelOptions` object initialized with the given options.\n   */\n  createChild: function(options) {\n    var inheritAll = false;\n\n    // make a shallow copy\n    options = extend({}, options);\n\n    // Inherit options from the parent if specified by the value `\"$inherit\"`\n    forEach(options, /* @this */ function(option, key) {\n      if (option === '$inherit') {\n        if (key === '*') {\n          inheritAll = true;\n        } else {\n          options[key] = this.$$options[key];\n          // `updateOn` is special so we must also inherit the `updateOnDefault` option\n          if (key === 'updateOn') {\n            options.updateOnDefault = this.$$options.updateOnDefault;\n          }\n        }\n      } else {\n        if (key === 'updateOn') {\n          // If the `updateOn` property contains the `default` event then we have to remove\n          // it from the event list and set the `updateOnDefault` flag.\n          options.updateOnDefault = false;\n          options[key] = trim(option.replace(DEFAULT_REGEXP, function() {\n            options.updateOnDefault = true;\n            return ' ';\n          }));\n        }\n      }\n    }, this);\n\n    if (inheritAll) {\n      // We have a property of the form: `\"*\": \"$inherit\"`\n      delete options['*'];\n      defaults(options, this.$$options);\n    }\n\n    // Finally add in any missing defaults\n    defaults(options, defaultModelOptions.$$options);\n\n    return new ModelOptions(options);\n  }\n};\n\n\ndefaultModelOptions = new ModelOptions({\n  updateOn: '',\n  updateOnDefault: true,\n  debounce: 0,\n  getterSetter: false,\n  allowInvalid: false,\n  timezone: null\n});\n\n\n/**\n * @ngdoc directive\n * @name ngModelOptions\n * @restrict A\n * @priority 10\n *\n * @description\n * This directive allows you to modify the behaviour of {@link ngModel} directives within your\n * application. You can specify an `ngModelOptions` directive on any element. All {@link ngModel}\n * directives will use the options of their nearest `ngModelOptions` ancestor.\n *\n * The `ngModelOptions` settings are found by evaluating the value of the attribute directive as\n * an AngularJS expression. This expression should evaluate to an object, whose properties contain\n * the settings. For example: `<div ng-model-options=\"{ debounce: 100 }\"`.\n *\n * ## Inheriting Options\n *\n * You can specify that an `ngModelOptions` setting should be inherited from a parent `ngModelOptions`\n * directive by giving it the value of `\"$inherit\"`.\n * Then it will inherit that setting from the first `ngModelOptions` directive found by traversing up the\n * DOM tree. If there is no ancestor element containing an `ngModelOptions` directive then default settings\n * will be used.\n *\n * For example given the following fragment of HTML\n *\n *\n * ```html\n * <div ng-model-options=\"{ allowInvalid: true, debounce: 200 }\">\n *   <form ng-model-options=\"{ updateOn: 'blur', allowInvalid: '$inherit' }\">\n *     <input ng-model-options=\"{ updateOn: 'default', allowInvalid: '$inherit' }\" />\n *   </form>\n * </div>\n * ```\n *\n * the `input` element will have the following settings\n *\n * ```js\n * { allowInvalid: true, updateOn: 'default', debounce: 0 }\n * ```\n *\n * Notice that the `debounce` setting was not inherited and used the default value instead.\n *\n * You can specify that all undefined settings are automatically inherited from an ancestor by\n * including a property with key of `\"*\"` and value of `\"$inherit\"`.\n *\n * For example given the following fragment of HTML\n *\n *\n * ```html\n * <div ng-model-options=\"{ allowInvalid: true, debounce: 200 }\">\n *   <form ng-model-options=\"{ updateOn: 'blur', \"*\": '$inherit' }\">\n *     <input ng-model-options=\"{ updateOn: 'default', \"*\": '$inherit' }\" />\n *   </form>\n * </div>\n * ```\n *\n * the `input` element will have the following settings\n *\n * ```js\n * { allowInvalid: true, updateOn: 'default', debounce: 200 }\n * ```\n *\n * Notice that the `debounce` setting now inherits the value from the outer `<div>` element.\n *\n * If you are creating a reusable component then you should be careful when using `\"*\": \"$inherit\"`\n * since you may inadvertently inherit a setting in the future that changes the behavior of your component.\n *\n *\n * ## Triggering and debouncing model updates\n *\n * The `updateOn` and `debounce` properties allow you to specify a custom list of events that will\n * trigger a model update and/or a debouncing delay so that the actual update only takes place when\n * a timer expires; this timer will be reset after another change takes place.\n *\n * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might\n * be different from the value in the actual model. This means that if you update the model you\n * should also invoke {@link ngModel.NgModelController#$rollbackViewValue} on the relevant input field in\n * order to make sure it is synchronized with the model and that any debounced action is canceled.\n *\n * The easiest way to reference the control's {@link ngModel.NgModelController#$rollbackViewValue}\n * method is by making sure the input is placed inside a form that has a `name` attribute. This is\n * important because `form` controllers are published to the related scope under the name in their\n * `name` attribute.\n *\n * Any pending changes will take place immediately when an enclosing form is submitted via the\n * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * ### Overriding immediate updates\n *\n * The following example shows how to override immediate updates. Changes on the inputs within the\n * form will update the model only when the control loses focus (blur event). If `escape` key is\n * pressed while the input field is focused, the value is reset to the value in the current model.\n *\n * <example name=\"ngModelOptions-directive-blur\" module=\"optionsExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         <label>\n *           Name:\n *           <input type=\"text\" name=\"userName\"\n *                  ng-model=\"user.name\"\n *                  ng-model-options=\"{ updateOn: 'blur' }\"\n *                  ng-keyup=\"cancel($event)\" />\n *         </label><br />\n *         <label>\n *           Other data:\n *           <input type=\"text\" ng-model=\"user.data\" />\n *         </label><br />\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('optionsExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.user = { name: 'say', data: '' };\n *\n *         $scope.cancel = function(e) {\n *           if (e.keyCode === 27) {\n *             $scope.userForm.userName.$rollbackViewValue();\n *           }\n *         };\n *       }]);\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var model = element(by.binding('user.name'));\n *     var input = element(by.model('user.name'));\n *     var other = element(by.model('user.data'));\n *\n *     it('should allow custom events', function() {\n *       input.sendKeys(' hello');\n *       input.click();\n *       expect(model.getText()).toEqual('say');\n *       other.click();\n *       expect(model.getText()).toEqual('say hello');\n *     });\n *\n *     it('should $rollbackViewValue when model changes', function() {\n *       input.sendKeys(' hello');\n *       expect(input.getAttribute('value')).toEqual('say hello');\n *       input.sendKeys(protractor.Key.ESCAPE);\n *       expect(input.getAttribute('value')).toEqual('say');\n *       other.click();\n *       expect(model.getText()).toEqual('say');\n *     });\n *   </file>\n * </example>\n *\n * ### Debouncing updates\n *\n * The next example shows how to debounce model changes. Model will be updated only 1 sec after last change.\n * If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty.\n *\n * <example name=\"ngModelOptions-directive-debounce\" module=\"optionsExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         Name:\n *         <input type=\"text\" name=\"userName\"\n *                ng-model=\"user.name\"\n *                ng-model-options=\"{ debounce: 1000 }\" />\n *         <button ng-click=\"userForm.userName.$rollbackViewValue(); user.name=''\">Clear</button><br />\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('optionsExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.user = { name: 'say' };\n *       }]);\n *   </file>\n * </example>\n *\n *\n * ## Model updates and validation\n *\n * The default behaviour in `ngModel` is that the model value is set to `undefined` when the\n * validation determines that the value is invalid. By setting the `allowInvalid` property to true,\n * the model will still be updated even if the value is invalid.\n *\n *\n * ## Connecting to the scope\n *\n * By setting the `getterSetter` property to true you are telling ngModel that the `ngModel` expression\n * on the scope refers to a \"getter/setter\" function rather than the value itself.\n *\n * The following example shows how to bind to getter/setters:\n *\n * <example name=\"ngModelOptions-directive-getter-setter\" module=\"getterSetterExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         <label>\n *           Name:\n *           <input type=\"text\" name=\"userName\"\n *                  ng-model=\"user.name\"\n *                  ng-model-options=\"{ getterSetter: true }\" />\n *         </label>\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('getterSetterExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         var _name = 'Brian';\n *         $scope.user = {\n *           name: function(newName) {\n *             return angular.isDefined(newName) ? (_name = newName) : _name;\n *           }\n *         };\n *       }]);\n *   </file>\n * </example>\n *\n *\n * ## Specifying timezones\n *\n * You can specify the timezone that date/time input directives expect by providing its name in the\n * `timezone` property.\n *\n *\n * ## Programmatically changing options\n *\n * The `ngModelOptions` expression is only evaluated once when the directive is linked; it is not\n * watched for changes. However, it is possible to override the options on a single\n * {@link ngModel.NgModelController} instance with\n * {@link ngModel.NgModelController#$overrideModelOptions `NgModelController#$overrideModelOptions()`}.\n *\n *\n * @param {Object} ngModelOptions options to apply to {@link ngModel} directives on this element and\n *   and its descendents. Valid keys are:\n *   - `updateOn`: string specifying which event should the input be bound to. You can set several\n *     events using an space delimited list. There is a special event called `default` that\n *     matches the default events belonging to the control. These are the events that are bound to\n *     the control, and when fired, update the `$viewValue` via `$setViewValue`.\n *\n *     `ngModelOptions` considers every event that is not listed in `updateOn` a \"default\" event,\n *     since different control types use different default events.\n *\n *     See also the section {@link ngModelOptions#triggering-and-debouncing-model-updates\n *     Triggering and debouncing model updates}.\n *\n *   - `debounce`: integer value which contains the debounce model update value in milliseconds. A\n *     value of 0 triggers an immediate update. If an object is supplied instead, you can specify a\n *     custom value for each event. For example:\n *     ```\n *     ng-model-options=\"{\n *       updateOn: 'default blur click',\n *       debounce: { 'default': 500, 'blur': 0 }\n *     }\"\n *     ```\n *\n *     \"default\" also applies to all events that are listed in `updateOn` but are not\n *     listed in `debounce`, i.e. \"click\" would also be debounced by 500 milliseconds.\n *\n *   - `allowInvalid`: boolean value which indicates that the model can be set with values that did\n *     not validate correctly instead of the default behavior of setting the model to undefined.\n *   - `getterSetter`: boolean value which determines whether or not to treat functions bound to\n *     `ngModel` as getters/setters.\n *   - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for\n *     `<input type=\"date\" />`, `<input type=\"time\" />`, ... . It understands UTC/GMT and the\n *     continental US time zone abbreviations, but for general use, use a time zone offset, for\n *     example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *     If not specified, the timezone of the browser will be used.\n *     Note that changing the timezone will have no effect on the current date, and is only applied after\n *     the next input / model change.\n *\n */\nvar ngModelOptionsDirective = function() {\n  NgModelOptionsController.$inject = ['$attrs', '$scope'];\n  function NgModelOptionsController($attrs, $scope) {\n    this.$$attrs = $attrs;\n    this.$$scope = $scope;\n  }\n  NgModelOptionsController.prototype = {\n    $onInit: function() {\n      var parentOptions = this.parentCtrl ? this.parentCtrl.$options : defaultModelOptions;\n      var modelOptionsDefinition = this.$$scope.$eval(this.$$attrs.ngModelOptions);\n\n      this.$options = parentOptions.createChild(modelOptionsDefinition);\n    }\n  };\n\n  return {\n    restrict: 'A',\n    // ngModelOptions needs to run before ngModel and input directives\n    priority: 10,\n    require: {parentCtrl: '?^^ngModelOptions'},\n    bindToController: true,\n    controller: NgModelOptionsController\n  };\n};\n\n\n// shallow copy over values from `src` that are not already specified on `dst`\nfunction defaults(dst, src) {\n  forEach(src, function(value, key) {\n    if (!isDefined(dst[key])) {\n      dst[key] = value;\n    }\n  });\n}\n\n/**\n * @ngdoc directive\n * @name ngNonBindable\n * @restrict AC\n * @priority 1000\n * @element ANY\n *\n * @description\n * The `ngNonBindable` directive tells AngularJS not to compile or bind the contents of the current\n * DOM element, including directives on the element itself that have a lower priority than\n * `ngNonBindable`. This is useful if the element contains what appears to be AngularJS directives\n * and bindings but which should be ignored by AngularJS. This could be the case if you have a site\n * that displays snippets of code, for instance.\n *\n * @example\n * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,\n * but the one wrapped in `ngNonBindable` is left alone.\n *\n  <example name=\"ng-non-bindable\">\n    <file name=\"index.html\">\n      <div>Normal: {{1 + 2}}</div>\n      <div ng-non-bindable>Ignored: {{1 + 2}}</div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n     it('should check ng-non-bindable', function() {\n       expect(element(by.binding('1 + 2')).getText()).toContain('3');\n       expect(element.all(by.css('div')).last().getText()).toMatch(/1 \\+ 2/);\n     });\n    </file>\n  </example>\n */\nvar ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });\n\n/* exported ngOptionsDirective */\n\n/* global jqLiteRemove */\n\nvar ngOptionsMinErr = minErr('ngOptions');\n\n/**\n * @ngdoc directive\n * @name ngOptions\n * @restrict A\n *\n * @description\n *\n * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`\n * elements for the `<select>` element using the array or object obtained by evaluating the\n * `ngOptions` comprehension expression.\n *\n * In many cases, {@link ng.directive:ngRepeat ngRepeat} can be used on `<option>` elements instead of\n * `ngOptions` to achieve a similar result. However, `ngOptions` provides some benefits:\n * - more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression\n * - reduced memory consumption by not creating a new scope for each repeated instance\n * - increased render speed by creating the options in a documentFragment instead of individually\n *\n * When an item in the `<select>` menu is selected, the array element or object property\n * represented by the selected option will be bound to the model identified by the `ngModel`\n * directive.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding the select to a model that is an object or a collection.\n *\n * One issue occurs if you want to preselect an option. For example, if you set\n * the model to an object that is equal to an object in your collection, `ngOptions` won't be able to set the selection,\n * because the objects are not identical. So by default, you should always reference the item in your collection\n * for preselections, e.g.: `$scope.selected = $scope.collection[3]`.\n *\n * Another solution is to use a `track by` clause, because then `ngOptions` will track the identity\n * of the item not by reference, but by the result of the `track by` expression. For example, if your\n * collection items have an id property, you would `track by item.id`.\n *\n * A different issue with objects or collections is that ngModel won't detect if an object property or\n * a collection item changes. For that reason, `ngOptions` additionally watches the model using\n * `$watchCollection`, when the expression contains a `track by` clause or the the select has the `multiple` attribute.\n * This allows ngOptions to trigger a re-rendering of the options even if the actual object/collection\n * has not changed identity, but only a property on the object or an item in the collection changes.\n *\n * Note that `$watchCollection` does a shallow comparison of the properties of the object (or the items in the collection\n * if the model is an array). This means that changing a property deeper than the first level inside the\n * object/collection will not trigger a re-rendering.\n *\n * ## `select` **`as`**\n *\n * Using `select` **`as`** will bind the result of the `select` expression to the model, but\n * the value of the `<select>` and `<option>` html elements will be either the index (for array data sources)\n * or property name (for object data sources) of the value within the collection. If a **`track by`** expression\n * is used, the result of that expression will be set as the value of the `option` and `select` elements.\n *\n *\n * ### `select` **`as`** and **`track by`**\n *\n * <div class=\"alert alert-warning\">\n * Be careful when using `select` **`as`** and **`track by`** in the same expression.\n * </div>\n *\n * Given this array of items on the $scope:\n *\n * ```js\n * $scope.items = [{\n *   id: 1,\n *   label: 'aLabel',\n *   subItem: { name: 'aSubItem' }\n * }, {\n *   id: 2,\n *   label: 'bLabel',\n *   subItem: { name: 'bSubItem' }\n * }];\n * ```\n *\n * This will work:\n *\n * ```html\n * <select ng-options=\"item as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0];\n * ```\n *\n * but this will not work:\n *\n * ```html\n * <select ng-options=\"item.subItem as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0].subItem;\n * ```\n *\n * In both examples, the **`track by`** expression is applied successfully to each `item` in the\n * `items` array. Because the selected option has been set programmatically in the controller, the\n * **`track by`** expression is also applied to the `ngModel` value. In the first example, the\n * `ngModel` value is `items[0]` and the **`track by`** expression evaluates to `items[0].id` with\n * no issue. In the second example, the `ngModel` value is `items[0].subItem` and the **`track by`**\n * expression evaluates to `items[0].subItem.id` (which is undefined). As a result, the model value\n * is not matched against any `<option>` and the `<select>` appears as having no selected value.\n *\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {comprehension_expression} ngOptions in one of the following forms:\n *\n *   * for array data sources:\n *     * `label` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`for`** `value` **`in`** `array` | orderBy:`orderexpr` **`track by`** `trackexpr`\n *        (for including a filter with `track by`)\n *   * for object data sources:\n *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `label` **`disable when`** `disable` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`group by`** `group`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`disable when`** `disable`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *\n * Where:\n *\n *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.\n *   * `value`: local variable which will refer to each item in the `array` or each property value\n *      of `object` during iteration.\n *   * `key`: local variable which will refer to a property name in `object` during iteration.\n *   * `label`: The result of this expression will be the label for `<option>` element. The\n *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).\n *   * `select`: The result of this expression will be bound to the model of the parent `<select>`\n *      element. If not specified, `select` expression will default to `value`.\n *   * `group`: The result of this expression will be used to group options using the `<optgroup>`\n *      DOM element.\n *   * `disable`: The result of this expression will be used to disable the rendered `<option>`\n *      element. Return `true` to disable.\n *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be\n *      used to identify the objects in the array. The `trackexpr` will most likely refer to the\n *     `value` variable (e.g. `value.propertyName`). With this the selection is preserved\n *      even when the options are recreated (e.g. reloaded from the server).\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required The control is considered valid only if value is entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {string=} ngAttrSize sets the size of the select element dynamically. Uses the\n * {@link guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes ngAttr} directive.\n *\n * @example\n    <example module=\"selectExample\" name=\"select\">\n      <file name=\"index.html\">\n        <script>\n        angular.module('selectExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.colors = [\n              {name:'black', shade:'dark'},\n              {name:'white', shade:'light', notAnOption: true},\n              {name:'red', shade:'dark'},\n              {name:'blue', shade:'dark', notAnOption: true},\n              {name:'yellow', shade:'light', notAnOption: false}\n            ];\n            $scope.myColor = $scope.colors[2]; // red\n          }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <ul>\n            <li ng-repeat=\"color in colors\">\n              <label>Name: <input ng-model=\"color.name\"></label>\n              <label><input type=\"checkbox\" ng-model=\"color.notAnOption\"> Disabled?</label>\n              <button ng-click=\"colors.splice($index, 1)\" aria-label=\"Remove\">X</button>\n            </li>\n            <li>\n              <button ng-click=\"colors.push({})\">add</button>\n            </li>\n          </ul>\n          <hr/>\n          <label>Color (null not allowed):\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\"></select>\n          </label><br/>\n          <label>Color (null allowed):\n          <span  class=\"nullable\">\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\">\n              <option value=\"\">-- choose color --</option>\n            </select>\n          </span></label><br/>\n\n          <label>Color grouped by shade:\n            <select ng-model=\"myColor\" ng-options=\"color.name group by color.shade for color in colors\">\n            </select>\n          </label><br/>\n\n          <label>Color grouped by shade, with some disabled:\n            <select ng-model=\"myColor\"\n                  ng-options=\"color.name group by color.shade disable when color.notAnOption for color in colors\">\n            </select>\n          </label><br/>\n\n\n\n          Select <button ng-click=\"myColor = { name:'not in list', shade: 'other' }\">bogus</button>.\n          <br/>\n          <hr/>\n          Currently selected: {{ {selected_color:myColor} }}\n          <div style=\"border:solid 1px black; height:20px\"\n               ng-style=\"{'background-color':myColor.name}\">\n          </div>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n         it('should check ng-options', function() {\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');\n           element.all(by.model('myColor')).first().click();\n           element.all(by.css('select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');\n           element(by.css('.nullable select[ng-model=\"myColor\"]')).click();\n           element.all(by.css('.nullable select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');\n         });\n      </file>\n    </example>\n */\n\n/* eslint-disable max-len */\n//                     //00001111111111000000000002222222222000000000000000000000333333333300000000000000000000000004444444444400000000000005555555555555000000000666666666666600000007777777777777000000000000000888888888800000000000000000009999999999\nvar NG_OPTIONS_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+group\\s+by\\s+([\\s\\S]+?))?(?:\\s+disable\\s+when\\s+([\\s\\S]+?))?\\s+for\\s+(?:([$\\w][$\\w]*)|(?:\\(\\s*([$\\w][$\\w]*)\\s*,\\s*([$\\w][$\\w]*)\\s*\\)))\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?$/;\n                        // 1: value expression (valueFn)\n                        // 2: label expression (displayFn)\n                        // 3: group by expression (groupByFn)\n                        // 4: disable when expression (disableWhenFn)\n                        // 5: array item variable name\n                        // 6: object item key variable name\n                        // 7: object item value variable name\n                        // 8: collection expression\n                        // 9: track by expression\n/* eslint-enable */\n\n\nvar ngOptionsDirective = ['$compile', '$document', '$parse', function($compile, $document, $parse) {\n\n  function parseOptionsExpression(optionsExp, selectElement, scope) {\n\n    var match = optionsExp.match(NG_OPTIONS_REGEXP);\n    if (!(match)) {\n      throw ngOptionsMinErr('iexp',\n        'Expected expression in form of ' +\n        '\\'_select_ (as _label_)? for (_key_,)?_value_ in _collection_\\'' +\n        ' but got \\'{0}\\'. Element: {1}',\n        optionsExp, startingTag(selectElement));\n    }\n\n    // Extract the parts from the ngOptions expression\n\n    // The variable name for the value of the item in the collection\n    var valueName = match[5] || match[7];\n    // The variable name for the key of the item in the collection\n    var keyName = match[6];\n\n    // An expression that generates the viewValue for an option if there is a label expression\n    var selectAs = / as /.test(match[0]) && match[1];\n    // An expression that is used to track the id of each object in the options collection\n    var trackBy = match[9];\n    // An expression that generates the viewValue for an option if there is no label expression\n    var valueFn = $parse(match[2] ? match[1] : valueName);\n    var selectAsFn = selectAs && $parse(selectAs);\n    var viewValueFn = selectAsFn || valueFn;\n    var trackByFn = trackBy && $parse(trackBy);\n\n    // Get the value by which we are going to track the option\n    // if we have a trackFn then use that (passing scope and locals)\n    // otherwise just hash the given viewValue\n    var getTrackByValueFn = trackBy ?\n                              function(value, locals) { return trackByFn(scope, locals); } :\n                              function getHashOfValue(value) { return hashKey(value); };\n    var getTrackByValue = function(value, key) {\n      return getTrackByValueFn(value, getLocals(value, key));\n    };\n\n    var displayFn = $parse(match[2] || match[1]);\n    var groupByFn = $parse(match[3] || '');\n    var disableWhenFn = $parse(match[4] || '');\n    var valuesFn = $parse(match[8]);\n\n    var locals = {};\n    var getLocals = keyName ? function(value, key) {\n      locals[keyName] = key;\n      locals[valueName] = value;\n      return locals;\n    } : function(value) {\n      locals[valueName] = value;\n      return locals;\n    };\n\n\n    function Option(selectValue, viewValue, label, group, disabled) {\n      this.selectValue = selectValue;\n      this.viewValue = viewValue;\n      this.label = label;\n      this.group = group;\n      this.disabled = disabled;\n    }\n\n    function getOptionValuesKeys(optionValues) {\n      var optionValuesKeys;\n\n      if (!keyName && isArrayLike(optionValues)) {\n        optionValuesKeys = optionValues;\n      } else {\n        // if object, extract keys, in enumeration order, unsorted\n        optionValuesKeys = [];\n        for (var itemKey in optionValues) {\n          if (optionValues.hasOwnProperty(itemKey) && itemKey.charAt(0) !== '$') {\n            optionValuesKeys.push(itemKey);\n          }\n        }\n      }\n      return optionValuesKeys;\n    }\n\n    return {\n      trackBy: trackBy,\n      getTrackByValue: getTrackByValue,\n      getWatchables: $parse(valuesFn, function(optionValues) {\n        // Create a collection of things that we would like to watch (watchedArray)\n        // so that they can all be watched using a single $watchCollection\n        // that only runs the handler once if anything changes\n        var watchedArray = [];\n        optionValues = optionValues || [];\n\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n\n          var locals = getLocals(value, key);\n          var selectValue = getTrackByValueFn(value, locals);\n          watchedArray.push(selectValue);\n\n          // Only need to watch the displayFn if there is a specific label expression\n          if (match[2] || match[1]) {\n            var label = displayFn(scope, locals);\n            watchedArray.push(label);\n          }\n\n          // Only need to watch the disableWhenFn if there is a specific disable expression\n          if (match[4]) {\n            var disableWhen = disableWhenFn(scope, locals);\n            watchedArray.push(disableWhen);\n          }\n        }\n        return watchedArray;\n      }),\n\n      getOptions: function() {\n\n        var optionItems = [];\n        var selectValueMap = {};\n\n        // The option values were already computed in the `getWatchables` fn,\n        // which must have been called to trigger `getOptions`\n        var optionValues = valuesFn(scope) || [];\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n          var locals = getLocals(value, key);\n          var viewValue = viewValueFn(scope, locals);\n          var selectValue = getTrackByValueFn(viewValue, locals);\n          var label = displayFn(scope, locals);\n          var group = groupByFn(scope, locals);\n          var disabled = disableWhenFn(scope, locals);\n          var optionItem = new Option(selectValue, viewValue, label, group, disabled);\n\n          optionItems.push(optionItem);\n          selectValueMap[selectValue] = optionItem;\n        }\n\n        return {\n          items: optionItems,\n          selectValueMap: selectValueMap,\n          getOptionFromViewValue: function(value) {\n            return selectValueMap[getTrackByValue(value)];\n          },\n          getViewValueFromOption: function(option) {\n            // If the viewValue could be an object that may be mutated by the application,\n            // we need to make a copy and not return the reference to the value on the option.\n            return trackBy ? copy(option.viewValue) : option.viewValue;\n          }\n        };\n      }\n    };\n  }\n\n\n  // Support: IE 9 only\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  var optionTemplate = window.document.createElement('option'),\n      optGroupTemplate = window.document.createElement('optgroup');\n\n    function ngOptionsPostLink(scope, selectElement, attr, ctrls) {\n\n      var selectCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1];\n      var multiple = attr.multiple;\n\n      // The emptyOption allows the application developer to provide their own custom \"empty\"\n      // option when the viewValue does not match any of the option values.\n      for (var i = 0, children = selectElement.children(), ii = children.length; i < ii; i++) {\n        if (children[i].value === '') {\n          selectCtrl.hasEmptyOption = true;\n          selectCtrl.emptyOption = children.eq(i);\n          break;\n        }\n      }\n\n      // The empty option will be compiled and rendered before we first generate the options\n      selectElement.empty();\n\n      var providedEmptyOption = !!selectCtrl.emptyOption;\n\n      var unknownOption = jqLite(optionTemplate.cloneNode(false));\n      unknownOption.val('?');\n\n      var options;\n      var ngOptions = parseOptionsExpression(attr.ngOptions, selectElement, scope);\n      // This stores the newly created options before they are appended to the select.\n      // Since the contents are removed from the fragment when it is appended,\n      // we only need to create it once.\n      var listFragment = $document[0].createDocumentFragment();\n\n      // Overwrite the implementation. ngOptions doesn't use hashes\n      selectCtrl.generateUnknownOptionValue = function(val) {\n        return '?';\n      };\n\n      // Update the controller methods for multiple selectable options\n      if (!multiple) {\n\n        selectCtrl.writeValue = function writeNgOptionsValue(value) {\n          // The options might not be defined yet when ngModel tries to render\n          if (!options) return;\n\n          var selectedOption = selectElement[0].options[selectElement[0].selectedIndex];\n          var option = options.getOptionFromViewValue(value);\n\n          // Make sure to remove the selected attribute from the previously selected option\n          // Otherwise, screen readers might get confused\n          if (selectedOption) selectedOption.removeAttribute('selected');\n\n          if (option) {\n            // Don't update the option when it is already selected.\n            // For example, the browser will select the first option by default. In that case,\n            // most properties are set automatically - except the `selected` attribute, which we\n            // set always\n\n            if (selectElement[0].value !== option.selectValue) {\n              selectCtrl.removeUnknownOption();\n\n              selectElement[0].value = option.selectValue;\n              option.element.selected = true;\n            }\n\n            option.element.setAttribute('selected', 'selected');\n          } else {\n            selectCtrl.selectUnknownOrEmptyOption(value);\n          }\n        };\n\n        selectCtrl.readValue = function readNgOptionsValue() {\n\n          var selectedOption = options.selectValueMap[selectElement.val()];\n\n          if (selectedOption && !selectedOption.disabled) {\n            selectCtrl.unselectEmptyOption();\n            selectCtrl.removeUnknownOption();\n            return options.getViewValueFromOption(selectedOption);\n          }\n          return null;\n        };\n\n        // If we are using `track by` then we must watch the tracked value on the model\n        // since ngModel only watches for object identity change\n        // FIXME: When a user selects an option, this watch will fire needlessly\n        if (ngOptions.trackBy) {\n          scope.$watch(\n            function() { return ngOptions.getTrackByValue(ngModelCtrl.$viewValue); },\n            function() { ngModelCtrl.$render(); }\n          );\n        }\n\n      } else {\n\n        selectCtrl.writeValue = function writeNgOptionsMultiple(values) {\n          // The options might not be defined yet when ngModel tries to render\n          if (!options) return;\n\n          // Only set `<option>.selected` if necessary, in order to prevent some browsers from\n          // scrolling to `<option>` elements that are outside the `<select>` element's viewport.\n          var selectedOptions = values && values.map(getAndUpdateSelectedOption) || [];\n\n          options.items.forEach(function(option) {\n            if (option.element.selected && !includes(selectedOptions, option)) {\n              option.element.selected = false;\n            }\n          });\n        };\n\n\n        selectCtrl.readValue = function readNgOptionsMultiple() {\n          var selectedValues = selectElement.val() || [],\n              selections = [];\n\n          forEach(selectedValues, function(value) {\n            var option = options.selectValueMap[value];\n            if (option && !option.disabled) selections.push(options.getViewValueFromOption(option));\n          });\n\n          return selections;\n        };\n\n        // If we are using `track by` then we must watch these tracked values on the model\n        // since ngModel only watches for object identity change\n        if (ngOptions.trackBy) {\n\n          scope.$watchCollection(function() {\n            if (isArray(ngModelCtrl.$viewValue)) {\n              return ngModelCtrl.$viewValue.map(function(value) {\n                return ngOptions.getTrackByValue(value);\n              });\n            }\n          }, function() {\n            ngModelCtrl.$render();\n          });\n\n        }\n      }\n\n      if (providedEmptyOption) {\n\n        // compile the element since there might be bindings in it\n        $compile(selectCtrl.emptyOption)(scope);\n\n        selectElement.prepend(selectCtrl.emptyOption);\n\n        if (selectCtrl.emptyOption[0].nodeType === NODE_TYPE_COMMENT) {\n          // This means the empty option has currently no actual DOM node, probably because\n          // it has been modified by a transclusion directive.\n          selectCtrl.hasEmptyOption = false;\n\n          // Redefine the registerOption function, which will catch\n          // options that are added by ngIf etc. (rendering of the node is async because of\n          // lazy transclusion)\n          selectCtrl.registerOption = function(optionScope, optionEl) {\n            if (optionEl.val() === '') {\n              selectCtrl.hasEmptyOption = true;\n              selectCtrl.emptyOption = optionEl;\n              selectCtrl.emptyOption.removeClass('ng-scope');\n              // This ensures the new empty option is selected if previously no option was selected\n              ngModelCtrl.$render();\n\n              optionEl.on('$destroy', function() {\n                var needsRerender = selectCtrl.$isEmptyOptionSelected();\n\n                selectCtrl.hasEmptyOption = false;\n                selectCtrl.emptyOption = undefined;\n\n                if (needsRerender) ngModelCtrl.$render();\n              });\n            }\n          };\n\n        } else {\n          // remove the class, which is added automatically because we recompile the element and it\n          // becomes the compilation root\n          selectCtrl.emptyOption.removeClass('ng-scope');\n        }\n\n      }\n\n      // We will re-render the option elements if the option values or labels change\n      scope.$watchCollection(ngOptions.getWatchables, updateOptions);\n\n      // ------------------------------------------------------------------ //\n\n      function addOptionElement(option, parent) {\n        var optionElement = optionTemplate.cloneNode(false);\n        parent.appendChild(optionElement);\n        updateOptionElement(option, optionElement);\n      }\n\n      function getAndUpdateSelectedOption(viewValue) {\n        var option = options.getOptionFromViewValue(viewValue);\n        var element = option && option.element;\n\n        if (element && !element.selected) element.selected = true;\n\n        return option;\n      }\n\n      function updateOptionElement(option, element) {\n        option.element = element;\n        element.disabled = option.disabled;\n        // Support: IE 11 only, Edge 12-13 only\n        // NOTE: The label must be set before the value, otherwise IE 11 & Edge create unresponsive\n        // selects in certain circumstances when multiple selects are next to each other and display\n        // the option list in listbox style, i.e. the select is [multiple], or specifies a [size].\n        // See https://github.com/angular/angular.js/issues/11314 for more info.\n        // This is unfortunately untestable with unit / e2e tests\n        if (option.label !== element.label) {\n          element.label = option.label;\n          element.textContent = option.label;\n        }\n        element.value = option.selectValue;\n      }\n\n      function updateOptions() {\n        var previousValue = options && selectCtrl.readValue();\n\n        // We must remove all current options, but cannot simply set innerHTML = null\n        // since the providedEmptyOption might have an ngIf on it that inserts comments which we\n        // must preserve.\n        // Instead, iterate over the current option elements and remove them or their optgroup\n        // parents\n        if (options) {\n\n          for (var i = options.items.length - 1; i >= 0; i--) {\n            var option = options.items[i];\n            if (isDefined(option.group)) {\n              jqLiteRemove(option.element.parentNode);\n            } else {\n              jqLiteRemove(option.element);\n            }\n          }\n        }\n\n        options = ngOptions.getOptions();\n\n        var groupElementMap = {};\n\n        options.items.forEach(function addOption(option) {\n          var groupElement;\n\n          if (isDefined(option.group)) {\n\n            // This option is to live in a group\n            // See if we have already created this group\n            groupElement = groupElementMap[option.group];\n\n            if (!groupElement) {\n\n              groupElement = optGroupTemplate.cloneNode(false);\n              listFragment.appendChild(groupElement);\n\n              // Update the label on the group element\n              // \"null\" is special cased because of Safari\n              groupElement.label = option.group === null ? 'null' : option.group;\n\n              // Store it for use later\n              groupElementMap[option.group] = groupElement;\n            }\n\n            addOptionElement(option, groupElement);\n\n          } else {\n\n            // This option is not in a group\n            addOptionElement(option, listFragment);\n          }\n        });\n\n        selectElement[0].appendChild(listFragment);\n\n        ngModelCtrl.$render();\n\n        // Check to see if the value has changed due to the update to the options\n        if (!ngModelCtrl.$isEmpty(previousValue)) {\n          var nextValue = selectCtrl.readValue();\n          var isNotPrimitive = ngOptions.trackBy || multiple;\n          if (isNotPrimitive ? !equals(previousValue, nextValue) : previousValue !== nextValue) {\n            ngModelCtrl.$setViewValue(nextValue);\n            ngModelCtrl.$render();\n          }\n        }\n      }\n  }\n\n  return {\n    restrict: 'A',\n    terminal: true,\n    require: ['select', 'ngModel'],\n    link: {\n      pre: function ngOptionsPreLink(scope, selectElement, attr, ctrls) {\n        // Deactivate the SelectController.register method to prevent\n        // option directives from accidentally registering themselves\n        // (and unwanted $destroy handlers etc.)\n        ctrls[0].registerOption = noop;\n      },\n      post: ngOptionsPostLink\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngPluralize\n * @restrict EA\n *\n * @description\n * `ngPluralize` is a directive that displays messages according to en-US localization rules.\n * These rules are bundled with angular.js, but can be overridden\n * (see {@link guide/i18n AngularJS i18n} dev guide). You configure ngPluralize directive\n * by specifying the mappings between\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * and the strings to be displayed.\n *\n * ## Plural categories and explicit number rules\n * There are two\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * in AngularJS's default en-US locale: \"one\" and \"other\".\n *\n * While a plural category may match many numbers (for example, in en-US locale, \"other\" can match\n * any number that is not 1), an explicit number rule can only match one number. For example, the\n * explicit number rule for \"3\" matches the number 3. There are examples of plural categories\n * and explicit number rules throughout the rest of this documentation.\n *\n * ## Configuring ngPluralize\n * You configure ngPluralize by providing 2 attributes: `count` and `when`.\n * You can also provide an optional attribute, `offset`.\n *\n * The value of the `count` attribute can be either a string or an {@link guide/expression\n * AngularJS expression}; these are evaluated on the current scope for its bound value.\n *\n * The `when` attribute specifies the mappings between plural categories and the actual\n * string to be displayed. The value of the attribute should be a JSON object.\n *\n * The following example shows how to configure ngPluralize:\n *\n * ```html\n * <ng-pluralize count=\"personCount\"\n                 when=\"{'0': 'Nobody is viewing.',\n *                      'one': '1 person is viewing.',\n *                      'other': '{} people are viewing.'}\">\n * </ng-pluralize>\n *```\n *\n * In the example, `\"0: Nobody is viewing.\"` is an explicit number rule. If you did not\n * specify this rule, 0 would be matched to the \"other\" category and \"0 people are viewing\"\n * would be shown instead of \"Nobody is viewing\". You can specify an explicit number rule for\n * other numbers, for example 12, so that instead of showing \"12 people are viewing\", you can\n * show \"a dozen people are viewing\".\n *\n * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted\n * into pluralized strings. In the previous example, AngularJS will replace `{}` with\n * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder\n * for <span ng-non-bindable>{{numberExpression}}</span>.\n *\n * If no rule is defined for a category, then an empty string is displayed and a warning is generated.\n * Note that some locales define more categories than `one` and `other`. For example, fr-fr defines `few` and `many`.\n *\n * ## Configuring ngPluralize with offset\n * The `offset` attribute allows further customization of pluralized text, which can result in\n * a better user experience. For example, instead of the message \"4 people are viewing this document\",\n * you might display \"John, Kate and 2 others are viewing this document\".\n * The offset attribute allows you to offset a number by any desired value.\n * Let's take a look at an example:\n *\n * ```html\n * <ng-pluralize count=\"personCount\" offset=2\n *               when=\"{'0': 'Nobody is viewing.',\n *                      '1': '{{person1}} is viewing.',\n *                      '2': '{{person1}} and {{person2}} are viewing.',\n *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',\n *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n * </ng-pluralize>\n * ```\n *\n * Notice that we are still using two plural categories(one, other), but we added\n * three explicit number rules 0, 1 and 2.\n * When one person, perhaps John, views the document, \"John is viewing\" will be shown.\n * When three people view the document, no explicit number rule is found, so\n * an offset of 2 is taken off 3, and AngularJS uses 1 to decide the plural category.\n * In this case, plural category 'one' is matched and \"John, Mary and one other person are viewing\"\n * is shown.\n *\n * Note that when you specify offsets, you must provide explicit number rules for\n * numbers from 0 up to and including the offset. If you use an offset of 3, for example,\n * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for\n * plural categories \"one\" and \"other\".\n *\n * @param {string|expression} count The variable to be bound to.\n * @param {string} when The mapping between plural category to its corresponding strings.\n * @param {number=} offset Offset to deduct from the total number.\n *\n * @example\n    <example module=\"pluralizeExample\" name=\"ng-pluralize\">\n      <file name=\"index.html\">\n        <script>\n          angular.module('pluralizeExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.person1 = 'Igor';\n              $scope.person2 = 'Misko';\n              $scope.personCount = 1;\n            }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <label>Person 1:<input type=\"text\" ng-model=\"person1\" value=\"Igor\" /></label><br/>\n          <label>Person 2:<input type=\"text\" ng-model=\"person2\" value=\"Misko\" /></label><br/>\n          <label>Number of People:<input type=\"text\" ng-model=\"personCount\" value=\"1\" /></label><br/>\n\n          <!--- Example with simple pluralization rules for en locale --->\n          Without Offset:\n          <ng-pluralize count=\"personCount\"\n                        when=\"{'0': 'Nobody is viewing.',\n                               'one': '1 person is viewing.',\n                               'other': '{} people are viewing.'}\">\n          </ng-pluralize><br>\n\n          <!--- Example with offset --->\n          With Offset(2):\n          <ng-pluralize count=\"personCount\" offset=2\n                        when=\"{'0': 'Nobody is viewing.',\n                               '1': '{{person1}} is viewing.',\n                               '2': '{{person1}} and {{person2}} are viewing.',\n                               'one': '{{person1}}, {{person2}} and one other person are viewing.',\n                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n          </ng-pluralize>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should show correct pluralized string', function() {\n          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var countInput = element(by.model('personCount'));\n\n          expect(withoutOffset.getText()).toEqual('1 person is viewing.');\n          expect(withOffset.getText()).toEqual('Igor is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('0');\n\n          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');\n          expect(withOffset.getText()).toEqual('Nobody is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('2');\n\n          expect(withoutOffset.getText()).toEqual('2 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('3');\n\n          expect(withoutOffset.getText()).toEqual('3 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('4');\n\n          expect(withoutOffset.getText()).toEqual('4 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');\n        });\n        it('should show data-bound names', function() {\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var personCount = element(by.model('personCount'));\n          var person1 = element(by.model('person1'));\n          var person2 = element(by.model('person2'));\n          personCount.clear();\n          personCount.sendKeys('4');\n          person1.clear();\n          person1.sendKeys('Di');\n          person2.clear();\n          person2.sendKeys('Vojta');\n          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');\n        });\n      </file>\n    </example>\n */\nvar ngPluralizeDirective = ['$locale', '$interpolate', '$log', function($locale, $interpolate, $log) {\n  var BRACE = /{}/g,\n      IS_WHEN = /^when(Minus)?(.+)$/;\n\n  return {\n    link: function(scope, element, attr) {\n      var numberExp = attr.count,\n          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs\n          offset = attr.offset || 0,\n          whens = scope.$eval(whenExp) || {},\n          whensExpFns = {},\n          startSymbol = $interpolate.startSymbol(),\n          endSymbol = $interpolate.endSymbol(),\n          braceReplacement = startSymbol + numberExp + '-' + offset + endSymbol,\n          watchRemover = angular.noop,\n          lastCount;\n\n      forEach(attr, function(expression, attributeName) {\n        var tmpMatch = IS_WHEN.exec(attributeName);\n        if (tmpMatch) {\n          var whenKey = (tmpMatch[1] ? '-' : '') + lowercase(tmpMatch[2]);\n          whens[whenKey] = element.attr(attr.$attr[attributeName]);\n        }\n      });\n      forEach(whens, function(expression, key) {\n        whensExpFns[key] = $interpolate(expression.replace(BRACE, braceReplacement));\n\n      });\n\n      scope.$watch(numberExp, function ngPluralizeWatchAction(newVal) {\n        var count = parseFloat(newVal);\n        var countIsNaN = isNumberNaN(count);\n\n        if (!countIsNaN && !(count in whens)) {\n          // If an explicit number rule such as 1, 2, 3... is defined, just use it.\n          // Otherwise, check it against pluralization rules in $locale service.\n          count = $locale.pluralCat(count - offset);\n        }\n\n        // If both `count` and `lastCount` are NaN, we don't need to re-register a watch.\n        // In JS `NaN !== NaN`, so we have to explicitly check.\n        if ((count !== lastCount) && !(countIsNaN && isNumberNaN(lastCount))) {\n          watchRemover();\n          var whenExpFn = whensExpFns[count];\n          if (isUndefined(whenExpFn)) {\n            if (newVal != null) {\n              $log.debug('ngPluralize: no rule defined for \\'' + count + '\\' in ' + whenExp);\n            }\n            watchRemover = noop;\n            updateElementText();\n          } else {\n            watchRemover = scope.$watch(whenExpFn, updateElementText);\n          }\n          lastCount = count;\n        }\n      });\n\n      function updateElementText(newText) {\n        element.text(newText || '');\n      }\n    }\n  };\n}];\n\n/* exported ngRepeatDirective */\n\n/**\n * @ngdoc directive\n * @name ngRepeat\n * @multiElement\n * @restrict A\n *\n * @description\n * The `ngRepeat` directive instantiates a template once per item from a collection. Each template\n * instance gets its own scope, where the given loop variable is set to the current collection item,\n * and `$index` is set to the item index or key.\n *\n * Special properties are exposed on the local scope of each template instance, including:\n *\n * | Variable  | Type            | Details                                                                     |\n * |-----------|-----------------|-----------------------------------------------------------------------------|\n * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |\n * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |\n * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |\n * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |\n * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |\n * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |\n *\n * <div class=\"alert alert-info\">\n *   Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.\n *   This may be useful when, for instance, nesting ngRepeats.\n * </div>\n *\n *\n * ## Iterating over object properties\n *\n * It is possible to get `ngRepeat` to iterate over the properties of an object using the following\n * syntax:\n *\n * ```js\n * <div ng-repeat=\"(key, value) in myObj\"> ... </div>\n * ```\n *\n * However, there are a few limitations compared to array iteration:\n *\n * - The JavaScript specification does not define the order of keys\n *   returned for an object, so AngularJS relies on the order returned by the browser\n *   when running `for key in myObj`. Browsers generally follow the strategy of providing\n *   keys in the order in which they were defined, although there are exceptions when keys are deleted\n *   and reinstated. See the\n *   [MDN page on `delete` for more info](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete#Cross-browser_notes).\n *\n * - `ngRepeat` will silently *ignore* object keys starting with `$`, because\n *   it's a prefix used by AngularJS for public (`$`) and private (`$$`) properties.\n *\n * - The built-in filters {@link ng.orderBy orderBy} and {@link ng.filter filter} do not work with\n *   objects, and will throw an error if used with one.\n *\n * If you are hitting any of these limitations, the recommended workaround is to convert your object into an array\n * that is sorted into the order that you prefer before providing it to `ngRepeat`. You could\n * do this with a filter such as [toArrayFilter](http://ngmodules.org/modules/angular-toArrayFilter)\n * or implement a `$watch` on the object yourself.\n *\n *\n * ## Tracking and Duplicates\n *\n * `ngRepeat` uses {@link $rootScope.Scope#$watchCollection $watchCollection} to detect changes in\n * the collection. When a change happens, `ngRepeat` then makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * To minimize creation of DOM elements, `ngRepeat` uses a function\n * to \"keep track\" of all items in the collection and their corresponding DOM elements.\n * For example, if an item is added to the collection, `ngRepeat` will know that all other items\n * already have DOM elements, and will not re-render them.\n *\n * All different types of tracking functions, their syntax, and and their support for duplicate\n * items in collections can be found in the\n * {@link ngRepeat#ngRepeat-arguments ngRepeat expression description}.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** If you are working with objects that have a unique identifier property, you\n * should track by this identifier instead of the object instance,\n * e.g. `item in items track by item.id`.\n * Should you reload your data later, `ngRepeat` will not have to rebuild the DOM elements for items\n * it has already rendered, even if the JavaScript objects in the collection have been substituted\n * for new ones. For large collections, this significantly improves rendering performance.\n * </div>\n *\n * ### Effects of DOM Element re-use\n *\n * When DOM elements are re-used, ngRepeat updates the scope for the element, which will\n * automatically update any active bindings on the template. However, other\n * functionality will not be updated, because the element is not re-created:\n *\n * - Directives are not re-compiled\n * - {@link guide/expression#one-time-binding one-time expressions} on the repeated template are not\n * updated if they have stabilized.\n *\n * The above affects all kinds of element re-use due to tracking, but may be especially visible\n * when tracking by `$index` due to the way ngRepeat re-uses elements.\n *\n * The following example shows the effects of different actions with tracking:\n\n  <example module=\"ngRepeat\" name=\"ngRepeat-tracking\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"script.js\">\n      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {\n        var friends = [\n          {name:'John', age:25},\n          {name:'Mary', age:40},\n          {name:'Peter', age:85}\n        ];\n\n        $scope.removeFirst = function() {\n          $scope.friends.shift();\n        };\n\n        $scope.updateAge = function() {\n          $scope.friends.forEach(function(el) {\n            el.age = el.age + 5;\n          });\n        };\n\n        $scope.copy = function() {\n          $scope.friends = angular.copy($scope.friends);\n        };\n\n        $scope.reset = function() {\n          $scope.friends = angular.copy(friends);\n        };\n\n        $scope.reset();\n      });\n    </file>\n    <file name=\"index.html\">\n      <div ng-controller=\"repeatController\">\n        <ol>\n          <li>When you click \"Update Age\", only the first list updates the age, because all others have\n          a one-time binding on the age property. If you then click \"Copy\", the current friend list\n          is copied, and now the second list updates the age, because the identity of the collection items\n          has changed and the list must be re-rendered. The 3rd and 4th list stay the same, because all the\n          items are already known according to their tracking functions.\n          </li>\n          <li>When you click \"Remove First\", the 4th list has the wrong age on both remaining items. This is\n          due to tracking by $index: when the first collection item is removed, ngRepeat reuses the first\n          DOM element for the new first collection item, and so on. Since the age property is one-time\n          bound, the value remains from the collection item which was previously at this index.\n          </li>\n        </ol>\n\n        <button ng-click=\"removeFirst()\">Remove First</button>\n        <button ng-click=\"updateAge()\">Update Age</button>\n        <button ng-click=\"copy()\">Copy</button>\n        <br><button ng-click=\"reset()\">Reset List</button>\n        <br>\n        <code>track by $id(friend)</code> (default):\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends\">\n            {{friend.name}} is {{friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by $id(friend)</code> (default), with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends\">\n            {{friend.name}} is {{::friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by friend.name</code>, with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends track by friend.name\">\n            {{friend.name}}  is {{::friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by $index</code>, with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends track by $index\">\n            {{friend.name}} is {{::friend.age}} years old.\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:30px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:30px;\n      }\n    </file>\n  </example>\n\n *\n * ## Special repeat start and end points\n * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending\n * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.\n * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)\n * up to and including the ending HTML tag where **ng-repeat-end** is placed.\n *\n * The example below makes use of this feature:\n * ```html\n *   <header ng-repeat-start=\"item in items\">\n *     Header {{ item }}\n *   </header>\n *   <div class=\"body\">\n *     Body {{ item }}\n *   </div>\n *   <footer ng-repeat-end>\n *     Footer {{ item }}\n *   </footer>\n * ```\n *\n * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:\n * ```html\n *   <header>\n *     Header A\n *   </header>\n *   <div class=\"body\">\n *     Body A\n *   </div>\n *   <footer>\n *     Footer A\n *   </footer>\n *   <header>\n *     Header B\n *   </header>\n *   <div class=\"body\">\n *     Body B\n *   </div>\n *   <footer>\n *     Footer B\n *   </footer>\n * ```\n *\n * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such\n * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter} | when a new item is added to the list or when an item is revealed after a filter |\n * | {@link ng.$animate#leave leave} | when an item is removed from the list or when an item is filtered out |\n * | {@link ng.$animate#move move } | when an adjacent item is filtered out causing a reorder or when the item contents are reordered |\n *\n * See the example below for defining CSS animations with ngRepeat.\n *\n * @element ANY\n * @scope\n * @priority 1000\n * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These\n *   formats are currently supported:\n *\n *   * `variable in expression` – where variable is the user defined loop variable and `expression`\n *     is a scope expression giving the collection to enumerate.\n *\n *     For example: `album in artist.albums`.\n *\n *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,\n *     and `expression` is the scope expression giving the collection to enumerate.\n *\n *     For example: `(name, age) in {'adam':10, 'amalie':12}`.\n *\n *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking expression\n *     which can be used to associate the objects in the collection with the DOM elements. If no tracking expression\n *     is specified, ng-repeat associates elements by identity. It is an error to have\n *     more than one tracking expression value resolve to the same key. (This would mean that two distinct objects are\n *     mapped to the same DOM element, which is not possible.)\n *\n *     *Default tracking: $id()*: `item in items` is equivalent to `item in items track by $id(item)`.\n *     This implies that the DOM elements will be associated by item identity in the collection.\n *\n *     The built-in `$id()` function can be used to assign a unique\n *     `$$hashKey` property to each item in the collection. This property is then used as a key to associated DOM elements\n *     with the corresponding item in the collection by identity. Moving the same object would move\n *     the DOM element in the same way in the DOM.\n *     Note that the default id function does not support duplicate primitive values (`number`, `string`),\n *     but supports duplictae non-primitive values (`object`) that are *equal* in shape.\n *\n *     *Custom Expression*: It is possible to use any AngularJS expression to compute the tracking\n *     id, for example with a function, or using a property on the collection items.\n *     `item in items track by item.id` is a typical pattern when the items have a unique identifier,\n *     e.g. database id. In this case the object identity does not matter. Two objects are considered\n *     equivalent as long as their `id` property is same.\n *     Tracking by unique identifier is the most performant way and should be used whenever possible.\n *\n *     *$index*: This special property tracks the collection items by their index, and\n *     re-uses the DOM elements that match that index, e.g. `item in items track by $index`. This can\n *     be used for a performance improvement if no unique identfier is available and the identity of\n *     the collection items cannot be easily computed. It also allows duplicates.\n *\n *     <div class=\"alert alert-warning\">\n *       <strong>Note:</strong> Re-using DOM elements can have unforeseen effects. Read the\n *       {@link ngRepeat#tracking-and-duplicates section on tracking and duplicates} for\n *       more info.\n *     </div>\n *\n *     <div class=\"alert alert-warning\">\n *       <strong>Note:</strong> the `track by` expression must come last - after any filters, and the alias expression:\n *       `item in items | filter:searchText as results  track by item.id`\n *     </div>\n *\n *   * `variable in expression as alias_expression` – You can also provide an optional alias expression which will then store the\n *     intermediate results of the repeater after the filters have been applied. Typically this is used to render a special message\n *     when a filter is active on the repeater, but the filtered result set is empty.\n *\n *     For example: `item in items | filter:x as results` will store the fragment of the repeated items as `results`, but only after\n *     the items have been processed through the filter.\n *\n *     Please note that `as [variable name] is not an operator but rather a part of ngRepeat\n *     micro-syntax so it can be used only after all filters (and not as operator, inside an expression).\n *\n *     For example: `item in items | filter : x | orderBy : order | limitTo : limit as results track by item.id` .\n *\n * @example\n * This example uses `ngRepeat` to display a list of people. A filter is used to restrict the displayed\n * results by name or by age. New (entering) and removed (leaving) items are animated.\n  <example module=\"ngRepeat\" name=\"ngRepeat\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"repeatController\">\n        I have {{friends.length}} friends. They are:\n        <input type=\"search\" ng-model=\"q\" placeholder=\"filter friends...\" aria-label=\"filter friends\" />\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends | filter:q as results track by friend.name\">\n            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.\n          </li>\n          <li class=\"animate-repeat\" ng-if=\"results.length === 0\">\n            <strong>No results found...</strong>\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {\n        $scope.friends = [\n          {name:'John', age:25, gender:'boy'},\n          {name:'Jessie', age:30, gender:'girl'},\n          {name:'Johanna', age:28, gender:'girl'},\n          {name:'Joy', age:15, gender:'girl'},\n          {name:'Mary', age:28, gender:'girl'},\n          {name:'Peter', age:95, gender:'boy'},\n          {name:'Sebastian', age:50, gender:'boy'},\n          {name:'Erika', age:27, gender:'girl'},\n          {name:'Patrick', age:40, gender:'boy'},\n          {name:'Samantha', age:60, gender:'girl'}\n        ];\n      });\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:30px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:30px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var friends = element.all(by.repeater('friend in friends'));\n\n      it('should render initial data set', function() {\n        expect(friends.count()).toBe(10);\n        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');\n        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');\n        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');\n        expect(element(by.binding('friends.length')).getText())\n            .toMatch(\"I have 10 friends. They are:\");\n      });\n\n       it('should update repeater when filter predicate changes', function() {\n         expect(friends.count()).toBe(10);\n\n         element(by.model('q')).sendKeys('ma');\n\n         expect(friends.count()).toBe(2);\n         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');\n         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');\n       });\n      </file>\n    </example>\n */\nvar ngRepeatDirective = ['$parse', '$animate', '$compile', function($parse, $animate, $compile) {\n  var NG_REMOVED = '$$NG_REMOVED';\n  var ngRepeatMinErr = minErr('ngRepeat');\n\n  var updateScope = function(scope, index, valueIdentifier, value, keyIdentifier, key, arrayLength) {\n    // TODO(perf): generate setters to shave off ~40ms or 1-1.5%\n    scope[valueIdentifier] = value;\n    if (keyIdentifier) scope[keyIdentifier] = key;\n    scope.$index = index;\n    scope.$first = (index === 0);\n    scope.$last = (index === (arrayLength - 1));\n    scope.$middle = !(scope.$first || scope.$last);\n    // eslint-disable-next-line no-bitwise\n    scope.$odd = !(scope.$even = (index & 1) === 0);\n  };\n\n  var getBlockStart = function(block) {\n    return block.clone[0];\n  };\n\n  var getBlockEnd = function(block) {\n    return block.clone[block.clone.length - 1];\n  };\n\n\n  return {\n    restrict: 'A',\n    multiElement: true,\n    transclude: 'element',\n    priority: 1000,\n    terminal: true,\n    $$tlb: true,\n    compile: function ngRepeatCompile($element, $attr) {\n      var expression = $attr.ngRepeat;\n      var ngRepeatEndComment = $compile.$$createComment('end ngRepeat', expression);\n\n      var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+track\\s+by\\s+([\\s\\S]+?))?\\s*$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iexp', 'Expected expression in form of \\'_item_ in _collection_[ track by _id_]\\' but got \\'{0}\\'.',\n            expression);\n      }\n\n      var lhs = match[1];\n      var rhs = match[2];\n      var aliasAs = match[3];\n      var trackByExp = match[4];\n\n      match = lhs.match(/^(?:(\\s*[$\\w]+)|\\(\\s*([$\\w]+)\\s*,\\s*([$\\w]+)\\s*\\))$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iidexp', '\\'_item_\\' in \\'_item_ in _collection_\\' should be an identifier or \\'(_key_, _value_)\\' expression, but got \\'{0}\\'.',\n            lhs);\n      }\n      var valueIdentifier = match[3] || match[1];\n      var keyIdentifier = match[2];\n\n      if (aliasAs && (!/^[$a-zA-Z_][$a-zA-Z0-9_]*$/.test(aliasAs) ||\n          /^(null|undefined|this|\\$index|\\$first|\\$middle|\\$last|\\$even|\\$odd|\\$parent|\\$root|\\$id)$/.test(aliasAs))) {\n        throw ngRepeatMinErr('badident', 'alias \\'{0}\\' is invalid --- must be a valid JS identifier which is not a reserved name.',\n          aliasAs);\n      }\n\n      var trackByExpGetter, trackByIdExpFn, trackByIdArrayFn, trackByIdObjFn;\n      var hashFnLocals = {$id: hashKey};\n\n      if (trackByExp) {\n        trackByExpGetter = $parse(trackByExp);\n      } else {\n        trackByIdArrayFn = function(key, value) {\n          return hashKey(value);\n        };\n        trackByIdObjFn = function(key) {\n          return key;\n        };\n      }\n\n      return function ngRepeatLink($scope, $element, $attr, ctrl, $transclude) {\n\n        if (trackByExpGetter) {\n          trackByIdExpFn = function(key, value, index) {\n            // assign key, value, and $index to the locals so that they can be used in hash functions\n            if (keyIdentifier) hashFnLocals[keyIdentifier] = key;\n            hashFnLocals[valueIdentifier] = value;\n            hashFnLocals.$index = index;\n            return trackByExpGetter($scope, hashFnLocals);\n          };\n        }\n\n        // Store a list of elements from previous run. This is a hash where key is the item from the\n        // iterator, and the value is objects with following properties.\n        //   - scope: bound scope\n        //   - clone: previous element.\n        //   - index: position\n        //\n        // We are using no-proto object so that we don't need to guard against inherited props via\n        // hasOwnProperty.\n        var lastBlockMap = createMap();\n\n        //watch props\n        $scope.$watchCollection(rhs, function ngRepeatAction(collection) {\n          var index, length,\n              previousNode = $element[0],     // node that cloned nodes should be inserted after\n                                              // initialized to the comment node anchor\n              nextNode,\n              // Same as lastBlockMap but it has the current state. It will become the\n              // lastBlockMap on the next iteration.\n              nextBlockMap = createMap(),\n              collectionLength,\n              key, value, // key/value of iteration\n              trackById,\n              trackByIdFn,\n              collectionKeys,\n              block,       // last object information {scope, element, id}\n              nextBlockOrder,\n              elementsToRemove;\n\n          if (aliasAs) {\n            $scope[aliasAs] = collection;\n          }\n\n          if (isArrayLike(collection)) {\n            collectionKeys = collection;\n            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;\n          } else {\n            trackByIdFn = trackByIdExpFn || trackByIdObjFn;\n            // if object, extract keys, in enumeration order, unsorted\n            collectionKeys = [];\n            for (var itemKey in collection) {\n              if (hasOwnProperty.call(collection, itemKey) && itemKey.charAt(0) !== '$') {\n                collectionKeys.push(itemKey);\n              }\n            }\n          }\n\n          collectionLength = collectionKeys.length;\n          nextBlockOrder = new Array(collectionLength);\n\n          // locate existing items\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            trackById = trackByIdFn(key, value, index);\n            if (lastBlockMap[trackById]) {\n              // found previously seen block\n              block = lastBlockMap[trackById];\n              delete lastBlockMap[trackById];\n              nextBlockMap[trackById] = block;\n              nextBlockOrder[index] = block;\n            } else if (nextBlockMap[trackById]) {\n              // if collision detected. restore lastBlockMap and throw an error\n              forEach(nextBlockOrder, function(block) {\n                if (block && block.scope) lastBlockMap[block.id] = block;\n              });\n              throw ngRepeatMinErr('dupes',\n                  'Duplicates in a repeater are not allowed. Use \\'track by\\' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}',\n                  expression, trackById, value);\n            } else {\n              // new never before seen block\n              nextBlockOrder[index] = {id: trackById, scope: undefined, clone: undefined};\n              nextBlockMap[trackById] = true;\n            }\n          }\n\n          // remove leftover items\n          for (var blockKey in lastBlockMap) {\n            block = lastBlockMap[blockKey];\n            elementsToRemove = getBlockNodes(block.clone);\n            $animate.leave(elementsToRemove);\n            if (elementsToRemove[0].parentNode) {\n              // if the element was not removed yet because of pending animation, mark it as deleted\n              // so that we can ignore it later\n              for (index = 0, length = elementsToRemove.length; index < length; index++) {\n                elementsToRemove[index][NG_REMOVED] = true;\n              }\n            }\n            block.scope.$destroy();\n          }\n\n          // we are not using forEach for perf reasons (trying to avoid #call)\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            block = nextBlockOrder[index];\n\n            if (block.scope) {\n              // if we have already seen this object, then we need to reuse the\n              // associated scope/element\n\n              nextNode = previousNode;\n\n              // skip nodes that are already pending removal via leave animation\n              do {\n                nextNode = nextNode.nextSibling;\n              } while (nextNode && nextNode[NG_REMOVED]);\n\n              if (getBlockStart(block) !== nextNode) {\n                // existing item which got moved\n                $animate.move(getBlockNodes(block.clone), null, previousNode);\n              }\n              previousNode = getBlockEnd(block);\n              updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n            } else {\n              // new item which we don't know about\n              $transclude(function ngRepeatTransclude(clone, scope) {\n                block.scope = scope;\n                // http://jsperf.com/clone-vs-createcomment\n                var endNode = ngRepeatEndComment.cloneNode(false);\n                clone[clone.length++] = endNode;\n\n                $animate.enter(clone, null, previousNode);\n                previousNode = endNode;\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block.clone = clone;\n                nextBlockMap[block.id] = block;\n                updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n              });\n            }\n          }\n          lastBlockMap = nextBlockMap;\n        });\n      };\n    }\n  };\n}];\n\nvar NG_HIDE_CLASS = 'ng-hide';\nvar NG_HIDE_IN_PROGRESS_CLASS = 'ng-hide-animate';\n/**\n * @ngdoc directive\n * @name ngShow\n * @multiElement\n *\n * @description\n * The `ngShow` directive shows or hides the given HTML element based on the expression provided to\n * the `ngShow` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is visible) -->\n * <div ng-show=\"myValue\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is hidden) -->\n * <div ng-show=\"myValue\" class=\"ng-hide\"></div>\n * ```\n *\n * When the `ngShow` expression evaluates to a falsy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When truthy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override anything in CSS and the animations will work around the\n * display style.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                        |\n * |-----------------------------------------------------|---------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden. |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngShow` expression evaluates to a truthy value and just before contents are set to visible.        |\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @element ANY\n * @param {expression} ngShow If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is shown/hidden respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-simple\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element animate-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-complex\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element funky-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n *\n * @knownIssue\n *\n * ### Flickering when using ngShow to toggle between elements\n *\n * When using {@link ngShow} and / or {@link ngHide} to toggle between elements, it can\n * happen that both the element to show and the element to hide are visible for a very short time.\n *\n * This usually happens when the {@link ngAnimate ngAnimate module} is included, but no actual animations\n * are defined for {@link ngShow} / {@link ngHide}. Internet Explorer is affected more often than\n * other browsers.\n *\n * There are several way to mitigate this problem:\n *\n * - {@link guide/animations#how-to-selectively-enable-disable-and-skip-animations Disable animations on the affected elements}.\n * - Use {@link ngIf} or {@link ngSwitch} instead of {@link ngShow} / {@link ngHide}.\n * - Use the special CSS selector `ng-hide.ng-hide-animate` to set `{display: none}` or similar on the affected elements.\n * - Use `ng-class=\"{'ng-hide': expression}` instead of instead of {@link ngShow} / {@link ngHide}.\n * - Define an animation on the affected elements.\n */\nvar ngShowDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngShow, function ngShowWatchAction(value) {\n        // we're adding a temporary, animation-specific class for ng-hide since this way\n        // we can control when the element is actually displayed on screen without having\n        // to have a global/greedy CSS selector that breaks when other animations are run.\n        // Read: https://github.com/angular/angular.js/issues/9103#issuecomment-58335845\n        $animate[value ? 'removeClass' : 'addClass'](element, NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngHide\n * @multiElement\n *\n * @description\n * The `ngHide` directive shows or hides the given HTML element based on the expression provided to\n * the `ngHide` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is hidden) -->\n * <div ng-hide=\"myValue\" class=\"ng-hide\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is visible) -->\n * <div ng-hide=\"myValue\"></div>\n * ```\n *\n * When the `ngHide` expression evaluates to a truthy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When falsy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the\n * display style.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                     |\n * |-----------------------------------------------------|------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden.  |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngHide` expression evaluates to a non truthy value and just before contents are set to visible. |\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @element ANY\n * @param {expression} ngHide If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is hidden/shown respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-simple\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element animate-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-complex\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element funky-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n *\n * @knownIssue\n *\n * ### Flickering when using ngHide to toggle between elements\n *\n * When using {@link ngShow} and / or {@link ngHide} to toggle between elements, it can\n * happen that both the element to show and the element to hide are visible for a very short time.\n *\n * This usually happens when the {@link ngAnimate ngAnimate module} is included, but no actual animations\n * are defined for {@link ngShow} / {@link ngHide}. Internet Explorer is affected more often than\n * other browsers.\n *\n * There are several way to mitigate this problem:\n *\n * - {@link guide/animations#how-to-selectively-enable-disable-and-skip-animations Disable animations on the affected elements}.\n * - Use {@link ngIf} or {@link ngSwitch} instead of {@link ngShow} / {@link ngHide}.\n * - Use the special CSS selector `ng-hide.ng-hide-animate` to set `{display: none}` or similar on the affected elements.\n * - Use `ng-class=\"{'ng-hide': expression}` instead of instead of {@link ngShow} / {@link ngHide}.\n * - Define an animation on the affected elements.\n */\nvar ngHideDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngHide, function ngHideWatchAction(value) {\n        // The comment inside of the ngShowDirective explains why we add and\n        // remove a temporary class for the show/hide animation\n        $animate[value ? 'addClass' : 'removeClass'](element,NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngStyle\n * @restrict AC\n *\n * @description\n * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `style`\n * attribute, when using the `ngStyle` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @element ANY\n * @param {expression} ngStyle\n *\n * {@link guide/expression Expression} which evals to an\n * object whose keys are CSS style names and values are corresponding values for those CSS\n * keys.\n *\n * Since some CSS style names are not valid keys for an object, they must be quoted.\n * See the 'background-color' style in the example below.\n *\n * @example\n   <example name=\"ng-style\">\n     <file name=\"index.html\">\n        <input type=\"button\" value=\"set color\" ng-click=\"myStyle={color:'red'}\">\n        <input type=\"button\" value=\"set background\" ng-click=\"myStyle={'background-color':'blue'}\">\n        <input type=\"button\" value=\"clear\" ng-click=\"myStyle={}\">\n        <br/>\n        <span ng-style=\"myStyle\">Sample Text</span>\n        <pre>myStyle={{myStyle}}</pre>\n     </file>\n     <file name=\"style.css\">\n       span {\n         color: black;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var colorSpan = element(by.css('span'));\n\n       it('should check ng-style', function() {\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n         element(by.css('input[value=\\'set color\\']')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');\n         element(by.css('input[value=clear]')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n       });\n     </file>\n   </example>\n */\nvar ngStyleDirective = ngDirective(function(scope, element, attr) {\n  scope.$watch(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {\n    if (oldStyles && (newStyles !== oldStyles)) {\n      forEach(oldStyles, function(val, style) { element.css(style, '');});\n    }\n    if (newStyles) element.css(newStyles);\n  }, true);\n});\n\n/**\n * @ngdoc directive\n * @name ngSwitch\n * @restrict EA\n *\n * @description\n * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.\n * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location\n * as specified in the template.\n *\n * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it\n * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element\n * matches the value obtained from the evaluated expression. In other words, you define a container element\n * (where you place the directive), place an expression on the **`on=\"...\"` attribute**\n * (or the **`ng-switch=\"...\"` attribute**), define any inner elements inside of the directive and place\n * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on\n * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default\n * attribute is displayed.\n *\n * <div class=\"alert alert-info\">\n * Be aware that the attribute values to match against cannot be expressions. They are interpreted\n * as literal string values to match against.\n * For example, **`ng-switch-when=\"someVal\"`** will match against the string `\"someVal\"` not against the\n * value of the expression `$scope.someVal`.\n * </div>\n\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | after the ngSwitch contents change and the matched child element is placed inside the container |\n * | {@link ng.$animate#leave leave}  | after the ngSwitch contents change and just before the former contents are removed from the DOM |\n *\n * @usage\n *\n * ```\n * <ANY ng-switch=\"expression\">\n *   <ANY ng-switch-when=\"matchValue1\">...</ANY>\n *   <ANY ng-switch-when=\"matchValue2\">...</ANY>\n *   <ANY ng-switch-default>...</ANY>\n * </ANY>\n * ```\n *\n *\n * @scope\n * @priority 1200\n * @param {*} ngSwitch|on expression to match against <code>ng-switch-when</code>.\n * On child elements add:\n *\n * * `ngSwitchWhen`: the case statement to match against. If match then this\n *   case will be displayed. If the same match appears multiple times, all the\n *   elements will be displayed. It is possible to associate multiple values to\n *   the same `ngSwitchWhen` by defining the optional attribute\n *   `ngSwitchWhenSeparator`. The separator will be used to split the value of\n *   the `ngSwitchWhen` attribute into multiple tokens, and the element will show\n *   if any of the `ngSwitch` evaluates to any of these tokens.\n * * `ngSwitchDefault`: the default case when no other case match. If there\n *   are multiple default cases, all of them will be displayed when no other\n *   case match.\n *\n *\n * @example\n  <example module=\"switchExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-switch\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <select ng-model=\"selection\" ng-options=\"item for item in items\">\n        </select>\n        <code>selection={{selection}}</code>\n        <hr/>\n        <div class=\"animate-switch-container\"\n          ng-switch on=\"selection\">\n            <div class=\"animate-switch\" ng-switch-when=\"settings|options\" ng-switch-when-separator=\"|\">Settings Div</div>\n            <div class=\"animate-switch\" ng-switch-when=\"home\">Home Span</div>\n            <div class=\"animate-switch\" ng-switch-default>default</div>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('switchExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.items = ['settings', 'home', 'options', 'other'];\n          $scope.selection = $scope.items[0];\n        }]);\n    </file>\n    <file name=\"animations.css\">\n      .animate-switch-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .animate-switch {\n        padding:10px;\n      }\n\n      .animate-switch.ng-animate {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n      }\n\n      .animate-switch.ng-leave.ng-leave-active,\n      .animate-switch.ng-enter {\n        top:-50px;\n      }\n      .animate-switch.ng-leave,\n      .animate-switch.ng-enter.ng-enter-active {\n        top:0;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var switchElem = element(by.css('[ng-switch]'));\n      var select = element(by.model('selection'));\n\n      it('should start in settings', function() {\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should change to home', function() {\n        select.all(by.css('option')).get(1).click();\n        expect(switchElem.getText()).toMatch(/Home Span/);\n      });\n      it('should change to settings via \"options\"', function() {\n        select.all(by.css('option')).get(2).click();\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should select default', function() {\n        select.all(by.css('option')).get(3).click();\n        expect(switchElem.getText()).toMatch(/default/);\n      });\n    </file>\n  </example>\n */\nvar ngSwitchDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    require: 'ngSwitch',\n\n    // asks for $scope to fool the BC controller module\n    controller: ['$scope', function NgSwitchController() {\n     this.cases = {};\n    }],\n    link: function(scope, element, attr, ngSwitchController) {\n      var watchExpr = attr.ngSwitch || attr.on,\n          selectedTranscludes = [],\n          selectedElements = [],\n          previousLeaveAnimations = [],\n          selectedScopes = [];\n\n      var spliceFactory = function(array, index) {\n          return function(response) {\n            if (response !== false) array.splice(index, 1);\n          };\n      };\n\n      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {\n        var i, ii;\n\n        // Start with the last, in case the array is modified during the loop\n        while (previousLeaveAnimations.length) {\n          $animate.cancel(previousLeaveAnimations.pop());\n        }\n\n        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {\n          var selected = getBlockNodes(selectedElements[i].clone);\n          selectedScopes[i].$destroy();\n          var runner = previousLeaveAnimations[i] = $animate.leave(selected);\n          runner.done(spliceFactory(previousLeaveAnimations, i));\n        }\n\n        selectedElements.length = 0;\n        selectedScopes.length = 0;\n\n        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {\n          forEach(selectedTranscludes, function(selectedTransclude) {\n            selectedTransclude.transclude(function(caseElement, selectedScope) {\n              selectedScopes.push(selectedScope);\n              var anchor = selectedTransclude.element;\n              caseElement[caseElement.length++] = $compile.$$createComment('end ngSwitchWhen');\n              var block = { clone: caseElement };\n\n              selectedElements.push(block);\n              $animate.enter(caseElement, anchor.parent(), anchor);\n            });\n          });\n        }\n      });\n    }\n  };\n}];\n\nvar ngSwitchWhenDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attrs, ctrl, $transclude) {\n\n    var cases = attrs.ngSwitchWhen.split(attrs.ngSwitchWhenSeparator).sort().filter(\n      // Filter duplicate cases\n      function(element, index, array) { return array[index - 1] !== element; }\n    );\n\n    forEach(cases, function(whenCase) {\n      ctrl.cases['!' + whenCase] = (ctrl.cases['!' + whenCase] || []);\n      ctrl.cases['!' + whenCase].push({ transclude: $transclude, element: element });\n    });\n  }\n});\n\nvar ngSwitchDefaultDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attr, ctrl, $transclude) {\n    ctrl.cases['?'] = (ctrl.cases['?'] || []);\n    ctrl.cases['?'].push({ transclude: $transclude, element: element });\n   }\n});\n\n/**\n * @ngdoc directive\n * @name ngTransclude\n * @restrict EAC\n *\n * @description\n * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.\n *\n * You can specify that you want to insert a named transclusion slot, instead of the default slot, by providing the slot name\n * as the value of the `ng-transclude` or `ng-transclude-slot` attribute.\n *\n * If the transcluded content is not empty (i.e. contains one or more DOM nodes, including whitespace text nodes), any existing\n * content of this element will be removed before the transcluded content is inserted.\n * If the transcluded content is empty (or only whitespace), the existing content is left intact. This lets you provide fallback\n * content in the case that no transcluded content is provided.\n *\n * @element ANY\n *\n * @param {string} ngTransclude|ngTranscludeSlot the name of the slot to insert at this point. If this is not provided, is empty\n *                                               or its value is the same as the name of the attribute then the default slot is used.\n *\n * @example\n * ### Basic transclusion\n * This example demonstrates basic transclusion of content into a component directive.\n * <example name=\"simpleTranscludeExample\" module=\"transcludeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('transcludeExample', [])\n *        .directive('pane', function(){\n *           return {\n *             restrict: 'E',\n *             transclude: true,\n *             scope: { title:'@' },\n *             template: '<div style=\"border: 1px solid black;\">' +\n *                         '<div style=\"background-color: gray\">{{title}}</div>' +\n *                         '<ng-transclude></ng-transclude>' +\n *                       '</div>'\n *           };\n *       })\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.title = 'Lorem Ipsum';\n *         $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *       }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *       <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *       <pane title=\"{{title}}\"><span>{{text}}</span></pane>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.binding('title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *      });\n *   </file>\n * </example>\n *\n * @example\n * ### Transclude fallback content\n * This example shows how to use `NgTransclude` with fallback content, that\n * is displayed if no transcluded content is provided.\n *\n * <example module=\"transcludeFallbackContentExample\" name=\"ng-transclude\">\n * <file name=\"index.html\">\n * <script>\n * angular.module('transcludeFallbackContentExample', [])\n * .directive('myButton', function(){\n *             return {\n *               restrict: 'E',\n *               transclude: true,\n *               scope: true,\n *               template: '<button style=\"cursor: pointer;\">' +\n *                           '<ng-transclude>' +\n *                             '<b style=\"color: red;\">Button1</b>' +\n *                           '</ng-transclude>' +\n *                         '</button>'\n *             };\n *         });\n * </script>\n * <!-- fallback button content -->\n * <my-button id=\"fallback\"></my-button>\n * <!-- modified button content -->\n * <my-button id=\"modified\">\n *   <i style=\"color: green;\">Button2</i>\n * </my-button>\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n * it('should have different transclude element content', function() {\n *          expect(element(by.id('fallback')).getText()).toBe('Button1');\n *          expect(element(by.id('modified')).getText()).toBe('Button2');\n *        });\n * </file>\n * </example>\n *\n * @example\n * ### Multi-slot transclusion\n * This example demonstrates using multi-slot transclusion in a component directive.\n * <example name=\"multiSlotTranscludeExample\" module=\"multiSlotTranscludeExample\">\n *   <file name=\"index.html\">\n *    <style>\n *      .title, .footer {\n *        background-color: gray\n *      }\n *    </style>\n *    <div ng-controller=\"ExampleController\">\n *      <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *      <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *      <pane>\n *        <pane-title><a ng-href=\"{{link}}\">{{title}}</a></pane-title>\n *        <pane-body><p>{{text}}</p></pane-body>\n *      </pane>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('multiSlotTranscludeExample', [])\n *     .directive('pane', function() {\n *        return {\n *          restrict: 'E',\n *          transclude: {\n *            'title': '?paneTitle',\n *            'body': 'paneBody',\n *            'footer': '?paneFooter'\n *          },\n *          template: '<div style=\"border: 1px solid black;\">' +\n *                      '<div class=\"title\" ng-transclude=\"title\">Fallback Title</div>' +\n *                      '<div ng-transclude=\"body\"></div>' +\n *                      '<div class=\"footer\" ng-transclude=\"footer\">Fallback Footer</div>' +\n *                    '</div>'\n *        };\n *    })\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.title = 'Lorem Ipsum';\n *      $scope.link = 'https://google.com';\n *      $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *    }]);\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded the title and the body', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.css('.title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *        expect(element(by.css('.footer')).getText()).toEqual('Fallback Footer');\n *      });\n *   </file>\n * </example>\n */\nvar ngTranscludeMinErr = minErr('ngTransclude');\nvar ngTranscludeDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'EAC',\n    compile: function ngTranscludeCompile(tElement) {\n\n      // Remove and cache any original content to act as a fallback\n      var fallbackLinkFn = $compile(tElement.contents());\n      tElement.empty();\n\n      return function ngTranscludePostLink($scope, $element, $attrs, controller, $transclude) {\n\n        if (!$transclude) {\n          throw ngTranscludeMinErr('orphan',\n          'Illegal use of ngTransclude directive in the template! ' +\n          'No parent directive that requires a transclusion found. ' +\n          'Element: {0}',\n          startingTag($element));\n        }\n\n\n        // If the attribute is of the form: `ng-transclude=\"ng-transclude\"` then treat it like the default\n        if ($attrs.ngTransclude === $attrs.$attr.ngTransclude) {\n          $attrs.ngTransclude = '';\n        }\n        var slotName = $attrs.ngTransclude || $attrs.ngTranscludeSlot;\n\n        // If the slot is required and no transclusion content is provided then this call will throw an error\n        $transclude(ngTranscludeCloneAttachFn, null, slotName);\n\n        // If the slot is optional and no transclusion content is provided then use the fallback content\n        if (slotName && !$transclude.isSlotFilled(slotName)) {\n          useFallbackContent();\n        }\n\n        function ngTranscludeCloneAttachFn(clone, transcludedScope) {\n          if (clone.length && notWhitespace(clone)) {\n            $element.append(clone);\n          } else {\n            useFallbackContent();\n            // There is nothing linked against the transcluded scope since no content was available,\n            // so it should be safe to clean up the generated scope.\n            transcludedScope.$destroy();\n          }\n        }\n\n        function useFallbackContent() {\n          // Since this is the fallback content rather than the transcluded content,\n          // we link against the scope of this directive rather than the transcluded scope\n          fallbackLinkFn($scope, function(clone) {\n            $element.append(clone);\n          });\n        }\n\n        function notWhitespace(nodes) {\n          for (var i = 0, ii = nodes.length; i < ii; i++) {\n            var node = nodes[i];\n            if (node.nodeType !== NODE_TYPE_TEXT || node.nodeValue.trim()) {\n              return true;\n            }\n          }\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name script\n * @restrict E\n *\n * @description\n * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the\n * template can be used by {@link ng.directive:ngInclude `ngInclude`},\n * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the\n * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be\n * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.\n *\n * @param {string} type Must be set to `'text/ng-template'`.\n * @param {string} id Cache name of the template.\n *\n * @example\n  <example  name=\"script-tag\">\n    <file name=\"index.html\">\n      <script type=\"text/ng-template\" id=\"/tpl.html\">\n        Content of the template.\n      </script>\n\n      <a ng-click=\"currentTpl='/tpl.html'\" id=\"tpl-link\">Load inlined template</a>\n      <div id=\"tpl-content\" ng-include src=\"currentTpl\"></div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should load template defined inside script tag', function() {\n        element(by.css('#tpl-link')).click();\n        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);\n      });\n    </file>\n  </example>\n */\nvar scriptDirective = ['$templateCache', function($templateCache) {\n  return {\n    restrict: 'E',\n    terminal: true,\n    compile: function(element, attr) {\n      if (attr.type === 'text/ng-template') {\n        var templateUrl = attr.id,\n            text = element[0].text;\n\n        $templateCache.put(templateUrl, text);\n      }\n    }\n  };\n}];\n\n/* exported selectDirective, optionDirective */\n\nvar noopNgModelController = { $setViewValue: noop, $render: noop };\n\nfunction setOptionSelectedStatus(optionEl, value) {\n  optionEl.prop('selected', value);\n  /**\n   * When unselecting an option, setting the property to null / false should be enough\n   * However, screenreaders might react to the selected attribute instead, see\n   * https://github.com/angular/angular.js/issues/14419\n   * Note: \"selected\" is a boolean attr and will be removed when the \"value\" arg in attr() is false\n   * or null\n   */\n  optionEl.attr('selected', value);\n}\n\n/**\n * @ngdoc type\n * @name  select.SelectController\n *\n * @description\n * The controller for the {@link ng.select select} directive. The controller exposes\n * a few utility methods that can be used to augment the behavior of a regular or an\n * {@link ng.ngOptions ngOptions} select element.\n *\n * @example\n * ### Set a custom error when the unknown option is selected\n *\n * This example sets a custom error \"unknownValue\" on the ngModelController\n * when the select element's unknown option is selected, i.e. when the model is set to a value\n * that is not matched by any option.\n *\n * <example name=\"select-unknown-value-error\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"testSelect\"> Single select: </label><br>\n *     <select name=\"testSelect\" ng-model=\"selected\" unknown-value-error>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <span class=\"error\" ng-if=\"myForm.testSelect.$error.unknownValue\">\n *       Error: The current model doesn't match any option</span><br>\n *\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.selected = null;\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.selected = 'nonsense';\n *      };\n *   }])\n *   .directive('unknownValueError', function() {\n *     return {\n *       require: ['ngModel', 'select'],\n *       link: function(scope, element, attrs, ctrls) {\n *         var ngModelCtrl = ctrls[0];\n *         var selectCtrl = ctrls[1];\n *\n *         ngModelCtrl.$validators.unknownValue = function(modelValue, viewValue) {\n *           if (selectCtrl.$isUnknownOptionSelected()) {\n *             return false;\n *           }\n *\n *           return true;\n *         };\n *       }\n *\n *     };\n *   });\n * </file>\n *</example>\n *\n *\n * @example\n * ### Set the \"required\" error when the unknown option is selected.\n *\n * By default, the \"required\" error on the ngModelController is only set on a required select\n * when the empty option is selected. This example adds a custom directive that also sets the\n * error when the unknown option is selected.\n *\n * <example name=\"select-unknown-value-required\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"testSelect\"> Select: </label><br>\n *     <select name=\"testSelect\" ng-model=\"selected\" required unknown-value-required>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <span class=\"error\" ng-if=\"myForm.testSelect.$error.required\">Error: Please select a value</span><br>\n *\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.selected = null;\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.selected = 'nonsense';\n *      };\n *   }])\n *   .directive('unknownValueRequired', function() {\n *     return {\n *       priority: 1, // This directive must run after the required directive has added its validator\n *       require: ['ngModel', 'select'],\n *       link: function(scope, element, attrs, ctrls) {\n *         var ngModelCtrl = ctrls[0];\n *         var selectCtrl = ctrls[1];\n *\n *         var originalRequiredValidator = ngModelCtrl.$validators.required;\n *\n *         ngModelCtrl.$validators.required = function() {\n *           if (attrs.required && selectCtrl.$isUnknownOptionSelected()) {\n *             return false;\n *           }\n *\n *           return originalRequiredValidator.apply(this, arguments);\n *         };\n *       }\n *     };\n *   });\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n *  it('should show the error message when the unknown option is selected', function() {\n\n      var error = element(by.className('error'));\n\n      expect(error.getText()).toBe('Error: Please select a value');\n\n      element(by.cssContainingText('option', 'Option 1')).click();\n\n      expect(error.isPresent()).toBe(false);\n\n      element(by.tagName('button')).click();\n\n      expect(error.getText()).toBe('Error: Please select a value');\n    });\n * </file>\n *</example>\n *\n *\n */\nvar SelectController =\n        ['$element', '$scope', /** @this */ function($element, $scope) {\n\n  var self = this,\n      optionsMap = new NgMap();\n\n  self.selectValueMap = {}; // Keys are the hashed values, values the original values\n\n  // If the ngModel doesn't get provided then provide a dummy noop version to prevent errors\n  self.ngModelCtrl = noopNgModelController;\n  self.multiple = false;\n\n  // The \"unknown\" option is one that is prepended to the list if the viewValue\n  // does not match any of the options. When it is rendered the value of the unknown\n  // option is '? XXX ?' where XXX is the hashKey of the value that is not known.\n  //\n  // Support: IE 9 only\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  self.unknownOption = jqLite(window.document.createElement('option'));\n\n  // The empty option is an option with the value '' that the application developer can\n  // provide inside the select. It is always selectable and indicates that a \"null\" selection has\n  // been made by the user.\n  // If the select has an empty option, and the model of the select is set to \"undefined\" or \"null\",\n  // the empty option is selected.\n  // If the model is set to a different unmatched value, the unknown option is rendered and\n  // selected, i.e both are present, because a \"null\" selection and an unknown value are different.\n  self.hasEmptyOption = false;\n  self.emptyOption = undefined;\n\n  self.renderUnknownOption = function(val) {\n    var unknownVal = self.generateUnknownOptionValue(val);\n    self.unknownOption.val(unknownVal);\n    $element.prepend(self.unknownOption);\n    setOptionSelectedStatus(self.unknownOption, true);\n    $element.val(unknownVal);\n  };\n\n  self.updateUnknownOption = function(val) {\n    var unknownVal = self.generateUnknownOptionValue(val);\n    self.unknownOption.val(unknownVal);\n    setOptionSelectedStatus(self.unknownOption, true);\n    $element.val(unknownVal);\n  };\n\n  self.generateUnknownOptionValue = function(val) {\n    return '? ' + hashKey(val) + ' ?';\n  };\n\n  self.removeUnknownOption = function() {\n    if (self.unknownOption.parent()) self.unknownOption.remove();\n  };\n\n  self.selectEmptyOption = function() {\n    if (self.emptyOption) {\n      $element.val('');\n      setOptionSelectedStatus(self.emptyOption, true);\n    }\n  };\n\n  self.unselectEmptyOption = function() {\n    if (self.hasEmptyOption) {\n      setOptionSelectedStatus(self.emptyOption, false);\n    }\n  };\n\n  $scope.$on('$destroy', function() {\n    // disable unknown option so that we don't do work when the whole select is being destroyed\n    self.renderUnknownOption = noop;\n  });\n\n  // Read the value of the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.readValue = function readSingleValue() {\n    var val = $element.val();\n    // ngValue added option values are stored in the selectValueMap, normal interpolations are not\n    var realVal = val in self.selectValueMap ? self.selectValueMap[val] : val;\n\n    if (self.hasOption(realVal)) {\n      return realVal;\n    }\n\n    return null;\n  };\n\n\n  // Write the value to the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.writeValue = function writeSingleValue(value) {\n    // Make sure to remove the selected attribute from the previously selected option\n    // Otherwise, screen readers might get confused\n    var currentlySelectedOption = $element[0].options[$element[0].selectedIndex];\n    if (currentlySelectedOption) setOptionSelectedStatus(jqLite(currentlySelectedOption), false);\n\n    if (self.hasOption(value)) {\n      self.removeUnknownOption();\n\n      var hashedVal = hashKey(value);\n      $element.val(hashedVal in self.selectValueMap ? hashedVal : value);\n\n      // Set selected attribute and property on selected option for screen readers\n      var selectedOption = $element[0].options[$element[0].selectedIndex];\n      setOptionSelectedStatus(jqLite(selectedOption), true);\n    } else {\n      self.selectUnknownOrEmptyOption(value);\n    }\n  };\n\n\n  // Tell the select control that an option, with the given value, has been added\n  self.addOption = function(value, element) {\n    // Skip comment nodes, as they only pollute the `optionsMap`\n    if (element[0].nodeType === NODE_TYPE_COMMENT) return;\n\n    assertNotHasOwnProperty(value, '\"option value\"');\n    if (value === '') {\n      self.hasEmptyOption = true;\n      self.emptyOption = element;\n    }\n    var count = optionsMap.get(value) || 0;\n    optionsMap.set(value, count + 1);\n    // Only render at the end of a digest. This improves render performance when many options\n    // are added during a digest and ensures all relevant options are correctly marked as selected\n    scheduleRender();\n  };\n\n  // Tell the select control that an option, with the given value, has been removed\n  self.removeOption = function(value) {\n    var count = optionsMap.get(value);\n    if (count) {\n      if (count === 1) {\n        optionsMap.delete(value);\n        if (value === '') {\n          self.hasEmptyOption = false;\n          self.emptyOption = undefined;\n        }\n      } else {\n        optionsMap.set(value, count - 1);\n      }\n    }\n  };\n\n  // Check whether the select control has an option matching the given value\n  self.hasOption = function(value) {\n    return !!optionsMap.get(value);\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$hasEmptyOption\n   *\n   * @description\n   *\n   * Returns `true` if the select element currently has an empty option\n   * element, i.e. an option that signifies that the select is empty / the selection is null.\n   *\n   */\n  self.$hasEmptyOption = function() {\n    return self.hasEmptyOption;\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$isUnknownOptionSelected\n   *\n   * @description\n   *\n   * Returns `true` if the select element's unknown option is selected. The unknown option is added\n   * and automatically selected whenever the select model doesn't match any option.\n   *\n   */\n  self.$isUnknownOptionSelected = function() {\n    // Presence of the unknown option means it is selected\n    return $element[0].options[0] === self.unknownOption[0];\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$isEmptyOptionSelected\n   *\n   * @description\n   *\n   * Returns `true` if the select element has an empty option and this empty option is currently\n   * selected. Returns `false` if the select element has no empty option or it is not selected.\n   *\n   */\n  self.$isEmptyOptionSelected = function() {\n    return self.hasEmptyOption && $element[0].options[$element[0].selectedIndex] === self.emptyOption[0];\n  };\n\n  self.selectUnknownOrEmptyOption = function(value) {\n    if (value == null && self.emptyOption) {\n      self.removeUnknownOption();\n      self.selectEmptyOption();\n    } else if (self.unknownOption.parent().length) {\n      self.updateUnknownOption(value);\n    } else {\n      self.renderUnknownOption(value);\n    }\n  };\n\n  var renderScheduled = false;\n  function scheduleRender() {\n    if (renderScheduled) return;\n    renderScheduled = true;\n    $scope.$$postDigest(function() {\n      renderScheduled = false;\n      self.ngModelCtrl.$render();\n    });\n  }\n\n  var updateScheduled = false;\n  function scheduleViewValueUpdate(renderAfter) {\n    if (updateScheduled) return;\n\n    updateScheduled = true;\n\n    $scope.$$postDigest(function() {\n      if ($scope.$$destroyed) return;\n\n      updateScheduled = false;\n      self.ngModelCtrl.$setViewValue(self.readValue());\n      if (renderAfter) self.ngModelCtrl.$render();\n    });\n  }\n\n\n  self.registerOption = function(optionScope, optionElement, optionAttrs, interpolateValueFn, interpolateTextFn) {\n\n    if (optionAttrs.$attr.ngValue) {\n      // The value attribute is set by ngValue\n      var oldVal, hashedVal = NaN;\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n\n        var removal;\n        var previouslySelected = optionElement.prop('selected');\n\n        if (isDefined(hashedVal)) {\n          self.removeOption(oldVal);\n          delete self.selectValueMap[hashedVal];\n          removal = true;\n        }\n\n        hashedVal = hashKey(newVal);\n        oldVal = newVal;\n        self.selectValueMap[hashedVal] = newVal;\n        self.addOption(newVal, optionElement);\n        // Set the attribute directly instead of using optionAttrs.$set - this stops the observer\n        // from firing a second time. Other $observers on value will also get the result of the\n        // ngValue expression, not the hashed value\n        optionElement.attr('value', hashedVal);\n\n        if (removal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n\n      });\n    } else if (interpolateValueFn) {\n      // The value attribute is interpolated\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n        // This method is overwritten in ngOptions and has side-effects!\n        self.readValue();\n\n        var removal;\n        var previouslySelected = optionElement.prop('selected');\n\n        if (isDefined(oldVal)) {\n          self.removeOption(oldVal);\n          removal = true;\n        }\n        oldVal = newVal;\n        self.addOption(newVal, optionElement);\n\n        if (removal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n      });\n    } else if (interpolateTextFn) {\n      // The text content is interpolated\n      optionScope.$watch(interpolateTextFn, function interpolateWatchAction(newVal, oldVal) {\n        optionAttrs.$set('value', newVal);\n        var previouslySelected = optionElement.prop('selected');\n        if (oldVal !== newVal) {\n          self.removeOption(oldVal);\n        }\n        self.addOption(newVal, optionElement);\n\n        if (oldVal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n      });\n    } else {\n      // The value attribute is static\n      self.addOption(optionAttrs.value, optionElement);\n    }\n\n\n    optionAttrs.$observe('disabled', function(newVal) {\n\n      // Since model updates will also select disabled options (like ngOptions),\n      // we only have to handle options becoming disabled, not enabled\n\n      if (newVal === 'true' || newVal && optionElement.prop('selected')) {\n        if (self.multiple) {\n          scheduleViewValueUpdate(true);\n        } else {\n          self.ngModelCtrl.$setViewValue(null);\n          self.ngModelCtrl.$render();\n        }\n      }\n    });\n\n    optionElement.on('$destroy', function() {\n      var currentValue = self.readValue();\n      var removeValue = optionAttrs.value;\n\n      self.removeOption(removeValue);\n      scheduleRender();\n\n      if (self.multiple && currentValue && currentValue.indexOf(removeValue) !== -1 ||\n          currentValue === removeValue\n      ) {\n        // When multiple (selected) options are destroyed at the same time, we don't want\n        // to run a model update for each of them. Instead, run a single update in the $$postDigest\n        scheduleViewValueUpdate(true);\n      }\n    });\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name select\n * @restrict E\n *\n * @description\n * HTML `select` element with AngularJS data-binding.\n *\n * The `select` directive is used together with {@link ngModel `ngModel`} to provide data-binding\n * between the scope and the `<select>` control (including setting default values).\n * It also handles dynamic `<option>` elements, which can be added using the {@link ngRepeat `ngRepeat}` or\n * {@link ngOptions `ngOptions`} directives.\n *\n * When an item in the `<select>` menu is selected, the value of the selected option will be bound\n * to the model identified by the `ngModel` directive. With static or repeated options, this is\n * the content of the `value` attribute or the textContent of the `<option>`, if the value attribute is missing.\n * Value and textContent can be interpolated.\n *\n * The {@link select.SelectController select controller} exposes utility functions that can be used\n * to manipulate the select's behavior.\n *\n * ## Matching model and option values\n *\n * In general, the match between the model and an option is evaluated by strictly comparing the model\n * value against the value of the available options.\n *\n * If you are setting the option value with the option's `value` attribute, or textContent, the\n * value will always be a `string` which means that the model value must also be a string.\n * Otherwise the `select` directive cannot match them correctly.\n *\n * To bind the model to a non-string value, you can use one of the following strategies:\n * - the {@link ng.ngOptions `ngOptions`} directive\n *   ({@link ng.select#using-select-with-ngoptions-and-setting-a-default-value})\n * - the {@link ng.ngValue `ngValue`} directive, which allows arbitrary expressions to be\n *   option values ({@link ng.select#using-ngvalue-to-bind-the-model-to-an-array-of-objects Example})\n * - model $parsers / $formatters to convert the string value\n *   ({@link ng.select#binding-select-to-a-non-string-value-via-ngmodel-parsing-formatting Example})\n *\n * If the viewValue of `ngModel` does not match any of the options, then the control\n * will automatically add an \"unknown\" option, which it then removes when the mismatch is resolved.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Choosing between `ngRepeat` and `ngOptions`\n *\n * In many cases, `ngRepeat` can be used on `<option>` elements instead of {@link ng.directive:ngOptions\n * ngOptions} to achieve a similar result. However, `ngOptions` provides some benefits:\n * - more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression\n * - reduced memory consumption by not creating a new scope for each repeated instance\n * - increased render speed by creating the options in a documentFragment instead of individually\n *\n * Specifically, select with repeated options slows down significantly starting at 2000 options in\n * Chrome and Internet Explorer / Edge.\n *\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} multiple Allows multiple options to be selected. The selected values will be\n *     bound to the model as an array.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds required attribute and required validation constraint to\n * the element when the ngRequired expression evaluates to true. Use ngRequired instead of required\n * when you want to data-bind to the required attribute.\n * @param {string=} ngChange AngularJS expression to be executed when selected option(s) changes due to user\n *    interaction with the select element.\n * @param {string=} ngOptions sets the options that the select is populated with and defines what is\n * set on the model on selection. See {@link ngOptions `ngOptions`}.\n * @param {string=} ngAttrSize sets the size of the select element dynamically. Uses the\n * {@link guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes ngAttr} directive.\n *\n *\n * @knownIssue\n *\n * In Firefox, the select model is only updated when the select element is blurred. For example,\n * when switching between options with the keyboard, the select model is only set to the\n * currently selected option when the select is blurred, e.g via tab key or clicking the mouse\n * outside the select.\n *\n * This is due to an ambiguity in the select element specification. See the\n * [issue on the Firefox bug tracker](https://bugzilla.mozilla.org/show_bug.cgi?id=126379)\n * for more information, and this\n * [Github comment for a workaround](https://github.com/angular/angular.js/issues/9134#issuecomment-130800488)\n *\n * @example\n * ### Simple `select` elements with static options\n *\n * <example name=\"static-select\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"singleSelect\"> Single select: </label><br>\n *     <select name=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *\n *     <label for=\"singleSelect\"> Single select with \"not selected\" option and dynamic option values: </label><br>\n *     <select name=\"singleSelect\" id=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"\">---Please select---</option> <!-- not selected / blank option -->\n *       <option value=\"{{data.option1}}\">Option 1</option> <!-- interpolation -->\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *     <tt>singleSelect = {{data.singleSelect}}</tt>\n *\n *     <hr>\n *     <label for=\"multipleSelect\"> Multiple select: </label><br>\n *     <select name=\"multipleSelect\" id=\"multipleSelect\" ng-model=\"data.multipleSelect\" multiple>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *       <option value=\"option-3\">Option 3</option>\n *     </select><br>\n *     <tt>multipleSelect = {{data.multipleSelect}}</tt><br/>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       singleSelect: null,\n *       multipleSelect: [],\n *       option1: 'option-1'\n *      };\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.data.singleSelect = 'nonsense';\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `ngRepeat` to generate `select` options\n * <example name=\"select-ngrepeat\" module=\"ngrepeatSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"repeatSelect\"> Repeat select: </label>\n *     <select name=\"repeatSelect\" id=\"repeatSelect\" ng-model=\"data.model\">\n *       <option ng-repeat=\"option in data.availableOptions\" value=\"{{option.id}}\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <tt>model = {{data.model}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngrepeatSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       model: null,\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ]\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `ngValue` to bind the model to an array of objects\n * <example name=\"select-ngvalue\" module=\"ngvalueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"ngvalueselect\"> ngvalue select: </label>\n *     <select size=\"6\" name=\"ngvalueselect\" ng-model=\"data.model\" multiple>\n *       <option ng-repeat=\"option in data.availableOptions\" ng-value=\"option.value\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <pre>model = {{data.model | json}}</pre><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngvalueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       model: null,\n *       availableOptions: [\n           {value: 'myString', name: 'string'},\n           {value: 1, name: 'integer'},\n           {value: true, name: 'boolean'},\n           {value: null, name: 'null'},\n           {value: {prop: 'value'}, name: 'object'},\n           {value: ['a'], name: 'array'}\n *       ]\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `select` with `ngOptions` and setting a default value\n * See the {@link ngOptions ngOptions documentation} for more `ngOptions` usage examples.\n *\n * <example name=\"select-with-default-values\" module=\"defaultValueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"mySelect\">Make a choice:</label>\n *     <select name=\"mySelect\" id=\"mySelect\"\n *       ng-options=\"option.name for option in data.availableOptions track by option.id\"\n *       ng-model=\"data.selectedOption\"></select>\n *   </form>\n *   <hr>\n *   <tt>option = {{data.selectedOption}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('defaultValueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ],\n *       selectedOption: {id: '3', name: 'Option C'} //This sets the default value of the select in the ui\n *       };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Binding `select` to a non-string value via `ngModel` parsing / formatting\n *\n * <example name=\"select-with-non-string-options\" module=\"nonStringSelect\">\n *   <file name=\"index.html\">\n *     <select ng-model=\"model.id\" convert-to-number>\n *       <option value=\"0\">Zero</option>\n *       <option value=\"1\">One</option>\n *       <option value=\"2\">Two</option>\n *     </select>\n *     {{ model }}\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('nonStringSelect', [])\n *       .run(function($rootScope) {\n *         $rootScope.model = { id: 2 };\n *       })\n *       .directive('convertToNumber', function() {\n *         return {\n *           require: 'ngModel',\n *           link: function(scope, element, attrs, ngModel) {\n *             ngModel.$parsers.push(function(val) {\n *               return parseInt(val, 10);\n *             });\n *             ngModel.$formatters.push(function(val) {\n *               return '' + val;\n *             });\n *           }\n *         };\n *       });\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should initialize to model', function() {\n *       expect(element(by.model('model.id')).$('option:checked').getText()).toEqual('Two');\n *     });\n *   </file>\n * </example>\n *\n */\nvar selectDirective = function() {\n\n  return {\n    restrict: 'E',\n    require: ['select', '?ngModel'],\n    controller: SelectController,\n    priority: 1,\n    link: {\n      pre: selectPreLink,\n      post: selectPostLink\n    }\n  };\n\n  function selectPreLink(scope, element, attr, ctrls) {\n\n      var selectCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1];\n\n      // if ngModel is not defined, we don't need to do anything but set the registerOption\n      // function to noop, so options don't get added internally\n      if (!ngModelCtrl) {\n        selectCtrl.registerOption = noop;\n        return;\n      }\n\n\n      selectCtrl.ngModelCtrl = ngModelCtrl;\n\n      // When the selected item(s) changes we delegate getting the value of the select control\n      // to the `readValue` method, which can be changed if the select can have multiple\n      // selected values or if the options are being generated by `ngOptions`\n      element.on('change', function() {\n        selectCtrl.removeUnknownOption();\n        scope.$apply(function() {\n          ngModelCtrl.$setViewValue(selectCtrl.readValue());\n        });\n      });\n\n      // If the select allows multiple values then we need to modify how we read and write\n      // values from and to the control; also what it means for the value to be empty and\n      // we have to add an extra watch since ngModel doesn't work well with arrays - it\n      // doesn't trigger rendering if only an item in the array changes.\n      if (attr.multiple) {\n        selectCtrl.multiple = true;\n\n        // Read value now needs to check each option to see if it is selected\n        selectCtrl.readValue = function readMultipleValue() {\n          var array = [];\n          forEach(element.find('option'), function(option) {\n            if (option.selected && !option.disabled) {\n              var val = option.value;\n              array.push(val in selectCtrl.selectValueMap ? selectCtrl.selectValueMap[val] : val);\n            }\n          });\n          return array;\n        };\n\n        // Write value now needs to set the selected property of each matching option\n        selectCtrl.writeValue = function writeMultipleValue(value) {\n          forEach(element.find('option'), function(option) {\n            var shouldBeSelected = !!value && (includes(value, option.value) ||\n                                               includes(value, selectCtrl.selectValueMap[option.value]));\n            var currentlySelected = option.selected;\n\n            // Support: IE 9-11 only, Edge 12-15+\n            // In IE and Edge adding options to the selection via shift+click/UP/DOWN\n            // will de-select already selected options if \"selected\" on those options was set\n            // more than once (i.e. when the options were already selected)\n            // So we only modify the selected property if necessary.\n            // Note: this behavior cannot be replicated via unit tests because it only shows in the\n            // actual user interface.\n            if (shouldBeSelected !== currentlySelected) {\n              setOptionSelectedStatus(jqLite(option), shouldBeSelected);\n            }\n\n          });\n        };\n\n        // we have to do it on each watch since ngModel watches reference, but\n        // we need to work of an array, so we need to see if anything was inserted/removed\n        var lastView, lastViewRef = NaN;\n        scope.$watch(function selectMultipleWatch() {\n          if (lastViewRef === ngModelCtrl.$viewValue && !equals(lastView, ngModelCtrl.$viewValue)) {\n            lastView = shallowCopy(ngModelCtrl.$viewValue);\n            ngModelCtrl.$render();\n          }\n          lastViewRef = ngModelCtrl.$viewValue;\n        });\n\n        // If we are a multiple select then value is now a collection\n        // so the meaning of $isEmpty changes\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n\n      }\n    }\n\n    function selectPostLink(scope, element, attrs, ctrls) {\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n\n      // We delegate rendering to the `writeValue` method, which can be changed\n      // if the select can have multiple selected values or if the options are being\n      // generated by `ngOptions`.\n      // This must be done in the postLink fn to prevent $render to be called before\n      // all nodes have been linked correctly.\n      ngModelCtrl.$render = function() {\n        selectCtrl.writeValue(ngModelCtrl.$viewValue);\n      };\n    }\n};\n\n\n// The option directive is purely designed to communicate the existence (or lack of)\n// of dynamically created (and destroyed) option elements to their containing select\n// directive via its controller.\nvar optionDirective = ['$interpolate', function($interpolate) {\n  return {\n    restrict: 'E',\n    priority: 100,\n    compile: function(element, attr) {\n      var interpolateValueFn, interpolateTextFn;\n\n      if (isDefined(attr.ngValue)) {\n        // Will be handled by registerOption\n      } else if (isDefined(attr.value)) {\n        // If the value attribute is defined, check if it contains an interpolation\n        interpolateValueFn = $interpolate(attr.value, true);\n      } else {\n        // If the value attribute is not defined then we fall back to the\n        // text content of the option element, which may be interpolated\n        interpolateTextFn = $interpolate(element.text(), true);\n        if (!interpolateTextFn) {\n          attr.$set('value', element.text());\n        }\n      }\n\n      return function(scope, element, attr) {\n        // This is an optimization over using ^^ since we don't want to have to search\n        // all the way to the root of the DOM for every single option element\n        var selectCtrlName = '$selectController',\n            parent = element.parent(),\n            selectCtrl = parent.data(selectCtrlName) ||\n              parent.parent().data(selectCtrlName); // in case we are in optgroup\n\n        if (selectCtrl) {\n          selectCtrl.registerOption(scope, element, attr, interpolateValueFn, interpolateTextFn);\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRequired\n * @restrict A\n *\n * @param {expression} ngRequired AngularJS expression. If it evaluates to `true`, it sets the\n *                                `required` attribute to the element and adds the `required`\n *                                {@link ngModel.NgModelController#$validators `validator`}.\n *\n * @description\n *\n * ngRequired adds the required {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for {@link input `input`} and {@link select `select`} controls, but can also be\n * applied to custom controls.\n *\n * The directive sets the `required` attribute on the element if the AngularJS expression inside\n * `ngRequired` evaluates to true. A special directive for setting `required` is necessary because we\n * cannot use interpolation inside `required`. See the {@link guide/interpolation interpolation guide}\n * for more info.\n *\n * The validator will set the `required` error key to true if the `required` attribute is set and\n * calling {@link ngModel.NgModelController#$isEmpty `NgModelController.$isEmpty`} with the\n * {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`} returns `true`. For example, the\n * `$isEmpty()` implementation for `input[text]` checks the length of the `$viewValue`. When developing\n * custom controls, `$isEmpty()` can be overwritten to account for a $viewValue that is not string-based.\n *\n * @example\n * <example name=\"ngRequiredDirective\" module=\"ngRequiredExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngRequiredExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.required = true;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"required\">Toggle required: </label>\n *         <input type=\"checkbox\" ng-model=\"required\" id=\"required\" />\n *         <br>\n *         <label for=\"input\">This input must be filled if `required` is true: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-required=\"required\" /><br>\n *         <hr>\n *         required error set? = <code>{{form.input.$error.required}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var required = element(by.binding('form.input.$error.required'));\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should set the required error', function() {\n         expect(required.getText()).toContain('true');\n\n         input.sendKeys('123');\n         expect(required.getText()).not.toContain('true');\n         expect(model.getText()).toContain('123');\n       });\n *   </file>\n * </example>\n */\nvar requiredDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n      attr.required = true; // force truthy in case we are on non input element\n\n      ctrl.$validators.required = function(modelValue, viewValue) {\n        return !attr.required || !ctrl.$isEmpty(viewValue);\n      };\n\n      attr.$observe('required', function() {\n        ctrl.$validate();\n      });\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngPattern\n * @restrict A\n *\n * @param {expression|RegExp} ngPattern AngularJS expression that must evaluate to a `RegExp` or a `String`\n *                                      parsable into a `RegExp`, or a `RegExp` literal. See above for\n *                                      more details.\n *\n * @description\n *\n * ngPattern adds the pattern {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `pattern` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * does not match a RegExp which is obtained from the `ngPattern` attribute value:\n * - the value is an AngularJS expression:\n *   - If the expression evaluates to a RegExp object, then this is used directly.\n *   - If the expression evaluates to a string, then it will be converted to a RegExp after wrapping it\n *     in `^` and `$` characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n * - If the value is a RegExp literal, e.g. `ngPattern=\"/^\\d+$/\"`, it is used directly.\n *\n * <div class=\"alert alert-info\">\n * **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n * start at the index of the last search's match, thus not taking the whole input value into\n * account.\n * </div>\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `pattern` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngPattern` does not set the `pattern` attribute and therefore HTML5 constraint validation is\n *     not available.\n *   </li>\n *   <li>\n *     The `ngPattern` attribute must be an expression, while the `pattern` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngPatternDirective\" module=\"ngPatternExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngPatternExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.regex = '\\\\d+';\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"regex\">Set a pattern (regex string): </label>\n *         <input type=\"text\" ng-model=\"regex\" id=\"regex\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current pattern: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-pattern=\"regex\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default pattern', function() {\n         input.sendKeys('aaa');\n         expect(model.getText()).not.toContain('aaa');\n\n         input.clear().then(function() {\n           input.sendKeys('123');\n           expect(model.getText()).toContain('123');\n         });\n       });\n *   </file>\n * </example>\n */\nvar patternDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var regexp, patternExp = attr.ngPattern || attr.pattern;\n      attr.$observe('pattern', function(regex) {\n        if (isString(regex) && regex.length > 0) {\n          regex = new RegExp('^' + regex + '$');\n        }\n\n        if (regex && !regex.test) {\n          throw minErr('ngPattern')('noregexp',\n            'Expected {0} to be a RegExp but was {1}. Element: {2}', patternExp,\n            regex, startingTag(elm));\n        }\n\n        regexp = regex || undefined;\n        ctrl.$validate();\n      });\n\n      ctrl.$validators.pattern = function(modelValue, viewValue) {\n        // HTML5 pattern constraint validates the input value, so we validate the viewValue\n        return ctrl.$isEmpty(viewValue) || isUndefined(regexp) || regexp.test(viewValue);\n      };\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngMaxlength\n * @restrict A\n *\n * @param {expression} ngMaxlength AngularJS expression that must evaluate to a `Number` or `String`\n *                                 parsable into a `Number`. Used as value for the `maxlength`\n *                                 {@link ngModel.NgModelController#$validators validator}.\n *\n * @description\n *\n * ngMaxlength adds the maxlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `maxlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is longer than the integer obtained by evaluating the AngularJS expression given in the\n * `ngMaxlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `maxlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMaxlength` does not set the `maxlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMaxlength` attribute must be an expression, while the `maxlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMaxlengthDirective\" module=\"ngMaxlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMaxlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.maxlength = 5;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"maxlength\">Set a maxlength: </label>\n *         <input type=\"number\" ng-model=\"maxlength\" id=\"maxlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current maxlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-maxlength=\"maxlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default maxlength', function() {\n         input.sendKeys('abcdef');\n         expect(model.getText()).not.toContain('abcdef');\n\n         input.clear().then(function() {\n           input.sendKeys('abcde');\n           expect(model.getText()).toContain('abcde');\n         });\n       });\n *   </file>\n * </example>\n */\nvar maxlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var maxlength = -1;\n      attr.$observe('maxlength', function(value) {\n        var intVal = toInt(value);\n        maxlength = isNumberNaN(intVal) ? -1 : intVal;\n        ctrl.$validate();\n      });\n      ctrl.$validators.maxlength = function(modelValue, viewValue) {\n        return (maxlength < 0) || ctrl.$isEmpty(viewValue) || (viewValue.length <= maxlength);\n      };\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngMinlength\n * @restrict A\n *\n * @param {expression} ngMinlength AngularJS expression that must evaluate to a `Number` or `String`\n *                                 parsable into a `Number`. Used as value for the `minlength`\n *                                 {@link ngModel.NgModelController#$validators validator}.\n *\n * @description\n *\n * ngMinlength adds the minlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `minlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is shorter than the integer obtained by evaluating the AngularJS expression given in the\n * `ngMinlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `minlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMinlength` does not set the `minlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMinlength` value must be an expression, while the `minlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMinlengthDirective\" module=\"ngMinlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMinlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.minlength = 3;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"minlength\">Set a minlength: </label>\n *         <input type=\"number\" ng-model=\"minlength\" id=\"minlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current minlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-minlength=\"minlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default minlength', function() {\n         input.sendKeys('ab');\n         expect(model.getText()).not.toContain('ab');\n\n         input.sendKeys('abc');\n         expect(model.getText()).toContain('abc');\n       });\n *   </file>\n * </example>\n */\nvar minlengthDirective = function() {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var minlength = 0;\n      attr.$observe('minlength', function(value) {\n        minlength = toInt(value) || 0;\n        ctrl.$validate();\n      });\n      ctrl.$validators.minlength = function(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || viewValue.length >= minlength;\n      };\n    }\n  };\n};\n\nif (window.angular.bootstrap) {\n  // AngularJS is already loaded, so we can return here...\n  if (window.console) {\n    console.log('WARNING: Tried to load AngularJS more than once.');\n  }\n  return;\n}\n\n// try to bind to jquery now so that one can write jqLite(fn)\n// but we will rebind on bootstrap again.\nbindJQuery();\n\npublishExternalAPI(angular);\n\nangular.module(\"ngLocale\", [], [\"$provide\", function($provide) {\nvar PLURAL_CATEGORY = {ZERO: \"zero\", ONE: \"one\", TWO: \"two\", FEW: \"few\", MANY: \"many\", OTHER: \"other\"};\nfunction getDecimals(n) {\n  n = n + '';\n  var i = n.indexOf('.');\n  return (i == -1) ? 0 : n.length - i - 1;\n}\n\nfunction getVF(n, opt_precision) {\n  var v = opt_precision;\n\n  if (undefined === v) {\n    v = Math.min(getDecimals(n), 3);\n  }\n\n  var base = Math.pow(10, v);\n  var f = ((n * base) | 0) % base;\n  return {v: v, f: f};\n}\n\n$provide.value(\"$locale\", {\n  \"DATETIME_FORMATS\": {\n    \"AMPMS\": [\n      \"AM\",\n      \"PM\"\n    ],\n    \"DAY\": [\n      \"Sunday\",\n      \"Monday\",\n      \"Tuesday\",\n      \"Wednesday\",\n      \"Thursday\",\n      \"Friday\",\n      \"Saturday\"\n    ],\n    \"ERANAMES\": [\n      \"Before Christ\",\n      \"Anno Domini\"\n    ],\n    \"ERAS\": [\n      \"BC\",\n      \"AD\"\n    ],\n    \"FIRSTDAYOFWEEK\": 6,\n    \"MONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"SHORTDAY\": [\n      \"Sun\",\n      \"Mon\",\n      \"Tue\",\n      \"Wed\",\n      \"Thu\",\n      \"Fri\",\n      \"Sat\"\n    ],\n    \"SHORTMONTH\": [\n      \"Jan\",\n      \"Feb\",\n      \"Mar\",\n      \"Apr\",\n      \"May\",\n      \"Jun\",\n      \"Jul\",\n      \"Aug\",\n      \"Sep\",\n      \"Oct\",\n      \"Nov\",\n      \"Dec\"\n    ],\n    \"STANDALONEMONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"WEEKENDRANGE\": [\n      5,\n      6\n    ],\n    \"fullDate\": \"EEEE, MMMM d, y\",\n    \"longDate\": \"MMMM d, y\",\n    \"medium\": \"MMM d, y h:mm:ss a\",\n    \"mediumDate\": \"MMM d, y\",\n    \"mediumTime\": \"h:mm:ss a\",\n    \"short\": \"M/d/yy h:mm a\",\n    \"shortDate\": \"M/d/yy\",\n    \"shortTime\": \"h:mm a\"\n  },\n  \"NUMBER_FORMATS\": {\n    \"CURRENCY_SYM\": \"$\",\n    \"DECIMAL_SEP\": \".\",\n    \"GROUP_SEP\": \",\",\n    \"PATTERNS\": [\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 3,\n        \"minFrac\": 0,\n        \"minInt\": 1,\n        \"negPre\": \"-\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\",\n        \"posSuf\": \"\"\n      },\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 2,\n        \"minFrac\": 2,\n        \"minInt\": 1,\n        \"negPre\": \"-\\u00a4\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\\u00a4\",\n        \"posSuf\": \"\"\n      }\n    ]\n  },\n  \"id\": \"en-us\",\n  \"localeID\": \"en_US\",\n  \"pluralCat\": function(n, opt_precision) {  var i = n | 0;  var vf = getVF(n, opt_precision);  if (i == 1 && vf.v == 0) {    return PLURAL_CATEGORY.ONE;  }  return PLURAL_CATEGORY.OTHER;}\n});\n}]);\n\n  jqLite(function() {\n    angularInit(window.document, bootstrap);\n  });\n\n})(window);\n\n!window.angular.$$csp().noInlineStyle && window.angular.element(document.head).prepend('<style type=\"text/css\">@charset \"UTF-8\";[ng\\\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');"
  },
  {
    "path": "test/angular/1.7/angular-animate.js",
    "content": "/**\n * @license AngularJS v1.7.9\n * (c) 2010-2018 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\nvar ELEMENT_NODE = 1;\nvar COMMENT_NODE = 8;\n\nvar ADD_CLASS_SUFFIX = '-add';\nvar REMOVE_CLASS_SUFFIX = '-remove';\nvar EVENT_CLASS_PREFIX = 'ng-';\nvar ACTIVE_CLASS_SUFFIX = '-active';\nvar PREPARE_CLASS_SUFFIX = '-prepare';\n\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\nvar NG_ANIMATE_CHILDREN_DATA = '$$ngAnimateChildren';\n\n// Detect proper transitionend/animationend event names.\nvar CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;\n\n// If unprefixed events are not supported but webkit-prefixed are, use the latter.\n// Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.\n// Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`\n// but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.\n// Register both events in case `window.onanimationend` is not supported because of that,\n// do the same for `transitionend` as Safari is likely to exhibit similar behavior.\n// Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit\n// therefore there is no reason to test anymore for other vendor prefixes:\n// http://caniuse.com/#search=transition\nif ((window.ontransitionend === undefined) && (window.onwebkittransitionend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  TRANSITION_PROP = 'WebkitTransition';\n  TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';\n} else {\n  TRANSITION_PROP = 'transition';\n  TRANSITIONEND_EVENT = 'transitionend';\n}\n\nif ((window.onanimationend === undefined) && (window.onwebkitanimationend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  ANIMATION_PROP = 'WebkitAnimation';\n  ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';\n} else {\n  ANIMATION_PROP = 'animation';\n  ANIMATIONEND_EVENT = 'animationend';\n}\n\nvar DURATION_KEY = 'Duration';\nvar PROPERTY_KEY = 'Property';\nvar DELAY_KEY = 'Delay';\nvar TIMING_KEY = 'TimingFunction';\nvar ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';\nvar ANIMATION_PLAYSTATE_KEY = 'PlayState';\nvar SAFE_FAST_FORWARD_DURATION_VALUE = 9999;\n\nvar ANIMATION_DELAY_PROP = ANIMATION_PROP + DELAY_KEY;\nvar ANIMATION_DURATION_PROP = ANIMATION_PROP + DURATION_KEY;\nvar TRANSITION_DELAY_PROP = TRANSITION_PROP + DELAY_KEY;\nvar TRANSITION_DURATION_PROP = TRANSITION_PROP + DURATION_KEY;\n\nvar ngMinErr = angular.$$minErr('ng');\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction packageStyles(options) {\n  var styles = {};\n  if (options && (options.to || options.from)) {\n    styles.to = options.to;\n    styles.from = options.from;\n  }\n  return styles;\n}\n\nfunction pendClasses(classes, fix, isPrefix) {\n  var className = '';\n  classes = isArray(classes)\n      ? classes\n      : classes && isString(classes) && classes.length\n          ? classes.split(/\\s+/)\n          : [];\n  forEach(classes, function(klass, i) {\n    if (klass && klass.length > 0) {\n      className += (i > 0) ? ' ' : '';\n      className += isPrefix ? fix + klass\n                            : klass + fix;\n    }\n  });\n  return className;\n}\n\nfunction removeFromArray(arr, val) {\n  var index = arr.indexOf(val);\n  if (val >= 0) {\n    arr.splice(index, 1);\n  }\n}\n\nfunction stripCommentsFromElement(element) {\n  if (element instanceof jqLite) {\n    switch (element.length) {\n      case 0:\n        return element;\n\n      case 1:\n        // there is no point of stripping anything if the element\n        // is the only element within the jqLite wrapper.\n        // (it's important that we retain the element instance.)\n        if (element[0].nodeType === ELEMENT_NODE) {\n          return element;\n        }\n        break;\n\n      default:\n        return jqLite(extractElementNode(element));\n    }\n  }\n\n  if (element.nodeType === ELEMENT_NODE) {\n    return jqLite(element);\n  }\n}\n\nfunction extractElementNode(element) {\n  if (!element[0]) return element;\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction $$addClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.addClass(elm, className);\n  });\n}\n\nfunction $$removeClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.removeClass(elm, className);\n  });\n}\n\nfunction applyAnimationClassesFactory($$jqLite) {\n  return function(element, options) {\n    if (options.addClass) {\n      $$addClass($$jqLite, element, options.addClass);\n      options.addClass = null;\n    }\n    if (options.removeClass) {\n      $$removeClass($$jqLite, element, options.removeClass);\n      options.removeClass = null;\n    }\n  };\n}\n\nfunction prepareAnimationOptions(options) {\n  options = options || {};\n  if (!options.$$prepared) {\n    var domOperation = options.domOperation || noop;\n    options.domOperation = function() {\n      options.$$domOperationFired = true;\n      domOperation();\n      domOperation = noop;\n    };\n    options.$$prepared = true;\n  }\n  return options;\n}\n\nfunction applyAnimationStyles(element, options) {\n  applyAnimationFromStyles(element, options);\n  applyAnimationToStyles(element, options);\n}\n\nfunction applyAnimationFromStyles(element, options) {\n  if (options.from) {\n    element.css(options.from);\n    options.from = null;\n  }\n}\n\nfunction applyAnimationToStyles(element, options) {\n  if (options.to) {\n    element.css(options.to);\n    options.to = null;\n  }\n}\n\nfunction mergeAnimationDetails(element, oldAnimation, newAnimation) {\n  var target = oldAnimation.options || {};\n  var newOptions = newAnimation.options || {};\n\n  var toAdd = (target.addClass || '') + ' ' + (newOptions.addClass || '');\n  var toRemove = (target.removeClass || '') + ' ' + (newOptions.removeClass || '');\n  var classes = resolveElementClasses(element.attr('class'), toAdd, toRemove);\n\n  if (newOptions.preparationClasses) {\n    target.preparationClasses = concatWithSpace(newOptions.preparationClasses, target.preparationClasses);\n    delete newOptions.preparationClasses;\n  }\n\n  // noop is basically when there is no callback; otherwise something has been set\n  var realDomOperation = target.domOperation !== noop ? target.domOperation : null;\n\n  extend(target, newOptions);\n\n  // TODO(matsko or sreeramu): proper fix is to maintain all animation callback in array and call at last,but now only leave has the callback so no issue with this.\n  if (realDomOperation) {\n    target.domOperation = realDomOperation;\n  }\n\n  if (classes.addClass) {\n    target.addClass = classes.addClass;\n  } else {\n    target.addClass = null;\n  }\n\n  if (classes.removeClass) {\n    target.removeClass = classes.removeClass;\n  } else {\n    target.removeClass = null;\n  }\n\n  oldAnimation.addClass = target.addClass;\n  oldAnimation.removeClass = target.removeClass;\n\n  return target;\n}\n\nfunction resolveElementClasses(existing, toAdd, toRemove) {\n  var ADD_CLASS = 1;\n  var REMOVE_CLASS = -1;\n\n  var flags = {};\n  existing = splitClassesToLookup(existing);\n\n  toAdd = splitClassesToLookup(toAdd);\n  forEach(toAdd, function(value, key) {\n    flags[key] = ADD_CLASS;\n  });\n\n  toRemove = splitClassesToLookup(toRemove);\n  forEach(toRemove, function(value, key) {\n    flags[key] = flags[key] === ADD_CLASS ? null : REMOVE_CLASS;\n  });\n\n  var classes = {\n    addClass: '',\n    removeClass: ''\n  };\n\n  forEach(flags, function(val, klass) {\n    var prop, allow;\n    if (val === ADD_CLASS) {\n      prop = 'addClass';\n      allow = !existing[klass] || existing[klass + REMOVE_CLASS_SUFFIX];\n    } else if (val === REMOVE_CLASS) {\n      prop = 'removeClass';\n      allow = existing[klass] || existing[klass + ADD_CLASS_SUFFIX];\n    }\n    if (allow) {\n      if (classes[prop].length) {\n        classes[prop] += ' ';\n      }\n      classes[prop] += klass;\n    }\n  });\n\n  function splitClassesToLookup(classes) {\n    if (isString(classes)) {\n      classes = classes.split(' ');\n    }\n\n    var obj = {};\n    forEach(classes, function(klass) {\n      // sometimes the split leaves empty string values\n      // incase extra spaces were applied to the options\n      if (klass.length) {\n        obj[klass] = true;\n      }\n    });\n    return obj;\n  }\n\n  return classes;\n}\n\nfunction getDomNode(element) {\n  return (element instanceof jqLite) ? element[0] : element;\n}\n\nfunction applyGeneratedPreparationClasses($$jqLite, element, event, options) {\n  var classes = '';\n  if (event) {\n    classes = pendClasses(event, EVENT_CLASS_PREFIX, true);\n  }\n  if (options.addClass) {\n    classes = concatWithSpace(classes, pendClasses(options.addClass, ADD_CLASS_SUFFIX));\n  }\n  if (options.removeClass) {\n    classes = concatWithSpace(classes, pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX));\n  }\n  if (classes.length) {\n    options.preparationClasses = classes;\n    element.addClass(classes);\n  }\n}\n\nfunction clearGeneratedClasses(element, options) {\n  if (options.preparationClasses) {\n    element.removeClass(options.preparationClasses);\n    options.preparationClasses = null;\n  }\n  if (options.activeClasses) {\n    element.removeClass(options.activeClasses);\n    options.activeClasses = null;\n  }\n}\n\nfunction blockKeyframeAnimations(node, applyBlock) {\n  var value = applyBlock ? 'paused' : '';\n  var key = ANIMATION_PROP + ANIMATION_PLAYSTATE_KEY;\n  applyInlineStyle(node, [key, value]);\n  return [key, value];\n}\n\nfunction applyInlineStyle(node, styleTuple) {\n  var prop = styleTuple[0];\n  var value = styleTuple[1];\n  node.style[prop] = value;\n}\n\nfunction concatWithSpace(a,b) {\n  if (!a) return b;\n  if (!b) return a;\n  return a + ' ' + b;\n}\n\nvar helpers = {\n  blockTransitions: function(node, duration) {\n    // we use a negative delay value since it performs blocking\n    // yet it doesn't kill any existing transitions running on the\n    // same element which makes this safe for class-based animations\n    var value = duration ? '-' + duration + 's' : '';\n    applyInlineStyle(node, [TRANSITION_DELAY_PROP, value]);\n    return [TRANSITION_DELAY_PROP, value];\n  }\n};\n\nvar $$rAFSchedulerFactory = ['$$rAF', function($$rAF) {\n  var queue, cancelFn;\n\n  function scheduler(tasks) {\n    // we make a copy since RAFScheduler mutates the state\n    // of the passed in array variable and this would be difficult\n    // to track down on the outside code\n    queue = queue.concat(tasks);\n    nextTick();\n  }\n\n  queue = scheduler.queue = [];\n\n  /* waitUntilQuiet does two things:\n   * 1. It will run the FINAL `fn` value only when an uncanceled RAF has passed through\n   * 2. It will delay the next wave of tasks from running until the quiet `fn` has run.\n   *\n   * The motivation here is that animation code can request more time from the scheduler\n   * before the next wave runs. This allows for certain DOM properties such as classes to\n   * be resolved in time for the next animation to run.\n   */\n  scheduler.waitUntilQuiet = function(fn) {\n    if (cancelFn) cancelFn();\n\n    cancelFn = $$rAF(function() {\n      cancelFn = null;\n      fn();\n      nextTick();\n    });\n  };\n\n  return scheduler;\n\n  function nextTick() {\n    if (!queue.length) return;\n\n    var items = queue.shift();\n    for (var i = 0; i < items.length; i++) {\n      items[i]();\n    }\n\n    if (!cancelFn) {\n      $$rAF(function() {\n        if (!cancelFn) nextTick();\n      });\n    }\n  }\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateChildren\n * @restrict AE\n * @element ANY\n *\n * @description\n *\n * ngAnimateChildren allows you to specify that children of this element should animate even if any\n * of the children's parents are currently animating. By default, when an element has an active `enter`, `leave`, or `move`\n * (structural) animation, child elements that also have an active structural animation are not animated.\n *\n * Note that even if `ngAnimateChildren` is set, no child animations will run when the parent element is removed from the DOM (`leave` animation).\n *\n *\n * @param {string} ngAnimateChildren If the value is empty, `true` or `on`,\n *     then child animations are allowed. If the value is `false`, child animations are not allowed.\n *\n * @example\n * <example module=\"ngAnimateChildren\" name=\"ngAnimateChildren\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainController as main\">\n         <label>Show container? <input type=\"checkbox\" ng-model=\"main.enterElement\" /></label>\n         <label>Animate children? <input type=\"checkbox\" ng-model=\"main.animateChildren\" /></label>\n         <hr>\n         <div ng-animate-children=\"{{main.animateChildren}}\">\n           <div ng-if=\"main.enterElement\" class=\"container\">\n             List of items:\n             <div ng-repeat=\"item in [0, 1, 2, 3]\" class=\"item\">Item {{item}}</div>\n           </div>\n         </div>\n       </div>\n     </file>\n     <file name=\"animations.css\">\n\n      .container.ng-enter,\n      .container.ng-leave {\n        transition: all ease 1.5s;\n      }\n\n      .container.ng-enter,\n      .container.ng-leave-active {\n        opacity: 0;\n      }\n\n      .container.ng-leave,\n      .container.ng-enter-active {\n        opacity: 1;\n      }\n\n      .item {\n        background: firebrick;\n        color: #FFF;\n        margin-bottom: 10px;\n      }\n\n      .item.ng-enter,\n      .item.ng-leave {\n        transition: transform 1.5s ease;\n      }\n\n      .item.ng-enter {\n        transform: translateX(50px);\n      }\n\n      .item.ng-enter-active {\n        transform: translateX(0);\n      }\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngAnimateChildren', ['ngAnimate'])\n        .controller('MainController', function MainController() {\n          this.animateChildren = false;\n          this.enterElement = false;\n        });\n    </file>\n  </example>\n */\nvar $$AnimateChildrenDirective = ['$interpolate', function($interpolate) {\n  return {\n    link: function(scope, element, attrs) {\n      var val = attrs.ngAnimateChildren;\n      if (isString(val) && val.length === 0) { //empty attribute\n        element.data(NG_ANIMATE_CHILDREN_DATA, true);\n      } else {\n        // Interpolate and set the value, so that it is available to\n        // animations that run right after compilation\n        setData($interpolate(val)(scope));\n        attrs.$observe('ngAnimateChildren', setData);\n      }\n\n      function setData(value) {\n        value = value === 'on' || value === 'true';\n        element.data(NG_ANIMATE_CHILDREN_DATA, value);\n      }\n    }\n  };\n}];\n\n/* exported $AnimateCssProvider */\n\nvar ANIMATE_TIMER_KEY = '$$animateCss';\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n *\n * @description\n * The `$animateCss` service is a useful utility to trigger customized CSS-based transitions/keyframes\n * from a JavaScript-based animation or directly from a directive. The purpose of `$animateCss` is NOT\n * to side-step how `$animate` and ngAnimate work, but the goal is to allow pre-existing animations or\n * directives to create more complex animations that can be purely driven using CSS code.\n *\n * Note that only browsers that support CSS transitions and/or keyframe animations are capable of\n * rendering animations triggered via `$animateCss` (bad news for IE9 and lower).\n *\n * ## General Use\n * Once again, `$animateCss` is designed to be used inside of a registered JavaScript animation that\n * is powered by ngAnimate. It is possible to use `$animateCss` directly inside of a directive, however,\n * any automatic control over cancelling animations and/or preventing animations from being run on\n * child elements will not be handled by AngularJS. For this to work as expected, please use `$animate` to\n * trigger the animation and then setup a JavaScript animation that injects `$animateCss` to trigger\n * the CSS animation.\n *\n * The example below shows how we can create a folding animation on an element using `ng-if`:\n *\n * ```html\n * <!-- notice the `fold-animation` CSS class -->\n * <div ng-if=\"onOff\" class=\"fold-animation\">\n *   This element will go BOOM\n * </div>\n * <button ng-click=\"onOff=true\">Fold In</button>\n * ```\n *\n * Now we create the **JavaScript animation** that will trigger the CSS transition:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * ## More Advanced Uses\n *\n * `$animateCss` is the underlying code that ngAnimate uses to power **CSS-based animations** behind the scenes. Therefore CSS hooks\n * like `.ng-EVENT`, `.ng-EVENT-active`, `.ng-EVENT-stagger` are all features that can be triggered using `$animateCss` via JavaScript code.\n *\n * This also means that just about any combination of adding classes, removing classes, setting styles, dynamically setting a keyframe animation,\n * applying a hardcoded duration or delay value, changing the animation easing or applying a stagger animation are all options that work with\n * `$animateCss`. The service itself is smart enough to figure out the combination of options and examine the element styling properties in order\n * to provide a working animation that will run in CSS.\n *\n * The example below showcases a more advanced version of the `.fold-animation` from the example above:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         addClass: 'red large-text pulse-twice',\n *         easing: 'ease-out',\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Since we're adding/removing CSS classes then the CSS transition will also pick those up:\n *\n * ```css\n * /&#42; since a hardcoded duration value of 1 was provided in the JavaScript animation code,\n * the CSS classes below will be transitioned despite them being defined as regular CSS classes &#42;/\n * .red { background:red; }\n * .large-text { font-size:20px; }\n *\n * /&#42; we can also use a keyframe animation and $animateCss will make it work alongside the transition &#42;/\n * .pulse-twice {\n *   animation: 0.5s pulse linear 2;\n *   -webkit-animation: 0.5s pulse linear 2;\n * }\n *\n * @keyframes pulse {\n *   from { transform: scale(0.5); }\n *   to { transform: scale(1.5); }\n * }\n *\n * @-webkit-keyframes pulse {\n *   from { -webkit-transform: scale(0.5); }\n *   to { -webkit-transform: scale(1.5); }\n * }\n * ```\n *\n * Given this complex combination of CSS classes, styles and options, `$animateCss` will figure everything out and make the animation happen.\n *\n * ## How the Options are handled\n *\n * `$animateCss` is very versatile and intelligent when it comes to figuring out what configurations to apply to the element to ensure the animation\n * works with the options provided. Say for example we were adding a class that contained a keyframe value and we wanted to also animate some inline\n * styles using the `from` and `to` properties.\n *\n * ```js\n * var animator = $animateCss(element, {\n *   from: { background:'red' },\n *   to: { background:'blue' }\n * });\n * animator.start();\n * ```\n *\n * ```css\n * .rotating-animation {\n *   animation:0.5s rotate linear;\n *   -webkit-animation:0.5s rotate linear;\n * }\n *\n * @keyframes rotate {\n *   from { transform: rotate(0deg); }\n *   to { transform: rotate(360deg); }\n * }\n *\n * @-webkit-keyframes rotate {\n *   from { -webkit-transform: rotate(0deg); }\n *   to { -webkit-transform: rotate(360deg); }\n * }\n * ```\n *\n * The missing pieces here are that we do not have a transition set (within the CSS code nor within the `$animateCss` options) and the duration of the animation is\n * going to be detected from what the keyframe styles on the CSS class are. In this event, `$animateCss` will automatically create an inline transition\n * style matching the duration detected from the keyframe style (which is present in the CSS class that is being added) and then prepare both the transition\n * and keyframe animations to run in parallel on the element. Then when the animation is underway the provided `from` and `to` CSS styles will be applied\n * and spread across the transition and keyframe animation.\n *\n * ## What is returned\n *\n * `$animateCss` works in two stages: a preparation phase and an animation phase. Therefore when `$animateCss` is first called it will NOT actually\n * start the animation. All that is going on here is that the element is being prepared for the animation (which means that the generated CSS classes are\n * added and removed on the element). Once `$animateCss` is called it will return an object with the following properties:\n *\n * ```js\n * var animator = $animateCss(element, { ... });\n * ```\n *\n * Now what do the contents of our `animator` variable look like:\n *\n * ```js\n * {\n *   // starts the animation\n *   start: Function,\n *\n *   // ends (aborts) the animation\n *   end: Function\n * }\n * ```\n *\n * To actually start the animation we need to run `animation.start()` which will then return a promise that we can hook into to detect when the animation ends.\n * If we choose not to run the animation then we MUST run `animation.end()` to perform a cleanup on the element (since some CSS classes and styles may have been\n * applied to the element during the preparation phase). Note that all other properties such as duration, delay, transitions and keyframes are just properties\n * and that changing them will not reconfigure the parameters of the animation.\n *\n * ### runner.done() vs runner.then()\n * It is documented that `animation.start()` will return a promise object and this is true, however, there is also an additional method available on the\n * runner called `.done(callbackFn)`. The done method works the same as `.finally(callbackFn)`, however, it does **not trigger a digest to occur**.\n * Therefore, for performance reasons, it's always best to use `runner.done(callback)` instead of `runner.then()`, `runner.catch()` or `runner.finally()`\n * unless you really need a digest to kick off afterwards.\n *\n * Keep in mind that, to make this easier, ngAnimate has tweaked the JS animations API to recognize when a runner instance is returned from $animateCss\n * (so there is no need to call `runner.done(doneFn)` inside of your JavaScript animation code).\n * Check the {@link ngAnimate.$animateCss#usage animation code above} to see how this works.\n *\n * @param {DOMElement} element the element that will be animated\n * @param {object} options the animation-related options that will be applied during the animation\n *\n * * `event` - The DOM event (e.g. enter, leave, move). When used, a generated CSS class of `ng-EVENT` and `ng-EVENT-active` will be applied\n * to the element during the animation. Multiple events can be provided when spaces are used as a separator. (Note that this will not perform any DOM operation.)\n * * `structural` - Indicates that the `ng-` prefix will be added to the event class. Setting to `false` or omitting will turn `ng-EVENT` and\n * `ng-EVENT-active` in `EVENT` and `EVENT-active`. Unused if `event` is omitted.\n * * `easing` - The CSS easing value that will be applied to the transition or keyframe animation (or both).\n * * `transitionStyle` - The raw CSS transition style that will be used (e.g. `1s linear all`).\n * * `keyframeStyle` - The raw CSS keyframe animation style that will be used (e.g. `1s my_animation linear`).\n * * `from` - The starting CSS styles (a key/value object) that will be applied at the start of the animation.\n * * `to` - The ending CSS styles (a key/value object) that will be applied across the animation via a CSS transition.\n * * `addClass` - A space separated list of CSS classes that will be added to the element and spread across the animation.\n * * `removeClass` - A space separated list of CSS classes that will be removed from the element and spread across the animation.\n * * `duration` - A number value representing the total duration of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `0`\n * is provided then the animation will be skipped entirely.\n * * `delay` - A number value representing the total delay of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `true` is\n * used then whatever delay value is detected from the CSS classes will be mirrored on the elements styles (e.g. by setting delay true then the style value\n * of the element will be `transition-delay: DETECTED_VALUE`). Using `true` is useful when you want the CSS classes and inline styles to all share the same\n * CSS delay value.\n * * `stagger` - A numeric time value representing the delay between successively animated elements\n * ({@link ngAnimate#css-staggering-animations Click here to learn how CSS-based staggering works in ngAnimate.})\n * * `staggerIndex` - The numeric index representing the stagger item (e.g. a value of 5 is equal to the sixth item in the stagger; therefore when a\n *   `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)\n * * `applyClassesEarly` - Whether or not the classes being added or removed will be used when detecting the animation. This is set by `$animate` when enter/leave/move animations are fired to ensure that the CSS classes are resolved in time. (Note that this will prevent any transitions from occurring on the classes being added and removed.)\n * * `cleanupStyles` - Whether or not the provided `from` and `to` styles will be removed once\n *    the animation is closed. This is useful for when the styles are used purely for the sake of\n *    the animation and do not have a lasting visual effect on the element (e.g. a collapse and open animation).\n *    By default this value is set to `false`.\n *\n * @return {object} an object with start and end methods and details about the animation.\n *\n * * `start` - The method to start the animation. This will return a `Promise` when called.\n * * `end` - This method will cancel the animation and remove all applied CSS classes and styles.\n */\nvar ONE_SECOND = 1000;\n\nvar ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\nvar CLOSING_TIME_BUFFER = 1.5;\n\nvar DETECT_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  transitionProperty:      TRANSITION_PROP + PROPERTY_KEY,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP,\n  animationIterationCount: ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY\n};\n\nvar DETECT_STAGGER_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP\n};\n\nfunction getCssKeyframeDurationStyle(duration) {\n  return [ANIMATION_DURATION_PROP, duration + 's'];\n}\n\nfunction getCssDelayStyle(delay, isKeyframeAnimation) {\n  var prop = isKeyframeAnimation ? ANIMATION_DELAY_PROP : TRANSITION_DELAY_PROP;\n  return [prop, delay + 's'];\n}\n\nfunction computeCssStyles($window, element, properties) {\n  var styles = Object.create(null);\n  var detectedStyles = $window.getComputedStyle(element) || {};\n  forEach(properties, function(formalStyleName, actualStyleName) {\n    var val = detectedStyles[formalStyleName];\n    if (val) {\n      var c = val.charAt(0);\n\n      // only numerical-based values have a negative sign or digit as the first value\n      if (c === '-' || c === '+' || c >= 0) {\n        val = parseMaxTime(val);\n      }\n\n      // by setting this to null in the event that the delay is not set or is set directly as 0\n      // then we can still allow for negative values to be used later on and not mistake this\n      // value for being greater than any other negative value.\n      if (val === 0) {\n        val = null;\n      }\n      styles[actualStyleName] = val;\n    }\n  });\n\n  return styles;\n}\n\nfunction parseMaxTime(str) {\n  var maxValue = 0;\n  var values = str.split(/\\s*,\\s*/);\n  forEach(values, function(value) {\n    // it's always safe to consider only second values and omit `ms` values since\n    // getComputedStyle will always handle the conversion for us\n    if (value.charAt(value.length - 1) === 's') {\n      value = value.substring(0, value.length - 1);\n    }\n    value = parseFloat(value) || 0;\n    maxValue = maxValue ? Math.max(value, maxValue) : value;\n  });\n  return maxValue;\n}\n\nfunction truthyTimingValue(val) {\n  return val === 0 || val != null;\n}\n\nfunction getCssTransitionDurationStyle(duration, applyOnlyDuration) {\n  var style = TRANSITION_PROP;\n  var value = duration + 's';\n  if (applyOnlyDuration) {\n    style += DURATION_KEY;\n  } else {\n    value += ' linear all';\n  }\n  return [style, value];\n}\n\n// we do not reassign an already present style value since\n// if we detect the style property value again we may be\n// detecting styles that were added via the `from` styles.\n// We make use of `isDefined` here since an empty string\n// or null value (which is what getPropertyValue will return\n// for a non-existing style) will still be marked as a valid\n// value for the style (a falsy value implies that the style\n// is to be removed at the end of the animation). If we had a simple\n// \"OR\" statement then it would not be enough to catch that.\nfunction registerRestorableStyles(backup, node, properties) {\n  forEach(properties, function(prop) {\n    backup[prop] = isDefined(backup[prop])\n        ? backup[prop]\n        : node.style.getPropertyValue(prop);\n  });\n}\n\nvar $AnimateCssProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n\n  this.$get = ['$window', '$$jqLite', '$$AnimateRunner', '$timeout', '$$animateCache',\n               '$$forceReflow', '$sniffer', '$$rAFScheduler', '$$animateQueue',\n       function($window,   $$jqLite,   $$AnimateRunner,   $timeout,   $$animateCache,\n                $$forceReflow,   $sniffer,   $$rAFScheduler, $$animateQueue) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function computeCachedCssStyles(node, className, cacheKey, allowNoDuration, properties) {\n      var timings = $$animateCache.get(cacheKey);\n\n      if (!timings) {\n        timings = computeCssStyles($window, node, properties);\n        if (timings.animationIterationCount === 'infinite') {\n          timings.animationIterationCount = 1;\n        }\n      }\n\n      // if a css animation has no duration we\n      // should mark that so that repeated addClass/removeClass calls are skipped\n      var hasDuration = allowNoDuration || (timings.transitionDuration > 0 || timings.animationDuration > 0);\n\n      // we keep putting this in multiple times even though the value and the cacheKey are the same\n      // because we're keeping an internal tally of how many duplicate animations are detected.\n      $$animateCache.put(cacheKey, timings, hasDuration);\n\n      return timings;\n    }\n\n    function computeCachedCssStaggerStyles(node, className, cacheKey, properties) {\n      var stagger;\n      var staggerCacheKey = 'stagger-' + cacheKey;\n\n      // if we have one or more existing matches of matching elements\n      // containing the same parent + CSS styles (which is how cacheKey works)\n      // then staggering is possible\n      if ($$animateCache.count(cacheKey) > 0) {\n        stagger = $$animateCache.get(staggerCacheKey);\n\n        if (!stagger) {\n          var staggerClassName = pendClasses(className, '-stagger');\n\n          $$jqLite.addClass(node, staggerClassName);\n\n          stagger = computeCssStyles($window, node, properties);\n\n          // force the conversion of a null value to zero incase not set\n          stagger.animationDuration = Math.max(stagger.animationDuration, 0);\n          stagger.transitionDuration = Math.max(stagger.transitionDuration, 0);\n\n          $$jqLite.removeClass(node, staggerClassName);\n\n          $$animateCache.put(staggerCacheKey, stagger, true);\n        }\n      }\n\n      return stagger || {};\n    }\n\n    var rafWaitQueue = [];\n    function waitUntilQuiet(callback) {\n      rafWaitQueue.push(callback);\n      $$rAFScheduler.waitUntilQuiet(function() {\n        $$animateCache.flush();\n\n        // DO NOT REMOVE THIS LINE OR REFACTOR OUT THE `pageWidth` variable.\n        // PLEASE EXAMINE THE `$$forceReflow` service to understand why.\n        var pageWidth = $$forceReflow();\n\n        // we use a for loop to ensure that if the queue is changed\n        // during this looping then it will consider new requests\n        for (var i = 0; i < rafWaitQueue.length; i++) {\n          rafWaitQueue[i](pageWidth);\n        }\n        rafWaitQueue.length = 0;\n      });\n    }\n\n    function computeTimings(node, className, cacheKey, allowNoDuration) {\n      var timings = computeCachedCssStyles(node, className, cacheKey, allowNoDuration, DETECT_CSS_PROPERTIES);\n      var aD = timings.animationDelay;\n      var tD = timings.transitionDelay;\n      timings.maxDelay = aD && tD\n          ? Math.max(aD, tD)\n          : (aD || tD);\n      timings.maxDuration = Math.max(\n          timings.animationDuration * timings.animationIterationCount,\n          timings.transitionDuration);\n\n      return timings;\n    }\n\n    return function init(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = prepareAnimationOptions(copy(options));\n      }\n\n      var restoreStyles = {};\n      var node = getDomNode(element);\n      if (!node\n          || !node.parentNode\n          || !$$animateQueue.enabled()) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var temporaryStyles = [];\n      var classes = element.attr('class');\n      var styles = packageStyles(options);\n      var animationClosed;\n      var animationPaused;\n      var animationCompleted;\n      var runner;\n      var runnerHost;\n      var maxDelay;\n      var maxDelayTime;\n      var maxDuration;\n      var maxDurationTime;\n      var startTime;\n      var events = [];\n\n      if (options.duration === 0 || (!$sniffer.animations && !$sniffer.transitions)) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var method = options.event && isArray(options.event)\n            ? options.event.join(' ')\n            : options.event;\n\n      var isStructural = method && options.structural;\n      var structuralClassName = '';\n      var addRemoveClassName = '';\n\n      if (isStructural) {\n        structuralClassName = pendClasses(method, EVENT_CLASS_PREFIX, true);\n      } else if (method) {\n        structuralClassName = method;\n      }\n\n      if (options.addClass) {\n        addRemoveClassName += pendClasses(options.addClass, ADD_CLASS_SUFFIX);\n      }\n\n      if (options.removeClass) {\n        if (addRemoveClassName.length) {\n          addRemoveClassName += ' ';\n        }\n        addRemoveClassName += pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX);\n      }\n\n      // there may be a situation where a structural animation is combined together\n      // with CSS classes that need to resolve before the animation is computed.\n      // However this means that there is no explicit CSS code to block the animation\n      // from happening (by setting 0s none in the class name). If this is the case\n      // we need to apply the classes before the first rAF so we know to continue if\n      // there actually is a detected transition or keyframe animation\n      if (options.applyClassesEarly && addRemoveClassName.length) {\n        applyAnimationClasses(element, options);\n      }\n\n      var preparationClasses = [structuralClassName, addRemoveClassName].join(' ').trim();\n      var fullClassName = classes + ' ' + preparationClasses;\n      var hasToStyles = styles.to && Object.keys(styles.to).length > 0;\n      var containsKeyframeAnimation = (options.keyframeStyle || '').length > 0;\n\n      // there is no way we can trigger an animation if no styles and\n      // no classes are being applied which would then trigger a transition,\n      // unless there a is raw keyframe value that is applied to the element.\n      if (!containsKeyframeAnimation\n           && !hasToStyles\n           && !preparationClasses) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var stagger, cacheKey = $$animateCache.cacheKey(node, method, options.addClass, options.removeClass);\n      if ($$animateCache.containsCachedAnimationWithoutDuration(cacheKey)) {\n        preparationClasses = null;\n        return closeAndReturnNoopAnimator();\n      }\n\n      if (options.stagger > 0) {\n        var staggerVal = parseFloat(options.stagger);\n        stagger = {\n          transitionDelay: staggerVal,\n          animationDelay: staggerVal,\n          transitionDuration: 0,\n          animationDuration: 0\n        };\n      } else {\n        stagger = computeCachedCssStaggerStyles(node, preparationClasses, cacheKey, DETECT_STAGGER_CSS_PROPERTIES);\n      }\n\n      if (!options.$$skipPreparationClasses) {\n        $$jqLite.addClass(element, preparationClasses);\n      }\n\n      var applyOnlyDuration;\n\n      if (options.transitionStyle) {\n        var transitionStyle = [TRANSITION_PROP, options.transitionStyle];\n        applyInlineStyle(node, transitionStyle);\n        temporaryStyles.push(transitionStyle);\n      }\n\n      if (options.duration >= 0) {\n        applyOnlyDuration = node.style[TRANSITION_PROP].length > 0;\n        var durationStyle = getCssTransitionDurationStyle(options.duration, applyOnlyDuration);\n\n        // we set the duration so that it will be picked up by getComputedStyle later\n        applyInlineStyle(node, durationStyle);\n        temporaryStyles.push(durationStyle);\n      }\n\n      if (options.keyframeStyle) {\n        var keyframeStyle = [ANIMATION_PROP, options.keyframeStyle];\n        applyInlineStyle(node, keyframeStyle);\n        temporaryStyles.push(keyframeStyle);\n      }\n\n      var itemIndex = stagger\n          ? options.staggerIndex >= 0\n              ? options.staggerIndex\n              : $$animateCache.count(cacheKey)\n          : 0;\n\n      var isFirst = itemIndex === 0;\n\n      // this is a pre-emptive way of forcing the setup classes to be added and applied INSTANTLY\n      // without causing any combination of transitions to kick in. By adding a negative delay value\n      // it forces the setup class' transition to end immediately. We later then remove the negative\n      // transition delay to allow for the transition to naturally do it's thing. The beauty here is\n      // that if there is no transition defined then nothing will happen and this will also allow\n      // other transitions to be stacked on top of each other without any chopping them out.\n      if (isFirst && !options.skipBlocking) {\n        helpers.blockTransitions(node, SAFE_FAST_FORWARD_DURATION_VALUE);\n      }\n\n      var timings = computeTimings(node, fullClassName, cacheKey, !isStructural);\n      var relativeDelay = timings.maxDelay;\n      maxDelay = Math.max(relativeDelay, 0);\n      maxDuration = timings.maxDuration;\n\n      var flags = {};\n      flags.hasTransitions          = timings.transitionDuration > 0;\n      flags.hasAnimations           = timings.animationDuration > 0;\n      flags.hasTransitionAll        = flags.hasTransitions && timings.transitionProperty === 'all';\n      flags.applyTransitionDuration = hasToStyles && (\n                                        (flags.hasTransitions && !flags.hasTransitionAll)\n                                         || (flags.hasAnimations && !flags.hasTransitions));\n      flags.applyAnimationDuration  = options.duration && flags.hasAnimations;\n      flags.applyTransitionDelay    = truthyTimingValue(options.delay) && (flags.applyTransitionDuration || flags.hasTransitions);\n      flags.applyAnimationDelay     = truthyTimingValue(options.delay) && flags.hasAnimations;\n      flags.recalculateTimingStyles = addRemoveClassName.length > 0;\n\n      if (flags.applyTransitionDuration || flags.applyAnimationDuration) {\n        maxDuration = options.duration ? parseFloat(options.duration) : maxDuration;\n\n        if (flags.applyTransitionDuration) {\n          flags.hasTransitions = true;\n          timings.transitionDuration = maxDuration;\n          applyOnlyDuration = node.style[TRANSITION_PROP + PROPERTY_KEY].length > 0;\n          temporaryStyles.push(getCssTransitionDurationStyle(maxDuration, applyOnlyDuration));\n        }\n\n        if (flags.applyAnimationDuration) {\n          flags.hasAnimations = true;\n          timings.animationDuration = maxDuration;\n          temporaryStyles.push(getCssKeyframeDurationStyle(maxDuration));\n        }\n      }\n\n      if (maxDuration === 0 && !flags.recalculateTimingStyles) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var activeClasses = pendClasses(preparationClasses, ACTIVE_CLASS_SUFFIX);\n\n      if (options.delay != null) {\n        var delayStyle;\n        if (typeof options.delay !== 'boolean') {\n          delayStyle = parseFloat(options.delay);\n          // number in options.delay means we have to recalculate the delay for the closing timeout\n          maxDelay = Math.max(delayStyle, 0);\n        }\n\n        if (flags.applyTransitionDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle));\n        }\n\n        if (flags.applyAnimationDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle, true));\n        }\n      }\n\n      // we need to recalculate the delay value since we used a pre-emptive negative\n      // delay value and the delay value is required for the final event checking. This\n      // property will ensure that this will happen after the RAF phase has passed.\n      if (options.duration == null && timings.transitionDuration > 0) {\n        flags.recalculateTimingStyles = flags.recalculateTimingStyles || isFirst;\n      }\n\n      maxDelayTime = maxDelay * ONE_SECOND;\n      maxDurationTime = maxDuration * ONE_SECOND;\n      if (!options.skipBlocking) {\n        flags.blockTransition = timings.transitionDuration > 0;\n        flags.blockKeyframeAnimation = timings.animationDuration > 0 &&\n                                       stagger.animationDelay > 0 &&\n                                       stagger.animationDuration === 0;\n      }\n\n      if (options.from) {\n        if (options.cleanupStyles) {\n          registerRestorableStyles(restoreStyles, node, Object.keys(options.from));\n        }\n        applyAnimationFromStyles(element, options);\n      }\n\n      if (flags.blockTransition || flags.blockKeyframeAnimation) {\n        applyBlocking(maxDuration);\n      } else if (!options.skipBlocking) {\n        helpers.blockTransitions(node, false);\n      }\n\n      // TODO(matsko): for 1.5 change this code to have an animator object for better debugging\n      return {\n        $$willAnimate: true,\n        end: endFn,\n        start: function() {\n          if (animationClosed) return;\n\n          runnerHost = {\n            end: endFn,\n            cancel: cancelFn,\n            resume: null, //this will be set during the start() phase\n            pause: null\n          };\n\n          runner = new $$AnimateRunner(runnerHost);\n\n          waitUntilQuiet(start);\n\n          // we don't have access to pause/resume the animation\n          // since it hasn't run yet. AnimateRunner will therefore\n          // set noop functions for resume and pause and they will\n          // later be overridden once the animation is triggered\n          return runner;\n        }\n      };\n\n      function endFn() {\n        close();\n      }\n\n      function cancelFn() {\n        close(true);\n      }\n\n      function close(rejected) {\n        // if the promise has been called already then we shouldn't close\n        // the animation again\n        if (animationClosed || (animationCompleted && animationPaused)) return;\n        animationClosed = true;\n        animationPaused = false;\n\n        if (preparationClasses && !options.$$skipPreparationClasses) {\n          $$jqLite.removeClass(element, preparationClasses);\n        }\n\n        if (activeClasses) {\n          $$jqLite.removeClass(element, activeClasses);\n        }\n\n        blockKeyframeAnimations(node, false);\n        helpers.blockTransitions(node, false);\n\n        forEach(temporaryStyles, function(entry) {\n          // There is only one way to remove inline style properties entirely from elements.\n          // By using `removeProperty` this works, but we need to convert camel-cased CSS\n          // styles down to hyphenated values.\n          node.style[entry[0]] = '';\n        });\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n\n        if (Object.keys(restoreStyles).length) {\n          forEach(restoreStyles, function(value, prop) {\n            if (value) {\n              node.style.setProperty(prop, value);\n            } else {\n              node.style.removeProperty(prop);\n            }\n          });\n        }\n\n        // the reason why we have this option is to allow a synchronous closing callback\n        // that is fired as SOON as the animation ends (when the CSS is removed) or if\n        // the animation never takes off at all. A good example is a leave animation since\n        // the element must be removed just after the animation is over or else the element\n        // will appear on screen for one animation frame causing an overbearing flicker.\n        if (options.onDone) {\n          options.onDone();\n        }\n\n        if (events && events.length) {\n          // Remove the transitionend / animationend listener(s)\n          element.off(events.join(' '), onAnimationProgress);\n        }\n\n        //Cancel the fallback closing timeout and remove the timer data\n        var animationTimerData = element.data(ANIMATE_TIMER_KEY);\n        if (animationTimerData) {\n          $timeout.cancel(animationTimerData[0].timer);\n          element.removeData(ANIMATE_TIMER_KEY);\n        }\n\n        // if the preparation function fails then the promise is not setup\n        if (runner) {\n          runner.complete(!rejected);\n        }\n      }\n\n      function applyBlocking(duration) {\n        if (flags.blockTransition) {\n          helpers.blockTransitions(node, duration);\n        }\n\n        if (flags.blockKeyframeAnimation) {\n          blockKeyframeAnimations(node, !!duration);\n        }\n      }\n\n      function closeAndReturnNoopAnimator() {\n        runner = new $$AnimateRunner({\n          end: endFn,\n          cancel: cancelFn\n        });\n\n        // should flush the cache animation\n        waitUntilQuiet(noop);\n        close();\n\n        return {\n          $$willAnimate: false,\n          start: function() {\n            return runner;\n          },\n          end: endFn\n        };\n      }\n\n      function onAnimationProgress(event) {\n        event.stopPropagation();\n        var ev = event.originalEvent || event;\n\n        if (ev.target !== node) {\n          // Since TransitionEvent / AnimationEvent bubble up,\n          // we have to ignore events by finished child animations\n          return;\n        }\n\n        // we now always use `Date.now()` due to the recent changes with\n        // event.timeStamp in Firefox, Webkit and Chrome (see #13494 for more info)\n        var timeStamp = ev.$manualTimeStamp || Date.now();\n\n        /* Firefox (or possibly just Gecko) likes to not round values up\n         * when a ms measurement is used for the animation */\n        var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));\n\n        /* $manualTimeStamp is a mocked timeStamp value which is set\n         * within browserTrigger(). This is only here so that tests can\n         * mock animations properly. Real events fallback to event.timeStamp,\n         * or, if they don't, then a timeStamp is automatically created for them.\n         * We're checking to see if the timeStamp surpasses the expected delay,\n         * but we're using elapsedTime instead of the timeStamp on the 2nd\n         * pre-condition since animationPauseds sometimes close off early */\n        if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n          // we set this flag to ensure that if the transition is paused then, when resumed,\n          // the animation will automatically close itself since transitions cannot be paused.\n          animationCompleted = true;\n          close();\n        }\n      }\n\n      function start() {\n        if (animationClosed) return;\n        if (!node.parentNode) {\n          close();\n          return;\n        }\n\n        // even though we only pause keyframe animations here the pause flag\n        // will still happen when transitions are used. Only the transition will\n        // not be paused since that is not possible. If the animation ends when\n        // paused then it will not complete until unpaused or cancelled.\n        var playPause = function(playAnimation) {\n          if (!animationCompleted) {\n            animationPaused = !playAnimation;\n            if (timings.animationDuration) {\n              var value = blockKeyframeAnimations(node, animationPaused);\n              if (animationPaused) {\n                temporaryStyles.push(value);\n              } else {\n                removeFromArray(temporaryStyles, value);\n              }\n            }\n          } else if (animationPaused && playAnimation) {\n            animationPaused = false;\n            close();\n          }\n        };\n\n        // checking the stagger duration prevents an accidentally cascade of the CSS delay style\n        // being inherited from the parent. If the transition duration is zero then we can safely\n        // rely that the delay value is an intentional stagger delay style.\n        var maxStagger = itemIndex > 0\n                         && ((timings.transitionDuration && stagger.transitionDuration === 0) ||\n                            (timings.animationDuration && stagger.animationDuration === 0))\n                         && Math.max(stagger.animationDelay, stagger.transitionDelay);\n        if (maxStagger) {\n          $timeout(triggerAnimationStart,\n                   Math.floor(maxStagger * itemIndex * ONE_SECOND),\n                   false);\n        } else {\n          triggerAnimationStart();\n        }\n\n        // this will decorate the existing promise runner with pause/resume methods\n        runnerHost.resume = function() {\n          playPause(true);\n        };\n\n        runnerHost.pause = function() {\n          playPause(false);\n        };\n\n        function triggerAnimationStart() {\n          // just incase a stagger animation kicks in when the animation\n          // itself was cancelled entirely\n          if (animationClosed) return;\n\n          applyBlocking(false);\n\n          forEach(temporaryStyles, function(entry) {\n            var key = entry[0];\n            var value = entry[1];\n            node.style[key] = value;\n          });\n\n          applyAnimationClasses(element, options);\n          $$jqLite.addClass(element, activeClasses);\n\n          if (flags.recalculateTimingStyles) {\n            fullClassName = node.getAttribute('class') + ' ' + preparationClasses;\n            cacheKey = $$animateCache.cacheKey(node, method, options.addClass, options.removeClass);\n\n            timings = computeTimings(node, fullClassName, cacheKey, false);\n            relativeDelay = timings.maxDelay;\n            maxDelay = Math.max(relativeDelay, 0);\n            maxDuration = timings.maxDuration;\n\n            if (maxDuration === 0) {\n              close();\n              return;\n            }\n\n            flags.hasTransitions = timings.transitionDuration > 0;\n            flags.hasAnimations = timings.animationDuration > 0;\n          }\n\n          if (flags.applyAnimationDelay) {\n            relativeDelay = typeof options.delay !== 'boolean' && truthyTimingValue(options.delay)\n                  ? parseFloat(options.delay)\n                  : relativeDelay;\n\n            maxDelay = Math.max(relativeDelay, 0);\n            timings.animationDelay = relativeDelay;\n            delayStyle = getCssDelayStyle(relativeDelay, true);\n            temporaryStyles.push(delayStyle);\n            node.style[delayStyle[0]] = delayStyle[1];\n          }\n\n          maxDelayTime = maxDelay * ONE_SECOND;\n          maxDurationTime = maxDuration * ONE_SECOND;\n\n          if (options.easing) {\n            var easeProp, easeVal = options.easing;\n            if (flags.hasTransitions) {\n              easeProp = TRANSITION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n            if (flags.hasAnimations) {\n              easeProp = ANIMATION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n          }\n\n          if (timings.transitionDuration) {\n            events.push(TRANSITIONEND_EVENT);\n          }\n\n          if (timings.animationDuration) {\n            events.push(ANIMATIONEND_EVENT);\n          }\n\n          startTime = Date.now();\n          var timerTime = maxDelayTime + CLOSING_TIME_BUFFER * maxDurationTime;\n          var endTime = startTime + timerTime;\n\n          var animationsData = element.data(ANIMATE_TIMER_KEY) || [];\n          var setupFallbackTimer = true;\n          if (animationsData.length) {\n            var currentTimerData = animationsData[0];\n            setupFallbackTimer = endTime > currentTimerData.expectedEndTime;\n            if (setupFallbackTimer) {\n              $timeout.cancel(currentTimerData.timer);\n            } else {\n              animationsData.push(close);\n            }\n          }\n\n          if (setupFallbackTimer) {\n            var timer = $timeout(onAnimationExpired, timerTime, false);\n            animationsData[0] = {\n              timer: timer,\n              expectedEndTime: endTime\n            };\n            animationsData.push(close);\n            element.data(ANIMATE_TIMER_KEY, animationsData);\n          }\n\n          if (events.length) {\n            element.on(events.join(' '), onAnimationProgress);\n          }\n\n          if (options.to) {\n            if (options.cleanupStyles) {\n              registerRestorableStyles(restoreStyles, node, Object.keys(options.to));\n            }\n            applyAnimationToStyles(element, options);\n          }\n        }\n\n        function onAnimationExpired() {\n          var animationsData = element.data(ANIMATE_TIMER_KEY);\n\n          // this will be false in the event that the element was\n          // removed from the DOM (via a leave animation or something\n          // similar)\n          if (animationsData) {\n            for (var i = 1; i < animationsData.length; i++) {\n              animationsData[i]();\n            }\n            element.removeData(ANIMATE_TIMER_KEY);\n          }\n        }\n      }\n    };\n  }];\n}];\n\nvar $$AnimateCssDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateCssDriver');\n\n  var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';\n  var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';\n\n  var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';\n  var NG_IN_ANCHOR_CLASS_NAME = 'ng-anchor-in';\n\n  function isDocumentFragment(node) {\n    return node.parentNode && node.parentNode.nodeType === 11;\n  }\n\n  this.$get = ['$animateCss', '$rootScope', '$$AnimateRunner', '$rootElement', '$sniffer', '$$jqLite', '$document',\n       function($animateCss,   $rootScope,   $$AnimateRunner,   $rootElement,   $sniffer,   $$jqLite,   $document) {\n\n    // only browsers that support these properties can render animations\n    if (!$sniffer.animations && !$sniffer.transitions) return noop;\n\n    var bodyNode = $document[0].body;\n    var rootNode = getDomNode($rootElement);\n\n    var rootBodyElement = jqLite(\n      // this is to avoid using something that exists outside of the body\n      // we also special case the doc fragment case because our unit test code\n      // appends the $rootElement to the body after the app has been bootstrapped\n      isDocumentFragment(rootNode) || bodyNode.contains(rootNode) ? rootNode : bodyNode\n    );\n\n    return function initDriverFn(animationDetails) {\n      return animationDetails.from && animationDetails.to\n          ? prepareFromToAnchorAnimation(animationDetails.from,\n                                         animationDetails.to,\n                                         animationDetails.classes,\n                                         animationDetails.anchors)\n          : prepareRegularAnimation(animationDetails);\n    };\n\n    function filterCssClasses(classes) {\n      //remove all the `ng-` stuff\n      return classes.replace(/\\bng-\\S+\\b/g, '');\n    }\n\n    function getUniqueValues(a, b) {\n      if (isString(a)) a = a.split(' ');\n      if (isString(b)) b = b.split(' ');\n      return a.filter(function(val) {\n        return b.indexOf(val) === -1;\n      }).join(' ');\n    }\n\n    function prepareAnchoredAnimation(classes, outAnchor, inAnchor) {\n      var clone = jqLite(getDomNode(outAnchor).cloneNode(true));\n      var startingClasses = filterCssClasses(getClassVal(clone));\n\n      outAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      inAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n\n      clone.addClass(NG_ANIMATE_ANCHOR_CLASS_NAME);\n\n      rootBodyElement.append(clone);\n\n      var animatorIn, animatorOut = prepareOutAnimation();\n\n      // the user may not end up using the `out` animation and\n      // only making use of the `in` animation or vice-versa.\n      // In either case we should allow this and not assume the\n      // animation is over unless both animations are not used.\n      if (!animatorOut) {\n        animatorIn = prepareInAnimation();\n        if (!animatorIn) {\n          return end();\n        }\n      }\n\n      var startingAnimator = animatorOut || animatorIn;\n\n      return {\n        start: function() {\n          var runner;\n\n          var currentAnimation = startingAnimator.start();\n          currentAnimation.done(function() {\n            currentAnimation = null;\n            if (!animatorIn) {\n              animatorIn = prepareInAnimation();\n              if (animatorIn) {\n                currentAnimation = animatorIn.start();\n                currentAnimation.done(function() {\n                  currentAnimation = null;\n                  end();\n                  runner.complete();\n                });\n                return currentAnimation;\n              }\n            }\n            // in the event that there is no `in` animation\n            end();\n            runner.complete();\n          });\n\n          runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn\n          });\n\n          return runner;\n\n          function endFn() {\n            if (currentAnimation) {\n              currentAnimation.end();\n            }\n          }\n        }\n      };\n\n      function calculateAnchorStyles(anchor) {\n        var styles = {};\n\n        var coords = getDomNode(anchor).getBoundingClientRect();\n\n        // we iterate directly since safari messes up and doesn't return\n        // all the keys for the coords object when iterated\n        forEach(['width','height','top','left'], function(key) {\n          var value = coords[key];\n          switch (key) {\n            case 'top':\n              value += bodyNode.scrollTop;\n              break;\n            case 'left':\n              value += bodyNode.scrollLeft;\n              break;\n          }\n          styles[key] = Math.floor(value) + 'px';\n        });\n        return styles;\n      }\n\n      function prepareOutAnimation() {\n        var animator = $animateCss(clone, {\n          addClass: NG_OUT_ANCHOR_CLASS_NAME,\n          delay: true,\n          from: calculateAnchorStyles(outAnchor)\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function getClassVal(element) {\n        return element.attr('class') || '';\n      }\n\n      function prepareInAnimation() {\n        var endingClasses = filterCssClasses(getClassVal(inAnchor));\n        var toAdd = getUniqueValues(endingClasses, startingClasses);\n        var toRemove = getUniqueValues(startingClasses, endingClasses);\n\n        var animator = $animateCss(clone, {\n          to: calculateAnchorStyles(inAnchor),\n          addClass: NG_IN_ANCHOR_CLASS_NAME + ' ' + toAdd,\n          removeClass: NG_OUT_ANCHOR_CLASS_NAME + ' ' + toRemove,\n          delay: true\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function end() {\n        clone.remove();\n        outAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n        inAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      }\n    }\n\n    function prepareFromToAnchorAnimation(from, to, classes, anchors) {\n      var fromAnimation = prepareRegularAnimation(from, noop);\n      var toAnimation = prepareRegularAnimation(to, noop);\n\n      var anchorAnimations = [];\n      forEach(anchors, function(anchor) {\n        var outElement = anchor['out'];\n        var inElement = anchor['in'];\n        var animator = prepareAnchoredAnimation(classes, outElement, inElement);\n        if (animator) {\n          anchorAnimations.push(animator);\n        }\n      });\n\n      // no point in doing anything when there are no elements to animate\n      if (!fromAnimation && !toAnimation && anchorAnimations.length === 0) return;\n\n      return {\n        start: function() {\n          var animationRunners = [];\n\n          if (fromAnimation) {\n            animationRunners.push(fromAnimation.start());\n          }\n\n          if (toAnimation) {\n            animationRunners.push(toAnimation.start());\n          }\n\n          forEach(anchorAnimations, function(animation) {\n            animationRunners.push(animation.start());\n          });\n\n          var runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn // CSS-driven animations cannot be cancelled, only ended\n          });\n\n          $$AnimateRunner.all(animationRunners, function(status) {\n            runner.complete(status);\n          });\n\n          return runner;\n\n          function endFn() {\n            forEach(animationRunners, function(runner) {\n              runner.end();\n            });\n          }\n        }\n      };\n    }\n\n    function prepareRegularAnimation(animationDetails) {\n      var element = animationDetails.element;\n      var options = animationDetails.options || {};\n\n      if (animationDetails.structural) {\n        options.event = animationDetails.event;\n        options.structural = true;\n        options.applyClassesEarly = true;\n\n        // we special case the leave animation since we want to ensure that\n        // the element is removed as soon as the animation is over. Otherwise\n        // a flicker might appear or the element may not be removed at all\n        if (animationDetails.event === 'leave') {\n          options.onDone = options.domOperation;\n        }\n      }\n\n      // We assign the preparationClasses as the actual animation event since\n      // the internals of $animateCss will just suffix the event token values\n      // with `-active` to trigger the animation.\n      if (options.preparationClasses) {\n        options.event = concatWithSpace(options.event, options.preparationClasses);\n      }\n\n      var animator = $animateCss(element, options);\n\n      // the driver lookup code inside of $$animation attempts to spawn a\n      // driver one by one until a driver returns a.$$willAnimate animator object.\n      // $animateCss will always return an object, however, it will pass in\n      // a flag as a hint as to whether an animation was detected or not\n      return animator.$$willAnimate ? animator : null;\n    }\n  }];\n}];\n\n// TODO(matsko): use caching here to speed things up for detection\n// TODO(matsko): add documentation\n//  by the time...\n\nvar $$AnimateJsProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  this.$get = ['$injector', '$$AnimateRunner', '$$jqLite',\n       function($injector,   $$AnimateRunner,   $$jqLite) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n         // $animateJs(element, 'enter');\n    return function(element, event, classes, options) {\n      var animationClosed = false;\n\n      // the `classes` argument is optional and if it is not used\n      // then the classes will be resolved from the element's className\n      // property as well as options.addClass/options.removeClass.\n      if (arguments.length === 3 && isObject(classes)) {\n        options = classes;\n        classes = null;\n      }\n\n      options = prepareAnimationOptions(options);\n      if (!classes) {\n        classes = element.attr('class') || '';\n        if (options.addClass) {\n          classes += ' ' + options.addClass;\n        }\n        if (options.removeClass) {\n          classes += ' ' + options.removeClass;\n        }\n      }\n\n      var classesToAdd = options.addClass;\n      var classesToRemove = options.removeClass;\n\n      // the lookupAnimations function returns a series of animation objects that are\n      // matched up with one or more of the CSS classes. These animation objects are\n      // defined via the module.animation factory function. If nothing is detected then\n      // we don't return anything which then makes $animation query the next driver.\n      var animations = lookupAnimations(classes);\n      var before, after;\n      if (animations.length) {\n        var afterFn, beforeFn;\n        if (event === 'leave') {\n          beforeFn = 'leave';\n          afterFn = 'afterLeave'; // TODO(matsko): get rid of this\n        } else {\n          beforeFn = 'before' + event.charAt(0).toUpperCase() + event.substr(1);\n          afterFn = event;\n        }\n\n        if (event !== 'enter' && event !== 'move') {\n          before = packageAnimations(element, event, options, animations, beforeFn);\n        }\n        after  = packageAnimations(element, event, options, animations, afterFn);\n      }\n\n      // no matching animations\n      if (!before && !after) return;\n\n      function applyOptions() {\n        options.domOperation();\n        applyAnimationClasses(element, options);\n      }\n\n      function close() {\n        animationClosed = true;\n        applyOptions();\n        applyAnimationStyles(element, options);\n      }\n\n      var runner;\n\n      return {\n        $$willAnimate: true,\n        end: function() {\n          if (runner) {\n            runner.end();\n          } else {\n            close();\n            runner = new $$AnimateRunner();\n            runner.complete(true);\n          }\n          return runner;\n        },\n        start: function() {\n          if (runner) {\n            return runner;\n          }\n\n          runner = new $$AnimateRunner();\n          var closeActiveAnimations;\n          var chain = [];\n\n          if (before) {\n            chain.push(function(fn) {\n              closeActiveAnimations = before(fn);\n            });\n          }\n\n          if (chain.length) {\n            chain.push(function(fn) {\n              applyOptions();\n              fn(true);\n            });\n          } else {\n            applyOptions();\n          }\n\n          if (after) {\n            chain.push(function(fn) {\n              closeActiveAnimations = after(fn);\n            });\n          }\n\n          runner.setHost({\n            end: function() {\n              endAnimations();\n            },\n            cancel: function() {\n              endAnimations(true);\n            }\n          });\n\n          $$AnimateRunner.chain(chain, onComplete);\n          return runner;\n\n          function onComplete(success) {\n            close(success);\n            runner.complete(success);\n          }\n\n          function endAnimations(cancelled) {\n            if (!animationClosed) {\n              (closeActiveAnimations || noop)(cancelled);\n              onComplete(cancelled);\n            }\n          }\n        }\n      };\n\n      function executeAnimationFn(fn, element, event, options, onDone) {\n        var args;\n        switch (event) {\n          case 'animate':\n            args = [element, options.from, options.to, onDone];\n            break;\n\n          case 'setClass':\n            args = [element, classesToAdd, classesToRemove, onDone];\n            break;\n\n          case 'addClass':\n            args = [element, classesToAdd, onDone];\n            break;\n\n          case 'removeClass':\n            args = [element, classesToRemove, onDone];\n            break;\n\n          default:\n            args = [element, onDone];\n            break;\n        }\n\n        args.push(options);\n\n        var value = fn.apply(fn, args);\n        if (value) {\n          if (isFunction(value.start)) {\n            value = value.start();\n          }\n\n          if (value instanceof $$AnimateRunner) {\n            value.done(onDone);\n          } else if (isFunction(value)) {\n            // optional onEnd / onCancel callback\n            return value;\n          }\n        }\n\n        return noop;\n      }\n\n      function groupEventedAnimations(element, event, options, animations, fnName) {\n        var operations = [];\n        forEach(animations, function(ani) {\n          var animation = ani[fnName];\n          if (!animation) return;\n\n          // note that all of these animations will run in parallel\n          operations.push(function() {\n            var runner;\n            var endProgressCb;\n\n            var resolved = false;\n            var onAnimationComplete = function(rejected) {\n              if (!resolved) {\n                resolved = true;\n                (endProgressCb || noop)(rejected);\n                runner.complete(!rejected);\n              }\n            };\n\n            runner = new $$AnimateRunner({\n              end: function() {\n                onAnimationComplete();\n              },\n              cancel: function() {\n                onAnimationComplete(true);\n              }\n            });\n\n            endProgressCb = executeAnimationFn(animation, element, event, options, function(result) {\n              var cancelled = result === false;\n              onAnimationComplete(cancelled);\n            });\n\n            return runner;\n          });\n        });\n\n        return operations;\n      }\n\n      function packageAnimations(element, event, options, animations, fnName) {\n        var operations = groupEventedAnimations(element, event, options, animations, fnName);\n        if (operations.length === 0) {\n          var a, b;\n          if (fnName === 'beforeSetClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'beforeRemoveClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'beforeAddClass');\n          } else if (fnName === 'setClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'removeClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'addClass');\n          }\n\n          if (a) {\n            operations = operations.concat(a);\n          }\n          if (b) {\n            operations = operations.concat(b);\n          }\n        }\n\n        if (operations.length === 0) return;\n\n        // TODO(matsko): add documentation\n        return function startAnimation(callback) {\n          var runners = [];\n          if (operations.length) {\n            forEach(operations, function(animateFn) {\n              runners.push(animateFn());\n            });\n          }\n\n          if (runners.length) {\n            $$AnimateRunner.all(runners, callback);\n          }  else {\n            callback();\n          }\n\n          return function endFn(reject) {\n            forEach(runners, function(runner) {\n              if (reject) {\n                runner.cancel();\n              } else {\n                runner.end();\n              }\n            });\n          };\n        };\n      }\n    };\n\n    function lookupAnimations(classes) {\n      classes = isArray(classes) ? classes : classes.split(' ');\n      var matches = [], flagMap = {};\n      for (var i = 0; i < classes.length; i++) {\n        var klass = classes[i],\n            animationFactory = $animateProvider.$$registeredAnimations[klass];\n        if (animationFactory && !flagMap[klass]) {\n          matches.push($injector.get(animationFactory));\n          flagMap[klass] = true;\n        }\n      }\n      return matches;\n    }\n  }];\n}];\n\nvar $$AnimateJsDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateJsDriver');\n  this.$get = ['$$animateJs', '$$AnimateRunner', function($$animateJs, $$AnimateRunner) {\n    return function initDriverFn(animationDetails) {\n      if (animationDetails.from && animationDetails.to) {\n        var fromAnimation = prepareAnimation(animationDetails.from);\n        var toAnimation = prepareAnimation(animationDetails.to);\n        if (!fromAnimation && !toAnimation) return;\n\n        return {\n          start: function() {\n            var animationRunners = [];\n\n            if (fromAnimation) {\n              animationRunners.push(fromAnimation.start());\n            }\n\n            if (toAnimation) {\n              animationRunners.push(toAnimation.start());\n            }\n\n            $$AnimateRunner.all(animationRunners, done);\n\n            var runner = new $$AnimateRunner({\n              end: endFnFactory(),\n              cancel: endFnFactory()\n            });\n\n            return runner;\n\n            function endFnFactory() {\n              return function() {\n                forEach(animationRunners, function(runner) {\n                  // at this point we cannot cancel animations for groups just yet. 1.5+\n                  runner.end();\n                });\n              };\n            }\n\n            function done(status) {\n              runner.complete(status);\n            }\n          }\n        };\n      } else {\n        return prepareAnimation(animationDetails);\n      }\n    };\n\n    function prepareAnimation(animationDetails) {\n      // TODO(matsko): make sure to check for grouped animations and delegate down to normal animations\n      var element = animationDetails.element;\n      var event = animationDetails.event;\n      var options = animationDetails.options;\n      var classes = animationDetails.classes;\n      return $$animateJs(element, event, classes, options);\n    }\n  }];\n}];\n\nvar NG_ANIMATE_ATTR_NAME = 'data-ng-animate';\nvar NG_ANIMATE_PIN_DATA = '$ngAnimatePin';\nvar $$AnimateQueueProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var PRE_DIGEST_STATE = 1;\n  var RUNNING_STATE = 2;\n  var ONE_SPACE = ' ';\n\n  var rules = this.rules = {\n    skip: [],\n    cancel: [],\n    join: []\n  };\n\n  function getEventData(options) {\n    return {\n      addClass: options.addClass,\n      removeClass: options.removeClass,\n      from: options.from,\n      to: options.to\n    };\n  }\n\n  function makeTruthyCssClassMap(classString) {\n    if (!classString) {\n      return null;\n    }\n\n    var keys = classString.split(ONE_SPACE);\n    var map = Object.create(null);\n\n    forEach(keys, function(key) {\n      map[key] = true;\n    });\n    return map;\n  }\n\n  function hasMatchingClasses(newClassString, currentClassString) {\n    if (newClassString && currentClassString) {\n      var currentClassMap = makeTruthyCssClassMap(currentClassString);\n      return newClassString.split(ONE_SPACE).some(function(className) {\n        return currentClassMap[className];\n      });\n    }\n  }\n\n  function isAllowed(ruleType, currentAnimation, previousAnimation) {\n    return rules[ruleType].some(function(fn) {\n      return fn(currentAnimation, previousAnimation);\n    });\n  }\n\n  function hasAnimationClasses(animation, and) {\n    var a = (animation.addClass || '').length > 0;\n    var b = (animation.removeClass || '').length > 0;\n    return and ? a && b : a || b;\n  }\n\n  rules.join.push(function(newAnimation, currentAnimation) {\n    // if the new animation is class-based then we can just tack that on\n    return !newAnimation.structural && hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // there is no need to animate anything if no classes are being added and\n    // there is no structural animation that will be triggered\n    return !newAnimation.structural && !hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // why should we trigger a new structural animation if the element will\n    // be removed from the DOM anyway?\n    return currentAnimation.event === 'leave' && newAnimation.structural;\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // if there is an ongoing current animation then don't even bother running the class-based animation\n    return currentAnimation.structural && currentAnimation.state === RUNNING_STATE && !newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // there can never be two structural animations running at the same time\n    return currentAnimation.structural && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // if the previous animation is already running, but the new animation will\n    // be triggered, but the new animation is structural\n    return currentAnimation.state === RUNNING_STATE && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // cancel the animation if classes added / removed in both animation cancel each other out,\n    // but only if the current animation isn't structural\n\n    if (currentAnimation.structural) return false;\n\n    var nA = newAnimation.addClass;\n    var nR = newAnimation.removeClass;\n    var cA = currentAnimation.addClass;\n    var cR = currentAnimation.removeClass;\n\n    // early detection to save the global CPU shortage :)\n    if ((isUndefined(nA) && isUndefined(nR)) || (isUndefined(cA) && isUndefined(cR))) {\n      return false;\n    }\n\n    return hasMatchingClasses(nA, cR) || hasMatchingClasses(nR, cA);\n  });\n\n  this.$get = ['$$rAF', '$rootScope', '$rootElement', '$document', '$$Map',\n               '$$animation', '$$AnimateRunner', '$templateRequest', '$$jqLite', '$$forceReflow',\n               '$$isDocumentHidden',\n       function($$rAF,   $rootScope,   $rootElement,   $document,   $$Map,\n                $$animation,   $$AnimateRunner,   $templateRequest,   $$jqLite,   $$forceReflow,\n                $$isDocumentHidden) {\n\n    var activeAnimationsLookup = new $$Map();\n    var disabledElementsLookup = new $$Map();\n    var animationsEnabled = null;\n\n    function removeFromDisabledElementsLookup(evt) {\n      disabledElementsLookup.delete(evt.target);\n    }\n\n    function postDigestTaskFactory() {\n      var postDigestCalled = false;\n      return function(fn) {\n        // we only issue a call to postDigest before\n        // it has first passed. This prevents any callbacks\n        // from not firing once the animation has completed\n        // since it will be out of the digest cycle.\n        if (postDigestCalled) {\n          fn();\n        } else {\n          $rootScope.$$postDigest(function() {\n            postDigestCalled = true;\n            fn();\n          });\n        }\n      };\n    }\n\n    // Wait until all directive and route-related templates are downloaded and\n    // compiled. The $templateRequest.totalPendingRequests variable keeps track of\n    // all of the remote templates being currently downloaded. If there are no\n    // templates currently downloading then the watcher will still fire anyway.\n    var deregisterWatch = $rootScope.$watch(\n      function() { return $templateRequest.totalPendingRequests === 0; },\n      function(isEmpty) {\n        if (!isEmpty) return;\n        deregisterWatch();\n\n        // Now that all templates have been downloaded, $animate will wait until\n        // the post digest queue is empty before enabling animations. By having two\n        // calls to $postDigest calls we can ensure that the flag is enabled at the\n        // very end of the post digest queue. Since all of the animations in $animate\n        // use $postDigest, it's important that the code below executes at the end.\n        // This basically means that the page is fully downloaded and compiled before\n        // any animations are triggered.\n        $rootScope.$$postDigest(function() {\n          $rootScope.$$postDigest(function() {\n            // we check for null directly in the event that the application already called\n            // .enabled() with whatever arguments that it provided it with\n            if (animationsEnabled === null) {\n              animationsEnabled = true;\n            }\n          });\n        });\n      }\n    );\n\n    var callbackRegistry = Object.create(null);\n\n    // remember that the `customFilter`/`classNameFilter` are set during the\n    // provider/config stage therefore we can optimize here and setup helper functions\n    var customFilter = $animateProvider.customFilter();\n    var classNameFilter = $animateProvider.classNameFilter();\n    var returnTrue = function() { return true; };\n\n    var isAnimatableByFilter = customFilter || returnTrue;\n    var isAnimatableClassName = !classNameFilter ? returnTrue : function(node, options) {\n      var className = [node.getAttribute('class'), options.addClass, options.removeClass].join(' ');\n      return classNameFilter.test(className);\n    };\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function normalizeAnimationDetails(element, animation) {\n      return mergeAnimationDetails(element, animation, {});\n    }\n\n    // IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\n    var contains = window.Node.prototype.contains || /** @this */ function(arg) {\n      // eslint-disable-next-line no-bitwise\n      return this === arg || !!(this.compareDocumentPosition(arg) & 16);\n    };\n\n    function findCallbacks(targetParentNode, targetNode, event) {\n      var matches = [];\n      var entries = callbackRegistry[event];\n      if (entries) {\n        forEach(entries, function(entry) {\n          if (contains.call(entry.node, targetNode)) {\n            matches.push(entry.callback);\n          } else if (event === 'leave' && contains.call(entry.node, targetParentNode)) {\n            matches.push(entry.callback);\n          }\n        });\n      }\n\n      return matches;\n    }\n\n    function filterFromRegistry(list, matchContainer, matchCallback) {\n      var containerNode = extractElementNode(matchContainer);\n      return list.filter(function(entry) {\n        var isMatch = entry.node === containerNode &&\n                        (!matchCallback || entry.callback === matchCallback);\n        return !isMatch;\n      });\n    }\n\n    function cleanupEventListeners(phase, node) {\n      if (phase === 'close' && !node.parentNode) {\n        // If the element is not attached to a parentNode, it has been removed by\n        // the domOperation, and we can safely remove the event callbacks\n        $animate.off(node);\n      }\n    }\n\n    var $animate = {\n      on: function(event, container, callback) {\n        var node = extractElementNode(container);\n        callbackRegistry[event] = callbackRegistry[event] || [];\n        callbackRegistry[event].push({\n          node: node,\n          callback: callback\n        });\n\n        // Remove the callback when the element is removed from the DOM\n        jqLite(container).on('$destroy', function() {\n          var animationDetails = activeAnimationsLookup.get(node);\n\n          if (!animationDetails) {\n            // If there's an animation ongoing, the callback calling code will remove\n            // the event listeners. If we'd remove here, the callbacks would be removed\n            // before the animation ends\n            $animate.off(event, container, callback);\n          }\n        });\n      },\n\n      off: function(event, container, callback) {\n        if (arguments.length === 1 && !isString(arguments[0])) {\n          container = arguments[0];\n          for (var eventType in callbackRegistry) {\n            callbackRegistry[eventType] = filterFromRegistry(callbackRegistry[eventType], container);\n          }\n\n          return;\n        }\n\n        var entries = callbackRegistry[event];\n        if (!entries) return;\n\n        callbackRegistry[event] = arguments.length === 1\n            ? null\n            : filterFromRegistry(entries, container, callback);\n      },\n\n      pin: function(element, parentElement) {\n        assertArg(isElement(element), 'element', 'not an element');\n        assertArg(isElement(parentElement), 'parentElement', 'not an element');\n        element.data(NG_ANIMATE_PIN_DATA, parentElement);\n      },\n\n      push: function(element, event, options, domOperation) {\n        options = options || {};\n        options.domOperation = domOperation;\n        return queueAnimation(element, event, options);\n      },\n\n      // this method has four signatures:\n      //  () - global getter\n      //  (bool) - global setter\n      //  (element) - element getter\n      //  (element, bool) - element setter<F37>\n      enabled: function(element, bool) {\n        var argCount = arguments.length;\n\n        if (argCount === 0) {\n          // () - Global getter\n          bool = !!animationsEnabled;\n        } else {\n          var hasElement = isElement(element);\n\n          if (!hasElement) {\n            // (bool) - Global setter\n            bool = animationsEnabled = !!element;\n          } else {\n            var node = getDomNode(element);\n\n            if (argCount === 1) {\n              // (element) - Element getter\n              bool = !disabledElementsLookup.get(node);\n            } else {\n              // (element, bool) - Element setter\n              if (!disabledElementsLookup.has(node)) {\n                // The element is added to the map for the first time.\n                // Create a listener to remove it on `$destroy` (to avoid memory leak).\n                jqLite(element).on('$destroy', removeFromDisabledElementsLookup);\n              }\n              disabledElementsLookup.set(node, !bool);\n            }\n          }\n        }\n\n        return bool;\n      }\n    };\n\n    return $animate;\n\n    function queueAnimation(originalElement, event, initialOptions) {\n      // we always make a copy of the options since\n      // there should never be any side effects on\n      // the input data when running `$animateCss`.\n      var options = copy(initialOptions);\n\n      var element = stripCommentsFromElement(originalElement);\n      var node = getDomNode(element);\n      var parentNode = node && node.parentNode;\n\n      options = prepareAnimationOptions(options);\n\n      // we create a fake runner with a working promise.\n      // These methods will become available after the digest has passed\n      var runner = new $$AnimateRunner();\n\n      // this is used to trigger callbacks in postDigest mode\n      var runInNextPostDigestOrNow = postDigestTaskFactory();\n\n      if (isArray(options.addClass)) {\n        options.addClass = options.addClass.join(' ');\n      }\n\n      if (options.addClass && !isString(options.addClass)) {\n        options.addClass = null;\n      }\n\n      if (isArray(options.removeClass)) {\n        options.removeClass = options.removeClass.join(' ');\n      }\n\n      if (options.removeClass && !isString(options.removeClass)) {\n        options.removeClass = null;\n      }\n\n      if (options.from && !isObject(options.from)) {\n        options.from = null;\n      }\n\n      if (options.to && !isObject(options.to)) {\n        options.to = null;\n      }\n\n      // If animations are hard-disabled for the whole application there is no need to continue.\n      // There are also situations where a directive issues an animation for a jqLite wrapper that\n      // contains only comment nodes. In this case, there is no way we can perform an animation.\n      if (!animationsEnabled ||\n          !node ||\n          !isAnimatableByFilter(node, event, initialOptions) ||\n          !isAnimatableClassName(node, options)) {\n        close();\n        return runner;\n      }\n\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      var documentHidden = $$isDocumentHidden();\n\n      // This is a hard disable of all animations the element itself, therefore  there is no need to\n      // continue further past this point if not enabled\n      // Animations are also disabled if the document is currently hidden (page is not visible\n      // to the user), because browsers slow down or do not flush calls to requestAnimationFrame\n      var skipAnimations = documentHidden || disabledElementsLookup.get(node);\n      var existingAnimation = (!skipAnimations && activeAnimationsLookup.get(node)) || {};\n      var hasExistingAnimation = !!existingAnimation.state;\n\n      // there is no point in traversing the same collection of parent ancestors if a followup\n      // animation will be run on the same element that already did all that checking work\n      if (!skipAnimations && (!hasExistingAnimation || existingAnimation.state !== PRE_DIGEST_STATE)) {\n        skipAnimations = !areAnimationsAllowed(node, parentNode, event);\n      }\n\n      if (skipAnimations) {\n        // Callbacks should fire even if the document is hidden (regression fix for issue #14120)\n        if (documentHidden) notifyProgress(runner, event, 'start', getEventData(options));\n        close();\n        if (documentHidden) notifyProgress(runner, event, 'close', getEventData(options));\n        return runner;\n      }\n\n      if (isStructural) {\n        closeChildAnimations(node);\n      }\n\n      var newAnimation = {\n        structural: isStructural,\n        element: element,\n        event: event,\n        addClass: options.addClass,\n        removeClass: options.removeClass,\n        close: close,\n        options: options,\n        runner: runner\n      };\n\n      if (hasExistingAnimation) {\n        var skipAnimationFlag = isAllowed('skip', newAnimation, existingAnimation);\n        if (skipAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            close();\n            return runner;\n          } else {\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n            return existingAnimation.runner;\n          }\n        }\n        var cancelAnimationFlag = isAllowed('cancel', newAnimation, existingAnimation);\n        if (cancelAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            // this will end the animation right away and it is safe\n            // to do so since the animation is already running and the\n            // runner callback code will run in async\n            existingAnimation.runner.end();\n          } else if (existingAnimation.structural) {\n            // this means that the animation is queued into a digest, but\n            // hasn't started yet. Therefore it is safe to run the close\n            // method which will call the runner methods in async.\n            existingAnimation.close();\n          } else {\n            // this will merge the new animation options into existing animation options\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n            return existingAnimation.runner;\n          }\n        } else {\n          // a joined animation means that this animation will take over the existing one\n          // so an example would involve a leave animation taking over an enter. Then when\n          // the postDigest kicks in the enter will be ignored.\n          var joinAnimationFlag = isAllowed('join', newAnimation, existingAnimation);\n          if (joinAnimationFlag) {\n            if (existingAnimation.state === RUNNING_STATE) {\n              normalizeAnimationDetails(element, newAnimation);\n            } else {\n              applyGeneratedPreparationClasses($$jqLite, element, isStructural ? event : null, options);\n\n              event = newAnimation.event = existingAnimation.event;\n              options = mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n              //we return the same runner since only the option values of this animation will\n              //be fed into the `existingAnimation`.\n              return existingAnimation.runner;\n            }\n          }\n        }\n      } else {\n        // normalization in this case means that it removes redundant CSS classes that\n        // already exist (addClass) or do not exist (removeClass) on the element\n        normalizeAnimationDetails(element, newAnimation);\n      }\n\n      // when the options are merged and cleaned up we may end up not having to do\n      // an animation at all, therefore we should check this before issuing a post\n      // digest callback. Structural animations will always run no matter what.\n      var isValidAnimation = newAnimation.structural;\n      if (!isValidAnimation) {\n        // animate (from/to) can be quickly checked first, otherwise we check if any classes are present\n        isValidAnimation = (newAnimation.event === 'animate' && Object.keys(newAnimation.options.to || {}).length > 0)\n                            || hasAnimationClasses(newAnimation);\n      }\n\n      if (!isValidAnimation) {\n        close();\n        clearElementAnimationState(node);\n        return runner;\n      }\n\n      // the counter keeps track of cancelled animations\n      var counter = (existingAnimation.counter || 0) + 1;\n      newAnimation.counter = counter;\n\n      markElementAnimationState(node, PRE_DIGEST_STATE, newAnimation);\n\n      $rootScope.$$postDigest(function() {\n        // It is possible that the DOM nodes inside `originalElement` have been replaced. This can\n        // happen if the animated element is a transcluded clone and also has a `templateUrl`\n        // directive on it. Therefore, we must recreate `element` in order to interact with the\n        // actual DOM nodes.\n        // Note: We still need to use the old `node` for certain things, such as looking up in\n        //       HashMaps where it was used as the key.\n\n        element = stripCommentsFromElement(originalElement);\n\n        var animationDetails = activeAnimationsLookup.get(node);\n        var animationCancelled = !animationDetails;\n        animationDetails = animationDetails || {};\n\n        // if addClass/removeClass is called before something like enter then the\n        // registered parent element may not be present. The code below will ensure\n        // that a final value for parent element is obtained\n        var parentElement = element.parent() || [];\n\n        // animate/structural/class-based animations all have requirements. Otherwise there\n        // is no point in performing an animation. The parent node must also be set.\n        var isValidAnimation = parentElement.length > 0\n                                && (animationDetails.event === 'animate'\n                                    || animationDetails.structural\n                                    || hasAnimationClasses(animationDetails));\n\n        // this means that the previous animation was cancelled\n        // even if the follow-up animation is the same event\n        if (animationCancelled || animationDetails.counter !== counter || !isValidAnimation) {\n          // if another animation did not take over then we need\n          // to make sure that the domOperation and options are\n          // handled accordingly\n          if (animationCancelled) {\n            applyAnimationClasses(element, options);\n            applyAnimationStyles(element, options);\n          }\n\n          // if the event changed from something like enter to leave then we do\n          // it, otherwise if it's the same then the end result will be the same too\n          if (animationCancelled || (isStructural && animationDetails.event !== event)) {\n            options.domOperation();\n            runner.end();\n          }\n\n          // in the event that the element animation was not cancelled or a follow-up animation\n          // isn't allowed to animate from here then we need to clear the state of the element\n          // so that any future animations won't read the expired animation data.\n          if (!isValidAnimation) {\n            clearElementAnimationState(node);\n          }\n\n          return;\n        }\n\n        // this combined multiple class to addClass / removeClass into a setClass event\n        // so long as a structural event did not take over the animation\n        event = !animationDetails.structural && hasAnimationClasses(animationDetails, true)\n            ? 'setClass'\n            : animationDetails.event;\n\n        markElementAnimationState(node, RUNNING_STATE);\n        var realRunner = $$animation(element, event, animationDetails.options);\n\n        // this will update the runner's flow-control events based on\n        // the `realRunner` object.\n        runner.setHost(realRunner);\n        notifyProgress(runner, event, 'start', getEventData(options));\n\n        realRunner.done(function(status) {\n          close(!status);\n          var animationDetails = activeAnimationsLookup.get(node);\n          if (animationDetails && animationDetails.counter === counter) {\n            clearElementAnimationState(node);\n          }\n          notifyProgress(runner, event, 'close', getEventData(options));\n        });\n      });\n\n      return runner;\n\n      function notifyProgress(runner, event, phase, data) {\n        runInNextPostDigestOrNow(function() {\n          var callbacks = findCallbacks(parentNode, node, event);\n          if (callbacks.length) {\n            // do not optimize this call here to RAF because\n            // we don't know how heavy the callback code here will\n            // be and if this code is buffered then this can\n            // lead to a performance regression.\n            $$rAF(function() {\n              forEach(callbacks, function(callback) {\n                callback(element, phase, data);\n              });\n              cleanupEventListeners(phase, node);\n            });\n          } else {\n            cleanupEventListeners(phase, node);\n          }\n        });\n        runner.progress(event, phase, data);\n      }\n\n      function close(reject) {\n        clearGeneratedClasses(element, options);\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n        runner.complete(!reject);\n      }\n    }\n\n    function closeChildAnimations(node) {\n      var children = node.querySelectorAll('[' + NG_ANIMATE_ATTR_NAME + ']');\n      forEach(children, function(child) {\n        var state = parseInt(child.getAttribute(NG_ANIMATE_ATTR_NAME), 10);\n        var animationDetails = activeAnimationsLookup.get(child);\n        if (animationDetails) {\n          switch (state) {\n            case RUNNING_STATE:\n              animationDetails.runner.end();\n              /* falls through */\n            case PRE_DIGEST_STATE:\n              activeAnimationsLookup.delete(child);\n              break;\n          }\n        }\n      });\n    }\n\n    function clearElementAnimationState(node) {\n      node.removeAttribute(NG_ANIMATE_ATTR_NAME);\n      activeAnimationsLookup.delete(node);\n    }\n\n    /**\n     * This fn returns false if any of the following is true:\n     * a) animations on any parent element are disabled, and animations on the element aren't explicitly allowed\n     * b) a parent element has an ongoing structural animation, and animateChildren is false\n     * c) the element is not a child of the body\n     * d) the element is not a child of the $rootElement\n     */\n    function areAnimationsAllowed(node, parentNode, event) {\n      var bodyNode = $document[0].body;\n      var rootNode = getDomNode($rootElement);\n\n      var bodyNodeDetected = (node === bodyNode) || node.nodeName === 'HTML';\n      var rootNodeDetected = (node === rootNode);\n      var parentAnimationDetected = false;\n      var elementDisabled = disabledElementsLookup.get(node);\n      var animateChildren;\n\n      var parentHost = jqLite.data(node, NG_ANIMATE_PIN_DATA);\n      if (parentHost) {\n        parentNode = getDomNode(parentHost);\n      }\n\n      while (parentNode) {\n        if (!rootNodeDetected) {\n          // AngularJS doesn't want to attempt to animate elements outside of the application\n          // therefore we need to ensure that the rootElement is an ancestor of the current element\n          rootNodeDetected = (parentNode === rootNode);\n        }\n\n        if (parentNode.nodeType !== ELEMENT_NODE) {\n          // no point in inspecting the #document element\n          break;\n        }\n\n        var details = activeAnimationsLookup.get(parentNode) || {};\n        // either an enter, leave or move animation will commence\n        // therefore we can't allow any animations to take place\n        // but if a parent animation is class-based then that's ok\n        if (!parentAnimationDetected) {\n          var parentNodeDisabled = disabledElementsLookup.get(parentNode);\n\n          if (parentNodeDisabled === true && elementDisabled !== false) {\n            // disable animations if the user hasn't explicitly enabled animations on the\n            // current element\n            elementDisabled = true;\n            // element is disabled via parent element, no need to check anything else\n            break;\n          } else if (parentNodeDisabled === false) {\n            elementDisabled = false;\n          }\n          parentAnimationDetected = details.structural;\n        }\n\n        if (isUndefined(animateChildren) || animateChildren === true) {\n          var value = jqLite.data(parentNode, NG_ANIMATE_CHILDREN_DATA);\n          if (isDefined(value)) {\n            animateChildren = value;\n          }\n        }\n\n        // there is no need to continue traversing at this point\n        if (parentAnimationDetected && animateChildren === false) break;\n\n        if (!bodyNodeDetected) {\n          // we also need to ensure that the element is or will be a part of the body element\n          // otherwise it is pointless to even issue an animation to be rendered\n          bodyNodeDetected = (parentNode === bodyNode);\n        }\n\n        if (bodyNodeDetected && rootNodeDetected) {\n          // If both body and root have been found, any other checks are pointless,\n          // as no animation data should live outside the application\n          break;\n        }\n\n        if (!rootNodeDetected) {\n          // If `rootNode` is not detected, check if `parentNode` is pinned to another element\n          parentHost = jqLite.data(parentNode, NG_ANIMATE_PIN_DATA);\n          if (parentHost) {\n            // The pin target element becomes the next parent element\n            parentNode = getDomNode(parentHost);\n            continue;\n          }\n        }\n\n        parentNode = parentNode.parentNode;\n      }\n\n      var allowAnimation = (!parentAnimationDetected || animateChildren) && elementDisabled !== true;\n      return allowAnimation && rootNodeDetected && bodyNodeDetected;\n    }\n\n    function markElementAnimationState(node, state, details) {\n      details = details || {};\n      details.state = state;\n\n      node.setAttribute(NG_ANIMATE_ATTR_NAME, state);\n\n      var oldValue = activeAnimationsLookup.get(node);\n      var newValue = oldValue\n          ? extend(oldValue, details)\n          : details;\n      activeAnimationsLookup.set(node, newValue);\n    }\n  }];\n}];\n\n/** @this */\nvar $$AnimateCacheProvider = function() {\n\n  var KEY = '$$ngAnimateParentKey';\n  var parentCounter = 0;\n  var cache = Object.create(null);\n\n  this.$get = [function() {\n    return {\n      cacheKey: function(node, method, addClass, removeClass) {\n        var parentNode = node.parentNode;\n        var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);\n        var parts = [parentID, method, node.getAttribute('class')];\n        if (addClass) {\n          parts.push(addClass);\n        }\n        if (removeClass) {\n          parts.push(removeClass);\n        }\n        return parts.join(' ');\n      },\n\n      containsCachedAnimationWithoutDuration: function(key) {\n        var entry = cache[key];\n\n        // nothing cached, so go ahead and animate\n        // otherwise it should be a valid animation\n        return (entry && !entry.isValid) || false;\n      },\n\n      flush: function() {\n        cache = Object.create(null);\n      },\n\n      count: function(key) {\n        var entry = cache[key];\n        return entry ? entry.total : 0;\n      },\n\n      get: function(key) {\n        var entry = cache[key];\n        return entry && entry.value;\n      },\n\n      put: function(key, value, isValid) {\n        if (!cache[key]) {\n          cache[key] = { total: 1, value: value, isValid: isValid };\n        } else {\n          cache[key].total++;\n          cache[key].value = value;\n        }\n      }\n    };\n  }];\n};\n\n/* exported $$AnimationProvider */\n\nvar $$AnimationProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var NG_ANIMATE_REF_ATTR = 'ng-animate-ref';\n\n  var drivers = this.drivers = [];\n\n  var RUNNER_STORAGE_KEY = '$$animationRunner';\n  var PREPARE_CLASSES_KEY = '$$animatePrepareClasses';\n\n  function setRunner(element, runner) {\n    element.data(RUNNER_STORAGE_KEY, runner);\n  }\n\n  function removeRunner(element) {\n    element.removeData(RUNNER_STORAGE_KEY);\n  }\n\n  function getRunner(element) {\n    return element.data(RUNNER_STORAGE_KEY);\n  }\n\n  this.$get = ['$$jqLite', '$rootScope', '$injector', '$$AnimateRunner', '$$Map', '$$rAFScheduler', '$$animateCache',\n       function($$jqLite,   $rootScope,   $injector,   $$AnimateRunner,   $$Map,   $$rAFScheduler, $$animateCache) {\n\n    var animationQueue = [];\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function sortAnimations(animations) {\n      var tree = { children: [] };\n      var i, lookup = new $$Map();\n\n      // this is done first beforehand so that the map\n      // is filled with a list of the elements that will be animated\n      for (i = 0; i < animations.length; i++) {\n        var animation = animations[i];\n        lookup.set(animation.domNode, animations[i] = {\n          domNode: animation.domNode,\n          element: animation.element,\n          fn: animation.fn,\n          children: []\n        });\n      }\n\n      for (i = 0; i < animations.length; i++) {\n        processNode(animations[i]);\n      }\n\n      return flatten(tree);\n\n      function processNode(entry) {\n        if (entry.processed) return entry;\n        entry.processed = true;\n\n        var elementNode = entry.domNode;\n        var parentNode = elementNode.parentNode;\n        lookup.set(elementNode, entry);\n\n        var parentEntry;\n        while (parentNode) {\n          parentEntry = lookup.get(parentNode);\n          if (parentEntry) {\n            if (!parentEntry.processed) {\n              parentEntry = processNode(parentEntry);\n            }\n            break;\n          }\n          parentNode = parentNode.parentNode;\n        }\n\n        (parentEntry || tree).children.push(entry);\n        return entry;\n      }\n\n      function flatten(tree) {\n        var result = [];\n        var queue = [];\n        var i;\n\n        for (i = 0; i < tree.children.length; i++) {\n          queue.push(tree.children[i]);\n        }\n\n        var remainingLevelEntries = queue.length;\n        var nextLevelEntries = 0;\n        var row = [];\n\n        for (i = 0; i < queue.length; i++) {\n          var entry = queue[i];\n          if (remainingLevelEntries <= 0) {\n            remainingLevelEntries = nextLevelEntries;\n            nextLevelEntries = 0;\n            result.push(row);\n            row = [];\n          }\n          row.push(entry);\n          entry.children.forEach(function(childEntry) {\n            nextLevelEntries++;\n            queue.push(childEntry);\n          });\n          remainingLevelEntries--;\n        }\n\n        if (row.length) {\n          result.push(row);\n        }\n\n        return result;\n      }\n    }\n\n    // TODO(matsko): document the signature in a better way\n    return function(element, event, options) {\n      options = prepareAnimationOptions(options);\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      // there is no animation at the current moment, however\n      // these runner methods will get later updated with the\n      // methods leading into the driver's end/cancel methods\n      // for now they just stop the animation from starting\n      var runner = new $$AnimateRunner({\n        end: function() { close(); },\n        cancel: function() { close(true); }\n      });\n\n      if (!drivers.length) {\n        close();\n        return runner;\n      }\n\n      var classes = mergeClasses(element.attr('class'), mergeClasses(options.addClass, options.removeClass));\n      var tempClasses = options.tempClasses;\n      if (tempClasses) {\n        classes += ' ' + tempClasses;\n        options.tempClasses = null;\n      }\n\n      if (isStructural) {\n        element.data(PREPARE_CLASSES_KEY, 'ng-' + event + PREPARE_CLASS_SUFFIX);\n      }\n\n      setRunner(element, runner);\n\n      animationQueue.push({\n        // this data is used by the postDigest code and passed into\n        // the driver step function\n        element: element,\n        classes: classes,\n        event: event,\n        structural: isStructural,\n        options: options,\n        beforeStart: beforeStart,\n        close: close\n      });\n\n      element.on('$destroy', handleDestroyedElement);\n\n      // we only want there to be one function called within the post digest\n      // block. This way we can group animations for all the animations that\n      // were apart of the same postDigest flush call.\n      if (animationQueue.length > 1) return runner;\n\n      $rootScope.$$postDigest(function() {\n        var animations = [];\n        forEach(animationQueue, function(entry) {\n          // the element was destroyed early on which removed the runner\n          // form its storage. This means we can't animate this element\n          // at all and it already has been closed due to destruction.\n          if (getRunner(entry.element)) {\n            animations.push(entry);\n          } else {\n            entry.close();\n          }\n        });\n\n        // now any future animations will be in another postDigest\n        animationQueue.length = 0;\n\n        var groupedAnimations = groupAnimations(animations);\n        var toBeSortedAnimations = [];\n\n        forEach(groupedAnimations, function(animationEntry) {\n          var element = animationEntry.from ? animationEntry.from.element : animationEntry.element;\n          var extraClasses = options.addClass;\n\n          extraClasses = (extraClasses ? (extraClasses + ' ') : '') + NG_ANIMATE_CLASSNAME;\n          var cacheKey = $$animateCache.cacheKey(element[0], animationEntry.event, extraClasses, options.removeClass);\n\n          toBeSortedAnimations.push({\n            element: element,\n            domNode: getDomNode(element),\n            fn: function triggerAnimationStart() {\n              var startAnimationFn, closeFn = animationEntry.close;\n\n              // in the event that we've cached the animation status for this element\n              // and it's in fact an invalid animation (something that has duration = 0)\n              // then we should skip all the heavy work from here on\n              if ($$animateCache.containsCachedAnimationWithoutDuration(cacheKey)) {\n                closeFn();\n                return;\n              }\n\n              // it's important that we apply the `ng-animate` CSS class and the\n              // temporary classes before we do any driver invoking since these\n              // CSS classes may be required for proper CSS detection.\n              animationEntry.beforeStart();\n\n              // in the event that the element was removed before the digest runs or\n              // during the RAF sequencing then we should not trigger the animation.\n              var targetElement = animationEntry.anchors\n                  ? (animationEntry.from.element || animationEntry.to.element)\n                  : animationEntry.element;\n\n              if (getRunner(targetElement)) {\n                var operation = invokeFirstDriver(animationEntry);\n                if (operation) {\n                  startAnimationFn = operation.start;\n                }\n              }\n\n              if (!startAnimationFn) {\n                closeFn();\n              } else {\n                var animationRunner = startAnimationFn();\n                animationRunner.done(function(status) {\n                  closeFn(!status);\n                });\n                updateAnimationRunners(animationEntry, animationRunner);\n              }\n            }\n          });\n        });\n\n        // we need to sort each of the animations in order of parent to child\n        // relationships. This ensures that the child classes are applied at the\n        // right time.\n        var finalAnimations = sortAnimations(toBeSortedAnimations);\n        for (var i = 0; i < finalAnimations.length; i++) {\n          var innerArray = finalAnimations[i];\n          for (var j = 0; j < innerArray.length; j++) {\n            var entry = innerArray[j];\n            var element = entry.element;\n\n            // the RAFScheduler code only uses functions\n            finalAnimations[i][j] = entry.fn;\n\n            // the first row of elements shouldn't have a prepare-class added to them\n            // since the elements are at the top of the animation hierarchy and they\n            // will be applied without a RAF having to pass...\n            if (i === 0) {\n              element.removeData(PREPARE_CLASSES_KEY);\n              continue;\n            }\n\n            var prepareClassName = element.data(PREPARE_CLASSES_KEY);\n            if (prepareClassName) {\n              $$jqLite.addClass(element, prepareClassName);\n            }\n          }\n        }\n\n        $$rAFScheduler(finalAnimations);\n      });\n\n      return runner;\n\n      // TODO(matsko): change to reference nodes\n      function getAnchorNodes(node) {\n        var SELECTOR = '[' + NG_ANIMATE_REF_ATTR + ']';\n        var items = node.hasAttribute(NG_ANIMATE_REF_ATTR)\n              ? [node]\n              : node.querySelectorAll(SELECTOR);\n        var anchors = [];\n        forEach(items, function(node) {\n          var attr = node.getAttribute(NG_ANIMATE_REF_ATTR);\n          if (attr && attr.length) {\n            anchors.push(node);\n          }\n        });\n        return anchors;\n      }\n\n      function groupAnimations(animations) {\n        var preparedAnimations = [];\n        var refLookup = {};\n        forEach(animations, function(animation, index) {\n          var element = animation.element;\n          var node = getDomNode(element);\n          var event = animation.event;\n          var enterOrMove = ['enter', 'move'].indexOf(event) >= 0;\n          var anchorNodes = animation.structural ? getAnchorNodes(node) : [];\n\n          if (anchorNodes.length) {\n            var direction = enterOrMove ? 'to' : 'from';\n\n            forEach(anchorNodes, function(anchor) {\n              var key = anchor.getAttribute(NG_ANIMATE_REF_ATTR);\n              refLookup[key] = refLookup[key] || {};\n              refLookup[key][direction] = {\n                animationID: index,\n                element: jqLite(anchor)\n              };\n            });\n          } else {\n            preparedAnimations.push(animation);\n          }\n        });\n\n        var usedIndicesLookup = {};\n        var anchorGroups = {};\n        forEach(refLookup, function(operations, key) {\n          var from = operations.from;\n          var to = operations.to;\n\n          if (!from || !to) {\n            // only one of these is set therefore we can't have an\n            // anchor animation since all three pieces are required\n            var index = from ? from.animationID : to.animationID;\n            var indexKey = index.toString();\n            if (!usedIndicesLookup[indexKey]) {\n              usedIndicesLookup[indexKey] = true;\n              preparedAnimations.push(animations[index]);\n            }\n            return;\n          }\n\n          var fromAnimation = animations[from.animationID];\n          var toAnimation = animations[to.animationID];\n          var lookupKey = from.animationID.toString();\n          if (!anchorGroups[lookupKey]) {\n            var group = anchorGroups[lookupKey] = {\n              structural: true,\n              beforeStart: function() {\n                fromAnimation.beforeStart();\n                toAnimation.beforeStart();\n              },\n              close: function() {\n                fromAnimation.close();\n                toAnimation.close();\n              },\n              classes: cssClassesIntersection(fromAnimation.classes, toAnimation.classes),\n              from: fromAnimation,\n              to: toAnimation,\n              anchors: [] // TODO(matsko): change to reference nodes\n            };\n\n            // the anchor animations require that the from and to elements both have at least\n            // one shared CSS class which effectively marries the two elements together to use\n            // the same animation driver and to properly sequence the anchor animation.\n            if (group.classes.length) {\n              preparedAnimations.push(group);\n            } else {\n              preparedAnimations.push(fromAnimation);\n              preparedAnimations.push(toAnimation);\n            }\n          }\n\n          anchorGroups[lookupKey].anchors.push({\n            'out': from.element, 'in': to.element\n          });\n        });\n\n        return preparedAnimations;\n      }\n\n      function cssClassesIntersection(a,b) {\n        a = a.split(' ');\n        b = b.split(' ');\n        var matches = [];\n\n        for (var i = 0; i < a.length; i++) {\n          var aa = a[i];\n          if (aa.substring(0,3) === 'ng-') continue;\n\n          for (var j = 0; j < b.length; j++) {\n            if (aa === b[j]) {\n              matches.push(aa);\n              break;\n            }\n          }\n        }\n\n        return matches.join(' ');\n      }\n\n      function invokeFirstDriver(animationDetails) {\n        // we loop in reverse order since the more general drivers (like CSS and JS)\n        // may attempt more elements, but custom drivers are more particular\n        for (var i = drivers.length - 1; i >= 0; i--) {\n          var driverName = drivers[i];\n          var factory = $injector.get(driverName);\n          var driver = factory(animationDetails);\n          if (driver) {\n            return driver;\n          }\n        }\n      }\n\n      function beforeStart() {\n        tempClasses = (tempClasses ? (tempClasses + ' ') : '') + NG_ANIMATE_CLASSNAME;\n        $$jqLite.addClass(element, tempClasses);\n\n        var prepareClassName = element.data(PREPARE_CLASSES_KEY);\n        if (prepareClassName) {\n          $$jqLite.removeClass(element, prepareClassName);\n          prepareClassName = null;\n        }\n      }\n\n      function updateAnimationRunners(animation, newRunner) {\n        if (animation.from && animation.to) {\n          update(animation.from.element);\n          update(animation.to.element);\n        } else {\n          update(animation.element);\n        }\n\n        function update(element) {\n          var runner = getRunner(element);\n          if (runner) runner.setHost(newRunner);\n        }\n      }\n\n      function handleDestroyedElement() {\n        var runner = getRunner(element);\n        if (runner && (event !== 'leave' || !options.$$domOperationFired)) {\n          runner.end();\n        }\n      }\n\n      function close(rejected) {\n        element.off('$destroy', handleDestroyedElement);\n        removeRunner(element);\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n\n        if (tempClasses) {\n          $$jqLite.removeClass(element, tempClasses);\n        }\n\n        runner.complete(!rejected);\n      }\n    };\n  }];\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateSwap\n * @restrict A\n * @scope\n *\n * @description\n *\n * ngAnimateSwap is a animation-oriented directive that allows for the container to\n * be removed and entered in whenever the associated expression changes. A\n * common usecase for this directive is a rotating banner or slider component which\n * contains one image being present at a time. When the active image changes\n * then the old image will perform a `leave` animation and the new element\n * will be inserted via an `enter` animation.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|--------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the new element is inserted to the DOM  |\n * | {@link ng.$animate#leave leave}  | when the old element is removed from the DOM |\n *\n * @example\n * <example name=\"ngAnimateSwap-directive\" module=\"ngAnimateSwapExample\"\n *          deps=\"angular-animate.js\"\n *          animations=\"true\" fixBase=\"true\">\n *   <file name=\"index.html\">\n *     <div class=\"container\" ng-controller=\"AppCtrl\">\n *       <div ng-animate-swap=\"number\" class=\"cell swap-animation\" ng-class=\"colorClass(number)\">\n *         {{ number }}\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"script.js\">\n *     angular.module('ngAnimateSwapExample', ['ngAnimate'])\n *       .controller('AppCtrl', ['$scope', '$interval', function($scope, $interval) {\n *         $scope.number = 0;\n *         $interval(function() {\n *           $scope.number++;\n *         }, 1000);\n *\n *         var colors = ['red','blue','green','yellow','orange'];\n *         $scope.colorClass = function(number) {\n *           return colors[number % colors.length];\n *         };\n *       }]);\n *   </file>\n *  <file name=\"animations.css\">\n *  .container {\n *    height:250px;\n *    width:250px;\n *    position:relative;\n *    overflow:hidden;\n *    border:2px solid black;\n *  }\n *  .container .cell {\n *    font-size:150px;\n *    text-align:center;\n *    line-height:250px;\n *    position:absolute;\n *    top:0;\n *    left:0;\n *    right:0;\n *    border-bottom:2px solid black;\n *  }\n *  .swap-animation.ng-enter, .swap-animation.ng-leave {\n *    transition:0.5s linear all;\n *  }\n *  .swap-animation.ng-enter {\n *    top:-250px;\n *  }\n *  .swap-animation.ng-enter-active {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave-active {\n *    top:250px;\n *  }\n *  .red { background:red; }\n *  .green { background:green; }\n *  .blue { background:blue; }\n *  .yellow { background:yellow; }\n *  .orange { background:orange; }\n *  </file>\n * </example>\n */\nvar ngAnimateSwapDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    transclude: 'element',\n    terminal: true,\n    priority: 550, // We use 550 here to ensure that the directive is caught before others,\n                   // but after `ngIf` (at priority 600).\n    link: function(scope, $element, attrs, ctrl, $transclude) {\n      var previousElement, previousScope;\n      scope.$watchCollection(attrs.ngAnimateSwap || attrs['for'], function(value) {\n        if (previousElement) {\n          $animate.leave(previousElement);\n        }\n        if (previousScope) {\n          previousScope.$destroy();\n          previousScope = null;\n        }\n        if (value || value === 0) {\n          $transclude(function(clone, childScope) {\n            previousElement = clone;\n            previousScope = childScope;\n            $animate.enter(clone, null, $element);\n          });\n        }\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc module\n * @name ngAnimate\n * @description\n *\n * The `ngAnimate` module provides support for CSS-based animations (keyframes and transitions) as well as JavaScript-based animations via\n * callback hooks. Animations are not enabled by default, however, by including `ngAnimate` the animation hooks are enabled for an AngularJS app.\n *\n * ## Usage\n * Simply put, there are two ways to make use of animations when ngAnimate is used: by using **CSS** and **JavaScript**. The former works purely based\n * using CSS (by using matching CSS selectors/styles) and the latter triggers animations that are registered via `module.animation()`. For\n * both CSS and JS animations the sole requirement is to have a matching `CSS class` that exists both in the registered animation and within\n * the HTML element that the animation will be triggered on.\n *\n * ## Directive Support\n * The following directives are \"animation aware\":\n *\n * | Directive                                                                     | Supported Animations                                                      |\n * |-------------------------------------------------------------------------------|---------------------------------------------------------------------------|\n * | {@link ng.directive:form#animations form / ngForm}                            | add and remove ({@link ng.directive:form#css-classes various classes})    |\n * | {@link ngAnimate.directive:ngAnimateSwap#animations ngAnimateSwap}            | enter and leave                                                           |\n * | {@link ng.directive:ngClass#animations ngClass / {{class&#125;&#8203;&#125;}  | add and remove                                                            |\n * | {@link ng.directive:ngClassEven#animations ngClassEven}                       | add and remove                                                            |\n * | {@link ng.directive:ngClassOdd#animations ngClassOdd}                         | add and remove                                                            |\n * | {@link ng.directive:ngHide#animations ngHide}                                 | add and remove (the `ng-hide` class)                                      |\n * | {@link ng.directive:ngIf#animations ngIf}                                     | enter and leave                                                           |\n * | {@link ng.directive:ngInclude#animations ngInclude}                           | enter and leave                                                           |\n * | {@link module:ngMessages#animations ngMessage / ngMessageExp}                 | enter and leave                                                           |\n * | {@link module:ngMessages#animations ngMessages}                               | add and remove (the `ng-active`/`ng-inactive` classes)                    |\n * | {@link ng.directive:ngModel#animations ngModel}                               | add and remove ({@link ng.directive:ngModel#css-classes various classes}) |\n * | {@link ng.directive:ngRepeat#animations ngRepeat}                             | enter, leave, and move                                                    |\n * | {@link ng.directive:ngShow#animations ngShow}                                 | add and remove (the `ng-hide` class)                                      |\n * | {@link ng.directive:ngSwitch#animations ngSwitch}                             | enter and leave                                                           |\n * | {@link ngRoute.directive:ngView#animations ngView}                            | enter and leave                                                           |\n *\n * (More information can be found by visiting the documentation associated with each directive.)\n *\n * For a full breakdown of the steps involved during each animation event, refer to the\n * {@link ng.$animate `$animate` API docs}.\n *\n * ## CSS-based Animations\n *\n * CSS-based animations with ngAnimate are unique since they require no JavaScript code at all. By using a CSS class that we reference between our HTML\n * and CSS code we can create an animation that will be picked up by AngularJS when an underlying directive performs an operation.\n *\n * The example below shows how an `enter` animation can be made possible on an element using `ng-if`:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"fade\">\n *    Fade me in out\n * </div>\n * <button ng-click=\"bool=true\">Fade In!</button>\n * <button ng-click=\"bool=false\">Fade Out!</button>\n * ```\n *\n * Notice the CSS class **fade**? We can now create the CSS transition code that references this class:\n *\n * ```css\n * /&#42; The starting CSS styles for the enter animation &#42;/\n * .fade.ng-enter {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n *\n * /&#42; The finishing CSS styles for the enter animation &#42;/\n * .fade.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * ```\n *\n * The key thing to remember here is that, depending on the animation event (which each of the directives above trigger depending on what's going on) two\n * generated CSS classes will be applied to the element; in the example above we have `.ng-enter` and `.ng-enter-active`. For CSS transitions, the transition\n * code **must** be defined within the starting CSS class (in this case `.ng-enter`). The destination class is what the transition will animate towards.\n *\n * If for example we wanted to create animations for `leave` and `move` (ngRepeat triggers move) then we can do so using the same CSS naming conventions:\n *\n * ```css\n * /&#42; now the element will fade out before it is removed from the DOM &#42;/\n * .fade.ng-leave {\n *   transition:0.5s linear all;\n *   opacity:1;\n * }\n * .fade.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * We can also make use of **CSS Keyframes** by referencing the keyframe animation within the starting CSS class:\n *\n * ```css\n * /&#42; there is no need to define anything inside of the destination\n * CSS class since the keyframe will take charge of the animation &#42;/\n * .fade.ng-leave {\n *   animation: my_fade_animation 0.5s linear;\n *   -webkit-animation: my_fade_animation 0.5s linear;\n * }\n *\n * @keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n *\n * @-webkit-keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n * ```\n *\n * Feel free also mix transitions and keyframes together as well as any other CSS classes on the same element.\n *\n * ### CSS Class-based Animations\n *\n * Class-based animations (animations that are triggered via `ngClass`, `ngShow`, `ngHide` and some other directives) have a slightly different\n * naming convention. Class-based animations are basic enough that a standard transition or keyframe can be referenced on the class being added\n * and removed.\n *\n * For example if we wanted to do a CSS animation for `ngHide` then we place an animation on the `.ng-hide` CSS class:\n *\n * ```html\n * <div ng-show=\"bool\" class=\"fade\">\n *   Show and hide me\n * </div>\n * <button ng-click=\"bool=!bool\">Toggle</button>\n *\n * <style>\n * .fade.ng-hide {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n * </style>\n * ```\n *\n * All that is going on here with ngShow/ngHide behind the scenes is the `.ng-hide` class is added/removed (when the hidden state is valid). Since\n * ngShow and ngHide are animation aware then we can match up a transition and ngAnimate handles the rest.\n *\n * In addition the addition and removal of the CSS class, ngAnimate also provides two helper methods that we can use to further decorate the animation\n * with CSS styles.\n *\n * ```html\n * <div ng-class=\"{on:onOff}\" class=\"highlight\">\n *   Highlight this box\n * </div>\n * <button ng-click=\"onOff=!onOff\">Toggle</button>\n *\n * <style>\n * .highlight {\n *   transition:0.5s linear all;\n * }\n * .highlight.on-add {\n *   background:white;\n * }\n * .highlight.on {\n *   background:yellow;\n * }\n * .highlight.on-remove {\n *   background:black;\n * }\n * </style>\n * ```\n *\n * We can also make use of CSS keyframes by placing them within the CSS classes.\n *\n *\n * ### CSS Staggering Animations\n * A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a\n * curtain-like effect. The ngAnimate module (versions >=1.2) supports staggering animations and the stagger effect can be\n * performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for\n * the animation. The style property expected within the stagger class can either be a **transition-delay** or an\n * **animation-delay** property (or both if your animation contains both transitions and keyframe animations).\n *\n * ```css\n * .my-animation.ng-enter {\n *   /&#42; standard transition code &#42;/\n *   transition: 1s linear all;\n *   opacity:0;\n * }\n * .my-animation.ng-enter-stagger {\n *   /&#42; this will have a 100ms delay between each successive leave animation &#42;/\n *   transition-delay: 0.1s;\n *\n *   /&#42; As of 1.4.4, this must always be set: it signals ngAnimate\n *     to not accidentally inherit a delay property from another CSS class &#42;/\n *   transition-duration: 0s;\n *\n *   /&#42; if you are using animations instead of transitions you should configure as follows:\n *     animation-delay: 0.1s;\n *     animation-duration: 0s; &#42;/\n * }\n * .my-animation.ng-enter.ng-enter-active {\n *   /&#42; standard transition styles &#42;/\n *   opacity:1;\n * }\n * ```\n *\n * Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations\n * on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this\n * are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation\n * will also be reset if one or more animation frames have passed since the multiple calls to `$animate` were fired.\n *\n * The following code will issue the **ng-leave-stagger** event on the element provided:\n *\n * ```js\n * var kids = parent.children();\n *\n * $animate.leave(kids[0]); //stagger index=0\n * $animate.leave(kids[1]); //stagger index=1\n * $animate.leave(kids[2]); //stagger index=2\n * $animate.leave(kids[3]); //stagger index=3\n * $animate.leave(kids[4]); //stagger index=4\n *\n * window.requestAnimationFrame(function() {\n *   //stagger has reset itself\n *   $animate.leave(kids[5]); //stagger index=0\n *   $animate.leave(kids[6]); //stagger index=1\n *\n *   $scope.$digest();\n * });\n * ```\n *\n * Stagger animations are currently only supported within CSS-defined animations.\n *\n * ### The `ng-animate` CSS class\n *\n * When ngAnimate is animating an element it will apply the `ng-animate` CSS class to the element for the duration of the animation.\n * This is a temporary CSS class and it will be removed once the animation is over (for both JavaScript and CSS-based animations).\n *\n * Therefore, animations can be applied to an element using this temporary class directly via CSS.\n *\n * ```css\n * .zipper.ng-animate {\n *   transition:0.5s linear all;\n * }\n * .zipper.ng-enter {\n *   opacity:0;\n * }\n * .zipper.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * .zipper.ng-leave {\n *   opacity:1;\n * }\n * .zipper.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * (Note that the `ng-animate` CSS class is reserved and it cannot be applied on an element directly since ngAnimate will always remove\n * the CSS class once an animation has completed.)\n *\n *\n * ### The `ng-[event]-prepare` class\n *\n * This is a special class that can be used to prevent unwanted flickering / flash of content before\n * the actual animation starts. The class is added as soon as an animation is initialized, but removed\n * before the actual animation starts (after waiting for a $digest).\n * It is also only added for *structural* animations (`enter`, `move`, and `leave`).\n *\n * In practice, flickering can appear when nesting elements with structural animations such as `ngIf`\n * into elements that have class-based animations such as `ngClass`.\n *\n * ```html\n * <div ng-class=\"{red: myProp}\">\n *   <div ng-class=\"{blue: myProp}\">\n *     <div class=\"message\" ng-if=\"myProp\"></div>\n *   </div>\n * </div>\n * ```\n *\n * It is possible that during the `enter` animation, the `.message` div will be briefly visible before it starts animating.\n * In that case, you can add styles to the CSS that make sure the element stays hidden before the animation starts:\n *\n * ```css\n * .message.ng-enter-prepare {\n *   opacity: 0;\n * }\n * ```\n *\n * ### Animating between value changes\n *\n * Sometimes you need to animate between different expression states, whose values\n * don't necessary need to be known or referenced in CSS styles.\n * Unless possible with another {@link ngAnimate#directive-support \"animation aware\" directive},\n * that specific use case can always be covered with {@link ngAnimate.directive:ngAnimateSwap} as\n * can be seen in {@link ngAnimate.directive:ngAnimateSwap#examples this example}.\n *\n * Note that {@link ngAnimate.directive:ngAnimateSwap} is a *structural directive*, which means it\n * creates a new instance of the element (including any other/child directives it may have) and\n * links it to a new scope every time *swap* happens. In some cases this might not be desirable\n * (e.g. for performance reasons, or when you wish to retain internal state on the original\n * element instance).\n *\n * ## JavaScript-based Animations\n *\n * ngAnimate also allows for animations to be consumed by JavaScript code. The approach is similar to CSS-based animations (where there is a shared\n * CSS class that is referenced in our HTML code) but in addition we need to register the JavaScript animation on the module. By making use of the\n * `module.animation()` module function we can register the animation.\n *\n * Let's see an example of a enter/leave animation using `ngRepeat`:\n *\n * ```html\n * <div ng-repeat=\"item in items\" class=\"slide\">\n *   {{ item }}\n * </div>\n * ```\n *\n * See the **slide** CSS class? Let's use that class to define an animation that we'll structure in our module code by using `module.animation`:\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     // make note that other events (like addClass/removeClass)\n *     // have different function input parameters\n *     enter: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *\n *       // remember to call doneFn so that AngularJS\n *       // knows that the animation has concluded\n *     },\n *\n *     move: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *     },\n *\n *     leave: function(element, doneFn) {\n *       jQuery(element).fadeOut(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing about JS-based animations is that we can inject other services and make use of advanced animation libraries such as\n * greensock.js and velocity.js.\n *\n * If our animation code class-based (meaning that something like `ngClass`, `ngHide` and `ngShow` triggers it) then we can still define\n * our animations inside of the same registered animation, however, the function input arguments are a bit different:\n *\n * ```html\n * <div ng-class=\"color\" class=\"colorful\">\n *   this box is moody\n * </div>\n * <button ng-click=\"color='red'\">Change to red</button>\n * <button ng-click=\"color='blue'\">Change to blue</button>\n * <button ng-click=\"color='green'\">Change to green</button>\n * ```\n *\n * ```js\n * myModule.animation('.colorful', [function() {\n *   return {\n *     addClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     removeClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     setClass: function(element, addedClass, removedClass, doneFn) {\n *       // do some cool animation and call the doneFn\n *     }\n *   }\n * }]);\n * ```\n *\n * ## CSS + JS Animations Together\n *\n * AngularJS 1.4 and higher has taken steps to make the amalgamation of CSS and JS animations more flexible. However, unlike earlier versions of AngularJS,\n * defining CSS and JS animations to work off of the same CSS class will not work anymore. Therefore the example below will only result in **JS animations taking\n * charge of the animation**:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"slide\">\n *   Slide in and out\n * </div>\n * ```\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     enter: function(element, doneFn) {\n *       jQuery(element).slideIn(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * ```css\n * .slide.ng-enter {\n *   transition:0.5s linear all;\n *   transform:translateY(-100px);\n * }\n * .slide.ng-enter.ng-enter-active {\n *   transform:translateY(0);\n * }\n * ```\n *\n * Does this mean that CSS and JS animations cannot be used together? Do JS-based animations always have higher priority? We can make up for the\n * lack of CSS animations by using the `$animateCss` service to trigger our own tweaked-out, CSS-based animations directly from\n * our own JS-based animation code:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n*        // this will trigger `.slide.ng-enter` and `.slide.ng-enter-active`.\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing here is that we can save bandwidth by sticking to our CSS-based animation code and we don't need to rely on a 3rd-party animation framework.\n *\n * The `$animateCss` service is very powerful since we can feed in all kinds of extra properties that will be evaluated and fed into a CSS transition or\n * keyframe animation. For example if we wanted to animate the height of an element while adding and removing classes then we can do so by providing that\n * data into `$animateCss` directly:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true,\n *         addClass: 'maroon-setting',\n *         from: { height:0 },\n *         to: { height: 200 }\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Now we can fill in the rest via our transition CSS code:\n *\n * ```css\n * /&#42; the transition tells ngAnimate to make the animation happen &#42;/\n * .slide.ng-enter { transition:0.5s linear all; }\n *\n * /&#42; this extra CSS class will be absorbed into the transition\n * since the $animateCss code is adding the class &#42;/\n * .maroon-setting { background:red; }\n * ```\n *\n * And `$animateCss` will figure out the rest. Just make sure to have the `done()` callback fire the `doneFn` function to signal when the animation is over.\n *\n * To learn more about what's possible be sure to visit the {@link ngAnimate.$animateCss $animateCss service}.\n *\n * ## Animation Anchoring (via `ng-animate-ref`)\n *\n * ngAnimate in AngularJS 1.4 comes packed with the ability to cross-animate elements between\n * structural areas of an application (like views) by pairing up elements using an attribute\n * called `ng-animate-ref`.\n *\n * Let's say for example we have two views that are managed by `ng-view` and we want to show\n * that there is a relationship between two components situated in within these views. By using the\n * `ng-animate-ref` attribute we can identify that the two components are paired together and we\n * can then attach an animation, which is triggered when the view changes.\n *\n * Say for example we have the following template code:\n *\n * ```html\n * <!-- index.html -->\n * <div ng-view class=\"view-animation\">\n * </div>\n *\n * <!-- home.html -->\n * <a href=\"#/banner-page\">\n *   <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * </a>\n *\n * <!-- banner-page.html -->\n * <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * ```\n *\n * Now, when the view changes (once the link is clicked), ngAnimate will examine the\n * HTML contents to see if there is a match reference between any components in the view\n * that is leaving and the view that is entering. It will scan both the view which is being\n * removed (leave) and inserted (enter) to see if there are any paired DOM elements that\n * contain a matching ref value.\n *\n * The two images match since they share the same ref value. ngAnimate will now create a\n * transport element (which is a clone of the first image element) and it will then attempt\n * to animate to the position of the second image element in the next view. For the animation to\n * work a special CSS class called `ng-anchor` will be added to the transported element.\n *\n * We can now attach a transition onto the `.banner.ng-anchor` CSS class and then\n * ngAnimate will handle the entire transition for us as well as the addition and removal of\n * any changes of CSS classes between the elements:\n *\n * ```css\n * .banner.ng-anchor {\n *   /&#42; this animation will last for 1 second since there are\n *          two phases to the animation (an `in` and an `out` phase) &#42;/\n *   transition:0.5s linear all;\n * }\n * ```\n *\n * We also **must** include animations for the views that are being entered and removed\n * (otherwise anchoring wouldn't be possible since the new view would be inserted right away).\n *\n * ```css\n * .view-animation.ng-enter, .view-animation.ng-leave {\n *   transition:0.5s linear all;\n *   position:fixed;\n *   left:0;\n *   top:0;\n *   width:100%;\n * }\n * .view-animation.ng-enter {\n *   transform:translateX(100%);\n * }\n * .view-animation.ng-leave,\n * .view-animation.ng-enter.ng-enter-active {\n *   transform:translateX(0%);\n * }\n * .view-animation.ng-leave.ng-leave-active {\n *   transform:translateX(-100%);\n * }\n * ```\n *\n * Now we can jump back to the anchor animation. When the animation happens, there are two stages that occur:\n * an `out` and an `in` stage. The `out` stage happens first and that is when the element is animated away\n * from its origin. Once that animation is over then the `in` stage occurs which animates the\n * element to its destination. The reason why there are two animations is to give enough time\n * for the enter animation on the new element to be ready.\n *\n * The example above sets up a transition for both the in and out phases, but we can also target the out or\n * in phases directly via `ng-anchor-out` and `ng-anchor-in`.\n *\n * ```css\n * .banner.ng-anchor-out {\n *   transition: 0.5s linear all;\n *\n *   /&#42; the scale will be applied during the out animation,\n *          but will be animated away when the in animation runs &#42;/\n *   transform: scale(1.2);\n * }\n *\n * .banner.ng-anchor-in {\n *   transition: 1s linear all;\n * }\n * ```\n *\n *\n *\n *\n * ### Anchoring Demo\n *\n  <example module=\"anchoringExample\"\n           name=\"anchoringExample\"\n           id=\"anchoringExample\"\n           deps=\"angular-animate.js;angular-route.js\"\n           animations=\"true\">\n    <file name=\"index.html\">\n      <a href=\"#!/\">Home</a>\n      <hr />\n      <div class=\"view-container\">\n        <div ng-view class=\"view\"></div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('anchoringExample', ['ngAnimate', 'ngRoute'])\n        .config(['$routeProvider', function($routeProvider) {\n          $routeProvider.when('/', {\n            templateUrl: 'home.html',\n            controller: 'HomeController as home'\n          });\n          $routeProvider.when('/profile/:id', {\n            templateUrl: 'profile.html',\n            controller: 'ProfileController as profile'\n          });\n        }])\n        .run(['$rootScope', function($rootScope) {\n          $rootScope.records = [\n            { id: 1, title: 'Miss Beulah Roob' },\n            { id: 2, title: 'Trent Morissette' },\n            { id: 3, title: 'Miss Ava Pouros' },\n            { id: 4, title: 'Rod Pouros' },\n            { id: 5, title: 'Abdul Rice' },\n            { id: 6, title: 'Laurie Rutherford Sr.' },\n            { id: 7, title: 'Nakia McLaughlin' },\n            { id: 8, title: 'Jordon Blanda DVM' },\n            { id: 9, title: 'Rhoda Hand' },\n            { id: 10, title: 'Alexandrea Sauer' }\n          ];\n        }])\n        .controller('HomeController', [function() {\n          //empty\n        }])\n        .controller('ProfileController', ['$rootScope', '$routeParams',\n            function ProfileController($rootScope, $routeParams) {\n          var index = parseInt($routeParams.id, 10);\n          var record = $rootScope.records[index - 1];\n\n          this.title = record.title;\n          this.id = record.id;\n        }]);\n    </file>\n    <file name=\"home.html\">\n      <h2>Welcome to the home page</h1>\n      <p>Please click on an element</p>\n      <a class=\"record\"\n         ng-href=\"#!/profile/{{ record.id }}\"\n         ng-animate-ref=\"{{ record.id }}\"\n         ng-repeat=\"record in records\">\n        {{ record.title }}\n      </a>\n    </file>\n    <file name=\"profile.html\">\n      <div class=\"profile record\" ng-animate-ref=\"{{ profile.id }}\">\n        {{ profile.title }}\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .record {\n        display:block;\n        font-size:20px;\n      }\n      .profile {\n        background:black;\n        color:white;\n        font-size:100px;\n      }\n      .view-container {\n        position:relative;\n      }\n      .view-container > .view.ng-animate {\n        position:absolute;\n        top:0;\n        left:0;\n        width:100%;\n        min-height:500px;\n      }\n      .view.ng-enter, .view.ng-leave,\n      .record.ng-anchor {\n        transition:0.5s linear all;\n      }\n      .view.ng-enter {\n        transform:translateX(100%);\n      }\n      .view.ng-enter.ng-enter-active, .view.ng-leave {\n        transform:translateX(0%);\n      }\n      .view.ng-leave.ng-leave-active {\n        transform:translateX(-100%);\n      }\n      .record.ng-anchor-out {\n        background:red;\n      }\n    </file>\n  </example>\n *\n * ### How is the element transported?\n *\n * When an anchor animation occurs, ngAnimate will clone the starting element and position it exactly where the starting\n * element is located on screen via absolute positioning. The cloned element will be placed inside of the root element\n * of the application (where ng-app was defined) and all of the CSS classes of the starting element will be applied. The\n * element will then animate into the `out` and `in` animations and will eventually reach the coordinates and match\n * the dimensions of the destination element. During the entire animation a CSS class of `.ng-animate-shim` will be applied\n * to both the starting and destination elements in order to hide them from being visible (the CSS styling for the class\n * is: `visibility:hidden`). Once the anchor reaches its destination then it will be removed and the destination element\n * will become visible since the shim class will be removed.\n *\n * ### How is the morphing handled?\n *\n * CSS Anchoring relies on transitions and keyframes and the internal code is intelligent enough to figure out\n * what CSS classes differ between the starting element and the destination element. These different CSS classes\n * will be added/removed on the anchor element and a transition will be applied (the transition that is provided\n * in the anchor class). Long story short, ngAnimate will figure out what classes to add and remove which will\n * make the transition of the element as smooth and automatic as possible. Be sure to use simple CSS classes that\n * do not rely on DOM nesting structure so that the anchor element appears the same as the starting element (since\n * the cloned element is placed inside of root element which is likely close to the body element).\n *\n * Note that if the root element is on the `<html>` element then the cloned node will be placed inside of body.\n *\n *\n * ## Using $animate in your directive code\n *\n * So far we've explored how to feed in animations into an AngularJS application, but how do we trigger animations within our own directives in our application?\n * By injecting the `$animate` service into our directive code, we can trigger structural and class-based hooks which can then be consumed by animations. Let's\n * imagine we have a greeting box that shows and hides itself when the data changes\n *\n * ```html\n * <greeting-box active=\"onOrOff\">Hi there</greeting-box>\n * ```\n *\n * ```js\n * ngModule.directive('greetingBox', ['$animate', function($animate) {\n *   return function(scope, element, attrs) {\n *     attrs.$observe('active', function(value) {\n *       value ? $animate.addClass(element, 'on') : $animate.removeClass(element, 'on');\n *     });\n *   });\n * }]);\n * ```\n *\n * Now the `on` CSS class is added and removed on the greeting box component. Now if we add a CSS class on top of the greeting box element\n * in our HTML code then we can trigger a CSS or JS animation to happen.\n *\n * ```css\n * /&#42; normally we would create a CSS class to reference on the element &#42;/\n * greeting-box.on { transition:0.5s linear all; background:green; color:white; }\n * ```\n *\n * The `$animate` service contains a variety of other methods like `enter`, `leave`, `animate` and `setClass`. To learn more about what's\n * possible be sure to visit the {@link ng.$animate $animate service API page}.\n *\n *\n * ## Callbacks and Promises\n *\n * When `$animate` is called it returns a promise that can be used to capture when the animation has ended. Therefore if we were to trigger\n * an animation (within our directive code) then we can continue performing directive and scope related activities after the animation has\n * ended by chaining onto the returned promise that animation method returns.\n *\n * ```js\n * // somewhere within the depths of the directive\n * $animate.enter(element, parent).then(function() {\n *   //the animation has completed\n * });\n * ```\n *\n * (Note that earlier versions of AngularJS prior to v1.4 required the promise code to be wrapped using `$scope.$apply(...)`. This is not the case\n * anymore.)\n *\n * In addition to the animation promise, we can also make use of animation-related callbacks within our directives and controller code by registering\n * an event listener using the `$animate` service. Let's say for example that an animation was triggered on our view\n * routing controller to hook into that:\n *\n * ```js\n * ngModule.controller('HomePageController', ['$animate', function($animate) {\n *   $animate.on('enter', ngViewElement, function(element) {\n *     // the animation for this route has completed\n *   }]);\n * }])\n * ```\n *\n * (Note that you will need to trigger a digest within the callback to get AngularJS to notice any scope-related changes.)\n */\n\nvar copy;\nvar extend;\nvar forEach;\nvar isArray;\nvar isDefined;\nvar isElement;\nvar isFunction;\nvar isObject;\nvar isString;\nvar isUndefined;\nvar jqLite;\nvar noop;\n\n/**\n * @ngdoc service\n * @name $animate\n * @kind object\n *\n * @description\n * The ngAnimate `$animate` service documentation is the same for the core `$animate` service.\n *\n * Click here {@link ng.$animate to learn more about animations with `$animate`}.\n */\nangular.module('ngAnimate', [], function initAngularHelpers() {\n  // Access helpers from AngularJS core.\n  // Do it inside a `config` block to ensure `window.angular` is available.\n  noop        = angular.noop;\n  copy        = angular.copy;\n  extend      = angular.extend;\n  jqLite      = angular.element;\n  forEach     = angular.forEach;\n  isArray     = angular.isArray;\n  isString    = angular.isString;\n  isObject    = angular.isObject;\n  isUndefined = angular.isUndefined;\n  isDefined   = angular.isDefined;\n  isFunction  = angular.isFunction;\n  isElement   = angular.isElement;\n})\n  .info({ angularVersion: '1.7.9' })\n  .directive('ngAnimateSwap', ngAnimateSwapDirective)\n\n  .directive('ngAnimateChildren', $$AnimateChildrenDirective)\n  .factory('$$rAFScheduler', $$rAFSchedulerFactory)\n\n  .provider('$$animateQueue', $$AnimateQueueProvider)\n  .provider('$$animateCache', $$AnimateCacheProvider)\n  .provider('$$animation', $$AnimationProvider)\n\n  .provider('$animateCss', $AnimateCssProvider)\n  .provider('$$animateCssDriver', $$AnimateCssDriverProvider)\n\n  .provider('$$animateJs', $$AnimateJsProvider)\n  .provider('$$animateJsDriver', $$AnimateJsDriverProvider);\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.7/angular-mocks.js",
    "content": "/**\n * @license AngularJS v1.7.9\n * (c) 2010-2018 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {\n\n'use strict';\n\n/* global routeToRegExp: true */\n\n/**\n * @param {string} path - The path to parse. (It is assumed to have query and hash stripped off.)\n * @param {Object} opts - Options.\n * @return {Object} - An object containing an array of path parameter names (`keys`) and a regular\n *     expression (`regexp`) that can be used to identify a matching URL and extract the path\n *     parameter values.\n *\n * @description\n * Parses the given path, extracting path parameter names and a regular expression to match URLs.\n *\n * Originally inspired by `pathRexp` in `visionmedia/express/lib/utils.js`.\n */\nfunction routeToRegExp(path, opts) {\n  var keys = [];\n\n  var pattern = path\n    .replace(/([().])/g, '\\\\$1')\n    .replace(/(\\/)?:(\\w+)(\\*\\?|[?*])?/g, function(_, slash, key, option) {\n      var optional = option === '?' || option === '*?';\n      var star = option === '*' || option === '*?';\n      keys.push({name: key, optional: optional});\n      slash = slash || '';\n      return (\n        (optional ? '(?:' + slash : slash + '(?:') +\n        (star ? '(.+?)' : '([^/]+)') +\n        (optional ? '?)?' : ')')\n      );\n    })\n    .replace(/([/$*])/g, '\\\\$1');\n\n  if (opts.ignoreTrailingSlashes) {\n    pattern = pattern.replace(/\\/+$/, '') + '/*';\n  }\n\n  return {\n    keys: keys,\n    regexp: new RegExp(\n      '^' + pattern + '(?:[?#]|$)',\n      opts.caseInsensitiveMatch ? 'i' : ''\n    )\n  };\n}\n\n'use strict';\n\n/* global routeToRegExp: false */\n\n/**\n * @ngdoc object\n * @name angular.mock\n * @description\n *\n * Namespace from 'angular-mocks.js' which contains testing related code.\n *\n */\nangular.mock = {};\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n *\n * @description\n * This service is a mock implementation of {@link ng.$browser}. It provides fake\n * implementation for commonly used browser apis that are hard to test, e.g. setTimeout, xhr,\n * cookies, etc.\n *\n * The api of this service is the same as that of the real {@link ng.$browser $browser}, except\n * that there are several helper methods available which can be used in tests.\n */\nangular.mock.$BrowserProvider = function() {\n  this.$get = [\n    '$log', '$$taskTrackerFactory',\n    function($log, $$taskTrackerFactory) {\n      return new angular.mock.$Browser($log, $$taskTrackerFactory);\n    }\n  ];\n};\n\nangular.mock.$Browser = function($log, $$taskTrackerFactory) {\n  var self = this;\n  var taskTracker = $$taskTrackerFactory($log);\n\n  this.isMock = true;\n  self.$$url = 'http://server/';\n  self.$$lastUrl = self.$$url; // used by url polling fn\n  self.pollFns = [];\n\n  // Task-tracking API\n  self.$$completeOutstandingRequest = taskTracker.completeTask;\n  self.$$incOutstandingRequestCount = taskTracker.incTaskCount;\n  self.notifyWhenNoOutstandingRequests = taskTracker.notifyWhenNoPendingTasks;\n\n  // register url polling fn\n\n  self.onUrlChange = function(listener) {\n    self.pollFns.push(\n      function() {\n        if (self.$$lastUrl !== self.$$url || self.$$state !== self.$$lastState) {\n          self.$$lastUrl = self.$$url;\n          self.$$lastState = self.$$state;\n          listener(self.$$url, self.$$state);\n        }\n      }\n    );\n\n    return listener;\n  };\n\n  self.$$applicationDestroyed = angular.noop;\n  self.$$checkUrlChange = angular.noop;\n\n  self.deferredFns = [];\n  self.deferredNextId = 0;\n\n  self.defer = function(fn, delay, taskType) {\n    var timeoutId = self.deferredNextId++;\n\n    delay = delay || 0;\n    taskType = taskType || taskTracker.DEFAULT_TASK_TYPE;\n\n    taskTracker.incTaskCount(taskType);\n    self.deferredFns.push({\n      id: timeoutId,\n      type: taskType,\n      time: (self.defer.now + delay),\n      fn: fn\n    });\n    self.deferredFns.sort(function(a, b) { return a.time - b.time; });\n\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.now\n   *\n   * @description\n   * Current milliseconds mock time.\n   */\n  self.defer.now = 0;\n\n\n  self.defer.cancel = function(deferId) {\n    var taskIndex;\n\n    angular.forEach(self.deferredFns, function(task, index) {\n      if (task.id === deferId) taskIndex = index;\n    });\n\n    if (angular.isDefined(taskIndex)) {\n      var task = self.deferredFns.splice(taskIndex, 1)[0];\n      taskTracker.completeTask(angular.noop, task.type);\n      return true;\n    }\n\n    return false;\n  };\n\n\n  /**\n   * @name $browser#defer.flush\n   *\n   * @description\n   * Flushes all pending requests and executes the defer callbacks.\n   *\n   * See {@link ngMock.$flushPendingsTasks} for more info.\n   *\n   * @param {number=} number of milliseconds to flush. See {@link #defer.now}\n   */\n  self.defer.flush = function(delay) {\n    var nextTime;\n\n    if (angular.isDefined(delay)) {\n      // A delay was passed so compute the next time\n      nextTime = self.defer.now + delay;\n    } else if (self.deferredFns.length) {\n      // No delay was passed so set the next time so that it clears the deferred queue\n      nextTime = self.deferredFns[self.deferredFns.length - 1].time;\n    } else {\n      // No delay passed, but there are no deferred tasks so flush - indicates an error!\n      throw new Error('No deferred tasks to be flushed');\n    }\n\n    while (self.deferredFns.length && self.deferredFns[0].time <= nextTime) {\n      // Increment the time and call the next deferred function\n      self.defer.now = self.deferredFns[0].time;\n      var task = self.deferredFns.shift();\n      taskTracker.completeTask(task.fn, task.type);\n    }\n\n    // Ensure that the current time is correct\n    self.defer.now = nextTime;\n  };\n\n  /**\n   * @name $browser#defer.getPendingTasks\n   *\n   * @description\n   * Returns the currently pending tasks that need to be flushed.\n   * You can request a specific type of tasks only, by specifying a `taskType`.\n   *\n   * @param {string=} taskType - The type tasks to return.\n   */\n  self.defer.getPendingTasks = function(taskType) {\n    return !taskType\n        ? self.deferredFns\n        : self.deferredFns.filter(function(task) { return task.type === taskType; });\n  };\n\n  /**\n   * @name $browser#defer.formatPendingTasks\n   *\n   * @description\n   * Formats each task in a list of pending tasks as a string, suitable for use in error messages.\n   *\n   * @param {Array<Object>} pendingTasks - A list of task objects.\n   * @return {Array<string>} A list of stringified tasks.\n   */\n  self.defer.formatPendingTasks = function(pendingTasks) {\n    return pendingTasks.map(function(task) {\n      return '{id: ' + task.id + ', type: ' + task.type + ', time: ' + task.time + '}';\n    });\n  };\n\n  /**\n   * @name $browser#defer.verifyNoPendingTasks\n   *\n   * @description\n   * Verifies that there are no pending tasks that need to be flushed.\n   * You can check for a specific type of tasks only, by specifying a `taskType`.\n   *\n   * See {@link $verifyNoPendingTasks} for more info.\n   *\n   * @param {string=} taskType - The type tasks to check for.\n   */\n  self.defer.verifyNoPendingTasks = function(taskType) {\n    var pendingTasks = self.defer.getPendingTasks(taskType);\n\n    if (pendingTasks.length) {\n      var formattedTasks = self.defer.formatPendingTasks(pendingTasks).join('\\n  ');\n      throw new Error('Deferred tasks to flush (' + pendingTasks.length + '):\\n  ' +\n          formattedTasks);\n    }\n  };\n\n  self.$$baseHref = '/';\n  self.baseHref = function() {\n    return this.$$baseHref;\n  };\n};\nangular.mock.$Browser.prototype = {\n\n  /**\n   * @name $browser#poll\n   *\n   * @description\n   * run all fns in pollFns\n   */\n  poll: function poll() {\n    angular.forEach(this.pollFns, function(pollFn) {\n      pollFn();\n    });\n  },\n\n  url: function(url, replace, state) {\n    if (angular.isUndefined(state)) {\n      state = null;\n    }\n    if (url) {\n      // The `$browser` service trims empty hashes; simulate it.\n      this.$$url = url.replace(/#$/, '');\n      // Native pushState serializes & copies the object; simulate it.\n      this.$$state = angular.copy(state);\n      return this;\n    }\n\n    return this.$$url;\n  },\n\n  state: function() {\n    return this.$$state;\n  }\n};\n\n/**\n * @ngdoc service\n * @name $flushPendingTasks\n *\n * @description\n * Flushes all currently pending tasks and executes the corresponding callbacks.\n *\n * Optionally, you can also pass a `delay` argument to only flush tasks that are scheduled to be\n * executed within `delay` milliseconds. Currently, `delay` only applies to timeouts, since all\n * other tasks have a delay of 0 (i.e. they are scheduled to be executed as soon as possible, but\n * still asynchronously).\n *\n * If no delay is specified, it uses a delay such that all currently pending tasks are flushed.\n *\n * The types of tasks that are flushed include:\n *\n * - Pending timeouts (via {@link $timeout}).\n * - Pending tasks scheduled via {@link ng.$rootScope.Scope#$applyAsync $applyAsync}.\n * - Pending tasks scheduled via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}.\n *   These include tasks scheduled via `$evalAsync()` indirectly (such as {@link $q} promises).\n *\n * <div class=\"alert alert-info\">\n *   Periodic tasks scheduled via {@link $interval} use a different queue and are not flushed by\n *   `$flushPendingTasks()`. Use {@link ngMock.$interval#flush $interval.flush(millis)} instead.\n * </div>\n *\n * @param {number=} delay - The number of milliseconds to flush.\n */\nangular.mock.$FlushPendingTasksProvider = function() {\n  this.$get = [\n    '$browser',\n    function($browser) {\n      return function $flushPendingTasks(delay) {\n        return $browser.defer.flush(delay);\n      };\n    }\n  ];\n};\n\n/**\n * @ngdoc service\n * @name $verifyNoPendingTasks\n *\n * @description\n * Verifies that there are no pending tasks that need to be flushed. It throws an error if there are\n * still pending tasks.\n *\n * You can check for a specific type of tasks only, by specifying a `taskType`.\n *\n * Available task types:\n *\n * - `$timeout`: Pending timeouts (via {@link $timeout}).\n * - `$http`: Pending HTTP requests (via {@link $http}).\n * - `$route`: In-progress route transitions (via {@link $route}).\n * - `$applyAsync`: Pending tasks scheduled via {@link ng.$rootScope.Scope#$applyAsync $applyAsync}.\n * - `$evalAsync`: Pending tasks scheduled via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}.\n *   These include tasks scheduled via `$evalAsync()` indirectly (such as {@link $q} promises).\n *\n * <div class=\"alert alert-info\">\n *   Periodic tasks scheduled via {@link $interval} use a different queue and are not taken into\n *   account by `$verifyNoPendingTasks()`. There is currently no way to verify that there are no\n *   pending {@link $interval} tasks.\n * </div>\n *\n * @param {string=} taskType - The type of tasks to check for.\n */\nangular.mock.$VerifyNoPendingTasksProvider = function() {\n  this.$get = [\n    '$browser',\n    function($browser) {\n      return function $verifyNoPendingTasks(taskType) {\n        return $browser.defer.verifyNoPendingTasks(taskType);\n      };\n    }\n  ];\n};\n\n/**\n * @ngdoc provider\n * @name $exceptionHandlerProvider\n *\n * @description\n * Configures the mock implementation of {@link ng.$exceptionHandler} to rethrow or to log errors\n * passed to the `$exceptionHandler`.\n */\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n *\n * @description\n * Mock implementation of {@link ng.$exceptionHandler} that rethrows or logs errors passed\n * to it. See {@link ngMock.$exceptionHandlerProvider $exceptionHandlerProvider} for configuration\n * information.\n *\n *\n * ```js\n *   describe('$exceptionHandlerProvider', function() {\n *\n *     it('should capture log messages and exceptions', function() {\n *\n *       module(function($exceptionHandlerProvider) {\n *         $exceptionHandlerProvider.mode('log');\n *       });\n *\n *       inject(function($log, $exceptionHandler, $timeout) {\n *         $timeout(function() { $log.log(1); });\n *         $timeout(function() { $log.log(2); throw 'banana peel'; });\n *         $timeout(function() { $log.log(3); });\n *         expect($exceptionHandler.errors).toEqual([]);\n *         expect($log.assertEmpty());\n *         $timeout.flush();\n *         expect($exceptionHandler.errors).toEqual(['banana peel']);\n *         expect($log.log.logs).toEqual([[1], [2], [3]]);\n *       });\n *     });\n *   });\n * ```\n */\n\nangular.mock.$ExceptionHandlerProvider = function() {\n  var handler;\n\n  /**\n   * @ngdoc method\n   * @name $exceptionHandlerProvider#mode\n   *\n   * @description\n   * Sets the logging mode.\n   *\n   * @param {string} mode Mode of operation, defaults to `rethrow`.\n   *\n   *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log`\n   *     mode stores an array of errors in `$exceptionHandler.errors`, to allow later assertion of\n   *     them. See {@link ngMock.$log#assertEmpty assertEmpty()} and\n   *     {@link ngMock.$log#reset reset()}.\n   *   - `rethrow`: If any errors are passed to the handler in tests, it typically means that there\n   *     is a bug in the application or test, so this mock will make these tests fail. For any\n   *     implementations that expect exceptions to be thrown, the `rethrow` mode will also maintain\n   *     a log of thrown errors in `$exceptionHandler.errors`.\n   */\n  this.mode = function(mode) {\n\n    switch (mode) {\n      case 'log':\n      case 'rethrow':\n        var errors = [];\n        handler = function(e) {\n          if (arguments.length === 1) {\n            errors.push(e);\n          } else {\n            errors.push([].slice.call(arguments, 0));\n          }\n          if (mode === 'rethrow') {\n            throw e;\n          }\n        };\n        handler.errors = errors;\n        break;\n      default:\n        throw new Error('Unknown mode \\'' + mode + '\\', only \\'log\\'/\\'rethrow\\' modes are allowed!');\n    }\n  };\n\n  this.$get = function() {\n    return handler;\n  };\n\n  this.mode('rethrow');\n};\n\n\n/**\n * @ngdoc service\n * @name $log\n *\n * @description\n * Mock implementation of {@link ng.$log} that gathers all logged messages in arrays\n * (one array per logging level). These arrays are exposed as `logs` property of each of the\n * level-specific log function, e.g. for level `error` the array is exposed as `$log.error.logs`.\n *\n */\nangular.mock.$LogProvider = function() {\n  var debug = true;\n\n  function concat(array1, array2, index) {\n    return array1.concat(Array.prototype.slice.call(array2, index));\n  }\n\n  this.debugEnabled = function(flag) {\n    if (angular.isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = function() {\n    var $log = {\n      log: function() { $log.log.logs.push(concat([], arguments, 0)); },\n      warn: function() { $log.warn.logs.push(concat([], arguments, 0)); },\n      info: function() { $log.info.logs.push(concat([], arguments, 0)); },\n      error: function() { $log.error.logs.push(concat([], arguments, 0)); },\n      debug: function() {\n        if (debug) {\n          $log.debug.logs.push(concat([], arguments, 0));\n        }\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#reset\n     *\n     * @description\n     * Reset all of the logging arrays to empty.\n     */\n    $log.reset = function() {\n      /**\n       * @ngdoc property\n       * @name $log#log.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#log `log()`}.\n       *\n       * @example\n       * ```js\n       * $log.log('Some Log');\n       * var first = $log.log.logs.unshift();\n       * ```\n       */\n      $log.log.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#info.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#info `info()`}.\n       *\n       * @example\n       * ```js\n       * $log.info('Some Info');\n       * var first = $log.info.logs.unshift();\n       * ```\n       */\n      $log.info.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#warn.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#warn `warn()`}.\n       *\n       * @example\n       * ```js\n       * $log.warn('Some Warning');\n       * var first = $log.warn.logs.unshift();\n       * ```\n       */\n      $log.warn.logs = [];\n      /**\n       * @ngdoc property\n       * @name $log#error.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#error `error()`}.\n       *\n       * @example\n       * ```js\n       * $log.error('Some Error');\n       * var first = $log.error.logs.unshift();\n       * ```\n       */\n      $log.error.logs = [];\n        /**\n       * @ngdoc property\n       * @name $log#debug.logs\n       *\n       * @description\n       * Array of messages logged using {@link ng.$log#debug `debug()`}.\n       *\n       * @example\n       * ```js\n       * $log.debug('Some Error');\n       * var first = $log.debug.logs.unshift();\n       * ```\n       */\n      $log.debug.logs = [];\n    };\n\n    /**\n     * @ngdoc method\n     * @name $log#assertEmpty\n     *\n     * @description\n     * Assert that all of the logging methods have no logged messages. If any messages are present,\n     * an exception is thrown.\n     */\n    $log.assertEmpty = function() {\n      var errors = [];\n      angular.forEach(['error', 'warn', 'info', 'log', 'debug'], function(logLevel) {\n        angular.forEach($log[logLevel].logs, function(log) {\n          angular.forEach(log, function(logItem) {\n            errors.push('MOCK $log (' + logLevel + '): ' + String(logItem) + '\\n' +\n                        (logItem.stack || ''));\n          });\n        });\n      });\n      if (errors.length) {\n        errors.unshift('Expected $log to be empty! Either a message was logged unexpectedly, or ' +\n          'an expected log message was not checked and removed:');\n        errors.push('');\n        throw new Error(errors.join('\\n---------\\n'));\n      }\n    };\n\n    $log.reset();\n    return $log;\n  };\n};\n\n\n/**\n * @ngdoc service\n * @name $interval\n *\n * @description\n * Mock implementation of the $interval service.\n *\n * Use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n * time.\n *\n * @param {function()} fn A function that should be called repeatedly.\n * @param {number} delay Number of milliseconds between each function call.\n * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n *   indefinitely.\n * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n * @param {...*=} Pass additional parameters to the executed function.\n * @returns {promise} A promise which will be notified on each iteration.\n */\nangular.mock.$IntervalProvider = function() {\n  this.$get = ['$browser', '$$intervalFactory',\n       function($browser,   $$intervalFactory) {\n    var repeatFns = [],\n        nextRepeatId = 0,\n        now = 0,\n        setIntervalFn = function(tick, delay, deferred, skipApply) {\n          var id = nextRepeatId++;\n          var fn = !skipApply ? tick : function() {\n            tick();\n            $browser.defer.flush();\n          };\n\n          repeatFns.push({\n            nextTime: (now + (delay || 0)),\n            delay: delay || 1,\n            fn: fn,\n            id: id,\n            deferred: deferred\n          });\n          repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime; });\n\n          return id;\n        },\n        clearIntervalFn = function(id) {\n          for (var fnIndex = repeatFns.length - 1; fnIndex >= 0; fnIndex--) {\n            if (repeatFns[fnIndex].id === id) {\n              repeatFns.splice(fnIndex, 1);\n              break;\n            }\n          }\n        };\n\n    var $interval = $$intervalFactory(setIntervalFn, clearIntervalFn);\n\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {promise} promise A promise from calling the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully cancelled.\n     */\n    $interval.cancel = function(promise) {\n      if (!promise) return false;\n\n      for (var fnIndex = repeatFns.length - 1; fnIndex >= 0; fnIndex--) {\n        if (repeatFns[fnIndex].id === promise.$$intervalId) {\n          var deferred = repeatFns[fnIndex].deferred;\n          deferred.promise.then(undefined, function() {});\n          deferred.reject('canceled');\n          repeatFns.splice(fnIndex, 1);\n          return true;\n        }\n      }\n\n      return false;\n    };\n\n    /**\n     * @ngdoc method\n     * @name $interval#flush\n     * @description\n     *\n     * Runs interval tasks scheduled to be run in the next `millis` milliseconds.\n     *\n     * @param {number} millis maximum timeout amount to flush up until.\n     *\n     * @return {number} The amount of time moved forward.\n     */\n    $interval.flush = function(millis) {\n      var before = now;\n      now += millis;\n      while (repeatFns.length && repeatFns[0].nextTime <= now) {\n        var task = repeatFns[0];\n        task.fn();\n        if (task.nextTime === before) {\n          // this can only happen the first time\n          // a zero-delay interval gets triggered\n          task.nextTime++;\n        }\n        task.nextTime += task.delay;\n        repeatFns.sort(function(a, b) { return a.nextTime - b.nextTime;});\n      }\n      return millis;\n    };\n\n    return $interval;\n  }];\n};\n\n\nfunction jsonStringToDate(string) {\n  // The R_ISO8061_STR regex is never going to fit into the 100 char limit!\n  // eslit-disable-next-line max-len\n  var R_ISO8061_STR = /^(-?\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d{3}))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d)))?$/;\n\n  var match;\n  if ((match = string.match(R_ISO8061_STR))) {\n    var date = new Date(0),\n        tzHour = 0,\n        tzMin  = 0;\n    if (match[9]) {\n      tzHour = toInt(match[9] + match[10]);\n      tzMin = toInt(match[9] + match[11]);\n    }\n    date.setUTCFullYear(toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n    date.setUTCHours(toInt(match[4] || 0) - tzHour,\n                     toInt(match[5] || 0) - tzMin,\n                     toInt(match[6] || 0),\n                     toInt(match[7] || 0));\n    return date;\n  }\n  return string;\n}\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nfunction padNumberInMock(num, digits, trim) {\n  var neg = '';\n  if (num < 0) {\n    neg =  '-';\n    num = -num;\n  }\n  num = '' + num;\n  while (num.length < digits) num = '0' + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\n/**\n * @ngdoc type\n * @name angular.mock.TzDate\n * @description\n *\n * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.\n *\n * Mock of the Date type which has its timezone specified via constructor arg.\n *\n * The main purpose is to create Date-like instances with timezone fixed to the specified timezone\n * offset, so that we can test code that depends on local timezone settings without dependency on\n * the time zone settings of the machine where the code is running.\n *\n * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)\n * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*\n *\n * @example\n * !!!! WARNING !!!!!\n * This is not a complete Date object so only methods that were implemented can be called safely.\n * To make matters worse, TzDate instances inherit stuff from Date via a prototype.\n *\n * We do our best to intercept calls to \"unimplemented\" methods, but since the list of methods is\n * incomplete we might be missing some non-standard methods. This can result in errors like:\n * \"Date.prototype.foo called on incompatible Object\".\n *\n * ```js\n * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');\n * newYearInBratislava.getTimezoneOffset() => -60;\n * newYearInBratislava.getFullYear() => 2010;\n * newYearInBratislava.getMonth() => 0;\n * newYearInBratislava.getDate() => 1;\n * newYearInBratislava.getHours() => 0;\n * newYearInBratislava.getMinutes() => 0;\n * newYearInBratislava.getSeconds() => 0;\n * ```\n *\n */\nangular.mock.TzDate = function(offset, timestamp) {\n  var self = new Date(0);\n  if (angular.isString(timestamp)) {\n    var tsStr = timestamp;\n\n    self.origDate = jsonStringToDate(timestamp);\n\n    timestamp = self.origDate.getTime();\n    if (isNaN(timestamp)) {\n      // eslint-disable-next-line no-throw-literal\n      throw {\n        name: 'Illegal Argument',\n        message: 'Arg \\'' + tsStr + '\\' passed into TzDate constructor is not a valid date string'\n      };\n    }\n  } else {\n    self.origDate = new Date(timestamp);\n  }\n\n  var localOffset = new Date(timestamp).getTimezoneOffset();\n  self.offsetDiff = localOffset * 60 * 1000 - offset * 1000 * 60 * 60;\n  self.date = new Date(timestamp + self.offsetDiff);\n\n  self.getTime = function() {\n    return self.date.getTime() - self.offsetDiff;\n  };\n\n  self.toLocaleDateString = function() {\n    return self.date.toLocaleDateString();\n  };\n\n  self.getFullYear = function() {\n    return self.date.getFullYear();\n  };\n\n  self.getMonth = function() {\n    return self.date.getMonth();\n  };\n\n  self.getDate = function() {\n    return self.date.getDate();\n  };\n\n  self.getHours = function() {\n    return self.date.getHours();\n  };\n\n  self.getMinutes = function() {\n    return self.date.getMinutes();\n  };\n\n  self.getSeconds = function() {\n    return self.date.getSeconds();\n  };\n\n  self.getMilliseconds = function() {\n    return self.date.getMilliseconds();\n  };\n\n  self.getTimezoneOffset = function() {\n    return offset * 60;\n  };\n\n  self.getUTCFullYear = function() {\n    return self.origDate.getUTCFullYear();\n  };\n\n  self.getUTCMonth = function() {\n    return self.origDate.getUTCMonth();\n  };\n\n  self.getUTCDate = function() {\n    return self.origDate.getUTCDate();\n  };\n\n  self.getUTCHours = function() {\n    return self.origDate.getUTCHours();\n  };\n\n  self.getUTCMinutes = function() {\n    return self.origDate.getUTCMinutes();\n  };\n\n  self.getUTCSeconds = function() {\n    return self.origDate.getUTCSeconds();\n  };\n\n  self.getUTCMilliseconds = function() {\n    return self.origDate.getUTCMilliseconds();\n  };\n\n  self.getDay = function() {\n    return self.date.getDay();\n  };\n\n  // provide this method only on browsers that already have it\n  if (self.toISOString) {\n    self.toISOString = function() {\n      return padNumberInMock(self.origDate.getUTCFullYear(), 4) + '-' +\n            padNumberInMock(self.origDate.getUTCMonth() + 1, 2) + '-' +\n            padNumberInMock(self.origDate.getUTCDate(), 2) + 'T' +\n            padNumberInMock(self.origDate.getUTCHours(), 2) + ':' +\n            padNumberInMock(self.origDate.getUTCMinutes(), 2) + ':' +\n            padNumberInMock(self.origDate.getUTCSeconds(), 2) + '.' +\n            padNumberInMock(self.origDate.getUTCMilliseconds(), 3) + 'Z';\n    };\n  }\n\n  //hide all methods not implemented in this mock that the Date prototype exposes\n  var unimplementedMethods = ['getUTCDay',\n      'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',\n      'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',\n      'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',\n      'setYear', 'toDateString', 'toGMTString', 'toJSON', 'toLocaleFormat', 'toLocaleString',\n      'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];\n\n  angular.forEach(unimplementedMethods, function(methodName) {\n    self[methodName] = function() {\n      throw new Error('Method \\'' + methodName + '\\' is not implemented in the TzDate mock');\n    };\n  });\n\n  return self;\n};\n\n//make \"tzDateInstance instanceof Date\" return true\nangular.mock.TzDate.prototype = Date.prototype;\n\n\n/**\n * @ngdoc service\n * @name $animate\n *\n * @description\n * Mock implementation of the {@link ng.$animate `$animate`} service. Exposes two additional methods\n * for testing animations.\n *\n * You need to require the `ngAnimateMock` module in your test suite for instance `beforeEach(module('ngAnimateMock'))`\n */\nangular.mock.animate = angular.module('ngAnimateMock', ['ng'])\n  .info({ angularVersion: '1.7.9' })\n\n  .config(['$provide', function($provide) {\n\n    $provide.factory('$$forceReflow', function() {\n      function reflowFn() {\n        reflowFn.totalReflows++;\n      }\n      reflowFn.totalReflows = 0;\n      return reflowFn;\n    });\n\n    $provide.factory('$$animateAsyncRun', function() {\n      var queue = [];\n      var queueFn = function() {\n        return function(fn) {\n          queue.push(fn);\n        };\n      };\n      queueFn.flush = function() {\n        if (queue.length === 0) return false;\n\n        for (var i = 0; i < queue.length; i++) {\n          queue[i]();\n        }\n        queue = [];\n\n        return true;\n      };\n      return queueFn;\n    });\n\n    $provide.decorator('$$animateJs', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateJsConstructor = function() {\n        var animator = $delegate.apply($delegate, arguments);\n        // If no javascript animation is found, animator is undefined\n        if (animator) {\n          runners.push(animator);\n        }\n        return animator;\n      };\n\n      animateJsConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateJsConstructor;\n    }]);\n\n    $provide.decorator('$animateCss', ['$delegate', function($delegate) {\n      var runners = [];\n\n      var animateCssConstructor = function(element, options) {\n        var animator = $delegate(element, options);\n        runners.push(animator);\n        return animator;\n      };\n\n      animateCssConstructor.$closeAndFlush = function() {\n        runners.forEach(function(runner) {\n          runner.end();\n        });\n        runners = [];\n      };\n\n      return animateCssConstructor;\n    }]);\n\n    $provide.decorator('$animate', ['$delegate', '$timeout', '$browser', '$$rAF', '$animateCss', '$$animateJs',\n                                    '$$forceReflow', '$$animateAsyncRun', '$rootScope',\n                            function($delegate,   $timeout,   $browser,   $$rAF,   $animateCss,   $$animateJs,\n                                     $$forceReflow,   $$animateAsyncRun,  $rootScope) {\n      var animate = {\n        queue: [],\n        cancel: $delegate.cancel,\n        on: $delegate.on,\n        off: $delegate.off,\n        pin: $delegate.pin,\n        get reflows() {\n          return $$forceReflow.totalReflows;\n        },\n        enabled: $delegate.enabled,\n        /**\n         * @ngdoc method\n         * @name $animate#closeAndFlush\n         * @description\n         *\n         * This method will close all pending animations (both {@link ngAnimate#javascript-based-animations Javascript}\n         * and {@link ngAnimate.$animateCss CSS}) and it will also flush any remaining animation frames and/or callbacks.\n         */\n        closeAndFlush: function() {\n          // we allow the flush command to swallow the errors\n          // because depending on whether CSS or JS animations are\n          // used, there may not be a RAF flush. The primary flush\n          // at the end of this function must throw an exception\n          // because it will track if there were pending animations\n          this.flush(true);\n          $animateCss.$closeAndFlush();\n          $$animateJs.$closeAndFlush();\n          this.flush();\n        },\n        /**\n         * @ngdoc method\n         * @name $animate#flush\n         * @description\n         *\n         * This method is used to flush the pending callbacks and animation frames to either start\n         * an animation or conclude an animation. Note that this will not actually close an\n         * actively running animation (see {@link ngMock.$animate#closeAndFlush `closeAndFlush()`} for that).\n         */\n        flush: function(hideErrors) {\n          $rootScope.$digest();\n\n          var doNextRun, somethingFlushed = false;\n          do {\n            doNextRun = false;\n\n            if ($$rAF.queue.length) {\n              $$rAF.flush();\n              doNextRun = somethingFlushed = true;\n            }\n\n            if ($$animateAsyncRun.flush()) {\n              doNextRun = somethingFlushed = true;\n            }\n          } while (doNextRun);\n\n          if (!somethingFlushed && !hideErrors) {\n            throw new Error('No pending animations ready to be closed or flushed');\n          }\n\n          $rootScope.$digest();\n        }\n      };\n\n      angular.forEach(\n        ['animate','enter','leave','move','addClass','removeClass','setClass'], function(method) {\n        animate[method] = function() {\n          animate.queue.push({\n            event: method,\n            element: arguments[0],\n            options: arguments[arguments.length - 1],\n            args: arguments\n          });\n          return $delegate[method].apply($delegate, arguments);\n        };\n      });\n\n      return animate;\n    }]);\n\n  }]);\n\n\n/**\n * @ngdoc function\n * @name angular.mock.dump\n * @description\n *\n * *NOTE*: This is not an injectable instance, just a globally available function.\n *\n * Method for serializing common AngularJS objects (scope, elements, etc..) into strings.\n * It is useful for logging objects to the console when debugging.\n *\n * @param {*} object - any object to turn into string.\n * @return {string} a serialized string of the argument\n */\nangular.mock.dump = function(object) {\n  return serialize(object);\n\n  function serialize(object) {\n    var out;\n\n    if (angular.isElement(object)) {\n      object = angular.element(object);\n      out = angular.element('<div></div>');\n      angular.forEach(object, function(element) {\n        out.append(angular.element(element).clone());\n      });\n      out = out.html();\n    } else if (angular.isArray(object)) {\n      out = [];\n      angular.forEach(object, function(o) {\n        out.push(serialize(o));\n      });\n      out = '[ ' + out.join(', ') + ' ]';\n    } else if (angular.isObject(object)) {\n      if (angular.isFunction(object.$eval) && angular.isFunction(object.$apply)) {\n        out = serializeScope(object);\n      } else if (object instanceof Error) {\n        out = object.stack || ('' + object.name + ': ' + object.message);\n      } else {\n        // TODO(i): this prevents methods being logged,\n        // we should have a better way to serialize objects\n        out = angular.toJson(object, true);\n      }\n    } else {\n      out = String(object);\n    }\n\n    return out;\n  }\n\n  function serializeScope(scope, offset) {\n    offset = offset ||  '  ';\n    var log = [offset + 'Scope(' + scope.$id + '): {'];\n    for (var key in scope) {\n      if (Object.prototype.hasOwnProperty.call(scope, key) && !key.match(/^(\\$|this)/)) {\n        log.push('  ' + key + ': ' + angular.toJson(scope[key]));\n      }\n    }\n    var child = scope.$$childHead;\n    while (child) {\n      log.push(serializeScope(child, offset + '  '));\n      child = child.$$nextSibling;\n    }\n    log.push('}');\n    return log.join('\\n' + offset);\n  }\n};\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @description\n * Fake HTTP backend implementation suitable for unit testing applications that use the\n * {@link ng.$http $http service}.\n *\n * <div class=\"alert alert-info\">\n * **Note**: For fake HTTP backend implementation suitable for end-to-end testing or backend-less\n * development please see {@link ngMockE2E.$httpBackend e2e $httpBackend mock}.\n * </div>\n *\n * During unit testing, we want our unit tests to run quickly and have no external dependencies so\n * we don’t want to send [XHR](https://developer.mozilla.org/en/xmlhttprequest) or\n * [JSONP](http://en.wikipedia.org/wiki/JSONP) requests to a real server. All we really need is\n * to verify whether a certain request has been sent or not, or alternatively just let the\n * application make requests, respond with pre-trained responses and assert that the end result is\n * what we expect it to be.\n *\n * This mock implementation can be used to respond with static or dynamic responses via the\n * `expect` and `when` apis and their shortcuts (`expectGET`, `whenPOST`, etc).\n *\n * When an AngularJS application needs some data from a server, it calls the $http service, which\n * sends the request to a real server using $httpBackend service. With dependency injection, it is\n * easy to inject $httpBackend mock (which has the same API as $httpBackend) and use it to verify\n * the requests and respond with some testing data without sending a request to a real server.\n *\n * There are two ways to specify what test data should be returned as http responses by the mock\n * backend when the code under test makes http requests:\n *\n * - `$httpBackend.expect` - specifies a request expectation\n * - `$httpBackend.when` - specifies a backend definition\n *\n *\n * ## Request Expectations vs Backend Definitions\n *\n * Request expectations provide a way to make assertions about requests made by the application and\n * to define responses for those requests. The test will fail if the expected requests are not made\n * or they are made in the wrong order.\n *\n * Backend definitions allow you to define a fake backend for your application which doesn't assert\n * if a particular request was made or not, it just returns a trained response if a request is made.\n * The test will pass whether or not the request gets made during testing.\n *\n *\n * <table class=\"table\">\n *   <tr><th width=\"220px\"></th><th>Request expectations</th><th>Backend definitions</th></tr>\n *   <tr>\n *     <th>Syntax</th>\n *     <td>.expect(...).respond(...)</td>\n *     <td>.when(...).respond(...)</td>\n *   </tr>\n *   <tr>\n *     <th>Typical usage</th>\n *     <td>strict unit tests</td>\n *     <td>loose (black-box) unit testing</td>\n *   </tr>\n *   <tr>\n *     <th>Fulfills multiple requests</th>\n *     <td>NO</td>\n *     <td>YES</td>\n *   </tr>\n *   <tr>\n *     <th>Order of requests matters</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Request required</th>\n *     <td>YES</td>\n *     <td>NO</td>\n *   </tr>\n *   <tr>\n *     <th>Response required</th>\n *     <td>optional (see below)</td>\n *     <td>YES</td>\n *   </tr>\n * </table>\n *\n * In cases where both backend definitions and request expectations are specified during unit\n * testing, the request expectations are evaluated first.\n *\n * If a request expectation has no response specified, the algorithm will search your backend\n * definitions for an appropriate response.\n *\n * If a request didn't match any expectation or if the expectation doesn't have the response\n * defined, the backend definitions are evaluated in sequential order to see if any of them match\n * the request. The response from the first matched definition is returned.\n *\n *\n * ## Flushing HTTP requests\n *\n * The $httpBackend used in production always responds to requests asynchronously. If we preserved\n * this behavior in unit testing, we'd have to create async unit tests, which are hard to write,\n * to follow and to maintain. But neither can the testing mock respond synchronously; that would\n * change the execution of the code under test. For this reason, the mock $httpBackend has a\n * `flush()` method, which allows the test to explicitly flush pending requests. This preserves\n * the async api of the backend, while allowing the test to execute synchronously.\n *\n *\n * ## Unit testing with mock $httpBackend\n * The following code shows how to setup and use the mock backend when unit testing a controller.\n * First we create the controller under test:\n *\n  ```js\n  // The module code\n  angular\n    .module('MyApp', [])\n    .controller('MyController', MyController);\n\n  // The controller code\n  function MyController($scope, $http) {\n    var authToken;\n\n    $http.get('/auth.py').then(function(response) {\n      authToken = response.headers('A-Token');\n      $scope.user = response.data;\n    }).catch(function() {\n      $scope.status = 'Failed...';\n    });\n\n    $scope.saveMessage = function(message) {\n      var headers = { 'Authorization': authToken };\n      $scope.status = 'Saving...';\n\n      $http.post('/add-msg.py', message, { headers: headers } ).then(function(response) {\n        $scope.status = '';\n      }).catch(function() {\n        $scope.status = 'Failed...';\n      });\n    };\n  }\n  ```\n *\n * Now we setup the mock backend and create the test specs:\n *\n  ```js\n    // testing controller\n    describe('MyController', function() {\n       var $httpBackend, $rootScope, createController, authRequestHandler;\n\n       // Set up the module\n       beforeEach(module('MyApp'));\n\n       beforeEach(inject(function($injector) {\n         // Set up the mock http service responses\n         $httpBackend = $injector.get('$httpBackend');\n         // backend definition common for all tests\n         authRequestHandler = $httpBackend.when('GET', '/auth.py')\n                                .respond({userId: 'userX'}, {'A-Token': 'xxx'});\n\n         // Get hold of a scope (i.e. the root scope)\n         $rootScope = $injector.get('$rootScope');\n         // The $controller service is used to create instances of controllers\n         var $controller = $injector.get('$controller');\n\n         createController = function() {\n           return $controller('MyController', {'$scope' : $rootScope });\n         };\n       }));\n\n\n       afterEach(function() {\n         $httpBackend.verifyNoOutstandingExpectation();\n         $httpBackend.verifyNoOutstandingRequest();\n       });\n\n\n       it('should fetch authentication token', function() {\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n       });\n\n\n       it('should fail authentication', function() {\n\n         // Notice how you can change the response even after it was set\n         authRequestHandler.respond(401, '');\n\n         $httpBackend.expectGET('/auth.py');\n         var controller = createController();\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('Failed...');\n       });\n\n\n       it('should send msg to server', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         // now you don’t care about the authentication, but\n         // the controller will still send the request and\n         // $httpBackend will respond without you having to\n         // specify the expectation and response for this request\n\n         $httpBackend.expectPOST('/add-msg.py', 'message content').respond(201, '');\n         $rootScope.saveMessage('message content');\n         expect($rootScope.status).toBe('Saving...');\n         $httpBackend.flush();\n         expect($rootScope.status).toBe('');\n       });\n\n\n       it('should send auth header', function() {\n         var controller = createController();\n         $httpBackend.flush();\n\n         $httpBackend.expectPOST('/add-msg.py', undefined, function(headers) {\n           // check if the header was sent, if it wasn't the expectation won't\n           // match the request and the test will fail\n           return headers['Authorization'] === 'xxx';\n         }).respond(201, '');\n\n         $rootScope.saveMessage('whatever');\n         $httpBackend.flush();\n       });\n    });\n  ```\n *\n * ## Dynamic responses\n *\n * You define a response to a request by chaining a call to `respond()` onto a definition or expectation.\n * If you provide a **callback** as the first parameter to `respond(callback)` then you can dynamically generate\n * a response based on the properties of the request.\n *\n * The `callback` function should be of the form `function(method, url, data, headers, params)`.\n *\n * ### Query parameters\n *\n * By default, query parameters on request URLs are parsed into the `params` object. So a request URL\n * of `/list?q=searchstr&orderby=-name` would set `params` to be `{q: 'searchstr', orderby: '-name'}`.\n *\n * ### Regex parameter matching\n *\n * If an expectation or definition uses a **regex** to match the URL, you can provide an array of **keys** via a\n * `params` argument. The index of each **key** in the array will match the index of a **group** in the\n * **regex**.\n *\n * The `params` object in the **callback** will now have properties with these keys, which hold the value of the\n * corresponding **group** in the **regex**.\n *\n * This also applies to the `when` and `expect` shortcut methods.\n *\n *\n * ```js\n *   $httpBackend.expect('GET', /\\/user\\/(.+)/, undefined, undefined, ['id'])\n *     .respond(function(method, url, data, headers, params) {\n *       // for requested url of '/user/1234' params is {id: '1234'}\n *     });\n *\n *   $httpBackend.whenPATCH(/\\/user\\/(.+)\\/article\\/(.+)/, undefined, undefined, ['user', 'article'])\n *     .respond(function(method, url, data, headers, params) {\n *       // for url of '/user/1234/article/567' params is {user: '1234', article: '567'}\n *     });\n * ```\n *\n * ## Matching route requests\n *\n * For extra convenience, `whenRoute` and `expectRoute` shortcuts are available. These methods offer colon\n * delimited matching of the url path, ignoring the query string and trailing slashes. This allows declarations\n * similar to how application routes are configured with `$routeProvider`. Because these methods convert\n * the definition url to regex, declaration order is important. Combined with query parameter parsing,\n * the following is possible:\n *\n  ```js\n    $httpBackend.whenRoute('GET', '/users/:id')\n      .respond(function(method, url, data, headers, params) {\n        return [200, MockUserList[Number(params.id)]];\n      });\n\n    $httpBackend.whenRoute('GET', '/users')\n      .respond(function(method, url, data, headers, params) {\n        var userList = angular.copy(MockUserList),\n          defaultSort = 'lastName',\n          count, pages, isPrevious, isNext;\n\n        // paged api response '/v1/users?page=2'\n        params.page = Number(params.page) || 1;\n\n        // query for last names '/v1/users?q=Archer'\n        if (params.q) {\n          userList = $filter('filter')({lastName: params.q});\n        }\n\n        pages = Math.ceil(userList.length / pagingLength);\n        isPrevious = params.page > 1;\n        isNext = params.page < pages;\n\n        return [200, {\n          count:    userList.length,\n          previous: isPrevious,\n          next:     isNext,\n          // sort field -> '/v1/users?sortBy=firstName'\n          results:  $filter('orderBy')(userList, params.sortBy || defaultSort)\n                      .splice((params.page - 1) * pagingLength, pagingLength)\n        }];\n      });\n  ```\n */\nangular.mock.$httpBackendDecorator =\n  ['$rootScope', '$timeout', '$delegate', createHttpBackendMock];\n\n/**\n * General factory function for $httpBackend mock.\n * Returns instance for unit testing (when no arguments specified):\n *   - passing through is disabled\n *   - auto flushing is disabled\n *\n * Returns instance for e2e testing (when `$delegate` and `$browser` specified):\n *   - passing through (delegating request to real backend) is enabled\n *   - auto flushing is enabled\n *\n * @param {Object=} $delegate Real $httpBackend instance (allow passing through if specified)\n * @param {Object=} $browser Auto-flushing enabled if specified\n * @return {Object} Instance of $httpBackend mock\n */\nfunction createHttpBackendMock($rootScope, $timeout, $delegate, $browser) {\n  var definitions = [],\n      expectations = [],\n      matchLatestDefinition = false,\n      responses = [],\n      responsesPush = angular.bind(responses, responses.push),\n      copy = angular.copy,\n      // We cache the original backend so that if both ngMock and ngMockE2E override the\n      // service the ngMockE2E version can pass through to the real backend\n      originalHttpBackend = $delegate.$$originalHttpBackend || $delegate;\n\n  function createResponse(status, data, headers, statusText) {\n    if (angular.isFunction(status)) return status;\n\n    return function() {\n      return angular.isNumber(status)\n          ? [status, data, headers, statusText, 'complete']\n          : [200, status, data, headers, 'complete'];\n    };\n  }\n\n  // TODO(vojta): change params to: method, url, data, headers, callback\n  function $httpBackend(method, url, data, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {\n\n    var xhr = new MockXhr(),\n        expectation = expectations[0],\n        wasExpected = false;\n\n    xhr.$$events = eventHandlers;\n    xhr.upload.$$events = uploadEventHandlers;\n\n    function prettyPrint(data) {\n      return (angular.isString(data) || angular.isFunction(data) || data instanceof RegExp)\n          ? data\n          : angular.toJson(data);\n    }\n\n    function wrapResponse(wrapped) {\n      if (!$browser && timeout) {\n        if (timeout.then) {\n          timeout.then(function() {\n            handlePrematureEnd(angular.isDefined(timeout.$$timeoutId) ? 'timeout' : 'abort');\n          });\n        } else {\n          $timeout(function() {\n            handlePrematureEnd('timeout');\n          }, timeout);\n        }\n      }\n\n      handleResponse.description = method + ' ' + url;\n      return handleResponse;\n\n      function handleResponse() {\n        var response = wrapped.response(method, url, data, headers, wrapped.params(url));\n        xhr.$$respHeaders = response[2];\n        callback(copy(response[0]), copy(response[1]), xhr.getAllResponseHeaders(),\n                 copy(response[3] || ''), copy(response[4]));\n      }\n\n      function handlePrematureEnd(reason) {\n        for (var i = 0, ii = responses.length; i < ii; i++) {\n          if (responses[i] === handleResponse) {\n            responses.splice(i, 1);\n            callback(-1, undefined, '', undefined, reason);\n            break;\n          }\n        }\n      }\n    }\n\n    function createFatalError(message) {\n      var error = new Error(message);\n      // In addition to being converted to a rejection, these errors also need to be passed to\n      // the $exceptionHandler and be rethrown (so that the test fails).\n      error.$$passToExceptionHandler = true;\n      return error;\n    }\n\n    if (expectation && expectation.match(method, url)) {\n      if (!expectation.matchData(data)) {\n        throw createFatalError('Expected ' + expectation + ' with different data\\n' +\n          'EXPECTED: ' + prettyPrint(expectation.data) + '\\n' +\n          'GOT:      ' + data);\n      }\n\n      if (!expectation.matchHeaders(headers)) {\n        throw createFatalError('Expected ' + expectation + ' with different headers\\n' +\n          'EXPECTED: ' + prettyPrint(expectation.headers) + '\\n' +\n          'GOT:      ' + prettyPrint(headers));\n      }\n\n      expectations.shift();\n\n      if (expectation.response) {\n        responses.push(wrapResponse(expectation));\n        return;\n      }\n      wasExpected = true;\n    }\n\n    var i = matchLatestDefinition ? definitions.length : -1, definition;\n\n    while ((definition = definitions[matchLatestDefinition ? --i : ++i])) {\n      if (definition.match(method, url, data, headers || {})) {\n        if (definition.response) {\n          // if $browser specified, we do auto flush all requests\n          ($browser ? $browser.defer : responsesPush)(wrapResponse(definition));\n        } else if (definition.passThrough) {\n          originalHttpBackend(method, url, data, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers);\n        } else throw createFatalError('No response defined !');\n        return;\n      }\n    }\n\n    if (wasExpected) {\n      throw createFatalError('No response defined !');\n    }\n\n    throw createFatalError('Unexpected request: ' + method + ' ' + url + '\\n' +\n      (expectation ? 'Expected ' + expectation : 'No more request expected'));\n  }\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#when\n   * @description\n   * Creates a new backend definition.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   *\n   *  - respond –\n   *      ```js\n   *      {function([status,] data[, headers, statusText])\n   *      | function(function(method, url, data, headers, params)}\n   *      ```\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (Array|Object|string),\n   *    response headers (Object), HTTP status text (string), and XMLHttpRequest status (string:\n   *    `complete`, `error`, `timeout` or `abort`). The respond method returns the `requestHandler`\n   *    object for possible overrides.\n   */\n  $httpBackend.when = function(method, url, data, headers, keys) {\n\n    assertArgDefined(arguments, 1, 'url');\n\n    var definition = new MockHttpExpectation(method, url, data, headers, keys),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            definition.passThrough = undefined;\n            definition.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    if ($browser) {\n      chain.passThrough = function() {\n        definition.response = undefined;\n        definition.passThrough = true;\n        return chain;\n      };\n    }\n\n    definitions.push(definition);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $httpBackend#matchLatestDefinitionEnabled\n   * @description\n   * This method can be used to change which mocked responses `$httpBackend` returns, when defining\n   * them with {@link ngMock.$httpBackend#when $httpBackend.when()} (and shortcut methods).\n   * By default, `$httpBackend` returns the first definition that matches. When setting\n   * `$http.matchLatestDefinitionEnabled(true)`, it will use the last response that matches, i.e. the\n   * one that was added last.\n   *\n   * ```js\n   * hb.when('GET', '/url1').respond(200, 'content', {});\n   * hb.when('GET', '/url1').respond(201, 'another', {});\n   * hb('GET', '/url1'); // receives \"content\"\n   *\n   * $http.matchLatestDefinitionEnabled(true)\n   * hb('GET', '/url1'); // receives \"another\"\n   *\n   * hb.when('GET', '/url1').respond(201, 'onemore', {});\n   * hb('GET', '/url1'); // receives \"onemore\"\n   * ```\n   *\n   * This is useful if a you have a default response that is overriden inside specific tests.\n   *\n   * Note that different from config methods on providers, `matchLatestDefinitionEnabled()` can be changed\n   * even when the application is already running.\n   *\n   * @param  {Boolean=} value value to set, either `true` or `false`. Default is `false`.\n   *                          If omitted, it will return the current value.\n   * @return {$httpBackend|Boolean} self when used as a setter, and the current value when used\n   *                                as a getter\n   */\n  $httpBackend.matchLatestDefinitionEnabled = function(value) {\n    if (angular.isDefined(value)) {\n      matchLatestDefinition = value;\n      return this;\n    } else {\n      return matchLatestDefinition;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenGET\n   * @description\n   * Creates a new backend definition for GET requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenHEAD\n   * @description\n   * Creates a new backend definition for HEAD requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenDELETE\n   * @description\n   * Creates a new backend definition for DELETE requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPOST\n   * @description\n   * Creates a new backend definition for POST requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenPUT\n   * @description\n   * Creates a new backend definition for PUT requests.  For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n   *   data string and returns true if the data is as expected.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenJSONP\n   * @description\n   * Creates a new backend definition for JSONP requests. For more info see `when()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   */\n  createShortMethods('when');\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#whenRoute\n   * @description\n   * Creates a new backend definition that compares only with the requested route.\n   *\n   * @param {string} method HTTP method.\n   * @param {string} url HTTP url string that supports colon param matching.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   * See {@link ngMock.$httpBackend#when `when`} for more info.\n   */\n  $httpBackend.whenRoute = function(method, url) {\n    var parsed = parseRouteUrl(url);\n    return $httpBackend.when(method, parsed.regexp, undefined, undefined, parsed.keys);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expect\n   * @description\n   * Creates a new request expectation.\n   *\n   * @param {string} method HTTP method.\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current definition.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *  request is handled. You can save this object for later use and invoke `respond` again in\n   *  order to change how a matched request is handled.\n   *\n   *  - respond –\n   *      ```js\n   *      {function([status,] data[, headers, statusText])\n   *      | function(function(method, url, data, headers, params)}\n   *      ```\n   *    – The respond method takes a set of static data to be returned or a function that can\n   *    return an array containing response status (number), response data (Array|Object|string),\n   *    response headers (Object), HTTP status text (string), and XMLHttpRequest status (string:\n   *    `complete`, `error`, `timeout` or `abort`). The respond method returns the `requestHandler`\n   *    object for possible overrides.\n   */\n  $httpBackend.expect = function(method, url, data, headers, keys) {\n\n    assertArgDefined(arguments, 1, 'url');\n\n    var expectation = new MockHttpExpectation(method, url, data, headers, keys),\n        chain = {\n          respond: function(status, data, headers, statusText) {\n            expectation.response = createResponse(status, data, headers, statusText);\n            return chain;\n          }\n        };\n\n    expectations.push(expectation);\n    return chain;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectGET\n   * @description\n   * Creates a new request expectation for GET requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current expectation.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled. See #expect for more info.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectHEAD\n   * @description\n   * Creates a new request expectation for HEAD requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current expectation.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectDELETE\n   * @description\n   * Creates a new request expectation for DELETE requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current expectation.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPOST\n   * @description\n   * Creates a new request expectation for POST requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current expectation.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPUT\n   * @description\n   * Creates a new request expectation for PUT requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current expectation.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectPATCH\n   * @description\n   * Creates a new request expectation for PATCH requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n   *   and returns true if the url matches the current expectation.\n   * @param {(string|RegExp|function(string)|Object)=} data HTTP request body or function that\n   *  receives data string and returns true if the data is as expected, or Object if request body\n   *  is in JSON format.\n   * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n   *   object and returns true if the headers match the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectJSONP\n   * @description\n   * Creates a new request expectation for JSONP requests. For more info see `expect()`.\n   *\n   * @param {string|RegExp|function(string)=} url HTTP url or function that receives an url\n   *   and returns true if the url matches the current expectation.\n   * @param {(Array)=} keys Array of keys to assign to regex matches in request url described above.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   *   request is handled. You can save this object for later use and invoke `respond` again in\n   *   order to change how a matched request is handled.\n   */\n  createShortMethods('expect');\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#expectRoute\n   * @description\n   * Creates a new request expectation that compares only with the requested route.\n   *\n   * @param {string} method HTTP method.\n   * @param {string} url HTTP url string that supports colon param matching.\n   * @returns {requestHandler} Returns an object with `respond` method that controls how a matched\n   * request is handled. You can save this object for later use and invoke `respond` again in\n   * order to change how a matched request is handled.\n   * See {@link ngMock.$httpBackend#expect `expect`} for more info.\n   */\n  $httpBackend.expectRoute = function(method, url) {\n    var parsed = parseRouteUrl(url);\n    return $httpBackend.expect(method, parsed.regexp, undefined, undefined, parsed.keys);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#flush\n   * @description\n   * Flushes pending requests using the trained responses. Requests are flushed in the order they\n   * were made, but it is also possible to skip one or more requests (for example to have them\n   * flushed later). This is useful for simulating scenarios where responses arrive from the server\n   * in any order.\n   *\n   * If there are no pending requests to flush when the method is called, an exception is thrown (as\n   * this is typically a sign of programming error).\n   *\n   * @param {number=} count - Number of responses to flush. If undefined/null, all pending requests\n   *     (starting after `skip`) will be flushed.\n   * @param {number=} [skip=0] - Number of pending requests to skip. For example, a value of `5`\n   *     would skip the first 5 pending requests and start flushing from the 6th onwards.\n   */\n  $httpBackend.flush = function(count, skip, digest) {\n    if (digest !== false) $rootScope.$digest();\n\n    skip = skip || 0;\n    if (skip >= responses.length) throw new Error('No pending request to flush !');\n\n    if (angular.isDefined(count) && count !== null) {\n      while (count--) {\n        var part = responses.splice(skip, 1);\n        if (!part.length) throw new Error('No more pending request to flush !');\n        part[0]();\n      }\n    } else {\n      while (responses.length > skip) {\n        responses.splice(skip, 1)[0]();\n      }\n    }\n    $httpBackend.verifyNoOutstandingExpectation(digest);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingExpectation\n   * @description\n   * Verifies that all of the requests defined via the `expect` api were made. If any of the\n   * requests were not made, verifyNoOutstandingExpectation throws an exception.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingExpectation);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingExpectation = function(digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (expectations.length) {\n      throw new Error('Unsatisfied requests: ' + expectations.join(', '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#verifyNoOutstandingRequest\n   * @description\n   * Verifies that there are no outstanding requests that need to be flushed.\n   *\n   * Typically, you would call this method following each test case that asserts requests using an\n   * \"afterEach\" clause.\n   *\n   * ```js\n   *   afterEach($httpBackend.verifyNoOutstandingRequest);\n   * ```\n   */\n  $httpBackend.verifyNoOutstandingRequest = function(digest) {\n    if (digest !== false) $rootScope.$digest();\n    if (responses.length) {\n      var unflushedDescriptions = responses.map(function(res) { return res.description; });\n      throw new Error('Unflushed requests: ' + responses.length + '\\n  ' +\n                      unflushedDescriptions.join('\\n  '));\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $httpBackend#resetExpectations\n   * @description\n   * Resets all request expectations, but preserves all backend definitions. Typically, you would\n   * call resetExpectations during a multiple-phase test when you want to reuse the same instance of\n   * $httpBackend mock.\n   */\n  $httpBackend.resetExpectations = function() {\n    expectations.length = 0;\n    responses.length = 0;\n  };\n\n  $httpBackend.$$originalHttpBackend = originalHttpBackend;\n\n  return $httpBackend;\n\n\n  function createShortMethods(prefix) {\n    angular.forEach(['GET', 'DELETE', 'JSONP', 'HEAD'], function(method) {\n     $httpBackend[prefix + method] = function(url, headers, keys) {\n        assertArgDefined(arguments, 0, 'url');\n\n        // Change url to `null` if `undefined` to stop it throwing an exception further down\n        if (angular.isUndefined(url)) url = null;\n\n       return $httpBackend[prefix](method, url, undefined, headers, keys);\n     };\n    });\n\n    angular.forEach(['PUT', 'POST', 'PATCH'], function(method) {\n      $httpBackend[prefix + method] = function(url, data, headers, keys) {\n        assertArgDefined(arguments, 0, 'url');\n\n        // Change url to `null` if `undefined` to stop it throwing an exception further down\n        if (angular.isUndefined(url)) url = null;\n\n        return $httpBackend[prefix](method, url, data, headers, keys);\n      };\n    });\n  }\n\n  function parseRouteUrl(url) {\n    var strippedUrl = stripQueryAndHash(url);\n    var parseOptions = {caseInsensitiveMatch: true, ignoreTrailingSlashes: true};\n    return routeToRegExp(strippedUrl, parseOptions);\n  }\n}\n\nfunction assertArgDefined(args, index, name) {\n  if (args.length > index && angular.isUndefined(args[index])) {\n    throw new Error('Undefined argument `' + name + '`; the argument is provided but not defined');\n  }\n}\n\nfunction stripQueryAndHash(url) {\n  return url.replace(/[?#].*$/, '');\n}\n\nfunction MockHttpExpectation(expectedMethod, expectedUrl, expectedData, expectedHeaders,\n                             expectedKeys) {\n\n  this.data = expectedData;\n  this.headers = expectedHeaders;\n\n  this.match = function(method, url, data, headers) {\n    if (expectedMethod !== method) return false;\n    if (!this.matchUrl(url)) return false;\n    if (angular.isDefined(data) && !this.matchData(data)) return false;\n    if (angular.isDefined(headers) && !this.matchHeaders(headers)) return false;\n    return true;\n  };\n\n  this.matchUrl = function(url) {\n    if (!expectedUrl) return true;\n    if (angular.isFunction(expectedUrl.test)) return expectedUrl.test(url);\n    if (angular.isFunction(expectedUrl)) return expectedUrl(url);\n    return (expectedUrl === url || compareUrlWithQuery(url));\n  };\n\n  this.matchHeaders = function(headers) {\n    if (angular.isUndefined(expectedHeaders)) return true;\n    if (angular.isFunction(expectedHeaders)) return expectedHeaders(headers);\n    return angular.equals(expectedHeaders, headers);\n  };\n\n  this.matchData = function(data) {\n    if (angular.isUndefined(expectedData)) return true;\n    if (expectedData && angular.isFunction(expectedData.test)) return expectedData.test(data);\n    if (expectedData && angular.isFunction(expectedData)) return expectedData(data);\n    if (expectedData && !angular.isString(expectedData)) {\n      return angular.equals(angular.fromJson(angular.toJson(expectedData)), angular.fromJson(data));\n    }\n    // eslint-disable-next-line eqeqeq\n    return expectedData == data;\n  };\n\n  this.toString = function() {\n    return expectedMethod + ' ' + expectedUrl;\n  };\n\n  this.params = function(url) {\n    var queryStr = url.indexOf('?') === -1 ? '' : url.substring(url.indexOf('?') + 1);\n    var strippedUrl = stripQueryAndHash(url);\n\n    return angular.extend(extractParamsFromQuery(queryStr), extractParamsFromPath(strippedUrl));\n  };\n\n  function compareUrlWithQuery(url) {\n    var urlWithQueryRe = /^([^?]*)\\?(.*)$/;\n\n    var expectedMatch = urlWithQueryRe.exec(expectedUrl);\n    var actualMatch = urlWithQueryRe.exec(url);\n\n    return !!(expectedMatch && actualMatch) &&\n      (expectedMatch[1] === actualMatch[1]) &&\n      (normalizeQuery(expectedMatch[2]) === normalizeQuery(actualMatch[2]));\n  }\n\n  function normalizeQuery(queryStr) {\n    return queryStr.split('&').sort().join('&');\n  }\n\n  function extractParamsFromPath(strippedUrl) {\n    var keyObj = {};\n\n    if (!expectedUrl || !angular.isFunction(expectedUrl.test) ||\n        !expectedKeys || !expectedKeys.length) return keyObj;\n\n    var match = expectedUrl.exec(strippedUrl);\n    if (!match) return keyObj;\n\n    for (var i = 1, len = match.length; i < len; ++i) {\n      var key = expectedKeys[i - 1];\n      var val = match[i];\n      if (key && val) {\n        keyObj[key.name || key] = val;\n      }\n    }\n\n    return keyObj;\n  }\n\n  function extractParamsFromQuery(queryStr) {\n    var obj = {},\n        keyValuePairs = queryStr.split('&').\n            filter(angular.identity).  // Ignore empty segments.\n            map(function(keyValue) { return keyValue.replace(/\\+/g, '%20').split('='); });\n\n    angular.forEach(keyValuePairs, function(pair) {\n      var key = tryDecodeURIComponent(pair[0]);\n      if (angular.isDefined(key)) {\n        var val = angular.isDefined(pair[1]) ? tryDecodeURIComponent(pair[1]) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if (angular.isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key], val];\n        }\n      }\n    });\n\n    return obj;\n  }\n\n  function tryDecodeURIComponent(value) {\n    try {\n      return decodeURIComponent(value);\n    } catch (e) {\n      // Ignore any invalid uri component\n    }\n  }\n}\n\nfunction createMockXhr() {\n  return new MockXhr();\n}\n\nfunction MockXhr() {\n\n  // hack for testing $http, $httpBackend\n  MockXhr.$$lastInstance = this;\n\n  this.open = function(method, url, async) {\n    this.$$method = method;\n    this.$$url = url;\n    this.$$async = async;\n    this.$$reqHeaders = {};\n    this.$$respHeaders = {};\n  };\n\n  this.send = function(data) {\n    this.$$data = data;\n  };\n\n  this.setRequestHeader = function(key, value) {\n    this.$$reqHeaders[key] = value;\n  };\n\n  this.getResponseHeader = function(name) {\n    // the lookup must be case insensitive,\n    // that's why we try two quick lookups first and full scan last\n    var header = this.$$respHeaders[name];\n    if (header) return header;\n\n    name = angular.$$lowercase(name);\n    header = this.$$respHeaders[name];\n    if (header) return header;\n\n    header = undefined;\n    angular.forEach(this.$$respHeaders, function(headerVal, headerName) {\n      if (!header && angular.$$lowercase(headerName) === name) header = headerVal;\n    });\n    return header;\n  };\n\n  this.getAllResponseHeaders = function() {\n    var lines = [];\n\n    angular.forEach(this.$$respHeaders, function(value, key) {\n      lines.push(key + ': ' + value);\n    });\n    return lines.join('\\n');\n  };\n\n  this.abort = function() {\n    if (isFunction(this.onabort)) {\n      this.onabort();\n    }\n  };\n\n  // This section simulates the events on a real XHR object (and the upload object)\n  // When we are testing $httpBackend (inside the AngularJS project) we make partial use of this\n  // but store the events directly ourselves on `$$events`, instead of going through the `addEventListener`\n  this.$$events = {};\n  this.addEventListener = function(name, listener) {\n    if (angular.isUndefined(this.$$events[name])) this.$$events[name] = [];\n    this.$$events[name].push(listener);\n  };\n\n  this.upload = {\n    $$events: {},\n    addEventListener: this.addEventListener\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $timeout\n * @description\n *\n * This service is just a simple decorator for {@link ng.$timeout $timeout} service\n * that adds a \"flush\" and \"verifyNoPendingTasks\" methods.\n */\n\nangular.mock.$TimeoutDecorator = ['$delegate', '$browser', function($delegate, $browser) {\n\n  /**\n   * @ngdoc method\n   * @name $timeout#flush\n   *\n   * @deprecated\n   * sinceVersion=\"1.7.3\"\n   *\n   * This method flushes all types of tasks (not only timeouts), which is unintuitive.\n   * It is recommended to use {@link ngMock.$flushPendingTasks} instead.\n   *\n   * @description\n   *\n   * Flushes the queue of pending tasks.\n   *\n   * _This method is essentially an alias of {@link ngMock.$flushPendingTasks}._\n   *\n   * <div class=\"alert alert-warning\">\n   *   For historical reasons, this method will also flush non-`$timeout` pending tasks, such as\n   *   {@link $q} promises and tasks scheduled via\n   *   {@link ng.$rootScope.Scope#$applyAsync $applyAsync} and\n   *   {@link ng.$rootScope.Scope#$evalAsync $evalAsync}.\n   * </div>\n   *\n   * @param {number=} delay maximum timeout amount to flush up until\n   */\n  $delegate.flush = function(delay) {\n    // For historical reasons, `$timeout.flush()` flushes all types of pending tasks.\n    // Keep the same behavior for backwards compatibility (and because it doesn't make sense to\n    // selectively flush scheduled events out of order).\n    $browser.defer.flush(delay);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $timeout#verifyNoPendingTasks\n   *\n   * @deprecated\n   * sinceVersion=\"1.7.3\"\n   *\n   * This method takes all types of tasks (not only timeouts) into account, which is unintuitive.\n   * It is recommended to use {@link ngMock.$verifyNoPendingTasks} instead, which additionally\n   * allows checking for timeouts only (with `$verifyNoPendingTasks('$timeout')`).\n   *\n   * @description\n   *\n   * Verifies that there are no pending tasks that need to be flushed. It throws an error if there\n   * are still pending tasks.\n   *\n   * _This method is essentially an alias of {@link ngMock.$verifyNoPendingTasks} (called with no\n   * arguments)._\n   *\n   * <div class=\"alert alert-warning\">\n   *   <p>\n   *     For historical reasons, this method will also verify non-`$timeout` pending tasks, such as\n   *     pending {@link $http} requests, in-progress {@link $route} transitions, unresolved\n   *     {@link $q} promises and tasks scheduled via\n   *     {@link ng.$rootScope.Scope#$applyAsync $applyAsync} and\n   *     {@link ng.$rootScope.Scope#$evalAsync $evalAsync}.\n   *   </p>\n   *   <p>\n   *     It is recommended to use {@link ngMock.$verifyNoPendingTasks} instead, which additionally\n   *     supports verifying a specific type of tasks. For example, you can verify there are no\n   *     pending timeouts with `$verifyNoPendingTasks('$timeout')`.\n   *   </p>\n   * </div>\n   */\n  $delegate.verifyNoPendingTasks = function() {\n    // For historical reasons, `$timeout.verifyNoPendingTasks()` takes all types of pending tasks\n    // into account. Keep the same behavior for backwards compatibility.\n    var pendingTasks = $browser.defer.getPendingTasks();\n\n    if (pendingTasks.length) {\n      var formattedTasks = $browser.defer.formatPendingTasks(pendingTasks).join('\\n  ');\n      var hasPendingTimeout = pendingTasks.some(function(task) { return task.type === '$timeout'; });\n      var extraMessage = hasPendingTimeout ? '' : '\\n\\nNone of the pending tasks are timeouts. ' +\n          'If you only want to verify pending timeouts, use ' +\n          '`$verifyNoPendingTasks(\\'$timeout\\')` instead.';\n\n      throw new Error('Deferred tasks to flush (' + pendingTasks.length + '):\\n  ' +\n          formattedTasks + extraMessage);\n    }\n  };\n\n  return $delegate;\n}];\n\nangular.mock.$RAFDecorator = ['$delegate', function($delegate) {\n  var rafFn = function(fn) {\n    var index = rafFn.queue.length;\n    rafFn.queue.push(fn);\n    return function() {\n      rafFn.queue.splice(index, 1);\n    };\n  };\n\n  rafFn.queue = [];\n  rafFn.supported = $delegate.supported;\n\n  rafFn.flush = function() {\n    if (rafFn.queue.length === 0) {\n      throw new Error('No rAF callbacks present');\n    }\n\n    var length = rafFn.queue.length;\n    for (var i = 0; i < length; i++) {\n      rafFn.queue[i]();\n    }\n\n    rafFn.queue = rafFn.queue.slice(i);\n  };\n\n  return rafFn;\n}];\n\n/**\n *\n */\nvar originalRootElement;\nangular.mock.$RootElementProvider = function() {\n  this.$get = ['$injector', function($injector) {\n    originalRootElement = angular.element('<div ng-app></div>').data('$injector', $injector);\n    return originalRootElement;\n  }];\n};\n\n/**\n * @ngdoc service\n * @name $controller\n * @description\n * A decorator for {@link ng.$controller} with additional `bindings` parameter, useful when testing\n * controllers of directives that use {@link $compile#-bindtocontroller- `bindToController`}.\n *\n * ## Example\n *\n * ```js\n *\n * // Directive definition ...\n *\n * myMod.directive('myDirective', {\n *   controller: 'MyDirectiveController',\n *   bindToController: {\n *     name: '@'\n *   }\n * });\n *\n *\n * // Controller definition ...\n *\n * myMod.controller('MyDirectiveController', ['$log', function($log) {\n *   this.log = function() {\n *     $log.info(this.name);\n *   };\n * }]);\n *\n *\n * // In a test ...\n *\n * describe('myDirectiveController', function() {\n *   describe('log()', function() {\n *     it('should write the bound name to the log', inject(function($controller, $log) {\n *       var ctrl = $controller('MyDirectiveController', { /* no locals &#42;/ }, { name: 'Clark Kent' });\n *       ctrl.log();\n *\n *       expect(ctrl.name).toEqual('Clark Kent');\n *       expect($log.info.logs).toEqual(['Clark Kent']);\n *     }));\n *   });\n * });\n *\n * ```\n *\n * @param {Function|string} constructor If called with a function then it's considered to be the\n *    controller constructor function. Otherwise it's considered to be a string which is used\n *    to retrieve the controller constructor using the following steps:\n *\n *    * check if a controller with given name is registered via `$controllerProvider`\n *    * check if evaluating the string on the current scope returns a constructor\n *\n *    The string can use the `controller as property` syntax, where the controller instance is published\n *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n *    to work correctly.\n *\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller instance. This is used to simulate\n *                           the `bindToController` feature and simplify certain kinds of tests.\n * @return {Object} Instance of given controller.\n */\nfunction createControllerDecorator() {\n  angular.mock.$ControllerDecorator = ['$delegate', function($delegate) {\n    return function(expression, locals, later, ident) {\n      if (later && typeof later === 'object') {\n        var instantiate = $delegate(expression, locals, true, ident);\n        var instance = instantiate();\n        angular.extend(instance, later);\n        return instance;\n      }\n      return $delegate(expression, locals, later, ident);\n    };\n  }];\n\n  return angular.mock.$ControllerDecorator;\n}\n\n/**\n * @ngdoc service\n * @name $componentController\n * @description\n * A service that can be used to create instances of component controllers. Useful for unit-testing.\n *\n * Be aware that the controller will be instantiated and attached to the scope as specified in\n * the component definition object. If you do not provide a `$scope` object in the `locals` param\n * then the helper will create a new isolated scope as a child of `$rootScope`.\n *\n * If you are using `$element` or `$attrs` in the controller, make sure to provide them as `locals`.\n * The `$element` must be a jqLite-wrapped DOM element, and `$attrs` should be an object that\n * has all properties / functions that you are using in the controller. If this is getting too complex,\n * you should compile the component instead and access the component's controller via the\n * {@link angular.element#methods `controller`} function.\n *\n * See also the section on {@link guide/component#unit-testing-component-controllers unit-testing component controllers}\n * in the guide.\n *\n * @param {string} componentName the name of the component whose controller we want to instantiate\n * @param {Object} locals Injection locals for Controller.\n * @param {Object=} bindings Properties to add to the controller before invoking the constructor. This is used\n *                           to simulate the `bindToController` feature and simplify certain kinds of tests.\n * @param {string=} ident Override the property name to use when attaching the controller to the scope.\n * @return {Object} Instance of requested controller.\n */\nangular.mock.$ComponentControllerProvider = ['$compileProvider',\n    function ComponentControllerProvider($compileProvider) {\n  this.$get = ['$controller','$injector', '$rootScope', function($controller, $injector, $rootScope) {\n    return function $componentController(componentName, locals, bindings, ident) {\n      // get all directives associated to the component name\n      var directives = $injector.get(componentName + 'Directive');\n      // look for those directives that are components\n      var candidateDirectives = directives.filter(function(directiveInfo) {\n        // components have controller, controllerAs and restrict:'E'\n        return directiveInfo.controller && directiveInfo.controllerAs && directiveInfo.restrict === 'E';\n      });\n      // check if valid directives found\n      if (candidateDirectives.length === 0) {\n        throw new Error('No component found');\n      }\n      if (candidateDirectives.length > 1) {\n        throw new Error('Too many components found');\n      }\n      // get the info of the component\n      var directiveInfo = candidateDirectives[0];\n      // create a scope if needed\n      locals = locals || {};\n      locals.$scope = locals.$scope || $rootScope.$new(true);\n      return $controller(directiveInfo.controller, locals, bindings, ident || directiveInfo.controllerAs);\n    };\n  }];\n}];\n\n\n/**\n * @ngdoc module\n * @name ngMock\n * @packageName angular-mocks\n * @description\n *\n * The `ngMock` module provides support to inject and mock AngularJS services into unit tests.\n * In addition, ngMock also extends various core AngularJS services such that they can be\n * inspected and controlled in a synchronous manner within test code.\n *\n * @installation\n *\n *  First, download the file:\n *  * [Google CDN](https://developers.google.com/speed/libraries/devguide#angularjs) e.g.\n *    `\"//ajax.googleapis.com/ajax/libs/angularjs/X.Y.Z/angular-mocks.js\"`\n *  * [NPM](https://www.npmjs.com/) e.g. `npm install angular-mocks@X.Y.Z`\n *  * [Yarn](https://yarnpkg.com) e.g. `yarn add angular-mocks@X.Y.Z`\n *  * [Bower](http://bower.io) e.g. `bower install angular-mocks#X.Y.Z`\n *  * [code.angularjs.org](https://code.angularjs.org/) (discouraged for production use)  e.g.\n *    `\"//code.angularjs.org/X.Y.Z/angular-mocks.js\"`\n *\n * where X.Y.Z is the AngularJS version you are running.\n *\n * Then, configure your test runner to load `angular-mocks.js` after `angular.js`.\n * This example uses <a href=\"http://karma-runner.github.io/\">Karma</a>:\n *\n * ```\n * config.set({\n *   files: [\n *     'build/angular.js', // and other module files you need\n *     'build/angular-mocks.js',\n *     '<path/to/application/files>',\n *     '<path/to/spec/files>'\n *   ]\n * });\n * ```\n *\n * Including the `angular-mocks.js` file automatically adds the `ngMock` module, so your tests\n *  are ready to go!\n */\nangular.module('ngMock', ['ng']).provider({\n  $browser: angular.mock.$BrowserProvider,\n  $exceptionHandler: angular.mock.$ExceptionHandlerProvider,\n  $log: angular.mock.$LogProvider,\n  $interval: angular.mock.$IntervalProvider,\n  $rootElement: angular.mock.$RootElementProvider,\n  $componentController: angular.mock.$ComponentControllerProvider,\n  $flushPendingTasks: angular.mock.$FlushPendingTasksProvider,\n  $verifyNoPendingTasks: angular.mock.$VerifyNoPendingTasksProvider\n}).config(['$provide', '$compileProvider', function($provide, $compileProvider) {\n  $provide.decorator('$timeout', angular.mock.$TimeoutDecorator);\n  $provide.decorator('$$rAF', angular.mock.$RAFDecorator);\n  $provide.decorator('$rootScope', angular.mock.$RootScopeDecorator);\n  $provide.decorator('$controller', createControllerDecorator($compileProvider));\n  $provide.decorator('$httpBackend', angular.mock.$httpBackendDecorator);\n}]).info({ angularVersion: '1.7.9' });\n\n/**\n * @ngdoc module\n * @name ngMockE2E\n * @module ngMockE2E\n * @packageName angular-mocks\n * @description\n *\n * The `ngMockE2E` is an AngularJS module which contains mocks suitable for end-to-end testing.\n * Currently there is only one mock present in this module -\n * the {@link ngMockE2E.$httpBackend e2e $httpBackend} mock.\n */\nangular.module('ngMockE2E', ['ng']).config(['$provide', function($provide) {\n  $provide.decorator('$httpBackend', angular.mock.e2e.$httpBackendDecorator);\n}]).info({ angularVersion: '1.7.9' });\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @module ngMockE2E\n * @description\n * Fake HTTP backend implementation suitable for end-to-end testing or backend-less development of\n * applications that use the {@link ng.$http $http service}.\n *\n * <div class=\"alert alert-info\">\n * **Note**: For fake http backend implementation suitable for unit testing please see\n * {@link ngMock.$httpBackend unit-testing $httpBackend mock}.\n * </div>\n *\n * This implementation can be used to respond with static or dynamic responses via the `when` api\n * and its shortcuts (`whenGET`, `whenPOST`, etc) and optionally pass through requests to the\n * real $httpBackend for specific requests (e.g. to interact with certain remote apis or to fetch\n * templates from a webserver).\n *\n * As opposed to unit-testing, in an end-to-end testing scenario or in scenario when an application\n * is being developed with the real backend api replaced with a mock, it is often desirable for\n * certain category of requests to bypass the mock and issue a real http request (e.g. to fetch\n * templates or static files from the webserver). To configure the backend with this behavior\n * use the `passThrough` request handler of `when` instead of `respond`.\n *\n * Additionally, we don't want to manually have to flush mocked out requests like we do during unit\n * testing. For this reason the e2e $httpBackend flushes mocked out requests\n * automatically, closely simulating the behavior of the XMLHttpRequest object.\n *\n * To setup the application to run with this http backend, you have to create a module that depends\n * on the `ngMockE2E` and your application modules and defines the fake backend:\n *\n * ```js\n *   var myAppDev = angular.module('myAppDev', ['myApp', 'ngMockE2E']);\n *   myAppDev.run(function($httpBackend) {\n *     var phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *     $httpBackend.whenGET(/^\\/templates\\//).passThrough(); // Requests for templates are handled by the real server\n *     //...\n *   });\n * ```\n *\n * Afterwards, bootstrap your app with this new module.\n *\n * @example\n * <example name=\"httpbackend-e2e-testing\" module=\"myAppE2E\" deps=\"angular-mocks.js\">\n * <file name=\"app.js\">\n *   var myApp = angular.module('myApp', []);\n *\n *   myApp.controller('MainCtrl', function MainCtrl($http) {\n *     var ctrl = this;\n *\n *     ctrl.phones = [];\n *     ctrl.newPhone = {\n *       name: ''\n *     };\n *\n *     ctrl.getPhones = function() {\n *       $http.get('/phones').then(function(response) {\n *         ctrl.phones = response.data;\n *       });\n *     };\n *\n *     ctrl.addPhone = function(phone) {\n *       $http.post('/phones', phone).then(function() {\n *         ctrl.newPhone = {name: ''};\n *         return ctrl.getPhones();\n *       });\n *     };\n *\n *     ctrl.getPhones();\n *   });\n * </file>\n * <file name=\"e2e.js\">\n *   var myAppDev = angular.module('myAppE2E', ['myApp', 'ngMockE2E']);\n *\n *   myAppDev.run(function($httpBackend) {\n *     var phones = [{name: 'phone1'}, {name: 'phone2'}];\n *\n *     // returns the current list of phones\n *     $httpBackend.whenGET('/phones').respond(phones);\n *\n *     // adds a new phone to the phones array\n *     $httpBackend.whenPOST('/phones').respond(function(method, url, data) {\n *       var phone = angular.fromJson(data);\n *       phones.push(phone);\n *       return [200, phone, {}];\n *     });\n *   });\n * </file>\n * <file name=\"index.html\">\n *   <div ng-controller=\"MainCtrl as $ctrl\">\n *   <form name=\"newPhoneForm\" ng-submit=\"$ctrl.addPhone($ctrl.newPhone)\">\n *     <input type=\"text\" ng-model=\"$ctrl.newPhone.name\">\n *     <input type=\"submit\" value=\"Add Phone\">\n *   </form>\n *   <h1>Phones</h1>\n *   <ul>\n *     <li ng-repeat=\"phone in $ctrl.phones\">{{phone.name}}</li>\n *   </ul>\n *   </div>\n * </file>\n * </example>\n *\n *\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#when\n * @module ngMockE2E\n * @description\n * Creates a new backend definition.\n *\n * @param {string} method HTTP method.\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers or function that receives http header\n *   object and returns true if the headers match the current definition.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n *\n *  - respond –\n *    ```\n *    { function([status,] data[, headers, statusText])\n *    | function(function(method, url, data, headers, params)}\n *    ```\n *    – The respond method takes a set of static data to be returned or a function that can return\n *    an array containing response status (number), response data (Array|Object|string), response\n *    headers (Object), and the text for the status (string).\n *  - passThrough – `{function()}` – Any request matching a backend definition with\n *    `passThrough` handler will be passed through to the real backend (an XHR request will be made\n *    to the server.)\n *  - Both methods return the `requestHandler` object for possible overrides.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenGET\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for GET requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenHEAD\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for HEAD requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenDELETE\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for DELETE requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPOST\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for POST requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPUT\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PUT requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenPATCH\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for PATCH requests.  For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(string|RegExp|function(string))=} data HTTP request body or function that receives\n *   data string and returns true if the data is as expected.\n * @param {(Object|function(Object))=} headers HTTP headers.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n\n/**\n * @ngdoc method\n * @name $httpBackend#whenJSONP\n * @module ngMockE2E\n * @description\n * Creates a new backend definition for JSONP requests. For more info see `when()`.\n *\n * @param {string|RegExp|function(string)=} url HTTP url or function that receives a url\n *   and returns true if the url matches the current definition.\n * @param {(Array)=} keys Array of keys to assign to regex matches in request url described on\n *   {@link ngMock.$httpBackend $httpBackend mock}.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n/**\n * @ngdoc method\n * @name $httpBackend#whenRoute\n * @module ngMockE2E\n * @description\n * Creates a new backend definition that compares only with the requested route.\n *\n * @param {string} method HTTP method.\n * @param {string} url HTTP url string that supports colon param matching.\n * @returns {requestHandler} Returns an object with `respond` and `passThrough` methods that\n *   control how a matched request is handled. You can save this object for later use and invoke\n *   `respond` or `passThrough` again in order to change how a matched request is handled.\n */\n/**\n * @ngdoc method\n * @name  $httpBackend#matchLatestDefinitionEnabled\n * @module ngMockE2E\n * @description\n * This method can be used to change which mocked responses `$httpBackend` returns, when defining\n * them with {@link ngMock.$httpBackend#when $httpBackend.when()} (and shortcut methods).\n * By default, `$httpBackend` returns the first definition that matches. When setting\n * `$http.matchLatestDefinitionEnabled(true)`, it will use the last response that matches, i.e. the\n * one that was added last.\n *\n * ```js\n * hb.when('GET', '/url1').respond(200, 'content', {});\n * hb.when('GET', '/url1').respond(201, 'another', {});\n * hb('GET', '/url1'); // receives \"content\"\n *\n * $http.matchLatestDefinitionEnabled(true)\n * hb('GET', '/url1'); // receives \"another\"\n *\n * hb.when('GET', '/url1').respond(201, 'onemore', {});\n * hb('GET', '/url1'); // receives \"onemore\"\n * ```\n *\n * This is useful if a you have a default response that is overriden inside specific tests.\n *\n * Note that different from config methods on providers, `matchLatestDefinitionEnabled()` can be changed\n * even when the application is already running.\n *\n * @param  {Boolean=} value value to set, either `true` or `false`. Default is `false`.\n *                          If omitted, it will return the current value.\n * @return {$httpBackend|Boolean} self when used as a setter, and the current value when used\n *                                as a getter\n */\nangular.mock.e2e = {};\nangular.mock.e2e.$httpBackendDecorator =\n  ['$rootScope', '$timeout', '$delegate', '$browser', createHttpBackendMock];\n\n\n/**\n * @ngdoc type\n * @name $rootScope.Scope\n * @module ngMock\n * @description\n * {@link ng.$rootScope.Scope Scope} type decorated with helper methods useful for testing. These\n * methods are automatically available on any {@link ng.$rootScope.Scope Scope} instance when\n * `ngMock` module is loaded.\n *\n * In addition to all the regular `Scope` methods, the following helper methods are available:\n */\nangular.mock.$RootScopeDecorator = ['$delegate', function($delegate) {\n\n  var $rootScopePrototype = Object.getPrototypeOf($delegate);\n\n  $rootScopePrototype.$countChildScopes = countChildScopes;\n  $rootScopePrototype.$countWatchers = countWatchers;\n\n  return $delegate;\n\n  // ------------------------------------------------------------------------------------------ //\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countChildScopes\n   * @module ngMock\n   * @this $rootScope.Scope\n   * @description\n   * Counts all the direct and indirect child scopes of the current scope.\n   *\n   * The current scope is excluded from the count. The count includes all isolate child scopes.\n   *\n   * @returns {number} Total number of child scopes.\n   */\n  function countChildScopes() {\n    var count = 0; // exclude the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += 1;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n\n\n  /**\n   * @ngdoc method\n   * @name $rootScope.Scope#$countWatchers\n   * @this $rootScope.Scope\n   * @module ngMock\n   * @description\n   * Counts all the watchers of direct and indirect child scopes of the current scope.\n   *\n   * The watchers of the current scope are included in the count and so are all the watchers of\n   * isolate child scopes.\n   *\n   * @returns {number} Total number of watchers.\n   */\n  function countWatchers() {\n    var count = this.$$watchers ? this.$$watchers.length : 0; // include the current scope\n    var pendingChildHeads = [this.$$childHead];\n    var currentScope;\n\n    while (pendingChildHeads.length) {\n      currentScope = pendingChildHeads.shift();\n\n      while (currentScope) {\n        count += currentScope.$$watchers ? currentScope.$$watchers.length : 0;\n        pendingChildHeads.push(currentScope.$$childHead);\n        currentScope = currentScope.$$nextSibling;\n      }\n    }\n\n    return count;\n  }\n}];\n\n\n(function(jasmineOrMocha) {\n\n  if (!jasmineOrMocha) {\n    return;\n  }\n\n  var currentSpec = null,\n      injectorState = new InjectorState(),\n      annotatedFunctions = [],\n      wasInjectorCreated = function() {\n        return !!currentSpec;\n      };\n\n  angular.mock.$$annotate = angular.injector.$$annotate;\n  angular.injector.$$annotate = function(fn) {\n    if (typeof fn === 'function' && !fn.$inject) {\n      annotatedFunctions.push(fn);\n    }\n    return angular.mock.$$annotate.apply(this, arguments);\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function registers a module configuration code. It collects the configuration information\n   * which will be used when the injector is created by {@link angular.mock.inject inject}.\n   *\n   * See {@link angular.mock.inject inject} for usage example\n   *\n   * @param {...(string|Function|Object)} fns any number of modules which are represented as string\n   *        aliases or as anonymous module initialization functions. The modules are used to\n   *        configure the injector. The 'ng' and 'ngMock' modules are automatically loaded. If an\n   *        object literal is passed each key-value pair will be registered on the module via\n   *        {@link auto.$provide $provide}.value, the key being the string name (or token) to associate\n   *        with the value on the injector.\n   */\n  var module = window.module = angular.mock.module = function() {\n    var moduleFns = Array.prototype.slice.call(arguments, 0);\n    return wasInjectorCreated() ? workFn() : workFn;\n    /////////////////////\n    function workFn() {\n      if (currentSpec.$injector) {\n        throw new Error('Injector already created, can not register a module!');\n      } else {\n        var fn, modules = currentSpec.$modules || (currentSpec.$modules = []);\n        angular.forEach(moduleFns, function(module) {\n          if (angular.isObject(module) && !angular.isArray(module)) {\n            fn = ['$provide', function($provide) {\n              angular.forEach(module, function(value, key) {\n                $provide.value(key, value);\n              });\n            }];\n          } else {\n            fn = module;\n          }\n          if (currentSpec.$providerInjector) {\n            currentSpec.$providerInjector.invoke(fn);\n          } else {\n            modules.push(fn);\n          }\n        });\n      }\n    }\n  };\n\n  module.$$beforeAllHook = (window.before || window.beforeAll);\n  module.$$afterAllHook = (window.after || window.afterAll);\n\n  // purely for testing ngMock itself\n  module.$$currentSpec = function(to) {\n    if (arguments.length === 0) return to;\n    currentSpec = to;\n  };\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.module.sharedInjector\n   * @description\n   *\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * This function ensures a single injector will be used for all tests in a given describe context.\n   * This contrasts with the default behaviour where a new injector is created per test case.\n   *\n   * Use sharedInjector when you want to take advantage of Jasmine's `beforeAll()`, or mocha's\n   * `before()` methods. Call `module.sharedInjector()` before you setup any other hooks that\n   * will create (i.e call `module()`) or use (i.e call `inject()`) the injector.\n   *\n   * You cannot call `sharedInjector()` from within a context already using `sharedInjector()`.\n   *\n   * ## Example\n   *\n   * Typically beforeAll is used to make many assertions about a single operation. This can\n   * cut down test run-time as the test setup doesn't need to be re-run, and enabling focussed\n   * tests each with a single assertion.\n   *\n   * ```js\n   * describe(\"Deep Thought\", function() {\n   *\n   *   module.sharedInjector();\n   *\n   *   beforeAll(module(\"UltimateQuestion\"));\n   *\n   *   beforeAll(inject(function(DeepThought) {\n   *     expect(DeepThought.answer).toBeUndefined();\n   *     DeepThought.generateAnswer();\n   *   }));\n   *\n   *   it(\"has calculated the answer correctly\", inject(function(DeepThought) {\n   *     // Because of sharedInjector, we have access to the instance of the DeepThought service\n   *     // that was provided to the beforeAll() hook. Therefore we can test the generated answer\n   *     expect(DeepThought.answer).toBe(42);\n   *   }));\n   *\n   *   it(\"has calculated the answer within the expected time\", inject(function(DeepThought) {\n   *     expect(DeepThought.runTimeMillennia).toBeLessThan(8000);\n   *   }));\n   *\n   *   it(\"has double checked the answer\", inject(function(DeepThought) {\n   *     expect(DeepThought.absolutelySureItIsTheRightAnswer).toBe(true);\n   *   }));\n   *\n   * });\n   *\n   * ```\n   */\n  module.sharedInjector = function() {\n    if (!(module.$$beforeAllHook && module.$$afterAllHook)) {\n      throw Error('sharedInjector() cannot be used unless your test runner defines beforeAll/afterAll');\n    }\n\n    var initialized = false;\n\n    module.$$beforeAllHook(/** @this */ function() {\n      if (injectorState.shared) {\n        injectorState.sharedError = Error('sharedInjector() cannot be called inside a context that has already called sharedInjector()');\n        throw injectorState.sharedError;\n      }\n      initialized = true;\n      currentSpec = this;\n      injectorState.shared = true;\n    });\n\n    module.$$afterAllHook(function() {\n      if (initialized) {\n        injectorState = new InjectorState();\n        module.$$cleanup();\n      } else {\n        injectorState.sharedError = null;\n      }\n    });\n  };\n\n  module.$$beforeEach = function() {\n    if (injectorState.shared && currentSpec && currentSpec !== this) {\n      var state = currentSpec;\n      currentSpec = this;\n      angular.forEach(['$injector','$modules','$providerInjector', '$injectorStrict'], function(k) {\n        currentSpec[k] = state[k];\n        state[k] = null;\n      });\n    } else {\n      currentSpec = this;\n      originalRootElement = null;\n      annotatedFunctions = [];\n    }\n  };\n\n  module.$$afterEach = function() {\n    if (injectorState.cleanupAfterEach()) {\n      module.$$cleanup();\n    }\n  };\n\n  module.$$cleanup = function() {\n    var injector = currentSpec.$injector;\n\n    annotatedFunctions.forEach(function(fn) {\n      delete fn.$inject;\n    });\n\n    currentSpec.$injector = null;\n    currentSpec.$modules = null;\n    currentSpec.$providerInjector = null;\n    currentSpec = null;\n\n    if (injector) {\n      // Ensure `$rootElement` is instantiated, before checking `originalRootElement`\n      var $rootElement = injector.get('$rootElement');\n      var rootNode = $rootElement && $rootElement[0];\n      var cleanUpNodes = !originalRootElement ? [] : [originalRootElement[0]];\n      if (rootNode && (!originalRootElement || rootNode !== originalRootElement[0])) {\n        cleanUpNodes.push(rootNode);\n      }\n      angular.element.cleanData(cleanUpNodes);\n\n      // Ensure `$destroy()` is available, before calling it\n      // (a mocked `$rootScope` might not implement it (or not even be an object at all))\n      var $rootScope = injector.get('$rootScope');\n      if ($rootScope && $rootScope.$destroy) $rootScope.$destroy();\n    }\n\n    // clean up jquery's fragment cache\n    angular.forEach(angular.element.fragments, function(val, key) {\n      delete angular.element.fragments[key];\n    });\n\n    MockXhr.$$lastInstance = null;\n\n    angular.forEach(angular.callbacks, function(val, key) {\n      delete angular.callbacks[key];\n    });\n    angular.callbacks.$$counter = 0;\n  };\n\n  (window.beforeEach || window.setup)(module.$$beforeEach);\n  (window.afterEach || window.teardown)(module.$$afterEach);\n\n  /**\n   * @ngdoc function\n   * @name angular.mock.inject\n   * @description\n   *\n   * *NOTE*: This function is also published on window for easy access.<br>\n   * *NOTE*: This function is declared ONLY WHEN running tests with jasmine or mocha\n   *\n   * The inject function wraps a function into an injectable function. The inject() creates new\n   * instance of {@link auto.$injector $injector} per test, which is then used for\n   * resolving references.\n   *\n   *\n   * ## Resolving References (Underscore Wrapping)\n   * Often, we would like to inject a reference once, in a `beforeEach()` block and reuse this\n   * in multiple `it()` clauses. To be able to do this we must assign the reference to a variable\n   * that is declared in the scope of the `describe()` block. Since we would, most likely, want\n   * the variable to have the same name of the reference we have a problem, since the parameter\n   * to the `inject()` function would hide the outer variable.\n   *\n   * To help with this, the injected parameters can, optionally, be enclosed with underscores.\n   * These are ignored by the injector when the reference name is resolved.\n   *\n   * For example, the parameter `_myService_` would be resolved as the reference `myService`.\n   * Since it is available in the function body as `_myService_`, we can then assign it to a variable\n   * defined in an outer scope.\n   *\n   * ```\n   * // Defined out reference variable outside\n   * var myService;\n   *\n   * // Wrap the parameter in underscores\n   * beforeEach( inject( function(_myService_){\n   *   myService = _myService_;\n   * }));\n   *\n   * // Use myService in a series of tests.\n   * it('makes use of myService', function() {\n   *   myService.doStuff();\n   * });\n   *\n   * ```\n   *\n   * See also {@link angular.mock.module angular.mock.module}\n   *\n   * ## Example\n   * Example of what a typical jasmine tests looks like with the inject method.\n   * ```js\n   *\n   *   angular.module('myApplicationModule', [])\n   *       .value('mode', 'app')\n   *       .value('version', 'v1.0.1');\n   *\n   *\n   *   describe('MyApp', function() {\n   *\n   *     // You need to load modules that you want to test,\n   *     // it loads only the \"ng\" module by default.\n   *     beforeEach(module('myApplicationModule'));\n   *\n   *\n   *     // inject() is used to inject arguments of all given functions\n   *     it('should provide a version', inject(function(mode, version) {\n   *       expect(version).toEqual('v1.0.1');\n   *       expect(mode).toEqual('app');\n   *     }));\n   *\n   *\n   *     // The inject and module method can also be used inside of the it or beforeEach\n   *     it('should override a version and test the new version is injected', function() {\n   *       // module() takes functions or strings (module aliases)\n   *       module(function($provide) {\n   *         $provide.value('version', 'overridden'); // override version here\n   *       });\n   *\n   *       inject(function(version) {\n   *         expect(version).toEqual('overridden');\n   *       });\n   *     });\n   *   });\n   *\n   * ```\n   *\n   * @param {...Function} fns any number of functions which will be injected using the injector.\n   */\n\n\n\n  var ErrorAddingDeclarationLocationStack = function ErrorAddingDeclarationLocationStack(e, errorForStack) {\n    this.message = e.message;\n    this.name = e.name;\n    if (e.line) this.line = e.line;\n    if (e.sourceId) this.sourceId = e.sourceId;\n    if (e.stack && errorForStack)\n      this.stack = e.stack + '\\n' + errorForStack.stack;\n    if (e.stackArray) this.stackArray = e.stackArray;\n  };\n  ErrorAddingDeclarationLocationStack.prototype = Error.prototype;\n\n  window.inject = angular.mock.inject = function() {\n    var blockFns = Array.prototype.slice.call(arguments, 0);\n    var errorForStack = new Error('Declaration Location');\n    // IE10+ and PhanthomJS do not set stack trace information, until the error is thrown\n    if (!errorForStack.stack) {\n      try {\n        throw errorForStack;\n      } catch (e) { /* empty */ }\n    }\n    return wasInjectorCreated() ? WorkFn.call(currentSpec) : WorkFn;\n    /////////////////////\n    function WorkFn() {\n      var modules = currentSpec.$modules || [];\n      var strictDi = !!currentSpec.$injectorStrict;\n      modules.unshift(['$injector', function($injector) {\n        currentSpec.$providerInjector = $injector;\n      }]);\n      modules.unshift('ngMock');\n      modules.unshift('ng');\n      var injector = currentSpec.$injector;\n      if (!injector) {\n        if (strictDi) {\n          // If strictDi is enabled, annotate the providerInjector blocks\n          angular.forEach(modules, function(moduleFn) {\n            if (typeof moduleFn === 'function') {\n              angular.injector.$$annotate(moduleFn);\n            }\n          });\n        }\n        injector = currentSpec.$injector = angular.injector(modules, strictDi);\n        currentSpec.$injectorStrict = strictDi;\n      }\n      for (var i = 0, ii = blockFns.length; i < ii; i++) {\n        if (currentSpec.$injectorStrict) {\n          // If the injector is strict / strictDi, and the spec wants to inject using automatic\n          // annotation, then annotate the function here.\n          injector.annotate(blockFns[i]);\n        }\n        try {\n          injector.invoke(blockFns[i] || angular.noop, this);\n        } catch (e) {\n          if (e.stack && errorForStack) {\n            throw new ErrorAddingDeclarationLocationStack(e, errorForStack);\n          }\n          throw e;\n        } finally {\n          errorForStack = null;\n        }\n      }\n    }\n  };\n\n\n  angular.mock.inject.strictDi = function(value) {\n    value = arguments.length ? !!value : true;\n    return wasInjectorCreated() ? workFn() : workFn;\n\n    function workFn() {\n      if (value !== currentSpec.$injectorStrict) {\n        if (currentSpec.$injector) {\n          throw new Error('Injector already created, can not modify strict annotations');\n        } else {\n          currentSpec.$injectorStrict = value;\n        }\n      }\n    }\n  };\n\n  function InjectorState() {\n    this.shared = false;\n    this.sharedError = null;\n\n    this.cleanupAfterEach = function() {\n      return !this.shared || this.sharedError;\n    };\n  }\n})(window.jasmine || window.mocha);\n\n'use strict';\n\n(function() {\n  /**\n   * @ngdoc function\n   * @name browserTrigger\n   * @description\n   *\n   * This is a global (window) function that is only available when the {@link ngMock} module is\n   * included.\n   *\n   * It can be used to trigger a native browser event on an element, which is useful for unit testing.\n   *\n   *\n   * @param {Object} element Either a wrapped jQuery/jqLite node or a DOMElement\n   * @param {string=} eventType Optional event type. If none is specified, the function tries\n   *                            to determine the right event type for the element, e.g. `change` for\n   *                            `input[text]`.\n   * @param {Object=} eventData An optional object which contains additional event data that is used\n   *                            when creating the event:\n   *\n   *  - `bubbles`: [Event.bubbles](https://developer.mozilla.org/docs/Web/API/Event/bubbles).\n   *    Not applicable to all events.\n   *\n   *  - `cancelable`: [Event.cancelable](https://developer.mozilla.org/docs/Web/API/Event/cancelable).\n   *    Not applicable to all events.\n   *\n   *  - `charcode`: [charCode](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/charcode)\n   *    for keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `data`: [data](https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent/data) for\n   *    [CompositionEvents](https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent).\n   *\n   *  - `elapsedTime`: the elapsedTime for\n   *    [TransitionEvent](https://developer.mozilla.org/docs/Web/API/TransitionEvent)\n   *    and [AnimationEvent](https://developer.mozilla.org/docs/Web/API/AnimationEvent).\n   *\n   *  - `keycode`: [keyCode](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/keycode)\n   *    for keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `keys`: an array of possible modifier keys (ctrl, alt, shift, meta) for\n   *    [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent) and\n   *    keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `relatedTarget`: the\n   *    [relatedTarget](https://developer.mozilla.org/docs/Web/API/MouseEvent/relatedTarget)\n   *    for [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent).\n   *\n   *  - `which`: [which](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/which)\n   *    for keyboard events (keydown, keypress, and keyup).\n   *\n   *  - `x`: x-coordinates for [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent)\n   *    and [TouchEvent](https://developer.mozilla.org/docs/Web/API/TouchEvent).\n   *\n   *  - `y`: y-coordinates for [MouseEvent](https://developer.mozilla.org/docs/Web/API/MouseEvent)\n   *    and [TouchEvent](https://developer.mozilla.org/docs/Web/API/TouchEvent).\n   *\n   */\n  window.browserTrigger = function browserTrigger(element, eventType, eventData) {\n    if (element && !element.nodeName) element = element[0];\n    if (!element) return;\n\n    eventData = eventData || {};\n    var relatedTarget = eventData.relatedTarget || element;\n    var keys = eventData.keys;\n    var x = eventData.x;\n    var y = eventData.y;\n\n    var inputType = (element.type) ? element.type.toLowerCase() : null,\n        nodeName = element.nodeName.toLowerCase();\n    if (!eventType) {\n      eventType = {\n        'text':            'change',\n        'textarea':        'change',\n        'hidden':          'change',\n        'password':        'change',\n        'button':          'click',\n        'submit':          'click',\n        'reset':           'click',\n        'image':           'click',\n        'checkbox':        'click',\n        'radio':           'click',\n        'select-one':      'change',\n        'select-multiple': 'change',\n        '_default_':       'click'\n      }[inputType || '_default_'];\n    }\n\n    if (nodeName === 'option') {\n      element.parentNode.value = element.value;\n      element = element.parentNode;\n      eventType = 'change';\n    }\n\n    keys = keys || [];\n    function pressed(key) {\n      return keys.indexOf(key) !== -1;\n    }\n\n    var evnt;\n    if (/transitionend/.test(eventType)) {\n      if (window.WebKitTransitionEvent) {\n        evnt = new window.WebKitTransitionEvent(eventType, eventData);\n        evnt.initEvent(eventType, eventData.bubbles, true);\n      } else {\n        try {\n          evnt = new window.TransitionEvent(eventType, eventData);\n        } catch (e) {\n          evnt = window.document.createEvent('TransitionEvent');\n          evnt.initTransitionEvent(eventType, eventData.bubbles, null, null, eventData.elapsedTime || 0);\n        }\n      }\n    } else if (/animationend/.test(eventType)) {\n      if (window.WebKitAnimationEvent) {\n        evnt = new window.WebKitAnimationEvent(eventType, eventData);\n        evnt.initEvent(eventType, eventData.bubbles, true);\n      } else {\n        try {\n          evnt = new window.AnimationEvent(eventType, eventData);\n        } catch (e) {\n          evnt = window.document.createEvent('AnimationEvent');\n          evnt.initAnimationEvent(eventType, eventData.bubbles, null, null, eventData.elapsedTime || 0);\n        }\n      }\n    } else if (/touch/.test(eventType) && supportsTouchEvents()) {\n      evnt = createTouchEvent(element, eventType, x, y);\n    } else if (/key/.test(eventType)) {\n      evnt = window.document.createEvent('Events');\n      evnt.initEvent(eventType, eventData.bubbles, eventData.cancelable);\n      evnt.view = window;\n      evnt.ctrlKey = pressed('ctrl');\n      evnt.altKey = pressed('alt');\n      evnt.shiftKey = pressed('shift');\n      evnt.metaKey = pressed('meta');\n      evnt.keyCode = eventData.keyCode;\n      evnt.charCode = eventData.charCode;\n      evnt.which = eventData.which;\n    } else if (/composition/.test(eventType)) {\n      try {\n        evnt = new window.CompositionEvent(eventType, {\n          data: eventData.data\n        });\n      } catch (e) {\n        // Support: IE9+\n        evnt = window.document.createEvent('CompositionEvent', {});\n        evnt.initCompositionEvent(\n          eventType,\n          eventData.bubbles,\n          eventData.cancelable,\n          window,\n          eventData.data,\n          null\n        );\n      }\n\n    } else {\n      evnt = window.document.createEvent('MouseEvents');\n      x = x || 0;\n      y = y || 0;\n      evnt.initMouseEvent(eventType, true, true, window, 0, x, y, x, y, pressed('ctrl'),\n          pressed('alt'), pressed('shift'), pressed('meta'), 0, relatedTarget);\n    }\n\n    /* we're unable to change the timeStamp value directly so this\n     * is only here to allow for testing where the timeStamp value is\n     * read */\n    evnt.$manualTimeStamp = eventData.timeStamp;\n\n    if (!evnt) return;\n\n    if (!eventData.bubbles || supportsEventBubblingInDetachedTree() || isAttachedToDocument(element)) {\n      return element.dispatchEvent(evnt);\n    } else {\n      triggerForPath(element, evnt);\n    }\n  };\n\n  function supportsTouchEvents() {\n    if ('_cached' in supportsTouchEvents) {\n      return supportsTouchEvents._cached;\n    }\n    if (!window.document.createTouch || !window.document.createTouchList) {\n      supportsTouchEvents._cached = false;\n      return false;\n    }\n    try {\n      window.document.createEvent('TouchEvent');\n    } catch (e) {\n      supportsTouchEvents._cached = false;\n      return false;\n    }\n    supportsTouchEvents._cached = true;\n    return true;\n  }\n\n  function createTouchEvent(element, eventType, x, y) {\n    var evnt = new window.Event(eventType);\n    x = x || 0;\n    y = y || 0;\n\n    var touch = window.document.createTouch(window, element, Date.now(), x, y, x, y);\n    var touches = window.document.createTouchList(touch);\n\n    evnt.touches = touches;\n\n    return evnt;\n  }\n\n  function supportsEventBubblingInDetachedTree() {\n    if ('_cached' in supportsEventBubblingInDetachedTree) {\n      return supportsEventBubblingInDetachedTree._cached;\n    }\n    supportsEventBubblingInDetachedTree._cached = false;\n    var doc = window.document;\n    if (doc) {\n      var parent = doc.createElement('div'),\n          child = parent.cloneNode();\n      parent.appendChild(child);\n      parent.addEventListener('e', function() {\n        supportsEventBubblingInDetachedTree._cached = true;\n      });\n      var evnt = window.document.createEvent('Events');\n      evnt.initEvent('e', true, true);\n      child.dispatchEvent(evnt);\n    }\n    return supportsEventBubblingInDetachedTree._cached;\n  }\n\n  function triggerForPath(element, evnt) {\n    var stop = false;\n\n    var _stopPropagation = evnt.stopPropagation;\n    evnt.stopPropagation = function() {\n      stop = true;\n      _stopPropagation.apply(evnt, arguments);\n    };\n    patchEventTargetForBubbling(evnt, element);\n    do {\n      element.dispatchEvent(evnt);\n      // eslint-disable-next-line no-unmodified-loop-condition\n    } while (!stop && (element = element.parentNode));\n  }\n\n  function patchEventTargetForBubbling(event, target) {\n    event._target = target;\n    Object.defineProperty(event, 'target', {get: function() { return this._target;}});\n  }\n\n  function isAttachedToDocument(element) {\n    while ((element = element.parentNode)) {\n        if (element === window) {\n            return true;\n        }\n    }\n    return false;\n  }\n})();\n\n\n})(window, window.angular);\n"
  },
  {
    "path": "test/angular/1.7/angular.js",
    "content": "/**\n * @license AngularJS v1.7.9\n * (c) 2010-2018 Google, Inc. http://angularjs.org\n * License: MIT\n */\n(function(window) {'use strict';\n\n/* exported\n  minErrConfig,\n  errorHandlingConfig,\n  isValidObjectMaxDepth\n*/\n\nvar minErrConfig = {\n  objectMaxDepth: 5,\n  urlErrorParamsEnabled: true\n};\n\n/**\n * @ngdoc function\n * @name angular.errorHandlingConfig\n * @module ng\n * @kind function\n *\n * @description\n * Configure several aspects of error handling in AngularJS if used as a setter or return the\n * current configuration if used as a getter. The following options are supported:\n *\n * - **objectMaxDepth**: The maximum depth to which objects are traversed when stringified for error messages.\n *\n * Omitted or undefined options will leave the corresponding configuration values unchanged.\n *\n * @param {Object=} config - The configuration object. May only contain the options that need to be\n *     updated. Supported keys:\n *\n * * `objectMaxDepth`  **{Number}** - The max depth for stringifying objects. Setting to a\n *   non-positive or non-numeric value, removes the max depth limit.\n *   Default: 5\n *\n * * `urlErrorParamsEnabled`  **{Boolean}** - Specifies wether the generated error url will\n *   contain the parameters of the thrown error. Disabling the parameters can be useful if the\n *   generated error url is very long.\n *\n *   Default: true. When used without argument, it returns the current value.\n */\nfunction errorHandlingConfig(config) {\n  if (isObject(config)) {\n    if (isDefined(config.objectMaxDepth)) {\n      minErrConfig.objectMaxDepth = isValidObjectMaxDepth(config.objectMaxDepth) ? config.objectMaxDepth : NaN;\n    }\n    if (isDefined(config.urlErrorParamsEnabled) && isBoolean(config.urlErrorParamsEnabled)) {\n      minErrConfig.urlErrorParamsEnabled = config.urlErrorParamsEnabled;\n    }\n  } else {\n    return minErrConfig;\n  }\n}\n\n/**\n * @private\n * @param {Number} maxDepth\n * @return {boolean}\n */\nfunction isValidObjectMaxDepth(maxDepth) {\n  return isNumber(maxDepth) && maxDepth > 0;\n}\n\n\n/**\n * @description\n *\n * This object provides a utility for producing rich Error messages within\n * AngularJS. It can be called as follows:\n *\n * var exampleMinErr = minErr('example');\n * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);\n *\n * The above creates an instance of minErr in the example namespace. The\n * resulting error will have a namespaced error code of example.one.  The\n * resulting error will replace {0} with the value of foo, and {1} with the\n * value of bar. The object is not restricted in the number of arguments it can\n * take.\n *\n * If fewer arguments are specified than necessary for interpolation, the extra\n * interpolation markers will be preserved in the final string.\n *\n * Since data will be parsed statically during a build step, some restrictions\n * are applied with respect to how minErr instances are created and called.\n * Instances should have names of the form namespaceMinErr for a minErr created\n * using minErr('namespace') . Error codes, namespaces and template strings\n * should all be static strings, not variables or general expressions.\n *\n * @param {string} module The namespace to use for the new minErr instance.\n * @param {function} ErrorConstructor Custom error constructor to be instantiated when returning\n *   error from returned function, for cases when a particular type of error is useful.\n * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance\n */\n\nfunction minErr(module, ErrorConstructor) {\n  ErrorConstructor = ErrorConstructor || Error;\n\n  var url = 'https://errors.angularjs.org/1.7.9/';\n  var regex = url.replace('.', '\\\\.') + '[\\\\s\\\\S]*';\n  var errRegExp = new RegExp(regex, 'g');\n\n  return function() {\n    var code = arguments[0],\n      template = arguments[1],\n      message = '[' + (module ? module + ':' : '') + code + '] ',\n      templateArgs = sliceArgs(arguments, 2).map(function(arg) {\n        return toDebugString(arg, minErrConfig.objectMaxDepth);\n      }),\n      paramPrefix, i;\n\n    // A minErr message has two parts: the message itself and the url that contains the\n    // encoded message.\n    // The message's parameters can contain other error messages which also include error urls.\n    // To prevent the messages from getting too long, we strip the error urls from the parameters.\n\n    message += template.replace(/\\{\\d+\\}/g, function(match) {\n      var index = +match.slice(1, -1);\n\n      if (index < templateArgs.length) {\n        return templateArgs[index].replace(errRegExp, '');\n      }\n\n      return match;\n    });\n\n    message += '\\n' + url + (module ? module + '/' : '') + code;\n\n    if (minErrConfig.urlErrorParamsEnabled) {\n      for (i = 0, paramPrefix = '?'; i < templateArgs.length; i++, paramPrefix = '&') {\n        message += paramPrefix + 'p' + i + '=' + encodeURIComponent(templateArgs[i]);\n      }\n    }\n\n    return new ErrorConstructor(message);\n  };\n}\n\n/* We need to tell ESLint what variables are being exported */\n/* exported\n  angular,\n  msie,\n  jqLite,\n  jQuery,\n  slice,\n  splice,\n  push,\n  toString,\n  minErrConfig,\n  errorHandlingConfig,\n  isValidObjectMaxDepth,\n  ngMinErr,\n  angularModule,\n  uid,\n  REGEX_STRING_REGEXP,\n  VALIDITY_STATE_PROPERTY,\n\n  lowercase,\n  uppercase,\n  nodeName_,\n  isArrayLike,\n  forEach,\n  forEachSorted,\n  reverseParams,\n  nextUid,\n  setHashKey,\n  extend,\n  toInt,\n  inherit,\n  merge,\n  noop,\n  identity,\n  valueFn,\n  isUndefined,\n  isDefined,\n  isObject,\n  isBlankObject,\n  isString,\n  isNumber,\n  isNumberNaN,\n  isDate,\n  isError,\n  isArray,\n  isFunction,\n  isRegExp,\n  isWindow,\n  isScope,\n  isFile,\n  isFormData,\n  isBlob,\n  isBoolean,\n  isPromiseLike,\n  trim,\n  escapeForRegexp,\n  isElement,\n  makeMap,\n  includes,\n  arrayRemove,\n  copy,\n  simpleCompare,\n  equals,\n  csp,\n  jq,\n  concat,\n  sliceArgs,\n  bind,\n  toJsonReplacer,\n  toJson,\n  fromJson,\n  convertTimezoneToLocal,\n  timezoneToOffset,\n  addDateMinutes,\n  startingTag,\n  tryDecodeURIComponent,\n  parseKeyValue,\n  toKeyValue,\n  encodeUriSegment,\n  encodeUriQuery,\n  angularInit,\n  bootstrap,\n  getTestability,\n  snake_case,\n  bindJQuery,\n  assertArg,\n  assertArgFn,\n  assertNotHasOwnProperty,\n  getter,\n  getBlockNodes,\n  hasOwnProperty,\n  createMap,\n  stringify,\n\n  NODE_TYPE_ELEMENT,\n  NODE_TYPE_ATTRIBUTE,\n  NODE_TYPE_TEXT,\n  NODE_TYPE_COMMENT,\n  NODE_TYPE_DOCUMENT,\n  NODE_TYPE_DOCUMENT_FRAGMENT\n*/\n\n////////////////////////////////////\n\n/**\n * @ngdoc module\n * @name ng\n * @module ng\n * @installation\n * @description\n *\n * The ng module is loaded by default when an AngularJS application is started. The module itself\n * contains the essential components for an AngularJS application to function. The table below\n * lists a high level breakdown of each of the services/factories, filters, directives and testing\n * components available within this core module.\n *\n */\n\nvar REGEX_STRING_REGEXP = /^\\/(.+)\\/([a-z]*)$/;\n\n// The name of a form control's ValidityState property.\n// This is used so that it's possible for internal tests to create mock ValidityStates.\nvar VALIDITY_STATE_PROPERTY = 'validity';\n\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\n/**\n * @private\n *\n * @description Converts the specified string to lowercase.\n * @param {string} string String to be converted to lowercase.\n * @returns {string} Lowercased string.\n */\nvar lowercase = function(string) {return isString(string) ? string.toLowerCase() : string;};\n\n/**\n * @private\n *\n * @description Converts the specified string to uppercase.\n * @param {string} string String to be converted to uppercase.\n * @returns {string} Uppercased string.\n */\nvar uppercase = function(string) {return isString(string) ? string.toUpperCase() : string;};\n\n\nvar\n    msie,             // holds major version number for IE, or NaN if UA is not IE.\n    jqLite,           // delay binding since jQuery could be loaded after us.\n    jQuery,           // delay binding\n    slice             = [].slice,\n    splice            = [].splice,\n    push              = [].push,\n    toString          = Object.prototype.toString,\n    getPrototypeOf    = Object.getPrototypeOf,\n    ngMinErr          = minErr('ng'),\n\n    /** @name angular */\n    angular           = window.angular || (window.angular = {}),\n    angularModule,\n    uid               = 0;\n\n// Support: IE 9-11 only\n/**\n * documentMode is an IE-only property\n * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx\n */\nmsie = window.document.documentMode;\n\n\n/**\n * @private\n * @param {*} obj\n * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,\n *                   String ...)\n */\nfunction isArrayLike(obj) {\n\n  // `null`, `undefined` and `window` are not array-like\n  if (obj == null || isWindow(obj)) return false;\n\n  // arrays, strings and jQuery/jqLite objects are array like\n  // * jqLite is either the jQuery or jqLite constructor function\n  // * we have to check the existence of jqLite first as this method is called\n  //   via the forEach method when constructing the jqLite object in the first place\n  if (isArray(obj) || isString(obj) || (jqLite && obj instanceof jqLite)) return true;\n\n  // Support: iOS 8.2 (not reproducible in simulator)\n  // \"length\" in obj used to prevent JIT error (gh-11508)\n  var length = 'length' in Object(obj) && obj.length;\n\n  // NodeList objects (with `item` method) and\n  // other objects with suitable length characteristics are array-like\n  return isNumber(length) && (length >= 0 && (length - 1) in obj || typeof obj.item === 'function');\n\n}\n\n/**\n * @ngdoc function\n * @name angular.forEach\n * @module ng\n * @kind function\n *\n * @description\n * Invokes the `iterator` function once for each item in `obj` collection, which can be either an\n * object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value`\n * is the value of an object property or an array element, `key` is the object property key or\n * array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.\n *\n * It is worth noting that `.forEach` does not iterate over inherited properties because it filters\n * using the `hasOwnProperty` method.\n *\n * Unlike ES262's\n * [Array.prototype.forEach](http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.18),\n * providing 'undefined' or 'null' values for `obj` will not throw a TypeError, but rather just\n * return the value provided.\n *\n   ```js\n     var values = {name: 'misko', gender: 'male'};\n     var log = [];\n     angular.forEach(values, function(value, key) {\n       this.push(key + ': ' + value);\n     }, log);\n     expect(log).toEqual(['name: misko', 'gender: male']);\n   ```\n *\n * @param {Object|Array} obj Object to iterate over.\n * @param {Function} iterator Iterator function.\n * @param {Object=} context Object to become context (`this`) for the iterator function.\n * @returns {Object|Array} Reference to `obj`.\n */\n\nfunction forEach(obj, iterator, context) {\n  var key, length;\n  if (obj) {\n    if (isFunction(obj)) {\n      for (key in obj) {\n        if (key !== 'prototype' && key !== 'length' && key !== 'name' && obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (isArray(obj) || isArrayLike(obj)) {\n      var isPrimitive = typeof obj !== 'object';\n      for (key = 0, length = obj.length; key < length; key++) {\n        if (isPrimitive || key in obj) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (obj.forEach && obj.forEach !== forEach) {\n        obj.forEach(iterator, context, obj);\n    } else if (isBlankObject(obj)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in obj) {\n        iterator.call(context, obj[key], key, obj);\n      }\n    } else if (typeof obj.hasOwnProperty === 'function') {\n      // Slow path for objects inheriting Object.prototype, hasOwnProperty check needed\n      for (key in obj) {\n        if (obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else {\n      // Slow path for objects which do not have a method `hasOwnProperty`\n      for (key in obj) {\n        if (hasOwnProperty.call(obj, key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    }\n  }\n  return obj;\n}\n\nfunction forEachSorted(obj, iterator, context) {\n  var keys = Object.keys(obj).sort();\n  for (var i = 0; i < keys.length; i++) {\n    iterator.call(context, obj[keys[i]], keys[i]);\n  }\n  return keys;\n}\n\n\n/**\n * when using forEach the params are value, key, but it is often useful to have key, value.\n * @param {function(string, *)} iteratorFn\n * @returns {function(*, string)}\n */\nfunction reverseParams(iteratorFn) {\n  return function(value, key) {iteratorFn(key, value);};\n}\n\n/**\n * A consistent way of creating unique IDs in angular.\n *\n * Using simple numbers allows us to generate 28.6 million unique ids per second for 10 years before\n * we hit number precision issues in JavaScript.\n *\n * Math.pow(2,53) / 60 / 60 / 24 / 365 / 10 = 28.6M\n *\n * @returns {number} an unique alpha-numeric string\n */\nfunction nextUid() {\n  return ++uid;\n}\n\n\n/**\n * Set or clear the hashkey for an object.\n * @param obj object\n * @param h the hashkey (!truthy to delete the hashkey)\n */\nfunction setHashKey(obj, h) {\n  if (h) {\n    obj.$$hashKey = h;\n  } else {\n    delete obj.$$hashKey;\n  }\n}\n\n\nfunction baseExtend(dst, objs, deep) {\n  var h = dst.$$hashKey;\n\n  for (var i = 0, ii = objs.length; i < ii; ++i) {\n    var obj = objs[i];\n    if (!isObject(obj) && !isFunction(obj)) continue;\n    var keys = Object.keys(obj);\n    for (var j = 0, jj = keys.length; j < jj; j++) {\n      var key = keys[j];\n      var src = obj[key];\n\n      if (deep && isObject(src)) {\n        if (isDate(src)) {\n          dst[key] = new Date(src.valueOf());\n        } else if (isRegExp(src)) {\n          dst[key] = new RegExp(src);\n        } else if (src.nodeName) {\n          dst[key] = src.cloneNode(true);\n        } else if (isElement(src)) {\n          dst[key] = src.clone();\n        } else {\n          if (key !== '__proto__') {\n            if (!isObject(dst[key])) dst[key] = isArray(src) ? [] : {};\n            baseExtend(dst[key], [src], true);\n          }\n        }\n      } else {\n        dst[key] = src;\n      }\n    }\n  }\n\n  setHashKey(dst, h);\n  return dst;\n}\n\n/**\n * @ngdoc function\n * @name angular.extend\n * @module ng\n * @kind function\n *\n * @description\n * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n * to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n * by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.\n *\n * **Note:** Keep in mind that `angular.extend` does not support recursive merge (deep copy). Use\n * {@link angular.merge} for this.\n *\n * @param {Object} dst Destination object.\n * @param {...Object} src Source object(s).\n * @returns {Object} Reference to `dst`.\n */\nfunction extend(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), false);\n}\n\n\n/**\n* @ngdoc function\n* @name angular.merge\n* @module ng\n* @kind function\n*\n* @description\n* Deeply extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n* to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n* by passing an empty object as the target: `var object = angular.merge({}, object1, object2)`.\n*\n* Unlike {@link angular.extend extend()}, `merge()` recursively descends into object properties of source\n* objects, performing a deep copy.\n*\n* @deprecated\n* sinceVersion=\"1.6.5\"\n* This function is deprecated, but will not be removed in the 1.x lifecycle.\n* There are edge cases (see {@link angular.merge#known-issues known issues}) that are not\n* supported by this function. We suggest using another, similar library for all-purpose merging,\n* such as [lodash's merge()](https://lodash.com/docs/4.17.4#merge).\n*\n* @knownIssue\n* This is a list of (known) object types that are not handled correctly by this function:\n* - [`Blob`](https://developer.mozilla.org/docs/Web/API/Blob)\n* - [`MediaStream`](https://developer.mozilla.org/docs/Web/API/MediaStream)\n* - [`CanvasGradient`](https://developer.mozilla.org/docs/Web/API/CanvasGradient)\n* - AngularJS {@link $rootScope.Scope scopes};\n*\n* `angular.merge` also does not support merging objects with circular references.\n*\n* @param {Object} dst Destination object.\n* @param {...Object} src Source object(s).\n* @returns {Object} Reference to `dst`.\n*/\nfunction merge(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), true);\n}\n\n\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nvar isNumberNaN = Number.isNaN || function isNumberNaN(num) {\n  // eslint-disable-next-line no-self-compare\n  return num !== num;\n};\n\n\nfunction inherit(parent, extra) {\n  return extend(Object.create(parent), extra);\n}\n\n/**\n * @ngdoc function\n * @name angular.noop\n * @module ng\n * @kind function\n *\n * @description\n * A function that performs no operations. This function can be useful when writing code in the\n * functional style.\n   ```js\n     function foo(callback) {\n       var result = calculateResult();\n       (callback || angular.noop)(result);\n     }\n   ```\n */\nfunction noop() {}\nnoop.$inject = [];\n\n\n/**\n * @ngdoc function\n * @name angular.identity\n * @module ng\n * @kind function\n *\n * @description\n * A function that returns its first argument. This function is useful when writing code in the\n * functional style.\n *\n   ```js\n   function transformer(transformationFn, value) {\n     return (transformationFn || angular.identity)(value);\n   };\n\n   // E.g.\n   function getResult(fn, input) {\n     return (fn || angular.identity)(input);\n   };\n\n   getResult(function(n) { return n * 2; }, 21);   // returns 42\n   getResult(null, 21);                            // returns 21\n   getResult(undefined, 21);                       // returns 21\n   ```\n *\n * @param {*} value to be returned.\n * @returns {*} the value passed in.\n */\nfunction identity($) {return $;}\nidentity.$inject = [];\n\n\nfunction valueFn(value) {return function valueRef() {return value;};}\n\nfunction hasCustomToString(obj) {\n  return isFunction(obj.toString) && obj.toString !== toString;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isUndefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is undefined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is undefined.\n */\nfunction isUndefined(value) {return typeof value === 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is defined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is defined.\n */\nfunction isDefined(value) {return typeof value !== 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isObject\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not\n * considered to be objects. Note that JavaScript arrays are objects.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Object` but not `null`.\n */\nfunction isObject(value) {\n  // http://jsperf.com/isobject4\n  return value !== null && typeof value === 'object';\n}\n\n\n/**\n * Determine if a value is an object with a null prototype\n *\n * @returns {boolean} True if `value` is an `Object` with a null prototype\n */\nfunction isBlankObject(value) {\n  return value !== null && typeof value === 'object' && !getPrototypeOf(value);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isString\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `String`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `String`.\n */\nfunction isString(value) {return typeof value === 'string';}\n\n\n/**\n * @ngdoc function\n * @name angular.isNumber\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Number`.\n *\n * This includes the \"special\" numbers `NaN`, `+Infinity` and `-Infinity`.\n *\n * If you wish to exclude these then you can use the native\n * [`isFinite'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)\n * method.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Number`.\n */\nfunction isNumber(value) {return typeof value === 'number';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDate\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a value is a date.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Date`.\n */\nfunction isDate(value) {\n  return toString.call(value) === '[object Date]';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isArray\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Array`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Array`.\n */\nfunction isArray(arr) {\n  return Array.isArray(arr) || arr instanceof Array;\n}\n\n/**\n * @description\n * Determines if a reference is an `Error`.\n * Loosely based on https://www.npmjs.com/package/iserror\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Error`.\n */\nfunction isError(value) {\n  var tag = toString.call(value);\n  switch (tag) {\n    case '[object Error]': return true;\n    case '[object Exception]': return true;\n    case '[object DOMException]': return true;\n    default: return value instanceof Error;\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.isFunction\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Function`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Function`.\n */\nfunction isFunction(value) {return typeof value === 'function';}\n\n\n/**\n * Determines if a value is a regular expression object.\n *\n * @private\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `RegExp`.\n */\nfunction isRegExp(value) {\n  return toString.call(value) === '[object RegExp]';\n}\n\n\n/**\n * Checks if `obj` is a window object.\n *\n * @private\n * @param {*} obj Object to check\n * @returns {boolean} True if `obj` is a window obj.\n */\nfunction isWindow(obj) {\n  return obj && obj.window === obj;\n}\n\n\nfunction isScope(obj) {\n  return obj && obj.$evalAsync && obj.$watch;\n}\n\n\nfunction isFile(obj) {\n  return toString.call(obj) === '[object File]';\n}\n\n\nfunction isFormData(obj) {\n  return toString.call(obj) === '[object FormData]';\n}\n\n\nfunction isBlob(obj) {\n  return toString.call(obj) === '[object Blob]';\n}\n\n\nfunction isBoolean(value) {\n  return typeof value === 'boolean';\n}\n\n\nfunction isPromiseLike(obj) {\n  return obj && isFunction(obj.then);\n}\n\n\nvar TYPED_ARRAY_REGEXP = /^\\[object (?:Uint8|Uint8Clamped|Uint16|Uint32|Int8|Int16|Int32|Float32|Float64)Array]$/;\nfunction isTypedArray(value) {\n  return value && isNumber(value.length) && TYPED_ARRAY_REGEXP.test(toString.call(value));\n}\n\nfunction isArrayBuffer(obj) {\n  return toString.call(obj) === '[object ArrayBuffer]';\n}\n\n\nvar trim = function(value) {\n  return isString(value) ? value.trim() : value;\n};\n\n// Copied from:\n// http://docs.closure-library.googlecode.com/git/local_closure_goog_string_string.js.source.html#line1021\n// Prereq: s is a string.\nvar escapeForRegexp = function(s) {\n  return s\n    .replace(/([-()[\\]{}+?*.$^|,:#<!\\\\])/g, '\\\\$1')\n    // eslint-disable-next-line no-control-regex\n    .replace(/\\x08/g, '\\\\x08');\n};\n\n\n/**\n * @ngdoc function\n * @name angular.isElement\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a DOM element (or wrapped jQuery element).\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).\n */\nfunction isElement(node) {\n  return !!(node &&\n    (node.nodeName  // We are a direct element.\n    || (node.prop && node.attr && node.find)));  // We have an on and find method part of jQuery API.\n}\n\n/**\n * @param str 'key1,key2,...'\n * @returns {object} in the form of {key1:true, key2:true, ...}\n */\nfunction makeMap(str) {\n  var obj = {}, items = str.split(','), i;\n  for (i = 0; i < items.length; i++) {\n    obj[items[i]] = true;\n  }\n  return obj;\n}\n\n\nfunction nodeName_(element) {\n  return lowercase(element.nodeName || (element[0] && element[0].nodeName));\n}\n\nfunction includes(array, obj) {\n  return Array.prototype.indexOf.call(array, obj) !== -1;\n}\n\nfunction arrayRemove(array, value) {\n  var index = array.indexOf(value);\n  if (index >= 0) {\n    array.splice(index, 1);\n  }\n  return index;\n}\n\n/**\n * @ngdoc function\n * @name angular.copy\n * @module ng\n * @kind function\n *\n * @description\n * Creates a deep copy of `source`, which should be an object or an array. This functions is used\n * internally, mostly in the change-detection code. It is not intended as an all-purpose copy\n * function, and has several limitations (see below).\n *\n * * If no destination is supplied, a copy of the object or array is created.\n * * If a destination is provided, all of its elements (for arrays) or properties (for objects)\n *   are deleted and then all elements/properties from the source are copied to it.\n * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.\n * * If `source` is identical to `destination` an exception will be thrown.\n *\n * <br />\n *\n * <div class=\"alert alert-warning\">\n *   Only enumerable properties are taken into account. Non-enumerable properties (both on `source`\n *   and on `destination`) will be ignored.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n *   `angular.copy` does not check if destination and source are of the same type. It's the\n *   developer's responsibility to make sure they are compatible.\n * </div>\n *\n * @knownIssue\n * This is a non-exhaustive list of object types / features that are not handled correctly by\n * `angular.copy`. Note that since this functions is used by the change detection code, this\n * means binding or watching objects of these types (or that include these types) might not work\n * correctly.\n * - [`File`](https://developer.mozilla.org/docs/Web/API/File)\n * - [`Map`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Map)\n * - [`ImageData`](https://developer.mozilla.org/docs/Web/API/ImageData)\n * - [`MediaStream`](https://developer.mozilla.org/docs/Web/API/MediaStream)\n * - [`Set`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set)\n * - [`WeakMap`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap)\n * - ['getter'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get)/\n *   [`setter`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/set)`\n *\n * @param {*} source The source that will be used to make a copy. Can be any type, including\n *     primitives, `null`, and `undefined`.\n * @param {(Object|Array)=} destination Destination into which the source is copied. If provided,\n *     must be of the same type as `source`.\n * @returns {*} The copy or updated `destination`, if `destination` was specified.\n *\n * @example\n  <example module=\"copyExample\" name=\"angular-copy\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate class=\"simple-form\">\n          <label>Name: <input type=\"text\" ng-model=\"user.name\" /></label><br />\n          <label>Age:  <input type=\"number\" ng-model=\"user.age\" /></label><br />\n          Gender: <label><input type=\"radio\" ng-model=\"user.gender\" value=\"male\" />male</label>\n                  <label><input type=\"radio\" ng-model=\"user.gender\" value=\"female\" />female</label><br />\n          <button ng-click=\"reset()\">RESET</button>\n          <button ng-click=\"update(user)\">SAVE</button>\n        </form>\n        <pre>form = {{user | json}}</pre>\n        <pre>leader = {{leader | json}}</pre>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      // Module: copyExample\n      angular.\n        module('copyExample', []).\n        controller('ExampleController', ['$scope', function($scope) {\n          $scope.leader = {};\n\n          $scope.reset = function() {\n            // Example with 1 argument\n            $scope.user = angular.copy($scope.leader);\n          };\n\n          $scope.update = function(user) {\n            // Example with 2 arguments\n            angular.copy(user, $scope.leader);\n          };\n\n          $scope.reset();\n        }]);\n    </file>\n  </example>\n */\nfunction copy(source, destination, maxDepth) {\n  var stackSource = [];\n  var stackDest = [];\n  maxDepth = isValidObjectMaxDepth(maxDepth) ? maxDepth : NaN;\n\n  if (destination) {\n    if (isTypedArray(destination) || isArrayBuffer(destination)) {\n      throw ngMinErr('cpta', 'Can\\'t copy! TypedArray destination cannot be mutated.');\n    }\n    if (source === destination) {\n      throw ngMinErr('cpi', 'Can\\'t copy! Source and destination are identical.');\n    }\n\n    // Empty the destination object\n    if (isArray(destination)) {\n      destination.length = 0;\n    } else {\n      forEach(destination, function(value, key) {\n        if (key !== '$$hashKey') {\n          delete destination[key];\n        }\n      });\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n    return copyRecurse(source, destination, maxDepth);\n  }\n\n  return copyElement(source, maxDepth);\n\n  function copyRecurse(source, destination, maxDepth) {\n    maxDepth--;\n    if (maxDepth < 0) {\n      return '...';\n    }\n    var h = destination.$$hashKey;\n    var key;\n    if (isArray(source)) {\n      for (var i = 0, ii = source.length; i < ii; i++) {\n        destination.push(copyElement(source[i], maxDepth));\n      }\n    } else if (isBlankObject(source)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in source) {\n        destination[key] = copyElement(source[key], maxDepth);\n      }\n    } else if (source && typeof source.hasOwnProperty === 'function') {\n      // Slow path, which must rely on hasOwnProperty\n      for (key in source) {\n        if (source.hasOwnProperty(key)) {\n          destination[key] = copyElement(source[key], maxDepth);\n        }\n      }\n    } else {\n      // Slowest path --- hasOwnProperty can't be called as a method\n      for (key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          destination[key] = copyElement(source[key], maxDepth);\n        }\n      }\n    }\n    setHashKey(destination, h);\n    return destination;\n  }\n\n  function copyElement(source, maxDepth) {\n    // Simple values\n    if (!isObject(source)) {\n      return source;\n    }\n\n    // Already copied values\n    var index = stackSource.indexOf(source);\n    if (index !== -1) {\n      return stackDest[index];\n    }\n\n    if (isWindow(source) || isScope(source)) {\n      throw ngMinErr('cpws',\n        'Can\\'t copy! Making copies of Window or Scope instances is not supported.');\n    }\n\n    var needsRecurse = false;\n    var destination = copyType(source);\n\n    if (destination === undefined) {\n      destination = isArray(source) ? [] : Object.create(getPrototypeOf(source));\n      needsRecurse = true;\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n\n    return needsRecurse\n      ? copyRecurse(source, destination, maxDepth)\n      : destination;\n  }\n\n  function copyType(source) {\n    switch (toString.call(source)) {\n      case '[object Int8Array]':\n      case '[object Int16Array]':\n      case '[object Int32Array]':\n      case '[object Float32Array]':\n      case '[object Float64Array]':\n      case '[object Uint8Array]':\n      case '[object Uint8ClampedArray]':\n      case '[object Uint16Array]':\n      case '[object Uint32Array]':\n        return new source.constructor(copyElement(source.buffer), source.byteOffset, source.length);\n\n      case '[object ArrayBuffer]':\n        // Support: IE10\n        if (!source.slice) {\n          // If we're in this case we know the environment supports ArrayBuffer\n          /* eslint-disable no-undef */\n          var copied = new ArrayBuffer(source.byteLength);\n          new Uint8Array(copied).set(new Uint8Array(source));\n          /* eslint-enable */\n          return copied;\n        }\n        return source.slice(0);\n\n      case '[object Boolean]':\n      case '[object Number]':\n      case '[object String]':\n      case '[object Date]':\n        return new source.constructor(source.valueOf());\n\n      case '[object RegExp]':\n        var re = new RegExp(source.source, source.toString().match(/[^/]*$/)[0]);\n        re.lastIndex = source.lastIndex;\n        return re;\n\n      case '[object Blob]':\n        return new source.constructor([source], {type: source.type});\n    }\n\n    if (isFunction(source.cloneNode)) {\n      return source.cloneNode(true);\n    }\n  }\n}\n\n\n// eslint-disable-next-line no-self-compare\nfunction simpleCompare(a, b) { return a === b || (a !== a && b !== b); }\n\n\n/**\n * @ngdoc function\n * @name angular.equals\n * @module ng\n * @kind function\n *\n * @description\n * Determines if two objects or two values are equivalent. Supports value types, regular\n * expressions, arrays and objects.\n *\n * Two objects or values are considered equivalent if at least one of the following is true:\n *\n * * Both objects or values pass `===` comparison.\n * * Both objects or values are of the same type and all of their properties are equal by\n *   comparing them with `angular.equals`.\n * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)\n * * Both values represent the same regular expression (In JavaScript,\n *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual\n *   representation matches).\n *\n * During a property comparison, properties of `function` type and properties with names\n * that begin with `$` are ignored.\n *\n * Scope and DOMWindow objects are being compared only by identify (`===`).\n *\n * @param {*} o1 Object or value to compare.\n * @param {*} o2 Object or value to compare.\n * @returns {boolean} True if arguments are equal.\n *\n * @example\n   <example module=\"equalsExample\" name=\"equalsExample\">\n     <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate>\n          <h3>User 1</h3>\n          Name: <input type=\"text\" ng-model=\"user1.name\">\n          Age: <input type=\"number\" ng-model=\"user1.age\">\n\n          <h3>User 2</h3>\n          Name: <input type=\"text\" ng-model=\"user2.name\">\n          Age: <input type=\"number\" ng-model=\"user2.age\">\n\n          <div>\n            <br/>\n            <input type=\"button\" value=\"Compare\" ng-click=\"compare()\">\n          </div>\n          User 1: <pre>{{user1 | json}}</pre>\n          User 2: <pre>{{user2 | json}}</pre>\n          Equal: <pre>{{result}}</pre>\n        </form>\n      </div>\n    </file>\n    <file name=\"script.js\">\n        angular.module('equalsExample', []).controller('ExampleController', ['$scope', function($scope) {\n          $scope.user1 = {};\n          $scope.user2 = {};\n          $scope.compare = function() {\n            $scope.result = angular.equals($scope.user1, $scope.user2);\n          };\n        }]);\n    </file>\n  </example>\n */\nfunction equals(o1, o2) {\n  if (o1 === o2) return true;\n  if (o1 === null || o2 === null) return false;\n  // eslint-disable-next-line no-self-compare\n  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN\n  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;\n  if (t1 === t2 && t1 === 'object') {\n    if (isArray(o1)) {\n      if (!isArray(o2)) return false;\n      if ((length = o1.length) === o2.length) {\n        for (key = 0; key < length; key++) {\n          if (!equals(o1[key], o2[key])) return false;\n        }\n        return true;\n      }\n    } else if (isDate(o1)) {\n      if (!isDate(o2)) return false;\n      return simpleCompare(o1.getTime(), o2.getTime());\n    } else if (isRegExp(o1)) {\n      if (!isRegExp(o2)) return false;\n      return o1.toString() === o2.toString();\n    } else {\n      if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) ||\n        isArray(o2) || isDate(o2) || isRegExp(o2)) return false;\n      keySet = createMap();\n      for (key in o1) {\n        if (key.charAt(0) === '$' || isFunction(o1[key])) continue;\n        if (!equals(o1[key], o2[key])) return false;\n        keySet[key] = true;\n      }\n      for (key in o2) {\n        if (!(key in keySet) &&\n            key.charAt(0) !== '$' &&\n            isDefined(o2[key]) &&\n            !isFunction(o2[key])) return false;\n      }\n      return true;\n    }\n  }\n  return false;\n}\n\nvar csp = function() {\n  if (!isDefined(csp.rules)) {\n\n\n    var ngCspElement = (window.document.querySelector('[ng-csp]') ||\n                    window.document.querySelector('[data-ng-csp]'));\n\n    if (ngCspElement) {\n      var ngCspAttribute = ngCspElement.getAttribute('ng-csp') ||\n                    ngCspElement.getAttribute('data-ng-csp');\n      csp.rules = {\n        noUnsafeEval: !ngCspAttribute || (ngCspAttribute.indexOf('no-unsafe-eval') !== -1),\n        noInlineStyle: !ngCspAttribute || (ngCspAttribute.indexOf('no-inline-style') !== -1)\n      };\n    } else {\n      csp.rules = {\n        noUnsafeEval: noUnsafeEval(),\n        noInlineStyle: false\n      };\n    }\n  }\n\n  return csp.rules;\n\n  function noUnsafeEval() {\n    try {\n      // eslint-disable-next-line no-new, no-new-func\n      new Function('');\n      return false;\n    } catch (e) {\n      return true;\n    }\n  }\n};\n\n/**\n * @ngdoc directive\n * @module ng\n * @name ngJq\n *\n * @element ANY\n * @param {string=} ngJq the name of the library available under `window`\n * to be used for angular.element\n * @description\n * Use this directive to force the angular.element library.  This should be\n * used to force either jqLite by leaving ng-jq blank or setting the name of\n * the jquery variable under window (eg. jQuery).\n *\n * Since AngularJS looks for this directive when it is loaded (doesn't wait for the\n * DOMContentLoaded event), it must be placed on an element that comes before the script\n * which loads angular. Also, only the first instance of `ng-jq` will be used and all\n * others ignored.\n *\n * @example\n * This example shows how to force jqLite using the `ngJq` directive to the `html` tag.\n ```html\n <!doctype html>\n <html ng-app ng-jq>\n ...\n ...\n </html>\n ```\n * @example\n * This example shows how to use a jQuery based library of a different name.\n * The library name must be available at the top most 'window'.\n ```html\n <!doctype html>\n <html ng-app ng-jq=\"jQueryLib\">\n ...\n ...\n </html>\n ```\n */\nvar jq = function() {\n  if (isDefined(jq.name_)) return jq.name_;\n  var el;\n  var i, ii = ngAttrPrefixes.length, prefix, name;\n  for (i = 0; i < ii; ++i) {\n    prefix = ngAttrPrefixes[i];\n    el = window.document.querySelector('[' + prefix.replace(':', '\\\\:') + 'jq]');\n    if (el) {\n      name = el.getAttribute(prefix + 'jq');\n      break;\n    }\n  }\n\n  return (jq.name_ = name);\n};\n\nfunction concat(array1, array2, index) {\n  return array1.concat(slice.call(array2, index));\n}\n\nfunction sliceArgs(args, startIndex) {\n  return slice.call(args, startIndex || 0);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.bind\n * @module ng\n * @kind function\n *\n * @description\n * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for\n * `fn`). You can supply optional `args` that are prebound to the function. This feature is also\n * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as\n * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).\n *\n * @param {Object} self Context which `fn` should be evaluated in.\n * @param {function()} fn Function to be bound.\n * @param {...*} args Optional arguments to be prebound to the `fn` function call.\n * @returns {function()} Function that wraps the `fn` with all the specified bindings.\n */\nfunction bind(self, fn) {\n  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];\n  if (isFunction(fn) && !(fn instanceof RegExp)) {\n    return curryArgs.length\n      ? function() {\n          return arguments.length\n            ? fn.apply(self, concat(curryArgs, arguments, 0))\n            : fn.apply(self, curryArgs);\n        }\n      : function() {\n          return arguments.length\n            ? fn.apply(self, arguments)\n            : fn.call(self);\n        };\n  } else {\n    // In IE, native methods are not functions so they cannot be bound (note: they don't need to be).\n    return fn;\n  }\n}\n\n\nfunction toJsonReplacer(key, value) {\n  var val = value;\n\n  if (typeof key === 'string' && key.charAt(0) === '$' && key.charAt(1) === '$') {\n    val = undefined;\n  } else if (isWindow(value)) {\n    val = '$WINDOW';\n  } else if (value &&  window.document === value) {\n    val = '$DOCUMENT';\n  } else if (isScope(value)) {\n    val = '$SCOPE';\n  }\n\n  return val;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.toJson\n * @module ng\n * @kind function\n *\n * @description\n * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be\n * stripped since AngularJS uses this notation internally.\n *\n * @param {Object|Array|Date|string|number|boolean} obj Input to be serialized into JSON.\n * @param {boolean|number} [pretty=2] If set to true, the JSON output will contain newlines and whitespace.\n *    If set to an integer, the JSON output will contain that many spaces per indentation.\n * @returns {string|undefined} JSON-ified string representing `obj`.\n * @knownIssue\n *\n * The Safari browser throws a `RangeError` instead of returning `null` when it tries to stringify a `Date`\n * object with an invalid date value. The only reliable way to prevent this is to monkeypatch the\n * `Date.prototype.toJSON` method as follows:\n *\n * ```\n * var _DatetoJSON = Date.prototype.toJSON;\n * Date.prototype.toJSON = function() {\n *   try {\n *     return _DatetoJSON.call(this);\n *   } catch(e) {\n *     if (e instanceof RangeError) {\n *       return null;\n *     }\n *     throw e;\n *   }\n * };\n * ```\n *\n * See https://github.com/angular/angular.js/pull/14221 for more information.\n */\nfunction toJson(obj, pretty) {\n  if (isUndefined(obj)) return undefined;\n  if (!isNumber(pretty)) {\n    pretty = pretty ? 2 : null;\n  }\n  return JSON.stringify(obj, toJsonReplacer, pretty);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.fromJson\n * @module ng\n * @kind function\n *\n * @description\n * Deserializes a JSON string.\n *\n * @param {string} json JSON string to deserialize.\n * @returns {Object|Array|string|number} Deserialized JSON string.\n */\nfunction fromJson(json) {\n  return isString(json)\n      ? JSON.parse(json)\n      : json;\n}\n\n\nvar ALL_COLONS = /:/g;\nfunction timezoneToOffset(timezone, fallback) {\n  // Support: IE 9-11 only, Edge 13-15+\n  // IE/Edge do not \"understand\" colon (`:`) in timezone\n  timezone = timezone.replace(ALL_COLONS, '');\n  var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n  return isNumberNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\n\n\nfunction addDateMinutes(date, minutes) {\n  date = new Date(date.getTime());\n  date.setMinutes(date.getMinutes() + minutes);\n  return date;\n}\n\n\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n  reverse = reverse ? -1 : 1;\n  var dateTimezoneOffset = date.getTimezoneOffset();\n  var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n  return addDateMinutes(date, reverse * (timezoneOffset - dateTimezoneOffset));\n}\n\n\n/**\n * @returns {string} Returns the string representation of the element.\n */\nfunction startingTag(element) {\n  element = jqLite(element).clone().empty();\n  var elemHtml = jqLite('<div></div>').append(element).html();\n  try {\n    return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :\n        elemHtml.\n          match(/^(<[^>]+>)/)[1].\n          replace(/^<([\\w-]+)/, function(match, nodeName) {return '<' + lowercase(nodeName);});\n  } catch (e) {\n    return lowercase(elemHtml);\n  }\n\n}\n\n\n/////////////////////////////////////////////////\n\n/**\n * Tries to decode the URI component without throwing an exception.\n *\n * @private\n * @param str value potential URI component to check.\n * @returns {boolean} True if `value` can be decoded\n * with the decodeURIComponent function.\n */\nfunction tryDecodeURIComponent(value) {\n  try {\n    return decodeURIComponent(value);\n  } catch (e) {\n    // Ignore any invalid uri component.\n  }\n}\n\n\n/**\n * Parses an escaped url query string into key-value pairs.\n * @returns {Object.<string,boolean|Array>}\n */\nfunction parseKeyValue(/**string*/keyValue) {\n  var obj = {};\n  forEach((keyValue || '').split('&'), function(keyValue) {\n    var splitPoint, key, val;\n    if (keyValue) {\n      key = keyValue = keyValue.replace(/\\+/g,'%20');\n      splitPoint = keyValue.indexOf('=');\n      if (splitPoint !== -1) {\n        key = keyValue.substring(0, splitPoint);\n        val = keyValue.substring(splitPoint + 1);\n      }\n      key = tryDecodeURIComponent(key);\n      if (isDefined(key)) {\n        val = isDefined(val) ? tryDecodeURIComponent(val) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if (isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key],val];\n        }\n      }\n    }\n  });\n  return obj;\n}\n\nfunction toKeyValue(obj) {\n  var parts = [];\n  forEach(obj, function(value, key) {\n    if (isArray(value)) {\n      forEach(value, function(arrayValue) {\n        parts.push(encodeUriQuery(key, true) +\n                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));\n      });\n    } else {\n    parts.push(encodeUriQuery(key, true) +\n               (value === true ? '' : '=' + encodeUriQuery(value, true)));\n    }\n  });\n  return parts.length ? parts.join('&') : '';\n}\n\n\n/**\n * We need our custom method because encodeURIComponent is too aggressive and doesn't follow\n * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path\n * segments:\n *    segment       = *pchar\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriSegment(val) {\n  return encodeUriQuery(val, true).\n             replace(/%26/gi, '&').\n             replace(/%3D/gi, '=').\n             replace(/%2B/gi, '+');\n}\n\n\n/**\n * This method is intended for encoding *key* or *value* parts of query component. We need a custom\n * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be\n * encoded per http://tools.ietf.org/html/rfc3986:\n *    query         = *( pchar / \"/\" / \"?\" )\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriQuery(val, pctEncodeSpaces) {\n  return encodeURIComponent(val).\n             replace(/%40/gi, '@').\n             replace(/%3A/gi, ':').\n             replace(/%24/g, '$').\n             replace(/%2C/gi, ',').\n             replace(/%3B/gi, ';').\n             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));\n}\n\nvar ngAttrPrefixes = ['ng-', 'data-ng-', 'ng:', 'x-ng-'];\n\nfunction getNgAttribute(element, ngAttr) {\n  var attr, i, ii = ngAttrPrefixes.length;\n  for (i = 0; i < ii; ++i) {\n    attr = ngAttrPrefixes[i] + ngAttr;\n    if (isString(attr = element.getAttribute(attr))) {\n      return attr;\n    }\n  }\n  return null;\n}\n\nfunction allowAutoBootstrap(document) {\n  var script = document.currentScript;\n\n  if (!script) {\n    // Support: IE 9-11 only\n    // IE does not have `document.currentScript`\n    return true;\n  }\n\n  // If the `currentScript` property has been clobbered just return false, since this indicates a probable attack\n  if (!(script instanceof window.HTMLScriptElement || script instanceof window.SVGScriptElement)) {\n    return false;\n  }\n\n  var attributes = script.attributes;\n  var srcs = [attributes.getNamedItem('src'), attributes.getNamedItem('href'), attributes.getNamedItem('xlink:href')];\n\n  return srcs.every(function(src) {\n    if (!src) {\n      return true;\n    }\n    if (!src.value) {\n      return false;\n    }\n\n    var link = document.createElement('a');\n    link.href = src.value;\n\n    if (document.location.origin === link.origin) {\n      // Same-origin resources are always allowed, even for non-whitelisted schemes.\n      return true;\n    }\n    // Disabled bootstrapping unless angular.js was loaded from a known scheme used on the web.\n    // This is to prevent angular.js bundled with browser extensions from being used to bypass the\n    // content security policy in web pages and other browser extensions.\n    switch (link.protocol) {\n      case 'http:':\n      case 'https:':\n      case 'ftp:':\n      case 'blob:':\n      case 'file:':\n      case 'data:':\n        return true;\n      default:\n        return false;\n    }\n  });\n}\n\n// Cached as it has to run during loading so that document.currentScript is available.\nvar isAutoBootstrapAllowed = allowAutoBootstrap(window.document);\n\n/**\n * @ngdoc directive\n * @name ngApp\n * @module ng\n *\n * @element ANY\n * @param {angular.Module} ngApp an optional application\n *   {@link angular.module module} name to load.\n * @param {boolean=} ngStrictDi if this attribute is present on the app element, the injector will be\n *   created in \"strict-di\" mode. This means that the application will fail to invoke functions which\n *   do not use explicit function annotation (and are thus unsuitable for minification), as described\n *   in {@link guide/di the Dependency Injection guide}, and useful debugging info will assist in\n *   tracking down the root of these bugs.\n *\n * @description\n *\n * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive\n * designates the **root element** of the application and is typically placed near the root element\n * of the page - e.g. on the `<body>` or `<html>` tags.\n *\n * There are a few things to keep in mind when using `ngApp`:\n * - only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`\n *   found in the document will be used to define the root element to auto-bootstrap as an\n *   application. To run multiple applications in an HTML document you must manually bootstrap them using\n *   {@link angular.bootstrap} instead.\n * - AngularJS applications cannot be nested within each other.\n * - Do not use a directive that uses {@link ng.$compile#transclusion transclusion} on the same element as `ngApp`.\n *   This includes directives such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and\n *   {@link ngRoute.ngView `ngView`}.\n *   Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n *   causing animations to stop working and making the injector inaccessible from outside the app.\n *\n * You can specify an **AngularJS module** to be used as the root module for the application.  This\n * module will be loaded into the {@link auto.$injector} when the application is bootstrapped. It\n * should contain the application code needed or have dependencies on other modules that will\n * contain the code. See {@link angular.module} for more information.\n *\n * In the example below if the `ngApp` directive were not placed on the `html` element then the\n * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`\n * would not be resolved to `3`.\n *\n * @example\n *\n * ### Simple Usage\n *\n * `ngApp` is the easiest, and most common way to bootstrap an application.\n *\n <example module=\"ngAppDemo\" name=\"ng-app\">\n   <file name=\"index.html\">\n   <div ng-controller=\"ngAppDemoController\">\n     I can add: {{a}} + {{b}} =  {{ a+b }}\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {\n     $scope.a = 1;\n     $scope.b = 2;\n   });\n   </file>\n </example>\n *\n * @example\n *\n * ### With `ngStrictDi`\n *\n * Using `ngStrictDi`, you would see something like this:\n *\n <example ng-app-included=\"true\" name=\"strict-di\">\n   <file name=\"index.html\">\n   <div ng-app=\"ngAppStrictDemo\" ng-strict-di>\n       <div ng-controller=\"GoodController1\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style (see\n              script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"GoodController2\">\n           Name: <input ng-model=\"name\"><br />\n           Hello, {{name}}!\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style\n              (see script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"BadController\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>The controller could not be instantiated, due to relying\n              on automatic function annotations (which are disabled in\n              strict mode). As such, the content of this section is not\n              interpolated, and there should be an error in your web console.\n           </p>\n       </div>\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppStrictDemo', [])\n     // BadController will fail to instantiate, due to relying on automatic function annotation,\n     // rather than an explicit annotation\n     .controller('BadController', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     })\n     // Unlike BadController, GoodController1 and GoodController2 will not fail to be instantiated,\n     // due to using explicit annotations using the array style and $inject property, respectively.\n     .controller('GoodController1', ['$scope', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     }])\n     .controller('GoodController2', GoodController2);\n     function GoodController2($scope) {\n       $scope.name = 'World';\n     }\n     GoodController2.$inject = ['$scope'];\n   </file>\n   <file name=\"style.css\">\n   div[ng-controller] {\n       margin-bottom: 1em;\n       -webkit-border-radius: 4px;\n       border-radius: 4px;\n       border: 1px solid;\n       padding: .5em;\n   }\n   div[ng-controller^=Good] {\n       border-color: #d6e9c6;\n       background-color: #dff0d8;\n       color: #3c763d;\n   }\n   div[ng-controller^=Bad] {\n       border-color: #ebccd1;\n       background-color: #f2dede;\n       color: #a94442;\n       margin-bottom: 0;\n   }\n   </file>\n </example>\n */\nfunction angularInit(element, bootstrap) {\n  var appElement,\n      module,\n      config = {};\n\n  // The element `element` has priority over any other element.\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n\n    if (!appElement && element.hasAttribute && element.hasAttribute(name)) {\n      appElement = element;\n      module = element.getAttribute(name);\n    }\n  });\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n    var candidate;\n\n    if (!appElement && (candidate = element.querySelector('[' + name.replace(':', '\\\\:') + ']'))) {\n      appElement = candidate;\n      module = candidate.getAttribute(name);\n    }\n  });\n  if (appElement) {\n    if (!isAutoBootstrapAllowed) {\n      window.console.error('AngularJS: disabling automatic bootstrap. <script> protocol indicates ' +\n          'an extension, document.location.href does not match.');\n      return;\n    }\n    config.strictDi = getNgAttribute(appElement, 'strict-di') !== null;\n    bootstrap(appElement, module ? [module] : [], config);\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.bootstrap\n * @module ng\n * @description\n * Use this function to manually start up AngularJS application.\n *\n * For more information, see the {@link guide/bootstrap Bootstrap guide}.\n *\n * AngularJS will detect if it has been loaded into the browser more than once and only allow the\n * first loaded script to be bootstrapped and will report a warning to the browser console for\n * each of the subsequent scripts. This prevents strange results in applications, where otherwise\n * multiple instances of AngularJS try to work on the DOM.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Protractor based end-to-end tests cannot use this function to bootstrap manually.\n * They must use {@link ng.directive:ngApp ngApp}.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Do not bootstrap the app on an element with a directive that uses {@link ng.$compile#transclusion transclusion},\n * such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and {@link ngRoute.ngView `ngView`}.\n * Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n * causing animations to stop working and making the injector inaccessible from outside the app.\n * </div>\n *\n * ```html\n * <!doctype html>\n * <html>\n * <body>\n * <div ng-controller=\"WelcomeController\">\n *   {{greeting}}\n * </div>\n *\n * <script src=\"angular.js\"></script>\n * <script>\n *   var app = angular.module('demo', [])\n *   .controller('WelcomeController', function($scope) {\n *       $scope.greeting = 'Welcome!';\n *   });\n *   angular.bootstrap(document, ['demo']);\n * </script>\n * </body>\n * </html>\n * ```\n *\n * @param {DOMElement} element DOM element which is the root of AngularJS application.\n * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n * @param {Object=} config an object for defining configuration options for the application. The\n *     following keys are supported:\n *\n * * `strictDi` - disable automatic function annotation for the application. This is meant to\n *   assist in finding bugs which break minified code. Defaults to `false`.\n *\n * @returns {auto.$injector} Returns the newly created injector for this app.\n */\nfunction bootstrap(element, modules, config) {\n  if (!isObject(config)) config = {};\n  var defaultConfig = {\n    strictDi: false\n  };\n  config = extend(defaultConfig, config);\n  var doBootstrap = function() {\n    element = jqLite(element);\n\n    if (element.injector()) {\n      var tag = (element[0] === window.document) ? 'document' : startingTag(element);\n      // Encode angle brackets to prevent input from being sanitized to empty string #8683.\n      throw ngMinErr(\n          'btstrpd',\n          'App already bootstrapped with this element \\'{0}\\'',\n          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));\n    }\n\n    modules = modules || [];\n    modules.unshift(['$provide', function($provide) {\n      $provide.value('$rootElement', element);\n    }]);\n\n    if (config.debugInfoEnabled) {\n      // Pushing so that this overrides `debugInfoEnabled` setting defined in user's `modules`.\n      modules.push(['$compileProvider', function($compileProvider) {\n        $compileProvider.debugInfoEnabled(true);\n      }]);\n    }\n\n    modules.unshift('ng');\n    var injector = createInjector(modules, config.strictDi);\n    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector',\n       function bootstrapApply(scope, element, compile, injector) {\n        scope.$apply(function() {\n          element.data('$injector', injector);\n          compile(element)(scope);\n        });\n      }]\n    );\n    return injector;\n  };\n\n  var NG_ENABLE_DEBUG_INFO = /^NG_ENABLE_DEBUG_INFO!/;\n  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;\n\n  if (window && NG_ENABLE_DEBUG_INFO.test(window.name)) {\n    config.debugInfoEnabled = true;\n    window.name = window.name.replace(NG_ENABLE_DEBUG_INFO, '');\n  }\n\n  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {\n    return doBootstrap();\n  }\n\n  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');\n  angular.resumeBootstrap = function(extraModules) {\n    forEach(extraModules, function(module) {\n      modules.push(module);\n    });\n    return doBootstrap();\n  };\n\n  if (isFunction(angular.resumeDeferredBootstrap)) {\n    angular.resumeDeferredBootstrap();\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.reloadWithDebugInfo\n * @module ng\n * @description\n * Use this function to reload the current application with debug information turned on.\n * This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.\n *\n * See {@link ng.$compileProvider#debugInfoEnabled} for more.\n */\nfunction reloadWithDebugInfo() {\n  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;\n  window.location.reload();\n}\n\n/**\n * @name angular.getTestability\n * @module ng\n * @description\n * Get the testability service for the instance of AngularJS on the given\n * element.\n * @param {DOMElement} element DOM element which is the root of AngularJS application.\n */\nfunction getTestability(rootElement) {\n  var injector = angular.element(rootElement).injector();\n  if (!injector) {\n    throw ngMinErr('test',\n      'no injector found for element argument to getTestability');\n  }\n  return injector.get('$$testability');\n}\n\nvar SNAKE_CASE_REGEXP = /[A-Z]/g;\nfunction snake_case(name, separator) {\n  separator = separator || '_';\n  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n    return (pos ? separator : '') + letter.toLowerCase();\n  });\n}\n\nvar bindJQueryFired = false;\nfunction bindJQuery() {\n  var originalCleanData;\n\n  if (bindJQueryFired) {\n    return;\n  }\n\n  // bind to jQuery if present;\n  var jqName = jq();\n  jQuery = isUndefined(jqName) ? window.jQuery :   // use jQuery (if present)\n           !jqName             ? undefined     :   // use jqLite\n                                 window[jqName];   // use jQuery specified by `ngJq`\n\n  // Use jQuery if it exists with proper functionality, otherwise default to us.\n  // AngularJS 1.2+ requires jQuery 1.7+ for on()/off() support.\n  // AngularJS 1.3+ technically requires at least jQuery 2.1+ but it may work with older\n  // versions. It will not work for sure with jQuery <1.7, though.\n  if (jQuery && jQuery.fn.on) {\n    jqLite = jQuery;\n    extend(jQuery.fn, {\n      scope: JQLitePrototype.scope,\n      isolateScope: JQLitePrototype.isolateScope,\n      controller: /** @type {?} */ (JQLitePrototype).controller,\n      injector: JQLitePrototype.injector,\n      inheritedData: JQLitePrototype.inheritedData\n    });\n  } else {\n    jqLite = JQLite;\n  }\n\n  // All nodes removed from the DOM via various jqLite/jQuery APIs like .remove()\n  // are passed through jqLite/jQuery.cleanData. Monkey-patch this method to fire\n  // the $destroy event on all removed nodes.\n  originalCleanData = jqLite.cleanData;\n  jqLite.cleanData = function(elems) {\n    var events;\n    for (var i = 0, elem; (elem = elems[i]) != null; i++) {\n      events = (jqLite._data(elem) || {}).events;\n      if (events && events.$destroy) {\n        jqLite(elem).triggerHandler('$destroy');\n      }\n    }\n    originalCleanData(elems);\n  };\n\n  angular.element = jqLite;\n\n  // Prevent double-proxying.\n  bindJQueryFired = true;\n}\n\n/**\n * throw error if the argument is falsy.\n */\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction assertArgFn(arg, name, acceptArrayAnnotation) {\n  if (acceptArrayAnnotation && isArray(arg)) {\n      arg = arg[arg.length - 1];\n  }\n\n  assertArg(isFunction(arg), name, 'not a function, got ' +\n      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));\n  return arg;\n}\n\n/**\n * throw error if the name given is hasOwnProperty\n * @param  {String} name    the name to test\n * @param  {String} context the context in which the name is used, such as module or directive\n */\nfunction assertNotHasOwnProperty(name, context) {\n  if (name === 'hasOwnProperty') {\n    throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n  }\n}\n\n/**\n * Return the value accessible from the object by path. Any undefined traversals are ignored\n * @param {Object} obj starting object\n * @param {String} path path to traverse\n * @param {boolean} [bindFnToScope=true]\n * @returns {Object} value as accessible by path\n */\n//TODO(misko): this function needs to be removed\nfunction getter(obj, path, bindFnToScope) {\n  if (!path) return obj;\n  var keys = path.split('.');\n  var key;\n  var lastInstance = obj;\n  var len = keys.length;\n\n  for (var i = 0; i < len; i++) {\n    key = keys[i];\n    if (obj) {\n      obj = (lastInstance = obj)[key];\n    }\n  }\n  if (!bindFnToScope && isFunction(obj)) {\n    return bind(lastInstance, obj);\n  }\n  return obj;\n}\n\n/**\n * Return the DOM siblings between the first and last node in the given array.\n * @param {Array} array like object\n * @returns {Array} the inputted object or a jqLite collection containing the nodes\n */\nfunction getBlockNodes(nodes) {\n  // TODO(perf): update `nodes` instead of creating a new object?\n  var node = nodes[0];\n  var endNode = nodes[nodes.length - 1];\n  var blockNodes;\n\n  for (var i = 1; node !== endNode && (node = node.nextSibling); i++) {\n    if (blockNodes || nodes[i] !== node) {\n      if (!blockNodes) {\n        blockNodes = jqLite(slice.call(nodes, 0, i));\n      }\n      blockNodes.push(node);\n    }\n  }\n\n  return blockNodes || nodes;\n}\n\n\n/**\n * Creates a new object without a prototype. This object is useful for lookup without having to\n * guard against prototypically inherited properties via hasOwnProperty.\n *\n * Related micro-benchmarks:\n * - http://jsperf.com/object-create2\n * - http://jsperf.com/proto-map-lookup/2\n * - http://jsperf.com/for-in-vs-object-keys2\n *\n * @returns {Object}\n */\nfunction createMap() {\n  return Object.create(null);\n}\n\nfunction stringify(value) {\n  if (value == null) { // null || undefined\n    return '';\n  }\n  switch (typeof value) {\n    case 'string':\n      break;\n    case 'number':\n      value = '' + value;\n      break;\n    default:\n      if (hasCustomToString(value) && !isArray(value) && !isDate(value)) {\n        value = value.toString();\n      } else {\n        value = toJson(value);\n      }\n  }\n\n  return value;\n}\n\nvar NODE_TYPE_ELEMENT = 1;\nvar NODE_TYPE_ATTRIBUTE = 2;\nvar NODE_TYPE_TEXT = 3;\nvar NODE_TYPE_COMMENT = 8;\nvar NODE_TYPE_DOCUMENT = 9;\nvar NODE_TYPE_DOCUMENT_FRAGMENT = 11;\n\n/**\n * @ngdoc type\n * @name angular.Module\n * @module ng\n * @description\n *\n * Interface for configuring AngularJS {@link angular.module modules}.\n */\n\nfunction setupModuleLoader(window) {\n\n  var $injectorMinErr = minErr('$injector');\n  var ngMinErr = minErr('ng');\n\n  function ensure(obj, name, factory) {\n    return obj[name] || (obj[name] = factory());\n  }\n\n  var angular = ensure(window, 'angular', Object);\n\n  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap\n  angular.$$minErr = angular.$$minErr || minErr;\n\n  return ensure(angular, 'module', function() {\n    /** @type {Object.<string, angular.Module>} */\n    var modules = {};\n\n    /**\n     * @ngdoc function\n     * @name angular.module\n     * @module ng\n     * @description\n     *\n     * The `angular.module` is a global place for creating, registering and retrieving AngularJS\n     * modules.\n     * All modules (AngularJS core or 3rd party) that should be available to an application must be\n     * registered using this mechanism.\n     *\n     * Passing one argument retrieves an existing {@link angular.Module},\n     * whereas passing more than one argument creates a new {@link angular.Module}\n     *\n     *\n     * # Module\n     *\n     * A module is a collection of services, directives, controllers, filters, and configuration information.\n     * `angular.module` is used to configure the {@link auto.$injector $injector}.\n     *\n     * ```js\n     * // Create a new module\n     * var myModule = angular.module('myModule', []);\n     *\n     * // register a new service\n     * myModule.value('appName', 'MyCoolApp');\n     *\n     * // configure existing services inside initialization blocks.\n     * myModule.config(['$locationProvider', function($locationProvider) {\n     *   // Configure existing providers\n     *   $locationProvider.hashPrefix('!');\n     * }]);\n     * ```\n     *\n     * Then you can create an injector and load your modules like this:\n     *\n     * ```js\n     * var injector = angular.injector(['ng', 'myModule'])\n     * ```\n     *\n     * However it's more likely that you'll just use\n     * {@link ng.directive:ngApp ngApp} or\n     * {@link angular.bootstrap} to simplify this process for you.\n     *\n     * @param {!string} name The name of the module to create or retrieve.\n     * @param {!Array.<string>=} requires If specified then new module is being created. If\n     *        unspecified then the module is being retrieved for further configuration.\n     * @param {Function=} configFn Optional configuration function for the module. Same as\n     *        {@link angular.Module#config Module#config()}.\n     * @returns {angular.Module} new module with the {@link angular.Module} api.\n     */\n    return function module(name, requires, configFn) {\n\n      var info = {};\n\n      var assertNotHasOwnProperty = function(name, context) {\n        if (name === 'hasOwnProperty') {\n          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n        }\n      };\n\n      assertNotHasOwnProperty(name, 'module');\n      if (requires && modules.hasOwnProperty(name)) {\n        modules[name] = null;\n      }\n      return ensure(modules, name, function() {\n        if (!requires) {\n          throw $injectorMinErr('nomod', 'Module \\'{0}\\' is not available! You either misspelled ' +\n             'the module name or forgot to load it. If registering a module ensure that you ' +\n             'specify the dependencies as the second argument.', name);\n        }\n\n        /** @type {!Array.<Array.<*>>} */\n        var invokeQueue = [];\n\n        /** @type {!Array.<Function>} */\n        var configBlocks = [];\n\n        /** @type {!Array.<Function>} */\n        var runBlocks = [];\n\n        var config = invokeLater('$injector', 'invoke', 'push', configBlocks);\n\n        /** @type {angular.Module} */\n        var moduleInstance = {\n          // Private state\n          _invokeQueue: invokeQueue,\n          _configBlocks: configBlocks,\n          _runBlocks: runBlocks,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#info\n           * @module ng\n           *\n           * @param {Object=} info Information about the module\n           * @returns {Object|Module} The current info object for this module if called as a getter,\n           *                          or `this` if called as a setter.\n           *\n           * @description\n           * Read and write custom information about this module.\n           * For example you could put the version of the module in here.\n           *\n           * ```js\n           * angular.module('myModule', []).info({ version: '1.0.0' });\n           * ```\n           *\n           * The version could then be read back out by accessing the module elsewhere:\n           *\n           * ```\n           * var version = angular.module('myModule').info().version;\n           * ```\n           *\n           * You can also retrieve this information during runtime via the\n           * {@link $injector#modules `$injector.modules`} property:\n           *\n           * ```js\n           * var version = $injector.modules['myModule'].info().version;\n           * ```\n           */\n          info: function(value) {\n            if (isDefined(value)) {\n              if (!isObject(value)) throw ngMinErr('aobj', 'Argument \\'{0}\\' must be an object', 'value');\n              info = value;\n              return this;\n            }\n            return info;\n          },\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#requires\n           * @module ng\n           *\n           * @description\n           * Holds the list of modules which the injector will load before the current module is\n           * loaded.\n           */\n          requires: requires,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#name\n           * @module ng\n           *\n           * @description\n           * Name of the module.\n           */\n          name: name,\n\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#provider\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerType Construction function for creating new instance of the\n           *                                service.\n           * @description\n           * See {@link auto.$provide#provider $provide.provider()}.\n           */\n          provider: invokeLaterAndSetModuleName('$provide', 'provider'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#factory\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerFunction Function for creating new instance of the service.\n           * @description\n           * See {@link auto.$provide#factory $provide.factory()}.\n           */\n          factory: invokeLaterAndSetModuleName('$provide', 'factory'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#service\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} constructor A constructor function that will be instantiated.\n           * @description\n           * See {@link auto.$provide#service $provide.service()}.\n           */\n          service: invokeLaterAndSetModuleName('$provide', 'service'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#value\n           * @module ng\n           * @param {string} name service name\n           * @param {*} object Service instance object.\n           * @description\n           * See {@link auto.$provide#value $provide.value()}.\n           */\n          value: invokeLater('$provide', 'value'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#constant\n           * @module ng\n           * @param {string} name constant name\n           * @param {*} object Constant value.\n           * @description\n           * Because the constants are fixed, they get applied before other provide methods.\n           * See {@link auto.$provide#constant $provide.constant()}.\n           */\n          constant: invokeLater('$provide', 'constant', 'unshift'),\n\n           /**\n           * @ngdoc method\n           * @name angular.Module#decorator\n           * @module ng\n           * @param {string} name The name of the service to decorate.\n           * @param {Function} decorFn This function will be invoked when the service needs to be\n           *                           instantiated and should return the decorated service instance.\n           * @description\n           * See {@link auto.$provide#decorator $provide.decorator()}.\n           */\n          decorator: invokeLaterAndSetModuleName('$provide', 'decorator', configBlocks),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#animation\n           * @module ng\n           * @param {string} name animation name\n           * @param {Function} animationFactory Factory function for creating new instance of an\n           *                                    animation.\n           * @description\n           *\n           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.\n           *\n           *\n           * Defines an animation hook that can be later used with\n           * {@link $animate $animate} service and directives that use this service.\n           *\n           * ```js\n           * module.animation('.animation-name', function($inject1, $inject2) {\n           *   return {\n           *     eventName : function(element, done) {\n           *       //code to run the animation\n           *       //once complete, then run done()\n           *       return function cancellationFunction(element) {\n           *         //code to cancel the animation\n           *       }\n           *     }\n           *   }\n           * })\n           * ```\n           *\n           * See {@link ng.$animateProvider#register $animateProvider.register()} and\n           * {@link ngAnimate ngAnimate module} for more information.\n           */\n          animation: invokeLaterAndSetModuleName('$animateProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#filter\n           * @module ng\n           * @param {string} name Filter name - this must be a valid AngularJS expression identifier\n           * @param {Function} filterFactory Factory function for creating new instance of filter.\n           * @description\n           * See {@link ng.$filterProvider#register $filterProvider.register()}.\n           *\n           * <div class=\"alert alert-warning\">\n           * **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n           * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n           * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n           * (`myapp_subsection_filterx`).\n           * </div>\n           */\n          filter: invokeLaterAndSetModuleName('$filterProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#controller\n           * @module ng\n           * @param {string|Object} name Controller name, or an object map of controllers where the\n           *    keys are the names and the values are the constructors.\n           * @param {Function} constructor Controller constructor function.\n           * @description\n           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.\n           */\n          controller: invokeLaterAndSetModuleName('$controllerProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#directive\n           * @module ng\n           * @param {string|Object} name Directive name, or an object map of directives where the\n           *    keys are the names and the values are the factories.\n           * @param {Function} directiveFactory Factory function for creating new instance of\n           * directives.\n           * @description\n           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.\n           */\n          directive: invokeLaterAndSetModuleName('$compileProvider', 'directive'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#component\n           * @module ng\n           * @param {string|Object} name Name of the component in camelCase (i.e. `myComp` which will match `<my-comp>`),\n           *    or an object map of components where the keys are the names and the values are the component definition objects.\n           * @param {Object} options Component definition object (a simplified\n           *    {@link ng.$compile#directive-definition-object directive definition object})\n           *\n           * @description\n           * See {@link ng.$compileProvider#component $compileProvider.component()}.\n           */\n          component: invokeLaterAndSetModuleName('$compileProvider', 'component'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#config\n           * @module ng\n           * @param {Function} configFn Execute this function on module load. Useful for service\n           *    configuration.\n           * @description\n           * Use this method to configure services by injecting their\n           * {@link angular.Module#provider `providers`}, e.g. for adding routes to the\n           * {@link ngRoute.$routeProvider $routeProvider}.\n           *\n           * Note that you can only inject {@link angular.Module#provider `providers`} and\n           * {@link angular.Module#constant `constants`} into this function.\n           *\n           * For more about how to configure services, see\n           * {@link providers#provider-recipe Provider Recipe}.\n           */\n          config: config,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#run\n           * @module ng\n           * @param {Function} initializationFn Execute this function after injector creation.\n           *    Useful for application initialization.\n           * @description\n           * Use this method to register work which should be performed when the injector is done\n           * loading all modules.\n           */\n          run: function(block) {\n            runBlocks.push(block);\n            return this;\n          }\n        };\n\n        if (configFn) {\n          config(configFn);\n        }\n\n        return moduleInstance;\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @param {String=} insertMethod\n         * @returns {angular.Module}\n         */\n        function invokeLater(provider, method, insertMethod, queue) {\n          if (!queue) queue = invokeQueue;\n          return function() {\n            queue[insertMethod || 'push']([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @returns {angular.Module}\n         */\n        function invokeLaterAndSetModuleName(provider, method, queue) {\n          if (!queue) queue = invokeQueue;\n          return function(recipeName, factoryFunction) {\n            if (factoryFunction && isFunction(factoryFunction)) factoryFunction.$$moduleName = name;\n            queue.push([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n      });\n    };\n  });\n\n}\n\n/* global shallowCopy: true */\n\n/**\n * Creates a shallow copy of an object, an array or a primitive.\n *\n * Assumes that there are no proto properties for objects.\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for (var i = 0, ii = src.length; i < ii; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n/* exported toDebugString */\n\nfunction serializeObject(obj, maxDepth) {\n  var seen = [];\n\n  // There is no direct way to stringify object until reaching a specific depth\n  // and a very deep object can cause a performance issue, so we copy the object\n  // based on this specific depth and then stringify it.\n  if (isValidObjectMaxDepth(maxDepth)) {\n    // This file is also included in `angular-loader`, so `copy()` might not always be available in\n    // the closure. Therefore, it is lazily retrieved as `angular.copy()` when needed.\n    obj = angular.copy(obj, null, maxDepth);\n  }\n  return JSON.stringify(obj, function(key, val) {\n    val = toJsonReplacer(key, val);\n    if (isObject(val)) {\n\n      if (seen.indexOf(val) >= 0) return '...';\n\n      seen.push(val);\n    }\n    return val;\n  });\n}\n\nfunction toDebugString(obj, maxDepth) {\n  if (typeof obj === 'function') {\n    return obj.toString().replace(/ \\{[\\s\\S]*$/, '');\n  } else if (isUndefined(obj)) {\n    return 'undefined';\n  } else if (typeof obj !== 'string') {\n    return serializeObject(obj, maxDepth);\n  }\n  return obj;\n}\n\n/* global angularModule: true,\n  version: true,\n\n  $CompileProvider,\n\n  htmlAnchorDirective,\n  inputDirective,\n  hiddenInputBrowserCacheDirective,\n  formDirective,\n  scriptDirective,\n  selectDirective,\n  optionDirective,\n  ngBindDirective,\n  ngBindHtmlDirective,\n  ngBindTemplateDirective,\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective,\n  ngCloakDirective,\n  ngControllerDirective,\n  ngFormDirective,\n  ngHideDirective,\n  ngIfDirective,\n  ngIncludeDirective,\n  ngIncludeFillContentDirective,\n  ngInitDirective,\n  ngNonBindableDirective,\n  ngPluralizeDirective,\n  ngRefDirective,\n  ngRepeatDirective,\n  ngShowDirective,\n  ngStyleDirective,\n  ngSwitchDirective,\n  ngSwitchWhenDirective,\n  ngSwitchDefaultDirective,\n  ngOptionsDirective,\n  ngTranscludeDirective,\n  ngModelDirective,\n  ngListDirective,\n  ngChangeDirective,\n  patternDirective,\n  patternDirective,\n  requiredDirective,\n  requiredDirective,\n  minlengthDirective,\n  minlengthDirective,\n  maxlengthDirective,\n  maxlengthDirective,\n  ngValueDirective,\n  ngModelOptionsDirective,\n  ngAttributeAliasDirectives,\n  ngEventDirectives,\n\n  $AnchorScrollProvider,\n  $AnimateProvider,\n  $CoreAnimateCssProvider,\n  $$CoreAnimateJsProvider,\n  $$CoreAnimateQueueProvider,\n  $$AnimateRunnerFactoryProvider,\n  $$AnimateAsyncRunFactoryProvider,\n  $BrowserProvider,\n  $CacheFactoryProvider,\n  $ControllerProvider,\n  $DateProvider,\n  $DocumentProvider,\n  $$IsDocumentHiddenProvider,\n  $ExceptionHandlerProvider,\n  $FilterProvider,\n  $$ForceReflowProvider,\n  $InterpolateProvider,\n  $$IntervalFactoryProvider,\n  $IntervalProvider,\n  $HttpProvider,\n  $HttpParamSerializerProvider,\n  $HttpParamSerializerJQLikeProvider,\n  $HttpBackendProvider,\n  $xhrFactoryProvider,\n  $jsonpCallbacksProvider,\n  $LocationProvider,\n  $LogProvider,\n  $$MapProvider,\n  $ParseProvider,\n  $RootScopeProvider,\n  $QProvider,\n  $$QProvider,\n  $$SanitizeUriProvider,\n  $SceProvider,\n  $SceDelegateProvider,\n  $SnifferProvider,\n  $$TaskTrackerFactoryProvider,\n  $TemplateCacheProvider,\n  $TemplateRequestProvider,\n  $$TestabilityProvider,\n  $TimeoutProvider,\n  $$RAFProvider,\n  $WindowProvider,\n  $$jqLiteProvider,\n  $$CookieReaderProvider\n*/\n\n\n/**\n * @ngdoc object\n * @name angular.version\n * @module ng\n * @description\n * An object that contains information about the current AngularJS version.\n *\n * This object has the following properties:\n *\n * - `full` – `{string}` – Full version string, such as \"0.9.18\".\n * - `major` – `{number}` – Major version number, such as \"0\".\n * - `minor` – `{number}` – Minor version number, such as \"9\".\n * - `dot` – `{number}` – Dot version number, such as \"18\".\n * - `codeName` – `{string}` – Code name of the release, such as \"jiggling-armfat\".\n */\nvar version = {\n  // These placeholder strings will be replaced by grunt's `build` task.\n  // They need to be double- or single-quoted.\n  full: '1.7.9',\n  major: 1,\n  minor: 7,\n  dot: 9,\n  codeName: 'pollution-eradication'\n};\n\n\nfunction publishExternalAPI(angular) {\n  extend(angular, {\n    'errorHandlingConfig': errorHandlingConfig,\n    'bootstrap': bootstrap,\n    'copy': copy,\n    'extend': extend,\n    'merge': merge,\n    'equals': equals,\n    'element': jqLite,\n    'forEach': forEach,\n    'injector': createInjector,\n    'noop': noop,\n    'bind': bind,\n    'toJson': toJson,\n    'fromJson': fromJson,\n    'identity': identity,\n    'isUndefined': isUndefined,\n    'isDefined': isDefined,\n    'isString': isString,\n    'isFunction': isFunction,\n    'isObject': isObject,\n    'isNumber': isNumber,\n    'isElement': isElement,\n    'isArray': isArray,\n    'version': version,\n    'isDate': isDate,\n    'callbacks': {$$counter: 0},\n    'getTestability': getTestability,\n    'reloadWithDebugInfo': reloadWithDebugInfo,\n    '$$minErr': minErr,\n    '$$csp': csp,\n    '$$encodeUriSegment': encodeUriSegment,\n    '$$encodeUriQuery': encodeUriQuery,\n    '$$lowercase': lowercase,\n    '$$stringify': stringify,\n    '$$uppercase': uppercase\n  });\n\n  angularModule = setupModuleLoader(window);\n\n  angularModule('ng', ['ngLocale'], ['$provide',\n    function ngModule($provide) {\n      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.\n      $provide.provider({\n        $$sanitizeUri: $$SanitizeUriProvider\n      });\n      $provide.provider('$compile', $CompileProvider).\n        directive({\n            a: htmlAnchorDirective,\n            input: inputDirective,\n            textarea: inputDirective,\n            form: formDirective,\n            script: scriptDirective,\n            select: selectDirective,\n            option: optionDirective,\n            ngBind: ngBindDirective,\n            ngBindHtml: ngBindHtmlDirective,\n            ngBindTemplate: ngBindTemplateDirective,\n            ngClass: ngClassDirective,\n            ngClassEven: ngClassEvenDirective,\n            ngClassOdd: ngClassOddDirective,\n            ngCloak: ngCloakDirective,\n            ngController: ngControllerDirective,\n            ngForm: ngFormDirective,\n            ngHide: ngHideDirective,\n            ngIf: ngIfDirective,\n            ngInclude: ngIncludeDirective,\n            ngInit: ngInitDirective,\n            ngNonBindable: ngNonBindableDirective,\n            ngPluralize: ngPluralizeDirective,\n            ngRef: ngRefDirective,\n            ngRepeat: ngRepeatDirective,\n            ngShow: ngShowDirective,\n            ngStyle: ngStyleDirective,\n            ngSwitch: ngSwitchDirective,\n            ngSwitchWhen: ngSwitchWhenDirective,\n            ngSwitchDefault: ngSwitchDefaultDirective,\n            ngOptions: ngOptionsDirective,\n            ngTransclude: ngTranscludeDirective,\n            ngModel: ngModelDirective,\n            ngList: ngListDirective,\n            ngChange: ngChangeDirective,\n            pattern: patternDirective,\n            ngPattern: patternDirective,\n            required: requiredDirective,\n            ngRequired: requiredDirective,\n            minlength: minlengthDirective,\n            ngMinlength: minlengthDirective,\n            maxlength: maxlengthDirective,\n            ngMaxlength: maxlengthDirective,\n            ngValue: ngValueDirective,\n            ngModelOptions: ngModelOptionsDirective\n        }).\n        directive({\n          ngInclude: ngIncludeFillContentDirective,\n          input: hiddenInputBrowserCacheDirective\n        }).\n        directive(ngAttributeAliasDirectives).\n        directive(ngEventDirectives);\n      $provide.provider({\n        $anchorScroll: $AnchorScrollProvider,\n        $animate: $AnimateProvider,\n        $animateCss: $CoreAnimateCssProvider,\n        $$animateJs: $$CoreAnimateJsProvider,\n        $$animateQueue: $$CoreAnimateQueueProvider,\n        $$AnimateRunner: $$AnimateRunnerFactoryProvider,\n        $$animateAsyncRun: $$AnimateAsyncRunFactoryProvider,\n        $browser: $BrowserProvider,\n        $cacheFactory: $CacheFactoryProvider,\n        $controller: $ControllerProvider,\n        $document: $DocumentProvider,\n        $$isDocumentHidden: $$IsDocumentHiddenProvider,\n        $exceptionHandler: $ExceptionHandlerProvider,\n        $filter: $FilterProvider,\n        $$forceReflow: $$ForceReflowProvider,\n        $interpolate: $InterpolateProvider,\n        $interval: $IntervalProvider,\n        $$intervalFactory: $$IntervalFactoryProvider,\n        $http: $HttpProvider,\n        $httpParamSerializer: $HttpParamSerializerProvider,\n        $httpParamSerializerJQLike: $HttpParamSerializerJQLikeProvider,\n        $httpBackend: $HttpBackendProvider,\n        $xhrFactory: $xhrFactoryProvider,\n        $jsonpCallbacks: $jsonpCallbacksProvider,\n        $location: $LocationProvider,\n        $log: $LogProvider,\n        $parse: $ParseProvider,\n        $rootScope: $RootScopeProvider,\n        $q: $QProvider,\n        $$q: $$QProvider,\n        $sce: $SceProvider,\n        $sceDelegate: $SceDelegateProvider,\n        $sniffer: $SnifferProvider,\n        $$taskTrackerFactory: $$TaskTrackerFactoryProvider,\n        $templateCache: $TemplateCacheProvider,\n        $templateRequest: $TemplateRequestProvider,\n        $$testability: $$TestabilityProvider,\n        $timeout: $TimeoutProvider,\n        $window: $WindowProvider,\n        $$rAF: $$RAFProvider,\n        $$jqLite: $$jqLiteProvider,\n        $$Map: $$MapProvider,\n        $$cookieReader: $$CookieReaderProvider\n      });\n    }\n  ])\n  .info({ angularVersion: '1.7.9' });\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* global\n  JQLitePrototype: true,\n  BOOLEAN_ATTR: true,\n  ALIASED_ATTR: true\n*/\n\n//////////////////////////////////\n//JQLite\n//////////////////////////////////\n\n/**\n * @ngdoc function\n * @name angular.element\n * @module ng\n * @kind function\n *\n * @description\n * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.\n *\n * If jQuery is available, `angular.element` is an alias for the\n * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`\n * delegates to AngularJS's built-in subset of jQuery, called \"jQuery lite\" or **jqLite**.\n *\n * jqLite is a tiny, API-compatible subset of jQuery that allows\n * AngularJS to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most\n * commonly needed functionality with the goal of having a very small footprint.\n *\n * To use `jQuery`, simply ensure it is loaded before the `angular.js` file. You can also use the\n * {@link ngJq `ngJq`} directive to specify that jqlite should be used over jQuery, or to use a\n * specific version of jQuery if multiple versions exist on the page.\n *\n * <div class=\"alert alert-info\">**Note:** All element references in AngularJS are always wrapped with jQuery or\n * jqLite (such as the element argument in a directive's compile / link function). They are never raw DOM references.</div>\n *\n * <div class=\"alert alert-warning\">**Note:** Keep in mind that this function will not find elements\n * by tag name / CSS selector. For lookups by tag name, try instead `angular.element(document).find(...)`\n * or `$document.find()`, or use the standard DOM APIs, e.g. `document.querySelectorAll()`.</div>\n *\n * ## AngularJS's jqLite\n * jqLite provides only the following jQuery methods:\n *\n * - [`addClass()`](http://api.jquery.com/addClass/) - Does not support a function as first argument\n * - [`after()`](http://api.jquery.com/after/)\n * - [`append()`](http://api.jquery.com/append/) - Contrary to jQuery, this doesn't clone elements\n *   so will not work correctly when invoked on a jqLite object containing more than one DOM node\n * - [`attr()`](http://api.jquery.com/attr/) - Does not support functions as parameters\n * - [`bind()`](http://api.jquery.com/bind/) (_deprecated_, use [`on()`](http://api.jquery.com/on/)) - Does not support namespaces, selectors or eventData\n * - [`children()`](http://api.jquery.com/children/) - Does not support selectors\n * - [`clone()`](http://api.jquery.com/clone/)\n * - [`contents()`](http://api.jquery.com/contents/)\n * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`.\n *   As a setter, does not convert numbers to strings or append 'px', and also does not have automatic property prefixing.\n * - [`data()`](http://api.jquery.com/data/)\n * - [`detach()`](http://api.jquery.com/detach/)\n * - [`empty()`](http://api.jquery.com/empty/)\n * - [`eq()`](http://api.jquery.com/eq/)\n * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name\n * - [`hasClass()`](http://api.jquery.com/hasClass/)\n * - [`html()`](http://api.jquery.com/html/)\n * - [`next()`](http://api.jquery.com/next/) - Does not support selectors\n * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData\n * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces, selectors or event object as parameter\n * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors\n * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors\n * - [`prepend()`](http://api.jquery.com/prepend/)\n * - [`prop()`](http://api.jquery.com/prop/)\n * - [`ready()`](http://api.jquery.com/ready/) (_deprecated_, use `angular.element(callback)` instead of `angular.element(document).ready(callback)`)\n * - [`remove()`](http://api.jquery.com/remove/)\n * - [`removeAttr()`](http://api.jquery.com/removeAttr/) - Does not support multiple attributes\n * - [`removeClass()`](http://api.jquery.com/removeClass/) - Does not support a function as first argument\n * - [`removeData()`](http://api.jquery.com/removeData/)\n * - [`replaceWith()`](http://api.jquery.com/replaceWith/)\n * - [`text()`](http://api.jquery.com/text/)\n * - [`toggleClass()`](http://api.jquery.com/toggleClass/) - Does not support a function as first argument\n * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers\n * - [`unbind()`](http://api.jquery.com/unbind/) (_deprecated_, use [`off()`](http://api.jquery.com/off/)) - Does not support namespaces or event object as parameter\n * - [`val()`](http://api.jquery.com/val/)\n * - [`wrap()`](http://api.jquery.com/wrap/)\n *\n * ## jQuery/jqLite Extras\n * AngularJS also provides the following additional methods and events to both jQuery and jqLite:\n *\n * ### Events\n * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event\n *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM\n *    element before it is removed.\n *\n * ### Methods\n * - `controller(name)` - retrieves the controller of the current element or its parent. By default\n *   retrieves controller associated with the `ngController` directive. If `name` is provided as\n *   camelCase directive name, then the controller for this directive will be retrieved (e.g.\n *   `'ngModel'`).\n * - `injector()` - retrieves the injector of the current element or its parent.\n * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current\n *   element or its parent. Requires {@link guide/production#disabling-debug-data Debug Data} to\n *   be enabled.\n * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the\n *   current element. This getter should be used only on elements that contain a directive which starts a new isolate\n *   scope. Calling `scope()` on this element always returns the original non-isolate scope.\n *   Requires {@link guide/production#disabling-debug-data Debug Data} to be enabled.\n * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top\n *   parent element is reached.\n *\n * @knownIssue You cannot spy on `angular.element` if you are using Jasmine version 1.x. See\n * https://github.com/angular/angular.js/issues/14251 for more information.\n *\n * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.\n * @returns {Object} jQuery object.\n */\n\nJQLite.expando = 'ng339';\n\nvar jqCache = JQLite.cache = {},\n    jqId = 1;\n\n/*\n * !!! This is an undocumented \"private\" function !!!\n */\nJQLite._data = function(node) {\n  //jQuery always returns an object on cache miss\n  return this.cache[node[this.expando]] || {};\n};\n\nfunction jqNextId() { return ++jqId; }\n\n\nvar DASH_LOWERCASE_REGEXP = /-([a-z])/g;\nvar MS_HACK_REGEXP = /^-ms-/;\nvar MOUSE_EVENT_MAP = { mouseleave: 'mouseout', mouseenter: 'mouseover' };\nvar jqLiteMinErr = minErr('jqLite');\n\n/**\n * Converts kebab-case to camelCase.\n * There is also a special case for the ms prefix starting with a lowercase letter.\n * @param name Name to normalize\n */\nfunction cssKebabToCamel(name) {\n    return kebabToCamel(name.replace(MS_HACK_REGEXP, 'ms-'));\n}\n\nfunction fnCamelCaseReplace(all, letter) {\n  return letter.toUpperCase();\n}\n\n/**\n * Converts kebab-case to camelCase.\n * @param name Name to normalize\n */\nfunction kebabToCamel(name) {\n  return name\n    .replace(DASH_LOWERCASE_REGEXP, fnCamelCaseReplace);\n}\n\nvar SINGLE_TAG_REGEXP = /^<([\\w-]+)\\s*\\/?>(?:<\\/\\1>|)$/;\nvar HTML_REGEXP = /<|&#?\\w+;/;\nvar TAG_NAME_REGEXP = /<([\\w:-]+)/;\nvar XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:-]+)[^>]*)\\/>/gi;\n\nvar wrapMap = {\n  'option': [1, '<select multiple=\"multiple\">', '</select>'],\n\n  'thead': [1, '<table>', '</table>'],\n  'col': [2, '<table><colgroup>', '</colgroup></table>'],\n  'tr': [2, '<table><tbody>', '</tbody></table>'],\n  'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],\n  '_default': [0, '', '']\n};\n\nwrapMap.optgroup = wrapMap.option;\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\n\nfunction jqLiteIsTextNode(html) {\n  return !HTML_REGEXP.test(html);\n}\n\nfunction jqLiteAcceptsData(node) {\n  // The window object can accept data but has no nodeType\n  // Otherwise we are only interested in elements (1) and documents (9)\n  var nodeType = node.nodeType;\n  return nodeType === NODE_TYPE_ELEMENT || !nodeType || nodeType === NODE_TYPE_DOCUMENT;\n}\n\nfunction jqLiteHasData(node) {\n  for (var key in jqCache[node.ng339]) {\n    return true;\n  }\n  return false;\n}\n\nfunction jqLiteBuildFragment(html, context) {\n  var tmp, tag, wrap,\n      fragment = context.createDocumentFragment(),\n      nodes = [], i;\n\n  if (jqLiteIsTextNode(html)) {\n    // Convert non-html into a text node\n    nodes.push(context.createTextNode(html));\n  } else {\n    // Convert html into DOM nodes\n    tmp = fragment.appendChild(context.createElement('div'));\n    tag = (TAG_NAME_REGEXP.exec(html) || ['', ''])[1].toLowerCase();\n    wrap = wrapMap[tag] || wrapMap._default;\n    tmp.innerHTML = wrap[1] + html.replace(XHTML_TAG_REGEXP, '<$1></$2>') + wrap[2];\n\n    // Descend through wrappers to the right content\n    i = wrap[0];\n    while (i--) {\n      tmp = tmp.lastChild;\n    }\n\n    nodes = concat(nodes, tmp.childNodes);\n\n    tmp = fragment.firstChild;\n    tmp.textContent = '';\n  }\n\n  // Remove wrapper from fragment\n  fragment.textContent = '';\n  fragment.innerHTML = ''; // Clear inner HTML\n  forEach(nodes, function(node) {\n    fragment.appendChild(node);\n  });\n\n  return fragment;\n}\n\nfunction jqLiteParseHTML(html, context) {\n  context = context || window.document;\n  var parsed;\n\n  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {\n    return [context.createElement(parsed[1])];\n  }\n\n  if ((parsed = jqLiteBuildFragment(html, context))) {\n    return parsed.childNodes;\n  }\n\n  return [];\n}\n\nfunction jqLiteWrapNode(node, wrapper) {\n  var parent = node.parentNode;\n\n  if (parent) {\n    parent.replaceChild(wrapper, node);\n  }\n\n  wrapper.appendChild(node);\n}\n\n\n// IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\nvar jqLiteContains = window.Node.prototype.contains || /** @this */ function(arg) {\n  // eslint-disable-next-line no-bitwise\n  return !!(this.compareDocumentPosition(arg) & 16);\n};\n\n/////////////////////////////////////////////\nfunction JQLite(element) {\n  if (element instanceof JQLite) {\n    return element;\n  }\n\n  var argIsString;\n\n  if (isString(element)) {\n    element = trim(element);\n    argIsString = true;\n  }\n  if (!(this instanceof JQLite)) {\n    if (argIsString && element.charAt(0) !== '<') {\n      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');\n    }\n    return new JQLite(element);\n  }\n\n  if (argIsString) {\n    jqLiteAddNodes(this, jqLiteParseHTML(element));\n  } else if (isFunction(element)) {\n    jqLiteReady(element);\n  } else {\n    jqLiteAddNodes(this, element);\n  }\n}\n\nfunction jqLiteClone(element) {\n  return element.cloneNode(true);\n}\n\nfunction jqLiteDealoc(element, onlyDescendants) {\n  if (!onlyDescendants && jqLiteAcceptsData(element)) jqLite.cleanData([element]);\n\n  if (element.querySelectorAll) {\n    jqLite.cleanData(element.querySelectorAll('*'));\n  }\n}\n\nfunction isEmptyObject(obj) {\n  var name;\n\n  for (name in obj) {\n    return false;\n  }\n  return true;\n}\n\nfunction removeIfEmptyData(element) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  var events = expandoStore && expandoStore.events;\n  var data = expandoStore && expandoStore.data;\n\n  if ((!data || isEmptyObject(data)) && (!events || isEmptyObject(events))) {\n    delete jqCache[expandoId];\n    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it\n  }\n}\n\nfunction jqLiteOff(element, type, fn, unsupported) {\n  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');\n\n  var expandoStore = jqLiteExpandoStore(element);\n  var events = expandoStore && expandoStore.events;\n  var handle = expandoStore && expandoStore.handle;\n\n  if (!handle) return; //no listeners registered\n\n  if (!type) {\n    for (type in events) {\n      if (type !== '$destroy') {\n        element.removeEventListener(type, handle);\n      }\n      delete events[type];\n    }\n  } else {\n\n    var removeHandler = function(type) {\n      var listenerFns = events[type];\n      if (isDefined(fn)) {\n        arrayRemove(listenerFns || [], fn);\n      }\n      if (!(isDefined(fn) && listenerFns && listenerFns.length > 0)) {\n        element.removeEventListener(type, handle);\n        delete events[type];\n      }\n    };\n\n    forEach(type.split(' '), function(type) {\n      removeHandler(type);\n      if (MOUSE_EVENT_MAP[type]) {\n        removeHandler(MOUSE_EVENT_MAP[type]);\n      }\n    });\n  }\n\n  removeIfEmptyData(element);\n}\n\nfunction jqLiteRemoveData(element, name) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  if (expandoStore) {\n    if (name) {\n      delete expandoStore.data[name];\n    } else {\n      expandoStore.data = {};\n    }\n\n    removeIfEmptyData(element);\n  }\n}\n\n\nfunction jqLiteExpandoStore(element, createIfNecessary) {\n  var expandoId = element.ng339,\n      expandoStore = expandoId && jqCache[expandoId];\n\n  if (createIfNecessary && !expandoStore) {\n    element.ng339 = expandoId = jqNextId();\n    expandoStore = jqCache[expandoId] = {events: {}, data: {}, handle: undefined};\n  }\n\n  return expandoStore;\n}\n\n\nfunction jqLiteData(element, key, value) {\n  if (jqLiteAcceptsData(element)) {\n    var prop;\n\n    var isSimpleSetter = isDefined(value);\n    var isSimpleGetter = !isSimpleSetter && key && !isObject(key);\n    var massGetter = !key;\n    var expandoStore = jqLiteExpandoStore(element, !isSimpleGetter);\n    var data = expandoStore && expandoStore.data;\n\n    if (isSimpleSetter) { // data('key', value)\n      data[kebabToCamel(key)] = value;\n    } else {\n      if (massGetter) {  // data()\n        return data;\n      } else {\n        if (isSimpleGetter) { // data('key')\n          // don't force creation of expandoStore if it doesn't exist yet\n          return data && data[kebabToCamel(key)];\n        } else { // mass-setter: data({key1: val1, key2: val2})\n          for (prop in key) {\n            data[kebabToCamel(prop)] = key[prop];\n          }\n        }\n      }\n    }\n  }\n}\n\nfunction jqLiteHasClass(element, selector) {\n  if (!element.getAttribute) return false;\n  return ((' ' + (element.getAttribute('class') || '') + ' ').replace(/[\\n\\t]/g, ' ').\n      indexOf(' ' + selector + ' ') > -1);\n}\n\nfunction jqLiteRemoveClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, ' ');\n    var newClasses = existingClasses;\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      newClasses = newClasses.replace(' ' + cssClass + ' ', ' ');\n    });\n\n    if (newClasses !== existingClasses) {\n      element.setAttribute('class', trim(newClasses));\n    }\n  }\n}\n\nfunction jqLiteAddClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, ' ');\n    var newClasses = existingClasses;\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      if (newClasses.indexOf(' ' + cssClass + ' ') === -1) {\n        newClasses += cssClass + ' ';\n      }\n    });\n\n    if (newClasses !== existingClasses) {\n      element.setAttribute('class', trim(newClasses));\n    }\n  }\n}\n\n\nfunction jqLiteAddNodes(root, elements) {\n  // THIS CODE IS VERY HOT. Don't make changes without benchmarking.\n\n  if (elements) {\n\n    // if a Node (the most common case)\n    if (elements.nodeType) {\n      root[root.length++] = elements;\n    } else {\n      var length = elements.length;\n\n      // if an Array or NodeList and not a Window\n      if (typeof length === 'number' && elements.window !== elements) {\n        if (length) {\n          for (var i = 0; i < length; i++) {\n            root[root.length++] = elements[i];\n          }\n        }\n      } else {\n        root[root.length++] = elements;\n      }\n    }\n  }\n}\n\n\nfunction jqLiteController(element, name) {\n  return jqLiteInheritedData(element, '$' + (name || 'ngController') + 'Controller');\n}\n\nfunction jqLiteInheritedData(element, name, value) {\n  // if element is the document object work with the html element instead\n  // this makes $(document).scope() possible\n  if (element.nodeType === NODE_TYPE_DOCUMENT) {\n    element = element.documentElement;\n  }\n  var names = isArray(name) ? name : [name];\n\n  while (element) {\n    for (var i = 0, ii = names.length; i < ii; i++) {\n      if (isDefined(value = jqLite.data(element, names[i]))) return value;\n    }\n\n    // If dealing with a document fragment node with a host element, and no parent, use the host\n    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM\n    // to lookup parent controllers.\n    element = element.parentNode || (element.nodeType === NODE_TYPE_DOCUMENT_FRAGMENT && element.host);\n  }\n}\n\nfunction jqLiteEmpty(element) {\n  jqLiteDealoc(element, true);\n  while (element.firstChild) {\n    element.removeChild(element.firstChild);\n  }\n}\n\nfunction jqLiteRemove(element, keepData) {\n  if (!keepData) jqLiteDealoc(element);\n  var parent = element.parentNode;\n  if (parent) parent.removeChild(element);\n}\n\n\nfunction jqLiteDocumentLoaded(action, win) {\n  win = win || window;\n  if (win.document.readyState === 'complete') {\n    // Force the action to be run async for consistent behavior\n    // from the action's point of view\n    // i.e. it will definitely not be in a $apply\n    win.setTimeout(action);\n  } else {\n    // No need to unbind this handler as load is only ever called once\n    jqLite(win).on('load', action);\n  }\n}\n\nfunction jqLiteReady(fn) {\n  function trigger() {\n    window.document.removeEventListener('DOMContentLoaded', trigger);\n    window.removeEventListener('load', trigger);\n    fn();\n  }\n\n  // check if document is already loaded\n  if (window.document.readyState === 'complete') {\n    window.setTimeout(fn);\n  } else {\n    // We can not use jqLite since we are not done loading and jQuery could be loaded later.\n\n    // Works for modern browsers and IE9\n    window.document.addEventListener('DOMContentLoaded', trigger);\n\n    // Fallback to window.onload for others\n    window.addEventListener('load', trigger);\n  }\n}\n\n//////////////////////////////////////////\n// Functions which are declared directly.\n//////////////////////////////////////////\nvar JQLitePrototype = JQLite.prototype = {\n  ready: jqLiteReady,\n  toString: function() {\n    var value = [];\n    forEach(this, function(e) { value.push('' + e);});\n    return '[' + value.join(', ') + ']';\n  },\n\n  eq: function(index) {\n      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);\n  },\n\n  length: 0,\n  push: push,\n  sort: [].sort,\n  splice: [].splice\n};\n\n//////////////////////////////////////////\n// Functions iterating getter/setters.\n// these functions return self on setter and\n// value on get.\n//////////////////////////////////////////\nvar BOOLEAN_ATTR = {};\nforEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {\n  BOOLEAN_ATTR[lowercase(value)] = value;\n});\nvar BOOLEAN_ELEMENTS = {};\nforEach('input,select,option,textarea,button,form,details'.split(','), function(value) {\n  BOOLEAN_ELEMENTS[value] = true;\n});\nvar ALIASED_ATTR = {\n  'ngMinlength': 'minlength',\n  'ngMaxlength': 'maxlength',\n  'ngMin': 'min',\n  'ngMax': 'max',\n  'ngPattern': 'pattern',\n  'ngStep': 'step'\n};\n\nfunction getBooleanAttrName(element, name) {\n  // check dom last since we will most likely fail on name\n  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];\n\n  // booleanAttr is here twice to minimize DOM access\n  return booleanAttr && BOOLEAN_ELEMENTS[nodeName_(element)] && booleanAttr;\n}\n\nfunction getAliasedAttrName(name) {\n  return ALIASED_ATTR[name];\n}\n\nforEach({\n  data: jqLiteData,\n  removeData: jqLiteRemoveData,\n  hasData: jqLiteHasData,\n  cleanData: function jqLiteCleanData(nodes) {\n    for (var i = 0, ii = nodes.length; i < ii; i++) {\n      jqLiteRemoveData(nodes[i]);\n      jqLiteOff(nodes[i]);\n    }\n  }\n}, function(fn, name) {\n  JQLite[name] = fn;\n});\n\nforEach({\n  data: jqLiteData,\n  inheritedData: jqLiteInheritedData,\n\n  scope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);\n  },\n\n  isolateScope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');\n  },\n\n  controller: jqLiteController,\n\n  injector: function(element) {\n    return jqLiteInheritedData(element, '$injector');\n  },\n\n  removeAttr: function(element, name) {\n    element.removeAttribute(name);\n  },\n\n  hasClass: jqLiteHasClass,\n\n  css: function(element, name, value) {\n    name = cssKebabToCamel(name);\n\n    if (isDefined(value)) {\n      element.style[name] = value;\n    } else {\n      return element.style[name];\n    }\n  },\n\n  attr: function(element, name, value) {\n    var ret;\n    var nodeType = element.nodeType;\n    if (nodeType === NODE_TYPE_TEXT || nodeType === NODE_TYPE_ATTRIBUTE || nodeType === NODE_TYPE_COMMENT ||\n      !element.getAttribute) {\n      return;\n    }\n\n    var lowercasedName = lowercase(name);\n    var isBooleanAttr = BOOLEAN_ATTR[lowercasedName];\n\n    if (isDefined(value)) {\n      // setter\n\n      if (value === null || (value === false && isBooleanAttr)) {\n        element.removeAttribute(name);\n      } else {\n        element.setAttribute(name, isBooleanAttr ? lowercasedName : value);\n      }\n    } else {\n      // getter\n\n      ret = element.getAttribute(name);\n\n      if (isBooleanAttr && ret !== null) {\n        ret = lowercasedName;\n      }\n      // Normalize non-existing attributes to undefined (as jQuery).\n      return ret === null ? undefined : ret;\n    }\n  },\n\n  prop: function(element, name, value) {\n    if (isDefined(value)) {\n      element[name] = value;\n    } else {\n      return element[name];\n    }\n  },\n\n  text: (function() {\n    getText.$dv = '';\n    return getText;\n\n    function getText(element, value) {\n      if (isUndefined(value)) {\n        var nodeType = element.nodeType;\n        return (nodeType === NODE_TYPE_ELEMENT || nodeType === NODE_TYPE_TEXT) ? element.textContent : '';\n      }\n      element.textContent = value;\n    }\n  })(),\n\n  val: function(element, value) {\n    if (isUndefined(value)) {\n      if (element.multiple && nodeName_(element) === 'select') {\n        var result = [];\n        forEach(element.options, function(option) {\n          if (option.selected) {\n            result.push(option.value || option.text);\n          }\n        });\n        return result;\n      }\n      return element.value;\n    }\n    element.value = value;\n  },\n\n  html: function(element, value) {\n    if (isUndefined(value)) {\n      return element.innerHTML;\n    }\n    jqLiteDealoc(element, true);\n    element.innerHTML = value;\n  },\n\n  empty: jqLiteEmpty\n}, function(fn, name) {\n  /**\n   * Properties: writes return selection, reads return first value\n   */\n  JQLite.prototype[name] = function(arg1, arg2) {\n    var i, key;\n    var nodeCount = this.length;\n\n    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it\n    // in a way that survives minification.\n    // jqLiteEmpty takes no arguments but is a setter.\n    if (fn !== jqLiteEmpty &&\n        (isUndefined((fn.length === 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2))) {\n      if (isObject(arg1)) {\n\n        // we are a write, but the object properties are the key/values\n        for (i = 0; i < nodeCount; i++) {\n          if (fn === jqLiteData) {\n            // data() takes the whole object in jQuery\n            fn(this[i], arg1);\n          } else {\n            for (key in arg1) {\n              fn(this[i], key, arg1[key]);\n            }\n          }\n        }\n        // return self for chaining\n        return this;\n      } else {\n        // we are a read, so read the first child.\n        // TODO: do we still need this?\n        var value = fn.$dv;\n        // Only if we have $dv do we iterate over all, otherwise it is just the first element.\n        var jj = (isUndefined(value)) ? Math.min(nodeCount, 1) : nodeCount;\n        for (var j = 0; j < jj; j++) {\n          var nodeValue = fn(this[j], arg1, arg2);\n          value = value ? value + nodeValue : nodeValue;\n        }\n        return value;\n      }\n    } else {\n      // we are a write, so apply to all children\n      for (i = 0; i < nodeCount; i++) {\n        fn(this[i], arg1, arg2);\n      }\n      // return self for chaining\n      return this;\n    }\n  };\n});\n\nfunction createEventHandler(element, events) {\n  var eventHandler = function(event, type) {\n    // jQuery specific api\n    event.isDefaultPrevented = function() {\n      return event.defaultPrevented;\n    };\n\n    var eventFns = events[type || event.type];\n    var eventFnsLength = eventFns ? eventFns.length : 0;\n\n    if (!eventFnsLength) return;\n\n    if (isUndefined(event.immediatePropagationStopped)) {\n      var originalStopImmediatePropagation = event.stopImmediatePropagation;\n      event.stopImmediatePropagation = function() {\n        event.immediatePropagationStopped = true;\n\n        if (event.stopPropagation) {\n          event.stopPropagation();\n        }\n\n        if (originalStopImmediatePropagation) {\n          originalStopImmediatePropagation.call(event);\n        }\n      };\n    }\n\n    event.isImmediatePropagationStopped = function() {\n      return event.immediatePropagationStopped === true;\n    };\n\n    // Some events have special handlers that wrap the real handler\n    var handlerWrapper = eventFns.specialHandlerWrapper || defaultHandlerWrapper;\n\n    // Copy event handlers in case event handlers array is modified during execution.\n    if ((eventFnsLength > 1)) {\n      eventFns = shallowCopy(eventFns);\n    }\n\n    for (var i = 0; i < eventFnsLength; i++) {\n      if (!event.isImmediatePropagationStopped()) {\n        handlerWrapper(element, event, eventFns[i]);\n      }\n    }\n  };\n\n  // TODO: this is a hack for angularMocks/clearDataCache that makes it possible to deregister all\n  //       events on `element`\n  eventHandler.elem = element;\n  return eventHandler;\n}\n\nfunction defaultHandlerWrapper(element, event, handler) {\n  handler.call(element, event);\n}\n\nfunction specialMouseHandlerWrapper(target, event, handler) {\n  // Refer to jQuery's implementation of mouseenter & mouseleave\n  // Read about mouseenter and mouseleave:\n  // http://www.quirksmode.org/js/events_mouse.html#link8\n  var related = event.relatedTarget;\n  // For mousenter/leave call the handler if related is outside the target.\n  // NB: No relatedTarget if the mouse left/entered the browser window\n  if (!related || (related !== target && !jqLiteContains.call(target, related))) {\n    handler.call(target, event);\n  }\n}\n\n//////////////////////////////////////////\n// Functions iterating traversal.\n// These functions chain results into a single\n// selector.\n//////////////////////////////////////////\nforEach({\n  removeData: jqLiteRemoveData,\n\n  on: function jqLiteOn(element, type, fn, unsupported) {\n    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');\n\n    // Do not add event handlers to non-elements because they will not be cleaned up.\n    if (!jqLiteAcceptsData(element)) {\n      return;\n    }\n\n    var expandoStore = jqLiteExpandoStore(element, true);\n    var events = expandoStore.events;\n    var handle = expandoStore.handle;\n\n    if (!handle) {\n      handle = expandoStore.handle = createEventHandler(element, events);\n    }\n\n    // http://jsperf.com/string-indexof-vs-split\n    var types = type.indexOf(' ') >= 0 ? type.split(' ') : [type];\n    var i = types.length;\n\n    var addHandler = function(type, specialHandlerWrapper, noEventListener) {\n      var eventFns = events[type];\n\n      if (!eventFns) {\n        eventFns = events[type] = [];\n        eventFns.specialHandlerWrapper = specialHandlerWrapper;\n        if (type !== '$destroy' && !noEventListener) {\n          element.addEventListener(type, handle);\n        }\n      }\n\n      eventFns.push(fn);\n    };\n\n    while (i--) {\n      type = types[i];\n      if (MOUSE_EVENT_MAP[type]) {\n        addHandler(MOUSE_EVENT_MAP[type], specialMouseHandlerWrapper);\n        addHandler(type, undefined, true);\n      } else {\n        addHandler(type);\n      }\n    }\n  },\n\n  off: jqLiteOff,\n\n  one: function(element, type, fn) {\n    element = jqLite(element);\n\n    //add the listener twice so that when it is called\n    //you can remove the original function and still be\n    //able to call element.off(ev, fn) normally\n    element.on(type, function onFn() {\n      element.off(type, fn);\n      element.off(type, onFn);\n    });\n    element.on(type, fn);\n  },\n\n  replaceWith: function(element, replaceNode) {\n    var index, parent = element.parentNode;\n    jqLiteDealoc(element);\n    forEach(new JQLite(replaceNode), function(node) {\n      if (index) {\n        parent.insertBefore(node, index.nextSibling);\n      } else {\n        parent.replaceChild(node, element);\n      }\n      index = node;\n    });\n  },\n\n  children: function(element) {\n    var children = [];\n    forEach(element.childNodes, function(element) {\n      if (element.nodeType === NODE_TYPE_ELEMENT) {\n        children.push(element);\n      }\n    });\n    return children;\n  },\n\n  contents: function(element) {\n    return element.contentDocument || element.childNodes || [];\n  },\n\n  append: function(element, node) {\n    var nodeType = element.nodeType;\n    if (nodeType !== NODE_TYPE_ELEMENT && nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT) return;\n\n    node = new JQLite(node);\n\n    for (var i = 0, ii = node.length; i < ii; i++) {\n      var child = node[i];\n      element.appendChild(child);\n    }\n  },\n\n  prepend: function(element, node) {\n    if (element.nodeType === NODE_TYPE_ELEMENT) {\n      var index = element.firstChild;\n      forEach(new JQLite(node), function(child) {\n        element.insertBefore(child, index);\n      });\n    }\n  },\n\n  wrap: function(element, wrapNode) {\n    jqLiteWrapNode(element, jqLite(wrapNode).eq(0).clone()[0]);\n  },\n\n  remove: jqLiteRemove,\n\n  detach: function(element) {\n    jqLiteRemove(element, true);\n  },\n\n  after: function(element, newElement) {\n    var index = element, parent = element.parentNode;\n\n    if (parent) {\n      newElement = new JQLite(newElement);\n\n      for (var i = 0, ii = newElement.length; i < ii; i++) {\n        var node = newElement[i];\n        parent.insertBefore(node, index.nextSibling);\n        index = node;\n      }\n    }\n  },\n\n  addClass: jqLiteAddClass,\n  removeClass: jqLiteRemoveClass,\n\n  toggleClass: function(element, selector, condition) {\n    if (selector) {\n      forEach(selector.split(' '), function(className) {\n        var classCondition = condition;\n        if (isUndefined(classCondition)) {\n          classCondition = !jqLiteHasClass(element, className);\n        }\n        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);\n      });\n    }\n  },\n\n  parent: function(element) {\n    var parent = element.parentNode;\n    return parent && parent.nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT ? parent : null;\n  },\n\n  next: function(element) {\n    return element.nextElementSibling;\n  },\n\n  find: function(element, selector) {\n    if (element.getElementsByTagName) {\n      return element.getElementsByTagName(selector);\n    } else {\n      return [];\n    }\n  },\n\n  clone: jqLiteClone,\n\n  triggerHandler: function(element, event, extraParameters) {\n\n    var dummyEvent, eventFnsCopy, handlerArgs;\n    var eventName = event.type || event;\n    var expandoStore = jqLiteExpandoStore(element);\n    var events = expandoStore && expandoStore.events;\n    var eventFns = events && events[eventName];\n\n    if (eventFns) {\n      // Create a dummy event to pass to the handlers\n      dummyEvent = {\n        preventDefault: function() { this.defaultPrevented = true; },\n        isDefaultPrevented: function() { return this.defaultPrevented === true; },\n        stopImmediatePropagation: function() { this.immediatePropagationStopped = true; },\n        isImmediatePropagationStopped: function() { return this.immediatePropagationStopped === true; },\n        stopPropagation: noop,\n        type: eventName,\n        target: element\n      };\n\n      // If a custom event was provided then extend our dummy event with it\n      if (event.type) {\n        dummyEvent = extend(dummyEvent, event);\n      }\n\n      // Copy event handlers in case event handlers array is modified during execution.\n      eventFnsCopy = shallowCopy(eventFns);\n      handlerArgs = extraParameters ? [dummyEvent].concat(extraParameters) : [dummyEvent];\n\n      forEach(eventFnsCopy, function(fn) {\n        if (!dummyEvent.isImmediatePropagationStopped()) {\n          fn.apply(element, handlerArgs);\n        }\n      });\n    }\n  }\n}, function(fn, name) {\n  /**\n   * chaining functions\n   */\n  JQLite.prototype[name] = function(arg1, arg2, arg3) {\n    var value;\n\n    for (var i = 0, ii = this.length; i < ii; i++) {\n      if (isUndefined(value)) {\n        value = fn(this[i], arg1, arg2, arg3);\n        if (isDefined(value)) {\n          // any function which returns a value needs to be wrapped\n          value = jqLite(value);\n        }\n      } else {\n        jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));\n      }\n    }\n    return isDefined(value) ? value : this;\n  };\n});\n\n// bind legacy bind/unbind to on/off\nJQLite.prototype.bind = JQLite.prototype.on;\nJQLite.prototype.unbind = JQLite.prototype.off;\n\n\n// Provider for private $$jqLite service\n/** @this */\nfunction $$jqLiteProvider() {\n  this.$get = function $$jqLite() {\n    return extend(JQLite, {\n      hasClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteHasClass(node, classes);\n      },\n      addClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteAddClass(node, classes);\n      },\n      removeClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteRemoveClass(node, classes);\n      }\n    });\n  };\n}\n\n/**\n * Computes a hash of an 'obj'.\n * Hash of a:\n *  string is string\n *  number is number as string\n *  object is either result of calling $$hashKey function on the object or uniquely generated id,\n *         that is also assigned to the $$hashKey property of the object.\n *\n * @param obj\n * @returns {string} hash string such that the same input will have the same hash string.\n *         The resulting string key is in 'type:hashKey' format.\n */\nfunction hashKey(obj, nextUidFn) {\n  var key = obj && obj.$$hashKey;\n\n  if (key) {\n    if (typeof key === 'function') {\n      key = obj.$$hashKey();\n    }\n    return key;\n  }\n\n  var objType = typeof obj;\n  if (objType === 'function' || (objType === 'object' && obj !== null)) {\n    key = obj.$$hashKey = objType + ':' + (nextUidFn || nextUid)();\n  } else {\n    key = objType + ':' + obj;\n  }\n\n  return key;\n}\n\n// A minimal ES2015 Map implementation.\n// Should be bug/feature equivalent to the native implementations of supported browsers\n// (for the features required in Angular).\n// See https://kangax.github.io/compat-table/es6/#test-Map\nvar nanKey = Object.create(null);\nfunction NgMapShim() {\n  this._keys = [];\n  this._values = [];\n  this._lastKey = NaN;\n  this._lastIndex = -1;\n}\nNgMapShim.prototype = {\n  _idx: function(key) {\n    if (key !== this._lastKey) {\n      this._lastKey = key;\n      this._lastIndex = this._keys.indexOf(key);\n    }\n    return this._lastIndex;\n  },\n  _transformKey: function(key) {\n    return isNumberNaN(key) ? nanKey : key;\n  },\n  get: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx !== -1) {\n      return this._values[idx];\n    }\n  },\n  has: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    return idx !== -1;\n  },\n  set: function(key, value) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx === -1) {\n      idx = this._lastIndex = this._keys.length;\n    }\n    this._keys[idx] = key;\n    this._values[idx] = value;\n\n    // Support: IE11\n    // Do not `return this` to simulate the partial IE11 implementation\n  },\n  delete: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx === -1) {\n      return false;\n    }\n    this._keys.splice(idx, 1);\n    this._values.splice(idx, 1);\n    this._lastKey = NaN;\n    this._lastIndex = -1;\n    return true;\n  }\n};\n\n// For now, always use `NgMapShim`, even if `window.Map` is available. Some native implementations\n// are still buggy (often in subtle ways) and can cause hard-to-debug failures. When native `Map`\n// implementations get more stable, we can reconsider switching to `window.Map` (when available).\nvar NgMap = NgMapShim;\n\nvar $$MapProvider = [/** @this */function() {\n  this.$get = [function() {\n    return NgMap;\n  }];\n}];\n\n/**\n * @ngdoc function\n * @module ng\n * @name angular.injector\n * @kind function\n *\n * @description\n * Creates an injector object that can be used for retrieving services as well as for\n * dependency injection (see {@link guide/di dependency injection}).\n *\n * @param {Array.<string|Function>} modules A list of module functions or their aliases. See\n *     {@link angular.module}. The `ng` module must be explicitly added.\n * @param {boolean=} [strictDi=false] Whether the injector should be in strict mode, which\n *     disallows argument name annotation inference.\n * @returns {injector} Injector object. See {@link auto.$injector $injector}.\n *\n * @example\n * Typical usage\n * ```js\n *   // create an injector\n *   var $injector = angular.injector(['ng']);\n *\n *   // use the injector to kick off your application\n *   // use the type inference to auto inject arguments, or use implicit injection\n *   $injector.invoke(function($rootScope, $compile, $document) {\n *     $compile($document)($rootScope);\n *     $rootScope.$digest();\n *   });\n * ```\n *\n * Sometimes you want to get access to the injector of a currently running AngularJS app\n * from outside AngularJS. Perhaps, you want to inject and compile some markup after the\n * application has been bootstrapped. You can do this using the extra `injector()` added\n * to JQuery/jqLite elements. See {@link angular.element}.\n *\n * *This is fairly rare but could be the case if a third party library is injecting the\n * markup.*\n *\n * In the following example a new block of HTML containing a `ng-controller`\n * directive is added to the end of the document body by JQuery. We then compile and link\n * it into the current AngularJS scope.\n *\n * ```js\n * var $div = $('<div ng-controller=\"MyCtrl\">{{content.label}}</div>');\n * $(document.body).append($div);\n *\n * angular.element(document).injector().invoke(function($compile) {\n *   var scope = angular.element($div).scope();\n *   $compile($div)(scope);\n * });\n * ```\n */\n\n\n/**\n * @ngdoc module\n * @name auto\n * @installation\n * @description\n *\n * Implicit module which gets automatically added to each {@link auto.$injector $injector}.\n */\n\nvar ARROW_ARG = /^([^(]+?)=>/;\nvar FN_ARGS = /^[^(]*\\(\\s*([^)]*)\\)/m;\nvar FN_ARG_SPLIT = /,/;\nvar FN_ARG = /^\\s*(_?)(\\S+?)\\1\\s*$/;\nvar STRIP_COMMENTS = /((\\/\\/.*$)|(\\/\\*[\\s\\S]*?\\*\\/))/mg;\nvar $injectorMinErr = minErr('$injector');\n\nfunction stringifyFn(fn) {\n  return Function.prototype.toString.call(fn);\n}\n\nfunction extractArgs(fn) {\n  var fnText = stringifyFn(fn).replace(STRIP_COMMENTS, ''),\n      args = fnText.match(ARROW_ARG) || fnText.match(FN_ARGS);\n  return args;\n}\n\nfunction anonFn(fn) {\n  // For anonymous functions, showing at the very least the function signature can help in\n  // debugging.\n  var args = extractArgs(fn);\n  if (args) {\n    return 'function(' + (args[1] || '').replace(/[\\s\\r\\n]+/, ' ') + ')';\n  }\n  return 'fn';\n}\n\nfunction annotate(fn, strictDi, name) {\n  var $inject,\n      argDecl,\n      last;\n\n  if (typeof fn === 'function') {\n    if (!($inject = fn.$inject)) {\n      $inject = [];\n      if (fn.length) {\n        if (strictDi) {\n          if (!isString(name) || !name) {\n            name = fn.name || anonFn(fn);\n          }\n          throw $injectorMinErr('strictdi',\n            '{0} is not using explicit annotation and cannot be invoked in strict mode', name);\n        }\n        argDecl = extractArgs(fn);\n        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg) {\n          arg.replace(FN_ARG, function(all, underscore, name) {\n            $inject.push(name);\n          });\n        });\n      }\n      fn.$inject = $inject;\n    }\n  } else if (isArray(fn)) {\n    last = fn.length - 1;\n    assertArgFn(fn[last], 'fn');\n    $inject = fn.slice(0, last);\n  } else {\n    assertArgFn(fn, 'fn', true);\n  }\n  return $inject;\n}\n\n///////////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $injector\n *\n * @description\n *\n * `$injector` is used to retrieve object instances as defined by\n * {@link auto.$provide provider}, instantiate types, invoke methods,\n * and load modules.\n *\n * The following always holds true:\n *\n * ```js\n *   var $injector = angular.injector();\n *   expect($injector.get('$injector')).toBe($injector);\n *   expect($injector.invoke(function($injector) {\n *     return $injector;\n *   })).toBe($injector);\n * ```\n *\n * ## Injection Function Annotation\n *\n * JavaScript does not have annotations, and annotations are needed for dependency injection. The\n * following are all valid ways of annotating function with injection arguments and are equivalent.\n *\n * ```js\n *   // inferred (only works if code not minified/obfuscated)\n *   $injector.invoke(function(serviceA){});\n *\n *   // annotated\n *   function explicit(serviceA) {};\n *   explicit.$inject = ['serviceA'];\n *   $injector.invoke(explicit);\n *\n *   // inline\n *   $injector.invoke(['serviceA', function(serviceA){}]);\n * ```\n *\n * ### Inference\n *\n * In JavaScript calling `toString()` on a function returns the function definition. The definition\n * can then be parsed and the function arguments can be extracted. This method of discovering\n * annotations is disallowed when the injector is in strict mode.\n * *NOTE:* This does not work with minification, and obfuscation tools since these tools change the\n * argument names.\n *\n * ### `$inject` Annotation\n * By adding an `$inject` property onto a function the injection parameters can be specified.\n *\n * ### Inline\n * As an array of injection names, where the last item in the array is the function to call.\n */\n\n/**\n * @ngdoc property\n * @name $injector#modules\n * @type {Object}\n * @description\n * A hash containing all the modules that have been loaded into the\n * $injector.\n *\n * You can use this property to find out information about a module via the\n * {@link angular.Module#info `myModule.info(...)`} method.\n *\n * For example:\n *\n * ```\n * var info = $injector.modules['ngAnimate'].info();\n * ```\n *\n * **Do not use this property to attempt to modify the modules after the application\n * has been bootstrapped.**\n */\n\n\n/**\n * @ngdoc method\n * @name $injector#get\n *\n * @description\n * Return an instance of the service.\n *\n * @param {string} name The name of the instance to retrieve.\n * @param {string=} caller An optional string to provide the origin of the function call for error messages.\n * @return {*} The instance.\n */\n\n/**\n * @ngdoc method\n * @name $injector#invoke\n *\n * @description\n * Invoke the method and supply the method arguments from the `$injector`.\n *\n * @param {Function|Array.<string|Function>} fn The injectable function to invoke. Function parameters are\n *   injected according to the {@link guide/di $inject Annotation} rules.\n * @param {Object=} self The `this` for the invoked method.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n *                         object first, before the `$injector` is consulted.\n * @returns {*} the value returned by the invoked `fn` function.\n */\n\n/**\n * @ngdoc method\n * @name $injector#has\n *\n * @description\n * Allows the user to query if the particular service exists.\n *\n * @param {string} name Name of the service to query.\n * @returns {boolean} `true` if injector has given service.\n */\n\n/**\n * @ngdoc method\n * @name $injector#instantiate\n * @description\n * Create a new instance of JS type. The method takes a constructor function, invokes the new\n * operator, and supplies all of the arguments to the constructor function as specified by the\n * constructor annotation.\n *\n * @param {Function} Type Annotated constructor function.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n * object first, before the `$injector` is consulted.\n * @returns {Object} new instance of `Type`.\n */\n\n/**\n * @ngdoc method\n * @name $injector#annotate\n *\n * @description\n * Returns an array of service names which the function is requesting for injection. This API is\n * used by the injector to determine which services need to be injected into the function when the\n * function is invoked. There are three ways in which the function can be annotated with the needed\n * dependencies.\n *\n * #### Argument names\n *\n * The simplest form is to extract the dependencies from the arguments of the function. This is done\n * by converting the function into a string using `toString()` method and extracting the argument\n * names.\n * ```js\n *   // Given\n *   function MyController($scope, $route) {\n *     // ...\n *   }\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * You can disallow this method by using strict injection mode.\n *\n * This method does not work with code minification / obfuscation. For this reason the following\n * annotation strategies are supported.\n *\n * #### The `$inject` property\n *\n * If a function has an `$inject` property and its value is an array of strings, then the strings\n * represent names of services to be injected into the function.\n * ```js\n *   // Given\n *   var MyController = function(obfuscatedScope, obfuscatedRoute) {\n *     // ...\n *   }\n *   // Define function dependencies\n *   MyController['$inject'] = ['$scope', '$route'];\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * #### The array notation\n *\n * It is often desirable to inline Injected functions and that's when setting the `$inject` property\n * is very inconvenient. In these situations using the array notation to specify the dependencies in\n * a way that survives minification is a better choice:\n *\n * ```js\n *   // We wish to write this (not minification / obfuscation safe)\n *   injector.invoke(function($compile, $rootScope) {\n *     // ...\n *   });\n *\n *   // We are forced to write break inlining\n *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {\n *     // ...\n *   };\n *   tmpFn.$inject = ['$compile', '$rootScope'];\n *   injector.invoke(tmpFn);\n *\n *   // To better support inline function the inline annotation is supported\n *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {\n *     // ...\n *   }]);\n *\n *   // Therefore\n *   expect(injector.annotate(\n *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])\n *    ).toEqual(['$compile', '$rootScope']);\n * ```\n *\n * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to\n * be retrieved as described above.\n *\n * @param {boolean=} [strictDi=false] Disallow argument name annotation inference.\n *\n * @returns {Array.<string>} The names of the services which the function requires.\n */\n/**\n * @ngdoc method\n * @name $injector#loadNewModules\n *\n * @description\n *\n * **This is a dangerous API, which you use at your own risk!**\n *\n * Add the specified modules to the current injector.\n *\n * This method will add each of the injectables to the injector and execute all of the config and run\n * blocks for each module passed to the method.\n *\n * If a module has already been loaded into the injector then it will not be loaded again.\n *\n * * The application developer is responsible for loading the code containing the modules; and for\n * ensuring that lazy scripts are not downloaded and executed more often that desired.\n * * Previously compiled HTML will not be affected by newly loaded directives, filters and components.\n * * Modules cannot be unloaded.\n *\n * You can use {@link $injector#modules `$injector.modules`} to check whether a module has been loaded\n * into the injector, which may indicate whether the script has been executed already.\n *\n * @example\n * Here is an example of loading a bundle of modules, with a utility method called `getScript`:\n *\n * ```javascript\n * app.factory('loadModule', function($injector) {\n *   return function loadModule(moduleName, bundleUrl) {\n *     return getScript(bundleUrl).then(function() { $injector.loadNewModules([moduleName]); });\n *   };\n * })\n * ```\n *\n * @param {Array<String|Function|Array>=} mods an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n */\n\n\n/**\n * @ngdoc service\n * @name $provide\n *\n * @description\n *\n * The {@link auto.$provide $provide} service has a number of methods for registering components\n * with the {@link auto.$injector $injector}. Many of these functions are also exposed on\n * {@link angular.Module}.\n *\n * An AngularJS **service** is a singleton object created by a **service factory**.  These **service\n * factories** are functions which, in turn, are created by a **service provider**.\n * The **service providers** are constructor functions. When instantiated they must contain a\n * property called `$get`, which holds the **service factory** function.\n *\n * When you request a service, the {@link auto.$injector $injector} is responsible for finding the\n * correct **service provider**, instantiating it and then calling its `$get` **service factory**\n * function to get the instance of the **service**.\n *\n * Often services have no configuration options and there is no need to add methods to the service\n * provider.  The provider will be no more than a constructor function with a `$get` property. For\n * these cases the {@link auto.$provide $provide} service has additional helper methods to register\n * services without specifying a provider.\n *\n * * {@link auto.$provide#provider provider(name, provider)} - registers a **service provider** with the\n *     {@link auto.$injector $injector}\n * * {@link auto.$provide#constant constant(name, obj)} - registers a value/object that can be accessed by\n *     providers and services.\n * * {@link auto.$provide#value value(name, obj)} - registers a value/object that can only be accessed by\n *     services, not providers.\n * * {@link auto.$provide#factory factory(name, fn)} - registers a service **factory function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will contain the\n *     given factory function.\n * * {@link auto.$provide#service service(name, Fn)} - registers a **constructor function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate\n *      a new object using the given constructor function.\n * * {@link auto.$provide#decorator decorator(name, decorFn)} - registers a **decorator function** that\n *      will be able to modify or replace the implementation of another service.\n *\n * See the individual methods for more information and examples.\n */\n\n/**\n * @ngdoc method\n * @name $provide#provider\n * @description\n *\n * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions\n * are constructor functions, whose instances are responsible for \"providing\" a factory for a\n * service.\n *\n * Service provider names start with the name of the service they provide followed by `Provider`.\n * For example, the {@link ng.$log $log} service has a provider called\n * {@link ng.$logProvider $logProvider}.\n *\n * Service provider objects can have additional methods which allow configuration of the provider\n * and its service. Importantly, you can configure what kind of service is created by the `$get`\n * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a\n * method {@link ng.$logProvider#debugEnabled debugEnabled}\n * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the\n * console or not.\n *\n * It is possible to inject other providers into the provider function,\n * but the injected provider must have been defined before the one that requires it.\n *\n * @param {string} name The name of the instance. NOTE: the provider will be available under `name +\n                        'Provider'` key.\n * @param {(Object|function())} provider If the provider is:\n *\n *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using\n *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.\n *   - `Constructor`: a new instance of the provider will be created using\n *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.\n *\n * @returns {Object} registered provider instance\n\n * @example\n *\n * The following example shows how to create a simple event tracking service and register it using\n * {@link auto.$provide#provider $provide.provider()}.\n *\n * ```js\n *  // Define the eventTracker provider\n *  function EventTrackerProvider() {\n *    var trackingUrl = '/track';\n *\n *    // A provider method for configuring where the tracked events should been saved\n *    this.setTrackingUrl = function(url) {\n *      trackingUrl = url;\n *    };\n *\n *    // The service factory function\n *    this.$get = ['$http', function($http) {\n *      var trackedEvents = {};\n *      return {\n *        // Call this to track an event\n *        event: function(event) {\n *          var count = trackedEvents[event] || 0;\n *          count += 1;\n *          trackedEvents[event] = count;\n *          return count;\n *        },\n *        // Call this to save the tracked events to the trackingUrl\n *        save: function() {\n *          $http.post(trackingUrl, trackedEvents);\n *        }\n *      };\n *    }];\n *  }\n *\n *  describe('eventTracker', function() {\n *    var postSpy;\n *\n *    beforeEach(module(function($provide) {\n *      // Register the eventTracker provider\n *      $provide.provider('eventTracker', EventTrackerProvider);\n *    }));\n *\n *    beforeEach(module(function(eventTrackerProvider) {\n *      // Configure eventTracker provider\n *      eventTrackerProvider.setTrackingUrl('/custom-track');\n *    }));\n *\n *    it('tracks events', inject(function(eventTracker) {\n *      expect(eventTracker.event('login')).toEqual(1);\n *      expect(eventTracker.event('login')).toEqual(2);\n *    }));\n *\n *    it('saves to the tracking url', inject(function(eventTracker, $http) {\n *      postSpy = spyOn($http, 'post');\n *      eventTracker.event('login');\n *      eventTracker.save();\n *      expect(postSpy).toHaveBeenCalled();\n *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');\n *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');\n *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });\n *    }));\n *  });\n * ```\n */\n\n/**\n * @ngdoc method\n * @name $provide#factory\n * @description\n *\n * Register a **service factory**, which will be called to return the service instance.\n * This is short for registering a service where its provider consists of only a `$get` property,\n * which is the given service factory function.\n * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to\n * configure your service in a provider.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} $getFn The injectable $getFn for the instance creation.\n *                      Internally this is a short hand for `$provide.provider(name, {$get: $getFn})`.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service\n * ```js\n *   $provide.factory('ping', ['$http', function($http) {\n *     return function ping() {\n *       return $http.send('/ping');\n *     };\n *   }]);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#service\n * @description\n *\n * Register a **service constructor**, which will be invoked with `new` to create the service\n * instance.\n * This is short for registering a service where its provider's `$get` property is a factory\n * function that returns an instance instantiated by the injector from the service constructor\n * function.\n *\n * Internally it looks a bit like this:\n *\n * ```\n * {\n *   $get: function() {\n *     return $injector.instantiate(constructor);\n *   }\n * }\n * ```\n *\n *\n * You should use {@link auto.$provide#service $provide.service(class)} if you define your service\n * as a type/class.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} constructor An injectable class (constructor function)\n *     that will be instantiated.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service using\n * {@link auto.$provide#service $provide.service(class)}.\n * ```js\n *   var Ping = function($http) {\n *     this.$http = $http;\n *   };\n *\n *   Ping.$inject = ['$http'];\n *\n *   Ping.prototype.send = function() {\n *     return this.$http.get('/ping');\n *   };\n *   $provide.service('ping', Ping);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping.send();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#value\n * @description\n *\n * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a\n * number, an array, an object or a function. This is short for registering a service where its\n * provider's `$get` property is a factory function that takes no arguments and returns the **value\n * service**. That also means it is not possible to inject other services into a value service.\n *\n * Value services are similar to constant services, except that they cannot be injected into a\n * module configuration function (see {@link angular.Module#config}) but they can be overridden by\n * an AngularJS {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the instance.\n * @param {*} value The value.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here are some examples of creating value services.\n * ```js\n *   $provide.value('ADMIN_USER', 'admin');\n *\n *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });\n *\n *   $provide.value('halfOf', function(value) {\n *     return value / 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#constant\n * @description\n *\n * Register a **constant service** with the {@link auto.$injector $injector}, such as a string,\n * a number, an array, an object or a function. Like the {@link auto.$provide#value value}, it is not\n * possible to inject other services into a constant.\n *\n * But unlike {@link auto.$provide#value value}, a constant can be\n * injected into a module configuration function (see {@link angular.Module#config}) and it cannot\n * be overridden by an AngularJS {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the constant.\n * @param {*} value The constant value.\n * @returns {Object} registered instance\n *\n * @example\n * Here a some examples of creating constants:\n * ```js\n *   $provide.constant('SHARD_HEIGHT', 306);\n *\n *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);\n *\n *   $provide.constant('double', function(value) {\n *     return value * 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#decorator\n * @description\n *\n * Register a **decorator function** with the {@link auto.$injector $injector}. A decorator function\n * intercepts the creation of a service, allowing it to override or modify the behavior of the\n * service. The return value of the decorator function may be the original service, or a new service\n * that replaces (or wraps and delegates to) the original service.\n *\n * You can find out more about using decorators in the {@link guide/decorators} guide.\n *\n * @param {string} name The name of the service to decorate.\n * @param {Function|Array.<string|Function>} decorator This function will be invoked when the service needs to be\n *    provided and should return the decorated service instance. The function is called using\n *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.\n *    Local injection arguments:\n *\n *    * `$delegate` - The original service instance, which can be replaced, monkey patched, configured,\n *      decorated or delegated to.\n *\n * @example\n * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting\n * calls to {@link ng.$log#error $log.warn()}.\n * ```js\n *   $provide.decorator('$log', ['$delegate', function($delegate) {\n *     $delegate.warn = $delegate.error;\n *     return $delegate;\n *   }]);\n * ```\n */\n\n\nfunction createInjector(modulesToLoad, strictDi) {\n  strictDi = (strictDi === true);\n  var INSTANTIATING = {},\n      providerSuffix = 'Provider',\n      path = [],\n      loadedModules = new NgMap(),\n      providerCache = {\n        $provide: {\n            provider: supportObject(provider),\n            factory: supportObject(factory),\n            service: supportObject(service),\n            value: supportObject(value),\n            constant: supportObject(constant),\n            decorator: decorator\n          }\n      },\n      providerInjector = (providerCache.$injector =\n          createInternalInjector(providerCache, function(serviceName, caller) {\n            if (angular.isString(caller)) {\n              path.push(caller);\n            }\n            throw $injectorMinErr('unpr', 'Unknown provider: {0}', path.join(' <- '));\n          })),\n      instanceCache = {},\n      protoInstanceInjector =\n          createInternalInjector(instanceCache, function(serviceName, caller) {\n            var provider = providerInjector.get(serviceName + providerSuffix, caller);\n            return instanceInjector.invoke(\n                provider.$get, provider, undefined, serviceName);\n          }),\n      instanceInjector = protoInstanceInjector;\n\n  providerCache['$injector' + providerSuffix] = { $get: valueFn(protoInstanceInjector) };\n  instanceInjector.modules = providerInjector.modules = createMap();\n  var runBlocks = loadModules(modulesToLoad);\n  instanceInjector = protoInstanceInjector.get('$injector');\n  instanceInjector.strictDi = strictDi;\n  forEach(runBlocks, function(fn) { if (fn) instanceInjector.invoke(fn); });\n\n  instanceInjector.loadNewModules = function(mods) {\n    forEach(loadModules(mods), function(fn) { if (fn) instanceInjector.invoke(fn); });\n  };\n\n\n  return instanceInjector;\n\n  ////////////////////////////////////\n  // $provider\n  ////////////////////////////////////\n\n  function supportObject(delegate) {\n    return function(key, value) {\n      if (isObject(key)) {\n        forEach(key, reverseParams(delegate));\n      } else {\n        return delegate(key, value);\n      }\n    };\n  }\n\n  function provider(name, provider_) {\n    assertNotHasOwnProperty(name, 'service');\n    if (isFunction(provider_) || isArray(provider_)) {\n      provider_ = providerInjector.instantiate(provider_);\n    }\n    if (!provider_.$get) {\n      throw $injectorMinErr('pget', 'Provider \\'{0}\\' must define $get factory method.', name);\n    }\n    return (providerCache[name + providerSuffix] = provider_);\n  }\n\n  function enforceReturnValue(name, factory) {\n    return /** @this */ function enforcedReturnValue() {\n      var result = instanceInjector.invoke(factory, this);\n      if (isUndefined(result)) {\n        throw $injectorMinErr('undef', 'Provider \\'{0}\\' must return a value from $get factory method.', name);\n      }\n      return result;\n    };\n  }\n\n  function factory(name, factoryFn, enforce) {\n    return provider(name, {\n      $get: enforce !== false ? enforceReturnValue(name, factoryFn) : factoryFn\n    });\n  }\n\n  function service(name, constructor) {\n    return factory(name, ['$injector', function($injector) {\n      return $injector.instantiate(constructor);\n    }]);\n  }\n\n  function value(name, val) { return factory(name, valueFn(val), false); }\n\n  function constant(name, value) {\n    assertNotHasOwnProperty(name, 'constant');\n    providerCache[name] = value;\n    instanceCache[name] = value;\n  }\n\n  function decorator(serviceName, decorFn) {\n    var origProvider = providerInjector.get(serviceName + providerSuffix),\n        orig$get = origProvider.$get;\n\n    origProvider.$get = function() {\n      var origInstance = instanceInjector.invoke(orig$get, origProvider);\n      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});\n    };\n  }\n\n  ////////////////////////////////////\n  // Module Loading\n  ////////////////////////////////////\n  function loadModules(modulesToLoad) {\n    assertArg(isUndefined(modulesToLoad) || isArray(modulesToLoad), 'modulesToLoad', 'not an array');\n    var runBlocks = [], moduleFn;\n    forEach(modulesToLoad, function(module) {\n      if (loadedModules.get(module)) return;\n      loadedModules.set(module, true);\n\n      function runInvokeQueue(queue) {\n        var i, ii;\n        for (i = 0, ii = queue.length; i < ii; i++) {\n          var invokeArgs = queue[i],\n              provider = providerInjector.get(invokeArgs[0]);\n\n          provider[invokeArgs[1]].apply(provider, invokeArgs[2]);\n        }\n      }\n\n      try {\n        if (isString(module)) {\n          moduleFn = angularModule(module);\n          instanceInjector.modules[module] = moduleFn;\n          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);\n          runInvokeQueue(moduleFn._invokeQueue);\n          runInvokeQueue(moduleFn._configBlocks);\n        } else if (isFunction(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else if (isArray(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else {\n          assertArgFn(module, 'module');\n        }\n      } catch (e) {\n        if (isArray(module)) {\n          module = module[module.length - 1];\n        }\n        if (e.message && e.stack && e.stack.indexOf(e.message) === -1) {\n          // Safari & FF's stack traces don't contain error.message content\n          // unlike those of Chrome and IE\n          // So if stack doesn't contain message, we create a new string that contains both.\n          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.\n          // eslint-disable-next-line no-ex-assign\n          e = e.message + '\\n' + e.stack;\n        }\n        throw $injectorMinErr('modulerr', 'Failed to instantiate module {0} due to:\\n{1}',\n                  module, e.stack || e.message || e);\n      }\n    });\n    return runBlocks;\n  }\n\n  ////////////////////////////////////\n  // internal Injector\n  ////////////////////////////////////\n\n  function createInternalInjector(cache, factory) {\n\n    function getService(serviceName, caller) {\n      if (cache.hasOwnProperty(serviceName)) {\n        if (cache[serviceName] === INSTANTIATING) {\n          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',\n                    serviceName + ' <- ' + path.join(' <- '));\n        }\n        return cache[serviceName];\n      } else {\n        try {\n          path.unshift(serviceName);\n          cache[serviceName] = INSTANTIATING;\n          cache[serviceName] = factory(serviceName, caller);\n          return cache[serviceName];\n        } catch (err) {\n          if (cache[serviceName] === INSTANTIATING) {\n            delete cache[serviceName];\n          }\n          throw err;\n        } finally {\n          path.shift();\n        }\n      }\n    }\n\n\n    function injectionArgs(fn, locals, serviceName) {\n      var args = [],\n          $inject = createInjector.$$annotate(fn, strictDi, serviceName);\n\n      for (var i = 0, length = $inject.length; i < length; i++) {\n        var key = $inject[i];\n        if (typeof key !== 'string') {\n          throw $injectorMinErr('itkn',\n                  'Incorrect injection token! Expected service name as string, got {0}', key);\n        }\n        args.push(locals && locals.hasOwnProperty(key) ? locals[key] :\n                                                         getService(key, serviceName));\n      }\n      return args;\n    }\n\n    function isClass(func) {\n      // Support: IE 9-11 only\n      // IE 9-11 do not support classes and IE9 leaks with the code below.\n      if (msie || typeof func !== 'function') {\n        return false;\n      }\n      var result = func.$$ngIsClass;\n      if (!isBoolean(result)) {\n        result = func.$$ngIsClass = /^class\\b/.test(stringifyFn(func));\n      }\n      return result;\n    }\n\n    function invoke(fn, self, locals, serviceName) {\n      if (typeof locals === 'string') {\n        serviceName = locals;\n        locals = null;\n      }\n\n      var args = injectionArgs(fn, locals, serviceName);\n      if (isArray(fn)) {\n        fn = fn[fn.length - 1];\n      }\n\n      if (!isClass(fn)) {\n        // http://jsperf.com/angularjs-invoke-apply-vs-switch\n        // #5388\n        return fn.apply(self, args);\n      } else {\n        args.unshift(null);\n        return new (Function.prototype.bind.apply(fn, args))();\n      }\n    }\n\n\n    function instantiate(Type, locals, serviceName) {\n      // Check if Type is annotated and use just the given function at n-1 as parameter\n      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);\n      var ctor = (isArray(Type) ? Type[Type.length - 1] : Type);\n      var args = injectionArgs(Type, locals, serviceName);\n      // Empty object at position 0 is ignored for invocation with `new`, but required.\n      args.unshift(null);\n      return new (Function.prototype.bind.apply(ctor, args))();\n    }\n\n\n    return {\n      invoke: invoke,\n      instantiate: instantiate,\n      get: getService,\n      annotate: createInjector.$$annotate,\n      has: function(name) {\n        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);\n      }\n    };\n  }\n}\n\ncreateInjector.$$annotate = annotate;\n\n/**\n * @ngdoc provider\n * @name $anchorScrollProvider\n * @this\n *\n * @description\n * Use `$anchorScrollProvider` to disable automatic scrolling whenever\n * {@link ng.$location#hash $location.hash()} changes.\n */\nfunction $AnchorScrollProvider() {\n\n  var autoScrollingEnabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $anchorScrollProvider#disableAutoScrolling\n   *\n   * @description\n   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to\n   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />\n   * Use this method to disable automatic scrolling.\n   *\n   * If automatic scrolling is disabled, one must explicitly call\n   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the\n   * current hash.\n   */\n  this.disableAutoScrolling = function() {\n    autoScrollingEnabled = false;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $anchorScroll\n   * @kind function\n   * @requires $window\n   * @requires $location\n   * @requires $rootScope\n   *\n   * @description\n   * When called, it scrolls to the element related to the specified `hash` or (if omitted) to the\n   * current value of {@link ng.$location#hash $location.hash()}, according to the rules specified\n   * in the\n   * [HTML5 spec](http://www.w3.org/html/wg/drafts/html/master/browsers.html#an-indicated-part-of-the-document).\n   *\n   * It also watches the {@link ng.$location#hash $location.hash()} and automatically scrolls to\n   * match any anchor whenever it changes. This can be disabled by calling\n   * {@link ng.$anchorScrollProvider#disableAutoScrolling $anchorScrollProvider.disableAutoScrolling()}.\n   *\n   * Additionally, you can use its {@link ng.$anchorScroll#yOffset yOffset} property to specify a\n   * vertical scroll-offset (either fixed or dynamic).\n   *\n   * @param {string=} hash The hash specifying the element to scroll to. If omitted, the value of\n   *                       {@link ng.$location#hash $location.hash()} will be used.\n   *\n   * @property {(number|function|jqLite)} yOffset\n   * If set, specifies a vertical scroll-offset. This is often useful when there are fixed\n   * positioned elements at the top of the page, such as navbars, headers etc.\n   *\n   * `yOffset` can be specified in various ways:\n   * - **number**: A fixed number of pixels to be used as offset.<br /><br />\n   * - **function**: A getter function called everytime `$anchorScroll()` is executed. Must return\n   *   a number representing the offset (in pixels).<br /><br />\n   * - **jqLite**: A jqLite/jQuery element to be used for specifying the offset. The distance from\n   *   the top of the page to the element's bottom will be used as offset.<br />\n   *   **Note**: The element will be taken into account only as long as its `position` is set to\n   *   `fixed`. This option is useful, when dealing with responsive navbars/headers that adjust\n   *   their height and/or positioning according to the viewport's size.\n   *\n   * <br />\n   * <div class=\"alert alert-warning\">\n   * In order for `yOffset` to work properly, scrolling should take place on the document's root and\n   * not some child element.\n   * </div>\n   *\n   * @example\n     <example module=\"anchorScrollExample\" name=\"anchor-scroll\">\n       <file name=\"index.html\">\n         <div id=\"scrollArea\" ng-controller=\"ScrollController\">\n           <a ng-click=\"gotoBottom()\">Go to bottom</a>\n           <a id=\"bottom\"></a> You're at the bottom!\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollExample', [])\n           .controller('ScrollController', ['$scope', '$location', '$anchorScroll',\n             function($scope, $location, $anchorScroll) {\n               $scope.gotoBottom = function() {\n                 // set the location.hash to the id of\n                 // the element you wish to scroll to.\n                 $location.hash('bottom');\n\n                 // call $anchorScroll()\n                 $anchorScroll();\n               };\n             }]);\n       </file>\n       <file name=\"style.css\">\n         #scrollArea {\n           height: 280px;\n           overflow: auto;\n         }\n\n         #bottom {\n           display: block;\n           margin-top: 2000px;\n         }\n       </file>\n     </example>\n   *\n   * <hr />\n   * The example below illustrates the use of a vertical scroll-offset (specified as a fixed value).\n   * See {@link ng.$anchorScroll#yOffset $anchorScroll.yOffset} for more details.\n   *\n   * @example\n     <example module=\"anchorScrollOffsetExample\" name=\"anchor-scroll-offset\">\n       <file name=\"index.html\">\n         <div class=\"fixed-header\" ng-controller=\"headerCtrl\">\n           <a href=\"\" ng-click=\"gotoAnchor(x)\" ng-repeat=\"x in [1,2,3,4,5]\">\n             Go to anchor {{x}}\n           </a>\n         </div>\n         <div id=\"anchor{{x}}\" class=\"anchor\" ng-repeat=\"x in [1,2,3,4,5]\">\n           Anchor {{x}} of 5\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollOffsetExample', [])\n           .run(['$anchorScroll', function($anchorScroll) {\n             $anchorScroll.yOffset = 50;   // always scroll by 50 extra pixels\n           }])\n           .controller('headerCtrl', ['$anchorScroll', '$location', '$scope',\n             function($anchorScroll, $location, $scope) {\n               $scope.gotoAnchor = function(x) {\n                 var newHash = 'anchor' + x;\n                 if ($location.hash() !== newHash) {\n                   // set the $location.hash to `newHash` and\n                   // $anchorScroll will automatically scroll to it\n                   $location.hash('anchor' + x);\n                 } else {\n                   // call $anchorScroll() explicitly,\n                   // since $location.hash hasn't changed\n                   $anchorScroll();\n                 }\n               };\n             }\n           ]);\n       </file>\n       <file name=\"style.css\">\n         body {\n           padding-top: 50px;\n         }\n\n         .anchor {\n           border: 2px dashed DarkOrchid;\n           padding: 10px 10px 200px 10px;\n         }\n\n         .fixed-header {\n           background-color: rgba(0, 0, 0, 0.2);\n           height: 50px;\n           position: fixed;\n           top: 0; left: 0; right: 0;\n         }\n\n         .fixed-header > a {\n           display: inline-block;\n           margin: 5px 15px;\n         }\n       </file>\n     </example>\n   */\n  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {\n    var document = $window.document;\n\n    // Helper function to get first anchor from a NodeList\n    // (using `Array#some()` instead of `angular#forEach()` since it's more performant\n    //  and working in all supported browsers.)\n    function getFirstAnchor(list) {\n      var result = null;\n      Array.prototype.some.call(list, function(element) {\n        if (nodeName_(element) === 'a') {\n          result = element;\n          return true;\n        }\n      });\n      return result;\n    }\n\n    function getYOffset() {\n\n      var offset = scroll.yOffset;\n\n      if (isFunction(offset)) {\n        offset = offset();\n      } else if (isElement(offset)) {\n        var elem = offset[0];\n        var style = $window.getComputedStyle(elem);\n        if (style.position !== 'fixed') {\n          offset = 0;\n        } else {\n          offset = elem.getBoundingClientRect().bottom;\n        }\n      } else if (!isNumber(offset)) {\n        offset = 0;\n      }\n\n      return offset;\n    }\n\n    function scrollTo(elem) {\n      if (elem) {\n        elem.scrollIntoView();\n\n        var offset = getYOffset();\n\n        if (offset) {\n          // `offset` is the number of pixels we should scroll UP in order to align `elem` properly.\n          // This is true ONLY if the call to `elem.scrollIntoView()` initially aligns `elem` at the\n          // top of the viewport.\n          //\n          // IF the number of pixels from the top of `elem` to the end of the page's content is less\n          // than the height of the viewport, then `elem.scrollIntoView()` will align the `elem` some\n          // way down the page.\n          //\n          // This is often the case for elements near the bottom of the page.\n          //\n          // In such cases we do not need to scroll the whole `offset` up, just the difference between\n          // the top of the element and the offset, which is enough to align the top of `elem` at the\n          // desired position.\n          var elemTop = elem.getBoundingClientRect().top;\n          $window.scrollBy(0, elemTop - offset);\n        }\n      } else {\n        $window.scrollTo(0, 0);\n      }\n    }\n\n    function scroll(hash) {\n      // Allow numeric hashes\n      hash = isString(hash) ? hash : isNumber(hash) ? hash.toString() : $location.hash();\n      var elm;\n\n      // empty hash, scroll to the top of the page\n      if (!hash) scrollTo(null);\n\n      // element with given id\n      else if ((elm = document.getElementById(hash))) scrollTo(elm);\n\n      // first anchor with given name :-D\n      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) scrollTo(elm);\n\n      // no element and hash === 'top', scroll to the top of the page\n      else if (hash === 'top') scrollTo(null);\n    }\n\n    // does not scroll when user clicks on anchor link that is currently on\n    // (no url change, no $location.hash() change), browser native does scroll\n    if (autoScrollingEnabled) {\n      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},\n        function autoScrollWatchAction(newVal, oldVal) {\n          // skip the initial scroll if $location.hash is empty\n          if (newVal === oldVal && newVal === '') return;\n\n          jqLiteDocumentLoaded(function() {\n            $rootScope.$evalAsync(scroll);\n          });\n        });\n    }\n\n    return scroll;\n  }];\n}\n\nvar $animateMinErr = minErr('$animate');\nvar ELEMENT_NODE = 1;\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction extractElementNode(element) {\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction splitClasses(classes) {\n  if (isString(classes)) {\n    classes = classes.split(' ');\n  }\n\n  // Use createMap() to prevent class assumptions involving property names in\n  // Object.prototype\n  var obj = createMap();\n  forEach(classes, function(klass) {\n    // sometimes the split leaves empty string values\n    // incase extra spaces were applied to the options\n    if (klass.length) {\n      obj[klass] = true;\n    }\n  });\n  return obj;\n}\n\n// if any other type of options value besides an Object value is\n// passed into the $animate.method() animation then this helper code\n// will be run which will ignore it. While this patch is not the\n// greatest solution to this, a lot of existing plugins depend on\n// $animate to either call the callback (< 1.2) or return a promise\n// that can be changed. This helper function ensures that the options\n// are wiped clean incase a callback function is provided.\nfunction prepareAnimateOptions(options) {\n  return isObject(options)\n      ? options\n      : {};\n}\n\nvar $$CoreAnimateJsProvider = /** @this */ function() {\n  this.$get = noop;\n};\n\n// this is prefixed with Core since it conflicts with\n// the animateQueueProvider defined in ngAnimate/animateQueue.js\nvar $$CoreAnimateQueueProvider = /** @this */ function() {\n  var postDigestQueue = new NgMap();\n  var postDigestElements = [];\n\n  this.$get = ['$$AnimateRunner', '$rootScope',\n       function($$AnimateRunner,   $rootScope) {\n    return {\n      enabled: noop,\n      on: noop,\n      off: noop,\n      pin: noop,\n\n      push: function(element, event, options, domOperation) {\n        if (domOperation) {\n          domOperation();\n        }\n\n        options = options || {};\n        if (options.from) {\n          element.css(options.from);\n        }\n        if (options.to) {\n          element.css(options.to);\n        }\n\n        if (options.addClass || options.removeClass) {\n          addRemoveClassesPostDigest(element, options.addClass, options.removeClass);\n        }\n\n        var runner = new $$AnimateRunner();\n\n        // since there are no animations to run the runner needs to be\n        // notified that the animation call is complete.\n        runner.complete();\n        return runner;\n      }\n    };\n\n\n    function updateData(data, classes, value) {\n      var changed = false;\n      if (classes) {\n        classes = isString(classes) ? classes.split(' ') :\n                  isArray(classes) ? classes : [];\n        forEach(classes, function(className) {\n          if (className) {\n            changed = true;\n            data[className] = value;\n          }\n        });\n      }\n      return changed;\n    }\n\n    function handleCSSClassChanges() {\n      forEach(postDigestElements, function(element) {\n        var data = postDigestQueue.get(element);\n        if (data) {\n          var existing = splitClasses(element.attr('class'));\n          var toAdd = '';\n          var toRemove = '';\n          forEach(data, function(status, className) {\n            var hasClass = !!existing[className];\n            if (status !== hasClass) {\n              if (status) {\n                toAdd += (toAdd.length ? ' ' : '') + className;\n              } else {\n                toRemove += (toRemove.length ? ' ' : '') + className;\n              }\n            }\n          });\n\n          forEach(element, function(elm) {\n            if (toAdd) {\n              jqLiteAddClass(elm, toAdd);\n            }\n            if (toRemove) {\n              jqLiteRemoveClass(elm, toRemove);\n            }\n          });\n          postDigestQueue.delete(element);\n        }\n      });\n      postDigestElements.length = 0;\n    }\n\n\n    function addRemoveClassesPostDigest(element, add, remove) {\n      var data = postDigestQueue.get(element) || {};\n\n      var classesAdded = updateData(data, add, true);\n      var classesRemoved = updateData(data, remove, false);\n\n      if (classesAdded || classesRemoved) {\n\n        postDigestQueue.set(element, data);\n        postDigestElements.push(element);\n\n        if (postDigestElements.length === 1) {\n          $rootScope.$$postDigest(handleCSSClassChanges);\n        }\n      }\n    }\n  }];\n};\n\n/**\n * @ngdoc provider\n * @name $animateProvider\n *\n * @description\n * Default implementation of $animate that doesn't perform any animations, instead just\n * synchronously performs DOM updates and resolves the returned runner promise.\n *\n * In order to enable animations the `ngAnimate` module has to be loaded.\n *\n * To see the functional implementation check out `src/ngAnimate/animate.js`.\n */\nvar $AnimateProvider = ['$provide', /** @this */ function($provide) {\n  var provider = this;\n  var classNameFilter = null;\n  var customFilter = null;\n\n  this.$$registeredAnimations = Object.create(null);\n\n   /**\n   * @ngdoc method\n   * @name $animateProvider#register\n   *\n   * @description\n   * Registers a new injectable animation factory function. The factory function produces the\n   * animation object which contains callback functions for each event that is expected to be\n   * animated.\n   *\n   *   * `eventFn`: `function(element, ... , doneFunction, options)`\n   *   The element to animate, the `doneFunction` and the options fed into the animation. Depending\n   *   on the type of animation additional arguments will be injected into the animation function. The\n   *   list below explains the function signatures for the different animation methods:\n   *\n   *   - setClass: function(element, addedClasses, removedClasses, doneFunction, options)\n   *   - addClass: function(element, addedClasses, doneFunction, options)\n   *   - removeClass: function(element, removedClasses, doneFunction, options)\n   *   - enter, leave, move: function(element, doneFunction, options)\n   *   - animate: function(element, fromStyles, toStyles, doneFunction, options)\n   *\n   *   Make sure to trigger the `doneFunction` once the animation is fully complete.\n   *\n   * ```js\n   *   return {\n   *     //enter, leave, move signature\n   *     eventFn : function(element, done, options) {\n   *       //code to run the animation\n   *       //once complete, then run done()\n   *       return function endFunction(wasCancelled) {\n   *         //code to cancel the animation\n   *       }\n   *     }\n   *   }\n   * ```\n   *\n   * @param {string} name The name of the animation (this is what the class-based CSS value will be compared to).\n   * @param {Function} factory The factory function that will be executed to return the animation\n   *                           object.\n   */\n  this.register = function(name, factory) {\n    if (name && name.charAt(0) !== '.') {\n      throw $animateMinErr('notcsel', 'Expecting class selector starting with \\'.\\' got \\'{0}\\'.', name);\n    }\n\n    var key = name + '-animation';\n    provider.$$registeredAnimations[name.substr(1)] = key;\n    $provide.factory(key, factory);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#customFilter\n   *\n   * @description\n   * Sets and/or returns the custom filter function that is used to \"filter\" animations, i.e.\n   * determine if an animation is allowed or not. When no filter is specified (the default), no\n   * animation will be blocked. Setting the `customFilter` value will only allow animations for\n   * which the filter function's return value is truthy.\n   *\n   * This allows to easily create arbitrarily complex rules for filtering animations, such as\n   * allowing specific events only, or enabling animations on specific subtrees of the DOM, etc.\n   * Filtering animations can also boost performance for low-powered devices, as well as\n   * applications containing a lot of structural operations.\n   *\n   * <div class=\"alert alert-success\">\n   *   **Best Practice:**\n   *   Keep the filtering function as lean as possible, because it will be called for each DOM\n   *   action (e.g. insertion, removal, class change) performed by \"animation-aware\" directives.\n   *   See {@link guide/animations#which-directives-support-animations- here} for a list of built-in\n   *   directives that support animations.\n   *   Performing computationally expensive or time-consuming operations on each call of the\n   *   filtering function can make your animations sluggish.\n   * </div>\n   *\n   * **Note:** If present, `customFilter` will be checked before\n   * {@link $animateProvider#classNameFilter classNameFilter}.\n   *\n   * @param {Function=} filterFn - The filter function which will be used to filter all animations.\n   *   If a falsy value is returned, no animation will be performed. The function will be called\n   *   with the following arguments:\n   *   - **node** `{DOMElement}` - The DOM element to be animated.\n   *   - **event** `{String}` - The name of the animation event (e.g. `enter`, `leave`, `addClass`\n   *     etc).\n   *   - **options** `{Object}` - A collection of options/styles used for the animation.\n   * @return {Function} The current filter function or `null` if there is none set.\n   */\n  this.customFilter = function(filterFn) {\n    if (arguments.length === 1) {\n      customFilter = isFunction(filterFn) ? filterFn : null;\n    }\n\n    return customFilter;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#classNameFilter\n   *\n   * @description\n   * Sets and/or returns the CSS class regular expression that is checked when performing\n   * an animation. Upon bootstrap the classNameFilter value is not set at all and will\n   * therefore enable $animate to attempt to perform an animation on any element that is triggered.\n   * When setting the `classNameFilter` value, animations will only be performed on elements\n   * that successfully match the filter expression. This in turn can boost performance\n   * for low-powered devices as well as applications containing a lot of structural operations.\n   *\n   * **Note:** If present, `classNameFilter` will be checked after\n   * {@link $animateProvider#customFilter customFilter}. If `customFilter` is present and returns\n   * false, `classNameFilter` will not be checked.\n   *\n   * @param {RegExp=} expression The className expression which will be checked against all animations\n   * @return {RegExp} The current CSS className expression value. If null then there is no expression value\n   */\n  this.classNameFilter = function(expression) {\n    if (arguments.length === 1) {\n      classNameFilter = (expression instanceof RegExp) ? expression : null;\n      if (classNameFilter) {\n        var reservedRegex = new RegExp('[(\\\\s|\\\\/)]' + NG_ANIMATE_CLASSNAME + '[(\\\\s|\\\\/)]');\n        if (reservedRegex.test(classNameFilter.toString())) {\n          classNameFilter = null;\n          throw $animateMinErr('nongcls', '$animateProvider.classNameFilter(regex) prohibits accepting a regex value which matches/contains the \"{0}\" CSS class.', NG_ANIMATE_CLASSNAME);\n        }\n      }\n    }\n    return classNameFilter;\n  };\n\n  this.$get = ['$$animateQueue', function($$animateQueue) {\n    function domInsert(element, parentElement, afterElement) {\n      // if for some reason the previous element was removed\n      // from the dom sometime before this code runs then let's\n      // just stick to using the parent element as the anchor\n      if (afterElement) {\n        var afterNode = extractElementNode(afterElement);\n        if (afterNode && !afterNode.parentNode && !afterNode.previousElementSibling) {\n          afterElement = null;\n        }\n      }\n      if (afterElement) {\n        afterElement.after(element);\n      } else {\n        parentElement.prepend(element);\n      }\n    }\n\n    /**\n     * @ngdoc service\n     * @name $animate\n     * @description The $animate service exposes a series of DOM utility methods that provide support\n     * for animation hooks. The default behavior is the application of DOM operations, however,\n     * when an animation is detected (and animations are enabled), $animate will do the heavy lifting\n     * to ensure that animation runs with the triggered DOM operation.\n     *\n     * By default $animate doesn't trigger any animations. This is because the `ngAnimate` module isn't\n     * included and only when it is active then the animation hooks that `$animate` triggers will be\n     * functional. Once active then all structural `ng-` directives will trigger animations as they perform\n     * their DOM-related operations (enter, leave and move). Other directives such as `ngClass`,\n     * `ngShow`, `ngHide` and `ngMessages` also provide support for animations.\n     *\n     * It is recommended that the`$animate` service is always used when executing DOM-related procedures within directives.\n     *\n     * To learn more about enabling animation support, click here to visit the\n     * {@link ngAnimate ngAnimate module page}.\n     */\n    return {\n      // we don't call it directly since non-existant arguments may\n      // be interpreted as null within the sub enabled function\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#on\n       * @kind function\n       * @description Sets up an event listener to fire whenever the animation event (enter, leave, move, etc...)\n       *    has fired on the given element or among any of its children. Once the listener is fired, the provided callback\n       *    is fired with the following params:\n       *\n       * ```js\n       * $animate.on('enter', container,\n       *    function callback(element, phase) {\n       *      // cool we detected an enter animation within the container\n       *    }\n       * );\n       * ```\n       *\n       * <div class=\"alert alert-warning\">\n       * **Note**: Generally, the events that are fired correspond 1:1 to `$animate` method names,\n       * e.g. {@link ng.$animate#addClass addClass()} will fire `addClass`, and {@link ng.ngClass}\n       * will fire `addClass` if classes are added, and `removeClass` if classes are removed.\n       * However, there are two exceptions:\n       *\n       * <ul>\n       *   <li>if both an {@link ng.$animate#addClass addClass()} and a\n       *   {@link ng.$animate#removeClass removeClass()} action are performed during the same\n       *   animation, the event fired will be `setClass`. This is true even for `ngClass`.</li>\n       *   <li>an {@link ng.$animate#animate animate()} call that adds and removes classes will fire\n       *   the `setClass` event, but if it either removes or adds classes,\n       *   it will fire `animate` instead.</li>\n       * </ul>\n       *\n       * </div>\n       *\n       * @param {string} event the animation event that will be captured (e.g. enter, leave, move, addClass, removeClass, etc...)\n       * @param {DOMElement} container the container element that will capture each of the animation events that are fired on itself\n       *     as well as among its children\n       * @param {Function} callback the callback function that will be fired when the listener is triggered.\n       *\n       * The arguments present in the callback function are:\n       * * `element` - The captured DOM element that the animation was fired on.\n       * * `phase` - The phase of the animation. The two possible phases are **start** (when the animation starts) and **close** (when it ends).\n       * * `data` - an object with these properties:\n       *     * addClass - `{string|null}` - space-separated CSS classes to add to the element\n       *     * removeClass - `{string|null}` - space-separated CSS classes to remove from the element\n       *     * from - `{Object|null}` - CSS properties & values at the beginning of the animation\n       *     * to - `{Object|null}` - CSS properties & values at the end of the animation\n       *\n       * Note that the callback does not trigger a scope digest. Wrap your call into a\n       * {@link $rootScope.Scope#$apply scope.$apply} to propagate changes to the scope.\n       */\n      on: $$animateQueue.on,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#off\n       * @kind function\n       * @description Deregisters an event listener based on the event which has been associated with the provided element. This method\n       * can be used in three different ways depending on the arguments:\n       *\n       * ```js\n       * // remove all the animation event listeners listening for `enter`\n       * $animate.off('enter');\n       *\n       * // remove listeners for all animation events from the container element\n       * $animate.off(container);\n       *\n       * // remove all the animation event listeners listening for `enter` on the given element and its children\n       * $animate.off('enter', container);\n       *\n       * // remove the event listener function provided by `callback` that is set\n       * // to listen for `enter` on the given `container` as well as its children\n       * $animate.off('enter', container, callback);\n       * ```\n       *\n       * @param {string|DOMElement} event|container the animation event (e.g. enter, leave, move,\n       * addClass, removeClass, etc...), or the container element. If it is the element, all other\n       * arguments are ignored.\n       * @param {DOMElement=} container the container element the event listener was placed on\n       * @param {Function=} callback the callback function that was registered as the listener\n       */\n      off: $$animateQueue.off,\n\n      /**\n       * @ngdoc method\n       * @name $animate#pin\n       * @kind function\n       * @description Associates the provided element with a host parent element to allow the element to be animated even if it exists\n       *    outside of the DOM structure of the AngularJS application. By doing so, any animation triggered via `$animate` can be issued on the\n       *    element despite being outside the realm of the application or within another application. Say for example if the application\n       *    was bootstrapped on an element that is somewhere inside of the `<body>` tag, but we wanted to allow for an element to be situated\n       *    as a direct child of `document.body`, then this can be achieved by pinning the element via `$animate.pin(element)`. Keep in mind\n       *    that calling `$animate.pin(element, parentElement)` will not actually insert into the DOM anywhere; it will just create the association.\n       *\n       *    Note that this feature is only active when the `ngAnimate` module is used.\n       *\n       * @param {DOMElement} element the external element that will be pinned\n       * @param {DOMElement} parentElement the host parent element that will be associated with the external element\n       */\n      pin: $$animateQueue.pin,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enabled\n       * @kind function\n       * @description Used to get and set whether animations are enabled or not on the entire application or on an element and its children. This\n       * function can be called in four ways:\n       *\n       * ```js\n       * // returns true or false\n       * $animate.enabled();\n       *\n       * // changes the enabled state for all animations\n       * $animate.enabled(false);\n       * $animate.enabled(true);\n       *\n       * // returns true or false if animations are enabled for an element\n       * $animate.enabled(element);\n       *\n       * // changes the enabled state for an element and its children\n       * $animate.enabled(element, true);\n       * $animate.enabled(element, false);\n       * ```\n       *\n       * @param {DOMElement=} element the element that will be considered for checking/setting the enabled state\n       * @param {boolean=} enabled whether or not the animations will be enabled for the element\n       *\n       * @return {boolean} whether or not animations are enabled\n       */\n      enabled: $$animateQueue.enabled,\n\n      /**\n       * @ngdoc method\n       * @name $animate#cancel\n       * @kind function\n       * @description Cancels the provided animation and applies the end state of the animation.\n       * Note that this does not cancel the underlying operation, e.g. the setting of classes or\n       * adding the element to the DOM.\n       *\n       * @param {animationRunner} animationRunner An animation runner returned by an $animate function.\n       *\n       * @example\n        <example module=\"animationExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"animate-cancel\">\n          <file name=\"app.js\">\n            angular.module('animationExample', ['ngAnimate']).component('cancelExample', {\n              templateUrl: 'template.html',\n              controller: function($element, $animate) {\n                this.runner = null;\n\n                this.addClass = function() {\n                  this.runner = $animate.addClass($element.find('div'), 'red');\n                  var ctrl = this;\n                  this.runner.finally(function() {\n                    ctrl.runner = null;\n                  });\n                };\n\n                this.removeClass = function() {\n                  this.runner = $animate.removeClass($element.find('div'), 'red');\n                  var ctrl = this;\n                  this.runner.finally(function() {\n                    ctrl.runner = null;\n                  });\n                };\n\n                this.cancel = function() {\n                  $animate.cancel(this.runner);\n                };\n              }\n            });\n          </file>\n          <file name=\"template.html\">\n            <p>\n              <button id=\"add\" ng-click=\"$ctrl.addClass()\">Add</button>\n              <button ng-click=\"$ctrl.removeClass()\">Remove</button>\n              <br>\n              <button id=\"cancel\" ng-click=\"$ctrl.cancel()\" ng-disabled=\"!$ctrl.runner\">Cancel</button>\n              <br>\n              <div id=\"target\">CSS-Animated Text</div>\n            </p>\n          </file>\n          <file name=\"index.html\">\n            <cancel-example></cancel-example>\n          </file>\n          <file name=\"style.css\">\n            .red-add, .red-remove {\n              transition: all 4s cubic-bezier(0.250, 0.460, 0.450, 0.940);\n            }\n\n            .red,\n            .red-add.red-add-active {\n              color: #FF0000;\n              font-size: 40px;\n            }\n\n            .red-remove.red-remove-active {\n              font-size: 10px;\n              color: black;\n            }\n\n          </file>\n        </example>\n       */\n      cancel: function(runner) {\n        if (runner.cancel) {\n          runner.cancel();\n        }\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enter\n       * @kind function\n       * @description Inserts the element into the DOM either after the `after` element (if provided) or\n       *   as the first child within the `parent` element and then triggers an animation.\n       *   A promise is returned that will be resolved during the next digest once the animation\n       *   has completed.\n       *\n       * @param {DOMElement} element the element which will be inserted into the DOM\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      enter: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'enter', prepareAnimateOptions(options));\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#move\n       * @kind function\n       * @description Inserts (moves) the element into its new position in the DOM either after\n       *   the `after` element (if provided) or as the first child within the `parent` element\n       *   and then triggers an animation. A promise is returned that will be resolved\n       *   during the next digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be moved into the new DOM position\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      move: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'move', prepareAnimateOptions(options));\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#leave\n       * @kind function\n       * @description Triggers an animation and then removes the element from the DOM.\n       * When the function is called a promise is returned that will be resolved during the next\n       * digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be removed from the DOM\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      leave: function(element, options) {\n        return $$animateQueue.push(element, 'leave', prepareAnimateOptions(options), function() {\n          element.remove();\n        });\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#addClass\n       * @kind function\n       *\n       * @description Triggers an addClass animation surrounding the addition of the provided CSS class(es). Upon\n       *   execution, the addClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element already contains the CSS class or if the class is removed at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} animationRunner the animation runner\n       */\n      addClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addclass, className);\n        return $$animateQueue.push(element, 'addClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#removeClass\n       * @kind function\n       *\n       * @description Triggers a removeClass animation surrounding the removal of the provided CSS class(es). Upon\n       *   execution, the removeClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element does not contain the CSS class or if the class is added at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      removeClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.removeClass = mergeClasses(options.removeClass, className);\n        return $$animateQueue.push(element, 'removeClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#setClass\n       * @kind function\n       *\n       * @description Performs both the addition and removal of a CSS classes on an element and (during the process)\n       *    triggers an animation surrounding the class addition/removal. Much like `$animate.addClass` and\n       *    `$animate.removeClass`, `setClass` will only evaluate the classes being added/removed once a digest has\n       *    passed. Note that class-based animations are treated differently compared to structural animations\n       *    (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *    depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} add the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {string} remove the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      setClass: function(element, add, remove, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addClass, add);\n        options.removeClass = mergeClasses(options.removeClass, remove);\n        return $$animateQueue.push(element, 'setClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#animate\n       * @kind function\n       *\n       * @description Performs an inline animation on the element which applies the provided to and from CSS styles to the element.\n       * If any detected CSS transition, keyframe or JavaScript matches the provided className value, then the animation will take\n       * on the provided styles. For example, if a transition animation is set for the given className, then the provided `from` and\n       * `to` styles will be applied alongside the given transition. If the CSS style provided in `from` does not have a corresponding\n       * style in `to`, the style in `from` is applied immediately, and no animation is run.\n       * If a JavaScript animation is detected then the provided styles will be given in as function parameters into the `animate`\n       * method (or as part of the `options` parameter):\n       *\n       * ```js\n       * ngModule.animation('.my-inline-animation', function() {\n       *   return {\n       *     animate : function(element, from, to, done, options) {\n       *       //animation\n       *       done();\n       *     }\n       *   }\n       * });\n       * ```\n       *\n       * @param {DOMElement} element the element which the CSS styles will be applied to\n       * @param {object} from the from (starting) CSS styles that will be applied to the element and across the animation.\n       * @param {object} to the to (destination) CSS styles that will be applied to the element and across the animation.\n       * @param {string=} className an optional CSS class that will be applied to the element for the duration of the animation. If\n       *    this value is left as empty then a CSS class of `ng-inline-animate` will be applied to the element.\n       *    (Note that if no animation is detected then this value will not be applied to the element.)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      animate: function(element, from, to, className, options) {\n        options = prepareAnimateOptions(options);\n        options.from = options.from ? extend(options.from, from) : from;\n        options.to   = options.to   ? extend(options.to, to)     : to;\n\n        className = className || 'ng-inline-animate';\n        options.tempClasses = mergeClasses(options.tempClasses, className);\n        return $$animateQueue.push(element, 'animate', options);\n      }\n    };\n  }];\n}];\n\nvar $$AnimateAsyncRunFactoryProvider = /** @this */ function() {\n  this.$get = ['$$rAF', function($$rAF) {\n    var waitQueue = [];\n\n    function waitForTick(fn) {\n      waitQueue.push(fn);\n      if (waitQueue.length > 1) return;\n      $$rAF(function() {\n        for (var i = 0; i < waitQueue.length; i++) {\n          waitQueue[i]();\n        }\n        waitQueue = [];\n      });\n    }\n\n    return function() {\n      var passed = false;\n      waitForTick(function() {\n        passed = true;\n      });\n      return function(callback) {\n        if (passed) {\n          callback();\n        } else {\n          waitForTick(callback);\n        }\n      };\n    };\n  }];\n};\n\nvar $$AnimateRunnerFactoryProvider = /** @this */ function() {\n  this.$get = ['$q', '$sniffer', '$$animateAsyncRun', '$$isDocumentHidden', '$timeout',\n       function($q,   $sniffer,   $$animateAsyncRun,   $$isDocumentHidden,   $timeout) {\n\n    var INITIAL_STATE = 0;\n    var DONE_PENDING_STATE = 1;\n    var DONE_COMPLETE_STATE = 2;\n\n    AnimateRunner.chain = function(chain, callback) {\n      var index = 0;\n\n      next();\n      function next() {\n        if (index === chain.length) {\n          callback(true);\n          return;\n        }\n\n        chain[index](function(response) {\n          if (response === false) {\n            callback(false);\n            return;\n          }\n          index++;\n          next();\n        });\n      }\n    };\n\n    AnimateRunner.all = function(runners, callback) {\n      var count = 0;\n      var status = true;\n      forEach(runners, function(runner) {\n        runner.done(onProgress);\n      });\n\n      function onProgress(response) {\n        status = status && response;\n        if (++count === runners.length) {\n          callback(status);\n        }\n      }\n    };\n\n    function AnimateRunner(host) {\n      this.setHost(host);\n\n      var rafTick = $$animateAsyncRun();\n      var timeoutTick = function(fn) {\n        $timeout(fn, 0, false);\n      };\n\n      this._doneCallbacks = [];\n      this._tick = function(fn) {\n        if ($$isDocumentHidden()) {\n          timeoutTick(fn);\n        } else {\n          rafTick(fn);\n        }\n      };\n      this._state = 0;\n    }\n\n    AnimateRunner.prototype = {\n      setHost: function(host) {\n        this.host = host || {};\n      },\n\n      done: function(fn) {\n        if (this._state === DONE_COMPLETE_STATE) {\n          fn();\n        } else {\n          this._doneCallbacks.push(fn);\n        }\n      },\n\n      progress: noop,\n\n      getPromise: function() {\n        if (!this.promise) {\n          var self = this;\n          this.promise = $q(function(resolve, reject) {\n            self.done(function(status) {\n              if (status === false) {\n                reject();\n              } else {\n                resolve();\n              }\n            });\n          });\n        }\n        return this.promise;\n      },\n\n      then: function(resolveHandler, rejectHandler) {\n        return this.getPromise().then(resolveHandler, rejectHandler);\n      },\n\n      'catch': function(handler) {\n        return this.getPromise()['catch'](handler);\n      },\n\n      'finally': function(handler) {\n        return this.getPromise()['finally'](handler);\n      },\n\n      pause: function() {\n        if (this.host.pause) {\n          this.host.pause();\n        }\n      },\n\n      resume: function() {\n        if (this.host.resume) {\n          this.host.resume();\n        }\n      },\n\n      end: function() {\n        if (this.host.end) {\n          this.host.end();\n        }\n        this._resolve(true);\n      },\n\n      cancel: function() {\n        if (this.host.cancel) {\n          this.host.cancel();\n        }\n        this._resolve(false);\n      },\n\n      complete: function(response) {\n        var self = this;\n        if (self._state === INITIAL_STATE) {\n          self._state = DONE_PENDING_STATE;\n          self._tick(function() {\n            self._resolve(response);\n          });\n        }\n      },\n\n      _resolve: function(response) {\n        if (this._state !== DONE_COMPLETE_STATE) {\n          forEach(this._doneCallbacks, function(fn) {\n            fn(response);\n          });\n          this._doneCallbacks.length = 0;\n          this._state = DONE_COMPLETE_STATE;\n        }\n      }\n    };\n\n    return AnimateRunner;\n  }];\n};\n\n/* exported $CoreAnimateCssProvider */\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n * @this\n *\n * @description\n * This is the core version of `$animateCss`. By default, only when the `ngAnimate` is included,\n * then the `$animateCss` service will actually perform animations.\n *\n * Click here {@link ngAnimate.$animateCss to read the documentation for $animateCss}.\n */\nvar $CoreAnimateCssProvider = function() {\n  this.$get = ['$$rAF', '$q', '$$AnimateRunner', function($$rAF, $q, $$AnimateRunner) {\n\n    return function(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = copy(options);\n      }\n\n      // there is no point in applying the styles since\n      // there is no animation that goes on at all in\n      // this version of $animateCss.\n      if (options.cleanupStyles) {\n        options.from = options.to = null;\n      }\n\n      if (options.from) {\n        element.css(options.from);\n        options.from = null;\n      }\n\n      var closed, runner = new $$AnimateRunner();\n      return {\n        start: run,\n        end: run\n      };\n\n      function run() {\n        $$rAF(function() {\n          applyAnimationContents();\n          if (!closed) {\n            runner.complete();\n          }\n          closed = true;\n        });\n        return runner;\n      }\n\n      function applyAnimationContents() {\n        if (options.addClass) {\n          element.addClass(options.addClass);\n          options.addClass = null;\n        }\n        if (options.removeClass) {\n          element.removeClass(options.removeClass);\n          options.removeClass = null;\n        }\n        if (options.to) {\n          element.css(options.to);\n          options.to = null;\n        }\n      }\n    };\n  }];\n};\n\n/* global getHash: true, stripHash: false */\n\nfunction getHash(url) {\n  var index = url.indexOf('#');\n  return index === -1 ? '' : url.substr(index);\n}\n\nfunction trimEmptyHash(url) {\n  return url.replace(/#$/, '');\n}\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n * @requires $log\n * @description\n * This object has two goals:\n *\n * - hide all the global state in the browser caused by the window object\n * - abstract away all the browser specific features and inconsistencies\n *\n * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`\n * service, which can be used for convenient testing of the application without the interaction with\n * the real browser apis.\n */\n/**\n * @param {object} window The global window object.\n * @param {object} document jQuery wrapped document.\n * @param {object} $log window.console or an object with the same interface.\n * @param {object} $sniffer $sniffer service\n */\nfunction Browser(window, document, $log, $sniffer, $$taskTrackerFactory) {\n  var self = this,\n      location = window.location,\n      history = window.history,\n      setTimeout = window.setTimeout,\n      clearTimeout = window.clearTimeout,\n      pendingDeferIds = {},\n      taskTracker = $$taskTrackerFactory($log);\n\n  self.isMock = false;\n\n  //////////////////////////////////////////////////////////////\n  // Task-tracking API\n  //////////////////////////////////////////////////////////////\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = taskTracker.completeTask;\n  self.$$incOutstandingRequestCount = taskTracker.incTaskCount;\n\n  // TODO(vojta): prefix this method with $$ ?\n  self.notifyWhenNoOutstandingRequests = taskTracker.notifyWhenNoPendingTasks;\n\n  //////////////////////////////////////////////////////////////\n  // URL API\n  //////////////////////////////////////////////////////////////\n\n  var cachedState, lastHistoryState,\n      lastBrowserUrl = location.href,\n      baseElement = document.find('base'),\n      pendingLocation = null,\n      getCurrentState = !$sniffer.history ? noop : function getCurrentState() {\n        try {\n          return history.state;\n        } catch (e) {\n          // MSIE can reportedly throw when there is no state (UNCONFIRMED).\n        }\n      };\n\n  cacheState();\n\n  /**\n   * @name $browser#url\n   *\n   * @description\n   * GETTER:\n   * Without any argument, this method just returns current value of `location.href` (with a\n   * trailing `#` stripped of if the hash is empty).\n   *\n   * SETTER:\n   * With at least one argument, this method sets url to new value.\n   * If html5 history api supported, `pushState`/`replaceState` is used, otherwise\n   * `location.href`/`location.replace` is used.\n   * Returns its own instance to allow chaining.\n   *\n   * NOTE: this api is intended for use only by the `$location` service. Please use the\n   * {@link ng.$location $location service} to change url.\n   *\n   * @param {string} url New url (when used as setter)\n   * @param {boolean=} replace Should new url replace current history record?\n   * @param {object=} state State object to use with `pushState`/`replaceState`\n   */\n  self.url = function(url, replace, state) {\n    // In modern browsers `history.state` is `null` by default; treating it separately\n    // from `undefined` would cause `$browser.url('/foo')` to change `history.state`\n    // to undefined via `pushState`. Instead, let's change `undefined` to `null` here.\n    if (isUndefined(state)) {\n      state = null;\n    }\n\n    // Android Browser BFCache causes location, history reference to become stale.\n    if (location !== window.location) location = window.location;\n    if (history !== window.history) history = window.history;\n\n    // setter\n    if (url) {\n      var sameState = lastHistoryState === state;\n\n      // Normalize the inputted URL\n      url = urlResolve(url).href;\n\n      // Don't change anything if previous and current URLs and states match. This also prevents\n      // IE<10 from getting into redirect loop when in LocationHashbangInHtml5Url mode.\n      // See https://github.com/angular/angular.js/commit/ffb2701\n      if (lastBrowserUrl === url && (!$sniffer.history || sameState)) {\n        return self;\n      }\n      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);\n      lastBrowserUrl = url;\n      lastHistoryState = state;\n      // Don't use history API if only the hash changed\n      // due to a bug in IE10/IE11 which leads\n      // to not firing a `hashchange` nor `popstate` event\n      // in some cases (see #9143).\n      if ($sniffer.history && (!sameBase || !sameState)) {\n        history[replace ? 'replaceState' : 'pushState'](state, '', url);\n        cacheState();\n      } else {\n        if (!sameBase) {\n          pendingLocation = url;\n        }\n        if (replace) {\n          location.replace(url);\n        } else if (!sameBase) {\n          location.href = url;\n        } else {\n          location.hash = getHash(url);\n        }\n        if (location.href !== url) {\n          pendingLocation = url;\n        }\n      }\n      if (pendingLocation) {\n        pendingLocation = url;\n      }\n      return self;\n    // getter\n    } else {\n      // - pendingLocation is needed as browsers don't allow to read out\n      //   the new location.href if a reload happened or if there is a bug like in iOS 9 (see\n      //   https://openradar.appspot.com/22186109).\n      return trimEmptyHash(pendingLocation || location.href);\n    }\n  };\n\n  /**\n   * @name $browser#state\n   *\n   * @description\n   * This method is a getter.\n   *\n   * Return history.state or null if history.state is undefined.\n   *\n   * @returns {object} state\n   */\n  self.state = function() {\n    return cachedState;\n  };\n\n  var urlChangeListeners = [],\n      urlChangeInit = false;\n\n  function cacheStateAndFireUrlChange() {\n    pendingLocation = null;\n    fireStateOrUrlChange();\n  }\n\n  // This variable should be used *only* inside the cacheState function.\n  var lastCachedState = null;\n  function cacheState() {\n    // This should be the only place in $browser where `history.state` is read.\n    cachedState = getCurrentState();\n    cachedState = isUndefined(cachedState) ? null : cachedState;\n\n    // Prevent callbacks fo fire twice if both hashchange & popstate were fired.\n    if (equals(cachedState, lastCachedState)) {\n      cachedState = lastCachedState;\n    }\n\n    lastCachedState = cachedState;\n    lastHistoryState = cachedState;\n  }\n\n  function fireStateOrUrlChange() {\n    var prevLastHistoryState = lastHistoryState;\n    cacheState();\n\n    if (lastBrowserUrl === self.url() && prevLastHistoryState === cachedState) {\n      return;\n    }\n\n    lastBrowserUrl = self.url();\n    lastHistoryState = cachedState;\n    forEach(urlChangeListeners, function(listener) {\n      listener(self.url(), cachedState);\n    });\n  }\n\n  /**\n   * @name $browser#onUrlChange\n   *\n   * @description\n   * Register callback function that will be called, when url changes.\n   *\n   * It's only called when the url is changed from outside of AngularJS:\n   * - user types different url into address bar\n   * - user clicks on history (forward/back) button\n   * - user clicks on a link\n   *\n   * It's not called when url is changed by $browser.url() method\n   *\n   * The listener gets called with new url as parameter.\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to monitor url changes in AngularJS apps.\n   *\n   * @param {function(string)} listener Listener function to be called when url changes.\n   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.\n   */\n  self.onUrlChange = function(callback) {\n    // TODO(vojta): refactor to use node's syntax for events\n    if (!urlChangeInit) {\n      // We listen on both (hashchange/popstate) when available, as some browsers don't\n      // fire popstate when user changes the address bar and don't fire hashchange when url\n      // changed by push/replaceState\n\n      // html5 history api - popstate event\n      if ($sniffer.history) jqLite(window).on('popstate', cacheStateAndFireUrlChange);\n      // hashchange event\n      jqLite(window).on('hashchange', cacheStateAndFireUrlChange);\n\n      urlChangeInit = true;\n    }\n\n    urlChangeListeners.push(callback);\n    return callback;\n  };\n\n  /**\n   * @private\n   * Remove popstate and hashchange handler from window.\n   *\n   * NOTE: this api is intended for use only by $rootScope.\n   */\n  self.$$applicationDestroyed = function() {\n    jqLite(window).off('hashchange popstate', cacheStateAndFireUrlChange);\n  };\n\n  /**\n   * Checks whether the url has changed outside of AngularJS.\n   * Needs to be exported to be able to check for changes that have been done in sync,\n   * as hashchange/popstate events fire in async.\n   */\n  self.$$checkUrlChange = fireStateOrUrlChange;\n\n  //////////////////////////////////////////////////////////////\n  // Misc API\n  //////////////////////////////////////////////////////////////\n\n  /**\n   * @name $browser#baseHref\n   *\n   * @description\n   * Returns current <base href>\n   * (always relative - without domain)\n   *\n   * @returns {string} The current base href\n   */\n  self.baseHref = function() {\n    var href = baseElement.attr('href');\n    return href ? href.replace(/^(https?:)?\\/\\/[^/]*/, '') : '';\n  };\n\n  /**\n   * @name $browser#defer\n   * @param {function()} fn A function, who's execution should be deferred.\n   * @param {number=} [delay=0] Number of milliseconds to defer the function execution.\n   * @param {string=} [taskType=DEFAULT_TASK_TYPE] The type of task that is deferred.\n   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.\n   *\n   * @description\n   * Executes a fn asynchronously via `setTimeout(fn, delay)`.\n   *\n   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using\n   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed\n   * via `$browser.defer.flush()`.\n   *\n   */\n  self.defer = function(fn, delay, taskType) {\n    var timeoutId;\n\n    delay = delay || 0;\n    taskType = taskType || taskTracker.DEFAULT_TASK_TYPE;\n\n    taskTracker.incTaskCount(taskType);\n    timeoutId = setTimeout(function() {\n      delete pendingDeferIds[timeoutId];\n      taskTracker.completeTask(fn, taskType);\n    }, delay);\n    pendingDeferIds[timeoutId] = taskType;\n\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.cancel\n   *\n   * @description\n   * Cancels a deferred task identified with `deferId`.\n   *\n   * @param {*} deferId Token returned by the `$browser.defer` function.\n   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n   *                    canceled.\n   */\n  self.defer.cancel = function(deferId) {\n    if (pendingDeferIds.hasOwnProperty(deferId)) {\n      var taskType = pendingDeferIds[deferId];\n      delete pendingDeferIds[deferId];\n      clearTimeout(deferId);\n      taskTracker.completeTask(noop, taskType);\n      return true;\n    }\n    return false;\n  };\n\n}\n\n/** @this */\nfunction $BrowserProvider() {\n  this.$get = ['$window', '$log', '$sniffer', '$document', '$$taskTrackerFactory',\n       function($window,   $log,   $sniffer,   $document,   $$taskTrackerFactory) {\n    return new Browser($window, $document, $log, $sniffer, $$taskTrackerFactory);\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $cacheFactory\n * @this\n *\n * @description\n * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to\n * them.\n *\n * ```js\n *\n *  var cache = $cacheFactory('cacheId');\n *  expect($cacheFactory.get('cacheId')).toBe(cache);\n *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();\n *\n *  cache.put(\"key\", \"value\");\n *  cache.put(\"another key\", \"another value\");\n *\n *  // We've specified no options on creation\n *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});\n *\n * ```\n *\n *\n * @param {string} cacheId Name or id of the newly created cache.\n * @param {object=} options Options object that specifies the cache behavior. Properties:\n *\n *   - `{number=}` `capacity` — turns the cache into LRU cache.\n *\n * @returns {object} Newly created cache object with the following set of methods:\n *\n * - `{object}` `info()` — Returns id, size, and options of cache.\n * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns\n *   it.\n * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.\n * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.\n * - `{void}` `removeAll()` — Removes all cached values.\n * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.\n *\n * @example\n   <example module=\"cacheExampleApp\" name=\"cache-factory\">\n     <file name=\"index.html\">\n       <div ng-controller=\"CacheController\">\n         <input ng-model=\"newCacheKey\" placeholder=\"Key\">\n         <input ng-model=\"newCacheValue\" placeholder=\"Value\">\n         <button ng-click=\"put(newCacheKey, newCacheValue)\">Cache</button>\n\n         <p ng-if=\"keys.length\">Cached Values</p>\n         <div ng-repeat=\"key in keys\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"cache.get(key)\"></b>\n         </div>\n\n         <p>Cache Info</p>\n         <div ng-repeat=\"(key, value) in cache.info()\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"value\"></b>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('cacheExampleApp', []).\n         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {\n           $scope.keys = [];\n           $scope.cache = $cacheFactory('cacheId');\n           $scope.put = function(key, value) {\n             if (angular.isUndefined($scope.cache.get(key))) {\n               $scope.keys.push(key);\n             }\n             $scope.cache.put(key, angular.isUndefined(value) ? null : value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       p {\n         margin: 10px 0 3px;\n       }\n     </file>\n   </example>\n */\nfunction $CacheFactoryProvider() {\n\n  this.$get = function() {\n    var caches = {};\n\n    function cacheFactory(cacheId, options) {\n      if (cacheId in caches) {\n        throw minErr('$cacheFactory')('iid', 'CacheId \\'{0}\\' is already taken!', cacheId);\n      }\n\n      var size = 0,\n          stats = extend({}, options, {id: cacheId}),\n          data = createMap(),\n          capacity = (options && options.capacity) || Number.MAX_VALUE,\n          lruHash = createMap(),\n          freshEnd = null,\n          staleEnd = null;\n\n      /**\n       * @ngdoc type\n       * @name $cacheFactory.Cache\n       *\n       * @description\n       * A cache object used to store and retrieve data, primarily used by\n       * {@link $templateRequest $templateRequest} and the {@link ng.directive:script script}\n       * directive to cache templates and other data.\n       *\n       * ```js\n       *  angular.module('superCache')\n       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {\n       *      return $cacheFactory('super-cache');\n       *    }]);\n       * ```\n       *\n       * Example test:\n       *\n       * ```js\n       *  it('should behave like a cache', inject(function(superCache) {\n       *    superCache.put('key', 'value');\n       *    superCache.put('another key', 'another value');\n       *\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 2\n       *    });\n       *\n       *    superCache.remove('another key');\n       *    expect(superCache.get('another key')).toBeUndefined();\n       *\n       *    superCache.removeAll();\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 0\n       *    });\n       *  }));\n       * ```\n       */\n      return (caches[cacheId] = {\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#put\n         * @kind function\n         *\n         * @description\n         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be\n         * retrieved later, and incrementing the size of the cache if the key was not already\n         * present in the cache. If behaving like an LRU cache, it will also remove stale\n         * entries from the set.\n         *\n         * It will not insert undefined values into the cache.\n         *\n         * @param {string} key the key under which the cached data is stored.\n         * @param {*} value the value to store alongside the key. If it is undefined, the key\n         *    will not be stored.\n         * @returns {*} the value stored.\n         */\n        put: function(key, value) {\n          if (isUndefined(value)) return;\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});\n\n            refresh(lruEntry);\n          }\n\n          if (!(key in data)) size++;\n          data[key] = value;\n\n          if (size > capacity) {\n            this.remove(staleEnd.key);\n          }\n\n          return value;\n        },\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#get\n         * @kind function\n         *\n         * @description\n         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the data to be retrieved\n         * @returns {*} the value stored.\n         */\n        get: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            refresh(lruEntry);\n          }\n\n          return data[key];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#remove\n         * @kind function\n         *\n         * @description\n         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the entry to be removed\n         */\n        remove: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            if (lruEntry === freshEnd) freshEnd = lruEntry.p;\n            if (lruEntry === staleEnd) staleEnd = lruEntry.n;\n            link(lruEntry.n,lruEntry.p);\n\n            delete lruHash[key];\n          }\n\n          if (!(key in data)) return;\n\n          delete data[key];\n          size--;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#removeAll\n         * @kind function\n         *\n         * @description\n         * Clears the cache object of any entries.\n         */\n        removeAll: function() {\n          data = createMap();\n          size = 0;\n          lruHash = createMap();\n          freshEnd = staleEnd = null;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#destroy\n         * @kind function\n         *\n         * @description\n         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,\n         * removing it from the {@link $cacheFactory $cacheFactory} set.\n         */\n        destroy: function() {\n          data = null;\n          stats = null;\n          lruHash = null;\n          delete caches[cacheId];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#info\n         * @kind function\n         *\n         * @description\n         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.\n         *\n         * @returns {object} an object with the following properties:\n         *   <ul>\n         *     <li>**id**: the id of the cache instance</li>\n         *     <li>**size**: the number of entries kept in the cache instance</li>\n         *     <li>**...**: any additional properties from the options object when creating the\n         *       cache.</li>\n         *   </ul>\n         */\n        info: function() {\n          return extend({}, stats, {size: size});\n        }\n      });\n\n\n      /**\n       * makes the `entry` the freshEnd of the LRU linked list\n       */\n      function refresh(entry) {\n        if (entry !== freshEnd) {\n          if (!staleEnd) {\n            staleEnd = entry;\n          } else if (staleEnd === entry) {\n            staleEnd = entry.n;\n          }\n\n          link(entry.n, entry.p);\n          link(entry, freshEnd);\n          freshEnd = entry;\n          freshEnd.n = null;\n        }\n      }\n\n\n      /**\n       * bidirectionally links two entries of the LRU linked list\n       */\n      function link(nextEntry, prevEntry) {\n        if (nextEntry !== prevEntry) {\n          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify\n          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify\n        }\n      }\n    }\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#info\n   *\n   * @description\n   * Get information about all the caches that have been created\n   *\n   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`\n   */\n    cacheFactory.info = function() {\n      var info = {};\n      forEach(caches, function(cache, cacheId) {\n        info[cacheId] = cache.info();\n      });\n      return info;\n    };\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#get\n   *\n   * @description\n   * Get access to a cache object by the `cacheId` used when it was created.\n   *\n   * @param {string} cacheId Name or id of a cache to access.\n   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.\n   */\n    cacheFactory.get = function(cacheId) {\n      return caches[cacheId];\n    };\n\n\n    return cacheFactory;\n  };\n}\n\n/**\n * @ngdoc service\n * @name $templateCache\n * @this\n *\n * @description\n * `$templateCache` is a {@link $cacheFactory.Cache Cache object} created by the\n * {@link ng.$cacheFactory $cacheFactory}.\n *\n * The first time a template is used, it is loaded in the template cache for quick retrieval. You\n * can load templates directly into the cache in a `script` tag, by using {@link $templateRequest},\n * or by consuming the `$templateCache` service directly.\n *\n * Adding via the `script` tag:\n *\n * ```html\n *   <script type=\"text/ng-template\" id=\"templateId.html\">\n *     <p>This is the content of the template</p>\n *   </script>\n * ```\n *\n * **Note:** the `script` tag containing the template does not need to be included in the `head` of\n * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (e.g.\n * element with {@link ngApp} attribute), otherwise the template will be ignored.\n *\n * Adding via the `$templateCache` service:\n *\n * ```js\n * var myApp = angular.module('myApp', []);\n * myApp.run(function($templateCache) {\n *   $templateCache.put('templateId.html', 'This is the content of the template');\n * });\n * ```\n *\n * To retrieve the template later, simply use it in your component:\n * ```js\n * myApp.component('myComponent', {\n *    templateUrl: 'templateId.html'\n * });\n * ```\n *\n * or get it via the `$templateCache` service:\n * ```js\n * $templateCache.get('templateId.html')\n * ```\n *\n */\nfunction $TemplateCacheProvider() {\n  this.$get = ['$cacheFactory', function($cacheFactory) {\n    return $cacheFactory('templates');\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables like document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!\n *\n * DOM-related variables:\n *\n * - \"node\" - DOM Node\n * - \"element\" - DOM Element or Node\n * - \"$node\" or \"$element\" - jqLite-wrapped node or element\n *\n *\n * Compiler related stuff:\n *\n * - \"linkFn\" - linking fn of a single directive\n * - \"nodeLinkFn\" - function that aggregates all linking fns for a particular node\n * - \"childLinkFn\" -  function that aggregates all linking fns for child nodes of a particular node\n * - \"compositeLinkFn\" - function that aggregates all linking fns for a compilation root (nodeList)\n */\n\n\n/**\n * @ngdoc service\n * @name $compile\n * @kind function\n *\n * @description\n * Compiles an HTML string or DOM into a template and produces a template function, which\n * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.\n *\n * The compilation is a process of walking the DOM tree and matching DOM elements to\n * {@link ng.$compileProvider#directive directives}.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** This document is an in-depth reference of all directive options.\n * For a gentle introduction to directives with examples of common use cases,\n * see the {@link guide/directive directive guide}.\n * </div>\n *\n * ## Comprehensive Directive API\n *\n * There are many different options for a directive.\n *\n * The difference resides in the return value of the factory function.\n * You can either return a {@link $compile#directive-definition-object Directive Definition Object (see below)}\n * that defines the directive properties, or just the `postLink` function (all other properties will have\n * the default values).\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's recommended to use the \"directive definition object\" form.\n * </div>\n *\n * Here's an example directive declared with a Directive Definition Object:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       {@link $compile#-priority- priority}: 0,\n *       {@link $compile#-template- template}: '<div></div>', // or // function(tElement, tAttrs) { ... },\n *       // or\n *       // {@link $compile#-templateurl- templateUrl}: 'directive.html', // or // function(tElement, tAttrs) { ... },\n *       {@link $compile#-transclude- transclude}: false,\n *       {@link $compile#-restrict- restrict}: 'A',\n *       {@link $compile#-templatenamespace- templateNamespace}: 'html',\n *       {@link $compile#-scope- scope}: false,\n *       {@link $compile#-controller- controller}: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },\n *       {@link $compile#-controlleras- controllerAs}: 'stringIdentifier',\n *       {@link $compile#-bindtocontroller- bindToController}: false,\n *       {@link $compile#-require- require}: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],\n *       {@link $compile#-multielement- multiElement}: false,\n *       {@link $compile#-compile- compile}: function compile(tElement, tAttrs, transclude) {\n *         return {\n *            {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *            {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *         }\n *         // or\n *         // return function postLink( ... ) { ... }\n *       },\n *       // or\n *       // {@link $compile#-link- link}: {\n *       //  {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *       //  {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *       // }\n *       // or\n *       // {@link $compile#-link- link}: function postLink( ... ) { ... }\n *     };\n *     return directiveDefinitionObject;\n *   });\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Any unspecified options will use the default value. You can see the default values below.\n * </div>\n *\n * Therefore the above can be simplified as:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       link: function postLink(scope, iElement, iAttrs) { ... }\n *     };\n *     return directiveDefinitionObject;\n *     // or\n *     // return function postLink(scope, iElement, iAttrs) { ... }\n *   });\n * ```\n *\n * ### Life-cycle hooks\n * Directive controllers can provide the following methods that are called by AngularJS at points in the life-cycle of the\n * directive:\n * * `$onInit()` - Called on each controller after all the controllers on an element have been constructed and\n *   had their bindings initialized (and before the pre &amp; post linking functions for the directives on\n *   this element). This is a good place to put initialization code for your controller.\n * * `$onChanges(changesObj)` - Called whenever one-way (`<`) or interpolation (`@`) bindings are updated. The\n *   `changesObj` is a hash whose keys are the names of the bound properties that have changed, and the values are an\n *   object of the form `{ currentValue, previousValue, isFirstChange() }`. Use this hook to trigger updates within a\n *   component such as cloning the bound value to prevent accidental mutation of the outer value. Note that this will\n *   also be called when your bindings are initialized.\n * * `$doCheck()` - Called on each turn of the digest cycle. Provides an opportunity to detect and act on\n *   changes. Any actions that you wish to take in response to the changes that you detect must be\n *   invoked from this hook; implementing this has no effect on when `$onChanges` is called. For example, this hook\n *   could be useful if you wish to perform a deep equality check, or to check a Date object, changes to which would not\n *   be detected by AngularJS's change detector and thus not trigger `$onChanges`. This hook is invoked with no arguments;\n *   if detecting changes, you must store the previous value(s) for comparison to the current values.\n * * `$onDestroy()` - Called on a controller when its containing scope is destroyed. Use this hook for releasing\n *   external resources, watches and event handlers. Note that components have their `$onDestroy()` hooks called in\n *   the same order as the `$scope.$broadcast` events are triggered, which is top down. This means that parent\n *   components will have their `$onDestroy()` hook called before child components.\n * * `$postLink()` - Called after this controller's element and its children have been linked. Similar to the post-link\n *   function this hook can be used to set up DOM event handlers and do direct DOM manipulation.\n *   Note that child elements that contain `templateUrl` directives will not have been compiled and linked since\n *   they are waiting for their template to load asynchronously and their own compilation and linking has been\n *   suspended until that occurs.\n *\n * #### Comparison with life-cycle hooks in the new Angular\n * The new Angular also uses life-cycle hooks for its components. While the AngularJS life-cycle hooks are similar there are\n * some differences that you should be aware of, especially when it comes to moving your code from AngularJS to Angular:\n *\n * * AngularJS hooks are prefixed with `$`, such as `$onInit`. Angular hooks are prefixed with `ng`, such as `ngOnInit`.\n * * AngularJS hooks can be defined on the controller prototype or added to the controller inside its constructor.\n *   In Angular you can only define hooks on the prototype of the Component class.\n * * Due to the differences in change-detection, you may get many more calls to `$doCheck` in AngularJS than you would to\n *   `ngDoCheck` in Angular.\n * * Changes to the model inside `$doCheck` will trigger new turns of the digest loop, which will cause the changes to be\n *   propagated throughout the application.\n *   Angular does not allow the `ngDoCheck` hook to trigger a change outside of the component. It will either throw an\n *   error or do nothing depending upon the state of `enableProdMode()`.\n *\n * #### Life-cycle hook examples\n *\n * This example shows how you can check for mutations to a Date object even though the identity of the object\n * has not changed.\n *\n * <example name=\"doCheckDateExample\" module=\"do-check-module\">\n *   <file name=\"app.js\">\n *     angular.module('do-check-module', [])\n *       .component('app', {\n *         template:\n *           'Month: <input ng-model=\"$ctrl.month\" ng-change=\"$ctrl.updateDate()\">' +\n *           'Date: {{ $ctrl.date }}' +\n *           '<test date=\"$ctrl.date\"></test>',\n *         controller: function() {\n *           this.date = new Date();\n *           this.month = this.date.getMonth();\n *           this.updateDate = function() {\n *             this.date.setMonth(this.month);\n *           };\n *         }\n *       })\n *       .component('test', {\n *         bindings: { date: '<' },\n *         template:\n *           '<pre>{{ $ctrl.log | json }}</pre>',\n *         controller: function() {\n *           var previousValue;\n *           this.log = [];\n *           this.$doCheck = function() {\n *             var currentValue = this.date && this.date.valueOf();\n *             if (previousValue !== currentValue) {\n *               this.log.push('doCheck: date mutated: ' + this.date);\n *               previousValue = currentValue;\n *             }\n *           };\n *         }\n *       });\n *   </file>\n *   <file name=\"index.html\">\n *     <app></app>\n *   </file>\n * </example>\n *\n * This example show how you might use `$doCheck` to trigger changes in your component's inputs even if the\n * actual identity of the component doesn't change. (Be aware that cloning and deep equality checks on large\n * arrays or objects can have a negative impact on your application performance.)\n *\n * <example name=\"doCheckArrayExample\" module=\"do-check-module\">\n *   <file name=\"index.html\">\n *     <div ng-init=\"items = []\">\n *       <button ng-click=\"items.push(items.length)\">Add Item</button>\n *       <button ng-click=\"items = []\">Reset Items</button>\n *       <pre>{{ items }}</pre>\n *       <test items=\"items\"></test>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *      angular.module('do-check-module', [])\n *        .component('test', {\n *          bindings: { items: '<' },\n *          template:\n *            '<pre>{{ $ctrl.log | json }}</pre>',\n *          controller: function() {\n *            this.log = [];\n *\n *            this.$doCheck = function() {\n *              if (this.items_ref !== this.items) {\n *                this.log.push('doCheck: items changed');\n *                this.items_ref = this.items;\n *              }\n *              if (!angular.equals(this.items_clone, this.items)) {\n *                this.log.push('doCheck: items mutated');\n *                this.items_clone = angular.copy(this.items);\n *              }\n *            };\n *          }\n *        });\n *   </file>\n * </example>\n *\n *\n * ### Directive Definition Object\n *\n * The directive definition object provides instructions to the {@link ng.$compile\n * compiler}. The attributes are:\n *\n * #### `multiElement`\n * When this property is set to true (default is `false`), the HTML compiler will collect DOM nodes between\n * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them\n * together as the directive elements. It is recommended that this feature be used on directives\n * which are not strictly behavioral (such as {@link ngClick}), and which\n * do not manipulate or replace child nodes (such as {@link ngInclude}).\n *\n * #### `priority`\n * When there are multiple directives defined on a single DOM element, sometimes it\n * is necessary to specify the order in which the directives are applied. The `priority` is used\n * to sort the directives before their `compile` functions get called. Priority is defined as a\n * number. Directives with greater numerical `priority` are compiled first. Pre-link functions\n * are also run in priority order, but post-link functions are run in reverse order. The order\n * of directives with the same priority is undefined. The default priority is `0`.\n *\n * #### `terminal`\n * If set to true then the current `priority` will be the last set of directives\n * which will execute (any directives at the current priority will still execute\n * as the order of execution on same `priority` is undefined). Note that expressions\n * and other directives used in the directive's template will also be excluded from execution.\n *\n * #### `scope`\n * The scope property can be `false`, `true`, or an object:\n *\n * * **`false` (default):** No scope will be created for the directive. The directive will use its\n * parent's scope.\n *\n * * **`true`:** A new child scope that prototypically inherits from its parent will be created for\n * the directive's element. If multiple directives on the same element request a new scope,\n * only one new scope is created.\n *\n * * **`{...}` (an object hash):** A new \"isolate\" scope is created for the directive's template.\n * The 'isolate' scope differs from normal scope in that it does not prototypically\n * inherit from its parent scope. This is useful when creating reusable components, which should not\n * accidentally read or modify data in the parent scope. Note that an isolate scope\n * directive without a `template` or `templateUrl` will not apply the isolate scope\n * to its children elements.\n *\n * The 'isolate' scope object hash defines a set of local scope properties derived from attributes on the\n * directive's element. These local properties are useful for aliasing values for templates. The keys in\n * the object hash map to the name of the property on the isolate scope; the values define how the property\n * is bound to the parent scope, via matching attributes on the directive's element:\n *\n * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is\n *   always a string since DOM attributes are strings. If no `attr` name is specified then the\n *   attribute name is assumed to be the same as the local name. Given `<my-component\n *   my-attr=\"hello {{name}}\">` and the isolate scope definition `scope: { localName:'@myAttr' }`,\n *   the directive's scope property `localName` will reflect the interpolated value of `hello\n *   {{name}}`. As the `name` attribute changes so will the `localName` property on the directive's\n *   scope. The `name` is read from the parent scope (not the directive's scope).\n *\n * * `=` or `=attr` - set up a bidirectional binding between a local scope property and an expression\n *   passed via the attribute `attr`. The expression is evaluated in the context of the parent scope.\n *   If no `attr` name is specified then the attribute name is assumed to be the same as the local\n *   name. Given `<my-component my-attr=\"parentModel\">` and the isolate scope definition `scope: {\n *   localModel: '=myAttr' }`, the property `localModel` on the directive's scope will reflect the\n *   value of `parentModel` on the parent scope. Changes to `parentModel` will be reflected in\n *   `localModel` and vice versa. If the binding expression is non-assignable, or if the attribute\n *   isn't  optional and doesn't exist, an exception\n *   ({@link error/$compile/nonassign `$compile:nonassign`}) will be thrown upon discovering changes\n *   to the local value, since it will be impossible to sync them back to the parent scope.\n *\n *   By default, the {@link ng.$rootScope.Scope#$watch `$watch`}\n *   method is used for tracking changes, and the equality check is based on object identity.\n *   However, if an object literal or an array literal is passed as the binding expression, the\n *   equality check is done by value (using the {@link angular.equals} function). It's also possible\n *   to watch the evaluated value shallowly with {@link ng.$rootScope.Scope#$watchCollection\n *   `$watchCollection`}: use `=*` or `=*attr`\n *\n  * * `<` or `<attr` - set up a one-way (one-directional) binding between a local scope property and an\n *   expression passed via the attribute `attr`. The expression is evaluated in the context of the\n *   parent scope. If no `attr` name is specified then the attribute name is assumed to be the same as the\n *   local name.\n *\n *   For example, given `<my-component my-attr=\"parentModel\">` and directive definition of\n *   `scope: { localModel:'<myAttr' }`, then the isolated scope property `localModel` will reflect the\n *   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected\n *   in `localModel`, but changes in `localModel` will not reflect in `parentModel`. There are however\n *   two caveats:\n *     1. one-way binding does not copy the value from the parent to the isolate scope, it simply\n *     sets the same value. That means if your bound value is an object, changes to its properties\n *     in the isolated scope will be reflected in the parent scope (because both reference the same object).\n *     2. one-way binding watches changes to the **identity** of the parent value. That means the\n *     {@link ng.$rootScope.Scope#$watch `$watch`} on the parent value only fires if the reference\n *     to the value has changed. In most cases, this should not be of concern, but can be important\n *     to know if you one-way bind to an object, and then replace that object in the isolated scope.\n *     If you now change a property of the object in your parent scope, the change will not be\n *     propagated to the isolated scope, because the identity of the object on the parent scope\n *     has not changed. Instead you must assign a new object.\n *\n *   One-way binding is useful if you do not plan to propagate changes to your isolated scope bindings\n *   back to the parent. However, it does not make this completely impossible.\n *\n *   By default, the {@link ng.$rootScope.Scope#$watch `$watch`}\n *   method is used for tracking changes, and the equality check is based on object identity.\n *   It's also possible to watch the evaluated value shallowly with\n *   {@link ng.$rootScope.Scope#$watchCollection `$watchCollection`}: use `<*` or `<*attr`\n *\n * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope. If\n *   no `attr` name is specified then the attribute name is assumed to be the same as the local name.\n *   Given `<my-component my-attr=\"count = count + value\">` and the isolate scope definition `scope: {\n *   localFn:'&myAttr' }`, the isolate scope property `localFn` will point to a function wrapper for\n *   the `count = count + value` expression. Often it's desirable to pass data from the isolated scope\n *   via an expression to the parent scope. This can be done by passing a map of local variable names\n *   and values into the expression wrapper fn. For example, if the expression is `increment(amount)`\n *   then we can specify the amount value by calling the `localFn` as `localFn({amount: 22})`.\n *\n * All 4 kinds of bindings (`@`, `=`, `<`, and `&`) can be made optional by adding `?` to the expression.\n * The marker must come after the mode and before the attribute name.\n * See the {@link error/$compile/iscp Invalid Isolate Scope Definition error} for definition examples.\n * This is useful to refine the interface directives provide.\n * One subtle difference between optional and non-optional happens **when the binding attribute is not\n * set**:\n * - the binding is optional: the property will not be defined\n * - the binding is not optional: the property is defined\n *\n * ```js\n *app.directive('testDir', function() {\n    return {\n      scope: {\n        notoptional: '=',\n        optional: '=?',\n      },\n      bindToController: true,\n      controller: function() {\n        this.$onInit = function() {\n          console.log(this.hasOwnProperty('notoptional')) // true\n          console.log(this.hasOwnProperty('optional')) // false\n        }\n      }\n    }\n  })\n *```\n *\n *\n * ##### Combining directives with different scope defintions\n *\n * In general it's possible to apply more than one directive to one element, but there might be limitations\n * depending on the type of scope required by the directives. The following points will help explain these limitations.\n * For simplicity only two directives are taken into account, but it is also applicable for several directives:\n *\n * * **no scope** + **no scope** => Two directives which don't require their own scope will use their parent's scope\n * * **child scope** + **no scope** =>  Both directives will share one single child scope\n * * **child scope** + **child scope** =>  Both directives will share one single child scope\n * * **isolated scope** + **no scope** =>  The isolated directive will use it's own created isolated scope. The other directive will use\n * its parent's scope\n * * **isolated scope** + **child scope** =>  **Won't work!** Only one scope can be related to one element. Therefore these directives cannot\n * be applied to the same element.\n * * **isolated scope** + **isolated scope**  =>  **Won't work!** Only one scope can be related to one element. Therefore these directives\n * cannot be applied to the same element.\n *\n *\n * #### `bindToController`\n * This property is used to bind scope properties directly to the controller. It can be either\n * `true` or an object hash with the same format as the `scope` property.\n *\n * When an isolate scope is used for a directive (see above), `bindToController: true` will\n * allow a component to have its properties bound to the controller, rather than to scope.\n *\n * After the controller is instantiated, the initial values of the isolate scope bindings will be bound to the controller\n * properties. You can access these bindings once they have been initialized by providing a controller method called\n * `$onInit`, which is called after all the controllers on an element have been constructed and had their bindings\n * initialized.\n *\n * It is also possible to set `bindToController` to an object hash with the same format as the `scope` property.\n * This will set up the scope bindings to the controller directly. Note that `scope` can still be used\n * to define which kind of scope is created. By default, no scope is created. Use `scope: {}` to create an isolate\n * scope (useful for component directives).\n *\n * If both `bindToController` and `scope` are defined and have object hashes, `bindToController` overrides `scope`.\n *\n *\n * #### `controller`\n * Controller constructor function. The controller is instantiated before the\n * pre-linking phase and can be accessed by other directives (see\n * `require` attribute). This allows the directives to communicate with each other and augment\n * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:\n *\n * * `$scope` - Current scope associated with the element\n * * `$element` - Current element\n * * `$attrs` - Current attributes object for the element\n * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:\n *   `function([scope], cloneLinkingFn, futureParentElement, slotName)`:\n *    * `scope`: (optional) override the scope.\n *    * `cloneLinkingFn`: (optional) argument to create clones of the original transcluded content.\n *    * `futureParentElement` (optional):\n *        * defines the parent to which the `cloneLinkingFn` will add the cloned elements.\n *        * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.\n *        * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)\n *          and when the `cloneLinkingFn` is passed,\n *          as those elements need to created and cloned in a special way when they are defined outside their\n *          usual containers (e.g. like `<svg>`).\n *        * See also the `directive.templateNamespace` property.\n *    * `slotName`: (optional) the name of the slot to transclude. If falsy (e.g. `null`, `undefined` or `''`)\n *      then the default transclusion is provided.\n *    The `$transclude` function also has a method on it, `$transclude.isSlotFilled(slotName)`, which returns\n *    `true` if the specified slot contains content (i.e. one or more DOM nodes).\n *\n * #### `require`\n * Require another directive and inject its controller as the fourth argument to the linking function. The\n * `require` property can be a string, an array or an object:\n * * a **string** containing the name of the directive to pass to the linking function\n * * an **array** containing the names of directives to pass to the linking function. The argument passed to the\n * linking function will be an array of controllers in the same order as the names in the `require` property\n * * an **object** whose property values are the names of the directives to pass to the linking function. The argument\n * passed to the linking function will also be an object with matching keys, whose values will hold the corresponding\n * controllers.\n *\n * If the `require` property is an object and `bindToController` is truthy, then the required controllers are\n * bound to the controller using the keys of the `require` property. This binding occurs after all the controllers\n * have been constructed but before `$onInit` is called.\n * If the name of the required controller is the same as the local name (the key), the name can be\n * omitted. For example, `{parentDir: '^^'}` is equivalent to `{parentDir: '^^parentDir'}`.\n * See the {@link $compileProvider#component} helper for an example of how this can be used.\n * If no such required directive(s) can be found, or if the directive does not have a controller, then an error is\n * raised (unless no link function is specified and the required controllers are not being bound to the directive\n * controller, in which case error checking is skipped). The name can be prefixed with:\n *\n * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.\n * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.\n * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.\n * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.\n * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass\n *   `null` to the `link` fn if not found.\n * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass\n *   `null` to the `link` fn if not found.\n *\n *\n * #### `controllerAs`\n * Identifier name for a reference to the controller in the directive's scope.\n * This allows the controller to be referenced from the directive template. This is especially\n * useful when a directive is used as component, i.e. with an `isolate` scope. It's also possible\n * to use it in a directive without an `isolate` / `new` scope, but you need to be aware that the\n * `controllerAs` reference might overwrite a property that already exists on the parent scope.\n *\n *\n * #### `restrict`\n * String of subset of `EACM` which restricts the directive to a specific directive\n * declaration style. If omitted, the defaults (elements and attributes) are used.\n *\n * * `E` - Element name (default): `<my-directive></my-directive>`\n * * `A` - Attribute (default): `<div my-directive=\"exp\"></div>`\n * * `C` - Class: `<div class=\"my-directive: exp;\"></div>`\n * * `M` - Comment: `<!-- directive: my-directive exp -->`\n *\n *\n * #### `templateNamespace`\n * String representing the document type used by the markup in the template.\n * AngularJS needs this information as those elements need to be created and cloned\n * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.\n *\n * * `html` - All root nodes in the template are HTML. Root nodes may also be\n *   top-level elements such as `<svg>` or `<math>`.\n * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).\n * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).\n *\n * If no `templateNamespace` is specified, then the namespace is considered to be `html`.\n *\n * #### `template`\n * HTML markup that may:\n * * Replace the contents of the directive's element (default).\n * * Replace the directive's element itself (if `replace` is true - DEPRECATED).\n * * Wrap the contents of the directive's element (if `transclude` is true).\n *\n * Value may be:\n *\n * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.\n * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`\n *   function api below) and returns a string value.\n *\n *\n * #### `templateUrl`\n * This is similar to `template` but the template is loaded from the specified URL, asynchronously.\n *\n * Because template loading is asynchronous the compiler will suspend compilation of directives on that element\n * for later when the template has been resolved.  In the meantime it will continue to compile and link\n * sibling and parent elements as though this element had not contained any directives.\n *\n * The compiler does not suspend the entire compilation to wait for templates to be loaded because this\n * would result in the whole app \"stalling\" until all templates are loaded asynchronously - even in the\n * case when only one deeply nested directive has `templateUrl`.\n *\n * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}.\n *\n * You can specify `templateUrl` as a string representing the URL or as a function which takes two\n * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns\n * a string value representing the url.  In either case, the template URL is passed through {@link\n * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.\n *\n *\n * #### `replace`\n * <div class=\"alert alert-danger\">\n * **Note:** `replace` is deprecated in AngularJS and has been removed in the new Angular (v2+).\n * </div>\n *\n * Specifies what the template should replace. Defaults to `false`.\n *\n * * `true` - the template will replace the directive's element.\n * * `false` - the template will replace the contents of the directive's element.\n *\n * The replacement process migrates all of the attributes / classes from the old element to the new\n * one. See the {@link guide/directive#template-expanding-directive\n * Directives Guide} for an example.\n *\n * There are very few scenarios where element replacement is required for the application function,\n * the main one being reusable custom components that are used within SVG contexts\n * (because SVG doesn't work with custom elements in the DOM tree).\n *\n * #### `transclude`\n * Extract the contents of the element where the directive appears and make it available to the directive.\n * The contents are compiled and provided to the directive as a **transclusion function**. See the\n * {@link $compile#transclusion Transclusion} section below.\n *\n *\n * #### `compile`\n *\n * ```js\n *   function compile(tElement, tAttrs, transclude) { ... }\n * ```\n *\n * The compile function deals with transforming the template DOM. Since most directives do not do\n * template transformation, it is not used often. The compile function takes the following arguments:\n *\n *   * `tElement` - template element - The element where the directive has been declared. It is\n *     safe to do template transformation on the element and child elements only.\n *\n *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared\n *     between all directive compile functions.\n *\n *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`\n *\n * <div class=\"alert alert-warning\">\n * **Note:** The template instance and the link instance may be different objects if the template has\n * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that\n * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration\n * should be done in a linking function rather than in a compile function.\n * </div>\n\n * <div class=\"alert alert-warning\">\n * **Note:** The compile function cannot handle directives that recursively use themselves in their\n * own templates or compile functions. Compiling these directives results in an infinite loop and\n * stack overflow errors.\n *\n * This can be avoided by manually using `$compile` in the postLink function to imperatively compile\n * a directive's template instead of relying on automatic template compilation via `template` or\n * `templateUrl` declaration or manual compilation inside the compile function.\n * </div>\n *\n * <div class=\"alert alert-danger\">\n * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it\n *   e.g. does not know about the right outer scope. Please use the transclude function that is passed\n *   to the link function instead.\n * </div>\n\n * A compile function can have a return value which can be either a function or an object.\n *\n * * returning a (post-link) function - is equivalent to registering the linking function via the\n *   `link` property of the config object when the compile function is empty.\n *\n * * returning an object with function(s) registered via `pre` and `post` properties - allows you to\n *   control when a linking function should be called during the linking phase. See info about\n *   pre-linking and post-linking functions below.\n *\n *\n * #### `link`\n * This property is used only if the `compile` property is not defined.\n *\n * ```js\n *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }\n * ```\n *\n * The link function is responsible for registering DOM listeners as well as updating the DOM. It is\n * executed after the template has been cloned. This is where most of the directive logic will be\n * put.\n *\n *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the\n *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.\n *\n *   * `iElement` - instance element - The element where the directive is to be used. It is safe to\n *     manipulate the children of the element only in `postLink` function since the children have\n *     already been linked.\n *\n *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared\n *     between all directive linking functions.\n *\n *   * `controller` - the directive's required controller instance(s) - Instances are shared\n *     among all directives, which allows the directives to use the controllers as a communication\n *     channel. The exact value depends on the directive's `require` property:\n *       * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one\n *       * `string`: the controller instance\n *       * `array`: array of controller instances\n *\n *     If a required controller cannot be found, and it is optional, the instance is `null`,\n *     otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown.\n *\n *     Note that you can also require the directive's own controller - it will be made available like\n *     any other controller.\n *\n *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.\n *     This is the same as the `$transclude` parameter of directive controllers,\n *     see {@link ng.$compile#-controller- the controller section for details}.\n *     `function([scope], cloneLinkingFn, futureParentElement)`.\n *\n * #### Pre-linking function\n *\n * Executed before the child elements are linked. Not safe to do DOM transformation since the\n * compiler linking function will fail to locate the correct elements for linking.\n *\n * #### Post-linking function\n *\n * Executed after the child elements are linked.\n *\n * Note that child elements that contain `templateUrl` directives will not have been compiled\n * and linked since they are waiting for their template to load asynchronously and their own\n * compilation and linking has been suspended until that occurs.\n *\n * It is safe to do DOM transformation in the post-linking function on elements that are not waiting\n * for their async templates to be resolved.\n *\n *\n * ### Transclusion\n *\n * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and\n * copying them to another part of the DOM, while maintaining their connection to the original AngularJS\n * scope from where they were taken.\n *\n * Transclusion is used (often with {@link ngTransclude}) to insert the\n * original contents of a directive's element into a specified place in the template of the directive.\n * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded\n * content has access to the properties on the scope from which it was taken, even if the directive\n * has isolated scope.\n * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.\n *\n * This makes it possible for the widget to have private state for its template, while the transcluded\n * content has access to its originating scope.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** When testing an element transclude directive you must not place the directive at the root of the\n * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives\n * Testing Transclusion Directives}.\n * </div>\n *\n * There are three kinds of transclusion depending upon whether you want to transclude just the contents of the\n * directive's element, the entire element or multiple parts of the element contents:\n *\n * * `true` - transclude the content (i.e. the child nodes) of the directive's element.\n * * `'element'` - transclude the whole of the directive's element including any directives on this\n *   element that are defined at a lower priority than this directive. When used, the `template`\n *   property is ignored.\n * * **`{...}` (an object hash):** - map elements of the content onto transclusion \"slots\" in the template.\n *\n * **Multi-slot transclusion** is declared by providing an object for the `transclude` property.\n *\n * This object is a map where the keys are the name of the slot to fill and the value is an element selector\n * used to match the HTML to the slot. The element selector should be in normalized form (e.g. `myElement`)\n * and will match the standard element variants (e.g. `my-element`, `my:element`, `data-my-element`, etc).\n *\n * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}.\n *\n * If the element selector is prefixed with a `?` then that slot is optional.\n *\n * For example, the transclude object `{ slotA: '?myCustomElement' }` maps `<my-custom-element>` elements to\n * the `slotA` slot, which can be accessed via the `$transclude` function or via the {@link ngTransclude} directive.\n *\n * Slots that are not marked as optional (`?`) will trigger a compile time error if there are no matching elements\n * in the transclude content. If you wish to know if an optional slot was filled with content, then you can call\n * `$transclude.isSlotFilled(slotName)` on the transclude function passed to the directive's link function and\n * injectable into the directive's controller.\n *\n *\n * #### Transclusion Functions\n *\n * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion\n * function** to the directive's `link` function and `controller`. This transclusion function is a special\n * **linking function** that will return the compiled contents linked to a new transclusion scope.\n *\n * <div class=\"alert alert-info\">\n * If you are just using {@link ngTransclude} then you don't need to worry about this function, since\n * ngTransclude will deal with it for us.\n * </div>\n *\n * If you want to manually control the insertion and removal of the transcluded content in your directive\n * then you must use this transclude function. When you call a transclude function it returns a jqLite/JQuery\n * object that contains the compiled DOM, which is linked to the correct transclusion scope.\n *\n * When you call a transclusion function you can pass in a **clone attach function**. This function accepts\n * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded\n * content and the `scope` is the newly created transclusion scope, which the clone will be linked to.\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a transclude function\n * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.\n * </div>\n *\n * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone\n * attach function**:\n *\n * ```js\n * var transcludedContent, transclusionScope;\n *\n * $transclude(function(clone, scope) {\n *   element.append(clone);\n *   transcludedContent = clone;\n *   transclusionScope = scope;\n * });\n * ```\n *\n * Later, if you want to remove the transcluded content from your DOM then you should also destroy the\n * associated transclusion scope:\n *\n * ```js\n * transcludedContent.remove();\n * transclusionScope.$destroy();\n * ```\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: if you intend to add and remove transcluded content manually in your directive\n * (by calling the transclude function to get the DOM and calling `element.remove()` to remove it),\n * then you are also responsible for calling `$destroy` on the transclusion scope.\n * </div>\n *\n * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}\n * automatically destroy their transcluded clones as necessary so you do not need to worry about this if\n * you are simply using {@link ngTransclude} to inject the transclusion into your directive.\n *\n *\n * #### Transclusion Scopes\n *\n * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion\n * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed\n * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it\n * was taken.\n *\n * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look\n * like this:\n *\n * ```html\n * <div ng-app>\n *   <div isolate>\n *     <div transclusion>\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * The `$parent` scope hierarchy will look like this:\n *\n   ```\n   - $rootScope\n     - isolate\n       - transclusion\n   ```\n *\n * but the scopes will inherit prototypically from different scopes to their `$parent`.\n *\n   ```\n   - $rootScope\n     - transclusion\n   - isolate\n   ```\n *\n *\n * ### Attributes\n *\n * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the\n * `link()` or `compile()` functions. It has a variety of uses.\n *\n * * *Accessing normalized attribute names:* Directives like `ngBind` can be expressed in many ways:\n *   `ng:bind`, `data-ng-bind`, or `x-ng-bind`. The attributes object allows for normalized access\n *   to the attributes.\n *\n * * *Directive inter-communication:* All directives share the same instance of the attributes\n *   object which allows the directives to use the attributes object as inter directive\n *   communication.\n *\n * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object\n *   allowing other directives to read the interpolated value.\n *\n * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes\n *   that contain interpolation (e.g. `src=\"{{bar}}\"`). Not only is this very efficient but it's also\n *   the only way to easily get the actual value because during the linking phase the interpolation\n *   hasn't been evaluated yet and so the value is at this time set to `undefined`.\n *\n * ```js\n * function linkingFn(scope, elm, attrs, ctrl) {\n *   // get the attribute value\n *   console.log(attrs.ngModel);\n *\n *   // change the attribute\n *   attrs.$set('ngModel', 'new value');\n *\n *   // observe changes to interpolated attribute\n *   attrs.$observe('ngModel', function(value) {\n *     console.log('ngModel has changed value to ' + value);\n *   });\n * }\n * ```\n *\n * ## Example\n *\n * <div class=\"alert alert-warning\">\n * **Note**: Typically directives are registered with `module.directive`. The example below is\n * to illustrate how `$compile` works.\n * </div>\n *\n <example module=\"compileExample\" name=\"compile\">\n   <file name=\"index.html\">\n    <script>\n      angular.module('compileExample', [], function($compileProvider) {\n        // Configure new 'compile' directive by passing a directive\n        // factory function. The factory function injects '$compile'.\n        $compileProvider.directive('compile', function($compile) {\n          // The directive factory creates a link function.\n          return function(scope, element, attrs) {\n            scope.$watch(\n              function(scope) {\n                // Watch the 'compile' expression for changes.\n                return scope.$eval(attrs.compile);\n              },\n              function(value) {\n                // When the 'compile' expression changes\n                // assign it into the current DOM.\n                element.html(value);\n\n                // Compile the new DOM and link it to the current scope.\n                // NOTE: we only compile '.childNodes' so that we\n                // don't get into an infinite loop compiling ourselves.\n                $compile(element.contents())(scope);\n              }\n            );\n          };\n        });\n      })\n      .controller('GreeterController', ['$scope', function($scope) {\n        $scope.name = 'AngularJS';\n        $scope.html = 'Hello {{name}}';\n      }]);\n    </script>\n    <div ng-controller=\"GreeterController\">\n      <input ng-model=\"name\"> <br/>\n      <textarea ng-model=\"html\"></textarea> <br/>\n      <div compile=\"html\"></div>\n    </div>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n     it('should auto compile', function() {\n       var textarea = $('textarea');\n       var output = $('div[compile]');\n       // The initial state reads 'Hello AngularJS'.\n       expect(output.getText()).toBe('Hello AngularJS');\n       textarea.clear();\n       textarea.sendKeys('{{name}}!');\n       expect(output.getText()).toBe('AngularJS!');\n     });\n   </file>\n </example>\n\n *\n *\n * @param {string|DOMElement} element Element or HTML string to compile into a template function.\n * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED.\n *\n * <div class=\"alert alert-danger\">\n * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it\n *   e.g. will not use the right outer scope. Please pass the transclude function as a\n *   `parentBoundTranscludeFn` to the link function instead.\n * </div>\n *\n * @param {number} maxPriority only apply directives lower than given priority (Only effects the\n *                 root element(s), not their children)\n * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template\n * (a DOM element/tree) to a scope. Where:\n *\n *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.\n *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the\n *  `template` and call the `cloneAttachFn` function allowing the caller to attach the\n *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is\n *  called as: <br/> `cloneAttachFn(clonedElement, scope)` where:\n *\n *      * `clonedElement` - is a clone of the original `element` passed into the compiler.\n *      * `scope` - is the current scope with which the linking function is working with.\n *\n *  * `options` - An optional object hash with linking options. If `options` is provided, then the following\n *  keys may be used to control linking behavior:\n *\n *      * `parentBoundTranscludeFn` - the transclude function made available to\n *        directives; if given, it will be passed through to the link functions of\n *        directives found in `element` during compilation.\n *      * `transcludeControllers` - an object hash with keys that map controller names\n *        to a hash with the key `instance`, which maps to the controller instance;\n *        if given, it will make the controllers available to directives on the compileNode:\n *        ```\n *        {\n *          parent: {\n *            instance: parentControllerInstance\n *          }\n *        }\n *        ```\n *      * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add\n *        the cloned elements; only needed for transcludes that are allowed to contain non HTML\n *        elements (e.g. SVG elements). See also the `directive.controller` property.\n *\n * Calling the linking function returns the element of the template. It is either the original\n * element passed in, or the clone of the element if the `cloneAttachFn` is provided.\n *\n * After linking the view is not updated until after a call to `$digest`, which typically is done by\n * AngularJS automatically.\n *\n * If you need access to the bound view, there are two ways to do it:\n *\n * - If you are not asking the linking function to clone the template, create the DOM element(s)\n *   before you send them to the compiler and keep this reference around.\n *   ```js\n *     var element = angular.element('<p>{{total}}</p>');\n *     $compile(element)(scope);\n *   ```\n *\n * - if on the other hand, you need the element to be cloned, the view reference from the original\n *   example would not point to the clone, but rather to the original template that was cloned. In\n *   this case, you can access the clone either via the `cloneAttachFn` or the value returned by the\n *   linking function:\n *   ```js\n *     var templateElement = angular.element('<p>{{total}}</p>');\n *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {\n *       // Attach the clone to DOM document at the right place.\n *     });\n *\n *     // Now we have reference to the cloned DOM via `clonedElement`.\n *     // NOTE: The `clonedElement` returned by the linking function is the same as the\n *     //       `clonedElement` passed to `cloneAttachFn`.\n *   ```\n *\n *\n * For information on how the compiler works, see the\n * {@link guide/compiler AngularJS HTML Compiler} section of the Developer Guide.\n *\n * @knownIssue\n *\n * ### Double Compilation\n *\n   Double compilation occurs when an already compiled part of the DOM gets\n   compiled again. This is an undesired effect and can lead to misbehaving directives, performance issues,\n   and memory leaks. Refer to the Compiler Guide {@link guide/compiler#double-compilation-and-how-to-avoid-it\n   section on double compilation} for an in-depth explanation and ways to avoid it.\n\n * @knownIssue\n\n   ### Issues with `replace: true`\n *\n * <div class=\"alert alert-danger\">\n *   **Note**: {@link $compile#-replace- `replace: true`} is deprecated and not recommended to use,\n *   mainly due to the issues listed here. It has been completely removed in the new Angular.\n * </div>\n *\n * #### Attribute values are not merged\n *\n * When a `replace` directive encounters the same attribute on the original and the replace node,\n * it will simply deduplicate the attribute and join the values with a space or with a `;` in case of\n * the `style` attribute.\n * ```html\n * Original Node: <span class=\"original\" style=\"color: red;\"></span>\n * Replace Template: <span class=\"replaced\" style=\"background: blue;\"></span>\n * Result: <span class=\"original replaced\" style=\"color: red; background: blue;\"></span>\n * ```\n *\n * That means attributes that contain AngularJS expressions will not be merged correctly, e.g.\n * {@link ngShow} or {@link ngClass} will cause a {@link $parse} error:\n *\n * ```html\n * Original Node: <span ng-class=\"{'something': something}\" ng-show=\"!condition\"></span>\n * Replace Template: <span ng-class=\"{'else': else}\" ng-show=\"otherCondition\"></span>\n * Result: <span ng-class=\"{'something': something} {'else': else}\" ng-show=\"!condition otherCondition\"></span>\n * ```\n *\n * See issue [#5695](https://github.com/angular/angular.js/issues/5695).\n *\n * #### Directives are not deduplicated before compilation\n *\n * When the original node and the replace template declare the same directive(s), they will be\n * {@link guide/compiler#double-compilation-and-how-to-avoid-it compiled twice} because the compiler\n * does not deduplicate them. In many cases, this is not noticable, but e.g. {@link ngModel} will\n * attach `$formatters` and `$parsers` twice.\n *\n * See issue [#2573](https://github.com/angular/angular.js/issues/2573).\n *\n * #### `transclude: element` in the replace template root can have unexpected effects\n *\n * When the replace template has a directive at the root node that uses\n * {@link $compile#-transclude- `transclude: element`}, e.g.\n * {@link ngIf} or {@link ngRepeat}, the DOM structure or scope inheritance can be incorrect.\n * See the following issues:\n *\n * - Incorrect scope on replaced element:\n * [#9837](https://github.com/angular/angular.js/issues/9837)\n * - Different DOM between `template` and `templateUrl`:\n * [#10612](https://github.com/angular/angular.js/issues/14326)\n *\n */\n\n/**\n * @ngdoc directive\n * @name ngProp\n * @restrict A\n * @element ANY\n *\n * @usage\n *\n * ```html\n * <ANY ng-prop-propname=\"expression\">\n * </ANY>\n * ```\n *\n * or with uppercase letters in property (e.g. \"propName\"):\n *\n *\n * ```html\n * <ANY ng-prop-prop_name=\"expression\">\n * </ANY>\n * ```\n *\n *\n * @description\n * The `ngProp` directive binds an expression to a DOM element property.\n * `ngProp` allows writing to arbitrary properties by including\n * the property name in the attribute, e.g. `ng-prop-value=\"'my value'\"` binds 'my value' to\n * the `value` property.\n *\n * Usually, it's not necessary to write to properties in AngularJS, as the built-in directives\n * handle the most common use cases (instead of the above example, you would use {@link ngValue}).\n *\n * However, [custom elements](https://developer.mozilla.org/docs/Web/Web_Components/Using_custom_elements)\n * often use custom properties to hold data, and `ngProp` can be used to provide input to these\n * custom elements.\n *\n * ## Binding to camelCase properties\n *\n * Since HTML attributes are case-insensitive, camelCase properties like `innerHTML` must be escaped.\n * AngularJS uses the underscore (_) in front of a character to indicate that it is uppercase, so\n * `innerHTML`  must be written as `ng-prop-inner_h_t_m_l=\"expression\"` (Note that this is just an\n * example, and for binding HTML {@link ngBindHtml} should be used.\n *\n * ## Security\n *\n * Binding expressions to arbitrary properties poses a security risk, as  properties like `innerHTML`\n * can insert potentially dangerous HTML into the application, e.g. script tags that execute\n * malicious code.\n * For this reason, `ngProp` applies Strict Contextual Escaping with the {@link ng.$sce $sce service}.\n * This means vulnerable properties require their content to be \"trusted\", based on the\n * context of the property. For example, the `innerHTML` is in the `HTML` context, and the\n * `iframe.src` property is in the `RESOURCE_URL` context, which requires that values written to\n * this property are trusted as a `RESOURCE_URL`.\n *\n * This can be set explicitly by calling $sce.trustAs(type, value) on the value that is\n * trusted before passing it to the `ng-prop-*` directive. There are exist shorthand methods for\n * each context type in the form of {@link ng.$sce#trustAsResourceUrl $sce.trustAsResourceUrl()} et al.\n *\n * In some cases you can also rely upon automatic sanitization of untrusted values - see below.\n *\n * Based on the context, other options may exist to mark a value as trusted / configure the behavior\n * of {@link ng.$sce}. For example, to restrict the `RESOURCE_URL` context to specific origins, use\n * the {@link $sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist()}\n * and {@link $sceDelegateProvider#resourceUrlBlacklist resourceUrlBlacklist()}.\n *\n * {@link ng.$sce#what-trusted-context-types-are-supported- Find out more about the different context types}.\n *\n * ### HTML Sanitization\n *\n * By default, `$sce` will throw an error if it detects untrusted HTML content, and will not bind the\n * content.\n * However, if you include the {@link ngSanitize ngSanitize module}, it will try to sanitize the\n * potentially dangerous HTML, e.g. strip non-whitelisted tags and attributes when binding to\n * `innerHTML`.\n *\n * @example\n * ### Binding to different contexts\n *\n * <example name=\"ngProp\" module=\"exampleNgProp\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgProp', [])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function($sce) {\n *           this.safeContent = '<strong>Safe content</strong>';\n *           this.unsafeContent = '<button onclick=\"alert(\\'Hello XSS!\\')\">Click for XSS</button>';\n *           this.trustedUnsafeContent = $sce.trustAsHtml(this.unsafeContent);\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <div>\n *       <div class=\"prop-unit\">\n *         Binding to a property without security context:\n *         <div class=\"prop-binding\" ng-prop-inner_text=\"$ctrl.safeContent\"></div>\n *         <span class=\"prop-note\">innerText</span> (safeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         \"Safe\" content that requires a security context will throw because the contents could potentially be dangerous ...\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.safeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (safeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... so that actually dangerous content cannot be executed:\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.unsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (unsafeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... but unsafe Content that has been trusted explicitly works - only do this if you are 100% sure!\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.trustedUnsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (trustedUnsafeContent)\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n *   <file name=\"styles.css\">\n *     .prop-unit {\n *       margin-bottom: 10px;\n *     }\n *\n *     .prop-binding {\n *       min-height: 30px;\n *       border: 1px solid blue;\n *     }\n *\n *     .prop-note {\n *       font-family: Monospace;\n *     }\n *   </file>\n * </example>\n *\n *\n * @example\n * ### Binding to innerHTML with ngSanitize\n *\n * <example name=\"ngProp\" module=\"exampleNgProp\" deps=\"angular-sanitize.js\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgProp', ['ngSanitize'])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function($sce) {\n *           this.safeContent = '<strong>Safe content</strong>';\n *           this.unsafeContent = '<button onclick=\"alert(\\'Hello XSS!\\')\">Click for XSS</button>';\n *           this.trustedUnsafeContent = $sce.trustAsHtml(this.unsafeContent);\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <div>\n *       <div class=\"prop-unit\">\n *         \"Safe\" content will be sanitized ...\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.safeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (safeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... as will dangerous content:\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.unsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (unsafeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... and content that has been trusted explicitly works the same as without ngSanitize:\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.trustedUnsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (trustedUnsafeContent)\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n *   <file name=\"styles.css\">\n *     .prop-unit {\n *       margin-bottom: 10px;\n *     }\n *\n *     .prop-binding {\n *       min-height: 30px;\n *       border: 1px solid blue;\n *     }\n *\n *     .prop-note {\n *       font-family: Monospace;\n *     }\n *   </file>\n * </example>\n *\n */\n\n/** @ngdoc directive\n * @name ngOn\n * @restrict A\n * @element ANY\n *\n * @usage\n *\n * ```html\n * <ANY ng-on-eventname=\"expression\">\n * </ANY>\n * ```\n *\n * or with uppercase letters in property (e.g. \"eventName\"):\n *\n *\n * ```html\n * <ANY ng-on-event_name=\"expression\">\n * </ANY>\n * ```\n *\n * @description\n * The `ngOn` directive adds an event listener to a DOM element via\n * {@link angular.element angular.element().on()}, and evaluates an expression when the event is\n * fired.\n * `ngOn` allows adding listeners for arbitrary events by including\n * the event name in the attribute, e.g. `ng-on-drop=\"onDrop()\"` executes the 'onDrop()' expression\n * when the `drop` event is fired.\n *\n * AngularJS provides specific directives for many events, such as {@link ngClick}, so in most\n * cases it is not necessary to use `ngOn`. However, AngularJS does not support all events\n * (e.g. the `drop` event in the example above), and new events might be introduced in later DOM\n * standards.\n *\n * Another use-case for `ngOn` is listening to\n * [custom events](https://developer.mozilla.org/docs/Web/Guide/Events/Creating_and_triggering_events)\n * fired by\n * [custom elements](https://developer.mozilla.org/docs/Web/Web_Components/Using_custom_elements).\n *\n * ## Binding to camelCase properties\n *\n * Since HTML attributes are case-insensitive, camelCase properties like `myEvent` must be escaped.\n * AngularJS uses the underscore (_) in front of a character to indicate that it is uppercase, so\n * `myEvent` must be written as `ng-on-my_event=\"expression\"`.\n *\n * @example\n * ### Bind to built-in DOM events\n *\n * <example name=\"ngOn\" module=\"exampleNgOn\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgOn', [])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function() {\n *           this.clickCount = 0;\n *           this.mouseoverCount = 0;\n *\n *           this.loadingState = 0;\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <div>\n *       This is equivalent to `ngClick` and `ngMouseover`:<br>\n *       <button\n *         ng-on-click=\"$ctrl.clickCount = $ctrl.clickCount + 1\"\n *         ng-on-mouseover=\"$ctrl.mouseoverCount = $ctrl.mouseoverCount + 1\">Click or mouseover</button><br>\n *       clickCount: {{$ctrl.clickCount}}<br>\n *       mouseover: {{$ctrl.mouseoverCount}}\n *\n *       <hr>\n *\n *       For the `error` and `load` event on images no built-in AngularJS directives exist:<br>\n *       <img src=\"thisimagedoesnotexist.png\" ng-on-error=\"$ctrl.loadingState = -1\" ng-on-load=\"$ctrl.loadingState = 1\"><br>\n *       <div ng-switch=\"$ctrl.loadingState\">\n *         <span ng-switch-when=\"0\">Image is loading</span>\n *         <span ng-switch-when=\"-1\">Image load error</span>\n *         <span ng-switch-when=\"1\">Image loaded successfully</span>\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n * </example>\n *\n *\n * @example\n * ### Bind to custom DOM events\n *\n * <example name=\"ngOnCustom\" module=\"exampleNgOn\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgOn', [])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function() {\n *           this.eventLog = '';\n *\n *           this.listener = function($event) {\n *             this.eventLog = 'Event with type \"' + $event.type + '\" fired at ' + $event.detail;\n *           };\n *         }\n *       })\n *       .component('childComponent', {\n *         templateUrl: 'child.html',\n *         controller: function($element) {\n *           this.fireEvent = function() {\n *             var event = new CustomEvent('customtype', { detail: new Date()});\n *\n *             $element[0].dispatchEvent(event);\n *           };\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <child-component ng-on-customtype=\"$ctrl.listener($event)\"></child-component><br>\n *     <span>Event log: {{$ctrl.eventLog}}</span>\n *   </file>\n *   <file name=\"child.html\">\n      <button ng-click=\"$ctrl.fireEvent()\">Fire custom event</button>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n * </example>\n */\n\nvar $compileMinErr = minErr('$compile');\n\nfunction UNINITIALIZED_VALUE() {}\nvar _UNINITIALIZED_VALUE = new UNINITIALIZED_VALUE();\n\n/**\n * @ngdoc provider\n * @name $compileProvider\n *\n * @description\n */\n$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];\n/** @this */\nfunction $CompileProvider($provide, $$sanitizeUriProvider) {\n  var hasDirectives = {},\n      Suffix = 'Directive',\n      COMMENT_DIRECTIVE_REGEXP = /^\\s*directive:\\s*([\\w-]+)\\s+(.*)$/,\n      CLASS_DIRECTIVE_REGEXP = /(([\\w-]+)(?::([^;]+))?;?)/,\n      ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),\n      REQUIRE_PREFIX_REGEXP = /^(?:(\\^\\^?)?(\\?)?(\\^\\^?)?)?/;\n\n  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes\n  // The assumption is that future DOM event attribute names will begin with\n  // 'on' and be composed of only English letters.\n  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;\n  var bindingCache = createMap();\n\n  function parseIsolateBindings(scope, directiveName, isController) {\n    var LOCAL_REGEXP = /^([@&]|[=<](\\*?))(\\??)\\s*([\\w$]*)$/;\n\n    var bindings = createMap();\n\n    forEach(scope, function(definition, scopeName) {\n      definition = definition.trim();\n\n      if (definition in bindingCache) {\n        bindings[scopeName] = bindingCache[definition];\n        return;\n      }\n      var match = definition.match(LOCAL_REGEXP);\n\n      if (!match) {\n        throw $compileMinErr('iscp',\n            'Invalid {3} for directive \\'{0}\\'.' +\n            ' Definition: {... {1}: \\'{2}\\' ...}',\n            directiveName, scopeName, definition,\n            (isController ? 'controller bindings definition' :\n            'isolate scope definition'));\n      }\n\n      bindings[scopeName] = {\n        mode: match[1][0],\n        collection: match[2] === '*',\n        optional: match[3] === '?',\n        attrName: match[4] || scopeName\n      };\n      if (match[4]) {\n        bindingCache[definition] = bindings[scopeName];\n      }\n    });\n\n    return bindings;\n  }\n\n  function parseDirectiveBindings(directive, directiveName) {\n    var bindings = {\n      isolateScope: null,\n      bindToController: null\n    };\n    if (isObject(directive.scope)) {\n      if (directive.bindToController === true) {\n        bindings.bindToController = parseIsolateBindings(directive.scope,\n                                                         directiveName, true);\n        bindings.isolateScope = {};\n      } else {\n        bindings.isolateScope = parseIsolateBindings(directive.scope,\n                                                     directiveName, false);\n      }\n    }\n    if (isObject(directive.bindToController)) {\n      bindings.bindToController =\n          parseIsolateBindings(directive.bindToController, directiveName, true);\n    }\n    if (bindings.bindToController && !directive.controller) {\n      // There is no controller\n      throw $compileMinErr('noctrl',\n            'Cannot bind to controller without directive \\'{0}\\'s controller.',\n            directiveName);\n    }\n    return bindings;\n  }\n\n  function assertValidDirectiveName(name) {\n    var letter = name.charAt(0);\n    if (!letter || letter !== lowercase(letter)) {\n      throw $compileMinErr('baddir', 'Directive/Component name \\'{0}\\' is invalid. The first character must be a lowercase letter', name);\n    }\n    if (name !== name.trim()) {\n      throw $compileMinErr('baddir',\n            'Directive/Component name \\'{0}\\' is invalid. The name should not contain leading or trailing whitespaces',\n            name);\n    }\n  }\n\n  function getDirectiveRequire(directive) {\n    var require = directive.require || (directive.controller && directive.name);\n\n    if (!isArray(require) && isObject(require)) {\n      forEach(require, function(value, key) {\n        var match = value.match(REQUIRE_PREFIX_REGEXP);\n        var name = value.substring(match[0].length);\n        if (!name) require[key] = match[0] + key;\n      });\n    }\n\n    return require;\n  }\n\n  function getDirectiveRestrict(restrict, name) {\n    if (restrict && !(isString(restrict) && /[EACM]/.test(restrict))) {\n      throw $compileMinErr('badrestrict',\n          'Restrict property \\'{0}\\' of directive \\'{1}\\' is invalid',\n          restrict,\n          name);\n    }\n\n    return restrict || 'EA';\n  }\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#directive\n   * @kind function\n   *\n   * @description\n   * Register a new directive with the compiler.\n   *\n   * @param {string|Object} name Name of the directive in camel-case (i.e. `ngBind` which will match\n   *    as `ng-bind`), or an object map of directives where the keys are the names and the values\n   *    are the factories.\n   * @param {Function|Array} directiveFactory An injectable directive factory function. See the\n   *    {@link guide/directive directive guide} and the {@link $compile compile API} for more info.\n   * @returns {ng.$compileProvider} Self for chaining.\n   */\n  this.directive = function registerDirective(name, directiveFactory) {\n    assertArg(name, 'name');\n    assertNotHasOwnProperty(name, 'directive');\n    if (isString(name)) {\n      assertValidDirectiveName(name);\n      assertArg(directiveFactory, 'directiveFactory');\n      if (!hasDirectives.hasOwnProperty(name)) {\n        hasDirectives[name] = [];\n        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',\n          function($injector, $exceptionHandler) {\n            var directives = [];\n            forEach(hasDirectives[name], function(directiveFactory, index) {\n              try {\n                var directive = $injector.invoke(directiveFactory);\n                if (isFunction(directive)) {\n                  directive = { compile: valueFn(directive) };\n                } else if (!directive.compile && directive.link) {\n                  directive.compile = valueFn(directive.link);\n                }\n                directive.priority = directive.priority || 0;\n                directive.index = index;\n                directive.name = directive.name || name;\n                directive.require = getDirectiveRequire(directive);\n                directive.restrict = getDirectiveRestrict(directive.restrict, name);\n                directive.$$moduleName = directiveFactory.$$moduleName;\n                directives.push(directive);\n              } catch (e) {\n                $exceptionHandler(e);\n              }\n            });\n            return directives;\n          }]);\n      }\n      hasDirectives[name].push(directiveFactory);\n    } else {\n      forEach(name, reverseParams(registerDirective));\n    }\n    return this;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#component\n   * @module ng\n   * @param {string|Object} name Name of the component in camelCase (i.e. `myComp` which will match `<my-comp>`),\n   *    or an object map of components where the keys are the names and the values are the component definition objects.\n   * @param {Object} options Component definition object (a simplified\n   *    {@link ng.$compile#directive-definition-object directive definition object}),\n   *    with the following properties (all optional):\n   *\n   *    - `controller` – `{(string|function()=}` – controller constructor function that should be\n   *      associated with newly created scope or the name of a {@link ng.$compile#-controller-\n   *      registered controller} if passed as a string. An empty `noop` function by default.\n   *    - `controllerAs` – `{string=}` – identifier name for to reference the controller in the component's scope.\n   *      If present, the controller will be published to scope under the `controllerAs` name.\n   *      If not present, this will default to be `$ctrl`.\n   *    - `template` – `{string=|function()=}` – html template as a string or a function that\n   *      returns an html template as a string which should be used as the contents of this component.\n   *      Empty string by default.\n   *\n   *      If `template` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `templateUrl` – `{string=|function()=}` – path or function that returns a path to an html\n   *      template that should be used  as the contents of this component.\n   *\n   *      If `templateUrl` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `bindings` – `{object=}` – defines bindings between DOM attributes and component properties.\n   *      Component properties are always bound to the component controller and not to the scope.\n   *      See {@link ng.$compile#-bindtocontroller- `bindToController`}.\n   *    - `transclude` – `{boolean=}` – whether {@link $compile#transclusion content transclusion} is enabled.\n   *      Disabled by default.\n   *    - `require` - `{Object<string, string>=}` - requires the controllers of other directives and binds them to\n   *      this component's controller. The object keys specify the property names under which the required\n   *      controllers (object values) will be bound. See {@link ng.$compile#-require- `require`}.\n   *    - `$...` – additional properties to attach to the directive factory function and the controller\n   *      constructor function. (This is used by the component router to annotate)\n   *\n   * @returns {ng.$compileProvider} the compile provider itself, for chaining of function calls.\n   * @description\n   * Register a **component definition** with the compiler. This is a shorthand for registering a special\n   * type of directive, which represents a self-contained UI component in your application. Such components\n   * are always isolated (i.e. `scope: {}`) and are always restricted to elements (i.e. `restrict: 'E'`).\n   *\n   * Component definitions are very simple and do not require as much configuration as defining general\n   * directives. Component definitions usually consist only of a template and a controller backing it.\n   *\n   * In order to make the definition easier, components enforce best practices like use of `controllerAs`,\n   * `bindToController`. They always have **isolate scope** and are restricted to elements.\n   *\n   * Here are a few examples of how you would usually define components:\n   *\n   * ```js\n   *   var myMod = angular.module(...);\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     controller: function() {\n   *       this.name = 'shahar';\n   *     }\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     templateUrl: 'views/my-comp.html',\n   *     controller: 'MyCtrl',\n   *     controllerAs: 'ctrl',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   * ```\n   * For more examples, and an in-depth guide, see the {@link guide/component component guide}.\n   *\n   * <br />\n   * See also {@link ng.$compileProvider#directive $compileProvider.directive()}.\n   */\n  this.component = function registerComponent(name, options) {\n    if (!isString(name)) {\n      forEach(name, reverseParams(bind(this, registerComponent)));\n      return this;\n    }\n\n    var controller = options.controller || function() {};\n\n    function factory($injector) {\n      function makeInjectable(fn) {\n        if (isFunction(fn) || isArray(fn)) {\n          return /** @this */ function(tElement, tAttrs) {\n            return $injector.invoke(fn, this, {$element: tElement, $attrs: tAttrs});\n          };\n        } else {\n          return fn;\n        }\n      }\n\n      var template = (!options.template && !options.templateUrl ? '' : options.template);\n      var ddo = {\n        controller: controller,\n        controllerAs: identifierForController(options.controller) || options.controllerAs || '$ctrl',\n        template: makeInjectable(template),\n        templateUrl: makeInjectable(options.templateUrl),\n        transclude: options.transclude,\n        scope: {},\n        bindToController: options.bindings || {},\n        restrict: 'E',\n        require: options.require\n      };\n\n      // Copy annotations (starting with $) over to the DDO\n      forEach(options, function(val, key) {\n        if (key.charAt(0) === '$') ddo[key] = val;\n      });\n\n      return ddo;\n    }\n\n    // TODO(pete) remove the following `forEach` before we release 1.6.0\n    // The component-router@0.2.0 looks for the annotations on the controller constructor\n    // Nothing in AngularJS looks for annotations on the factory function but we can't remove\n    // it from 1.5.x yet.\n\n    // Copy any annotation properties (starting with $) over to the factory and controller constructor functions\n    // These could be used by libraries such as the new component router\n    forEach(options, function(val, key) {\n      if (key.charAt(0) === '$') {\n        factory[key] = val;\n        // Don't try to copy over annotations to named controller\n        if (isFunction(controller)) controller[key] = val;\n      }\n    });\n\n    factory.$inject = ['$injector'];\n\n    return this.directive(name, factory);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at preventing XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.aHrefSanitizationWhitelist();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationWhitelist\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#debugInfoEnabled\n   *\n   * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the\n   * current debugInfoEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable various debug runtime information in the compiler such as adding\n   * binding information and a reference to the current scope on to DOM elements.\n   * If enabled, the compiler will add the following to DOM elements that have been bound to the scope\n   * * `ng-binding` CSS class\n   * * `ng-scope` and `ng-isolated-scope` CSS classes\n   * * `$binding` data property containing an array of the binding expressions\n   * * Data properties used by the {@link angular.element#methods `scope()`/`isolateScope()` methods} to return\n   *   the element's scope.\n   * * Placeholder comments will contain information about what directive and binding caused the placeholder.\n   *   E.g. `<!-- ngIf: shouldShow() -->`.\n   *\n   * You may want to disable this in production for a significant performance boost. See\n   * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.\n   *\n   * The default value is true.\n   */\n  var debugInfoEnabled = true;\n  this.debugInfoEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      debugInfoEnabled = enabled;\n      return this;\n    }\n    return debugInfoEnabled;\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#strictComponentBindingsEnabled\n   *\n   * @param {boolean=} enabled update the strictComponentBindingsEnabled state if provided,\n   * otherwise return the current strictComponentBindingsEnabled state.\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable / disable the strict component bindings check. If enabled, the\n   * compiler will enforce that all scope / controller bindings of a\n   * {@link $compileProvider#directive directive} / {@link $compileProvider#component component}\n   * that are not set as optional with `?`, must be provided when the directive is instantiated.\n   * If not provided, the compiler will throw the\n   * {@link error/$compile/missingattr $compile:missingattr error}.\n   *\n   * The default value is false.\n   */\n  var strictComponentBindingsEnabled = false;\n  this.strictComponentBindingsEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      strictComponentBindingsEnabled = enabled;\n      return this;\n    }\n    return strictComponentBindingsEnabled;\n  };\n\n  var TTL = 10;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#onChangesTtl\n   * @description\n   *\n   * Sets the number of times `$onChanges` hooks can trigger new changes before giving up and\n   * assuming that the model is unstable.\n   *\n   * The current default is 10 iterations.\n   *\n   * In complex applications it's possible that dependencies between `$onChanges` hooks and bindings will result\n   * in several iterations of calls to these hooks. However if an application needs more than the default 10\n   * iterations to stabilize then you should investigate what is causing the model to continuously change during\n   * the `$onChanges` hook execution.\n   *\n   * Increasing the TTL could have performance implications, so you should not change it without proper justification.\n   *\n   * @param {number} limit The number of `$onChanges` hook iterations.\n   * @returns {number|object} the current limit (or `this` if called as a setter for chaining)\n   */\n  this.onChangesTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n      return this;\n    }\n    return TTL;\n  };\n\n  var commentDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#commentDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on comments should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on comments for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check comments when looking for directives.\n   * This should however only be used if you are sure that no comment directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on comments\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.commentDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      commentDirectivesEnabledConfig = value;\n      return this;\n    }\n    return commentDirectivesEnabledConfig;\n  };\n\n\n  var cssClassDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#cssClassDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on element classes should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on element classes for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check element classes when looking for directives.\n   * This should however only be used if you are sure that no class directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on element classes\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.cssClassDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      cssClassDirectivesEnabledConfig = value;\n      return this;\n    }\n    return cssClassDirectivesEnabledConfig;\n  };\n\n\n  /**\n   * The security context of DOM Properties.\n   * @private\n   */\n  var PROP_CONTEXTS = createMap();\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#addPropertySecurityContext\n   * @description\n   *\n   * Defines the security context for DOM properties bound by ng-prop-*.\n   *\n   * @param {string} elementName The element name or '*' to match any element.\n   * @param {string} propertyName The DOM property name.\n   * @param {string} ctx The {@link $sce} security context in which this value is safe for use, e.g. `$sce.URL`\n   * @returns {object} `this` for chaining\n   */\n  this.addPropertySecurityContext = function(elementName, propertyName, ctx) {\n    var key = (elementName.toLowerCase() + '|' + propertyName.toLowerCase());\n\n    if (key in PROP_CONTEXTS && PROP_CONTEXTS[key] !== ctx) {\n      throw $compileMinErr('ctxoverride', 'Property context \\'{0}.{1}\\' already set to \\'{2}\\', cannot override to \\'{3}\\'.', elementName, propertyName, PROP_CONTEXTS[key], ctx);\n    }\n\n    PROP_CONTEXTS[key] = ctx;\n    return this;\n  };\n\n  /* Default property contexts.\n   *\n   * Copy of https://github.com/angular/angular/blob/6.0.6/packages/compiler/src/schema/dom_security_schema.ts#L31-L58\n   * Changing:\n   * - SecurityContext.* => SCE_CONTEXTS/$sce.*\n   * - STYLE => CSS\n   * - various URL => MEDIA_URL\n   * - *|formAction, form|action URL => RESOURCE_URL (like the attribute)\n   */\n  (function registerNativePropertyContexts() {\n    function registerContext(ctx, values) {\n      forEach(values, function(v) { PROP_CONTEXTS[v.toLowerCase()] = ctx; });\n    }\n\n    registerContext(SCE_CONTEXTS.HTML, [\n      'iframe|srcdoc',\n      '*|innerHTML',\n      '*|outerHTML'\n    ]);\n    registerContext(SCE_CONTEXTS.CSS, ['*|style']);\n    registerContext(SCE_CONTEXTS.URL, [\n      'area|href',       'area|ping',\n      'a|href',          'a|ping',\n      'blockquote|cite',\n      'body|background',\n      'del|cite',\n      'input|src',\n      'ins|cite',\n      'q|cite'\n    ]);\n    registerContext(SCE_CONTEXTS.MEDIA_URL, [\n      'audio|src',\n      'img|src',    'img|srcset',\n      'source|src', 'source|srcset',\n      'track|src',\n      'video|src',  'video|poster'\n    ]);\n    registerContext(SCE_CONTEXTS.RESOURCE_URL, [\n      '*|formAction',\n      'applet|code',      'applet|codebase',\n      'base|href',\n      'embed|src',\n      'frame|src',\n      'form|action',\n      'head|profile',\n      'html|manifest',\n      'iframe|src',\n      'link|href',\n      'media|src',\n      'object|codebase',  'object|data',\n      'script|src'\n    ]);\n  })();\n\n\n  this.$get = [\n            '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',\n            '$controller', '$rootScope', '$sce', '$animate',\n    function($injector,   $interpolate,   $exceptionHandler,   $templateRequest,   $parse,\n             $controller,   $rootScope,   $sce,   $animate) {\n\n    var SIMPLE_ATTR_NAME = /^\\w/;\n    var specialAttrHolder = window.document.createElement('div');\n\n\n    var commentDirectivesEnabled = commentDirectivesEnabledConfig;\n    var cssClassDirectivesEnabled = cssClassDirectivesEnabledConfig;\n\n\n    var onChangesTtl = TTL;\n    // The onChanges hooks should all be run together in a single digest\n    // When changes occur, the call to trigger their hooks will be added to this queue\n    var onChangesQueue;\n\n    // This function is called in a $$postDigest to trigger all the onChanges hooks in a single digest\n    function flushOnChangesQueue() {\n      try {\n        if (!(--onChangesTtl)) {\n          // We have hit the TTL limit so reset everything\n          onChangesQueue = undefined;\n          throw $compileMinErr('infchng', '{0} $onChanges() iterations reached. Aborting!\\n', TTL);\n        }\n        // We must run this hook in an apply since the $$postDigest runs outside apply\n        $rootScope.$apply(function() {\n          for (var i = 0, ii = onChangesQueue.length; i < ii; ++i) {\n            try {\n              onChangesQueue[i]();\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          // Reset the queue to trigger a new schedule next time there is a change\n          onChangesQueue = undefined;\n        });\n      } finally {\n        onChangesTtl++;\n      }\n    }\n\n\n    function sanitizeSrcset(value, invokeType) {\n      if (!value) {\n        return value;\n      }\n      if (!isString(value)) {\n        throw $compileMinErr('srcset', 'Can\\'t pass trusted values to `{0}`: \"{1}\"', invokeType, value.toString());\n      }\n\n      // Such values are a bit too complex to handle automatically inside $sce.\n      // Instead, we sanitize each of the URIs individually, which works, even dynamically.\n\n      // It's not possible to work around this using `$sce.trustAsMediaUrl`.\n      // If you want to programmatically set explicitly trusted unsafe URLs, you should use\n      // `$sce.trustAsHtml` on the whole `img` tag and inject it into the DOM using the\n      // `ng-bind-html` directive.\n\n      var result = '';\n\n      // first check if there are spaces because it's not the same pattern\n      var trimmedSrcset = trim(value);\n      //                (   999x   ,|   999w   ,|   ,|,   )\n      var srcPattern = /(\\s+\\d+x\\s*,|\\s+\\d+w\\s*,|\\s+,|,\\s+)/;\n      var pattern = /\\s/.test(trimmedSrcset) ? srcPattern : /(,)/;\n\n      // split srcset into tuple of uri and descriptor except for the last item\n      var rawUris = trimmedSrcset.split(pattern);\n\n      // for each tuples\n      var nbrUrisWith2parts = Math.floor(rawUris.length / 2);\n      for (var i = 0; i < nbrUrisWith2parts; i++) {\n        var innerIdx = i * 2;\n        // sanitize the uri\n        result += $sce.getTrustedMediaUrl(trim(rawUris[innerIdx]));\n        // add the descriptor\n        result += ' ' + trim(rawUris[innerIdx + 1]);\n      }\n\n      // split the last item into uri and descriptor\n      var lastTuple = trim(rawUris[i * 2]).split(/\\s/);\n\n      // sanitize the last uri\n      result += $sce.getTrustedMediaUrl(trim(lastTuple[0]));\n\n      // and add the last descriptor if any\n      if (lastTuple.length === 2) {\n        result += (' ' + trim(lastTuple[1]));\n      }\n      return result;\n    }\n\n\n    function Attributes(element, attributesToCopy) {\n      if (attributesToCopy) {\n        var keys = Object.keys(attributesToCopy);\n        var i, l, key;\n\n        for (i = 0, l = keys.length; i < l; i++) {\n          key = keys[i];\n          this[key] = attributesToCopy[key];\n        }\n      } else {\n        this.$attr = {};\n      }\n\n      this.$$element = element;\n    }\n\n    Attributes.prototype = {\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$normalize\n       * @kind function\n       *\n       * @description\n       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or\n       * `data-`) to its normalized, camelCase form.\n       *\n       * Also there is special case for Moz prefix starting with upper case letter.\n       *\n       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n       *\n       * @param {string} name Name to normalize\n       */\n      $normalize: directiveNormalize,\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$addClass\n       * @kind function\n       *\n       * @description\n       * Adds the CSS class value specified by the classVal parameter to the element. If animations\n       * are enabled then an animation will be triggered for the class addition.\n       *\n       * @param {string} classVal The className value that will be added to the element\n       */\n      $addClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.addClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$removeClass\n       * @kind function\n       *\n       * @description\n       * Removes the CSS class value specified by the classVal parameter from the element. If\n       * animations are enabled then an animation will be triggered for the class removal.\n       *\n       * @param {string} classVal The className value that will be removed from the element\n       */\n      $removeClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.removeClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$updateClass\n       * @kind function\n       *\n       * @description\n       * Adds and removes the appropriate CSS class values to the element based on the difference\n       * between the new and old CSS class values (specified as newClasses and oldClasses).\n       *\n       * @param {string} newClasses The current CSS className value\n       * @param {string} oldClasses The former CSS className value\n       */\n      $updateClass: function(newClasses, oldClasses) {\n        var toAdd = tokenDifference(newClasses, oldClasses);\n        if (toAdd && toAdd.length) {\n          $animate.addClass(this.$$element, toAdd);\n        }\n\n        var toRemove = tokenDifference(oldClasses, newClasses);\n        if (toRemove && toRemove.length) {\n          $animate.removeClass(this.$$element, toRemove);\n        }\n      },\n\n      /**\n       * Set a normalized attribute on the element in a way such that all directives\n       * can share the attribute. This function properly handles boolean attributes.\n       * @param {string} key Normalized key. (ie ngAttribute)\n       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.\n       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.\n       *     Defaults to true.\n       * @param {string=} attrName Optional none normalized name. Defaults to key.\n       */\n      $set: function(key, value, writeAttr, attrName) {\n        // TODO: decide whether or not to throw an error if \"class\"\n        // is set through this function since it may cause $updateClass to\n        // become unstable.\n\n        var node = this.$$element[0],\n            booleanKey = getBooleanAttrName(node, key),\n            aliasedKey = getAliasedAttrName(key),\n            observer = key,\n            nodeName;\n\n        if (booleanKey) {\n          this.$$element.prop(key, value);\n          attrName = booleanKey;\n        } else if (aliasedKey) {\n          this[aliasedKey] = value;\n          observer = aliasedKey;\n        }\n\n        this[key] = value;\n\n        // translate normalized key to actual key\n        if (attrName) {\n          this.$attr[key] = attrName;\n        } else {\n          attrName = this.$attr[key];\n          if (!attrName) {\n            this.$attr[key] = attrName = snake_case(key, '-');\n          }\n        }\n\n        nodeName = nodeName_(this.$$element);\n\n        // Sanitize img[srcset] values.\n        if (nodeName === 'img' && key === 'srcset') {\n          this[key] = value = sanitizeSrcset(value, '$set(\\'srcset\\', value)');\n        }\n\n        if (writeAttr !== false) {\n          if (value === null || isUndefined(value)) {\n            this.$$element.removeAttr(attrName);\n          } else {\n            if (SIMPLE_ATTR_NAME.test(attrName)) {\n              // jQuery skips special boolean attrs treatment in XML nodes for\n              // historical reasons and hence AngularJS cannot freely call\n              // `.attr(attrName, false) with such attributes. To avoid issues\n              // in XHTML, call `removeAttr` in such cases instead.\n              // See https://github.com/jquery/jquery/issues/4249\n              if (booleanKey && value === false) {\n                this.$$element.removeAttr(attrName);\n              } else {\n                this.$$element.attr(attrName, value);\n              }\n            } else {\n              setSpecialAttr(this.$$element[0], attrName, value);\n            }\n          }\n        }\n\n        // fire observers\n        var $$observers = this.$$observers;\n        if ($$observers) {\n          forEach($$observers[observer], function(fn) {\n            try {\n              fn(value);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          });\n        }\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$observe\n       * @kind function\n       *\n       * @description\n       * Observes an interpolated attribute.\n       *\n       * The observer function will be invoked once during the next `$digest` following\n       * compilation. The observer is then invoked whenever the interpolated value\n       * changes.\n       *\n       * @param {string} key Normalized key. (ie ngAttribute) .\n       * @param {function(interpolatedValue)} fn Function that will be called whenever\n                the interpolated value of the attribute changes.\n       *        See the {@link guide/interpolation#how-text-and-attribute-bindings-work Interpolation\n       *        guide} for more info.\n       * @returns {function()} Returns a deregistration function for this observer.\n       */\n      $observe: function(key, fn) {\n        var attrs = this,\n            $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),\n            listeners = ($$observers[key] || ($$observers[key] = []));\n\n        listeners.push(fn);\n        $rootScope.$evalAsync(function() {\n          if (!listeners.$$inter && attrs.hasOwnProperty(key) && !isUndefined(attrs[key])) {\n            // no one registered attribute interpolation function, so lets call it manually\n            fn(attrs[key]);\n          }\n        });\n\n        return function() {\n          arrayRemove(listeners, fn);\n        };\n      }\n    };\n\n    function setSpecialAttr(element, attrName, value) {\n      // Attributes names that do not start with letters (such as `(click)`) cannot be set using `setAttribute`\n      // so we have to jump through some hoops to get such an attribute\n      // https://github.com/angular/angular.js/pull/13318\n      specialAttrHolder.innerHTML = '<span ' + attrName + '>';\n      var attributes = specialAttrHolder.firstChild.attributes;\n      var attribute = attributes[0];\n      // We have to remove the attribute from its container element before we can add it to the destination element\n      attributes.removeNamedItem(attribute.name);\n      attribute.value = value;\n      element.attributes.setNamedItem(attribute);\n    }\n\n    function safeAddClass($element, className) {\n      try {\n        $element.addClass(className);\n      } catch (e) {\n        // ignore, since it means that we are trying to set class on\n        // SVG element, where class name is read-only.\n      }\n    }\n\n\n    var startSymbol = $interpolate.startSymbol(),\n        endSymbol = $interpolate.endSymbol(),\n        denormalizeTemplate = (startSymbol === '{{' && endSymbol  === '}}')\n            ? identity\n            : function denormalizeTemplate(template) {\n              return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n        },\n        NG_PREFIX_BINDING = /^ng(Attr|Prop|On)([A-Z].*)$/;\n    var MULTI_ELEMENT_DIR_RE = /^(.+)Start$/;\n\n    compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {\n      var bindings = $element.data('$binding') || [];\n\n      if (isArray(binding)) {\n        bindings = bindings.concat(binding);\n      } else {\n        bindings.push(binding);\n      }\n\n      $element.data('$binding', bindings);\n    } : noop;\n\n    compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {\n      safeAddClass($element, 'ng-binding');\n    } : noop;\n\n    compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {\n      var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';\n      $element.data(dataName, scope);\n    } : noop;\n\n    compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {\n      safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');\n    } : noop;\n\n    compile.$$createComment = function(directiveName, comment) {\n      var content = '';\n      if (debugInfoEnabled) {\n        content = ' ' + (directiveName || '') + ': ';\n        if (comment) content += comment + ' ';\n      }\n      return window.document.createComment(content);\n    };\n\n    return compile;\n\n    //================================\n\n    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,\n                        previousCompileContext) {\n      if (!($compileNodes instanceof jqLite)) {\n        // jquery always rewraps, whereas we need to preserve the original selector so that we can\n        // modify it.\n        $compileNodes = jqLite($compileNodes);\n      }\n      var compositeLinkFn =\n              compileNodes($compileNodes, transcludeFn, $compileNodes,\n                           maxPriority, ignoreDirective, previousCompileContext);\n      compile.$$addScopeClass($compileNodes);\n      var namespace = null;\n      return function publicLinkFn(scope, cloneConnectFn, options) {\n        if (!$compileNodes) {\n          throw $compileMinErr('multilink', 'This element has already been linked.');\n        }\n        assertArg(scope, 'scope');\n\n        if (previousCompileContext && previousCompileContext.needsNewScope) {\n          // A parent directive did a replace and a directive on this element asked\n          // for transclusion, which caused us to lose a layer of element on which\n          // we could hold the new transclusion scope, so we will create it manually\n          // here.\n          scope = scope.$parent.$new();\n        }\n\n        options = options || {};\n        var parentBoundTranscludeFn = options.parentBoundTranscludeFn,\n          transcludeControllers = options.transcludeControllers,\n          futureParentElement = options.futureParentElement;\n\n        // When `parentBoundTranscludeFn` is passed, it is a\n        // `controllersBoundTransclude` function (it was previously passed\n        // as `transclude` to directive.link) so we must unwrap it to get\n        // its `boundTranscludeFn`\n        if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) {\n          parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude;\n        }\n\n        if (!namespace) {\n          namespace = detectNamespaceForChildElements(futureParentElement);\n        }\n        var $linkNode;\n        if (namespace !== 'html') {\n          // When using a directive with replace:true and templateUrl the $compileNodes\n          // (or a child element inside of them)\n          // might change, so we need to recreate the namespace adapted compileNodes\n          // for call to the link function.\n          // Note: This will already clone the nodes...\n          $linkNode = jqLite(\n            wrapTemplate(namespace, jqLite('<div></div>').append($compileNodes).html())\n          );\n        } else if (cloneConnectFn) {\n          // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n          // and sometimes changes the structure of the DOM.\n          $linkNode = JQLitePrototype.clone.call($compileNodes);\n        } else {\n          $linkNode = $compileNodes;\n        }\n\n        if (transcludeControllers) {\n          for (var controllerName in transcludeControllers) {\n            $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);\n          }\n        }\n\n        compile.$$addScopeInfo($linkNode, scope);\n\n        if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n\n        if (!cloneConnectFn) {\n          $compileNodes = compositeLinkFn = null;\n        }\n        return $linkNode;\n      };\n    }\n\n    function detectNamespaceForChildElements(parentElement) {\n      // TODO: Make this detect MathML as well...\n      var node = parentElement && parentElement[0];\n      if (!node) {\n        return 'html';\n      } else {\n        return nodeName_(node) !== 'foreignobject' && toString.call(node).match(/SVG/) ? 'svg' : 'html';\n      }\n    }\n\n    /**\n     * Compile function matches each node in nodeList against the directives. Once all directives\n     * for a particular node are collected their compile functions are executed. The compile\n     * functions return values - the linking functions - are combined into a composite linking\n     * function, which is the a linking function for the node.\n     *\n     * @param {NodeList} nodeList an array of nodes or NodeList to compile\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *        scope argument is auto-generated to the new child of the transcluded parent scope.\n     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n     *        the rootElement must be set the jqLite collection of the compile root. This is\n     *        needed so that the jqLite collection items can be replaced with widgets.\n     * @param {number=} maxPriority Max directive priority.\n     * @returns {Function} A composite linking function of all of the matched directives or null.\n     */\n    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n                            previousCompileContext) {\n      var linkFns = [],\n          // `nodeList` can be either an element's `.childNodes` (live NodeList)\n          // or a jqLite/jQuery collection or an array\n          notLiveList = isArray(nodeList) || (nodeList instanceof jqLite),\n          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;\n\n\n      for (var i = 0; i < nodeList.length; i++) {\n        attrs = new Attributes();\n\n        // Support: IE 11 only\n        // Workaround for #11781 and #14924\n        if (msie === 11) {\n          mergeConsecutiveTextNodes(nodeList, i, notLiveList);\n        }\n\n        // We must always refer to `nodeList[i]` hereafter,\n        // since the nodes can be replaced underneath us.\n        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n                                        ignoreDirective);\n\n        nodeLinkFn = (directives.length)\n            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n                                      null, [], [], previousCompileContext)\n            : null;\n\n        if (nodeLinkFn && nodeLinkFn.scope) {\n          compile.$$addScopeClass(attrs.$$element);\n        }\n\n        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n                      !(childNodes = nodeList[i].childNodes) ||\n                      !childNodes.length)\n            ? null\n            : compileNodes(childNodes,\n                 nodeLinkFn ? (\n                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n                     && nodeLinkFn.transclude) : transcludeFn);\n\n        if (nodeLinkFn || childLinkFn) {\n          linkFns.push(i, nodeLinkFn, childLinkFn);\n          linkFnFound = true;\n          nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;\n        }\n\n        //use the previous context only for the first element in the virtual group\n        previousCompileContext = null;\n      }\n\n      // return a linking function if we have found anything, null otherwise\n      return linkFnFound ? compositeLinkFn : null;\n\n      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n        var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;\n        var stableNodeList;\n\n\n        if (nodeLinkFnFound) {\n          // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our\n          // offsets don't get screwed up\n          var nodeListLength = nodeList.length;\n          stableNodeList = new Array(nodeListLength);\n\n          // create a sparse array by only copying the elements which have a linkFn\n          for (i = 0; i < linkFns.length; i += 3) {\n            idx = linkFns[i];\n            stableNodeList[idx] = nodeList[idx];\n          }\n        } else {\n          stableNodeList = nodeList;\n        }\n\n        for (i = 0, ii = linkFns.length; i < ii;) {\n          node = stableNodeList[linkFns[i++]];\n          nodeLinkFn = linkFns[i++];\n          childLinkFn = linkFns[i++];\n\n          if (nodeLinkFn) {\n            if (nodeLinkFn.scope) {\n              childScope = scope.$new();\n              compile.$$addScopeInfo(jqLite(node), childScope);\n            } else {\n              childScope = scope;\n            }\n\n            if (nodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(\n                  scope, nodeLinkFn.transclude, parentBoundTranscludeFn);\n\n            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n              childBoundTranscludeFn = parentBoundTranscludeFn;\n\n            } else if (!parentBoundTranscludeFn && transcludeFn) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n            } else {\n              childBoundTranscludeFn = null;\n            }\n\n            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n          } else if (childLinkFn) {\n            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n          }\n        }\n      }\n    }\n\n    function mergeConsecutiveTextNodes(nodeList, idx, notLiveList) {\n      var node = nodeList[idx];\n      var parent = node.parentNode;\n      var sibling;\n\n      if (node.nodeType !== NODE_TYPE_TEXT) {\n        return;\n      }\n\n      while (true) {\n        sibling = parent ? node.nextSibling : nodeList[idx + 1];\n        if (!sibling || sibling.nodeType !== NODE_TYPE_TEXT) {\n          break;\n        }\n\n        node.nodeValue = node.nodeValue + sibling.nodeValue;\n\n        if (sibling.parentNode) {\n          sibling.parentNode.removeChild(sibling);\n        }\n        if (notLiveList && sibling === nodeList[idx + 1]) {\n          nodeList.splice(idx + 1, 1);\n        }\n      }\n    }\n\n    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) {\n      function boundTranscludeFn(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {\n\n        if (!transcludedScope) {\n          transcludedScope = scope.$new(false, containingScope);\n          transcludedScope.$$transcluded = true;\n        }\n\n        return transcludeFn(transcludedScope, cloneFn, {\n          parentBoundTranscludeFn: previousBoundTranscludeFn,\n          transcludeControllers: controllers,\n          futureParentElement: futureParentElement\n        });\n      }\n\n      // We need  to attach the transclusion slots onto the `boundTranscludeFn`\n      // so that they are available inside the `controllersBoundTransclude` function\n      var boundSlots = boundTranscludeFn.$$slots = createMap();\n      for (var slotName in transcludeFn.$$slots) {\n        if (transcludeFn.$$slots[slotName]) {\n          boundSlots[slotName] = createBoundTranscludeFn(scope, transcludeFn.$$slots[slotName], previousBoundTranscludeFn);\n        } else {\n          boundSlots[slotName] = null;\n        }\n      }\n\n      return boundTranscludeFn;\n    }\n\n    /**\n     * Looks for directives on the given node and adds them to the directive collection which is\n     * sorted.\n     *\n     * @param node Node to search.\n     * @param directives An array to which the directives are added to. This array is sorted before\n     *        the function returns.\n     * @param attrs The shared attrs object which is used to populate the normalized attributes.\n     * @param {number=} maxPriority Max directive priority.\n     */\n    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      var nodeType = node.nodeType,\n          attrsMap = attrs.$attr,\n          match,\n          nodeName,\n          className;\n\n      switch (nodeType) {\n        case NODE_TYPE_ELEMENT: /* Element */\n\n          nodeName = nodeName_(node);\n\n          // use the node name: <directive>\n          addDirective(directives,\n              directiveNormalize(nodeName), 'E', maxPriority, ignoreDirective);\n\n          // iterate over the attributes\n          for (var attr, name, nName, value, ngPrefixMatch, nAttrs = node.attributes,\n                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n            var attrStartName = false;\n            var attrEndName = false;\n\n            var isNgAttr = false, isNgProp = false, isNgEvent = false;\n            var multiElementMatch;\n\n            attr = nAttrs[j];\n            name = attr.name;\n            value = attr.value;\n\n            nName = directiveNormalize(name.toLowerCase());\n\n            // Support ng-attr-*, ng-prop-* and ng-on-*\n            if ((ngPrefixMatch = nName.match(NG_PREFIX_BINDING))) {\n              isNgAttr = ngPrefixMatch[1] === 'Attr';\n              isNgProp = ngPrefixMatch[1] === 'Prop';\n              isNgEvent = ngPrefixMatch[1] === 'On';\n\n              // Normalize the non-prefixed name\n              name = name.replace(PREFIX_REGEXP, '')\n                .toLowerCase()\n                .substr(4 + ngPrefixMatch[1].length).replace(/_(.)/g, function(match, letter) {\n                  return letter.toUpperCase();\n                });\n\n            // Support *-start / *-end multi element directives\n            } else if ((multiElementMatch = nName.match(MULTI_ELEMENT_DIR_RE)) && directiveIsMultiElement(multiElementMatch[1])) {\n              attrStartName = name;\n              attrEndName = name.substr(0, name.length - 5) + 'end';\n              name = name.substr(0, name.length - 6);\n            }\n\n            if (isNgProp || isNgEvent) {\n              attrs[nName] = value;\n              attrsMap[nName] = attr.name;\n\n              if (isNgProp) {\n                addPropertyDirective(node, directives, nName, name);\n              } else {\n                addEventDirective(directives, nName, name);\n              }\n            } else {\n              // Update nName for cases where a prefix was removed\n              // NOTE: the .toLowerCase() is unnecessary and causes https://github.com/angular/angular.js/issues/16624 for ng-attr-*\n              nName = directiveNormalize(name.toLowerCase());\n              attrsMap[nName] = name;\n\n              if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n                attrs[nName] = value;\n                if (getBooleanAttrName(node, nName)) {\n                  attrs[nName] = true; // presence means true\n                }\n              }\n\n              addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);\n              addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n                            attrEndName);\n            }\n          }\n\n          if (nodeName === 'input' && node.getAttribute('type') === 'hidden') {\n            // Hidden input elements can have strange behaviour when navigating back to the page\n            // This tells the browser not to try to cache and reinstate previous values\n            node.setAttribute('autocomplete', 'off');\n          }\n\n          // use class as directive\n          if (!cssClassDirectivesEnabled) break;\n          className = node.className;\n          if (isObject(className)) {\n              // Maybe SVGAnimatedString\n              className = className.animVal;\n          }\n          if (isString(className) && className !== '') {\n            while ((match = CLASS_DIRECTIVE_REGEXP.exec(className))) {\n              nName = directiveNormalize(match[2]);\n              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[3]);\n              }\n              className = className.substr(match.index + match[0].length);\n            }\n          }\n          break;\n        case NODE_TYPE_TEXT: /* Text Node */\n          addTextInterpolateDirective(directives, node.nodeValue);\n          break;\n        case NODE_TYPE_COMMENT: /* Comment */\n          if (!commentDirectivesEnabled) break;\n          collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective);\n          break;\n      }\n\n      directives.sort(byPriority);\n      return directives;\n    }\n\n    function collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      // function created because of performance, try/catch disables\n      // the optimization of the whole function #14848\n      try {\n        var match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n        if (match) {\n          var nName = directiveNormalize(match[1]);\n          if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n            attrs[nName] = trim(match[2]);\n          }\n        }\n      } catch (e) {\n        // turns out that under some circumstances IE9 throws errors when one attempts to read\n        // comment's node value.\n        // Just ignore it and continue. (Can't seem to reproduce in test case.)\n      }\n    }\n\n    /**\n     * Given a node with a directive-start it collects all of the siblings until it finds\n     * directive-end.\n     * @param node\n     * @param attrStart\n     * @param attrEnd\n     * @returns {*}\n     */\n    function groupScan(node, attrStart, attrEnd) {\n      var nodes = [];\n      var depth = 0;\n      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n        do {\n          if (!node) {\n            throw $compileMinErr('uterdir',\n                      'Unterminated attribute, found \\'{0}\\' but no matching \\'{1}\\' found.',\n                      attrStart, attrEnd);\n          }\n          if (node.nodeType === NODE_TYPE_ELEMENT) {\n            if (node.hasAttribute(attrStart)) depth++;\n            if (node.hasAttribute(attrEnd)) depth--;\n          }\n          nodes.push(node);\n          node = node.nextSibling;\n        } while (depth > 0);\n      } else {\n        nodes.push(node);\n      }\n\n      return jqLite(nodes);\n    }\n\n    /**\n     * Wrapper for linking function which converts normal linking function into a grouped\n     * linking function.\n     * @param linkFn\n     * @param attrStart\n     * @param attrEnd\n     * @returns {Function}\n     */\n    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n      return function groupedElementsLink(scope, element, attrs, controllers, transcludeFn) {\n        element = groupScan(element[0], attrStart, attrEnd);\n        return linkFn(scope, element, attrs, controllers, transcludeFn);\n      };\n    }\n\n    /**\n     * A function generator that is used to support both eager and lazy compilation\n     * linking function.\n     * @param eager\n     * @param $compileNodes\n     * @param transcludeFn\n     * @param maxPriority\n     * @param ignoreDirective\n     * @param previousCompileContext\n     * @returns {Function}\n     */\n    function compilationGenerator(eager, $compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) {\n      var compiled;\n\n      if (eager) {\n        return compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n      }\n      return /** @this */ function lazyCompilation() {\n        if (!compiled) {\n          compiled = compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n\n          // Null out all of these references in order to make them eligible for garbage collection\n          // since this is a potentially long lived closure\n          $compileNodes = transcludeFn = previousCompileContext = null;\n        }\n        return compiled.apply(this, arguments);\n      };\n    }\n\n    /**\n     * Once the directives have been collected, their compile functions are executed. This method\n     * is responsible for inlining directive templates as well as terminating the application\n     * of the directives if the terminal directive has been reached.\n     *\n     * @param {Array} directives Array of collected directives to execute their compile function.\n     *        this needs to be pre-sorted by priority order.\n     * @param {Node} compileNode The raw DOM node to apply the compile functions to\n     * @param {Object} templateAttrs The shared attribute function\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *                                                  scope argument is auto-generated to the new\n     *                                                  child of the transcluded parent scope.\n     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n     *                              argument has the root jqLite array so that we can replace nodes\n     *                              on it.\n     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n     *                                           compiling the transclusion.\n     * @param {Array.<Function>} preLinkFns\n     * @param {Array.<Function>} postLinkFns\n     * @param {Object} previousCompileContext Context used for previous compilation of the current\n     *                                        node\n     * @returns {Function} linkFn\n     */\n    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n                                   previousCompileContext) {\n      previousCompileContext = previousCompileContext || {};\n\n      var terminalPriority = -Number.MAX_VALUE,\n          newScopeDirective = previousCompileContext.newScopeDirective,\n          controllerDirectives = previousCompileContext.controllerDirectives,\n          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n          templateDirective = previousCompileContext.templateDirective,\n          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n          hasTranscludeDirective = false,\n          hasTemplate = false,\n          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n          $compileNode = templateAttrs.$$element = jqLite(compileNode),\n          directive,\n          directiveName,\n          $template,\n          replaceDirective = originalReplaceDirective,\n          childTranscludeFn = transcludeFn,\n          linkFn,\n          didScanForMultipleTransclusion = false,\n          mightHaveMultipleTransclusionError = false,\n          directiveValue;\n\n      // executes all directives on the current element\n      for (var i = 0, ii = directives.length; i < ii; i++) {\n        directive = directives[i];\n        var attrStart = directive.$$start;\n        var attrEnd = directive.$$end;\n\n        // collect multiblock sections\n        if (attrStart) {\n          $compileNode = groupScan(compileNode, attrStart, attrEnd);\n        }\n        $template = undefined;\n\n        if (terminalPriority > directive.priority) {\n          break; // prevent further processing of directives\n        }\n\n        directiveValue = directive.scope;\n\n        if (directiveValue) {\n\n          // skip the check for directives with async templates, we'll check the derived sync\n          // directive when the template arrives\n          if (!directive.templateUrl) {\n            if (isObject(directiveValue)) {\n              // This directive is trying to add an isolated scope.\n              // Check that there is no scope of any kind already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,\n                                directive, $compileNode);\n              newIsolateScopeDirective = directive;\n            } else {\n              // This directive is trying to add a child scope.\n              // Check that there is no isolated scope already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n                                $compileNode);\n            }\n          }\n\n          newScopeDirective = newScopeDirective || directive;\n        }\n\n        directiveName = directive.name;\n\n        // If we encounter a condition that can result in transclusion on the directive,\n        // then scan ahead in the remaining directives for others that may cause a multiple\n        // transclusion error to be thrown during the compilation process.  If a matching directive\n        // is found, then we know that when we encounter a transcluded directive, we need to eagerly\n        // compile the `transclude` function rather than doing it lazily in order to throw\n        // exceptions at the correct time\n        if (!didScanForMultipleTransclusion && ((directive.replace && (directive.templateUrl || directive.template))\n            || (directive.transclude && !directive.$$tlb))) {\n                var candidateDirective;\n\n                for (var scanningIndex = i + 1; (candidateDirective = directives[scanningIndex++]);) {\n                    if ((candidateDirective.transclude && !candidateDirective.$$tlb)\n                        || (candidateDirective.replace && (candidateDirective.templateUrl || candidateDirective.template))) {\n                        mightHaveMultipleTransclusionError = true;\n                        break;\n                    }\n                }\n\n                didScanForMultipleTransclusion = true;\n        }\n\n        if (!directive.templateUrl && directive.controller) {\n          controllerDirectives = controllerDirectives || createMap();\n          assertNoDuplicate('\\'' + directiveName + '\\' controller',\n              controllerDirectives[directiveName], directive, $compileNode);\n          controllerDirectives[directiveName] = directive;\n        }\n\n        directiveValue = directive.transclude;\n\n        if (directiveValue) {\n          hasTranscludeDirective = true;\n\n          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n          // This option should only be used by directives that know how to safely handle element transclusion,\n          // where the transcluded nodes are added or replaced after linking.\n          if (!directive.$$tlb) {\n            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n            nonTlbTranscludeDirective = directive;\n          }\n\n          if (directiveValue === 'element') {\n            hasElementTranscludeDirective = true;\n            terminalPriority = directive.priority;\n            $template = $compileNode;\n            $compileNode = templateAttrs.$$element =\n                jqLite(compile.$$createComment(directiveName, templateAttrs[directiveName]));\n            compileNode = $compileNode[0];\n            replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, terminalPriority,\n                                        replaceDirective && replaceDirective.name, {\n                                          // Don't pass in:\n                                          // - controllerDirectives - otherwise we'll create duplicates controllers\n                                          // - newIsolateScopeDirective or templateDirective - combining templates with\n                                          //   element transclusion doesn't make sense.\n                                          //\n                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n                                          // on the same element more than once.\n                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective\n                                        });\n          } else {\n\n            var slots = createMap();\n\n            if (!isObject(directiveValue)) {\n              $template = jqLite(jqLiteClone(compileNode)).contents();\n            } else {\n\n              // We have transclusion slots,\n              // collect them up, compile them and store their transclusion functions\n              $template = window.document.createDocumentFragment();\n\n              var slotMap = createMap();\n              var filledSlots = createMap();\n\n              // Parse the element selectors\n              forEach(directiveValue, function(elementSelector, slotName) {\n                // If an element selector starts with a ? then it is optional\n                var optional = (elementSelector.charAt(0) === '?');\n                elementSelector = optional ? elementSelector.substring(1) : elementSelector;\n\n                slotMap[elementSelector] = slotName;\n\n                // We explicitly assign `null` since this implies that a slot was defined but not filled.\n                // Later when calling boundTransclusion functions with a slot name we only error if the\n                // slot is `undefined`\n                slots[slotName] = null;\n\n                // filledSlots contains `true` for all slots that are either optional or have been\n                // filled. This is used to check that we have not missed any required slots\n                filledSlots[slotName] = optional;\n              });\n\n              // Add the matching elements into their slot\n              forEach($compileNode.contents(), function(node) {\n                var slotName = slotMap[directiveNormalize(nodeName_(node))];\n                if (slotName) {\n                  filledSlots[slotName] = true;\n                  slots[slotName] = slots[slotName] || window.document.createDocumentFragment();\n                  slots[slotName].appendChild(node);\n                } else {\n                  $template.appendChild(node);\n                }\n              });\n\n              // Check for required slots that were not filled\n              forEach(filledSlots, function(filled, slotName) {\n                if (!filled) {\n                  throw $compileMinErr('reqslot', 'Required transclusion slot `{0}` was not filled.', slotName);\n                }\n              });\n\n              for (var slotName in slots) {\n                if (slots[slotName]) {\n                  // Only define a transclusion function if the slot was filled\n                  var slotCompileNodes = jqLite(slots[slotName].childNodes);\n                  slots[slotName] = compilationGenerator(mightHaveMultipleTransclusionError, slotCompileNodes, transcludeFn);\n                }\n              }\n\n              $template = jqLite($template.childNodes);\n            }\n\n            $compileNode.empty(); // clear contents\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, undefined,\n                undefined, { needsNewScope: directive.$$isolateScope || directive.$$newScope});\n            childTranscludeFn.$$slots = slots;\n          }\n        }\n\n        if (directive.template) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          directiveValue = (isFunction(directive.template))\n              ? directive.template($compileNode, templateAttrs)\n              : directive.template;\n\n          directiveValue = denormalizeTemplate(directiveValue);\n\n          if (directive.replace) {\n            replaceDirective = directive;\n            if (jqLiteIsTextNode(directiveValue)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  directiveName, '');\n            }\n\n            replaceWith(jqCollection, $compileNode, compileNode);\n\n            var newTemplateAttrs = {$attr: {}};\n\n            // combine directives from the original node and from the template:\n            // - take the array of directives for this element\n            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n            // - collect directives from the template and sort them by priority\n            // - combine directives as: processed + template + unprocessed\n            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n            if (newIsolateScopeDirective || newScopeDirective) {\n              // The original directive caused the current element to be replaced but this element\n              // also needs to have a new scope, so we need to tell the template directives\n              // that they would need to get their scope from further up, if they require transclusion\n              markDirectiveScope(templateDirectives, newIsolateScopeDirective, newScopeDirective);\n            }\n            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n            ii = directives.length;\n          } else {\n            $compileNode.html(directiveValue);\n          }\n        }\n\n        if (directive.templateUrl) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          if (directive.replace) {\n            replaceDirective = directive;\n          }\n\n          // eslint-disable-next-line no-func-assign\n          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n                controllerDirectives: controllerDirectives,\n                newScopeDirective: (newScopeDirective !== directive) && newScopeDirective,\n                newIsolateScopeDirective: newIsolateScopeDirective,\n                templateDirective: templateDirective,\n                nonTlbTranscludeDirective: nonTlbTranscludeDirective\n              });\n          ii = directives.length;\n        } else if (directive.compile) {\n          try {\n            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n            var context = directive.$$originalDirective || directive;\n            if (isFunction(linkFn)) {\n              addLinkFns(null, bind(context, linkFn), attrStart, attrEnd);\n            } else if (linkFn) {\n              addLinkFns(bind(context, linkFn.pre), bind(context, linkFn.post), attrStart, attrEnd);\n            }\n          } catch (e) {\n            $exceptionHandler(e, startingTag($compileNode));\n          }\n        }\n\n        if (directive.terminal) {\n          nodeLinkFn.terminal = true;\n          terminalPriority = Math.max(terminalPriority, directive.priority);\n        }\n\n      }\n\n      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n      nodeLinkFn.templateOnThisElement = hasTemplate;\n      nodeLinkFn.transclude = childTranscludeFn;\n\n      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n      // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n      return nodeLinkFn;\n\n      ////////////////////\n\n      function addLinkFns(pre, post, attrStart, attrEnd) {\n        if (pre) {\n          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n          pre.require = directive.require;\n          pre.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n          }\n          preLinkFns.push(pre);\n        }\n        if (post) {\n          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n          post.require = directive.require;\n          post.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            post = cloneAndAnnotateFn(post, {isolateScope: true});\n          }\n          postLinkFns.push(post);\n        }\n      }\n\n      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n        var i, ii, linkFn, isolateScope, controllerScope, elementControllers, transcludeFn, $element,\n            attrs, scopeBindingInfo;\n\n        if (compileNode === linkNode) {\n          attrs = templateAttrs;\n          $element = templateAttrs.$$element;\n        } else {\n          $element = jqLite(linkNode);\n          attrs = new Attributes($element, templateAttrs);\n        }\n\n        controllerScope = scope;\n        if (newIsolateScopeDirective) {\n          isolateScope = scope.$new(true);\n        } else if (newScopeDirective) {\n          controllerScope = scope.$parent;\n        }\n\n        if (boundTranscludeFn) {\n          // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`\n          // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`\n          transcludeFn = controllersBoundTransclude;\n          transcludeFn.$$boundTransclude = boundTranscludeFn;\n          // expose the slots on the `$transclude` function\n          transcludeFn.isSlotFilled = function(slotName) {\n            return !!boundTranscludeFn.$$slots[slotName];\n          };\n        }\n\n        if (controllerDirectives) {\n          elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective);\n        }\n\n        if (newIsolateScopeDirective) {\n          // Initialize isolate scope bindings for new isolate scope directive.\n          compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||\n              templateDirective === newIsolateScopeDirective.$$originalDirective)));\n          compile.$$addScopeClass($element, true);\n          isolateScope.$$isolateBindings =\n              newIsolateScopeDirective.$$isolateBindings;\n          scopeBindingInfo = initializeDirectiveBindings(scope, attrs, isolateScope,\n                                        isolateScope.$$isolateBindings,\n                                        newIsolateScopeDirective);\n          if (scopeBindingInfo.removeWatches) {\n            isolateScope.$on('$destroy', scopeBindingInfo.removeWatches);\n          }\n        }\n\n        // Initialize bindToController bindings\n        for (var name in elementControllers) {\n          var controllerDirective = controllerDirectives[name];\n          var controller = elementControllers[name];\n          var bindings = controllerDirective.$$bindings.bindToController;\n\n          controller.instance = controller();\n          $element.data('$' + controllerDirective.name + 'Controller', controller.instance);\n          controller.bindingInfo =\n            initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n          }\n\n        // Bind the required controllers to the controller, if `require` is an object and `bindToController` is truthy\n        forEach(controllerDirectives, function(controllerDirective, name) {\n          var require = controllerDirective.require;\n          if (controllerDirective.bindToController && !isArray(require) && isObject(require)) {\n            extend(elementControllers[name].instance, getControllers(name, require, $element, elementControllers));\n          }\n        });\n\n        // Handle the init and destroy lifecycle hooks on all controllers that have them\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$onChanges)) {\n            try {\n              controllerInstance.$onChanges(controller.bindingInfo.initialChanges);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$onInit)) {\n            try {\n              controllerInstance.$onInit();\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$doCheck)) {\n            controllerScope.$watch(function() { controllerInstance.$doCheck(); });\n            controllerInstance.$doCheck();\n          }\n          if (isFunction(controllerInstance.$onDestroy)) {\n            controllerScope.$on('$destroy', function callOnDestroyHook() {\n              controllerInstance.$onDestroy();\n            });\n          }\n        });\n\n        // PRELINKING\n        for (i = 0, ii = preLinkFns.length; i < ii; i++) {\n          linkFn = preLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // RECURSION\n        // We only pass the isolate scope, if the isolate directive has a template,\n        // otherwise the child elements do not belong to the isolate directive.\n        var scopeToChild = scope;\n        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n          scopeToChild = isolateScope;\n        }\n        if (childLinkFn) {\n          childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n        }\n\n        // POSTLINKING\n        for (i = postLinkFns.length - 1; i >= 0; i--) {\n          linkFn = postLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // Trigger $postLink lifecycle hooks\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$postLink)) {\n            controllerInstance.$postLink();\n          }\n        });\n\n        // This is the function that is injected as `$transclude`.\n        // Note: all arguments are optional!\n        function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement, slotName) {\n          var transcludeControllers;\n          // No scope passed in:\n          if (!isScope(scope)) {\n            slotName = futureParentElement;\n            futureParentElement = cloneAttachFn;\n            cloneAttachFn = scope;\n            scope = undefined;\n          }\n\n          if (hasElementTranscludeDirective) {\n            transcludeControllers = elementControllers;\n          }\n          if (!futureParentElement) {\n            futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;\n          }\n          if (slotName) {\n            // slotTranscludeFn can be one of three things:\n            //  * a transclude function - a filled slot\n            //  * `null` - an optional slot that was not filled\n            //  * `undefined` - a slot that was not declared (i.e. invalid)\n            var slotTranscludeFn = boundTranscludeFn.$$slots[slotName];\n            if (slotTranscludeFn) {\n              return slotTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n            } else if (isUndefined(slotTranscludeFn)) {\n              throw $compileMinErr('noslot',\n               'No parent directive that requires a transclusion with slot name \"{0}\". ' +\n               'Element: {1}',\n               slotName, startingTag($element));\n            }\n          } else {\n            return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n          }\n        }\n      }\n    }\n\n    function getControllers(directiveName, require, $element, elementControllers) {\n      var value;\n\n      if (isString(require)) {\n        var match = require.match(REQUIRE_PREFIX_REGEXP);\n        var name = require.substring(match[0].length);\n        var inheritType = match[1] || match[3];\n        var optional = match[2] === '?';\n\n        //If only parents then start at the parent element\n        if (inheritType === '^^') {\n          $element = $element.parent();\n        //Otherwise attempt getting the controller from elementControllers in case\n        //the element is transcluded (and has no data) and to avoid .data if possible\n        } else {\n          value = elementControllers && elementControllers[name];\n          value = value && value.instance;\n        }\n\n        if (!value) {\n          var dataName = '$' + name + 'Controller';\n\n          if (inheritType === '^^' && $element[0] && $element[0].nodeType === NODE_TYPE_DOCUMENT) {\n            // inheritedData() uses the documentElement when it finds the document, so we would\n            // require from the element itself.\n            value = null;\n          } else {\n            value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName);\n          }\n        }\n\n        if (!value && !optional) {\n          throw $compileMinErr('ctreq',\n              'Controller \\'{0}\\', required by directive \\'{1}\\', can\\'t be found!',\n              name, directiveName);\n        }\n      } else if (isArray(require)) {\n        value = [];\n        for (var i = 0, ii = require.length; i < ii; i++) {\n          value[i] = getControllers(directiveName, require[i], $element, elementControllers);\n        }\n      } else if (isObject(require)) {\n        value = {};\n        forEach(require, function(controller, property) {\n          value[property] = getControllers(directiveName, controller, $element, elementControllers);\n        });\n      }\n\n      return value || null;\n    }\n\n    function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective) {\n      var elementControllers = createMap();\n      for (var controllerKey in controllerDirectives) {\n        var directive = controllerDirectives[controllerKey];\n        var locals = {\n          $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n          $element: $element,\n          $attrs: attrs,\n          $transclude: transcludeFn\n        };\n\n        var controller = directive.controller;\n        if (controller === '@') {\n          controller = attrs[directive.name];\n        }\n\n        var controllerInstance = $controller(controller, locals, true, directive.controllerAs);\n\n        // For directives with element transclusion the element is a comment.\n        // In this case .data will not attach any data.\n        // Instead, we save the controllers for the element in a local hash and attach to .data\n        // later, once we have the actual element.\n        elementControllers[directive.name] = controllerInstance;\n        $element.data('$' + directive.name + 'Controller', controllerInstance.instance);\n      }\n      return elementControllers;\n    }\n\n    // Depending upon the context in which a directive finds itself it might need to have a new isolated\n    // or child scope created. For instance:\n    // * if the directive has been pulled into a template because another directive with a higher priority\n    // asked for element transclusion\n    // * if the directive itself asks for transclusion but it is at the root of a template and the original\n    // element was replaced. See https://github.com/angular/angular.js/issues/12936\n    function markDirectiveScope(directives, isolateScope, newScope) {\n      for (var j = 0, jj = directives.length; j < jj; j++) {\n        directives[j] = inherit(directives[j], {$$isolateScope: isolateScope, $$newScope: newScope});\n      }\n    }\n\n    /**\n     * looks up the directive and decorates it with exception handling and proper parameters. We\n     * call this the boundDirective.\n     *\n     * @param {string} name name of the directive to look up.\n     * @param {string} location The directive must be found in specific format.\n     *   String containing any of theses characters:\n     *\n     *   * `E`: element name\n     *   * `A': attribute\n     *   * `C`: class\n     *   * `M`: comment\n     * @returns {boolean} true if directive was added.\n     */\n    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n                          endAttrName) {\n      if (name === ignoreDirective) return null;\n      var match = null;\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if ((isUndefined(maxPriority) || maxPriority > directive.priority) &&\n               directive.restrict.indexOf(location) !== -1) {\n            if (startAttrName) {\n              directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n            }\n            if (!directive.$$bindings) {\n              var bindings = directive.$$bindings =\n                  parseDirectiveBindings(directive, directive.name);\n              if (isObject(bindings.isolateScope)) {\n                directive.$$isolateBindings = bindings.isolateScope;\n              }\n            }\n            tDirectives.push(directive);\n            match = directive;\n          }\n        }\n      }\n      return match;\n    }\n\n\n    /**\n     * looks up the directive and returns true if it is a multi-element directive,\n     * and therefore requires DOM nodes between -start and -end markers to be grouped\n     * together.\n     *\n     * @param {string} name name of the directive to look up.\n     * @returns true if directive was registered as multi-element.\n     */\n    function directiveIsMultiElement(name) {\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if (directive.multiElement) {\n            return true;\n          }\n        }\n      }\n      return false;\n    }\n\n    /**\n     * When the element is replaced with HTML template then the new attributes\n     * on the template need to be merged with the existing attributes in the DOM.\n     * The desired effect is to have both of the attributes present.\n     *\n     * @param {object} dst destination attributes (original DOM)\n     * @param {object} src source attributes (from the directive template)\n     */\n    function mergeTemplateAttributes(dst, src) {\n      var srcAttr = src.$attr,\n          dstAttr = dst.$attr;\n\n      // reapply the old attributes to the new element\n      forEach(dst, function(value, key) {\n        if (key.charAt(0) !== '$') {\n          if (src[key] && src[key] !== value) {\n            if (value.length) {\n              value += (key === 'style' ? ';' : ' ') + src[key];\n            } else {\n              value = src[key];\n            }\n          }\n          dst.$set(key, value, true, srcAttr[key]);\n        }\n      });\n\n      // copy the new attributes on the old attrs object\n      forEach(src, function(value, key) {\n        // Check if we already set this attribute in the loop above.\n        // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n        // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n        // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n        if (!dst.hasOwnProperty(key) && key.charAt(0) !== '$') {\n          dst[key] = value;\n\n          if (key !== 'class' && key !== 'style') {\n            dstAttr[key] = srcAttr[key];\n          }\n        }\n      });\n    }\n\n\n    function compileTemplateUrl(directives, $compileNode, tAttrs,\n        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n      var linkQueue = [],\n          afterTemplateNodeLinkFn,\n          afterTemplateChildLinkFn,\n          beforeTemplateCompileNode = $compileNode[0],\n          origAsyncDirective = directives.shift(),\n          derivedSyncDirective = inherit(origAsyncDirective, {\n            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n          }),\n          templateUrl = (isFunction(origAsyncDirective.templateUrl))\n              ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n              : origAsyncDirective.templateUrl,\n          templateNamespace = origAsyncDirective.templateNamespace;\n\n      $compileNode.empty();\n\n      $templateRequest(templateUrl)\n        .then(function(content) {\n          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n          content = denormalizeTemplate(content);\n\n          if (origAsyncDirective.replace) {\n            if (jqLiteIsTextNode(content)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(templateNamespace, trim(content)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  origAsyncDirective.name, templateUrl);\n            }\n\n            tempTemplateAttrs = {$attr: {}};\n            replaceWith($rootElement, $compileNode, compileNode);\n            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n            if (isObject(origAsyncDirective.scope)) {\n              // the original directive that caused the template to be loaded async required\n              // an isolate scope\n              markDirectiveScope(templateDirectives, true);\n            }\n            directives = templateDirectives.concat(directives);\n            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n          } else {\n            compileNode = beforeTemplateCompileNode;\n            $compileNode.html(content);\n          }\n\n          directives.unshift(derivedSyncDirective);\n\n          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n              previousCompileContext);\n          forEach($rootElement, function(node, i) {\n            if (node === compileNode) {\n              $rootElement[i] = $compileNode[0];\n            }\n          });\n          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n          while (linkQueue.length) {\n            var scope = linkQueue.shift(),\n                beforeTemplateLinkNode = linkQueue.shift(),\n                linkRootElement = linkQueue.shift(),\n                boundTranscludeFn = linkQueue.shift(),\n                linkNode = $compileNode[0];\n\n            if (scope.$$destroyed) continue;\n\n            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n              var oldClasses = beforeTemplateLinkNode.className;\n\n              if (!(previousCompileContext.hasElementTranscludeDirective &&\n                  origAsyncDirective.replace)) {\n                // it was cloned therefore we have to clone as well.\n                linkNode = jqLiteClone(compileNode);\n              }\n              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n              // Copy in CSS classes from original node\n              safeAddClass(jqLite(linkNode), oldClasses);\n            }\n            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n            } else {\n              childBoundTranscludeFn = boundTranscludeFn;\n            }\n            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n              childBoundTranscludeFn);\n          }\n          linkQueue = null;\n        }).catch(function(error) {\n          if (isError(error)) {\n            $exceptionHandler(error);\n          }\n        });\n\n      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n        var childBoundTranscludeFn = boundTranscludeFn;\n        if (scope.$$destroyed) return;\n        if (linkQueue) {\n          linkQueue.push(scope,\n                         node,\n                         rootElement,\n                         childBoundTranscludeFn);\n        } else {\n          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n          }\n          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n        }\n      };\n    }\n\n\n    /**\n     * Sorting function for bound directives.\n     */\n    function byPriority(a, b) {\n      var diff = b.priority - a.priority;\n      if (diff !== 0) return diff;\n      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n      return a.index - b.index;\n    }\n\n    function assertNoDuplicate(what, previousDirective, directive, element) {\n\n      function wrapModuleNameIfDefined(moduleName) {\n        return moduleName ?\n          (' (module: ' + moduleName + ')') :\n          '';\n      }\n\n      if (previousDirective) {\n        throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}',\n            previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName),\n            directive.name, wrapModuleNameIfDefined(directive.$$moduleName), what, startingTag(element));\n      }\n    }\n\n\n    function addTextInterpolateDirective(directives, text) {\n      var interpolateFn = $interpolate(text, true);\n      if (interpolateFn) {\n        directives.push({\n          priority: 0,\n          compile: function textInterpolateCompileFn(templateNode) {\n            var templateNodeParent = templateNode.parent(),\n                hasCompileParent = !!templateNodeParent.length;\n\n            // When transcluding a template that has bindings in the root\n            // we don't have a parent and thus need to add the class during linking fn.\n            if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);\n\n            return function textInterpolateLinkFn(scope, node) {\n              var parent = node.parent();\n              if (!hasCompileParent) compile.$$addBindingClass(parent);\n              compile.$$addBindingInfo(parent, interpolateFn.expressions);\n              scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n                node[0].nodeValue = value;\n              });\n            };\n          }\n        });\n      }\n    }\n\n\n    function wrapTemplate(type, template) {\n      type = lowercase(type || 'html');\n      switch (type) {\n      case 'svg':\n      case 'math':\n        var wrapper = window.document.createElement('div');\n        wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>';\n        return wrapper.childNodes[0].childNodes;\n      default:\n        return template;\n      }\n    }\n\n\n    function getTrustedAttrContext(nodeName, attrNormalizedName) {\n      if (attrNormalizedName === 'srcdoc') {\n        return $sce.HTML;\n      }\n      // All nodes with src attributes require a RESOURCE_URL value, except for\n      // img and various html5 media nodes, which require the MEDIA_URL context.\n      if (attrNormalizedName === 'src' || attrNormalizedName === 'ngSrc') {\n        if (['img', 'video', 'audio', 'source', 'track'].indexOf(nodeName) === -1) {\n          return $sce.RESOURCE_URL;\n        }\n        return $sce.MEDIA_URL;\n      } else if (attrNormalizedName === 'xlinkHref') {\n        // Some xlink:href are okay, most aren't\n        if (nodeName === 'image') return $sce.MEDIA_URL;\n        if (nodeName === 'a') return $sce.URL;\n        return $sce.RESOURCE_URL;\n      } else if (\n          // Formaction\n          (nodeName === 'form' && attrNormalizedName === 'action') ||\n          // If relative URLs can go where they are not expected to, then\n          // all sorts of trust issues can arise.\n          (nodeName === 'base' && attrNormalizedName === 'href') ||\n          // links can be stylesheets or imports, which can run script in the current origin\n          (nodeName === 'link' && attrNormalizedName === 'href')\n      ) {\n        return $sce.RESOURCE_URL;\n      } else if (nodeName === 'a' && (attrNormalizedName === 'href' ||\n                                 attrNormalizedName === 'ngHref')) {\n        return $sce.URL;\n      }\n    }\n\n    function getTrustedPropContext(nodeName, propNormalizedName) {\n      var prop = propNormalizedName.toLowerCase();\n      return PROP_CONTEXTS[nodeName + '|' + prop] || PROP_CONTEXTS['*|' + prop];\n    }\n\n    function sanitizeSrcsetPropertyValue(value) {\n      return sanitizeSrcset($sce.valueOf(value), 'ng-prop-srcset');\n    }\n    function addPropertyDirective(node, directives, attrName, propName) {\n      if (EVENT_HANDLER_ATTR_REGEXP.test(propName)) {\n        throw $compileMinErr('nodomevents', 'Property bindings for HTML DOM event properties are disallowed');\n      }\n\n      var nodeName = nodeName_(node);\n      var trustedContext = getTrustedPropContext(nodeName, propName);\n\n      var sanitizer = identity;\n      // Sanitize img[srcset] + source[srcset] values.\n      if (propName === 'srcset' && (nodeName === 'img' || nodeName === 'source')) {\n        sanitizer = sanitizeSrcsetPropertyValue;\n      } else if (trustedContext) {\n        sanitizer = $sce.getTrusted.bind($sce, trustedContext);\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function ngPropCompileFn(_, attr) {\n          var ngPropGetter = $parse(attr[attrName]);\n          var ngPropWatch = $parse(attr[attrName], function sceValueOf(val) {\n            // Unwrap the value to compare the actual inner safe value, not the wrapper object.\n            return $sce.valueOf(val);\n          });\n\n          return {\n            pre: function ngPropPreLinkFn(scope, $element) {\n              function applyPropValue() {\n                var propValue = ngPropGetter(scope);\n                $element[0][propName] = sanitizer(propValue);\n              }\n\n              applyPropValue();\n              scope.$watch(ngPropWatch, applyPropValue);\n            }\n          };\n        }\n      });\n    }\n\n    function addEventDirective(directives, attrName, eventName) {\n      directives.push(\n        createEventDirective($parse, $rootScope, $exceptionHandler, attrName, eventName, /*forceAsync=*/false)\n      );\n    }\n\n    function addAttrInterpolateDirective(node, directives, value, name, isNgAttr) {\n      var nodeName = nodeName_(node);\n      var trustedContext = getTrustedAttrContext(nodeName, name);\n      var mustHaveExpression = !isNgAttr;\n      var allOrNothing = ALL_OR_NOTHING_ATTRS[name] || isNgAttr;\n\n      var interpolateFn = $interpolate(value, mustHaveExpression, trustedContext, allOrNothing);\n\n      // no interpolation found -> ignore\n      if (!interpolateFn) return;\n\n      if (name === 'multiple' && nodeName === 'select') {\n        throw $compileMinErr('selmulti',\n            'Binding to the \\'multiple\\' attribute is not supported. Element: {0}',\n            startingTag(node));\n      }\n\n      if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n        throw $compileMinErr('nodomevents', 'Interpolations for HTML DOM event attributes are disallowed');\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function() {\n            return {\n              pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n                var $$observers = (attr.$$observers || (attr.$$observers = createMap()));\n\n                // If the attribute has changed since last $interpolate()ed\n                var newValue = attr[name];\n                if (newValue !== value) {\n                  // we need to interpolate again since the attribute value has been updated\n                  // (e.g. by another directive's compile function)\n                  // ensure unset/empty values make interpolateFn falsy\n                  interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);\n                  value = newValue;\n                }\n\n                // if attribute was updated so that there is no interpolation going on we don't want to\n                // register any observers\n                if (!interpolateFn) return;\n\n                // initialize attr object so that it's ready in case we need the value for isolate\n                // scope initialization, otherwise the value would not be available from isolate\n                // directive's linking fn during linking phase\n                attr[name] = interpolateFn(scope);\n\n                ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n                (attr.$$observers && attr.$$observers[name].$$scope || scope).\n                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n                    //special case for class attribute addition + removal\n                    //so that class changes can tap into the animation\n                    //hooks provided by the $animate service. Be sure to\n                    //skip animations when the first digest occurs (when\n                    //both the new and the old values are the same) since\n                    //the CSS classes are the non-interpolated values\n                    if (name === 'class' && newValue !== oldValue) {\n                      attr.$updateClass(newValue, oldValue);\n                    } else {\n                      attr.$set(name, newValue);\n                    }\n                  });\n              }\n            };\n          }\n      });\n    }\n\n\n    /**\n     * This is a special jqLite.replaceWith, which can replace items which\n     * have no parents, provided that the containing jqLite collection is provided.\n     *\n     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n     *                               in the root of the tree.\n     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n     *                                  the shell, but replace its DOM node reference.\n     * @param {Node} newNode The new DOM node.\n     */\n    function replaceWith($rootElement, elementsToRemove, newNode) {\n      var firstElementToRemove = elementsToRemove[0],\n          removeCount = elementsToRemove.length,\n          parent = firstElementToRemove.parentNode,\n          i, ii;\n\n      if ($rootElement) {\n        for (i = 0, ii = $rootElement.length; i < ii; i++) {\n          if ($rootElement[i] === firstElementToRemove) {\n            $rootElement[i++] = newNode;\n            for (var j = i, j2 = j + removeCount - 1,\n                     jj = $rootElement.length;\n                 j < jj; j++, j2++) {\n              if (j2 < jj) {\n                $rootElement[j] = $rootElement[j2];\n              } else {\n                delete $rootElement[j];\n              }\n            }\n            $rootElement.length -= removeCount - 1;\n\n            // If the replaced element is also the jQuery .context then replace it\n            // .context is a deprecated jQuery api, so we should set it only when jQuery set it\n            // http://api.jquery.com/context/\n            if ($rootElement.context === firstElementToRemove) {\n              $rootElement.context = newNode;\n            }\n            break;\n          }\n        }\n      }\n\n      if (parent) {\n        parent.replaceChild(newNode, firstElementToRemove);\n      }\n\n      // Append all the `elementsToRemove` to a fragment. This will...\n      // - remove them from the DOM\n      // - allow them to still be traversed with .nextSibling\n      // - allow a single fragment.qSA to fetch all elements being removed\n      var fragment = window.document.createDocumentFragment();\n      for (i = 0; i < removeCount; i++) {\n        fragment.appendChild(elementsToRemove[i]);\n      }\n\n      if (jqLite.hasData(firstElementToRemove)) {\n        // Copy over user data (that includes AngularJS's $scope etc.). Don't copy private\n        // data here because there's no public interface in jQuery to do that and copying over\n        // event listeners (which is the main use of private data) wouldn't work anyway.\n        jqLite.data(newNode, jqLite.data(firstElementToRemove));\n\n        // Remove $destroy event listeners from `firstElementToRemove`\n        jqLite(firstElementToRemove).off('$destroy');\n      }\n\n      // Cleanup any data/listeners on the elements and children.\n      // This includes invoking the $destroy event on any elements with listeners.\n      jqLite.cleanData(fragment.querySelectorAll('*'));\n\n      // Update the jqLite collection to only contain the `newNode`\n      for (i = 1; i < removeCount; i++) {\n        delete elementsToRemove[i];\n      }\n      elementsToRemove[0] = newNode;\n      elementsToRemove.length = 1;\n    }\n\n\n    function cloneAndAnnotateFn(fn, annotation) {\n      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n    }\n\n\n    function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {\n      try {\n        linkFn(scope, $element, attrs, controllers, transcludeFn);\n      } catch (e) {\n        $exceptionHandler(e, startingTag($element));\n      }\n    }\n\n    function strictBindingsCheck(attrName, directiveName) {\n      if (strictComponentBindingsEnabled) {\n        throw $compileMinErr('missingattr',\n          'Attribute \\'{0}\\' of \\'{1}\\' is non-optional and must be set!',\n          attrName, directiveName);\n      }\n    }\n\n    // Set up $watches for isolate scope and controller bindings.\n    function initializeDirectiveBindings(scope, attrs, destination, bindings, directive) {\n      var removeWatchCollection = [];\n      var initialChanges = {};\n      var changes;\n\n      forEach(bindings, function initializeBinding(definition, scopeName) {\n        var attrName = definition.attrName,\n        optional = definition.optional,\n        mode = definition.mode, // @, =, <, or &\n        lastValue,\n        parentGet, parentSet, compare, removeWatch;\n\n        switch (mode) {\n\n          case '@':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              strictBindingsCheck(attrName, directive.name);\n              destination[scopeName] = attrs[attrName] = undefined;\n\n            }\n            removeWatch = attrs.$observe(attrName, function(value) {\n              if (isString(value) || isBoolean(value)) {\n                var oldValue = destination[scopeName];\n                recordChanges(scopeName, value, oldValue);\n                destination[scopeName] = value;\n              }\n            });\n            attrs.$$observers[attrName].$$scope = scope;\n            lastValue = attrs[attrName];\n            if (isString(lastValue)) {\n              // If the attribute has been provided then we trigger an interpolation to ensure\n              // the value is there for use in the link fn\n              destination[scopeName] = $interpolate(lastValue)(scope);\n            } else if (isBoolean(lastValue)) {\n              // If the attributes is one of the BOOLEAN_ATTR then AngularJS will have converted\n              // the value to boolean rather than a string, so we special case this situation\n              destination[scopeName] = lastValue;\n            }\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '=':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              strictBindingsCheck(attrName, directive.name);\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            if (parentGet.literal) {\n              compare = equals;\n            } else {\n              compare = simpleCompare;\n            }\n            parentSet = parentGet.assign || function() {\n              // reset the change, or we will throw this exception on every $digest\n              lastValue = destination[scopeName] = parentGet(scope);\n              throw $compileMinErr('nonassign',\n                  'Expression \\'{0}\\' in attribute \\'{1}\\' used with directive \\'{2}\\' is non-assignable!',\n                  attrs[attrName], attrName, directive.name);\n            };\n            lastValue = destination[scopeName] = parentGet(scope);\n            var parentValueWatch = function parentValueWatch(parentValue) {\n              if (!compare(parentValue, destination[scopeName])) {\n                // we are out of sync and need to copy\n                if (!compare(parentValue, lastValue)) {\n                  // parent changed and it has precedence\n                  destination[scopeName] = parentValue;\n                } else {\n                  // if the parent can be assigned then do so\n                  parentSet(scope, parentValue = destination[scopeName]);\n                }\n              }\n              lastValue = parentValue;\n              return lastValue;\n            };\n            parentValueWatch.$stateful = true;\n            if (definition.collection) {\n              removeWatch = scope.$watchCollection(attrs[attrName], parentValueWatch);\n            } else {\n              removeWatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);\n            }\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '<':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              strictBindingsCheck(attrName, directive.name);\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            var isLiteral = parentGet.literal;\n\n            var initialValue = destination[scopeName] = parentGet(scope);\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n\n            removeWatch = scope[definition.collection ? '$watchCollection' : '$watch'](parentGet, function parentValueWatchAction(newValue, oldValue) {\n              if (oldValue === newValue) {\n                if (oldValue === initialValue || (isLiteral && equals(oldValue, initialValue))) {\n                  return;\n                }\n                oldValue = initialValue;\n              }\n              recordChanges(scopeName, newValue, oldValue);\n              destination[scopeName] = newValue;\n            });\n\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '&':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              strictBindingsCheck(attrName, directive.name);\n            }\n            // Don't assign Object.prototype method to scope\n            parentGet = attrs.hasOwnProperty(attrName) ? $parse(attrs[attrName]) : noop;\n\n            // Don't assign noop to destination if expression is not valid\n            if (parentGet === noop && optional) break;\n\n            destination[scopeName] = function(locals) {\n              return parentGet(scope, locals);\n            };\n            break;\n        }\n      });\n\n      function recordChanges(key, currentValue, previousValue) {\n        if (isFunction(destination.$onChanges) && !simpleCompare(currentValue, previousValue)) {\n          // If we have not already scheduled the top level onChangesQueue handler then do so now\n          if (!onChangesQueue) {\n            scope.$$postDigest(flushOnChangesQueue);\n            onChangesQueue = [];\n          }\n          // If we have not already queued a trigger of onChanges for this controller then do so now\n          if (!changes) {\n            changes = {};\n            onChangesQueue.push(triggerOnChangesHook);\n          }\n          // If the has been a change on this property already then we need to reuse the previous value\n          if (changes[key]) {\n            previousValue = changes[key].previousValue;\n          }\n          // Store this change\n          changes[key] = new SimpleChange(previousValue, currentValue);\n        }\n      }\n\n      function triggerOnChangesHook() {\n        destination.$onChanges(changes);\n        // Now clear the changes so that we schedule onChanges when more changes arrive\n        changes = undefined;\n      }\n\n      return {\n        initialChanges: initialChanges,\n        removeWatches: removeWatchCollection.length && function removeWatches() {\n          for (var i = 0, ii = removeWatchCollection.length; i < ii; ++i) {\n            removeWatchCollection[i]();\n          }\n        }\n      };\n    }\n  }];\n}\n\nfunction SimpleChange(previous, current) {\n  this.previousValue = previous;\n  this.currentValue = current;\n}\nSimpleChange.prototype.isFirstChange = function() { return this.previousValue === _UNINITIALIZED_VALUE; };\n\n\nvar PREFIX_REGEXP = /^((?:x|data)[:\\-_])/i;\nvar SPECIAL_CHARS_REGEXP = /[:\\-_]+(.)/g;\n\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n  return name\n    .replace(PREFIX_REGEXP, '')\n    .replace(SPECIAL_CHARS_REGEXP, function(_, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    });\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in AngularJS:\n *\n * ```\n *    <span ng:bind=\"a\" ng-bind=\"a\" data-ng-bind=\"a\" x-ng-bind=\"a\">\n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n *          property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n  /* angular.Scope */ scope,\n  /* NodeList */ nodeList,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction directiveLinkingFn(\n  /* nodesetLinkingFn */ nodesetLinkingFn,\n  /* angular.Scope */ scope,\n  /* Node */ node,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction tokenDifference(str1, str2) {\n  var values = '',\n      tokens1 = str1.split(/\\s+/),\n      tokens2 = str2.split(/\\s+/);\n\n  outer:\n  for (var i = 0; i < tokens1.length; i++) {\n    var token = tokens1[i];\n    for (var j = 0; j < tokens2.length; j++) {\n      if (token === tokens2[j]) continue outer;\n    }\n    values += (values.length > 0 ? ' ' : '') + token;\n  }\n  return values;\n}\n\nfunction removeComments(jqNodes) {\n  jqNodes = jqLite(jqNodes);\n  var i = jqNodes.length;\n\n  if (i <= 1) {\n    return jqNodes;\n  }\n\n  while (i--) {\n    var node = jqNodes[i];\n    if (node.nodeType === NODE_TYPE_COMMENT ||\n       (node.nodeType === NODE_TYPE_TEXT && node.nodeValue.trim() === '')) {\n         splice.call(jqNodes, i, 1);\n    }\n  }\n  return jqNodes;\n}\n\nvar $controllerMinErr = minErr('$controller');\n\n\nvar CNTRL_REG = /^(\\S+)(\\s+as\\s+([\\w$]+))?$/;\nfunction identifierForController(controller, ident) {\n  if (ident && isString(ident)) return ident;\n  if (isString(controller)) {\n    var match = CNTRL_REG.exec(controller);\n    if (match) return match[3];\n  }\n}\n\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @this\n *\n * @description\n * The {@link ng.$controller $controller service} is used by AngularJS to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n  var controllers = {};\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#has\n   * @param {string} name Controller name to check.\n   */\n  this.has = function(name) {\n    return controllers.hasOwnProperty(name);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#register\n   * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n   *    the names and the values are the constructors.\n   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n   *    annotations in the array notation).\n   */\n  this.register = function(name, constructor) {\n    assertNotHasOwnProperty(name, 'controller');\n    if (isObject(name)) {\n      extend(controllers, name);\n    } else {\n      controllers[name] = constructor;\n    }\n  };\n\n  this.$get = ['$injector', function($injector) {\n\n    /**\n     * @ngdoc service\n     * @name $controller\n     * @requires $injector\n     *\n     * @param {Function|string} constructor If called with a function then it's considered to be the\n     *    controller constructor function. Otherwise it's considered to be a string which is used\n     *    to retrieve the controller constructor using the following steps:\n     *\n     *    * check if a controller with given name is registered via `$controllerProvider`\n     *    * check if evaluating the string on the current scope returns a constructor\n     *\n     *    The string can use the `controller as property` syntax, where the controller instance is published\n     *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n     *    to work correctly.\n     *\n     * @param {Object} locals Injection locals for Controller.\n     * @return {Object} Instance of given controller.\n     *\n     * @description\n     * `$controller` service is responsible for instantiating controllers.\n     *\n     * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n     */\n    return function $controller(expression, locals, later, ident) {\n      // PRIVATE API:\n      //   param `later` --- indicates that the controller's constructor is invoked at a later time.\n      //                     If true, $controller will allocate the object with the correct\n      //                     prototype chain, but will not invoke the controller until a returned\n      //                     callback is invoked.\n      //   param `ident` --- An optional label which overrides the label parsed from the controller\n      //                     expression, if any.\n      var instance, match, constructor, identifier;\n      later = later === true;\n      if (ident && isString(ident)) {\n        identifier = ident;\n      }\n\n      if (isString(expression)) {\n        match = expression.match(CNTRL_REG);\n        if (!match) {\n          throw $controllerMinErr('ctrlfmt',\n            'Badly formed controller string \\'{0}\\'. ' +\n            'Must match `__name__ as __id__` or `__name__`.', expression);\n        }\n        constructor = match[1];\n        identifier = identifier || match[3];\n        expression = controllers.hasOwnProperty(constructor)\n            ? controllers[constructor]\n            : getter(locals.$scope, constructor, true);\n\n        if (!expression) {\n          throw $controllerMinErr('ctrlreg',\n            'The controller with the name \\'{0}\\' is not registered.', constructor);\n        }\n\n        assertArgFn(expression, constructor, true);\n      }\n\n      if (later) {\n        // Instantiate controller later:\n        // This machinery is used to create an instance of the object before calling the\n        // controller's constructor itself.\n        //\n        // This allows properties to be added to the controller before the constructor is\n        // invoked. Primarily, this is used for isolate scope bindings in $compile.\n        //\n        // This feature is not intended for use by applications, and is thus not documented\n        // publicly.\n        // Object creation: http://jsperf.com/create-constructor/2\n        var controllerPrototype = (isArray(expression) ?\n          expression[expression.length - 1] : expression).prototype;\n        instance = Object.create(controllerPrototype || null);\n\n        if (identifier) {\n          addIdentifier(locals, identifier, instance, constructor || expression.name);\n        }\n\n        return extend(function $controllerInit() {\n          var result = $injector.invoke(expression, instance, locals, constructor);\n          if (result !== instance && (isObject(result) || isFunction(result))) {\n            instance = result;\n            if (identifier) {\n              // If result changed, re-assign controllerAs value to scope.\n              addIdentifier(locals, identifier, instance, constructor || expression.name);\n            }\n          }\n          return instance;\n        }, {\n          instance: instance,\n          identifier: identifier\n        });\n      }\n\n      instance = $injector.instantiate(expression, locals, constructor);\n\n      if (identifier) {\n        addIdentifier(locals, identifier, instance, constructor || expression.name);\n      }\n\n      return instance;\n    };\n\n    function addIdentifier(locals, identifier, instance, name) {\n      if (!(locals && isObject(locals.$scope))) {\n        throw minErr('$controller')('noscp',\n          'Cannot export controller \\'{0}\\' as \\'{1}\\'! No $scope object provided via `locals`.',\n          name, identifier);\n      }\n\n      locals.$scope[identifier] = instance;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n * @this\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n   <example module=\"documentExample\" name=\"document\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <p>$document title: <b ng-bind=\"title\"></b></p>\n         <p>window.document title: <b ng-bind=\"windowTitle\"></b></p>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('documentExample', [])\n         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {\n           $scope.title = $document[0].title;\n           $scope.windowTitle = angular.element(window.document)[0].title;\n         }]);\n     </file>\n   </example>\n */\nfunction $DocumentProvider() {\n  this.$get = ['$window', function(window) {\n    return jqLite(window.document);\n  }];\n}\n\n\n/**\n * @private\n * @this\n * Listens for document visibility change and makes the current status accessible.\n */\nfunction $$IsDocumentHiddenProvider() {\n  this.$get = ['$document', '$rootScope', function($document, $rootScope) {\n    var doc = $document[0];\n    var hidden = doc && doc.hidden;\n\n    $document.on('visibilitychange', changeListener);\n\n    $rootScope.$on('$destroy', function() {\n      $document.off('visibilitychange', changeListener);\n    });\n\n    function changeListener() {\n      hidden = doc.hidden;\n    }\n\n    return function() {\n      return hidden;\n    };\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n * @requires ng.$log\n * @this\n *\n * @description\n * Any uncaught exception in AngularJS expressions is delegated to this service.\n * The default implementation simply delegates to `$log.error` which logs it into\n * the browser console.\n *\n * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by\n * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.\n *\n * ## Example:\n *\n * The example below will overwrite the default `$exceptionHandler` in order to (a) log uncaught\n * errors to the backend for later inspection by the developers and (b) to use `$log.warn()` instead\n * of `$log.error()`.\n *\n * ```js\n *   angular.\n *     module('exceptionOverwrite', []).\n *     factory('$exceptionHandler', ['$log', 'logErrorsToBackend', function($log, logErrorsToBackend) {\n *       return function myExceptionHandler(exception, cause) {\n *         logErrorsToBackend(exception, cause);\n *         $log.warn(exception, cause);\n *       };\n *     }]);\n * ```\n *\n * <hr />\n * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`\n * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}\n * (unless executed during a digest).\n *\n * If you wish, you can manually delegate exceptions, e.g.\n * `try { ... } catch(e) { $exceptionHandler(e); }`\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause Optional information about the context in which\n *       the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n  this.$get = ['$log', function($log) {\n    return function(exception, cause) {\n      $log.error.apply($log, arguments);\n    };\n  }];\n}\n\nvar $$ForceReflowProvider = /** @this */ function() {\n  this.$get = ['$document', function($document) {\n    return function(domNode) {\n      //the line below will force the browser to perform a repaint so\n      //that all the animated elements within the animation frame will\n      //be properly updated and drawn on screen. This is required to\n      //ensure that the preparation animation is properly flushed so that\n      //the active state picks up from there. DO NOT REMOVE THIS LINE.\n      //DO NOT OPTIMIZE THIS LINE. THE MINIFIER WILL REMOVE IT OTHERWISE WHICH\n      //WILL RESULT IN AN UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND\n      //WILL TAKE YEARS AWAY FROM YOUR LIFE.\n      if (domNode) {\n        if (!domNode.nodeType && domNode instanceof jqLite) {\n          domNode = domNode[0];\n        }\n      } else {\n        domNode = $document[0].body;\n      }\n      return domNode.offsetWidth + 1;\n    };\n  }];\n};\n\nvar APPLICATION_JSON = 'application/json';\nvar CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};\nvar JSON_START = /^\\[|^\\{(?!\\{)/;\nvar JSON_ENDS = {\n  '[': /]$/,\n  '{': /}$/\n};\nvar JSON_PROTECTION_PREFIX = /^\\)]\\}',?\\n/;\nvar $httpMinErr = minErr('$http');\n\nfunction serializeValue(v) {\n  if (isObject(v)) {\n    return isDate(v) ? v.toISOString() : toJson(v);\n  }\n  return v;\n}\n\n\n/** @this */\nfunction $HttpParamSerializerProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializer\n   * @description\n   *\n   * Default {@link $http `$http`} params serializer that converts objects to strings\n   * according to the following rules:\n   *\n   * * `{'foo': 'bar'}` results in `foo=bar`\n   * * `{'foo': Date.now()}` results in `foo=2015-04-01T09%3A50%3A49.262Z` (`toISOString()` and encoded representation of a Date object)\n   * * `{'foo': ['bar', 'baz']}` results in `foo=bar&foo=baz` (repeated key for each array element)\n   * * `{'foo': {'bar':'baz'}}` results in `foo=%7B%22bar%22%3A%22baz%22%7D` (stringified and encoded representation of an object)\n   *\n   * Note that serializer will sort the request parameters alphabetically.\n   */\n\n  this.$get = function() {\n    return function ngParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      forEachSorted(params, function(value, key) {\n        if (value === null || isUndefined(value) || isFunction(value)) return;\n        if (isArray(value)) {\n          forEach(value, function(v) {\n            parts.push(encodeUriQuery(key)  + '=' + encodeUriQuery(serializeValue(v)));\n          });\n        } else {\n          parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(value)));\n        }\n      });\n\n      return parts.join('&');\n    };\n  };\n}\n\n/** @this */\nfunction $HttpParamSerializerJQLikeProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializerJQLike\n   *\n   * @description\n   *\n   * Alternative {@link $http `$http`} params serializer that follows\n   * jQuery's [`param()`](http://api.jquery.com/jquery.param/) method logic.\n   * The serializer will also sort the params alphabetically.\n   *\n   * To use it for serializing `$http` request parameters, set it as the `paramSerializer` property:\n   *\n   * ```js\n   * $http({\n   *   url: myUrl,\n   *   method: 'GET',\n   *   params: myParams,\n   *   paramSerializer: '$httpParamSerializerJQLike'\n   * });\n   * ```\n   *\n   * It is also possible to set it as the default `paramSerializer` in the\n   * {@link $httpProvider#defaults `$httpProvider`}.\n   *\n   * Additionally, you can inject the serializer and use it explicitly, for example to serialize\n   * form data for submission:\n   *\n   * ```js\n   * .controller(function($http, $httpParamSerializerJQLike) {\n   *   //...\n   *\n   *   $http({\n   *     url: myUrl,\n   *     method: 'POST',\n   *     data: $httpParamSerializerJQLike(myData),\n   *     headers: {\n   *       'Content-Type': 'application/x-www-form-urlencoded'\n   *     }\n   *   });\n   *\n   * });\n   * ```\n   *\n   */\n  this.$get = function() {\n    return function jQueryLikeParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      serialize(params, '', true);\n      return parts.join('&');\n\n      function serialize(toSerialize, prefix, topLevel) {\n        if (isArray(toSerialize)) {\n          forEach(toSerialize, function(value, index) {\n            serialize(value, prefix + '[' + (isObject(value) ? index : '') + ']');\n          });\n        } else if (isObject(toSerialize) && !isDate(toSerialize)) {\n          forEachSorted(toSerialize, function(value, key) {\n            serialize(value, prefix +\n                (topLevel ? '' : '[') +\n                key +\n                (topLevel ? '' : ']'));\n          });\n        } else {\n          if (isFunction(toSerialize)) {\n            toSerialize = toSerialize();\n          }\n          parts.push(encodeUriQuery(prefix) + '=' +\n              (toSerialize == null ? '' : encodeUriQuery(serializeValue(toSerialize))));\n        }\n      }\n    };\n  };\n}\n\nfunction defaultHttpResponseTransform(data, headers) {\n  if (isString(data)) {\n    // Strip json vulnerability protection prefix and trim whitespace\n    var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();\n\n    if (tempData) {\n      var contentType = headers('Content-Type');\n      var hasJsonContentType = contentType && (contentType.indexOf(APPLICATION_JSON) === 0);\n\n      if (hasJsonContentType || isJsonLike(tempData)) {\n        try {\n          data = fromJson(tempData);\n        } catch (e) {\n          if (!hasJsonContentType) {\n            return data;\n          }\n          throw $httpMinErr('baddata', 'Data must be a valid JSON object. Received: \"{0}\". ' +\n          'Parse error: \"{1}\"', data, e);\n        }\n      }\n    }\n  }\n\n  return data;\n}\n\nfunction isJsonLike(str) {\n    var jsonStart = str.match(JSON_START);\n    return jsonStart && JSON_ENDS[jsonStart[0]].test(str);\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n  var parsed = createMap(), i;\n\n  function fillInParsed(key, val) {\n    if (key) {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  }\n\n  if (isString(headers)) {\n    forEach(headers.split('\\n'), function(line) {\n      i = line.indexOf(':');\n      fillInParsed(lowercase(trim(line.substr(0, i))), trim(line.substr(i + 1)));\n    });\n  } else if (isObject(headers)) {\n    forEach(headers, function(headerVal, headerKey) {\n      fillInParsed(lowercase(headerKey), trim(headerVal));\n    });\n  }\n\n  return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n *   - if called with an argument returns a single header value or null\n *   - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n  var headersObj;\n\n  return function(name) {\n    if (!headersObj) headersObj =  parseHeaders(headers);\n\n    if (name) {\n      var value = headersObj[lowercase(name)];\n      if (value === undefined) {\n        value = null;\n      }\n      return value;\n    }\n\n    return headersObj;\n  };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers HTTP headers getter fn.\n * @param {number} status HTTP status code of the response.\n * @param {(Function|Array.<Function>)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, status, fns) {\n  if (isFunction(fns)) {\n    return fns(data, headers, status);\n  }\n\n  forEach(fns, function(fn) {\n    data = fn(data, headers, status);\n  });\n\n  return data;\n}\n\n\nfunction isSuccess(status) {\n  return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @this\n *\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n */\nfunction $HttpProvider() {\n  /**\n   * @ngdoc property\n   * @name $httpProvider#defaults\n   * @description\n   *\n   * Object containing default values for all {@link ng.$http $http} requests.\n   *\n   * - **`defaults.cache`** - {boolean|Object} - A boolean value or object created with\n   * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of HTTP responses\n   * by default. See {@link $http#caching $http Caching} for more information.\n   *\n   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n   * setting default headers.\n   *     - **`defaults.headers.common`**\n   *     - **`defaults.headers.post`**\n   *     - **`defaults.headers.put`**\n   *     - **`defaults.headers.patch`**\n   *\n   * - **`defaults.jsonpCallbackParam`** - `{string}` - the name of the query parameter that passes the name of the\n   * callback in a JSONP request. The value of this parameter will be replaced with the expression generated by the\n   * {@link $jsonpCallbacks} service. Defaults to `'callback'`.\n   *\n   * - **`defaults.paramSerializer`** - `{string|function(Object<string,string>):string}` - A function\n   *  used to the prepare string representation of request parameters (specified as an object).\n   *  If specified as string, it is interpreted as a function registered with the {@link auto.$injector $injector}.\n   *  Defaults to {@link ng.$httpParamSerializer $httpParamSerializer}.\n   *\n   * - **`defaults.transformRequest`** -\n   * `{Array<function(data, headersGetter)>|function(data, headersGetter)}` -\n   * An array of functions (or a single function) which are applied to the request data.\n   * By default, this is an array with one request transformation function:\n   *\n   *   - If the `data` property of the request configuration object contains an object, serialize it\n   *     into JSON format.\n   *\n   * - **`defaults.transformResponse`** -\n   * `{Array<function(data, headersGetter, status)>|function(data, headersGetter, status)}` -\n   * An array of functions (or a single function) which are applied to the response data. By default,\n   * this is an array which applies one response transformation function that does two things:\n   *\n   *  - If XSRF prefix is detected, strip it\n   *    (see {@link ng.$http#security-considerations Security Considerations in the $http docs}).\n   *  - If the `Content-Type` is `application/json` or the response looks like JSON,\n   *    deserialize it using a JSON parser.\n   *\n   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n   * Defaults value is `'XSRF-TOKEN'`.\n   *\n   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n   *\n   */\n  var defaults = this.defaults = {\n    // transform incoming response data\n    transformResponse: [defaultHttpResponseTransform],\n\n    // transform outgoing request data\n    transformRequest: [function(d) {\n      return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;\n    }],\n\n    // default headers\n    headers: {\n      common: {\n        'Accept': 'application/json, text/plain, */*'\n      },\n      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n    },\n\n    xsrfCookieName: 'XSRF-TOKEN',\n    xsrfHeaderName: 'X-XSRF-TOKEN',\n\n    paramSerializer: '$httpParamSerializer',\n\n    jsonpCallbackParam: 'callback'\n  };\n\n  var useApplyAsync = false;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useApplyAsync\n   * @description\n   *\n   * Configure $http service to combine processing of multiple http responses received at around\n   * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in\n   * significant performance improvement for bigger applications that make many HTTP requests\n   * concurrently (common during application bootstrap).\n   *\n   * Defaults to false. If no value is specified, returns the current configured value.\n   *\n   * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred\n   *    \"apply\" on the next tick, giving time for subsequent requests in a roughly ~10ms window\n   *    to load and share the same digest cycle.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   */\n  this.useApplyAsync = function(value) {\n    if (isDefined(value)) {\n      useApplyAsync = !!value;\n      return this;\n    }\n    return useApplyAsync;\n  };\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#interceptors\n   * @description\n   *\n   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n   * pre-processing of request or postprocessing of responses.\n   *\n   * These service factories are ordered by request, i.e. they are applied in the same order as the\n   * array, on request, but reverse order, on response.\n   *\n   * {@link ng.$http#interceptors Interceptors detailed info}\n   */\n  var interceptorFactories = this.interceptors = [];\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#xsrfWhitelistedOrigins\n   * @description\n   *\n   * Array containing URLs whose origins are trusted to receive the XSRF token. See the\n   * {@link ng.$http#security-considerations Security Considerations} sections for more details on\n   * XSRF.\n   *\n   * **Note:** An \"origin\" consists of the [URI scheme](https://en.wikipedia.org/wiki/URI_scheme),\n   * the [hostname](https://en.wikipedia.org/wiki/Hostname) and the\n   * [port number](https://en.wikipedia.org/wiki/Port_(computer_networking). For `http:` and\n   * `https:`, the port number can be omitted if using th default ports (80 and 443 respectively).\n   * Examples: `http://example.com`, `https://api.example.com:9876`\n   *\n   * <div class=\"alert alert-warning\">\n   *   It is not possible to whitelist specific URLs/paths. The `path`, `query` and `fragment` parts\n   *   of a URL will be ignored. For example, `https://foo.com/path/bar?query=baz#fragment` will be\n   *   treated as `https://foo.com`, meaning that **all** requests to URLs starting with\n   *   `https://foo.com/` will include the XSRF token.\n   * </div>\n   *\n   * @example\n   *\n   * ```js\n   * // App served from `https://example.com/`.\n   * angular.\n   *   module('xsrfWhitelistedOriginsExample', []).\n   *   config(['$httpProvider', function($httpProvider) {\n   *     $httpProvider.xsrfWhitelistedOrigins.push('https://api.example.com');\n   *   }]).\n   *   run(['$http', function($http) {\n   *     // The XSRF token will be sent.\n   *     $http.get('https://api.example.com/preferences').then(...);\n   *\n   *     // The XSRF token will NOT be sent.\n   *     $http.get('https://stats.example.com/activity').then(...);\n   *   }]);\n   * ```\n   */\n  var xsrfWhitelistedOrigins = this.xsrfWhitelistedOrigins = [];\n\n  this.$get = ['$browser', '$httpBackend', '$$cookieReader', '$cacheFactory', '$rootScope', '$q', '$injector', '$sce',\n      function($browser, $httpBackend, $$cookieReader, $cacheFactory, $rootScope, $q, $injector, $sce) {\n\n    var defaultCache = $cacheFactory('$http');\n\n    /**\n     * Make sure that default param serializer is exposed as a function\n     */\n    defaults.paramSerializer = isString(defaults.paramSerializer) ?\n      $injector.get(defaults.paramSerializer) : defaults.paramSerializer;\n\n    /**\n     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n     * The reversal is needed so that we can build up the interception chain around the\n     * server request.\n     */\n    var reversedInterceptors = [];\n\n    forEach(interceptorFactories, function(interceptorFactory) {\n      reversedInterceptors.unshift(isString(interceptorFactory)\n          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n    });\n\n    /**\n     * A function to check request URLs against a list of allowed origins.\n     */\n    var urlIsAllowedOrigin = urlIsAllowedOriginFactory(xsrfWhitelistedOrigins);\n\n    /**\n     * @ngdoc service\n     * @kind function\n     * @name $http\n     * @requires ng.$httpBackend\n     * @requires $cacheFactory\n     * @requires $rootScope\n     * @requires $q\n     * @requires $injector\n     *\n     * @description\n     * The `$http` service is a core AngularJS service that facilitates communication with the remote\n     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n     *\n     * For unit testing applications that use `$http` service, see\n     * {@link ngMock.$httpBackend $httpBackend mock}.\n     *\n     * For a higher level of abstraction, please check out the {@link ngResource.$resource\n     * $resource} service.\n     *\n     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n     * it is important to familiarize yourself with these APIs and the guarantees they provide.\n     *\n     *\n     * ## General usage\n     * The `$http` service is a function which takes a single argument — a {@link $http#usage configuration object} —\n     * that is used to generate an HTTP request and returns  a {@link ng.$q promise} that is\n     * resolved (request success) or rejected (request failure) with a\n     * {@link ng.$http#$http-returns response} object.\n     *\n     * ```js\n     *   // Simple GET request example:\n     *   $http({\n     *     method: 'GET',\n     *     url: '/someUrl'\n     *   }).then(function successCallback(response) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }, function errorCallback(response) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     *\n     * ## Shortcut methods\n     *\n     * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n     * request data must be passed in for POST/PUT requests. An optional config can be passed as the\n     * last argument.\n     *\n     * ```js\n     *   $http.get('/someUrl', config).then(successCallback, errorCallback);\n     *   $http.post('/someUrl', data, config).then(successCallback, errorCallback);\n     * ```\n     *\n     * Complete list of shortcut methods:\n     *\n     * - {@link ng.$http#get $http.get}\n     * - {@link ng.$http#head $http.head}\n     * - {@link ng.$http#post $http.post}\n     * - {@link ng.$http#put $http.put}\n     * - {@link ng.$http#delete $http.delete}\n     * - {@link ng.$http#jsonp $http.jsonp}\n     * - {@link ng.$http#patch $http.patch}\n     *\n     *\n     * ## Writing Unit Tests that use $http\n     * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n     * request using trained responses.\n     *\n     * ```\n     * $httpBackend.expectGET(...);\n     * $http.get(...);\n     * $httpBackend.flush();\n     * ```\n     *\n     * ## Setting HTTP Headers\n     *\n     * The $http service will automatically add certain HTTP headers to all requests. These defaults\n     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n     * object, which currently contains this default configuration:\n     *\n     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n     *   - <code>Accept: application/json, text/plain, \\*&#65279;/&#65279;\\*</code>\n     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n     *   - `Content-Type: application/json`\n     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n     *   - `Content-Type: application/json`\n     *\n     * To add or overwrite these defaults, simply add or remove a property from these configuration\n     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n     * with the lowercased HTTP method name as the key, e.g.\n     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }`.\n     *\n     * The defaults can also be set at runtime via the `$http.defaults` object in the same\n     * fashion. For example:\n     *\n     * ```\n     * module.run(function($http) {\n     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w';\n     * });\n     * ```\n     *\n     * In addition, you can supply a `headers` property in the config object passed when\n     * calling `$http(config)`, which overrides the defaults without changing them globally.\n     *\n     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n     * Use the `headers` property, setting the desired header to `undefined`. For example:\n     *\n     * ```js\n     * var req = {\n     *  method: 'POST',\n     *  url: 'http://example.com',\n     *  headers: {\n     *    'Content-Type': undefined\n     *  },\n     *  data: { test: 'test' }\n     * }\n     *\n     * $http(req).then(function(){...}, function(){...});\n     * ```\n     *\n     * ## Transforming Requests and Responses\n     *\n     * Both requests and responses can be transformed using transformation functions: `transformRequest`\n     * and `transformResponse`. These properties can be a single function that returns\n     * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,\n     * which allows you to `push` or `unshift` a new transformation function into the transformation chain.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note:** AngularJS does not make a copy of the `data` parameter before it is passed into the `transformRequest` pipeline.\n     * That means changes to the properties of `data` are not local to the transform function (since Javascript passes objects by reference).\n     * For example, when calling `$http.get(url, $scope.myObject)`, modifications to the object's properties in a transformRequest\n     * function will be reflected on the scope and in any templates where the object is data-bound.\n     * To prevent this, transform functions should have no side-effects.\n     * If you need to modify properties, it is recommended to make a copy of the data, or create new object to return.\n     * </div>\n     *\n     * ### Default Transformations\n     *\n     * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and\n     * `defaults.transformResponse` properties. If a request does not provide its own transformations\n     * then these will be applied.\n     *\n     * You can augment or replace the default transformations by modifying these properties by adding to or\n     * replacing the array.\n     *\n     * AngularJS provides the following default transformations:\n     *\n     * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`) is\n     * an array with one function that does the following:\n     *\n     * - If the `data` property of the request configuration object contains an object, serialize it\n     *   into JSON format.\n     *\n     * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`) is\n     * an array with one function that does the following:\n     *\n     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).\n     *  - If the `Content-Type` is `application/json` or the response looks like JSON,\n   *      deserialize it using a JSON parser.\n     *\n     *\n     * ### Overriding the Default Transformations Per Request\n     *\n     * If you wish to override the request/response transformations only for a single request then provide\n     * `transformRequest` and/or `transformResponse` properties on the configuration object passed\n     * into `$http`.\n     *\n     * Note that if you provide these properties on the config object the default transformations will be\n     * overwritten. If you wish to augment the default transformations then you must include them in your\n     * local transformation array.\n     *\n     * The following code demonstrates adding a new response transformation to be run after the default response\n     * transformations have been run.\n     *\n     * ```js\n     * function appendTransform(defaults, transform) {\n     *\n     *   // We can't guarantee that the default transformation is an array\n     *   defaults = angular.isArray(defaults) ? defaults : [defaults];\n     *\n     *   // Append the new transformation to the defaults\n     *   return defaults.concat(transform);\n     * }\n     *\n     * $http({\n     *   url: '...',\n     *   method: 'GET',\n     *   transformResponse: appendTransform($http.defaults.transformResponse, function(value) {\n     *     return doTransform(value);\n     *   })\n     * });\n     * ```\n     *\n     *\n     * ## Caching\n     *\n     * {@link ng.$http `$http`} responses are not cached by default. To enable caching, you must\n     * set the config.cache value or the default cache value to TRUE or to a cache object (created\n     * with {@link ng.$cacheFactory `$cacheFactory`}). If defined, the value of config.cache takes\n     * precedence over the default cache value.\n     *\n     * In order to:\n     *   * cache all responses - set the default cache value to TRUE or to a cache object\n     *   * cache a specific response - set config.cache value to TRUE or to a cache object\n     *\n     * If caching is enabled, but neither the default cache nor config.cache are set to a cache object,\n     * then the default `$cacheFactory(\"$http\")` object is used.\n     *\n     * The default cache value can be set by updating the\n     * {@link ng.$http#defaults `$http.defaults.cache`} property or the\n     * {@link $httpProvider#defaults `$httpProvider.defaults.cache`} property.\n     *\n     * When caching is enabled, {@link ng.$http `$http`} stores the response from the server using\n     * the relevant cache object. The next time the same request is made, the response is returned\n     * from the cache without sending a request to the server.\n     *\n     * Take note that:\n     *\n     *   * Only GET and JSONP requests are cached.\n     *   * The cache key is the request URL including search parameters; headers are not considered.\n     *   * Cached responses are returned asynchronously, in the same way as responses from the server.\n     *   * If multiple identical requests are made using the same cache, which is not yet populated,\n     *     one request will be made to the server and remaining requests will return the same response.\n     *   * A cache-control header on the response does not affect if or how responses are cached.\n     *\n     *\n     * ## Interceptors\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication, or any kind of synchronous or\n     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n     * able to intercept requests before they are handed to the server and\n     * responses before they are handed over to the application code that\n     * initiated these requests. The interceptors leverage the {@link ng.$q\n     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n     *\n     * The interceptors are service factories that are registered with the `$httpProvider` by\n     * adding them to the `$httpProvider.interceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor.\n     *\n     * There are two kinds of interceptors (and two kinds of rejection interceptors):\n     *\n     *   * `request`: interceptors get called with a http {@link $http#usage config} object. The function is free to\n     *     modify the `config` object or create a new one. The function needs to return the `config`\n     *     object directly, or a promise containing the `config` or a new `config` object.\n     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *   * `response`: interceptors get called with http `response` object. The function is free to\n     *     modify the `response` object or create a new one. The function needs to return the `response`\n     *     object directly, or as a promise containing the `response` or a new `response` object.\n     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return {\n     *       // optional method\n     *       'request': function(config) {\n     *         // do something on success\n     *         return config;\n     *       },\n     *\n     *       // optional method\n     *      'requestError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       },\n     *\n     *\n     *\n     *       // optional method\n     *       'response': function(response) {\n     *         // do something on success\n     *         return response;\n     *       },\n     *\n     *       // optional method\n     *      'responseError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       }\n     *     };\n     *   });\n     *\n     *   $httpProvider.interceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // alternatively, register the interceptor via an anonymous factory\n     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n     *     return {\n     *      'request': function(config) {\n     *          // same as above\n     *       },\n     *\n     *       'response': function(response) {\n     *          // same as above\n     *       }\n     *     };\n     *   });\n     * ```\n     *\n     * ## Security Considerations\n     *\n     * When designing web applications, consider security threats from:\n     *\n     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n     *\n     * Both server and the client must cooperate in order to eliminate these threats. AngularJS comes\n     * pre-configured with strategies that address these issues, but for this to work backend server\n     * cooperation is required.\n     *\n     * ### JSON Vulnerability Protection\n     *\n     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * allows third party website to turn your JSON resource URL into\n     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n     * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n     * AngularJS will automatically strip the prefix before processing it as JSON.\n     *\n     * For example if your server needs to return:\n     * ```js\n     * ['one','two']\n     * ```\n     *\n     * which is vulnerable to attack, your server can return:\n     * ```js\n     * )]}',\n     * ['one','two']\n     * ```\n     *\n     * AngularJS will strip the prefix, before processing the JSON.\n     *\n     *\n     * ### Cross Site Request Forgery (XSRF) Protection\n     *\n     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is an attack technique by\n     * which the attacker can trick an authenticated user into unknowingly executing actions on your\n     * website. AngularJS provides a mechanism to counter XSRF. When performing XHR requests, the\n     * $http service reads a token from a cookie (by default, `XSRF-TOKEN`) and sets it as an HTTP\n     * header (by default `X-XSRF-TOKEN`). Since only JavaScript that runs on your domain could read\n     * the cookie, your server can be assured that the XHR came from JavaScript running on your\n     * domain.\n     *\n     * To take advantage of this, your server needs to set a token in a JavaScript readable session\n     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n     * server can verify that the cookie matches the `X-XSRF-TOKEN` HTTP header, and therefore be\n     * sure that only JavaScript running on your domain could have sent the request. The token must\n     * be unique for each user and must be verifiable by the server (to prevent the JavaScript from\n     * making up its own tokens). We recommend that the token is a digest of your site's\n     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)\n     * for added security.\n     *\n     * The header will &mdash; by default &mdash; **not** be set for cross-domain requests. This\n     * prevents unauthorized servers (e.g. malicious or compromised 3rd-party APIs) from gaining\n     * access to your users' XSRF tokens and exposing them to Cross Site Request Forgery. If you\n     * want to, you can whitelist additional origins to also receive the XSRF token, by adding them\n     * to {@link ng.$httpProvider#xsrfWhitelistedOrigins xsrfWhitelistedOrigins}. This might be\n     * useful, for example, if your application, served from `example.com`, needs to access your API\n     * at `api.example.com`.\n     * See {@link ng.$httpProvider#xsrfWhitelistedOrigins $httpProvider.xsrfWhitelistedOrigins} for\n     * more details.\n     *\n     * <div class=\"alert alert-danger\">\n     *   **Warning**<br />\n     *   Only whitelist origins that you have control over and make sure you understand the\n     *   implications of doing so.\n     * </div>\n     *\n     * The name of the cookie and the header can be specified using the `xsrfCookieName` and\n     * `xsrfHeaderName` properties of either `$httpProvider.defaults` at config-time,\n     * `$http.defaults` at run-time, or the per-request config object.\n     *\n     * In order to prevent collisions in environments where multiple AngularJS apps share the\n     * same domain or subdomain, we recommend that each application uses a unique cookie name.\n     *\n     *\n     * @param {object} config Object describing the request to be made and how it should be\n     *    processed. The object has following properties:\n     *\n     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n     *    - **url** – `{string|TrustedObject}` – Absolute or relative URL of the resource that is being requested;\n     *      or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be serialized\n     *      with the `paramSerializer` and appended as GET parameters.\n     *    - **data** – `{string|Object}` – Data to be sent as the request message data.\n     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing\n     *      HTTP headers to send to the server. If the return value of a function is null, the\n     *      header will not be sent. Functions accept a config object as an argument.\n     *    - **eventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest object.\n     *      To bind events to the XMLHttpRequest upload object, use `uploadEventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **uploadEventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest upload\n     *      object. To bind events to the XMLHttpRequest object, use `eventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n     *    - **transformRequest** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      request body and headers and returns its transformed (typically serialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **transformResponse** –\n     *      `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      response body, headers and status and returns its transformed (typically deserialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **paramSerializer** - `{string|function(Object<string,string>):string}` - A function used to\n     *      prepare the string representation of request parameters (specified as an object).\n     *      If specified as string, it is interpreted as function registered with the\n     *      {@link $injector $injector}, which means you can create your own serializer\n     *      by registering it as a {@link auto.$provide#service service}.\n     *      The default serializer is the {@link $httpParamSerializer $httpParamSerializer};\n     *      alternatively, you can use the {@link $httpParamSerializerJQLike $httpParamSerializerJQLike}\n     *    - **cache** – `{boolean|Object}` – A boolean value or object created with\n     *      {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response.\n     *      See {@link $http#caching $http Caching} for more information.\n     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n     *      that should abort the request when resolved.\n     *\n     *      A numerical timeout or a promise returned from {@link ng.$timeout $timeout}, will set\n     *      the `xhrStatus` in the {@link $http#$http-returns response} to \"timeout\", and any other\n     *      resolved promise will set it to \"abort\", following standard XMLHttpRequest behavior.\n     *\n     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n     *      for more information.\n     *    - **responseType** - `{string}` - see\n     *      [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#xmlhttprequest-responsetype).\n     *\n     * @returns {HttpPromise} A {@link ng.$q `Promise}` that will be resolved (request success)\n     *   or rejected (request failure) with a response object.\n     *\n     *   The response object has these properties:\n     *\n     *   - **data** – `{string|Object}` – The response body transformed with\n     *     the transform functions.\n     *   - **status** – `{number}` – HTTP status code of the response.\n     *   - **headers** – `{function([headerName])}` – Header getter function.\n     *   - **config** – `{Object}` – The configuration object that was used\n     *     to generate the request.\n     *   - **statusText** – `{string}` – HTTP status text of the response.\n     *   - **xhrStatus** – `{string}` – Status of the XMLHttpRequest\n     *     (`complete`, `error`, `timeout` or `abort`).\n     *\n     *\n     *   A response status code between 200 and 299 is considered a success status\n     *   and will result in the success callback being called. Any response status\n     *   code outside of that range is considered an error status and will result\n     *   in the error callback being called.\n     *   Also, status codes less than -1 are normalized to zero. -1 usually means\n     *   the request was aborted, e.g. using a `config.timeout`. More information\n     *   about the status might be available in the `xhrStatus` property.\n     *\n     *   Note that if the response is a redirect, XMLHttpRequest will transparently\n     *   follow it, meaning that the outcome (success or error) will be determined\n     *   by the final response status code.\n     *\n     *\n     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending\n     *   requests. This is primarily meant to be used for debugging purposes.\n     *\n     *\n     * @example\n<example module=\"httpExample\" name=\"http-service\">\n<file name=\"index.html\">\n  <div ng-controller=\"FetchController\">\n    <select ng-model=\"method\" aria-label=\"Request method\">\n      <option>GET</option>\n      <option>JSONP</option>\n    </select>\n    <input type=\"text\" ng-model=\"url\" size=\"80\" aria-label=\"URL\" />\n    <button id=\"fetchbtn\" ng-click=\"fetch()\">fetch</button><br>\n    <button id=\"samplegetbtn\" ng-click=\"updateModel('GET', 'http-hello.html')\">Sample GET</button>\n    <button id=\"samplejsonpbtn\"\n      ng-click=\"updateModel('JSONP',\n                    'https://angularjs.org/greet.php?name=Super%20Hero')\">\n      Sample JSONP\n    </button>\n    <button id=\"invalidjsonpbtn\"\n      ng-click=\"updateModel('JSONP', 'https://angularjs.org/doesntexist')\">\n        Invalid JSONP\n      </button>\n    <pre>http status code: {{status}}</pre>\n    <pre>http response data: {{data}}</pre>\n  </div>\n</file>\n<file name=\"script.js\">\n  angular.module('httpExample', [])\n    .config(['$sceDelegateProvider', function($sceDelegateProvider) {\n      // We must whitelist the JSONP endpoint that we are using to show that we trust it\n      $sceDelegateProvider.resourceUrlWhitelist([\n        'self',\n        'https://angularjs.org/**'\n      ]);\n    }])\n    .controller('FetchController', ['$scope', '$http', '$templateCache',\n      function($scope, $http, $templateCache) {\n        $scope.method = 'GET';\n        $scope.url = 'http-hello.html';\n\n        $scope.fetch = function() {\n          $scope.code = null;\n          $scope.response = null;\n\n          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).\n            then(function(response) {\n              $scope.status = response.status;\n              $scope.data = response.data;\n            }, function(response) {\n              $scope.data = response.data || 'Request failed';\n              $scope.status = response.status;\n          });\n        };\n\n        $scope.updateModel = function(method, url) {\n          $scope.method = method;\n          $scope.url = url;\n        };\n      }]);\n</file>\n<file name=\"http-hello.html\">\n  Hello, $http!\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  var status = element(by.binding('status'));\n  var data = element(by.binding('data'));\n  var fetchBtn = element(by.id('fetchbtn'));\n  var sampleGetBtn = element(by.id('samplegetbtn'));\n  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));\n\n  it('should make an xhr GET request', function() {\n    sampleGetBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('200');\n    expect(data.getText()).toMatch(/Hello, \\$http!/);\n  });\n\n// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185\n// it('should make a JSONP request to angularjs.org', function() {\n//   var sampleJsonpBtn = element(by.id('samplejsonpbtn'));\n//   sampleJsonpBtn.click();\n//   fetchBtn.click();\n//   expect(status.getText()).toMatch('200');\n//   expect(data.getText()).toMatch(/Super Hero!/);\n// });\n\n  it('should make JSONP request to invalid URL and invoke the error handler',\n      function() {\n    invalidJsonpBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('0');\n    expect(data.getText()).toMatch('Request failed');\n  });\n</file>\n</example>\n     */\n    function $http(requestConfig) {\n\n      if (!isObject(requestConfig)) {\n        throw minErr('$http')('badreq', 'Http request configuration must be an object.  Received: {0}', requestConfig);\n      }\n\n      if (!isString($sce.valueOf(requestConfig.url))) {\n        throw minErr('$http')('badreq', 'Http request configuration url must be a string or a $sce trusted object.  Received: {0}', requestConfig.url);\n      }\n\n      var config = extend({\n        method: 'get',\n        transformRequest: defaults.transformRequest,\n        transformResponse: defaults.transformResponse,\n        paramSerializer: defaults.paramSerializer,\n        jsonpCallbackParam: defaults.jsonpCallbackParam\n      }, requestConfig);\n\n      config.headers = mergeHeaders(requestConfig);\n      config.method = uppercase(config.method);\n      config.paramSerializer = isString(config.paramSerializer) ?\n          $injector.get(config.paramSerializer) : config.paramSerializer;\n\n      $browser.$$incOutstandingRequestCount('$http');\n\n      var requestInterceptors = [];\n      var responseInterceptors = [];\n      var promise = $q.resolve(config);\n\n      // apply interceptors\n      forEach(reversedInterceptors, function(interceptor) {\n        if (interceptor.request || interceptor.requestError) {\n          requestInterceptors.unshift(interceptor.request, interceptor.requestError);\n        }\n        if (interceptor.response || interceptor.responseError) {\n          responseInterceptors.push(interceptor.response, interceptor.responseError);\n        }\n      });\n\n      promise = chainInterceptors(promise, requestInterceptors);\n      promise = promise.then(serverRequest);\n      promise = chainInterceptors(promise, responseInterceptors);\n      promise = promise.finally(completeOutstandingRequest);\n\n      return promise;\n\n\n      function chainInterceptors(promise, interceptors) {\n        for (var i = 0, ii = interceptors.length; i < ii;) {\n          var thenFn = interceptors[i++];\n          var rejectFn = interceptors[i++];\n\n          promise = promise.then(thenFn, rejectFn);\n        }\n\n        interceptors.length = 0;\n\n        return promise;\n      }\n\n      function completeOutstandingRequest() {\n        $browser.$$completeOutstandingRequest(noop, '$http');\n      }\n\n      function executeHeaderFns(headers, config) {\n        var headerContent, processedHeaders = {};\n\n        forEach(headers, function(headerFn, header) {\n          if (isFunction(headerFn)) {\n            headerContent = headerFn(config);\n            if (headerContent != null) {\n              processedHeaders[header] = headerContent;\n            }\n          } else {\n            processedHeaders[header] = headerFn;\n          }\n        });\n\n        return processedHeaders;\n      }\n\n      function mergeHeaders(config) {\n        var defHeaders = defaults.headers,\n            reqHeaders = extend({}, config.headers),\n            defHeaderName, lowercaseDefHeaderName, reqHeaderName;\n\n        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);\n\n        // using for-in instead of forEach to avoid unnecessary iteration after header has been found\n        defaultHeadersIteration:\n        for (defHeaderName in defHeaders) {\n          lowercaseDefHeaderName = lowercase(defHeaderName);\n\n          for (reqHeaderName in reqHeaders) {\n            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {\n              continue defaultHeadersIteration;\n            }\n          }\n\n          reqHeaders[defHeaderName] = defHeaders[defHeaderName];\n        }\n\n        // execute if header value is a function for merged headers\n        return executeHeaderFns(reqHeaders, shallowCopy(config));\n      }\n\n      function serverRequest(config) {\n        var headers = config.headers;\n        var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest);\n\n        // strip content-type if data is undefined\n        if (isUndefined(reqData)) {\n          forEach(headers, function(value, header) {\n            if (lowercase(header) === 'content-type') {\n              delete headers[header];\n            }\n          });\n        }\n\n        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {\n          config.withCredentials = defaults.withCredentials;\n        }\n\n        // send request\n        return sendReq(config, reqData).then(transformResponse, transformResponse);\n      }\n\n      function transformResponse(response) {\n        // make a copy since the response must be cacheable\n        var resp = extend({}, response);\n        resp.data = transformData(response.data, response.headers, response.status,\n                                  config.transformResponse);\n        return (isSuccess(response.status))\n          ? resp\n          : $q.reject(resp);\n      }\n    }\n\n    $http.pendingRequests = [];\n\n    /**\n     * @ngdoc method\n     * @name $http#get\n     *\n     * @description\n     * Shortcut method to perform `GET` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#delete\n     *\n     * @description\n     * Shortcut method to perform `DELETE` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#head\n     *\n     * @description\n     * Shortcut method to perform `HEAD` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#jsonp\n     *\n     * @description\n     * Shortcut method to perform `JSONP` request.\n     *\n     * Note that, since JSONP requests are sensitive because the response is given full access to the browser,\n     * the url must be declared, via {@link $sce} as a trusted resource URL.\n     * You can trust a URL by adding it to the whitelist via\n     * {@link $sceDelegateProvider#resourceUrlWhitelist  `$sceDelegateProvider.resourceUrlWhitelist`} or\n     * by explicitly trusting the URL via {@link $sce#trustAsResourceUrl `$sce.trustAsResourceUrl(url)`}.\n     *\n     * You should avoid generating the URL for the JSONP request from user provided data.\n     * Provide additional query parameters via `params` property of the `config` parameter, rather than\n     * modifying the URL itself.\n     *\n     * JSONP requests must specify a callback to be used in the response from the server. This callback\n     * is passed as a query parameter in the request. You must specify the name of this parameter by\n     * setting the `jsonpCallbackParam` property on the request config object.\n     *\n     * ```\n     * $http.jsonp('some/trusted/url', {jsonpCallbackParam: 'callback'})\n     * ```\n     *\n     * You can also specify a default callback parameter name in `$http.defaults.jsonpCallbackParam`.\n     * Initially this is set to `'callback'`.\n     *\n     * <div class=\"alert alert-danger\">\n     * You can no longer use the `JSON_CALLBACK` string as a placeholder for specifying where the callback\n     * parameter value should go.\n     * </div>\n     *\n     * If you would like to customise where and how the callbacks are stored then try overriding\n     * or decorating the {@link $jsonpCallbacks} service.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n    createShortMethods('get', 'delete', 'head', 'jsonp');\n\n    /**\n     * @ngdoc method\n     * @name $http#post\n     *\n     * @description\n     * Shortcut method to perform `POST` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#put\n     *\n     * @description\n     * Shortcut method to perform `PUT` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n     /**\n      * @ngdoc method\n      * @name $http#patch\n      *\n      * @description\n      * Shortcut method to perform `PATCH` request.\n      *\n      * @param {string} url Relative or absolute URL specifying the destination of the request\n      * @param {*} data Request content\n      * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n      * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n      * See {@link ng.$http#$http-returns `$http()` return value}.\n      */\n    createShortMethodsWithData('post', 'put', 'patch');\n\n        /**\n         * @ngdoc property\n         * @name $http#defaults\n         *\n         * @description\n         * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of\n         * default headers, withCredentials as well as request and response transformations.\n         *\n         * See \"Setting HTTP Headers\" and \"Transforming Requests and Responses\" sections above.\n         */\n    $http.defaults = defaults;\n\n\n    return $http;\n\n\n    function createShortMethods(names) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url\n          }));\n        };\n      });\n    }\n\n\n    function createShortMethodsWithData(name) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, data, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url,\n            data: data\n          }));\n        };\n      });\n    }\n\n\n    /**\n     * Makes the request.\n     *\n     * !!! ACCESSES CLOSURE VARS:\n     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests\n     */\n    function sendReq(config, reqData) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          cache,\n          cachedResp,\n          reqHeaders = config.headers,\n          isJsonp = lowercase(config.method) === 'jsonp',\n          url = config.url;\n\n      if (isJsonp) {\n        // JSONP is a pretty sensitive operation where we're allowing a script to have full access to\n        // our DOM and JS space.  So we require that the URL satisfies SCE.RESOURCE_URL.\n        url = $sce.getTrustedResourceUrl(url);\n      } else if (!isString(url)) {\n        // If it is not a string then the URL must be a $sce trusted object\n        url = $sce.valueOf(url);\n      }\n\n      url = buildUrl(url, config.paramSerializer(config.params));\n\n      if (isJsonp) {\n        // Check the url and add the JSONP callback placeholder\n        url = sanitizeJsonpCallbackParam(url, config.jsonpCallbackParam);\n      }\n\n      $http.pendingRequests.push(config);\n      promise.then(removePendingReq, removePendingReq);\n\n      if ((config.cache || defaults.cache) && config.cache !== false &&\n          (config.method === 'GET' || config.method === 'JSONP')) {\n        cache = isObject(config.cache) ? config.cache\n            : isObject(/** @type {?} */ (defaults).cache)\n              ? /** @type {?} */ (defaults).cache\n              : defaultCache;\n      }\n\n      if (cache) {\n        cachedResp = cache.get(url);\n        if (isDefined(cachedResp)) {\n          if (isPromiseLike(cachedResp)) {\n            // cached request has already been sent, but there is no response yet\n            cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult);\n          } else {\n            // serving from cache\n            if (isArray(cachedResp)) {\n              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3], cachedResp[4]);\n            } else {\n              resolvePromise(cachedResp, 200, {}, 'OK', 'complete');\n            }\n          }\n        } else {\n          // put the promise for the non-transformed response into cache as a placeholder\n          cache.put(url, promise);\n        }\n      }\n\n\n      // if we won't have the response in cache, set the xsrf headers and\n      // send the request to the backend\n      if (isUndefined(cachedResp)) {\n        var xsrfValue = urlIsAllowedOrigin(config.url)\n            ? $$cookieReader()[config.xsrfCookieName || defaults.xsrfCookieName]\n            : undefined;\n        if (xsrfValue) {\n          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;\n        }\n\n        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,\n            config.withCredentials, config.responseType,\n            createApplyHandlers(config.eventHandlers),\n            createApplyHandlers(config.uploadEventHandlers));\n      }\n\n      return promise;\n\n      function createApplyHandlers(eventHandlers) {\n        if (eventHandlers) {\n          var applyHandlers = {};\n          forEach(eventHandlers, function(eventHandler, key) {\n            applyHandlers[key] = function(event) {\n              if (useApplyAsync) {\n                $rootScope.$applyAsync(callEventHandler);\n              } else if ($rootScope.$$phase) {\n                callEventHandler();\n              } else {\n                $rootScope.$apply(callEventHandler);\n              }\n\n              function callEventHandler() {\n                eventHandler(event);\n              }\n            };\n          });\n          return applyHandlers;\n        }\n      }\n\n\n      /**\n       * Callback registered to $httpBackend():\n       *  - caches the response if desired\n       *  - resolves the raw $http promise\n       *  - calls $apply\n       */\n      function done(status, response, headersString, statusText, xhrStatus) {\n        if (cache) {\n          if (isSuccess(status)) {\n            cache.put(url, [status, response, parseHeaders(headersString), statusText, xhrStatus]);\n          } else {\n            // remove promise from the cache\n            cache.remove(url);\n          }\n        }\n\n        function resolveHttpPromise() {\n          resolvePromise(response, status, headersString, statusText, xhrStatus);\n        }\n\n        if (useApplyAsync) {\n          $rootScope.$applyAsync(resolveHttpPromise);\n        } else {\n          resolveHttpPromise();\n          if (!$rootScope.$$phase) $rootScope.$apply();\n        }\n      }\n\n\n      /**\n       * Resolves the raw $http promise.\n       */\n      function resolvePromise(response, status, headers, statusText, xhrStatus) {\n        //status: HTTP response status code, 0, -1 (aborted by timeout / promise)\n        status = status >= -1 ? status : 0;\n\n        (isSuccess(status) ? deferred.resolve : deferred.reject)({\n          data: response,\n          status: status,\n          headers: headersGetter(headers),\n          config: config,\n          statusText: statusText,\n          xhrStatus: xhrStatus\n        });\n      }\n\n      function resolvePromiseWithResult(result) {\n        resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText, result.xhrStatus);\n      }\n\n      function removePendingReq() {\n        var idx = $http.pendingRequests.indexOf(config);\n        if (idx !== -1) $http.pendingRequests.splice(idx, 1);\n      }\n    }\n\n\n    function buildUrl(url, serializedParams) {\n      if (serializedParams.length > 0) {\n        url += ((url.indexOf('?') === -1) ? '?' : '&') + serializedParams;\n      }\n      return url;\n    }\n\n    function sanitizeJsonpCallbackParam(url, cbKey) {\n      var parts = url.split('?');\n      if (parts.length > 2) {\n        // Throw if the url contains more than one `?` query indicator\n        throw $httpMinErr('badjsonp', 'Illegal use more than one \"?\", in url, \"{1}\"', url);\n      }\n      var params = parseKeyValue(parts[1]);\n      forEach(params, function(value, key) {\n        if (value === 'JSON_CALLBACK') {\n          // Throw if the url already contains a reference to JSON_CALLBACK\n          throw $httpMinErr('badjsonp', 'Illegal use of JSON_CALLBACK in url, \"{0}\"', url);\n        }\n        if (key === cbKey) {\n          // Throw if the callback param was already provided\n          throw $httpMinErr('badjsonp', 'Illegal use of callback param, \"{0}\", in url, \"{1}\"', cbKey, url);\n        }\n      });\n\n      // Add in the JSON_CALLBACK callback param value\n      url += ((url.indexOf('?') === -1) ? '?' : '&') + cbKey + '=JSON_CALLBACK';\n\n      return url;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $xhrFactory\n * @this\n *\n * @description\n * Factory function used to create XMLHttpRequest objects.\n *\n * Replace or decorate this service to create your own custom XMLHttpRequest objects.\n *\n * ```\n * angular.module('myApp', [])\n * .factory('$xhrFactory', function() {\n *   return function createXhr(method, url) {\n *     return new window.XMLHttpRequest({mozSystem: true});\n *   };\n * });\n * ```\n *\n * @param {string} method HTTP method of the request (GET, POST, PUT, ..)\n * @param {string} url URL of the request.\n */\nfunction $xhrFactoryProvider() {\n  this.$get = function() {\n    return function createXhr() {\n      return new window.XMLHttpRequest();\n    };\n  };\n}\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @requires $jsonpCallbacks\n * @requires $document\n * @requires $xhrFactory\n * @this\n *\n * @description\n * HTTP backend used by the {@link ng.$http service} that delegates to\n * XMLHttpRequest object or JSONP and deals with browser incompatibilities.\n *\n * You should never need to use this service directly, instead use the higher-level abstractions:\n * {@link ng.$http $http} or {@link ngResource.$resource $resource}.\n *\n * During testing this implementation is swapped with {@link ngMock.$httpBackend mock\n * $httpBackend} which can be trained with responses.\n */\nfunction $HttpBackendProvider() {\n  this.$get = ['$browser', '$jsonpCallbacks', '$document', '$xhrFactory', function($browser, $jsonpCallbacks, $document, $xhrFactory) {\n    return createHttpBackend($browser, $xhrFactory, $browser.defer, $jsonpCallbacks, $document[0]);\n  }];\n}\n\nfunction createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {\n  // TODO(vojta): fix the signature\n  return function(method, url, post, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {\n    url = url || $browser.url();\n\n    if (lowercase(method) === 'jsonp') {\n      var callbackPath = callbacks.createCallback(url);\n      var jsonpDone = jsonpReq(url, callbackPath, function(status, text) {\n        // jsonpReq only ever sets status to 200 (OK), 404 (ERROR) or -1 (WAITING)\n        var response = (status === 200) && callbacks.getResponse(callbackPath);\n        completeRequest(callback, status, response, '', text, 'complete');\n        callbacks.removeCallback(callbackPath);\n      });\n    } else {\n\n      var xhr = createXhr(method, url);\n      var abortedByTimeout = false;\n\n      xhr.open(method, url, true);\n      forEach(headers, function(value, key) {\n        if (isDefined(value)) {\n            xhr.setRequestHeader(key, value);\n        }\n      });\n\n      xhr.onload = function requestLoaded() {\n        var statusText = xhr.statusText || '';\n\n        // responseText is the old-school way of retrieving response (supported by IE9)\n        // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)\n        var response = ('response' in xhr) ? xhr.response : xhr.responseText;\n\n        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)\n        var status = xhr.status === 1223 ? 204 : xhr.status;\n\n        // fix status code when it is 0 (0 status is undocumented).\n        // Occurs when accessing file resources or on Android 4.1 stock browser\n        // while retrieving files from application cache.\n        if (status === 0) {\n          status = response ? 200 : urlResolve(url).protocol === 'file' ? 404 : 0;\n        }\n\n        completeRequest(callback,\n            status,\n            response,\n            xhr.getAllResponseHeaders(),\n            statusText,\n            'complete');\n      };\n\n      var requestError = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '', 'error');\n      };\n\n      var requestAborted = function() {\n        completeRequest(callback, -1, null, null, '', abortedByTimeout ? 'timeout' : 'abort');\n      };\n\n      var requestTimeout = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '', 'timeout');\n      };\n\n      xhr.onerror = requestError;\n      xhr.ontimeout = requestTimeout;\n      xhr.onabort = requestAborted;\n\n      forEach(eventHandlers, function(value, key) {\n        xhr.addEventListener(key, value);\n      });\n\n      forEach(uploadEventHandlers, function(value, key) {\n        xhr.upload.addEventListener(key, value);\n      });\n\n      if (withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      if (responseType) {\n        try {\n          xhr.responseType = responseType;\n        } catch (e) {\n          // WebKit added support for the json responseType value on 09/03/2013\n          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are\n          // known to throw when setting the value \"json\" as the response type. Other older\n          // browsers implementing the responseType\n          //\n          // The json response type can be ignored if not supported, because JSON payloads are\n          // parsed on the client-side regardless.\n          if (responseType !== 'json') {\n            throw e;\n          }\n        }\n      }\n\n      xhr.send(isUndefined(post) ? null : post);\n    }\n\n    // Since we are using xhr.abort() when a request times out, we have to set a flag that\n    // indicates to requestAborted if the request timed out or was aborted.\n    //\n    // http.timeout = numerical timeout   timeout\n    // http.timeout = $timeout            timeout\n    // http.timeout = promise             abort\n    // xhr.abort()                        abort (The xhr object is normally inaccessible, but\n    //                                    can be exposed with the xhrFactory)\n    if (timeout > 0) {\n      var timeoutId = $browserDefer(function() {\n        timeoutRequest('timeout');\n      }, timeout);\n    } else if (isPromiseLike(timeout)) {\n      timeout.then(function() {\n        timeoutRequest(isDefined(timeout.$$timeoutId) ? 'timeout' : 'abort');\n      });\n    }\n\n    function timeoutRequest(reason) {\n      abortedByTimeout = reason === 'timeout';\n      if (jsonpDone) {\n        jsonpDone();\n      }\n      if (xhr) {\n        xhr.abort();\n      }\n    }\n\n    function completeRequest(callback, status, response, headersString, statusText, xhrStatus) {\n      // cancel timeout and subsequent timeout promise resolution\n      if (isDefined(timeoutId)) {\n        $browserDefer.cancel(timeoutId);\n      }\n      jsonpDone = xhr = null;\n\n      callback(status, response, headersString, statusText, xhrStatus);\n    }\n  };\n\n  function jsonpReq(url, callbackPath, done) {\n    url = url.replace('JSON_CALLBACK', callbackPath);\n    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:\n    // - fetches local scripts via XHR and evals them\n    // - adds and immediately removes script elements from the document\n    var script = rawDocument.createElement('script'), callback = null;\n    script.type = 'text/javascript';\n    script.src = url;\n    script.async = true;\n\n    callback = function(event) {\n      script.removeEventListener('load', callback);\n      script.removeEventListener('error', callback);\n      rawDocument.body.removeChild(script);\n      script = null;\n      var status = -1;\n      var text = 'unknown';\n\n      if (event) {\n        if (event.type === 'load' && !callbacks.wasCalled(callbackPath)) {\n          event = { type: 'error' };\n        }\n        text = event.type;\n        status = event.type === 'error' ? 404 : 200;\n      }\n\n      if (done) {\n        done(status, text);\n      }\n    };\n\n    script.addEventListener('load', callback);\n    script.addEventListener('error', callback);\n    rawDocument.body.appendChild(script);\n    return callback;\n  }\n}\n\nvar $interpolateMinErr = angular.$interpolateMinErr = minErr('$interpolate');\n$interpolateMinErr.throwNoconcat = function(text) {\n  throw $interpolateMinErr('noconcat',\n      'Error while interpolating: {0}\\nStrict Contextual Escaping disallows ' +\n      'interpolations that concatenate multiple expressions when a trusted value is ' +\n      'required.  See http://docs.angularjs.org/api/ng.$sce', text);\n};\n\n$interpolateMinErr.interr = function(text, err) {\n  return $interpolateMinErr('interr', 'Can\\'t interpolate: {0}\\n{1}', text, err.toString());\n};\n\n/**\n * @ngdoc provider\n * @name $interpolateProvider\n * @this\n *\n * @description\n *\n * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.\n *\n * <div class=\"alert alert-danger\">\n * This feature is sometimes used to mix different markup languages, e.g. to wrap an AngularJS\n * template within a Python Jinja template (or any other template language). Mixing templating\n * languages is **very dangerous**. The embedding template language will not safely escape AngularJS\n * expressions, so any user-controlled values in the template will cause Cross Site Scripting (XSS)\n * security bugs!\n * </div>\n *\n * @example\n<example name=\"custom-interpolation-markup\" module=\"customInterpolationApp\">\n<file name=\"index.html\">\n<script>\n  var customInterpolationApp = angular.module('customInterpolationApp', []);\n\n  customInterpolationApp.config(function($interpolateProvider) {\n    $interpolateProvider.startSymbol('//');\n    $interpolateProvider.endSymbol('//');\n  });\n\n\n  customInterpolationApp.controller('DemoController', function() {\n      this.label = \"This binding is brought you by // interpolation symbols.\";\n  });\n</script>\n<div ng-controller=\"DemoController as demo\">\n    //demo.label//\n</div>\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  it('should interpolate binding with custom symbols', function() {\n    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');\n  });\n</file>\n</example>\n */\nfunction $InterpolateProvider() {\n  var startSymbol = '{{';\n  var endSymbol = '}}';\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#startSymbol\n   * @description\n   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.\n   *\n   * @param {string=} value new value to set the starting symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.startSymbol = function(value) {\n    if (value) {\n      startSymbol = value;\n      return this;\n    }\n    return startSymbol;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#endSymbol\n   * @description\n   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n   *\n   * @param {string=} value new value to set the ending symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.endSymbol = function(value) {\n    if (value) {\n      endSymbol = value;\n      return this;\n    }\n    return endSymbol;\n  };\n\n\n  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {\n    var startSymbolLength = startSymbol.length,\n        endSymbolLength = endSymbol.length,\n        escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'),\n        escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g');\n\n    function escape(ch) {\n      return '\\\\\\\\\\\\' + ch;\n    }\n\n    function unescapeText(text) {\n      return text.replace(escapedStartRegexp, startSymbol).\n        replace(escapedEndRegexp, endSymbol);\n    }\n\n    // TODO: this is the same as the constantWatchDelegate in parse.js\n    function constantWatchDelegate(scope, listener, objectEquality, constantInterp) {\n      var unwatch = scope.$watch(function constantInterpolateWatch(scope) {\n        unwatch();\n        return constantInterp(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    /**\n     * @ngdoc service\n     * @name $interpolate\n     * @kind function\n     *\n     * @requires $parse\n     * @requires $sce\n     *\n     * @description\n     *\n     * Compiles a string with markup into an interpolation function. This service is used by the\n     * HTML {@link ng.$compile $compile} service for data binding. See\n     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the\n     * interpolation markup.\n     *\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var exp = $interpolate('Hello {{name | uppercase}}!');\n     *   expect(exp({name:'AngularJS'})).toEqual('Hello ANGULARJS!');\n     * ```\n     *\n     * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is\n     * `true`, the interpolation function will return `undefined` unless all embedded expressions\n     * evaluate to a value other than `undefined`.\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var context = {greeting: 'Hello', name: undefined };\n     *\n     *   // default \"forgiving\" mode\n     *   var exp = $interpolate('{{greeting}} {{name}}!');\n     *   expect(exp(context)).toEqual('Hello !');\n     *\n     *   // \"allOrNothing\" mode\n     *   exp = $interpolate('{{greeting}} {{name}}!', false, null, true);\n     *   expect(exp(context)).toBeUndefined();\n     *   context.name = 'AngularJS';\n     *   expect(exp(context)).toEqual('Hello AngularJS!');\n     * ```\n     *\n     * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior.\n     *\n     * #### Escaped Interpolation\n     * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers\n     * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash).\n     * It will be rendered as a regular start/end marker, and will not be interpreted as an expression\n     * or binding.\n     *\n     * This enables web-servers to prevent script injection attacks and defacing attacks, to some\n     * degree, while also enabling code examples to work without relying on the\n     * {@link ng.directive:ngNonBindable ngNonBindable} directive.\n     *\n     * **For security purposes, it is strongly encouraged that web servers escape user-supplied data,\n     * replacing angle brackets (&lt;, &gt;) with &amp;lt; and &amp;gt; respectively, and replacing all\n     * interpolation start/end markers with their escaped counterparts.**\n     *\n     * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered\n     * output when the $interpolate service processes the text. So, for HTML elements interpolated\n     * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter\n     * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such,\n     * this is typically useful only when user-data is used in rendering a template from the server, or\n     * when otherwise untrusted data is used by a directive.\n     *\n     * <example name=\"interpolation\">\n     *  <file name=\"index.html\">\n     *    <div ng-init=\"username='A user'\">\n     *      <p ng-init=\"apptitle='Escaping demo'\">{{apptitle}}: \\{\\{ username = \"defaced value\"; \\}\\}\n     *        </p>\n     *      <p><strong>{{username}}</strong> attempts to inject code which will deface the\n     *        application, but fails to accomplish their task, because the server has correctly\n     *        escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash)\n     *        characters.</p>\n     *      <p>Instead, the result of the attempted script injection is visible, and can be removed\n     *        from the database by an administrator.</p>\n     *    </div>\n     *  </file>\n     * </example>\n     *\n     * @knownIssue\n     * It is currently not possible for an interpolated expression to contain the interpolation end\n     * symbol. For example, `{{ '}}' }}` will be incorrectly interpreted as `{{ ' }}` + `' }}`, i.e.\n     * an interpolated expression consisting of a single-quote (`'`) and the `' }}` string.\n     *\n     * @knownIssue\n     * All directives and components must use the standard `{{` `}}` interpolation symbols\n     * in their templates. If you change the application interpolation symbols the {@link $compile}\n     * service will attempt to denormalize the standard symbols to the custom symbols.\n     * The denormalization process is not clever enough to know not to replace instances of the standard\n     * symbols where they would not normally be treated as interpolation symbols. For example in the following\n     * code snippet the closing braces of the literal object will get incorrectly denormalized:\n     *\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"}}\">\n     * ```\n     *\n     * The workaround is to ensure that such instances are separated by whitespace:\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"} }\">\n     * ```\n     *\n     * See https://github.com/angular/angular.js/pull/14610#issuecomment-219401099 for more information.\n     *\n     * @param {string} text The text with markup to interpolate.\n     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have\n     *    embedded expression in order to return an interpolation function. Strings with no\n     *    embedded expression will return null for the interpolation function.\n     * @param {string=} trustedContext when provided, the returned function passes the interpolated\n     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,\n     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that\n     *    provides Strict Contextual Escaping for details.\n     * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined\n     *    unless all embedded expressions evaluate to a value other than `undefined`.\n     * @returns {function(context)} an interpolation function which is used to compute the\n     *    interpolated string. The function has these parameters:\n     *\n     * - `context`: evaluation context for all expressions embedded in the interpolated text\n     */\n    function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {\n      var contextAllowsConcatenation = trustedContext === $sce.URL || trustedContext === $sce.MEDIA_URL;\n\n      // Provide a quick exit and simplified result function for text with no interpolation\n      if (!text.length || text.indexOf(startSymbol) === -1) {\n        if (mustHaveExpression) return;\n\n        var unescapedText = unescapeText(text);\n        if (contextAllowsConcatenation) {\n          unescapedText = $sce.getTrusted(trustedContext, unescapedText);\n        }\n        var constantInterp = valueFn(unescapedText);\n        constantInterp.exp = text;\n        constantInterp.expressions = [];\n        constantInterp.$$watchDelegate = constantWatchDelegate;\n\n        return constantInterp;\n      }\n\n      allOrNothing = !!allOrNothing;\n      var startIndex,\n          endIndex,\n          index = 0,\n          expressions = [],\n          parseFns,\n          textLength = text.length,\n          exp,\n          concat = [],\n          expressionPositions = [],\n          singleExpression;\n\n\n      while (index < textLength) {\n        if (((startIndex = text.indexOf(startSymbol, index)) !== -1) &&\n             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) !== -1)) {\n          if (index !== startIndex) {\n            concat.push(unescapeText(text.substring(index, startIndex)));\n          }\n          exp = text.substring(startIndex + startSymbolLength, endIndex);\n          expressions.push(exp);\n          index = endIndex + endSymbolLength;\n          expressionPositions.push(concat.length);\n          concat.push(''); // Placeholder that will get replaced with the evaluated expression.\n        } else {\n          // we did not find an interpolation, so we have to add the remainder to the separators array\n          if (index !== textLength) {\n            concat.push(unescapeText(text.substring(index)));\n          }\n          break;\n        }\n      }\n\n      singleExpression = concat.length === 1 && expressionPositions.length === 1;\n      // Intercept expression if we need to stringify concatenated inputs, which may be SCE trusted\n      // objects rather than simple strings\n      // (we don't modify the expression if the input consists of only a single trusted input)\n      var interceptor = contextAllowsConcatenation && singleExpression ? undefined : parseStringifyInterceptor;\n      parseFns = expressions.map(function(exp) { return $parse(exp, interceptor); });\n\n      // Concatenating expressions makes it hard to reason about whether some combination of\n      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a\n      // single expression be used for some $sce-managed secure contexts (RESOURCE_URLs mostly),\n      // we ensure that the value that's used is assigned or constructed by some JS code somewhere\n      // that is more testable or make it obvious that you bound the value to some user controlled\n      // value.  This helps reduce the load when auditing for XSS issues.\n\n      // Note that URL and MEDIA_URL $sce contexts do not need this, since `$sce` can sanitize the values\n      // passed to it. In that case, `$sce.getTrusted` will be called on either the single expression\n      // or on the overall concatenated string (losing trusted types used in the mix, by design).\n      // Both these methods will sanitize plain strings. Also, HTML could be included, but since it's\n      // only used in srcdoc attributes, this would not be very useful.\n\n      if (!mustHaveExpression || expressions.length) {\n        var compute = function(values) {\n          for (var i = 0, ii = expressions.length; i < ii; i++) {\n            if (allOrNothing && isUndefined(values[i])) return;\n            concat[expressionPositions[i]] = values[i];\n          }\n\n          if (contextAllowsConcatenation) {\n            // If `singleExpression` then `concat[0]` might be a \"trusted\" value or `null`, rather than a string\n            return $sce.getTrusted(trustedContext, singleExpression ? concat[0] : concat.join(''));\n          } else if (trustedContext && concat.length > 1) {\n            // This context does not allow more than one part, e.g. expr + string or exp + exp.\n            $interpolateMinErr.throwNoconcat(text);\n          }\n          // In an unprivileged context or only one part: just concatenate and return.\n          return concat.join('');\n        };\n\n        return extend(function interpolationFn(context) {\n            var i = 0;\n            var ii = expressions.length;\n            var values = new Array(ii);\n\n            try {\n              for (; i < ii; i++) {\n                values[i] = parseFns[i](context);\n              }\n\n              return compute(values);\n            } catch (err) {\n              $exceptionHandler($interpolateMinErr.interr(text, err));\n            }\n\n          }, {\n          // all of these properties are undocumented for now\n          exp: text, //just for compatibility with regular watchers created via $watch\n          expressions: expressions,\n          $$watchDelegate: function(scope, listener) {\n            var lastValue;\n            return scope.$watchGroup(parseFns, /** @this */ function interpolateFnWatcher(values, oldValues) {\n              var currValue = compute(values);\n              listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope);\n              lastValue = currValue;\n            });\n          }\n        });\n      }\n\n      function parseStringifyInterceptor(value) {\n        try {\n          // In concatenable contexts, getTrusted comes at the end, to avoid sanitizing individual\n          // parts of a full URL. We don't care about losing the trustedness here.\n          // In non-concatenable contexts, where there is only one expression, this interceptor is\n          // not applied to the expression.\n          value = (trustedContext && !contextAllowsConcatenation) ?\n                    $sce.getTrusted(trustedContext, value) :\n                    $sce.valueOf(value);\n          return allOrNothing && !isDefined(value) ? value : stringify(value);\n        } catch (err) {\n          $exceptionHandler($interpolateMinErr.interr(text, err));\n        }\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#startSymbol\n     * @description\n     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.\n     *\n     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} start symbol.\n     */\n    $interpolate.startSymbol = function() {\n      return startSymbol;\n    };\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#endSymbol\n     * @description\n     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n     *\n     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} end symbol.\n     */\n    $interpolate.endSymbol = function() {\n      return endSymbol;\n    };\n\n    return $interpolate;\n  }];\n}\n\nvar $intervalMinErr = minErr('$interval');\n\n/** @this */\nfunction $IntervalProvider() {\n  this.$get = ['$$intervalFactory', '$window',\n       function($$intervalFactory,   $window) {\n    var intervals = {};\n    var setIntervalFn = function(tick, delay, deferred) {\n      var id = $window.setInterval(tick, delay);\n      intervals[id] = deferred;\n      return id;\n    };\n    var clearIntervalFn = function(id) {\n      $window.clearInterval(id);\n      delete intervals[id];\n    };\n\n    /**\n     * @ngdoc service\n     * @name $interval\n     *\n     * @description\n     * AngularJS's wrapper for `window.setInterval`. The `fn` function is executed every `delay`\n     * milliseconds.\n     *\n     * The return value of registering an interval function is a promise. This promise will be\n     * notified upon each tick of the interval, and will be resolved after `count` iterations, or\n     * run indefinitely if `count` is not defined. The value of the notification will be the\n     * number of iterations that have run.\n     * To cancel an interval, call `$interval.cancel(promise)`.\n     *\n     * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n     * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n     * time.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note**: Intervals created by this service must be explicitly destroyed when you are finished\n     * with them.  In particular they are not automatically destroyed when a controller's scope or a\n     * directive's element are destroyed.\n     * You should take this into consideration and make sure to always cancel the interval at the\n     * appropriate moment.  See the example below for more details on how and when to do this.\n     * </div>\n     *\n     * @param {function()} fn A function that should be called repeatedly. If no additional arguments\n     *   are passed (see below), the function is called with the current iteration count.\n     * @param {number} delay Number of milliseconds between each function call.\n     * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n     *   indefinitely.\n     * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n     *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n     * @param {...*=} Pass additional parameters to the executed function.\n     * @returns {promise} A promise which will be notified on each iteration. It will resolve once all iterations of the interval complete.\n     *\n     * @example\n     * <example module=\"intervalExample\" name=\"interval-service\">\n     * <file name=\"index.html\">\n     *   <script>\n     *     angular.module('intervalExample', [])\n     *       .controller('ExampleController', ['$scope', '$interval',\n     *         function($scope, $interval) {\n     *           $scope.format = 'M/d/yy h:mm:ss a';\n     *           $scope.blood_1 = 100;\n     *           $scope.blood_2 = 120;\n     *\n     *           var stop;\n     *           $scope.fight = function() {\n     *             // Don't start a new fight if we are already fighting\n     *             if ( angular.isDefined(stop) ) return;\n     *\n     *             stop = $interval(function() {\n     *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {\n     *                 $scope.blood_1 = $scope.blood_1 - 3;\n     *                 $scope.blood_2 = $scope.blood_2 - 4;\n     *               } else {\n     *                 $scope.stopFight();\n     *               }\n     *             }, 100);\n     *           };\n     *\n     *           $scope.stopFight = function() {\n     *             if (angular.isDefined(stop)) {\n     *               $interval.cancel(stop);\n     *               stop = undefined;\n     *             }\n     *           };\n     *\n     *           $scope.resetFight = function() {\n     *             $scope.blood_1 = 100;\n     *             $scope.blood_2 = 120;\n     *           };\n     *\n     *           $scope.$on('$destroy', function() {\n     *             // Make sure that the interval is destroyed too\n     *             $scope.stopFight();\n     *           });\n     *         }])\n     *       // Register the 'myCurrentTime' directive factory method.\n     *       // We inject $interval and dateFilter service since the factory method is DI.\n     *       .directive('myCurrentTime', ['$interval', 'dateFilter',\n     *         function($interval, dateFilter) {\n     *           // return the directive link function. (compile function not needed)\n     *           return function(scope, element, attrs) {\n     *             var format,  // date format\n     *                 stopTime; // so that we can cancel the time updates\n     *\n     *             // used to update the UI\n     *             function updateTime() {\n     *               element.text(dateFilter(new Date(), format));\n     *             }\n     *\n     *             // watch the expression, and update the UI on change.\n     *             scope.$watch(attrs.myCurrentTime, function(value) {\n     *               format = value;\n     *               updateTime();\n     *             });\n     *\n     *             stopTime = $interval(updateTime, 1000);\n     *\n     *             // listen on DOM destroy (removal) event, and cancel the next UI update\n     *             // to prevent updating time after the DOM element was removed.\n     *             element.on('$destroy', function() {\n     *               $interval.cancel(stopTime);\n     *             });\n     *           }\n     *         }]);\n     *   </script>\n     *\n     *   <div>\n     *     <div ng-controller=\"ExampleController\">\n     *       <label>Date format: <input ng-model=\"format\"></label> <hr/>\n     *       Current time is: <span my-current-time=\"format\"></span>\n     *       <hr/>\n     *       Blood 1 : <font color='red'>{{blood_1}}</font>\n     *       Blood 2 : <font color='red'>{{blood_2}}</font>\n     *       <button type=\"button\" data-ng-click=\"fight()\">Fight</button>\n     *       <button type=\"button\" data-ng-click=\"stopFight()\">StopFight</button>\n     *       <button type=\"button\" data-ng-click=\"resetFight()\">resetFight</button>\n     *     </div>\n     *   </div>\n     *\n     * </file>\n     * </example>\n     */\n    var interval = $$intervalFactory(setIntervalFn, clearIntervalFn);\n\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {Promise=} promise returned by the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully canceled.\n     */\n    interval.cancel = function(promise) {\n      if (!promise) return false;\n\n      if (!promise.hasOwnProperty('$$intervalId')) {\n        throw $intervalMinErr('badprom',\n            '`$interval.cancel()` called with a promise that was not generated by `$interval()`.');\n      }\n\n      if (!intervals.hasOwnProperty(promise.$$intervalId)) return false;\n\n      var id = promise.$$intervalId;\n      var deferred = intervals[id];\n\n      // Interval cancels should not report an unhandled promise.\n      markQExceptionHandled(deferred.promise);\n      deferred.reject('canceled');\n      clearIntervalFn(id);\n\n      return true;\n    };\n\n    return interval;\n  }];\n}\n\n/** @this */\nfunction $$IntervalFactoryProvider() {\n  this.$get = ['$browser', '$q', '$$q', '$rootScope',\n       function($browser,   $q,   $$q,   $rootScope) {\n    return function intervalFactory(setIntervalFn, clearIntervalFn) {\n      return function intervalFn(fn, delay, count, invokeApply) {\n        var hasParams = arguments.length > 4,\n            args = hasParams ? sliceArgs(arguments, 4) : [],\n            iteration = 0,\n            skipApply = isDefined(invokeApply) && !invokeApply,\n            deferred = (skipApply ? $$q : $q).defer(),\n            promise = deferred.promise;\n\n        count = isDefined(count) ? count : 0;\n\n        function callback() {\n          if (!hasParams) {\n            fn(iteration);\n          } else {\n            fn.apply(null, args);\n          }\n        }\n\n        function tick() {\n          if (skipApply) {\n            $browser.defer(callback);\n          } else {\n            $rootScope.$evalAsync(callback);\n          }\n          deferred.notify(iteration++);\n\n          if (count > 0 && iteration >= count) {\n            deferred.resolve(iteration);\n            clearIntervalFn(promise.$$intervalId);\n          }\n\n          if (!skipApply) $rootScope.$apply();\n        }\n\n        promise.$$intervalId = setIntervalFn(tick, delay, deferred, skipApply);\n\n        return promise;\n      };\n    };\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $jsonpCallbacks\n * @requires $window\n * @description\n * This service handles the lifecycle of callbacks to handle JSONP requests.\n * Override this service if you wish to customise where the callbacks are stored and\n * how they vary compared to the requested url.\n */\nvar $jsonpCallbacksProvider = /** @this */ function() {\n  this.$get = function() {\n    var callbacks = angular.callbacks;\n    var callbackMap = {};\n\n    function createCallback(callbackId) {\n      var callback = function(data) {\n        callback.data = data;\n        callback.called = true;\n      };\n      callback.id = callbackId;\n      return callback;\n    }\n\n    return {\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#createCallback\n       * @param {string} url the url of the JSONP request\n       * @returns {string} the callback path to send to the server as part of the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to create a callback and get hold of the path to the callback\n       * to pass to the server, which will be used to call the callback with its payload in the JSONP response.\n       */\n      createCallback: function(url) {\n        var callbackId = '_' + (callbacks.$$counter++).toString(36);\n        var callbackPath = 'angular.callbacks.' + callbackId;\n        var callback = createCallback(callbackId);\n        callbackMap[callbackPath] = callbacks[callbackId] = callback;\n        return callbackPath;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#wasCalled\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {boolean} whether the callback has been called, as a result of the JSONP response\n       * @description\n       * {@link $httpBackend} calls this method to find out whether the JSONP response actually called the\n       * callback that was passed in the request.\n       */\n      wasCalled: function(callbackPath) {\n        return callbackMap[callbackPath].called;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#getResponse\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {*} the data received from the response via the registered callback\n       * @description\n       * {@link $httpBackend} calls this method to get hold of the data that was provided to the callback\n       * in the JSONP response.\n       */\n      getResponse: function(callbackPath) {\n        return callbackMap[callbackPath].data;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#removeCallback\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to remove the callback after the JSONP request has\n       * completed or timed-out.\n       */\n      removeCallback: function(callbackPath) {\n        var callback = callbackMap[callbackPath];\n        delete callbacks[callback.id];\n        delete callbackMap[callbackPath];\n      }\n    };\n  };\n};\n\n/**\n * @ngdoc service\n * @name $locale\n *\n * @description\n * $locale service provides localization rules for various AngularJS components. As of right now the\n * only public api is:\n *\n * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)\n */\n\n/* global stripHash: true */\n\nvar PATH_MATCH = /^([^?#]*)(\\?([^#]*))?(#(.*))?$/,\n    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};\nvar $locationMinErr = minErr('$location');\n\n\n/**\n * Encode path using encodeUriSegment, ignoring forward slashes\n *\n * @param {string} path Path to encode\n * @returns {string}\n */\nfunction encodePath(path) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    // decode forward slashes to prevent them from being double encoded\n    segments[i] = encodeUriSegment(segments[i].replace(/%2F/g, '/'));\n  }\n\n  return segments.join('/');\n}\n\nfunction decodePath(path, html5Mode) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    segments[i] = decodeURIComponent(segments[i]);\n    if (html5Mode) {\n      // encode forward slashes to prevent them from being mistaken for path separators\n      segments[i] = segments[i].replace(/\\//g, '%2F');\n    }\n  }\n\n  return segments.join('/');\n}\n\nfunction normalizePath(pathValue, searchValue, hashValue) {\n  var search = toKeyValue(searchValue),\n    hash = hashValue ? '#' + encodeUriSegment(hashValue) : '',\n    path = encodePath(pathValue);\n\n  return path + (search ? '?' + search : '') + hash;\n}\n\nfunction parseAbsoluteUrl(absoluteUrl, locationObj) {\n  var parsedUrl = urlResolve(absoluteUrl);\n\n  locationObj.$$protocol = parsedUrl.protocol;\n  locationObj.$$host = parsedUrl.hostname;\n  locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;\n}\n\nvar DOUBLE_SLASH_REGEX = /^\\s*[\\\\/]{2,}/;\nfunction parseAppUrl(url, locationObj, html5Mode) {\n\n  if (DOUBLE_SLASH_REGEX.test(url)) {\n    throw $locationMinErr('badpath', 'Invalid url \"{0}\".', url);\n  }\n\n  var prefixed = (url.charAt(0) !== '/');\n  if (prefixed) {\n    url = '/' + url;\n  }\n  var match = urlResolve(url);\n  var path = prefixed && match.pathname.charAt(0) === '/' ? match.pathname.substring(1) : match.pathname;\n  locationObj.$$path = decodePath(path, html5Mode);\n  locationObj.$$search = parseKeyValue(match.search);\n  locationObj.$$hash = decodeURIComponent(match.hash);\n\n  // make sure path starts with '/';\n  if (locationObj.$$path && locationObj.$$path.charAt(0) !== '/') {\n    locationObj.$$path = '/' + locationObj.$$path;\n  }\n}\n\nfunction startsWith(str, search) {\n  return str.slice(0, search.length) === search;\n}\n\n/**\n *\n * @param {string} base\n * @param {string} url\n * @returns {string} returns text from `url` after `base` or `undefined` if it does not begin with\n *                   the expected string.\n */\nfunction stripBaseUrl(base, url) {\n  if (startsWith(url, base)) {\n    return url.substr(base.length);\n  }\n}\n\nfunction stripHash(url) {\n  var index = url.indexOf('#');\n  return index === -1 ? url : url.substr(0, index);\n}\n\nfunction stripFile(url) {\n  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);\n}\n\n/* return the server only (scheme://host:port) */\nfunction serverBase(url) {\n  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));\n}\n\n\n/**\n * LocationHtml5Url represents a URL\n * This object is exposed as $location service when HTML5 mode is enabled and supported\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} basePrefix URL path prefix\n */\nfunction LocationHtml5Url(appBase, appBaseNoFile, basePrefix) {\n  this.$$html5 = true;\n  basePrefix = basePrefix || '';\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given HTML5 (regular) URL string into properties\n   * @param {string} url HTML5 URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var pathUrl = stripBaseUrl(appBaseNoFile, url);\n    if (!isString(pathUrl)) {\n      throw $locationMinErr('ipthprfx', 'Invalid url \"{0}\", missing path prefix \"{1}\".', url,\n          appBaseNoFile);\n    }\n\n    parseAppUrl(pathUrl, this, true);\n\n    if (!this.$$path) {\n      this.$$path = '/';\n    }\n\n    this.$$compose();\n  };\n\n  this.$$normalizeUrl = function(url) {\n    return appBaseNoFile + url.substr(1); // first char is always '/'\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n    var appUrl, prevAppUrl;\n    var rewrittenUrl;\n\n\n    if (isDefined(appUrl = stripBaseUrl(appBase, url))) {\n      prevAppUrl = appUrl;\n      if (basePrefix && isDefined(appUrl = stripBaseUrl(basePrefix, appUrl))) {\n        rewrittenUrl = appBaseNoFile + (stripBaseUrl('/', appUrl) || appUrl);\n      } else {\n        rewrittenUrl = appBase + prevAppUrl;\n      }\n    } else if (isDefined(appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBaseNoFile + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when developer doesn't opt into html5 mode.\n * It also serves as the base class for html5 mode fallback on legacy browsers.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) {\n\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given hashbang URL into properties\n   * @param {string} url Hashbang URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var withoutBaseUrl = stripBaseUrl(appBase, url) || stripBaseUrl(appBaseNoFile, url);\n    var withoutHashUrl;\n\n    if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') {\n\n      // The rest of the URL starts with a hash so we have\n      // got either a hashbang path or a plain hash fragment\n      withoutHashUrl = stripBaseUrl(hashPrefix, withoutBaseUrl);\n      if (isUndefined(withoutHashUrl)) {\n        // There was no hashbang prefix so we just have a hash fragment\n        withoutHashUrl = withoutBaseUrl;\n      }\n\n    } else {\n      // There was no hashbang path nor hash fragment:\n      // If we are in HTML5 mode we use what is left as the path;\n      // Otherwise we ignore what is left\n      if (this.$$html5) {\n        withoutHashUrl = withoutBaseUrl;\n      } else {\n        withoutHashUrl = '';\n        if (isUndefined(withoutBaseUrl)) {\n          appBase = url;\n          /** @type {?} */ (this).replace();\n        }\n      }\n    }\n\n    parseAppUrl(withoutHashUrl, this, false);\n\n    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);\n\n    this.$$compose();\n\n    /*\n     * In Windows, on an anchor node on documents loaded from\n     * the filesystem, the browser will return a pathname\n     * prefixed with the drive name ('/C:/path') when a\n     * pathname without a drive is set:\n     *  * a.setAttribute('href', '/foo')\n     *   * a.pathname === '/C:/foo' //true\n     *\n     * Inside of AngularJS, we're always using pathnames that\n     * do not include drive names for routing.\n     */\n    function removeWindowsDriveName(path, url, base) {\n      /*\n      Matches paths for file protocol on windows,\n      such as /C:/foo/bar, and captures only /foo/bar.\n      */\n      var windowsFilePathExp = /^\\/[A-Z]:(\\/.*)/;\n\n      var firstPathSegmentMatch;\n\n      //Get the relative path from the input URL.\n      if (startsWith(url, base)) {\n        url = url.replace(base, '');\n      }\n\n      // The input URL intentionally contains a first path segment that ends with a colon.\n      if (windowsFilePathExp.exec(url)) {\n        return path;\n      }\n\n      firstPathSegmentMatch = windowsFilePathExp.exec(path);\n      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;\n    }\n  };\n\n  this.$$normalizeUrl = function(url) {\n    return appBase + (url ? hashPrefix + url : '');\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (stripHash(appBase) === stripHash(url)) {\n      this.$$parse(url);\n      return true;\n    }\n    return false;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when html5 history api is enabled but the browser\n * does not support it.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) {\n  this.$$html5 = true;\n  LocationHashbangUrl.apply(this, arguments);\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n\n    var rewrittenUrl;\n    var appUrl;\n\n    if (appBase === stripHash(url)) {\n      rewrittenUrl = url;\n    } else if ((appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBase + hashPrefix + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n\n  this.$$normalizeUrl = function(url) {\n    // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#'\n    return appBase + hashPrefix + url;\n  };\n}\n\n\nvar locationPrototype = {\n\n  /**\n   * Ensure absolute URL is initialized.\n   * @private\n   */\n  $$absUrl:'',\n\n  /**\n   * Are we in html5 mode?\n   * @private\n   */\n  $$html5: false,\n\n  /**\n   * Has any change been replacing?\n   * @private\n   */\n  $$replace: false,\n\n  /**\n   * Compose url and update `url` and `absUrl` property\n   * @private\n   */\n  $$compose: function() {\n    this.$$url = normalizePath(this.$$path, this.$$search, this.$$hash);\n    this.$$absUrl = this.$$normalizeUrl(this.$$url);\n    this.$$urlUpdatedByLocation = true;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#absUrl\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return full URL representation with all segments encoded according to rules specified in\n   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var absUrl = $location.absUrl();\n   * // => \"http://example.com/#/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @return {string} full URL\n   */\n  absUrl: locationGetter('$$absUrl'),\n\n  /**\n   * @ngdoc method\n   * @name $location#url\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return URL (e.g. `/path?a=b#hash`) when called without any parameter.\n   *\n   * Change path, search and hash, when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var url = $location.url();\n   * // => \"/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @param {string=} url New URL without base prefix (e.g. `/path?a=b#hash`)\n   * @return {string} url\n   */\n  url: function(url) {\n    if (isUndefined(url)) {\n      return this.$$url;\n    }\n\n    var match = PATH_MATCH.exec(url);\n    if (match[1] || url === '') this.path(decodeURIComponent(match[1]));\n    if (match[2] || match[1] || url === '') this.search(match[3] || '');\n    this.hash(match[5] || '');\n\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#protocol\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return protocol of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var protocol = $location.protocol();\n   * // => \"http\"\n   * ```\n   *\n   * @return {string} protocol of current URL\n   */\n  protocol: locationGetter('$$protocol'),\n\n  /**\n   * @ngdoc method\n   * @name $location#host\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return host of current URL.\n   *\n   * Note: compared to the non-AngularJS version `location.host` which returns `hostname:port`, this returns the `hostname` portion only.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var host = $location.host();\n   * // => \"example.com\"\n   *\n   * // given URL http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo\n   * host = $location.host();\n   * // => \"example.com\"\n   * host = location.host;\n   * // => \"example.com:8080\"\n   * ```\n   *\n   * @return {string} host of current URL.\n   */\n  host: locationGetter('$$host'),\n\n  /**\n   * @ngdoc method\n   * @name $location#port\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return port of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var port = $location.port();\n   * // => 80\n   * ```\n   *\n   * @return {Number} port\n   */\n  port: locationGetter('$$port'),\n\n  /**\n   * @ngdoc method\n   * @name $location#path\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return path of current URL when called without any parameter.\n   *\n   * Change path when called with parameter and return `$location`.\n   *\n   * Note: Path should always begin with forward slash (/), this method will add the forward slash\n   * if it is missing.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var path = $location.path();\n   * // => \"/some/path\"\n   * ```\n   *\n   * @param {(string|number)=} path New path\n   * @return {(string|object)} path if called with no parameters, or `$location` if called with a parameter\n   */\n  path: locationGetterSetter('$$path', function(path) {\n    path = path !== null ? path.toString() : '';\n    return path.charAt(0) === '/' ? path : '/' + path;\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#search\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return search part (as object) of current URL when called without any parameter.\n   *\n   * Change search part when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var searchObject = $location.search();\n   * // => {foo: 'bar', baz: 'xoxo'}\n   *\n   * // set foo to 'yipee'\n   * $location.search('foo', 'yipee');\n   * // $location.search() => {foo: 'yipee', baz: 'xoxo'}\n   * ```\n   *\n   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or\n   * hash object.\n   *\n   * When called with a single argument the method acts as a setter, setting the `search` component\n   * of `$location` to the specified value.\n   *\n   * If the argument is a hash object containing an array of values, these values will be encoded\n   * as duplicate search parameters in the URL.\n   *\n   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`\n   * will override only a single search property.\n   *\n   * If `paramValue` is an array, it will override the property of the `search` component of\n   * `$location` specified via the first argument.\n   *\n   * If `paramValue` is `null`, the property specified via the first argument will be deleted.\n   *\n   * If `paramValue` is `true`, the property specified via the first argument will be added with no\n   * value nor trailing equal sign.\n   *\n   * @return {Object} If called with no arguments returns the parsed `search` object. If called with\n   * one or more arguments returns `$location` object itself.\n   */\n  search: function(search, paramValue) {\n    switch (arguments.length) {\n      case 0:\n        return this.$$search;\n      case 1:\n        if (isString(search) || isNumber(search)) {\n          search = search.toString();\n          this.$$search = parseKeyValue(search);\n        } else if (isObject(search)) {\n          search = copy(search, {});\n          // remove object undefined or null properties\n          forEach(search, function(value, key) {\n            if (value == null) delete search[key];\n          });\n\n          this.$$search = search;\n        } else {\n          throw $locationMinErr('isrcharg',\n              'The first argument of the `$location#search()` call must be a string or an object.');\n        }\n        break;\n      default:\n        if (isUndefined(paramValue) || paramValue === null) {\n          delete this.$$search[search];\n        } else {\n          this.$$search[search] = paramValue;\n        }\n    }\n\n    this.$$compose();\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#hash\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Returns the hash fragment when called without any parameters.\n   *\n   * Changes the hash fragment when called with a parameter and returns `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue\n   * var hash = $location.hash();\n   * // => \"hashValue\"\n   * ```\n   *\n   * @param {(string|number)=} hash New hash fragment\n   * @return {string} hash\n   */\n  hash: locationGetterSetter('$$hash', function(hash) {\n    return hash !== null ? hash.toString() : '';\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#replace\n   *\n   * @description\n   * If called, all changes to $location during the current `$digest` will replace the current history\n   * record, instead of adding a new one.\n   */\n  replace: function() {\n    this.$$replace = true;\n    return this;\n  }\n};\n\nforEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) {\n  Location.prototype = Object.create(locationPrototype);\n\n  /**\n   * @ngdoc method\n   * @name $location#state\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return the history state object when called without any parameter.\n   *\n   * Change the history state object when called with one parameter and return `$location`.\n   * The state object is later passed to `pushState` or `replaceState`.\n   *\n   * NOTE: This method is supported only in HTML5 mode and only in browsers supporting\n   * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support\n   * older browsers (like IE9 or Android < 4.0), don't use this method.\n   *\n   * @param {object=} state State object for pushState or replaceState\n   * @return {object} state\n   */\n  Location.prototype.state = function(state) {\n    if (!arguments.length) {\n      return this.$$state;\n    }\n\n    if (Location !== LocationHtml5Url || !this.$$html5) {\n      throw $locationMinErr('nostate', 'History API state support is available only ' +\n        'in HTML5 mode and only in browsers supporting HTML5 History API');\n    }\n    // The user might modify `stateObject` after invoking `$location.state(stateObject)`\n    // but we're changing the $$state reference to $browser.state() during the $digest\n    // so the modification window is narrow.\n    this.$$state = isUndefined(state) ? null : state;\n    this.$$urlUpdatedByLocation = true;\n\n    return this;\n  };\n});\n\n\nfunction locationGetter(property) {\n  return /** @this */ function() {\n    return this[property];\n  };\n}\n\n\nfunction locationGetterSetter(property, preprocess) {\n  return /** @this */ function(value) {\n    if (isUndefined(value)) {\n      return this[property];\n    }\n\n    this[property] = preprocess(value);\n    this.$$compose();\n\n    return this;\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $location\n *\n * @requires $rootElement\n *\n * @description\n * The $location service parses the URL in the browser address bar (based on the\n * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL\n * available to your application. Changes to the URL in the address bar are reflected into\n * $location service and changes to $location are reflected into the browser address bar.\n *\n * **The $location service:**\n *\n * - Exposes the current URL in the browser address bar, so you can\n *   - Watch and observe the URL.\n *   - Change the URL.\n * - Synchronizes the URL with the browser when the user\n *   - Changes the address bar.\n *   - Clicks the back or forward button (or clicks a History link).\n *   - Clicks on a link.\n * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).\n *\n * For more information see {@link guide/$location Developer Guide: Using $location}\n */\n\n/**\n * @ngdoc provider\n * @name $locationProvider\n * @this\n *\n * @description\n * Use the `$locationProvider` to configure how the application deep linking paths are stored.\n */\nfunction $LocationProvider() {\n  var hashPrefix = '!',\n      html5Mode = {\n        enabled: false,\n        requireBase: true,\n        rewriteLinks: true\n      };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#hashPrefix\n   * @description\n   * The default value for the prefix is `'!'`.\n   * @param {string=} prefix Prefix for hash part (containing path and search)\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.hashPrefix = function(prefix) {\n    if (isDefined(prefix)) {\n      hashPrefix = prefix;\n      return this;\n    } else {\n      return hashPrefix;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#html5Mode\n   * @description\n   * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value.\n   *   If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported\n   *   properties:\n   *   - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to\n   *     change urls where supported. Will fall back to hash-prefixed paths in browsers that do not\n   *     support `pushState`.\n   *   - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies\n   *     whether or not a <base> tag is required to be present. If `enabled` and `requireBase` are\n   *     true, and a base tag is not present, an error will be thrown when `$location` is injected.\n   *     See the {@link guide/$location $location guide for more information}\n   *   - **rewriteLinks** - `{boolean|string}` - (default: `true`) When html5Mode is enabled,\n   *     enables/disables URL rewriting for relative links. If set to a string, URL rewriting will\n   *     only happen on links with an attribute that matches the given string. For example, if set\n   *     to `'internal-link'`, then the URL will only be rewritten for `<a internal-link>` links.\n   *     Note that [attribute name normalization](guide/directive#normalization) does not apply\n   *     here, so `'internalLink'` will **not** match `'internal-link'`.\n   *\n   * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter\n   */\n  this.html5Mode = function(mode) {\n    if (isBoolean(mode)) {\n      html5Mode.enabled = mode;\n      return this;\n    } else if (isObject(mode)) {\n\n      if (isBoolean(mode.enabled)) {\n        html5Mode.enabled = mode.enabled;\n      }\n\n      if (isBoolean(mode.requireBase)) {\n        html5Mode.requireBase = mode.requireBase;\n      }\n\n      if (isBoolean(mode.rewriteLinks) || isString(mode.rewriteLinks)) {\n        html5Mode.rewriteLinks = mode.rewriteLinks;\n      }\n\n      return this;\n    } else {\n      return html5Mode;\n    }\n  };\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeStart\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted before a URL will change.\n   *\n   * This change can be prevented by calling\n   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more\n   * details about event object. Upon successful change\n   * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeSuccess\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted after a URL was changed.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window',\n      function($rootScope, $browser, $sniffer, $rootElement, $window) {\n    var $location,\n        LocationMode,\n        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''\n        initialUrl = $browser.url(),\n        appBase;\n\n    if (html5Mode.enabled) {\n      if (!baseHref && html5Mode.requireBase) {\n        throw $locationMinErr('nobase',\n          '$location in HTML5 mode requires a <base> tag to be present!');\n      }\n      appBase = serverBase(initialUrl) + (baseHref || '/');\n      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;\n    } else {\n      appBase = stripHash(initialUrl);\n      LocationMode = LocationHashbangUrl;\n    }\n    var appBaseNoFile = stripFile(appBase);\n\n    $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix);\n    $location.$$parseLinkUrl(initialUrl, initialUrl);\n\n    $location.$$state = $browser.state();\n\n    var IGNORE_URI_REGEXP = /^\\s*(javascript|mailto):/i;\n\n    // Determine if two URLs are equal despite potentially having different encoding/normalizing\n    //  such as $location.absUrl() vs $browser.url()\n    // See https://github.com/angular/angular.js/issues/16592\n    function urlsEqual(a, b) {\n      return a === b || urlResolve(a).href === urlResolve(b).href;\n    }\n\n    function setBrowserUrlWithFallback(url, replace, state) {\n      var oldUrl = $location.url();\n      var oldState = $location.$$state;\n      try {\n        $browser.url(url, replace, state);\n\n        // Make sure $location.state() returns referentially identical (not just deeply equal)\n        // state object; this makes possible quick checking if the state changed in the digest\n        // loop. Checking deep equality would be too expensive.\n        $location.$$state = $browser.state();\n      } catch (e) {\n        // Restore old values if pushState fails\n        $location.url(oldUrl);\n        $location.$$state = oldState;\n\n        throw e;\n      }\n    }\n\n    $rootElement.on('click', function(event) {\n      var rewriteLinks = html5Mode.rewriteLinks;\n      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)\n      // currently we open nice url link and redirect then\n\n      if (!rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which === 2 || event.button === 2) return;\n\n      var elm = jqLite(event.target);\n\n      // traverse the DOM up to find first A tag\n      while (nodeName_(elm[0]) !== 'a') {\n        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)\n        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;\n      }\n\n      if (isString(rewriteLinks) && isUndefined(elm.attr(rewriteLinks))) return;\n\n      var absHref = elm.prop('href');\n      // get the actual href attribute - see\n      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx\n      var relHref = elm.attr('href') || elm.attr('xlink:href');\n\n      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {\n        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during\n        // an animation.\n        absHref = urlResolve(absHref.animVal).href;\n      }\n\n      // Ignore when url is started with javascript: or mailto:\n      if (IGNORE_URI_REGEXP.test(absHref)) return;\n\n      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {\n        if ($location.$$parseLinkUrl(absHref, relHref)) {\n          // We do a preventDefault for all urls that are part of the AngularJS application,\n          // in html5mode and also without, so that we are able to abort navigation without\n          // getting double entries in the location history.\n          event.preventDefault();\n          // update location manually\n          if ($location.absUrl() !== $browser.url()) {\n            $rootScope.$apply();\n          }\n        }\n      }\n    });\n\n\n    // rewrite hashbang url <> html5 url\n    if ($location.absUrl() !== initialUrl) {\n      $browser.url($location.absUrl(), true);\n    }\n\n    var initializing = true;\n\n    // update $location when $browser url changes\n    $browser.onUrlChange(function(newUrl, newState) {\n\n      if (!startsWith(newUrl, appBaseNoFile)) {\n        // If we are navigating outside of the app then force a reload\n        $window.location.href = newUrl;\n        return;\n      }\n\n      $rootScope.$evalAsync(function() {\n        var oldUrl = $location.absUrl();\n        var oldState = $location.$$state;\n        var defaultPrevented;\n        $location.$$parse(newUrl);\n        $location.$$state = newState;\n\n        defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n            newState, oldState).defaultPrevented;\n\n        // if the location was changed by a `$locationChangeStart` handler then stop\n        // processing this location change\n        if ($location.absUrl() !== newUrl) return;\n\n        if (defaultPrevented) {\n          $location.$$parse(oldUrl);\n          $location.$$state = oldState;\n          setBrowserUrlWithFallback(oldUrl, false, oldState);\n        } else {\n          initializing = false;\n          afterLocationChange(oldUrl, oldState);\n        }\n      });\n      if (!$rootScope.$$phase) $rootScope.$digest();\n    });\n\n    // update browser\n    $rootScope.$watch(function $locationWatch() {\n      if (initializing || $location.$$urlUpdatedByLocation) {\n        $location.$$urlUpdatedByLocation = false;\n\n        var oldUrl = $browser.url();\n        var newUrl = $location.absUrl();\n        var oldState = $browser.state();\n        var currentReplace = $location.$$replace;\n        var urlOrStateChanged = !urlsEqual(oldUrl, newUrl) ||\n          ($location.$$html5 && $sniffer.history && oldState !== $location.$$state);\n\n        if (initializing || urlOrStateChanged) {\n          initializing = false;\n\n          $rootScope.$evalAsync(function() {\n            var newUrl = $location.absUrl();\n            var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n                $location.$$state, oldState).defaultPrevented;\n\n            // if the location was changed by a `$locationChangeStart` handler then stop\n            // processing this location change\n            if ($location.absUrl() !== newUrl) return;\n\n            if (defaultPrevented) {\n              $location.$$parse(oldUrl);\n              $location.$$state = oldState;\n            } else {\n              if (urlOrStateChanged) {\n                setBrowserUrlWithFallback(newUrl, currentReplace,\n                                          oldState === $location.$$state ? null : $location.$$state);\n              }\n              afterLocationChange(oldUrl, oldState);\n            }\n          });\n        }\n      }\n\n      $location.$$replace = false;\n\n      // we don't need to return anything because $evalAsync will make the digest loop dirty when\n      // there is a change\n    });\n\n    return $location;\n\n    function afterLocationChange(oldUrl, oldState) {\n      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl,\n        $location.$$state, oldState);\n    }\n}];\n}\n\n/**\n * @ngdoc service\n * @name $log\n * @requires $window\n *\n * @description\n * Simple service for logging. Default implementation safely writes the message\n * into the browser's console (if present).\n *\n * The main purpose of this service is to simplify debugging and troubleshooting.\n *\n * To reveal the location of the calls to `$log` in the JavaScript console,\n * you can \"blackbox\" the AngularJS source in your browser:\n *\n * [Mozilla description of blackboxing](https://developer.mozilla.org/en-US/docs/Tools/Debugger/How_to/Black_box_a_source).\n * [Chrome description of blackboxing](https://developer.chrome.com/devtools/docs/blackboxing).\n *\n * Note: Not all browsers support blackboxing.\n *\n * The default is to log `debug` messages. You can use\n * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.\n *\n * @example\n   <example module=\"logExample\" name=\"log-service\">\n     <file name=\"script.js\">\n       angular.module('logExample', [])\n         .controller('LogController', ['$scope', '$log', function($scope, $log) {\n           $scope.$log = $log;\n           $scope.message = 'Hello World!';\n         }]);\n     </file>\n     <file name=\"index.html\">\n       <div ng-controller=\"LogController\">\n         <p>Reload this page with open console, enter text and hit the log button...</p>\n         <label>Message:\n         <input type=\"text\" ng-model=\"message\" /></label>\n         <button ng-click=\"$log.log(message)\">log</button>\n         <button ng-click=\"$log.warn(message)\">warn</button>\n         <button ng-click=\"$log.info(message)\">info</button>\n         <button ng-click=\"$log.error(message)\">error</button>\n         <button ng-click=\"$log.debug(message)\">debug</button>\n       </div>\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc provider\n * @name $logProvider\n * @this\n *\n * @description\n * Use the `$logProvider` to configure how the application logs messages\n */\nfunction $LogProvider() {\n  var debug = true,\n      self = this;\n\n  /**\n   * @ngdoc method\n   * @name $logProvider#debugEnabled\n   * @description\n   * @param {boolean=} flag enable or disable debug level messages\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.debugEnabled = function(flag) {\n    if (isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = ['$window', function($window) {\n    // Support: IE 9-11, Edge 12-14+\n    // IE/Edge display errors in such a way that it requires the user to click in 4 places\n    // to see the stack trace. There is no way to feature-detect it so there's a chance\n    // of the user agent sniffing to go wrong but since it's only about logging, this shouldn't\n    // break apps. Other browsers display errors in a sensible way and some of them map stack\n    // traces along source maps if available so it makes sense to let browsers display it\n    // as they want.\n    var formatStackTrace = msie || /\\bEdge\\//.test($window.navigator && $window.navigator.userAgent);\n\n    return {\n      /**\n       * @ngdoc method\n       * @name $log#log\n       *\n       * @description\n       * Write a log message\n       */\n      log: consoleLog('log'),\n\n      /**\n       * @ngdoc method\n       * @name $log#info\n       *\n       * @description\n       * Write an information message\n       */\n      info: consoleLog('info'),\n\n      /**\n       * @ngdoc method\n       * @name $log#warn\n       *\n       * @description\n       * Write a warning message\n       */\n      warn: consoleLog('warn'),\n\n      /**\n       * @ngdoc method\n       * @name $log#error\n       *\n       * @description\n       * Write an error message\n       */\n      error: consoleLog('error'),\n\n      /**\n       * @ngdoc method\n       * @name $log#debug\n       *\n       * @description\n       * Write a debug message\n       */\n      debug: (function() {\n        var fn = consoleLog('debug');\n\n        return function() {\n          if (debug) {\n            fn.apply(self, arguments);\n          }\n        };\n      })()\n    };\n\n    function formatError(arg) {\n      if (isError(arg)) {\n        if (arg.stack && formatStackTrace) {\n          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)\n              ? 'Error: ' + arg.message + '\\n' + arg.stack\n              : arg.stack;\n        } else if (arg.sourceURL) {\n          arg = arg.message + '\\n' + arg.sourceURL + ':' + arg.line;\n        }\n      }\n      return arg;\n    }\n\n    function consoleLog(type) {\n      var console = $window.console || {},\n          logFn = console[type] || console.log || noop;\n\n      return function() {\n        var args = [];\n        forEach(arguments, function(arg) {\n          args.push(formatError(arg));\n        });\n        // Support: IE 9 only\n        // console methods don't inherit from Function.prototype in IE 9 so we can't\n        // call `logFn.apply(console, args)` directly.\n        return Function.prototype.apply.call(logFn, console, args);\n      };\n    }\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $parseMinErr = minErr('$parse');\n\nvar objectValueOf = {}.constructor.prototype.valueOf;\n\n// Sandboxing AngularJS Expressions\n// ------------------------------\n// AngularJS expressions are no longer sandboxed. So it is now even easier to access arbitrary JS code by\n// various means such as obtaining a reference to native JS functions like the Function constructor.\n//\n// As an example, consider the following AngularJS expression:\n//\n//   {}.toString.constructor('alert(\"evil JS code\")')\n//\n// It is important to realize that if you create an expression from a string that contains user provided\n// content then it is possible that your application contains a security vulnerability to an XSS style attack.\n//\n// See https://docs.angularjs.org/guide/security\n\n\nfunction getStringValue(name) {\n  // Property names must be strings. This means that non-string objects cannot be used\n  // as keys in an object. Any non-string object, including a number, is typecasted\n  // into a string via the toString method.\n  // -- MDN, https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Property_accessors#Property_names\n  //\n  // So, to ensure that we are checking the same `name` that JavaScript would use, we cast it\n  // to a string. It's not always possible. If `name` is an object and its `toString` method is\n  // 'broken' (doesn't return a string, isn't a function, etc.), an error will be thrown:\n  //\n  // TypeError: Cannot convert object to primitive value\n  //\n  // For performance reasons, we don't catch this error here and allow it to propagate up the call\n  // stack. Note that you'll get the same error in JavaScript if you try to access a property using\n  // such a 'broken' object as a key.\n  return name + '';\n}\n\n\nvar OPERATORS = createMap();\nforEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; });\nvar ESCAPE = {'n':'\\n', 'f':'\\f', 'r':'\\r', 't':'\\t', 'v':'\\v', '\\'':'\\'', '\"':'\"'};\n\n\n/////////////////////////////////////////\n\n\n/**\n * @constructor\n */\nvar Lexer = function Lexer(options) {\n  this.options = options;\n};\n\nLexer.prototype = {\n  constructor: Lexer,\n\n  lex: function(text) {\n    this.text = text;\n    this.index = 0;\n    this.tokens = [];\n\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (ch === '\"' || ch === '\\'') {\n        this.readString(ch);\n      } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) {\n        this.readNumber();\n      } else if (this.isIdentifierStart(this.peekMultichar())) {\n        this.readIdent();\n      } else if (this.is(ch, '(){}[].,;:?')) {\n        this.tokens.push({index: this.index, text: ch});\n        this.index++;\n      } else if (this.isWhitespace(ch)) {\n        this.index++;\n      } else {\n        var ch2 = ch + this.peek();\n        var ch3 = ch2 + this.peek(2);\n        var op1 = OPERATORS[ch];\n        var op2 = OPERATORS[ch2];\n        var op3 = OPERATORS[ch3];\n        if (op1 || op2 || op3) {\n          var token = op3 ? ch3 : (op2 ? ch2 : ch);\n          this.tokens.push({index: this.index, text: token, operator: true});\n          this.index += token.length;\n        } else {\n          this.throwError('Unexpected next character ', this.index, this.index + 1);\n        }\n      }\n    }\n    return this.tokens;\n  },\n\n  is: function(ch, chars) {\n    return chars.indexOf(ch) !== -1;\n  },\n\n  peek: function(i) {\n    var num = i || 1;\n    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;\n  },\n\n  isNumber: function(ch) {\n    return ('0' <= ch && ch <= '9') && typeof ch === 'string';\n  },\n\n  isWhitespace: function(ch) {\n    // IE treats non-breaking space as \\u00A0\n    return (ch === ' ' || ch === '\\r' || ch === '\\t' ||\n            ch === '\\n' || ch === '\\v' || ch === '\\u00A0');\n  },\n\n  isIdentifierStart: function(ch) {\n    return this.options.isIdentifierStart ?\n        this.options.isIdentifierStart(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierStart(ch);\n  },\n\n  isValidIdentifierStart: function(ch) {\n    return ('a' <= ch && ch <= 'z' ||\n            'A' <= ch && ch <= 'Z' ||\n            '_' === ch || ch === '$');\n  },\n\n  isIdentifierContinue: function(ch) {\n    return this.options.isIdentifierContinue ?\n        this.options.isIdentifierContinue(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierContinue(ch);\n  },\n\n  isValidIdentifierContinue: function(ch, cp) {\n    return this.isValidIdentifierStart(ch, cp) || this.isNumber(ch);\n  },\n\n  codePointAt: function(ch) {\n    if (ch.length === 1) return ch.charCodeAt(0);\n    // eslint-disable-next-line no-bitwise\n    return (ch.charCodeAt(0) << 10) + ch.charCodeAt(1) - 0x35FDC00;\n  },\n\n  peekMultichar: function() {\n    var ch = this.text.charAt(this.index);\n    var peek = this.peek();\n    if (!peek) {\n      return ch;\n    }\n    var cp1 = ch.charCodeAt(0);\n    var cp2 = peek.charCodeAt(0);\n    if (cp1 >= 0xD800 && cp1 <= 0xDBFF && cp2 >= 0xDC00 && cp2 <= 0xDFFF) {\n      return ch + peek;\n    }\n    return ch;\n  },\n\n  isExpOperator: function(ch) {\n    return (ch === '-' || ch === '+' || this.isNumber(ch));\n  },\n\n  throwError: function(error, start, end) {\n    end = end || this.index;\n    var colStr = (isDefined(start)\n            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'\n            : ' ' + end);\n    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',\n        error, colStr, this.text);\n  },\n\n  readNumber: function() {\n    var number = '';\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = lowercase(this.text.charAt(this.index));\n      if (ch === '.' || this.isNumber(ch)) {\n        number += ch;\n      } else {\n        var peekCh = this.peek();\n        if (ch === 'e' && this.isExpOperator(peekCh)) {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            peekCh && this.isNumber(peekCh) &&\n            number.charAt(number.length - 1) === 'e') {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            (!peekCh || !this.isNumber(peekCh)) &&\n            number.charAt(number.length - 1) === 'e') {\n          this.throwError('Invalid exponent');\n        } else {\n          break;\n        }\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: number,\n      constant: true,\n      value: Number(number)\n    });\n  },\n\n  readIdent: function() {\n    var start = this.index;\n    this.index += this.peekMultichar().length;\n    while (this.index < this.text.length) {\n      var ch = this.peekMultichar();\n      if (!this.isIdentifierContinue(ch)) {\n        break;\n      }\n      this.index += ch.length;\n    }\n    this.tokens.push({\n      index: start,\n      text: this.text.slice(start, this.index),\n      identifier: true\n    });\n  },\n\n  readString: function(quote) {\n    var start = this.index;\n    this.index++;\n    var string = '';\n    var rawString = quote;\n    var escape = false;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      rawString += ch;\n      if (escape) {\n        if (ch === 'u') {\n          var hex = this.text.substring(this.index + 1, this.index + 5);\n          if (!hex.match(/[\\da-f]{4}/i)) {\n            this.throwError('Invalid unicode escape [\\\\u' + hex + ']');\n          }\n          this.index += 4;\n          string += String.fromCharCode(parseInt(hex, 16));\n        } else {\n          var rep = ESCAPE[ch];\n          string = string + (rep || ch);\n        }\n        escape = false;\n      } else if (ch === '\\\\') {\n        escape = true;\n      } else if (ch === quote) {\n        this.index++;\n        this.tokens.push({\n          index: start,\n          text: rawString,\n          constant: true,\n          value: string\n        });\n        return;\n      } else {\n        string += ch;\n      }\n      this.index++;\n    }\n    this.throwError('Unterminated quote', start);\n  }\n};\n\nvar AST = function AST(lexer, options) {\n  this.lexer = lexer;\n  this.options = options;\n};\n\nAST.Program = 'Program';\nAST.ExpressionStatement = 'ExpressionStatement';\nAST.AssignmentExpression = 'AssignmentExpression';\nAST.ConditionalExpression = 'ConditionalExpression';\nAST.LogicalExpression = 'LogicalExpression';\nAST.BinaryExpression = 'BinaryExpression';\nAST.UnaryExpression = 'UnaryExpression';\nAST.CallExpression = 'CallExpression';\nAST.MemberExpression = 'MemberExpression';\nAST.Identifier = 'Identifier';\nAST.Literal = 'Literal';\nAST.ArrayExpression = 'ArrayExpression';\nAST.Property = 'Property';\nAST.ObjectExpression = 'ObjectExpression';\nAST.ThisExpression = 'ThisExpression';\nAST.LocalsExpression = 'LocalsExpression';\n\n// Internal use only\nAST.NGValueParameter = 'NGValueParameter';\n\nAST.prototype = {\n  ast: function(text) {\n    this.text = text;\n    this.tokens = this.lexer.lex(text);\n\n    var value = this.program();\n\n    if (this.tokens.length !== 0) {\n      this.throwError('is an unexpected token', this.tokens[0]);\n    }\n\n    return value;\n  },\n\n  program: function() {\n    var body = [];\n    while (true) {\n      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))\n        body.push(this.expressionStatement());\n      if (!this.expect(';')) {\n        return { type: AST.Program, body: body};\n      }\n    }\n  },\n\n  expressionStatement: function() {\n    return { type: AST.ExpressionStatement, expression: this.filterChain() };\n  },\n\n  filterChain: function() {\n    var left = this.expression();\n    while (this.expect('|')) {\n      left = this.filter(left);\n    }\n    return left;\n  },\n\n  expression: function() {\n    return this.assignment();\n  },\n\n  assignment: function() {\n    var result = this.ternary();\n    if (this.expect('=')) {\n      if (!isAssignable(result)) {\n        throw $parseMinErr('lval', 'Trying to assign a value to a non l-value');\n      }\n\n      result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='};\n    }\n    return result;\n  },\n\n  ternary: function() {\n    var test = this.logicalOR();\n    var alternate;\n    var consequent;\n    if (this.expect('?')) {\n      alternate = this.expression();\n      if (this.consume(':')) {\n        consequent = this.expression();\n        return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent};\n      }\n    }\n    return test;\n  },\n\n  logicalOR: function() {\n    var left = this.logicalAND();\n    while (this.expect('||')) {\n      left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() };\n    }\n    return left;\n  },\n\n  logicalAND: function() {\n    var left = this.equality();\n    while (this.expect('&&')) {\n      left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()};\n    }\n    return left;\n  },\n\n  equality: function() {\n    var left = this.relational();\n    var token;\n    while ((token = this.expect('==','!=','===','!=='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() };\n    }\n    return left;\n  },\n\n  relational: function() {\n    var left = this.additive();\n    var token;\n    while ((token = this.expect('<', '>', '<=', '>='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() };\n    }\n    return left;\n  },\n\n  additive: function() {\n    var left = this.multiplicative();\n    var token;\n    while ((token = this.expect('+','-'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() };\n    }\n    return left;\n  },\n\n  multiplicative: function() {\n    var left = this.unary();\n    var token;\n    while ((token = this.expect('*','/','%'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() };\n    }\n    return left;\n  },\n\n  unary: function() {\n    var token;\n    if ((token = this.expect('+', '-', '!'))) {\n      return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() };\n    } else {\n      return this.primary();\n    }\n  },\n\n  primary: function() {\n    var primary;\n    if (this.expect('(')) {\n      primary = this.filterChain();\n      this.consume(')');\n    } else if (this.expect('[')) {\n      primary = this.arrayDeclaration();\n    } else if (this.expect('{')) {\n      primary = this.object();\n    } else if (this.selfReferential.hasOwnProperty(this.peek().text)) {\n      primary = copy(this.selfReferential[this.consume().text]);\n    } else if (this.options.literals.hasOwnProperty(this.peek().text)) {\n      primary = { type: AST.Literal, value: this.options.literals[this.consume().text]};\n    } else if (this.peek().identifier) {\n      primary = this.identifier();\n    } else if (this.peek().constant) {\n      primary = this.constant();\n    } else {\n      this.throwError('not a primary expression', this.peek());\n    }\n\n    var next;\n    while ((next = this.expect('(', '[', '.'))) {\n      if (next.text === '(') {\n        primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() };\n        this.consume(')');\n      } else if (next.text === '[') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true };\n        this.consume(']');\n      } else if (next.text === '.') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false };\n      } else {\n        this.throwError('IMPOSSIBLE');\n      }\n    }\n    return primary;\n  },\n\n  filter: function(baseExpression) {\n    var args = [baseExpression];\n    var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true};\n\n    while (this.expect(':')) {\n      args.push(this.expression());\n    }\n\n    return result;\n  },\n\n  parseArguments: function() {\n    var args = [];\n    if (this.peekToken().text !== ')') {\n      do {\n        args.push(this.filterChain());\n      } while (this.expect(','));\n    }\n    return args;\n  },\n\n  identifier: function() {\n    var token = this.consume();\n    if (!token.identifier) {\n      this.throwError('is not a valid identifier', token);\n    }\n    return { type: AST.Identifier, name: token.text };\n  },\n\n  constant: function() {\n    // TODO check that it is a constant\n    return { type: AST.Literal, value: this.consume().value };\n  },\n\n  arrayDeclaration: function() {\n    var elements = [];\n    if (this.peekToken().text !== ']') {\n      do {\n        if (this.peek(']')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        elements.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(']');\n\n    return { type: AST.ArrayExpression, elements: elements };\n  },\n\n  object: function() {\n    var properties = [], property;\n    if (this.peekToken().text !== '}') {\n      do {\n        if (this.peek('}')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        property = {type: AST.Property, kind: 'init'};\n        if (this.peek().constant) {\n          property.key = this.constant();\n          property.computed = false;\n          this.consume(':');\n          property.value = this.expression();\n        } else if (this.peek().identifier) {\n          property.key = this.identifier();\n          property.computed = false;\n          if (this.peek(':')) {\n            this.consume(':');\n            property.value = this.expression();\n          } else {\n            property.value = property.key;\n          }\n        } else if (this.peek('[')) {\n          this.consume('[');\n          property.key = this.expression();\n          this.consume(']');\n          property.computed = true;\n          this.consume(':');\n          property.value = this.expression();\n        } else {\n          this.throwError('invalid key', this.peek());\n        }\n        properties.push(property);\n      } while (this.expect(','));\n    }\n    this.consume('}');\n\n    return {type: AST.ObjectExpression, properties: properties };\n  },\n\n  throwError: function(msg, token) {\n    throw $parseMinErr('syntax',\n        'Syntax Error: Token \\'{0}\\' {1} at column {2} of the expression [{3}] starting at [{4}].',\n          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));\n  },\n\n  consume: function(e1) {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n\n    var token = this.expect(e1);\n    if (!token) {\n      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());\n    }\n    return token;\n  },\n\n  peekToken: function() {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n    return this.tokens[0];\n  },\n\n  peek: function(e1, e2, e3, e4) {\n    return this.peekAhead(0, e1, e2, e3, e4);\n  },\n\n  peekAhead: function(i, e1, e2, e3, e4) {\n    if (this.tokens.length > i) {\n      var token = this.tokens[i];\n      var t = token.text;\n      if (t === e1 || t === e2 || t === e3 || t === e4 ||\n          (!e1 && !e2 && !e3 && !e4)) {\n        return token;\n      }\n    }\n    return false;\n  },\n\n  expect: function(e1, e2, e3, e4) {\n    var token = this.peek(e1, e2, e3, e4);\n    if (token) {\n      this.tokens.shift();\n      return token;\n    }\n    return false;\n  },\n\n  selfReferential: {\n    'this': {type: AST.ThisExpression },\n    '$locals': {type: AST.LocalsExpression }\n  }\n};\n\nfunction ifDefined(v, d) {\n  return typeof v !== 'undefined' ? v : d;\n}\n\nfunction plusFn(l, r) {\n  if (typeof l === 'undefined') return r;\n  if (typeof r === 'undefined') return l;\n  return l + r;\n}\n\nfunction isStateless($filter, filterName) {\n  var fn = $filter(filterName);\n  return !fn.$stateful;\n}\n\nvar PURITY_ABSOLUTE = 1;\nvar PURITY_RELATIVE = 2;\n\n// Detect nodes which could depend on non-shallow state of objects\nfunction isPure(node, parentIsPure) {\n  switch (node.type) {\n    // Computed members might invoke a stateful toString()\n    case AST.MemberExpression:\n      if (node.computed) {\n        return false;\n      }\n      break;\n\n    // Unary always convert to primative\n    case AST.UnaryExpression:\n      return PURITY_ABSOLUTE;\n\n    // The binary + operator can invoke a stateful toString().\n    case AST.BinaryExpression:\n      return node.operator !== '+' ? PURITY_ABSOLUTE : false;\n\n    // Functions / filters probably read state from within objects\n    case AST.CallExpression:\n      return false;\n  }\n\n  return (undefined === parentIsPure) ? PURITY_RELATIVE : parentIsPure;\n}\n\nfunction findConstantAndWatchExpressions(ast, $filter, parentIsPure) {\n  var allConstants;\n  var argsToWatch;\n  var isStatelessFilter;\n\n  var astIsPure = ast.isPure = isPure(ast, parentIsPure);\n\n  switch (ast.type) {\n  case AST.Program:\n    allConstants = true;\n    forEach(ast.body, function(expr) {\n      findConstantAndWatchExpressions(expr.expression, $filter, astIsPure);\n      allConstants = allConstants && expr.expression.constant;\n    });\n    ast.constant = allConstants;\n    break;\n  case AST.Literal:\n    ast.constant = true;\n    ast.toWatch = [];\n    break;\n  case AST.UnaryExpression:\n    findConstantAndWatchExpressions(ast.argument, $filter, astIsPure);\n    ast.constant = ast.argument.constant;\n    ast.toWatch = ast.argument.toWatch;\n    break;\n  case AST.BinaryExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch);\n    break;\n  case AST.LogicalExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.ConditionalExpression:\n    findConstantAndWatchExpressions(ast.test, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.alternate, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.consequent, $filter, astIsPure);\n    ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.Identifier:\n    ast.constant = false;\n    ast.toWatch = [ast];\n    break;\n  case AST.MemberExpression:\n    findConstantAndWatchExpressions(ast.object, $filter, astIsPure);\n    if (ast.computed) {\n      findConstantAndWatchExpressions(ast.property, $filter, astIsPure);\n    }\n    ast.constant = ast.object.constant && (!ast.computed || ast.property.constant);\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.CallExpression:\n    isStatelessFilter = ast.filter ? isStateless($filter, ast.callee.name) : false;\n    allConstants = isStatelessFilter;\n    argsToWatch = [];\n    forEach(ast.arguments, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter, astIsPure);\n      allConstants = allConstants && expr.constant;\n      argsToWatch.push.apply(argsToWatch, expr.toWatch);\n    });\n    ast.constant = allConstants;\n    ast.toWatch = isStatelessFilter ? argsToWatch : [ast];\n    break;\n  case AST.AssignmentExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = [ast];\n    break;\n  case AST.ArrayExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.elements, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter, astIsPure);\n      allConstants = allConstants && expr.constant;\n      argsToWatch.push.apply(argsToWatch, expr.toWatch);\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ObjectExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.properties, function(property) {\n      findConstantAndWatchExpressions(property.value, $filter, astIsPure);\n      allConstants = allConstants && property.value.constant;\n      argsToWatch.push.apply(argsToWatch, property.value.toWatch);\n      if (property.computed) {\n        //`{[key]: value}` implicitly does `key.toString()` which may be non-pure\n        findConstantAndWatchExpressions(property.key, $filter, /*parentIsPure=*/false);\n        allConstants = allConstants && property.key.constant;\n        argsToWatch.push.apply(argsToWatch, property.key.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ThisExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  case AST.LocalsExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  }\n}\n\nfunction getInputs(body) {\n  if (body.length !== 1) return;\n  var lastExpression = body[0].expression;\n  var candidate = lastExpression.toWatch;\n  if (candidate.length !== 1) return candidate;\n  return candidate[0] !== lastExpression ? candidate : undefined;\n}\n\nfunction isAssignable(ast) {\n  return ast.type === AST.Identifier || ast.type === AST.MemberExpression;\n}\n\nfunction assignableAST(ast) {\n  if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) {\n    return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='};\n  }\n}\n\nfunction isLiteral(ast) {\n  return ast.body.length === 0 ||\n      ast.body.length === 1 && (\n      ast.body[0].expression.type === AST.Literal ||\n      ast.body[0].expression.type === AST.ArrayExpression ||\n      ast.body[0].expression.type === AST.ObjectExpression);\n}\n\nfunction isConstant(ast) {\n  return ast.constant;\n}\n\nfunction ASTCompiler($filter) {\n  this.$filter = $filter;\n}\n\nASTCompiler.prototype = {\n  compile: function(ast) {\n    var self = this;\n    this.state = {\n      nextId: 0,\n      filters: {},\n      fn: {vars: [], body: [], own: {}},\n      assign: {vars: [], body: [], own: {}},\n      inputs: []\n    };\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var extra = '';\n    var assignable;\n    this.stage = 'assign';\n    if ((assignable = assignableAST(ast))) {\n      this.state.computing = 'assign';\n      var result = this.nextId();\n      this.recurse(assignable, result);\n      this.return_(result);\n      extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l');\n    }\n    var toWatch = getInputs(ast.body);\n    self.stage = 'inputs';\n    forEach(toWatch, function(watch, key) {\n      var fnKey = 'fn' + key;\n      self.state[fnKey] = {vars: [], body: [], own: {}};\n      self.state.computing = fnKey;\n      var intoId = self.nextId();\n      self.recurse(watch, intoId);\n      self.return_(intoId);\n      self.state.inputs.push({name: fnKey, isPure: watch.isPure});\n      watch.watchId = key;\n    });\n    this.state.computing = 'fn';\n    this.stage = 'main';\n    this.recurse(ast);\n    var fnString =\n      // The build and minification steps remove the string \"use strict\" from the code, but this is done using a regex.\n      // This is a workaround for this until we do a better job at only removing the prefix only when we should.\n      '\"' + this.USE + ' ' + this.STRICT + '\";\\n' +\n      this.filterPrefix() +\n      'var fn=' + this.generateFunction('fn', 's,l,a,i') +\n      extra +\n      this.watchFns() +\n      'return fn;';\n\n    // eslint-disable-next-line no-new-func\n    var fn = (new Function('$filter',\n        'getStringValue',\n        'ifDefined',\n        'plus',\n        fnString))(\n          this.$filter,\n          getStringValue,\n          ifDefined,\n          plusFn);\n    this.state = this.stage = undefined;\n    return fn;\n  },\n\n  USE: 'use',\n\n  STRICT: 'strict',\n\n  watchFns: function() {\n    var result = [];\n    var inputs = this.state.inputs;\n    var self = this;\n    forEach(inputs, function(input) {\n      result.push('var ' + input.name + '=' + self.generateFunction(input.name, 's'));\n      if (input.isPure) {\n        result.push(input.name, '.isPure=' + JSON.stringify(input.isPure) + ';');\n      }\n    });\n    if (inputs.length) {\n      result.push('fn.inputs=[' + inputs.map(function(i) { return i.name; }).join(',') + '];');\n    }\n    return result.join('');\n  },\n\n  generateFunction: function(name, params) {\n    return 'function(' + params + '){' +\n        this.varsPrefix(name) +\n        this.body(name) +\n        '};';\n  },\n\n  filterPrefix: function() {\n    var parts = [];\n    var self = this;\n    forEach(this.state.filters, function(id, filter) {\n      parts.push(id + '=$filter(' + self.escape(filter) + ')');\n    });\n    if (parts.length) return 'var ' + parts.join(',') + ';';\n    return '';\n  },\n\n  varsPrefix: function(section) {\n    return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : '';\n  },\n\n  body: function(section) {\n    return this.state[section].body.join('');\n  },\n\n  recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var left, right, self = this, args, expression, computed;\n    recursionFn = recursionFn || noop;\n    if (!skipWatchIdCheck && isDefined(ast.watchId)) {\n      intoId = intoId || this.nextId();\n      this.if_('i',\n        this.lazyAssign(intoId, this.computedMember('i', ast.watchId)),\n        this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true)\n      );\n      return;\n    }\n    switch (ast.type) {\n    case AST.Program:\n      forEach(ast.body, function(expression, pos) {\n        self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; });\n        if (pos !== ast.body.length - 1) {\n          self.current().body.push(right, ';');\n        } else {\n          self.return_(right);\n        }\n      });\n      break;\n    case AST.Literal:\n      expression = this.escape(ast.value);\n      this.assign(intoId, expression);\n      recursionFn(intoId || expression);\n      break;\n    case AST.UnaryExpression:\n      this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; });\n      expression = ast.operator + '(' + this.ifDefined(right, 0) + ')';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.BinaryExpression:\n      this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; });\n      this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; });\n      if (ast.operator === '+') {\n        expression = this.plus(left, right);\n      } else if (ast.operator === '-') {\n        expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0);\n      } else {\n        expression = '(' + left + ')' + ast.operator + '(' + right + ')';\n      }\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.LogicalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.left, intoId);\n      self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.ConditionalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.test, intoId);\n      self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.Identifier:\n      intoId = intoId || this.nextId();\n      if (nameId) {\n        nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s');\n        nameId.computed = false;\n        nameId.name = ast.name;\n      }\n      self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)),\n        function() {\n          self.if_(self.stage === 'inputs' || 's', function() {\n            if (create && create !== 1) {\n              self.if_(\n                self.isNull(self.nonComputedMember('s', ast.name)),\n                self.lazyAssign(self.nonComputedMember('s', ast.name), '{}'));\n            }\n            self.assign(intoId, self.nonComputedMember('s', ast.name));\n          });\n        }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name))\n        );\n      recursionFn(intoId);\n      break;\n    case AST.MemberExpression:\n      left = nameId && (nameId.context = this.nextId()) || this.nextId();\n      intoId = intoId || this.nextId();\n      self.recurse(ast.object, left, undefined, function() {\n        self.if_(self.notNull(left), function() {\n          if (ast.computed) {\n            right = self.nextId();\n            self.recurse(ast.property, right);\n            self.getStringValue(right);\n            if (create && create !== 1) {\n              self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}'));\n            }\n            expression = self.computedMember(left, right);\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = true;\n              nameId.name = right;\n            }\n          } else {\n            if (create && create !== 1) {\n              self.if_(self.isNull(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}'));\n            }\n            expression = self.nonComputedMember(left, ast.property.name);\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = false;\n              nameId.name = ast.property.name;\n            }\n          }\n        }, function() {\n          self.assign(intoId, 'undefined');\n        });\n        recursionFn(intoId);\n      }, !!create);\n      break;\n    case AST.CallExpression:\n      intoId = intoId || this.nextId();\n      if (ast.filter) {\n        right = self.filter(ast.callee.name);\n        args = [];\n        forEach(ast.arguments, function(expr) {\n          var argument = self.nextId();\n          self.recurse(expr, argument);\n          args.push(argument);\n        });\n        expression = right + '(' + args.join(',') + ')';\n        self.assign(intoId, expression);\n        recursionFn(intoId);\n      } else {\n        right = self.nextId();\n        left = {};\n        args = [];\n        self.recurse(ast.callee, right, left, function() {\n          self.if_(self.notNull(right), function() {\n            forEach(ast.arguments, function(expr) {\n              self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) {\n                args.push(argument);\n              });\n            });\n            if (left.name) {\n              expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')';\n            } else {\n              expression = right + '(' + args.join(',') + ')';\n            }\n            self.assign(intoId, expression);\n          }, function() {\n            self.assign(intoId, 'undefined');\n          });\n          recursionFn(intoId);\n        });\n      }\n      break;\n    case AST.AssignmentExpression:\n      right = this.nextId();\n      left = {};\n      this.recurse(ast.left, undefined, left, function() {\n        self.if_(self.notNull(left.context), function() {\n          self.recurse(ast.right, right);\n          expression = self.member(left.context, left.name, left.computed) + ast.operator + right;\n          self.assign(intoId, expression);\n          recursionFn(intoId || expression);\n        });\n      }, 1);\n      break;\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) {\n          args.push(argument);\n        });\n      });\n      expression = '[' + args.join(',') + ']';\n      this.assign(intoId, expression);\n      recursionFn(intoId || expression);\n      break;\n    case AST.ObjectExpression:\n      args = [];\n      computed = false;\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          computed = true;\n        }\n      });\n      if (computed) {\n        intoId = intoId || this.nextId();\n        this.assign(intoId, '{}');\n        forEach(ast.properties, function(property) {\n          if (property.computed) {\n            left = self.nextId();\n            self.recurse(property.key, left);\n          } else {\n            left = property.key.type === AST.Identifier ?\n                       property.key.name :\n                       ('' + property.key.value);\n          }\n          right = self.nextId();\n          self.recurse(property.value, right);\n          self.assign(self.member(intoId, left, property.computed), right);\n        });\n      } else {\n        forEach(ast.properties, function(property) {\n          self.recurse(property.value, ast.constant ? undefined : self.nextId(), undefined, function(expr) {\n            args.push(self.escape(\n                property.key.type === AST.Identifier ? property.key.name :\n                  ('' + property.key.value)) +\n                ':' + expr);\n          });\n        });\n        expression = '{' + args.join(',') + '}';\n        this.assign(intoId, expression);\n      }\n      recursionFn(intoId || expression);\n      break;\n    case AST.ThisExpression:\n      this.assign(intoId, 's');\n      recursionFn(intoId || 's');\n      break;\n    case AST.LocalsExpression:\n      this.assign(intoId, 'l');\n      recursionFn(intoId || 'l');\n      break;\n    case AST.NGValueParameter:\n      this.assign(intoId, 'v');\n      recursionFn(intoId || 'v');\n      break;\n    }\n  },\n\n  getHasOwnProperty: function(element, property) {\n    var key = element + '.' + property;\n    var own = this.current().own;\n    if (!own.hasOwnProperty(key)) {\n      own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')');\n    }\n    return own[key];\n  },\n\n  assign: function(id, value) {\n    if (!id) return;\n    this.current().body.push(id, '=', value, ';');\n    return id;\n  },\n\n  filter: function(filterName) {\n    if (!this.state.filters.hasOwnProperty(filterName)) {\n      this.state.filters[filterName] = this.nextId(true);\n    }\n    return this.state.filters[filterName];\n  },\n\n  ifDefined: function(id, defaultValue) {\n    return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')';\n  },\n\n  plus: function(left, right) {\n    return 'plus(' + left + ',' + right + ')';\n  },\n\n  return_: function(id) {\n    this.current().body.push('return ', id, ';');\n  },\n\n  if_: function(test, alternate, consequent) {\n    if (test === true) {\n      alternate();\n    } else {\n      var body = this.current().body;\n      body.push('if(', test, '){');\n      alternate();\n      body.push('}');\n      if (consequent) {\n        body.push('else{');\n        consequent();\n        body.push('}');\n      }\n    }\n  },\n\n  not: function(expression) {\n    return '!(' + expression + ')';\n  },\n\n  isNull: function(expression) {\n    return expression + '==null';\n  },\n\n  notNull: function(expression) {\n    return expression + '!=null';\n  },\n\n  nonComputedMember: function(left, right) {\n    var SAFE_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]*$/;\n    var UNSAFE_CHARACTERS = /[^$_a-zA-Z0-9]/g;\n    if (SAFE_IDENTIFIER.test(right)) {\n      return left + '.' + right;\n    } else {\n      return left  + '[\"' + right.replace(UNSAFE_CHARACTERS, this.stringEscapeFn) + '\"]';\n    }\n  },\n\n  computedMember: function(left, right) {\n    return left + '[' + right + ']';\n  },\n\n  member: function(left, right, computed) {\n    if (computed) return this.computedMember(left, right);\n    return this.nonComputedMember(left, right);\n  },\n\n  getStringValue: function(item) {\n    this.assign(item, 'getStringValue(' + item + ')');\n  },\n\n  lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var self = this;\n    return function() {\n      self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck);\n    };\n  },\n\n  lazyAssign: function(id, value) {\n    var self = this;\n    return function() {\n      self.assign(id, value);\n    };\n  },\n\n  stringEscapeRegex: /[^ a-zA-Z0-9]/g,\n\n  stringEscapeFn: function(c) {\n    return '\\\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);\n  },\n\n  escape: function(value) {\n    if (isString(value)) return '\\'' + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + '\\'';\n    if (isNumber(value)) return value.toString();\n    if (value === true) return 'true';\n    if (value === false) return 'false';\n    if (value === null) return 'null';\n    if (typeof value === 'undefined') return 'undefined';\n\n    throw $parseMinErr('esc', 'IMPOSSIBLE');\n  },\n\n  nextId: function(skip, init) {\n    var id = 'v' + (this.state.nextId++);\n    if (!skip) {\n      this.current().vars.push(id + (init ? '=' + init : ''));\n    }\n    return id;\n  },\n\n  current: function() {\n    return this.state[this.state.computing];\n  }\n};\n\n\nfunction ASTInterpreter($filter) {\n  this.$filter = $filter;\n}\n\nASTInterpreter.prototype = {\n  compile: function(ast) {\n    var self = this;\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var assignable;\n    var assign;\n    if ((assignable = assignableAST(ast))) {\n      assign = this.recurse(assignable);\n    }\n    var toWatch = getInputs(ast.body);\n    var inputs;\n    if (toWatch) {\n      inputs = [];\n      forEach(toWatch, function(watch, key) {\n        var input = self.recurse(watch);\n        input.isPure = watch.isPure;\n        watch.input = input;\n        inputs.push(input);\n        watch.watchId = key;\n      });\n    }\n    var expressions = [];\n    forEach(ast.body, function(expression) {\n      expressions.push(self.recurse(expression.expression));\n    });\n    var fn = ast.body.length === 0 ? noop :\n             ast.body.length === 1 ? expressions[0] :\n             function(scope, locals) {\n               var lastValue;\n               forEach(expressions, function(exp) {\n                 lastValue = exp(scope, locals);\n               });\n               return lastValue;\n             };\n    if (assign) {\n      fn.assign = function(scope, value, locals) {\n        return assign(scope, locals, value);\n      };\n    }\n    if (inputs) {\n      fn.inputs = inputs;\n    }\n    return fn;\n  },\n\n  recurse: function(ast, context, create) {\n    var left, right, self = this, args;\n    if (ast.input) {\n      return this.inputs(ast.input, ast.watchId);\n    }\n    switch (ast.type) {\n    case AST.Literal:\n      return this.value(ast.value, context);\n    case AST.UnaryExpression:\n      right = this.recurse(ast.argument);\n      return this['unary' + ast.operator](right, context);\n    case AST.BinaryExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.LogicalExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.ConditionalExpression:\n      return this['ternary?:'](\n        this.recurse(ast.test),\n        this.recurse(ast.alternate),\n        this.recurse(ast.consequent),\n        context\n      );\n    case AST.Identifier:\n      return self.identifier(ast.name, context, create);\n    case AST.MemberExpression:\n      left = this.recurse(ast.object, false, !!create);\n      if (!ast.computed) {\n        right = ast.property.name;\n      }\n      if (ast.computed) right = this.recurse(ast.property);\n      return ast.computed ?\n        this.computedMember(left, right, context, create) :\n        this.nonComputedMember(left, right, context, create);\n    case AST.CallExpression:\n      args = [];\n      forEach(ast.arguments, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      if (ast.filter) right = this.$filter(ast.callee.name);\n      if (!ast.filter) right = this.recurse(ast.callee, true);\n      return ast.filter ?\n        function(scope, locals, assign, inputs) {\n          var values = [];\n          for (var i = 0; i < args.length; ++i) {\n            values.push(args[i](scope, locals, assign, inputs));\n          }\n          var value = right.apply(undefined, values, inputs);\n          return context ? {context: undefined, name: undefined, value: value} : value;\n        } :\n        function(scope, locals, assign, inputs) {\n          var rhs = right(scope, locals, assign, inputs);\n          var value;\n          if (rhs.value != null) {\n            var values = [];\n            for (var i = 0; i < args.length; ++i) {\n              values.push(args[i](scope, locals, assign, inputs));\n            }\n            value = rhs.value.apply(rhs.context, values);\n          }\n          return context ? {value: value} : value;\n        };\n    case AST.AssignmentExpression:\n      left = this.recurse(ast.left, true, 1);\n      right = this.recurse(ast.right);\n      return function(scope, locals, assign, inputs) {\n        var lhs = left(scope, locals, assign, inputs);\n        var rhs = right(scope, locals, assign, inputs);\n        lhs.context[lhs.name] = rhs;\n        return context ? {value: rhs} : rhs;\n      };\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = [];\n        for (var i = 0; i < args.length; ++i) {\n          value.push(args[i](scope, locals, assign, inputs));\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ObjectExpression:\n      args = [];\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          args.push({key: self.recurse(property.key),\n                     computed: true,\n                     value: self.recurse(property.value)\n          });\n        } else {\n          args.push({key: property.key.type === AST.Identifier ?\n                          property.key.name :\n                          ('' + property.key.value),\n                     computed: false,\n                     value: self.recurse(property.value)\n          });\n        }\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = {};\n        for (var i = 0; i < args.length; ++i) {\n          if (args[i].computed) {\n            value[args[i].key(scope, locals, assign, inputs)] = args[i].value(scope, locals, assign, inputs);\n          } else {\n            value[args[i].key] = args[i].value(scope, locals, assign, inputs);\n          }\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ThisExpression:\n      return function(scope) {\n        return context ? {value: scope} : scope;\n      };\n    case AST.LocalsExpression:\n      return function(scope, locals) {\n        return context ? {value: locals} : locals;\n      };\n    case AST.NGValueParameter:\n      return function(scope, locals, assign) {\n        return context ? {value: assign} : assign;\n      };\n    }\n  },\n\n  'unary+': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = +arg;\n      } else {\n        arg = 0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary-': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = -arg;\n      } else {\n        arg = -0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary!': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = !argument(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary+': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = plusFn(lhs, rhs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary-': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary*': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary/': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary%': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary===': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary&&': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary||': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'ternary?:': function(test, alternate, consequent, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  value: function(value, context) {\n    return function() { return context ? {context: undefined, name: undefined, value: value} : value; };\n  },\n  identifier: function(name, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var base = locals && (name in locals) ? locals : scope;\n      if (create && create !== 1 && base && base[name] == null) {\n        base[name] = {};\n      }\n      var value = base ? base[name] : undefined;\n      if (context) {\n        return {context: base, name: name, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  computedMember: function(left, right, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs;\n      var value;\n      if (lhs != null) {\n        rhs = right(scope, locals, assign, inputs);\n        rhs = getStringValue(rhs);\n        if (create && create !== 1) {\n          if (lhs && !(lhs[rhs])) {\n            lhs[rhs] = {};\n          }\n        }\n        value = lhs[rhs];\n      }\n      if (context) {\n        return {context: lhs, name: rhs, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  nonComputedMember: function(left, right, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      if (create && create !== 1) {\n        if (lhs && lhs[right] == null) {\n          lhs[right] = {};\n        }\n      }\n      var value = lhs != null ? lhs[right] : undefined;\n      if (context) {\n        return {context: lhs, name: right, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  inputs: function(input, watchId) {\n    return function(scope, value, locals, inputs) {\n      if (inputs) return inputs[watchId];\n      return input(scope, value, locals);\n    };\n  }\n};\n\n/**\n * @constructor\n */\nfunction Parser(lexer, $filter, options) {\n  this.ast = new AST(lexer, options);\n  this.astCompiler = options.csp ? new ASTInterpreter($filter) :\n                                   new ASTCompiler($filter);\n}\n\nParser.prototype = {\n  constructor: Parser,\n\n  parse: function(text) {\n    var ast = this.getAst(text);\n    var fn = this.astCompiler.compile(ast.ast);\n    fn.literal = isLiteral(ast.ast);\n    fn.constant = isConstant(ast.ast);\n    fn.oneTime = ast.oneTime;\n    return fn;\n  },\n\n  getAst: function(exp) {\n    var oneTime = false;\n    exp = exp.trim();\n\n    if (exp.charAt(0) === ':' && exp.charAt(1) === ':') {\n      oneTime = true;\n      exp = exp.substring(2);\n    }\n    return {\n      ast: this.ast.ast(exp),\n      oneTime: oneTime\n    };\n  }\n};\n\nfunction getValueOf(value) {\n  return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value);\n}\n\n///////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $parse\n * @kind function\n *\n * @description\n *\n * Converts AngularJS {@link guide/expression expression} into a function.\n *\n * ```js\n *   var getter = $parse('user.name');\n *   var setter = getter.assign;\n *   var context = {user:{name:'AngularJS'}};\n *   var locals = {user:{name:'local'}};\n *\n *   expect(getter(context)).toEqual('AngularJS');\n *   setter(context, 'newValue');\n *   expect(context.user.name).toEqual('newValue');\n *   expect(getter(context, locals)).toEqual('local');\n * ```\n *\n *\n * @param {string} expression String expression to compile.\n * @returns {function(context, locals)} a function which represents the compiled expression:\n *\n *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n *      are evaluated against (typically a scope object).\n *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n *      `context`.\n *\n *    The returned function also has the following properties:\n *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript\n *        literal.\n *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript\n *        constant literals.\n *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be\n *        set to a function to change its value on the given context.\n *\n */\n\n\n/**\n * @ngdoc provider\n * @name $parseProvider\n * @this\n *\n * @description\n * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}\n *  service.\n */\nfunction $ParseProvider() {\n  var cache = createMap();\n  var literals = {\n    'true': true,\n    'false': false,\n    'null': null,\n    'undefined': undefined\n  };\n  var identStart, identContinue;\n\n  /**\n   * @ngdoc method\n   * @name $parseProvider#addLiteral\n   * @description\n   *\n   * Configure $parse service to add literal values that will be present as literal at expressions.\n   *\n   * @param {string} literalName Token for the literal value. The literal name value must be a valid literal name.\n   * @param {*} literalValue Value for this literal. All literal values must be primitives or `undefined`.\n   *\n   **/\n  this.addLiteral = function(literalName, literalValue) {\n    literals[literalName] = literalValue;\n  };\n\n /**\n  * @ngdoc method\n  * @name $parseProvider#setIdentifierFns\n  *\n  * @description\n  *\n  * Allows defining the set of characters that are allowed in AngularJS expressions. The function\n  * `identifierStart` will get called to know if a given character is a valid character to be the\n  * first character for an identifier. The function `identifierContinue` will get called to know if\n  * a given character is a valid character to be a follow-up identifier character. The functions\n  * `identifierStart` and `identifierContinue` will receive as arguments the single character to be\n  * identifier and the character code point. These arguments will be `string` and `numeric`. Keep in\n  * mind that the `string` parameter can be two characters long depending on the character\n  * representation. It is expected for the function to return `true` or `false`, whether that\n  * character is allowed or not.\n  *\n  * Since this function will be called extensively, keep the implementation of these functions fast,\n  * as the performance of these functions have a direct impact on the expressions parsing speed.\n  *\n  * @param {function=} identifierStart The function that will decide whether the given character is\n  *   a valid identifier start character.\n  * @param {function=} identifierContinue The function that will decide whether the given character is\n  *   a valid identifier continue character.\n  */\n  this.setIdentifierFns = function(identifierStart, identifierContinue) {\n    identStart = identifierStart;\n    identContinue = identifierContinue;\n    return this;\n  };\n\n  this.$get = ['$filter', function($filter) {\n    var noUnsafeEval = csp().noUnsafeEval;\n    var $parseOptions = {\n          csp: noUnsafeEval,\n          literals: copy(literals),\n          isIdentifierStart: isFunction(identStart) && identStart,\n          isIdentifierContinue: isFunction(identContinue) && identContinue\n        };\n    $parse.$$getAst = $$getAst;\n    return $parse;\n\n    function $parse(exp, interceptorFn) {\n      var parsedExpression, cacheKey;\n\n      switch (typeof exp) {\n        case 'string':\n          exp = exp.trim();\n          cacheKey = exp;\n\n          parsedExpression = cache[cacheKey];\n\n          if (!parsedExpression) {\n            var lexer = new Lexer($parseOptions);\n            var parser = new Parser(lexer, $filter, $parseOptions);\n            parsedExpression = parser.parse(exp);\n\n            cache[cacheKey] = addWatchDelegate(parsedExpression);\n          }\n          return addInterceptor(parsedExpression, interceptorFn);\n\n        case 'function':\n          return addInterceptor(exp, interceptorFn);\n\n        default:\n          return addInterceptor(noop, interceptorFn);\n      }\n    }\n\n    function $$getAst(exp) {\n      var lexer = new Lexer($parseOptions);\n      var parser = new Parser(lexer, $filter, $parseOptions);\n      return parser.getAst(exp).ast;\n    }\n\n    function expressionInputDirtyCheck(newValue, oldValueOfValue, compareObjectIdentity) {\n\n      if (newValue == null || oldValueOfValue == null) { // null/undefined\n        return newValue === oldValueOfValue;\n      }\n\n      if (typeof newValue === 'object') {\n\n        // attempt to convert the value to a primitive type\n        // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can\n        //             be cheaply dirty-checked\n        newValue = getValueOf(newValue);\n\n        if (typeof newValue === 'object' && !compareObjectIdentity) {\n          // objects/arrays are not supported - deep-watching them would be too expensive\n          return false;\n        }\n\n        // fall-through to the primitive equality check\n      }\n\n      //Primitive or NaN\n      // eslint-disable-next-line no-self-compare\n      return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue);\n    }\n\n    function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var inputExpressions = parsedExpression.inputs;\n      var lastResult;\n\n      if (inputExpressions.length === 1) {\n        var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        inputExpressions = inputExpressions[0];\n        return scope.$watch(function expressionInputWatch(scope) {\n          var newInputValue = inputExpressions(scope);\n          if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf, inputExpressions.isPure)) {\n            lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]);\n            oldInputValueOf = newInputValue && getValueOf(newInputValue);\n          }\n          return lastResult;\n        }, listener, objectEquality, prettyPrintExpression);\n      }\n\n      var oldInputValueOfValues = [];\n      var oldInputValues = [];\n      for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n        oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        oldInputValues[i] = null;\n      }\n\n      return scope.$watch(function expressionInputsWatch(scope) {\n        var changed = false;\n\n        for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n          var newInputValue = inputExpressions[i](scope);\n          if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i], inputExpressions[i].isPure))) {\n            oldInputValues[i] = newInputValue;\n            oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue);\n          }\n        }\n\n        if (changed) {\n          lastResult = parsedExpression(scope, undefined, undefined, oldInputValues);\n        }\n\n        return lastResult;\n      }, listener, objectEquality, prettyPrintExpression);\n    }\n\n    function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var isDone = parsedExpression.literal ? isAllDefined : isDefined;\n      var unwatch, lastValue;\n\n      var exp = parsedExpression.$$intercepted || parsedExpression;\n      var post = parsedExpression.$$interceptor || identity;\n\n      var useInputs = parsedExpression.inputs && !exp.inputs;\n\n      // Propogate the literal/inputs/constant attributes\n      // ... but not oneTime since we are handling it\n      oneTimeWatch.literal = parsedExpression.literal;\n      oneTimeWatch.constant = parsedExpression.constant;\n      oneTimeWatch.inputs = parsedExpression.inputs;\n\n      // Allow other delegates to run on this wrapped expression\n      addWatchDelegate(oneTimeWatch);\n\n      unwatch = scope.$watch(oneTimeWatch, listener, objectEquality, prettyPrintExpression);\n\n      return unwatch;\n\n      function unwatchIfDone() {\n        if (isDone(lastValue)) {\n          unwatch();\n        }\n      }\n\n      function oneTimeWatch(scope, locals, assign, inputs) {\n        lastValue = useInputs && inputs ? inputs[0] : exp(scope, locals, assign, inputs);\n        if (isDone(lastValue)) {\n          scope.$$postDigest(unwatchIfDone);\n        }\n        return post(lastValue);\n      }\n    }\n\n    function isAllDefined(value) {\n      var allDefined = true;\n      forEach(value, function(val) {\n        if (!isDefined(val)) allDefined = false;\n      });\n      return allDefined;\n    }\n\n    function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch = scope.$watch(function constantWatch(scope) {\n        unwatch();\n        return parsedExpression(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    function addWatchDelegate(parsedExpression) {\n      if (parsedExpression.constant) {\n        parsedExpression.$$watchDelegate = constantWatchDelegate;\n      } else if (parsedExpression.oneTime) {\n        parsedExpression.$$watchDelegate = oneTimeWatchDelegate;\n      } else if (parsedExpression.inputs) {\n        parsedExpression.$$watchDelegate = inputsWatchDelegate;\n      }\n\n      return parsedExpression;\n    }\n\n    function chainInterceptors(first, second) {\n      function chainedInterceptor(value) {\n        return second(first(value));\n      }\n      chainedInterceptor.$stateful = first.$stateful || second.$stateful;\n      chainedInterceptor.$$pure = first.$$pure && second.$$pure;\n\n      return chainedInterceptor;\n    }\n\n    function addInterceptor(parsedExpression, interceptorFn) {\n      if (!interceptorFn) return parsedExpression;\n\n      // Extract any existing interceptors out of the parsedExpression\n      // to ensure the original parsedExpression is always the $$intercepted\n      if (parsedExpression.$$interceptor) {\n        interceptorFn = chainInterceptors(parsedExpression.$$interceptor, interceptorFn);\n        parsedExpression = parsedExpression.$$intercepted;\n      }\n\n      var useInputs = false;\n\n      var fn = function interceptedExpression(scope, locals, assign, inputs) {\n        var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs);\n        return interceptorFn(value);\n      };\n\n      // Maintain references to the interceptor/intercepted\n      fn.$$intercepted = parsedExpression;\n      fn.$$interceptor = interceptorFn;\n\n      // Propogate the literal/oneTime/constant attributes\n      fn.literal = parsedExpression.literal;\n      fn.oneTime = parsedExpression.oneTime;\n      fn.constant = parsedExpression.constant;\n\n      // Treat the interceptor like filters.\n      // If it is not $stateful then only watch its inputs.\n      // If the expression itself has no inputs then use the full expression as an input.\n      if (!interceptorFn.$stateful) {\n        useInputs = !parsedExpression.inputs;\n        fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression];\n\n        if (!interceptorFn.$$pure) {\n          fn.inputs = fn.inputs.map(function(e) {\n              // Remove the isPure flag of inputs when it is not absolute because they are now wrapped in a\n              // non-pure interceptor function.\n              if (e.isPure === PURITY_RELATIVE) {\n                return function depurifier(s) { return e(s); };\n              }\n              return e;\n            });\n        }\n      }\n\n      return addWatchDelegate(fn);\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $q\n * @requires $rootScope\n *\n * @description\n * A service that helps you run functions asynchronously, and use their return values (or exceptions)\n * when they are done processing.\n *\n * This is a [Promises/A+](https://promisesaplus.com/)-compliant implementation of promises/deferred\n * objects inspired by [Kris Kowal's Q](https://github.com/kriskowal/q).\n *\n * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred\n * implementations, and the other which resembles ES6 (ES2015) promises to some degree.\n *\n * ## $q constructor\n *\n * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver`\n * function as the first argument. This is similar to the native Promise implementation from ES6,\n * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).\n *\n * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are\n * available yet.\n *\n * It can be used like so:\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     // perform some asynchronous operation, resolve or reject the promise when appropriate.\n *     return $q(function(resolve, reject) {\n *       setTimeout(function() {\n *         if (okToGreet(name)) {\n *           resolve('Hello, ' + name + '!');\n *         } else {\n *           reject('Greeting ' + name + ' is not allowed.');\n *         }\n *       }, 1000);\n *     });\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   });\n * ```\n *\n * Note: progress/notify callbacks are not currently supported via the ES6-style interface.\n *\n * Note: unlike ES6 behavior, an exception thrown in the constructor function will NOT implicitly reject the promise.\n *\n * However, the more traditional CommonJS-style usage is still available, and documented below.\n *\n * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an\n * interface for interacting with an object that represents the result of an action that is\n * performed asynchronously, and may or may not be finished at any given point in time.\n *\n * From the perspective of dealing with error handling, deferred and promise APIs are to\n * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     var deferred = $q.defer();\n *\n *     setTimeout(function() {\n *       deferred.notify('About to greet ' + name + '.');\n *\n *       if (okToGreet(name)) {\n *         deferred.resolve('Hello, ' + name + '!');\n *       } else {\n *         deferred.reject('Greeting ' + name + ' is not allowed.');\n *       }\n *     }, 1000);\n *\n *     return deferred.promise;\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   }, function(update) {\n *     alert('Got notification: ' + update);\n *   });\n * ```\n *\n * At first it might not be obvious why this extra complexity is worth the trouble. The payoff\n * comes in the way of guarantees that promise and deferred APIs make, see\n * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.\n *\n * Additionally the promise api allows for composition that is very hard to do with the\n * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.\n * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the\n * section on serial or parallel joining of promises.\n *\n * ## The Deferred API\n *\n * A new instance of deferred is constructed by calling `$q.defer()`.\n *\n * The purpose of the deferred object is to expose the associated Promise instance as well as APIs\n * that can be used for signaling the successful or unsuccessful completion, as well as the status\n * of the task.\n *\n * **Methods**\n *\n * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection\n *   constructed via `$q.reject`, the promise will be rejected instead.\n * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to\n *   resolving it with a rejection constructed via `$q.reject`.\n * - `notify(value)` - provides updates on the status of the promise's execution. This may be called\n *   multiple times before the promise is either resolved or rejected.\n *\n * **Properties**\n *\n * - promise – `{Promise}` – promise object associated with this deferred.\n *\n *\n * ## The Promise API\n *\n * A new promise instance is created when a deferred instance is created and can be retrieved by\n * calling `deferred.promise`.\n *\n * The purpose of the promise object is to allow for interested parties to get access to the result\n * of the deferred task when it completes.\n *\n * **Methods**\n *\n * - `then(successCallback, [errorCallback], [notifyCallback])` – regardless of when the promise was or\n *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously\n *   as soon as the result is available. The callbacks are called with a single argument: the result\n *   or rejection reason. Additionally, the notify callback may be called zero or more times to\n *   provide a progress indication, before the promise is resolved or rejected.\n *\n *   This method *returns a new promise* which is resolved or rejected via the return value of the\n *   `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved\n *   with the value which is resolved in that promise using\n *   [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)).\n *   It also notifies via the return value of the `notifyCallback` method. The promise cannot be\n *   resolved or rejected from the notifyCallback method. The errorCallback and notifyCallback\n *   arguments are optional.\n *\n * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`\n *\n * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise,\n *   but to do so without modifying the final value. This is useful to release resources or do some\n *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full\n *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for\n *   more information.\n *\n * ## Chaining promises\n *\n * Because calling the `then` method of a promise returns a new derived promise, it is easily\n * possible to create a chain of promises:\n *\n * ```js\n *   promiseB = promiseA.then(function(result) {\n *     return result + 1;\n *   });\n *\n *   // promiseB will be resolved immediately after promiseA is resolved and its value\n *   // will be the result of promiseA incremented by 1\n * ```\n *\n * It is possible to create chains of any length and since a promise can be resolved with another\n * promise (which will defer its resolution further), it is possible to pause/defer resolution of\n * the promises at any point in the chain. This makes it possible to implement powerful APIs like\n * $http's response interceptors.\n *\n *\n * ## Differences between Kris Kowal's Q and $q\n *\n *  There are two main differences:\n *\n * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation\n *   mechanism in AngularJS, which means faster propagation of resolution or rejection into your\n *   models and avoiding unnecessary browser repaints, which would result in flickering UI.\n * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains\n *   all the important functionality needed for common async tasks.\n *\n * ## Testing\n *\n *  ```js\n *    it('should simulate promise', inject(function($q, $rootScope) {\n *      var deferred = $q.defer();\n *      var promise = deferred.promise;\n *      var resolvedValue;\n *\n *      promise.then(function(value) { resolvedValue = value; });\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Simulate resolving of promise\n *      deferred.resolve(123);\n *      // Note that the 'then' function does not get called synchronously.\n *      // This is because we want the promise API to always be async, whether or not\n *      // it got called synchronously or asynchronously.\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Propagate promise resolution to 'then' functions using $apply().\n *      $rootScope.$apply();\n *      expect(resolvedValue).toEqual(123);\n *    }));\n *  ```\n *\n * @param {function(function, function)} resolver Function which is responsible for resolving or\n *   rejecting the newly created promise. The first parameter is a function which resolves the\n *   promise, the second parameter is a function which rejects the promise.\n *\n * @returns {Promise} The newly created promise.\n */\n/**\n * @ngdoc provider\n * @name $qProvider\n * @this\n *\n * @description\n */\nfunction $QProvider() {\n  var errorOnUnhandledRejections = true;\n  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $rootScope.$evalAsync(callback);\n    }, $exceptionHandler, errorOnUnhandledRejections);\n  }];\n\n  /**\n   * @ngdoc method\n   * @name $qProvider#errorOnUnhandledRejections\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides whether to generate an error when a rejected promise is not handled.\n   * This feature is enabled by default.\n   *\n   * @param {boolean=} value Whether to generate an error when a rejected promise is not handled.\n   * @returns {boolean|ng.$qProvider} Current value when called without a new value or self for\n   *    chaining otherwise.\n   */\n  this.errorOnUnhandledRejections = function(value) {\n    if (isDefined(value)) {\n      errorOnUnhandledRejections = value;\n      return this;\n    } else {\n      return errorOnUnhandledRejections;\n    }\n  };\n}\n\n/** @this */\nfunction $$QProvider() {\n  var errorOnUnhandledRejections = true;\n  this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $browser.defer(callback);\n    }, $exceptionHandler, errorOnUnhandledRejections);\n  }];\n\n  this.errorOnUnhandledRejections = function(value) {\n    if (isDefined(value)) {\n      errorOnUnhandledRejections = value;\n      return this;\n    } else {\n      return errorOnUnhandledRejections;\n    }\n  };\n}\n\n/**\n * Constructs a promise manager.\n *\n * @param {function(function)} nextTick Function for executing functions in the next turn.\n * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for\n *     debugging purposes.\n * @param {boolean=} errorOnUnhandledRejections Whether an error should be generated on unhandled\n *     promises rejections.\n * @returns {object} Promise manager.\n */\nfunction qFactory(nextTick, exceptionHandler, errorOnUnhandledRejections) {\n  var $qMinErr = minErr('$q', TypeError);\n  var queueSize = 0;\n  var checkQueue = [];\n\n  /**\n   * @ngdoc method\n   * @name ng.$q#defer\n   * @kind function\n   *\n   * @description\n   * Creates a `Deferred` object which represents a task which will finish in the future.\n   *\n   * @returns {Deferred} Returns a new instance of deferred.\n   */\n  function defer() {\n    return new Deferred();\n  }\n\n  function Deferred() {\n    var promise = this.promise = new Promise();\n    //Non prototype methods necessary to support unbound execution :/\n    this.resolve = function(val) { resolvePromise(promise, val); };\n    this.reject = function(reason) { rejectPromise(promise, reason); };\n    this.notify = function(progress) { notifyPromise(promise, progress); };\n  }\n\n\n  function Promise() {\n    this.$$state = { status: 0 };\n  }\n\n  extend(Promise.prototype, {\n    then: function(onFulfilled, onRejected, progressBack) {\n      if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) {\n        return this;\n      }\n      var result = new Promise();\n\n      this.$$state.pending = this.$$state.pending || [];\n      this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]);\n      if (this.$$state.status > 0) scheduleProcessQueue(this.$$state);\n\n      return result;\n    },\n\n    'catch': function(callback) {\n      return this.then(null, callback);\n    },\n\n    'finally': function(callback, progressBack) {\n      return this.then(function(value) {\n        return handleCallback(value, resolve, callback);\n      }, function(error) {\n        return handleCallback(error, reject, callback);\n      }, progressBack);\n    }\n  });\n\n  function processQueue(state) {\n    var fn, promise, pending;\n\n    pending = state.pending;\n    state.processScheduled = false;\n    state.pending = undefined;\n    try {\n      for (var i = 0, ii = pending.length; i < ii; ++i) {\n        markQStateExceptionHandled(state);\n        promise = pending[i][0];\n        fn = pending[i][state.status];\n        try {\n          if (isFunction(fn)) {\n            resolvePromise(promise, fn(state.value));\n          } else if (state.status === 1) {\n            resolvePromise(promise, state.value);\n          } else {\n            rejectPromise(promise, state.value);\n          }\n        } catch (e) {\n          rejectPromise(promise, e);\n          // This error is explicitly marked for being passed to the $exceptionHandler\n          if (e && e.$$passToExceptionHandler === true) {\n            exceptionHandler(e);\n          }\n        }\n      }\n    } finally {\n      --queueSize;\n      if (errorOnUnhandledRejections && queueSize === 0) {\n        nextTick(processChecks);\n      }\n    }\n  }\n\n  function processChecks() {\n    // eslint-disable-next-line no-unmodified-loop-condition\n    while (!queueSize && checkQueue.length) {\n      var toCheck = checkQueue.shift();\n      if (!isStateExceptionHandled(toCheck)) {\n        markQStateExceptionHandled(toCheck);\n        var errorMessage = 'Possibly unhandled rejection: ' + toDebugString(toCheck.value);\n        if (isError(toCheck.value)) {\n          exceptionHandler(toCheck.value, errorMessage);\n        } else {\n          exceptionHandler(errorMessage);\n        }\n      }\n    }\n  }\n\n  function scheduleProcessQueue(state) {\n    if (errorOnUnhandledRejections && !state.pending && state.status === 2 && !isStateExceptionHandled(state)) {\n      if (queueSize === 0 && checkQueue.length === 0) {\n        nextTick(processChecks);\n      }\n      checkQueue.push(state);\n    }\n    if (state.processScheduled || !state.pending) return;\n    state.processScheduled = true;\n    ++queueSize;\n    nextTick(function() { processQueue(state); });\n  }\n\n  function resolvePromise(promise, val) {\n    if (promise.$$state.status) return;\n    if (val === promise) {\n      $$reject(promise, $qMinErr(\n        'qcycle',\n        'Expected promise to be resolved with value other than itself \\'{0}\\'',\n        val));\n    } else {\n      $$resolve(promise, val);\n    }\n\n  }\n\n  function $$resolve(promise, val) {\n    var then;\n    var done = false;\n    try {\n      if (isObject(val) || isFunction(val)) then = val.then;\n      if (isFunction(then)) {\n        promise.$$state.status = -1;\n        then.call(val, doResolve, doReject, doNotify);\n      } else {\n        promise.$$state.value = val;\n        promise.$$state.status = 1;\n        scheduleProcessQueue(promise.$$state);\n      }\n    } catch (e) {\n      doReject(e);\n    }\n\n    function doResolve(val) {\n      if (done) return;\n      done = true;\n      $$resolve(promise, val);\n    }\n    function doReject(val) {\n      if (done) return;\n      done = true;\n      $$reject(promise, val);\n    }\n    function doNotify(progress) {\n      notifyPromise(promise, progress);\n    }\n  }\n\n  function rejectPromise(promise, reason) {\n    if (promise.$$state.status) return;\n    $$reject(promise, reason);\n  }\n\n  function $$reject(promise, reason) {\n    promise.$$state.value = reason;\n    promise.$$state.status = 2;\n    scheduleProcessQueue(promise.$$state);\n  }\n\n  function notifyPromise(promise, progress) {\n    var callbacks = promise.$$state.pending;\n\n    if ((promise.$$state.status <= 0) && callbacks && callbacks.length) {\n      nextTick(function() {\n        var callback, result;\n        for (var i = 0, ii = callbacks.length; i < ii; i++) {\n          result = callbacks[i][0];\n          callback = callbacks[i][3];\n          try {\n            notifyPromise(result, isFunction(callback) ? callback(progress) : progress);\n          } catch (e) {\n            exceptionHandler(e);\n          }\n        }\n      });\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#reject\n   * @kind function\n   *\n   * @description\n   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be\n   * used to forward rejection in a chain of promises. If you are dealing with the last promise in\n   * a promise chain, you don't need to worry about it.\n   *\n   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of\n   * `reject` as the `throw` keyword in JavaScript. This also means that if you \"catch\" an error via\n   * a promise error callback and you want to forward the error to the promise derived from the\n   * current promise, you have to \"rethrow\" the error by returning a rejection constructed via\n   * `reject`.\n   *\n   * ```js\n   *   promiseB = promiseA.then(function(result) {\n   *     // success: do something and resolve promiseB\n   *     //          with the old or a new result\n   *     return result;\n   *   }, function(reason) {\n   *     // error: handle the error if possible and\n   *     //        resolve promiseB with newPromiseOrValue,\n   *     //        otherwise forward the rejection to promiseB\n   *     if (canHandle(reason)) {\n   *      // handle the error and recover\n   *      return newPromiseOrValue;\n   *     }\n   *     return $q.reject(reason);\n   *   });\n   * ```\n   *\n   * @param {*} reason Constant, message, exception or an object representing the rejection reason.\n   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.\n   */\n  function reject(reason) {\n    var result = new Promise();\n    rejectPromise(result, reason);\n    return result;\n  }\n\n  function handleCallback(value, resolver, callback) {\n    var callbackOutput = null;\n    try {\n      if (isFunction(callback)) callbackOutput = callback();\n    } catch (e) {\n      return reject(e);\n    }\n    if (isPromiseLike(callbackOutput)) {\n      return callbackOutput.then(function() {\n        return resolver(value);\n      }, reject);\n    } else {\n      return resolver(value);\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#when\n   * @kind function\n   *\n   * @description\n   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.\n   * This is useful when you are dealing with an object that might or might not be a promise, or if\n   * the promise comes from a source that can't be trusted.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n\n\n  function when(value, callback, errback, progressBack) {\n    var result = new Promise();\n    resolvePromise(result, value);\n    return result.then(callback, errback, progressBack);\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#resolve\n   * @kind function\n   *\n   * @description\n   * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n  var resolve = when;\n\n  /**\n   * @ngdoc method\n   * @name $q#all\n   * @kind function\n   *\n   * @description\n   * Combines multiple promises into a single promise that is resolved when all of the input\n   * promises are resolved.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,\n   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.\n   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected\n   *   with the same rejection value.\n   */\n\n  function all(promises) {\n    var result = new Promise(),\n        counter = 0,\n        results = isArray(promises) ? [] : {};\n\n    forEach(promises, function(promise, key) {\n      counter++;\n      when(promise).then(function(value) {\n        results[key] = value;\n        if (!(--counter)) resolvePromise(result, results);\n      }, function(reason) {\n        rejectPromise(result, reason);\n      });\n    });\n\n    if (counter === 0) {\n      resolvePromise(result, results);\n    }\n\n    return result;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#race\n   * @kind function\n   *\n   * @description\n   * Returns a promise that resolves or rejects as soon as one of those promises\n   * resolves or rejects, with the value or reason from that promise.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} a promise that resolves or rejects as soon as one of the `promises`\n   * resolves or rejects, with the value or reason from that promise.\n   */\n\n  function race(promises) {\n    var deferred = defer();\n\n    forEach(promises, function(promise) {\n      when(promise).then(deferred.resolve, deferred.reject);\n    });\n\n    return deferred.promise;\n  }\n\n  function $Q(resolver) {\n    if (!isFunction(resolver)) {\n      throw $qMinErr('norslvr', 'Expected resolverFn, got \\'{0}\\'', resolver);\n    }\n\n    var promise = new Promise();\n\n    function resolveFn(value) {\n      resolvePromise(promise, value);\n    }\n\n    function rejectFn(reason) {\n      rejectPromise(promise, reason);\n    }\n\n    resolver(resolveFn, rejectFn);\n\n    return promise;\n  }\n\n  // Let's make the instanceof operator work for promises, so that\n  // `new $q(fn) instanceof $q` would evaluate to true.\n  $Q.prototype = Promise.prototype;\n\n  $Q.defer = defer;\n  $Q.reject = reject;\n  $Q.when = when;\n  $Q.resolve = resolve;\n  $Q.all = all;\n  $Q.race = race;\n\n  return $Q;\n}\n\nfunction isStateExceptionHandled(state) {\n  return !!state.pur;\n}\nfunction markQStateExceptionHandled(state) {\n  state.pur = true;\n}\nfunction markQExceptionHandled(q) {\n  // Built-in `$q` promises will always have a `$$state` property. This check is to allow\n  // overwriting `$q` with a different promise library (e.g. Bluebird + angular-bluebird-promises).\n  // (Currently, this is the only method that might be called with a promise, even if it is not\n  // created by the built-in `$q`.)\n  if (q.$$state) {\n    markQStateExceptionHandled(q.$$state);\n  }\n}\n\n/** @this */\nfunction $$RAFProvider() { //rAF\n  this.$get = ['$window', '$timeout', function($window, $timeout) {\n    var requestAnimationFrame = $window.requestAnimationFrame ||\n                                $window.webkitRequestAnimationFrame;\n\n    var cancelAnimationFrame = $window.cancelAnimationFrame ||\n                               $window.webkitCancelAnimationFrame ||\n                               $window.webkitCancelRequestAnimationFrame;\n\n    var rafSupported = !!requestAnimationFrame;\n    var raf = rafSupported\n      ? function(fn) {\n          var id = requestAnimationFrame(fn);\n          return function() {\n            cancelAnimationFrame(id);\n          };\n        }\n      : function(fn) {\n          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666\n          return function() {\n            $timeout.cancel(timer);\n          };\n        };\n\n    raf.supported = rafSupported;\n\n    return raf;\n  }];\n}\n\n/**\n * DESIGN NOTES\n *\n * The design decisions behind the scope are heavily favored for speed and memory consumption.\n *\n * The typical use of scope is to watch the expressions, which most of the time return the same\n * value as last time so we optimize the operation.\n *\n * Closures construction is expensive in terms of speed as well as memory:\n *   - No closures, instead use prototypical inheritance for API\n *   - Internal state needs to be stored on scope directly, which means that private state is\n *     exposed as $$____ properties\n *\n * Loop operations are optimized by using while(count--) { ... }\n *   - This means that in order to keep the same order of execution as addition we have to add\n *     items to the array at the beginning (unshift) instead of at the end (push)\n *\n * Child scopes are created and removed often\n *   - Using an array would be slow since inserts in the middle are expensive; so we use linked lists\n *\n * There are fewer watches than observers. This is why you don't want the observer to be implemented\n * in the same way as watch. Watch requires return of the initialization function which is expensive\n * to construct.\n */\n\n\n/**\n * @ngdoc provider\n * @name $rootScopeProvider\n * @description\n *\n * Provider for the $rootScope service.\n */\n\n/**\n * @ngdoc method\n * @name $rootScopeProvider#digestTtl\n * @description\n *\n * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and\n * assuming that the model is unstable.\n *\n * The current default is 10 iterations.\n *\n * In complex applications it's possible that the dependencies between `$watch`s will result in\n * several digest iterations. However if an application needs more than the default 10 digest\n * iterations for its model to stabilize then you should investigate what is causing the model to\n * continuously change during the digest.\n *\n * Increasing the TTL could have performance implications, so you should not change it without\n * proper justification.\n *\n * @param {number} limit The number of digest iterations.\n */\n\n\n/**\n * @ngdoc service\n * @name $rootScope\n * @this\n *\n * @description\n *\n * Every application has a single root {@link ng.$rootScope.Scope scope}.\n * All other scopes are descendant scopes of the root scope. Scopes provide separation\n * between the model and the view, via a mechanism for watching the model for changes.\n * They also provide event emission/broadcast and subscription facility. See the\n * {@link guide/scope developer guide on scopes}.\n */\nfunction $RootScopeProvider() {\n  var TTL = 10;\n  var $rootScopeMinErr = minErr('$rootScope');\n  var lastDirtyWatch = null;\n  var applyAsyncId = null;\n\n  this.digestTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n    }\n    return TTL;\n  };\n\n  function createChildScopeClass(parent) {\n    function ChildScope() {\n      this.$$watchers = this.$$nextSibling =\n          this.$$childHead = this.$$childTail = null;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$id = nextUid();\n      this.$$ChildScope = null;\n      this.$$suspended = false;\n    }\n    ChildScope.prototype = parent;\n    return ChildScope;\n  }\n\n  this.$get = ['$exceptionHandler', '$parse', '$browser',\n      function($exceptionHandler, $parse, $browser) {\n\n    function destroyChildScope($event) {\n        $event.currentScope.$$destroyed = true;\n    }\n\n    function cleanUpScope($scope) {\n\n      // Support: IE 9 only\n      if (msie === 9) {\n        // There is a memory leak in IE9 if all child scopes are not disconnected\n        // completely when a scope is destroyed. So this code will recurse up through\n        // all this scopes children\n        //\n        // See issue https://github.com/angular/angular.js/issues/10706\n        if ($scope.$$childHead) {\n          cleanUpScope($scope.$$childHead);\n        }\n        if ($scope.$$nextSibling) {\n          cleanUpScope($scope.$$nextSibling);\n        }\n      }\n\n      // The code below works around IE9 and V8's memory leaks\n      //\n      // See:\n      // - https://code.google.com/p/v8/issues/detail?id=2073#c26\n      // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909\n      // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451\n\n      $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead =\n          $scope.$$childTail = $scope.$root = $scope.$$watchers = null;\n    }\n\n    /**\n     * @ngdoc type\n     * @name $rootScope.Scope\n     *\n     * @description\n     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the\n     * {@link auto.$injector $injector}. Child scopes are created using the\n     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when\n     * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for\n     * an in-depth introduction and usage examples.\n     *\n     *\n     * ## Inheritance\n     * A scope can inherit from a parent scope, as in this example:\n     * ```js\n         var parent = $rootScope;\n         var child = parent.$new();\n\n         parent.salutation = \"Hello\";\n         expect(child.salutation).toEqual('Hello');\n\n         child.salutation = \"Welcome\";\n         expect(child.salutation).toEqual('Welcome');\n         expect(parent.salutation).toEqual('Hello');\n     * ```\n     *\n     * When interacting with `Scope` in tests, additional helper methods are available on the\n     * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional\n     * details.\n     *\n     *\n     * @param {Object.<string, function()>=} providers Map of service factory which need to be\n     *                                       provided for the current scope. Defaults to {@link ng}.\n     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should\n     *                              append/override services provided by `providers`. This is handy\n     *                              when unit-testing and having the need to override a default\n     *                              service.\n     * @returns {Object} Newly created scope.\n     *\n     */\n    function Scope() {\n      this.$id = nextUid();\n      this.$$phase = this.$parent = this.$$watchers =\n                     this.$$nextSibling = this.$$prevSibling =\n                     this.$$childHead = this.$$childTail = null;\n      this.$root = this;\n      this.$$destroyed = false;\n      this.$$suspended = false;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$$isolateBindings = null;\n    }\n\n    /**\n     * @ngdoc property\n     * @name $rootScope.Scope#$id\n     *\n     * @description\n     * Unique scope ID (monotonically increasing) useful for debugging.\n     */\n\n     /**\n      * @ngdoc property\n      * @name $rootScope.Scope#$parent\n      *\n      * @description\n      * Reference to the parent scope.\n      */\n\n      /**\n       * @ngdoc property\n       * @name $rootScope.Scope#$root\n       *\n       * @description\n       * Reference to the root scope.\n       */\n\n    Scope.prototype = {\n      constructor: Scope,\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$new\n       * @kind function\n       *\n       * @description\n       * Creates a new child {@link ng.$rootScope.Scope scope}.\n       *\n       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.\n       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.\n       *\n       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is\n       * desired for the scope and its child scopes to be permanently detached from the parent and\n       * thus stop participating in model change detection and listener notification by invoking.\n       *\n       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the\n       *         parent scope. The scope is isolated, as it can not see parent scope properties.\n       *         When creating widgets, it is useful for the widget to not accidentally read parent\n       *         state.\n       *\n       * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent`\n       *                              of the newly created scope. Defaults to `this` scope if not provided.\n       *                              This is used when creating a transclude scope to correctly place it\n       *                              in the scope hierarchy while maintaining the correct prototypical\n       *                              inheritance.\n       *\n       * @returns {Object} The newly created child scope.\n       *\n       */\n      $new: function(isolate, parent) {\n        var child;\n\n        parent = parent || this;\n\n        if (isolate) {\n          child = new Scope();\n          child.$root = this.$root;\n        } else {\n          // Only create a child scope class if somebody asks for one,\n          // but cache it to allow the VM to optimize lookups.\n          if (!this.$$ChildScope) {\n            this.$$ChildScope = createChildScopeClass(this);\n          }\n          child = new this.$$ChildScope();\n        }\n        child.$parent = parent;\n        child.$$prevSibling = parent.$$childTail;\n        if (parent.$$childHead) {\n          parent.$$childTail.$$nextSibling = child;\n          parent.$$childTail = child;\n        } else {\n          parent.$$childHead = parent.$$childTail = child;\n        }\n\n        // When the new scope is not isolated or we inherit from `this`, and\n        // the parent scope is destroyed, the property `$$destroyed` is inherited\n        // prototypically. In all other cases, this property needs to be set\n        // when the parent scope is destroyed.\n        // The listener needs to be added after the parent is set\n        if (isolate || parent !== this) child.$on('$destroy', destroyChildScope);\n\n        return child;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watch\n       * @kind function\n       *\n       * @description\n       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.\n       *\n       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest\n       *   $digest()} and should return the value that will be watched. (`watchExpression` should not change\n       *   its value when executed multiple times with the same input because it may be executed multiple\n       *   times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be\n       *   [idempotent](http://en.wikipedia.org/wiki/Idempotence).)\n       * - The `listener` is called only when the value from the current `watchExpression` and the\n       *   previous call to `watchExpression` are not equal (with the exception of the initial run,\n       *   see below). Inequality is determined according to reference inequality,\n       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)\n       *    via the `!==` Javascript operator, unless `objectEquality == true`\n       *   (see next point)\n       * - When `objectEquality == true`, inequality of the `watchExpression` is determined\n       *   according to the {@link angular.equals} function. To save the value of the object for\n       *   later comparison, the {@link angular.copy} function is used. This therefore means that\n       *   watching complex objects will have adverse memory and performance implications.\n       * - This should not be used to watch for changes in objects that are (or contain)\n       *   [File](https://developer.mozilla.org/docs/Web/API/File) objects due to limitations with {@link angular.copy `angular.copy`}.\n       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.\n       *   This is achieved by rerunning the watchers until no changes are detected. The rerun\n       *   iteration limit is 10 to prevent an infinite loop deadlock.\n       *\n       *\n       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,\n       * you can register a `watchExpression` function with no `listener`. (Be prepared for\n       * multiple calls to your `watchExpression` because it will execute multiple times in a\n       * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.)\n       *\n       * After a watcher is registered with the scope, the `listener` fn is called asynchronously\n       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the\n       * watcher. In rare cases, this is undesirable because the listener is called when the result\n       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you\n       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the\n       * listener was called due to initialization.\n       *\n       *\n       *\n       * @example\n       * ```js\n           // let's assume that scope was dependency injected as the $rootScope\n           var scope = $rootScope;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n\n\n\n           // Using a function as a watchExpression\n           var food;\n           scope.foodCounter = 0;\n           expect(scope.foodCounter).toEqual(0);\n           scope.$watch(\n             // This function returns the value being watched. It is called for each turn of the $digest loop\n             function() { return food; },\n             // This is the change listener, called when the value returned from the above function changes\n             function(newValue, oldValue) {\n               if ( newValue !== oldValue ) {\n                 // Only increment the counter if the value changed\n                 scope.foodCounter = scope.foodCounter + 1;\n               }\n             }\n           );\n           // No digest has been run so the counter will be zero\n           expect(scope.foodCounter).toEqual(0);\n\n           // Run the digest but since food has not changed count will still be zero\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(0);\n\n           // Update food and run digest.  Now the counter will increment\n           food = 'cheeseburger';\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(1);\n\n       * ```\n       *\n       *\n       *\n       * @param {(function()|string)} watchExpression Expression that is evaluated on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers\n       *    a call to the `listener`.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(scope)`: called with current `scope` as a parameter.\n       * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value\n       *    of `watchExpression` changes.\n       *\n       *    - `newVal` contains the current value of the `watchExpression`\n       *    - `oldVal` contains the previous value of the `watchExpression`\n       *    - `scope` refers to the current scope\n       * @param {boolean=} [objectEquality=false] Compare for object equality using {@link angular.equals} instead of\n       *     comparing for reference equality.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) {\n        var get = $parse(watchExp);\n        var fn = isFunction(listener) ? listener : noop;\n\n        if (get.$$watchDelegate) {\n          return get.$$watchDelegate(this, fn, objectEquality, get, watchExp);\n        }\n        var scope = this,\n            array = scope.$$watchers,\n            watcher = {\n              fn: fn,\n              last: initWatchVal,\n              get: get,\n              exp: prettyPrintExpression || watchExp,\n              eq: !!objectEquality\n            };\n\n        lastDirtyWatch = null;\n\n        if (!array) {\n          array = scope.$$watchers = [];\n          array.$$digestWatchIndex = -1;\n        }\n        // we use unshift since we use a while loop in $digest for speed.\n        // the while loop reads in reverse order.\n        array.unshift(watcher);\n        array.$$digestWatchIndex++;\n        incrementWatchersCount(this, 1);\n\n        return function deregisterWatch() {\n          var index = arrayRemove(array, watcher);\n          if (index >= 0) {\n            incrementWatchersCount(scope, -1);\n            if (index < array.$$digestWatchIndex) {\n              array.$$digestWatchIndex--;\n            }\n          }\n          lastDirtyWatch = null;\n        };\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchGroup\n       * @kind function\n       *\n       * @description\n       * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`.\n       * If any one expression in the collection changes the `listener` is executed.\n       *\n       * - The items in the `watchExpressions` array are observed via the standard `$watch` operation. Their return\n       *   values are examined for changes on every call to `$digest`.\n       * - The `listener` is called whenever any expression in the `watchExpressions` array changes.\n       *\n       * @param {Array.<string|Function(scope)>} watchExpressions Array of expressions that will be individually\n       * watched using {@link ng.$rootScope.Scope#$watch $watch()}\n       *\n       * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any\n       *    expression in `watchExpressions` changes\n       *    The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    The `scope` refers to the current scope.\n       * @returns {function()} Returns a de-registration function for all listeners.\n       */\n      $watchGroup: function(watchExpressions, listener) {\n        var oldValues = new Array(watchExpressions.length);\n        var newValues = new Array(watchExpressions.length);\n        var deregisterFns = [];\n        var self = this;\n        var changeReactionScheduled = false;\n        var firstRun = true;\n\n        if (!watchExpressions.length) {\n          // No expressions means we call the listener ASAP\n          var shouldCall = true;\n          self.$evalAsync(function() {\n            if (shouldCall) listener(newValues, newValues, self);\n          });\n          return function deregisterWatchGroup() {\n            shouldCall = false;\n          };\n        }\n\n        if (watchExpressions.length === 1) {\n          // Special case size of one\n          return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) {\n            newValues[0] = value;\n            oldValues[0] = oldValue;\n            listener(newValues, (value === oldValue) ? newValues : oldValues, scope);\n          });\n        }\n\n        forEach(watchExpressions, function(expr, i) {\n          var unwatchFn = self.$watch(expr, function watchGroupSubAction(value) {\n            newValues[i] = value;\n            if (!changeReactionScheduled) {\n              changeReactionScheduled = true;\n              self.$evalAsync(watchGroupAction);\n            }\n          });\n          deregisterFns.push(unwatchFn);\n        });\n\n        function watchGroupAction() {\n          changeReactionScheduled = false;\n\n          try {\n            if (firstRun) {\n              firstRun = false;\n              listener(newValues, newValues, self);\n            } else {\n              listener(newValues, oldValues, self);\n            }\n          } finally {\n            for (var i = 0; i < watchExpressions.length; i++) {\n              oldValues[i] = newValues[i];\n            }\n          }\n        }\n\n        return function deregisterWatchGroup() {\n          while (deregisterFns.length) {\n            deregisterFns.shift()();\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchCollection\n       * @kind function\n       *\n       * @description\n       * Shallow watches the properties of an object and fires whenever any of the properties change\n       * (for arrays, this implies watching the array items; for object maps, this implies watching\n       * the properties). If a change is detected, the `listener` callback is fired.\n       *\n       * - The `obj` collection is observed via standard $watch operation and is examined on every\n       *   call to $digest() to see if any items have been added, removed, or moved.\n       * - The `listener` is called whenever anything within the `obj` has changed. Examples include\n       *   adding, removing, and moving items belonging to an object or array.\n       *\n       *\n       * @example\n       * ```js\n          $scope.names = ['igor', 'matias', 'misko', 'james'];\n          $scope.dataCount = 4;\n\n          $scope.$watchCollection('names', function(newNames, oldNames) {\n            $scope.dataCount = newNames.length;\n          });\n\n          expect($scope.dataCount).toEqual(4);\n          $scope.$digest();\n\n          //still at 4 ... no changes\n          expect($scope.dataCount).toEqual(4);\n\n          $scope.names.pop();\n          $scope.$digest();\n\n          //now there's been a change\n          expect($scope.dataCount).toEqual(3);\n       * ```\n       *\n       *\n       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The\n       *    expression value should evaluate to an object or an array which is observed on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the\n       *    collection will trigger a call to the `listener`.\n       *\n       * @param {function(newCollection, oldCollection, scope)} listener a callback function called\n       *    when a change is detected.\n       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression\n       *    - The `oldCollection` object is a copy of the former collection data.\n       *      Due to performance considerations, the`oldCollection` value is computed only if the\n       *      `listener` function declares two or more arguments.\n       *    - The `scope` argument refers to the current scope.\n       *\n       * @returns {function()} Returns a de-registration function for this listener. When the\n       *    de-registration function is executed, the internal watch operation is terminated.\n       */\n      $watchCollection: function(obj, listener) {\n        // Mark the interceptor as\n        // ... $$pure when literal since the instance will change when any input changes\n        $watchCollectionInterceptor.$$pure = $parse(obj).literal;\n        // ... $stateful when non-literal since we must read the state of the collection\n        $watchCollectionInterceptor.$stateful = !$watchCollectionInterceptor.$$pure;\n\n        var self = this;\n        // the current value, updated on each dirty-check run\n        var newValue;\n        // a shallow copy of the newValue from the last dirty-check run,\n        // updated to match newValue during dirty-check run\n        var oldValue;\n        // a shallow copy of the newValue from when the last change happened\n        var veryOldValue;\n        // only track veryOldValue if the listener is asking for it\n        var trackVeryOldValue = (listener.length > 1);\n        var changeDetected = 0;\n        var changeDetector = $parse(obj, $watchCollectionInterceptor);\n        var internalArray = [];\n        var internalObject = {};\n        var initRun = true;\n        var oldLength = 0;\n\n        function $watchCollectionInterceptor(_value) {\n          newValue = _value;\n          var newLength, key, bothNaN, newItem, oldItem;\n\n          // If the new value is undefined, then return undefined as the watch may be a one-time watch\n          if (isUndefined(newValue)) return;\n\n          if (!isObject(newValue)) { // if primitive\n            if (oldValue !== newValue) {\n              oldValue = newValue;\n              changeDetected++;\n            }\n          } else if (isArrayLike(newValue)) {\n            if (oldValue !== internalArray) {\n              // we are transitioning from something which was not an array into array.\n              oldValue = internalArray;\n              oldLength = oldValue.length = 0;\n              changeDetected++;\n            }\n\n            newLength = newValue.length;\n\n            if (oldLength !== newLength) {\n              // if lengths do not match we need to trigger change notification\n              changeDetected++;\n              oldValue.length = oldLength = newLength;\n            }\n            // copy the items to oldValue and look for changes.\n            for (var i = 0; i < newLength; i++) {\n              oldItem = oldValue[i];\n              newItem = newValue[i];\n\n              // eslint-disable-next-line no-self-compare\n              bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n              if (!bothNaN && (oldItem !== newItem)) {\n                changeDetected++;\n                oldValue[i] = newItem;\n              }\n            }\n          } else {\n            if (oldValue !== internalObject) {\n              // we are transitioning from something which was not an object into object.\n              oldValue = internalObject = {};\n              oldLength = 0;\n              changeDetected++;\n            }\n            // copy the items to oldValue and look for changes.\n            newLength = 0;\n            for (key in newValue) {\n              if (hasOwnProperty.call(newValue, key)) {\n                newLength++;\n                newItem = newValue[key];\n                oldItem = oldValue[key];\n\n                if (key in oldValue) {\n                  // eslint-disable-next-line no-self-compare\n                  bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n                  if (!bothNaN && (oldItem !== newItem)) {\n                    changeDetected++;\n                    oldValue[key] = newItem;\n                  }\n                } else {\n                  oldLength++;\n                  oldValue[key] = newItem;\n                  changeDetected++;\n                }\n              }\n            }\n            if (oldLength > newLength) {\n              // we used to have more keys, need to find them and destroy them.\n              changeDetected++;\n              for (key in oldValue) {\n                if (!hasOwnProperty.call(newValue, key)) {\n                  oldLength--;\n                  delete oldValue[key];\n                }\n              }\n            }\n          }\n          return changeDetected;\n        }\n\n        function $watchCollectionAction() {\n          if (initRun) {\n            initRun = false;\n            listener(newValue, newValue, self);\n          } else {\n            listener(newValue, veryOldValue, self);\n          }\n\n          // make a copy for the next time a collection is changed\n          if (trackVeryOldValue) {\n            if (!isObject(newValue)) {\n              //primitive\n              veryOldValue = newValue;\n            } else if (isArrayLike(newValue)) {\n              veryOldValue = new Array(newValue.length);\n              for (var i = 0; i < newValue.length; i++) {\n                veryOldValue[i] = newValue[i];\n              }\n            } else { // if object\n              veryOldValue = {};\n              for (var key in newValue) {\n                if (hasOwnProperty.call(newValue, key)) {\n                  veryOldValue[key] = newValue[key];\n                }\n              }\n            }\n          }\n        }\n\n        return this.$watch(changeDetector, $watchCollectionAction);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$digest\n       * @kind function\n       *\n       * @description\n       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and\n       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change\n       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}\n       * until no more listeners are firing. This means that it is possible to get into an infinite\n       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of\n       * iterations exceeds 10.\n       *\n       * Usually, you don't call `$digest()` directly in\n       * {@link ng.directive:ngController controllers} or in\n       * {@link ng.$compileProvider#directive directives}.\n       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within\n       * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`.\n       *\n       * If you want to be notified whenever `$digest()` is called,\n       * you can register a `watchExpression` function with\n       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.\n       *\n       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.\n       *\n       * @example\n       * ```js\n           var scope = ...;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n       * ```\n       *\n       */\n      $digest: function() {\n        var watch, value, last, fn, get,\n            watchers,\n            dirty, ttl = TTL,\n            next, current, target = asyncQueue.length ? $rootScope : this,\n            watchLog = [],\n            logIdx, asyncTask;\n\n        beginPhase('$digest');\n        // Check for changes to browser url that happened in sync before the call to $digest\n        $browser.$$checkUrlChange();\n\n        if (this === $rootScope && applyAsyncId !== null) {\n          // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then\n          // cancel the scheduled $apply and flush the queue of expressions to be evaluated.\n          $browser.defer.cancel(applyAsyncId);\n          flushApplyAsync();\n        }\n\n        lastDirtyWatch = null;\n\n        do { // \"while dirty\" loop\n          dirty = false;\n          current = target;\n\n          // It's safe for asyncQueuePosition to be a local variable here because this loop can't\n          // be reentered recursively. Calling $digest from a function passed to $evalAsync would\n          // lead to a '$digest already in progress' error.\n          for (var asyncQueuePosition = 0; asyncQueuePosition < asyncQueue.length; asyncQueuePosition++) {\n            try {\n              asyncTask = asyncQueue[asyncQueuePosition];\n              fn = asyncTask.fn;\n              fn(asyncTask.scope, asyncTask.locals);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n            lastDirtyWatch = null;\n          }\n          asyncQueue.length = 0;\n\n          traverseScopesLoop:\n          do { // \"traverse the scopes\" loop\n            if ((watchers = !current.$$suspended && current.$$watchers)) {\n              // process our watches\n              watchers.$$digestWatchIndex = watchers.length;\n              while (watchers.$$digestWatchIndex--) {\n                try {\n                  watch = watchers[watchers.$$digestWatchIndex];\n                  // Most common watches are on primitives, in which case we can short\n                  // circuit it with === operator, only when === fails do we use .equals\n                  if (watch) {\n                    get = watch.get;\n                    if ((value = get(current)) !== (last = watch.last) &&\n                        !(watch.eq\n                            ? equals(value, last)\n                            : (isNumberNaN(value) && isNumberNaN(last)))) {\n                      dirty = true;\n                      lastDirtyWatch = watch;\n                      watch.last = watch.eq ? copy(value, null) : value;\n                      fn = watch.fn;\n                      fn(value, ((last === initWatchVal) ? value : last), current);\n                      if (ttl < 5) {\n                        logIdx = 4 - ttl;\n                        if (!watchLog[logIdx]) watchLog[logIdx] = [];\n                        watchLog[logIdx].push({\n                          msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp,\n                          newVal: value,\n                          oldVal: last\n                        });\n                      }\n                    } else if (watch === lastDirtyWatch) {\n                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers\n                      // have already been tested.\n                      dirty = false;\n                      break traverseScopesLoop;\n                    }\n                  }\n                } catch (e) {\n                  $exceptionHandler(e);\n                }\n              }\n            }\n\n            // Insanity Warning: scope depth-first traversal\n            // yes, this code is a bit crazy, but it works and we have tests to prove it!\n            // this piece should be kept in sync with the traversal in $broadcast\n            // (though it differs due to having the extra check for $$suspended and does not\n            // check $$listenerCount)\n            if (!(next = ((!current.$$suspended && current.$$watchersCount && current.$$childHead) ||\n                (current !== target && current.$$nextSibling)))) {\n              while (current !== target && !(next = current.$$nextSibling)) {\n                current = current.$parent;\n              }\n            }\n          } while ((current = next));\n\n          // `break traverseScopesLoop;` takes us to here\n\n          if ((dirty || asyncQueue.length) && !(ttl--)) {\n            clearPhase();\n            throw $rootScopeMinErr('infdig',\n                '{0} $digest() iterations reached. Aborting!\\n' +\n                'Watchers fired in the last 5 iterations: {1}',\n                TTL, watchLog);\n          }\n\n        } while (dirty || asyncQueue.length);\n\n        clearPhase();\n\n        // postDigestQueuePosition isn't local here because this loop can be reentered recursively.\n        while (postDigestQueuePosition < postDigestQueue.length) {\n          try {\n            postDigestQueue[postDigestQueuePosition++]();\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        }\n        postDigestQueue.length = postDigestQueuePosition = 0;\n\n        // Check for changes to browser url that happened during the $digest\n        // (for which no event is fired; e.g. via `history.pushState()`)\n        $browser.$$checkUrlChange();\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$suspend\n       * @kind function\n       *\n       * @description\n       * Suspend watchers of this scope subtree so that they will not be invoked during digest.\n       *\n       * This can be used to optimize your application when you know that running those watchers\n       * is redundant.\n       *\n       * **Warning**\n       *\n       * Suspending scopes from the digest cycle can have unwanted and difficult to debug results.\n       * Only use this approach if you are confident that you know what you are doing and have\n       * ample tests to ensure that bindings get updated as you expect.\n       *\n       * Some of the things to consider are:\n       *\n       * * Any external event on a directive/component will not trigger a digest while the hosting\n       *   scope is suspended - even if the event handler calls `$apply()` or `$rootScope.$digest()`.\n       * * Transcluded content exists on a scope that inherits from outside a directive but exists\n       *   as a child of the directive's containing scope. If the containing scope is suspended the\n       *   transcluded scope will also be suspended, even if the scope from which the transcluded\n       *   scope inherits is not suspended.\n       * * Multiple directives trying to manage the suspended status of a scope can confuse each other:\n       *    * A call to `$suspend()` on an already suspended scope is a no-op.\n       *    * A call to `$resume()` on a non-suspended scope is a no-op.\n       *    * If two directives suspend a scope, then one of them resumes the scope, the scope will no\n       *      longer be suspended. This could result in the other directive believing a scope to be\n       *      suspended when it is not.\n       * * If a parent scope is suspended then all its descendants will be also excluded from future\n       *   digests whether or not they have been suspended themselves. Note that this also applies to\n       *   isolate child scopes.\n       * * Calling `$digest()` directly on a descendant of a suspended scope will still run the watchers\n       *   for that scope and its descendants. When digesting we only check whether the current scope is\n       *   locally suspended, rather than checking whether it has a suspended ancestor.\n       * * Calling `$resume()` on a scope that has a suspended ancestor will not cause the scope to be\n       *   included in future digests until all its ancestors have been resumed.\n       * * Resolved promises, e.g. from explicit `$q` deferreds and `$http` calls, trigger `$apply()`\n       *   against the `$rootScope` and so will still trigger a global digest even if the promise was\n       *   initiated by a component that lives on a suspended scope.\n       */\n      $suspend: function() {\n        this.$$suspended = true;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$isSuspended\n       * @kind function\n       *\n       * @description\n       * Call this method to determine if this scope has been explicitly suspended. It will not\n       * tell you whether an ancestor has been suspended.\n       * To determine if this scope will be excluded from a digest triggered at the $rootScope,\n       * for example, you must check all its ancestors:\n       *\n       * ```\n       * function isExcludedFromDigest(scope) {\n       *   while(scope) {\n       *     if (scope.$isSuspended()) return true;\n       *     scope = scope.$parent;\n       *   }\n       *   return false;\n       * ```\n       *\n       * Be aware that a scope may not be included in digests if it has a suspended ancestor,\n       * even if `$isSuspended()` returns false.\n       *\n       * @returns true if the current scope has been suspended.\n       */\n      $isSuspended: function() {\n        return this.$$suspended;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$resume\n       * @kind function\n       *\n       * @description\n       * Resume watchers of this scope subtree in case it was suspended.\n       *\n       * See {@link $rootScope.Scope#$suspend} for information about the dangers of using this approach.\n       */\n      $resume: function() {\n        this.$$suspended = false;\n      },\n\n      /**\n       * @ngdoc event\n       * @name $rootScope.Scope#$destroy\n       * @eventType broadcast on scope being destroyed\n       *\n       * @description\n       * Broadcasted when a scope and its children are being destroyed.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$destroy\n       * @kind function\n       *\n       * @description\n       * Removes the current scope (and all of its children) from the parent scope. Removal implies\n       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer\n       * propagate to the current scope and its children. Removal also implies that the current\n       * scope is eligible for garbage collection.\n       *\n       * The `$destroy()` is usually used by directives such as\n       * {@link ng.directive:ngRepeat ngRepeat} for managing the\n       * unrolling of the loop.\n       *\n       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.\n       * Application code can register a `$destroy` event handler that will give it a chance to\n       * perform any necessary cleanup.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n      $destroy: function() {\n        // We can't destroy a scope that has been already destroyed.\n        if (this.$$destroyed) return;\n        var parent = this.$parent;\n\n        this.$broadcast('$destroy');\n        this.$$destroyed = true;\n\n        if (this === $rootScope) {\n          //Remove handlers attached to window when $rootScope is removed\n          $browser.$$applicationDestroyed();\n        }\n\n        incrementWatchersCount(this, -this.$$watchersCount);\n        for (var eventName in this.$$listenerCount) {\n          decrementListenerCount(this, this.$$listenerCount[eventName], eventName);\n        }\n\n        // sever all the references to parent scopes (after this cleanup, the current scope should\n        // not be retained by any of our references and should be eligible for garbage collection)\n        if (parent && parent.$$childHead === this) parent.$$childHead = this.$$nextSibling;\n        if (parent && parent.$$childTail === this) parent.$$childTail = this.$$prevSibling;\n        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;\n        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;\n\n        // Disable listeners, watchers and apply/digest methods\n        this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop;\n        this.$on = this.$watch = this.$watchGroup = function() { return noop; };\n        this.$$listeners = {};\n\n        // Disconnect the next sibling to prevent `cleanUpScope` destroying those too\n        this.$$nextSibling = null;\n        cleanUpScope(this);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$eval\n       * @kind function\n       *\n       * @description\n       * Executes the `expression` on the current scope and returns the result. Any exceptions in\n       * the expression are propagated (uncaught). This is useful when evaluating AngularJS\n       * expressions.\n       *\n       * @example\n       * ```js\n           var scope = ng.$rootScope.Scope();\n           scope.a = 1;\n           scope.b = 2;\n\n           expect(scope.$eval('a+b')).toEqual(3);\n           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);\n       * ```\n       *\n       * @param {(string|function())=} expression An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       * @returns {*} The result of evaluating the expression.\n       */\n      $eval: function(expr, locals) {\n        return $parse(expr)(this, locals);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$evalAsync\n       * @kind function\n       *\n       * @description\n       * Executes the expression on the current scope at a later point in time.\n       *\n       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only\n       * that:\n       *\n       *   - it will execute after the function that scheduled the evaluation (preferably before DOM\n       *     rendering).\n       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after\n       *     `expression` execution.\n       *\n       * Any exceptions from the execution of the expression are forwarded to the\n       * {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle\n       * will be scheduled. However, it is encouraged to always call code that changes the model\n       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.\n       *\n       * @param {(string|function())=} expression An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       */\n      $evalAsync: function(expr, locals) {\n        // if we are outside of an $digest loop and this is the first time we are scheduling async\n        // task also schedule async auto-flush\n        if (!$rootScope.$$phase && !asyncQueue.length) {\n          $browser.defer(function() {\n            if (asyncQueue.length) {\n              $rootScope.$digest();\n            }\n          }, null, '$evalAsync');\n        }\n\n        asyncQueue.push({scope: this, fn: $parse(expr), locals: locals});\n      },\n\n      $$postDigest: function(fn) {\n        postDigestQueue.push(fn);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$apply\n       * @kind function\n       *\n       * @description\n       * `$apply()` is used to execute an expression in AngularJS from outside of the AngularJS\n       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).\n       * Because we are calling into the AngularJS framework we need to perform proper scope life\n       * cycle of {@link ng.$exceptionHandler exception handling},\n       * {@link ng.$rootScope.Scope#$digest executing watches}.\n       *\n       * **Life cycle: Pseudo-Code of `$apply()`**\n       *\n       * ```js\n           function $apply(expr) {\n             try {\n               return $eval(expr);\n             } catch (e) {\n               $exceptionHandler(e);\n             } finally {\n               $root.$digest();\n             }\n           }\n       * ```\n       *\n       *\n       * Scope's `$apply()` method transitions through the following stages:\n       *\n       * 1. The {@link guide/expression expression} is executed using the\n       *    {@link ng.$rootScope.Scope#$eval $eval()} method.\n       * 2. Any exceptions from the execution of the expression are forwarded to the\n       *    {@link ng.$exceptionHandler $exceptionHandler} service.\n       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the\n       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.\n       *\n       *\n       * @param {(string|function())=} exp An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       *\n       * @returns {*} The result of evaluating the expression.\n       */\n      $apply: function(expr) {\n        try {\n          beginPhase('$apply');\n          try {\n            return this.$eval(expr);\n          } finally {\n            clearPhase();\n          }\n        } catch (e) {\n          $exceptionHandler(e);\n        } finally {\n          try {\n            $rootScope.$digest();\n          } catch (e) {\n            $exceptionHandler(e);\n            // eslint-disable-next-line no-unsafe-finally\n            throw e;\n          }\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$applyAsync\n       * @kind function\n       *\n       * @description\n       * Schedule the invocation of $apply to occur at a later time. The actual time difference\n       * varies across browsers, but is typically around ~10 milliseconds.\n       *\n       * This can be used to queue up multiple expressions which need to be evaluated in the same\n       * digest.\n       *\n       * @param {(string|function())=} exp An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       */\n      $applyAsync: function(expr) {\n        var scope = this;\n        if (expr) {\n          applyAsyncQueue.push($applyAsyncExpression);\n        }\n        expr = $parse(expr);\n        scheduleApplyAsync();\n\n        function $applyAsyncExpression() {\n          scope.$eval(expr);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$on\n       * @kind function\n       *\n       * @description\n       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for\n       * discussion of event life cycle.\n       *\n       * The event listener function format is: `function(event, args...)`. The `event` object\n       * passed into the listener has the following attributes:\n       *\n       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or\n       *     `$broadcast`-ed.\n       *   - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the\n       *     event propagates through the scope hierarchy, this property is set to null.\n       *   - `name` - `{string}`: name of the event.\n       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel\n       *     further event propagation (available only for events that were `$emit`-ed).\n       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag\n       *     to true.\n       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.\n       *\n       * @param {string} name Event name to listen on.\n       * @param {function(event, ...args)} listener Function to call when the event is emitted.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $on: function(name, listener) {\n        var namedListeners = this.$$listeners[name];\n        if (!namedListeners) {\n          this.$$listeners[name] = namedListeners = [];\n        }\n        namedListeners.push(listener);\n\n        var current = this;\n        do {\n          if (!current.$$listenerCount[name]) {\n            current.$$listenerCount[name] = 0;\n          }\n          current.$$listenerCount[name]++;\n        } while ((current = current.$parent));\n\n        var self = this;\n        return function() {\n          var indexOfListener = namedListeners.indexOf(listener);\n          if (indexOfListener !== -1) {\n            // Use delete in the hope of the browser deallocating the memory for the array entry,\n            // while not shifting the array indexes of other listeners.\n            // See issue https://github.com/angular/angular.js/issues/16135\n            delete namedListeners[indexOfListener];\n            decrementListenerCount(self, 1, name);\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$emit\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` upwards through the scope hierarchy notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$emit` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event traverses upwards toward the root scope and calls all\n       * registered listeners along the way. The event will stop propagating if one of the listeners\n       * cancels it.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to emit.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).\n       */\n      $emit: function(name, args) {\n        var empty = [],\n            namedListeners,\n            scope = this,\n            stopPropagation = false,\n            event = {\n              name: name,\n              targetScope: scope,\n              stopPropagation: function() {stopPropagation = true;},\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            i, length;\n\n        do {\n          namedListeners = scope.$$listeners[name] || empty;\n          event.currentScope = scope;\n          for (i = 0, length = namedListeners.length; i < length; i++) {\n\n            // if listeners were deregistered, defragment the array\n            if (!namedListeners[i]) {\n              namedListeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n            try {\n              //allow all listeners attached to the current scope to run\n              namedListeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          //if any listener on the current scope stops propagation, prevent bubbling\n          if (stopPropagation) {\n            break;\n          }\n          //traverse upwards\n          scope = scope.$parent;\n        } while (scope);\n\n        event.currentScope = null;\n\n        return event;\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$broadcast\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$broadcast` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current\n       * scope and calls all registered listeners along the way. The event cannot be canceled.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to broadcast.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}\n       */\n      $broadcast: function(name, args) {\n        var target = this,\n            current = target,\n            next = target,\n            event = {\n              name: name,\n              targetScope: target,\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            };\n\n        if (!target.$$listenerCount[name]) return event;\n\n        var listenerArgs = concat([event], arguments, 1),\n            listeners, i, length;\n\n        //down while you can, then up and next sibling or up and next sibling until back at root\n        while ((current = next)) {\n          event.currentScope = current;\n          listeners = current.$$listeners[name] || [];\n          for (i = 0, length = listeners.length; i < length; i++) {\n            // if listeners were deregistered, defragment the array\n            if (!listeners[i]) {\n              listeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n\n            try {\n              listeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n\n          // Insanity Warning: scope depth-first traversal\n          // yes, this code is a bit crazy, but it works and we have tests to prove it!\n          // this piece should be kept in sync with the traversal in $digest\n          // (though it differs due to having the extra check for $$listenerCount and\n          // does not check $$suspended)\n          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||\n              (current !== target && current.$$nextSibling)))) {\n            while (current !== target && !(next = current.$$nextSibling)) {\n              current = current.$parent;\n            }\n          }\n        }\n\n        event.currentScope = null;\n        return event;\n      }\n    };\n\n    var $rootScope = new Scope();\n\n    //The internal queues. Expose them on the $rootScope for debugging/testing purposes.\n    var asyncQueue = $rootScope.$$asyncQueue = [];\n    var postDigestQueue = $rootScope.$$postDigestQueue = [];\n    var applyAsyncQueue = $rootScope.$$applyAsyncQueue = [];\n\n    var postDigestQueuePosition = 0;\n\n    return $rootScope;\n\n\n    function beginPhase(phase) {\n      if ($rootScope.$$phase) {\n        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);\n      }\n\n      $rootScope.$$phase = phase;\n    }\n\n    function clearPhase() {\n      $rootScope.$$phase = null;\n    }\n\n    function incrementWatchersCount(current, count) {\n      do {\n        current.$$watchersCount += count;\n      } while ((current = current.$parent));\n    }\n\n    function decrementListenerCount(current, count, name) {\n      do {\n        current.$$listenerCount[name] -= count;\n\n        if (current.$$listenerCount[name] === 0) {\n          delete current.$$listenerCount[name];\n        }\n      } while ((current = current.$parent));\n    }\n\n    /**\n     * function used as an initial value for watchers.\n     * because it's unique we can easily tell it apart from other values\n     */\n    function initWatchVal() {}\n\n    function flushApplyAsync() {\n      while (applyAsyncQueue.length) {\n        try {\n          applyAsyncQueue.shift()();\n        } catch (e) {\n          $exceptionHandler(e);\n        }\n      }\n      applyAsyncId = null;\n    }\n\n    function scheduleApplyAsync() {\n      if (applyAsyncId === null) {\n        applyAsyncId = $browser.defer(function() {\n          $rootScope.$apply(flushApplyAsync);\n        }, null, '$applyAsync');\n      }\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $rootElement\n *\n * @description\n * The root element of AngularJS application. This is either the element where {@link\n * ng.directive:ngApp ngApp} was declared or the element passed into\n * {@link angular.bootstrap}. The element represents the root element of application. It is also the\n * location where the application's {@link auto.$injector $injector} service gets\n * published, and can be retrieved using `$rootElement.injector()`.\n */\n\n\n// the implementation is in angular.bootstrap\n\n/**\n * @this\n * @description\n * Private service to sanitize uris for links and images. Used by $compile and $sanitize.\n */\nfunction $$SanitizeUriProvider() {\n\n  var aHrefSanitizationWhitelist = /^\\s*(https?|s?ftp|mailto|tel|file):/,\n    imgSrcSanitizationWhitelist = /^\\s*((https?|ftp|file|blob):|data:image\\/)/;\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via HTML anchor links.\n   *\n   * Any url due to be assigned to an `a[href]` attribute via interpolation is marked as requiring\n   * the $sce.URL security context. When interpolation occurs a call is made to `$sce.trustAsUrl(url)`\n   * which in turn may call `$$sanitizeUri(url, isMedia)` to sanitize the potentially malicious URL.\n   *\n   * If the URL matches the `aHrefSanitizationWhitelist` regular expression, it is returned unchanged.\n   *\n   * If there is no match the URL is returned prefixed with `'unsafe:'` to ensure that when it is written\n   * to the DOM it is inactive and potentially malicious code will not be executed.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      aHrefSanitizationWhitelist = regexp;\n      return this;\n    }\n    return aHrefSanitizationWhitelist;\n  };\n\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for whitelisting of safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via HTML image src links.\n   *\n   * Any URL due to be assigned to an `img[src]` attribute via interpolation is marked as requiring\n   * the $sce.MEDIA_URL security context. When interpolation occurs a call is made to\n   * `$sce.trustAsMediaUrl(url)` which in turn may call `$$sanitizeUri(url, isMedia)` to sanitize\n   * the potentially malicious URL.\n   *\n   * If the URL matches the `aImgSanitizationWhitelist` regular expression, it is returned unchanged.\n   *\n   * If there is no match the URL is returned prefixed with `'unsafe:'` to ensure that when it is written\n   * to the DOM it is inactive and potentially malicious code will not be executed.\n   *\n   * @param {RegExp=} regexp New regexp to whitelist urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationWhitelist = function(regexp) {\n    if (isDefined(regexp)) {\n      imgSrcSanitizationWhitelist = regexp;\n      return this;\n    }\n    return imgSrcSanitizationWhitelist;\n  };\n\n  this.$get = function() {\n    return function sanitizeUri(uri, isMediaUrl) {\n      // if (!uri) return uri;\n      var regex = isMediaUrl ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;\n      var normalizedVal = urlResolve(uri && uri.trim()).href;\n      if (normalizedVal !== '' && !normalizedVal.match(regex)) {\n        return 'unsafe:' + normalizedVal;\n      }\n      return uri;\n    };\n  };\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* exported $SceProvider, $SceDelegateProvider */\n\nvar $sceMinErr = minErr('$sce');\n\nvar SCE_CONTEXTS = {\n  // HTML is used when there's HTML rendered (e.g. ng-bind-html, iframe srcdoc binding).\n  HTML: 'html',\n\n  // Style statements or stylesheets. Currently unused in AngularJS.\n  CSS: 'css',\n\n  // An URL used in a context where it refers to the source of media, which are not expected to be run\n  // as scripts, such as an image, audio, video, etc.\n  MEDIA_URL: 'mediaUrl',\n\n  // An URL used in a context where it does not refer to a resource that loads code.\n  // A value that can be trusted as a URL can also trusted as a MEDIA_URL.\n  URL: 'url',\n\n  // RESOURCE_URL is a subtype of URL used where the referred-to resource could be interpreted as\n  // code. (e.g. ng-include, script src binding, templateUrl)\n  // A value that can be trusted as a RESOURCE_URL, can also trusted as a URL and a MEDIA_URL.\n  RESOURCE_URL: 'resourceUrl',\n\n  // Script. Currently unused in AngularJS.\n  JS: 'js'\n};\n\n// Helper functions follow.\n\nvar UNDERSCORE_LOWERCASE_REGEXP = /_([a-z])/g;\n\nfunction snakeToCamel(name) {\n  return name\n    .replace(UNDERSCORE_LOWERCASE_REGEXP, fnCamelCaseReplace);\n}\n\nfunction adjustMatcher(matcher) {\n  if (matcher === 'self') {\n    return matcher;\n  } else if (isString(matcher)) {\n    // Strings match exactly except for 2 wildcards - '*' and '**'.\n    // '*' matches any character except those from the set ':/.?&'.\n    // '**' matches any character (like .* in a RegExp).\n    // More than 2 *'s raises an error as it's ill defined.\n    if (matcher.indexOf('***') > -1) {\n      throw $sceMinErr('iwcard',\n          'Illegal sequence *** in string matcher.  String: {0}', matcher);\n    }\n    matcher = escapeForRegexp(matcher).\n                  replace(/\\\\\\*\\\\\\*/g, '.*').\n                  replace(/\\\\\\*/g, '[^:/.?&;]*');\n    return new RegExp('^' + matcher + '$');\n  } else if (isRegExp(matcher)) {\n    // The only other type of matcher allowed is a Regexp.\n    // Match entire URL / disallow partial matches.\n    // Flags are reset (i.e. no global, ignoreCase or multiline)\n    return new RegExp('^' + matcher.source + '$');\n  } else {\n    throw $sceMinErr('imatcher',\n        'Matchers may only be \"self\", string patterns or RegExp objects');\n  }\n}\n\n\nfunction adjustMatchers(matchers) {\n  var adjustedMatchers = [];\n  if (isDefined(matchers)) {\n    forEach(matchers, function(matcher) {\n      adjustedMatchers.push(adjustMatcher(matcher));\n    });\n  }\n  return adjustedMatchers;\n}\n\n\n/**\n * @ngdoc service\n * @name $sceDelegate\n * @kind function\n *\n * @description\n *\n * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict\n * Contextual Escaping (SCE)} services to AngularJS.\n *\n * For an overview of this service and the functionnality it provides in AngularJS, see the main\n * page for {@link ng.$sce SCE}. The current page is targeted for developers who need to alter how\n * SCE works in their application, which shouldn't be needed in most cases.\n *\n * <div class=\"alert alert-danger\">\n * AngularJS strongly relies on contextual escaping for the security of bindings: disabling or\n * modifying this might cause cross site scripting (XSS) vulnerabilities. For libraries owners,\n * changes to this service will also influence users, so be extra careful and document your changes.\n * </div>\n *\n * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of\n * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is\n * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to\n * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things\n * work because `$sce` delegates to `$sceDelegate` for these operations.\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.\n *\n * The default instance of `$sceDelegate` should work out of the box with little pain.  While you\n * can override it completely to change the behavior of `$sce`, the common case would\n * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting\n * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as\n * templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist\n * $sceDelegateProvider.resourceUrlWhitelist} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}\n */\n\n/**\n * @ngdoc provider\n * @name $sceDelegateProvider\n * @this\n *\n * @description\n *\n * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate\n * $sceDelegate service}, used as a delegate for {@link ng.$sce Strict Contextual Escaping (SCE)}.\n *\n * The `$sceDelegateProvider` allows one to get/set the whitelists and blacklists used to ensure\n * that the URLs used for sourcing AngularJS templates and other script-running URLs are safe (all\n * places that use the `$sce.RESOURCE_URL` context). See\n * {@link ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist}\n * and\n * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist},\n *\n * For the general details about this service in AngularJS, read the main page for {@link ng.$sce\n * Strict Contextual Escaping (SCE)}.\n *\n * **Example**:  Consider the following case. <a name=\"example\"></a>\n *\n * - your app is hosted at url `http://myapp.example.com/`\n * - but some of your templates are hosted on other domains you control such as\n *   `http://srv01.assets.example.com/`, `http://srv02.assets.example.com/`, etc.\n * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.\n *\n * Here is what a secure configuration for this scenario might look like:\n *\n * ```\n *  angular.module('myApp', []).config(function($sceDelegateProvider) {\n *    $sceDelegateProvider.resourceUrlWhitelist([\n *      // Allow same origin resource loads.\n *      'self',\n *      // Allow loading from our assets domain.  Notice the difference between * and **.\n *      'http://srv*.assets.example.com/**'\n *    ]);\n *\n *    // The blacklist overrides the whitelist so the open redirect here is blocked.\n *    $sceDelegateProvider.resourceUrlBlacklist([\n *      'http://myapp.example.com/clickThru**'\n *    ]);\n *  });\n * ```\n * Note that an empty whitelist will block every resource URL from being loaded, and will require\n * you to manually mark each one as trusted with `$sce.trustAsResourceUrl`. However, templates\n * requested by {@link ng.$templateRequest $templateRequest} that are present in\n * {@link ng.$templateCache $templateCache} will not go through this check. If you have a mechanism\n * to populate your templates in that cache at config time, then it is a good idea to remove 'self'\n * from that whitelist. This helps to mitigate the security impact of certain types of issues, like\n * for instance attacker-controlled `ng-includes`.\n */\n\nfunction $SceDelegateProvider() {\n  this.SCE_CONTEXTS = SCE_CONTEXTS;\n\n  // Resource URLs can also be trusted by policy.\n  var resourceUrlWhitelist = ['self'],\n      resourceUrlBlacklist = [];\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlWhitelist\n   * @kind function\n   *\n   * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.\n   *\n   * @return {Array} The currently set whitelist array.\n   *\n   * @description\n   * Sets/Gets the whitelist of trusted resource URLs.\n   *\n   * The **default value** when no whitelist has been explicitly set is `['self']` allowing only\n   * same origin resource requests.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** the default whitelist of 'self' is not recommended if your app shares its origin\n   * with other apps! It is a good idea to limit it to only your application's directory.\n   * </div>\n   */\n  this.resourceUrlWhitelist = function(value) {\n    if (arguments.length) {\n      resourceUrlWhitelist = adjustMatchers(value);\n    }\n    return resourceUrlWhitelist;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlBlacklist\n   * @kind function\n   *\n   * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value\n   *     provided.  This must be an array or null.  A snapshot of this array is used so further\n   *     changes to the array are ignored.</p><p>\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.</p><p>\n   *     The typical usage for the blacklist is to **block\n   *     [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as\n   *     these would otherwise be trusted but actually return content from the redirected domain.\n   *     </p><p>\n   *     Finally, **the blacklist overrides the whitelist** and has the final say.\n   *\n   * @return {Array} The currently set blacklist array.\n   *\n   * @description\n   * Sets/Gets the blacklist of trusted resource URLs.\n   *\n   * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there\n   * is no blacklist.)\n   */\n\n  this.resourceUrlBlacklist = function(value) {\n    if (arguments.length) {\n      resourceUrlBlacklist = adjustMatchers(value);\n    }\n    return resourceUrlBlacklist;\n  };\n\n  this.$get = ['$injector', '$$sanitizeUri', function($injector, $$sanitizeUri) {\n\n    var htmlSanitizer = function htmlSanitizer(html) {\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    };\n\n    if ($injector.has('$sanitize')) {\n      htmlSanitizer = $injector.get('$sanitize');\n    }\n\n\n    function matchUrl(matcher, parsedUrl) {\n      if (matcher === 'self') {\n        return urlIsSameOrigin(parsedUrl) || urlIsSameOriginAsBaseUrl(parsedUrl);\n      } else {\n        // definitely a regex.  See adjustMatchers()\n        return !!matcher.exec(parsedUrl.href);\n      }\n    }\n\n    function isResourceUrlAllowedByPolicy(url) {\n      var parsedUrl = urlResolve(url.toString());\n      var i, n, allowed = false;\n      // Ensure that at least one item from the whitelist allows this url.\n      for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {\n        if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {\n          allowed = true;\n          break;\n        }\n      }\n      if (allowed) {\n        // Ensure that no item from the blacklist blocked this url.\n        for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {\n          if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {\n            allowed = false;\n            break;\n          }\n        }\n      }\n      return allowed;\n    }\n\n    function generateHolderType(Base) {\n      var holderType = function TrustedValueHolderType(trustedValue) {\n        this.$$unwrapTrustedValue = function() {\n          return trustedValue;\n        };\n      };\n      if (Base) {\n        holderType.prototype = new Base();\n      }\n      holderType.prototype.valueOf = function sceValueOf() {\n        return this.$$unwrapTrustedValue();\n      };\n      holderType.prototype.toString = function sceToString() {\n        return this.$$unwrapTrustedValue().toString();\n      };\n      return holderType;\n    }\n\n    var trustedValueHolderBase = generateHolderType(),\n        byType = {};\n\n    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.MEDIA_URL] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.URL] = generateHolderType(byType[SCE_CONTEXTS.MEDIA_URL]);\n    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#trustAs\n     *\n     * @description\n     * Returns a trusted representation of the parameter for the specified context. This trusted\n     * object will later on be used as-is, without any security check, by bindings or directives\n     * that require this security context.\n     * For instance, marking a string as trusted for the `$sce.HTML` context will entirely bypass\n     * the potential `$sanitize` call in corresponding `$sce.HTML` bindings or directives, such as\n     * `ng-bind-html`. Note that in most cases you won't need to call this function: if you have the\n     * sanitizer loaded, passing the value itself will render all the HTML that does not pose a\n     * security risk.\n     *\n     * See {@link ng.$sceDelegate#getTrusted getTrusted} for the function that will consume those\n     * trusted values, and {@link ng.$sce $sce} for general documentation about strict contextual\n     * escaping.\n     *\n     * @param {string} type The context in which this value is safe for use, e.g. `$sce.URL`,\n     *     `$sce.RESOURCE_URL`, `$sce.HTML`, `$sce.JS` or `$sce.CSS`.\n     *\n     * @param {*} value The value that should be considered trusted.\n     * @return {*} A trusted representation of value, that can be used in the given context.\n     */\n    function trustAs(type, trustedValue) {\n      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (!Constructor) {\n        throw $sceMinErr('icontext',\n            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',\n            type, trustedValue);\n      }\n      if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') {\n        return trustedValue;\n      }\n      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting\n      // mutable objects, we ensure here that the value passed in is actually a string.\n      if (typeof trustedValue !== 'string') {\n        throw $sceMinErr('itype',\n            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',\n            type);\n      }\n      return new Constructor(trustedValue);\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#valueOf\n     *\n     * @description\n     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.\n     *\n     * If the passed parameter is not a value that had been returned by {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, it must be returned as-is.\n     *\n     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}\n     *     call or anything else.\n     * @return {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns\n     *     `value` unchanged.\n     */\n    function valueOf(maybeTrusted) {\n      if (maybeTrusted instanceof trustedValueHolderBase) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      } else {\n        return maybeTrusted;\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#getTrusted\n     *\n     * @description\n     * Given an object and a security context in which to assign it, returns a value that's safe to\n     * use in this context, which was represented by the parameter. To do so, this function either\n     * unwraps the safe type it has been given (for instance, a {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`} result), or it might try to sanitize the value given, depending on\n     * the context and sanitizer availablility.\n     *\n     * The contexts that can be sanitized are $sce.MEDIA_URL, $sce.URL and $sce.HTML. The first two are available\n     * by default, and the third one relies on the `$sanitize` service (which may be loaded through\n     * the `ngSanitize` module). Furthermore, for $sce.RESOURCE_URL context, a plain string may be\n     * accepted if the resource url policy defined by {@link ng.$sceDelegateProvider#resourceUrlWhitelist\n     * `$sceDelegateProvider.resourceUrlWhitelist`} and {@link ng.$sceDelegateProvider#resourceUrlBlacklist\n     * `$sceDelegateProvider.resourceUrlBlacklist`} accepts that resource.\n     *\n     * This function will throw if the safe type isn't appropriate for this context, or if the\n     * value given cannot be accepted in the context (which might be caused by sanitization not\n     * being available, or the value not being recognized as safe).\n     *\n     * <div class=\"alert alert-danger\">\n     * Disabling auto-escaping is extremely dangerous, it usually creates a Cross Site Scripting\n     * (XSS) vulnerability in your application.\n     * </div>\n     *\n     * @param {string} type The context in which this value is to be used (such as `$sce.HTML`).\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} call, or anything else (which will not be considered trusted.)\n     * @return {*} A version of the value that's safe to use in the given context, or throws an\n     *     exception if this is impossible.\n     */\n    function getTrusted(type, maybeTrusted) {\n      if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') {\n        return maybeTrusted;\n      }\n      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      // If maybeTrusted is a trusted class instance or subclass instance, then unwrap and return\n      // as-is.\n      if (constructor && maybeTrusted instanceof constructor) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      }\n\n      // If maybeTrusted is a trusted class instance but not of the correct trusted type\n      // then unwrap it and allow it to pass through to the rest of the checks\n      if (isFunction(maybeTrusted.$$unwrapTrustedValue)) {\n        maybeTrusted = maybeTrusted.$$unwrapTrustedValue();\n      }\n\n      // If we get here, then we will either sanitize the value or throw an exception.\n      if (type === SCE_CONTEXTS.MEDIA_URL || type === SCE_CONTEXTS.URL) {\n        // we attempt to sanitize non-resource URLs\n        return $$sanitizeUri(maybeTrusted.toString(), type === SCE_CONTEXTS.MEDIA_URL);\n      } else if (type === SCE_CONTEXTS.RESOURCE_URL) {\n        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {\n          return maybeTrusted;\n        } else {\n          throw $sceMinErr('insecurl',\n              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',\n              maybeTrusted.toString());\n        }\n      } else if (type === SCE_CONTEXTS.HTML) {\n        // htmlSanitizer throws its own error when no sanitizer is available.\n        return htmlSanitizer(maybeTrusted);\n      }\n      // Default error when the $sce service has no way to make the input safe.\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    }\n\n    return { trustAs: trustAs,\n             getTrusted: getTrusted,\n             valueOf: valueOf };\n  }];\n}\n\n\n/**\n * @ngdoc provider\n * @name $sceProvider\n * @this\n *\n * @description\n *\n * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.\n * -   enable/disable Strict Contextual Escaping (SCE) in a module\n * -   override the default implementation with a custom delegate\n *\n * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.\n */\n\n/**\n * @ngdoc service\n * @name $sce\n * @kind function\n *\n * @description\n *\n * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.\n *\n * ## Strict Contextual Escaping\n *\n * Strict Contextual Escaping (SCE) is a mode in which AngularJS constrains bindings to only render\n * trusted values. Its goal is to assist in writing code in a way that (a) is secure by default, and\n * (b) makes auditing for security vulnerabilities such as XSS, clickjacking, etc. a lot easier.\n *\n * ### Overview\n *\n * To systematically block XSS security bugs, AngularJS treats all values as untrusted by default in\n * HTML or sensitive URL bindings. When binding untrusted values, AngularJS will automatically\n * run security checks on them (sanitizations, whitelists, depending on context), or throw when it\n * cannot guarantee the security of the result. That behavior depends strongly on contexts: HTML\n * can be sanitized, but template URLs cannot, for instance.\n *\n * To illustrate this, consider the `ng-bind-html` directive. It renders its value directly as HTML:\n * we call that the *context*. When given an untrusted input, AngularJS will attempt to sanitize it\n * before rendering if a sanitizer is available, and throw otherwise. To bypass sanitization and\n * render the input as-is, you will need to mark it as trusted for that context before attempting\n * to bind it.\n *\n * As of version 1.2, AngularJS ships with SCE enabled by default.\n *\n * ### In practice\n *\n * Here's an example of a binding in a privileged context:\n *\n * ```\n * <input ng-model=\"userHtml\" aria-label=\"User input\">\n * <div ng-bind-html=\"userHtml\"></div>\n * ```\n *\n * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE\n * disabled, this application allows the user to render arbitrary HTML into the DIV, which would\n * be an XSS security bug. In a more realistic example, one may be rendering user comments, blog\n * articles, etc. via bindings. (HTML is just one example of a context where rendering user\n * controlled input creates security vulnerabilities.)\n *\n * For the case of HTML, you might use a library, either on the client side, or on the server side,\n * to sanitize unsafe HTML before binding to the value and rendering it in the document.\n *\n * How would you ensure that every place that used these types of bindings was bound to a value that\n * was sanitized by your library (or returned as safe for rendering by your server?)  How can you\n * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some\n * properties/fields and forgot to update the binding to the sanitized value?\n *\n * To be secure by default, AngularJS makes sure bindings go through that sanitization, or\n * any similar validation process, unless there's a good reason to trust the given value in this\n * context.  That trust is formalized with a function call. This means that as a developer, you\n * can assume all untrusted bindings are safe. Then, to audit your code for binding security issues,\n * you just need to ensure the values you mark as trusted indeed are safe - because they were\n * received from your server, sanitized by your library, etc. You can organize your codebase to\n * help with this - perhaps allowing only the files in a specific directory to do this.\n * Ensuring that the internal API exposed by that code doesn't markup arbitrary values as safe then\n * becomes a more manageable task.\n *\n * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}\n * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to\n * build the trusted versions of your values.\n *\n * ### How does it work?\n *\n * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted\n * $sce.getTrusted(context, value)} rather than to the value directly.  Think of this function as\n * a way to enforce the required security context in your data sink. Directives use {@link\n * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs\n * the {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals. Also,\n * when binding without directives, AngularJS will understand the context of your bindings\n * automatically.\n *\n * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link\n * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly\n * simplified):\n *\n * ```\n * var ngBindHtmlDirective = ['$sce', function($sce) {\n *   return function(scope, element, attr) {\n *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {\n *       element.html(value || '');\n *     });\n *   };\n * }];\n * ```\n *\n * ### Impact on loading templates\n *\n * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as\n * `templateUrl`'s specified by {@link guide/directive directives}.\n *\n * By default, AngularJS only loads templates from the same domain and protocol as the application\n * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or\n * protocols, you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist\n * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.\n *\n * *Please note*:\n * The browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy apply in addition to this and may further restrict whether the template is successfully\n * loaded.  This means that without the right CORS policy, loading templates from a different domain\n * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some\n * browsers.\n *\n * ### This feels like too much overhead\n *\n * It's important to remember that SCE only applies to interpolation expressions.\n *\n * If your expressions are constant literals, they're automatically trusted and you don't need to\n * call `$sce.trustAs` on them (e.g.\n * `<div ng-bind-html=\"'<b>implicitly trusted</b>'\"></div>`) just works (remember to include the\n * `ngSanitize` module). The `$sceDelegate` will also use the `$sanitize` service if it is available\n * when binding untrusted values to `$sce.HTML` context.\n * AngularJS provides an implementation in `angular-sanitize.js`, and if you\n * wish to use it, you will also need to depend on the {@link ngSanitize `ngSanitize`} module in\n * your application.\n *\n * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load\n * templates in `ng-include` from your application's domain without having to even know about SCE.\n * It blocks loading templates from other domains or loading templates over http from an https\n * served document.  You can change these by setting your own custom {@link\n * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link\n * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.\n *\n * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an\n * application that's secure and can be audited to verify that with much more ease than bolting\n * security onto an application later.\n *\n * <a name=\"contexts\"></a>\n * ### What trusted context types are supported?\n *\n * | Context             | Notes          |\n * |---------------------|----------------|\n * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. |\n * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |\n * | `$sce.MEDIA_URL`    | For URLs that are safe to render as media. Is automatically converted from string by sanitizing when needed. |\n * | `$sce.URL`          | For URLs that are safe to follow as links. Is automatically converted from string by sanitizing when needed. Note that `$sce.URL` makes a stronger statement about the URL than `$sce.MEDIA_URL` does and therefore contexts requiring values trusted for `$sce.URL` can be used anywhere that values trusted for `$sce.MEDIA_URL` are required.|\n * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` or `$sce.MEDIA_URL` do and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` or `$sce.MEDIA_URL` are required. <br><br> The {@link $sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider#resourceUrlWhitelist()} and {@link $sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider#resourceUrlBlacklist()} can be used to restrict trusted origins for `RESOURCE_URL` |\n * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |\n *\n *\n * <div class=\"alert alert-warning\">\n * Be aware that, before AngularJS 1.7.0, `a[href]` and `img[src]` used to sanitize their\n * interpolated values directly rather than rely upon {@link ng.$sce#getTrusted `$sce.getTrusted`}.\n *\n * **As of 1.7.0, this is no longer the case.**\n *\n * Now such interpolations are marked as requiring `$sce.URL` (for `a[href]`) or `$sce.MEDIA_URL`\n * (for `img[src]`), so that the sanitization happens (via `$sce.getTrusted...`) when the `$interpolate`\n * service evaluates the expressions.\n * </div>\n *\n * There are no CSS or JS context bindings in AngularJS currently, so their corresponding `$sce.trustAs`\n * functions aren't useful yet. This might evolve.\n *\n * ### Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name=\"resourceUrlPatternItem\"></a>\n *\n *  Each element in these arrays must be one of the following:\n *\n *  - **'self'**\n *    - The special **string**, `'self'`, can be used to match against all URLs of the **same\n *      domain** as the application document using the **same protocol**.\n *  - **String** (except the special value `'self'`)\n *    - The string is matched against the full *normalized / absolute URL* of the resource\n *      being tested (substring matches are not good enough.)\n *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters\n *      match themselves.\n *    - `*`: matches zero or more occurrences of any character other than one of the following 6\n *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'.  It's a useful wildcard for use\n *      in a whitelist.\n *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not\n *      appropriate for use in a scheme, domain, etc. as it would match too much.  (e.g.\n *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might\n *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.\n *      http://foo.example.com/templates/**).\n *  - **RegExp** (*see caveat below*)\n *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax\n *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to\n *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should\n *      have good test coverage).  For instance, the use of `.` in the regex is correct only in a\n *      small number of cases.  A `.` character in the regex used when matching the scheme or a\n *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It\n *      is highly recommended to use the string patterns and only fall back to regular expressions\n *      as a last resort.\n *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is\n *      matched against the **entire** *normalized / absolute URL* of the resource being tested\n *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags\n *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.\n *    - If you are generating your JavaScript from some other templating engine (not\n *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),\n *      remember to escape your regular expression (and be aware that you might need more than\n *      one level of escaping depending on your templating engine and the way you interpolated\n *      the value.)  Do make use of your platform's escaping mechanism as it might be good\n *      enough before coding your own.  E.g. Ruby has\n *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)\n *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).\n *      Javascript lacks a similar built in function for escaping.  Take a look at Google\n *      Closure library's [goog.string.regExpEscape(s)](\n *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.\n *\n * ### Show me an example using SCE.\n *\n * <example module=\"mySceApp\" deps=\"angular-sanitize.js\" name=\"sce-service\">\n * <file name=\"index.html\">\n *   <div ng-controller=\"AppController as myCtrl\">\n *     <i ng-bind-html=\"myCtrl.explicitlyTrustedHtml\" id=\"explicitlyTrustedHtml\"></i><br><br>\n *     <b>User comments</b><br>\n *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when\n *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an\n *     exploit.\n *     <div class=\"well\">\n *       <div ng-repeat=\"userComment in myCtrl.userComments\">\n *         <b>{{userComment.name}}</b>:\n *         <span ng-bind-html=\"userComment.htmlComment\" class=\"htmlComment\"></span>\n *         <br>\n *       </div>\n *     </div>\n *   </div>\n * </file>\n *\n * <file name=\"script.js\">\n *   angular.module('mySceApp', ['ngSanitize'])\n *     .controller('AppController', ['$http', '$templateCache', '$sce',\n *       function AppController($http, $templateCache, $sce) {\n *         var self = this;\n *         $http.get('test_data.json', {cache: $templateCache}).then(function(response) {\n *           self.userComments = response.data;\n *         });\n *         self.explicitlyTrustedHtml = $sce.trustAsHtml(\n *             '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *             'sanitization.&quot;\">Hover over this text.</span>');\n *       }]);\n * </file>\n *\n * <file name=\"test_data.json\">\n * [\n *   { \"name\": \"Alice\",\n *     \"htmlComment\":\n *         \"<span onmouseover='this.textContent=\\\"PWN3D!\\\"'>Is <i>anyone</i> reading this?</span>\"\n *   },\n *   { \"name\": \"Bob\",\n *     \"htmlComment\": \"<i>Yes!</i>  Am I the only other one?\"\n *   }\n * ]\n * </file>\n *\n * <file name=\"protractor.js\" type=\"protractor\">\n *   describe('SCE doc demo', function() {\n *     it('should sanitize untrusted values', function() {\n *       expect(element.all(by.css('.htmlComment')).first().getAttribute('innerHTML'))\n *           .toBe('<span>Is <i>anyone</i> reading this?</span>');\n *     });\n *\n *     it('should NOT sanitize explicitly trusted values', function() {\n *       expect(element(by.id('explicitlyTrustedHtml')).getAttribute('innerHTML')).toBe(\n *           '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *           'sanitization.&quot;\">Hover over this text.</span>');\n *     });\n *   });\n * </file>\n * </example>\n *\n *\n *\n * ## Can I disable SCE completely?\n *\n * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits\n * for little coding overhead.  It will be much harder to take an SCE disabled application and\n * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE\n * for cases where you have a lot of existing code that was written before SCE was introduced and\n * you're migrating them a module at a time. Also do note that this is an app-wide setting, so if\n * you are writing a library, you will cause security bugs applications using it.\n *\n * That said, here's how you can completely disable SCE:\n *\n * ```\n * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {\n *   // Completely disable SCE.  For demonstration purposes only!\n *   // Do not use in new projects or libraries.\n *   $sceProvider.enabled(false);\n * });\n * ```\n *\n */\n\nfunction $SceProvider() {\n  var enabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $sceProvider#enabled\n   * @kind function\n   *\n   * @param {boolean=} value If provided, then enables/disables SCE application-wide.\n   * @return {boolean} True if SCE is enabled, false otherwise.\n   *\n   * @description\n   * Enables/disables SCE and returns the current value.\n   */\n  this.enabled = function(value) {\n    if (arguments.length) {\n      enabled = !!value;\n    }\n    return enabled;\n  };\n\n\n  /* Design notes on the default implementation for SCE.\n   *\n   * The API contract for the SCE delegate\n   * -------------------------------------\n   * The SCE delegate object must provide the following 3 methods:\n   *\n   * - trustAs(contextEnum, value)\n   *     This method is used to tell the SCE service that the provided value is OK to use in the\n   *     contexts specified by contextEnum.  It must return an object that will be accepted by\n   *     getTrusted() for a compatible contextEnum and return this value.\n   *\n   * - valueOf(value)\n   *     For values that were not produced by trustAs(), return them as is.  For values that were\n   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if\n   *     trustAs is wrapping the given values into some type, this operation unwraps it when given\n   *     such a value.\n   *\n   * - getTrusted(contextEnum, value)\n   *     This function should return the value that is safe to use in the context specified by\n   *     contextEnum or throw and exception otherwise.\n   *\n   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be\n   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For\n   * instance, an implementation could maintain a registry of all trusted objects by context.  In\n   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would\n   * return the same object passed in if it was found in the registry under a compatible context or\n   * throw an exception otherwise.  An implementation might only wrap values some of the time based\n   * on some criteria.  getTrusted() might return a value and not throw an exception for special\n   * constants or objects even if not wrapped.  All such implementations fulfill this contract.\n   *\n   *\n   * A note on the inheritance model for SCE contexts\n   * ------------------------------------------------\n   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This\n   * is purely an implementation details.\n   *\n   * The contract is simply this:\n   *\n   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)\n   *     will also succeed.\n   *\n   * Inheritance happens to capture this in a natural way. In some future, we may not use\n   * inheritance anymore. That is OK because no code outside of sce.js and sceSpecs.js would need to\n   * be aware of this detail.\n   */\n\n  this.$get = ['$parse', '$sceDelegate', function(\n                $parse,   $sceDelegate) {\n    // Support: IE 9-11 only\n    // Prereq: Ensure that we're not running in IE<11 quirks mode.  In that mode, IE < 11 allow\n    // the \"expression(javascript expression)\" syntax which is insecure.\n    if (enabled && msie < 8) {\n      throw $sceMinErr('iequirks',\n        'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' +\n        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +\n        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');\n    }\n\n    var sce = shallowCopy(SCE_CONTEXTS);\n\n    /**\n     * @ngdoc method\n     * @name $sce#isEnabled\n     * @kind function\n     *\n     * @return {Boolean} True if SCE is enabled, false otherwise.  If you want to set the value, you\n     *     have to do it at module config time on {@link ng.$sceProvider $sceProvider}.\n     *\n     * @description\n     * Returns a boolean indicating if SCE is enabled.\n     */\n    sce.isEnabled = function() {\n      return enabled;\n    };\n    sce.trustAs = $sceDelegate.trustAs;\n    sce.getTrusted = $sceDelegate.getTrusted;\n    sce.valueOf = $sceDelegate.valueOf;\n\n    if (!enabled) {\n      sce.trustAs = sce.getTrusted = function(type, value) { return value; };\n      sce.valueOf = identity;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAs\n     *\n     * @description\n     * Converts AngularJS {@link guide/expression expression} into a function.  This is like {@link\n     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it\n     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,\n     * *result*)}\n     *\n     * @param {string} type The SCE context in which this result will be used.\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n    sce.parseAs = function sceParseAs(type, expr) {\n      var parsed = $parse(expr);\n      if (parsed.literal && parsed.constant) {\n        return parsed;\n      } else {\n        return $parse(expr, function(value) {\n          return sce.getTrusted(type, value);\n        });\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAs\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}. As such, returns a\n     * wrapped object that represents your value, and the trust you have in its safety for the given\n     * context. AngularJS can then use that value as-is in bindings of the specified secure context.\n     * This is used in bindings for `ng-bind-html`, `ng-include`, and most `src` attribute\n     * interpolations. See {@link ng.$sce $sce} for strict contextual escaping.\n     *\n     * @param {string} type The context in which this value is safe for use, e.g. `$sce.URL`,\n     *     `$sce.RESOURCE_URL`, `$sce.HTML`, `$sce.JS` or `$sce.CSS`.\n     *\n     * @param {*} value The value that that should be considered trusted.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in the context you specified.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsHtml(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.HTML` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.HTML` context (like `ng-bind-html`).\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsCss(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.CSS, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.CSS` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant\n     *     of your `value` in `$sce.CSS` context. This context is currently unused, so there are\n     *     almost no reasons to use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.URL` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.URL` context. That context is currently unused, so there are almost no reasons\n     *     to use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.RESOURCE_URL` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.RESOURCE_URL` context (template URLs in `ng-include`, most `src` attribute\n     *     bindings, ...)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsJs(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.JS` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.JS` context. That context is currently unused, so there are almost no reasons to\n     *     use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrusted\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,\n     * takes any input, and either returns a value that's safe to use in the specified context,\n     * or throws an exception. This function is aware of trusted values created by the `trustAs`\n     * function and its shorthands, and when contexts are appropriate, returns the unwrapped value\n     * as-is. Finally, this function can also throw when there is no way to turn `maybeTrusted` in a\n     * safe value (e.g., no sanitization is available or possible.)\n     *\n     * @param {string} type The context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs\n     *     `$sce.trustAs`} call, or anything else (which will not be considered trusted.)\n     * @return {*} A version of the value that's safe to use in the given context, or throws an\n     *     exception if this is impossible.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedHtml(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.HTML, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedCss\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedCss(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.CSS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedJs\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedJs(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.JS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsHtml(expression string)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsCss(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsJs(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    // Shorthand delegations.\n    var parse = sce.parseAs,\n        getTrusted = sce.getTrusted,\n        trustAs = sce.trustAs;\n\n    forEach(SCE_CONTEXTS, function(enumValue, name) {\n      var lName = lowercase(name);\n      sce[snakeToCamel('parse_as_' + lName)] = function(expr) {\n        return parse(enumValue, expr);\n      };\n      sce[snakeToCamel('get_trusted_' + lName)] = function(value) {\n        return getTrusted(enumValue, value);\n      };\n      sce[snakeToCamel('trust_as_' + lName)] = function(value) {\n        return trustAs(enumValue, value);\n      };\n    });\n\n    return sce;\n  }];\n}\n\n/* exported $SnifferProvider */\n\n/**\n * !!! This is an undocumented \"private\" service !!!\n *\n * @name $sniffer\n * @requires $window\n * @requires $document\n * @this\n *\n * @property {boolean} history Does the browser support html5 history api ?\n * @property {boolean} transitions Does the browser support CSS transition events ?\n * @property {boolean} animations Does the browser support CSS animation events ?\n *\n * @description\n * This is very simple implementation of testing browser's features.\n */\nfunction $SnifferProvider() {\n  this.$get = ['$window', '$document', function($window, $document) {\n    var eventSupport = {},\n        // Chrome Packaged Apps are not allowed to access `history.pushState`.\n        // If not sandboxed, they can be detected by the presence of `chrome.app.runtime`\n        // (see https://developer.chrome.com/apps/api_index). If sandboxed, they can be detected by\n        // the presence of an extension runtime ID and the absence of other Chrome runtime APIs\n        // (see https://developer.chrome.com/apps/manifest/sandbox).\n        // (NW.js apps have access to Chrome APIs, but do support `history`.)\n        isNw = $window.nw && $window.nw.process,\n        isChromePackagedApp =\n            !isNw &&\n            $window.chrome &&\n            ($window.chrome.app && $window.chrome.app.runtime ||\n                !$window.chrome.app && $window.chrome.runtime && $window.chrome.runtime.id),\n        hasHistoryPushState = !isChromePackagedApp && $window.history && $window.history.pushState,\n        android =\n          toInt((/android (\\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),\n        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),\n        document = $document[0] || {},\n        bodyStyle = document.body && document.body.style,\n        transitions = false,\n        animations = false;\n\n    if (bodyStyle) {\n      // Support: Android <5, Blackberry Browser 10, default Chrome in Android 4.4.x\n      // Mentioned browsers need a -webkit- prefix for transitions & animations.\n      transitions = !!('transition' in bodyStyle || 'webkitTransition' in bodyStyle);\n      animations = !!('animation' in bodyStyle || 'webkitAnimation' in bodyStyle);\n    }\n\n\n    return {\n      // Android has history.pushState, but it does not update location correctly\n      // so let's not use the history API at all.\n      // http://code.google.com/p/android/issues/detail?id=17471\n      // https://github.com/angular/angular.js/issues/904\n\n      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has\n      // so let's not use the history API also\n      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined\n      history: !!(hasHistoryPushState && !(android < 4) && !boxee),\n      hasEvent: function(event) {\n        // Support: IE 9-11 only\n        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have\n        // it. In particular the event is not fired when backspace or delete key are pressed or\n        // when cut operation is performed.\n        // IE10+ implements 'input' event but it erroneously fires under various situations,\n        // e.g. when placeholder changes, or a form is focused.\n        if (event === 'input' && msie) return false;\n\n        if (isUndefined(eventSupport[event])) {\n          var divElm = document.createElement('div');\n          eventSupport[event] = 'on' + event in divElm;\n        }\n\n        return eventSupport[event];\n      },\n      csp: csp(),\n      transitions: transitions,\n      animations: animations,\n      android: android\n    };\n  }];\n}\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $$taskTrackerFactory\n * @description\n * A function to create `TaskTracker` instances.\n *\n * A `TaskTracker` can keep track of pending tasks (grouped by type) and can notify interested\n * parties when all pending tasks (or tasks of a specific type) have been completed.\n *\n * @param {$log} log - A logger instance (such as `$log`). Used to log error during callback\n *     execution.\n *\n * @this\n */\nfunction $$TaskTrackerFactoryProvider() {\n  this.$get = valueFn(function(log) { return new TaskTracker(log); });\n}\n\nfunction TaskTracker(log) {\n  var self = this;\n  var taskCounts = {};\n  var taskCallbacks = [];\n\n  var ALL_TASKS_TYPE = self.ALL_TASKS_TYPE = '$$all$$';\n  var DEFAULT_TASK_TYPE = self.DEFAULT_TASK_TYPE = '$$default$$';\n\n  /**\n   * Execute the specified function and decrement the appropriate `taskCounts` counter.\n   * If the counter reaches 0, all corresponding `taskCallbacks` are executed.\n   *\n   * @param {Function} fn - The function to execute.\n   * @param {string=} [taskType=DEFAULT_TASK_TYPE] - The type of task that is being completed.\n   */\n  self.completeTask = completeTask;\n\n  /**\n   * Increase the task count for the specified task type (or the default task type if non is\n   * specified).\n   *\n   * @param {string=} [taskType=DEFAULT_TASK_TYPE] - The type of task whose count will be increased.\n   */\n  self.incTaskCount = incTaskCount;\n\n  /**\n   * Execute the specified callback when all pending tasks have been completed.\n   *\n   * If there are no pending tasks, the callback is executed immediately. You can optionally limit\n   * the tasks that will be waited for to a specific type, by passing a `taskType`.\n   *\n   * @param {function} callback - The function to call when there are no pending tasks.\n   * @param {string=} [taskType=ALL_TASKS_TYPE] - The type of tasks that will be waited for.\n   */\n  self.notifyWhenNoPendingTasks = notifyWhenNoPendingTasks;\n\n  function completeTask(fn, taskType) {\n    taskType = taskType || DEFAULT_TASK_TYPE;\n\n    try {\n      fn();\n    } finally {\n      decTaskCount(taskType);\n\n      var countForType = taskCounts[taskType];\n      var countForAll = taskCounts[ALL_TASKS_TYPE];\n\n      // If at least one of the queues (`ALL_TASKS_TYPE` or `taskType`) is empty, run callbacks.\n      if (!countForAll || !countForType) {\n        var getNextCallback = !countForAll ? getLastCallback : getLastCallbackForType;\n        var nextCb;\n\n        while ((nextCb = getNextCallback(taskType))) {\n          try {\n            nextCb();\n          } catch (e) {\n            log.error(e);\n          }\n        }\n      }\n    }\n  }\n\n  function decTaskCount(taskType) {\n    taskType = taskType || DEFAULT_TASK_TYPE;\n    if (taskCounts[taskType]) {\n      taskCounts[taskType]--;\n      taskCounts[ALL_TASKS_TYPE]--;\n    }\n  }\n\n  function getLastCallback() {\n    var cbInfo = taskCallbacks.pop();\n    return cbInfo && cbInfo.cb;\n  }\n\n  function getLastCallbackForType(taskType) {\n    for (var i = taskCallbacks.length - 1; i >= 0; --i) {\n      var cbInfo = taskCallbacks[i];\n      if (cbInfo.type === taskType) {\n        taskCallbacks.splice(i, 1);\n        return cbInfo.cb;\n      }\n    }\n  }\n\n  function incTaskCount(taskType) {\n    taskType = taskType || DEFAULT_TASK_TYPE;\n    taskCounts[taskType] = (taskCounts[taskType] || 0) + 1;\n    taskCounts[ALL_TASKS_TYPE] = (taskCounts[ALL_TASKS_TYPE] || 0) + 1;\n  }\n\n  function notifyWhenNoPendingTasks(callback, taskType) {\n    taskType = taskType || ALL_TASKS_TYPE;\n    if (!taskCounts[taskType]) {\n      callback();\n    } else {\n      taskCallbacks.push({type: taskType, cb: callback});\n    }\n  }\n}\n\nvar $templateRequestMinErr = minErr('$templateRequest');\n\n/**\n * @ngdoc provider\n * @name $templateRequestProvider\n * @this\n *\n * @description\n * Used to configure the options passed to the {@link $http} service when making a template request.\n *\n * For example, it can be used for specifying the \"Accept\" header that is sent to the server, when\n * requesting a template.\n */\nfunction $TemplateRequestProvider() {\n\n  var httpOptions;\n\n  /**\n   * @ngdoc method\n   * @name $templateRequestProvider#httpOptions\n   * @description\n   * The options to be passed to the {@link $http} service when making the request.\n   * You can use this to override options such as the \"Accept\" header for template requests.\n   *\n   * The {@link $templateRequest} will set the `cache` and the `transformResponse` properties of the\n   * options if not overridden here.\n   *\n   * @param {string=} value new value for the {@link $http} options.\n   * @returns {string|self} Returns the {@link $http} options when used as getter and self if used as setter.\n   */\n  this.httpOptions = function(val) {\n    if (val) {\n      httpOptions = val;\n      return this;\n    }\n    return httpOptions;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $templateRequest\n   *\n   * @description\n   * The `$templateRequest` service runs security checks then downloads the provided template using\n   * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request\n   * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the\n   * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the\n   * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted\n   * when `tpl` is of type string and `$templateCache` has the matching entry.\n   *\n   * If you want to pass custom options to the `$http` service, such as setting the Accept header you\n   * can configure this via {@link $templateRequestProvider#httpOptions}.\n   *\n   * `$templateRequest` is used internally by {@link $compile}, {@link ngRoute.$route}, and directives such\n   * as {@link ngInclude} to download and cache templates.\n   *\n   * 3rd party modules should use `$templateRequest` if their services or directives are loading\n   * templates.\n   *\n   * @param {string|TrustedResourceUrl} tpl The HTTP request template URL\n   * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty\n   *\n   * @return {Promise} a promise for the HTTP response data of the given URL.\n   *\n   * @property {number} totalPendingRequests total amount of pending template requests being downloaded.\n   */\n  this.$get = ['$exceptionHandler', '$templateCache', '$http', '$q', '$sce',\n    function($exceptionHandler, $templateCache, $http, $q, $sce) {\n\n      function handleRequestFn(tpl, ignoreRequestError) {\n        handleRequestFn.totalPendingRequests++;\n\n        // We consider the template cache holds only trusted templates, so\n        // there's no need to go through whitelisting again for keys that already\n        // are included in there. This also makes AngularJS accept any script\n        // directive, no matter its name. However, we still need to unwrap trusted\n        // types.\n        if (!isString(tpl) || isUndefined($templateCache.get(tpl))) {\n          tpl = $sce.getTrustedResourceUrl(tpl);\n        }\n\n        var transformResponse = $http.defaults && $http.defaults.transformResponse;\n\n        if (isArray(transformResponse)) {\n          transformResponse = transformResponse.filter(function(transformer) {\n            return transformer !== defaultHttpResponseTransform;\n          });\n        } else if (transformResponse === defaultHttpResponseTransform) {\n          transformResponse = null;\n        }\n\n        return $http.get(tpl, extend({\n            cache: $templateCache,\n            transformResponse: transformResponse\n          }, httpOptions))\n          .finally(function() {\n            handleRequestFn.totalPendingRequests--;\n          })\n          .then(function(response) {\n            return $templateCache.put(tpl, response.data);\n          }, handleError);\n\n        function handleError(resp) {\n          if (!ignoreRequestError) {\n            resp = $templateRequestMinErr('tpload',\n                'Failed to load template: {0} (HTTP status: {1} {2})',\n                tpl, resp.status, resp.statusText);\n\n            $exceptionHandler(resp);\n          }\n\n          return $q.reject(resp);\n        }\n      }\n\n      handleRequestFn.totalPendingRequests = 0;\n\n      return handleRequestFn;\n    }\n  ];\n}\n\n/** @this */\nfunction $$TestabilityProvider() {\n  this.$get = ['$rootScope', '$browser', '$location',\n       function($rootScope,   $browser,   $location) {\n\n    /**\n     * @name $testability\n     *\n     * @description\n     * The private $$testability service provides a collection of methods for use when debugging\n     * or by automated test and debugging tools.\n     */\n    var testability = {};\n\n    /**\n     * @name $$testability#findBindings\n     *\n     * @description\n     * Returns an array of elements that are bound (via ng-bind or {{}})\n     * to expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The binding expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression. Filters and whitespace are ignored.\n     */\n    testability.findBindings = function(element, expression, opt_exactMatch) {\n      var bindings = element.getElementsByClassName('ng-binding');\n      var matches = [];\n      forEach(bindings, function(binding) {\n        var dataBinding = angular.element(binding).data('$binding');\n        if (dataBinding) {\n          forEach(dataBinding, function(bindingName) {\n            if (opt_exactMatch) {\n              var matcher = new RegExp('(^|\\\\s)' + escapeForRegexp(expression) + '(\\\\s|\\\\||$)');\n              if (matcher.test(bindingName)) {\n                matches.push(binding);\n              }\n            } else {\n              if (bindingName.indexOf(expression) !== -1) {\n                matches.push(binding);\n              }\n            }\n          });\n        }\n      });\n      return matches;\n    };\n\n    /**\n     * @name $$testability#findModels\n     *\n     * @description\n     * Returns an array of elements that are two-way found via ng-model to\n     * expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The model expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression.\n     */\n    testability.findModels = function(element, expression, opt_exactMatch) {\n      var prefixes = ['ng-', 'data-ng-', 'ng\\\\:'];\n      for (var p = 0; p < prefixes.length; ++p) {\n        var attributeEquals = opt_exactMatch ? '=' : '*=';\n        var selector = '[' + prefixes[p] + 'model' + attributeEquals + '\"' + expression + '\"]';\n        var elements = element.querySelectorAll(selector);\n        if (elements.length) {\n          return elements;\n        }\n      }\n    };\n\n    /**\n     * @name $$testability#getLocation\n     *\n     * @description\n     * Shortcut for getting the location in a browser agnostic way. Returns\n     *     the path, search, and hash. (e.g. /path?a=b#hash)\n     */\n    testability.getLocation = function() {\n      return $location.url();\n    };\n\n    /**\n     * @name $$testability#setLocation\n     *\n     * @description\n     * Shortcut for navigating to a location without doing a full page reload.\n     *\n     * @param {string} url The location url (path, search and hash,\n     *     e.g. /path?a=b#hash) to go to.\n     */\n    testability.setLocation = function(url) {\n      if (url !== $location.url()) {\n        $location.url(url);\n        $rootScope.$digest();\n      }\n    };\n\n    /**\n     * @name $$testability#whenStable\n     *\n     * @description\n     * Calls the callback when all pending tasks are completed.\n     *\n     * Types of tasks waited for include:\n     * - Pending timeouts (via {@link $timeout}).\n     * - Pending HTTP requests (via {@link $http}).\n     * - In-progress route transitions (via {@link $route}).\n     * - Pending tasks scheduled via {@link $rootScope#$applyAsync}.\n     * - Pending tasks scheduled via {@link $rootScope#$evalAsync}.\n     *   These include tasks scheduled via `$evalAsync()` indirectly (such as {@link $q} promises).\n     *\n     * @param {function} callback\n     */\n    testability.whenStable = function(callback) {\n      $browser.notifyWhenNoOutstandingRequests(callback);\n    };\n\n    return testability;\n  }];\n}\n\nvar $timeoutMinErr = minErr('$timeout');\n\n/** @this */\nfunction $TimeoutProvider() {\n  this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler',\n       function($rootScope,   $browser,   $q,   $$q,   $exceptionHandler) {\n\n    var deferreds = {};\n\n\n    /**\n     * @ngdoc service\n     * @name $timeout\n     *\n     * @description\n     * AngularJS's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch\n     * block and delegates any exceptions to\n     * {@link ng.$exceptionHandler $exceptionHandler} service.\n     *\n     * The return value of calling `$timeout` is a promise, which will be resolved when\n     * the delay has passed and the timeout function, if provided, is executed.\n     *\n     * To cancel a timeout request, call `$timeout.cancel(promise)`.\n     *\n     * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to\n     * synchronously flush the queue of deferred functions.\n     *\n     * If you only want a promise that will be resolved after some specified delay\n     * then you can call `$timeout` without the `fn` function.\n     *\n     * @param {function()=} fn A function, whose execution should be delayed.\n     * @param {number=} [delay=0] Delay in milliseconds.\n     * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n     *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n     * @param {...*=} Pass additional parameters to the executed function.\n     * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise\n     *   will be resolved with the return value of the `fn` function.\n     *\n     */\n    function timeout(fn, delay, invokeApply) {\n      if (!isFunction(fn)) {\n        invokeApply = delay;\n        delay = fn;\n        fn = noop;\n      }\n\n      var args = sliceArgs(arguments, 3),\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise,\n          timeoutId;\n\n      timeoutId = $browser.defer(function() {\n        try {\n          deferred.resolve(fn.apply(null, args));\n        } catch (e) {\n          deferred.reject(e);\n          $exceptionHandler(e);\n        } finally {\n          delete deferreds[promise.$$timeoutId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }, delay, '$timeout');\n\n      promise.$$timeoutId = timeoutId;\n      deferreds[timeoutId] = deferred;\n\n      return promise;\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $timeout#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`. As a result of this, the promise will be\n     * resolved with a rejection.\n     *\n     * @param {Promise=} promise Promise returned by the `$timeout` function.\n     * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n     *   canceled.\n     */\n    timeout.cancel = function(promise) {\n      if (!promise) return false;\n\n      if (!promise.hasOwnProperty('$$timeoutId')) {\n        throw $timeoutMinErr('badprom',\n            '`$timeout.cancel()` called with a promise that was not generated by `$timeout()`.');\n      }\n\n      if (!deferreds.hasOwnProperty(promise.$$timeoutId)) return false;\n\n      var id = promise.$$timeoutId;\n      var deferred = deferreds[id];\n\n      // Timeout cancels should not report an unhandled promise.\n      markQExceptionHandled(deferred.promise);\n      deferred.reject('canceled');\n      delete deferreds[id];\n\n      return $browser.defer.cancel(id);\n    };\n\n    return timeout;\n  }];\n}\n\n// NOTE:  The usage of window and document instead of $window and $document here is\n// deliberate.  This service depends on the specific behavior of anchor nodes created by the\n// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and\n// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it\n// doesn't know about mocked locations and resolves URLs to the real document - which is\n// exactly the behavior needed here.  There is little value is mocking these out for this\n// service.\nvar urlParsingNode = window.document.createElement('a');\nvar originUrl = urlResolve(window.location.href);\nvar baseUrlParsingNode;\n\nurlParsingNode.href = 'http://[::1]';\n\n// Support: IE 9-11 only, Edge 16-17 only (fixed in 18 Preview)\n// IE/Edge don't wrap IPv6 addresses' hostnames in square brackets\n// when parsed out of an anchor element.\nvar ipv6InBrackets = urlParsingNode.hostname === '[::1]';\n\n/**\n *\n * Implementation Notes for non-IE browsers\n * ----------------------------------------\n * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,\n * results both in the normalizing and parsing of the URL.  Normalizing means that a relative\n * URL will be resolved into an absolute URL in the context of the application document.\n * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related\n * properties are all populated to reflect the normalized URL.  This approach has wide\n * compatibility - Safari 1+, Mozilla 1+ etc.  See\n * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *\n * Implementation Notes for IE\n * ---------------------------\n * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other\n * browsers.  However, the parsed components will not be set if the URL assigned did not specify\n * them.  (e.g. if you assign a.href = \"foo\", then a.protocol, a.host, etc. will be empty.)  We\n * work around that by performing the parsing in a 2nd step by taking a previously normalized\n * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the\n * properties such as protocol, hostname, port, etc.\n *\n * References:\n *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement\n *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *   http://url.spec.whatwg.org/#urlutils\n *   https://github.com/angular/angular.js/pull/2902\n *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/\n *\n * @kind function\n * @param {string|object} url The URL to be parsed. If `url` is not a string, it will be returned\n *     unchanged.\n * @description Normalizes and parses a URL.\n * @returns {object} Returns the normalized URL as a dictionary.\n *\n *   | member name   | Description                                                            |\n *   |---------------|------------------------------------------------------------------------|\n *   | href          | A normalized version of the provided URL if it was not an absolute URL |\n *   | protocol      | The protocol without the trailing colon                                |\n *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |\n *   | search        | The search params, minus the question mark                             |\n *   | hash          | The hash string, minus the hash symbol                                 |\n *   | hostname      | The hostname                                                           |\n *   | port          | The port, without \":\"                                                  |\n *   | pathname      | The pathname, beginning with \"/\"                                       |\n *\n */\nfunction urlResolve(url) {\n  if (!isString(url)) return url;\n\n  var href = url;\n\n  // Support: IE 9-11 only\n  if (msie) {\n    // Normalize before parse.  Refer Implementation Notes on why this is\n    // done in two steps on IE.\n    urlParsingNode.setAttribute('href', href);\n    href = urlParsingNode.href;\n  }\n\n  urlParsingNode.setAttribute('href', href);\n\n  var hostname = urlParsingNode.hostname;\n\n  if (!ipv6InBrackets && hostname.indexOf(':') > -1) {\n    hostname = '[' + hostname + ']';\n  }\n\n  return {\n    href: urlParsingNode.href,\n    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n    host: urlParsingNode.host,\n    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n    hostname: hostname,\n    port: urlParsingNode.port,\n    pathname: (urlParsingNode.pathname.charAt(0) === '/')\n      ? urlParsingNode.pathname\n      : '/' + urlParsingNode.pathname\n  };\n}\n\n/**\n * Parse a request URL and determine whether this is a same-origin request as the application\n * document.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the request is for the same origin as the application document.\n */\nfunction urlIsSameOrigin(requestUrl) {\n  return urlsAreSameOrigin(requestUrl, originUrl);\n}\n\n/**\n * Parse a request URL and determine whether it is same-origin as the current document base URL.\n *\n * Note: The base URL is usually the same as the document location (`location.href`) but can\n * be overriden by using the `<base>` tag.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the URL is same-origin as the document base URL.\n */\nfunction urlIsSameOriginAsBaseUrl(requestUrl) {\n  return urlsAreSameOrigin(requestUrl, getBaseUrl());\n}\n\n/**\n * Create a function that can check a URL's origin against a list of allowed/whitelisted origins.\n * The current location's origin is implicitly trusted.\n *\n * @param {string[]} whitelistedOriginUrls - A list of URLs (strings), whose origins are trusted.\n *\n * @returns {Function} - A function that receives a URL (string or parsed URL object) and returns\n *     whether it is of an allowed origin.\n */\nfunction urlIsAllowedOriginFactory(whitelistedOriginUrls) {\n  var parsedAllowedOriginUrls = [originUrl].concat(whitelistedOriginUrls.map(urlResolve));\n\n  /**\n   * Check whether the specified URL (string or parsed URL object) has an origin that is allowed\n   * based on a list of whitelisted-origin URLs. The current location's origin is implicitly\n   * trusted.\n   *\n   * @param {string|Object} requestUrl - The URL to be checked (provided as a string that will be\n   *     resolved or a parsed URL object).\n   *\n   * @returns {boolean} - Whether the specified URL is of an allowed origin.\n   */\n  return function urlIsAllowedOrigin(requestUrl) {\n    var parsedUrl = urlResolve(requestUrl);\n    return parsedAllowedOriginUrls.some(urlsAreSameOrigin.bind(null, parsedUrl));\n  };\n}\n\n/**\n * Determine if two URLs share the same origin.\n *\n * @param {string|Object} url1 - First URL to compare as a string or a normalized URL in the form of\n *     a dictionary object returned by `urlResolve()`.\n * @param {string|object} url2 - Second URL to compare as a string or a normalized URL in the form\n *     of a dictionary object returned by `urlResolve()`.\n *\n * @returns {boolean} - True if both URLs have the same origin, and false otherwise.\n */\nfunction urlsAreSameOrigin(url1, url2) {\n  url1 = urlResolve(url1);\n  url2 = urlResolve(url2);\n\n  return (url1.protocol === url2.protocol &&\n          url1.host === url2.host);\n}\n\n/**\n * Returns the current document base URL.\n * @returns {string}\n */\nfunction getBaseUrl() {\n  if (window.document.baseURI) {\n    return window.document.baseURI;\n  }\n\n  // `document.baseURI` is available everywhere except IE\n  if (!baseUrlParsingNode) {\n    baseUrlParsingNode = window.document.createElement('a');\n    baseUrlParsingNode.href = '.';\n\n    // Work-around for IE bug described in Implementation Notes. The fix in `urlResolve()` is not\n    // suitable here because we need to track changes to the base URL.\n    baseUrlParsingNode = baseUrlParsingNode.cloneNode(false);\n  }\n  return baseUrlParsingNode.href;\n}\n\n/**\n * @ngdoc service\n * @name $window\n * @this\n *\n * @description\n * A reference to the browser's `window` object. While `window`\n * is globally available in JavaScript, it causes testability problems, because\n * it is a global variable. In AngularJS we always refer to it through the\n * `$window` service, so it may be overridden, removed or mocked for testing.\n *\n * Expressions, like the one defined for the `ngClick` directive in the example\n * below, are evaluated with respect to the current scope.  Therefore, there is\n * no risk of inadvertently coding in a dependency on a global value in such an\n * expression.\n *\n * @example\n   <example module=\"windowExample\" name=\"window-service\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('windowExample', [])\n           .controller('ExampleController', ['$scope', '$window', function($scope, $window) {\n             $scope.greeting = 'Hello, World!';\n             $scope.doGreeting = function(greeting) {\n               $window.alert(greeting);\n             };\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"text\" ng-model=\"greeting\" aria-label=\"greeting\" />\n         <button ng-click=\"doGreeting(greeting)\">ALERT</button>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n      it('should display the greeting in the input box', function() {\n       element(by.model('greeting')).sendKeys('Hello, E2E Tests');\n       // If we click the button it will block the test runner\n       // element(':button').click();\n      });\n     </file>\n   </example>\n */\nfunction $WindowProvider() {\n  this.$get = valueFn(window);\n}\n\n/**\n * @name $$cookieReader\n * @requires $document\n *\n * @description\n * This is a private service for reading cookies used by $http and ngCookies\n *\n * @return {Object} a key/value map of the current cookies\n */\nfunction $$CookieReader($document) {\n  var rawDocument = $document[0] || {};\n  var lastCookies = {};\n  var lastCookieString = '';\n\n  function safeGetCookie(rawDocument) {\n    try {\n      return rawDocument.cookie || '';\n    } catch (e) {\n      return '';\n    }\n  }\n\n  function safeDecodeURIComponent(str) {\n    try {\n      return decodeURIComponent(str);\n    } catch (e) {\n      return str;\n    }\n  }\n\n  return function() {\n    var cookieArray, cookie, i, index, name;\n    var currentCookieString = safeGetCookie(rawDocument);\n\n    if (currentCookieString !== lastCookieString) {\n      lastCookieString = currentCookieString;\n      cookieArray = lastCookieString.split('; ');\n      lastCookies = {};\n\n      for (i = 0; i < cookieArray.length; i++) {\n        cookie = cookieArray[i];\n        index = cookie.indexOf('=');\n        if (index > 0) { //ignore nameless cookies\n          name = safeDecodeURIComponent(cookie.substring(0, index));\n          // the first value that is seen for a cookie is the most\n          // specific one.  values for the same cookie name that\n          // follow are for less specific paths.\n          if (isUndefined(lastCookies[name])) {\n            lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1));\n          }\n        }\n      }\n    }\n    return lastCookies;\n  };\n}\n\n$$CookieReader.$inject = ['$document'];\n\n/** @this */\nfunction $$CookieReaderProvider() {\n  this.$get = $$CookieReader;\n}\n\n/* global currencyFilter: true,\n dateFilter: true,\n filterFilter: true,\n jsonFilter: true,\n limitToFilter: true,\n lowercaseFilter: true,\n numberFilter: true,\n orderByFilter: true,\n uppercaseFilter: true,\n */\n\n/**\n * @ngdoc provider\n * @name $filterProvider\n * @description\n *\n * Filters are just functions which transform input to an output. However filters need to be\n * Dependency Injected. To achieve this a filter definition consists of a factory function which is\n * annotated with dependencies and is responsible for creating a filter function.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n * (`myapp_subsection_filterx`).\n * </div>\n *\n * ```js\n *   // Filter registration\n *   function MyModule($provide, $filterProvider) {\n *     // create a service to demonstrate injection (not always needed)\n *     $provide.value('greet', function(name){\n *       return 'Hello ' + name + '!';\n *     });\n *\n *     // register a filter factory which uses the\n *     // greet service to demonstrate DI.\n *     $filterProvider.register('greet', function(greet){\n *       // return the filter function which uses the greet service\n *       // to generate salutation\n *       return function(text) {\n *         // filters need to be forgiving so check input validity\n *         return text && greet(text) || text;\n *       };\n *     });\n *   }\n * ```\n *\n * The filter function is registered with the `$injector` under the filter name suffix with\n * `Filter`.\n *\n * ```js\n *   it('should be the same instance', inject(\n *     function($filterProvider) {\n *       $filterProvider.register('reverse', function(){\n *         return ...;\n *       });\n *     },\n *     function($filter, reverseFilter) {\n *       expect($filter('reverse')).toBe(reverseFilter);\n *     });\n * ```\n *\n *\n * For more information about how AngularJS filters work, and how to create your own filters, see\n * {@link guide/filter Filters} in the AngularJS Developer Guide.\n */\n\n/**\n * @ngdoc service\n * @name $filter\n * @kind function\n * @description\n * Filters are used for formatting data displayed to the user.\n *\n * They can be used in view templates, controllers or services. AngularJS comes\n * with a collection of [built-in filters](api/ng/filter), but it is easy to\n * define your own as well.\n *\n * The general syntax in templates is as follows:\n *\n * ```html\n * {{ expression [| filter_name[:parameter_value] ... ] }}\n * ```\n *\n * @param {String} name Name of the filter function to retrieve\n * @return {Function} the filter function\n * @example\n   <example name=\"$filter\" module=\"filterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainCtrl\">\n        <h3>{{ originalText }}</h3>\n        <h3>{{ filteredText }}</h3>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n      angular.module('filterExample', [])\n      .controller('MainCtrl', function($scope, $filter) {\n        $scope.originalText = 'hello';\n        $scope.filteredText = $filter('uppercase')($scope.originalText);\n      });\n     </file>\n   </example>\n  */\n$FilterProvider.$inject = ['$provide'];\n/** @this */\nfunction $FilterProvider($provide) {\n  var suffix = 'Filter';\n\n  /**\n   * @ngdoc method\n   * @name $filterProvider#register\n   * @param {string|Object} name Name of the filter function, or an object map of filters where\n   *    the keys are the filter names and the values are the filter factories.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n   *    Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n   *    your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n   *    (`myapp_subsection_filterx`).\n   *    </div>\n    * @param {Function} factory If the first argument was a string, a factory function for the filter to be registered.\n   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map\n   *    of the registered filter instances.\n   */\n  function register(name, factory) {\n    if (isObject(name)) {\n      var filters = {};\n      forEach(name, function(filter, key) {\n        filters[key] = register(key, filter);\n      });\n      return filters;\n    } else {\n      return $provide.factory(name + suffix, factory);\n    }\n  }\n  this.register = register;\n\n  this.$get = ['$injector', function($injector) {\n    return function(name) {\n      return $injector.get(name + suffix);\n    };\n  }];\n\n  ////////////////////////////////////////\n\n  /* global\n    currencyFilter: false,\n    dateFilter: false,\n    filterFilter: false,\n    jsonFilter: false,\n    limitToFilter: false,\n    lowercaseFilter: false,\n    numberFilter: false,\n    orderByFilter: false,\n    uppercaseFilter: false\n  */\n\n  register('currency', currencyFilter);\n  register('date', dateFilter);\n  register('filter', filterFilter);\n  register('json', jsonFilter);\n  register('limitTo', limitToFilter);\n  register('lowercase', lowercaseFilter);\n  register('number', numberFilter);\n  register('orderBy', orderByFilter);\n  register('uppercase', uppercaseFilter);\n}\n\n/**\n * @ngdoc filter\n * @name filter\n * @kind function\n *\n * @description\n * Selects a subset of items from `array` and returns it as a new array.\n *\n * @param {Array} array The source array.\n * <div class=\"alert alert-info\">\n *   **Note**: If the array contains objects that reference themselves, filtering is not possible.\n * </div>\n * @param {string|Object|function()} expression The predicate to be used for selecting items from\n *   `array`.\n *\n *   Can be one of:\n *\n *   - `string`: The string is used for matching against the contents of the `array`. All strings or\n *     objects with string properties in `array` that match this string will be returned. This also\n *     applies to nested object properties.\n *     The predicate can be negated by prefixing the string with `!`.\n *\n *   - `Object`: A pattern object can be used to filter specific properties on objects contained\n *     by `array`. For example `{name:\"M\", phone:\"1\"}` predicate will return an array of items\n *     which have property `name` containing \"M\" and property `phone` containing \"1\". A special\n *     property name (`$` by default) can be used (e.g. as in `{$: \"text\"}`) to accept a match\n *     against any property of the object or its nested object properties. That's equivalent to the\n *     simple substring match with a `string` as described above. The special property name can be\n *     overwritten, using the `anyPropertyKey` parameter.\n *     The predicate can be negated by prefixing the string with `!`.\n *     For example `{name: \"!M\"}` predicate will return an array of items which have property `name`\n *     not containing \"M\".\n *\n *     Note that a named property will match properties on the same level only, while the special\n *     `$` property will match properties on the same level or deeper. E.g. an array item like\n *     `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but\n *     **will** be matched by `{$: 'John'}`.\n *\n *   - `function(value, index, array)`: A predicate function can be used to write arbitrary filters.\n *     The function is called for each element of the array, with the element, its index, and\n *     the entire array itself as arguments.\n *\n *     The final result is an array of those elements that the predicate returned true for.\n *\n * @param {function(actual, expected)|true|false} [comparator] Comparator which is used in\n *     determining if values retrieved using `expression` (when it is not a function) should be\n *     considered a match based on the expected value (from the filter expression) and actual\n *     value (from the object in the array).\n *\n *   Can be one of:\n *\n *   - `function(actual, expected)`:\n *     The function will be given the object value and the predicate value to compare and\n *     should return true if both values should be considered equal.\n *\n *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`.\n *     This is essentially strict comparison of expected and actual.\n *\n *   - `false`: A short hand for a function which will look for a substring match in a case\n *     insensitive way. Primitive values are converted to strings. Objects are not compared against\n *     primitives, unless they have a custom `toString` method (e.g. `Date` objects).\n *\n *\n *   Defaults to `false`.\n *\n * @param {string} [anyPropertyKey] The special property name that matches against any property.\n *     By default `$`.\n *\n * @example\n   <example name=\"filter-filter\">\n     <file name=\"index.html\">\n       <div ng-init=\"friends = [{name:'John', phone:'555-1276'},\n                                {name:'Mary', phone:'800-BIG-MARY'},\n                                {name:'Mike', phone:'555-4321'},\n                                {name:'Adam', phone:'555-5678'},\n                                {name:'Julie', phone:'555-8765'},\n                                {name:'Juliette', phone:'555-5678'}]\"></div>\n\n       <label>Search: <input ng-model=\"searchText\"></label>\n       <table id=\"searchTextResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friend in friends | filter:searchText\">\n           <td>{{friend.name}}</td>\n           <td>{{friend.phone}}</td>\n         </tr>\n       </table>\n       <hr>\n       <label>Any: <input ng-model=\"search.$\"></label> <br>\n       <label>Name only <input ng-model=\"search.name\"></label><br>\n       <label>Phone only <input ng-model=\"search.phone\"></label><br>\n       <label>Equality <input type=\"checkbox\" ng-model=\"strict\"></label><br>\n       <table id=\"searchObjResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friendObj in friends | filter:search:strict\">\n           <td>{{friendObj.name}}</td>\n           <td>{{friendObj.phone}}</td>\n         </tr>\n       </table>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var expectFriendNames = function(expectedNames, key) {\n         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {\n           arr.forEach(function(wd, i) {\n             expect(wd.getText()).toMatch(expectedNames[i]);\n           });\n         });\n       };\n\n       it('should search across all fields when filtering with a string', function() {\n         var searchText = element(by.model('searchText'));\n         searchText.clear();\n         searchText.sendKeys('m');\n         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');\n\n         searchText.clear();\n         searchText.sendKeys('76');\n         expectFriendNames(['John', 'Julie'], 'friend');\n       });\n\n       it('should search in specific fields when filtering with a predicate object', function() {\n         var searchAny = element(by.model('search.$'));\n         searchAny.clear();\n         searchAny.sendKeys('i');\n         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');\n       });\n       it('should use a equal comparison when comparator is true', function() {\n         var searchName = element(by.model('search.name'));\n         var strict = element(by.model('strict'));\n         searchName.clear();\n         searchName.sendKeys('Julie');\n         strict.click();\n         expectFriendNames(['Julie'], 'friendObj');\n       });\n     </file>\n   </example>\n */\n\nfunction filterFilter() {\n  return function(array, expression, comparator, anyPropertyKey) {\n    if (!isArrayLike(array)) {\n      if (array == null) {\n        return array;\n      } else {\n        throw minErr('filter')('notarray', 'Expected array but received: {0}', array);\n      }\n    }\n\n    anyPropertyKey = anyPropertyKey || '$';\n    var expressionType = getTypeForFilter(expression);\n    var predicateFn;\n    var matchAgainstAnyProp;\n\n    switch (expressionType) {\n      case 'function':\n        predicateFn = expression;\n        break;\n      case 'boolean':\n      case 'null':\n      case 'number':\n      case 'string':\n        matchAgainstAnyProp = true;\n        // falls through\n      case 'object':\n        predicateFn = createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n        break;\n      default:\n        return array;\n    }\n\n    return Array.prototype.filter.call(array, predicateFn);\n  };\n}\n\n// Helper functions for `filterFilter`\nfunction createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp) {\n  var shouldMatchPrimitives = isObject(expression) && (anyPropertyKey in expression);\n  var predicateFn;\n\n  if (comparator === true) {\n    comparator = equals;\n  } else if (!isFunction(comparator)) {\n    comparator = function(actual, expected) {\n      if (isUndefined(actual)) {\n        // No substring matching against `undefined`\n        return false;\n      }\n      if ((actual === null) || (expected === null)) {\n        // No substring matching against `null`; only match against `null`\n        return actual === expected;\n      }\n      if (isObject(expected) || (isObject(actual) && !hasCustomToString(actual))) {\n        // Should not compare primitives against objects, unless they have custom `toString` method\n        return false;\n      }\n\n      actual = lowercase('' + actual);\n      expected = lowercase('' + expected);\n      return actual.indexOf(expected) !== -1;\n    };\n  }\n\n  predicateFn = function(item) {\n    if (shouldMatchPrimitives && !isObject(item)) {\n      return deepCompare(item, expression[anyPropertyKey], comparator, anyPropertyKey, false);\n    }\n    return deepCompare(item, expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n  };\n\n  return predicateFn;\n}\n\nfunction deepCompare(actual, expected, comparator, anyPropertyKey, matchAgainstAnyProp, dontMatchWholeObject) {\n  var actualType = getTypeForFilter(actual);\n  var expectedType = getTypeForFilter(expected);\n\n  if ((expectedType === 'string') && (expected.charAt(0) === '!')) {\n    return !deepCompare(actual, expected.substring(1), comparator, anyPropertyKey, matchAgainstAnyProp);\n  } else if (isArray(actual)) {\n    // In case `actual` is an array, consider it a match\n    // if ANY of it's items matches `expected`\n    return actual.some(function(item) {\n      return deepCompare(item, expected, comparator, anyPropertyKey, matchAgainstAnyProp);\n    });\n  }\n\n  switch (actualType) {\n    case 'object':\n      var key;\n      if (matchAgainstAnyProp) {\n        for (key in actual) {\n          // Under certain, rare, circumstances, key may not be a string and `charAt` will be undefined\n          // See: https://github.com/angular/angular.js/issues/15644\n          if (key.charAt && (key.charAt(0) !== '$') &&\n              deepCompare(actual[key], expected, comparator, anyPropertyKey, true)) {\n            return true;\n          }\n        }\n        return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, anyPropertyKey, false);\n      } else if (expectedType === 'object') {\n        for (key in expected) {\n          var expectedVal = expected[key];\n          if (isFunction(expectedVal) || isUndefined(expectedVal)) {\n            continue;\n          }\n\n          var matchAnyProperty = key === anyPropertyKey;\n          var actualVal = matchAnyProperty ? actual : actual[key];\n          if (!deepCompare(actualVal, expectedVal, comparator, anyPropertyKey, matchAnyProperty, matchAnyProperty)) {\n            return false;\n          }\n        }\n        return true;\n      } else {\n        return comparator(actual, expected);\n      }\n    case 'function':\n      return false;\n    default:\n      return comparator(actual, expected);\n  }\n}\n\n// Used for easily differentiating between `null` and actual `object`\nfunction getTypeForFilter(val) {\n  return (val === null) ? 'null' : typeof val;\n}\n\nvar MAX_DIGITS = 22;\nvar DECIMAL_SEP = '.';\nvar ZERO_CHAR = '0';\n\n/**\n * @ngdoc filter\n * @name currency\n * @kind function\n *\n * @description\n * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default\n * symbol for current locale is used.\n *\n * @param {number} amount Input to filter.\n * @param {string=} symbol Currency symbol or identifier to be displayed.\n * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale\n * @returns {string} Formatted number.\n *\n *\n * @example\n   <example module=\"currencyExample\" name=\"currency-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('currencyExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.amount = 1234.56;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"number\" ng-model=\"amount\" aria-label=\"amount\"> <br>\n         default currency symbol ($): <span id=\"currency-default\">{{amount | currency}}</span><br>\n         custom currency identifier (USD$): <span id=\"currency-custom\">{{amount | currency:\"USD$\"}}</span><br>\n         no fractions (0): <span id=\"currency-no-fractions\">{{amount | currency:\"USD$\":0}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should init with 1234.56', function() {\n         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');\n         expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235');\n       });\n       it('should update', function() {\n         if (browser.params.browser === 'safari') {\n           // Safari does not understand the minus key. See\n           // https://github.com/angular/protractor/issues/481\n           return;\n         }\n         element(by.model('amount')).clear();\n         element(by.model('amount')).sendKeys('-1234');\n         expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00');\n         expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234');\n       });\n     </file>\n   </example>\n */\ncurrencyFilter.$inject = ['$locale'];\nfunction currencyFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(amount, currencySymbol, fractionSize) {\n    if (isUndefined(currencySymbol)) {\n      currencySymbol = formats.CURRENCY_SYM;\n    }\n\n    if (isUndefined(fractionSize)) {\n      fractionSize = formats.PATTERNS[1].maxFrac;\n    }\n\n    // If the currency symbol is empty, trim whitespace around the symbol\n    var currencySymbolRe = !currencySymbol ? /\\s*\\u00A4\\s*/g : /\\u00A4/g;\n\n    // if null or undefined pass it through\n    return (amount == null)\n        ? amount\n        : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize).\n            replace(currencySymbolRe, currencySymbol);\n  };\n}\n\n/**\n * @ngdoc filter\n * @name number\n * @kind function\n *\n * @description\n * Formats a number as text.\n *\n * If the input is null or undefined, it will just be returned.\n * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively.\n * If the input is not a number an empty string is returned.\n *\n *\n * @param {number|string} number Number to format.\n * @param {(number|string)=} fractionSize Number of decimal places to round the number to.\n * If this is not provided then the fraction size is computed from the current locale's number\n * formatting pattern. In the case of the default locale, it will be 3.\n * @returns {string} Number rounded to `fractionSize` appropriately formatted based on the current\n *                   locale (e.g., in the en_US locale it will have \".\" as the decimal separator and\n *                   include \",\" group separators after each third digit).\n *\n * @example\n   <example module=\"numberFilterExample\" name=\"number-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('numberFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.val = 1234.56789;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter number: <input ng-model='val'></label><br>\n         Default formatting: <span id='number-default'>{{val | number}}</span><br>\n         No fractions: <span>{{val | number:0}}</span><br>\n         Negative number: <span>{{-val | number:4}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format numbers', function() {\n         expect(element(by.id('number-default')).getText()).toBe('1,234.568');\n         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');\n       });\n\n       it('should update', function() {\n         element(by.model('val')).clear();\n         element(by.model('val')).sendKeys('3374.333');\n         expect(element(by.id('number-default')).getText()).toBe('3,374.333');\n         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');\n      });\n     </file>\n   </example>\n */\nnumberFilter.$inject = ['$locale'];\nfunction numberFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(number, fractionSize) {\n\n    // if null or undefined pass it through\n    return (number == null)\n        ? number\n        : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,\n                       fractionSize);\n  };\n}\n\n/**\n * Parse a number (as a string) into three components that can be used\n * for formatting the number.\n *\n * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/)\n *\n * @param  {string} numStr The number to parse\n * @return {object} An object describing this number, containing the following keys:\n *  - d : an array of digits containing leading zeros as necessary\n *  - i : the number of the digits in `d` that are to the left of the decimal point\n *  - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d`\n *\n */\nfunction parse(numStr) {\n  var exponent = 0, digits, numberOfIntegerDigits;\n  var i, j, zeros;\n\n  // Decimal point?\n  if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) {\n    numStr = numStr.replace(DECIMAL_SEP, '');\n  }\n\n  // Exponential form?\n  if ((i = numStr.search(/e/i)) > 0) {\n    // Work out the exponent.\n    if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i;\n    numberOfIntegerDigits += +numStr.slice(i + 1);\n    numStr = numStr.substring(0, i);\n  } else if (numberOfIntegerDigits < 0) {\n    // There was no decimal point or exponent so it is an integer.\n    numberOfIntegerDigits = numStr.length;\n  }\n\n  // Count the number of leading zeros.\n  for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */ }\n\n  if (i === (zeros = numStr.length)) {\n    // The digits are all zero.\n    digits = [0];\n    numberOfIntegerDigits = 1;\n  } else {\n    // Count the number of trailing zeros\n    zeros--;\n    while (numStr.charAt(zeros) === ZERO_CHAR) zeros--;\n\n    // Trailing zeros are insignificant so ignore them\n    numberOfIntegerDigits -= i;\n    digits = [];\n    // Convert string to array of digits without leading/trailing zeros.\n    for (j = 0; i <= zeros; i++, j++) {\n      digits[j] = +numStr.charAt(i);\n    }\n  }\n\n  // If the number overflows the maximum allowed digits then use an exponent.\n  if (numberOfIntegerDigits > MAX_DIGITS) {\n    digits = digits.splice(0, MAX_DIGITS - 1);\n    exponent = numberOfIntegerDigits - 1;\n    numberOfIntegerDigits = 1;\n  }\n\n  return { d: digits, e: exponent, i: numberOfIntegerDigits };\n}\n\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changed the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) {\n    var digits = parsedNumber.d;\n    var fractionLen = digits.length - parsedNumber.i;\n\n    // determine fractionSize if it is not specified; `+fractionSize` converts it to a number\n    fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize;\n\n    // The index of the digit to where rounding is to occur\n    var roundAt = fractionSize + parsedNumber.i;\n    var digit = digits[roundAt];\n\n    if (roundAt > 0) {\n      // Drop fractional digits beyond `roundAt`\n      digits.splice(Math.max(parsedNumber.i, roundAt));\n\n      // Set non-fractional digits beyond `roundAt` to 0\n      for (var j = roundAt; j < digits.length; j++) {\n        digits[j] = 0;\n      }\n    } else {\n      // We rounded to zero so reset the parsedNumber\n      fractionLen = Math.max(0, fractionLen);\n      parsedNumber.i = 1;\n      digits.length = Math.max(1, roundAt = fractionSize + 1);\n      digits[0] = 0;\n      for (var i = 1; i < roundAt; i++) digits[i] = 0;\n    }\n\n    if (digit >= 5) {\n      if (roundAt - 1 < 0) {\n        for (var k = 0; k > roundAt; k--) {\n          digits.unshift(0);\n          parsedNumber.i++;\n        }\n        digits.unshift(1);\n        parsedNumber.i++;\n      } else {\n        digits[roundAt - 1]++;\n      }\n    }\n\n    // Pad out with zeros to get the required fraction length\n    for (; fractionLen < Math.max(0, fractionSize); fractionLen++) digits.push(0);\n\n\n    // Do any carrying, e.g. a digit was rounded up to 10\n    var carry = digits.reduceRight(function(carry, d, i, digits) {\n      d = d + carry;\n      digits[i] = d % 10;\n      return Math.floor(d / 10);\n    }, 0);\n    if (carry) {\n      digits.unshift(carry);\n      parsedNumber.i++;\n    }\n}\n\n/**\n * Format a number into a string\n * @param  {number} number       The number to format\n * @param  {{\n *           minFrac, // the minimum number of digits required in the fraction part of the number\n *           maxFrac, // the maximum number of digits required in the fraction part of the number\n *           gSize,   // number of digits in each group of separated digits\n *           lgSize,  // number of digits in the last group of digits before the decimal separator\n *           negPre,  // the string to go in front of a negative number (e.g. `-` or `(`))\n *           posPre,  // the string to go in front of a positive number\n *           negSuf,  // the string to go after a negative number (e.g. `)`)\n *           posSuf   // the string to go after a positive number\n *         }} pattern\n * @param  {string} groupSep     The string to separate groups of number (e.g. `,`)\n * @param  {string} decimalSep   The string to act as the decimal separator (e.g. `.`)\n * @param  {[type]} fractionSize The size of the fractional part of the number\n * @return {string}              The number formatted as a string\n */\nfunction formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {\n\n  if (!(isString(number) || isNumber(number)) || isNaN(number)) return '';\n\n  var isInfinity = !isFinite(number);\n  var isZero = false;\n  var numStr = Math.abs(number) + '',\n      formattedText = '',\n      parsedNumber;\n\n  if (isInfinity) {\n    formattedText = '\\u221e';\n  } else {\n    parsedNumber = parse(numStr);\n\n    roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac);\n\n    var digits = parsedNumber.d;\n    var integerLen = parsedNumber.i;\n    var exponent = parsedNumber.e;\n    var decimals = [];\n    isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true);\n\n    // pad zeros for small numbers\n    while (integerLen < 0) {\n      digits.unshift(0);\n      integerLen++;\n    }\n\n    // extract decimals digits\n    if (integerLen > 0) {\n      decimals = digits.splice(integerLen, digits.length);\n    } else {\n      decimals = digits;\n      digits = [0];\n    }\n\n    // format the integer digits with grouping separators\n    var groups = [];\n    if (digits.length >= pattern.lgSize) {\n      groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n    }\n    while (digits.length > pattern.gSize) {\n      groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n    }\n    if (digits.length) {\n      groups.unshift(digits.join(''));\n    }\n    formattedText = groups.join(groupSep);\n\n    // append the decimal digits\n    if (decimals.length) {\n      formattedText += decimalSep + decimals.join('');\n    }\n\n    if (exponent) {\n      formattedText += 'e+' + exponent;\n    }\n  }\n  if (number < 0 && !isZero) {\n    return pattern.negPre + formattedText + pattern.negSuf;\n  } else {\n    return pattern.posPre + formattedText + pattern.posSuf;\n  }\n}\n\nfunction padNumber(num, digits, trim, negWrap) {\n  var neg = '';\n  if (num < 0 || (negWrap && num <= 0)) {\n    if (negWrap) {\n      num = -num + 1;\n    } else {\n      num = -num;\n      neg = '-';\n    }\n  }\n  num = '' + num;\n  while (num.length < digits) num = ZERO_CHAR + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\nfunction dateGetter(name, size, offset, trim, negWrap) {\n  offset = offset || 0;\n  return function(date) {\n    var value = date['get' + name]();\n    if (offset > 0 || value > -offset) {\n      value += offset;\n    }\n    if (value === 0 && offset === -12) value = 12;\n    return padNumber(value, size, trim, negWrap);\n  };\n}\n\nfunction dateStrGetter(name, shortForm, standAlone) {\n  return function(date, formats) {\n    var value = date['get' + name]();\n    var propPrefix = (standAlone ? 'STANDALONE' : '') + (shortForm ? 'SHORT' : '');\n    var get = uppercase(propPrefix + name);\n\n    return formats[get][value];\n  };\n}\n\nfunction timeZoneGetter(date, formats, offset) {\n  var zone = -1 * offset;\n  var paddedZone = (zone >= 0) ? '+' : '';\n\n  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +\n                padNumber(Math.abs(zone % 60), 2);\n\n  return paddedZone;\n}\n\nfunction getFirstThursdayOfYear(year) {\n    // 0 = index of January\n    var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay();\n    // 4 = index of Thursday (+1 to account for 1st = 5)\n    // 11 = index of *next* Thursday (+1 account for 1st = 12)\n    return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst);\n}\n\nfunction getThursdayThisWeek(datetime) {\n    return new Date(datetime.getFullYear(), datetime.getMonth(),\n      // 4 = index of Thursday\n      datetime.getDate() + (4 - datetime.getDay()));\n}\n\nfunction weekGetter(size) {\n   return function(date) {\n      var firstThurs = getFirstThursdayOfYear(date.getFullYear()),\n         thisThurs = getThursdayThisWeek(date);\n\n      var diff = +thisThurs - +firstThurs,\n         result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n\n      return padNumber(result, size);\n   };\n}\n\nfunction ampmGetter(date, formats) {\n  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];\n}\n\nfunction eraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1];\n}\n\nfunction longEraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1];\n}\n\nvar DATE_FORMATS = {\n  yyyy: dateGetter('FullYear', 4, 0, false, true),\n    yy: dateGetter('FullYear', 2, 0, true, true),\n     y: dateGetter('FullYear', 1, 0, false, true),\n  MMMM: dateStrGetter('Month'),\n   MMM: dateStrGetter('Month', true),\n    MM: dateGetter('Month', 2, 1),\n     M: dateGetter('Month', 1, 1),\n  LLLL: dateStrGetter('Month', false, true),\n    dd: dateGetter('Date', 2),\n     d: dateGetter('Date', 1),\n    HH: dateGetter('Hours', 2),\n     H: dateGetter('Hours', 1),\n    hh: dateGetter('Hours', 2, -12),\n     h: dateGetter('Hours', 1, -12),\n    mm: dateGetter('Minutes', 2),\n     m: dateGetter('Minutes', 1),\n    ss: dateGetter('Seconds', 2),\n     s: dateGetter('Seconds', 1),\n     // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions\n   sss: dateGetter('Milliseconds', 3),\n  EEEE: dateStrGetter('Day'),\n   EEE: dateStrGetter('Day', true),\n     a: ampmGetter,\n     Z: timeZoneGetter,\n    ww: weekGetter(2),\n     w: weekGetter(1),\n     G: eraGetter,\n     GG: eraGetter,\n     GGG: eraGetter,\n     GGGG: longEraGetter\n};\n\nvar DATE_FORMATS_SPLIT = /((?:[^yMLdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|m+|s+|a|Z|G+|w+))([\\s\\S]*)/,\n    NUMBER_STRING = /^-?\\d+$/;\n\n/**\n * @ngdoc filter\n * @name date\n * @kind function\n *\n * @description\n *   Formats `date` to a string based on the requested `format`.\n *\n *   `format` string can be composed of the following elements:\n *\n *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)\n *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)\n *   * `'MMMM'`: Month in year (January-December)\n *   * `'MMM'`: Month in year (Jan-Dec)\n *   * `'MM'`: Month in year, padded (01-12)\n *   * `'M'`: Month in year (1-12)\n *   * `'LLLL'`: Stand-alone month in year (January-December)\n *   * `'dd'`: Day in month, padded (01-31)\n *   * `'d'`: Day in month (1-31)\n *   * `'EEEE'`: Day in Week,(Sunday-Saturday)\n *   * `'EEE'`: Day in Week, (Sun-Sat)\n *   * `'HH'`: Hour in day, padded (00-23)\n *   * `'H'`: Hour in day (0-23)\n *   * `'hh'`: Hour in AM/PM, padded (01-12)\n *   * `'h'`: Hour in AM/PM, (1-12)\n *   * `'mm'`: Minute in hour, padded (00-59)\n *   * `'m'`: Minute in hour (0-59)\n *   * `'ss'`: Second in minute, padded (00-59)\n *   * `'s'`: Second in minute (0-59)\n *   * `'sss'`: Millisecond in second, padded (000-999)\n *   * `'a'`: AM/PM marker\n *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)\n *   * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year\n *   * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year\n *   * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD')\n *   * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini')\n *\n *   `format` string can also be one of the following predefined\n *   {@link guide/i18n localizable formats}:\n *\n *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale\n *     (e.g. Sep 3, 2010 12:05:08 PM)\n *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)\n *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale\n *     (e.g. Friday, September 3, 2010)\n *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)\n *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)\n *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)\n *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)\n *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)\n *\n *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.\n *   `\"h 'in the morning'\"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence\n *   (e.g. `\"h 'o''clock'\"`).\n *\n *   Any other characters in the `format` string will be output as-is.\n *\n * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or\n *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its\n *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is\n *    specified in the string input, the time is considered to be in the local timezone.\n * @param {string=} format Formatting rules (see Description). If not specified,\n *    `mediumDate` is used.\n * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the\n *    continental US time zone abbreviations, but for general use, use a time zone offset, for\n *    example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *    If not specified, the timezone of the browser will be used.\n * @returns {string} Formatted string or the input if input is not recognized as date/millis.\n *\n * @example\n   <example name=\"filter-date\">\n     <file name=\"index.html\">\n       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:\n           <span>{{1288323623006 | date:'medium'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:\n          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:\n          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:\"MM/dd/yyyy 'at' h:mma\"}}</span>:\n          <span>{{'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"}}</span><br>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format date', function() {\n         expect(element(by.binding(\"1288323623006 | date:'medium'\")).getText()).\n            toMatch(/Oct 2\\d, 2010 \\d{1,2}:\\d{2}:\\d{2} (AM|PM)/);\n         expect(element(by.binding(\"1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'\")).getText()).\n            toMatch(/2010-10-2\\d \\d{2}:\\d{2}:\\d{2} (-|\\+)?\\d{4}/);\n         expect(element(by.binding(\"'1288323623006' | date:'MM/dd/yyyy @ h:mma'\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 @ \\d{1,2}:\\d{2}(AM|PM)/);\n         expect(element(by.binding(\"'1288323623006' | date:\\\"MM/dd/yyyy 'at' h:mma\\\"\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 at \\d{1,2}:\\d{2}(AM|PM)/);\n       });\n     </file>\n   </example>\n */\ndateFilter.$inject = ['$locale'];\nfunction dateFilter($locale) {\n\n\n  var R_ISO8601_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n                     // 1        2       3         4          5          6          7          8  9     10      11\n  function jsonStringToDate(string) {\n    var match;\n    if ((match = string.match(R_ISO8601_STR))) {\n      var date = new Date(0),\n          tzHour = 0,\n          tzMin  = 0,\n          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,\n          timeSetter = match[8] ? date.setUTCHours : date.setHours;\n\n      if (match[9]) {\n        tzHour = toInt(match[9] + match[10]);\n        tzMin = toInt(match[9] + match[11]);\n      }\n      dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n      var h = toInt(match[4] || 0) - tzHour;\n      var m = toInt(match[5] || 0) - tzMin;\n      var s = toInt(match[6] || 0);\n      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n      timeSetter.call(date, h, m, s, ms);\n      return date;\n    }\n    return string;\n  }\n\n\n  return function(date, format, timezone) {\n    var text = '',\n        parts = [],\n        fn, match;\n\n    format = format || 'mediumDate';\n    format = $locale.DATETIME_FORMATS[format] || format;\n    if (isString(date)) {\n      date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date);\n    }\n\n    if (isNumber(date)) {\n      date = new Date(date);\n    }\n\n    if (!isDate(date) || !isFinite(date.getTime())) {\n      return date;\n    }\n\n    while (format) {\n      match = DATE_FORMATS_SPLIT.exec(format);\n      if (match) {\n        parts = concat(parts, match, 1);\n        format = parts.pop();\n      } else {\n        parts.push(format);\n        format = null;\n      }\n    }\n\n    var dateTimezoneOffset = date.getTimezoneOffset();\n    if (timezone) {\n      dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n      date = convertTimezoneToLocal(date, timezone, true);\n    }\n    forEach(parts, function(value) {\n      fn = DATE_FORMATS[value];\n      text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset)\n                 : value === '\\'\\'' ? '\\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n    });\n\n    return text;\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name json\n * @kind function\n *\n * @description\n *   Allows you to convert a JavaScript object into JSON string.\n *\n *   This filter is mostly useful for debugging. When using the double curly {{value}} notation\n *   the binding is automatically converted to JSON.\n *\n * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.\n * @param {number=} spacing The number of spaces to use per indentation, defaults to 2.\n * @returns {string} JSON string.\n *\n *\n * @example\n   <example name=\"filter-json\">\n     <file name=\"index.html\">\n       <pre id=\"default-spacing\">{{ {'name':'value'} | json }}</pre>\n       <pre id=\"custom-spacing\">{{ {'name':'value'} | json:4 }}</pre>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should jsonify filtered objects', function() {\n         expect(element(by.id('default-spacing')).getText()).toMatch(/\\{\\n {2}\"name\": ?\"value\"\\n}/);\n         expect(element(by.id('custom-spacing')).getText()).toMatch(/\\{\\n {4}\"name\": ?\"value\"\\n}/);\n       });\n     </file>\n   </example>\n *\n */\nfunction jsonFilter() {\n  return function(object, spacing) {\n    if (isUndefined(spacing)) {\n        spacing = 2;\n    }\n    return toJson(object, spacing);\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name lowercase\n * @kind function\n * @description\n * Converts string to lowercase.\n *\n * See the {@link ng.uppercase uppercase filter documentation} for a functionally identical example.\n *\n * @see angular.lowercase\n */\nvar lowercaseFilter = valueFn(lowercase);\n\n\n/**\n * @ngdoc filter\n * @name uppercase\n * @kind function\n * @description\n * Converts string to uppercase.\n * @example\n   <example module=\"uppercaseFilterExample\" name=\"filter-uppercase\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('uppercaseFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.title = 'This is a title';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <!-- This title should be formatted normally -->\n         <h1>{{title}}</h1>\n         <!-- This title should be capitalized -->\n         <h1>{{title | uppercase}}</h1>\n       </div>\n     </file>\n   </example>\n */\nvar uppercaseFilter = valueFn(uppercase);\n\n/**\n * @ngdoc filter\n * @name limitTo\n * @kind function\n *\n * @description\n * Creates a new array or string containing only a specified number of elements. The elements are\n * taken from either the beginning or the end of the source array, string or number, as specified by\n * the value and sign (positive or negative) of `limit`. Other array-like objects are also supported\n * (e.g. array subclasses, NodeLists, jqLite/jQuery collections etc). If a number is used as input,\n * it is converted to a string.\n *\n * @param {Array|ArrayLike|string|number} input - Array/array-like, string or number to be limited.\n * @param {string|number} limit - The length of the returned array or string. If the `limit` number\n *     is positive, `limit` number of items from the beginning of the source array/string are copied.\n *     If the number is negative, `limit` number  of items from the end of the source array/string\n *     are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined,\n *     the input will be returned unchanged.\n * @param {(string|number)=} begin - Index at which to begin limitation. As a negative index,\n *     `begin` indicates an offset from the end of `input`. Defaults to `0`.\n * @returns {Array|string} A new sub-array or substring of length `limit` or less if the input had\n *     less than `limit` elements.\n *\n * @example\n   <example module=\"limitToExample\" name=\"limit-to-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('limitToExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.numbers = [1,2,3,4,5,6,7,8,9];\n             $scope.letters = \"abcdefghi\";\n             $scope.longNumber = 2345432342;\n             $scope.numLimit = 3;\n             $scope.letterLimit = 3;\n             $scope.longNumberLimit = 3;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>\n            Limit {{numbers}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"numLimit\">\n         </label>\n         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>\n         <label>\n            Limit {{letters}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"letterLimit\">\n         </label>\n         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>\n         <label>\n            Limit {{longNumber}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"longNumberLimit\">\n         </label>\n         <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var numLimitInput = element(by.model('numLimit'));\n       var letterLimitInput = element(by.model('letterLimit'));\n       var longNumberLimitInput = element(by.model('longNumberLimit'));\n       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));\n       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));\n       var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));\n\n       it('should limit the number array to first three items', function() {\n         expect(numLimitInput.getAttribute('value')).toBe('3');\n         expect(letterLimitInput.getAttribute('value')).toBe('3');\n         expect(longNumberLimitInput.getAttribute('value')).toBe('3');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abc');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 234');\n       });\n\n       // There is a bug in safari and protractor that doesn't like the minus key\n       // it('should update the output when -3 is entered', function() {\n       //   numLimitInput.clear();\n       //   numLimitInput.sendKeys('-3');\n       //   letterLimitInput.clear();\n       //   letterLimitInput.sendKeys('-3');\n       //   longNumberLimitInput.clear();\n       //   longNumberLimitInput.sendKeys('-3');\n       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');\n       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');\n       //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');\n       // });\n\n       it('should not exceed the maximum size of input array', function() {\n         numLimitInput.clear();\n         numLimitInput.sendKeys('100');\n         letterLimitInput.clear();\n         letterLimitInput.sendKeys('100');\n         longNumberLimitInput.clear();\n         longNumberLimitInput.sendKeys('100');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');\n       });\n     </file>\n   </example>\n*/\nfunction limitToFilter() {\n  return function(input, limit, begin) {\n    if (Math.abs(Number(limit)) === Infinity) {\n      limit = Number(limit);\n    } else {\n      limit = toInt(limit);\n    }\n    if (isNumberNaN(limit)) return input;\n\n    if (isNumber(input)) input = input.toString();\n    if (!isArrayLike(input)) return input;\n\n    begin = (!begin || isNaN(begin)) ? 0 : toInt(begin);\n    begin = (begin < 0) ? Math.max(0, input.length + begin) : begin;\n\n    if (limit >= 0) {\n      return sliceFn(input, begin, begin + limit);\n    } else {\n      if (begin === 0) {\n        return sliceFn(input, limit, input.length);\n      } else {\n        return sliceFn(input, Math.max(0, begin + limit), begin);\n      }\n    }\n  };\n}\n\nfunction sliceFn(input, begin, end) {\n  if (isString(input)) return input.slice(begin, end);\n\n  return slice.call(input, begin, end);\n}\n\n/**\n * @ngdoc filter\n * @name orderBy\n * @kind function\n *\n * @description\n * Returns an array containing the items from the specified `collection`, ordered by a `comparator`\n * function based on the values computed using the `expression` predicate.\n *\n * For example, `[{id: 'foo'}, {id: 'bar'}] | orderBy:'id'` would result in\n * `[{id: 'bar'}, {id: 'foo'}]`.\n *\n * The `collection` can be an Array or array-like object (e.g. NodeList, jQuery object, TypedArray,\n * String, etc).\n *\n * The `expression` can be a single predicate, or a list of predicates each serving as a tie-breaker\n * for the preceding one. The `expression` is evaluated against each item and the output is used\n * for comparing with other items.\n *\n * You can change the sorting order by setting `reverse` to `true`. By default, items are sorted in\n * ascending order.\n *\n * The comparison is done using the `comparator` function. If none is specified, a default, built-in\n * comparator is used (see below for details - in a nutshell, it compares numbers numerically and\n * strings alphabetically).\n *\n * ### Under the hood\n *\n * Ordering the specified `collection` happens in two phases:\n *\n * 1. All items are passed through the predicate (or predicates), and the returned values are saved\n *    along with their type (`string`, `number` etc). For example, an item `{label: 'foo'}`, passed\n *    through a predicate that extracts the value of the `label` property, would be transformed to:\n *    ```\n *    {\n *      value: 'foo',\n *      type: 'string',\n *      index: ...\n *    }\n *    ```\n *    **Note:** `null` values use `'null'` as their type.\n * 2. The comparator function is used to sort the items, based on the derived values, types and\n *    indices.\n *\n * If you use a custom comparator, it will be called with pairs of objects of the form\n * `{value: ..., type: '...', index: ...}` and is expected to return `0` if the objects are equal\n * (as far as the comparator is concerned), `-1` if the 1st one should be ranked higher than the\n * second, or `1` otherwise.\n *\n * In order to ensure that the sorting will be deterministic across platforms, if none of the\n * specified predicates can distinguish between two items, `orderBy` will automatically introduce a\n * dummy predicate that returns the item's index as `value`.\n * (If you are using a custom comparator, make sure it can handle this predicate as well.)\n *\n * If a custom comparator still can't distinguish between two items, then they will be sorted based\n * on their index using the built-in comparator.\n *\n * Finally, in an attempt to simplify things, if a predicate returns an object as the extracted\n * value for an item, `orderBy` will try to convert that object to a primitive value, before passing\n * it to the comparator. The following rules govern the conversion:\n *\n * 1. If the object has a `valueOf()` method that returns a primitive, its return value will be\n *    used instead.<br />\n *    (If the object has a `valueOf()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 2. If the object has a custom `toString()` method (i.e. not the one inherited from `Object`) that\n *    returns a primitive, its return value will be used instead.<br />\n *    (If the object has a `toString()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 3. No conversion; the object itself is used.\n *\n * ### The default comparator\n *\n * The default, built-in comparator should be sufficient for most usecases. In short, it compares\n * numbers numerically, strings alphabetically (and case-insensitively), for objects falls back to\n * using their index in the original collection, sorts values of different types by type and puts\n * `undefined` and `null` values at the end of the sorted list.\n *\n * More specifically, it follows these steps to determine the relative order of items:\n *\n * 1. If the compared values are of different types:\n *    - If one of the values is undefined, consider it \"greater than\" the other.\n *    - Else if one of the values is null, consider it \"greater than\" the other.\n *    - Else compare the types themselves alphabetically.\n * 2. If both values are of type `string`, compare them alphabetically in a case- and\n *    locale-insensitive way.\n * 3. If both values are objects, compare their indices instead.\n * 4. Otherwise, return:\n *    -  `0`, if the values are equal (by strict equality comparison, i.e. using `===`).\n *    - `-1`, if the 1st value is \"less than\" the 2nd value (compared using the `<` operator).\n *    -  `1`, otherwise.\n *\n * **Note:** If you notice numbers not being sorted as expected, make sure they are actually being\n *           saved as numbers and not strings.\n * **Note:** For the purpose of sorting, `null` and `undefined` are considered \"greater than\"\n *           any other value (with undefined \"greater than\" null). This effectively means that `null`\n *           and `undefined` values end up at the end of a list sorted in ascending order.\n * **Note:** `null` values use `'null'` as their type to be able to distinguish them from objects.\n *\n * @param {Array|ArrayLike} collection - The collection (array or array-like object) to sort.\n * @param {(Function|string|Array.<Function|string>)=} expression - A predicate (or list of\n *    predicates) to be used by the comparator to determine the order of elements.\n *\n *    Can be one of:\n *\n *    - `Function`: A getter function. This function will be called with each item as argument and\n *      the return value will be used for sorting.\n *    - `string`: An AngularJS expression. This expression will be evaluated against each item and the\n *      result will be used for sorting. For example, use `'label'` to sort by a property called\n *      `label` or `'label.substring(0, 3)'` to sort by the first 3 characters of the `label`\n *      property.<br />\n *      (The result of a constant expression is interpreted as a property name to be used for\n *      comparison. For example, use `'\"special name\"'` (note the extra pair of quotes) to sort by a\n *      property called `special name`.)<br />\n *      An expression can be optionally prefixed with `+` or `-` to control the sorting direction,\n *      ascending or descending. For example, `'+label'` or `'-label'`. If no property is provided,\n *      (e.g. `'+'` or `'-'`), the collection element itself is used in comparisons.\n *    - `Array`: An array of function and/or string predicates. If a predicate cannot determine the\n *      relative order of two items, the next predicate is used as a tie-breaker.\n *\n * **Note:** If the predicate is missing or empty then it defaults to `'+'`.\n *\n * @param {boolean=} reverse - If `true`, reverse the sorting order.\n * @param {(Function)=} comparator - The comparator function used to determine the relative order of\n *    value pairs. If omitted, the built-in comparator will be used.\n *\n * @returns {Array} - The sorted array.\n *\n *\n * @example\n * ### Ordering a table with `ngRepeat`\n *\n * The example below demonstrates a simple {@link ngRepeat ngRepeat}, where the data is sorted by\n * age in descending order (expression is set to `'-age'`). The `comparator` is not set, which means\n * it defaults to the built-in comparator.\n *\n   <example name=\"orderBy-static\" module=\"orderByExample1\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <table class=\"friends\">\n           <tr>\n             <th>Name</th>\n             <th>Phone Number</th>\n             <th>Age</th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:'-age'\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample1', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var names = element.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by age in reverse order', function() {\n         expect(names.get(0).getText()).toBe('Adam');\n         expect(names.get(1).getText()).toBe('Julie');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('John');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Changing parameters dynamically\n *\n * All parameters can be changed dynamically. The next example shows how you can make the columns of\n * a table sortable, by binding the `expression` and `reverse` parameters to scope properties.\n *\n   <example name=\"orderBy-dynamic\" module=\"orderByExample2\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"propertyName = null; reverse = false\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:propertyName:reverse\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample2', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = friends;\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = ($scope.propertyName === propertyName) ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using `orderBy` inside a controller\n *\n * It is also possible to call the `orderBy` filter manually, by injecting `orderByFilter`, and\n * calling it with the desired parameters. (Alternatively, you could inject the `$filter` factory\n * and retrieve the `orderBy` filter with `$filter('orderBy')`.)\n *\n   <example name=\"orderBy-call-manually\" module=\"orderByExample3\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"sortBy(null)\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample3', [])\n         .controller('ExampleController', ['$scope', 'orderByFilter', function($scope, orderBy) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = (propertyName !== null && $scope.propertyName === propertyName)\n                 ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n             $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using a custom comparator\n *\n * If you have very specific requirements about the way items are sorted, you can pass your own\n * comparator function. For example, you might need to compare some strings in a locale-sensitive\n * way. (When specifying a custom comparator, you also need to pass a value for the `reverse`\n * argument - passing `false` retains the default sorting order, i.e. ascending.)\n *\n   <example name=\"orderBy-custom-comparator\" module=\"orderByExample4\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <div class=\"friends-container custom-comparator\">\n           <h3>Locale-sensitive Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter':false:localeSensitiveComparator\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n         <div class=\"friends-container default-comparator\">\n           <h3>Default Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter'\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample4', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   favoriteLetter: 'Ä'},\n             {name: 'Mary',   favoriteLetter: 'Ü'},\n             {name: 'Mike',   favoriteLetter: 'Ö'},\n             {name: 'Adam',   favoriteLetter: 'H'},\n             {name: 'Julie',  favoriteLetter: 'Z'}\n           ];\n\n           $scope.localeSensitiveComparator = function(v1, v2) {\n             // If we don't get strings, just compare by index\n             if (v1.type !== 'string' || v2.type !== 'string') {\n               return (v1.index < v2.index) ? -1 : 1;\n             }\n\n             // Compare strings alphabetically, taking locale into account\n             return v1.value.localeCompare(v2.value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends-container {\n         display: inline-block;\n         margin: 0 30px;\n       }\n\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var container = element(by.css('.custom-comparator'));\n       var names = container.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by favorite letter (in correct alphabetical order)', function() {\n         expect(names.get(0).getText()).toBe('John');\n         expect(names.get(1).getText()).toBe('Adam');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n *\n */\norderByFilter.$inject = ['$parse'];\nfunction orderByFilter($parse) {\n  return function(array, sortPredicate, reverseOrder, compareFn) {\n\n    if (array == null) return array;\n    if (!isArrayLike(array)) {\n      throw minErr('orderBy')('notarray', 'Expected array but received: {0}', array);\n    }\n\n    if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; }\n    if (sortPredicate.length === 0) { sortPredicate = ['+']; }\n\n    var predicates = processPredicates(sortPredicate);\n\n    var descending = reverseOrder ? -1 : 1;\n\n    // Define the `compare()` function. Use a default comparator if none is specified.\n    var compare = isFunction(compareFn) ? compareFn : defaultCompare;\n\n    // The next three lines are a version of a Swartzian Transform idiom from Perl\n    // (sometimes called the Decorate-Sort-Undecorate idiom)\n    // See https://en.wikipedia.org/wiki/Schwartzian_transform\n    var compareValues = Array.prototype.map.call(array, getComparisonObject);\n    compareValues.sort(doComparison);\n    array = compareValues.map(function(item) { return item.value; });\n\n    return array;\n\n    function getComparisonObject(value, index) {\n      // NOTE: We are adding an extra `tieBreaker` value based on the element's index.\n      // This will be used to keep the sort stable when none of the input predicates can\n      // distinguish between two elements.\n      return {\n        value: value,\n        tieBreaker: {value: index, type: 'number', index: index},\n        predicateValues: predicates.map(function(predicate) {\n          return getPredicateValue(predicate.get(value), index);\n        })\n      };\n    }\n\n    function doComparison(v1, v2) {\n      for (var i = 0, ii = predicates.length; i < ii; i++) {\n        var result = compare(v1.predicateValues[i], v2.predicateValues[i]);\n        if (result) {\n          return result * predicates[i].descending * descending;\n        }\n      }\n\n      return (compare(v1.tieBreaker, v2.tieBreaker) || defaultCompare(v1.tieBreaker, v2.tieBreaker)) * descending;\n    }\n  };\n\n  function processPredicates(sortPredicates) {\n    return sortPredicates.map(function(predicate) {\n      var descending = 1, get = identity;\n\n      if (isFunction(predicate)) {\n        get = predicate;\n      } else if (isString(predicate)) {\n        if ((predicate.charAt(0) === '+' || predicate.charAt(0) === '-')) {\n          descending = predicate.charAt(0) === '-' ? -1 : 1;\n          predicate = predicate.substring(1);\n        }\n        if (predicate !== '') {\n          get = $parse(predicate);\n          if (get.constant) {\n            var key = get();\n            get = function(value) { return value[key]; };\n          }\n        }\n      }\n      return {get: get, descending: descending};\n    });\n  }\n\n  function isPrimitive(value) {\n    switch (typeof value) {\n      case 'number': /* falls through */\n      case 'boolean': /* falls through */\n      case 'string':\n        return true;\n      default:\n        return false;\n    }\n  }\n\n  function objectValue(value) {\n    // If `valueOf` is a valid function use that\n    if (isFunction(value.valueOf)) {\n      value = value.valueOf();\n      if (isPrimitive(value)) return value;\n    }\n    // If `toString` is a valid function and not the one from `Object.prototype` use that\n    if (hasCustomToString(value)) {\n      value = value.toString();\n      if (isPrimitive(value)) return value;\n    }\n\n    return value;\n  }\n\n  function getPredicateValue(value, index) {\n    var type = typeof value;\n    if (value === null) {\n      type = 'null';\n    } else if (type === 'object') {\n      value = objectValue(value);\n    }\n    return {value: value, type: type, index: index};\n  }\n\n  function defaultCompare(v1, v2) {\n    var result = 0;\n    var type1 = v1.type;\n    var type2 = v2.type;\n\n    if (type1 === type2) {\n      var value1 = v1.value;\n      var value2 = v2.value;\n\n      if (type1 === 'string') {\n        // Compare strings case-insensitively\n        value1 = value1.toLowerCase();\n        value2 = value2.toLowerCase();\n      } else if (type1 === 'object') {\n        // For basic objects, use the position of the object\n        // in the collection instead of the value\n        if (isObject(value1)) value1 = v1.index;\n        if (isObject(value2)) value2 = v2.index;\n      }\n\n      if (value1 !== value2) {\n        result = value1 < value2 ? -1 : 1;\n      }\n    } else {\n      result = (type1 === 'undefined') ? 1 :\n        (type2 === 'undefined') ? -1 :\n        (type1 === 'null') ? 1 :\n        (type2 === 'null') ? -1 :\n        (type1 < type2) ? -1 : 1;\n    }\n\n    return result;\n  }\n}\n\nfunction ngDirective(directive) {\n  if (isFunction(directive)) {\n    directive = {\n      link: directive\n    };\n  }\n  directive.restrict = directive.restrict || 'AC';\n  return valueFn(directive);\n}\n\n/**\n * @ngdoc directive\n * @name a\n * @restrict E\n *\n * @description\n * Modifies the default behavior of the html a tag so that the default action is prevented when\n * the href attribute is empty.\n *\n * For dynamically creating `href` attributes for a tags, see the {@link ng.ngHref `ngHref`} directive.\n */\nvar htmlAnchorDirective = valueFn({\n  restrict: 'E',\n  compile: function(element, attr) {\n    if (!attr.href && !attr.xlinkHref) {\n      return function(scope, element) {\n        // If the linked element is not an anchor tag anymore, do nothing\n        if (element[0].nodeName.toLowerCase() !== 'a') return;\n\n        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?\n                   'xlink:href' : 'href';\n        element.on('click', function(event) {\n          // if we have no href url, then don't navigate anywhere.\n          if (!element.attr(href)) {\n            event.preventDefault();\n          }\n        });\n      };\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngHref\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in an href attribute will\n * make the link go to the wrong URL if the user clicks it before\n * AngularJS has a chance to replace the `{{hash}}` markup with its\n * value. Until AngularJS replaces the markup the link will be broken\n * and will most likely return a 404 error. The `ngHref` directive\n * solves this problem.\n *\n * The wrong way to write it:\n * ```html\n * <a href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <a ng-href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * @element A\n * @param {template} ngHref any string which can contain `{{}}` markup.\n *\n * @example\n * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes\n * in links and their different behaviors:\n    <example name=\"ng-href\">\n      <file name=\"index.html\">\n        <input ng-model=\"value\" /><br />\n        <a id=\"link-1\" href ng-click=\"value = 1\">link 1</a> (link, don't reload)<br />\n        <a id=\"link-2\" href=\"\" ng-click=\"value = 2\">link 2</a> (link, don't reload)<br />\n        <a id=\"link-3\" ng-href=\"/{{'123'}}\">link 3</a> (link, reload!)<br />\n        <a id=\"link-4\" href=\"\" name=\"xx\" ng-click=\"value = 4\">anchor</a> (link, don't reload)<br />\n        <a id=\"link-5\" name=\"xxx\" ng-click=\"value = 5\">anchor</a> (no link)<br />\n        <a id=\"link-6\" ng-href=\"{{value}}\">link</a> (link, change location)\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should execute ng-click but not reload when href without value', function() {\n          element(by.id('link-1')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('1');\n          expect(element(by.id('link-1')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when href empty string', function() {\n          element(by.id('link-2')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('2');\n          expect(element(by.id('link-2')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click and change url when ng-href specified', function() {\n          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\\/123$/);\n\n          element(by.id('link-3')).click();\n\n          // At this point, we navigate away from an AngularJS page, so we need\n          // to use browser.driver to get the base webdriver.\n\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/123$/);\n            });\n          }, 5000, 'page should navigate to /123');\n        });\n\n        it('should execute ng-click but not reload when href empty string and name specified', function() {\n          element(by.id('link-4')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('4');\n          expect(element(by.id('link-4')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when no href but name specified', function() {\n          element(by.id('link-5')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('5');\n          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);\n        });\n\n        it('should only change url when only ng-href', function() {\n          element(by.model('value')).clear();\n          element(by.model('value')).sendKeys('6');\n          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\\/6$/);\n\n          element(by.id('link-6')).click();\n\n          // At this point, we navigate away from an AngularJS page, so we need\n          // to use browser.driver to get the base webdriver.\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/6$/);\n            });\n          }, 5000, 'page should navigate to /6');\n        });\n      </file>\n    </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngSrc\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in a `src` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until AngularJS replaces the expression inside\n * `{{hash}}`. The `ngSrc` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrc any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngSrcset\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in a `srcset` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until AngularJS replaces the expression inside\n * `{{hash}}`. The `ngSrcset` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrcset any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngDisabled\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * This directive sets the `disabled` attribute on the element (typically a form control,\n * e.g. `input`, `button`, `select` etc.) if the\n * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `disabled`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-disabled\">\n      <file name=\"index.html\">\n        <label>Click me to toggle: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <button ng-model=\"button\" ng-disabled=\"checked\">Button</button>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle button', function() {\n          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,\n *     then the `disabled` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngChecked\n * @restrict A\n * @priority 100\n *\n * @description\n * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy.\n *\n * Note that this directive should not be used together with {@link ngModel `ngModel`},\n * as this can lead to unexpected behavior.\n *\n * A special directive is necessary because we cannot use interpolation inside the `checked`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-checked\">\n      <file name=\"index.html\">\n        <label>Check me to check both: <input type=\"checkbox\" ng-model=\"leader\"></label><br/>\n        <input id=\"checkFollower\" type=\"checkbox\" ng-checked=\"leader\" aria-label=\"Follower input\">\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should check both checkBoxes', function() {\n          expect(element(by.id('checkFollower')).getAttribute('checked')).toBeFalsy();\n          element(by.model('leader')).click();\n          expect(element(by.id('checkFollower')).getAttribute('checked')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,\n *     then the `checked` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngReadonly\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `readonly` attribute on the element, if the expression inside `ngReadonly` is truthy.\n * Note that `readonly` applies only to `input` elements with specific types. [See the input docs on\n * MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-readonly) for more information.\n *\n * A special directive is necessary because we cannot use interpolation inside the `readonly`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-readonly\">\n      <file name=\"index.html\">\n        <label>Check me to make text readonly: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <input type=\"text\" ng-readonly=\"checked\" value=\"I'm AngularJS\" aria-label=\"Readonly field\" />\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle readonly attr', function() {\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,\n *     then special attribute \"readonly\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSelected\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `selected`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * <div class=\"alert alert-warning\">\n *   **Note:** `ngSelected` does not interact with the `select` and `ngModel` directives, it only\n *   sets the `selected` attribute on the element. If you are using `ngModel` on the select, you\n *   should not use `ngSelected` on the options, as `ngModel` will set the select value and\n *   selected options.\n * </div>\n *\n * @example\n    <example name=\"ng-selected\">\n      <file name=\"index.html\">\n        <label>Check me to select: <input type=\"checkbox\" ng-model=\"selected\"></label><br/>\n        <select aria-label=\"ngSelected demo\">\n          <option>Hello!</option>\n          <option id=\"greet\" ng-selected=\"selected\">Greetings!</option>\n        </select>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should select Greetings!', function() {\n          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();\n          element(by.model('selected')).click();\n          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element OPTION\n * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,\n *     then special attribute \"selected\" will be set on the element\n */\n\n/**\n * @ngdoc directive\n * @name ngOpen\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `open`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * ## A note about browser compatibility\n *\n * Internet Explorer and Edge do not support the `details` element, it is\n * recommended to use {@link ng.ngShow} and {@link ng.ngHide} instead.\n *\n * @example\n     <example name=\"ng-open\">\n       <file name=\"index.html\">\n         <label>Toggle details: <input type=\"checkbox\" ng-model=\"open\"></label><br/>\n         <details id=\"details\" ng-open=\"open\">\n            <summary>List</summary>\n            <ul>\n              <li>Apple</li>\n              <li>Orange</li>\n              <li>Durian</li>\n            </ul>\n         </details>\n       </file>\n       <file name=\"protractor.js\" type=\"protractor\">\n         it('should toggle open', function() {\n           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();\n           element(by.model('open')).click();\n           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();\n         });\n       </file>\n     </example>\n *\n * @element DETAILS\n * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,\n *     then special attribute \"open\" will be set on the element\n */\n\nvar ngAttributeAliasDirectives = {};\n\n// boolean attrs are evaluated\nforEach(BOOLEAN_ATTR, function(propName, attrName) {\n  // binding to multiple is not supported\n  if (propName === 'multiple') return;\n\n  function defaultLinkFn(scope, element, attr) {\n    scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {\n      attr.$set(attrName, !!value);\n    });\n  }\n\n  var normalized = directiveNormalize('ng-' + attrName);\n  var linkFn = defaultLinkFn;\n\n  if (propName === 'checked') {\n    linkFn = function(scope, element, attr) {\n      // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input\n      if (attr.ngModel !== attr[normalized]) {\n        defaultLinkFn(scope, element, attr);\n      }\n    };\n  }\n\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      restrict: 'A',\n      priority: 100,\n      link: linkFn\n    };\n  };\n});\n\n// aliased input attrs are evaluated\nforEach(ALIASED_ATTR, function(htmlAttr, ngAttr) {\n  ngAttributeAliasDirectives[ngAttr] = function() {\n    return {\n      priority: 100,\n      link: function(scope, element, attr) {\n        //special case ngPattern when a literal regular expression value\n        //is used as the expression (this way we don't have to watch anything).\n        if (ngAttr === 'ngPattern' && attr.ngPattern.charAt(0) === '/') {\n          var match = attr.ngPattern.match(REGEX_STRING_REGEXP);\n          if (match) {\n            attr.$set('ngPattern', new RegExp(match[1], match[2]));\n            return;\n          }\n        }\n\n        scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) {\n          attr.$set(ngAttr, value);\n        });\n      }\n    };\n  };\n});\n\n// ng-src, ng-srcset, ng-href are interpolated\nforEach(['src', 'srcset', 'href'], function(attrName) {\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = ['$sce', function($sce) {\n    return {\n      priority: 99, // it needs to run after the attributes are interpolated\n      link: function(scope, element, attr) {\n        var propName = attrName,\n            name = attrName;\n\n        if (attrName === 'href' &&\n            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {\n          name = 'xlinkHref';\n          attr.$attr[name] = 'xlink:href';\n          propName = null;\n        }\n\n        // We need to sanitize the url at least once, in case it is a constant\n        // non-interpolated attribute.\n        attr.$set(normalized, $sce.getTrustedMediaUrl(attr[normalized]));\n\n        attr.$observe(normalized, function(value) {\n          if (!value) {\n            if (attrName === 'href') {\n              attr.$set(name, null);\n            }\n            return;\n          }\n\n          attr.$set(name, value);\n\n          // Support: IE 9-11 only\n          // On IE, if \"ng:src\" directive declaration is used and \"src\" attribute doesn't exist\n          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need\n          // to set the property as well to achieve the desired effect.\n          // We use attr[attrName] value since $set might have sanitized the url.\n          if (msie && propName) element.prop(propName, attr[name]);\n        });\n      }\n    };\n  }];\n});\n\n/* global -nullFormCtrl, -PENDING_CLASS, -SUBMITTED_CLASS\n */\nvar nullFormCtrl = {\n  $addControl: noop,\n  $getControls: valueFn([]),\n  $$renameControl: nullFormRenameControl,\n  $removeControl: noop,\n  $setValidity: noop,\n  $setDirty: noop,\n  $setPristine: noop,\n  $setSubmitted: noop,\n  $$setSubmitted: noop\n},\nPENDING_CLASS = 'ng-pending',\nSUBMITTED_CLASS = 'ng-submitted';\n\nfunction nullFormRenameControl(control, name) {\n  control.$name = name;\n}\n\n/**\n * @ngdoc type\n * @name form.FormController\n *\n * @property {boolean} $pristine True if user has not interacted with the form yet.\n * @property {boolean} $dirty True if user has already interacted with the form.\n * @property {boolean} $valid True if all of the containing forms and controls are valid.\n * @property {boolean} $invalid True if at least one containing control or form is invalid.\n * @property {boolean} $submitted True if user has submitted the form even if its invalid.\n *\n * @property {Object} $pending An object hash, containing references to controls or forms with\n *  pending validators, where:\n *\n *  - keys are validations tokens (error names).\n *  - values are arrays of controls or forms that have a pending validator for the given error name.\n *\n * See {@link form.FormController#$error $error} for a list of built-in validation tokens.\n *\n * @property {Object} $error An object hash, containing references to controls or forms with failing\n *  validators, where:\n *\n *  - keys are validation tokens (error names),\n *  - values are arrays of controls or forms that have a failing validator for the given error name.\n *\n *  Built-in validation tokens:\n *  - `email`\n *  - `max`\n *  - `maxlength`\n *  - `min`\n *  - `minlength`\n *  - `number`\n *  - `pattern`\n *  - `required`\n *  - `url`\n *  - `date`\n *  - `datetimelocal`\n *  - `time`\n *  - `week`\n *  - `month`\n *\n * @description\n * `FormController` keeps track of all its controls and nested forms as well as the state of them,\n * such as being valid/invalid or dirty/pristine.\n *\n * Each {@link ng.directive:form form} directive creates an instance\n * of `FormController`.\n *\n */\n//asks for $scope to fool the BC controller module\nFormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate'];\nfunction FormController($element, $attrs, $scope, $animate, $interpolate) {\n  this.$$controls = [];\n\n  // init state\n  this.$error = {};\n  this.$$success = {};\n  this.$pending = undefined;\n  this.$name = $interpolate($attrs.name || $attrs.ngForm || '')($scope);\n  this.$dirty = false;\n  this.$pristine = true;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$submitted = false;\n  this.$$parentForm = nullFormCtrl;\n\n  this.$$element = $element;\n  this.$$animate = $animate;\n\n  setupValidity(this);\n}\n\nFormController.prototype = {\n  /**\n   * @ngdoc method\n   * @name form.FormController#$rollbackViewValue\n   *\n   * @description\n   * Rollback all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is typically needed by the reset button of\n   * a form that uses `ng-model-options` to pend updates.\n   */\n  $rollbackViewValue: function() {\n    forEach(this.$$controls, function(control) {\n      control.$rollbackViewValue();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$commitViewValue\n   *\n   * @description\n   * Commit all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  $commitViewValue: function() {\n    forEach(this.$$controls, function(control) {\n      control.$commitViewValue();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$addControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Register a control with the form. Input elements using ngModelController do this automatically\n   * when they are linked.\n   *\n   * Note that the current state of the control will not be reflected on the new parent form. This\n   * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine`\n   * state.\n   *\n   * However, if the method is used programmatically, for example by adding dynamically created controls,\n   * or controls that have been previously removed without destroying their corresponding DOM element,\n   * it's the developers responsibility to make sure the current state propagates to the parent form.\n   *\n   * For example, if an input control is added that is already `$dirty` and has `$error` properties,\n   * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form.\n   */\n  $addControl: function(control) {\n    // Breaking change - before, inputs whose name was \"hasOwnProperty\" were quietly ignored\n    // and not added to the scope.  Now we throw an error.\n    assertNotHasOwnProperty(control.$name, 'input');\n    this.$$controls.push(control);\n\n    if (control.$name) {\n      this[control.$name] = control;\n    }\n\n    control.$$parentForm = this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$getControls\n   * @returns {Array} the controls that are currently part of this form\n   *\n   * @description\n   * This method returns a **shallow copy** of the controls that are currently part of this form.\n   * The controls can be instances of {@link form.FormController `FormController`}\n   * ({@link ngForm \"child-forms\"}) and of {@link ngModel.NgModelController `NgModelController`}.\n   * If you need access to the controls of child-forms, you have to call `$getControls()`\n   * recursively on them.\n   * This can be used for example to iterate over all controls to validate them.\n   *\n   * The controls can be accessed normally, but adding to, or removing controls from the array has\n   * no effect on the form. Instead, use {@link form.FormController#$addControl `$addControl()`} and\n   * {@link form.FormController#$removeControl `$removeControl()`} for this use-case.\n   * Likewise, adding a control to, or removing a control from the form is not reflected\n   * in the shallow copy. That means you should get a fresh copy from `$getControls()` every time\n   * you need access to the controls.\n   */\n  $getControls: function() {\n    return shallowCopy(this.$$controls);\n  },\n\n  // Private API: rename a form control\n  $$renameControl: function(control, newName) {\n    var oldName = control.$name;\n\n    if (this[oldName] === control) {\n      delete this[oldName];\n    }\n    this[newName] = control;\n    control.$name = newName;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$removeControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Deregister a control from the form.\n   *\n   * Input elements using ngModelController do this automatically when they are destroyed.\n   *\n   * Note that only the removed control's validation state (`$errors`etc.) will be removed from the\n   * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be\n   * different from case to case. For example, removing the only `$dirty` control from a form may or\n   * may not mean that the form is still `$dirty`.\n   */\n  $removeControl: function(control) {\n    if (control.$name && this[control.$name] === control) {\n      delete this[control.$name];\n    }\n    forEach(this.$pending, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n    forEach(this.$error, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n    forEach(this.$$success, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n\n    arrayRemove(this.$$controls, control);\n    control.$$parentForm = nullFormCtrl;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setDirty\n   *\n   * @description\n   * Sets the form to a dirty state.\n   *\n   * This method can be called to add the 'ng-dirty' class and set the form to a dirty\n   * state (ng-dirty class). This method will also propagate to parent forms.\n   */\n  $setDirty: function() {\n    this.$$animate.removeClass(this.$$element, PRISTINE_CLASS);\n    this.$$animate.addClass(this.$$element, DIRTY_CLASS);\n    this.$dirty = true;\n    this.$pristine = false;\n    this.$$parentForm.$setDirty();\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setPristine\n   *\n   * @description\n   * Sets the form to its pristine state.\n   *\n   * This method sets the form's `$pristine` state to true, the `$dirty` state to false, removes\n   * the `ng-dirty` class and adds the `ng-pristine` class. Additionally, it sets the `$submitted`\n   * state to false.\n   *\n   * This method will also propagate to all the controls contained in this form.\n   *\n   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after\n   * saving or resetting it.\n   */\n  $setPristine: function() {\n    this.$$animate.setClass(this.$$element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS);\n    this.$dirty = false;\n    this.$pristine = true;\n    this.$submitted = false;\n    forEach(this.$$controls, function(control) {\n      control.$setPristine();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setUntouched\n   *\n   * @description\n   * Sets the form to its untouched state.\n   *\n   * This method can be called to remove the 'ng-touched' class and set the form controls to their\n   * untouched state (ng-untouched class).\n   *\n   * Setting a form controls back to their untouched state is often useful when setting the form\n   * back to its pristine state.\n   */\n  $setUntouched: function() {\n    forEach(this.$$controls, function(control) {\n      control.$setUntouched();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setSubmitted\n   *\n   * @description\n   * Sets the form to its `$submitted` state. This will also set `$submitted` on all child and\n   * parent forms of the form.\n   */\n  $setSubmitted: function() {\n    var rootForm = this;\n    while (rootForm.$$parentForm && (rootForm.$$parentForm !== nullFormCtrl)) {\n      rootForm = rootForm.$$parentForm;\n    }\n    rootForm.$$setSubmitted();\n  },\n\n  $$setSubmitted: function() {\n    this.$$animate.addClass(this.$$element, SUBMITTED_CLASS);\n    this.$submitted = true;\n    forEach(this.$$controls, function(control) {\n      if (control.$$setSubmitted) {\n        control.$$setSubmitted();\n      }\n    });\n  }\n};\n\n/**\n * @ngdoc method\n * @name form.FormController#$setValidity\n *\n * @description\n * Change the validity state of the form, and notify the parent form (if any).\n *\n * Application developers will rarely need to call this method directly. It is used internally, by\n * {@link ngModel.NgModelController#$setValidity NgModelController.$setValidity()}, to propagate a\n * control's validity state to the parent `FormController`.\n *\n * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be\n *        assigned to either `$error[validationErrorKey]` or `$pending[validationErrorKey]` (for\n *        unfulfilled `$asyncValidators`), so that it is available for data-binding. The\n *        `validationErrorKey` should be in camelCase and will get converted into dash-case for\n *        class name. Example: `myError` will result in `ng-valid-my-error` and\n *        `ng-invalid-my-error` classes and can be bound to as `{{ someForm.$error.myError }}`.\n * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending\n *        (undefined),  or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n *        Skipped is used by AngularJS when validators do not run because of parse errors and when\n *        `$asyncValidators` do not run because any of the `$validators` failed.\n * @param {NgModelController | FormController} controller - The controller whose validity state is\n *        triggering the change.\n */\naddSetValidityMethod({\n  clazz: FormController,\n  set: function(object, property, controller) {\n    var list = object[property];\n    if (!list) {\n      object[property] = [controller];\n    } else {\n      var index = list.indexOf(controller);\n      if (index === -1) {\n        list.push(controller);\n      }\n    }\n  },\n  unset: function(object, property, controller) {\n    var list = object[property];\n    if (!list) {\n      return;\n    }\n    arrayRemove(list, controller);\n    if (list.length === 0) {\n      delete object[property];\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngForm\n * @restrict EAC\n *\n * @description\n * Helper directive that makes it possible to create control groups inside a\n * {@link ng.directive:form `form`} directive.\n * These \"child forms\" can be used, for example, to determine the validity of a sub-group of\n * controls.\n *\n * <div class=\"alert alert-danger\">\n * **Note**: `ngForm` cannot be used as a replacement for `<form>`, because it lacks its\n * [built-in HTML functionality](https://html.spec.whatwg.org/#the-form-element).\n * Specifically, you cannot submit `ngForm` like a `<form>` tag. That means,\n * you cannot send data to the server with `ngForm`, or integrate it with\n * {@link ng.directive:ngSubmit `ngSubmit`}.\n * </div>\n *\n * @param {string=} ngForm|name Name of the form. If specified, the form controller will\n *                              be published into the related scope, under this name.\n *\n */\n\n /**\n * @ngdoc directive\n * @name form\n * @restrict E\n *\n * @description\n * Directive that instantiates\n * {@link form.FormController FormController}.\n *\n * If the `name` attribute is specified, the form controller is published onto the current scope under\n * this name.\n *\n * ## Alias: {@link ng.directive:ngForm `ngForm`}\n *\n * In AngularJS, forms can be nested. This means that the outer form is valid when all of the child\n * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so\n * AngularJS provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to\n * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group\n * of controls needs to be determined.\n *\n * ## CSS classes\n *  - `ng-valid` is set if the form is valid.\n *  - `ng-invalid` is set if the form is invalid.\n *  - `ng-pending` is set if the form is pending.\n *  - `ng-pristine` is set if the form is pristine.\n *  - `ng-dirty` is set if the form is dirty.\n *  - `ng-submitted` is set if the form was submitted.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n *\n * ## Submitting a form and preventing the default action\n *\n * Since the role of forms in client-side AngularJS applications is different than in classical\n * roundtrip apps, it is desirable for the browser not to translate the form submission into a full\n * page reload that sends the data to the server. Instead some javascript logic should be triggered\n * to handle the form submission in an application-specific way.\n *\n * For this reason, AngularJS prevents the default action (form submission to the server) unless the\n * `<form>` element has an `action` attribute specified.\n *\n * You can use one of the following two ways to specify what javascript method should be called when\n * a form is submitted:\n *\n * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element\n * - {@link ng.directive:ngClick ngClick} directive on the first\n  *  button or input field of type submit (input[type=submit])\n *\n * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}\n * or {@link ng.directive:ngClick ngClick} directives.\n * This is because of the following form submission rules in the HTML specification:\n *\n * - If a form has only one input field then hitting enter in this field triggers form submit\n * (`ngSubmit`)\n * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter\n * doesn't trigger submit\n * - if a form has one or more input fields and one or more buttons or input[type=submit] then\n * hitting enter in any of the input fields will trigger the click handler on the *first* button or\n * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)\n *\n * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is\n * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * @animations\n * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.\n * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any\n * other validations that are performed within the form. Animations in ngForm are similar to how\n * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well\n * as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style a form element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-form {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-form.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n    <example name=\"ng-form\" deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"formExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('formExample', [])\n           .controller('FormController', ['$scope', function($scope) {\n             $scope.userType = 'guest';\n           }]);\n       </script>\n       <style>\n        .my-form {\n          transition:all linear 0.5s;\n          background: transparent;\n        }\n        .my-form.ng-invalid {\n          background: red;\n        }\n       </style>\n       <form name=\"myForm\" ng-controller=\"FormController\" class=\"my-form\">\n         userType: <input name=\"input\" ng-model=\"userType\" required>\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">Required!</span><br>\n         <code>userType = {{userType}}</code><br>\n         <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br>\n         <code>myForm.input.$error = {{myForm.input.$error}}</code><br>\n         <code>myForm.$valid = {{myForm.$valid}}</code><br>\n         <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should initialize to model', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n\n          expect(userType.getText()).toContain('guest');\n          expect(valid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var userInput = element(by.model('userType'));\n\n          userInput.clear();\n          userInput.sendKeys('');\n\n          expect(userType.getText()).toEqual('userType =');\n          expect(valid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n *\n * @param {string=} name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n */\nvar formDirectiveFactory = function(isNgForm) {\n  return ['$timeout', '$parse', function($timeout, $parse) {\n    var formDirective = {\n      name: 'form',\n      restrict: isNgForm ? 'EAC' : 'E',\n      require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form\n      controller: FormController,\n      compile: function ngFormCompile(formElement, attr) {\n        // Setup initial state of the control\n        formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS);\n\n        var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false);\n\n        return {\n          pre: function ngFormPreLink(scope, formElement, attr, ctrls) {\n            var controller = ctrls[0];\n\n            // if `action` attr is not present on the form, prevent the default action (submission)\n            if (!('action' in attr)) {\n              // we can't use jq events because if a form is destroyed during submission the default\n              // action is not prevented. see #1238\n              //\n              // IE 9 is not affected because it doesn't fire a submit event and try to do a full\n              // page reload if the form was destroyed by submission of the form via a click handler\n              // on a button in the form. Looks like an IE9 specific bug.\n              var handleFormSubmission = function(event) {\n                scope.$apply(function() {\n                  controller.$commitViewValue();\n                  controller.$setSubmitted();\n                });\n\n                event.preventDefault();\n              };\n\n              formElement[0].addEventListener('submit', handleFormSubmission);\n\n              // unregister the preventDefault listener so that we don't not leak memory but in a\n              // way that will achieve the prevention of the default action.\n              formElement.on('$destroy', function() {\n                $timeout(function() {\n                  formElement[0].removeEventListener('submit', handleFormSubmission);\n                }, 0, false);\n              });\n            }\n\n            var parentFormCtrl = ctrls[1] || controller.$$parentForm;\n            parentFormCtrl.$addControl(controller);\n\n            var setter = nameAttr ? getSetter(controller.$name) : noop;\n\n            if (nameAttr) {\n              setter(scope, controller);\n              attr.$observe(nameAttr, function(newValue) {\n                if (controller.$name === newValue) return;\n                setter(scope, undefined);\n                controller.$$parentForm.$$renameControl(controller, newValue);\n                setter = getSetter(controller.$name);\n                setter(scope, controller);\n              });\n            }\n            formElement.on('$destroy', function() {\n              controller.$$parentForm.$removeControl(controller);\n              setter(scope, undefined);\n              extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards\n            });\n          }\n        };\n      }\n    };\n\n    return formDirective;\n\n    function getSetter(expression) {\n      if (expression === '') {\n        //create an assignable expression, so forms with an empty name can be renamed later\n        return $parse('this[\"\"]').assign;\n      }\n      return $parse(expression).assign || noop;\n    }\n  }];\n};\n\nvar formDirective = formDirectiveFactory();\nvar ngFormDirective = formDirectiveFactory(true);\n\n\n\n// helper methods\nfunction setupValidity(instance) {\n  instance.$$classCache = {};\n  instance.$$classCache[INVALID_CLASS] = !(instance.$$classCache[VALID_CLASS] = instance.$$element.hasClass(VALID_CLASS));\n}\nfunction addSetValidityMethod(context) {\n  var clazz = context.clazz,\n      set = context.set,\n      unset = context.unset;\n\n  clazz.prototype.$setValidity = function(validationErrorKey, state, controller) {\n    if (isUndefined(state)) {\n      createAndSet(this, '$pending', validationErrorKey, controller);\n    } else {\n      unsetAndCleanup(this, '$pending', validationErrorKey, controller);\n    }\n    if (!isBoolean(state)) {\n      unset(this.$error, validationErrorKey, controller);\n      unset(this.$$success, validationErrorKey, controller);\n    } else {\n      if (state) {\n        unset(this.$error, validationErrorKey, controller);\n        set(this.$$success, validationErrorKey, controller);\n      } else {\n        set(this.$error, validationErrorKey, controller);\n        unset(this.$$success, validationErrorKey, controller);\n      }\n    }\n    if (this.$pending) {\n      cachedToggleClass(this, PENDING_CLASS, true);\n      this.$valid = this.$invalid = undefined;\n      toggleValidationCss(this, '', null);\n    } else {\n      cachedToggleClass(this, PENDING_CLASS, false);\n      this.$valid = isObjectEmpty(this.$error);\n      this.$invalid = !this.$valid;\n      toggleValidationCss(this, '', this.$valid);\n    }\n\n    // re-read the state as the set/unset methods could have\n    // combined state in this.$error[validationError] (used for forms),\n    // where setting/unsetting only increments/decrements the value,\n    // and does not replace it.\n    var combinedState;\n    if (this.$pending && this.$pending[validationErrorKey]) {\n      combinedState = undefined;\n    } else if (this.$error[validationErrorKey]) {\n      combinedState = false;\n    } else if (this.$$success[validationErrorKey]) {\n      combinedState = true;\n    } else {\n      combinedState = null;\n    }\n\n    toggleValidationCss(this, validationErrorKey, combinedState);\n    this.$$parentForm.$setValidity(validationErrorKey, combinedState, this);\n  };\n\n  function createAndSet(ctrl, name, value, controller) {\n    if (!ctrl[name]) {\n      ctrl[name] = {};\n    }\n    set(ctrl[name], value, controller);\n  }\n\n  function unsetAndCleanup(ctrl, name, value, controller) {\n    if (ctrl[name]) {\n      unset(ctrl[name], value, controller);\n    }\n    if (isObjectEmpty(ctrl[name])) {\n      ctrl[name] = undefined;\n    }\n  }\n\n  function cachedToggleClass(ctrl, className, switchValue) {\n    if (switchValue && !ctrl.$$classCache[className]) {\n      ctrl.$$animate.addClass(ctrl.$$element, className);\n      ctrl.$$classCache[className] = true;\n    } else if (!switchValue && ctrl.$$classCache[className]) {\n      ctrl.$$animate.removeClass(ctrl.$$element, className);\n      ctrl.$$classCache[className] = false;\n    }\n  }\n\n  function toggleValidationCss(ctrl, validationErrorKey, isValid) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n\n    cachedToggleClass(ctrl, VALID_CLASS + validationErrorKey, isValid === true);\n    cachedToggleClass(ctrl, INVALID_CLASS + validationErrorKey, isValid === false);\n  }\n}\n\nfunction isObjectEmpty(obj) {\n  if (obj) {\n    for (var prop in obj) {\n      if (obj.hasOwnProperty(prop)) {\n        return false;\n      }\n    }\n  }\n  return true;\n}\n\n/* global\n  VALID_CLASS: false,\n  INVALID_CLASS: false,\n  PRISTINE_CLASS: false,\n  DIRTY_CLASS: false,\n  ngModelMinErr: false\n*/\n\n// Regex code was initially obtained from SO prior to modification: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231\nvar ISO_DATE_REGEXP = /^\\d{4,}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\d\\.\\d+(?:[+-][0-2]\\d:[0-5]\\d|Z)$/;\n// See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987)\n// Note: We are being more lenient, because browsers are too.\n//   1. Scheme\n//   2. Slashes\n//   3. Username\n//   4. Password\n//   5. Hostname\n//   6. Port\n//   7. Path\n//   8. Query\n//   9. Fragment\n//                 1111111111111111 222   333333    44444        55555555555555555555555     666     77777777     8888888     999\nvar URL_REGEXP = /^[a-z][a-z\\d.+-]*:\\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\\s:/?#]+|\\[[a-f\\d:]+])(?::\\d+)?(?:\\/[^?#]*)?(?:\\?[^#]*)?(?:#.*)?$/i;\n// eslint-disable-next-line max-len\nvar EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+(\\.[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+)*@[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?(\\.[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?)*$/;\nvar NUMBER_REGEXP = /^\\s*(-|\\+)?(\\d+|(\\d*(\\.\\d*)))([eE][+-]?\\d+)?\\s*$/;\nvar DATE_REGEXP = /^(\\d{4,})-(\\d{2})-(\\d{2})$/;\nvar DATETIMELOCAL_REGEXP = /^(\\d{4,})-(\\d\\d)-(\\d\\d)T(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\nvar WEEK_REGEXP = /^(\\d{4,})-W(\\d\\d)$/;\nvar MONTH_REGEXP = /^(\\d{4,})-(\\d\\d)$/;\nvar TIME_REGEXP = /^(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\n\nvar PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown';\nvar PARTIAL_VALIDATION_TYPES = createMap();\nforEach('date,datetime-local,month,time,week'.split(','), function(type) {\n  PARTIAL_VALIDATION_TYPES[type] = true;\n});\n\nvar inputType = {\n\n  /**\n   * @ngdoc input\n   * @name input[text]\n   *\n   * @description\n   * Standard HTML text input with AngularJS data binding, inherited by most of the `input` elements.\n   *\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Adds `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n   *    This parameter is ignored for input[type=password] controls, which will never trim the\n   *    input.\n   *\n   * @example\n      <example name=\"text-input-directive\" module=\"textInputExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('textInputExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 text: 'guest',\n                 word: /^\\s*\\w*\\s*$/\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Single word:\n             <input type=\"text\" name=\"input\" ng-model=\"example.text\"\n                    ng-pattern=\"example.word\" required ng-trim=\"false\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.pattern\">\n               Single word only!</span>\n           </div>\n           <code>text = {{example.text}}</code><br/>\n           <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br/>\n           <code>myForm.input.$error = {{myForm.input.$error}}</code><br/>\n           <code>myForm.$valid = {{myForm.$valid}}</code><br/>\n           <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('example.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('guest');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if multi word', function() {\n            input.clear();\n            input.sendKeys('hello world');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'text': textInputType,\n\n    /**\n     * @ngdoc input\n     * @name input[date]\n     *\n     * @description\n     * Input with date validation and transformation. In browsers that do not yet support\n     * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601\n     * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many\n     * modern browsers do not yet support this input type, it is important to provide cues to users on the\n     * expected input format via a placeholder or label.\n     *\n     * The model must always be a Date object, otherwise AngularJS will throw an error.\n     * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n     *\n     * The timezone to be used to read/write the `Date` instance in the model can be defined using\n     * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n     *\n     * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n     * @param {string=} name Property name of the form under which the control is published.\n     * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n     *   valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `min=\"{{minDate | date:'yyyy-MM-dd'}}\"`). Note that `min` will also add native HTML5\n     *   constraint validation.\n     * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n     *   a valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `max=\"{{maxDate | date:'yyyy-MM-dd'}}\"`). Note that `max` will also add native HTML5\n     *   constraint validation.\n     * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO date string\n     *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n     * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO date string\n     *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n     * @param {string=} required Sets `required` validation error key if the value is not entered.\n     * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n     *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n     *    `required` when you want to data-bind to the `required` attribute.\n     * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n     *    interaction with the input element.\n     *\n     * @example\n     <example name=\"date-input-directive\" module=\"dateInputExample\">\n     <file name=\"index.html\">\n       <script>\n          angular.module('dateInputExample', [])\n            .controller('DateController', ['$scope', function($scope) {\n              $scope.example = {\n                value: new Date(2013, 9, 22)\n              };\n            }]);\n       </script>\n       <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n          <label for=\"exampleInput\">Pick a date in 2013:</label>\n          <input type=\"date\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n              placeholder=\"yyyy-MM-dd\" min=\"2013-01-01\" max=\"2013-12-31\" required />\n          <div role=\"alert\">\n            <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                Required!</span>\n            <span class=\"error\" ng-show=\"myForm.input.$error.date\">\n                Not a valid date!</span>\n           </div>\n           <tt>value = {{example.value | date: \"yyyy-MM-dd\"}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n       </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        var value = element(by.binding('example.value | date: \"yyyy-MM-dd\"'));\n        var valid = element(by.binding('myForm.input.$valid'));\n\n        // currently protractor/webdriver does not support\n        // sending keys to all known HTML5 input controls\n        // for various browsers (see https://github.com/angular/protractor/issues/562).\n        function setInput(val) {\n          // set the value of the element and force validation.\n          var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n          \"ipt.value = '\" + val + \"';\" +\n          \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n          browser.executeScript(scr);\n        }\n\n        it('should initialize to model', function() {\n          expect(value.getText()).toContain('2013-10-22');\n          expect(valid.getText()).toContain('myForm.input.$valid = true');\n        });\n\n        it('should be invalid if empty', function() {\n          setInput('');\n          expect(value.getText()).toEqual('value =');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n\n        it('should be invalid if over max', function() {\n          setInput('2015-01-01');\n          expect(value.getText()).toContain('');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n     </file>\n     </example>\n     */\n  'date': createDateInputType('date', DATE_REGEXP,\n         createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']),\n         'yyyy-MM-dd'),\n\n   /**\n    * @ngdoc input\n    * @name input[datetime-local]\n    *\n    * @description\n    * Input with datetime validation and transformation. In browsers that do not yet support\n    * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.\n    *\n    * The model must always be a Date object, otherwise AngularJS will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * The format of the displayed time can be adjusted with the\n    * {@link ng.directive:ngModelOptions#ngModelOptions-arguments ngModelOptions} `timeSecondsFormat`\n    * and `timeStripZeroSeconds`.\n    *\n    * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `min=\"{{minDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `min` will also add native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `max=\"{{maxDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `max` will also add native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation error key to the Date / ISO datetime string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation error key to the Date / ISO datetime string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"datetimelocal-input-directive\" module=\"dateExample\">\n    <file name=\"index.html\">\n      <script>\n        angular.module('dateExample', [])\n          .controller('DateController', ['$scope', function($scope) {\n            $scope.example = {\n              value: new Date(2010, 11, 28, 14, 57)\n            };\n          }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a date between in 2013:</label>\n        <input type=\"datetime-local\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"yyyy-MM-ddTHH:mm:ss\" min=\"2001-01-01T00:00:00\" max=\"2013-12-31T00:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.datetimelocal\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-MM-ddTHH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM-ddTHH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2010-12-28T14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01-01T23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP,\n      createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']),\n      'yyyy-MM-ddTHH:mm:ss.sss'),\n\n  /**\n   * @ngdoc input\n   * @name input[time]\n   *\n   * @description\n   * Input with time validation and transformation. In browsers that do not yet support\n   * the HTML5 time input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a\n   * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.\n   *\n   * The model must always be a Date object, otherwise AngularJS will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions#ngModelOptions-arguments ngModelOptions}. By default,\n   * this is the timezone of the browser.\n   *\n   * The format of the displayed time can be adjusted with the\n   * {@link ng.directive:ngModelOptions#ngModelOptions-arguments ngModelOptions} `timeSecondsFormat`\n   * and `timeStripZeroSeconds`.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minTime | date:'HH:mm:ss'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxTime | date:'HH:mm:ss'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO time string the\n   *   `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO time string the\n   *   `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"time-input-directive\" module=\"timeExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('timeExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(1970, 0, 1, 14, 57, 0)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a time between 8am and 5pm:</label>\n        <input type=\"time\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"HH:mm:ss\" min=\"08:00:00\" max=\"17:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.time\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"HH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"HH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'time': createDateInputType('time', TIME_REGEXP,\n      createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']),\n     'HH:mm:ss.sss'),\n\n   /**\n    * @ngdoc input\n    * @name input[week]\n    *\n    * @description\n    * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support\n    * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * week format (yyyy-W##), for example: `2013-W02`.\n    *\n    * The model must always be a Date object, otherwise AngularJS will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The value of the resulting Date object will be set to Thursday at 00:00:00 of the requested week,\n    * due to ISO-8601 week numbering standards. Information on ISO's system for numbering the weeks of the\n    * year can be found at: https://en.wikipedia.org/wiki/ISO_8601#Week_dates\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `min=\"{{minWeek | date:'yyyy-Www'}}\"`). Note that `min` will also add\n    *   native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `max=\"{{maxWeek | date:'yyyy-Www'}}\"`). Note that `max` will also add\n    *   native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"week-input-directive\" module=\"weekExample\">\n    <file name=\"index.html\">\n      <script>\n      angular.module('weekExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 0, 3)\n          };\n        }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label>Pick a date between in 2013:\n          <input id=\"exampleInput\" type=\"week\" name=\"input\" ng-model=\"example.value\"\n                 placeholder=\"YYYY-W##\" min=\"2012-W32\"\n                 max=\"2013-W52\" required />\n        </label>\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.week\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-Www\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-Www\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-W01');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-W01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'),\n\n  /**\n   * @ngdoc input\n   * @name input[month]\n   *\n   * @description\n   * Input with month validation and transformation. In browsers that do not yet support\n   * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * month format (yyyy-MM), for example: `2009-01`.\n   *\n   * The model must always be a Date object, otherwise AngularJS will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   * If the model is not set to the first of the month, the next view to model update will set it\n   * to the first of the month.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minMonth | date:'yyyy-MM'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxMonth | date:'yyyy-MM'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n   *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n   *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"month-input-directive\" module=\"monthExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('monthExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 9, 1)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n       <label for=\"exampleInput\">Pick a month in 2013:</label>\n       <input id=\"exampleInput\" type=\"month\" name=\"input\" ng-model=\"example.value\"\n          placeholder=\"yyyy-MM\" min=\"2013-01\" max=\"2013-12\" required />\n       <div role=\"alert\">\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n         <span class=\"error\" ng-show=\"myForm.input.$error.month\">\n            Not a valid month!</span>\n       </div>\n       <tt>value = {{example.value | date: \"yyyy-MM\"}}</tt><br/>\n       <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n       <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n       <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n       <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-10');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'month': createDateInputType('month', MONTH_REGEXP,\n     createDateParser(MONTH_REGEXP, ['yyyy', 'MM']),\n     'yyyy-MM'),\n\n  /**\n   * @ngdoc input\n   * @name input[number]\n   *\n   * @description\n   * Text input with number validation and transformation. Sets the `number` validation\n   * error if not a valid number.\n   *\n   * <div class=\"alert alert-warning\">\n   * The model must always be of type `number` otherwise AngularJS will throw an error.\n   * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt}\n   * error docs for more information and an example of how to convert your model if necessary.\n   * </div>\n   *\n   *\n   *\n   * @knownIssue\n   *\n   * ### HTML5 constraint validation and `allowInvalid`\n   *\n   * In browsers that follow the\n   * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29),\n   * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}.\n   * If a non-number is entered in the input, the browser will report the value as an empty string,\n   * which means the view / model values in `ngModel` and subsequently the scope value\n   * will also be an empty string.\n   *\n   * @knownIssue\n   *\n   * ### Large numbers and `step` validation\n   *\n   * The `step` validation will not work correctly for very large numbers (e.g. 9999999999) due to\n   * Javascript's arithmetic limitations. If you need to handle large numbers, purpose-built\n   * libraries (e.g. https://github.com/MikeMcl/big.js/), can be included into AngularJS by\n   * {@link guide/forms#modifying-built-in-validators overwriting the validators}\n   * for `number` and / or `step`, or by {@link guide/forms#custom-validation applying custom validators}\n   * to an `input[text]` element. The source for `input[number]` type can be used as a starting\n   * point for both implementations.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *    Can be interpolated.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *    Can be interpolated.\n   * @param {string=} ngMin Like `min`, sets the `min` validation error key if the value entered is less than `ngMin`,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} ngMax Like `max`, sets the `max` validation error key if the value entered is greater than `ngMax`,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} step Sets the `step` validation error key if the value entered does not fit the `step` constraint.\n   *    Can be interpolated.\n   * @param {string=} ngStep Like `step`, sets the `step` validation error key if the value entered does not fit the `ngStep` constraint,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"number-input-directive\" module=\"numberExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('numberExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 value: 12\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Number:\n             <input type=\"number\" name=\"input\" ng-model=\"example.value\"\n                    min=\"0\" max=\"99\" required>\n          </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.number\">\n               Not valid number!</span>\n           </div>\n           <tt>value = {{example.value}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var value = element(by.binding('example.value'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.value'));\n\n          it('should initialize to model', function() {\n            expect(value.getText()).toContain('12');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if over max', function() {\n            input.clear();\n            input.sendKeys('123');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'number': numberInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[url]\n   *\n   * @description\n   * Text input with URL validation. Sets the `url` validation error key if the content is not a\n   * valid URL.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[url]` uses a regex to validate urls that is derived from the regex\n   * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify\n   * the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"url-input-directive\" module=\"urlExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('urlExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.url = {\n                 text: 'http://google.com'\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>URL:\n             <input type=\"url\" name=\"input\" ng-model=\"url.text\" required>\n           <label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.url\">\n               Not valid url!</span>\n           </div>\n           <tt>text = {{url.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('url.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('url.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('http://google.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not url', function() {\n            input.clear();\n            input.sendKeys('box');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'url': urlInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[email]\n   *\n   * @description\n   * Text input with email validation. Sets the `email` validation error key if not a valid email\n   * address.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex\n   * used in Chromium, which may not fulfill your app's requirements.\n   * If you need stricter (e.g. requiring a top-level domain), or more relaxed validation\n   * (e.g. allowing IPv6 address literals) you can use `ng-pattern` or\n   * modify the built-in validators (see the {@link guide/forms Forms guide}).\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"email-input-directive\" module=\"emailExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('emailExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.email = {\n                 text: 'me@example.com'\n               };\n             }]);\n         </script>\n           <form name=\"myForm\" ng-controller=\"ExampleController\">\n             <label>Email:\n               <input type=\"email\" name=\"input\" ng-model=\"email.text\" required>\n             </label>\n             <div role=\"alert\">\n               <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                 Required!</span>\n               <span class=\"error\" ng-show=\"myForm.input.$error.email\">\n                 Not valid email!</span>\n             </div>\n             <tt>text = {{email.text}}</tt><br/>\n             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>\n           </form>\n         </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('email.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('email.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('me@example.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not email', function() {\n            input.clear();\n            input.sendKeys('xxx');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'email': emailInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[radio]\n   *\n   * @description\n   * HTML radio button.\n   *\n   * **Note:**<br>\n   * All inputs controlled by {@link ngModel ngModel} (including those of type `radio`) will use the\n   * value of their `name` attribute to determine the property under which their\n   * {@link ngModel.NgModelController NgModelController} will be published on the parent\n   * {@link form.FormController FormController}. Thus, if you use the same `name` for multiple\n   * inputs of a form (e.g. a group of radio inputs), only _one_ `NgModelController` will be\n   * published on the parent `FormController` under that name. The rest of the controllers will\n   * continue to work as expected, but you won't be able to access them as properties on the parent\n   * `FormController`.\n   *\n   * <div class=\"alert alert-info\">\n   *   <p>\n   *     In plain HTML forms, the `name` attribute is used to identify groups of radio inputs, so\n   *     that the browser can manage their state (checked/unchecked) based on the state of other\n   *     inputs in the same group.\n   *   </p>\n   *   <p>\n   *     In AngularJS forms, this is not necessary. The input's state will be updated based on the\n   *     value of the underlying model data.\n   *   </p>\n   * </div>\n   *\n   * <div class=\"alert alert-success\">\n   *   If you omit the `name` attribute on a radio input, `ngModel` will automatically assign it a\n   *   unique name.\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string} value The value to which the `ngModel` expression should be set when selected.\n   *    Note that `value` only supports `string` values, i.e. the scope model needs to be a string,\n   *    too. Use `ngValue` if you need complex models (`number`, `object`, ...).\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {string} ngValue AngularJS expression to which `ngModel` will be be set when the radio\n   *    is selected. Should be used instead of the `value` attribute if you need\n   *    a non-string `ngModel` (`boolean`, `array`, ...).\n   *\n   * @example\n      <example name=\"radio-input-directive\" module=\"radioExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('radioExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.color = {\n                 name: 'blue'\n               };\n               $scope.specialValue = {\n                 \"id\": \"12345\",\n                 \"value\": \"green\"\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"red\">\n             Red\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" ng-value=\"specialValue\">\n             Green\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"blue\">\n             Blue\n           </label><br/>\n           <tt>color = {{color.name | json}}</tt><br/>\n          </form>\n          Note that `ng-value=\"specialValue\"` sets radio item's value to be the value of `$scope.specialValue`.\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var inputs = element.all(by.model('color.name'));\n            var color = element(by.binding('color.name'));\n\n            expect(color.getText()).toContain('blue');\n\n            inputs.get(0).click();\n            expect(color.getText()).toContain('red');\n\n            inputs.get(1).click();\n            expect(color.getText()).toContain('green');\n          });\n        </file>\n      </example>\n   */\n  'radio': radioInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[range]\n   *\n   * @description\n   * Native range input with validation and transformation.\n   *\n   * The model for the range input must always be a `Number`.\n   *\n   * IE9 and other browsers that do not support the `range` type fall back\n   * to a text input without any default values for `min`, `max` and `step`. Model binding,\n   * validation and number parsing are nevertheless supported.\n   *\n   * Browsers that support range (latest Chrome, Safari, Firefox, Edge) treat `input[range]`\n   * in a way that never allows the input to hold an invalid value. That means:\n   * - any non-numerical value is set to `(max + min) / 2`.\n   * - any numerical value that is less than the current min val, or greater than the current max val\n   * is set to the min / max val respectively.\n   * - additionally, the current `step` is respected, so the nearest value that satisfies a step\n   * is used.\n   *\n   * See the [HTML Spec on input[type=range]](https://www.w3.org/TR/html5/forms.html#range-state-(type=range))\n   * for more info.\n   *\n   * This has the following consequences for AngularJS:\n   *\n   * Since the element value should always reflect the current model value, a range input\n   * will set the bound ngModel expression to the value that the browser has set for the\n   * input element. For example, in the following input `<input type=\"range\" ng-model=\"model.value\">`,\n   * if the application sets `model.value = null`, the browser will set the input to `'50'`.\n   * AngularJS will then set the model to `50`, to prevent input and model value being out of sync.\n   *\n   * That means the model for range will immediately be set to `50` after `ngModel` has been\n   * initialized. It also means a range input can never have the required error.\n   *\n   * This does not only affect changes to the model value, but also to the values of the `min`,\n   * `max`, and `step` attributes. When these change in a way that will cause the browser to modify\n   * the input value, AngularJS will also update the model value.\n   *\n   * Automatic value adjustment also means that a range input element can never have the `required`,\n   * `min`, or `max` errors.\n   *\n   * However, `step` is currently only fully implemented by Firefox. Other browsers have problems\n   * when the step value changes dynamically - they do not adjust the element value correctly, but\n   * instead may set the `stepMismatch` error. If that's the case, the AngularJS will set the `step`\n   * error on the input, and set the model to `undefined`.\n   *\n   * Note that `input[range]` is not compatible with`ngMax`, `ngMin`, and `ngStep`, because they do\n   * not set the `min` and `max` attributes, which means that the browser won't automatically adjust\n   * the input value based on their values, and will always assume min = 0, max = 100, and step = 1.\n   *\n   * @param {string}  ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation to ensure that the value entered is greater\n   *                  than `min`. Can be interpolated.\n   * @param {string=} max Sets the `max` validation to ensure that the value entered is less than `max`.\n   *                  Can be interpolated.\n   * @param {string=} step Sets the `step` validation to ensure that the value entered matches the `step`\n   *                  Can be interpolated.\n   * @param {expression=} ngChange AngularJS expression to be executed when the ngModel value changes due\n   *                      to user interaction with the input element.\n   * @param {expression=} ngChecked If the expression is truthy, then the `checked` attribute will be set on the\n   *                      element. **Note** : `ngChecked` should not be used alongside `ngModel`.\n   *                      Checkout {@link ng.directive:ngChecked ngChecked} for usage.\n   *\n   * @example\n      <example name=\"range-input-directive\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n\n            Model as range: <input type=\"range\" name=\"range\" ng-model=\"value\" min=\"{{min}}\"  max=\"{{max}}\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   * ## Range Input with ngMin & ngMax attributes\n\n   * @example\n      <example name=\"range-input-directive-ng\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n            Model as range: <input type=\"range\" name=\"range\" ng-model=\"value\" ng-min=\"min\" ng-max=\"max\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   */\n  'range': rangeInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[checkbox]\n   *\n   * @description\n   * HTML checkbox.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {expression=} ngTrueValue The value to which the expression should be set when selected.\n   * @param {expression=} ngFalseValue The value to which the expression should be set when not selected.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"checkbox-input-directive\" module=\"checkboxExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('checkboxExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.checkboxModel = {\n                value1 : true,\n                value2 : 'YES'\n              };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Value1:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value1\">\n           </label><br/>\n           <label>Value2:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value2\"\n                    ng-true-value=\"'YES'\" ng-false-value=\"'NO'\">\n            </label><br/>\n           <tt>value1 = {{checkboxModel.value1}}</tt><br/>\n           <tt>value2 = {{checkboxModel.value2}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var value1 = element(by.binding('checkboxModel.value1'));\n            var value2 = element(by.binding('checkboxModel.value2'));\n\n            expect(value1.getText()).toContain('true');\n            expect(value2.getText()).toContain('YES');\n\n            element(by.model('checkboxModel.value1')).click();\n            element(by.model('checkboxModel.value2')).click();\n\n            expect(value1.getText()).toContain('false');\n            expect(value2.getText()).toContain('NO');\n          });\n        </file>\n      </example>\n   */\n  'checkbox': checkboxInputType,\n\n  'hidden': noop,\n  'button': noop,\n  'submit': noop,\n  'reset': noop,\n  'file': noop\n};\n\nfunction stringBasedInputType(ctrl) {\n  ctrl.$formatters.push(function(value) {\n    return ctrl.$isEmpty(value) ? value : value.toString();\n  });\n}\n\nfunction textInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n}\n\nfunction baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  var type = lowercase(element[0].type);\n\n  // In composition mode, users are still inputting intermediate text buffer,\n  // hold the listener until composition is done.\n  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent\n  if (!$sniffer.android) {\n    var composing = false;\n\n    element.on('compositionstart', function() {\n      composing = true;\n    });\n\n    // Support: IE9+\n    element.on('compositionupdate', function(ev) {\n      // End composition when ev.data is empty string on 'compositionupdate' event.\n      // When the input de-focusses (e.g. by clicking away), IE triggers 'compositionupdate'\n      // instead of 'compositionend'.\n      if (isUndefined(ev.data) || ev.data === '') {\n        composing = false;\n      }\n    });\n\n    element.on('compositionend', function() {\n      composing = false;\n      listener();\n    });\n  }\n\n  var timeout;\n\n  var listener = function(ev) {\n    if (timeout) {\n      $browser.defer.cancel(timeout);\n      timeout = null;\n    }\n    if (composing) return;\n    var value = element.val(),\n        event = ev && ev.type;\n\n    // By default we will trim the value\n    // If the attribute ng-trim exists we will avoid trimming\n    // If input type is 'password', the value is never trimmed\n    if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) {\n      value = trim(value);\n    }\n\n    // If a control is suffering from bad input (due to native validators), browsers discard its\n    // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the\n    // control's value is the same empty value twice in a row.\n    if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) {\n      ctrl.$setViewValue(value, event);\n    }\n  };\n\n  // if the browser does support \"input\" event, we are fine - except on IE9 which doesn't fire the\n  // input event on backspace, delete or cut\n  if ($sniffer.hasEvent('input')) {\n    element.on('input', listener);\n  } else {\n    var deferListener = function(ev, input, origValue) {\n      if (!timeout) {\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (!input || input.value !== origValue) {\n            listener(ev);\n          }\n        });\n      }\n    };\n\n    element.on('keydown', /** @this */ function(event) {\n      var key = event.keyCode;\n\n      // ignore\n      //    command            modifiers                   arrows\n      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;\n\n      deferListener(event, this, this.value);\n    });\n\n    // if user modifies input value using context menu in IE, we need \"paste\", \"cut\" and \"drop\" events to catch it\n    if ($sniffer.hasEvent('paste')) {\n      element.on('paste cut drop', deferListener);\n    }\n  }\n\n  // if user paste into input using mouse on older browser\n  // or form autocomplete on newer browser, we need \"change\" event to catch it\n  element.on('change', listener);\n\n  // Some native input types (date-family) have the ability to change validity without\n  // firing any input/change events.\n  // For these event types, when native validators are present and the browser supports the type,\n  // check for validity changes on various DOM events.\n  if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) {\n    element.on(PARTIAL_VALIDATION_EVENTS, /** @this */ function(ev) {\n      if (!timeout) {\n        var validity = this[VALIDITY_STATE_PROPERTY];\n        var origBadInput = validity.badInput;\n        var origTypeMismatch = validity.typeMismatch;\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) {\n            listener(ev);\n          }\n        });\n      }\n    });\n  }\n\n  ctrl.$render = function() {\n    // Workaround for Firefox validation #12102.\n    var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue;\n    if (element.val() !== value) {\n      element.val(value);\n    }\n  };\n}\n\nfunction weekParser(isoWeek, existingDate) {\n  if (isDate(isoWeek)) {\n    return isoWeek;\n  }\n\n  if (isString(isoWeek)) {\n    WEEK_REGEXP.lastIndex = 0;\n    var parts = WEEK_REGEXP.exec(isoWeek);\n    if (parts) {\n      var year = +parts[1],\n          week = +parts[2],\n          hours = 0,\n          minutes = 0,\n          seconds = 0,\n          milliseconds = 0,\n          firstThurs = getFirstThursdayOfYear(year),\n          addDays = (week - 1) * 7;\n\n      if (existingDate) {\n        hours = existingDate.getHours();\n        minutes = existingDate.getMinutes();\n        seconds = existingDate.getSeconds();\n        milliseconds = existingDate.getMilliseconds();\n      }\n\n      return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds);\n    }\n  }\n\n  return NaN;\n}\n\nfunction createDateParser(regexp, mapping) {\n  return function(iso, previousDate) {\n    var parts, map;\n\n    if (isDate(iso)) {\n      return iso;\n    }\n\n    if (isString(iso)) {\n      // When a date is JSON'ified to wraps itself inside of an extra\n      // set of double quotes. This makes the date parsing code unable\n      // to match the date string and parse it as a date.\n      if (iso.charAt(0) === '\"' && iso.charAt(iso.length - 1) === '\"') {\n        iso = iso.substring(1, iso.length - 1);\n      }\n      if (ISO_DATE_REGEXP.test(iso)) {\n        return new Date(iso);\n      }\n      regexp.lastIndex = 0;\n      parts = regexp.exec(iso);\n\n      if (parts) {\n        parts.shift();\n        if (previousDate) {\n          map = {\n            yyyy: previousDate.getFullYear(),\n            MM: previousDate.getMonth() + 1,\n            dd: previousDate.getDate(),\n            HH: previousDate.getHours(),\n            mm: previousDate.getMinutes(),\n            ss: previousDate.getSeconds(),\n            sss: previousDate.getMilliseconds() / 1000\n          };\n        } else {\n          map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 };\n        }\n\n        forEach(parts, function(part, index) {\n          if (index < mapping.length) {\n            map[mapping[index]] = +part;\n          }\n        });\n\n        var date = new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0);\n        if (map.yyyy < 100) {\n          // In the constructor, 2-digit years map to 1900-1999.\n          // Use `setFullYear()` to set the correct year.\n          date.setFullYear(map.yyyy);\n        }\n\n        return date;\n      }\n    }\n\n    return NaN;\n  };\n}\n\nfunction createDateInputType(type, regexp, parseDate, format) {\n  return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n    badInputChecker(scope, element, attr, ctrl, type);\n    baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n    var isTimeType = type === 'time' || type === 'datetimelocal';\n    var previousDate;\n    var previousTimezone;\n\n    ctrl.$parsers.push(function(value) {\n      if (ctrl.$isEmpty(value)) return null;\n\n      if (regexp.test(value)) {\n        // Note: We cannot read ctrl.$modelValue, as there might be a different\n        // parser/formatter in the processing chain so that the model\n        // contains some different data format!\n        return parseDateAndConvertTimeZoneToLocal(value, previousDate);\n      }\n      ctrl.$$parserName = type;\n      return undefined;\n    });\n\n    ctrl.$formatters.push(function(value) {\n      if (value && !isDate(value)) {\n        throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value);\n      }\n      if (isValidDate(value)) {\n        previousDate = value;\n        var timezone = ctrl.$options.getOption('timezone');\n\n        if (timezone) {\n          previousTimezone = timezone;\n          previousDate = convertTimezoneToLocal(previousDate, timezone, true);\n        }\n\n        return formatter(value, timezone);\n      } else {\n        previousDate = null;\n        previousTimezone = null;\n        return '';\n      }\n    });\n\n    if (isDefined(attr.min) || attr.ngMin) {\n      var minVal = attr.min || $parse(attr.ngMin)(scope);\n      var parsedMinVal = parseObservedDateValue(minVal);\n\n      ctrl.$validators.min = function(value) {\n        return !isValidDate(value) || isUndefined(parsedMinVal) || parseDate(value) >= parsedMinVal;\n      };\n      attr.$observe('min', function(val) {\n        if (val !== minVal) {\n          parsedMinVal = parseObservedDateValue(val);\n          minVal = val;\n          ctrl.$validate();\n        }\n      });\n    }\n\n    if (isDefined(attr.max) || attr.ngMax) {\n      var maxVal = attr.max || $parse(attr.ngMax)(scope);\n      var parsedMaxVal = parseObservedDateValue(maxVal);\n\n      ctrl.$validators.max = function(value) {\n        return !isValidDate(value) || isUndefined(parsedMaxVal) || parseDate(value) <= parsedMaxVal;\n      };\n      attr.$observe('max', function(val) {\n        if (val !== maxVal) {\n          parsedMaxVal = parseObservedDateValue(val);\n          maxVal = val;\n          ctrl.$validate();\n        }\n      });\n    }\n\n    function isValidDate(value) {\n      // Invalid Date: getTime() returns NaN\n      return value && !(value.getTime && value.getTime() !== value.getTime());\n    }\n\n    function parseObservedDateValue(val) {\n      return isDefined(val) && !isDate(val) ? parseDateAndConvertTimeZoneToLocal(val) || undefined : val;\n    }\n\n    function parseDateAndConvertTimeZoneToLocal(value, previousDate) {\n      var timezone = ctrl.$options.getOption('timezone');\n\n      if (previousTimezone && previousTimezone !== timezone) {\n        // If the timezone has changed, adjust the previousDate to the default timezone\n        // so that the new date is converted with the correct timezone offset\n        previousDate = addDateMinutes(previousDate, timezoneToOffset(previousTimezone));\n      }\n\n      var parsedDate = parseDate(value, previousDate);\n\n      if (!isNaN(parsedDate) && timezone) {\n        parsedDate = convertTimezoneToLocal(parsedDate, timezone);\n      }\n      return parsedDate;\n    }\n\n    function formatter(value, timezone) {\n      var targetFormat = format;\n\n      if (isTimeType && isString(ctrl.$options.getOption('timeSecondsFormat'))) {\n        targetFormat = format\n          .replace('ss.sss', ctrl.$options.getOption('timeSecondsFormat'))\n          .replace(/:$/, '');\n      }\n\n      var formatted =  $filter('date')(value, targetFormat, timezone);\n\n      if (isTimeType && ctrl.$options.getOption('timeStripZeroSeconds')) {\n        formatted = formatted.replace(/(?::00)?(?:\\.000)?$/, '');\n      }\n\n      return formatted;\n    }\n  };\n}\n\nfunction badInputChecker(scope, element, attr, ctrl, parserName) {\n  var node = element[0];\n  var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity);\n  if (nativeValidation) {\n    ctrl.$parsers.push(function(value) {\n      var validity = element.prop(VALIDITY_STATE_PROPERTY) || {};\n      if (validity.badInput || validity.typeMismatch) {\n        ctrl.$$parserName = parserName;\n        return undefined;\n      }\n\n      return value;\n    });\n  }\n}\n\nfunction numberFormatterParser(ctrl) {\n  ctrl.$parsers.push(function(value) {\n    if (ctrl.$isEmpty(value))      return null;\n    if (NUMBER_REGEXP.test(value)) return parseFloat(value);\n\n    ctrl.$$parserName = 'number';\n    return undefined;\n  });\n\n  ctrl.$formatters.push(function(value) {\n    if (!ctrl.$isEmpty(value)) {\n      if (!isNumber(value)) {\n        throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value);\n      }\n      value = value.toString();\n    }\n    return value;\n  });\n}\n\nfunction parseNumberAttrVal(val) {\n  if (isDefined(val) && !isNumber(val)) {\n    val = parseFloat(val);\n  }\n  return !isNumberNaN(val) ? val : undefined;\n}\n\nfunction isNumberInteger(num) {\n  // See http://stackoverflow.com/questions/14636536/how-to-check-if-a-variable-is-an-integer-in-javascript#14794066\n  // (minus the assumption that `num` is a number)\n\n  // eslint-disable-next-line no-bitwise\n  return (num | 0) === num;\n}\n\nfunction countDecimals(num) {\n  var numString = num.toString();\n  var decimalSymbolIndex = numString.indexOf('.');\n\n  if (decimalSymbolIndex === -1) {\n    if (-1 < num && num < 1) {\n      // It may be in the exponential notation format (`1e-X`)\n      var match = /e-(\\d+)$/.exec(numString);\n\n      if (match) {\n        return Number(match[1]);\n      }\n    }\n\n    return 0;\n  }\n\n  return numString.length - decimalSymbolIndex - 1;\n}\n\nfunction isValidForStep(viewValue, stepBase, step) {\n  // At this point `stepBase` and `step` are expected to be non-NaN values\n  // and `viewValue` is expected to be a valid stringified number.\n  var value = Number(viewValue);\n\n  var isNonIntegerValue = !isNumberInteger(value);\n  var isNonIntegerStepBase = !isNumberInteger(stepBase);\n  var isNonIntegerStep = !isNumberInteger(step);\n\n  // Due to limitations in Floating Point Arithmetic (e.g. `0.3 - 0.2 !== 0.1` or\n  // `0.5 % 0.1 !== 0`), we need to convert all numbers to integers.\n  if (isNonIntegerValue || isNonIntegerStepBase || isNonIntegerStep) {\n    var valueDecimals = isNonIntegerValue ? countDecimals(value) : 0;\n    var stepBaseDecimals = isNonIntegerStepBase ? countDecimals(stepBase) : 0;\n    var stepDecimals = isNonIntegerStep ? countDecimals(step) : 0;\n\n    var decimalCount = Math.max(valueDecimals, stepBaseDecimals, stepDecimals);\n    var multiplier = Math.pow(10, decimalCount);\n\n    value = value * multiplier;\n    stepBase = stepBase * multiplier;\n    step = step * multiplier;\n\n    if (isNonIntegerValue) value = Math.round(value);\n    if (isNonIntegerStepBase) stepBase = Math.round(stepBase);\n    if (isNonIntegerStep) step = Math.round(step);\n  }\n\n  return (value - stepBase) % step === 0;\n}\n\nfunction numberInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  badInputChecker(scope, element, attr, ctrl, 'number');\n  numberFormatterParser(ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var parsedMinVal;\n\n  if (isDefined(attr.min) || attr.ngMin) {\n    var minVal = attr.min || $parse(attr.ngMin)(scope);\n    parsedMinVal = parseNumberAttrVal(minVal);\n\n    ctrl.$validators.min = function(modelValue, viewValue) {\n      return ctrl.$isEmpty(viewValue) || isUndefined(parsedMinVal) || viewValue >= parsedMinVal;\n    };\n\n    attr.$observe('min', function(val) {\n      if (val !== minVal) {\n        parsedMinVal = parseNumberAttrVal(val);\n        minVal = val;\n        // TODO(matsko): implement validateLater to reduce number of validations\n        ctrl.$validate();\n      }\n    });\n  }\n\n  if (isDefined(attr.max) || attr.ngMax) {\n    var maxVal = attr.max || $parse(attr.ngMax)(scope);\n    var parsedMaxVal = parseNumberAttrVal(maxVal);\n\n    ctrl.$validators.max = function(modelValue, viewValue) {\n      return ctrl.$isEmpty(viewValue) || isUndefined(parsedMaxVal) || viewValue <= parsedMaxVal;\n    };\n\n    attr.$observe('max', function(val) {\n      if (val !== maxVal) {\n        parsedMaxVal = parseNumberAttrVal(val);\n        maxVal = val;\n        // TODO(matsko): implement validateLater to reduce number of validations\n        ctrl.$validate();\n      }\n    });\n  }\n\n  if (isDefined(attr.step) || attr.ngStep) {\n    var stepVal = attr.step || $parse(attr.ngStep)(scope);\n    var parsedStepVal = parseNumberAttrVal(stepVal);\n\n    ctrl.$validators.step = function(modelValue, viewValue) {\n      return ctrl.$isEmpty(viewValue) || isUndefined(parsedStepVal) ||\n        isValidForStep(viewValue, parsedMinVal || 0, parsedStepVal);\n    };\n\n    attr.$observe('step', function(val) {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      if (val !== stepVal) {\n        parsedStepVal = parseNumberAttrVal(val);\n        stepVal = val;\n        ctrl.$validate();\n      }\n\n    });\n\n  }\n}\n\nfunction rangeInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl, 'range');\n  numberFormatterParser(ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var supportsRange = ctrl.$$hasNativeValidators && element[0].type === 'range',\n      minVal = supportsRange ? 0 : undefined,\n      maxVal = supportsRange ? 100 : undefined,\n      stepVal = supportsRange ? 1 : undefined,\n      validity = element[0].validity,\n      hasMinAttr = isDefined(attr.min),\n      hasMaxAttr = isDefined(attr.max),\n      hasStepAttr = isDefined(attr.step);\n\n  var originalRender = ctrl.$render;\n\n  ctrl.$render = supportsRange && isDefined(validity.rangeUnderflow) && isDefined(validity.rangeOverflow) ?\n    //Browsers that implement range will set these values automatically, but reading the adjusted values after\n    //$render would cause the min / max validators to be applied with the wrong value\n    function rangeRender() {\n      originalRender();\n      ctrl.$setViewValue(element.val());\n    } :\n    originalRender;\n\n  if (hasMinAttr) {\n    minVal = parseNumberAttrVal(attr.min);\n\n    ctrl.$validators.min = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMinValidator() { return true; } :\n      // non-support browsers validate the min val\n      function minValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(minVal) || viewValue >= minVal;\n      };\n\n    setInitialValueAndObserver('min', minChange);\n  }\n\n  if (hasMaxAttr) {\n    maxVal = parseNumberAttrVal(attr.max);\n\n    ctrl.$validators.max = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMaxValidator() { return true; } :\n      // non-support browsers validate the max val\n      function maxValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(maxVal) || viewValue <= maxVal;\n      };\n\n    setInitialValueAndObserver('max', maxChange);\n  }\n\n  if (hasStepAttr) {\n    stepVal = parseNumberAttrVal(attr.step);\n\n    ctrl.$validators.step = supportsRange ?\n      function nativeStepValidator() {\n        // Currently, only FF implements the spec on step change correctly (i.e. adjusting the\n        // input element value to a valid value). It's possible that other browsers set the stepMismatch\n        // validity error instead, so we can at least report an error in that case.\n        return !validity.stepMismatch;\n      } :\n      // ngStep doesn't set the setp attr, so the browser doesn't adjust the input value as setting step would\n      function stepValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(stepVal) ||\n               isValidForStep(viewValue, minVal || 0, stepVal);\n      };\n\n    setInitialValueAndObserver('step', stepChange);\n  }\n\n  function setInitialValueAndObserver(htmlAttrName, changeFn) {\n    // interpolated attributes set the attribute value only after a digest, but we need the\n    // attribute value when the input is first rendered, so that the browser can adjust the\n    // input value based on the min/max value\n    element.attr(htmlAttrName, attr[htmlAttrName]);\n    var oldVal = attr[htmlAttrName];\n    attr.$observe(htmlAttrName, function wrappedObserver(val) {\n      if (val !== oldVal) {\n        oldVal = val;\n        changeFn(val);\n      }\n    });\n  }\n\n  function minChange(val) {\n    minVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the minVal is greater than the element value\n      if (minVal > elVal) {\n        elVal = minVal;\n        element.val(elVal);\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function maxChange(val) {\n    maxVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the maxVal is less than the element value\n      if (maxVal < elVal) {\n        element.val(maxVal);\n        // IE11 and Chrome don't set the value to the minVal when max < min\n        elVal = maxVal < minVal ? minVal : maxVal;\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function stepChange(val) {\n    stepVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    // Some browsers don't adjust the input value correctly, but set the stepMismatch error\n    if (!supportsRange) {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    } else if (ctrl.$viewValue !== element.val()) {\n      ctrl.$setViewValue(element.val());\n    }\n  }\n}\n\nfunction urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$validators.url = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || URL_REGEXP.test(value);\n  };\n}\n\nfunction emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$validators.email = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value);\n  };\n}\n\nfunction radioInputType(scope, element, attr, ctrl) {\n  var doTrim = !attr.ngTrim || trim(attr.ngTrim) !== 'false';\n  // make the name unique, if not defined\n  if (isUndefined(attr.name)) {\n    element.attr('name', nextUid());\n  }\n\n  var listener = function(ev) {\n    var value;\n    if (element[0].checked) {\n      value = attr.value;\n      if (doTrim) {\n        value = trim(value);\n      }\n      ctrl.$setViewValue(value, ev && ev.type);\n    }\n  };\n\n  element.on('change', listener);\n\n  ctrl.$render = function() {\n    var value = attr.value;\n    if (doTrim) {\n      value = trim(value);\n    }\n    element[0].checked = (value === ctrl.$viewValue);\n  };\n\n  attr.$observe('value', ctrl.$render);\n}\n\nfunction parseConstantExpr($parse, context, name, expression, fallback) {\n  var parseFn;\n  if (isDefined(expression)) {\n    parseFn = $parse(expression);\n    if (!parseFn.constant) {\n      throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' +\n                                   '`{1}`.', name, expression);\n    }\n    return parseFn(context);\n  }\n  return fallback;\n}\n\nfunction checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true);\n  var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false);\n\n  var listener = function(ev) {\n    ctrl.$setViewValue(element[0].checked, ev && ev.type);\n  };\n\n  element.on('change', listener);\n\n  ctrl.$render = function() {\n    element[0].checked = ctrl.$viewValue;\n  };\n\n  // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false`\n  // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert\n  // it to a boolean.\n  ctrl.$isEmpty = function(value) {\n    return value === false;\n  };\n\n  ctrl.$formatters.push(function(value) {\n    return equals(value, trueValue);\n  });\n\n  ctrl.$parsers.push(function(value) {\n    return value ? trueValue : falseValue;\n  });\n}\n\n\n/**\n * @ngdoc directive\n * @name textarea\n * @restrict E\n *\n * @description\n * HTML textarea element control with AngularJS data-binding. The data-binding and validation\n * properties of this element are exactly the same as those of the\n * {@link ng.directive:input input element}.\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n *\n * @knownIssue\n *\n * When specifying the `placeholder` attribute of `<textarea>`, Internet Explorer will temporarily\n * insert the placeholder value as the textarea's content. If the placeholder value contains\n * interpolation (`{{ ... }}`), an error will be logged in the console when AngularJS tries to update\n * the value of the by-then-removed text node. This doesn't affect the functionality of the\n * textarea, but can be undesirable.\n *\n * You can work around this Internet Explorer issue by using `ng-attr-placeholder` instead of\n * `placeholder` on textareas, whenever you need interpolation in the placeholder value. You can\n * find more details on `ngAttr` in the\n * [Interpolation](guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes) section of the\n * Developer Guide.\n */\n\n\n/**\n * @ngdoc directive\n * @name input\n * @restrict E\n *\n * @description\n * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding,\n * input state control, and validation.\n * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Not every feature offered is available for all input types.\n * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`.\n * </div>\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {boolean=} ngRequired Sets `required` attribute if set to true\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    value does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n *    This parameter is ignored for input[type=password] controls, which will never trim the\n *    input.\n *\n * @example\n    <example name=\"input-directive\" module=\"inputExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('inputExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.user = {name: 'guest', last: 'visitor'};\n            }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <form name=\"myForm\">\n           <label>\n              User name:\n              <input type=\"text\" name=\"userName\" ng-model=\"user.name\" required>\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.userName.$error.required\">\n              Required!</span>\n           </div>\n           <label>\n              Last name:\n              <input type=\"text\" name=\"lastName\" ng-model=\"user.last\"\n              ng-minlength=\"3\" ng-maxlength=\"10\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.minlength\">\n               Too short!</span>\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.maxlength\">\n               Too long!</span>\n           </div>\n         </form>\n         <hr>\n         <tt>user = {{user}}</tt><br/>\n         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br/>\n         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br/>\n         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br/>\n         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br/>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br/>\n         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br/>\n       </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var user = element(by.exactBinding('user'));\n        var userNameValid = element(by.binding('myForm.userName.$valid'));\n        var lastNameValid = element(by.binding('myForm.lastName.$valid'));\n        var lastNameError = element(by.binding('myForm.lastName.$error'));\n        var formValid = element(by.binding('myForm.$valid'));\n        var userNameInput = element(by.model('user.name'));\n        var userLastInput = element(by.model('user.last'));\n\n        it('should initialize to model', function() {\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty when required', function() {\n          userNameInput.clear();\n          userNameInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('false');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be valid if empty when min length is set', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"\"}');\n          expect(lastNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if less than required min length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('xx');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('minlength');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be invalid if longer than max length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('some ridiculously long name');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('maxlength');\n          expect(formValid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n */\nvar inputDirective = ['$browser', '$sniffer', '$filter', '$parse',\n    function($browser, $sniffer, $filter, $parse) {\n  return {\n    restrict: 'E',\n    require: ['?ngModel'],\n    link: {\n      pre: function(scope, element, attr, ctrls) {\n        if (ctrls[0]) {\n          (inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrls[0], $sniffer,\n                                                              $browser, $filter, $parse);\n        }\n      }\n    }\n  };\n}];\n\n\nvar hiddenInputBrowserCacheDirective = function() {\n  var valueProperty = {\n    configurable: true,\n    enumerable: false,\n    get: function() {\n      return this.getAttribute('value') || '';\n    },\n    set: function(val) {\n      this.setAttribute('value', val);\n    }\n  };\n\n  return {\n    restrict: 'E',\n    priority: 200,\n    compile: function(_, attr) {\n      if (lowercase(attr.type) !== 'hidden') {\n        return;\n      }\n\n      return {\n        pre: function(scope, element, attr, ctrls) {\n          var node = element[0];\n\n          // Support: Edge\n          // Moving the DOM around prevents autofillling\n          if (node.parentNode) {\n            node.parentNode.insertBefore(node, node.nextSibling);\n          }\n\n          // Support: FF, IE\n          // Avoiding direct assignment to .value prevents autofillling\n          if (Object.defineProperty) {\n            Object.defineProperty(node, 'value', valueProperty);\n          }\n        }\n      };\n    }\n  };\n};\n\n\n\nvar CONSTANT_VALUE_REGEXP = /^(true|false|\\d+)$/;\n/**\n * @ngdoc directive\n * @name ngValue\n * @restrict A\n * @priority 100\n *\n * @description\n * Binds the given expression to the value of the element.\n *\n * It is mainly used on {@link input[radio] `input[radio]`} and option elements,\n * so that when the element is selected, the {@link ngModel `ngModel`} of that element (or its\n * {@link select `select`} parent element) is set to the bound value. It is especially useful\n * for dynamically generated lists using {@link ngRepeat `ngRepeat`}, as shown below.\n *\n * It can also be used to achieve one-way binding of a given expression to an input element\n * such as an `input[text]` or a `textarea`, when that element does not use ngModel.\n *\n * @element ANY\n * @param {string=} ngValue AngularJS expression, whose value will be bound to the `value` attribute\n * and `value` property of the element.\n *\n * @example\n    <example name=\"ngValue-directive\" module=\"valueExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('valueExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.names = ['pizza', 'unicorns', 'robots'];\n              $scope.my = { favorite: 'unicorns' };\n            }]);\n       </script>\n        <form ng-controller=\"ExampleController\">\n          <h2>Which is your favorite?</h2>\n            <label ng-repeat=\"name in names\" for=\"{{name}}\">\n              {{name}}\n              <input type=\"radio\"\n                     ng-model=\"my.favorite\"\n                     ng-value=\"name\"\n                     id=\"{{name}}\"\n                     name=\"favorite\">\n            </label>\n          <div>You chose {{my.favorite}}</div>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var favorite = element(by.binding('my.favorite'));\n\n        it('should initialize to model', function() {\n          expect(favorite.getText()).toContain('unicorns');\n        });\n        it('should bind the values to the inputs', function() {\n          element.all(by.model('my.favorite')).get(0).click();\n          expect(favorite.getText()).toContain('pizza');\n        });\n      </file>\n    </example>\n */\nvar ngValueDirective = function() {\n  /**\n   *  inputs use the value attribute as their default value if the value property is not set.\n   *  Once the value property has been set (by adding input), it will not react to changes to\n   *  the value attribute anymore. Setting both attribute and property fixes this behavior, and\n   *  makes it possible to use ngValue as a sort of one-way bind.\n   */\n  function updateElementValue(element, attr, value) {\n    // Support: IE9 only\n    // In IE9 values are converted to string (e.g. `input.value = null` results in `input.value === 'null'`).\n    var propValue = isDefined(value) ? value : (msie === 9) ? '' : null;\n    element.prop('value', propValue);\n    attr.$set('value', value);\n  }\n\n  return {\n    restrict: 'A',\n    priority: 100,\n    compile: function(tpl, tplAttr) {\n      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {\n        return function ngValueConstantLink(scope, elm, attr) {\n          var value = scope.$eval(attr.ngValue);\n          updateElementValue(elm, attr, value);\n        };\n      } else {\n        return function ngValueLink(scope, elm, attr) {\n          scope.$watch(attr.ngValue, function valueWatchAction(value) {\n            updateElementValue(elm, attr, value);\n          });\n        };\n      }\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngBind\n * @restrict AC\n *\n * @description\n * The `ngBind` attribute tells AngularJS to replace the text content of the specified HTML element\n * with the value of a given expression, and to update the text content when the value of that\n * expression changes.\n *\n * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like\n * `{{ expression }}` which is similar but less verbose.\n *\n * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily\n * displayed by the browser in its raw state before AngularJS compiles it. Since `ngBind` is an\n * element attribute, it makes the bindings invisible to the user while the page is loading.\n *\n * An alternative solution to this problem would be using the\n * {@link ng.directive:ngCloak ngCloak} directive.\n *\n *\n * @element ANY\n * @param {expression} ngBind {@link guide/expression Expression} to evaluate.\n *\n * @example\n * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.\n   <example module=\"bindExample\" name=\"ng-bind\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.name = 'Whirled';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter name: <input type=\"text\" ng-model=\"name\"></label><br>\n         Hello <span ng-bind=\"name\"></span>!\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var nameInput = element(by.model('name'));\n\n         expect(element(by.binding('name')).getText()).toBe('Whirled');\n         nameInput.clear();\n         nameInput.sendKeys('world');\n         expect(element(by.binding('name')).getText()).toBe('world');\n       });\n     </file>\n   </example>\n */\nvar ngBindDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'AC',\n    compile: function ngBindCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBind);\n        element = element[0];\n        scope.$watch(attr.ngBind, function ngBindWatchAction(value) {\n          element.textContent = stringify(value);\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindTemplate\n *\n * @description\n * The `ngBindTemplate` directive specifies that the element\n * text content should be replaced with the interpolation of the template\n * in the `ngBindTemplate` attribute.\n * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`\n * expressions. This directive is needed since some HTML elements\n * (such as TITLE and OPTION) cannot contain SPAN elements.\n *\n * @element ANY\n * @param {string} ngBindTemplate template of form\n *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.\n *\n * @example\n * Try it here: enter text in text box and watch the greeting change.\n   <example module=\"bindExample\" name=\"ng-bind-template\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.salutation = 'Hello';\n             $scope.name = 'World';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n        <label>Salutation: <input type=\"text\" ng-model=\"salutation\"></label><br>\n        <label>Name: <input type=\"text\" ng-model=\"name\"></label><br>\n        <pre ng-bind-template=\"{{salutation}} {{name}}!\"></pre>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var salutationElem = element(by.binding('salutation'));\n         var salutationInput = element(by.model('salutation'));\n         var nameInput = element(by.model('name'));\n\n         expect(salutationElem.getText()).toBe('Hello World!');\n\n         salutationInput.clear();\n         salutationInput.sendKeys('Greetings');\n         nameInput.clear();\n         nameInput.sendKeys('user');\n\n         expect(salutationElem.getText()).toBe('Greetings user!');\n       });\n     </file>\n   </example>\n */\nvar ngBindTemplateDirective = ['$interpolate', '$compile', function($interpolate, $compile) {\n  return {\n    compile: function ngBindTemplateCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindTemplateLink(scope, element, attr) {\n        var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));\n        $compile.$$addBindingInfo(element, interpolateFn.expressions);\n        element = element[0];\n        attr.$observe('ngBindTemplate', function(value) {\n          element.textContent = isUndefined(value) ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindHtml\n *\n * @description\n * Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default,\n * the resulting HTML content will be sanitized using the {@link ngSanitize.$sanitize $sanitize} service.\n * To utilize this functionality, ensure that `$sanitize` is available, for example, by including {@link\n * ngSanitize} in your module's dependencies (not in core AngularJS). In order to use {@link ngSanitize}\n * in your module's dependencies, you need to include \"angular-sanitize.js\" in your application.\n *\n * You may also bypass sanitization for values you know are safe. To do so, bind to\n * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example\n * under {@link ng.$sce#show-me-an-example-using-sce- Strict Contextual Escaping (SCE)}.\n *\n * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you\n * will have an exception (instead of an exploit.)\n *\n * @element ANY\n * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.\n *\n * @example\n\n   <example module=\"bindHtmlExample\" deps=\"angular-sanitize.js\" name=\"ng-bind-html\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n        <p ng-bind-html=\"myHTML\"></p>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n       angular.module('bindHtmlExample', ['ngSanitize'])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.myHTML =\n              'I am an <code>HTML</code>string with ' +\n              '<a href=\"#\">links!</a> and other <em>stuff</em>';\n         }]);\n     </file>\n\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind-html', function() {\n         expect(element(by.binding('myHTML')).getText()).toBe(\n             'I am an HTMLstring with links! and other stuff');\n       });\n     </file>\n   </example>\n */\nvar ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {\n  return {\n    restrict: 'A',\n    compile: function ngBindHtmlCompile(tElement, tAttrs) {\n      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);\n      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function sceValueOf(val) {\n        // Unwrap the value to compare the actual inner safe value, not the wrapper object.\n        return $sce.valueOf(val);\n      });\n      $compile.$$addBindingClass(tElement);\n\n      return function ngBindHtmlLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBindHtml);\n\n        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {\n          // The watched value is the unwrapped value. To avoid re-escaping, use the direct getter.\n          var value = ngBindHtmlGetter(scope);\n          element.html($sce.getTrustedHtml(value) || '');\n        });\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngChange\n * @restrict A\n *\n * @description\n * Evaluate the given expression when the user changes the input.\n * The expression is evaluated immediately, unlike the JavaScript onchange event\n * which only triggers at the end of a change (usually, when the user leaves the\n * form element or presses the return key).\n *\n * The `ngChange` expression is only evaluated when a change in the input value causes\n * a new value to be committed to the model.\n *\n * It will not be evaluated:\n * * if the value returned from the `$parsers` transformation pipeline has not changed\n * * if the input has continued to be invalid since the model will stay `null`\n * * if the model is changed programmatically and not by a change to the input value\n *\n *\n * Note, this directive requires `ngModel` to be present.\n *\n * @element ANY\n * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change\n * in input value.\n *\n * @example\n * <example name=\"ngChange-directive\" module=\"changeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('changeExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.counter = 0;\n *           $scope.change = function() {\n *             $scope.counter++;\n *           };\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input type=\"checkbox\" ng-model=\"confirmed\" ng-change=\"change()\" id=\"ng-change-example1\" />\n *       <input type=\"checkbox\" ng-model=\"confirmed\" id=\"ng-change-example2\" />\n *       <label for=\"ng-change-example2\">Confirmed</label><br />\n *       <tt>debug = {{confirmed}}</tt><br/>\n *       <tt>counter = {{counter}}</tt><br/>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var counter = element(by.binding('counter'));\n *     var debug = element(by.binding('confirmed'));\n *\n *     it('should evaluate the expression if changing from view', function() {\n *       expect(counter.getText()).toContain('0');\n *\n *       element(by.id('ng-change-example1')).click();\n *\n *       expect(counter.getText()).toContain('1');\n *       expect(debug.getText()).toContain('true');\n *     });\n *\n *     it('should not evaluate the expression if changing from model', function() {\n *       element(by.id('ng-change-example2')).click();\n\n *       expect(counter.getText()).toContain('0');\n *       expect(debug.getText()).toContain('true');\n *     });\n *   </file>\n * </example>\n */\nvar ngChangeDirective = valueFn({\n  restrict: 'A',\n  require: 'ngModel',\n  link: function(scope, element, attr, ctrl) {\n    ctrl.$viewChangeListeners.push(function() {\n      scope.$eval(attr.ngChange);\n    });\n  }\n});\n\n/* exported\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective\n*/\n\nfunction classDirective(name, selector) {\n  name = 'ngClass' + name;\n  var indexWatchExpression;\n\n  return ['$parse', function($parse) {\n    return {\n      restrict: 'AC',\n      link: function(scope, element, attr) {\n        var classCounts = element.data('$classCounts');\n        var oldModulo = true;\n        var oldClassString;\n\n        if (!classCounts) {\n          // Use createMap() to prevent class assumptions involving property\n          // names in Object.prototype\n          classCounts = createMap();\n          element.data('$classCounts', classCounts);\n        }\n\n        if (name !== 'ngClass') {\n          if (!indexWatchExpression) {\n            indexWatchExpression = $parse('$index', function moduloTwo($index) {\n              // eslint-disable-next-line no-bitwise\n              return $index & 1;\n            });\n          }\n\n          scope.$watch(indexWatchExpression, ngClassIndexWatchAction);\n        }\n\n        scope.$watch($parse(attr[name], toClassString), ngClassWatchAction);\n\n        function addClasses(classString) {\n          classString = digestClassCounts(split(classString), 1);\n          attr.$addClass(classString);\n        }\n\n        function removeClasses(classString) {\n          classString = digestClassCounts(split(classString), -1);\n          attr.$removeClass(classString);\n        }\n\n        function updateClasses(oldClassString, newClassString) {\n          var oldClassArray = split(oldClassString);\n          var newClassArray = split(newClassString);\n\n          var toRemoveArray = arrayDifference(oldClassArray, newClassArray);\n          var toAddArray = arrayDifference(newClassArray, oldClassArray);\n\n          var toRemoveString = digestClassCounts(toRemoveArray, -1);\n          var toAddString = digestClassCounts(toAddArray, 1);\n\n          attr.$addClass(toAddString);\n          attr.$removeClass(toRemoveString);\n        }\n\n        function digestClassCounts(classArray, count) {\n          var classesToUpdate = [];\n\n          forEach(classArray, function(className) {\n            if (count > 0 || classCounts[className]) {\n              classCounts[className] = (classCounts[className] || 0) + count;\n              if (classCounts[className] === +(count > 0)) {\n                classesToUpdate.push(className);\n              }\n            }\n          });\n\n          return classesToUpdate.join(' ');\n        }\n\n        function ngClassIndexWatchAction(newModulo) {\n          // This watch-action should run before the `ngClassWatchAction()`, thus it\n          // adds/removes `oldClassString`. If the `ngClass` expression has changed as well, the\n          // `ngClassWatchAction()` will update the classes.\n          if (newModulo === selector) {\n            addClasses(oldClassString);\n          } else {\n            removeClasses(oldClassString);\n          }\n\n          oldModulo = newModulo;\n        }\n\n        function ngClassWatchAction(newClassString) {\n          if (oldModulo === selector) {\n            updateClasses(oldClassString, newClassString);\n          }\n\n          oldClassString = newClassString;\n        }\n      }\n    };\n  }];\n\n  // Helpers\n  function arrayDifference(tokens1, tokens2) {\n    if (!tokens1 || !tokens1.length) return [];\n    if (!tokens2 || !tokens2.length) return tokens1;\n\n    var values = [];\n\n    outer:\n    for (var i = 0; i < tokens1.length; i++) {\n      var token = tokens1[i];\n      for (var j = 0; j < tokens2.length; j++) {\n        if (token === tokens2[j]) continue outer;\n      }\n      values.push(token);\n    }\n\n    return values;\n  }\n\n  function split(classString) {\n    return classString && classString.split(' ');\n  }\n\n  function toClassString(classValue) {\n    if (!classValue) return classValue;\n\n    var classString = classValue;\n\n    if (isArray(classValue)) {\n      classString = classValue.map(toClassString).join(' ');\n    } else if (isObject(classValue)) {\n      classString = Object.keys(classValue).\n        filter(function(key) { return classValue[key]; }).\n        join(' ');\n    } else if (!isString(classValue)) {\n      classString = classValue + '';\n    }\n\n    return classString;\n  }\n}\n\n/**\n * @ngdoc directive\n * @name ngClass\n * @restrict AC\n * @element ANY\n *\n * @description\n * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding\n * an expression that represents all classes to be added.\n *\n * The directive operates in three different ways, depending on which of three types the expression\n * evaluates to:\n *\n * 1. If the expression evaluates to a string, the string should be one or more space-delimited class\n * names.\n *\n * 2. If the expression evaluates to an object, then for each key-value pair of the\n * object with a truthy value the corresponding key is used as a class name.\n *\n * 3. If the expression evaluates to an array, each element of the array should either be a string as in\n * type 1 or an object as in type 2. This means that you can mix strings and objects together in an array\n * to give you more control over what CSS classes appear. See the code below for an example of this.\n *\n *\n * The directive won't add duplicate classes if a particular class was already set.\n *\n * When the expression changes, the previously added classes are removed and only then are the\n * new classes added.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `class`\n * attribute, when using the `ngClass` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n * | {@link ng.$animate#setClass setClass} | just before classes are added and classes are removed from the element at the same time |\n *\n * ### ngClass and pre-existing CSS3 Transitions/Animations\n   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.\n   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder\n   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure\n   to view the step by step details of {@link $animate#addClass $animate.addClass} and\n   {@link $animate#removeClass $animate.removeClass}.\n *\n * @param {expression} ngClass {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class\n *   names, an array, or a map of class names to boolean values. In the case of a map, the\n *   names of the properties whose values are truthy will be added as css classes to the\n *   element.\n *\n * @example\n * ### Basic\n   <example name=\"ng-class\">\n     <file name=\"index.html\">\n       <p ng-class=\"{strike: deleted, bold: important, 'has-error': error}\">Map Syntax Example</p>\n       <label>\n          <input type=\"checkbox\" ng-model=\"deleted\">\n          deleted (apply \"strike\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"important\">\n          important (apply \"bold\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"error\">\n          error (apply \"has-error\" class)\n       </label>\n       <hr>\n       <p ng-class=\"style\">Using String Syntax</p>\n       <input type=\"text\" ng-model=\"style\"\n              placeholder=\"Type: bold strike red\" aria-label=\"Type: bold strike red\">\n       <hr>\n       <p ng-class=\"[style1, style2, style3]\">Using Array Syntax</p>\n       <input ng-model=\"style1\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style2\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 2\"><br>\n       <input ng-model=\"style3\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 3\"><br>\n       <hr>\n       <p ng-class=\"[style4, {orange: warning}]\">Using Array and Map Syntax</p>\n       <input ng-model=\"style4\" placeholder=\"Type: bold, strike\" aria-label=\"Type: bold, strike\"><br>\n       <label><input type=\"checkbox\" ng-model=\"warning\"> warning (apply \"orange\" class)</label>\n     </file>\n     <file name=\"style.css\">\n       .strike {\n           text-decoration: line-through;\n       }\n       .bold {\n           font-weight: bold;\n       }\n       .red {\n           color: red;\n       }\n       .has-error {\n           color: red;\n           background-color: yellow;\n       }\n       .orange {\n           color: orange;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var ps = element.all(by.css('p'));\n\n       it('should let you toggle the class', function() {\n\n         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);\n         expect(ps.first().getAttribute('class')).not.toMatch(/has-error/);\n\n         element(by.model('important')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/bold/);\n\n         element(by.model('error')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/has-error/);\n       });\n\n       it('should let you toggle string example', function() {\n         expect(ps.get(1).getAttribute('class')).toBe('');\n         element(by.model('style')).clear();\n         element(by.model('style')).sendKeys('red');\n         expect(ps.get(1).getAttribute('class')).toBe('red');\n       });\n\n       it('array example should have 3 classes', function() {\n         expect(ps.get(2).getAttribute('class')).toBe('');\n         element(by.model('style1')).sendKeys('bold');\n         element(by.model('style2')).sendKeys('strike');\n         element(by.model('style3')).sendKeys('red');\n         expect(ps.get(2).getAttribute('class')).toBe('bold strike red');\n       });\n\n       it('array with map example should have 2 classes', function() {\n         expect(ps.last().getAttribute('class')).toBe('');\n         element(by.model('style4')).sendKeys('bold');\n         element(by.model('warning')).click();\n         expect(ps.last().getAttribute('class')).toBe('bold orange');\n       });\n     </file>\n   </example>\n\n   @example\n   ### Animations\n\n   The example below demonstrates how to perform animations using ngClass.\n\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class\">\n     <file name=\"index.html\">\n      <input id=\"setbtn\" type=\"button\" value=\"set\" ng-click=\"myVar='my-class'\">\n      <input id=\"clearbtn\" type=\"button\" value=\"clear\" ng-click=\"myVar=''\">\n      <br>\n      <span class=\"base-class\" ng-class=\"myVar\">Sample Text</span>\n     </file>\n     <file name=\"style.css\">\n       .base-class {\n         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n       }\n\n       .base-class.my-class {\n         color: red;\n         font-size:3em;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class', function() {\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n\n         element(by.id('setbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).\n           toMatch(/my-class/);\n\n         element(by.id('clearbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n       });\n     </file>\n   </example>\n */\nvar ngClassDirective = classDirective('', true);\n\n/**\n * @ngdoc directive\n * @name ngClassOdd\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * @element ANY\n * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-odd\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}}\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n *\n * <hr />\n * @example\n * An example on how to implement animations using `ngClassOdd`:\n *\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class-odd-animate\">\n     <file name=\"index.html\">\n       <div ng-init=\"items=['Item 3', 'Item 2', 'Item 1', 'Item 0']\">\n         <button ng-click=\"items.unshift('Item ' + items.length)\">Add item</button>\n         <hr />\n         <table>\n           <tr ng-repeat=\"item in items\" ng-class-odd=\"'odd'\">\n             <td>{{ item }}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         background: rgba(255, 255, 0, 0.25);\n       }\n\n       .odd-add, .odd-remove {\n         transition: 1.5s;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should add new entries to the beginning of the list', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.count()).toBe(4);\n         expect(rows.get(0).getText()).toBe('Item 3');\n         expect(rows.get(1).getText()).toBe('Item 2');\n\n         button.click();\n\n         expect(rows.count()).toBe(5);\n         expect(rows.get(0).getText()).toBe('Item 4');\n         expect(rows.get(1).getText()).toBe('Item 3');\n       });\n\n       it('should add odd class to odd entries', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.get(0).getAttribute('class')).toMatch(/odd/);\n         expect(rows.get(1).getAttribute('class')).not.toMatch(/odd/);\n\n         button.click();\n\n         expect(rows.get(0).getAttribute('class')).toMatch(/odd/);\n         expect(rows.get(1).getAttribute('class')).not.toMatch(/odd/);\n       });\n     </file>\n   </example>\n */\nvar ngClassOddDirective = classDirective('Odd', 0);\n\n/**\n * @ngdoc directive\n * @name ngClassEven\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * @element ANY\n * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The\n *   result of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-even\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}} &nbsp; &nbsp; &nbsp;\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n *\n * <hr />\n * @example\n * An example on how to implement animations using `ngClassEven`:\n *\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class-even-animate\">\n     <file name=\"index.html\">\n       <div ng-init=\"items=['Item 3', 'Item 2', 'Item 1', 'Item 0']\">\n         <button ng-click=\"items.unshift('Item ' + items.length)\">Add item</button>\n         <hr />\n         <table>\n           <tr ng-repeat=\"item in items\" ng-class-even=\"'even'\">\n             <td>{{ item }}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"style.css\">\n       .even {\n         background: rgba(255, 255, 0, 0.25);\n       }\n\n       .even-add, .even-remove {\n         transition: 1.5s;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should add new entries to the beginning of the list', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.count()).toBe(4);\n         expect(rows.get(0).getText()).toBe('Item 3');\n         expect(rows.get(1).getText()).toBe('Item 2');\n\n         button.click();\n\n         expect(rows.count()).toBe(5);\n         expect(rows.get(0).getText()).toBe('Item 4');\n         expect(rows.get(1).getText()).toBe('Item 3');\n       });\n\n       it('should add even class to even entries', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.get(0).getAttribute('class')).not.toMatch(/even/);\n         expect(rows.get(1).getAttribute('class')).toMatch(/even/);\n\n         button.click();\n\n         expect(rows.get(0).getAttribute('class')).not.toMatch(/even/);\n         expect(rows.get(1).getAttribute('class')).toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassEvenDirective = classDirective('Even', 1);\n\n/**\n * @ngdoc directive\n * @name ngCloak\n * @restrict AC\n *\n * @description\n * The `ngCloak` directive is used to prevent the AngularJS html template from being briefly\n * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this\n * directive to avoid the undesirable flicker effect caused by the html template display.\n *\n * The directive can be applied to the `<body>` element, but the preferred usage is to apply\n * multiple `ngCloak` directives to small portions of the page to permit progressive rendering\n * of the browser view.\n *\n * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and\n * `angular.min.js`.\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```css\n * [ng\\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {\n *   display: none !important;\n * }\n * ```\n *\n * When this css rule is loaded by the browser, all html elements (including their children) that\n * are tagged with the `ngCloak` directive are hidden. When AngularJS encounters this directive\n * during the compilation of the template it deletes the `ngCloak` element attribute, making\n * the compiled element visible.\n *\n * For the best result, the `angular.js` script must be loaded in the head section of the html\n * document; alternatively, the css rule above must be included in the external stylesheet of the\n * application.\n *\n * @element ANY\n *\n * @example\n   <example name=\"ng-cloak\">\n     <file name=\"index.html\">\n        <div id=\"template1\" ng-cloak>{{ 'hello' }}</div>\n        <div id=\"template2\" class=\"ng-cloak\">{{ 'world' }}</div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should remove the template directive and css class', function() {\n         expect($('#template1').getAttribute('ng-cloak')).\n           toBeNull();\n         expect($('#template2').getAttribute('ng-cloak')).\n           toBeNull();\n       });\n     </file>\n   </example>\n *\n */\nvar ngCloakDirective = ngDirective({\n  compile: function(element, attr) {\n    attr.$set('ngCloak', undefined);\n    element.removeClass('ng-cloak');\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngController\n *\n * @description\n * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular\n * supports the principles behind the Model-View-Controller design pattern.\n *\n * MVC components in angular:\n *\n * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties\n *   are accessed through bindings.\n * * View — The template (HTML with data bindings) that is rendered into the View.\n * * Controller — The `ngController` directive specifies a Controller class; the class contains business\n *   logic behind the application to decorate the scope with functions and values\n *\n * Note that you can also attach controllers to the DOM by declaring it in a route definition\n * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller\n * again using `ng-controller` in the template itself.  This will cause the controller to be attached\n * and executed twice.\n *\n * @element ANY\n * @scope\n * @priority 500\n * @param {expression} ngController Name of a constructor function registered with the current\n * {@link ng.$controllerProvider $controllerProvider} or an {@link guide/expression expression}\n * that on the current scope evaluates to a constructor function.\n *\n * The controller instance can be published into a scope property by specifying\n * `ng-controller=\"as propertyName\"`.\n *\n * @example\n * Here is a simple form for editing user contact information. Adding, removing, clearing, and\n * greeting are methods declared on the controller (see source tab). These methods can\n * easily be called from the AngularJS markup. Any changes to the data are automatically reflected\n * in the View without the need for a manual update.\n *\n * Two different declaration styles are included below:\n *\n * * one binds methods and properties directly onto the controller using `this`:\n * `ng-controller=\"SettingsController1 as settings\"`\n * * one injects `$scope` into the controller:\n * `ng-controller=\"SettingsController2\"`\n *\n * The second option is more common in the AngularJS community, and is generally used in boilerplates\n * and in this guide. However, there are advantages to binding properties directly to the controller\n * and avoiding scope.\n *\n * * Using `controller as` makes it obvious which controller you are accessing in the template when\n * multiple controllers apply to an element.\n * * If you are writing your controllers as classes you have easier access to the properties and\n * methods, which will appear on the scope, from inside the controller code.\n * * Since there is always a `.` in the bindings, you don't have to worry about prototypal\n * inheritance masking primitives.\n *\n * This example demonstrates the `controller as` syntax.\n *\n * <example name=\"ngControllerAs\" module=\"controllerAsExample\">\n *   <file name=\"index.html\">\n *    <div id=\"ctrl-as-exmpl\" ng-controller=\"SettingsController1 as settings\">\n *      <label>Name: <input type=\"text\" ng-model=\"settings.name\"/></label>\n *      <button ng-click=\"settings.greet()\">greet</button><br/>\n *      Contact:\n *      <ul>\n *        <li ng-repeat=\"contact in settings.contacts\">\n *          <select ng-model=\"contact.type\" aria-label=\"Contact method\" id=\"select_{{$index}}\">\n *             <option>phone</option>\n *             <option>email</option>\n *          </select>\n *          <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *          <button ng-click=\"settings.clearContact(contact)\">clear</button>\n *          <button ng-click=\"settings.removeContact(contact)\" aria-label=\"Remove\">X</button>\n *        </li>\n *        <li><button ng-click=\"settings.addContact()\">add</button></li>\n *     </ul>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('controllerAsExample', [])\n *      .controller('SettingsController1', SettingsController1);\n *\n *    function SettingsController1() {\n *      this.name = 'John Smith';\n *      this.contacts = [\n *        {type: 'phone', value: '408 555 1212'},\n *        {type: 'email', value: 'john.smith@example.org'}\n *      ];\n *    }\n *\n *    SettingsController1.prototype.greet = function() {\n *      alert(this.name);\n *    };\n *\n *    SettingsController1.prototype.addContact = function() {\n *      this.contacts.push({type: 'email', value: 'yourname@example.org'});\n *    };\n *\n *    SettingsController1.prototype.removeContact = function(contactToRemove) {\n *     var index = this.contacts.indexOf(contactToRemove);\n *      this.contacts.splice(index, 1);\n *    };\n *\n *    SettingsController1.prototype.clearContact = function(contact) {\n *      contact.type = 'phone';\n *      contact.value = '';\n *    };\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should check controller as', function() {\n *       var container = element(by.id('ctrl-as-exmpl'));\n *         expect(container.element(by.model('settings.name'))\n *           .getAttribute('value')).toBe('John Smith');\n *\n *       var firstRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(0));\n *       var secondRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(1));\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('408 555 1212');\n *\n *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('john.smith@example.org');\n *\n *       firstRepeat.element(by.buttonText('clear')).click();\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('');\n *\n *       container.element(by.buttonText('add')).click();\n *\n *       expect(container.element(by.repeater('contact in settings.contacts').row(2))\n *           .element(by.model('contact.value'))\n *           .getAttribute('value'))\n *           .toBe('yourname@example.org');\n *     });\n *   </file>\n * </example>\n *\n * This example demonstrates the \"attach to `$scope`\" style of controller.\n *\n * <example name=\"ngController\" module=\"controllerExample\">\n *  <file name=\"index.html\">\n *   <div id=\"ctrl-exmpl\" ng-controller=\"SettingsController2\">\n *     <label>Name: <input type=\"text\" ng-model=\"name\"/></label>\n *     <button ng-click=\"greet()\">greet</button><br/>\n *     Contact:\n *     <ul>\n *       <li ng-repeat=\"contact in contacts\">\n *         <select ng-model=\"contact.type\" id=\"select_{{$index}}\">\n *            <option>phone</option>\n *            <option>email</option>\n *         </select>\n *         <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *         <button ng-click=\"clearContact(contact)\">clear</button>\n *         <button ng-click=\"removeContact(contact)\">X</button>\n *       </li>\n *       <li>[ <button ng-click=\"addContact()\">add</button> ]</li>\n *    </ul>\n *   </div>\n *  </file>\n *  <file name=\"app.js\">\n *   angular.module('controllerExample', [])\n *     .controller('SettingsController2', ['$scope', SettingsController2]);\n *\n *   function SettingsController2($scope) {\n *     $scope.name = 'John Smith';\n *     $scope.contacts = [\n *       {type:'phone', value:'408 555 1212'},\n *       {type:'email', value:'john.smith@example.org'}\n *     ];\n *\n *     $scope.greet = function() {\n *       alert($scope.name);\n *     };\n *\n *     $scope.addContact = function() {\n *       $scope.contacts.push({type:'email', value:'yourname@example.org'});\n *     };\n *\n *     $scope.removeContact = function(contactToRemove) {\n *       var index = $scope.contacts.indexOf(contactToRemove);\n *       $scope.contacts.splice(index, 1);\n *     };\n *\n *     $scope.clearContact = function(contact) {\n *       contact.type = 'phone';\n *       contact.value = '';\n *     };\n *   }\n *  </file>\n *  <file name=\"protractor.js\" type=\"protractor\">\n *    it('should check controller', function() {\n *      var container = element(by.id('ctrl-exmpl'));\n *\n *      expect(container.element(by.model('name'))\n *          .getAttribute('value')).toBe('John Smith');\n *\n *      var firstRepeat =\n *          container.element(by.repeater('contact in contacts').row(0));\n *      var secondRepeat =\n *          container.element(by.repeater('contact in contacts').row(1));\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('408 555 1212');\n *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('john.smith@example.org');\n *\n *      firstRepeat.element(by.buttonText('clear')).click();\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('');\n *\n *      container.element(by.buttonText('add')).click();\n *\n *      expect(container.element(by.repeater('contact in contacts').row(2))\n *          .element(by.model('contact.value'))\n *          .getAttribute('value'))\n *          .toBe('yourname@example.org');\n *    });\n *  </file>\n *</example>\n\n */\nvar ngControllerDirective = [function() {\n  return {\n    restrict: 'A',\n    scope: true,\n    controller: '@',\n    priority: 500\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngCsp\n *\n * @restrict A\n * @element ANY\n * @description\n *\n * AngularJS has some features that can conflict with certain restrictions that are applied when using\n * [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) rules.\n *\n * If you intend to implement CSP with these rules then you must tell AngularJS not to use these\n * features.\n *\n * This is necessary when developing things like Google Chrome Extensions or Universal Windows Apps.\n *\n *\n * The following default rules in CSP affect AngularJS:\n *\n * * The use of `eval()`, `Function(string)` and similar functions to dynamically create and execute\n * code from strings is forbidden. AngularJS makes use of this in the {@link $parse} service to\n * provide a 30% increase in the speed of evaluating AngularJS expressions. (This CSP rule can be\n * disabled with the CSP keyword `unsafe-eval`, but it is generally not recommended as it would\n * weaken the protections offered by CSP.)\n *\n * * The use of inline resources, such as inline `<script>` and `<style>` elements, are forbidden.\n * This prevents apps from injecting custom styles directly into the document. AngularJS makes use of\n * this to include some CSS rules (e.g. {@link ngCloak} and {@link ngHide}). To make these\n * directives work when a CSP rule is blocking inline styles, you must link to the `angular-csp.css`\n * in your HTML manually. (This CSP rule can be disabled with the CSP keyword `unsafe-inline`, but\n * it is generally not recommended as it would weaken the protections offered by CSP.)\n *\n * If you do not provide `ngCsp` then AngularJS tries to autodetect if CSP is blocking dynamic code\n * creation from strings (e.g., `unsafe-eval` not specified in CSP header) and automatically\n * deactivates this feature in the {@link $parse} service. This autodetection, however, triggers a\n * CSP error to be logged in the console:\n *\n * ```\n * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of\n * script in the following Content Security Policy directive: \"default-src 'self'\". Note that\n * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.\n * ```\n *\n * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`\n * directive on an element of the HTML document that appears before the `<script>` tag that loads\n * the `angular.js` file.\n *\n * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*\n *\n * You can specify which of the CSP related AngularJS features should be deactivated by providing\n * a value for the `ng-csp` attribute. The options are as follows:\n *\n * * no-inline-style: this stops AngularJS from injecting CSS styles into the DOM\n *\n * * no-unsafe-eval: this stops AngularJS from optimizing $parse with unsafe eval of strings\n *\n * You can use these values in the following combinations:\n *\n *\n * * No declaration means that AngularJS will assume that you can do inline styles, but it will do\n * a runtime check for unsafe-eval. E.g. `<body>`. This is backwardly compatible with previous\n * versions of AngularJS.\n *\n * * A simple `ng-csp` (or `data-ng-csp`) attribute will tell AngularJS to deactivate both inline\n * styles and unsafe eval. E.g. `<body ng-csp>`. This is backwardly compatible with previous\n * versions of AngularJS.\n *\n * * Specifying only `no-unsafe-eval` tells AngularJS that we must not use eval, but that we can\n * inject inline styles. E.g. `<body ng-csp=\"no-unsafe-eval\">`.\n *\n * * Specifying only `no-inline-style` tells AngularJS that we must not inject styles, but that we can\n * run eval - no automatic check for unsafe eval will occur. E.g. `<body ng-csp=\"no-inline-style\">`\n *\n * * Specifying both `no-unsafe-eval` and `no-inline-style` tells AngularJS that we must not inject\n * styles nor use eval, which is the same as an empty: ng-csp.\n * E.g.`<body ng-csp=\"no-inline-style;no-unsafe-eval\">`\n *\n * @example\n *\n * This example shows how to apply the `ngCsp` directive to the `html` tag.\n   ```html\n     <!doctype html>\n     <html ng-app ng-csp>\n     ...\n     ...\n     </html>\n   ```\n\n  <!-- Note: the `.csp` suffix in the example name triggers CSP mode in our http server! -->\n  <example name=\"example.csp\" module=\"cspExample\" ng-csp=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"MainController as ctrl\">\n        <div>\n          <button ng-click=\"ctrl.inc()\" id=\"inc\">Increment</button>\n          <span id=\"counter\">\n            {{ctrl.counter}}\n          </span>\n        </div>\n\n        <div>\n          <button ng-click=\"ctrl.evil()\" id=\"evil\">Evil</button>\n          <span id=\"evilError\">\n            {{ctrl.evilError}}\n          </span>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n       angular.module('cspExample', [])\n         .controller('MainController', function MainController() {\n            this.counter = 0;\n            this.inc = function() {\n              this.counter++;\n            };\n            this.evil = function() {\n              try {\n                eval('1+2'); // eslint-disable-line no-eval\n              } catch (e) {\n                this.evilError = e.message;\n              }\n            };\n          });\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var util, webdriver;\n\n      var incBtn = element(by.id('inc'));\n      var counter = element(by.id('counter'));\n      var evilBtn = element(by.id('evil'));\n      var evilError = element(by.id('evilError'));\n\n      function getAndClearSevereErrors() {\n        return browser.manage().logs().get('browser').then(function(browserLog) {\n          return browserLog.filter(function(logEntry) {\n            return logEntry.level.value > webdriver.logging.Level.WARNING.value;\n          });\n        });\n      }\n\n      function clearErrors() {\n        getAndClearSevereErrors();\n      }\n\n      function expectNoErrors() {\n        getAndClearSevereErrors().then(function(filteredLog) {\n          expect(filteredLog.length).toEqual(0);\n          if (filteredLog.length) {\n            console.log('browser console errors: ' + util.inspect(filteredLog));\n          }\n        });\n      }\n\n      function expectError(regex) {\n        getAndClearSevereErrors().then(function(filteredLog) {\n          var found = false;\n          filteredLog.forEach(function(log) {\n            if (log.message.match(regex)) {\n              found = true;\n            }\n          });\n          if (!found) {\n            throw new Error('expected an error that matches ' + regex);\n          }\n        });\n      }\n\n      beforeEach(function() {\n        util = require('util');\n        webdriver = require('selenium-webdriver');\n      });\n\n      // For now, we only test on Chrome,\n      // as Safari does not load the page with Protractor's injected scripts,\n      // and Firefox webdriver always disables content security policy (#6358)\n      if (browser.params.browser !== 'chrome') {\n        return;\n      }\n\n      it('should not report errors when the page is loaded', function() {\n        // clear errors so we are not dependent on previous tests\n        clearErrors();\n        // Need to reload the page as the page is already loaded when\n        // we come here\n        browser.driver.getCurrentUrl().then(function(url) {\n          browser.get(url);\n        });\n        expectNoErrors();\n      });\n\n      it('should evaluate expressions', function() {\n        expect(counter.getText()).toEqual('0');\n        incBtn.click();\n        expect(counter.getText()).toEqual('1');\n        expectNoErrors();\n      });\n\n      it('should throw and report an error when using \"eval\"', function() {\n        evilBtn.click();\n        expect(evilError.getText()).toMatch(/Content Security Policy/);\n        expectError(/Content Security Policy/);\n      });\n    </file>\n  </example>\n  */\n\n// `ngCsp` is not implemented as a proper directive any more, because we need it be processed while\n// we bootstrap the app (before `$parse` is instantiated). For this reason, we just have the `csp()`\n// fn that looks for the `ng-csp` attribute anywhere in the current doc.\n\n/**\n * @ngdoc directive\n * @name ngClick\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The ngClick directive allows you to specify custom behavior when\n * an element is clicked.\n *\n * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon\n * click. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-click\">\n     <file name=\"index.html\">\n      <button ng-click=\"count = count + 1\" ng-init=\"count=0\">\n        Increment\n      </button>\n      <span>\n        count: {{count}}\n      </span>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-click', function() {\n         expect(element(by.binding('count')).getText()).toMatch('0');\n         element(by.css('button')).click();\n         expect(element(by.binding('count')).getText()).toMatch('1');\n       });\n     </file>\n   </example>\n */\n/*\n * A collection of directives that allows creation of custom event handlers that are defined as\n * AngularJS expressions and are compiled and executed within the current scope.\n */\nvar ngEventDirectives = {};\n\n// For events that might fire synchronously during DOM manipulation\n// we need to execute their event handlers asynchronously using $evalAsync,\n// so that they are not executed in an inconsistent state.\nvar forceAsyncEvents = {\n  'blur': true,\n  'focus': true\n};\nforEach(\n  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),\n  function(eventName) {\n    var directiveName = directiveNormalize('ng-' + eventName);\n    ngEventDirectives[directiveName] = ['$parse', '$rootScope', '$exceptionHandler', function($parse, $rootScope, $exceptionHandler) {\n      return createEventDirective($parse, $rootScope, $exceptionHandler, directiveName, eventName, forceAsyncEvents[eventName]);\n    }];\n  }\n);\n\nfunction createEventDirective($parse, $rootScope, $exceptionHandler, directiveName, eventName, forceAsync) {\n  return {\n    restrict: 'A',\n    compile: function($element, attr) {\n      // NOTE:\n      // We expose the powerful `$event` object on the scope that provides access to the Window,\n      // etc. This is OK, because expressions are not sandboxed any more (and the expression\n      // sandbox was never meant to be a security feature anyway).\n      var fn = $parse(attr[directiveName]);\n      return function ngEventHandler(scope, element) {\n        element.on(eventName, function(event) {\n          var callback = function() {\n            fn(scope, {$event: event});\n          };\n\n          if (!$rootScope.$$phase) {\n            scope.$apply(callback);\n          } else if (forceAsync) {\n            scope.$evalAsync(callback);\n          } else {\n            try {\n              callback();\n            } catch (error) {\n              $exceptionHandler(error);\n            }\n          }\n        });\n      };\n    }\n  };\n}\n\n/**\n * @ngdoc directive\n * @name ngDblclick\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.\n *\n * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon\n * a dblclick. (The Event object is available as `$event`)\n *\n * @example\n   <example name=\"ng-dblclick\">\n     <file name=\"index.html\">\n      <button ng-dblclick=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on double click)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousedown\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The ngMousedown directive allows you to specify custom behavior on mousedown event.\n *\n * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon\n * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousedown\">\n     <file name=\"index.html\">\n      <button ng-mousedown=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse down)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseup\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseup event.\n *\n * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon\n * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseup\">\n     <file name=\"index.html\">\n      <button ng-mouseup=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse up)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngMouseover\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseover event.\n *\n * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon\n * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseover\">\n     <file name=\"index.html\">\n      <button ng-mouseover=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse is over)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseenter\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseenter event.\n *\n * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon\n * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseenter\">\n     <file name=\"index.html\">\n      <button ng-mouseenter=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse enters)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseleave\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseleave event.\n *\n * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon\n * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseleave\">\n     <file name=\"index.html\">\n      <button ng-mouseleave=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse leaves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousemove\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mousemove event.\n *\n * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon\n * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousemove\">\n     <file name=\"index.html\">\n      <button ng-mousemove=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse moves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeydown\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on keydown event.\n *\n * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon\n * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keydown\">\n     <file name=\"index.html\">\n      <input ng-keydown=\"count = count + 1\" ng-init=\"count=0\">\n      key down count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeyup\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on keyup event.\n *\n * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon\n * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keyup\">\n     <file name=\"index.html\">\n       <p>Typing in the input box below updates the key count</p>\n       <input ng-keyup=\"count = count + 1\" ng-init=\"count=0\"> key up count: {{count}}\n\n       <p>Typing in the input box below updates the keycode</p>\n       <input ng-keyup=\"event=$event\">\n       <p>event keyCode: {{ event.keyCode }}</p>\n       <p>event altKey: {{ event.altKey }}</p>\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeypress\n * @restrict A\n * @element ANY\n *\n * @description\n * Specify custom behavior on keypress event.\n *\n * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon\n * keypress. ({@link guide/expression#-event- Event object is available as `$event`}\n * and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keypress\">\n     <file name=\"index.html\">\n      <input ng-keypress=\"count = count + 1\" ng-init=\"count=0\">\n      key press count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSubmit\n * @restrict A\n * @element form\n * @priority 0\n *\n * @description\n * Enables binding AngularJS expressions to onsubmit events.\n *\n * Additionally it prevents the default action (which for form means sending the request to the\n * server and reloading the current page), but only if the form does not contain `action`,\n * `data-action`, or `x-action` attributes.\n *\n * <div class=\"alert alert-warning\">\n * **Warning:** Be careful not to cause \"double-submission\" by using both the `ngClick` and\n * `ngSubmit` handlers together. See the\n * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}\n * for a detailed discussion of when `ngSubmit` may be triggered.\n * </div>\n *\n * @param {expression} ngSubmit {@link guide/expression Expression} to eval.\n * ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example module=\"submitExample\" name=\"ng-submit\">\n     <file name=\"index.html\">\n      <script>\n        angular.module('submitExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.list = [];\n            $scope.text = 'hello';\n            $scope.submit = function() {\n              if ($scope.text) {\n                $scope.list.push(this.text);\n                $scope.text = '';\n              }\n            };\n          }]);\n      </script>\n      <form ng-submit=\"submit()\" ng-controller=\"ExampleController\">\n        Enter text and hit enter:\n        <input type=\"text\" ng-model=\"text\" name=\"text\" />\n        <input type=\"submit\" id=\"submit\" value=\"Submit\" />\n        <pre>list={{list}}</pre>\n      </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-submit', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n         expect(element(by.model('text')).getAttribute('value')).toBe('');\n       });\n       it('should ignore empty strings', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n        });\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngFocus\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on focus event.\n *\n * Note: As the `focus` event is executed synchronously when calling `input.focus()`\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon\n * focus. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngBlur\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on blur event.\n *\n * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when\n * an element has lost focus.\n *\n * Note: As the `blur` event is executed synchronously also during DOM manipulations\n * (e.g. removing a focussed input),\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon\n * blur. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngCopy\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on copy event.\n *\n * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon\n * copy. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-copy\">\n     <file name=\"index.html\">\n      <input ng-copy=\"copied=true\" ng-init=\"copied=false; value='copy me'\" ng-model=\"value\">\n      copied: {{copied}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngCut\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on cut event.\n *\n * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon\n * cut. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-cut\">\n     <file name=\"index.html\">\n      <input ng-cut=\"cut=true\" ng-init=\"cut=false; value='cut me'\" ng-model=\"value\">\n      cut: {{cut}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngPaste\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on paste event.\n *\n * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon\n * paste. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-paste\">\n     <file name=\"index.html\">\n      <input ng-paste=\"paste=true\" ng-init=\"paste=false\" placeholder='paste here'>\n      pasted: {{paste}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngIf\n * @restrict A\n * @multiElement\n *\n * @description\n * The `ngIf` directive removes or recreates a portion of the DOM tree based on an\n * {expression}. If the expression assigned to `ngIf` evaluates to a false\n * value then the element is removed from the DOM, otherwise a clone of the\n * element is reinserted into the DOM.\n *\n * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the\n * element in the DOM rather than changing its visibility via the `display` css property.  A common\n * case when this difference is significant is when using css selectors that rely on an element's\n * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.\n *\n * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope\n * is created when the element is restored.  The scope created within `ngIf` inherits from\n * its parent scope using\n * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).\n * An important implication of this is if `ngModel` is used within `ngIf` to bind to\n * a javascript primitive defined in the parent scope. In this case any modifications made to the\n * variable within the child scope will override (hide) the value in the parent scope.\n *\n * Also, `ngIf` recreates elements using their compiled state. An example of this behavior\n * is if an element's class attribute is directly modified after it's compiled, using something like\n * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element\n * the added class will be lost because the original compiled state is used to regenerate the element.\n *\n * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`\n * and `leave` effects.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container |\n * | {@link ng.$animate#leave leave}  | just before the `ngIf` contents are removed from the DOM |\n *\n * @element ANY\n * @scope\n * @priority 600\n * @param {expression} ngIf If the {@link guide/expression expression} is falsy then\n *     the element is removed from the DOM tree. If it is truthy a copy of the compiled\n *     element is added to the DOM tree.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-if\">\n    <file name=\"index.html\">\n      <label>Click me: <input type=\"checkbox\" ng-model=\"checked\" ng-init=\"checked=true\" /></label><br/>\n      Show when checked:\n      <span ng-if=\"checked\" class=\"animate-if\">\n        This is removed when the checkbox is unchecked.\n      </span>\n    </file>\n    <file name=\"animations.css\">\n      .animate-if {\n        background:white;\n        border:1px solid black;\n        padding:10px;\n      }\n\n      .animate-if.ng-enter, .animate-if.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n      }\n\n      .animate-if.ng-enter,\n      .animate-if.ng-leave.ng-leave-active {\n        opacity:0;\n      }\n\n      .animate-if.ng-leave,\n      .animate-if.ng-enter.ng-enter-active {\n        opacity:1;\n      }\n    </file>\n  </example>\n */\nvar ngIfDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    multiElement: true,\n    transclude: 'element',\n    priority: 600,\n    terminal: true,\n    restrict: 'A',\n    $$tlb: true,\n    link: function($scope, $element, $attr, ctrl, $transclude) {\n        var block, childScope, previousElements;\n        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {\n\n          if (value) {\n            if (!childScope) {\n              $transclude(function(clone, newScope) {\n                childScope = newScope;\n                clone[clone.length++] = $compile.$$createComment('end ngIf', $attr.ngIf);\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block = {\n                  clone: clone\n                };\n                $animate.enter(clone, $element.parent(), $element);\n              });\n            }\n          } else {\n            if (previousElements) {\n              previousElements.remove();\n              previousElements = null;\n            }\n            if (childScope) {\n              childScope.$destroy();\n              childScope = null;\n            }\n            if (block) {\n              previousElements = getBlockNodes(block.clone);\n              $animate.leave(previousElements).done(function(response) {\n                if (response !== false) previousElements = null;\n              });\n              block = null;\n            }\n          }\n        });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngInclude\n * @restrict ECA\n * @scope\n * @priority -400\n *\n * @description\n * Fetches, compiles and includes an external HTML fragment.\n *\n * By default, the template URL is restricted to the same domain and protocol as the\n * application document. This is done by calling {@link $sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols\n * you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or\n * {@link $sce#trustAsResourceUrl wrap them} as trusted values. Refer to AngularJS's {@link\n * ng.$sce Strict Contextual Escaping}.\n *\n * In addition, the browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy may further restrict whether the template is successfully loaded.\n * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`\n * access on some browsers.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the expression changes, on the new include |\n * | {@link ng.$animate#leave leave}  | when the expression changes, on the old include |\n *\n * The enter and leave animation occur concurrently.\n *\n * @param {string} ngInclude|src AngularJS expression evaluating to URL. If the source is a string constant,\n *                 make sure you wrap it in **single** quotes, e.g. `src=\"'myPartialTemplate.html'\"`.\n * @param {string=} onload Expression to evaluate when a new partial is loaded.\n *                  <div class=\"alert alert-warning\">\n *                  **Note:** When using onload on SVG elements in IE11, the browser will try to call\n *                  a function with the name on the window element, which will usually throw a\n *                  \"function is undefined\" error. To fix this, you can instead use `data-onload` or a\n *                  different form that {@link guide/directive#normalization matches} `onload`.\n *                  </div>\n   *\n * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the content is loaded.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.\n *\n * @example\n  <example module=\"includeExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-include\">\n    <file name=\"index.html\">\n     <div ng-controller=\"ExampleController\">\n       <select ng-model=\"template\" ng-options=\"t.name for t in templates\">\n        <option value=\"\">(blank)</option>\n       </select>\n       url of the template: <code>{{template.url}}</code>\n       <hr/>\n       <div class=\"slide-animate-container\">\n         <div class=\"slide-animate\" ng-include=\"template.url\"></div>\n       </div>\n     </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('includeExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.templates =\n            [{ name: 'template1.html', url: 'template1.html'},\n             { name: 'template2.html', url: 'template2.html'}];\n          $scope.template = $scope.templates[0];\n        }]);\n     </file>\n    <file name=\"template1.html\">\n      Content of template1.html\n    </file>\n    <file name=\"template2.html\">\n      Content of template2.html\n    </file>\n    <file name=\"animations.css\">\n      .slide-animate-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .slide-animate {\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter, .slide-animate.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n        display:block;\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter {\n        top:-50px;\n      }\n      .slide-animate.ng-enter.ng-enter-active {\n        top:0;\n      }\n\n      .slide-animate.ng-leave {\n        top:0;\n      }\n      .slide-animate.ng-leave.ng-leave-active {\n        top:50px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var templateSelect = element(by.model('template'));\n      var includeElem = element(by.css('[ng-include]'));\n\n      it('should load template1.html', function() {\n        expect(includeElem.getText()).toMatch(/Content of template1.html/);\n      });\n\n      it('should load template2.html', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          // See https://github.com/angular/protractor/issues/480\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(2).click();\n        expect(includeElem.getText()).toMatch(/Content of template2.html/);\n      });\n\n      it('should change to blank', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(0).click();\n        expect(includeElem.isPresent()).toBe(false);\n      });\n    </file>\n  </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentRequested\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted every time the ngInclude content is requested.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentLoaded\n * @eventType emit on the current ngInclude scope\n * @description\n * Emitted every time the ngInclude content is reloaded.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentError\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted when a template HTTP request yields an erroneous response (status < 200 || status > 299)\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\nvar ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',\n                  function($templateRequest,   $anchorScroll,   $animate) {\n  return {\n    restrict: 'ECA',\n    priority: 400,\n    terminal: true,\n    transclude: 'element',\n    controller: angular.noop,\n    compile: function(element, attr) {\n      var srcExp = attr.ngInclude || attr.src,\n          onloadExp = attr.onload || '',\n          autoScrollExp = attr.autoscroll;\n\n      return function(scope, $element, $attr, ctrl, $transclude) {\n        var changeCounter = 0,\n            currentScope,\n            previousElement,\n            currentElement;\n\n        var cleanupLastIncludeContent = function() {\n          if (previousElement) {\n            previousElement.remove();\n            previousElement = null;\n          }\n          if (currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if (currentElement) {\n            $animate.leave(currentElement).done(function(response) {\n              if (response !== false) previousElement = null;\n            });\n            previousElement = currentElement;\n            currentElement = null;\n          }\n        };\n\n        scope.$watch(srcExp, function ngIncludeWatchAction(src) {\n          var afterAnimation = function(response) {\n            if (response !== false && isDefined(autoScrollExp) &&\n              (!autoScrollExp || scope.$eval(autoScrollExp))) {\n                $anchorScroll();\n            }\n          };\n          var thisChangeId = ++changeCounter;\n\n          if (src) {\n            //set the 2nd param to true to ignore the template request error so that the inner\n            //contents and scope can be cleaned up.\n            $templateRequest(src, true).then(function(response) {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId !== changeCounter) return;\n              var newScope = scope.$new();\n              ctrl.template = response;\n\n              // Note: This will also link all children of ng-include that were contained in the original\n              // html. If that content contains controllers, ... they could pollute/change the scope.\n              // However, using ng-include on an element with additional content does not make sense...\n              // Note: We can't remove them in the cloneAttchFn of $transclude as that\n              // function is called before linking the content, which would apply child\n              // directives to non existing elements.\n              var clone = $transclude(newScope, function(clone) {\n                cleanupLastIncludeContent();\n                $animate.enter(clone, null, $element).done(afterAnimation);\n              });\n\n              currentScope = newScope;\n              currentElement = clone;\n\n              currentScope.$emit('$includeContentLoaded', src);\n              scope.$eval(onloadExp);\n            }, function() {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId === changeCounter) {\n                cleanupLastIncludeContent();\n                scope.$emit('$includeContentError', src);\n              }\n            });\n            scope.$emit('$includeContentRequested', src);\n          } else {\n            cleanupLastIncludeContent();\n            ctrl.template = null;\n          }\n        });\n      };\n    }\n  };\n}];\n\n// This directive is called during the $transclude call of the first `ngInclude` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngInclude\n// is called.\nvar ngIncludeFillContentDirective = ['$compile',\n  function($compile) {\n    return {\n      restrict: 'ECA',\n      priority: -400,\n      require: 'ngInclude',\n      link: function(scope, $element, $attr, ctrl) {\n        if (toString.call($element[0]).match(/SVG/)) {\n          // WebKit: https://bugs.webkit.org/show_bug.cgi?id=135698 --- SVG elements do not\n          // support innerHTML, so detect this here and try to generate the contents\n          // specially.\n          $element.empty();\n          $compile(jqLiteBuildFragment(ctrl.template, window.document).childNodes)(scope,\n              function namespaceAdaptedClone(clone) {\n            $element.append(clone);\n          }, {futureParentElement: $element});\n          return;\n        }\n\n        $element.html(ctrl.template);\n        $compile($element.contents())(scope);\n      }\n    };\n  }];\n\n/**\n * @ngdoc directive\n * @name ngInit\n * @restrict AC\n * @priority 450\n * @element ANY\n *\n * @param {expression} ngInit {@link guide/expression Expression} to eval.\n *\n * @description\n * The `ngInit` directive allows you to evaluate an expression in the\n * current scope.\n *\n * <div class=\"alert alert-danger\">\n * This directive can be abused to add unnecessary amounts of logic into your templates.\n * There are only a few appropriate uses of `ngInit`:\n * <ul>\n *   <li>aliasing special properties of {@link ng.directive:ngRepeat `ngRepeat`},\n *     as seen in the demo below.</li>\n *   <li>initializing data during development, or for examples, as seen throughout these docs.</li>\n *   <li>injecting data via server side scripting.</li>\n * </ul>\n *\n * Besides these few cases, you should use {@link guide/component Components} or\n * {@link guide/controller Controllers} rather than `ngInit` to initialize values on a scope.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note**: If you have assignment in `ngInit` along with a {@link ng.$filter `filter`}, make\n * sure you have parentheses to ensure correct operator precedence:\n * <pre class=\"prettyprint\">\n * `<div ng-init=\"test1 = ($index | toString)\"></div>`\n * </pre>\n * </div>\n *\n * @example\n   <example module=\"initExample\" name=\"ng-init\">\n     <file name=\"index.html\">\n   <script>\n     angular.module('initExample', [])\n       .controller('ExampleController', ['$scope', function($scope) {\n         $scope.list = [['a', 'b'], ['c', 'd']];\n       }]);\n   </script>\n   <div ng-controller=\"ExampleController\">\n     <div ng-repeat=\"innerList in list\" ng-init=\"outerIndex = $index\">\n       <div ng-repeat=\"value in innerList\" ng-init=\"innerIndex = $index\">\n          <span class=\"example-init\">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>\n       </div>\n     </div>\n   </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should alias index positions', function() {\n         var elements = element.all(by.css('.example-init'));\n         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');\n         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');\n         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');\n         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');\n       });\n     </file>\n   </example>\n */\nvar ngInitDirective = ngDirective({\n  priority: 450,\n  compile: function() {\n    return {\n      pre: function(scope, element, attrs) {\n        scope.$eval(attrs.ngInit);\n      }\n    };\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngList\n * @restrict A\n * @priority 100\n *\n * @param {string=} ngList optional delimiter that should be used to split the value.\n *\n * @description\n * Text input that converts between a delimited string and an array of strings. The default\n * delimiter is a comma followed by a space - equivalent to `ng-list=\", \"`. You can specify a custom\n * delimiter as the value of the `ngList` attribute - for example, `ng-list=\" | \"`.\n *\n * The behaviour of the directive is affected by the use of the `ngTrim` attribute.\n * * If `ngTrim` is set to `\"false\"` then whitespace around both the separator and each\n *   list item is respected. This implies that the user of the directive is responsible for\n *   dealing with whitespace but also allows you to use whitespace as a delimiter, such as a\n *   tab or newline character.\n * * Otherwise whitespace around the delimiter is ignored when splitting (although it is respected\n *   when joining the list items back together) and whitespace around each list item is stripped\n *   before it is added to the model.\n *\n * @example\n * ### Validation\n *\n * <example name=\"ngList-directive\" module=\"listExample\">\n *   <file name=\"app.js\">\n *      angular.module('listExample', [])\n *        .controller('ExampleController', ['$scope', function($scope) {\n *          $scope.names = ['morpheus', 'neo', 'trinity'];\n *        }]);\n *   </file>\n *   <file name=\"index.html\">\n *    <form name=\"myForm\" ng-controller=\"ExampleController\">\n *      <label>List: <input name=\"namesInput\" ng-model=\"names\" ng-list required></label>\n *      <span role=\"alert\">\n *        <span class=\"error\" ng-show=\"myForm.namesInput.$error.required\">\n *        Required!</span>\n *      </span>\n *      <br>\n *      <tt>names = {{names}}</tt><br/>\n *      <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>\n *      <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>\n *      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n *      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n *     </form>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var listInput = element(by.model('names'));\n *     var names = element(by.exactBinding('names'));\n *     var valid = element(by.binding('myForm.namesInput.$valid'));\n *     var error = element(by.css('span.error'));\n *\n *     it('should initialize to model', function() {\n *       expect(names.getText()).toContain('[\"morpheus\",\"neo\",\"trinity\"]');\n *       expect(valid.getText()).toContain('true');\n *       expect(error.getCssValue('display')).toBe('none');\n *     });\n *\n *     it('should be invalid if empty', function() {\n *       listInput.clear();\n *       listInput.sendKeys('');\n *\n *       expect(names.getText()).toContain('');\n *       expect(valid.getText()).toContain('false');\n *       expect(error.getCssValue('display')).not.toBe('none');\n *     });\n *   </file>\n * </example>\n *\n * @example\n * ### Splitting on newline\n *\n * <example name=\"ngList-directive-newlines\">\n *   <file name=\"index.html\">\n *    <textarea ng-model=\"list\" ng-list=\"&#10;\" ng-trim=\"false\"></textarea>\n *    <pre>{{ list | json }}</pre>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it(\"should split the text by newlines\", function() {\n *       var listInput = element(by.model('list'));\n *       var output = element(by.binding('list | json'));\n *       listInput.sendKeys('abc\\ndef\\nghi');\n *       expect(output.getText()).toContain('[\\n  \"abc\",\\n  \"def\",\\n  \"ghi\"\\n]');\n *     });\n *   </file>\n * </example>\n *\n */\nvar ngListDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    require: 'ngModel',\n    link: function(scope, element, attr, ctrl) {\n      var ngList = attr.ngList || ', ';\n      var trimValues = attr.ngTrim !== 'false';\n      var separator = trimValues ? trim(ngList) : ngList;\n\n      var parse = function(viewValue) {\n        // If the viewValue is invalid (say required but empty) it will be `undefined`\n        if (isUndefined(viewValue)) return;\n\n        var list = [];\n\n        if (viewValue) {\n          forEach(viewValue.split(separator), function(value) {\n            if (value) list.push(trimValues ? trim(value) : value);\n          });\n        }\n\n        return list;\n      };\n\n      ctrl.$parsers.push(parse);\n      ctrl.$formatters.push(function(value) {\n        if (isArray(value)) {\n          return value.join(ngList);\n        }\n\n        return undefined;\n      });\n\n      // Override the standard $isEmpty because an empty array means the input is empty.\n      ctrl.$isEmpty = function(value) {\n        return !value || !value.length;\n      };\n    }\n  };\n};\n\n/* global VALID_CLASS: true,\n  INVALID_CLASS: true,\n  PRISTINE_CLASS: true,\n  DIRTY_CLASS: true,\n  UNTOUCHED_CLASS: true,\n  TOUCHED_CLASS: true,\n  PENDING_CLASS: true,\n  addSetValidityMethod: true,\n  setupValidity: true,\n  defaultModelOptions: false\n*/\n\n\nvar VALID_CLASS = 'ng-valid',\n    INVALID_CLASS = 'ng-invalid',\n    PRISTINE_CLASS = 'ng-pristine',\n    DIRTY_CLASS = 'ng-dirty',\n    UNTOUCHED_CLASS = 'ng-untouched',\n    TOUCHED_CLASS = 'ng-touched',\n    EMPTY_CLASS = 'ng-empty',\n    NOT_EMPTY_CLASS = 'ng-not-empty';\n\nvar ngModelMinErr = minErr('ngModel');\n\n/**\n * @ngdoc type\n * @name ngModel.NgModelController\n * @property {*} $viewValue The actual value from the control's view. For `input` elements, this is a\n * String. See {@link ngModel.NgModelController#$setViewValue} for information about when the $viewValue\n * is set.\n *\n * @property {*} $modelValue The value in the model that the control is bound to.\n *\n * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever\n *  the control updates the ngModelController with a new {@link ngModel.NgModelController#$viewValue\n    `$viewValue`} from the DOM, usually via user input.\n    See {@link ngModel.NgModelController#$setViewValue `$setViewValue()`} for a detailed lifecycle explanation.\n    Note that the `$parsers` are not called when the bound ngModel expression changes programmatically.\n\n  The functions are called in array order, each passing\n    its return value through to the next. The last return value is forwarded to the\n    {@link ngModel.NgModelController#$validators `$validators`} collection.\n\n  Parsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue\n    `$viewValue`}.\n\n  Returning `undefined` from a parser means a parse error occurred. In that case,\n    no {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel`\n    will be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`}\n    is set to `true`. The parse error is stored in `ngModel.$error.parse`.\n\n  This simple example shows a parser that would convert text input value to lowercase:\n * ```js\n * function parse(value) {\n *   if (value) {\n *     return value.toLowerCase();\n *   }\n * }\n * ngModelController.$parsers.push(parse);\n * ```\n\n *\n * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever\n    the bound ngModel expression changes programmatically. The `$formatters` are not called when the\n    value of the control is changed by user interaction.\n\n  Formatters are used to format / convert the {@link ngModel.NgModelController#$modelValue\n    `$modelValue`} for display in the control.\n\n  The functions are called in reverse array order, each passing the value through to the\n    next. The last return value is used as the actual DOM value.\n\n  This simple example shows a formatter that would convert the model value to uppercase:\n\n * ```js\n * function format(value) {\n *   if (value) {\n *     return value.toUpperCase();\n *   }\n * }\n * ngModel.$formatters.push(format);\n * ```\n *\n * @property {Object.<string, function>} $validators A collection of validators that are applied\n *      whenever the model value changes. The key value within the object refers to the name of the\n *      validator while the function refers to the validation operation. The validation operation is\n *      provided with the model value as an argument and must return a true or false value depending\n *      on the response of that validation.\n *\n * ```js\n * ngModel.$validators.validCharacters = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *   return /[0-9]+/.test(value) &&\n *          /[a-z]+/.test(value) &&\n *          /[A-Z]+/.test(value) &&\n *          /\\W+/.test(value);\n * };\n * ```\n *\n * @property {Object.<string, function>} $asyncValidators A collection of validations that are expected to\n *      perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided\n *      is expected to return a promise when it is run during the model validation process. Once the promise\n *      is delivered then the validation status will be set to true when fulfilled and false when rejected.\n *      When the asynchronous validators are triggered, each of the validators will run in parallel and the model\n *      value will only be updated once all validators have been fulfilled. As long as an asynchronous validator\n *      is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators\n *      will only run once all synchronous validators have passed.\n *\n * Please note that if $http is used then it is important that the server returns a success HTTP response code\n * in order to fulfill the validation and a status level of `4xx` in order to reject the validation.\n *\n * ```js\n * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *\n *   // Lookup user by username\n *   return $http.get('/api/users/' + value).\n *      then(function resolved() {\n *        //username exists, this means validation fails\n *        return $q.reject('exists');\n *      }, function rejected() {\n *        //username does not exist, therefore this validation passes\n *        return true;\n *      });\n * };\n * ```\n *\n * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever\n *     a change to {@link ngModel.NgModelController#$viewValue `$viewValue`} has caused a change\n *     to {@link ngModel.NgModelController#$modelValue `$modelValue`}.\n *     It is called with no arguments, and its return value is ignored.\n *     This can be used in place of additional $watches against the model value.\n *\n * @property {Object} $error An object hash with all failing validator ids as keys.\n * @property {Object} $pending An object hash with all pending validator ids as keys.\n *\n * @property {boolean} $untouched True if control has not lost focus yet.\n * @property {boolean} $touched True if control has lost focus.\n * @property {boolean} $pristine True if user has not interacted with the control yet.\n * @property {boolean} $dirty True if user has already interacted with the control.\n * @property {boolean} $valid True if there is no error.\n * @property {boolean} $invalid True if at least one error on the control.\n * @property {string} $name The name attribute of the control.\n *\n * @description\n *\n * `NgModelController` provides API for the {@link ngModel `ngModel`} directive.\n * The controller contains services for data-binding, validation, CSS updates, and value formatting\n * and parsing. It purposefully does not contain any logic which deals with DOM rendering or\n * listening to DOM events.\n * Such DOM related logic should be provided by other directives which make use of\n * `NgModelController` for data-binding to control elements.\n * AngularJS provides this DOM logic for most {@link input `input`} elements.\n * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example\n * custom control example} that uses `ngModelController` to bind to `contenteditable` elements.\n *\n * @example\n * ### Custom Control Example\n * This example shows how to use `NgModelController` with a custom control to achieve\n * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)\n * collaborate together to achieve the desired result.\n *\n * `contenteditable` is an HTML5 attribute, which tells the browser to let the element\n * contents be edited in place by the user.\n *\n * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}\n * module to automatically remove \"bad\" content like inline event listener (e.g. `<span onclick=\"...\">`).\n * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks\n * that content using the `$sce` service.\n *\n * <example name=\"NgModelController\" module=\"customControl\" deps=\"angular-sanitize.js\">\n    <file name=\"style.css\">\n      [contenteditable] {\n        border: 1px solid black;\n        background-color: white;\n        min-height: 20px;\n      }\n\n      .ng-invalid {\n        border: 1px solid red;\n      }\n\n    </file>\n    <file name=\"script.js\">\n      angular.module('customControl', ['ngSanitize']).\n        directive('contenteditable', ['$sce', function($sce) {\n          return {\n            restrict: 'A', // only activate on element attribute\n            require: '?ngModel', // get a hold of NgModelController\n            link: function(scope, element, attrs, ngModel) {\n              if (!ngModel) return; // do nothing if no ng-model\n\n              // Specify how UI should be updated\n              ngModel.$render = function() {\n                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));\n              };\n\n              // Listen for change events to enable binding\n              element.on('blur keyup change', function() {\n                scope.$evalAsync(read);\n              });\n              read(); // initialize\n\n              // Write data to the model\n              function read() {\n                var html = element.html();\n                // When we clear the content editable the browser leaves a <br> behind\n                // If strip-br attribute is provided then we strip this out\n                if (attrs.stripBr && html === '<br>') {\n                  html = '';\n                }\n                ngModel.$setViewValue(html);\n              }\n            }\n          };\n        }]);\n    </file>\n    <file name=\"index.html\">\n      <form name=\"myForm\">\n       <div contenteditable\n            name=\"myWidget\" ng-model=\"userContent\"\n            strip-br=\"true\"\n            required>Change me!</div>\n        <span ng-show=\"myForm.myWidget.$error.required\">Required!</span>\n       <hr>\n       <textarea ng-model=\"userContent\" aria-label=\"Dynamic textarea\"></textarea>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n    it('should data-bind and become invalid', function() {\n      if (browser.params.browser === 'safari' || browser.params.browser === 'firefox') {\n        // SafariDriver can't handle contenteditable\n        // and Firefox driver can't clear contenteditables very well\n        return;\n      }\n      var contentEditable = element(by.css('[contenteditable]'));\n      var content = 'Change me!';\n\n      expect(contentEditable.getText()).toEqual(content);\n\n      contentEditable.clear();\n      contentEditable.sendKeys(protractor.Key.BACK_SPACE);\n      expect(contentEditable.getText()).toEqual('');\n      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);\n    });\n    </file>\n * </example>\n *\n *\n */\nNgModelController.$inject = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$q', '$interpolate'];\nfunction NgModelController($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $q, $interpolate) {\n  this.$viewValue = Number.NaN;\n  this.$modelValue = Number.NaN;\n  this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity.\n  this.$validators = {};\n  this.$asyncValidators = {};\n  this.$parsers = [];\n  this.$formatters = [];\n  this.$viewChangeListeners = [];\n  this.$untouched = true;\n  this.$touched = false;\n  this.$pristine = true;\n  this.$dirty = false;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$error = {}; // keep invalid keys here\n  this.$$success = {}; // keep valid keys here\n  this.$pending = undefined; // keep pending keys here\n  this.$name = $interpolate($attr.name || '', false)($scope);\n  this.$$parentForm = nullFormCtrl;\n  this.$options = defaultModelOptions;\n  this.$$updateEvents = '';\n  // Attach the correct context to the event handler function for updateOn\n  this.$$updateEventHandler = this.$$updateEventHandler.bind(this);\n\n  this.$$parsedNgModel = $parse($attr.ngModel);\n  this.$$parsedNgModelAssign = this.$$parsedNgModel.assign;\n  this.$$ngModelGet = this.$$parsedNgModel;\n  this.$$ngModelSet = this.$$parsedNgModelAssign;\n  this.$$pendingDebounce = null;\n  this.$$parserValid = undefined;\n  this.$$parserName = 'parse';\n\n  this.$$currentValidationRunId = 0;\n\n  this.$$scope = $scope;\n  this.$$rootScope = $scope.$root;\n  this.$$attr = $attr;\n  this.$$element = $element;\n  this.$$animate = $animate;\n  this.$$timeout = $timeout;\n  this.$$parse = $parse;\n  this.$$q = $q;\n  this.$$exceptionHandler = $exceptionHandler;\n\n  setupValidity(this);\n  setupModelWatcher(this);\n}\n\nNgModelController.prototype = {\n  $$initGetterSetters: function() {\n    if (this.$options.getOption('getterSetter')) {\n      var invokeModelGetter = this.$$parse(this.$$attr.ngModel + '()'),\n          invokeModelSetter = this.$$parse(this.$$attr.ngModel + '($$$p)');\n\n      this.$$ngModelGet = function($scope) {\n        var modelValue = this.$$parsedNgModel($scope);\n        if (isFunction(modelValue)) {\n          modelValue = invokeModelGetter($scope);\n        }\n        return modelValue;\n      };\n      this.$$ngModelSet = function($scope, newValue) {\n        if (isFunction(this.$$parsedNgModel($scope))) {\n          invokeModelSetter($scope, {$$$p: newValue});\n        } else {\n          this.$$parsedNgModelAssign($scope, newValue);\n        }\n      };\n    } else if (!this.$$parsedNgModel.assign) {\n      throw ngModelMinErr('nonassign', 'Expression \\'{0}\\' is non-assignable. Element: {1}',\n          this.$$attr.ngModel, startingTag(this.$$element));\n    }\n  },\n\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$render\n   *\n   * @description\n   * Called when the view needs to be updated. It is expected that the user of the ng-model\n   * directive will implement this method.\n   *\n   * The `$render()` method is invoked in the following situations:\n   *\n   * * `$rollbackViewValue()` is called.  If we are rolling back the view value to the last\n   *   committed value then `$render()` is called to update the input control.\n   * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and\n   *   the `$viewValue` are different from last time.\n   *\n   * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of\n   * `$modelValue` and `$viewValue` are actually different from their previous values. If `$modelValue`\n   * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be\n   * invoked if you only change a property on the objects.\n   */\n  $render: noop,\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$isEmpty\n   *\n   * @description\n   * This is called when we need to determine if the value of an input is empty.\n   *\n   * For instance, the required directive does this to work out if the input has data or not.\n   *\n   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.\n   *\n   * You can override this for input directives whose concept of being empty is different from the\n   * default. The `checkboxInputType` directive does this because in its case a value of `false`\n   * implies empty.\n   *\n   * @param {*} value The value of the input to check for emptiness.\n   * @returns {boolean} True if `value` is \"empty\".\n   */\n  $isEmpty: function(value) {\n    // eslint-disable-next-line no-self-compare\n    return isUndefined(value) || value === '' || value === null || value !== value;\n  },\n\n  $$updateEmptyClasses: function(value) {\n    if (this.$isEmpty(value)) {\n      this.$$animate.removeClass(this.$$element, NOT_EMPTY_CLASS);\n      this.$$animate.addClass(this.$$element, EMPTY_CLASS);\n    } else {\n      this.$$animate.removeClass(this.$$element, EMPTY_CLASS);\n      this.$$animate.addClass(this.$$element, NOT_EMPTY_CLASS);\n    }\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setPristine\n   *\n   * @description\n   * Sets the control to its pristine state.\n   *\n   * This method can be called to remove the `ng-dirty` class and set the control to its pristine\n   * state (`ng-pristine` class). A model is considered to be pristine when the control\n   * has not been changed from when first compiled.\n   */\n  $setPristine: function() {\n    this.$dirty = false;\n    this.$pristine = true;\n    this.$$animate.removeClass(this.$$element, DIRTY_CLASS);\n    this.$$animate.addClass(this.$$element, PRISTINE_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setDirty\n   *\n   * @description\n   * Sets the control to its dirty state.\n   *\n   * This method can be called to remove the `ng-pristine` class and set the control to its dirty\n   * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed\n   * from when first compiled.\n   */\n  $setDirty: function() {\n    this.$dirty = true;\n    this.$pristine = false;\n    this.$$animate.removeClass(this.$$element, PRISTINE_CLASS);\n    this.$$animate.addClass(this.$$element, DIRTY_CLASS);\n    this.$$parentForm.$setDirty();\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setUntouched\n   *\n   * @description\n   * Sets the control to its untouched state.\n   *\n   * This method can be called to remove the `ng-touched` class and set the control to its\n   * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched\n   * by default, however this function can be used to restore that state if the model has\n   * already been touched by the user.\n   */\n  $setUntouched: function() {\n    this.$touched = false;\n    this.$untouched = true;\n    this.$$animate.setClass(this.$$element, UNTOUCHED_CLASS, TOUCHED_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setTouched\n   *\n   * @description\n   * Sets the control to its touched state.\n   *\n   * This method can be called to remove the `ng-untouched` class and set the control to its\n   * touched state (`ng-touched` class). A model is considered to be touched when the user has\n   * first focused the control element and then shifted focus away from the control (blur event).\n   */\n  $setTouched: function() {\n    this.$touched = true;\n    this.$untouched = false;\n    this.$$animate.setClass(this.$$element, TOUCHED_CLASS, UNTOUCHED_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$rollbackViewValue\n   *\n   * @description\n   * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`,\n   * which may be caused by a pending debounced event or because the input is waiting for some\n   * future event.\n   *\n   * If you have an input that uses `ng-model-options` to set up debounced updates or updates that\n   * depend on special events such as `blur`, there can be a period when the `$viewValue` is out of\n   * sync with the ngModel's `$modelValue`.\n   *\n   * In this case, you can use `$rollbackViewValue()` to manually cancel the debounced / future update\n   * and reset the input to the last committed view value.\n   *\n   * It is also possible that you run into difficulties if you try to update the ngModel's `$modelValue`\n   * programmatically before these debounced/future events have resolved/occurred, because AngularJS's\n   * dirty checking mechanism is not able to tell whether the model has actually changed or not.\n   *\n   * The `$rollbackViewValue()` method should be called before programmatically changing the model of an\n   * input which may have such events pending. This is important in order to make sure that the\n   * input field will be updated with the new model value and any pending operations are cancelled.\n   *\n   * @example\n   * <example name=\"ng-model-cancel-update\" module=\"cancel-update-example\">\n   *   <file name=\"app.js\">\n   *     angular.module('cancel-update-example', [])\n   *\n   *     .controller('CancelUpdateController', ['$scope', function($scope) {\n   *       $scope.model = {value1: '', value2: ''};\n   *\n   *       $scope.setEmpty = function(e, value, rollback) {\n   *         if (e.keyCode === 27) {\n   *           e.preventDefault();\n   *           if (rollback) {\n   *             $scope.myForm[value].$rollbackViewValue();\n   *           }\n   *           $scope.model[value] = '';\n   *         }\n   *       };\n   *     }]);\n   *   </file>\n   *   <file name=\"index.html\">\n   *     <div ng-controller=\"CancelUpdateController\">\n   *       <p>Both of these inputs are only updated if they are blurred. Hitting escape should\n   *       empty them. Follow these steps and observe the difference:</p>\n   *       <ol>\n   *         <li>Type something in the input. You will see that the model is not yet updated</li>\n   *         <li>Press the Escape key.\n   *           <ol>\n   *             <li> In the first example, nothing happens, because the model is already '', and no\n   *             update is detected. If you blur the input, the model will be set to the current view.\n   *             </li>\n   *             <li> In the second example, the pending update is cancelled, and the input is set back\n   *             to the last committed view value (''). Blurring the input does nothing.\n   *             </li>\n   *           </ol>\n   *         </li>\n   *       </ol>\n   *\n   *       <form name=\"myForm\" ng-model-options=\"{ updateOn: 'blur' }\">\n   *         <div>\n   *           <p id=\"inputDescription1\">Without $rollbackViewValue():</p>\n   *           <input name=\"value1\" aria-describedby=\"inputDescription1\" ng-model=\"model.value1\"\n   *                  ng-keydown=\"setEmpty($event, 'value1')\">\n   *           value1: \"{{ model.value1 }}\"\n   *         </div>\n   *\n   *         <div>\n   *           <p id=\"inputDescription2\">With $rollbackViewValue():</p>\n   *           <input name=\"value2\" aria-describedby=\"inputDescription2\" ng-model=\"model.value2\"\n   *                  ng-keydown=\"setEmpty($event, 'value2', true)\">\n   *           value2: \"{{ model.value2 }}\"\n   *         </div>\n   *       </form>\n   *     </div>\n   *   </file>\n       <file name=\"style.css\">\n          div {\n            display: table-cell;\n          }\n          div:nth-child(1) {\n            padding-right: 30px;\n          }\n\n        </file>\n   * </example>\n   */\n  $rollbackViewValue: function() {\n    this.$$timeout.cancel(this.$$pendingDebounce);\n    this.$viewValue = this.$$lastCommittedViewValue;\n    this.$render();\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$validate\n   *\n   * @description\n   * Runs each of the registered validators (first synchronous validators and then\n   * asynchronous validators).\n   * If the validity changes to invalid, the model will be set to `undefined`,\n   * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`.\n   * If the validity changes to valid, it will set the model to the last available valid\n   * `$modelValue`, i.e. either the last parsed value or the last value set from the scope.\n   */\n  $validate: function() {\n\n    // ignore $validate before model is initialized\n    if (isNumberNaN(this.$modelValue)) {\n      return;\n    }\n\n    var viewValue = this.$$lastCommittedViewValue;\n    // Note: we use the $$rawModelValue as $modelValue might have been\n    // set to undefined during a view -> model update that found validation\n    // errors. We can't parse the view here, since that could change\n    // the model although neither viewValue nor the model on the scope changed\n    var modelValue = this.$$rawModelValue;\n\n    var prevValid = this.$valid;\n    var prevModelValue = this.$modelValue;\n\n    var allowInvalid = this.$options.getOption('allowInvalid');\n\n    var that = this;\n    this.$$runValidators(modelValue, viewValue, function(allValid) {\n      // If there was no change in validity, don't update the model\n      // This prevents changing an invalid modelValue to undefined\n      if (!allowInvalid && prevValid !== allValid) {\n        // Note: Don't check this.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        that.$modelValue = allValid ? modelValue : undefined;\n\n        if (that.$modelValue !== prevModelValue) {\n          that.$$writeModelToScope();\n        }\n      }\n    });\n  },\n\n  $$runValidators: function(modelValue, viewValue, doneCallback) {\n    this.$$currentValidationRunId++;\n    var localValidationRunId = this.$$currentValidationRunId;\n    var that = this;\n\n    // check parser error\n    if (!processParseErrors()) {\n      validationDone(false);\n      return;\n    }\n    if (!processSyncValidators()) {\n      validationDone(false);\n      return;\n    }\n    processAsyncValidators();\n\n    function processParseErrors() {\n      var errorKey = that.$$parserName;\n\n      if (isUndefined(that.$$parserValid)) {\n        setValidity(errorKey, null);\n      } else {\n        if (!that.$$parserValid) {\n          forEach(that.$validators, function(v, name) {\n            setValidity(name, null);\n          });\n          forEach(that.$asyncValidators, function(v, name) {\n            setValidity(name, null);\n          });\n        }\n\n        // Set the parse error last, to prevent unsetting it, should a $validators key == parserName\n        setValidity(errorKey, that.$$parserValid);\n        return that.$$parserValid;\n      }\n      return true;\n    }\n\n    function processSyncValidators() {\n      var syncValidatorsValid = true;\n      forEach(that.$validators, function(validator, name) {\n        var result = Boolean(validator(modelValue, viewValue));\n        syncValidatorsValid = syncValidatorsValid && result;\n        setValidity(name, result);\n      });\n      if (!syncValidatorsValid) {\n        forEach(that.$asyncValidators, function(v, name) {\n          setValidity(name, null);\n        });\n        return false;\n      }\n      return true;\n    }\n\n    function processAsyncValidators() {\n      var validatorPromises = [];\n      var allValid = true;\n      forEach(that.$asyncValidators, function(validator, name) {\n        var promise = validator(modelValue, viewValue);\n        if (!isPromiseLike(promise)) {\n          throw ngModelMinErr('nopromise',\n            'Expected asynchronous validator to return a promise but got \\'{0}\\' instead.', promise);\n        }\n        setValidity(name, undefined);\n        validatorPromises.push(promise.then(function() {\n          setValidity(name, true);\n        }, function() {\n          allValid = false;\n          setValidity(name, false);\n        }));\n      });\n      if (!validatorPromises.length) {\n        validationDone(true);\n      } else {\n        that.$$q.all(validatorPromises).then(function() {\n          validationDone(allValid);\n        }, noop);\n      }\n    }\n\n    function setValidity(name, isValid) {\n      if (localValidationRunId === that.$$currentValidationRunId) {\n        that.$setValidity(name, isValid);\n      }\n    }\n\n    function validationDone(allValid) {\n      if (localValidationRunId === that.$$currentValidationRunId) {\n\n        doneCallback(allValid);\n      }\n    }\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$commitViewValue\n   *\n   * @description\n   * Commit a pending update to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. this method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  $commitViewValue: function() {\n    var viewValue = this.$viewValue;\n\n    this.$$timeout.cancel(this.$$pendingDebounce);\n\n    // If the view value has not changed then we should just exit, except in the case where there is\n    // a native validator on the element. In this case the validation state may have changed even though\n    // the viewValue has stayed empty.\n    if (this.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !this.$$hasNativeValidators)) {\n      return;\n    }\n    this.$$updateEmptyClasses(viewValue);\n    this.$$lastCommittedViewValue = viewValue;\n\n    // change to dirty\n    if (this.$pristine) {\n      this.$setDirty();\n    }\n    this.$$parseAndValidate();\n  },\n\n  $$parseAndValidate: function() {\n    var viewValue = this.$$lastCommittedViewValue;\n    var modelValue = viewValue;\n    var that = this;\n\n    this.$$parserValid = isUndefined(modelValue) ? undefined : true;\n\n    // Reset any previous parse error\n    this.$setValidity(this.$$parserName, null);\n    this.$$parserName = 'parse';\n\n    if (this.$$parserValid) {\n      for (var i = 0; i < this.$parsers.length; i++) {\n        modelValue = this.$parsers[i](modelValue);\n        if (isUndefined(modelValue)) {\n          this.$$parserValid = false;\n          break;\n        }\n      }\n    }\n    if (isNumberNaN(this.$modelValue)) {\n      // this.$modelValue has not been touched yet...\n      this.$modelValue = this.$$ngModelGet(this.$$scope);\n    }\n    var prevModelValue = this.$modelValue;\n    var allowInvalid = this.$options.getOption('allowInvalid');\n    this.$$rawModelValue = modelValue;\n\n    if (allowInvalid) {\n      this.$modelValue = modelValue;\n      writeToModelIfNeeded();\n    }\n\n    // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date.\n    // This can happen if e.g. $setViewValue is called from inside a parser\n    this.$$runValidators(modelValue, this.$$lastCommittedViewValue, function(allValid) {\n      if (!allowInvalid) {\n        // Note: Don't check this.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        that.$modelValue = allValid ? modelValue : undefined;\n        writeToModelIfNeeded();\n      }\n    });\n\n    function writeToModelIfNeeded() {\n      if (that.$modelValue !== prevModelValue) {\n        that.$$writeModelToScope();\n      }\n    }\n  },\n\n  $$writeModelToScope: function() {\n    this.$$ngModelSet(this.$$scope, this.$modelValue);\n    forEach(this.$viewChangeListeners, function(listener) {\n      try {\n        listener();\n      } catch (e) {\n        // eslint-disable-next-line no-invalid-this\n        this.$$exceptionHandler(e);\n      }\n    }, this);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setViewValue\n   *\n   * @description\n   * Update the view value.\n   *\n   * This method should be called when a control wants to change the view value; typically,\n   * this is done from within a DOM event handler. For example, the {@link ng.directive:input input}\n   * directive calls it when the value of the input changes and {@link ng.directive:select select}\n   * calls it when an option is selected.\n   *\n   * When `$setViewValue` is called, the new `value` will be staged for committing through the `$parsers`\n   * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged\n   * value is sent directly for processing through the `$parsers` pipeline. After this, the `$validators` and\n   * `$asyncValidators` are called and the value is applied to `$modelValue`.\n   * Finally, the value is set to the **expression** specified in the `ng-model` attribute and\n   * all the registered change listeners, in the `$viewChangeListeners` list are called.\n   *\n   * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn`\n   * and the `default` trigger is not listed, all those actions will remain pending until one of the\n   * `updateOn` events is triggered on the DOM element.\n   * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions}\n   * directive is used with a custom debounce for this particular event.\n   * Note that a `$digest` is only triggered once the `updateOn` events are fired, or if `debounce`\n   * is specified, once the timer runs out.\n   *\n   * When used with standard inputs, the view value will always be a string (which is in some cases\n   * parsed into another type, such as a `Date` object for `input[date]`.)\n   * However, custom controls might also pass objects to this method. In this case, we should make\n   * a copy of the object before passing it to `$setViewValue`. This is because `ngModel` does not\n   * perform a deep watch of objects, it only looks for a change of identity. If you only change\n   * the property of the object then ngModel will not realize that the object has changed and\n   * will not invoke the `$parsers` and `$validators` pipelines. For this reason, you should\n   * not change properties of the copy once it has been passed to `$setViewValue`.\n   * Otherwise you may cause the model value on the scope to change incorrectly.\n   *\n   * <div class=\"alert alert-info\">\n   * In any case, the value passed to the method should always reflect the current value\n   * of the control. For example, if you are calling `$setViewValue` for an input element,\n   * you should pass the input DOM value. Otherwise, the control and the scope model become\n   * out of sync. It's also important to note that `$setViewValue` does not call `$render` or change\n   * the control's DOM value in any way. If we want to change the control's DOM value\n   * programmatically, we should update the `ngModel` scope expression. Its new value will be\n   * picked up by the model controller, which will run it through the `$formatters`, `$render` it\n   * to update the DOM, and finally call `$validate` on it.\n   * </div>\n   *\n   * @param {*} value value from the view.\n   * @param {string} trigger Event that triggered the update.\n   */\n  $setViewValue: function(value, trigger) {\n    this.$viewValue = value;\n    if (this.$options.getOption('updateOnDefault')) {\n      this.$$debounceViewValueCommit(trigger);\n    }\n  },\n\n  $$debounceViewValueCommit: function(trigger) {\n    var debounceDelay = this.$options.getOption('debounce');\n\n    if (isNumber(debounceDelay[trigger])) {\n      debounceDelay = debounceDelay[trigger];\n    } else if (isNumber(debounceDelay['default']) &&\n      this.$options.getOption('updateOn').indexOf(trigger) === -1\n    ) {\n      debounceDelay = debounceDelay['default'];\n    } else if (isNumber(debounceDelay['*'])) {\n      debounceDelay = debounceDelay['*'];\n    }\n\n    this.$$timeout.cancel(this.$$pendingDebounce);\n    var that = this;\n    if (debounceDelay > 0) { // this fails if debounceDelay is an object\n      this.$$pendingDebounce = this.$$timeout(function() {\n        that.$commitViewValue();\n      }, debounceDelay);\n    } else if (this.$$rootScope.$$phase) {\n      this.$commitViewValue();\n    } else {\n      this.$$scope.$apply(function() {\n        that.$commitViewValue();\n      });\n    }\n  },\n\n  /**\n   * @ngdoc method\n   *\n   * @name ngModel.NgModelController#$overrideModelOptions\n   *\n   * @description\n   *\n   * Override the current model options settings programmatically.\n   *\n   * The previous `ModelOptions` value will not be modified. Instead, a\n   * new `ModelOptions` object will inherit from the previous one overriding\n   * or inheriting settings that are defined in the given parameter.\n   *\n   * See {@link ngModelOptions} for information about what options can be specified\n   * and how model option inheritance works.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** this function only affects the options set on the `ngModelController`,\n   * and not the options on the {@link ngModelOptions} directive from which they might have been\n   * obtained initially.\n   * </div>\n   *\n   * <div class=\"alert alert-danger\">\n   * **Note:** it is not possible to override the `getterSetter` option.\n   * </div>\n   *\n   * @param {Object} options a hash of settings to override the previous options\n   *\n   */\n  $overrideModelOptions: function(options) {\n    this.$options = this.$options.createChild(options);\n    this.$$setUpdateOnEvents();\n  },\n\n  /**\n   * @ngdoc method\n   *\n   * @name  ngModel.NgModelController#$processModelValue\n\n   * @description\n   *\n   * Runs the model -> view pipeline on the current\n   * {@link ngModel.NgModelController#$modelValue $modelValue}.\n   *\n   * The following actions are performed by this method:\n   *\n   * - the `$modelValue` is run through the {@link ngModel.NgModelController#$formatters $formatters}\n   * and the result is set to the {@link ngModel.NgModelController#$viewValue $viewValue}\n   * - the `ng-empty` or `ng-not-empty` class is set on the element\n   * - if the `$viewValue` has changed:\n   *   - {@link ngModel.NgModelController#$render $render} is called on the control\n   *   - the {@link ngModel.NgModelController#$validators $validators} are run and\n   *   the validation status is set.\n   *\n   * This method is called by ngModel internally when the bound scope value changes.\n   * Application developers usually do not have to call this function themselves.\n   *\n   * This function can be used when the `$viewValue` or the rendered DOM value are not correctly\n   * formatted and the `$modelValue` must be run through the `$formatters` again.\n   *\n   * @example\n   * Consider a text input with an autocomplete list (for fruit), where the items are\n   * objects with a name and an id.\n   * A user enters `ap` and then selects `Apricot` from the list.\n   * Based on this, the autocomplete widget will call `$setViewValue({name: 'Apricot', id: 443})`,\n   * but the rendered value will still be `ap`.\n   * The widget can then call `ctrl.$processModelValue()` to run the model -> view\n   * pipeline again, which formats the object to the string `Apricot`,\n   * then updates the `$viewValue`, and finally renders it in the DOM.\n   *\n   * <example module=\"inputExample\" name=\"ng-model-process\">\n     <file name=\"index.html\">\n      <div ng-controller=\"inputController\" style=\"display: flex;\">\n        <div style=\"margin-right: 30px;\">\n          Search Fruit:\n          <basic-autocomplete items=\"items\" on-select=\"selectedFruit = item\"></basic-autocomplete>\n        </div>\n        <div>\n          Model:<br>\n          <pre>{{selectedFruit | json}}</pre>\n        </div>\n      </div>\n     </file>\n     <file name=\"app.js\">\n      angular.module('inputExample', [])\n        .controller('inputController', function($scope) {\n          $scope.items = [\n            {name: 'Apricot', id: 443},\n            {name: 'Clementine', id: 972},\n            {name: 'Durian', id: 169},\n            {name: 'Jackfruit', id: 982},\n            {name: 'Strawberry', id: 863}\n          ];\n        })\n        .component('basicAutocomplete', {\n          bindings: {\n            items: '<',\n            onSelect: '&'\n          },\n          templateUrl: 'autocomplete.html',\n          controller: function($element, $scope) {\n            var that = this;\n            var ngModel;\n\n            that.$postLink = function() {\n              ngModel = $element.find('input').controller('ngModel');\n\n              ngModel.$formatters.push(function(value) {\n                return (value && value.name) || value;\n              });\n\n              ngModel.$parsers.push(function(value) {\n                var match = value;\n                for (var i = 0; i < that.items.length; i++) {\n                  if (that.items[i].name === value) {\n                    match = that.items[i];\n                    break;\n                  }\n                }\n\n                return match;\n              });\n            };\n\n            that.selectItem = function(item) {\n              ngModel.$setViewValue(item);\n              ngModel.$processModelValue();\n              that.onSelect({item: item});\n            };\n          }\n        });\n     </file>\n     <file name=\"autocomplete.html\">\n       <div>\n         <input type=\"search\" ng-model=\"$ctrl.searchTerm\" />\n         <ul>\n           <li ng-repeat=\"item in $ctrl.items | filter:$ctrl.searchTerm\">\n             <button ng-click=\"$ctrl.selectItem(item)\">{{ item.name }}</button>\n           </li>\n         </ul>\n       </div>\n     </file>\n   * </example>\n   *\n   */\n  $processModelValue: function() {\n    var viewValue = this.$$format();\n\n    if (this.$viewValue !== viewValue) {\n      this.$$updateEmptyClasses(viewValue);\n      this.$viewValue = this.$$lastCommittedViewValue = viewValue;\n      this.$render();\n      // It is possible that model and view value have been updated during render\n      this.$$runValidators(this.$modelValue, this.$viewValue, noop);\n    }\n  },\n\n  /**\n   * This method is called internally to run the $formatters on the $modelValue\n   */\n  $$format: function() {\n    var formatters = this.$formatters,\n        idx = formatters.length;\n\n    var viewValue = this.$modelValue;\n    while (idx--) {\n      viewValue = formatters[idx](viewValue);\n    }\n\n    return viewValue;\n  },\n\n  /**\n   * This method is called internally when the bound scope value changes.\n   */\n  $$setModelValue: function(modelValue) {\n    this.$modelValue = this.$$rawModelValue = modelValue;\n    this.$$parserValid = undefined;\n    this.$processModelValue();\n  },\n\n  $$setUpdateOnEvents: function() {\n    if (this.$$updateEvents) {\n      this.$$element.off(this.$$updateEvents, this.$$updateEventHandler);\n    }\n\n    this.$$updateEvents = this.$options.getOption('updateOn');\n    if (this.$$updateEvents) {\n      this.$$element.on(this.$$updateEvents, this.$$updateEventHandler);\n    }\n  },\n\n  $$updateEventHandler: function(ev) {\n    this.$$debounceViewValueCommit(ev && ev.type);\n  }\n};\n\nfunction setupModelWatcher(ctrl) {\n  // model -> value\n  // Note: we cannot use a normal scope.$watch as we want to detect the following:\n  // 1. scope value is 'a'\n  // 2. user enters 'b'\n  // 3. ng-change kicks in and reverts scope value to 'a'\n  //    -> scope value did not change since the last digest as\n  //       ng-change executes in apply phase\n  // 4. view should be changed back to 'a'\n  ctrl.$$scope.$watch(function ngModelWatch(scope) {\n    var modelValue = ctrl.$$ngModelGet(scope);\n\n    // if scope model value and ngModel value are out of sync\n    // This cannot be moved to the action function, because it would not catch the\n    // case where the model is changed in the ngChange function or the model setter\n    if (modelValue !== ctrl.$modelValue &&\n      // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator\n      // eslint-disable-next-line no-self-compare\n      (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue)\n    ) {\n      ctrl.$$setModelValue(modelValue);\n    }\n\n    return modelValue;\n  });\n}\n\n/**\n * @ngdoc method\n * @name ngModel.NgModelController#$setValidity\n *\n * @description\n * Change the validity state, and notify the form.\n *\n * This method can be called within $parsers/$formatters or a custom validation implementation.\n * However, in most cases it should be sufficient to use the `ngModel.$validators` and\n * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically.\n *\n * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned\n *        to either `$error[validationErrorKey]` or `$pending[validationErrorKey]`\n *        (for unfulfilled `$asyncValidators`), so that it is available for data-binding.\n *        The `validationErrorKey` should be in camelCase and will get converted into dash-case\n *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`\n *        classes and can be bound to as `{{ someForm.someControl.$error.myError }}`.\n * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined),\n *                          or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n *                          Skipped is used by AngularJS when validators do not run because of parse errors and\n *                          when `$asyncValidators` do not run because any of the `$validators` failed.\n */\naddSetValidityMethod({\n  clazz: NgModelController,\n  set: function(object, property) {\n    object[property] = true;\n  },\n  unset: function(object, property) {\n    delete object[property];\n  }\n});\n\n\n/**\n * @ngdoc directive\n * @name ngModel\n * @restrict A\n * @priority 1\n * @param {expression} ngModel assignable {@link guide/expression Expression} to bind to.\n *\n * @description\n * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a\n * property on the scope using {@link ngModel.NgModelController NgModelController},\n * which is created and exposed by this directive.\n *\n * `ngModel` is responsible for:\n *\n * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`\n *   require.\n * - Providing validation behavior (i.e. required, number, email, url).\n * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors).\n * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`,\n *   `ng-untouched`, `ng-empty`, `ng-not-empty`) including animations.\n * - Registering the control with its parent {@link ng.directive:form form}.\n *\n * Note: `ngModel` will try to bind to the property given by evaluating the expression on the\n * current scope. If the property doesn't already exist on this scope, it will be created\n * implicitly and added to the scope.\n *\n * For best practices on using `ngModel`, see:\n *\n *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)\n *\n * For basic examples, how to use `ngModel`, see:\n *\n *  - {@link ng.directive:input input}\n *    - {@link input[text] text}\n *    - {@link input[checkbox] checkbox}\n *    - {@link input[radio] radio}\n *    - {@link input[number] number}\n *    - {@link input[email] email}\n *    - {@link input[url] url}\n *    - {@link input[date] date}\n *    - {@link input[datetime-local] datetime-local}\n *    - {@link input[time] time}\n *    - {@link input[month] month}\n *    - {@link input[week] week}\n *  - {@link ng.directive:select select}\n *  - {@link ng.directive:textarea textarea}\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding inputs to models that are objects (e.g. `Date`) or collections (e.g. arrays). If only properties of the\n * object or collection change, `ngModel` will not be notified and so the input will not be  re-rendered.\n *\n * The model must be assigned an entirely new object or collection before a re-rendering will occur.\n *\n * Some directives have options that will cause them to use a custom `$watchCollection` on the model expression\n * - for example, `ngOptions` will do so when a `track by` clause is included in the comprehension expression or\n * if the select is given the `multiple` attribute.\n *\n * The `$watchCollection()` method only does a shallow comparison, meaning that changing properties deeper than the\n * first level of the object (or only changing the properties of an item in the collection if it's an array) will still\n * not trigger a re-rendering of the model.\n *\n * ## CSS classes\n * The following CSS classes are added and removed on the associated input/select/textarea element\n * depending on the validity of the model.\n *\n *  - `ng-valid`: the model is valid\n *  - `ng-invalid`: the model is invalid\n *  - `ng-valid-[key]`: for each valid key added by `$setValidity`\n *  - `ng-invalid-[key]`: for each invalid key added by `$setValidity`\n *  - `ng-pristine`: the control hasn't been interacted with yet\n *  - `ng-dirty`: the control has been interacted with\n *  - `ng-touched`: the control has been blurred\n *  - `ng-untouched`: the control hasn't been blurred\n *  - `ng-pending`: any `$asyncValidators` are unfulfilled\n *  - `ng-empty`: the view does not contain a value or the value is deemed \"empty\", as defined\n *     by the {@link ngModel.NgModelController#$isEmpty} method\n *  - `ng-not-empty`: the view contains a non-empty value\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n * @animations\n * Animations within models are triggered when any of the associated CSS classes are added and removed\n * on the input element which is attached to the model. These classes include: `.ng-pristine`, `.ng-dirty`,\n * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.\n * The animations that are triggered within ngModel are similar to how they work in ngClass and\n * animations can be hooked into using CSS transitions, keyframes as well as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style an input element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-input {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-input.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n * ### Basic Usage\n * <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"inputExample\" name=\"ng-model\">\n     <file name=\"index.html\">\n       <script>\n        angular.module('inputExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.val = '1';\n          }]);\n       </script>\n       <style>\n         .my-input {\n           transition:all linear 0.5s;\n           background: transparent;\n         }\n         .my-input.ng-invalid {\n           color:white;\n           background: red;\n         }\n       </style>\n       <p id=\"inputDescription\">\n        Update input to see transitions when valid/invalid.\n        Integer is a valid value.\n       </p>\n       <form name=\"testForm\" ng-controller=\"ExampleController\">\n         <input ng-model=\"val\" ng-pattern=\"/^\\d+$/\" name=\"anim\" class=\"my-input\"\n                aria-describedby=\"inputDescription\" />\n       </form>\n     </file>\n * </example>\n *\n * @example\n * ### Binding to a getter/setter\n *\n * Sometimes it's helpful to bind `ngModel` to a getter/setter function.  A getter/setter is a\n * function that returns a representation of the model when called with zero arguments, and sets\n * the internal state of a model when called with an argument. It's sometimes useful to use this\n * for models that have an internal representation that's different from what the model exposes\n * to the view.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's best to keep getters fast because AngularJS is likely to call them more\n * frequently than other parts of your code.\n * </div>\n *\n * You use this behavior by adding `ng-model-options=\"{ getterSetter: true }\"` to an element that\n * has `ng-model` attached to it. You can also add `ng-model-options=\"{ getterSetter: true }\"` to\n * a `<form>`, which will enable this behavior for all `<input>`s within it. See\n * {@link ng.directive:ngModelOptions `ngModelOptions`} for more.\n *\n * The following example shows how to use `ngModel` with a getter/setter:\n *\n * @example\n * <example name=\"ngModel-getter-setter\" module=\"getterSetterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <form name=\"userForm\">\n           <label>Name:\n             <input type=\"text\" name=\"userName\"\n                    ng-model=\"user.name\"\n                    ng-model-options=\"{ getterSetter: true }\" />\n           </label>\n         </form>\n         <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n       </div>\n     </file>\n     <file name=\"app.js\">\n       angular.module('getterSetterExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var _name = 'Brian';\n           $scope.user = {\n             name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n             }\n           };\n         }]);\n     </file>\n * </example>\n */\nvar ngModelDirective = ['$rootScope', function($rootScope) {\n  return {\n    restrict: 'A',\n    require: ['ngModel', '^?form', '^?ngModelOptions'],\n    controller: NgModelController,\n    // Prelink needs to run before any input directive\n    // so that we can set the NgModelOptions in NgModelController\n    // before anyone else uses it.\n    priority: 1,\n    compile: function ngModelCompile(element) {\n      // Setup initial state of the control\n      element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS);\n\n      return {\n        pre: function ngModelPreLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0],\n              formCtrl = ctrls[1] || modelCtrl.$$parentForm,\n              optionsCtrl = ctrls[2];\n\n          if (optionsCtrl) {\n            modelCtrl.$options = optionsCtrl.$options;\n          }\n\n          modelCtrl.$$initGetterSetters();\n\n          // notify others, especially parent forms\n          formCtrl.$addControl(modelCtrl);\n\n          attr.$observe('name', function(newValue) {\n            if (modelCtrl.$name !== newValue) {\n              modelCtrl.$$parentForm.$$renameControl(modelCtrl, newValue);\n            }\n          });\n\n          scope.$on('$destroy', function() {\n            modelCtrl.$$parentForm.$removeControl(modelCtrl);\n          });\n        },\n        post: function ngModelPostLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0];\n          modelCtrl.$$setUpdateOnEvents();\n\n          function setTouched() {\n            modelCtrl.$setTouched();\n          }\n\n          element.on('blur', function() {\n            if (modelCtrl.$touched) return;\n\n            if ($rootScope.$$phase) {\n              scope.$evalAsync(setTouched);\n            } else {\n              scope.$apply(setTouched);\n            }\n          });\n        }\n      };\n    }\n  };\n}];\n\n/* exported defaultModelOptions */\nvar defaultModelOptions;\nvar DEFAULT_REGEXP = /(\\s+|^)default(\\s+|$)/;\n\n/**\n * @ngdoc type\n * @name ModelOptions\n * @description\n * A container for the options set by the {@link ngModelOptions} directive\n */\nfunction ModelOptions(options) {\n  this.$$options = options;\n}\n\nModelOptions.prototype = {\n\n  /**\n   * @ngdoc method\n   * @name ModelOptions#getOption\n   * @param {string} name the name of the option to retrieve\n   * @returns {*} the value of the option\n   * @description\n   * Returns the value of the given option\n   */\n  getOption: function(name) {\n    return this.$$options[name];\n  },\n\n  /**\n   * @ngdoc method\n   * @name ModelOptions#createChild\n   * @param {Object} options a hash of options for the new child that will override the parent's options\n   * @return {ModelOptions} a new `ModelOptions` object initialized with the given options.\n   */\n  createChild: function(options) {\n    var inheritAll = false;\n\n    // make a shallow copy\n    options = extend({}, options);\n\n    // Inherit options from the parent if specified by the value `\"$inherit\"`\n    forEach(options, /** @this */ function(option, key) {\n      if (option === '$inherit') {\n        if (key === '*') {\n          inheritAll = true;\n        } else {\n          options[key] = this.$$options[key];\n          // `updateOn` is special so we must also inherit the `updateOnDefault` option\n          if (key === 'updateOn') {\n            options.updateOnDefault = this.$$options.updateOnDefault;\n          }\n        }\n      } else {\n        if (key === 'updateOn') {\n          // If the `updateOn` property contains the `default` event then we have to remove\n          // it from the event list and set the `updateOnDefault` flag.\n          options.updateOnDefault = false;\n          options[key] = trim(option.replace(DEFAULT_REGEXP, function() {\n            options.updateOnDefault = true;\n            return ' ';\n          }));\n        }\n      }\n    }, this);\n\n    if (inheritAll) {\n      // We have a property of the form: `\"*\": \"$inherit\"`\n      delete options['*'];\n      defaults(options, this.$$options);\n    }\n\n    // Finally add in any missing defaults\n    defaults(options, defaultModelOptions.$$options);\n\n    return new ModelOptions(options);\n  }\n};\n\n\ndefaultModelOptions = new ModelOptions({\n  updateOn: '',\n  updateOnDefault: true,\n  debounce: 0,\n  getterSetter: false,\n  allowInvalid: false,\n  timezone: null\n});\n\n\n/**\n * @ngdoc directive\n * @name ngModelOptions\n * @restrict A\n * @priority 10\n *\n * @description\n * This directive allows you to modify the behaviour of {@link ngModel} directives within your\n * application. You can specify an `ngModelOptions` directive on any element. All {@link ngModel}\n * directives will use the options of their nearest `ngModelOptions` ancestor.\n *\n * The `ngModelOptions` settings are found by evaluating the value of the attribute directive as\n * an AngularJS expression. This expression should evaluate to an object, whose properties contain\n * the settings. For example: `<div ng-model-options=\"{ debounce: 100 }\"`.\n *\n * ## Inheriting Options\n *\n * You can specify that an `ngModelOptions` setting should be inherited from a parent `ngModelOptions`\n * directive by giving it the value of `\"$inherit\"`.\n * Then it will inherit that setting from the first `ngModelOptions` directive found by traversing up the\n * DOM tree. If there is no ancestor element containing an `ngModelOptions` directive then default settings\n * will be used.\n *\n * For example given the following fragment of HTML\n *\n *\n * ```html\n * <div ng-model-options=\"{ allowInvalid: true, debounce: 200 }\">\n *   <form ng-model-options=\"{ updateOn: 'blur', allowInvalid: '$inherit' }\">\n *     <input ng-model-options=\"{ updateOn: 'default', allowInvalid: '$inherit' }\" />\n *   </form>\n * </div>\n * ```\n *\n * the `input` element will have the following settings\n *\n * ```js\n * { allowInvalid: true, updateOn: 'default', debounce: 0 }\n * ```\n *\n * Notice that the `debounce` setting was not inherited and used the default value instead.\n *\n * You can specify that all undefined settings are automatically inherited from an ancestor by\n * including a property with key of `\"*\"` and value of `\"$inherit\"`.\n *\n * For example given the following fragment of HTML\n *\n *\n * ```html\n * <div ng-model-options=\"{ allowInvalid: true, debounce: 200 }\">\n *   <form ng-model-options=\"{ updateOn: 'blur', \"*\": '$inherit' }\">\n *     <input ng-model-options=\"{ updateOn: 'default', \"*\": '$inherit' }\" />\n *   </form>\n * </div>\n * ```\n *\n * the `input` element will have the following settings\n *\n * ```js\n * { allowInvalid: true, updateOn: 'default', debounce: 200 }\n * ```\n *\n * Notice that the `debounce` setting now inherits the value from the outer `<div>` element.\n *\n * If you are creating a reusable component then you should be careful when using `\"*\": \"$inherit\"`\n * since you may inadvertently inherit a setting in the future that changes the behavior of your component.\n *\n *\n * ## Triggering and debouncing model updates\n *\n * The `updateOn` and `debounce` properties allow you to specify a custom list of events that will\n * trigger a model update and/or a debouncing delay so that the actual update only takes place when\n * a timer expires; this timer will be reset after another change takes place.\n *\n * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might\n * be different from the value in the actual model. This means that if you update the model you\n * should also invoke {@link ngModel.NgModelController#$rollbackViewValue} on the relevant input field in\n * order to make sure it is synchronized with the model and that any debounced action is canceled.\n *\n * The easiest way to reference the control's {@link ngModel.NgModelController#$rollbackViewValue}\n * method is by making sure the input is placed inside a form that has a `name` attribute. This is\n * important because `form` controllers are published to the related scope under the name in their\n * `name` attribute.\n *\n * Any pending changes will take place immediately when an enclosing form is submitted via the\n * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * ### Overriding immediate updates\n *\n * The following example shows how to override immediate updates. Changes on the inputs within the\n * form will update the model only when the control loses focus (blur event). If `escape` key is\n * pressed while the input field is focused, the value is reset to the value in the current model.\n *\n * <example name=\"ngModelOptions-directive-blur\" module=\"optionsExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         <label>\n *           Name:\n *           <input type=\"text\" name=\"userName\"\n *                  ng-model=\"user.name\"\n *                  ng-model-options=\"{ updateOn: 'blur' }\"\n *                  ng-keyup=\"cancel($event)\" />\n *         </label><br />\n *         <label>\n *           Other data:\n *           <input type=\"text\" ng-model=\"user.data\" />\n *         </label><br />\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('optionsExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.user = { name: 'say', data: '' };\n *\n *         $scope.cancel = function(e) {\n *           if (e.keyCode === 27) {\n *             $scope.userForm.userName.$rollbackViewValue();\n *           }\n *         };\n *       }]);\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var model = element(by.binding('user.name'));\n *     var input = element(by.model('user.name'));\n *     var other = element(by.model('user.data'));\n *\n *     it('should allow custom events', function() {\n *       input.sendKeys(' hello');\n *       input.click();\n *       expect(model.getText()).toEqual('say');\n *       other.click();\n *       expect(model.getText()).toEqual('say hello');\n *     });\n *\n *     it('should $rollbackViewValue when model changes', function() {\n *       input.sendKeys(' hello');\n *       expect(input.getAttribute('value')).toEqual('say hello');\n *       input.sendKeys(protractor.Key.ESCAPE);\n *       expect(input.getAttribute('value')).toEqual('say');\n *       other.click();\n *       expect(model.getText()).toEqual('say');\n *     });\n *   </file>\n * </example>\n *\n * ### Debouncing updates\n *\n * The next example shows how to debounce model changes. Model will be updated only 1 sec after last change.\n * If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty.\n *\n * <example name=\"ngModelOptions-directive-debounce\" module=\"optionsExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         Name:\n *         <input type=\"text\" name=\"userName\"\n *                ng-model=\"user.name\"\n *                ng-model-options=\"{ debounce: 1000 }\" />\n *         <button ng-click=\"userForm.userName.$rollbackViewValue(); user.name=''\">Clear</button><br />\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('optionsExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.user = { name: 'say' };\n *       }]);\n *   </file>\n * </example>\n *\n * ### Default events, extra triggers, and catch-all debounce values\n *\n * This example shows the relationship between \"default\" update events and\n * additional `updateOn` triggers.\n *\n * `default` events are those that are bound to the control, and when fired, update the `$viewValue`\n * via {@link ngModel.NgModelController#$setViewValue $setViewValue}. Every event that is not listed\n * in `updateOn` is considered a \"default\" event, since different control types have different\n * default events.\n *\n * The control in this example updates by \"default\", \"click\", and \"blur\", with different `debounce`\n * values. You can see that \"click\" doesn't have an individual `debounce` value -\n * therefore it uses the `*` debounce value.\n *\n * There is also a button that calls {@link ngModel.NgModelController#$setViewValue $setViewValue}\n * directly with a \"custom\" event. Since \"custom\" is not defined in the `updateOn` list,\n * it is considered a \"default\" event and will update the\n * control if \"default\" is defined in `updateOn`, and will receive the \"default\" debounce value.\n * Note that this is just to illustrate how custom controls would possibly call `$setViewValue`.\n *\n * You can change the `updateOn` and `debounce` configuration to test different scenarios. This\n * is done with {@link ngModel.NgModelController#$overrideModelOptions $overrideModelOptions}.\n *\n  <example name=\"ngModelOptions-advanced\" module=\"optionsExample\">\n    <file name=\"index.html\">\n       <model-update-demo></model-update-demo>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .component('modelUpdateDemo', {\n          templateUrl: 'template.html',\n          controller: function() {\n            this.name = 'Chinua';\n\n            this.options = {\n              updateOn: 'default blur click',\n              debounce: {\n                default: 2000,\n                blur: 0,\n                '*': 1000\n              }\n            };\n\n            this.updateEvents = function() {\n              var eventList = this.options.updateOn.split(' ');\n              eventList.push('*');\n              var events = {};\n\n              for (var i = 0; i < eventList.length; i++) {\n                events[eventList[i]] = this.options.debounce[eventList[i]];\n              }\n\n              this.events = events;\n            };\n\n            this.updateOptions = function() {\n              var options = angular.extend(this.options, {\n                updateOn: Object.keys(this.events).join(' ').replace('*', ''),\n                debounce: this.events\n              });\n\n              this.form.input.$overrideModelOptions(options);\n            };\n\n            // Initialize the event form\n            this.updateEvents();\n          }\n        });\n    </file>\n    <file name=\"template.html\">\n      <form name=\"$ctrl.form\">\n        Input: <input type=\"text\" name=\"input\" ng-model=\"$ctrl.name\" ng-model-options=\"$ctrl.options\" />\n      </form>\n      Model: <tt>{{$ctrl.name}}</tt>\n      <hr>\n      <button ng-click=\"$ctrl.form.input.$setViewValue('some value', 'custom')\">Trigger setViewValue with 'some value' and 'custom' event</button>\n\n      <hr>\n      <form ng-submit=\"$ctrl.updateOptions()\">\n        <b>updateOn</b><br>\n        <input type=\"text\" ng-model=\"$ctrl.options.updateOn\" ng-change=\"$ctrl.updateEvents()\" ng-model-options=\"{debounce: 500}\">\n\n        <table>\n          <tr>\n            <th>Option</th>\n            <th>Debounce value</th>\n          </tr>\n          <tr ng-repeat=\"(key, value) in $ctrl.events\">\n            <td>{{key}}</td>\n            <td><input type=\"number\" ng-model=\"$ctrl.events[key]\" /></td>\n          </tr>\n        </table>\n\n        <br>\n        <input type=\"submit\" value=\"Update options\">\n      </form>\n    </file>\n  </example>\n *\n *\n * ## Model updates and validation\n *\n * The default behaviour in `ngModel` is that the model value is set to `undefined` when the\n * validation determines that the value is invalid. By setting the `allowInvalid` property to true,\n * the model will still be updated even if the value is invalid.\n *\n *\n * ## Connecting to the scope\n *\n * By setting the `getterSetter` property to true you are telling ngModel that the `ngModel` expression\n * on the scope refers to a \"getter/setter\" function rather than the value itself.\n *\n * The following example shows how to bind to getter/setters:\n *\n * <example name=\"ngModelOptions-directive-getter-setter\" module=\"getterSetterExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         <label>\n *           Name:\n *           <input type=\"text\" name=\"userName\"\n *                  ng-model=\"user.name\"\n *                  ng-model-options=\"{ getterSetter: true }\" />\n *         </label>\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('getterSetterExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         var _name = 'Brian';\n *         $scope.user = {\n *           name: function(newName) {\n *             return angular.isDefined(newName) ? (_name = newName) : _name;\n *           }\n *         };\n *       }]);\n *   </file>\n * </example>\n *\n *\n * ## Programmatically changing options\n *\n * The `ngModelOptions` expression is only evaluated once when the directive is linked; it is not\n * watched for changes. However, it is possible to override the options on a single\n * {@link ngModel.NgModelController} instance with\n * {@link ngModel.NgModelController#$overrideModelOptions `NgModelController#$overrideModelOptions()`}.\n * See also the example for\n * {@link ngModelOptions#default-events-extra-triggers-and-catch-all-debounce-values\n * Default events, extra triggers, and catch-all debounce values}.\n *\n *\n * ## Specifying timezones\n *\n * You can specify the timezone that date/time input directives expect by providing its name in the\n * `timezone` property.\n *\n *\n * ## Formatting the value of `time` and `datetime-local`\n *\n * With the options `timeSecondsFormat` and `timeStripZeroSeconds` it is possible to adjust the value\n * that is displayed in the control. Note that browsers may apply their own formatting\n * in the user interface.\n *\n   <example name=\"ngModelOptions-time-format\" module=\"timeExample\">\n     <file name=\"index.html\">\n       <time-example></time-example>\n     </file>\n     <file name=\"script.js\">\n        angular.module('timeExample', [])\n          .component('timeExample', {\n            templateUrl: 'timeExample.html',\n            controller: function() {\n              this.time = new Date(1970, 0, 1, 14, 57, 0);\n\n              this.options = {\n                timeSecondsFormat: 'ss',\n                timeStripZeroSeconds: true\n              };\n\n              this.optionChange = function() {\n                this.timeForm.timeFormatted.$overrideModelOptions(this.options);\n                this.time = new Date(this.time);\n              };\n            }\n          });\n     </file>\n     <file name=\"timeExample.html\">\n       <form name=\"$ctrl.timeForm\">\n         <strong>Default</strong>:\n         <input type=\"time\" ng-model=\"$ctrl.time\" step=\"any\" /><br>\n         <strong>With options</strong>:\n         <input type=\"time\" name=\"timeFormatted\" ng-model=\"$ctrl.time\" step=\"any\" ng-model-options=\"$ctrl.options\" />\n         <br>\n\n         Options:<br>\n         <code>timeSecondsFormat</code>:\n         <input\n           type=\"text\"\n           ng-model=\"$ctrl.options.timeSecondsFormat\"\n           ng-change=\"$ctrl.optionChange()\">\n         <br>\n         <code>timeStripZeroSeconds</code>:\n         <input\n           type=\"checkbox\"\n           ng-model=\"$ctrl.options.timeStripZeroSeconds\"\n           ng-change=\"$ctrl.optionChange()\">\n        </form>\n      </file>\n *  </example>\n *\n * @param {Object} ngModelOptions options to apply to {@link ngModel} directives on this element and\n *   and its descendents.\n *\n * **General options**:\n *\n *   - `updateOn`: string specifying which event should the input be bound to. You can set several\n *     events using an space delimited list. There is a special event called `default` that\n *     matches the default events belonging to the control. These are the events that are bound to\n *     the control, and when fired, update the `$viewValue` via `$setViewValue`.\n *\n *     `ngModelOptions` considers every event that is not listed in `updateOn` a \"default\" event,\n *     since different control types use different default events.\n *\n *     See also the section {@link ngModelOptions#triggering-and-debouncing-model-updates\n *     Triggering and debouncing model updates}.\n *\n *   - `debounce`: integer value which contains the debounce model update value in milliseconds. A\n *     value of 0 triggers an immediate update. If an object is supplied instead, you can specify a\n *     custom value for each event. For example:\n *     ```\n *     ng-model-options=\"{\n *       updateOn: 'default blur',\n *       debounce: { 'default': 500, 'blur': 0 }\n *     }\"\n *     ```\n *     You can use the `*` key to specify a debounce value that applies to all events that are not\n *     specifically listed. In the following example, `mouseup` would have a debounce delay of 1000:\n *     ```\n *     ng-model-options=\"{\n *       updateOn: 'default blur mouseup',\n *       debounce: { 'default': 500, 'blur': 0, '*': 1000 }\n *     }\"\n *     ```\n *   - `allowInvalid`: boolean value which indicates that the model can be set with values that did\n *     not validate correctly instead of the default behavior of setting the model to undefined.\n *   - `getterSetter`: boolean value which determines whether or not to treat functions bound to\n *     `ngModel` as getters/setters.\n *\n *\n *  **Input-type specific options**:\n *\n *   - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for\n *     `<input type=\"date\" />`, `<input type=\"time\" />`, ... . It understands UTC/GMT and the\n *     continental US time zone abbreviations, but for general use, use a time zone offset, for\n *     example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *     If not specified, the timezone of the browser will be used.\n *     Note that changing the timezone will have no effect on the current date, and is only applied after\n *     the next input / model change.\n *\n *   - `timeSecondsFormat`: Defines if the `time` and `datetime-local` types should show seconds and\n *     milliseconds. The option follows the format string of {@link date date filter}.\n *     By default, the options is `undefined` which is equal to `'ss.sss'` (seconds and milliseconds).\n *     The other options are `'ss'` (strips milliseconds), and `''` (empty string), which strips both\n *     seconds and milliseconds.\n *     Note that browsers that support `time` and `datetime-local` require the hour and minutes\n *     part of the time string, and may show the value differently in the user interface.\n *     {@link ngModelOptions#formatting-the-value-of-time-and-datetime-local- See the example}.\n *\n *   - `timeStripZeroSeconds`: Defines if the `time` and `datetime-local` types should strip the\n *     seconds and milliseconds from the formatted value if they are zero. This option is applied\n *     after `timeSecondsFormat`.\n *     This option can be used to make the formatting consistent over different browsers, as some\n *     browsers with support for `time` will natively hide the milliseconds and\n *     seconds if they are zero, but others won't, and browsers that don't implement these input\n *     types will always show the full string.\n *     {@link ngModelOptions#formatting-the-value-of-time-and-datetime-local- See the example}.\n *\n */\nvar ngModelOptionsDirective = function() {\n  NgModelOptionsController.$inject = ['$attrs', '$scope'];\n  function NgModelOptionsController($attrs, $scope) {\n    this.$$attrs = $attrs;\n    this.$$scope = $scope;\n  }\n  NgModelOptionsController.prototype = {\n    $onInit: function() {\n      var parentOptions = this.parentCtrl ? this.parentCtrl.$options : defaultModelOptions;\n      var modelOptionsDefinition = this.$$scope.$eval(this.$$attrs.ngModelOptions);\n\n      this.$options = parentOptions.createChild(modelOptionsDefinition);\n    }\n  };\n\n  return {\n    restrict: 'A',\n    // ngModelOptions needs to run before ngModel and input directives\n    priority: 10,\n    require: {parentCtrl: '?^^ngModelOptions'},\n    bindToController: true,\n    controller: NgModelOptionsController\n  };\n};\n\n\n// shallow copy over values from `src` that are not already specified on `dst`\nfunction defaults(dst, src) {\n  forEach(src, function(value, key) {\n    if (!isDefined(dst[key])) {\n      dst[key] = value;\n    }\n  });\n}\n\n/**\n * @ngdoc directive\n * @name ngNonBindable\n * @restrict AC\n * @priority 1000\n * @element ANY\n *\n * @description\n * The `ngNonBindable` directive tells AngularJS not to compile or bind the contents of the current\n * DOM element, including directives on the element itself that have a lower priority than\n * `ngNonBindable`. This is useful if the element contains what appears to be AngularJS directives\n * and bindings but which should be ignored by AngularJS. This could be the case if you have a site\n * that displays snippets of code, for instance.\n *\n * @example\n * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,\n * but the one wrapped in `ngNonBindable` is left alone.\n *\n  <example name=\"ng-non-bindable\">\n    <file name=\"index.html\">\n      <div>Normal: {{1 + 2}}</div>\n      <div ng-non-bindable>Ignored: {{1 + 2}}</div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n     it('should check ng-non-bindable', function() {\n       expect(element(by.binding('1 + 2')).getText()).toContain('3');\n       expect(element.all(by.css('div')).last().getText()).toMatch(/1 \\+ 2/);\n     });\n    </file>\n  </example>\n */\nvar ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });\n\n/* exported ngOptionsDirective */\n\n/* global jqLiteRemove */\n\nvar ngOptionsMinErr = minErr('ngOptions');\n\n/**\n * @ngdoc directive\n * @name ngOptions\n * @restrict A\n *\n * @description\n *\n * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`\n * elements for the `<select>` element using the array or object obtained by evaluating the\n * `ngOptions` comprehension expression.\n *\n * In many cases, {@link ng.directive:ngRepeat ngRepeat} can be used on `<option>` elements instead of\n * `ngOptions` to achieve a similar result. However, `ngOptions` provides some benefits:\n * - more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression\n * - reduced memory consumption by not creating a new scope for each repeated instance\n * - increased render speed by creating the options in a documentFragment instead of individually\n *\n * When an item in the `<select>` menu is selected, the array element or object property\n * represented by the selected option will be bound to the model identified by the `ngModel`\n * directive.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding the select to a model that is an object or a collection.\n *\n * One issue occurs if you want to preselect an option. For example, if you set\n * the model to an object that is equal to an object in your collection, `ngOptions` won't be able to set the selection,\n * because the objects are not identical. So by default, you should always reference the item in your collection\n * for preselections, e.g.: `$scope.selected = $scope.collection[3]`.\n *\n * Another solution is to use a `track by` clause, because then `ngOptions` will track the identity\n * of the item not by reference, but by the result of the `track by` expression. For example, if your\n * collection items have an id property, you would `track by item.id`.\n *\n * A different issue with objects or collections is that ngModel won't detect if an object property or\n * a collection item changes. For that reason, `ngOptions` additionally watches the model using\n * `$watchCollection`, when the expression contains a `track by` clause or the the select has the `multiple` attribute.\n * This allows ngOptions to trigger a re-rendering of the options even if the actual object/collection\n * has not changed identity, but only a property on the object or an item in the collection changes.\n *\n * Note that `$watchCollection` does a shallow comparison of the properties of the object (or the items in the collection\n * if the model is an array). This means that changing a property deeper than the first level inside the\n * object/collection will not trigger a re-rendering.\n *\n * ## `select` **`as`**\n *\n * Using `select` **`as`** will bind the result of the `select` expression to the model, but\n * the value of the `<select>` and `<option>` html elements will be either the index (for array data sources)\n * or property name (for object data sources) of the value within the collection. If a **`track by`** expression\n * is used, the result of that expression will be set as the value of the `option` and `select` elements.\n *\n *\n * ### `select` **`as`** and **`track by`**\n *\n * <div class=\"alert alert-warning\">\n * Be careful when using `select` **`as`** and **`track by`** in the same expression.\n * </div>\n *\n * Given this array of items on the $scope:\n *\n * ```js\n * $scope.items = [{\n *   id: 1,\n *   label: 'aLabel',\n *   subItem: { name: 'aSubItem' }\n * }, {\n *   id: 2,\n *   label: 'bLabel',\n *   subItem: { name: 'bSubItem' }\n * }];\n * ```\n *\n * This will work:\n *\n * ```html\n * <select ng-options=\"item as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0];\n * ```\n *\n * but this will not work:\n *\n * ```html\n * <select ng-options=\"item.subItem as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0].subItem;\n * ```\n *\n * In both examples, the **`track by`** expression is applied successfully to each `item` in the\n * `items` array. Because the selected option has been set programmatically in the controller, the\n * **`track by`** expression is also applied to the `ngModel` value. In the first example, the\n * `ngModel` value is `items[0]` and the **`track by`** expression evaluates to `items[0].id` with\n * no issue. In the second example, the `ngModel` value is `items[0].subItem` and the **`track by`**\n * expression evaluates to `items[0].subItem.id` (which is undefined). As a result, the model value\n * is not matched against any `<option>` and the `<select>` appears as having no selected value.\n *\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {comprehension_expression} ngOptions in one of the following forms:\n *\n *   * for array data sources:\n *     * `label` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`for`** `value` **`in`** `array` | orderBy:`orderexpr` **`track by`** `trackexpr`\n *        (for including a filter with `track by`)\n *   * for object data sources:\n *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `label` **`disable when`** `disable` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`group by`** `group`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`disable when`** `disable`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *\n * Where:\n *\n *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.\n *   * `value`: local variable which will refer to each item in the `array` or each property value\n *      of `object` during iteration.\n *   * `key`: local variable which will refer to a property name in `object` during iteration.\n *   * `label`: The result of this expression will be the label for `<option>` element. The\n *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).\n *   * `select`: The result of this expression will be bound to the model of the parent `<select>`\n *      element. If not specified, `select` expression will default to `value`.\n *   * `group`: The result of this expression will be used to group options using the `<optgroup>`\n *      DOM element.\n *   * `disable`: The result of this expression will be used to disable the rendered `<option>`\n *      element. Return `true` to disable.\n *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be\n *      used to identify the objects in the array. The `trackexpr` will most likely refer to the\n *     `value` variable (e.g. `value.propertyName`). With this the selection is preserved\n *      even when the options are recreated (e.g. reloaded from the server).\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required The control is considered valid only if value is entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {string=} ngAttrSize sets the size of the select element dynamically. Uses the\n * {@link guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes ngAttr} directive.\n *\n * @example\n    <example module=\"selectExample\" name=\"select\">\n      <file name=\"index.html\">\n        <script>\n        angular.module('selectExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.colors = [\n              {name:'black', shade:'dark'},\n              {name:'white', shade:'light', notAnOption: true},\n              {name:'red', shade:'dark'},\n              {name:'blue', shade:'dark', notAnOption: true},\n              {name:'yellow', shade:'light', notAnOption: false}\n            ];\n            $scope.myColor = $scope.colors[2]; // red\n          }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <ul>\n            <li ng-repeat=\"color in colors\">\n              <label>Name: <input ng-model=\"color.name\"></label>\n              <label><input type=\"checkbox\" ng-model=\"color.notAnOption\"> Disabled?</label>\n              <button ng-click=\"colors.splice($index, 1)\" aria-label=\"Remove\">X</button>\n            </li>\n            <li>\n              <button ng-click=\"colors.push({})\">add</button>\n            </li>\n          </ul>\n          <hr/>\n          <label>Color (null not allowed):\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\"></select>\n          </label><br/>\n          <label>Color (null allowed):\n          <span  class=\"nullable\">\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\">\n              <option value=\"\">-- choose color --</option>\n            </select>\n          </span></label><br/>\n\n          <label>Color grouped by shade:\n            <select ng-model=\"myColor\" ng-options=\"color.name group by color.shade for color in colors\">\n            </select>\n          </label><br/>\n\n          <label>Color grouped by shade, with some disabled:\n            <select ng-model=\"myColor\"\n                  ng-options=\"color.name group by color.shade disable when color.notAnOption for color in colors\">\n            </select>\n          </label><br/>\n\n\n\n          Select <button ng-click=\"myColor = { name:'not in list', shade: 'other' }\">bogus</button>.\n          <br/>\n          <hr/>\n          Currently selected: {{ {selected_color:myColor} }}\n          <div style=\"border:solid 1px black; height:20px\"\n               ng-style=\"{'background-color':myColor.name}\">\n          </div>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n         it('should check ng-options', function() {\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');\n           element.all(by.model('myColor')).first().click();\n           element.all(by.css('select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');\n           element(by.css('.nullable select[ng-model=\"myColor\"]')).click();\n           element.all(by.css('.nullable select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');\n         });\n      </file>\n    </example>\n */\n\n/* eslint-disable max-len */\n//                     //00001111111111000000000002222222222000000000000000000000333333333300000000000000000000000004444444444400000000000005555555555555000000000666666666666600000007777777777777000000000000000888888888800000000000000000009999999999\nvar NG_OPTIONS_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+group\\s+by\\s+([\\s\\S]+?))?(?:\\s+disable\\s+when\\s+([\\s\\S]+?))?\\s+for\\s+(?:([$\\w][$\\w]*)|(?:\\(\\s*([$\\w][$\\w]*)\\s*,\\s*([$\\w][$\\w]*)\\s*\\)))\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?$/;\n                        // 1: value expression (valueFn)\n                        // 2: label expression (displayFn)\n                        // 3: group by expression (groupByFn)\n                        // 4: disable when expression (disableWhenFn)\n                        // 5: array item variable name\n                        // 6: object item key variable name\n                        // 7: object item value variable name\n                        // 8: collection expression\n                        // 9: track by expression\n/* eslint-enable */\n\n\nvar ngOptionsDirective = ['$compile', '$document', '$parse', function($compile, $document, $parse) {\n\n  function parseOptionsExpression(optionsExp, selectElement, scope) {\n\n    var match = optionsExp.match(NG_OPTIONS_REGEXP);\n    if (!(match)) {\n      throw ngOptionsMinErr('iexp',\n        'Expected expression in form of ' +\n        '\\'_select_ (as _label_)? for (_key_,)?_value_ in _collection_\\'' +\n        ' but got \\'{0}\\'. Element: {1}',\n        optionsExp, startingTag(selectElement));\n    }\n\n    // Extract the parts from the ngOptions expression\n\n    // The variable name for the value of the item in the collection\n    var valueName = match[5] || match[7];\n    // The variable name for the key of the item in the collection\n    var keyName = match[6];\n\n    // An expression that generates the viewValue for an option if there is a label expression\n    var selectAs = / as /.test(match[0]) && match[1];\n    // An expression that is used to track the id of each object in the options collection\n    var trackBy = match[9];\n    // An expression that generates the viewValue for an option if there is no label expression\n    var valueFn = $parse(match[2] ? match[1] : valueName);\n    var selectAsFn = selectAs && $parse(selectAs);\n    var viewValueFn = selectAsFn || valueFn;\n    var trackByFn = trackBy && $parse(trackBy);\n\n    // Get the value by which we are going to track the option\n    // if we have a trackFn then use that (passing scope and locals)\n    // otherwise just hash the given viewValue\n    var getTrackByValueFn = trackBy ?\n                              function(value, locals) { return trackByFn(scope, locals); } :\n                              function getHashOfValue(value) { return hashKey(value); };\n    var getTrackByValue = function(value, key) {\n      return getTrackByValueFn(value, getLocals(value, key));\n    };\n\n    var displayFn = $parse(match[2] || match[1]);\n    var groupByFn = $parse(match[3] || '');\n    var disableWhenFn = $parse(match[4] || '');\n    var valuesFn = $parse(match[8]);\n\n    var locals = {};\n    var getLocals = keyName ? function(value, key) {\n      locals[keyName] = key;\n      locals[valueName] = value;\n      return locals;\n    } : function(value) {\n      locals[valueName] = value;\n      return locals;\n    };\n\n\n    function Option(selectValue, viewValue, label, group, disabled) {\n      this.selectValue = selectValue;\n      this.viewValue = viewValue;\n      this.label = label;\n      this.group = group;\n      this.disabled = disabled;\n    }\n\n    function getOptionValuesKeys(optionValues) {\n      var optionValuesKeys;\n\n      if (!keyName && isArrayLike(optionValues)) {\n        optionValuesKeys = optionValues;\n      } else {\n        // if object, extract keys, in enumeration order, unsorted\n        optionValuesKeys = [];\n        for (var itemKey in optionValues) {\n          if (optionValues.hasOwnProperty(itemKey) && itemKey.charAt(0) !== '$') {\n            optionValuesKeys.push(itemKey);\n          }\n        }\n      }\n      return optionValuesKeys;\n    }\n\n    return {\n      trackBy: trackBy,\n      getTrackByValue: getTrackByValue,\n      getWatchables: $parse(valuesFn, function(optionValues) {\n        // Create a collection of things that we would like to watch (watchedArray)\n        // so that they can all be watched using a single $watchCollection\n        // that only runs the handler once if anything changes\n        var watchedArray = [];\n        optionValues = optionValues || [];\n\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n\n          var locals = getLocals(value, key);\n          var selectValue = getTrackByValueFn(value, locals);\n          watchedArray.push(selectValue);\n\n          // Only need to watch the displayFn if there is a specific label expression\n          if (match[2] || match[1]) {\n            var label = displayFn(scope, locals);\n            watchedArray.push(label);\n          }\n\n          // Only need to watch the disableWhenFn if there is a specific disable expression\n          if (match[4]) {\n            var disableWhen = disableWhenFn(scope, locals);\n            watchedArray.push(disableWhen);\n          }\n        }\n        return watchedArray;\n      }),\n\n      getOptions: function() {\n\n        var optionItems = [];\n        var selectValueMap = {};\n\n        // The option values were already computed in the `getWatchables` fn,\n        // which must have been called to trigger `getOptions`\n        var optionValues = valuesFn(scope) || [];\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n          var locals = getLocals(value, key);\n          var viewValue = viewValueFn(scope, locals);\n          var selectValue = getTrackByValueFn(viewValue, locals);\n          var label = displayFn(scope, locals);\n          var group = groupByFn(scope, locals);\n          var disabled = disableWhenFn(scope, locals);\n          var optionItem = new Option(selectValue, viewValue, label, group, disabled);\n\n          optionItems.push(optionItem);\n          selectValueMap[selectValue] = optionItem;\n        }\n\n        return {\n          items: optionItems,\n          selectValueMap: selectValueMap,\n          getOptionFromViewValue: function(value) {\n            return selectValueMap[getTrackByValue(value)];\n          },\n          getViewValueFromOption: function(option) {\n            // If the viewValue could be an object that may be mutated by the application,\n            // we need to make a copy and not return the reference to the value on the option.\n            return trackBy ? copy(option.viewValue) : option.viewValue;\n          }\n        };\n      }\n    };\n  }\n\n\n  // Support: IE 9 only\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  var optionTemplate = window.document.createElement('option'),\n      optGroupTemplate = window.document.createElement('optgroup');\n\n    function ngOptionsPostLink(scope, selectElement, attr, ctrls) {\n\n      var selectCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1];\n      var multiple = attr.multiple;\n\n      // The emptyOption allows the application developer to provide their own custom \"empty\"\n      // option when the viewValue does not match any of the option values.\n      for (var i = 0, children = selectElement.children(), ii = children.length; i < ii; i++) {\n        if (children[i].value === '') {\n          selectCtrl.hasEmptyOption = true;\n          selectCtrl.emptyOption = children.eq(i);\n          break;\n        }\n      }\n\n      // The empty option will be compiled and rendered before we first generate the options\n      selectElement.empty();\n\n      var providedEmptyOption = !!selectCtrl.emptyOption;\n\n      var unknownOption = jqLite(optionTemplate.cloneNode(false));\n      unknownOption.val('?');\n\n      var options;\n      var ngOptions = parseOptionsExpression(attr.ngOptions, selectElement, scope);\n      // This stores the newly created options before they are appended to the select.\n      // Since the contents are removed from the fragment when it is appended,\n      // we only need to create it once.\n      var listFragment = $document[0].createDocumentFragment();\n\n      // Overwrite the implementation. ngOptions doesn't use hashes\n      selectCtrl.generateUnknownOptionValue = function(val) {\n        return '?';\n      };\n\n      // Update the controller methods for multiple selectable options\n      if (!multiple) {\n\n        selectCtrl.writeValue = function writeNgOptionsValue(value) {\n          // The options might not be defined yet when ngModel tries to render\n          if (!options) return;\n\n          var selectedOption = selectElement[0].options[selectElement[0].selectedIndex];\n          var option = options.getOptionFromViewValue(value);\n\n          // Make sure to remove the selected attribute from the previously selected option\n          // Otherwise, screen readers might get confused\n          if (selectedOption) selectedOption.removeAttribute('selected');\n\n          if (option) {\n            // Don't update the option when it is already selected.\n            // For example, the browser will select the first option by default. In that case,\n            // most properties are set automatically - except the `selected` attribute, which we\n            // set always\n\n            if (selectElement[0].value !== option.selectValue) {\n              selectCtrl.removeUnknownOption();\n\n              selectElement[0].value = option.selectValue;\n              option.element.selected = true;\n            }\n\n            option.element.setAttribute('selected', 'selected');\n          } else {\n            selectCtrl.selectUnknownOrEmptyOption(value);\n          }\n        };\n\n        selectCtrl.readValue = function readNgOptionsValue() {\n\n          var selectedOption = options.selectValueMap[selectElement.val()];\n\n          if (selectedOption && !selectedOption.disabled) {\n            selectCtrl.unselectEmptyOption();\n            selectCtrl.removeUnknownOption();\n            return options.getViewValueFromOption(selectedOption);\n          }\n          return null;\n        };\n\n        // If we are using `track by` then we must watch the tracked value on the model\n        // since ngModel only watches for object identity change\n        // FIXME: When a user selects an option, this watch will fire needlessly\n        if (ngOptions.trackBy) {\n          scope.$watch(\n            function() { return ngOptions.getTrackByValue(ngModelCtrl.$viewValue); },\n            function() { ngModelCtrl.$render(); }\n          );\n        }\n\n      } else {\n\n        selectCtrl.writeValue = function writeNgOptionsMultiple(values) {\n          // The options might not be defined yet when ngModel tries to render\n          if (!options) return;\n\n          // Only set `<option>.selected` if necessary, in order to prevent some browsers from\n          // scrolling to `<option>` elements that are outside the `<select>` element's viewport.\n          var selectedOptions = values && values.map(getAndUpdateSelectedOption) || [];\n\n          options.items.forEach(function(option) {\n            if (option.element.selected && !includes(selectedOptions, option)) {\n              option.element.selected = false;\n            }\n          });\n        };\n\n\n        selectCtrl.readValue = function readNgOptionsMultiple() {\n          var selectedValues = selectElement.val() || [],\n              selections = [];\n\n          forEach(selectedValues, function(value) {\n            var option = options.selectValueMap[value];\n            if (option && !option.disabled) selections.push(options.getViewValueFromOption(option));\n          });\n\n          return selections;\n        };\n\n        // If we are using `track by` then we must watch these tracked values on the model\n        // since ngModel only watches for object identity change\n        if (ngOptions.trackBy) {\n\n          scope.$watchCollection(function() {\n            if (isArray(ngModelCtrl.$viewValue)) {\n              return ngModelCtrl.$viewValue.map(function(value) {\n                return ngOptions.getTrackByValue(value);\n              });\n            }\n          }, function() {\n            ngModelCtrl.$render();\n          });\n\n        }\n      }\n\n      if (providedEmptyOption) {\n\n        // compile the element since there might be bindings in it\n        $compile(selectCtrl.emptyOption)(scope);\n\n        selectElement.prepend(selectCtrl.emptyOption);\n\n        if (selectCtrl.emptyOption[0].nodeType === NODE_TYPE_COMMENT) {\n          // This means the empty option has currently no actual DOM node, probably because\n          // it has been modified by a transclusion directive.\n          selectCtrl.hasEmptyOption = false;\n\n          // Redefine the registerOption function, which will catch\n          // options that are added by ngIf etc. (rendering of the node is async because of\n          // lazy transclusion)\n          selectCtrl.registerOption = function(optionScope, optionEl) {\n            if (optionEl.val() === '') {\n              selectCtrl.hasEmptyOption = true;\n              selectCtrl.emptyOption = optionEl;\n              selectCtrl.emptyOption.removeClass('ng-scope');\n              // This ensures the new empty option is selected if previously no option was selected\n              ngModelCtrl.$render();\n\n              optionEl.on('$destroy', function() {\n                var needsRerender = selectCtrl.$isEmptyOptionSelected();\n\n                selectCtrl.hasEmptyOption = false;\n                selectCtrl.emptyOption = undefined;\n\n                if (needsRerender) ngModelCtrl.$render();\n              });\n            }\n          };\n\n        } else {\n          // remove the class, which is added automatically because we recompile the element and it\n          // becomes the compilation root\n          selectCtrl.emptyOption.removeClass('ng-scope');\n        }\n\n      }\n\n      // We will re-render the option elements if the option values or labels change\n      scope.$watchCollection(ngOptions.getWatchables, updateOptions);\n\n      // ------------------------------------------------------------------ //\n\n      function addOptionElement(option, parent) {\n        var optionElement = optionTemplate.cloneNode(false);\n        parent.appendChild(optionElement);\n        updateOptionElement(option, optionElement);\n      }\n\n      function getAndUpdateSelectedOption(viewValue) {\n        var option = options.getOptionFromViewValue(viewValue);\n        var element = option && option.element;\n\n        if (element && !element.selected) element.selected = true;\n\n        return option;\n      }\n\n      function updateOptionElement(option, element) {\n        option.element = element;\n        element.disabled = option.disabled;\n        // Support: IE 11 only, Edge 12-13 only\n        // NOTE: The label must be set before the value, otherwise IE 11 & Edge create unresponsive\n        // selects in certain circumstances when multiple selects are next to each other and display\n        // the option list in listbox style, i.e. the select is [multiple], or specifies a [size].\n        // See https://github.com/angular/angular.js/issues/11314 for more info.\n        // This is unfortunately untestable with unit / e2e tests\n        if (option.label !== element.label) {\n          element.label = option.label;\n          element.textContent = option.label;\n        }\n        element.value = option.selectValue;\n      }\n\n      function updateOptions() {\n        var previousValue = options && selectCtrl.readValue();\n\n        // We must remove all current options, but cannot simply set innerHTML = null\n        // since the providedEmptyOption might have an ngIf on it that inserts comments which we\n        // must preserve.\n        // Instead, iterate over the current option elements and remove them or their optgroup\n        // parents\n        if (options) {\n\n          for (var i = options.items.length - 1; i >= 0; i--) {\n            var option = options.items[i];\n            if (isDefined(option.group)) {\n              jqLiteRemove(option.element.parentNode);\n            } else {\n              jqLiteRemove(option.element);\n            }\n          }\n        }\n\n        options = ngOptions.getOptions();\n\n        var groupElementMap = {};\n\n        options.items.forEach(function addOption(option) {\n          var groupElement;\n\n          if (isDefined(option.group)) {\n\n            // This option is to live in a group\n            // See if we have already created this group\n            groupElement = groupElementMap[option.group];\n\n            if (!groupElement) {\n\n              groupElement = optGroupTemplate.cloneNode(false);\n              listFragment.appendChild(groupElement);\n\n              // Update the label on the group element\n              // \"null\" is special cased because of Safari\n              groupElement.label = option.group === null ? 'null' : option.group;\n\n              // Store it for use later\n              groupElementMap[option.group] = groupElement;\n            }\n\n            addOptionElement(option, groupElement);\n\n          } else {\n\n            // This option is not in a group\n            addOptionElement(option, listFragment);\n          }\n        });\n\n        selectElement[0].appendChild(listFragment);\n\n        ngModelCtrl.$render();\n\n        // Check to see if the value has changed due to the update to the options\n        if (!ngModelCtrl.$isEmpty(previousValue)) {\n          var nextValue = selectCtrl.readValue();\n          var isNotPrimitive = ngOptions.trackBy || multiple;\n          if (isNotPrimitive ? !equals(previousValue, nextValue) : previousValue !== nextValue) {\n            ngModelCtrl.$setViewValue(nextValue);\n            ngModelCtrl.$render();\n          }\n        }\n      }\n  }\n\n  return {\n    restrict: 'A',\n    terminal: true,\n    require: ['select', 'ngModel'],\n    link: {\n      pre: function ngOptionsPreLink(scope, selectElement, attr, ctrls) {\n        // Deactivate the SelectController.register method to prevent\n        // option directives from accidentally registering themselves\n        // (and unwanted $destroy handlers etc.)\n        ctrls[0].registerOption = noop;\n      },\n      post: ngOptionsPostLink\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngPluralize\n * @restrict EA\n *\n * @description\n * `ngPluralize` is a directive that displays messages according to en-US localization rules.\n * These rules are bundled with angular.js, but can be overridden\n * (see {@link guide/i18n AngularJS i18n} dev guide). You configure ngPluralize directive\n * by specifying the mappings between\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * and the strings to be displayed.\n *\n * ## Plural categories and explicit number rules\n * There are two\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * in AngularJS's default en-US locale: \"one\" and \"other\".\n *\n * While a plural category may match many numbers (for example, in en-US locale, \"other\" can match\n * any number that is not 1), an explicit number rule can only match one number. For example, the\n * explicit number rule for \"3\" matches the number 3. There are examples of plural categories\n * and explicit number rules throughout the rest of this documentation.\n *\n * ## Configuring ngPluralize\n * You configure ngPluralize by providing 2 attributes: `count` and `when`.\n * You can also provide an optional attribute, `offset`.\n *\n * The value of the `count` attribute can be either a string or an {@link guide/expression\n * AngularJS expression}; these are evaluated on the current scope for its bound value.\n *\n * The `when` attribute specifies the mappings between plural categories and the actual\n * string to be displayed. The value of the attribute should be a JSON object.\n *\n * The following example shows how to configure ngPluralize:\n *\n * ```html\n * <ng-pluralize count=\"personCount\"\n                 when=\"{'0': 'Nobody is viewing.',\n *                      'one': '1 person is viewing.',\n *                      'other': '{} people are viewing.'}\">\n * </ng-pluralize>\n *```\n *\n * In the example, `\"0: Nobody is viewing.\"` is an explicit number rule. If you did not\n * specify this rule, 0 would be matched to the \"other\" category and \"0 people are viewing\"\n * would be shown instead of \"Nobody is viewing\". You can specify an explicit number rule for\n * other numbers, for example 12, so that instead of showing \"12 people are viewing\", you can\n * show \"a dozen people are viewing\".\n *\n * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted\n * into pluralized strings. In the previous example, AngularJS will replace `{}` with\n * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder\n * for <span ng-non-bindable>{{numberExpression}}</span>.\n *\n * If no rule is defined for a category, then an empty string is displayed and a warning is generated.\n * Note that some locales define more categories than `one` and `other`. For example, fr-fr defines `few` and `many`.\n *\n * ## Configuring ngPluralize with offset\n * The `offset` attribute allows further customization of pluralized text, which can result in\n * a better user experience. For example, instead of the message \"4 people are viewing this document\",\n * you might display \"John, Kate and 2 others are viewing this document\".\n * The offset attribute allows you to offset a number by any desired value.\n * Let's take a look at an example:\n *\n * ```html\n * <ng-pluralize count=\"personCount\" offset=2\n *               when=\"{'0': 'Nobody is viewing.',\n *                      '1': '{{person1}} is viewing.',\n *                      '2': '{{person1}} and {{person2}} are viewing.',\n *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',\n *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n * </ng-pluralize>\n * ```\n *\n * Notice that we are still using two plural categories(one, other), but we added\n * three explicit number rules 0, 1 and 2.\n * When one person, perhaps John, views the document, \"John is viewing\" will be shown.\n * When three people view the document, no explicit number rule is found, so\n * an offset of 2 is taken off 3, and AngularJS uses 1 to decide the plural category.\n * In this case, plural category 'one' is matched and \"John, Mary and one other person are viewing\"\n * is shown.\n *\n * Note that when you specify offsets, you must provide explicit number rules for\n * numbers from 0 up to and including the offset. If you use an offset of 3, for example,\n * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for\n * plural categories \"one\" and \"other\".\n *\n * @param {string|expression} count The variable to be bound to.\n * @param {string} when The mapping between plural category to its corresponding strings.\n * @param {number=} offset Offset to deduct from the total number.\n *\n * @example\n    <example module=\"pluralizeExample\" name=\"ng-pluralize\">\n      <file name=\"index.html\">\n        <script>\n          angular.module('pluralizeExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.person1 = 'Igor';\n              $scope.person2 = 'Misko';\n              $scope.personCount = 1;\n            }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <label>Person 1:<input type=\"text\" ng-model=\"person1\" value=\"Igor\" /></label><br/>\n          <label>Person 2:<input type=\"text\" ng-model=\"person2\" value=\"Misko\" /></label><br/>\n          <label>Number of People:<input type=\"text\" ng-model=\"personCount\" value=\"1\" /></label><br/>\n\n          <!--- Example with simple pluralization rules for en locale --->\n          Without Offset:\n          <ng-pluralize count=\"personCount\"\n                        when=\"{'0': 'Nobody is viewing.',\n                               'one': '1 person is viewing.',\n                               'other': '{} people are viewing.'}\">\n          </ng-pluralize><br>\n\n          <!--- Example with offset --->\n          With Offset(2):\n          <ng-pluralize count=\"personCount\" offset=2\n                        when=\"{'0': 'Nobody is viewing.',\n                               '1': '{{person1}} is viewing.',\n                               '2': '{{person1}} and {{person2}} are viewing.',\n                               'one': '{{person1}}, {{person2}} and one other person are viewing.',\n                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n          </ng-pluralize>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should show correct pluralized string', function() {\n          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var countInput = element(by.model('personCount'));\n\n          expect(withoutOffset.getText()).toEqual('1 person is viewing.');\n          expect(withOffset.getText()).toEqual('Igor is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('0');\n\n          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');\n          expect(withOffset.getText()).toEqual('Nobody is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('2');\n\n          expect(withoutOffset.getText()).toEqual('2 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('3');\n\n          expect(withoutOffset.getText()).toEqual('3 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('4');\n\n          expect(withoutOffset.getText()).toEqual('4 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');\n        });\n        it('should show data-bound names', function() {\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var personCount = element(by.model('personCount'));\n          var person1 = element(by.model('person1'));\n          var person2 = element(by.model('person2'));\n          personCount.clear();\n          personCount.sendKeys('4');\n          person1.clear();\n          person1.sendKeys('Di');\n          person2.clear();\n          person2.sendKeys('Vojta');\n          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');\n        });\n      </file>\n    </example>\n */\nvar ngPluralizeDirective = ['$locale', '$interpolate', '$log', function($locale, $interpolate, $log) {\n  var BRACE = /{}/g,\n      IS_WHEN = /^when(Minus)?(.+)$/;\n\n  return {\n    link: function(scope, element, attr) {\n      var numberExp = attr.count,\n          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs\n          offset = attr.offset || 0,\n          whens = scope.$eval(whenExp) || {},\n          whensExpFns = {},\n          startSymbol = $interpolate.startSymbol(),\n          endSymbol = $interpolate.endSymbol(),\n          braceReplacement = startSymbol + numberExp + '-' + offset + endSymbol,\n          watchRemover = angular.noop,\n          lastCount;\n\n      forEach(attr, function(expression, attributeName) {\n        var tmpMatch = IS_WHEN.exec(attributeName);\n        if (tmpMatch) {\n          var whenKey = (tmpMatch[1] ? '-' : '') + lowercase(tmpMatch[2]);\n          whens[whenKey] = element.attr(attr.$attr[attributeName]);\n        }\n      });\n      forEach(whens, function(expression, key) {\n        whensExpFns[key] = $interpolate(expression.replace(BRACE, braceReplacement));\n\n      });\n\n      scope.$watch(numberExp, function ngPluralizeWatchAction(newVal) {\n        var count = parseFloat(newVal);\n        var countIsNaN = isNumberNaN(count);\n\n        if (!countIsNaN && !(count in whens)) {\n          // If an explicit number rule such as 1, 2, 3... is defined, just use it.\n          // Otherwise, check it against pluralization rules in $locale service.\n          count = $locale.pluralCat(count - offset);\n        }\n\n        // If both `count` and `lastCount` are NaN, we don't need to re-register a watch.\n        // In JS `NaN !== NaN`, so we have to explicitly check.\n        if ((count !== lastCount) && !(countIsNaN && isNumberNaN(lastCount))) {\n          watchRemover();\n          var whenExpFn = whensExpFns[count];\n          if (isUndefined(whenExpFn)) {\n            if (newVal != null) {\n              $log.debug('ngPluralize: no rule defined for \\'' + count + '\\' in ' + whenExp);\n            }\n            watchRemover = noop;\n            updateElementText();\n          } else {\n            watchRemover = scope.$watch(whenExpFn, updateElementText);\n          }\n          lastCount = count;\n        }\n      });\n\n      function updateElementText(newText) {\n        element.text(newText || '');\n      }\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRef\n * @restrict A\n *\n * @description\n * The `ngRef` attribute tells AngularJS to assign the controller of a component (or a directive)\n * to the given property in the current scope. It is also possible to add the jqlite-wrapped DOM\n * element to the scope.\n *\n * If the element with `ngRef` is destroyed `null` is assigned to the property.\n *\n * Note that if you want to assign from a child into the parent scope, you must initialize the\n * target property on the parent scope, otherwise `ngRef` will assign on the child scope.\n * This commonly happens when assigning elements or components wrapped in {@link ngIf} or\n * {@link ngRepeat}. See the second example below.\n *\n *\n * @element ANY\n * @param {string} ngRef property name - A valid AngularJS expression identifier to which the\n *                       controller or jqlite-wrapped DOM element will be bound.\n * @param {string=} ngRefRead read value - The name of a directive (or component) on this element,\n *                            or the special string `$element`. If a name is provided, `ngRef` will\n *                            assign the matching controller. If `$element` is provided, the element\n *                            itself is assigned (even if a controller is available).\n *\n *\n * @example\n * ### Simple toggle\n * This example shows how the controller of the component toggle\n * is reused in the template through the scope to use its logic.\n * <example name=\"ng-ref-component\" module=\"myApp\">\n *   <file name=\"index.html\">\n *     <my-toggle ng-ref=\"myToggle\"></my-toggle>\n *     <button ng-click=\"myToggle.toggle()\">Toggle</button>\n *     <div ng-show=\"myToggle.isOpen()\">\n *       You are using a component in the same template to show it.\n *     </div>\n *   </file>\n *   <file name=\"index.js\">\n *     angular.module('myApp', [])\n *     .component('myToggle', {\n *       controller: function ToggleController() {\n *         var opened = false;\n *         this.isOpen = function() { return opened; };\n *         this.toggle = function() { opened = !opened; };\n *       }\n *     });\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should publish the toggle into the scope', function() {\n *        var toggle = element(by.buttonText('Toggle'));\n *        expect(toggle.evaluate('myToggle.isOpen()')).toEqual(false);\n *        toggle.click();\n *        expect(toggle.evaluate('myToggle.isOpen()')).toEqual(true);\n *      });\n *   </file>\n * </example>\n *\n * @example\n * ### ngRef inside scopes\n * This example shows how `ngRef` works with child scopes. The `ngRepeat`-ed `myWrapper` components\n * are assigned to the scope of `myRoot`, because the `toggles` property has been initialized.\n * The repeated `myToggle` components are published to the child scopes created by `ngRepeat`.\n * `ngIf` behaves similarly - the assignment of `myToggle` happens in the `ngIf` child scope,\n * because the target property has not been initialized on the `myRoot` component controller.\n *\n * <example name=\"ng-ref-scopes\" module=\"myApp\">\n *   <file name=\"index.html\">\n *     <my-root></my-root>\n *   </file>\n *   <file name=\"index.js\">\n *     angular.module('myApp', [])\n *     .component('myRoot', {\n *       templateUrl: 'root.html',\n *       controller: function() {\n *         this.wrappers = []; // initialize the array so that the wrappers are assigned into the parent scope\n *       }\n *     })\n *     .component('myToggle', {\n *       template: '<strong>myToggle</strong><button ng-click=\"$ctrl.toggle()\" ng-transclude></button>',\n *       transclude: true,\n *       controller: function ToggleController() {\n *         var opened = false;\n *         this.isOpen = function() { return opened; };\n *         this.toggle = function() { opened = !opened; };\n *       }\n *     })\n *     .component('myWrapper', {\n *       transclude: true,\n *       template: '<strong>myWrapper</strong>' +\n *         '<div>ngRepeatToggle.isOpen(): {{$ctrl.ngRepeatToggle.isOpen() | json}}</div>' +\n *         '<my-toggle ng-ref=\"$ctrl.ngRepeatToggle\"><ng-transclude></ng-transclude></my-toggle>'\n *     });\n *   </file>\n *   <file name=\"root.html\">\n *     <strong>myRoot</strong>\n *     <my-toggle ng-ref=\"$ctrl.outerToggle\">Outer Toggle</my-toggle>\n *     <div>outerToggle.isOpen(): {{$ctrl.outerToggle.isOpen() | json}}</div>\n *     <div><em>wrappers assigned to root</em><br>\n *     <div ng-repeat=\"wrapper in $ctrl.wrappers\">\n *       wrapper.ngRepeatToggle.isOpen(): {{wrapper.ngRepeatToggle.isOpen() | json}}\n *     </div>\n *\n *     <ul>\n *       <li ng-repeat=\"(index, value) in [1,2,3]\">\n *         <strong>ngRepeat</strong>\n *         <div>outerToggle.isOpen(): {{$ctrl.outerToggle.isOpen() | json}}</div>\n *         <my-wrapper ng-ref=\"$ctrl.wrappers[index]\">ngRepeat Toggle {{$index + 1}}</my-wrapper>\n *       </li>\n *     </ul>\n *\n *     <div>ngIfToggle.isOpen(): {{ngIfToggle.isOpen()}} // This is always undefined because it's\n *       assigned to the child scope created by ngIf.\n *     </div>\n *     <div ng-if=\"true\">\n          <strong>ngIf</strong>\n *        <my-toggle ng-ref=\"ngIfToggle\">ngIf Toggle</my-toggle>\n *        <div>ngIfToggle.isOpen(): {{ngIfToggle.isOpen() | json}}</div>\n *        <div>outerToggle.isOpen(): {{$ctrl.outerToggle.isOpen() | json}}</div>\n *     </div>\n *   </file>\n *   <file name=\"styles.css\">\n *     ul {\n *       list-style: none;\n *       padding-left: 0;\n *     }\n *\n *     li[ng-repeat] {\n *       background: lightgreen;\n *       padding: 8px;\n *       margin: 8px;\n *     }\n *\n *     [ng-if] {\n *       background: lightgrey;\n *       padding: 8px;\n *     }\n *\n *     my-root {\n *       background: lightgoldenrodyellow;\n *       padding: 8px;\n *       display: block;\n *     }\n *\n *     my-wrapper {\n *       background: lightsalmon;\n *       padding: 8px;\n *       display: block;\n *     }\n *\n *     my-toggle {\n *       background: lightblue;\n *       padding: 8px;\n *       display: block;\n *     }\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      var OuterToggle = function() {\n *        this.toggle = function() {\n *          element(by.buttonText('Outer Toggle')).click();\n *        };\n *        this.isOpen = function() {\n *          return element.all(by.binding('outerToggle.isOpen()')).first().getText();\n *        };\n *      };\n *      var NgRepeatToggle = function(i) {\n *        var parent = element.all(by.repeater('(index, value) in [1,2,3]')).get(i - 1);\n *        this.toggle = function() {\n *          element(by.buttonText('ngRepeat Toggle ' + i)).click();\n *        };\n *        this.isOpen = function() {\n *          return parent.element(by.binding('ngRepeatToggle.isOpen() | json')).getText();\n *        };\n *        this.isOuterOpen = function() {\n *          return parent.element(by.binding('outerToggle.isOpen() | json')).getText();\n *        };\n *      };\n *      var NgRepeatToggles = function() {\n *        var toggles = [1,2,3].map(function(i) { return new NgRepeatToggle(i); });\n *        this.forEach = function(fn) {\n *          toggles.forEach(fn);\n *        };\n *        this.isOuterOpen = function(i) {\n *          return toggles[i - 1].isOuterOpen();\n *        };\n *      };\n *      var NgIfToggle = function() {\n *        var parent = element(by.css('[ng-if]'));\n *        this.toggle = function() {\n *          element(by.buttonText('ngIf Toggle')).click();\n *        };\n *        this.isOpen = function() {\n *          return by.binding('ngIfToggle.isOpen() | json').getText();\n *        };\n *        this.isOuterOpen = function() {\n *          return parent.element(by.binding('outerToggle.isOpen() | json')).getText();\n *        };\n *      };\n *\n *      it('should toggle the outer toggle', function() {\n *        var outerToggle = new OuterToggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): false');\n *        outerToggle.toggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): true');\n *      });\n *\n *      it('should toggle all outer toggles', function() {\n *        var outerToggle = new OuterToggle();\n *        var repeatToggles = new NgRepeatToggles();\n *        var ifToggle = new NgIfToggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): false');\n *        expect(repeatToggles.isOuterOpen(1)).toEqual('outerToggle.isOpen(): false');\n *        expect(repeatToggles.isOuterOpen(2)).toEqual('outerToggle.isOpen(): false');\n *        expect(repeatToggles.isOuterOpen(3)).toEqual('outerToggle.isOpen(): false');\n *        expect(ifToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): false');\n *        outerToggle.toggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): true');\n *        expect(repeatToggles.isOuterOpen(1)).toEqual('outerToggle.isOpen(): true');\n *        expect(repeatToggles.isOuterOpen(2)).toEqual('outerToggle.isOpen(): true');\n *        expect(repeatToggles.isOuterOpen(3)).toEqual('outerToggle.isOpen(): true');\n *        expect(ifToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): true');\n *      });\n *\n *      it('should toggle each repeat iteration separately', function() {\n *        var repeatToggles = new NgRepeatToggles();\n *\n *        repeatToggles.forEach(function(repeatToggle) {\n *          expect(repeatToggle.isOpen()).toEqual('ngRepeatToggle.isOpen(): false');\n *          expect(repeatToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): false');\n *          repeatToggle.toggle();\n *          expect(repeatToggle.isOpen()).toEqual('ngRepeatToggle.isOpen(): true');\n *          expect(repeatToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): false');\n *        });\n *      });\n *   </file>\n * </example>\n *\n */\n\nvar ngRefMinErr = minErr('ngRef');\n\nvar ngRefDirective = ['$parse', function($parse) {\n  return {\n    priority: -1, // Needed for compatibility with element transclusion on the same element\n    restrict: 'A',\n    compile: function(tElement, tAttrs) {\n      // Get the expected controller name, converts <data-some-thing> into \"someThing\"\n      var controllerName = directiveNormalize(nodeName_(tElement));\n\n      // Get the expression for value binding\n      var getter = $parse(tAttrs.ngRef);\n      var setter = getter.assign || function() {\n        throw ngRefMinErr('nonassign', 'Expression in ngRef=\"{0}\" is non-assignable!', tAttrs.ngRef);\n      };\n\n      return function(scope, element, attrs) {\n        var refValue;\n\n        if (attrs.hasOwnProperty('ngRefRead')) {\n          if (attrs.ngRefRead === '$element') {\n            refValue = element;\n          } else {\n            refValue = element.data('$' + attrs.ngRefRead + 'Controller');\n\n            if (!refValue) {\n              throw ngRefMinErr(\n                'noctrl',\n                'The controller for ngRefRead=\"{0}\" could not be found on ngRef=\"{1}\"',\n                attrs.ngRefRead,\n                tAttrs.ngRef\n              );\n            }\n          }\n        } else {\n          refValue = element.data('$' + controllerName + 'Controller');\n        }\n\n        refValue = refValue || element;\n\n        setter(scope, refValue);\n\n        // when the element is removed, remove it (nullify it)\n        element.on('$destroy', function() {\n          // only remove it if value has not changed,\n          // because animations (and other procedures) may duplicate elements\n          if (getter(scope) === refValue) {\n            setter(scope, null);\n          }\n        });\n      };\n    }\n  };\n}];\n\n/* exported ngRepeatDirective */\n\n/**\n * @ngdoc directive\n * @name ngRepeat\n * @multiElement\n * @restrict A\n *\n * @description\n * The `ngRepeat` directive instantiates a template once per item from a collection. Each template\n * instance gets its own scope, where the given loop variable is set to the current collection item,\n * and `$index` is set to the item index or key.\n *\n * Special properties are exposed on the local scope of each template instance, including:\n *\n * | Variable  | Type            | Details                                                                     |\n * |-----------|-----------------|-----------------------------------------------------------------------------|\n * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |\n * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |\n * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |\n * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |\n * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |\n * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |\n *\n * <div class=\"alert alert-info\">\n *   Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.\n *   This may be useful when, for instance, nesting ngRepeats.\n * </div>\n *\n *\n * ## Iterating over object properties\n *\n * It is possible to get `ngRepeat` to iterate over the properties of an object using the following\n * syntax:\n *\n * ```js\n * <div ng-repeat=\"(key, value) in myObj\"> ... </div>\n * ```\n *\n * However, there are a few limitations compared to array iteration:\n *\n * - The JavaScript specification does not define the order of keys\n *   returned for an object, so AngularJS relies on the order returned by the browser\n *   when running `for key in myObj`. Browsers generally follow the strategy of providing\n *   keys in the order in which they were defined, although there are exceptions when keys are deleted\n *   and reinstated. See the\n *   [MDN page on `delete` for more info](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete#Cross-browser_notes).\n *\n * - `ngRepeat` will silently *ignore* object keys starting with `$`, because\n *   it's a prefix used by AngularJS for public (`$`) and private (`$$`) properties.\n *\n * - The built-in filters {@link ng.orderBy orderBy} and {@link ng.filter filter} do not work with\n *   objects, and will throw an error if used with one.\n *\n * If you are hitting any of these limitations, the recommended workaround is to convert your object into an array\n * that is sorted into the order that you prefer before providing it to `ngRepeat`. You could\n * do this with a filter such as [toArrayFilter](http://ngmodules.org/modules/angular-toArrayFilter)\n * or implement a `$watch` on the object yourself.\n *\n *\n * ## Tracking and Duplicates\n *\n * `ngRepeat` uses {@link $rootScope.Scope#$watchCollection $watchCollection} to detect changes in\n * the collection. When a change happens, `ngRepeat` then makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * To minimize creation of DOM elements, `ngRepeat` uses a function\n * to \"keep track\" of all items in the collection and their corresponding DOM elements.\n * For example, if an item is added to the collection, `ngRepeat` will know that all other items\n * already have DOM elements, and will not re-render them.\n *\n * All different types of tracking functions, their syntax, and their support for duplicate\n * items in collections can be found in the\n * {@link ngRepeat#ngRepeat-arguments ngRepeat expression description}.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** If you are working with objects that have a unique identifier property, you\n * should track by this identifier instead of the object instance,\n * e.g. `item in items track by item.id`.\n * Should you reload your data later, `ngRepeat` will not have to rebuild the DOM elements for items\n * it has already rendered, even if the JavaScript objects in the collection have been substituted\n * for new ones. For large collections, this significantly improves rendering performance.\n * </div>\n *\n * ### Effects of DOM Element re-use\n *\n * When DOM elements are re-used, ngRepeat updates the scope for the element, which will\n * automatically update any active bindings on the template. However, other\n * functionality will not be updated, because the element is not re-created:\n *\n * - Directives are not re-compiled\n * - {@link guide/expression#one-time-binding one-time expressions} on the repeated template are not\n * updated if they have stabilized.\n *\n * The above affects all kinds of element re-use due to tracking, but may be especially visible\n * when tracking by `$index` due to the way ngRepeat re-uses elements.\n *\n * The following example shows the effects of different actions with tracking:\n\n  <example module=\"ngRepeat\" name=\"ngRepeat-tracking\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"script.js\">\n      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {\n        var friends = [\n          {name:'John', age:25},\n          {name:'Mary', age:40},\n          {name:'Peter', age:85}\n        ];\n\n        $scope.removeFirst = function() {\n          $scope.friends.shift();\n        };\n\n        $scope.updateAge = function() {\n          $scope.friends.forEach(function(el) {\n            el.age = el.age + 5;\n          });\n        };\n\n        $scope.copy = function() {\n          $scope.friends = angular.copy($scope.friends);\n        };\n\n        $scope.reset = function() {\n          $scope.friends = angular.copy(friends);\n        };\n\n        $scope.reset();\n      });\n    </file>\n    <file name=\"index.html\">\n      <div ng-controller=\"repeatController\">\n        <ol>\n          <li>When you click \"Update Age\", only the first list updates the age, because all others have\n          a one-time binding on the age property. If you then click \"Copy\", the current friend list\n          is copied, and now the second list updates the age, because the identity of the collection items\n          has changed and the list must be re-rendered. The 3rd and 4th list stay the same, because all the\n          items are already known according to their tracking functions.\n          </li>\n          <li>When you click \"Remove First\", the 4th list has the wrong age on both remaining items. This is\n          due to tracking by $index: when the first collection item is removed, ngRepeat reuses the first\n          DOM element for the new first collection item, and so on. Since the age property is one-time\n          bound, the value remains from the collection item which was previously at this index.\n          </li>\n        </ol>\n\n        <button ng-click=\"removeFirst()\">Remove First</button>\n        <button ng-click=\"updateAge()\">Update Age</button>\n        <button ng-click=\"copy()\">Copy</button>\n        <br><button ng-click=\"reset()\">Reset List</button>\n        <br>\n        <code>track by $id(friend)</code> (default):\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends\">\n            {{friend.name}} is {{friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by $id(friend)</code> (default), with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends\">\n            {{friend.name}} is {{::friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by friend.name</code>, with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends track by friend.name\">\n            {{friend.name}}  is {{::friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by $index</code>, with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends track by $index\">\n            {{friend.name}} is {{::friend.age}} years old.\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:30px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:30px;\n      }\n    </file>\n  </example>\n\n *\n * ## Special repeat start and end points\n * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending\n * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.\n * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)\n * up to and including the ending HTML tag where **ng-repeat-end** is placed.\n *\n * The example below makes use of this feature:\n * ```html\n *   <header ng-repeat-start=\"item in items\">\n *     Header {{ item }}\n *   </header>\n *   <div class=\"body\">\n *     Body {{ item }}\n *   </div>\n *   <footer ng-repeat-end>\n *     Footer {{ item }}\n *   </footer>\n * ```\n *\n * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:\n * ```html\n *   <header>\n *     Header A\n *   </header>\n *   <div class=\"body\">\n *     Body A\n *   </div>\n *   <footer>\n *     Footer A\n *   </footer>\n *   <header>\n *     Header B\n *   </header>\n *   <div class=\"body\">\n *     Body B\n *   </div>\n *   <footer>\n *     Footer B\n *   </footer>\n * ```\n *\n * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such\n * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter} | when a new item is added to the list or when an item is revealed after a filter |\n * | {@link ng.$animate#leave leave} | when an item is removed from the list or when an item is filtered out |\n * | {@link ng.$animate#move move } | when an adjacent item is filtered out causing a reorder or when the item contents are reordered |\n *\n * See the example below for defining CSS animations with ngRepeat.\n *\n * @element ANY\n * @scope\n * @priority 1000\n * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These\n *   formats are currently supported:\n *\n *   * `variable in expression` – where variable is the user defined loop variable and `expression`\n *     is a scope expression giving the collection to enumerate.\n *\n *     For example: `album in artist.albums`.\n *\n *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,\n *     and `expression` is the scope expression giving the collection to enumerate.\n *\n *     For example: `(name, age) in {'adam':10, 'amalie':12}`.\n *\n *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking expression\n *     which can be used to associate the objects in the collection with the DOM elements. If no tracking expression\n *     is specified, ng-repeat associates elements by identity. It is an error to have\n *     more than one tracking expression value resolve to the same key. (This would mean that two distinct objects are\n *     mapped to the same DOM element, which is not possible.)\n *\n *     *Default tracking: $id()*: `item in items` is equivalent to `item in items track by $id(item)`.\n *     This implies that the DOM elements will be associated by item identity in the collection.\n *\n *     The built-in `$id()` function can be used to assign a unique\n *     `$$hashKey` property to each item in the collection. This property is then used as a key to associated DOM elements\n *     with the corresponding item in the collection by identity. Moving the same object would move\n *     the DOM element in the same way in the DOM.\n *     Note that the default id function does not support duplicate primitive values (`number`, `string`),\n *     but supports duplictae non-primitive values (`object`) that are *equal* in shape.\n *\n *     *Custom Expression*: It is possible to use any AngularJS expression to compute the tracking\n *     id, for example with a function, or using a property on the collection items.\n *     `item in items track by item.id` is a typical pattern when the items have a unique identifier,\n *     e.g. database id. In this case the object identity does not matter. Two objects are considered\n *     equivalent as long as their `id` property is same.\n *     Tracking by unique identifier is the most performant way and should be used whenever possible.\n *\n *     *$index*: This special property tracks the collection items by their index, and\n *     re-uses the DOM elements that match that index, e.g. `item in items track by $index`. This can\n *     be used for a performance improvement if no unique identfier is available and the identity of\n *     the collection items cannot be easily computed. It also allows duplicates.\n *\n *     <div class=\"alert alert-warning\">\n *       <strong>Note:</strong> Re-using DOM elements can have unforeseen effects. Read the\n *       {@link ngRepeat#tracking-and-duplicates section on tracking and duplicates} for\n *       more info.\n *     </div>\n *\n *     <div class=\"alert alert-warning\">\n *       <strong>Note:</strong> the `track by` expression must come last - after any filters, and the alias expression:\n *       `item in items | filter:searchText as results  track by item.id`\n *     </div>\n *\n *   * `variable in expression as alias_expression` – You can also provide an optional alias expression which will then store the\n *     intermediate results of the repeater after the filters have been applied. Typically this is used to render a special message\n *     when a filter is active on the repeater, but the filtered result set is empty.\n *\n *     For example: `item in items | filter:x as results` will store the fragment of the repeated items as `results`, but only after\n *     the items have been processed through the filter.\n *\n *     Please note that `as [variable name] is not an operator but rather a part of ngRepeat\n *     micro-syntax so it can be used only after all filters (and not as operator, inside an expression).\n *\n *     For example: `item in items | filter : x | orderBy : order | limitTo : limit as results track by item.id` .\n *\n * @example\n * This example uses `ngRepeat` to display a list of people. A filter is used to restrict the displayed\n * results by name or by age. New (entering) and removed (leaving) items are animated.\n  <example module=\"ngRepeat\" name=\"ngRepeat\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"repeatController\">\n        I have {{friends.length}} friends. They are:\n        <input type=\"search\" ng-model=\"q\" placeholder=\"filter friends...\" aria-label=\"filter friends\" />\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends | filter:q as results track by friend.name\">\n            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.\n          </li>\n          <li class=\"animate-repeat\" ng-if=\"results.length === 0\">\n            <strong>No results found...</strong>\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {\n        $scope.friends = [\n          {name:'John', age:25, gender:'boy'},\n          {name:'Jessie', age:30, gender:'girl'},\n          {name:'Johanna', age:28, gender:'girl'},\n          {name:'Joy', age:15, gender:'girl'},\n          {name:'Mary', age:28, gender:'girl'},\n          {name:'Peter', age:95, gender:'boy'},\n          {name:'Sebastian', age:50, gender:'boy'},\n          {name:'Erika', age:27, gender:'girl'},\n          {name:'Patrick', age:40, gender:'boy'},\n          {name:'Samantha', age:60, gender:'girl'}\n        ];\n      });\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:30px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:30px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var friends = element.all(by.repeater('friend in friends'));\n\n      it('should render initial data set', function() {\n        expect(friends.count()).toBe(10);\n        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');\n        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');\n        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');\n        expect(element(by.binding('friends.length')).getText())\n            .toMatch(\"I have 10 friends. They are:\");\n      });\n\n       it('should update repeater when filter predicate changes', function() {\n         expect(friends.count()).toBe(10);\n\n         element(by.model('q')).sendKeys('ma');\n\n         expect(friends.count()).toBe(2);\n         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');\n         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');\n       });\n      </file>\n    </example>\n */\nvar ngRepeatDirective = ['$parse', '$animate', '$compile', function($parse, $animate, $compile) {\n  var NG_REMOVED = '$$NG_REMOVED';\n  var ngRepeatMinErr = minErr('ngRepeat');\n\n  var updateScope = function(scope, index, valueIdentifier, value, keyIdentifier, key, arrayLength) {\n    // TODO(perf): generate setters to shave off ~40ms or 1-1.5%\n    scope[valueIdentifier] = value;\n    if (keyIdentifier) scope[keyIdentifier] = key;\n    scope.$index = index;\n    scope.$first = (index === 0);\n    scope.$last = (index === (arrayLength - 1));\n    scope.$middle = !(scope.$first || scope.$last);\n    // eslint-disable-next-line no-bitwise\n    scope.$odd = !(scope.$even = (index & 1) === 0);\n  };\n\n  var getBlockStart = function(block) {\n    return block.clone[0];\n  };\n\n  var getBlockEnd = function(block) {\n    return block.clone[block.clone.length - 1];\n  };\n\n  var trackByIdArrayFn = function($scope, key, value) {\n    return hashKey(value);\n  };\n\n  var trackByIdObjFn = function($scope, key) {\n    return key;\n  };\n\n  return {\n    restrict: 'A',\n    multiElement: true,\n    transclude: 'element',\n    priority: 1000,\n    terminal: true,\n    $$tlb: true,\n    compile: function ngRepeatCompile($element, $attr) {\n      var expression = $attr.ngRepeat;\n      var ngRepeatEndComment = $compile.$$createComment('end ngRepeat', expression);\n\n      var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+track\\s+by\\s+([\\s\\S]+?))?\\s*$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iexp', 'Expected expression in form of \\'_item_ in _collection_[ track by _id_]\\' but got \\'{0}\\'.',\n            expression);\n      }\n\n      var lhs = match[1];\n      var rhs = match[2];\n      var aliasAs = match[3];\n      var trackByExp = match[4];\n\n      match = lhs.match(/^(?:(\\s*[$\\w]+)|\\(\\s*([$\\w]+)\\s*,\\s*([$\\w]+)\\s*\\))$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iidexp', '\\'_item_\\' in \\'_item_ in _collection_\\' should be an identifier or \\'(_key_, _value_)\\' expression, but got \\'{0}\\'.',\n            lhs);\n      }\n      var valueIdentifier = match[3] || match[1];\n      var keyIdentifier = match[2];\n\n      if (aliasAs && (!/^[$a-zA-Z_][$a-zA-Z0-9_]*$/.test(aliasAs) ||\n          /^(null|undefined|this|\\$index|\\$first|\\$middle|\\$last|\\$even|\\$odd|\\$parent|\\$root|\\$id)$/.test(aliasAs))) {\n        throw ngRepeatMinErr('badident', 'alias \\'{0}\\' is invalid --- must be a valid JS identifier which is not a reserved name.',\n          aliasAs);\n      }\n\n      var trackByIdExpFn;\n\n      if (trackByExp) {\n        var hashFnLocals = {$id: hashKey};\n        var trackByExpGetter = $parse(trackByExp);\n\n        trackByIdExpFn = function($scope, key, value, index) {\n          // assign key, value, and $index to the locals so that they can be used in hash functions\n          if (keyIdentifier) hashFnLocals[keyIdentifier] = key;\n          hashFnLocals[valueIdentifier] = value;\n          hashFnLocals.$index = index;\n          return trackByExpGetter($scope, hashFnLocals);\n        };\n      }\n\n      return function ngRepeatLink($scope, $element, $attr, ctrl, $transclude) {\n\n        // Store a list of elements from previous run. This is a hash where key is the item from the\n        // iterator, and the value is objects with following properties.\n        //   - scope: bound scope\n        //   - clone: previous element.\n        //   - index: position\n        //\n        // We are using no-proto object so that we don't need to guard against inherited props via\n        // hasOwnProperty.\n        var lastBlockMap = createMap();\n\n        //watch props\n        $scope.$watchCollection(rhs, function ngRepeatAction(collection) {\n          var index, length,\n              previousNode = $element[0],     // node that cloned nodes should be inserted after\n                                              // initialized to the comment node anchor\n              nextNode,\n              // Same as lastBlockMap but it has the current state. It will become the\n              // lastBlockMap on the next iteration.\n              nextBlockMap = createMap(),\n              collectionLength,\n              key, value, // key/value of iteration\n              trackById,\n              trackByIdFn,\n              collectionKeys,\n              block,       // last object information {scope, element, id}\n              nextBlockOrder,\n              elementsToRemove;\n\n          if (aliasAs) {\n            $scope[aliasAs] = collection;\n          }\n\n          if (isArrayLike(collection)) {\n            collectionKeys = collection;\n            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;\n          } else {\n            trackByIdFn = trackByIdExpFn || trackByIdObjFn;\n            // if object, extract keys, in enumeration order, unsorted\n            collectionKeys = [];\n            for (var itemKey in collection) {\n              if (hasOwnProperty.call(collection, itemKey) && itemKey.charAt(0) !== '$') {\n                collectionKeys.push(itemKey);\n              }\n            }\n          }\n\n          collectionLength = collectionKeys.length;\n          nextBlockOrder = new Array(collectionLength);\n\n          // locate existing items\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            trackById = trackByIdFn($scope, key, value, index);\n            if (lastBlockMap[trackById]) {\n              // found previously seen block\n              block = lastBlockMap[trackById];\n              delete lastBlockMap[trackById];\n              nextBlockMap[trackById] = block;\n              nextBlockOrder[index] = block;\n            } else if (nextBlockMap[trackById]) {\n              // if collision detected. restore lastBlockMap and throw an error\n              forEach(nextBlockOrder, function(block) {\n                if (block && block.scope) lastBlockMap[block.id] = block;\n              });\n              throw ngRepeatMinErr('dupes',\n                  'Duplicates in a repeater are not allowed. Use \\'track by\\' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}',\n                  expression, trackById, value);\n            } else {\n              // new never before seen block\n              nextBlockOrder[index] = {id: trackById, scope: undefined, clone: undefined};\n              nextBlockMap[trackById] = true;\n            }\n          }\n\n          // Clear the value property from the hashFnLocals object to prevent a reference to the last value\n          // being leaked into the ngRepeatCompile function scope\n          if (hashFnLocals) {\n            hashFnLocals[valueIdentifier] = undefined;\n          }\n\n          // remove leftover items\n          for (var blockKey in lastBlockMap) {\n            block = lastBlockMap[blockKey];\n            elementsToRemove = getBlockNodes(block.clone);\n            $animate.leave(elementsToRemove);\n            if (elementsToRemove[0].parentNode) {\n              // if the element was not removed yet because of pending animation, mark it as deleted\n              // so that we can ignore it later\n              for (index = 0, length = elementsToRemove.length; index < length; index++) {\n                elementsToRemove[index][NG_REMOVED] = true;\n              }\n            }\n            block.scope.$destroy();\n          }\n\n          // we are not using forEach for perf reasons (trying to avoid #call)\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            block = nextBlockOrder[index];\n\n            if (block.scope) {\n              // if we have already seen this object, then we need to reuse the\n              // associated scope/element\n\n              nextNode = previousNode;\n\n              // skip nodes that are already pending removal via leave animation\n              do {\n                nextNode = nextNode.nextSibling;\n              } while (nextNode && nextNode[NG_REMOVED]);\n\n              if (getBlockStart(block) !== nextNode) {\n                // existing item which got moved\n                $animate.move(getBlockNodes(block.clone), null, previousNode);\n              }\n              previousNode = getBlockEnd(block);\n              updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n            } else {\n              // new item which we don't know about\n              $transclude(function ngRepeatTransclude(clone, scope) {\n                block.scope = scope;\n                // http://jsperf.com/clone-vs-createcomment\n                var endNode = ngRepeatEndComment.cloneNode(false);\n                clone[clone.length++] = endNode;\n\n                $animate.enter(clone, null, previousNode);\n                previousNode = endNode;\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block.clone = clone;\n                nextBlockMap[block.id] = block;\n                updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n              });\n            }\n          }\n          lastBlockMap = nextBlockMap;\n        });\n      };\n    }\n  };\n}];\n\nvar NG_HIDE_CLASS = 'ng-hide';\nvar NG_HIDE_IN_PROGRESS_CLASS = 'ng-hide-animate';\n/**\n * @ngdoc directive\n * @name ngShow\n * @multiElement\n *\n * @description\n * The `ngShow` directive shows or hides the given HTML element based on the expression provided to\n * the `ngShow` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is visible) -->\n * <div ng-show=\"myValue\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is hidden) -->\n * <div ng-show=\"myValue\" class=\"ng-hide\"></div>\n * ```\n *\n * When the `ngShow` expression evaluates to a falsy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When truthy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override anything in CSS and the animations will work around the\n * display style.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                        |\n * |-----------------------------------------------------|---------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden. |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngShow` expression evaluates to a truthy value and just before contents are set to visible.        |\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @element ANY\n * @param {expression} ngShow If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is shown/hidden respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-simple\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element animate-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-complex\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element funky-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n *\n * @knownIssue\n *\n * ### Flickering when using ngShow to toggle between elements\n *\n * When using {@link ngShow} and / or {@link ngHide} to toggle between elements, it can\n * happen that both the element to show and the element to hide are visible for a very short time.\n *\n * This usually happens when the {@link ngAnimate ngAnimate module} is included, but no actual animations\n * are defined for {@link ngShow} / {@link ngHide}. Internet Explorer is affected more often than\n * other browsers.\n *\n * There are several way to mitigate this problem:\n *\n * - {@link guide/animations#how-to-selectively-enable-disable-and-skip-animations Disable animations on the affected elements}.\n * - Use {@link ngIf} or {@link ngSwitch} instead of {@link ngShow} / {@link ngHide}.\n * - Use the special CSS selector `ng-hide.ng-hide-animate` to set `{display: none}` or similar on the affected elements.\n * - Use `ng-class=\"{'ng-hide': expression}` instead of instead of {@link ngShow} / {@link ngHide}.\n * - Define an animation on the affected elements.\n */\nvar ngShowDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngShow, function ngShowWatchAction(value) {\n        // we're adding a temporary, animation-specific class for ng-hide since this way\n        // we can control when the element is actually displayed on screen without having\n        // to have a global/greedy CSS selector that breaks when other animations are run.\n        // Read: https://github.com/angular/angular.js/issues/9103#issuecomment-58335845\n        $animate[value ? 'removeClass' : 'addClass'](element, NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngHide\n * @multiElement\n *\n * @description\n * The `ngHide` directive shows or hides the given HTML element based on the expression provided to\n * the `ngHide` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is hidden) -->\n * <div ng-hide=\"myValue\" class=\"ng-hide\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is visible) -->\n * <div ng-hide=\"myValue\"></div>\n * ```\n *\n * When the `ngHide` expression evaluates to a truthy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When falsy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the\n * display style.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                     |\n * |-----------------------------------------------------|------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden.  |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngHide` expression evaluates to a non truthy value and just before contents are set to visible. |\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @element ANY\n * @param {expression} ngHide If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is hidden/shown respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-simple\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element animate-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-complex\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element funky-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n *\n * @knownIssue\n *\n * ### Flickering when using ngHide to toggle between elements\n *\n * When using {@link ngShow} and / or {@link ngHide} to toggle between elements, it can\n * happen that both the element to show and the element to hide are visible for a very short time.\n *\n * This usually happens when the {@link ngAnimate ngAnimate module} is included, but no actual animations\n * are defined for {@link ngShow} / {@link ngHide}. Internet Explorer is affected more often than\n * other browsers.\n *\n * There are several way to mitigate this problem:\n *\n * - {@link guide/animations#how-to-selectively-enable-disable-and-skip-animations Disable animations on the affected elements}.\n * - Use {@link ngIf} or {@link ngSwitch} instead of {@link ngShow} / {@link ngHide}.\n * - Use the special CSS selector `ng-hide.ng-hide-animate` to set `{display: none}` or similar on the affected elements.\n * - Use `ng-class=\"{'ng-hide': expression}` instead of instead of {@link ngShow} / {@link ngHide}.\n * - Define an animation on the affected elements.\n */\nvar ngHideDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngHide, function ngHideWatchAction(value) {\n        // The comment inside of the ngShowDirective explains why we add and\n        // remove a temporary class for the show/hide animation\n        $animate[value ? 'addClass' : 'removeClass'](element,NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngStyle\n * @restrict AC\n *\n * @description\n * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `style`\n * attribute, when using the `ngStyle` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @element ANY\n * @param {expression} ngStyle\n *\n * {@link guide/expression Expression} which evals to an\n * object whose keys are CSS style names and values are corresponding values for those CSS\n * keys.\n *\n * Since some CSS style names are not valid keys for an object, they must be quoted.\n * See the 'background-color' style in the example below.\n *\n * @example\n   <example name=\"ng-style\">\n     <file name=\"index.html\">\n        <input type=\"button\" value=\"set color\" ng-click=\"myStyle={color:'red'}\">\n        <input type=\"button\" value=\"set background\" ng-click=\"myStyle={'background-color':'blue'}\">\n        <input type=\"button\" value=\"clear\" ng-click=\"myStyle={}\">\n        <br/>\n        <span ng-style=\"myStyle\">Sample Text</span>\n        <pre>myStyle={{myStyle}}</pre>\n     </file>\n     <file name=\"style.css\">\n       span {\n         color: black;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var colorSpan = element(by.css('span'));\n\n       it('should check ng-style', function() {\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n         element(by.css('input[value=\\'set color\\']')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');\n         element(by.css('input[value=clear]')).click();\n         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');\n       });\n     </file>\n   </example>\n */\nvar ngStyleDirective = ngDirective(function(scope, element, attr) {\n  scope.$watchCollection(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {\n    if (oldStyles && (newStyles !== oldStyles)) {\n      forEach(oldStyles, function(val, style) { element.css(style, ''); });\n    }\n    if (newStyles) element.css(newStyles);\n  });\n});\n\n/**\n * @ngdoc directive\n * @name ngSwitch\n * @restrict EA\n *\n * @description\n * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.\n * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location\n * as specified in the template.\n *\n * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it\n * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element\n * matches the value obtained from the evaluated expression. In other words, you define a container element\n * (where you place the directive), place an expression on the **`on=\"...\"` attribute**\n * (or the **`ng-switch=\"...\"` attribute**), define any inner elements inside of the directive and place\n * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on\n * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default\n * attribute is displayed.\n *\n * <div class=\"alert alert-info\">\n * Be aware that the attribute values to match against cannot be expressions. They are interpreted\n * as literal string values to match against.\n * For example, **`ng-switch-when=\"someVal\"`** will match against the string `\"someVal\"` not against the\n * value of the expression `$scope.someVal`.\n * </div>\n\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | after the ngSwitch contents change and the matched child element is placed inside the container |\n * | {@link ng.$animate#leave leave}  | after the ngSwitch contents change and just before the former contents are removed from the DOM |\n *\n * @usage\n *\n * ```\n * <ANY ng-switch=\"expression\">\n *   <ANY ng-switch-when=\"matchValue1\">...</ANY>\n *   <ANY ng-switch-when=\"matchValue2\">...</ANY>\n *   <ANY ng-switch-default>...</ANY>\n * </ANY>\n * ```\n *\n *\n * @scope\n * @priority 1200\n * @param {*} ngSwitch|on expression to match against <code>ng-switch-when</code>.\n * On child elements add:\n *\n * * `ngSwitchWhen`: the case statement to match against. If match then this\n *   case will be displayed. If the same match appears multiple times, all the\n *   elements will be displayed. It is possible to associate multiple values to\n *   the same `ngSwitchWhen` by defining the optional attribute\n *   `ngSwitchWhenSeparator`. The separator will be used to split the value of\n *   the `ngSwitchWhen` attribute into multiple tokens, and the element will show\n *   if any of the `ngSwitch` evaluates to any of these tokens.\n * * `ngSwitchDefault`: the default case when no other case match. If there\n *   are multiple default cases, all of them will be displayed when no other\n *   case match.\n *\n *\n * @example\n  <example module=\"switchExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-switch\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <select ng-model=\"selection\" ng-options=\"item for item in items\">\n        </select>\n        <code>selection={{selection}}</code>\n        <hr/>\n        <div class=\"animate-switch-container\"\n          ng-switch on=\"selection\">\n            <div class=\"animate-switch\" ng-switch-when=\"settings|options\" ng-switch-when-separator=\"|\">Settings Div</div>\n            <div class=\"animate-switch\" ng-switch-when=\"home\">Home Span</div>\n            <div class=\"animate-switch\" ng-switch-default>default</div>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('switchExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.items = ['settings', 'home', 'options', 'other'];\n          $scope.selection = $scope.items[0];\n        }]);\n    </file>\n    <file name=\"animations.css\">\n      .animate-switch-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .animate-switch {\n        padding:10px;\n      }\n\n      .animate-switch.ng-animate {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n      }\n\n      .animate-switch.ng-leave.ng-leave-active,\n      .animate-switch.ng-enter {\n        top:-50px;\n      }\n      .animate-switch.ng-leave,\n      .animate-switch.ng-enter.ng-enter-active {\n        top:0;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var switchElem = element(by.css('[ng-switch]'));\n      var select = element(by.model('selection'));\n\n      it('should start in settings', function() {\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should change to home', function() {\n        select.all(by.css('option')).get(1).click();\n        expect(switchElem.getText()).toMatch(/Home Span/);\n      });\n      it('should change to settings via \"options\"', function() {\n        select.all(by.css('option')).get(2).click();\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should select default', function() {\n        select.all(by.css('option')).get(3).click();\n        expect(switchElem.getText()).toMatch(/default/);\n      });\n    </file>\n  </example>\n */\nvar ngSwitchDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    require: 'ngSwitch',\n\n    // asks for $scope to fool the BC controller module\n    controller: ['$scope', function NgSwitchController() {\n     this.cases = {};\n    }],\n    link: function(scope, element, attr, ngSwitchController) {\n      var watchExpr = attr.ngSwitch || attr.on,\n          selectedTranscludes = [],\n          selectedElements = [],\n          previousLeaveAnimations = [],\n          selectedScopes = [];\n\n      var spliceFactory = function(array, index) {\n          return function(response) {\n            if (response !== false) array.splice(index, 1);\n          };\n      };\n\n      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {\n        var i, ii;\n\n        // Start with the last, in case the array is modified during the loop\n        while (previousLeaveAnimations.length) {\n          $animate.cancel(previousLeaveAnimations.pop());\n        }\n\n        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {\n          var selected = getBlockNodes(selectedElements[i].clone);\n          selectedScopes[i].$destroy();\n          var runner = previousLeaveAnimations[i] = $animate.leave(selected);\n          runner.done(spliceFactory(previousLeaveAnimations, i));\n        }\n\n        selectedElements.length = 0;\n        selectedScopes.length = 0;\n\n        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {\n          forEach(selectedTranscludes, function(selectedTransclude) {\n            selectedTransclude.transclude(function(caseElement, selectedScope) {\n              selectedScopes.push(selectedScope);\n              var anchor = selectedTransclude.element;\n              caseElement[caseElement.length++] = $compile.$$createComment('end ngSwitchWhen');\n              var block = { clone: caseElement };\n\n              selectedElements.push(block);\n              $animate.enter(caseElement, anchor.parent(), anchor);\n            });\n          });\n        }\n      });\n    }\n  };\n}];\n\nvar ngSwitchWhenDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attrs, ctrl, $transclude) {\n\n    var cases = attrs.ngSwitchWhen.split(attrs.ngSwitchWhenSeparator).sort().filter(\n      // Filter duplicate cases\n      function(element, index, array) { return array[index - 1] !== element; }\n    );\n\n    forEach(cases, function(whenCase) {\n      ctrl.cases['!' + whenCase] = (ctrl.cases['!' + whenCase] || []);\n      ctrl.cases['!' + whenCase].push({ transclude: $transclude, element: element });\n    });\n  }\n});\n\nvar ngSwitchDefaultDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attr, ctrl, $transclude) {\n    ctrl.cases['?'] = (ctrl.cases['?'] || []);\n    ctrl.cases['?'].push({ transclude: $transclude, element: element });\n   }\n});\n\n/**\n * @ngdoc directive\n * @name ngTransclude\n * @restrict EAC\n *\n * @description\n * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.\n *\n * You can specify that you want to insert a named transclusion slot, instead of the default slot, by providing the slot name\n * as the value of the `ng-transclude` or `ng-transclude-slot` attribute.\n *\n * If the transcluded content is not empty (i.e. contains one or more DOM nodes, including whitespace text nodes), any existing\n * content of this element will be removed before the transcluded content is inserted.\n * If the transcluded content is empty (or only whitespace), the existing content is left intact. This lets you provide fallback\n * content in the case that no transcluded content is provided.\n *\n * @element ANY\n *\n * @param {string} ngTransclude|ngTranscludeSlot the name of the slot to insert at this point. If this is not provided, is empty\n *                                               or its value is the same as the name of the attribute then the default slot is used.\n *\n * @example\n * ### Basic transclusion\n * This example demonstrates basic transclusion of content into a component directive.\n * <example name=\"simpleTranscludeExample\" module=\"transcludeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('transcludeExample', [])\n *        .directive('pane', function(){\n *           return {\n *             restrict: 'E',\n *             transclude: true,\n *             scope: { title:'@' },\n *             template: '<div style=\"border: 1px solid black;\">' +\n *                         '<div style=\"background-color: gray\">{{title}}</div>' +\n *                         '<ng-transclude></ng-transclude>' +\n *                       '</div>'\n *           };\n *       })\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.title = 'Lorem Ipsum';\n *         $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *       }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *       <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *       <pane title=\"{{title}}\"><span>{{text}}</span></pane>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.binding('title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *      });\n *   </file>\n * </example>\n *\n * @example\n * ### Transclude fallback content\n * This example shows how to use `NgTransclude` with fallback content, that\n * is displayed if no transcluded content is provided.\n *\n * <example module=\"transcludeFallbackContentExample\" name=\"ng-transclude\">\n * <file name=\"index.html\">\n * <script>\n * angular.module('transcludeFallbackContentExample', [])\n * .directive('myButton', function(){\n *             return {\n *               restrict: 'E',\n *               transclude: true,\n *               scope: true,\n *               template: '<button style=\"cursor: pointer;\">' +\n *                           '<ng-transclude>' +\n *                             '<b style=\"color: red;\">Button1</b>' +\n *                           '</ng-transclude>' +\n *                         '</button>'\n *             };\n *         });\n * </script>\n * <!-- fallback button content -->\n * <my-button id=\"fallback\"></my-button>\n * <!-- modified button content -->\n * <my-button id=\"modified\">\n *   <i style=\"color: green;\">Button2</i>\n * </my-button>\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n * it('should have different transclude element content', function() {\n *          expect(element(by.id('fallback')).getText()).toBe('Button1');\n *          expect(element(by.id('modified')).getText()).toBe('Button2');\n *        });\n * </file>\n * </example>\n *\n * @example\n * ### Multi-slot transclusion\n * This example demonstrates using multi-slot transclusion in a component directive.\n * <example name=\"multiSlotTranscludeExample\" module=\"multiSlotTranscludeExample\">\n *   <file name=\"index.html\">\n *    <style>\n *      .title, .footer {\n *        background-color: gray\n *      }\n *    </style>\n *    <div ng-controller=\"ExampleController\">\n *      <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *      <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *      <pane>\n *        <pane-title><a ng-href=\"{{link}}\">{{title}}</a></pane-title>\n *        <pane-body><p>{{text}}</p></pane-body>\n *      </pane>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('multiSlotTranscludeExample', [])\n *     .directive('pane', function() {\n *        return {\n *          restrict: 'E',\n *          transclude: {\n *            'title': '?paneTitle',\n *            'body': 'paneBody',\n *            'footer': '?paneFooter'\n *          },\n *          template: '<div style=\"border: 1px solid black;\">' +\n *                      '<div class=\"title\" ng-transclude=\"title\">Fallback Title</div>' +\n *                      '<div ng-transclude=\"body\"></div>' +\n *                      '<div class=\"footer\" ng-transclude=\"footer\">Fallback Footer</div>' +\n *                    '</div>'\n *        };\n *    })\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.title = 'Lorem Ipsum';\n *      $scope.link = 'https://google.com';\n *      $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *    }]);\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded the title and the body', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.css('.title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *        expect(element(by.css('.footer')).getText()).toEqual('Fallback Footer');\n *      });\n *   </file>\n * </example>\n */\nvar ngTranscludeMinErr = minErr('ngTransclude');\nvar ngTranscludeDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'EAC',\n    compile: function ngTranscludeCompile(tElement) {\n\n      // Remove and cache any original content to act as a fallback\n      var fallbackLinkFn = $compile(tElement.contents());\n      tElement.empty();\n\n      return function ngTranscludePostLink($scope, $element, $attrs, controller, $transclude) {\n\n        if (!$transclude) {\n          throw ngTranscludeMinErr('orphan',\n          'Illegal use of ngTransclude directive in the template! ' +\n          'No parent directive that requires a transclusion found. ' +\n          'Element: {0}',\n          startingTag($element));\n        }\n\n\n        // If the attribute is of the form: `ng-transclude=\"ng-transclude\"` then treat it like the default\n        if ($attrs.ngTransclude === $attrs.$attr.ngTransclude) {\n          $attrs.ngTransclude = '';\n        }\n        var slotName = $attrs.ngTransclude || $attrs.ngTranscludeSlot;\n\n        // If the slot is required and no transclusion content is provided then this call will throw an error\n        $transclude(ngTranscludeCloneAttachFn, null, slotName);\n\n        // If the slot is optional and no transclusion content is provided then use the fallback content\n        if (slotName && !$transclude.isSlotFilled(slotName)) {\n          useFallbackContent();\n        }\n\n        function ngTranscludeCloneAttachFn(clone, transcludedScope) {\n          if (clone.length && notWhitespace(clone)) {\n            $element.append(clone);\n          } else {\n            useFallbackContent();\n            // There is nothing linked against the transcluded scope since no content was available,\n            // so it should be safe to clean up the generated scope.\n            transcludedScope.$destroy();\n          }\n        }\n\n        function useFallbackContent() {\n          // Since this is the fallback content rather than the transcluded content,\n          // we link against the scope of this directive rather than the transcluded scope\n          fallbackLinkFn($scope, function(clone) {\n            $element.append(clone);\n          });\n        }\n\n        function notWhitespace(nodes) {\n          for (var i = 0, ii = nodes.length; i < ii; i++) {\n            var node = nodes[i];\n            if (node.nodeType !== NODE_TYPE_TEXT || node.nodeValue.trim()) {\n              return true;\n            }\n          }\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name script\n * @restrict E\n *\n * @description\n * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the\n * template can be used by {@link ng.directive:ngInclude `ngInclude`},\n * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the\n * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be\n * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.\n *\n * @param {string} type Must be set to `'text/ng-template'`.\n * @param {string} id Cache name of the template.\n *\n * @example\n  <example  name=\"script-tag\">\n    <file name=\"index.html\">\n      <script type=\"text/ng-template\" id=\"/tpl.html\">\n        Content of the template.\n      </script>\n\n      <a ng-click=\"currentTpl='/tpl.html'\" id=\"tpl-link\">Load inlined template</a>\n      <div id=\"tpl-content\" ng-include src=\"currentTpl\"></div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should load template defined inside script tag', function() {\n        element(by.css('#tpl-link')).click();\n        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);\n      });\n    </file>\n  </example>\n */\nvar scriptDirective = ['$templateCache', function($templateCache) {\n  return {\n    restrict: 'E',\n    terminal: true,\n    compile: function(element, attr) {\n      if (attr.type === 'text/ng-template') {\n        var templateUrl = attr.id,\n            text = element[0].text;\n\n        $templateCache.put(templateUrl, text);\n      }\n    }\n  };\n}];\n\n/* exported selectDirective, optionDirective */\n\nvar noopNgModelController = { $setViewValue: noop, $render: noop };\n\nfunction setOptionSelectedStatus(optionEl, value) {\n  optionEl.prop('selected', value);\n  /**\n   * When unselecting an option, setting the property to null / false should be enough\n   * However, screenreaders might react to the selected attribute instead, see\n   * https://github.com/angular/angular.js/issues/14419\n   * Note: \"selected\" is a boolean attr and will be removed when the \"value\" arg in attr() is false\n   * or null\n   */\n  optionEl.attr('selected', value);\n}\n\n/**\n * @ngdoc type\n * @name  select.SelectController\n *\n * @description\n * The controller for the {@link ng.select select} directive. The controller exposes\n * a few utility methods that can be used to augment the behavior of a regular or an\n * {@link ng.ngOptions ngOptions} select element.\n *\n * @example\n * ### Set a custom error when the unknown option is selected\n *\n * This example sets a custom error \"unknownValue\" on the ngModelController\n * when the select element's unknown option is selected, i.e. when the model is set to a value\n * that is not matched by any option.\n *\n * <example name=\"select-unknown-value-error\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"testSelect\"> Single select: </label><br>\n *     <select name=\"testSelect\" ng-model=\"selected\" unknown-value-error>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <span class=\"error\" ng-if=\"myForm.testSelect.$error.unknownValue\">\n *       Error: The current model doesn't match any option</span><br>\n *\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.selected = null;\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.selected = 'nonsense';\n *      };\n *   }])\n *   .directive('unknownValueError', function() {\n *     return {\n *       require: ['ngModel', 'select'],\n *       link: function(scope, element, attrs, ctrls) {\n *         var ngModelCtrl = ctrls[0];\n *         var selectCtrl = ctrls[1];\n *\n *         ngModelCtrl.$validators.unknownValue = function(modelValue, viewValue) {\n *           if (selectCtrl.$isUnknownOptionSelected()) {\n *             return false;\n *           }\n *\n *           return true;\n *         };\n *       }\n *\n *     };\n *   });\n * </file>\n *</example>\n *\n *\n * @example\n * ### Set the \"required\" error when the unknown option is selected.\n *\n * By default, the \"required\" error on the ngModelController is only set on a required select\n * when the empty option is selected. This example adds a custom directive that also sets the\n * error when the unknown option is selected.\n *\n * <example name=\"select-unknown-value-required\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"testSelect\"> Select: </label><br>\n *     <select name=\"testSelect\" ng-model=\"selected\" required unknown-value-required>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <span class=\"error\" ng-if=\"myForm.testSelect.$error.required\">Error: Please select a value</span><br>\n *\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.selected = null;\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.selected = 'nonsense';\n *      };\n *   }])\n *   .directive('unknownValueRequired', function() {\n *     return {\n *       priority: 1, // This directive must run after the required directive has added its validator\n *       require: ['ngModel', 'select'],\n *       link: function(scope, element, attrs, ctrls) {\n *         var ngModelCtrl = ctrls[0];\n *         var selectCtrl = ctrls[1];\n *\n *         var originalRequiredValidator = ngModelCtrl.$validators.required;\n *\n *         ngModelCtrl.$validators.required = function() {\n *           if (attrs.required && selectCtrl.$isUnknownOptionSelected()) {\n *             return false;\n *           }\n *\n *           return originalRequiredValidator.apply(this, arguments);\n *         };\n *       }\n *     };\n *   });\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n *  it('should show the error message when the unknown option is selected', function() {\n\n      var error = element(by.className('error'));\n\n      expect(error.getText()).toBe('Error: Please select a value');\n\n      element(by.cssContainingText('option', 'Option 1')).click();\n\n      expect(error.isPresent()).toBe(false);\n\n      element(by.tagName('button')).click();\n\n      expect(error.getText()).toBe('Error: Please select a value');\n    });\n * </file>\n *</example>\n *\n *\n */\nvar SelectController =\n        ['$element', '$scope', /** @this */ function($element, $scope) {\n\n  var self = this,\n      optionsMap = new NgMap();\n\n  self.selectValueMap = {}; // Keys are the hashed values, values the original values\n\n  // If the ngModel doesn't get provided then provide a dummy noop version to prevent errors\n  self.ngModelCtrl = noopNgModelController;\n  self.multiple = false;\n\n  // The \"unknown\" option is one that is prepended to the list if the viewValue\n  // does not match any of the options. When it is rendered the value of the unknown\n  // option is '? XXX ?' where XXX is the hashKey of the value that is not known.\n  //\n  // Support: IE 9 only\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  self.unknownOption = jqLite(window.document.createElement('option'));\n\n  // The empty option is an option with the value '' that the application developer can\n  // provide inside the select. It is always selectable and indicates that a \"null\" selection has\n  // been made by the user.\n  // If the select has an empty option, and the model of the select is set to \"undefined\" or \"null\",\n  // the empty option is selected.\n  // If the model is set to a different unmatched value, the unknown option is rendered and\n  // selected, i.e both are present, because a \"null\" selection and an unknown value are different.\n  self.hasEmptyOption = false;\n  self.emptyOption = undefined;\n\n  self.renderUnknownOption = function(val) {\n    var unknownVal = self.generateUnknownOptionValue(val);\n    self.unknownOption.val(unknownVal);\n    $element.prepend(self.unknownOption);\n    setOptionSelectedStatus(self.unknownOption, true);\n    $element.val(unknownVal);\n  };\n\n  self.updateUnknownOption = function(val) {\n    var unknownVal = self.generateUnknownOptionValue(val);\n    self.unknownOption.val(unknownVal);\n    setOptionSelectedStatus(self.unknownOption, true);\n    $element.val(unknownVal);\n  };\n\n  self.generateUnknownOptionValue = function(val) {\n    return '? ' + hashKey(val) + ' ?';\n  };\n\n  self.removeUnknownOption = function() {\n    if (self.unknownOption.parent()) self.unknownOption.remove();\n  };\n\n  self.selectEmptyOption = function() {\n    if (self.emptyOption) {\n      $element.val('');\n      setOptionSelectedStatus(self.emptyOption, true);\n    }\n  };\n\n  self.unselectEmptyOption = function() {\n    if (self.hasEmptyOption) {\n      setOptionSelectedStatus(self.emptyOption, false);\n    }\n  };\n\n  $scope.$on('$destroy', function() {\n    // disable unknown option so that we don't do work when the whole select is being destroyed\n    self.renderUnknownOption = noop;\n  });\n\n  // Read the value of the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.readValue = function readSingleValue() {\n    var val = $element.val();\n    // ngValue added option values are stored in the selectValueMap, normal interpolations are not\n    var realVal = val in self.selectValueMap ? self.selectValueMap[val] : val;\n\n    if (self.hasOption(realVal)) {\n      return realVal;\n    }\n\n    return null;\n  };\n\n\n  // Write the value to the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.writeValue = function writeSingleValue(value) {\n    // Make sure to remove the selected attribute from the previously selected option\n    // Otherwise, screen readers might get confused\n    var currentlySelectedOption = $element[0].options[$element[0].selectedIndex];\n    if (currentlySelectedOption) setOptionSelectedStatus(jqLite(currentlySelectedOption), false);\n\n    if (self.hasOption(value)) {\n      self.removeUnknownOption();\n\n      var hashedVal = hashKey(value);\n      $element.val(hashedVal in self.selectValueMap ? hashedVal : value);\n\n      // Set selected attribute and property on selected option for screen readers\n      var selectedOption = $element[0].options[$element[0].selectedIndex];\n      setOptionSelectedStatus(jqLite(selectedOption), true);\n    } else {\n      self.selectUnknownOrEmptyOption(value);\n    }\n  };\n\n\n  // Tell the select control that an option, with the given value, has been added\n  self.addOption = function(value, element) {\n    // Skip comment nodes, as they only pollute the `optionsMap`\n    if (element[0].nodeType === NODE_TYPE_COMMENT) return;\n\n    assertNotHasOwnProperty(value, '\"option value\"');\n    if (value === '') {\n      self.hasEmptyOption = true;\n      self.emptyOption = element;\n    }\n    var count = optionsMap.get(value) || 0;\n    optionsMap.set(value, count + 1);\n    // Only render at the end of a digest. This improves render performance when many options\n    // are added during a digest and ensures all relevant options are correctly marked as selected\n    scheduleRender();\n  };\n\n  // Tell the select control that an option, with the given value, has been removed\n  self.removeOption = function(value) {\n    var count = optionsMap.get(value);\n    if (count) {\n      if (count === 1) {\n        optionsMap.delete(value);\n        if (value === '') {\n          self.hasEmptyOption = false;\n          self.emptyOption = undefined;\n        }\n      } else {\n        optionsMap.set(value, count - 1);\n      }\n    }\n  };\n\n  // Check whether the select control has an option matching the given value\n  self.hasOption = function(value) {\n    return !!optionsMap.get(value);\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$hasEmptyOption\n   *\n   * @description\n   *\n   * Returns `true` if the select element currently has an empty option\n   * element, i.e. an option that signifies that the select is empty / the selection is null.\n   *\n   */\n  self.$hasEmptyOption = function() {\n    return self.hasEmptyOption;\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$isUnknownOptionSelected\n   *\n   * @description\n   *\n   * Returns `true` if the select element's unknown option is selected. The unknown option is added\n   * and automatically selected whenever the select model doesn't match any option.\n   *\n   */\n  self.$isUnknownOptionSelected = function() {\n    // Presence of the unknown option means it is selected\n    return $element[0].options[0] === self.unknownOption[0];\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$isEmptyOptionSelected\n   *\n   * @description\n   *\n   * Returns `true` if the select element has an empty option and this empty option is currently\n   * selected. Returns `false` if the select element has no empty option or it is not selected.\n   *\n   */\n  self.$isEmptyOptionSelected = function() {\n    return self.hasEmptyOption && $element[0].options[$element[0].selectedIndex] === self.emptyOption[0];\n  };\n\n  self.selectUnknownOrEmptyOption = function(value) {\n    if (value == null && self.emptyOption) {\n      self.removeUnknownOption();\n      self.selectEmptyOption();\n    } else if (self.unknownOption.parent().length) {\n      self.updateUnknownOption(value);\n    } else {\n      self.renderUnknownOption(value);\n    }\n  };\n\n  var renderScheduled = false;\n  function scheduleRender() {\n    if (renderScheduled) return;\n    renderScheduled = true;\n    $scope.$$postDigest(function() {\n      renderScheduled = false;\n      self.ngModelCtrl.$render();\n    });\n  }\n\n  var updateScheduled = false;\n  function scheduleViewValueUpdate(renderAfter) {\n    if (updateScheduled) return;\n\n    updateScheduled = true;\n\n    $scope.$$postDigest(function() {\n      if ($scope.$$destroyed) return;\n\n      updateScheduled = false;\n      self.ngModelCtrl.$setViewValue(self.readValue());\n      if (renderAfter) self.ngModelCtrl.$render();\n    });\n  }\n\n\n  self.registerOption = function(optionScope, optionElement, optionAttrs, interpolateValueFn, interpolateTextFn) {\n\n    if (optionAttrs.$attr.ngValue) {\n      // The value attribute is set by ngValue\n      var oldVal, hashedVal;\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n\n        var removal;\n        var previouslySelected = optionElement.prop('selected');\n\n        if (isDefined(hashedVal)) {\n          self.removeOption(oldVal);\n          delete self.selectValueMap[hashedVal];\n          removal = true;\n        }\n\n        hashedVal = hashKey(newVal);\n        oldVal = newVal;\n        self.selectValueMap[hashedVal] = newVal;\n        self.addOption(newVal, optionElement);\n        // Set the attribute directly instead of using optionAttrs.$set - this stops the observer\n        // from firing a second time. Other $observers on value will also get the result of the\n        // ngValue expression, not the hashed value\n        optionElement.attr('value', hashedVal);\n\n        if (removal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n\n      });\n    } else if (interpolateValueFn) {\n      // The value attribute is interpolated\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n        // This method is overwritten in ngOptions and has side-effects!\n        self.readValue();\n\n        var removal;\n        var previouslySelected = optionElement.prop('selected');\n\n        if (isDefined(oldVal)) {\n          self.removeOption(oldVal);\n          removal = true;\n        }\n        oldVal = newVal;\n        self.addOption(newVal, optionElement);\n\n        if (removal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n      });\n    } else if (interpolateTextFn) {\n      // The text content is interpolated\n      optionScope.$watch(interpolateTextFn, function interpolateWatchAction(newVal, oldVal) {\n        optionAttrs.$set('value', newVal);\n        var previouslySelected = optionElement.prop('selected');\n        if (oldVal !== newVal) {\n          self.removeOption(oldVal);\n        }\n        self.addOption(newVal, optionElement);\n\n        if (oldVal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n      });\n    } else {\n      // The value attribute is static\n      self.addOption(optionAttrs.value, optionElement);\n    }\n\n\n    optionAttrs.$observe('disabled', function(newVal) {\n\n      // Since model updates will also select disabled options (like ngOptions),\n      // we only have to handle options becoming disabled, not enabled\n\n      if (newVal === 'true' || newVal && optionElement.prop('selected')) {\n        if (self.multiple) {\n          scheduleViewValueUpdate(true);\n        } else {\n          self.ngModelCtrl.$setViewValue(null);\n          self.ngModelCtrl.$render();\n        }\n      }\n    });\n\n    optionElement.on('$destroy', function() {\n      var currentValue = self.readValue();\n      var removeValue = optionAttrs.value;\n\n      self.removeOption(removeValue);\n      scheduleRender();\n\n      if (self.multiple && currentValue && currentValue.indexOf(removeValue) !== -1 ||\n          currentValue === removeValue\n      ) {\n        // When multiple (selected) options are destroyed at the same time, we don't want\n        // to run a model update for each of them. Instead, run a single update in the $$postDigest\n        scheduleViewValueUpdate(true);\n      }\n    });\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name select\n * @restrict E\n *\n * @description\n * HTML `select` element with AngularJS data-binding.\n *\n * The `select` directive is used together with {@link ngModel `ngModel`} to provide data-binding\n * between the scope and the `<select>` control (including setting default values).\n * It also handles dynamic `<option>` elements, which can be added using the {@link ngRepeat `ngRepeat}` or\n * {@link ngOptions `ngOptions`} directives.\n *\n * When an item in the `<select>` menu is selected, the value of the selected option will be bound\n * to the model identified by the `ngModel` directive. With static or repeated options, this is\n * the content of the `value` attribute or the textContent of the `<option>`, if the value attribute is missing.\n * Value and textContent can be interpolated.\n *\n * The {@link select.SelectController select controller} exposes utility functions that can be used\n * to manipulate the select's behavior.\n *\n * ## Matching model and option values\n *\n * In general, the match between the model and an option is evaluated by strictly comparing the model\n * value against the value of the available options.\n *\n * If you are setting the option value with the option's `value` attribute, or textContent, the\n * value will always be a `string` which means that the model value must also be a string.\n * Otherwise the `select` directive cannot match them correctly.\n *\n * To bind the model to a non-string value, you can use one of the following strategies:\n * - the {@link ng.ngOptions `ngOptions`} directive\n *   ({@link ng.select#using-select-with-ngoptions-and-setting-a-default-value})\n * - the {@link ng.ngValue `ngValue`} directive, which allows arbitrary expressions to be\n *   option values ({@link ng.select#using-ngvalue-to-bind-the-model-to-an-array-of-objects Example})\n * - model $parsers / $formatters to convert the string value\n *   ({@link ng.select#binding-select-to-a-non-string-value-via-ngmodel-parsing-formatting Example})\n *\n * If the viewValue of `ngModel` does not match any of the options, then the control\n * will automatically add an \"unknown\" option, which it then removes when the mismatch is resolved.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Choosing between `ngRepeat` and `ngOptions`\n *\n * In many cases, `ngRepeat` can be used on `<option>` elements instead of {@link ng.directive:ngOptions\n * ngOptions} to achieve a similar result. However, `ngOptions` provides some benefits:\n * - more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression\n * - reduced memory consumption by not creating a new scope for each repeated instance\n * - increased render speed by creating the options in a documentFragment instead of individually\n *\n * Specifically, select with repeated options slows down significantly starting at 2000 options in\n * Chrome and Internet Explorer / Edge.\n *\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} multiple Allows multiple options to be selected. The selected values will be\n *     bound to the model as an array.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds required attribute and required validation constraint to\n * the element when the ngRequired expression evaluates to true. Use ngRequired instead of required\n * when you want to data-bind to the required attribute.\n * @param {string=} ngChange AngularJS expression to be executed when selected option(s) changes due to user\n *    interaction with the select element.\n * @param {string=} ngOptions sets the options that the select is populated with and defines what is\n * set on the model on selection. See {@link ngOptions `ngOptions`}.\n * @param {string=} ngAttrSize sets the size of the select element dynamically. Uses the\n * {@link guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes ngAttr} directive.\n *\n *\n * @example\n * ### Simple `select` elements with static options\n *\n * <example name=\"static-select\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"singleSelect\"> Single select: </label><br>\n *     <select name=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *\n *     <label for=\"singleSelect\"> Single select with \"not selected\" option and dynamic option values: </label><br>\n *     <select name=\"singleSelect\" id=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"\">---Please select---</option> <!-- not selected / blank option -->\n *       <option value=\"{{data.option1}}\">Option 1</option> <!-- interpolation -->\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *     <tt>singleSelect = {{data.singleSelect}}</tt>\n *\n *     <hr>\n *     <label for=\"multipleSelect\"> Multiple select: </label><br>\n *     <select name=\"multipleSelect\" id=\"multipleSelect\" ng-model=\"data.multipleSelect\" multiple>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *       <option value=\"option-3\">Option 3</option>\n *     </select><br>\n *     <tt>multipleSelect = {{data.multipleSelect}}</tt><br/>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       singleSelect: null,\n *       multipleSelect: [],\n *       option1: 'option-1'\n *      };\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.data.singleSelect = 'nonsense';\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `ngRepeat` to generate `select` options\n * <example name=\"select-ngrepeat\" module=\"ngrepeatSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"repeatSelect\"> Repeat select: </label>\n *     <select name=\"repeatSelect\" id=\"repeatSelect\" ng-model=\"data.model\">\n *       <option ng-repeat=\"option in data.availableOptions\" value=\"{{option.id}}\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <tt>model = {{data.model}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngrepeatSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       model: null,\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ]\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `ngValue` to bind the model to an array of objects\n * <example name=\"select-ngvalue\" module=\"ngvalueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"ngvalueselect\"> ngvalue select: </label>\n *     <select size=\"6\" name=\"ngvalueselect\" ng-model=\"data.model\" multiple>\n *       <option ng-repeat=\"option in data.availableOptions\" ng-value=\"option.value\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <pre>model = {{data.model | json}}</pre><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngvalueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       model: null,\n *       availableOptions: [\n           {value: 'myString', name: 'string'},\n           {value: 1, name: 'integer'},\n           {value: true, name: 'boolean'},\n           {value: null, name: 'null'},\n           {value: {prop: 'value'}, name: 'object'},\n           {value: ['a'], name: 'array'}\n *       ]\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `select` with `ngOptions` and setting a default value\n * See the {@link ngOptions ngOptions documentation} for more `ngOptions` usage examples.\n *\n * <example name=\"select-with-default-values\" module=\"defaultValueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"mySelect\">Make a choice:</label>\n *     <select name=\"mySelect\" id=\"mySelect\"\n *       ng-options=\"option.name for option in data.availableOptions track by option.id\"\n *       ng-model=\"data.selectedOption\"></select>\n *   </form>\n *   <hr>\n *   <tt>option = {{data.selectedOption}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('defaultValueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ],\n *       selectedOption: {id: '3', name: 'Option C'} //This sets the default value of the select in the ui\n *       };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Binding `select` to a non-string value via `ngModel` parsing / formatting\n *\n * <example name=\"select-with-non-string-options\" module=\"nonStringSelect\">\n *   <file name=\"index.html\">\n *     <select ng-model=\"model.id\" convert-to-number>\n *       <option value=\"0\">Zero</option>\n *       <option value=\"1\">One</option>\n *       <option value=\"2\">Two</option>\n *     </select>\n *     {{ model }}\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('nonStringSelect', [])\n *       .run(function($rootScope) {\n *         $rootScope.model = { id: 2 };\n *       })\n *       .directive('convertToNumber', function() {\n *         return {\n *           require: 'ngModel',\n *           link: function(scope, element, attrs, ngModel) {\n *             ngModel.$parsers.push(function(val) {\n *               return parseInt(val, 10);\n *             });\n *             ngModel.$formatters.push(function(val) {\n *               return '' + val;\n *             });\n *           }\n *         };\n *       });\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should initialize to model', function() {\n *       expect(element(by.model('model.id')).$('option:checked').getText()).toEqual('Two');\n *     });\n *   </file>\n * </example>\n *\n */\nvar selectDirective = function() {\n\n  return {\n    restrict: 'E',\n    require: ['select', '?ngModel'],\n    controller: SelectController,\n    priority: 1,\n    link: {\n      pre: selectPreLink,\n      post: selectPostLink\n    }\n  };\n\n  function selectPreLink(scope, element, attr, ctrls) {\n\n      var selectCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1];\n\n      // if ngModel is not defined, we don't need to do anything but set the registerOption\n      // function to noop, so options don't get added internally\n      if (!ngModelCtrl) {\n        selectCtrl.registerOption = noop;\n        return;\n      }\n\n\n      selectCtrl.ngModelCtrl = ngModelCtrl;\n\n      // When the selected item(s) changes we delegate getting the value of the select control\n      // to the `readValue` method, which can be changed if the select can have multiple\n      // selected values or if the options are being generated by `ngOptions`\n      element.on('change', function() {\n        selectCtrl.removeUnknownOption();\n        scope.$apply(function() {\n          ngModelCtrl.$setViewValue(selectCtrl.readValue());\n        });\n      });\n\n      // If the select allows multiple values then we need to modify how we read and write\n      // values from and to the control; also what it means for the value to be empty and\n      // we have to add an extra watch since ngModel doesn't work well with arrays - it\n      // doesn't trigger rendering if only an item in the array changes.\n      if (attr.multiple) {\n        selectCtrl.multiple = true;\n\n        // Read value now needs to check each option to see if it is selected\n        selectCtrl.readValue = function readMultipleValue() {\n          var array = [];\n          forEach(element.find('option'), function(option) {\n            if (option.selected && !option.disabled) {\n              var val = option.value;\n              array.push(val in selectCtrl.selectValueMap ? selectCtrl.selectValueMap[val] : val);\n            }\n          });\n          return array;\n        };\n\n        // Write value now needs to set the selected property of each matching option\n        selectCtrl.writeValue = function writeMultipleValue(value) {\n          forEach(element.find('option'), function(option) {\n            var shouldBeSelected = !!value && (includes(value, option.value) ||\n                                               includes(value, selectCtrl.selectValueMap[option.value]));\n            var currentlySelected = option.selected;\n\n            // Support: IE 9-11 only, Edge 12-15+\n            // In IE and Edge adding options to the selection via shift+click/UP/DOWN\n            // will de-select already selected options if \"selected\" on those options was set\n            // more than once (i.e. when the options were already selected)\n            // So we only modify the selected property if necessary.\n            // Note: this behavior cannot be replicated via unit tests because it only shows in the\n            // actual user interface.\n            if (shouldBeSelected !== currentlySelected) {\n              setOptionSelectedStatus(jqLite(option), shouldBeSelected);\n            }\n\n          });\n        };\n\n        // we have to do it on each watch since ngModel watches reference, but\n        // we need to work of an array, so we need to see if anything was inserted/removed\n        var lastView, lastViewRef = NaN;\n        scope.$watch(function selectMultipleWatch() {\n          if (lastViewRef === ngModelCtrl.$viewValue && !equals(lastView, ngModelCtrl.$viewValue)) {\n            lastView = shallowCopy(ngModelCtrl.$viewValue);\n            ngModelCtrl.$render();\n          }\n          lastViewRef = ngModelCtrl.$viewValue;\n        });\n\n        // If we are a multiple select then value is now a collection\n        // so the meaning of $isEmpty changes\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n\n      }\n    }\n\n    function selectPostLink(scope, element, attrs, ctrls) {\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n\n      // We delegate rendering to the `writeValue` method, which can be changed\n      // if the select can have multiple selected values or if the options are being\n      // generated by `ngOptions`.\n      // This must be done in the postLink fn to prevent $render to be called before\n      // all nodes have been linked correctly.\n      ngModelCtrl.$render = function() {\n        selectCtrl.writeValue(ngModelCtrl.$viewValue);\n      };\n    }\n};\n\n\n// The option directive is purely designed to communicate the existence (or lack of)\n// of dynamically created (and destroyed) option elements to their containing select\n// directive via its controller.\nvar optionDirective = ['$interpolate', function($interpolate) {\n  return {\n    restrict: 'E',\n    priority: 100,\n    compile: function(element, attr) {\n      var interpolateValueFn, interpolateTextFn;\n\n      if (isDefined(attr.ngValue)) {\n        // Will be handled by registerOption\n      } else if (isDefined(attr.value)) {\n        // If the value attribute is defined, check if it contains an interpolation\n        interpolateValueFn = $interpolate(attr.value, true);\n      } else {\n        // If the value attribute is not defined then we fall back to the\n        // text content of the option element, which may be interpolated\n        interpolateTextFn = $interpolate(element.text(), true);\n        if (!interpolateTextFn) {\n          attr.$set('value', element.text());\n        }\n      }\n\n      return function(scope, element, attr) {\n        // This is an optimization over using ^^ since we don't want to have to search\n        // all the way to the root of the DOM for every single option element\n        var selectCtrlName = '$selectController',\n            parent = element.parent(),\n            selectCtrl = parent.data(selectCtrlName) ||\n              parent.parent().data(selectCtrlName); // in case we are in optgroup\n\n        if (selectCtrl) {\n          selectCtrl.registerOption(scope, element, attr, interpolateValueFn, interpolateTextFn);\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRequired\n * @restrict A\n *\n * @param {expression} ngRequired AngularJS expression. If it evaluates to `true`, it sets the\n *                                `required` attribute to the element and adds the `required`\n *                                {@link ngModel.NgModelController#$validators `validator`}.\n *\n * @description\n *\n * ngRequired adds the required {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for {@link input `input`} and {@link select `select`} controls, but can also be\n * applied to custom controls.\n *\n * The directive sets the `required` attribute on the element if the AngularJS expression inside\n * `ngRequired` evaluates to true. A special directive for setting `required` is necessary because we\n * cannot use interpolation inside `required`. See the {@link guide/interpolation interpolation guide}\n * for more info.\n *\n * The validator will set the `required` error key to true if the `required` attribute is set and\n * calling {@link ngModel.NgModelController#$isEmpty `NgModelController.$isEmpty`} with the\n * {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`} returns `true`. For example, the\n * `$isEmpty()` implementation for `input[text]` checks the length of the `$viewValue`. When developing\n * custom controls, `$isEmpty()` can be overwritten to account for a $viewValue that is not string-based.\n *\n * @example\n * <example name=\"ngRequiredDirective\" module=\"ngRequiredExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngRequiredExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.required = true;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"required\">Toggle required: </label>\n *         <input type=\"checkbox\" ng-model=\"required\" id=\"required\" />\n *         <br>\n *         <label for=\"input\">This input must be filled if `required` is true: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-required=\"required\" /><br>\n *         <hr>\n *         required error set? = <code>{{form.input.$error.required}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var required = element(by.binding('form.input.$error.required'));\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should set the required error', function() {\n         expect(required.getText()).toContain('true');\n\n         input.sendKeys('123');\n         expect(required.getText()).not.toContain('true');\n         expect(model.getText()).toContain('123');\n       });\n *   </file>\n * </example>\n */\nvar requiredDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n      // For boolean attributes like required, presence means true\n      var value = attr.hasOwnProperty('required') || $parse(attr.ngRequired)(scope);\n\n      if (!attr.ngRequired) {\n        // force truthy in case we are on non input element\n        // (input elements do this automatically for boolean attributes like required)\n        attr.required = true;\n      }\n\n      ctrl.$validators.required = function(modelValue, viewValue) {\n        return !value || !ctrl.$isEmpty(viewValue);\n      };\n\n      attr.$observe('required', function(newVal) {\n\n        if (value !== newVal) {\n          value = newVal;\n          ctrl.$validate();\n        }\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngPattern\n * @restrict A\n *\n * @param {expression|RegExp} ngPattern AngularJS expression that must evaluate to a `RegExp` or a `String`\n *                                      parsable into a `RegExp`, or a `RegExp` literal. See above for\n *                                      more details.\n *\n * @description\n *\n * ngPattern adds the pattern {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `pattern` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * does not match a RegExp which is obtained from the `ngPattern` attribute value:\n * - the value is an AngularJS expression:\n *   - If the expression evaluates to a RegExp object, then this is used directly.\n *   - If the expression evaluates to a string, then it will be converted to a RegExp after wrapping it\n *     in `^` and `$` characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n * - If the value is a RegExp literal, e.g. `ngPattern=\"/^\\d+$/\"`, it is used directly.\n *\n * <div class=\"alert alert-info\">\n * **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n * start at the index of the last search's match, thus not taking the whole input value into\n * account.\n * </div>\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `pattern` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngPattern` does not set the `pattern` attribute and therefore HTML5 constraint validation is\n *     not available.\n *   </li>\n *   <li>\n *     The `ngPattern` attribute must be an expression, while the `pattern` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngPatternDirective\" module=\"ngPatternExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngPatternExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.regex = '\\\\d+';\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"regex\">Set a pattern (regex string): </label>\n *         <input type=\"text\" ng-model=\"regex\" id=\"regex\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current pattern: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-pattern=\"regex\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default pattern', function() {\n         input.sendKeys('aaa');\n         expect(model.getText()).not.toContain('aaa');\n\n         input.clear().then(function() {\n           input.sendKeys('123');\n           expect(model.getText()).toContain('123');\n         });\n       });\n *   </file>\n * </example>\n */\nvar patternDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    compile: function(tElm, tAttr) {\n      var patternExp;\n      var parseFn;\n\n      if (tAttr.ngPattern) {\n        patternExp = tAttr.ngPattern;\n\n        // ngPattern might be a scope expression, or an inlined regex, which is not parsable.\n        // We get value of the attribute here, so we can compare the old and the new value\n        // in the observer to avoid unnecessary validations\n        if (tAttr.ngPattern.charAt(0) === '/' && REGEX_STRING_REGEXP.test(tAttr.ngPattern)) {\n          parseFn = function() { return tAttr.ngPattern; };\n        } else {\n          parseFn = $parse(tAttr.ngPattern);\n        }\n      }\n\n      return function(scope, elm, attr, ctrl) {\n        if (!ctrl) return;\n\n        var attrVal = attr.pattern;\n\n        if (attr.ngPattern) {\n          attrVal = parseFn(scope);\n        } else {\n          patternExp = attr.pattern;\n        }\n\n        var regexp = parsePatternAttr(attrVal, patternExp, elm);\n\n        attr.$observe('pattern', function(newVal) {\n          var oldRegexp = regexp;\n\n          regexp = parsePatternAttr(newVal, patternExp, elm);\n\n          if ((oldRegexp && oldRegexp.toString()) !== (regexp && regexp.toString())) {\n            ctrl.$validate();\n          }\n        });\n\n        ctrl.$validators.pattern = function(modelValue, viewValue) {\n          // HTML5 pattern constraint validates the input value, so we validate the viewValue\n          return ctrl.$isEmpty(viewValue) || isUndefined(regexp) || regexp.test(viewValue);\n        };\n      };\n    }\n\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngMaxlength\n * @restrict A\n *\n * @param {expression} ngMaxlength AngularJS expression that must evaluate to a `Number` or `String`\n *                                 parsable into a `Number`. Used as value for the `maxlength`\n *                                 {@link ngModel.NgModelController#$validators validator}.\n *\n * @description\n *\n * ngMaxlength adds the maxlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `maxlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is longer than the integer obtained by evaluating the AngularJS expression given in the\n * `ngMaxlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `maxlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMaxlength` does not set the `maxlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMaxlength` attribute must be an expression, while the `maxlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMaxlengthDirective\" module=\"ngMaxlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMaxlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.maxlength = 5;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"maxlength\">Set a maxlength: </label>\n *         <input type=\"number\" ng-model=\"maxlength\" id=\"maxlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current maxlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-maxlength=\"maxlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default maxlength', function() {\n         input.sendKeys('abcdef');\n         expect(model.getText()).not.toContain('abcdef');\n\n         input.clear().then(function() {\n           input.sendKeys('abcde');\n           expect(model.getText()).toContain('abcde');\n         });\n       });\n *   </file>\n * </example>\n */\nvar maxlengthDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var maxlength = attr.maxlength || $parse(attr.ngMaxlength)(scope);\n      var maxlengthParsed = parseLength(maxlength);\n\n      attr.$observe('maxlength', function(value) {\n        if (maxlength !== value) {\n          maxlengthParsed = parseLength(value);\n          maxlength = value;\n          ctrl.$validate();\n        }\n      });\n      ctrl.$validators.maxlength = function(modelValue, viewValue) {\n        return (maxlengthParsed < 0) || ctrl.$isEmpty(viewValue) || (viewValue.length <= maxlengthParsed);\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngMinlength\n * @restrict A\n *\n * @param {expression} ngMinlength AngularJS expression that must evaluate to a `Number` or `String`\n *                                 parsable into a `Number`. Used as value for the `minlength`\n *                                 {@link ngModel.NgModelController#$validators validator}.\n *\n * @description\n *\n * ngMinlength adds the minlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `minlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is shorter than the integer obtained by evaluating the AngularJS expression given in the\n * `ngMinlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `minlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMinlength` does not set the `minlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMinlength` value must be an expression, while the `minlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMinlengthDirective\" module=\"ngMinlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMinlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.minlength = 3;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"minlength\">Set a minlength: </label>\n *         <input type=\"number\" ng-model=\"minlength\" id=\"minlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current minlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-minlength=\"minlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default minlength', function() {\n         input.sendKeys('ab');\n         expect(model.getText()).not.toContain('ab');\n\n         input.sendKeys('abc');\n         expect(model.getText()).toContain('abc');\n       });\n *   </file>\n * </example>\n */\nvar minlengthDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var minlength = attr.minlength || $parse(attr.ngMinlength)(scope);\n      var minlengthParsed = parseLength(minlength) || -1;\n\n      attr.$observe('minlength', function(value) {\n        if (minlength !== value) {\n          minlengthParsed = parseLength(value) || -1;\n          minlength = value;\n          ctrl.$validate();\n        }\n\n      });\n      ctrl.$validators.minlength = function(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || viewValue.length >= minlengthParsed;\n      };\n    }\n  };\n}];\n\n\nfunction parsePatternAttr(regex, patternExp, elm) {\n  if (!regex) return undefined;\n\n  if (isString(regex)) {\n    regex = new RegExp('^' + regex + '$');\n  }\n\n  if (!regex.test) {\n    throw minErr('ngPattern')('noregexp',\n      'Expected {0} to be a RegExp but was {1}. Element: {2}', patternExp,\n      regex, startingTag(elm));\n  }\n\n  return regex;\n}\n\nfunction parseLength(val) {\n  var intVal = toInt(val);\n  return isNumberNaN(intVal) ? -1 : intVal;\n}\n\nif (window.angular.bootstrap) {\n  // AngularJS is already loaded, so we can return here...\n  if (window.console) {\n    console.log('WARNING: Tried to load AngularJS more than once.');\n  }\n  return;\n}\n\n// try to bind to jquery now so that one can write jqLite(fn)\n// but we will rebind on bootstrap again.\nbindJQuery();\n\npublishExternalAPI(angular);\n\nangular.module(\"ngLocale\", [], [\"$provide\", function($provide) {\nvar PLURAL_CATEGORY = {ZERO: \"zero\", ONE: \"one\", TWO: \"two\", FEW: \"few\", MANY: \"many\", OTHER: \"other\"};\nfunction getDecimals(n) {\n  n = n + '';\n  var i = n.indexOf('.');\n  return (i == -1) ? 0 : n.length - i - 1;\n}\n\nfunction getVF(n, opt_precision) {\n  var v = opt_precision;\n\n  if (undefined === v) {\n    v = Math.min(getDecimals(n), 3);\n  }\n\n  var base = Math.pow(10, v);\n  var f = ((n * base) | 0) % base;\n  return {v: v, f: f};\n}\n\n$provide.value(\"$locale\", {\n  \"DATETIME_FORMATS\": {\n    \"AMPMS\": [\n      \"AM\",\n      \"PM\"\n    ],\n    \"DAY\": [\n      \"Sunday\",\n      \"Monday\",\n      \"Tuesday\",\n      \"Wednesday\",\n      \"Thursday\",\n      \"Friday\",\n      \"Saturday\"\n    ],\n    \"ERANAMES\": [\n      \"Before Christ\",\n      \"Anno Domini\"\n    ],\n    \"ERAS\": [\n      \"BC\",\n      \"AD\"\n    ],\n    \"FIRSTDAYOFWEEK\": 6,\n    \"MONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"SHORTDAY\": [\n      \"Sun\",\n      \"Mon\",\n      \"Tue\",\n      \"Wed\",\n      \"Thu\",\n      \"Fri\",\n      \"Sat\"\n    ],\n    \"SHORTMONTH\": [\n      \"Jan\",\n      \"Feb\",\n      \"Mar\",\n      \"Apr\",\n      \"May\",\n      \"Jun\",\n      \"Jul\",\n      \"Aug\",\n      \"Sep\",\n      \"Oct\",\n      \"Nov\",\n      \"Dec\"\n    ],\n    \"STANDALONEMONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"WEEKENDRANGE\": [\n      5,\n      6\n    ],\n    \"fullDate\": \"EEEE, MMMM d, y\",\n    \"longDate\": \"MMMM d, y\",\n    \"medium\": \"MMM d, y h:mm:ss a\",\n    \"mediumDate\": \"MMM d, y\",\n    \"mediumTime\": \"h:mm:ss a\",\n    \"short\": \"M/d/yy h:mm a\",\n    \"shortDate\": \"M/d/yy\",\n    \"shortTime\": \"h:mm a\"\n  },\n  \"NUMBER_FORMATS\": {\n    \"CURRENCY_SYM\": \"$\",\n    \"DECIMAL_SEP\": \".\",\n    \"GROUP_SEP\": \",\",\n    \"PATTERNS\": [\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 3,\n        \"minFrac\": 0,\n        \"minInt\": 1,\n        \"negPre\": \"-\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\",\n        \"posSuf\": \"\"\n      },\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 2,\n        \"minFrac\": 2,\n        \"minInt\": 1,\n        \"negPre\": \"-\\u00a4\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\\u00a4\",\n        \"posSuf\": \"\"\n      }\n    ]\n  },\n  \"id\": \"en-us\",\n  \"localeID\": \"en_US\",\n  \"pluralCat\": function(n, opt_precision) {  var i = n | 0;  var vf = getVF(n, opt_precision);  if (i == 1 && vf.v == 0) {    return PLURAL_CATEGORY.ONE;  }  return PLURAL_CATEGORY.OTHER;}\n});\n}]);\n\n  jqLite(function() {\n    angularInit(window.document, bootstrap);\n  });\n\n})(window);\n\n!window.angular.$$csp().noInlineStyle && window.angular.element(document.head).prepend('<style type=\"text/css\">@charset \"UTF-8\";[ng\\\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');"
  },
  {
    "path": "test/angular/jest-angular.js",
    "content": "// This setup is used to inject specific versions of angularjs to test against\n\n// Jest is configured to alias `import * as angular from 'angular'` to this file in jest.config.js.\n// This file then imports angularjs bundle via the 'jest-angular-import' module alias which maps to\n// a specific version of the angularjs bundle.\n// It then exports the window.angular for use in tests that import from 'angular'\n\nrequire('jest-angular-import');\nmodule.exports = window.angular;\n"
  },
  {
    "path": "test/angular/update_all.sh",
    "content": "#!/bin/bash\n\nfor NGVER in 1.* ; do\n  pushd $NGVER\n  for PKG in angular angular-animate angular-mocks ; do\n    curl -O -L https://unpkg.com/${PKG}@${NGVER}/$PKG.js\n  done\n  popd\ndone\n"
  },
  {
    "path": "test/jest.init.ts",
    "content": "const noop = () => {};\nObject.defineProperty(window, 'scrollTo', { value: noop, writable: true });\n\nimport 'angular';\nimport 'angular-mocks';\nimport 'angular-animate';\nimport './util/testUtilsNg1';\n\nrequire('../src/index');\n"
  },
  {
    "path": "test/ng1StateBuilderSpec.ts",
    "content": "import { StateBuilder, StateMatcher, ng1ViewsBuilder, extend } from '../src/index';\nimport { Resolvable } from '@uirouter/core';\ndeclare var inject;\n\ndescribe('Ng1 StateBuilder', function () {\n  const parent = { name: '' };\n  let builder,\n    matcher,\n    urlMatcherFactoryProvider: any = {\n      compile: function () {},\n      isMatcher: function () {},\n    };\n\n  beforeEach(function () {\n    matcher = new StateMatcher({});\n    builder = new StateBuilder(matcher, urlMatcherFactoryProvider);\n    builder.builder('views', ng1ViewsBuilder);\n  });\n\n  it('should use the state object to build a default view, when no `views` property is found', function () {\n    const config = { url: '/foo', templateUrl: '/foo.html', controller: 'FooController', parent: parent };\n    const built = builder.builder('views')(config);\n\n    expect(built.$default).not.toEqual(config);\n    expect(built.$default).toEqual(\n      expect.objectContaining({\n        templateUrl: '/foo.html',\n        controller: 'FooController',\n        resolveAs: '$resolve',\n      })\n    );\n  });\n\n  it('It should use the views object to build views, when defined', function () {\n    const config = { a: { foo: 'bar', controller: 'FooController' } };\n    const builtViews = builder.builder('views')({ parent: parent, views: config });\n    expect(builtViews.a.foo).toEqual(config.a.foo);\n    expect(builtViews.a.controller).toEqual(config.a.controller);\n  });\n\n  it('should not allow a view config with both component and template keys', inject(function ($injector) {\n    const config = {\n      name: 'foo',\n      url: '/foo',\n      template: '<h1>hey</h1>',\n      controller: 'FooController',\n      parent: parent,\n    };\n    expect(() => builder.builder('views')(config)).not.toThrow();\n    expect(() => builder.builder('views')(extend({ component: 'fooComponent' }, config))).toThrow();\n    expect(() => builder.builder('views')(extend({ componentProvider: () => 'fooComponent' }, config))).toThrow();\n    expect(() => builder.builder('views')(extend({ bindings: {} }, config))).toThrow();\n  }));\n\n  it('should replace a resolve: string value with a function that injects the service of the same name', inject(function (\n    $injector\n  ) {\n    const config = { resolve: { foo: 'bar' } };\n    expect(builder.builder('resolvables')).toBeDefined();\n    const built: Resolvable[] = builder.builder('resolvables')(config);\n    expect(built[0].deps).toEqual(['bar']);\n  }));\n});\n"
  },
  {
    "path": "test/resolveSpec.ts",
    "content": "import { IPromise } from 'angular';\nimport * as angular from 'angular';\nimport './util/testUtilsNg1';\n\ndeclare var inject;\nimport Spy = jasmine.Spy;\nimport { resolvedValue, resolvedError, caught, testablePromise } from './util/testUtilsNg1';\nimport { ResolveContext, StateObject, PathNode, omit, pick, inherit, forEach } from '@uirouter/core';\nimport { UIRouter, Resolvable, services, StateDeclaration } from '@uirouter/core';\nimport '../src/legacy/resolveService';\n\nconst module = angular['mock'].module;\n///////////////////////////////////////////////\n\nlet states,\n  statesTree,\n  statesMap: { [key: string]: StateObject } = {};\nlet emptyPath;\nlet vals, counts, expectCounts;\nlet asyncCount;\n\nfunction invokeLater(fn: Function, ctx: ResolveContext) {\n  return new Resolvable('', fn, services.$injector.annotate(fn)).get(ctx);\n}\n\nfunction getStates() {\n  return {\n    A: {\n      resolve: {\n        _A: function () {\n          return 'A';\n        },\n        _A2: function () {\n          return 'A2';\n        },\n      },\n      B: {\n        resolve: {\n          _B: function () {\n            return 'B';\n          },\n          _B2: function () {\n            return 'B2';\n          },\n        },\n        C: {\n          resolve: {\n            _C: function (_A, _B) {\n              return _A + _B + 'C';\n            },\n            _C2: function () {\n              return 'C2';\n            },\n          },\n          D: {\n            resolve: {\n              _D: function (_D2) {\n                return 'D1' + _D2;\n              },\n              _D2: function () {\n                return 'D2';\n              },\n            },\n          },\n        },\n      },\n      E: {\n        resolve: {\n          _E: function () {\n            return 'E';\n          },\n        },\n        F: {\n          resolve: {\n            _E: function () {\n              return '_E';\n            },\n            _F: function (_E) {\n              return _E + 'F';\n            },\n          },\n        },\n      },\n      G: {\n        resolve: {\n          _G: function () {\n            return 'G';\n          },\n        },\n        H: {\n          resolve: {\n            _G: function (_G) {\n              return _G + '_G';\n            },\n            _H: function (_G) {\n              return _G + 'H';\n            },\n          },\n        },\n      },\n      I: {\n        resolve: {\n          _I: function (_I) {\n            return 'I';\n          },\n        },\n      },\n    },\n    J: {\n      resolve: {\n        _J: function () {\n          counts['_J']++;\n          return 'J';\n        },\n        _J2: function (_J) {\n          counts['_J2']++;\n          return _J + 'J2';\n        },\n      },\n      K: {\n        resolve: {\n          _K: function (_J2) {\n            counts['_K']++;\n            return _J2 + 'K';\n          },\n        },\n        L: {\n          resolve: {\n            _L: function (_K) {\n              counts['_L']++;\n              return _K + 'L';\n            },\n          },\n          M: {\n            resolve: {\n              _M: function (_L) {\n                counts['_M']++;\n                return _L + 'M';\n              },\n            },\n          },\n        },\n      },\n    },\n    O: {\n      resolve: {\n        _O: function (_O2) {\n          return _O2 + 'O';\n        },\n        _O2: function (_O) {\n          return _O + 'O2';\n        },\n      },\n    },\n    P: {\n      resolve: {\n        $state: function ($state) {\n          return $state;\n        },\n      },\n      Q: {\n        resolve: {\n          _Q: function ($state) {\n            counts._Q++;\n            vals._Q = $state;\n            return 'foo';\n          },\n        },\n      },\n    },\n    PAnnotated: {\n      resolve: {\n        $state: [\n          '$state',\n          function ($state) {\n            return $state;\n          },\n        ],\n      },\n    },\n  };\n}\n\nbeforeEach(function () {\n  counts = { _J: 0, _J2: 0, _K: 0, _L: 0, _M: 0, _Q: 0 };\n  vals = { _Q: null };\n  expectCounts = angular.copy(counts);\n  states = getStates();\n\n  const stateProps = ['resolve', 'resolvePolicy'];\n  statesTree = loadStates({}, states, '');\n\n  function loadStates(parent, state, name) {\n    let thisState: any = pick(state, stateProps);\n    const substates: any = omit(state, stateProps);\n\n    thisState.template = thisState.template || 'empty';\n    thisState.name = name;\n    thisState.parent = parent.name;\n    thisState.params = {};\n    thisState.data = { children: [] };\n\n    angular.forEach(substates, function (value, key) {\n      thisState.data.children.push(loadStates(thisState, value, key));\n    });\n    thisState = StateObject.create(thisState);\n    statesMap[name] = thisState;\n    return thisState;\n  }\n});\n\nfunction makePath(names: string[]): PathNode[] {\n  return names.map((name) => new PathNode(statesMap[name]));\n}\n\nfunction isResolved(promise: IPromise<any>) {\n  return !!testablePromise(promise).$$resolved;\n}\n\ndescribe('Resolvables system:', function () {\n  beforeEach(inject(function ($transitions, $injector) {\n    emptyPath = [];\n    asyncCount = 0;\n  }));\n\n  describe('strictDi support', function () {\n    let originalStrictDi: boolean;\n    let supportsStrictDi = false;\n\n    beforeEach(inject(function ($injector) {\n      // not all angular versions support strictDi mode.\n      // here, we detect the feature\n      try {\n        $injector.annotate(() => {}, true);\n      } catch (e) {\n        supportsStrictDi = true;\n      }\n\n      if (supportsStrictDi) {\n        originalStrictDi = $injector.strictDi;\n        $injector.strictDi = true;\n      }\n    }));\n\n    afterEach(inject(function ($injector) {\n      if (supportsStrictDi) {\n        $injector.strictDi = originalStrictDi;\n      }\n    }));\n\n    it('should throw when creating a resolvable with an unannotated fn and strictDi mode on', inject(function (\n      $injector\n    ) {\n      if (supportsStrictDi) {\n        expect(() => {\n          makePath(['P']);\n        }).toThrowError(/strictdi/);\n      }\n    }));\n\n    it('should not throw when creating a resolvable with an annotated fn and strictDi mode on', inject(function (\n      $injector\n    ) {\n      if (supportsStrictDi) {\n        expect(() => {\n          makePath(['PAnnotated']);\n        }).not.toThrowError(/strictdi/);\n      }\n    }));\n  });\n});\n\ndescribe('$resolve', function () {\n  let $r, tick;\n\n  beforeEach(module('ui.router'));\n  beforeEach(\n    module(function ($provide, $exceptionHandlerProvider) {\n      $exceptionHandlerProvider.mode('log'); // Don't rethrow from a promise\n      $provide.factory('Foo', function () {\n        return 'Working';\n      });\n    })\n  );\n\n  beforeEach(inject(function ($resolve, $q) {\n    $r = $resolve;\n    tick = $q.flush;\n  }));\n\n  describe('.resolve()', function () {\n    it('calls injectable functions and returns a promise', function () {\n      const fun: Spy = jasmine.createSpy('fun');\n      fun.and.returnValue(42);\n      const r = $r.resolve({ fun: ['$resolve', fun] });\n      expect(isResolved(r)).toBe(false);\n      tick();\n      expect(resolvedValue(r)).toEqual({ fun: 42 });\n      expect(fun).toHaveBeenCalled();\n      expect(fun.calls.count()).toBe(1);\n      expect(fun.calls.mostRecent().args.length).toBe(1);\n      expect(fun.calls.mostRecent().args[0]).toBe($r);\n    });\n\n    it('resolves promises returned from the functions', inject(function ($q) {\n      const d = $q.defer();\n      const fun = jasmine.createSpy('fun').and.returnValue(d.promise);\n      const r = $r.resolve({ fun: ['$resolve', fun] });\n      tick();\n      expect(isResolved(r)).toBe(false);\n      d.resolve('async');\n      tick();\n      expect(resolvedValue(r)).toEqual({ fun: 'async' });\n    }));\n\n    it('resolves dependencies between functions', function () {\n      const a = jasmine.createSpy('a');\n      const b = jasmine.createSpy('b').and.returnValue('bb');\n      const r = $r.resolve({ a: ['b', a], b: [b] });\n      tick();\n      expect(a).toHaveBeenCalled();\n      expect(a.calls.mostRecent().args).toEqual(['bb']);\n      expect(b).toHaveBeenCalled();\n    });\n\n    it('resolves dependencies between functions that return promises', inject(function ($q) {\n      const ad = $q.defer(),\n        a = jasmine.createSpy('a');\n      a.and.returnValue(ad.promise);\n      const bd = $q.defer(),\n        b = jasmine.createSpy('b');\n      b.and.returnValue(bd.promise);\n      const cd = $q.defer(),\n        c = jasmine.createSpy('c');\n      c.and.returnValue(cd.promise);\n\n      const r = $r.resolve({ a: ['b', 'c', a], b: ['c', b], c: [c] });\n      tick();\n      expect(isResolved(r)).toBe(false);\n      expect(a).not.toHaveBeenCalled();\n      expect(b).not.toHaveBeenCalled();\n      expect(c).toHaveBeenCalled();\n      cd.resolve('cc');\n      tick();\n      expect(isResolved(r)).toBe(false);\n      expect(a).not.toHaveBeenCalled();\n      expect(b).toHaveBeenCalled();\n      expect(b.calls.mostRecent().args).toEqual(['cc']);\n      bd.resolve('bb');\n      tick();\n      expect(isResolved(r)).toBe(false);\n      expect(a).toHaveBeenCalled();\n      expect(a.calls.mostRecent().args).toEqual(['bb', 'cc']);\n      ad.resolve('aa');\n      tick();\n      expect(resolvedValue(r)).toEqual({ a: 'aa', b: 'bb', c: 'cc' });\n      expect(a.calls.count()).toBe(1);\n      expect(b.calls.count()).toBe(1);\n      expect(c.calls.count()).toBe(1);\n    }));\n\n    // TODO: Reimplement cycle detection\n    xit('refuses cyclic dependencies', function () {\n      const a = jasmine.createSpy('a');\n      const b = jasmine.createSpy('b');\n      expect(\n        caught(function () {\n          $r.resolve({ a: ['b', a], b: ['a', b] });\n        })\n      ).toMatch(/cyclic/i);\n      expect(a).not.toHaveBeenCalled();\n      expect(b).not.toHaveBeenCalled();\n    });\n\n    it('allows a function to depend on an injector value of the same name', function () {\n      const r = $r.resolve({\n        $resolve: function ($resolve) {\n          return $resolve === $r;\n        },\n      });\n      tick();\n      expect(resolvedValue(r)).toEqual({ $resolve: true });\n    });\n\n    it('allows locals to be passed that override the injector', function () {\n      const fun = jasmine.createSpy('fun');\n      $r.resolve({ fun: ['$resolve', fun] }, { $resolve: 42 });\n      tick();\n      expect(fun).toHaveBeenCalled();\n      expect(fun.calls.mostRecent().args[0]).toBe(42);\n    });\n\n    it('does not call injectables overridden by a local', function () {\n      const fun = jasmine.createSpy('fun').and.returnValue('function');\n      const r = $r.resolve({ fun: [fun] }, { fun: 'local' });\n      tick();\n      expect(fun).not.toHaveBeenCalled();\n      expect(resolvedValue(r)).toEqual({ fun: 'local' });\n    });\n\n    it('includes locals in the returned values', function () {\n      const locals = { foo: 'hi', bar: 'mom' };\n      const r = $r.resolve({}, locals);\n      tick();\n      expect(resolvedValue(r)).toEqual(locals);\n    });\n\n    it('allows inheritance from a parent resolve()', function () {\n      const r = $r.resolve({\n        fun: function () {\n          return true;\n        },\n      });\n      const s = $r.resolve(\n        {\n          games: function () {\n            return true;\n          },\n        },\n        {},\n        r\n      );\n      tick();\n      expect(isResolved(r)).toBe(true);\n      expect(resolvedValue(s)).toEqual({ fun: true, games: true });\n    });\n\n    it('resolves dependencies from a parent resolve()', function () {\n      const r = $r.resolve({\n        a: [\n          function () {\n            return 'aa';\n          },\n        ],\n      });\n      const b = jasmine.createSpy('b');\n      const s = $r.resolve({ b: ['a', b] }, {}, r);\n      tick();\n      expect(b).toHaveBeenCalled();\n      expect(b.calls.mostRecent().args).toEqual(['aa']);\n    });\n\n    it('allow access to ancestor resolves in descendent resolve blocks', inject(function ($q) {\n      const gPromise = $q.defer(),\n        gInjectable = jasmine.createSpy('gInjectable').and.returnValue(gPromise.promise),\n        pPromise = $q.defer(),\n        pInjectable = jasmine.createSpy('pInjectable').and.returnValue(pPromise.promise);\n\n      const g = $r.resolve({ gP: [gInjectable] });\n\n      gPromise.resolve('grandparent');\n      tick();\n\n      const s = jasmine.createSpy('s');\n      const p = $r.resolve({ p: [pInjectable] }, {}, g);\n      const c = $r.resolve({ c: ['p', 'gP', s] }, {}, p);\n\n      pPromise.resolve('parent');\n      tick();\n\n      expect(s).toHaveBeenCalled();\n      expect(s.calls.mostRecent().args).toEqual(['parent', 'grandparent']);\n    }));\n\n    // test for #1353\n    it('allow parent resolve to override grandparent resolve', inject(function ($q) {\n      const gPromise = $q.defer(),\n        gInjectable = jasmine.createSpy('gInjectable').and.returnValue(gPromise.promise);\n\n      const g = $r.resolve({\n        item: [\n          function () {\n            return 'grandparent';\n          },\n        ],\n      });\n      gPromise.resolve('grandparent');\n      tick();\n\n      const p = $r.resolve(\n        {\n          item: [\n            function () {\n              return 'parent';\n            },\n          ],\n        },\n        {},\n        g\n      );\n      const s = jasmine.createSpy('s');\n      const c = $r.resolve({ c: [s] }, {}, p);\n      let item;\n      c.then(function (vals) {\n        item = vals.item;\n      });\n      tick();\n\n      expect(s).toHaveBeenCalled();\n      expect(item).toBe('parent');\n    }));\n\n    it('allows a function to override a parent value of the same name', function () {\n      const r = $r.resolve({\n        b: function () {\n          return 'B';\n        },\n      });\n      const s = $r.resolve(\n        {\n          a: function (b) {\n            return 'a:' + b;\n          },\n          b: function (b) {\n            return '(' + b + ')';\n          },\n          c: function (b) {\n            return 'c:' + b;\n          },\n        },\n        {},\n        r\n      );\n      tick();\n      expect(resolvedValue(s)).toEqual({ a: 'a:(B)', b: '(B)', c: 'c:(B)' });\n    });\n\n    it('allows a function to override a parent value of the same name with a promise', inject(function ($q) {\n      const r = $r.resolve({\n        b: function () {\n          return 'B';\n        },\n      });\n      let superb,\n        bd = $q.defer();\n      const s = $r.resolve(\n        {\n          a: function (b) {\n            return 'a:' + b;\n          },\n          b: function (b) {\n            superb = b;\n            return bd.promise;\n          },\n          c: function (b) {\n            return 'c:' + b;\n          },\n        },\n        {},\n        r\n      );\n      tick();\n      bd.resolve('(' + superb + ')');\n      tick();\n      expect(resolvedValue(s)).toEqual({ a: 'a:(B)', b: '(B)', c: 'c:(B)' });\n    }));\n\n    it('it only resolves after the parent resolves', inject(function ($q) {\n      const bd = $q.defer(),\n        b = jasmine.createSpy('b').and.returnValue(bd.promise);\n      const cd = $q.defer(),\n        c = jasmine.createSpy('c').and.returnValue(cd.promise);\n      const r = $r.resolve({ c: [c] });\n      const s = $r.resolve({ b: [b] }, {}, r);\n      bd.resolve('bbb');\n      tick();\n      expect(isResolved(r)).toBe(false);\n      expect(isResolved(s)).toBe(false);\n      cd.resolve('ccc');\n      tick();\n      expect(resolvedValue(r)).toEqual({ c: 'ccc' });\n      expect(resolvedValue(s)).toEqual({ b: 'bbb', c: 'ccc' });\n    }));\n\n    it('rejects missing dependencies but does not fail synchronously', function () {\n      const r = $r.resolve({ fun: function (invalid) {} });\n      expect(isResolved(r)).toBe(false);\n      tick();\n      expect(resolvedError(r).toString()).toMatch(/unknown provider/i);\n    });\n\n    it('propagates exceptions thrown by the functions as a rejection', function () {\n      const r = $r.resolve({\n        fun: function () {\n          throw 'i want cake';\n        },\n      });\n      expect(isResolved(r)).toBe(false);\n      tick();\n      expect(resolvedError(r)).toBe('i want cake');\n    });\n\n    it('propagates errors from a parent resolve', function () {\n      const error = ['the cake is a lie'];\n      const r = $r.resolve({\n        foo: function () {\n          throw error;\n        },\n      });\n      const s = $r.resolve(\n        {\n          bar: function () {\n            42;\n          },\n        },\n        r\n      );\n      tick();\n      expect(resolvedError(r)).toBe(error);\n      expect(resolvedError(s)).toBe(error);\n    });\n\n    it('does not invoke any functions if the parent resolve has already failed', function () {\n      const r = $r.resolve({\n        foo: function () {\n          throw 'oops';\n        },\n      });\n      tick();\n      expect(isResolved(r)).toBe(true);\n      const a = jasmine.createSpy('a');\n      const s = $r.resolve({ a: [a] }, {}, r);\n      tick();\n      expect(resolvedError(s)).toBeDefined();\n      expect(a).not.toHaveBeenCalled();\n    });\n\n    // TODO: Resolvables don't do this; the $resolve service used to.  Possibly reimplement this short-circuit.\n    xit('does not invoke any more functions after a failure', inject(function ($q) {\n      const ad = $q.defer(),\n        a = jasmine.createSpy('a').and.returnValue(ad.promise);\n      const cd = $q.defer(),\n        c = jasmine.createSpy('c').and.returnValue(cd.promise);\n      const dd = $q.defer(),\n        d = jasmine.createSpy('d').and.returnValue(dd.promise);\n      const r = $r.resolve({ a: ['c', a], c: [c], d: [d] });\n      dd.reject('dontlikeit');\n      tick();\n      expect(resolvedError(r)).toBeDefined();\n      cd.resolve('ccc');\n      tick();\n      expect(a).not.toHaveBeenCalled();\n    }));\n\n    it('does not invoke any more functions after a parent failure', inject(function ($q) {\n      const ad = $q.defer(),\n        a = jasmine.createSpy('a').and.returnValue(ad.promise);\n      const cd = $q.defer(),\n        c = jasmine.createSpy('c').and.returnValue(cd.promise);\n      const dd = $q.defer(),\n        d = jasmine.createSpy('d').and.returnValue(dd.promise);\n      const r = $r.resolve({ c: [c], d: [d] });\n      const s = $r.resolve({ a: ['c', a] }, r);\n      dd.reject('dontlikeit');\n      tick();\n      expect(resolvedError(r)).toBeDefined();\n      expect(resolvedError(s)).toBeDefined();\n      cd.resolve('ccc');\n      tick();\n      expect(a).not.toHaveBeenCalled();\n    }));\n  });\n});\n\n// Integration tests\ndescribe('Integration: Resolvables system', () => {\n  beforeEach(\n    module(function () {\n      const app = angular.module('test', ['ui.router']);\n      if (angular.version.minor >= 5) {\n        app.component('nowait', {\n          bindings: { wait: '<', nowait: '<' },\n          template: '{{ $ctrl.wait }}-{{ $ctrl.data }}',\n          controller: function () {\n            this.$onInit = () => {\n              this.nowait.then((result) => (this.data = result));\n            };\n          },\n        });\n      }\n    })\n  );\n\n  beforeEach(\n    module(function ($stateProvider) {\n      const copy = {};\n      forEach(statesMap, (stateDef, name) => {\n        copy[name] = stateDef;\n      });\n\n      angular.forEach(copy, (stateDef: StateObject) => {\n        if (stateDef.name) $stateProvider.state(stateDef.self);\n      });\n    })\n  );\n\n  beforeEach(module('test'));\n\n  let router: UIRouter, $state, $rootScope, $transitions, $trace, $q;\n  beforeEach(inject((_$uiRouter_, _$state_, _$rootScope_, _$transitions_, _$trace_, _$q_) => {\n    router = _$uiRouter_;\n    $state = _$state_;\n    $rootScope = _$rootScope_;\n    $transitions = _$transitions_;\n    $trace = _$trace_;\n    $q = _$q_;\n  }));\n\n  it('should not re-resolve data, when redirecting to a child', () => {\n    $transitions.onStart({ to: 'J' }, ($transition$) => {\n      const ctx = new ResolveContext($transition$.treeChanges().to);\n      return invokeLater(function (_J) {}, ctx).then(function () {\n        expect(counts._J).toEqual(1);\n        return $state.target('K');\n      });\n    });\n    $state.go('J');\n    $rootScope.$digest();\n    expect($state.current.name).toBe('K');\n    expect(counts._J).toEqual(1);\n  });\n\n  // Test for https://github.com/angular-ui/ui-router/issues/3546\n  it('should not inject child data into parent', () => {\n    let injectedData;\n    router.stateRegistry.register({\n      name: 'foo',\n      resolve: {\n        myresolve: () => 'foodata',\n      },\n      onEnter: (myresolve) => (injectedData = myresolve),\n    });\n\n    router.stateRegistry.register({\n      name: 'foo.bar',\n      resolve: {\n        myresolve: () => 'bardata',\n      },\n    });\n\n    $state.go('foo.bar');\n    $rootScope.$digest();\n\n    expect($state.current.name).toBe('foo.bar');\n    expect(injectedData).toBe('foodata');\n  });\n\n  it('should inject a promise for NOWAIT resolve into a controller', inject(function ($compile, $rootScope) {\n    const scope = $rootScope.$new();\n    const el = $compile('<div><ui-view></ui-view></div>')(scope);\n\n    const deferWait = $q.defer();\n    const deferNowait = $q.defer();\n    let onEnterNowait;\n\n    router.stateProvider.state({\n      name: 'policies',\n      resolve: [\n        { token: 'nowait', resolveFn: () => deferNowait.promise, policy: { async: 'NOWAIT' } },\n        { token: 'wait', resolveFn: () => deferWait.promise },\n      ],\n      onEnter: function (nowait) {\n        onEnterNowait = nowait;\n      },\n      controller: function ($scope, wait, nowait) {\n        $scope.wait = wait;\n        nowait.then((result) => ($scope.nowait = result));\n      },\n      template: '{{ wait }}-{{ nowait }}',\n    });\n\n    $state.go('policies');\n    $q.flush();\n\n    expect($state.current.name).toBe('');\n\n    deferWait.resolve('wait for this');\n    $q.flush();\n\n    expect($state.current.name).toBe('policies');\n    expect(el.text()).toBe('wait for this-');\n    expect(typeof onEnterNowait.then).toBe('function');\n\n    deferNowait.resolve('dont wait for this');\n    $q.flush();\n\n    expect(el.text()).toBe('wait for this-dont wait for this');\n  }));\n\n  if (angular.version.minor >= 5) {\n    it('should bind a promise for NOWAIT resolve onto a component controller', inject(function ($compile, $rootScope) {\n      const scope = $rootScope.$new();\n      const el = $compile('<div><ui-view></ui-view></div>')(scope);\n\n      const deferWait = $q.defer();\n      const deferNowait = $q.defer();\n\n      router.stateProvider.state({\n        name: 'policies',\n        resolve: [\n          { token: 'nowait', resolveFn: () => deferNowait.promise, policy: { async: 'NOWAIT' } },\n          { token: 'wait', resolveFn: () => deferWait.promise },\n        ],\n        component: 'nowait',\n      });\n\n      $state.go('policies');\n      $q.flush();\n\n      expect($state.current.name).toBe('');\n\n      deferWait.resolve('wait for this');\n      $q.flush();\n\n      expect($state.current.name).toBe('policies');\n      expect(el.text()).toBe('wait for this-');\n\n      deferNowait.resolve('dont wait for this');\n      $q.flush();\n\n      expect(el.text()).toBe('wait for this-dont wait for this');\n    }));\n  }\n});\n"
  },
  {
    "path": "test/servicesSpec.ts",
    "content": "import * as angular from 'angular';\nimport { UIRouter, trace } from '@uirouter/core';\n\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\ndescribe('UI-Router services', () => {\n  let $uiRouterProvider: UIRouter, $uiRouter: UIRouter;\n  let providers;\n  let services;\n\n  beforeEach(\n    module('ui.router', function (\n      _$uiRouterProvider_,\n      $urlMatcherFactoryProvider,\n      $urlRouterProvider,\n      $stateRegistryProvider,\n      $uiRouterGlobalsProvider,\n      $transitionsProvider,\n      $stateProvider\n    ) {\n      $uiRouterProvider = _$uiRouterProvider_;\n\n      expect($uiRouterProvider['router']).toBe($uiRouterProvider);\n\n      providers = {\n        $uiRouterProvider,\n        $urlMatcherFactoryProvider,\n        $urlRouterProvider,\n        $stateRegistryProvider,\n        $uiRouterGlobalsProvider,\n        $transitionsProvider,\n        $stateProvider,\n      };\n    })\n  );\n\n  beforeEach(inject(function (\n    _$uiRouter_,\n    $urlMatcherFactory,\n    $urlRouter,\n    $stateRegistry,\n    $uiRouterGlobals,\n    $transitions,\n    $state,\n    $stateParams,\n    $templateFactory,\n    $view,\n    $trace\n  ) {\n    $uiRouter = _$uiRouter_;\n\n    services = {\n      $urlMatcherFactory,\n      $urlRouter,\n      $stateRegistry,\n      $uiRouterGlobals,\n      $transitions,\n      $state,\n      $stateParams,\n      $templateFactory,\n      $view,\n      $trace,\n    };\n  }));\n\n  it('Should expose ui-router providers from the UIRouter instance', () => {\n    expect(providers.$urlMatcherFactoryProvider).toBe($uiRouterProvider.urlMatcherFactory);\n    expect(providers.$urlRouterProvider).toBe($uiRouterProvider.urlRouterProvider);\n    expect(providers.$stateRegistryProvider).toBe($uiRouterProvider.stateRegistry);\n    expect(providers.$uiRouterGlobalsProvider).toBe($uiRouterProvider.globals);\n    expect(providers.$transitionsProvider).toBe($uiRouterProvider.transitionService);\n    expect(providers.$stateProvider).toBe($uiRouterProvider.stateProvider);\n  });\n\n  it('Should expose ui-router services from the UIRouter instance', () => {\n    expect($uiRouter).toBe($uiRouterProvider);\n    expect(services.$urlMatcherFactory).toBe($uiRouter.urlMatcherFactory);\n    expect(services.$urlRouter).toBe($uiRouter.urlRouter);\n    expect(services.$stateRegistry).toBe($uiRouter.stateRegistry);\n    expect(services.$uiRouterGlobals).toBe($uiRouter.globals);\n    expect(services.$transitions).toBe($uiRouter.transitionService);\n    expect(services.$state).toBe($uiRouter.stateService);\n    expect(services.$stateParams).toBe($uiRouter.globals.params);\n    expect(services.$templateFactory.constructor.name).toBe('TemplateFactory');\n    expect(services.$view).toBe($uiRouter.viewService);\n    expect(services.$trace).toBe(trace);\n  });\n});\n"
  },
  {
    "path": "test/stateDirectivesSpec.ts",
    "content": "import * as angular from 'angular';\nimport { obj } from './util/testUtilsNg1';\n\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\nlet timeoutFlush;\n\ndescribe('uiStateRef', function () {\n  let el, el2, template, scope, document, _locationProvider;\n\n  beforeEach(module('ui.router'));\n\n  beforeEach(\n    module(function ($stateProvider, $locationProvider) {\n      _locationProvider = $locationProvider;\n      $locationProvider.hashPrefix('');\n      $stateProvider\n        .state('top', {\n          url: '',\n        })\n        .state('other', {\n          url: '/other/:id',\n          template: 'other',\n        })\n        .state('other.detail', {\n          url: '/detail',\n          template: 'detail',\n        })\n        .state('contacts', {\n          url: '/contacts',\n          template: '<a ui-sref=\".item({ id: 5 })\" class=\"item\">Person</a> <ui-view></ui-view>',\n        })\n        .state('contacts.item', {\n          url: '/{id:int}',\n          template:\n            '<a ui-sref=\".detail\" class=\"item-detail\">Detail</a> | <a ui-sref=\"^\" class=\"item-parent\">Parent</a> | <ui-view></ui-view>',\n        })\n        .state('contacts.item.detail', {\n          template: '<div class=\"title\">Detail</div> | <a ui-sref=\"^\" class=\"item-parent2\">Item</a>',\n        });\n    })\n  );\n\n  beforeEach(inject(function ($document, $timeout) {\n    document = $document[0];\n    timeoutFlush = function () {\n      try {\n        $timeout.flush();\n      } catch (e) {\n        // Angular 1.0.8 throws 'No deferred tasks to be flushed' if there is nothing in queue.\n        // Behave as Angular >=1.1.5 and do nothing in such case.\n      }\n    };\n  }));\n\n  function triggerClick(el, options?) {\n    options = angular.extend(\n      {\n        metaKey: false,\n        ctrlKey: false,\n        shiftKey: false,\n        altKey: false,\n        button: 0,\n      },\n      options || {}\n    );\n\n    const e = document.createEvent('MouseEvents');\n    e.initMouseEvent(\n      'click', // typeArg of type DOMString, Specifies the event type.\n      true, // canBubbleArg of type boolean, Specifies whether or not the event can bubble.\n      true, // cancelableArg of type boolean, Specifies whether or not the event's default action can be prevented.\n      undefined, // viewArg of type views::AbstractView, Specifies the Event's AbstractView.\n      0, // detailArg of type long, Specifies the Event's mouse click count.\n      0, // screenXArg of type long, Specifies the Event's screen x coordinate\n      0, // screenYArg of type long, Specifies the Event's screen y coordinate\n      0, // clientXArg of type long, Specifies the Event's client x coordinate\n      0, // clientYArg of type long, Specifies the Event's client y coordinate\n      options.ctrlKey, // ctrlKeyArg of type boolean, Specifies whether or not control key was depressed during the Event.\n      options.altKey, // altKeyArg of type boolean, Specifies whether or not alt key was depressed during the Event.\n      options.shiftKey, // shiftKeyArg of type boolean, Specifies whether or not shift key was depressed during the Event.\n      options.metaKey, // metaKeyArg of type boolean, Specifies whether or not meta key was depressed during the Event.\n      options.button, // buttonArg of type unsigned short, Specifies the Event's mouse button.\n      null // relatedTargetArg of type EventTarget\n    );\n    el[0].dispatchEvent(e);\n  }\n\n  function triggerHTMLEvent(name) {\n    const event = document.createEvent('HTMLEvents');\n    event.initEvent(name, false, true);\n    el[0].dispatchEvent(event);\n  }\n\n  function triggerMouseEvent(name) {\n    const event = document.createEvent('MouseEvents');\n    event.initEvent(name, true, true);\n    el[0].dispatchEvent(event);\n  }\n\n  describe('links with promises', function () {\n    it('should update the href when promises on parameters change before scope is applied', inject(function (\n      $rootScope,\n      $compile,\n      $q\n    ) {\n      const defer = $q.defer();\n      el = angular.element('<a ui-sref=\"contacts.item.detail({ id: contact.id })\">Details</a>');\n\n      $rootScope.contact = defer.promise;\n      defer.resolve({ id: 6 });\n\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n\n      // HACK: Promises no longer auto-unwrap in 1.2.x+\n      if ($rootScope.contact.$$resolved && $rootScope.contact.$$resolved.value) {\n        $rootScope.contact = $rootScope.contact.$$resolved.value;\n        $rootScope.$digest();\n      }\n\n      expect(el.attr('href')).toBe('#/contacts/6');\n    }));\n  });\n\n  function buildDOM($rootScope, $compile, $timeout) {\n    el = angular.element('<a ui-sref=\"contacts.item.detail({ id: contact.id })\">Details</a>');\n    el2 = angular.element('<a ui-sref=\"top\">Top</a>');\n    scope = $rootScope;\n    scope.contact = { id: 5 };\n    scope.$apply();\n\n    $compile(el)(scope);\n    $compile(el2)(scope);\n    scope.$digest();\n  }\n\n  describe('links', function () {\n    beforeEach(inject(buildDOM));\n\n    it('should generate the correct href', function () {\n      expect(el.attr('href')).toBe('#/contacts/5');\n      expect(el2.attr('href')).toBe('#');\n    });\n\n    it('should update the href when parameters change', function () {\n      expect(el.attr('href')).toBe('#/contacts/5');\n      scope.contact.id = 6;\n      scope.$apply();\n      expect(el.attr('href')).toBe('#/contacts/6');\n    });\n\n    it('should allow multi-line attribute values', inject(function ($compile, $rootScope) {\n      el = angular.element('<a ui-sref=\"contacts.item.detail({\\n\\tid: $index\\n})\">Details</a>');\n      $rootScope.$index = 3;\n      $rootScope.$apply();\n\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n      expect(el.attr('href')).toBe('#/contacts/3');\n    }));\n\n    it('should transition states when left-clicked', inject(function ($state, $stateParams, $q) {\n      expect($state.$current.name).toEqual('top');\n\n      triggerClick(el);\n      timeoutFlush();\n      $q.flush();\n\n      expect($state.current.name).toEqual('contacts.item.detail');\n      expect(obj($stateParams)).toEqual({ id: 5 });\n    }));\n\n    if (/PhantomJS/.exec(navigator.userAgent)) {\n      it('should transition when given a click that contains no data (fake-click)', inject(function (\n        $state,\n        $stateParams,\n        $q\n      ) {\n        expect($state.current.name).toEqual('top');\n\n        triggerClick(el, {\n          metaKey: undefined,\n          ctrlKey: undefined,\n          shiftKey: undefined,\n          altKey: undefined,\n          button: undefined,\n        });\n        timeoutFlush();\n        $q.flush();\n\n        expect($state.current.name).toEqual('contacts.item.detail');\n        expect(obj($stateParams)).toEqual({ id: 5 });\n      }));\n\n      it('should not transition states when ctrl-clicked', inject(function ($state, $stateParams, $q) {\n        expect($state.$current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n\n        triggerClick(el, { ctrlKey: true });\n\n        timeoutFlush();\n        $q.flush();\n\n        expect($state.current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n      }));\n\n      it('should not transition states when meta-clicked', inject(function ($state, $stateParams, $q) {\n        expect($state.$current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n\n        triggerClick(el, { metaKey: true });\n        timeoutFlush();\n        $q.flush();\n\n        expect($state.current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n      }));\n\n      it('should not transition states when shift-clicked', inject(function ($state, $stateParams, $q) {\n        expect($state.$current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n\n        triggerClick(el, { shiftKey: true });\n        timeoutFlush();\n        $q.flush();\n\n        expect($state.current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n      }));\n\n      it('should not transition states when alt-clicked', inject(function ($state, $stateParams, $q) {\n        expect($state.$current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n\n        triggerClick(el, { altKey: true });\n        timeoutFlush();\n        $q.flush();\n\n        expect($state.current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n      }));\n\n      it('should not transition states when middle-clicked', inject(function ($state, $stateParams, $q) {\n        expect($state.$current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n\n        triggerClick(el, { button: 1 });\n        timeoutFlush();\n        $q.flush();\n\n        expect($state.current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n      }));\n\n      it('should not transition states when element has target specified', inject(function ($state, $stateParams, $q) {\n        el.attr('target', '_blank');\n        expect($state.$current.name).toEqual('top');\n\n        triggerClick(el);\n        timeoutFlush();\n        $q.flush();\n\n        expect($state.current.name).toEqual('top');\n        expect(obj($stateParams)).toEqual({});\n      }));\n    }\n\n    it('should not transition states if preventDefault() is called in click handler', inject(function (\n      $state,\n      $stateParams,\n      $q\n    ) {\n      expect($state.$current.name).toEqual('top');\n      expect(obj($stateParams)).toEqual({});\n\n      el.bind('click', function (e) {\n        e.preventDefault();\n      });\n\n      triggerClick(el);\n      timeoutFlush();\n      $q.flush();\n\n      expect($state.current.name).toEqual('top');\n      expect(obj($stateParams)).toEqual({});\n    }));\n\n    // Test for #1031\n    it('should allow passing params to current state', inject(function ($compile, $rootScope, $state, $q) {\n      $state.go('other', { id: 'abc' });\n      $rootScope.$index = 'def';\n      $rootScope.$digest();\n\n      el = angular.element('<a ui-sref=\"{id: $index}\">Details</a>');\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n\n      expect($state.current.name).toBe('other');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'abc' }));\n      expect(el.attr('href')).toBe('#/other/def');\n\n      triggerClick(el);\n      timeoutFlush();\n      $q.flush();\n\n      expect($state.current.name).toBe('other');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'def' }));\n\n      $rootScope.$index = 'ghi';\n      $state.go('other.detail');\n      $rootScope.$digest();\n\n      expect($state.current.name).toBe('other.detail');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'def' }));\n\n      expect(el.attr('href')).toBe('#/other/ghi/detail');\n\n      triggerClick(el);\n      timeoutFlush();\n      $q.flush();\n\n      expect($state.current.name).toBe('other.detail');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'ghi' }));\n    }));\n\n    it('should allow multi-line attribute values when passing params to current state', inject(function (\n      $compile,\n      $rootScope,\n      $state\n    ) {\n      $state.go('contacts.item.detail', { id: '123' });\n      $rootScope.$digest();\n\n      el = angular.element('<a ui-sref=\"{\\n\\tid: $index\\n}\">Details</a>');\n      $rootScope.$index = 3;\n      $rootScope.$apply();\n\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n      expect(el.attr('href')).toBe('#/contacts/3');\n    }));\n\n    it('should take an object as a parameter and update properly on digest churns', inject(function (\n      $rootScope,\n      $q,\n      $compile,\n      $state\n    ) {\n      el = angular.element('<div><a ui-sref=\"contacts.item.detail(urlParams)\">Contacts</a></div>');\n      template = $compile(el)($rootScope);\n\n      $rootScope.urlParams = { id: 1 };\n      $rootScope.$digest();\n      expect(angular.element(template[0].querySelector('a')).attr('href')).toBe('#/contacts/1');\n\n      $rootScope.urlParams.id = 2;\n      $rootScope.$digest();\n      expect(angular.element(template[0].querySelector('a')).attr('href')).toBe('#/contacts/2');\n    }));\n  });\n\n  describe('links in html5 mode', function () {\n    beforeEach(function () {\n      _locationProvider.html5Mode(true);\n    });\n\n    beforeEach(inject(buildDOM));\n\n    it('should generate the correct href', function () {\n      expect(el.attr('href')).toBe('/contacts/5');\n      expect(el2.attr('href')).toBe('');\n    });\n\n    it('should update the href when parameters change', function () {\n      expect(el.attr('href')).toBe('/contacts/5');\n      scope.contact.id = 6;\n      scope.$apply();\n      expect(el.attr('href')).toBe('/contacts/6');\n    });\n\n    it('should transition states when the url is empty', inject(function ($state, $stateParams, $q) {\n      // Odd, in html5Mode, the initial state isn't matching on empty url, but does match if top.url is \"/\".\n      //      expect($state.$current.name).toEqual('top');\n\n      triggerClick(el2);\n      timeoutFlush();\n      $q.flush();\n\n      expect($state.current.name).toEqual('top');\n      expect(obj($stateParams)).toEqual({});\n    }));\n  });\n\n  describe('links with dynamic state definitions', function () {\n    let template, $state;\n\n    beforeEach(inject(function ($rootScope, $compile, _$state_) {\n      $state = _$state_;\n      el = angular.element(\n        '<a ui-sref-active=\"active\" ui-sref-active-eq=\"activeeq\" ui-state=\"state\" ui-state-params=\"params\">state</a>'\n      );\n      scope = $rootScope;\n      angular.extend(scope, { state: 'contacts', params: {} });\n      template = $compile(el)(scope);\n      scope.$digest();\n    }));\n\n    it('sets the correct initial href', function () {\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts');\n    });\n\n    it('updates to the new href', function () {\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts');\n\n      scope.state = 'contacts.item';\n      scope.params = { id: 5 };\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts/5');\n\n      scope.params.id = 25;\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts/25');\n    });\n\n    it('updates a linked ui-sref-active', inject(function ($timeout) {\n      function tick() {\n        scope.$digest();\n        try {\n          $timeout.flush();\n        } catch (error) {}\n      }\n      expect(template[0].className).not.toContain('active');\n      expect(template[0].className).not.toContain('activeeq');\n\n      $state.go('contacts');\n      tick();\n      expect(template[0].className).toContain('active activeeq');\n\n      scope.state = 'contacts.item';\n      scope.params = { id: 5 };\n      tick();\n      expect(template[0].className).not.toContain('active');\n      expect(template[0].className).not.toContain('activeeq');\n\n      $state.go('contacts.item', { id: -5 });\n      tick();\n      expect(template[0].className).not.toContain('active');\n      expect(template[0].className).not.toContain('activeeq');\n\n      $state.go('contacts.item', { id: 5 });\n      tick();\n      expect(template[0].className).toContain('active activeeq');\n\n      scope.state = 'contacts';\n      scope.params = {};\n      tick();\n      expect(template[0].className).toContain('active');\n      expect(template[0].className).not.toContain('activeeq');\n    }));\n\n    it('updates to a new href when it points to a new state', function () {\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts');\n      scope.state = 'other';\n      scope.params = { id: '123' };\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/other/123');\n    });\n\n    // Test for #1031\n    it('should allow passing params to current state using empty ui-state', inject(function (\n      $compile,\n      $rootScope,\n      $state,\n      $q\n    ) {\n      $state.go('other', { id: 'abc' });\n      $rootScope.$index = 'def';\n      $rootScope.$digest();\n\n      el = angular.element('<a ui-state=\"\" ui-state-params=\"{id: $index}\">Details</a>');\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n\n      expect($state.current.name).toBe('other');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'abc' }));\n      expect(el.attr('href')).toBe('#/other/def');\n\n      triggerClick(el);\n      timeoutFlush();\n      $q.flush();\n\n      expect($state.current.name).toBe('other');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'def' }));\n\n      $rootScope.$index = 'ghi';\n      $state.go('other.detail');\n      $rootScope.$digest();\n\n      expect($state.current.name).toBe('other.detail');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'def' }));\n\n      expect(el.attr('href')).toBe('#/other/ghi/detail');\n\n      triggerClick(el);\n      timeoutFlush();\n      $q.flush();\n\n      expect($state.current.name).toBe('other.detail');\n      expect($state.params).toEqual(expect.objectContaining({ id: 'ghi' }));\n    }));\n\n    it('retains the old href if the new points to a non-state', function () {\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts');\n      scope.state = 'nostate';\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts');\n    });\n\n    it('accepts param overrides', inject(function ($compile) {\n      scope.state = 'contacts.item';\n      scope.params = { id: 10 };\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts/10');\n    }));\n\n    it('accepts param overrides', inject(function ($compile) {\n      scope.state = 'contacts.item';\n      scope.params = { id: 10 };\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts/10');\n\n      scope.params.id = 22;\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts/22');\n    }));\n\n    it('watches attributes', inject(function ($compile) {\n      el = angular.element('<a ui-state=\"{{exprvar}}\" ui-state-params=\"params\">state</a>');\n      template = $compile(el)(scope);\n\n      scope.exprvar = 'state1';\n      scope.state1 = 'contacts.item';\n      scope.state2 = 'other';\n      scope.params = { id: 10 };\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/contacts/10');\n\n      scope.exprvar = 'state2';\n      scope.$digest();\n      expect(angular.element(template[0]).attr('href')).toBe('#/other/10');\n    }));\n\n    if (angular.version.minor >= 3) {\n      it('allows one-time-binding on ng1.3+', inject(function ($compile) {\n        el = angular.element('<a ui-state=\"::state\" ui-state-params=\"::params\">state</a>');\n\n        scope.state = 'contacts.item';\n        scope.params = { id: 10 };\n        template = $compile(el)(scope);\n        scope.$digest();\n        expect(angular.element(template[0]).attr('href')).toBe('#/contacts/10');\n\n        scope.state = 'other';\n        scope.params = { id: 22 };\n\n        scope.$digest();\n        expect(angular.element(template[0]).attr('href')).toBe('#/contacts/10');\n      }));\n    }\n\n    it('accepts option overrides', inject(function ($compile, $timeout, $state) {\n      let transitionOptions;\n\n      el = angular.element('<a ui-state=\"state\" ui-state-opts=\"opts\">state</a>');\n      scope.state = 'contacts';\n      scope.opts = { reload: true };\n      template = $compile(el)(scope);\n      scope.$digest();\n\n      spyOn($state, 'go').and.callFake(function (state, params, options) {\n        transitionOptions = options;\n      });\n\n      triggerClick(template);\n      $timeout.flush();\n\n      expect(transitionOptions.reload).toEqual(true);\n      expect(transitionOptions.absolute).toBeUndefined();\n    }));\n\n    describe('option event', function () {\n      it('should bind click event by default', inject(function ($compile, $state, $timeout) {\n        expect($state.current.name).toBe('top');\n\n        el = angular.element('<a ui-state=\"state\"></a>');\n\n        scope.state = 'contacts';\n        $compile(el)(scope);\n        scope.$digest();\n\n        triggerClick(el);\n        $timeout.flush();\n\n        expect($state.current.name).toBe('contacts');\n      }));\n\n      it('should bind single HTML events', inject(function ($compile, $state, $timeout) {\n        expect($state.current.name).toEqual('top');\n\n        el = angular.element('<input type=\"text\" ui-state=\"state\" ui-state-opts=\"{ events: [\\'change\\'] }\">');\n\n        scope.state = 'contacts';\n        $compile(el)(scope);\n        scope.$digest();\n\n        triggerHTMLEvent('change');\n        $timeout.flush();\n\n        expect($state.current.name).toEqual('contacts');\n      }));\n\n      it('should bind multiple HTML events', inject(function ($compile, $state, $timeout) {\n        expect($state.current.name).toEqual('top');\n\n        el = angular.element('<input type=\"text\" ui-state=\"state\" ui-state-opts=\"{ events: [\\'change\\', \\'blur\\'] }\">');\n\n        scope.state = 'contacts';\n        $compile(el)(scope);\n        scope.$digest();\n\n        triggerHTMLEvent('change');\n        $timeout.flush();\n        expect($state.current.name).toEqual('contacts');\n\n        $state.go('top');\n        scope.$digest();\n\n        expect($state.current.name).toEqual('top');\n\n        triggerHTMLEvent('blur');\n        $timeout.flush();\n        expect($state.current.name).toEqual('contacts');\n      }));\n\n      it('should bind multiple Mouse events', inject(function ($compile, $state, $timeout) {\n        expect($state.current.name).toEqual('top');\n\n        el = angular.element('<a ui-state=\"state\" ui-state-opts=\"{ events: [\\'mouseover\\', \\'mousedown\\'] }\">');\n\n        scope.state = 'contacts';\n        $compile(el)(scope);\n        scope.$digest();\n\n        triggerMouseEvent('mouseover');\n        $timeout.flush();\n        expect($state.current.name).toEqual('contacts');\n\n        $state.go('top');\n        scope.$digest();\n\n        expect($state.current.name).toEqual('top');\n\n        triggerMouseEvent('mousedown');\n        $timeout.flush();\n        expect($state.current.name).toEqual('contacts');\n      }));\n    });\n  });\n\n  describe('forms', function () {\n    let el, scope;\n\n    beforeEach(inject(function ($rootScope, $compile) {\n      el = angular.element('<form ui-sref=\"contacts.item.detail({ id: contact.id })\"></form>');\n      scope = $rootScope;\n      scope.contact = { id: 5 };\n      scope.$apply();\n\n      $compile(el)(scope);\n      scope.$digest();\n    }));\n\n    it('should generate the correct action', function () {\n      expect(el.attr('action')).toBe('#/contacts/5');\n    });\n  });\n\n  describe('relative transitions', function () {\n    beforeEach(inject(function ($rootScope, $compile, $state) {\n      $state.transitionTo('contacts.item', { id: 5 });\n      el = angular.element('<a ui-sref=\".detail\">Details</a>');\n      scope = $rootScope;\n      scope.$apply();\n\n      $compile(el)(scope);\n      template = $compile(angular.element('<div><ui-view></ui-view><div>'))(scope);\n      scope.$digest();\n    }));\n\n    it('should work', inject(function ($state, $stateParams, $q, $timeout) {\n      triggerClick(el);\n      $timeout.flush();\n      $q.flush();\n\n      expect($state.$current.name).toBe('contacts.item.detail');\n      expect(obj($state.params)).toEqual({ id: 5 });\n    }));\n\n    it('should resolve states from parent uiView', inject(function ($state, $stateParams, $q, $timeout) {\n      $state.transitionTo('contacts');\n      $q.flush();\n\n      const parentToChild = angular.element(template[0].querySelector('a.item'));\n      triggerClick(parentToChild);\n      $timeout.flush();\n      $q.flush();\n      expect($state.$current.name).toBe('contacts.item');\n\n      const childToGrandchild = angular.element(template[0].querySelector('a.item-detail'));\n      const childToParent = angular.element(template[0].querySelector('a.item-parent'));\n\n      triggerClick(childToGrandchild);\n      $timeout.flush();\n      $q.flush();\n\n      const grandchildToParent = angular.element(template[0].querySelector('a.item-parent2'));\n      expect($state.$current.name).toBe('contacts.item.detail');\n\n      triggerClick(grandchildToParent);\n      $timeout.flush();\n      $q.flush();\n      expect($state.$current.name).toBe('contacts.item');\n\n      $state.transitionTo('contacts.item.detail', { id: 3 });\n      triggerClick(childToParent);\n      $timeout.flush();\n      $q.flush();\n      expect($state.$current.name).toBe('contacts');\n    }));\n  });\n\n  describe('option event', function () {\n    it('should bind click event by default', inject(function ($rootScope, $compile, $state, $timeout) {\n      el = angular.element('<a ui-sref=\"contacts\"></a>');\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n\n      expect($state.current.name).toEqual('top');\n\n      triggerClick(el);\n      $timeout.flush();\n\n      expect($state.current.name).toEqual('contacts');\n    }));\n\n    it('should bind single HTML events', inject(function ($rootScope, $compile, $state, $timeout) {\n      el = angular.element('<input type=\"text\" ui-sref=\"contacts\" ui-sref-opts=\"{ events: [\\'change\\'] }\">');\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n\n      expect($state.current.name).toEqual('top');\n\n      triggerHTMLEvent('change');\n      $timeout.flush();\n\n      expect($state.current.name).toEqual('contacts');\n    }));\n\n    it('should bind multiple HTML events', inject(function ($rootScope, $compile, $state, $timeout) {\n      el = angular.element('<input type=\"text\" ui-sref=\"contacts\" ui-sref-opts=\"{ events: [\\'change\\', \\'blur\\'] }\">');\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n\n      expect($state.current.name).toEqual('top');\n\n      triggerHTMLEvent('change');\n      $timeout.flush();\n      expect($state.current.name).toEqual('contacts');\n\n      $state.go('top');\n      $rootScope.$digest();\n\n      expect($state.current.name).toEqual('top');\n\n      triggerHTMLEvent('blur');\n      $timeout.flush();\n      expect($state.current.name).toEqual('contacts');\n    }));\n\n    it('should bind multiple Mouse events', inject(function ($rootScope, $compile, $state, $timeout) {\n      el = angular.element('<a ui-sref=\"contacts\" ui-sref-opts=\"{ events: [\\'mouseover\\', \\'mousedown\\'] }\">');\n      $compile(el)($rootScope);\n      $rootScope.$digest();\n\n      expect($state.current.name).toEqual('top');\n\n      triggerMouseEvent('mouseover');\n      $timeout.flush();\n      expect($state.current.name).toEqual('contacts');\n\n      $state.go('top');\n      $rootScope.$digest();\n\n      expect($state.current.name).toEqual('top');\n\n      triggerMouseEvent('mousedown');\n      $timeout.flush();\n      expect($state.current.name).toEqual('contacts');\n    }));\n  });\n});\n\ndescribe('uiSrefActive', function () {\n  let el, template, scope, document, _stateProvider;\n\n  beforeEach(module('ui.router'));\n\n  beforeEach(\n    module(function ($stateProvider) {\n      _stateProvider = $stateProvider;\n      $stateProvider\n        .state('top', {\n          url: '',\n        })\n        .state('contacts', {\n          url: '/contacts',\n          views: {\n            $default: {\n              template: '<a ui-sref=\".item({ id: 6 })\" ui-sref-active=\"active\">Contacts</a>',\n            },\n          },\n        })\n        .state('contacts.item', {\n          url: '/:id',\n        })\n        .state('contacts.item.detail', {\n          url: '/detail/:foo',\n        })\n        .state('contacts.item.edit', {\n          url: '/edit',\n        })\n        .state('admin', {\n          url: '/admin',\n          abstract: true,\n          template: '<ui-view/>',\n        })\n        .state('admin.roles', {\n          url: '/roles?page',\n        })\n        .state('arrayparam', {\n          url: '/arrayparam?{foo:int}&bar',\n          template: '<div></div>',\n        });\n    })\n  );\n\n  beforeEach(inject(function ($document, $timeout) {\n    document = $document[0];\n    timeoutFlush = function () {\n      try {\n        $timeout.flush();\n      } catch (e) {\n        // Angular 1.0.8 throws 'No deferred tasks to be flushed' if there is nothing in queue.\n        // Behave as Angular >=1.1.5 and do nothing in such case.\n      }\n    };\n  }));\n\n  it('should update class for sibling uiSref', inject(function ($rootScope, $q, $compile, $state) {\n    el = angular.element(\n      '<div><a ui-sref=\"contacts.item({ id: 1 })\" ui-sref-active=\"active\">Contacts</a><a ui-sref=\"contacts.item({ id: 2 })\" ui-sref-active=\"active\">Contacts</a></div>'\n    );\n    template = $compile(el)($rootScope);\n    $rootScope.$digest();\n\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n    $state.transitionTo('contacts.item', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n\n    $state.transitionTo('contacts.item', { id: 2 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n  }));\n\n  it(\"should match state's parameters\", inject(function ($rootScope, $q, $compile, $state) {\n    el = angular.element(\n      '<div><a ui-sref=\"contacts.item.detail({ foo: \\'bar\\' })\" ui-sref-active=\"active\">Contacts</a></div>'\n    );\n    template = $compile(el)($rootScope);\n    $rootScope.$digest();\n\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n    $state.transitionTo('contacts.item.detail', { id: 5, foo: 'bar' });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n\n    $state.transitionTo('contacts.item.detail', { id: 5, foo: 'baz' });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n  }));\n\n  // Test for #2696\n  it('should compare using typed parameters', inject(function ($rootScope, $q, $compile, $state) {\n    el = angular.element('<div><a ui-sref=\"arrayparam({ foo: [1,2,3] })\" ui-sref-active=\"active\">foo 123</a></div>');\n    template = $compile(el)($rootScope);\n    $rootScope.$digest();\n\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n\n    $state.transitionTo('arrayparam', { foo: [1, 2, 3] });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n\n    $state.transitionTo('arrayparam', { foo: [1, 2, 3], bar: 'asdf' });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n\n    $state.transitionTo('arrayparam', { foo: [1, 2] });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n  }));\n\n  // Test for #3154\n  it('should compare ui-sref-active-eq using typed parameters', inject(function ($rootScope, $q, $compile, $state) {\n    el = angular.element('<div><a ui-sref=\"arrayparam({ foo: [1,2,3] })\" ui-sref-active-eq=\"active\">foo 123</a></div>');\n    template = $compile(el)($rootScope);\n    $rootScope.$digest();\n\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n\n    $state.transitionTo('arrayparam', { foo: [1, 2, 3] });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n\n    $state.transitionTo('arrayparam', { foo: [1, 2, 3], bar: 'asdf' });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n\n    $state.transitionTo('arrayparam', { foo: [1, 2] });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n  }));\n\n  it('should update in response to ui-sref param expression changes', inject(function (\n    $rootScope,\n    $q,\n    $compile,\n    $state\n  ) {\n    el = angular.element(\n      '<div><a ui-sref=\"contacts.item.detail({ foo: fooId })\" ui-sref-active=\"active\">Contacts</a></div>'\n    );\n    template = $compile(el)($rootScope);\n    $rootScope.fooId = 'bar';\n    $rootScope.$digest();\n\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n    $state.transitionTo('contacts.item.detail', { id: 5, foo: 'bar' });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n\n    $rootScope.fooId = 'baz';\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n  }));\n\n  it('should match on child states', inject(function ($rootScope, $q, $compile, $state) {\n    template = $compile('<div><a ui-sref=\"contacts.item({ id: 1 })\" ui-sref-active=\"active\">Contacts</a></div>')(\n      $rootScope\n    );\n    $rootScope.$digest();\n    const a = angular.element(template[0].getElementsByTagName('a')[0]);\n\n    $state.transitionTo('contacts.item.edit', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect($state.params.id).toBe('1');\n    expect(a.attr('class')).toMatch(/active/);\n\n    $state.transitionTo('contacts.item.edit', { id: 4 });\n    $q.flush();\n    timeoutFlush();\n    expect($state.params.id).toBe('4');\n    expect(a.attr('class')).not.toMatch(/active/);\n  }));\n\n  it('should NOT match on child states when active-equals is used', inject(function ($rootScope, $q, $compile, $state) {\n    template = $compile('<div><a ui-sref=\"contacts.item({ id: 1 })\" ui-sref-active-eq=\"active\">Contacts</a></div>')(\n      $rootScope\n    );\n    $rootScope.$digest();\n    const a = angular.element(template[0].getElementsByTagName('a')[0]);\n\n    $state.transitionTo('contacts.item', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(a.attr('class')).toMatch(/active/);\n\n    $state.transitionTo('contacts.item.edit', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(a.attr('class')).not.toMatch(/active/);\n  }));\n\n  it('should match on child states when active-equals and active-equals-eq is used', inject(function (\n    $rootScope,\n    $q,\n    $compile,\n    $state,\n    $timeout\n  ) {\n    template = $compile(\n      '<div><a ui-sref=\"contacts.item({ id: 1 })\" ui-sref-active=\"active\" ui-sref-active-eq=\"active-eq\">Contacts</a></div>'\n    )($rootScope);\n    $rootScope.$digest();\n    const a = angular.element(template[0].getElementsByTagName('a')[0]);\n\n    $state.transitionTo('contacts.item', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(a.attr('class')).toMatch(/active/);\n    expect(a.attr('class')).toMatch(/active-eq/);\n\n    $state.transitionTo('contacts.item.edit', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(a.attr('class')).toMatch(/active/);\n    expect(a.attr('class')).not.toMatch(/active-eq/);\n  }));\n\n  it('should resolve relative state refs', inject(function ($rootScope, $q, $compile, $state) {\n    el = angular.element('<section><div ui-view></div></section>');\n    template = $compile(el)($rootScope);\n    $rootScope.$digest();\n\n    $state.transitionTo('contacts');\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('ng-scope');\n\n    $state.transitionTo('contacts.item', { id: 6 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('ng-scope active');\n\n    $state.transitionTo('contacts.item', { id: 5 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('ng-scope');\n  }));\n\n  it('should match on any child state refs', inject(function ($rootScope, $q, $compile, $state) {\n    el = angular.element(\n      '<div ui-sref-active=\"active\"><a ui-sref=\"contacts.item({ id: 1 })\">Contacts</a><a ui-sref=\"contacts.item({ id: 2 })\">Contacts</a></div>'\n    );\n    template = $compile(el)($rootScope);\n    $rootScope.$digest();\n\n    expect(angular.element(template[0]).attr('class')).toBe('ng-scope');\n\n    $state.transitionTo('contacts.item', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0]).attr('class')).toBe('ng-scope active');\n\n    $state.transitionTo('contacts.item', { id: 2 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0]).attr('class')).toBe('ng-scope active');\n  }));\n\n  it('should match fuzzy on lazy loaded states', inject(function ($rootScope, $q, $compile, $state) {\n    el = angular.element('<div><a ui-sref=\"contacts.lazy\" ui-sref-active=\"active\">Lazy Contact</a></div>');\n    template = $compile(el)($rootScope);\n    $q.flush();\n\n    _stateProvider.onInvalid(function ($to$) {\n      if ($to$.name() === 'contacts.lazy') {\n        _stateProvider.state('contacts.lazy', {});\n        return $to$;\n      }\n    });\n\n    $state.transitionTo('contacts.item', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n\n    $state.transitionTo('contacts.lazy');\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n  }));\n\n  it('should match exactly on lazy loaded states', inject(function ($transitions, $rootScope, $q, $compile, $state) {\n    el = angular.element('<div><a ui-sref=\"contacts.lazy\" ui-sref-active-eq=\"active\">Lazy Contact</a></div>');\n    template = $compile(el)($rootScope);\n    $q.flush();\n\n    _stateProvider.onInvalid(function ($to$) {\n      if ($to$.name() === 'contacts.lazy') {\n        _stateProvider.state('contacts.lazy', {});\n        return $to$;\n      }\n    });\n\n    $state.transitionTo('contacts.item', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBeFalsy();\n\n    $state.transitionTo('contacts.lazy');\n    $q.flush();\n    timeoutFlush();\n    expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('active');\n  }));\n\n  it('should allow multiple classes to be supplied', inject(function ($rootScope, $q, $compile, $state) {\n    template = $compile(\n      '<div><a ui-sref=\"contacts.item({ id: 1 })\" ui-sref-active=\"active also-active\">Contacts</a></div>'\n    )($rootScope);\n    $rootScope.$digest();\n    const a = angular.element(template[0].getElementsByTagName('a')[0]);\n\n    $state.transitionTo('contacts.item.edit', { id: 1 });\n    $q.flush();\n    timeoutFlush();\n    expect(a.attr('class')).toMatch(/active also-active/);\n  }));\n\n  it('should not match fuzzy on lazy loaded future states', inject(function ($rootScope, $compile, $q, $state) {\n    _stateProvider.state('contacts.lazy.**', {\n      url: '/lazy',\n      lazyLoad: function () {\n        return $q.when().then(function () {\n          _stateProvider\n            .state('contacts.lazy', {\n              abstract: true,\n              url: '/lazy',\n            })\n            .state('contacts.lazy.s1', {\n              url: '/s1',\n            })\n            .state('contacts.lazy.s2', {\n              url: '/s2',\n            });\n        });\n      },\n    });\n    template = $compile(\n      '<div ui-sref-active=\"active\"><a ui-sref=\"contacts.lazy.s1\">Lazy</a></div><div ui-sref-active=\"active\"><a ui-sref=\"contacts.lazy.s2\"></a></div>'\n    )($rootScope);\n    $rootScope.$digest();\n    $state.transitionTo('contacts.lazy.s1');\n    $q.flush();\n    timeoutFlush();\n    expect(template.eq(0).hasClass('active')).toBeTruthy();\n    expect(template.eq(1).hasClass('active')).toBeFalsy();\n  }));\n\n  describe('ng-{class,style} interface', function () {\n    it('should match on abstract states that are included by the current state', inject(function (\n      $rootScope,\n      $compile,\n      $state,\n      $q\n    ) {\n      el = $compile(\n        '<div ui-sref-active=\"{active: \\'admin.*\\'}\"><a ui-sref-active=\"active\" ui-sref=\"admin.roles\">Roles</a></div>'\n      )($rootScope);\n      $state.transitionTo('admin.roles');\n      $q.flush();\n      timeoutFlush();\n      const abstractParent = el[0];\n      expect(abstractParent.className).toMatch(/active/);\n      const child = el[0].querySelector('a');\n      expect(child.className).toMatch(/active/);\n    }));\n\n    it('should match on state parameters', inject(function ($compile, $rootScope, $state, $q) {\n      el = $compile('<div ui-sref-active=\"{active: \\'admin.roles({page: 1})\\'}\"></div>')($rootScope);\n      $state.transitionTo('admin.roles', { page: 1 });\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).toMatch(/active/);\n    }));\n\n    it('should shadow the state provided by ui-sref', inject(function ($compile, $rootScope, $state, $q) {\n      el = $compile('<div ui-sref-active=\"{active: \\'admin.roles({page: 1})\\'}\"><a ui-sref=\"admin.roles\"></a></div>')(\n        $rootScope\n      );\n      $state.transitionTo('admin.roles');\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).not.toMatch(/active/);\n      $state.transitionTo('admin.roles', { page: 1 });\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).toMatch(/active/);\n    }));\n\n    it('should support multiple <className, stateOrName> pairs', inject(function ($compile, $rootScope, $state, $q) {\n      el = $compile(\"<div ui-sref-active=\\\"{contacts: 'contacts.**', admin: 'admin.roles({page: 1})'}\\\"></div>\")(\n        $rootScope\n      );\n      $state.transitionTo('contacts');\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).toMatch(/contacts/);\n      expect(el[0].className).not.toMatch(/admin/);\n      $state.transitionTo('admin.roles', { page: 1 });\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).toMatch(/admin/);\n      expect(el[0].className).not.toMatch(/contacts/);\n    }));\n\n    it('should update the active classes when compiled', inject(function ($compile, $rootScope, $document, $state, $q) {\n      $state.transitionTo('admin.roles');\n      $q.flush();\n      timeoutFlush();\n      el = $compile('<div ui-sref-active=\"{active: \\'admin.roles\\'}\"/>')($rootScope);\n      $rootScope.$digest();\n      timeoutFlush();\n      expect(el.hasClass('active')).toBeTruthy();\n    }));\n\n    it('should not match fuzzy on lazy loaded future states', inject(function ($rootScope, $compile, $q, $state) {\n      _stateProvider.state('contacts.lazy.**', {\n        url: '/lazy',\n        lazyLoad: function () {\n          return $q.when().then(function () {\n            _stateProvider\n              .state('contacts.lazy', {\n                abstract: true,\n                url: '/lazy',\n              })\n              .state('contacts.lazy.s1', {\n                url: '/s1',\n              })\n              .state('contacts.lazy.s2', {\n                url: '/s2',\n              });\n          });\n        },\n      });\n      template = $compile(\n        '<div ui-sref-active=\"{ active: \\'contacts.lazy.s1\\' }\"><a ui-sref=\"contacts.lazy.s1\">Lazy</a></div><div ui-sref-active=\"{ active: \\'contacts.lazy.s2\\' }\"></div>'\n      )($rootScope);\n      $rootScope.$digest();\n      $state.transitionTo('contacts.lazy.s1');\n      $q.flush();\n      timeoutFlush();\n      expect(template.eq(0).hasClass('active')).toBeTruthy();\n      expect(template.eq(1).hasClass('active')).toBeFalsy();\n    }));\n  });\n\n  describe('ng-{class,style} interface, and handle values as arrays', function () {\n    it('should match on abstract states that are included by the current state', inject(function (\n      $rootScope,\n      $compile,\n      $state,\n      $q\n    ) {\n      el = $compile(\n        '<div ui-sref-active=\"{active: [\\'randomState.**\\', \\'admin.roles\\']}\"><a ui-sref-active=\"active\" ui-sref=\"admin.roles\">Roles</a></div>'\n      )($rootScope);\n      $state.transitionTo('admin.roles');\n      $q.flush();\n      timeoutFlush();\n      const abstractParent = el[0];\n      expect(abstractParent.className).toMatch(/active/);\n      const child = el[0].querySelector('a');\n      expect(child.className).toMatch(/active/);\n    }));\n\n    it('should match on state parameters', inject(function ($compile, $rootScope, $state, $q) {\n      el = $compile('<div ui-sref-active=\"{active: [\\'admin.roles({page: 1})\\']}\"></div>')($rootScope);\n      $state.transitionTo('admin.roles', { page: 1 });\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).toMatch(/active/);\n    }));\n\n    it('should support multiple <className, stateOrName> pairs', inject(function ($compile, $rootScope, $state, $q) {\n      el = $compile(\n        \"<div ui-sref-active=\\\"{contacts: ['contacts.item', 'contacts.item.detail'], admin: 'admin.roles({page: 1})'}\\\"></div>\"\n      )($rootScope);\n      $state.transitionTo('contacts.item.detail', { id: 1, foo: 'bar' });\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).toMatch(/contacts/);\n      expect(el[0].className).not.toMatch(/admin/);\n      $state.transitionTo('admin.roles', { page: 1 });\n      $q.flush();\n      timeoutFlush();\n      expect(el[0].className).toMatch(/admin/);\n      expect(el[0].className).not.toMatch(/contacts/);\n    }));\n\n    it('should update the active classes when compiled', inject(function ($compile, $rootScope, $document, $state, $q) {\n      $state.transitionTo('admin.roles');\n      $q.flush();\n      timeoutFlush();\n      el = $compile(\"<div ui-sref-active=\\\"{active: ['admin.roles', 'admin.someOtherState']}\\\"/>\")($rootScope);\n      $rootScope.$digest();\n      timeoutFlush();\n      expect(el.hasClass('active')).toBeTruthy();\n    }));\n  });\n});\n"
  },
  {
    "path": "test/stateEventsSpec.ts",
    "content": "import * as angular from 'angular';\nimport { StateDeclaration } from '@uirouter/core';\nimport { resolvedError, obj, decorateExceptionHandler } from './util/testUtilsNg1';\nimport '../src/legacy/stateEvents';\n\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\ndescribe('UI-Router v0.2.x $state events', function () {\n  let $injector, stateProvider;\n\n  beforeEach(\n    module('ui.router.state.events', function ($stateEventsProvider, $exceptionHandlerProvider) {\n      $stateEventsProvider.enable();\n      decorateExceptionHandler($exceptionHandlerProvider);\n    })\n  );\n\n  let log, logEvents, logEnterExit;\n  function eventLogger(event, to, toParams, from, fromParams) {\n    if (logEvents && angular.isFunction(to.to)) {\n      const transition = to;\n      log += event.name + '(' + transition.to().name + ',' + transition.from().name + ');';\n    } else if (logEvents) {\n      log +=\n        event.name +\n        '(' +\n        (angular.isString(to.name) ? to.name : to) +\n        ',' +\n        (angular.isString(from.name) ? from.name : from) +\n        ');';\n    }\n  }\n  function callbackLogger(what) {\n    return function () {\n      if (logEnterExit) log += this.name + '.' + what + ';';\n    };\n  }\n\n  const A: StateDeclaration = { data: {} },\n    B: StateDeclaration = {},\n    C: StateDeclaration = {},\n    D: StateDeclaration = { params: { x: {}, y: {} } },\n    DD: StateDeclaration = { parent: D, params: { z: {} } },\n    E: StateDeclaration = { params: { i: {} } },\n    F: StateDeclaration = {\n      resolve: {\n        delay: function ($timeout) {\n          return $timeout(angular.noop, 50);\n        },\n      },\n    };\n\n  beforeEach(\n    module(function ($stateProvider, $provide) {\n      angular.forEach([A, B, C, D, DD], function (state) {\n        state.onEnter = callbackLogger('onEnter');\n        state.onExit = callbackLogger('onExit');\n      });\n      stateProvider = $stateProvider;\n\n      $stateProvider\n        .state('A', A)\n        .state('B', B)\n        .state('C', C)\n        .state('D', D)\n        .state('DD', DD)\n        .state('E', E)\n        .state('F', F);\n    })\n  );\n\n  beforeEach(inject(function ($rootScope, _$injector_) {\n    $injector = _$injector_;\n    log = '';\n    logEvents = logEnterExit = false;\n    $rootScope.$on('$stateChangeStart', eventLogger);\n    $rootScope.$on('$stateChangeSuccess', eventLogger);\n    $rootScope.$on('$stateChangeError', eventLogger);\n    $rootScope.$on('$stateNotFound', eventLogger);\n  }));\n\n  function $get(what) {\n    return $injector.get(what);\n  }\n\n  function initStateTo(state, optionalParams?, optionalOptions?) {\n    const $state = $get('$state'),\n      $q = $get('$q');\n    $state.transitionTo(state, optionalParams || {}, optionalOptions || {});\n    $q.flush();\n    expect($state.current).toBe(state);\n  }\n\n  describe('.transitionTo()', function () {\n    it('triggers $stateChangeStart', inject(function ($state, $q, $rootScope) {\n      initStateTo(E, { i: 'iii' }, { anOption: true });\n      let called;\n      $rootScope.$on('$stateChangeStart', function (ev, to, toParams, from, fromParams, options) {\n        expect(from).toBe(E);\n\n        expect(obj(fromParams)).toEqual({ i: 'iii' });\n\n        expect(to).toBe(D);\n\n        expect(obj(toParams)).toEqual({ x: '1', y: '2' });\n\n        expect(options.custom.anOption).toBe(false);\n\n        expect($state.current).toBe(from); // $state not updated yet\n        expect(obj($state.params)).toEqual(obj(fromParams));\n        called = true;\n      });\n      $state.transitionTo(D, { x: '1', y: '2' }, { custom: { anOption: false } });\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current).toBe(D);\n    }));\n\n    it('can be cancelled by preventDefault() in $stateChangeStart', inject(function ($state, $q, $rootScope) {\n      $state.defaultErrorHandler(function () {});\n      initStateTo(A);\n      let called;\n      $rootScope.$on('$stateChangeStart', function (ev) {\n        ev.preventDefault();\n        called = true;\n      });\n      const promise = $state.transitionTo(B, {});\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current).toBe(A);\n      expect(resolvedError(promise)).toBeTruthy();\n    }));\n\n    it('triggers $stateNotFound', inject(function ($state, $q, $rootScope) {\n      initStateTo(E, { i: 'iii' });\n      let called;\n      $rootScope.$on('$stateNotFound', function (ev, unfoundState, fromState, fromParams) {\n        expect(fromState).toBe(E);\n        expect(obj(fromParams)).toEqual({ i: 'iii' });\n        expect(unfoundState.to).toEqual('never_defined');\n        expect(unfoundState.toParams).toEqual({ x: '1', y: '2' });\n\n        expect($state.current).toBe(E); // $state not updated yet\n        expect(obj($state.params)).toEqual({ i: 'iii' });\n        called = true;\n      });\n      let message;\n      $state.transitionTo('never_defined', { x: '1', y: '2' }).catch(function (e) {\n        message = e.detail;\n      });\n      $q.flush();\n      expect(message).toEqual(\"No such state 'never_defined'\");\n      expect(called).toBeTruthy();\n      expect($state.current).toBe(E);\n    }));\n\n    it('throws Error on failed relative state resolution', inject(function ($state, $q) {\n      $state.transitionTo(DD);\n      $q.flush();\n      let error,\n        promise = $state.transitionTo('^.Z', null, { relative: $state.$current });\n      promise.catch(function (e) {\n        error = e.detail;\n      });\n      $q.flush();\n\n      const err = \"Could not resolve '^.Z' from state 'DD'\";\n      expect(error).toBe(err);\n    }));\n\n    it('sends $stateChangeError for exceptions in onEnter', inject(function (\n      $state,\n      $q,\n      $rootScope,\n      $exceptionHandler\n    ) {\n      $exceptionHandler.disabled = true;\n      $state.defaultErrorHandler(function () {});\n\n      stateProvider.state('onEnterFail', {\n        onEnter: function () {\n          throw new Error('negative onEnter');\n        },\n      });\n\n      let called;\n      $rootScope.$on('$stateChangeError', function (ev, to, toParams, from, fromParams, options) {\n        called = true;\n      });\n\n      initStateTo(A);\n      $state.transitionTo('onEnterFail');\n      $q.flush();\n\n      expect(called).toBeTruthy();\n      expect($state.current.name).toEqual(A.name);\n    }));\n\n    it('can be cancelled by preventDefault() in $stateNotFound', inject(function ($state, $q, $rootScope) {\n      initStateTo(A);\n      let called;\n      $rootScope.$on('$stateNotFound', function (ev) {\n        ev.preventDefault();\n        called = true;\n      });\n      const promise = $state.transitionTo('never_defined', {});\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current).toBe(A);\n      expect(resolvedError(promise)).toBeTruthy();\n    }));\n\n    it('can be redirected in $stateNotFound', inject(function ($state, $q, $rootScope) {\n      initStateTo(A);\n      let called;\n      $rootScope.$on('$stateNotFound', function (ev, redirect) {\n        redirect.to = D;\n        redirect.toParams = { x: '1', y: '2' };\n        called = true;\n      });\n      const promise = $state.transitionTo('never_defined', { z: 3 });\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current).toBe(D);\n      expect(obj($state.params)).toEqual({ x: '1', y: '2' });\n    }));\n\n    it('can lazy-define a state in $stateNotFound', inject(function ($state, $q, $rootScope) {\n      initStateTo(DD, { x: 1, y: 2, z: 3 });\n      let called;\n      $rootScope.$on('$stateNotFound', function (ev, redirect) {\n        stateProvider.state(redirect.to, { parent: DD, params: { w: {} } });\n        ev.retry = called = true;\n      });\n      const promise = $state.go('DDD', { w: 4 });\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current.name).toEqual('DDD');\n      expect(obj($state.params)).toEqual({ x: 1, y: 2, z: 3, w: 4 });\n    }));\n\n    it('can defer a state transition in $stateNotFound', inject(function ($state, $q, $rootScope) {\n      initStateTo(A);\n      let called;\n      const deferred = $q.defer();\n      $rootScope.$on('$stateNotFound', function (ev, redirect) {\n        ev.retry = deferred.promise;\n        called = true;\n      });\n      const promise = $state.go('AA', { a: 1 });\n      stateProvider.state('AA', { parent: A, params: { a: {} } });\n      deferred.resolve();\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current.name).toEqual('AA');\n      expect(obj($state.params)).toEqual({ a: 1 });\n    }));\n\n    it('can defer and supersede a state transition in $stateNotFound', inject(function ($state, $q, $rootScope) {\n      initStateTo(A);\n      let called;\n      const deferred = $q.defer();\n      $rootScope.$on('$stateNotFound', function (ev, redirect) {\n        ev.retry = deferred.promise;\n        called = true;\n      });\n      const promise = $state.go('AA', { a: 1 });\n      $state.go(B);\n      stateProvider.state('AA', { parent: A, params: { a: {} } });\n      deferred.resolve();\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current).toEqual(B);\n      expect(obj($state.params)).toEqual({});\n    }));\n\n    it('triggers $stateChangeSuccess', inject(function ($state, $q, $rootScope) {\n      initStateTo(E, { i: 'iii' });\n      let called;\n      $rootScope.$on('$stateChangeSuccess', function (ev, to, toParams, from, fromParams) {\n        expect(from).toBe(E);\n        expect(obj(fromParams)).toEqual({ i: 'iii' });\n        expect(to).toBe(D);\n        expect(obj(toParams)).toEqual({ x: '1', y: '2' });\n\n        expect($state.current).toBe(to); // $state has been updated\n        expect(obj($state.params)).toEqual(obj(toParams));\n        called = true;\n      });\n      $state.transitionTo(D, { x: '1', y: '2' });\n      $q.flush();\n      expect(called).toBeTruthy();\n      expect($state.current).toBe(D);\n    }));\n\n    it('does not trigger $stateChangeSuccess when suppressed, but changes state', inject(function (\n      $state,\n      $q,\n      $rootScope\n    ) {\n      initStateTo(E, { i: 'iii' });\n      let called;\n\n      $rootScope.$on('$stateChangeSuccess', function (ev, to, toParams, from, fromParams) {\n        called = true;\n      });\n\n      $state.transitionTo(D, { x: '1', y: '2' }, { notify: false });\n      $q.flush();\n\n      expect(called).toBeFalsy();\n      expect($state.current).toBe(D);\n    }));\n\n    it('does not trigger $stateChangeSuccess when suppressed, but updates params', inject(function (\n      $state,\n      $q,\n      $rootScope\n    ) {\n      initStateTo(E, { x: 'iii' });\n      let called;\n\n      $rootScope.$on('$stateChangeSuccess', function (ev, transition) {\n        called = true;\n      });\n      $state.transitionTo(E, { i: '1', y: '2' }, { notify: false });\n      $q.flush();\n\n      expect(called).toBeFalsy();\n      expect($state.params.i).toBe('1');\n      expect($state.current).toBe(E);\n    }));\n\n    it('aborts pending transitions even when going back to the current state', inject(function ($state, $q, $timeout) {\n      initStateTo(A);\n      logEvents = true;\n      $state.defaultErrorHandler(function () {});\n\n      const superseded = $state.transitionTo(F, {});\n      $q.flush();\n      expect($state.current).toBe(A);\n\n      $state.transitionTo(A, {});\n      $q.flush();\n      $timeout.flush();\n      expect($state.current).toBe(A);\n      expect(resolvedError(superseded)).toBeTruthy();\n      expect(log).toBe('$stateChangeStart(F,A);');\n    }));\n\n    it('aborts pending transitions (last call wins)', inject(function ($state, $q, $timeout) {\n      initStateTo(A);\n      logEvents = true;\n      $state.defaultErrorHandler(function () {});\n\n      const superseded = $state.transitionTo(F, {});\n      $q.flush();\n\n      $state.transitionTo(C, {});\n      $q.flush();\n      $timeout.flush();\n      expect($state.current).toBe(C);\n      expect(resolvedError(superseded)).toBeTruthy();\n      expect(log).toBe('$stateChangeStart(F,A);' + '$stateChangeStart(C,A);' + '$stateChangeSuccess(C,A);');\n    }));\n  });\n});\n"
  },
  {
    "path": "test/stateFiltersSpec.ts",
    "content": "import * as angular from 'angular';\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\ndescribe('isState filter', function () {\n  beforeEach(module('ui.router'));\n  beforeEach(\n    module(function ($stateProvider) {\n      $stateProvider.state('a', { url: '/' }).state('a.b', { url: '/b' }).state('with-param', { url: '/with/:param' });\n    })\n  );\n\n  it('should return true if the current state exactly matches the input state', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('a');\n    $q.flush();\n    expect($parse('\"a\" | isState')($rootScope)).toBe(true);\n  }));\n\n  it('should return false if the current state does not exactly match the input state', inject(function (\n    $parse,\n    $q,\n    $state,\n    $rootScope\n  ) {\n    $state.go('a.b');\n    $q.flush();\n    expect($parse('\"a\" | isState')($rootScope)).toBe(false);\n  }));\n\n  it('should return true if the current state and param matches the input state', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('with-param', { param: 'a' });\n    $q.flush();\n    expect($parse('\"with-param\" | isState: {param: \"a\"}')($rootScope)).toBe(true);\n  }));\n\n  it('should return false if the current state and param does not match the input state', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('with-param', { param: 'b' });\n    $q.flush();\n    expect($parse('\"with-param\" | isState: {param: \"a\"}')($rootScope)).toBe(false);\n  }));\n});\n\ndescribe('includedByState filter', function () {\n  beforeEach(module('ui.router'));\n  beforeEach(\n    module(function ($stateProvider) {\n      $stateProvider\n        .state('a', { url: '/' })\n        .state('a.b', { url: '/b' })\n        .state('c', { url: '/c' })\n        .state('d', { url: '/d/:id' });\n    })\n  );\n\n  it('should return true if the current state exactly matches the input state', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('a');\n    $q.flush();\n    expect($parse('\"a\" | includedByState')($rootScope)).toBe(true);\n  }));\n\n  it('should return true if the current state includes the input state', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('a.b');\n    $q.flush();\n    expect($parse('\"a\" | includedByState')($rootScope)).toBe(true);\n  }));\n\n  it('should return false if the current state does not include input state', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('c');\n    $q.flush();\n    expect($parse('\"a\" | includedByState')($rootScope)).toBe(false);\n  }));\n\n  it('should return true if the current state include input state and params', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('d', { id: 123 });\n    $q.flush();\n    expect($parse('\"d\" | includedByState:{ id: 123 }')($rootScope)).toBe(true);\n  }));\n\n  it('should return false if the current state does not include input state and params', inject(function (\n    $parse,\n    $state,\n    $q,\n    $rootScope\n  ) {\n    $state.go('d', { id: 2377 });\n    $q.flush();\n    expect($parse('\"d\" | includedByState:{ id: 123 }')($rootScope)).toBe(false);\n  }));\n});\n"
  },
  {
    "path": "test/stateSpec.ts",
    "content": "import * as angular from 'angular';\nimport { extend, forEach, StateDeclaration, UrlMatcher } from '@uirouter/core';\nimport { obj, resolvedError, resolvedValue, html5Compat, decorateExceptionHandler } from './util/testUtilsNg1';\nimport { Ng1StateDeclaration } from '../src';\nimport '../src/legacy/stateEvents';\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\ndescribe('state', function () {\n  let $uiRouter, $injector, $stateProvider, locationProvider, templateParams, template, ctrlName, errors;\n\n  beforeEach(\n    module('ui.router', function ($exceptionHandlerProvider, $locationProvider, $uiRouterProvider) {\n      decorateExceptionHandler($exceptionHandlerProvider);\n      errors = [];\n      locationProvider = $locationProvider;\n      $locationProvider.html5Mode(false);\n      $locationProvider.hashPrefix('');\n      $uiRouter = $uiRouterProvider;\n    })\n  );\n\n  let log, logEvents, logEnterExit;\n  function callbackLogger(state, what) {\n    return function () {\n      if (logEnterExit) log += state.name + '.' + what + ';';\n    };\n  }\n\n  const A: Ng1StateDeclaration = {\n      data: {},\n      controller: function () {\n        log += 'controller;';\n      },\n      template: 'a',\n    },\n    B: Ng1StateDeclaration = { template: 'b' },\n    C: Ng1StateDeclaration = { template: 'c' },\n    D: Ng1StateDeclaration = { params: { x: null, y: null }, template: 'd' },\n    DD: Ng1StateDeclaration = { parent: D as StateDeclaration, params: { x: null, y: null, z: null }, template: 'dd' },\n    DDDD: Ng1StateDeclaration = { parent: D as StateDeclaration, controller: function () {}, template: 'hey' },\n    E: Ng1StateDeclaration = { params: { i: {} }, template: 'e' },\n    F: Ng1StateDeclaration = { params: { a: '', b: false, c: 0, d: undefined, e: -1 }, template: 'f' },\n    H: Ng1StateDeclaration = { data: { propA: 'propA', propB: 'propB' }, template: 'h' },\n    HH: Ng1StateDeclaration = { parent: H as StateDeclaration, template: 'hh' },\n    HHH: Ng1StateDeclaration = {\n      parent: HH as StateDeclaration,\n      data: { propA: 'overriddenA', propC: 'propC' },\n      template: 'hhh',\n    },\n    RS: Ng1StateDeclaration = { url: '^/search?term', reloadOnSearch: false, template: 'rs' },\n    OPT: Ng1StateDeclaration = { url: '/opt/:param', params: { param: '100' }, template: 'opt' },\n    OPT2: Ng1StateDeclaration = {\n      url: '/opt2/:param2/:param3',\n      params: { param3: '300', param4: '400' },\n      template: 'opt2',\n    },\n    ISS2101: Ng1StateDeclaration = { params: { bar: { squash: false, value: 'qux' } }, url: '/2101/{bar:string}' },\n    URLLESS: Ng1StateDeclaration = { url: '/urllessparams', params: { myparam: { type: 'int' } } },\n    AppInjectable = {};\n\n  beforeEach(\n    module(function (_$stateProvider_, $provide) {\n      forEach([A, B, C, D, DD, E, H, HH, HHH], function (state) {\n        state.onEnter = callbackLogger(state, 'onEnter');\n        state.onExit = callbackLogger(state, 'onExit');\n      });\n      $stateProvider = _$stateProvider_;\n\n      $stateProvider\n        .state('A', A)\n        .state('B', B)\n        .state('C', C)\n        .state('D', D)\n        .state('DD', DD)\n        .state('DDDD', DDDD)\n        .state('E', E)\n        .state('F', F)\n        .state('H', H)\n        .state('HH', HH)\n        .state('HHH', HHH)\n        .state('RS', RS)\n        .state('OPT', OPT)\n        .state('OPT.OPT2', OPT2)\n        .state('ISS2101', ISS2101)\n        .state('URLLESS', URLLESS)\n        .state('home', { url: '/' })\n        .state('home.item', { url: 'front/:id' })\n        .state('about', {\n          url: '/about',\n          resolve: {\n            stateInfo: function ($transition$) {\n              return [$transition$.from().name, $transition$.to().name];\n            },\n          },\n          onEnter: function (stateInfo) {\n            log = stateInfo.join(' => ');\n          },\n        })\n        .state('about.person', { url: '/:person' })\n        .state('about.person.item', { url: '/:id' })\n        .state('about.sidebar', {})\n        .state('about.sidebar.item', {\n          url: '/:item',\n          templateUrl: function (params) {\n            templateParams = params;\n            return '/templates/' + params.item + '.html';\n          },\n        })\n        .state('dynamicTemplate', {\n          url: '/dynamicTemplate/:type',\n          templateProvider: function ($stateParams, foo) {\n            template = $stateParams.type + foo + 'Template';\n            return template;\n          },\n          resolve: {\n            foo: function () {\n              return 'Foo';\n            },\n          },\n        })\n        .state('dynamicController', {\n          url: '/dynamicController/:type',\n          template: 'a',\n          controllerProvider: [\n            '$stateParams',\n            function ($stateParams) {\n              ctrlName = $stateParams.type + 'Controller';\n              return ctrlName;\n            },\n          ],\n        })\n        .state('home.redirect', {\n          url: 'redir',\n          onEnter: function ($state) {\n            $state.transitionTo('about');\n          },\n        })\n        .state('resolveFail', {\n          url: '/resolve-fail',\n          resolve: {\n            badness: function ($q) {\n              return $q.reject('!');\n            },\n          },\n          onEnter: function (badness) {},\n        })\n        .state('resolveTimeout', {\n          url: '/resolve-timeout/:foo',\n          resolve: {\n            value: function ($timeout) {\n              return $timeout(function () {\n                log += 'Success!';\n              }, 1);\n            },\n          },\n          onEnter: function (value) {},\n          template: '-',\n          controller: function () {\n            log += 'controller;';\n          },\n        })\n        .state('badParam', {\n          url: '/bad/{param:int}',\n        })\n        .state('badParam2', {\n          url: '/bad2/{param:[0-9]{5}}',\n        })\n\n        .state('json', { url: '/jsonstate/{param:json}' })\n\n        .state('first', { url: '^/first/subpath' })\n        .state('second', { url: '^/second' })\n\n        // State param inheritance tests. param1 is inherited by sub1 & sub2;\n        // param2 should not be transferred (unless explicitly set).\n        .state('root', { url: '^/root?param1' })\n        .state('root.sub1', { url: '/1?param2' })\n        .state('logA', {\n          url: '/logA',\n          template: '<div> <div ui-view/></div>',\n          controller: function () {\n            log += 'logA;';\n          },\n        })\n        .state('logA.logB', {\n          url: '/logB',\n          views: {\n            $default: {\n              template: '<div> <div ui-view/></div>',\n              controller: function () {\n                log += 'logB;';\n              },\n            },\n          },\n        })\n        .state('logA.logB.logC', {\n          url: '/logC',\n          views: {\n            $default: {\n              template: '<div> <div ui-view/></div>',\n              controller: function () {\n                log += 'logC;';\n              },\n            },\n          },\n        });\n      $stateProvider.state('root.sub2', { url: '/2?param2' });\n\n      $provide.value('AppInjectable', AppInjectable);\n    })\n  );\n\n  beforeEach(inject(function (_$injector_, $state) {\n    $state.defaultErrorHandler(function (error) {\n      errors.push(error);\n    });\n    $injector = _$injector_;\n    log = '';\n    logEvents = logEnterExit = false;\n  }));\n\n  function $get(what) {\n    return $injector.get(what);\n  }\n\n  function initStateTo(state, params?) {\n    const $state = $get('$state'),\n      $q = $get('$q');\n    $state.transitionTo(state, params || {});\n    $q.flush();\n    expect($state.current).toBe(state);\n  }\n\n  describe('provider', function () {\n    it('should ignore Object properties when registering states', function () {\n      expect(function () {\n        $stateProvider.state('toString', { url: '/to-string' });\n      }).not.toThrow();\n      expect(function () {\n        $stateProvider.state('watch', { url: '/watch' });\n      }).not.toThrow();\n    });\n  });\n\n  describe('.transitionTo()', function () {\n    let $rootScope, $state, $stateParams, $transitions, $q, $location;\n\n    beforeEach(inject(function (_$rootScope_, _$state_, _$stateParams_, _$transitions_, _$q_, _$location_) {\n      $rootScope = _$rootScope_;\n      $state = _$state_;\n      $stateParams = _$stateParams_;\n      $transitions = _$transitions_;\n      $q = _$q_;\n      $location = _$location_;\n    }));\n\n    it('returns a promise for the target state', inject(function ($state, $q) {\n      const promise = $state.transitionTo(A, {});\n      expect(angular.isFunction(promise.then)).toBeTruthy();\n      expect(promise.transition.to()).toBe(A);\n    }));\n\n    // @todo this should fail:\n    // $state.transitionTo('about.person.item', { id: 5 }); $q.flush();\n\n    it('allows transitions by name', inject(function ($state, $q) {\n      $state.transitionTo('A', {});\n      $q.flush();\n      expect($state.current).toBe(A);\n    }));\n\n    describe('dynamic transitions', function () {\n      let dynlog, paramsChangedLog;\n      let dynamicstate, childWithParam, childNoParam;\n\n      beforeEach(inject(function ($compile, $rootScope) {\n        dynlog = paramsChangedLog = '';\n        dynamicstate = {\n          name: 'dyn',\n          url: '^/dynstate/:path/:pathDyn?search&searchDyn',\n          params: {\n            pathDyn: { dynamic: true },\n            searchDyn: { dynamic: true },\n          },\n          template: 'dyn state. <div ui-view></div>',\n          controller: function () {\n            this.uiOnParamsChanged = function (updatedParams) {\n              const paramNames = Object.keys(updatedParams).sort();\n              const keyValues = paramNames.map(function (key) {\n                return key + '=' + updatedParams[key];\n              });\n              dynlog += '[' + keyValues.join(',') + '];';\n              paramsChangedLog += paramNames.join(',') + ';';\n            };\n          },\n        };\n\n        childWithParam = {\n          name: 'dyn.child',\n          url: '/child',\n          params: {\n            config: 'c1', // allow empty\n            configDyn: { value: null, dynamic: true },\n          },\n          template: 'dyn.child state',\n          controller: function () {\n            this.uiOnParamsChanged = function (updatedParams) {\n              const paramNames = Object.keys(updatedParams).sort();\n              const keyValues = paramNames.map(function (key) {\n                return key + '=' + updatedParams[key];\n              });\n              dynlog += '{' + keyValues.join(',') + '};';\n              paramsChangedLog += paramNames.join(',') + ';';\n            };\n          },\n        };\n\n        childNoParam = {\n          name: 'dyn.noparams',\n          url: '/noparams',\n          template: 'dyn.noparams state',\n          controller: function () {\n            this.uiOnParamsChanged = function (updatedParams) {\n              const paramNames = Object.keys(updatedParams).sort();\n              const keyValues = paramNames.map(function (key) {\n                return key + '=' + updatedParams[key];\n              });\n              dynlog += '<' + keyValues.join(',') + '>;';\n              paramsChangedLog += paramNames.join(',') + ';';\n            };\n          },\n        };\n\n        $stateProvider.state(dynamicstate);\n        $stateProvider.state(childWithParam);\n        $stateProvider.state(childNoParam);\n\n        $transitions.onEnter({}, function (trans, state) {\n          dynlog += 'enter:' + state.name + ';';\n        });\n        $transitions.onExit({}, function (trans, state) {\n          dynlog += 'exit:' + state.name + ';';\n        });\n        $transitions.onSuccess({}, function () {\n          dynlog += 'success;';\n        });\n\n        $compile('<div><ui-view></ui-view></div>')($rootScope.$new());\n        initStateTo(dynamicstate, { path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd1' });\n        expect(dynlog).toBe('enter:dyn;success;');\n        dynlog = '';\n        expect(obj($stateParams)).toEqual({ path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd1' });\n        expect($location.url()).toEqual('/dynstate/p1/pd1?search=s1&searchDyn=sd1');\n      }));\n\n      describe('[ transition.dynamic() ]:', function () {\n        it('is considered fully dynamic when only dynamic params have changed', function () {\n          const promise = $state.go('.', { pathDyn: 'pd2', searchDyn: 'sd2' });\n          expect(promise.transition.dynamic()).toBeTruthy();\n        });\n\n        it('is not considered fully dynamic if any state is entered', function () {\n          const promise = $state.go(childWithParam);\n          expect(promise.transition.dynamic()).toBeFalsy();\n        });\n\n        it('is not considered fully dynamic if any state is exited', function () {\n          initStateTo(childWithParam, { config: 'p1', path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd1' });\n          const promise = $state.go(dynamicstate);\n          $q.flush();\n          expect(promise.transition.dynamic()).toBeFalsy();\n        });\n\n        it('is not considered fully dynamic if any state is reloaded', function () {\n          const promise = $state.go(dynamicstate, null, { reload: true });\n          expect(promise.transition.dynamic()).toBeFalsy();\n        });\n\n        it('is not considered fully dynamic if any non-dynamic parameter changes', function () {\n          const promise = $state.go(dynamicstate, { path: 'p2' });\n          expect(promise.transition.dynamic()).toBeFalsy();\n        });\n      });\n\n      describe('[ promises ]', function () {\n        it('runs successful transition when fully dynamic', function () {\n          let transSuccess,\n            promise = $state.go(dynamicstate, { searchDyn: 'sd2' }),\n            transition = promise.transition;\n          transition.promise.then(function (result) {\n            transSuccess = true;\n          });\n          $q.flush();\n          expect(transition.dynamic()).toBeTruthy();\n          expect(transSuccess).toBeTruthy();\n          expect(dynlog).toBe('success;[searchDyn=sd2];');\n        });\n\n        it('resolves the $state.go() promise with the original/final state, when fully dynamic', function () {\n          initStateTo(dynamicstate, { path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd1' });\n          let destState,\n            promise = $state.go(dynamicstate, { pathDyn: 'pd2', searchDyn: 'sd2' });\n          promise.then(function (result) {\n            destState = result;\n          });\n          $q.flush();\n          expect(promise.transition.dynamic()).toBeTruthy();\n          expect($state.current).toBe(dynamicstate);\n          expect(destState).toBe(dynamicstate);\n        });\n      });\n\n      describe('[ enter/exit ]', function () {\n        it('does not exit nor enter any states when fully dynamic', function () {\n          const promise = $state.go(dynamicstate, { searchDyn: 'sd2' });\n          $q.flush();\n          expect(promise.transition.dynamic()).toBeTruthy();\n          expect(promise.transition.treeChanges().entering.length).toBe(0);\n          expect(promise.transition.treeChanges().exiting.length).toBe(0);\n          expect(promise.transition.treeChanges().retained.length).toBe(2);\n          expect(dynlog).toBe('success;[searchDyn=sd2];');\n          expect(obj($stateParams)).toEqual({ path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd2' });\n        });\n\n        it('does not exit nor enter the state when only dynamic search params change', function () {\n          const promise = $state.go(dynamicstate, { searchDyn: 'sd2' });\n          $q.flush();\n          expect(promise.transition.dynamic()).toBeTruthy();\n          expect(dynlog).toBe('success;[searchDyn=sd2];');\n          expect(obj($stateParams)).toEqual({ path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd2' });\n        });\n\n        it('does not exit nor enter the state when only dynamic path params change', function () {\n          const promise = $state.go(dynamicstate, { pathDyn: 'pd2' });\n          $q.flush();\n          expect(promise.transition.dynamic()).toBeTruthy();\n          expect(dynlog).toBe('success;[pathDyn=pd2];');\n          expect(obj($stateParams)).toEqual({ path: 'p1', pathDyn: 'pd2', search: 's1', searchDyn: 'sd1' });\n        });\n\n        it('exits and enters a state when a non-dynamic search param changes', function () {\n          const promise = $state.go(dynamicstate, { search: 's2' });\n          $q.flush();\n          expect(promise.transition.dynamic()).toBeFalsy();\n          expect(dynlog).toBe('exit:dyn;enter:dyn;success;');\n          expect(obj($stateParams)).toEqual({ path: 'p1', pathDyn: 'pd1', search: 's2', searchDyn: 'sd1' });\n        });\n\n        it('exits and enters a state when a non-dynamic path param changes', function () {\n          const promise = $state.go(dynamicstate, { path: 'p2' });\n          $q.flush();\n          expect(promise.transition.dynamic()).toBeFalsy();\n          expect(dynlog).toBe('exit:dyn;enter:dyn;success;');\n          expect(obj($stateParams)).toEqual({ path: 'p2', pathDyn: 'pd1', search: 's1', searchDyn: 'sd1' });\n        });\n\n        it('does not exit nor enter a state when only dynamic params change (triggered via url)', function () {\n          $location.search({ search: 's1', searchDyn: 'sd2' });\n          $rootScope.$broadcast('$locationChangeSuccess');\n          $q.flush();\n          expect(dynlog).toBe('success;[searchDyn=sd2];');\n        });\n\n        it('exits and enters a state when any non-dynamic params change (triggered via url)', function () {\n          $location.search({ search: 's2', searchDyn: 'sd2' });\n          $rootScope.$broadcast('$locationChangeSuccess');\n          $q.flush();\n          expect(dynlog).toBe('exit:dyn;enter:dyn;success;');\n        });\n\n        it('does not exit nor enter a state when only dynamic params change (triggered via $state transition)', function () {\n          $state.go('.', { searchDyn: 'sd2' }, { inherit: true });\n          $q.flush();\n          expect(dynlog).toBe('success;[searchDyn=sd2];');\n        });\n      });\n\n      describe('[ global $stateParams service ]', function () {\n        it('updates the global $stateParams object', function () {\n          $state.go(dynamicstate, { searchDyn: 'sd2' });\n          $q.flush();\n          expect(obj($stateParams)).toEqual({ path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd2' });\n        });\n\n        it('updates $stateParams and $location.search when only dynamic params change (triggered via url)', function () {\n          $location.search({ search: 's1', searchDyn: 'sd2' });\n          $rootScope.$broadcast('$locationChangeSuccess');\n          $q.flush();\n          expect($stateParams.search).toBe('s1');\n          expect($stateParams.searchDyn).toBe('sd2');\n          expect($location.search()).toEqual({ search: 's1', searchDyn: 'sd2' });\n        });\n\n        it('updates $stateParams and $location.search when only dynamic params change (triggered via $state transition)', function () {\n          $state.go('.', { searchDyn: 'sd2' });\n          $q.flush();\n          expect($stateParams.search).toBe('s1');\n          expect($stateParams.searchDyn).toBe('sd2');\n          expect($location.search()).toEqual({ search: 's1', searchDyn: 'sd2' });\n        });\n\n        it('dynamic param changes can be observed by watching the global $stateParams', function () {\n          let observedParamValue;\n          function stateParamsTerm() {\n            return $stateParams.searchDyn;\n          }\n          $rootScope.$watch(stateParamsTerm, function (newval, oldval) {\n            if (newval === oldval) return;\n            observedParamValue = newval;\n          });\n          $q.flush();\n\n          $location.search({ search: 's1', searchDyn: 'sd2' });\n          $rootScope.$broadcast('$locationChangeSuccess');\n          $q.flush();\n          expect(observedParamValue).toBe('sd2');\n        });\n      });\n\n      describe('[ uiOnParamsChanged ]', function () {\n        it('should be called when dynamic parameter values change', function () {\n          $state.go('.', { searchDyn: 'sd2' });\n          $q.flush();\n          expect(paramsChangedLog).toBe('searchDyn;');\n        });\n\n        it(\"should not be called if a non-dynamic parameter changes (causing the controller's state to exit/enter)\", function () {\n          $state.go('.', { search: 's2', searchDyn: 'sd2' });\n          $q.flush();\n          expect(paramsChangedLog).toBe('');\n        });\n\n        it('should not be called, when entering a new state, if no parameter values change', function () {\n          $state.go(childNoParam);\n          $q.flush();\n          expect(paramsChangedLog).toBe('');\n        });\n\n        it('should be called, when entering a new state, if any dynamic parameter value changed', function () {\n          $state.go(childNoParam, { searchDyn: 'sd2' });\n          $q.flush();\n          expect(paramsChangedLog).toBe('searchDyn;');\n        });\n\n        it('should be called, when entering a new state, if a new parameter value is added', function () {\n          $state.go(childWithParam, { config: 'c2' });\n          $q.flush();\n          expect(paramsChangedLog).toBe('config,configDyn;');\n        });\n\n        it('should be called, when reactivating the uiOnParamsChanged state, if a dynamic parameter changed', function () {\n          initStateTo(childNoParam, { path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd1' });\n          dynlog = paramsChangedLog = '';\n\n          $state.go(dynamicstate, { pathDyn: 'pd2' });\n          $q.flush();\n          expect(paramsChangedLog).toBe('pathDyn;');\n        });\n\n        it('should not be called, when reactivating the uiOnParamsChanged state \"dyn\", if any of dyns non-dynamic parameters changed', function () {\n          initStateTo(childNoParam, { path: 'p1', pathDyn: 'pd1', search: 's1', searchDyn: 'sd1' });\n          dynlog = paramsChangedLog = '';\n\n          $state.go(dynamicstate, { path: 'p2' });\n          $q.flush();\n          expect(paramsChangedLog).toBe('');\n        });\n\n        it('should be called with an object containing only the changed params', function () {\n          $state.go(dynamicstate, { pathDyn: 'pd2' });\n          $q.flush();\n          expect(dynlog).toBe('success;[pathDyn=pd2];');\n\n          $state.go(dynamicstate, { pathDyn: 'pd3', searchDyn: 'sd2' });\n          $q.flush();\n          expect(dynlog).toBe('success;[pathDyn=pd2];success;[pathDyn=pd3,searchDyn=sd2];');\n        });\n\n        it('should be called on all active controllers that have a uiOnParamsChanged', function () {\n          initStateTo(childWithParam, {\n            path: 'p1',\n            pathDyn: 'pd1',\n            search: 's1',\n            searchDyn: 'sd1',\n            config: 'p1',\n            configDyn: 'c1',\n          });\n          dynlog = paramsChangedLog = '';\n\n          $state.go(childWithParam, { pathDyn: 'pd2' });\n          $q.flush();\n          expect(dynlog).toBe('success;[pathDyn=pd2];{pathDyn=pd2};');\n\n          dynlog = paramsChangedLog = '';\n          $state.go(childWithParam, { pathDyn: 'pd2', searchDyn: 'sd2', configDyn: 'cd2' });\n          $q.flush();\n          expect(dynlog).toBe('success;[configDyn=cd2,searchDyn=sd2];{configDyn=cd2,searchDyn=sd2};');\n        });\n      });\n    });\n\n    describe('(with dynamic params because reloadOnSearch=false)', function () {\n      describe('and only query params changed', function () {\n        let entered = false;\n        beforeEach(function () {\n          initStateTo(RS);\n          $transitions.onEnter({ entering: 'RS' }, function () {\n            entered = true;\n          });\n        });\n\n        it(\"doesn't re-enter state (triggered by url change)\", function () {\n          $location.search({ term: 'hello' });\n          $rootScope.$broadcast('$locationChangeSuccess');\n          $q.flush();\n          expect($location.search()).toEqual({ term: 'hello' });\n          expect(entered).toBeFalsy();\n        });\n\n        it(\"doesn't re-enter state (triggered by $state transition)\", function () {\n          initStateTo(RS);\n          const promise = $state.go('.', { term: 'hello' });\n          let success = false,\n            transition = promise.transition;\n          transition.promise.then(function () {\n            success = true;\n          });\n          $q.flush();\n          expect($state.current).toBe(RS);\n          expect(entered).toBeFalsy();\n          expect(success).toBeTruthy();\n          expect($location.search()).toEqual({ term: 'hello' });\n        });\n\n        it('updates $stateParams', function () {\n          initStateTo(RS);\n          $location.search({ term: 'hello' });\n          $rootScope.$broadcast('$locationChangeSuccess');\n          $q.flush();\n          expect(obj($stateParams)).toEqual({ term: 'hello' });\n          expect(entered).toBeFalsy();\n        });\n\n        it('updates URL when (triggered by $state transition)', function () {\n          initStateTo(RS);\n          $state.go('.', { term: 'goodbye' });\n          $q.flush();\n          expect(obj($stateParams)).toEqual({ term: 'goodbye' });\n          expect($location.url()).toEqual('/search?term=goodbye');\n          expect(entered).toBeFalsy();\n        });\n      });\n    });\n\n    it('ignores non-applicable state parameters', inject(function ($state, $q) {\n      $state.transitionTo('A', { w00t: 'hi mom!' });\n      $q.flush();\n      expect($state.current).toBe(A);\n    }));\n\n    it('is a no-op when passing the current state and identical parameters', inject(function ($state, $q) {\n      initStateTo(A);\n      const promise = $state.transitionTo(A, {}); // no-op\n      expect(promise).toBeDefined(); // but we still get a valid promise\n      $q.flush();\n      expect(resolvedValue(promise)).toBe(A);\n      expect($state.current).toBe(A);\n      expect(log).toBe('');\n    }));\n\n    it('aborts pending transitions (last call wins)', inject(function ($state, $q) {\n      initStateTo(A);\n      logEvents = true;\n\n      const superseded = $state.transitionTo(B, {});\n      $state.transitionTo(C, {});\n      $q.flush();\n      expect($state.current).toBe(C);\n      expect(resolvedError(superseded)).toBeTruthy();\n    }));\n\n    it('aborts pending transitions even when going back to the current state', inject(function ($state, $q) {\n      initStateTo(A);\n      logEvents = true;\n\n      const superseded = $state.transitionTo(B, {});\n      $state.transitionTo(A, {});\n      $q.flush();\n      expect($state.current).toBe(A);\n      expect(resolvedError(superseded)).toBeTruthy();\n    }));\n\n    it('aborts pending transitions when aborted from callbacks', inject(function ($state, $q) {\n      const superseded = $state.transitionTo('home.redirect');\n      $q.flush();\n      expect($state.current.name).toBe('about');\n    }));\n\n    it('triggers onEnter and onExit callbacks', inject(function ($state, $q) {\n      initStateTo(A);\n      logEnterExit = true;\n      $state.transitionTo(D, {});\n      $q.flush();\n      log += $state.current.name + ';';\n      $state.transitionTo(DD, {});\n      $q.flush();\n      log += $state.current.name + ';';\n      $state.transitionTo(A, {});\n      $q.flush();\n      expect(log).toBe(\n        'A.onExit;' + 'D.onEnter;' + 'D;' + 'DD.onEnter;' + 'DD;' + 'DD.onExit;' + 'D.onExit;' + 'A.onEnter;'\n      );\n    }));\n\n    // test for #3081\n    it('injects resolve values from the exited state into onExit', function (done) {\n      const registry = $uiRouter.stateRegistry;\n      registry.register({\n        name: 'design',\n        url: '/design',\n        resolve: {\n          cc: function () {\n            return 'cc resolve';\n          },\n        },\n        onExit: function (cc, $state$, $transition$) {\n          expect($transition$.to().name).toBe('A');\n          expect($transition$.from().name).toBe('design');\n\n          expect($state$).toBe(registry.get('design'));\n\n          expect(cc).toBe('cc resolve');\n\n          done();\n        },\n      });\n\n      $state.go('design');\n      $q.flush();\n\n      $state.go('A');\n      $q.flush();\n    });\n\n    it(\"doesn't transition to parent state when child has no URL\", inject(function ($state, $q) {\n      $state.transitionTo('about.sidebar');\n      $q.flush();\n      expect($state.current.name).toEqual('about.sidebar');\n    }));\n\n    it('notifies on failed relative state resolution', inject(function ($state, $q) {\n      $state.transitionTo(DD);\n      $q.flush();\n\n      let actual,\n        err = \"Could not resolve '^.Z' from state 'DD'\";\n      $state.transitionTo('^.Z', null, { relative: $state.$current }).catch(function (err) {\n        actual = err;\n      });\n      $q.flush();\n      expect(actual.detail).toEqual(err);\n    }));\n\n    it('uses the templateProvider to get template dynamically', inject(function ($state, $q) {\n      $state.transitionTo('dynamicTemplate', { type: 'Acme' });\n      $q.flush();\n      expect(template).toEqual('AcmeFooTemplate');\n    }));\n\n    it('uses the controllerProvider to get controller dynamically', inject(function ($state, $q) {\n      $state.transitionTo('dynamicController', { type: 'Acme' });\n      $q.flush();\n      expect(ctrlName).toEqual('AcmeController');\n    }));\n\n    it('updates the location #fragment, if specified', inject(function ($state, $q, $location) {\n      // html5mode disabled\n      locationProvider.html5Mode(false);\n      expect(html5Compat(locationProvider.html5Mode())).toBe(false);\n      $state.transitionTo('home.item', { id: 'world', '#': 'frag' });\n      $q.flush();\n      expect($location.url()).toBe('/front/world#frag');\n      expect($location.hash()).toBe('frag');\n\n      // html5mode enabled\n      locationProvider.html5Mode(true);\n      expect(html5Compat(locationProvider.html5Mode())).toBe(true);\n      $state.transitionTo('home.item', { id: 'world', '#': 'frag' });\n      $q.flush();\n      expect($location.url()).toBe('/front/world#frag');\n      expect($location.hash()).toBe('frag');\n    }));\n\n    it('runs a transition when the location #fragment is updated', inject(function (\n      $state,\n      $q,\n      $location,\n      $transitions\n    ) {\n      let transitionCount = 0;\n      $transitions.onSuccess({}, function () {\n        transitionCount++;\n      });\n\n      $state.transitionTo('home.item', { id: 'world', '#': 'frag' });\n      $q.flush();\n      expect($location.hash()).toBe('frag');\n      expect(transitionCount).toBe(1);\n\n      $state.transitionTo('home.item', { id: 'world', '#': 'blarg' });\n      $q.flush();\n      expect($location.hash()).toBe('blarg');\n      expect(transitionCount).toBe(2);\n    }));\n\n    it('injects $transition$ into resolves', inject(function ($state, $q) {\n      $state.transitionTo('home');\n      $q.flush();\n      $state.transitionTo('about');\n      $q.flush();\n      expect(log).toBe('home => about');\n    }));\n  });\n\n  describe('.go()', function () {\n    it('transitions to a relative state', inject(function ($state, $q) {\n      $state.transitionTo('about.person.item', { person: 'bob', id: 5 });\n      $q.flush();\n      $state.go('^.^.sidebar');\n      $q.flush();\n      expect($state.$current.name).toBe('about.sidebar');\n\n      // Transitions to absolute state\n      $state.go('home');\n      $q.flush();\n      expect($state.$current.name).toBe('home');\n\n      // Transition to a child state\n      $state.go('.item', { id: 5 });\n      $q.flush();\n      expect($state.$current.name).toBe('home.item');\n\n      // Transition to grandparent's sibling through root\n      // (Equivalent to absolute transition, assuming the root is known).\n      $state.go('^.^.about');\n      $q.flush();\n      expect($state.$current.name).toBe('about');\n\n      // Transition to grandchild\n      $state.go('.person.item', { person: 'bob', id: 13 });\n      $q.flush();\n      expect($state.$current.name).toBe('about.person.item');\n\n      // Transition to immediate parent\n      $state.go('^');\n      $q.flush();\n      expect($state.$current.name).toBe('about.person');\n\n      // Transition to sibling\n      $state.go('^.sidebar');\n      $q.flush();\n      expect($state.$current.name).toBe('about.sidebar');\n    }));\n\n    it('keeps parameters from common ancestor states', inject(function ($state, $stateParams, $q) {\n      $state.transitionTo('about.person', { person: 'bob' });\n      $q.flush();\n\n      $state.go('.item', { id: '5' });\n      $q.flush();\n\n      expect($state.$current.name).toBe('about.person.item');\n      expect(obj($stateParams)).toEqual({ person: 'bob', id: '5' });\n\n      $state.go('^.^.sidebar');\n      $q.flush();\n      expect($state.$current.name).toBe('about.sidebar');\n    }));\n  });\n\n  describe('.reload()', function () {\n    it('returns a promise for the state transition', inject(function ($state, $q) {\n      let promise = $state.transitionTo(A, {});\n      $q.flush();\n      expect($state.current.name).toBe('A');\n      expect(angular.isFunction(promise.then)).toBeTruthy();\n      expect(promise.transition.to()).toBe(A);\n\n      promise = $state.reload();\n      $q.flush();\n      expect(angular.isFunction(promise.then)).toBeTruthy();\n      expect(promise.transition.to()).toBe(A);\n    }));\n\n    it('should reload the current state with the current parameters', inject(function ($state, $q, $timeout) {\n      $state.transitionTo('resolveTimeout', { foo: 'bar' });\n      $q.flush();\n      expect(log).toBe('');\n\n      $timeout.flush();\n      expect(log).toBe('Success!');\n\n      $state.reload();\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('Success!Success!');\n    }));\n\n    it('should invoke the controller', inject(function ($state, $q, $timeout, $rootScope, $compile) {\n      $compile('<div> <div ui-view/> </div>')($rootScope);\n      $state.transitionTo('resolveTimeout', { foo: 'bar' });\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('Success!controller;');\n\n      $state.reload();\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('Success!controller;Success!controller;');\n    }));\n\n    it('should invoke the controllers by state when given state name', inject(function (\n      $state,\n      $q,\n      $timeout,\n      $rootScope,\n      $compile\n    ) {\n      $compile('<div> <div ui-view/></div>')($rootScope);\n      $state.transitionTo('logA.logB.logC');\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n\n      log = '';\n      $state.reload('logA');\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n\n      log = '';\n      $state.reload('logA.logB');\n      $q.flush();\n      expect(log).toBe('logB;logC;');\n\n      log = '';\n      $state.reload('logA.logB.logC');\n      $q.flush();\n      expect(log).toBe('logC;');\n    }));\n\n    it('should not reload states when passing false', inject(function ($state, $q, $timeout, $rootScope, $compile) {\n      $compile('<div> <div ui-view/></div>')($rootScope);\n      $state.transitionTo('logA.logB.logC');\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n\n      log = '';\n      $state.reload(false);\n      $q.flush();\n      expect(log).toBe('');\n    }));\n\n    it('should reload all states when passing true', inject(function ($state, $q, $timeout, $rootScope, $compile) {\n      $compile('<div> <div ui-view/></div>')($rootScope);\n      $state.transitionTo('logA.logB.logC');\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n\n      log = '';\n      $state.reload(true);\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n    }));\n\n    it('should invoke the controllers by state when given stateObj', inject(function (\n      $state,\n      $q,\n      $timeout,\n      $rootScope,\n      $compile\n    ) {\n      $compile('<div> <div ui-view/></div>')($rootScope);\n      $state.transitionTo('logA.logB.logC');\n\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n\n      log = '';\n      $state.reload($state.current);\n      $q.flush();\n      expect(log).toBe('logC;');\n    }));\n\n    it('should throw an exception for invalid reload state name', inject(function (\n      $state,\n      $q,\n      $timeout,\n      $rootScope,\n      $compile\n    ) {\n      $compile('<div> <div ui-view/></div>')($rootScope);\n      $state.transitionTo('logA.logB.logC');\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n\n      expect(function () {\n        $state.reload('logInvalid');\n      }).toThrowError(\"No such reload state 'logInvalid'\");\n    }));\n\n    it('should throw an exception for invalid reload state object', inject(function (\n      $state,\n      $q,\n      $timeout,\n      $rootScope,\n      $compile\n    ) {\n      $compile('<div> <div ui-view/></div>')($rootScope);\n      $state.transitionTo('logA.logB.logC');\n      $q.flush();\n      expect(log).toBe('logA;logB;logC;');\n\n      const invalidObject = { foo: 'bar' };\n      expect(function () {\n        $state.reload(invalidObject);\n      }).toThrowError('Invalid reload state object');\n\n      expect(function () {\n        $state.reload({ name: 'invalidState' });\n      }).toThrowError(\"No such reload state 'invalidState'\");\n    }));\n  });\n\n  describe('.is()', function () {\n    it('should return true when the current state is passed', inject(function ($state, $q) {\n      $state.transitionTo(A);\n      $q.flush();\n      expect($state.is(A)).toBe(true);\n      expect($state.is(A, null)).toBe(true);\n      expect($state.is('A')).toBe(true);\n      expect($state.is(B)).toBe(false);\n    }));\n\n    it('should return undefined when queried state does not exist', inject(function ($state) {\n      expect($state.is('Z')).toBeUndefined();\n    }));\n\n    it('should return true when the current state is passed with matching parameters', inject(function ($state, $q) {\n      $state.transitionTo(D, { x: 'foo', y: 'bar' });\n      $q.flush();\n      expect($state.is(D)).toBe(true);\n      expect($state.is(D, { x: 'foo', y: 'bar' })).toBe(true);\n      expect($state.is('D', { x: 'foo', y: 'bar' })).toBe(true);\n      expect($state.is(D, { x: 'bar', y: 'foo' })).toBe(false);\n    }));\n\n    it('should work for relative states', inject(function ($state, $q) {\n      const options = { relative: $state.get('about') };\n\n      $state.transitionTo('about.person', { person: 'jane' });\n      $q.flush();\n      expect($state.is('.person', undefined, options)).toBe(true);\n\n      $state.transitionTo('about.person', { person: 'bob' });\n      $q.flush();\n      expect($state.is('.person', { person: 'bob' }, options)).toBe(true);\n      expect($state.is('.person', { person: 'john' }, options)).toBe(false);\n\n      options.relative = $state.get('about.person.item');\n      expect($state.is('^', undefined, options)).toBe(true);\n    }));\n  });\n\n  describe('.includes()', function () {\n    it('should return true when the current state is passed', inject(function ($state, $q) {\n      $state.transitionTo(A);\n      $q.flush();\n      expect($state.includes(A)).toBe(true);\n      expect($state.includes('A')).toBe(true);\n      expect($state.includes(B)).toBe(false);\n    }));\n\n    it(\"should return true when the current state's parent is passed\", inject(function ($state, $q) {\n      $state.transitionTo('about.person.item', { person: 'bob', id: 5 });\n      $q.flush();\n      expect($state.includes('about')).toBe(true);\n      expect($state.includes('about.person')).toBe(true);\n      expect($state.includes('about.sidebar')).toBe(false);\n    }));\n\n    it('should return undefined when queried state does not exist', inject(function ($state) {\n      expect($state.includes('Z')).toBeUndefined();\n    }));\n\n    it('should return true when the current state is passed with partial matching parameters', inject(function (\n      $state,\n      $q\n    ) {\n      $state.transitionTo(D, { x: 'foo', y: 'bar' });\n      $q.flush();\n      expect($state.includes(D, { x: 'foo' })).toBe(true);\n      expect($state.includes(D, { y: 'bar' })).toBe(true);\n      expect($state.includes('D', { x: 'foo' })).toBe(true);\n      expect($state.includes(D, { y: 'foo' })).toBe(false);\n    }));\n\n    it(\"should return true when the current state is passed with partial matching parameters from state's parent\", inject(function (\n      $state,\n      $q\n    ) {\n      $state.transitionTo('about.person.item', { person: 'bob', id: 5 });\n      $q.flush();\n      expect($state.includes('about.person', { person: 'bob' })).toBe(true);\n      expect($state.includes('about.person', { person: 'steve' })).toBe(false);\n    }));\n\n    it('should return true when the current state is passed with partial glob patterns', inject(function ($state, $q) {\n      $state.transitionTo('about.person.item', { person: 'bob', id: 5 });\n      $q.flush();\n      expect($state.includes('*.person.*')).toBe(true);\n      expect($state.includes('*.person.**')).toBe(true);\n      expect($state.includes('**.item.*')).toBe(false);\n      expect($state.includes('**.item')).toBe(true);\n      expect($state.includes('**.stuff.*')).toBe(false);\n      expect($state.includes('*.*.*')).toBe(true);\n      expect($state.includes('about.*.*')).toBe(true);\n      expect($state.includes('about.**')).toBe(true);\n      expect($state.includes('about.*.**')).toBe(true);\n      expect($state.includes('*.about.*')).toBe(false);\n      expect($state.includes('about.*.*', { person: 'bob' })).toBe(true);\n      expect($state.includes('about.*.*', { person: 'shawn' })).toBe(false);\n    }));\n\n    it('should work for relative states', inject(function ($state, $q) {\n      $state.transitionTo('about.person.item', { person: 'bob', id: 5 });\n      $q.flush();\n\n      expect($state.includes('.person', undefined, { relative: 'about' })).toBe(true);\n      expect($state.includes('.person', null, { relative: 'about' })).toBe(true);\n\n      expect($state.includes('^', undefined, { relative: $state.get('about.person.item') })).toBe(true);\n\n      expect($state.includes('.person', { person: 'bob' }, { relative: $state.get('about') })).toBe(true);\n      expect($state.includes('.person', { person: 'steve' }, { relative: $state.get('about') })).toBe(false);\n    }));\n  });\n\n  describe('.current', function () {\n    it('is always defined', inject(function ($state) {\n      expect($state.current).toBeDefined();\n    }));\n\n    it('updates asynchronously as the transitionTo() promise is resolved', inject(function ($state, $q) {\n      const trans = $state.transitionTo(A, {});\n      expect($state.current).not.toBe(A);\n      $q.flush();\n      expect($state.current).toBe(A);\n    }));\n  });\n\n  describe('$current', function () {\n    it('is always defined', inject(function ($state) {\n      expect($state.$current).toBeDefined();\n    }));\n\n    it('wraps the raw state object', inject(function ($state) {\n      initStateTo(A);\n      expect($state.$current.data).toBe(A.data); // 'data' is reserved for app use\n    }));\n  });\n\n  describe('.params', function () {\n    it('is always defined', inject(function ($state) {\n      expect(obj($state.params)).toBeDefined();\n      expect(angular.isObject($state.params)).toBe(true);\n    }));\n\n    it('contains the parameter values for the current state', inject(function ($state, $q) {\n      initStateTo(D, { x: 'x value', z: 'invalid value' });\n      expect(obj($state.params)).toEqual({ x: 'x value', y: null });\n    }));\n  });\n\n  describe('.href()', function () {\n    it('aborts on un-navigable states', inject(function ($state) {\n      expect($state.href('A')).toBeNull();\n      expect($state.href('about.sidebar', null, { lossy: false })).toBeNull();\n    }));\n\n    it('generates a parent state URL when lossy is true', inject(function ($state) {\n      expect($state.href('about.sidebar', null, { lossy: true })).toEqual('#/about');\n    }));\n\n    it('generates a URL without parameters', inject(function ($state) {\n      expect($state.href('home')).toEqual('#/');\n      expect($state.href('about', {})).toEqual('#/about');\n      expect($state.href('about', { foo: 'bar' })).toEqual('#/about');\n    }));\n\n    it('generates a URL with parameters', inject(function ($state) {\n      expect($state.href('about.person', { person: 'bob' })).toEqual('#/about/bob');\n      expect($state.href('about.person.item', { person: 'bob', id: null })).toEqual('#/about/bob/');\n    }));\n\n    it('inherit url parameters from current url', inject(function ($state) {\n      initStateTo($state.get('root'), { param1: 1 });\n      expect($state.href('root', {}, {})).toEqual('#/root?param1=1');\n      expect($state.href('root', {}, { inherit: false })).toEqual('#/root');\n      expect($state.href('root', {}, { inherit: true })).toEqual('#/root?param1=1');\n    }));\n\n    describe('generates an absolute url', () => {\n      describe('when html5mode is false', () => {\n        it('and absolute is true', inject(function ($state, $window) {\n          const pathname = $window.location.pathname;\n          $window.history.replaceState(null, '', '/');\n          expect($window.location.pathname).toBe('/');\n          expect($state.href('about.sidebar', null, { absolute: true })).toEqual('http://server/#/about');\n          $window.history.replaceState(null, '', pathname);\n        }));\n\n        it('and absolute is true and a base tag is present', inject(function ($state, $window, $browser) {\n          spyOn($browser, 'baseHref').and.returnValue('/nested/path');\n          expect($state.href('about.sidebar', null, { absolute: true })).toEqual('http://server/nested/path#/about');\n        }));\n\n        it('and absolute is true and the app is served from a nested document root', inject(function (\n          $state,\n          $window,\n          $browser\n        ) {\n          const pathname = $window.location.pathname;\n          $window.history.replaceState(null, 'nested path', '/nested/path');\n          expect($window.location.pathname).toBe('/nested/path');\n          spyOn($browser, 'baseHref').and.returnValue(null);\n          expect($state.href('about.sidebar', null, { absolute: true })).toEqual('http://server/nested/path#/about');\n          $window.history.replaceState(null, '', pathname);\n        }));\n      });\n\n      it('when html5Mode is true', inject(function ($state) {\n        locationProvider.html5Mode(true);\n        expect($state.href('about.sidebar', null, { absolute: true })).toEqual('http://server/about');\n      }));\n    });\n\n    it('respects $locationProvider.hashPrefix()', inject(function ($state) {\n      locationProvider.hashPrefix('!');\n      expect($state.href('home')).toEqual('#!/');\n    }));\n\n    it('generates urls with unsquashable default params', inject(function ($state) {\n      expect($state.href('ISS2101')).toEqual('#/2101/qux');\n    }));\n\n    describe('when $browser.baseHref() exists', function () {\n      beforeEach(inject(function ($browser) {\n        spyOn($uiRouter.locationConfig, 'baseHref').and.callFake(function () {\n          return '/base/';\n        });\n      }));\n\n      it('does not prepend relative urls', inject(function ($state) {\n        expect($state.href('home')).toEqual('#/');\n      }));\n\n      it('prepends absolute urls', inject(function ($state) {\n        expect($state.href('home', null, { absolute: true })).toEqual('http://server/base/#/');\n      }));\n\n      it('prepends relative and absolute urls in html5Mode', inject(function ($state) {\n        locationProvider.html5Mode(true);\n        expect($state.href('home')).toEqual('/base/');\n        expect($state.href('home', null, { absolute: true })).toEqual('http://server/base/');\n      }));\n    });\n  });\n\n  describe('.get()', function () {\n    it(\"should return the state's config\", inject(function ($state) {\n      expect($state.get('home').url).toBe('/');\n      expect($state.get('home.item').url).toBe('front/:id');\n      expect($state.get('A')).toBe(A);\n      expect($state.get('Z')).toBeNull();\n    }));\n\n    it(\"should return all of the state's config\", inject(function ($state) {\n      const list = $state.get().sort((a, b) => a.name.localeCompare(b.name));\n      const names = [\n        '',\n        'A',\n        'B',\n        'C',\n        'D',\n        'DD',\n        'DDDD',\n        'E',\n        'F',\n        'H',\n        'HH',\n        'HHH',\n        'ISS2101',\n        'OPT',\n        'OPT.OPT2',\n        'RS',\n        'URLLESS',\n        'about',\n        'about.person',\n        'about.person.item',\n        'about.sidebar',\n        'about.sidebar.item',\n        'badParam',\n        'badParam2',\n        'dynamicController',\n        'dynamicTemplate',\n        'first',\n        'home',\n        'home.item',\n        'home.redirect',\n        'json',\n        'logA',\n        'logA.logB',\n        'logA.logB.logC',\n        'resolveFail',\n        'resolveTimeout',\n        'root',\n        'root.sub1',\n        'root.sub2',\n        'second',\n      ];\n\n      expect(\n        list\n          .map(function (state) {\n            return state.name;\n          })\n          .sort()\n      ).toEqual(names.sort());\n    }));\n\n    it('should work for relative states', inject(function ($state) {\n      const about = $state.get('about');\n\n      const person = $state.get('.person', about);\n      expect(person.url).toBe('/:person');\n      expect($state.get('^', 'about.person').url).toBe('/about');\n\n      const item = $state.get('.person.item', about);\n      expect(item.url).toBe('/:id');\n      expect($state.get('^.^', item).url).toBe('/about');\n    }));\n\n    it('should return undefined on invalid state query', inject(function ($state) {\n      expect($state.get(null)).toBeNull();\n      expect($state.get(false)).toBeNull();\n      expect($state.get(undefined)).toBeNull();\n    }));\n  });\n\n  describe('optional parameters', function () {\n    it('should be populated during transition, if unspecified', inject(function ($state, $transitions, $q) {\n      let stateParams;\n      $transitions.onEnter({ entering: 'OPT' }, function (trans) {\n        stateParams = trans.params();\n      });\n      $state.go('OPT');\n      $q.flush();\n      expect($state.current.name).toBe('OPT');\n      expect(obj($state.params)).toEqual({ param: '100' });\n      expect(obj(stateParams)).toEqual({ param: '100' });\n    }));\n\n    it('should allow null default value for non-url params', inject(function ($state, $q) {\n      $state.go('D');\n      $q.flush();\n      expect($state.current.name).toBe('D');\n      expect(obj($state.params)).toEqual({ x: null, y: null });\n    }));\n\n    it('should allow falsy default values for non-url params', inject(function ($state, $q) {\n      $state.go('F');\n      $q.flush();\n      expect($state.current.name).toBe('F');\n      expect(obj($state.params)).toEqual({ a: '', b: false, c: 0, d: undefined, e: -1 });\n    }));\n\n    it('should allow arbitrary objects to pass for non-url params', inject(function ($state, $q) {\n      $state.go('D', { x: 100, y: { foo: 'bar' } });\n      $q.flush();\n      expect($state.current.name).toBe('D');\n      expect(obj($state.params)).toEqual({ x: 100, y: { foo: 'bar' } });\n    }));\n\n    it('should be populated during primary transition, if unspecified', inject(function ($state, $transitions, $q) {\n      let count = 0;\n      $transitions.onEnter({ entering: 'OPT' }, function () {\n        count++;\n      });\n      $state.go('OPT');\n      $q.flush();\n      expect($state.current.name).toBe('OPT');\n      expect(obj($state.params)).toEqual({ param: '100' });\n      expect(count).toEqual(1);\n    }));\n\n    it('should allow mixed URL and config params', inject(function ($state, $transitions, $q) {\n      let count = 0;\n      $transitions.onEnter({ entering: 'OPT' }, function () {\n        count++;\n      });\n      $transitions.onEnter({ entering: 'OPT.OPT2' }, function () {\n        count++;\n      });\n      $state.go('OPT');\n      $q.flush();\n      expect($state.current.name).toBe('OPT');\n      expect(obj($state.params)).toEqual({ param: '100' });\n      expect(count).toEqual(1);\n\n      $state.go('OPT.OPT2', { param2: 200 });\n      $q.flush();\n      expect($state.current.name).toBe('OPT.OPT2');\n      expect(obj($state.params)).toEqual({ param: '100', param2: '200', param3: '300', param4: '400' });\n      expect(count).toEqual(2);\n    }));\n  });\n\n  // TODO: Enforce by default in next major release (1.0.0)\n  describe('non-optional parameters', function () {\n    it('should cause transition failure, when unspecified.', inject(function (\n      $state,\n      $transitions,\n      $q,\n      $exceptionHandler\n    ) {\n      $exceptionHandler.disabled = true;\n\n      let count = 0;\n      $transitions.onEnter({ entering: 'OPT' }, function () {\n        count++;\n      });\n      $transitions.onEnter({ entering: 'OPT.OPT2' }, function () {\n        count++;\n      });\n      $state.go('OPT');\n      $q.flush();\n      expect($state.current.name).toBe('OPT');\n      expect(obj($state.params)).toEqual({ param: '100' });\n      expect(count).toEqual(1);\n\n      $state.go('OPT.OPT2'); // no, because missing non-optional param2\n      $q.flush();\n      expect($state.current.name).toBe('OPT');\n      expect(obj($state.params)).toEqual({ param: '100' });\n      expect(count).toEqual(1);\n    }));\n  });\n\n  describe('url handling', function () {\n    it('should transition to the same state with different parameters', inject(function (\n      $state,\n      $rootScope,\n      $location\n    ) {\n      $location.path('/about/bob');\n      $rootScope.$broadcast('$locationChangeSuccess');\n      $rootScope.$apply();\n      expect(obj($state.params)).toEqual({ person: 'bob' });\n      expect($state.current.name).toBe('about.person');\n\n      $location.path('/about/larry');\n      $rootScope.$broadcast('$locationChangeSuccess');\n      $rootScope.$apply();\n      expect(obj($state.params)).toEqual({ person: 'larry' });\n      expect($state.current.name).toBe('about.person');\n    }));\n\n    it('preserve hash', inject(function ($state, $rootScope, $location) {\n      $location.path('/about/bob');\n      $location.hash('frag');\n      $rootScope.$broadcast('$locationChangeSuccess');\n      $rootScope.$apply();\n      expect(extend({}, $state.params)).toEqual({ '#': 'frag', person: 'bob' });\n      expect($state.current.name).toBe('about.person');\n      expect($location.path()).toBe('/about/bob');\n      expect($location.hash()).toBe('frag');\n    }));\n\n    it('should correctly handle absolute urls', inject(function ($state, $rootScope, $location) {\n      $location.path('/first/subpath');\n      $rootScope.$broadcast('$locationChangeSuccess');\n      $rootScope.$apply();\n      expect($state.current.name).toBe('first');\n\n      $state.transitionTo('second');\n      $rootScope.$apply();\n      expect($state.current.name).toBe('second');\n      expect($location.path()).toBe('/second');\n    }));\n\n    it('should ignore bad urls', inject(function ($state, $rootScope, $location) {\n      $location.path('/first/second');\n      $rootScope.$broadcast('$locationChangeSuccess');\n      $rootScope.$apply();\n      expect($state.current.name).toBe('');\n    }));\n\n    // Tests for issue #2339\n    describe('slashes in parameter values', function () {\n      let $rootScope, $state, $compile;\n      beforeEach(function () {\n        $stateProvider.state('myState', {\n          template: 'myState',\n          url: '/my-state?:previous',\n          controller: function () {\n            log += 'myController;';\n          },\n        });\n\n        inject(function (_$rootScope_, _$state_, _$compile_) {\n          $rootScope = _$rootScope_;\n          $state = _$state_;\n          $compile = _$compile_;\n        });\n        spyOn($state, 'go').and.callThrough();\n        spyOn($state, 'transitionTo').and.callThrough();\n        $compile('<div><div ui-view/></div>')($rootScope);\n        log = '';\n      });\n\n      describe('with no \"/\" in the params', function () {\n        beforeEach(function () {\n          $state.go('myState', { previous: 'last' });\n          $rootScope.$digest();\n        });\n        it('should call $state.go once', function () {\n          expect($state.go.calls.count()).toBe(1);\n        });\n        it('should call $state.transitionTo once', function () {\n          expect($state.transitionTo.calls.count()).toBe(1);\n        });\n        it('should call myController once', function () {\n          expect(log).toBe('myController;');\n        });\n      });\n\n      describe('with a \"/\" in the params', function () {\n        beforeEach(function () {\n          $state.go('myState', { previous: '/last' });\n          $rootScope.$digest();\n        });\n        it('should call $state.go once', function () {\n          expect($state.go.calls.count()).toBe(1);\n        });\n        it('should call $state.transitionTo once', function () {\n          expect($state.transitionTo.calls.count()).toBe(1);\n        });\n        it('should call myController once', function () {\n          expect(log).toBe('myController;');\n        });\n      });\n\n      describe('with an encoded \"/\" in the params', function () {\n        beforeEach(function () {\n          $state.go('myState', { previous: encodeURIComponent('/last') });\n          $rootScope.$digest();\n        });\n        it('should call $state.go once', function () {\n          expect($state.go.calls.count()).toBe(1);\n        });\n        it('should call $state.transitionTo once', function () {\n          expect($state.transitionTo.calls.count()).toBe(1);\n        });\n        it('should call myController once', function () {\n          expect(log).toBe('myController;');\n        });\n      });\n    });\n\n    describe('typed parameter handling', function () {\n      let checkStateUrl;\n      const nov15 = new Date(2014, 10, 15);\n\n      const defaults = {\n        p1: ['defaultValue'],\n        p2: nov15,\n        nonurl: null,\n      };\n\n      const substateDefaults = extend(\n        {\n          'p3[]': ['a'],\n          p4: null,\n        },\n        defaults\n      );\n\n      beforeEach(function () {\n        $stateProvider.state({\n          name: 'types',\n          url: '/types/{p1:string}/{p2:date}',\n          params: {\n            p1: { value: defaults.p1, array: true },\n            p2: defaults.p2,\n            nonurl: defaults.nonurl,\n          },\n        });\n\n        $stateProvider.state({\n          name: 'types.substate',\n          url: '/sub/{p3[]}/{p4:json}?{p5:bool}',\n          params: {\n            'p3[]': substateDefaults['p3[]'],\n            p4: substateDefaults.p4,\n          },\n        });\n      });\n\n      beforeEach(inject(function ($state, $location, $q, $rootScope) {\n        function _check_(state, url, params, defaults, nonurlparams) {\n          $state.go(state, extend({}, nonurlparams, params));\n          $q.flush();\n\n          expect($state.current.name).toBe(state.name || state); // allow object\n          expect(obj($state.params)).toEqual(extend({}, defaults, params, nonurlparams));\n          expect($location.url()).toBe(url);\n\n          initStateTo(A);\n\n          $location.url(url);\n          $rootScope.$broadcast('$locationChangeSuccess');\n          $q.flush();\n\n          expect($state.current.name).toBe(state.name || state); // allow object\n          expect(obj($state.params)).toEqual(extend({}, defaults, params));\n          expect($location.url()).toBe(url);\n        }\n        checkStateUrl = _check_;\n      }));\n\n      it('should initialize parameters without a hacky empty test', inject(function ($urlMatcherFactory, $state) {\n        new UrlMatcher('', null, null, null);\n      }));\n\n      it('should ignore bad url parameters', inject(function ($state, $rootScope, $location, $urlMatcherFactory) {\n        $location.path('/bad/5');\n        $rootScope.$broadcast('$locationChangeSuccess');\n        $rootScope.$apply();\n        expect($state.current.name).toBe('badParam');\n\n        $state.transitionTo('about');\n        $rootScope.$apply();\n        expect($state.current.name).toBe('about');\n\n        $location.path('/bad/foo');\n        $rootScope.$broadcast('$locationChangeSuccess');\n        $rootScope.$apply();\n        expect($state.current.name).toBe('about');\n      }));\n\n      it('should ignore bad state parameters', inject(function (\n        $state,\n        $rootScope,\n        $location,\n        $stateParams,\n        $exceptionHandler\n      ) {\n        $exceptionHandler.disabled = true;\n\n        $state.go('badParam', { param: 5 });\n        $rootScope.$apply();\n        expect($state.current.name).toBe('badParam');\n        expect(obj($stateParams)).toEqual({ param: 5 });\n\n        $state.go('badParam2', { param: '12345' }); // must be 5 digits\n        $rootScope.$apply();\n        expect($state.current.name).toBe('badParam2');\n\n        $state.go('about');\n        $rootScope.$apply();\n        expect($state.current.name).toBe('about');\n\n        $state.go('badParam', { param: 'foo' });\n        $rootScope.$apply();\n        expect($state.current.name).toBe('about');\n\n        $state.go('badParam2', { param: '1234' }); // must be 5 digits\n        $rootScope.$apply();\n        expect($state.current.name).toBe('about');\n      }));\n\n      // test for https://github.com/ui-router/core/issues/74\n      it('should allow param objects containing $scope', inject(function ($state, $q, $rootScope, $transitions) {\n        const errorhandler = jasmine.createSpy('errorhandler');\n        $state.defaultErrorHandler(errorhandler);\n\n        $state.go('types', { nonurl: { errorscope: $rootScope } });\n        $q.flush();\n\n        expect(errorhandler).not.toHaveBeenCalled();\n        expect($state.params.nonurl && $state.params.nonurl.errorscope).toBe($rootScope);\n      }));\n\n      it('should map default param values to/from the $location.url() and $stateParams', function () {\n        checkStateUrl('types', '/types/defaultValue/2014-11-15', {}, defaults);\n      });\n\n      it('should combine and map params and default param values to/from the $location.url() and $stateParams, except for nonurl params', function () {\n        const params = { p1: ['foo'] };\n        const nonurl = { nonurl: { foo: 'bar' } };\n        checkStateUrl('types', '/types/foo/2014-11-15', params, defaults, nonurl);\n      });\n\n      it('should map json param values to/from the $location.url() and $stateParams', function () {\n        const params = { p4: { baz: 'qux' } };\n        checkStateUrl(\n          'types.substate',\n          '/types/defaultValue/2014-11-15/sub/a/%7B%22baz%22:%22qux%22%7D',\n          params,\n          substateDefaults\n        );\n      });\n\n      it('should combine and map array default param values and normal param values to/from the $location.url() and $stateParams', function () {\n        const params = { p1: ['foo'], p2: nov15, p4: { baz: 'qux' } };\n        checkStateUrl(\n          'types.substate',\n          '/types/foo/2014-11-15/sub/a/%7B%22baz%22:%22qux%22%7D',\n          params,\n          substateDefaults\n        );\n      });\n\n      it('should map array default param values to/from the $location.url() and $stateParams', function () {\n        checkStateUrl('types.substate', '/types/defaultValue/2014-11-15/sub/a/null', {}, substateDefaults);\n      });\n\n      it('should map multi-value array default param values to/from the $location.url() and $stateParams', function () {\n        const params = { 'p3[]': ['a', 'b'] };\n        const arrayDefaults = extend({}, substateDefaults, params);\n        checkStateUrl('types.substate', '/types/defaultValue/2014-11-15/sub/a-b/null', params, arrayDefaults);\n      });\n\n      it('should map boolean as integers to/from the $location.url() and $stateParams', function () {\n        const params = { p5: true };\n        checkStateUrl('types.substate', '/types/defaultValue/2014-11-15/sub/a/null?p5=1', params, substateDefaults);\n      });\n\n      it('should map all the things to/from the $location.url() and $stateParams', function () {\n        const params = { p1: ['foo'], p4: { baz: 'qux' }, p5: true };\n        checkStateUrl(\n          'types.substate',\n          '/types/foo/2014-11-15/sub/a/%7B%22baz%22:%22qux%22%7D?p5=1',\n          params,\n          substateDefaults\n        );\n      });\n\n      it('should support non-url parameters', inject(function ($state, $q, $stateParams) {\n        $state.transitionTo(A);\n        $q.flush();\n        expect($state.is(A)).toBe(true);\n\n        $state.go('URLLESS', { myparam: '0' });\n        $q.flush(); // string \"0\" decodes to 0\n        expect($state.current.name).toBe('URLLESS');\n        expect($stateParams.myparam).toBe(0);\n\n        $state.go('URLLESS', { myparam: '1' });\n        $q.flush(); // string \"1\" decodes to 1\n        expect($stateParams.myparam).toBe(1);\n      }));\n\n      it('should not transition if a required non-url parameter is missing', inject(function (\n        $state,\n        $q,\n        $exceptionHandler\n      ) {\n        $exceptionHandler.disabled = true;\n\n        $state.transitionTo(A);\n        $q.flush();\n        expect($state.current.name).toBe('A');\n\n        $state.go('URLLESS');\n        $q.flush(); // Missing required parameter; transition fails\n        expect($state.current.name).toBe('A');\n      }));\n\n      it('should not transition if a required non-url parameter is invalid', inject(function (\n        $state,\n        $q,\n        $exceptionHandler\n      ) {\n        $exceptionHandler.disabled = true;\n\n        $state.transitionTo(A);\n        $q.flush();\n        expect($state.current.name).toBe('A');\n\n        $state.go('URLLESS', { myparam: 'somestring' });\n        $q.flush(); // string \"somestring\" is not an int\n        expect($state.current.name).toBe('A');\n      }));\n    });\n\n    it('should revert to last known working url on state change failure', inject(function (\n      $state,\n      $rootScope,\n      $location,\n      $q\n    ) {\n      $state.transitionTo('about');\n      $q.flush();\n\n      $location.path('/resolve-fail');\n      $rootScope.$broadcast('$locationChangeSuccess');\n      $rootScope.$apply();\n\n      expect($state.current.name).toBe('about');\n    }));\n\n    it('should not revert to last known working url on state change failure', inject(function (\n      $state,\n      $rootScope,\n      $location,\n      $q\n    ) {\n      $state.transitionTo('about');\n      $q.flush();\n\n      //$rootScope.$on(\"$stateChangeError\", function(event){\n      //    event.defaultPrevented = true;\n      //});\n\n      $location.path('/resolve-fail');\n      $rootScope.$broadcast('$locationChangeSuccess');\n      $rootScope.$apply();\n\n      expect($location.path()).toBe('/resolve-fail');\n    }));\n\n    it('should replace browser history when \"replace\" enabled', inject(function ($state, $rootScope, $location, $q) {\n      spyOn($uiRouter.locationService, 'url');\n\n      $state.transitionTo('about', {}, { location: 'replace' });\n      $q.flush();\n\n      expect($uiRouter.locationService.url).toHaveBeenCalled();\n      expect($uiRouter.locationService.url.calls.argsFor(0)[1]).toBe(true);\n    }));\n\n    it('should not replace history normally', inject(function ($state, $rootScope, $location, $q) {\n      spyOn($location, 'replace');\n\n      $state.transitionTo('about');\n      $q.flush();\n\n      expect($location.replace).not.toHaveBeenCalled();\n    }));\n  });\n\n  describe('\"data\" property inheritance/override', function () {\n    it(\"should stay immutable for if state doesn't have parent\", inject(function ($state) {\n      initStateTo(H);\n      expect($state.current.name).toEqual('H');\n      expect($state.current.data.propA).toEqual(H.data.propA);\n      expect($state.current.data.propB).toEqual(H.data.propB);\n    }));\n\n    it(\"should be inherited from parent if state doesn't define it\", inject(function ($state) {\n      initStateTo(HH);\n      expect($state.current.name).toEqual('HH');\n      expect($state.current.data.propA).toEqual(H.data.propA);\n      expect($state.current.data.propB).toEqual(H.data.propB);\n    }));\n\n    it('should be overridden/extended if state defines it', inject(function ($state) {\n      initStateTo(HHH);\n      expect($state.current.name).toEqual('HHH');\n      expect($state.current.data.propA).toEqual(HHH.data.propA);\n      expect($state.current.data.propB).toEqual(H.data.propB);\n      expect($state.current.data.hasOwnProperty('propB')).toBe(false);\n      expect($state.current.data.propB).toEqual(HH.data.propB);\n      expect($state.current.data.propC).toEqual(HHH.data.propC);\n    }));\n  });\n\n  describe('substate and stateParams inheritance', function () {\n    it('should inherit the parent param', inject(function ($state, $stateParams, $q) {\n      initStateTo($state.get('root'), { param1: 1 });\n      $state.go('root.sub1', { param2: 2 });\n      $q.flush();\n      expect($state.current.name).toEqual('root.sub1');\n      expect(obj($stateParams)).toEqual({ param1: '1', param2: '2' });\n    }));\n\n    it(\"should not inherit siblings' states\", inject(function ($state, $stateParams, $q) {\n      initStateTo($state.get('root'), { param1: 1 });\n      $state.go('root.sub1', { param2: 2 });\n      $q.flush();\n      expect($state.current.name).toEqual('root.sub1');\n\n      $state.go('root.sub2');\n      $q.flush();\n      expect($state.current.name).toEqual('root.sub2');\n\n      expect(obj($stateParams)).toEqual({ param1: '1', param2: undefined });\n    }));\n  });\n\n  describe('html5Mode compatibility', function () {\n    it('should generate non-hashbang URLs in HTML5 mode', inject(function ($state) {\n      expect($state.href('about.person', { person: 'bob' })).toEqual('#/about/bob');\n      locationProvider.html5Mode(true);\n      expect($state.href('about.person', { person: 'bob' })).toEqual('/about/bob');\n    }));\n  });\n\n  describe('default properties', function () {\n    it('should always have a name', inject(function ($state, $q) {\n      $state.transitionTo(A);\n      $q.flush();\n      expect($state.$current.name).toBe('A');\n      expect($state.$current.toString()).toBe('A');\n    }));\n\n    it('should include itself and parent states', inject(function ($state, $q) {\n      $state.transitionTo(DD);\n      $q.flush();\n      expect($state.$current.includes).toEqual({ '': true, D: true, DD: true });\n    }));\n  });\n\n  describe('template handling', function () {\n    it('should inject $stateParams into templateUrl function', inject(function ($state, $q, $httpBackend) {\n      $httpBackend.expectGET('/templates/foo.html').respond('200');\n      $state.transitionTo('about.sidebar.item', { item: 'foo' });\n      $q.flush();\n      expect(obj(templateParams)).toEqual({ item: 'foo' });\n    }));\n  });\n\n  describe('provider decorators', function () {\n    it('should return built-in decorators', inject(function ($state) {\n      expect($stateProvider.decorator('parent')({ parent: A }).self.name).toBe('A');\n    }));\n\n    it('should allow built-in decorators to be overridden', inject(function ($state, $q) {\n      $stateProvider.decorator('data', function (state) {\n        return angular.extend(state.data || {}, { foo: 'bar' });\n      });\n      $stateProvider.state('AA', { parent: A, data: { baz: 'true' } });\n\n      $state.transitionTo('AA');\n      $q.flush();\n      expect($state.current.data).toEqual({ baz: 'true', foo: 'bar' });\n    }));\n\n    it('should allow new decorators to be added', inject(function ($state, $q) {\n      $stateProvider.decorator('custom', function (state) {\n        return function () {\n          return \"Custom functionality for state '\" + state + \"'\";\n        };\n      });\n      $stateProvider.state('decoratorTest', {});\n\n      $state.transitionTo('decoratorTest');\n      $q.flush();\n      expect($state.$current.custom()).toBe(\"Custom functionality for state 'decoratorTest'\");\n    }));\n\n    it('should allow built-in decorators to be extended', inject(function ($state, $q, $httpBackend) {\n      $stateProvider.decorator('views', function (state, parent) {\n        const result = {};\n\n        const views = parent(state);\n        forEach(views, function (config, name) {\n          result[name] = angular.extend(config, {\n            templateProvider: function () {\n              return 'Template for ' + name;\n            },\n          });\n          delete result[name].template;\n        });\n        return result;\n      });\n\n      $stateProvider.state('viewTest', {\n        views: {\n          'viewA@': { template: '<div/>' },\n          'viewB@': { template: '<div/>' },\n        },\n      });\n\n      $state.transitionTo('viewTest');\n      $q.flush();\n\n      expect($state.$current.views['viewA@'].templateProvider()).toBe('Template for viewA@');\n      expect($state.$current.views['viewB@'].templateProvider()).toBe('Template for viewB@');\n    }));\n\n    it('should invoke multiple decorators, if exist', inject(function ($state, $q, $httpBackend) {\n      const d = { d1: false, d2: false };\n      function decorator1(state, parent) {\n        d.d1 = true;\n        return parent(state);\n      }\n      function decorator2(state, parent) {\n        d.d2 = true;\n        return parent(state);\n      }\n\n      $stateProvider.decorator('parent', decorator1);\n      $stateProvider.decorator('parent', decorator2);\n\n      $stateProvider.state({ name: 'test', parent: A });\n      $state.go('test');\n      $q.flush();\n\n      expect($state.$current.name).toBe('test');\n      expect($state.$current.parent.name).toBe('A');\n      expect(d.d1).toBe(true);\n      expect(d.d2).toBe(true);\n    }));\n\n    it('should allow any decorator to short circuit the chain', inject(function ($state, $q, $httpBackend) {\n      const d = { d1: false, d2: false };\n      function decorator1(state, parent) {\n        d.d1 = true;\n        return parent(state);\n      }\n      function decorator2(state, parent) {\n        d.d2 = true;\n        return {};\n      }\n\n      $stateProvider.decorator('data', decorator1);\n      $stateProvider.decorator('data', decorator2);\n\n      $stateProvider.state({ name: 'test', data: { x: 1 } });\n      $state.go('test');\n      $q.flush();\n\n      expect($state.$current.name).toBe('test');\n      expect($state.$current.data.x).toBeUndefined();\n      expect(d.d1).toBe(false);\n      expect(d.d2).toBe(true);\n    }));\n\n    it('should allow any decorator to modify the return value of the parent', inject(function (\n      $state,\n      $q,\n      $httpBackend\n    ) {\n      const d = { d1: false, d2: false };\n      function decorator1(state, parent) {\n        d.d1 = true;\n        return angular.extend(parent(state), { y: 2 });\n      }\n      function decorator2(state, parent) {\n        d.d2 = true;\n        return angular.extend(parent(state), { z: 3 });\n      }\n\n      $stateProvider.decorator('data', decorator1);\n      $stateProvider.decorator('data', decorator2);\n\n      $stateProvider.state({ name: 'test', data: { x: 1 } });\n      $state.go('test');\n      $q.flush();\n\n      expect($state.$current.name).toBe('test');\n      expect($state.$current.data).toEqual({ x: 1, y: 2, z: 3 });\n      expect(d.d1).toBe(true);\n      expect(d.d2).toBe(true);\n    }));\n  });\n});\n\ndescribe('state queue', function () {\n  angular.module('ui.router.queue.test', ['ui.router.queue.test.dependency']).config(function ($stateProvider) {\n    $stateProvider\n      .state('queue-test-a', {})\n      .state('queue-test-b-child', { parent: 'queue-test-b' })\n      .state('queue-test-b', {});\n  });\n\n  angular.module('ui.router.queue.test.dependency', []).config(function ($stateProvider) {\n    $stateProvider.state('queue-test-a.child', {});\n  });\n\n  const expectedStates = ['', 'queue-test-a', 'queue-test-a.child', 'queue-test-b', 'queue-test-b-child'];\n\n  it('should work across modules', function () {\n    module('ui.router.queue.test', 'ui.router.queue.test.dependency');\n\n    inject(function ($state) {\n      const list = $state.get().sort((a, b) => a.name.localeCompare(b.name));\n      expect(\n        list.map(function (state) {\n          return state.name;\n        })\n      ).toEqual(expectedStates);\n    });\n  });\n\n  it('should work when parent is name string', function () {\n    module('ui.router.queue.test', 'ui.router.queue.test.dependency');\n\n    inject(function ($state) {\n      const list = $state.get().sort((a, b) => a.name.localeCompare(b.name));\n      expect(\n        list.map(function (state) {\n          return state.name;\n        })\n      ).toEqual(expectedStates);\n    });\n  });\n});\n\ndescribe('Targeted Views', function () {\n  let states, scope, $compile, $injector, $q, $state, elem, $stateProvider;\n  beforeEach(\n    module('ui.router', function (_$provide_, _$controllerProvider_, _$stateProvider_) {\n      $stateProvider = _$stateProvider_;\n      states.forEach($stateProvider.state.bind($stateProvider));\n    })\n  );\n\n  beforeEach(inject(function ($rootScope, _$compile_, _$injector_, _$q_, _$state_) {\n    scope = $rootScope.$new();\n    $compile = _$compile_;\n    $injector = _$injector_;\n    $q = _$q_;\n    $state = _$state_;\n    elem = angular.element('<div>');\n    elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n  }));\n\n  states = [\n    { name: 'A', template: \"<div ui-view id='A_default'></div> <div ui-view='named' id='named_A'></div>\" },\n    {\n      name: 'A.a',\n      template: \"<div ui-view id='Aa_default'>mike</div><div ui-view='named2' id='Aa_named2'>initial</div>\",\n    },\n    {\n      name: 'A.a.i',\n      views: {\n        '^.named2': { template: 'A.a.i' },\n        $default: { template: \"<div ui-view id='Aai_default'>asdf</div>\" },\n      },\n    },\n    {\n      name: 'A.a.i.1',\n      views: {\n        '^.^.^.named': { template: 'A.a.i.1' },\n      },\n    },\n    {\n      name: 'A.a.i.2',\n      views: {\n        '!$default': { template: 'rooted!' },\n      },\n    },\n    {\n      name: 'A.a.i.3',\n      views: {\n        '!$default.named': { template: 'fhqwhgads' },\n      },\n    },\n\n    {\n      name: 'A.b',\n      template: \"<div ui-view id='Ab_default'>mike</div><div ui-view='named2' id='Ab_named2'>initial</div>\",\n    },\n    {\n      name: 'A.b.i',\n      views: {\n        'named2@A.b': { template: 'A.b.i' },\n        '': { template: \"<div ui-view id='Abi_default'>asdf</div>\" },\n      },\n    },\n    {\n      name: 'A.b.i.1',\n      views: {\n        'named@A': { template: 'A.b.i.1' },\n      },\n    },\n    {\n      name: 'A.b.i.2',\n      views: {\n        '@': { template: 'rooted!' },\n      },\n    },\n    {\n      name: 'B',\n      views: {\n        $default: { template: \"<ui-view name='named'></ui-view>\" },\n        'named@.': { template: 'Targeted view on own state' },\n      },\n    },\n  ];\n\n  describe('view targeting', function () {\n    it(\"should target the unnamed ui-view in the parent context, when the view's name is '$default'\", inject(function () {\n      $state.go('A.a.i');\n      $q.flush();\n      expect(elem[0].querySelector('#Aa_default').textContent).toBe('asdf');\n    }));\n\n    it(\"should relatively target a ui-view in the grandparent context, when the viewname starts with '^.'\", inject(function () {\n      $state.go('A.a.i');\n      $q.flush();\n      expect(elem[0].querySelector('#Aa_named2').textContent).toBe('A.a.i');\n    }));\n\n    it(\"should relatively target a ui-view in the great-grandparent context, when the viewname starts with '^.^.'\", inject(function () {\n      $state.go('A.a.i.1');\n      $q.flush();\n      expect(elem[0].querySelector('#named_A').textContent).toBe('A.a.i.1');\n    }));\n\n    it(\"should target the root ui-view, when the view's name is '!$default'\", inject(function () {\n      $state.go('A.a.i.2');\n      $q.flush();\n      expect(elem[0].textContent).toBe('rooted!');\n    }));\n\n    it(\"should target a ui-view absolutely using the ui-view's FQN when the view name is preceded by the '!' character\", inject(function () {\n      $state.go('A.a.i.3');\n      $q.flush();\n      expect(elem[0].querySelector('#named_A').textContent).toBe('fhqwhgads');\n    }));\n  });\n\n  describe('with view@context style view targeting', function () {\n    it(\"should target the unnamed ui-view in the parent context, when the view's name is ''\", inject(function () {\n      $state.go('A.b.i');\n      $q.flush();\n      expect(elem[0].querySelector('#Ab_default').textContent).toBe('asdf');\n    }));\n\n    it(\"should target a ui-view named 'named2' at the context named 'A.b' when the view's name is 'named2@A.b'\", inject(function () {\n      $state.go('A.b.i');\n      $q.flush();\n      expect(elem[0].querySelector('#Ab_named2').textContent).toBe('A.b.i');\n    }));\n\n    it(\"should target a ui-view named 'named' at the context named 'A' when the view's name is 'named@A'\", inject(function () {\n      $state.go('A.b.i.1');\n      $q.flush();\n      expect(elem[0].querySelector('#named_A').textContent).toBe('A.b.i.1');\n    }));\n\n    it(\"should target the unnamed ui-view at the root context (named ''), when the view's name is '@'\", inject(function () {\n      $state.go('A.b.i.2');\n      $q.flush();\n      expect(elem[0].textContent).toBe('rooted!');\n    }));\n\n    // Test for https://github.com/ui-router/core/issues/25\n    it(\"should target ui-views on own state when the state anchor is '.' (view name ends with '@.')\", inject(function () {\n      $state.go('B');\n      $q.flush();\n      expect(elem[0].textContent).toBe('Targeted view on own state');\n    }));\n  });\n});\n\ndescribe('.onInvalid()', function () {\n  let $stateProvider;\n  beforeEach(\n    module('ui.router', function (_$provide_, _$controllerProvider_, _$stateProvider_) {\n      $stateProvider = _$stateProvider_;\n      $stateProvider.state('second', { template: 'foo' });\n    })\n  );\n\n  it('should fire when the to-state reference is invalid', inject(function ($state, $transitions, $q) {\n    let ref = null;\n    $stateProvider.onInvalid(function ($to$) {\n      ref = $to$;\n      return false;\n    });\n\n    $state.go('invalid');\n    $q.flush();\n    expect(ref).not.toBeNull();\n    expect(ref.valid()).toBeFalsy();\n  }));\n\n  it('should allow redirection if an ITargetState is returned', inject(function ($state, $transitions, $q) {\n    $stateProvider.onInvalid(function ($to$) {\n      return $state.target('second', $to$.params(), $to$.options());\n    });\n\n    $state.go('invalid');\n    $q.flush();\n    expect($state.current.name).toBe('second');\n  }));\n});\n\ndescribe('exceptions in onEnter', function () {\n  beforeEach(\n    module(function ($stateProvider, $exceptionHandlerProvider) {\n      $exceptionHandlerProvider.mode('log');\n      $stateProvider.state('A', {}).state('onEnterFail', {\n        onEnter: function () {\n          throw new Error('negative onEnter');\n        },\n      });\n    })\n  );\n\n  // Test for #2772\n  it('trigger transition.onError', inject(function ($state, $q, $transitions) {\n    let called;\n    $state.defaultErrorHandler(function () {});\n    $transitions.onError({}, function () {\n      called = true;\n    });\n\n    $state.go('A');\n    $q.flush();\n    expect($state.current.name).toEqual('A');\n\n    $state.transitionTo('onEnterFail');\n    $q.flush();\n\n    expect(called).toBeTruthy();\n    expect($state.current.name).toEqual('A');\n  }));\n});\n\ndescribe('$stateParams', function () {\n  beforeEach(module('ui.router.state'));\n\n  it('should start empty', inject(function ($stateParams) {\n    expect($stateParams.foo).toBeUndefined();\n  }));\n\n  it('should allow setting values on it', inject(function ($stateParams) {\n    $stateParams.foo = 'bar';\n    expect($stateParams.foo).toBeDefined();\n  }));\n\n  it('should be cleared between tests', inject(function ($stateParams) {\n    expect($stateParams.foo).toBeUndefined();\n  }));\n});\n\n// Test for #600, #2238, #2229\ndescribe('otherwise and state redirects', function () {\n  beforeEach(\n    module('ui.router.state.events', function ($stateEventsProvider) {\n      $stateEventsProvider.enable();\n    })\n  );\n\n  beforeEach(\n    module(function ($stateProvider, $urlRouterProvider) {\n      $urlRouterProvider.otherwise('/home');\n      $stateProvider\n        .state('home', { url: '/home', template: 'home' })\n        .state('loginPage', { url: '/login', templateUrl: 'login.html' });\n    })\n  );\n\n  beforeEach(inject(function ($rootScope, $state) {\n    $rootScope.$on('$stateChangeStart', function (event, toState) {\n      if (toState.name !== 'loginPage') {\n        event.preventDefault();\n        $state.go('loginPage', { redirectUrl: toState.name });\n      }\n    });\n  }));\n\n  it('should not go into an infinite loop', inject(function ($location, $rootScope, $state, $urlRouter, $httpBackend) {\n    $state.defaultErrorHandler(function () {});\n    $httpBackend.expectGET('login.html').respond('login page');\n    $location.url('notmatched');\n    $urlRouter.update(true);\n    expect(function () {\n      $rootScope.$digest();\n    }).not.toThrow();\n    expect(function () {\n      $httpBackend.flush();\n    }).not.toThrow();\n    expect($state.current.name).toBe('loginPage');\n  }));\n});\n\ndescribe('transition hook', function () {\n  let log, resolvelog;\n  beforeEach(\n    module(function ($stateProvider, $urlRouterProvider) {\n      log = resolvelog = '';\n      $urlRouterProvider.otherwise('/home');\n      $stateProvider\n        .state('home', {\n          url: '/home',\n          template: 'home <ui-view></ui-view>',\n          controller: function () {\n            log += 'homeCtrl;';\n          },\n          resolve: {\n            foo: function () {\n              resolvelog += 'fooResolve;';\n              return 'foo';\n            },\n          },\n        })\n        .state('home.foo', { url: '/foo', template: 'foo' })\n        .state('loginPage', { url: '/login', template: 'login' });\n    })\n  );\n\n  beforeEach(inject(function ($compile, $rootScope) {\n    const $scope = $rootScope.$new();\n    $compile('<div><ui-view></ui-view></div>')($scope);\n  }));\n\n  // Test for #2455\n  it('redirects from .otherwise() should go to the redirect-to target state and url', inject(function (\n    $transitions,\n    $q,\n    $state,\n    $location\n  ) {\n    $transitions.onBefore({ to: 'home' }, function () {\n      return $state.target('loginPage', {}, { location: true });\n    });\n    $q.flush();\n    expect($state.current.name).toBe('loginPage');\n    expect($location.path()).toBe('/login');\n  }));\n\n  // Test for #2537\n  it('redirects should be able to change option.reload', inject(function ($transitions, $q, $state, $trace) {\n    let count = 0;\n    $q.flush();\n    expect($state.current.name).toBe('home');\n    expect(log).toBe('homeCtrl;');\n\n    $state.go('.');\n    $q.flush();\n    expect(log).toBe('homeCtrl;');\n\n    $transitions.onBefore({ to: 'home' }, function ($transition$) {\n      const options = $transition$.options();\n      if (!options.reload && count++ < 5) {\n        return $state.target($transition$.to(), $transition$.params('to'), extend({}, options, { reload: true }));\n      }\n    });\n\n    $state.go('.');\n    $q.flush();\n\n    expect($state.current.name).toBe('home');\n    expect(log).toBe('homeCtrl;homeCtrl;');\n  }));\n\n  // Test for #2539\n  it('redirects should re-resolve when reloading during a redirect', inject(function (\n    $transitions,\n    $q,\n    $state,\n    $trace\n  ) {\n    let count = 0;\n    $q.flush();\n\n    expect($state.current.name).toBe('home');\n    expect(resolvelog).toBe('fooResolve;');\n\n    $state.go('home.foo');\n    $q.flush();\n    expect(resolvelog).toBe('fooResolve;');\n\n    $transitions.onStart({ to: 'home' }, function ($transition$) {\n      if (!$transition$.options().reload && count++ < 5) {\n        const options = $transition$.options();\n        return $state.target($transition$.to(), $transition$.params('to'), extend({}, options, { reload: true }));\n      }\n    });\n\n    $state.go('home');\n    $q.flush();\n    expect($state.current.name).toBe('home');\n    expect(resolvelog).toBe('fooResolve;fooResolve;');\n  }));\n\n  // Test for #2611\n  it(\"aborts should reset the URL to the prevous state's\", inject(function ($transitions, $q, $state, $location) {\n    $state.defaultErrorHandler(function () {});\n    $q.flush();\n    $transitions.onStart({ to: 'home.foo' }, function () {\n      return false;\n    });\n    $location.path('/home/foo');\n    $q.flush();\n    expect($state.current.name).toBe('home');\n    expect($location.path()).toBe('/home');\n  }));\n});\n"
  },
  {
    "path": "test/templateFactorySpec.ts",
    "content": "import * as angular from 'angular';\nimport { UIRouter } from '@uirouter/core';\n\ndeclare let inject;\n\nconst module = angular['mock'].module;\n\ndescribe('templateFactory', function () {\n  beforeEach(module('ui.router'));\n\n  it('exists', inject(function ($templateFactory) {\n    expect($templateFactory).toBeDefined();\n  }));\n\n  if (angular.version.minor >= 3) {\n    // Post 1.2, there is a $templateRequest and a $sce service\n    describe('should follow $sce policy and', function () {\n      it('accepts relative URLs', inject(function ($templateFactory, $httpBackend, $sce) {\n        $httpBackend.expectGET('views/view.html').respond(200, 'template!');\n        $templateFactory.fromUrl('views/view.html');\n        $httpBackend.flush();\n      }));\n\n      it('rejects untrusted URLs', inject(function ($templateFactory, $httpBackend, $sce) {\n        let error = 'No error thrown';\n        try {\n          $templateFactory.fromUrl('http://evil.com/views/view.html');\n        } catch (e) {\n          error = e.message;\n        }\n        expect(error).toMatch(/sce:insecurl/);\n      }));\n\n      it('accepts explicitly trusted URLs', inject(function ($templateFactory, $httpBackend, $sce) {\n        $httpBackend.expectGET('http://evil.com/views/view.html').respond(200, 'template!');\n        $templateFactory.fromUrl($sce.trustAsResourceUrl('http://evil.com/views/view.html'));\n        $httpBackend.flush();\n      }));\n    });\n  }\n\n  if (angular.version.minor <= 2) {\n    // 1.2 and before will use directly $http\n    it('does not restrict URL loading', inject(function ($templateFactory, $httpBackend) {\n      $httpBackend.expectGET('http://evil.com/views/view.html').respond(200, 'template!');\n      $templateFactory.fromUrl('http://evil.com/views/view.html');\n      $httpBackend.flush();\n\n      $httpBackend.expectGET('data:text/html,foo').respond(200, 'template!');\n      $templateFactory.fromUrl('data:text/html,foo');\n      $httpBackend.flush();\n    }));\n\n    // Behavior not kept in >1.2 with $templateRequest\n    it('should request templates as text/html', inject(function ($templateFactory, $httpBackend) {\n      $httpBackend\n        .expectGET('views/view.html', function (headers) {\n          return headers.Accept === 'text/html';\n        })\n        .respond(200);\n      $templateFactory.fromUrl('views/view.html');\n      $httpBackend.flush();\n    }));\n  }\n\n  describe('templateFactory with forced use of $http service', function () {\n    beforeEach(function () {\n      angular.module('forceHttpInTemplateFactory', []).config(function ($templateFactoryProvider) {\n        $templateFactoryProvider.useHttpService(true);\n      });\n      module('ui.router');\n      module('forceHttpInTemplateFactory');\n    });\n\n    it('does not restrict URL loading', inject(function ($templateFactory, $httpBackend) {\n      $httpBackend.expectGET('http://evil.com/views/view.html').respond(200, 'template!');\n      $templateFactory.fromUrl('http://evil.com/views/view.html');\n      $httpBackend.flush();\n\n      $httpBackend.expectGET('data:text/html,foo').respond(200, 'template!');\n      $templateFactory.fromUrl('data:text/html,foo');\n      $httpBackend.flush();\n    }));\n  });\n\n  if (angular.version.minor >= 5) {\n    describe('component template builder', () => {\n      let router: UIRouter, el, rootScope;\n      const cmp = { template: 'hi' };\n\n      beforeEach(() => {\n        const mod = angular.module('foo', []);\n        mod.component('myComponent', cmp);\n        mod.component('dataComponent', cmp);\n        mod.component('xComponent', cmp);\n      });\n      beforeEach(module('foo'));\n\n      beforeEach(inject(($uiRouter, $compile, $rootScope) => {\n        router = $uiRouter;\n        rootScope = $rootScope;\n        el = $compile(angular.element('<div><ui-view></ui-view></div>'))($rootScope.$new());\n      }));\n\n      it('should not prefix the components dom element with anything', () => {\n        router.stateRegistry.register({ name: 'cmp', component: 'myComponent' });\n        router.stateService.go('cmp');\n        rootScope.$digest();\n        expect(el.html()).toMatch(/\\<my-component/);\n      });\n\n      it('should prefix the components dom element with x- for components named dataFoo', () => {\n        router.stateRegistry.register({ name: 'cmp', component: 'dataComponent' });\n        router.stateService.go('cmp');\n        rootScope.$digest();\n        expect(el.html()).toMatch(/\\<x-data-component/);\n      });\n\n      it('should prefix the components dom element with x- for components named xFoo', () => {\n        router.stateRegistry.register({ name: 'cmp', component: 'xComponent' });\n        router.stateService.go('cmp');\n        rootScope.$digest();\n        expect(el.html()).toMatch(/\\<x-x-component/);\n      });\n    });\n  }\n});\n"
  },
  {
    "path": "test/tsconfig.json",
    "content": "{\n  \"compilerOptions\": {\n    \"emitDecoratorMetadata\": true,\n    \"experimentalDecorators\": true,\n    \"moduleResolution\": \"node\",\n    \"module\": \"commonjs\",\n    \"target\": \"es5\",\n    \"lib\": [\"es6\", \"dom\"],\n    \"allowSyntheticDefaultImports\": true,\n    \"outDir\": \"../.testlib\",\n    \"declaration\": false,\n    \"sourceMap\": false\n  },\n  \"include\": [\"*.ts\"]\n}\n"
  },
  {
    "path": "test/typescript/3.9/index.ts",
    "content": "import { UIRouter } from '@uirouter/angularjs';\nconsole.log(UIRouter);\n"
  },
  {
    "path": "test/typescript/3.9/package.json",
    "content": "{\n  \"description\": \"Test against Typescript 3.9\",\n  \"scripts\": {\n    \"test\": \"tsc\"\n  },\n  \"dependencies\": {\n    \"@types/angular\": \"latest\",\n    \"@uirouter/angularjs\": \"latest\",\n    \"typescript\": \"3.9\"\n  }\n}\n"
  },
  {
    "path": "test/typescript/3.9/tsconfig.json",
    "content": "{\n  \"compilerOptions\": {\n    \"moduleResolution\": \"node\",\n    \"module\": \"commonjs\",\n    \"lib\": [\"es6\", \"dom\"],\n    \"noImplicitAny\": true,\n    \"noEmit\": true,\n    \"target\": \"es5\",\n    \"typeRoots\": [\"node_modules/@types\"]\n  },\n  \"files\": [\"index.ts\"]\n}\n"
  },
  {
    "path": "test/typescript/mktest.sh",
    "content": "#!/usr/bin/env bash\n\nif [[ -z \"$1\" ]] ; then\n  echo \"Specify the typescript version, i.e.:4.0\";\n  echo \"$0 4.0\";\n  exit 1\nfi\n\nif [[ -d \"$1\" ]] ; then\n  echo \"$1 already exists\";\n  exit 2\nfi\n\ncp -Rp template \"$1\";\nsed -e \"s/VERSION/$1/g\" < template/package.json > $1/package.json\njq \".typescript += { \\\"typescript$1\\\": \\\"./test/typescript/$1\\\" }\" < ../../downstream_projects.json > temp.json\nmv temp.json ../../downstream_projects.json\n"
  },
  {
    "path": "test/typescript/template/index.ts",
    "content": "import { UIRouter } from '@uirouter/angularjs';\nconsole.log(UIRouter);\n"
  },
  {
    "path": "test/typescript/template/package.json",
    "content": "{\n  \"description\": \"Test against Typescript VERSION\",\n  \"scripts\": {\n    \"test\": \"tsc\"\n  },\n  \"dependencies\": {\n    \"@types/angular\": \"latest\",\n    \"@uirouter/angularjs\": \"latest\",\n    \"typescript\": \"VERSION\"\n  }\n}\n"
  },
  {
    "path": "test/typescript/template/tsconfig.json",
    "content": "{\n  \"compilerOptions\": {\n    \"moduleResolution\": \"node\",\n    \"module\": \"commonjs\",\n    \"lib\": [\"es6\", \"dom\"],\n    \"noImplicitAny\": true,\n    \"noEmit\": true,\n    \"target\": \"es5\",\n    \"typeRoots\": [\"node_modules/@types\"]\n  },\n  \"files\": [\"index.ts\"]\n}\n"
  },
  {
    "path": "test/urlMatcherFactorySpec.ts",
    "content": "import * as angular from 'angular';\nimport { find, map, prop, UrlMatcher } from '../src/index';\nimport { UIRouter, UrlMatcherFactory, UrlService } from '@uirouter/core';\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\ndescribe('UrlMatcher', function () {\n  let router: UIRouter;\n  let $umf: UrlMatcherFactory;\n  let $url: UrlService;\n\n  beforeEach(inject(function ($uiRouter, $urlMatcherFactory, $urlService) {\n    router = $uiRouter;\n    $umf = $urlMatcherFactory;\n    $url = $urlService;\n  }));\n\n  describe('provider', function () {\n    it('should factory matchers with correct configuration', function () {\n      $umf.caseInsensitive(false);\n      expect($umf.compile('/hello').exec('/HELLO')).toBeNull();\n\n      $umf.caseInsensitive(true);\n      expect($umf.compile('/hello').exec('/HELLO')).toEqual({});\n\n      $umf.strictMode(true);\n      expect($umf.compile('/hello').exec('/hello/')).toBeNull();\n\n      $umf.strictMode(false);\n      expect($umf.compile('/hello').exec('/hello/')).toEqual({});\n    });\n\n    it('should correctly validate UrlMatcher interface', function () {\n      let m = $umf.compile('/');\n      expect($umf.isMatcher(m)).toBe(true);\n\n      m = angular.extend({}, m, { validates: null });\n      expect($umf.isMatcher(m)).toBe(false);\n    });\n  });\n\n  it('should match static URLs', function () {\n    expect($umf.compile('/hello/world').exec('/hello/world')).toEqual({});\n  });\n\n  it('should match static case insensitive URLs', function () {\n    expect($umf.compile('/hello/world', { caseInsensitive: true }).exec('/heLLo/World')).toEqual({});\n  });\n\n  it('should match against the entire path', function () {\n    const matcher = $umf.compile('/hello/world', { strict: true });\n    expect(matcher.exec('/hello/world/')).toBeNull();\n    expect(matcher.exec('/hello/world/suffix')).toBeNull();\n  });\n\n  it('should parse parameter placeholders', function () {\n    const matcher = $umf.compile('/users/:id/details/{type}/{repeat:[0-9]+}?from&to');\n    expect(matcher.parameters().map(prop('id'))).toEqual(['id', 'type', 'repeat', 'from', 'to']);\n  });\n\n  it('should encode and decode duplicate query string values as array', function () {\n    const matcher = $umf.compile('/?foo'),\n      array = { foo: ['bar', 'baz'] };\n    expect(matcher.exec('/', array)).toEqual(array);\n    expect(matcher.format(array)).toBe('/?foo=bar&foo=baz');\n  });\n\n  it('should encode and decode slashes in parameter values as ~2F', function () {\n    const matcher1 = $umf.compile('/:foo');\n\n    expect(matcher1.format({ foo: '/' })).toBe('/~2F');\n    expect(matcher1.format({ foo: '//' })).toBe('/~2F~2F');\n\n    expect(matcher1.exec('/')).toBeTruthy();\n    expect(matcher1.exec('//')).not.toBeTruthy();\n\n    expect(matcher1.exec('/').foo).toBe('');\n    expect(matcher1.exec('/123').foo).toBe('123');\n    expect(matcher1.exec('/~2F').foo).toBe('/');\n    expect(matcher1.exec('/123~2F').foo).toBe('123/');\n\n    // param :foo should match between two slashes\n    const matcher2 = $umf.compile('/:foo/');\n\n    expect(matcher2.exec('/')).not.toBeTruthy();\n    expect(matcher2.exec('//')).toBeTruthy();\n\n    expect(matcher2.exec('//').foo).toBe('');\n    expect(matcher2.exec('/123/').foo).toBe('123');\n    expect(matcher2.exec('/~2F/').foo).toBe('/');\n    expect(matcher2.exec('/123~2F/').foo).toBe('123/');\n  });\n\n  it('should encode and decode tildes in parameter values as ~~', function () {\n    const matcher1 = $umf.compile('/:foo');\n\n    expect(matcher1.format({ foo: 'abc' })).toBe('/abc');\n    expect(matcher1.format({ foo: '~abc' })).toBe('/~~abc');\n    expect(matcher1.format({ foo: '~2F' })).toBe('/~~2F');\n\n    expect(matcher1.exec('/abc').foo).toBe('abc');\n    expect(matcher1.exec('/~~abc').foo).toBe('~abc');\n    expect(matcher1.exec('/~~2F').foo).toBe('~2F');\n  });\n\n  describe('snake-case parameters', function () {\n    it('should match if properly formatted', function () {\n      const matcher = $umf.compile('/users/?from&to&snake-case&snake-case-triple');\n      expect(matcher.parameters().map(prop('id'))).toEqual(['from', 'to', 'snake-case', 'snake-case-triple']);\n    });\n\n    it('should not match if invalid', function () {\n      let err = \"Invalid parameter name '-snake' in pattern '/users/?from&to&-snake'\";\n      expect(function () {\n        $umf.compile('/users/?from&to&-snake');\n      }).toThrowError(err);\n\n      err = \"Invalid parameter name 'snake-' in pattern '/users/?from&to&snake-'\";\n      expect(function () {\n        $umf.compile('/users/?from&to&snake-');\n      }).toThrowError(err);\n    });\n  });\n\n  describe('parameters containing periods', function () {\n    it('should match if properly formatted', function () {\n      const matcher = $umf.compile('/users/?from&to&with.periods&with.periods.also');\n      const params = matcher.parameters().map(function (p) {\n        return p.id;\n      });\n\n      expect(params.sort()).toEqual(['from', 'to', 'with.periods', 'with.periods.also']);\n    });\n\n    it('should not match if invalid', function () {\n      let err = new Error(\"Invalid parameter name '.periods' in pattern '/users/?from&to&.periods'\");\n      expect(function () {\n        $umf.compile('/users/?from&to&.periods');\n      }).toThrow(err);\n\n      err = new Error(\"Invalid parameter name 'periods.' in pattern '/users/?from&to&periods.'\");\n      expect(function () {\n        $umf.compile('/users/?from&to&periods.');\n      }).toThrow(err);\n    });\n  });\n\n  describe('.exec()', function () {\n    it('should capture parameter values', function () {\n      const m = $umf.compile('/users/:id/details/{type}/{repeat:[0-9]+}?from&to', { strict: false });\n      expect(m.exec('/users/123/details//0', {})).toEqual({ id: '123', type: '', repeat: '0' });\n    });\n\n    it('should capture catch-all parameters', function () {\n      const m = $umf.compile('/document/*path');\n      expect(m.exec('/document/a/b/c', {})).toEqual({ path: 'a/b/c' });\n      expect(m.exec('/document/', {})).toEqual({ path: '' });\n    });\n\n    it('should use the optional regexp with curly brace placeholders', function () {\n      const m = $umf.compile('/users/:id/details/{type}/{repeat:[0-9]+}?from&to');\n      expect(m.exec('/users/123/details/what/thisShouldBeDigits', {})).toBeNull();\n    });\n\n    it(\"should not use optional regexp for '/'\", function () {\n      const m = $umf.compile('/{language:(?:fr|en|de)}');\n      expect(m.exec('/', {})).toBeNull();\n    });\n\n    it('should work with empty default value', function () {\n      const m = $umf.compile('/foo/:str', { state: { params: { str: { value: '' } } } });\n      expect(m.exec('/foo/', {})).toEqual({ str: '' });\n    });\n\n    it('should work with empty default value for regex', function () {\n      const m = $umf.compile('/foo/{param:(?:foo|bar|)}', { state: { params: { param: { value: '' } } } });\n      expect(m.exec('/foo/', {})).toEqual({ param: '' });\n    });\n\n    it('should treat the URL as already decoded and does not decode it further', function () {\n      expect($umf.compile('/users/:id').exec('/users/100%25', {})).toEqual({ id: '100%25' });\n    });\n\n    xit('should allow embedded capture groups', function () {\n      const shouldPass = {\n        '/url/{matchedParam:([a-z]+)}/child/{childParam}': '/url/someword/child/childParam',\n        '/url/{matchedParam:([a-z]+)}/child/{childParam}?foo': '/url/someword/child/childParam',\n      };\n\n      angular.forEach(shouldPass, function (url, route) {\n        expect($umf.compile(route).exec(url, {})).toEqual({\n          childParam: 'childParam',\n          matchedParam: 'someword',\n        });\n      });\n    });\n\n    it('should throw on unbalanced capture list', function () {\n      const shouldThrow = {\n        '/url/{matchedParam:([a-z]+)}/child/{childParam}': '/url/someword/child/childParam',\n        '/url/{matchedParam:([a-z]+)}/child/{childParam}?foo': '/url/someword/child/childParam',\n      };\n\n      angular.forEach(shouldThrow, function (url, route) {\n        expect(function () {\n          $umf.compile(route).exec(url, {});\n        }).toThrowError(\"Unbalanced capture group in route '\" + route + \"'\");\n      });\n\n      const shouldPass = {\n        '/url/{matchedParam:[a-z]+}/child/{childParam}': '/url/someword/child/childParam',\n        '/url/{matchedParam:[a-z]+}/child/{childParam}?foo': '/url/someword/child/childParam',\n      };\n\n      angular.forEach(shouldPass, function (url, route) {\n        expect(function () {\n          $umf.compile(route).exec(url, {});\n        }).not.toThrow();\n      });\n    });\n  });\n\n  describe('.format()', function () {\n    it('should reconstitute the URL', function () {\n      const m = $umf.compile('/users/:id/details/{type}/{repeat:[0-9]+}?from'),\n        params = { id: '123', type: 'default', repeat: 444, ignored: 'value', from: '1970' };\n\n      expect(m.format(params)).toEqual('/users/123/details/default/444?from=1970');\n    });\n\n    it('should encode URL parameters', function () {\n      expect($umf.compile('/users/:id').format({ id: '100%' })).toEqual('/users/100%25');\n    });\n\n    it('encodes URL parameters with hashes', function () {\n      const m = $umf.compile('/users/:id#:section');\n      expect(m.format({ id: 'bob', section: 'contact-details' })).toEqual('/users/bob#contact-details');\n    });\n\n    it('should trim trailing slashes when the terminal value is optional', function () {\n      const config = { state: { params: { id: { squash: true, value: '123' } } } },\n        m = $umf.compile('/users/:id', config),\n        params = { id: '123' };\n\n      expect(m.format(params)).toEqual('/users');\n    });\n\n    it('should format query parameters from parent, child, grandchild matchers', function () {\n      const m = $umf.compile('/parent?qParent');\n      const m2 = m.append($umf.compile('/child?qChild'));\n      const m3 = m2.append($umf.compile('/grandchild?qGrandchild'));\n\n      const params = { qParent: 'parent', qChild: 'child', qGrandchild: 'grandchild' };\n      const url = '/parent/child/grandchild?qParent=parent&qChild=child&qGrandchild=grandchild';\n\n      const formatted = m3.format(params);\n      expect(formatted).toBe(url);\n      expect(m3.exec(url.split('?')[0], params)).toEqual(params);\n    });\n  });\n\n  describe('.append()', function () {\n    it('should append matchers', function () {\n      const matcher = $umf.compile('/users/:id/details/{type}?from').append($umf.compile('/{repeat:[0-9]+}?to'));\n      const params = matcher.parameters();\n      expect(params.map(prop('id'))).toEqual(['id', 'type', 'from', 'repeat', 'to']);\n    });\n\n    it('should return a new matcher', function () {\n      const base = $umf.compile('/users/:id/details/{type}?from');\n      const matcher = base.append($umf.compile('/{repeat:[0-9]+}?to'));\n      expect(matcher).not.toBe(base);\n    });\n\n    it('should respect $urlMatcherFactoryProvider.strictMode', function () {\n      let m = $umf.compile('/');\n      $umf.strictMode(false);\n      m = m.append($umf.compile('foo'));\n      expect(m.exec('/foo')).toEqual({});\n      expect(m.exec('/foo/')).toEqual({});\n    });\n\n    it('should respect $urlMatcherFactoryProvider.caseInsensitive', function () {\n      let m = $umf.compile('/');\n      $umf.caseInsensitive(true);\n      m = m.append($umf.compile('foo'));\n      expect(m.exec('/foo')).toEqual({});\n      expect(m.exec('/FOO')).toEqual({});\n    });\n\n    it('should respect $urlMatcherFactoryProvider.caseInsensitive when validating regex params', function () {\n      let m = $umf.compile('/');\n      $umf.caseInsensitive(true);\n      m = m.append($umf.compile('foo/{param:bar}'));\n      expect(m.validates({ param: 'BAR' })).toEqual(true);\n    });\n\n    it('should generate/match params in the proper order', function () {\n      let m = $umf.compile('/foo?queryparam');\n      m = m.append($umf.compile('/bar/:pathparam'));\n      expect(m.exec('/foo/bar/pathval', { queryparam: 'queryval' })).toEqual({\n        pathparam: 'pathval',\n        queryparam: 'queryval',\n      });\n    });\n  });\n\n  describe('multivalue-query-parameters', function () {\n    it('should handle .is() for an array of values', function () {\n      const m = $umf.compile('/foo?{param1:int}'),\n        param = m.parameter('param1');\n      expect(param.type.is([1, 2, 3])).toBe(true);\n      expect(param.type.is([1, '2', 3])).toBe(false);\n    });\n\n    it('should handle .equals() for two arrays of values', function () {\n      const m = $umf.compile('/foo?{param1:int}&{param2:date}'),\n        param1 = m.parameter('param1'),\n        param2 = m.parameter('param2');\n\n      expect(param1.type.equals([1, 2, 3], [1, 2, 3])).toBe(true);\n      expect(param1.type.equals([1, 2, 3], [1, 2])).toBe(false);\n      expect(\n        param2.type.equals(\n          [new Date(2014, 11, 15), new Date(2014, 10, 15)],\n          [new Date(2014, 11, 15), new Date(2014, 10, 15)]\n        )\n      ).toBe(true);\n      expect(\n        param2.type.equals(\n          [new Date(2014, 11, 15), new Date(2014, 9, 15)],\n          [new Date(2014, 11, 15), new Date(2014, 10, 15)]\n        )\n      ).toBe(false);\n    });\n\n    it('should conditionally be wrapped in an array by default', function () {\n      const m = $umf.compile('/foo?param1');\n\n      // empty array [] is treated like \"undefined\"\n      expect(m.format({ param1: undefined })).toBe('/foo');\n      expect(m.format({ param1: [] })).toBe('/foo');\n      expect(m.format({ param1: '' })).toBe('/foo');\n      expect(m.format({ param1: '1' })).toBe('/foo?param1=1');\n      expect(m.format({ param1: ['1'] })).toBe('/foo?param1=1');\n      expect(m.format({ param1: ['1', '2'] })).toBe('/foo?param1=1&param1=2');\n\n      expect(m.exec('/foo')).toEqual({ param1: undefined });\n      expect(m.exec('/foo', {})).toEqual({ param1: undefined });\n      expect(m.exec('/foo', { param1: '' })).toEqual({ param1: undefined });\n      expect(m.exec('/foo', { param1: '1' })).toEqual({ param1: '1' }); // auto unwrap single values\n      expect(m.exec('/foo', { param1: ['1', '2'] })).toEqual({ param1: ['1', '2'] });\n\n      $url.url('/foo');\n      expect(m.exec($url.path(), $url.search())).toEqual({ param1: undefined });\n      $url.url('/foo?param1=bar');\n      expect(m.exec($url.path(), $url.search())).toEqual({ param1: 'bar' }); // auto unwrap\n      $url.url('/foo?param1=');\n      expect(m.exec($url.path(), $url.search())).toEqual({ param1: undefined });\n      $url.url('/foo?param1=bar&param1=baz');\n      if (angular.isArray($url.search()))\n        // conditional for angular 1.0.8\n        expect(m.exec($url.path(), $url.search())).toEqual({ param1: ['bar', 'baz'] });\n\n      expect(m.format({})).toBe('/foo');\n      expect(m.format({ param1: undefined })).toBe('/foo');\n      expect(m.format({ param1: '' })).toBe('/foo');\n      expect(m.format({ param1: 'bar' })).toBe('/foo?param1=bar');\n      expect(m.format({ param1: ['bar'] })).toBe('/foo?param1=bar');\n      expect(m.format({ param1: ['bar', 'baz'] })).toBe('/foo?param1=bar&param1=baz');\n    });\n\n    it('should be wrapped in an array if array: true', function () {\n      const m = $umf.compile('/foo?param1', { state: { params: { param1: { array: true } } } });\n\n      // empty array [] is treated like \"undefined\"\n      expect(m.format({ param1: undefined })).toBe('/foo');\n      expect(m.format({ param1: [] })).toBe('/foo');\n      expect(m.format({ param1: '' })).toBe('/foo');\n      expect(m.format({ param1: '1' })).toBe('/foo?param1=1');\n      expect(m.format({ param1: ['1'] })).toBe('/foo?param1=1');\n      expect(m.format({ param1: ['1', '2'] })).toBe('/foo?param1=1&param1=2');\n\n      expect(m.exec('/foo')).toEqual({ param1: undefined });\n      expect(m.exec('/foo', {})).toEqual({ param1: undefined });\n      expect(m.exec('/foo', { param1: '' })).toEqual({ param1: undefined });\n      expect(m.exec('/foo', { param1: '1' })).toEqual({ param1: ['1'] });\n      expect(m.exec('/foo', { param1: ['1', '2'] })).toEqual({ param1: ['1', '2'] });\n\n      $url.url('/foo');\n      expect(m.exec($url.path(), $url.search())).toEqual({ param1: undefined });\n      $url.url('/foo?param1=');\n      expect(m.exec($url.path(), $url.search())).toEqual({ param1: undefined });\n      $url.url('/foo?param1=bar');\n      expect(m.exec($url.path(), $url.search())).toEqual({ param1: ['bar'] });\n      $url.url('/foo?param1=bar&param1=baz');\n      if (angular.isArray($url.search()))\n        // conditional for angular 1.0.8\n        expect(m.exec($url.path(), $url.search())).toEqual({ param1: ['bar', 'baz'] });\n\n      expect(m.format({})).toBe('/foo');\n      expect(m.format({ param1: undefined })).toBe('/foo');\n      expect(m.format({ param1: '' })).toBe('/foo');\n      expect(m.format({ param1: 'bar' })).toBe('/foo?param1=bar');\n      expect(m.format({ param1: ['bar'] })).toBe('/foo?param1=bar');\n      expect(m.format({ param1: ['bar', 'baz'] })).toBe('/foo?param1=bar&param1=baz');\n    });\n\n    it('should be wrapped in an array if paramname looks like param[]', function () {\n      const m = $umf.compile('/foo?param1[]');\n\n      expect(m.exec('/foo')).toEqual({});\n\n      $url.url('/foo?param1[]=bar');\n      expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': ['bar'] });\n      expect(m.format({ 'param1[]': 'bar' })).toBe('/foo?param1[]=bar');\n      expect(m.format({ 'param1[]': ['bar'] })).toBe('/foo?param1[]=bar');\n\n      $url.url('/foo?param1[]=bar&param1[]=baz');\n      if (angular.isArray($url.search()))\n        // conditional for angular 1.0.8\n        expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': ['bar', 'baz'] });\n      expect(m.format({ 'param1[]': ['bar', 'baz'] })).toBe('/foo?param1[]=bar&param1[]=baz');\n    });\n\n    // Test for issue #2222\n    it('should return default value, if query param is missing.', function () {\n      const m = $umf.compile('/state?param1&param2&param3&param5', {\n        state: {\n          params: {\n            param1: 'value1',\n            param2: { array: true, value: ['value2'] },\n            param3: { array: true, value: [] },\n            param5: {\n              array: true,\n              value: function () {\n                return [];\n              },\n            },\n          },\n        },\n      });\n\n      const expected = {\n        param1: 'value1',\n        param2: ['value2'],\n        param3: [],\n        param5: [],\n      };\n\n      // Parse url to get Param.value()\n      const parsed = m.exec('/state');\n      expect(parsed).toEqual(expected);\n\n      // Pass again through Param.value() for normalization (like transitionTo)\n      const paramDefs = m.parameters();\n      const values = map(parsed, function (val, key) {\n        return find(paramDefs, function (def) {\n          return def.id === key;\n        }).value(val);\n      });\n      expect(values).toEqual(expected);\n    });\n\n    it('should not be wrapped by ui-router into an array if array: false', function () {\n      const m = $umf.compile('/foo?param1', { state: { params: { param1: { array: false } } } });\n\n      expect(m.exec('/foo')).toEqual({});\n\n      $url.url('/foo?param1=bar');\n      expect(m.exec($url.path(), $url.search())).toEqual({ param1: 'bar' });\n      expect(m.format({ param1: 'bar' })).toBe('/foo?param1=bar');\n      expect(m.format({ param1: ['bar'] })).toBe('/foo?param1=bar');\n\n      $url.url('/foo?param1=bar&param1=baz');\n      if (angular.isArray($url.search()))\n        // conditional for angular 1.0.8\n        expect(m.exec($url.path(), $url.search())).toEqual({ param1: 'bar,baz' }); // coerced to string\n      expect(m.format({ param1: ['bar', 'baz'] })).toBe('/foo?param1=bar%2Cbaz'); // coerced to string\n    });\n  });\n\n  describe('multivalue-path-parameters', function () {\n    it('should behave as a single-value by default', function () {\n      const m = $umf.compile('/foo/:param1');\n\n      expect(m.exec('/foo/')).toEqual({ param1: '' });\n\n      expect(m.exec('/foo/bar')).toEqual({ param1: 'bar' });\n      expect(m.format({ param1: 'bar' })).toBe('/foo/bar');\n      expect(m.format({ param1: ['bar', 'baz'] })).toBe('/foo/bar%2Cbaz'); // coerced to string\n    });\n\n    it('should be split on - in url and wrapped in an array if array: true', inject(function ($location) {\n      const m = $umf.compile('/foo/:param1', { state: { params: { param1: { array: true } } } });\n\n      expect(m.exec('/foo/')).toEqual({ param1: undefined });\n      expect(m.exec('/foo/bar')).toEqual({ param1: ['bar'] });\n      $url.url('/foo/bar-baz');\n      expect(m.exec($location.url())).toEqual({ param1: ['bar', 'baz'] });\n\n      expect(m.format({ param1: [] })).toEqual('/foo/');\n      expect(m.format({ param1: ['bar'] })).toEqual('/foo/bar');\n      expect(m.format({ param1: ['bar', 'baz'] })).toEqual('/foo/bar-baz');\n    }));\n\n    it('should behave similar to multi-value query params', function () {\n      const m = $umf.compile('/foo/:param1[]');\n\n      // empty array [] is treated like \"undefined\"\n      expect(m.format({ 'param1[]': undefined })).toBe('/foo/');\n      expect(m.format({ 'param1[]': [] })).toBe('/foo/');\n      expect(m.format({ 'param1[]': '' })).toBe('/foo/');\n      expect(m.format({ 'param1[]': '1' })).toBe('/foo/1');\n      expect(m.format({ 'param1[]': ['1'] })).toBe('/foo/1');\n      expect(m.format({ 'param1[]': ['1', '2'] })).toBe('/foo/1-2');\n\n      expect(m.exec('/foo/')).toEqual({ 'param1[]': undefined });\n      expect(m.exec('/foo/1')).toEqual({ 'param1[]': ['1'] });\n      expect(m.exec('/foo/1-2')).toEqual({ 'param1[]': ['1', '2'] });\n\n      $url.url('/foo/');\n      expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': undefined });\n      $url.url('/foo/bar');\n      expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': ['bar'] });\n      $url.url('/foo/bar-baz');\n      expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': ['bar', 'baz'] });\n\n      expect(m.format({})).toBe('/foo/');\n      expect(m.format({ 'param1[]': undefined })).toBe('/foo/');\n      expect(m.format({ 'param1[]': '' })).toBe('/foo/');\n      expect(m.format({ 'param1[]': 'bar' })).toBe('/foo/bar');\n      expect(m.format({ 'param1[]': ['bar'] })).toBe('/foo/bar');\n      expect(m.format({ 'param1[]': ['bar', 'baz'] })).toBe('/foo/bar-baz');\n    });\n\n    it('should be split on - in url and wrapped in an array if paramname looks like param[]', function () {\n      const m = $umf.compile('/foo/:param1[]');\n\n      expect(m.exec('/foo/')).toEqual({ 'param1[]': undefined });\n      expect(m.exec('/foo/bar')).toEqual({ 'param1[]': ['bar'] });\n      expect(m.exec('/foo/bar-baz')).toEqual({ 'param1[]': ['bar', 'baz'] });\n\n      expect(m.format({ 'param1[]': [] })).toEqual('/foo/');\n      expect(m.format({ 'param1[]': ['bar'] })).toEqual('/foo/bar');\n      expect(m.format({ 'param1[]': ['bar', 'baz'] })).toEqual('/foo/bar-baz');\n    });\n\n    it(\"should allow path param arrays with '-' in the values\", function () {\n      const m = $umf.compile('/foo/:param1[]');\n\n      expect(m.exec('/foo/')).toEqual({ 'param1[]': undefined });\n      expect(m.exec('/foo/bar\\\\-')).toEqual({ 'param1[]': ['bar-'] });\n      expect(m.exec('/foo/bar\\\\--\\\\-baz')).toEqual({ 'param1[]': ['bar-', '-baz'] });\n\n      expect(m.format({ 'param1[]': [] })).toEqual('/foo/');\n      expect(m.format({ 'param1[]': ['bar-'] })).toEqual('/foo/bar%5C%2D');\n      expect(m.format({ 'param1[]': ['bar-', '-baz'] })).toEqual('/foo/bar%5C%2D-%5C%2Dbaz');\n      expect(m.format({ 'param1[]': ['bar-bar-bar-', '-baz-baz-baz'] })).toEqual(\n        '/foo/bar%5C%2Dbar%5C%2Dbar%5C%2D-%5C%2Dbaz%5C%2Dbaz%5C%2Dbaz'\n      );\n\n      // check that we handle $location.url decodes correctly\n      $url.url(m.format({ 'param1[]': ['bar-', '-baz'] }));\n      expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': ['bar-', '-baz'] });\n\n      // check that we handle $location.url decodes correctly for multiple hyphens\n      $url.url(m.format({ 'param1[]': ['bar-bar-bar-', '-baz-baz-baz'] }));\n      expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': ['bar-bar-bar-', '-baz-baz-baz'] });\n\n      // check that pre-encoded values are passed correctly\n      $url.url(m.format({ 'param1[]': ['%2C%20%5C%2C', '-baz'] }));\n      expect(m.exec($url.path(), $url.search())).toEqual({ 'param1[]': ['%2C%20%5C%2C', '-baz'] });\n    });\n  });\n});\n\ndescribe('urlMatcherFactoryProvider', function () {\n  describe('.type()', function () {\n    let $umf;\n    beforeEach(\n      module('ui.router.util', function ($urlMatcherFactoryProvider) {\n        $umf = $urlMatcherFactoryProvider;\n        $urlMatcherFactoryProvider.type('myType', {}, function () {\n          return {\n            decode: function () {\n              return { status: 'decoded' };\n            },\n            is: angular.isObject,\n          };\n        });\n      })\n    );\n\n    it('should handle arrays properly with config-time custom type definitions', inject(function ($stateParams) {\n      const m = $umf.compile('/test?{foo:myType}');\n      expect(m.exec('/test', { foo: '1' })).toEqual({ foo: { status: 'decoded' } });\n      expect(m.exec('/test', { foo: ['1', '2'] })).toEqual({ foo: [{ status: 'decoded' }, { status: 'decoded' }] });\n    }));\n  });\n\n  // TODO: Fix object pollution between tests for urlMatcherConfig\n  afterEach(inject(function ($urlMatcherFactory) {\n    $urlMatcherFactory.caseInsensitive(false);\n  }));\n});\n\ndescribe('urlMatcherFactory', function () {\n  let $umf: UrlMatcherFactory;\n  let $url: UrlService;\n\n  beforeEach(inject(function ($urlMatcherFactory, $urlService) {\n    $umf = $urlMatcherFactory;\n    $url = $urlService;\n  }));\n\n  it('compiles patterns', function () {\n    const matcher = $umf.compile('/hello/world');\n    expect(matcher instanceof UrlMatcher).toBe(true);\n  });\n\n  it('recognizes matchers', function () {\n    expect($umf.isMatcher($umf.compile('/'))).toBe(true);\n\n    const custom = {\n      format: angular.noop,\n      exec: angular.noop,\n      append: angular.noop,\n      isRoot: angular.noop,\n      validates: angular.noop,\n      parameters: angular.noop,\n      parameter: angular.noop,\n      _getDecodedParamValue: angular.noop,\n    };\n    expect($umf.isMatcher(custom)).toBe(true);\n  });\n\n  it('should handle case sensitive URL by default', function () {\n    expect($umf.compile('/hello/world').exec('/heLLo/WORLD')).toBeNull();\n  });\n\n  it('should handle case insensitive URL', function () {\n    $umf.caseInsensitive(true);\n    expect($umf.compile('/hello/world').exec('/heLLo/WORLD')).toEqual({});\n  });\n\n  describe('typed parameters', function () {\n    it('should accept object definitions', function () {\n      const type = { encode: function () {}, decode: function () {} } as any;\n      $umf.type('myType1', type);\n      expect($umf.type('myType1').encode).toBe(type.encode);\n    });\n\n    it('should reject duplicate definitions', function () {\n      $umf.type('myType2', { encode: function () {}, decode: function () {} } as any);\n      expect(function () {\n        $umf.type('myType2', {} as any);\n      }).toThrowError(\"A type named 'myType2' has already been defined.\");\n    });\n\n    it('should accept injected function definitions', inject(function ($stateParams) {\n      $umf.type(\n        'myType3',\n        {} as any,\n        function ($stateParams) {\n          return {\n            decode: function () {\n              return $stateParams;\n            },\n          };\n        } as any\n      );\n      expect($umf.type('myType3').decode()).toBe($stateParams);\n    }));\n\n    it('should accept annotated function definitions', inject(function ($stateParams) {\n      $umf.type(\n        'myAnnotatedType',\n        {} as any,\n        [\n          '$stateParams',\n          function (s) {\n            return {\n              decode: function () {\n                return s;\n              },\n            };\n          },\n        ] as any\n      );\n      expect($umf.type('myAnnotatedType').decode()).toBe($stateParams);\n    }));\n\n    it('should match built-in types', function () {\n      const m = $umf.compile('/{foo:int}/{flag:bool}');\n      expect(m.exec('/1138/1')).toEqual({ foo: 1138, flag: true });\n      expect(m.format({ foo: 5, flag: true })).toBe('/5/1');\n\n      expect(m.exec('/-1138/1')).toEqual({ foo: -1138, flag: true });\n      expect(m.format({ foo: -5, flag: true })).toBe('/-5/1');\n    });\n\n    it('should match built-in types with spaces', function () {\n      const m = $umf.compile('/{foo: int}/{flag:  bool}');\n      expect(m.exec('/1138/1')).toEqual({ foo: 1138, flag: true });\n      expect(m.format({ foo: 5, flag: true })).toBe('/5/1');\n    });\n\n    it('should match types named only in params', function () {\n      const m = $umf.compile('/{foo}/{flag}', {\n        state: {\n          params: {\n            foo: { type: 'int' },\n            flag: { type: 'bool' },\n          },\n        },\n      });\n      expect(m.exec('/1138/1')).toEqual({ foo: 1138, flag: true });\n      expect(m.format({ foo: 5, flag: true })).toBe('/5/1');\n    });\n\n    it('should throw an error if a param type is declared twice', function () {\n      expect(function () {\n        $umf.compile('/{foo:int}', {\n          state: {\n            params: {\n              foo: { type: 'int' },\n            },\n          },\n        });\n      }).toThrow(new Error(\"Param 'foo' has two type configurations.\"));\n    });\n\n    it('should encode/decode dates', function () {\n      const m = $umf.compile('/calendar/{date:date}'),\n        result = m.exec('/calendar/2014-03-26');\n      const date = new Date(2014, 2, 26);\n\n      expect(result.date instanceof Date).toBe(true);\n      expect(result.date.toUTCString()).toEqual(date.toUTCString());\n      expect(m.format({ date: date })).toBe('/calendar/2014-03-26');\n    });\n\n    it('should encode/decode arbitrary objects to json', function () {\n      const m = $umf.compile('/state/{param1:json}/{param2:json}');\n\n      const params = {\n        param1: { foo: 'huh', count: 3 },\n        param2: { foo: 'wha', count: 5 },\n      };\n\n      const json1 = '{\"foo\":\"huh\",\"count\":3}';\n      const json2 = '{\"foo\":\"wha\",\"count\":5}';\n\n      expect(m.format(params)).toBe('/state/' + encodeURIComponent(json1) + '/' + encodeURIComponent(json2));\n      expect(m.exec('/state/' + json1 + '/' + json2)).toEqual(params);\n    });\n\n    it('should not match invalid typed parameter values', function () {\n      const m = $umf.compile('/users/{id:int}');\n\n      expect(m.exec('/users/1138').id).toBe(1138);\n      expect(m.exec('/users/alpha')).toBeNull();\n\n      expect(m.format({ id: 1138 })).toBe('/users/1138');\n      expect(m.format({ id: 'alpha' })).toBeNull();\n    });\n\n    it('should automatically handle multiple search param values', function () {\n      const m = $umf.compile('/foo/{fooid:int}?{bar:int}');\n\n      $url.url('/foo/5?bar=1');\n      expect(m.exec($url.path(), $url.search())).toEqual({ fooid: 5, bar: 1 });\n      expect(m.format({ fooid: 5, bar: 1 })).toEqual('/foo/5?bar=1');\n\n      $url.url('/foo/5?bar=1&bar=2&bar=3');\n      if (angular.isArray($url.search()))\n        // conditional for angular 1.0.8\n        expect(m.exec($url.path(), $url.search())).toEqual({ fooid: 5, bar: [1, 2, 3] });\n      expect(m.format({ fooid: 5, bar: [1, 2, 3] })).toEqual('/foo/5?bar=1&bar=2&bar=3');\n\n      m.format();\n    });\n\n    it('should allow custom types to handle multiple search param values manually', function () {\n      $umf.type('custArray', {\n        encode: function (array) {\n          return array.join('-');\n        },\n        decode: function (val) {\n          return angular.isArray(val) ? val : val.split(/-/);\n        },\n        equals: angular.equals,\n        is: angular.isArray,\n      });\n\n      const m = $umf.compile('/foo?{bar:custArray}', { state: { params: { bar: { array: false } } } });\n\n      $url.url('/foo?bar=fox');\n      expect(m.exec($url.path(), $url.search())).toEqual({ bar: ['fox'] });\n      expect(m.format({ bar: ['fox'] })).toEqual('/foo?bar=fox');\n\n      $url.url('/foo?bar=quick-brown-fox');\n      expect(m.exec($url.path(), $url.search())).toEqual({ bar: ['quick', 'brown', 'fox'] });\n      expect(m.format({ bar: ['quick', 'brown', 'fox'] })).toEqual('/foo?bar=quick-brown-fox');\n    });\n  });\n\n  describe('optional parameters', function () {\n    it('should match with or without values', function () {\n      const m = $umf.compile('/users/{id:int}', {\n        state: {\n          params: { id: { value: null, squash: true } },\n        },\n      });\n      expect(m.exec('/users/1138')).toEqual({ id: 1138 });\n      expect(m.exec('/users1138')).toBeNull();\n      expect(m.exec('/users/').id).toBeNull();\n      expect(m.exec('/users').id).toBeNull();\n    });\n\n    it('should correctly match multiple', function () {\n      const m = $umf.compile('/users/{id:int}/{state:[A-Z]+}', {\n        state: {\n          params: { id: { value: null, squash: true }, state: { value: null, squash: true } },\n        },\n      });\n      expect(m.exec('/users/1138')).toEqual({ id: 1138, state: null });\n      expect(m.exec('/users/1138/NY')).toEqual({ id: 1138, state: 'NY' });\n\n      expect(m.exec('/users/').id).toBeNull();\n      expect(m.exec('/users/').state).toBeNull();\n\n      expect(m.exec('/users').id).toBeNull();\n      expect(m.exec('/users').state).toBeNull();\n\n      expect(m.exec('/users/NY').state).toBe('NY');\n      expect(m.exec('/users/NY').id).toBeNull();\n    });\n\n    it('should correctly format with or without values', function () {\n      const m = $umf.compile('/users/{id:int}', {\n        state: {\n          params: { id: { value: null } },\n        },\n      });\n      expect(m.format()).toBe('/users/');\n      expect(m.format({ id: 1138 })).toBe('/users/1138');\n    });\n\n    it('should correctly format multiple', function () {\n      const m = $umf.compile('/users/{id:int}/{state:[A-Z]+}', {\n        state: {\n          params: { id: { value: null, squash: true }, state: { value: null, squash: true } },\n        },\n      });\n\n      expect(m.format()).toBe('/users');\n      expect(m.format({ id: 1138 })).toBe('/users/1138');\n      expect(m.format({ state: 'NY' })).toBe('/users/NY');\n      expect(m.format({ id: 1138, state: 'NY' })).toBe('/users/1138/NY');\n    });\n\n    it('should match in between static segments', function () {\n      const m = $umf.compile('/users/{user:int}/photos', {\n        state: {\n          params: { user: { value: 5, squash: true } },\n        },\n      });\n      expect(m.exec('/users/photos').user).toBe(5);\n      expect(m.exec('/users/6/photos').user).toBe(6);\n      expect(m.format()).toBe('/users/photos');\n      expect(m.format({ user: 1138 })).toBe('/users/1138/photos');\n    });\n\n    it('should correctly format with an optional followed by a required parameter', function () {\n      const m = $umf.compile('/home/:user/gallery/photos/:photo', {\n        state: {\n          params: {\n            user: { value: null, squash: true },\n            photo: undefined,\n          },\n        },\n      });\n      expect(m.format({ photo: 12 })).toBe('/home/gallery/photos/12');\n      expect(m.format({ user: 1138, photo: 13 })).toBe('/home/1138/gallery/photos/13');\n    });\n\n    describe('default values', function () {\n      it('should populate if not supplied in URL', function () {\n        const m = $umf.compile('/users/{id:int}/{test}', {\n          state: {\n            params: { id: { value: 0, squash: true }, test: { value: 'foo', squash: true } },\n          },\n        });\n        expect(m.exec('/users')).toEqual({ id: 0, test: 'foo' });\n        expect(m.exec('/users/2')).toEqual({ id: 2, test: 'foo' });\n        expect(m.exec('/users/bar')).toEqual({ id: 0, test: 'bar' });\n        expect(m.exec('/users/2/bar')).toEqual({ id: 2, test: 'bar' });\n        expect(m.exec('/users/bar/2')).toBeNull();\n      });\n\n      it('should populate even if the regexp requires 1 or more chars', function () {\n        const m = $umf.compile('/record/{appId}/{recordId:[0-9a-fA-F]{10,24}}', {\n          state: {\n            params: { appId: null, recordId: null },\n          },\n        });\n        expect(m.exec('/record/546a3e4dd273c60780e35df3/')).toEqual({\n          appId: '546a3e4dd273c60780e35df3',\n          recordId: null,\n        });\n      });\n\n      it('should allow shorthand definitions', function () {\n        const m = $umf.compile('/foo/:foo', {\n          state: {\n            params: { foo: 'bar' },\n          },\n        });\n        expect(m.exec('/foo/')).toEqual({ foo: 'bar' });\n      });\n\n      it('should populate query params', function () {\n        const defaults = { order: 'name', limit: 25, page: 1 };\n        const m = $umf.compile('/foo?order&{limit:int}&{page:int}', {\n          state: {\n            params: defaults,\n          },\n        });\n        expect(m.exec('/foo')).toEqual(defaults);\n      });\n\n      it('should allow function-calculated values', function () {\n        function barFn() {\n          return 'Value from bar()';\n        }\n        let m = $umf.compile('/foo/:bar', {\n          state: {\n            params: { bar: barFn },\n          },\n        });\n        expect(m.exec('/foo/').bar).toBe('Value from bar()');\n\n        m = $umf.compile('/foo/:bar', {\n          state: {\n            params: { bar: { value: barFn, squash: true } },\n          },\n        });\n        expect(m.exec('/foo').bar).toBe('Value from bar()');\n\n        m = $umf.compile('/foo?bar', {\n          state: {\n            params: { bar: barFn },\n          },\n        });\n        expect(m.exec('/foo').bar).toBe('Value from bar()');\n      });\n\n      it('should allow injectable functions', inject(function ($stateParams) {\n        const m = $umf.compile('/users/{user:json}', {\n          state: {\n            params: {\n              user: function ($stateParams) {\n                return $stateParams.user;\n              },\n            },\n          },\n        });\n        const user = { name: 'Bob' };\n\n        $stateParams.user = user;\n        expect(m.exec('/users/').user).toBe(user);\n      }));\n\n      xit('should match when used as prefix', function () {\n        const m = $umf.compile('/{lang:[a-z]{2}}/foo', {\n          state: {\n            params: { lang: 'de' },\n          },\n        });\n        expect(m.exec('/de/foo')).toEqual({ lang: 'de' });\n        expect(m.exec('/foo')).toEqual({ lang: 'de' });\n      });\n\n      describe('squash policy', function () {\n        const Session = { username: 'loggedinuser' };\n        function getMatcher(squash) {\n          return $umf.compile('/user/:userid/gallery/:galleryid/photo/:photoid', {\n            state: {\n              params: {\n                userid: {\n                  squash: squash,\n                  value: function () {\n                    return Session.username;\n                  },\n                },\n                galleryid: { squash: squash, value: 'favorites' },\n              },\n            },\n          });\n        }\n\n        it(': true should squash the default value and one slash', inject(function ($stateParams) {\n          const m = getMatcher(true);\n\n          const defaultParams = { userid: 'loggedinuser', galleryid: 'favorites', photoid: '123' };\n          expect(m.exec('/user/gallery/photo/123')).toEqual(defaultParams);\n          expect(m.exec('/user//gallery//photo/123')).toEqual(defaultParams);\n          expect(m.format(defaultParams)).toBe('/user/gallery/photo/123');\n\n          const nonDefaultParams = { userid: 'otheruser', galleryid: 'travel', photoid: '987' };\n          expect(m.exec('/user/otheruser/gallery/travel/photo/987')).toEqual(nonDefaultParams);\n          expect(m.format(nonDefaultParams)).toBe('/user/otheruser/gallery/travel/photo/987');\n        }));\n\n        it(': false should not squash default values', inject(function ($stateParams) {\n          const m = getMatcher(false);\n\n          const defaultParams = { userid: 'loggedinuser', galleryid: 'favorites', photoid: '123' };\n          expect(m.exec('/user/loggedinuser/gallery/favorites/photo/123')).toEqual(defaultParams);\n          expect(m.format(defaultParams)).toBe('/user/loggedinuser/gallery/favorites/photo/123');\n\n          const nonDefaultParams = { userid: 'otheruser', galleryid: 'travel', photoid: '987' };\n          expect(m.exec('/user/otheruser/gallery/travel/photo/987')).toEqual(nonDefaultParams);\n          expect(m.format(nonDefaultParams)).toBe('/user/otheruser/gallery/travel/photo/987');\n        }));\n\n        it(\": '' should squash the default value to an empty string\", inject(function ($stateParams) {\n          const m = getMatcher('');\n\n          const defaultParams = { userid: 'loggedinuser', galleryid: 'favorites', photoid: '123' };\n          expect(m.exec('/user//gallery//photo/123')).toEqual(defaultParams);\n          expect(m.format(defaultParams)).toBe('/user//gallery//photo/123');\n\n          const nonDefaultParams = { userid: 'otheruser', galleryid: 'travel', photoid: '987' };\n          expect(m.exec('/user/otheruser/gallery/travel/photo/987')).toEqual(nonDefaultParams);\n          expect(m.format(nonDefaultParams)).toBe('/user/otheruser/gallery/travel/photo/987');\n        }));\n\n        it(\": '~' should squash the default value and replace it with '~'\", inject(function ($stateParams) {\n          const m = getMatcher('~');\n\n          const defaultParams = { userid: 'loggedinuser', galleryid: 'favorites', photoid: '123' };\n          expect(m.exec('/user//gallery//photo/123')).toEqual(defaultParams);\n          expect(m.exec('/user/~/gallery/~/photo/123')).toEqual(defaultParams);\n          expect(m.format(defaultParams)).toBe('/user/~/gallery/~/photo/123');\n\n          const nonDefaultParams = { userid: 'otheruser', galleryid: 'travel', photoid: '987' };\n          expect(m.exec('/user/otheruser/gallery/travel/photo/987')).toEqual(nonDefaultParams);\n          expect(m.format(nonDefaultParams)).toBe('/user/otheruser/gallery/travel/photo/987');\n        }));\n      });\n    });\n  });\n\n  describe('strict matching', function () {\n    it('should match with or without trailing slash', function () {\n      const m = $umf.compile('/users', { strict: false });\n      expect(m.exec('/users')).toEqual({});\n      expect(m.exec('/users/')).toEqual({});\n    });\n\n    it('should not match multiple trailing slashes', function () {\n      const m = $umf.compile('/users', { strict: false });\n      expect(m.exec('/users//')).toBeNull();\n    });\n\n    it('should match when defined with parameters', function () {\n      const m = $umf.compile('/users/{name}', {\n        strict: false,\n        state: {\n          params: {\n            name: { value: null },\n          },\n        },\n      });\n      expect(m.exec('/users/')).toEqual({ name: null });\n      expect(m.exec('/users/bob')).toEqual({ name: 'bob' });\n      expect(m.exec('/users/bob/')).toEqual({ name: 'bob' });\n      expect(m.exec('/users/bob//')).toBeNull();\n    });\n  });\n});\n"
  },
  {
    "path": "test/urlRouterSpec.ts",
    "content": "import * as angular from 'angular';\nimport { ILocationService, ILocationProvider } from 'angular';\nimport { html5Compat } from './util/testUtilsNg1';\nimport { UrlRule, UrlMatcher, UrlMatcherFactory, UrlRouter, StateService, UIRouter } from '../src/index';\nimport { UrlRouterProvider } from '../src/urlRouterProvider';\n\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\ndescribe('UrlRouter', function () {\n  let router: UIRouter;\n  let $urp: UrlRouterProvider,\n    $lp: ILocationProvider,\n    $umf: UrlMatcherFactory,\n    $s: StateService,\n    $ur: UrlRouter,\n    location: ILocationService,\n    match,\n    scope;\n\n  describe('provider', function () {\n    beforeEach(function () {\n      angular.module('ui.router.router.test', []).config(function ($uiRouterProvider) {\n        router = $uiRouterProvider;\n        $umf = router.urlMatcherFactory;\n        $urp = router.urlRouterProvider;\n        $urp.deferIntercept();\n      });\n\n      module('ui.router.router', 'ui.router.router.test');\n\n      inject(function ($rootScope, $location) {\n        scope = $rootScope.$new();\n        location = $location;\n      });\n    });\n\n    it('should throw on non-function rules', function () {\n      expect(function () {\n        $urp.rule(null);\n      }).toThrowError(\"'rule' must be a function\");\n      expect(function () {\n        $urp.otherwise(null);\n      }).toThrowError(\"'rule' must be a string or function\");\n    });\n\n    it('should allow location changes to be deferred', inject(function ($urlRouter, $location, $rootScope) {\n      const log = [];\n\n      $urp.rule(function ($injector, $location) {\n        log.push($location.path());\n        return null;\n      });\n\n      $location.path('/foo');\n      $rootScope.$broadcast('$locationChangeSuccess');\n\n      expect(log).toEqual([]);\n\n      $urlRouter.listen();\n      $rootScope.$broadcast('$locationChangeSuccess');\n\n      expect(log).toEqual(['/foo']);\n    }));\n  });\n\n  describe('service', function () {\n    beforeEach(function () {\n      angular.module('ui.router.router.test', []).config(function ($uiRouterProvider, $locationProvider) {\n        router = $uiRouterProvider;\n        $umf = router.urlMatcherFactory;\n        $urp = router.urlRouterProvider;\n        $lp = $locationProvider;\n        $locationProvider.hashPrefix('');\n\n        $urp\n          .rule(function ($injector, $location) {\n            const path = $location.path();\n            if (!/baz/.test(path)) return;\n            return path.replace('baz', 'b4z');\n          })\n          .when('/foo/:param', function ($match) {\n            match = ['/foo/:param', $match];\n          })\n          .when('/bar', function ($match) {\n            match = ['/bar', $match];\n          });\n      });\n\n      module('ui.router.router', 'ui.router.router.test');\n\n      inject(function ($rootScope, $location, $injector) {\n        scope = $rootScope.$new();\n        location = $location;\n        $ur = $injector.invoke($urp['$get'], $urp);\n        $s = $injector.get('$sniffer');\n        $s['history'] = true;\n      });\n    });\n\n    it('should execute rewrite rules', function () {\n      location.path('/foo');\n      scope.$emit('$locationChangeSuccess');\n      expect(location.path()).toBe('/foo');\n\n      location.path('/baz');\n      scope.$emit('$locationChangeSuccess');\n      expect(location.path()).toBe('/b4z');\n    });\n\n    it('should keep otherwise last', function () {\n      $urp.otherwise('/otherwise');\n\n      location.path('/lastrule');\n      scope.$emit('$locationChangeSuccess');\n      expect(location.path()).toBe('/otherwise');\n\n      $urp.when('/lastrule', function ($match) {\n        match = ['/lastrule', $match];\n      });\n\n      location.path('/lastrule');\n      scope.$emit('$locationChangeSuccess');\n      expect(location.path()).toBe('/lastrule');\n    });\n\n    it('can be cancelled by preventDefault() in $locationChangeSuccess', inject(function () {\n      let called;\n      location.path('/baz');\n      scope.$on('$locationChangeSuccess', function (ev) {\n        ev.preventDefault();\n        called = true;\n      });\n      scope.$emit('$locationChangeSuccess');\n      expect(called).toBeTruthy();\n      expect(location.path()).toBe('/baz');\n    }));\n\n    it('can be deferred and updated in $locationChangeSuccess', inject(function ($urlRouter, $timeout) {\n      let called;\n      location.path('/baz');\n      scope.$on('$locationChangeSuccess', function (ev) {\n        ev.preventDefault();\n        called = true;\n        $timeout(() => $urlRouter.sync(), 2000);\n      });\n      scope.$emit('$locationChangeSuccess');\n      $timeout.flush();\n      expect(called).toBeTruthy();\n      expect(location.path()).toBe('/b4z');\n    }));\n\n    it('rule should return a deregistration function', function () {\n      let count = 0;\n      let rule: UrlRule = {\n        match: () => count++,\n        handler: (match) => match,\n        matchPriority: () => 0,\n        $id: 0,\n        priority: 0,\n        _group: 0,\n        type: 'RAW',\n      };\n      const dereg = $ur.rule(rule as any);\n\n      $ur.sync();\n      expect(count).toBe(1);\n      $ur.sync();\n      expect(count).toBe(2);\n\n      dereg();\n      $ur.sync();\n      expect(count).toBe(2);\n    });\n\n    it('removeRule should remove a previously registered rule', function () {\n      let count = 0;\n      let rule: UrlRule = {\n        match: () => count++,\n        handler: (match) => match,\n        matchPriority: () => 0,\n        $id: 0,\n        priority: 0,\n        _group: 0,\n        type: 'RAW',\n      };\n      $ur.rule(rule as any);\n\n      $ur.sync();\n      expect(count).toBe(1);\n      $ur.sync();\n      expect(count).toBe(2);\n\n      $ur.removeRule(rule);\n      $ur.sync();\n      expect(count).toBe(2);\n    });\n\n    describe('location updates', function () {\n      it('can push location changes', inject(function ($urlRouter) {\n        const spy = spyOn(router.locationService, 'url');\n        $urlRouter.push($umf.compile('/hello/:name'), { name: 'world' });\n        expect(spy).toHaveBeenCalled();\n        expect(spy.calls.mostRecent().args[0]).toBe('/hello/world');\n      }));\n\n      it('can push a replacement location', inject(function ($urlRouter, $location) {\n        const spy = spyOn(router.locationService, 'url');\n        $urlRouter.push($umf.compile('/hello/:name'), { name: 'world' }, { replace: true });\n        expect(spy).toHaveBeenCalled();\n        expect(spy.calls.mostRecent().args.slice(0, 2)).toEqual(['/hello/world', true]);\n      }));\n\n      it('can push location changes with no parameters', inject(function ($urlRouter, $location) {\n        const spy = spyOn(router.locationService, 'url');\n        $urlRouter.push($umf.compile('/hello/:name', { state: { params: { name: '' } } }));\n        expect(spy).toHaveBeenCalled();\n        expect(spy.calls.mostRecent().args[0]).toBe('/hello/');\n      }));\n\n      it('can push an empty url', inject(function ($urlRouter, $location) {\n        const spy = spyOn(router.locationService, 'url');\n        $urlRouter.push($umf.compile('/{id}', { state: { params: { id: { squash: true, value: null } } } }));\n        expect(spy).toHaveBeenCalled();\n        expect(spy.calls.mostRecent().args[0]).toBe('');\n      }));\n\n      // Angular 1.2 doesn't seem to support $location.url(\"\")\n      if (angular.version.minor >= 3) {\n        // Test for https://github.com/angular-ui/ui-router/issues/3563\n        it('updates url after an empty url is pushed', inject(function ($urlRouter, $location) {\n          $lp.html5Mode(false);\n          const spy = spyOn(router.locationService, 'url').and.callThrough();\n          $urlRouter.push($umf.compile('/foobar'));\n          expect(spy.calls.mostRecent().args[0]).toBe('/foobar');\n          $urlRouter.push($umf.compile('/{id}', { state: { params: { id: { squash: true, value: null } } } }));\n          expect(spy.calls.mostRecent().args[0]).toBe('');\n          expect(router.locationService.url()).toBe('/');\n        }));\n\n        // Test #2 for https://github.com/angular-ui/ui-router/issues/3563\n        it('updates html5mode url after an empty url is pushed', inject(function ($urlRouter, $location) {\n          $lp.html5Mode(true);\n          const spy = spyOn(router.locationService, 'url').and.callThrough();\n          $urlRouter.push($umf.compile('/foobar'));\n          expect(spy.calls.mostRecent().args[0]).toBe('/foobar');\n          $urlRouter.push($umf.compile('/{id}', { state: { params: { id: { squash: true, value: null } } } }));\n          expect(spy.calls.mostRecent().args[0]).toBe('');\n          expect(router.locationService.url()).toBe('/');\n        }));\n      }\n\n      it('can push location changes that include a #fragment', inject(function ($urlRouter, $location) {\n        // html5mode disabled\n        $lp.html5Mode(false);\n        expect(html5Compat($lp.html5Mode())).toBe(false);\n        $urlRouter.push($umf.compile('/hello/:name'), { name: 'world', '#': 'frag' });\n        expect($location.url()).toBe('/hello/world#frag');\n        expect($location.hash()).toBe('frag');\n\n        // html5mode enabled\n        $lp.html5Mode(true);\n        expect(html5Compat($lp.html5Mode())).toBe(true);\n        $urlRouter.push($umf.compile('/hello/:name'), { name: 'world', '#': 'frag' });\n        expect($location.url()).toBe('/hello/world#frag');\n        expect($location.hash()).toBe('frag');\n      }));\n\n      it('can read and sync a copy of location URL', inject(function ($urlRouter, $location) {\n        $location.url('/old');\n\n        spyOn(router.locationService, 'url').and.callThrough();\n        $urlRouter.update(true);\n        expect(router.locationService.url).toHaveBeenCalled();\n\n        $location.url('/new');\n        $urlRouter.update();\n\n        expect($location.url()).toBe('/old');\n      }));\n\n      it('can read and sync a copy of location URL including query params', inject(function ($urlRouter, $location) {\n        $location.url('/old?param=foo');\n\n        spyOn(router.locationService, 'url').and.callThrough();\n        $urlRouter.update(true);\n        expect(router.locationService.url).toHaveBeenCalled();\n\n        $location.url('/new?param=bar');\n        $urlRouter.update();\n\n        expect($location.url()).toBe('/old?param=foo');\n      }));\n    });\n\n    describe('URL generation', function () {\n      it('should return null when UrlMatcher rejects parameters', inject(function ($urlRouter: UrlRouter) {\n        $umf.type('custom', <any>{ is: (val) => val === 1138 });\n        const matcher = $umf.compile('/foo/{param:custom}');\n\n        expect($urlRouter.href(matcher, { param: 1138 })).toBe('#/foo/1138');\n        expect($urlRouter.href(matcher, { param: 5 })).toBeNull();\n      }));\n\n      it('should handle the new html5Mode object config from Angular 1.3', inject(function ($urlRouter: UrlRouter) {\n        $lp.html5Mode({\n          enabled: false,\n        });\n\n        expect($urlRouter.href($umf.compile('/hello'))).toBe('#/hello');\n      }));\n\n      it('should return URLs with #fragments', inject(function ($urlRouter: UrlRouter) {\n        // html5mode disabled\n        $lp.html5Mode(false);\n        expect(html5Compat($lp.html5Mode())).toBe(false);\n        expect($urlRouter.href($umf.compile('/hello/:name'), { name: 'world', '#': 'frag' })).toBe(\n          '#/hello/world#frag'\n        );\n\n        // html5mode enabled\n        $lp.html5Mode(true);\n        expect(html5Compat($lp.html5Mode())).toBe(true);\n        expect($urlRouter.href($umf.compile('/hello/:name'), { name: 'world', '#': 'frag' })).toBe('/hello/world#frag');\n      }));\n\n      it('should return URLs with #fragments when html5Mode is true & browser does not support pushState', inject(function (\n        $urlRouter: UrlRouter\n      ) {\n        $lp.html5Mode(true);\n        $s['history'] = false;\n        expect(html5Compat($lp.html5Mode())).toBe(true);\n        expect($urlRouter.href($umf.compile('/hello/:name'), { name: 'world', '#': 'frag' })).toBe(\n          '#/hello/world#frag'\n        );\n      }));\n    });\n  });\n});\n"
  },
  {
    "path": "test/util/testUtilsNg1.ts",
    "content": "import * as angular from 'angular';\n\n// Promise testing support\nangular.module('ngMock').config(function ($provide, $locationProvider) {\n  var oldFn = $locationProvider.html5Mode;\n  $locationProvider.html5Mode = function () {\n    var retval = oldFn.apply($locationProvider, arguments);\n    return angular.isDefined(retval) && angular.isDefined(retval.enabled) ? retval.enabled : retval;\n  };\n\n  $provide.decorator('$q', function ($delegate, $rootScope) {\n    $delegate.flush = function () {\n      $rootScope.$digest();\n    };\n\n    // Add callbacks to the promise that expose the resolved value/error\n    function expose(promise) {\n      // Don't add hooks to the same promise twice (shouldn't happen anyway)\n      if (!promise.hasOwnProperty('$$resolved')) {\n        promise.$$resolved = false;\n        promise.then(\n          function (value) {\n            promise.$$resolved = { success: true, value: value };\n          },\n          function (error) {\n            promise.$$resolved = { success: false, error: error };\n          }\n        );\n\n        // We need to expose() any then()ed promises recursively\n        var qThen = promise.then;\n        promise.then = function () {\n          return expose(qThen.apply(this, arguments));\n        };\n      }\n      return promise;\n    }\n\n    // Wrap functions that return a promise\n    angular.forEach(['when', 'all', 'reject'], function (name) {\n      var qFunc = $delegate[name];\n      $delegate[name] = function () {\n        return expose(qFunc.apply(this, arguments));\n      };\n    });\n\n    // Wrap defer()\n    var qDefer = $delegate.defer;\n    $delegate.defer = function () {\n      var deferred = qDefer();\n      expose(deferred.promise);\n      return deferred;\n    };\n\n    return $delegate;\n  });\n});\n\ntry {\n  // Animation testing support\n  angular.module('mock.animate').config(function ($provide) {\n    $provide.decorator('$animate', function ($delegate) {\n      $delegate.flush = function () {\n        while (this.queue.length > 0) {\n          this.flushNext(this.queue[0].method);\n        }\n      };\n      return $delegate;\n    });\n  });\n} catch (e) {}\n\nexport function testablePromise(promise) {\n  if (!promise || !promise.then) throw new Error('Expected a promise, but got ' + jasmine.pp(promise) + '.');\n  if (!angular.isDefined(promise.$$resolved)) throw new Error('Promise has not been augmented by ngMock');\n  return promise;\n}\n\nexport function resolvedPromise(promise) {\n  var result = testablePromise(promise).$$resolved;\n  if (!result) throw new Error('Promise is not resolved yet');\n  return result;\n}\n\nexport function resolvedValue(promise) {\n  var result = resolvedPromise(promise);\n  if (!result.success) throw result.error;\n  return result.value;\n}\n\nexport function resolvedError(promise) {\n  var result = resolvedPromise(promise);\n  if (result.success) throw new Error('Promise was expected to fail but returned ' + jasmine.pp(result.value) + '.');\n  return result.error;\n}\n\n// Misc test utils\nexport function caught(fn) {\n  try {\n    fn();\n    return null;\n  } catch (e) {\n    return e;\n  }\n}\n\n// Usage of this helper should be replaced with a custom matcher in jasmine 2.0+\nexport function obj(object) {\n  var o = {};\n  angular.forEach(object, function (val, i) {\n    const key = (i as any) as string;\n    if (!/^\\$/.test(key) && key != '#') o[key] = val;\n  });\n  return o;\n}\n\nexport function html5Compat(html5mode) {\n  return angular.isObject(html5mode) && html5mode.hasOwnProperty('enabled') ? html5mode.enabled : html5mode;\n}\n\n/**\n * The ng1 $exceptionHandler from angular-mocks will re-throw any exceptions thrown in a Promise.\n * This chunk of code decorates the handler, allowing a test to disable that behavior.\n * Inject $exceptionHandler and set `$exceptionHandler.disabled = true`\n */\nexport function decorateExceptionHandler($exceptionHandlerProvider) {\n  var $get = $exceptionHandlerProvider.$get;\n\n  $exceptionHandlerProvider.$get = function () {\n    var realHandler = $get.apply($exceptionHandlerProvider, arguments);\n    function passThrough(e) {\n      if (!passThrough['disabled']) {\n        realHandler.apply(null, arguments);\n      }\n    }\n    return passThrough;\n  };\n}\n\nbeforeEach(angular['mock'].module('ui.router.compat'));\n"
  },
  {
    "path": "test/viewDirectiveSpec.ts",
    "content": "import * as angular from 'angular';\nimport { ICompileService, IRootScopeService } from 'angular';\nimport { extend } from '@uirouter/core';\ndeclare let inject, jasmine;\n\nconst module = angular.mock.module;\n\nfunction animateFlush($animate) {\n  if ($animate && $animate.flush) {\n    $animate.flush(); // 1.4\n  } else if ($animate && $animate.triggerCallbacks) {\n    $animate.triggerCallbacks(); // 1.2-1.3\n  }\n}\n\ndescribe('uiView', function () {\n  'use strict';\n\n  let $stateProvider, scope, $compile, elem, log;\n\n  beforeEach(function () {\n    const depends = ['ui.router'];\n    log = '';\n\n    try {\n      angular.module('ngAnimate');\n      depends.push('ngAnimate', 'ngAnimateMock');\n    } catch (e) {\n      angular.module('mock.animate', []).value('$animate', null);\n      module('mock.animate');\n    }\n\n    angular.module('ui.router.test', depends);\n    module('ui.router.test');\n  });\n\n  beforeEach(\n    module(function ($provide) {\n      $provide.decorator('$uiViewScroll', function () {\n        return jasmine.createSpy('$uiViewScroll');\n      });\n    })\n  );\n\n  const aState = {\n      template: 'aState template',\n    },\n    bState = {\n      template: 'bState template',\n    },\n    cState = {\n      views: {\n        cview: {\n          template: 'cState cview template',\n        },\n      },\n    },\n    dState = {\n      views: {\n        dview1: {\n          template: 'dState dview1 template',\n        },\n        dview2: {\n          template: 'dState dview2 template',\n        },\n      },\n    },\n    eState = {\n      template: '<div ui-view=\"eview\" class=\"eview\"></div>',\n    },\n    fState = {\n      views: {\n        eview: {\n          template: 'fState eview template',\n        },\n      },\n    },\n    gState = {\n      template: '<div ui-view=\"inner\"><span>{{content}}</span></div>',\n    },\n    hState = {\n      views: {\n        inner: {\n          template: 'hState inner template',\n        },\n      },\n    },\n    iState = {\n      template: '<div ui-view>' + '<ul><li ng-repeat=\"item in items\">{{item}}</li></ul>' + '</div>',\n    },\n    jState = {\n      template: 'jState',\n    },\n    kState = {\n      controller: function () {\n        this.someProperty = 'value';\n      },\n      template: '{{vm.someProperty}}',\n      controllerAs: 'vm',\n    },\n    lState = {\n      views: {\n        view1: {\n          template: 'view1',\n        },\n        view2: {\n          template: 'view2',\n        },\n        view3: {\n          template: 'view3',\n        },\n      },\n    },\n    mState = {\n      template: 'mState',\n      controller: function ($scope, $element) {\n        $scope.elementId = $element.attr('id');\n      },\n    },\n    nState = {\n      template: 'nState',\n      controller: function ($scope, $element) {\n        const data = $element.data('$uiViewAnim');\n        $scope.$on('$destroy', function () {\n          log += 'destroy;';\n        });\n        data.$animEnter.then(function () {\n          log += 'animEnter;';\n        });\n        data.$animLeave.then(function () {\n          log += 'animLeave;';\n        });\n      },\n    };\n\n  beforeEach(\n    module(function (_$stateProvider_) {\n      $stateProvider = _$stateProvider_;\n      $stateProvider\n        .state('a', aState)\n        .state('b', bState)\n        .state('c', cState)\n        .state('d', dState)\n        .state('e', eState)\n        .state('e.f', fState)\n        .state('g', gState)\n        .state('g.h', hState)\n        .state('i', iState)\n        .state('j', jState)\n        .state('k', kState)\n        .state('l', lState)\n        .state('m', mState)\n        .state('n', nState);\n    })\n  );\n\n  beforeEach(inject(function ($rootScope, _$compile_) {\n    scope = $rootScope.$new();\n    $compile = _$compile_;\n    elem = angular.element('<div>');\n  }));\n\n  describe('linking ui-directive', function () {\n    it('anonymous ui-view should be replaced with the template of the current $state', inject(function ($state, $q) {\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      expect(elem.find('ui-view').text()).toBe('');\n\n      $state.transitionTo(aState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(aState.template);\n    }));\n\n    it('named ui-view should be replaced with the template of the current $state', inject(function ($state, $q) {\n      elem.append($compile('<div><ui-view name=\"cview\"></ui-view></div>')(scope));\n\n      $state.transitionTo(cState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(cState.views.cview.template);\n    }));\n\n    it('ui-view should be updated after transition to another state', inject(function ($state, $q) {\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n      expect(elem.find('ui-view').text()).toBe('');\n\n      $state.transitionTo(aState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(aState.template);\n\n      $state.transitionTo(bState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(bState.template);\n    }));\n\n    it('should handle NOT nested ui-views', inject(function ($state, $q) {\n      elem.append(\n        $compile(\n          '<div><ui-view name=\"dview1\" class=\"dview1\"></ui-view><ui-view name=\"dview2\" class=\"dview2\"></ui-view></div>'\n        )(scope)\n      );\n      expect(elem.find('ui-view').eq(0).text()).toBe('');\n      expect(elem.find('ui-view').eq(1).text()).toBe('');\n\n      $state.transitionTo(dState);\n      $q.flush();\n\n      expect(elem.find('ui-view').eq(0).text()).toBe(dState.views.dview1.template);\n      expect(elem.find('ui-view').eq(1).text()).toBe(dState.views.dview2.template);\n    }));\n\n    it('should handle nested ui-views (testing two levels deep)', inject(function ($state, $q) {\n      $compile(elem.append('<div><ui-view></ui-view></div>'))(scope);\n      expect(elem.find('ui-view').text()).toBe('');\n\n      $state.transitionTo(fState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(fState.views.eview.template);\n    }));\n  });\n\n  describe('handling initial view', function () {\n    it('initial view should be compiled if the view is empty', inject(function ($state, $q) {\n      const content = 'inner content';\n      scope.content = content;\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      $state.transitionTo(gState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(content);\n    }));\n\n    it('initial view should be put back after removal of the view', inject(function ($state, $q) {\n      const content = 'inner content';\n      scope.content = content;\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      $state.go(hState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(hState.views.inner.template);\n\n      // going to the parent state which makes the inner view empty\n      $state.go(gState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(content);\n    }));\n\n    // related to issue #435\n    it('initial view should be transcluded once to prevent breaking other directives', inject(function ($state, $q) {\n      scope.items = ['I', 'am', 'a', 'list', 'of', 'items'];\n\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      // transition to state that has an initial view\n      $state.transitionTo(iState);\n      $q.flush();\n\n      // verify if ng-repeat has been compiled\n      expect(elem.find('li').length).toBe(scope.items.length);\n\n      // transition to another state that replace the initial content\n      $state.transitionTo(jState);\n      $q.flush();\n\n      expect(elem.find('ui-view').text()).toBe(jState.template);\n\n      // transition back to the state with empty subview and the initial view\n      $state.transitionTo(iState);\n      $q.flush();\n\n      // verify if the initial view is correct\n      expect(elem.find('li').length).toBe(scope.items.length);\n\n      // change scope properties\n      scope.$apply(function () {\n        scope.items.push('.', 'Working?');\n      });\n\n      // verify if the initial view has been updated\n      expect(elem.find('li').length).toBe(scope.items.length);\n    }));\n  });\n\n  describe('autoscroll attribute', function () {\n    it('should NOT autoscroll when unspecified', inject(function ($state, $q, $uiViewScroll, $animate) {\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      $state.transitionTo(aState);\n      $q.flush();\n\n      animateFlush($animate);\n\n      expect($uiViewScroll).not.toHaveBeenCalled();\n    }));\n\n    it('should autoscroll when expression is missing', inject(function ($state, $q, $uiViewScroll, $animate) {\n      elem.append($compile('<div><ui-view autoscroll></ui-view></div>')(scope));\n      $state.transitionTo(aState);\n      $q.flush();\n\n      animateFlush($animate);\n\n      expect($uiViewScroll).toHaveBeenCalledWith(elem.find('ui-view'));\n    }));\n\n    it('should autoscroll based on expression', inject(function ($state, $q, $uiViewScroll, $animate) {\n      scope.doScroll = false;\n\n      elem.append($compile('<div><ui-view autoscroll=\"doScroll\"></ui-view></div>')(scope));\n\n      $state.transitionTo(aState);\n      $q.flush();\n\n      animateFlush($animate);\n\n      expect($uiViewScroll).not.toHaveBeenCalled();\n\n      scope.doScroll = true;\n      $state.transitionTo(bState);\n      $q.flush();\n\n      animateFlush($animate);\n\n      let target,\n        index = -1,\n        uiViews = elem.find('ui-view');\n\n      while (index++ < uiViews.length) {\n        const uiView = angular.element(uiViews[index]);\n        if (uiView.text() === bState.template) target = uiView;\n      }\n\n      expect($uiViewScroll).toHaveBeenCalledWith(target);\n    }));\n  });\n\n  it('should instantiate a controller with controllerAs', inject(function ($state, $q) {\n    elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n    $state.transitionTo(kState);\n    $q.flush();\n\n    expect(elem.text()).toBe('value');\n  }));\n\n  it('should instantiate a controller with both $scope and $element injections', inject(function ($state, $q) {\n    elem.append($compile('<div><ui-view id=\"mState\">{{elementId}}</ui-view></div>')(scope));\n    $state.transitionTo(mState);\n    $q.flush();\n\n    expect(elem.text()).toBe('mState');\n  }));\n\n  describe('(resolved data)', function () {\n    let _scope;\n    function controller($scope) {\n      _scope = $scope;\n    }\n\n    const _state = {\n      name: 'resolve',\n      resolve: {\n        user: function ($timeout) {\n          return $timeout(function () {\n            return 'joeschmoe';\n          }, 100);\n        },\n      },\n    };\n\n    it('should provide the resolved data on the $scope', inject(function ($state, $q, $timeout) {\n      const state = angular.extend({}, _state, { template: '{{$resolve.user}}', controller: controller });\n      $stateProvider.state(state);\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      $state.transitionTo('resolve');\n      $q.flush();\n      $timeout.flush();\n      expect(elem.text()).toBe('joeschmoe');\n      expect(_scope.$resolve).toBeDefined();\n      expect(_scope.$resolve.user).toBe('joeschmoe');\n    }));\n\n    // Test for #2626\n    it('should provide the resolved data on the $scope even if there is no controller', inject(function (\n      $state,\n      $q,\n      $timeout\n    ) {\n      const state = angular.extend({}, _state, { template: '{{$resolve.user}}' });\n      $stateProvider.state(state);\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n      expect(elem.text()).toBe('');\n\n      $state.transitionTo('resolve');\n      $q.flush();\n      $timeout.flush();\n      expect(elem.text()).toBe('joeschmoe');\n    }));\n\n    it('should put the resolved data on the resolveAs variable', inject(function ($state, $q, $timeout) {\n      const state = angular.extend({}, _state, {\n        template: '{{$$$resolve.user}}',\n        resolveAs: '$$$resolve',\n        controller: controller,\n      });\n      $stateProvider.state(state);\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      $state.transitionTo('resolve');\n      $q.flush();\n      $timeout.flush();\n      expect(elem.text()).toBe('joeschmoe');\n      expect(_scope.$$$resolve).toBeDefined();\n      expect(_scope.$$$resolve.user).toBe('joeschmoe');\n    }));\n\n    it('should put the resolved data on the controllerAs', inject(function ($state, $q, $timeout) {\n      const state = angular.extend({}, _state, {\n        template: '{{$ctrl.$resolve.user}}',\n        controllerAs: '$ctrl',\n        controller: controller,\n      });\n      $stateProvider.state(state);\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      $state.transitionTo('resolve');\n      $q.flush();\n      $timeout.flush();\n      expect(elem.text()).toBe('joeschmoe');\n      expect(_scope.$resolve).toBeDefined();\n      expect(_scope.$ctrl).toBeDefined();\n      expect(_scope.$ctrl.$resolve).toBeDefined();\n      expect(_scope.$ctrl.$resolve.user).toBe('joeschmoe');\n    }));\n\n    it('should not allow both view-level resolveAs and state-level resolveAs on the same state', inject(function (\n      $state,\n      $q,\n      $timeout\n    ) {\n      const views = {\n        $default: {\n          controller: controller,\n          template: '{{$$$resolve.user}}',\n          resolveAs: '$$$resolve',\n        },\n      };\n      const state = angular.extend({}, _state, { resolveAs: 'foo', views: views });\n      expect(() => $stateProvider.state(state)).toThrowError(/resolveAs/);\n    }));\n  });\n\n  it('should call the existing $onInit after instantiating a controller', inject(function ($state, $q) {\n    const $onInit = jasmine.createSpy();\n    $stateProvider.state('onInit', {\n      controller: function () {\n        this.$onInit = $onInit;\n      },\n      template: 'hi',\n      controllerAs: 'vm',\n    });\n    elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n    $state.transitionTo('onInit');\n    $q.flush();\n\n    expect($onInit).toHaveBeenCalled();\n  }));\n\n  it('should default the template to a <ui-view>', inject(function ($state, $q) {\n    $stateProvider.state('abstract', { abstract: true });\n    $stateProvider.state('abstract.foo', { template: 'hello' });\n    elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n    $state.transitionTo('abstract.foo');\n    $q.flush();\n\n    expect(elem.text()).toBe('hello');\n  }));\n\n  describe('play nicely with other directives', function () {\n    // related to issue #857\n    it('should work with ngIf', inject(function ($state, $q, $compile) {\n      // ngIf does not exist in 1.0.8\n      if (angular.version.full === '1.0.8') return;\n\n      scope.someBoolean = false;\n      elem.append($compile('<div ng-if=\"someBoolean\"><ui-view></ui-view></div>')(scope));\n\n      $state.transitionTo(aState);\n      $q.flush();\n\n      // Verify there is no ui-view in the DOM\n      expect(elem.find('ui-view').length).toBe(0);\n\n      // Turn on the div that holds the ui-view\n      scope.someBoolean = true;\n      scope.$digest();\n\n      // Verify that the ui-view is there and it has the correct content\n      expect(elem.find('ui-view').text()).toBe(aState.template);\n\n      // Turn off the ui-view\n      scope.someBoolean = false;\n      scope.$digest();\n\n      // Verify there is no ui-view in the DOM\n      expect(elem.find('ui-view').length).toBe(0);\n\n      // Turn on the div that holds the ui-view once again\n      scope.someBoolean = true;\n      scope.$digest();\n\n      // Verify that the ui-view is there and it has the correct content\n      expect(elem.find('ui-view').text()).toBe(aState.template);\n    }));\n\n    it('should work with ngClass', inject(function ($state, $q, $compile) {\n      const classes = (elem) => Array.prototype.slice.call(elem[0].classList);\n\n      scope.showClass = false;\n      elem.append($compile('<div><ui-view ng-class=\"{\\'someClass\\': showClass}\"></ui-view></div>')(scope));\n\n      expect(classes(elem.find('ui-view'))).not.toContain('someClass');\n\n      scope.showClass = true;\n      scope.$digest();\n\n      expect(classes(elem.find('ui-view'))).toContain('someClass');\n\n      scope.showClass = false;\n      scope.$digest();\n\n      expect(classes(elem.find('ui-view'))).not.toContain('someClass');\n    }));\n\n    describe('working with ngRepeat', function () {\n      // ngRepeat does not work properly with uiView in 1.0.8 & 1.1.5\n      if (['1.0.8', '1.1.5'].indexOf(angular.version.full) !== -1) return;\n\n      it('should have correct number of uiViews', inject(function ($state, $q, $compile) {\n        elem.append($compile('<div><ui-view ng-repeat=\"view in views\" name=\"{{view}}\"></ui-view></div>')(scope));\n\n        // Should be no ui-views in DOM\n        expect(elem.find('ui-view').length).toBe(0);\n\n        // Lets add 3\n        scope.views = ['view1', 'view2', 'view3'];\n        scope.$digest();\n\n        // Should be 3 ui-views in the DOM\n        expect(elem.find('ui-view').length).toBe(scope.views.length);\n\n        // Lets add one more - yay two-way binding\n        scope.views.push('view4');\n        scope.$digest();\n\n        // Should have 4 ui-views\n        expect(elem.find('ui-view').length).toBe(scope.views.length);\n\n        // Lets remove 2 ui-views from the DOM\n        scope.views.pop();\n        scope.views.pop();\n        scope.$digest();\n\n        // Should have 2 ui-views\n        expect(elem.find('ui-view').length).toBe(scope.views.length);\n      }));\n\n      it('should populate each view with content', inject(function ($state, $q, $compile) {\n        elem.append(\n          $compile('<div><ui-view ng-repeat=\"view in views\" name=\"{{view}}\">defaultcontent</ui-view></div>')(scope)\n        );\n\n        $state.transitionTo(lState);\n        $q.flush();\n\n        expect(elem.find('ui-view').length).toBe(0);\n\n        scope.views = ['view1', 'view2'];\n\n        scope.$digest();\n\n        let uiViews = elem.find('ui-view');\n\n        expect(uiViews.eq(0).text()).toBe(lState.views.view1.template);\n        expect(uiViews.eq(1).text()).toBe(lState.views.view2.template);\n        expect(uiViews.eq(2).length).toBe(0);\n\n        scope.views.push('view3');\n        scope.$digest();\n\n        uiViews = elem.find('ui-view');\n\n        expect(uiViews.eq(0).text()).toBe(lState.views.view1.template);\n        expect(uiViews.eq(1).text()).toBe(lState.views.view2.template);\n        expect(uiViews.eq(2).text()).toBe(lState.views.view3.template);\n      }));\n\n      it('should interpolate ui-view names', inject(function ($state, $q, $compile) {\n        elem.append(\n          $compile('<div ng-repeat=\"view in views\">' + '<ui-view name=\"view{{$index + 1}}\">hallo</ui-view>' + '</div>')(\n            scope\n          )\n        );\n\n        $state.transitionTo(lState);\n        $q.flush();\n\n        expect(elem.find('ui-view').length).toBe(0);\n\n        scope.views = ['view1', 'view2'];\n\n        scope.$digest();\n\n        let uiViews = elem.find('ui-view');\n\n        expect(uiViews.eq(0).text()).toBe(lState.views.view1.template);\n        expect(uiViews.eq(1).text()).toBe(lState.views.view2.template);\n        expect(uiViews.eq(2).length).toBe(0);\n\n        scope.views.push('view3');\n        scope.$digest();\n\n        uiViews = elem.find('ui-view');\n\n        expect(uiViews.eq(0).text()).toBe(lState.views.view1.template);\n        expect(uiViews.eq(1).text()).toBe(lState.views.view2.template);\n        expect(uiViews.eq(2).text()).toBe(lState.views.view3.template);\n      }));\n    });\n  });\n\n  describe('AngularJS Animations', function () {\n    it('should do transition animations', inject(function ($state, $q, $compile, $animate) {\n      let content = 'Initial Content',\n        animation;\n      elem.append($compile('<div><ui-view>' + content + '</ui-view></div>')(scope));\n\n      // Enter Animation\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('enter');\n      expect(animation.element.text() + '-1').toBe(content + '-1');\n\n      $state.transitionTo(aState);\n      $q.flush();\n\n      // Enter Animation\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('enter');\n      expect(animation.element.text() + '-2').toBe(aState.template + '-2');\n      // Leave Animation\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('leave');\n      expect(animation.element.text() + '-3').toBe(content + '-3');\n\n      $state.transitionTo(bState);\n      $q.flush();\n\n      // Enter Animation\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('enter');\n      expect(animation.element.text() + '-4').toBe(bState.template + '-4');\n      // Leave Animation\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('leave');\n      expect(animation.element.text() + '-5').toBe(aState.template + '-5');\n\n      // No more animations\n      expect($animate.queue.length).toBe(0);\n    }));\n\n    it('should do ngClass animations', inject(function ($state, $q, $compile, $animate) {\n      scope.classOn = false;\n      let content = 'Initial Content',\n        className = 'yay',\n        animation;\n      elem.append(\n        $compile('<div><ui-view ng-class=\"{\\'' + className + '\\': classOn}\">' + content + '</ui-view></div>')(scope)\n      );\n      // Don't care about enter class\n      $animate.queue.shift();\n\n      scope.classOn = true;\n      scope.$digest();\n\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('addClass');\n      expect(animation.element.text()).toBe(content);\n\n      scope.classOn = false;\n      scope.$digest();\n\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('removeClass');\n      expect(animation.element.text()).toBe(content);\n\n      // No more animations\n      expect($animate.queue.length).toBe(0);\n    }));\n\n    it('should do ngIf animations', inject(function ($state, $q, $compile, $animate) {\n      scope.shouldShow = false;\n      let content = 'Initial Content',\n        animation;\n      elem.append($compile('<div><ui-view ng-if=\"shouldShow\">' + content + '</ui-view></div>')(scope));\n\n      // No animations yet\n      expect($animate.queue.length).toBe(0);\n\n      scope.shouldShow = true;\n      scope.$digest();\n\n      // $ViewDirective enter animation - Basically it's just the <!-- uiView --> comment\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('enter');\n      expect(animation.element.text()).toBe('');\n\n      // $ViewDirectiveFill enter animation - The second uiView directive that files in the content\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('enter');\n      expect(animation.element.text()).toBe(content);\n\n      scope.shouldShow = false;\n      scope.$digest();\n\n      // uiView leave animation\n      animation = $animate.queue.shift();\n      expect(animation.event).toBe('leave');\n      expect(animation.element.text()).toBe(content);\n\n      // No more animations\n      expect($animate.queue.length).toBe(0);\n    }));\n\n    it('should expose animation promises to controllers', inject(function (\n      $state,\n      $q,\n      $compile,\n      $animate,\n      $transitions\n    ) {\n      $transitions.onStart({}, function ($transition$) {\n        log += 'start:' + $transition$.to().name + ';';\n      });\n      $transitions.onFinish({}, function ($transition$) {\n        log += 'finish:' + $transition$.to().name + ';';\n      });\n      $transitions.onSuccess({}, function ($transition$) {\n        log += 'success:' + $transition$.to().name + ';';\n      });\n\n      const content = 'Initial Content';\n      elem.append($compile('<div><ui-view>' + content + '</ui-view></div>')(scope));\n      $state.transitionTo('n');\n      $q.flush();\n\n      expect($state.current.name).toBe('n');\n      expect(log).toBe('start:n;finish:n;success:n;');\n\n      animateFlush($animate);\n      $q.flush();\n      expect(log).toBe('start:n;finish:n;success:n;animEnter;');\n\n      $state.transitionTo('a');\n      $q.flush();\n      expect($state.current.name).toBe('a');\n      expect(log).toBe('start:n;finish:n;success:n;animEnter;start:a;finish:a;destroy;success:a;');\n\n      animateFlush($animate);\n      $q.flush();\n      expect(log).toBe('start:n;finish:n;success:n;animEnter;start:a;finish:a;destroy;success:a;animLeave;');\n    }));\n  });\n});\n\ndescribe('UiView', function () {\n  beforeEach(module('ui.router'));\n  beforeEach(\n    module(function ($stateProvider) {\n      $stateProvider\n        .state('main', { abstract: true, views: { main: {} } })\n        .state('main.home', { views: { content: { template: 'HOME' } } })\n        .state('test', { views: { nest: { template: 'TEST' } } });\n    })\n  );\n\n  it(\"shouldn't puke on weird nested view setups\", inject(function ($compile, $rootScope, $q, $state) {\n    $compile('<div ui-view=\"main\"><div ui-view=\"content\"></div></div>')($rootScope);\n\n    $state.go('main.home');\n    $q.flush();\n\n    expect($state.current.name).toBe('main.home');\n  }));\n\n  // Test for https://github.com/angular-ui/ui-router/issues/3355\n  it(\"should target weird nested view setups using the view's simple name\", inject(function (\n    $compile,\n    $rootScope,\n    $q,\n    $state\n  ) {\n    const tpl = `\n      <div>\n        <div ui-view=\"main\">\n          MAIN-DEFAULT-\n          <div ui-view=\"content\">\n            <div ui-view=\"nest\"></div>\n          </div>\n        </div>\n      </div>\n    `;\n    const el = $compile(tpl)($rootScope);\n\n    $state.go('test');\n    $q.flush();\n\n    expect($state.current.name).toBe('test');\n    expect(el.text().replace(/\\s*/g, '')).toBe('MAIN-DEFAULT-TEST');\n  }));\n});\n\ndescribe('uiView transclusion', function () {\n  let scope, $compile, elem;\n\n  beforeEach(function () {\n    const app = angular.module('foo', []);\n\n    app.directive('scopeObserver', function () {\n      return {\n        restrict: 'E',\n        link: function (scope) {\n          scope.$emit('directiveCreated');\n          scope.$on('$destroy', function () {\n            scope.$emit('directiveDestroyed');\n          });\n        },\n      };\n    });\n  });\n\n  beforeEach(module('ui.router', 'foo'));\n\n  beforeEach(\n    module(function ($stateProvider) {\n      $stateProvider\n        .state('a', { template: '<ui-view><scope-observer></scope-observer></ui-view>' })\n        .state('a.b', { template: 'anything' });\n    })\n  );\n\n  beforeEach(inject(function ($rootScope, _$compile_) {\n    scope = $rootScope.$new();\n    $compile = _$compile_;\n    elem = angular.element('<div>');\n  }));\n\n  it('should not link the initial view and leave its scope undestroyed when a subview is activated', inject(function (\n    $state,\n    $q\n  ) {\n    let aliveCount = 0;\n    scope.$on('directiveCreated', function () {\n      aliveCount++;\n    });\n    scope.$on('directiveDestroyed', function () {\n      aliveCount--;\n    });\n    elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n    $state.transitionTo('a.b');\n    $q.flush();\n    expect(aliveCount).toBe(0);\n  }));\n});\n\ndescribe('uiView controllers or onEnter handlers', function () {\n  let el, template, scope, document, count;\n\n  beforeEach(module('ui.router'));\n\n  beforeEach(\n    module(function ($stateProvider) {\n      count = 0;\n      $stateProvider\n        .state('aside', { url: '/aside', template: '<div class=\"aside\"></div>' })\n        .state('A', { url: '/A', template: '<div class=\"A\" ui-view=\"fwd\"></div>' })\n        .state('A.fwd', {\n          url: '/fwd',\n          views: {\n            fwd: {\n              template: '<div class=\"fwd\" ui-view>',\n              controller: function ($state) {\n                if (count++ < 20 && $state.current.name == 'A.fwd') $state.go('.nest');\n              },\n            },\n          },\n        })\n        .state('A.fwd.nest', { url: '/nest', template: '<div class=\"nest\"></div>' });\n    })\n  );\n\n  beforeEach(inject(function ($document) {\n    document = $document[0];\n  }));\n\n  it('should not go into an infinite loop when controller uses $state.go', inject(function (\n    $rootScope,\n    $q,\n    $compile,\n    $state\n  ) {\n    el = angular.element('<div><ui-view></ui-view></div>');\n    template = $compile(el)($rootScope);\n    $rootScope.$digest();\n\n    $state.transitionTo('aside');\n    $q.flush();\n    expect(template[0].querySelector('.aside')).toBeDefined();\n    expect(template[0].querySelector('.fwd')).toBeNull();\n\n    $state.transitionTo('A');\n    $q.flush();\n    expect(template[0].querySelector('.A')).not.toBeNull();\n    expect(template[0].querySelector('.fwd')).toBeNull();\n\n    $state.transitionTo('A.fwd');\n    $q.flush();\n    expect(template[0].querySelector('.A')).not.toBeNull();\n    expect(template[0].querySelector('.fwd')).not.toBeNull();\n    expect(template[0].querySelector('.nest')).not.toBeNull();\n    expect(count).toBe(1);\n  }));\n});\n\ndescribe('angular 1.5+ style .component()', function () {\n  let el, app, scope, log, svcs, $stateProvider;\n\n  beforeEach(function () {\n    app = angular.module('foo', []);\n\n    // ng 1.2 directive (manually bindToController)\n    app.directive('ng12Directive', function () {\n      return {\n        restrict: 'E',\n        scope: { data: '=' },\n        templateUrl: '/comp_tpl.html',\n        controller: function ($scope) {\n          this.data = $scope.data;\n        },\n        controllerAs: '$ctrl',\n      };\n    });\n\n    // ng 1.3-1.4 directive with bindToController\n    app.directive('ng13Directive', function () {\n      return {\n        scope: { data: '=' },\n        templateUrl: '/comp_tpl.html',\n        controller: function () {\n          this.$onInit = function () {\n            log += 'onInit;';\n          };\n        },\n        bindToController: true,\n        controllerAs: '$ctrl',\n      };\n    });\n\n    app.directive('ng12DynamicDirective', function () {\n      return {\n        restrict: 'E',\n        template: 'dynamic directive',\n      };\n    });\n\n    // ng 1.5+ component\n    if (angular.version.minor >= 5) {\n      app.component('ngComponent', {\n        bindings: { data: '<', data2: '<' },\n        templateUrl: '/comp_tpl.html',\n        controller: function () {\n          this.$onInit = function () {\n            log += 'onInit;';\n          };\n        },\n      });\n\n      app.component('header', {\n        bindings: { status: '<' },\n        template: '#{{ $ctrl.status }}#',\n      });\n\n      app.component('bindingTypes', {\n        bindings: { oneway: '<oneway', twoway: '=', attribute: '@attr' },\n        template: '-{{ $ctrl.oneway }},{{ $ctrl.twoway }},{{ $ctrl.attribute }}-',\n      });\n\n      app.component('optionalBindingTypes', {\n        bindings: { oneway: '<?oneway', twoway: '=?', attribute: '@?attr' },\n        template: '-{{ $ctrl.oneway }},{{ $ctrl.twoway }},{{ $ctrl.attribute }}-',\n      });\n\n      app.component('eventComponent', {\n        bindings: { evt: '&' },\n        template: 'eventCmp',\n      });\n\n      app.component('mydataComponent', {\n        bindings: { dataUser: '<' },\n        template: '-{{ $ctrl.dataUser }}-',\n      });\n\n      app.component('dataComponent', {\n        template: 'DataComponent',\n      });\n\n      app.component('parentCallbackComponent', {\n        controller: function ($rootScope) {\n          this.handleEvent = function (foo, bar) {\n            $rootScope.log.push(foo);\n            $rootScope.log.push(bar);\n          };\n        },\n        template: `\n          <h1>parentCmp</h1>\n          <ui-view on-event=\"$ctrl.handleEvent(foo, bar)\"></ui-view>\n          `,\n      });\n\n      app.component('childEventComponent', {\n        bindings: { onEvent: '&' },\n        template: `\n          <h1>childCmp</h1>\n          <button id=\"eventbtn\" ng-click=\"$ctrl.onEvent({ foo: 123, bar: 456 })\">Button</button>\n          `,\n      });\n\n      app.component('dynamicComponent', {\n        template: 'dynamicComponent {{ $ctrl.param }}',\n        controller: function () {\n          this.uiOnParamsChanged = function (params) {\n            this.param = params.param;\n          };\n        },\n      });\n    }\n  });\n\n  beforeEach(module('ui.router', 'foo'));\n  beforeEach(\n    module(function (_$stateProvider_) {\n      $stateProvider = _$stateProvider_;\n    })\n  );\n\n  beforeEach(inject(function ($rootScope, _$httpBackend_, _$compile_, _$state_, _$q_) {\n    svcs = { $httpBackend: _$httpBackend_, $compile: _$compile_, $state: _$state_, $q: _$q_ };\n    scope = $rootScope.$new();\n    log = '';\n    el = angular.element('<div><ui-view></ui-view></div>');\n    svcs.$compile(el)(scope);\n  }));\n\n  describe('routing using component templates', function () {\n    beforeEach(function () {\n      $stateProvider.state('cmp_tpl', {\n        url: '/cmp_tpl',\n        templateUrl: '/state_tpl.html',\n        controller: function () {},\n        resolve: {\n          data: function () {\n            return 'DATA!';\n          },\n        },\n      });\n    });\n\n    it('should work with directives which themselves have templateUrls', function () {\n      const $state = svcs.$state,\n        $httpBackend = svcs.$httpBackend,\n        $q = svcs.$q;\n\n      $httpBackend.expectGET('/state_tpl.html').respond('x<ng12-directive data=\"$resolve.data\"></ng12-directive>x');\n      $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n\n      $state.transitionTo('cmp_tpl');\n      $q.flush();\n\n      // Template has not yet been fetched\n      let directiveEl = el[0].querySelector('div ui-view ng12-directive');\n      expect(directiveEl).toBeNull();\n      expect($state.current.name).toBe('');\n\n      // Fetch templates\n      $httpBackend.flush();\n      directiveEl = el[0].querySelector('div ui-view ng12-directive');\n      expect(directiveEl).toBeDefined();\n      expect($state.current.name).toBe('cmp_tpl');\n\n      expect(angular.element(directiveEl).data('$ng12DirectiveController')).toBeDefined();\n      expect(el.text()).toBe('x-DATA!-x');\n    });\n\n    if (angular.version.minor >= 3) {\n      it('should work with ng 1.3+ bindToController directives', function () {\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/state_tpl.html').respond('x<ng13-directive data=\"$resolve.data\"></ng13-directive>x');\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n\n        $state.transitionTo('cmp_tpl');\n        $q.flush();\n        $httpBackend.flush();\n\n        const directiveEl = el[0].querySelector('div ui-view ng13-directive');\n        expect(directiveEl).toBeDefined();\n        expect($state.current.name).toBe('cmp_tpl');\n\n        expect(angular.element(directiveEl).data('$ng13DirectiveController')).toBeDefined();\n        expect(el.text()).toBe('x-DATA!-x');\n      });\n    }\n\n    if (angular.version.minor >= 5) {\n      it('should work with ng 1.5+ .component()s', function () {\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/state_tpl.html').respond('x<ng-component data=\"$resolve.data\"></ng-component>x');\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n\n        $state.transitionTo('cmp_tpl');\n        $q.flush();\n        $httpBackend.flush();\n\n        const directiveEl = el[0].querySelector('div ui-view ng-component');\n        expect(directiveEl).toBeDefined();\n        expect($state.current.name).toBe('cmp_tpl');\n\n        expect(angular.element(directiveEl).data('$ngComponentController')).toBeDefined();\n        expect(el.text()).toBe('x-DATA!-x');\n      });\n    }\n  });\n\n  describe('+ component: declaration', function () {\n    it('should disallow controller/template configuration', function () {\n      const stateDef = {\n        url: '/route2cmp',\n        component: 'ng12Directive',\n        resolve: {\n          data: function () {\n            return 'DATA!';\n          },\n        },\n      };\n\n      expect(function () {\n        $stateProvider.state('route2cmp', extend({ template: 'fail' }, stateDef));\n      }).toThrow();\n      expect(function () {\n        $stateProvider.state('route2cmp', extend({ templateUrl: 'fail.html' }, stateDef));\n      }).toThrow();\n      expect(function () {\n        $stateProvider.state('route2cmp', extend({ templateProvider: function () {} }, stateDef));\n      }).toThrow();\n      expect(function () {\n        $stateProvider.state('route2cmp', extend({ controllerAs: 'fail' }, stateDef));\n      }).toThrow();\n      expect(function () {\n        $stateProvider.state('route2cmp', extend({ controller: 'FailCtrl' }, stateDef));\n      }).toThrow();\n      expect(function () {\n        $stateProvider.state('route2cmp', extend({ controllerProvider: function () {} }, stateDef));\n      }).toThrow();\n\n      expect(function () {\n        $stateProvider.state('route2cmp', stateDef);\n      }).not.toThrow();\n    });\n\n    it('should work with angular 1.2+ directives', function () {\n      $stateProvider.state('route2cmp', {\n        url: '/route2cmp',\n        component: 'ng12Directive',\n        resolve: {\n          data: function () {\n            return 'DATA!';\n          },\n        },\n      });\n\n      const $state = svcs.$state,\n        $httpBackend = svcs.$httpBackend,\n        $q = svcs.$q;\n\n      $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n      $state.transitionTo('route2cmp');\n      $q.flush();\n      $httpBackend.flush();\n\n      const directiveEl = el[0].querySelector('div ui-view ng12-directive');\n      expect(directiveEl).toBeDefined();\n      expect($state.current.name).toBe('route2cmp');\n      expect(el.text()).toBe('-DATA!-');\n    });\n\n    if (angular.version.minor >= 3) {\n      it('should work with angular 1.3+ bindToComponent directives', function () {\n        $stateProvider.state('route2cmp', {\n          url: '/route2cmp',\n          component: 'ng13Directive',\n          resolve: {\n            data: function () {\n              return 'DATA!';\n            },\n          },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        const directiveEl = el[0].querySelector('div ui-view ng13-directive');\n        expect(directiveEl).toBeDefined();\n        expect($state.current.name).toBe('route2cmp');\n        expect(el.text()).toBe('-DATA!-');\n      });\n\n      it('should call $onInit() once', function () {\n        $stateProvider.state('route2cmp', {\n          url: '/route2cmp',\n          component: 'ng13Directive',\n          resolve: {\n            data: function () {\n              return 'DATA!';\n            },\n          },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        expect(log).toBe('onInit;');\n      });\n    }\n\n    if (angular.version.minor >= 5) {\n      it('should work with angular 1.5+ .component()s', function () {\n        $stateProvider.state('route2cmp', {\n          url: '/route2cmp',\n          component: 'ngComponent',\n          resolve: {\n            data: function () {\n              return 'DATA!';\n            },\n          },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        const directiveEl = el[0].querySelector('div ui-view ng-component');\n        expect(directiveEl).toBeDefined();\n        expect($state.current.name).toBe('route2cmp');\n        expect(el.text()).toBe('-DATA!-');\n      });\n\n      it('should only call $onInit() once', function () {\n        $stateProvider.state('route2cmp', {\n          component: 'ngComponent',\n          resolve: {\n            data: function () {\n              return 'DATA!';\n            },\n          },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        expect(log).toBe('onInit;');\n      });\n\n      it('should only call $onInit() once with componentProvider', function () {\n        $stateProvider.state('route2cmp', {\n          componentProvider: () => 'ngComponent',\n          resolve: {\n            data: function () {\n              return 'DATA!';\n            },\n          },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        expect(log).toBe('onInit;');\n      });\n\n      it('should supply resolve data to \"<\", \"=\", \"@\" bindings', function () {\n        $stateProvider.state('bindingtypes', {\n          component: 'bindingTypes',\n          resolve: {\n            oneway: function () {\n              return 'ONEWAY';\n            },\n            twoway: function () {\n              return 'TWOWAY';\n            },\n            attribute: function () {\n              return 'ATTRIBUTE';\n            },\n          },\n          bindings: { attr: 'attribute' },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $state.transitionTo('bindingtypes');\n        $q.flush();\n\n        expect(el.text()).toBe('-ONEWAY,TWOWAY,ATTRIBUTE-');\n      });\n\n      it('should supply resolve data to optional \"<?\", \"=?\", \"@?\" bindings', function () {\n        $stateProvider.state('optionalbindingtypes', {\n          component: 'optionalBindingTypes',\n          resolve: {\n            oneway: function () {\n              return 'ONEWAY';\n            },\n            twoway: function () {\n              return 'TWOWAY';\n            },\n            attribute: function () {\n              return 'ATTRIBUTE';\n            },\n          },\n          bindings: { attr: 'attribute' },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $state.transitionTo('optionalbindingtypes');\n        $q.flush();\n\n        expect(el.text()).toBe('-ONEWAY,TWOWAY,ATTRIBUTE-');\n      });\n\n      // Test for #3099\n      it('should not throw when routing to a component with output \"&\" binding', function () {\n        $stateProvider.state('nothrow', {\n          component: 'eventComponent',\n        });\n\n        const $state = svcs.$state,\n          $q = svcs.$q;\n        $state.transitionTo('nothrow');\n        $q.flush();\n\n        expect(el.text()).toBe('eventCmp');\n      });\n\n      // Test for #3276\n      it('should route to a component that is prefixed with \"data\"', function () {\n        $stateProvider.state('data', {\n          component: 'dataComponent',\n        });\n\n        const $state = svcs.$state,\n          $q = svcs.$q;\n        $state.transitionTo('data');\n        $q.flush();\n\n        expect(el.text()).toBe('DataComponent');\n      });\n\n      // Test for #3276\n      it('should bind a resolve that is prefixed with \"data\"', function () {\n        $stateProvider.state('data', {\n          component: 'mydataComponent',\n          resolve: { dataUser: () => 'user' },\n        });\n\n        const $state = svcs.$state,\n          $q = svcs.$q;\n        $state.transitionTo('data');\n        $q.flush();\n\n        expect(el.text()).toBe('-user-');\n      });\n\n      // Test for #3239\n      it('should pass any bindings (wired from a parent component template via the ui-view) through to the child', inject(function (\n        $rootScope\n      ) {\n        const $state = svcs.$state,\n          $q = svcs.$q;\n\n        $stateProvider.state('parent', {\n          template: '<ui-view oneway=\"data1w\" twoway=\"data2w\" attr=\"attrval\"></ui-view>',\n          controller: function ($scope) {\n            $scope.data1w = '1w';\n            $scope.data2w = '2w';\n          },\n        });\n\n        $stateProvider.state('parent.child', {\n          component: 'bindingTypes',\n        });\n\n        $state.transitionTo('parent.child');\n        $q.flush();\n        expect(el.text()).toEqual('-1w,2w,attrval-');\n      }));\n\n      // Test for #3239\n      it('should prefer ui-view bindings over resolve data', inject(function ($rootScope) {\n        const $state = svcs.$state,\n          $q = svcs.$q;\n\n        $stateProvider.state('parent', {\n          template: '<ui-view oneway=\"data1w\" twoway=\"data2w\" attr=\"attrval\"></ui-view>',\n          resolve: {\n            oneway: () => 'asfasfd',\n            twoway: () => 'asfasfd',\n            attr: () => 'asfasfd',\n          },\n          controller: function ($scope) {\n            $scope.data1w = '1w';\n            $scope.data2w = '2w';\n          },\n        });\n\n        $stateProvider.state('parent.child', {\n          component: 'bindingTypes',\n        });\n\n        $state.transitionTo('parent.child');\n        $q.flush();\n        expect(el.text()).toEqual('-1w,2w,attrval-');\n      }));\n\n      // Test for #3239\n      it('should prefer ui-view bindings over resolve data unless a bindings exists', inject(function ($rootScope) {\n        const $state = svcs.$state,\n          $q = svcs.$q;\n\n        $stateProvider.state('parent', {\n          template: '<ui-view oneway=\"data1w\" twoway=\"data2w\" attr=\"attrval\"></ui-view>',\n          resolve: {\n            oneway: () => 'asfasfd',\n            twoway: () => 'asfasfd',\n            attr: () => 'asfasfd',\n          },\n          controller: function ($scope) {\n            $scope.data1w = '1w';\n            $scope.data2w = '2w';\n          },\n        });\n\n        $stateProvider.state('parent.child', {\n          component: 'bindingTypes',\n          bindings: { oneway: 'oneway' },\n        });\n\n        $state.transitionTo('parent.child');\n        $q.flush();\n        expect(el.text()).toEqual('-asfasfd,2w,attrval-');\n      }));\n\n      // Test for #3239\n      it('should pass & bindings (wired from a parent component via the ui-view) through to the child', inject(function (\n        $rootScope\n      ) {\n        const $state = svcs.$state,\n          $q = svcs.$q;\n        $rootScope.log = [];\n\n        $stateProvider.state('parent', {\n          component: 'parentCallbackComponent',\n        });\n\n        $stateProvider.state('parent.child', {\n          component: 'childEventComponent',\n        });\n\n        $state.transitionTo('parent.child');\n        $q.flush();\n        expect($rootScope.log).toEqual([]);\n        expect(\n          el\n            .text()\n            .split(/\\s+/)\n            .filter((x) => x)\n        ).toEqual(['parentCmp', 'childCmp', 'Button']);\n\n        // - Click button\n        // - ng-click handler calls $ctrl.onEvent({ foo: 123, bar: 456 })\n        // - on-event is bound to $ctrl.handleEvent(foo, bar) on parentCallbackComponent\n        // - handleEvent pushes param values to the log\n        el.find('button')[0].click();\n        expect($rootScope.log).toEqual([123, 456]);\n      }));\n\n      // Test for #3111\n      it('should bind & bindings to a resolve that returns a function', inject(function ($rootScope) {\n        const $state = svcs.$state,\n          $q = svcs.$q,\n          log = [];\n\n        $stateProvider.state('resolve', {\n          component: 'childEventComponent',\n          resolve: {\n            onEvent: () => (foo, bar) => {\n              log.push(foo);\n              log.push(bar);\n            },\n          },\n        });\n\n        $state.transitionTo('resolve');\n        $q.flush();\n        expect(log).toEqual([]);\n        el.find('button')[0].click();\n        expect(log).toEqual([123, 456]);\n      }));\n\n      // Test for #3111\n      it('should bind & bindings to a resolve that returns an array-style function', inject(function ($rootScope) {\n        const $state = svcs.$state,\n          $q = svcs.$q,\n          log = [];\n\n        $stateProvider.state('resolve', {\n          component: 'childEventComponent',\n          resolve: {\n            onEvent: () => [\n              'foo',\n              'bar',\n              (foo, bar) => {\n                log.push(foo);\n                log.push(bar);\n              },\n            ],\n          },\n        });\n\n        $state.transitionTo('resolve');\n        $q.flush();\n        expect(log).toEqual([]);\n        el.find('button')[0].click();\n        expect(log).toEqual([123, 456]);\n      }));\n    }\n  });\n\n  if (angular.version.minor >= 5) {\n    describe('+ named views with component: declaration', function () {\n      let stateDef;\n      beforeEach(function () {\n        stateDef = {\n          url: '/route2cmp',\n          views: {\n            header: { component: 'header' },\n            content: { component: 'ngComponent' },\n          },\n          resolve: {\n            status: function () {\n              return 'awesome';\n            },\n            data: function () {\n              return 'DATA!';\n            },\n          },\n        };\n\n        el = angular.element('<div><div ui-view=\"header\"></div><div ui-view=\"content\"</div>');\n        svcs.$compile(el)(scope);\n      });\n\n      it('should disallow controller/template configuration in the view', function () {\n        expect(function () {\n          $stateProvider.state('route2cmp', stateDef);\n        }).not.toThrow();\n        expect(function () {\n          const state = extend({}, stateDef);\n          state.views.header.template = 'fails';\n          $stateProvider.state('route2cmp', state);\n        }).toThrow();\n      });\n\n      it('should render components as views', function () {\n        $stateProvider.state('route2cmp', stateDef);\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        const header = el[0].querySelector('[ui-view=header]');\n        const content = el[0].querySelector('[ui-view=content]');\n\n        expect(header.textContent).toBe('#awesome#');\n        expect(content.textContent).toBe('-DATA!-');\n      });\n\n      it('should allow a component view declaration to use a string as a shorthand', function () {\n        stateDef = {\n          url: '/route2cmp',\n          views: { header: 'header', content: 'ngComponent' },\n          resolve: {\n            status: function () {\n              return 'awesome';\n            },\n            data: function () {\n              return 'DATA!';\n            },\n          },\n        };\n        $stateProvider.state('route2cmp', stateDef);\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        const header = el[0].querySelector('[ui-view=header]');\n        const content = el[0].querySelector('[ui-view=content]');\n\n        expect(header.textContent).toBe('#awesome#');\n        expect(content.textContent).toBe('-DATA!-');\n      });\n\n      // Test for https://github.com/angular-ui/ui-router/issues/3353\n      it('should allow different states to reuse view declaration', function () {\n        const views = {\n          header: { component: 'header' },\n          content: { component: 'ngComponent' },\n        };\n\n        const stateDef1 = { name: 'def1', url: '/def1', views: views };\n        const stateDef2 = { name: 'def2', url: '/def2', views: views };\n\n        $stateProvider.state(stateDef1);\n        $stateProvider.state(stateDef2);\n      });\n    });\n  }\n\n  describe('+ bindings: declaration', function () {\n    it('should provide the named component binding with data from the named resolve', function () {\n      $stateProvider.state('route2cmp', {\n        url: '/route2cmp',\n        component: 'ng12Directive',\n        bindings: { data: 'foo' },\n        resolve: {\n          foo: function () {\n            return 'DATA!';\n          },\n        },\n      });\n\n      const $state = svcs.$state,\n        $httpBackend = svcs.$httpBackend,\n        $q = svcs.$q;\n\n      $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}-');\n      $state.transitionTo('route2cmp');\n      $q.flush();\n      $httpBackend.flush();\n\n      const directiveEl = el[0].querySelector('div ui-view ng12-directive');\n      expect(directiveEl).toBeDefined();\n      expect($state.current.name).toBe('route2cmp');\n      expect(el.text()).toBe('-DATA!-');\n    });\n\n    if (angular.version.minor >= 5) {\n      it('should provide default bindings for any component bindings omitted in the state.bindings map', function () {\n        $stateProvider.state('route2cmp', {\n          url: '/route2cmp',\n          component: 'ngComponent',\n          bindings: { data: 'foo' },\n          resolve: {\n            foo: function () {\n              return 'DATA!';\n            },\n            data2: function () {\n              return 'DATA2!';\n            },\n          },\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $httpBackend.expectGET('/comp_tpl.html').respond('-{{ $ctrl.data }}.{{ $ctrl.data2 }}-');\n        $state.transitionTo('route2cmp');\n        $q.flush();\n        $httpBackend.flush();\n\n        const directiveEl = el[0].querySelector('div ui-view ng-component');\n        expect(directiveEl).toBeDefined();\n        expect($state.current.name).toBe('route2cmp');\n        expect(el.text()).toBe('-DATA!.DATA2!-');\n      });\n    }\n  });\n\n  describe('componentProvider', function () {\n    it('should work with angular 1.2+ directives', function () {\n      $stateProvider.state('ng12-dynamic-directive', {\n        url: '/ng12dynamicDirective/:type',\n        componentProvider: [\n          '$stateParams',\n          function ($stateParams) {\n            return $stateParams.type;\n          },\n        ],\n      });\n\n      const $state = svcs.$state,\n        $q = svcs.$q;\n\n      $state.transitionTo('ng12-dynamic-directive', { type: 'ng12DynamicDirective' });\n      $q.flush();\n\n      const directiveEl = el[0].querySelector('div ui-view ng12-dynamic-directive');\n      expect(directiveEl).toBeDefined();\n      expect($state.current.name).toBe('ng12-dynamic-directive');\n      expect(el.text()).toBe('dynamic directive');\n    });\n\n    if (angular.version.minor >= 5) {\n      it('should load correct component when using componentProvider', function () {\n        $stateProvider.state('dynamicComponent', {\n          url: '/dynamicComponent/:type',\n          componentProvider: [\n            '$stateParams',\n            function ($stateParams) {\n              return $stateParams.type;\n            },\n          ],\n        });\n\n        const $state = svcs.$state,\n          $httpBackend = svcs.$httpBackend,\n          $q = svcs.$q;\n\n        $state.transitionTo('dynamicComponent', { type: 'dynamicComponent' });\n        $q.flush();\n\n        const directiveEl = el[0].querySelector('div ui-view dynamic-component');\n        expect(directiveEl).toBeDefined();\n        expect($state.current.name).toBe('dynamicComponent');\n        expect(el.text().trim()).toBe('dynamicComponent');\n      });\n    }\n  });\n\n  if (angular.version.minor >= 5) {\n    describe('uiOnParamsChanged()', () => {\n      let param;\n\n      beforeEach(inject(($rootScope: IRootScopeService, $compile: ICompileService) => {\n        param = null;\n\n        $stateProvider.state('dynamic', {\n          url: '/dynamic/:param',\n          component: 'dynamicComponent',\n          params: { param: { dynamic: true } },\n        });\n\n        $stateProvider.state('dynamic2', {\n          url: '/dynamic2/:param',\n          componentProvider: () => 'dynamicComponent',\n          params: { param: { dynamic: true } },\n        });\n      }));\n\n      it('should not be called on the initial transition', () => {\n        const $state = svcs.$state,\n          $q = svcs.$q;\n        $state.go('dynamic', { param: 'abc' });\n        $q.flush();\n        expect(el.text().trim()).toBe('dynamicComponent');\n      });\n\n      it('should be called when dynamic parameters change', () => {\n        const $state = svcs.$state,\n          $q = svcs.$q;\n        $state.go('dynamic', { param: 'abc' });\n        $q.flush();\n        $state.go('dynamic', { param: 'def' });\n        $q.flush();\n\n        expect(el.text().trim()).toBe('dynamicComponent def');\n      });\n\n      it('should work with componentProvider', () => {\n        const $state = svcs.$state,\n          $q = svcs.$q;\n        $state.go('dynamic2', { param: 'abc' });\n        $q.flush();\n        $state.go('dynamic2', { param: 'def' });\n        $q.flush();\n\n        expect(el.text().trim()).toBe('dynamicComponent def');\n      });\n    });\n  }\n});\n"
  },
  {
    "path": "test/viewHookSpec.ts",
    "content": "import * as angular from 'angular';\nimport { StateService } from '@uirouter/core';\n\ndeclare var inject;\n\ndescribe('view hooks', () => {\n  let app,\n    ctrl,\n    $state: StateService,\n    $q,\n    $timeout: angular.ITimeoutService,\n    log = '';\n  const component = {\n    bindings: { cmpdata: '<' },\n    template: '{{$ctrl.cmpdata}}',\n  };\n\n  const directive = {\n    restrict: 'E',\n    scope: { cmpdata: '=' },\n    bindToController: true,\n    controller: function () {},\n    controllerAs: '$ctrl',\n    template: '{{$ctrl.cmpdata}}',\n  };\n\n  beforeEach(() => {\n    app = angular.module('viewhooks', []);\n  });\n\n  beforeEach(\n    angular['mock'].module(($stateProvider) => {\n      ctrl = function controller() {\n        this.data = 'DATA';\n      };\n\n      if (angular.version.minor >= 5) {\n        app.component('foo', angular.extend({}, component, { controller: ctrl }));\n        app.component('bar', angular.extend({}, component));\n        app.component('baz', angular.extend({}, component));\n      } else if (angular.version.minor >= 2) {\n        app.directive('foo', () => angular.extend({}, directive, { controller: ctrl }));\n        app.directive('bar', () => angular.extend({}, directive));\n        app.directive('baz', () => angular.extend({}, directive));\n      }\n\n      $stateProvider.state({ name: 'foo', url: '/foo', component: 'foo' });\n      $stateProvider.state({ name: 'bar', url: '/bar', component: 'bar' });\n      $stateProvider.state({ name: 'baz', url: '/baz', component: 'baz' });\n      $stateProvider.state({ name: 'redirect', redirectTo: 'baz' });\n    })\n  );\n\n  beforeEach(angular['mock'].module('viewhooks', 'ui.router'));\n\n  beforeEach(inject((_$state_, _$q_, _$timeout_, $compile, $rootScope) => {\n    $state = _$state_;\n    $q = _$q_;\n    $timeout = _$timeout_;\n    $compile('<div><ui-view></ui-view></div>')($rootScope.$new());\n  }));\n\n  describe('uiCanExit', () => {\n    beforeEach(() => {\n      log = '';\n    });\n\n    const initial = () => {\n      $state.go('foo');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('');\n      expect($state.current.name).toBe('foo');\n    };\n\n    it(\"can cancel a transition that would exit the view's state by returning false\", () => {\n      $state.defaultErrorHandler(function () {});\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n        return false;\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('foo');\n    });\n\n    it('can allow the transition by returning true', () => {\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n        return true;\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('bar');\n    });\n\n    it('can allow the transition by returning nothing', () => {\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('bar');\n    });\n\n    it('can redirect the transition', () => {\n      ctrl.prototype.uiCanExit = function (trans) {\n        log += 'canexit;';\n        return trans.router.stateService.target('baz');\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('baz');\n    });\n\n    it('can cancel the transition by returning a rejected promise', inject(($q, $state) => {\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n        return $q.reject('nope');\n      };\n      initial();\n\n      $state.defaultErrorHandler(function () {});\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('foo');\n    }));\n\n    it('can wait for a promise and then reject the transition', inject(($timeout) => {\n      $state.defaultErrorHandler(function () {});\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n        return $timeout(() => {\n          log += 'delay;';\n          return false;\n        }, 1000);\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;delay;');\n      expect($state.current.name).toBe('foo');\n    }));\n\n    it('can wait for a promise and then allow the transition', inject(($timeout) => {\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n        return $timeout(() => {\n          log += 'delay;';\n        }, 1000);\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;delay;');\n      expect($state.current.name).toBe('bar');\n    }));\n\n    it(\"has 'this' bound to the controller\", () => {\n      ctrl.prototype.uiCanExit = function () {\n        log += this.data;\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('DATA');\n      expect($state.current.name).toBe('bar');\n    });\n\n    it('receives the new Transition as the first argument', () => {\n      const _state = $state;\n      ctrl.prototype.uiCanExit = function (trans) {\n        log += 'canexit;';\n        expect(typeof trans.treeChanges).toBe('function');\n        expect(trans.injector().get('$state')).toBe(_state);\n      };\n      initial();\n\n      $state.go('bar');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('bar');\n    });\n\n    // Test for https://github.com/angular-ui/ui-router/issues/3308\n    it('should trigger once when answered truthy even if redirected', () => {\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n        return true;\n      };\n      initial();\n\n      $state.go('redirect');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('baz');\n    });\n\n    // Test for https://github.com/angular-ui/ui-router/issues/3308\n    it('should trigger only once if returns a redirect', () => {\n      ctrl.prototype.uiCanExit = function () {\n        log += 'canexit;';\n        return $state.target('bar');\n      };\n      initial();\n\n      $state.go('redirect');\n      $q.flush();\n      $timeout.flush();\n      expect(log).toBe('canexit;');\n      expect($state.current.name).toBe('bar');\n    });\n  });\n});\n"
  },
  {
    "path": "test/viewScrollSpec.ts",
    "content": "import * as angular from 'angular';\ndeclare var inject;\n\nconst module = angular['mock'].module;\n\ndescribe('uiView', function () {\n  'use strict';\n\n  beforeEach(module('ui.router'));\n\n  describe('scrollIntoView', function () {\n    let elem;\n\n    beforeEach(function () {\n      elem = [{ scrollIntoView: jasmine.createSpy('scrollIntoView') }];\n    });\n\n    it('should scroll element into view after timeout', inject(function ($uiViewScroll, $timeout) {\n      $uiViewScroll(elem);\n      expect(elem[0].scrollIntoView).not.toHaveBeenCalled();\n\n      $timeout.flush();\n      expect(elem[0].scrollIntoView).toHaveBeenCalled();\n    }));\n\n    it('should return the promise from the timeout', inject(function ($uiViewScroll, $timeout) {\n      const promise = $uiViewScroll(elem);\n\n      $timeout.flush();\n      expect(elem[0].scrollIntoView).toHaveBeenCalled();\n      expect(promise).toBeDefined();\n    }));\n  });\n\n  describe('useAnchorScroll', function () {\n    beforeEach(\n      module(function ($provide, $uiViewScrollProvider) {\n        $provide.decorator('$anchorScroll', function ($delegate) {\n          return jasmine.createSpy('$anchorScroll');\n        });\n        $uiViewScrollProvider.useAnchorScroll();\n      })\n    );\n\n    it('should call $anchorScroll', inject(function ($uiViewScroll, $anchorScroll) {\n      $uiViewScroll();\n      expect($anchorScroll).toHaveBeenCalled();\n    }));\n  });\n});\n"
  },
  {
    "path": "test/viewSpec.ts",
    "content": "import * as angular from 'angular';\nimport { tail, curry, PathNode, PathUtils, ViewService, StateMatcher, StateBuilder, StateObject } from '@uirouter/core';\nimport { ng1ViewsBuilder, getNg1ViewConfigFactory } from '../src/statebuilders/views';\nimport { Ng1StateDeclaration } from '../src/interface';\ndeclare var inject;\n\ndescribe('view', function () {\n  let scope, $compile, $injector, elem, $controllerProvider, $urlMatcherFactoryProvider;\n  let root: StateObject, states: { [key: string]: StateObject };\n\n  beforeEach(\n    angular.mock.module('ui.router', function (_$provide_, _$controllerProvider_, _$urlMatcherFactoryProvider_) {\n      _$provide_.factory('foo', function () {\n        return 'Foo';\n      });\n      $controllerProvider = _$controllerProvider_;\n      $urlMatcherFactoryProvider = _$urlMatcherFactoryProvider_;\n    })\n  );\n\n  let register;\n  const registerState = curry(function (_states, stateBuilder, config) {\n    const state = StateObject.create(config);\n    const built: StateObject = stateBuilder.build(state);\n    return (_states[built.name] = built);\n  });\n\n  beforeEach(inject(function ($rootScope, _$compile_, _$injector_) {\n    scope = $rootScope.$new();\n    $compile = _$compile_;\n    $injector = _$injector_;\n    elem = angular.element('<div>');\n\n    states = {};\n    const matcher = new StateMatcher(states);\n    const stateBuilder = new StateBuilder(matcher, $urlMatcherFactoryProvider);\n    stateBuilder.builder('views', ng1ViewsBuilder);\n    register = registerState(states, stateBuilder);\n    root = register({ name: '' });\n  }));\n\n  describe('controller handling', function () {\n    let state, path: PathNode[], ctrlExpression;\n    beforeEach(() => {\n      ctrlExpression = null;\n      const stateDeclaration: Ng1StateDeclaration = {\n        name: 'foo',\n        template: 'test',\n        controllerProvider: [\n          'foo',\n          function (/* $stateParams, */ foo) {\n            // todo: reimplement localized $stateParams\n            ctrlExpression = /* $stateParams.type + */ foo + 'Controller as foo';\n            return ctrlExpression;\n          },\n        ],\n      };\n\n      state = register(stateDeclaration);\n      const $view = new ViewService(null);\n      $view._pluginapi._viewConfigFactory('ng1', getNg1ViewConfigFactory());\n\n      const _states = [root, state];\n      path = _states.map((_state) => new PathNode(_state));\n      PathUtils.applyViewConfigs($view, path, _states);\n    });\n\n    it('uses the controllerProvider to get controller dynamically', inject(function ($view, $q) {\n      $controllerProvider.register('AcmeFooController', function ($scope, foo) {});\n      elem.append($compile('<div><ui-view></ui-view></div>')(scope));\n\n      const view = tail(path).views[0];\n      view.load();\n      $q.flush();\n      expect(ctrlExpression).toEqual('FooController as foo');\n    }));\n  });\n});\n"
  },
  {
    "path": "tsconfig.docgen.json",
    "content": "{\n  \"extends\": \"./tsconfig.json\",\n  \"compilerOptions\": {\n    \"rootDir\": \".\",\n    \"baseUrl\": \".\",\n    \"paths\": {\n      \"@uirouter/core\": [\"src/includes/@uirouter/core/src\"],\n      \"@uirouter/core/lib/globals\": [\"src/includes/@uirouter/core/src/globals\"],\n      \"@uirouter/core/lib/state/stateRegistry\": [\"src/includes/@uirouter/core/src/state/stateRegistry\"],\n      \"@uirouter/core/lib/router\": [\"src/includes/@uirouter/core/src/router\"]\n    }\n  }\n}\n"
  },
  {
    "path": "tsconfig.json",
    "content": "{\n  \"compilerOptions\": {\n    \"emitDecoratorMetadata\": true,\n    \"experimentalDecorators\": true,\n    \"moduleResolution\": \"node\",\n    \"module\": \"commonjs\",\n    \"target\": \"es5\",\n    \"lib\": [\"es6\", \"dom\"],\n    \"allowSyntheticDefaultImports\": true,\n    \"outDir\": \"lib\",\n    \"declaration\": true,\n    \"skipLibCheck\": true,\n    \"sourceMap\": true,\n    \"inlineSources\": true\n  },\n  \"files\": [\"src/index.ts\", \"src/legacy/stateEvents.ts\", \"src/legacy/resolveService.ts\"]\n}\n"
  },
  {
    "path": "typedoc.json",
    "content": "{\n  \"name\": \"@uirouter/angularjs\",\n  \"readme\": \"README.md\",\n  \"out\": \"_doc\",\n  \"stripInternal\": true,\n  \"excludeNotExported\": true,\n  \"excludePrivate\": true\n}\n"
  }
]